CN216224401U - Calcium bromide apparatus for producing - Google Patents
Calcium bromide apparatus for producing Download PDFInfo
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- CN216224401U CN216224401U CN202122888536.XU CN202122888536U CN216224401U CN 216224401 U CN216224401 U CN 216224401U CN 202122888536 U CN202122888536 U CN 202122888536U CN 216224401 U CN216224401 U CN 216224401U
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Abstract
The utility model discloses a calcium bromide production device.A blow-off tower is connected with a mixed feeding pipeline, the lower part of the blow-off tower is communicated with a fan through a pipeline, the top of the blow-off tower is communicated with an absorption tower through a pipeline, and the absorption tower is communicated with an absorption liquid storage tank through a pipeline; the absorption liquid storage tank is communicated to the refining kettle through a pipeline, the top of the refining kettle is communicated with a reducing acid feeding pipeline, the bottom of the refining kettle is communicated to the evaporator through a pipeline, and the evaporator is communicated to the centrifuge through a pipeline. In the whole process, strong acidic raw materials such as hydrobromic acid are not required to be added, the risks of storage and operation are reduced, simultaneously, brine with the lowest price is directly used as the raw material, the production cost is greatly reduced, calcium bromide in two forms of solid and liquid is finally obtained after centrifugation, and the requirements of various customers are met.
Description
Technical Field
The utility model relates to the technical field of calcium bromide production, in particular to a calcium bromide production device.
Background
At present, hydrobromic acid and calcium hydroxide are generally adopted for producing calcium bromide for neutralization, and the hydrobromic acid is an aqueous solution of hydrogen bromide, is stronger in acidity than hydrochloric acid but weaker in acidity than hydroiodic acid, and is one of the strongest inorganic acids, so that operators are confronted with greater potential safety hazards when the hydrobromic acid is used as a raw material for producing the calcium bromide. Meanwhile, when the hydrobromic acid is used for producing the calcium bromide, the adding amount of the hydrobromic acid in the reaction kettle is strictly controlled, the precision requirement is higher, the solid calcium bromide is obtained by decoloring and crystallizing after the production is finished, and the purity of the calcium bromide is generally low.
Disclosure of Invention
The technical problem to be solved by the utility model is as follows: to the not enough of prior art existence, provide a calcium bromide apparatus for producing, the security is high, and the calcium bromide purity of production is high, obtains the calcium bromide of solid and liquid simultaneously, can satisfy different customers' demand.
In order to solve the technical problems, the technical scheme of the utility model is as follows:
a calcium bromide production device comprises a blow-off tower, wherein the blow-off tower is connected with a mixed feeding pipeline, the mixed feeding pipeline is respectively communicated with a brine feeding pipeline and a chlorine feeding pipeline, the lower part of the blow-off tower is communicated with a fan through a pipeline, the top of the blow-off tower is communicated with an absorption tower through a pipeline, and the absorption tower is communicated with an absorption liquid storage tank through a pipeline;
the absorption liquid storage tank is communicated with the refining kettle through a pipeline, the top of the refining kettle is communicated with a reducing acid feeding pipeline, the bottom of the refining kettle is communicated with an evaporator through a pipeline, the evaporator is communicated with the centrifugal machine through a pipeline, a solid phase outlet of the centrifugal machine is communicated with a solid calcium bromide storage tank, and a liquid phase outlet of the centrifugal machine is communicated with a liquid calcium bromide storage tank.
As an improved technical scheme, the mixed feeding pipeline extends into the blow-out tower and is provided with a plurality of spray headers.
As an improved technical scheme, the absorption tower comprises a primary absorption tower, a secondary absorption tower and a tertiary absorption tower which are sequentially communicated through a pipeline, the primary absorption tower is communicated with the top of the blow-out tower through a pipeline, and the top of the tertiary absorption tower is communicated to the fan through a pipeline;
and the primary absorption tower, the secondary absorption tower and the tertiary absorption tower are all provided with absorption liquid circulating pumps.
