CN112456506B - High-efficiency energy-saving environment-friendly white carbon black production device and process - Google Patents
High-efficiency energy-saving environment-friendly white carbon black production device and process Download PDFInfo
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- CN112456506B CN112456506B CN202011514025.5A CN202011514025A CN112456506B CN 112456506 B CN112456506 B CN 112456506B CN 202011514025 A CN202011514025 A CN 202011514025A CN 112456506 B CN112456506 B CN 112456506B
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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
- C01B33/00—Silicon; Compounds thereof
- C01B33/113—Silicon oxides; Hydrates thereof
- C01B33/12—Silica; Hydrates thereof, e.g. lepidoic silicic acid
- C01B33/18—Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof
- C01B33/187—Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof by acidic treatment of silicates
- C01B33/193—Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof by acidic treatment of silicates of aqueous solutions of silicates
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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
- C01B33/00—Silicon; Compounds thereof
- C01B33/113—Silicon oxides; Hydrates thereof
- C01B33/12—Silica; Hydrates thereof, e.g. lepidoic silicic acid
- C01B33/18—Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
The invention discloses a high-efficiency energy-saving environment-friendly white carbon black production device and a high-efficiency energy-saving environment-friendly white carbon black production process, wherein the high-efficiency energy-saving environment-friendly white carbon black production device comprises a sodium carbonate storage tank, a second mixing mill and a high-frequency smelting furnace, wherein the sodium carbonate storage tank, the second mixing mill and the high-frequency smelting furnace are sequentially connected, the high-frequency smelting furnace is connected to an air purifier, and the air purifier is connected with a carbonic acid storage tank; the high-frequency smelting furnace discharge gate is connected with the water quenching and melts the jar, the water quenching melts jar and connects white carbon black sedimentation tank, white carbon black sedimentation tank discharge gate is connected with white carbon black sedimentation tank, and vacuum dehydrator, microwave dryer are connected in proper order to white carbon black sedimentation tank, and the wind dust mill is connected to the microwave dryer, and the plasma pyrolysis oven is connected to the wind dust mill, and the grader is connected to the plasma pyrolysis oven. The invention adopts high-frequency smelting, vacuum dehydration and microwave drying, and utilizes the high temperature of plasma technology to instantly crack silicon dioxide into white carbon black products below 20um, thereby realizing zero emission production of pollutants. The whole production process is carried out by full-automatic intelligent production, and is safe, controllable and stable in quality.
Description
Technical Field
The invention belongs to the technical field of hazardous waste treatment and environmental protection, and particularly relates to a high-efficiency energy-saving environment-friendly white carbon black production device and an extraction method thereof.
Background
White carbon black has wide application range, and different products have different uses. The reinforcing performance of the reinforcing agent used as a good reinforcing agent of the synthetic rubber is inferior to that of carbon black, and even superior to that of carbon black after ultra-fine and proper surface treatment. Especially, the rubber products are more suitable for manufacturing white, colorful and light-colored rubber products. It can be used as thickening agent or thickening agent, blending agent of synthetic oil and insulating paint, polishing agent of paint, thixotropic agent of electronic element encapsulation material, precipitant of fluorescent powder when fluorescent screen is coated, filler of colour-printed adhesive plate and demoulding agent for casting. The moisture-proof and insulating properties of the resin can be improved by adding the resin. The plastic product is filled with the modified polyurethane, so that the skid resistance and the oil resistance can be improved. The plastic can be filled in silicone resin to prepare plastic with the temperature resistance of more than 200 ℃. White carbon black is used as filler and surface ingredient of paper in paper industry, and is used for rubber products such as inner and outer tires of automobiles, dump trucks, tractors, forklifts, bicycles and the like, industrial belts, rubber tubes, gaskets, rubber plates, threshing rolls for grain processing, rubber shoes and the like. The addition of a certain amount of white carbon black in a common tire can improve the service life of the tire. The demand of domestic and foreign markets on bicycle tires is increasingly diversified, and new fancy varieties such as tire bead colorization, flash ring and the like are produced by using white carbon black instead of carbon black. In the production of rubber shoes, people are required to have not only fastness, but also beautiful color tone, comfort and portability for rubber shoes, rain boots, sport shoes, travel shoes, body-building shoes, ballet shoes and the like. White carbon black has good reinforcing property, wear resistance, skid resistance and vamp adhesion, and is a good light-color reinforcing material, so that the white carbon black plays an important role in the development of rubber shoes for providing the quality and style of the shoes. The white carbon black can be used as a filling material in plastics such as polyethylene, polypropylene, polybutene, epoxy resin and the like, and can improve the elastic strength, the wear resistance and the heat stability of the hardness of the plastics.
