CN213348321U - Tail gas recovery system for pearlescent pigment industry - Google Patents
Tail gas recovery system for pearlescent pigment industry Download PDFInfo
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- CN213348321U CN213348321U CN202021784211.6U CN202021784211U CN213348321U CN 213348321 U CN213348321 U CN 213348321U CN 202021784211 U CN202021784211 U CN 202021784211U CN 213348321 U CN213348321 U CN 213348321U
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- tail gas
- washing tower
- pearlescent pigment
- recovery system
- acid solution
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Abstract
The utility model discloses a tail gas recovery system for pearlescent pigment trade, it includes: the recovery tank is provided with a tail gas inlet, a circulating water inlet and a dilute acid solution outlet; the washing tower is provided with a washing tower inlet and a dilute acid solution outlet, and the dilute acid solution outlet of the recovery tank enters the washing tower through the washing tower inlet; and the dilute hydrochloric acid storage tank is communicated with a dilute acid solution outlet of the washing tower through a pipeline. Compared with the prior art, the tail gas recovery system 1) for pearlescent pigment industry can recover redundant acid gas, and avoid direct emission of the acid gas and environmental pollution; 2) acid gas in the tail gas can be circularly absorbed, so that the tail gas treatment cost is saved; 3) the utility model discloses the diluted acid solution that pearlescent pigment trade was retrieved with tail gas recovery system can use the in-process that mica acid bubble edulcoration, hydrolysis pH adjusted and chemical raw and other materials were prepared etc, has improved the utilization ratio of dilute hydrochloric acid, reduction in production cost.
Description
Technical Field
The utility model belongs to the pearlescent pigment field, more specifically says, the utility model relates to a pearlescent pigment is tail gas recovery system for trade.
Background
The pearlescent pigment generally comprises a flaky substrate and a metal oxide coated on the flaky substrate, and the kind of the coated metal oxide can be selected according to the desired pearlescent pigment, for example, a metal oxide (such as titanium dioxide, iron oxide) with a high refractive index is coated to obtain pearlescent color by the interference effect of light refraction.
In the pearlescent pigment industry, acidic gas is generated in the titanium liquid preparation process, acidic gas is also generated in the pearlescent pigment hydrolysis coating process, and the acidic gas is directly discharged to pollute the environment and influence the health of operators. In addition, in the production process of the pearlescent pigment, mica needs to be subjected to acid soaking treatment, hydrolysis pH adjustment and chemical raw material preparation, and diluted hydrochloric acid needs to be prepared and added, so that the consumption cost is high.
In view of this, it is necessary to provide a tail gas recovery system for pearlescent pigment industry to solve the problem of acidic gas generated in the titanium preparation process and acidic gas generated in the pearlescent pigment coating process in the reaction kettle, and to avoid direct emission of acidic gas and environmental pollution.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: the tail gas recovery system overcomes the defects of the prior art, and provides the tail gas recovery system for the pearlescent pigment industry, so that the problem that acidic gas generated in the titanium preparation process and the acidic gas generated in the pearlescent pigment coating process in a reaction kettle are solved, and the direct emission of the acidic gas is avoided, so that the pollution to the environment is avoided.
In order to achieve the above object, the present invention provides a tail gas recovery system for pearlescent pigment industry, which comprises:
the recovery tank is provided with a tail gas inlet, a circulating water inlet and a dilute acid solution outlet;
the washing tower is provided with a washing tower inlet and a dilute acid solution outlet, and the dilute acid solution outlet of the recovery tank enters the washing tower through the washing tower inlet; and
and the dilute hydrochloric acid storage tank is communicated with a dilute acid solution outlet of the washing tower through a pipeline.
As an improvement of the tail gas recovery system for the pearlescent pigment industry, the circulating water inlet is connected with the washing tower through a pipeline.
As an improvement of the tail gas recovery system for pearlescent pigment industry, the top of the recovery tank is provided with a spray head, and circulating water and/or dilute acid solution are sprayed from the tail gas entering from the tail gas inlet port from the top down of the spray head.
As an improvement of the tail gas recovery system for the pearlescent pigment industry, the top of the washing tower is provided with an air outlet.
As an improvement of the tail gas recovery system for the pearlescent pigment industry, an exhaust fan is arranged between the top of the washing tower and the air outlet.
As an improvement of the tail gas recovery system for the pearlescent pigment industry, the tail gas inlet port leads to the acid gas generated in the titanium preparation system and each reaction kettle of the pearlescent pigment industry through the pipeline.
Compared with the prior art, the utility model discloses tail gas recovery system for pearlescent pigment trade has following advantage:
1) the redundant acid gas can be recycled, so that the direct discharge of the acid gas and the environmental pollution are avoided;
2) acid gas in the tail gas can be circularly absorbed, and other additives are not needed in the absorption process, so that the tail gas treatment cost can be saved;
3) the utility model discloses the diluted acid solution that pearlescent pigment trade was retrieved with tail gas recovery system can use the in-process that mica acid bubble edulcoration, hydrolysis pH adjusted and chemical raw and other materials were prepared etc, has improved the utilization ratio of dilute hydrochloric acid, reduction in production cost.
Drawings
The following detailed description is made of the tail gas recovery system for pearlescent pigment industry according to the present invention with reference to the accompanying drawings and the specific embodiments, wherein:
fig. 1 is a schematic structural diagram of the tail gas recovery system for pearlescent pigment industry of the present invention.
