Industry applications of dewatering screens

Market size growth: Globally, the market size of dewatering screen meshes is on an expanding trend. It is expected that the global dewatering screen mesh market will grow at a certain compound annual growth rate from 2024 to 2030. In China, due to factors such as economic development and the promotion of environmental protection policies, the market size of dewatering screen meshes is also continuously expanding. The market size of vibrating dewatering screens in China reached several billion yuan in 2023, and it is expected to grow to nearly ten billion yuan by 2025.
Technological innovation trends:
Application of new materials: For example, stainless steel composite screen meshes are made of different metal wires or non-metallic materials through special processes. They have characteristics such as corrosion resistance, wear resistance, high-temperature resistance, and high compressive strength, and are widely used in various industries.
Breakthroughs in patented technologies: Shandong Xianzhuo Electromechanical Technology Co., Ltd. has obtained the patent for "a circulating full-permeable screen mesh filtering section". This can significantly increase the effective dewatering area ratio of the screen mesh filtering section to over 70%, which is 2 to 3 times that of traditional designs. It is suitable for situations such as insufficient slurry dewatering capacity.
Industry competition landscape:
International enterprises: International companies such as Vibramech, Binder+Co, and Superior Industries hold a certain share in the Chinese dewatering screen market.
Domestic enterprises: Domestic enterprises such as Luoyang Longzhong Heavy Machinery (LZZG) are also actively competing in the market. Large enterprises usually have strong R&D and production capabilities, while small enterprises are better at providing customized products.

Dewatering screens are mainly used in the following fields:
Mining field
Coal industry: In the coal washing process, dewatering screens are used to dehydrate coal. When coal is mined from a mine, it contains a large amount of moisture. Through the dehydration screen, the moisture on the surface and internal gaps of the coal can be effectively removed, reducing the moisture content of the coal and increasing the calorific value of the coal. For example, after thermal coal is treated with a dehydration screen, the moisture content can be reduced from a high level to about 10% - 15%, which is beneficial to the transportation, storage and combustion of coal and improves combustion efficiency.
Metal ore beneficiation industry: In the beneficiation process of metal ores (such as copper ore, iron ore, zinc ore, etc.), dehydration screens play a key role. After the ore is crushed and ground, useful minerals need to be separated from gangue minerals through screening, dehydration and other steps. The dehydration screen can dehydrate the slurry, separate the mineral particles from water, and obtain higher-grade concentrate. For example, after the flotation of copper ore, the use of dehydration screens can reduce the moisture of the copper concentrate to facilitate subsequent smelting and processing.
Sewage treatment field
Industrial wastewater treatment: A large amount of wastewater containing suspended solids and pollutants will be produced during industrial production processes such as chemical industry, printing and dyeing, and electroplating. Dewatering screens can be used as pretreatment equipment to intercept and separate larger suspended particles in sewage, such as fibers, waste residues, etc. For example, in printing and dyeing factory sewage, dewatering screens can remove undissolved dye particles and fabric fibers, reduce the load of subsequent treatment, and improve the efficiency of the entire sewage treatment system.
Urban sewage treatment: In the urban sewage treatment process, dehydration screens can perform primary separation of solid impurities in sewage. The sewage that has been initially filtered by the grille still contains some smaller solid particles. Further filtration through the dehydration screen can effectively reduce the burden on the subsequent biological treatment unit and advanced treatment unit, and at the same time recycle some solid waste for composting and other treatments. .
Food processing field
Fruit and vegetable processing industry: During the cleaning and processing of fruits and vegetables, a large amount of wastewater containing impurities such as pulp, peel, and pomace will be produced. Dehydration screens can separate these solid impurities from wastewater and achieve preliminary purification of wastewater. For example, in the juice production process, the pomace and juice mixture after juicing can be separated through a dehydration screen to make the juice purer, and the recovered pomace can be used to make feed or fertilizer.
Grain processing industry: During the processing of rice, wheat and other grains, dehydration screens are used to remove impurities in the grain, such as chaff, sand and gravel, etc., and can also properly dehydrate the grain. For example, in rice processing, after the rice is hulled and milled, a dehydration screen can be used to separate impurities such as broken rice and rice bran, reduce the moisture content of the rice, and improve the quality and storage stability of the rice.