CN111841100A - Filter assembly for waste lubricating liquid sawdust machine - Google Patents
Filter assembly for waste lubricating liquid sawdust machine Download PDFInfo
- Publication number
- CN111841100A CN111841100A CN202010668007.6A CN202010668007A CN111841100A CN 111841100 A CN111841100 A CN 111841100A CN 202010668007 A CN202010668007 A CN 202010668007A CN 111841100 A CN111841100 A CN 111841100A
- Authority
- CN
- China
- Prior art keywords
- filter
- fixedly connected
- injection pipe
- access cover
- cylinder
- 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
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 39
- 230000001050 lubricating effect Effects 0.000 title claims abstract description 32
- 239000002699 waste material Substances 0.000 title claims abstract description 15
- 238000002347 injection Methods 0.000 claims abstract description 34
- 239000007924 injection Substances 0.000 claims abstract description 34
- 239000012530 fluid Substances 0.000 claims abstract description 14
- 238000007789 sealing Methods 0.000 claims description 35
- 238000000926 separation method Methods 0.000 claims description 12
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 9
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 9
- 241001330002 Bambuseae Species 0.000 claims description 9
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 9
- 239000011425 bamboo Substances 0.000 claims description 9
- 239000007787 solid Substances 0.000 claims description 7
- 239000002184 metal Substances 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 5
- 238000005381 potential energy Methods 0.000 abstract description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract 2
- 239000003921 oil Substances 0.000 description 16
- 230000000903 blocking effect Effects 0.000 description 7
- 238000001914 filtration Methods 0.000 description 6
- 238000000746 purification Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000000428 dust Substances 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 239000012634 fragment Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
- B01D29/03—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements self-supporting
- B01D29/035—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements self-supporting with curved filtering elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/76—Handling the filter cake in the filter for purposes other than for regenerating
- B01D29/86—Retarding cake deposition on the filter during the filtration period, e.g. using stirrers
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M175/00—Working-up used lubricants to recover useful products ; Cleaning
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Auxiliary Devices For Machine Tools (AREA)
Abstract
The invention discloses a filter assembly for a waste lubricating fluid sawdust machine, which comprises a filter cartridge, wherein a filter screen and a connecting cylinder are respectively arranged inside the filter cartridge, the connecting cylinder is positioned at the top end of the filter screen, the connecting cylinder is rotationally connected with the filter cartridge, blades are fixedly connected to the outer side of the connecting cylinder, a first maintenance cover is fixedly connected to the top end of the filter cartridge, a high-pressure oil injection pipe is fixedly penetrated through the top end of the first maintenance cover, an injection pipe is fixedly connected to the bottom end of the high-pressure oil injection pipe, and the injection pipe is positioned on one side of the blades; through install the injection pipe additional in the injection pipe bottom, the lubricated liquid that is stirred drives the metal piece on filter screen surface, has avoided metal piece to deposit on filter screen surface, has promoted the filter area of filter screen, rotates the in-process at the blade, and the potential energy direct conversion that is sprayed by lubricated liquid becomes rotatory kinetic energy, need not to drive the blade through extra power device and rotates, has reduced the consumption of filter assembly electric energy for filter assembly is energy-concerving and environment-protective more.
Description
Technical Field
The invention belongs to the technical field of filtration, and particularly relates to a filter assembly for a waste lubricating fluid sawdust machine.
Background
The lubricating liquid is a liquid lubricant which is used on various types of machines to reduce friction and protect the machines and workpieces, mainly plays roles of lubrication, cooling, rust prevention, cleaning, sealing, buffering and the like, is widely used on a saw dust machine, can be continuously recycled after being filtered, greatly reduces the production cost by recycling and reusing the lubricating liquid, saves resources and protects the environment. The saw-dust bed operation in-process has a large amount of lubricated liquid of use, this partial lubricated liquid can be by recycle, but lubricated liquid can contain more impurity when retrieving, produce more metal piece easily, need filter purification through filter assembly, the filter assembly on the existing market generally only filters through the filter screen, the effect of purification is relatively poor, and in the purification process, impurity in the lubricated liquid can be piled up on the filter screen by one, block up the filter screen, greatly reduced lubricated liquid filtration efficiency's problem, we propose a useless lubricated liquid for saw-dust bed filter assembly for this reason.
