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Flue gas turbulence device

A turbulence device and flue gas technology, applied in gas treatment, dispersed particle separation, membrane technology, etc., can solve the problems of uneven temperature flow field in the flue, destroying the laminar flow state of flue gas, etc., to reduce temperature unevenness, Improved overall safety, ease of maintenance and adjustment

Pending Publication Date: 2020-11-27
BEIJING JINGCHENGKELIN ENVIRONMENTAL PROTECTION TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to make the flue gas flow field uniform in the flue gas SCR denitrification system, the present invention provides a flue gas turbulence device, which can fully destroy the laminar flow state of the flue gas, so that the flue gas can be obtained after spraying ammonia. Fully mixed, finally make the overall temperature of the flue gas tend to be consistent, completely eliminate the deviation of the temperature flow field, and solve the problem of uneven temperature flow field of the SCR inlet elbow flue

Method used

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  • Flue gas turbulence device
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Examples

Experimental program
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Embodiment 1

[0032] A flue gas turbulence device, comprising a flue section 5 and a turbulence mechanism 6, the turbulence mechanism 6 includes a rotating shaft 13 and a driving assembly 7 connected in sequence, and a plurality of first turbulence baffles 10 are arranged outside the rotating shaft 13, and many A first spoiler baffle 10 is arranged at intervals along the axial direction of the rotating shaft 13, the first spoiler baffle 10 is located in the flue section 5, and the driving assembly 7 can drive the rotating shaft 13 and a plurality of first spoiler baffles 10 to rotate the shaft The axis of 13 is the angle set by the shaft rotation, such as Figure 1 to Figure 3 shown.

[0033] In the SCR denitration reaction, the main factors affecting the denitration efficiency are flue gas temperature, catalyst parameters including activation temperature, pitch, porosity, etc., and reactor flow field distribution. Among them, on the premise that the various performance parameters of the c...

Embodiment 2

[0049] This embodiment is an improvement to Embodiment 1. The main difference between this embodiment and Embodiment 1 is that a plurality of second spoiler baffles 14 are arranged outside the rotating shaft 13 of the spoiler mechanism 6, and a plurality of second spoilers The spoiler baffles 14 are arranged at intervals along the axial direction of the rotating shaft 13, the second spoiler baffle 14 has the same structure as the first spoiler baffle 10, and the second spoiler baffle 14 and the first spoiler baffle 10 are mirror images of each other , the long axis of the second spoiler 14 is parallel to the axis of the rotating shaft 13, and the inner surface of the second spoiler 14 is welded and fixed with the rectangular tube 12, as Figure 8 to Figure 10 shown.

[0050] In this embodiment, the plurality of second spoiler baffles 14 are located in the second plane, and the long axes of the plurality of second spoiler baffles 14 are all located in the same horizontal straig...

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Abstract

The invention discloses a flue gas turbulence device. The flue gas turbulence device comprises a flue section (5) and a turbulence mechanism (6); the turbulence mechanism (6) comprises a rotating shaft (13) and a driving assembly (7) which are connected in sequence; a plurality of first turbulent flow baffles (10) are arranged outside the rotating shaft (13), the first turbulent flow baffles (10)are arranged at intervals in the axis direction of the rotating shaft (13), the first turbulent flow baffles (10) are located in the flue section (5), and the driving assembly (7) can drive the rotating shaft (13) and the first turbulent flow baffles (10) to rotate with the axis of the rotating shaft (13) as the axis. According to the flue gas turbulence device, the laminar flow state of flue gascan be fully destroyed, the flue gas is fully mixed after ammonia spraying, finally, the overall temperature of the flue gas tends to be consistent, deviation of a temperature flow field is thoroughlyeliminated, and the problem that the temperature flow field of an SCR inlet elbow flue is uneven is solved.

Description

technical field [0001] The invention relates to a flue gas turbulence device. Background technique [0002] Before 2018, the design of denitrification devices will not be considered for the flue gas emitted by steel mills. Therefore, most of the flue gas treatment is modified after desulfurization, and denitrification devices are installed to meet the requirements of ultra-low emissions. The commonly used process is medium and low temperature SCR denitrification technology, and the core equipment is a vanadium-titanium-based catalyst. The applicable temperature range for the general active components of the catalyst is 260°C to 420°C. When the temperature is lower than 260°C, the ammonia at the denitrification inlet reacts with the sulfur in the flue gas to form ammonium sulfate or ammonium hydrogensulfate. Within a certain temperature range, hydrogen sulfate Ammonia will adhere to or infiltrate into the micropores of the denitrification catalyst, hindering the diffusion of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/86B01D53/90B01D53/56
CPCB01D53/8631B01D53/90B01D2258/0283
Inventor 张鑫杨明华杨源满张金成丁勇山井小海
Owner BEIJING JINGCHENGKELIN ENVIRONMENTAL PROTECTION TECH