Special hot air stove for coal slurry

Abstract

The invention discloses a special hot air stove for coal slurry, comprising an underframe, a air blower, a stove body and a back cover, wherein the underframe is arranged on a supporting track through travelling wheels; the air blower, the stove body and the back cover are installed on the underframe; the stove body is a circular hollow barrel composed of an outer shell and inner lining refractory bricks, an interlayer-type cooling ring cavity with an open-type structure at the front end is arranged between the outer shell and the inner lining refractory bricks, and the front end of the stovebody is a tapered outlet; the stove body is horizontally installed on the underframe through two groups of front and back supporting rollers driven by a power mechanism; the back cover is combined with the back end of the stove body in a movable fit way and is provided with a combustion-supporting air flue, a cooling air flue, a spiral air inlet flue, an igniting passage and a coal feeding port; and the air outlet of the air blower is respectively communicated with the combustion-supporting air flue and the cooling air flue arranged on the back cover through connecting pipelines, the combustion-supporting air flue is communicated with a combustion cavity of the stove body through the spiral air inlet flue arranged in the back cover, and the cooling air flue is communicated with the interlayer-type cooling ring cavity of the stove body.

Description

technical field [0001] The invention relates to equipment for drying coal slime, in particular to a special hot air stove for coal slime. Background technique [0002] Coal slime and other minerals are dried with rotary drums, and high-efficiency heat sources that use coal as fuel are often used. However, due to the characteristics of coal itself, it is difficult for general coal-fired hot blast stoves to do this during startup and shutdown. It burns and extinguishes immediately. In case of a sudden accident on the drum, it is difficult to cut off the heat source in time, which will lead to a bigger accident. Therefore, it is necessary to design a new type of heat source equipment to meet the needs of production. Contents of the invention [0003] The object of the present invention is to provide a more reasonable hot air stove dedicated to coal slime with high efficiency, convenient operation, and easy-to-control structure for the shortcomings in the above-mentioned prio...

AI Technical Summary

Problems solved by technology

[0002] Coal slime and other minerals are dried with rotary drums, and high-efficiency heat sources that use coal as fuel are often used. However, due to the characteristics of coal itself, it is difficult for general coal-fired hot blast stoves to do this during startup and shutdown. It burns and extinguishes immediately. In case of a sudden accident on the drum, it is difficult to cut off the heat source in time, which will lead to a bigger accident.

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