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A multi-layer heterogeneous fluidized bed device for activated carbon desulfurization

An activated carbon and fluidized bed technology, applied in chemical instruments and methods, dispersed particle filtration, dispersed particle separation, etc., can solve the problems of increased initial investment in equipment, less application, large equipment investment, etc., and achieve investment cost savings, operation and maintenance. Simple, highly automated effects

Active Publication Date: 2018-01-05
BEIJING SPC ENVIRONMENT PROTECTION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Disadvantages are: complex process, large floor area, large equipment investment, high energy consumption, and serious equipment corrosion; the by-product gypsum is of poor quality and less used, which will cause secondary pollution
[0003] At present, the most widely used activated carbon desulfurization process mostly adopts fixed bed or moving bed adsorption process, but the following problems exist in the application process of this process: (1) The heat transfer effect of the bed layer is poor, and the utilization rate of activated carbon is low; (2) The bed resistance (3) Poor continuity of system operation and difficult replacement of activated carbon, which is not conducive to timely regeneration and recycling of activated carbon; (4) Complex process equipment and large space occupation, resulting in increased initial investment of equipment and other shortcomings. It hinders the popularization and application of activated carbon desulfurization process

Method used

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  • A multi-layer heterogeneous fluidized bed device for activated carbon desulfurization
  • A multi-layer heterogeneous fluidized bed device for activated carbon desulfurization
  • A multi-layer heterogeneous fluidized bed device for activated carbon desulfurization

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Embodiment 1

[0021] as attached figure 1 As shown, a multi-layer heterogeneous fluidized bed device for activated carbon desulfurization proposed by the present invention includes a booster fan 1, a cooling machine 2, an absorption tower 3, a dust collector 4, a feeder 5, a distribution valve 6, and a storage device 7 and the high-temperature elevator 10, the booster fan 1 communicates with the lower side of the absorption tower 3, the cooler 2 communicates with the bottom of the absorption tower 3, the top of the absorption tower 3 is connected with the dust collector 4, and the discharge of the feeder 5 The port is connected to the upper side wall of the absorption tower 3, the distribution valve 6 is connected to one side of the absorption tower 3, the storage device 7 is connected to the distribution valve 6, and n convection flaps 8 are installed on the upper interior of the absorption tower 3, n≥2 , m layer distribution plate 9 is installed below, m≥2, the feed inlet of high-temperat...

Embodiment 2

[0024] Such as figure 2 As shown, on the basis of embodiment 1, a sorting screen 15 is connected between the high-temperature lifter 10 and the feeder 5, and the activated carbon 12 through the high-temperature lifter 10 utilizes the sorting screen 15 to screen and then enters the feeder 5 , which can remove particles smaller than 1mm and reduce the dust that may be carried away by the flue gas.

Embodiment 3

[0026] Such as image 3 Shown, on the basis of embodiment 1, change steam generator 14 into NH 3 The storage tank 16 is fed with ammonia in layers, which can realize denitrification on the basis of desulfurization effect.

[0027] The multilayer heterogeneous fluidized bed device for activated carbon desulfurization of the present invention does not have high requirements on the particle size, regularity and strength of activated carbon, and can use low-priced desulfurized activated carbon such as broken activated carbon, thereby greatly reducing the operating cost of desulfurization projects. The desulfurization efficiency of the device of the present invention is high, and other wastes such as combined denitrification and mercury removal can also be realized. At the same time, the internal component form of the convection flap coupled with the distribution plate is used to reduce the resistance of the device, thereby reducing the energy consumption of the booster fan by more...

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Abstract

The present invention proposes a multi-layer heterogeneous fluidized bed device for activated carbon desulfurization, which is characterized in that it includes a booster fan, a cooling machine, an absorption tower, a dust collector, a feeder, a distribution valve, a storage device and a high-temperature hoist, The booster fan is connected to the lower side of the absorption tower, the cooling machine is connected to the bottom of the absorption tower, the top of the absorption tower is connected to the dust collector, the discharge port of the feeder is connected to the upper side wall of the absorption tower, and the distribution valve It is connected to one side of the absorption tower, and the storage equipment is connected to the distribution valve. There are n convection baffles installed on the upper part of the absorption tower, n≥2, and m layers of distribution plates are installed below, m≥2. The feed of the high-temperature elevator The outlet is connected to the outlet of the storage equipment, and the outlet of the high-temperature elevator is connected to the inlet of the feeder. The multi-layer heterogeneous fluidized bed device for activated carbon desulfurization of the present invention has the advantages of high desulfurization efficiency, low operation and maintenance costs, and the like.

Description

technical field [0001] The invention relates to the technical field of environmental protection for industrial flue gas purification, in particular to a multi-layer heterogeneous fluidized bed device for activated carbon desulfurization. Background technique [0002] Currently, the control of flue gas SO 2 The most effective method of emission is flue gas desulfurization. Through desulfurization treatment of coal-fired flue gas, SO can be effectively controlled 2 emission. Flue gas desulfurization is divided into dry desulfurization technology and wet desulfurization technology. Limestone --- gypsum wet desulfurization is the most widely used at home and abroad, the proportion of use accounts for 80-90%, the desulfurization rate is ≥ 95%, the process is mature, the operation is stable, the operation is flexible, the desulfurizer is easily available, and the operation cost is low. The disadvantages are: complex process, large floor area, large equipment investment, high e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/02B01D53/12B01D46/00
Inventor 姚常斌张书宾高永军张开元
Owner BEIJING SPC ENVIRONMENT PROTECTION TECH
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