A Matrix Type Ammonia Injection Grille with Mixing Device

A technology of mixing device and ammonia spray grid, which is applied in separation methods, dispersed particle separation, chemical instruments and methods, etc., can solve the problems of accelerated wear and corrosion, large flue gas resistance, long mixing distance, etc., so as to improve anti-blocking and wear resistance, reduce smoke resistance, reduce the effect of mixing distance

Active Publication Date: 2018-10-30
BEIJING HI TECH ENG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the prior art, flue gas denitrification usually adopts SCR catalyst reduction method. In this denitrification method, the mixing degree of ammonia gas and flue gas is directly related to the denitrification efficiency. In the existing equipment, the ammonia injection grid is used to complete the ammonia injection grid. Now Some ammonia injection grills are installed in the flue, and the structure is relativel

Method used

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  • A Matrix Type Ammonia Injection Grille with Mixing Device
  • A Matrix Type Ammonia Injection Grille with Mixing Device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Embodiment 1 of the present invention: as figure 1 and figure 2 As shown, a matrix-type ammonia injection grid with a mixing device includes an air injection pipe 1, an air intake pipe 2 and a nozzle 3, the air injection pipes 1 are arranged at equal intervals and arranged in a matrix, and 1 to 10 air injection pipes 1 form an injection unit, the middle part of the air injection pipe 1 of each injection unit is connected together through the connecting pipe 4, and the connecting pipe 4 is provided with an air intake pipe 2; each air injection pipe 1 is provided with a nozzle 3; more than one mixing The device 5 and the mixing device 5 are respectively arranged opposite to each row of nozzles 3 .

[0017] The mixing device 5 includes a spoiler 6 and a spoiler 7, the spoiler 7 is fixed on the spoiler 6, the spoiler 7 is arranged in parallel with the jet tube 1, and each jet tube 1 corresponds to a spoiler 7. Each spoiler tube 6 is provided with an anti-wear deflector 8...

Embodiment 2

[0018] Embodiment 2 of the present invention: as figure 1 and figure 2 As shown, a matrix-type ammonia injection grid with a mixing device includes an air injection pipe 1, an air intake pipe 2 and a nozzle 3, the air injection pipes 1 are arranged at equal intervals and arranged in a matrix, and 1 to 10 air injection pipes 1 form an injection unit, the middle part of the jet pipe 1 of each jet unit is connected together by a connecting pipe 4, the connecting pipe 4 is provided with an air intake pipe 2; each jet pipe 1 is provided with a nozzle 3; more than one mixing The device 5 and the mixing device 5 are respectively arranged opposite to each row of nozzles 3 .

[0019] The mixing device 5 includes a spoiler 6 and a spoiler 7, the spoiler 7 is fixed on the spoiler 6, the spoiler 7 is arranged in parallel with the jet tube 1, and each jet tube 1 corresponds to a spoiler 7. Each spoiler tube 6 is provided with an anti-wear deflector 8 , and the cross-sectional shape of t...

Embodiment 3

[0020] Embodiment 3 of the present invention: as figure 1 and figure 2 As shown, a matrix-type ammonia injection grid with a mixing device includes an air injection pipe 1, an air intake pipe 2 and a nozzle 3, the air injection pipes 1 are arranged at equal intervals and arranged in a matrix, and 1 to 10 air injection pipes 1 form an injection unit, the middle part of the air injection pipe 1 of each injection unit is connected together through the connecting pipe 4, and the connecting pipe 4 is provided with an air intake pipe 2; each air injection pipe 1 is provided with a nozzle 3; more than one mixing The device 5 and the mixing device 5 are respectively arranged opposite to each row of nozzles 3 .

[0021] The mixing device 5 includes a spoiler 6 and a spoiler 7, the spoiler 7 is fixed on the spoiler 6, the spoiler 7 is arranged in parallel with the jet tube 1, and each jet tube 1 corresponds to a spoiler 7. Each spoiler tube 6 is provided with an anti-wear deflector 8...

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Abstract

The invention discloses a matrix type ammonia spraying grille with mixing devices. The matrix type ammonia spraying grille comprises gas spraying pipes (1), gas inlet pipes (2) and spray nozzles (3), wherein the gas spraying pipes (1) are equidistantly arranged and are of matrix type arrangement, one spraying unit consists of 1-10 gas spraying pipes (1), the middle parts of the gas spraying pipes (1) of each spraying unit are connected together by connecting pipes (4), and the gas inlet pipes (2) are arranged on the connecting pipes (4); and the spray nozzles (3) are respectively arranged on each gas spraying pipe (1). The matrix type ammonia spraying grille further comprises more than one mixing device (5), wherein the mixing devices (5) are respectively arranged relative to each longitudinal column of spray nozzles (3). According to the matrix type ammonia spraying grille, the distance of mixing of flue gas and ammonia gas can be shortened, so that the flue gas and the ammonia gas can be mixed more uniformly; and the matrix type ammonia spraying grille has better anti-clogging and wear-resisting properties, can be used for effectively lowering resistance to the flue gas and is more energy-saving and more efficient.

Description

technical field [0001] The invention relates to a matrix ammonia injection grid with a mixing device, which belongs to the technical field of environmental protection. Background technique [0002] In the prior art, flue gas denitrification usually adopts SCR catalyst reduction method. In this denitrification method, the mixing degree of ammonia gas and flue gas is directly related to the denitrification efficiency. In the existing equipment, the ammonia injection grid is used to complete the ammonia injection grid. Now Some ammonia injection grills are installed in the flue, and the structure is relatively simple. The sprayed ammonia gas is directly mixed with the flue gas, the mixing distance is long, and the mixing is not uniform enough. After the ammonia injection grill is installed in the flue, the resistance of the flue gas is relatively large. , and it is prone to clogging, accelerated wear and corrosion under the working conditions of high dust and flue gas, which se...

Claims

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Application Information

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IPC IPC(8): B01D53/90B01D53/56
Inventor 曾辉
Owner BEIJING HI TECH ENG TECH
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