CN220861904U - Coating device - Google Patents
Coating device Download PDFInfo
- Publication number
- CN220861904U CN220861904U CN202322238067.6U CN202322238067U CN220861904U CN 220861904 U CN220861904 U CN 220861904U CN 202322238067 U CN202322238067 U CN 202322238067U CN 220861904 U CN220861904 U CN 220861904U
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- Prior art keywords
- slurry
- coating
- pipeline
- valve
- tank
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- 238000000576 coating method Methods 0.000 title claims abstract description 73
- 239000011248 coating agent Substances 0.000 title claims abstract description 67
- 239000002002 slurry Substances 0.000 claims abstract description 156
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 57
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 33
- 238000003756 stirring Methods 0.000 claims abstract description 19
- 230000001502 supplementing effect Effects 0.000 claims abstract description 14
- 238000002360 preparation method Methods 0.000 claims description 19
- 230000005484 gravity Effects 0.000 claims description 17
- 239000007788 liquid Substances 0.000 claims description 16
- 230000006641 stabilisation Effects 0.000 claims description 11
- 238000011105 stabilization Methods 0.000 claims description 11
- 238000005086 pumping Methods 0.000 claims description 5
- 238000010992 reflux Methods 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 abstract description 22
- 238000007581 slurry coating method Methods 0.000 abstract description 11
- 239000003054 catalyst Substances 0.000 description 16
- 238000009826 distribution Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 239000011247 coating layer Substances 0.000 description 2
- 239000006255 coating slurry Substances 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Coating Apparatus (AREA)
Abstract
The utility model provides a coating device, which comprises a slurry coating unit (3), a slurry stabilizing unit (2), a return pipeline (6), a conveying pipeline (5), a water supplementing pipeline (7) and a control unit, wherein the slurry stabilizing unit is connected with the return pipeline; the slurry stabilizing unit (2) is used for feeding the slurry coating equipment (3); the slurry stabilizing unit (2) comprises a slurry stabilizing tank (22); the slurry stabilizing tank (22) is provided with a second stirring device (21); the water supplementing pipeline (7) is communicated with the slurry stabilizing tank (22); the slurry stabilizing tank (22) is communicated with the slurry coating equipment (3) through the conveying pipeline (5), and the slurry coating equipment (3) is communicated with the slurry stabilizing tank (22) through the return pipeline (6). The coating device can monitor and control the solid content of the slurry, which has important significance for forming uniform coating and improving the quality and performance of the coating in the coating process.
Description
Technical Field
The utility model relates to the field of catalyst preparation, in particular to a coating device.
Background
In the field of coating devices, the solids content of the slurry is a critical parameter in the coating process, directly affecting the quality and performance of the coating. With the improvement of the emission standard of motor vehicle exhaust, the market has put higher demands on the performance of motor vehicle exhaust catalysts. In order to ensure a uniform coating after the honeycomb carrier is coated, the solid content of the slurry is intended to remain uniform and stable during the catalyst coating process. However, in the coating process, besides the catalyst carrier can absorb excessive moisture, as a certain amount of moisture can be taken away by air in the process of vacuumizing the excessive slurry, the solid content of the slurry is continuously increased along with the coating, so that the coating amount of the coating is continuously increased, the coating becomes thicker, the backpressure of the prepared catalyst is increased, the qualification rate of the product is reduced, and the cost is increased. Therefore, achieving uniform stabilization of the slurry solids content is an important issue to be addressed in the design of coating apparatus.
Disclosure of utility model
In view of the above-mentioned drawbacks of the prior art, an object of the present utility model is to provide a coating apparatus for solving the problem of unstable solid content of slurry during coating in the prior art.
To achieve the above and other related objects, the present utility model provides a coating apparatus.
The coating device comprises a slurry coating unit, a slurry stabilizing unit, a return pipeline, a conveying pipeline, a water supplementing pipeline and a control unit; the slurry stabilizing unit is used for feeding the coating equipment; the slurry stabilizing unit comprises a slurry stabilizing tank; the slurry stabilizing tank is provided with second stirring equipment; the water supplementing pipeline is communicated with the slurry stabilizing tank; the slurry stabilizing tank is communicated with the slurry coating unit through the conveying pipeline, and the slurry coating equipment is communicated with the slurry stabilizing tank through the return pipeline; the control unit is in signal connection with at least one selected from the slurry stabilizing unit, the conveying pipeline, the return pipeline and the water supplementing pipeline.
