Rotary Dryers

Silica Sand Rotary Dryer

Silica Sand Rotary Dryer

Brief Introduction of Silica Sand Rotary Dryer:

Silica Sand Rotary Dryer is ideal suitable for drying the silica sand with high heat efficiency. As the moisture of silica sand is surface moisture, in order to increase the heat efficiency,we need to increase the contact area between the hot air and sand inside the silia sand dryer as much as possible.

◆ Silica Sand Rotary Dryer is also known as rotary drum sand dryer. For the drying of silica sand , the rotary drum dryer is used widely, and usually it is single drum sand dryer and triple-pass drum sand dryer.
◆ As the moisture of silica sand is surface water, then in order to enhance the heat efficiency and processing capacity, we need to increase the contact area between silica sand and hot air as much as possible. Our triple-pass drum silica sand dryer achieves this aim perfectly. For one time drying, the silica sand dryer can dry the silica sand to be below moisture 1% directly.

Features of Silica Sand Rotary dryer:
1. Our Silica Sand Rotary dryer is designed with anti-sticky drum-wall and assembled material-lifting board.
2. Our Silica Sand Rotary dryer is large sized drying equipment is primarily composed of belt conveyor, heating furnace, drying device, and air intake and air outlet device, and more. The vibrating feeder enables materials to spread uniformly on the mesh belt.
An air-intake fan with large air flow blows away water content of materials, and then the water content will be discharged from the air-outlet. 3. Our Silica Sand Rotary dryer has the features of low noise, little pollution and good drying effect.

Advantages of Silica Sand Rotary Dryer:
1. Compact structure, reasonable layout and simple structure.
2. Reliable operation, low energy consumption, high thermal efficiency of sand rotary dryer machine.
3. Easy to automatic control, reduce operating personnel,save the labor resources.
4. Small foundamental investment reduces the one-off investment.

Structure of Silica Sand Rotary Dryer:
Drum, gear, ring, carrier roller, air pipe, high pressure draught fan, reducer machine, chimney, cyclone dust catcher, 40mm thickness heat insulating layer, feeder, electric control box, belt conveyor, etc.

Silica Sand Rotary Dryer Working Principle:
◆ Firstly, use one belt conveyor or bucket elevator to send the wet silica sand into the drum of silica sand dryer.
◆ On the inner wall of the cilinder/drum, there are many lifting plates which is welded according to one special methods. When the Silica Sand Dryer's drum is rotating, these lifting plates makes the silica sand up and down to mix with the hot air completely. Durng this process, the moisture is evaporated.
◆ On the another side of the silica sand dryer, there is one high pressure draught fan which sucks out the steam, and then the steam goes into the cyclone dust separator.
◆ In the cyclone dust separator, the dust inside the steam falls down and goes out through the discharging hole of the cyclone dust separator. The steam goes into atmosphere directly through the chimney which is connected to the cyclone dust separator.
◆ Furnace for the silica sand dryer usually has two types. For the handling capacity below 30 t/h, our company's new design hot air furnace is very suitable. We have produced well the hot air furnace at our factory, and later when the user gets the hot air furnace, the user only need to connect the hot air furnace to the silica sand dryer directly by themselves. It will save the user much time and cost.
◆ When the handling capacity is bigger than 30t/h, the fluid bed furnace will be the best choice. The fluid bed furnace's heat efficiency is more than 95%, and you also can use the low level fuel such as brown coal, etc. But as the fluid bed furnace is large, and it need to be built at the customers' site.

Technical Parameter of Silica Sand Rotary Dryer:

Highest InletAir Temperatur
Production Capacity
SZ-600 3-5 3-8 ≤700 3 0.5-1.5 2.9 Productivity
is related
with heating
SZ-800 3-5 3-8 ≤700 4 1.5-3.0 3.5
SZ-1000 3-5 3-8 ≤700 5.5 3.0-6.5 5.6
SZ-1200 3-5 3-8 ≤700 7.5 6.5-9.5 12
TDSZ-1500 3-5 2-6 ≤850 15 9.5-15 17.2
SZ-1800 3-5 2-6 ≤850 18.5 15-22 25
SZ-2000 3-5 1.5-6 ≤850 18.5 22-26 36
SZ-2200 3-5 1.5-6 ≤850 22 26-30 45
SZ-2400 3-5 1.5-5 ≤850 37 30-36 55
SZ-2600 3-5 1.5-5 ≤850 45 36-42 65
SZ-2800 3-5 1.5-5 ≤850 55 42-48 70
SZ-3000 3-5 1.5-5 ≤850 75 48-55 82.8
SZ-3200 3-5 1.5-5 ≤850 90 55-75 98
SZ-3400 3-5 1.5-5 ≤850 110 75-85 135
SZ-3600 3-5 1.5-5 ≤850 160 85-105 145

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