Fixed grate incinerator

Abstract

The invention belongs to the field of garbage incineration equipment and particularly relates to a fixed grate incinerator. The fixed grate incinerator at least comprises a main combustion chamber anda fixed grate. The plate surface of the fixed grate is obliquely arranged. The high end of the fixed grate constitutes the material input end. The lower end of the fixed grate constitutes the ash residue outlet end for ash residues formed by incinerating materials. The ash residue outlet end communicates with an ash discharge assembly. A hot air chamber is arranged below the main combustion chamber. A hot air supply path is through in the fixed grate. The fixed grate incinerator further comprises push rods and power parts. The push rods penetrate through a material layer on the fixed grate atthe maximum lift. A push rod assembly further comprises shaft sleeves with a preset length. One end of each shaft sleeve penetrates through the fixed grate in the movement direction of the corresponding push rod and is fixedly connected to the fixed grate. Ventilation gaps for allowing air to pass through are formed between the shaft sleeves and the corresponding push rods. The other ends of theshaft sleeves communicate with an external environment and / or an air-cooling chamber. The fixed grate incinerator is high in material incineration efficiency and good in assembly working reliability,and the service life of the fixed grate incinerator can also be effectively prolonged.

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, high 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. As of 2014, the annual stockpiling of garbage in the country has reached more than 6 billion tons, occupying as much as 500 million m2 (750,000 mu) of land. Among the more than 600 cities in the country, more than 200 have been surrounded by garbage mountains. There are nearly 2,000 garbage dumps over 50m2 within 1,260km2 of urb...

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 blade thermally expands too wide and "stuck" in the above gap, which causes the incinerator, which has been continuously incinerated all the year round, to have 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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