A pellet metering device

Abstract

The invention relates to a granular material metering device. It includes a box body and a roller set in the box body, the box body is provided with a material inlet and a material outlet, the roller body includes a roller body and a drive shaft, and the roller body is installed on the drive shaft through the drive shaft. on the box body; the roller body includes two side plates and a squirrel-cage frame arranged on the two side plates, a groove drum is arranged on the squirrel-cage frame, and a metering tube is arranged on the outside of the groove drum The groove, the groove cylinder is made of microporous air-permeable material; the two side plates and the groove cylinder form a sealed cavity; one end of the drive shaft is provided with a deceleration motor, the other end is provided with a rotary joint, and the drive shaft is equipped with Blind hole, the drive shaft is provided with an air passage through which the blind hole communicates with the cavity, the rotary joint includes a fixed end and a hollow rotary shaft, the hollow rotary shaft is connected with the drive shaft, and the rotary joint is connected to the The blind holes are connected; the advantage is that it can fully ensure that the metering tank does not stick to the material, thereby ensuring the accuracy of the metering.

Description

technical field [0001] The invention relates to the technical field of granular material metering and batching, in particular to a granular material metering device. Background technique [0002] The measurement of granular materials is used in many industries, such as grain and oil, brewing, chemical industry, fertilizer and other production and processing industries. It is necessary to accurately measure granular materials. Common such granular materials generally have a certain particle size, such as a particle size of 0.1 ~3 mm. The measurement technology of granular materials is mostly used in the packaging process. Generally, a given amount of material needs to be output, and a large number of repeated measurements are required. Under such working conditions, it is better to use a standard volume for measurement. The current metering form mostly uses metering scales. For example, in the equipment such as blending fertilizers and fertilizers, the granular materials are...

AI Technical Summary

Problems solved by technology

Theoretically, the metering sheave will completely digitize the metering, which should be more accurate than the general metering scale, but in fact, there are still the following problems in the metering through the conveying sheave: First, if the materials in the metering tank cannot be completely discharged every revolution, Random accumulation will occur, which will affect the measurement accuracy; second, most materials usually have strong hygroscopicity and contain high moisture content, usually at 3% to 8% moisture content, such as fertilizers, etc., which will easily cause the measurement tank to be damp , and then aggravate the sticky material. As a result, the measurement error is too large, or even impossible to measure, which is far from the theoretical accurate measurement; this is also the biggest obstacle that the current measurement sheaves cannot be used for accurate measurement.

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