Time-sharing automatic sampling device for powder production and control method

Abstract

The invention relates to a time-sharing automatic sampling device for powder production, comprising an air inclined slot and a sampling device which is connected below the air inclined slot, wherein the sampling device comprises a vertical pipeline and a transverse pipeline communicated with the vertical pipeline; a sampling bucket is arranged below the vertical pipeline; a first solenoid valve and a third solenoid valve, which are connected with time relays, are respectively arranged at the upper and lower ends of the vertical pipeline; the transverse pipeline is provided with a second solenoid valve which is connected with a time relay; and all the time relays are connected with an PLC (Programmable Logic Controller) electric control box. With the adoption of the device, the manual operation can be completely replaced, the sampling automation is realized and the manual work intensity is greatly reduced. The invention further relates to a control method of the time-sharing automatic sampling device for the powder production. With the adoption of the control method, the collecting time of samples is prolonged, so that the collecting frequency of the samples is increased; and therefore, the samples collected in the whole collection period are more representative and the reflected quality data is more accurate.

Description

technical field [0001] The invention relates to a time-sharing automatic sampling device for powder production, in particular to a time-sharing automatic sampling device for quality inspection in the production process of a slag vertical mill. The invention also relates to a control method of the automatic sampling device. Background technique [0002] At present, the production equipment of large mineral powder production enterprises basically adopts the relatively advanced vertical mill production line. Regardless of whether it is imported or domestic vertical mill equipment, the core production process is basically the same. The main production process is: feeding, grinding, collection, storage, delivery. In the production process of the vertical mill, its terminal product is slag powder, and its product form is powdery material. In order to control the overall quality level of the product, it is necessary to pre-set the quality control range of the product during the ...

AI Technical Summary

Problems solved by technology

At the present stage, the sampling operation of the vertical mill production line is collected manually to the site. The collected samples are only instantaneous samples within a collection cycle, not samples in the entire production cycle. Therefore, the quality data of sample inspection and analysis are not representative. Can not accurately reflect the average quality of all materials in the production cycle

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