Application of screw conveyor in putty powder production equipment

According to the different output and the degree of automation, the current putty powder production equipment mainly includes simple putty powder mixer and automatic putty powder production line. In actual production, no matter it is a simple horizontal putty powder mixer or automatic putty powder complete production line, Screw conveyors play a very important role.

The roles of screw conveyor used in  putty powder production equipment

• The horizontal putty powder mixer produced by Henan Ant Constructions is equipped with a screw conveyor as the mateirals lifting and feeding equipment, which is convenient for users to do the materials feeding operation during production, and improves the work efficiency. The screw conveyor in the putty powder production line to make the machine more extensive. The automatic batching system realizes the batching work through the screw conveyor, which greatly improves the output of the equipment and saves manpower

The working principle of screw conveyor used in  putty powder production equipment

• The working principle of the screw conveyor is that the spiral auger is a spiral space surface, which is formed by a straight line around an axis at the same time rotating motion and linear motion. Therefore, when conveying materials, the screw conveyor uses the linear motion accompanied by the rotation of the fixed screw to push the materials forward. The material moves forward in a spiral line, that is, it is conveyed forward with a tumbling movement in the circumferential direction. Therefore, the speed of the horizontal slow-speed screw conveyor cannot be too high, and the vertical fast screw conveyor must use the high-speed rotation of the screw to form sufficient friction between the material and the trough to overcome the frictional resistance of the blade to the material and the material itself. Gravity ensures that the material is conveyed upwards horizontally.

• Putty powder production equipment needs to strictly follow the operating procedures during use, and do a good job of equipment maintenance. Screw conveyors are used frequently in putty powder production. We not only need to check and maintain frequently, but also need to understand the failure analysis . Maintenance work is mainly include regularly add lubricating oil to the screw conveyor bearings. The failure of the screw conveyor is generally a blockage failure. The screw conveyor is very sensitive to the material due to the small space inside of it. The material is easy to blocked  when the screw shaft rotates and the intermediate suspension bearing is easy to block materials. Therefore, clogging is the most common failure of screw conveyors. The clogging will affect the output and increase power consumption. In severe cases, it will burn out the motor, twist the screw shaft, and affect the normal production. There are many reasons for blockage. The following methods can be taken to prevent blockage:

The methods to solve blockage problem of screw conveyor used in  putty powder production equipment

1. Reasonably choose the technical parameters of the screw conveyor, such as slow screw conveyor speed can not be too large;

2. Strictly implement the operating procedures to achieve no-load start and no-load stop; ensure continuous and uniform feeding;

3. Enlarge the discharge opening or lengthen the end of the trough to solve the problem of poor discharge or discharge speed too slow. At the same time, a section of oposite direction blade can be installed at the end of discharge port to prevent from being blocked;

4. It is necessary to clean the large size materials or fibrous enter the screw conveyor to prevent blockage;

5. Minimize the transverse dimension of the intermediate suspension bearing to reduce the possibility of material blocking when the material passes through the intermediate bearing

6. Add an anti-blocking valve at the discharge end cover. When a blockage occurs, the anti-blocking valve is opened due to the accumulation of materials, and the power is cut off by the switch.

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