CN112246804A - Automatic water jet cleaning machine for inner wall of low-pressure separation tank of EVA (ethylene vinyl acetate) device - Google Patents
Automatic water jet cleaning machine for inner wall of low-pressure separation tank of EVA (ethylene vinyl acetate) device Download PDFInfo
- Publication number
- CN112246804A CN112246804A CN202011051915.7A CN202011051915A CN112246804A CN 112246804 A CN112246804 A CN 112246804A CN 202011051915 A CN202011051915 A CN 202011051915A CN 112246804 A CN112246804 A CN 112246804A
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- gear
- rod
- pneumatic motor
- supporting
- swing
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- 238000004140 cleaning Methods 0.000 title claims abstract description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 24
- 238000000926 separation method Methods 0.000 title claims abstract description 14
- 239000005038 ethylene vinyl acetate Substances 0.000 title abstract description 27
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 title abstract description 27
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 title abstract description 25
- 230000007246 mechanism Effects 0.000 claims abstract description 43
- 239000007921 spray Substances 0.000 claims abstract description 29
- 230000001681 protective effect Effects 0.000 claims description 9
- 230000001360 synchronised effect Effects 0.000 claims description 4
- 229910045601 alloy Inorganic materials 0.000 claims description 2
- 239000000956 alloy Substances 0.000 claims description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 2
- 238000005406 washing Methods 0.000 description 3
- 229920001577 copolymer Polymers 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/08—Cleaning containers, e.g. tanks
- B08B9/093—Cleaning containers, e.g. tanks by the force of jets or sprays
- B08B9/0936—Cleaning containers, e.g. tanks by the force of jets or sprays using rotating jets
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cleaning By Liquid Or Steam (AREA)
Abstract
The invention relates to an automatic water jet cleaning machine for the inner wall of a low-pressure separation tank of an EVA (ethylene vinyl acetate) device, which comprises a 360-degree rotating mechanism, a vertical lifting mechanism, a cleaning arm opening and closing mechanism and a spray head executing mechanism; the 360-degree rotating mechanism comprises a fixed frame and a first motor; the fixing frame top surface is provided with the supporting disk, supporting disk top surface fixedly connected with toothed disc, first motor is fixed to be set up on the supporting disk top surface, first motor output shaft is provided with first gear, first gear with the meshing of toothed disc. According to the automatic water jet cleaning machine for the inner wall of the low-pressure separation tank of the EVA device, under the condition that constructors do not enter the tank, the 360-degree rotating mechanism, the vertical lifting mechanism and the cleaning arm opening and closing mechanism are used for respectively completing rotating, lifting and opening and closing actions, the spray head can rotate to spray, high-pressure water jet cleaning is carried out on the inner wall of the tank, the universality is high, the cleaning is thorough, the efficiency is high, and the labor is saved.
Description
Technical Field
The invention relates to the technical field of high-pressure water cleaning, in particular to an automatic water jet cleaning machine for the inner wall of a low-pressure separation tank of an EVA (ethylene vinyl acetate) device.
Background
EVA is ethylene-vinyl acetate copolymer, and the low pressure knockout drum of EVA device will have some copolymer to bond at the inner wall of jar in process of production, need regularly to switch the washing to the low pressure knockout drum.
The inner wall structure of the low-pressure separation tank of the EVA device is divided into a plurality of sections, and the inner wall structure comprises an upper straight cylinder tank wall, a middle conical tank wall and a lower discharge port flange inner wall; when cleaning, the problem of complex and changeable upper and lower structure is faced.
In addition, the copolymer of EVA device low pressure knockout drum inner wall bonds comparatively toughness, and the clearance degree of difficulty is big, and it is interior high pressure water washing that constructor gets into to carry out in the jar at present, and this kind of operation mode has great safety risk and cleaning efficiency low, the washing scheduling problem not thorough.
Therefore, the automatic water jet cleaning machine for the inner wall of the low-pressure separating tank of the EVA device is designed to solve the problems.
