Sludge dewatering device and method combining screw propulsion and biomass electroosmosis

A technology of sludge dehydration and screw propulsion, which is applied in the direction of dehydration/drying/thickened sludge treatment, etc., which can solve the problems of high cost, difficulty in realization and high energy consumption of sludge treatment, so as to reduce moisture content, increase economic income, improve The effect of dehydration performance

Pending Publication Date: 2019-09-27
HENAN INST OF ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This process has high energy consumption and high sludge treatment cost, which is difficult to realize in practical application.

Method used

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  • Sludge dewatering device and method combining screw propulsion and biomass electroosmosis
  • Sludge dewatering device and method combining screw propulsion and biomass electroosmosis
  • Sludge dewatering device and method combining screw propulsion and biomass electroosmosis

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] The traditional spiral propulsion electro-osmosis sludge dewatering treatment method mainly includes the following steps:

[0060] (1) Fully stir 3200 g of sludge in a mechanical stirrer and set aside.

[0061] (2) Fill the configured sludge into the sludge dehydration chamber 3 .

[0062] (3) Close the sealing cover plate 4, turn on the DC power supply, the anode electrode plate 5 does not rotate, and the hollow worm 18 continues to rotate to push the anode electrode plate 5 to squeeze the sludge to the left.

[0063] (4) Turn the driving rod 24 after the dehydration is completed, the blade 8 on the left side of the anode electrode plate 5 cuts off the sludge, and discharges all the sludge into the mud storage bucket 31 through the screw conveying blade 28, and takes a certain amount of sludge to test its moisture content and calorific value.

Embodiment 2

[0065] The traditional spiral propulsion electroosmosis combined with biomass sludge dehydration treatment method mainly includes the following steps:

[0066] (1) Fully stir 3200 g of sludge and 6% biomass in a mechanical stirrer, and set aside.

[0067] (2) Fill the configured sludge into the sludge dehydration chamber 3 .

[0068] (3) Close the sealing cover plate 4, turn on the DC power supply, the anode electrode plate 5 does not rotate, and the hollow worm 18 continues to rotate to push the anode electrode plate 5 to squeeze the sludge to the left.

[0069] (4) Turn the driving rod 24 after the dehydration is completed, the blade 8 on the left side of the anode electrode plate 5 cuts off the sludge, and discharges all the sludge into the mud storage bucket 31 through the screw conveying blade 28, and takes a certain amount of sludge to test its moisture content and calorific value.

Embodiment 3

[0071]The method of spiral propulsion electroosmosis combined with biomass sludge dehydration treatment mainly includes the following steps:

[0072] (1) Fully stir 3200 g of sludge and 6% biomass in a mechanical stirrer, and set aside.

[0073] (2) Fill the configured sludge into the sludge dehydration chamber 3 .

[0074] (3) Close the sealing cover plate 4, turn on the DC power supply, and the first motor reducer 20 drives the anode electrode plate 5 to rotate every once in a while, and the blade 8 on the left side of the anode electrode plate 5 cuts the adjacent anode electrode plate 5. Thinized sludge, the hollow screw continuously rotates and pushes the anode electrode plate 5 to squeeze the sludge to the left.

[0075] (4) Turn the driving rod 24 after the dehydration is completed, the blade 8 on the left side of the anode electrode plate 5 cuts off the sludge, and discharges all the sludge into the mud storage bucket 31 through the screw conveying blade 28, and takes ...

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Abstract

The invention discloses a sludge dewatering device combining screw propulsion and biomass electroosmosis. The device comprises a support and a direct current power source. A cylindrical sludge dewatering room is arranged on the support. A sealing cover plate is arranged at the left side of the top of the sludge dewatering room. A negative pole flow guiding drainage assembly is arranged at the left end of the sludge dewatering room, a positive pole electrode plate is slidably connected to the interior of the sludge dewatering room, the right side face of the positive pole electrode plate is connected with a rotating drive mechanism for driving the positive pole electrode plate to rotate, the right side part of the sludge dewatering room is provided with a linear drive mechanism for driving the positive pole electrode plate to horizontally move left and right, and positive and negative poles of the direct current source are connected with the positive pole electrode plate and the negative pole drainage assembly through wires respectively. The invention further discloses a dewatering method of the sludge dewatering device combining screw propulsion and biomass electroosmosis. Electroosmosis dewatering, extrusion and sludge discharge are performed synchronously, water in sludge can be effectively removed, the calorific value of treated sludge is increased, sludge incineration and power generation are performed conveniently, and the high economic benefits are achieved.

Description

technical field [0001] The invention belongs to the technical field of sludge dewatering treatment, and in particular relates to a screw propulsion combined with biomass electroosmotic sludge dewatering device and method. Background technique [0002] Sludge is an extremely water-soluble solid substance produced by sewage treatment plants after treating wastewater. It contains a large number of toxic and harmful substances that have a negative impact on the environment, including toxic and harmful organic substances, heavy metals, pathogenic bacteria, parasite eggs, etc. . [0003] Sludge has the characteristics of large output, high moisture content, and difficult treatment. If the sludge is not disposed of or improperly disposed of, it will cause secondary pollution to the environment. The study found that the premise of safe disposal and even secondary utilization of sludge is to effectively remove the water in the sludge, thereby reducing the difficulty of subsequent di...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/15
CPCC02F11/12
Inventor 李亚林刘蕾陈高昂董浩云王尊严方珑宇李坤鹏唐一凡
Owner HENAN INST OF ENG
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