how powder coating spray gun works

2016/10/24 8:48:18

Powder coating of electrostatic spray machine appeared in the market, quickly in the world to popularize and promote, this device is more and more people's favor. However, the high-pressure airless spraying machine equipment, the quality of the workpiece in the process of continuous spraying equipment and powder itself, and the effect of spraying equipment of the trip, there will always be a part of the powder is not fully used, this part of powder if not timely collect, easy to pollute the environment, when processing waste powder, waste too large, for repeated use, which contains many available waste powder will affect the quality of coating.

In actual use, because of equipment manufacturing, technology and other factors, the recovery device always has this kind of problem. Therefore, people have been looking for an ideal powder recovery system, in order to solve the problem of powder recycling in the process of spraying equipment. The device can be divided into four parts, the suction section, the separation section, the filtration section and the discharge section. The suction section is composed of a wind plate which can be freely adjusted, an adjusting system and an air inlet. It is from the room will be sucked into the spraying equipment floating separation system in the powder dust in the air or unused powder.

The separation section spraying machine by cyclone separator, filter screen and an air inlet and an air outlet. It is separated by a cylinder device specific to cyclone, can use the powder into the powder box with the original powder, spraying equipment again into the cycle, and the other part of the powder particles is small because of the difficulty of adsorption to the electronic and electric field in spraying equipment. If these waste powder is not timely and continuously added to the original powder separation, will make more and less amount of powder can be used raw powder, powder spraying equipment and effective unit time is less, resulting in more and more thick film coating equipment for thin workpiece.

The powder and gas mixture which is separated from the separated section enters the filter section and the filter section is composed of a filter chamber, a powder coating chamber and a cleaning gas system. At the same time, the pulse can be adjusted according to the actual situation to adjust the cycle and air flow intensity, in order to achieve the best recovery effect. In this, the filter and pulse gas is more critical. If the filter is not good, it is easy to cause the filter is not clean, so that the discharge of fine particles into the atmosphere, to the surrounding environment caused by the impact, severe local dust concentrations will be too high, causing the explosion.

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