Application of horizontal reaction kettle in soil and mining industry
Introduction: Horizontal reactors are widely used in petroleum, chemical, pharmaceutical, pesticide, mining metallurgy, building materials and other industries. They are ideal equipment for corrosion resistance, high temperature, high pressure reaction, pressure leaching, slurry heating, and extraction processes. 1. Characteristics of horizontal reactor Horizontal multi-chamber magnetic reactor is a chemical reaction equipment for intermittent operation of multi-chamber reaction. The parts in contact with the reaction medium can be made of various types of stainless steel and nonferrous metals such as titanium, nickel, zirconium, etc. Medium, with good corrosion resistance. The static sealing structure is adopted, and the magnetic stirring system is used to connect the stirrer and the motor, which has good sealing effect and stirring effect. The equipment capital investment is large, and the volume is large. Equipped with a controller to adjust the working time of the heater according to the set temperature to achieve the purpose of automatic constant temperature. At the same time, according to the needs of the stirring load, the frequency converter controlling the stirring motor is adjusted to achieve the purpose of speed stirring. The main technical parameters: The volume is: 2000-20000L Maximum working pressure: -0.1 ～ 20Mpa Maximum working temperature: -18 ～ 300 ℃ Stirring speed: 0-250rpm, variable frequency speed regulation, propulsive stirring is the best stirring method Refueling method is oil bath, water bath, steam, molten salt, outer half coil. 2. Application of horizontal reaction kettle in mineral processing industry The pressure acid leaching method is used to treat the low magnesia nickel-bearing laterite ore, and the high temperature and high pressure direct acid leaching laterite ore is used to extract nickel and cobalt. The process is more advanced, the plant layout is more compact, the area is small, and the environment in the plant is clean. The nickel-bearing laterite ore treated is of the limonite type. If it is leached with sulfuric acid solution at normal pressure and normal temperature, it is present in a large amount Of iron (the mine contains 68% iron oxide) easily enters nickel and cobalt-containing solutions. However, using the same concentration of sulfuric acid solution, leaching under high temperature and high pressure (246 ℃, 3.6MPa), only a small amount of iron enters the solution and the leaching rate of nickel and cobalt exceeds 95%. The content of alkaline oxidation in the ore is quite low, and it is not necessary to consume a large amount of sulfuric acid to neutralize the alkaline oxide with high content in the ore. The amount of sulfuric acid for pressure leaching is 22.5% per ton of dry concentrate. The leaching slag contains 51% iron and can be used as raw material for iron making. The leaching solution is sent to a precipitation autoclave (118-121 ° C, pressure 1 MPa) to precipitate nickel, cobalt, copper and other sulfides through hydrogen sulfide precipitation. The output contains 55% Ni, 5.9% Co, and 1.0% Cu sulfide concentrate, which is sent to the refinery for further refining. Paper Eyelash Box,Holographic Lash Boxes,Square Lash Boxes,Paper Lash Boxes Zhengzhou Cuka Electronic Commerce Co., Ltd. , https://www.cukalashes.com