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In many production industries, such as building materials, metallurgy, chemical industry, environmental protection, etc., the widespread use of swing rounding for solid materials for mechanical, physical or chemical treatment, such equipment is called rotary kilns. The high temperature of the rotary kiln is the process of burning into clycer, so the rotary kiln is the host in cement production, commonly known as the "heart" of the cement factory. The material of the internal heating rotary kiln is in direct contact with the flame and flue gas, and the atmosphere of oxidation or reduction can be achieved by adjusting the furnace, the wall wall of the barrel is built with refraorbic bricks, the head and tail cover is lined with high-strength wear-resistant pouring material, and the head and tail cover and the cylinder body are flexible seals, which can completely eliminate dust and leakage. High-temperature insulation paint engineers pointed out that the rotary kiln can take multi-gear support, so that the length of the cylinder body up to 66 meters, the maximum temperature of use up to 1600 degrees C. The output of internal heating cement rotary kiln is large, and the applicable fuels are liquefied gas, natural gas, gas, fuel oil, coal powder, coal, etc.
Rotary kilns are generally divided into kiln cylinder body lying (slightly sloped), and can make swing movement called rotary kiln, also known as rotary kiln; The main equipment of the rotary kiln is the kiln shell, the kiln shell is the main body of the rotary kiln (rotary kiln), the thickness of the kiln shell steel plate is about 40mm, the temperature in the kiln shell to reach about 1000 degrees Celsius, the high temperature to reach 1600 degrees C, so the insulation of the kiln shell to prevent heat loss becomes the key to the rotary kiln. High temperature insulation paint has a good insulation, the traditional kiln shell in order to better insulation, the interior has a layer of about 200mm refrater-resistant brick or silicon carbide brick, such a kiln shell weight ratio, kiln shell in operation, due to high temperature and load-bearing relations, the kiln shell will have elliptical deformation, which will have pressure on the kiln brick, affecting the life of the kiln brick. The use of heat-resistant insulation paint to double the life of rotary kilns, greatly extend the use of rotary kilns, increase industrial production time, energy-saving energy and time, to bring immeasurable economic benefits to enterprises.
technology to drive research and development, the use of new materials, the embodiment of enterprise benefits. Now there is a very good calcination rotary kiln insulation material, high temperature insulation paint, with exclusive patented technology, painted as water-based inorgeline paint, the use of special high temperature solution and selected nano-ceramic hollow microbeads, silicon aluminum Fiber and other inorgeous raw materials refined, the use of special high-temperature solution, temperature tolerance in 2000 degrees C, thermal conductivity of only 0.03W/m.K, small weight, light weight, can greatly reduce the weight of the painted object. Heat-resistant insulation paint can effectively suppress and shield infrared radiation heat and heat transfer heat, thermal insulation suppression efficiency of up to about 90%, can inhibit the heat radiation of high-temperature objects and heat transfer loss, the internal heat of the rotary kiln Can maintain 70% without loss, in addition to high temperature insulation paint fire retardant, wear-resistant pressure, insulation resistance wear, acid and alkali resistance, light weight, construction convenience, long service life and so on, paint has excellent high performance has a wide range of applications, good benefits.
new rotary kiln in order to better insulation, reduce the weight of the kiln shell, reduce the heat dissipation of steel plate, but also to further protect the kiln shell steel plate, now painted with heat-resistant insulation insulation paint, kiln paint construction methods are as follows:
1, the existing rotary kiln, heat-resistant insulation paint painted in the kiln shell On the metal shell, only a few millimeters, can very goodly reduce the temperature of the metal shell of the kiln shell, prevent heat loss, save energy, but also better protect the metal shell of the kiln shell from air corrosion rust, and increase the weight of insulation material is very small, high temperature insulation paint coating hardness, can withstand a certain external force impact.
2, heat-resistant insulation paint painted in the inner wall of the kiln shell metal, insulation brick or silicon carbide brick, the thermal conductivity of the paint is the traditional insulation heat insulation coefficient is several times lower, the thickness of the paint can reduce the thickness of the insulation brick or silicon carbide brick several times the thickness, greatly reducing the overall weight of calcined rotary kiln, and high compaction, can better prevent corrosion gas in the kiln contact back to the kiln plate.
3, heat-resistant insulation paint paint in the calcined rotary kiln tile temperature or oil tank temperature is more than 45 degrees C, to do a good job of watt or other parts of the high temperature radiation heat, to prevent the temperature of the watt or oil tank is too high, in the tile or oil tank brushing heat insulation paint, can play a good role in preventing high temperature heat on the tile or oil tank impact.
High temperature insulation paint in the rotary kiln body technology feasible, economic savings, supporting parts rationality and environmental and social emission reduction measures, from energy production to consumption of all links, reduce consumption, reduce losses and pollutant emissions, stop waste, effective and rational use of energy, rotary kiln body can achieve good and fast economic development, so that calcined rotary kiln body life doubled, greatly extending the effective use of the return kiln body, energy saving significantly.