CN2376988Y

CN2376988Y - Wet foam W-shaped desulfuration dust-collector

Info

Publication number: CN2376988Y
Application number: CN 98225583
Authority: CN
Inventors: 张鸿飞
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-11-09
Filing date: 1998-11-09
Publication date: 2000-05-10
Anticipated expiration: 2008-11-09

Abstract

The utility model relates to a wet foam W-shaped desulfuration dust-collector, which is mainly composed of a casing, an inner cylinder, a W-shaped flow guider, a water circulator, a spiral discharging machine, etc. The structure thereof is compact; the arrangement is reasonable. Fume can order be accelerated by a spiral plate and enter the W-shaped fluid guider; the fume can move from bottom to top in a W type in the fluid guider; the movement from bottom to top can quadratically impact the liquid level with lime cream and foamer; the fume can be subjected to the countercurrent spray of a sparyer. The effect thereof is very good; the dust-collecting efficiency can reach to above 98%; the percentage of desulfurization can reach to 85%; Ringelmann blackness is less than 1 stage; secondary pollution can not happen; the utility model is suitable for desulfurizing and collecting dust for middle and small coal burning boilers and industrial furnaces.

Description

Foam wet method W type desulfurizing dust-collector

The utility model belongs to a kind of wet-desulfurizing dust remover.

The most in the last few years, the hydrofilter that is used for boiler increased gradually, wherein also comprised the S type passage smoke desulfurization dust remover that some are similar.On its basis, the utility model provides the special good foam wet method W type desulfurizing dust-collector of desulfurization and dedusting effect of the brand-new suitable middle and small burn coal boiler of a kind of structure.

Technical solution of the present utility model is: flue gas enters W type air deflector post by spiral plate, and flue gas is made W type secondary impulse liquid level within it; Meanwhile liquid is atomized by fierceness and produces a large amount of foams, react on flue gas again, make in the flue gas grit and sulfide is absorbed and chemical combination, the gas that purifies substantially that will leave W type air deflector at last is subjected to the reverse spray from spray thrower again, so desulfurization and dedusting effect spy is good.

As above-mentioned, the utility model structure mainly is made of housing 3, inner core 13, W type air deflector, water circulation system, spiral discharging machine 2 etc.The middle part of housing 3 is a cylinder, and its top is a round platform, and the bottom is a circular cone.The upper inside wall of cylinder is welded with 3-6 group spiral plate, and inner core 13 places in the outer cylinder, and W type air deflector is settled in inner core 13 bottoms, and it is made up of with center cone 5 water conservancy diversion basin 4 (it is installed in the outer cylinder bottom), kuppe 14, guide ring awl 15.Wherein water conservancy diversion basin 4 is in the outside, it is the basin at a no end, its upper edge is welded on middle part in the housing 3, the central authorities of basin are a center cone 5, awl is high to equate that with basin is high kuppe 14 and guide ring awl 15 are between water conservancy diversion basin 4 and center cone 5, and their shapes are similar, and kuppe 14 is positioned at guide ring and bores 15 tops, welds together with inner core 13 bases at the bottom of its periphery.The top of the top of kuppe 14 and center cone 5 is in together on the plane again, and the end of guide ring awl 15 and the end of center cone 5 are in together on the plane.Be provided with directly over the center cone 5 spray thrower 6, spray thrower above be provided with liquid trap 9, be exhaust outlet 10 above it.The other setting of the lower-left side of outer cylinder has the water of fluid level controller 16 box in one, regularly add milk of lime and foaming agent in wherein.Liquid level is controlled at the below of kuppe 14, and the import of spiral discharging machine 2 is connected the shell conical base.Water pump 1 is positioned at the below of discharging machine 2, and its inlet tube is connected to housing 3 cylinders of water level control line below the slightly outside down, and outlet up penetrates cylindrical shell and joins with spray thrower 6; It and spray thrower 6, liquid trap 9, fluid level controller 16 and pipeline are formed water circulation system.

