CN216073087U - Brine refining device with gypsum and magnesium compound as by-products - Google Patents

Brine refining device with gypsum and magnesium compound as by-products Download PDF

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Publication number
CN216073087U
CN216073087U CN202122800556.7U CN202122800556U CN216073087U CN 216073087 U CN216073087 U CN 216073087U CN 202122800556 U CN202122800556 U CN 202122800556U CN 216073087 U CN216073087 U CN 216073087U
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magnesium
barrel
calcium
filter
refined
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王春生
马德春
张体良
冯树红
李志全
李全昶
张彪
韩庆龙
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Tangshan Sanyou Chemical Industries Co ltd
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Tangshan Sanyou Chemical Industries Co ltd
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Abstract

The utility model discloses a brine refining device for gypsum and magnesium compounds as byproducts, and relates to the technical field of brine refining preparation. The device comprises a salt dissolving barrel, a magnesium removing reactor, a calcium removing reactor, a belt filter, a primary brine barrel, a gypsum drying furnace, a refined magnesium filter and a refined magnesium drying furnace; the salt dissolving barrel is connected with the magnesium removal reactor, the magnesium removal reactor is connected with the magnesium clarifying barrel, the magnesium clarifying barrel is respectively connected with the crude magnesium filter and the calcium removal reactor, the calcium removal reactor is connected with the calcium clarifying barrel, the calcium clarifying barrel is respectively connected with the primary salt water barrel and the belt filter, and the belt filter is respectively connected with the gypsum drying furnace, the calcium clarifying barrel and the salt dissolving barrel; the coarse magnesium filter is respectively connected with the magnesium clarifying barrel and the coarse magnesium dissolving barrel, the coarse magnesium dissolving barrel is connected with the fine magnesium filter, and the fine magnesium filter is respectively connected with the fine magnesium drying furnace, the salt melting barrel and the calcium removal reactor. This device is retrieved strong brine and washing water once more and is used for production system, does not have the secondary waste to discharge.

