CN101690954A - Oil filter of nonferrous metal foil rolling industry - Google Patents

Oil filter of nonferrous metal foil rolling industry Download PDF

Info

Publication number
CN101690954A
CN101690954A CN200910066134A CN200910066134A CN101690954A CN 101690954 A CN101690954 A CN 101690954A CN 200910066134 A CN200910066134 A CN 200910066134A CN 200910066134 A CN200910066134 A CN 200910066134A CN 101690954 A CN101690954 A CN 101690954A
Authority
CN
China
Prior art keywords
oil
filter
communicated
pipeline
fine filtering
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN200910066134A
Other languages
Chinese (zh)
Inventor
焦保安
吴继超
王海民
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN200910066134A priority Critical patent/CN101690954A/en
Publication of CN101690954A publication Critical patent/CN101690954A/en
Pending legal-status Critical Current

Links

Images

Landscapes

  • Filtration Of Liquid (AREA)

Abstract

The invention relates to an oil filter of nonferrous metal foil rolling industry, comprising a sump oil pool or a sump oil tank, an oil cleaning pool or an oil cleaning tank, and an oil filtering system, wherein the oil filtering system comprises a coarse filtering oil-water separation device, a fine filtering destaining device, a buffering tank and a vacuum pump; the oil outlet of the coarse filtering oil-water separation device is communicated with the fine filtering destaining device through a pipeline, the oil inlet of the coarse filtering oil-water separation device is communicated with the sump oil pool or the sump oil tank by the pipeline or a piping pump, the oil outlet of the fine filtering destaining device is communicated with the upper part of the buffering tank by a pipeline, the oil cleaning pool or the oil cleaning tank is communicated with the lower part of the buffering tank, and the vacuum pump is communicated with the top part of the buffering tank by a pipeline. The oil filter of the invention can realize on-line cycle operation, does not need to add filter aid duty to duty, and does not need to change filter cloth day to day, thereby not only saving a great amount of funding, but also avoiding economic loss caused by machine halt. The oil filter has no effluent discharge, high automation degree, easy control, simple structure and convenient operation, reduces labor intensity for workers, and is beneficial to environment protection and promotion and implementation.

