Self-sweeping blending machine

Abstract

The invention relates to a self-sweeping blending machine which comprises a frame and a mixing chamber, wherein a rotating shaft is arranged at the center of the mixing chamber; a rotating driving device is connected with the rotating shaft; a stirring blade is connected with the rotating shaft; the rotating driving device is fixedly connected with a connecting plate; a lifting driving mechanism which is along vertical direction is connected with the connecting plate; two rows of paddles are arranged on the two sides of the rotating shaft along the circumferential direction at 180-degree interval; gaps are arranged between radial external ends of the paddles and the inner wall of the mixing chamber; an aperture, through which the paddles can pass, is arranged on an upper cover of the mixing chamber; when the rotating shaft is lifted under the driving of the lifting driving mechanism, the paddles pass through the aperture; a sensor is arranged above the rotating shaft on the upper part of the mixing chamber; a sensing switch which is matched with the sensor is arranged on the frame. The self-sweeping blending machine can effectively solve the problem of cross contamination of the material samples at present.

Description

technical field [0001] The invention relates to a mixer, in particular to a self-cleaning mixer, which belongs to the technical field of oxygen-making equipment. Background technique [0002] In the sampling and oxygen production of solid samples such as coal and ore, in order to obtain objective and comprehensive results, it is often necessary to mix the samples taken. At present, this mixing is carried out in a mixer. The common mixer is Driven by a driving motor, a stirring shaft drives multiple stirring blades to rotate to fully mix the powder samples in the mixing chamber. Although this kind of mixer achieves material sample mixing to a certain extent, it has some disadvantages in practical applications. The following defects: First, the current mixers often have to mix samples from different batches or suppliers successively during use. During the mixing process, the samples are easy to adhere to the mixing blade and the inner wall of the mixing chamber. Cross-contami...

AI Technical Summary

Problems solved by technology

[0005] The positive and beneficial technical effects of the present invention are: the word cleaning of this mixer is embodied in two aspects, one is that after the mixing is completed, the gear rack is driven up to make the paddle and the material adhered on the rotating shaft pass through the gap. hang up; the second is that the outer ends of the three paddles of the device are fully covered at the height of the mixer, and the outer ends of the paddles effectively clean the inner wall of the mixer during the mixing process. This mixer effectively solves the problem of The current problem of cross-contamination of material samples

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