CN217797035U

CN217797035U - Coating system for catalyst carrier

Info

Publication number: CN217797035U
Application number: CN202220792618.6U
Authority: CN
Inventors: 华瑞康; 陈春芹
Original assignee: Wuxi Huaneng Technology Co ltd
Current assignee: Wuxi Huaneng Technology Co ltd
Priority date: 2022-04-07
Filing date: 2022-04-07
Publication date: 2022-11-15
Anticipated expiration: 2032-04-07

Abstract

The utility model discloses a coating system for a catalyst carrier, which comprises a turntable, wherein a rotating shaft of the turntable is in driving connection with a cam indexing mechanism, a plurality of stations are arranged at the top end of the turntable, and a feeding device, a negative pressure coating device and a discharging device are sequentially arranged outside the turntable in a surrounding manner; the negative pressure coating device comprises a feeding mechanism, a grouting hopper, a jacking air-extracting mechanism and a suction pipe, wherein the grouting hopper and the suction pipe are respectively positioned at the upper side and the lower side of a station on the rotary table, the grouting hopper is communicated with the feeding mechanism, the jacking air-extracting mechanism is connected with the suction pipe, under the action of the jacking air-extracting mechanism, two ends of the catalyst carrier are respectively in sealing butt joint with the end parts of the grouting hopper and the suction pipe, and one end of the suction pipe, far away from the rotary table, is communicated with the vacuumizing mechanism. The negative pressure coating mode is adopted to coat the slurry on the catalyst carriers quickly, the coating speed is high, the coating thickness is uniform, the performance and the yield of finished products are improved, multiple catalyst carriers can be processed simultaneously through multi-station setting, and the production efficiency is high.

Description

Coating system for catalyst carrier

Technical Field

The utility model relates to a thick liquids coating equipment technical field, concretely relates to coating system for catalyst carrier.

Background

The honeycomb ceramic carrier catalyst is used as a core component of a motor vehicle exhaust purification device and plays a key role in the whole catalytic purification reaction, and the preparation process and the preparation means of the honeycomb ceramic carrier catalyst are directly related to the purification efficiency of the whole purification device. The preparation of ceramic supported catalysts generally requires the coating of a catalytically active slurry on the surface of the support.

The prior manufacturers adopt a manual coating mode, wherein the manual coating mode is that a carrier is completely immersed into slurry, excess materials are blown off by compressed air, the normal pressure coating mode is adopted instead of negative pressure coating, after coating, the peripheral slurry needs to be wiped off by a rag, and then the steps of drying, roasting and the like are carried out to prepare a finished product, and secondary coating can be carried out according to actual requirements.

The above-mentioned manual coating has disadvantages in that: the consistency of the product is poor, the thickness of the coating is uneven, hole blocking sometimes occurs, part of air holes can be sealed in the pore-carrying channels by the slurry, and the coating can be loosened or fall off by the expansion of bubbles when heated in the drying, roasting or using process, so that the performance of the catalyst is influenced. In addition, the manual coating consumes a large amount of catalyst and is high in cost.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that exists among the above-mentioned background art, the utility model provides a coating system for catalyst carrier, it adopts negative pressure coating mode to be fast to catalyst carrier coating thick liquids, and the coating is fast, and the coating thickness is even, has improved off-the-shelf performance and yields, and the setting of multistation can be simultaneously to a plurality of catalyst carriers processing, and production efficiency is high moreover.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a coating system for catalyst carrier, including the carousel, the pivot of carousel is connected with the drive of cam indexing mechanism, the carousel top periphery is radially evenly provided with a plurality of stations that are used for placing catalyst carrier, the carousel outside encircles in proper order and is provided with and is used for loading attachment, negative pressure coating device and unloader;

the negative-pressure coating device comprises a feeding mechanism, a grouting bucket, a jacking air-extracting mechanism and a suction pipe, wherein the grouting bucket and the suction pipe are respectively positioned on the upper side and the lower side of an upper station of the rotary table, the grouting bucket is communicated with the feeding mechanism, the jacking air-extracting mechanism is connected with the suction pipe, under the action of the jacking air-extracting mechanism, two ends of a catalyst carrier are respectively in sealing butt joint with the grouting bucket and the end part of the suction pipe, and one end of the suction pipe, which is far away from the rotary table, is communicated with the vacuum-extracting mechanism.

The further improvement is that a detection device is arranged outside the rotary disc and is positioned between the negative pressure coating device and the blanking device.

The further improvement is that the detection device comprises a backpressure detection device and a pore plugging rate detection device which are arranged in sequence.

Through setting up detection device, can detect the stifled hole rate of the carrier after the coating thick liquids, further detect the adsorption efficiency of carrier, improve the performance and the yields of carrier.

The backpressure detection device is characterized by further comprising a pressurizing machine, a funnel and a pressure measuring device, wherein the pressurizing machine and the pressure measuring device are symmetrically arranged on the upper side and the lower side of a station on the rotary table, the funnel is connected and arranged on the pressurizing machine, the pressure measuring device drives a catalyst carrier located on the station to move upwards, and two ends of the catalyst carrier respectively form a sealing structure with the funnel and the pressure measuring device.

During operation, the pressure measuring device moves upwards, the pressure measuring device and the funnel are matched to support the catalyst carrier and form a sealing structure, constant-pressure gas is provided for the funnel through the pressurizing machine, internal gas pressure is detected through the pressure measuring device, and a backpressure value is detected according to the difference between the upper pressure and the lower pressure of the catalyst carrier.

The improvement lies in that, the stifled hole rate detection device including set up in the light source and the photometric device of the upper and lower both sides of station on the carousel, the photometric device with light source signal connection.

When the device works, the area of a light spot positioned below the catalyst carrier is tested by the light measuring device, so that the hole plugging rate of the catalyst carrier is determined.

The improved structure is characterized in that two weighing devices are further arranged on the outer side of the rotary table and are respectively positioned between the feeding device and the negative pressure coating device as well as between the negative pressure coating device and the detection device.

In a further improvement, the weighing device comprises a camera for photographing the catalyst carrier on the station and a weighing device for weighing the catalyst carrier on the station.

Through setting up two weighing device, before one is used for coating the thick liquids, be used for sweeping the sign indicating number and confirm the product serial number and weigh the record product dead weight to the product, after one is used for coating the thick liquids, be used for sweeping the sign indicating number and confirm whether be same piece of product to carry out the secondary to the carrier after coating the thick liquids and weigh, calculate the weight and the total weight of the thick liquids of coating, whether qualified in order to confirm the product.

The further improvement is that a secondary vacuumizing device is arranged on the outer side of the turntable, is positioned between the negative pressure coating device and the weighing device and is communicated with the vacuumizing mechanism.

The secondary vacuum-pumping device is used for pumping out the residual slurry in the catalyst carrier and penetrating through the internal channel of the catalyst carrier.

The further improvement lies in that a code spraying device is arranged beside the blanking device.

Spraying required marks (such as product detection data, qualified marks or two-dimensional codes) on the processed catalyst carrier through a code spraying device, and then carrying out blanking treatment through a blanking device.

Compared with the prior art, the utility model discloses following beneficial effect has:

in the utility model, through the cooperation of the turntable and the cam dividing machine, a plurality of stations are arranged on the top end of the turntable, and the feeding device, the negative pressure coating device and the blanking device are sequentially arranged outside the turntable in a surrounding manner, so that a plurality of catalyst records can be processed (including the feeding treatment of a catalyst carrier, the coating treatment of catalyst slurry and the blanking treatment of coated slurry) at the same time, and the production efficiency is high; through feed mechanism, grouting fill, jacking air exhaust mechanism and suction tube in the negative pressure coating device, under climbing mechanism's effect, catalyst carrier both ends respectively with grouting fill and the sealed butt joint of suction tube tip, prevent that coating in-process thick liquids from leaking, through the cooperation of feed mechanism and evacuation mechanism, form the negative pressure in catalyst carrier for thick liquids pass through fast and adhere to on the pore wall of catalyst carrier inner bore, the coating is fast, and the coating thickness is even, and the yields is high.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

FIG. 1 is a schematic view of the overall structure of a coating system for a catalyst support according to the present invention;

fig. 2 is a schematic view of the overall structure of the middle negative pressure coating device of the present invention;

fig. 3 is a schematic structural view of the feeding mechanism of the present invention;

fig. 4 is a schematic structural view of the jacking mechanism in the initial state of the present invention;

fig. 5 is a schematic structural view of the middle jacking mechanism of the present invention in a working state;

wherein, the specific reference numbers are: the device comprises a rotary table 1, a station 2, a feeding device 3, a primary weighing device 4, a negative pressure coating device 5, a secondary vacuumizing device 6, a secondary weighing device 7, a backpressure detection device 8, a hole plugging rate detection device 9, a blanking device 10, a feeding mechanism 11, a working frame 12, a servo motor 13, a cylinder body 14, a screw rod 15, a piston plate 16, a slurry supply groove 17, a first control valve 18, a shower head 19, a second control valve 20, a lifting driving device 21, a lifting frame 22, a mounting plate 23, an elastic piece 24, a grouting hopper 25, a second annular sealing ring 26, a jacking mechanism 27, a tooling plate 28, an annular groove 29, a catalyst carrier 30, a suction pipe 31, a first annular sealing ring 32 and a vacuumizing mechanism 33.

