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The dry sand production line has many advantages, such as saving water resources, low water content of finished products, and small footprint. However, the disadvantages are also obvious and worthy of attention, such as: 1. Uneven coarseness and fineness: The preparation process of dry sand is prone to form some fine pores and cracks, resulting in uneven coarseness and fineness, unreasonable grading, and commercial mixing stations cannot be used directly. 2. Poor particle shape: The particle shape of dry sand is irregular, with more protrusions and sharp angles on the surface. 3. There is a certain amount of stone powder residue on the surface of the product aggregate, the cleanliness is not high, and the appearance is poor. In view of the above shortcomings, Longzhong Heavy Industry has tailored a complete production line for it. The production line consists of a set of equipment such as silos, conveying equipment, sand washing and fine sand recovery equipment, trihydrogen purificati

 Environmentally protection sand washing plant design principles 1. Seriously implement regulations, norms, and standards on environmental protection. 2. According to the sewage water quality and treatment requirements, choose a reasonable treatment process route, require the treatment technology to be suitable and reliable, and handle the effluent water quality to meet environmental protection requirements. The operation is stable and the investment is reduced while meeting the processing requirements. 3, equipment selection should consider performance and price factors, require high efficiency and energy saving, low noise, reliable operation, easy maintenance and management, and make full use of the original facilities and equipment. The equipment includes sand making machine, sand washing and recycling machine, waste water purifying system.