Multifunction coal dust combustor

Abstract

The invention discloses a multifunction coal dust combustor of the technical field of road construction and maintenance machinery, comprising a traveling chassis, a combustion furnace, an air and coaldust regulating mechanism, a drive mechanism, a blower, an automatic ignition device and an electric control system, wherein the air and coal dust regulating mechanism consists of an electromotion air valve, a pipeline, a flap valve and a Venturi pipe; an air outlet is connected with the combustion furnace; the pipeline comprises an automatic ignition device channel, a dense coal dust channel, athin coal dust channel, a secondary air channel and a third air channel which are arranged in sequence from inside to outside; the outlet end of the dense coal dust channel is connected with the Venturi pipe; the outlet of the Venturi pipe is provided with a bluff body; and the flap valve is arranged on the inlet ends of the dense coal dust channel and the thin coal dust channel. The multifunctioncoal dust combustor has high degree of automation, sufficient combustion and high efficiency, thereby lowering demands on coal quality, and long service life and can realize the functions of automatic rotation of a combustion chamber, automatic travel of the whole combustor, automatic ignition, air oil automatic regulation and temperature automatic control.

Description

technical field [0001] The invention belongs to the technical field of road construction and maintenance machinery, and in particular relates to a multifunctional pulverized coal burner that provides heat sources for heat-using equipment in road construction machinery. Background technique [0002] At present, most of the coal-fired heat source equipment used in the road construction industry in my country, that is, the pulverized coal combustion device, is composed of coal-fired burners, pulverized coal machines, coal conveying pipes, fuel oil ignition systems and control systems. The coal-fired burner is fixed on the bottom frame and cannot be rotated, which causes the wall of the combustion chamber to be heated unevenly, which is easy to cause local damage during use, and is easy to form local slagging. Walking wheels are installed on the bottom frame, and the position of the burner is adjusted by multiple people pushing and pulling together, which is very inconvenient to...

AI Technical Summary

Problems solved by technology

Due to the large differences in coal quality in various parts of our country, manual ignition has a relatively low ignition success rate, and at the same time, it is highly dangerous, and it often needs to ignite the torch multiple times, which is extremely inconvenient to operate.

In the normal production process, the heat required by the heating equipment is often in a fluctuating state, and the required coal supply changes accordingly. Most of the existing equipment adopts manual adjustment of the coal supply, so human factors have a great impact on the normal operation of the heating equipment , there are situations of insufficient combustion and inconsistency between the amount of coal supplied and the required heat

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