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WO2020232599A1 - 一种烧结烟气的脱硝处理方法及设备 - Google Patents

一种烧结烟气的脱硝处理方法及设备 Download PDF

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Publication number
WO2020232599A1
WO2020232599A1 PCT/CN2019/087613 CN2019087613W WO2020232599A1 WO 2020232599 A1 WO2020232599 A1 WO 2020232599A1 CN 2019087613 W CN2019087613 W CN 2019087613W WO 2020232599 A1 WO2020232599 A1 WO 2020232599A1
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Prior art keywords
denitration treatment
treatment method
sintering
gas
sintering material
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PCT/CN2019/087613
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English (en)
French (fr)
Inventor
高彦
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秦皇岛新特科技有限公司
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Priority to KR1020217036572A priority Critical patent/KR102653672B1/ko
Priority to JP2021568689A priority patent/JP7277612B2/ja
Publication of WO2020232599A1 publication Critical patent/WO2020232599A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
    • F27D17/20—Arrangements for treatment or cleaning of waste gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/30—Details, accessories or equipment specially adapted for furnaces of these types
    • F27B9/3005—Details, accessories or equipment specially adapted for furnaces of these types arrangements for circulating gases
    • F27B9/3011—Details, accessories or equipment specially adapted for furnaces of these types arrangements for circulating gases arrangements for circulating gases transversally
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D19/00—Arrangements of controlling devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27M—INDEXING SCHEME RELATING TO ASPECTS OF THE CHARGES OR FURNACES, KILNS, OVENS OR RETORTS
    • F27M2003/00—Type of treatment of the charge
    • F27M2003/04—Sintering
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/10—Reduction of greenhouse gas [GHG] emissions
    • Y02P10/143—Reduction of greenhouse gas [GHG] emissions of methane [CH4]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

Definitions

  • the invention relates to the technical field of steel smelting equipment, in particular to a denitration treatment method and equipment for sintering flue gas.
  • the treatment of flue gas in the iron and steel sintering process has basically been end treatment.
  • the simultaneous denitration technology widely used at home and abroad is the SCR technology.
  • Selective catalytic reduction denitrification is to use a catalyst in an oxygen-containing atmosphere to reduce NO in flue gas to N 2 and water through ammonia.
  • the reaction temperature is 300-450°C
  • the denitration rate can reach 70% to 90%.
  • This technology is mature and reliable, and is currently widely used worldwide, especially in developed countries.
  • the process equipment requires large investment, requires preheating of flue gas, expensive catalysts, short service life, high operating costs, ammonia leakage, equipment corrosion, and Hazardous waste disposal and other issues.
  • the invention discloses a denitration treatment method and equipment for sintering flue gas, which solves the existing problems of short service life and high operating cost.
  • a denitration treatment method for sintering flue gas which includes the following steps: S10: ignite the sintering material; S20: spray a reducing medium to the ignited sintering material to make the reducing medium and the surrounding sintering material The oxidant reacts.
  • the reducing medium includes a reducing agent, and the reducing agent is used to react with oxygen around the sintering material.
  • the reducing agent is used to react with the gas generated by the combustion of the sintering material.
  • the reducing agent is used to cause a reduction reaction with nitrogen oxides generated by the combustion of the sintering material.
  • the reducing agent includes a combustible substance.
  • the reducing agent includes one or more of the following substances: methane, propane, acetylene, hydrogen, methanol, ethanol, coal gas, natural gas, gasoline, heavy oil, pulverized coal, charcoal, coke, wood chips, hydrogen sulfide, cyanide Hydrogen, phosgene, n-butane, n-hexane, n-heptane, n-pentane, propanol, methyl ethyl ketone, vinyl acetate, silane, cyclohexane, hydrogen chloride, butyne, liquefied petroleum gas, petroleum gas, ether, toluene, benzene , Acetone, propyne, ethylene, propylene, butene, butane, coal water slurry.
  • the reducing agent also includes water or water vapor.
  • the reducing medium further includes: a combustion-supporting agent, and the combustion-supporting agent includes one or more of oxygen, air or circulating exhaust gas.
