• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A washing device (20) for cement-type solidification equipment in the barrel (10) comprises a washing tank (21) capable of storing an injector (23) inside the washing water for spraying washing water on the mixer (13) contained in the washing tank in order to wash the mixer, a washing waste water pump (29) for discharging residual wash water remaining in the washing tank; washing as a result of the washing, a solid separation container of the liquid (24) for storing the discharged wastewater so as to allow the separation into a solid content (S) and a liquid content (L), and a pump washing water supply unit (26) for delivering liquid contents separated from the solid separation container from the liquid at the injector in the form of washing liquid.
    公开号:FR3019999A1
    申请号:FR1553183
    申请日:2015-04-13
    公开日:2015-10-23
    发明作者:Ryo Yamamoto；Ayaka Yamasaki；Tetsuo Motohashi；Takao Takada；Tatsuya Ogawa
    申请人:Toshiba Corp；
    IPC主号:
    专利说明:

    [0001] DEVICE AND METHOD FOR WASHING A CEMENT-TYPE CEMENT SOLIDIFYING EQUIPMENT DIRECTLY IN THE FUTURE In the field of the invention, embodiments described below generally relate to a device and a method of washing cement type solidification equipment directly into the drum. In the background, in a nuclear-related facility, radioactive waste is produced such as waste liquid obtained by concentrating a radioactive residual liquid, a radioactive powder resin and a granular resin. Such radioactive waste is mixed with cement or water and placed in a solidification container, to be transformed into a cement-solidified product, and then, for example, buried underground.
    [0002] As a method of producing such a solidified product by cement, there is a process in the barrel and a process outside the barrel. The process in the drum is a process in which radioactive waste, cement, and water are kneaded by a cement mixer or the like in a solidification container such as a drum and solidified as such in this container solidification. The off-drum process is a process in which radioactive waste, cement, and water are premixed using a mixing device and a resulting kneaded product is packaged from a mixing device into a container. solidification and solidification. In these methods of producing the cement solidified products, the cement paste which comprises a radioactive material adheres to the cement mixer or the kneading device after kneading the cement, and it is necessary to remove the cement paste before the cement paste hardens on a surface of the cement mixer or kneading device. Thus, in a case of non-cask type cement solidification equipment, a configuration that includes a washing mechanism is adopted (see, for example, JP-A Hei 2-176 499 and JP-A Hei 7- 120,595). Here, the cement type solidification equipment in the barrel has advantages in that the equipment is simple and a quantity of wash water for removing the cement paste can be reduced compared to that of the type. out of the drum and is widely used. Since the adhesion of a cement paste to a cement mixer used in such cement solidification equipment of the type in the drum depends on a property of a radioactive waste, for example, a viscosity of the paste With cement or the like, the washing of the cement mixer is conventionally carried out manually in the cement type solidification equipment in the barrel. A brief summary will now be given below. However, in a case of manual washing of a cement mixer, there is a problem that the workload of an operator is high. In addition, it is desired to reduce the generation of a quantity of wash wastewater which becomes a secondary waste. The present invention has been made in order to solve the aforementioned problems and it is an object of the present invention to provide a device for washing a cement type solidification equipment in the barrel which reduces a load of The washing operation is to reduce the generation of a quantity of wash wastewater which can become a secondary waste, when washing the cement type solidification equipment in the barrel. For this purpose, a device for washing cement-type solidification equipment in the barrel is created comprising a mixer for mixing radioactive waste and cement in a solidification container, the device comprising: a washing tank intended to store washing water inside; an injector for spraying washing water on the mixer placed in the wash tank to wash the mixer; a washing wastewater pump for discharging wash wastewater present in the wash tank as a result of washing; a solid separation container of the liquid for storing the discharged wastewater so as to allow the separation into a solid content and a liquid content; and a washing water supply pump for delivering the liquid contents separated from the solid separation container from the liquid to the injector as a washing liquid.
    [0003] One embodiment of the cement type solidification equipment washing device in the barrel comprises the washing tank, a displacement mechanism, a plurality of washing injectors, the solid separation container of the liquid, the pump waste water washing, and the washing water supply pump.
    [0004] The equipment for washing cement-type solidification equipment in the barrel comprises a mixer for kneading radioactive waste, water and cement in a solidification container. The wash tank has a cylindrical shape at the bottom and has an upper opening in which the mixer is inserted from above, and can store wash water therein. The moving mechanism moves the wash tank to a wash position and a wait position below the mixer. The plurality of washers spray the wash water into the wash tank to wash the mixer. The solid separation container of the liquid stores waste washings discharged from the wash tank, and separates the washing wastewater into a solid content and the wash water. The waste water wash pump discharges the wash water from the wash tank and sends it into the solid separation container of the liquid. The washing water supply pump delivers the wash water, the solid content of which has been separated in the solid separation container from the liquid, to the washing injector. In one embodiment, the wash tank has a lower surface on the inner side of a conical shape. According to one embodiment, the device further comprises a raising and lowering mechanism for raising and lowering the mixer; and a control unit for controlling the moving mechanism, the raising and lowering mechanism, the washing waste water pump, and the washing water supply pump so as to perform the following sequentially executed steps a step of movement by the mechanism of movement of the washing tank from the waiting position to the washing position; a step of descent by the up and down mechanism of the mixer to place the mixer in the wash tank; a step of vaporization by the injector of the washing water on the mixer in the washing tank to wash the mixer; and a step of unloading, by the washing waste water pump, washing waste water, stored in the washing tank, in the solid separation container of the liquid. According to one embodiment, the mixer rotates and moves up and down during the washing step. According to one embodiment, the control unit controls the rotation of the mixer soaked in the wash water inside the wash tank after the washing step. According to one embodiment, the mixer rotates during the unloading step. In one embodiment, the wash tank has a plurality of attachment ports for securing the injector thereon. According to one embodiment, the solid separation container of the liquid comprises: a lateral portion of a cylindrical shape; a lower part; an upper opening; and a cover for covering the top opening so that it can be opened and closed. The invention also relates to a method for washing a type of cement solidification equipment in the barrel comprising a mixer for kneading radioactive waste in a solidification container, the method comprising: setting up the mixer in a wash tank; spraying wash water from an injector on the mixer placed in the wash tank to wash the mixer; discharging the wash wastewater stored in the wash tank as a result of washing into a solid separation container of the liquid; separating the wash wastewater in the solid separation container from the liquid into a solid content and a liquid content; and supplying the separated liquid contents to the injector as a washing liquid. One embodiment of a method of washing cement type solidification equipment directly into the barrel comprises a washing tank moving step, a mixer descending step, a washing step, a step washing by soaking, and the step of discharging waste water washing. The washing process is intended to wash the type of cement solidification equipment in the barrel comprising a mixer for mixing radioactive waste, water and cement in a solidification container. In the wash tank displacement step, a wash tank is moved from a standby position to a wash position. In the mixer descent step, the mixer is lowered and received in the wash tank. In the wash step, while the mixer is rotated and moved up and down in the wash tank, the wash water is vaporized by a wash injector on the mixer. In the soak wash step, after the wash step, the mixer is soaked in the wash water stored in the wash tank and rotated. In the washing wastewater discharge step, after the soaking step, while the mixer is rotated, the wash wastewater stored in the wash tank is discharged. According to one embodiment, the wash tank has a lower surface of the inner side of a conical shape. According to one embodiment, the mixer rotates and moves up and down during the washing step. According to one embodiment, the method further comprises rotating the mixer dipped in the washing water inside the washing tank after the washing step. According to one embodiment, the mixer rotates during the unloading step.
