Multifuel burner is a new combustion device burning gas and coal powder in rotary kiln. It has a unique structure and reasonable parameters to ensure gas, coal powder and air, primary air and secondary air mixed sufficiently. It brings greater thermal intensity, higher combustion efficiency and easier adjustment. It can be widely applied to various rotary kilns in metallurgical and chemical industry.
The burner can mix gas and coal powder for co-burning, and also can realize gas or coal powder separate burning.
Application:
The rotary kiln’s combustion system in electricity, chemical, metallurgy, building materials industries.
Our products advantages :
1. Flame stable, no fluctuation, no flame sweeping kiln lining and prolong kiln lining life;
2. Reasonable structure design, well mixed gas and coal powder, primary air and secondary air, complete combustion, can improve the kiln thermal strength while reducing the proportion of primary air to improve the productivity of the kiln and reduce heat consumption;
3.The flame round up cover forms bowl effect and initial flame without strong eddy. It avoids temperature peaks and distributes the flame temperature rationally. This can effectively protect the kiln body and guard plate.
4.Due to fully mixing between air and coal powder, the combustion is more efficiency. It can reduce the content of CO and NOX in exhaust gas and be beneficial to safety and environmental friendly operation.
5.The nozzle is made of special materials which can resistance high temperature and easy to replace;
Multifuel burner is mainly composed of piping, nozzle, Metal Ripple Hose compensator, butterfly valves, pressure measurement instruments and protective layer. Its main structural features are:
1. Pipeline
There are five layers from outside to inside. They are axial flow duct, cyclone duct, gas channel, coal air channel and the central channel.
2. Nozzle
Processed by special material, its outlet are can be modified to adjust the ejection speed.
It is one of the key components which can maintain the flame shape and service life time.
3. Metal Ripple Hose Compensator
The Metal Ripple Hose Compensator is the main components of pipe connecting, sealing and flame shape adjusting.
4. Butterfly Valves
There are butterfly valves at the inlets of axial flow air, cyclone air and central air. Each air volume and proportion can be adjusted by change the channel outlet area to modify the ejection speed.
5. Pressure Measurement Instruments
They are used for indirect display air speed of each channel in burners.
6.Protective Layer
It is the refractory casting layer which is cast by user;
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Pulverized coal burner is the key equipment of calcination system in metallurgical, chemical, cement, quicklime rotary kiln, its performance and operation relate to product quality, capacity, energy consumption, environment and so on. Our company design pulverized coal burner is according to different kiln type, different feature of pulverized coal and different technical conditions, with typical structure and reasonable technical parameters, ensuring the pulverized coal, primary air, secondary air mix fully, make high burning efficiency, larger heat intensity, better fire shape and easy control, its widely used in various dry and wet cement rotary kiln, steel sintering pellet rotary kiln, lime rotary kiln, chemical rotary kiln, alumina clinker rotary kiln, power plant boiler and so on. Application: Burning system of rotary kiln in power, chemical, metallurgy, construction industry and so on. Our products advantages : 1.Reasonable structure design, fire adjustment easily, not only adjustment air volume of axial air, swirling air, but also adjustment outlet section area of axial air , swirling air and coal air, to reach the goal of change outlet air speed of burner, to ensure fuel burning normally; 2.Less use of primary air, and coal air mix with primary air, secondary air fully, make burning complete, to reduce coal consumption effective; 3. Nozzle is made of special material, heat resistance and replacing easily; 4.Fire cover forming bowleffect, there is not high swirl with fire at beginning, to avoid the peak value of temperature, make the fire temperature distribute uniform and reasonable; 5.Because the combustion air mix pulverized coal fully, the burning is fast and safety, co and nox content from kiln tail exit gas are reduced, in favor of equipment operation safety and realize environmentally friendly production;
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