CN203890073U - Production equipment of lithium sulfate purifying concentrate - Google Patents

Production equipment of lithium sulfate purifying concentrate Download PDF

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Publication number
CN203890073U
CN203890073U CN201420125756.4U CN201420125756U CN203890073U CN 203890073 U CN203890073 U CN 203890073U CN 201420125756 U CN201420125756 U CN 201420125756U CN 203890073 U CN203890073 U CN 203890073U
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China
Prior art keywords
outlet
vaporizer
import
lithium sulphate
triphane
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CN201420125756.4U
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Chinese (zh)
Inventor
周文龙
徐月和
冉建中
杜国山
李少华
邱爽
桑园
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China ENFI Engineering Corp
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China ENFI Engineering Corp
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Abstract

The utility model discloses production equipment for implementing a production method of lithium sulfate purifying concentrate. The production equipment comprises a rotary calcining kiln, a device for performing fine grinding on a beta-spodumene calcining material, an acidifying calcining kiln, a leaching tank, a filter device, a purifying filter device and an MVR (Mechanical Vapor Recompression) evaporator, wherein an inlet of the fine grinding device is connected with an outlet of the rotary calcining kiln; the acidifying calcining kiln is used for performing acidifying calcining on the beta-spodumene fine powder and sulfuric acid; an inlet of the acidifying calcining kiln is connected with a material discharge bin of the fine grinding device; the leaching tank is used for leaching the acidified clinker; an inlet of the leaching tank is connected with an outlet of the acidifying calcining kiln; the filter device is used for filtering the leached slurry; the purifying filter device is used for performing purification, impurity removal and filtration on the leachate; an inlet of the purifying filter device is connected with an outlet of the filter device; the MVR evaporator is used for performing evaporation and concentration on the lithium sulfate purifying liquid; an inlet of the MVR evaporator is connected with an outlet of the purifying filter device. By adopting the production equipment, the production cost of the lithium sulfate purifying concentrate can be reduced.

