CN101480573A - Air-operated scrubbing dedusting desulfurizing purifier - Google Patents
Air-operated scrubbing dedusting desulfurizing purifier Download PDFInfo
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- CN101480573A CN101480573A CNA2009100137253A CN200910013725A CN101480573A CN 101480573 A CN101480573 A CN 101480573A CN A2009100137253 A CNA2009100137253 A CN A2009100137253A CN 200910013725 A CN200910013725 A CN 200910013725A CN 101480573 A CN101480573 A CN 101480573A
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Abstract
The invention provides a pneumatic gas-washing dust-removing desulfurization purifier and relates to dust-removing desulfurization equipment, in particular to pneumatic gas-washing dust-removing desulfurization equipment which is suitable for a wet method dust removing desulfurization process. A shell of the purifier is sequentially provided with a water sealing chamber, a uniformly-distributed speed adjusting chamber, a pneumatic gas washing chamber and a gas-water separating chamber from bottom to top; one side of the water sealing chamber is provided with an overflowing opening; the side of the gas uniformly-distributed speed adjusting chamber is provided with a flue inlet inclining downwards from the outside to the inside, and the inside of the gas uniformly-distributed speed adjusting chamber is provided with a uniformly-distributed constant speed device; the lower part of the pneumatic gas washing chamber is provided with a pneumatic gas washing device, the upper part of the pneumatic gas washing chamber is provided with a supply pipe of desulfurizing agents, and the supply pipe of the desulfurizing agents is provided with a supply opening of the desulfurizing agents; the upper part and the lower part of the gas-water separating chamber are provided with a water baffle respectively, a stacked dewatering ring is arranged between the water baffles at the upper part and the lower part, and the upper end of the gas-water separating chamber is provided with an exhaust opening. The invention has the advantages of high desulfurization dust removal rate, less water consumption, low operation cost, energy saving, convenient use and maintenance, long service life, and the like.
Description
Technical field
The present invention relates to a kind of dust-removal and desulfurizing equipment, particularly be applicable to a kind of air-operated scrubbing dedusting desulfurizing equipment of wet dedusting desulfurization technology.
Background technology
China is sulfur dioxide (SO2) emissions big countries, and acid rain pollutes the restraining factors that become China's sustainable development, so country encourages exploitation to have autonomous property right desulfurization new technology, new equipment.
The research to flue gas desulfurization abroad starts from 1850, and the existing so far kind more than 260 of the control technology of sulfur dioxide enters the commercial only kind of using more than ten, and all the other major parts still are in pilot scale or development phase.
Homemade desulfurization equipment can not satisfy new emission request, from the desulfur technology of external introduction based on spray.It is the sulfur method commonly used of large thermal power plant that spray desulfurizing tower cooperates lime stone-gypsum method technology.China has introduced this class technology and equipment from a plurality of countries, and desulfurizing tower claims churning, side spray, spraying, fluid column etc. again, and essence all is the multilayer spray.Nozzle sprays vaporific doctor solution, and droplet is made freely falling body and descended in desulfurizing tower, contact at random with the flue gas that makes progress in the tower, and desulfuration efficiency is by the size in spray space, the flow velocity of flue gas, the decisions such as density of spray.The technology comparative maturity of introducing, the desulfurization degree height, the desulfurization of the above unit of domestic 200MW all is to adopt this method.But imported technology and equipment is of a high price.
Homemade desulfur technology and equipment mainly contain granite with water film desulfurizing dust-collector, impact type desulfurizing dust-collector, venturi desulfurizing dust-collector, eddy flow plate desulfurizing dust-collector, foam desulfurizing dust-collector etc.In one very long period, the Industrial Boiler that is applied to little exhaust gas volumn that these purifiers are a large amount of and the desulfurization and dedusting of Industrial Stoves become the main means of gas cleaning.They make the gas-liquid contact by modes such as water-bath, moisture film, impacts, and the single device purification efficiency is relatively low, reliability is low, and desulfuration efficiency is not high, and reason is that mass transfer is insufficient between gas-liquid, SO because gas-liquid contact time is short
2Be distributed in the flue gas, flue gas is difficult to all be compressed to water film under very little pressure, and in the process of gas-liquid contact, always having partial fume can not contact with moisture film, does not reach the SO of moisture film
2Directly discharge atmosphere from the centre, therefore, cause desulfuration efficiency generally lower, general practical sulphur removal efficient can not be higher than 85%.Just can only take to strengthen the method for quantity of circulating water in order to improve desulfuration efficiency, cigarette, gas be than mostly all more than 1:3 like this, must cause that the desulphurization plant volume is big, drawback big, factor such as water consumption is big, cost is high, operating cost is high, system complex, operation ratio are low takes up room.
Summary of the invention
The objective of the invention is provides a kind of desulfuration efficiency height in order to overcome above-mentioned shortcoming, and cigarette, gas are than little, and water consumption is little, the air-operated scrubbing dedusting desulfurizing purifier that operating cost is low.
The technical scheme of a kind of air-operated scrubbing dedusting desulfurizing purifier of the present invention is: a kind of air-operated scrubbing dedusting desulfurizing purifier is characterized in that being sequentially set with from the bottom to top in the purifier shell water-stop chamber, uniformly-distributed speed adjusting chamber, air-operated scrubbing chamber, air-water separation chamber.
One side of above-mentioned air-operated scrubbing dedusting desulfurizing purifier water-stop chamber is provided with overfall; Side, even gas distribution speed governing chamber is provided with and is the downward-sloping gas approach of ecto-entad, and its inside is provided with uniform at the uniform velocity device; Bottom, air-operated scrubbing chamber is provided with the first air-operated scrubbing device and the second air-operated scrubbing device, and top is provided with the desulfurizing agent supply pipe, and the desulfurizing agent supply pipe is provided with the desulfurizing agent supply port; Air-water separation chamber top, bottom are respectively equipped with water fender, encircle for piling up dehydration in the middle of the water fender up and down, and the air-water separation chamber upper end is provided with exhaust outlet.
Security and automaticity for the operation of raising equipment; adopt programmable controller (PLC) to carry out automation control; frequency converter directly drives squirrel-cage motor mechanism and constitutes electric-control system; make air-operated scrubbing dedusting desulfurizing purifier can be fool proof, reliable, the operation of high accuracy, low energy consumption, realize Automatic Control and protection.
The air-operated scrubbing device can adopt the manufacturing of high-strength abrasion-proof industrial ceramics, hardness height, never corrosion, and the life-span is tens of times of common carbon junction steel, is more than stainless ten times, is made into the standard spare part, it is convenient to safeguard, change.
During the work of air-operated scrubbing dedusting desulfurizing purifier of the present invention, the external air-introduced machine of exhaust outlet, desulfurizing agent solution is flowed into by the supply port of desulfurizing agent supply pipe, sulfur-bearing, cloud of dust gas enters by the downward-sloping gas approach of ecto-entad from air inlet area, impact the liquid in the water-stop chamber, carry out preliminary desulfurization and dedusting, flue gas is upwards operation after the liquid level reflection changes direction, behind the uniform at the uniform velocity device through even gas distribution speed governing chamber, mean allocation is given each air-operated scrubbing device, and make flow velocity equalization through each air-operated scrubbing device, in the air-operated scrubbing device, flue gas forms the turbulent airflow that rotation is risen, collide with the desulfurizing agent solution that flows into and fall from the supply port of desulfurizing agent supply pipe, the desulfurizing agent solution that the rotary-cut of flue gas high speed is dirty, desulfurizing agent solution is shredded, gas-liquid continues the collision rotary-cut mutually, the liquid grain is pulverized more and more thin, gas-liquid is fully mixed, form a stable emulsification liquid layer, emulsification liquid layer progressive additive, the pneumatic holder power at upper reaches and the gravity of emulsion reach balance, the emulsification liquid layer continues to thicken, the emulsion that newly formed of the emulsion of Xing Chenging replaces the earliest, as long as enough flue gas flows are arranged, always will keep a metastable emulsification liquid layer, substituted emulsion band the trash flow that the is captured water-stop chamber through even gas distribution speed governing chamber to bottom, when liquid level is higher than overfall in the water-stop chamber, overflow from overfall, gas liquid mixture behind the emulsification desulfurization and dedusting upwards enters air-water separation chamber, at water fender, the effect of dehydration ring is highly dehydration down, makes gas-liquid realize separating, the gas that humidity meets relative national standards discharges through exhaust outlet, and liquid falls to the air-operated scrubbing chamber.
