CN102120580A - Pipeline hydrogenation device used for producing gaseous phase method silicon dioxide - Google Patents
Pipeline hydrogenation device used for producing gaseous phase method silicon dioxide Download PDFInfo
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- CN102120580A CN102120580A CN2011100567193A CN201110056719A CN102120580A CN 102120580 A CN102120580 A CN 102120580A CN 2011100567193 A CN2011100567193 A CN 2011100567193A CN 201110056719 A CN201110056719 A CN 201110056719A CN 102120580 A CN102120580 A CN 102120580A
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Abstract
The invention provides a pipeline hydrogenation device which is used for producing gaseous phase method silicon dioxide and connected with a gaseous phase method silicon dioxide production device. The pipeline hydrogenation device comprises a hydrogen combustor, a hydrogen intake pipeline and an air intake pipeline; the hydrogen combustor is arranged at a cooling pipe in the production device or a bent pipe of a collector, and the flame direction of hydrogen combusting in the hydrogen combustor is consistent with the material flowing direction; a hydrogen inlet pipe is arranged at the lateral face of the rear part of the hydrogen combustor, and an air inlet pipe is arranged at the rear end of the hydrogen combustor; the hydrogen intake pipeline is connected with the hydrogen inlet pipe; and the air intake pipeline is connected with the air inlet pipe. Through the arrangement of the pipeline hydrogenation device, the hydrogen is added at the cooling pipe or the bent pipe of the collector for combustion and undergoes incomplete combustion through controlling hydrogen and oxygen proportions so that hydrogen which does not participate in combustion reacts with free chlorine on the surface of the silicon dioxide to generate hydrogen chloride and water, and the free chlorine on the surface of the silicon dioxide can be removed, therefore, the quality of the silicon dioxide product is greatly improved.
Description
Technical field
The present invention relates to a kind of production equipment of chemical, particularly a kind of pipeline hydrogenation unit that is used to produce fumed silica.
Background technology
Fumed silica is synthetic to be that silane pyrohydrolysis in hydrogen, empty flame generates silicon-dioxide, water and hydrogenchloride.10%～15% hydrogenchloride and airborne oxygen generation secondary reaction generation free chlorine G﹠W are arranged simultaneously, and this secondary reaction does not wish to take place in the preparation aerosil.Because free chlorine attached to silica sphere, directly influences the quality of aerosil.If be used for the high-temp glue industry, the glue of being produced can turn to be yellow and is opaque etc.This vapor phase process titanium dioxide that also is domestic a few days ago enterprise produces can't be used the reason in the high-temp glue industry.In order to remove free chlorine attached to silica sphere, can in pipeline (cooling tube and collector), burn by hydrogenation, by control hydrogen, oxygen ratio, make hydrogen carry out oxygen debt burning, do not participate in free chlorine in incendiary hydrogen and the silicon-dioxide like this and react and produce hydrogenchloride and water, can realize removing the free chlorine of silica sphere.
Summary of the invention
Purpose of the present invention in order to solve the problems referred to above that prior art exists, provides a kind of pipeline hydrogenation unit that is used to produce fumed silica exactly, to realize removing the free chlorine of silica sphere.
To achieve these goals, the present invention has adopted following technical scheme: a kind of pipeline hydrogenation unit that is used to produce fumed silica links to each other with the production equipment of fumed silica; Comprise combustion of hydrogen device, hydrogen admission passage and air inlet pipeline; The combustion of hydrogen device is installed in the cooling tube in the production equipment or the pipe bent position of collector, and the flame direction the during burning of combustion of hydrogen device is consistent with the Flow of Goods and Materials direction; Side at combustion of hydrogen device rear portion is provided with the hydrogen inlet pipe, is provided with the air intlet pipe in combustion of hydrogen device rear end; The hydrogen admission passage 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 admission passage 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.
Adopt device of the present invention, pipe bent position hydrogenation at cooling tube and collector burns, by control hydrogen, oxygen ratio, make hydrogen carry out oxygen debt burning, the free chlorine of not participating in silica sphere in incendiary hydrogen and the material is reacted produce hydrogenchloride and water, can remove the free chlorine of silica sphere, improve the quality of silica product greatly.
Description of drawings
Fig. 1 is used to produce the structural representation of the pipeline hydrogenation unit of fumed silica for the present invention.
Embodiment
The present invention is described in detail below in conjunction with the drawings and specific embodiments.
