Domestic waste incineration system control set technology

Source: B&R Working Committee

Applicating Company

Beijing Chaoyang Environment Group Co.LTD

Technology Name

Technical principle

(1) Domestic waste incineration feeding control technology
The common double-layer double track system in the industry is structurally modified, and the concept of single-layer double track shift operation is proposed to solve the drawbacks of the traditional feeding system when more than three garbage cranes are running at the same time, and the stagnation of the feeding system caused by the maintenance of the middle garbage crane, so as to improve the feeding efficiency and save space in the garbage pool; the special garbage crane device for maintenance is added, and the safety elevation and load of the maintenance crane and other key indicators are accurately measured to achieve maintenance without The system control indexes for the operation of the feeding system facilities are established, and the time, height, position and load control requirements for each equipment of the feeding system in the process of lifting, changing position and overhaul are proposed to ensure that the operations are carried out safely and orderly.

(2) domestic waste incineration odor control technology

For domestic waste incineration facilities in the collection of odor is difficult, low collection efficiency to carry out targeted research, to solve the problem of high costs when operating large air volume, small air volume operation when the odor solution is not complete, in order to ensure that the odor collection efficiency while effectively reducing the operating efficiency of enterprises. ① proposed domestic waste incineration facilities gas collection system flow direction, the main layout of the building, the layout of traffic flow control indicators; ② respectively targeted to put forward the garbage pool, unloading hall, leachate treatment workshop, slag workshop and other key links odor collection frequency, wind speed and pressure control indicators; ③ put forward the above different links deodorization emergency deodorization technical indicators.

(3) domestic waste incineration furnace temperature control technology

Furnace temperature control is the core of improving power generation efficiency and avoiding harmful gas generation of dioxins, as well as a key measure to improve slag strength. This technology is based on the actual operating experience of domestic waste incineration plant to propose the key indicators of furnace temperature control: ① domestic waste moisture content control indicators and waste into the furnace control indicators; ② incinerator primary and secondary air intake system structure design and air volume control indicators; ③ incineration system thermal cycle system structure design and waste heat utilization technology system; ④ chamber waste residence time and system water circulation control indicators.

(4) domestic waste incineration slag control technology

① to achieve the slag thermal discretionary rate requirements of furnace temperature control and oxygen content control indicators; ② to meet the slag utilization strength and water content requirements of the slag mode, slag cooling mode and slag-water separation technology indicators; ③ to meet the needs of slag resource-based products slag heavy metal control index system, through the above slag control technology indicators control, so that the slag in the water content, strength, particle size uniformity and other performance significantly improved It is conducive to the development of higher-value resource-based products and improve the use of slag resource-based products.

(5) the whole process of domestic waste incineration safety control technology

In the key aspects of the control technology special research, but also to carry out a comprehensive study of the whole process of domestic waste incineration plant management technology, the formation of the whole process of domestic waste incineration plant management technology manual: ① to ensure the safe and efficient operation of the system safety inspection key links, inspection indicators, inspection frequency indicators; ② to ensure the stable operation of the system of key equipment technical performance safety evaluation index system and key maintenance, routine maintenance indicators; ③ to ensure the safety of pollutant emissions of comprehensive technical indicators analysis and pollutant emissions early warning system; ④ other safety, health, logistics and other management technology system.

Scope of application

This technology is aimed at the control of key aspects of domestic waste incineration plants, such as feed, furnace temperature, odor and slag, and other special technical research. Through systematic research and development, a complete set of technology system and standard manual for the control of the whole process of domestic waste incineration has been formed with national significance. Applicable to domestic waste incineration power generation, can effectively improve the domestic waste incineration plant after the completion of the feed, odor control, energy-saving temperature control and slag treatment and other whole process series control system.

Process flow and description

The garbage truck is weighed by a weighbridge and then enters the discharge platform where the garbage is unloaded into the garbage tank. The garbage is mixed by the garbage crane to leach out the water, fully fermented and then put into the feed hopper of the incinerator. The push grate in the incinerator pushes the waste onto the incinerator grate for burning. The flue gas generated by the incineration is treated by the process and then discharged through the chimney to meet the standard. The leachate generated from the garbage pond is pumped to the treatment station through a closed pipe. The fly ash generated in the waste incineration process is transported out for disposal through a sealed hazardous waste transport vehicle. The thermal energy generated from waste incineration is converted into steam by the waste heat boiler to drive the turbine generator set to generate electricity, which is connected to the national grid through 110kV transmission line.

Promotion prospects

This technology has been systematically applied in the only standardized clean domestic waste incineration power plant in China, and promoted in a number of domestic waste incineration power generation into Hebei, Shanghai, Shenyang, etc., which is highly recognized by the industry and has a strong industry influence.

This technology has been fully applied in the national environmental facilities open units, through the environmental facilities open, exchange is conducive to the rapid replication and promotion of this technology in the industry-wide, has a strong application potential and promotion value.