Rotating shaft having reverse oblique interleaving mutual cleaning-type rotating discs for sludge drying machine

A sludge drying and mutual cleaning technology, which is applied in the direction of dehydration/drying/thickened sludge treatment, can solve the problems of affecting the drying rate and difficult leaf stripping, so as to improve the processing capacity, speed up the evaporation speed, and improve the heat conduction The effect of the coefficient

Active Publication Date: 2012-07-25
ZHEJIANG UNIV
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  • Summary
  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

The thickness of the sludge layer adhering to the surface of the blade is equal to the distance between the blades, and it is difficult to peel off from the blade, thus affecting the drying rate

Method used

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  • Rotating shaft having reverse oblique interleaving mutual cleaning-type rotating discs for sludge drying machine
  • Rotating shaft having reverse oblique interleaving mutual cleaning-type rotating discs for sludge drying machine
  • Rotating shaft having reverse oblique interleaving mutual cleaning-type rotating discs for sludge drying machine

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Embodiment Construction

[0029] Referring to the accompanying drawings, the present invention will be described in detail in conjunction with the embodiments.

[0030] This embodiment provides a rotating shaft with reverse inclined staggered mutual cleaning turntables for sludge dryer, its structure is as follows figure 1 shown. It includes: a cylindrical rotating shaft 1 and several equidistantly distributed reversely inclined turntables 2 installed on the rotating shaft 1; The thermal medium inlet 3 and the thermal medium outlet 4 can be installed at both ends respectively, or the pipe-in-pipe form can be adopted, and the thermal medium inlet and outlet can be set at the same end; the reverse inclined turntable 2 adopts a disc-shaped hollow design, The connection with the hollow shaft 1 is internally communicated, and the thermal medium can flow freely inside the hollow shaft 1 and the turntable 2; the turntable 2 is inclined to the vertical section of the hollow shaft 1, and the inclination direct...

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Abstract

The invention relates to sludge treating equipment, and aims to provide a rotating shaft having reverse oblique interleaving mutual cleaning-type rotating discs for a sludge drying machine. The main body of the rotating shaft is hollow cylindrical, several hollow rotating discs are equidistantly distributed on the rotating shaft, the inner portion of the rotating disc and the inner portion of therotating shaft are communicated with each other, several blades are arranged on the circumference of the rotating disc; each rotating disc is obliquely installed and forms the same included angle with the section which is perpendicular to the hollow rotating shaft, the oblique direction of adjacent rotating discs on the same hollow rotating shaft are opposite. By continuous change of relative space and distance of the inverse oblique rotating disc space, the sludge on the surface is made to rubbed and sheared to achieve mutual cleaning of the rotating disc in the sludge drying process, the problem that sludge sticks to the wall is solved, thereby improving thermal conductivity of sludge layer, increasing comprehensive heat exchange efficiency of drying machine, accelerating the evaporation velocity of water content in the sludge, and increasing the processing capability of the sludge drying machine.

Description

technical field [0001] The invention relates to sludge treatment equipment, in particular to a rotating shaft for a sludge drying machine with reversely inclined and interlaced mutual cleaning turntables. Background technique [0002] Municipal and industrial sewage treatment plants will produce a large amount of excess sludge. The excess sludge has the characteristics of high moisture content, large volume, and high quality. If it is not properly treated, it will bring great harm to the environment. The moisture content of the remaining sludge after dehydration is still as high as 80%, and the volume and quality are still relatively large, which is not conducive to subsequent treatment and disposal. Regardless of the final disposal method of sludge, it is very important to reduce the moisture content of sludge. The method of mechanical dehydration can only remove the free water in the sludge. If the moisture content of the sludge needs to be further reduced, a sludge dryer...

Claims

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Application Information

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IPC IPC(8): C02F11/12
Inventor 严建华王飞池涌李晓东蒋旭光李博马增益金余其黄群星陆胜勇倪明江岑可法
Owner ZHEJIANG UNIV
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