CN211688260U - Full-automatic industrial sulfur purification system - Google Patents
Full-automatic industrial sulfur purification system Download PDFInfo
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- CN211688260U CN211688260U CN202020221731.XU CN202020221731U CN211688260U CN 211688260 U CN211688260 U CN 211688260U CN 202020221731 U CN202020221731 U CN 202020221731U CN 211688260 U CN211688260 U CN 211688260U
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Abstract
The utility model discloses a full-automatic industrial sulfur purification system, which comprises a crude sulfur slag processing system, a mixing and filtering system, a storage tank and a refined sulfur recovery system which are connected in sequence; and drying and crushing the sulfur slag by a crude sulfur slag processing system, then feeding the sulfur slag into a mixed filtering system to be mixed with a carbon disulfide solvent, filtering, then feeding the sulfur slag into a storage tank, finally pumping the sulfur slag into a refined sulfur recovery system, separating sulfur from light components by the refined sulfur recovery system, and recovering the carbon disulfide solvent. The utility model solves the problems that the sulfur slag contains more water to affect the purification effect and the sulfur is not easy to be completely dissolved because the sulfur slag is not completely crushed when being mixed with the solvent through the coarse sulfur slag processing system; the separation of the sulfur and the light components is realized by utilizing the refined sulfur recovery system, the carbon disulfide solvent is recovered, and the problems of difficult recovery of the light components, environmental pollution caused by the emission of the light components, low purity of the sulfur product and the like are solved.
Description
Technical Field
The utility model relates to a sulphur purification technical field specifically relates to a full-automatic industry sulphur purification system.
Background
Sulfur is also called sulfur, colloidal sulfur, sulfur block. The appearance is light yellow brittle crystal or powder, has special odor, and can volatilize. The molecular weight was 32.06, the vapor pressure was 0.13kPa, the flash point was 207 ℃, the melting point was 119 ℃, the boiling point was 444.6 ℃, and the relative density (water ═ 1) was 2.0. Sulfur is insoluble in water, slightly soluble in ethanol and ether, and easily soluble in carbon disulfide. The aqueous suspension of sulfur is slightly acidic, insoluble in water, and reacts with alkali to produce polysulfide. Sulfur is a chemical element, is an important chemical raw material, is a non-renewable resource substance, and is widely applied to industrial departments such as chemical industry, medicine, food industry, rubber, pigment, paper making and the like. With the great trend of resource shortage and the increasing domestic demand for pure sulfur, the traditional sulfur purification method can not meet the demand due to serious pollution and low purity.
When crude sulfur produced in the fields of chemical industry, metallurgy and the like is purified in China, the sulfur melting kettle technology is mainly used in the industry, and the problems that the energy consumption of heating solution is high, sulfur is not gasified, part of heavy salt is difficult to separate, the content of organic matters in products is high, the color is poor, the purity of sulfur products is low and the like exist, so that the sulfur products are difficult to sell to downstream enterprises which have high requirements on the purity of sulfur, and the problems that the application range is narrowed and the selling price is low are caused.
At present, domestic specific processes are divided into a flotation method, a thermal filtration method, a distillation method and the like. The flotation method is difficult to control, the quality of the recovered sulfur is not high, and the method can only be used for separating solid impurities in the sulfur. The hot filtration method has problems of low recovery rate, high equipment requirement, incapability of separating impurities soluble in molten sulfur, and the like. The distillation method has high energy consumption and large investment in the treatment process, and has no economic advantages; on the other hand, due to the recovery of impurities contained in the sulfurThe material will decompose during gasification to produce H2S and NH3And the like, and has great influence on the environment. It is known that the physical method is difficult to be performed due to these defects. The chemical method for recovering sulfur depends on the kind of the solvent used, and the chemical method can be divided into an organic solvent method and an inorganic solvent method. Mainly comprises xylene, kerosene, dichloroethylene, trichloroethylene, tetrachloroethylene, carbon disulfide, ammonium sulfide, sodium sulfide and the like. Wherein, dichloroethylene and trichloroethylene have poor stability and small sulfur dissolution; the kerosene is inflammable and explosive, the requirement on the safety of equipment is high, and the kerosene remains in the desulfurized slag and needs to be combusted; the ammonium sulfide desulfurization process is complex, the ammonium sulfide smell is unpleasant, the operation environment is poor, and meanwhile, the ammonium sulfide can dissolve sulfides and can enter a sulfur product together during thermal decomposition, so that the purity of the sulfur cannot meet the requirement of a qualified product with the purity of 99.5 percent. Therefore, it is very necessary to develop a new type of fully automatic industrial sulfur purification system.
