CN111747727A - 一种含铜、镍固体危险废物烧结系统及烧结工艺 - Google Patents
一种含铜、镍固体危险废物烧结系统及烧结工艺 Download PDFInfo
- Publication number
- CN111747727A CN111747727A CN202010751130.4A CN202010751130A CN111747727A CN 111747727 A CN111747727 A CN 111747727A CN 202010751130 A CN202010751130 A CN 202010751130A CN 111747727 A CN111747727 A CN 111747727A
- Authority
- CN
- China
- Prior art keywords
- sintering
- district
- copper
- area
- coal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000005245 sintering Methods 0.000 title claims abstract description 87
- 239000002920 hazardous waste Substances 0.000 title claims abstract description 52
- 239000007787 solid Substances 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 17
- 230000008569 process Effects 0.000 title claims abstract description 14
- 229910000570 Cupronickel Inorganic materials 0.000 title claims description 13
- YOCUPQPZWBBYIX-UHFFFAOYSA-N copper nickel Chemical compound [Ni].[Cu] YOCUPQPZWBBYIX-UHFFFAOYSA-N 0.000 title claims description 13
- 239000003245 coal Substances 0.000 claims description 36
- 239000000463 material Substances 0.000 claims description 35
- 239000000428 dust Substances 0.000 claims description 26
- 239000002699 waste material Substances 0.000 claims description 24
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 22
- 229910052802 copper Inorganic materials 0.000 claims description 22
- 239000010949 copper Substances 0.000 claims description 22
- 238000002156 mixing Methods 0.000 claims description 21
- 239000000843 powder Substances 0.000 claims description 21
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 18
- 239000003546 flue gas Substances 0.000 claims description 18
- 238000001035 drying Methods 0.000 claims description 16
- 230000002159 abnormal effect Effects 0.000 claims description 15
- 238000002485 combustion reaction Methods 0.000 claims description 15
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 14
- 239000000203 mixture Substances 0.000 claims description 11
- 230000032683 aging Effects 0.000 claims description 9
- 229910052759 nickel Inorganic materials 0.000 claims description 8
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 7
- 238000012216 screening Methods 0.000 claims description 7
- 239000007789 gas Substances 0.000 claims description 6
- 238000006477 desulfuration reaction Methods 0.000 claims description 5
