There is a lack of potash mines in China, which has the characteristics of low grade, many associated components, large amount of foam in the flotation, and small required aeration. Yuan Linyang and other examples of the production of potassium salt mines, the application of BGRIMM flotation equipment in the national investment Lop Nur Potash Company, Laodong Dongtai Potash Mine, Sichuan Kaiyuan (Laos) Potash Mine, Qinghai Tibetan Potash Fertilizer Company, etc. BGRIMM flotation equipment has extensive practicability for potash mines, high flotation efficiency and good effect, and has certain guiding significance for the selection of flotation equipment for potash mines in the future.
An industrial test study of the KYF inflatable flotation machine was carried out for a certain potassium salt mine Yu Yue. Two sets of KYF-50 inflatable flotation machine were used to replace 8 SF-8 small flotation machines in the original process. At the same time, the aeration amount, the suction capacity, the running power consumption, the slurry suspension capacity and the liquid level automatic were measured. Control and testing, and finally obtained the technical grade of 26.69% concentrate grade and recovery rate of 93.27%, which met the requirements of industrial test. The test results show that the gas-filled flotation machine can meet the process requirements of the potassium salt flotation, and provides a basis for the large-scale equipment of the potash mine. The large-scale equipment can reduce the number of flotation machines, and has the advantages of high efficiency and energy saving, and reasonable configuration of liquid level system.
Flotation column as a new type of mineral processing technology and equipment applied to the mineral industrial flotation process has become more mature. The use of flotation column reverse flotation to obtain potassium chloride has the advantages of short process, high sorting rate and low energy consumption. . Liu Wenzhao and others used the flotation column reverse flotation to prepare potassium chloride in the potash mine in Laos. The total yield of potassium chloride reached 84.12%, and the product reached the national second class superior product standard.
Wang Guodong and others used advanced high-efficiency column technology to produce potassium chloride in the positive flotation of the potash mine in Laos. The process conditions of potassium salt mine decomposition and column flotation were studied. Under the test conditions of controlling the ore-mining amount of 3 t/h, the dosage of the agent 80 g/t, and the column flotation cycle pressure of 0.15 MPa, the test was carried out for 72 h. The yield of crude potassium in potash mine is 74.98%, and the quality of potassium chloride product meets the requirements of Class II superior products in GB6549-2011.
The key to the reverse flotation cold crystal potassium chloride production lies in the controlled rate decomposition and controlled rate crystallization in the DTB crystallizer, and the key to the speed control is the speed regulation of the agitator. Tian Zhen et al., through the analysis of the mixing principle, type and mechanism, ensured that the appropriate agitation type was selected without affecting the decomposition and crystallization rate. The production practice proved that the propulsion axial flow type agitation is compared with the folding type radial flow type agitation. There is great advantage in increasing the particle size of potassium chloride products.
In order to effectively separate the calcium sulphate particles in the crude carnallite ore, Liu Sengsheng et al. conducted a laboratory separation test on the samples provided by Qinghai Salt Lake Potash Company by using the hydrocyclone method on the basis of the laboratory screening and classification method. Industrial experimental research. The laboratory test results show that the CaSO4 in the crude carnallite ore is separated by hydrocyclone cyclone. The cyclone has good separation performance within a certain range of feed mass fraction, and the secondary cyclone separation is used. The CaSO4 mass fraction of the outlet material under the secondary cyclone separation can be reduced to 0.3%. The particle size distribution indicates that the primary vortex separation large particles are not entrained in the upper outlet material and the small particles in the lower outlet material, and the separation precision can be improved by the secondary separation.
Peng Cao et al. used a hydrocyclone to conduct a cyclone separation test on the potassium salt ore decomposition slurry. The results show that by controlling the mass fraction of the decomposition slurry and adjusting the operating pressure of the hydrocyclone, the chlorination can be directly obtained without flotation. A crude potassium product with a potassium mass fraction greater than 80%.
Solid-liquid separation is a key operational step in the production process of potash. The separation efficiency of solid-liquid separation equipment directly determines the production efficiency of potash. Zhou Zhiqiang discussed the characteristics of the solid-liquid separation equipment for potash ore processing, and found the process parameters of the solid-liquid separation process suitable for potash production, thereby optimizing the current potash process, reducing the investment in separation equipment and improving the separation effect. In the end, it has achieved the goal of reducing production costs, reducing the labor intensity of operators, and improving economic efficiency.
Su Jun introduced the flotation machine slurry level control system and its industrial test process. The system consists of a liquid level gauge, a controller, and a pneumatic actuator. In the industrial test of potassium salt flotation, the stable operation of the flotation machine and the completion of the selection index are effectively guaranteed.
Su Yong introduced the solution of using the Rockwell PLC and touch screen to realize the liquid level control system. The RSTune adjustment software was used to adjust the PID command control parameters to realize the automatic control of the potassium salt flotation liquid level system, which was achieved in the field industrial production. The expected effect.
Neoprene Coating For Offshore Risers
Neoprene Coating For Offshore Risers,Liquid Neoprene Coating,Neoprene O'Ring,Spray On Neoprene Coating
Hebei no one but god energy equipment co.,ltd , https://www.p-harcourtbrothers.com