SU1165437A1 - Bag filter - Google Patents

Description

2. A filter according to claim I, characterized in that the valves of the purge and purge gas sections are provided with a common actuator with a rod and installed in an intermediate chamber with the ability to move two plates with springs between them separated by a washer, while the filter is equipped with additional washers, one of which is fixed above the top, and the other - under the bottom plates.

3. The filter according to claim 1, characterized in that the valves of the section for purified and purge gases are equipped with individual actuators, while the valve plates are located on the side of the high pressure zone under the valve seats.

This invention relates to a technique for cleaning gas from dust and can be used in various industries.

A multisection bag filter with disc valves for cleaned and purge gases is known, in which a purge manifold is placed above the sleeves and cleaned between them, which allows to increase the dimensions of the valve plates and change the hydraulic resistance without changing the dimensions of the filter.

The purpose of the invention is to improve the performance and reliability of the filter.

FIG. 1 shows schematically a filter with a valve section, made with a common actuator of the cleaned and purge gas valves, general view; in fig. 2 - then with separate valve actuators for purged and purge gases; in fig. 3 shows the arrangement of the valve plates in various stages of the filter operation.

The filter with one common valve drive section (Fig. 1) includes a housing 1 with filtering sleeves 2, a collector 3 of dusty gas, a hopper 4 for collecting dust, a chamber 5 of purified gas, a collector of purge 6 and purified 7 gases separated by intermediate chambers 8, plates purge valve 9 and purified 10 gases, valve seats 11, lower 12, middle 13 and upper 14 restrictive washers, lower 15 and upper 16 springs, rod 17 and actuator 18 of valves.

The filter works as follows.

The gas to be cleaned enters the collector 3 of the dusty gas, then into the hopper 4 and filter sleeves 2. The gas cleared of dust in the sleeves enters the clean gas chamber 5 and then passes through the intermediate chamber 8 to the clean gas collector 7 located at the top and is removed from apparatus (position 1, fig. 3).

The filter works under vacuum. Upon reaching the limiting hydraulic resistance of the hoses, they are regenerated by blowing, for which the valve actuator 18, the rod 17, is activated.

starts to lift up and the washer 13 through the spring 16 lifts the plate 10, pressing it to the saddle 11, after which the movement of the rod stops (position 2, fig. 3). Then, after a predetermined period of time, the actuator re-activates, the boom rises again, by pulling the washer 12, the plate 9 from the saddle 11, moves the plate for a certain turn and stops. Purging gas begins to flow into the intermediate chamber 8 from the collector 6, which then passes into the sleeves of the regenerated section (position 3, fig. 3). Dust is discharged into the hopper 4. Then, after a predetermined pause, the actuator lowers the rod downwards, the washer 13 presses the plate 9 against the saddle 11 through the spring 15 - the blowing stops (position 4, Fig. 3). After the next pause, the drive lowers the bar even lower, separating the plate 10 from the saddle 11 and moving it a certain course, after which the bar stops and the worker

the process returns to the filtering mode (position 1, fig. 3).

The filter with separate section valve drives (Fig. 2) includes a housing 1 with filter sleeves 2, a manifold 3

dust gas, dust collection bin 4, purified gas chamber 5, purge collectors 6 and purified 7 gases, separated by intermediate chambers 8, purge valve 9 and cleaned gas plates 10, rods 17, valve seats 11 and valve control actuator 18.

Filter with separate valve actuators works as follows.

The dusty gas enters the collector 3 of the dusty gas, then into the bunker 4 and the sleeve 2. The gas purified from the sleeves

enters the chamber 5 of the purified gas, then through the intermediate chamber 8 passes into the collector of the purified gas 7 and is removed from the apparatus.

The filter works under vacuum.

Upon reaching the limiting hydraulic resistance of the hoses, they are regenerated by blowing, for which the actuator 18 is activated and the valve of the cleaned gas closes by pressing the plate 10 against the saddle 11. After a predetermined pause, the actuator 14 is actuated - the valve 9 of the purge valve is pressed from the saddle 11 and the purge gas from the manifold 6 through the intermediate chamber 8 passes through the sleeve 2. The settled dust is discharged into the hopper 4. Then, after a certain pause, the actuator closes the purge valve and after a pause, the other actuator opens to valve of the purified gas. In this case, the worker process returns to filtering mode again.

V

Claims (3)

1. HOSE FILTER, comprising a housing with filtering sleeves, dusty, purified and purge gas manifolds, intermediate chambers and purged gas and poppet valves, characterized in that, in order to increase the filter performance and reliability, the cleaned gas manifold, intermediate chambers, purge and dust gas collectors are arranged in series under each other. 2. Filter by π. 1, characterized in that the valves of the sections of the cleaned and purge gases are equipped with a common actuator with a rod and installed in the intermediate chamber with the ability to move two plates with springs between them separated by a washer, while the filter is equipped with additional washers, one of which is mounted above the top, and the other under the lower plates. 3. Filter by π. 1, characterized in that the valves of the sections of the cleaned and purge gases are equipped with individual actuators, while the valve plates are located on the side of the high pressure zone under the valve seats.