    [0005] In one embodiment, the wash tank has a plurality of attachment ports for securing the injector thereon. According to one embodiment, the solid separation container of the liquid comprises: a lateral portion of a cylindrical shape; a lower part; an upper opening; and a cover for covering the top opening 10 in a manner that can be opened and closed. Depending on the device and method of washing cement type solidification equipment directly into the barrel of the present embodiment, a work load of an operator can be reduced when washing a mixer. In addition, the generation of a quantity of secondary waste can be reduced. The drawings are briefly described below. Fig. 1 is a schematic block diagram showing a configuration of cement type solidification equipment in the barrel of which a mixer is an object to be washed of an embodiment; Fig. 2 is a hydraulic circuit diagram schematically showing a configuration of a cement type solidification equipment washing device in the barrel of the embodiment; and Fig. 3 is a flowchart showing a washing method using the cement solidification equipment washing device of the type in the barrel of the embodiment. Hereinafter, one embodiment will be described in detail in referring to the drawings. Fig. 1 is a block diagram showing, schematically, a configuration of cement type solidification equipment in the barrel 10 which is an object to be washed of the present embodiment. The cement solidification equipment of the type in the barrel 10 comprises a solidification container 11, a solidification material dosing tank 12, a mixer 13, and a mixer lid 14. The solidification container 11 is filled radioactive waste. The solidification material dosing tank 12 stores the cement which is a solidification material. The mixer 13 kneads the contents in the solidification container 11. The mixer lid 14 prevents the contents of the solidification container 11 from spreading outside the solidification container 11 at the time of mixing. The method of solidifying radioactive waste using cement type solidification equipment in the drum 10 is carried out by way of example as follows. The radioactive waste is deposited beforehand in the solidification container 11, and cement is delivered from the metering tank of solidification material 12 into the solidification container 11. In addition, water is delivered, and then the contents of the solidification container 11 are kneaded by means of the mixer 13. The mixer 13 comprises, for example, a stirring blade and kneads the radioactive waste, the cement and the water in the solidification container 11 with the blade. The stirrer is rotated by a motor M. After kneading, the mixer 13 is taken out of the solidification container 11 and a kneaded product in the solidification container 11 is solidified. The solidification container 11, after the mixer 13 has been removed, is sent out of the cement type solidification equipment into the barrel 10 by a displacement mechanism 22, for example, and a new solidification container 11 is conveyed in the cement type solidification equipment in the barrel 10. FIG. 2 is a schematic diagram of a hydraulic circuit showing, schematically, a configuration of a washing device 20 of cement type solidification equipment. in the barrel of the present embodiment. The washing device 20 comprises a washing tank 21 and the moving mechanism 22. The washing tank 21 is used in the cement-type solidification equipment of the type in the drum 10 and receives and ensures the washing of the mixer 13 on which adheres the kneaded product which has a solid content S. The displacement mechanism 22 moves the washing tank 21. The washing tank 21 comprises a washing injector 23 which vaporizes washing water. In addition, the washing device 20 of the cement type solidification equipment in the barrel comprises a solid separation container of the liquid 24 which stores washing wastewater produced in the washing tank 21 in order to allow separation. washing waste water to the solid content (solid component) S and washing water (liquid component) L. The solid separation container of the liquid 24 is connected to the washing injector 23 by a pipe of washing water supply 25. A washing water supply pump 26 which delivers the washing water L in the solid separation container of the liquid 24 to the washing injector 23 is interposed on the supply pipe in wash water 25. A valve 1, such as an opening / closing valve, is interposed on an upstream side of the washing water supply pump 26. In addition, a filter 27 which traps the solid content S in the wash water L, can it is interposed on the washing water supply pipe 25. In addition, the solid separation container of the liquid 24 is connected to a purge outlet 21c arranged on a lower end portion of a sidewall portion of the washing tank 21 by a waste water transfer pipe 28. A valve V2 is interposed near a connecting portion of the waste water transfer piping 28 and the washing tank 21. furthermore, a washing wastewater pump 29 which transfers the washing waste water inside the washing tank 21 into the solid separation container of the liquid 24 is interposed on the washing water transfer pipe 28. A valve V3 is interposed on an upstream side of the washing waste water pump 29 of the waste water transfer pipe 