As an improved technical scheme, the three-stage absorption tower is communicated to an absorbent preparation tank through an absorbent liquid supply pump, a first absorbent overflow pipeline is arranged between the three-stage absorption tower and the two-stage absorption tower, a second absorbent overflow pipeline is arranged between the two-stage absorption tower and the one-stage absorption tower, and the first absorbent overflow pipeline and the second absorbent overflow pipeline enable absorbent to overflow from the three-stage absorption tower to the two-stage absorption tower and then overflow to the one-stage absorption tower;
the first-stage absorption tower is communicated to the absorption liquid storage tank through an absorption liquid overflow pipeline.
As an improved technical scheme, the refining kettle is communicated with a plate-and-frame filter press through a pipeline, a liquid phase outlet of the plate-and-frame filter press is communicated to a refined liquid storage tank through a pipeline, the refined liquid storage tank is communicated to the evaporator through a pipeline, and a slag outlet of the plate-and-frame filter press is communicated to the absorbent preparation tank through a pipeline.
As an improved technical scheme, the evaporator comprises a first-effect evaporator and a second-effect evaporator which are sequentially communicated through a pipeline, the first-effect evaporator and the second-effect evaporator are respectively provided with an evaporation chamber, the bottom of the evaporation chamber is communicated to a heater through a circulating pump, the top of the heater is communicated to the evaporation chamber through a pipeline, the heater of the first-effect evaporator is communicated with steam, the evaporation chamber of the second-effect evaporator is communicated with a condenser, and the condenser is communicated to a vacuum pump through a pipeline;
the refining kettle is communicated to a heater of the first-effect evaporator through a pipeline, and an evaporation chamber of the second-effect evaporator is communicated to the centrifuge through a pipeline.
As a preferred technical scheme, a static mixer is arranged on the mixing feed pipeline.
As a preferred technical scheme, the feed end of the centrifuge is connected with a thick kettle, and the top of the thick kettle is connected with a cyclone.
Due to the adoption of the technical scheme, the utility model has the beneficial effects that:
the utility model relates to a calcium bromide production device, which comprises a blow-off tower, wherein the blow-off tower is connected with a mixed feeding pipeline, the mixed feeding pipeline is respectively communicated with a brine feeding pipeline and a chlorine feeding pipeline, the lower part of the blow-off tower is communicated with a fan through a pipeline, the top of the blow-off tower is communicated with an absorption tower through a pipeline, and the absorption tower is communicated with an absorption liquid storage tank through a pipeline; the absorption liquid storage tank is communicated with the refining kettle through a pipeline, the top of the refining kettle is communicated with a reducing acid feeding pipeline, the bottom of the refining kettle is communicated with an evaporator through a pipeline, the evaporator is communicated with the centrifugal machine through a pipeline, a solid phase outlet of the centrifugal machine is communicated with a solid calcium bromide storage tank, and a liquid phase outlet of the centrifugal machine is communicated with a liquid calcium bromide storage tank. The method comprises the steps of spraying an oxidizing solution formed by chlorine and brine from the top of a blowing tower, enabling the oxidizing solution to be in countercurrent contact with air blown from a fan from the bottom of the blowing tower, blowing bromine in the oxidizing solution out, enabling the bromine to enter an absorption tower and be absorbed by calcium hydroxide to form an absorption solution, enabling the absorption solution to be a mixed solution of calcium bromide and calcium bromate, enabling the calcium bromate in the absorption solution to react with reducing acid in a refining kettle to generate calcium bromide, and then evaporating and centrifuging the liquid in the refining kettle to obtain a calcium bromide product. In the whole process, strong acidic raw materials such as hydrobromic acid are not required to be added, the risks of storage and operation are reduced, simultaneously, brine with the lowest price is directly used as the raw material, the production cost is greatly reduced, calcium bromide in two forms of solid and liquid is finally obtained after centrifugation, and the requirements of various customers are met.
