by qizhenapp » Fri Dec 22, 2017 8:36 am
<p>Fuel combustion products, should not pollute the product, or the degree of pollution within the allowable range of product quality. Therefore calcined concentrate and firing high quality products, we must adhere to the use of low ash liquid fuel or high calorific value gas fuel. Due to the high fuel consumption of our country's GNP, resulting in a shortage of fuel resources, relatively speaking, coal and oil less, blast furnace, coke oven, converter and other recovery of gas is not enough to use.</p><p> Starting from the actual situation in our country, to carry out the key tasks are: 1, the development of efficient pulverized coal preparation equipment, the application of anthracite powder as rotary kiln fuel. Comprehensive utilization of coal resources, the use of producer gas (especially the second stage gas) and coal-water slurry as a refractory furnace fuel. Developed dual or triple burner technology that uses both gas and solid fuels, high calorific fuel and low calorific fuel, and oxygen-enriched. Fifth, to promote the refractory furnace oxygen-rich combustion technology oxygen-rich combustion technology can save energy by 20% to 30%. The O2 content of oxygen-enriched air is generally 22% to 30%.</p><p> At present, the technology of small-sized oxygen generation in our country has made great progress. It is economically feasible to use oxy-fuel to promote combustion. Therefore, the promotion of refractory furnaces uses oxygen-rich combustion technology and the conditions are ripe. Improve the level of automatic control of furnace kiln Refractories industrial furnaces in China overall low level of automation and control, a considerable part of the kiln dependence on the operator is very large, directly related to the furnace kiln consumption and yield, it is necessary to gradually increase Control level.</p><p> The key to automatic control of the kiln lies in solving a temperature measuring instrument, followed by data transmission and intelligent control. Monitor the parameters such as the temperature and pressure of the kiln, predict and adjust the operation trend, and realize the digital operation of the kiln so as to achieve the goal of improving the yield, reducing the energy consumption and increasing the expenditure. Intelligent control of the kiln is the direction of the development of modern kilns.</p>