Horizontal China Decanter Centrifuge Larger Capacity Waste Water Treatment
composition:
The sludge dewatering system consists of five parts:
(1) Sludge feeding system, (2) Flocculant dosing system, 3) Thickening and dewatering system,
(4) Mud cake delivery system, (5) Electronic control device of sets of system;
Descripition:
Decanter centrifuge is one of our main products. Utilizing our technological advantages, we have developed centrifuges with varied structures to
cater for different sludge dewatering requirements.
In the field of environmental protection, we use the automatic control system that boasts high length-diameter ratio, high speed, small differential
speed. High length-diameter ratio increases the material clarification and dewatering time inside the machine; high speed generates great
centrifugal force, leading to thorough dehydration of material; small differential speed reduces spiral stirring the materials, increases the
dewatering time, therefore improves the separation in sludge thickening, dewatering and clarification, which can obtain drier solid residue and
clearer clarification liquid compared to other decanter centrifuges; in order to maintain the best dewatering effect, the operation parameters are
subject to automatical regulation with the amount and quality of sludge entering into the centrifuge, which ensures normal operation of the
machine and stable water content in the discharged sludge. If the condition of sludge entering the machine changes greatly, beyond the
regulation capacity of the machine or the machine itself fails, the machine will shut down automatically and alarm.
Feature:
Our centrifugal sludge dewatering machines can achieve sludge thickening, sludge dewatering as well as thickening and dewatering integration.
Dewatering and thickening of sludge form municipal and industrial waste water, such as : municipal sludge, paper mill sludge, starch sludge, steel
mill sludge, printing and dyeing mill sludge, water works sludge, pharmaceutical sludge, PVC sludge, sewage desulfurization sludge, grain
stillage, power plant ash sludge, dairy sludge, beer sludge, drilling mud, electroplating liquid, fermented liquid manure, oil refining sludge, soap
sludge, leather sludge, and other types of sludge.
Working Principle:
Basic principle of horizontalscroll discharge centrifuges (namely decanter centrifuges): the light liquid, heavy liquid and solid (dregs) in the mixed
liquid (suspension) have different densities and are immiscible, and any two or three phases therein are then under different centrifugal forces in
the centrifugal force field, resulting in different settling velocities, then achieving thepurpose of separation, layering or settling the
solid-phase particles in the liquid.
After entering into the high-speed turning drum,the solid-phase particles in the mixed liquid run and settle on the drum wallunder the action of
greatest centrifugal force; the light liquid settles at the innermost place of the drum under minimum centrifugal force; and the heavy liquid settles
in the middle (this phase exists in case of three-phase separation or does not exists in case of two phases); same as the drum’s turning direction,
a screw feeder also turns at a high speed, and a constant speed difference is generated by the differential mechanism; the solid-phase particles
settled on the drum wall are then fed by the screw feeder to the solid outletof the drum, and the light phase and heavy phase (this phase exists in
case of three-phase separation or does not exists in case of two phases) are then separated out of different outlets. When used for two-phase
separation, the machine is called two-phase decanter centrifuge (also called horizontal scroll centrifuge), and the machine used for three-phase
separation is called three-phase decanter centrifuge. In our decanter centrifuges, the light liquid is exhausted by gravity force, and the heavy
liquid is discharged by the centrifugal force.
Tenchical parameters:
Type | Bowl diameter(mm) | Bowl length/ Bowl diameter | Bowl speed (r/min) | Main Power(Kw) |
LW180 | 180 | 2.5-720 | 6000 | 3-5.5 |
LW260 | 260 | 3.0-4 | 5000 | 7.5-11 |
LW355 | 355 | 2-4.5 | 4000 | 11-30 |
LW420 | 420 | 3-4.1 | 3600 | 18.5-37 |
LW450 | 450 | 2-4.4 | 3600 | 18.5-37 |
LW480 | 480 | 2-4.2 | 3200 | 18.5-45 |
LW500 | 500 | 2-4.2 | 3200 | 18.5-55 |
LW530 | 530 | 2-4 | 3200 | 22-55 |
LW580 | 580 | 2-4 | 2800 | 30-55 |
LW620 | 620 | 2-4 | 2800 | 37-110 |
LW760 | 760 | 2-3.5 | 2500 | 55-132 |
Note: In case of differences between the table and the user manual, the latter shall prevail. |