CN2347667Y

CN2347667Y - Reliable anti-dewing electrostatic dust collector

Info

Publication number: CN2347667Y
Application number: CN 98229026
Authority: CN
Inventors: 周奇伟
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-06-27
Filing date: 1998-06-27
Publication date: 1999-11-10
Anticipated expiration: 2008-06-27

Abstract

The utility model belongs to a highly reliable anti-dewing electrostatic dust collector. The utility model is characterized in that the inner of a cylinder body is provided with a central heating blasting integrated drying arrangement which is composed of a heating blower, heating wind air and an upper resonance wind pipe and a chain and gear driving mechanism for eliminating ashes which is composed of a motor, a brake shoe brake, a speed reducer, a chain wheel, a scraping ring, etc. The utility model can make the insulation devices of power generating plants kept to be dry for years and have no the trouble of corona blocking, besides, the utility model puts an end to the accidents of scraping ring operation jamming and steel rope breaking, so the utility model can preserve high dust collecting effect on a long time, and the application range can not be limited because of large dust humidity. The utility model can be used for mine plants and factories of severe dust pollution.

Description

Highly reliable resistive connection reveals electrostatic precipitator

The utility model belongs to electrostatic separating device, and a kind of highly reliable resistive connection reveals electrostatic precipitator.

The modern manufacturing enterprise that many dust are big, humidity is high, as flour mill, cement plant, thermal power plant, for environmental requirement with improve the needs of production environment, electrostatic precipitator all is installed, its operation principle is to form corona field with high direct voltage in the dust-precipitator tube, make that the dust that passes through is charged to deposit on barrel and the corona wire, hit down in the dust hopper with rapping apparatus again.But in the practice, the big dust of water capacity by electrostatic field the time, because of the temperature difference causes dewfall, can be sticky on seal, cause dielectric strength to descend, form the creepage or short circuit of high pressure, make the high pressure can not normal power supply, dust collection effect is reduced greatly; Again because of dewfall makes dust sticky on barrel, general impacting type rapping apparatus can't fall its rapping, for a long time it, when reaching the 20MM left and right sides with sticky layer thickening, the corona that electric field forms will be closed, and completely lose the effect of gathering dust.And in cylindrical shell, with steel wire rope elevator formula transmission scraper or scraping ring muddy or caking shape dust are struck off by force, rope stretch rate because of a plurality of scraping rings of a plurality of cylindrical shells can not be consistent again, thereby it is stuck to cause scraping ring to tilt easily, and steel wire rope ruptures easily, and scraping ring falls.

The purpose of this utility model is to solve high wet dust to make the seal dewfall easily, a difficult problem that causes dust-precipitator to lose efficacy.

The purpose of this utility model realizes by the design that following highly reliable resistive connection reveals electrostatic precipitator, and it mainly is made of shake machine, vibrating grid, corona wire, seal, flue-dust retainer etc. of high-voltage dc cylindrical shell, electricity, it is characterized in that:

A. in cylindrical shell, be provided with by warm-air pipe, discharge pipe, on the integrated drying device of concentrated heating air blast formed of reverse-blow pipe, air-heater, air-heater links to each other with warm-air pipe by pipeline C, on each seal, discharge pipe is located at the cylindrical shell upper end in last reverse-blow pipe is delivered to electric field boundary;

B. form chain transmission deashing device by motor, block brake, shaft coupling, reductor, minor sprocket, power transmission shaft, lifting sprocket wheel and scraping ring, motor links by block brake, shaft coupling and reductor, drive power transmission shaft, promote the sprocket wheel running through minor sprocket again, and drive the upper and lower motion of scraping ring.

Fig. 1 is the utility model structural representation and embodiment;

Fig. 2 is the plan structure schematic diagram of Fig. 1.

Drawing reference numeral is respectively: the 1-electricity inside and outside union 13-flue-dust retainer 14-of coaming plate 9-steelframe 10-entrance door-plate 11-loose flange 12-that shakes before and after the upper reverse-blow pipe 8-of machine 2-vibrating grid 3-spring 4-warm-air pipe 5-top cover 6-discharge pipe 7-flashes valve 15-silicon rectifying transformer 16-support 17-bearing assembly 18-power transmission shaft 19-installing rack 20-and promotes sprocket wheel 21-installing rack base 22-motor mounting rack 23-motor 24-block brake 25-shaft coupling 26-reductor 27-minor sprocket 28-scraping ring 29-air-heater 30-corona wire.

Fig. 1, Fig. 2 are as embodiment, provided the utility model concrete structure, wherein, form the integrated drying device of concentrated heating air blast by warm-air pipe 4, discharge pipe 6, last reverse-blow pipe 7, air-heater 29, air-heater 29 links to each other with warm-air pipe 4 by pipeline C, deliver in the electric field on each seal through last reverse-blow pipe 7, discharge pipe 6 is located at the cylindrical shell upper end, during work, about 80 ℃ the hot blast that air-heater 29 produces enters warm-air pipe 4 by pipeline, be distributed in the electric field on each seal from warm-air pipe and last reverse-blow pipe 7 again, make it remain drying.

Form chain transmission deashing device by motor 23, block brake 24, shaft coupling 25, reductor 26, minor sprocket 27, power transmission shaft 18, lifting sprocket wheel 20 and scraping ring 28, motor 23 links with reductor 26 by block brake 24, shaft coupling 25, drive power transmission shaft 18, promote sprocket wheel 20 runnings through minor sprocket 27 again, and drive scraping ring 28 upper and lower motions.For the very big dust of sticky water capacity on barrel, only need starter receiver chain drive deashing device, drive scraping ring 28 motions and just dust sticky on the barrel can be disposed at an easy rate, and unlikely generation scraping ring is stuck and the steel rope breaking accident.

The utility model has the advantages that and to make the various electric field seals of electrostatic precipitator throughout the year all Keep dry, the barrel deashing is easy, clean, the reliability height, thereby between barrel electric field and corona wire negative electrode Remain good corona effect, can not produce the corona blocking phenomenon. Not only install initial stage dedusting effect The rate height, and can keep for a long time very high dust removing effects, make high pressure electrostatic precipitation technology that the prominent of a matter be arranged Broken, expanded the use field, particularly make to contain wet very big dust and can effectively be administered, can extensively answer Be used for the serious industrial enterprise of dust pollution.

Claims

1. a highly reliable resistive connection reveals electrostatic precipitator, mainly is made of shake machine, vibrating grid, corona wire, seal, flue-dust retainer of high-voltage dc cylindrical shell, electricity, it is characterized in that:

A. in cylindrical shell, be provided with the integrated drying device of forming by warm-air pipe (4), discharge pipe (6), last reverse-blow pipe (7), air-heater (29) of concentrated heating air blast, air-heater (29) links to each other with warm-air pipe (4) by pipeline C, deliver in the electric field boundary on each seal through last reverse-blow pipe (7), discharge pipe (6) is located at the cylindrical shell upper end;

B. form chain transmission deashing device by motor (23), block brake (24), shaft coupling (25), reductor (26), minor sprocket (27), power transmission shaft (18), lifting sprocket wheel (20) and scraping ring (28), motor (23) links with reductor (26) by block brake (24), shaft coupling (25), drive power transmission shaft (18), promote sprocket wheel (20) running through minor sprocket (27) again, and drive the upper and lower motion of scraping ring (28).