Description

Oil filter of nonferrous metal foil rolling industry
One, technical field:
The present invention relates to a kind of ROLLING OIL cleaning system of non-ferrous metal manufacture field, particularly relate to a kind of oil filter of nonferrous metal foil rolling industry.
Two, background technology:
At present, the most plate and frame filter press that adopt of non-ferrous metal board foil rolling industry cycle of treatment ROLLING OIL filter, to guarantee the recycling quality of oil product.This kind equipment collection passes in and out oil automatically and is filtered into one, on-line operation, but must add filter aid (diatomite, atlapulgite), and need every class to add, change everyday.Filter cloth and filter soil are frequently slagged tap, and particularly filter aid has been taken away a large amount of ROLLING OIL, cause waste largely.For example calculate, adopt prior art need consume about 1 ton of diatomite every day, carry not about 1 ton of separating oil in the diatomite, filter the about 50m of filter cloth that adopts with the production scale of 5 milling trains 2, diatomaceous market price is 2800 yuan/ton, wastes about 8000 yuan of oily value per ton, the filtration cost that adds up to every day is above ten thousand yuan.Existing filtering technique is not only wasted resource, increases cost, and causes environmental pollution, also will spend a large amount of manpowers and handle filter back rubbish.The oil strain technology of existing non-ferrous metal foil rolling industry and oil-filtering apparatus press for significantly and improve.
Three, summary of the invention:
The present invention overcomes the deficiency that prior art exists, and designs and produce a kind of oil filter of nonferrous metal foil rolling industry.
Technical scheme:
A kind of oil filter of nonferrous metal foil rolling industry, comprise contaminated-oil basin or slop tank, absolute oil pond or absolute oil jar, oil filtering system, oil filtering system contains coarse filtration oily-water seperating equipment and fine filtering decolouring device, surge tank and vavuum pump, thick worry oily-water seperating equipment oil-out is communicated with by pipeline and fine filtering decolouring device, thick worry oily-water seperating equipment oil-in is communicated with contaminated-oil basin or slop tank by pipeline and tubing pump, fine filtering decolouring device oil-out is communicated with surge tank top by pipeline, absolute oil pond or absolute oil jar are communicated with the surge tank bottom, and vavuum pump is communicated with the surge tank top by pipeline.
A dehydration impurity elimination filter core is installed in coarse filtration oily-water seperating equipment cavity at least, described dehydration impurity elimination filter core comprises at least two filter cylinders of installing with one heart with holes, each filter cylinder lower end sealing, the upper end is provided with oil-out and is sealed and installed with flowline, on each a filter cylinder with holes two side or a sidewall, respectively be set with one deck oil filter cloth that blocks water excessively, be filled with the oily material layers of hydrophilic mistake between the adjacent filter cylinder with holes.
In fine filtering decolouring device cavity, at least one look impurity elimination filter core of getting rid of is installed, described each decolouring impurity elimination filter core comprises at least three filter cylinders of installing with one heart with holes, each filter cylinder lower end sealing, the upper end is provided with oil-out and is sealed and installed with suction pipe, described each decolouring impurity elimination filter core has at least between one group of two adjacent filter cylinder with holes and is filled with the decolouring material layer, is filled with filter miscellaneous material layer between all the other adjacent filter cylinders with holes.
Described filter miscellaneous material is a graininess or fibrous, and filter miscellaneous material layer is two-layer when above, and oneself thing granularity of damming outside to inside is by diminishing greatly gradually.
Described decolouring material layer is the granular active carbon layer, perhaps is the fibrous activated carbon layer.
The housing lower end of described coarse filtration oily-water seperating equipment and fine filtering decolouring device is respectively equipped with the long-pending assorted funnel of long-pending oil, each funnel lower end is communicated with centrifuge or filter press by oil pipe and valve respectively, and centrifuge or filter press oil-out are communicated with contaminated-oil basin by sump oil backflow oil pipe.
Thick consider between oily-water seperating equipment and the fine filtering decolouring device on the pipeline, slightly consider between oily-water seperating equipment and contaminated-oil basin or the slop tank on the pipeline, fine filtering decolours between device and the surge tank on the pipeline, on the pipeline pipeline valve is installed all between absolute oil pond or absolute oil jar and the surge tank.Pipeline valve is installed on vacuum-pump line as required.Wherein each valve all can adopt control circuit to realize the automatic control and the operation of system.
