论文部分内容阅读
一、前言秦皇岛耐火材料厂生产中的“老大难”问题是:入窑砖坯的含水率高,加热炉热量供应不足,干燥温度低,尤其在冬季,隧道干燥器的平均温度为89.7℃(见表1),未能达到工艺要求,造成成品表面龟裂,合格率低,能耗高.为了解决这一问题,厂有关部门组织力量对管网和余热量进行了热平衡测试,并提出扩大管径,改造管网的设计施工方案.该方案实施后,余热资源得到充分利用,干燥温度显著提高,取得了较好的效果. 二、干燥砖坯的热平衡计算隧道干燥器温度太低调查清楚后,摆在我
I. INTRODUCTION The “oldest” problem in the production of Qinhuangdao Refractory Factory is that the moisture content of bricks entering the kiln is high, the heat supply to the furnace is insufficient, and the drying temperature is low, especially in winter, the average temperature of the tunnel dryer is 89.7°C (see Table 1), failed to meet the process requirements, resulting in surface cracking of finished products, low qualification rate, high energy consumption. In order to solve this problem, the relevant departments of the plant organized the thermal balance test of the pipe network and residual heat, and proposed to expand the management After the implementation of the program, the waste heat resources have been fully utilized, the drying temperature has been significantly improved, and good results have been achieved. Second, the heat balance calculation of the dry brick blank is too low. Posing to me