Plant Engineering Division

SX type Dehydrator (Screw Press type Dehydrators)

SX type Dehydrator (Screw Press type Dehydrators)

Structure and Flow

Dehydrator structure of SX type

Products Introduction

Hard to clog, gains high filtration speed

The cylindrical section (barrel) of the dehydrator that contains the screw press is made up of wedge wire groups with a wedge profile. Since the wedge wire forms a fan-like space that spreads outward while maintaining its ultrafine slits, it is hard to clog and ensures a high percentage of open slits. The sludge is therefore filtered optimally at a high filtration speed, or in other words, the dehydrator has gained both a large treatment capacity and high collection rate.

To obtain low water content of the cake

Dehydrator “SX type” has a dehydrator ring installed at the exit of the pressure section. The sludge is sent along by the screw vanes and these dehydration rings work to slow down the forward movement of the cake that fills the space between the vanes. This results in an increase in pressure inside the barrel. For this reason, the internal pressure can be further increased by increasing the number of these rings, making it possible to efficiently lower the water content of the cake without treatment capacity dropping.

Features

  1. 1.Wide fields of application
    1. Excess activated sludge
      (Sewage/industrial wastewater/human waste)
    2. Pressure floated sludge
      (industrial wastewater)
    3. Coagulated sludge
      (industrial wastewater)
    4. Oil sludge
      (industrial wastewater)
  1. 2.High filtration speed, so treatment capacity increases
    Treatment capacity increases 2 to 3 times over previous types by using wedge wire.
  2. 3.Small washing water volume
  3. 4.Excellent maintainability
    Has few parts, requires no consumables.

Main Body Specifications

(Treatment Capacity in case of Pressure Floatation sludge)
Type SX-1 SX-2 SX-3 SX-4 SX-5 SX-6
Treatment Capacity
(kg・DS/h)
10~15 20~30 40~60 60~90 100~150 160~240
Motor
(kW)
0.75 1.50 1.50 2.20 2.20 3.70
Outer Dimension
(mm)
Length 2,450 3,460 4,410 5,190 5,310 6,335
Width 1,100 1,285 1,500 1,700 1,880 2,080
Height 1,225 1,340 1,580 1,700 1,840 2,190
Weight
(kg)
1,100 1,500 2,500 3,700 5,000 7,000

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