CN203494388U - Flue gas desulfurization and dedusting device of coal-fired boiler - Google Patents

Flue gas desulfurization and dedusting device of coal-fired boiler Download PDF

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Publication number
CN203494388U
CN203494388U CN201320627573.8U CN201320627573U CN203494388U CN 203494388 U CN203494388 U CN 203494388U CN 201320627573 U CN201320627573 U CN 201320627573U CN 203494388 U CN203494388 U CN 203494388U
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flue gas
dedusting
deduster
desulfurization
coal
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CN201320627573.8U
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石金兴
陈定林
石强
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QUJING ZHONGTAI NEW WALL MATERIAL CO Ltd
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QUJING ZHONGTAI NEW WALL MATERIAL CO Ltd
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Abstract

The utility model discloses a flue gas desulfurization and dedusting device of a coal-fired boiler. The flue gas desulfurization and dedusting device of the coal-fired boiler comprises the coal-fired boiler, a flue gas input pipe, a deduster, a drainage port, a smoke outlet channel, a draught fan and a chimney, wherein an annular dedusting sprinkling pipe is arranged at the upper section in the deduster, and an annular desulfurization sprinkling pipe is arranged at the upper side of the dedusting sprinkling pipe. The flue gas desulfurization and dedusting device can perform dedusting by combining absorbing and sprinkling modes and the multi-level spraying mode, and a desulfurization zone is arranged in the deduster, so that the dedusting operation and the desulfurization operation can be promoted mutually, dust, sulphides and other poisonous gases in the flue gas can be effectively purified and absorbed, the dust collection coefficient can reach 99%, the desulfurization degree can reach 100%, the flue gas desulfurization and dedusting device has a function of integrating the desulfurization and dedusting operations, has good desulfurization and dedusting effects, small occupied area, low investment cost and low resource consumption, can meet the high environment-friendly requirement and has a good promotional value.

Description

A kind of coal burning flue gas desulfurization dust arrester
Technical field
The utility model relates to udst separation reclaimer technical field, is specifically related to a kind of coal burning flue gas desulfurization dust arrester.
Background technology
Coal-burning boiler is an energy conversion, has the forms such as heat energy of chemical energy in fuel, electric energy, high-temperature flue gas to the energy of boiler input, and through the conversion of boiler, outwards output has steam, high-temperature water or the organic heat carrier of certain heat energy.At present, the use of coal-burning boiler is still very extensive, coal-burning boiler can produce a large amount of flue gases when work, and contained dust, sulphur and nitrogen oxide are all the materials of atmosphere pollution in these flue gases, without the flue gas purifying, come in air not only contaminated environment, and in flue dust, also often carry noxious material, can work the mischief to human body, so the pollution that the soot emissions of coal-burning boiler cause is also an important problem.Along with expanding economy, requirement for environmental protection is also more and more higher, for a long time, people are for solving the smoke contamination problem of boiler, technology and the product of a lot of dedustings have been proposed, but basic too large in effective investment and loss, invest the state of little weak effect again, the showering dust-removing device for boiler that in industry, the more mode that still adopts multilayer water curtain sprinkling of application is carried out dedusting at present, this apparatus structure is simple, cost is low, dust removal efficiency is relatively high, but still have the following disadvantages: 1. apparatus function is single, there is no special desulfurizer, sewage sulfur content after precipitation process of discharging is still higher, arbitrarily discharge can cause secondary pollution again, and floor space is wide, 2. not good to the dedusting of flue gas, desulfurized effect, the flue gas after processing is difficult to reach the standard of discharge, 3. in multifeed clarifier, add desulfurizing agent, it is carried out to desulfurization and dedusting, need a large amount of desulfurizing agents, resource consumption is large.Therefore, develop a kind of desulphurizing and dust-removing integral, floor space is little, cost of investment is low, dedusting, desulfurized effect is good, resource consumption is few, can reach compared with the coal burning flue gas desulfurization dust arrester of high-environmental requirement is desirability.
Summary of the invention
The purpose of this utility model is to provide a kind of desulphurizing and dust-removing integral, floor space is little, cost of investment is low, dedusting, desulfurized effect is good, resource consumption is few, can reach the coal burning flue gas desulfurization dust arrester compared with high-environmental requirement.
The purpose of this utility model is to realize like this, the utility model comprises coal-burning boiler, flue gas input pipe, deduster, sewage draining exit, smoke-outlet flue, air-introduced machine and chimney, in deduster, epimere is provided with annular dedusting shower, the flue gas that coal-burning boiler produces successively by discharging from chimney after flue gas input pipe, deduster, smoke-outlet flue under the traction of air-introduced machine, vertically downward, deduster hypomere is provided with overfall from 200~500mm place, bottom surface in the outlet of described flue gas input pipe in deduster; The upside of described dedusting shower is provided with annular desulfuration spraying tube, and desulfuration spraying tube is communicated with desulfurization water tank by desulfurization water inlet pipe, and the shower nozzle that can spray to the inside through deduster is installed on desulfuration spraying tube.
The utility model is by flue gas input pipe, the outlet in deduster is arranged on direction vertically downward, utilize the absorption property of water to dust, carry out dedusting, after making dust meet water, be dissolved in the water of deduster bottom, and the dust that can not be adsorbed with water is completely simultaneously under the spray of dedusting shower, can be mixed fast and effectively and be fallen into deduster with shower water, flue gas after spray is simultaneously after the spray of desulfuration spraying tube water curtain, the pernicious gases such as sulfide in various flue dust can be carried out to acid-base neutralization absorption, thereby realize the thorough desulfurization and dedusting to flue gas, avoid environment.Adopt the mode that combination is drenched in this suction to carry out dedusting, improved greatly the effect of dedusting, both reached the object of desulfurization, also further the dust in flue gas is removed thoroughly, flue gas after multilevel water curtains spray, dust removal efficiency can reach more than 99%, and desulfurization degree can reach 100%.Therefore, this device can effectively purify, absorb the toxic gases such as dust in flue gas, sulfide, there is desulfurization, dust removal integrated function, and dedusting, desulfurized effect are good, the feature that area is little, cost of investment is low, resource consumption is few, can reach compared with high-environmental requirement, there is good promotional value.
Accompanying drawing explanation
Fig. 1 is the utility model overall structure schematic diagram.
In figure: 1-multifeed clarifier, 2-sewage draining exit, 3-coal-burning boiler, 4-flue gas input pipe, 5-deduster, 6-desulfurization water tank, 7-desulfurization water inlet pipe, 8-shower nozzle, 9-smoke-outlet flue, 10-desulfuration spraying tube, 11-silk screen, 12-dedusting shower, 13-impact-absorbing shell, 14-overfall, 15-circulation drainpipe, 16-water inlet pipe, 17-air-introduced machine, 18-circulation water inlet pipe, 19-chimney.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is further described, but never in any form the utility model is limited, any change or the improvement based on the utility model training centre, done, all belong to protection domain of the present utility model.
As shown in Figure 1, the utility model comprises coal-burning boiler 3, flue gas input pipe 4, deduster 5, sewage draining exit 2, smoke-outlet flue 9, air-introduced machine 17 and chimney 19, the interior epimere of deduster 5 is provided with annular dedusting shower 12, the flue gas that coal-burning boiler 3 produces successively by discharging from chimney 19 after flue gas input pipe 4, deduster 5, smoke-outlet flue 9 under the traction of air-introduced machine 17, vertically downward, deduster 5 hypomeres are provided with overfall 14 from 200~500mm place, bottom surface in the outlet of described flue gas input pipe 4 in deduster 5; The upside of described dedusting shower 12 is provided with annular desulfuration spraying tube 10, and desulfuration spraying tube 10 is communicated with desulfurization water tank 6 by desulfurization water inlet pipe 7, and the shower nozzle 8 that can spray to the inside through deduster 5 is installed on desulfuration spraying tube 10.
This device is by flue gas input pipe 4, the outlet in deduster 5 is arranged on direction vertically downward, utilize the absorption property of water to dust, make from coal-burning boiler 3 flue gas out because being subject to the heat energy impulse force of coal-burning boiler 3, make dust meet water, the absorption of water is dissolved in the water of deduster 5 bottoms dust, the dust that can not be adsorbed is completely simultaneously under the spray effect of dedusting shower 12, can be mixed fast and effectively and be fallen into deduster 5 with shower water, in flue gas after dedusting shower 12 sprays, contained a large amount of harmful substances such as sulfide, when 12 pairs of flue gases of dedusting shower spray, the annular desulfuration spraying tube 10 that is arranged on the upside of dedusting shower 12 carries out water curtain sprinkling, and add desulfurizing agent in desulfurization water tank 6, make the flue gas of boiler discharge after containing alkaline water curtain sprinkling, the pernicious gases such as sulfide in various flue dust can be carried out to acid-base neutralization absorption, reach dedusting, the object of desulfurization.Like this, gas after desulfurization and dedusting is discharged in air, and dust soluble in water is after the interior precipitation of deduster 5, the pasty mass of deduster 5 bottoms is discharged from sewage draining exit, sewage after overfall 14 by circulation drainpipe 16 platoons to multifeed clarifier 1, circulation water inlet pipe 18 is communicated with outlet and the water inlet pipe 16 of multifeed clarifier 1 simultaneously, form a water passage circulation system, the waste water that flows into multifeed clarifier 1 can be used as the spray-water of dedusting shower 12 after precipitation, realized the utilization that circulates in of resource, saved great lot of water resources, reduced production cost.
Further, in deduster 5 inner walls in the middle of described desulfuration spraying tube 10 and dedusting shower 12, silk screen 11 is installed, it is for smog can fully be contacted with water that silk screen 11 is installed, at desulfuration spraying tube 10, contain under the spray of alkaline water curtain, the harmful substances such as sulfide can be absorbed completely, and the number of plies of silk screen 11 can arrange according to actual needs flexibly.
For the time of staying of prolong smoke in deduster 5, the impact-absorbing shell 13 of taper is installed in the deduster 5 inside center positions that dedusting shower 12 places are installed, make to enter flue gas in deduster 5 under the drag effect of impact-absorbing shell 13, dust in flue gas can be dissolved in the water in deduster 5 fast, improves the efficiency of dedusting.
Further, be corroded when avoiding adopting steel as housing, the housing of described deduster 5 can form by some integral ring-shaped granite closed assemblies bondings.

