Method for drying refuse of refuse burning generating plant using solar hot-air device

Abstract

A method of using hot air unit of solar energy to dry garbage used in garbage incineration power plant utilizes hot air generated by solar energy unit to carry out predrying treatment on garbage to be used by garbage power plant in order to raise heat valve of garbage incineration and to raise wind blowing temperature of firepot as well as to ensure high temperature in incinerator.

Description

technical field [0001] The invention relates to heat transfer, microbiology, fluid mechanics, solar energy utilization technology, and power plant thermal power technology, and also relates to a method for increasing the calorific value of garbage through pre-drying, in particular to a method for utilizing heat generated by a solar hot air device. A new method for pre-drying the waste in the waste pit of the waste incineration power plant with air so as to improve the calorific value of waste incineration. Background technique [0002] According to the survey, the amount of domestic garbage removal in my country's cities is increasing at a rate of about 4% per year, with a total amount of 150 million tons. my country's domestic waste has a high water content, generally 55% to 65%, and some southern cities can reach as high as 70% in summer. At the same time, the proportion of kitchen waste and catering and other organic waste in my country's domestic waste is large, ranging ...

AI Technical Summary

Problems solved by technology

[0007] (3) Due to the long time required for the natural heating of the garbage, the heating efficiency of the garbage is low, which requires a large volume of the garbage pit

This also increases the construction cost and construction difficulty of the garbage pit.

[0008] (4) Along with the natural fermentation process of the garbage, the garbage will produce malodorous gas, garbage leachate, and a large number of harmful bacteria will also multiply

[0012] (3) Directly affect the waste heat boiler power generation system set up for heat recovery

[0014] (5) The decrease of the temperature in the flue gas will cause the high moisture in the flue gas to react with hydrogen chloride gas, which will increase the damage to the waste incineration equipment and cause great harm to the safe operation of the incineration boiler

The main disadvantage of this method is that the rotating device consumes a lot of power and the system setting is more complicated.