Cement rotary kiln barrel radiation, reclaiming and utilizing device

Abstract

The invention discloses a device for recycling heat radiated from a rotary cement kiln shell body, comprising a plurality of heat transfer covers arranged on the upper section of the rotary cement kiln shell body. Each of the external surfaces of the heat transfer covers is provided with an insulating layer, sealing equipment is arranged between the two ends of the heat transfer covers and the rotary cement kiln shell body, a sealing heat transfer cavity is formed by the inner surfaces of the heat transfer covers and the external surface of the rotary kiln shell body via the sealing equipment, the bottom of the heat transfer covers is provided with an inlet which is communicated with the heat transfer cavity, the top of the heat transfer covers is provided with an outlet which is communicated with the heat transfer cavity, the bottom of the heat transfer covers is connected to a slip fitting so as to realize the axial displacement. The sealing equipment comprises a permanent seat on the external surface of the rotary cement kiln shell body, and one side of the permanent seat is provided with a dynamic sealing ring; the bottom of the dynamic seal ring is hermetically connected to the rotary cement kiln shell body by a temperature resistant rubber I, and a self-propelling stationary seal ring is arranged between the dynamic seal ring and the head face of the heat transfer cover; the top of the self-propelling stationary seal ring is hermetically connected to the head face of the heat transfer cover by a temperature resistant rubber II, the self-propelling stationary seal ring is connected to an elastic stationary seal ring, and a sealing gland is arranged between the elastic stationary seal ring and the dynamic seal ring.

Description

technical field

[0001] The invention relates to a recovery and utilization device for heat radiation from a rotary kiln cylinder body for cement calcining. Background technique

[0002] Such as figure 1 , figure 2 As shown, the internal temperature of the existing rotary kiln shell for cement calcination is high. Although various heat insulation measures are adopted, currently refractory bricks 13 and kiln skin 14, the surface temperature of the rotary kiln shell is still high, and the rotary kiln shell Under the high temperature of the surface of the rotary kiln shell, the steel plate not only has to bear the dynamic and static loads caused by the weight of the rotary kiln shell 1 itself, the weight of the refractory brick 13 and the material 15, but also transmits the rotational torque, and the working conditions are relatively harsh. Since the shell of the rotary kiln is mostly made of Q235 steel plate, the surface temperature of the shell of the rotary kiln must be co...

Images