CN202297153U - Improved trichlorosilane synthetic furnace - Google Patents
Improved trichlorosilane synthetic furnace Download PDFInfo
- Publication number
- CN202297153U CN202297153U CN2011203914321U CN201120391432U CN202297153U CN 202297153 U CN202297153 U CN 202297153U CN 2011203914321 U CN2011203914321 U CN 2011203914321U CN 201120391432 U CN201120391432 U CN 201120391432U CN 202297153 U CN202297153 U CN 202297153U
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- Prior art keywords
- funnel cap
- guide cylinder
- reduced
- blast cap
- synthetic furnace
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Abstract
The utility model relates to an improved trichlorosilane synthetic furnace, which belongs to the technical field of chemical production equipment, aims to solve the technical problem that a lower sealing end of the synthetic furnace is blocked and burnt frequently, and has the technical scheme that: the improved trichlorosilane synthetic furnace is formed by a furnace body, a sieve plate and a funnel cap, wherein a guide cylinder is additionally arranged in a cavity of the funnel cap and is a cylinder with two opened ends; an opening on the lower end of the guide cylinder is corresponding to an air inlet of the funnel cap; an opening on the upper end of the guide cylinder is higher than an air outlet of the funnel cap; and a clearance is formed between the periphery of the guide cylinder and the inner wall of the funnel cap. When the improved trichlorosilane synthetic furnace is in use, a wall of the guide cylinder is higher than an air discharging hole of the funnel cap, so that silica powder deposited on the funnel cap cannot be flowed into the bottom part of the furnace body through the discharging hole, blockage caused by the silica powder deposited on the bottom of the furnace body is avoided, the contact of the silica powder and hydrogen chloride in the funnel cap is reduced due to the guide cylinder, high temperature generated in the funnel cap due to the reaction of the silica powder and the hydrogen chloride is reduced, the damage of the funnel cap is reduced, the overhauling frequency is reduced, the production cost is reduced, and the smooth production process is ensured.
Description
Technical field
The utility model relates to a kind of synthetic furnace that in trichlorosilane is produced, generally uses, and belongs to the chemical production equipment technical field.
Background technology
Along with the fast development of production of polysilicon, also obtained great increase as the trichlorosilane product demand amount of producing the polysilicon main raw material.In the process that increases trichlorosilane output, improve the quality of products, reduce cost consumption, expanding production capacity becomes the target that each manufacturer competitively chases.It is found that in the trichlorosilane production practice existing synthetic furnace blast cap is in synthetic furnace normal reaction process, it is inner that hydrogen chloride gas gets into blast cap from pore, gets into silicon powder layer through pod apertures.When occurring producing when unusual because of factors such as powers failure cause, can cause the unexpected stop supplies of hydrogenchloride, the silica flour that causes piling up on the blast cap very easily flows into the synthetic furnace bottom through pod apertures and is full of silica flour bottom causing.When synthetic furnace bottom gets into hydrogen chloride gas once more, because furnace bottom is gathering the silica flour that flows down from the blast cap pod apertures, increased intake resistance, stifled full whole synthetic furnace bottom when serious causes the synthetic furnace can't works better, has only parking maintenance.Simultaneously, its material of blast cap is 16MnR, when hydrogenchloride and silica flour reaction, can emit reaction heat; Well-defined reaction temp 300---320 ℃; In the higher temperature environment of being everlasting, use to be easy to cause blast cap to burn out, need left and right sides blowing out cleaning in 10-14 days, and change blast cap.Clear up the synthetic furnace lower cover continually and not only cause output to descend, influenced the production capacity of trichlorosilane, also increased production cost simultaneously with the replacing blast cap.Carry out smoothly for fear of what damage, minimizing repair rate, the assurance of equipment were produced, be necessary the trichlorosilane synthetic furnace blast cap is transformed.
The utility model content
The utility model technical problem to be solved provides a kind ofly can be avoided the synthetic furnace lower cover to stop up and regular scaling loss, reduce repair rate, reduce production costs, guarantee the improved trichlorosilane synthetic furnace of enterprise's quantity-produced.
The technical scheme that solves the problems of the technologies described above is:
A kind of improved trichlorosilane synthetic furnace, it is made up of body of heater, sieve plate, blast cap, and sieve plate is fixed on the body of heater middle and lower part; A plurality of blast caps evenly are installed on the sieve plate, and its improvements are to have increased guide shell in the cavity of blast cap; Guide shell is the cylinder of both ends open; The lower ending opening of guide shell is corresponding with the air inlet port of blast cap, and the open upper end of guide shell is higher than the production well of blast cap, and is gapped between the periphery of guide shell and the inwall of blast cap.
