Moisture tester crucible

Abstract

The invention discloses a moisture tester crucible which comprises a crucible base body and further comprises a metal layer covered on the surface of the crucible base body. Due to the fact that the metal layer is arranged on the surface of the crucible base body and basically guides static on the crucible base body away, the crucible completely resolves the problem of inaccuracy experiment results of a moisture tester caused by effects of static in winter in the northern area. The crucible further improves accuracy of experiment results and can accurately reflect real moisture content of coal samples to be tested. The crucible prolongs service life by arranging the metal layer on the surface of the crucible base body, removes mental stress of chemical analysts in use of instruments and reduces purchase cost of parts easy to damage of a using unit more importantly. The moisture tester crucible is a metal crucible.

Description

technical field [0001] The invention relates to the technical field of moisture testers, and more specifically relates to a crucible for a moisture tester. Background technique [0002] In the series of coal quality analysis instruments, in order to determine the moisture content in the coal sample, it is first necessary to weigh the weight of the empty ceramic crucible, then put the weight of the coal sample to be tested according to the national standard, and heat it through the heating device of the moisture tester to make the moisture content The temperature of the tester reaches (105-110) ℃, so that the moisture in the tested coal sample evaporates rapidly; then weigh the residual weight of the crucible and the tested coal sample again, and divide the weight of the coal sample by the weight of the tested coal sample Multiply the weight by the percentage to calculate its moisture content. [0003] At present, the crucibles equipped with moisture testers in the entire co...

AI Technical Summary

Problems solved by technology

[0005] 1. In the north, due to the dry climate in winter and the heating of the laboratory, there are many free static ions in the laboratory air attached to the surface of the ceramic crucible, resulting in inaccurate test results of the moisture meter.

[0006] 2. The current way to deal with static electricity: every time the laboratory technician conducts a test, he must touch the crucible twice (before weighing the empty crucible and before weighing the coal sample) in all directions. Thoroughly, the test results are inaccurate

[0007] 3. The test results of the moisture tester using a ceramic crucible are much different from those of the arbitration oven test, which cannot truly reflect the moisture content of the tested coal sample

[0008] 4. The maximum temperature of the moisture tester is 110°C, and the ceramic crucible is generally used in a high temperature environment above 900°C, so it is a serious waste of resources

[0009] 5. Ceramic crucibles are fragile parts. Every year, the user will purchase a large number of ceramic crucibles, because laboratory technicians often accidentally drop ceramic crucibles on the ground and break them, which invisibly increases the psychological pressure of laboratory personnel.

[0010] Therefore, how to avoid the defect of test data error due to the existence of static electricity has become a technical problem to be solved urgently by those skilled in the art

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