Combustion nozzle combination device of multi-channel coal water slurry gasification furnace

Abstract

The invention belongs to the coal chemical industry field of coal water slurry gasification, and specifically discloses a combustion nozzle combination device of a multi-channel coal water slurry gasification furnace. The combustion nozzle combination device comprises a high-voltage electric igniter connected with an electric ignition rod, wherein the high-voltage electric igniter is connected to an ignition nozzle through an ignition gas channel and an ignition gas pipe; a central oxygen channel is connected to a central oxygen pipe and nozzle, and is wrapped outside the ignition gas channel, the ignition gas pipe and the ignition nozzle; a coal water slurry channel is connected to a coal water slurry pipe and nozzle, and is wrapped outside the central oxygen pipe and nozzle; an outer annular oxygen channel is connected to an outer annular oxygen pipe and a combustion nozzle, and is wrapped outside the coal water slurry pipe; and a preheated gas channel is connected to a preheated gas pipe and nozzle, and is wrapped outside the outer annular oxygen pipe. By adding the ignition gas channel, the preheated gas channel, the electric ignition rod and a high-voltage power supply for the electric ignition rod based on the existing device, the invention simplifies the technical process, realizes the continuous operation of the combustion nozzle in accordance with a process of igniting, preheating and combusting coal water slurry, saves the production cost, and improves the operation safety and reliability.

Description

technical field [0001] The invention belongs to the coal chemical industry field of coal-water slurry gasification, and in particular relates to a gasification furnace burner combination device. Background technique [0002] The existing coal-water slurry pressurized gasifier burner structure has three channels, that is, the outer epoxy nozzle, the coal-water slurry nozzle and the central oxygen nozzle and the coal-water slurry pressurized gasifier preheating burner. [0003] At present, the process burner and the preheating burner used in the domestic coal-water slurry pressurized gasifier are two independent structures. Replace with the process burner. The process burner uses the residual heat of the lining brick of the gasifier to ignite the coal-water slurry process burner, and adjust the working parameters of the process burner to make the coal-water slurry gasifier work normally. [0004] Before the gasification furnace is started, install the preheating burner on the...

AI Technical Summary

Problems solved by technology

The pipelines on the top of the gasifier are criss-crossed, the space is narrow, the preheating burner is bulky, the weight of the process burner is more than 600 kg, and the construction and working conditions are harsh and labor-intensive under the high temperature condition of the top of the gasifier after preheating. It is easy to cause personal injury to the operator

In the process of dismantling the preheating burner and installing the process burner, there will be a major safety hazard if there is gas and oxygen leakage.

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