CN202683059U - Acid-base waste gas treatment system for field of recycling etching liquid - Google Patents
Acid-base waste gas treatment system for field of recycling etching liquid Download PDFInfo
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- CN202683059U CN202683059U CN 201220423379 CN201220423379U CN202683059U CN 202683059 U CN202683059 U CN 202683059U CN 201220423379 CN201220423379 CN 201220423379 CN 201220423379 U CN201220423379 U CN 201220423379U CN 202683059 U CN202683059 U CN 202683059U
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Abstract
The utility model discloses an acid-base waste gas treatment system for the field of recycling etching liquid. The acid-base waste gas treatment system comprises a dust remover and an absorption tower connected with the dust remover. The absorption tower is connected with a fan, the fan is connected with a chimney, a rain shielding cap is positioned above the chimney, a gap is reserved between the rain shielding cap and the top end of the chimney, and the area of the rain shielding cap is larger than that of an end face of the chimney. The acid-base liquid waste gas treatment system is low in price and simple and convenient in principle, treated liquid medicine can be recycled, operation water using amount is saved, gas circulation amount can be improved through the fan, potential of hydrogen of gas can be freely measured, and the acid-base waste gas treatment system is easy to adjust and avoids pollution on the air.
Description
Technical field
The utility model relates to treatment system, especially relates to the soda acid exhaust treatment system that reclaims the field for etching solution, belongs to the vent gas treatment field.
Background technology
The typical process of printed circuit board (pcb) processing adopts " graphic plating method ".Namely then elder generation's (being the visuals of circuit) preplating one deck slicker solder resist layer on the outer Copper Foil part that needs to keep of plate erodes remaining Copper Foil with chemical mode, is called etching.The PCB etching is divided into alkalescence and two kinds of acidity, and one is hydrochloric acid hydrogen peroxide system (acidity); Two is ammonium chloride ammoniacal liquor system (alkalescence).Alkaline etching liquid mainly is applicable to graphic plating metal resist layer, such as plated with gold, nickel, leypewter, the etching of the printed board of tin-nickel alloy and tin, its characteristics are that etch-rate is fast, and lateral erosion is little, molten copper ability is high, etch-rate is easily controlled, and in the printed circuit board production process, etching is a very important technical process, needing to use a large amount of etching solutions, therefore also is an operation that produces the severe contamination source.Traditional governance approach is: specify the company that qualification is arranged to reclaim by environmental administration, adopt simple way, wherein contained copper is processed into copper sulphate, then process slightly discharging.This significant wastage that has not only caused resource is (in every kilolitre alkaline etching liquid except cupric, also have the ammonium chloride more than 240 kilograms, about 30 kilograms the chemical substances such as liquefied ammonia), and waste liquid does not obtain real radical cure, has therefore formed the transfer of pollution sources.The numerous domestic colleague has formed present domestic main flow governance approach through improving, i.e. solvent extraction electrolysis and membrane electrolysis treatment process.The method recycles online with the former etching waste liquor that needs discharging or otherwise processed is closed circuit, has realized recycling of part material, but and electrolysis output tough cathode, copper recovery reaches 95%.Because etching solution all is to be acid or alkaline, under high temperature or other reasons, easily produce the volatilization phenomenon in the time of liquid, the sour gas that volatilizes or alkaline gas all are poisonous, and human body is worked the mischief, and have also caused environmental pollution.
The utility model content
The purpose of this utility model is to overcome the shortcoming and defect of above-mentioned prior art, be provided for the soda acid exhaust treatment system that etching solution reclaims the field, this soda acid exhaust treatment system low price, principle is easy, and the liquid after the processing can recycle, and saves the operation water consumption, improved the circulation of gas by blower fan, can freely detect the pH-value of gas, easily adjust, avoid the pollution to air.
The purpose of this utility model is achieved through the following technical solutions: be used for the soda acid exhaust treatment system that etching solution reclaims the field, comprise deduster and the absorption tower that is connected with deduster, described absorption tower is connected with blower fan, blower fan is connected with chimney, the chimney top is provided with the cap that keeps off the rain, the keep off the rain top of cap and chimney is provided with the gap, and the area of the cap that keeps off the rain is greater than the face area of chimney.
Further, inside, described absorption tower is provided with acid absorbing cavity and the alkaline annular seal space that is made of respectively sealing the dividing plate isolation, and acid annular seal space is arranged on the top of alkaline annular seal space, acid annular seal space is communicated with by breather pipe and alkaline annular seal space, and described breather pipe one end is connected with the bottom of acid annular seal space, and the other end is connected with the top of alkaline annular seal space.
