Full-automatic sampling machine for coal sample

Abstract

The invention discloses a full-automatic sampling machine for a coal sample. The full-automatic sampling machine comprises a first coal sample conveying device, a crusher, an adjustable divider, a second coal sample conveying device, an automatic pulverizer, an automatic sample loader, an automatic sample bottle feeding machine and a waste conveying and recovering device, wherein the crusher is provided with a first feeding port and a first discharging port; the adjustable divider is provided with a second feeding port, a second discharging port and a dividing mechanism; a quantitative sample loading box is arranged on a conveyor belt of the second coal sample conveying device; and the automatic pulverizer is provided with a third feeding port, a third discharging port and a sundry discharging port. The full-automatic sampling machine disclosed by the invention is complete equipment which is used for producing a coarse and broken coal sample into an analytic coal sample for testing and is controlled in the full process by adopting a computer. The full-automatic sampling machine has the advantages that the automation of the full process of producing the sample is realized, the work efficiency of sampling is increased and the fairness and equity and accuracy of the sample are ensured; the equipment is fully sealed and is free from being polluted from dust; and waste materials of the crusher, waste sundries of the automatic pulverizer and dust of the conveying device respectively fall into the waste conveying and recovering device, and thus the work environment can be greatly improved.

Description

technical field [0001] The invention belongs to sample preparation equipment for making coarsely broken coal samples into coal samples for testing, in particular to a coal sample automatic sample preparation machine. Background technique [0002] At present, the production of coal samples is to send coarsely broken coal samples (13mm particle size) to the sample preparation process, use a ring hammer crusher to crush the coal to 6mm coal samples, and take 1-2Kg coal samples by shrinkage, and put the coal samples into Dry it in an oven at 110°C for 1-2 hours, grind the coal sample into a coal sample below 2mm with a double-roller crusher; divide the coal sample into a coal sample of about 200g with a splitter, and put it in manually In the vibrating pulverizer, take out the coal sample in about 10 minutes; then sift through a 0.2mm sieve, discard the impurities on the sieve, and pour the sieve into the coal sample bottle. During the entire sample preparation process, workers...

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Problems solved by technology

During the entire sample preparation process, workers work in a high dust and high noise environment for a long time, and the working environment is harsh; the sample preparation procedure is complicated, the labor intensity of the workers is high, and the work efficiency is low. the accuracy of

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