What Is a Rubber Conveyor Belt?

The rubber conveyor belt has the characteristics of heat-resistant belt, wear-resistant belt, burn-resistant belt, oil-resistant belt, alkali-resistant belt, alkali-resistant belt, heat-resistant belt, cold-resistant belt and so on. It is mainly used for the transportation of solid materials in mining, metallurgy, iron and steel, coal, hydropower, building materials, chemical, and grain enterprises.

Conveyor belts are the main components of belt conveyors. They are mainly used for large-scale continuous transportation of coal, mining, metallurgy, chemical, construction and transportation departments. Items, etc. From the microstructure point of view, the conveyor belt is mainly composed of three parts: the skeleton material, the cover layer and the primer material. The cover layer is the key part that determines its performance and use. According to the different raw materials used in the cover layer, the conveyor belt industry can be divided into two types: heavy conveyor belts and light conveyor belts. The former uses rubber (including natural rubber and synthetic rubber) as the main raw material, so it is also called rubber conveyor belt. The scope is concentrated in the fields of heavy industry and infrastructure construction; the latter mainly uses polymer materials and is mainly used in light industry fields such as food and electronics.

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First, steel wire core conveyor belt

Conveyor belt made of rubber covered with steel wire core pads as traction and carrying member of belt conveyor.

Steel rope core conveyor belt features: high tensile strength, good impact resistance, long life, small elongation, good groove formation, good flex resistance, suitable for long distance,

Avoid the rollers being covered by the material, which will cause the rotation to be ineffective and prevent the leaked material from being caught between the roller and the tape.

along with

There are many reasons for deviations, which need to be handled differently according to different reasons.

First, adjust the supporting roller group

Damage and cause of rubber conveyor belt

1.Local wear (epidermal damage)

Fabric core conveyor belts and steel core conveyor belts are extremely prone to such damage. The main reason is that it is easy to jam large material blocks at the transfer place, material guide trough, invalid roller, etc. Once the conveyor belt is running, it will cause excessive local wear of the conveyor belt. In the coal loading and unloading system of Rizhao Port, cantilever belts such as stackers and reclaimers have occurred. The conveyor belt has been locally ground to 5 layers of canvas and the other parts are covered with rubber. The lower part is directly stuck on the belt, which causes all the steel wires to be worn at the skirts on both sides of the belt.

2.Partial fragmentation (through injury)

Both fabric core conveyor belts and steel core conveyor belts have such damage. Conveyor belts often contain larger stones and sharper material blocks when they are conveying materials. These material blocks are not sufficiently buffered at the transfer point, and they break the conveyor belt with a large impact to form a hole. If sharp objects such as iron crowbars are mixed in the material, it is easy to cut the conveyor belt and cause the belt to tear in a large area.

3. Damage to the glued part The glued part of the conveyor belt is formed by relapping and vulcanization when the tape is installed. If the joints are not handled properly, it will easily cause premature wear and tear of the joints. If it is not handled in time, the joints will be damaged and deteriorated at a faster rate, and it is easy to cause a band break accident.

4. Longitudinal cracks of steel wire conveyor belts. Steel wire conveyor belts often have longitudinal penetrating scratches, up to tens of meters or even hundreds of meters. Such damage is generally called longitudinal cracks. Most of the reasons are that the sharp tool is stuck in some places, such as the scraper cleaner, and the operator has not cleaned it off in time. After the belt is running, it causes a long distance of scratches and tears on the conveyor belt. ^[2]

Damage repair of rubber conveyor belt

During the use of the conveyor belt, damage is unavoidable, and there are many types of damage, such as: edge delamination, ulceration, defects and cracking; longitudinal tearing over long distances, deep scratches, holes, large-area wear, covering rubber Bulging or peeling, internal defects of joints, etc. Among them, longitudinal tearing is the most urgent, edge damage is the most common, the internal defects of the joint are difficult to avoid, and the service life after repair is the most concerned.

There are three main repair methods commonly used in conveyor belts:

Hot repair method: Usually use special repairer, vulcanizing machine and heat vulcanizing material suitable for conveyor belt, to repair the damaged part of the conveyor belt with equal intensity "no trace" repair. This repair can completely eliminate the damage of the conveyor belt and restore the original state. It is suitable for more important, long-distance, high-speed, high-volume transportation systems. Of course, completing such maintenance requires special equipment and professionals. It is the most reliable and ideal method for belt maintenance.

Cold repair method: Usually, cold adhesives for repairing conveyor belts, repair films and special tools must be used to fill the damaged parts of the conveyor belt in order to achieve the purpose of continuous operation. Obviously, this filling repair is an expedient. Therefore, its main purpose is: in the event of damage to the conveyor belt, timely cold repair can prevent the damaged part of the conveyor belt from continuing to expand and extend, thereby effectively protecting the core of the conveyor belt from damage in order to wait Time and opportunity required for repairs.

Mechanical repair method: Generally, clips, nails, connecting plates and screws or metal flexible wires and special appliances made of metal materials are used to fix or connect the damaged parts of the conveyor belt to achieve the purpose of maintaining operation. Even in many times today and on many occasions, this seemingly simple, rough, and even ugly treatment method can have an emergency function and do more with less.

To sum up: The most ideal and perfect repair of the conveyor belt must be strictly in accordance with the principle of "equal strength and same life", that is, the hot repair process and technology can be used. For other repair technologies, the real purpose is to obtain suitable repair time and opportunities. Therefore, cold repair and mechanical repair must not be used as the final treatment method for damage to the conveyor belt. It is convenient and simple to pursue maps, pursue low cost and short time, and the result is likely to be endless. We hope that everyone who manages and maintains the conveyor system must clearly understand and thoroughly understand the basic concepts of repairing the conveyor belt, and successfully and successfully complete the bonding and maintenance of the conveyor belt.