28. As has been previously described, in the washing device In the case of the cement solidification equipment of the type in the barrel, the washing water L in the solid separation container of the liquid 24 is delivered to the washing tank 21 via the washing water supply pipe 25. and the washing waste water produced in the washing tank 21 is transferred to the solid separation container of the liquid 24 by the waste water transfer pipe 28. The displacement mechanism 22, after transporting the container of solidification 11 after kneading out of the solidification equipment 10, transfers the washing tank 21 which has been placed in a waiting position to a washing position below the mixer 13. In addition, the displacement mechanism 22 transfers the washing tank 21, used for washing, in the standby position. In order to move both the solidification container 11 and the washing tank 21 with the displacement mechanism 22, it is preferable to use, as a washing tank 21, an almost identical container, in size and in shape, to the solidification container 11, for example, a drum with an internal capacity of 200 L. The washing tank 21 has a cylindrical shape with a bottom and has an upper opening 21a in which the mixer 13 is inserted from above. An inner bottom surface 21b of the wash tank 21 is preferably made of an inclined shape which is inclined toward the purge outlet 21c of the wash waste water. It is preferable that the inclined shape is a cone in which a center of the inner bottom surface 21b has, for example, a projecting shape. An inclination angle of the inclined shape is between about 5 and 15 degrees, although depending on a shape and a size of the mixer 13. In the present embodiment, the angle of inclination is equal to About 10 degrees. Thus, it is possible not to leave the solid S (adhesive) content, removed from the mixer 13, remain in the washing tank 21 and discharge the solid content S together with the washing water L effectively from the washing tank 21. As a washing injector 23, it is possible to use a single injector which directly sprays water under high pressure, a turbine-type injector which vaporises water under high pressure in vaporized form, etc. The washing injector 23 can be attached to the washing tank 21 via a fixing orifice 30 arranged on a wall surface, for example, of the washing tank 21. such fixing method is adopted and a number of fixing holes 30 are previously arranged in the washing tank 21, the number and the position of arrangement of the washing injectors 23 can be changed appropriately according to of a type, a form, etc., of the mixer 13. In addition, for example, by using an articulated joint or the like to provide the connection of the fixing orifice 30 and the washing injector 23, the washing injector 23 can be attached to the washing tank 21 at a desired angle, can be fixed in such a way that the attachment angle can be changed, etc.
    [0006] An end portion of the upstream side of the wash water supply pipe 25 includes a suction pipe (not shown) for drawing wash water L into the solid separation container of the liquid 24. The suction pipe is positioned below a water level of the washing water L. The suction pipe is preferably arranged to have a hydraulic structure in which the connection to the pipe washing water supply 25 is carried out using an articulated joint or the like comprising, for example, a float so as to be positioned near the surface of the water of the wash water L, even when the level water wash water L varies.
    [0007] A secondary pipe 31 is connected to the washing water supply pipe 25 near an outlet of the solid separation container of the liquid 24. A valve V4 is interposed on the secondary pipe 31. In addition, a valve V5 is connected to the washing water supply pipe 25 on an upstream side of a connection point to the secondary pipe 31, and a valve V6 is interposed on a downstream side. The secondary pipe 31 is a pipe for sucking air when the bleeding from the inside of the inner part of the pipe of the washing device 20 of the cement solidification equipment of the type into the drum is implemented. . An end portion of the secondary piping 31 is positioned higher than the surface of the water of the wash water L so as not to be in contact with a liquid surface of the wash water L in the solid liquid separation container 24. A first bypass pipe 32 which bypasses the washing water supply pump 26 is connected to the washing water supply pipe 25. A V7 valve is interposed on the first pipework Bypass 32. An end portion of a downstream side of the waste water transfer piping 28 is arranged higher than the water surface of the wash water L in the separation container. of solid of the liquid 24 so as not to be in contact with the wash water L. This is done for the purpose of discharging the air into the solid separation container of the liquid 24 when the purging of the interior of the pipework of the washing device 20 cement type solidification equipment in the barrel is used. Further, a second bypass piping 33 which bypasses the wash water pump 29 is connected to the waste water transfer piping 28. A valve V8 is interposed on the second bypass piping 33. The piping The wash water supply pipe 25 and the wash waste transfer pipe 28 are connected by a wash tank bypass