CN202237756U - Safe liquid seal tank - Google Patents
Safe liquid seal tank Download PDFInfo
- Publication number
- CN202237756U CN202237756U CN 201120338420 CN201120338420U CN202237756U CN 202237756 U CN202237756 U CN 202237756U CN 201120338420 CN201120338420 CN 201120338420 CN 201120338420 U CN201120338420 U CN 201120338420U CN 202237756 U CN202237756 U CN 202237756U
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- CN
- China
- Prior art keywords
- liquid seal
- tail gas
- safe liquid
- tank body
- utility
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a safe liquid seal tank, which belongs to the field of tail gas treatment of polycrystalline silicon. The safe liquid seal tank comprises a tank body, wherein a discharge tail gas inlet tube, a cleaning solution atomizer and a discharge tail gas outlet are connected at the top of the tank body. The discharge tail gas inlet tube is connected with a cleaning tower. An overflow tube is connected at side of the bottom of the tank body. The overflow tube is connected to a trough. The safe liquid seal tank has a simple structure, wide application scope, low cost, and is simple and convenient to operate, and easy to apply. The safe liquid seal tank can solve the problem of waste gas and liquid seal of the residual spraying tower, and further absorbs harmful gases in the discharge tail gas of the spraying tower, such as the problem that content of hydrogen chloride exceeds the standard.
Description
Technical field
The utility model relates to a kind of liquid seal can, particularly a kind of liquid seal can that can solve secondary exhaust gas washing tower discharging tail gas HCL content overproof problem.
Background technology
In the improvement Siemens process polycrystalline silicon production process, contain chlorosilane (mainly being dichloro-dihydro silicon, trichlorosilane), directly emptying in the tail gas that discharge in rectifying column, chlorosilane tank field, reduction, hydrogenation, CDI and synthetic workshop.Its normal processing method is following:
The tail gas of discharging from rectifying column, chlorosilane tank field, reduction, hydrogenation, CDI and synthetic workshop is delivered to the one-level exhaust gas washing tower through pipeline; In the one-level exhaust gas washing tower; Waste gas and cat head shower nozzle spray and being vaporific NaOH solution is following current in the same way down; Waste gas fully contacts with vaporific NaOH solution, the abundant hydrolysis of chlorosilane, and the HCl gas that produces after the hydrolysis is absorbed by the NaOH aqueous solution.The tail gas that absorbs of hydrolysis is not at the bottom of get into the secondary exhaust gas washing tower one-level exhaust gas washing tower bottom communicating pipe; In tower once more with cat head spray and under reverse contact of NaOH solution; The abundant hydrolysis of residual chlorine silane gas is also absorbed by the NaOH aqueous solution; At this moment, the chlorosilane in the waste gas is fully hydrolysis absorption, and the waste gas after the washing is discharged from secondary exhaust gas washing tower top.
See that from practical operation situation the subject matter of existence is exactly the HCl that still contains trace from the tail gas that secondary exhaust gas washing tower cat head blow-down pipe is discharged, and as not taking measures it is further washed absorption, certainly will affect greatly surrounding enviroment.
The utility model content
The goal of the invention of the utility model is: to the problem of above-mentioned existence; Provide a kind of simple in structure; Easy and simple to handle; And can solve the fluid-tight problem of waste gas and raffinate eluting column in the polysilicon production process and further absorb the pernicious gas in the eluting column discharging tail gas, as solving the exceed standard safe liquid seal can of problem of hydrogen chloride content.
The technical scheme that the utility model adopts is following:
The safe liquid seal can of the utility model; Comprise tank body; The top of said tank body is connected with discharging tail gas inlet tube, cleaning solution atomizer and the outlet of discharging tail gas; Said discharging tail gas inlet tube is connected on the exhaust gas washing tower, is connected with overflow pipe on the said tank base side, and this overflow pipe is connected to geosyncline.
Owing to adopted said structure, this safe liquid seal can in use, secondary exhaust gas washing tower discharging tail gas; Get into safe liquid seal can through pipeline by discharging tail gas inlet tube, behind the bubble cleaning, non-solubility gas and micro-HCL overflow the water surface; The cleaning solution washing of spraying through the cleaning solution atomizer again, further remove HCL gas after, clean waste gas is discharged by the outlet of discharging tail gas; The cleaning solution that gets into safe liquid seal can is discharged by overflow pipe, gets into cleaning solution and collects geosyncline, recycles.This safe liquid seal can possesses the double action of bubble cleaning and drip washing simultaneously; Strengthened clean result; Thereby can solve the fluid-tight problem of waste gas and raffinate eluting column in the polysilicon production process, further absorb the pernicious gas in the eluting column discharging tail gas, as solving the hydrogen chloride content problem that exceeds standard.
The safe liquid seal can of the utility model, the sides of said tank body is provided with cleaning eye.
Owing to adopted said structure, can pass through this cleaning eye, the material that the inner bottom part of tank body is piled up is cleared up, thereby guaranteed that tank body is interior clean, guarantees that its fluid-tight is respond well.
The safe liquid seal can of the utility model, the adjustable height of said this overflow pipe.