Description

Lithium Sulphate purifies the production unit of concentrated solution
Technical field
The utility model relates to the production unit that a kind of Lithium Sulphate purifies concentrated solution.
Background technology
In existing triphane sulfuric acid process, Lithium Sulphate purification concentrated solution production method is to utilize single-action or triple-effect evaporator to carry out evaporation concentration to Lithium Sulphate scavenging solution.Wherein, the actual need of triple-effect evaporator evaporation 1t water consumes 0.4-0.5t steam, approximately needs 80-100 unit (steam price is by 200 yuan/t).
Utility model content
The utility model is intended at least solve one of technical problem existing in prior art.For this reason, an object of the present utility model is to propose a kind of production unit that purifies the production method of concentrated solution for implementing Lithium Sulphate.
To achieve these goals, according to the utility model proposes a kind of production unit that purifies the production method of concentrated solution for implementing Lithium Sulphate, described production unit comprises: for roasting kiln transition of roasting that described triphane concentrate is made the transition; For the device that described β-triphane roasting material is carried out to fine grinding, the import of described fine grinding device is connected with roasting kiln outlet transition; For described β-triphane fine powder and described sulfuric acid are carried out to acidizing fired acidizing fired kiln, the import of described acidizing fired kiln is connected with the outlet feed bin of described fine grinding device; For the leaching vat that described acidifying grog is leached, the import of described leaching vat is connected with the outlet of described acidizing fired kiln; For the filtration unit that described leaching slurry is filtered, the import of described filtration unit is connected with described leaching vat outlet; For the filtration equipment for clarifying that leach liquor is carried out to purification and impurity removal filtration, the import of described filtration equipment for clarifying is connected with the outlet of described filtration unit; For described Lithium Sulphate scavenging solution being carried out to the MVR vaporizer of evaporation concentration, the import of described MVR vaporizer is connected with the outlet of described filtration equipment for clarifying.
According to of the present utility model for implementing the production unit of production method that Lithium Sulphate purifies concentrated solution by MVR vaporizer is set, thereby can utilize MVR vaporizer to carry out evaporation concentration to described Lithium Sulphate scavenging solution, thereby not only can reduce the production cost that described Lithium Sulphate purifies concentrated solution, and can reduce the floor space of described production unit.
The production unit that existing Lithium Sulphate purifies concentrated solution utilizes triple-effect evaporator to carry out evaporation concentration to Lithium Sulphate scavenging solution.Wherein, Lithium Sulphate scavenging solution evaporation 1t water need to consume 0.3t-0.4t steam, approximately needs 60-80 unit (price of steam is 200 yuan/t).And utilize the current consumption of the concentrated 1t water of MVR evaporator evaporation, be 40kwh-60kwh, about 20 yuan-30 yuan, the equipment reducing more than 50% takes up an area.
Described MVR vaporizer comprises: vaporizer, and the opening for feed of described vaporizer is connected with the outlet of described filtration unit; And compressor, the import of described compressor is connected with the vapour outlet of described vaporizer and outlet is connected with the steam-in of described vaporizer.
Described MVR vaporizer also comprises preheater, and the import of described preheater is connected with the outlet of described scavenging solution storage tank and outlet is connected with the opening for feed of described vaporizer.Can utilize thus described preheater to carry out preheating to described Lithium Sulphate scavenging solution, thereby can improve the vaporization efficiency of described vaporizer.
Described grading material device is high-pressure roller mill.
Additional aspect of the present utility model and advantage in the following description part provide, and part will become obviously from the following description, or recognize by practice of the present utility model.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present utility model and advantage accompanying drawing below combination obviously and is easily understood becoming the description of embodiment, wherein:
Fig. 1 purifies the schema of the production method of concentrated solution according to the Lithium Sulphate of the utility model embodiment;
Fig. 2 purifies the structural representation of MVR vaporizer of production unit of the production method of concentrated solution according to the utility model embodiment for implementing Lithium Sulphate.
MVR vaporizer 10, vaporizer 100, compressor 200, preheater 300
Embodiment
Describe embodiment of the present utility model below in detail, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Below by the embodiment being described with reference to the drawings, be exemplary, only for explaining the utility model, and can not be interpreted as restriction of the present utility model.
In description of the present utility model, it will be appreciated that, term " " center ", " longitudinally ", " laterally ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", orientation or the position relationship of indications such as " outward " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, rather than device or the element of indication or hint indication must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as restriction of the present utility model.In addition, term " first ", " second " be only for describing object, and can not be interpreted as indication or hint relative importance or the implicit quantity that indicates indicated technical characterictic.Thus, one or more these features can be expressed or impliedly be comprised to the feature that is limited with " first ", " second ".In description of the present utility model, except as otherwise noted, the implication of " a plurality of " is two or more.
In description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and for example, can be to be fixedly connected with, and can be also to removably connect, or connect integratedly; Can be mechanical connection, can be to be also electrically connected to; Can be to be directly connected, also can indirectly be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, can particular case understand the concrete meaning of above-mentioned term in the utility model.
