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High-pressure spray type dewatering device for urban sludge

A dewatering device and high-pressure spraying technology, applied in the direction of dewatering/drying/concentrating sludge treatment, etc., can solve the problems of poor dewatering effect, high equipment cost, high energy consumption, etc., to improve the dewatering rate, increase the heating area, The effect of accelerating sludge dewatering

Inactive Publication Date: 2019-10-22
NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER
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Problems solved by technology

[0006] However, the above-mentioned technical scheme still has the problems of high equipment cost, large energy consumption, and poor dehydration effect.

Method used

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  • High-pressure spray type dewatering device for urban sludge

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Embodiment Construction

[0031] The specific implementation manners of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0032] Such as figure 1 As shown, a high-pressure spray-type dehydration device for urban sludge of the present invention includes a drying tower, a sludge treatment chamber is arranged in the drying tower, and the sludge treatment chamber is connected with a sludge input mechanism and a sludge output mechanism. The drying tower is equipped with a heat pipe heating layer 2 surrounding the sludge treatment chamber, and the heating layer 2 is surrounded by an insulation layer 1, and a nano non-stick coating 3 is provided on the inner side of the sludge treatment chamber wall, and the nano non-stick coating 3 can prevent sludge adhesion.

[0033] The sludge treatment chamber is composed of the upper spray heating chamber 4 and the lower sludge return collection chamber 6, in which the spray heating chamber 4 is hemispherical, whic...

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Abstract

The invention discloses a high-pressure spray type dewatering device for urban sludge. The high-pressure spray type dewatering device for urban sludge comprises a drying tower; a sludge treatment cabin is arranged in the drying tower and is connected with a sludge inputting mechanism and a sludge outputting mechanism; the drying tower is provided with a heating layer that surrounds the sludge treatment cabin; the sludge treatment cabin is composed of an upper spray heating chamber and a lower sludge returning and gathering chamber; the spray heating chamber is in a semispherical shape; the sludge returning and gathering chamber is in the shape of a cone with its upper part being a major-diameter end; and a sludge sprayer is arranged in the sludge treatment cabin and connected with a sludgecirculation system. The high-pressure spray type dewatering device of the invention can change viscous sludge into mist shape sludge, thereby increasing a heating area and strengthening a heat exchange rate; so sludge dewatering is accelerated, and a dewatering rate is improved.

Description

technical field [0001] The invention relates to the technical field of sludge dewatering, in particular to a high-pressure spraying type dewatering device for urban sludge. Background technique [0002] Sludge is a high-moisture porous medium substance, and the moisture content of untreated sludge is as high as 95%. Especially urban sludge, because its combined moisture and free moisture are larger than ordinary dry matter, and its physical form is like micelles, with strong cohesion, so it is not easy to dehydrate, consumes a lot of energy, and emits foul smell, polluting the environment. With the increasingly severe environmental protection requirements and the accelerated pace of urbanization, urban sludge treatment has become an urgent problem to be solved, and reducing the water content of sludge is the key to sludge reduction and resource utilization (agricultural use, incineration, etc.) premise. [0003] For example, the utility model patent with the notification n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/13
CPCC02F11/13
Inventor 苏钰杰关树义赵廷林
Owner NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER
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