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A closed treatment process and equipment for organic sludge

A closed treatment, organic matter technology, used in dewatering/drying/concentrating sludge treatment, grain treatment, lighting and heating equipment, etc., can solve the problems of large heat loss, non-circulating operation, high energy consumption, and achieve production area occupation. Small area, energy saving, compact and reasonable process flow

Active Publication Date: 2021-02-12
湖南守望环保科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The advantage of this method is that it is fast and decomposes thoroughly, but its disadvantage is that it consumes a lot of energy. The water content of the sludge exceeds 60%. A large amount of heat energy is used to heat and vaporize water. The loss of heat energy is large, and it cannot be operated in a cycle. It must be controlled according to the furnace capacity. The processing capacity, the exhaust gas generated by combustion cannot be directly absorbed, and an additional exhaust gas treatment system is required

Method used

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  • A closed treatment process and equipment for organic sludge

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Effect test

Embodiment 1

[0039] The closed treatment process of organic sludge of the present invention comprises the following steps:

[0040] (1) Crush the sludge to a particle size below 5mm, and enter the drying pipe from the feeder;

[0041] (2) The sludge is subjected to the direct heat transfer of 600~800°C high-temperature combustion gas in the drying pipe and the indirect heat transfer of the inner and outer pipe walls. At the same time, the negative pressure of -30~-5kpa in the drying pipe is controlled to make the moisture in the sludge Evaporate at about 75~95℃, and after 20~30 minutes, the water in the sludge is completely dry;

[0042] (3) The dried sludge enters the combustion chamber. The combustion chamber is a negative pressure vertical furnace with electric and gas heating as the auxiliary heat source. The combustion chamber maintains a temperature of 850~880°C. The sludge enters the combustion section from the outlet end of the inner tube of the drying tube. Fully contact with the...

Embodiment 2

[0048] The closed treatment process of organic sludge of the present invention comprises the following steps:

[0049] (1) Crush the sludge to a particle size below 5mm, and enter the drying pipe from the feeder;

[0050] (2) The sludge is subjected to the direct heat transfer of 650~750°C high-temperature combustion gas in the drying pipe and the indirect heat transfer of the inner and outer pipe walls. Evaporate at about 90~95℃, and after 20~30 minutes, the water in the sludge is completely dry;

[0051] (3) The dried sludge enters the combustion chamber. The combustion chamber is a negative pressure vertical furnace, with electric and gas heating as the auxiliary heat source. The combustion chamber maintains a temperature of 860~870°C. The sludge enters the combustion section from the outlet end of the inner tube of the drying tube. Fully contact with the air and burn, the residence time is not less than 20 seconds, and completely burn the organic matter in the sludge. Aft...

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Abstract

The invention discloses a sealing treatment process and equipment for organic silt. The equipment comprises a crusher, a drying tube, a condensing tube, a combustion chamber, a cooling room and an absorbing box, wherein the outlet of the crusher is connected to the drying tube; materials treated by the crusher are conveyed by a spiral feeding rod; the condensing tube is arranged outside the dryingtube; the outlet of the condensing tube is connected to the absorbing box; pressure of the condensing tube can be adjusted by liquid surface height of absorbing liquid in the absorbing box; the outlet end of the drying tube is connected to the combustion chamber through a feeder; the feeder can prevent heating air in the combustion chamber from entering the drying tube though a discharge hole; and the cooling room is arranged on the lower part of the combustion chamber. The process disclosed by the invention is used for performing crushing, water drying, organic substance combusting and the like under special conditions in a mated device. The process disclosed by the invention can realize that treated sludge is completely free of water and organic substances, and the volume and the weightare reduced to be 1 / 4 to 1 / 6 of the original volume and the original weight, so that reduction and harmless treatment of sludge is completely realized, and further resource utilization of the sludgeis convenient.

Description

technical field [0001] The invention relates to sludge treatment technology, in particular to a closed treatment process and equipment for organic sludge. Background technique [0002] Environmental issues have received global attention. China's environmental requirements and standards are increasing day by day. Nowadays, Chinese enterprises, especially private enterprises, have increasingly strict environmental protection requirements in the production process. A large number of enterprises that fail to meet environmental protection standards are required to suspend production or even close down. The environmental protection industry is a sunrise industry in line with the general direction of national development. However, different from other industries, the environmental protection industry has serious technical barriers, high research and development costs, and high requirements for technical personnel. The market urgently needs equipment and enterprises that can solve ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F26B17/20F26B23/02F26B25/04B02C4/02C02F11/13
CPCB02C4/02C02F11/13F26B17/20F26B23/02F26B25/04
Inventor 曹宇傅勇坚周伟
Owner 湖南守望环保科技有限公司
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