The mixed feed pipe of the utility model extends into the blow-off tower and is provided with a plurality of spray headers. The oxidizing liquid is uniformly dispersed and falls down from the top of the blowing tower through the plurality of nozzles, so that the bromine can be blown out by air better, the waste of raw materials is avoided, and the yield is improved.
The absorption tower comprises a primary absorption tower, a secondary absorption tower and a tertiary absorption tower which are sequentially communicated through a pipeline, the primary absorption tower is communicated with the top of the blow-out tower through a pipeline, and the top of the tertiary absorption tower is communicated to the fan through a pipeline; and the primary absorption tower, the secondary absorption tower and the tertiary absorption tower are all provided with absorption liquid circulating pumps. Through tertiary absorption, can thoroughly catch the bromine in the air, the raw materials high-usage has improved the yield, has also prevented simultaneously that unabsorbed bromine from spilling over to cause environmental pollution in the air.
The third-stage absorption tower is communicated to an absorbent preparation tank through an absorbent liquid supply pump, a first absorbent overflow pipeline is arranged between the third-stage absorption tower and the second-stage absorption tower, a second absorbent overflow pipeline is arranged between the second-stage absorption tower and the first-stage absorption tower, and the first absorbent overflow pipeline and the second absorbent overflow pipeline enable the absorbent to overflow from the third-stage absorption tower to the second-stage absorption tower and then overflow to the first-stage absorption tower; the first-stage absorption tower is communicated to the absorption liquid storage tank through an absorption liquid overflow pipeline. The absorbent overflows to the second-stage absorption tower from the third-stage absorption tower, then overflows to the first-stage absorption tower from the second-stage absorption tower, finally enters the absorption liquid storage tank from the first-stage absorption tower, and only the index of the absorption liquid in the first-stage absorption tower needs to be controlled after the third-stage absorption, so that the concentration of the calcium hydroxide in the first-stage absorption tower can be adjusted more conveniently.
The refining kettle is communicated with a plate-and-frame filter press through a pipeline, a liquid phase outlet of the plate-and-frame filter press is communicated to a refined liquid storage tank through a pipeline, the refined liquid storage tank is communicated to the evaporator through a pipeline, and a slag outlet of the plate-and-frame filter press is communicated to the absorbent preparation tank through a pipeline. The liquid obtained by filter pressing is refined, the obtained slag body can be recycled continuously in a mode of preparing an absorbent, the waste of raw materials is avoided, and meanwhile, the yield of the product can be improved to a small extent through recycling of the slag body.
The evaporator comprises a first-effect evaporator and a second-effect evaporator which are sequentially communicated through a pipeline, the first-effect evaporator and the second-effect evaporator are respectively provided with an evaporation chamber, the bottom of the evaporation chamber is communicated to a heater through a circulating pump, the top of the heater is communicated to the evaporation chamber through a pipeline, the heater of the first-effect evaporator is communicated with steam, the evaporation chamber of the second-effect evaporator is communicated with a condenser, and the condenser is communicated to a vacuum pump through a pipeline; the refining kettle is communicated to a heater of the first-effect evaporator through a pipeline, and an evaporation chamber of the second-effect evaporator is communicated to the centrifuge through a pipeline. The purity of the product is improved by double-effect evaporation.
Be equipped with static mixer on the mixed charge-in pipeline, make chlorine and the better mixture of brine, the reaction is more complete, fully improves the extraction rate of bromine.
The feed end of the centrifuge is connected with a thick kettle, and the top of the thick kettle is connected with a swirler. Through the buffering of thick cauldron and swirler, make the liquid that gets into thick cauldron by abundant evaporation, improved the purity of centrifugation back product.
