CN205340286U - Liquid silicon tetrachloride filter structure - Google Patents
Liquid silicon tetrachloride filter structure Download PDFInfo
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- CN205340286U CN205340286U CN201620097241.7U CN201620097241U CN205340286U CN 205340286 U CN205340286 U CN 205340286U CN 201620097241 U CN201620097241 U CN 201620097241U CN 205340286 U CN205340286 U CN 205340286U
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Abstract
The utility model discloses a liquid silicon tetrachloride filter structure except having top cap, filter screen, cylinder body, memory, inlet pipe, feed valve, discharging pipe, bleeder valve, discharge pipe and dump valve, still has intake pipe, admission valve, outlet duct, air outlet valve, explodes gas stone and hydrolysises the pond, passing through the moisture free hot -air of admission valve input during the use and after 10~90 minutes opening the filter top cap, take out the clearance with the filter screen, do not had remaining liquid silicon tetrachloride on filter screen, impurity and the cylinder body inner wall at this moment, consequently the hydrochloric acid of yet can not hydrolysising can not lead to the fact harm to equipment and operating personnel, provides the life of equipment, gaseous state silicon tetrachloride gets into discharge pipe and outlet duct along with the hot -air, through exploding during gas stone gets into the pond of hydrolysising, takes place hydrolysis reaction with water in the pond of hydrolysising, and to adding alkaline substance in the pond of hydrolysising, the pH value of the pond normal water of will hydrolysising is modulated about 7 and is got into back processing program, can not lead to the fact harm to the environment again.
Description
Technical field this utility model relates to a kind of filtration device structure, the filtration device structure used when filtering particularly in liquid silicon tetrachloride.
It is by after the hydrogen of about 90 DEG C, air and the mixing of Silicon chloride. gas that background technology vapor phase method produces silicon dioxide, the pyrohydrolysis that burns in combustion furnace generates silicon dioxide, then through aggregator aggregates, gas solid separation, deacidification dehydration, after, become product through vacuum packaging.Liquid silicon tetrachloride is the by-product after silica flour separates with rectification after hydrogen chloride gas gas-solid reaction.Liquid silicon tetrachloride still contains minute quantity silica flour and silicon dioxide.Generally, remove the pretreating process of liquid silicon tetrachloride impurity for filtering and rectification, but rectification is relatively costly.Therefore, filtration is adopted to carry out removal of contamination under meeting material content situation up to standard.
Current liquid silicon tetrachloride filter is mainly rustless steel basket filter and y-type filter, and its filter material is all the stainless steel filtering net being lined with punching corrosion resistant plate.After filter uses a period of time, impurity can block sieve meshes and affect filter efficiency, it is therefore desirable to periodic cleaning.Current method for cleaning is: first close the liquid silicon tetrachloride inlet valve of filter top, and the liquid silicon tetrachloride of filter interior is put into memorizer by opened filter bottom valve, then is opened by filter top cover, and filter screen is taken out cleaning.Remaining is had in the filter due to liquid silicon tetrachloride, when opened filter top cover and taking-up filter screen, Silicon chloride. runs into the moisture violent hydrolysis of generation in air, the rustless steel filter material of filter and sealing member are not only produced serious corrosion by the hydrochloric acid produced, cause the damage of filter, and the skin and eyes to operator causes bigger injury, also contaminated environment.Therefore, how to avoid the hydrochloric acid harm to equipment, environment and operator when clearing up liquid silicon tetrachloride filter, be an important problem.
Summary of the invention the purpose of this utility model seeks to provide a kind of liquid silicon tetrachloride filtration device structure, improves filtration device structure, it is to avoid the hydrochloric acid harm to environment, equipment and operator.
In order to achieve the above object, the liquid silicon tetrachloride filtration device structure that this utility model provides is except having top cover, filter screen, cylinder body, memorizer, feed pipe, inlet valve, discharge nozzle, outlet valve, discharge pipe and dump valve, also there is air inlet pipe, intake valve, escape pipe, air outlet valve, gas explosion stone and hydrolytic tank, wherein, described feed pipe is connected to top cover upper end, and described inlet valve is placed on feed pipe；Described top cover is fixed on cylinder body top by Flange joint；Described filter screen is fixed on top cover bottom and is placed in cylinder body；Described outlet valve is placed on the discharge nozzle of filter cylinder body upper outside；Described discharge pipe connects filter cylinder base and memorizer, and described dump valve is placed on discharge pipe；Described air inlet pipe is connected on the feed pipe between inlet valve and top cover, and described intake valve is placed in air inlet pipe；Described escape pipe is connected on the discharge pipe between cylinder base and dump valve, and described air outlet valve is placed on escape pipe；Described gas explosion stone is fixed on escape pipe end, and escape pipe end inserts in hydrolytic tank.It addition, aeration stone is also Bubbled stone, superhard corundum is adopted to form through high temperature sintering, there is provided bigger contact area when gas-liquid exchanges, uniformly, gas diffusibility can be good in bubble diffusion, corrosion resistance is strong, is used herein as the dissolving that can be greatly enhanced gaseous silicon in hydrolytic tank.
