Efficient turbulence atomization mixing desulfurization and dust removal process based on rotational flow

A technology for desulfurization and dust removal, desulfurization and dust removal equipment, applied in the direction of combined devices, chemical instruments and methods, gas treatment, etc., can solve the problem that the gas phase components and liquid phase components cannot be fully contacted, the gas-liquid contact time cannot be effectively increased, and the smoke and dust cannot be sprayed Settlement and other problems, to achieve the effect of improving spray settlement efficiency, increasing contact area and increasing density

Active Publication Date: 2020-05-05
新疆海天祥瑞环保工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After research, there are the following technical problems: 1) On the basis of not adding electrostatic dust removal, it is impossible to perform efficient atomization and mixing desulfurization and dust removal based on swirl and turbulence treatment; 2) It is impossible to effectively increase the gas-liquid contact time and form a turbulent mass transfer field , so that the gas phase components and liquid phase components cannot be fully contacted; 3) The nozzles cannot spray and settle the smoke in a wide range and from multiple angles, and the absorption reaction efficiency of sulfur dioxide and other sulfides is low

Method used

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  • Efficient turbulence atomization mixing desulfurization and dust removal process based on rotational flow
  • Efficient turbulence atomization mixing desulfurization and dust removal process based on rotational flow
  • Efficient turbulence atomization mixing desulfurization and dust removal process based on rotational flow

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Embodiment 1

[0037] see Figure 1-8 As shown, this embodiment provides a swirl-based high-efficiency turbulent atomization mixed desulfurization and dust removal process, including the following steps:

[0038] S1. The smoke and dust enter the intake area 100 through the buffer pipe 130 and the intake pipe 120, and after flowing downward through the tapered section 210, the particles and gas components in the smoke and dust are compressed and collided, and the density increases. After entering the stable section 220, due to The arc-shaped concave section 242, the arc-shaped convex section 243, and the inclined-plane section 244 on the deflector are all run through with vertical guide holes 245. On the one hand, the arc-shaped concave section 242, the arc-shaped convex section 243, and the inclined-plane The curved surface structure of the section 244 makes the particles collide, increases the contact area, and after further increasing the contact time and density of the particles, the smok...

Embodiment 2

[0043] refer to Figure 1-8 As shown, this embodiment provides a high-efficiency turbulent atomization mixed desulfurization and dust removal equipment, which is suitable for the high-efficiency turbulent flow atomization mixed desulfurization and dust removal process based on swirling flow, including the intake area 100 and the diversion area 200 connected in sequence from top to bottom , the first swirl atomization area 300, the second swirl atomization area 400, the turbulent atomization area 500, the settling area 600, the waste liquid pool 700, the side of the waste liquid pool 700 is provided with a slurry pool 800, the slurry pool 800 Contains desulfurization slurry inside. The desulfurization slurry is selected from sodium hydroxide solution or calcium hydroxide solution with a pH value of 7-8.

[0044] The air intake area 100 is cylindrical and has an exhaust port 110 on the top, and the bottom of the exhaust port 110 is installed with the air intake area 100, the di...

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Abstract

The invention discloses an efficient turbulence atomization mixing desulfurization and dust removal process based on rotational flow, which comprises the following steps: after smoke dust flows downwards and passes through a reducing section, particles and gas components in the smoke dust are compressed and collided, and the density is increased; after the smoke dust enters a stable section, the particles are collided due to the curved surface structures of an arc-shaped concave section, an arc-shaped convex section and an inclined surface section; desulfurization slurry in the slurry pool issprayed into the spray cooling area through a first liquid feeding pipe and a first nozzle, so as to spray particles to form a gas-liquid mixture; the second rotational flow plate and the first rotational flow plate are opposite in rotational flow direction, upward rotational flow is formed, more contacts with desulfurization slurry are made multiple times and the slurry continuously flows downwards to enter a rotational flow diverging area, so the contact time of sulfide and the desulfurization slurry is greatly prolonged, and the sedimentation efficiency is further improved. The desulfurization and dust removal process is high in desulfurization and dust removal efficiency, the dust emission concentration is detected to be smaller than 3.8 mg/m < 3 > and the sulfur dioxide emission concentration is detected to be smaller than 25 mg/m < 3 > after 0.1 ton of normal-pressure coal-fired boiler smoke dust is processed.

Description

technical field [0001] The invention relates to the technical field of desulfurization and dust removal, in particular to a swirl-based high-efficiency turbulent atomization mixed desulfurization and dust removal process. Background technique [0002] There are various desulfurization methods for sulfur-containing refinery gas and natural gas, such as chemical absorption method, physical absorption method, mixed absorption method, membrane separation method and direct conversion method. There are two types of traditional desulfurization devices: tray tower and packed tower. The tray tower is composed of multi-layer trays. The desulfurization tower generally has 20 to 24 trays. The operating pressure is usually above 4MPa, while the operating pressure of the regeneration tower is generally selected from 100 to 200kpa. , it is necessary to continuously increase the pressure of the absorption liquid and then depressurize it, which increases the loss of energy consumption. The ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D50/00B01D53/80B01D53/48B01D53/50
CPCB01D53/80B01D53/50B01D53/48B01D2258/0283B01D50/40
Inventor 姜顺民
Owner 新疆海天祥瑞环保工程有限公司
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