The production method that purifies concentrated solution according to the Lithium Sulphate of the utility model embodiment is described below with reference to Fig. 1.As shown in Figure 1, according to the production method of the Lithium Sulphate purification concentrated solution of the utility model embodiment, comprise the following steps:
To the roasting that makes the transition of triphane concentrate, and obtain β-triphane roasting material;
β-triphane roasting material is carried out to fine grinding, and obtain β-triphane fine powder;
Described β-triphane fine powder mixed with sulfuric acid and carry out acidizing firedly, obtaining acidifying grog;
In described acidifying grog, add water, through sizing mixing, leach, filtering, obtain leach liquor.In other words, in acidifying grog, add wash water, the leaching slurry of sizing mixing to obtain.
Described leach liquor (leaching slurry) is carried out to purification and impurity removal filtration, and obtain Lithium Sulphate scavenging solution.That is to say, purification of leaching liquor filters to obtain Lithium Sulphate scavenging solution.
Utilize MVR vaporizer to carry out evaporation concentration to described Lithium Sulphate scavenging solution, and obtain described Lithium Sulphate purification concentrated solution.
The production method that purifies concentrated solution according to the Lithium Sulphate of the utility model embodiment is by utilizing MVR vaporizer to carry out evaporation concentration to described Lithium Sulphate scavenging solution, thereby not only can reduce the production cost that described Lithium Sulphate purifies concentrated solution, and can reduce to implement the floor space of production unit that described Lithium Sulphate purifies the production method of concentrated solution.
Existing Lithium Sulphate purifies the production method of concentrated solution and utilizes triple-effect evaporator to carry out evaporation concentration to Lithium Sulphate scavenging solution.Wherein, Lithium Sulphate scavenging solution evaporation 1t water need to consume 0.3t-0.4t steam, approximately needs 60-80 unit (price of steam is 200 yuan/t).And utilize the current consumption of the concentrated 1t water of MVR evaporator evaporation, be 40kwh-60kwh, about 20 yuan-30 yuan, the equipment reducing more than 50% takes up an area.
The production method that purifies concentrated solution according to the Lithium Sulphate of the utility model embodiment has the advantages such as running cost is low, energy consumption is low, the occupation of land of saving equipment.
Advantageously, can be under the condition of 1050 ℃-1100 ℃ to the roasting that makes the transition of described triphane concentrate.
In embodiment more of the present utility model, can utilize high-pressure roller mill to carry out selection by winnowing to described β-triphane roasting material, and obtain particle diameter and be less than or equal to described β-triphane fine powder of preset value and β-triphane particle that particle diameter is greater than described preset value.Then can utilize described high-pressure roller mill to carry out fine grinding to described β-triphane particle, and obtain described β-triphane fine powder that particle diameter is less than or equal to preset value.By utilizing described high-pressure roller mill to carry out selection by winnowing to described β-triphane roasting material, β-triphane fine powder that can first the particle diameter in described β-triphane roasting material be less than or equal to preset value is selected, thereby can reduce the material that enters fine grinding operation, reduce running cost and the energy consumption of fine grinding operation.
That is to say, utilize high-pressure roller mill to carry out fine grinding to described β-triphane roasting material, the concentrate of qualified particle diameter is preferentially selected, and the concentrate of off grade size reaches particle diameter requirement after fine grinding, can energy efficient, reduce the running cost of fine grinding operation.
Particularly, the particle diameter of described β-triphane fine powder can be within the scope of 95 order-200 objects.
Advantageously, the sulfuric acid that can be 93%-98% by concentration mixes with described β-triphane fine powder, then can the mixture of described β-triphane fine powder and described sulfuric acid be carried out described acidizing fired under the condition of 250 ℃-280 ℃.
After described acidizing fired end, can be by water and described acidifying grog in (1.5-2.5): 1 ratio is mixed.
The utility model also provides a kind of production unit that purifies the production method of concentrated solution for implementing described Lithium Sulphate.According to the production unit that purifies the production method of concentrated solution for implementing described Lithium Sulphate of the utility model embodiment, comprise roasting kiln transition for roasting that described triphane concentrate is made the transition, for the device that described β-triphane roasting material is carried out to fine grinding, for described β-triphane fine powder and described sulfuric acid are carried out to acidizing fired acidizing fired kiln, for the leaching vat that described acidifying grog is leached, for the filtration unit that described leaching slurry is filtered, for leach liquor is carried out to the filtration equipment for clarifying of purification and impurity removal filtration and for described Lithium Sulphate scavenging solution being carried out to the MVR vaporizer 10 of evaporation concentration.
The import of described fine grinding device is connected with roasting kiln outlet transition, the import of described acidizing fired kiln is connected with the outlet feed bin of described fine grinding device, the import of described leaching vat is connected with the outlet of described acidizing fired kiln, the import of described filtration unit is connected with described leaching vat outlet, the import of described filtration equipment for clarifying is connected with the outlet of described filtration unit, and the import of MVR vaporizer 10 is connected with the outlet of described filtration equipment for clarifying.
According to the utility model embodiment for implementing the production unit of production method that described Lithium Sulphate purifies concentrated solution by MVR vaporizer 10 is set, thereby can utilize 10 pairs of described Lithium Sulphate scavenging solutions of MVR vaporizer to carry out evaporation concentration, thereby not only can reduce the production cost that described Lithium Sulphate purifies concentrated solution, and can reduce the floor space of described production unit.
