Electrostatic spraying machines for powder coatings have appeared in the market and have been popularized and promoted all over the world. This equipment is also becoming more and more popular. However, when using this high-pressure airless sprayer equipment, the discontinuity of the workpiece during the spraying equipment and the quality of the powder itself, as well as the influence of the stroke of the spray equipment, there will always be some powder that is not fully utilized. Collected in time, it is easy to pollute the environment. If it is treated as waste powder, the waste is too large. If it is used repeatedly, it contains many unusable waste powders, which will affect the quality of the coating.
In actual use, due to various factors such as equipment manufacturing and technology, there are always some shortcomings in the recovery device. Therefore, people have been looking for an ideal powder recovery system to solve the problem of powder recovery during spraying equipment. This device can be divided into four parts: the suction section, the separation section, the filtration section and the discharge section. The suction section consists of a freely adjustable wind panel, an adjustment system and a tuyere. Its function is to draw powder dust or unused powder floating in the air from the spraying equipment room into the separation system to separate it.
The separation section of the sprayer consists of a cyclone separation drum, a filter screen and inlet and outlet ports. Its function is to make the available powder into the original powder box and mix with the original powder through a specific cyclone separation cylinder device, and then enter the spraying equipment cycle again, while another small particle powder is difficult to adsorb in the electric field of the spraying equipment. Bring electricity to electronics. If these waste powders are not added to the original powder in time, the amount of powder available in the original powder will be less and less, and the effective powder of the spraying equipment per unit time will become less and less, resulting in the workpiece film of the spraying equipment. The thickness is getting thinner.
The powder and gas mixture from the separation section enters the filtration section, and the filtration section consists of a filtration chamber, a waste toner collection box, and a clean gas system. At the same time, the pulse period and airflow intensity can be adjusted according to the actual production conditions to achieve the best recovery effect. Here, the filter element and the pulse gas are more critical. If the filter element is not good, it will easily lead to unclean filtration, so that the discharged fine powder will enter the atmosphere and affect the surrounding environment. In severe cases, the local dust concentration will be too high, causing an explosion.
Concerned about surprises
Label: Spray equipment Powder coating Filter screen Electrostatic spraying Working principle
Previous: Degreasing method of organic solvent in electroplating production line Next: Use airless spraying machine to pay attention
Agricultural Machines,Farm Tractor,Lawn Tractor,Agriculture Equipment
QINGDAO SANJET NEW POWER MACHINERY CO., LTD. , http://www.sanjet.net