Cyclone dust collector: preferred for high-temperature wear-resistant mines, efficient dust control and more durable
Sep 11,2025
The biggest dust removal challenge faced by overseas mines in the crushing, screening, and transportation processes is the strong erosion of high-temperature flue gas and coarse dust - ordinary dust removal equipment either softens the filter material due to high temperatures or is worn through the shell by coarse dust, requiring major repairs in 3-6 months. The cyclone dust collector, with its "filter free high-temperature adaptation+strong wear-resistant structure," has become the preferred solution for mining dust removal. It can withstand harsh working conditions while controlling costs, meeting the actual needs of overseas mines.
1、 High temperature adaptation: filter free design, capable of withstanding high temperature flue gas from mines
The flue gas temperature in the crushing and drying section of the mine often reaches 150-200 ℃, with some peaks exceeding 220 ℃. The "no filter material physical separation" design of the cyclone dust collector solves the problem of high temperature hazards from the root:
1. High temperature resistant structure, no need to worry about "baking damage"
The shell is made of 16Mn thickened steel plate, which has a 30% stronger high-temperature deformation resistance than ordinary carbon steel; The inner wall can be lined with 3mm thick refractory castable, which will not overheat even when in direct contact with high-temperature flue gas; The top air outlet is equipped with a thermal insulation layer to prevent damage to the motor caused by high temperature conduction - the entire design does not rely on filter bags or cartridges, completely eliminating the problem of "high-temperature softening and damage of filter materials". The equipment can operate stably for a long time at 220 ℃.
2. High efficiency separation of high-temperature dust does not meet the standard
The proportion of coarse dust in mines exceeds 90%. The cyclone dust collector optimizes the ratio of cylinder diameter to height (1:3.5), allowing the airflow to rotate at a speed of 15-20m/s. The centrifugal force can throw more than 95% of the coarse dust towards the cylinder wall. After purification, the flue gas emission concentration is ≤ 30mg/m ³, easily meeting the environmental standards of mainstream mining markets in Africa, the Middle East, and other regions.
2、 Strong wear-resistant design: resistant to dust erosion, with a lifespan of over 5 years
The hardness of coarse dust in mines is high, and it has strong erosion on the inner wall of equipment. The wear-resistant structure of cyclone dust collectors can greatly extend their service life:
1. The inner wall is wear-resistant and protected, not afraid of being worn through
The key parts of the cylinder are lined with 92% alumina ceramic sheets, or sprayed with a 6mm thick tungsten carbide wear-resistant coating, with a surface hardness of HRC60 or above, which is 8 times higher than the wear resistance of ordinary steel plates.
2. Anti clogging design of ash hopper to reduce potential wear and tear hazards
Mining dust has low moisture content and poor fluidity, which makes it easy to accumulate and block in the ash hopper. The cyclone dust collector uses a large volume ash hopper with a 60 ° inclination angle, paired with a high-frequency vibrator, to avoid dust retention; Wear resistant cast iron valves are used at the outlet of the ash hopper to prevent air leakage caused by dust erosion and reduce additional wear caused by blockage and air leakage.
3、 Exclusive advantages of mining: adaptability to working conditions, cost reduction and worry free
In addition to high-temperature wear resistance, cyclone dust collectors also meet the actual operational needs of mines:
1. High air volume adaptation, covering multiple links
Single machine processing air volume can reach 100000-80000 m ³/h, covering both crushing and screening sections simultaneously without the need for multiple equipment splicing. The initial investment is 40% lower than that of bag filters; And there is no cost of replacing filter materials, with annual operation and maintenance expenses only 1/5 of the filter bag equipment, which is particularly friendly to small and medium-sized mines that focus on cost control.
2. Dust recycling, turning waste into treasure
The collected coarse ore powder can be directly recycled for further processing or used for roadbed filling. A certain African gold mine has generated an additional annual income of over 20000 US dollars by recycling ore powder, which is in line with the concept of "circular economy" and reduces the cost of solid waste disposal.
For overseas mines, cyclone dust collectors are not "temporary transitional equipment", but "the optimal solution for high-temperature wear-resistant scenarios" - they can withstand high-temperature erosion, save operation and maintenance costs, and meet global compliance requirements, truly becoming a "durable partner" for efficient dust control in mines.
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