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Stacked spiral sludge dewatering machine

A technology of sludge dehydrator and dehydrator, which is applied in water/sludge/sewage treatment, sludge treatment, dehydration/drying/thickened sludge treatment, etc. It can solve the problems of dehydration waste, increased solid content, easy clogging, etc. , to achieve the effect of reducing design and construction costs, ensuring continuous and stable operation, and increasing water-passing space

Pending Publication Date: 2018-07-03
宜兴市凯利达环保设备有限公司
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Problems solved by technology

However, it is easy to block and requires the use of high-pressure pumps. It is not suitable for dehydration of oily sludge. High-concentration sludge needs to be diluted and pumped in, resulting in waste of dehydration in the early stage. It is difficult to achieve continuous automatic operation. The added solid powder increases the amount of solids in the sludge. content, low efficiency

Method used

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  • Stacked spiral sludge dewatering machine
  • Stacked spiral sludge dewatering machine
  • Stacked spiral sludge dewatering machine

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Embodiment Construction

[0017] The present invention will be described in detail below in conjunction with the embodiments. The description in this part is only exemplary and explanatory, and should not have any limiting effect on the protection scope of the present invention.

[0018] Such as figure 1 , 2 As shown in and 3, a screw stack sludge dehydrator includes a screw stack main body 1 which is inclined, and the screw stack body 1 includes a screw propeller 11 and a filter cartridge, and the screw propeller 11 is arranged in the filter cartridge; The screw pitch of the propeller 11 decreases along the propulsion direction; the filter cartridge is composed of a fixed ring 12 and a moving ring 13 stacked.

[0019] The inclined propeller 11 is adopted, especially the position of the inlet end connected to the mud inlet pipe 2 is relatively low, and the inclination angle is 15°-30°; the sludge can be dewatered to the greatest extent, and has a preliminary separation effect; The pitch of the shaft ...

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Abstract

The invention discloses a stacked spiral sludge dewatering machine. The stacked spiral sludge dewatering machine comprises a stacked spiral main body which is arranged in an inclined way, wherein thestacked spiral main body comprises a spiral propeller and a filter cylinder, and the spiral propeller is arranged in the filter cylinder; the screw pitch of an axial blade along an advancing directionof the spiral propeller is reduced; and the filter cylinder is composed of fixed rings and floating rings in a stacked manner. The stacked spiral sludge dewatering machine disclosed by the inventionhas the advantages that the fixed ring and the floating ring are mutually stacked, and a spiral shaft runs through a cylindrical filtering structure formed by the fixed rings and the floating rings; the spiral shaft pushes the floating ring to do motion while sludge is conveyed, has a function of automatically cleaning a filtering seam and prevents an annular piece from being blocked, thereby guaranteeing that the dewatering machine continuously and stably operates; and continuous operation can be carried out, so that design and construction cost in early stage is greatly reduced.

Description

technical field [0001] The invention relates to the technical field of sludge dewatering equipment, in particular to a screw stack sludge dewatering machine. Background technique [0002] Sludge is a solid sediment produced in the process of water and sewage treatment. It has a high water content, which can be as high as more than 99%. It also contains a large amount of nutrients such as nitrogen, phosphorus, and potassium that promote the growth of plants and crops. Treatment can achieve the purpose of stabilization, harmlessness and resource utilization. [0003] However, due to the high content of organic matter, it is easy to rot and smell, and the particles are finer, the specific gravity is smaller, and it is in a colloidal liquid state. It is a thick substance between liquid and solid, which can be transported by pump, but it is difficult to separate solid and liquid by sedimentation. In addition, sludge is used as a composting raw material, and the moisture content...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/12
CPCC02F11/121
Inventor 宋庭树杨玉云
Owner 宜兴市凯利达环保设备有限公司
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