SU1274738A2 - Filter for cleaning high-temperature gases - Google Patents

Abstract

The invention relates to filters for cleaning high-temperature gases, can be used in the chemical industry, improves regeneration efficiency and reduces the cost of its implementation. The filter includes a housing 1 with bunkerdm 2, filter sleeves 5 placed in the housing, a device for pulse regeneration of the filter, including a compressed air receiver 6, equipped with an atmospheric valve 8, valve 9, pulsed tubes 10 with valves П and nozzles 12. The filter is equipped with unit 14 pulse regeneration and a nozzle 15 installed in the receiver housing, with a conduit 16 connected to it. A shut-off valve 17 is located on the conduit. The unit does not communicate with the Executive Mechanism 18 (L time relay 19 connected to the executive m mechanisms 20 valves 11. 1 Il.

Description

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The invention relates to filters for cleaning high-temperature gases from dust and is an improvement of the device according to the authors. St. No. 1118393,

The purpose of the invention is to increase the efficiency of filter regeneration and reduce the cost of its implementation.

The drawing shows a printable filter circuit for cleaning high-temperature gases.

The filter for purifying high-temperature gases includes a housing 1 with a bun-collector 2 and nozzles 3 and 4 of dirty and clean gas, respectively. In the filter housing 1, filter sleeves 5 are placed, which are regenerated by supplying pulses of compressed air. The device impulse filter regeneration consists of a compressed air receiver 6 having a common heat exchange surface 7 with a clean gas filter chamber. The compressed air receiver 6 is equipped with atmospheric 8 and purge 9 valves and impulse tubes 10 with quick-acting valve panels 1 1 and nozzles 2 that are connected to the filtering sleeves 5. The filter by the clean gas connection 4 is connected to the 13-device.

The filter is equipped with a pulse regeneration setting device 14 and a nozzle 15 installed in the housing of the receiver 6, to which the conduit 16 is connected. executive mechanisms 20 high-speed valves II.

The filter for cleaning high-temperature gases works as follows.

Dusty gas with temperature C enters the filter housing 1 through pipe 3 of dusty gas, is filtered through sleeves 5 and clean gas through pipe 4 is removed from the filter by a good device 13. Through the heat exchanging surface 7, the purge air is heated and the pressure rises .

Upon reaching the maximum permissible hydraulic resistance

the filter is regenerated. To do this, from the generator 14 of the pulse regeneration, a command is sent to the shut-off actuator 18

valve 17, and from the conduit 16 through the nozzle 15 into the receiver 6 injects, with water. After 4-5 seconds, the shut-off valve 17 closes. Simultaneously with the team to close the executive

the mechanism 18 from the setting device 14 of the pulse regeneration a pulse arrives at the time relay 19, which after 2-3 seconds (the time required for the evaporation of water) gives a signal to open the high-speed valves 11. The latter open at 0.1-0, 5 s, and compressed air through the impulse tubes 10 through the nozzles 12 flows into the sleeves 5, while injecting gas into them from the clean gas chamber. In the sleeves 5, an overpressure is created, the dust is removed from the filter fabric and is deposited in the bin-collector 2. After closing the quick-action valves 1I, the receiver 6 is blown. time with valves 8 and

9 is not shown), and the receiver 6 is blown with air due to the vacuum in the chamber of clean gas generated by the exhaust device 13. The receiver 6 is purged to fill it with cold atmospheric air in order to ensure that the maximum mass of air heated by the heat exchange surface 7 enters it. receiver purge 6

valves 8 and 9 are closed at the command of time relay 19 and the heating of the purge air begins again.

Claims (1)

Invention Formula Filter for cleaning high-temperature gases according to ed.St. No. 1118393, characterized in that, With the aim of increasing the efficiency of regeneration and reducing the cost of its implementation, the filter additionally contains a nozzle with a water conduit connected to it, installed in the housing compressed air receiver, pulse regeneration unit, time relay and shut-off valve with actuator installed on water 3 12747384 In this case, the output of the setpoint pulser, and through a time relay, is connected with the executive regeneration by the actuator, by the mechanisms of the high-speed response mechanism of the shut-off valve of the valves.