Fixed grate incinerator

Abstract

The invention belongs to the field of waste incineration equipment and particularly relates to a fixed grate incinerator comprising a main combustion chamber and a fixed fire grate. The fixed fire grate is arranged obliquely, the higher end is provide with a material input end, the lower end is provided a slag outlet for slags after material combustion, and the slag outlet is communicated with a slag discharging component; a hot air chamber is arranged below the main combustion chamber; a hot air supply path penetrates the fixed fire grate; the fixed grate incinerator further comprises an ejecting rod and a power portion; the maximum lift of the ejecting rod penetrates the material layer of the fixed fire grate; an ejecting rod component further comprises a shaft sleeve with the preset length, one end of the shaft sleeve penetrates and is fixedly connected to the fixed fire grate along the moving direction of the ejecting rod, a vent gap allowing the air to penetrate is formed between the shaft sleeve and the ejecting rod, and the other end of the shaft sleeve is communicated with the outside and / or an air cooling chamber. The fixed grate incinerator has the advantages that material burning efficiency is high, the component operation reliability is high, and the service life is prolonged effectively.

Description

technical field [0001] The invention belongs to the field of waste incineration equipment, and in particular relates to a fixed grate incinerator with excellent wind circulation capability, long service life and low maintenance frequency. Background technique [0002] With the rapid development of production and the rapid rise of the economy, my country has entered the ranks of countries with high production of urban domestic waste. According to statistics, in 1990, the total output of urban garbage in China was 69 million tons, among which the garbage output in Shanghai was 2.7 million tons (about 7,500 tons per day), ranking first in the country. By 2014, the annual stockpiling of garbage in the country had reached more than 6 billion tons, occupying as much as 500 million square meters of land 2 (together 750,000 mu). Among the more than 600 cities in the country, more than 200 are surrounded by garbage mountains. Shanghai urban area 1260km 2 50m in range 2 There are...

AI Technical Summary

Problems solved by technology

When the blade turns over and passes through the gap of the fixed grate next time, it often happens that the thermal expansion of the blade is too wide and "stuck" in the above gap, so that the incinerator, which has been continuously incinerated all the year round, has to be shut down frequently for maintenance, thus causing great harm to the incinerator manufacturer. have a huge impact on the actual production benefits of

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