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Safety precautions in the study of high temperature flue gas treatment by cartridge filter

Article source: this site Author: admin popularity: second Time: 14:26, August 16, 2020【 large in Small

Filter cartridge a duster It is an efficient dust removal technology and equipment to control the national air pollution. It has been widely used in the research of chemical industry, metallurgy, mining, machinery, cement and other industries in China. The efficiency of the dust collector can be expressed by the gas loss of the dust remover. Cartridge filter The dust collector is composed of filter element or pulse injection. According to the installation methods, the cartridge dust remover can be divided into inclined plug-in type, side mounted type, hoisting type and top mounted type. According to the material of the filter cartridge, the filter cartridge dust remover can be divided into long fiber polyester filter cartridge dust collector, composite fiber cartridge dust collector, anti-static cartridge dust collector, flame retardant cartridge dust collector, membrane filter cartridge dust collector, nano cartridge dust collector, etc. Compared with other types of dust remover, the biggest advantage of the filter cartridge dust collector is that the dust removal efficiency has reached more than 99.99% in the actual teaching application, and its dust emission standard concentration can reach below 10mg / m3, even not reach 2mg / m3, and the basic function realizes zero emission. The dust collector is composed of filter element or pulse jet. According to the installation methods, the cartridge dust remover can be divided into inclined plug-in type, side mounted type, hoisting type and top mounted type. According to the material of the filter cartridge, the filter cartridge dust remover can be divided into long fiber polyester filter cartridge dust collector, composite fiber cartridge dust collector, anti-static cartridge dust collector, flame retardant cartridge dust collector, membrane filter cartridge dust collector, nano cartridge dust collector, etc.

Cartridge filter

Therefore, bag in the treatment of dust, smoke, carbon dioxide, dioxin pollution in the next 10 years to provide more rapid development. What are the precautions? When dealing with high temperature flue gas, the filter element dust collector?

1、 Check the cartridge dust collector before starting

1. All equipment parts are complete, with correct number and clear identification. All flange connection surfaces are tight without leakage, with complete insulation and good paint.

All parts of the platform, escalators and railings are solid and complete, the passage is smooth and the lighting is sufficient.

3. All bags are correctly installed and fixed on the flower board, and the whole dust collection bag framework is not deformed in the longitudinal direction.

4. Check that the lower ash pipe is smooth without leakage; one ash hopper heater is in good condition and can be put into operation normally; the temperature measuring point is installed in good condition.

5. The hopper level gauge is installed correctly, and the gray level indicates the actual matching.

6. No ponding was formed in the body, flue and pulse reaction tank, and all manhole doors and ventilation openings of dust removal chamber were closed.

7. There are no tools and other materials left in the body and flue.

8. Lift the outlet of the valve barrel dust collector, and the bypass valve is closed.

9. Check that the pulse timing system is normal, but the isolation should be started first.

10. Check that the lubricating oil level of each rotating machine, such as powder spraying fan and air compressor, is normal, and all the students rotate for standby working state of mechanical equipment.

Structure of cartridge dust collector

Secondly, the starting condition of the cartridge dust collector

1. Start the ambient air to compress the fan. The fan can work normally. Adjust the pressure of the air bag of the dust collector to 0.2 ~ 0.4MPa.

Flue gas inlet temperature of precipitator 2 ~ 120 ~ 180 ℃

Figure 3. Only after the boiler is removed from the oil and the coal enters into the coal for stable combustion, can the dust collector receive the flue gas.

4. Confirm that the bypass valve of the filter cartridge dust remover is closed tightly, and the baffle door switch at the inlet and outlet of each dust removal chamber can be flexible.

5. Whether the compression and air environment pressure meet the design requirements, put the ash removal system into operation one hour in advance, and start the small dust collector on the ash silo.

6. Place the ash hopper heating device 8 hours before starting the dust collector.

7. The working pressure and quality training of compressed air to ash cleaning system are qualified.

8. The compressed air pipeline and gas tank drain oil, the drain valve is opened, and there is no oil accumulation in the pipeline and gas tank