CN116062704A - Quenching classification system and method for producing insoluble sulfur by low-temperature melting method - Google Patents
Quenching classification system and method for producing insoluble sulfur by low-temperature melting method Download PDFInfo
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- 238000010791 quenching Methods 0.000 title claims abstract description 197
- 230000000171 quenching effect Effects 0.000 title claims abstract description 162
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 title claims abstract description 122
- 229910052717 sulfur Inorganic materials 0.000 title claims abstract description 88
- 239000011593 sulfur Substances 0.000 title claims abstract description 88
- 238000000034 method Methods 0.000 title claims abstract description 37
- 238000002844 melting Methods 0.000 title claims abstract description 23
- 230000008018 melting Effects 0.000 title claims abstract description 23
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 16
- 239000002245 particle Substances 0.000 claims abstract description 21
- 239000007788 liquid Substances 0.000 claims description 45
- 238000010008 shearing Methods 0.000 claims description 24
- 238000007599 discharging Methods 0.000 claims description 22
- 238000003756 stirring Methods 0.000 claims description 7
- 238000000926 separation method Methods 0.000 claims description 5
- 238000010298 pulverizing process Methods 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 3
- 238000010309 melting process Methods 0.000 claims description 2
- 239000012530 fluid Substances 0.000 claims 1
- 238000004064 recycling Methods 0.000 claims 1
- 238000009826 distribution Methods 0.000 abstract description 5
- 238000010924 continuous production Methods 0.000 abstract description 2
- 238000005550 wet granulation Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 description 11
- 238000006116 polymerization reaction Methods 0.000 description 6
- 239000005864 Sulphur Substances 0.000 description 4
- 229920001971 elastomer Polymers 0.000 description 4
- 238000001125 extrusion Methods 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 238000005469 granulation Methods 0.000 description 3
- 230000003179 granulation Effects 0.000 description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- 241001233242 Lontra Species 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- 238000000498 ball milling Methods 0.000 description 2
- 239000011425 bamboo Substances 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000005491 wire drawing Methods 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000005194 fractionation Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
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Classifications
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/02—Preparation of sulfur; Purification
- C01B17/12—Insoluble sulfur (mu-sulfur)
Abstract
The utility model discloses a quenching classification system and a quenching classification method for producing insoluble sulfur by a low-temperature melting method. According to the utility model, through the manners of sulfur distributor, wet granulation, wet crushing and cyclone classification, the continuous operation processes of quenching, crushing and classification of polymerized sulfur are realized, the quenching effect of insoluble sulfur can be effectively improved, the total crushing of sulfur is realized, the width of sulfur particle size distribution is reduced, the uniformity of sulfur powder particle size is improved, the purity of the product is ensured, and the thermal stability and yield of the product are improved. The method provided by the utility model is suitable for large-scale continuous production, and the production process has the characteristics of safety, reliability, simple equipment and operation, low operation cost, obvious energy-saving effect and the like.
Description
Technical Field
The utility model belongs to the technical field of petrochemical industry, and relates to a quenching classification system and a quenching classification method for producing insoluble sulfur by a low-temperature melting method.
Background
With the rapid increase of petroleum consumption, global petroleum resources are increasingly scarce, and the weight and the inferior quality of refinery raw materials are increasingly serious; meanwhile, environmental protection regulations of various countries are becoming stricter, and the control of total sulfur content of petroleum products and natural gas is becoming stricter. Therefore, the capacity of sulfur recovery units in large refineries and natural gas purification plants is rapidly increased. The common sulfur has a tendency to be saturated in domestic and foreign markets, so the price is low. How to provide sulfur products with high added value, which are short of the market, is an important concern for related enterprises.
The insoluble sulfur is a high-efficiency rubber vulcanizing agent, has the advantages of good distribution stability in rubber materials, uniform product vulcanization crosslinking points and the like, can overcome the frosting of the surface of the rubber materials, and improves the adhesive property of rubber and steel wires or chemical fiber cord threads. From the international market perspective, only a few countries and regions (e.g., united states, russia, japan, germany, france, india, and eastern europe, etc.) are currently producing insoluble sulfur. The production method of insoluble sulfur mainly includes low-temperature melting method and gasification method.
