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1. Genreal description of quartz sand dryer:
Quartz sand dryers together with river san dryers belong to the same kind of dryer equipment. Generally it can adopt the monocular drum, similar to mineral powder dryer, it is mainly used for drying materials of big humidity and particle size range, is widely used in building material, metallurgy, chemical industry, cement industry, all kinds of ores, limestone, coal powder, quartz sand, clay, scrubbing yellow sand, foundry sand, sand and all kinds of metal ore concentrate, tailings not afraid of high temperature and slightly by soot pollution materials such as drying and dry. Quartz sand dryer has the advantages of high yield, low energy consumption, low maintenance.
Quartz sand drying machine generally consists of cylinder, front roll ring, after roll ring, the gear, gear roller, roller, pinion, discharging part, Yang plate, reducer, motor, air way, feeding chute and furnace body parts. The cylinder by the gear drive, the speed is generally 2-6 r/min, and the inclination of the cylinder to its length, usually between approximately 1 °-5 °.
3. Flow process of silica sand dryer:
In the drying of quartz sand, rotary drum dryer is the most commonly used industrial drying equipment. Wet material from the inlet to quartz sand dryer by hot blast stove heating, hot air produced by mixed with quartz sand fully within the dryer,, for heat and mass transfer in drying after quartz sand is being exhausted from port discharge, hot air with dust into the cyclone separator and bag filter for dust removal, after purification, the air is being exhausted from induced draft fan.
4. Characteristics of quartz sand dryer
Quartz sand dryer internal structure design is reasonable, the quartz sand particles and air contact area is large, quartz sand can fully heat, dehydration. Quartz sand in the grid copy board can fully mix and stir, and can prolong the material the whereabouts of the time, and contact with the hot air time longer, is conducive to the retention period of quartz sand inside the drum, dehydrating quartz sand more thoroughly.
The machine advantages are high yield, stable equipment operation, emergence water thoroughly. Long running life, high heat utilization efficiency, investment more provinces. The disadvantage is that covers an area of big, one-time investment high relative to the fluid bed dryer. But due to improve the service life of equipment, made up for the disadvantages of high investment to some extent.
5. Technical specification of river sand dryer:
Model
|
Shell volume (m3)
|
Capacity (t/h)
|
Gradient (%)
|
Input air temperature (℃)
|
Motor power (kw)
|
Machine weight (t)
|
Φ1.2×8.0 |
9.0 |
1.9~2.4 |
3~5 |
700~800 |
7.5 |
9 |
Φ1.2×10 |
11.3 |
2.4~3.0 |
3~5 |
700~800 |
7.5 |
11 |
Φ1.5×12 |
21.2 |
4.5~5.7 |
3~5 |
700~800 |
15 |
18.5 |
Φ1.5×14 |
24.7 |
5.3~6.6 |
3~5 |
700~800 |
15 |
19.7 |
Φ1.5×15 |
26.5 |
5.7~7.1 |
3~5 |
700~800 |
15 |
20.5 |
Φ1.8×12 |
30.5 |
6.5~8.1 |
3~5 |
700~800 |
18.5 |
21.5 |
Φ1.8×14 |
35.6 |
7.6~9.5 |
3~5 |
700~800 |
18.5 |
23 |
Φ2.2×12 |
45.6 |
9.7~12.2 |
3~5 |
700~800 |
22 |
33.5 |
Φ2.2×14 |
53.2 |
11.4~14.2 |
3~5 |
700~800 |
22 |
36 |
Φ2.2×16 |
60.8 |
13.0~16.2 |
3~5 |
700~800 |
22 |
38 |
Φ2.4×14 |
63.3 |
13.5~16.9 |
3~5 |
700~800 |
37 |
45 |
Φ2.4×18 |
81.4 |
17.4~21.7 |
3~5 |
700~800 |
37 |
49 |
Φ2.4×20 |
90.4 |
19.3~24.1 |
3~5 |
700~800 |
45 |
54 |
Φ2.4×22 |
99.5 |
21.2~26.5 |
3~5 |
700~800 |
45 |
58 |
Φ2.6×24 |
127.4 |
27.4~34.0 |
3~5 |
700~800 |
55 |
73 |
Φ3.0×20 |
141.3 |
30.1~37.7 |
3~5 |
700~800 |
75 |
85 |
Φ3.0×25 |
176.6 |
37.7~47.1 |
3~5 |
700~800 |
75 |
95 |
Φ3.2×25 |
201 |
42.9~53.6 |
3~5 |
700~800 |
90 |
110 |
Φ3.6×28 |
285 |
60.8~76.0 |
3~5 |
700~800 |
160 |
135 |