1. The steel industry. The waste heat generated in the production process of sintering, steel rolling, steelmaking and other processes in iron and steel enterprises is recycled and reused through reasonable cascade utilization, waste heat power generation, waste heat heating and other methods.
2. Non-ferrous industry. In the production process of electrolytic aluminum, alumina, copper and other industries, a large amount of waste heat is generated. The use of non-ferrous industry flue gas waste heat boilers and power generation devices, kiln flue gas radiation preheaters and exhaust gas heat exchangers can be used to generate waste heat for power generation. Improve the efficiency of resource utilization in the non-ferrous industry.
3. Cement industry. Recycle the waste heat from the kiln head and tail exhaust gas of the new dry-process cement rotary kiln and the waste heat on the surface of the rotary kiln shell. The main form of low-temperature waste heat power generation can be converted into high-quality electricity; the waste heat on the surface of the rotary kiln shell is heated in winter , Summer refrigeration, heating production media and other methods of recycling.
4. The glass industry. Using glass furnace waste heat comprehensive utilization, oxy-fuel combustion, and high-temperature batch pre-decomposition technology, the low-temperature waste heat resources of the float glass production line are recovered, and the flue gas waste heat discharged between the kiln head and the flue gas in the melting section of the glass furnace is used to generate electricity through low-temperature waste heat Equipment recycling.
5. Coal industry. The low-temperature waste heat resources discharged or generated by coal mine water, mine ventilation exhaust air, compressed air systems, etc., can be used to generate electricity through the available waste heat to achieve reasonable cascade utilization to meet the needs of refrigeration and heating places.
6. Petrochemical industry. Apply advanced coal gasification, advanced rectification, liquid caustic soda evaporation, ammonia vaporization waste liquid flash method to recover steam and other technologies, as well as new calcium carbide furnace, sulfuric acid waste heat power generation equipment, and use hydrogen chloride synthesis waste heat by-product middle and high pressure steam, vacuum distillation, dry ashing , Yellow phosphorus flue gas recycling, comprehensive utilization of calcium carbide furnace tail gas and other technologies to recover waste heat resources.
7. Printing and dyeing industry. The waste heat generated in the production process of the printing and dyeing industry can be utilized by using technologies such as high and medium temperature waste water and waste gas thermal energy recycling, high-efficiency energy-saving rewashing, and high-efficiency energy-saving spinning cooling, spinning heat medium circulation heating and other technologies and equipment, which can improve resource recycling. efficiency.
8. Paper industry. Through the use of waste heat recovery and utilization methods such as boiler pressure difference power generation, the paper-making production process is carried out to carry out the transformation of fully enclosed gas hood heat recovery and energy-saving technology, and the application of steam recovery technology in the production of chemical pulp is accelerated to use waste heat for power generation.
1. Before trial production, the waste heat power generation operator should obtain the corresponding qualification certificate (pressure vessel operation certificate), use four shifts and three operations, each value has 4 employees (2 operators, 2 inspection workers), the whole system has 1 full-time water technician; the system adopts the principle of centralized control in the central control room and field priority. The operator should be familiar with the process, not only to control the equipment and adjust the operating parameters on the computer screen, but also to know the current screen production status How does it correspond to the actual situation on site? Know how to use the information given on the screen to determine the operating status of each equipment. When there is an abnormality, the operation is fast and accurate; the inspector should have a clear process flow, have received on-site safety education, and have certain equipment maintenance experience.
2. Before trial production, prepare boiler operation regulations, steam turbine operation regulations, generator operation regulations, central control room operation regulations, and safe operation regulations.
3. Before trial production, on-site equipment should be sanitary, safety equipment should be complete, inspection tools and common maintenance tools should be well prepared.
4. The values of field instruments and meters are consistent with those of the central control. All control and interlocking relationships meet the technological requirements. The emergency shutdown and interlocking are accurate and reliable. The PC system indicates the point of failure and the alarm signal is reliable.
V. Required conditions: All electrical equipment installation work has been completed and passed the experience; all electrical tests (static) work have been completed; relay protection, electrical instrumentation and automatic device verification work has been completed, confirmed by transmission test The operating conditions are normal; the boilers and steam turbine parts are ready for operation.
6. Before trial production, the softened water system can be used normally, the installation unit has cooked the AQC and SP boilers, all safety valves have been adjusted and checked, the main steam pipeline has been flushed, and the circulating pool pipeline system has been cleaned and pre-cleaned. After the membrane is completed, the circulation tank is filled with water.
7. Before production, the grid-connected license has been obtained from the power supply department.
1. In the iron and steel industry, gradually promote dry coke quenching technology, blast furnace top pressure difference power generation technology, pure blast furnace gas boiler technology, low calorific value gas gas turbine technology, converter negative energy steelmaking technology, and regenerative steel rolling furnace technology. Build blast furnace top pressure difference power generation device, pure blast furnace gas boiler power generation device, low calorific value blast furnace gas power generation-fired steam turbine device, dry coke quenching device, etc.
2. In the non-ferrous metal industry, promote flue gas waste heat boilers and power generation devices, kiln flue gas radiation preheaters and exhaust gas heat exchangers, recover waste heat from other devices for boilers and power generation, implement energy-saving transformations for non-ferrous enterprises, and eliminate outdated technologies And equipment.
3. In the coal industry, promote gas extraction technology and gas utilization technology, and gradually establish an industrial system for the development and utilization of coalbed methane and coal mine gas. By 2015, the national coalbed methane (coal mine gas) output will reach 10 billion cubic meters, of which 5 billion cubic meters of CBM are extracted from the ground, with a utilization rate of 100%; underground gas drainage is 5 billion cubic meters, with a utilization rate of more than 60% .
4. In the chemical industry, promote coke oven gas chemical industry, power generation, civil gas, independent coking plant coking furnace dry quenching, energy-saving caustic soda production technology, soda ash waste heat utilization, closed calcium carbide furnace, sulfuric acid waste heat power generation technology, etc., if conditions permit Of chemical companies and coking companies to carry out energy-saving renovations.
5. In other industries, glass manufacturers also promote waste heat power generation devices, adsorption refrigeration systems, and low-temperature waste heat power generation-refrigeration equipment; promote fully insulated oxygen-enriched, fully oxy-fueled float glass furnaces to reduce flue heat loss; introduce Advanced energy-saving equipment and materials, eliminating outdated high-energy-consuming equipment. In textile, light industry and other industries, promote the recovery and utilization of waste heat, pressure, and energy such as pressure difference power generation of heating boilers, and encourage centralized construction of public projects to achieve energy cascade utilization.