- 230000023556 desulfurization Effects 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- 239000008186 active pharmaceutical agent Substances 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 4
- 239000012257 stirred material Substances 0.000 claims description 4
- 239000002912 waste gas Substances 0.000 claims description 3
- 238000004064 recycling Methods 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 239000000126 substance Substances 0.000 description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 238000009423 ventilation Methods 0.000 description 4
- 239000003818 cinder Substances 0.000 description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 description 3
- 239000011707 mineral Substances 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 238000012797 qualification Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000005204 segregation Methods 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- RHZUVFJBSILHOK-UHFFFAOYSA-N anthracen-1-ylmethanolate Chemical compound C1=CC=C2C=C3C(C[O-])=CC=CC3=CC2=C1 RHZUVFJBSILHOK-UHFFFAOYSA-N 0.000 description 1
- 239000003830 anthracite Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000003500 flue dust Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 238000003746 solid phase reaction Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
- C04B33/132—Waste materials; Refuse; Residues
- C04B33/1325—Hazardous waste other than combustion residues
- C04B33/1327—Hazardous waste other than combustion residues containing heavy metals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/20—Combinations of devices covered by groups B01D45/00 and B01D46/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/75—Multi-step processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/80—Semi-solid phase processes, i.e. by using slurries
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8621—Removing nitrogen compounds
- B01D53/8625—Nitrogen oxides
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/02—Agglomerated materials, e.g. artificial aggregates
- C04B18/023—Fired or melted materials
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
- C22B1/16—Sintering; Agglomerating
- C22B1/214—Sintering; Agglomerating in shaft furnaces
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
- C22B1/24—Binding; Briquetting ; Granulating
- C22B1/2406—Binding; Briquetting ; Granulating pelletizing
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B15/00—Obtaining copper
