Introduction:
Weigh belt feeders are commonly used in various industries to control the flow rate of bulk materials by weight. They are designed to provide accurate and consistent feeding of materials into a process.
Weigh belt feeder is a type of conveyor belt equipped with a weighing system. It measures the weight of the material passing over the belt and provides a continuous feedback signal to the control system, allowing precise control of the feed rate. This technology is widely used in industries that handle bulk materials, such as mining, cement, food processing, and agriculture.
Installation:
Weigh belt feeders are installed on a support frame and consist of a conveyor belt equipped with a weighing system. The feeder is typically placed above a receiving hopper or process equipment to deposit the material accurately.
Work Principle:
The working principle of a weigh belt feeder involves the following steps:
Material is loaded onto the feeder belt from a hopper.
The material travels along the belt, and as it passes over the weighing system, the load cells measure the weight.
The weight signal is transmitted to the control system.
The control system compares the measured weight with the desired setpoint and adjusts the belt speed accordingly.
The belt speed regulates the flow rate, ensuring that the material is fed at the desired rate.
Structure:
Conveyor Belt: Carries the material and passes over the weighing system.
Support Structure: Provides stability and houses the weighing system.
Weighing System: Typically includes load cells that measure the weight of the material.
Drive System: Consists of a motor and gearbox that drives the conveyor belt.
Control System: Receives the weight signal and adjusts the belt speed to maintain the desired feed rate.
Hopper: Where the material is loaded onto the feeder.
Operation:
The operation of a weigh belt feeder involves the following steps: a. The material to be conveyed is deposited onto the belt. b. The belt moves at a constant speed. c. The weight of the material on the belt is continuously measured. d. The control system adjusts the belt speed to maintain the desired flow rate. e. Material is discharged from the feeder onto the receiving equipment or process.
Technical specifications:
|
Model No. |
Belt width (mm) |
Belt speed |
Accuracy |
Motor power (kw) |
Capacity (m³/h) |
Voltage |
Weight (kg) |
|
PT-500 |
500 |
0.008~0.114 |
±1% |
0.75 |
28 |
220V±15%,50Hz |
500 |
|
PT-650 |
650 |
0.008~0.139 |
±1% |
0.75 |
40 |
220V±15%,50Hz |
550 |
|
PT-800 |
800 |
0.008~0.139 |
±1% |
1.1 |
60 |
220V±15%,50Hz |
700 |
|
PT-1000 |
1000 |
0.008~0.139 |
±1% |
1.5 |
85 |
220V±15%,50Hz |
850 |
|
PT-1200 |
1200 |
0.008~0.139 |
±1% |
2.2 |
110 |
220V±15%,50Hz |
1000 |
Industry Applications:
Weigh belt feeders find applications in various industries, including:
Mining: Used to control the flow of ore, coal, or other minerals onto conveyors or into processing equipment.
Cement: Ensure accurate feeding of raw materials, such as limestone, clay, and additives, into the production process.
Food Processing: Used in applications like batching, blending, and proportioning of ingredients in food production.
Agriculture: Help control the feeding of granular or powdered materials in farming operations, such as animal feed production.
Chemical and Plastics: Used for precise metering of materials in the production of chemicals, plastics, and other materials.
Benefits in Application Industries:
The use of weigh belt feeders offers several benefits in application industries, including:
Accuracy: Provides precise control over the feed rate, ensuring consistent and accurate material delivery.
Efficiency: Optimizes the use of materials by delivering them in the required quantities, reducing waste and improving process efficiency.
Automation: Allows for integration with control systems, enabling automated operation and reducing the need for manual intervention.
Process Control: Helps maintain a stable and controlled process by adjusting the feed rate in real-time, improving product quality.
Flexibility: Can handle a wide range of bulk materials.
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