Further, described breather pipe is provided with acid arrangement for detecting near the inside, termination of alkaline annular seal space, be provided with the alkaline medicine adding set that is communicated with alkaline annular seal space on the outer wall of alkaline annular seal space, and alkaline medicine adding set is connected with acid arrangement for detecting.
Further, the inside, top of described acid annular seal space is provided with alkaline arrangement for detecting, be provided with the acid medicine adding set that is communicated with acid annular seal space on the outer wall of acid annular seal space, and acid medicine adding set is connected with alkaline arrangement for detecting.
Further, described blower fan is communicated with by airduct with the top of acid annular seal space, and alkaline arrangement for detecting is arranged on airduct near the end inside of acid annular seal space.
Further, described deduster is communicated with alkaline annular seal space by air inlet pipe.
In sum, the beneficial effects of the utility model are: this soda acid exhaust treatment system low price, principle is easy, liquid after the processing can recycle, save the operation water consumption, improved the circulation of gas by blower fan, can freely detect the pH-value of gas, easily adjust, avoided the pollution to air.
Description of drawings
Fig. 1 is schematic diagram of the present utility model.
Mark and corresponding parts title in the accompanying drawing: 1-deduster; 2-air inlet pipe; 3-alkaline annular seal space; 4-blower fan; 5-chimney; 6-cap keeps off the rain; 7-airduct; 8-alkaline arrangement for detecting; 9-acid medicine adding set; 10-acid annular seal space; 11-breather pipe; 12-acid arrangement for detecting; 13-alkaline medicine adding set.
The specific embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but embodiment of the present utility model is not limited only to this.
Embodiment:
As shown in Figure 1, be used for the soda acid exhaust treatment system that etching solution reclaims the field, comprise deduster 1 and the absorption tower that is connected with deduster 1, described absorption tower is connected with blower fan 4, blower fan 4 is connected with chimney 5, chimney 5 tops are provided with the cap 6 that keeps off the rain, and the top of keep off the rain cap 6 and chimney 5 is provided with the gap, and the area of the cap 6 that keeps off the rain is greater than the face area of chimney 5.Gas is in the process of carrying, after will dust wherein removing by deduster 1, be passed in the absorption tower and absorb, after gas become neutrality, be discharged in the atmosphere by chimney 5, the circulation of gas in the blower fan 4 increasing systems is so that it is faster to absorb the speed of processing again, the cap 6 of keeping off the rain is used for stopping that rainwater etc. enters into chimney 5, guarantees the stable of air-flow in the chimney 5.
Inside, described absorption tower is provided with acid absorbing cavity 10 and the alkaline annular seal space 3 that is made of respectively sealing the dividing plate isolation, and acid annular seal space 10 is arranged on the top of alkaline annular seal space 3, acid annular seal space 10 is communicated with by breather pipe 11 and alkaline annular seal space 3, and described breather pipe 11 1 ends are connected with the bottom of acid annular seal space 10, and the other end is connected with the top of alkaline annular seal space 3.
Described breather pipe 11 is provided with acid arrangement for detecting 12 near the inside, termination of alkaline annular seal space 3, be provided with the alkaline medicine adding set 13 that is communicated with alkaline annular seal space 3 on the outer wall of alkalescence annular seal space 3, and alkaline medicine adding set 13 is connected with acid arrangement for detecting 12.By the gas after the dedusting in alkaline annular seal space 3 interior absorptions, after acid ingredient is absorbed by alkaline solution, after acid arrangement for detecting 12 detects gas and is acidity, show the alkalescence of solution in the alkaline annular seal space 3 not, add alkaline medicine by alkaline medicine adding set 13, improve the efficient of processing.
The inside, top of described acid annular seal space 10 is provided with alkaline arrangement for detecting 8, is provided with the acid medicine adding set 9 that is communicated with acid annular seal space 10 on the outer wall of acid annular seal space 10, and acid medicine adding set 9 is connected with alkaline arrangement for detecting 8.Gas through 3 absorptions of parlkaline annular seal space, after entering and exiting acid annular seal space, absorb by acid solution, when detecting gas, alkaline arrangement for detecting 8 is alkalescence, the acidity of solution in the acid annular seal space 10 is described not, add acid medicine by acid medicine adding set 9, increase the acidity of solution.
Described blower fan 4 is communicated with by airduct 7 with the top of acid annular seal space 10, and alkaline arrangement for detecting 8 is arranged on airduct 7 near the end inside of acid annular seal space 10.
Described deduster 1 is communicated with alkaline annular seal space 3 by air inlet pipe 2.By deduster 1 dust in the gas is removed, avoided the medicine pollution in the absorption tower.
