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Easy Maintenance Volute Screw Press Dehydrator for Petrochemica Sludge Treatment
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Easy Maintenance Volute Screw Press Dehydrator for Petrochemica Sludge Treatment

BOEEP volute screw press dehydrator is easy for maintenance and often used in petrochemical sludge treatment.
  • MYDL403
  • MYDL

Product Introduction

BOEEP volute screw press dehydrator uses the screw extrusion priciple to reache the goal of dewatering sludge by the powerful extrusion pressure of changing the screw diameter and distance along with the tiny spacing between moveable and fixed annular plates, which is a new type of solide-liquid separation device and has taken place of the traditional filter clothes and centrifugal filtration method for its distinctive filter model.

workshop of volute screw press dehydrator

Composition & Working Principle

BOEEP volute screw press dehydrator is composed of driving device, mixing system, screw body, filtrate receiver and frame. Fixed ring, moveable ring and the screw shaft which runs through the main body constitute the main body of volute screw press dehydrator. The former part do the  concentration work and the latter part assumes the task of dehydration. It is a integrated machine which can thicken and dewater sludge in one chamber.

structure of volute screw press dehydrator

When the dewatering machine operates, sludge will be transported to the mixing tank by sludge feed pump, at the same time, the solid polymer has been added to the mixing tank quantitatively by the polymer feed pump. Mixing motor drives the whole mixing system to make the sludge and polymer fully mixed and then flocs will be produced. When the liquid level arrives at the superior level of the liquid level sensor, the liquid level sensor gets the signal to make the motor of screw body operates, then begins to press the sludge which has flows into the screw body. Sludge will be transported to the outlet step by step by the effect of screw shaft; filtrate will flow out by the space of fixed annular plates and moveable annular plates.

working principle of volute screw press dehydrator


The volute screw press dehydrator can be widely used to dewater sludge of municipal administration wastewater, food, drink, slaughtering and breeding, printing, petrochemical engineering, papermaking, tannery and pharmaceutical. Innovative structure design makes it possible that the device can be used for all kinds of sludge with high or low density, especially the sludge with oil, and it can be named the invincible opponent to dewater the sludge with oil.

Application of volute screw press dehydrator


1-It can be widely used in industry and municipal wastewater treatment.

2-The device is anti-clogging.

3-Operation continuously and automatically.

4-Operation costs can be saved.

5-No secondary pollution.

6-Flexible and durable frame.

7-Saving engineering investment.

8-Improving phosphorus removal function.

Technical Parameters

Type:MYDL403 Dimension:L5010×W2585×H2100(mm)
Solid content:10000~50000mg/L Capacity:390-480kgds/h
Power:6.7kw Protection Level:IP55  F
Power Supply:380V/3/50Hz Output sludge moisture content:75-85%
Polymer feeding rate:DS  0.2~1% Flush water:240L/h
Water supply pressure:≥0.2MPa Equipment weight:5500kg
                                                     Screw body                                        Flocculated mix tank
Specification × Length:Φ400×3255(mm) Dimension:L2000×W1000×H1400(mm)
Quantity:3 Volume:About 2800L
Material:Plate: SUS304/ Screw Shaft: SUS304 Material:SS304
Motor Power:1.5×3kW Motor power:Motor power
                                                                                                                                                 Electrical Cabinet
1. Frequency converting controls dewatering body;
2. Controls polymer mixing device;
3. Realize the switch of automatic operation and manual operation.

Model Seletion

model choice of volute screw press dehydrator

Product Details

product details of volute screw press dehydrator

Object Site

object site of volute screw press dehydrator

Package Site

packing site of volute screw press dehydrator

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BOEEP has over 20 years’ professional experience as a waste water treatment equipment manufacturer and engineering service enterprise.




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