CN102120580B - 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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- CN102120580B CN102120580B CN 201110056719 CN201110056719A CN102120580B CN 102120580 B CN102120580 B CN 102120580B CN 201110056719 CN201110056719 CN 201110056719 CN 201110056719 A CN201110056719 A CN 201110056719A CN 102120580 B CN102120580 B CN 102120580B
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- hydrogen
- pipeline
- air
- hydrogen gas
- silicon dioxide
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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 hydrogenation device of pipeline for the production of 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 occur in the preparation aerosil.Because free chlorine is attached to silica sphere, directly affect the quality of aerosil.If be used for the high-temp glue industry, the glue of producing can turn to be yellow and is opaque etc.This vapor phase process titanium dioxide that also is a few days ago domestic enterprise produces can't be used the reason in the high-temp glue industry.In order to remove the free chlorine that is 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, so the hydrogen of participation burning and the free chlorine in the silicon-dioxide react and produce hydrogenchloride and water, can realize removing the free chlorine of silica sphere.
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 hydrogenation device of pipeline for the production of fumed silica, to realize removing the free chlorine of silica sphere.
To achieve these goals, the present invention has adopted following technical scheme: a kind of hydrogenation device of pipeline for the production of fumed silica links to each other with the production equipment of fumed silica; Comprise hydrogen gas combustor, hydrogen gas pipeline and air inlet pipeline; Hydrogen gas combustor is installed in cooling tube in the production equipment or the pipe bent position of collector, and the flame direction during the hydrogen gas combustor 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.
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, 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 that the present invention is for the production of the structural representation of the hydrogenation device of pipeline of fumed silica.
Embodiment
The present invention is described in detail below in conjunction with the drawings and specific embodiments.
Referring to Fig. 1, the present invention links to each other with the production equipment of fumed silica for the production of the hydrogenation device of pipeline of fumed silica.Comprise hydrogen gas combustor 1, hydrogen gas pipeline 2 and air inlet pipeline 3.Hydrogen gas combustor 1 is installed in cooling tube in the production equipment or the pipe bent position of collector 4, and the direction of the flame 5 during hydrogen gas combustor 1 burning is consistent with the Flow of Goods and Materials direction; Side at hydrogen gas combustor 1 rear portion is provided with hydrogen inlet pipe 11, is provided with air intlet pipe 12 in the hydrogen gas combustor rear end; Hydrogen gas pipeline 2 links to each other with hydrogen inlet pipe 11, and air inlet pipeline 3 links to each other with air intlet pipe 12.
Hydrogen gas pipeline 2 among the present invention comprises hydrogen ball valve 21, hydrogen reducing valve 22, hydrogen pressure table 23, safety cut-off valve 24 and the hydrogen orifice-plate flowmeter 25 that order links to each other by pipeline.
Air inlet pipeline 3 among the present invention comprises Air ball valve 31, air reducing valve 32, air manometer 33, electric operator 34 and the air orifice-plate flowmeter 35 that order links to each other by pipeline.
The principle of work of the hydrogenation device of pipeline for the production 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 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.
Claims (3)
1. the hydrogenation device of pipeline for the production of fumed silica links to each other with the production equipment of fumed silica; It is characterized in that: comprise hydrogen gas combustor, hydrogen gas pipeline and air inlet pipeline; Hydrogen gas combustor is installed in cooling tube in the production equipment or the pipe bent position of collector, and the flame direction during the hydrogen gas combustor 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. the hydrogenation device of pipeline for the production of fumed silica 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. the hydrogenation device of pipeline for the production of 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 CN102120580A (en) | 2011-07-13 |
| CN102120580B true CN102120580B (en) | 2013-01-02 |
Family
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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)
| Country | Link |
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| CN (1) | CN102120580B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102941014B (en) * | 2012-10-30 | 2014-10-01 | 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 (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1565400B1 (en) * | 2002-11-26 | 2019-04-10 | Cabot Corporation | Fumed metal oxide particles and process for producing the same |
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2011
- 2011-03-10 CN CN 201110056719 patent/CN102120580B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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| Publication number | Publication date |
|---|---|
| CN102120580A (en) | 2011-07-13 |
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