Product Overview

PPH pickling towers are devices used to treat waste gas generated during pickling processes or to store and react pickling solutions. They are made of modified polypropylene (PPH) material.

Structure and Working Principle

Waste Gas Treatment Type: Similar in structure to PP scrubbing towers, it consists of a tower body, inlet, outlet, spray system, packing layer, and bottom collection tank. Waste gas enters from the bottom of the tower and comes into countercurrent contact with the absorbent sprayed from the top. Pollutants are neutralized or absorbed by the absorbent, and the purified gas is discharged after the droplets are removed by a demister.
Solution Treatment Type: Typically a cylindrical container with an inlet and sand inlet at the top, and a drain and filter/sand outlet at the bottom. When used for quartz sand pickling, acid and quartz sand enter the tank from the top, where the pickling reaction occurs. The waste liquid and quartz sand are discharged from the bottom.

Comparison with PP Scrubbing Towers

Features	PPH acid washing tower	PP washing tower
Materials	Homopolymer polypropylene (PPH) extruded sheets	copolymer PP or ordinary homopolymer PP sheets
Corrosion resistance	Extremely strong, especially suitable for strong oxidizing acids and mixed acids.	It is powerful, but may be insufficient for extreme working conditions.
Temperature resistance	High (long-term 90-100℃)	General (long-term ≤80℃)
Welding strength	High, the weld strength is close to that of the base metal.	Generally, it depends on the welding skills.
creep resistance	Good, it doesn't easily deform at high temperatures.	Generally
Applicable working conditions	High-temperature, high-concentration, highly corrosive acidic waste gas	Acidic and alkaline waste gases at normal concentrations and temperatures
cost	higher	lower
life	Longer lifespan under harsh conditions	Reliable lifespan under normal conditions

Application Areas

PPH pickling towers are specifically designed to handle harsher and more extreme acidic waste gas environments:

New Energy and Advanced Manufacturing:

In the new energy industries such as lithium batteries, hydrogen energy, and photovoltaics, our piping systems are specifically designed for transporting special media such as photovoltaic coolants and electrolytes. In semiconductor manufacturing, our products meet the requirements for transporting high-purity ultrapure water, specialty gases, and various chemicals, ensuring the cleanliness and stability of the production process.

Pharmaceuticals and Specialty Chemicals:

In pharmaceutical applications, our pipes are non-toxic, non-leaching, and easy to clean, suitable for critical processes such as pharmaceutical raw materials and purified water. Flame-retardant and conductive pipes provide safe solutions for hazardous waste gas treatment and dust control. In the chemical, power, and surface treatment industries, our products, with their excellent pressure resistance, corrosion resistance, and high-temperature resistance, serve pickling processes and the transport of various chemical media.

Environmental Protection and Municipal Engineering:

For the needs of textile printing and dyeing and wastewater treatment, our piping systems perform excellently in wastewater collection, transportation, and treatment, with corrosion resistance and anti-aging properties adapting to various complex working conditions. In waste gas treatment, our products are specifically designed to treat acidic, alkaline, and dust-containing waste gases, while simultaneously achieving efficient air replacement in fresh air systems, optimizing building energy consumption and air quality.

■ In the mining and metallurgical industries, our pipeline systems reliably transport media such as slurry, smelting waste, and cooling water in harsh mining and metallurgical environments, and withstand extreme conditions such as dampness, high impurities, and high temperatures in underground smelting, providing a solid guarantee for production operations.

Choosing us means choosing a professional manufacturing partner for PPH pickling tower.

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