Disclosure of Invention
The invention aims to provide a filter assembly for a waste lubricating liquid sawdust machine, which is used for solving the problems that the filter assembly in the current market is generally only filtered by a filter screen, the purification effect is poor, impurities in the lubricating liquid are gradually accumulated on the filter screen in the purification process to block the filter screen, and the filtering efficiency of the lubricating liquid is greatly reduced.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a useless lubricated liquid filter component for sawdust bed, includes the cartridge filter, cartridge filter inside is provided with filter screen and connecting cylinder respectively, the connecting cylinder is located the filter screen top, the connecting cylinder rotates with the cartridge filter to be connected, connecting cylinder outside fixedly connected with blade, the first access cover of filter cylinder top fixedly connected with, first access cover top is fixed to be worn to be equipped with high-pressure oiling pipe, high-pressure oiling pipe bottom fixedly connected with injection pipe, the injection pipe is located blade one side.
Preferably, the filter cartridge inner wall fixedly connected with is solid fixed ring, the filter screen outside fixedly connected with is fixed reason, fixed reason bottom fixedly connected with sealing ring, gu fixed ring has seted up the seal groove in the top, the inside fixedly connected with of seal groove and sealing ring assorted rubber sleeve, sealing ring and rubber sleeve sealing connection.
Preferably, cartridge filter bottom fixedly connected with surge drum, cartridge filter inner wall fixedly connected with separation section of thick bamboo, the separation section of thick bamboo is located solid fixed ring bottom, separation section of thick bamboo bottom extends to inside the surge drum.
Preferably, the blades are equidistantly distributed on the outer side of the connecting cylinder, and the cross sections of the blades are rectangular.
Preferably, the inner included angle between the high-pressure oil injection pipe and the injection pipe is 172 degrees, and the inner diameter and the outer diameter of the high-pressure oil injection pipe are consistent with those of the injection pipe.
Preferably, first access cover passes through screw thread and cartridge filter fixed connection, be provided with first sealed the pad between first access cover and the cartridge filter, first access cover is through first sealed pad and cartridge filter sealing connection.
Preferably, the bottom ends of the two sides of the sealing ring are inclined planes, and the sealing ring is a hollow circular ring.
Preferably, an oil outlet pipe is fixedly arranged on two sides of the filter cylinder in a penetrating mode, and one end of the oil outlet pipe is located on the outer side of the blocking cylinder.
Preferably, the shape of the blocking cylinder and the shape of the collecting cylinder are both funnel-shaped, and the inner diameter of the top end of the collecting cylinder is consistent with the inner diameter of the filter cylinder.
Preferably, the bottom end of the collecting cylinder is provided with a second access cover, the second access cover is fixedly connected with the collecting cylinder through threads, a second sealing gasket is arranged between the collecting cylinder and the second access cover, and the second access cover is in sealing connection with the collecting cylinder through the second sealing gasket.
Compared with the prior art, the invention has the beneficial effects that:
(1) through install the injection pipe additional in the injection pipe bottom, when needs filter used lubricated liquid, lubricated liquid is spout by the injection pipe through high-pressure notes oil pipe, the injection of column lubricated liquid is on the blade surface, drive the connecting cylinder by the blade and rotate, stir the lubricated liquid on filter screen top by the blade, the lubricated liquid that is stirred drives the metal piece on filter screen surface, the metal piece has been avoided precipitating on filter screen surface, the filter area of filter screen has been promoted, at the blade rotation in-process, the potential energy direct conversion that sprays by lubricated liquid is rotatory kinetic energy, need not to drive the blade through extra power device and rotates, the consumption of filter assembly electric energy has been reduced, make filter assembly energy-concerving and environment-protective more.
(2) Through in the inside collection dress separation section of thick bamboo of filter screen, tiny piece still can smuggle secretly to the lubricated liquid of infiltration filter screen, tiny piece sink gradually to the collecting vessel bottom along separation section of thick bamboo inner wall, further purified lubricated liquid and flow through an oil pipe, promoted lubricated liquid purity.
