Special type sludge dewatering extrusion granulator

A technology of sludge dehydration and granulation machine, which is applied in the direction of raw material extrusion granulation, dehydration/drying/thickened sludge treatment, presses, etc., which can solve the problems of high equipment investment and operating costs, and large floor space. Achieve energy saving, large processing capacity, and even water distribution

Inactive Publication Date: 2008-02-13
朱清海
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  • Abstract
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  • Claims
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Problems solved by technology

The currently used drying equipment generally uses a rotary drying cylinder, but it occupies a large area, and the equipment investment and operating costs are relatively high.

Method used

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  • Special type sludge dewatering extrusion granulator

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Embodiment Construction

[0016] The special sludge dewatering extrusion granulator is to feed the sludge to the conical single screw and barrel (2) through the sludge feeder (4) for dehydration. The moisture content of the sludge is controlled at a moisture content of 35%. -40%, through (2) connected granulation membrane head (11) and eccentric granulator (1) extrusion cutting granulation is sent out from the discharge port (10), and the moisture detached from the sludge is discharged from the drain ( 8), Negative pressure vacuum (7), discharge of sewage outlet (9), sludge dehydration and granulation in heater (3) specific temperature control, stable feeding in gear box (5), DC motor (6 ) is completed under the stable control, providing a special environment for sludge dewatering.

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Abstract

The present invention provides a novel technical device of sludge dehydration and belongs to the solid waste disposal field. The device is applicable to the dehydration and granulation requirements of sludge with various components. A single screw and reverse screw threads and a peculiar structure arrangement are adopted to make the water of the sludge (a moisture content of which is about 80 percent) is dehydrated as a form of liquid, and make the sludge form a sludge dehydration and granulation process, the moisture content of which is 30 percent to 35 percent. A special sludge dehydration and granulation machine fills a blank that the sludge dehydration has to be dehydrated as the form of water vapor, which greatly reduces the energy cost of the sludge dehydration. With small size, low operation cost, high production efficiency, high mechanization degree and wide scope of application, the present invention is a novel and most energy-saving and cleanly-produced sludge dehydration device.

Description

technical field [0001] The invention belongs to solid waste treatment equipment and is suitable for the needs of sludge dehydration and granulation with different components. Background technique [0002] Sludge is the sediment formed by the migration, transformation and precipitation of substances in water during the purification treatment of domestic sewage and industrial wastewater, or the sediment formed by the deposition of suspended solids in the water body. Therefore, sludge is a solid waste formed with the purification of various types of water, or precisely a semi-solid waste. [0003] Sludge is characterized by high water content (moisture content about 80%), large volume, high content of organic matter, containing a variety of metal elements, fine particles, poor air permeability, and a large number of active microorganisms. Due to the large amount of sludge and its high concentration of pollutants, if it is not properly treated, it will cause serious secondary p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J2/20B30B9/14C02F11/12
Inventor 齐继红杜景文朱清海
Owner 朱清海
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