The PTFE tower internals produced by Dier Chemical Packing Co., Ltd. in Pingxiang City, Jiangxi Province (usually referring to tower internals made of PTFE as the main material, including distributors, distribution pipes, wire mesh demisters, regular packing, loose packing, support grids, pressure grids, sieve plates, etc.) are widely used in the treatment of corrosive media in the fields of chemical, pharmaceutical, environmental protection, etc. due to their unique material characteristics. The following is a detailed description of its characteristics and performance:

1、 Main features

The internal components of the PTFE tower have excellent corrosion resistance,PTFEIt can almost resist the corrosion of all strong acids, strong bases, organic solvents, and oxidizing media (such as concentrated sulfuric acid, aqua regia, chlorine gas, etc.), suitable for corrosive environments, avoiding pollution or failure of metal materials caused by corrosion, and extending equipment life. Wide temperature resistance range: Long term use temperature:-200℃ to+260℃, can tolerate higher temperatures in the short term (such as300℃), it can maintain stable performance under high temperature or deep cold conditions, with a non sticky surface and low friction coefficient. The surface is smooth and not easy to adhere to materials, reducing the risk of scaling and blockage. It is especially suitable for handling high viscosity or easily crystallized media, with an extremely low friction coefficient (about)0.04）Reduce fluid resistance and optimize mass transfer efficiency. High chemical inertness prevents chemical reactions with the medium, avoids the generation of by-products, ensures product purity (such as in the production of electronic chemicals and pharmaceutical intermediates), and is lightweight and flexiblePTFELow density (approximately)2.2 g/cm³）， Compared to metal internals, it is lighter and reduces the load-bearing burden of the tower. Complex structures such as regular packing, distributors, and support grids can be customized through processes such as molding and welding.

1.PTFE bulk packing:

2.Tetrafluoroethylene regular packing:

3.Tetrafluoroethylene riser distributor:

4.PTFE sieve plate:

5.PTFE support grille:

2、 Performance Performance

The mass transfer efficiency inside the PTFE tower is stable, but the surface wettability is poor. However, optimizing the internal design (such as corrugated packing and porous distributor) can improve the gas-liquid distribution and enhance the mass transfer effect. Suitable for absorption, distillation, extraction and other processes, especially for the separation of corrosive systems. Low maintenance and long life, excellent anti-aging performance, long-term use without mechanical damage（10Reduce the frequency of downtime and replacement for products over the past year. The self-cleaning feature of the surface reduces the need for cleaning and saves maintenance costs. Adapt to complex working conditions and withstand harsh conditions such as sudden temperature changes, corrosive gas-liquid two-phase flow, and high vacuum. Commonly used for sulfuric acid, hydrochloric acid, waste gas treatment (such as tail gas absorption in chlor alkali industry), and high-purity medium treatment in semiconductor industry. Mechanical strength limitationsPTFEThe mechanical strength is lower than that of metal (with a tensile strength of about)20-30 MPa）The interior design needs to be reinforced with structures (such as adding support rings, honeycomb design) or composite materials (such asPTFECover the metal skeleton to make up for it.

3、 Typical application scenarios

Chemical industry: Strong acid/Absorption tower and distillation tower for alkaline medium.

Environmental Protection Engineering: A scrubbing tower for the treatment of corrosive waste gases such as chlorine, fluorine, and sulfur.

Pharmaceutical and electronics: reaction towers and purification equipment for high-purity chemical production.

Wet metallurgy: a tower used in acidic solution extraction or electrolysis processes.

4、 Selection precautions

Structural design: Select the packing form (such as ball ring, wire mesh packing) or tray type based on the characteristics of the medium to ensure uniform distribution of the fluid.

Composite reinforcement: can be used for high mechanical load areasPTFEEnhance strength with composite materials such as fiberglass and graphite.

Installation method:PTFEThe coefficient of thermal expansion is relatively large, and it is necessary to reserve expansion gaps or use flexible connection structures.

Dier Chemical Packing Co., Ltd. in Pingxiang City, Jiangxi Province specializes in chemical separation equipment, metal and non-metal tower internals packing22In the year, we focus on research and development and production, committed to technology, guided by customer needs, providing high-quality products, and striving to create a green separation technology equipment industry. The company plans to do so in the future3-10Enter the capital market within the year and strive towards the goal of "a century old life, a billion dollar market value, and a century old enterprise".