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Shaftless Screw Conveyor

Shaftless Screw Conveyor

Screw diameter: 100-1250mm

Conveying capacity: 458 m3/h

Transmission length: 60-70 m

Application field:Construction materials, chemical, environmental protection, electricity, medicine, metallurgy and food,etc.

Applicable material:Loose, viscous and easily wind materials,and can be transported at a temperature of up to 100 degrees Celsius.

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Product overview 

Shaftless screw conveyor is composed of driving device, shaft less screw, u-groove, lining plate, cover plate, hopper, discharge port and so on. The products are mainly used in chemical industry, food, medicine, paper making, beverage, environmental protection and other industries to transport adhesion of strong materials, paste viscous materials (such as chemical raw materials, waste pulp, malt, sludge, etc.) and easily wound materials (such as household garbage), has a unique advantage. So the screw conveyor is also known as anti - winding conveyor, garbage disposal conveyor.

Product features

Compared with the traditional helical conveyor with shafts, because it adopts the design without a central shaft and uses the whole steel screw with certain flexibility to push materials, it has the following prominent advantages:

1. Strong anti-winding property. Without interference of central axis, it has a special advantage for conveying ribbon and easily wound materials.

2. Good environmental protection performance. The screw surface is completely closed and easy to clean, which can ensure the sanitation of environment and the materials are free from pollution and leakage.

3. Large torque distance and low energy consumption. Since the screw has no shaft, the material is not easy to be blocked, and the discharge port is not blocked, so it can operate at a low speed and drive smoothly.

4. Reduce energy consumption. Torque up to 4000N·m.

5. Large conveying capacity. The conveying capacity is 1.5 times of the same diameter of the traditional shaft screw conveyor.

6. Long conveying distance. The length of single conveyor can reach 60 meters. And according to the needs of users, multistage tandem installation, ultra-long distance conveying materials.

7. Able to work flexibly. My company's development and production of mobile shaft - less screw conveyor, mobile work, a multi-purpose machine.

8,.can not only under the discharge, but also the end of the discharge.

9. the use of special lining board, the machine can work under high temperature.

 

Shaftless Screw Conveyor

Working principle

Shaft less screw conveyor on the transmission principle and common screw conveyor are basically the same, namely as a rotating screw axis, driven a nut moving along its axial direction, shaft less screw conveyor helix is equal to the screw axis, the material of screw conveyor nut, when continuous rotary helix is also continuous material conveying. The helical body of the shaft less screw conveyor is a thicker strip blade, driven by the driving end of the shaft less screw conveyor, with no shaft in the middle. The helical body contacts with the liner plate at the bottom of the inner wall of the housing (sliding).

Applied Material

Shaftless screw conveyor applicable materials

Shaftless screw conveyor site

Main technical parameters

WLS type 100 160 200 250 315 400 500 630 800 1000 1250
Screw diameter(mm) 100 160 200 250 315 400 500 630 800 1000 1250
Screw pitch(mm) 100 160 200 250 315 355 400 450 500 560 630
Rotation speed(r/min) 140 120 90 90 75 75 60 60 45 35 30
Transportation volume QΦ=0.33(m3/h) 2.2 7.6 11 22 36.4 66.1 93.1 160 223 304 458
PowerPd 1=10m(KW) 1.1 1.5 2.2 2.4 3.2 5.1 4.1 8.6 12 16 24.4
Power Pd 1=30m(KW) 1.6 2.8 3.2 5.3 8.4 11 15.3 25.9 36 48 73.3
Rotation speed(r/min) 120 90 75 75 60 60 45 45 35 30 20
Transportation volume QΦ=0.33(m3/h) 1.9 5.7 18 18 29.1 52.9 69.8 125 174 261 305
Power Pd 1=10m(KW) 1.0 1.3 2.1 2.1 2.9 4.1 4.7 6.8 9.4 14.1 16.5
Power Pd 1=30m(KW) 1.5 2.3 4.5 4.5 7 8.9 11.6 20.4 28.3 42.2 49.5
Rotation speed(r/min) 90 75 60 60 45 45 35 35 30 20 16
Transportation volume QΦ=0.33(m3/h) 1.4 4.8 15 15 21.8 39.6 54.3 97 149 174 244
Power Pd 1=10m(KW) 0.9 1.2 1.9 1.9 2.5 3.4 4.3 5.4 8.1 9.5 13.3
Power Pd 1=30m(KW) 1.2 2.2 3.8 3.8 5.4 6.8 9.2 16 24.4 28.6 39.9
Rotation speed(r/min) 75 60 45 45 35 35 30 30 20 16 13
Transportation volume QΦ=0.33(m3/h) 1.2 3.8 11 11 17 31.7 46.5 73.0 99.3 139 199
Power Pd 1=10m(KW) 0.75 1.1 1.6 1.6 2.1 3.1 3.7 4.6 5.7 7.7 11
Power Pd 1=30m(KW) 1.1 1.8 3.4 3.4 4.4 5.6 8 14 16.7 23.2 33
WLS type Screw pitch(mm) Rotation speed(r/min) Transportation volume QΦ=0.33(m3/h)
100 100 120 1.9
160 160 90 5.7
200 200 75 18
250 250 75 18
315 315 60 29.1
400 355 60 52.9
500 400 45 69.8
630 450 45 125
800 500 35 174
1000 560 30 261
1250 630 20 305

 

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