SUMMERY OF THE UTILITY MODEL
To the above problem, the utility model provides a full-automatic industry sulphur purification system through separating sulphur and light component, retrieves the carbon disulfide solvent, has solved light component and has retrieved difficulty, light component emission polluted environment, sulphur product purity low grade problem.
The utility model adopts the following technical proposal:
a full-automatic industrial sulfur purification system comprises a crude sulfur slag processing system, a mixing and filtering system, a storage tank and a refined sulfur recovery system which are connected in sequence, wherein sulfur slag dried and crushed by the crude sulfur slag processing system enters the mixing and filtering system to be mixed with a carbon disulfide solvent, then enters the storage tank and finally is pumped into the refined sulfur recovery system;
the coarse sulfur slag processing system comprises a drying cylinder, a pulverizer and a vibrating screen which are sequentially connected, wherein the drying cylinder is used for drying sulfur slag, the pulverizer is used for pulverizing the sulfur slag, and the vibrating screen is used for screening large-particle sulfur slag which is not pulverized;
the mixing and filtering system comprises a reaction kettle stirrer and a scraper filter which are connected in sequence; the refined sulfur recovery system comprises an evaporative crystallizer, and separates sulfur from light components and recovers the carbon disulfide solvent.
Preferably, the vibrating screen is provided with a dust remover to prevent dust generated by the vibrating screen from entering the outside.
Preferably, a large-particle discharge port is formed in the vibrating screen, and large-particle sulfur slag discharged from the large-particle discharge port enters the pulverizer again to be pulverized.
Preferably, a second heat pump dryer and a third light component pump which are connected in sequence are arranged below the scraper filter, the second heat pump dryer is used for drying the waste sulfur slag, and the third light component pump is used for recovering the carbon disulfide solvent.
Preferably, the evaporative crystallizer is provided with a condenser and a second light component pump which are connected in sequence; a product pump, a first heat pump dryer and a first light component pump which are connected in sequence are arranged below the dryer.
Preferably, the evaporative crystallizer is a DTB type evaporative crystallizer.
Preferably, the first heat pump dryer and the second heat pump dryer are both internally heated heat pump dryers.
Preferably, a delivery pump is arranged between the storage tank and the refined sulfur recovery system, and the carbon disulfide solution dissolved with sulfur is pumped into the refined sulfur recovery system.
The utility model has the advantages that:
the utility model firstly solves the problems that the sulfur slag contains more water to influence the purification effect and the sulfur is not easy to be completely dissolved because the sulfur slag is not completely crushed when being mixed with the solvent through a coarse sulfur slag processing system;
secondly, a refined sulfur recovery system is utilized to realize the separation of sulfur and light components, the carbon disulfide solvent is recovered, and the problems of difficult recovery of the light components, environmental pollution caused by the emission of the light components, low purity of the sulfur product and the like are solved;
and a light component pump and an internal heating type heat pump drying device are arranged, so that the solvent is recycled, the subsequent refining energy consumption is saved, and the consumption and the operation cost are low.
Drawings
In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the drawings of the embodiments will be briefly described below, and it is obvious that the drawings in the following description only relate to some embodiments of the present invention, and are not intended to limit the present invention.
Fig. 1 is a schematic structural view of the present invention;
shown in the figure:
the system comprises a drying cylinder 1, a pulverizer 2, a vibrating screen 3, a dust remover 4, a reaction kettle stirrer 5, a scraper filter 6, a second heat pump dryer 7, a storage tank 8, an evaporation crystallizer 9 and a condenser 10;
11-a first heat pump dryer, 12-a third light component pump, 13-a delivery pump, 14-a product pump, 15-a first light component pump, 16-a second light component pump;
31-a dust cover, 32-a large particle discharge port, 33-a vibrating screen discharge port, 91-an evaporation gas outlet;
Detailed Description
In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined below to clearly and completely describe the technical solution of the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. All other embodiments, which can be obtained by a person skilled in the art without any inventive work based on the described embodiments of the present invention, belong to the protection scope of the present invention.
Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of the word "comprising" or "comprises", and the like, in this disclosure is intended to mean that the elements or items listed before that word, include the elements or items listed after that word, and their equivalents, without excluding other elements or items. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
The present invention will be further explained with reference to the drawings and examples.
As shown in figure 1, the full-automatic industrial sulfur purification system comprises a crude sulfur slag processing system and a mixed filtration system which are connected through a belt or a screw conveyor, a storage tank 8 and a refined sulfur recovery system which are connected through pipelines, wherein the mixed filtration system is connected with the storage tank 8 through a pipeline.
The coarse sulfur slag processing system comprises a drying cylinder 1, a pulverizer 2 and a vibrating screen 3 which are sequentially connected through a belt conveyor or a screw conveyor, wherein the drying cylinder 1 is used for drying sulfur slag, the pulverizer 2 is used for pulverizing sulfur slag, and the vibrating screen 3 is used for screening large-particle sulfur slag which is not pulverized;
the dust cover 31 is arranged above the vibrating screen 3, the dust remover 4 is arranged on the dust cover 31, and the dust cover 31 and the dust remover 4 are used for reducing dust generated by the vibrating screen 3 from entering the outside. Still be equipped with large granule discharge gate 32 on the shale shaker 3, the large granule sulphur sediment that comes out from large granule discharge gate 32 gets into rubbing crusher 2 once more and smashes, makes the smashing of sulphur sediment more abundant, and the sulphur sediment after smashing completely at last gets into in the mixed filtration system through the shale shaker discharge gate 33 that sets up on shale shaker 3.
The mixed filtration system comprises a reaction kettle stirrer 5 and a scraper filter 6 which are sequentially connected through a pipeline, a sulfur slag inlet and a carbon disulfide solvent inlet are formed in the reaction kettle stirrer 5, sulfur slag crushed by the crude sulfur slag processing system is stirred and mixed with the carbon disulfide solvent in the reaction kettle stirrer 5, and finally the mixture enters a storage tank 8 through the scraper filter 6; a second heat pump dryer 7 and a third light component pump 12 which are connected in sequence are arranged below the scraper filter 6, the second heat pump dryer 7 is used for drying the waste sulfur slag filtered by the scraper filter 6, and the third light component pump 12 is used for recovering a carbon disulfide solvent.
The storage tank 8 temporarily stores the filtered carbon disulfide solution dissolved with sulfur, so that the solution is conveyed to a refined sulfur recovery system by a conveying pump 13 in a constant flow manner conveniently to achieve the purpose of fully purifying to obtain refined sulfur. The refined sulfur recovery system comprises an evaporative crystallizer 9, and separates sulfur from light components and recovers carbon disulfide solvent.
The evaporative crystallizer 9 is a DTB type evaporative crystallizer, and a condenser 10 and a second light component pump 16 which are sequentially connected are arranged on an evaporation gas outlet 91 on the DTB type evaporative crystallizer; a product pump 14, a first heat pump dryer 11 and a first light component pump 15 which are connected in sequence are arranged below the first heat pump dryer. The evaporative crystallizer 9 utilizes the difference of the boiling points of the carbon disulfide solvent and the sulfur to realize the separation of the sulfur and the light components, the separated sulfur is dried by the first heat pump dryer 11, the carbon disulfide solvent is recovered by the first light component pump 15, and the problems of difficult recovery of the light components, environmental pollution caused by the emission of the light components, low purity of the sulfur product and the like are solved;
the first light component pump 15 is connected with the first heat pump dryer 11, the second heat pump dryer 7 is connected with the third light component pump 12, and the condenser 10 is connected with the second light component pump 16, so that the recycling of the carbon disulfide solvent is realized, the subsequent refining energy consumption is saved, and the consumption and the operation cost are low.
