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Improved semi-dry process desulfurization tower

A semi-dry desulfurization and desulfurization tower technology, applied in separation methods, chemical instruments and methods, gas treatment and other directions, can solve the problems of easy corrosion and damage of flue gas outlet pipes, achieve strong corrosion resistance, improve use efficiency and efficiency Good results

Pending Publication Date: 2017-04-26
江苏诺伊拓环保工程有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, many semi-dry desulfurization methods, circulating fluidized bed desulfurization, desulfurization dust collectors and desulfurization reaction towers are provided to realize flue gas desulfurization. The gas outlet pipe is easily corroded

Method used

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  • Improved semi-dry process desulfurization tower
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  • Improved semi-dry process desulfurization tower

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Embodiment Construction

[0025] In order to deepen the understanding of the present invention, the present invention will be further described below in conjunction with the accompanying drawings and embodiments, which are only used to explain the present invention and do not limit the protection scope of the present invention.

[0026] Such as figure 1 As shown, an improved semi-dry desulfurization tower includes a flue gas inlet pipe 1, a liquid desulfurization chamber 2, a desulfurization tower 3 and a flue gas outlet pipe 4 connected sequentially from bottom to top,

[0027] --The liquid desulfurization chamber 2, on which the water supply equipment 5 and the lime slurry supply equipment 6 are connected sequentially from bottom to top;

[0028] --The flue gas inlet pipe 1 is a venturi pipe vertical to the bottom of the liquid desulfurization chamber 2;

[0029] --The flue gas outlet pipe 4 is a horn-shaped pipe connected to the top of the desulfurization tower 3;

[0030] --The top of the desulfu...

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Abstract

The invention discloses an improved semi-dry process desulfurization tower. The improved semi-dry process desulfurization tower comprises a flue gas inlet tube, a liquid desulfurization room, a desulfurization tower and a flue gas outlet tube which are sequentially connected from bottom to top, wherein the liquid desulfurization room is sequentially connected with water supply equipment and lime slurry supply equipment from bottom to top; the flue gas inlet tube is a Venturi tube perpendicular to the bottom of the liquid desulfurization room; the flue gas outlet tube is a horn-shaped tube connected to the top of the desulfurization tower; the top of the desulfurization tower is close to the upper portion of the flue gas outlet tube, and an air exhaust device capable of automatically rotating is arranged; the air exhaust device comprises an air exhaust disc, one end of which is rotatably connected to the inner wall of the desulfurization tower through a hinge; the other end of the air exhaust disc is fixedly arranged on the upper portion of the flue gas outlet tube through a flexible connecting part; and the top of the air exhaust disc is connected to the inner wall of the desulfurization tower through a collapsible connecting rod and a motor. The invention provides the desulfurization tower with controllable outlet flue gas flow, so that flue gas subjected to desulfurization, which enters the inner part of the desulfurization tower from the flue gas inlet, can be guaranteed to subject to desulfurization sufficiently in the desulfurization tower, and therefore, the flue gas is purified.

Description

technical field [0001] The invention relates to the technical field of desulfurization equipment, in particular to an improved semi-dry desulfurization tower. Background technique [0002] Flue gas semi-dry desulfurization means: add limestone powder and water to make a slurry as an absorbent and pump it into the absorption tower to fully contact and mix with the flue gas. The oxidation reaction produces calcium sulfate, and when the calcium sulfate reaches a certain saturation, it crystallizes to form dihydrate gypsum. The gypsum slurry discharged from the absorption tower is concentrated and dehydrated to make its water content less than 10%, and then sent to the gypsum storage warehouse by a conveyor for stacking. The desulfurized flue gas passes through a demister to remove mist droplets, and then heats through a heat exchanger After heating up, it is discharged into the atmosphere through the chimney. Since the absorbent slurry in the absorption tower is repeatedly ci...

Claims

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Application Information

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IPC IPC(8): B01D53/80B01D53/50
CPCB01D53/504B01D53/80B01D2251/604B01D2251/404B01D2258/0283
Inventor 张兆勇
Owner 江苏诺伊拓环保工程有限公司
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