CN114669117A - Oil-liquid filtering device for multi-cylinder hydraulic crusher - Google Patents
Oil-liquid filtering device for multi-cylinder hydraulic crusher Download PDFInfo
- Publication number
- CN114669117A CN114669117A CN202210482425.5A CN202210482425A CN114669117A CN 114669117 A CN114669117 A CN 114669117A CN 202210482425 A CN202210482425 A CN 202210482425A CN 114669117 A CN114669117 A CN 114669117A
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- oil
- filter screen
- filter
- roller
- cylinder hydraulic
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- 238000001914 filtration Methods 0.000 title claims abstract description 26
- 239000007788 liquid Substances 0.000 title claims abstract description 19
- 238000010438 heat treatment Methods 0.000 claims description 23
- 238000001816 cooling Methods 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 230000005389 magnetism Effects 0.000 claims description 6
- 239000003921 oil Substances 0.000 abstract description 44
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 32
- 229910052742 iron Inorganic materials 0.000 abstract description 16
- 239000002893 slag Substances 0.000 abstract description 16
- 239000010720 hydraulic oil Substances 0.000 abstract description 4
- 238000003491 array Methods 0.000 abstract description 2
- 230000003670 easy-to-clean Effects 0.000 abstract 1
- 239000012530 fluid Substances 0.000 description 16
- 239000004575 stone Substances 0.000 description 10
- 230000000694 effects Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 239000000428 dust Substances 0.000 description 4
- 239000010802 sludge Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/15—Filters with filtering elements which move during the filtering operation with rotary plane filtering surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/35—Filters with filtering elements which move during the filtering operation with multiple filtering elements characterised by their mutual disposition
- B01D33/37—Filters with filtering elements which move during the filtering operation with multiple filtering elements characterised by their mutual disposition in parallel connection
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/44—Regenerating the filter material in the filter
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/18—Heating or cooling the filters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
- B01D36/02—Combinations of filters of different kinds
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Fluid-Pressure Circuits (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention relates to the technical field of hydraulic oil filtering devices, and provides a multi-cylinder hydraulic breaker oil liquid filtering device which comprises a shell and a filtering assembly, wherein the shell is arranged on an oil pipe, the filtering assembly is arranged in the shell and comprises a rotating shaft, a magnetic attraction sheet, a plurality of blades and a first filter screen, the rotating shaft is rotatably arranged in the shell, the magnetic attraction sheet is attached to the inner wall of the shell, a plurality of blade arrays are arranged on the circumference of the rotating shaft, and the first filter screen is arranged at the end part of each blade. Through the technical scheme, the problem that iron slag in an oil way of a hydraulic system is not easy to clean in the prior art is solved.
Description
Technical Field
The invention relates to the technical field of hydraulic oil filtering devices, in particular to a multi-cylinder hydraulic crusher oil filtering device.
Background
The hydraulic crusher is a crushing machine with the particle size of more than three millimeters in discharged materials accounting for more than 50% of the total discharge amount, the crushing operation is usually divided into coarse crushing, medium crushing and fine crushing according to the particle size of the fed materials and the discharged materials, and common sandstone equipment comprises a jaw type stone crusher, a counterattack type stone crusher, an impact type stone crusher, a composite type stone crusher, a single-section hammer type stone crusher, a vertical type stone crusher, a gyratory stone crusher, a conical type stone crusher, a roller type stone crusher, a double-roller type stone crusher and the like;
the hydraulic crusher is powered by a hydraulic system, the working environment of the hydraulic crusher is complex, the dust raising rate is high, dust easily enters an oil way of the hydraulic system, the working load is high, the contact, extrusion and meshing degrees of internal mechanical parts are high, abrasion is caused, and impurities such as iron slag and the like are easily generated; the dust can form fatlute after piling up for a long time, blocks up the oil circuit easily, and the iron slag is carried in the oil circuit and also can be polluted hydraulic oil, causes loss of pressure, and serious still can damage the component, influences hydraulic system normal work, to the appearance of above problem, prior art does not have fine solution, has brought the trouble for the normal clear of this field work.
Disclosure of Invention
The invention provides a multi-cylinder hydraulic crusher oil-liquid filtering device, which solves the problem that iron slag in an oil way of a hydraulic system is difficult to clean in the related technology.
