Thermal weight loss automatic detection device and system

Abstract

The invention provides an automatic thermal weight loss detection device and system, and the device comprises a crucible which comprises a crucible cover and a crucible seat, and the crucible cover comprises a cover body and two limiting protrusions protruding outwards from the two sides of the cover body; the interior of the crucible seat is used for containing a sample to be detected, the upper part of the crucible seat is matched with the crucible cover, and at least two similar G-shaped sliding chutes matched with the limiting bulges are formed in the upper part of the crucible seat; the supporting piece comprises a fixed seat, a long supporting column which is arranged on the fixed seat, is hollow inside and is provided with vent holes in the side wall, and a limiting claw which is arranged at the top of the long supporting column, is matched with the crucible and is used for limiting the crucible suspension above the balance weighing disc and in the central area of the long supporting column; the limiting claw comprises a limiting seat and a plurality of limiting columns, the limiting seat corresponds to the bottom of the crucible, the corresponding area of the limiting seat is hollowed out, the limiting columns are arranged on the limiting seat at intervals and define a restraining space for restraining the position of the crucible, and the interval areas between the limiting columns correspond to the edges of the main body part of the crucible seat; a crucible connecting piece; a telescopic driving member; a rotating member; and a side pressure sensor.

Description

technical field [0001] The invention belongs to the technical field of analysis and testing devices, and in particular relates to an automatic detection device and system for thermal weight loss. Background technique [0002] In experiments and analytical tests, it is often necessary to place the sample in a furnace body at a certain temperature for burning, so as to realize the treatment of the sample to achieve the purpose of dehydration, decomposition or removal of volatile impurities, and burning of organic matter. [0003] During the burning process at different temperatures and different conditions, the weight loss of the sample directly reflects the material composition of the sample and other compositional information. In the burning detection process, the sample to be tested is generally filled in the crucible first, and then weighed on an electronic balance to determine the quality of the sample before burning, and then the crucible containing the sample to be test...

AI Technical Summary

Problems solved by technology

[0004] At present, the burning detection still adopts the operation mode of manual clamping to move the crucible, and the crucible is moved between each station, resulting in slow correlation detection, large error, and the repeatability of the results is significantly affected by human operation, especially in the case of large detection volume. In this case, manual operation is more time-consuming and laborious, and cannot meet the requirements of quick inspection

Moreover, during the burning process, the temperature distribution of the furnace is often uneven, which usually causes the position of the crucible to change continuously during the burning process, causing measurement errors; After the volume increases, it is easy to break. On the other hand, the fixing parts will hinder the heat exchange between the crucible and the burning furnace, which will affect the heating effect.

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