CN2515550Y

CN2515550Y - Active impacted wet dust collector

Info

Publication number: CN2515550Y
Application number: CN 01228469
Authority: CN
Inventors: 徐江
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-07-08
Filing date: 2001-07-08
Publication date: 2002-10-09
Anticipated expiration: 2011-07-08

Abstract

Disclosed is an active impact type water bath dust catcher which is an environmental protection device. In order to solve the problem that the current device has high energy consumption and low dust removing efficiency, the utility model utilizes the thrust force of a draught fan (a ventilator) to directly flush the dusty harmful gas discharged to the water bath with deep plunging, and a filter screen is positioned in the water for dividing the airflow mass, so the dust removing efficiency is largely improved. Dual purposes of one machine result in the reduction of energy consumption, and the power is reduced by over fifty to seventy percent by adopting the device compared with other similar devices. The dust catcher is particularly suitable for washing purifying desulfurization dust-removal devices for eliminating smoke and removing dust of coal-fired boilers and kilns, and can also be used for air purification and dust removing in dust operation locations.

Description

Active impulse type water bath deduster

The utility model relates to a kind of environmental protection equipment, is particularly suitable for the washing, purifying desulfation dust-extraction device that all kinds of coal-burning boilers, kiln smoke abatement and dust control are used---impulse type water bath deduster initiatively.This deduster also can be used for the purifying and dedusting of various dust works place air.

At present, all impulse type water bath desulfurization dust removings, all be to make ash-laden gas under the effect of negative pressure by the suction (negative pressure) that air-introduced machine produces, be inhaled in the water-bath with very big speed, the impulse type water bath deduster that makes the gas shock water surface and form, we are referred to as passive impulse type water bath deduster.For make flue gas when the water-bath and water fully act on, also must seethe the water in the water-bath with power.This deduster energy consumption height, efficiency of dust collection are low, over-emitting black exhaust nearly all when coal.

The purpose of this utility model is that the active impulse type water bath that a kind of energy consumption is low, efficiency of dust collection is high deduster will be provided.

When the purpose of this utility model is achieved in that air-introduced machine and centrifugal fan work, can not only produce very big suction (negative pressure), when it discharges gas, also have very big motive force (normal pressure).The thrust of (leading to) blower fan is drawn in utilization, the gas that its discharge is contained harmful substances such as flue dust directly pours the impulse type water bath deduster that forms in the water-bath, we are referred to as initiatively impulse type water bath deduster, and its structure sees accompanying drawing for details, and (1) is the water-bath housing and the water surface among the figure; (2) be air-introduced machine and penetrate air draft tube in the water-bath; (3) be the gas-tight silo that the housing and the water surface form; Be to improve efficiency of dust collection, also must pour air-flow group in the water-bath at it in come-up, be that card clothing (4) is separated into thread to air-flow group with the filter screen in the horizontal positioned water-bath, make to contain flue dust and SO ₂Physics and chemical action fully take place with water and filter screen in the gas etc. harmful substance in water-bath, harmful substance is held back by water-bath, and gas just obtains the washing of water-bath when emerging to gas-tight silo (3) and purifies.

The interior gas of gas-tight silo (3) is on the increase, pressure constantly increases, force gas to return the water surface and when the water sealing part passes the filter screen (5) of vertical placement the water surface and the water, gas is washed once more and emerges that to enter releasing bin be spraying dust removal tower (6) after the purification, sparge pipe is set in releasing bin chews the water of (7) ejection, water-bath is brought in constant renewal in, the gas that makes the emersion water-bath by spray washing after smoke stack emission in atmosphere.By

Aforementionedly know that this dust arrester is the initiatively combination of impulse type water bath deduster and spray scrubber, so be called active impulse type water bath gas wash tower again.Water surface elevation autobalance and control that water seal overflow pipe (8) makes water-bath are set in the releasing bin bottom.Discharging valve (9) is set so that the dust-laden sewage in the water-bath is emitted when stopping using in the bottom of water-bath, flows in the cistern, water recycles.

The number of plies of horizontal positioned filter screen generally is no less than three layers in the water-bath, and the degree of depth that the air draft tube penetrates in the water-bath can be calculated by 85% of the maximum total head of blower fan.The number of plies that gas-tight silo water sealing part is vertically placed filter screen in the water is 1～3 layer and gets final product.

Water-bath can make as required garden shape, ellipse garden shape, square, rectangle all can, its material can be used steel plate, corrosion resistant plate welding, also available masonry or concrete masonry units vary in different localities, and gather materials on the spot.

When this active impulse type water bath deduster is used on coal-burning boiler, the kiln, before it, must add the one-level pre-cleaner of lowering the temperature, with the temperature of the ash-laden gas that guarantees to enter air-introduced machine below 250 ℃, making the pre-cleaner of cooling with " horizontal spiral washing, purifying deduster (patent No.: 00265830; 5) " is best selection, that is to say that this patent is the corollary equipment of using for the two-stage dust removal of 00265830, No. 5 patent design.

This utility model is used in the dust work place, only need dust source add a dust shield and with pipeline with draw (leading to) blower fan and be connected and promptly can be used as the air cleaning deduster, the recyclable utilization of dust (water-insoluble) post precipitation, cleaned air passes directly is discharged in the atmosphere, and is free from environmental pollution.

Advantage of the present utility model is: give full play to the function dual-use that draws (leading to) blower fan.Owing to be directly to penetrate in the water, it is big to penetrate the degree of depth, utilizes aqueous vapor proportion difference, is purified when allowing gas emerge automatically, and energy consumption is low, efficiency of dust collection is high, also over-emitting black exhaust not when coal.This deduster compact conformation, floor space and space are little, and stable performance is easy and simple to handle, and operational and administrative expenses is low.When this deduster was used on 5 tons of boilers or 100～160 tons of kilns, the installed capacity of a complete set of equipment was 12～15KW, compares and can economize on electricity more than 50～70% with other cleaners.

Claims

1, a kind of coal-burning boiler that is used in, make the active impulse type water bath deduster that smoke abatement and dust control and dust work place are used the air cleaning dedusting on the kiln, it is characterized in that utilizing the thrust of drawing (leading to) blower fan, its discharge being contained pernicious gases such as flue dust directly pours in the water-bath (1) by air draft tube (2), filter screen (4) with the parallel placement of the water surface is arranged in water-bath around the air draft tube (2), water-bath middle part have dividing plate that body contact body on is lowered to water-bath water-bath above and the space separated into two parts that forms between the housing, have between the part water-bath top of air draft tube (2) and the housing and form gas-tight silo (3), have between the part water-bath top of flue gas after being purified outlet and the housing to form releasing bin (6), the filter screen (5) of vertical placement with the water surface is arranged at the water sealing part of the lower partition gas-tight silo (3).

2, deduster according to claim 1 is characterized in that being provided with water spray ozzle (7) on the top of releasing bin (6), is provided with water seal overflow pipe (8) in the bottom of releasing bin, and Draw off valve (9) is housed in the water-bath bottom.