1. Introduction The waste incineration power generation technology has the characteristics of high efficiency in the treatment of domestic waste, energy conservation, short construction period, and environmental protection; at the same time, CFBB (circulating fluidized bed boilers) has high combustion efficiency and strong adaptability. With the characteristics of large combustion intensity, it is a new boiler process worthy of adoption. Therefore, the use of circulating fluidized bed boilers for incineration of waste power generation can not only solve the problem of municipal solid waste, but also appropriately alleviate the energy crisis in recent years. The SUPMAX800 system independently developed by Shanghai Automation Instrumentation Co., Ltd. and Dahua Instrument Factory DCS, in addition to the conventional DCS control function, also supports the function of HART fieldbus. Through the HART fieldbus device management software, maintenance and management of HART devices can be realized. The function was successfully applied in the project of the waste incineration power plant.
2. Waste incineration power plant process flow process The circulating fluidized bed waste incineration treatment technology and equipment integrate waste incineration, heating and power generation. It is a new type of advanced technology developed based on circulating fluidized bed combustion technology. Garbage disposal technology and equipment. Circulating fluidized bed is a type of energy-saving and environmentally friendly combustion furnace that is clearly recommended by the relevant national industry policies. This type of furnace is particularly suitable for burning inferior fuels and has good adaptability to high ash, high moisture and low calorific value of domestic garbage.
Waste incineration process shown in Figure 1. 
When urban waste is transported to the incineration plant and dumped into the garbage pool, it is grabbed into the hopper, put into the furnace from the top of the incinerator, and falls in the center of the movable bed; in the fluidized bed, the garbage is squeezed by the vigorously moving sand. Fragments burn out quickly. The generated steam enters the steam turbine for work and power generation, and the generated flue gas enters dust emission or is comprehensively utilized.
3. Instrument Control Design and Application
The SUPMAX800 control system completes the MCS (modulation control system), SCS (sequence control system), electrical control system, DAS (data acquisition system) and boiler furnace safety monitoring system. FSSS (furnaces safety supeoisory system) function to meet the requirements of various operating conditions of the unit to ensure safe, reliable and efficient operation of the unit. SUPMAX800 control system according to the production process of the waste power plant, hierarchical hierarchical design, so that in the DCS partial failure or equipment failure, automatic or the operator can manually select the lower level of control, without losing control of the entire process.
As shown in Fig. 2, SUPMAX800 control system realizes the data communication function between HART equipment and upper computer through its HART card piece, each HART card can connect 8 pieces of HART apparatuses, HART apparatus management software passes the serial communication way and Connected by HART card, HART performs the functions of the bridge and realizes channel switching of devices with different addresses. 
4. Concluding remarks With the rapid development of information technology, the interconnection between equipment and instrumentation in industrial process automation and manufacturing automation is gradually deviating from the traditional decentralized control system and fieldbus control system. In the transition period when the fieldbus standard has not fully replaced the 4-20MA signal mode, we need a transitional period protocol that supports both the digital signal of the new smart meter and the traditional analog signal. The HART protocol is the most representative and universal one. One. Currently, many distributed control systems do not support the HART protocol, or use AI cards only to obtain analog input information from HART devices. For other problems where digital information cannot be obtained, Shanghai Automation Instrumentation Co., Ltd. has developed a HART device acquisition and distribution system. , to complete the release of HART device information in a decentralized control system. This is an extension of the functions of its own DCS products. It can also meet the needs of the market in time and meet the needs of customers.
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Technical Parameters:
1. Weight: 1500kg
2. Planting method: Round wire
3. Production speed: 500 rpm
4. Planting peak: 65mm
5. Planting pore size: φ1.6-φ4.0
6. Storable procedures: 1000 models
7. X-axis travel: 400mm;
8. Y-axis travel: 320mm;
9. Z-axis travel: 160mm;
10. Air input pressure: 0.8MPa
11. Rated voltage frequency single phase: 220V, 50Hz
12. Machine power: 2.0kw
13. Machine dimensions: 1.14 meters long, 1.84 meters wide and 1.75 meters high
14. Packing size: 1.8 meters length, 2.1 meters width, 2.1 meters height (conforming to standard container requirements).
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