Dry exhaust-gas treating apparatus

A waste gas treatment device, dry technology, applied in gas treatment, membrane technology, dispersed particle separation, etc., can solve problems such as activity reduction, and achieve the effect of ensuring the degree of freedom

Inactive Publication Date: 2014-01-22
电源开发工程技术株式会社
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the adsorption tower, various substances such as sulfuric acid and ammonium salt are adsorbed on the adsorbent used for waste gas treatment, which reduces its activity

Method used

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Examples

Experimental program
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Embodiment Construction

[0036] Next, embodiments of the dry exhaust gas treatment device of the present invention will be described with reference to the drawings.

[0037] figure 1 It is a functional block diagram showing the dry exhaust gas treatment device according to the first embodiment of the present invention.

[0038] The dry exhaust gas treatment device 1 of this embodiment has an adsorption tower 2, a regeneration tower 3, a first conveying channel 4A and a second conveying channel 4B that connect the adsorption tower 2 and the regeneration tower 3 and transport the adsorbent, and the lower end side of the regeneration tower 3. The connected lock hopper 5, the rotary valve (sealing part) 6 connected to the upper end side of the regeneration tower 3, and the cleaning tower 7 for cleaning the desorption gas G containing the desorbed product desorbed from the adsorbent.

[0039] The adsorption tower 2 is a device for adsorbing and removing various substances such as SOx (sulfur oxide) in gas...

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PUM

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Abstract

An exhaust-gas treating apparatus, which includes an adsorption tower for removing various harmful substances in an exhaust gas using an adsorbent, a regeneration tower for releasing adsorbed substances from the adsorbent, a first transfer passage for transferring the adsorbent from the adsorption tower to the regeneration tower, a second transfer passage for transferring the adsorbent from the regeneration tower to the adsorption tower, a lock hopper connected to one end of the regeneration tower on a higher differential pressure side of a first differential pressure between an inside of the regeneration tower and an inside of the first transfer passage and a second differential pressure between the inside of the regeneration tower and an inside of the second transfer passage to thereby secure gas-tightness, a sealing unit connected to the other end of the regeneration tower on a lower differential pressure side to thereby secure gas-tightness, and an adjusting unit for maintaining the differential pressure in the sealing unit within a fixed range.

Description

technical field [0001] The invention relates to a dry waste gas treatment device. Background technique [0002] As a device for treating exhaust gas discharged from boilers, incinerators, and sintering furnaces, it is known that the exhaust gas is brought into contact with an adsorbent introduced into an adsorption tower to remove SOx (sulfur oxide), NOx (nitrogen oxide), etc. Dry exhaust gas treatment device for various harmful substances in exhaust gas. [0003] Examples of adsorbents include carbon adsorbents, alumina adsorbents, and silica adsorbents, but carbon adsorbents are superior because they can be treated at relatively low temperatures and can remove various harmful substances at the same time. As the carbon adsorbent, activated carbon, activated coke, etc. are exemplified, and a particle-sized adsorbent of about 0.5 to 4 cm is particularly preferable, and these adsorbents are all known. [0004] In this device, SOx in the exhaust gas is adsorbed and removed by...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/50B01D53/08B01D53/81
CPCB01D53/08B01D2259/401B01D2257/404B01D2253/104B01D2259/402B01D2251/2062B01D2253/102B01D2257/302B01D2259/4009B01D53/508B01D53/83B01D53/565B01D2253/106
Inventor 古山邦则宫正浩铃木亮
Owner 电源开发工程技术株式会社
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