In one embodiment, the vacuum pump further comprises a vacuum pumping device; the vacuumizing equipment is communicated with the return pipeline through a branch pipeline.
In one embodiment, the vacuum pumping apparatus includes a vacuum tank that communicates with the slurry stabilizing tank after communicating with a return line through the branch line.
In one embodiment, the branch pipe is provided with a return valve.
In one embodiment, the return line is provided with a discharge valve, a return valve and/or a circulation pump.
In one embodiment, the conveying pipeline is further provided with a feed pump and/or a feed valve.
In one embodiment, the conveying pipeline is provided with an on-line specific gravity tester.
In one embodiment, the water supplementing pipeline is further provided with a water inlet valve.
In one embodiment, the slurry stabilization tank is further provided with a lowest liquid level valve and a highest liquid level valve.
In one embodiment, the coating device further comprises a slurry preparation unit, provided upstream of the slurry stabilization unit; the slurry preparation unit comprises a slurry preparation tank and first stirring equipment.
In one embodiment, the slurry preparation unit and the slurry stabilization unit are communicated through a first pipeline.
In one embodiment, the first pipeline is provided with a discharge pump and/or a slurry tank discharge valve.
In one embodiment, the control unit is in signal connection with at least one selected from the group consisting of an on-line specific gravity tester, a discharge valve, a return valve, a circulation pump, a feed valve, a minimum level valve, a maximum level valve, a discharge pump, and a slurry tank discharge valve.
As described above, the coating apparatus of the present utility model has the following advantageous effects:
1. The utility model provides a coating device which comprises a slurry stabilizing unit, can monitor and control the solid content of slurry in real time, has important significance for improving the stability of the solid content of the slurry, can avoid the fluctuation of the solid content caused by the change of the components of the slurry, and has important significance for forming a uniform coating in the coating process and improving the quality and the product performance of the coating; the production efficiency can be improved, the cost can be reduced, and the requirements of the market on the production efficiency and the economic benefit can be met;
2. And the supply and recovery modes of the slurry are improved, the redundant slurry is effectively treated, and the resource waste is avoided.
Drawings
Fig. 1 shows a schematic view of a coating apparatus according to the present utility model.
Description of the reference numerals
Detailed Description
Further advantages and effects of the present utility model will become apparent to those skilled in the art from the disclosure of the present utility model, which is described by the following specific examples.
Please refer to fig. 1. It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the utility model to the extent that it can be practiced, since modifications, changes in the proportions, or otherwise, used in the practice of the utility model, are not intended to be critical to the essential characteristics of the utility model, but are intended to fall within the spirit and scope of the utility model. Also, the terms such as "upper," "lower," "left," "right," "middle," and "a" and the like recited in the present specification are merely for descriptive purposes and are not intended to limit the scope of the utility model, but are intended to provide relative positional changes or modifications without materially altering the technical context in which the utility model may be practiced.
As shown in fig. 1, the present utility model provides a coating apparatus, which comprises a slurry coating unit 3, and further comprises a slurry stabilizing unit 2, a return pipeline 6, a conveying pipeline 5, a water supplementing pipeline 7 and a control unit; the slurry stabilization unit 2 is used for feeding the coating device 3; the slurry stabilizing unit 2 includes a slurry stabilizing tank 22; the slurry stabilizing tank 22 is provided with a second stirring device 21; the water supplementing pipeline 7 is communicated with the slurry stabilizing tank 22; the slurry stabilizing tank 22 is communicated with the slurry coating device 3 through the conveying pipeline 5 to convey slurry to the slurry coating device 3, and the slurry coating device 3 is communicated with the slurry stabilizing tank 22 through the return pipeline 6 to return the slurry to the slurry stabilizing tank 22; the control unit is in signal connection with at least one selected from the slurry stabilizing unit 2, the delivery line 5, the return line 6 and the water replenishment line 7.
In the above embodiment, the slurry stabilizing unit 2 controls the solid content of the slurry by water-replenishing mixing of the slurry in the stabilizing tank 22, which has an important meaning for improving the stability of the solid content of the slurry, and can avoid fluctuation of the solid content caused by change of the water content of the slurry, which has an important meaning for forming a uniform coating layer in the coating process, improving the quality of the coating layer and the performance of the product, and can also improve the production efficiency and reduce the cost, thereby meeting the demands of the market for the production efficiency and the economic benefit.
