Closed automatic agitator for fire assaying

Abstract

The invention discloses a closed automatic agitator for fire assaying, which comprises a support, a lower box, and an upper box; the lower box can rotate relative to the support by means of a first rotary shaft and a second rotary shaft fixed on both sides, one side of the lower box is hinged with the upper box through hinges, and the other side is connected through a locking device; the upper boxcomprises an elastic layer for sealing the openings of crucibles, a hard supporting plate for fixing the elastic layer, and an elastic limiter for controlling the supporting plate to get close to oraway from the internal bottom surface of the upper box within a limited distance, and the supporting plate can be in contact with the bottom of the upper box through inflatable and deflatable air bagswith valves; and the interior of the lower box is provided with crucible grooves for the placement of the crucibles. The advantages are as follows: by means of the air bags and the elastic layer embedded in the upper box, the crucibles can be sufficiently squeezed and sealed, manual mechanical squeezing for fixing is avoided, so that manpower is saved, and the key is that squeezing force which ismore uniform and more convenient to control can be applied on the elastic layer through the function of the air bags.

Description

technical field [0001] The invention relates to the field of fire testing gold, in particular to a closed automatic sample mixing machine for fire testing gold. Background technique [0002] As a classic method, the determination of precious metals such as gold and silver by fire assay gold method has continued to this day, and it still plays an irreplaceable role in modern chemical analysis, especially for the determination of gold components in high-content gold raw materials or pure gold. It is beyond the reach of other direct determination methods. In the arbitration analysis of gold and silver content, fire test gold analysis can give convincing results for all parties in dispute. With the development of science and technology, there are more and more new technologies for analyzing gold and silver, and the method of fire test gold method combined with advanced instruments to determine the content of precious metals will play a greater role. However, compared with othe...

AI Technical Summary

Problems solved by technology

However, when this technical solution is implemented, the following technical problems still exist: since each size of the crucible is not the same and there will always be different angles of inclination when placed, after the upper cover is closed, use the threaded crucible The fastening device needs to be tightened to a certain extent to have enough pressure to seal the opening of the crucible

There are two disadvantages in the above operation: 1. After repeated use, the screw will be fatigued and damaged and needs to be repaired

2. When the operator is using it, it takes a long time to tighten it, which consumes physical strength and reduces the actual work efficiency; therefore, it is inconvenient to strictly control and the operability is poor for practical use.

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