CN104984982B - Electrolytic manganese chromium slag innocent treatment method - Google Patents
Electrolytic manganese chromium slag innocent treatment method Download PDFInfo
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- CN104984982B CN104984982B CN201510403752.7A CN201510403752A CN104984982B CN 104984982 B CN104984982 B CN 104984982B CN 201510403752 A CN201510403752 A CN 201510403752A CN 104984982 B CN104984982 B CN 104984982B
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- 239000002893 slag Substances 0.000 title claims abstract description 94
- QDLZHJXUBZCCAD-UHFFFAOYSA-N [Cr].[Mn] Chemical compound [Cr].[Mn] QDLZHJXUBZCCAD-UHFFFAOYSA-N 0.000 title claims abstract description 72
- 238000000034 method Methods 0.000 title claims abstract description 40
- 238000005245 sintering Methods 0.000 claims abstract description 113
- 150000001875 compounds Chemical class 0.000 claims abstract description 41
- 239000002994 raw material Substances 0.000 claims abstract description 17
- 239000004744 fabric Substances 0.000 claims abstract description 10
- 239000003610 charcoal Substances 0.000 claims abstract description 9
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 claims description 68
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
- 239000003921 oil Substances 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 9
- 238000002156 mixing Methods 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 5
- 238000002203 pretreatment Methods 0.000 abstract description 8
- 230000008901 benefit Effects 0.000 abstract description 7
- 238000009825 accumulation Methods 0.000 abstract description 6
- 239000000047 product Substances 0.000 description 37
- 239000011651 chromium Substances 0.000 description 26
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 25
- 229910052804 chromium Inorganic materials 0.000 description 23
- 239000012071 phase Substances 0.000 description 18
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 5
- 239000002920 hazardous waste Substances 0.000 description 5
- 238000002386 leaching Methods 0.000 description 5
- 239000011572 manganese Substances 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 4
- 230000004907 flux Effects 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 229910052748 manganese Inorganic materials 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- QDOXWKRWXJOMAK-UHFFFAOYSA-N chromium(III) oxide Inorganic materials O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 239000002910 solid waste Substances 0.000 description 3
- 231100000419 toxicity Toxicity 0.000 description 3
- 230000001988 toxicity Effects 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 229910002091 carbon monoxide Inorganic materials 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 231100000614 poison Toxicity 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000002352 surface water Substances 0.000 description 2
- 239000003643 water by type Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000805 Pig iron Inorganic materials 0.000 description 1
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method 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
- 238000013459 approach Methods 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- BCFSVSISUGYRMF-UHFFFAOYSA-N calcium;dioxido(dioxo)chromium;dihydrate Chemical compound O.O.[Ca+2].[O-][Cr]([O-])(=O)=O BCFSVSISUGYRMF-UHFFFAOYSA-N 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- JOPOVCBBYLSVDA-UHFFFAOYSA-N chromium(6+) Chemical compound [Cr+6] JOPOVCBBYLSVDA-UHFFFAOYSA-N 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000000205 computational method Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000011669 selenium Substances 0.000 description 1
- 229910052711 selenium Inorganic materials 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000012265 solid product Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
- 229910021642 ultra pure water Inorganic materials 0.000 description 1
- 239000012498 ultrapure water Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Classifications
-
- 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
- Y02W30/78—Recycling of wood or furniture waste
Abstract
The invention discloses electrolytic manganese chromium slag innocent treatment method, comprise the following steps：（1）Pretreatment；（2）Igniting, cloth：Matches and timber are put into sintering furnace bottom first, then lighting a fire to burn timber to charcoal shape to smash is laid in sintering furnace bottom, high 5 6cm, then 4 5cm of last layer thickness that tile wooden chaff, be subsequently added into the standby compound of two shovels, thick 3 4cm after tiling；（3）Sintering；（4）Sieve, return mine：Sintering deposit finished product is sieved, by granularity<5mm sintering deposit finished product is returned mine as the raw material in pre-treatment step, and granularity >=5mm sintering deposit finished product is stored.The present invention, which has, to carry out harmless treatment to electrolytic manganese chromium slag, solve electrolytic manganese chromium slag slag storehouse accumulation problem, eliminate influence of the electrolytic manganese chromium slag to environment, obtain product stability stronger, it is easy to store, can bring the advantage of certain economic benefit.
Description
Technical field
The invention belongs to field of metallurgy, more particularly to a kind of electrolytic manganese chromium slag innocent treatment method.
Background technology
Electrolytic Manganese Metal Plant, which is used for a long time, chromium passivating, produces a large amount of hazardous waste chromium slags.Cr VI in chromium slag has
Very strong oxidisability, has strong basicity again, therefore chromium slag belongs to hazardous waste, is put into China《National Hazard waste name
Record》.The harm of chromium slag is huge, can only be stored in special chromium slag storehouse fixed point accumulation, but accumulation volume of cargo in storage over the years is considerable.If heap
The chromium slag deposited is outdoor to be placed, no rain-proof, antiseepage, it is anti-the protective equipment such as fly upward, can severe contamination surface water, underground water and
The mankind and environment are caused significant damage by soil.To solve the risk hidden danger and environmental problem in slag storehouse, it is badly in need of a kind of technique behaviour
Make simple, while the method that effective harmless treatment can be carried out to chromium slag again.
