Reforming catalyst negative pressure fluidization windmill type physical classification device

Abstract

The invention discloses a reforming catalyst negative pressure fluidization windmill type physical classification device which comprises a material lifting machine, classification material bins, an electromagnetic discharge valve, a balance feeder, an electric heating wind area, a hot wind distribution guide area, a control area, a classification adjusting plate, a first wind guide area, a second wind guide area and a plurality of corresponding collecting areas. The material lifting machine is connected with the classification material bins. The balance feeder is arranged below the discharge port of the top classification material bin. The electromagnetic discharge valve is arranged at the discharge port of the top classification material bin. The electric heating wind area is arranged on one side of the lower portion of the balance feeder. The physical classification device is good in classification effect which can reach 98% or above; hot wind is adopted as separation power in the classification process, a catalyst does not absorb moisture, dust can be rapidly separated out and collected, safety and environmental protection are achieved, the vibration crushing phenomenon of the catalyst and the abrasion loss phenomenon of the catalyst do not exist in the classification process, and separation can be achieved as long as density differences exist.

Description

technical field [0001] The invention relates to the technical field of classifying devices, in particular to a negative pressure fluidized windmill type physical classifying device for reforming catalysts. Background technique [0002] The continuous reforming unit is a unit for the purpose of producing high-octane gasoline blending components and aromatics. The reaction is carried out in a moving bed radial reactor equipped with a platinum-containing catalyst. During the operation of the device, the catalyst can be added to the reactor or unloaded from the reactor. [0003] In the recent period, the device runs for about three years, which is a cycle. During the operation process, due to the upstream raw material factors and operating factors, there are sometimes local overheating phenomena to form dwarf balls. Due to the high strength of the dwarf balls, the catalyst wears out during the cycle. Over time, some The wear and tear of the catalyst becomes smaller during the c...

AI Technical Summary

Problems solved by technology

[0008] At present, the shortcomings of the granular catalyst vibration fluidization density classification technology used in China are: (1) the classification effect is not high; (2) there is friction loss; (3) the catalyst is easy to absorb moisture during the classification process; (4) the catalyst with a density difference below 3% cannot be classified

Images