Patent CN102070127a discloses a method for producing insoluble sulfur, which comprises the following steps: (1) melt polymerization; (2) atomization cold extraction; (3) curing; (4) centrifugal separation; (5) continuously drying; (6) crushing, screening and oil filling to obtain a finished product; the method is a continuous production method, but the sulfur polymerization operation temperature and the sulfur polymerization operation pressure are both high, the operation temperature is 580-690 ℃, the operation pressure is 0.8-1.2 MPa, and the requirements on reaction equipment are high.
Patent CN 206915765U discloses a production system of insoluble sulfur, which comprises a polymerization reaction unit and an extrusion granulating unit, wherein a discharge port of the polymerization reaction unit is communicated with a feed port of the extrusion granulating unit, and the polymerization reaction unit is used for polymerizing raw material sulfur to obtain insoluble sulfur melt; the extrusion granulating unit comprises an extruder, a die surface granulator, a quenching container, a dehydrator and air conveying equipment. The utility model has reasonable structure, can shorten the process flow, reduce the material loss, save the cost, improve the production efficiency, reduce the labor intensity, improve the working environment and realize the safe production of insoluble sulfur. However, when the temperature of sulfur is 250-270 ℃, the viscosity of sulfur is high, the wire drawing of materials is serious, and the problem of difficult extrusion and grain cutting exists. Therefore, a production system using insoluble sulfur disclosed in this patent is not suitable for producing insoluble sulfur by a low-temperature melting method.
At present, insoluble sulfur produced by the existing low-temperature melting method has poor thermal stability, low yield, intermittent operation of a system, high viscosity of polymerized sulfur and difficult granulation.
Disclosure of Invention
Aiming at the problems in the prior art, the utility model provides a quenching classification system and a quenching classification method for producing insoluble sulfur by a low-temperature melting method.
According to a first aspect of the utility model, there is provided a quench fractionation system for producing insoluble sulfur by a low temperature melting process.
The quenching classification system comprises a quenching tower, a circulating pump and a cyclone separator, wherein the quenching tower sequentially comprises a quenching tower feeding section, a quenching tower shearing section and a quenching tower crushing section from top to bottom; wherein, the liquid crystal display device comprises a liquid crystal display device,
the quenching tower feeding section is positioned at the upper part of the quenching tower and is a gas phase space in the quenching tower; a quenching liquid inlet, a sulfur inlet and a sulfur distributor are arranged in the quenching tower feeding section, and the sulfur inlet is communicated with the sulfur distributor liquid inlet through a pipeline;
the quenching tower shearing section is positioned in the middle of the quenching tower, and a shearing sheet is arranged in the quenching tower shearing section;
the crushing section of the quenching tower is positioned at the lower part of the quenching tower, a stirring rod and a crushing ball are arranged in the crushing section, and a discharging screen plate is arranged at the bottom of the crushing section;
the feed inlet and the discharge outlet of the circulating pump are respectively connected with the discharge outlet of the bottom plate of the quenching tower and the feed inlet of the cyclone separator through pipelines;
the cyclone separator is used for classifying sulfur powder particles; the first outlet (i.e. coarse material port) of the cyclone separator is communicated with the top of the quenching tower, and the second outlet (i.e. fine material port) of the cyclone separator is communicated with the discharging pipe.
Further, the quenching tower is used for quenching, shearing and crushing the high Wen Liuhuang, and is of a cylindrical structure.
Further, the quenching liquid inlet and the sulfur inlet can be positioned at the top of the quenching tower or on the side wall of the upper end of the quenching tower, and the sulfur distributor is arranged in the quenching tower.
Further, sulfur powder with the diameter of more than 0.15mm can be separated and recycled and then is crushed again in the quenching tower.
Further, 2-8 shearing sheets can be arranged in the shearing section of the quenching tower.