- C22B15/0002—Preliminary treatment
- C22B15/001—Preliminary treatment with modification of the copper constituent
- C22B15/0013—Preliminary treatment with modification of the copper constituent by roasting
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/001—Dry processes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
-
- 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
- F27D17/008—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases cleaning gases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/30—Sulfur compounds
- B01D2257/302—Sulfur oxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/40—Nitrogen compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
-
- 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
- Y02P10/20—Recycling
-
- 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
-
- 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
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/60—Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Biomedical Technology (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Analytical Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Metallurgy (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Dispersion Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
本发明提供了一种固体危险废物烧结系统及烧结工艺,尤其涉及固体危险废物资源化处理设备技术领域,通过对配料区的危废物进行水分处理,异常危废处理以及配料处理,配制的烧结料各化学成分合格率高,各化学成分、水分、热值稳定,减少泥团、粉料、煤的离析现象,烧结炉炉况稳定、烧结炉通风良好,减少抽心、垮边、塔边等不正常现象,烧结炉产量提高。
Description
技术领域
本发明涉及固体危险废物资源化处理设备技术领域,尤其涉及一种含铜、镍固体危险废物烧结系统及烧结工艺。
背景技术
通常,含铜、含镍固体危险废物、煤、返粉按一定比例经过皮带秤计量后混合,通过皮带输送机进入烧结炉进行烧结,烧结产品经过筛分系统产生烧结块和筛分粉料,烧结粉料和除尘布袋灰俗称返粉,返回烧结料配料,烧结过程中产生的烧结烟气经过布袋除尘、湿法脱硫后,通过烟囱排放。这种烧结工艺存在以下缺点:1、由于烧结料各化学成分、水分、热值不稳定,而且泥团、粉料、煤产生离析现象,造成烧结炉炉况不稳定、烧结炉通风不良,经常出现抽心、垮边、塔边等不正常现象,烧结炉日产量低。
发明内容
针对现有技术中所存在的不足,本发明提供了一种含铜、镍固体危险废物烧结系统及烧结工艺,解决含铜、镍固体危险废物烧结系统经常出现抽心、垮边、塔边等不正常现象,烧结炉日产量低的问题。
根据本发明的实施例,一种含铜、镍固体危险废物烧结系统,包括依次连接的配料区、烧结区和空气处理区,所述配料区包括煤区和配料系统,所述配料系统负责对煤区的煤、返粉和危废物进行配料然后运输至所述烧结区,所述烧结区包括依次连接的烧结炉、筛分系统和结块储存室,所述筛分系统与所述配料系统连接并为所述配料系统提供返粉,所述空气处理区负责对烧结区产生的废气进行空气处理和排放,还包括位于所述配料区的并依次连接的水分处理区、异常危废处理区、两个铜分区和预混区,所述水分处理区包括干危废区和湿危废区,所述湿危废区后连接有烘干区,所述预处理区连接在所述配料系统之前。
一种含铜、镍固体危险废物烧结工艺,包括如下步骤:
步骤一:将水分含量≥68%的危废物放入所述湿危废区,将水分含量<68%的危废物放入所述干危废区,将湿危废区的危废物放入所述烘干区烘干至水分含量为40%-50%;
步骤二:将热值≥800千卡、氯离子含量≥0.8%、CaO含量≥30%的危废物放入所述异常危废处理区进行异常危废处理使其热值<700千卡,氯离子含量<0.6%,CaO含量<25%;
步骤三:将异常危废处理后的危废物以含铜量≥15%和<15%分别放入两个所述铜分区;
步骤四:将两个所述铜分区的危废物通过所述预混区混合成含铜量14%的混合料,然后陈列2天备用;
步骤五:将混合料84%与所述煤区的煤8%以及返粉8%通过所述配料系统混合成烧结料;
