CN102115082B - Device for producing silicon dioxide by adopting vapor phase method - Google Patents
Device for producing silicon dioxide by adopting vapor phase method Download PDFInfo
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- CN102115082B CN102115082B CN 201110057189 CN201110057189A CN102115082B CN 102115082 B CN102115082 B CN 102115082B CN 201110057189 CN201110057189 CN 201110057189 CN 201110057189 A CN201110057189 A CN 201110057189A CN 102115082 B CN102115082 B CN 102115082B
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Abstract
The invention provides a device for producing silicon dioxide by adopting a vapor phase method. The device comprises a collector and a combustion furnace which are connected and communicated with each other, wherein the collector has a horizontal calandria structure; the combustion furnace has a horizontal enclosed structure; and the outlet of the combustion furnace is transversely connected and communicated with the inlet of the collector. The combustion furnace in the invention adopts the horizontal enclosed structure and a water cooling technology, so that the entire production device runs stably without being influenced by environmental factors, prevents wall built-up of materials, has cooling uniformity, high cooling speed and long service life, greatly enhances the quality stability and generality of a product and increases the yield. A pipeline hydrogenization mechanism is arranged, the ratio of hydrogen to oxygen is controlled, hydrogen undergoes oxygen-poor combustion in the collector, and hydrogen which does not participate in combusting reacts with free chlorine on the surface of silicon dioxide in a material to produce hydrogen chloride and water, so that the free chlorine on the surface of silicon dioxide can be removed, and the quality of a silicon dioxide product is greatly enhanced.
Description
Technical field
The present invention relates to a kind of production equipment of chemical, particularly a kind of device for producing silicon dioxide by adopting vapor.
Background technology
Produce at present fumed silica and generally all be vertical, open port firing stove and the air-cooled technology of adopting.The shortcoming of vertical shaft furnace is: floor space is large, is not easy to operation.Systemic resistance is large, easily produces the phenomenons such as anti-fire, wall built-up.The shortcoming of open port firing stove is: affected by environment large, site environment is abominable, and raw material can be brought other impurity in the body of heater into when hydrolysis, thereby produces anticaustic, has affected to a great extent the quality of product.System for fumed silica is an exothermic process, if the heat that produces in process of production can't be taken away rapidly, just easily burns out equipment.And the shortcoming of air-cooled technology exactly: inhomogeneous cooling is even, speed of cooling is slow, and equipment is easily burnt out.
Summary of the invention
Purpose of the present invention, the problems referred to above that exist in order to solve prior art exactly provide a kind of device for producing silicon dioxide by adopting vapor.
To achieve these goals, the present invention has adopted following technical scheme: a kind of device for producing silicon dioxide by adopting vapor comprises the collector and the roasting kiln that connect; Described collector is Horizontal pipe array formula structure, and described roasting kiln is Horizontal closed formula structure, and the outlet of roasting kiln and the import of collector laterally connect.
Described roasting kiln comprises body of heater, bell and the burner that order is connected; Body of heater is jacket type structure, and front end is provided with water-in, and the rear end is provided with water outlet.
Described bell is that cone shape is jacket structured, its small-caliber end and burner are tightly connected, and the heavy caliber end is connected with furnace sealing, and the chuck outer wall is connected with the inlet of cold air pipe, the chuck inwall is vesicular structure, and chuck forms the buffering inner chamber that freezing air enters roasting kiln.
Described burner front portion is provided with jacket structured, and the chuck outer wall is connected with cold nitrogen inlet pipe, and the chuck inwall is vesicular structure, and chuck forms the buffering inner chamber that cold nitrogen enters burner.
Also comprise pipeline hydrogenation mechanism, this pipeline hydrogenation mechanism laterally is connected to the pipe bent position of collector, comprises hydrogen gas combustor, hydrogen gas pipeline and air inlet pipeline; Hydrogen gas combustor laterally is installed in the pipe bent position of collector, and the flame direction in hydrogen gas combustor when burning is consistent with the Flow of Goods and Materials direction; Be provided with the hydrogen inlet pipe in the side at hydrogen gas combustor rear portion, be provided with the air intlet pipe in the hydrogen gas combustor rear end; The hydrogen gas pipeline links to each other with the hydrogen inlet pipe, and the air inlet pipeline links to each other with the air intlet pipe.
Described hydrogen gas pipeline comprises hydrogen ball valve, hydrogen reducing valve, hydrogen pressure table, safety cut-off valve and the hydrogen orifice-plate flowmeter that order links to each other by pipeline.
Described air inlet pipeline comprises Air ball valve, air reducing valve, air manometer, electric operator and the air orifice-plate flowmeter that order links to each other by pipeline.
