1. Characteristics and application scope:
The double screw mixing conveyor (hereinafter referred to as the screw machine) has a novel structure and advanced technical indicators. The head and tail bearings are moved outside the shell, and the middle suspension bearing adopts two interchangeable structures of rolling and sliding. Both are equipped with dust-proof sealing devices, and the discharge end is equipped with a cleaning device. The whole machine has low noise, strong adaptability, easy operation and maintenance, and flexible layout of the inlet and outlet positions.
Application scope:
Spiral machines are widely used in various industrial sectors, such as building materials, power, chemical, metallurgical, coal, aluminum magnesium, machinery, light industry, grain and food industries; Suitable for conveying powdery, granular, and small block materials such as cement, coal powder, grain, fertilizer, ash, sand, etc. at a horizontal or less than 20 ° inclination angle, with material temperature below 200 ℃.
Spiral machines are not suitable for conveying materials that are prone to deterioration, high viscosity, and easy agglomeration, because these materials will adhere to the spiral during transportation and rotate without moving forward or form material blockages at the suspension bearings, which will prevent the spiral machine from working properly.
The spiral diameter of the screw machine ranges from 200 millimeters to 500 millimeters, with a total of five specifications and lengths ranging from 4 meters to 70 meters, with one step every 0.5 meters. When selecting, the standard nominal length should be met, and special requirements can be separately stated in the optional section.
According to the driving mode of the screw machine, it can be divided into two types:
C1 method - When the length of the screw machine is less than 35m, it is driven by a single end.
C2 method - When the screw machine is greater than 35m, it is driven by both ends.
According to the type of intermediate suspension bearing of the screw machine, it is divided into:
M1- is a rolling suspension bearing that uses 80000 type sealed bearings. There is also a dust-proof sealing structure on the shaft cover, which is commonly used in places where it is not easy to add oil, does not add oil, or where oil pollutes materials. It has good sealing effect, long service life of suspension bearings, and conveying material temperature ≤ 80 ℃ (can be omitted when ordering).
M2- is a sliding suspension bearing equipped with a dust-proof sealing device, commonly used for conveying materials with high temperatures (>80 ℃) or liquid materials.