CN203954998U - A kind of acidic flue gas absorption system - Google Patents
A kind of acidic flue gas absorption system Download PDFInfo
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- CN203954998U CN203954998U CN201420369945.6U CN201420369945U CN203954998U CN 203954998 U CN203954998 U CN 203954998U CN 201420369945 U CN201420369945 U CN 201420369945U CN 203954998 U CN203954998 U CN 203954998U
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- acidic flue
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Abstract
The utility model has been introduced a kind of acidic flue gas absorption system, for chemical field, comprises water sealed tank, jet pump, injection water tank, gas trap, absorption liquid bath, circulating pump; Water sealed tank gas vent is connected to the jet of injection water upper box part, sprays water tank gas vent and is connected to gas trap, absorbs liquid in liquid bath and squeezes into gas trap by circulating pump circulation.In Chemical Manufacture; the handling meeting of volatile acid produces with a large amount of acid mists, and the utility model can absorb acid mist substantially completely, avoids its corrosion to production equipment; protection operating personnel's is healthy, and has stopped the environmental pollution that the random discharge of acidic flue gas causes.
Description
Technical field
The utility model relates to the absorption system of a kind of acidic flue gas in chemical field.
Background technology
In chemical industry, often can run into the similarly loading and unloading of high volatile volatile acid such as sulfuric acid, nitric acid, nicotinic acid, if the little enterprise of common use amount can select not do any protective treatment measure, and directly be discharged in air; Can adopt and gas is introduced to water sealed tank carry out simple absorption processing for the large enterprise of use amount, can reduce like this part acidic flue gas and be discharged in air or in factory building.But in picture caprolactam production operation, all will carry out the loading and unloading of a large amount of volatile acids throughout the year, the acidic flue gas of volatilization is not only healthy harmful to operator, also can corrode production equipment, and environment is also caused to severe pollution.
At present also do not recognize there is the technological improvement that can finely address the above problem.
Summary of the invention
The utility model provides a kind of acidic flue gas absorption system, can be good at addressing the above problem.Mainly comprise water sealed tank, jet pump, injection water tank, gas trap, absorption liquid bath, circulating pump; Water sealed tank gas vent is connected to the jet of injection water upper box part, sprays water tank gas vent and is connected to gas trap, absorbs liquid in liquid bath and squeezes into gas trap by circulating pump circulation.
In the time preparing to carry out sour loading and unloading, the acidic flue gas in sour tank is discharged in water sealed tank by the blast pipe of drawing from breather valve, blast pipe will stretch into below liquid level, water sealed tank meeting absorption portion acidic flue gas; Unabsorbed acidic flue gas is under the effect of jet pump, entering injection water tank absorbs again, do not have absorbed gas to be then discharged in gas trap simultaneously, filler is housed in gas trap, acidic flue gas is adsorbed, absorb simultaneously certain density alkali lye is housed in liquid bath, not open close enter alkali lye and water, make the alkali concn that wherein keeps certain, circulating pump is constantly squeezed into gas trap by alkali lye, and acidic flue gas is neutralized.
On water sealed tank, injection water tank and absorption liquid bath, top is all provided with overflow pipe, bottom is all provided with discharging tube, the liquid that overflow pipe flows out all enters trench and enters acid-base neutralization pond, when after operation a period of time, water sealed tank, injection water tank and absorption liquid tank liquid acid concentration raise, and drain into trench enter acid-base neutralization pond by bottom discharging tube.
Consider that winter temperature is lower, prevent the operation of water sealed tank icing effect system, be provided with steam pipeline in water sealed tank outer periphery, introduce the steam producing in production technology and heat up, guarantee system is normally moved.
Advantage of the present utility model:
1, simple in structure, stable, can absorb more than 98% acidic flue gas;
2, save anticorrosion expense, improve and unload sour car turnaround speed;
3, safety and environmental protection, protection staff is healthy.
