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Sludge drying burning treatment method and integrated apparatus

A sludge drying and integrated device technology, which is applied in combustion methods, dewatering/drying/concentrating sludge treatment, and oxidation treatment of sludge, etc. Comprehensive effects

Active Publication Date: 2009-11-04
ZHEJIANG HUANXING MACHINERY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The disadvantage of this process is that it must cooperate with waste incineration, which limits the promotion and use

Method used

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  • Sludge drying burning treatment method and integrated apparatus

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Embodiment Construction

[0022] The technical solutions of the present invention are further described in detail below through the examples.

[0023] Example. See figure 1 , The sludge drying and incineration integrated device in this example can process 50 tons of sludge per day. It consists of four functional parts connected.

[0024] I-Sludge pretreatment part: beater 2, screening machine 3, conveying pump 4, mud storage tank 6 (capacity 5m 3 ) are connected in turn, and are connected with the air flow nozzle of the spray drying tower 8 through the high pressure pump 7 (pressure is 1.5Mpa~2.4MPa).

[0025] II-Drying and incineration part: It is a spray drying tower 8 with a height of 40m and a diameter of 3.5m. The top part of the tower has an airflow nozzle / air compressor 5, a high temperature gas inlet, a tail gas outlet at the bottom of the tower, and a discharge outlet at the bottom of the tower. The nozzle of the drying tower is connected with the high pressure pump 7 and the air compressor...

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Abstract

The invention relates to a disposal method and integrated gear of anhydration and incineration of sewage sludge. The technical problems that the invention has solved are that the anhydration of incineration of sewage sludge are integrated, the heat utilization of incineration and the comprehensive processing effect are good. The methods of the invention are that: 1) pretreatment of wet sewage sludge; 2) access to a spray head on the top of a spray drying tower (8) of the sewage sludge for spray drying after which drying particles are obtained; exhaustion of offgases from an offgas outlet at the bottom of a tower drier (8); 3) access of the drying particles to a rotary burning kiln (10) for incineration, with the high temperature gases needed by the startup and operation of the rotary burning kiln (10) supplied by a hot-blast stove; exhaustion of the slag particles from a slag outlet; 4) access of the high temperature gases from the rotary burning kiln (10) to a second combustion chamber (9) for sufficient combustion; delivery of the high temperature gases after combustion to the spray drying tower (8).

Description

technical field [0001] The invention relates to the technical field of sludge treatment, in particular to a sludge drying and incineration treatment method and an integrated device. Can also be applied to silt. Background technique [0002] Sludge treatment technology is a major issue in the field of environmental protection, and the technical solutions to be solved have their own advantages and disadvantages. Chinese patent document CN1931752A discloses "a wet sludge incineration treatment device with particle dryer", which includes a sludge dispersing device and a particle dryer in addition to a circulating fluidized bed incinerator. It concentrates the drying and incineration of wet sludge in one unit. A large amount of water contained in the wet sludge is drawn out with the fluidizing gas of the particle dryer, or recycled as the fluidizing gas of the particle dryer or sent to the furnace for incineration, so as to reduce the heat loss of the system and do not emit odo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F11/12C02F11/06F23G7/00
CPCY02W10/40
Inventor 俞其林王凯军俞林明潘小成
Owner ZHEJIANG HUANXING MACHINERY
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