The domestic production of white carbon black has a gas phase method, silicon tetrachloride is used as a raw material, the production cost is high, at present, a precipitation method is used for producing white carbon black, sodium silicate is used as a raw material, sodium silicate adopts a dry production process, sodium carbonate and quartz sand are used as fuels to carry out fusion reaction in a horseshoe flame furnace at 1200-1300 ℃, the fusion is scattered by a fan to form granular solid glass frit, the granular solid glass frit is put into a roller, steam is introduced for heating and dissolving, and qualified water glass products are produced after sedimentation and concentration, and then hydrolysis, dehydration, drying and crushing are carried out by inorganic acid (such as sulfuric acid, hydrochloric acid and the like) to obtain the white carbon black products. The process has high energy consumption, is difficult to control and has certain influence on the environment.
Disclosure of Invention
The first aim of the invention is to provide a high-efficiency energy-saving environment-friendly white carbon black production device.
The second aim of the invention is to provide a white carbon black production process with high efficiency, energy conservation and environmental protection
The first object of the invention is realized in that the device comprises a sodium carbonate storage tank, a second mixing mill and a high-frequency smelting furnace, wherein the sodium carbonate storage tank, the second mixing mill and the high-frequency smelting furnace are sequentially connected, the high-frequency smelting furnace is connected to an air purifier, and the air purifier is connected with a carbonic acid storage tank; the high-frequency smelting furnace discharge gate is connected with the water quenching and melts the jar, the water quenching melts jar and connects white carbon black sedimentation tank, white carbon black sedimentation tank discharge gate is connected with white carbon black sedimentation tank, and vacuum dehydrator, microwave dryer are connected in proper order to white carbon black sedimentation tank, and the wind dust mill is connected to the microwave dryer, and the plasma pyrolysis oven is connected to the wind dust mill, and the grader is connected to the plasma pyrolysis oven.
The second object of the present invention is achieved by: the method comprises the following steps:
(1) The silicon ore is treated, the granularity is up to 0.074mm and accounts for 85%, sodium carbonate (the mass ratio of the silica powder to the sodium carbonate is 1:0.5-0.7) is added according to the mass ratio of the silica powder, the mixture is melted after being mixed, carbon dioxide released by the sodium carbonate in the melting process is absorbed by a gas-liquid mixer 10, carbonic acid is formed in an air purifier 12, and the gas is discharged after purification and absorption, and the carbonic acid reaches a saturated state for standby;
(2) Dissolving molten sodium silicate at constant temperature into liquid sodium silicate, regulating the concentration of the sodium silicate to precipitate, carrying out hydrolysis reaction with carbonic acid until the reaction is complete, carrying out dehydration treatment, concentrating the dehydrated liquid sodium carbonate, crystallizing after concentrating, and recycling the crystallized sodium carbonate;
(3) The vapor generated in the concentration process is recycled after passing through a condenser, the dehydrated white carbon black is dried and crushed to more than 200 meshes, the white carbon black is instantaneously cracked to less than 20 mu m by utilizing a plasma cracking furnace 22, and then the white carbon black is classified to obtain white carbon black products with different grades.
The invention has the beneficial effects that: the invention adopts high-frequency smelting, vacuum dehydration and microwave drying, and utilizes the high temperature of plasma technology to instantly crack silicon dioxide into white carbon black products below 20um, thereby realizing zero emission production of pollutants. The whole production process of the invention adopts full-automatic intelligent production, and is safe, controllable and stable in quality.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
in the figure: 1-breaker, 2-winnowing machine, 3-blower, 4-dust collector, 5-mixer, 6-Raymond mill, 7-sodium carbonate storage tank, 8-mixer, 9-high frequency smelting furnace, 10-gas-liquid mixer, 11-circulating pump, 12-air purifier, 13-carbonic acid storage tank, 14-water quenching melting tank, 15-white carbon black sedimentation tank, 16-vacuum dehydrator, 17-microwave concentration tower, 18-crystallization tank, 19-condenser, 20-microwave dryer, 21-dust mill, 22-plasma cracking furnace, 23-classifier, 24-blower, 25-dust collector and 26-white carbon black product collecting device.
Detailed Description
The invention is further described below with reference to the accompanying drawings, without in any way limiting the invention, and any alterations or modifications based on the teachings of the invention are within the scope of the invention.
As shown in FIG. 1, the high-efficiency energy-saving environment-friendly white carbon black production device comprises a sodium carbonate storage tank 7, a second mixing mill 8 and a high-frequency smelting furnace 9, wherein the sodium carbonate storage tank 7, the second mixing mill 8 and the high-frequency smelting furnace 9 are sequentially connected, the high-frequency smelting furnace 9 is connected to an air purifier 12, and the air purifier 12 is connected with a carbonic acid storage tank 13; the high-frequency smelting furnace 9 discharge gate is connected with the water quenching and melts jar 14, the water quenching and melts jar 14 and is connected with white carbon black sedimentation tank 15, white carbon black sedimentation tank 15 is connected to carbonic acid storage tank 13 discharge gate, and vacuum dehydrator 16, microwave dryer 20 are connected in proper order to white carbon black sedimentation tank 15, and the microwave dryer 20 is connected with dust mill 21, and dust mill 21 is connected with plasma pyrolysis furnace 22, and plasma pyrolysis furnace 22 is connected with grader 23.
The feeding end of the second mixing mill 8 is connected with the Raymond mill 6, the Raymond mill 6 is connected with the winnowing machine 2, and the winnowing machine 2 is connected with the crusher 1.
The winnowing machine 2 is connected with a first dust collector 4, and the first dust collector 4 is connected with a first mixing mill 5.
The high-frequency smelting furnace 9 is connected with a gas-liquid mixer 10, and the gas-liquid mixer 10 is connected with an air purifier 12.
The vacuum dehydrator 16 is connected to a microwave concentration tower 17, the microwave concentration tower 17 is connected to a crystallization pond 18, and the crystallization pond 18 is connected to the sodium carbonate storage tank 7.
The fine dust outlet of the classifier 23 is connected with a second dust collector 25, and the discharge port of the second dust collector 25 is connected with the last stage of the classifier 23.
A high-efficiency energy-saving environment-friendly white carbon black production process comprises the following steps:
(1) The silicon ore is treated, the granularity is up to 0.074mm and accounts for 85%, and sodium carbonate and silica powder are added according to the mass ratio of the silica powder: the sodium carbonate is 1:0.5-0.7, the mixture is melted after being mixed, carbon dioxide released by the sodium carbonate in the melting process is absorbed by a gas-liquid mixer 10, carbonic acid is formed in an air purifier 12, and the gas is discharged after purification and absorption, so that the carbonic acid reaches a saturated state for standby;
(2) Dissolving molten sodium silicate at constant temperature into liquid sodium silicate, precipitating the sodium silicate with a concentration (concentration value is 5% -15%), carrying out hydrolysis reaction with carbonic acid until the reaction is complete, carrying out dehydration treatment, concentrating the dehydrated liquid sodium carbonate, crystallizing the concentrated liquid sodium carbonate, and recycling the crystallized sodium carbonate;
(3) The vapor generated in the concentration process is recycled after passing through a condenser, the dehydrated white carbon black is dried and crushed to more than 200 meshes, the white carbon black is instantaneously cracked to less than 20 mu m by utilizing a plasma cracking furnace 22, and then the white carbon black is classified to obtain white carbon black products with different grades.
The silicon ore treatment process in the step 1 specifically comprises the following steps: crushing the silicon ore, carrying out air separation after crushing, collecting dust after air separation, adding a certain amount of plant leaf stems for mixing, and stacking for a certain time to form organic soil.
The cracking temperature of the step 3 is 8000-120000 k.
The working principle of the invention is described in the following embodiments:
crushing the silicon ore by a crusher 1, carrying out winnowing by a winnowing machine 2 on the raw ore due to impurities such as mud powder and oxides in the mining process, collecting dust after winnowing by a first dust collector 4, conveying the dust after winnowing to the collection to a first mixer 5, adding a certain amount of plant leaf stems for mixing, and piling for a certain time to form organic soil;
the crushed silicon ore after dust removal from the winnowing machine 2 is sent to a Raymond mill 6 for crushing, the crushed silicon ore with the granularity of 0.074mm accounting for 85 percent is sent to a No. two mixing mill 8, and sodium carbonate and silica powder are added from a sodium carbonate storage tank 7 according to the mass ratio of the silica powder: sodium carbonate is 1:0.65, the mixed sodium carbonate is sent to a high-frequency smelting furnace 9 for smelting, a large amount of carbon dioxide released by the sodium carbonate in the smelting process of the high-frequency smelting furnace 9 is absorbed by a gas-liquid mixer 10, carbonic acid is formed in an air purifier 12, the gas is discharged after purification and absorption, and the carbonic acid reaches a saturated state and is sent to a carbonic acid storage tank 13 for standby;
the sodium silicate melted in the high-frequency smelting furnace 9 directly enters a water quenching melting tank 14 to be dissolved into liquid water glass at constant temperature, the water glass concentration is adjusted and then is sent to a white carbon black sedimentation tank 15, carbonic acid is extracted from a carbonic acid storage tank 13 to carry out hydrolysis reaction until the reaction is complete PH7-7.5 and is sent to a vacuum dehydrator 16 to carry out dehydration, the dehydrated liquid sodium carbonate is sent to a microwave concentration tower 17 to be concentrated and then sent to a crystallization tank 18 to be crystallized, the crystallized sodium carbonate is returned to a sodium carbonate storage tank 7 to be recycled, vapor generated by the concentration of the microwave concentration tower 17 is sent to a condenser 19, the condenser 19 is returned to the water quenching melting tank 14 to be used, the white carbon black silicon dioxide dehydrated by the vacuum dehydrator 16 is sent to a microwave dryer 20 to be dried, and then is crushed to more than 200 meshes by a dust mill 21, the high temperature of about 10000k sent to a plasma cracking furnace is heated and crushed to be less than 20um instantly, and then sent to a classifier 23 to be classified, fine dust of the classifier 23 is collected by a second dust collector 25 and returned to the last stage of the classifier 23, and white carbon black products with different grades are obtained in a white carbon black product collecting device 26.