In oil filtering system, also be provided with the backwash system, described backwash system comprises air compressor machine, the escape pipe of air compressor machine is communicated with the efferent duct of coarse filtration oily-water seperating equipment and fine filtering decolouring device respectively, and be respectively arranged with back flush valves, when backwash, open described back flush valves, close the output by-pass valve control on the efferent duct of coarse filtration oily-water seperating equipment and fine filtering decolouring device simultaneously, make air compressor machine work carry out backwash coarse filtration oily-water seperating equipment and/or fine filtering decolouring device inner filtration mechanism.
On the oil pipe between surge tank and the absolute oil pond, oil well pump is installed.
Beneficial effect of the present invention:
1, oil filter of the present invention can be implemented in the line periodic duty.Adopt solid filter cylinder, not only under saving the situation of multiple filter material, guarantee normal rolling outside, but also do not need every class to add filter aid (diatomite, carclazyte), do not need to change filter cloth everyday, removed that shutting down slagged tap everyday in three hours changes the worry that cloth brings.Not only save the fund input of long term purchase filter material, also can save because of filter aid and take away the economic loss that a large amount of ROLLING OIL cause, can also save three hours slag tap every day and change the cloth time, thereby avoided shutting down the economic loss that caused in three hours.
2, the present invention also avoids discharging a large amount of oil-containing solids refuses simultaneously, helps environmental protection.
3, filter by oil filter of the present invention, can also reclaim many aluminium, metal dust every year.
4, the filter cylinder of oil filter of the present invention can realize that the thorough cleaning and regeneration of regular dismounting is recycling.
5, oil filter of the present invention also has dehydration, decolouring, removal of impurities function, oil product filtering accuracy height, product quality height.
6, oil filter of the present invention, the automaticity height, control is simple in structure, easy to operate easily, reduces working strength of workers, is beneficial to very much promotion and implementation.
Four, description of drawings:
Fig. 1 is an oil filter of nonferrous metal foil rolling industry circulatory system schematic diagram of the present invention;
Fig. 2 is coarse filtration oily-water seperating equipment and fine filtering decolouring device cross-sectional view;
Fig. 3 is the C-C cross-sectional view of Fig. 2;
Fig. 4 is the assorted filter cartridge construction schematic diagram of installing in the fine filtering decolouring device of decolouring, filter;
Fig. 5 is a coarse filtration oily-water seperating equipment cross-sectional view;
Fig. 6 is the dehydration impurity elimination filter cartridge construction schematic diagram of installing in the coarse filtration oily-water seperating equipment;
Fig. 6-the 1st, the B portion structure for amplifying schematic diagram of Fig. 6;
Fig. 7 is two of coarse filtration oily-water seperating equipment and a fine filtering decolouring device cross-sectional view;
Fig. 8 is the D-D cross-sectional view of Fig. 7.
Numbering 1 is a surge tank among the figure, 2 is the coarse filtration oily-water seperating equipment, 3 are fine filtering decolouring device, 4 is vavuum pump, 5 is contaminated-oil basin, 6 is the absolute oil pond, 7 is air compressor machine, 8 is centrifuge or filter press, 9 is the absolute oil oil pick-up tube between fine filtering decolouring device and surge tank, 10 is the absolute oil flowline, 10a is a valve on the absolute oil flowline, 11 is the sump oil oil inlet pipe, 11a is a sump oil oil inlet pipe valve, 12 is the sump oil oil return pipe, 13 is air intake duct, 13a is the air intake duct valve, 14 is air pipe, and 15 is the air pipe of coarse filtration oily-water seperating equipment, and 15a is the air pipe of coarse filtration oily-water seperating equipment, 16 air pipes for fine filtering decolouring device, the air pipe valve of 16a fine filtering decolouring device, 17 are dehydration contaminated oil pipe (between connection and coarse filtration oily-water seperating equipment and the fine filtering decolouring device), 17a is dehydration contaminated oil pipe valve, 18 is coarse filtration oily-water seperating equipment impurity-discharging pipe, 18a is a coarse filtration oily-water seperating equipment impurity-discharging pipe valve, and 19 is fine filtering dewater unit impurity-discharging pipe, and 19a is a fine filtering decolouring device impurity-discharging pipe valve, 20 are dehydration impurity elimination filter core, 21 is the long-pending assorted funnel of long-pending oil of coarse filtration oily-water seperating equipment lower end, and 22 is (coarse filtration) filter cylinder with holes (can be stainless steel or cold rolling punched-plate), and 23 are oil strain dehydration filter layer of cloth, 24 for filling the dehydration material layer, 25 is filtering holes, and 26 are decolouring impurity elimination filter core, and 27 are the long-pending assorted funnel of the long-pending oil of fine filtering decolouring device, 28 is (thin worry) filter cylinder with holes, 29 are decolouring or filter diamicton, and 30 is suction pipe, and 31 is netted pipe, 32 is oil well pump, 33 is compression pump, and 34 are the exhaust pressure electromagnetic valve, and 35 is negative pressure chamber, 36 is the grease chamber, and 37 for supporting division board.
Five, the specific embodiment:
Embodiment one: referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 6-1, a kind of oil filter of nonferrous metal foil rolling industry, comprise contaminated-oil basin 5 and absolute oil pond 6 and oil filtering system, oil filtering system comprises that coarse filtration oily-water seperating equipment 2 and fine filtering decolouring device 3, surge tank 1 reach the vavuum pump 4 that is communicated with it, and the filtering process of oil filtering system is to discharge sump oil → contaminated-oil basin 5 → coarse filtration oily-water seperating equipment 2 → fine filtering decolouring device 3 → surge tank 1 → oil well pump 32 → absolute oil pond 6 → milling train from milling train.Wherein surge tank 1 is communicated with vavuum pump 4, is in negative pressure state in the surge tank 1 when guaranteeing work.
In coarse filtration oily-water seperating equipment 2, dewatering device is installed, sump oil after the dehydration is introduced in fine filtering decolouring device 3 cavitys by coarse filtration discharge pipe 17 and valve 17a, assorted, the mechanism of decolouring of filter is installed in fine filtering decolouring device 3 cavitys, the absolute oil of discharging from fine filtering decolouring device 3 is inhaled in the surge tank 1 by oil pipe 9 and valve 9a, and surge tank 1 delivery outlet is communicated with absolute oil pond 6 by oil pipe 10 and valve 10a.
A dehydration impurity elimination filter core 20 is installed in coarse filtration oily-water seperating equipment 2 cavitys at least, described dehydration impurity elimination filter core 20 comprises at least two filter cylinders of installing with one heart with holes 22, each filter cylinder lower end sealing, the upper end is provided with oil-out and is sealed and installed with flowline, on each filter cylinder with holes 22 two side, respectively be set with one deck oil filter cloth 23 that blocks water excessively, be filled with the oily material layers 24 of hydrophilic mistake between the adjacent filter cylinder with holes.
Many rows' decolouring impurity elimination filter core 26 is installed in fine filtering decolouring device 3 cavitys, and each impurity elimination filter core upper end suction pipe 30 that decolours gathers the back and is communicated with absolute oil oil pick-up tube 9.
Described decolouring impurity elimination filter core 26 comprises five filter cylinders of installing with one heart with holes 28, each filter cylinder lower end sealing, the upper end is provided with oil-out and is sealed and installed with suction pipe 30, be filled with the decolouring material layer between one group or two groups of two adjacent filter cylinders 28 with holes therein, between all the other adjacent filter cylinders with holes, be filled with filter miscellaneous material layer.
Described filter miscellaneous material is a graininess or fibrous, and filter miscellaneous material layer is two-layer when above, and oneself thing granularity of damming outside to inside is by diminishing greatly gradually.
Described decolouring material layer is the granular active carbon layer, perhaps is the fibrous activated carbon layer.
The housing lower end of described coarse filtration oily-water seperating equipment 2 and fine filtering decolouring device 3 is respectively equipped with the long-pending assorted funnel 21,27 of long-pending oil, each funnel lower end is communicated with centrifuge or filter press 8 by oil pipe and valve respectively, and centrifuge or filter press 8 oil-outs are communicated with contaminated-oil basin 5 by sump oil backflow oil pipe 12.
In oil filtering system, also be provided with the backwash system, described backwash system comprises air compressor machine, the escape pipe 14 of air compressor machine 7 is communicated with the efferent duct of coarse filtration oily-water seperating equipment 2 and fine filtering decolouring device 3 respectively, and be respectively arranged with back flush valves 15a, 16a, operate as normal is valve-off 15a, 16a, open valve 17a, 9a, air compressor machine 7 is started working when backwash, open described back flush valves 15a, 16a, valve- off 17a, 9a make air compressor machine work carry out backwash to coarse filtration oily-water seperating equipment and/or fine filtering decolouring device inner filtration mechanism simultaneously.
On the oil pipe between surge tank 1 and the absolute oil pond 6, oil well pump 32 is installed.
Embodiment two: referring to Fig. 1, Fig. 4, Fig. 5, Fig. 6, Fig. 6-1, Fig. 7, Fig. 8, number identical with embodiment one, meaning is identical, something in common does not repeat, different is: the decolouring impurity elimination filter core 26 that many rows are installed in fine filtering decolouring device 3 cavitys, fine filtering decolouring device cavity is divided into upper and lower two totally-enclosed cavitys by a horizontal supporting plate 37, is respectively negative pressure chamber 35 and grease chamber 36, and is provided with the exhaust pressure electromagnetic valve in negative pressure chamber.Each impurity elimination filter core 26 upper end suction pipe 30 that decolour is separately fixed on the gripper shoe 37, and suction pipe 30 is communicated with negative pressure chamber 35.Absolute oil oil pick-up tube 9 is communicated with negative pressure chamber 35.

