CN220496771U - Coating device for catalyst carrier - Google Patents
Coating device for catalyst carrier Download PDFInfo
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- CN220496771U CN220496771U CN202322361727.XU CN202322361727U CN220496771U CN 220496771 U CN220496771 U CN 220496771U CN 202322361727 U CN202322361727 U CN 202322361727U CN 220496771 U CN220496771 U CN 220496771U
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- coating
- sight glass
- catalyst carrier
- valve
- suction
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- 238000000576 coating method Methods 0.000 title claims abstract description 101
- 239000011248 coating agent Substances 0.000 title claims abstract description 93
- 239000003054 catalyst Substances 0.000 title claims abstract description 49
- 239000002002 slurry Substances 0.000 claims abstract description 38
- 238000000034 method Methods 0.000 claims abstract description 9
- 230000008569 process Effects 0.000 claims abstract description 8
- 239000011521 glass Substances 0.000 claims description 43
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 23
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 23
- 241001330002 Bambuseae Species 0.000 claims description 23
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 23
- 239000011425 bamboo Substances 0.000 claims description 23
- 239000007788 liquid Substances 0.000 claims description 16
- 238000007599 discharging Methods 0.000 claims description 13
- 238000007789 sealing Methods 0.000 claims description 13
- 238000001514 detection method Methods 0.000 claims description 8
- 239000000523 sample Substances 0.000 claims description 7
- 239000007789 gas Substances 0.000 description 7
- 239000002994 raw material Substances 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 229910000510 noble metal Inorganic materials 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000006255 coating slurry Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000010815 organic waste Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 239000010948 rhodium Substances 0.000 description 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000012855 volatile organic compound Substances 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Catalysts (AREA)
Abstract
The utility model relates to the field of coating equipment, in particular to a coating device for a catalyst carrier, wherein the bottom of a coating cavity is connected with a suction buffer tank, a coating suction valve is arranged between the coating cavity and the suction buffer tank, a group of vacuum suction pipes are arranged at the side parts of the suction buffer tank, the end parts of the vacuum suction pipes are provided with vacuum valves, the end parts of the vacuum valves are connected with an external vacuum system, slurry is poured into the coating cavity by a slurry supply assembly, the vacuum suction pipes and the vacuum valves are matched to vacuumize the interior of the suction buffer tank, and the slurry is attached to the catalyst carrier in the transfer process of the slurry from the coating cavity to the suction buffer tank, so that repeatable, automatic and high-reliability catalyst coating without damaging the carrier is realized.
Description
Technical Field
The utility model relates to the field of coating equipment, in particular to a coating device for a catalyst carrier.
Background
The catalyst is used for carrying out catalytic purification treatment on harmful or polluted substances such as CO, unburned hydrocarbons, NOx, carbon particles and the like in tail gas discharged by an engine, and carrying out a series of chemical reactions such as oxidation, reduction and the like to treat the tail gas into carbon dioxide, nitrogen, water vapor and the like which are harmless to human health, wherein the catalyst comprises a carrier, a coating, an auxiliary agent and active ingredients, the catalysis is mainly completed by noble metals coated on the carrier, so the coating completion degree of the catalyst carrier directly influences the purification efficiency of the catalyst, the requirements on the performance and the manufacturing process of the catalyst are improved along with the increasingly stringent requirements on the tail gas discharge, the catalyst carrier on the market is usually a honeycomb porous structure made of ceramic materials, and the inner surface of the honeycomb body is coated with active coatings formed by various components such as collection, active components, or a small amount of noble metals (platinum, palladium or rhodium);
at present, the coating requirement of the catalyst carrier generally uses a partition coating mode, the space of the carrier can be effectively utilized, different active coatings are coated according to the change of tail gas components in the stage of chemical reaction, so that the carrier catalytic performance is stronger in pertinence, the noble metal utilization rate is higher, the consumption of noble metal is saved, but the prior technical scheme is submitted and released more than ten years ago, and the current latest catalyst, especially the catalyst coating technical requirement of the national sixth standard, is not satisfied. For example, patent US2012/0315381A1 Coating Device and Method, which also adopts a Coating cavity (Coating device 122), a Coating valve (Extraction valve 137), a bypass pipe (Riser Tube 127) and a plurality of sensors to detect, the slurry is sent into the Coating cavity by a slurry pump (Delivery Pump for CoatingMedium), the catalyst carrier is placed on a plurality of probes (Sensors for the level 123) in the Coating cavity, the feeding is started after the balloon is clamped, the Coating is stopped after the detection by the sensors (sensor 126a/126b/126c/126 d), the Coating valve is opened to pump away the excessive slurry to complete the Coating process, the Coating process pumped down by the lower feeding belongs to the traditional process of catalyst Coating for decades, and along with the implementation of six tail gas emission standards and industrial volatile organic waste gas treatment standards in China, the automatization requirements, the precision requirements, the reliability requirements and the product performance requirements for catalyst production are all raised to new heights.
