Desliming Hopper

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Product Details

Desliming Hopper (Hydraulic Cone Classifier)

The Desliming Hopper (also called Desliming Cone or Cone Classifier) is a simple, power-free gravity separation equipment. It looks like an inverted pyramid or cone.

It is mainly used for Desliming (removing fine mud) and Thickening (increasing pulp density) before hydraulic classification. Compared to a Hydrocyclone, it requires no pressure and has zero energy consumption.

Working Principle: Gravity Settling

Utilizing gravity to separate heavy sand from light slime in a static pool.

Feeding

Slurry enters the central feeding cylinder. The flow velocity slows down significantly due to the expanding volume of the cone.

Settling

Coarse and heavy particles settle down to the bottom apex. Fine slime and water rise to the top surface.

Discharge

Thickened sand is discharged from the bottom valve (Underflow). Clarified water or slime overflows into the peripheral launder (Overflow).

Technical Choice: Desliming Hopper vs. Hydrocyclone

When to use a simple Hopper and when to use a Cyclone?

Feature	Desliming Hopper	Hydrocyclone
Force	Gravity (1G).	Centrifugal Force (High G).
Power Cost	Zero (Gravity feed).	Medium (Requires Pump).
Cut Point	Coarser (>0.074mm).	Finer (down to 0.01mm).
Capacity	Large Volume Buffer.	High Throughput per unit.

Core Advantages

1. Zero Energy Cost

It relies entirely on gravity. No motors, no electricity, and no moving parts. Extremely low operating cost.

2. Large Storage Capacity

The large cone volume acts as a buffer tank, stabilizing the feed flow for downstream equipment like gravity separators.

3. Wear Resistant

Simple structure with minimal wear. The discharge valve is the only part that might need replacement over long periods.

Typical Applications

● Hydraulic Classification:
Feeding consistent pulp to the 6-S Shaking Table or Spiral Chute.
● Desliming:
Removing slime from Silica Sand or Phosphate Ore before flotation.
● Thickening:
Increasing slurry density before the Ball Mill or Filter Press.
● Water Recovery:
Clarifying overflow water for recycling in the plant.

Technical Parameters

Model	Diameter (mm)	Settling Area (m²)	Volume (m³)	Feed Size (mm)
φ1000	1000	0.75	0.27	< 2.0
φ1500	1500	2.0	0.83	< 2.0
φ2000	2000	3.0	2.27	< 2.0
φ2500	2500	4.9	4.0	< 2.0
φ3000	3000	7.0	7.0	< 2.0

Frequently Asked Questions (FAQ)

Q: How to control the underflow density?

A: By adjusting the bottom valve opening size. A smaller opening results in higher density but slower discharge rate. Automatic valves can be installed for precise control.

Q: What is the maximum feed size?

A: It is designed for fine particles, typically less than 2mm. Larger particles might block the bottom discharge outlet.

Q: Can it replace a thickener?

A: For small-scale operations, yes. It acts like a mini Thickener (Concentrator). However, for large-scale continuous thickening, a mechanical drive thickener is more efficient.

Simple & Cost-Effective Desliming

Optimize your gravity circuit with OreSolution Desliming Hopper. Zero power cost.
Contact us for sizing and factory price.

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