In baghouses that handle exhaust gas from wood chip boilers, rice husk boilers, aluminum regenerators, and smelting furnaces, combusted dust in the furnace may enter the cabinet with the air flow from the air duct, causing the dust that accumulates on the filter cloth to catch fire. , causing accidents. In baghouses that handle flue gas boilers, husk boilers, aluminum regenerators, smelting furnaces, etc., the combusted dust in the furnace may enter the tank with the air flow from the air duct, causing the filter cloth to accumulate on the filter cloth. The dust on fire caught the accident.
In order to prevent Mars from entering the bag filter, the following measures should be taken.
1 Set pre-precipitator and cooling pipe. The picture shows a cyclone or inert dust collector as a pre-dust collector to trap coarse dust and Mars. Particle Mars, which is too fine in this way, is not easy to trap. In most cases, particulate dust can burn out before entering the dust collector. Set the cooling pipe after the pre-dust collector and control the flow rate in the pipe to make it as low as possible. This is a relatively reliable technical measure that allows the gas to have a sufficient residence time in the pipe.
2 Cool the spray tower. Gas cooling method with direct water spray. In order to ensure the safety of dust-containing gas in the bag filter, the cooling water supply is controlled. Most of the burning dust can be cooled upon contact with the fine water droplets, but the water droplets are easy to gasify. In order to allow the combustion dust not yet in contact with the water droplets to cool, there should be necessary space and residence time.
Under special circumstances, the combined use of a spray tower, a cooling pipe, and a pre-dust collector will completely prevent the mixing of Mars.
3 The installation of Mars traps on pipelines is a simple and feasible method. There are also moments when Mars passes through the catcher, which can send electrical signals and alert them. At the same time, stop the operation or change the gas circuit.