步骤六:将烧结料放入所述搅拌器进行搅拌然后置放于所述陈化区存放72小时,最后放入所述圆盘制球机进行制球;
步骤七:将制球完成的烧结料放入所述烧结炉进行烧结。
步骤八:将烧结的烟气通过布袋除尘器、SCR脱硝装置、RTO燃烧装置,再通过除雾器,最后通过烟囱排出无害的气体。
对比现有技术,本发明具有如下有益效果:
配制的烧结料各化学成分合格率高,各化学成分、水分、热值稳定,减少泥团、粉料、煤的离析现象,烧结炉炉况稳定、烧结炉通风良好,减少抽心、垮边、塔边等不正常现象,烧结炉产量提高;通过对烧结烟气的净化,使烟气粉尘浓度、NOx、SO2实现达标排放。烟气通过RTO燃烧装置燃烧后,使烟气中的异味消除。
附图说明
图1为本发明实施例含铜、镍固体危险废物烧结系统示意图;
1、配料区;11、水分处理区;2、预处理区;3、烧结区;4、空气处理区。
具体实施方式
下面结合附图及实施例对本发明中的技术方案进一步说明。
本发明实施例提出了一种含铜、镍固体危险废物烧结系统,如图1所示,一种含铜、镍固体危险废物烧结系统,包括依次连接的配料区1、烧结区3和空气处理区4,所述配料区1包括煤区和配料系统,所述配料系统负责对煤区的煤、返粉和危废物进行配料然后运输至所述烧结区3,所述烧结区3包括依次连接的烧结炉、筛分系统和结块储存室,所述筛分系统与所述配料系统连接并为所述配料系统提供返粉,所述空气处理区4负责对烧结区3产生的废气进行空气处理和排放,还包括位于所述配料区1的并依次连接的水分处理区11、异常危废处理区、两个铜分区和预混区,所述水分处理区11包括干危废区和湿危废区,所述湿危废区后连接有烘干区,所述预处理区2连接在所述配料系统之前。
配制的烧结料各化学成分合格率高,各化学成分、水分、热值稳定,减少泥团、粉料、煤的离析现象,烧结炉炉况稳定、烧结炉通风良好,减少抽心、垮边、塔边等不正常现象,烧结炉产量提高;
进一步地,所述煤区后还设有粉碎机和储煤库,所述储煤库与所述配料系统连接,将煤块进行粉碎后,将会更方便对煤块的配料,小块的煤块燃烧迅速,能和返粉和危废物混合更加均匀。
进一步地,还包括预处理区2,所述预处理区2位于所述配料区1之后以及所述烧结区3之前,所述预处理区2包括依次连接的搅拌器、陈化区和圆盘制球机。对混合好的危废物进行预处理,使其搅拌均匀后进行陈化,陈化能使其更加充分融合,使危废物燃烧充分,进行圆盘制球后,危废物大小均匀,燃烧均匀。
进一步地,所述空气处理区4包括依次连接的布袋除尘器、RTO燃烧装置、SCR脱硝装置、脱硫DS反应器、除雾器和烟囱,所述烟囱前还连接有烘干除尘器,所述烘干除尘器与所述烘干区连接。布袋除尘器用于将烧结后的气体中的粉尘过滤并返回到配料系统,RTO燃烧装置、SCR脱硝装置、脱硫DS反应器、除雾器分别对污染气体的有害物质、硝、硫和水分进行消除,最后排出干净无污染的气体。
本含铜、含镍固体危险废物烧结工艺如下:
含铜、含镍危险废物来自不同的厂家,类别有HW17、HW22、HW46、HW48,危险废物含铜量、贵金属含量、氟氯离子含量、热值含量、含水量等都不相同。为了满足烧结工艺和烧结烟气净化设施的要求,需要对进厂的含铜、含镍危险废物进行分类贮存。因此制定了以下步骤:
步骤一:将水分含量≥68%的危废物放入所述湿危废区,将水分含量<68%的危废物放入所述干危废区,水分≥68%的危废经均化后进入三筒体节能烘干机,入烘干三筒体温度750℃左右,除尘器温度控制在100℃左右,湿料经烘干后干粉水分控制在40%-50%,烘干机进料台式产量为10吨左右,每吨湿料消耗天然气为32m3左右;
步骤二:将热值≥800千卡、氯离子含量≥0.8%、CaO含量≥30%的危废物放入所述异常危废处理区进行异常危废处理使其热值<700千卡,氯离子含量<0.6%,CaO含量<25%;
步骤三:将异常危废处理后的危废物以含铜量≥15%和<15%分别放入两个所述铜分区;
步骤四:将两个所述铜分区的危废物通过所述预混区混合成含铜量14%的混合料,然后陈列2天备用;
步骤五:按照危险废物和竖烧炉的燃烧特性,选择热值为5500~6000千卡,挥发分为9%,水分8%的无烟煤,按照煤越细越燃烧充分燃烧块的要求,需要对进厂煤用粉碎机进行细碎,破碎后进入储煤库,将混合料84%与所述煤区的煤8%以及返粉8%通过所述配料系统混合;通过微机自动配料系统配料并经过立式搅拌机搅拌通过皮带输送机进入临时堆场;
步骤六:将混合料放入所述搅拌器进行搅拌然后置放于所述陈化区存放72小时,最后放入所述圆盘制球机进行制球;陈化,也叫闷料团存,目的是使原料颗粒疏解,泥团松散,水分匀化,使颗粒表面的水分渗入到颗粒内部,使干湿不均匀或搅拌不充分的泥料通过相互渗透而达到水分均匀一致。
步骤七:将制球完成的混合料放入所述烧结炉进行烧结;烧结料经72小时的陈化后用行车将料放置在烧结料供料斗中,通过皮带输送机进入圆筒混合制粒机或圆盘制球机制粒或制球。
烧结料水分:45%~52%,用圆筒混合制粒机制粒,烧结料比重为0.95。烧结料水分:40%~45%,用圆盘制球机制球,烧结料比重为0.8,成球率(5mm~12mm)为90%。圆筒混合制粒机规格为2.2×4.0米,圆盘制球机规格为3600mm。
烧结料经制粒或制球后通过皮带输送机进入竖烧炉(3.6×8米),通过布料器布料,台式产量为10吨/时,日产量240吨,除尘器温度控制在140℃~200℃(避免除尘器结露)。
烧结作业是烧结工艺的中心环节,竖式烧结炉烧结过程是自上而下进行的,沿其料层高度温度变化的情况一般可分为4层:干燥层、预热层、燃烧层(高温层)、冷却层。
干燥层受预热层上来的烟气加热,温度很快上升到100℃以上,烧结料中的游离水大量蒸发,230℃结晶水开始分解,此层厚度一般为l0-30mm左右。实际上干燥层与预热层难以截然分开,可以统称为干燥预热层。该层中烧结料被急剧加热,迅速干燥,易出现粉状,恶化料透气性,影响通风,所以烧结料的水分控制非常重要。
