Dual-hearth kiln spray gun

Abstract

The invention discloses a dual-hearth kiln spray gun, in particular to a spray gun with the self-protection function. The spray gun with the self-protection function comprises a dual-hearth kiln, a spray gun forward and backward movement device, a spray gun fixing base, a spray gun body, a spray head, an end portion protecting plate, an articulated mechanism, a spray gun protecting cover and the like. The spray gun with the self-protection function is characterized in that the spray gun body is installed on the side wall of the dual-hearth kiln through the spray gun fixing base, the spray gunprotecting cover is installed inside the side wall of the dual-hearth kiln, the end portion protecting plate is installed on the spray gun protecting cover through the articulated mechanism, the spraygun forward and backward movement device installed on the outer side wall of the dual-hearth kiln can used for adjusting the length, extending into the dual-hearth kiln, of the spray gun at will. Compared with a spray gun in the prior art, the spray gun with the self-protection function can achieve the self-protection function of the spray gun, the position of the spray head after extending in can be adjusted at will, damage caused by continuous abrasion of the spray head is avoided, blocking caused in the stopping process of the spray head is avoided, and so on; and the failure rate is decreased, the controllability of the spray gun is improved, and the service life of the spray gun is prolonged.

Description

technical field [0001] The invention relates to a double-chamber kiln spray gun, in particular to a spray gun with self-protection function, which has the characteristics of being easy to implement, reducing the failure rate, and improving the controllability and service life of the spray gun, and is especially suitable for double-chamber kiln , Shaft kiln, etc. Background technique [0002] An important feature of a double-chamber kiln is the periodic switching of working states between the two kiln bodies. Most of the fuel spray guns used in existing lime kilns are short burners arranged on the periphery of the kiln body, that is, there is only a section of horizontal fire with a length of no more than 1m. Composed of steel pipes, the tail of the steel pipes is connected by flanges, valves and fuel supply hoses, so that fuel can flow into the kiln body through the steel pipes. [0003] Because the spray gun is fixed on the kiln body, the nozzle is continuously exposed in ...

AI Technical Summary

Problems solved by technology

[0003] Because the spray gun is fixed on the kiln body, the nozzle is continuously exposed in the kiln body, so the nozzle cannot be adjusted, and the preheating zone in the kiln cannot be adjusted. When the kiln body is switched to the preheating state, the nozzle is continuously subjected to air flow, causing serious wear on the nozzle , the service life is short, and even lead to nozzle clogging and other problems. At the same time, the connection structure between the spray gun and the lime kiln body has complex structure, difficult disassembly and assembly, and many leakage points.

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