Drawings
The utility model is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
wherein: 1. blowing out of the tower; 2. a mixed feed conduit; 3. a brine feed pipeline; 4. a chlorine gas feed line; 5. a fan; 6. a first-stage absorption tower; 7. a secondary absorption tower; 8. a third stage absorption tower; 9. an absorption liquid storage tank; 10. a refining kettle; 11. a reducing acid feed line; 12. a first-effect evaporator; 13. a second effect evaporator; 14. a centrifuge; 15. a solid calcium bromide storage tank; 16. a liquid calcium bromide storage tank; 17. a shower head; 18. an absorption liquid circulating pump; 19. an absorbent preparation tank; 20. a first absorbent overflow conduit; 21. a second absorbent overflow conduit; 22. a plate-and-frame filter press; 23. a refined liquid storage tank; 24. an evaporation chamber; 25. a circulation pump; 26. a heater; 27. steam; 28. a condenser; 29. a vacuum pump; 30. a static mixer; 31. a thick kettle; 32. a swirler; 33. an absorbent feed pump; 34. an absorption liquid overflow pipeline.
Detailed Description
The utility model is further illustrated below with reference to the figures and examples.
As shown in fig. 1, a calcium bromide production device comprises a blow-off tower 1, wherein the blow-off tower 1 is connected with a mixed feeding pipeline 2, the mixed feeding pipeline 2 is respectively communicated with a brine feeding pipeline 3 and a chlorine feeding pipeline 4, the lower part of the blow-off tower 1 is communicated with a fan 5 through a pipeline, the top of the blow-off tower 1 is communicated with an absorption tower through a pipeline, and the absorption tower is communicated with an absorption liquid storage tank 9 through a pipeline; the absorption liquid storage tank 9 is communicated with a refining kettle 10 through a pipeline, the top of the refining kettle 10 is communicated with a reducing acid feeding pipeline 11, the bottom of the refining kettle 10 is communicated with an evaporator through a pipeline, the evaporator is communicated with a centrifugal machine 14 through a pipeline, a solid phase outlet of the centrifugal machine 14 is communicated with a solid calcium bromide storage tank 15, a liquid phase outlet of the centrifugal machine 14 is communicated with a mother liquid tank, and the mother liquid tank is communicated with a liquid calcium bromide storage tank 16. The chlorine and brine formed oxidation liquid sprays from the top of the blowing tower 1 and contacts with the air blown from the fan 5 at the bottom of the blowing tower 1 in a countercurrent manner, bromine in the oxidation liquid is blown out and enters the absorption tower to be absorbed by calcium hydroxide in the absorption tower to form absorption liquid, the absorption liquid is a mixed liquid of calcium bromide and calcium bromate, the calcium bromate in the absorption liquid reacts with reducing acid in the refining kettle 10 to generate calcium bromide, and then the liquid in the refining kettle 10 is evaporated and centrifuged to obtain a calcium bromide product. In the whole process, strong acidic raw materials such as hydrobromic acid are not required to be added, the risks of storage and operation are reduced, simultaneously, brine with the lowest price is directly used as the raw material, the production cost is greatly reduced, calcium bromide in two forms of solid and liquid is finally obtained after centrifugation, and the requirements of various customers are met.
The mixed feed pipe 2 extends into the blow-off tower 1 and is provided with a plurality of spray headers 17. The oxidizing liquid is uniformly dispersed and falls down from the top of the blowing tower 1 through a plurality of nozzles, so that the bromine can be blown out by air better, the waste of raw materials is avoided, and the yield is improved.
The absorption tower comprises a primary absorption tower 6, a secondary absorption tower 7 and a tertiary absorption tower 8 which are sequentially communicated through a pipeline, the primary absorption tower 6 is communicated with the top of the blow-out tower 1 through a pipeline, and the top of the tertiary absorption tower 8 is communicated to the fan 5 through a pipeline; the first-stage absorption tower 6, the second-stage absorption tower 7 and the third-stage absorption tower 8 are all provided with absorption liquid circulating pumps 18. Through tertiary absorption, can thoroughly catch the bromine in the air, the raw materials high-usage has improved the yield, has also prevented simultaneously that unabsorbed bromine from spilling over to cause environmental pollution in the air.
