CN202199222U - Sieve-plate tower plate for removing dust and high-boiling residues in trichlorosilane synthesis tail gas - Google Patents
Sieve-plate tower plate for removing dust and high-boiling residues in trichlorosilane synthesis tail gas Download PDFInfo
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- CN202199222U CN202199222U CN 201120290933 CN201120290933U CN202199222U CN 202199222 U CN202199222 U CN 202199222U CN 201120290933 CN201120290933 CN 201120290933 CN 201120290933 U CN201120290933 U CN 201120290933U CN 202199222 U CN202199222 U CN 202199222U
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Abstract
The utility model discloses a sieve-plate tower plate for removing dust and high-boiling residues in trichlorosilane synthesis tail gas. The opening rate of the tower plate is 8% to 12%, openings are uniformly distributed in a regular triangle shape, the number of the openings of the tower plate is 1500 to 1700, the distance between two adjacent opening centers is 15 to 17mm, and Q235 ordinary carbon structural steel is selected for the material. The tower plate has simple and practical structure. With the adoption of the sieve-plate tower plate, dust and the high-boiling residues can not be brought to the next system, chlorosilane solution does not contain suspended solids and impurities fundamentally, the purity is high; and a trichlorosilane system, a tail gas processing system and a distillation system can maintain long-term stable production, thereby playing a major role in promoting entire production of polysilicon.
Description
Technical field
The utility model relates to a kind of production equipment of polysilicon industry, particularly a kind of sieve-plate tower column plate.
Background technology
At present, in the production of each enterprise of polysilicon industry, the processing method of technique of trichlorosilane synthetic tail gas has two kinds:
1, wet dedusting: spray column, packed tower, sieve-plate tower etc. are arranged.
2, dry method dust: mainly contain cyclonic filter method, sedimentation, electrostatic method, cloth bag method.
In the actual production,, in dedusting, can also remove high-boiling components, reduce the production load of follow-up rectification working process because wet dedusting has the irreplaceable benefit of additive method.But that high-boiling components is removed effect is limited for spray column in wet dedusting, and packed tower is prone to stifled, therefore with the preferably best dust collection method of sieve-plate tower.
Existing technique of trichlorosilane synthetic tail gas is to remove dust and high-boiling components through a sieve-plate tower, and the open ratio of plate of sieve-plate tower is 3.5%, because tolerance is bigger in producing; But open ratio of plate is too little; Can't reach the dedusting purpose, cause amounts of dust and high-boiling components to be brought to exhaust treatment system, make first-stage condenser and the absorption tower and the Analytic Tower easy blocking of exhaust treatment system; Synthetic and exhaust treatment system needs often will stop, and has a strong impact on production efficiency.
The utility model content
The goal of the invention of the utility model is: to the problem of above-mentioned existence; A kind of sieve-plate tower column plate of removing technique of trichlorosilane synthetic tail gas dust and high-boiling components is provided; This column plate can effectively purify the synthetic tail gas of trichlorosilane; Thereby guarantee that exhaust treatment system and distillation system do not receive the influence of dust and excessive high-boiling components, make trichlorosilane system, exhaust treatment system, distillation system can keep production continuously steady in a long-term.
The technical scheme that the utility model adopts is such:
A kind of sieve-plate tower column plate of removing technique of trichlorosilane synthetic tail gas dust and high-boiling components, said open ratio of plate is 8%-12%, perforate becomes triangular to be uniformly distributed with.
Open ratio of plate is brought up to 8%-12%, and simple and practical, dust, high-boiling components can not brought next system into, basic no suspended substance of chlorosilane solution and impurity, and purity is high.
The aligning method of round sieve has two kinds of square arrangement and rounded projections arranged, and through calculating, under the identical situation of slot size, rounded projections arranged is good than square arrangement, and it has higher percent opening, and can guarantee the homogeneity of compass screen surface all directions intensity.
Said column plate perforate quantity is 1500--2400, and the hole heart is apart from 15-17mm.
As preferably, said open ratio of plate is 10%, and perforate quantity is 2200, and the hole heart is apart from 16mm.
Said column plate material is selected the Q235 carbon structural steel for use.
Consider the characteristics and the cost problem of technique of trichlorosilane synthetic tail gas, the column plate material selects for use the Q235 carbon structural steel can satisfy production requirement.
In sum, owing to adopted technique scheme, the beneficial effect of the utility model is:
The said tower plate structure of the utility model is simple and practical, dust, high-boiling components can not brought next system into; Basic no suspended substance of chlorosilane solution and impurity; Purity is high; Trichlorosilane system, exhaust treatment system, distillation system can be kept production continuously steady in a long-term, thereby whole production of polysilicon is played great facilitation.
Description of drawings
Fig. 1 is the said tower plate structure sketch map of the utility model.
Fig. 2 is the enlarged drawing of I part among Fig. 1.
Mark among the figure: 1 is column plate, and 2 is elliptical aperture, and 3 is the hole.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is done detailed explanation.
For the purpose, technical scheme and the advantage that make the utility model is clearer,, the utility model is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
As shown in Figure 1, be the said a kind of sieve-plate tower tower plate structure of removing technique of trichlorosilane synthetic tail gas dust and high-boiling components of the utility model, column plate 1 percent opening is 10%.As shown in Figure 2,3 one-tenth triangulars of perforate are uniformly distributed with.Column plate 1 diameter is 880mm, and perforate 3 quantity are for being about 1600, and the hole heart is apart from 16mm.Column plate 1 material is selected the Q235 carbon structural steel for use.Column plate 1 is fixed through elliptical aperture 2 and surrounding devices.
As shown in Figure 1, be the said a kind of sieve-plate tower tower plate structure of removing technique of trichlorosilane synthetic tail gas dust and high-boiling components of the utility model, column plate 1 percent opening is 8%.As shown in Figure 2,3 one-tenth triangulars of perforate are uniformly distributed with.Column plate 1 diameter is 880mm, and perforate 3 quantity are for being about 1500, and the hole heart is apart from 17mm.Column plate 1 material is selected the Q235 carbon structural steel for use.Column plate 1 is fixed through elliptical aperture 2 and surrounding devices.
As shown in Figure 1, be the said a kind of sieve-plate tower tower plate structure of removing technique of trichlorosilane synthetic tail gas dust and high-boiling components of the utility model, column plate 1 percent opening is 12%.As shown in Figure 2,3 one-tenth triangulars of perforate are uniformly distributed with.Column plate 1 diameter is 880mm, and perforate 3 quantity are for being about 1700, and the hole heart is apart from 15mm.Column plate 1 material is selected the Q235 carbon structural steel for use.Column plate 1 is fixed through elliptical aperture 2 and surrounding devices.
The said sieve-plate tower column plate of the utility model is used for the meticulous dedusting of sieve-plate tower; Can effectively purify the synthetic tail gas of trichlorosilane; Thereby guarantee that exhaust treatment system and distillation system do not receive the influence of dust and excessive high-boiling components, make trichlorosilane system, exhaust treatment system, distillation system can keep production continuously steady in a long-term, through the checking of production practices; This cleaner has obtained the favorable comment of production line, and whole production of polysilicon is played great facilitation.
The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection domain of the utility model.
Claims (4)
1. sieve-plate tower column plate of removing technique of trichlorosilane synthetic tail gas dust and high-boiling components, it is characterized in that: said open ratio of plate is 8%-12%, and perforate becomes triangular to be uniformly distributed with.
2. the sieve-plate tower column plate of removing technique of trichlorosilane synthetic tail gas dust and high-boiling components according to claim 1 is characterized in that: said column plate perforate quantity is 1500--2400, and the hole heart is apart from 15-17mm.
3. the sieve-plate tower column plate of removing technique of trichlorosilane synthetic tail gas dust and high-boiling components according to claim 2 is characterized in that: said open ratio of plate is 10%, and perforate quantity is 1600, and the hole heart is apart from 16mm.
4. the sieve-plate tower column plate of removing technique of trichlorosilane synthetic tail gas dust and high-boiling components according to claim 3 is characterized in that: said column plate material is selected the Q235 carbon structural steel for use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120290933 CN202199222U (en) | 2011-08-11 | 2011-08-11 | Sieve-plate tower plate for removing dust and high-boiling residues in trichlorosilane synthesis tail gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120290933 CN202199222U (en) | 2011-08-11 | 2011-08-11 | Sieve-plate tower plate for removing dust and high-boiling residues in trichlorosilane synthesis tail gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202199222U true CN202199222U (en) | 2012-04-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120290933 Expired - Fee Related CN202199222U (en) | 2011-08-11 | 2011-08-11 | Sieve-plate tower plate for removing dust and high-boiling residues in trichlorosilane synthesis tail gas |
Country Status (1)
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| CN (1) | CN202199222U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104445281A (en) * | 2014-11-27 | 2015-03-25 | 河南尚宇新能源股份有限公司 | Waste residue comprehensive utilization method for trichlorosilane leaching system |
-
2011
- 2011-08-11 CN CN 201120290933 patent/CN202199222U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104445281A (en) * | 2014-11-27 | 2015-03-25 | 河南尚宇新能源股份有限公司 | Waste residue comprehensive utilization method for trichlorosilane leaching system |
| CN104445281B (en) * | 2014-11-27 | 2016-06-08 | 河南尚宇新能源股份有限公司 | Trichlorosilane elution circuit waste residue method of comprehensive utilization |
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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: 20120425 Termination date: 20140811 |
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| EXPY | Termination of patent right or utility model |