CN101530708A - Waste gas purification method and equipment - Google Patents
Waste gas purification method and equipment Download PDFInfo
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- CN101530708A CN101530708A CN200910119422A CN200910119422A CN101530708A CN 101530708 A CN101530708 A CN 101530708A CN 200910119422 A CN200910119422 A CN 200910119422A CN 200910119422 A CN200910119422 A CN 200910119422A CN 101530708 A CN101530708 A CN 101530708A
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Abstract
The invention relates to a waste gas purification method and equipment, especially to a industrial waste gas dedusting, dewatering and desulfurization method and equipment. Technical scheme of the invention includes steps: spraying water to waste gas to fully mix and separate gas and water and make dust-containing sewage to flow downwards; making the waste gas to flow upwards to enter a helical channel, carrying out deceleration and temperature lowering for the waste gas so that contained water is adhered to wall of the helical channel to naturally flow downwards; and discharging the purified flue gas. The invention has advantages that compared with common industrial waste gas dedusting, dehydrating and desulfurization equipment, the invention saves investment by two thirds, has small resistance and high purification efficiency, does not generate secondary pollution, has simple structure and can substitute wet type dedusting facility such as common impact wet type filtration deduster and water bath deduster, water collection efficiency of the helical channel can reach 90%, and waste gas after secondary purification reaches national standard and is discharged into atmosphere, so that the invention has environmental protection and waste water circulation, namely emission reduction, functions.
Description
Affiliated technical field:
The present invention relates to a kind of purification method and equipment of waste gas, the method and apparatus of particularly industrial waste gas dedusting, dehydration, desulfurization.
Background technology:
At present, coal slime, brown coal drying and upgrading can produce large quantity of exhaust gas, industries such as metallurgy, building materials also produce a large amount of hot industry waste gas, need carry out purified treatment, and the method for industrial waste gas dedusting, dehydration, desulfurization mainly comprises following process: industrial waste gas is fed in the water, carry out water bath dust-removing, perhaps, mix, separate and carry out udst separation or the like, desulfurization if desired by air water to the waste gas shower water, in water, add alkaline matter, and undertaken by desulfurizer.The problem that above-mentioned method for purifying waste gases and equipment exist is: investment is big, technology and complex structure, and purification efficiency is low.
Summary of the invention:
The object of the invention provides a kind of purification method and equipment of waste gas, simplifies the process for purifying process, reduces investment, improves purification efficiency, and energy-conserving and environment-protective solve the problems referred to above that background technology exists.
The present invention seeks to be achieved through the following technical solutions:
1. to the waste gas shower water, make air water fully mix, separate, the sewage that contains dust flows out downwards;
2. waste gas upwards flows, and enters helical channel, and waste gas is by slowing down, lowering the temperature, and contained moisture content sticks on the helical channel wall, under the spontaneous current;
3. flue gas after being purified is discharged.
The quantity of said helical channel can be one, also can be more than two, and the center of helical channel can be hollow, when flue gas passes through, forms a gas column.Helical channel is exactly the cavity that is made of helical blade, helical form is spiraled and advanced.
Containing micronic dust waste gas is squeezed in the malleation mode by air-introduced machine, mix with shower water, the dust that carries in the waste gas is dissolved in the water droplet, because the effect of malleation, the direction of waste gas was downward before this, racing makes progress for 180 ° again then, and the sewage that major part is contained dust throws away by centrifugal action, and sewage can enter sewage disposal system and recycle.
Waste gas after first time dedusting dehydration purifies enters the helical channel dehydration immediately and purifies, and is in contact with one another at spiral and waste gas and not only slows down flow velocity in the collision, and the water droplet with contained micronic dust collects again, flows down by the suitable spiral wall of its gravity, repeats above-mentioned circulation.
The cleaning equipment of waste gas comprises exhaust gas entrance, spray equipment, foul water tank, helical channel, exhanst gas outlet, and exhaust gas entrance, spray equipment, foul water tank arrange that successively the top of foul water tank is provided with helical channel, and the top of helical channel is provided with exhanst gas outlet.
The quantity of said helical channel can be one, also can be more than two, and the center of helical channel can be hollow, when flue gas passes through, forms a gas column.Helical channel is made up of helical blade, also is provided with water fender on helical blade, makes that the sewage under the collection drips, and secondary is blown afloat and takes away by air-flow never again.
Exhaust gas entrance is a downward elbow, makes the direction of exhaust-gas flow downward before this, and spray equipment comprises spraying water nozzle and sparge pipe, is arranged on the exhaust gas entrance place, and foul water tank is arranged on the exhaust gas entrance bottom, and the bottom of foul water tank is provided with sewage draining exit and flashback tank.
When putting into suitable basic species in the spray water, this system also plays desulfidation.
The present invention is not only applicable to coal drying and dewatering, but also can be widely used in metallurgy, building materials and other waste gas purification places.
The invention has the beneficial effects as follows: compare with common industrial waste gas dedusting, dehydration, desulphurization plant, reduce investment outlay 2/3rds; The little purification efficiency height of resistance, the water collection efficiency of helical channel can reach 90 percent, can not produce secondary pollution; Simple for structurely can replace wet dust removal facilities such as common impact wet filter dust collecting technique device, wet dust collector; Waste gas behind the double purification is disposed to atmosphere after reaching " GB ", has played the i.e. reduction of discharging effect that circulates of environmental-protection function and waste water.
Description of drawings:
Description of drawings:
Fig. 1 is the structure chart of the embodiment of the invention.
Fig. 2 is the A-A sectional structure schematic diagram of the embodiment of the invention.
Among the figure: rainhat 1. housing 2, helical blade 3, foul water tank 4, exhaust gas entrance 5, flange 6, spraying water nozzle 7, sparge pipe 8, support 9, sewage draining exit 10, flashback tank 11, water fender 12.
The specific embodiment:
Below in conjunction with accompanying drawing, further specify the present invention by embodiment.
In an embodiment, the cleaning equipment of waste gas comprises exhaust gas entrance 5, spray equipment, foul water tank 4, helical channel, exhanst gas outlet, and the top of foul water tank 4 is provided with helical channel, and the top of helical channel is provided with exhanst gas outlet.The quantity of present embodiment helical channel is two, differs 180 ° of layouts on the plane, and the center of helical channel is hollow, when flue gas passes through, forms a gas column.Helical channel is made up of helical blade 3, also is provided with water fender 12 on helical blade, and water fender makes that near said hollow gas column the sewage under the collection drips, and secondary is blown afloat and takes away by air-flow never again.Exhaust gas entrance 5 is downward elbows, make the direction of exhaust-gas flow downward before this, spray equipment comprises spraying water nozzle 7 and sparge pipe 8, support 9, is arranged on the exhaust gas entrance place, foul water tank is arranged on the exhaust gas entrance bottom, and the bottom of foul water tank is provided with sewage draining exit 10 and flashback tank 11.
Contain micronic dust waste gas and squeeze into exhaust gas entrance 5 in the malleation mode by air-introduced machine, mix with water smoke by 7 ejections of spraying water nozzle, the dust that carries in the waste gas is dissolved in the water droplet, when air-flow enters foul water tank 4 downwards 180 ° of racings upwards flows into helical channel again, the sewage that major part is contained dust gets rid of into foul water tank 4 by centrifugal action, its sewage, returns coal preparation plant's concentration basin again and recycles or enter sewage disposal system and recycle to cesspool by sewage draining exit 10, flashback tank 11 overflows.Waste gas after the first time, the dedusting dehydration purified enters helical channel immediately, be in contact with one another in the collision at helical blade and waste gas, not only slow down flow velocity and again the water droplet of contained micronic dust is collected, flow into foul water tank 4 along its helical blade, repeat above-mentioned circulation by its gravity.Be provided with rainhat 1 above the exhanst gas outlet.
Claims (10)
1, a kind of purification method of waste gas is characterized in that comprising the steps:
1. to the waste gas shower water, make air water fully mix, separate, the sewage that contains dust flows out downwards;
2. waste gas upwards flows, and enters helical channel, and waste gas is by slowing down, lowering the temperature, and contained moisture content sticks on the helical channel wall, under the spontaneous current;
3. flue gas after being purified is discharged.
2, according to the purification method of the described waste gas of claim 1, it is characterized in that waste gas squeezed in the malleation mode by air-introduced machine, mix with shower water, the dust that carries in the waste gas is dissolved in the water droplet, because the effect of malleation, the direction of waste gas was downward before this, and racing makes progress for 180 ° again then, and the sewage that major part is contained dust throws away by centrifugal action.
3, according to the purification method of claim 1 or 2 described waste gas, the quantity that it is characterized in that said helical channel is more than two, and the center of helical channel can be hollow, flue gas by the time, form a gas column.
4, a kind of cleaning equipment of waste gas, it is characterized in that comprising exhaust gas entrance (5), spray equipment, foul water tank (4), helical channel, exhanst gas outlet, exhaust gas entrance, spray equipment, foul water tank are arranged successively, the top of foul water tank is provided with helical channel, and the top of helical channel is provided with exhanst gas outlet.
5,, it is characterized in that the cavity that said helical channel is spiraled and advanced by helical blade (3) formation, helical form according to the cleaning equipment of the described waste gas of claim 4.
6,, it is characterized in that also being provided with on the said helical blade water fender (12) according to the cleaning equipment of the described waste gas of claim 5.
7,, it is characterized in that exhaust gas entrance (5) is a downward elbow according to the cleaning equipment of the described waste gas of claim 4.
8,, it is characterized in that said spray equipment comprises spraying water nozzle (7) and sparge pipe (8), support (9), is arranged on the exhaust gas entrance place according to the cleaning equipment of the described waste gas of claim 4.