  • a sintering flue gas denitration treatment equipment including: a transportation mechanism, the transportation mechanism is used to transport the sintering material; an ignition device, the ignition device is provided corresponding to the transportation mechanism, The ignition device is used to ignite the sintering material; the reaction control device is provided corresponding to the transportation mechanism.
  • the reaction control device In the direction of the sintering material transportation, the reaction control device is located downstream of the ignition device, and the reaction control device The device is used to add reducing medium to the ignited sintering material.
  • the ignition device is arranged above the transportation mechanism.
  • the reaction control device includes a feeder, the feeder is arranged above the transport mechanism, and a control valve is provided on the feeder, and the control valve is used to control the addition amount of the reducing medium.
  • the reaction control device includes a pipeline, the pipeline is arranged above the transportation mechanism, and a control valve is arranged on the pipeline, and the control valve is used to control the addition amount of the reducing medium.
  • the denitration treatment equipment further includes: a wind box, the wind box is arranged below the transportation mechanism, and is used to collect the flue gas after the sintering material is burned; an air duct, the wind box is in communication with the air duct, A fan is arranged in the air duct.
  • the transportation mechanism includes a transportation trolley, and a plurality of the transportation trolleys are sequentially connected in the sintering material transportation direction.
  • the multiple bellows are arranged at intervals.
  • the sintering flue gas denitration treatment method of the present invention sprays a reducing medium on the sintering material surface during sintering production, so that the reducing medium reacts with the surrounding oxidant to control the combustion atmosphere of the sintering material, such as the oxygen content, thereby It can inhibit the formation of nitrogen oxides, and can also react with nitrogen oxides that have been produced during sintering to reduce nitrogen oxides to nitrogen, thereby reducing nitrogen oxide emissions and low cost.
  • Fig. 1 is a schematic structural diagram of a denitration treatment equipment according to an embodiment of the present invention
  • the invention discloses a denitration treatment method for sintering flue gas, which comprises the following steps:
  • S20 Spray a reducing medium on the ignited sintering material to make the reducing medium react with the oxidant around the sintering material.
  • the sintering flue gas denitration treatment method of the present invention sprays a reducing medium on the sintering material surface during sintering production, so that the reducing medium reacts with the surrounding oxidant to control the combustion atmosphere of the sintering material, such as the oxygen content, thereby It can inhibit the formation of nitrogen oxides, and can also react with nitrogen oxides that have been produced during sintering to reduce nitrogen oxides to nitrogen, thereby reducing nitrogen oxide emissions and low cost.
  • the reducing medium includes a reducing agent, and the reducing agent is used to react with oxygen around the sintering material.
  • the reducing agent can directly undergo oxidation-reduction reactions with oxygen, thereby effectively inhibiting the production of nitrogen oxides, reducing nitrogen oxide emissions and reducing operating costs.
  • the reducing agent is used to react with the gas generated by the combustion of the sintering material, and the reducing agent is used to perform an oxidation-reduction reaction with the nitrogen oxide generated by the combustion of the sintering material.
  • the reducing agent can react with these gases, especially nitrogen oxides, to reduce nitrogen oxides to nitrogen, thereby reducing the nitrogen oxides. Emissions, and will not produce dangerous by-products, safe and reliable.
  • the reducing agent includes one or more of the following substances: methane, propane, acetylene, hydrogen, methanol, ethanol, coal gas, natural gas, gasoline, heavy oil, coal powder, charcoal, coke, wood chips, hydrogen sulfide, cyanide Hydrogen, phosgene, n-butane, n-hexane, n-heptane, n-pentane, propanol, methyl ethyl ketone, vinyl acetate, silane, cyclohexane, hydrogen chloride, butyne, liquefied petroleum gas, petroleum gas, ether, toluene, Benzene, acetone, propyne, ethylene, propylene, butene, butane, coal water slurry, coke, wood chips and other combustible substances, or water and steam that can decompose hydrogen at high temperature.
  • Hydrogen can react to oxidants or nitrogen oxides Carry out a reduction reaction.
  • the reducing agent used in the present invention can be one of the above-mentioned materials, or a mixture of multiple above-mentioned materials.
  • the mixture of various gases, solid mixture, gas and liquid mixture can be realized, and the cost of these mixtures is very high. It is inexpensive and does not cause pollution.
