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Pulverized Coal Burner Manufacturer / Cement Kiln Burner / Coal Dust Burner for Sale
Pulverized Coal Burner Introduction:
Pulverized coal burner can make pulverized coal fully burn at a short time and produce
high temperature vortex. It can be divided into three types
according to the usage:
1. pulverized coal burner for rotary kiln;
2. pulverized coal burner for boilers;
3. pulverized coal burner for asphalt mixing plant. It’s specially
designed with multistage multi nozzel air guide structure which
produces high temperature vortex in a short time. It has several
strong points, such as complete combustion, high heat utilization
ratio, dust and smoke removal, high efficiency, energy saving,
working condition improvement and lowering labor intensity. It’s an
ideal product for environmental protection. It’s applied to all
dryer boiler, rotary kiln boiler, annealing furnace, metal heating
furnace, quenching furnace, precision casting sintering furnace,
melting furnace, forging furnace and other heating boilers.
Coal Powder Mini Burners Working Principle:
Qualified coal powder (with fineness of 88-μm and screen residue of
less than 10%) enters into the convey pump and then into the burner
along the air of the draught fan. The air for coal feeding is
provided by Roots fan and is adjusted by the aperture of the valve
on the tube according to the air volume. The adjustment can be
stopped after the burning is stable. In the rotary kiln, the mixing
ratio of coal powder and the air mainly depends on the mixing of
coal powder and the secondary air. The stronger of outlet momentum
and cyclone intensity of the first air are, the more secondary air
can be absorbed. The intensity of the first air is related to the
proportion of inner and outer air. Thus, adjusting the proportion
of the inner and outer air volume is the key to achieve ideal
combustion of the mixing between coal powder and
combustion-supporting air. The clean air is the sum of inner, outer
and center air (four air channels) and flows into the inner, outer
and central air tube by exclusive draught fan adjusting air volume
and pressure. To meet the requirements of forging condition, the
proportion of the first air volume and inner and outer volume
should be adjusted in time while other distributions should be
adjusted by butterfly valve. The first air volume is controlled by
different aperture of three air channel valves. Pulverized coal
burner is installed on the walking trolley which is on the track.
It moves back and forth by the adjustment structure. The oil burner
is placed in the center tube for primary ignition. It mainly uses
high pressure oil and compressed air and the oil will be atomized
and be sprayed under the action of compressed air.
Cement Kiln Burner Performance Characteristics:
1.Coal powder stays a long time in the high temperature zone. Thus,
the discharging is direct without smoke and with high combustion
efficiency, in steam smoke;
2.The time of rising temperature is reduced with high heat
efficiency and less requirements for coal and wide applicable scope
for various coal as well as high economic benefit;
3.Easy for ignition, fast rising temperature and high efficiency;
4.Air volume and coal feed volume can be adjusted according to
requirements. The temperature of the furnace and the flame length
are also adjustable within a wider range to meet the actual needs;
5.Even temperature field inside the coal powder burner, large
heating area, no adhesion of slag onto the surface of components
and good quality.
Technical Data:
Type and Spec | Coal Consumption(t/h) | Fan | Installation | Kiln Type | Overall Size |
LY-1 | 1.2-1.8 | Centrifuga | Horizontal/Suspended | Ф1.9 | 300x9000 |
LY-1A | 1.3-2.3 | Centrifuga | Horizontal/Suspended | Ф2.2 | 300x9000 |
LY-2A | 1.8-2.8 | Centrifuga | Horizontal/Suspended | Ф2.5 | 300x9000 |
LY-2A | 2.2-3 | Centrifuga | Suspended | Ф2.8 | 300x9000 |
LY-3 | 2.5-3.3 | Centrifuga/Roots | Suspended | Ф3 | 350x10000 |
LY-3A | 3-3.8 | Centrifuga/Roots | Suspended | Ф3.2 | 350x12000 |
LY-4 | 4-4.8 | Centrifuga/Roots | Suspended | Ф3.5 | 406x12000 |
LY-4A | 5-6.5 | Centrifuga/Roots | Suspended | Ф4 | 400x12000 |
For different type of kiln, fuel characteristics and process conditions, the multifuel burner is custom designed and fabricated.