Detailed Description
In order to make the utility model aim at, technical scheme and technical effect more clear, it is right to combine the figure and detailed implementation mode below in the utility model to make further detailed description. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and not limitation.
Referring to fig. 1, the utility model provides a tail gas recovery system for pearlescent pigment industry, which includes:
the recovery tank 10 is provided with a tail gas inlet 100, a circulating water inlet 102 and a dilute acid solution outlet 104;
the washing tower 20 is provided with a washing tower inlet 200 and a dilute acid solution outlet 202, and the dilute acid solution outlet 104 of the recovery tank 10 enters the washing tower 20 through the washing tower inlet 200; and
the dilute hydrochloric acid storage tank 30 is communicated with a dilute acid solution outlet 202 of the washing tower 20 through a pipeline.
The recovery tank 10 is provided with a tail gas inlet 100, a circulating water inlet 102 and a dilute acid solution outlet 104, wherein the tail gas inlet 100 can be led into a titanium preparation system in the pearlescent pigment industry and acid gas generated in each reaction kettle through pipelines. In the illustrated embodiment, the circulating water inlet 102 is a nozzle (not shown) disposed at the top of the recovery tank 10, and circulating water and/or a dilute acid solution from the washing tower 20 is sprayed from top to bottom through the nozzle from the tail gas inlet 100 into the recovery tank 10, so that the tail gas in the recovery tank 10 reacts with pure water to form a dilute acid solution, and the dilute acid solution flows into the washing tower 20 after being fully collected, thereby achieving the effect of recycling the tail gas.
The washing tower 20 is provided with a washing tower inlet 200 and a dilute acid solution outlet 202, and the circulating water inlet 102 is connected with the washing tower 20 through a pipeline. An air outlet 204 is provided at the top of the scrubber tower 20, and an exhaust fan 40 is provided between the top of the scrubber tower 20 and the air outlet 204. The dilute hydrochloric acid collected in the washing tower 20 is pumped into the hydrochloric acid storage tank 30 through a pipeline for use in the processes of mica acid soaking for impurity removal, hydrolysis pH adjustment, chemical raw material preparation and the like.
In combination with the above detailed description of the embodiments of the present invention, it can be seen that, compared with the prior art, the tail gas recovery system for pearlescent pigment industry of the present invention has the following advantages:
1) the redundant acid gas can be recycled, so that the direct discharge of the acid gas and the environmental pollution are avoided;
2) acid gas in the tail gas can be circularly absorbed, and other additives are not needed in the absorption process, so that the tail gas treatment cost can be saved;
3) the utility model discloses the diluted acid solution that pearlescent pigment trade was retrieved with tail gas recovery system can use the in-process that mica acid bubble edulcoration, hydrolysis pH adjusted and chemical raw and other materials were prepared etc, has improved the utilization ratio of dilute hydrochloric acid, reduction in production cost.
Appropriate changes and modifications to the embodiments described above will become apparent to those skilled in the art from the disclosure and teachings of the foregoing description. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should fall within the protection scope of the claims of the present invention. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.
Claims (6)
1. The utility model provides a tail gas recovery system for pearlescent pigment trade which characterized in that includes:
the recovery tank is provided with a tail gas inlet, a circulating water inlet and a dilute acid solution outlet;
the washing tower is provided with a washing tower inlet and a dilute acid solution outlet, and the dilute acid solution outlet of the recovery tank enters the washing tower through the washing tower inlet; and
and the dilute hydrochloric acid storage tank is communicated with a dilute acid solution outlet of the washing tower through a pipeline.
2. The tail gas recovery system for pearlescent pigment industry according to claim 1, wherein the circulating water inlet is connected with the washing tower through a pipeline.
3. The tail gas recovery system for pearlescent pigment industry according to claim 1, wherein a spray head is arranged at the top of the recovery tank, and circulating water and/or dilute acid solution is sprayed from top to bottom through the spray head from the tail gas inlet to the tail gas inlet.
4. The tail gas recovery system for pearlescent pigment industry according to claim 1, wherein the top of the washing tower is provided with an air discharge outlet.
5. The tail gas recovery system for pearlescent pigment industry according to claim 4, wherein an exhaust fan is arranged between the top of the washing tower and the air outlet.
6. The tail gas recovery system for pearlescent pigment industry according to claim 1, wherein the tail gas inlet is introduced into a titanium distribution system and acid gas generated in each reaction kettle of pearlescent pigment industry through pipelines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021784211.6U CN213348321U (en) | 2020-08-21 | 2020-08-21 | Tail gas recovery system for pearlescent pigment industry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021784211.6U CN213348321U (en) | 2020-08-21 | 2020-08-21 | Tail gas recovery system for pearlescent pigment industry |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213348321U true CN213348321U (en) | 2021-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021784211.6U Active CN213348321U (en) | 2020-08-21 | 2020-08-21 | Tail gas recovery system for pearlescent pigment industry |
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| Country | Link |
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| CN (1) | CN213348321U (en) |
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2020
- 2020-08-21 CN CN202021784211.6U patent/CN213348321U/en active Active
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Tail gas recovery system for pearlescent pigment industry Effective date of registration: 20230104 Granted publication date: 20210604 Pledgee: China Construction Bank Corporation Liuzhou Branch Pledgor: GUANGXI CHESIR PEARL MATERIAL Co.,Ltd. Registration number: Y2023450000001 |