Embedded type automatic blowback filter at top of catalyst tank

Abstract

The invention relates to an embedded type automatic blowback filter at the top of a catalyst tank, comprising a shell body, wherein filter cores are arranged in the shell, a nozzle is relatively arranged above the top of each filter core and is connected with a medium blowback inlet through a pipe, a filter inlet is arranged at the bottom of the shell, a filter outlet is arranged at the top of the shell, the filter outlet is communicated with the filter inlet through the filter cores, the interior of the shell is partitioned by clapboards into a plurality of air filtering room units, and the filter cores are respectively arranged in the air filter room units. The embedded type automatic blowback filter overcomes the defects in the prior art that as gas exhausted by the catalyst canned in negative pressure contains catalyst particles with higher concentration, waste of the catalyst is resulted and the environment is polluted; through the design, the embedded type automatic blowback filter at the top of the catalyst tank, disclosed by the invention, has the advantages of compact structure, small volume, capability of effectively controlling pollution caused by raise dust exhaust of the catalyst, high recovery rate of the catalyst, and capability of continuously and stably running for a long term.

Description

technical field [0001] The invention relates to an automatic backflushing filter on the top of a built-in catalyst tank. Background technique [0002] Catalysts are constantly consumed during the operation of catalytic devices in refineries in the domestic petrochemical industry, so it is necessary to replenish catalysts to the catalyst tanks regularly. Catalysts are filled in tanks under negative pressure, and steam evacuators are generally used to pump the air from the top of the tank into the atmosphere to cause negative pressure inside the tank. The part of the gas that is pumped away and sent to the atmosphere contains catalyst particles with a high concentration, resulting in a waste of catalyst, and the particle size of the above catalyst is small, and the traditional cyclone separation method cannot meet the national emission standards, causing pollution to the environment. At the same time affect the health of employees. Contents of the invention [0003] In ord...

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Problems solved by technology

[0003] In order to overcome the problem in the prior art that when the catalyst is filled in a tank under negative pressure, the gas discharged contains catalyst particles with a high concentration, which not only causes waste of catalyst, but also pollutes the environment. The invention provides a built-in catalyst tank top automatic blowback Filter, the built-in automatic backflushing filter on the top of the catalyst tank has a compact structure, small size, can effectively control the dust pollution of the catalyst, and has a high recycling rate of the catalyst

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