Detailed Description

The embodiment of the utility model discloses a coating system for catalyst carrier, as shown in fig. 1, including carousel 1, carousel 1's pivot and cam indexing mechanism drive are connected, 1 top periphery of carousel is radial evenly to be provided with a plurality of stations 2 that are used for placing catalyst carrier 30, be equipped with eight stations 2 on the carousel 1 in this embodiment, every 45 is an graduation, correspond, 1 outside of carousel encircles in proper order and is provided with and is used for loading attachment 3, a weighing device 4, negative pressure coating device 5, secondary evacuating device 6, secondary weighing device 7, backpressure detection device 8, stifled hole rate detection device 9, unloader 10.

The loading device 3 is used for placing the catalyst carriers 30 one by one on the corresponding stations 2, and can adopt a structural component with a loading function in the prior art.

The primary weighing device 4 and the secondary weighing device 7 have the same structure, and include a camera for photographing the catalyst carrier 30 at the station 2 and a weighing device for weighing the catalyst carrier 30 at the station 2. The primary weighing device 4 is used before coating the slurry and used for scanning codes to determine product numbers and weighing and recording product dead weights, the secondary weighing device 7 is used after coating the slurry and used for scanning codes to determine whether the products are the same product or not and weighing carriers coated with the slurry for the second time, and the weight of the coated slurry and the total weight of the products are calculated to determine whether the products are qualified or not.

As shown in fig. 2, the negative pressure coating device 5 includes a feeding mechanism 11, a grouting bucket 25, a jacking mechanism 27 and a suction tube 31, the grouting bucket 25 and the suction tube 31 are respectively located at the upper side and the lower side of a station 2 on a turntable 1, the grouting bucket 25 is communicated with the feeding mechanism 11, one side of the grouting bucket 25 away from the turntable 1 is connected with a mounting plate 23 through an elastic member 24, the mounting plate 23 is connected with a lifting frame 22, the lifting frame 22 is connected with a lifting driving device 21, the lifting driving device 21 drives the lifting frame 22 to move up and down, the jacking mechanism 27 is connected with the suction tube 31, under the action of the jacking mechanism 27, two ends of a catalyst carrier 30 are respectively in sealed butt joint with the ends of the grouting bucket 25 and the suction tube 31, one end of the suction tube 31 away from the turntable 1 and a secondary vacuumizing device 6 are both communicated with a vacuumizing mechanism 33, and the secondary vacuumizing device 6 is used for sucking residual slurry in the catalyst carrier 30 and penetrating through an internal channel thereof.

As shown in fig. 3, the feeding mechanism 11 includes a servo motor 13 and a cylinder 14 installed on the work frame 12, a slurry is contained in the cylinder 14, an output end of the servo motor 13 is connected with a lead screw 15, the other end of the lead screw 15 is connected with a piston plate 16, the servo motor 13 drives the lead screw 15 to rotate, the lead screw 15 drives the piston plate 16 to move back and forth in the cylinder 14 through a lead screw nut, the slurry in the cylinder 14 is pushed to enter a shower head 19, one end of the cylinder 14, far away from the piston plate 16, is connected with a slurry supply groove 17 through a pipeline, a first control valve 18 is installed on the pipeline, one end of the cylinder 14, far away from the piston plate 16, is also connected with the shower head 19 through a hose, the shower head 19 is installed on the lift frame 22, a feed inlet at the top end of the shower head 19 and a slurry filling hopper 25 is arranged right opposite, and a second control valve 20 is installed on the hose. When the device works, the second control valve 20 is closed, the first control valve 18 is opened, the servo motor 13 is started to drive the screw rod 15 to rotate, the piston plate 16 moves along with the piston plate, retreats and contracts and then stops immediately, slurry in the slurry supply groove 17 enters the cylinder body 14, then the first control valve 18 is closed, the second control valve 20 is opened, the servo motor 13 is started again, the servo motor 13 drives the screw rod 15 to rotate, the piston plate 16 moves along with the piston plate to push the slurry in the cylinder body 14 to enter the hose and the shower head 19 in sequence, and the slurry in the shower head 19 enters the catalyst carrier 30 through the grouting hopper 25. Because of servo motor 13 turned angle is controllable, makes piston plate 16 stroke controllable through driving lead screw 15, and piston plate 16 promotes the thick liquid and removes, so control servo motor 13 can make thick liquid conveniently set for the adjustment through the output quantity that cylinder body 14 got into in gondola water faucet 19, and the output quantity can be in the state that is fixed equal at every turn after setting for, avoids too much too little influence the quality of carrier to control the uniformity and the yields of good product.

As shown in fig. 4 and 5, the jacking mechanism 27 can be a structural component having a linear moving function in the prior art, a tool disc 28 is movably embedded on each station 2, the catalyst carrier 30 is movably mounted inside the tool disc 28, an annular groove 29 is formed in the bottom end of the tool disc 28, the end of the suction pipe 31 is movably inserted into the annular groove 29, a first annular sealing ring 32 matched with the annular groove 29 is arranged on the outer side of the end of the suction pipe 31, under the matching action of the annular groove 29 and the first annular sealing ring 32, the butt joint and the sealing connection between the end of the suction pipe 31 and the tool disc 28 are facilitated, when the jacking mechanism 27 is used, the suction pipe 31 is driven to move by the jacking mechanism 27 until the first annular sealing ring 32 on the outer side of the end of the suction pipe 31 is matched and sealed with the annular groove 29 on the bottom end of the tool disc 28, a second annular sealing ring 26 matched with the outer side of the end of the catalyst carrier 30 is arranged on the inner side wall of the discharge end of the grouting bucket 25, and the sealing performance after the end of the catalyst carrier 30 is aligned and the grouting bucket 25 is ensured by arranging the second annular sealing ring 26.

The inner wall of one side of the grouting hopper 25 facing the catalyst carrier 30 is provided with an inclined guide surface, which can guide the end part of the catalyst carrier 30 into the grouting hopper 25, so that the end part of the catalyst carrier 30 and the end part of the grouting hopper 25 can be quickly aligned and sealed, and the inclination angle of the inclined guide surface is 30-45 degrees. The inner wall of the grouting bucket 25 on the side far away from the catalyst carrier 30 is in a conical structure. By the arrangement, the grouting hopper 25 adopts a structure of first taper and second straight line, the outline size of the straight line area is close to the size of the catalyst carrier 30, slurry hanging is reduced, slurry can be uniformly spread on the upper surface of the carrier at the highest speed, and the coated flatness is better; in addition, the grouting hopper 25 adopts a structure with a taper, so that the size of the feeding end of the grouting hopper 25 is not too small, and the problem of slurry splashing is avoided; if the grouting bucket 25 is a straight line, the feeding area is reduced to avoid slurry splashing, so that the slurry cannot completely cover the upper surface of the catalyst carrier 30 at the first time, the slurry needs to creep for waiting for uniform spreading on the upper surface of the catalyst carrier 30, bubbles and slurry seep down more easily during the process, and the coating effect and the coating efficiency are affected.

During operation, through frock dish 28 and the cooperation of carousel 1, inject catalyst carrier 30's position, drive crane 22 and grout fill 25 downstream through lift drive 21, but the distance between quick adjustment grout fill 25 and the catalyst carrier 30, rethread climbing mechanism 27 drives suction tube 31 and removes, with the quick alignment of catalyst carrier 30 both ends respectively with grout fill 25 and suction tube 31 sealed, grout fill 25, catalyst carrier 30, frock dish 28 and suction tube 31 form mutual intercommunication and the structure that seals up each other, prevent that the thick liquid from revealing, promote the suction effect, improve carrier coating quality and production speed.

The vacuum mechanism 33 may be a structural component having a vacuum function in the prior art.

Backpressure detection device 8 includes adding machine, funnel and pressure measurement device, and adding machine and pressure measurement device symmetry set up the upper and lower both sides of station 2 on carousel 1, connect on the adding machine and be equipped with the funnel, and pressure measurement device drives the catalyst carrier 30 rebound that is located station 2, and catalyst carrier 30 both ends form seal structure with funnel and pressure measurement device respectively. During operation, the pressure measuring device moves upwards, the pressure measuring device and the funnel are matched to support the catalyst carrier 30 and form a sealing structure, constant-pressure gas is provided for the funnel through the pressurizing machine, the internal gas pressure is detected through the testing device, and the backpressure value is detected according to the upper and lower pressure difference of the catalyst carrier 30.

The hole plugging rate detection device 9 comprises a light source and a light measuring device which are arranged on the upper side and the lower side of the station 2 on the turntable 1, and the light measuring device is in signal connection with the light source. In operation, the area of the light spot located below the catalyst carrier 30 is measured by a photometric device, thereby determining the plugging rate of the catalyst carrier 30.