9, according to the cleaning equipment of the described waste gas of claim 4, it is characterized in that said foul water tank is arranged on the exhaust gas entrance bottom, the bottom of foul water tank is provided with sewage draining exit (10) and flashback tank (11).
10, according to the cleaning equipment of the described waste gas of claim 4, the quantity that it is characterized in that said helical channel is two, differs 180 ° of layouts on the plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910119422A CN101530708A (en) | 2009-03-13 | 2009-03-13 | Waste gas purification method and equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910119422A CN101530708A (en) | 2009-03-13 | 2009-03-13 | Waste gas purification method and equipment |
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| CN101530708A true CN101530708A (en) | 2009-09-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910119422A Pending CN101530708A (en) | 2009-03-13 | 2009-03-13 | Waste gas purification method and equipment |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103727758A (en) * | 2013-12-13 | 2014-04-16 | 中国神华能源股份有限公司 | Method and system for treating lignite |
| CN103994446A (en) * | 2014-06-10 | 2014-08-20 | 李登平 | Furnace slag separation assembly and circulating sulfuration bed incinerator using assembly |
| CN104073295A (en) * | 2014-06-24 | 2014-10-01 | 中国神华能源股份有限公司 | Washing tower and coal gasification process system with same |
| CN104214828A (en) * | 2014-05-04 | 2014-12-17 | 徐海锋 | Wind and rain type air purification method |
| CN104492215A (en) * | 2014-12-18 | 2015-04-08 | 浙江洁宇环保装备科技有限公司 | Hybrid-type dust removal device |
| CN106582176A (en) * | 2016-12-26 | 2017-04-26 | 苏州柯米智能科技有限公司 | Printing and dyeing waste gas treatment device |
| CN106582121A (en) * | 2017-01-11 | 2017-04-26 | 南京宇行环保科技有限公司 | Tube bundle type dedusting and demisting device with liquid collection function |
| CN109260869A (en) * | 2018-11-29 | 2019-01-25 | 邢明 | A kind of industrial waste gas treatment process |
| CN110975464A (en) * | 2019-11-12 | 2020-04-10 | 天津大学 | Spiral sleeve type water bath dust collector |
| CN113382796A (en) * | 2018-12-12 | 2021-09-10 | 菲特拉集团有限公司 | Device and method for fluid purification |
-
2009
- 2009-03-13 CN CN200910119422A patent/CN101530708A/en active Pending
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103727758A (en) * | 2013-12-13 | 2014-04-16 | 中国神华能源股份有限公司 | Method and system for treating lignite |
| CN103727758B (en) * | 2013-12-13 | 2016-04-13 | 中国神华能源股份有限公司 | A kind of processing method of brown coal and system |
| CN104214828A (en) * | 2014-05-04 | 2014-12-17 | 徐海锋 | Wind and rain type air purification method |
| CN104214828B (en) * | 2014-05-04 | 2017-10-10 | 徐友明 | A kind of windy and rainy formula air purification method |
| CN103994446A (en) * | 2014-06-10 | 2014-08-20 | 李登平 | Furnace slag separation assembly and circulating sulfuration bed incinerator using assembly |
| CN103994446B (en) * | 2014-06-10 | 2016-08-31 | 李登平 | A kind of slag separation assembly and apply the circulating fluid-bed incinerator of this assembly |
| CN104073295B (en) * | 2014-06-24 | 2016-10-05 | 中国神华能源股份有限公司 | Scrubbing tower and there is the coal gasifying process system of this scrubbing tower |
| CN104073295A (en) * | 2014-06-24 | 2014-10-01 | 中国神华能源股份有限公司 | Washing tower and coal gasification process system with same |
| CN104492215A (en) * | 2014-12-18 | 2015-04-08 | 浙江洁宇环保装备科技有限公司 | Hybrid-type dust removal device |
| CN104492215B (en) * | 2014-12-18 | 2016-05-18 | 浙江洁宇环保装备科技有限公司 | Hybrid dust arrester |
| CN106582176A (en) * | 2016-12-26 | 2017-04-26 | 苏州柯米智能科技有限公司 | Printing and dyeing waste gas treatment device |
| CN106582121A (en) * | 2017-01-11 | 2017-04-26 | 南京宇行环保科技有限公司 | Tube bundle type dedusting and demisting device with liquid collection function |
| CN109260869A (en) * | 2018-11-29 | 2019-01-25 | 邢明 | A kind of industrial waste gas treatment process |
| CN113382796A (en) * | 2018-12-12 | 2021-09-10 | 菲特拉集团有限公司 | Device and method for fluid purification |
| CN113382796B (en) * | 2018-12-12 | 2023-09-22 | 菲特拉必特有限公司 | Apparatus and method for fluid purification |
| CN110975464A (en) * | 2019-11-12 | 2020-04-10 | 天津大学 | Spiral sleeve type water bath dust collector |
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Open date: 20090916 |