Disclosure of Invention
The invention provides an automatic water jet cleaning machine for the inner wall of a low-pressure separating tank of an EVA (ethylene vinyl acetate) device, which overcomes the defects and comprises a 360-degree rotating mechanism, a vertical lifting mechanism, a cleaning arm opening and closing mechanism and a spray head executing mechanism;
the 360-degree rotating mechanism comprises a fixed frame and a first pneumatic motor; the top surface of the fixed frame is provided with a supporting disc, the top surface of the supporting disc is fixedly connected with a gear disc, the first pneumatic motor is fixedly arranged on the top surface of the supporting disc, the output shaft of the first pneumatic motor is provided with a first gear, and the first gear is meshed with the gear disc; the fixing frame is supported on the top surface of the low-pressure separating tank of the EVA device;
the vertical lifting mechanism comprises a square tubular supporting seat, a second pneumatic motor and a third pneumatic motor; the supporting seat is fixedly arranged on the top surface of the gear disc; a first long hole in a vertical strip shape is formed in one side of the supporting seat, the inside and the outside of the supporting seat are communicated, a long square tubular large arm is sleeved in the supporting seat, a first rack is arranged on one side of the large arm, the second pneumatic motor is fixedly arranged on the supporting seat, an output shaft of the second pneumatic motor is provided with a second gear, and the second gear penetrates through the first long hole and then is meshed with the first rack; a long square rod-shaped swing arm is sleeved in the large arm, a vertical strip-shaped second long hole which is communicated with the inside and the outside is formed in one side of the lower end of the swing arm, a second rack is arranged on one side of the swing arm, the third pneumatic motor is fixedly arranged on the lower portion of the large arm, a third gear is arranged on an output shaft of the third pneumatic motor, and the third gear penetrates through the second long hole and then is meshed with the second rack;
the cleaning arm opening and closing mechanism comprises an air cylinder, a first swing rod and a second swing rod, the air cylinder is fixedly arranged at the lower part of the swing arm, an output rod of the air cylinder is connected with a sliding sleeve, and the sliding sleeve is sleeved on the swing arm; the left end and the right end of the sliding sleeve are respectively hinged with a first supporting rod and a second supporting rod, one end of the first swing rod is hinged to one side of the swing arm, the lower end of the first supporting rod is hinged to one side of the first swing rod, and the lower end of the second supporting rod is hinged to the middle of the second swing rod; the cylinder is used for enabling the first supporting rod and the second supporting rod to do up-and-down swinging nodding motion; a first connecting block is fixedly arranged at the free end of the lower part of the first swing rod, and a second connecting block is fixedly arranged at the free end of the lower part of the second swing rod;
the spray head executing mechanism comprises a fourth pneumatic motor, the fourth starting motor is connected with the rotating body through a synchronous belt pulley, an output shaft of the rotating body is connected with the spray head, the spray head executing mechanism is connected onto the first connecting block and the second connecting block through the mounting seat, and the spray head is externally connected with a high-pressure water source.
Particularly, the fixing frame, the supporting disc, the supporting seat, the large arm, the swing arm, the first supporting rod, the second supporting rod, the first swing rod and the second swing rod are made of anodic aluminum oxide alloy.
Particularly, the first gear is sleeved with a first protective cover, the second gear is sleeved with a second protective cover, and the third gear is sleeved with a third protective cover.
Preferably, the spray head is a five-hole special spray head.
The invention has the beneficial effects that:
according to the automatic water jet cleaning machine for the inner wall of the low-pressure separation tank of the EVA device, under the condition that constructors do not enter the tank, the 360-degree rotating mechanism, the vertical lifting mechanism and the cleaning arm opening and closing mechanism are used for respectively completing rotating, lifting and opening and closing actions, the spray head can rotate to spray, high-pressure water jet cleaning is carried out on the inner wall of the tank, the universality is high, the cleaning is thorough, the efficiency is high, and the labor is saved.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a perspective view of the upper portion of the present invention;
FIG. 4 is a perspective view of a portion of the present invention;
FIG. 5 is a perspective view of the lower portion of the present invention;
fig. 6 is a perspective view of the connection between the nozzle actuator and the second swing link 14;
FIG. 7 is a perspective view of the spray head actuator;
FIG. 8 is a use state diagram of the present invention;
FIG. 9 is a second use state diagram of the present invention;
wherein:
1-a fixed mount; 2-a support disk; 3-a support seat; 31-a gear disc; 4-big arm; 41-a first rack; 5-swinging arm; 51-a second rack; 6-a first pneumatic motor; 61-a first gear; 7-a second pneumatic motor; 71-a second gear; 8-a third pneumatic motor; 81-third gear; 9-a sliding sleeve; 10-cylinder; 11-a first support bar; 12-a second support bar; 13-a first swing link; 14-a second swing link; 15-a first connection block; 16-a second connecting block; 17-EVA device low pressure knockout drum; 18-a mounting seat; 19-a fourth pneumatic motor; 20-a rotating body; 21-spray head.