Beneficial effect of the present invention is: because in emulsion, methods such as the surface area ratio water film dedusting of liquid grain, spraying and dedusting big several times to tens times, therefore, the efficient that the unit liquid measure captured and be absorbed with harmful substances enlarges markedly, actual efficiency can reach more than 98%; Because flue gas is longer relatively in the air-operated scrubbing district time of staying,, the improvement that contains ultrafine dust and high concentration sulfur dioxide flue gas that is difficult to purify qualified discharge there is remarkable advantages so desulfuration efficiency further improves; Liquid, gas ratio are low, and common wet processing liquid, gas are than being 1:3, and this equipment is 1:1, and promptly the conserve water resource reduces construction investment again, and water circulation power consumption also significantly reduces, and its power configuration reduces the last 1/2; Other wet desulphurization technology be unable to do without nozzle, have obstruction, fouling, wearing and tearing, etching problem, and this equipment does not have nozzle, and desulfurizing agent is flowed into by the supply port of desulfurizing agent supply pipe, can not occur owing to a series of problems of using nozzle to produce.This equipment desulfuration efficiency can be stablized and remains on more than 98%, and the concentration of emission of pollutant all can reach the requirement of environmental administration and each standard in the flue gas after being purified.SO after desulfurization in the discharging flue gas
2Concentration is not more than 300mg/Nm
3, and can also require further to reduce according to discharge standard.In a word, the utlity model has efficient, energy-conservation, reduced investment, use, advantage such as easy to maintenance, long service life.
Description of drawings
Fig. 1 is a structural representation of the present invention
Among the figure: 1, gas approach 2, overfall 3, uniformly at the uniform velocity install 4, first groups of air-operated scrubbing devices 5, second group of air-operated scrubbing device 6, desulfurizing agent supply pipe 7, desulfurizing agent supply port 8, water fender 9, stack dehydration ring 10, exhaust outlet 11, water-stop chamber 12, even gas distribution speed governing chamber 13, air-operated scrubbing chamber 14, air-water separation chamber
The specific embodiment
Embodiment 1 air-operated scrubbing dedusting desulfurizing purifier as shown in Figure 1 is sequentially set with water-stop chamber 11, uniformly-distributed speed adjusting chamber 12, air-operated scrubbing chamber 13, air-water separation chamber 14 from the bottom to top in the purifier shell.
One side of water-stop chamber 11 is provided with overfall 2,12 sides, even gas distribution speed governing chamber are provided with and are the downward-sloping gas approach of ecto-entad 1, its inside is provided with uniformly at the uniform velocity installs 3,13 bottoms, air-operated scrubbing chamber are provided with first group of air-operated scrubbing device 4 of two-layer air-operated scrubbing device and second group of air-operated scrubbing device 5, top is provided with desulfurizing agent supply pipe 6, desulfurizing agent supply pipe 6 is provided with a plurality of desulfurizing agent supply ports 7, air-water separation chamber 14 tops, the bottom is respectively equipped with water fender 8, be the dehydration ring 9 that is deposited in together in the middle of the water fender up and down, air-water separation chamber 14 upper ends are provided with exhaust outlet 10.The air-operated scrubbing device can adopt the manufacturing of high-strength abrasion-proof industrial ceramics, and dehydration ring, dewatering plate can adopt the stainless steel manufacturing.During work, exhaust outlet 10 external air-introduced machines, desulfurizing agent solution is flowed into through desulfurizing agent supply port 7 by desulfurizing agent supply pipe 6, sulfur-bearing, cloud of dust gas enters by the downward-sloping gas approach 1 of ecto-entad from air inlet area, impact in the water-stop chamber liquid in 11, carry out preliminary desulfurization and dedusting, flue gas is upwards operation after the liquid level reflection changes direction, after at the uniform velocity installing 3 through even gas distribution speed governing chamber 12 uniform, mean allocation is to air-operated scrubbing device 4, and make flow velocity equalization