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Tubular Conveyor Belt Overview & Structure
The tubular conveyor belt is mainly composed of the core body, the covering layer and the special edge structure. [1-2] The core body is supported by high-strength canvas or steel wire rope, and is covered with high-strength and high-maintenance quality rubber. The two sides of the belt body are processed by special production methods, which give it appropriate lateral rigidity, making it easy to form a tube shape and resistant to fatigue. The belt edge is smooth to ensure a good seal at the joint. [2-3] The tubular conveyor belt needs to be used in conjunction with the cylindrical belt conveyor, and is rolled into a tube shape by external force to achieve closed transportation. [1-2] The main structure of the cylindrical belt conveyor usually consists of six parts: the feeding section, the forming device, the curved arc section, the vertical section, the discharging section and the return section. [4]
Core Construction Types
The core of the tubular conveyor belt mainly has two types: one is based on high-strength canvas as the framework, and the other is based on steel wire rope as the framework. [1-2] The fabric core can be single-layer or multi-layer synthetic fiber canvas. [3]
Covering Layer & Lateral Rigidity
The core is covered with high-strength and high-maintenance quality rubber as the protective layer. The two sides of the belt body adopt special production processes to give it appropriate lateral rigidity, making it easy to form a tubular shape and resistant to fatigue. The belt edge is smooth to ensure a good seal at the connection points. [2-3]
Conveyor Operation & Transition
The tubular conveyor belt needs to be used in conjunction with the circular pipe belt conveyor. [1-2] Its main structure is usually divided into six parts: the feeding section, the forming device, the arc-shaped section, the vertical section, the discharging section, and the return section. The forming device is used to wrap the conveyor belt into a sealed circular tube shape. [4] During operation, after receiving materials at the tail transition section, the conveyor belt gradually changes from a flat shape to a U-shape, and then gradually rolls into an O-shape to enclose and run the materials; at the head transition section, it gradually unfolds to discharge the materials. [5]
Modular Structural Innovation
In the design of the conveyor belt structure, there is also modular innovation. For instance, by connecting multiple sub-belts and combining them with a quick-lock mechanism, the width of the tubular conveyor belt can be freely adjusted. [10]
Performance & Operational Characteristics
The tubular conveyor belt operates in a fully enclosed manner, ensuring that there is no dust flying or spillage of materials, and it does not affect the environment. It is particularly suitable for fine materials such as powders or pastes. It protects the materials from external environmental factors such as wind, rain, and snow. [2] [6] The closed conveyor system effectively reduces the emission of coal dust. [7]
High Incline & Spatial Curves
The tubular conveyor belt increases the friction coefficient between the material and the belt, and the maximum conveying angle can reach 30° to 45°. [6-7] The tubular conveyor belt can achieve spatial curved arrangement, including horizontal, vertical and three-dimensional bending. One conveyor can replace a system composed of multiple ordinary conveyors. [6] It has a smaller curve turning radius. [2] [7]
Energy Saving & Low Noise
The closed structure can reduce noise, has a smaller cross-section and saves space. The rolling friction is small, energy-saving and efficient. There are cases showing that energy consumption is reduced by 25%.
Material Adaptability
The tubular conveyor belt has various types of fire resistance, heat resistance, cold resistance, chemical corrosion resistance, flame retardancy, and anti-static properties.
Frequently Asked Questions (FAQ)
Q What is the main composition of a tubular conveyor belt?
A tubular conveyor belt is primarily composed of the core body (high-strength canvas or steel wire rope framework), a high-maintenance protective rubber covering layer, and specially processed edges designed to provide lateral rigidity and reliable joint sealing.
Q How does the tubular conveyor belt form and run during operation?
After receiving materials at the tail transition section, the belt transitions from a flat shape to a U-shape, and then rolls into an enclosed O-shape tube via a forming device. At the head transition section, it unfolds back to a flat shape to discharge materials.
Q What are the key environmental benefits of enclosed tubular conveying?
The fully closed structure prevents dust emission and material spillage, effectively cuts down coal dust pollution, and shields fine powders or pastes from weather elements such as wind, rain, and snow.
Q What are the maximum inclination angles and bending capabilities?
Due to increased friction between belt and material, it can achieve conveying angles of 30° to 45°. It also supports tight turning radiuses with horizontal, vertical, and complex 3D spatial curved arrangements.
Q How much energy can be saved with a tubular conveyor system?
Thanks to its low rolling friction and compact cross-sectional design, tubular conveyor systems operate with high efficiency, with recorded cases demonstrating energy consumption reductions of up to 25%.
Q Which special environmental resistance grades are available?
Tubular conveyor belts can be customized for specific industrial environments, featuring fire resistance, flame retardancy, heat resistance, cold resistance, anti-static properties, and chemical corrosion resistance.