CN215249601U - Crystallization system - Google Patents
Crystallization system Download PDFInfo
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- CN215249601U CN215249601U CN202120162629.1U CN202120162629U CN215249601U CN 215249601 U CN215249601 U CN 215249601U CN 202120162629 U CN202120162629 U CN 202120162629U CN 215249601 U CN215249601 U CN 215249601U
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Abstract
The utility model discloses a crystallization system, which comprises a crystallization tank, a material crushing device and a fine crystal tank, wherein the crystallization tank comprises a crystallization tank body, a crystallization overflow pipe arranged on the side wall of the crystallization tank body and a platform support arranged at the top of the crystallization tank body; the material crushing device comprises a crusher support arranged on the platform support and a crusher arranged on the crusher support, and the low-sodium carnallite passes through the crusher to enter the crystallizing tank. The utility model provides a crystallization system is equipped with material crushing device, and low sodium carnallite gets into the crystallizer after the breakage, and the uneven granule of size becomes even in the low sodium carnallite for low sodium carnallite decomposes speed unanimously in the crystallizer, and the decomposition water yield is controlled easily, is favorable to the control of crystallizer grain size, promotes the rate of recovery of crystallization process.
Description
Technical Field
The utility model relates to a potassium chloride production technical field especially relates to a crystallization system.
Background
The Qinghai province is a large resource province, natural resources are various, representative resources are salt lake resources, the Carlo salt lake is the largest chloride type salt lake in China and mainly comprises deposition resources and brine resources, salt lake brine belongs to liquid chloride mineral resources and is rich in various components, raw ore carnallite is obtained by solarization and evaporation of the salt lake brine through a salt field beach, and the raw ore carnallite can be processed to prepare potassium chloride.
The processes for producing the potash fertilizer by utilizing the carnallite in the salt lake brine are various, and the reverse flotation-cold crystallization process is an advanced process in large-scale production. When the potassium chloride is produced by the reverse flotation-cold crystallization process, the raw ore carnallite pulp is subjected to reverse flotation to obtain low-sodium carnallite slurry, the low-sodium carnallite slurry enters a crystallizer, water or circulating mother liquor is added for decomposition and crystallization to obtain crude potassium slurry, the crude potassium slurry is subjected to dehalogenation and washing to obtain refined potassium slurry, and the refined potassium slurry is subjected to dehalogenation to obtain refined potassium.
The working procedure of the crystallizer is a key working procedure of a reverse flotation-cold crystallization process, and the decomposition and crystallization effect of the low-sodium carnallite in the crystallizer is a key for controlling the yield and the granularity of the potassium chloride. The carnallite is formed in the salt pan by natural beach solarization and evaporation, is influenced by factors such as brine quality, natural environment and the like, the size of carnallite particles is generally uneven, so that the decomposition speed of the carnallite in the crystallizer is inconsistent, the control of the decomposition water amount is easy to deviate, the waste of low-sodium carnallite resources is caused, the yield of the crystallizer is low, if the decomposed fresh water is too little, the large-particle carnallite cannot be decomposed and is discharged along with the bottom flow of the crystallizer, the waste is caused, if the decomposed fresh water is too much, the small-particle crystallized potassium chloride is also dissolved into mother liquor and is discharged along with the overflow of the crystallizer, and the waste is also caused.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a crystallization system is in order to solve among the prior art not uniform in size so that the decomposition water yield is wayward, resource waste, the problem that the crystallizer yield is low easily appear.
In order to achieve the above object, the present invention provides the following technical solutions: a crystallization system comprises a crystallization tank, a material crushing device and a fine grain tank, wherein the crystallization tank comprises a crystallization tank body, a crystallization overflow pipe arranged on the side wall of the crystallization tank body and a platform support arranged at the top of the crystallization tank body; the material crushing device comprises a crusher support arranged on the platform support and a crusher arranged on the crusher support, and the low-sodium carnallite passes through the crusher to enter the crystallizing tank.
Further, the crystallizer is still including locating a internal center section of thick bamboo of crystallizer jar, the breaker is equipped with down the hopper, down the hopper extend to a center section of thick bamboo.
Further, the crystallizer is still including locating the internal crystallization agitator of crystallizer jar, the crystallization agitator is fixed in on the platform support.
