• 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:
    Dust-like or dust containing solids are passed into a pressurized system via a lock chamber apparatus wherein a porous filter is provided separating the lock chamber into an upper space and into a lower space. Normally a pressurized gas is passed into the lower space and it is discharged from the upper space during the pressure release phase after passing through the filter. When a predetermined differential pressure is exceeded between the upper and the lower space of the lock chamber because of a clogging up of the filter the filter is cleansed by passing the pressure gas partially or totally into the upper space of the lock chamber so that it passes through that filter in the direction reverse to that during the pressure release phase.
    公开号:SU929518A1
    申请号:SU787770253
    申请日:1978-07-27
    公开日:1982-05-23
    发明作者:Петер Гелер；Хорст Кречмер；Ханс-Йоахим Швейгел
    申请人:Бреннштофф-Институт Фрейберг (Иностранное Предприятие)；
    IPC主号:
    专利说明:

    (54) DEVICE FOR THE TRANSFER OF VACUUM-CONTAINING AND DUST-FREE MATERIALS INTO A HIGHER SYSTEM
    one
    The invention relates to a tank sluice for bypassing a dust-containing or pulverized material into a higher pressure system, for example, during gasification of coal under higher pressure.
    Solid materials are transferred to a higher pressure system in many cases by tank sluices, and the gateways filled with solid material at atmospheric pressure and subsequently brought to a pressure following the gaseous medium, followed by the system, are discharged into another reservoir of the pneumatic conveying system and after separation from the pneumatic conveying system, the system undergoes a decrease in pressure.
    Since dust remains inevitably in the tank sluice, lower pressure gas is also contaminated, so that lower pressure gas dedusting becomes necessary so as not to cause pollution of the atmosphere by dust emissions and technological damage.
    The aim of the invention is to eliminate a separate gas dedusting unit under pressure to reduce pressure.
    neither during the transition from the reservoir gland, and the dust present in the gas of lower pressure to be kept in the reservoir sluice by means of a suitable filtering structure installed in the tank sluice so that the consumption of facilities for the installations, the danger of technological damage and material loss are reduced.
    权利要求:
    Claims (1)
    [1]
    The goal is achieved by the fact that the dedusting of gas is carried out directly in the tank area. According to the invention, in the tank sluice there is a filtering wall of porous material separating the tank sluice into the lower and upper cavities, the lower cavity having a branch pipe for filling, a branch pipe for loading dust-containing or dusty material, and a supply of higher pressure gas. Branch pipes that can be used to decrease and increase the pressure 20 can move away from the upper cavity. The pressure increase in the tank sluice in the normal case occurs through a supply in which a valve is installed, which performs pressure reduction and shut-off. The pressure reduction occurs through the pressure reduction line, in which there is a valve, which instigates pressure reduction and shut-off. Between the control valve and the shut-off valve, there is a drain that is connected to the upper cavity. When the pressure in the airlock decreases, the gas of lower pressure forcibly passes through the filter surface, lowering its pressure in the valve. Despite the fact that the pressure in the gateway decreases from the system pressure to the ambient pressure, the average pressure is well above atmospheric, so that, due to the insignificant volumetric flow, much smaller filter surfaces are required. A large part of the dust separated by the filter is fed back into the lower cavity of the airlock. But contamination of the filter with fine-grained dust is not excluded. Therefore, the pressure difference between the upper and lower cavities of the tank sluice caused by the installation of the filter, which appears due to filter pollution, is determined by a differential manometer. If the specified differential pressure limit is exceeded, the shut-off valve in the pressure boosting line is closed and the shut-off valve in the outlet is closed or the shut-off valve is opened in the pressure increase and outlet lines so that the next pressure increase process will completely or partially clean the