How to calculate the motor power of the single screw extruder?

Using the formula n=k*d*d*n, d is the diameter of the screw (cm); n is the speed of the screw (r min); k is the coefficient (k = at d 90mm; d at 90mm, k=.

The single-screw extruder is mainly used for extruding soft and hard PVC, polyethylene and other thermoplastics, and can process a variety of plastic products, such as blown film, extruded tube, pressing plate, drawn ribbon, etc., and can also be used for melt granulation. The plastic extruder has advanced design, high quality, good plasticization, low energy consumption, and adopts involute gear transmission, which has the characteristics of low noise, stable operation, large bearing capacity and long life.

The single-screw extruder is generally divided into three sections in terms of effective length, and the effective length of the three sections is determined according to the size of the screw diameter, pitch and depth of the screw, which is generally divided into one-third of each.

The high-efficiency single-screw extruder adopts a two-stage overall design, strengthens the plasticizing function, ensures high-speed, high-performance and stable extrusion, and the special barrier comprehensive mixing design ensures the mixing effect of the material, and the high shear and low melting plasticization temperature ensures the high-performance, low-temperature and low-pressure metering extrusion of the material. Design concept and features: high-speed, high-yield extrusion on a high straight basis.

The output of the extruder is related to the extruded plastic raw materials, screw directness, and screw length-diameter ratio. There are also specific configurations. There is also no fixed power!

The output of a single screw is measured in terms of the extrusion section.

Output = material density (g cm3) * cross-sectional area when the material is full in the extrusion section (cm2) * lead (cm limited to single head) * speed (r min) * conveying efficiency (%)

The calculated result unit should be g min, which should be converted to kg h;

The power needs and material viscosity, speed, output, screw parameters related to the relevant book to do the relevant introduction, you can check the information.

I would also like to know that the output of soft PVC pellets is 500--600 kg per hour for a single screw extruder 180?

It is usually calculated from the motor power.

If it is a single-screw extruder, the output torque t=p*9550 n, where p is the motor power, 9550 is the coefficient, and n is the maximum screw speed, which means that there is a 5% loss of energy loss in the transmission process of the reducer.

If it is a twin-screw extruder, the output torque t=p*9550 n2, divide by 2 because the output torque is given to two screws, and the calculated torque is the torque of a single screw.

The value calculated by this formula is usually slightly higher than the actual value, because for example, the designed single-shaft torque is the required motor power is extrapolated backwards according to the designed single-shaft torque using the above formula. Because the standard motor power is jumped, the calculated motor power is not exactly there, so the motor with a larger and closest gear will be selected to ensure sufficient output torque.

Is 150 10 so short, rubber extruder? Not necessarily, maybe 160 or 185 kW

SZ150 10 motor power 90-110 DC speed regulator, heating power 60-80 kW.

Simpler, 1. Screw diameter material. 2. The size of the motor. 3. Inverter brand. 4. The size of the reducer. There are only a few main engines, and there are generally cooling water tanks, traction machines, cutting machines, winders and the like behind them.

It mainly depends on the length-diameter ratio of your single screw, generally 45kw is enough, if you exceed 30:1, it will be 55kw or 75kw.

90kw or 110kw, depending on your requirements, choose.

Whether the difference is a high-speed single screw or not is not determined by the shape of the screw.

Different materials require different process combinations, resulting in screws of different shapes.

Whether it is a high-speed single-screw extruder depends on the power of the extruder motor, as well as the material of the screw and reducer, whether it can withstand high-speed extrusion.

In addition, there is no clear quantitative indicator for the concept of high-speed single-screw extruder.

Cone double 6 tons a day, flat double a little less.

Our company has 65 machining high fillers, and the output is in.

Look at what to do, pp flat double 24 hours a day 18 tons of passing.

Landlord! I'll give you a few directions to consider:

1. Check the instability strength.

The length of the screw is relatively large, and the pressure is also relatively large, in this case, the instability of the screw needs to be considered. The instability formula in material mechanics can be used for calibration checking. It is related to the modulus of elasticity of the material.

2. Screw compressive strength.

Whether the screw itself will be crushed or not can be judged by Sun Zai Chan's ultimate stress, which can be checked in the table.

3. Failure of thread compressive deformation.

4. Thread shear deformation fails.

Mainly in the above four aspects, the material and heat treatment are determined according to these strength standards.

I don't know your specific requirements and can't make specific calculations.

You can send me the specific requirements, and I will calculate it for you, see what material is needed, and what kind of heat treatment is required.