CN211328248U - Curtain coating thick liquids vacuum bubble removing device - Google Patents
Curtain coating thick liquids vacuum bubble removing device Download PDFInfo
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- CN211328248U CN211328248U CN201922032742.3U CN201922032742U CN211328248U CN 211328248 U CN211328248 U CN 211328248U CN 201922032742 U CN201922032742 U CN 201922032742U CN 211328248 U CN211328248 U CN 211328248U
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- defoaming
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Abstract
The utility model belongs to the technical field of piece formula oxygen sensor production facility, concretely relates to curtain coating thick liquids vacuum defoaming device, including defoaming jar, buffer tank and vacuum pump, defoaming jar top is provided with feed inlet and gas outlet, and the bottom is provided with the discharge gate, and the defoaming jar is internally provided with the (mixing) shaft, and the top cooperation of defoaming jar is provided with agitator motor, and umbrella-shaped material distributing plate has been set firmly on the (mixing) shaft upper portion, and funnel-shaped material distributing plate has been set firmly on the jar inner wall below the material distributing plate; a blanking seam is reserved between the material distributing plate and the material distributing plate, a blanking seam is reserved between the material distributing plate and the stirring shaft, a plurality of groups of radial horizontally-rotating stirring rods are fixedly arranged at the lower part of the stirring shaft at intervals, and a horizontally-fixed stirring rod is fixedly arranged on the inner wall of the tank between every two groups of stirring rods; defoaming jar gas outlet is connected to the buffer tank, and the venthole of buffer tank is connected to the vacuum pump, adopts vacuum stirring physics defoaming mode, promotes the quality of curtain coating shaping electronic ceramic unburned bricks, guarantees the stability of piece formula oxygen sensor quality.
Description
Technical Field
The utility model belongs to the technical field of piece formula oxygen sensor production facility, concretely relates to curtain coating thick liquids vacuum defoaming device.
Background
Oxygen sensors are generally classified into tubular oxygen sensors and sheet oxygen sensors; compared with a tubular oxygen sensor, the sheet type oxygen sensor has the advantages of quick response time from ignition to oxygen content detection, simple production and preparation, good control effect, more reliable performance and the like, so that the sheet type oxygen sensor becomes the development trend of the oxygen sensor; the sheet oxygen sensor usually adopts a tape casting method, stirring is needed to be used in a tank body for fully mixing when the tape casting slurry is prepared, bubbles in the tape casting slurry need to be removed before tape casting, and otherwise, the quality of tape casting electronic ceramic green bodies can be affected.
At present, in the production process of high-viscosity liquid such as casting slurry, the modes capable of realizing defoaming are generally divided into two types, namely a chemical method and a physical method. The chemical defoaming method generally adopts the mode of adding the defoaming agent, uses the defoaming agent not only can increase the cost, seriously influences product quality, still can increase the processing degree of difficulty of waste water, and the use of defoaming agent makes the waste water discharge of a lot of enterprises can't reach standard. Therefore, in the industrial production of high viscosity liquid, in order to obtain better defoaming efficiency and ensure the stability of the product, physical defoaming is often adopted.
Physical defoaming means such as stirring, centrifugation, defoaming in vacuum, etc.; but the production efficiency of stirring, centrifuging and defoaming is low, and the bubbles are more remained; during the vacuum defoaming, continuous evacuation defoaming then often can be because of the excessive inflation of bubble volume to lead to the bubble to get into the normal use that the vacuum pump influences equipment, intermittent type formula evacuation defoaming is then twice evacuation's interval time overlength, leads to the defoaming inefficiency, and the gas of deviating from during evacuation intermittence can influence the vacuum moreover, and then reduces defoaming efficiency.
SUMMERY OF THE UTILITY MODEL
In order to the above situation, the utility model provides a curtain coating thick liquids vacuum defoaming device adopts vacuum mixing physics defoaming mode, and the defoaming is efficient, and the defoaming is effectual.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a casting slurry vacuum defoaming device comprises a defoaming tank, a buffer tank and a vacuum pump, wherein a feed inlet and an air outlet are formed in the top of the defoaming tank, a discharge outlet is formed in the bottom of the defoaming tank, a stirring shaft is arranged in the defoaming tank, a stirring speed reducer is arranged above the defoaming tank in a matched mode, the upper end of the stirring speed reducer is provided with a stirring motor in a matched mode, an umbrella-shaped material dispersing plate with the periphery inclined downwards is fixedly arranged at the upper part of the stirring shaft, and a funnel-shaped material dispersing plate with the center inclined downwards is fixedly arranged on the inner wall; a blanking seam is reserved between the material distributing plate and the material distributing plate, a blanking seam is reserved between the material distributing plate and the stirring shaft, a plurality of groups of radial horizontal rotating stirring rods are fixedly arranged at the lower part of the stirring shaft at intervals, a horizontal fixed stirring rod is fixedly arranged on the inner wall of the tank between every two groups of stirring rods, and a plurality of vertical stirring thorns are fixedly arranged on the rotating stirring rods and the fixed stirring rods at intervals in a staggered manner; the air outlet is connected to the air inlet of the buffer tank, and the air outlet of the buffer tank is connected to the air inlet pipe of the vacuum pump.
