CN221084707U - Sodium chloride sodium sulfate divides matter crystallization device in chemical industry salt waste - Google Patents
Sodium chloride sodium sulfate divides matter crystallization device in chemical industry salt waste Download PDFInfo
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- CN221084707U CN221084707U CN202322656230.0U CN202322656230U CN221084707U CN 221084707 U CN221084707 U CN 221084707U CN 202322656230 U CN202322656230 U CN 202322656230U CN 221084707 U CN221084707 U CN 221084707U
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- sodium chloride
- stirrer
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- 150000003839 salts Chemical class 0.000 title claims abstract description 59
- 238000002425 crystallisation Methods 0.000 title abstract description 14
- 230000008025 crystallization Effects 0.000 title abstract description 14
- 239000002699 waste material Substances 0.000 title description 6
- 239000000126 substance Substances 0.000 title description 4
- XIUMQSREFXCDGE-UHFFFAOYSA-L S(=O)(=O)([O-])O.[Na+].[Cl-].[Na+] Chemical compound S(=O)(=O)([O-])O.[Na+].[Cl-].[Na+] XIUMQSREFXCDGE-UHFFFAOYSA-L 0.000 title description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims abstract description 61
- 239000007788 liquid Substances 0.000 claims abstract description 37
- 239000011780 sodium chloride Substances 0.000 claims abstract description 30
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims abstract description 28
- 229910052938 sodium sulfate Inorganic materials 0.000 claims abstract description 28
- 235000011152 sodium sulphate Nutrition 0.000 claims abstract description 28
- 238000007790 scraping Methods 0.000 claims abstract description 22
- 239000002894 chemical waste Substances 0.000 claims abstract description 17
- 238000001640 fractional crystallisation Methods 0.000 claims abstract description 17
- 238000003756 stirring Methods 0.000 claims description 45
- 239000000706 filtrate Substances 0.000 claims description 23
- 239000012535 impurity Substances 0.000 claims description 8
- 239000002893 slag Substances 0.000 claims description 7
- 238000007599 discharging Methods 0.000 claims description 4
- 238000000926 separation method Methods 0.000 abstract description 19
- 238000000034 method Methods 0.000 description 14
- 239000000203 mixture Substances 0.000 description 11
- 239000013078 crystal Substances 0.000 description 10
- 239000007787 solid Substances 0.000 description 9
- 239000000243 solution Substances 0.000 description 8
- 239000012528 membrane Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 239000012452 mother liquor Substances 0.000 description 5
- 238000001728 nano-filtration Methods 0.000 description 5
- 239000011734 sodium Substances 0.000 description 5
- 239000012065 filter cake Substances 0.000 description 4
- 239000002920 hazardous waste Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 239000010413 mother solution Substances 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 239000012266 salt solution Substances 0.000 description 3
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 238000012824 chemical production Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000000967 suction filtration Methods 0.000 description 1
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- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
The utility model belongs to the technical field of crystallization equipment, and relates to a sodium chloride and sodium sulfate fractional crystallization device in chemical waste salt, which comprises a stirrer, a scraper, a reactor, a solid-liquid separator, a heat exchange medium inlet pipe and a heat exchange medium outlet pipe; a jacket is arranged on the outer wall of the reactor; the heat exchange medium inlet pipe and the heat exchange medium outlet pipe are respectively communicated with the inside of the jacket, the bottom of the reactor is communicated with the top of the solid-liquid separator, and the side part of the solid-liquid separator is also communicated with the side part of the reactor; the stirrer extends into the reactor from the top of the reactor; the scraping plate is arranged in the reactor and positioned below the stirrer, and is connected with the stirrer. The sodium chloride and sodium sulfate fractional crystallization device in the chemical waste salt provided by the utility model has the advantages of simple structure and simple separation process.
Description
Technical Field
The utility model belongs to the technical field of crystallization equipment, and relates to a sodium chloride and sodium sulfate fractional crystallization device which is used for separating sodium chloride and sodium sulfate from chemical waste salt.
