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A high-gravity atomization device based on a wire mesh rotor and its application

An atomization device and supergravity technology, applied in the direction of dispersed particle separation, chemical instruments and methods, separation methods, etc., can solve the problems of complex device structure, large power consumption, large resistance, etc., and achieve high gas-liquid dispersion efficiency and low Power consumption, the effect of simple structure

Active Publication Date: 2020-07-24
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the flue gas treatment devices of industrial coal-fired boilers have the following problems that need to be faced: complex structure of the device, large pressure drop, large energy consumption, equipment corrosion, etc.
However, the device still has the following defects: 1) large power consumption; 2) low gas-liquid dispersion efficiency; 3) large resistance and high pressure; 4) large footprint, etc.

Method used

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  • A high-gravity atomization device based on a wire mesh rotor and its application
  • A high-gravity atomization device based on a wire mesh rotor and its application
  • A high-gravity atomization device based on a wire mesh rotor and its application

Examples

Experimental program
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Effect test

Embodiment 1

[0049] Such as image 3 As shown, in the process of ship fuel oil tail gas treatment, a kind of high gravity atomization device based on the wire mesh rotor of the present invention is used to remove SO in the tail gas 2 and NO;

[0050] The screen rotor includes 5 layers of screen;

[0051] The aspect ratio of the cylinder 3 is 15;

[0052] The wire mesh distribution plate 9 includes 12 layers of wire mesh.

[0053] The wire mesh is 28-28-28, and it is a stainless steel hydrophobic wire mesh, and a horizontal-vertical staggered wire mesh dispersion plate is placed.

[0054] In the reaction of the tail gas absorption, the liquid solute is sodium sulfite, and its pH is adjusted to be 7.5; the gas phase flow rate is controlled to be 50m 3 / h, the liquid phase flow rate is 150L / h, and the speed is adjusted to 1400-2000r / min; the inlet gas contains SO 2 The content of NO is ~700ppm, the content of NO is ~1000ppm; the reaction temperature is normal temperature.

[0055] After...

Embodiment 2

[0057] Such as image 3 As shown, in the process of ship fuel oil exhaust gas treatment, a high-gravity atomization device based on a wire mesh rotor is used to remove SO in the exhaust gas 2 and NO;

[0058] The screen rotor includes 5 layers of screen;

[0059] The aspect ratio of the cylinder 3 is 15;

[0060] The wire mesh distribution plate 9 includes 12 layers of wire mesh.

[0061] The wire mesh is 28-28-28, and it is a stainless steel hydrophobic wire mesh, and a horizontal-vertical staggered wire mesh dispersion plate is placed.

[0062] In the reaction of the tail gas absorption, the liquid solute is natural seawater (alkalinity 2.0mmol / L); the control gas phase flow rate is 50m 3 / h, the liquid phase flow rate is 250L / h, and the speed is adjusted to 1400-2000rpm; the inlet gas contains SO 2 The content of NO is ~700ppm, the content of NO is ~1000ppm; the reaction temperature is normal temperature.

[0063] After testing, the method of the present invention, SO...

Embodiment 3

[0065] Such as Figure 4 As shown, in the process of boiler exhaust gas treatment in the factory, a high-gravity atomization device based on a wire mesh rotor is used to remove SO in the exhaust gas 2 and NO;

[0066] The screen rotor includes 5 layers of screen;

[0067] The aspect ratio of the cylinder 3 is 15;

[0068] The wire mesh distribution plate 9 includes 12 layers of wire mesh.

[0069] The wire mesh is 28-28-28, and it is a stainless steel hydrophobic wire mesh, and a horizontal-vertical staggered wire mesh dispersion plate is placed.

[0070] In the reaction of the tail gas absorption, the liquid solute is sodium sulfite, and its pH is adjusted to be 7.5; the gas phase flow rate is controlled to be 50m 3 / h, the liquid phase flow rate is 150L / h, and the speed is adjusted to 1400-2000rpm; the inlet gas contains SO 2 The content of NO is 3000-5000ppm, and the content of NO is 1000-2000ppm; the reaction temperature is normal temperature.

[0071] After testing,...

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Abstract

The invention discloses a supergravity atomization device based on a screen mesh rotor. The device comprises a barrel body, a screen mesh rotor, a motor, a liquid distributor and a screen mesh dispersion plate; the lower part of the barrel body is provided with a liquid inlet, a liquid outlet, a discharging port and a gas inlet; the center height of the gas inlet is high than that of liquid outlet; the upper part of the barrel body is provided with a gas outlet; the liquid distributor is arranged at a center position of the barrel body, and extends from the bottom end of the barrel body to beadjacent to the top end of the barrel body; the lower end of the liquid distributor is communicated with the liquid inlet; the screen mesh rotor comprises multi layers of screen meshes surrounding theliquid distributor, and each two layers of the screen meshes are separated by the same distance and fixed on the same axial surface; a main shaft at an output end of the motor runs through the coverplate at the top of the barrel body and extends into the barrel body. The supergravity atomization device provided by the invention has lower power consumption and higher gas-liquid dispersing efficiency, and has the advantages of simple structure, large treatment capacity, low resistance and small pressure drop, and the device can be directly modified in a gas pipeline.

Description

technical field [0001] The invention belongs to gas-liquid reaction technology, and relates to a supergravity device and its application, in particular to a screen rotor-based supergravity atomization device and its application. Background technique [0002] Due to the particularity of my country's energy structure, coal and fuel oil have always been the main energy sources in my country, and their combustion is inseparable from industrial production, power generation and trade cargo transportation. These massive burning of coal and fuel oil will inevitably lead to the emission of a large amount of harmful gases such as SO2 and NO. [0003] The combustion of industrial boilers and marine fuel oil has always been a major source of flue gas emissions, and has always been the primary goal of flue gas control. At present, the flue gas treatment devices of industrial coal-fired boilers have the following problems that need to be faced: complex structure of the device, large pres...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/78B01D53/60
CPCB01D53/60B01D53/78B01D2258/01B01D2258/0283
Inventor 初广文费佳罗勇蔡勇孙宝昌邹海魁陈建峰
Owner BEIJING UNIV OF CHEM TECH