CN103585872A - Purifier for automatically replacing alkali lye - Google Patents
Purifier for automatically replacing alkali lye Download PDFInfo
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- CN103585872A CN103585872A CN201310519919.7A CN201310519919A CN103585872A CN 103585872 A CN103585872 A CN 103585872A CN 201310519919 A CN201310519919 A CN 201310519919A CN 103585872 A CN103585872 A CN 103585872A
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- alkali lye
- tank
- clarifier
- purifier
- lye
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Abstract
The invention relates to a purifier for automatically replacing alkali lye. The purifier comprises suction fans, suction ducts, an exhaust duct, a purifying tank, a heater and stirrers. The suction ducts are connected with the suction fans. One end of each exhaust duct is connected with a corresponding suction fan, and the other end of the exhaust duct extends into the purifying tank which is filled with alkali lye. The heater is connected on the bottom of the purifying tank. The stirrers are installed at two sides of the purifying tank and are positioned inside the alkali lye. A tap hole is arranged on the bottom of the purifying tank. A switch is disposed at the tap hole. The purifying tank is connected to an alkali lye tank through an alkali lye input pipe. An alkali lye pump is connected on the alkali lye input pipe. A pH value tester is installed on the bottom of the purifying tank. The pH value tester is connected with a controller which is connected with the alkali lye pump. The switch is connected with the controller. The purifier provided by the invention can replace alkali lye automatically. Thus, defects such as incomplete absorption of sulfuric acid and hydrogen chloride exhaust gases and wasting of alkali lye, which are caused by manual replacement of alkali lye are overcome effectively.
Description
Technical field
The present invention relates to a kind of purifier, relate in particular to a kind of used for printed circuit board purifier.
Background technology
Printed circuit board industry belongs to environment heavy polluted industry, how to curb environmental pollution is the important topic of printed circuit board industry, reduce the pollution to environment, just must set about from its toxic emission, in the technique of printed circuit board, heavy copper, plating, etching work procedure sulfuric acid and hydrogen chloride emission, for the processing of these waste gas, toward high-altitude in the past, be directly discharged in atmosphere, like this atmosphere has been caused to great pollution, do not meet the aim of recycling, wasted a large amount of resources simultaneously yet.High altitude discharge is normally discharged to the waste gas in workshop in atmosphere by pipeline by air exhauster, such processing mode, make to have filled the air in workshop a large amount of sulfuric acid and hydrogen chloride emission, produced unpleasant sharp aroma, workman works for a long time in such environment, can cause very large injury to health, particularly employee's bronchus, the heart, lung be caused to very large injury.
Granted publication number is CN202942804U, and Granted publication day is that the Chinese utility model patent on May 22nd, 2013 discloses a kind of air cleaning unit, comprising: exhausting pumping and be loaded with the alkaline solution pond of alkaline solution; The pump-line of described exhausting pumping is connected to production line, for extracting the sour gas producing on production line; The discharge duct of exhausting pumping is connected in alkaline solution pond, and described alkaline solution pond is provided with gas discharge pipe.The utility model embodiment adopts exhausting pumping that the waste gas producing on production line is pumped into alkaline solution pond to carry out neutralization reaction, finally discharge pollution-free gas, therefore, greatly improved the operating environment on production line, promote workshop air quality, reduced ill probability of the line operative employee.
But this utility model is when alkaline solution is saturated, can not automatically change alkaline solution, operator's self energy is manually changed alkali lye according to the experience of oneself, change alkali lye and just must emit alkali lye from alkaline solution pond, changing alkali lye during this period of time, due to the disappearance of alkali lye, the sulfuric acid and the hydrogen chloride emission that are discharged in alkaline solution pond can not effectively be reclaimed, directly be discharged in atmosphere, atmosphere is caused to certain pollution; Because operator determines whether to change alkali lye according to the experience of oneself, probably cause alkali lye or just do not utilized and discharged, cause the waste of alkali lye, alkali lye is crossed absorption, alkali lye does not play the effect of reclaim sulfuric acid and hydrogen chloride emission at all, directly be discharged in atmosphere, cause the pollution of atmosphere.
Summary of the invention
In order to overcome purifier, can not automatically change alkali lye and the sulfuric acid causing and the defect that hydrogen chloride emission absorbs not thoroughly, alkali lye is wasted, the present invention aims to provide a kind of purifier of automatically replaceable alkali lye, this purifier, the automatic alkali lye of changing, has effectively overcome the sulfuric acid and the hydrogen chloride emission that due to artificial replacing alkali lye, cause and has absorbed defect thorough, waste alkali lye.
Automatically change the purifier of alkali lye, it is characterized in that: comprise air exhauster, air draft pipe, exhaust duct, clarifier-tank, heater and agitator, described air draft pipe is connected on air exhauster, described exhaust duct one end is connected on air exhauster, the other end stretches in clarifier-tank, in described clarifier-tank, alkali lye is housed, described heater is connected to the bottom of clarifier-tank, described agitator is arranged on the both sides of clarifier-tank, and be arranged in alkali lye, described clarifier-tank bottom is provided with tap hole, tap hole place is provided with switch, described clarifier-tank is connected with alkali lye pond by alkali lye input channel, on alkali lye input pipe, be connected with lye pump, described clarifier-tank bottom is provided with Ph value tester, described Ph value tester is connected with controller, described controller is connected with lye pump, described switch is connected with controller.
The exhaust outlet of described exhaust duct is perpendicular to alkali lye liquid level, and at a distance of alkali lye liquid level 50mm～200mm.
Described clarifier-tank is also connected with suction pump, the water inlet of described suction pump is connected to the bottom of clarifier-tank by water inlet pipe, delivery port is connected with outlet pipe, described outlet pipe stretches in clarifier-tank and is positioned at the top of clarifier-tank, the outlet pipe that is arranged in clarifier-tank is parallel to alkali lye liquid level, be arranged on the outlet pipe of clarifier-tank and be evenly provided with hole for water spraying, on described hole for water spraying, filter screen is installed.
The present invention has the following advantages:
1, the present invention includes air exhauster, air draft pipe, exhaust duct, clarifier-tank, heater and agitator, described air draft pipe is connected on air exhauster, described exhaust duct one end is connected on air exhauster, the other end stretches in clarifier-tank, in described clarifier-tank, alkali lye is housed, described heater is connected to the bottom of clarifier-tank, and described agitator is arranged on the both sides of clarifier-tank, and is arranged in alkali lye.Air exhauster is drawn into the sulfuric acid in printed circuit board workshop and hydrogen chloride emission in clarifier-tank, alkali lye neutralisation of sulphuric acid and hydrogen chloride emission in clarifier-tank, change into salting liquid, then through some treatment process, just can obtain sodium sulphate or sodium chloride, to discarded, reuptake recycling, not only purified sulfuric acid and hydrogen chloride emission and obtained addition product simultaneously.Heater of the present invention is connected to the bottom of clarifier-tank, heater can add heat alkali liquid, improve the absorption efficiency of sulfuric acid and hydrogen chloride emission, agitator is arranged on the both sides of clarifier-tank can stir alkali lye, also can further improve the absorption efficiency of sulfuric acid and hydrogen chloride emission, removes in a large number sulfuric acid and hydrogen chloride emission in waste gas, reduce the pollution to ambient atmosphere, waste gas is after treatment discharged in atmosphere again, meets national discharge standard completely, the less pollution to atmosphere.Clarifier-tank bottom is provided with tap hole, tap hole place is provided with switch, described clarifier-tank is connected with alkali lye pond by alkali lye input channel, on alkali lye input pipe, be connected with lye pump, described clarifier-tank bottom is provided with Ph value tester, described Ph value tester is connected with controller, and described controller is connected with lye pump, and described switch is connected with controller.Ph value tester is measured the Ph value of alkali lye accurately, the Ph value that controller is measured alkali lye accurately according to Ph value tester is determined the switching of tap hole place switch and the startup of lye pump and closes, when the Ph of alkali lye value to require value time, controller gauge tap is opened and when emitting alkali lye, is controlled lye pump the alkali lye in alkali lye pond is extracted in clarifier-tank, complete the automatic replacing of alkali lye, when alkali lye Ph value is when requiring, controller gauge tap cuts out, and controls lye pump and closes.So just realized the automatic replacing of alkali lye, rather than changed alkali lye according to workman's experience, precise control, has effectively overcome the sulfuric acid and the hydrogen chloride emission that due to artificial replacing alkali lye, cause and has absorbed defect thorough, waste alkali lye.
2, the exhaust outlet of exhaust duct of the present invention is perpendicular to alkali lye liquid level, and at a distance of alkali lye liquid level 50mm～200mm, the exhaust outlet of wind pipeline is perpendicular to alkali lye liquid level, be conducive to the absorption of sulfuric acid and hydrogen chloride emission, at a distance of alkali lye liquid level 50mm～200mm, can effectively prevent that alkali lye from entering exhaust duct, causes the backflow of alkali lye.
3, clarifier-tank is also connected with suction pump, the water inlet of described suction pump is connected to the bottom of clarifier-tank by water inlet pipe, delivery port is connected with outlet pipe, described outlet pipe stretches in clarifier-tank and is positioned at the top of clarifier-tank, the outlet pipe that is arranged in clarifier-tank is parallel to alkali lye liquid level, be arranged on the outlet pipe of clarifier-tank and be evenly provided with hole for water spraying, on described hole for water spraying, filter screen is installed.Suction pump is extracted into alkali lye the top ejection of clarifier-tank, forms alkali lye water smoke, increases clarifier-tank and absorbs sulfuric acid and hydrogen chloride emission amount, has greatly improved the absorptivity of sulfuric acid and hydrogen chloride emission.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention;
Fig. 2 changes alkali lye principle control chart automatically.
Mark 1, air exhauster in figure, 2, air draft pipe, 3, exhaust duct, 4, clarifier-tank, 5, heater, 6, agitator, 7, suction pump, 8, water inlet pipe, 9, outlet pipe, 10, hole for water spraying, 11, controller, 12, switch, 13, lye pump, 14, Ph value tester.
The specific embodiment
The present invention includes air exhauster 1, air draft pipe 2, exhaust duct 3, clarifier-tank 4, heater 5 and agitator 6, described air draft pipe 2 is connected on air exhauster 1, described exhaust duct 3 one end are connected on air exhauster 1, the other end stretches in clarifier-tank 4, in described clarifier-tank 4, alkali lye is housed, described heater 5 is connected to the bottom of clarifier-tank 4, and described agitator 6 is arranged on the both sides of clarifier-tank 4, and is arranged in alkali lye.Air exhauster is drawn into the sulfuric acid in printed circuit board workshop and hydrogen chloride emission in clarifier-tank, alkali lye neutralisation of sulphuric acid and hydrogen chloride emission in clarifier-tank, change into salting liquid, then through some treatment process, just can obtain sodium sulphate or sodium chloride, to discarded, reuptake recycling, not only purified sulfuric acid and hydrogen chloride emission and obtained addition product simultaneously.Heater of the present invention is connected to the bottom of clarifier-tank, heater can add heat alkali liquid, improve the absorption efficiency of sulfuric acid and hydrogen chloride emission, agitator is arranged on the both sides of clarifier-tank can stir alkali lye, also can further improve the absorption efficiency of sulfuric acid and hydrogen chloride emission, removes in a large number sulfuric acid and hydrogen chloride emission in waste gas, reduce the pollution to ambient atmosphere, waste gas is after treatment discharged in atmosphere again, meets national discharge standard completely, the less pollution to atmosphere.Clarifier-tank bottom is provided with tap hole, tap hole place is provided with switch 12, described clarifier-tank 44 is connected with alkali lye pond by alkali lye input channel, on alkali lye input pipe, be connected with lye pump 13, described clarifier-tank 4 bottoms are provided with Ph value tester, described Ph value tester is connected with controller, and described controller is connected with lye pump, and described switch is connected with controller.Ph value tester is measured the Ph value of alkali lye accurately, the Ph value that controller is measured alkali lye accurately according to Ph value tester 14 is determined the switching of tap hole place switch 12 and the startup of lye pump 13 and closes, when the Ph of alkali lye value to require value time, controller gauge tap is opened and when emitting alkali lye, is controlled lye pump the alkali lye in alkali lye pond is extracted in clarifier-tank, complete the automatic replacing of alkali lye, when alkali lye Ph value is when requiring, controller gauge tap cuts out, and controls lye pump and closes.So just realized the automatic replacing of alkali lye, rather than changed alkali lye according to workman's experience, precise control, has effectively overcome the sulfuric acid and the hydrogen chloride emission that due to artificial replacing alkali lye, cause and has absorbed defect thorough, waste alkali lye.
