Circulating fluidized bed waste sludge incinerator

Abstract

The invention discloses a circulating fluidized bed garbage sludge incinerator. The incinerator is characterized in that a countercurrent dry pyrolysis feeder (2) is arranged on a fluidized bed boiler (1), a high-temperature air bellow (13) is arranged at the bottom of the fluidized bed boiler (1), a cooling slag discharge device (14) is arranged on the lower portion of the high-temperature air bellow (13), a heat preservation type air preheater (8) is connected with the top of the fluidized bed boiler (1), the inlet position of the high-temperature air bellow (13) is connected with a primary air fan (12), an air suction opening of the primary air fan (12) is connected to the heat preservation type air preheater (8), and a coiler superheater (6) and a coiler economizer (7) are arranged in the heat preservation type air preheater (8). The circulating fluidized bed garbage sludge incinerator can be suitable for burning high-moisture garbage sludge, the burning efficiency is high, little auxiliary fuel is added, running is stable, the system resistance is small, the energy consumption is low, and the safety running rate is high.

Description

technical field [0001] The invention relates to a circulating fluidized bed garbage sludge incinerator, which belongs to the technical field of environmental protection. Background technique [0002] At present, circulating fluidized beds are widely used in municipal solid waste incineration and sludge incineration. However, there are problems such as large investment in system equipment, dust blocking of heat exchange equipment in the flue, serious corrosion, many operational failures, large system resistance, high energy consumption, and difficult process operation and maintenance. The main reason is that the incineration process is unreasonable and the auxiliary equipment is defective, which makes the system unsuitable for the high moisture content of the raw materials and the large changes in volume, calorific value and volatile matter. Contents of the invention [0003] The object of the present invention is to provide a circulating fluidized bed garbage sludge incin...

AI Technical Summary

Problems solved by technology

However, there are problems such as large investment in system equipment, dust blockage of heat exchange equipment in the flue, serious corrosion, many operational failures, large system resistance, high energy consumption, and difficult process operation and maintenance.

The main reason is that the incineration process is unreasonable and the supporting auxiliary equipment has defects, which makes the system unsuitable for the high moisture content of the raw materials and the large changes in volume, calorific value and volatile matter.

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