Boiler dust collector bag cage skeleton :
The boiler cage of the boiler dust collector adopts a round structure. The longitudinal ribs and anti-retaining rings of the bag cage are evenly distributed, and have sufficient strength and rigidity to prevent damage and deformation. The length of the cage bone fully considers the heat shrinkability of the filter bag. A "η" shaped cold stamped short tube is installed at the top to ensure the verticality of the bag cage and to protect the filter bag mouth during spraying.
Boiler dust collector bag cage is made of 20 # carbon steel. It is formed at one time using a cage bone production line to ensure the straightness and twist of the cage bone. The filter bag frame is smooth without burrs after welding, and has sufficient strength to not desolder. No desoldering, false soldering and missing soldering.
The boiler cage of the boiler dust collector uses organic silicon spraying technology, and the coating is firm, wear-resistant and corrosion-resistant. Its anti-corrosion treatment meets the requirements of use temperature, humidity, and flue gas, and the surface of the treatment layer does not fall off, which prevents the dust collector from working for a while. Corrosion of the back cage bone and the adhesion of the filter bag ensure smooth bag changing and reduce damage to the cloth bag during the bag changing process. The manufacture of filter bag cage bone frame should be carried out according to JB / T5917-91 standard. At the same time, the following conditions are met: the distance between the support rings is ≤200mm, the vertical deviation between the support rings and the vertical ribs is -1 ° to + 1 °, and the deflection of the cage frame is maintained within a range of 1.5mm every 305mm in length. In addition, manufacturing tolerances for the diameter and length of the cage frame should be as close as possible to the upper deviation.
The size of the boiler cage of the boiler bag of the dust collector meets the requirements of close cooperation with the filter bag, and plays a role of supporting the filter bag and keeping it in a certain shape under the condition of filtering and cleaning. The filter bag frame adopts _20 # cold drawn wire. Production, multi-point welding automatic production line production, to ensure the strength of the frame, prevent the impact of welding burrs on the filter bag, reduce friction with the filter bag, and use special coating anti-rust measures to extend the service life of the filter bag frame. Bag cages are required to be evenly distributed with supporting rings and longitudinal ribs, and have sufficient strength and rigidity to withstand the gas pressure of the filter bag in the state of filtering and cleaning, and there is no desoldering of the solder joints; the axial perpendicularity deviation of the bag cage is ≤ 2.4cm; all the solder joints of the bag cage are firmly welded, and there is no desoldering, false soldering and missing soldering.