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What is the principle of the anti-burning characteristics of the conveyor belt?

Sep 02, 2019

      The existing conveyor belt is composed of a lower cover rubber layer, a skeleton layer, an upper cover rubber layer and a side glue, and the skeleton layer is a heat-resistant canvas material. This industrial type conveyor belt is only suitable for conveying non-high temperature materials, but in steel and cement. , chemical industry and other industries, mainly used to transport sinter, coke, cement clinker, lime and other materials, due to the higher temperature of these materials, such as sinter material temperature is generally between 500 ° C -800 ° C, and some even up to thousands Degree, this rubber conveyor belt can not withstand high temperature burning for a long time, there will be a large amount of surface loss due to burnt or burning, heat is transferred from the damaged surface inward, resulting in destruction of the skeleton material, reducing the tape The strength affects the life of the tape, reduces the efficiency of use, and increases the cost of use.


      Through technical improvement, the product performance is innovative. The industrial belt is designed to be composed of a bottom cover rubber layer, at least one skeleton layer and an upper cover layer, and both sides of the skeleton layer are integrated with the upper and lower cover rubber layers. The edge of the structure, the main feature of this structure is that the skeleton layer and the upper cover rubber which has been provided with the anti-burning layer are also provided with a high-strength heat-insulating layer of glass fiber or polyurethane material, which is resistant to burning. The layer is styrene-butadiene material, the thickness is 2-6 mm, and the skeleton layer of heat-resistant glass fiber canvas material is 1-6 layers, and each layer is bonded with high temperature styrene-butadiene rubber. Through the overall arrangement of the above structure, a very obvious characteristic application effect can be achieved:

     First, the contact with the hot-burning layer can rapidly form a microporous carbonized layer, and the heat is transmitted to the inside of the conveyor belt to protect the skeleton layer. The carbonized layer has flame retardant and wear resistance. .

     Second, the skeleton material is selected to have small loss of strength at high temperature, and the inorganic modified material which is not deformed, such as modified glass fiber canvas, has a novel canvas structure which not only ensures the required strength of the belt but also improves the flexural resistance of the canvas. And the adhesion of the rubber to the skeleton material.

     Thirdly, the skeleton layer is bonded by high temperature resistant glue, which solves the problem of low adhesion strength between layers under high temperature state, and ensures that the adhesive strength between the strip layers is stable at 160 ° C, which is the same as the ordinary heat resistant conveyor belt. More than twice the bond strength between the lower layers.

     Through the above structure innovation, the industrial heavy-duty conveyor belt manufacturer ensures the normal use of the transportation tape under high temperature conditions and prolongs the service life. It can be applied to various high-temperature materials with a conveying temperature of 200-600 °C and an instantaneous temperature of 800 °C. In working condition, its excellent burning resistance is 3-4 times of the service life of ordinary high temperature resistant belt under the same use environment. This anti-burning conveyor belt can be applied to sinter, coke, etc. due to its good characteristics. High-quality transfer of high-temperature materials such as cement clinker and lime.