This paper introduces a new technology of waste heat utilization for tail gas of lime rotary kiln by flue gas\|soft water thermal tubular exchanger,and concludes that the technology can not only make the most of waste heat of  tail gas,save energy,reduce consumption and protect environment,but also can bring considerable economic benefit.

With low calories and low temperature,the waste heat of the heat transfer oil in beam shaft kiln was easy to overlook.Based on thermal analysis and waste heat analysis of the heat transfer oil,the article proposed a comprehensive utilization program of the waste heat of heat transfer oil and waste gas,which had the features such as low invest,high return,simple operation,energy saving and emission reduction.

For radiation heat untilization of lime rotary kiln tube, this paper introduces a technical program of recycling radiation heat by designing gathering heat cover and  waste heat untilization methods of heating,bathing and power generation in lime production area. Based on the calculation of recycle heat  and investment cost,it is found that the project is suitable for promotion and application with the advantages of short  payback  period and high return benefit.

This paper introduces the measures of optimizing the process operation and ensuring stable operation of the equipment to reduce the rate of immature and overcalcined lime of No.4 and No.5 Maerz kilns at the condition of low gas value.

This paper studies the effects of salt-soaking on properties of Cr2O3-Al2O3-ZrO2 bricks for coal water slurry pressurized gasifier, especially the influence on erosion resistance and penetration resistance. The result shows that the erosion resistance and penetration resistance of Cr2O3-Al2O3-ZrO2 bricks after salt-soaking is better than before.

Based on effects of lime grain size and temperature of slaking water on slaking time during the lime slaking process,the process equipment of calcium hydroxide was improved and optimized for energy saving, emission and production cost reduction.

According to the initial conditions of local raw coal and the requirements for limestone calcination and capacities of 5 lime kilns of 600t·d-1,a lime production line with the  annual output of  1 million tons are equipped with a pulverized coal preparation system. Aiming at the problems of pulverized coal preparation system before,some improvement measures are present in the design process and finally verified by actual production.