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Solid-liquid separation mechanism capable of adjusting effluent flow rate and sludge concentration and using method thereof

A sludge concentration, solid-liquid separation technology, applied in chemical instruments and methods, water/sludge/sewage treatment, dehydration/drying/concentrated sludge treatment, etc. Reduce the motor speed and other problems to improve the dehydration efficiency, enhance the filtration effect, and increase the sludge concentration.

Inactive Publication Date: 2016-09-07
JIANGSU BOE ENVIRONMENTAL PROTECTION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the concentration of the treated sludge is too low, sufficient volumetric pressure cannot be formed inside the dewatering cylinder, and the dehydration cannot be fully squeezed, which affects the dehydration effect; and the motor speed is reduced so that the treated sludge can fully fill the dewatering cylinder to obtain sufficient The volume pressure increases the operating cost and reduces the dehydration efficiency

Method used

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  • Solid-liquid separation mechanism capable of adjusting effluent flow rate and sludge concentration and using method thereof
  • Solid-liquid separation mechanism capable of adjusting effluent flow rate and sludge concentration and using method thereof
  • Solid-liquid separation mechanism capable of adjusting effluent flow rate and sludge concentration and using method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] 1) Preparation of medicament: mix polyacrylamide with water to prepare a medicament with a mass fraction of 1‰;

[0029] 2) Feeding and dosing: the sludge to be treated is passed into the mixing flocculation tank 1 through the feeding port 101, and the above-mentioned chemical is passed into the mixing flocculation tank 1 through the dosing port 102, and the sludge and the chemical are mixed with each other;

[0030] 3) Stirring and filtering: start the motor, the drive shaft 3 drives the stirring shaft frame 4 to rotate, the stirring paddle 501 stirs the sludge and the medicine, the sludge and the medicine are fully mixed, and the moisture in the sludge is filtered by the filter assembly 8 and then enters the drain pipe 9 , the scraper 502 on the stirring shaft 5 rotates and scrapes off the residual sludge on the filter assembly 8, the filtrate in the drain pipe 9 enters the outer drainage tank 13 through the tee pipe 10, and is discharged from the water outlet 13a, and...

Embodiment 2

[0034] 1) Preparation of medicament: mix polyacrylamide with water to prepare a medicament with a mass fraction of 1‰;

[0035] 2) Feeding and dosing: the sludge to be treated is passed into the mixing flocculation tank 1 through the feeding port 101, and the above-mentioned chemical is passed into the mixing flocculation tank 1 through the dosing port 102, and the sludge and the chemical are mixed with each other;

[0036] 3) Stirring and filtering: start the motor, the drive shaft 3 drives the stirring shaft frame 4 to rotate, the stirring paddle 501 stirs the sludge and the medicine, the sludge and the medicine are fully mixed, and the moisture in the sludge is filtered by the filter assembly 8 and then enters the drain pipe 9 , the scraper 502 on the stirring shaft 5 rotates and scrapes off the residual sludge on the filter assembly 8, the filtrate in the drain pipe 9 enters the outer drainage tank 13 through the tee pipe 10, and is discharged from the water outlet 13a, and...

Embodiment 3

[0040] 1) Preparation of medicament: mix polyacrylamide with water to prepare a medicament with a mass fraction of 1‰;

[0041] 2) Feeding and dosing: the sludge to be treated is passed into the mixing flocculation tank 1 through the feeding port 101, and the above-mentioned chemical is passed into the mixing flocculation tank 1 through the dosing port 102, and the sludge and the chemical are mixed with each other;

[0042] 3) Stirring and filtering: start the motor, the drive shaft 3 drives the stirring shaft frame 4 to rotate, the stirring paddle 501 stirs the sludge and the medicine, the sludge and the medicine are fully mixed, and the moisture in the sludge is filtered by the filter assembly 8 and then enters the drain pipe 9 , the scraper 502 on the stirring shaft 5 rotates and scrapes off the residual sludge on the filter assembly 8, the filtrate in the drain pipe 9 enters the outer drainage tank 13 through the tee pipe 10, and is discharged from the water outlet 13a, and...

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Abstract

The invention discloses a solid-liquid separation mechanism capable of adjusting the effluent flow rate and the sludge concentration and a using method thereof, and belongs to the field of sludge treatment equipment. The solid-liquid separation mechanism comprises a mixing and flocculating box, the upper portion of the mixing and flocculating box is provided with a discharge port, a fixed support plate and a driving shaft are arranged in the mixing and flocculating box, the driving shaft is sleeved with a stirring shaft frame which is provided with stirring shafts and a pushing rod, the stirring shaft is provided with stirring blades and scraper plates, a water filtering assembly is arranged between the stirring shaft frame and the fixed support plate and comprises fixed rings, gaskets and floating rings, the lower portion of the water filtering assembly is connected with a drainage pipe which is connected with a three-way pipe, the two ends of a straight way of the three-way pipe are each connected with a butterfly valve, and the upper end of the straight way is in threaded connection with a flow rate adjusting pipe and is connected into an external drainage tank; a cleaning pipe is arranged in the mixing and flocculating box and provided with a plurality of water spray nozzles. According to the solid-liquid separation mechanism, the sludge concentration can be increased, and the effluent flow rate and the concentrated sludge concentration can be freely adjusted.

Description

technical field [0001] The invention belongs to the field of sludge treatment equipment, in particular to a solid-liquid separation mechanism. Background technique [0002] At present, the screw stacking sludge dewatering machine can be widely used in the following fields: 1 organic sludge produced in the process of wastewater treatment such as pig farm wastewater and food processing wastewater; 2 electroplating wastewater, printing and dyeing wastewater, wastewater containing cutting oil, paint wastewater, etc. Inorganic sludge produced during wastewater treatment; 3 liquid separated from vegetable residues, fruit peel food residues and other treatment objects; 4 primary sludge and biochemical sludge produced by municipal sewage plants. The spiral screw sludge dewatering machine uses the principle of screw extrusion, through the rotation of the screw shaft, the strong extrusion force generated by the change of the diameter and pitch of the screw shaft, the relative movement...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/12C02F11/14
CPCC02F11/12C02F11/121C02F11/14C02F2303/06
Inventor 黄志洋张晓东卞德广巩青松
Owner JIANGSU BOE ENVIRONMENTAL PROTECTION TECH
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