In the pharmaceutical industry, companies often need to use large amounts of solvents, such as benzene, chlorobenzene, and chloroform. The volatile organic compounds (VOCs) generated from these solvents are a major source of process waste gas in pharmaceutical plants. Therefore, choosing the right waste gas treatment equipment to effectively address waste gas emissions has been an important topic explored by industry professionals.

Waste gas washing towers are ideal for purifying various waste gases and odors, especially suitable for environments with different air volumes and concentrations. Their main advantages include:

• Mature Technology: The technology has been well-developed over many years.
• Flexible Design: Can be designed flexibly according to customer needs.
• Easy Installation: The installation process is simple and time-saving.
• User-Friendly Control: Operations and monitoring are very convenient.

Additionally, the spray purification washing tower has other benefits:

• Low Investment: Relatively low initial investment.
• Low Operating Costs: Economical and efficient for long-term use.
• Flexible Choice of Spraying Liquid: Suitable spraying liquids can be selected based on different working conditions.

These features make the spray waste gas washing tower capable of meeting the deodorization needs of the pharmaceutical industry, ensuring a safe and environmentally friendly production environment.

Working Principle of Waste Gas Spray Purification Washing Towers

In the drying workshops or other processing areas of pharmaceutical companies, it is necessary to collect and purify the organic waste gases produced. Since the waste gas from these workshops is generated continuously and in large quantities, the pharmaceutical industry commonly adopts chemical spraying and photocatalysis as cost-effective and high-performance treatment methods.

The main function of the washing tower and spray tower is to allow the impurities in the waste gas to fully contact the neutralizing agents, thereby achieving gas purification. The structure of the spray tower includes:

• Inlet and Outlet for Waste Gas: For the entry and exit of gas.
• View Window: For observing the internal state.
• Maintenance Access: For easy maintenance.
• Internal Support Structure: To enhance stability.

Working Principle

The basic principle of the waste gas spray purification washing tower is to utilize the contact between gas and liquid to transfer the pollutants from the gas into the liquid. The tower is primarily made of PP material, and the packing uses PP material in the form of Pall rings or hollow balls to increase the contact area between gas and liquid, enhancing the transfer rate.

The waste gas is pressed into the purification tower's equal pressure chamber by a fan, first entering the bubbling section for treatment. It then passes through multi-stage packing and spraying devices, allowing the gas to fully contact the spraying liquid in a countercurrent manner, resulting in a neutralization and absorption reaction. Depending on the gas purification conditions, additional three-stage packing and spraying devices can be added, and finally, the gas flows into a liquid separation device for treatment before being discharged into the atmosphere. The treated gas meets national emission standards.

The application of waste gas spray purification washing towers in the pharmaceutical industry not only helps companies effectively control waste gas emissions but also ensures the environmental safety of the production process. Choosing the right waste treatment equipment can provide significant support for the sustainable development of enterprises.