Through the absorption of two layers of solution so that the acid-base value of gas is tending towards neutral, be discharged in the atmosphere after, can not pollute air, meet environmental requirement.
Take aforesaid way, just can realize preferably the utility model.
Claims (6)
1. be used for the soda acid exhaust treatment system that etching solution reclaims the field, it is characterized in that: comprise deduster (1) and the absorption tower that is connected with deduster (1), described absorption tower is connected with blower fan (4), blower fan (4) is connected with chimney (5), chimney (5) top is provided with the cap that keeps off the rain (6), the keep off the rain top of cap (6) and chimney (5) is provided with the gap, and the area of the cap that keeps off the rain (6) is greater than the face area of chimney (5).
2. the soda acid exhaust treatment system that reclaims the field for etching solution according to claim 1, it is characterized in that: inside, described absorption tower is provided with acid absorbing cavity (10) and the alkaline annular seal space (3) that is made of respectively sealing the dividing plate isolation, and acid annular seal space (10) is arranged on the top of alkaline annular seal space (3), acid annular seal space (10) is communicated with by breather pipe (11) and alkaline annular seal space (3), and described breather pipe (11) one ends are connected with the bottom of acid annular seal space (10), and the other end is connected with the top of alkaline annular seal space (3).
3. the soda acid exhaust treatment system that reclaims the field for etching solution according to claim 2, it is characterized in that: described breather pipe (11) is provided with acid arrangement for detecting (12) near the inside, termination of alkaline annular seal space (3), be provided with the alkaline medicine adding set (13) that is communicated with alkaline annular seal space (3) on the outer wall of alkalescence annular seal space (3), and alkaline medicine adding set (13) is connected with acid arrangement for detecting (12).
4. the soda acid exhaust treatment system that reclaims the field for etching solution according to claim 2, it is characterized in that: the inside, top of described acid annular seal space (10) is provided with alkaline arrangement for detecting (8), be provided with the acid medicine adding set (9) that is communicated with acid annular seal space (10) on the outer wall of acid annular seal space (10), and acid medicine adding set (9) is connected with alkaline arrangement for detecting (8).
5. the soda acid exhaust treatment system that reclaims the field for etching solution according to claim 4, it is characterized in that: described blower fan (4) is communicated with by airduct (7) with the top of acid annular seal space (10), and alkaline arrangement for detecting (8) is arranged on airduct (7) near the end inside of acid annular seal space (10).
6. the soda acid exhaust treatment system that reclaims the field for etching solution according to claim 5, it is characterized in that: described deduster (1) is communicated with alkaline annular seal space (3) by air inlet pipe (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220423379 CN202683059U (en) | 2012-08-24 | 2012-08-24 | Acid-base waste gas treatment system for field of recycling etching liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220423379 CN202683059U (en) | 2012-08-24 | 2012-08-24 | Acid-base waste gas treatment system for field of recycling etching liquid |
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| Publication Number | Publication Date |
|---|---|
| CN202683059U true CN202683059U (en) | 2013-01-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220423379 Expired - Fee Related CN202683059U (en) | 2012-08-24 | 2012-08-24 | Acid-base waste gas treatment system for field of recycling etching liquid |
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| CN (1) | CN202683059U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103623684A (en) * | 2012-08-24 | 2014-03-12 | 成都虹华环保科技有限公司 | Acid-base waste gas treatment system for etching liquid recycling field |
| WO2015135230A1 (en) * | 2014-03-12 | 2015-09-17 | 深圳市华星光电技术有限公司 | Etching solution concentration measurement apparatus and method |
-
2012
- 2012-08-24 CN CN 201220423379 patent/CN202683059U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103623684A (en) * | 2012-08-24 | 2014-03-12 | 成都虹华环保科技有限公司 | Acid-base waste gas treatment system for etching liquid recycling field |
| WO2015135230A1 (en) * | 2014-03-12 | 2015-09-17 | 深圳市华星光电技术有限公司 | Etching solution concentration measurement apparatus and method |
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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 |
Owner name: CHENGDU HONGHUA ENVIRONMENTAL PROTECTION TECHNOLOG Free format text: FORMER NAME: CHENGDU HONGHUA ENVIRONMENTAL PROTECTION SCIENCE AND TECHNOLOGY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 610000 Chengdu province high tech Zone, West core road, No. 4, No. Patentee after: Chengdu Honghua Environmental Protection Technology Co., Ltd. Address before: 610000 Chengdu province high tech Zone, West core road, No. 4, No. Patentee before: Chengdu Honghua Environmental Protection Technology Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130123 Termination date: 20200824 |