Preferably, a plurality of ratchets are distributed on the upper surface of the bulk material plate.
As a preferred scheme, a plurality of sieve holes are formed in the material distribution plate.
Preferably, a mechanical seal is arranged between the lower end of the stirring speed reducer and the upper end of the stirring shaft.
As a preferred scheme, the bottom of the buffer tank is provided with a slag discharge hole.
As the preferred scheme, the air outlet pipe of the vacuum pump is connected with a rainproof bent pipe.
The utility model discloses still including other subassemblies that can make this curtain coating thick liquids vacuum bubble removal device normal use, be the conventional technical means in this field, in addition, the utility model discloses in add device or the subassembly of injecing, all adopt the conventional setting in this field.
The utility model discloses an action principle and beneficial effect as follows:
the vacuum pump is used for pumping the defoaming tank to a vacuum state, the material enters the defoaming tank from the feeding hole and is centrifugally thrown out or slides down from the blanking slit along with the rotating bulk material plate with the ratchet, the bubbles in the material are punctured by impact, the vacuum buffer tank is arranged to be beneficial to keeping the stability of the vacuum degree, defoaming once under the action of vacuum, then slipping down and leaking through a distributing plate with sieve holes below, shearing and stirring at the lower part of a defoaming tank by rotating a stirring rod, fixing the stirring rod and stirring spines, defoaming again under the action of vacuum to eliminate bubbles in the feed liquid, which is favorable for improving defoaming efficiency, the vacuum defoaming device adopts a vacuum stirring physical defoaming mode, has simple structure, does not add a defoaming agent, does not influence the property of the casting slurry, and the defoaming effect is excellent, the quality of the tape-casting electronic ceramic green body is improved, and the stability of the quality of the sheet type oxygen sensor is ensured.
Drawings
Fig. 1 is a schematic structural view of a casting slurry vacuum defoaming device of an embodiment.
Detailed Description
The technical solution of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and obviously, the described embodiments are only some embodiments of the present invention, not all embodiments.
Examples
As shown in fig. 1, the casting slurry vacuum defoaming device comprises a defoaming tank 1, a buffer tank 2 and a vacuum pump 3, wherein a feed inlet 4 and an air outlet 5 are arranged at the top of the defoaming tank 1, a discharge outlet 6 is arranged at the bottom of the defoaming tank, a stirring shaft 7 is arranged inside the defoaming tank 1, a stirring speed reducer 8 is arranged above the defoaming tank 1 in a matching manner with the stirring shaft 7, a stirring motor 9 is arranged at the upper end of the stirring speed reducer 8 in a matching manner, an umbrella-shaped material dispersing plate 10 with the periphery inclined downwards is fixedly arranged at the upper part of the stirring shaft 7, and a funnel-shaped material distributing plate 11 with the center inclined downwards; a blanking seam 12 is reserved between the material distributing plate 10 and the material distributing plate 11, a blanking seam 13 is reserved between the material distributing plate 11 and the stirring shaft 7, a plurality of groups of radial horizontal rotating stirring rods 14 are fixedly arranged at the lower part of the stirring shaft 7 at intervals, a horizontal fixed stirring rod 15 is fixedly arranged on the inner wall of the tank between every two groups of stirring rods 14, and a plurality of vertical stirring thorns 16 are fixedly arranged on the rotating stirring rods 14 and the fixed stirring rods 15 at intervals in a staggered manner; the air outlet 5 is connected to an air inlet 17 of the buffer tank 2, and an air outlet 18 of the buffer tank 2 is connected to an air inlet pipe 19 of the vacuum pump 3.
A plurality of ratchets 20 are distributed on the upper surface of the material scattering plate 10.
A plurality of sieve holes 21 are arranged on the distributing plate 11.
And a mechanical seal 22 is arranged between the lower end of the stirring speed reducer 8 and the upper end of the stirring shaft 7.
And a slag discharge hole 23 is formed in the bottom of the buffer tank 2.
The air outlet pipe 24 of the vacuum pump 3 is connected with a rain-proof elbow pipe 25.
The technical solution of the present invention is not limited to the above-mentioned specific embodiments, and many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.