预热层:由燃烧层上来的高温烟气,把预热层的烧结料很快预热到着火温度,一般为400~800℃。此层内开始进行固相反应,结晶水及部分碳酸盐、硫酸盐分解。
燃烧层:燃料主要在该层燃烧,温度高达800~1300℃,使矿物软化熔融黏结成块。该层除燃烧反应外,还发生固体物料的熔化、还原、氧化以及石灰石和硫化物的分解等反应。
冷却层:烧结料中燃料燃烧放出大量热量,使料层中矿物产生熔融,随着燃烧层下移和冷空气的通过,生成的熔融液相被冷却而再结晶(1000—1100℃)凝固成网孔结构的烧结块。这层的主要变化是熔融物的凝固,伴随着结晶和析出新矿物,还有吸入的冷空气被预热,同时烧结块被冷却,和空气接触时低价氧化物可能被再氧化。
竖烧炉鼓风机为罗茨风机,高压电机功率为280KW,压力为35kPa,风量为346m3/分钟。
烧结块出炉后,通过链板输送机到振动筛对烧结料进行分离,粒度≤5mm的粉料通过拉链机、皮带输送机、链条提升机到粉库用于制砖。粒度≥5mm烧结块通过皮带输送机运至烧结块密闭堆场,用于还原炉熔炼。
高效布袋除尘器是确保烟气粉尘浓度达标排放(<10mg/m3)m3和确保换热器、RTO燃烧装置、SCR脱硝催化剂正常运行的可靠保证。
高效布袋除尘器按0.5米/分钟风速、漏气率<1%设计,采用PTFE布袋和高3.5米的高净气室。
引风机:功率:355KW,压升9500pa,风量:105000m3。除尘器温度控制在170℃左右,引风机后设置粉尘仪。
步骤八:将烧结的烟气通过布袋除尘器、SCR脱硝装置、RTO燃烧装置,再通过除雾器,最后通过烟囱排出无害的气体。
RTO燃烧装置采用两室RTO燃烧装置,美国切换技术,蓝泰克蓄热体。天然气用量≤60m3/小时
SCR脱硝装置按最高NOx设计(600mg/m3),脱硝后NOx≤60mg/m3。入SCR脱硝装置温度控制350℃左右。
脱硫DS反应器规格:φ3.6×12米,循环泵流量:900m3/小时,扬程:25米。采取强氧化曝气,脱硫浆液经真空过滤机脱水,生成石膏。进口烟气SO2浓度为1000~3000mg/m3,脱硫后为30mg/m3。
除雾器采用屋脊式除雾塔,确保雾滴粉尘浓度≤20mg。
烧结烟气通过以上环保设备、设施的净化,可确保烧结烟气达标排放(粉尘浓度≤8mg/m3,NOx≤50mg/m3,SO2≤50mg/m3)。
本技术的优点或有效效果:
采用含铜、含镍固体危险废物烧结工艺与现有技术相比,本技术带来如下有益效果:
通过多步骤精准配料、陈化,制球,使烧结炉日产量提高30%,煤耗降低15%。
通过对烧结烟气的净化,使烟气粉尘浓度、NOx、SO2实现达标排放。
烟气通过RTO燃烧装置燃烧后,使烟气中的异味消除。
最后说明的是,以上实施例仅用以说明本发明的技术方案而非限制,尽管参照较佳实施例对本发明进行了详细说明,本领域的普通技术人员应当理解,可以对本发明的技术方案进行修改或者等同替换,而不脱离本发明技术方案的宗旨和范围,其均应涵盖在本发明的权利要求范围当中。
Claims (5)
1.一种含铜、镍固体危险废物烧结系统,包括依次连接的配料区(1)、烧结区(3)和空气处理区(4),所述配料区(1)包括煤区和配料系统,所述配料系统负责对煤区的煤、返粉和危废物进行配料然后运输至所述烧结区(3),所述烧结区(3)包括依次连接的烧结炉、筛分系统和结块储存室,所述筛分系统与所述配料系统连接并为所述配料系统提供返粉,所述空气处理区(4)负责对烧结区(3)产生的废气进行空气处理和排放,其特征在于:还包括位于所述配料区(1)的并依次连接的水分处理区(11)、异常危废处理区、两个铜分区和预混区,所述水分处理区(11)包括干危废区和湿危废区,所述湿危废区后连接有烘干区,所述预混区连接在所述配料系统之前。
2.如权利要求1所述的一种含铜、镍固体危险废物烧结系统,其特征在于:所述煤区后还设有粉碎机和储煤库,所述储煤库与所述配料系统连接。
3.如权利要求1所述的一种含铜、镍固体危险废物烧结系统,其特征在于:还包括预处理区(2),所述预处理区(2)位于所述配料区(1)之后以及所述烧结区(3)之前,所述预处理区(2)包括依次连接的搅拌器、陈化区和圆盘制球机。
4.如权利要求1所述的一种含铜、镍固体危险废物烧结系统,其特征在于:所述空气处理区(4)包括依次连接的布袋除尘器、RTO燃烧装置、SCR脱硝装置、脱硫DS反应器、除雾器和烟囱,所述烟囱前还连接有烘干除尘器,所述烘干除尘器与所述烘干区连接。
5.一种含铜、镍固体危险废物烧结工艺,其特征在于:使用了如权利要求1所述的一种含铜、镍固体危险废物烧结系统,包括如下步骤;
步骤一:将水分含量≥68%的危废物放入所述湿危废区,将水分含量<68%的危废物放入所述干危废区,将湿危废区的危废物放入所述烘干区烘干至水分含量为40%-50%;
步骤二:将热值≥800千卡、氯离子含量≥0.8%、CaO含量≥30%的危废物放入所述异常危废处理区进行异常危废处理使其热值<700千卡,氯离子含量<0.6%,CaO含量<25%;
步骤三:将异常危废处理后的危废物以含铜量≥15%和<15%分别放入两个所述铜分区;
步骤四:将两个所述铜分区的危废物通过所述预混区混合成含铜量14%的混合料,然后陈列2天备用;
步骤五:将混合料84%与所述煤区的煤8%以及返粉8%通过所述配料系统混合成烧结料;
步骤六:将烧结料放入所述搅拌器进行搅拌然后置放于所述陈化区存放72小时,最后放入所述圆盘制球机进行制球;
步骤七:将制球完成的烧结料放入所述烧结炉进行烧结。