Description

Brine refining device with gypsum and magnesium compound as by-products
Technical Field
The utility model relates to the technical field of brine refining and preparation of gypsum and magnesium compounds, in particular to a brine refining device capable of producing gypsum and magnesium compounds as byproducts.
Background
In the production process of soda by an ammonia-soda process, the seawater is desalted and then the concentrated brine is used for dissolving the original salt to prepare brine, the concentrated brine, calcium and magnesium impurity ions, silt and the like in the original salt enter the brine after the seawater is desalted, and in order to ensure the quality of soda products, the crude brine is refined in a brine refining process. In the primary refining process of the brine, the lime milk and the mirabilite are simultaneously added into the crude brine, magnesium ions and partial calcium ions in the crude brine are removed, and the generated magnesium hydroxide precipitate, the dihydrate calcium sulfate precipitate and solid impurities in the seawater desalination strong brine, the raw salt and the lime milk are jointly settled in a clarifying barrel to form a multi-component complex mixture, namely salt slurry, such as calcium sulfate, magnesium hydroxide, calcium carbonate, sodium chloride, acid insoluble substances and the like. In order to recover sodium chloride in the salt slurry, the salt slurry in the clarifying barrel is washed and filter-pressed, filtrate light salt water is returned to the salt dissolving process, and the salt slurry filter cake is used for damming, road repairing or stockpiling treatment.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problems, the utility model provides a brine refining device for gypsum and magnesium compounds as by-products.
In order to realize the technical purpose, the utility model adopts the following scheme: the brine refining device for the byproduct gypsum and magnesium compound comprises a salt dissolving barrel, a magnesium removal reactor, a magnesium clarifying barrel or an air flotation device, a crude magnesium filter, a calcium removal reactor, a calcium clarifying barrel, a belt filter, a primary brine barrel, a gypsum drying furnace, a refined magnesium filter and a refined magnesium drying furnace; the salt dissolving barrel is connected with the magnesium removal reactor, the magnesium removal reactor is connected with the magnesium clarifying barrel or the air flotation device, the magnesium clarifying barrel or the air flotation device is respectively connected with the crude magnesium filter and the calcium removal reactor, the calcium removal reactor is connected with the calcium clarifying barrel, the calcium clarifying barrel is respectively connected with the primary brine barrel and the belt filter, and the belt filter is respectively connected with the gypsum drying furnace, the calcium clarifying barrel and the salt dissolving barrel; the outlet of the coarse magnesium filter is respectively connected with a magnesium clarifying barrel or an air flotation device and a coarse magnesium dissolving barrel, the coarse magnesium dissolving barrel is connected with a filter press, the filter press is connected with a fine magnesium reactor, the fine magnesium reactor is connected with a fine magnesium filter, and the fine magnesium filter is respectively connected with a fine magnesium drying furnace, a salt dissolving barrel and a calcium removing reactor.
Compared with the prior art, the utility model has the beneficial effects that: the device recycles strong brine and washing water generated in the reaction process for the production system again, and no secondary waste is discharged. On the premise of ensuring the quality of primary brine, brine is refined step by step, salt mud which occupies a large amount of land and is piled up is recycled and comprehensively utilized to produce magnesium series compounds and semi-hydrated gypsum with high added values, waste is changed into valuable, and the problem of salt mud piling up in the production of soda ash is greatly relieved.
The preferred scheme of the utility model is as follows:
the salt dissolving barrel is connected with a crude salt water buffer barrel, and the crude salt water buffer barrel is connected with the magnesium removal reactor through a delivery pump.
The crude magnesium filter is connected with a crude magnesium mother liquor barrel, and the crude magnesium mother liquor barrel is connected with the calcium removal reactor through a delivery pump.
The device also comprises a sulfuric acid barrel, and the sulfuric acid barrel is connected with the crude magnesium dissolving barrel through a delivery pump.
The magnesium sulfate filter press is connected with the magnesium sulfate buffer barrel, and the magnesium sulfate buffer barrel is connected with the refined magnesium reactor through a delivery pump.
The device also comprises a storage bin which is connected with the refined magnesium reactor.
The refined magnesium filter is respectively connected with a refined magnesium washing bucket and a refined magnesium mother liquor bucket, the refined magnesium washing bucket is connected with the salt dissolving bucket, and the refined magnesium mother liquor bucket is connected with the calcium removal reactor.
The belt filter is respectively connected with a calcium mother liquid barrel and a calcium washing water barrel, the calcium mother liquid barrel is connected with a calcium clarifying barrel, and the calcium washing water barrel is connected with a salt dissolving barrel.
Drawings
FIG. 1 is a schematic diagram showing the apparatus connection of a brine refining apparatus for gypsum and magnesium compounds as by-products according to an embodiment of the present invention;
labeled as: 1. a salt dissolving barrel; 2. a crude brine buffer tank; 3. a crude brine pump; 4. a magnesium removal reactor; 5. a magnesium clarifying barrel; 6. a calcium removal reactor; 7. a calcium clarifying tank; 8. a primary brine barrel; 9. a primary brine pump; 10. a magnesium slurry pump; 11. a coarse magnesium filter; 12. a crude magnesium mother liquor barrel; 13. a crude magnesium mother liquor pump; 14. a coarse magnesium conveyor belt; 15. a sulfuric acid bucket; 16. adding an acid pump; 17. a crude magnesium dissolving barrel; 18. a feeding pump; 19. a filter press; 20. a coarse calcium conveying belt; 21. a magnesium sulfate buffer barrel; 22. a magnesium sulfate pump; 23. a storage bin; 24. a refined magnesium reactor; 25. a refined magnesium filter; 26. a refined magnesium washing bucket; 27. a refined magnesium washing water pump; 28. a refined magnesium mother liquor barrel; 29. a refined magnesium mother liquor pump; 30. a refined magnesium conveying belt; 31. a refined magnesium drying furnace; 32. fine magnesium grinding, winnowing and conveying equipment; 33. a refined magnesium packaging machine; 34. a calcium slurry pump; 35. a belt filter; 36. a calcium mother liquor barrel; 37. a calcium mother liquor pump; 38. a calcium washing bucket; 39. a calcium wash pump; 40. a dihydrate gypsum conveyor belt; 41. a gypsum drying furnace; 42. gypsum grinding, winnowing and conveying equipment; 43. a gypsum packaging machine.
