Hot-blast stove manufacturers in industrial energy consumption and emission problems, environmental protection type of hot-blast stove is now almost every industrial manufacturer will choose to use a device. But there are many people concerned about the performance of this thermal equipment. Hot-blast stove manufacturers mainly focus on the following analysis of such problems. 热风炉厂家热风炉厂家发现，目前使用热风炉设备的工业厂家为钢铁类的居多，工业厂家为降低高炉炼铁工序的能耗,建立了包含高炉、炉顶煤气余压回收透平发电装置(TRT)、鼓风机和热风炉在内的高炉炼铁工序优化模型,该优化模型包含了原燃料参数和工艺参数在内的9个优化变量,设定了变量上下限约束、工艺约束、物质和能量平衡约束等31个线性和非线性的约束条件,并利用序列二次规划法(SQP)求解该优化问题。优化结果表明:要使高炉炼铁工序能耗最小,应增大煤比、降低焦比、提高鼓风温度和采用高压炉顶操作。同时利用该优化模型和算法,分析了煤比、鼓风湿度、鼓风温度和鼓风富氧率对工序能耗及相应的TRT发电量的影响规律。
Hot blast furnace manufacturers found that most of the industrial plants using hot blast furnace equipment are iron and steel. To reduce the energy consumption of blast furnace ironmaking process, industrial manufacturers established an optimization model of blast furnace ironmaking process including blast furnace, top gas residual pressure recovery turbine power generation device (TRT), blower and hot blast stove. The model includes 9 optimization variables including raw fuel parameters and process parameters. 31 linear and non-linear constraints such as upper and lower limit constraints, process constraints, material and energy balance constraints are set. The optimization problem is solved by sequential quadratic programming (SQP). The optimization results show that in order to minimize the energy consumption of blast furnace ironmaking process, the coal ratio should be increased, the coke ratio should be reduced, the blast temperature should be increased and the operation of high pressure furnace top should be adopted. At the same time, using the optimization model and algorithm, the effects of coal ratio, blast temperature, blast oxygen enrichment rate on process energy consumption and corresponding TRT power generation were analyzed.
Aiming at the problem of high energy consumption commonly existing in the fan system of hot blast stove combustion-supporting, taking the fan system of 2# blast furnace in an iron and steel enterprise as an example, this paper introduces the application of frequency conversion transformation technology and replacing high-efficiency energy-saving fan technology in the fan system, and discusses the two transformation technologies from operation safety, energy-saving quantity, construction convenience, and one is the application of frequency conversion transformation technology and replacing high-efficiency energy-saving fan technology in the fan system. The results show that the technology of replacing high-efficiency and energy-saving fan has more advantages than the technology of frequency conversion transformation, and it is worth popularizing.
Because the hot blast stove manufacturer puts forward a hot blast stove system based on the prediction of supply air temperature, which can operate and control in variable period. It takes the lowest air supply temperature of the whole hot-blast stove system as the total control index, uses case-based reasoning to predict the end time of air supply, and dynamically adjusts the end point of combustion of the follow-up hot-blast stove according to the predicted results, so that the heat accumulated by each hot-blast stove in the combustion stage can be fully released, so as to achieve a reduction. The dual purposes of gas consumption and reduction of temperature fluctuation of hot air are discussed.
标签:   环氧地坪 地坪 环氧地坪漆 环氧地坪施工 热风炉