line 34 which bypasses the wash tank 21. The wash tank bypass line 34 is connected to the washing water supply pipe 25 via a valve V9, a three-way valve or the like. The solid separation container of the liquid 24 is, for example, a container of a cylindrical shape with bottom and has an upper opening. It is preferable that the top opening has a cover 35 to prevent the dispersion of the returned water to the solid separation container from the liquid 24. The cover 35 is preferably formed to have a structure which comprises, for example, a counterweight type drive mechanism for the purpose of being easily arranged to be able to move up and down. Thus, the exchange and displacement of the solid separation container of the liquid 24 can be implemented more easily. In addition, it is preferable that the wash water supply pipe 25, the secondary pipe 31, and the wash water discharge pipe 28 are arranged so that they can be moved in accordance with the raising and lowering of the cover 35. Thus, the exchange or the like of the solid separation container of the liquid 24 can be realized more easily. By using, for example, a drum with a capacity of 200 L as the solid separation container of the liquid 24, the washing device 20 of the cement type solidification equipment in the barrel can be simplified. In addition, the barrel-type cement solidification equipment washing device 20 comprises a control unit 36 which controls the attack of the mixer 13, of the displacement mechanism 22, of the water supply pump. washing 26, wash water pump 29 and valves V1 to V9. Each step in a method of washing cement solidification equipment of the type in the drum described later is carried out automatically by the control of the control unit 36. Next, the washing method using the device of Cement solidification equipment washing of the type in the barrel of the present embodiment will be described. Fig. 3 is an algorithm of the washing method of the present embodiment. The washing method of the present embodiment comprises a washing tank displacement step S1, a mixer descent step S2, a washing step S3, and a washing waste water discharge step S4. The washing step S3 comprises a washing step S31 and a soaking step S32. In addition, a purge step S5 may, if necessary, be added after the unloading step of washing waste water S4. The mixer 13 (agitator blade) used to ensure mixing in the solidification equipment 10 in Figure 1 is removed from the solidification container 11 by a rise and fall mechanism not shown. After the solidification container 11 has been removed from below the mixer by the moving mechanism 22, the washing tank 21, placed in the waiting position, is moved to the washing position below the mixer 13 by the Displacement mechanism 22 (washing tank displacement step S1). In a state in which the washing water supply pump 26 and the washing waste water pump 29 are stopped, the mixer 13 is lowered by the raising and lowering mechanism described above, and placed in an upper part of the tank washing 21 (step of descent of the mixer S2). In the washing step S3, the valve V9 is switched to the washing injector side23. In addition, the valves V1, V5, and V6 are open and the valves V2, V3, V4, V7, and V8 are closed. While the washing waste water pump 29 is still stopped, the washing water supply pump 26 is activated, and the washing water L in the solid separation container of the liquid 24 is delivered to the injector The washing water is pressurized by the washing water supply pump 26 and vaporized from the washing injector 23, so that the washing water is pressurized by the washing water supply pipe 26. washing the mixer 13 (washing step S31 jet). In this regard, with the rotation of the mixer 13 and its movement from top to bottom, it is possible to wash the solid content S (adherent) which adheres to the mixer 13 effectively. The washing waste water produced by the washing is stored in the washing tank 21. When the water level of the washing wastewater in the washing tank 21 begins to rise, the mixer 13 is lowered and soaked in the washing tank 21. washing water L in the washing tank 21 while the mixer 13 is rotated (soaking step S32). When the entire mixer 13 is soaked in the washing water L in the washing tank 21, the vaporization of the washing water L can be stopped. In addition, the mixer 13 can be moved up and down in the washing waste water by the up and down mechanism described above. Thus, the adhering portion on the mixer 13 can be washed effectively. Next, the step of discharging waste water washing S4 is carried out. If the mixer 13 is moved up and down, the movement is, if necessary, stopped and the valve 9 is switched to the wash tank bypass line 34, the valves V2 and V3 are controlled in a controlled manner. to be opened and the valves V1, V4 to V8 are controlled so as to be closed. The washing water supply pump 26 is stopped and the washing waste water pump 29 is activated, so that the washing waste water in the washing tank 21 is transferred to the solid liquid separation container 24 On this occasion, the mixer 13 is held so as to be rotated. In the solid separation container of the liquid 24, the solid content S in the washing wastewater is deposited and the washing wastewaters separate into a solid content S and washing water L.