Detailed Description
The present invention will be described in detail with reference to the following embodiments in order to fully understand the objects, features and effects of the utility model, but the present invention is not limited thereto.
As shown in figure 1, the utility model provides a brine refining device for by-product gypsum and magnesium compounds, which comprises a salt dissolving barrel 1, a crude brine buffer barrel 2, a crude brine pump 3, a magnesium removal reactor 4, a magnesium clarifying barrel 5, a calcium removal reactor 6, a calcium clarifying barrel 7, a primary brine barrel 8, a primary brine pump 9, a magnesium slurry pump 10, a crude magnesium filter 11, a crude magnesium mother liquor barrel 12, a crude magnesium mother liquor pump 13, a crude magnesium conveying belt 14, a sulfuric acid barrel 15, an acid adding pump 16, a crude magnesium dissolving barrel 17, a feeding pump 18, a pressure filter 19, a crude calcium conveying belt 20, a magnesium sulfate buffer barrel 21, a magnesium sulfate pump 22, a storage bin 23, a refined magnesium reactor 24, a refined magnesium filter 25, a refined magnesium washing water barrel 26, a refined magnesium washing water pump 27, a refined magnesium mother liquor barrel 28, a refined magnesium mother liquor pump 29, a refined magnesium conveying belt 30, a refined magnesium drying furnace 31, a refined magnesium grinding and conveying device 32, a refined magnesium packing machine 33, a calcium 34, a refined magnesium packing machine 34, The device comprises a belt filter 35, a calcium mother liquor barrel 36, a calcium mother liquor pump 37, a calcium washing water barrel 38, a calcium washing water pump 39, a dihydrate gypsum conveying belt 40, a gypsum drying furnace 41, gypsum grinding, winnowing and conveying equipment 42 and a gypsum packing machine 43.
The salt dissolving barrel 1 is connected with the crude salt water buffer barrel 2 through a pipeline, the crude salt water buffer barrel 2 is connected with the magnesium removal reactor 4 through a crude salt water pump 3 and a matched pipeline, and the magnesium removal reactor 4 is connected with the magnesium clarifying barrel 5 (or an air flotation device) through a pipeline. Magnesium clarification tank 5 (or air supporting device) is connected with calcium removal reactor 6 through the pipeline, and calcium removal reactor 6 passes through the chute and is connected with calcium clarification tank 7, and calcium clarification tank 7 passes through the pipeline and is connected with primary brine bucket 8, and primary brine bucket 8 passes through the pipeline and is connected with primary brine pump 9.
The calcium clarifying barrel 7 is also connected with a belt filter 35 through a calcium slurry pump 34 and a matched pipeline, the belt filter 35 is connected with a gypsum drying furnace 41 through a dihydrate gypsum conveying belt 40, and the gypsum drying furnace 41 is connected with a gypsum packing machine 43 through gypsum grinding, winnowing and conveying equipment 42.
The belt filter 35 is also connected with a calcium mother liquor barrel 36 and a calcium washing water barrel 38 through pipelines respectively, and the calcium mother liquor barrel 36 is connected with the calcium clarifying barrel 7 through a calcium mother liquor pump 37. The calcium washing water barrel 38 is connected with the salt dissolving barrel 1 through a calcium washing water pump 39.
The magnesium clarifying barrel 5 (or an air flotation device) is connected with a crude magnesium filter 11 through a magnesium slurry pump 10, the crude magnesium filter 11 is connected with a crude magnesium mother liquor barrel 12 through a pipeline, and the crude magnesium mother liquor barrel 12 is connected with the magnesium clarifying barrel 5 (or the air flotation device) through a crude magnesium mother liquor pump 13. The crude magnesium filter 11 is also connected with a crude magnesium conveying belt 14, the crude magnesium conveying belt 14 is connected with a crude magnesium dissolving barrel 17, and a sulfuric acid barrel 15 is connected with the crude magnesium dissolving barrel 17 through an acid adding pump 16. The crude magnesium dissolving barrel 17 is also connected with a filter press 19 through a feeding pump 18, and the filter press 19 is respectively connected with a crude calcium conveying belt 20 and a magnesium sulfate buffer barrel 21. The magnesium sulfate buffer barrel 21 is connected with a refined magnesium reactor 24 through a magnesium sulfate pump 22 and a matched pipeline. The stock bin 23 is connected with a refined magnesium reactor 24 through a blanking device and a matched pipeline, and the refined magnesium reactor 24 is connected with a refined magnesium filter 25. The refined magnesium filter 25 is connected with a refined magnesium drying furnace 31 through a refined magnesium conveying belt 30, and the refined magnesium drying furnace 31 is connected with a refined magnesium packing machine 33 through a refined magnesium grinding, winnowing and conveying device 32.
The refined magnesium filter 25 is also connected with a refined magnesium washing water barrel 26 and a refined magnesium mother liquor barrel 28 through pipelines respectively, and the refined magnesium washing water barrel 26 is connected with the salt dissolving barrel 1 through a refined magnesium washing water pump 27 and a matched pipeline; the refined magnesium mother liquor barrel 28 is connected with the calcium removal reactor 6 through a refined magnesium mother liquor pump 29 and a matched pipeline.
Gypsum and magnesium compounds are respectively obtained by removing calcium and magnesium step by step and are packaged, magnesium compound filtrate and gypsum filtrate generated in the reaction process are respectively returned to a magnesium clarifying barrel 5 and a calcium clarifying barrel 7, magnesium compound washing water and gypsum washing water are returned to a salt dissolving barrel 1, and by-products in the production process are completely recycled, so that comprehensive utilization of resources is effectively realized.
Finally, it is noted that: the above-mentioned list is only the preferred embodiment of the present invention, and naturally those skilled in the art can make modifications and variations to the present invention, which should be considered as the protection scope of the present invention provided they are within the scope of the claims of the present invention and their equivalents.

