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Honeycombed section biological fluidized composite reactor

A biological fluidization and reactor technology, applied in the direction of sustainable biological treatment, aerobic process treatment, etc., can solve the problems of increased construction cost and construction difficulty, insufficient structural strength, impact on surrounding landscape, etc., to improve oxygen transfer efficiency, Effects of reducing energy consumption and controlling biofilm thickness

Inactive Publication Date: 2003-12-10
TSINGHUA UNIV
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Problems solved by technology

[0004] Due to the tower structure, the main problem of the internal circulation three-phase fluidized bed is the insufficient structural strength when the device is enlarged
For example, for the structure of the inner and outer cylinders, when the diameter exceeds a certain limit (such as exceeding 4m or more), there is a problem of structural stability; Oxygen performance needs to maintain a certain height-to-diameter ratio (generally greater than 4), so that as the diameter of the fluidized bed increases, the height will increase accordingly
Therefore, it will increase the construction cost and construction difficulty, as well as increase the operating cost, and may have an impact on the surrounding landscape

Method used

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Embodiment Construction

[0010] The present invention relates to a biological fluidization composite reactor with a honeycomb cross-section. The composite biological fluidization reactor adopts a honeycomb cross-section structure. The reactor inner cylinder 2 is located at the center of the reactor outer cylinder 1, and the reactor outer cylinder 1 and A partition 3 is added in the annular gap between the reactor inner cylinders 2, and the annular gap is evenly separated by the partition 3, and the number of partitions is an even number (such as figure 1 a), figure 1 As shown in (b), there are generally 4, 6, 8, and 10; the separated adjacent annulus areas are sequentially set as upflow areas and downflow areas. The internal structure composed of the entire inner cylinder and the partition is installed at a certain distance from the bottom of the reactor to ensure the circulation of the internal gas-liquid-solid mixture; the internal structure is also at a certain height from the top of the reactor, w...

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Abstract

The biofluidized composite reactor adopts honeycomb section structure, the internal cylinder of said reactor is positioned in the centre of interior of external cylinder of said reactor, in the annular space between external cylinder and internal cylinder of the reactor even number of partion boards can be added, and the separated adjacent annular space zones are successively used as flow-lifting zone and flow-falling zone, said flow-lifting zone and flow-falling zone are limited by said honeycomb section structure, and the section area of single flow-lifting zone is reduced, so that it can better uniformly fluidize, reduce energy consumption and raise oxygen-transferring efficiency.

Description

technical field [0001] The invention belongs to the field of sewage treatment equipment and technology in environmental protection, in particular to a biological fluidization composite reactor with a honeycomb section. Background technique [0002] Aerobic biological fluidized bed is a wastewater treatment technology developed in the early 1970s. It is based on the biofilm method and has the treatment functions of the biofilm method and the activated sludge method. It absorbs the fluid state in the chemical industry. Chemical technology is an internationally recognized high-efficiency wastewater biological treatment process. [0003] Aerobic biological fluidized bed includes solid-liquid two-phase biological fluidized bed and gas, liquid and solid three-phase biological fluidized bed. From the structural form, it can be divided into traditional three-phase biological fluidized bed (ebullating bed), external circulation three-phase fluidized bed and internal circulation thre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/02
CPCY02W10/10
Inventor 施汉昌张玉魁
Owner TSINGHUA UNIV
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