City sludge fluidized bed combustion device and method

An incineration device, a technology for municipal sludge, applied in combustion methods, oxidation treatment of sludge, incinerators, etc., can solve problems such as poor environmental performance and loss of competitiveness of multiple hearth furnaces, and achieve harmlessness and resource utilization. , to ensure complete incineration, and to enhance the effect of large-scale disturbance

Inactive Publication Date: 2006-07-12
SOUTHEAST UNIV
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Problems solved by technology

[0004] The sludge incinerators built before the 1960s were mainly multi-chamber incinerators. Due to their poor environmental performance, multi-chamber furnaces gradually lost their competitiveness
The heat generated during the combus

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  • City sludge fluidized bed combustion device and method

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Embodiment Construction

[0018] The urban sludge fluidized bed incineration device is composed of an incinerator body 2, an air distribution plate 8, an air chamber 10 and a tail flue 15. The tops of the incinerator body 2 and the tail flue 15 are connected; The bottom is provided with an air distribution plate 8, the lower part of the air distribution plate 8 is an air chamber 10, the lower part of the incinerator body 2 is a dense phase incineration area, and the upper part is a dilute phase incineration area; the explosion-proof door 1 is located on the upper part of the dilute phase incineration area. The secondary air pipe 5 is arranged in the lower part of the dilute phase incineration zone, the furnace radiation heating surface 3 and the quartz sand adding device 4 are set in the middle part of the dilute phase incineration zone; multiple sets of cooling water / wet sludge spray guns 6 are arranged in the upper part of the dense phase incineration zone, The screw feeder 7 is located in the middle ...

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Abstract

Urban sludge fluid bed burning devices and its method relates to urban sludge burning disposal and excess heat-recovering method, belonging to volume reduction, innocence, and resources handling field. Said burning equipment is made up of incinerator body (2), wind-distributing plate (8), wind room (10) and tail end chimney flue (15), the top of incinerator body (2) and tail-end chimney flue (15) are connected together; wind-distributing plate (8) whose under-part is wind room (10) is fixed at the bottom of incinerator body (2) with mass-flow burning area at its bottom and dilute phase area on its top; dry sludge after drying is added to incinerator through worm distributor by grading air supply technique; cooling medium of wind-distributing plate adopts organic heat carrier. Smoke gas flows across tail-end convection heating surface and air heater after entering tail-end chimney flue from dilute phase, being introduced to tail gas handling system after cooling to below 200 Deg C to remove dust, wash, and released to air through exhauster and chimney finally.

Description

technical field [0001] The invention relates to an incineration disposal and waste heat recovery method of urban sludge, in particular to an urban sludge fluidized bed incineration device and method using an organic heat carrier as a waste heat recovery medium. It belongs to the field of reducing, harmless and resourceful disposal of urban sludge. Background technique [0002] Municipal sludge refers to the solid and semi-solid waste generated during the water treatment process of urban domestic sewage and industrial sewage, which is mainly composed of solid residue and water. Municipal sludge generally contains a large amount of organic matter, rich nutrients such as nitrogen and phosphorus, heavy metals, pathogenic bacteria and pathogenic bacteria, etc., and is often accompanied by malodorous gases. If it is discharged without treatment, it will cause serious secondary pollution to the environment. . With the rapid development of the global economy, the increasing popula...

Claims

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Application Information

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IPC IPC(8): C02F11/06F23G5/30
CPCY02W10/40
Inventor 陈晓平赵长遂吴新段钰锋
Owner SOUTHEAST UNIV
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