    [0008] Here, if the mixer 13 is rotated, the solid content S in the wash wastewater is easily collected near the center of the wash tank 21 by a vortex flow. If the inner bottom surface 21b of the wash tank 21 is formed into a conical shape, the solid content S can be moved in an inner wall direction of the wash tank 21, and thus the solid content S can be efficiently discharged. The washing water L separating in the solid separation container from the liquid 24 can be reused by being delivered to the washing injector 23 by the washing water supply pump 26.
    [0009] After the washing waste water in the washing tank 21 has been discharged into the washing wastewater discharge step S4, the purge step S5 is, if necessary, carried out. In the purge step S5, the wash water L remaining in the pipework constituting the washing device 20 of the cement type solidification equipment in the drum is discharged with the solid content S into the separation container. solid solid of the liquid 24. Thus, the solidification of the solid content S in the pipework, causing the blocking of the pipework, can be prevented. The purge step S5 comprises three steps S51 to S53. In step S51, purging the interior of the wash water supply pipe 25, the wash water transfer piping 28, which bypassed the wash water pump 29, and the second bypass piping 33 is implemented. In step S52, purging the interior of the wash water supply pipe 25 which bypassed the wash water supply pump 26, the first bypass pipe 32, and the water pipe waste water transfer 28 is carried out. In step S53, the purging of the inside of the wash water supply pipe 25, the wash water transfer piping 28, and the wash tank bypass pipe 34 is set implemented. With respect to steps S51 to S53, either of the steps may be implemented independently or two or more steps may be implemented in an associated manner. The foregoing steps can be appropriately modified in association and sequence, depending on the piping that represents an object to be purged. In step S51, the washing water supply pump 26 is activated and the washing wastewater pump 29 is stopped. The valve V9 is switched to the side of the wash tank bypass line 34, the valves V1, V4, V6, and V8 are controlled to be open and the valves V2, V3, V5, and V7 are controlled in a controlled manner. to be closed. Thus, air in an upper part of the solid separation container of the liquid 24 is sucked through the secondary pipe 31, and the air is discharged to the washing water supply pipe 25, the 34 tank washout bypass piping, 28 wash water transfer piping that bypassed the 29 wash water pump, and the second bypass piping 33. By this exhaust, the wash water L and the solid content S therein remaining within the wash water supply pipe 25, the wash water transfer piping 28 which bypassed the wash water pump 29 and the second bypass piping 33 is sent into the solid separation container of the liquid 24. In step S52, the wash water supply pump 26 is stopped and the wash water pump 29 isactivated. The valve V9 is switched to the side of the washing tank bypass line 34, the valves V3, V4, V6, and V7 are controlled to be open and the valves V1, V2, V5, and V8 are controlled from way to be closed. Thus, the air in the upper part of the solid separation container of the liquid 24 is sucked through the secondary piping 31, and the air is discharged into the washing water supply pipe 25 which bypassed the washing water supply pump 26, the first bypass piping 32, the wash tank bypass piping 34 and the waste water transfer piping 28. By this exhaust, the wash water L and the solid content S therein which remains within the wash water supply pipe 25 which bypassed the wash water supply pump 26, the first bypass piping 32, the piping washing tank bypass 34, and the waste water transfer piping 28 are sent into the solid separation container of the liquid 24.
