CN204996315U - Waste gas recovery device of silicon material pickling machine - Google Patents
Waste gas recovery device of silicon material pickling machine Download PDFInfo
- Publication number
- CN204996315U CN204996315U CN201520533628.8U CN201520533628U CN204996315U CN 204996315 U CN204996315 U CN 204996315U CN 201520533628 U CN201520533628 U CN 201520533628U CN 204996315 U CN204996315 U CN 204996315U
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- Prior art keywords
- reactive tank
- waste gas
- reaction
- silicon material
- pickling machine
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- Silicon Compounds (AREA)
Abstract
The utility model relates to a photovoltaic technology field, concretely relates to waste gas recovery device of silicon material pickling machine. The utility model provides a waste gas recovery device of silicon material pickling machine, the initial response groove of first exhaust pipe is equipped with including the top surface, first exhaust pipe is connected at the first air -supply line of second reaction lateral wall with the setting, the top surface of second reaction is equipped with the inlet tube, the second exhaust pipe that second reaction side set up is connected with the third response groove that the top surface was equipped with the second air -supply line, the top surface and the length of the third exhaust pipe break -over fourth reaction of third response groove lateral wall setting are greater than 12 of fourth reaction height, the fourth reaction is connected with the bottom surface of second reaction through arranging the acid tube, the lateral wall and the bottom surface of fourth reaction are equipped with the fourth exhaust pipe respectively and arrange sour mouthful. The utility model discloses can effectively reduce waste gas the output, carry out effectual recycle, realize the recycle of rare nitric acid and reduce atmospheric pollution waste gas.
Description
Technical field
The utility model relates to field of photovoltaic technology, is specifically related to a kind of waste gas recovering device of silicon material pickling machine.
Background technology
In existing photovoltaic industry, a very important job to the cleaning of silicon material, its objective is and silicon material surface cleaning free from admixture is polluted, according to the difference using corrosive liquid, be divided into pickling and alkali cleaning two kinds, pickling is in large-scale production, the mixed liquor of general employing hydrofluoric acid and nitric acid, in cleaning silicon material process, there will be a large amount of yellow smogs, main component is nitrogen oxide, as nitric oxide, nitrogen dioxide, the amount of nitrogen dioxide accounts for more than 90%, because these gases have great injury to human body, therefore in subsequent treatment according to the difference of each producer's situation, the carrying out had exhaust-gas treatment, what have is then directly discharged in air, certain pollution is caused to air.
Chinese patent 202538505U discloses a kind of silicon material and soaks hypo acid filtering recovering device, comprise pickling tube (1), its spy is, described pickling tube (1) entrance point is provided with filtering baffle net (2), pickling tube (1) outlet connects the sour pond of storage (6), store up sour pond (6) entrance point and be provided with filter basket (3), the sour pond of described storage (6) outlet connects pump (7).This patent structure is unreasonable, and the effect of recovery is bad.
Utility model content
In order to overcome defect of the prior art, the utility model provides the waste gas produced in silicon material acid cleaning process and carries out recovery conversion, for the purpose of re-using.
The utility model is achieved by the following technical solution a kind of waste gas recovering device of silicon material pickling machine, described waste gas recovering device comprises the first reactive tank that end face is provided with first row airduct, described first row airduct is connected with the first blast pipe being arranged on the second reactive tank sidewall, the end face of described second reactive tank is provided with water inlet pipe, the second row airduct that described second reactive tank side is arranged is connected with the 3rd reactive tank that end face is provided with the second blast pipe, described 3rd reactive tank sidewall arrange the 3rd exhaust duct break-through the 4th reactive tank end face and length is greater than 1/2 of described 4th reactive tank height, described 4th reactive tank is connected by the bottom surface of ACID with the second reactive tank, sidewall and the bottom surface of described 4th reactive tank are respectively equipped with the 4th exhaust duct and acid discharge mouth.
Further, described first blast pipe is connected with the wireway being arranged on the second reactive tank inner chamber.
Further, the bottom surface of described wireway and the second reactive tank is provided with angle.
Further, described angle is greater than 150 °.
Further, described second row airduct is arranged on the position of the second reactive tank side higher than 1/2 of the second reactive tank height.
Further, described 3rd exhaust duct is arranged on the middle and lower part of the 3rd reactive tank sidewall.
Further, described 4th exhaust duct is arranged on the sidewall middle and upper part of the 4th reactive tank.
Compared with prior art, superior effect is: the utility model, by pickling machine improvement opportunity scheme, effectively reduces the discharge rate of waste gas, carried out effective recycling simultaneously to waste gas, achieve the recycling to dust technology, reduce the pollution to air simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of the waste gas recovering device of silicon material pickling machine described in the utility model.
Reference numeral is as follows:
1-first reactive tank, 2-first row airduct, 3-first blast pipe, 4-second reactive tank, 5-water inlet pipe, 6-second row airduct, 7-the 3rd reactive tank, 8-second blast pipe, 9-the 3rd exhaust duct, 10-the 4th reactive tank, 11-the 4th exhaust duct, 12-ACID, 13-wireway, 14-acid discharge mouth.
In figure, the direction of arrow is gas flow direction.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model detailed description of the invention is described in further detail.
As shown in Figure 1, illustrate the waste gas recovering device that the utility model provides a kind of silicon material pickling machine, comprise the first reactive tank 1 that end face is provided with first row airduct 2, described first row airduct 2 is connected with the first blast pipe 3 being arranged on the second reactive tank 4 sidewall, the end face of described second reactive tank 4 is provided with water inlet pipe 5, the second row airduct 6 that described second reactive tank 4 side is arranged is connected with the 3rd reactive tank 7 that end face is provided with the second blast pipe 8, the end face of the 3rd exhaust duct 9 break-through the 4th reactive tank 10 that described 3rd reactive tank 7 sidewall is arranged and length is greater than 1/2 of described 4th reactive tank 10 height, described 4th reactive tank 10 is connected with the bottom surface of the second reactive tank 4 by ACID 12, sidewall and the bottom surface of described 4th reactive tank 10 are respectively equipped with the 4th exhaust duct 11 and acid discharge mouth 14, described first blast pipe 3 is connected with the wireway 13 being arranged on the second reactive tank 4 inner chamber, the bottom surface of described wireway 13 and the second reactive tank 4 is provided with angle, described angle is greater than 150 °, described second row airduct 6 is arranged on the position of the second reactive tank 4 side higher than 1/2 of the second reactive tank 4 height, described 3rd exhaust duct 9 is arranged on the middle and lower part of the 3rd reactive tank 7 sidewall, described 4th exhaust duct 11 is arranged on the sidewall middle and upper part of the 4th reactive tank 10.
The utility model additionally provides a kind of gas recovery method of silicon material pickling machine, and described gas recovery method comprises the following steps:
Step 1) in the first reactive tank 1 working concentration be 65-68% dust technology to silicon material cleaning, generation main component is NO
2nO
xtobacco gas;
Step 2) step 1) in produce main component be NO
2nO
xtobacco gas, by first row airduct 2 by described NO
xtobacco gas is transported to the second reactive tank 4, absorbs in the deionized water passed in advance (DI water), and 4NO occurs
2↑+O
2↑+2H
2o=4HNO
3reaction, form dilute nitric acid solution, described dilute nitric acid solution is passed in the 4th reactive tank 10;
Step 3) step 2) in unabsorbed containing NO and NO
2gas, be transported in the 3rd reactive tank 7 by second row airduct 6, described 3rd reactive tank 7 controls the air inflow of air by the second blast pipe 8, makes the pressure in the 3rd reactive tank 7 remain on 1MPa, makes the oxygen in air and NO carry out sufficient NO+O
2=NO
2reaction, generates NO by after reaction
2gas is passed in the dust technology of the 4th reactive tank 10 and absorbs, and forms the dust technology that concentration is about 65%-67%;
Step 4) gas carrying out reclaiming in the 4th reactive tank 10 is discharged, NO in described gas
xcontent is about 180ppm.
The utility model is not limited to above-mentioned embodiment, and when not deviating from flesh and blood of the present utility model, any distortion that it may occur to persons skilled in the art that, improvement, replacement all fall into protection domain of the present utility model.
