Manufacturing method of sludge anaerobic digestion reaction tank, and sludge anaerobic digestion reaction tank obtained by utilizing method

A technology of anaerobic digestion and production method, applied in biological sludge treatment and other directions, can solve the problems of difficult sealing and long construction period, and achieve the effects of improving sealing, shortening construction period and avoiding the phenomenon of running mud.

Active Publication Date: 2013-12-11
哈尔滨北方环保工程有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to solve the problems of long construction period and difficult sealing of the existing rigid material sludge anaerobic digestion tank, the present invention proposes a manufacturing method of sludge anaerobic digestion tank and the sludge anaerobic digestion reaction obtained by the method pool

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  • Manufacturing method of sludge anaerobic digestion reaction tank, and sludge anaerobic digestion reaction tank obtained by utilizing method
  • Manufacturing method of sludge anaerobic digestion reaction tank, and sludge anaerobic digestion reaction tank obtained by utilizing method

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specific Embodiment approach 3

[0031] Specific embodiment three. This embodiment is a further description of the sludge anaerobic digestion reaction tank obtained by adopting a method for making an anaerobic sludge digestion reaction tank described in specific embodiment two. It also includes a drainage channel 3, The drainage channel 3 is a drainage channel pressed on the surface of the thermal insulation floating cover 2 of the counterweight pipe, and is used to remove the accumulated water on the density polyethylene thermal insulation floating cover 2 .

[0032] The sludge anaerobic digestion reaction pool with a flexible structure of the present invention is welded on site by flexible high-density polyethylene materials. The foundation pit and embankment of the flexible structure sludge anaerobic digestion reaction tank are all earthworks, and large-scale construction machinery and equipment can be used intensively for construction operations, which can greatly improve construction efficiency. The flex...

specific Embodiment approach 4

[0035] Embodiment 4. This embodiment is a further description of the sludge anaerobic digestion reaction tank obtained by adopting a method for making an anaerobic sludge digestion reaction tank described in Embodiment 2. The ring wall foundation 5 adopts reinforced concrete material.

specific Embodiment approach 5

[0036] Embodiment 5. This embodiment is a further description of the sludge anaerobic digestion reaction tank obtained by using a method for preparing an anaerobic sludge digestion reaction tank described in Embodiment 2. The prefabricated ring wall 4 adopts reinforced concrete material.

[0037] Under the same geological conditions and volume, the construction cost of the flexible structure sludge anaerobic digestion reaction tank is more than 25% lower than that of the conventional rigid structure, and the larger the volume of the reaction tank, the lower the unit volume cost.

[0038]The shape of the flexible structure sludge anaerobic digestion reaction tank is an inverted square truncated cone. The hydraulic conditions of the anaerobic digestion reaction tank with flexible structure in this shape are better, and it is convenient to arrange special upward flow sludge stirring devices at multiple points, which can make the materials in the anaerobic digestion reaction tank ...

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Abstract

The invention particularly relates to a manufacturing method of a sludge anaerobic digestion reaction tank, and the sludge anaerobic digestion reaction tank obtained by utilizing the method, and solves the problems that an existing sludge anaerobic digestion reaction tank made of a rigid material is long in construction period and difficult to seal. The manufacturing method comprises the steps: digging up a foundation pit on the ground, overlaying dams on the outer sides of the four walls of the foundation pit, pouring a ring wall foundation at the tops of the dams, and installing a prefabricated ring wall on the ring wall foundation; paving a non-woven fabric, a plastic drainage network with uniform holes, a non-woven fabric, a high-density polyvinyl plastic film, a non-woven fabric and a high-density polyvinyl plastic film at the bottom and four walls of the foundation pit sequentially from bottom to top; and placing a high-density polyvinyl heat-insulating floating cover on a water surface, conducting welded sealing on the high-density polyvinyl heat-insulating floating cover and the high-density polyvinyl plastic film paved at the walls of the tank, and fixing on the ring wall. The sludge anaerobic digestion reaction tank is applicable to a sludge anaerobic digestion reaction.

Description

technical field [0001] The invention specifically relates to a method for manufacturing a sludge anaerobic digestion reaction tank and a sludge anaerobic digestion reaction tank obtained by the method. Background technique [0002] Sludge anaerobic digesters are often used for anaerobic digestion of excess sludge produced by urban sewage treatment plants and organic sludge such as urban feces. After anaerobic digestion, these organic sludge can be reduced and detoxification and recovery of biogas energy from it. [0003] The basic requirements of the sludge anaerobic digester should be simple structure, easy construction, good sealing performance, good hydraulic conditions, sufficient mixing and no dead zone. [0004] At present, the commonly used shapes of sludge anaerobic digesters include cylindrical digesters, oval digesters, and tortoise-shaped digesters. Its structural form usually adopts rigid material structures such as reinforced concrete structures, steel structu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/04
Inventor 战树峰杨少厚
Owner 哈尔滨北方环保工程有限公司
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