Further, the fine grain jar includes the fine grain jar body, locates the circulation mother liquor pipe of fine grain jar body bottom, the top of the fine grain jar body with the crystallization overflow pipe intercommunication, circulation mother liquor pipe extends to the feed inlet of breaker.
Further, the fine grain tank also comprises a fine grain stirrer arranged in the fine grain tank body.
Compared with the prior art, the utility model provides a crystallization system has following advantage:
the utility model provides a crystallization system is equipped with material breaker in the entrance of crystallizer, and low sodium carnallite gets into the crystallizer after the breakage, and the uneven granule of size becomes even in the low sodium carnallite for low sodium carnallite decomposes speed unanimous in the crystallizer, and the crystallizer is controlled more stably, and the water yield of decomposition is controlled easily, is favorable to the control of crystallizer grain size, promotes the rate of recovery of crystallization process, avoids the wasting of resources.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. In the drawings:
fig. 1 is a schematic structural diagram of a crystallization system according to a preferred embodiment of the present invention.
Reference numerals:
1 crystallizing tank, 11 crystallizing tank bodies, 12 crystallizing overflow pipes, 13 platform supports, 14 central cylinders, 15 crystallizing stirrers, 2 material crushing devices, 21 crusher supports, 22 crushers, 221 blanking hoppers, 3 fine grain tanks, 31 fine grain tank bodies, 32 circulating mother liquor pipes and 33 fine grain stirrers.
Detailed Description
The present invention provides many applicable inventive concepts that can be embodied in a wide variety of specific contexts. The specific examples described in the following embodiments of the present invention are merely illustrative of specific embodiments of the present invention and do not constitute limitations on the scope of the invention.
The invention is further described with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, fig. 1 is a schematic structural diagram of a crystallization system according to a preferred embodiment of the present invention.
The embodiment is a crystallization system, the crystallization system comprises a crystallization tank 1, a material crushing device 2 and a fine crystal tank 3, the crystallization tank 1 comprises a crystallization tank body 11, a crystallization overflow pipe 12 arranged on the side wall of the crystallization tank body 11, and a platform support 13 arranged on the top of the crystallization tank body 11, the material crushing device 2 is arranged on the platform support 13, and the fine crystal tank 3 is communicated with the crystallization tank 1 through the crystallization overflow pipe 12; the material crushing device 2 comprises a crusher support 21 arranged on the platform support 13 and a crusher 22 arranged on the crusher support 21, and the low-sodium carnallite enters the crystallizing tank 1 through the crusher 22.
The application provides a crystallization system is equipped with material breaker in the entrance of crystallizer, and low sodium carnallite gets into the crystallizer after the breakage, and the uneven granule of size becomes even in the low sodium carnallite for low sodium carnallite decomposes speed unanimous in the crystallizer, and the crystallizer is controlled more stably, and the decomposition water yield is controlled easily, is favorable to the control of crystallizer crystallization grain size, promotes the rate of recovery of crystallization process, avoids the wasting of resources.
Crystallizer 1 is used for low sodium carnallite to decompose the crystallization, adds water or circulation mother liquor as the decomposition liquid, decomposes the crystallization and obtains crude potassium ground paste and overflow liquid, wherein, crystallizer jar body 11 does crystallizer 1's main part, crude potassium ground paste certainly the underflow pump is passed through to crystallizer jar body 11's bottom and flows, and the overflow liquid certainly crystallization overflow pipe 12 flows extremely fine grain jar 3.
The platform support 13 is used for mounting the material crushing device, and plays a role in stabilizing.
The crystallizing tank 1 further comprises a central cylinder 14 arranged in the crystallizing tank body 11, the crusher 22 is provided with a discharging hopper 221, and the discharging hopper 221 extends to the central cylinder 14. The low-sodium carnallite enters the central cylinder 14 through the discharging hopper 221 of the crusher 22 for decomposition and crystallization, so that the material splashing is avoided.
Crystallizer 1 is still including locating crystallization agitator 15 in the crystallizer jar body 11, crystallization agitator 15 is fixed in on the platform support 13, crystallization agitator 15 is right material in the central section of thick bamboo 14 is stirred, and the effect of decomposing the crystallization is better.