Disclosure of Invention
In order to solve the problem that the traditional catalyst coating process belongs to the traditional catalyst coating process for decades under the feeding, along with the implementation of six tail gas emission standards and industrial volatile organic compound waste gas treatment standards in China, the automation requirement, the precision requirement, the reliability requirement and the product performance requirement on the catalyst production are all raised to new heights, and the technology cannot meet the use requirement.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the coating device for the catalyst carrier comprises a coating cavity, the catalyst carrier and a probe sensor arranged on the catalyst carrier, wherein a slurry supply assembly is arranged on the side edge of the coating cavity, the bottom of the coating cavity is connected with a suction buffer tank, a coating suction valve is arranged between the coating cavity and the suction buffer tank, a group of vacuum suction pipes are arranged on the side part of the suction buffer tank, a vacuum valve is arranged at the end part of each vacuum suction pipe, and the end part of each vacuum valve is connected with an external vacuum system;
the slurry supply assembly fills slurry into the coating cavity, the vacuum suction pipe and the vacuum valve are matched to vacuumize the interior of the suction buffer tank, and the slurry is attached to the catalyst carrier in the process of transferring the slurry from the coating cavity to the suction buffer tank.
Preferably, the coating cavity is conical, a feed valve is arranged outside the coating cavity, the end part of the feed valve is connected with a feed flowmeter, the feed end of the feed flowmeter is connected with an external slurry supply system, a carrier lower sealing ring is arranged in the coating cavity, and a carrier upper sealing ring matched with the carrier lower sealing ring is placed on the upper part of the coating cavity to form a catalyst carrier clamping part.
Preferably, a group of constant pressure valves are arranged between the feeding end of the feeding flowmeter and the connecting section of the external slurry supply system.
Preferably, the suction buffer tank bottom side is connected with sight glass section of thick bamboo discharging pipe, and the end connection of sight glass section of thick bamboo discharging pipe is a set of sight glass section of thick bamboo bleeder valve, and the end connection of sight glass section of thick bamboo bleeder valve has the three-way pipe, and sight glass section of thick bamboo feed valve is connected to the one end of three-way pipe, and the other end and the coating intracavity portion intercommunication of sight glass section of thick bamboo feed valve.
Preferably, the other end of the three-way pipe is connected with a sight glass cylinder, the side edge of the sight glass cylinder is provided with a sight glass cylinder scale, and the top of the sight glass cylinder is provided with a liquid level detection sensor.
Preferably, the sight glass cylinder discharging pipe and the feeding valve are arranged in a staggered mode.
Preferably, the sight glass cylinder feed valve adopts a pneumatic model.
Preferably, the bottom end of the suction buffer tank is connected with a group of return valves, and the return valves are connected with an external slurry storage tank through pipelines.
Preferably, a group of vacuum suction pipes are arranged at the side part of the suction buffer tank, a vacuum valve is arranged at the end part of each vacuum suction pipe, and the end part of each vacuum valve is connected with an external vacuum system.
Compared with the prior art, the utility model has the beneficial effects that:
1. according to the utility model, the bottom of the coating cavity is connected with the suction buffer tank, a coating suction valve is arranged between the coating cavity and the suction buffer tank, a group of vacuum suction pipes are arranged at the side parts of the suction buffer tank, the end parts of the vacuum suction pipes are provided with vacuum valves, the end parts of the vacuum valves are connected with an external vacuum system, the slurry supply assembly fills slurry into the coating cavity, the vacuum suction pipes and the vacuum valves are matched to vacuumize the interior of the suction buffer tank, and the slurry is adhered to a catalyst carrier in the process of transferring the slurry from the coating cavity to the suction buffer tank, so that repeatable, automatic and high-reliability catalyst coating without damaging the carrier is realized.
2. According to the utility model, the coating depth in the production process can be observed manually and directly from the outside by utilizing the principle of the liquid communicating vessel, so that the failure of an automatic coating process is avoided, and the quality and the efficiency of the coating of the catalyst carrier are improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive faculty for a person skilled in the art.
Fig. 1 is a schematic perspective view of the present utility model.
Meaning of reference numerals in the drawings: 1. a feed flow meter; 2. a feed valve; 3. a coating chamber; 4. a carrier lower sealing ring; 5. a sealing ring is arranged on the carrier; 6. a catalyst carrier; 7. a probe sensor; 8. a suction buffer tank; 9. coating a suction valve; 10. a feed back valve; 11. a vacuum suction tube; 12. a vacuum valve; 13. a constant pressure valve; 14. a lens barrel; 15. viewing mirror cylinder staff gauge; 16. a liquid level detection sensor; 17. a viewing barrel feed valve; 18. a viewing tube discharge valve; 19. a three-way pipe; 20. and a lens barrel discharging pipe.