Claims (7)
1. the waste gas recovering device of a silicon material pickling machine, it is characterized in that, described waste gas recovering device comprises the first reactive tank (1) that end face is provided with first row airduct (2), described first row airduct (2) is connected with the first blast pipe (3) being arranged on the second reactive tank (4) sidewall, the end face of described second reactive tank (4) is provided with water inlet pipe (5), the second row airduct (6) that described second reactive tank (4) side is arranged is connected with the 3rd reactive tank (7) that end face is provided with the second blast pipe (8), the end face of the 3rd exhaust duct (9) break-through the 4th reactive tank (10) that described 3rd reactive tank (7) sidewall is arranged and length is greater than 1/2 of described 4th reactive tank (10) height, described 4th reactive tank (10) is connected by the bottom surface of ACID (12) with the second reactive tank (4), sidewall and the bottom surface of described 4th reactive tank (10) are respectively equipped with the 4th exhaust duct (11) and acid discharge mouth (14).
2. the waste gas recovering device of silicon material pickling machine according to claim 1, it is characterized in that, described first blast pipe (3) is connected with the wireway (13) being arranged on the second reactive tank (4) inner chamber.
3. the waste gas recovering device of silicon material pickling machine according to claim 2, is characterized in that, described wireway (13) is provided with angle with the bottom surface of the second reactive tank (4).
4. the waste gas recovering device of silicon material pickling machine according to claim 3, it is characterized in that, described angle is greater than 150 °.
5. the waste gas recovering device of silicon material pickling machine according to claim 1, is characterized in that, described second row airduct (6) is arranged on the position of the second reactive tank (4) side higher than 1/2 of the second reactive tank (4) height.
6. the waste gas recovering device of silicon material pickling machine according to claim 1, it is characterized in that, described 3rd exhaust duct (9) is arranged on the middle and lower part of the 3rd reactive tank (7) sidewall.
7. the waste gas recovering device of silicon material pickling machine according to claim 1, it is characterized in that, described 4th exhaust duct (11) is arranged on the sidewall middle and upper part of the 4th reactive tank (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520533628.8U CN204996315U (en) | 2015-07-22 | 2015-07-22 | Waste gas recovery device of silicon material pickling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520533628.8U CN204996315U (en) | 2015-07-22 | 2015-07-22 | Waste gas recovery device of silicon material pickling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204996315U true CN204996315U (en) | 2016-01-27 |
Family
ID=55153221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520533628.8U Expired - Fee Related CN204996315U (en) | 2015-07-22 | 2015-07-22 | Waste gas recovery device of silicon material pickling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204996315U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104984654A (en) * | 2015-07-22 | 2015-10-21 | 光为绿色新能源股份有限公司 | Exhaust gas recovery device for silicon material pickling machine, and exhaust gas recovery method for silicon material pickling machine |
| CN108950690A (en) * | 2017-05-19 | 2018-12-07 | 浙江昱辉阳光能源有限公司 | A kind of silicon material recycling acid washing method and device |
-
2015
- 2015-07-22 CN CN201520533628.8U patent/CN204996315U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104984654A (en) * | 2015-07-22 | 2015-10-21 | 光为绿色新能源股份有限公司 | Exhaust gas recovery device for silicon material pickling machine, and exhaust gas recovery method for silicon material pickling machine |
| CN108950690A (en) * | 2017-05-19 | 2018-12-07 | 浙江昱辉阳光能源有限公司 | A kind of silicon material recycling acid washing method and device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 074000 No. 66 Dongfang Road, new industrial park, Hebei, Gaobeidian Patentee after: Guangwei Green Energy Technology Co.,Ltd. Address before: 074000 No. 66 Dongfang Road, new industrial park, Hebei, Gaobeidian Patentee before: Lightway Green New Energy Co.,Ltd. |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160712 Address after: 071000, Baoding City, Hebei province Gaobeidian City Road on the north side of the west side of prosperous street Patentee after: BAODING LIGHTWAY GREEN ENERGY TECHNOLOGY CO.,LTD. Address before: 074000 No. 66 Dongfang Road, new industrial park, Hebei, Gaobeidian Patentee before: Guangwei Green Energy Technology Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160127 Termination date: 20210722 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |