A layout structure of incinerator walls suitable for domestic waste incineration power plants
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: 2017-04-19
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 an incinerator grate section 24 .
[0024] like figure 1 As shown, it is a schematic diagram of the layout structure of the furnace wall of a domestic waste incinerator with an adiabatic furnace wall structure. The furnace wall of the incinerator using the three-stage mechanical reciprocating grate furnace is divided into different areas according to the function, which are divided into: the membrane water wall (front and rear arch) area 1, the lower side wall area of the feeding hopper 2, the pusher The lower side wall area 3, the upper side wall area of the drying grate 4, the upper part of the other two grate sections (burning 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 lower area of ...
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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 domestic waste incineration, and relates to an arrangement structure of a furnace wall of an incinerator which adopts a three-stage mechanical reciprocating grate for domestic waste incineration. Background technique [0002] With the continuous expansion of cities and towns, the increase in domestic waste has increased exponentially. Choosing incineration to treat these domestic wastes has become the main method of urban domestic waste disposal in my country. However, as a kind of fuel, due to the diversification and instability of its components, the calorific value of the waste at the design point can only be estimated through years of testing data as the basis for theoretical calculations, which must be consistent with the actual situation. There are unavoidable differences in operation. Therefore, the reasonable selection and arrangement of refractory and thermal insulation materials for the incinerator wall...
Claims
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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