CN2206410Y - Flue-gas self-excitation water desulfurization dust remover - Google Patents

Abstract

The utility model relates to a novel boiler flue gas self-excitation water desulfurizing and dust removing device, comprising two arc plates 4 and 5 in a shell body, a partition board 6, a moisture coagulator (8) arranged at the lower part of an air outlet 7, a water tank (9) and a bucket scraping dust removing and conveying device 70. Flue gas can flow downwards via a diffusion chamber 30 to impact a washing water tank 50 to stir and atomize liquid, and the flue gas is further processed via a drift condensing chamber 40 and the moisture coagulator to complete desulfurization and dust removal. The utility model has small size, convenient installation, production and use, no secondary pollution, little water consumption and economic operation, and the exhausted flue gas has low quantity of water.

Description

Flue-gas self-excitation water desulfurization dust remover

The utility model relates to the boiler smoke dust arrester, what promptly relate to is Int.ClF23J 15/00 technical products.

The boiler smoke dedusting technology is an application technology very widely, and it mainly is in order to reduce the pollution to environment.At present boiler smoke dedusting technology product of all kinds have a variety of, only disclosed boiler smoke dedusting technology just has hundreds of in the Chinese patent literature, along with the raising of society to the dust removing effects requirement, make a general survey of the development of boiler smoke dedusting technology, particularly in recent years, the boiler dusting technology more is to adopt wet dust removal method, for example whirlwind water film type, impact water bath formula or the like.In wet boiler flue gas ash removal technology, also there is the flue gas of employing to impact tank, makes water evoke the flue gas ash removal technology of flue gas being carried out desulfurization and dedusting.' efficient granite duster ' as the CN92217322.CN91212879 patent disclosure, it includes and impacts dust-settling compartment, water-bath dust-settling compartment, ash discharge tank formation, be provided with vertical partition plate in the impact dust-settling compartment and form flue gas impact flow channel, water-bath dust-settling compartment bottom is identical with the impact dust-settling compartment, its middle part is provided with moisture film or water-bath web plate, exhaust outlet is arranged at top, and the ash discharge tank communicates bottom impacting dust-settling compartment and water-bath dust-settling compartment.This deduster, flue gas enters the downward water surface that impacts in the impulse chamber from impacting road one side, mixes contacting with the water smoke that evokes, and carries out one-time dedusting, and flue gas enters the indoor final dusting that carries out of water-bath from impacting the road opposite side then, and dustiness carries discharge by current.These two patented technology versions are basic identical, and different is that latter's smoke air inlet adopts the Wen's jet pipe that is provided with the high-pressure atomization sprinkler head, and heavy grey tank is the pond, ground.The deficiency of this dust arrester is the dirty grey pulp-water of discharging, causes secondary pollution, and equipment volume is huge, and floor space is big, and water consumption is big, and its suitable large-sized industrial kiln and thermal power plant boiler are used, and are not suitable for general boiler applications.The CN90226969 patent disclosure a kind of impulse cyclone dust catcher, its structure is the tapered cylindrical shell in a bottom, be provided with water circulating pump, cylindrical shell top is provided with the smoke inlet pipe that blows into to oblique below, at the bottom and the smoke-intake pipe mouth place of cylindrical shell circulating water outlet and shower nozzle is set respectively.Its flue gas by impacting the cylindrical shell bottom liquid level and under the effect of injection water, carry out dedusting.Its structure is relatively simple, but it contains the cigarette aqueous vapor and directly discharged, the sedimentation fully of the flue dust in flue gas and aqueous vapor dedusting, and it is very big that the water yield is taken in exhaust, reduces air-introduced machine service life, so it is also also imperfect.

The purpose of this utility model is at the deficiencies in the prior art, provides a kind of simple in structure, manufactures easyly, and volume is less, the flue gas self-excitation water desulfurizing dust-collector of good dedusting effect.A kind of flue gas self-excitation water desulfurizing dust-collector especially for the middle and small burn coal boiler use is provided.

