Combustion Fan

Short Description:

Fan device is to ensure the supply of oxygen and plays a role of combustion.It has a decisive role to improve the output, yield, coal full combustion.

Product Detail

Product Tags

11. Air supply system

 Nowadays, most lime kilns only supply air at the bottom, which is not evenly distributed, and is prone to the phenomena of partial burning, core extraction, coking and edge refining. The high pressure wind produced by our special combustion fan rises to the calcining zone through the cooling zone at the bottom of the kiln. The cooling zone is actually a heat exchange zone. The temperature of lime drops sharply when the natural temperature rises with high temperature lime. After heat and cold exchange, the heat is brought back to the calcination zone, and the lime is cooled below 80℃ to meet the requirement of ash temperature.

 The advantages of the equipment: in the cooling zone with a ring air supply, according to the set pressure, air volume and temperature monitoring system to adjust the oxygen supply in the kiln, to achieve the effect of regulating the calcination process, not only to solve the problem of partial sintering, coking, edge refining, pumping, complete combustion with the volatile matter emitted from the flue gas, so as to make the production process more stable and improve the stability and output of production.

Lime kiln air supply  and fan choice

No matter fuel mixing kiln or gas kiln, it needs a certain reasonable supply of wind, because any fuel combustion must have three conditions, namely fuel, air (oxygen), and open fire. Without any conditions, it will not burn.But the amount of wind is calculated based on the oxygen demand of the fuel’s combustible components, not too much or too little.If the excess air is discharged as flue gas, a lot of heat will be taken away. If the air volume is small, the fuel will not be fully burned, resulting in the downward motion of the calcining section and the waste of energy.Only reasonable air supply can have good calcining effect and achieve the purpose of saving energy.Its air volume is generally calculated according to the following formula : (omitted in the calculation formula) its pressure should be calculated according to the different resistance formed by different kiln type and different raw material granularity.Generally speaking, shaft kiln resistance can be pressed40 — 70 mm water column/effective height (m) formula to calculate.But the grain size of raw fuel is also different.Therefore, the fan should be selected on the basis of theoretical calculation and on the basis of specific furnace type and practical experience,Can have good use effect.

  • Previous:
  • Next:

  • Leave Your Message

    Write your message here and send it to us

    Related products

    • Juda Kiln-Inner Mongolia 300T/D×3 environmentally friendly lime kiln production lines

      Juda Kiln-Inner Mongolia 300T/D×3 environmental...

      Technical parameters and performance table No. Contents Parameters 01 (24h)Capacity 100-150t、200-250t、300-350t 02 Occupied area  3000–6000sq.m 03 Total Height 40-55M 04 Effective Height 28-36M 05 Outer diameter 7.5-9M 06 Inner diameter 3.5-6.5M 07 Firing temperature 1100℃-1150℃ 08 Firing period Circulation 09 Fuel Anthracite, 2-4cm ,calorific value greater than 6800 kcal/kg 10  coal consumption 1...

    • Juda Kiln-Cross section of bottom of kiln

      Juda Kiln-Cross section of bottom of kiln

      Superior performance of equipment (1) High daily production (up to 300 tons per day); (2) High product activity (up to 260~320 ml); (3) Low burn rate (≤10 per cent;) (4) Stable calcium oxide content (CaO≥90 per cent); (5) Easy operation and control in the kiln (no pumping, no deviation, no cascade, no furnace, balanced settlement of coal in the furnace); (6) Reduction in the amount of lime consumed by the product after use by the enterprise (30 per cent for steelmaking, desulphurization and s...

    • Kiln Body Steel Assembly

      Kiln Body Steel Assembly

      7. kiln system Kiln main structure: furnace body shell for metal shell, built refractory brick. Kiln refractory material is: a layer of refractory brick     Red brick     A layer of aluminum silicate fiber felt slag  The production capacity is 100-300 tons of lime per day. The diameter of the kiln is 4.5-6.0 meters, the outer diameter is 6.5-8.5 meters, the effective height of the kiln is 28-36 meters, and the total height is 40-55 meters. The kiln type in insulation, Multi-layer insulation m...

    • Automatic control assembly

      Automatic control assembly

      Automatic control system From electronic batching, lifting, automatic distributing, temperature control, air pressure, calcining, lime discharging, shipping, all adopted computer control system, combined with human-machine interface control system and ordinary computer control system.Achieved the man-machine interface and site synchronous operation, than the old lime kiln to save more than 50% of the labor, greatly improve the production efficiency, reduce the labor intensity, improve the wor...

    • Juda kiln -300T/D production line -EPC project

      Juda kiln -300T/D production line -EPC project

      Technological process: Batcher system: the stone and coal are respectively transported to the stone and coal cache buckets with belts;The weighing stone is then fed into the mixing belt through the feeder.The weighed coal goes into the mixing belt through the flat belt feeder. Feeding system: stone and coal stored in the mixed belt are transported to the hopper, which is operated by the winder to make the hopper circulate up and down for feeding, which improves the transport volume and achie...

    • Two Stage Lock Air Valve

      Two Stage Lock Air Valve

      10. Air lock system Two-stage air-locking valve device: is one of the indispensable processes in the production of lime shaft kiln. The general ash removal equipment is to stop the air and exhaust ash, this equipment is to keep the air and seal the ash: in the process of ash removal, due to the rotation sealing of the two baffles, the combustion air will not leak from the lower part, which can effectively improve the quality and output of lime. structure of the equipment: the device is compos...

    Leave Your Message

    Write your message here and send it to us