CN202569888U

CN202569888U - Timber industry electric bag composite deduster

Info

Publication number: CN202569888U
Application number: CN 201220223485
Authority: CN
Inventors: 那斌; 蒋传生; 周捍东; 王志强
Original assignee: Nanjing Forestry University
Current assignee: Nanjing Forestry University
Priority date: 2012-05-18
Filing date: 2012-05-18
Publication date: 2012-12-05
Anticipated expiration: 2022-05-18

Abstract

The utility model discloses a timber industry electric bag composite deduster. The timber industry electric bag composite deduster is characterized in that a side direction air intake mode is adopted; an air flow distribution plate is arranged on an air inlet of the deduster; sixteen barb-type corona electrodes are evenly distributed on a pattern card which has the same distance as an excircle dust collection electrode plate; filter bags are equidistantly and evenly distributed inside a circumference encircled by the corona electrodes; filter materials are made of membrane filter materials; upper mouths of frameworks of the filter bags are in protection cover structure; the protection covers contact with the pattern card through gaskets and are fixed through bolts; a mechanical rapping device is used for electric dedusting and deashing and is arranged on the inner side of the dust collection electrode plate; an impulse blowing system is used for deashing of the filter bags; a plurality of nozzles are arranged on a blowing pipe and right above the filter bags in corresponding mode; an ash hopper is arranged at the bottom of the deduster; a hopper wall vibrator is arranged beside the ash hopper; and an ash unloading valve is arranged under the ash hopper. The timber industry electric bag composite deduster has the advantages that removing of dust is efficient, cleaning of ash is thorough, service life of the filter bags is long, efficient of removing of fine dust is also high, and dust pollution of timber processing industries can be effectively reduced.

Description

The timber industry electric-bag complex dust collector

Technical field

The utility model relates to a kind of timber industry electric-bag complex dust collector, is used for handling the flue gas that dust that wood processing enterprise produces and wood processing enterprise boiler plant are discharged, and belongs to wood processing industry cleaner field.

Background technology

The development of China's timber industry is started in last century five, the sixties, has experienced from the middle and later periods of the eighties to begin to introduce successively external complete production line.China's timber industry development at present is rapid, and the dust pollution that can thereupon bring is also more and more serious.This has become the key factor of restriction China timber industry development to a certain extent, therefore also more and more causes people's attention.The cleaner efficiency of dust collection that uses at present is low, and to the processing defectiveness of fine dust, dust is arranged to atmosphere, causes the pollution to atmosphere.

Summary of the invention

What the utility model proposed is a kind of timber industry electric-bag complex dust collector; Be used for handling the flue gas that dust that wood processing enterprise produces and wood processing enterprise boiler plant are discharged; Its purpose is intended to overcome prior art and handles dust that wood processing enterprise produces and the existing above-mentioned defective of flue gas; Thereby effectively reduce wooden dust and boiler smoke row to atmosphere, reduce pollution level.

The technical solution of the utility model: it is characterized in that it being to adopt the side direction intake method, airflow-distribution board is set at the air inlet that installs; 16 barb type corona electrodes are evenly distributed on the card with cylindrical dust collecting pole plate equidistance; The filter bag equidistance is evenly distributed in the circumference of corona electrode encirclement, and filtrate adopts coated filter material; Filter-bag carcass employing protective sleeve suitable for reading structure, this protective sleeve contacts with card through pad, through bolt; The electric precipitation deashing adopts the mechanical vibrator device, is arranged on the inboard of dust collecting pole plate; Filter bag ash removal adopts the pulse jet system, and the winding-up pipe is provided with several nozzles, and nozzle is corresponding to directly over the filter bag; Ash bucket is arranged on the deduster bottom, and the ash bucket side is provided with hopper wall vibrator, and the below is provided with unloading valve.

The advantage of the utility model: 1) adopt electricity bag integral structure, given full play to the advantage of electrostatic precipitation and bag-type dusting, efficiency of dust collection high (can reach 99.96%) is also very high to the fine dust efficiency of dust collection;

2) the air inlet place is provided with airflow distribution device, and the dedusting indoor air flow is evenly distributed, and can reduce resistance simultaneously; 3) Filter-bag carcass employing protective sleeve suitable for reading structure, the air-flow deflection that prevents to jet is washed away filter bag, and the filter bag that adequately protects prolongs life-span of the filter bag; 4) adopt coated filter material, mechanical vibrator deashing and pulse jetting deashing have guaranteed the completeness of deashing, and running resistance is low.

Description of drawings

Accompanying drawing 1 is a timber industry electric-bag complex dust collector structural front view.

Accompanying drawing 2 is timber industry electric-bag complex dust collector structure left views.

Accompanying drawing 3 is dismantle structure vertical views of upper box of timber industry electric-bag complex dust collector.

Accompanying drawing 4 is the filter bag of timber industry electric-bag complex dust collector structural representations suitable for reading.

Accompanying drawing 5 is structural representations of the airflow-distribution board of timber industry electric-bag complex dust collector.

Accompanying drawing 6 is structural representations of the barb type corona electrode of timber industry electric-bag complex dust collector.

Accompanying drawing 7 is filter bag reinforcing bar fence type skeleton sketch mapes of timber industry electric-bag complex dust collector.

Among the figure 1 is ash bucket, the 2nd, mechanical vibrator device, the 3rd, air inlet, the 4th, airflow-distribution board, the 5th, barb type corona electrode, the 6th, winding-up pipe, the 7th, air-purifying chamber, the 8th, gas outlet, the 9th, filter bag, the 10th, hopper wall vibrator, the 11st, unloading valve, the 12nd, pulse valve, the 13rd, gas bag, the 14th, pulse control instrument, the 15th, Venturi tube, the 16th, rubber gasket, the 17th, card, the 18th, Filter-bag carcass.

