CN200998692Y

CN200998692Y - Uniform distributed electric field type electric precipitator

Info

Publication number: CN200998692Y
Application number: CNU2007200310696U
Authority: CN
Inventors: 奚国良; 蒋秀红; 曹培生
Original assignee: 毛少祥
Current assignee: Shaanxi Huaxiang Energy Technology Group Co., Ltd.
Priority date: 2007-01-19
Filing date: 2007-01-19
Publication date: 2008-01-02
Anticipated expiration: 2017-01-19

Abstract

The utility model provides a uniformly-distributed electric field electric dust cleaner, which comprises a casing body with an air inlet opening and an air outlet opening, wherein, an air distribution plate is arranged inside the air inlet opening, two or more groups of dust cleaning units formed by a dust cleaning pole array, a discharging pole array and dust bin arranged in turn between the air inlet opening and the air outlet opening inside the casing body, the dust cleaning pole array is formed by a ripple-shaped dust cleaning polar plates, and adopts the buckle connection to be connected as a whole, the air distribution plate adopts the inlaying mode to be fixed on the casing body fixing frame, and through holes of more than two types of opening percentage are arranged on the air distribution plate. The utility model adopts the ripple-shaped dust cleaning polar plate, the ripple-shaped dust collecting polar plate and the discharging pole can form an equidistant electric field similar to the shape of a honeycomb, with the uniformly distributed electric field intensity, and the current density on the dust cleaning polar plate is also distributed uniformly, and no pinnacle points exist; by adopting the buckle connection structure, the dust collecting pole array is connected into a rigid body, with high rapping force accelerated velocity transmission performance, high reliability of cleaning the dust, and the corona blockage and electric field failure phenomenon are avoided.

Description

Uniform Electric field electric cleaner

Technical field

The utility model relates to a kind of Industrial Stoves flue-gas dust removal and purification device, particularly a kind of uniform Electric field electric cleaner.

Background technology

At present, the clean unit electric field of industrial furnace gas cleaning electric cleaner, dust collecting pole plate (anode) are dull and stereotyped basically, and do not connect fully between dust collector pole row's the every dust collecting pole plate, just connect by clamp on two to four points; The percent opening of two layers or three layers gas distribution grid that are provided with in the electric cleaner air inlet is a kind of, and is by the mode of welding, is rigidly attached on the fixed mount of gas distribution grid.This class electric cleaner exists a lot of defectives for these reasons, can not satisfy the emission request of the national environmental standard regulation of implementing recently in 2004.Its main cause is: dust collecting pole plate (anode) is dull and stereotyped, cause discharge electrode (negative electrode) not wait thus to the distance of dust collecting pole plate (anode), can cause that then the electric-field intensity between dust collecting pole plate (anode) and the discharge electrode (negative electrode) is inhomogeneous, current density on the dust collecting pole plate (anode) is inhomogeneous, and has the current spike point; Connect fully between every dust collecting pole plate of dust collector pole row, do not become a rigid unitary, the acceleration transmission of rapping power descends, and causes dust collector pole row's deashing unfavorable, and dust collector pole row's dust is long-pending thick after to a certain degree, produces corona blocking, and electric field lost efficacy.Thereby cause the decline of the dust-collecting efficiency of electric cleaner.Experiment shows when the percent opening of two layers or three layers gas distribution grid that are provided with in the air inlet is a kind of that air-flow distributes and do not reach optimum state, causes the air-flow skewness; Gas distribution grid is rigidly attached on its fixed mount by the mode of welding, and the dust that causes sticking on the gas distribution grid progressively thickens, and causes the local obstruction of gas distribution grid, causes the air-flow skewness.Air-flow enters in the electric field of back unevenly, can cause the load of electric field inhomogeneous, thereby causes the decline of the dust-collecting efficiency of electric cleaner.

Summary of the invention

The purpose of this utility model is to overcome the shortcoming of above-mentioned prior art, and a kind of present environmental protection demand that is fit to is provided, and is rational in infrastructure, the uniform Electric field electric cleaner that efficiency of dust collection is high.

In order to achieve the above object, the technical solution adopted in the utility model is: comprise the housing that is provided with air inlet and gas outlet, be provided with gas distribution grid in air inlet inside, in housing, set gradually more than two groups between air inlet and the gas outlet and arranged by dust collector pole, the dust removing units that discharge electrode row and ash bucket are formed, be characterized in, dust collector pole row is fixed in the housing by pole plate suspention beam and vibrating rod, dust collector pole row be made of the ripple type dust collecting pole plate, each dust collecting pole plate adopts button to hang and detains mutually between every dust collecting pole plate of syndeton to hang to connect and constituted dust collector pole row jointly, gas distribution grid adopts the mode of inlaying to be fixed on the housing fixed mount, and offers the through hole of two or more percent openings on the gas distribution grid.

Another characteristics of the present utility model are: dust collector pole row utilizes the suspension plate single-point to hang on the pole plate suspention beam, and the two ends of pole plate suspention beam are fixed on the back timber of electric cleaner housing, also be provided with the insulator that hangs the discharge electrode system on the back timber, discharge electrode row be fixed on the discharge electrode suspension, and the discharge electrode suspension is hung on insulator by column pipe; Dust collector pole row and discharge electrode are respectively arranged with vibrated system on arranging, and this vibrated system comprises rapping transmission mechanism, beater axle and is fixed on beater on the beater axle.