inlet m from above gas flow m. A differential pressure gauge can be connected in a known manner with a control and actuating device so that when a predetermined differential pressure is exceeded, the stop valve at the outlet opens independently and the stop valve at the pressure line can be optionally opened or closed, and the named valves regardless of the further change in the difference The pressures remain for a period of time at a time for a one-time full cycle time, in an automatically set position. The advantages offered by the device are that no additional equipment is required, technological dust does not arise and the environment is contaminated and the dust remains in the system for further use. The drawing schematically shows the proposed device. The filling of the slot of tank 1 takes place through pipe 4, loading through pipe 5. Gas of higher pressure is supplied through regulating valve 13 and shut-off valve 11. Pressure is reduced through valve 14, reducing pressure and locking, and the flow passes through filter 3 When a filter 3 is contaminated, a pressure loss increases and a pressure difference occurs between the cavities before and after filter 3. When the limit value is reached, depending on the filter material, a differential pressure gauge signal 2, by the control and actuating device 15, the shut-off valve 12 is turned on in the "Opening and shut-off valve 11" position on the "Closing or shut-off valves 12 and 11 are turned on" Opening so that during the next pressure increase process, the higher pressure gas is completely or partially on top passes through filter 3 to gateway 1. This cleans the filter. Since the pressure difference during the pressure reduction process is subject to change, the shut-off valves II 12, regardless of the further change in the pressure difference, by the corresponding execution of the control and actuating device 15 with known means (for example, equipping the device 15 with the time relay) a certain period of time in a one-time fixed position. In order to ensure a sufficient cleaning effect, the time period mentioned above constitutes at least a one-time period of the full cycle of the gateway operation. Apparatus of the Invention A device for bypassing dust-containing and pulverized materials into a higher pressure system consisting of known elements of the device, such as a tank sluice, a filter, a differential pressure gauge, and a differential pressure regulator, a shut-off valve and a control valve, characterized in that (The tank luze is located in such a way that the filter separates the tank gateway into the upper and lower cavities, so that the control valve 13 and the gate valve 11 are connected in the pressure increase line, and and lowering the pressure - valve 14, which performs pressure reduction and shut-off, drain 10 with a shut-off valve 12, from the control valve 13 to the shut-off valve 11 and connected to the upper cavity 6, and to measure the pressure difference in the tank sluice the installed differential pressure gauge is connected through a control and actuator; device 15 with shut-off valves 11 and 14. It was recognized as an invention according to the results of an examination carried out by the Office for the Invention of the German Democratic Republic.
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    类似技术:
    公开号 | 公开日 | 专利标题
    SU929518A1|1982-05-23|Device for passing dust-containing and pulverulent materials into a higher-pressure system
    US4425139A|1984-01-10|Apparatus for sluicing residues from the pressure system of a pressure gasification tank
    US4738687A|1988-04-19|Process for the removal of residue particles from a pressurized gasification reactor
    US4592679A|1986-06-03|Pneumatic conveying process and apparatus
    US4067622A|1978-01-10|Method and apparatus for the pneumatic conveying of bulk material
    NL7909031A|1980-06-24|DEVICE FOR PNEUMATIC OPERATION OF A HOLDER SCALE.
    US2576656A|1951-11-27|Apparatus for cleaning hose filters
    CN101258224B|2013-04-24|Method and device for cleaning the door of a coke oven
    GB1342793A|1974-01-03|Filter apparatus
    US3575055A|1971-04-13|Apparatus for automatically sampling solids
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    US2606672A|1952-08-12|Blast furnace
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    ES8401327A1|1983-12-16|Apparatus for decontaminating compressed gas.
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    EP0211393A1|1987-02-25|Valve system for particulate solid flow control