Claims (5)

1. a coal burning flue gas desulfurization dust arrester, comprise coal-burning boiler (3), flue gas input pipe (4), deduster (5), sewage draining exit (2), smoke-outlet flue (9), air-introduced machine (17) and chimney (19), the interior epimere of deduster (5) is provided with annular dedusting shower (12), the flue gas that coal-burning boiler (3) produces is successively by flue gas input pipe (4), deduster (5), after smoke-outlet flue (9), under the traction of air-introduced machine (17), from chimney (19), discharge, it is characterized in that: the outlet of described flue gas input pipe (4) in deduster (5) vertically downward, deduster (5) hypomere is provided with overfall (14) from 200~500mm place, bottom surface, the upside of described dedusting shower (12) is provided with annular desulfuration spraying tube (10), desulfuration spraying tube (10) is communicated with desulfurization water tank (6) by desulfurization water inlet pipe (7), is provided with and can passes the shower nozzle (8) that deduster (5) sprays to the inside on desulfuration spraying tube (10).
2. a kind of coal burning flue gas desulfurization dust arrester according to claim 1, is characterized in that: in deduster (5) inner walls in the middle of described desulfuration spraying tube (10) and dedusting shower (12), silk screen (11) is installed.
3. a kind of coal burning flue gas desulfurization dust arrester according to claim 1, it is characterized in that: described overfall (14) is connected to multifeed clarifier (1) by circulation drainpipe (16), circulation water inlet pipe (18) is communicated with outlet and the water inlet pipe (16) of multifeed clarifier (1) simultaneously.
4. a kind of coal burning flue gas desulfurization dust arrester according to claim 1, is characterized in that: deduster (5) inside center position that dedusting shower (12) locates is being installed is provided with the impact-absorbing shell (13) of taper.
5. a kind of coal burning flue gas desulfurization dust arrester according to claim 1, is characterized in that: the housing of described deduster (5) is made by granite closed assembly bonding.
CN201320627573.8U 2013-10-12 2013-10-12 Flue gas desulfurization and dedusting device of coal-fired boiler Active CN203494388U (en)

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CN201320627573.8U CN203494388U (en) 2013-10-12 2013-10-12 Flue gas desulfurization and dedusting device of coal-fired boiler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320627573.8U CN203494388U (en) 2013-10-12 2013-10-12 Flue gas desulfurization and dedusting device of coal-fired boiler

Publications (1)

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CN203494388U true CN203494388U (en) 2014-03-26

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103990339A (en) * 2014-04-30 2014-08-20 吴佳明 Modularization purifier and purifying method thereof
CN103990368A (en) * 2014-06-03 2014-08-20 江苏桂铭机械有限公司 Smoke washing comprehensive utilization system equipment
CN105311896A (en) * 2015-12-09 2016-02-10 攀枝花大互通钛业有限公司 Flue dust remover
CN108854358A (en) * 2018-07-10 2018-11-23 马鞍山市如松冶金科技有限责任公司 One kind spraying Integral dust catcher by spraying

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103990339A (en) * 2014-04-30 2014-08-20 吴佳明 Modularization purifier and purifying method thereof
CN103990368A (en) * 2014-06-03 2014-08-20 江苏桂铭机械有限公司 Smoke washing comprehensive utilization system equipment
CN105311896A (en) * 2015-12-09 2016-02-10 攀枝花大互通钛业有限公司 Flue dust remover
CN108854358A (en) * 2018-07-10 2018-11-23 马鞍山市如松冶金科技有限责任公司 One kind spraying Integral dust catcher by spraying

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