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1. 发明申请

WO1981001965A1 FIBER-REJECTING CORONA DISCHARGE ELECTRODE 审中-公开
标题翻译：光纤放电电晕放电电极
公开(公告)号：WO1981001965A1
公开(公告)日：1981-07-23
申请号：PCT/US1980001736
申请日：1980-12-22
申请人： ENVIROTECH CORP
发明人： ENVIROTECH CORP , TEAGUE R
IPC分类号： B03C03/12
CPC分类号： B03C3/12 , B03C3/41 , B03C2201/10
摘要： In a system for filtering fibers and particulates from a gas stream, a fiber separator (10) is disposed to remove fibers in gross quantity from the gas stream. A corona charging apparatus (20) is disposed downstream of the fiber separator (10) to impart electric charge to particulates and to fibers that escape removal from the gas stream by the fiber separator (10). An electrostatic filter medium (30), which may advantageously be mounted on the cylindrical wall of a drum filter, is disposed downstream of the corona charging apparatus (20) to remove electrically charged particulates and fibers from the gas stream. The corona charging apparatus (20) comprises at least one fiber-rejecting corona discharge electrode (21 or 25). The fiber-rejecting electrode (21) comprises a shielding portion (22) facing upstream and a corona discharge portion (23) facing downstream in the gas stream. The radius of curvature of the shielding portion (22) is greater than the radius of curvature of the corona discharge portion (23) in a plane parallel to the gas stream so that the corona discharge occurs in a region that is shielded from fibers carried by the gas stream.

2. 发明申请

WO1980000460A1 TWIN BELT VACUUM WASHER 审中-公开
标题翻译：双带真空洗衣机
公开(公告)号：WO1980000460A1
公开(公告)日：1980-03-20
申请号：PCT/US1979000577
申请日：1979-08-03
申请人： ENVIROTECH CORP
发明人： ENVIROTECH CORP , DAVIS S
IPC分类号： D06B05/04
CPC分类号： D21C9/06 , D06B3/02 , D06B5/04
摘要： A machine and process for washing paper stock pulp and other vacuum-filterable materials includes a wash drum (10) mounted in a tank (30). Two endless filter belts (50 and 52) are trained to pass around the wash drum (10) and through wash liquid contained in the tank. A mat of pulp is formed between the two endless filter belts (50 and 52) and carried on the wash drum (10) and through the tank (30) for washing therein. Wash liquor is pulled by vacuum through the pulp mat as it travels under the drum (10) thereby washing the pulp mat. After the pulp has been washed it is removed from between the two belts (50 and 52).

3. 发明申请

WO1981000269A1 QUICK-COUPLING LOCKING MECHANISM 审中-公开
标题翻译：快速连接机构
公开(公告)号：WO1981000269A1
公开(公告)日：1981-02-05
申请号：PCT/US1980000957
申请日：1980-07-22
申请人： ENVIROTECH CORP
发明人： ENVIROTECH CORP , CLARK J
IPC分类号： E02F03/81
CPC分类号： E02F3/3618 , E02F3/3663 , Y10T74/20588
摘要： A quick-coupling locking mechanism is provided comprising a C-shaped attachment means (2) which is secured to a service module (C) of any type and a toggle linkage assembly which is secured to a service vehicle (B). The C-shaped attachment means (2) is formed to define a lifting hook (3) at its top and a holding hook (4) at its bottom. The linkage assembly includes a horizontal lifting bar (5) for engagement with the lifting hook (3) and a horizontal holding bar (6) for engagement with the holding hook (4). The linkage assembly is selectively operable to move the lifting bar (5) into secure engagement with the lifting hook (3) to raise the service module (C) such that the holding hook (4) is brought into engagement with the holding bar (6). The linkage assembly further includes separating means (21) responsive to the movement of the assembly to force the lifting bar (5) away from the holding bar (6) to lock the lifting bar (5) and the holding bar (6) into secure engagement with the attachment means (2).

