Screw-in sampler and sampling device

Abstract

The invention provides a spiral screwing type sampler. The spiral screwing type sampler comprises an upper sampling rod and a lower spiral lifer; the spiral lifer comprises a spiral central spindle and a spiral blade wound outside the spiral central spindle; and the upper surface of the spiral blade for loading sampled materials extends in a shape of sunken circular arc surface along the radial direction of the spiral lifter. Compared with the prior art, the spiral screwing type sampler and the sampling device have the advantages of greatly reducing failure rate, along with simple structure, low downgoing resistance, high sampling speed, high reliability, convenience in equipment maintenance, and high working efficiency and the like.

Description

technical field [0001] The invention relates to a material sampling device and its components, in particular to a sampler and a sampling device with the sampler. Background technique [0002] At present, domestic sampling devices for mechanical sampling of materials loaded by trains and automobiles include the non-rotating auger drilling type of the outer cylinder, the rotating auger drilling type of the outer cylinder, the screw-in grab type, and the insertion grab type, etc., all of which Both methods have defects such as complex structure, difficult maintenance and high cost. [0003] As far as the sampling method is concerned, some enterprises still use manual sampling at present. When sampling bulk materials, workers have to carry large baskets and climb up to the train carriages to sample. The representativeness and stability of the collected samples fluctuate greatly, which directly affects the accuracy of the test results. There are also few companies that have ado...

AI Technical Summary

Problems solved by technology

For example, the sampling equipment produced by some enterprises is mainly composed of reducers, drive shafts, sampling hoppers, and large and small vehicles. The sampling hopper can only obtain sub-samples of the material surface, making the samples unrepresentative; The device crushes the particle size of the sample during the sampling process, which makes the particle size of the sample no longer authentic; some sampling devices developed by some companies will be blocked and leaked when unloading.

[0004] Certainly, the most common problem of the existing sampling device is that it can only take powdery loose materials, and when there are large and hard block materials (such as coal gangue) in the materials or the materials to be taken are all block materials, other The sampling depth cannot be reached, or even if the sampling depth is reached, the sampling cannot be successfully completed; because the bulk material cannot be collected, the weight volume of the sample is difficult to reach the weight volume set by the country and the industry according to the different particle sizes of the material, which is convenient It will cause the collected samples to be unrepresentative and fail to meet the standard requirements for sampling

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