The third-stage absorption tower 8 is communicated to an absorbent preparation tank 19 through an absorbent liquid supply pump 33, a first absorbent overflow pipeline 20 is arranged between the third-stage absorption tower 8 and the second-stage absorption tower 7, a second absorbent overflow pipeline 21 is arranged between the second-stage absorption tower 7 and the first-stage absorption tower 6, and the first absorbent overflow pipeline 20 and the second absorbent overflow pipeline 21 enable absorbent to overflow from the third-stage absorption tower 8 to the second-stage absorption tower 7 and then to overflow to the first-stage absorption tower 6; the primary absorption tower 6 is communicated to the absorption liquid storage tank 9 through an absorption liquid overflow pipeline 34. The absorbent overflows to the second-stage absorption tower 7 from the third-stage absorption tower 8, then overflows to the first-stage absorption tower 6 from the second-stage absorption tower 7, finally enters into the absorption liquid storage tank 9 from the first-stage absorption tower 6, only the index of the absorption liquid in the first-stage absorption tower 6 needs to be controlled after the third-stage absorption, and the concentration of the calcium hydroxide in the first-stage absorption tower 6 can be adjusted more conveniently.
The refining kettle 10 is communicated with a plate-and-frame filter press 22 through a pipeline, a liquid phase outlet of the plate-and-frame filter press 22 is communicated with a refined liquid storage tank 23 through a pipeline, the refined liquid storage tank 23 is communicated with the evaporator through a pipeline, and a slag outlet of the plate-and-frame filter press 22 is communicated with the absorbent preparation tank 19 through a pipeline. The liquid obtained by filter pressing is refined, the obtained slag body can be recycled continuously in a mode of preparing an absorbent, the waste of raw materials is avoided, and meanwhile, the yield of the product can be improved to a small extent through recycling of the slag body.
The evaporator comprises a first-effect evaporator 12 and a second-effect evaporator 13 which are sequentially communicated through a pipeline, the first-effect evaporator 12 and the second-effect evaporator 13 are both provided with an evaporation chamber 24, the bottom of the evaporation chamber 24 is communicated with a heater 26 through a circulating pump 25, the top of the heater 26 is communicated with the evaporation chamber 24 through a pipeline, the heater 26 of the first-effect evaporator 12 is communicated with steam 27, the evaporation chamber 24 of the second-effect evaporator 13 is communicated with a condenser 28, and the condenser 28 is communicated with a vacuum pump 29 through a pipeline; the refining kettle 10 is communicated to a heater 26 of the first-effect evaporator 12 through a pipeline, and an evaporation chamber 24 of the second-effect evaporator 13 is communicated to the centrifuge 14 through a pipeline. The purity of the product is improved by double-effect evaporation.
Be equipped with static mixer 30 on the mixed charge-in pipeline 2, make chlorine and the better mixture of brine, the reaction is more complete, fully improves the extraction rate of bromine.
The feed end of the centrifuge 14 is connected with a thick kettle 31, and the top of the thick kettle 31 is connected with a cyclone 32. Through the buffering of thick kettle 31 and swirler 32, the liquid that gets into thick kettle 31 is fully evaporated, has improved the purity of product after the centrifugation.
It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.
Claims (8)
1. A calcium bromide apparatus for producing, its characterized in that: the device comprises a blow-off tower, wherein the blow-off tower is connected with a mixed feeding pipeline which is respectively communicated with a brine feeding pipeline and a chlorine feeding pipeline, the lower part of the blow-off tower is communicated with a fan through a pipeline, the top of the blow-off tower is communicated with an absorption tower through a pipeline, and the absorption tower is communicated with an absorption liquid storage tank through a pipeline;
the absorption liquid storage tank is communicated with the refining kettle through a pipeline, the top of the refining kettle is communicated with a reducing acid feeding pipeline, the bottom of the refining kettle is communicated with an evaporator through a pipeline, the evaporator is communicated with the centrifugal machine through a pipeline, a solid phase outlet of the centrifugal machine is communicated with a solid calcium bromide storage tank, and a liquid phase outlet of the centrifugal machine is communicated with a liquid calcium bromide storage tank.
