SU1736572A1 - Filter - Google Patents

Abstract

The invention relates to the purification of gases from dust by filtering through porous partitions and can be used in various industries of the national economy. To increase the efficiency of regeneration of the filter septum by ensuring that nozzles are located along the central axes of the channels of the filter element and ease of installation. In a filter containing a housing, chambers of purified and unpurified gases, a pulsed regeneration unit consisting of main and impulse pipes, frames and nozzles, the filter septum consists of a set of elementary cells (channels) of the purified and unpurified gases, the nozzles of the regeneration unit are rigidly attached to the filter element. 4 il.

Description

The invention relates to devices for cleaning gases from dust by filtering through porous partitions, in particular, to filters with a developed filter partition formed by a plurality of elementary cells (channels) of square (rhombic) section, and can be applied in ferrous and nonferrous metallurgy, in the building materials industry and other branches of the national household.

The purpose of the invention is to increase the efficiency of the regeneration of the filter partition, its ease of installation and the operational reliability of the filter.

Figure 1 shows the filter; figure 2 - section aa in figure 1; fig.Z - filter unit; figure 4 - section bb in figure 2.

The filter includes a housing 1, chambers 2 and 3 of purified and unpurified gases, a filter unit 4 consisting of main and impulse pipes 5, frameworks b and a filter septum 7.

Filter partition 7 is made in the form of a set of elementary cells (channels) 8 and 9 of purified and unpurified gases.

The filter works as follows.

The dusty gas stream enters the chamber 3 of the uncleaned gas, then into the cells (channels) 9 of the uncleaned gas, is filtered through the filter septum 7, enters the cells (channels) 8 of the purified gas and, passing through the chamber 2 of the purified gas, is ejected from the filter. Dust filtered by a filter septum and layered on its surface in the cells (channels) of the unpurified gas is periodically pulverized by short pulses of compressed purge air flowing through the nozzle holes 10 exactly in the center of the open cells (channels) of the purified gas. In this case, uniform, optimal distribution of regenerating compressed air occurs in the cells (channels), which. eject "ru part of the purified air

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from the chamber of purified gas, passes through the filter wall in the opposite direction of the filtration process and, separating the settled dust, dumps it into the bunker. When mounting or replacing the filter septum 7, the filter unit 4 is disconnected from the compressed air supply pipe. The filter septum 7 is stretched on the frames 6 and inserted into the opening of the partition 11 between the chambers of the purified and unpurified gases.

Accurate distribution of jets of regenerating compressed air through the cells (channels) provides deep regeneration of the filter septum with optimal specific consumption of compressed air, which makes it possible to reduce the hydraulic resistance of the filter while reducing energy consumption, while eliminating the impact and loss of energy on the closed ends of the cells. (channels) of unrefined gas and their premature wear,

The layout of the main pipes and their use as a rigid rigid construction of the filter unit do not require external connections to form the cells (channels) of the filter septum. This greatly simplifies the execution of operations related to h; mounting and replacing the filter septum, which boils down to releasing the quick-release fasteners on the flexible insert of the main tube and sealing frame of the filter unit and removing or putting on (stretching) the filter cloth.

Claims (1)

Claims of Invention A filter comprising a filter element of a plurality of rhombic shaped channels plugged in staggered order from above and below, and a pulse regeneration unit comprising main and pulse pipes and nozzles located above the top of each open channel of the filter element, characterized in that in order to increase the regeneration efficiency by positioning the nozzles along the central axes of the channels of the filter element and simplifying its installation, the regeneration unit is rigidly attached to the filter lement. 4G A-A rf Schi I ftraJ SchigZ