Chromium residue detoxifying method of comprehensive utilization has dry detoxified, cyclone furnace processing waste residue, does glass colorant, the sintering refining of chromium slag
Iron, the brickmaking of chromium slag, chromium slag cement, wet method detoxifcation etc..Existing document issue replaces portion of flux and iron charge mixing to burn with chromium slag
Ironmaking is tied and then goes, but the chromium slag of supplying can not be excessive, and less than 3% preferably, the chromium slag of supplying can influence the stability of raw material,
The quality of finished product sintering deposit can be reduced to a certain extent, increases the rate of return mine, increase the use of fuel.Chromium slag does flux sintering life
Iron, is to do reducing agent reduction of hexavalent chromium under the high temperature conditions with CO and C, this approach technology maturation feasible process, and removing toxic substances is thorough, into
This is relatively low, and substantially, substantially, chromium is eventually entered into the pig iron environmental benefit economic benefit, the chromium slag in document be generally production chromic salts and
The chromium residue discharged during crome metal, its CaO, content of MgO are higher, can replace portion of flux.The electricity that this patent is mentioned
Solution manganese chromium slag and the chromium slag mentioned in most of document are different, and the electrolytic manganese chromium slag CaO in this patent, content of MgO are very low,
It can not play a part of instead of flux.
The content of the invention
The goal of the invention of the present invention is to provide a kind of electrolytic manganese chromium slag innocent treatment method, and electrolytic manganese chromium slag is carried out into nothing
Evilization processing, solves electrolytic manganese chromium slag slag storehouse accumulation problem, eliminates influence of the electrolytic manganese chromium slag to environment, the sintering produced
Ore deposit stability is stronger, it is easy to store, and can bring certain economic benefit.
To achieve these goals, the present invention is achieved through the following technical solutions：
Electrolytic manganese chromium slag innocent treatment method, comprises the following steps：
（1）Pretreatment：Manganese oxide ore, electrolytic manganese chromium slag and anchracite duff are carried out respectively to be crushed to granularity≤5mm, then
By electrolytic manganese chromium slag：Manganese oxide ore is 1 according to weight ratio:6 ~ 20 with addition of also with addition of accounting for electrolytic manganese chromium slag, manganese oxide ore and return
The gross mass of ore deposit is returned mine for 0 ~ 40%, then with addition of accounting for the smokeless of electrolytic manganese chromium slag, manganese oxide ore and the gross mass 14 ~ 15% returned mine
Mixed 4 ~ 5 times with heap cone method shovel ore deposit after coal dust and obtain compound, then added water and cause the water content of compound for 7%-9%, it is standby
With；
（2）Igniting, cloth：Matches and timber are put into sintering furnace bottom first, then lights a fire and burns timber to wood
Smashed after charcoal shape and be laid in sintering furnace bottom, high 5-6cm, then the last layer thickness 4-5cm that tiles wooden chaff, be subsequently added into standby mixing
Material, thickness 3-4cm after tiling；
（3）Sintering：Open centrifugal AC air blower and carry out air blast, wind direction flows from the bottom up, it is then intermittent to walk
Suddenly（1）Standby compound adds sintering furnace, after out of service after centrifugal AC air blower operation 3-4h, changes single-phase air blast
Machine carries out compound sintering after air blast 8-12h and completed, then carries out compound after cooling 2-8h and be down to normal temperature closing single-phase air blower,
It can obtain sintering deposit finished product；
（4）Sieve, return mine：Sintering deposit finished product is sieved, by granularity<5mm sintering deposit finished product carries out conduct of returning mine
Raw material in pre-treatment step, granularity >=5mm sintering deposit finished product is stored.
In the present invention, the power of the single-phase air blower is 150W, and rotating speed is 2500-3000 r/min, and air quantity is
3.0-3.5m3/ min, blast is 450-500Pa.
In the present invention, the power of the centrifugal AC air blower is 80W, and rotating speed is 25000-30000 r/min, wind
Measure as 1.5-2.0m3/ min, blast is 220-300Pa.
In the present invention, the electrolytic manganese chromium slag accounts for overall weight percent≤8.8% of raw material.
In the present invention, the matches are to spoon the paper of oil, spoon the polybag of oil, the hay for spooning oil or pouring
The leaf oiled.
In the present invention, in electrolytic manganese chromium slag CaO content≤2%., MgO content≤3%.
The principle of the inventive method is：
Various granular materials are mainly heated at high temperature by oxide ore sintering mechanism, under conditions of endless running down,
Mineral grain is bonded by the liquid phase of sintering generation, the porous of similar coke and the sintering deposit with sufficient intensity is formed.
