CN2175031Y

CN2175031Y - Double-ring flushing and stirring type dust-remover

Info

Publication number: CN2175031Y
Application number: CN 93247151
Authority: CN
Inventors: 李德国; 詹全仁
Original assignee: Qinhuangdao Metallurgy Desing & Research Academy Ministry Of Metallurgical Indu
Current assignee: Qinhuangdao Metallurgy Desing & Research Academy Ministry Of Metallurgical Indu
Priority date: 1993-12-08
Filing date: 1993-12-08
Publication date: 1994-08-24
Anticipated expiration: 2003-12-08

Abstract

The utility model relates to a double ring flushing and stirring type dust remover which belongs to a wet type dust filtering purifying device used in the industry. The utility model is suitable for the fume purification of various kilns. The utility model is characterized in that a double ring S-shaped water sealing channel structure, a mechanism with direct connection between a water containing conical ash bucket and a dredge, and an external water supply circulating system composed of an overflow box, a medicine adding and water supply box, a circulating water pump and a sedimentation tank are arranged on the communicating rotary place between a smoke inlet channel and a smoke outlet channel. The dust remover is also provided with the water containing ash bucket, the antifreezing heat insulating layer structure of the dredge and an ash stop plate used for overcoming the overly dense deposit of the ash. Compared with a dust remover in the same type, the utility model has the advantages of small size, low water consumption and no pollution. The manufacturing cost is decreased by 30%, and the purifying efficiency can reach more than 98 %.

Description

Double-ring flushing and stirring type dust-remover

The utility model relates to a kind of deduster, is a kind of industrial wet type dust filtering purification device.

Along with industrial continuous expansion and develop rapidly, more and more higher requirement is proposed also for the udst separation of industrial gas emission.Traditional cyclone dust collector, its purification efficiency generally between 85-90%, can not satisfy emission request far away.The multicyclone that rises again in recent years, its actual dust-collecting efficiency also is no more than 94%, and for the city that discharge standard is had relatively high expectations, perhaps the higher dirt gas of dust content can not satisfy emission request.The electrostatic precipitator dust-collecting efficiency can reach more than 99%, though can satisfy emission request, cost is too high, is difficult for applying in the medium small boiler gas cleaning.Wet scrubber of the prior art, dust collection rate can satisfy emission request in general between 90-99%, but because still there are some problems in its design feature separately:

1, the granite cyclonic water film deduster of band Venturi tube: 1. water consumption is many, every processing 1000m ³More than the air quantity water consumption 30kg, and the exhaust emission of water can't solve; If 2. adopt the system that recycles of water, though water consumption has reduced, need to be equipped with huge sedimentation basin and water circulating pump, its investment is multiplied.And exist power consumption many, weak point such as floor space is big; 3. staticize efficient generally between 90-96%, area or the bigger dusty gas of dust content higher for discharge standard still can not satisfy emission request.

2, CCJ one type disintegrating scrubber: 1. the impulse plate is the yi word pattern structure, and gas treatment ability is low, and the deduster volume is bigger than normal, and steel consumption is higher; 2. CCJ one type deduster has two kinds of ash methods, and a kind of is permanent current ability of swimming ash method, promptly connects ash band water and discharges together, and not only water consumption is more but also by the polluted water of dirt gas also discharging nowhere; Another kind is the ash method of band mud digging machine and since soot particle more carefully in water deposition closely knit, often have and stop up and press the phenomenon of taking off son to take place; 3. filter dirt water freezing when north cold area uses influences its operate as normal.

The purpose of this utility model is to overcome above-mentioned weak point of the prior art, and provides a kind of volume little, and cost is low, the purification efficiency height, and water consumption is few, free of contamination dicyclo disintegrating scrubber.

The technical solution of the utility model is: a perpendicular inner barrel of putting is set, and the lower end of its cylindrical shell is provided with inner ring body and the outer ring body that constitutes water seal S shape passage, and two ring bodies below is provided with tapered appearance water ash bucket, and the ash bucket end opening connects a chain scraper type mud digging machine.Be nested with an ectosome tube outside inner barrel, the upper side of this cylindrical shell is provided with a gas outlet, and the outer cylinder body upper end closed also links to each other with the inner barrel barrel.Lower end and ash bucket are suitable for reading to join.Outer cylinder body and ash bucket are placed on the bearing support, and the lower end of bearing support is placed in one and has on the basis of precipitating the pond.Both sides at tapered appearance water ash bucket are respectively arranged with spill box and Cistern with chemicals adding means, are provided with overflow valve in the spill box and are connected to overflow pipe to be connected to the precipitation pond, and the dosing feed-tank has water circulating pump and feed-tank is logical with the precipitation water by return pipe.

Also comprise in the technical solution of the utility model: be provided with an ash resistanting plate that has a uniform through hole below tapered appearance water ash bucket ash hole, its horizontal is phoresied between the chain the mud digging machine belt scraping plate.The shell of tapered appearance water ash bucket and chain scraper type mud digging machine is equipped with insulating composite layer.

Accompanying drawing 1 is this dicyclo disintegrating scrubber structural representation.

Below in conjunction with drawings and Examples the utility model is further described: inner barrel 1 perpendicular putting, the upper end joins as air inlet with flue, and be provided with water and drench shower nozzle, the lower end connect an inner ring body 3 and with inner ring body 3 corresponding

outer ring bodies

4,4 liang of interannulars of its ring body 3 and ring body form a ring-type water seal S shape passage, on its cylindrical shell 1 lateral wall water fender are being installed above the S shape passage.Two ring bodies below is provided with circular cone and describes water ash bucket 7, and ash bucket 7 end openings and chain scraper type mud digging machine 6 join.Be nested with an outer cylinder body 2 outside inner barrel 1, the upper side of its cylindrical shell 2 is provided with a gas outlet 14.Cylindrical shell 2 upper ends link to each other by a cover closure and with cylindrical shell 1 barrel, lower end and 7 suitable for reading joining of ash bucket.Outer cylinder body 2 and ash bucket 7 place on the bearing support 11.The lower end of bearing support 11 is fixed on one and has on the basis 9 of precipitating the pond.Be respectively arranged with spill box 5 and dosing feed-tank 13 in the both sides of ash bucket 7.Be provided with overflow valve and automatic water level control valve in the spill box.Be connected to overflow pipe on the overflow valve and be connected to the precipitation pond, control valve and feed pipe join.Be provided with solid drugs holder grid in the dosing feed-tank, be provided with water circulating pump 10 below the water tank, be connected to circulating water pipe on the water pump 10 and be communicated with dosing feed-tank and precipitation pond respectively.

For avoiding the sedimentation of dirt ash too closely knit, cause dust stratification to stop up and press the generation of taking off sub-phenomenon, below ash bucket 7 ash holes, be provided with one and have the grey through hole of uniform leakage ash resistanting plate 8 is arranged, plate 8 horizontal are between mud digging machine scraper plate driving chain.

For make this deduster in the winter time cold district normally move, its ash bucket 7 and mud digging machine 6 shells are equipped with insulating composite layer 12.

The course of work of the utility model dicyclo disintegrating scrubber is as follows: after dusty gas enters deduster by air inlet, impact the water surface downwards along inner barrel 1, after entering inner ring body 3 with the speed of 18-35m/s, S shape passage revolution along inner ring body and outer ring body 4 formations makes progress, and forms the strong water jet that contains in the exit.In the time of dusty gas process S shape passage, fully mix, a large amount of grits are fallen into the water, and at S shape channel exit, the water curtain that is formed by jet is further caught the dust in the dusty gas, and gas is purified fully with water.Clean air after being cleaned upwards 14 is discharged by air-introduced machine through the gas outlet along outer cylinder body 2 after water fender is removed water droplet.In the course of the work, water droplet that is evoked and jet rely on deadweight to return again in the ash bucket, constitute the inner systemic circulation water system of deduster.Sedimentation basin only carries out precipitation process to a spot of overflow water, and each supplies water with water spot to deduster by water circulating pump 10, becomes outside partial circulating water system.The dust of sneaking in the water relies on natural subsidence, enters mud digging machine 6 by the ash bucket end opening, and settles into the dust stratification of piecemeal through ash resistanting plate, continuously or periodically plaster is discharged outside the bucket surely by the scraper plate that mud digging machine medium chain bar drives.

The water level of this deduster relies on altitude valve and the dual automatic control of overflow valve in the spill box 5, and its water-level fluctuation is between ± 3mm, to guarantee the stable operation of deduster.

The utility model drops into an amount of medicament by dosing feed-tank 13 in the decontamination process of boiler smoke.To remove the part SO in the flue gas ₂Pernicious gas, and the water in the ash bucket is carried out acid-base integration handle.

The inside and outside cylindrical shell of this deduster adopts the normal carbon steel plate to make, and interior blacking phenolic aldehyde funnel paint is made anticorrosive coat.Ash bucket liner unsaturated polyester (UP) glass steel, external application silicate thermal insulation coatings is made heat-insulation layer, and the protective layer of heat-insulation layer outer surface is the mylar glass fibre reinforced plastics casing.Its double-ring S shape passage impulse device can adopt materials such as spheroidal graphite cast-iron, industrial ceramics, glass-ceramic diabase or alumina concrete, through casting or compression molding.

The utility model is because its unique dicyclo swashs flushing device, automatic ash-removing mechanism and water-supply purification system design, the in addition measure such as anticorrosion, antifreeze, it is compared with existing like product have significant advantage: volume reduces greatly, manufacturing cost reduces by 30%, purification efficiency is up to more than 98%, and water consumption is few, and is pollution-free.

Claims

1, dicyclo disintegrating scrubber, it is characterized in that: it has a perpendicular inner barrel (1) of putting, the lower end of its cylindrical shell (1) is provided with inner ring body (3) and the outer ring body (4) that constitutes water seal S shape passage, two ring bodies below is provided with tapered appearance water ash bucket (7), and ash bucket (7) end opening connects a chain scraper type mud digging machine (6); Be nested with an outer cylinder body (2) outside inner barrel (1), the upper side of its cylindrical shell (2) is provided with a gas outlet (14), and cylindrical shell (2) upper end closed also links to each other with cylindrical shell (1) barrel, and the lower end links to each other with ash bucket is suitable for reading; Outer cylinder body (2) and ash bucket (7) place on the bearing support (11), and the lower end of frame (11) is fixed on one and has on the basis (9) of precipitating the pond; Be respectively arranged with spill box (5) and dosing feed-tank (13) in the both sides of tapered appearance water ash bucket (7), be provided with overflow valve in the spill box and be connected to overflow pipe and be connected to the precipitation pond, the dosing feed-tank have water circulating pump (10) and by circulating water pipe with feed-tank with precipitate the pond and communicate.

2, dicyclo disintegrating scrubber according to claim 1 is characterized in that: an ash resistanting plate (8) that has a uniform through hole is set in the below of tapered appearance water ash bucket (7) ash hole, and its horizontal is between the driving chain of mud digging machine (6) belt scraping plate.

3, dicyclo disintegrating scrubber according to claim 1 is characterized in that: the shell of tapered appearance water ash bucket (7) and chain scraper type mud digging machine (6) is equipped with insulating composite layer (12).