For making this utility model be suitable to application further, the temperature being inputted moisture-free hot-air by intake valve is 80～220 DEG C.Temperature cannot gasify lower than 80 DEG C of liquid silicon tetrachlorides then remained, and filter screen is then easily damaged by temperature higher than 220 DEG C.
For making this utility model be suitable to application further, air inlet pipe and escape pipe are by rustless steel manufacture.So it can be avoided that Silicon chloride. corrodes body.
The liquid silicon tetrachloride filtration device structure that this utility model provides has positive effect: open air outlet valve after closing dump valve, moisture free hot-air is inputted again through intake valve, hot-air enters in cylinder body, by filter screen, the liquid silicon tetrachloride gasification of residual on impurity and inboard wall of cylinder block, filter top cover is opened after passing into 10～90 minutes by hot-air, filter screen is taken out cleaning, now filter screen, the liquid silicon tetrachloride not remained on impurity and inboard wall of cylinder block, without hydrolysis hydrochloric acid, work the mischief thus without to equipment and operator, the service life of offer equipment；Gaseous silicon enters discharge pipe and escape pipe along with hot-air, enter in hydrolytic tank by gas explosion stone, with the water generation hydrolysis in hydrolytic tank, alkaline matter is added again in hydrolytic tank, the pH value of water in hydrolytic tank is modulated to about 7 entrance later process programs, environment will not be worked the mischief.
Accompanying drawing illustrates that this utility model will be further described in conjunction with accompanying drawing, refer to accompanying drawing:
Accompanying drawing 1 represents schematic diagram of the present utility model.
Structure shown in accompanying drawing 1 includes: feed pipe 1, inlet valve 2, intake valve 3, air inlet pipe 4, Flange joint 5, top cover 6, outlet valve 7, discharge nozzle 8, filter screen 9, cylinder body 10, air outlet valve 11, escape pipe 12, dump valve 13, discharge pipe 14, hydrolytic tank 15, gas explosion stone 16, memorizer 17.
The liquid silicon tetrachloride filtration device structure that detailed description of the invention this utility model provides is except having top cover 6, filter screen 9, cylinder body 10, memorizer 17, feed pipe 1, inlet valve 2, discharge nozzle 8, outlet valve 7, discharge pipe 14 and dump valve 13, also there is air inlet pipe 4, intake valve 3, escape pipe 12, air outlet valve 11, gas explosion stone 16 and hydrolytic tank 15, wherein, described feed pipe 1 is connected to top cover 6 upper end, and described inlet valve 2 is placed on feed pipe 1；Described top cover 6 is fixed on cylinder body 10 top by Flange joint 5；Described filter screen 9 is fixed on top cover 6 bottom and is placed in cylinder body 10；Described outlet valve 7 is placed on the discharge nozzle 8 of filter cylinder body 10 upper outside；Described discharge pipe 14 connects bottom filter cylinder body 10 and memorizer 17, and described dump valve 13 is placed on discharge pipe 14；Described air inlet pipe 4 is connected on the feed pipe 1 between inlet valve 2 and top cover 6, and described intake valve 3 is placed in air inlet pipe 4；Described escape pipe 12 is connected on the discharge pipe 14 bottom cylinder body 10 and between dump valve 13, and described air outlet valve 11 is placed on escape pipe 12；Described gas explosion stone 16 is fixed on escape pipe 12 end, and escape pipe 12 end inserts in hydrolytic tank 15.It addition, aeration stone is also Bubbled stone, superhard corundum is adopted to form through high temperature sintering, there is provided bigger contact area when gas-liquid exchanges, uniformly, gas diffusibility can be good in bubble diffusion, corrosion resistance is strong, is used herein as the dissolving that can be greatly enhanced gaseous silicon in hydrolytic tank 15.
