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ERD (Efficient Reburning Denitration)+coal saturated steam catalytic combustion denitration device and technique

A catalytic combustion and catalytic burner technology, applied in gasification process, chemical industry, petroleum industry, etc., can solve problems such as after-combustion, and achieve the effects of significant heat consumption, low operating cost, and improved burnout rate

Active Publication Date: 2017-05-17
上海三融环保工程有限公司 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] (3) It is easy to cause afterburning phenomenon

Method used

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  • ERD (Efficient Reburning Denitration)+coal saturated steam catalytic combustion denitration device and technique
  • ERD (Efficient Reburning Denitration)+coal saturated steam catalytic combustion denitration device and technique

Examples

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Embodiment 1

[0112] Such as figure 1 As shown, the present invention provides a kind of ERD+coal-fired saturated steam catalytic combustion denitrification device, comprising:

[0113] A calciner 16, the bottom of the calciner 16 is provided with a secondary air inlet, which is connected with the cement rotary kiln 7; The reduction zone 2 and the reburning zone 4 are respectively equipped with a saturated steam catalytic burner 13 in the reduction zone and a saturated steam catalytic burner 14 in the reburning zone; a C4 (fourth stage preheating separator) feeding pipe is installed in the main combustion zone 3 to enter the decomposition furnace The first raw material inlet 5, the C4 (fourth stage preheating separator) feeding pipe is installed at the position of the reduction zone 2 to enter the second raw material inlet 6 of the calciner; the main combustion zone 3 and the burnout zone 17 are respectively connected with the tertiary air and The burn-off air connection is an oxygen-enri...

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PUM

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Abstract

The invention discloses an ERD + coal saturated steam catalytic combustion denitration device. The ERD + coal saturated steam catalytic combustion denitration device comprises a decomposing furnace, wherein a secondary air inlet is formed in the bottom of the decomposing furnace, and connected with a cement rotary kiln; the decomposing furnace comprises a reduction zone, a main burning zone, a reburning zone and a burning-out zone from the bottom up, a reduction zone saturated steam catalytic combustor and a reburning zone saturated steam catalytic combustor are respectively mounted in the reduction zone and the reburning zone; the reduction zone saturated steam catalytic combustor and the reburning zone saturated steam catalytic combustor are connected with a steam flow metering device, the steam flow metering device is connected with a steam surge tank, the steam surge tank is connected with a steam main pipe, the main burning zone and the burning-out zone are respectively connected with tertiary air and over-fire air, and are oxygen enriched combustion zones, to ensure that pulverized coal of the system is burnt out. The invention further discloses an ERD + coal saturated steam catalytic combustion denitration technique, and has the advantages of high denitration efficiency, simple and easily operated technological process, low operation cost, high system stability, optimized clinker production technology, energy-saving and consumption-reducing effects and the like.

Description

technical field [0001] The present invention relates to the field of environmental protection, in particular to flue gas denitrification in cement production lines, and in particular to an ERD+coal-fired saturated steam catalytic combustion denitrification device; in addition, the present invention also relates to an ERD+coal-fired saturated steam catalytic combustion denitrification process. Background technique [0002] "The Twelfth Five-Year Plan" Comprehensive Work Plan for Energy Conservation and Emission Reduction" (Guo Fa [2011] No. 26), "National Environmental Protection "Twelfth Five-Year Plan" (Guo Fa [2011] No. 42), "Energy Conservation and Emission Reduction" Twelfth Five-Year Plan" (Guo Fa [2012] No. 40), "Twelfth Five-Year Plan for Air Pollution Prevention and Control in Key Areas" (Huan Fa [2012] No. 130), "Regulations on the Implementation of Special Emission Limits of Air Pollutants "Announcement" (Ministry of Environmental Protection Announcement No. 14, ...

Claims

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Application Information

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IPC IPC(8): C10J3/00
CPCC10J3/00C10J2300/1807C10J2300/1606C10J2300/1223C10J2300/0976Y02P20/52Y02P20/10
Inventor 张怀伟龙成张雁忠刘德鹏苗娜曾赐福
Owner 上海三融环保工程有限公司
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