In order to provide metal workpieces with the required special mechanical, physical, and chemical properties, in addition to selecting suitable materials and processes, heat treatment is often indispensable (resulting in the generation of heat treatment fumes and exhaust gases). Quenching is an indispensable process in the heat treatment process, and the cooling fluid used for quenching is mainly cooling oil on the market. Quenching fumes are the large amount of fumes generated when high-temperature metal workpieces are cooled in cooling oil. Unlike catering fumes and industrial oil mist, quenching fumes are characterized by:

1. The generation of oil fumes is highly instantaneous and accompanied by significant impact force.

2. High oil content and high temperature may be accompanied by large flames.

3. The composition of oil fume is complex, containing carbon, smoke, and complex oils such as benzo [a] pyrene, benzo [a] anthracene, carbazole, and other polycyclic aromatic hydrocarbons.

After studying the characteristics of quenching oil fume, our company has developed an effective quenching oil fume purifier and quenching oil fume treatment process through long-term exploration and research.

Technical equipment features:

1、 Based on the actual on-site quenching situation, different front-end fireproof filtration devices are developed, which have the following characteristics:

1. Collect exhaust gas to the maximum extent possible.

2. The front-end fireproof filtration efficiency is high, intercepting and recovering 75% of oil and gas, reducing pollution to the back-end air duct and equipment

3. The front-end fireproof filtering device reduces the temperature of oil fumes and prevents fire hazards.

4. Its device is corrosion-resistant, easy to maintain, and has no vulnerable parts.

2、 According to different quenching oil tanks, different front-end devices are configured and different wind negative pressures are formulated. In response to the instantaneous strength and high oil content of oil fumes, an encrypted electric field is set up to facilitate the capture of oil fume particles.

3、 Adopting fire prevention measures, installing fire dampers, and maximizing the elimination of fires are beneficial for safe production.

4、 The residual exhaust gas from the front stage fireproof filtration device enters our company's independently developed high-efficiency quenching oil fume purifier. The purifier has a unique design and scientific multiple purification methods, with a purification efficiency of over 90%, which is better than the national standard. The gas is discharged through a 15 meter chimney at high altitude.

Quenching oil fume purification equipment, specialized equipment for heat treatment quenching oil fume purification, mature equipment technology, stable operation, high equipment purification rate of 98%, preventing flame combustion and fire occurrence, convenient for safe production, small size, small footprint, easy installation, low operating cost, no later consumables cost, has been widely used.