Detailed Description
In order to make the application objects, features and advantages of the present application more obvious and understandable, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the embodiments described below are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
Referring to fig. 1, a coating device for a catalyst carrier comprises a coating cavity 3, a probe sensor 7 on the catalyst carrier 6, a carrier lower sealing ring 4 arranged in the coating cavity 3, a carrier upper sealing ring 5 matched with the carrier lower sealing ring 4 arranged on the upper part of the coating cavity 3 to form a carrier clamping part, a slurry supply assembly arranged on the side edge of the coating cavity 3, a suction buffer tank 8 connected with the bottom of the coating cavity 3, and a coating suction valve 9 arranged between the coating cavity 3 and the suction buffer tank 8.
The coating cavity 3 is conical, and the coating cavity 3 outside is provided with feed valve 2, and feed valve 2 end connection has feed flowmeter 1, and feed flowmeter 1's feed end and outside confession thick liquids system connection can be to the coating cavity 3 in injecting thick liquids through feed valve 2, and feed flowmeter 1 can measure the thick liquids of injection, installs a set of constant pressure valve 13 between feed flowmeter 1's feed end and the outside confession thick liquids system linkage segment for the feeding pressure in the balanced inlet pipe.
The suction buffer tank 8 downside is connected with sight glass section of thick bamboo discharging pipe 20, sight glass section of thick bamboo discharging pipe 20 and feed valve 2 dislocation set, avoid mutual interference between the two, the end connection of sight glass section of thick bamboo discharging pipe 20 has a set of sight glass section of thick bamboo discharging valve 18, the end connection of sight glass section of thick bamboo discharging valve 18 has three-way pipe 19, sight glass section of thick bamboo feed valve 17 is connected to the one end of three-way pipe 19, the other end and the coating intracavity 3 internal communication of sight glass section of thick bamboo feed valve 17, sight glass section of thick bamboo feed valve 17 adopts pneumatic model, the other end of three-way pipe 19 is connected with sight glass section of thick bamboo 14, the raw materials in the coating intracavity 3 can enter into sight glass section of thick bamboo 14 through sight glass section of thick bamboo feed valve 17.
The side of the sight glass tube 14 is provided with a sight glass tube scale 15, the liquid level of the raw materials in the sight glass tube 14 can be observed through the sight glass tube scale 15, the top of the sight glass tube 14 is provided with a liquid level detection sensor 16, and the liquid level detection sensor 16 can detect the liquid level in the sight glass tube 14, so that the liquid level in the sight glass tube 14 is obtained.
The bottom end of the suction buffer tank 8 is connected with a group of return valves 10, the return valves 10 are connected with an external slurry storage tank through pipelines, raw materials in the suction buffer tank 8 can be discharged through the return valves 10, and the discharged raw materials can be returned to the raw material storage tank again.
Before the coating starts, the catalyst carrier 6 is put into the coating cavity 3 by a manual or external clamp mechanism, the carrier lower sealing ring 4 is inflated to clamp the catalyst carrier 6, at this time, the carrier upper sealing ring 5 is selectively placed to clamp the carrier according to the process requirement, a plurality of groups of probe sensors 7 are arranged at the upper end of the catalyst carrier 6 in a manual or automatic inserting mode, and the inserting depth is set according to the coating process requirement.
At the beginning of coating, slurry is sent to the inlet end of the feed valve 2 by an external slurry supply system, the slurry supply system can be pumped by a diaphragm pump, a hose pump or other devices, or a push rod piston pushes a cylindrical quantitative cylinder, the slurry in the quantitative cylinder is pushed to the inlet end of the feed valve 2 by the driving pressure of the piston, or more simply, the slurry in a slurry storage tank positioned at a high position flows to the inlet end of the feed valve 2 by gravity, a constant pressure valve at the inlet end is used for balancing the feed pressure in a feed pipe, and the conveying pulsation of the diaphragm pump or the hose pump during operation is eliminated, so that the coating slurry feeding process is smoother, and the detection value of a flowmeter is more accurate.
The coating suction valve 9 is set to a closed state, and when the feed valve 2 is opened, the slurry rapidly fills the coating chamber 3 and fills the inside of the catalyst carrier 6 and the sight glass cylinder 14.
