CN2070404U

CN2070404U - Automatic high-efficient smoke and dust remover

Info

Publication number: CN2070404U
Application number: CN 90202011
Authority: CN
Inventors: 王铁君
Original assignee: Individual
Current assignee: Individual
Priority date: 1990-02-28
Filing date: 1990-02-28
Publication date: 1991-01-30

Abstract

The utility model relates to an automatic high-efficient smoke and dust removing device composed of a rushing pool dust remover, a fog chamber pool bath dust remover, a draft fan, connecting pipelines, and a collecting liquid pool which is provided with an ash removing transportation chain plate. The smoke air containing dust or toxicant flows along a U-shaped track in the rushing pool dust remover, and dust particles are separated from the air under the action of gravity, inertia force, and centrifugal force, and are collected by collecting liquid. The smoke air after being done primary dust removing enters the fog chamber pool bath dust remover to be mixed with the forward current of the fog air current of the collecting liquid, and a bubble in the collecting liquid further collects the dust or toxicant in the smoke air to carry out secondary dust removing. The dust or sinking materials collected automatically discharge outside the collecting liquid pool from the ash removing transportation chain plate. The automatic high-efficient smoke and dust removing device has the advantages of a gravity dust remover, an inertia force dust remover, a centrifugal dust remover, and a wash type dust remover, and the dust removing rate of the automatic high-efficient smoke and dust removing device is 95-99.8%.

Description

Automatic high-efficient smoke and dust remover

The utility model relates to a kind of boiler flue and other dust-ladens or contains the device for eliminating smoke and dust of Toxic waste gas dedusting, purification use.

At present, the dust-laden that produces in the industry production such as boiler flue and metallurgy, chemical industry, plating, contain that Toxic waste gas carries out dedusting, the device for eliminating smoke and dust that purify to use has gravity settling chamber, inertial dust separator, centrifugal deduster, washing type deduster, filtration dust catcher, electrostatic precipitator and sound wave dust separator etc.Sound wave dust separator, generally seldom uses except that the occasion of specific (special) requirements is used because cost, operating cost height, noise are big.Gravity settling chamber, inertial dust separator are bulky, and floor space is big, and efficiency of dust collection is low, and dustiness is big in the flue gas after the dedusting, and environment is still had suitable contamination, thereby is replaced by the deduster of other types gradually.Use centrifugal dust collectors such as comparatively general C type deduster, twin-stage spiral deduster, efficiency of dust collection is 50-90%,, the dust of the fine particle that flue gas is contained can not be removed effectively.During the deduster dedusting, when dustiness was big in the flue gas, the dust removal efficiency of deduster can descend, and the stability and the reliability of dust removing effects are relatively poor.In addition, this class deduster normally is used for the smoke abatement and dust control of medium and small boiler.Washing type dedusters such as pipe type water film deduster, venturi tube wet dust collector, water consumption is big, and the sewage of generation need be handled and can discharge, so dedusting operating cost height is uneconomical, deduster easily stops up, and needs often cleaning, the operation inconvenience.Moreover operation easily produces fluctuation, operation stability is poor, and dust removing effects is difficult for guaranteeing.Though bag type filtering deduster efficiency of dust collection height, reach more than 99%, but running resistance is big, the equipment manufacturing cost height, and floor space is big.Filter bag cleans, changes frequent, because bag is stuck with paste in easy generation under non-refractory and the high humidity situation, uses so be unsuitable for the smoke abatement and dust control of high temperature, high humidity ash-laden gas.Electrostatic precipitator device structure complexity, the cost height is invested greatly, need be consumed a large amount of electric energy when moving, thereby is difficult to extensive employing.A common weak point of existing various types of dedusters is that deduster removing dust stratification is manually-operated, and labour intensity is big, and operating condition is abominable, is unfavorable for operation and uses.

The purpose of this utility model provides a kind of efficiency of dust collection height, the dust of big or middle particle in the flue gas can be removed, the dust of fine particle can be removed effectively again, both having can be used for various boiler flue smoke abatements and dust controls uses, also can be used for other dust-ladens or contain the Toxic waste gas dedusting, purified treatment is used, and can remove the automatical and efficient device for eliminating smoke and dust of dust stratification automatically.

Automatical and efficient device for eliminating smoke and dust has the flue gas import and export by constituting towards the pond dust remover roof towards pond deduster, air-introduced machine, fog chamber's bathing in a common bathing pool deduster, the capture liquid pool that has the ash disposal transporting chain plate and connecting pipe, the bottom is uncovered, deduster places and captures liquid pool, and the bottom is sealed by trapping solution.Flue gas is by entering towards the pond deduster perpendicular to the admission line that captures liquid level.Be connected with the air-introduced machine air inlet by pipeline towards deduster gas outlet, pond, the air-introduced machine gas outlet is connected with fog chamber's bathing in a common bathing pool deduster air inlet pipe by pipeline.Fog chamber's bathing in a common bathing pool deduster air inlet is positioned at the top, fog chamber, and there is sprayer unit the fog chamber, and gas vent is arranged at the bottom, fog chamber.Bottom, fog dispersal chamber is uncovered, and fog chamber's bathing in a common bathing pool deduster places and captures in the liquid pool, and bottom, fog dispersal chamber is sealed by trapping solution.Gas vent is arranged at fog dispersal top, chamber, and gas vent is connected with the emptying chimney by pipeline.

Towards pond deduster air inlet; the place, gas outlet is fixed with deflector; flue gas stream flows along the U-shaped running orbit in deduster, and the dust of bulky grain dust and part larger particles enters with flow separation under impulse force that flue gas produces when the U-shaped track flows and centrifugal action and is caught in the trapping solution under liquid collecting captures in the flue gas.The fog chamber of fog chamber's bathing in a common bathing pool deduster is positioned at the fog dispersal chamber, and it is made of spray chamber and bathing in a common bathing pool device two parts, and top is spray chamber, and the bottom is the bathing in a common bathing pool device, and gas vent is arranged on the bathing in a common bathing pool device diapire and is immersed in trapping solution.The fog dispersal chamber is an annular compartment, on the roof face gas vent is arranged, and the bottom is uncovered and is sealed by trapping solution.Sprayer unit is by nozzle, liquid pump, and filter and liquid-transport pipe-line constitute.Nozzle is loaded in the spray chamber, the fog stream and the flue gas following current that enters deduster of nozzle ejection.Mix steam flow by gas vent bubbling in trapping solution, the gas behind the bubbling enters the fog dispersal of fog dispersal chamber, and the gas after the fog dispersal is by the gas vent venting.

Further improving of fog chamber's bathing in a common bathing pool deduster is to be positioned on the indoor smoke inlet pipe section of fog dispersal to have the bypass flue to communicate with the deduster gas outlet, on the bypass flue electromagnetic valve is housed, electromagnetic valve is closed when boiler exhaust gas, electromagnetic valve is opened during the boiler anneal, and a small amount of flue gas that the burner hearth burning produces enters chimney by bypass duct.

When utilizing automatical and efficient device for eliminating smoke and dust that boiler flue is carried out smoke abatement and dust control, the boiler ash-laden gas is entered in the deduster of pond by the admission line perpendicular to deduster bottom sealing liquid level, gas turns direction gas vent on liquid level flows under the deflector effect, locate once more diverted flow to the gas outlet in the gas outlet, thereby flue gas is flowing and is leaving deduster along the U-shaped track in the deduster of pond.Flue gas produces impulse force and centrifugal force when the U-shaped track flows; enter with flow separation under the impulse force that the bulky grain dust in the flue gas and the dust of part larger particles produce when the operation of gravity own, air-flow, the centrifugal action and be caught in the trapping solution under liquid collecting captures, thereby make flue gas carry out the dedusting first time.Flue gas leaves towards the pond deduster after air-introduced machine is entered in the spray chamber of fog chamber's bathing in a common bathing pool deduster by fog chamber's bathing in a common bathing pool deduster air inlet pipe.The trapping solution mist steam flow of nozzle ejection and flue gas following current and mixed flow are to bathing in a common bathing pool device bottom in the spray chamber, from bottom gas vent bubbling to trapping solution, realize the purification process that atomizing, cohesion and chemical reaction carry out simultaneously, thus with in the flue gas, short grained dust or precipitation capture.Leave trapping solution, the flue gas that is entrained with the trapping solution droplet enters the fog dispersal of fog dispersal chamber.The fog dispersal chamber in because the collision, cohesion, droplet becomes the big drop that forms and further captures the fine dusts particle that collection at large gets off simultaneously, drop or fall in the trapping solution in gravity effect own, or captured and then flow in the trapping solution by the wall liquid film, make the further dedusting of flue gas.Gas after the fog dispersal enters chimney by the gas outlet and then enters in the atmosphere.

When carrying out boiler flue smoke abatement and dust control, trapping solution available water or alkaline trapping solution, carry out other dust-ladens or contain the dedusting of Toxic industrial waste gas or when purifying, trapping solution can be according to dust character or Toxic character, adopt corresponding trapping solution, trapping solution captures the dust that gets off or chemical reaction and is deposited in the gravity effect and is lowered on the ash disposal transporting chain plate that captures at the bottom of the liquid pool, along with carrier bar slowly motion continuously ash is removed away from collecting tank gradually.

Automatical and efficient device for eliminating smoke and dust had both had the effect and the advantage of gravity, inertia and centrifugal deduster, had the effect and the advantage of washing type deduster again, and had eliminated the weak point that both exist.The efficiency of dust collection height is 95-99.8%.The consumption liquid measure is few during dedusting, and device structure is simple, and volume is little, and cost is low.Automatically ash disposal, simple to operate, control has improved operating condition easily, has reduced labour intensity significantly.The boiler that is suitable for various models when being used for smoke abatement and dust control uses, when being used to contain the processing of Toxic waste gas purification, as long as select suitable trapping solution to realize, thereby applied widely.

Accompanying drawing is example structure figure of the present utility model, further specifies the utility model below in conjunction with accompanying drawing.

Fig. 1 is the structure chart of automatical and efficient device for eliminating smoke and dust.

Fig. 2 is the structure chart that dashes the pond deduster of automatical and efficient device for eliminating smoke and dust.

Fig. 3 is fog chamber's bathing in a common bathing pool deduster structure chart of automatical and efficient device for eliminating smoke and dust.

As shown in Figure 1, pond deduster (2) air inlet that dashes of automatical and efficient device for eliminating smoke and dust is connected with boiler (1) exhaust opening (3) by the admission line (4) perpendicular to the capture liquid level, be loaded in the capture liquid pool (23) towards the pond deduster, the deduster bottom is uncovered to be sealed by trapping solution (22).Be connected with air-introduced machine (6) by pipeline towards deduster gas outlet, pond, the valve (5) of regulating air inflow arranged on the pipeline to regulate, to change the exhaust gas volumn that flows into.The air-introduced machine gas outlet is connected with fog chamber's bathing in a common bathing pool deduster air inlet pipe (11) by pipeline (7), and gas approach (12) is positioned at spray chamber diffuser (16) top of fog chamber's bathing in a common bathing pool deduster.The nozzle of the trapping solution sprayer unit that is made of nozzle (15), woven hose (18), woven hose pump (19) filter (20) is loaded in the spray chamber, the trapping solution mist steam flow of nozzle ejection mixes with the flue gas following current by the diffuser (16) that atomizes and flows to bottom the bathing in a common bathing pool device (10), atomize the purification process that cohesion and chemical reaction carry out simultaneously with realization by the bubbling in absorption liquid of the jet trunnion (9) on the bathing in a common bathing pool device diapire face.Reliable for guaranteeing, effectively dust arrestment is got off, jet trunnion preferably stretches into the following 10-50 millimeter of liquid level.Flue gas behind the bubbling leaves the trapping solution rising and enters in the annular fog dispersal chamber (17), and flue gas further captures the dust in the gas simultaneously in the indoor fog dispersal of fog dispersal.Gas after the dedusting fog dispersal is discharged by top vent (13), and then by chimney (14) emptying.The dust that is captured down or be deposited in sedimentation in the trapping solution and sink on the ash disposal transporting chain plate (21) that captures liquid pool (23) bottom, transporting chain plate drives down at drive unit (24) and slowly turns round continuously, and plaster promptly constantly is discharged from outside the pond.Capture liquid pool liquid level alarm (8) is housed, to monitor liquid level in the pond, trapping solution reduces in the pond, sends indication and alarm when liquid level drops to a certain height, so that in time replenish trapping solution.

Towards pond deduster structure as shown in Figure 2, towards the pond deduster is one to have roof face (27), and the bottom is uncovered casing, and deduster is fixed on by fixed bearing mount pad (29) and captures on the liquid pool, the bottom is immersed in the trapping solution, and the deduster bottom is sealed by trapping solution.Casing can be Any shape, square, cuboid, cylinder all can, but be preferably shape shown, promptly top is trapezoidal, the bottom is a cuboid.Gas approach (25) and exhanst gas outlet (30) are arranged on the casing roof face.Be fixed with deflector (26) and (28) on the roof face near contiguous casing center line one side at flue gas import and export place, it is mobile along the U-shaped flow trace that flue gas is entered behind the deduster.Can be welded into steel plate towards the pond deduster.

Pond, fog chamber deduster structure as shown in Figure 3, deduster shell (39) is one to have roof face (40), the bottom is uncovered casing.Deduster has fixed bearing mount pad (38) to be fixed on the capture liquid pool, and bottom half is immersed in the trapping solution (22), with the uncovered sealing in bottom.Gas vent (13) is arranged on the casing roof face, and casing can be Any shape, but is preferably shape shown, and promptly top is the cylinder bodily form, carries out the transition to cuboid downwards gradually.The fog chamber is by diffuser (16), cylindrical section (35) and receipts sections (37) constitute, the bottom, fog chamber is bathing in a common bathing pool device (10), bathing in a common bathing pool device bottom has gas vent trunnion (9) to stretch in the trapping solution, the fog chamber is positioned at the centre of fog dispersal chamber, be connected by positioning and fixing plate (31) stationary positioned and with outer casing inner wall, shell and fog chamber surround annular fog dispersal chamber (17).Be to guarantee the reliability of deduster work, jet trunnion end is controlled within the fog dispersal chamber body, i.e. structure as shown.The fog chamber can be Any shape, but best structure as shown, top is that diffuser is a frustum, the middle part is that cylindrical the receipts gradually carries out the transition to the bottom cuboid.Nozzle (15), gas approach (12) are positioned at the spray chamber top.Nozzle, infusion pump (19), liquid-transport pipe-line (1(18), filter (20) constitute fog chamber's sprayer unit.Fog chamber's bathing in a common bathing pool deduster air inlet pipe is positioned at fog dispersal top, chamber, has bypass flue (34) to be communicated with gas vent.Electromagnetic valve (33) is arranged on the bypass flue, during deduster smoke abatement and dust control, the electromagnetic valve closure, electromagnetic valve is opened during the boiler anneal, have the wicket (32) of dismounting electromagnetic valve (33) usefulness and big window (36) fog chamber's bathing in a common bathing pool deduster that folding dress nozzle is used to make with steel plate on the roof face (40), also available other materials is made.

Claims

1, a kind of device for eliminating smoke and dust, particularly a kind of automatical and efficient device for eliminating smoke and dust, include air-introduced machine and connecting pipe, it is characterized in that having towards the pond deduster, fog chamber's bathing in a common bathing pool deduster and the capture liquid pool that has the ash disposal transporting chain plate, saidly have the roof face towards deduster top, pond, the bottom is uncovered, place the capture liquid pool towards the pond deduster, the bottom is sealed by trapping solution, flue gas is connected with said air-introduced machine air inlet by pipeline towards deduster gas outlet, pond by entering towards the pond deduster perpendicular to the admission line that captures liquid level, and the air-introduced machine gas outlet is connected with fog chamber's bathing in a common bathing pool deduster air inlet pipe by pipeline, fog chamber's bathing in a common bathing pool deduster air inlet is positioned at the top, fog chamber, there is sprayer unit the fog chamber, and gas vent is arranged at the bottom, fog chamber, and bottom, fog dispersal chamber is uncovered, fog chamber's bathing in a common bathing pool deduster places and captures liquid pool, and gas vent stretches in the trapping solution.Bottom, fog dispersal chamber has gas vent by the trapping solution sealing on the roof face of fog dispersal chamber, and gas vent is connected with chimney by pipeline.

2, by the described automatical and efficient device for eliminating smoke and dust of claim 1, it is characterized in that deflector being arranged towards deduster flue gas import and export place, pond, fog chamber's bathing in a common bathing pool deduster air inlet pipe is positioned at has bypass duct to be communicated with fog dispersal gas outlet, chamber on the indoor pipeline section of fog dispersal, electromagnetic valve is arranged on the bypass duct, electromagnetic valve closure during smoke abatement and dust control, electromagnetic valve is opened during the boiler anneal.