Claims (9)

1. oil filter of nonferrous metal foil rolling industry, comprise contaminated-oil basin or slop tank, absolute oil pond or absolute oil jar, oil filtering system, it is characterized in that: oil filtering system contains coarse filtration oily-water seperating equipment and fine filtering decolouring device, surge tank and vavuum pump, thick worry oily-water seperating equipment oil-out is communicated with by pipeline and fine filtering decolouring device, thick worry oily-water seperating equipment oil-in is communicated with contaminated-oil basin or slop tank by pipeline and tubing pump, fine filtering decolouring device oil-out is communicated with surge tank top by pipeline, absolute oil pond or absolute oil jar are communicated with the surge tank bottom, and vavuum pump is communicated with the surge tank top by pipeline.
2. oil filter of nonferrous metal foil rolling industry according to claim 1, it is characterized in that: a dehydration impurity elimination filter core is installed in coarse filtration oily-water seperating equipment cavity at least, described dehydration impurity elimination filter core comprises at least two filter cylinders of installing with one heart with holes, each filter cylinder lower end sealing, the upper end is provided with oil-out and is sealed and installed with flowline, on each a filter cylinder with holes two side or a sidewall, respectively be set with one deck oil filter cloth that blocks water excessively, be filled with the oily material layers of hydrophilic mistake between the adjacent filter cylinder with holes.
3. oil filter of nonferrous metal foil rolling industry according to claim 1, it is characterized in that: in fine filtering decolouring device cavity, at least one look impurity elimination filter core of getting rid of is installed, described each decolouring impurity elimination filter core comprises at least three filter cylinders of installing with one heart with holes, each filter cylinder lower end sealing, the upper end is provided with oil-out and is sealed and installed with suction pipe, described each decolouring impurity elimination filter core has at least between one group of two adjacent filter cylinder with holes and is filled with the decolouring material layer, is filled with filter miscellaneous material layer between all the other adjacent filter cylinders with holes.
4. oil filter of nonferrous metal foil rolling industry according to claim 3 is characterized in that: described filter miscellaneous material is a graininess or fibrous, and filter miscellaneous material layer is two-layer when above, and oneself thing granularity of damming outside to inside is by diminishing greatly gradually.
5. oil filter of nonferrous metal foil rolling industry according to claim 3 is characterized in that: described decolouring material layer is the granular active carbon layer, perhaps is the fibrous activated carbon layer.
6. oil filter of nonferrous metal foil rolling industry according to claim 1, it is characterized in that: the housing lower end of described coarse filtration oily-water seperating equipment and fine filtering decolouring device is respectively equipped with the long-pending assorted funnel of long-pending oil, each funnel lower end is communicated with centrifuge or filter press by oil pipe and valve respectively, and centrifuge or filter press oil-out are communicated with contaminated-oil basin by sump oil backflow oil pipe.
7. oil filter of nonferrous metal foil rolling industry according to claim 1 is characterized in that: thick consider between oily-water seperating equipment and the fine filtering decolouring device on the pipeline, slightly consider between oily-water seperating equipment and contaminated-oil basin or the slop tank on the pipeline, fine filtering decolours between device and the surge tank on the pipeline, on the pipeline pipeline valve is installed all between absolute oil pond or absolute oil jar and the surge tank.
8. oil filter of nonferrous metal foil rolling industry according to claim 1, it is characterized in that: in oil filtering system, also be provided with the backwash system, described backwash system comprises air compressor machine, the escape pipe of air compressor machine is communicated with the efferent duct of coarse filtration oily-water seperating equipment and fine filtering decolouring device respectively, and be respectively arranged with back flush valves, when backwash, open described back flush valves, close the output by-pass valve control on the efferent duct of coarse filtration oily-water seperating equipment and fine filtering decolouring device simultaneously, make air compressor machine work carry out backwash coarse filtration oily-water seperating equipment and/or fine filtering decolouring device inner filtration mechanism.
9. oil filter of nonferrous metal foil rolling industry according to claim 1 is characterized in that: on the oil pipe between surge tank and the absolute oil pond oil well pump is installed.
CN200910066134A 2009-09-14 2009-09-14 Oil filter of nonferrous metal foil rolling industry Pending CN101690954A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200910066134A CN101690954A (en) 2009-09-14 2009-09-14 Oil filter of nonferrous metal foil rolling industry

