Dynamic wood chip sampling machine

Abstract

The invention discloses a dynamic wood chip sampling machine comprising a rack, wherein a sample spreading device is arranged on the rack, the material spreading device comprises a material spreadingroll, a conveyor belt and a material spreading motor, stop plates are arranged on two sides of the conveyor belt; a material loosening device is arranged above one end of the material spreading device, and a movable sampling device and a material storage trolley are arranged below the other end; the material loosening device comprises a material loosening shell, a material loosening roller and a material loosening motor, a material loosening inlet is arranged at the upper end of the material loosening shell, a material loosening outlet is arranged at the lower side of the material loosening shell, and a plurality of elastic strips are arranged on the outer circumference of the material loosening roller in a staggered manner; a sampling device comprises a sampling bucket and a sample collection box, a sampling bucket inlet is arranged at the upper end of the sampling bucket, and a sampling bucket outlet is arranged on the lower end of the sampling bucket; a plurality of travel switcheselectrically connected with the sampling motor are relatively arranged on the rack; and a material sending device is arranged at the material loosening inlet. The invention aims at providing the dynamic wood chip sampling machine that is improved in sampling accuracy, eliminates cheating behaviors brought by artificial sampling, and achieves fairness and justice during a sampling process.

Description

technical field [0001] The invention belongs to the technical field of papermaking, in particular to a wood chip dynamic sampling machine. Background technique [0002] Large pulp companies usually purchase wood chips as the main raw material. Generally speaking, a large pile of wood chips looks like the same kind, but it contains wood chips of different sizes, light and dark wood chips, wood chips of different sizes and shapes, And countless chips of similar size with beveled or angled ends. The size distribution of wood chips in a pile of uneven size wood chips is extremely influential on subsequent processes. As far as its size is concerned, the pulping speed of larger wood chips is slower than that of smaller wood chips, and different pulping speeds have great impact on pulp production, pulp quality, operation of digesters, pulp treatment after digesters, and pulp screening And cleaning, fine grinding, etc. have a very far-reaching impact. In addition, the chemical co...

AI Technical Summary

Problems solved by technology

Manual sampling has the disadvantages of high labor intensity and low efficiency, and manual sampling will be considered unfair, because the fraudulent behavior of personnel can manipulate the sampling results at will, which will cause supplier complaints or various disputes, which cannot satisfy the development of raw material logistics The demand and management requirements are the problems that have been plaguing pulp production and wood chip procurement

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