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Flue gas purifying absorbing tower and processing method thereof

A flue gas purification and absorption tower technology, applied in gas treatment, chemical instruments and methods, separation methods, etc., can solve problems such as the inability to guarantee the space utilization rate of the absorption tower body.

Inactive Publication Date: 2017-12-05
INST OF PROCESS ENG CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this design cannot guarantee the space utilization of the absorption tower body

Method used

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  • Flue gas purifying absorbing tower and processing method thereof
  • Flue gas purifying absorbing tower and processing method thereof
  • Flue gas purifying absorbing tower and processing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0077] This embodiment provides a flue gas purification absorption tower, the adsorbent used in the flue gas purification absorption tower is activated carbon, and the structure of the absorption tower is as follows figure 1 and figure 2 As shown, the size of the tower body is 2m in length, 4m in width, and 10m in height, and the flue gas volume that can be treated is 8000Nm 3 / h, a layer of adsorbent layer 6 with a thickness of 2m is arranged in the middle of the tower body, porous plates 10 are arranged on both sides of the adsorbent layer, and the flue gas channels on both sides of the adsorbent layer are each 1m wide. The lower part of the tower body is provided with an air inlet 1, on one side of the air inlet 1, a baffle 9 is arranged horizontally in the space above the air inlet 1 between the tower body and the adsorbent layer 6, and the upper part of the tower body is arranged on the same side as the air inlet 1 Gas outlet 2, the top of the tower body is provided wit...

Embodiment 2

[0084]This embodiment provides a flue gas purification absorption tower, the adsorbent used in the flue gas purification absorption tower is activated carbon, and the structure of the absorption tower is as follows image 3 and Figure 4 As shown, the size of the tower body is 8m in length, 4m in width, and 16m in height, and the flue gas volume that can be treated is 50000Nm 3 / h, the total thickness of the adsorbent layer 6 in the middle of the tower body is 2m. In order to better realize the desulfurization and denitrification process, the adsorbent layer 6 is divided into two layers, and its thickness is respectively 50cm and 150cm. It is a perforated plate 10, and the layers are also separated by the perforated plate 10. The perforated plate 10 in this embodiment is a steel plate. The lower part of the tower body is provided with an air inlet 1, on one side of the air inlet 1, a baffle 9 is arranged horizontally in the space above the air inlet 1 between the tower body a...

Embodiment 3

[0092] This embodiment provides a flue gas purification absorption tower, whose specific structure and treatment method refer to Example 1, the difference is that the adsorbent used in the flue gas purification absorption tower is activated coke, and the thickness of the adsorbent layer 6 is 1m. The angle of inclination of the feeding pipeline 7 is 80°.

[0093] The material inlet and outlet structure of the tower body in this embodiment enables the adsorbent to move smoothly from the top of the tower body to the bottom of the tower body, the physical wear of the adsorbent is less than 0.5%, the space utilization rate of the tower body is high, and the adsorption and removal can be carried out efficiently. used to treat SO 2 3 ,NO x 3 , the flow rate is 4000Nm 3 / h flue gas, its flue gas desulfurization rate is above 98%, denitrification rate is above 80%, and it can remove more than 50% of dust and more than 80% of heavy metals. method of contamination.

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Abstract

The invention provides a flue gas purifying absorbing tower and a processing method thereof. The absorbing tower comprises a tower body, an air inlet, an air outlet, an adsorbent feeding inlet, an adsorbent discharge hatch, an adsorbent layer, a feeding pipeline, and a discharging pipeline; the air inlet is arranged at the lower part at one side of the tower body, the air outlet is arranged at the upper part of the tower body with the same side of the air inlet, the adsorbent feed layer is vertically arranged in the tower body, the adsorbent feeding inlet and the feeding pipeline communicated with the adsorbent feeding inlet are arranged at top of the tower body, and the adsorbent discharge hatch and the discharging pipeline communicated with the adsorbent discharge hatch are arranged at the bottom of the tower body. The processing method comprises the following steps: the adsorbent is sent to the adsorbent layer through the adsorbent feeding inlet by the feeding pipeline, the flue gas is introduced into the tower from the air inlet, the flue gas passes through the adsorbent layer, and is discharged from the air outlet, and the adsorbent is discharged from the discharge hatch through the discharging pipeline. The inlet-outlet structure of the absorbing tower is capable of moving the adsorbent from top of the tower body to the bottom smoothly, the utilization rate of the tower body is guaranteed, the physical loss of the adsorbent is reduced, and the removal by adsorption can be efficiently carried out.

Description

technical field [0001] The invention belongs to the technical field of flue gas purification equipment, and relates to a flue gas purification absorption tower, in particular to a material inlet and outlet structure of an activated carbon method flue gas purification absorption tower. Background technique [0002] As the country's requirements for environmental protection become more and more stringent, and the limit value of industrial flue gas emission standards is becoming stricter, relevant research and design personnel in various industries are developing new flue gas treatment technologies and designing efficient key equipment for flue gas treatment. Activated carbon flue gas purification technology is relatively mature in the steel industry. This technology can not only remove SO in the flue gas at the same time 2 and NO x , also has the advantages of no water consumption, no secondary pollution, effective removal of dust and heavy metals (such as mercury) and other ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/04B01D53/86B01D53/64B01D53/60B01D53/56B01D53/50
CPCB01D53/04B01D53/8609B01D53/8628B01D53/8637B01D53/8665B01D2257/60B01D2258/0283
Inventor 朱廷钰李玉然张帅王斌
Owner INST OF PROCESS ENG CHINESE ACAD OF SCI
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