Through the cooperation of backpressure detection device 8 and plugged rate detection device 9, can detect the plugged rate of the carrier after coating thick liquids, further detect the adsorption efficiency of carrier, improve the performance and the yields of carrier.

A code spraying device is arranged beside the blanking device 10, and the processed catalyst carrier 30 is sprayed with required marks (such as product detection data, qualified marks or two-dimensional codes) by the code spraying device and then is blanked by the blanking device 10.

To sum up, in the utility model, through the cooperation of the turntable 1 and the cam dividing machine, the plurality of stations 2 are arranged at the top end of the turntable 1, and the plurality of processing devices are sequentially arranged outside the turntable 1 in a surrounding manner, so that a plurality of catalyst records can be processed at the same time, and the production efficiency is high; through the feeding mechanism 11, the grouting hopper 25, the jacking mechanism 27 and the suction pipe 31 in the negative pressure coating device 5, under the action of the jacking mechanism 27, two ends of the catalyst carrier 30 are respectively in sealing butt joint with the ends of the grouting hopper 25 and the suction pipe 31, slurry leakage in the coating process is prevented, negative pressure is formed in the catalyst carrier 30 through the matching of the feeding mechanism 11 and the vacuumizing mechanism 33, so that the slurry can quickly pass through and be attached to the hole wall of the inner hole of the catalyst carrier 30, the coating speed is high, the coating thickness is uniform, and the yield is high; through detection device, can detect the stifled hole rate of carrier behind the coating thick liquids, further detect the adsorption efficiency of carrier, improve the performance and the yields of carrier.

It is right to have used specific individual example above the utility model discloses expound, only be used for helping to understand the utility model discloses, not be used for the restriction the utility model discloses. To the technical field of the utility model technical personnel, the foundation the utility model discloses an idea can also be made a plurality of simple deductions, warp or replacement.

Claims

1. A coating system for catalyst carriers is characterized by comprising a turntable, wherein a rotating shaft of the turntable is in driving connection with a cam indexing mechanism, a plurality of stations for placing the catalyst carriers are uniformly arranged on the periphery of the top end of the turntable in a radial shape, and a feeding device, a negative pressure coating device and a discharging device are sequentially arranged on the outer side of the turntable in a surrounding manner;

the negative pressure coating device comprises a feeding mechanism, a grouting hopper, a jacking air-extracting mechanism and a suction pipe, wherein the grouting hopper and the suction pipe are respectively positioned at the upper side and the lower side of a station on the rotary table, the grouting hopper is communicated with the feeding mechanism, the jacking air-extracting mechanism is connected with the suction pipe, under the action of the jacking air-extracting mechanism, two ends of the catalyst carrier are respectively in sealing butt joint with the grouting hopper and the end part of the suction pipe, and one end of the suction pipe, far away from the rotary table, is communicated with the vacuum-extracting mechanism.

2. The coating system for the catalyst carrier according to claim 1, wherein a detection device is further disposed outside the turntable, and the detection device is located between the negative pressure coating device and the blanking device.

3. The coating system for a catalyst carrier according to claim 2, wherein the detection means includes a back pressure detection means and a plugging rate detection means which are provided in this order.

4. The coating system for the catalyst carrier according to claim 3, wherein the backpressure detection device comprises a pressurizing machine, a funnel and a pressure measuring device, the pressurizing machine and the pressure measuring device are symmetrically arranged at the upper side and the lower side of a station on the turntable, the funnel is connected to the pressurizing machine, the pressure measuring device drives the catalyst carrier on the station to move upwards, and two ends of the catalyst carrier respectively form a sealing structure with the funnel and the pressure measuring device.

5. The coating system for a catalyst carrier according to claim 3, wherein the plugging rate detection means includes a light source and a photometric means provided at upper and lower sides of the station on the turntable, the photometric means being in signal connection with the light source.

6. The coating system for the catalyst carrier according to claim 2, wherein two weighing devices are further disposed outside the turntable, and the two weighing devices are respectively located between the feeding device and the negative pressure coating device, between the negative pressure coating device and between the detecting device.

7. A coating system for catalyst carriers according to claim 6 wherein the weighing means comprises a camera for taking a picture of the catalyst carriers at the work station and a weighing means for weighing the catalyst carriers at the work station.

8. The coating system for the catalyst carrier according to claim 6, wherein a secondary vacuum-pumping device is further disposed outside the turntable, the secondary vacuum-pumping device is located between the negative pressure coating device and the weighing device, and the secondary vacuum-pumping device is communicated with the vacuum-pumping mechanism.

9. The coating system for the catalyst carrier according to claim 1, wherein a code spraying device is provided beside the blanking device.