Belt conveyor is a kind of conveying machinery which is supported by upper lower rollers as load-bearing components traction components. It forms a closed loop around the head tail rollers. It transfers power by means of friction between driving roller conveyor belt to realize material conveying. In order to make the conveyor belt have enough tension, ensure that there is no slippage between the conveyor belt the driving drum, limit the sag of the conveyor belt between the idlers, so as to make the conveyor run normally, it is necessary to use the tension device. There are screw type, heavy hammer car type, vertical heavy hammer type fixed winch type. The tensioning device should be arranged at the place the belt tension is small easy to arrange maintain.

1、 Types applicable conditions of belt conveyor:

According to different traction modes, belt conveyor can be divided into drum driven wire rope driven. Generally, the drum drive type is used in the mining area of the mine, the drum drive type is also used in the main roadway, but the steel wire rope traction type is also used. The steel wire rope traction type is generally used in the belt transportation of the main shaft.

Belt conveyor can be used for both horizontal inclined transportation. When it is used for inclined transportation, the inclination angle is limited. Generally, the inclination angle of upward transportation is more than 18 degrees, that of downward transportation is more than 15 degrees. In order to reduce the serious wear of conveyor belt, it is suitable for belt conveyor to transport goods with edges corners.

2、 Working mode of belt conveyor:

The line friction drive type transfers the driving force through the friction between the conveyor belts. Similar to the transmission of driving force by the transmission drum, the ability of transmission of driving force depends on the ability of friction between the conveyor belt the conveyor belt to transmit the driving wheel the driving force provided by the driving device. Therefore, the line friction can transfer a larger driving force when there is material, the transmission driving capacity will be reduced when there is no material. When the actual conveyor is running, the transmission driving capacity of line friction the distribution of material on the conveyor may appear.