Grading paint mist collector and its application

Abstract

The invention provides a graded capturing plate for painting mist and an efficient dry-type painting mist capturing and filtering device. A plurality of graded capturing plates for painting mist are arranged in each capturing device, and comprise flow equalizing and oil paint intercepting subunits; filtering materials for intercepting small oil paint particles are arranged in cavities; the flow equalizing and oil paint intercepting subunits are connected and supported by a box body made of a hardboard material; each capturing device is taken as an independent box body, and is conveniently and singly replaced. The capturing and filtering device has the advantages that complete air flow equalizing is realized, through the scientific design of the structural forms of all layers, air can pass through intercepting layers and filtering layers uniformly and completely, oil paint particles in air are completely intercepted and captured at all stages, the whole capturing and filtering device forms a three-dimensional painting mist capturing structure, the painting mist capturing and absorbing capability is improved greatly, the consumption of the filtering material is reduced, water pollution is completely eliminated, pollution on air and soil is reduced, the energy consumption is reduced, energy is saved, environment is protected, and the production cost is reduced.

Description

technical field [0001] The invention relates to the field of industrial coating, in particular to the field of capturing, separating and collecting painting mist, and is widely used in the coating fields of automobiles, hardware, home appliances and toys. Background technique [0002] With the rapid development of China's economy, environmental pollution has become more and more serious. In most parts of our country, human pollution of air, soil and water has far exceeded the capacity of nature. In recent years, smog has occurred frequently, and water pollution and soil pollution have become more and more serious. Painting is a highly polluting and energy-intensive industry. During the coating production process, a large amount of exhaust gas, waste liquid and solid waste will be generated. In order to maintain the constant temperature and humidity environment required for painting, painting also consumes a lot of electricity and natural gas. [0003] The traditional pai...

AI Technical Summary

Problems solved by technology

Traditional cardboard paint mist separators are often single-layer structures, and the air inlet is circular, such as figure 2 , the air inlet area of ​​the circular hole is very limited, the paint mist adsorption and accumulation is relatively concentrated, and the wind resistance is also relatively large, so the traditional cardboard paint mist separator with a single-layer circular hole structure has a limited ability to absorb and accommodate paint particles; a single inertia The impact principle, the capture efficiency of paint mist is also relatively low, the separated air not only cannot be recycled, but also has fire safety hazards

The two traditional dry separation technologies have limited adsorption capacity for paint particles, and both require frequent replacement of filter materials, which requires production shutdown, which not only increases the consumption of filter materials and labor, but also takes up a lot of production time. Enterprises High production costs and a lot of solid waste

The separation effect of paint mist is also very limited, and the separated air still contains a certain amount of paint mist, which not only cannot meet the air quality requirements for recycling, but also has a large fire safety hazard

Therefore, the traditional dry technology can only be applied in small-batch and intermittent spraying operations, and it is difficult to use it in large-batch continuous industrial operations.

Although the traditional wet Venturi or wet water curtain cabinet can achieve continuous separation of paint mist and industrialized large-scale continuous operation, this technology will generate a lot of waste gas, waste water and waste liquid, and consume a lot of fresh water. Constant temperature and humidity air, high energy consumption

Although some production lines using wet washing technology use circulating air technology, which reduces the consumption of fresh air and the amount of exhaust gas, the air humidity after Venturi washing is very high, and the temperature is low, so dehumidification and reheating are required, so the cycle is adjusted Windy air also takes a lot of energy

Images