Further, a motor is arranged outside the top of the quenching tower, a rotating shaft is arranged in the center of the quenching tower shaft, and the rotating shaft penetrates through the quenching tower feeding section, the quenching tower shearing section and the quenching tower crushing section; the shearing sheets and the stirring rods are uniformly distributed on the rotating shaft and fixedly connected with the rotating shaft; the crushing balls are in bulk in the crushing section; the discharging screen plate is positioned at the center of the crushing section shaft.
Further, the discharging screen plate comprises a screen plate top cover and a screen plate cylinder. Wherein the screen cylinder is provided with a plurality of meshes, the width or diameter of the meshes is 0.5-0.8 times of the diameter of the crushing ball, and the screen top cover is fixedly connected with the rotating shaft; the screen plate and the rotating shaft are coaxially centered. A gap is formed between the lower end of the screen plate cylinder and the bottom plate of the quenching tower, and the gap is 0.5-0.8 times of the diameter of the crushing ball.
Further, the discharging screen plate is used for blocking the crushing balls from entering the discharging screen plate. The bottom plate center of quench tower sets up the discharge gate, and discharge gate diameter is less than otter board section of thick bamboo diameter.
Further, the discharge port is communicated with a feed port of a circulating pump through a pipeline, and the discharge port of the circulating pump is communicated with a feed port of a cyclone separator; the cyclone separator is positioned at the top of the quenching tower, and a coarse material port of the cyclone separator is directly communicated with the top of the quenching tower; the fine material port of the cyclone separator is communicated with the discharge pipe.
Further, the sulfur distributor may be a granulator, a bar extruder, or an atomizer. The sulfur distributor was used to disperse the height Wen Liuhuang in the quench tower.
According to a second aspect of the utility model, the utility model provides a quenching and classifying method for producing insoluble sulfur by a low-temperature melting method, wherein the quenching and classifying system for the insoluble sulfur is adopted.
Specifically, the quenching and classifying method for producing insoluble sulfur by the low-temperature melting method comprises the following steps:
(1) The quenching liquid continuously enters the quenching tower through the quenching liquid inlet, the liquid level of the quenching liquid in the quenching tower is controlled, and meanwhile, the quenching liquid is continuously discharged out of the quenching tower through the bottom plate discharge hole;
(2) After the liquid level of the quenching liquid in the quenching tower is controlled to be stable, introducing the high Wen Liuhuang with the temperature of 250-300 ℃ into the quenching tower through a sulfur distributor; the dispersed sulfur enters quenching liquid for quenching, and the quenched sulfur is sheared in a shearing section of a quenching tower and enters a crushing section of the quenching tower for crushing; in the crushing process, sulfur powder smaller than the aperture of the discharging screen plate enters the grading screen plate through the mesh holes and enters the circulating pump together with the quenching liquid through the discharging hole;
(3) The quenching liquid containing sulfur powder is lifted by a circulating pump and then enters a cyclone separator, and solid and liquid are subjected to cyclone separation in the cyclone separator; fine sulfur powder with the particle size smaller than the target particle size (such as 0.15 mm) is discharged along with the quenching liquid through a second outlet (namely a fine material port) by adjusting process conditions (such as controlling parameters such as feeding pressure and the like), so that sulfur powder meeting the requirements is obtained; sulfur powder particles larger than the target particle size (e.g., 0.15 mm) are returned from the first outlet (i.e., coarse feed port) to the quench tower for re-circulation pulverization.
Compared with the prior art, the utility model has the following beneficial effects:
1. in the quenching grading system for producing insoluble sulfur by a low-temperature melting method, the continuous operation process of quenching and crushing polymeric sulfur is realized by means of distribution of a sulfur distributor, wet granulation and wet crushing, the quenching effect of high Wen Liuhuang is improved, and the yield and the thermal stability of products are ensured.
2. In the quenching classification system for producing insoluble sulfur by a low-temperature melting method, the high Wen Liuhuang completes sulfur distribution, shearing, crushing and discharging in a quenching tower, and the sulfur is subjected to cyclone separation in a cyclone separator, so that the high Wen Liuhuang is directly converted into sulfur powder meeting the product target particle size requirement (the sulfur powder particle size requirement is generally smaller than 0.15 mm), the solid sulfur particles are prevented from being conveyed, the problem of blockage of a conventional quenching system is avoided, and the technical problems of high viscosity, difficult granulation, wiredrawing during granulation and the like of polymerized sulfur are solved.