Claims (8)

1. A brine refining device for byproduct gypsum and magnesium compounds comprises a salt dissolving barrel, a magnesium removal reactor, a magnesium clarifying barrel or an air flotation device, a crude magnesium filter, a calcium removal reactor, a calcium clarifying barrel, a belt filter, a primary brine barrel, a gypsum drying furnace, a refined magnesium filter and a refined magnesium drying furnace; it is characterized in that the preparation method is characterized in that,
the salt dissolving barrel is connected with the magnesium removal reactor, the magnesium removal reactor is connected with the magnesium clarifying barrel or the air flotation device, the magnesium clarifying barrel or the air flotation device is respectively connected with the crude magnesium filter and the calcium removal reactor, the calcium removal reactor is connected with the calcium clarifying barrel, the calcium clarifying barrel is respectively connected with the primary brine barrel and the belt filter, and the belt filter is respectively connected with the gypsum drying furnace, the calcium clarifying barrel and the salt dissolving barrel;
the outlet of the coarse magnesium filter is respectively connected with a magnesium clarifying barrel or an air flotation device and a coarse magnesium dissolving barrel, the coarse magnesium dissolving barrel is connected with a filter press, the filter press is connected with a fine magnesium reactor, the fine magnesium reactor is connected with a fine magnesium filter, and the fine magnesium filter is respectively connected with a fine magnesium drying furnace, a salt dissolving barrel and a calcium removing reactor.
2. The brine refining device for byproduct gypsum and magnesium compound as claimed in claim 1, wherein the salt dissolving tank is connected with a crude brine buffer tank, and the crude brine buffer tank is connected with the magnesium removal reactor through a delivery pump.
3. The brine refining device for gypsum and magnesium compound as byproduct in claim 1, wherein the crude magnesium filter is connected to a crude magnesium mother liquor tank, and the crude magnesium mother liquor tank is connected to the calcium removal reactor through a transfer pump.
4. The brine refining device of the byproduct gypsum and magnesium compound as claimed in claim 1, further comprising a sulfuric acid tank connected to the crude magnesium dissolving tank by a transfer pump.
5. The brine refining device of byproduct gypsum and magnesium compound as claimed in claim 1, further comprising a magnesium sulfate buffer tank, wherein the filter press is connected with the magnesium sulfate buffer tank, and the magnesium sulfate buffer tank is connected with the refined magnesium reactor through a delivery pump.
6. The brine refining device of byproduct gypsum and magnesium compound as claimed in claim 1, further comprising a bin connected to the refined magnesium reactor.
7. The brine refining device for byproduct gypsum and magnesium compound as claimed in claim 1, wherein the refined magnesium filter is connected to a refined magnesium washing tank and a refined magnesium mother liquor tank, respectively, the refined magnesium washing tank is connected to the salt dissolving tank, and the refined magnesium mother liquor tank is connected to the calcium removal reactor.
8. The apparatus of claim 1, wherein the belt filter is connected to a calcium mother liquor tank and a calcium washing tank, respectively, the calcium mother liquor tank is connected to a calcium clarifying tank, and the calcium washing tank is connected to a salt dissolving tank.
CN202122800556.7U 2021-11-16 2021-11-16 Brine refining device with gypsum and magnesium compound as by-products Active CN216073087U (en)

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Application Number Priority Date Filing Date Title
CN202122800556.7U CN216073087U (en) 2021-11-16 2021-11-16 Brine refining device with gypsum and magnesium compound as by-products

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113830803A (en) * 2021-11-16 2021-12-24 唐山三友化工股份有限公司 Brine refining device and method for by-product gypsum and magnesium compound

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113830803A (en) * 2021-11-16 2021-12-24 唐山三友化工股份有限公司 Brine refining device and method for by-product gypsum and magnesium compound

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