In the specific embodiment shown in fig. 1, a vacuum-pumping device 8 is also included; the evacuation device 8 communicates with the return line 6 via a branch line 9.
In a more specific embodiment, the evacuation device 8 comprises a vacuum tank which communicates with the slurry stabilization tank 22 after communicating with the return line 6 via a branch line 9. The vacuum tank serves to store slurry collected by the vacuum apparatus 8.
The vacuuming device 8 is used for collecting redundant slurry in the pore channels of the catalyst carrier after coating. The vacuumizing device 8 can be set with vacuumizing pressure and vacuumizing time according to the property of the coating slurry of the catalyst and the coating amount requirement, and after the coating of the coating device 3 is finished, the catalyst carrier is placed on the vacuumizing device 8 for vacuumizing, and the extracted slurry is stored in the vacuumizing device 8. In the above embodiment, the coating apparatus 3 is used for coating the slurry on the surface of the catalyst support, and specifically, the coating apparatus 3 may employ a sizing machine.
In the specific embodiment shown in fig. 1, the branch pipe 9 is provided with a return valve 91.
In the specific embodiment shown in fig. 1, the return line 6 is provided with a discharge valve 61 and/or a circulation pump 62.
In the above embodiment, the return line 6 has the following function: (1) The slurry pumped out from the catalyst carrier by the vacuumizing device 8 is conveyed back to the slurry stabilizing tank 22 through a return pipeline for recycling; (2) If the solid content of the slurry is detected to be too high, the slurry in the coating equipment 3 is conveyed back to the slurry stabilizing tank 22 through the return pipeline 6 for dilution; (3) At the end of the coating, the slurry remaining in the coating apparatus 3 is conveyed back into the slurry stabilizing tank 22 via the return line 6.
In the specific embodiment shown in fig. 1, the conveying pipeline 5 is further provided with a feed pump 51 and/or a feed valve 53.
In the specific embodiment shown in fig. 1, the conveying pipeline 5 is provided with an on-line specific gravity tester 52. For monitoring in real time the solids content of the slurry in the transfer line 5. The water supplementing pipeline 7 is also provided with a water inlet valve 71 for controlling water supplementing quantity.
In one embodiment, when the online specific gravity tester 52 detects that the solid content of the slurry in the conveying pipeline 5 exceeds the allowable range, the online specific gravity tester 52 feeds back information to the control unit, and the control unit feeds back a signal to the water inlet valve 71 to open the water inlet valve, so as to supplement water for diluting the slurry; when the on-line specific gravity tester 52 detects that the solid content of the slurry in the conveying pipeline 5 is within the allowable range, the on-line specific gravity tester 52 feeds back information to the control unit, and the control unit feeds back a signal to the water inlet valve 71 to close the water inlet valve, so that the water replenishing dilution of the slurry is stopped.
In another embodiment, when the online specific gravity tester 52 detects that the solid content of the slurry in the conveying pipeline 5 is too high, information is fed back to the control unit, the control unit controls the water inlet valve 71, the discharge valve 61 and the circulating pump 62 to be opened, water in the water supplementing pipeline 7 enters the slurry stabilizing tank 22 to dilute the slurry, meanwhile, the slurry in the coating equipment 3 flows back into the slurry stabilizing tank 22 through the return pipeline 6, the slurry circulates between the conveying pipeline 5 and the return pipeline 6 until the online specific gravity tester 52 detects that the solid content of the slurry in the conveying pipeline 5 is within an allowable range, the online specific gravity tester 52 feeds back the information to the control unit, and the control unit controls the water inlet valve 71, the discharge valve 61 and the circulating pump 62 to be closed.
In a more specific embodiment, the second stirring device 21 comprises a stirring motor and a stirring paddle. The function of the second stirring device 21 is to maintain the slurry in the slurry stabilizing tank 22 uniform and stable.
In the specific embodiment shown in fig. 1, the slurry stabilizing tank 22 is further provided with a highest level valve 221 and a lowest level valve 222. The highest 221 and lowest 222 level valves are preferably tuning fork level switches.
