Section 1: Composition, Characteristics, and Application Range of PP Spray Towers
PP spray towers are composed of shell, circulating water tank, inlet section, spray layer, packing layer, demisting layer, outlet cone cap, observation holes, and more. They are made of PP material, offering UV resistance and aging resistance. For the treatment of inorganic waste gas, the liquid absorption and neutralization method is commonly used. This process and product feature simple structure, low energy consumption, high purification efficiency, and wide applicability. The packing uses high-efficiency, low-resistance Raschig rings, Pall rings, etc., and the spray layer is assembled with sufficient atomizing nozzles. The nozzles are designed for easy disassembly, facilitating cleaning of scale and blockages, as well as maintenance and replacement.
Ideal for the treatment of continuous and intermittent exhaust gas emissions; simple in process, with convenient and straightforward management, operation, and maintenance that won't affect the workshop's production; wide application range, capable of purifying multiple inorganic exhausts, water-soluble gases, and dusty gas particles simultaneously; low pressure drop, high operational flexibility, and excellent demisting performance.
Section 2: Working Principle of the PP Spray Tower
Waste gas is introduced into the purification tower through a duct, where the absorbent liquid, after being pressurized by a pump at the bottom, is sprayed down from the top. It passes through a packed bed, where the waste gas and absorbent liquid have a thorough gas-liquid contact, leading to an acid-base neutralization reaction. Finally, it returns to the bottom of the tower for recirculation. After purification, the waste gas is then dehumidified and defogged by a demister plate before being discharged into the atmosphere by a fan.
Section 3: Process Flow Diagram
Operation Instructions
1. Pre-test Preparation Work:
Prior to initiating this system, a comprehensive inspection is required. Cross-reference and verify each item against the installation diagram, ensure accuracy, and clear all visible debris within the system.
(2) Prior to initiating this system, all pipelines, equipment, and other facilities within the system must undergo the corresponding inspections to ensure their performance is good and meets the testing requirements.
(3) Prior to initiating this system, it is essential to confirm that the power system, water supply system, and drainage system compatible with this system are functioning properly and fully meet the requirements for the system's test operation.
2. Daily Startup Procedures:
Power on and sequentially start the circulating pump and fan. Check for any abnormal conditions in the working indicator lights.
(2) After completing the operation, sequentially shut down the fan and the circulating water pump.
3. Routine Maintenance Matters:
(1) Conduct weekly routine checks on the storage tank's fluid level to maintain proper liquid height.
(2) If the automatic topping-up device or the non-device for waste gas tower liquid level control fails, disconnect the power and restart it. If it still cannot return to normal operation after restart, check for loose connections at all circuit points and ensure that the circulating pump or dosing unit is operating normally.
(3) Regularly inspect the operation of the exhaust fan.
(4) Daily operation and maintenance of the waste gas purification tower are recommended to be handled by a designated person.
(5) Repair of purification tower equipment is not permitted while in operation.
