High-temperature air combustion intensifying device and method applicable to low heating value mixed garbage

Abstract

The invention discloses a high-temperature air combustion intensifying device and method applicable to low heating value mixed garbage, wherein a low-temperature preheater is arranged on the rear side of a U-shaped tail part flue; a garbage feeding opening is arranged on the side wall of the lower part of a furnace chamber; the side wall of the upper part of the furnace chamber is connected with the upper part of a cyclone separator; the bottom part of the cyclone separator is connected with the upper end of a back feeder; the lower end of the back feeder is connected with the side wall of the lower part of the furnace chamber; the upper end of the cyclone separator is connected with the upper part of the front side of a U-shaped combustion chamber; the lower end of the U-shaped combustion chamber is connected with the side wall of the lower part of the furnace chamber; the lower end of the furnace chamber is connected with the side wall of the lower part of the furnace chamber through a water-cooled cold slag sorting and back feeding device; and the upper part of the rear side of the U-shaped combustion chamber is connected with the upper part of the front side of the U-shaped tail part flue. The method utilizing the high-temperature air to intensify the low heating value garbage mixed combustion is more suitable for the domestic characteristics that the garbage has complicated components, high moisture and low heating value, has wider fuel application range, and is more sufficient and stable in combustion, the garbage can be purely combusted without the need of coal, the energy consumption is reduced, and the operating economy is improved.

Description

technical field [0001] The invention relates to solid waste incineration disposal technology, in particular to a high-temperature air enhanced combustion device and method suitable for mixed waste with low calorific value. Background technique [0002] With the acceleration of urbanization in my country, the discharge of urban domestic waste is increasing, with an annual growth rate of 8% to 10%, and the requirement for harmless and resourceful treatment of waste is becoming increasingly urgent. Sanitary landfill, incineration, composting, recycling, and comprehensive utilization are currently widely used waste treatment technologies and methods at home and abroad. From the perspective of sustainable development strategy, the goal of domestic waste disposal should be to achieve harmlessness, resource utilization and reduction. Incineration treatment of domestic waste is a fast and effective technical method to achieve reduction. At present, landfill is the main way of dome...

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies of complex garbage pretreatment system, difficult slag discharge, low incineration power generation efficiency, high coal blending ratio and insufficient combustion, and provide a high-temperature air enhanced combustion device and method suitable for low calorific value mixed garbage

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