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Sludge powdering method and special dewatering apparatus thereof

A treatment method and powdering technology, which can be used in sludge treatment, water/sludge/sewage treatment, dehydration/drying/concentrated sludge treatment, etc., and can solve problems such as large energy consumption, secondary pollution, and large space. , to achieve the effect of reducing cost and high dehydration rate

Inactive Publication Date: 2003-06-18
吴永诚
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the existing dehydration methods and equipment cannot obtain sludge with a high dehydration rate, and need to go through a natural drying process
In the natural drying process, a large space is required, and it is easy to cause secondary pollution; the drying process requires a large energy consumption

Method used

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  • Sludge powdering method and special dewatering apparatus thereof
  • Sludge powdering method and special dewatering apparatus thereof
  • Sludge powdering method and special dewatering apparatus thereof

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Embodiment Construction

[0027] The present invention is described in further detail below in conjunction with accompanying drawing:

[0028] refer to figure 1 A dehydration device 24 is arranged symmetrically in the middle of a rotatable continuous circulation mechanism turntable 1, the turntable is mounted on the central axis 22 of the dehydration frame, and an upper cover 7 and a top press station are respectively provided above and below the turntable. Pressure oil cylinder 26, and the reset oil cylinder 21 of reset station.

[0029] Referring to the continuous circulation mechanism shown in Figure 2 is a turntable driven by a motor. Corresponding to four stations on the turntable, four spaces are provided, and four dehydrating devices 24 can be installed in these four spaces. The four stations are made up of action actuators that are located above and below the turntable and are installed on the dehydration frame 23 and the dehydration machine base 25 respectively.

[0030] At the position 2 o...

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Abstract

A powdering process for treating sludge includes such steps as filter, stirring, high-pressure (or vacuum) dewatering and grinding. A special dewatering machine is a continuous circulating mechanism, which is composed of multiple upper working positions and lower dewatering units whose number is equal to the number of said upper working positions. Its advantages are high dewatering effect and low cost.

Description

[0001] (1) Field [0002] The invention relates to the technical field of sewage sludge treatment, in particular to a sewage sludge powder treatment method and a special dehydrator. (2) Background technology [0003] At present, the treatment technologies for sewage sludge mainly include incineration, landfill, biological reduction, composting, and sintering building materials. [0004] In the 1980s, the United Kingdom, the Netherlands, France, Sweden and Australia began to use sludge with high combustion value as the main raw material to make efficient and clean fuels. The sludge treatment plant in Saarland, Germany uses an automatic disc dryer to dry the sludge with steam at 200°C from a power plant, so that the sludge loses 90% of its moisture, and after drying, it is made into granules, and then supplemented with auxiliary materials as needed , made into mixed fuel, fertilizer or construction material. In Japan, silt is used to produce high-grade building materials by si...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/00C02F11/12
Inventor 吴永诚
Owner 吴永诚
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