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200910066134A CN101690954A (en) 2009-09-14 2009-09-14 Oil filter of nonferrous metal foil rolling industry

Publications (1)

Publication Number Publication Date
CN101690954A true CN101690954A (en) 2010-04-07

Family

ID=42079695

Family Applications (1)

Application Number Title Priority Date Filing Date
CN200910066134A Pending CN101690954A (en) 2009-09-14 2009-09-14 Oil filter of nonferrous metal foil rolling industry

Country Status (1)

Country Link
CN (1) CN101690954A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102601118A (en) * 2012-03-12 2012-07-25 启东市南方润滑液压设备有限公司 Lubricating system of cold reducing mill
CN102847733A (en) * 2012-08-20 2013-01-02 洛阳首龙铝业有限责任公司 Aluminum foil vacuum low-temperature oil removing process and equipment
CN103953528A (en) * 2014-04-14 2014-07-30 成都威钢石油设备有限公司 Negative pressure vacuum system
CN111085040A (en) * 2020-01-03 2020-05-01 宝应县恒泰电器设备厂 Oil purification system and method
CN114665225A (en) * 2022-04-18 2022-06-24 四川卓勤新材料科技有限公司 Automatic oil filtering system for lithium ion battery diaphragm production line and control method

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102601118A (en) * 2012-03-12 2012-07-25 启东市南方润滑液压设备有限公司 Lubricating system of cold reducing mill
CN102847733A (en) * 2012-08-20 2013-01-02 洛阳首龙铝业有限责任公司 Aluminum foil vacuum low-temperature oil removing process and equipment
CN103953528A (en) * 2014-04-14 2014-07-30 成都威钢石油设备有限公司 Negative pressure vacuum system
CN111085040A (en) * 2020-01-03 2020-05-01 宝应县恒泰电器设备厂 Oil purification system and method
CN111085040B (en) * 2020-01-03 2022-05-27 宝应县恒泰电器设备厂 Oil purification method utilizing oil purification system
CN114665225A (en) * 2022-04-18 2022-06-24 四川卓勤新材料科技有限公司 Automatic oil filtering system for lithium ion battery diaphragm production line and control method
CN114665225B (en) * 2022-04-18 2023-12-01 四川卓勤新材料科技有限公司 Automatic oil filtering system of lithium ion battery diaphragm production line and control method

Similar Documents

Publication Publication Date Title
CN101690954A (en) Oil filter of nonferrous metal foil rolling industry
CN204898589U (en) Clean vehicle sewage cycle system of recycling of road
CN101690858A (en) Oil-water separation filter element and coarse filtering oil-water separation device of oil filter
CN201552186U (en) Oil filter in non-ferrous metal foil rolling industry
CN201670832U (en) Oil purification treatment equipment
CN203918637U (en) Lathe cooling water recirculation system
CN215141001U (en) Oil liquid recycling and returning device
CN203476923U (en) Recovery unit of fluid in hydraulic filter
CN201529423U (en) Water-oil separating filter core and rough-filtration water-oil separator of oil filter
CN207057148U (en) One kind machining waste iron filing cleaning device
CN101508516B (en) Automated production process for directly filtering sewage sludge and automatic production line
CN102874893A (en) Automatic forced discharge oil-water separation device
CN208591605U (en) A kind of spiral mud-pressing mechanism
CN106731355A (en) Full-automatic tobacco gas separates and recovers integration apparatus
CN204865170U (en) Copper -containing waste water copper powder recovery unit
CN207805143U (en) A kind of continous way filtering equipment
CN221141522U (en) Circulating liquid purifying system of continuous production strip steel production line
CN216092504U (en) Pulp filtering device of papermaking wastewater treatment equipment
CN219784097U (en) Oil separation device of BDO system
CN215232633U (en) Petrochemical oil-water separation equipment
CN222498780U (en) A sewage filtering device
CN205076907U (en) Waste water treatment equipment for silt
CN216223310U (en) A mud water recovery device
CN220245724U (en) High-concentration organic wastewater treatment device
CN221296936U (en) Water circulation system for cooling bearing bush of squeezer roller

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20100407