    [0010] In step S53, both the wash water supply pump 26 and the wash waste water pump 29 are activated. The valve V9 is switched to the injector side 23, the valves V1, V2, V3, V4, and V6 are controlled to be open and the valves V5, V7, and V8 are controlled to be closed. Thus, the air is sucked from the upper opening of the wash tank 21, and the air is discharged into the wash water supply pipe 25, the wash tank bypass pipe 34, and the waste water transfer piping 28. By this evacuation, the washing water L and the solid content S present therein which remain inside the washing water supply pipe 25, the wash tank bypass piping 34, and the wash wastewater transfer piping 28 are sent into the solid separation container of the liquid 24. In the washing process of the present embodiment, the control of each device in the washing tank displacement step S1, the mixer descent step S2, the washing step S3, the washing waste water discharging step S4 and the purging step S5 described above can be - 17 - implementation It is noted that Table 1 shows the operating states of the first and second pumps and the switching or open / closed state of the valves V1 to V9 in the washing step S3. , the waste water discharge step S4, and the purge steps S51 to S53. Table 1 Unloading Stage Step Purge step S5 wash S3 wash water S4 S51 S52 S53 Wash water supply pump 26 Ordered Stopped Ordered Stopped Ordered Water pump Stopped Ordered Stopped Ordered Ordered Waste Wash 29 Valve VI Open Closed Open Open Closed Valve V2 Closed Open Open Valve V3 Closed Open Open Open Valve Closed V4 Open Open Valve V5 Open Closed Close Close Closed Valve V6 Open Open Open Open Open Valve V7 Closed Closed Closed Open Closed V8 Valve Closed Closed Open Closed Closed V9 Valve Side injector side 23 Side Side Piping side side Piping Side injector side 23 tank contortion bypass 34 Wash Tank bypass 34 Wash Tank 34 As previously described, according to the provision In the process of washing a cement solidification equipment of the type directly into the barrel of the present embodiment, it is possible to automatically carry out the steps of washing the mixer of the cement solidification equipment of the type in the barrel of radioactive waste, unloading wash water from the washing tank, and purging the inside of the piping. Thus, the washing work of the mixer can be reduced. In addition, since the wash waste waters are used as wash water, the generation of secondary residue can be reduced. Although some embodiments have been described, these embodiments have been presented by way of example only, and should not be construed as limiting the scope of the invention. Indeed, the new embodiments described above can be implemented in a variety of other forms; in addition, various changes, omissions, and substitutions on the form of the embodiments described above can be made without departing from the spirit of the invention. The described invention and its equivalents are intended to cover such shapes or modifications as might fall within the scope of the invention.
    权利要求:
    Claims (15)
    [0001]
    REVENDICATIONS1. A washing device (20) for cement type solidification equipment in the barrel (10) comprising a mixer (13) for mixing radioactive waste and cement in a solidification container (11), the device comprising: a wash tank (21) for storing wash water therein; an injector (23) for spraying washing water on the mixer 10 placed in the wash tank to wash the mixer; a washing waste water pump (29) for discharging wash wastewater present in the wash tank as a result of washing; a solid separation container of the liquid (24) for storing the discharged wastewater so as to allow the separation into a solid content and a liquid content; and a wash water supply pump (26) for delivering the separated liquid contents from the solid separation container from the liquid to the injector as a wash liquid.
    [0002]
    The device of claim 1, wherein the wash tank has a bottom surface (2 lb) of the inner side of a conical shape.
    [0003]
    Apparatus according to claim 1 or 2, further comprising: a movement mechanism (22) for moving the wash tank between a washing position and a waiting position; A rise and fall mechanism for raising and lowering the mixer; and a control unit (36) for controlling the moving mechanism, the raising and lowering mechanism, the washing waste water pump, and the washing water supply pump to perform the following steps performed. sequentially: a step of moving (S1) by the mechanism of movement of the washing tank from the standby position to the washing position; a descent step (S2) by the raising and lowering mechanism of the mixer to place the mixer in the washing tank; a step of vaporization, by the injector, of the washing water on the mixer in the washing tank in order to wash the mixer; and an unloading step (S4), by the washing waste water pump, of the washing waste water, stored in the washing tank, in the solid separation container of the liquid.