(3) Through install the sealing ring additional at fixed reason bottom, under the effect of sealing ring and rubber sleeve, promoted fixed reason and solid fixed ring and be connected the leakproofness, further promoted to purify lubricated liquid purity.
Drawings
FIG. 1 is a schematic view of a filter assembly according to the present invention;
FIG. 2 is an enlarged view of a portion a of FIG. 1;
FIG. 3 is an enlarged view of the structure at b in FIG. 1;
FIG. 4 is an enlarged view of the structure at c in FIG. 1;
in the figure: 1. a filter cartridge; 2. a first access cover; 21. a first gasket; 3. an oil outlet pipe; 4. a collection canister; 5. a second access cover; 51. a second gasket; 7. a high pressure filler pipe; 71. an injection pipe; 8. a connecting cylinder; 81. a blade; 9. filtering with a screen; 91. a fixed rim; 92. a fixing ring; 93. a seal ring; 94. a rubber sleeve; 10. a barrier cylinder.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a waste lubricating fluid filter assembly for sawdust bed, includes cartridge filter 1, 1 inside filter cartridge is provided with filter screen 9 and connecting cylinder 8 respectively, connecting cylinder 8 is located filter screen 9 top, connecting cylinder 8 rotates with cartridge filter 1 to be connected, 8 outside fixedly connected with blades 81 of connecting cylinder, the first access cover 2 of 1 top fixedly connected with of cartridge filter, the fixed high pressure oil pipe 7 that wears to be equipped with in first access cover 2 top, 7 bottom fixedly connected with injection pipe 71 of high pressure oil pipe, injection pipe 71 is located blade 81 one side.
In order to promote filter screen 9 and solid fixed ring 92 and be connected the leakproofness, in this embodiment, preferably, cartridge filter 1 inner wall fixedly connected with solid fixed ring 92, filter screen 9 outside fixedly connected with flange 91, flange 91 bottom fixedly connected with sealing ring 93, gu fixed ring 92 top has seted up the seal groove, the inside fixedly connected with of seal groove and sealing ring 93 assorted rubber sleeve 94, sealing ring 93 and rubber sleeve 94 sealing connection.
In order to further filter the lubricating liquid, in this embodiment, preferably, the bottom end of the filter cartridge 1 is fixedly connected with the collecting cylinder 4, the inner wall of the filter cartridge 1 is fixedly connected with the blocking cylinder 10, the blocking cylinder 10 is located at the bottom end of the fixing ring 92, and the bottom end of the blocking cylinder 10 extends to the inside of the collecting cylinder 4.
In order to facilitate the rotation of the blades 81, in this embodiment, preferably, the blades 81 are equidistantly distributed outside the connecting cylinder 8, and the cross section of the blades 81 is rectangular.
In order to facilitate the injection of the lubricating fluid, in the present embodiment, it is preferable that the inner included angle between the high-pressure oil injection pipe 7 and the injection pipe 71 is 172 degrees, and the inner diameter and the outer diameter of the high-pressure oil injection pipe 7 are the same as the inner diameter and the outer diameter of the injection pipe 71.
In order to facilitate the detachment of the first access cover 2, in the embodiment, preferably, the first access cover 2 is fixedly connected with the filter cartridge 1 through a screw thread, a first sealing gasket 21 is arranged between the first access cover 2 and the filter cartridge 1, and the first access cover 2 is connected with the filter cartridge 1 through the first sealing gasket 21 in a sealing manner.
In order to facilitate the sealing ring 93 to enter the rubber sleeve 94, in this embodiment, it is preferable that the bottom ends of both sides of the sealing ring 93 are inclined surfaces, and the sealing ring 93 is shaped as a hollow circular ring.
In order to prevent the lubricating fluid from flowing into the oil outlet pipe 3, in the present embodiment, preferably, the oil outlet pipe 3 is fixedly disposed on both sides of the filter cartridge 1, and one end of the oil outlet pipe 3 is located outside the blocking cartridge 10.
In order to fix the collecting cylinder 4, in the present embodiment, it is preferable that the blocking cylinder 10 and the collecting cylinder 4 are funnel-shaped, and the inner diameter of the top end of the collecting cylinder 4 is the same as the inner diameter of the filter cartridge 1.
