DPA series paint mist filter element

In industrial fields such as automobile manufacturing, furniture spraying, and aerospace, the paint mist generated by spray painting not only affects product quality, but also poses a threat to worker health and environmental safety. The DPA series paint mist filter cartridge has become the core equipment for solving paint mist pollution problems due to its efficient filtration, environmental friendliness, and durability. This article will comprehensively analyze the value of this product from the aspects of technical principles, application scenarios, core advantages, and usage and maintenance.

The DPA series paint mist filter element adopts a 3D diamond structure synthetic fiber material, which forms a honeycomb filter layer through multi-layer folding technology. This design expands the filtering surface area by more than twice, effectively intercepting impurities such as pigment particles, solvents, and adhesives in paint mist. It has a filtration accuracy of over 10 μ m and a particle interception rate of 99.8%. It also has water resistance and flame retardancy, and is suitable for various spraying scenarios such as water-based paint, oil-based paint, and powder coating.

The physical structure of the DPA series paint mist filter element is stable, and even after adsorbing a large amount of paint mist, it can maintain the honeycomb pores unobstructed, avoiding the pressure difference surge caused by blockage. The initial pressure difference is only 14Pa, and stable operation can still be achieved at a wind speed of 3.5m/s. It is recommended to replace the pressure difference with 300Pa, with a service life of up to 2-4 weeks (depending on the spraying amount). A single filter can capture up to 24kg of paint mist, significantly reducing the frequency of replacement.

1. In the car painting workshop, if paint mist particles adhere to the paint surface during the body painting process, it can cause defects such as orange peel and pitting. The DPA series filter can be installed at the air inlet or exhaust system of the spray booth, reducing the concentration of paint mist in the air to below 0.1mg/m ³, ensuring that the paint surface flatness meets the micron level standard and meets the quality requirements of high-end automotive brands.

2. Furniture spraying production line, wooden furniture spraying needs to retain natural texture, paint mist pollution will blur the wood grain and reduce glossiness. This filter element improves the uniformity of the paint surface by 30% through efficient filtration, while reducing the volatilization of organic solvents such as benzene and toluene, improving the air quality in the workshop, and protecting the respiratory health of workers.

3. In aerospace and rail transportation, the three-dimensional installation structure of DPA series filters (such as extended design) can fully utilize space in the spraying of large components such as aircraft bodies and high-speed railway carriages. A single device can handle an air volume of 20000m ³/h, meeting the demand for high production capacity. Its corrosion resistance can also meet the filtration requirements of special coatings, such as anti-corrosion primers.

4. The spraying of small components such as precision instruments, mobile phones, and computer casings requires extremely high cleanliness. The DPA series filter element can be combined with the F8 high-efficiency filter to form a two-stage filtration system of "coarse efficiency and fine efficiency", which controls the concentration of particulate matter in the air at ISO level 4 (equivalent to level 10 cleanroom standards), avoiding the decrease in product yield caused by dust.

1. Environmentally friendly design reduces the cost of solid waste treatment. The outer frame of the DPA series paint mist filter element is made of biodegradable cardboard box material, which can be directly incinerated after use without the need for classification and recycling, reducing the cost of hazardous waste disposal. Compared to traditional fiberglass filters, the amount of solid waste generated is reduced by 60%.

2. Long service life, saving replacement costs. Actual test data from a certain automobile factory shows that after using the DPA series paint mist filter element, the maintenance cycle of the filtration system has been extended from every 5 hours to every 2 weeks, and the service life of the third level F8 filter has been increased by 4 times, saving more than 200000 yuan in annual consumable costs.

3. Efficient dust containment, stable system operation, 3D structure ensures that the filter material maintains a porosity of ≥ 85% even after adsorbing paint mist, avoiding equipment shutdown caused by sudden pressure differences. A furniture factory case shows that after switching to DPA filters, the energy consumption of the spray room ventilation system is reduced by 15%, and the annual electricity cost is saved by about 80000 yuan.

4. Flexible installation, adaptable to various working conditions, providing various specifications such as standard bag, carton, and extended versions, supporting three-dimensional installation, reverse installation, and combination layout, and can adapt to different sizes of spray booth structures to maximize space utilization.

1. The filter element is clogged too early

Reason: Excessive paint spraying or insufficient pre filtration.

Solution: Install paint mist felt as a primary filter before the DPA filter element to intercept large particles of paint residue; Adjust the spray gun pressure to a reasonable range (0.4-0.6MPa) to reduce overspray.

2. The pressure difference rises too quickly

Reason: Incorrect installation direction of filter element or mismatched ventilation system airflow.

Solution: Ensure that the arrow direction of the filter element is consistent with the direction of the airflow; Select appropriate specifications based on the volume of the spray booth (such as using 10 standard filter cartridges for an air flow rate of 5000m ³/h).

3. Damaged filter element

Reason: Long term failure to replace resulted in paint mist hardening and puncturing the filter material.

Solution: Establish a pressure difference monitoring system and replace it promptly when the pressure difference approaches 300Pa; Avoid using corrosive cleaning agents to rinse the filter element.

4. Environmental dispute resolution

Reason: Users have doubts about the compliance of cardboard burning.

Solution: Provide incineration residue detection report to prove that the ash content meets the industrial waste incineration standards; Recommend collaborating with professional hazardous waste treatment institutions to ensure compliant disposal.