  • the reducing medium further includes: a combustion-supporting agent, the combustion-supporting agent includes one or more of oxygen, air or circulating exhaust gas, and the combustible material and the combustion-supporting material are mixed according to a set ratio, depending on the difference The requirements of the gas atmosphere are appropriately proportioned.
  • a combustion aid By adding a combustion aid, the reaction efficiency can be improved, which helps to further reduce the production of nitrogen oxides.
  • a sintering flue gas denitration treatment equipment including: a transportation mechanism 10, an ignition device 20 and a reaction control device 30, the transportation mechanism 10 is used to transport the sintered sintering material 70;
  • the device 20 is set corresponding to the transportation mechanism 10, and the ignition device 20 is used to ignite the sintering material;
  • the reaction control device 30 is set corresponding to the transportation mechanism.
  • the reaction control device 30 is located downstream of the ignition device 20, and the reaction control device 30 is used To add a reducing medium to the ignited sintering material 70.
  • a reducing medium can be sprayed on the sintering material to burn the reducing medium and react with the surrounding oxidant, thereby inhibiting the generation of nitrogen oxides and also with The nitrogen oxides that have been generated during sintering react to reduce nitrogen oxides to nitrogen, thereby reducing nitrogen oxide emissions and low cost.
  • the ignition device 20 is provided above the transportation mechanism 10.
  • the sintered material in the transportation mechanism 10 can be effectively ignited.
  • the reaction control device 30 includes a feeder, which is arranged above the transport mechanism 10, and a control valve is arranged on the feeder, and the control valve is used to control the addition amount of the reducing medium.
  • the control valve can control the addition amount of the reducing medium to achieve effective control of the combustion atmosphere of the sintering material, for example
  • the oxygen content and temperature can inhibit the production of nitrogen oxides.
