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1. Overview and Treatment Process of Polishing Dust
A large number of suspended particles and dust are generated during grinding and polishing operations in factory workshops. Such dust has strong diffusivity and high concentration. Direct discharge will not only pollute the atmospheric environment, but also damage the respiratory health of operators through inhalation. Meanwhile, dust accumulation may cause failure of workshop equipment. To solve the dust pollution problem of enterprises and meet environmental protection requirements, a polishing dust water spray dust removal project is specially launched. The water spray process with cyclone plate waste gas dust collector as the core is adopted to capture dust through efficient gas-liquid contact to realize dust purification and compliant discharge.
2. Core Treatment Process of Polishing Dust
Waste gas path: Polishing dust source (grinding and polishing machine) → Dust suction hood collection → Branch pipe → Main air duct → Cyclone plate waste gas dust collector (spray purification + dehydration and defogging) → Chimney → High-altitude compliant discharge
Exclusive collection design: Special dust suction hoods are equipped for different types of grinding and polishing equipment. Combined with the reasonable layout of branch pipes and main air ducts, a negative pressure collection system is formed to ensure that dust is efficiently captured from the source, avoid diffusion in the workshop and guarantee the air quality of the operation area. A horn mouth and umbrella-shaped combined nozzle are specially arranged at the end of the air inlet pipe to make dust-containing gas enter the dust collector evenly and improve the subsequent washing and purification effect.
3. In-depth Analysis of Water Spray Dust Removal Process
This project adopts cyclone plate waste gas dust collector as the core equipment. Dust purification is realized through the synergistic effect of cyclone centrifugation and water spray adsorption. The equipment has simple structure and economical cost. It is mainly composed of tower body, three-stage filter tank, air inlet pipe, exhaust pipe and spray system. It is specially suitable for the treatment of particles and dust generated by factory grinding and polishing.
Cyclone Plate Waste Gas Dust Collector: Efficient Dust Catcher
The dust purification process is divided into three core stages: spray adsorption, centrifugal separation and dehydration defogging, realizing efficient dust capture and separation of clean gas.
1. Spray adsorption stage: Under the suction of the fan, dust-containing waste gas enters the cyclone tower, rotates and rises along the tower body and accelerates through the cyclone device. The spray system inside the tower atomizes the absorption liquid to form tiny water droplets with the specific surface area increased by more than 2000 times. These water droplets collide and adsorb with high-speed rotating dust particles to make dust particles adhere to the surface of water droplets.
2. Centrifugal separation stage: The water droplets adsorbed with dust are thrown to the tower wall under centrifugal force, and then drop to the liquid collection tank at the bottom of the tower under gravity. Dust particles settle with water droplets to realize gas-solid separation.
3. Dehydration and defogging stage: The purified gas still contains moisture. After entering the dehydration and defogging device, water droplets are thrown to the tower wall to form liquid flow under accelerated centrifugal force, which effectively separates moisture in the gas and avoids the increase of gas humidity caused by moisture backflow. Finally, the purified gas is sent to the chimney through the exhaust pipe for high-altitude discharge.
The equipment is equipped with an automatic water replenishment system. The treated waste water is not discharged in principle. Dust settles at the bottom of the tank or floats on the water surface and needs regular fishing without secondary pollution.
4. Compliance Discharge Standard of Polishing Dust Treatment
The waste gas discharge after treatment strictly complies with Guangdong local standards to ensure environmental compliance:
Implement the second period standard of Emission Limit of Air Pollutants (DB44/27-2001).
Dust emission concentration ≤120mg/m³
Secondary standard of the second period of Emission Limit of Air Pollutants (DB44/27－2001): Tin and its compound emission concentration ≤8.5 mg/m³
Comply with ISO1400 international general environmental management standards.
5. Core Advantages of Water Spray Dust Removal Equipment
1. High dust removal efficiency: With the dual assistance of atomized water droplets and cyclone centrifugation, the capture rate of grinding and polishing dust is more than 90%. The dust concentration after treatment is stably controlled within 120mg/m³, which is better than the standard requirement.
2. Strong adaptability: It can be flexibly applied to grinding and polishing scenarios in metal, plastic, electronics and other industries. The equipment has compact structure, and the installation layout conforms to factory production requirements without affecting normal operation.
3. Economy and environmental protection: The equipment has low cost and low energy consumption. The automatic water replenishment system reduces operation and maintenance workload. Waste water is recycled without discharge. Dust only needs regular fishing without secondary pollution, and the operation cost is controllable.
4. Stable and reliable operation: The cyclone plate structure is mature in design. The spray and dehydration systems operate coordinatively. It can adapt to the dust treatment demand of long-term continuous production in the workshop with low equipment failure rate.
6. Polishing Dust Removal Project Case
With mature dust treatment technology, Zhonghuan Lvzhou has provided polishing dust treatment solutions for many enterprises in different industries. The equipment operates stably after commissioning, and all dust emissions meet standard requirements, winning customer recognition. Typical cases are as follows:
Zhonghuan Lvzhou Environmental Protection focuses on industrial dust treatment. Customized dust removal solutions can be provided according to the number of grinding and polishing equipment, dust output and on-site working conditions of the factory. If you have demands for equipment consultation, on-site survey or scheme design, please contact 158-5314-5085 at any time. We provide one-stop environmental protection services including design, construction, operation and maintenance.