3. In the quenching classification system for producing insoluble sulfur by a low-temperature melting method, high Wen Liuhuang ball milling and crushing and cyclone classification in a quenching tower can realize that all sulfur feed is crushed into sulfur powder which meets the product requirement of less than 0.15mm, improve the uniformity of the particle size distribution of crushed sulfur, avoid classification and filtration of discharged materials after sulfur ball milling, and simplify the process flow.
4. Compared with the intermittent quenching process for producing the insoluble sulfur by the conventional low-temperature melting method, the quenching classification system for producing the insoluble sulfur by the low-temperature melting method has the advantages of safety, reliability, simple equipment and operation, low operation cost and the like.
Drawings
FIG. 1 is a schematic diagram of a quenching classification system for producing insoluble sulfur by a low-temperature melting method.
FIG. 2 is a schematic diagram of a classifying screen plate in a quenching classifying system for producing insoluble sulfur by a low-temperature melting method.
In the figure, each numerical label corresponds to: 1-sulphur feed line, 2-sulphur import, 3-quenching liquid feed line, 4-quenching liquid import, 5-motor, 6-sulphur distributor, 7-quench tower, 8-axis of rotation, 9-shear slice, 10-stirring rod, 11-crushing ball, 12-classification otter board, 13-circulating pump, 14-discharge gate, 15-cyclone separator, 16-coarse fodder mouth, 17-feed mouth, 18-fine fodder mouth, 19-discharging pipe, 20-mesh, 21-otter board top cap, 22-otter board section of thick bamboo, A-quench tower feed section, B-quench tower shear section, C-quench tower crushing section.
Detailed Description
The present utility model will be further illustrated by the following examples, but is not limited to the examples.
Example 1
The embodiment describes the low-temperature melting insoluble sulfur quenching classification system of the present utility model in detail.
As shown in FIG. 1, the low-temperature melting insoluble sulfur quenching classification system of the utility model comprises a quenching tower 7, a circulating pump 13 and a cyclone separator 15. The quenching tower 7 is of a barrel structure, and comprises a quenching tower feeding section A, a quenching tower shearing section B and a quenching tower crushing section C from top to bottom.
Wherein, quench tower feed section A is located quench tower upper portion. The quenching tower feeding section is internally provided with a quenching liquid inlet 4, a sulfur inlet 2 and a sulfur distributor 6, wherein the sulfur inlet 2 is communicated with the liquid inlet of the sulfur distributor 6 through a pipeline. The quenching tower shearing section B is positioned in the middle of the quenching tower, and a shearing sheet 9 is arranged in the quenching tower shearing section B. The crushing section C of the quenching tower is positioned at the lower part of the quenching tower 7, a stirring rod 10 and crushing balls 11 are arranged in the crushing section C, and the crushing balls 11 are scattered in the crushing section C. The lower part or the bottom of the crushing section C is provided with a discharging screen 12.
The feed inlet and the discharge outlet of the circulating pump 13 are respectively connected with the discharge outlet 14 of the bottom plate of the quenching tower 7 and the feed inlet 17 of the cyclone separator 15 through pipelines. A cyclone separator 15 is located at the top of the quenching tower 7 for classifying the sulfur powder particles. A first outlet (i.e. coarse inlet) 16 of the cyclone 15 communicates with the top of the quenching tower 7 and a second outlet (i.e. fine inlet) 18 of the cyclone 15 communicates with a discharge pipe 19.
In the utility model, the quenching liquid inlet 4 and the sulfur inlet 2 are preferably positioned at the top or the upper side wall of the quenching tower, and the sulfur distributor 6 is positioned in the quenching tower.
The motor 5 is arranged outside the top of the quenching tower 7, the rotating shaft 8 is arranged in the center of the quenching tower shaft, and the rotating shaft 8 penetrates through the quenching tower feeding section A, the quenching tower shearing section B and the quenching tower crushing section C. The shearing sheets 9 and the stirring rods 10 are uniformly distributed on the rotating shaft 8 and fixedly connected with the rotating shaft 8. The crushing balls 11 are in bulk in the crushing section C; the discharging screen 12 is positioned at the center of the C axis of the crushing section.
