Quantitative feeding system

Abstract

The invention discloses a quantitative feeding system. The quantitative feeding system comprises a vibration feeding device, a weighing device and a conveying device. The vibration feeding device comprises a charging barrel, a screening disc and a vibration device. The charging barrel comprises a feeding port, a barrel body and a discharging port. The screening disc is arranged at the dischargingport of the charging barrel. A plurality of material leaking holes are formed in the screening disc. The screening disc is arranged on the vibration device and arranged at the discharging port of thecharging barrel. The weighing device is arranged below the charging barrel and can measure weight change of the charging barrel and transmit detection signals to the vibration device. The vibration device regulates and controls the vibration frequency of the vibration device according to the detection signals. The conveying device is arranged below the weighing device. According to the quantitative feeding system, a feeding amount can be adjusted in real time, the feeding amount of a feeding mechanism is dynamically adjusted under the condition that the constant conveying speed is guaranteed,it is guaranteed that the feeding amount of the feeding mechanism is constant, and therefore, quantitative feeding is achieved.

Description

technical field [0001] The invention relates to the field of industrial material supply, in particular to a quantitative feeding system. Background technique [0002] Quantitative feeder is an ideal equipment for continuous weighing and feeding of bulk materials. It is an equipment integrating conveying, weighing measurement and quantitative control. It is famous for its stability, reliability, high cost performance and durability. It can adapt to various production environments, continuously feed and measure various block, granular materials (such as limestone, iron powder, clay) and powdery materials (such as fly ash, cement), etc., and is suitable for various industrial sites. Control and management provide accurate measurement data. Widely used in building materials, metallurgy, electric power, chemical industry, coal, coking, mining, tobacco, food, environmental protection, ports and other industries. [0003] At present, the powder quantitative feeding system in the ...

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Problems solved by technology

[0003] At present, the powder quantitative feeding system in the industry generally realizes the quantitative delivery of powder by controlling the total amount of powder delivered within the set time during use. During the feeding process of the feeding mechanism, the powder mass flowmeter Online measurement of the total flow of the powder within the set time, for example, in the prior art, a quantitative feeding system provided by Chinese Patent Publication No. CN206939791U, including a feeding device, a belt scale, a conveyor belt conveyor, and a feeding device Including gate, feed pipe / belt scale feed hopper; belt scale includes belt, roller, rack, motor, weighing mechanism, speed sensor, feedback controller. The belt scale is installed on the belt scale mounting bracket; the conveyor belt The machine includes a conveyor belt and a conveyor belt rack; the system can only control the speed of the belt scale to keep the feeding rate at a constant level to achieve quantitative feeding; using this method often results in inconsistent feeding within the set time. In the case of uniformity, the feeding amount of the feeding mechanism cannot be dynamically adjusted to control the instantaneous feeding amount of the feeding mechanism. The current powder quantitative feeding system is not accurate, the production cost is high, and the product quality is not high.

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