Be similar to cellular equidistant electric field because the utility model employing ripple type dust collecting pole plate, ripple type dust collecting pole plate and discharge electrode have been formed, the intensity distributions of electric field is even, and the electric current distribution on the dust collecting pole plate is even, does not have the spike point; Take button to hang syndeton and make dust collector pole row be connected to a rigid body, the acceleration of rapping power transmits, and deashing is reliable, has avoided corona blocking, the generation of electric field failure phenomenon; Adopt the reasonable combination of the gas distribution grid of percent opening more than two kinds, improved the uniformity that air-flow distributes; The mode that employing is inlayed is fixed on gas distribution grid on its fixed mount, makes distribution grid have function from deashing, can not cause the reduction of flow distribution evenness owing to the stifled ash in the part of gas distribution grid.

Description of drawings

Fig. 1 is an overall structure schematic diagram of the present utility model;

Fig. 2 a is that dust collecting pole plate button of the present utility model is hung the syndeton schematic diagram, and Fig. 2 b is the partial enlarged drawing of Fig. 2 a.

The specific embodiment

Below in conjunction with accompanying drawing structural principle of the present utility model and operation principle are described in further detail.

Referring to Fig. 1, the utility model comprises the housing 15 that is provided with air inlet 1 and gas outlet 16, be provided with gas distribution grid 2 in air inlet 1 inside, gas distribution grid 2 adopts the mode of inlaying to be fixed on the housing fixed mount 17, and offer the through hole of two or more percent openings on the gas distribution grid 2, in housing 15, set gradually between air inlet 1 and the gas outlet 16 more than two groups by dust collector pole row 11, the dust removing units 19 that discharge electrode row 7 and ash bucket 22 are formed, dust collector pole row 11 utilizes suspension plate 6 single-points to hang on the pole plate suspention beam 12, and the two ends of pole plate suspention beam 12 are fixed on the back timber 13 of electric cleaner housing 15, also be provided with the insulator 4 that hangs the discharge electrode system on the back timber 13, discharge electrode row 7 is fixed on the discharge electrode suspension 5, discharge electrode suspension 5 is hung on insulator 4 by column pipe 3, also be respectively arranged with vibrated system on dust collector pole row 11 and discharge electrode row 7, this vibrated system comprises rapping transmission mechanism 8, beater axle 14 and the beater 21 that is fixed on the beater axle.

Referring to Fig. 2, dust collector pole of the present utility model row 11 is made of ripple type dust collecting pole plate 10, and each dust collecting pole plate 10 adopts button to hang syndetons, between the every dust collecting pole plate 10 mutually button hang to connect and constituted dust collector pole row 11 jointly.

Workflow of the present utility model is as follows: ash-laden gas enters uniform Electric field electric cleaner by air inlet 1, carry out uniform through 2 pairs of flue gases of gas distribution grid, flue gas after uniform enters by dust collector pole row 11 and discharge electrode row 7 to be formed and applies between the two poles of the earth in the electric field of 60～72KV high voltage direct current, on a large amount of electronics and the grit of a spot of ionic adsorption in flue gas of electric field with the air ionization generation, move to heteropole under the effect of electric field force the charged back of grit, a large amount of electronegative grits are adsorbed on the dust collector pole, the positively charged grit of small part is adsorbed on the discharge electrode, and flue gas after being purified flows out uniform Electric field electric cleaner by gas outlet 16; Be adsorbed to the grit on dust collector pole and the discharge electrode, under the knocking of vibration body, come off, fall into ash bucket from dust collector pole and discharge electrode.

Gas distribution grid 2 of the present utility model adopts the mode of inlaying to be fixed on its fixed mount 17, make gas distribution grid 2 possess function from deashing, when flue gas stream flows through gas distribution grid 2, gas distribution grid 2 is vibrated, the grit that is attached on the gas distribution grid 2 is shaken off, by the base plate inflow ash bucket 22 of air inlet 1.

Claims

1, uniform Electric field electric cleaner, comprise the housing [15] that is provided with air inlet [1] and gas outlet [16], be provided with gas distribution grid [2] in air inlet [1] inside, in housing [15], set gradually between air inlet [1] and gas outlet [16] more than two groups by dust collector pole row [11], the dust removing units [19] that discharge electrode row [7] and ash bucket [22] are formed, it is characterized in that: dust collector pole row [11] is fixed in the housing [15] by pole plate suspention beam [12] and vibrating rod [20], dust collector pole row [11] is made of ripple type dust collecting pole plate [10], each dust collecting pole plate [10] adopts button to hang and detains mutually between every dust collecting pole plate of syndeton [10] to hang to connect and constituted dust collector pole row [11] jointly, gas distribution grid [2] adopts the mode of inlaying to be fixed on the housing fixed mount [17], and offers the through hole of two or more percent openings on the gas distribution grid [2].

2, uniform electric field electric cleaner according to claim 1, it is characterized in that: said dust collector pole row [11] utilizes suspension plate [6] single-point to hang on the pole plate suspention beam [12], and the two ends of pole plate suspention beam [12] are fixed on the back timber [13] of electric cleaner housing [15], also be provided with the insulator [4] that hangs the discharge electrode system on the back timber [13], discharge electrode row [7] is fixed on the discharge electrode suspension [5], and discharge electrode suspension [5] is hung on insulator [4] by column pipe [3].

3, uniform electric field electric cleaner according to claim 1, it is characterized in that: said dust collector pole row [11] and discharge electrode are arranged on [7] and are respectively arranged with vibrated system, and this vibrated system comprises rapping transmission mechanism [8], beater axle [14] and is fixed on beater [21] on the beater axle.