Detailed Description
The following detailed description will be made in conjunction with embodiments of the present invention with reference to the accompanying drawings.
The automatic water jet cleaning machine for the inner wall of the low-pressure separating tank of the EVA device comprises a 360-degree rotating mechanism, a vertical lifting mechanism, a cleaning arm opening and closing mechanism and a spray head executing mechanism;
the 360-degree rotating mechanism comprises a fixed frame 1 and a first pneumatic motor 6; a supporting disc 2 is arranged on the top surface of the fixed frame 1, a gear disc 31 is fixedly connected to the top surface of the supporting disc 2, the first pneumatic motor 6 is fixedly arranged on the top surface of the supporting disc 2, a first gear 61 is arranged on an output shaft of the first pneumatic motor 6, and the first gear 61 is meshed with the gear disc 31; the fixed frame 1 is supported on the top surface of a low-pressure separation tank 17 of the EVA device;
the vertical lifting mechanism comprises a square tubular supporting seat 3, a second pneumatic motor 7 and a third pneumatic motor 8; the supporting seat 3 is fixedly arranged on the top surface of the gear disc 31; a first long hole in a vertical strip shape is formed in one side of the supporting seat 3, the supporting seat 3 is internally sleeved with a long square tubular large arm 4, a first rack 41 is arranged on one side of the large arm 4, the second pneumatic motor 7 is fixedly arranged on the supporting seat 3, an output shaft of the second pneumatic motor 7 is provided with a second gear 71, and the second gear 71 penetrates through the first long hole and then is meshed with the first rack 41; a long square rod-shaped swing arm 5 is sleeved in the large arm 4, a vertical strip-shaped second long hole which is through from inside to outside is formed in one side of the lower end of the swing arm 4, a second rack 51 is arranged on one side of the swing arm 5, the third pneumatic motor 8 is fixedly arranged on the lower portion of the large arm 4, a third gear 81 is arranged on an output shaft of the third pneumatic motor 8, and the third gear 81 penetrates through the second long hole and then is meshed with the second rack 51;
the cleaning arm opening and closing mechanism comprises an air cylinder 10, a first swing rod 13 and a second swing rod 14, the air cylinder 10 is fixedly arranged at the lower part of the swing arm 5, an output rod of the air cylinder 10 is connected with a sliding sleeve 9, and the sliding sleeve 9 is sleeved on the swing arm 5; the left end and the right end of the sliding sleeve 9 are respectively hinged with a first supporting rod 11 and a second supporting rod 12, one end of a first swing rod 13 is hinged on one side of the swing arm 5, the lower end of the first supporting rod 11 is hinged on one side of the first swing rod 13, and the lower end of the second supporting rod 12 is hinged in the middle of a second swing rod 14; the cylinder 10 is used for enabling the first support rod 11 and the second support rod 12 to do up-and-down swinging nodding motion; a first connecting block 15 is fixedly arranged at the free end of the lower part of the first swing rod 13, and a second connecting block 16 is fixedly arranged at the free end of the lower part of the second swing rod 14;
the spray head executing mechanisms comprise a fourth pneumatic motor 19, the fourth starting motor is connected with a rotating body 20 through a synchronous belt pulley, an output shaft of the rotating body 20 is connected with a spray head 21, the two spray head executing mechanisms are connected onto the first connecting block 15 and the second connecting block 16 through a mounting seat 18, and the spray head 21 is externally connected with a high-pressure water source.
When in use, the spray head actuating mechanism, the cleaning arm opening and closing mechanism and the vertical lifting mechanism go deep into the low-pressure separating tank 17 of the EVA device.
Particularly, the fixed frame 1, the supporting disc 2, the supporting seat 3, the large arm 4, the swing arm 5, the first supporting rod 11, the second supporting rod 12, the first swing rod 13 and the second swing rod 14 are made of anodized aluminum alloy.
Specifically, a first protective cover is sleeved outside the first gear 61, a second protective cover is sleeved outside the second gear 71, and a third protective cover is sleeved outside the third gear 81.
Preferably, the spray head 21 is a five-hole special spray head.