Brief description of the drawings
Accompanying drawing 1 is system operational flow diagram, 1-water sealed tank, 2-jet pump, 3-injection water tank,
4-gas trap, 5-absorption liquid bath, 6-circulating pump.
Specific embodiment
Illustrate the beneficial effects of the utility model to unload sour concrete operations flow process in caprolactam production below.
1, the valve that sealed cans 1 top is communicated with atmosphere of fetching boiling water, closes bottom tapping valve, in tank, adds water, until overflow pipe there are flowing out, keeps the water of low discharge;
2, add water to absorbing in liquid bath 5, add in proportion 40% liquid caustic soda simultaneously.Until flowmeter reaches normal liquid level or overflow pipe there are flowing out, keep appropriate water, liquid caustic soda flow, maintain alkali in groove content between 8%～12%;
3, open circulating pump 6, jet pump 2 terminal valves, after pump priming exhaust completes, close outlet valve;
4, startup circulating pump 6, jet pump 2 are set up the circulation of water sealed tank, absorption liquid bath, gas trap;
5, after the blast pipe of nitric acid, 98% sulfuric acid, nicotinic acid being passed into below water sealed tank 1 liquid level, water sealed tank meeting absorption portion acidic flue gas; Unabsorbed acidic flue gas is under the effect of jet pump 2, entering injection water tank 3 absorbs again, do not have absorbed gas can then be discharged in gas trap 4 simultaneously, in gas trap 4, filler is housed, acidic flue gas is adsorbed, absorb simultaneously the liquid caustic soda that adds in proportion 40% is housed in liquid bath 5.Until flowmeter reaches normal liquid level or overflow pipe there are flowing out, keep appropriate water, liquid caustic soda flow, maintain alkali in groove content between 8%～12%, gas trap 4 constantly squeezed into alkali lye by circulating pump 6, and acidic flue gas is neutralized;
6, the valve that water sealed tank 1 top is communicated with atmosphere keeps often opening, and prevents that jet pump 2 from vacuumizing system for a long time.
Adopt after improved acidic flue gas absorption system, can reduce every year sulfur sesquioxide discharge 115000NM3, can save anticorrosion expense, reduce the hidden danger that causes pipe leakage because of corrosion; By transformation, can improve the exhaust efficiency of unloading that nicotinic acid is unloaded, improve the turnaround speed of nicotinic acid tank car.
Claims (1)
1. an acidic flue gas absorption system, is characterized in that: comprise water sealed tank (1), jet pump (2), spray water tank (3), gas trap (4), absorb liquid bath (5), circulating pump (6); Water sealed tank (1) gas vent is connected to the jet that sprays water tank (3) top, sprays water tank (3) gas vent and is connected to gas trap (4), absorbs the interior liquid of liquid bath (5) and squeezes into gas trap (4) by circulating pump (6) circulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420369945.6U CN203954998U (en) | 2014-07-07 | 2014-07-07 | A kind of acidic flue gas absorption system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420369945.6U CN203954998U (en) | 2014-07-07 | 2014-07-07 | A kind of acidic flue gas absorption system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203954998U true CN203954998U (en) | 2014-11-26 |
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ID=51915641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420369945.6U Active CN203954998U (en) | 2014-07-07 | 2014-07-07 | A kind of acidic flue gas absorption system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203954998U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107051151A (en) * | 2016-12-13 | 2017-08-18 | 广西红润化工科技有限公司 | Combined type multi-stage falling-film absorption tower for exhaust-gas treatment |
| CN110354916A (en) * | 2019-08-12 | 2019-10-22 | 国电环境保护研究院有限公司 | A kind of carbon base catalyst regenerative system |
-
2014
- 2014-07-07 CN CN201420369945.6U patent/CN203954998U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107051151A (en) * | 2016-12-13 | 2017-08-18 | 广西红润化工科技有限公司 | Combined type multi-stage falling-film absorption tower for exhaust-gas treatment |
| CN110354916A (en) * | 2019-08-12 | 2019-10-22 | 国电环境保护研究院有限公司 | A kind of carbon base catalyst regenerative system |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |