An electromagnetic heating reaction kettle rotary kiln with temperature control and exhaust function

Abstract

The invention discloses an electromagnetic heating reaction kettle rotary kiln with the function of temperature control and exhaust, which includes a material cylinder, and an electromagnetic heating coil induces eddy currents in the material cylinder shell through electromagnetic induction, and then heats the material cylinder, and the reaction kettle rotary kiln It also includes a cooling device, the connecting pipe of the cooling device communicates with the electromagnetic heating coil, and cools the electromagnetic heating coil from the inside. The reactor rotary kiln also includes an exhaust device. Connected, the reaction kettle rotary kiln also includes a central control device, the central control device is connected with the conveying motor, solenoid valve, barrel motor and the temperature monitor on the heating part, and the central control device regulates the temperature of the conveying motor and barrel motor The speed and the opening and closing of the solenoid valve. The invention has the advantages of induction heating, high energy utilization efficiency, speed adjustment of material cylinder and material conveying pipe, effective treatment of generated waste gas, and safe construction.

Description

technical field [0001] The present invention relates to the technical field of ore beneficiation equipment, in particular to refractory gold ore and iron ore beneficiation equipment, which is used to open gold parcels and improve the recovery rate, and specifically relates to an electromagnetic heating reaction kettle with temperature control and exhaust function Rotary kiln. Background technique [0002] Rotary kiln is mainly used in mines, which can carry out preliminary processing of ore powder and improve the precision of minerals, especially gold or iron ore. Taking iron ore as an example, iron ore There are many types, the main two are magnetite (Fe3O4) and Hematite (Fe2O3), the latter is also commonly known as red ore. our country iron ore Generally, it is lean ore, the grade is around 30, and generally needs to be processed Mineral dressing . low grade Hematite beneficiation process Complicated and not easy to implement. Therefore, our country's Mineral...

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Problems solved by technology

To heat the impurity iron element, it is necessary to design a conveniently controlled heating method to provide the basis for intelligent temperature control. The best solution is to use electromagnetic heating, but the rotating speed of the rotary kiln and the feeding pipe will affect the heating of the mineral material. Time, travel speed, etc. all have a great influence, and the best heating time for different quality mineral materials is different. If a uniform rotation speed is used, some mineral materials will not be well oxidized, and some mineral materials will not be oxidized well. Excessive waste of energy, and the existing rotary kiln puts the ore material into the rotary kiln and heats it at high temperature. Since the ore will contain elements such as sulfur, nitrate, and arsenic, it will generate harmful gases during heating, which must be treated.

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