Adopt this improved trichlorosilane synthetic furnace, after gasiform hydrogenchloride gets into blast cap from sieve plate, need to discharge from the production well of blast cap downwards through the upper edge of guide shell; When the unexpected stop supplies of hydrogenchloride, because the water conservancy diversion barrel is higher than the venting hole of blast cap, the silica flour of piling up on the blast cap can not flow into bottom of furnace body through venting hole; Avoided bottom of furnace body to pile up the obstruction that silica flour causes, guide shell has also reduced silica flour and hydrogenchloride contacting in blast cap simultaneously, has reduced the high temperature that in blast cap, produces because of silica flour and hcl reaction; Reduced the damage of blast cap; Thereby reduced repair rate, reduced production cost, guaranteed carrying out smoothly of production.
Description of drawings
Fig. 1 is the structural representation of the blast cap of the utility model;
Fig. 2 is the one-piece construction synoptic diagram of the utility model.
Mark is following among the figure: body of heater 1, sieve plate 2, blast cap 3, guide shell 4, air inlet port 5, production well 6.
Embodiment
Show among the figure that the utility model is made up of body of heater 1, sieve plate 2, blast cap 3, body of heater 1 is a round shape, and the middle and lower part of body of heater 1 embeds sieve plate 2, a plurality of blast caps 3 of uniform distribution on the sieve plate.
Increased guide shell 4 in the cavity of blast cap 3; Guide shell 4 is the cylinder of both ends open; The lower ending opening of guide shell 4 is corresponding with the air inlet port 5 of blast cap 3, and hydrogen chloride gas gets into guide shell 4 by air inlet port 5, flows out from the upper end of guide shell 4; Get in the cavity of blast cap 3, discharge by the production well 6 of blast cap 3 bottoms again.
When the unexpected stop supplies of hydrogenchloride; Because guide shell 4 barrels are higher than the venting hole 6 of blast cap 3, the silica flour of piling up on the blast cap 3 can not flow into the bottom of body of heater 1 through venting hole 6, has avoided body of heater 1 bottom to pile up the obstruction that silica flour causes; Guide shell 4 has also reduced silica flour and hydrogenchloride contacting in blast cap 3 simultaneously; Reduced the high temperature that in blast cap 3, produces because of silica flour and hcl reaction, reduced the damage of blast cap 3, thereby reduced repair rate; Reduce production cost, guaranteed carrying out smoothly of production.
Claims (1)
1. improved trichlorosilane synthetic furnace; It is made up of body of heater (1), sieve plate (2), blast cap (3); Sieve plate (2) is fixed on the middle and lower part of body of heater (1) 1, and a plurality of blast caps (3) evenly are installed on the sieve plate (2), it is characterized in that: increased guide shell (4) in the cavity of blast cap (3); Guide shell (4) is the cylinder of both ends open; The lower ending opening of guide shell (4) is corresponding with the air inlet port (5) of blast cap (3), and the open upper end of guide shell (4) is higher than the production well (6) of blast cap (3), and is gapped between the inwall of the periphery of guide shell (4) and blast cap (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203914321U CN202297153U (en) | 2011-10-14 | 2011-10-14 | Improved trichlorosilane synthetic furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203914321U CN202297153U (en) | 2011-10-14 | 2011-10-14 | Improved trichlorosilane synthetic furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202297153U true CN202297153U (en) | 2012-07-04 |
Family
ID=46366091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203914321U Expired - Fee Related CN202297153U (en) | 2011-10-14 | 2011-10-14 | Improved trichlorosilane synthetic furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202297153U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105645415A (en) * | 2016-03-16 | 2016-06-08 | 黄河水电光伏产业技术有限公司 | Gas flow controller for polycrystalline silicon reduction furnace |
| CN107619051A (en) * | 2017-09-20 | 2018-01-23 | 河南尚宇新能源股份有限公司 | A kind of method of trichlorosilane synthetic furnace and its volume increase consumption reduction |
-
2011
- 2011-10-14 CN CN2011203914321U patent/CN202297153U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105645415A (en) * | 2016-03-16 | 2016-06-08 | 黄河水电光伏产业技术有限公司 | Gas flow controller for polycrystalline silicon reduction furnace |
| WO2017156952A1 (en) * | 2016-03-16 | 2017-09-21 | 严利容 | Gas-flow controller for polysilicon reducing furnace |
| CN107619051A (en) * | 2017-09-20 | 2018-01-23 | 河南尚宇新能源股份有限公司 | A kind of method of trichlorosilane synthetic furnace and its volume increase consumption reduction |
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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 |
Granted publication date: 20120704 Termination date: 20141014 |
|
| EXPY | Termination of patent right or utility model |