步骤八:将烧结的烟气通过布袋除尘器、SCR脱硝装置、RTO燃烧装置,再通过除雾器,最后通过烟囱排出无害的气体。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202010751130.4A CN111747727B (zh) | 2020-07-30 | 2020-07-30 | 一种含铜、镍固体危险废物烧结系统及烧结工艺 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202010751130.4A CN111747727B (zh) | 2020-07-30 | 2020-07-30 | 一种含铜、镍固体危险废物烧结系统及烧结工艺 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN111747727A true CN111747727A (zh) | 2020-10-09 |
CN111747727B CN111747727B (zh) | 2023-12-12 |
Family
ID=72712270
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202010751130.4A Active CN111747727B (zh) | 2020-07-30 | 2020-07-30 | 一种含铜、镍固体危险废物烧结系统及烧结工艺 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN111747727B (zh) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113145611A (zh) * | 2021-04-02 | 2021-07-23 | 张凯 | 一种利用煤燃烧设备协同处理有机危险废物的方法 |
CN113560323A (zh) * | 2021-08-04 | 2021-10-29 | 中野环保科技(重庆)股份有限公司 | 社会源危险废物焚烧残渣预处理方法及装置 |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006000128A1 (fr) * | 2004-06-28 | 2006-01-05 | Weitian Zhang | Procede et systeme pour cendre d'incineration de dechets |
US20080293559A1 (en) * | 2005-02-08 | 2008-11-27 | Cromotecnica Mexico | Process and Plant for Converting Hazardous Waste Containing Chromium VI Into Non-Hazardous Waste |
CN108411113A (zh) * | 2018-03-01 | 2018-08-17 | 浙江申联环保集团有限公司 | 一种危险废物的资源再生方法 |
CN109402399A (zh) * | 2018-12-10 | 2019-03-01 | 中国恩菲工程技术有限公司 | 处理危险废物的方法 |
CN109402414A (zh) * | 2018-11-06 | 2019-03-01 | 杨文� | 一种有机类与无机类危险废物耦合利用及协同处置的工艺 |
CN110306054A (zh) * | 2018-03-20 | 2019-10-08 | 荆门市格林美新材料有限公司 | 一种废旧线路板有价金属的回收方法 |
CN110976481A (zh) * | 2019-12-09 | 2020-04-10 | 洛南环亚源铜业有限公司 | 一种含铜危废处理工艺 |
CN111100719A (zh) * | 2019-12-18 | 2020-05-05 | 杭州电子科技大学 | 一种水洗飞灰衍生燃料制备方法 |
CN212610314U (zh) * | 2020-07-30 | 2021-02-26 | 湖北中环信环保科技有限公司 | 一种含铜、镍固体危险废物烧结系统 |
-
2020
- 2020-07-30 CN CN202010751130.4A patent/CN111747727B/zh active Active
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006000128A1 (fr) * | 2004-06-28 | 2006-01-05 | Weitian Zhang | Procede et systeme pour cendre d'incineration de dechets |
US20080293559A1 (en) * | 2005-02-08 | 2008-11-27 | Cromotecnica Mexico | Process and Plant for Converting Hazardous Waste Containing Chromium VI Into Non-Hazardous Waste |
CN108411113A (zh) * | 2018-03-01 | 2018-08-17 | 浙江申联环保集团有限公司 | 一种危险废物的资源再生方法 |
CN110306054A (zh) * | 2018-03-20 | 2019-10-08 | 荆门市格林美新材料有限公司 | 一种废旧线路板有价金属的回收方法 |
CN109402414A (zh) * | 2018-11-06 | 2019-03-01 | 杨文� | 一种有机类与无机类危险废物耦合利用及协同处置的工艺 |
