SCR denitration reaction tower of cement kiln

A technology of reaction tower and cement kiln, applied in the field of SCR denitration reaction tower of cement kiln, can solve the problems of high dust content in flue gas and high NOX emission concentration, and achieve the effect of ensuring denitration efficiency and avoiding secondary pollution

Pending Publication Date: 2020-05-05
ANHUI CONCH DESIGN & RES INST OF BUILDING MATERIALS CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The production of cement clinker produces a large amount of NOX emissions. Due to the characteristics of high NOX emission concentration and high dust content in flue gas in the cement industry, the denitrification work of the cement clinker production line is facing formidable challenges.

Method used

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  • SCR denitration reaction tower of cement kiln
  • SCR denitration reaction tower of cement kiln
  • SCR denitration reaction tower of cement kiln

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Embodiment Construction

[0030] In the present invention, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal" ", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial", "Plane Direction", "Circumferential" and other indications are based on The orientation or positional relationship shown in the drawings is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as Limitations on the Invention.

[0031] Such as Figure 1 to Figure 8 As shown, a cement kiln SCR denitration reaction tower is characterized in that: it includes a reaction tower 1, and the reaction tower 1 is provided with a diversion uniform distribution plate 2, a catalyst 3 and a dust removal device 4, and a ...

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Abstract

The invention discloses an SCR denitration reaction tower of a cement kiln. The tower comprises a reaction tower, and a flow guide uniform distribution plate, a catalyst and an ash removal device arearranged in the reaction tower; the flow guide uniform distribution plate is arranged at the inlet of the reaction tower, the flow guide uniform distribution plate is connected to the tower body of the reaction tower, the catalyst is connected to the tower body of the reaction tower and is positioned below the flow guide uniform distribution plate, and an ash removal device is arranged above the catalyst and is connected to the tower body of the reaction tower and is positioned below the flow guide uniform distribution plate. The flow guide uniform distribution plate is made of inverted anglesteel, that is, when the flow guide uniform distribution plate is installed in the reaction tower, the opening part of the angle steel faces downwards, the included angle part faces upwards, a gap isformed between every two adjacent angle steel, and gas passes through the gap between every two adjacent angle steel. The arrangement of the flow guide uniform distribution plate has a flow guide effect on the waste gas entering the reaction tower, and the waste gas is uniformly distributed in the reaction tower, so that the uniformity of the waste gas entering the catalyst reaction tower is effectively ensured, and the reaction of the waste gas and the catalyst is more thorough.

Description

technical field [0001] The invention belongs to the technical field of cement production equipment, and in particular relates to a cement kiln SCR denitration reaction tower. Background technique [0002] my country has nearly 5,000 cement companies, and its output has ranked first in the world for many years. In 2018, the country's cumulative total cement output was about 2.21 billion tons. The production of cement clinker produces a large amount of NOX emissions. Due to the characteristics of high NOX emission concentration and high dust content in flue gas in the cement industry, the denitrification work of cement clinker production line is facing formidable challenges. [0003] Staged combustion and SNCR denitrification technologies have been difficult to meet the increasingly stringent NOx emission standards. With its higher denitrification efficiency, SCR will become one of the main directions of flue gas denitrification technology in the cement industry, and the SCR d...

Claims

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Application Information

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IPC IPC(8): B01D53/86B01D53/56
CPCB01D53/8631
Inventor 李乐意李祥超荆云周金波余生徐宝林李志强
Owner ANHUI CONCH DESIGN & RES INST OF BUILDING MATERIALS CO LTD
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