• 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:
    The invention relates to a method for applying a flowable material to the inner surface of a hollow body and to an apparatus for carrying out the method. The purpose of the invention is to ensure uniform deposition of the material. For this, in the method before the feed and during the feeding of the material-loaded flow
    公开号:SU1620042A3
    申请号:SU874202893
    申请日:1987-07-02
    公开日:1991-01-07
    发明作者:Экерт Беат；Хубер Гвидо；Рихле Норберт
    申请人:Лонца Аг (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to a method for applying a flowable material to an inner surface of a hollow body and to an apparatus for carrying out the method
    The purpose of the invention is to ensure uniform deposition of the material.
    The drawing shows a device for carrying out a method for applying a flowable material to the inner surface of a hollow body, a general view with a partial cut.
    The device contains a passage body 1, which is equipped with a line 2 for supplying a carrier gas flow loaded with a material. The passage unit 1 is made conical in the form of a diffuser with means of twisting the loaded carrier gas flow, made in the form of guide guides 3 placed in the cavity of the diffuser with an inclination to its axis 3. The passage member is also provided with nozzles 4 installed at the exit of the diffuser on the guide vanes, communicated with the source of supply of additional gas not loaded with material and inclined towards the axis of the cavity of the diffuser in the direction of inclination of the guide vanes 3 for imparting load to the loaded carrier gas and not loading Nome pictures gas twist with the same direction of rotation.
    The diffuser with its inlet part 5 is set at a distance of 15-35 mm (mainly 20-30 mm), from the output end 6 of the line 2 supplying the carrier gas flow loaded with the material, forming the intermediate volume 7, due to which the well-known jet device (jet pumps, dispensers) effect way
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    the best distribution of material in the flow of carrier gas exiting the conduit.
    In the event that the flow of air to the stream of the carrier gas flow loaded by the material is undesirable, an outwardly closed volume may be provided to cover the intermediate volume 7 with the gas inlet.
    Along the intermediate volume 7, pipelines 8 lead to nozzles 4 and connected to a cylinder 9 encompassing a part of the supply line 2 of the carrier gas flow loaded with material and having an attachment 10 for supplying additional gas not loaded with material.
    In the throughput volume 11 of the diffuser, there is a conical body 12 which is conically extended in the direction of flow movement in the form of a diffusion cone, open at both ends in order to support the action known in jet devices.
    The diffuser has a double-walled housing 13 for a cooler or heat carrier coming through supply lines 14. The diffuser housing also has a drain for a coolant or heat carrier (not shown).
    The displacement body 12 in the vice diffusion cone is hollow in order to keep small warming due to thermal radiation from the pressed tube of the preform. For the same reason, the guide vanes 3, as -mozhno connected with the body of the diffuser to ensure thermal conductivity, for example, welded.
    The guide vanes 3 of the twist means are curved in cross section in the form of a groove with a radius of curvature increasing in the direction of flow with a concave side directed to the rotating flow 15, while the guide vanes in the longitudinal direction to the exit of the diffuser are curved and have a slope increasing to the axis of the diffuser .
    The guide vanes 3 can be made with portions protruding beyond the exit edge of the flow body, tapering in the direction of flow and forming centering means for centering the flow body with respect to the hollow space of the workpiece (not shown).
    The nozzles 4 for supplying additional gas not loaded with material are located at the ends of the guide vanes 3 at the exit from the diffuser under such an inclination to the axis 16 of the diffuser that the angle of elevation corresponding to the twist of the helix of the material not loaded by the gas flow is less than with the spin of the loaded gas flow - strong Nozzles can be made in the form of Lawal nozzles.
    When the passage body is made in the form of a diffuser, from three to five, mainly four, guide vanes can be provided. A nozzle 4 is located at the end of each second guide vane 3.
    The angle of the apex of the diffusion cone (displacement-body 12) may be for a hollow volume diameter of 15-20 cm, 35 °, for smaller hollow volume diameters 30, for larger hollow volume diameters 40.