The technical scheme of the invention is as follows: the utility model provides a multi-cylinder hydraulic breaker oil liquid filter equipment, includes casing and filtering component, the casing sets up on oil pipe, filtering component locates in the casing, filtering component includes that pivot, magnetism inhale piece, a plurality of blade and first filter screen, the pivot rotates and sets up in the casing, magnetism is inhaled the piece and is pasted and locate shells inner wall, a plurality of blade array sets up the pivot circumference, first filter screen sets up the blade tip.
As a further technical solution, it is proposed that,
the filter screen is characterized in that burrs are arranged on the first filter screen, the filter screen further comprises a twisting roller, a plurality of salient points are arranged on the surface of the twisting roller, the twisting roller is rotatably arranged on the inner wall of the shell, the first filter screen is hinged to the end part of the blade through a torsional spring, the first filter screen is abutted to the twisting roller and swings, and the twisting roller is rolled and rubbed on the net surface of the first filter screen.
As a further technical solution, it is proposed that,
twist with roller all set up in pairs, two first filter screen becomes "V" type and arranges, and the opening one side of "V" type is towards fluid flow direction, two form the clearance between twisting with a ball, first filter screen passes the clearance.
As a further technical solution, it is proposed that,
still including storing up the mud roller, store up the inside mud chamber that has of mud roller, store up have on the mud roller roll surface a plurality of with store up the toper through-hole of mud chamber intercommunication, the great one end of toper through-hole diameter is towards the outside, it rotates and sets up to store up the mud roller shells inner wall, first filter screen butt store up the mud roller and produce the swing, it rubs to store up the mud roller first filter screen net surface, store up the mud roller rotation direction with first filter screen moving direction is relative.
As a further technical solution, it is proposed that,
the inlet end of the oil pipe is connected with a heating coil, and a heating module is arranged on the heating coil.
As a further technical solution, the method comprises the following steps,
one end of the cooling coil is connected with the outlet end of the oil pipe, the other end of the cooling coil is connected with a hydraulic system, and a circulating water jacket is sleeved outside the cooling coil.
As a further technical solution, it is proposed that,
still include the filter tube, be provided with the second filter screen in the filter tube, the filter tube both ends respectively have a plurality of locking openings, the filter tube both ends respectively with heating coil with oil pipe connects, the cover is equipped with two lock sleeves on the filter tube, the lock sleeve covers the locking opening.
The working principle and the beneficial effects of the invention are as follows: the shell is arranged on an oil pipe, the interior of the shell is communicated with the interior of the oil pipe, a rotating shaft is rotatably arranged on the bottom wall of the shell, a plurality of blades are arranged on the circumferential array of the rotating shaft, a first filter screen is arranged at the end part of each blade, during operation, the plurality of filter screens sequentially pass through a conveying path of oil in the oil pipe by virtue of rotation, iron slag is blocked after contacting with the filter screens and is brought to an area in the shell along with continuous rotation, the filter screens move along the inner wall of the shell, the magnetic suction sheets attached to the inner wall of the shell adsorb the iron slag, the filter screens are cleaned on line, when the filter screens pass through the conveying path of the oil again, the iron slag on the filter screens is completely adsorbed, the blocking action of the iron slag can be performed again, so that the cleaning in a circulating and reciprocating manner is formed, the plurality of filter screens are arranged, so that the oil can be filtered relatively, fully and thoroughly, the iron slag is prevented from entering the hydraulic system, internal elements are protected, and the normal work of the hydraulic system is ensured.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a schematic structural diagram of an oil filtering device of a multi-cylinder hydraulic crusher of the invention;
FIG. 2 is an enlarged view taken at A in FIG. 1;
FIG. 3 is a top view of the oil-liquid filtering device of the multi-cylinder hydraulic breaker of the present invention;
FIG. 4 is a schematic view of the structure of a lay roller according to the present invention;
FIG. 5 is a schematic view of the internal structure of the mud storage roller of the present invention;
FIG. 6 is a schematic view of the structure of a filter tube according to the present invention;
in the figure: 1. the device comprises a shell, 2, an oil pipe, 3, a rotating shaft, 4, a magnetic suction piece, 5, blades, 6, a first filter screen, 7, burrs, 8, a twist roller, 9, a mud storage roller, 10, a mud storage cavity, 11, a conical through hole, 12, a heating coil, 13, a heating module, 14, a cooling coil, 15, a hydraulic system, 16, a circulating water jacket, 17, a filter pipe, 18, a second filter screen, 19, a locking notch, 20 and a locking sleeve.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to 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 inventive step, are intended to be within the scope of the present invention.
As shown in fig. 1-6, this embodiment provides a multi-cylinder hydraulic breaker oil liquid filter equipment, including casing 1 and filter assembly, casing 1 sets up on oil pipe 2, filter assembly locates in the casing 1, filter assembly includes pivot 3, magnetism piece 4, a plurality of blade 5 and first filter screen 6 of inhaling, pivot 3 rotates the setting and is in the casing 1, magnetism is inhaled piece 4 and is pasted and is located 1 inner wall of casing, 5 arrays of a plurality of blades set up 3 circumference of pivot, first filter screen 6 sets up 5 tip of blade.
In the embodiment, a shell 1 is arranged on an oil pipe 2, the interior of the shell 1 is communicated with the interior of the oil pipe 2, a rotating shaft 3 is rotatably arranged on the bottom wall of the shell 1, a plurality of blades 5 are arranged on the rotating shaft 3 in a circumferential array, a first filter screen 6 is arranged at the end part of each blade 5, when the device works, the first filter screens 6 sequentially pass through a conveying path of oil liquid in the oil pipe 2 by virtue of the rotation of the rotating shaft 3, so as to filter iron slag in the oil liquid which just enters the inner cavity of the shell 1, the iron slag is blocked after contacting with the first filter screens 6 and is brought to an area in the shell 1 from the oil liquid conveying path along with the continuous rotation of the blades 5, the first filter screens 6 move along the inner wall of the shell 1, magnetic suction pieces 4 attached to the inner wall of the shell 1 in the moving process can adsorb the iron slag, the first filter screens 6 are cleaned on line, when the first filter screens 6 pass through the conveying path of the oil liquid again, the scum on first filter screen 6 has been adsorbed totally, can carry out the action of stopping of scum once more, thereby form the reciprocal clearance of circulation, the difficult problem of clearing up of scum in the 15 oil circuits of hydraulic system among the prior art has been solved, first filter screen 6 sets up a plurality ofly, make the oil liquid of every part that just got into casing 1 can both contact with first filter screen 6, thereby realize the filtration to fluid abundant thorough relatively, the device only need regularly clear up to casing 1 inner wall can, the scum has been avoided getting into hydraulic system 15, hydraulic system 15 internals has been protected, guarantee the cleanness of hydraulic oil, avoid loss of pressure, prevent the fried jam oil circuit, guarantee hydraulic system 15 and normally work.
Further, the method also comprises the following steps of,
have burr 7 on the first filter screen 6, still including twisting roller 8, a plurality of bumps 21 have on 8 roll surfaces of twisting roller, it sets up to rotate to twist roller 8 1 inner wall of casing, first filter screen 6 articulates with the help of the torsional spring 5 tip of blade, 6 butts of first filter screen twist roller 8 and produce the swing, it rubs to twist roller 8 roll 6 wire side of first filter screen.
In the embodiment, a layer of burrs 7 is arranged on the first filter screen 6, the burrs 7 can hook iron slag and oil sludge, the blocking effect of the first filter screen 6 is ensured, the iron slag filtration rate is improved, meanwhile, oil sludge can be generated after dust in the hydraulic system 15 is accumulated and gathered for a long time, the burrs 7 can well block the oil sludge and bring the oil sludge to the twisting roller 8, the first filter screen 6 is hinged to the end part of the blade 5 by virtue of a torsional spring, a plurality of salient points 21 are arranged on the roller surface of the twisting roller 8, after the first filter screen 6 is abutted to the twisting roller 8, the twisting roller 8 overcomes the elastic force of the torsional spring to enable the first filter screen 6 to swing around the torsional spring, finally, the twisting roller 8 is rotatably arranged at the twisting roller 8, when the twisting roller 8 is contacted with the first filter screen 6, the salient points 21 continuously roll the net surface of the first filter screen 6, so that the iron slag is separated from the first filter screen 6, the magnetic suction sheet 4 can conveniently adsorb the iron slag, and the cleaning effect of the magnetic suction sheet 4 is improved, let first filter screen 6 keep clean, guarantee the filter effect next time.
Further, the method also comprises the following steps of,
In this embodiment, two form the clearance between twisting roller 8, when getting into the clearance, twist roller 8 extrusion first filter screen 6, first filter screen 6 swings, thereby make first filter screen 6 pass through the clearance, improve the clearance effect of twisting roller 8, first filter screen 6 sets up in pairs, the filter efficiency has been improved, two first filter screens 6 are "V" type, "V" type opening one side is towards fluid flow direction, it produces the motive force to the filter screen to push away the flow with the help of fluid, thereby make first filter screen 6 and fluid more abundant contact, the design of V type plays the effect of gathering together, further improve the filtration rate of scum.
Further, the method also comprises the following steps of,
still including storing up the mud roller 9, store up that 9 insides of mud roller have and store up mud chamber 10, store up 9 roll surfaces of mud roller have a plurality of with store up the toper through-hole 11 of mud chamber 10 intercommunication, the great one end of toper through-hole 11 diameter is towards the outside, it sets up to store up 9 rotations of mud roller 1 inner wall of casing, 6 butts of first filter screen store up the mud roller 9 and produce the swing, it rubs to store up 9 rolls of mud roller 6 wire sides of first filter screen, store up 9 rotation directions of mud roller with 6 moving direction of first filter screen is relative.
In this embodiment, store up the mud roller 9 and roll when rubbing 6 meshes of first filter screen, the drill way edge and the 6 meshes of first filter screen direct contact of toper through-hole 11, the direction of rotation of storing up mud roller 9 is relative with the moving direction of first filter screen 6, thereby make the drill way edge of toper through-hole 11 do and dig the action, dig down fatlute on the first filter screen 6, pile up gradually in toper through-hole 11 and get into storage mud chamber 10 at last, the great one end of diameter of toper through-hole 11 is towards the outside, the fatlute of being convenient for gets into, play and gather together the effect, the less one end of toper through-hole 11 diameter is inside towards storage mud chamber 10, make fatlute be difficult to deviate from storage mud chamber 10.
Further, the method also comprises the following steps of,
the inlet end of the oil pipe 2 is connected with a heating coil 12, and a heating module 13 is arranged on the heating coil 12.
In this embodiment, there is heating coil 12 at the inlet end connection of oil pipe 2, and heating module 13 that sets up on heating coil 12 heats heating coil 12 and intraductal fluid, and fluid intensification back becomes rare, and the scum is convenient for deposit more, fatlute more easily with fluid separation, reduces the degree of difficulty that first filter screen 6 filtered fatlute and scum, and heating coil 12 prolongs the flow time of fluid in the zone of heating, guarantees the heating effect.
Further, the method also comprises the following steps of,
one end of the cooling coil 14 is connected with the outlet end of the oil pipe 2, the other end of the cooling coil is connected with a hydraulic system 15, and a circulating water jacket 16 is sleeved outside the cooling coil 14.
In this embodiment, 2 exit linkage cooling coil 14 one ends of oil pipe, hydraulic system 15 is connected to the cooling coil 14 other end, and circulation water jacket 16 is established to cooling coil 14 overcoat, and the inside circulating cold water that leads to of circulation water jacket 16 cools down fluid, makes fluid resume originally the consistency, guarantees that follow-up entering hydraulic system 15 of fluid can normally work, and cooling coil 14 prolongs the flow time of fluid in the cooling zone, guarantees the cooling effect.
Further, the method also comprises the following steps of,
still include the filter tube 17, be provided with second filter screen 18 in the filter tube 17, filter tube 17 both ends respectively have a plurality of locking opening 19, filter tube 17 both ends respectively with heating coil 12 with oil pipe 2 is connected, the cover is equipped with two lock sleeves 20 on the filter tube 17, lock sleeve 20 covers locking opening 19.
In this embodiment, the second filter screen 18 that sets up in the filter tube 17 sets up the position before fluid gets into casing 1, carry out preliminary colating before fluid gets into casing 1, filter out bulky impurity such as large granule scum, further improve the filter effect, filter tube 17 both ends have a plurality of locking opening 19, during operation establishes filter tube 17 cover outside oil pipe 2 or heating coil 12 mouth of pipe earlier, then slip lock sleeve 20 to locking opening 19 position, make locking opening 19 tighten up the location, thereby couple together oil pipe 2 and heating coil 12, easy operation during the while connection, quick assembly disassembly has been realized, be convenient for later maintenance and change.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a multi-cylinder hydraulic breaker oil liquid filter equipment, includes casing (1) and filtering component, casing (1) sets up on oil pipe (2), filtering component locates in casing (1), its characterized in that, filtering component includes pivot (3), magnetism and inhales piece (4), a plurality of blade (5) and first filter screen (6), pivot (3) rotate and set up in casing (1), magnetism is inhaled piece (4) and is pasted and locate casing (1) inner wall, a plurality of blade (5) array sets up pivot (3) circumference, first filter screen (6) set up blade (5) tip.