Claims (6)
1. The utility model provides a curtain coating thick liquids vacuum bubble removing device which characterized in that: the defoaming device comprises a defoaming tank (1), a buffer tank (2) and a vacuum pump (3), wherein a feed inlet (4) and a gas outlet (5) are formed in the top of the defoaming tank (1), a discharge outlet (6) is formed in the bottom of the defoaming tank (1), a stirring shaft (7) is arranged in the defoaming tank (1), a stirring speed reducer (8) is arranged above the defoaming tank (1) in a matching manner and is matched with the stirring shaft (7), a stirring motor (9) is arranged at the upper end of the stirring speed reducer (8) in a matching manner, an umbrella-shaped material dispersing plate (10) with the periphery inclined downwards is fixedly arranged at the upper part of the stirring shaft (7), and a funnel-shaped material distributing; a blanking seam (12) is reserved between the material distributing plate (10) and the material distributing plate (11), blanking seams (13) are reserved between the material distributing plate (11) and the stirring shaft (7), a plurality of groups of radial horizontal rotating stirring rods (14) are fixedly arranged at intervals at the lower part of the stirring shaft (7), a horizontal fixed stirring rod (15) is fixedly arranged on the inner wall of the tank between every two groups of stirring rods (14), and a plurality of vertical stirring spines (16) are fixedly arranged on the rotating stirring rods (14) and the fixed stirring rods (15) at intervals in a staggered manner; the air outlet (5) is connected to an air inlet hole (17) of the buffer tank (2), and an air outlet hole (18) of the buffer tank (2) is connected to an air inlet pipe (19) of the vacuum pump (3).
2. The casting slurry vacuum defoaming apparatus according to claim 1, wherein: the upper surface of the bulk material plate (10) is provided with a plurality of ratchets (20).
3. The casting slurry vacuum defoaming apparatus according to claim 1, wherein: a plurality of sieve pores (21) are arranged on the material distribution plate (11).
4. The casting slurry vacuum defoaming apparatus according to claim 1, wherein: and a mechanical seal (22) is arranged between the lower end of the stirring speed reducer (8) and the upper end of the stirring shaft (7).
5. The casting slurry vacuum defoaming apparatus according to claim 1, wherein: and a slag discharge hole (23) is formed in the bottom of the buffer tank (2).
6. The casting slurry vacuum defoaming apparatus according to claim 1, wherein: and a rain-proof bent pipe (25) is connected to an air outlet pipe (24) of the vacuum pump (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922032742.3U CN211328248U (en) | 2019-11-22 | 2019-11-22 | Curtain coating thick liquids vacuum bubble removing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922032742.3U CN211328248U (en) | 2019-11-22 | 2019-11-22 | Curtain coating thick liquids vacuum bubble removing device |
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| Publication Number | Publication Date |
|---|---|
| CN211328248U true CN211328248U (en) | 2020-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922032742.3U Active CN211328248U (en) | 2019-11-22 | 2019-11-22 | Curtain coating thick liquids vacuum bubble removing device |
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| CN (1) | CN211328248U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112624758A (en) * | 2020-12-19 | 2021-04-09 | 安徽致磨新材料科技有限公司 | High-wear-resistance zirconia beads and preparation method thereof |
| CN113372102A (en) * | 2021-07-13 | 2021-09-10 | 浙江蔚蓝航盾精密陶瓷科技有限公司 | Method for preparing alumina substrate from ultrafine alumina powder and preparation production line |
| CN114538899A (en) * | 2022-01-21 | 2022-05-27 | 福建华清电子材料科技有限公司 | Preparation method of 996 aluminum oxide ceramic substrate |
-
2019
- 2019-11-22 CN CN201922032742.3U patent/CN211328248U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112624758A (en) * | 2020-12-19 | 2021-04-09 | 安徽致磨新材料科技有限公司 | High-wear-resistance zirconia beads and preparation method thereof |
| CN113372102A (en) * | 2021-07-13 | 2021-09-10 | 浙江蔚蓝航盾精密陶瓷科技有限公司 | Method for preparing alumina substrate from ultrafine alumina powder and preparation production line |
| CN114538899A (en) * | 2022-01-21 | 2022-05-27 | 福建华清电子材料科技有限公司 | Preparation method of 996 aluminum oxide ceramic substrate |
| CN114538899B (en) * | 2022-01-21 | 2022-10-21 | 福建华清电子材料科技有限公司 | Preparation method of 996 aluminum oxide ceramic substrate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A vacuum defoaming device for tape casting slurry Effective date of registration: 20210309 Granted publication date: 20200825 Pledgee: Jiaozuo Branch of Luoyang Bank Co.,Ltd. Pledgor: JIAOZUO WEINA TECHNOLOGY Co.,Ltd. Registration number: Y2021980001523 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220420 Granted publication date: 20200825 Pledgee: Jiaozuo Branch of Luoyang Bank Co.,Ltd. Pledgor: JIAOZUO WEINA TECHNOLOGY CO.,LTD. Registration number: Y2021980001523 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |