CN203329556U - Circulating wet-filtration dust remover - Google Patents

Abstract

The utility model belongs to the field of industrial dust removal, and discloses a circulating wet-filtration dust remover. The circulating wet-filtration dust remover is mainly characterized in that a dust collection cover is installed above a dusting point; a dust suction tube is communicated with the dust collection cover; an atomizing nozzle is formed in the front part in the dust suction tube; a front-stage circulating dust filtration screen and a rear-stage circulating dust filtration screen are arranged at the downstream of the atomizing nozzle; a washing nozzle is formed in the back of the screen surface of each circulating dust filtration screen; an ash discharge bucket is arranged below the circulating dust filtration screens; a dust suction fan is arranged behind the circulating dust filtration screens in a connecting manner. The circulating wet-filtration dust remover has the advantages of being reasonable in structure, good in dust removal effect due to the combination of a plurality of dust removal operations, stable in performance, low in maintenance amount, energy-saving, environment-friendly and the like.

Description

The wet filtering dust collecting machine of circulation

Technical field

The invention belongs to the industrial dedusting field, relates to the Coal Transportation System dust arrester, specifically the wet filtering dust collecting machine of a kind of circulation.

Background technology

According to statistics, in current domestic Coal Transportation System, apply sack cleaner, the ratio of electrostatic precipitator and wet type wet dust collector reaches 80%, but moves still less than 50% of devoting rate, and operational effect is not good.Three class dedusting technology existing problems are as follows:

Sack cleaner wherein

1) due to coal dust humidity and cloth bag eye high velocity air by easily forming the dewfall factor, easily be stained with stifled cloth bag eye, safeguard and while changing cloth bag workload larger,

2) the equipment pressure loss is large, and institute's gas-distributing fan power is large, and energy consumption is high,

3) continuous service for a long time, need the periodic replacement cloth bag.

Wherein, electrostatic precipitator

1) cost is high, and investment cost is high,

2) because electrostatic precipitator requires the very low wind speed that passes through, therefore bulky, be not suitable for the narrow space mounting at coal handling system,

3) easily cause the spontaneous combustion blast for the treatment of coal dust,

4) wind speed can not be too high, otherwise the efficiency of dust collection degradation, can not form that enough negative pressure are dustproof to be escaped,

5) be subject to the impact of dust resistivity due to electrostatic precipitator, dust had certain selective, and the polar curve pole plate dust stratification that makes moist, can't carry out deashing, causes like this discharge performance to decline to a great extent.

Wherein, water-bath type dust cleaner

1) power of fan is large, and energy consumption is high,

2) water consumption is large, and fan belt water is serious,

3) because the reasons such as water source calcic easily cause pipeline blockage, continuous firing for a long time.

the utility model content

The problem existed in order to solve domestic Coal Transportation System dedusting present situation, the technical scheme that the invention is taked is the wet filtering dust collecting machine of a kind of circulation of design, its structure comprises: frame, dust collection cover is set on frame, be connected sweep-up pipe is set with dust collection cover, in the front portion of sweep-up pipe, atomizer is set, pharmacy jar is connected with the water inlet pipe of atomizer, prime circulation dirt filtrating screen and rear class circulation dirt filtrating screen are set in the downstream of atomizer, wire side back at prime circulation dirt filtrating screen and rear class circulation dirt filtrating screen arranges flooding nozzle, below prime circulation dirt filtrating screen and rear class circulation dirt filtrating screen, ash bucket is set, rear at the rear circulation dirt filtrating screen of level is connected with dust absorption fan.

The wet filtering dust collecting machine of this circulation that the invention is designed, during use, dust collection cover is arranged on to the workshop material to be risen on dirt pits, during work, under the effect of dust absorption fan, dust laden air in dust collection cover enters sweep-up pipe, entered the dust laden air of sweep-up pipe before arriving prime circulation dirt filtrating screen, at first catch dirt or atomization liquid medicine (such as foaming agent through atomizer, desulfurizing agent etc.), with the toxic component that strengthens the deduster effect and remove pernicious gas, atomizer produces water smoke, dust collision combination with process, dust Gai district coacervating large particle is containing grey water droplet, dropping in Action of Gravity Field containing buck sinks to landing and discharges into ash bucket.Water smoke sprays prime circulation dirt filtrating screen and form moisture film (if adding foaming agent can produce foam) on filter screen, and part is caught by moisture film when the dust arrival prime circulation dirt filtrating screen surface of dirt escape is caught in atomization.Also contain part water smoke and a small amount of dust the comparatively clean air passed through from prime circulation dirt filtrating screen, this part dust-laden air contained water during by rear class circulation dirt filtrating screen water smoke again on filter screen, form moisture film, dust further is hunted down.The effect of rear class dirt filtrating screen mainly separates with a small amount of dust water smoke from air.Pure air after rear class filter dirt dirt filtrating screen further filters enters atmosphere by dust absorption fan, is dropped into ash bucket containing buck and discharges.Prime circulation dirt filtrating screen and rear class circulation dirt filtrating screen be cycle rotation separately, and flooding nozzle carries out online wash cycles to the wire side of circulation dirt filtrating screen in case of necessity, guarantees that the filter screen working face is in clean conditions, realizes working continuously for a long time.

This circulation of the invention filtering dust collecting machine that wets, before and after adopting, level gyration dirt filtrating screen is caught dirt in conjunction with atomization, and moisture film is caught dirt, foam arrested dust and sterilizing and purifying, adopt circulation dirt filtrating screen gyration operation, filter screen working face on-line cleaning, realize working continuously, and has rational in infrastructure, good dedusting effect, stable performance, maintenance is few, the remarkable advantages such as energy-conserving and environment-protective.

The accompanying drawing explanation

Fig. 1 means the general structure schematic diagram of the wet filtering dust collecting machine of the invention circulation.The specific embodiment

In conjunction with the accompanying drawings and embodiments, further illustrate the concrete structure of the invention.

The embodiment of the wet filtering dust collecting machine of the invention circulation, referring to Fig. 1, its structure comprises: frame 1, dust collection cover 3, the dust collection bent pipe 4 be connected with dust collection cover 3, the atomizer 5 that front portion in dust collection bent pipe 4 arranges, the pharmacy jar 8 be connected with the water inlet pipe 5.1 of atomizer 5, pharmacy jar 8 fills different liquid (as foaming agent or desulfurizing agent etc.), the spraying pipeline section of dust collection bent pipe 4 is communicated with the housing of prime circulation dirt filtrating screen and rear class circulation dirt filtrating screen 9, the flooding nozzle 6 arranged respectively at the wire side back of prime circulation dirt filtrating screen and rear class circulation dirt filtrating screen 9 and 10 and water inlet pipe 6.1, 10.1, the ash bucket 11 arranged below the housing of prime circulation dirt filtrating screen and rear class circulation dirt filtrating screen, dust absorption fan 12 is connected with the housing of prime circulation dirt filtrating screen and rear class circulation dirt filtrating screen.

This dust removal machine is applicable to coal and other material dust, and the dedustings such as discharge flue dust, during use, be arranged on dirt pits 2 tops by the dust collection cover of the machine 3.

Claims (1)

1. the wet filtering dust collecting machine of circulation, comprise frame, it is characterized in that arranging dust collection cover on frame, be connected sweep-up pipe is set with dust collection cover, in the front portion of sweep-up pipe, atomizer is set, pharmacy jar is connected with the water inlet pipe of atomizer, prime circulation dirt filtrating screen and rear class circulation dirt filtrating screen are set in the downstream of atomizer, wire side back at prime circulation dirt filtrating screen and rear class circulation dirt filtrating screen arranges flooding nozzle, below prime circulation dirt filtrating screen and rear class circulation dirt filtrating screen, ash bucket is set, at the rear of rear class circulation dirt filtrating screen, is connected with dust absorption fan.

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