through each air-operated scrubbing device 4, in first group of air-operated scrubbing device 4, flue gas forms the turbulent airflow that rotation is risen, collide with the desulfurizing agent solution that flows into and fall from desulfurizing agent supply pipe 6 desulfurizing agents inlet 7, the desulfurizing agent solution that the rotary-cut of flue gas high speed is dirty, desulfurizing agent solution is shredded, gas-liquid continues the collision rotary-cut mutually, the liquid grain is pulverized more and more thin, gas-liquid is fully mixed, form a stable emulsification liquid layer, emulsification liquid layer progressive additive, the pneumatic holder power at upper reaches and the gravity of emulsion reach balance, the emulsification liquid layer continues to thicken, the emulsion that newly formed of the emulsion of Xing Chenging replaces the earliest, substituted emulsion band the trash flow that the is captured water-stop chamber 11 through even gas distribution speed governing chamber 12 to bottom, when liquid level is higher than overfall 2 in the water-stop chamber 11, overflow from overfall 2, upwards enter second group of air-operated scrubbing device 5 behind the secondary gas washing through the gas liquid mixture behind the emulsification desulfurization and dedusting, enter air-water separation chamber 14, at water fender 8, pile up the effect highly dehydration down of dehydration ring 9, make gas-liquid realize separating, humidity meets the gas of relative national standards through exhaust outlet 10 dischargings, and liquid falls to air-operated scrubbing chamber 13.
Embodiments of the present invention are not limited to the mode of embodiment 1, and many group air-operated scrubbing devices can also be set in the air-operated scrubbing chamber, and gas-water separation is indoor also can be provided with the multilayer water fender.
Air-operated scrubbing dedusting desulfurizing purifier of the present invention has dust-removal and desulfurizing efficient height, saves water and energy, transports The advantages such as the row expense is low are widely used in wet dedusting desulfurization technology.
Claims (2)
1, a kind of air-operated scrubbing dedusting desulfurizing purifier is characterized in that being sequentially set with from the bottom to top in the purifier shell water-stop chamber (11), uniformly-distributed speed adjusting chamber (12), air-operated scrubbing chamber (13), air-water separation chamber (14).
2, air-operated scrubbing dedusting desulfurizing purifier according to claim 1 is characterized in that a side of water-stop chamber (11) is provided with overfall (2); Side, even gas distribution speed governing chamber (12) is provided with and is the downward-sloping gas approach of ecto-entad (1), and its inside is provided with uniform at the uniform velocity device (3); Bottom, air-operated scrubbing chamber (13) is provided with the first air-operated scrubbing device (4) and the second air-operated scrubbing device (5), and top is provided with desulfurizing agent supply pipe (6), and desulfurizing agent supply pipe (6) is provided with desulfurizing agent supply port (7); Air-water separation chamber (14) top, bottom are respectively equipped with water fender (8), encircle (9) for piling up dehydration in the middle of the water fender up and down, and air-water separation chamber (14) upper end is provided with exhaust outlet (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100137253A CN101480573A (en) | 2009-01-04 | 2009-01-04 | Air-operated scrubbing dedusting desulfurizing purifier |
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2009100137253A CN101480573A (en) | 2009-01-04 | 2009-01-04 | Air-operated scrubbing dedusting desulfurizing purifier |
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| CN101480573A true CN101480573A (en) | 2009-07-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112263906A (en) * | 2020-11-04 | 2021-01-26 | 浙江三龙催化剂有限公司 | Waste gas treatment equipment of convenient high-efficient type |
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2009
- 2009-01-04 CN CNA2009100137253A patent/CN101480573A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112263906A (en) * | 2020-11-04 | 2021-01-26 | 浙江三龙催化剂有限公司 | Waste gas treatment equipment of convenient high-efficient type |
| CN112263906B (en) * | 2020-11-04 | 2022-07-12 | 浙江三龙催化剂有限公司 | Waste gas treatment equipment of convenient high-efficient type |
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Open date: 20090715 |