The using method comprises the following steps:
as shown in fig. 8 or 9, the automatic water jet cleaning machine for the inner wall of the low-pressure separating tank of the EVA device can clean the low-pressure separating tank 17 of the EVA device under two working conditions, i.e., with or without a sealing cover, and when in use, the spray head actuator, the cleaning arm opening and closing mechanism and the vertical lifting mechanism are inserted into the low-pressure separating tank 17 of the EVA device; the fixed frame 1 is supported on the top surface of a low-pressure separation tank 17 of the EVA device;
the first pneumatic motor 6 drives the first gear 61 to rotate, the first gear 61 is meshed with the gear disc 31, and the gear disc 31 drives the supporting seat 3 to rotate, so that 360-degree rotation of the device is realized;
the second pneumatic motor 7 drives the second gear 71 to rotate, the second gear 71 is meshed with the first rack 41, the second gear 71 rotates to enable the first rack 41 to move up and down, and therefore the large arm 4 moves up and down;
the third pneumatic motor 8 drives the third gear 81 to rotate, the third gear 81 is meshed with the second rack 51, and the third gear 81 rotates to enable the second rack 51 to move up and down, so that the swing arm 5 moves up and down;
the cylinder 10 pushes the sliding sleeve 9 to move up and down, the sliding sleeve 9 drives the first supporting rod 11 and the second supporting rod 12 to respectively nod along with the up-and-down swinging of the articulated shaft, the first supporting rod 11 drives the first oscillating rod 13 to nod along with the up-and-down swinging of the articulated shaft, and the second supporting rod 12 drives the second oscillating rod 14 to nod along with the up-and-down swinging of the articulated shaft; the first swing rod 13 drives the first connecting block 15 to swing up and down, and the second swing rod 14 drives the second connecting block 16 to swing up and down;
the fourth pneumatic motor 19 works to drive the rotating body 20 to rotate through the synchronous belt pulley, and the output shaft of the rotating body 20 drives the spray head 21 to rotate; the spray head 21 is externally connected with a high-pressure water source, so that the water source can be opened to spray at any time. Under the action of high-pressure water jet, wedge-shaped stripping, shearing composite damage, jet impact and other acting forces are formed on the surface of the dirt, so that the dirt and a matrix generate pressure difference, and the aim of removing the polymer on the inner wall of the low-pressure separation tank is fulfilled. The system has strong universality and is suitable for the limited space equipment with similar structure.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (4)
- The automatic water jet cleaning machine for the inner wall of the low-pressure separation tank of the EVA device comprises a 360-degree rotating mechanism, a vertical lifting mechanism, a cleaning arm opening and closing mechanism and a spray head executing mechanism;the 360-degree rotating mechanism comprises a fixed frame (1) and a first pneumatic motor (6); a supporting disc (2) is arranged on the top surface of the fixing frame (1), a gear disc (31) is fixedly connected to the top surface of the supporting disc (2), the first pneumatic motor (6) is fixedly arranged on the top surface of the supporting disc (2), a first gear (61) is arranged on an output shaft of the first pneumatic motor (6), and the first gear (61) is meshed with the gear disc (31); the fixing frame (1) is supported on the top surface of a low-pressure separating tank (17) of the EVA device;the vertical lifting mechanism comprises a square tubular supporting seat (3), a second pneumatic motor (7) and a third pneumatic motor (8); the supporting seat (3) is fixedly arranged on the top surface of the gear disc (31); a first vertical strip-shaped long hole which is through from inside to outside is formed in one side of the supporting seat (3), a long-strip-shaped large arm (4) in a square tube shape is sleeved in the supporting seat (3), a first rack (41) is arranged on one side of the large arm (4), the second pneumatic motor (7) is fixedly arranged on the supporting seat (3), a second gear (71) is arranged on an output shaft of the second pneumatic motor (7), and the second gear (71) penetrates through the first long hole and then is meshed with the first rack (41); a long square rod-shaped swing arm (5) is sleeved in the large arm (4), a vertical strip-shaped second long hole which is through from inside to outside is formed in one side of the lower end of the swing arm (4), a second rack (51) is arranged on one side of the swing arm (5), the third pneumatic motor (8) is fixedly arranged on the lower portion of the large arm (4), a third gear (81) is arranged on an output shaft of the third pneumatic motor (8), and the third gear (81) penetrates through the second long hole and then is meshed with the second rack (51);the cleaning arm opening and closing mechanism comprises an air cylinder (10), a first swing rod (13) and a second swing rod (14), the air cylinder (10) is fixedly arranged at the lower part of the swing arm (5), an output rod of the air cylinder (10) is connected with a sliding sleeve (9), and the sliding sleeve (9) is sleeved on the swing arm (5); the left end and the right end of the sliding sleeve (9) are respectively hinged with a first supporting rod (11) and a second supporting rod (12), one end of the first swing rod (13) is hinged to one side of the swing arm (5), the lower end of the first supporting rod (11) is hinged to one side of the first swing rod (13), and the lower end of the second supporting rod (12) is hinged to the middle of the second swing rod (14); the cylinder (10) is used for enabling the first supporting rod (11) and the second supporting rod (12) to do up-and-down swinging nodding motion; a first connecting block (15) is fixedly arranged at the free end of the lower part of the first swing rod (13), and a second connecting block (16) is fixedly arranged at the free end of the lower part of the second swing rod (14);the sprayer actuating mechanism comprises a fourth pneumatic motor (19), the fourth starting motor is connected with a rotating body (20) through a synchronous belt pulley, an output shaft of the rotating body (20) is connected with a sprayer (21), the sprayer actuating mechanism is connected onto the first connecting block (15) and the second connecting block (16) through a mounting seat (18), and the sprayer (21) is externally connected with a high-pressure water source.
- 2. The EVA device low-pressure separation tank inner wall water jet automatic cleaning machine of claim 1, wherein the fixing frame (1), the supporting disc (2), the supporting seat (3), the large arm (4), the swing arm (5), the first supporting rod (11), the second supporting rod (12), the first swing rod (13) and the second swing rod (14) are made of anodic aluminum oxide alloy.
- 3. The EVA device low-pressure separation tank inner wall water jet automatic cleaning machine of claim 2, wherein the first gear (61) is sleeved with a first protective cover, the second gear (71) is sleeved with a second protective cover, and the third gear (81) is sleeved with a third protective cover.
- 4. The EVA device low-pressure separation tank inner wall water jet automatic cleaning machine according to claim 3, characterized in that the spray head (21) is a five-hole special spray head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011051915.7A CN112246804A (en) | 2020-09-29 | 2020-09-29 | Automatic water jet cleaning machine for inner wall of low-pressure separation tank of EVA (ethylene vinyl acetate) device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011051915.7A CN112246804A (en) | 2020-09-29 | 2020-09-29 | Automatic water jet cleaning machine for inner wall of low-pressure separation tank of EVA (ethylene vinyl acetate) device |
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| Publication Number | Publication Date |
|---|---|
| CN112246804A true CN112246804A (en) | 2021-01-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011051915.7A Pending CN112246804A (en) | 2020-09-29 | 2020-09-29 | Automatic water jet cleaning machine for inner wall of low-pressure separation tank of EVA (ethylene vinyl acetate) device |
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| Country | Link |
|---|---|
| CN (1) | CN112246804A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203356153U (en) * | 2013-07-12 | 2013-12-25 | 广东鼎湖山泉有限公司 | Barrel inner wall cleaning machine |
| CN204107938U (en) * | 2014-09-29 | 2015-01-21 | 滕绍民 | A kind of three-dimensional coordinate cleaning tank car machine |
| CN110625797A (en) * | 2019-10-24 | 2019-12-31 | 富技腾流体科技（天津)有限公司 | High-pressure water cleaning device for concrete mixing tank |
| CN211161071U (en) * | 2019-09-02 | 2020-08-04 | 富技腾流体科技（天津)有限公司 | Adjusting device for high-pressure water cleaning of stirring tank |
| CN214516590U (en) * | 2020-09-29 | 2021-10-29 | 南京普迪科技实业有限公司 | Automatic water jet cleaning machine for inner wall of low-pressure separation tank of EVA (ethylene vinyl acetate) device |
-
2020
- 2020-09-29 CN CN202011051915.7A patent/CN112246804A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203356153U (en) * | 2013-07-12 | 2013-12-25 | 广东鼎湖山泉有限公司 | Barrel inner wall cleaning machine |
| CN204107938U (en) * | 2014-09-29 | 2015-01-21 | 滕绍民 | A kind of three-dimensional coordinate cleaning tank car machine |
| CN211161071U (en) * | 2019-09-02 | 2020-08-04 | 富技腾流体科技（天津)有限公司 | Adjusting device for high-pressure water cleaning of stirring tank |
| CN110625797A (en) * | 2019-10-24 | 2019-12-31 | 富技腾流体科技（天津)有限公司 | High-pressure water cleaning device for concrete mixing tank |
| CN214516590U (en) * | 2020-09-29 | 2021-10-29 | 南京普迪科技实业有限公司 | Automatic water jet cleaning machine for inner wall of low-pressure separation tank of EVA (ethylene vinyl acetate) device |
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