Weighing and feeding device and material processing system

Abstract

The invention discloses a weighing and feeding device. The device comprises fixing supports, a material bin installed on the fixing supports, feeding devices installed on the fixing supports, an adjustment valve assembly and a weighing device. The bottom of the material bin is provided with a feeding port. The feeding devices are located below the feeding port and can receive materials falling down from the feeding port. The adjustment valve assembly is arranged on the material bin and can adjust the opening degree of the feeding port. The weighing device is arranged on the material bin and can detect the weight change of the material bin and contents thereof. In this way, in the process of conveying the materials, the quantity of the materials is adjusted when the conveying quantity of the materials reaches to a certain degree, which is beneficial to timely conveying in this stage, thereby improving the metering precision. Meanwhile the invention discloses a material processing systembased on the weighing and feeding device, such as a system for extracting aggregate by recycling waste concrete.

Description

technical field [0001] The invention relates to the field of material conveying and processing, in particular to a weighing feeding device and a material processing system. Background technique [0002] At present, when carrying out quantitative transportation of solid bulk materials and solid granular materials, corresponding silos are often configured to store the materials to be transported in the silos. When quantitatively transporting materials to designated equipment or locations, the materials need to be sent to Enter the metering bin equipped at the same time for weighing, and the weighed material is then conveyed by a feeding device such as a vibrating feeder. [0003] In the process of realizing the present invention, the inventors found that there are at least the following problems in this transportation method: an additional metering bin needs to be equipped, thereby placing additional requirements on the space occupied by the equipment in the transportation sit...

AI Technical Summary

Problems solved by technology

[0003] In the process of realizing the present invention, the inventors found that there are at least the following problems in this transportation method: an additional metering bin needs to be equipped, thereby placing additional requirements on the space occupied by the equipment in the transportation site

Moreover, it is necessary to reserve time for weighing during the material conveying process. During the weighing process, the material stays in the weighing bin, which will lead to a decrease in production efficiency.

In addition, in order to convey materials quickly, the material in the silo is fed by its own weight and combined with the vibrating feeder. After the feeding is completed, there will be a stage of resonance due to the shutdown of the vibrating feeder, which will cause overflow. , which will cause unwanted extra feeding and affect the accuracy of quantitative delivery of materials

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