In the above embodiment, when the liquid level of the slurry stabilizing tank 22 is reduced to be out of contact with the lowest liquid level valve 222, the lowest liquid level valve 222 feeds back information to the control unit, and the control unit controls the discharge pump 41 and the slurry distribution tank discharge valve 42 to be opened, so that the slurry is conveyed from the slurry distribution tank 12 to the slurry stabilizing tank 22; when the liquid level of the slurry rises to contact the highest liquid level valve 221, the highest liquid level valve 221 feeds back information to the control unit, and the control unit controls the discharge pump 41 and the slurry preparation tank discharge valve 42 to be closed, so that the slurry stops being conveyed.
In the specific embodiment shown in fig. 1, the coating device further comprises a slurry preparation unit 1; the slurry preparation unit 1 is arranged at the upstream of the slurry stabilization unit 2; the slurry preparation unit 1 comprises a first stirring device 11 and a slurry preparation tank 12.
In the above embodiment, the slurry preparation unit 1 functions to prepare slurry, and the first stirring device 11 functions to maintain uniformity and stability of the slurry in the slurry preparation tank 12.
In a more specific embodiment, the first stirring device 11 comprises a stirring motor and a stirring paddle.
In the specific embodiment shown in fig. 1, the slurry preparation tank 12 and the slurry stabilization tank 22 are further connected by a first pipeline 4, and the first pipeline 4 is connected with each other.
In a more specific embodiment shown in fig. 1, the first pipeline 4 is provided with a discharge pump 41 and/or a slurry tank discharge valve 42.
In a specific embodiment, the control unit is in signal connection with at least one selected from the group consisting of an on-line specific gravity tester 52, a discharge valve 61, a circulation pump 62, a return valve 91, a feed pump 51, a feed valve 53, a feed valve 71, a minimum level valve 222, a maximum level valve 221, a discharge pump 41 and a vat discharge valve 42. The control unit is used for controlling the whole coating device to realize automatic production.
The more specific coating apparatus shown in fig. 1 includes the following steps in coating the catalyst carrier:
1) Adding the prepared slurry into a slurry preparation tank 12, and continuously stirring by adopting first stirring equipment 11 to enable the slurry to be in a stable and uniform state;
2) The control unit controls the discharge pump 41 and the slurry distribution tank discharge valve 42 on the first pipeline 4 to be opened, and the slurry in the slurry distribution tank 12 is conveyed into the slurry stabilizing tank 22; continuously stirring by adopting second stirring equipment 21 to ensure that the slurry is in a stable and uniform state;
3) According to the size of the catalyst carrier to be coated, a placement tool suitable for the size of the catalyst carrier is arranged on the coating equipment 3, after the catalyst carrier is placed, a control unit controls a feed pump 51 and a feed valve 53 on a conveying pipeline 5 to be opened, and slurry is conveyed from a slurry stabilizing tank 22 to the coating equipment 3 to start coating; after the coating is finished, the catalyst carrier is moved to a vacuumizing device 8 for vacuumizing, vacuumizing pressure and vacuumizing time are set according to the property of the prepared coating slurry of the catalyst and the coating quantity requirement, and the extracted slurry is stored in a vacuum tank;
4) After the slurry pumping is finished, the control unit controls the discharge valve 61, the circulating pump 62 and the reflux valve 91 in the reflux pipeline 6 and the branch pipeline 9 to be opened, and the slurry in the coating equipment 3 and the vacuum tank is refluxed to the slurry stabilizing tank 22; the surplus slurry is recycled, so that the waste of resources is avoided;
5) If the online specific gravity tester 52 detects that the solid content of the slurry in the conveying pipeline 5 exceeds the allowable range during coating, the online specific gravity tester 52 feeds back information to the control unit, the control unit controls the water inlet valve 71, the discharge valve 61 and the circulating pump 62 to be opened, so that water in the water supplementing pipeline 7 enters the slurry stabilizing tank 22 to dilute the slurry, meanwhile, the slurry in the coating equipment 3 flows back to the slurry stabilizing tank 22 through the return pipeline 6, the slurry circulates between the conveying pipeline 5 and the return pipeline 6 until the online specific gravity tester 52 detects that the solid content of the slurry in the conveying pipeline 5 is in the allowable range, the online specific gravity tester 52 feeds back information to the control unit, and the control unit controls the water inlet valve 71, the discharge valve 61 and the circulating pump 62 to be closed;
The solid content of the slurry can be detected in real time, and the solid content of the slurry can be controlled within an allowable range;
6) If the liquid level of the slurry stabilizing tank 22 is reduced to be not contacted with the lowest liquid level valve 222 during coating, the lowest liquid level valve 222 feeds information back to the control unit, and the control unit controls the discharge pump 41 and the slurry distributing tank discharge valve 42 on the first pipeline 4 to be opened, so that the slurry is conveyed from the slurry distributing tank 12 to the slurry stabilizing tank 22; when the liquid level of the slurry rises to contact the highest liquid level valve 221, the highest liquid level valve 221 feeds information back to the control unit, and the control unit controls the discharge pump 41 and the slurry distribution tank discharge valve 42 to be closed, so that the slurry stops being conveyed.
