Electromagnetic heating reaction kettle rotary kiln

Abstract

The invention discloses an electromagnetic heating reaction kettle rotary kiln. The electromagnetic heating reaction kettle rotary kiln comprises a charging barrel. Vertexes are induced by means of an electromagnetic heating coil in a charging barrel shell through electromagnetic induction, so that the charging barrel is heated. The reaction kettle rotary kiln further comprises a cooling device. A connecting pipe of the cooling device is communicated with the electromagnetic heating coil, so that the electromagnetic heating coil is cooled from the interior. The reaction kettle rotary kiln further comprises a charging barrel stabilizing device which can prevent the charging barrel from shaking leftwards, rightwards, forwards and backward, and a cooling device used for cooling the charging barrel stabilizing device and the electromagnetic heating coil, an exhaust device used for exhausting waste gas generated during ore heating, a support device used for installing a kiln body, a voltage transformation system used for supplying power to the electromagnetic heating coil, and a center control device which is connected with all the other devices and used for controlling operation of all the other devices. The electromagnetic heating reaction kettle rotary kiln has the advantages that through induction heating, the energy utilization efficiency is high; by adjusting the speed of the charging barrel and the speed of a conveying pipe, the generated waste gas can be treated effectively, and safety construction is guaranteed, the stability is high, and maintenance is convenient.

Description

technical field [0001] The 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 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 dressing most of the choice is magnetite , is the ph...

AI Technical Summary

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. , when the heating tube of the rotary kiln is rotating, due to the centrifugal movement of the ore powder in the tube, the heating tube will easily shake and cause danger.

Moreover, the existing rotary kiln is prone to structural aging and inconvenient maintenance after long-term use, and the volume of the rotary kiln is huge, which is very inconvenient to transport

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