Claims (4)
1. The efficient energy-saving environment-friendly white carbon black production device is characterized by comprising a sodium carbonate storage tank (7), a second mixing mill (8) and a high-frequency smelting furnace (9), wherein the sodium carbonate storage tank (7), the second mixing mill (8) and the high-frequency smelting furnace (9) are sequentially connected, the high-frequency smelting furnace (9) is connected to an air purifier (12), and the air purifier (12) is connected with a carbonic acid storage tank (13); the utility model provides a high frequency smelting furnace (9) discharge gate is connected the water quenching and is melted jar (14), water quenching melts jar (14) and is connected white carbon black sedimentation tank (15), white carbon black sedimentation tank (15) are connected to carbonic acid storage tank (13) discharge gate, vacuum dewatering machine (16), microwave dryer (20) are connected in proper order in white carbon black sedimentation tank (15), dust mill (21) are connected in microwave dryer (20), plasma pyrolysis furnace (22) are connected in dust mill (21), classifier (23) are connected in plasma pyrolysis furnace (22), the feed end of No. two mixer (8) connect raymond mill (6), raymond mill (6) connect winnowing machine (2), breaker (1) are connected in winnowing machine (2), high frequency smelting furnace (9) connect gas-liquid mixer (10), air purifier (12) are connected in gas-liquid mixer (10).
2. The efficient energy-saving environment-friendly white carbon black production device according to claim 1, wherein the winnowing machine (2) is connected with a first dust collector (4), and the first dust collector (4) is connected with a first mixing mill (5).
3. The efficient energy-saving environment-friendly white carbon black production device according to claim 1, wherein the vacuum dehydrator (16) is connected to a microwave concentration tower (17), the microwave concentration tower (17) is connected to a crystallization pond (18), and the crystallization pond (18) is connected with a sodium carbonate storage tank (7).
4. The high-efficiency, energy-saving and environment-friendly white carbon black production device according to claim 1, wherein the fine dust outlet of the classifier (23) is connected with a No. two dust collector (25), and the discharge port of the No. two dust collector (25) is connected with the last stage of the classifier (23).
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| CN112456506B true CN112456506B (en) | 2023-05-05 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5391404A (en) * | 1993-03-15 | 1995-02-21 | The United States Of America As Represented By The National Aeronautics And Space Administration | Plasma sprayed mullite coatings on silicon-base ceramics |
| CN1192191A (en) * | 1995-06-07 | 1998-09-02 | 杰罗米·P·唐尼 | Pyrometallurgical process for treating metal-containing materials |
| CN1373086A (en) * | 2001-12-21 | 2002-10-09 | 叶天润 | Process for preparing both sodium carbonate and silica white |
| CN111926179A (en) * | 2020-09-09 | 2020-11-13 | 云南等离子科技有限公司 | Energy-saving and environment-friendly microwave vanadium extraction device and extraction method |
| CN112028081A (en) * | 2020-09-21 | 2020-12-04 | 刘冠诚 | Device and method for comprehensively recycling and treating phosphogypsum by using plasma |
| CN213895216U (en) * | 2020-12-21 | 2021-08-06 | 云南等离子科技有限公司 | Efficient energy-saving environment-friendly white carbon black production device |
-
2020
- 2020-12-21 CN CN202011514025.5A patent/CN112456506B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5391404A (en) * | 1993-03-15 | 1995-02-21 | The United States Of America As Represented By The National Aeronautics And Space Administration | Plasma sprayed mullite coatings on silicon-base ceramics |
| CN1192191A (en) * | 1995-06-07 | 1998-09-02 | 杰罗米·P·唐尼 | Pyrometallurgical process for treating metal-containing materials |
| CN1373086A (en) * | 2001-12-21 | 2002-10-09 | 叶天润 | Process for preparing both sodium carbonate and silica white |
| CN111926179A (en) * | 2020-09-09 | 2020-11-13 | 云南等离子科技有限公司 | Energy-saving and environment-friendly microwave vanadium extraction device and extraction method |
| CN112028081A (en) * | 2020-09-21 | 2020-12-04 | 刘冠诚 | Device and method for comprehensively recycling and treating phosphogypsum by using plasma |
| CN213895216U (en) * | 2020-12-21 | 2021-08-06 | 云南等离子科技有限公司 | Efficient energy-saving environment-friendly white carbon black production device |
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