  • the reaction control device 30 includes a pipeline, the pipeline is arranged above the transport mechanism 10, and a control valve is arranged on the pipeline, and the control valve is used to control the addition amount of the reducing medium.
  • the control valve can control the addition amount of the reducing medium to achieve effective control of the combustion atmosphere of the sintering material, for example
  • the oxygen content and temperature can inhibit the production of nitrogen oxides.
  • the denitration treatment equipment further includes: a wind box 40 and an air duct 50.
  • the wind box 40 is arranged under the transportation mechanism 10 and is used to collect the flue gas after the sintering material is burned; the wind box 40 is connected to the air duct 50, and the air duct 50 A fan 60 is provided inside. With the negative pressure generated by the fan 60, all the gas generated by sintering can be sucked into the flue through the wind box 40, effectively preventing the flue gas from leaking out.
  • the transport mechanism 10 includes a transport trolley, and a plurality of transport trolleys are sequentially connected in the transport direction of the sintered material 70.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Treating Waste Gases (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)

Abstract

一种烧结烟气的脱硝处理方法及设备，脱硝处理方法包括以下步骤：将烧结料（70）点燃；向点燃后的烧结料（70）喷洒还原介质，使还原介质与烧结料（70）周围的氧化剂发生反应，以控制烧结料（70）燃烧的气氛。脱硝处理设备包括：运输机构（10）用于运输烧结料（70）；点火装置（20）对应运输机构（10）设置，用于点燃烧结料（70）；反应控制装置（30）位于点火装置（20）的下游，用于向点燃的烧结料（70）中添加还原介质。

Description

一种烧结烟气的脱硝处理方法及设备 技术领域
本发明涉及钢铁冶炼设备技术领域，特别是一种烧结烟气的脱硝处理方法及设备。
背景技术
目前为止，钢铁烧结工序烟气治理基本都是末端治理。除活性炭工艺外，当前国内外广泛使用的同时脱硝技术是SCR技术。选择性催化还原脱硝是在含氧气氛中利用催化剂将烟气中NO经氨还原为N 2和水。在反应温度为300-450℃时，脱硝率可达70％～90％。该技术成熟可靠，目前在全球范围尤其是发达国家应用广泛，但该工艺设备投资大，需预热处理烟气，催化剂昂贵且使用寿命短，运营成本高，同时存在氨泄漏、设备易腐蚀及危险废物处理等问题。国内外也存在先用臭氧或催化剂氧化氮氧化物而后用吸收剂脱除的脱硝工艺，但由于该工艺有大量副产品无法回收利用问题，国家相关部门引起极大关注和担心。
发明内容
本发明公开了一种烧结烟气的脱硝处理方法及设备，解决了现有使用寿命短，运营成本高的问题。
根据本发明的一个方面，公开了一种烧结烟气的脱硝处理方法，包括以下步骤：S10：将烧结料点燃；S20：向点燃后的烧结料喷洒还原介质，使还原介质与烧结料周围的氧化剂发生反应。
进一步地，所述还原介质包括还原剂，所述还原剂用于与烧结料周围的氧气发生反应。
进一步地，所述还原剂用于与烧结料燃烧产生的气体发生反应。
进一步地，所述还原剂用于与烧结料燃烧产生的氮氧化物发生还原反应。
进一步地，所述还原剂包括可燃烧物质。