2. The calcium bromide production apparatus as claimed in claim 1, wherein: the mixed feeding pipeline extends into the blow-out tower and is provided with a plurality of spray headers.
3. The calcium bromide production apparatus as claimed in claim 1, wherein: the absorption tower comprises a primary absorption tower, a secondary absorption tower and a tertiary absorption tower which are sequentially communicated through a pipeline, the primary absorption tower is communicated with the top of the blow-out tower through a pipeline, and the top of the tertiary absorption tower is communicated to the fan through a pipeline;
and the primary absorption tower, the secondary absorption tower and the tertiary absorption tower are all provided with absorption liquid circulating pumps.
4. A calcium bromide production apparatus as claimed in claim 3, wherein: the third-stage absorption tower is communicated to an absorbent preparation tank through an absorbent liquid supply pump, a first absorbent overflow pipeline is arranged between the third-stage absorption tower and the second-stage absorption tower, a second absorbent overflow pipeline is arranged between the second-stage absorption tower and the first-stage absorption tower, and the first absorbent overflow pipeline and the second absorbent overflow pipeline enable the absorbent to overflow from the third-stage absorption tower to the second-stage absorption tower and then overflow to the first-stage absorption tower;
the first-stage absorption tower is communicated to the absorption liquid storage tank through an absorption liquid overflow pipeline.
5. The calcium bromide production apparatus as claimed in claim 4, wherein: the refining kettle is communicated with a plate-and-frame filter press through a pipeline, a liquid phase outlet of the plate-and-frame filter press is communicated to a refined liquid storage tank through a pipeline, the refined liquid storage tank is communicated to the evaporator through a pipeline, and a slag outlet of the plate-and-frame filter press is communicated to the absorbent preparation tank through a pipeline.
6. The calcium bromide production apparatus as claimed in claim 1, wherein: the evaporator comprises a first-effect evaporator and a second-effect evaporator which are sequentially communicated through a pipeline, the first-effect evaporator and the second-effect evaporator are respectively provided with an evaporation chamber, the bottom of the evaporation chamber is communicated to a heater through a circulating pump, the top of the heater is communicated to the evaporation chamber through a pipeline, the heater of the first-effect evaporator is communicated with steam, the evaporation chamber of the second-effect evaporator is communicated with a condenser, and the condenser is communicated to a vacuum pump through a pipeline;
the refining kettle is communicated to a heater of the first-effect evaporator through a pipeline, and an evaporation chamber of the second-effect evaporator is communicated to the centrifuge through a pipeline.
7. The calcium bromide production apparatus as claimed in claim 1, wherein: and a static mixer is arranged on the mixed feeding pipeline.
8. The calcium bromide production apparatus as claimed in claim 1, wherein: the feed end of the centrifuge is connected with a thick kettle, and the top of the thick kettle is connected with a swirler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122888536.XU CN216224401U (en) | 2021-11-22 | 2021-11-22 | Calcium bromide apparatus for producing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122888536.XU CN216224401U (en) | 2021-11-22 | 2021-11-22 | Calcium bromide apparatus for producing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216224401U true CN216224401U (en) | 2022-04-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122888536.XU Active CN216224401U (en) | 2021-11-22 | 2021-11-22 | Calcium bromide apparatus for producing |
Country Status (1)
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| CN (1) | CN216224401U (en) |
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2021
- 2021-11-22 CN CN202122888536.XU patent/CN216224401U/en active Active
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