Summary:
Everything You Need to Know About Elevator belt conveyor
What is a elevator belt conveyor?
Important components of bucket elevator
What are the advantages of conveyors?
What are common faults?
What is a elevator belt conveyor?
A bucket elevator belt conveyor is a continuous conveying machine that utilizes a series of hoppers uniformly fixed to an endless traction component to vertically lift materials. A bucket elevator uses a series of hoppers fixed to a traction chain or tape to transport loose materials vertically or nearly vertically.
The bucket elevator is suitable for lifting from low to high, and the supplied materials are fed into the hopper through a vibration table, and the machine automatically and continuously runs upward for transportation. The conveying speed can be adjusted according to the conveying amount, and the lifting height can be selected as needed. The hopper is designed and manufactured by oneself.
The hopper scoops up the material, lifts it to the top with the chain, bypasses the top wheel, and then flips it down. The bucket elevator pours the material into the receiving slot.
Important components of bucket elevator
The bucket elevator belt conveyor mainly consists of a hopper, a driving device, top and bottom rollers, a traction chain, a tensioning device, etc.
Hopper:
According to demand, the hopper can be divided into the following categories:
- Cylindrical hopper: suitable for dry, flowable, and well sprinkled granular materials
- Shallow hopper: small in depth, used for moist and flowable granular materials
- Deep hopper: used for drying materials with good fluidity
- Triangle hopper: directional self flow discharge
- Sharp angle hopper: The side wall extends to the outside of the bottom plate, forming a blocking edge. When unloading, the material can be unloaded along the groove formed by the blocking edge and bottom plate of one hopper, suitable for transporting viscous and heavy block materials.
Traction device:
- Chain
A single chain is fixedly connected to the back wall of the hopper; The double chain is connected to both sides of the hopper. Its structure and manufacturing are simple, and its connection to the hopper is very strong. When transporting materials with high grinding properties, the wear of the chain is small, but the self weight is large.
- Sprocket
The sprocket is used to mesh with the link or the block with accurate pitch on the cable. It is a solid or spoke gear that meshes with the Roller chain to transmit motion.
- Rubber tape
Fix the belt mouth with screws and elastic washers, with a belt width of 35-40mm wider than the bucket. Generally, the tape can transport materials with a temperature not exceeding 60 ℃, while the heat-resistant tape can transport materials up to 150 ℃.
What are the advantages of conveyors?
Bucket elevator is a vertical conveying equipment for lifting materials, which has the advantages of simple structure, low maintenance cost, high conveying efficiency, high lifting height, stable operation, and wide application range.
- Low driving power, adopting inflow feeding, induction unloading, and dense layout of large capacity hopper, with almost no material return and excavation during material lifting, resulting in low ineffective power.
- The lifting range is wide, and this type of lifting machine has few requirements for the types and characteristics of materials. It can not only lift general powder and small particle materials, but also improve materials with high grinding ability, good sealing performance, and less environmental pollution.
- Good operational reliability, advanced design principles and processing methods ensure the reliability of the entire machine operation, with a fault free time exceeding 20000 hours. High lifting height. The hoist operates smoothly, thus achieving a higher lifting height.
- Long service life, the feeding of the elevator adopts an inflow type, without the need for bucket excavation, and there is little squeezing and collision between materials. This machine is designed to minimize material scattering during feeding and unloading, reducing mechanical wear and tear
What are common faults?
The common faults of bucket elevator belt conveyor include the following:
Hopper belt slipping
- The hoist is overloaded and the resistance torque increases, causing the hopper belt to slip.
- l The bucket elevator uses the Friction torque between the hopper belt and the head wheel drive shaft to lift materials. If the tension of the hopper belt is not enough, the hopper belt will slip
Hopper belt deviation
- Improper connection of the hopper belt refers to the fact that after the hopper belt is combined, the edge line of the hopper belt is not in the same straight line
- The transmission shafts of the head and bottom wheels are in the same vertical plane and not parallel
- Two transmission shafts are parallel, in the same vertical plane and not horizontal
Excessive return material
The installation of the discharge tongue plate at the head outlet is not suitable, and the tongue plate is too far from the discharge position of the hopper, which can cause material return. The position of the tongue plate should be adjusted in a timely manner to avoid material return.
Hopper detachment
- Excessive feeding causes the accumulation of materials in the machine base, increases lifting resistance, and hinders the operation of the hopper, which is the direct cause of hopper detachment and deformation
- The position of the feed inlet is too low. Generally, when the elevator is in production, the hopper automatically picks up the materials that come in from the feed inlet.
- Poor material of the hopper