The weighing and feeding system consists of conveying and feeding equipment, storage equipment, automatic Weighing system, dust removal system and PLC electrical control system. Feeding machine is an essential automation equipment in ensuring the stability of industrial production operation and product quality, eliminating the traditional multi-manual work, improving the measurement accuracy of formula weighing, and realizing the batch production of automatic feeding and accurate dosing for a wide range of material varieties. Automatic weighing and feeding machine has been applied in various fields such as lithium, refractory, building materials, cement, ceramics, steel, non-ferrous metals, glass, petrochemical, machinery, boiler, light industry, electric power, military industry and so on.

The feeding machine is suitable for the site without continuous batching requirements, these sites do not require high time for batching, can be batch batching, batch allows the existence of a certain time interval, such as the blast furnace trough feeding before and after the two batches of time interval of 3 ~ 5min, each batch of material from a variety of materials, the ratio of materials accounted for according to the requirements of the process over a period of time is relatively fixed, the proportion of composition of a single material is not stringent, as long as the proportion of material composition can meet the process requirements in more than one batch can be. The proportion of material composition in more batches can meet the process requirements.

Powder Feeder various materials are stored in different silos, silo feeding is generally used in the form of electric vibration feeding, screw feeding or gated feeding. Measurement is generally used to measure the bin, and is equipped with a pressure or pull type gravity sensor for force conversion, the signal is amplified by the secondary instrumentation access to PLC or DCS to complete the measurement. In some of the application occasions of wide time requirements, can use a measuring trolley for unified measurement, measuring trolley running along the track, positioned in turn to the bin under the proportion of material dosing, the amount of various materials dosed using the method of calculation of the difference between the subtraction. There is also a single fixed measuring bin mode, the bins are distributed in a ring around a measuring bin, the measurement of each material also adopts the subtraction method, the material from the chute or belt conveyor in order to proportionally add to the measuring bin.

There are advantages and disadvantages between separate metering of powder batching machine and checking method of metering. Separate measurement can be based on the weight and volume of the material added each time to design the appropriate Electronic scale / weighing bin and weighing instrument, can improve the accuracy of measurement, especially for small proportion of materials, but the measurement of the bin and measurement equipment multiplied, the cost is higher. Reduced difference method of measurement using a measuring bin or measuring trolley, less investment in measuring equipment, and because of the same measuring equipment, regardless of the measurement error, but can ensure that the material is proportional to the dosing, but for a small proportion of material dosing is difficult to ensure its accuracy.

Powder batching measured material after the collection, generally form a layer or segment distribution, through the conveying equipment (such as belts or trolleys) to the receiving port, into the next process, that is, the completion of a batch of material with the addition. As the material measurement, conveying, joining and other aspects of the time can be overlapped, in the control process can be used in parallel, in order to save the feeding time, improve the feeding speed.

Components are optional:

Feeding system: pneumatic conveying (positive and negative pressure), mechanical conveying (bucket lift, belt, screw, pipe chain, etc.).

Weighing systems: static metering (gross weight, net weight, with mobile trolley), dynamic metering (self-gravitating flow scales, belt flow scales, spiral flow scales, etc.).

Weighing and mixing system: continuous mixer, batch mixer.

Packaging system: valve bag packaging machine, open bag packaging machine.

Palletizing systems: articulated robot palletizing, mechanical palletizing (high and low level).

Dedusting system: pulse bag dust collector, plastic burnt plate dust collector, cartridge dust collector and so on.

Dosing control system: industrial control machine + PLC + printing.

Functional Features

Weighing mixer is suitable for tons of bags, small bags of automatic feeding, to achieve dust-free feeding feeding;

The unique arch-breaking mechanism of the storage bin has the function of arch-breaking, which ensures good flow of materials;

The metering system is controlled by a variety of feeding mechanisms to ensure high speed and high precision;

Mixing and weighing systems are available in continuous mixing and batch mixing, with a variety of mixing forms to ensure high uniformity at high speeds;

The packaging system can be weighed and measured automatically and is extremely easy to operate;

The palletizing system can realize automatic stacking operation and greatly reduce the labor intensity of workers;

The dust removal system can effectively suppress dust and ensure a good working environment during feeding, measuring, mixing and packaging operation;

Adopt computer full-automatic control, no need to guard high precision, speed, control system is convenient and reliable, display intuitive, equipped with fault alarm system, can be equipped with a printer, print class output and related data.