The utility model has the advantages that: 1, desulfurization and dedusting is effective, because flue gas contacts fully, mixes, adsorbs and dissolve in liquid level, liquid mist, foam at W type air deflector, adds reverse spray; The time of contact of prolong smoke and liquid, increase contact area have improved the desulfurization and dedusting effect as a result.2, non-secondary pollution is in the whole operation process, except discharging the gas that has purified; In discharge, by post processings such as separation, this chemical reagent raw material of calcium sulfite of getting back.3, compact conformation, floor space are little, and this device is vertical, and structure is very compact, and floor space is very little, can move at any time, move.

Fig. 1 master of the present utility model cuts open structure chart.

The number in the figure explanation:

1-water pump, 2-spiral discharging machine, 3-housing

4-water conservancy diversion basin, 5-center cone, 6-spray thrower

7-flue gas spin chamber, 8-spiral plate, 9-liquid trap

10-exhaust outlet, 11-gas approach, 12-air-purifying chamber

13-inner core, 14-kuppe, 15-guide ring awl

16-fluid level controller

Below in conjunction with accompanying drawing the technical solution of the utility model is further described.

Flue gas enters flue gas spin chamber 7 from import 11, down rotate along spiral plate 8, because water conservancy diversion basin 4 is inside contraction from top to bottom, so flue gas flow rate increases gradually, flue gas makes grit and sulfide be absorbed by liquid level with the liquid level of flow velocity impulse basin bottom at a high speed like this; Liquid level is evoked atomizing simultaneously; And produce a large amount of foams and react on flue gas, strengthened the mixing of flue gas and liquid mist and foam, absorption.Thereafter the flue gas that leaves liquid level is pressed into kuppe 14, and under the effect of guide ring awl 15, it makes high speed impulse liquid level for the second time from lower to upper more from top to bottom, and this time flow velocity is bigger.(because circulation area reduces cause) as for the first time, flue gas collides once more, mixes, adsorbs, dissolves in liquid level, liquid mist.Grit behind the secondary impulse in the flue gas and the sulfide overwhelming majority are removed, and air-flow upwards enters clean room 12 along center cone 5, are subjected to the reverse intensive spray of spray thrower 6 in this process again, and a small amount of remaining grit and sulfide major part again are removed.(it are reacted by sulfur dioxide and milk of lime and forms) such as grit and calcium sulfite crystal that sink in the lower cone are periodically discharged by spiral discharging machine 2, and the purifying gas flow that carries the liquid pearl is when liquid trap 9, and the overwhelming majority is captured.

The utility model compact conformation, connection and reasonable arrangement, efficiency of dust collection reach more than 98%, and desulfurization degree reaches 85%, and lingemann blackness is less than 1 grade, non-secondary pollution; It is the preferable selection of middle and small burn coal boiler and Industrial Stoves desulfurizing dust-collector.

Claims

1, a kind of foam wet method W type desulfurizing dust-collector, mainly constitute by housing, inner core, W type air deflector, water circulation system and spiral discharging machine, it is characterized in that W type air deflector is positioned at the housing middle part, it is made up of with center cone water conservancy diversion basin, kuppe, guide ring awl, wherein the water conservancy diversion basin is the basin at a no end in the outside, and its upper edge is welded on the inner walls middle part, the central authorities of basin are a center cone, and awl is high to be equated with basin is high; Kuppe and guide ring awl is between water conservancy diversion basin and middle filling, and their shapes are similar, and kuppe is positioned at guide ring awl top, and the top of the top of kuppe and center cone exists together on the plane again, and the end of the end that guide ring is bored and center cone exists together on the plane.

2, foam wet method W type desulfurizing dust-collector according to claim 1 is characterized in that being welded with 3-6 group spiral plate on the housing wall that flue gas enters.

3, foam wet method W type desulfurizing dust-collector according to claim 1 is characterized in that water circulation system is made up of spray thrower, fluid level controller, liquid trap and water pump; And spray thrower be positioned at the air deflector center cone directly over, liquid trap is positioned at the top of spray thrower again.