CN201850146U - Continuous and automatic silicon powder feeding device - Google Patents
Continuous and automatic silicon powder feeding device Download PDFInfo
- Publication number
- CN201850146U CN201850146U CN2010205941475U CN201020594147U CN201850146U CN 201850146 U CN201850146 U CN 201850146U CN 2010205941475 U CN2010205941475 U CN 2010205941475U CN 201020594147 U CN201020594147 U CN 201020594147U CN 201850146 U CN201850146 U CN 201850146U
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- trichlorosilane
- silicon powder
- continuous
- furnace
- synthesising
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Abstract
The utility model provides a continuous and automatic silicon powder feeding device, aiming at solving the problem of influence on production due to the fluctuation of the material layer of a trichlorosilane synthesising furnace caused by existing discontinuous silicon powder feeding means, and. A silicon powder dryer is connected at the inlet of the upper end of a starlike feeding machine; and an outlet connected with the material inlet of the trichlorosilane synthesising furnace is arranged at the lower end of the starlike feeding machine. In the continuous and automatic silicon powder feeding device, the continuous starlike feeding machine is applied to the production of trichlorosilane, the silicon powder feeding means of the trichlorosilane synthesising furnace is changed to continuous and automatic feeding by the starlike feeding machine from the past discontinuous feeding, so as to stabilize the silicon powder material layer of the trichlorosilane synthesising furnace; the boiling of silicon powder in the trichlorosilane synthesising furnace is in a good condition, the production is safe and stable, the production capacity of a single reacting furnace is improved, and the production can be stably controlled conveniently.
Description
Technical field
The utility model belongs to trichlorosilane production unit field, is specifically related to the charging device that silicon powder particle is put into trichlorosilane synthetic furnace.
Background technology
In trichlorosilane was produced, HCL gas and solid silicon powder particles reacted about high temperature 280 ~ 320 degree in trichlorosilane synthetic furnace (ebullated bed) and generate trichlorosilane and silicon tetrachloride gas.How the silica flour solid particulate is added in the airtight trichlorosilane Reaktionsofen, is the long-term a great problem of scratching manufacturing enterprise that is stranded.All adopt the silica flour intermittent charging in the industry, being about to a certain amount of silica flour directly puts into airtight silica powder drying device and carries out drying, after treating that the interior silica flour primitive reaction of trichlorosilane Reaktionsofen is intact, quantitative silica flour is put in the trichlorosilane Reaktionsofen with nitrogen is disposable.This mode adds silica flour can make the interior silica flour bed of material of trichlorosilane Reaktionsofen just fluctuate bigger, cause the silica flour boiling state in the Reaktionsofen to change, silica flour boiling effect directly influences the reaction of trichlorosilane, reduces the throughput of separate unit trichlorosilane stove and the purity of crude product trichlorosilane.The fluctuation of the silica flour bed of material also can influence the temperature of reaction of trichlorosilane Reaktionsofen and the fluctuation of pressure, is unfavorable for production control.
The utility model content
The utility model is intended to solve the influence of trichlorine hydrogen synthetic furnace bed of material fluctuation to producing that existing silica flour intermittent charging mode causes.Provide a kind of silica flour continuous automatic feeding device, can feed in raw material continuously and automatically.
For achieving the above object, the technical solution adopted in the utility model is as follows:
The continuous automatic feeding device of silica flour comprises star-like charging machine, it is characterized in that: the import of described star charging machine upper end connects the silica powder drying device, and the lower end is provided with the outlet that connects the trichlorosilane synthetic furnace opening for feed.
The import and export of described star-like charging machine are provided with trip valve and hand valve.
Described star-like charging machine adopts outboard bearing structure and variable-frequence governor.
The beneficial effects of the utility model show:
Study and improve by silica flour feed way, adopted star-like continuous charging machine to apply to trichlorosilane and produced trichlorosilane synthetic furnace.Use to such an extent that the reinforced discontinuity by the past of silica flour of trichlorosilane synthetic furnace is reinforced, change continuous self-feeding into by star-like charging machine, make the trichlorosilane synthetic furnace silica flour bed of material stable, silica flour boiling in the trichlorosilane stove in order, production safety is steady, improve the throughput of separate unit Reaktionsofen, be convenient to produce steady control.
Description of drawings
Fig. 1 is the utility model structure principle chart
Mark among the figure
1 star charging machine, 2 silica powder drying devices, 3 trichlorosilane synthetic furnaces, 4 valves, 5 frequency control motors.
Embodiment
By research practice, adopt star-like charging machine to realize the silica flour continuously feeding.Star-like charging machine flow passage components impeller, lining all adopt the Wimet technology, the wear resistance of raising equipment, prolong service life of equipment, adopt resistant to elevated temperatures asbestos packing sealing at two ends, star-like charging machine adopts outboard bearing structure and variable-frequence governor, can realize the rotating speed electrodeless variable-speed, be convenient to control automatically the add-on of silica flour.Import and export at star-like charging machine are provided with trip valve and hand valve, and import is the silica powder drying device of fully-closed, are connected concora crush by equilibration tube between trichlorosilane synthetic furnace and the silica powder drying device, and the silica powder drying device of fully-closed is replaced and protected with nitrogen.
Claims (3)
1. the continuous automatic feeding device of silica flour comprises star-like charging machine, it is characterized in that: the import of described star charging machine upper end connects the silica powder drying device, and the lower end is provided with the outlet that connects the trichlorosilane synthetic furnace opening for feed.
2. the continuous automatic feeding device of silica flour according to claim 1 is characterized in that: the import and export of described star-like charging machine are provided with trip valve and hand valve.
3. the continuous automatic feeding device of silica flour according to claim 1 is characterized in that: described star-like charging machine adopts outboard bearing structure and variable-frequence governor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205941475U CN201850146U (en) | 2010-11-05 | 2010-11-05 | Continuous and automatic silicon powder feeding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205941475U CN201850146U (en) | 2010-11-05 | 2010-11-05 | Continuous and automatic silicon powder feeding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201850146U true CN201850146U (en) | 2011-06-01 |
Family
ID=44092548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205941475U Expired - Fee Related CN201850146U (en) | 2010-11-05 | 2010-11-05 | Continuous and automatic silicon powder feeding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201850146U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106145117A (en) * | 2015-03-10 | 2016-11-23 | 周正平 | A kind of reduction furnace feeding method in production of polysilicon |
-
2010
- 2010-11-05 CN CN2010205941475U patent/CN201850146U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106145117A (en) * | 2015-03-10 | 2016-11-23 | 周正平 | A kind of reduction furnace feeding method in production of polysilicon |
| CN106145117B (en) * | 2015-03-10 | 2018-02-06 | 周正平 | A kind of reduction furnace feeding method in production of polysilicon |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110601 Termination date: 20161105 |