Efficient recycling of powder coatings in the future

China Coatings network
: powder coating of the main recycling methods include filter-type recovery and cyclone, small cyclone combination. By improving the recycling system, more efficient and clean coating can be achieved.
1 filter detection cleaning device powder recovery filter should be scrapped and there is no uniform scale, often the filter itself has been damaged cracking before replacement, the result is that the powder has blocked the subsequent ultimate filter material - filter cotton or filter box; Or see the powder spill seriously before thinking of replacing the filter element.
since the filter element is used to intercept powder, separate powder and air by pores, there is a risk that the pores will be blocked. The pores are blocked and the recovery efficiency is reduced, which cannot be observed and determined by the naked eye. Therefore, a device is designed to automatically clean the filter element and detect the degree of penetration of the filter element, specifying that when a certain degree of blockage (e.g. 50% or high or low) indicates insufficient recovery capacity, the filter element is scrapped. If the penetration of each filter element can be continuously and automatically detected online, such as the air flow rate, the management of the equipment will rise to the level of digitization, and the recovery effect can be expressed in numbers.
2 variable frequency recovery system for the recovery system, a stable air flow means a stable recovery effect. However, under the same recovery capacity, different work parts, different adhesion efficiency of powder, coupled with some large work parts, long work parts of the guidance, will also produce powder spillage. The selection of variable frequency fan can adjust the recovery air volume within a certain range, which not only meets the requirements of noise reduction, but also meets the requirements of recycling capacity.
Some production line design capacity is limited, but sometimes too many production tasks, the use of faster chain speed can solve the production needs, but if the recovery of wind must, will lead to serious powder spillage, variable frequency recovery fan can adapt to a certain increase in production capacity, but also to ensure the recovery effect. Variable frequency recovery system, according to the recovery effect can increase or reduce the amount of air, so that powder coating production has a certain degree of mobility. When the production volume is small or the powder spray quantity is small, it can reduce the fan wind volume and have a certain energy saving effect.
3 cleaning powder room technology the most basic cleaning powder room should be clean and hairless, no impurities, can form a good airted space.
more advanced powder room should be powder-free accumulation. The powder room with the bottom blow-sweeping device can deliver the over-sprayed powder in time for use in the powder barrel, so that the amount of powder that needs to be turned around by the spray is very small, and the powder can be used in time. Quality problems have occurred and the amount of waste powder produced is greatly reduced. A higher level of cleaning powder room should be hard and smooth room wall, do not adsorption too much powder, easy to clean. Eisenmann uses glass (943, -4.00, -0.42%) spray chambers instead of traditional metal and plastic (10160, -20.00, -0.20%) materials, and the chamber wall absorbs powder significantly. Metal powder room because of its conductivity, the powder will adsorption to a considerable thickness. Plastic powder room due to high surface resistance, powder is not easy to clean. Glass powder room does not conduct electricity, low surface resistance, powder will not adsorption too much and easy to be cleaned. The good transparency of the glass makes it easier for the operator to observe the state of the spray gun. Glass is also a non-combustible material to prevent fire hazards.