SU1680340A1 - Electric precipitator - Google Patents

Description

The invention relates to the electrical cleaning of gases from dust and can be used in various industries. The purpose of the invention is to increase the efficiency of dust collection by reducing the amount of dust from the hopper when shaking the electrodes. The electrostatic precipitator includes a housing, precipitation and corona electrodes. At the bottom of the electrostatic precipitator there is a hopper with a flat bottom, ribs mounted along the chain transmission on the bottom, which has scrapers. The ratio of the height of the ribs to the height of the collecting electrodes is at least 1: 500. 3 il.

The invention relates to the electrical cleaning of gases from dust and can be used in various industries.

The aim of the invention is to increase the efficiency of dust collection by reducing dust loss from the bunker when shaking the electrodes by creating a dust layer on the bottom of the bunker,

FIG. 1 shows an electrostatic precipitator. general form; FIG. 2 is a view A of FIG. one; FIG. 3 is the same, top view.

The electrostatic precipitator includes a housing 1 with a gas inlet and outlet, precipitating 2 and 3 corona parts. Electrodes 2 and 3 are installed above the hopper with a flat bottom 4. On the flat bottom 4 there are fins 5 installed along the chain transmission 6 and the scrapers 7 connected by a chain transmission 6. The scrapers 7 and the chain transmission 6 form an electrostatic precipitator. Drive chain transmission 6 includes a shaft 8, shaft 9 and the engine 10.

The ratio of the height of the ribs 5 to the height of the collecting electrodes 2 is not less than 1: 500.

The electrostatic precipitator works as follows.

The dust-gas stream enters the case of 1 electrostatic precipitator. In the field of the corona discharge between the corona 3 and the collecting 2 electrodes, dust particles are charged and deposited on the collecting electrodes 2. The cleaned gas leaves the electrostatic filter housing 1. After shaking the precipitation 2 and corona 3 electrodes by the shaking mechanisms (not shown), dust conglomerates fall onto the flat bottom 4 of the bunker.

When the engine 10 is operated, the chain gear 6 and the scrapers 7 (dust extraction mechanisms) are driven through the shafts 8 and 9 and the fallen dust is removed. When moving scrapers 7 in contact with the upper surface of the ribs 5.

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This organization of dust removal provides for the formation of a layer of dust, the so-called "dust pillow", on the surface of the flat bottom of the bunker in the volume between the rows of the fins 5. This dust layer 5 plays the role of a shock absorber when the dust conglomerates fall and reduces dusting. The height P of the ribs 5 is interconnected with the height of the collecting electrodes N. At the ratio P: H of at least 1: 500, the least dusting is observed when dust falls into the bunker.

The use of an electrostatic precipitator will make it possible to reduce the dust emission at the outlet of the apparatus by 1.6 times compared with the protatype.

Claims (1)

Electrofilter, comprising a housing with gas inlet and outlet, precipitation and corona electrodes, installed above the hopper with a flat bottom, equipped with a dust discharge mechanism in the form of scrapers connected by a chain transmission, in order to increase the efficiency of dust collection by reducing the dust entrainment from the hopper when the electrodes are shaken due to the creation of a dust layer on the bottom of the bunker, the bottom is equipped with fins installed along the chain transmission, the upper surfaces of which touch the Rebko, wherein the ratio of the height of the ribs to the height of the collecting electrodes is not less than 1: 500. 1680340 Type L