The exhaust outlet of exhaust duct 3 of the present invention is perpendicular to alkali lye liquid level, and at a distance of alkali lye liquid level 50mm～200mm, the exhaust outlet of exhaust duct is perpendicular to alkali lye liquid level, be conducive to the absorption of sulfuric acid and hydrogen chloride emission, at a distance of alkali lye liquid level 50mm～200mm, can effectively prevent that alkali lye from entering exhaust duct, causes the backflow of alkali lye.
Clarifier-tank 4 is also connected with suction pump 7, the water inlet of described suction pump 7 is connected to the bottom of clarifier-tank 4 by water inlet pipe 8, delivery port is connected with outlet pipe 9, described outlet pipe 9 stretches in clarifier-tank 4 and is positioned at the top of clarifier-tank 4, the outlet pipe that is arranged in clarifier-tank 4 is parallel to alkali lye liquid level, be arranged on the outlet pipe of clarifier-tank 4 and be evenly provided with hole for water spraying 10, on described hole for water spraying 10, filter screen is installed.Suction pump is extracted into alkali lye the top ejection of clarifier-tank, forms alkali lye water smoke, increases clarifier-tank and absorbs sulfuric acid and hydrogen chloride emission amount, has greatly improved the absorptivity of sulfuric acid and hydrogen chloride emission.
Claims (3)
1. automatically change the purifier of alkali lye, it is characterized in that: comprise air exhauster, air draft pipe, exhaust duct, clarifier-tank, heater and agitator, described air draft pipe is connected on air exhauster, described exhaust duct one end is connected on air exhauster, the other end stretches in clarifier-tank, in described clarifier-tank, alkali lye is housed, described heater is connected to the bottom of clarifier-tank, described agitator is arranged on the both sides of clarifier-tank, and be arranged in alkali lye, described clarifier-tank bottom is provided with tap hole, tap hole place is provided with switch, described clarifier-tank is connected with alkali lye pond by alkali lye input channel, on alkali lye input pipe, be connected with lye pump, described clarifier-tank bottom is provided with Ph value tester, described Ph value tester is connected with controller, described controller is connected with lye pump, described switch is connected with controller.
2. the purifier of automatic replacing alkali lye according to claim 1, is characterized in that: the exhaust outlet of described exhaust duct is perpendicular to alkali lye liquid level, and at a distance of alkali lye liquid level 50mm～200mm.
3. the purifier of automatic replacing alkali lye according to claim 1 and 2, it is characterized in that: described clarifier-tank is also connected with suction pump, the water inlet of described suction pump is connected to the bottom of clarifier-tank by water inlet pipe, delivery port is connected with outlet pipe, described outlet pipe stretches in clarifier-tank and is positioned at the top of clarifier-tank, the outlet pipe that is arranged in clarifier-tank is parallel to alkali lye liquid level, is arranged on the outlet pipe of clarifier-tank and is evenly provided with hole for water spraying, on described hole for water spraying, filter screen is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310519919.7A CN103585872A (en) | 2013-10-29 | 2013-10-29 | Purifier for automatically replacing alkali lye |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310519919.7A CN103585872A (en) | 2013-10-29 | 2013-10-29 | Purifier for automatically replacing alkali lye |
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| Publication Number | Publication Date |
|---|---|
| CN103585872A true CN103585872A (en) | 2014-02-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310519919.7A Pending CN103585872A (en) | 2013-10-29 | 2013-10-29 | Purifier for automatically replacing alkali lye |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106693811A (en) * | 2015-11-18 | 2017-05-24 | 湖北金汉江精制棉有限公司 | Refined cotton alkali liquid preparation and recycling system |
| CN109499972A (en) * | 2018-12-19 | 2019-03-22 | 南京诺丹工程技术有限公司 | A kind of portable processor can be used for cleaning experiment chamber ventilated cabinet, exhaust piping |
-
2013
- 2013-10-29 CN CN201310519919.7A patent/CN103585872A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106693811A (en) * | 2015-11-18 | 2017-05-24 | 湖北金汉江精制棉有限公司 | Refined cotton alkali liquid preparation and recycling system |
| CN109499972A (en) * | 2018-12-19 | 2019-03-22 | 南京诺丹工程技术有限公司 | A kind of portable processor can be used for cleaning experiment chamber ventilated cabinet, exhaust piping |
| CN109499972B (en) * | 2018-12-19 | 2023-12-05 | 南京诺丹工程技术有限公司 | Portable processor capable of being used for cleaning laboratory fume hood and waste gas pipeline |
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Application publication date: 20140219 |