A method of pigging for remote pneumatic conveying pipelines

Abstract

A method for pigging a remote pneumatic conveying pipeline, which specifically includes the following steps: (1) firstly collecting data to master various design parameters of the remote pneumatic conveying pipeline; (2) designing and processing a pipeline pigging robot; (3) ), assemble the pipeline pigging robot, and install the internal wireless transmission module on the pipeline pigging robot; (4), set up several external wireless transmission modules on the ground along the conveying direction of the remote pneumatic conveying pipeline; (5), clear the pipeline The pipe robot is sent into the remote pneumatic conveying pipeline to clean the inner wall of the pipeline; (6) During the movement of the pipeline pigging robot in the remote pneumatic conveying pipeline, the pipeline pigging robot is monitored in real time through the inner wireless transmission module and the outer wireless transmission module. ; (7), take out the pipeline pigging robot; (8), repair and maintain the pipeline pigging robot. The operating speed of the invention has a large range of options, and the speed regulation is rapid and accurate, and the operation is simple and easy to control.

Description

technical field [0001] The invention belongs to the technical field of pipeline cleaning, and in particular relates to a pigging method for remote pneumatic conveying pipelines. Background technique [0002] Pipeline pneumatic conveying is the use of flowing air to convey bulk materials through pipelines. It originated in the nineteenth century in Europe and the United States for pneumatically conveying mail. It is also one of the commonly used conveying methods for continuous conveying of powder and granular materials. At present, its application research widely. [0003] The grain pneumatic conveying device first appeared in the Russian port in the late nineteenth century, and then the British invented the grain suction machine for sucking and transporting raw grain on this basis. The application of domestic grain pneumatic conveying technology was developed following the need for bulk grain unloading at ports in the 1950s. After the 1960s, some grain terminals began to u...

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Problems solved by technology

[0005] The applicant Henan University of Technology applied for a Chinese invention patent on September 20, 2016. The authorized announcement number is CN106429454B, which specifically discloses a long-distance bolt-type pneumatic conveying system for granular grain crops. The pneumatic conveying pipeline is relatively long and can be conveyed for a long time After the grain and crops are removed, a large amount of grain and crops will be deposited on the inner wall of the remote pneumatic conveying pipeline along the pipeline, which will easily block the pipeline and affect the subsequent conveying of grain and crops. Therefore, it is urgent to study a pigging method for remote pneumatic conveying pipelines

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