Auger Screw Conveyor

What is Auger Screw Conveyor?

Auger Screw Conveyor, referred to as Auger Screw Conveyor, uses rotating helical blades to push materials for conveying. It is mainly used for horizontal conveying, inclined conveying, vertical conveying and other forms of granular or powdery materials. The conveying distance varies according to the shape of the machine. Generally from 2 meters to 70 meters.

Auger Screw Conveyor can be divided into two types: shaft and shaftless. According to different materials, two different designs can be selected, loading and unloading at both ends, or middle loading and unloading, and the conveying direction can be reversed or simultaneously. Convey materials in two directions, flexible layout, can complete the process of material conveying and mixing, stirring, loosening, heating and cooling simultaneously.

Classification of Auger Screw Conveyor

Auger Screw Conveyor can be divided into two types with shaft and without shaft.

Shaft Auger Screw Conveyor: suitable for conveying dry or low humidity powder and granular materials, which can be arranged horizontally, inclined or vertically.

Shaftless Auger Screw Conveyor: It is suitable for conveying viscous, entangled and lumpy materials such as sludge, domestic garbage, grid slag, etc. It is generally arranged horizontally or inclined, but the inclination angle generally does not exceed 20°. It is 1.5 times that of the axis.

In addition, Auger Screw Conveyor can also choose carbon steel and stainless steel according to the nature of the conveyed material, and can also be designed as a double shaft or multiple forms.

Auger Screw Conveyor Videos

Shaft Auger Screw Conveyor - Pulverized Coal

Shaftless Auger Screw Conveyor - Sludge

Auger Screw Conveyor Application

Auger Screw Conveyor is mainly used in sewage treatment plants, garbage recycling plants, sand yards, washed sand production lines, coal-fired boilers, etc. to transport powdery, granular, and small lump materials, such as cement, fly ash, and sludge. , Garbage, sludge, fertilizer, mineral powder, sand, soda ash, etc.

Auger Screw Conveyor Features

1. Large carrying capacity, safe and reliable, with a conveying capacity of 381 cubic meters per hour.

2. The whole machine is small in size and high in speed, ensuring fast and uniform conveying. The conveying length of a single machine is 60

3. Blade thickness 6~8mm, spiral blade material: carbon steel/stainless steel/manganese steel, strong adaptability, convenient installation and maintenance, and long service life.

4. Good sealing, the shell is made of seamless steel pipe, and the ends are connected with each other by flanges, with good rigidity.

Auger Screw Conveyor Structure

Auger Screw Conveyor is mainly composed of driving device, intermediate bearing, screw shaft, screw machine body, screw blade, head section, middle section, tail section, feeding and discharging device and other components.

1. Driving device: It is composed of a motor and a reducer. The driving motor is suitable for 380V, 3-phase, 50Hz. Its protection level is IP55 (outdoor type), and its insulation level is F class. Composed of gear reducer, high torque, low noise, no oil leakage.

2. Intermediate hanging bearing: divided into two types:

①Head bearing: Thrust bearing: bear the axial force generated by the resistance of conveying materials, and place it in front of the materials.

②Intermediate bearing: split sliding bearing, used to support the screw shaft.

3. Spiral shaft: hollow design, made of steel pipe, high strength, light weight, easy to connect. Use a short length of solid shaft at the shaft-to-shaft connection and where you mount the bearings. Available in carbon steel or stainless steel.

4. Spiral blade: divided into three forms: solid helicoid, belt helicoid and blade helicoid.

5. Inlet and outlet: There are two shapes, square and round, but this can also be selected by the user.

How does the Auger Screw Conveyor work?

When the Auger Screw Conveyor works, it uses the vibration motor as the power source, and then relies on the rotating screw to push the material forward along the casing until it is discharged from the outlet.

Auger Screw Conveyor Technical Parameters

Specifications		Spiral diameter(mm)	Pitch (mm)	Speed(r/min)	Delivery capacity(m³/h)	Speed(r/min)	Delivery capacity(m³/h)	Speed(r/min)	Delivery capacity(m³/h)	Speed(r/min)	Delivery capacity(m³/h)
small	100	100	100	140	2.2	112	1.7	90	1.4	71	1.1
	125	125	125	125	3.8	100	3.0	80	2.4	63	1.9
	160	160	160	112	7.1	90	5.7	71	4.5	56	3.6
	200	200	200	100	12.4	80	9.9	63	7.8	50	6.2
medium	250	250	250	90	21.8	71	17.2	56	13.6	45	10.9
	315	315	315	80	38.8	63	30.5	50	24.2	40	13.4
	400	400	355	71	62.5	56	49.3	45	38.6	36	31.7
large	500	500	400	63	97.7	50	77.6	40	62.0	32	49.6
	630	630	450	50	138.5	40	110.8	32	88.6	25	69.3
	800	800	500	40	198.5	32	158.8	25	124.1	20	99.3

Material lumpiness	Material grindability	Filling factor	K	A
powdery	Unpolished, semi-polished	0.35-0.40	0.0415	75
powdery	Abrasiveness	0.25-0.30	0.0565	35
Small block a<60mm	Unpolished, semi-polished	0.25-0.30	0.0537	45
Small block a<60mm	Abrasiveness	0.20-0.25	0.0645	25

Auger Screw Conveyor Selection Notes

Spiral diameter: 150-1250mm

Material temperature: ≤80°C, such as high-temperature materials need to be explained in advance.

Conveying angle: the inclination angle of the screw conveyor with shaft auger is ≤45°, and the inclination angle of the screw conveyor without shaft auger is ≤30°

Speed: 60, 45r/min, the larger the diameter of the screw, the lower the speed.

Conveying length: 2-70 meters.

Conveying capacity: 1-100 tons/hour (cement), the larger the diameter of the screw, the greater the conveying capacity.

Equipment material: Q235, SUS304, SUS316L, etc.

Inlet and outlet: generally arranged at each end of the equipment, customized according to user needs.

(1) End feed, end discharge;

(2) The material is fed in the middle, and the material is discharged at both ends at the same time or alternately at both ends;

(3) Feeding at both ends and discharging in the middle;

(4) Feed in at the end or in the middle, and discharge in the axial direction at the other end or both ends.