Gold mining equipment spiral chute

Gold mining equipment spiral chute, 1.Rugged construction, 2.Easy installation, 3.low consume, 4.ISO/CE - details see: https://www.machineto.com/gold-mining-equipment-spiral-chute-10315080

Condition:New	Type:Sprial Separator	Production Capacity:80%	Place of Origin:Henan China (Mainland)
Brand Name:Henan Good Heavy machine	Model Number:LL 900 Spiral chute	Voltage:380v etc	Power(W):per your demand
Dimension(LWH):demand the type	Weight:Various	Certification:ISO9001:2008	Warranty:one year
After-sales Service Provided:Engineers available to service machinery overseas	Model::LL 900	Inside diameter::180mm	Outside diameter::900mm
Pitch of screw::540mm 360mm	Price::negotiable	Install::as guidance of engineer	Spiral chute Color ::per your request
Processing area::high quality steel	Market::Worldwide	Performance::Reliable

Spiral chute descriptions

Spiral chute is our company's concentrating experienced scientific product, which is the best concentrating equipment, especially for concentrating sand ore in beach, riverside, seashore and stream.
The product is made of the fiberglass lined with wear-resistant polyurethane and corundum cover; The advantages are light, moisture proof, anti-rust, wear proof, anti corrosion and no noise, properly suitable for the different feeding particle sizes and grades. It is the domestic advanced level, the new highly effective equipment.

Spiral chute is applicable to material separation of size 0.3 - 0.02 mm, such as of Iron ore, Ilmenite, Chromite, Pyrite, Zircon and Rutile, Monazite, Tungsten ore, Tin, Tantalum ore, Niobium mine and other non-ferrous metals, precious metals and non-metallic minerals, which with proportion differences

Spiral chute working principle

In order to have a good separation, there should be a difference in Specific Gravity’s of at least 1.0. One main benefit of spiral concentrators is they have no moving parts. The feed range, in percent solids, to a spiral ranges from 20% solids up to 40% solids. Depending upon the material characteristics, a maximum efficiency will usually be reached somewhere in this range. All that is required are some slurry pumps, the slurry to be separated and the banks of spirals with a feed distributor.

Slurry is pumped to the top of the spiral (typically 13’ to 15’ from the floor), and it enters a feed distributor that evenly distributes the feed to each spiral concentrator. The design and shape of the spiral make it work, when combined with gravitational acceleration. As the slurry travels the spiraling path down the spiral, mineral grains settle and start sorting according to size, density and to a lesser extend shape. Low density particles are carried with the bulk of the water towards the outside of the spiral (perimeter), while particles with the greatest density migrate towards the inside of the spiral.

Spiral chute features
1. Reasonable structure and small occupation area
2. High recovery, high efficiency, and precise separation
3. Non-required power
4. Light in weight, anti corrosion, rust and wear resistant
5. Simple installation and Minimal maintenance requirements
6. Low operating cost and long working life
7. Reliable running with minimal operator attention
8. Strong adaptability to fluctuation of feeding amount, density, size and grade
9. The surface of corundum forms strong friction the concentration effect surpass plastic surface

Gravity Spiral Chute Operation Rules

The chute uses a single shaker is not graded selection, resulting in 0.074 ~ 0.05 mm size fraction of the tin mineral recovery is poor, -0.05 mm single cassiterite basically no recovery, integrated tin tailings grade is generally 0.6% or more, the results metal loss, waste of resources, economic impact of mines.

When the ore pulp flows near the carved groove edge, vortex will be generated; ore bed will be thickened at the same time, which strengthens the loose stratification effect and the coarse but light minerals separated out from the middling band cross the groove to move outwards. The bottom heavy mineral flows to the inner edge along the groove guide. As a result, the middling quality ore volume decreases and the concentrate metal recovery rate is improved. The following table lists the contrast results of Gongchangling feint hematite ore’s grade sand setting industrial test (one coarse, one concentrated process) done by spiral chute with and without carved groove.

Spiral Chute Main Technical Parameters :

Model	Helix No.	Cycle	Feed Size (mm)	Feed Density ( %)	Capacity (t/h)	Area(m2)	Height(m)
DL2000 DL1500	2-4 2-4	3-5 4	0.04-4 0.03-3	20-45 20-45	15-45 10-25	5.7 4.8	6.6 5.98
LL1200	2-4	4-5	0.03-0.3	25-50	4-6	2	5.23
LL900	2-3	4-5	0.03-0.3	25-50	2-3	1.2	3.2
LL600	1-2	4-5	0.02-0.2	25-50	0.8-1.2	0.5	2.6
LL400	1-2	4-5	0.02-0.2	25-50	0.5-0.2	0.25	1.5