Limestone calcination process can be divided into the following four steps: (1) thermal expansion limestone begins to break down in front of from room temperature to about 900 ℃, its volume will vary due to thermal expansion. (2) decomposition of calcium carbonate limestone surface when the temperature reaches or exceeds the calcium carbonate decomposition temperature of 898 ℃, the calcium carbonate in limestone began to break down, the decomposition time required depends on the size and temperature of the limestone calcination zone. During the decomposition of limestone surface moving from the surface to the inside of the resulting lime attached to the not yet decomposed limestone, CO2 generated escape from the limestone. After the decomposition reaction, the volume of the volume of lime to break down before the start of limestone difference is small, since 44% of CO2 escaping from the decomposition of limestone, so the end of the decomposition reaction of the lime is highly loose solids. After (3) decomposition reaction sintering lime, lime kiln energy efficiency, if the resulting lime still firing zone, the lime in the CaO crystals will continue to grow, it will reduce the volume of lime, so that lime sintering. (4) lime lime shrink from about 900 ℃ down to 60 ℃, its volume will be due to cold and contracted. Lime sintering, which significantly reduces the degree of activity. We should try to avoid sintering of lime. Air duct from the furnace bottom central and peripheral duct into the kiln, the kiln pressure depending on the level of effective height and limestone and anthracite size may be. The effective height of 15 ~ 20m shaft kiln, the general into the kiln of pressure (gauge pressure) is about 5 ~ 6kPa. Air volume production capacity may be overlooked, lime kiln data, obtained by the calcination of limestone lime kiln by means of a rotating conical bottom feeder, the feeder blade and the star of the discharge. The material temperature should be maintained at 60 ~ 80 ℃. Exhaust gas from the top of the kiln, lime kiln equipment, into the dust, Tang Hai kiln exhaust gas temperature should be maintained at 120 ~ 150 ℃. Fuel and combustion air is strictly controlled by the burning heat evenly to the need calcined lime, calcined efficient and uniform. HTF system is a burning beam cooling protection system means having control equipment, oil temperature exceeds the set value is automatically sound the alarm and security system installed diesel power unit, high safety factor. In the charge downward movement, under burning beams or both sides to form a "V" space, the operator can observe the hole kiln wall view kiln charge, may at any time observed two burning kiln firing between the beam health The V-shaped space to bring two major advantages: first, the gas could be covered with calcined; second, to avoid the downward movement of the limestone / lime into contact with the burner, thus avoiding frequent maintenance burner. Centrifugal fans burning by a hot exhaust system with exhaust gas suction through the lime kiln. This wind turbine is equipped with inverter to adjust speed to suit different situations successfully produce lime kiln. Tanghai lime kiln, vertical kiln, kiln blue sky (certified merchants) are provided by LUOZHUANG Kiln Ltd. Linyi City blue sky. Luozhuang District, Linyi City, blue sky Kiln Ltd. (www.lyshihuiyao.com) (www.lyshihuiyao.com) is specialized in "lime kiln, lime kiln environmental protection, energy saving vertical furnace technology development and promotion" of the enterprise, Companies adhering to the "honesty, hard service" concept, to provide you with the highest quality products and services. Welcome to inquire! Contact: Liu light.