Powder batching system is composed of man-machine touch screen, plc, weighing transmitter, weighing sensor, weighing bin and controlled valve actuator. From the perspective of the whole process of production, it is a dynamic automatic weighing method, but the moment of measurement is static measurement, which ensures the accuracy of measurement control. The software of the upper computer is developed by our own company, and the customized software control efficiency will be higher.

The conveying and batching system is composed of iron powder pneumatic conveying system and strontium carbonate pneumatic conveying system, which is mainly composed of hopper scale and batching metering screw. According to the pre-set feeding amount, the batching-weighing controller and PLC start the batching-metering screw and add the iron powder or strontium carbonate into their respective hopper scales according to a certain feeding speed. After weighing, the material is distributed on the aggregate screw machine and then mixed in the mixing machine.

Hopper scales are used for weighing product streams for packaging, dosing, dispensing and yield monitoring in batches. The unit consists of a hopper, weighing cell and weighing instrument. It is an ideal automatic weighing device for the modernization of bulk materials, mainly divided into totalizing hopper scales and loss-in-weight feeding scales.

Hopper scales realize material level control by weighing, the material can be liquid or granular solid. Usually 3 or 4 force sensors are used. The weight of the material is converted into an electrical signal by the force sensors and amplified by the amplifier in the measuring circuit for display, recording and data processing. It has automatic zeroing and weighing data processing functions.

The positive pressure batching system first transfers different materials to the hopper of each weight loss scale by the conveying system, automatically corrects the deviation from the set point by adjusting the feeder speed, stops the screw conveyor and outlet gate valve immediately before reaching the target weight, and completes the discharge of a single weight loss scale. The rest weight loss scales complete the discharge successively in this process.

The positive pressure batching system uses the combination of negative pressure pneumatic conveying and weighing technology to complete the material conveying and batching. The system is composed of raw material feeding bin, conveying pipe, feeding valve group and suction feeding multi-component measuring scale. The material is sucked into the storage bin through vacuum negative pressure, and the material is measured while sucking. According to the flow of the material (powder), the arch breaking device can be added to assist the flow, and up to 20 pipes can be connected to the measuring scale at the same time for measurement. Solid material, durable; Meet a variety of material measurement, saving space and cost.

Plastic batching system can realize automatic weighing and feeding, flange connection to avoid dust leakage during mixing. The unique nitrogen supplement device can be used in chemical plants with high explosion-proof requirements. The vacuum pump creates vacuum through the separation container of the vacuum conveying equipment. The material is drawn from the feed port through the suction hose and suction port. The air is separated from the material in the filter bin of the separation vessel and the material is collected in the weighing bin.

Explosion-proof batching machine is a very important process in the chemical production process of electronic scales, mainly to complete the weighing and proportioning of the main material and various ingredients. After the batching of the former system will be formed by the base powder through the spiral scale and conveyor sent to the premixer and the raw materials mixed by the conveyor sent to the finished product warehouse. The post-batching realizes the measurement of the flow of the conveyed materials.

The dosage machine is mainly a weighing instrument, PLC as an auxiliary control system, computer human-machine interface to display the proportioning parameters (formula) and monitor and record the real-time data. In automatic control mode, by clicking the "Start" button of automatic dosage in the pre-dosage process screen or the "Start" button of the pre-dosage control cabinet, the weighing instrument opens the weighing valve of the electronic scale according to the set recipe. If the system detects that the dosage valve of a scale is not closed, an alarm occurs and the scale enters the pause state. Each scale has an advance quantity according to the weighing speed. When the control instrument detects that the weighing weight of the scale reaches the set value, the advance quantity will be subtracted and the control instrument will close the feeding valve. The amount of advance can be corrected manually or automatically, so that the control instrument can control the dosage scale to reach the set target value every time the dosage accuracy.