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我厂于1958年筹建,1959年投产,当时规模为年产合成氨1万吨,现已发展为年产总氨(合成氨加粗甲醇)10万吨。主要产品是碳酸氢铵、尿素、甲醇和甲醛等九种。因我厂是由一个小型合成氨试验厂,先后经过六次扩建改造逐步发展成为一个10万吨级中型化肥厂,所以工艺流程复杂,系统多,设备陈旧,形号多,能源利用率低,浪费比较严重。我厂又是本市十大耗能户之一,年能耗折标煤近29万吨(包括动力能耗与原料焦能耗)。在国家能源紧张的情况下,做好能量平衡,为开展节能工作创造有利条件。我厂第一次能量平衡已经化工部化肥司、市化工局、市节煤办等上级领导机关来厂验收合格,发给了合格证。现将我厂的一些做法和体会简述如下:
Our factory was established in 1958 and put into operation in 1959. At that time, the annual output was 10,000 tons of synthetic ammonia, and it has now been developed into an annual output of 100,000 tons of total ammonia (synthetic ammonia plus crude methanol). The main products are nine types of ammonium bicarbonate, urea, methanol and formaldehyde. Because our plant is a small-scale ammonia synthesis pilot plant, it has gradually developed into a 100,000 tons medium-scale chemical fertilizer plant after six times of expansion and reconstruction. Therefore, the process is complicated, the system is large, the equipment is obsolete, the shape number is many, and the energy utilization rate is low. More serious. Our factory is also one of the ten most energy-consuming households in the city. It annually consumes nearly 290,000 tons of standard coal (including power consumption and raw material coke energy consumption). Under the circumstances of the country’s energy shortage, we must balance energy and create favorable conditions for energy conservation. The first time the energy balance of our factory has been approved by the Chemical Fertilizer Department of the Ministry of Chemical Industry, the Municipal Bureau of Chemical Industry, and the Municipal Coal-saving Office, etc., and passed the acceptance check and issued a certificate of conformity. Here are some of our practices and experiences outlined below: