Flue gas mixing device and method

A technology of flue gas mixing and flue, which is applied in the direction of mixing methods, mixers, gas and gas/steam mixing, etc., can solve the problems of high energy consumption and poor flue gas mixing effect, and achieve high energy consumption and solution Poor flue gas mixing effect, effect of reducing collision loss

Active Publication Date: 2018-05-11
INST OF PROCESS ENG CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The purpose of the present invention is to provide a flue gas mixing device and method to solve the problems of high energy consumption and poor flue gas mixing effect of the existing flue gas mixing device

Method used

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  • Flue gas mixing device and method
  • Flue gas mixing device and method

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Embodiment Construction

[0036] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.

[0037] Such as figure 2 as shown, figure 2 It is a top view of a flue gas mixing device provided in this embodiment (the air branch pipe is not shown in the figure). The main body of the flue gas mixing device is a Venturi tube structure, and the flue inlet section 11, Neck section 21 , throat section 22 , flaring section 23 and flue outlet section 12 . The air intake holes 221 are evenly and obliquely arranged on the circumferential side wall of the throat section 22 , and the throat section 22 extends outward in the circumferential direction with a ring cavity 3 covering the entire throat section 22 Outside, a space for containing gas is formed inside the ring cavity 3 . The cross-section of the ring cavity 3 can be a circular structure or a trapezoidal structure. This embodiment does not lim...

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Abstract

The invention discloses a flue gas mixing device and method and relates to the technical field of gas mixing. The flue gas mixing device comprises a flue inlet section, a throat section and a flue outlet section which are sequentially communicated, wherein multiple gas inlet holes are circumferentially formed in the side wall of the throat section, and an annular channel cavity is formed in the periphery of the throat section and connected with an annular cold waste gas branch pipe. The main body of the flue gas mixing device is designed into a venture tube structure, so that circulating fluegas can accelerate and guide annular cold waste gas when flowing into the throat section, the annular cold waste gas can be fully mixed without being boosted by an annular cold fan to enter a circulating flue, the annular cold waste gas passes through an annular channel cavity and the gas inlet holes sequentially and can also guide the circulating flue gas, and the problems of high energy consumption and poor flue gas mixing effect of existing flue gas mixing devices are solved.

Description

technical field [0001] The invention relates to the technical field of gas mixing, in particular to a flue gas mixing device and method. Background technique [0002] The sintering flue gas circulation process refers to a sintering method in which a part of the heat-carrying gas discharged from the sintering process is returned to the trolley after the sintering igniter for recycling. A sintering flue gas waste heat graded recycling and pollutant emission reduction process and system (CN201510140855.9), a method and device for sintering low-temperature waste heat circulation and exhaust gas reduction (CN200910051731.8), and an energy-saving and environment-friendly sintering waste gas waste heat The sintering flue gas circulation process involved in the utilization and pollutant purification process and system (CN201410309084.7) and other related patents all propose that in order to ensure the quality of sintered minerals in the flue gas cycle, sufficient oxygen should be en...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01F5/04B01F3/02B01F23/10
CPCB01F23/10B01F25/312F27D17/004F27B21/00B01F25/31242B01F25/31425B01F35/2132B01F35/2202
Inventor 朱廷钰徐文青李超群
Owner INST OF PROCESS ENG CHINESE ACAD OF SCI
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