Dehydrator

Abstract

The present invention relates to a dehydrator dehydrating various dehydrated objects containing water and solid bodies. By means of a rotating screw in a driving portion, the dehydrator performs driving inside a cylindrical sieve equipped with an inlet and a discharge outlet such that the dehydrated objects are dehydrated by extrusion. The dehydrator may function various advantages that the discharge outlet is equipped with pressurization chamber with a discharge opening and a pressure regulating unit communicated with the discharge opening, dehydrating pressure can be regulated by simple operation, in another aspect, a push auxiliary unit is arranged on the screw so as to enhance a pressing and pushing capability, a rotary impeller is provided so as to prevent the jamming of the discharge outlet and increase discharging pressure, and the dehydrator is used as a pressure feed pump for pressing and feeding the dehydrated objects .

Description

[0001] The present invention claims the priority of Korean Patent Application No. 10-2013-0013869 (filed on February 2, 2013) and 10-2013-0028604 (filed on March 18, 2013), which are cited here Its entire contents are provided by reference. technical field [0002] The present invention relates to a dehydrator that squeezes and dehydrates dehydrated materials such as raw materials containing moisture, products in process, food, food waste, and sludge generated in sewage treatment plants, and separates them into dehydrated products with low moisture content and dehydrated filtrate. Specifically, it relates to a screw type dehydrator that squeezes and dehydrates a material to be dehydrated by a screw rotating inside a cylindrical fine sieve. Background technique [0003] Dehydration machines include centrifugal dehydration machines, belt presses, filter presses, etc. [0004] As far as the centrifugal dehydrator is concerned, due to its compact structure, small footprint, and...

AI Technical Summary

Problems solved by technology

[0011] In the screw type dehydrator described in the prior art, it is necessary to uniformly pressurize the ring-shaped pressurizing plate by rotating a plurality of pressurizing shafts supporting the pressurizing plate. Therefore, it is difficult to uniformly adjust and Maintain the discharge pressure of the entire discharge port

As described above, the adjustment of the pressurizing force by rotating the plurality of shafts is cumbersome, and it is difficult to respond quickly when the discharge pressure needs to be changed.

[0012] In addition, the dehydrated matter falls through the discharge port on the lower side formed at the lower part of the discharge cylinder, so there are difficulties in that it is necessary to install a conveyor belt at the lower part of the dehydrator or to collect and transport the dehydrated matter dropped on the bottom surface by manpower.

[0013] In addition, in the case of conventional screw dehydrators, sliding occurs between the object to be dehydrated and the screw, so the extrusion and pushing capabilities of the screw are insufficient, the dehydration efficiency is low, and the screen is often clogged and washed with water, resulting in waste water There is a large amount of generation, the operation rate is also reduced, and the pressure energy for discharging the dehydrated material cannot be used for the transfer, molding, crushing, etc. of the dehydrated material, and it is wasted. Therefore, it is necessary to improve this.

[0014] On the other hand, the conventional screw dehydrator has a structure in which the pressure energy for discharging the dehydrated product cannot be used for the transfer and molding of the dehydrated product, especially, it cannot be used for additional dehydration to improve the dehydration efficiency, and is wasted. , so this needs to be improved

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