The plasma pulverized coal burner and its control system are "oil-free" ignition equipment designed for coal-fired boilers in power plants. The system can be used for cold furnace ignition and low-load stable combustion of coal-fired boilers. The core technology is to use "plasma flame" to ignite the pulverized coal in the primary guide tube of the special pulverized coal burner, and then ignite all the pulverized coal in the special pulverized coal burner step by step, and the step-by-step enlarged flame is injected into the furnace. Through the plasma ignition system, the power plant "replacing oil with coal" can achieve the purpose of boiler ignition start-up, low-load stable combustion and the construction of fuel-free power station, which significantly reduces the initial investment and operation cost.

EOBS series micro-oil ignition system of pulverized coal boiler is composed of micro-oil pulverized coal burner, micro-oil gun assembly, high-energy ignition device, fuel system, combustion-supporting air system, cold furnace pulverizing system, control system and auxiliary system (including fire detection and cooling air system, wall temperature monitoring system, primary air measurement system, etc.).

In the conventional combustion mode, air is used to provide oxygen for pulverized coal combustion. 

Because 79% of the nitrogen in the air not only does not participate in combustion, but also absorbs a large amount of heat to reduce the temperature of the combustion zone, but also hinders the diffusion of oxygen to the surface of pulverized coal and combustion products to the outside world, resulting in a high ignition temperature of pulverized coal. The combustion rate is obviously restricted by the diffusion process.

Bubble atomization technology uses bubble blasting as the power of atomization. Its atomization mechanism is to inject low-pressure atomization medium (steam or compressed air) into low-pressure oil by using the two-phase flow theory of hydrodynamics, and then mix it in a certain mixing chamber to form a specific flow pattern of oil-in-oil gas-bubble flow, making use of the generation, movement and deformation of bubbles until the internal and external pressure difference between bubbles is formed at the exit of the gun head. 

The surface tension of fuel is destroyed by its pressure difference to achieve the purpose of fuel atomization.

EOBS series micro-oil ignition system of pulverized coal boiler is composed of micro-oil pulverized coal burner, micro-oil gun assembly, high-energy ignition device, fuel system, combustion-supporting air system, cold furnace pulverizing system, control system and auxiliary system (including fire detection and cooling air system, wall temperature monitoring system, primary air measurement system, etc.).

EOBS series micro-oil ignition system of pulverized coal boiler is composed of micro-oil pulverized coal burner, micro-oil gun assembly, high-energy ignition device, fuel system, combustion-supporting air system, cold furnace pulverizing system, control system and auxiliary system (including fire detection and cooling air system, wall temperature monitoring system, primary air measurement system, etc.). 

EOBS series micro-oil ignition system of pulverized coal boiler is composed of micro-oil pulverized coal burner, micro-oil gun assembly, high-energy ignition device, fuel system, combustion-supporting air system, cold furnace pulverizing system, control system and auxiliary system (including fire detection and cooling air system, wall temperature monitoring system, primary air measurement system, etc.).