Double-blade tilted self-cleaning sludge vacuum continuous drying machine
A self-cleaning, drying machine technology, applied in the direction of dehydration/drying/concentrated sludge treatment, etc., can solve the problems of unsuitable adhesive sludge, high labor intensity, low production efficiency, etc., and solve the problem of sludge sticking to the wall , Reduce labor intensity and energy consumption, and save energy
Inactive Publication Date: 2010-10-27
ZHEJIANG UNIV
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Problems solved by technology
[0004] The existing sludge vacuum drying generally adopts vacuum intermittent operation, which has high labor intensity, low production efficiency, and extremely inconvenient operation, which restricts the sludge treatment capacity and operating environment.
In addition, the disadvantage of ordinary sludge drying methods, especially indirect drying methods, is that the sludge is easy to stick to the wall, and it is not suitable for sludge with high adhesion.
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[0021] Referring to the accompanying drawings, the present invention will be described in detail below in conjunction with embodiments.
[0022] This embodiment provides a double-leaf oblique self-cleaning sludge vacuum continuous dryer, its structure is as follows figure 1 shown.
[0023] A hollow thermal shaft 11 connected to the transmission mechanism is installed inside the double-leaf oblique self-cleaning sludge vacuum continuous dryer. Several groups of straight strip-shaped paddles 3 are arranged on the hollow thermal shaft 11; the two ends of the hollow thermal shaft 11 Respectively connect the heat carrier inlet 7 and the heat carrier outlet 13; the straight bar-shaped paddles 3 are vertically installed on the hollow thermal shaft 11, and each group of paddles is distributed at 60 degrees ( Figure 4 ), which can improve the stirring effect of the material; the angle between the cross section of the blade and the center line of the thermal axis is 45 degrees ( Fig...
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The invention relates to a facility for harmlessly and resourcefully treating solid waste, and aims to provide a double-blade tilted self-cleaning sludge vacuum continuous drying machine. The drying machine comprises a cylindrical shell, wherein a hollow hot box connected with a transmission mechanism is arranged in the shell; the hollow hot box is provided with a plurality of groups of blades, and the blades are distributed in a double blade tilted mode; and a self-cleaning doctor bar is arranged between every two goups of the blades, both ends of each self-cleaning doctor bar are fixed on the inner wall of the shell of the drying machine, and the middle part is in an arch structure corresponding to the outer diameter of the hollow hot box and does not mutually contact with the hollow hot box. The invention can realize continuous drying in vacuum, thereby greatly reducing the labor intensity and energy consumption; and the self-cleaning doctor bars are utilized to solve the problem that sludge adheres to the wall, and simultaneously dry and granulate the sludge in one step. A low temperature heat source with 60-90 DEG C can be utilized to quickly dry the sludge, thereby greatly saving the energy resources; and the low temperature vacuum drying condition can greatly reduce the emission of toxic, harmless and malodorous gases in the sludge drying process.
Description
technical field [0001] The present invention relates to a kind of solid waste harmless recycling treatment equipment, more specifically, the present invention relates to a double-leaf oblique self-cleaning vacuum continuous dryer for sludge. Background technique [0002] With the acceleration of my country's urbanization process and the strengthening of urban infrastructure construction, the rate of urban sewage treatment has gradually increased, resulting in a large amount of excess sludge. If these sludges cannot be treated in a timely, effective and stable manner, it will bring great hidden dangers to the safety of our regional environment and people's lives. In addition, industrial processes such as papermaking, chemical industry, tanning, printing and dyeing, and dredging of rivers and lakes will also produce a large amount of sludge. The harmless treatment of sludge has become a major environmental protection problem that must be solved in the process of urban scienti...
Claims
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IPC IPC(8): C02F11/12
Inventor 严建华王飞池涌李晓东蒋旭光陆胜勇黄群星马增益金余其倪明江岑可法
Owner ZHEJIANG UNIV