A Coal Sample Crushing and Screening Integrated Machine

Abstract

The invention discloses a crushing and screening integrated machine for preparation of coal samples. The machine comprises a shell, a feeding port, a coarse coal processing device, a coal dropping pipe A, a fine grinding coal box, a coal dropping pipe B, an oscillating sieve box and a powder sucking device, wherein the feeding port is formed in the upper end of the shell and connected with the coarse coal processing device; the coarse coal processing device is connected with the fine grinding coal box through the coal dropping pipe A; the fine grinding coal box is connected with the oscillating sieve box through the coal dropping pipe B; and the powder sucking device is connected with the oscillating sieve box. The crushing and screening integrated machine for preparation of coal samples is reasonable in structure and convenient to use, not only can achieve full automation and integration of crushing and screening of coal samples, but also greatly improves the coal sample preparation efficiency and the coal sample preparation environment.

Description

technical field [0001] The invention relates to material crushing equipment, in particular to an integrated machine for crushing and screening coal samples. Background technique [0002] The coal sample powder making machine adopts a vibrating powder machine. There is a solid cylinder in the middle of the concentric ring with a certain gap in the steel body cup. Then cover it and fix it on the disc driven by the motor. The motor drives the disc. Vibration, so as to drive the steel rings in the cup to collide with each other to crush the coal sample, then take out the coal sample and then use the corresponding mesh screen to manually screen, the coal powder on the mesh screen is used as the coal sample, and the mesh screen must be cleaned after the end. In this way, the manual workload of the coal sample pulverization method is not only cumbersome, but also takes a long time to make the coal sample, and the produced coal powder has certain errors. The working environment for...

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Problems solved by technology

[0002] The coal sample powder making machine adopts a vibrating powder machine. There is a solid cylinder in the middle of the concentric ring with a certain gap in the steel body cup. Then cover it and fix it on the disc driven by the motor. The motor drives the disc. Vibration, so as to drive the steel rings in the cup to collide with each other to crush the coal sample, then take out the coal sample and then use the corresponding mesh screen to manually screen, the coal powder on the mesh screen is used as the coal sample, and the mesh screen must be cleaned after the end. In this way, the manual workload of coal sample pulverization is not only cumbersome, but also takes a long time to make coal samples, and the produced coal powder has certain errors.

The working environment for making coal samples is not only noisy, but also seriously polluted by dust

[0003] Some sample grinders with knives will produce a lot of dust and fine particles during the crushing process, which are easy to remain and adhere to the steel wall of the crushing tool, resulting in loss of samples, and are not conducive to disassembly and cleaning. After crushing It is still necessary to manually screen the coal samples, and the problem is still not resolved. In addition, after the experiment is completed, the residual samples on the mesh screen must be manually cleaned

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