The above embodiments are merely illustrative of the principles of the present utility model and its effectiveness, and are not intended to limit the utility model. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the utility model. Accordingly, it is intended that all equivalent modifications and variations of the utility model be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
Claims (10)
1. A coating device comprising a coating apparatus (3), characterized in that the coating device further comprises a slurry stabilizing unit (2), a return line (6), a delivery line (5), a water replenishment line (7) and a control unit;
the slurry stabilizing unit (2) is used for feeding the coating equipment (3); the slurry stabilizing unit (2) comprises a slurry stabilizing tank (22); the slurry stabilizing tank (22) is provided with a second stirring device (21);
The water supplementing pipeline (7) is communicated with the slurry stabilizing tank (22);
The slurry stabilizing tank (22) is communicated with the coating equipment (3) through the conveying pipeline (5), and the coating equipment (3) is communicated with the slurry stabilizing tank (22) through the return pipeline (6);
The control unit is in signal connection with at least one selected from the group consisting of the slurry stabilizing unit (2), the conveying pipeline (5), the return pipeline (6) and the water supplementing pipeline (7).
2. Coating apparatus according to claim 1, further comprising a vacuum-pumping device (8); the vacuumizing device (8) is communicated with the return pipeline (6) through a branch pipeline (9).
3. Coating apparatus according to claim 2, characterized in that the evacuation device (8) comprises a vacuum tank which communicates with the slurry stabilization tank (22) after communicating with the return line (6) via the branch line (9);
and/or the branch pipeline (9) is provided with a reflux valve (91).
4. Coating device according to claim 1, characterized in that the return line (6) is provided with a discharge valve (61) and/or a circulation pump (62).
5. Coating device according to claim 1, characterized in that the conveying line (5) is further provided with a feed pump (51) and/or a feed valve (53);
And/or an on-line specific gravity tester (52) is arranged on the conveying pipeline (5).
6. The coating device according to claim 1, characterized in that the water replenishment pipeline (7) is further provided with a water inlet valve (71); and/or the slurry stabilizing tank (22) is also provided with a lowest liquid level valve (222) and a highest liquid level valve (221).
7. The coating device according to claim 1, further comprising a slurry preparation unit (1); the slurry preparation unit (1) is arranged at the upstream of the slurry stabilization unit (2); the slurry preparation unit (1) comprises a slurry preparation tank (12) and a first stirring device (11).
8. The coating device according to claim 7, further comprising a first conduit (4), wherein the slurry preparation unit (1) and the slurry stabilization unit (2) are in communication through the first conduit (4).
9. Coating device according to claim 8, characterized in that the first pipe (4) is provided with a discharge pump (41) and/or a vat discharge valve (42).
10. The coating apparatus according to any one of claims 3 to 6 or 9, wherein the control unit is in signal connection with at least one selected from the group consisting of an on-line specific gravity tester (52), a discharge valve (61), a return valve (91), a circulation pump (62), a feed pump (51), a feed valve (53), a feed valve (71), a minimum level valve (222), a maximum level valve (221), a discharge pump (41), and a slurry tank discharge valve (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322238067.6U CN220861904U (en) | 2023-08-18 | 2023-08-18 | Coating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322238067.6U CN220861904U (en) | 2023-08-18 | 2023-08-18 | Coating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220861904U true CN220861904U (en) | 2024-04-30 |
Family
ID=90808101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322238067.6U Active CN220861904U (en) | 2023-08-18 | 2023-08-18 | Coating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220861904U (en) |
-
2023
- 2023-08-18 CN CN202322238067.6U patent/CN220861904U/en active Active
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