Sludge pyrohydrolysis device and method

A technology of thermal hydrolysis and sludge, which is applied in the direction of pyrolysis treatment of sludge, etc., can solve the problems of short steam flow, poor thermal conductivity, and large heat capacity of sludge, so as to improve treatment efficiency, shorten heating time, and reduce heat loss Effect

Active Publication Date: 2015-09-09
BEIJING JIELV ENVIRONMENTAL TECH CO LTD
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Problems solved by technology

[0003] In the engineering application of sludge thermal hydrolysis, due to the large heat capacity of sludge, no gaps, very poor fluidity, and poor thermal conductivity, short steam flow is prone to occur during the sludge heating process, resulting in sludge in the thermal hydrolysis tank Uneven heating or sludge is difficult to heat, especially in the case of large-volume thermal hydrolysis tanks, which will lead to problems such as too long heating time of sludge thermal hydrolysis, excessive energy consumption, etc., seriously affecting sludge treatment efficiency

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  • Sludge pyrohydrolysis device and method

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Embodiment Construction

[0012] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0013] Such as figure 1 As shown, the present invention proposes a sludge thermal hydrolysis device, which includes a tank body 1, a feed inlet is arranged on the top of the tank body 1, and a top cover 2 is sealedly connected to the feed inlet, and a top cover 2 is sealed on the tank body 1. A discharge port is arranged at the bottom of the bottom, and a discharge valve 3 is arranged on the discharge port. A plurality of steam pipes 4 are fastened at equal intervals on the side wall of the tank body 1, and the inlet end of each steam pipe 4 is located outside the tank body 1 and is connected to a steam source (not shown in the figure) through a valve 5 . Each steam pipe 4 penetrates the side wall of the tank body 1 and then extends downward along the inner wall to the bottom of the tank body 1. The sludge is heated by the alternate air intake metho...

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Abstract

The invention relates to a sludge pyrohydrolysis device and method. The device comprises a tank body, wherein a material inlet is formed in the top of the tank body; a head cover is hermetically connected onto the material inlet; a material outlet is formed in the bottom of the tank body; a material unloading valve is arranged on the material outlet; a plurality of steam pipes are fixedly connected onto the side wall of the tank body with equal intervals; an inlet end of each steam pipe is positioned at the outer part of the tank body, and connected with steam source through a valve; after penetrating the side wall of the tank body, all the steam pipes extend downwards along the inner wall to the bottom of the tank body; an exhaust pipe is fixedly connected to the upper part of the tank body; a decompression valve is arranged on the exhaust pipe.

Description

technical field [0001] The invention relates to a sludge thermal hydrolysis device and method, belonging to the technical field of sludge treatment. Background technique [0002] In the field of municipal sludge treatment, thermal hydrolysis process, as a means of sludge pretreatment, is gradually being recognized by the industry. Sludge thermal hydrolysis can improve the fluid properties of sludge, which is convenient for transportation. Moreover, thermal hydrolysis can quickly realize the harmlessness of sludge, cell walls are broken, and intracellular bound water and organic matter are released. Dehydration treatment provides favorable conditions, and finally realizes the stabilization and reduction of sludge, which can generate biogas and realize resource utilization. [0003] In the engineering application of sludge thermal hydrolysis, due to the large heat capacity of sludge, no gaps, very poor fluidity, and poor thermal conductivity, short steam flow is prone to occu...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/10
Inventor 赵凤秋张锋景有海杨青原李艳杰董健
Owner BEIJING JIELV ENVIRONMENTAL TECH CO LTD
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