2. The oil-liquid filtering device of the multi-cylinder hydraulic breaker is characterized in that burrs (7) are arranged on the first filter screen (6), the oil-liquid filtering device further comprises a twisting roller (8), a plurality of salient points (21) are arranged on the roller surface of the twisting roller (8), the twisting roller (8) is rotatably arranged on the inner wall of the shell (1), the first filter screen (6) is hinged to the end part of the blade (5) through a torsion spring, the first filter screen (6) abuts against the twisting roller (8) and swings, and the twisting roller (8) rubs the mesh surface of the first filter screen (6).
3. The oil-liquid filtering device of the multi-cylinder hydraulic crusher according to claim 2, characterized in that the twisting rollers (8) and the first filter screens (6) are arranged in pairs, two first filter screens (6) are arranged in a V shape, the opening side of the V shape faces the oil flowing direction, a gap is formed between the two twisting rollers (8), and the first filter screens (6) penetrate through the gap.
4. The oil-liquid filtering device of the multi-cylinder hydraulic breaker is characterized by further comprising a mud storage roller (9), a mud storage cavity (10) is formed in the mud storage roller (9), a plurality of conical through holes (11) communicated with the mud storage cavity (10) are formed in the roller surface of the mud storage roller (9), the end, with the larger diameter, of each conical through hole (11) faces outwards, the mud storage roller (9) is rotatably arranged on the inner wall of the shell (1), the first filter screen (6) abuts against the mud storage roller (9) and swings, the mud storage roller (9) rubs against the net surface of the first filter screen (6), and the rotation direction of the mud storage roller (9) is opposite to the moving direction of the first filter screen (6).
5. The oil filter device of the multi-cylinder hydraulic crusher according to claim 1, characterized in that a heating coil (12) is connected to the inlet end of the oil pipe (2), and a heating module (13) is arranged on the heating coil (12).
6. The oil-liquid filtering device of the multi-cylinder hydraulic crusher according to claim 5, characterized in that one end of the cooling coil (14) is connected with the outlet end of the oil pipe (2), the other end of the cooling coil is connected with a hydraulic system (15), and a circulating water jacket (16) is sleeved outside the cooling coil (14).
7. The oil liquid filtering device of the multi-cylinder hydraulic breaker according to claim 1, characterized by further comprising a filter pipe (17), wherein a second filter screen (18) is arranged in the filter pipe (17), two ends of the filter pipe (17) are respectively provided with a plurality of locking notches (19), two ends of the filter pipe (17) are respectively connected with the heating coil (12) and the oil pipe (2), two locking sleeves (20) are sleeved on the filter pipe (17), and the locking notches (19) are covered by the locking sleeves (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210482425.5A CN114669117B (en) | 2022-05-05 | 2022-05-05 | Multi-cylinder hydraulic breaker oil liquid filter equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210482425.5A CN114669117B (en) | 2022-05-05 | 2022-05-05 | Multi-cylinder hydraulic breaker oil liquid filter equipment |
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| CN114669117A true CN114669117A (en) | 2022-06-28 |
| CN114669117B CN114669117B (en) | 2023-11-14 |
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| CN211536811U (en) * | 2019-12-31 | 2020-09-22 | 山东尚科环境工程有限公司 | Sewage treatment device for river drain outlet |
| CN111120280A (en) * | 2020-01-06 | 2020-05-08 | 四川金星清洁能源装备股份有限公司 | Diaphragm compressor oil way system and cleaning method thereof |
| CN111334327A (en) * | 2020-03-13 | 2020-06-26 | 陆克思 | Petroleum screening device |
| CN214465282U (en) * | 2021-03-23 | 2021-10-22 | 烟台比吉流体控制技术有限公司 | Oil filter for hydraulic system |
| CN215257138U (en) * | 2021-06-02 | 2021-12-21 | 上海垣安环保科技有限公司 | Hydraulic oil filter equipment |
| CN215694821U (en) * | 2021-08-24 | 2022-02-01 | 济南瑞工机电科技有限公司 | Return oil filtering device of crawler excavator oil filter element |
| CN215567021U (en) * | 2021-08-25 | 2022-01-18 | 大连大远液压成套设备有限公司 | Online oil filter for filtering hydraulic oil |
| CN113617108A (en) * | 2021-09-02 | 2021-11-09 | 天津市康浩鑫隆科技有限公司 | Waste grease recovery processing equipment for environmental protection engineering |
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