Spiral Chute

Spiral Chute

【Introduction】:
A gravity separation equipment of separation different weight mineral by inertial centrifugal force pulp produced in helix turning motion
【 Capacity 】:
0.15~16t/h
【Improvement】:
There are 3 kinds of chute for user to choose, glass steel chute, Xinhai wear-resistant rubber liner, polyurethane rubber liner.

【Advantages】

Stable, easy control, wide range of concentration.

Large capacity, enrichment ratio, high recovery rate.

Small cover space, less water consumption, simple structure design, no need of power.

Simple installation, convenient operation,less investment, quick return.

【Product Structure】

Ore pulps are uniformly fed into machine and form different layers as they pass across chute. Heavy minerals precipitate to bottom and are moved toward inner edge by the comprehensive action of various forces; light minerals are moved toward outer inner due to the speedy rotation. As a result, mineral particles with different density are divided into three zones------concentrate, middling and tailing.

Spiral chute is suitable for treatment of 0.6-0.03mm lode and placer, but high mud content is bad for separation. At present, spiral chute has been widely used in the treatment of iron ore, tungsten, tin ore, niobium tantalum ore, coastal and riverside placer and gold ore.

【Technical Parameters】

Model BLL-2000 BLL-1500 BLL-1200 BLL-900 BLL-600 BLL-400
Outside Diameter (mm) 2000 1500 1200 900 600 400
Screw Pitch (mm) 1200 900, 675 900, 720, 540 675, 540, 405 450, 360, 270 240, 180
Pitch Diameter Ratio 0.6 0.48, 0.36 0.75, 0.6, 0.45 0.75, 0.6, 0.45 0.75, 0.6, 0.45 0.6, 0.45
Lateral Dip Angle (degree)
Max. Screw Numbers Per Set 3 4 4 4 2 2
Feed Size (mm) 2.00~0.04 0.8 ~0.037 0.3~0.03 0.3 ~0.03 0.2~0.02 0.2 ~0.02
Feed Density (%) 30 ~55 30 ~55 25 ~55 25 ~55 25 ~55 25 ~55
Capacity (t/h) 7~10 6~8 4~6 2~3 0.8~1.2 0.15~0.2
Overall
Dimension

Length (mm)

2120 1600 1360 1060 700 460

Width (mm)

2120 1600 1360 1060 700 460

Height (mm)

5600 5300 5230 4000 2600 1500
Weight (kg) 900 850/800 700/650/600 450/400/350 120/100/80 50

【Successful case】

A plant in Shandong seashore, the ore are mainly - 0.15 mm grade except for a small amount of bigger particles, the plant area is small, but the capacity is large. According to plant site and processing capacity, Xinhai spiral gravity chute manufacturer specially added wear-resisting rubber in the internal of spiral chute to increase its wear resistance, acid-resisting and corrosion resistance. The layered minerals is obvious in the operation, the machine service life is more half a year than ordinary spiral chute.