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LS screw conveyer is optimized and designed through learning from foreign advanced technologies by the scientific research personnel of our company. The conveyor is a mechanical product which uses the motor through the reduction gears to put the helix in motion so as to drive the materials, realizing the conveyance. Such merits are available as simple structure, small area occupation, long (high) distance of conveyance, closed conveyance, multipoint material feeding or unloading. It can convey all types of powders, granules or small bulk cargos in a horizontal, tilting or vertical direction. It is an ideal piece of conveying equipment for the industries as follows: chemical, medicine, agricultural chemical, fertilizer, dyestuff, metallurgy, mining, salt, concrete admixture, plastics, building material, food and feed.
Connotation of type:
Mode of feeding and discharging
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Adopt the above 5 modes of feeding and discharging of material |
Structure of LS screw conveyer
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1.Motor
2.Reduction box
3.Engine base
4.Top chock
5.Discharging hole
6.Cylinder
7.Spiral
8.Feeding hole 9.Bottom bearing chunk
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Technical parameters
| When elevation of transmission β=45° and rotate speed of spiral n=134r/min: |
| Type |
LS14 |
LS16 |
LS20 |
LS25 |
LS30 |
| External diameter of spiral D1(mm) |
140 |
160 |
200 |
250 |
300 |
| Inner diameter of charging barrel D(mm) |
149 |
170 |
209 |
260 |
310 |
| Diameter of screw shaft d(mm) |
42 |
60 |
63 |
73 |
80 |
| Lead of screw T(mm) |
110 |
130 |
160 |
200 |
240 |
| Delivery value t/h |
Concrete ρ=1.25 |
8.3 |
11 |
21 |
40 |
69.5 |
| Salt ρ=1.2 |
8 |
10.5 |
20.1 |
38.4 |
66.7 |
| Lime ρ=0.9 |
6 |
7.9 |
15 |
28.8 |
59.9 |
| Coal ash ρ=0.6 |
4 |
5.3 |
10 |
19.2 |
39.7 |
Structure size
|
type |
A |
C |
L2 |
L1 |
L |
M×N |
E×F |
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LS14 |
220 |
110 |
85 |
750 |
Determined according to clients' requirements
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LS16 |
250 |
130 |
90 |
900 |
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LS20 |
290 |
150 |
100 |
1000 |
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LS25 |
360 |
180 |
120 |
1100 |
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LS30 |
420 |
220 |
140 |
1300 |
Selection calculation
Delivery value ： G=47.1KαKβρ(D 2 -d 2 )·Tn(t/h)
Where, ρ—material unit volume quality, t/m 3 T—spiral pitch, m
n—speed of screw, n=134-500r/min D—inner diameter of cylinder, m
Kα—fill factor, Kα=0.52-0.70 d—spiral diameter, m
K β — bias transmission coefficient
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Elevation of transmission β° |
0 |
30 |
45 |
60 |
90 |
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Kβ |
1 |
0.82 |
0.73 |
0.64 |
0.46 |
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