进一步地，所述还原剂包括以下一种或多种物质：甲烷、丙烷、乙炔、氢气、甲醇、乙醇、煤气、天然气、汽油、重油、煤粉、木炭、 焦炭、木屑、硫化氢、氰化氢、光气、正丁烷、正己烷、正庚烷、正戊烷、丙醇、甲乙酮、醋酸乙烯、硅烷、环己烷、氯化氢、丁炔、液化气、石油气、乙醚、甲苯、苯、丙酮、丙炔、乙烯、丙烯、丁烯、丁烷、水煤浆。
进一步地，所述还原剂还包括水或水蒸气。
进一步地，所述还原介质还包括：助燃剂，所述助燃剂包括氧气、空气或循环废气中的一种或多种。
根据本发明的另一个方面，还公开了一种烧结烟气的脱硝处理设备，包括：运输机构，所述运输机构用于运输烧结料；点火装置，所述点火装置对应所述运输机构设置，所述点火装置用于点燃烧结料；反应控制装置，所述反应控制装置对应所述运输机构设置，在烧结料运输方向上，所述反应控制装置位于所述点火装置的下游，所述反应控制装置用于向点燃的烧结料中添加还原介质。
进一步地，所述点火装置设置在所述运输机构的上方。
进一步地，所述反应控制装置包括给料机，所述给料机设置在所述运输机构的上方，所述给料机上设置有控制阀，所述控制阀用于控制还原介质的添加量。
进一步地，所述反应控制装置包括管路，所述管路设置在所述运输机构的上方，所述管路上设置有控制阀，所述控制阀用于控制还原介质的添加量。
进一步地，所述脱硝处理设备还包括：风箱，所述风箱设置在所述运输机构的下方，用于收集烧结料燃烧后的烟气；风道，所述风箱与所述风道连通，所述风道内设置有风机。
进一步地，所述运输机构包括运输台车，多个所述运输台车在烧结料运输方向上依次连接。
进一步地，所述风箱为多个，多个风箱间隔设置。
本发明的烧结烟气的脱硝处理方法，通过在烧结生产时向烧结料料面喷加还原介质，使还原介质与周围的氧化剂发生反应，以控制进入烧结料燃烧气氛，如含氧量，从而可抑制氮氧化物的生成，也可与烧结中已经产生的氮氧化物反应，将氮氧化物还原成氮气，从而减少氮氧化物的排放量，成本低廉。
附图说明
图1是本发明实施例的脱硝处理设备的结构示意图；
图例：10、运输机构；20、点火装置；30、反应控制装置；40、风箱；50、风道；60、风机；70、烧结料。
具体实施方式
下面结合实施例对本发明做进一步说明，但不局限于说明书上的内容。
本发明公开了一种烧结烟气的脱硝处理方法，包括以下步骤：
S10：将烧结料点燃；
S20：向点燃后的烧结料喷洒还原介质，使还原介质与烧结料周围的氧化剂发生反应。
本发明的烧结烟气的脱硝处理方法，通过在烧结生产时向烧结料料面喷加还原介质，使还原介质与周围的氧化剂发生反应，以控制进入烧结料燃烧气氛，如含氧量，从而可抑制氮氧化物的生成，也可与烧结中已经产生的氮氧化物反应，将氮氧化物还原成氮气，从而减少氮氧化物的排放量，成本低廉。
在上述实施例中，还原介质包括还原剂，还原剂用于与烧结料周围的氧气发生反应。在烧结生产过程中，还原剂可以直接与氧气发生氧化还原反应，从而有效抑制氮氧化物的产生，减少氮氧化物的排放，减少运行成本。
在上述实施例中，还原剂用于与烧结料燃烧产生的气体发生反应，还原剂用于与烧结料燃烧产生的氮氧化物发生氧化还原反应。烧结料燃烧时，仍会产生一些气体，其中存在一样氮氧化物，而还原剂可以与这些气体，特别是氮氧化物发生氧化还原反应，将氮氧化物还原为氮气，从而减少氮氧化物的排放，而且不会产生危险的副产品，安全可靠。
在上述实施例中，还原剂包括以下一种或多种物质：甲烷、丙烷、乙炔、氢气、甲醇、乙醇、煤气、天然气、汽油、重油、煤粉、木炭、焦炭、木屑、硫化氢、氰化氢、光气、正丁烷、正己烷、正庚烷、正戊烷、丙醇、甲乙酮、醋酸乙烯、硅烷、环己烷、氯化氢、丁炔、液 化气、石油气、乙醚、甲苯、苯、丙酮、丙炔、乙烯、丙烯、丁烯、丁烷、水煤浆、焦炭、木屑等可燃烧物质，或高温下可分解出氢气的水、水蒸气，氢气可以对氧化剂或者氮氧化物进行还原反应。本发明中采用的还原剂，可以是上述材料中的一种，也可以是多种上述材料的混合物，如多种气体混合，固体混合、气体和液体混合等均能够实现，这些混合物成本都很低廉，而且不会产生污染。
在上述实施例中，还原介质还包括：助燃剂，助燃剂包括氧气、空气或循环废气中的一种或多种，可燃性物质的材料和助燃燃性物质按照设定比例进行混合，根据不同气体氛围的要求进行适当的配比。通过增加助燃剂，可以提高反应效率，有助于进一步降低氮氧化物的产生。
根据本发明的另一个方面，还公开了一种烧结烟气的脱硝处理设备，包括：运输机构10、点火装置20和反应控制装置30，运输机构10用于运输带烧结的烧结料70；点火装置20对应运输机构10设置，点火装置20用于点燃烧结料；反应控制装置30对应运输机构设置，在烧结料70运输方向上，反应控制装置30位于点火装置20的下游，反应控制装置30用于向点燃的烧结料70中添加还原介质。本发明通过增加反应控制装置30，在点火装置20点燃烧结料后，可以向烧结料喷洒还原介质，使还原介质燃烧并与周围的氧化剂发生反应，从而可抑制氮氧化物的生成，也可与烧结中已经产生的氮氧化物反应，将氮氧化物还原成氮气，从而减少氮氧化物的排放量，成本低廉。
在上述实施例中，点火装置20设置在运输机构10的上方。可以有效点燃运输机构10中的烧结料。
