Installation requirements for belt scales

The batching belt scale is used for material measurement and flow control. In order to ensure the accuracy of its measurement, the belt scale is required to run smoothly and without vibration, and the feeding components are flexible. Simultaneous belt balance

In the feeding uniform load, no bias load phenomenon. Therefore, the installation of batching belt scales and metering belt scales and metering components is required as follows:

Environmental requirements for belt scales

The belt scale said that the installation should be away from the wind, rainy days, exposure to the environment

The belt scale should be far away from the vibration source, corrosive gas, strong magnetic field and large motor equipment interference place

Belt fixation requirements:

The belt scale shall not have any relationship with the main belt when it is installed.

The belt scale should be installed in an independent installation bracket or platform, the installation bracket or platform must be stable and level.

The belt scale installation should ensure the horizontal and longitudinal level.

The belt scale motor must be installed on the same platform with the belt scale body, it is strictly prohibited to use an independent installation bracket to drive the motor, the installation should ensure that the driving motor and the belt scale active drum drive shaft keep

Good coaxiality.

⑸: When the belt scale adopts the turbine vortex rod reducer, the vortex rod is required to be installed horizontally and at the upper end of the installation.

The requirements of belt scale for feeding equipment:

(1) When the disc feeding mode is adopted, the receiving device should be installed in the disc discharging part, and the discharging nozzle and installation of the receiving device should be equivalent to the requirements of the dragging type feeding nozzle

(2) when the use of drag type feeding, the feeding nozzle requirements at the height of the material can be adjusted at the same time to adjust the height should meet the requirements of the accumulation of material flow. At the same time, the discharging surface of the discharge nozzle should be made into an inclined plane along the direction of the material flow

Shape to facilitate the removal of large materials.

(3) when the use of drag type feeding, the upper discharge nozzle should be designed and installed gate valve, in order to facilitate the maintenance and debugging of belt balance. In order to ensure the stability and precision of belt weighing operation, the gate is required

The valve adopts split double gate, and the mesh line of the gate is consistent with the direction of the belt. The opening of the gate is not less than the effective discharge section of the discharge nozzle.

(4) The upper inlet of the silo should be set up feeding grid plate or grid, the unit feeding caliber is not greater than the discharging equipment under the working flow of the discharging nozzle discharging height, so as to avoid the occurrence of material block blocking the discharging nozzle.

(5) When the equipment working environment temperature is below the freezing point for a long time, if the material moisture content is enough to freeze the material into blocks, heating measures should be adopted in the silo.

The spatial position of belt scales

Belt scales should meet the following space position requirements during installation:

The longitudinal center of the material section of the belt balance should coincide with the center line of the material flow under the silo, and the natural accumulation of the material flow should be evenly distributed on both sides of the center line of the material section of the belt balance, and according to the direction of the material flow from the material section before and after the distance of each keep 5cm, the material flow accumulation height is not overflowing.

(2) When the disc feeding mode is adopted, the disc unloading drop is not more than 200mm, and the disc is not in contact with any part of the weighing body. When the belt scale does not use material receiving equipment, it should be made on the spot

Material chute (the chute shall not be in contact with belt scale during installation). When feeding the disk, the material flow is required to be concentrated. The cross section of the material flow along the feeding direction of the belt balance is no more than 200mm. The distance between the natural accumulation front of the material flow on the belt balance and the front of the receiving section should be kept 5cm

(3) when the use of drag feeding mode, the feeding nozzle shall not be in contact with the belt, the lower end of the belt to retain 5mm or 2~3 times the normal diameter of the material distance. At the same time, the distance between the edge of the naturally accumulated material and both sides of the belt edge is less than 3cm. When the skirt belt is used, the intersection line between the inclined plane of the naturally accumulated material and the skirt edge should be at least 1cm away from the skirt edge

The height below the belt scale is not less than 300mm from the main belt, and the feeding chute is installed to ensure that the material flow is evenly distributed in the center of the main belt.

(5) The belt scale installation is suitable for reserving appropriate maintenance space, in order to facilitate the later operation.