The production unit that existing Lithium Sulphate purifies concentrated solution utilizes triple-effect evaporator to carry out evaporation concentration to Lithium Sulphate scavenging solution.Wherein, to Lithium Sulphate scavenging solution evaporation 1t water, need to consume 0.3t-0.4t steam, approximately need 60-80 unit (price of steam is 200 yuan/t).And utilize the current consumption of the concentrated 1t water of MVR evaporator evaporation, be 40kwh-60kwh, about 20 yuan-30 yuan, the equipment reducing more than 50% takes up an area.
As shown in Figure 2, in examples more of the present utility model, MVR vaporizer 10 can comprise vaporizer 100 and compressor 200.The opening for feed of vaporizer 100 can be connected with the outlet of described filtration unit.The import of compressor 200 can be connected with the vapour outlet of vaporizer 100 and the outlet of compressor 200 can be connected with the steam-in of vaporizer 100.
In an example of the present utility model, as shown in Figure 2, MVR vaporizer 10 can also comprise preheater 300, and the import of preheater 300 can be connected with the outlet of described filtration unit and the outlet of preheater 300 can be connected with the opening for feed of vaporizer 100.Can utilize thus 300 pairs of described Lithium Sulphate scavenging solutions of preheater to carry out preheating, thereby can improve the vaporization efficiency of vaporizer 100.
Particularly, described grading material device can be high-pressure roller mill.
According to the filtration unit of the production unit of the embodiment of the present invention, can also comprise leaching flow container.Particularly, the leach liquor after described filtration unit filters can be stored in described leaching flow container, and the import of described filtration equipment for clarifying can be connected with the outlet of described leaching flow container.
Embodiment 1
Under the condition of 1050 ℃, to the roasting that makes the transition of triphane concentrate, and obtain β-triphane roasting material.Then utilize high-pressure roller mill to carry out fine grinding to β-triphane roasting material, and obtain β-triphane fine powder.
The sulfuric acid that is then 93% by described β-triphane fine powder and concentration mixes and under the condition that is incorporated in 280 ℃, carries out acidizing firedly, obtains acidifying grog.In described acidifying grog, add water, through sizing mixing, leach to filter, obtain leach liquor.The mass ratio of wherein said acidifying grog and water is 1.5:1.
Described leach liquor is filtered, and obtain Lithium Sulphate scavenging solution.Finally utilize MVR vaporizer to carry out evaporation concentration to described Lithium Sulphate scavenging solution, and obtain described Lithium Sulphate purification concentrated solution.
Embodiment 2
Under the condition of 1100 ℃, to the roasting that makes the transition of triphane concentrate, and obtain β-triphane roasting material.Then utilize high-pressure roller mill to carry out fine grinding to β-triphane roasting material, and obtain β-triphane fine powder.
The sulfuric acid that is then 98% by described β-triphane fine powder and concentration mixes and under the condition that is incorporated in 260 ℃, carries out acidizing firedly, obtains acidifying grog.In described acidifying grog, add water, through sizing mixing, leach to filter, obtain leach liquor.The mass ratio of wherein said acidifying grog and water is 2:1.
Described leach liquor is filtered, and obtain Lithium Sulphate scavenging solution.Finally utilize MVR vaporizer to carry out evaporation concentration to described Lithium Sulphate scavenging solution, and obtain described Lithium Sulphate purification concentrated solution.
Embodiment 3
Under the condition of 1080 ℃, to the roasting that makes the transition of triphane concentrate, and obtain β-triphane roasting material.Then utilize high-pressure roller mill to carry out fine grinding to β-triphane roasting material, and obtain β-triphane fine powder.
The sulfuric acid that is then 98% by described β-triphane fine powder and concentration mixes and under the condition that is incorporated in 250 ℃, carries out acidizing firedly, obtains acidifying grog.In described acidifying grog, add water, through sizing mixing, leach to filter, obtain leach liquor.The mass ratio of wherein said acidifying grog and water is 2.5:1.
Described leach liquor is filtered, and obtain Lithium Sulphate scavenging solution.Finally utilize MVR vaporizer to carry out evaporation concentration to described Lithium Sulphate scavenging solution, and obtain described Lithium Sulphate purification concentrated solution.
Comparative example 1
Under the condition of 1050 ℃, to the roasting that makes the transition of triphane concentrate, and obtain β-triphane roasting material.Then utilize abrasive dust equipment to carry out abrasive dust to β-triphane roasting material, obtain β-triphane fine powder.The sulfuric acid that is then 93% by described β-triphane fine powder and concentration mixes and under the condition that is incorporated in 280 ℃, carries out acidizing firedly, obtains acidifying grog.In described acidifying grog, add water, and obtain leach liquor.The mass ratio of wherein said acidifying grog and water is 2:1.Described leach liquor is filtered, and obtain Lithium Sulphate scavenging solution.
As utilize the method in the present invention, and more traditional ball mill+triple-effect evaporator method, obtains described Lithium Sulphate and purifies concentrated solution, and it is 5000-6500 unit that the above-mentioned Lithium Sulphate of preparation 100t purifies concentrated solution escapable cost.
In the description of this specification sheets, the description of reference term " embodiment ", " some embodiment ", " illustrative examples ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present utility model or example in conjunction with specific features, structure, material or the feature of this embodiment or example description.In this manual, the schematic statement of above-mentioned term is not necessarily referred to identical embodiment or example.And the specific features of description, structure, material or feature can be with suitable mode combinations in any one or more embodiment or example.
Although illustrated and described embodiment of the present utility model, those having ordinary skill in the art will appreciate that: in the situation that not departing from principle of the present utility model and aim, can carry out multiple variation, modification, replacement and modification to these embodiment, scope of the present utility model is limited by claim and equivalent thereof.