The utility model deduster mainly is made of flue gas diffuser casing, washing reaction groove, vortex chamber, drift condensing chamber, aqueous vapor cohesion drop catcher and ash disposal conveying device, liquid level equilibrium cistern device.Its technical pattern is, it has the side of being, the top bodily form, the bottom is the housing of taper, offer smoke air inlet in this housing upper end one side, in housing, be provided with the flue gas eddy flow passage that is made of two arcs is installed, the arrangement that misplaces relatively up and down of the concave surface of two arcs, form S shape passage, the upper end of last arc is connected by dividing plate with the upper end of housing, corresponding gas approach, at the opposite side that is separated into by dividing plate and arc, set out gas port on the upper surface of housing, setting is equipped with aqueous vapor cohesion drop catcher below the gas outlet, and the bottom of housing is the cleaning dust tank, in the bottom of housing arranged outside the cistern device of stable equilibrium's liquid level is installed, connects at the bullet lower port place of housing to be provided with and be equipped with one and scrape bucket type ash disposal conveying device.This flue gas self-excitation water desulfurizing dust-collector is to make the grit of flue gas and sulfide transfer to process in the liquid from gas, reaches the purpose that dust-removal and desulfurizing purifies flue gas by grit inertial collision impact liquid level, diffusion, drift, cohesion and neutralization reaction in the air-flow.

Fig. 1 is the utility model example structure schematic diagram.

Fig. 2 is the left view of Fig. 1.

Fig. 3 is the vertical view of Fig. 1.

Fig. 4 is another example structure schematic diagram of the utility model.

Fig. 5 is the left view of Fig. 4.

Fig. 6 is the vertical view of Fig. 4.

The utility model is described in further detail below in conjunction with accompanying drawing.

The utility model can be to realize as accompanying drawing 1-3 illustrated embodiment.It is by the side of being, the top bodily form, the bottom is the housing 1 of taper, side upper end at this housing 1 offers smoke air inlet 3, middle and lower part horizontal direction setting is equipped with two arcs 4 in housing 1,5, two arcs 4, the arrangement that misplaces relatively up and down of 5 concave surface, form S shape vortex chamber passage 20, the upper end of last arc 4 is connected by dividing plate 6 with the upper end 11 of housing 1, arc 4,5 and dividing plate 6 be lateral plates 12 before and after extending in the housing in the horizontal direction, on 13, corresponding gas approach 3 sets out gas port 7 on the upper surface 11 of the opposite side housing 1 that is separated into by dividing plate 6 and arc 4, setting is equipped with drop catcher 8 below gas outlet 7, interior smoke air inlet one side by dividing plate 6 and 4 separations of last arc of housing is a flue gas diffuser casing 30, opposite side is that gas outlet one side is drift condensing chamber 40, the bottom dress water of housing, be cleaning dust tank 50, in the lower end of housing 1 arranged outside the cistern device 9 of stable equilibrium's tank 50 liquid levels is installed, the ash hole place, bullet lower end below housing 1 connects to be provided with and is equipped with one and scrapes bucket type and carry ash handling equipment 70 to constitute.