As shown in fig. 2, the discharging screen 12 includes a screen top cover 21 and a screen cylinder 22. The screen cylinder 22 is provided with a plurality of meshes 20, and the width or diameter of the meshes 20 is 0.5-0.8 times of the diameter of the crushing ball 11. The top cover of the screen 12 is fixedly connected with the rotating shaft 8 and is coaxial with the rotating shaft 8. A gap is formed between the lower end of the screen cylinder 22 and the bottom plate of the quenching tower 7, and the gap is 0.5-0.8 times of the diameter of the crushing ball 11. The discharging screen 12 is used for blocking the crushing balls 11 from entering the discharging screen 12. The center of the bottom plate of the quenching tower 7 is provided with a discharge hole 14, and the diameter of the discharge hole 14 is smaller than that of the screen cylinder 22.
The sulphur distributor 6 may be a granulator, a rod extruder or an atomizer. The sulfur distributor was used to disperse the height Wen Liuhuang in the quench tower.
Example 2
The embodiment describes the low-temperature melting insoluble sulfur quenching classification system of the present utility model in detail.
Referring to FIGS. 1-2, the quenching and classifying method for producing insoluble sulfur by the low-temperature melting method comprises the following steps:
(1) The quenching liquid continuously enters the quenching tower 7 through the quenching liquid inlet 4, the liquid level of the quenching liquid in the quenching tower 7 is controlled, and meanwhile, the quenching liquid is continuously discharged out of the quenching tower 7 through the bottom plate discharge hole 14;
(2) After the liquid level of the quenching liquid in the quenching tower 7 is controlled to be stable, the high Wen Liuhuang with the temperature of 250-300 ℃ enters a quenching tower feeding section A through a sulfur distributor 6; the dispersed sulfur enters quenching liquid for quenching, and the quenched sulfur is sheared in a shearing section B of the quenching tower and enters a crushing section C of the quenching tower for crushing; in the crushing process, sulfur powder with the aperture smaller than 0.15mm of the discharging screen plate enters the classifying screen plate 12 through the mesh holes, and enters the circulating pump 13 through the discharging port 14 together with the quenching liquid;
(3) The quenching liquid containing sulfur powder is lifted by a circulating pump 13 and enters a cyclone separator 15, and is subjected to cyclone separation in the cyclone separator; fine sulfur powder with the particle size smaller than the target particle size (such as 0.15 mm) is discharged along with the quenching liquid through a second outlet (namely a fine material opening) 18 by adjusting process conditions (such as controlling parameters of feeding pressure and the like), so that sulfur powder meeting the requirements is obtained; sulfur powder particles larger than the target particle size (e.g., 0.15 mm) are returned from the first outlet 16 (i.e., coarse feed port) to the quench tower for re-circulation pulverization.
Claims (13)
1. A quenching classification system for producing insoluble sulfur by a low-temperature melting method is characterized by comprising a quenching tower, a circulating pump and a cyclone separator;
the quenching tower sequentially comprises a quenching tower feeding section, a quenching tower shearing section and a quenching tower crushing section from top to bottom; wherein the quenching tower feeding section is positioned at the upper part of the quenching tower and is a gas phase space in the quenching tower; a quenching liquid inlet, a sulfur inlet and a sulfur distributor are arranged in the quenching tower feeding section, and the sulfur inlet is communicated with the sulfur distributor liquid inlet through a pipeline; the quenching tower shearing section is positioned in the middle of the quenching tower, and a shearing sheet is arranged in the quenching tower shearing section; the crushing section of the quenching tower is positioned at the lower part of the quenching tower, a stirring rod and a crushing ball are arranged in the crushing section, and a discharging screen plate is arranged at the bottom of the crushing section;
the feed inlet and the discharge outlet of the circulating pump are respectively connected with the discharge outlet of the bottom plate of the quenching tower and the feed inlet of the cyclone separator through pipelines;
the cyclone separator is used for classifying sulfur powder particles; the first outlet of the cyclone separator is communicated with the top of the quenching tower, and the second outlet of the cyclone separator is communicated with the discharging pipe.
