Sand Dryer

Sand Dryer

Outer cylinder length: 6-8.5(m)

Production capacity: 20-99( t/h)

Processible materials: river sand, artificial sand, silica sand, yellow sand, mineral sand, mineral powder

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Sand dryers including river sand dryer, sea sand dryer, silica sand dryer and quartz sand dryer are specialized in drying industrial sand. In order to save much energy and improve the drying efficiency, we usually use the three-drum dryer or the three-return-stroke dryer.

The sand dryer can dry a lot of materials: artificial sand, river sand, sea sand, yellow sand, silica sand and perlite,  etc.

Sand Dryer

Structure of the sand dryer

The sand dryer owns three layers of drying drums with three different diameters which are inset and combined by each other according to certain mathematic relation and structure. This special structure will form a heat preservation system which will make the heat emitted from the surface of the internal and middle drums exchange with that of the outer drum. The outer drum lies at the low temperature end of the hot air, so it can reduce the loss and areas of the thermal emission, make full use of the waste heat, increase the heat exchange area, and improve the thermal efficiency.

Sand Dryer

In order to finish the sand drying process, the sand dryer needs to work with other machines including disk feeder, belt conveyor, hot-blast heater, liner vibrating screen, elevator and dust collector which are all connected quite perfectly to guarantee the smooth operation of the whole workflow.

Technical data:

Item φ2.0×6m φ2.5×6.5m φ2.7×7m φ3×7m φ3.2×7m φ3.6×8m φ4.2×8.5m
Diameter of outer cylinder (m) 2.0 2.5 2.7 3 3.2 3.6 4.2
Length of outer cylinder (m) 6 6.5 7 7 7 8 8.5
Cylinder volume () 18.84 31.89 40.5 49.46 56.26 81.38 118
Rotating speed of cylinder (rpm) 3-10 3-10 3-10 3-10 3-10 3-10 3-10
retention time of materials (min) 12-30 12-30 12-30 12-30 12-30 12-30 12-30
Initial moisture of materials (%) 6-25 6-25 6-25 6-25 6-25 6-25 6-25
Final moisture of materials (%) ≤1 ≤1 ≤1 ≤1 ≤1 ≤1 ≤1
Highest intake air temperature ( ℃ ) 750-900 ℃ 750-900 ℃ 750-900 ℃ 750-900 ℃ 750-900 ℃ 750-900 ℃ 750-900 ℃
Production capacity (T/H) Slag 20-25 25-30 30-35 35-10 40-45 50-65 70-85
Coal ash 10-17 17-21 20-25 23-27 25-30 30-45 45-63
Yellow sand 20-27 25-40 27-45 30-45 35-50 55-75 75-99
Motor type Yr160m-4 Yr132m-4E Yr160m-4 Yr160m-4 Yr132m-5E Yr160m-4E Yr160m-4E
Motor power (kw) 7.5×2 11×2 7.5×4 7.5×4 11×4 15×4 18.5×4
Reducer type XWD-6 XWD-6 XWD-6 XWD-6 XWD-6 XWD-8 XWD-8
Velocity ratio of reducer (I) 17-29 17-29 17-29 17-29 17-29 17-29 17-29

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