SU833328A1 - Battarie-type cyclone - Google Patents

Description

(54) BATTERY CYCLONE

one

The invention relates to dedusting, is intended to trap dry dust from faded gases in dust collection systems of piping dryers at coal preparation plants, ashes from flue gas from boiler plants and other heat units, and can be used in the power industry and other industries.

Devices are known in which dry cleaning is carried out sequentially in two stages: in, cycling; large diameter tubes under the action of centrifugal filters; sludge and in battery cyclone dust collectors installed inside the large cyclone outlet or 2 and in series.

However, when these devices are used in dust collection systems, a vertical knee dryer is supplied with a knee at an angle of 90, which connects to the inlet of a large cyclone. Due to the high dust content of the exhaust gases, there is a significant deterioration of the large cyclone and the connecting leg connected to it, which requires constant repair, which is associated with high maintenance costs. In addition, the inlet knee and the cyclone connected to it creates great resistance, overcoming of which requires additional energy expenditure, the system has large dimensions, significant metal consumption.

A battery cell is known that contains a clean gas inlet chamber with a lower axial inlet port, a purified gas collector located above it, and cyclone elements mounted around the chamber and connected in pairs with common inlet headers with its lower and upper parts. The device provides

low hydraulic resistance and compact W,

The disadvantage of it is the absence of preliminary separation of the gas stream and, as a consequence, increased wear of the cyclone elements. .

The purpose of the invention is to increase the service life of cyclonic elements due to the preliminary inertial separation of large particles.

The goal is achieved by the fact that the battery cyclone is equipped with an additional dust bunker placed along the input chamber of the gas to be purified and the inlet manifolds of the cyclone elements, while the collectors are made in the form of vertical ducts, to the upper part of which the inlet pipes of the cyclone elements are attached.

In addition, the axial inlet of the chamber of the input of the gas to be purified is equipped with a diffuser nozzle.

FIG. 1 shows the proposed battery cyclone, cross section; in fig. 2 shows section A-A in FIG.

The battery cyclone contains a chamber 1 for introducing the gas to be cleaned with a lower axial inlet nozzle 2 equipped with a diffuser nozzle 3. The chamber communicates with vertical ducts 4 with the inlet nozzles 5 of cyclone elements 6. The flues 4 are input headers in pairs installed around the chamber 1 of cyclone elements 6, exhaust pipes 7 of which are connected by a collector 8 of purge gas. Under the chamber 1 and the ducts 4, an additional field bunker 9 was installed.

The device works as follows.

Dust-laden gas, for example, from the dryer pipe, through the inlet 2 and the diffuser nozzle 3 enters the chamber 1, where it changes its direction to be distributed through the ducts 4. A large part of the coarse particles are deposited due to the decrease in velocity by the flows

Inertial forces in the bunker 9. Gas with the remaining dust particles is cleaned in the cyclone elements 6 and enters the collector 8 of the purified gas.

The proposed device, possessing compactness, low hydraulic resistance and low metal consumption, allows for 10 efficient gas cleaning from the core with different dispersity, and the service life of cyclone elements is significantly increased.

Claims (3)

1. A battery cyclone containing a chamber for injecting a gas to be purified with a lower axially inlet nozzle, a collector of purified gas located above it and cyclone elements mounted around the chamber connected in pairs by common inlet manifolds with its lower part, characterized in that services of cyclone elements due to the preliminary inertial separation of large particles, it is equipped with an additional dust bunker placed under the chamber of the input gas to be purified and the input collectors of the cyclone elements, and that the collectors are made in the form of vertical ducts, to the upper part of which, the inlet pipes of the cyclone elements are attached. 2. Cyclone according to claim 1..dlicha. y u u and with the fact that the axial input the nozzle of the gas inlet chamber is provided with a diffuser nozzle. Sources of information taken into account in the examination 1. USSR author's certificate K 362645, cl. B 04 C 7/00, 1968.. 2. US patent No. 2632527, cl. 55-344, 1953. 3. The patent of Switzerland No. 493275, cl. B 04 C 5/04, - 1970 (prototype).