Feeding arrangement of screw conveyor:
The most important thing in the design of the screw conveyor is the loading ratio and the method of the material, because when considering the capacity and power of the conveyor, it should be based on the percentage of the selected loading volume. A variety of different loading arrangement as follows:
The transportation of specially designed spiral sealing screw feeder in the tubular body, can make the material at a predetermined speed from the silo in material output, material quantity and material of the output is independent of the height.
The rotating impeller feeder is above the cylindrical rotating impeller with a specific volume of the discharge of materials to a certain speed. The feed quantity is determined by the rotational speed. The utility model can be synchronously driven with a screw conveyor or can be independently driven by a fixed speed or variable speed transmission device.
It is often necessary to arrange a conveyor with multiple points of feed, which must be manually adjusted. When only one opening is opened at any given time, it is necessary to restrict the gate or switch to allow the conveyor to be overloaded at maximum opening. When more than one feed opening is required, the flow rate of each feed inlet must be carefully adjusted so as not to exceed the total capacity of the conveyor. When a plurality of feed ports need to be fully opened and fed to the conveyor, the total material flow must be controlled.
From the fixed silo loading:
When directly by screw conveyor fixed storage charge, and no flow control device, it has greatly increased the risk of overload. Therefore, additional instructions load current ammeter in the motor controller, which is a simple and practical method for indicating the maximum load. This method is suitable to control the screw conveyor in manual loading.
Materials often need to vertically fall into the entrance of the folding conveyor, because the material block or particle inertia impact, have broken or worn equipment may. This could be the baffle or buffer chamber mounted on the inlet chute to overcome.
Unloading arrangement of screw conveyor:
Standard discharge is one of the most widely used unloading arrangement, which is to use the standard discharge port to restrict the discharge of material and to directly feed the material into the following equipment or storage device.
Terminal discharge similar to standard discharge port. But the end of the discharge port is located in the groove of the screw conveyor, the end part of the flange and the groove end together.
Non discharge port:
The material through an opening at the bottom of the spiral groove directly fall. Generally used in the middle of the discharge device, at the point of unloading until there is no material difference between the need to stop unloading. For example, for material unloading.
To the hopper, the hopper or silo unloading and stacking of cloth. At the bottom of any required length of conveyor spiral groove opening unloading material. The material is piled up to form a natural material pile, and the material coming from the back is sent to the unloaded place through the material heap.
Spiral groove end unloading:
The material directly through the opening at the end part of the screw conveyor unloading tank. The screw is supported by a local end plate and the bearing is mounted on the flange of the end. This unloading method cannot be used when the fill factor of the conveyor is over 0.45.
Open end discharge:
Suspension bearing screw conveyor tail section spiral with a standard, this form of unloading arrangement may be free to material unloading to the silo or storage piles and similar places.