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Bin weighing system

The weighing bin device is a complete set of automatic equipment for dynamic weighing and batching control at the same time. The weight and flow of the material loaded to the weighing and batching truck are controlled by the human configuration monitoring system and PLC program, so as to achieve accurate measurement and batching. As a dynamic continuous metering and batching automatic control device, it can also provide accurate measurement data and control means for the production control and management of various industrial sites.

Product details
020-34563445

The Weighing system of the silo is composed of the silo body and the silo cover, as well as the fixed supports. All of these are made of ordinary steel plates and welded together. The fixed supports are equipped with a weighing module. Besides measuring the materials, the weighing module can also perform initial calibration of the weighing body of the material conveying equipment during the initial stage. The conical part of the silo body is fixed on the middle outer side with a connecting hanger, which is suspended above the ground. The material conveying equipment is installed below the hanger, and the hanger is suspended. The main working process of the weighing silo with a hanger: Materials fall into the silo through the feeding port on the silo cover and then enter the screw conveyor installed on the hanger through the discharge port and the rod valve. They are then transmitted by the screw conveyor to the next production stage. This equipment's hanger is higher than the ground. This installation method enables the material conveying equipment to be detached from the ground, and the silo body is supported on the platform by the weighing module. The weighing silo with a hanger has changed the traditional weighing method of placing the weighing equipment on the ground. It connects the conveying equipment and the silo into a whole through the hanger. This installation method enables the weighing module of the silo to measure the weight of this entire system, effectively solving the problem of fluctuation in the weighing module of the silo due to irregular discharging during the discharging process. The material conveying equipment is detached from the ground, and the silo body is installed on the working platform as a whole by the sensor support and is fixed by the weighing sensor support. There will be no horizontal displacement, so the gravity sensor on the sensor support only receives the force in the vertical direction. Therefore, the material measurement is accurate. 

The batching control system is composed of a programmable controller, solenoid valves, regulating valves, etc. It uses the current signal output by the PLC to control the frequency output by the frequency converter, thereby changing the speed of the motor and achieving the purpose of controlling the feeding speed of the electric feeding device. In industrial batching, one of the steps is the uniform mixing of liquid and powder. Powder is manually added to the storage device, and the feeding speed is adjusted by controlling the screw feeding device. Below the storage device, there is a weighing device. When the weighing set value is reached, the electric screw feeding device automatically stops working. The weighing module detects the flow rate of the liquid in the pipeline and converts it into an electrical signal through a transducer. The programmable controller PLC collects the size of the flow signal in real time and changes the feeding speed of the electric screw feeding device in real time, thereby ensuring the quality of dynamic liquid batching, with high batching accuracy and uniform batching. Liquid flow control adopts analog control, and the start and stop of the liquid pump are controlled by a direct contactor method. It is controlled through the I/O connection of the programmable controller. The feeding system adopts closed-loop control, with high feeding accuracy. The feeding control system automatically calculates the feeding quantity parameters based on the flow size, and the PLC system controls the frequency of the frequency converter to control the feeding motor output volume. After comparing the actual feeding volume signal value with the set value through the weighing device, the system control quantity is output to meet the requirements of high-precision feeding. 

After the automatic Batching system is powered on, the screw drive motor starts to rotate. The microprocessor controls the motor speed based on the current operation. The materials in the hopper fall into the discharge area and are transported by the screw to the weighing area. The screw scale weighs the materials on the screw. The weighing module outputs a voltage signal based on the magnitude of the force received, which is amplified by the transmitter and output as a measurement level signal proportional to the weight of the materials. This signal is sent to the upper computer, where it is sampled and converted into a flow signal. The current flow value is displayed on the upper computer. At the same time, this flow signal is sent to the PIC interface, compared with the various batching set values of the upper computer, and then a regulation operation is performed. The control quantity is sent to the frequency converter to change the output value of the frequency converter, thereby changing the rotational speed of the drive motor. Adjust the given quantity to make it equal to the set value, completing the automatic batching process. Through the field bus, the field instruments, control computers, frequency converters and other intelligent and fast-processing equipment with higher intelligence are connected. The main material and auxiliary material are mixed in a certain proportion, and the screw scale completes the measurement of the materials conveyed by the screw conveyor. It mainly undertakes real-time control of the conveying equipment and weighing process, and completes the detection, display and alarm of system faults, as well as outputting signals to the frequency converter to regulate the rotation speed of the screw conveyor.

Application of liquid pumping and mixing batching system
The batching system adopts dual CPU to form a redundant system, and the STEP7MicroWin V4.0SP6 programming software provided by Siemens is used as the man-machine interface to write debugging programs and download programs. The PC and PLC experimental machine are connected by a PC/PPI cable for communication, and the corresponding parameters are set.
Powder Dosing System Design
The automatic dosage system consists of an industrial grade control computer, programmable controllers, and electrical control boxes, and is designed to meet the needs of a maximum number of silos and platform scales for mixing, weighing, and mixing control.
Screw dosage system technology application
Screw automatic dosage system is the ideal equipment for continuous dosage and measurement of bulk materials, which can set high, middle and low feeding, and then control the feeding speed of screw feeder, so as to achieve the purpose of accurate dosage. According to the actual process of batching process, it reflects the operation status of feeding, batching, feeding and related equipment in the form of dynamic screen.
Automatic Powder Batching System
Batching system in the field of powder processing and treatment, the leading technology of powder processing equipment absorbed and optimized in the weighing and mixing machine in accordance with the production instructions and formulas, a variety of materials will be placed, transported to the set station, using automatic walking weighing mechanism, a variety of materials accurately and proportionally added to the barrel.
Reactor feeding and dosage system realization
Reaction kettle feeding dosage system through the explosion-proof electronic weighbridge direct collection of weight signals, automatic control of weighing, the operator through the keyboard or the mouse in the upper computer human-machine interface (HMI) on the input charging information (charging type, weight, etc.), monitoring the whole process of charging control, printing the results of the charging and production reports, to achieve the process of charging the measurement and control of the integration of the management, is not lost as a practicable and effective method.
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