Owing to adopted said structure, can change the height of tank interior fluid-tight through the height that changes overflow pipe, thereby exhaust gas washing tower has been played effective fluid-tight effect, satisfy the requirement of different process, applied widely.
In sum, owing to adopted technique scheme, the beneficial effect of the utility model is:
1. the safe liquid seal can of the utility model, simple in structure, easy and simple to handle, the scope of application is wide, and is with low cost, is easy to apply;
2. the safe liquid seal can of the utility model can solve the fluid-tight problem of waste gas and raffinate eluting column in the polysilicon production process, and further absorb the pernicious gas in the eluting column discharging tail gas, as solving the hydrogen chloride content problem that exceeds standard;
3. the safe liquid seal can of the utility model possesses the double action of bubble cleaning and drip washing simultaneously, has strengthened clean result.
Description of drawings
Fig. 1 is the annexation figure of the safe liquid seal can of the utility model.
Mark among the figure: 1-discharging tail gas inlet tube, 2-cleaning solution atomizer, the outlet of 3-discharging tail gas, 4-tank body, 5-cleaning eye, 6-overflow pipe, 7-geosyncline.
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, the safe liquid seal can of the utility model comprises tank body 4; The top of said tank body 4 is connected with discharging tail gas inlet tube 1, cleaning solution atomizer 2 and discharging tail gas outlet 3; Said discharging tail gas inlet tube 1 is connected on the exhaust gas washing tower, is connected with overflow pipe 6, the adjustable height of said this overflow pipe 6 on said tank body 4 sides; This overflow pipe 6 is connected to geosyncline 7, and the sides of said tank body 4 is provided with cleaning eye 5.
The safe liquid seal can of the utility model; In use, secondary exhaust gas washing tower discharging tail gas gets into safe liquid seal can through pipeline by discharging tail gas inlet tube 1, behind the bubble cleaning; Non-solubility gas and micro-HCL overflow the water surface; The cleaning solution washing of spraying through cleaning solution atomizer 2 again, further remove HCL gas after, clean waste gas is discharged by discharging tail gas outlet 3.The cleaning solution that gets into safe liquid seal can is discharged by overflow pipe 6, gets into cleaning solution and collects geosyncline, recycles.
The safe liquid seal can of the utility model, simple in structure, easy and simple to handle, the scope of application is wide, and is with low cost, is easy to apply; Can solve the fluid-tight problem of waste gas and raffinate eluting column in the polysilicon production process, and further absorb the pernicious gas in the eluting column discharging tail gas, as solving the hydrogen chloride content problem that exceeds standard; Possess the double action of bubble cleaning and drip washing simultaneously, strengthened clean result.
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 (3)
1. safe liquid seal can; It is characterized in that: it comprises tank body (4); The top of said tank body (4) is connected with discharging tail gas inlet tube (1), cleaning solution atomizer (2) and discharging tail gas outlet (3); Said discharging tail gas inlet tube (1) is connected on the exhaust gas washing tower, is connected with overflow pipe (6) on said tank body (4) sides, and this overflow pipe (6) is connected to geosyncline (7).
2. safe liquid seal can as claimed in claim 1 is characterized in that: the sides of said tank body (4) is provided with cleaning eye (5).
3. according to claim 1 or claim 2 safe liquid seal can is characterized in that: the adjustable height of said this overflow pipe (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120338420 CN202237756U (en) | 2011-09-09 | 2011-09-09 | Safe liquid seal tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120338420 CN202237756U (en) | 2011-09-09 | 2011-09-09 | Safe liquid seal tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202237756U true CN202237756U (en) | 2012-05-30 |
Family
ID=46099061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120338420 Expired - Fee Related CN202237756U (en) | 2011-09-09 | 2011-09-09 | Safe liquid seal tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202237756U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107126838A (en) * | 2017-07-01 | 2017-09-05 | 成都国化环保科技有限公司 | A kind of flue gas desulfurization device line |
| CN107126840A (en) * | 2017-07-01 | 2017-09-05 | 成都国化环保科技有限公司 | A kind of flue gas desulfurization and denitrification equipment line |
| CN107224846A (en) * | 2017-07-12 | 2017-10-03 | 安徽弘源化工科技有限公司 | A kind of air-flow buffer type liquid seal can |
-
2011
- 2011-09-09 CN CN 201120338420 patent/CN202237756U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107126838A (en) * | 2017-07-01 | 2017-09-05 | 成都国化环保科技有限公司 | A kind of flue gas desulfurization device line |
| CN107126840A (en) * | 2017-07-01 | 2017-09-05 | 成都国化环保科技有限公司 | A kind of flue gas desulfurization and denitrification equipment line |
| CN107126840B (en) * | 2017-07-01 | 2023-08-04 | 成都国化环保科技有限公司 | Flue gas desulfurization denitration equipment line |
| CN107224846A (en) * | 2017-07-12 | 2017-10-03 | 安徽弘源化工科技有限公司 | A kind of air-flow buffer type liquid seal can |
| CN107224846B (en) * | 2017-07-12 | 2024-02-06 | 安徽弘源化工科技股份有限公司 | Air flow buffer type liquid seal tank |
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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: 20120530 Termination date: 20140909 |
|
| EXPY | Termination of patent right or utility model |