Background
Solid waste salts produced during chemical production, which often contain such an amount of organics or other impurities that the salt cannot be reused, are classified as hazardous waste; however, as the main soluble salts in the hazardous waste salt are sodium chloride and sodium sulfate, if the hazardous waste salt is separated from the chemical waste salt, the treatment capacity of the hazardous waste salt can be reduced, the resource recycling can be realized, and the concept of green sustainable production is met.
The existing chemical industry salt separation technology mainly comprises a membrane method and a thermal method salt separation technology, the membrane method salt separation mainly realizes separation of sodium chloride and sodium sulfate through a nanofiltration membrane, the separation method has high performance requirements on the nanofiltration membrane, organic matters in waste salt can influence the nanofiltration membrane, the nanofiltration membrane needs to be treated after long-time use, otherwise, the service life of the nanofiltration membrane is shortened, the treatment cost is high, and the treatment process is complex; the separation of sodium chloride and sodium sulfate is realized mainly by utilizing the difference of solubility at different temperatures by adopting a thermal method for separating salt, and the separation effect is poor because the crystallization salt in the waste salt adheres to the wall; to improve the separation effect, more equipment is required, resulting in a complicated separation process and a long separation time.
Disclosure of utility model
Aiming at the technical problems of complex process and more equipment in the existing sodium chloride and sodium sulfate separation crystallization, the utility model provides a sodium chloride and sodium sulfate fractional crystallization device in chemical waste salt, which has the advantages of simple structure and simple separation process.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
A sodium chloride and sodium sulfate fractional crystallization device in chemical waste salt comprises a stirrer, a scraping plate, a reactor, a solid-liquid separator, a heat exchange medium inlet pipe and a heat exchange medium outlet pipe; a jacket is arranged on the outer wall of the reactor; the heat exchange medium inlet pipe and the heat exchange medium outlet pipe are respectively communicated with the inside of the jacket, the bottom of the reactor is communicated with the top of the solid-liquid separator, and the side part of the solid-liquid separator is also communicated with the side part of the reactor; the stirrer extends into the reactor from the top of the reactor; the scraping plate is arranged in the reactor and positioned below the stirrer, and is connected with the stirrer.
Further defined, the scrapers are located below the stirring rod and are in contact with the bottom of the reactor and the inner wall of the reactor, respectively.
Further defined, the bottom of the reactor is a downward cone structure, and the shape of the scraping plate is matched with the shape of the bottom of the reactor.
Further defined, the upper side wall of the reactor is also externally connected with a mixed salt feeding pipe communicated with the interior of the reactor, and the mixed salt feeding pipe is positioned above the jacket.
Further limiting, arranging a filtrate circulation inlet on the upper side wall of the reactor, arranging a filtrate outlet on the side wall of the solid-liquid separator, and communicating the filtrate outlet with the filtrate circulation inlet through a filtrate circulation pipe; the height position of the filtrate circulation inlet is arranged between the impurity salt feeding pipe and the jacket.
Further limited, the bottom of the solid-liquid separator is also communicated with a slag discharging pipe.
Further defined, the stirrer comprises a stirring rod and stirring blades arranged on the stirring rod, wherein one end of the stirring rod with the stirring blades extends into the reactor from the top of the reactor; the scraping plate is positioned below the stirring rod and is respectively contacted with the bottom of the reactor and the inner wall of the reactor, and the scraping plate is connected with the stirring rod.
Further defined, the agitator further comprises a motor disposed outside the reactor and coupled to the agitator bar.
Further defined, the screed is comprised of a support structure and a screed blade disposed on the support structure; the supporting structure is positioned below the stirring rod and connected with the stirring rod; the scraper blades are respectively contacted with the bottom of the reactor and the inner wall of the reactor.
Further defined, the support structure is a resilient support structure.
Compared with the traditional triple-effect evaporation crystallization process, the utility model has the beneficial effects that:
1. According to the invention, through the reactor, the solid-liquid separator and the jacket on the reactor, cold and hot fluids with different temperatures are introduced into the jacket and the crystallization temperature is precisely controlled circularly, the separated crystallization salt and mother liquor are introduced into the solid-liquid separator, the filtrate enters the reactor for the next procedure, the filter residue is used as a raw material or evaporated to dryness as a product according to the crystallization temperature and the composition, the process control points are fewer, the equipment is greatly reduced, the device structure is simple, and the separation process is simple.
