Drying and cooling integrated device for aromatic hydrocarbon adsorbent multi-chamber fluidized bed

Abstract

The invention relates to a drying and cooling integrated device for an aromatic hydrocarbon adsorbent multi-chamber fluidized bed. The bottom of the fluidized bed is provided with a multi-hole sieve plate. Vertical baffles are arranged above the sieve plate and sequentially divide the fluidized bed into a dehydration chamber, a drying chamber, a cooling chamber and an unloading chamber in the automatic feeding opening direction. A saturated steam heating pipeline is arranged in the dehydration chamber, and tail gas, with low water content, exhausted from the drying chamber is used as carrier gas of the dehydration chamber so as to improve the system heat efficiency. According to the drying and cooling integrated device, dehydrating, drying, cooling and unloading of the aromatic hydrocarbon adsorbent are carried out in the same equipment, the process and the equipment are simplified to the maximum degree, the automation degree and the integration degree are high, and the functionality is high.

Description

technical field [0001] The invention relates to an aromatic hydrocarbon adsorbent semi-circulation internal heating type multi-chamber fluidized bed deep drying and cooling integrated device. Background technique [0002] At present, two-stage vibrating fluidized bed drying systems are mostly used for the drying of aromatic hydrocarbon adsorbents. On the one hand, due to the easy separation of materials in the vibrating fluidized bed drying system, poor fluidization stability, and fast feeding speed, the drying effect is not good. On the other hand, high-frequency mechanical vibration is not only easy to break materials, affecting product quality, but also prone to frequent mechanical failures, short equipment life, and affecting normal production. [0003] In addition, due to the strong water absorption of the aromatic hydrocarbon adsorbent, the original system needs to consume a large amount of absolute dry air as the drying medium. After drying, the tail gas will bring mo...

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Problems solved by technology

[0002] At present, two-stage vibrating fluidized bed drying systems are mostly used for the drying of aromatic hydrocarbon adsorbents. On the one hand, due to the easy separation of materials in the vibrating fluidized bed drying system, the fluidization stability is poor, and the feeding speed is fast, the drying effect is not good.

On the other hand, high-frequency mechanical vibration is not only easy to break materials, affecting product quality, but also prone to frequent mechanical failures, short equipment life, affecting normal production

[0003] In addition, due to the strong water absorption of the aromatic hydrocarbon adsorbent, the original system needs to consume a large amount of absolute dry air as the drying medium. After drying, the tail gas will bring a lot of heat and the power of the pressure blower is large, so the energy consumption of the system is high.

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