Claims (4)

1. Lithium Sulphate purifies a production unit for concentrated solution, it is characterized in that, comprising:
Roasting kiln transition for roasting that described triphane concentrate is made the transition;
For the device that described β-triphane roasting material is carried out to fine grinding, the import of described fine grinding device is connected with roasting kiln outlet transition;
For described β-triphane fine powder and described sulfuric acid are carried out to acidizing fired acidizing fired kiln, the import of described acidizing fired kiln is connected with the outlet feed bin of described fine grinding device;
For the leaching vat that described acidifying grog is leached, the import of described leaching vat is connected with the outlet of described acidizing fired kiln;
For the filtration unit that described leaching slurry is filtered, the import of described filtration unit is connected with described leaching vat outlet;
For the filtration equipment for clarifying that leach liquor is carried out to purification and impurity removal filtration, the import of described filtration equipment for clarifying is connected with the outlet of described filtration unit;
For described Lithium Sulphate scavenging solution being carried out to the MVR vaporizer of evaporation concentration, the import of described MVR vaporizer is connected with the outlet of described filtration equipment for clarifying.
2. Lithium Sulphate according to claim 1 purifies the production unit of concentrated solution, it is characterized in that, described MVR vaporizer comprises:
Vaporizer, the opening for feed of described vaporizer is connected with the outlet of described filtration equipment for clarifying;
Compressor, the import of described compressor is connected with the vapour outlet of described vaporizer and outlet is connected with the steam-in of described vaporizer.
3. Lithium Sulphate according to claim 2 purifies the production unit of concentrated solution, it is characterized in that, described MVR vaporizer also comprises preheater, and the import of described preheater is connected with the outlet of described scavenging solution storage tank and outlet is connected with the opening for feed of described vaporizer.
4. according to the Lithium Sulphate described in any one in claim 1-3, purify the production unit of concentrated solution, it is characterized in that, described fine grinding device is high-pressure roller mill.
CN201420125756.4U 2014-03-19 2014-03-19 Production equipment of lithium sulfate purifying concentrate Expired - Lifetime CN203890073U (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103896311A (en) * 2014-03-19 2014-07-02 中国恩菲工程技术有限公司 Production equipment of lithium sulfate purified concentrated solution
CN106348318A (en) * 2016-10-28 2017-01-25 荆门市格林美新材料有限公司 Automatic system for preparing lithium hydroxide
CN106430256A (en) * 2016-10-28 2017-02-22 荆门市格林美新材料有限公司 Preparation system for lithium hydroxide
CN106495188A (en) * 2016-10-28 2017-03-15 荆门市格林美新材料有限公司 Lithium hydrate preparation system
CN112624159A (en) * 2020-12-22 2021-04-09 成都大川锂电科技有限公司 Method for extracting spodumene by adopting sulfuric acid nano atomization process

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103896311A (en) * 2014-03-19 2014-07-02 中国恩菲工程技术有限公司 Production equipment of lithium sulfate purified concentrated solution
CN106348318A (en) * 2016-10-28 2017-01-25 荆门市格林美新材料有限公司 Automatic system for preparing lithium hydroxide
CN106430256A (en) * 2016-10-28 2017-02-22 荆门市格林美新材料有限公司 Preparation system for lithium hydroxide
CN106495188A (en) * 2016-10-28 2017-03-15 荆门市格林美新材料有限公司 Lithium hydrate preparation system
CN106348318B (en) * 2016-10-28 2017-08-08 荆门市格林美新材料有限公司 Lithia prepares automated system
CN112624159A (en) * 2020-12-22 2021-04-09 成都大川锂电科技有限公司 Method for extracting spodumene by adopting sulfuric acid nano atomization process
CN112624159B (en) * 2020-12-22 2023-05-02 成都大川锂电科技有限公司 Method for extracting spodumene by adopting sulfuric acid nano atomization process

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