2. The quench classification system of claim 1, wherein the quench fluid inlet, sulfur inlet, are located in a side wall of a top or upper end of the quench tower, and the sulfur distributor is disposed within the quench tower.
3. The quench classification system of claim 1, wherein 2-8 shear slices are disposed in the quench tower shear section.
4. The quench classification system of claim 1, wherein the quench tower top is externally provided with a motor, and the quench tower shaft center is provided with a rotating shaft extending through the quench tower feed section, quench tower shear section, and quench tower comminution section.
5. The quenching and classifying system according to claim 4, wherein the shearing sheets and the stirring rods are uniformly distributed on the rotating shaft and fixedly connected with the rotating shaft; the crushing balls are in bulk in the crushing section; the discharging screen plate is positioned at the center of the crushing section shaft.
6. The quench classification system of claim 6, wherein the take-off screen comprises a screen top cover, a screen drum; the screen cylinder is provided with a plurality of meshes, and the screen top cover is fixedly connected with the rotating shaft.
7. The quench classification system of claim 6, wherein the mesh width or diameter is 0.5 to 0.8 times the diameter of the pulverizing balls.
8. The quench classification system of claim 7, wherein the take-off screen is concentric with the axis of rotation.
9. The quench classification system of claim 1, wherein a gap is provided between the lower end of the screen cylinder and the quench tower floor, the gap being 0.5 to 0.8 times the diameter of the pulverizing balls.
10. The quench classification system of claim 1 wherein the quench tower bottom plate discharge port has a diameter less than the diameter of the screen drum.
11. The quench classification system of claim 1, wherein the cyclone separator is located at a top of a quench tower.
12. A quenching and classifying method for producing insoluble sulfur by a low-temperature melting method, wherein the quenching and classifying system for insoluble sulfur according to any one of claims 1 to 11 is adopted.
13. The quench classification method of claim 12, wherein the low temperature melting process for producing insoluble sulfur quench classification method comprises the following:
(1) The quenching liquid continuously enters the quenching tower through the quenching liquid inlet, the liquid level of the quenching liquid in the quenching tower is controlled, and meanwhile, the quenching liquid is continuously discharged out of the quenching tower through the bottom plate discharge hole;
(2) After the liquid level of the quenching liquid in the quenching tower is controlled to be stable, introducing the high Wen Liuhuang with the temperature of 250-300 ℃ into the quenching tower through a sulfur distributor; the dispersed sulfur enters quenching liquid for quenching, and the quenched sulfur is sheared in a shearing section of a quenching tower and enters a crushing section of the quenching tower for crushing; in the crushing process, sulfur powder smaller than the aperture of the discharging screen plate enters the grading screen plate through the mesh holes and enters the circulating pump together with the quenching liquid through the discharging hole;
(3) The quenching liquid containing sulfur powder is lifted by a circulating pump and then enters a cyclone separator, and solid and liquid are subjected to cyclone separation in the cyclone separator; through adjusting the process conditions, the fine sulfur powder smaller than the target particle size is discharged along with the quenching liquid from the second outlet, so that sulfur powder meeting the requirements is obtained; sulfur powder particles with the particle size larger than the target particle size are returned to the quenching tower from the first outlet for recycling and crushing.
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Effective date of registration: 20240129 Address after: 100728 No. 22 North Main Street, Chaoyang District, Beijing, Chaoyangmen Applicant after: CHINA PETROLEUM & CHEMICAL Corp. Country or region after: China Applicant after: Sinopec (Dalian) Petrochemical Research Institute Co.,Ltd. Address before: 100728 No. 22 North Main Street, Chaoyang District, Beijing, Chaoyangmen Applicant before: CHINA PETROLEUM & CHEMICAL Corp. Country or region before: China Applicant before: DALIAN RESEARCH INSTITUTE OF PETROLEUM AND PETROCHEMICALS, SINOPEC Corp. |