2. The heat exchange medium inlet pipe and the heat exchange medium outlet pipe are matched with the jacket to provide the required working conditions for the reactor, and the crystallization separation is realized at the temperature of 0 ℃, 40 ℃ and 90 ℃ so as to improve the separation effect.
3. According to the utility model, the stirrer is arranged, and the scraping plate is arranged at the bottom of the stirrer, so that the effect of separating the crystal salt adhered to the wall is achieved, and the waste salt crystal and the mother solution can be separated and recycled.
Drawings
FIG. 1 is a schematic diagram of a fractional crystallization apparatus according to the present utility model;
Wherein:
1-a mixed salt feeding pipe; 2-a heat exchange medium inlet pipe; 3-jacket; 4-a stirrer; 5-scraping plate; 6, a motor; 7-a reactor; 8-a filtrate circulation pipe; 9-a solid-liquid separator; 10-a slag discharging pipe; 11-heat exchange medium outlet pipe.
Detailed Description
The utility model will now be described in detail with reference to the drawings and examples.
Referring to fig. 1, a sodium chloride and sodium sulfate fractional crystallization device in chemical waste salt comprises a stirrer 4, a scraper 5, a reactor 7, a solid-liquid separator 9, a heat exchange medium inlet pipe 2 and a heat exchange medium outlet pipe 11.
The jacket 3 is arranged on the outer wall of the reactor 7; the heat exchange medium inlet pipe 2 and the heat exchange medium outlet pipe 11 are respectively communicated with the inside of the jacket 3, and form a heat exchange loop to exchange heat for the reactor 7, the bottom of the reactor 7 is communicated with the top of the solid-liquid separator 9, and the side part of the solid-liquid separator 9 is also communicated with the side part of the reactor 7. The stirrer 4 extends into the reactor 7 from the top of the reactor 7; a scraper 5 is placed in the reactor 7 below the stirrer 4, and the scraper 5 is connected to the stirrer 4.
The jacket 3 is sleeved outside the reactor 7 from the bottom of the reactor 7 upwards, a cavity is formed between the jacket 3 and the reactor 7, and the heat exchange medium inlet pipe 2 and the heat exchange medium outlet pipe 11 are communicated with the jacket 3.
The jacket 3 is made of ordinary carbon steel, and the jacket 3 is also provided with an inlet and an outlet for water vapor, cooling water or other heating and cooling media, and the water vapor, the cooling water or other heating and cooling media are introduced into the jacket to play a role in heat preservation.
Cold and hot fluids with different temperatures can be introduced into the jacket 3 and circulated to realize the accurate control of crystallization temperature; the heat exchange medium inlet pipe 2 and the heat exchange medium outlet pipe 11 have the function of introducing different temperature circulation heat exchange mediums into the jacket 3 according to the process so as to keep the temperature in the reactor 7 at the temperature required by the reactions such as 0 ℃, 40 ℃, 90 ℃ and the like.
Specifically, the temperature of 0 ℃ is that the heat exchange medium which is introduced into the jacket 3 through the heat exchange medium inlet pipe 2 is calcium chloride brine at the temperature of minus; the temperatures of 40 ℃ and 90 ℃ are realized by introducing a heat medium with corresponding temperature into the jacket 3 through the heat exchange medium inlet pipe 2; meanwhile, a thermocouple temperature probe is inserted into the reactor 7 to measure the temperature, so that the temperature can meet the temperature requirement of fractional crystallization.
The upper side wall of the reactor 7 is also externally connected with a mixed salt feeding pipe 1 communicated with the interior of the reactor 7, and the mixed salt feeding pipe 1 is positioned above the jacket 3.
The reactor 7 is of an upper column and lower cone structure, a feed inlet is arranged at the upper part of the left side of the reactor 7, and a mixed salt feed pipe 1 outside the reactor 7 is communicated with the inside of the reactor 7 through the feed inlet.
The reactor 7 is a sealed vessel, and mainly performs chemical reaction, and is made of stainless steel.
A filtrate circulation inlet is formed in the side wall on the right side of the reactor 7, a filtrate outlet is formed in the side wall on the right side of the solid-liquid separator 9, and the filtrate outlet is communicated with the filtrate circulation inlet through a filtrate circulation pipe 8; the height position of the filtrate circulation inlet is arranged between the impurity salt feeding pipe 1 and the jacket 3.
The solid-liquid separator 9 implements means for separating solids from liquids in the mixture, and when the cake thickness is no longer increasing and the solution entering the separator is clear and free of solid impurities, the filter cake is collected. The bottom of the solid-liquid separator 9 is also communicated with a slag discharging pipe 10.
Specifically, the stirrer 4 includes a stirring rod and stirring blades disposed on the stirring rod, and one end of the stirring rod with the stirring blades extends into the reactor 7 from the top of the reactor 7.
Further, the stirrer 4 further comprises a motor 6, the motor 6 is arranged outside the reactor 7 and connected with the stirring rod, and the stirring rod is driven to rotate by the motor 6, so that the stirring blades stir the materials in the reactor 7.
The motor 6 is used to drive the stirrer 4 and is mounted on the reactor 7 when implemented.
The stirrer 4 is a lifting stirrer, and the stirring and mixing of the liquid or the solid are achieved by rotating a stirring rod and stirring blades.
Further, the scraping plate 5 is positioned below the stirring rod and is respectively contacted with the bottom of the reactor 7 and the inner wall of the reactor 7, and the scraping plate 5 is connected with the stirring rod; the scraping plate 5 is mainly used for scraping materials in the reactor 7, so that the effect of separating the crystallized salt from the sticky wall is achieved.
Specifically, the scraping plate 5 is composed of a supporting structure and scraping plate blades arranged on the supporting structure; the supporting structure is positioned below the stirring rod and connected with the stirring rod; the scraper blades are respectively contacted with the bottom of the reactor 7 and the inner wall of the reactor 7. Because the bottom of the reactor is a cone structure with downward cone tips, the shape of the scraper blade is matched with the shape of the bottom of the reactor.
The supporting structure uses an elastic supporting structure, and plays a role of fixing the scraping plate 5 and providing pressure; one end of the supporting structure is fixed on the stirring rod, and the other end of the supporting structure is fixed on the scraper blade; the scraper blade can keep proper contact force and elasticity, so that the scraper blade is tightly attached to the inner wall of the reactor, the gap between the scraper blade and the inner wall of the reactor 7 is reduced, the accumulation of salt on the inner wall of the reactor 7 is prevented, the abrasion to the wall of the reactor is reduced, and the wall sticking salt is effectively scraped; the support structure is merely for connecting the stirring rod and the scraper blade, irrespective of the position of the reactor 7. In the implementation process, the stirrer 4 rotates to drive the scraping plate 5 to rotate in the kettle at the same time, and salt particles adhered to the inner wall of the reactor 7 are separated while stirring; in addition, in order to match the angle of the scraper 5, the stirrer 4 should have a lifting function, and the specific lifting can be realized by moving the motor and the stirrer up and down integrally by an external mechanical structure, that is, moving the penetration depth of the stirring blade in the reactor.
The crystallization device of the utility model realizes the temperature rising, temperature reducing, crystallization and separation of the waste salt solution to remove sodium chloride and sodium sulfate by using simple equipment through cyclic suction filtration.