4. 发明申请

WO1980002148A1 DRY COKE QUENCHING AND POLLUTION CONTROL 审中-公开
标题翻译：干鳕鱼和污染控制
公开(公告)号：WO1980002148A1
公开(公告)日：1980-10-16
申请号：PCT/US1980000346
申请日：1980-03-18
申请人： ENVIROTECH CORP
发明人： ENVIROTECH CORP , BELDING J
IPC分类号： C10B39/02
CPC分类号： C10B33/003 , C10B39/02 , C10B39/14
摘要： The object of the invention is to provide a system and method for dry quenching coke while simultaneously substantially eliminating pollutants emitted during coke pushing and quenching operations. The method includes pushing the hot coke from a coke oven (7) into a hooded, mobile coke quench car (2), drawing the pollutants, emitted during the push, downwardly through the hot coke by a jet draft inducer (34) to oxidize the pollutants and produce an inert combustion gas. The gas is further drawn through lines (32 and 33) from the bottom portion of the quench car after cooling by heat exchanger (42), the recovered heat being used for supply of hot water to line (40) for use in the jet nozzle, the nozzle also acting o clean the cooled inert gas. The cooled, cleaned inert gas is returned to the hood (12) through a line (48) for further passage through the hot coke.
摘要翻译：本发明的目的是提供一种用于干熄焦焦炭的系统和方法，同时基本上消除了焦炭推压和淬火操作期间排放的污染物。该方法包括将焦炭从焦炉（7）推入连帽的移动式焦炭淬火车（2）中，将喷射出的污染物通过喷射通风机（34）向下通过热焦炭，将其氧化污染物并产生惰性燃烧气体。在通过热交换器（42）冷却之后，气体通过管线（32和33）从冷却汽车的底部进一步拉出，回收的热量用于将热水供应到用于喷嘴的管线（40），喷嘴也起到清洁冷却的惰性气体的作用。冷却的，清洁的惰性气体通过管线（48）返回到罩（12），以进一步通过热焦炭。

5. 发明申请

WO1981001111A1 POPPET VALVE FOR BAGHOUSE OUTLET PLENUM 审中-公开
标题翻译：袋式灭火器阀门
公开(公告)号：WO1981001111A1
公开(公告)日：1981-04-30
申请号：PCT/US1980001263
申请日：1980-09-22
申请人： ENVIROTECH CORP
发明人： ENVIROTECH CORP , MCANDREW M
IPC分类号： B01D46/04
CPC分类号： B01D46/0067 , B01D46/04 , B01D46/4272
摘要： Following reverse gas flow cleaning of bag filters in a baghouse (17), controlled re-inflation of the bag filters is provided by a poppet valve (10) positioned in an opening (15) through which dust-free gas can pass from the baghouse (17) into a clean gas plenum (20). The poppet valve (10) comprises a valve plate (30) affixed to a valve stem (31) that is mounted for translational motion in the opening (15) so that the valve plate (30) can cover the opening (15) when the opening (15) is to be closed and can be moved away from the opening (15) when the opening (15) is to be unclosed. A cylindrical skirt (32) affixed to the valve stem (31) provides restricted gas flow through the opening (15) for a sufficient time to enable gradual re-inflation of the bag filters as the valve (10) is being opened following reverse gas flow cleaning of the bag filters. The cylindrical skirt (32) has a longitudinally extending orifice portion such as at least one longitudinally extending slot (50) to enable the rate of dust-free gas flow through the opening (15) to be increased gradually as the valve (10) is being opened.
摘要翻译：在袋式垃圾箱（17）中的袋式过滤器的反向气流清洗之后，通过位于开口（15）中的提升阀（10）提供袋式过滤器的可控重新充气，无尘气体可以通过该提升阀从袋式过滤器（17）进入清洁气体充气室（20）。提升阀（10）包括固定在阀杆（31）上的阀板（30），该阀板安装成用于在开口（15）中的平移运动，使得当阀板（30）可以覆盖开口当开口（15）不被关闭时，开口（15）将被封闭并能够从开口（15）移开。固定到阀杆（31）上的圆柱形裙部（32）提供限制的气体流动通过开口（15）足够的时间，以使阀门（10）在反向气体之后打开时逐渐重新膨胀袋式过滤器流量清洗袋式过滤器。圆筒形裙部（32）具有纵向延伸的孔口部分，例如至少一个纵向延伸的狭槽（50），以使得能够随着阀门（10）是逐渐增加通过开口（15）的无尘气体流量的速率逐渐增加被打开