In the material crushing device 2, the crusher support 21 is used for fixing the crusher 22, and the crusher 22 is used for crushing particles with different sizes in the low-sodium carnallite, so that the existence of large particles is reduced, the particle sizes of the particles are consistent as much as possible, and the control of the subsequent decomposition water amount is facilitated. The crusher 22 is provided with a feed inlet from which low sodium carnallite enters the crusher 22.
The fine grain tank 3 comprises a fine grain tank body 31 and a circulating mother liquor pipe 32 arranged at the bottom of the fine grain tank body 31, the top of the fine grain tank body 31 is communicated with the crystallization overflow pipe 12, and the circulating mother liquor pipe 32 extends to a feed inlet of the crusher 22.
And water is added into the fine crystal tank 3, so that overflow liquid is recycled as circulating mother liquor, the waste of potassium resources in the overflow liquid is avoided, the circulating mother liquor is conveyed to a feed inlet of the crusher 22 through a circulating pump, the circulating mother liquor and the low-sodium carnallite enter the crusher 22 together, the crushed low-sodium carnallite and the circulating mother liquor are fully mixed and then enter the central cylinder 14 of the crystallization tank 1, and the decomposition and crystallization effects are better.
The fine grain tank 3 further comprises a fine grain stirrer 33 arranged in the fine grain tank body 31, the fine grain stirrer 33 plays a role in stirring, and water and overflow liquid are mixed more uniformly.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim.
Claims (5)
1. A crystallization system is characterized by comprising a crystallization tank (1), a material crushing device (2) and a fine grain tank (3), wherein the crystallization tank (1) comprises a crystallization tank body (11), a crystallization overflow pipe (12) arranged on the side wall of the crystallization tank body (11) and a platform support (13) arranged at the top of the crystallization tank body (11), the crystallization tank (1) is communicated with the fine grain tank (3) through the crystallization overflow pipe (12), and the material crushing device (2) is arranged on the platform support (13); the material crushing device (2) comprises a crusher support (21) arranged on the platform support (13) and a crusher (22) arranged on the crusher support (21), and the low-sodium carnallite passes through the crusher (22) to enter the crystallizing tank (1).
2. A crystallisation system according to claim 1, wherein the crystallisation tank (1) further comprises a central drum (14) arranged within the crystallisation tank body (11), the crusher (22) being provided with a discharge hopper (221), the discharge hopper (221) extending to the central drum (14).
3. A crystallisation system according to claim 1, wherein the crystallisation tank (1) further comprises a crystallisation agitator (15) arranged within the crystallisation tank body (11), the crystallisation agitator (15) being fixed to the platform support (13).
4. A crystallization system according to claim 1, characterized in that the fine-grained tank (3) comprises a fine-grained tank body (31), a circulating mother liquor pipe (32) arranged at the bottom of the fine-grained tank body (31), the top of the fine-grained tank body (31) is communicated with the crystal overflow pipe (12), and the circulating mother liquor pipe (32) extends to the feed inlet of the crusher (22).
5. A crystallization system according to claim 4, characterized in that said fine crystal tank (3) further comprises a fine crystal stirrer (33) provided in said fine crystal tank body (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120162629.1U CN215249601U (en) | 2021-01-21 | 2021-01-21 | Crystallization system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120162629.1U CN215249601U (en) | 2021-01-21 | 2021-01-21 | Crystallization system |
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| CN215249601U true CN215249601U (en) | 2021-12-21 |
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| CN202120162629.1U Active CN215249601U (en) | 2021-01-21 | 2021-01-21 | Crystallization system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114669076A (en) * | 2022-03-30 | 2022-06-28 | 上海东庚化工技术有限公司 | Micro-melt crystallization and falling film crystallization combined material purification system and method |
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2021
- 2021-01-21 CN CN202120162629.1U patent/CN215249601U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114669076A (en) * | 2022-03-30 | 2022-06-28 | 上海东庚化工技术有限公司 | Micro-melt crystallization and falling film crystallization combined material purification system and method |
| CN114669076B (en) * | 2022-03-30 | 2023-03-28 | 上海东庚化工技术有限公司 | Micro-melt crystallization and falling film crystallization combined material purification system and method |
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