A piston sheath device for material pneumatic conveying system

Abstract

The invention discloses a piston protecting sleeve device used for a material pneumatic conveying system. The piston protecting sleeve device comprises a piston protecting sleeve body which conducts pneumatic conveying in a pneumatic conveying pipeline. The piston protecting sleeve body is internally provided with a protecting cavity used for storing conveyed objects. At least one end of the two ends of the piston protecting sleeve body is provided with a detachable protecting sleeve end cover. Each protecting sleeve end cover is provided with an automatic locking mechanism used for being matched with the piston protecting sleeve body in a locked mode so that the protecting cavity can be sealed. The piston protecting sleeve device used for the material pneumatic conveying system has the advantages of being simple and compact in structure, safe and rapid in conveying, convenient and flexible in turning on and off, suitable for automatic operation and use and capable of ensuring the physical property and precision of samples.

Description

technical field [0001] The invention mainly relates to the field of material sample collection and processing equipment, in particular to a piston sheath device used in a material pneumatic conveying system. Background technique [0002] For the sampling, sample preparation, and testing of material (such as ore, coal) samples, each country has mandatory standards, and the sampling and processing of samples must be carried out in accordance with the standards. The principle of sample sampling, sample preparation, and testing work process is to gradually reduce the particle size and quality of the collected samples without destroying the representativeness of the sample, until it meets the particle size and quality of the sample in the laboratory test ( Weight) accuracy requirements, and then carry out relevant laboratory analysis on the samples that meet the requirements. For example, taking coal sampling as an example, it is actually a sampling and analysis process. The pur...

AI Technical Summary

Problems solved by technology

Firstly, this method requires a high degree of matching between the pipe and the sample bottle. The staff needs to design the sample bottle according to the size of the pipe, or design the pipe according to the size of the sample bottle. very inconvenient

The second is that this method does not protect the sample bottle, and the air pressure directly acts on the sample bottle, which may easily cause serious consequences such as sample bottle rupture or even sample bottle explosion.

At the same time, the sample bottle is easy to collide with the pipeline during the high-speed transmission process, resulting in damage to the sample bottle and sample leakage

The third is that the sample bottle directly rubs against the pipeline. During high-speed transmission (10 meters per second), the friction heat will cause the sample water in the sample bottle to be analyzed or oxidized, which will affect the physical characteristics and accuracy of the sample.

However, due to the high-speed transmission, the sample bottle is easy to fall off from the push piece during the transmission process, resulting in separation

In addition, in order to connect firmly with the sample bottle, some push parts have a complex connection structure between the two. When the transmission needs to be separated, or the two need to be connected before transmission, the operation is very inconvenient, and it is not suitable for automatic pneumatics. The development of transmission has also seriously affected the efficiency of sampling work

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