The dust adheres to the outer wall when dusty gas goes though the bag. The air is discharged into the atmosphere through the bag, the pipe and induced draft fan. Solenoid valve which is installed in the entry channel of compressed air is opened every 10min. The compressed air goes into the bag and shakes off dusts in outer wall of bags.

Due to the low intensity of paper bag used in dust removal device, it is easily damaged when the compressed air drum. Then the nickel powder goes into the atmosphere from the tear. It causes flying the loss. If the air pressure is lower, because of the nickel powder too small, the adhesion is too strong, can not shake off from the bag wall. Therefore, the original dust collection device has the following problems: paper bag breakage large, resulting in spare parts-consuming, the replacement of the heavy workload, production is difficult to be normal.

Compressed gas, injection time with the required matching, resulting in the dusty gas can not be smooth filter, flash drying system capacity to reach the design capacity; nickel powder with the exhaust into the atmosphere, and on the surrounding air pollution to the environment this dust enters the body, can damage the respiratory tract, and the nickel metal can also cause damage to other organs of the body. This reason it is necessary to transform the original dust removal device.

Pulse bag type dust, the dusty gas imports into the middle of the box equipped with a number of bag through the bag so that the gas purification, the dust is separated in a bag outside surface. The purified gas into the upper box, the exhaust port. Pulse cleaning of the filter cycle, each row of the bag upper part is equipped with a jet pipe, connected to the pulse valve and the compressor air package, jet injection hole on the tube and each bag corresponds to pulse signal issued by the controller through the control valve so that to open the pulse valve.

Other ancillary systems of the other subsidiary systems and distribution systems, piping systems and accessories, both the conventional configuration. The transformation of ultrafine nickel powder production line cleaning equipment, cloth bags in the two months is not damaged, only the replacement of a solenoid valve, and compare to the former, it greatly reduce the running cost for metal powder supplier.

The pulse bag dust removal device solves the problems of high cost of production equipments and high waste of material flying in ultrafine nickel powder production. The production can also be normally operated and the running costs are reduced by 50%. Flying of nickel powder not only results in economic losses but also produce pollution to the surrounding atmospheric environment. Through the transformation, the dust recovery rate can reach 99% or more. It achieves the emission standards required by environmental protection departments. Through this transformation, nickel powder manufacturers gain some experience. And it makes a useful search for energy saving work.Source:http://www.mhcmp.com