The Soviet Union was one of the world's major phosphorus ore producer. Its production centers are the three mining areas of Kola Peninsula, Karachi and Aktyubinsk. Among the phosphate ore in the Hibin area, there is also an ore-bearing ore formed in the weathering process of the basic rock and containing a large amount of clay- like slime. This ore accounts for approximately 1.5 to 3% of the total ore reserves. Ore beneficiation plant selected, the average content of such ore about 10% of the amount of the mineral composition. When sorting, if the amount of ore is below 12~15%, the beneficiation process is smoother; if the amount of ore is increased or there is a composition of complex ore incorporation, the quality of the phosphate concentrate will be reduced. The second flotation plant of the Xibin Phosphate Mine near Apaziu mainly deals with “mixed ore†containing more clay. Grinding Constant Force Actuator Our Constant Force Actuator mainly is used to help Grinder to realize flexible grinding. So you can call it grinding constant force actuator, or grinding Force Control System, grinding active contact flange. Based on different functions, you can call it different name. Our system has flexible control, quick response and instant adjusting characters. Grinding Constant Force Actuator,grinding force control system,grinding active contact flange DARU Technology (Suzhou) Co., Ltd. , https://www.yiwufizz.com
The Xibin Phosphate Mine in the Kola Peninsula in the northwest of the Russian Republic is the largest phosphate mine in the Soviet Union. It is also a world-famous joint mining and selection company for magmatic rock apatite. There are 14 deposits with proven phosphate ore reserves in the region. In 1974, the total ore reserves are 3.146 billion tons, with an average of P 2 O 5 16-17% and Al 2 O 3 13.5%. The predicted reserves are 5.7 billion tons, accounting for 80-85% of the total resources of the Soviet phosphate mine.
There are currently four mines being produced in the area: KykИcByMЧOPP, Yukpol (ЮKCПOPP), ApaaTИT basin and Pratolas Umjol (ПaCTOpacByMHOPP) )plateau. In addition to the first and second flotation plants that produced about 20 million tons of phosphate concentrates, which were put into operation in the 1930s and 1965s, there are also the third annual output of 10 million tons of phosphate concentrates that are expected to be put into operation in 1987. Flotation plant. Phosphate concentrate production in the entire Xibin area accounted for more than 80% of the total Soviet production. The grade of phosphate concentrate is 39.4% P 2 O 5 , which is the highest in the world.
The Xibin Phosphate Mine is a single apatite-nepheme deposit. There are different types of ore structures, such as spotted, spotted strips, breccias, and flat strips. The apatite-containing ore body is divided into two main ore belts: the upper ore belt accounts for one-third of the ore layer, contains P 2 O 5 26~28%, and the lower ore belt accounts for two-thirds of the ore layer, including P 2 O 5 16 ~18%. Ore currently selected, an average of 40 to 44% apatite, nepheline 35 to 40% Ni 8 to 12% pyroxene, 3-5% feldspar, sphene 1.2 to 1.9% titanium ore magnet 1 1.8%, other components 1~2%, secondary minerals 2~3%. The apatite has better prismatic crystals, and the particles are 0.1 to 1.0 mm (called fine particles) and 2 to 12 mm (called coarse particles), which are smaller than the associated mineral particles and have good friability. The average chemical composition is shown in Table 1. 
The second phase of the Xibin Phosphate Flotation Plant was put into operation in 1965 and has been expanded several times in the future. The current scale is to treat 23 to 25 million tons of raw ore annually. In 1980, it produced 14.5 million tons of phosphate concentrate. The plant has been using backwater since 1979, and the current reuse of water has reached 100%. Of fresh water consumed in the production process and the only water loss compensation tailings pond, so that fresh water is lowered the amount of the original one thousand m 3 21.4 / from 3 to 5.6 km / h.
The plant's selected ore contains P 2 O 5 15~17%, and the proportion of oxidized ore accounts for about 20%, so its process index is lower than that of the first flotation plant. The ore is transported to the plant with a self-unloading dump truck with a carrying capacity of 105 tons along the electric railway, and is sorted according to the process flow shown in Figure 1. The process recovery rate is 91~92% (the product recovery rate is 89~90%). The main process equipment used in the concentrator is detailed in Table 2. The number and quality process of the flotation system is based on the 27# series of the plant, as shown in Figure 2.
Soviet Union Xibin Phosphate No. 2 Mine Flotation Plant (AHOÑ„-2) 1