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Continuous sludge pyrohydrolysis system and method

A technology of thermal hydrolysis and sludge, which is applied in the direction of water/sludge/sewage treatment, sludge treatment, pyrolysis treatment of sludge, etc., which can solve the problems that are not conducive to the large-scale application of sludge thermal hydrolysis process and low treatment efficiency , Insufficient stability and other problems, to achieve the effect of improving pretreatment efficiency, high degree of automation, and reducing treatment costs

Inactive Publication Date: 2016-02-24
BEIJING JIELV ENVIRONMENTAL TECH CO LTD
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Problems solved by technology

This batch treatment method is cumbersome to operate, has insufficient stability, and low treatment efficiency, which is not conducive to the large-scale application of sludge thermal hydrolysis process.

Method used

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  • Continuous sludge pyrohydrolysis system and method

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Embodiment Construction

[0018] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0019] Such as figure 1 As shown, the continuous sludge thermal hydrolysis system provided by the present invention includes a sludge buffer tank 1, a high-pressure sludge feed pump 2, a high-pressure feed shut-off valve 3, and a sludge thermal hydrolysis system connected in sequence through a pipeline 6. The reaction device 4 and the high-pressure discharge stop valve 5 are connected to the downstream sludge post-treatment device through the pipeline 6; wherein, the sludge thermal hydrolysis reaction device 4 includes a tank body 41, a stirring device 42, Steam pipeline 43, temperature detection device 44 and pressure detection device 45; The bottom of tank body 41 or side wall bottom are provided with feed inlet 46, and the side wall top of tank body 41 is provided with discharge port 47, and feed inlet 46 and outlet The feed port 47 is respectivel...

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Abstract

The invention relates to a continuous sludge pyrohydrolysis system and method, wherein the continuous sludge pyrohydrolysis system comprises a sludge surge bunker, a high pressure sludge feed pump, a high pressure feed stop valve, a sludge pyrohydrolysis reaction device and a high pressure discharge stop valve which are sequentially connected with one another by pipelines, and the high pressure discharge stop valve is connected with a sludge after-treatment device by a pipeline; the sludge pyrohydrolysis reaction device comprises a tank body, a stirring device arranged in the tank body, a steam pipeline entering the tank body by penetrating the top of the tank body, extending along the inner wall of the tank body downward to the tank body bottom, temperature detectors which are respectively arranged at the upper part and the lower part of the side wall of the tank body, and a pressure detector arranged at the top of the tank body; a feed inlet is arranged in the bottom or the lower part of the side wall of the tank body, and an outlet is arranged in the upper part of the side wall of the tank body; the feed inlet and the outlet are respectively connected with the high pressure feed stop valve and the high pressure discharge stop valve; the inlet of the steam pipeline is provided with a steam valve.

Description

technical field [0001] The invention relates to a sludge environmental protection treatment system and method, in particular to a continuous sludge thermal hydrolysis system and method. Background technique [0002] Sludge is the product of sewage treatment, which is an extremely complex heterogeneous body composed of organic debris, bacterial cells, inorganic particles and colloids. In the field of municipal sludge treatment, thermal hydrolysis process, as a means of sludge pretreatment, is gradually being recognized by the industry. Thermal hydrolysis treatment can destroy the colloidal structure and capillary structure of the sludge, break the sludge cells, release the bound water in the cells and the water adsorbed on the cell surface into free water, improve the fluid properties of the sludge, and facilitate transportation. The sedimentation performance and dehydration performance of the sludge are greatly improved; the organic matter in the cells is released, and the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/00C02F11/10
Inventor 赵凤秋张锋景有海吕东升
Owner BEIJING JIELV ENVIRONMENTAL TECH CO LTD
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