Solid material sampling machine

Abstract

The invention discloses a solid material sampling machine which comprises a central pipe. The central pipe is sleeved with a rotating feed pipe. A feed cavity is reserved between the rotating feed pipe and the central pipe. A feed port is formed in the bottom end of the rotating feed pipe. A discharge port is formed in the top end of the rotating feed pipe. An impact mechanism is arranged at the lower portion in the central pipe. An impact sampling head is connected with the lower portion of the impact mechanism in a drive mode. A feed through hole is formed in the impact sampling head. A lifting mechanism I is arranged in the central pipe and connected with a blockage piece which can penetrate into the feed through hole from the tail end of the falling stroke and blocks the feed through hole. The solid material sampling machine has the advantages that impact breaking and collecting functions are achieved, and the whole batch of materials have equal opportunities and probabilities to be collected and sampled; the feed through hole can be blocked, bottom samples do not fall or leak, and the functions of whole-section sampling and random depth point sampling are achieved; a sampler can sample bottom materials without damaging substances below the bottom materials.

Description

Technical field [0001] The invention relates to a solid material sampling machine. Background technique [0002] A typical ore and coal sampler adopts a screw-type sampler. Its structure is composed of a rotating screw rod in the middle and a stationary barrel tube outside. The principle is that the screw rod receives the external rotating torque while rotating while the stationary barrel tube receives Under the downward pressure, the sampler is inserted into the material for sampling under the action of the two. The sample enters from the lower end of the stationary barrel tube through the spiral blade of the screw rod. The disadvantages of this kind of sampler are: (1) The sampler only has Pressure and rotating torque can’t be crushed when encountering hard block materials, and it is easy to block the spiral groove. In the case of large blocks or large blocks of hard materials, the sampling head cannot be broken and inserted under the hard objects, causing the hard objects to b...

AI Technical Summary

Problems solved by technology

[0002] A typical ore and coal sampling machine adopts a screw-type sampler. Its structure is composed of a rotating screw rod in the middle and a stationary barrel tube on the outside. Downward pressure, under the action of the two, the sampler is inserted into the material for sampling, and the sample enters from the lower opening of the stationary barrel tube through the rotation of the helical blade of the screw rod. The disadvantages of this sampler are: (1) The sampler only has Pressure and rotational torque, hard block materials cannot be crushed, and the spiral groove is easy to be blocked. In case of large stones or large hard materials, the sampling head cannot be broken and inserted under the hard object, resulting in a dead angle under the hard object. Sampling, can only give up and find another sampling point

(2) The edge of the opening of the barrel tube has no crushing function, and the sampler cannot only collect the larger particles under the edge of the opening of the barrel tube as required, and the result is either collected as a whole or excluded as a whole

(5) The opening of the sampler is fixed, that is, the volume of the sampled sub-samples remains unchanged, which cannot meet the sampling requirements of multi-point sub-samples with different volumes

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