The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above description, and although the present invention has been disclosed with the preferred embodiment, it is not limited to the present invention, and any skilled person in the art can make some modifications or equivalent embodiments without departing from the scope of the present invention, but all the technical matters of the present invention are within the scope of the present invention.
Claims (8)
1. A full-automatic industrial sulfur purification system is characterized by comprising a crude sulfur slag processing system, a mixing and filtering system, a storage tank (8) and a refined sulfur recovery system which are sequentially connected;
the coarse sulfur slag processing system comprises a drying cylinder (1), a pulverizer (2) and a vibrating screen (3) which are connected in sequence, and the mixing and filtering system comprises a reaction kettle stirrer (5) and a scraper filter (6) which are connected in sequence; the refined sulfur recovery system comprises an evaporative crystallizer (9), sulfur slag is dried and crushed by the coarse sulfur slag processing system, enters the mixing and filtering system, is mixed with the carbon disulfide solvent and then is filtered, then enters the storage tank (8), and finally is pumped into the refined sulfur recovery system, sulfur and light components are separated by the refined sulfur recovery system, and the carbon disulfide solvent is recovered.
2. The full-automatic industrial sulfur purification system according to claim 1, wherein the vibrating screen (3) is provided with a dust remover (4).
3. The full-automatic industrial sulfur purification system according to claim 2, wherein the vibrating screen (3) is provided with a large particle discharge port (32).
4. The full-automatic industrial sulfur purification system according to claim 1, wherein a second heat pump dryer (7) and a third light component pump (12) which are connected in sequence are arranged below the scraper filter (6).
5. The full-automatic industrial sulfur purification system according to claim 4, wherein the evaporative crystallizer (9) is provided with a condenser (10) and a second light component pump (16) which are connected in sequence; a product pump (14), a first heat pump dryer (11) and a first light component pump (15) which are connected in sequence are arranged below the evaporation crystallizer (9).
6. The fully automatic industrial sulfur purification system according to claim 5, wherein the evaporative crystallizer (9) is a DTB type evaporative crystallizer.
7. The fully automatic industrial sulfur purification system according to claim 5, wherein the first heat pump dryer (11) and the second heat pump dryer (7) are internal heating heat pump dryers.
8. The full-automatic industrial sulfur purification system according to claim 1, wherein a delivery pump (13) is arranged between the storage tank (8) and the refined sulfur recovery system.
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| CN202020221731.XU CN211688260U (en) | 2020-02-27 | 2020-02-27 | Full-automatic industrial sulfur purification system |
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| CN202020221731.XU CN211688260U (en) | 2020-02-27 | 2020-02-27 | Full-automatic industrial sulfur purification system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112794290A (en) * | 2021-02-26 | 2021-05-14 | 中冶焦耐(大连)工程技术有限公司 | Process and system for treating low-quality sulfur and secondary salt waste liquid produced by coke oven gas desulfurization |
| CN114105104A (en) * | 2021-12-27 | 2022-03-01 | 扬州康龙环保工程有限公司 | Coking sulfur purification device |
| CN114195102A (en) * | 2021-12-28 | 2022-03-18 | 武汉国力通能源环保股份有限公司 | Method and device for refining sulfur from desulfurized sulfur paste |
-
2020
- 2020-02-27 CN CN202020221731.XU patent/CN211688260U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112794290A (en) * | 2021-02-26 | 2021-05-14 | 中冶焦耐(大连)工程技术有限公司 | Process and system for treating low-quality sulfur and secondary salt waste liquid produced by coke oven gas desulfurization |
| CN112794290B (en) * | 2021-02-26 | 2023-09-19 | 中冶焦耐(大连)工程技术有限公司 | Process and system for treating low-quality sulfur and side salt waste liquid of coke oven gas desulfurization product |
| CN114105104A (en) * | 2021-12-27 | 2022-03-01 | 扬州康龙环保工程有限公司 | Coking sulfur purification device |
| CN114195102A (en) * | 2021-12-28 | 2022-03-18 | 武汉国力通能源环保股份有限公司 | Method and device for refining sulfur from desulfurized sulfur paste |
| CN114195102B (en) * | 2021-12-28 | 2024-01-12 | 武汉国力通能源环保股份有限公司 | Method and device for refining sulfur from desulfurization sulfur paste |
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