When the probe sensor 7, the feeding flowmeter 1, the liquid level detection sensor 16, the upper end of the artificial visual catalyst carrier 6, or the feeding liquid level of the artificial visual lens barrel 14 are detected to reach a set value of the coating liquid level, the feeding valve 2 is closed, the feeding of the coating cavity 3 is stopped, a group of vacuum suction pipes 11 are arranged on the side part of the suction buffer tank 8, a vacuum valve 12 is arranged at the end part of each vacuum suction pipe 11, the end part of each vacuum valve 12 is connected with an external vacuum system, during operation, the vacuum valve 12 is opened, after the inside of the suction buffer tank 8 is communicated with the vacuum system through the vacuum suction pipes 11 to reach a set vacuum state, the vacuum valve 12 is closed, the inside of the suction buffer tank 8 is maintained in a vacuum state, the suction condition is reached after the feeding process is finished, the coating suction valve 9 is opened, the coating cavity 3 and the inside of the carrier are rapidly pumped to the suction buffer tank 8, part of the slurry is adhered to the inner wall of the carrier, the coating purpose is achieved, meanwhile, the discharging valve 18 of the viewing lens barrel is rapidly opened, the slurry in the viewing lens barrel is rapidly flows to the suction buffer tank 8, the times and the vacuum valve 12 is controlled to be opened, and the vacuum degree is again, and the vacuum suction is carried for multiple times is further, so that the coating weight is more accurate.
The foregoing embodiments are merely for illustrating the technical solution of the present application, and are not limiting thereof although the present application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions.
Claims (8)
1. The coating device for the catalyst carrier comprises a coating cavity (3), a catalyst carrier (6) and a probe sensor (7) arranged on the catalyst carrier (6), and is characterized in that a slurry supply assembly is arranged on the side edge of the coating cavity (3), a suction buffer tank (8) is connected to the bottom of the coating cavity (3), a coating suction valve (9) is arranged between the coating cavity (3) and the suction buffer tank (8), a group of vacuum suction pipes (11) are arranged on the side part of the suction buffer tank (8), a vacuum valve (12) is arranged at the end part of the vacuum suction pipes (11), and the end part of the vacuum valve (12) is connected with an external vacuum system;
the slurry supply assembly fills slurry into the coating cavity (3), the vacuum suction pipe (11) and the vacuum valve (12) are matched to vacuumize the interior of the suction buffer tank (8), and the slurry is attached to the catalyst carrier (6) in the process of transferring the slurry from the coating cavity (3) to the suction buffer tank (8).
2. A coating apparatus for a catalyst carrier according to claim 1, characterized in that: the coating cavity (3) is conical, a feed valve (2) is arranged outside the coating cavity (3), a feed flowmeter (1) is connected to the end portion of the feed valve (2), the feed end of the feed flowmeter (1) is connected with an external slurry supply system, a carrier lower sealing ring (4) is arranged in the coating cavity (3), and a carrier upper sealing ring (5) matched with the carrier lower sealing ring (4) is placed on the upper portion of the coating cavity (3) to form a catalyst carrier (6) clamping portion.
3. A coating apparatus for a catalyst carrier according to claim 2, characterized in that: a group of constant pressure valves (13) are arranged between the feeding end of the feeding flowmeter (1) and the connecting section of the external slurry supply system.
4. A coating apparatus for a catalyst carrier according to claim 1, characterized in that: the suction buffer tank (8) bottom side is connected with sight glass section of thick bamboo discharging pipe (20), and the end connection of sight glass section of thick bamboo discharging pipe (20) is a set of sight glass section of thick bamboo bleeder valve (18), and the end connection of sight glass section of thick bamboo bleeder valve (18) has three-way pipe (19), and sight glass section of thick bamboo feed valve (17) are connected to one end of three-way pipe (19), and the other end and the inside intercommunication of coating chamber (3) of sight glass section of thick bamboo feed valve (17).
5. A coating apparatus for a catalyst carrier according to claim 4, wherein: the other end of the three-way pipe (19) is connected with a sight glass cylinder (14), the side edge of the sight glass cylinder (14) is provided with a sight glass cylinder scale (15), and the top of the sight glass cylinder (14) is provided with a liquid level detection sensor (16).
6. A coating apparatus for a catalyst carrier according to claim 4, wherein: the sight glass cylinder discharging pipe (20) and the feeding valve (2) are arranged in a staggered mode.
7. A coating apparatus for a catalyst carrier according to claim 4, wherein: the sight glass cylinder feed valve (17) adopts a pneumatic model.
8. A coating apparatus for a catalyst carrier according to claim 1, characterized in that: the bottom end of the suction buffer tank (8) is connected with a group of return valves (10), and the return valves (10) are connected with an external slurry storage tank through pipelines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322361727.XU CN220496771U (en) | 2023-08-31 | 2023-08-31 | Coating device for catalyst carrier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322361727.XU CN220496771U (en) | 2023-08-31 | 2023-08-31 | Coating device for catalyst carrier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220496771U true CN220496771U (en) | 2024-02-20 |
Family
ID=89882981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322361727.XU Active CN220496771U (en) | 2023-08-31 | 2023-08-31 | Coating device for catalyst carrier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220496771U (en) |
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2023
- 2023-08-31 CN CN202322361727.XU patent/CN220496771U/en active Active
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