In order to facilitate the detachment of the second access cover 5, in this embodiment, preferably, the second access cover 5 is disposed at the bottom end of the collecting cylinder 4, the second access cover 5 is fixedly connected with the collecting cylinder 4 through a thread, a second sealing gasket 51 is disposed between the collecting cylinder 4 and the second access cover 5, and the second access cover 5 is hermetically connected with the collecting cylinder 4 through the second sealing gasket 51.
The working principle and the using process of the invention are as follows: after the device is completed, the injection pipe 71 is additionally arranged at the bottom end of the injection pipe 71, when used lubricating liquid needs to be filtered, the lubricating liquid is sprayed out from the injection pipe 71 through the high-pressure oil injection pipe 7, the columnar lubricating liquid is sprayed on the surface of the blade 81, the blade 81 drives the connecting cylinder 8 to rotate, the blade 81 stirs the lubricating liquid at the top end of the filter screen 9, the stirred lubricating liquid drives metal fragments on the surface of the filter screen 9, the metal fragments are prevented from being deposited on the surface of the filter screen 9, the filtering area of the filter screen 9 is increased, in the rotating process of the blade 81, the potential energy sprayed by the lubricating liquid is directly converted into rotary kinetic energy, the blade 81 does not need to be driven to rotate through an additional power device, the consumption of electric energy of a filtering component is reduced, and; by integrally assembling the separation cylinder 10 in the filter screen 9, the lubricating liquid permeating the filter screen 9 still carries fine scraps, and the fine scraps gradually sink to the bottom end of the collection cylinder 4 along the inner wall of the separation cylinder 10, so that the lubricating liquid is further purified, the lubricating liquid is further purified and flows out through the oil outlet pipe 3, and the purity of the lubricating liquid is improved; through install sealing ring 93 additional in fixed reason 91 bottom, under the effect of sealing ring 93 and rubber sleeve 94, promoted fixed reason 91 and fixed ring 92 and be connected the leakproofness, further promoted to purify lubricated liquid purity.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a useless lubricated liquid filter component for sawdust machine, includes cartridge filter (1), its characterized in that: cartridge filter (1) inside is provided with filter screen (9) and connecting cylinder (8) respectively, connecting cylinder (8) are located filter screen (9) top, connecting cylinder (8) rotate with cartridge filter (1) and are connected, connecting cylinder (8) outside fixedly connected with blade (81), the first access cover (2) of cartridge filter (1) top fixedly connected with, first access cover (2) top is fixed wears to be equipped with high pressure oiling pipe (7), high pressure oiling pipe (7) bottom fixedly connected with injection pipe (71), injection pipe (71) are located blade (81) one side.
2. The filter assembly for a waste lubricating fluid sawdust machine of claim 1, wherein: the utility model discloses a filter cartridge, including cartridge filter (1) inner wall fixedly connected with solid fixed ring (92), filter screen (9) outside fixedly connected with fixed reason (91), fixed reason (91) bottom fixedly connected with sealing ring (93), gu fixed ring (92) top has seted up the seal groove, the inside fixedly connected with of seal groove and sealing ring (93) assorted rubber sleeve (94), sealing ring (93) and rubber sleeve (94) sealing connection.
3. The filter assembly for a waste lubricating fluid sawdust machine of claim 2, wherein: cartridge filter (1) bottom fixedly connected with surge drum (4), cartridge filter (1) inner wall fixedly connected with separation section of thick bamboo (10), separation section of thick bamboo (10) are located solid fixed ring (92) bottom, separation section of thick bamboo (10) bottom extends to inside surge drum (4).
4. The filter assembly for a waste lubricating fluid sawdust machine of claim 1, wherein: the blades (81) are distributed on the outer side of the connecting cylinder (8) at equal intervals, and the cross sections of the blades (81) are rectangular.
5. The filter assembly for a waste lubricating fluid sawdust machine of claim 1, wherein: the inner included angle between the high-pressure oil injection pipe (7) and the injection pipe (71) is 172 degrees, and the inner diameter and the outer diameter of the high-pressure oil injection pipe (7) are the same as those of the injection pipe (71).
