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Mechanical grate type waste gasification incinerator and boiler system thereof

A technology of mechanical grate and gasifier, applied in the direction of incinerator, combustion method, combustion type, etc., can solve the problems of large supply, short ash cleaning maintenance cycle, easy ash accumulation, etc., to improve the utilization of energy efficiency, improve energy conversion efficiency, and prevent secondary pollution

Active Publication Date: 2016-03-23
CHONGQING SANFENG ENVIRONMENTAL IND GRP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, the fly ash content in the flue gas after incineration is high, the boiler ash is heavy, and the ash cleaning maintenance period is short
[0007] 2. With the increasing amount of garbage generated and piled up like mountains, the amount of garbage treatment must be effectively increased in order to meet market demand
[0010] Existing gasification incinerators, such as the following two invention patents: Multi-column segmented drive compound domestic waste incinerator (ZL200710092508.9) and two-stage waste incinerator (ZL201010268376.2) Unsolved problems: heat treatment of waste The mode is relatively backward, just drying-burning-burning, the process of solid combustion releasing heat; the thermochemical reaction in the furnace is dominated by oxidation reaction, supplemented by reduction reaction, which is easy to produce secondary pollutants; when garbage is burned in the furnace, the peroxygen coefficient Large, large amount of primary air and secondary air supply, high dust content in flue gas, great impact on heat energy recovery system and flue gas treatment system, easy to accumulate dust, large amount of flue gas, reducing heat conversion efficiency; Without a separate gasification furnace and ember furnace, waste can only be processed in batches, and large-scale continuous gasification and incineration of waste cannot be realized, and the amount of waste treated is small

Method used

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  • Mechanical grate type waste gasification incinerator and boiler system thereof
  • Mechanical grate type waste gasification incinerator and boiler system thereof
  • Mechanical grate type waste gasification incinerator and boiler system thereof

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Embodiment Construction

[0043] see Figure 1 to Figure 7 , is a preferred embodiment of the mechanical grate type garbage gasification incinerator and its boiler system.

[0044] In this embodiment, the boiler system includes a gasification furnace 103, an ember furnace 104, a boiler body 4 and its circulating air supply system. The gasification furnace 103 and the ember furnace 104 can be sealed or communicated. The hearth of the gasification furnace 103 Two independent primary air chambers 107 are respectively provided under the ember furnace 104 hearth, the front arch and the rear arch of the gasification furnace 103 are respectively provided with secondary air supply ports 115, and the gasification furnace 103 The vault of the ember furnace 104 is provided with a first flue gas outlet 112 , and the vault of the ember furnace 104 is provided with a second flue gas outlet 113 .

[0045] The boiler body 4 has a cyclone combustion chamber 3, a furnace chamber a402, a furnace chamber b403, and a furn...

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Abstract

The invention discloses a mechanical grate type waste gasification incinerator with less conversion thermal efficiency loss and higher thermal recovery efficiency and a boiler system of the waste gasification incinerator. The mechanical grate type waste gasification incinerator comprises a gasification incinerator, the boiler system and a circulating air supply system, wherein the gasification incinerator comprises a feeding bin, a gasifier and a burnout furnace, a stockpiling sealing section is arranged between the feeding bin and the gasifier, a transition slag blanking section is arranged between the gasifier and the burnout furnace, and flue gas outlets are formed in the upper ends of the gasifier and the burnout furnace respectively. The boiler system comprises a boiler body, the boiler body is provided with a cyclone combustion chamber, a furnace chamber a and a furnace chamber b which are mutually communicated, a water cooling wall is arranged in the cyclone combustion chamber, a superheater is arranged in the furnace chamber a, an evaporator is arranged in the furnace chamber b, a steam drum is arranged at the top end of the boiler body, a steam-water inlet is formed in the steam drum, the steam drum is connected with water inlets of the water cooling wall and the evaporator and used for outputting water, steam outlets of the water cooling wall and the evaporator are connected with a steam inlet of the steam drum for backflow of steam, and a saturated steam outlet of the steam drum outputs superheated steam through the superheater.

Description

technical field [0001] The invention belongs to the technical field of solid waste incineration treatment, and in particular relates to a mechanical grate type garbage gasification incinerator and a boiler system thereof. Background technique [0002] The existing waste treatment technologies mainly include incineration, sanitary landfill, composting, and waste recycling. Among the conventional waste treatment technologies, incineration has the advantages of obvious reduction effect, complete harmlessness, small land occupation, utilization of waste heat energy, and less secondary pollution, which meets the strategic requirements of my country's sustainable development. However, with the continuous improvement of environmental protection requirements at home and abroad, how to strengthen the control of secondary pollution is particularly important. Therefore, waste pyrolysis and gasification incineration technology is gradually pushed to the road of industrial application, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23G5/027F23G5/14F23G5/44F23G5/46F22G1/12
CPCY02E20/12F23G5/027F22G1/12F23G5/14F23G5/44F23G5/46F23G2201/40
Inventor 李长江严欣平肖大志周雄林顺洪丁又青徐明柏继松田野
Owner CHONGQING SANFENG ENVIRONMENTAL IND GRP
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