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Pneumatic conveying system operation and maintenance

2018-05-16

Installment and debugging
The pneumatic conveying device is usually a Conveying System composed of a plurality of machines and a plurality of components, so the installation workload is large, and the installation process is also complicated, involving lifting, fitters, pipes, electrical and other types of work. The quality of installation often determines whether the entire device can be used normally, so it should be given enough attention. For a large pressure-feed pneumatic conveying device, it is often necessary to install a dedicated compression machine at the same time.
1. Installation points of pressure-feed pneumatic conveying device
Firstly, the civil construction data must be checked, including pit depth, platform height, and reserved hole size, etc.; secondly, the relevant equipment should be put in place and the level of adjustment should be complied with according to the equipment instructions and in accordance with the [Construction and Acceptance Criteria for Installation of Equipment". After the verticality is fastened. When installing the pipeline, ensure that there is no misalignment between the joints, no gasket between the flanges, etc. The compressed air pipeline should be derusted before the installation of the air pipeline. All pipeline connections should be tight. Finally, turn on the power of the control device and turn on the control circuit and control line.
2. Commissioning points of pressure-feed pneumatic conveying device
After installation, the compressor should be adjusted according to the requirements of the instruction manual for proper discharge and discharge pressure; adjust the working pressure of the safety valve on the gas tank; insert valve, bell valve, butterfly valve, ball valve, etc. on the sending tank. The flexibility of the operation and the reliability of the seal are adjusted; the sequence of operation and the sensitivity of the opening of each air-supplying facility and supercharger facility are adjusted;
3. Points for installation of suction-type pneumatic conveying device
Suction-type pneumatic conveying devices have air-sourced machines such as centrifugal fans, vortex pumps, water ring vacuum pumps, and Roots vacuum pumps. Some devices are equipped with pneumatic machinery, dust collectors, separators, suction nozzles, etc., which are assembled on a moving mechanism to constitute a mobile suction device such as a grain suction machine, a ship unloader, and the like.
4. Key points for debugging suction-type pneumatic conveying machinery
After the installation is complete, first check whether the various places are tight. Usually, it is possible to check whether there is an [inhalation" sound of inhalation at the flange joint or where the sealing device is installed.

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