Environmental requirements for electronic belt scales (1) Belt scale equipment should be away from windy, rainy, and exposed environments (2) Belt scale equipment should be away from places with vibration sources, corrosive air, magnetic fields, and large motor equipment troubles Requirements for the sound card rack of the conveyor at the belt scale equipment: (1) The feeder at the weighing equipment location must not be flexible, such as joints or side beams, etc. that may cause the elasticity of the feeder measurement and verification part (2) ) The drag rollers and conveyor sound card frames in the entire weighing area should have sufficient bending stiffness so that the relative tensile strain between the drag rollers in the area does not exceed 0.4 mm (3) The feeder inclination angle of the equipment weighing body shall not exceed 10 8 degrees.
Belt scale equipment direction specifications (1) The belt scale should be installed in the straight section of the feeder (2) The equipment should be in a small position to modify the belt tension and tension of the conveyor, preferably at a location near the end of the equipment. .When the weighing body is installed at the rear end, the distance from the discharge point should be no less than 59 meters, and the distance between the material plate and the loading plate should not be less than 35 drag rollers. (3) When the weighing body must be installed near the concave belt, then It should be ensured that the weighing equipment is in the straight section of the conveyor and that there are at least four drag rollers in close contact with the belt at the front, rear and right sides of the scale at all discharge locations. (4) When the weighing body needs to be installed around a convex arc, it should be Make sure that the belt between the discharge point and the scale should not have an arc in the vertical direction. The arc section must be 6 meters away from the drag roller in the weighing section or 5 times the distance between the drag rollers. (5) When the equipment belt scale is When there is a mobile unloader on the feeding belt, the requirements of "(3)" should be followed, and also ensure that the center line of the scale coincides with the center line of the scale body when the belt is running continuously. (6) In order to ensure the accuracy of the weighing measurement, the center line of the scale body should be There should be only one discharging point. (7) In order to ensure the accuracy of measurement and verification, the amount of material transported by the feeder should be within the range of 20120% Qmax.
Belt scale equipment requirements for feeding belts (1) All belt conveyors with a length of more than 12 meters should be modified with stable pulling force or tensioning equipment (2) If the belt conveyor with a length of less than 12 meters is easily affected by the external environment or the conveyor If the upper load is unstable, the stable pulling force or tightening equipment should also be modified (3) The transmission belt runs in the longitudinal center of the feeder sound card frame, and there is no deviation. The requirements of the belt scale equipment on the feeding belt drag roller (1) Drag roller The axial runout of the roller, the drag height, and the tolerance of the groove angle should be within the allowable range of the national standard. (2) The original roller specifications of the rollers used in the measuring system and the transmission belt conveyor must be the same and the groove angles must be the same. ( 3) When using an electronic belt scale, the groove angle of the drag roller should be 20 degrees. Use a template to adjust the groove angle of the drag roller in the weighing area so that the gap does not exceed 0.5 mm. (4) For the center of the feeder belt The guided roller can be installed at a distance of 8 drag rollers from the weighing section.