Referring to Fig. 1, the present invention is used to produce the pipeline hydrogenation unit of fumed silica, links to each other with the production equipment of fumed silica.Comprise combustion of hydrogen device 1, hydrogen admission passage 2 and air inlet pipeline 3.Combustion of hydrogen device 1 is installed in the cooling tube in the production equipment or the pipe bent position of collector 4, and the direction of the flame 5 during 1 burning of combustion of hydrogen device is consistent with the Flow of Goods and Materials direction; Side at combustion of hydrogen device 1 rear portion is provided with hydrogen inlet pipe 11, is provided with air intlet pipe 12 in combustion of hydrogen device rear end; Hydrogen admission passage 2 links to each other with hydrogen inlet pipe 11, and air inlet pipeline 3 links to each other with air intlet pipe 12.
The principle of work that is used to produce the pipeline hydrogenation unit of fumed silica of the present invention 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 the free chlorine of not participating in incendiary hydrogen and silica sphere react and produce hydrogenchloride and water, to realize removing the free chlorine of silica sphere.
Claims (3)
1. a pipeline hydrogenation unit that is used to produce fumed silica links to each other with the production equipment of fumed silica; It is characterized in that: comprise combustion of hydrogen device, hydrogen admission passage and air inlet pipeline; The combustion of hydrogen device is installed in the cooling tube in the production equipment or the pipe bent position of collector, and the flame direction the during burning of combustion of hydrogen device is consistent with the Flow of Goods and Materials direction; Side at combustion of hydrogen device rear portion is provided with the hydrogen inlet pipe, is provided with the air intlet pipe in combustion of hydrogen device rear end; The hydrogen admission passage links to each other with the hydrogen inlet pipe, and the air inlet pipeline links to each other with the air intlet pipe.
2. the pipeline hydrogenation unit that is used to produce fumed silica as claimed in claim 1 is characterized in that: described hydrogen admission passage 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. the pipeline hydrogenation unit that is used to produce fumed silica 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 201110056719 CN102120580B (en) | 2011-03-10 | 2011-03-10 | Pipeline hydrogenation device used for producing gaseous phase method silicon dioxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110056719 CN102120580B (en) | 2011-03-10 | 2011-03-10 | Pipeline hydrogenation device used for producing gaseous phase method silicon dioxide |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102120580A true CN102120580A (en) | 2011-07-13 |
| CN102120580B CN102120580B (en) | 2013-01-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110056719 Expired - Fee Related CN102120580B (en) | 2011-03-10 | 2011-03-10 | Pipeline hydrogenation device used for producing gaseous phase method silicon dioxide |
Country Status (1)
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| CN (1) | CN102120580B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102941014A (en) * | 2012-10-30 | 2013-02-27 | 广州吉必盛科技实业有限公司 | Method and device for eliminating chlorine generated in vapor phase method oxide production process |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040156773A1 (en) * | 2002-11-26 | 2004-08-12 | Cabot Corporation | Fumed metal oxide particles and process for producing the same |
| DE10349284A1 (en) * | 2003-10-23 | 2005-06-16 | Wacker-Chemie Gmbh | Apparatus for producing ultrapure silica, useful for making e.g. light-conducting fibers, by combustion, is made from metal-free components |
| CN1686791A (en) * | 2005-03-28 | 2005-10-26 | 广州吉必时科技实业有限公司 | Technique of energy saving vapor phase process in high efficiency for synthesizing carbon white |
| 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 |
| CN202030534U (en) * | 2011-03-10 | 2011-11-09 | 上海竟茨环保科技有限公司 | Hydrogenation device of pipeline for producing silicon dioxide by using vapor phase process |
-
2011
- 2011-03-10 CN CN 201110056719 patent/CN102120580B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040156773A1 (en) * | 2002-11-26 | 2004-08-12 | Cabot Corporation | Fumed metal oxide particles and process for producing the same |
| DE10349284A1 (en) * | 2003-10-23 | 2005-06-16 | Wacker-Chemie Gmbh | Apparatus for producing ultrapure silica, useful for making e.g. light-conducting fibers, by combustion, is made from metal-free components |
| CN1686791A (en) * | 2005-03-28 | 2005-10-26 | 广州吉必时科技实业有限公司 | Technique of energy saving vapor phase process in high efficiency for synthesizing carbon white |
| 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 |
| CN202030534U (en) * | 2011-03-10 | 2011-11-09 | 上海竟茨环保科技有限公司 | Hydrogenation device of pipeline for producing silicon dioxide by using vapor phase process |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102941014A (en) * | 2012-10-30 | 2013-02-27 | 广州吉必盛科技实业有限公司 | Method and device for eliminating chlorine generated in vapor phase method oxide production process |
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| CN102120580B (en) | 2013-01-02 |
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Granted publication date: 20130102 Termination date: 20160310 |
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