    [0004]
    4. Device according to claim 3, wherein the mixer rotates and moves up and down during the washing step.
    [0005]
    5. Device according to claim 3 or 4, wherein the control unit controls the rotation of the mixer soaked in the washing liquid, inside the washing tank, after the washing step.
    [0006]
    6. Device according to any one of claims 3 to 5, wherein the mixer rotates during the unloading step.
    [0007]
    7. Device according to any one of claims 1 to 6, comprising a plurality of injectors, wherein the washing reservoir comprises a plurality of fixing holes (30) for fixing the plurality of injectors thereon .
    [0008]
    8. Device according to any one of claims 1 to 7, wherein the solid separation container of the liquid comprises: a lateral portion of a cylindrical shape; a lower part; an upper opening (21a); and a cover (35) for covering the top opening so that it can be opened and closed.
    [0009]
    9. A method of washing a type of cement solidification equipment in the barrel comprising a mixer for mixing radioactive waste in a solidification container, the method comprising: placing the mixer in a tank of washing ; spraying wash water from an injector on the mixer placed in the wash tank to wash the mixer; discharging the wash wastewater stored in the wash tank as a result of washing into a solid separation container of the liquid; separating the wash wastewater in the solid separation container from the liquid into a solid content and a liquid content; and supplying the separated liquid contents to the injector as a washing liquid.
    [0010]
    The method of claim 9, wherein the wash tank has a lower surface of the inner side of a conical shape.
    [0011]
    The method of claim 9 or 10, wherein the mixer rotates and moves up and down during the washing step.
    [0012]
    The method of any one of claims 9 to 11, further comprising rotating the mixer dipped in the wash water within the wash tank after the washing step. 20
    [0013]
    13. The method of any one of claims 9 to 12, wherein the mixer rotates during the unloading step.
    [0014]
    The method of any one of claims 9 to 13, wherein the wash tank has a plurality of attachment holes for securing the injector thereon. 25
    [0015]
    15. A method according to any one of claims 9 to 14, wherein the solid separation container of the liquid comprises: a lateral portion of a cylindrical shape; a lower part; an upper opening; and a cover for covering the top opening in an openable and closed manner.
    类似技术:
    公开号 | 公开日 | 专利标题
    FR3019999B1|2019-06-21|DEVICE AND METHOD FOR WASHING A CEMENT-TYPE SOLIDIFICATION EQUIPMENT DIRECTLY IN THE FUTURE
    FR2509626A1|1983-01-21|MODULARIZED MULTI-STAGE SEPARATOR
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    同族专利:
    公开号 | 公开日
    JP2015206623A|2015-11-19|
    JP6479335B2|2019-03-06|
    FR3019999B1|2019-06-21|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    CN106843292A|2017-03-23|2017-06-13|四川理工学院|The motion control method and system of a kind of radioactive solid waste bucket detection means|JPS5385300A|1977-01-05|1978-07-27|Hitachi Ltd|Radioactive waste disposal method|
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    JPH03135403A|1989-10-23|1991-06-10|Takeo Mori|Thickener|
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    CN108320828A|2017-12-27|2018-07-24|中核四0四有限公司|A kind of automatic ash poking material poking device of Cemetation|
    法律状态:
    2016-04-04| PLFP| Fee payment|Year of fee payment: 2 |
    2017-03-20| PLFP| Fee payment|Year of fee payment: 3 |
    2018-03-15| PLFP| Fee payment|Year of fee payment: 4 |
    2018-11-02| PLSC| Publication of the preliminary search report|Effective date: 20181102 |
    2020-03-12| PLFP| Fee payment|Year of fee payment: 6 |
    2021-03-09| PLFP| Fee payment|Year of fee payment: 7 |
    2022-02-21| PLFP| Fee payment|Year of fee payment: 8 |
    优先权:
    申请号 | 申请日 | 专利标题
    JP2014085917|2014-04-17|
    JP2014085917A|JP6479335B2|2014-04-17|2014-04-17|Cleaning system and cleaning method for in-drum cement solidification device|
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