Dust Removal Equipment
With the increasingly strict environmental protection requirements, small and medium sized boilers in the industry are widely used and can meet the requirements of dust emission standards are dry dust collector (namely, bag dust collector and multi-tube cyclone dust collector) and wet dust collector with water film dust removal
The working principle of description
After the dust and smoke gas enters the dust collector and passes through the press cloth, the dust and dust will be captured by the press cloth due to the functions of screen interception, inertia collision, electrostatic attraction and diffusion, etc. The clean air flowing through the filter cloth will be discharged by the outlet.The dust layer deposited on the press cloth falls into the dust hopper through the dust removal process.The initial dust layer formed on the press cloth is called the primary dust layer. After the formation of the primary dust layer, it becomes the main filter layer of the bag dust collector.The effect of bag dust removal is related to many factors, but mainly depends on the material of press cloth.
The working principle of description
The dust collector is a cyclone type dust collector. When the dust gas enters the dust collector, it rotates at high speed inside the cyclone through the ceramic guide
Under the action of centrifugal force, dust and gas are separated. The dust falls in the dust collecting box and is discharged through the dust discharging valve. The purified gas forms an upward swirl and is collected in the gas collecting room through the exhaust pipe and discharged through the chimney to achieve dust removal effect.
Water film dust ollector
The water membrane precipitator is composed of shell, nozzle
and sewage outlet.The flue gas enters from the lower part of the cylindrical shell in a high-speed tangent direction
In, along the cylinder wall rotation and up, and nozzle along the upper circumference of the tangent direction of uniform spray, the formation of water film in the inner wall of the shell, due to the effect of centrifugal force, smoke and dust is thrown to the tube wall, and is stuck by the water film together with the water film through the sewage outlet into the sewage sedimentation tank, purification of smoke and gas is discharged from the upper part of the shell.
As the separated smoke and dust continuously flow out with the water film, it cannot be taken away by the smoke and gas for the second time, so its dust removal efficiency is relatively high, and can remove small dust particles and can also remove sulfur dioxide, sulfur trioxide and nitrogen oxide in the flue gas part.The shell and metal parts of this dust collector are susceptible to corrosion.The cylinder body is built with granite (granite) masonry, which replaces the metal cylinder to resist corrosion and wear resistance, has a long service life and a small maintenance workload, so the granite water membrane dust collector has been widely used in industrial boilers.
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