Layout structure for incinerator furnace wall of household waste incineration power plant
A technology for domestic waste incineration and layout structure, which is applied in the direction of incinerator, combustion method, combustion type, etc., and can solve problems such as instability
Active Publication Date: 2015-05-27
SHANGHAI SUS ENVIRONMENT
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Problems solved by technology
However, as a kind of fuel, domestic waste can only be estimated through years of test data to estimate the calorific value of waste at the design point, as a basis for theoretical calculations, which is bound to be different from the actual There are unavoidable differences in operation
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[0023] The three-stage mechanical reciprocating grate of the present invention is composed of a pusher section 21 , a drying grate section 22 , a combustion grate section 23 , and a burning grate section 24 .
[0024] Such as figure 1 As shown, it is a schematic diagram of the furnace wall layout structure of a household waste incinerator adopting an air-cooled furnace wall structure. The furnace wall of the incinerator adopting the three-stage mechanical reciprocating grate furnace is divided into different areas according to the functions, which are divided into: membrane water wall (front and rear arch) area 1, the lower side wall area of the feeding hopper 2, and the pusher The lower side wall area 3, the upper side wall area of the drying grate 4, the upper part of the remaining two sections of the grate (combustion grate section, ember grate section) and the garbage contact area 5, the upper part of each section of the grate and the garbage non-contact area 6 . The ...
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The invention discloses a layout structure for an incinerator furnace wall of a household waste incineration power plant. The incinerator furnace wall for household waste incineration adopts a three-segment mechanical reciprocating grate; the incineration furnace wall body is divided into different areas according to the functions of the furnace wall; fireproof and heat insulation materials corresponding to the area characteristic are combined and arranged in each area, so that the normal operation of the whole waste incinerator is maintained. Besides, a local high-temperature area inside the incinerator is reduced on the premise that the combustible substance in the waste in a furnace sufficiently burns out, and the ash content in the combustible substance is constrained to become liquid state in a softening manner, so that the serious coking phenomenon of the furnace wall in the combustion segment grate high-temperature area is effectively reduced or prevented, and the furnace shutdown situation due to coking inside the incinerator is reduced. Compared with an incinerator with a heat insulation furnace wall structure, the coking removing cycle of the incinerator interior can be extended to 6 months or longer from 4 months due to an air-cooling wall, moreover, the service life of the incinerator can be prolonged by more than 10%.
Description
technical field [0001] The invention relates to the field of household garbage incineration, and relates to an arrangement structure of an incinerator wall for household garbage incineration using a three-stage mechanical reciprocating fire grate. Background technique [0002] With the continuous expansion of cities and towns, the increment of domestic waste increases geometrically. Choosing incineration to deal with these domestic wastes has become the main way of domestic waste disposal in my country. However, as a kind of fuel, domestic waste can only be estimated through long-term test data to estimate the calorific value of waste at the design point due to the diversity and instability of its components. There are unavoidable differences in operation. Therefore, the reasonable selection and arrangement of refractory and thermal insulation materials for the furnace wall of the incinerator will have a great impact on the normal operation of the incinerator. Contents o...
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IPC IPC(8): F23G5/44
CPCF23G5/44F23G5/444F23G2203/105
Inventor 龙吉生朱晓平王春风黄洁瞿兆舟张艳平卫劲风倪鲲鹏郑勇董文芳
Owner SHANGHAI SUS ENVIRONMENT