The specific principle is as follows: (1) dissolving the mixed salt: since Na 2SO4 reaches the maximum solubility at 40 ℃, the mixed salt solution is stirred at 40 ℃ to dissolve Na 2SO4 to the maximum extent, and after stirring, insoluble substances are rapidly separated to keep the liquid in a clear state; (2) separating sodium sulfate: in the low temperature state, the Na 2SO4 has small solubility, but the change of the solubility of NaCl along with the temperature is small and can be almost ignored, so that Na 2SO4 crystals can be greatly separated out in the low temperature state; the solution after insoluble matter separation is kept at the temperature of 0 ℃ until a large amount of white crystals are separated out and filtered, and the crystals are dried, so that the obtained crystals are sodium sulfate; (3) separation of sodium chloride: since a large amount of Na 2SO4 crystals are precipitated at low temperature, naCl in an unsaturated state accounts for most of the solution; and evaporating water from the filtered mother solution to separate sodium chloride, and filtering to obtain NaCl crystals. Therefore, in the utility model, mixed salt is dissolved at 40 ℃, sodium sulfate is crystallized at 0 ℃ and sodium chloride is crystallized at 90 ℃, and the mixed salt and mother solution are recycled.
The specific process flow of the fractional crystallization is as follows.
The pretreated saturated brine enters a reactor 7 from a mixed salt feeding pipe 1, and is heated to the reactor 7 by controlling the temperature in the reactor 7 to be 40 ℃ through the mutual cooperation of a jacket 3, a heat exchange medium inlet pipe 2 and a heat exchange medium outlet pipe 11; simultaneously, the motor 6 is started, the stirrer 4 starts stirring, the pretreated saturated brine in the reactor 7 is dissolved to be saturated at the temperature of 40 ℃, undissolved salt and mother liquor form a mixture, the mixture enters the solid-liquid separator 9 from the bottom of the reactor 7, solids and liquid in the mixture are separated, when the thickness of a filter cake is not increased any more and the solution entering the solid-liquid separator is clear and has no solid impurities, filtrate returns to the reactor 7 through the circulating pipe 8, and filter residues are discharged from the slag tapping pipe 10 at the bottom of the solid-liquid separator 9 and collected as a mixed salt raw material for recycling.
After the process is finished, the temperature in the reactor 7 is controlled to be 0 ℃ through the mutual cooperation of the jacket 3, the heat exchange medium inlet pipe 2 and the heat exchange medium outlet pipe 11, and the reactor 7 is cooled; simultaneously, the motor 6 is started, the stirrer 4 starts stirring, the solution in the reactor 7 is cooled and crystallized at the temperature of 0 ℃, sodium sulfate crystal salt and mother liquor form a mixture, the mixture enters the solid-liquid separator 9 from the bottom of the reactor 7, solids and liquid in the mixture are separated, when the thickness of a filter cake is not increased any more and the solution entering the solid-liquid separator is clear and free of solid impurities, filtrate returns to the reactor 7 through the circulating pipe 8, filter residues are discharged from the slag discharge pipe 10 at the bottom of the solid-liquid separator 9, and the filter residues are evaporated to dryness to be used as a sodium sulfate target product.
After the process is finished, the reaction temperature is controlled to be 90 ℃ through the mutual matching of the jacket 3, the heat exchange medium inlet pipe 2 and the heat exchange medium outlet pipe 11, and the reactor 7 is heated; simultaneously, the motor 6 is started, the stirrer 4 starts stirring, the solution in the reactor 7 is evaporated and crystallized at the temperature of 90 ℃, sodium chloride crystal salt and mother liquor form a mixture, the mixture enters the solid-liquid separator 9 from the bottom of the reactor 7, solids and liquid in the mixture are separated, when the thickness of a filter cake is not increased any more and the solution entering the solid-liquid separator is clear and free of solid impurities, filtrate returns to the reactor 7 through the circulating pipe 8, filter residues are discharged from the slag discharge pipe 10 at the bottom of the solid-liquid separator 9, and the filter residues are evaporated to dryness to be used as a sodium chloride target product.
And (3) mixing the residual mother liquor after evaporation with the feed of the mixed salt feed pipe 1 in a reactor 7 in proportion, repeating the steps to separate sodium sulfate and sodium chloride, and repeating the process repeatedly.
Claims (10)
1. The sodium chloride and sodium sulfate fractional crystallization device in the chemical waste salt is characterized by comprising a stirrer (4), a scraper (5), a reactor (7), a solid-liquid separator (9), a heat exchange medium inlet pipe (2) and a heat exchange medium outlet pipe (11); a jacket (3) is arranged on the outer wall of the reactor (7); the heat exchange medium inlet pipe (2) and the heat exchange medium outlet pipe (11) are respectively communicated with the inside of the jacket (3), the bottom of the reactor (7) is communicated with the top of the solid-liquid separator (9), and the side part of the solid-liquid separator (9) is also communicated with the side part of the reactor (7); the stirrer (4) extends into the reactor (7) from the top of the reactor (7); the scraping plate (5) is arranged in the reactor (7) and is positioned below the stirrer (4), and the scraping plate (5) is connected with the stirrer (4).
2. The device for fractional crystallization of sodium chloride and sodium sulfate in chemical waste salt according to claim 1, wherein the scraping plate (5) is positioned below the stirring rod and is respectively contacted with the bottom of the reactor (7) and the inner wall of the reactor (7).
3. The sodium chloride and sodium sulfate fractional crystallization device in chemical waste salt according to claim 2, wherein the bottom of the reactor (7) is of a downward cone structure, and the shape of the scraping plate (5) is matched with the shape of the bottom of the reactor (7).
4. The sodium chloride and sodium sulfate fractional crystallization device in chemical waste salt according to claim 3, wherein the upper side wall of the reactor (7) is externally connected with a mixed salt feeding pipe (1) communicated with the interior of the reactor (7), and the mixed salt feeding pipe (1) is positioned above the jacket (3).
5. The device for separating and crystallizing sodium chloride and sodium sulfate in chemical waste salt according to claim 4, wherein a filtrate circulation inlet is arranged on the upper side wall of the reactor (7), a filtrate outlet is arranged on the side wall of the solid-liquid separator (9), and the filtrate outlet is communicated with the filtrate circulation inlet through a filtrate circulation pipe (8); the height position of the filtrate circulation inlet is arranged between the impurity salt feeding pipe (1) and the jacket (3).
6. The device for separating and crystallizing sodium chloride and sodium sulfate in chemical waste salt as claimed in claim 5, wherein a slag discharging pipe (10) is further communicated with the bottom of the solid-liquid separator (9).
7. The device for fractional crystallization of sodium chloride and sodium sulfate in chemical waste salt according to any one of claims 1-6, wherein the stirrer (4) comprises a stirring rod and stirring blades arranged on the stirring rod, and one end of the stirring rod with the stirring blades extends into the reactor (7) from the top of the reactor (7); the scraping plate (5) is positioned below the stirring rod and is respectively contacted with the bottom of the reactor (7) and the inner wall of the reactor (7), and the scraping plate (5) is connected with the stirring rod.
8. The device for fractional crystallization of sodium chloride and sodium sulfate in chemical waste salt according to claim 7, wherein the stirrer (4) further comprises a motor (6), and the motor (6) is arranged outside the reactor (7) and connected with a stirring rod.
9. The device for the fractional crystallization of sodium chloride and sodium sulfate in chemical waste salt according to claim 8, wherein the scraper (5) consists of a supporting structure and scraper blades arranged on the supporting structure; the supporting structure is positioned below the stirring rod and connected with the stirring rod; the scraper blades are respectively contacted with the bottom of the reactor (7) and the inner wall of the reactor (7).
10. The device for fractional crystallization of sodium chloride and sodium sulfate in chemical waste salt according to claim 9, wherein the support structure is an elastic support structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322656230.0U CN221084707U (en) | 2023-09-28 | 2023-09-28 | Sodium chloride sodium sulfate divides matter crystallization device in chemical industry salt waste |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322656230.0U CN221084707U (en) | 2023-09-28 | 2023-09-28 | Sodium chloride sodium sulfate divides matter crystallization device in chemical industry salt waste |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221084707U true CN221084707U (en) | 2024-06-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322656230.0U Active CN221084707U (en) | 2023-09-28 | 2023-09-28 | Sodium chloride sodium sulfate divides matter crystallization device in chemical industry salt waste |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221084707U (en) |
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2023
- 2023-09-28 CN CN202322656230.0U patent/CN221084707U/en active Active
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