    For axial movement of the device, a moving unit 17 is provided (displacement path, for example, 40 cm) with a flexible coupling 18, which provides the possibility of leading the control unit 1 to the hollow volume, its centering relative to it and returning it.
    When using the device for removing scale from the billet, the internal diameter of the end 6 of the line 2 for feeding the carrier gas flow loaded is equal to 10 mm, in case 100-150 g of powdered material is consumed for each jet preparation.
    1 6200426
    descaling, and up to 30 mm and, if, consumes about 400 g of descaling agent.
    The method of applying a flowable material to the inner surface of the hollow body is carried out as follows.
    In accordance with a method, for example, for removing scale from the inner surface of pressed tubes, blanks for the manufacture of seamless
    ten
    tubes 4-12 m long with an inner diameter of 10-35 cm. The pressed billet is supplied to the device in such a way that the hollow volume of the tube billet is coaxial with the throughput volume 11 of the conduit member 1. Then the device is driven by t close to the hollow volume and, if necessary, centered due to the flexible coupling 18. If necessary, the sections of the guide vanes 3, which are narrowed in for example, are centering (not shown) protruding beyond the outlet edge of the diffuser. The movement of the stream. Thereafter, air not loaded with the descaling agent is first supplied to attachment 10 with a pressure of, for example, 6 bar and is blown into the hollow volume through nozzles 4.
    Two unloaded gas flows to the inner surface are supplied to the end of the hollow space in the form of a helix and with axial displacement one relative to another. Non-material gas streams can be directed into the hollow volume and evenly distributed around the circumference of the hollow volume to form several helical streams passing through the hollow space.
    After 0.5–3 s, line 2 poses pressure, for example, b bar, a swirling flow of carrier gas in the amount of 15–20 l (respectively, 90–120 l at normal pressure) with a given vortex motion is applied this stream together with non-loaded material flows of gas flows through the hollow volume. In this case, the non-material-loaded gas streams twist in the same direction as the non-material-loaded carrier gas stream.
    The gas flows not loaded with material are twisted in such a way that the lifting angle corresponding to the twist of the helix is smaller than when the carrier gas flow is twisted.
    The twist angle of both gas streams is larger than the diameter of the hollow volume of the billet is large. This angle can be 30-60 for diameters of 10-35 cm. After the carrier gas flow loaded by the scale tool flows through the hollow volume , the supply of the gas flow not loaded with the material is stopped and the device is returned back with the help of the displacing unit 17. Thereafter, scale can be removed from the next pipe. blanks
    Depending on the type of material, the material of the hollow body or the application of the method, according to the use of the device, air or, in particular, an inert gas or a gas mixture may be used as the carrier gas and additional gas flow, and no additional gas is required. so they are the same. As a flowable material, depending on the application of the method and the device, semi-liquid, paste, molten material or material in the form of particles, such as granulated powder, short fibers or chips, liquid or a mixture of such materials, may be used.
    The carrier gas stream leaving the hollow volume and the additional gas stream, as well as the remainder of the material to maintain the flow in the hollow volume, can be sucked off, and the remainder of the material, if it consists of fine particles, can be separated in the separator for further use.
    权利要求:
    Claims (10)
    [1]
    1. A method for applying a flowable material to the inner surface of a hollow body having at least approximately a cylindrical hollow space, with a load loaded with material and a swirling flow of carrier gas, is fed through the cavity with
    The end of the hollow body is different to another one, in order to ensure uniform deposition of the material, before the supply and during the supply of the carrier gas flow loaded into the cavity into the hollow space, several non-material flows of the gas flow onto the inner surface towards the end a hollow space that is twisted in the same direction as the carrier gas flow loaded by the material.
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    [2]
    2. A method according to claim 1, characterized in that the gas streams not loaded with material are twisted so that the pick-off angle corresponding to the twist of the helix is smaller than when the carrier gas flow is twisted.
    [3]
    3. Method pop. 1 and 2, characterized in that the non-material-laden gas streams are directed into the hollow volume in places evenly distributed around the circumference of the hollow volume to form several helical streams passing through the hollow space.