6. The filter assembly for a waste lubricating fluid sawdust machine of claim 1, wherein: first access cover (2) pass through screw thread and cartridge filter (1) fixed connection, be provided with first sealed pad (21) between first access cover (2) and cartridge filter (1), first access cover (2) are through first sealed pad (21) and cartridge filter (1) sealing connection.
7. The filter assembly for a waste lubricating fluid sawdust machine of claim 2, wherein: the bottom ends of two sides of the sealing ring (93) are inclined planes, and the sealing ring (93) is in a hollow circular ring shape.
8. The filter assembly for a waste lubricating fluid sawdust machine of claim 3, wherein: the cartridge filter (1) both sides all are fixed to wear to be equipped with out oil pipe (3), go out oil pipe (3) one end and lie in the separation section of thick bamboo (10) outside.
9. The filter assembly for a waste lubricating fluid sawdust machine of claim 3, wherein: the shape of the separation cylinder (10) and the shape of the collection cylinder (4) are funnel-shaped, and the inner diameter of the top end of the collection cylinder (4) is consistent with that of the filter cylinder (1).
10. The filter assembly for a waste lubricating fluid sawdust machine of claim 3, wherein: the collecting cylinder (4) bottom is provided with second access cover (5), second access cover (5) pass through screw thread and collecting cylinder (4) fixed connection, it is provided with the sealed pad of second (51) to set up between collecting cylinder (4) and second access cover (5), second access cover (5) are through sealed pad of second (51) and collecting cylinder (4) sealing connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010668007.6A CN111841100A (en) | 2020-07-13 | 2020-07-13 | Filter assembly for waste lubricating liquid sawdust machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010668007.6A CN111841100A (en) | 2020-07-13 | 2020-07-13 | Filter assembly for waste lubricating liquid sawdust machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111841100A true CN111841100A (en) | 2020-10-30 |
Family
ID=72983834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010668007.6A Pending CN111841100A (en) | 2020-07-13 | 2020-07-13 | Filter assembly for waste lubricating liquid sawdust machine |
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| Country | Link |
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| CN (1) | CN111841100A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207401229U (en) * | 2017-10-14 | 2018-05-25 | 山东鑫海能润滑油有限公司 | A kind of gear reconditioner |
| CN208762289U (en) * | 2018-06-01 | 2019-04-19 | 陈琪琪 | A kind of sewage treatment unit |
| CN209378575U (en) * | 2018-11-21 | 2019-09-13 | 江西司太立制药有限公司 | A kind of medicine intermediate filter device |
| CN209917380U (en) * | 2019-04-12 | 2020-01-10 | 深圳市爱特爱全优润滑技术工程有限公司 | High-efficient recovery unit that filters of abandonment lathe lubricating oil |
| CN110694795A (en) * | 2019-10-21 | 2020-01-17 | 郭寒生 | Waste engine oil recycling treatment method |
| CN110935231A (en) * | 2019-12-11 | 2020-03-31 | 天津市亨必达化学合成物有限公司 | Pharmaceutical wastewater filtering device |
-
2020
- 2020-07-13 CN CN202010668007.6A patent/CN111841100A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207401229U (en) * | 2017-10-14 | 2018-05-25 | 山东鑫海能润滑油有限公司 | A kind of gear reconditioner |
| CN208762289U (en) * | 2018-06-01 | 2019-04-19 | 陈琪琪 | A kind of sewage treatment unit |
| CN209378575U (en) * | 2018-11-21 | 2019-09-13 | 江西司太立制药有限公司 | A kind of medicine intermediate filter device |
| CN209917380U (en) * | 2019-04-12 | 2020-01-10 | 深圳市爱特爱全优润滑技术工程有限公司 | High-efficient recovery unit that filters of abandonment lathe lubricating oil |
| CN110694795A (en) * | 2019-10-21 | 2020-01-17 | 郭寒生 | Waste engine oil recycling treatment method |
| CN110935231A (en) * | 2019-12-11 | 2020-03-31 | 天津市亨必达化学合成物有限公司 | Pharmaceutical wastewater filtering device |
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Application publication date: 20201030 |
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| RJ01 | Rejection of invention patent application after publication |