Fluidized bed wet-process molecular sieve device integrated with flue gas desulfurization, denitrification and dust removal functions

Abstract

The invention discloses a fluidized bed wet-process molecular sieve device integrated with flue gas desulfurization, denitrification and dust removal functions, belonging to the technical field of flue gas purification. The fluidized bed wet-process molecular sieve device comprises a fluidized bed filled with a desulfurization agent, a denitrification system and a drying and dust removal chamber,wherein a smoke pipe is connected to the fluidized bed, and a heater is arranged on the smoke pipe; and a gas introduction pipe is further connected to the fluidized bed and is connected with the denitrification system, the denitrification system is connected with the drying and dust removal chamber through an air guiding pipe, a molecular sieve is arranged in the drying and dust removal chamber,and a smoke discharging pipe is further connected to the drying and dust removal chamber. The smoke enters the fluidized bed through the smoke pipe, adequately reacts with the fluidized desulfurization agent, enters the denitrification system through the air guiding pipe, adequately reacts with denitrification liquid in the denitrification system and enters the drying and dust removal chamber through the air guiding pipe, particulate matters and water in the smoke are removed through the molecular sieve in the drying and dust removal chamber, and the clean smoke is discharged out through the smoke discharging pipe. The fluidized bed wet-process molecular sieve device is compact in structure, novel in design, low in cost and environmentally friendly and has an energy-saving effect.

Description

technical field [0001] The invention belongs to the technical field of flue gas purification, and in particular relates to a fluidized bed wet molecular sieve device for collecting flue gas desulfurization, denitrification and dust removal. Background technique [0002] Industrial boilers convert the chemical energy of fuel into thermal energy of working fluid through combustion, and discharge the combustion product flue gas into the atmosphere. At present, industrial boilers have been widely used in heating, coal chemical industry and other industries. The flue gas emitted by industrial boilers carries a large amount of sulfur oxides, nitrogen oxides and fine particles. If these flue gases are directly discharged into the atmosphere, it will cause air acid corrosion and fine particle pollution, which will damage the air quality and pollute the environment. [0003] Although most of the existing boilers have been equipped with desulfurization, denitrification and dust remov...

AI Technical Summary

Problems solved by technology

The flue gas emitted by industrial boilers carries a large amount of sulfur oxides, nitrogen oxides and fine particles. If these flue gases are directly discharged into the atmosphere, it will cause air acid corrosion and fine particle pollution, which will damage the air quality and pollute the environment.

[0003] Although most of the existing boilers have been equipped with desulfurization, denitrification and dust removal devices, these devices are arranged separately. It is necessary to invent a device to solve the problem of large capital investment and complex equipment caused by the separation of existing desulfurization, denitrification and dust removal devices.

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