在上述实施例中，反应控制装置30包括给料机，给料机设置在运输机构10的上方，给料机上设置有控制阀，控制阀用于控制还原介质的添加量。通过将给料机设置在运输机构10的上方，可以方便喷洒还原介质，提高反应效率，减少还原介质的浪费，而且控制阀可以控制还原介质的添加量，实现烧结料燃烧气氛的有效控制，例如含氧量和温度，达到抑制氮氧化物产生的作用。
在上述实施例中，反应控制装置30包括管路，管路设置在运输机构10的上方，管路上设置有控制阀，控制阀用于控制还原介质的添加 量。通过将给料机设置在运输机构10的上方，可以方便喷洒还原介质，提高反应效率，减少还原介质的浪费，而且控制阀可以控制还原介质的添加量，实现烧结料燃烧气氛的有效控制，例如含氧量和温度，达到抑制氮氧化物产生的作用。
在上述实施例中，脱硝处理设备还包括：风箱40和风道50，风箱40设置在运输机构10的下方，用于收集烧结料燃烧后的烟气；风箱40与风道50连通，风道50内设置有风机60。通过风机60产生的负压，可以通过风箱40将烧结产生的气体全部吸入烟道中，有效防止烟气外泄。
在上述实施例中，运输机构10包括运输台车，多个运输台车在烧结料70运输方向上依次连接。风箱40为多个，多个风箱40间隔设置。通过设置运输台车，可以提高烧结料的生产效率，而多个风箱40的设置可以大大提高烟气收集的效果，防止烟气外泄，污染环境。
显然，本发明的上述实施方式仅仅是为清楚地说明本发明所作的举例，而并非是对本发明的实施方式的限定。对于所属领域的普通技术人员来说，在上述说明的基础上还可以做出其它不同形式的变化或变动。这里无法对所有的实施方式予以穷举。凡是属于本发明的技术方案所引伸出的显而易见的变化或变动仍处于本发明的保护范围之列。

Claims (15)

  1. 一种烧结烟气的脱硝处理方法，其特征在于，包括以下步骤：
    S10：将烧结料点燃；
    S20：向点燃后的烧结料喷洒还原介质，使还原介质与烧结料周围的氧化剂发生反应。
  2. 根据权利要求1所述的脱硝处理方法，其特征在于，
    所述还原介质包括还原剂，所述还原剂用于与烧结料周围的氧气发生反应。
  3. 根据权利要求1所述的脱硝处理方法，其特征在于，
    所述还原剂用于与烧结料燃烧产生的气体发生反应。
  4. 根据权利要求3所述的脱硝处理方法，其特征在于，
    所述还原剂用于与烧结料燃烧产生的氮氧化物发生还原反应。
  5. 根据权利要求2所述的脱硝处理方法，其特征在于，
    所述还原剂包括可燃烧物质。
  6. 根据权利要求2所述的脱硝处理方法，其特征在于，
    所述还原剂包括以下一种或多种物质：甲烷、丙烷、乙炔、氢气、甲醇、乙醇、煤气、天然气、汽油、重油、煤粉、木炭、焦炭、木屑、硫化氢、氰化氢、光气、正丁烷、正己烷、正庚烷、正戊烷、丙醇、甲乙酮、醋酸乙烯、硅烷、环己烷、氯化氢、丁炔、液化气、石油气、乙醚、甲苯、苯、丙酮、丙炔、乙烯、丙烯、丁烯、丁烷、水煤浆。
  7. 根据权利要求2所述的脱硝处理方法，其特征在于，
    所述还原剂还包括水或水蒸气。
  8. 根据权利要求2所述的脱硝处理方法，其特征在于，
    所述还原介质还包括：助燃剂，所述助燃剂包括氧气、空气或循环废气中的一种或多种。
  9. 一种烧结烟气的脱硝处理设备，其特征在于，包括：
    运输机构(10)，所述运输机构(10)用于运输烧结料(70)；
    点火装置(20)，所述点火装置(20)对应所述运输机构(10)设置，所述点火装置(20)用于点燃烧结料；
    反应控制装置(30)，所述反应控制装置(30)对应所述运输机构设置，在烧结料(70)运输方向上，所述反应控制装置(30)位于所述点火装置(20)的下游，所述反应控制装置(30)用于向点燃的烧 结料(70)中添加还原介质。
  10. 根据权利要求9所述的脱硝处理设备，其特征在于，
    所述点火装置(20)设置在所述运输机构(10)的上方。
  11. 根据权利要求9所述的脱硝处理设备，其特征在于，
    所述反应控制装置(30)包括给料机，所述给料机设置在所述运输机构(10)的上方，所述给料机上设置有控制阀，所述控制阀用于控制还原介质的添加量。
  12. 根据权利要求9所述的脱硝处理设备，其特征在于，
    所述反应控制装置(30)包括管路，所述管路设置在所述运输机构(10)的上方，所述管路上设置有控制阀，所述控制阀用于控制还原介质的添加量。
  13. 根据权利要求9所述的脱硝处理设备，其特征在于，所述脱硝处理设备还包括：
    风箱(40)，所述风箱(40)设置在所述运输机构(10)的下方，用于收集烧结料燃烧后的烟气；
    风道(50)，所述风箱(40)与所述风道(50)连通，所述风道(50)内设置有风机(60)。
  14. 根据权利要求9所述的脱硝处理设备，其特征在于，
    所述运输机构(10)包括运输台车，多个所述运输台车在烧结料(70)运输方向上依次连接。
  15. 根据权利要求13所述的脱硝处理设备，其特征在于，
    所述风箱(40)为多个，多个风箱(40)间隔设置。
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