    US3633747A|1972-01-11|Filter press method and apparatus
    JPH03278809A|1991-12-10|Device for removal of foreign matter for pipe
    US2971534A|1961-02-14|Gastight shutoff device for the passage of dust-containing substances
    WO1994023239A1|1994-10-13|Automatic fluid trap and draining unit
    同族专利:
    公开号 | 公开日
    AU3864578A|1980-02-07|
    PL111220B1|1980-08-30|
    IN149173B|1981-09-26|
    HU179121B|1982-08-28|
    GB2002463B|1982-01-20|
    CS206656B1|1981-06-30|
    YU190578A|1982-08-31|
    FR2399864A1|1979-03-09|
    AU525906B2|1982-12-09|
    JPS5743490B2|1982-09-14|
    GB2002463A|1979-02-21|
    DE2832128C2|1987-04-09|
    DD141240A3|1980-04-23|
    PL208926A1|1979-05-21|
    FR2399864B1|1983-09-09|
    DE2832128A1|1979-02-22|
    US4247227A|1981-01-27|
    YU39058B|1984-02-29|
    JPS55120697A|1980-09-17|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    NL250037A|1959-04-01|1900-01-01|
    US3069205A|1959-12-03|1962-12-18|Systems Engineering & Mfg Co I|Conveying of solids|
    FR1412772A|1964-10-27|1965-10-01|Method and device for cleaning a filter, in particular for a pneumatic conveyor of powdery products, granules or the like, and a conveyor equipped with said device or the like|
    US3297370A|1964-12-31|1967-01-10|Vac U Max|Filter cleaner mechanism for pneumatic material conveying system|
    US3386773A|1966-05-03|1968-06-04|Brown & Williamson Tobacco|Pneumatic feed system for cigarettemaking machines|
    US3620575A|1969-09-05|1971-11-16|Keystone Valve Corp|Particulate-conveying apparatus|
    DE2136328B2|1971-07-21|1981-05-07|Azo-Maschinenfabrik Adolf Zimmermann Gmbh, 6960 Osterburken|Pneumatically feeding multiple extruders with granulate - system meters supply to hoppers by cutting off air when filled|
    DE2328496A1|1973-06-05|1975-01-02|Sietam Foerdertech|METHOD AND DEVICE FOR ACCELERATED DOSING OF SCHUETTGUETERS INTO PNEUMATIC CONVEYOR LINES|
    DE2535294A1|1975-08-07|1977-02-17|Lesk Margarete|Cleaner for suction dust filter in closed weighing vessel - allowing discharge of weighed material with min. residue|
    DE2540672C3|1975-09-12|1978-05-24|Waeschle Maschinenfabrik Gmbh, 7980 Ravensburg|Separator intended for pneumatic suction conveyor systems, especially for feeding plastics processing machines|
    DD141240A3|1977-08-09|1980-04-23|Peter Goehler|HOSPITAL PIPE FOR THE TRANSFER OF DUST-CONTAINING AND DUST-SOUND GUETERS IN A SYSTEM OF HIGHER PRESSURE|DD141240A3|1977-08-09|1980-04-23|Peter Goehler|HOSPITAL PIPE FOR THE TRANSFER OF DUST-CONTAINING AND DUST-SOUND GUETERS IN A SYSTEM OF HIGHER PRESSURE|
    FR2521534A1|1982-02-13|1983-08-19|Zimmermann Azo Maschf|RESERVOIR FOR BULK COAL|
    GB8302835D0|1983-02-02|1983-03-09|Smith Kline French Lab|Powder recovery apparatus|
    US4445919A|1983-03-14|1984-05-01|Thermo Electron Corporation|In situ rapid wash apparatus and method|
    DE3412930C2|1984-04-06|1990-08-09|L. & C. Steinmueller Gmbh, 5270 Gummersbach, De|
    JPH0780567B2|1986-03-25|1995-08-30|秀雄 長坂|Automatic powder feeder|
    US5477953A|1992-03-16|1995-12-26|Environmental Products Corporation|Filter and filter cleaning system for a reverse vending machine|
    US5567090A|1993-04-22|1996-10-22|Foster Wheeler Energia Oy|Method and apparatus for separating solids from gas in a high pressure solids-gas stream utilizing a packed bed of the solids|
    DE19512311A1|1995-04-01|1996-10-02|Buehler Ag|Conveying solids from space at lower pressure to space at higher pressure|
    US5667158A|1995-05-23|1997-09-16|Glaxo Wellcome Inc.|Automated blend reclaim system for pharmaceutical tablet compression machine|
    EP1022633B1|1999-01-22|2004-05-26|Idr Holding S.A.|A valve for regulating pressurised gas|
    US8066789B2|2009-04-20|2011-11-29|Southern Company|Continuous fine ash depressurization system|
    CN102180358B|2011-04-18|2012-10-03|宝钢工程技术集团有限公司|Blowing feeding system and method in mechanical stirring desulfurization|
    CN104023816B|2012-01-19|2016-09-07|陶氏环球技术有限责任公司|For goods and the method for vessel delivery will be processed|
    CN104276392B|2014-09-09|2017-03-08|陈素素|The monitoring system that anti-sand blocks|
    EP3406547B1|2017-05-23|2020-08-05|Piab Ab|Filter monitoring in pneumatic transport systems|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DD77200492A|DD141240A3|1977-08-09|1977-08-09|HOSPITAL PIPE FOR THE TRANSFER OF DUST-CONTAINING AND DUST-SOUND GUETERS IN A SYSTEM OF HIGHER PRESSURE|
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