Collector among the present invention is Horizontal pipe array formula structure, and roasting kiln also is Horizontal closed formula structure and adopts Water Cooling Technology, finishes the above-mentioned problem that has overcome the prior art existence.Whole production equipment smooth operation is not subjected to such environmental effects, can not produce the material wall built-up.And cooling is even, speed of cooling is fast, and service life of equipment is long.Not only improve greatly stability, the ubiquity of quality product, improved simultaneously production capacity.Owing to being provided with pipeline hydrogenation mechanism, pipe bent position hydrogenation at cooling tube and collector burns, by control hydrogen, oxygen ratio, make hydrogen carry out oxygen debt burning, make not the free chlorine of silica sphere in the hydrogen of participating in burning and the material react production hydrogenchloride and water, can remove the free chlorine of silica sphere, greatly improve the quality of silica product.
Description of drawings
Fig. 1 is the structural representation of device for producing silicon dioxide by adopting vapor of the present invention;
Fig. 2 is the structural representation of the pipeline hydrogenation mechanism among the present invention;
Fig. 3 is the structural representation of the roasting kiln among the present invention.
Embodiment
The present invention is described in detail below in conjunction with the drawings and specific embodiments.
Referring to Fig. 1, device for producing silicon dioxide by adopting vapor of the present invention comprises the collector 1, roasting kiln 2 and the pipeline hydrogenation mechanism 3 that connect.Wherein collector 1 be Horizontal pipe array formula structure, roasting kiln 2 is Horizontal closed formula structure, the outlet of roasting kiln and the import of collector laterally connect.
Referring to Fig. 3, the roasting kiln 2 among the present invention comprises body of heater 21, bell 22 and the burner 23 that order is connected.
Body of heater 21 is jacket type structure, and front end is provided with water-in 211, and the rear end is provided with water outlet 212 and porthole 213 and pressure tap 214.
Bell 22 is that cone shape is jacket structured, its small-caliber end and burner 23 are tightly connected, and heavy caliber end and body of heater 21 are tightly connected, and the chuck outer wall is connected with inlet of cold air pipe 221, the chuck inwall is vesicular structure, and chuck forms the buffering inner chamber that freezing air enters roasting kiln.Bell 22 is provided with flame monitoring mouth 222.
Burner 23 among the present invention and the tolerance clearance≤0.5mm between the bell 22.To guarantee that flame 24 burns in bell 22, be provided with jacket structuredly in burner 23 front portions, the chuck outer wall is connected with cold nitrogen inlet pipe 231, and the chuck inwall is vesicular structure, and chuck forms the buffering inner chamber that cold nitrogen enters burner.Be provided with silane import 232 and hydrogen inlet 233 at burner 23 rear portions.
Referring to Fig. 2, the hydrogenation device of pipeline 3 among the present invention comprises hydrogen gas combustor 31, hydrogen gas pipeline 32 and air inlet pipeline 33.Hydrogen gas combustor 31 is installed in the pipe bent position of the collector 1 in the production equipment, and the direction of the flame 35 during hydrogen gas combustor 31 burning is consistent with the Flow of Goods and Materials direction; Side at hydrogen gas combustor 31 rear portions is provided with hydrogen inlet pipe 311, is provided with air intlet pipe 312 in the hydrogen gas combustor rear end; Hydrogen gas pipeline 32 links to each other with hydrogen inlet pipe 311, and air inlet pipeline 33 links to each other with air intlet pipe 312.
The principle of work of hydrogenation device of pipeline is, by control hydrogen, oxygen ratio, make hydrogen in production equipment cooling tube or the pipe bent position of collector 4 carry out oxygen debt burning, allow not the free chlorine of the hydrogen of participating in burning and silica sphere react and produce hydrogenchloride and water, to realize removing the free chlorine of silica sphere
The principle of work of device for producing silicon dioxide by adopting vapor of the present invention is, silane, hydrogen carry out combustion hydrolytic at the burner mouth after fully mixing in burner, because of flame an airtight space internal combustion, therefore be covered with a flame monitoring mouth at roasting kiln, be used for the monitoring flame combustion state.Roasting kiln is made the chuck form, comes cooled furnace wall by tempered water.Simultaneously in order to reach better cooling performance, pass into cold nitrogen and cold air at burner muzzle and burning bell respectively, form the twice air curtain, the heat that produces in the time of not only can cooling combustion can prevent from that material from sticking to simultaneously to produce wall built-up on the furnace walls.
Claims (3)
1. a device for producing silicon dioxide by adopting vapor comprises the collector and the roasting kiln that connect; Described collector is Horizontal pipe array formula structure, and described roasting kiln is Horizontal closed formula structure, and the outlet of roasting kiln and the import of collector laterally connect; Described roasting kiln comprises body of heater, bell and the burner that order is connected; Body of heater is jacket type structure, and front end is provided with water-in, and the rear end is provided with water outlet;
It is characterized in that: described bell is that cone shape is jacket structured, its small-caliber end and burner are tightly connected, and the heavy caliber end is connected with furnace sealing, and the chuck outer wall is connected with the inlet of cold air pipe, the chuck inwall is vesicular structure, and chuck forms the buffering inner chamber that freezing air enters roasting kiln;
Described burner front portion is provided with jacket structured, and the chuck outer wall is connected with cold nitrogen inlet pipe, and the chuck inwall is vesicular structure, and chuck forms the buffering inner chamber that cold nitrogen enters burner;
Also comprise pipeline hydrogenation mechanism, this pipeline hydrogenation mechanism laterally is connected to the pipe bent position of collector, comprises hydrogen gas combustor, hydrogen gas pipeline and air inlet pipeline; Hydrogen gas combustor laterally is installed in the pipe bent position of collector, and the flame direction in hydrogen gas combustor when burning is consistent with the Flow of Goods and Materials direction; Be provided with the hydrogen inlet pipe in the side at hydrogen gas combustor rear portion, be provided with the air intlet pipe in the hydrogen gas combustor rear end; The hydrogen gas pipeline links to each other with the hydrogen inlet pipe, and the air inlet pipeline links to each other with the air intlet pipe.
2. device for producing silicon dioxide by adopting vapor as claimed in claim 1 is characterized in that: described hydrogen gas pipeline comprises hydrogen ball valve, hydrogen reducing valve, hydrogen pressure table, safety cut-off valve and the hydrogen orifice-plate flowmeter that order links to each other by pipeline.
3. device for producing silicon dioxide by adopting vapor as claimed in claim 1 is characterized in that: described air inlet pipeline comprises Air ball valve, air reducing valve, air manometer, electric operator and the air orifice-plate flowmeter that order links to each other by pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110057189 CN102115082B (en) | 2011-03-10 | 2011-03-10 | Device for producing silicon dioxide by adopting vapor phase method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110057189 CN102115082B (en) | 2011-03-10 | 2011-03-10 | Device for producing silicon dioxide by adopting vapor phase method |
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| Publication Number | Publication Date |
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| CN102115082A CN102115082A (en) | 2011-07-06 |
| CN102115082B true CN102115082B (en) | 2013-05-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201110057189 Expired - Fee Related CN102115082B (en) | 2011-03-10 | 2011-03-10 | Device for producing silicon dioxide by adopting vapor phase method |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106348306B (en) * | 2016-10-21 | 2021-12-10 | 浙江华飞电子基材有限公司 | Preparation method of spherical nano silicon dioxide |
| CN107963634A (en) * | 2017-12-12 | 2018-04-27 | 宜昌汇富硅材料有限公司 | Collector for fume colloidal silica production |
| CN110030492A (en) * | 2019-04-30 | 2019-07-19 | 无锡特莱姆气体设备有限公司 | Submerged combustion gasifier and its monitoring system |
| CN111484022B (en) * | 2019-12-23 | 2022-12-06 | 浙江精功新材料技术有限公司 | White carbon black combustion furnace structure |
| CN112569735A (en) * | 2020-11-27 | 2021-03-30 | 株洲宏大高分子材料有限公司 | Method and device for removing sulfuric acid smoke in tail gas pipeline of flue gas acid making system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1572725A (en) * | 2003-06-10 | 2005-02-02 | 德古萨股份公司 | Fumed silica produced by flame hydrolysis, process for its production and its use |
| US20050129603A1 (en) * | 2002-03-18 | 2005-06-16 | Wacker-Chemie Gmbh | High-purity silica powder, and process and apparatus for producing it |
| CN101723384A (en) * | 2009-12-25 | 2010-06-09 | 上海竟茨环保科技有限公司 | Synthesis method and device for gas phase white carbon black |
| CN202030532U (en) * | 2011-03-10 | 2011-11-09 | 上海竟茨环保科技有限公司 | Gas phase method silica production device |
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2011
- 2011-03-10 CN CN 201110057189 patent/CN102115082B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050129603A1 (en) * | 2002-03-18 | 2005-06-16 | Wacker-Chemie Gmbh | High-purity silica powder, and process and apparatus for producing it |
| CN1572725A (en) * | 2003-06-10 | 2005-02-02 | 德古萨股份公司 | Fumed silica produced by flame hydrolysis, process for its production and its use |
| CN101723384A (en) * | 2009-12-25 | 2010-06-09 | 上海竟茨环保科技有限公司 | Synthesis method and device for gas phase white carbon black |
| CN202030532U (en) * | 2011-03-10 | 2011-11-09 | 上海竟茨环保科技有限公司 | Gas phase method silica production device |
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| CN102115082A (en) | 2011-07-06 |
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