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Reduce the rate of limestone powder mineralization.

Limestone products are metallurgy, sugar, chemicals, cement and other industries one of the main accessorial material, according to the general standards can be divided into two major categories of lump ore and fines ore, In addition to cement manufacturing industry, other industries demand are based on lump ore products. Limestone production limited by the crushing crafts, geology and other conditions, the production rate of powder ore up to 40% to 60%, While small demand for the fines ore market, due to unbalanced production and sales, The backlog of a large number of fines ore is one of the main problems of limestone production, Lots of limestone production enterprises are seeking to reduce the rate of powder mineral and method of increasing the block mineral yield.

Through the analysis, it is found that the main reason for the high rate of powder mineralization in the crushing and screening system is that the crushing process and equipment selection is unreasonable, the screening efficiency of the vibrating screen is low and the massive lump ore flows into the powder ore; In the crushing and screening process, the internal transport impact, resulting in secondary crushing, but also to increase the powder ore. Therefore, from the above two aspects of analysis, to take measures.

In the crusher selection, we believe that because of the need to reduce the fines ore and reduce maintenance costs, should be used cone crusher, to minimize the use of hammer crusher. Although the cone crusher initial investment cost, but considering the human cost, mechanical fuel consumption, maintenance costs, safety performance and supply demand, cone crusher is still the best choice for limestone crushing equipment, hammer crusher high loss rate, Maintenance costs are gradually replaced by cone crusher.

Crushing process

Fed by ZSW series vibrating feeder, the material feldspar, is primarily crushed by KPE series hydraulic jaw crusher and then shaped by KPF series hydraulic impact crusher after meeting the required size, and finally crushed by KL series VSI crusher. The end product is screened and selected by YK series vibrating screen, and its particle size is determined by the model of crusher and vibrating screen.

• Time - 2015.10
• Input - 0-300 mm
• Output - 0-3mm, 3-8mm, 8-19mm, 19-25mm
• Capacity - 300t/h
• Location - China
• Product - ZSW-600x130 vibrating feeder, KPE-1200x900 hydraulic jaw crusher, KPF-1420 hydraulic impact crusher, KL-10 VSI crusher, 3YK-2160 vibrating screen.

Please feel free to contact us for more information.