The utility model can also be to realize as accompanying drawing 4-6 illustrated embodiment.It is by the side of being, the top bodily form, the bottom is the housing 1 of taper, in the middle of a upper lateral part of this housing 1, offer smoke air inlet 3, the setting of the middle part of middle and lower part symmetry horizontal direction is equipped with two groups of arcs 4 in housing 1,4 ', 5,5 ', last arc 4,4 ' and arc lower plate 5, the arrangement that misplaces relatively up and down of 5 ' concave surface, form S shape vortex chamber passage 20,20 ', last arc 4,4 ' upper end is connected by the join partition 6 that raises up, smoke air inlet 3 is in the join partition 6, arc 4,4 ', 5,5 ' and join partition 6 be lateral plates 12 before and after extending in the housing in the horizontal direction, on 13, coupled dividing plate 6 reaches and goes up arc 4 in the housing, 4 ' the both sides cavity 40 that is separated into, 40 ' is the drift condensing chamber, on 11 middle parts, upper surface of housing 1, set out gas port 7, in the top setting of drift condensing chamber drop catcher 8 is installed, 8 ', coupled dividing plate 6 and last arc 4 in the housing, 4 ' the smoke air inlet chamber of separating is a flue gas diffuser casing 30, the bottom dress water of housing is cleaning dust tank 50, in the lower end of housing 1 arranged outside the cistern device 9 of stable equilibrium's tank 50 liquid levels is installed, the ash hole place, bullet lower end below housing 1 connects to be provided with and is equipped with one and scrapes bucket type and carry ash handling equipment 70 to constitute.This structure is fit to remove the bigger deduster of dust quantity.

The aforementioned said drop catcher 8,8 ' of the utility model is the shutter device that lamellar constitutes, be that the lamellar interplanar of S shape is every being arranged to form preferably by some vertical cross-sections, its preferably lath be fixed on the framework and constitute, be installed in the housing 1 by the framework overall fixed, so that installation and maintenance.

The aforementioned said cistern device 9 of the utility model is one to have the location water tank of water-level control apparatus such as ball-cock assembly, and the delivery port of this water tank lower end is through the lower end conical section communications and liaison of pipeline 91 with housing 1.

The aforementioned said bucket type ash disposal conveying device 70 of scraping of the utility model is by long cylindrical chassis 71, the axle 72,73 at two ends within it is installed, be installed in sprocket wheel 74,75 and chain 76 on the axle, place the scraper 77 on the chain, drive motor and deceleration device 78,79 formations that main shaft rotates.

When the utility model is used, under the air-introduced machine effect, flue gas enters in the flue gas diffuser casing 30 that housing inner route clapboard 6 and S shape arc plate 4 be separated into from air inlet 3, flow downward and impact the washing tank 50 that contains limewash of lower housing portion, make liquid be evoked atomizing, make the grit in the flue gas and sulfide is absorbed and chemical combination, bigger grit is directly captured dedusting at this, more tiny grit enters vortex chamber 20 with air-flow, make flue gas and the further abundant blended absorbent of water smoke through S shape passage, flue gas rushes at drift condensing chamber that the water surface enters opposite side depositing dust once more once more under S shape channeling then, contain the drop catcher 8 of passing through on the steam of seldom measuring tiny flue dust at the drift condensing chamber and fallen by the integrated drop of cohesion, gas is discharged through the gas outlet 7 of housing upper end.

The utility model volume and floor space are little, make easy to installly, and efficiency of dust collection reaches 96%, and desulfurization degree reaches 78%, and lingemann blackness does not have secondary pollution less than 1 grade, and it is very little that the flue gas of discharge is taken the water yield, and water consumption is little, economical operation.

Claims (6)

1, flue gas self-excitation water desulfurizing dust-collector is characterized in that being made of flue gas diffuser casing, washing reaction groove, vortex chamber, drift condensing chamber, aqueous vapor cohesion drop catcher and ash disposal conveying device, stable equilibrium's liquid level cistern device; Its structure is for there being the side of being, the top bodily form, the bottom is the housing of taper, offer smoke air inlet in this housing upper end one side, in housing, be provided with the flue gas eddy flow passage that is made of two arcs is installed, the arrangement that misplaces relatively up and down of the concave surface of two arcs, form S shape vortex chamber passage, the upper end of last arc is connected by dividing plate with the upper end of housing, corresponding gas approach, at the opposite side that is separated into by dividing plate and arc, set out gas port on the upper surface in the housing, setting is equipped with aqueous vapor cohesion drop catcher below the gas outlet, the bottom of housing is the cleaning dust tank, in the bottom of housing arranged outside the cistern device of stable equilibrium's liquid level is installed, and connects at the bullet lower port place of housing to be provided with to be equipped with one and to scrape bucket type ash disposal conveying device.

2, deduster according to claim 1, it is characterized in that: it is by the side of being, the top bodily form, the bottom is the housing (1) of taper, side upper end at this housing (1) offers smoke air inlet (3), middle and lower part horizontal direction setting is equipped with two arcs (4 in housing (1), 5), two arcs (4,5) arrangement that misplaces relatively up and down of concave surface, form S shape vortex chamber passage (20), the upper end of last arc (4) is connected by dividing plate (6) with the upper end (11) of housing (1), arc (4,5) and dividing plate (6) be lateral plates (12 before and after extending in the housing in the horizontal direction, 13) on, corresponding gas approach (3) sets out gas port (7) on the upper surface (11) of the opposite side housing (1) that is separated into by dividing plate (6) and arc (4), setting is equipped with drop catcher (8) below gas outlet (7), interior smoke air inlet one side by dividing plate (6) and last arc (4) separation of housing is flue gas diffuser casing (30), opposite side is that gas outlet one side is drift condensing chamber (40), the bottom dress water of housing is cleaning dust tank (50), in the lower end arranged outside of housing (1) cistern device (9) of stable equilibrium's tank (50) liquid level is installed, the ash hole place, bullet lower end below housing (1) connects to be provided with and is equipped with one and scrapes bucket type and carry ash handling equipment (70) to constitute.

3, deduster according to claim 1, it is characterized in that: it is by the side of being, the top bodily form, the bottom is the housing (1) of taper, in the middle of a upper lateral part of this housing (1), offer smoke air inlet (3), the setting of the middle part of middle and lower part symmetry horizontal direction is equipped with two groups of arcs (4 in housing (1), 4 ', 5,5 '), last arc (4,4 ') and arc lower plate (5,5 ') arrangement that misplaces relatively up and down of concave surface, form S shape vortex chamber passage (20,20 '), last arc (4,4 ') upper end is connected by the join partition that raises up (6), smoke air inlet (3) is in the join partition (6), arc (4,4 ', 5,5 ') and join partition (6) be lateral plates (12 before and after extending in the housing in the horizontal direction, 13) on, coupled dividing plate (6) reaches and goes up arc (4 in the housing, 4 ') the both sides cavity (40 that is separated into, 40 ') be the drift condensing chamber, on 11 middle parts, upper surface of housing (1), set out gas port (7), at drift condensing chamber (40,40 ') top is provided with drop catcher (8 is installed, 8 '), coupled dividing plate (6) and last arc (4 in the housing, 4 ') the smoke air inlet chamber of Fen Geing is flue gas diffuser casing (30), the bottom dress water of housing is cleaning dust tank (50), in the lower end arranged outside of housing (1) cistern device (9) of stable equilibrium's tank (50) liquid level is installed, the ash hole place, bullet lower end below housing (1) connects to be provided with and is equipped with one and scrapes bucket type and carry ash handling equipment (70) to constitute.

4, according to claim 1 or 2 or 3 described dedusters, it is characterized in that: said drop catcher (8,8 ') is the shutter device that lamellar constitutes, preferably by some vertical sections lamellar interplanar that is S shape every being arranged to form.

5, according to claim 1 or 2 or 3 described dedusters, it is characterized in that: said cistern device (9) is one to have water-level control apparatus---the location water tank of ball-cock assembly.

6, according to claim 1 or 2 or 3 described dedusters, it is characterized in that: the said bucket type ash disposal conveying device (70) of scraping is by long cylindrical chassis (71), the axle at two ends (72,73) within it is installed, be installed in sprocket wheel (74,75) and chain (76) thereof on the axle, place the scraper (77) on the chain, drive motor and deceleration device (78,79) formation that main shaft rotates.

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