For making this utility model be suitable to application further, the temperature being inputted moisture-free hot-air by intake valve 3 is 80～220 DEG C.Temperature cannot gasify lower than 80 DEG C of liquid silicon tetrachlorides then remained, and filter screen 9 is then easily damaged by temperature higher than 220 DEG C.
For making this utility model be suitable to application further, air inlet pipe 4 and escape pipe 12 are by rustless steel manufacture.So it can be avoided that Silicon chloride. corrodes body.
The liquid silicon tetrachloride filtration device structure that this utility model provides has positive effect: open air outlet valve 11 after closing dump valve 13, moisture free hot-air is inputted again through intake valve 3, hot-air enters in cylinder body 10, by filter screen 9, the liquid silicon tetrachloride gasification of residual on impurity and cylinder body 10 inwall, filter top cover 6 is opened after passing into 10～90 minutes by hot-air, filter screen 9 is taken out cleaning, now filter screen 9, the liquid silicon tetrachloride not remained on impurity and cylinder body 10 inwall, without hydrolysis hydrochloric acid, work the mischief thus without to equipment and operator, the service life of offer equipment；Gaseous silicon enters discharge pipe 14 and escape pipe 12 along with hot-air, enter in hydrolytic tank 15 by gas explosion stone 16, with the water generation hydrolysis in hydrolytic tank 15, alkaline matter is added again in hydrolytic tank 15, the pH value of water in hydrolytic tank 15 is modulated to about 7 entrance later process programs, environment will not be worked the mischief.
This utility model protection domain relates to all the above version.
Claims (3)
1. a liquid silicon tetrachloride filtration device structure, there is top cover (6), filter screen (9), cylinder body (10), memorizer (17), feed pipe (1), inlet valve (2), discharge nozzle (8), outlet valve (7), discharge pipe (14) and dump valve (13), wherein, described feed pipe (1) is connected to top cover (6) upper end, and described inlet valve (2) is placed on feed pipe (1)；Described top cover (6) is fixed on cylinder body (10) top by Flange joint (5)；Described filter screen (9) is fixed on top cover (6) bottom and is placed in cylinder body (10)；Described outlet valve (7) is placed on the discharge nozzle (8) of filter cylinder body (10) upper outside；Described discharge pipe (14) connects filter cylinder body (10) bottom and memorizer (17), described dump valve (13) is placed on discharge pipe (14), it is characterised in that: there is air inlet pipe (4), intake valve (3), escape pipe (12), air outlet valve (11), gas explosion stone (16) and hydrolytic tank (15)；Described air inlet pipe (4) is connected on the feed pipe (1) between inlet valve (2) and top cover (6), and described intake valve (3) is placed in air inlet pipe (4)；Described escape pipe (12) is connected on the discharge pipe (14) between cylinder body (10) bottom and dump valve (13), and described air outlet valve (11) is placed on escape pipe (12)；Described gas explosion stone (16) is fixed on escape pipe (12) end, and escape pipe (12) end inserts in hydrolytic tank (15).
2. liquid silicon tetrachloride filtration device structure described in claim 1, it is characterised in that: the temperature being inputted moisture-free hot-air by intake valve (3) is 80～220 DEG C.
3. liquid silicon tetrachloride filtration device structure described in claim 1, it is characterised in that: air inlet pipe (4) and escape pipe (12) are by rustless steel manufacture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620097241.7U CN205340286U (en) | 2016-01-22 | 2016-01-22 | Liquid silicon tetrachloride filter structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620097241.7U CN205340286U (en) | 2016-01-22 | 2016-01-22 | Liquid silicon tetrachloride filter structure |
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| Publication Number | Publication Date |
|---|---|
| CN205340286U true CN205340286U (en) | 2016-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620097241.7U Active CN205340286U (en) | 2016-01-22 | 2016-01-22 | Liquid silicon tetrachloride filter structure |
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| CN (1) | CN205340286U (en) |
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2016
- 2016-01-22 CN CN201620097241.7U patent/CN205340286U/en active Active
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| CP01 | Change in the name or title of a patent holder |
Address after: 614200 Mount Emei city of Sichuan Province Sui Shan Zhen Da Miao Road No. Patentee after: Mount Emei Changqing New Material Co. Ltd. Address before: 614200 Mount Emei city of Sichuan Province Sui Shan Zhen Da Miao Road No. Patentee before: EMEISHAN CHANGQING CHEMICAL NEW MATERIAL CO., LTD. |