    [4]
    4. A device for applying a fluid material to the inner surface of a hollow body having a through at least approximately cylindrical hollow space containing a passage member for a material-charged flow of a carrier gas flow in the form of a diffuser twisting the carrier gas flow loaded by the material, characterized, in order to ensure uniform material deposition, the means for twisting the carrier gas flow loaded by the material The bodies are made in the form of guide vanes placed in the cavity of the diffuser with inclination of its guides; blades for imparting additional load to the loaded gas flow of the carrier gas and the material not loaded by the material, with a similar direction of rotation.
    [5]
    5. The device according to claim 4, characterized in that the diffuser, with its inlet part, is installed at a distance from the output end of the supply line of the carrier gas flow loaded with the material.
    [6]
    6. The device according to claims 4 and 5, which is characterized by the fact that the guide vanes of the twist means are bent in cross-section in the form of a groove with the radius of curvature increasing in the direction of flow with the concave side directed to the rotating flow, while the guide vanes in the longitudinal direction to the exit of the diffuser are bent and have a slope increasing to the axis of the diffuser.
    [7]
    7. The device according to paragraphs. 4-6, characterized in that the guide vanes are made with protruding beyond the exit edge of the diffuser of the passage body section
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    tapering in the direction of flow - and forming centering means for centering the passage body relative to the hollow space of the workpiece.
    [8]
    8. Device on PP. 4-7, characterized in that it is provided with a hollow cavity open at both ends, conically expanding in the direction of the flow, a displacer body in the form of a diffuser cone.
    [9]
    9. A device according to claims 4-8, characterized in that the diffuser has a double-walled body for a coolant or heat carrier.
    [10]
    10. A device according to claims 4-9, characterized in that the nozzles are made in the form of Lawal nozzles.
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    同族专利:
    公开号 | 公开日
    ES2015918B3|1990-09-16|
    MX170547B|1993-08-31|
    JPH0771689B2|1995-08-02|
    EP0250881B1|1990-05-09|
    US4790263A|1988-12-13|
    DE3762632D1|1990-06-13|
    CH668717A5|1989-01-31|
    EP0250881A1|1988-01-07|
    JPS6313614A|1988-01-20|
    CA1261684A|1989-09-26|
    引用文献:
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    US998762A|1911-05-19|1911-07-25|Cement Appliances Company|Apparatus for combining comminuted solids and liquid.|
    US4090666A|1976-05-19|1978-05-23|Coors Container Company|Gun for tribo charging powder|
    US4055025A|1976-11-22|1977-10-25|Union Carbide Corporation|Apparatus for improved cleaning of pipeline inlets|
    GB2123917B|1982-04-30|1986-02-12|Hakko Co|Lining underground pipes|
    US4452169A|1982-09-24|1984-06-05|Shinich Matsuda|Reviving apparatus for fluid passages|
    CH655516B|1983-08-17|1986-04-30|
    DE3562100D1|1984-07-23|1988-05-11|Lonza Ag|Method and apparatus for pickling work pieces for making tubes|
    US4668534A|1986-01-21|1987-05-26|Ben E. Meyers|Method and apparatus for applying fusion bonded powder coatings to the internal diameter of tubular goods|CH674164A5|1987-09-29|1990-05-15|Lonza Ag|
    CH674096A5|1988-01-19|1990-04-30|Lonza Ag|
    CH674477A5|1988-03-30|1990-06-15|Lonza Ag|
    US5099667A|1989-06-16|1992-03-31|Lonza Ltd.|System for suspending and applying solid lubricants to tools or work pieces|
    DE59102889D1|1990-03-26|1994-10-20|Lonza Ag|Method and device for spraying a lubricant suspension at intervals.|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    CH2682/86A|CH668717A5|1986-07-03|1986-07-03|METHOD FOR APPLYING A FLOWABLE SUBSTANCE TO THE INNER SURFACE OF A HOLLOW BODY AND DEVICE FOR CARRYING OUT THE METHOD.|
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