Martin Screw Conveyor

Martin Screw Conveyor

Product introduction:
It is suitable for horizontal or inclined transportation of powder, granular and small bulk materials, such as coal mine, ash, slag, cement, grain, etc. The material temperature is less than 200 C. It is not suitable for transporting deteriorating, viscous and caking materials.
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Product Details

1. Product introduction: 

The screw feeder is a new generation product which integrates steady-flow transportation, weighing measurement and quantitative control of powder materials; it is suitable for continuous measurement and proportioning of powder materials in various industrial production environments; it adopts many advanced technologies with reliable operation and high control accuracy; it is especially suitable for continuous measurement and matching of powder materials in building materials, metallurgy, power and chemical industries. Material. Spiral feeder is widely used in various industries, such as building materials, chemical industry, electric power, metallurgy, coal mine carbon, grain and other industries. It is suitable for horizontal or inclined transportation of powder, granular and small bulk materials, such as coal mine, ash, slag, cement, grain, etc. The material temperature is less than 200 C. It is not suitable for transporting deteriorating, viscous and caking materials.


2. Working Principle:

The screw feeder detects the weight of the material passing through the weighing bridge to determine the weight of the material on the tape. The digital speed sensor installed at the tail of the screw feeder continuously measures the speed of the feeder. The pulse output of the speed sensor is proportional to the speed of the feeder, and the speed signal and the weight signal are sent to the feeder controller together. The processor processes and generates and displays cumulative/instantaneous traffic. The flow rate is compared with the set flow rate. The output signal of the control instrument controls the frequency converter to change the driving speed of the feeder, so that the flow rate of the material on the feeder changes, approaching and maintaining the set flow rate, thus realizing the requirement of quantitative feeding.


3.Structural characteristics:

The driving end bearing and tail bearing of the screw feeder are placed outside the shell of the material groove to reduce the influence of dust on the bearing and improve the service life of the key parts of the screw feeder. Sliding bearing is used in the suspension bearing of screw feeder, and dust-proof sealing device is installed. Nylon or plastic is used for the sealing parts of screw feeder. Therefore, the sealing performance is good, the wear resistance is strong, the resistance is small and the service life is long. The bearing bush of sliding bearing of screw feeder has powder metallurgy, nylon and Babbitt alloy. It can be selected according to different needs. The flexible layout of the inlet and outlet of screw feeder makes it more adaptable and has been recognized by users.

The screw feeder is usually composed of driving device, head section, middle section, tail section, head and tail bearing, feeding and discharging device and so on. If conditions permit, it is better to place the driving device at the discharging end, because the driving device and the discharging outlet are reasonably installed at the head section (with thrust bearing assembly), so that the screw can be in the tension-loading state. Each part of the head, middle and tail segments has several different lengths. The arrangement order of each spiral section of screw conveyor should follow the principle of arranging the spiral section in order according to the length of the spiral section and arranging the spiral section of the same specification together. The installation starts from the head and proceeds in sequence. In general arrangement of screw feeder, attention should also be paid to the fact that the base and outlet should not be arranged at the flange of the shell joint, and the inlet and outlet should not be arranged above the suspension bearing.

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