CN109402399A (zh) * | 2018-12-10 | 2019-03-01 | 中国恩菲工程技术有限公司 | 处理危险废物的方法 |
CN110976481A (zh) * | 2019-12-09 | 2020-04-10 | 洛南环亚源铜业有限公司 | 一种含铜危废处理工艺 |
CN111100719A (zh) * | 2019-12-18 | 2020-05-05 | 杭州电子科技大学 | 一种水洗飞灰衍生燃料制备方法 |
CN212610314U (zh) * | 2020-07-30 | 2021-02-26 | 湖北中环信环保科技有限公司 | 一种含铜、镍固体危险废物烧结系统 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113145611A (zh) * | 2021-04-02 | 2021-07-23 | 张凯 | 一种利用煤燃烧设备协同处理有机危险废物的方法 |
CN113560323A (zh) * | 2021-08-04 | 2021-10-29 | 中野环保科技(重庆)股份有限公司 | 社会源危险废物焚烧残渣预处理方法及装置 |
Also Published As
Publication number | Publication date |
---|---|
CN111747727B (zh) | 2023-12-12 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN102206091B (zh) | 一种利用污泥制作陶粒的方法 | |
CN110396592B (zh) | 以锂矿石自燃为热源焙烧制锂盐的方法及焙烧装置 | |
CN111100719B (zh) | 一种水洗飞灰衍生燃料制备方法 | |
PL241588B1 (pl) | Sposób i instalacja do otrzymywania lekkiego kruszywa ceramicznego, zwłaszcza z popiołów po spaleniu węgla | |
CN102758090A (zh) | 一种电镀污泥的处理方法 | |
CN109306407B (zh) | 一种冶金含锌除尘灰治理及利用的装置和方法 | |
CN111747727A (zh) | 一种含铜、镍固体危险废物烧结系统及烧结工艺 | |
CN104446064A (zh) | 烟气脱硫生产水泥的装置及方法 | |
CN111270077A (zh) | 链板式高温还原炉处置钢铁厂收尘灰系统及方法 | |
CN110283996A (zh) | 一种节能环保的含铜污泥的冶炼方法 | |
CN109652653A (zh) | 一种无机危废系统工艺 | |
CN212610314U (zh) | 一种含铜、镍固体危险废物烧结系统 | |
CN108502884A (zh) | 一种生产电石用电石炉净化灰混兑生石灰粉压球成型的方法 | |
CN109748526B (zh) | 一种水泥窑资源化协同处置砷碱渣工艺系统与方法 | |
CN114774684A (zh) | 利用转底炉协同处置垃圾焚烧飞灰的方法及系统 | |
CN109420662A (zh) | 一种市政及冶金难处理固废协同资源化利用的系统 | |
KR100703112B1 (ko) | 금속 산화물 또는 제철 폐기물의 환원 처리 방법, 및 아연및/또는 납의 농축·회수 방법 | |
CN104529205A (zh) | 水泥生产装置及方法 | |
US5782973A (en) | Cement dust recovery system | |
CN107663587A (zh) | 净化含砷烟尘的系统和方法 | |
CN102319714B (zh) | 一种干法或半干法烟气脱硫渣处理工艺 | |
CN112246218A (zh) | 一种活性焦脱硫脱硝碎焦的回收重制装置及方法 | |
CN215887082U (zh) | 能够回用除尘灰的富锰渣生产系统 | |
CN220597334U (zh) | 一种高炉矿渣微粉制备与热风炉烟气净化处理系统 | |
CN219995337U (zh) | 一种处理高硫煤矸石的系统 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
CB02 | Change of applicant information | ||
CB02 | Change of applicant information |
Address after: 435200 circular economy industrial park, Fuchi Town, Yangxin County, Huangshi City, Hubei Province Applicant after: Hubei Xiangrui Environmental Protection Co.,Ltd. Address before: 435200 circular economy industrial park, Fuchi Town, Yangxin County, Huangshi City, Hubei Province Applicant before: Hubei zhonghuanxin Environmental Protection Technology Co.,Ltd. |
|
GR01 | Patent grant | ||
GR01 | Patent grant |