6. 发明申请

WO1980000461A1 TWIN BELT VACUUM WASHER 审中-公开
标题翻译：双带真空洗衣机
公开(公告)号：WO1980000461A1
公开(公告)日：1980-03-20
申请号：PCT/US1979000638
申请日：1979-08-16
申请人： ENVIROTECH CORP
发明人： ENVIROTECH CORP , DAVIS S
IPC分类号： D06B05/04
CPC分类号： D21C9/06 , D06B3/02 , D06B5/04
摘要： A machine and process for washing paper stock pulp and other vacuum-filterable materials includes a wash drum (10) mounted in a tank (30). Two endless filter belts (50 and 52) are trained to pass around the wash drum (10) and through wash liquid contained in the tank. A mat of pulp is formed between the two endless filter belts (50 and 52) and carried on the wash drum (10) and through the tank (30) for washing therein. Wash liquor is pulled by vacuum through the pulp mat as it travels under the drum (10) thereby washing the pulp mat. After the pulp has been washed it is removed from between the two belts (50 and 52).
摘要翻译：用于清洗纸浆和其它真空可过滤材料的机器和方法包括安装在罐（30）中的清洗滚筒（10）。训练两个无尽的过滤带（50和52）以绕过洗涤滚筒（10）并通过容纳在罐中的洗涤液体。在两个环形过滤带（50和52）之间形成纸浆垫并承载在洗涤桶（10）上并通过罐（30）以在其中洗涤。当纸浆垫在滚筒（10）下行进时，洗涤液被真空拉动，从而洗涤纸浆垫。在纸浆被清洗之后，它从两个带（50和52）之间移除。

7. 发明申请

WO1982002686A1 LIQUID-SOLID SEPARATION UTILIZING PRESSURE ROLLS COVERED WITH ELASTOMERIC LAYERS 审中-公开
标题翻译：利用弹性体层覆盖压力辊的液体固体分离
公开(公告)号：WO1982002686A1
公开(公告)日：1982-08-19
申请号：PCT/US1982000167
申请日：1982-02-10
申请人： ENVIROTECH CORP
发明人： ENVIROTECH CORP , DAVIS STEVEN S
IPC分类号： B30B09/24
CPC分类号： B30B9/246 , B30B9/241
摘要： Procede et appareils pour exprimer la phase liquide d'un melange mouille tel qu'un melange semblable a de l'argile comprennent un rouleau primaire (12, 104) ayant une pluralite de rouleaux de pression plus petits (13, 112-118) pousses contre sa surface a intervalles espaces sur la circonference et a des pressions croissantes. Le rouleau primaire et au moins le rouleau amont (112) des rouleaux de pression ont un revetement externe epais en un materiau elastomere sensiblement deformable. Une paire de bandes filtrantes opposees (22, 23 ou 142, 144) sont entrainees autour du rouleau primaire et des moyens sont prevus pour alimenter le melange mouille entre les bandes pour transporter le melange successivement au travers des pincements entre le rouleau primaire et les rouleaux de pression. Le melange est initialement soumis dans le premier pincement a un taux d'augmentation de pression relativement progressif et dans les pincements ulterieurs le melange est soumis a des taux d'augmentation de pression progressivement plus eleves adaptes au comportement different de l'ecoulement du melange du a la teneur croissante en solides du melange. Dans un mode de realisation, tous les rouleaux de pression (112-118) sont recouverts de couches elastomeres de meme epaisseur, de meme durete, et le premier rouleau (112) est sollicite avec une pression predeterminee et relativement faible pour soumettre au depart le melange mouille a cette augmentation relativement progressive de pression. Dans un autre mode de realisation destine a des melanges plus mouilles, les rouleaux (112'-118') sont recouverts de couches de meme epaisseur avec une durete croissante dans le sens de deplacement des bandes. Des bandes et des joints de bordure specialement fabriques sont decrits.