The specific embodiment

Contrast accompanying drawing

1,2,3, its structure are to comprise ash bucket 1, mechanical vibrator device 2, air inlet 3, airflow-distribution board 4, corona electrode 5, winding-up pipe 6, air-purifying chamber 7, gas outlet 8, filter bag 9, hopper wall vibrator 10, unloading valve 11, pulse valve 12, gas bag 13, pulse control instrument 14 etc.Wherein air inlet 3 is provided with airflow-distribution board 4; 16 corona electrodes 5 are evenly distributed on the card 17 with cylindrical dust collecting pole plate equidistance; Filter bag 9 equidistance are evenly distributed in the circumference of corona electrode 5 encirclements, and filtrate adopts coated filter material; The electric precipitation deashing adopts mechanical vibrator device 2, is arranged on the inboard of dust collecting pole plate; Filter bag ash removal adopts the pulse jet system, and winding-up pipe 6 is provided with several nozzles, and nozzle is corresponding to directly over the filter bag; Ash bucket 1 is arranged on the deduster bottom, and the ash bucket side is provided with hopper wall vibrator 10, and the below is provided with unloading valve 11.

After power supply was switched on to corona electrode 5, it was electric to make that the barb type corona electrode gets, and dust collector pole is a cylindrical shell ground connection, and two electrodes just constitute inhomogeneous field, the corona discharge electrode corona discharge.During work; Dust-contained airflow gets into air inlet 1, and through the uniform distribution of airflow-distribution board (like Fig. 5), air-flow evenly gets in the dust chamber; Just can carry out charged with the air of ionization; So a part of dust just can be to the motion of the dust collector pole of oppositely charged, and another part has the dust of electric charge and promptly gets into filter bag 9, comprehensive functions such as the inertia through filter bag 9 surfaces, collision, sieving, static; Make dust settling on filter bag surface and form dust layer, purified gas gets into air-purifying

chamber

7 and 7 discharges through the gas outlet.

The dust deposit that process static captures is on dust collector pole, and mechanical vibrator device 2 every separated some cycles carry out rapping, through the rapping power that rapping apparatus produces, make the disengaging of dust and dust collector pole, drop in the bottom ash bucket 1 through the self gravitation deposition.And after the filter bag surface traps certain dust, then need deashing.Pulse valve 12 in the jetting deashing system is opened, and this moment, compressed air sprayed through nozzle through pulse valve 12 from gas bag 13.Induce the surrounding air that is several times as much as a wind to get into filter bag 9 when high velocity air through Venturi tube 15 persuaders, caused instantaneous malleation in the filter bag, realized deashing.Dust stratification acquires a certain degree in the ash bucket, need unload ash.Hopper wall vibrator 10 through being installed on the ash bucket produces rapping, makes dust pass through unloading valve 11 and discharges.

Contrast accompanying drawing 4, its structure is Filter-bag carcass 18 employing protective sleeve structures suitable for reading, and protective sleeve adopts Venturi tube 15, and Venturi tube contacts with card 17 through rubber gasket 16, through bolt.Venturi tube is installed improves cleaning efficiency greatly.

Contrast accompanying drawing 5, its structure is the airflow-distribution board of porous shape.The perforate scheme is that the distance of every layer of pore equates that two interlamellar spacings also equate up and down, and two-layer up and down being spaced.Adopting this kind scheme perforate purpose is in order to make the dust-contained airflow that flows through can reach more stable and uniform state, thereby helps improving efficiency of dust collection.

Contrast accompanying drawing 6; Its structure is to make and form the band steel barbed nail corona electrode that prickle distributes by reinforcing bar; By High voltage power supply equipment it being supplied power during work makes it produce high pressure at the tip; Thereby make surrounding air produce corona phenomenon, make air ionization so that give powder dust particle charged, thereby realize electrostatic precipitation.

Contrast accompanying drawing 7, its structure is a reinforcing bar fence type Filter-bag carcass.Because gas gets into outside filter bag in the filter bag, is outside filtering type, dust deposit is at the filter bag outer surface, and it is flat to prevent that gas from blowing filter bag, thus skeleton must be set in filter bag, and this framework helps pulse jetting deashing, and smooth surface does not have burr.

Claims

1. the timber industry electric-bag complex dust collector is characterized in that air inlet is provided with airflow-distribution board; 16 corona electrodes are evenly distributed on the card with cylindrical dust collecting pole plate equidistance; The filter bag equidistance is evenly distributed in the circumference of corona electrode encirclement, and the mechanical vibrator device that the electric precipitation deashing adopts is arranged on the inboard of dust collecting pole plate; The pulse jet system that filter bag ash removal adopts, the winding-up pipe in this pulse jet system is provided with several nozzles, and this nozzle is corresponding to directly over the filter bag; Ash bucket is arranged on the deduster bottom, and ash bucket one side is provided with hopper wall vibrator, and the ash bucket below is provided with unloading valve.

2. timber industry electric-bag complex dust collector according to claim 1 is characterized in that, described airflow-distribution board is the perforated plate construction of evenly arranging.

3. timber industry electric-bag complex dust collector according to claim 1 is characterized in that, described corona electrode is a band steel prickle line style corona electrode.

4. timber industry electric-bag complex dust collector according to claim 1 is characterized in that, described Filter-bag carcass employing protective sleeve suitable for reading structure, and this protective sleeve contacts with card through pad, through bolt.

5. timber industry electric-bag complex dust collector according to claim 1 is characterized in that, described protective sleeve structure is a Venturi tube.

6. timber industry electric-bag complex dust collector according to claim 1 is characterized in that, described skeleton is a reinforcing bar fence type skeleton.