Model	LW230X700VFD	LW450X1000N	LWG355X1250N	LWG-VFD355X1250N
Bowl Diameter	230mm	450mm	35mm	355mm
Bowl Length	700mm	1000mm	1250mm	1250mm
Rotary Speed	0~3900r/min(VFD)	1800r/min	3300r/min	0~3300r/min(VFD)
G-Force	2535	815	2035	2035（Max）
Separation Point	2-5μm	5-7μm	2-5μm	2-5μm
Main Drive	11KW-4p	30KW-4p	30KW-4p	30KW-4p
Back Drive	3KW-4p	5.5KW-4p	7.5KW-4p	7.5KW-4p
Max Capacity	≤5m³/h	≤40m³/h	≤40m³/h	≤40m³/h
Weight	1300Kg	2700Kg	2950Kg	3000Kg
Dimension	1650×1100×900mm	2600×1860×1750m	2900×1850×1750mm	2900×1950×1750mm

II. Product Introduction

Xi'an Hongding Energy Technology Co., Ltd. (hereinafter referred to as Hongding Energy HONDIN) produces horizontal screw discharge sedimentation centrifuges (drilling fluid centrifuges) for the separation and clarification of suspensions containing solid particles with a particle size d ≥ 2 μm, a solid concentration of 2–70%, and a liquid viscosity υ ≤ 0.01 Pa•s. It is also suitable for separating amorphous materials that are difficult to regenerate filter cloth and suspensions with a large range of solid concentration variations. Applications include petroleum, chemical, food, pharmaceutical, and environmental protection fields requiring solid-liquid separation. It can complete solid dehydration, liquid clarification, liquid-liquid-solid three-phase separation, and particle size classification.

Hongding Energy's LW series horizontal screw discharge settling centrifuge (drilling fluid centrifuge) is a specialized solid-liquid separation device designed specifically for the characteristics of oil drilling fluids. It can complete feeding, centrifugal settling, and unloading processes at full speed. It is mainly used for recovering barite, removing fine solids, reducing the solid content of drilling fluids, controlling the density and viscosity of drilling fluids, ensuring drilling fluid performance, and playing a crucial role in rapid drilling.

III. Working Principle:

The LW series horizontal screw discharge settling centrifuge (drilling fluid centrifuge) is driven by two motors. The main motor drives the drum and differential housing via a belt, while the auxiliary motor drives the screw propeller after speed change via the differential. This ensures that the drum and screw propeller rotate in the same direction with a certain differential speed.

When material enters the inner cylinder of the screw propeller from the feed pipe, due to high-speed rotation, the material flows towards the drum wall through the discharge port. Due to the different centrifugal forces acting on the constituent materials, the heavier phase rapidly deposits onto the inner wall of the drum, while the lighter phase adheres more slowly to the surface of the heavier phase, forming an interface between them. As the heavier phase deposition increases, the tip of the spiral blade enters the heavy phase deposition layer. At this point, the drum and the spiral propeller are rotating at high speed in the same direction with a certain speed difference. This relative speed difference causes the heavy phase particles to move towards the smaller end of the discharge port, while the lighter liquid flows through the spiral channel to the liquid phase outlet. The position of the liquid phase overflow port is controlled by an adjusting plate.

IV. Centrifuge Features:

1. Technical support from Xi'an Petroleum University

2. Main unit material: SS304/SS316 or wear-resistant alloy

3. Screw propeller: Stainless steel with a wear-resistant alloy coating

4. Discharge port: Protected by a wear-resistant alloy ring or a wear-resistant alloy strength coating

5. Bearings: German imported FAG/SKF bearings

6. Electrical components: SIEMENS/Schneider/CHINT

Please consult your account manager for more details!

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