8. 发明申请

WO1981002691A1 POWER CONTROLLER FOR ELECTROSTATIC PRECIPITATOR 审中-公开
标题翻译：静电抑制器功率控制器
公开(公告)号：WO1981002691A1
公开(公告)日：1981-10-01
申请号：PCT/US1981000264
申请日：1981-03-03
申请人： ENVIROTECH CORP
发明人： ENVIROTECH CORP , REESE R , WIEBER K , SHOLLY J
IPC分类号： B03C03/68
CPC分类号： B03C3/68
摘要： In a system for controlling electric power supplied to corona-generating electrodes in an electrostatic precipitator (10), an opacity-sensitive transducer (20) produces an output signal proportional to the opacity of the flue gas exiting from the precipitator (10). The signal from the transducer (20) is compared in comparators (304 and 305) with pre-set upper and lower limits defining a permissible opacity range for the flue gas. When the signal from the transducer (20) exceeds the pre-set upper limit or falls below the pre-set lower limit, automatic voltage controllers (40) are activated to control the power supplied to the corona-generating electrodes in order to restore the flue gas opacity to the permissible opacity range.

9. 发明申请

WO1980001921A1 COKE OVEN FUMES CONTROL SYSTEM 审中-公开
标题翻译：焦炉烤炉控制系统
公开(公告)号：WO1980001921A1
公开(公告)日：1980-09-18
申请号：PCT/US1980000238
申请日：1980-02-19
申请人： ENVIROTECH CORP
发明人： ENVIROTECH CORP , NIJHAWAN P , DUCKWORTH J
IPC分类号： C10B27/00
CPC分类号： C10B33/003 , B08B15/02
摘要： A contaminant capture system for a coke oven pushing operation is provided. It includes a suction means (56), a duct (50) and coupling means (54) therebetween. The duct (50) is closed by a flexible web (60). A car (64, 66) is moved to a selected position along the duct (50) to raise the web (60) communicating a first (80) and second (20) mobile hood with the interior of the duct (50). An inspection door (152) on the car (64, 66) provides access to its interior. The hood (80) is disposed over conveyor (44). First and second track means (62, 72) supports the hood (80) in a cantilever manner. The hood (20) withdraws contaminants evolved as coke is pushed from an oven (12) to the conveyor (44). It includes means (370) forming an air curtain and for directing air toward the coke oven door. Valve (128) selectively controls evacuation of the hood (20) through second duct (92). A striker means (420, 422) breaks pushed coke into sized lumps. To accomodate thermal expansion, each of plural sections (48) in the duct (50) has one free end engaging an adjacent duct section (48).

10. 发明申请

WO1979000765A1 ROTARY DRUM FILTER AND METHOD OF OPERATION FOR MEDIUM CLEANING 审中-公开
标题翻译：旋转式过滤器和中等清洁操作方法
公开(公告)号：WO1979000765A1
公开(公告)日：1979-10-04
申请号：PCT/US1979000166
申请日：1979-03-13
申请人： ENVIROTECH CORP
发明人： ENVIROTECH CORP , WEGENER W
IPC分类号： B01D33/08
CPC分类号： B01D33/067 , B01D33/09
摘要： A rotary vacuum filter wherein each filtration sector (11) of the filter is backwashed with filtrate and/or separately supplied gas or wash liquid while the sector is submerged in the feed slurry in the tank. As each sector starts to resurbmerge in the tank, vacuum is applied so that the sector and associated hydraulic system is quickly and completely filled with filtrate and a thin cake or film f solids forms on the filter medium (13) whereupon with the sector still submerged, vacuum is cut off and a positive pressure is applied by either or both pressured gas or liquid supplied through the valve (14) thus forcing filtrate back through the cloth to effect washing thereof. After the wash, vacuum is reapplied for cake formation. The drum (3) includes an internal manifold (17) under each filtration sector. The manifolds are mounted on the interior wall of the drum and are secured directly to the drum wall as structural members. Additionally, each manifold serves as a reservoir for storage of wash liquor.

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