Harmless treatment electrolytic manganese chromium slag, is the high temperature reducing atmospheres condition based on sintering.In sintering process, electrolytic manganese
Cr VI and the abundant effect such as reducing agent C and CO in chromium slag, are reduced to trivalent chromium, electrolytic manganese chromium slag is reached innoxious place
Reason；CaO, MgO, FeO in sintering deposit etc., and and Cr2O3React, therefore the chromium in sintering deposit is main with picotite
( MgO·Cr2O3), the form such as chromite and calcium chromate is present electrolytic manganese chromium slag reduction product is more stablized.
Present invention has the advantages that：
1. by the present invention in that being sintered with updraught sintering method, it can be substantially reduced to blower fan pressure by the way of intermittent cloth
The requirement of power；Blower fan is air draught at normal temperatures, requires relatively low to blower fan capacitance, air blower may be mounted at ground, and factory building
Build fairly simple.
2. the present invention first carries out air blast in sintering stage using low power air blower, prevent that starting stage raw material is very few,
Wind-force crosses senior general's raw material and blows winged, and air velocity is too fast that heat energy in initial sintering stage sintering furnace can be caused largely to lose；By
The anthracite mixed after a few houres in the feed is ignited, and forms one layer of high temperature burning zone, and sintering starts, and with time lengthening gradually
Up elapse, the time of sintering can be shortened by changing powerful air blower progress air blast, and enough air quantity are provided for sintering, it is ensured that
Full combustion of fuel.
3. the electrolytic manganese chromium slag of mistake processed by the invention can detoxify completely, stability is greatly improved, and greatly reduces electrolysis
Harm of the outdoor accumulation of manganese chromium slag on environment influences, and eliminates slag storehouse accumulation hidden danger, electrolytic manganese chromium slag is comprehensively utilized, become
Evil is treasured, and present invention process is simple, and cost is low, and electrolytic manganese chromic wastes disposal amount is larger, and sintering deposit finished product is easy to shipping storage,
To environment without substantial pollution, more there is the meaning of positive important for the harmless treatment of electrolytic manganese chromium slag.
Brief description of the drawings
Fig. 1 is the flow chart of the present invention.
Embodiment
Below by way of specific embodiment, the invention will be further described.The invention is not limited in following specific implementations
Mode.
Embodiment 1：
Electrolytic manganese chromium slag innocent treatment method, comprises the following steps：
（1）Pretreatment：By manganese oxide ore, electrolytic manganese chromium slag and anchracite duff carry out being crushed to respectively granularity for 5mm, then
By electrolytic manganese chromium slag：Manganese oxide ore is 1 according to weight ratio:6 with addition of also with addition of accounting for electrolytic manganese chromium slag, manganese oxide ore and return mine
Gross mass is returned mine for 30%, then with addition of being shoveled with heap cone method after the anchracite duff for accounting for electrolytic manganese chromium slag and manganese oxide ore gross mass 14%
Ore deposit mixes 4 times and obtains compound, then adds water and causes the water content of compound to be 7%, standby；
（2）Igniting, cloth：First by spoon oil paper and timber be put into sintering furnace bottom, then light a fire by timber burn to
Smashed after charcoal shape and be laid in sintering furnace bottom, high 5cm, then the last layer thickness 4cm that tiles wooden chaff, be subsequently added into standby compound,
Thickness 3cm after tiling；
（3）Sintering：Opening power is 80W, and rotating speed is 25000 r/min, and air quantity is 1.5m3/ min, blast is 220Pa's
Centrifugal AC air blower carries out air blast, and wind direction flows from the bottom up, then intermittent by step（1）Standby compound is added
Sintering furnace, out of service after centrifugal AC air blower runs 3h, replacing power is 150W, and rotating speed is 2500 r/min, wind
Measure as 3.0m3/ min, blast carries out compound sintering after air blast 8h for 450Pa single-phase air blower and completed, then carries out cooling 2h
Compound is down to normal temperature and closes single-phase air blower afterwards, you can obtain sintering deposit finished product；
（4）Sieve, return mine：Sintering deposit finished product is sieved, by granularity<5mm sintering deposit finished product carries out conduct of returning mine
Raw material in pre-treatment step, granularity >=5mm sintering deposit finished product is stored.
Embodiment 2：
Electrolytic manganese chromium slag innocent treatment method, comprises the following steps：
（1）Pretreatment：By manganese oxide ore, electrolytic manganese chromium slag and anchracite duff carry out being crushed to respectively granularity for 4mm, then
By electrolytic manganese chromium slag：Manganese oxide ore is 1 according to weight ratio:9 with addition of also with addition of accounting for electrolytic manganese chromium slag, manganese oxide ore and return mine
Gross mass is returned mine for 25%, then with addition of after the anchracite duff for accounting for electrolytic manganese chromium slag, manganese oxide ore and gross mass 15% of returning mine using heap
Cone method shovel ore deposit, which is mixed 5 times, obtains compound, then adds water and causes the water content of compound to be 9%, standby；
（2）Igniting, cloth：The polybag and timber that spoon oil are put into sintering furnace bottom first, then lighted a fire timber
Burn to smashing after charcoal shape and be laid in sintering furnace bottom, high 5cm, then the last layer thickness 5cm that tiles wooden chaff, be subsequently added into standby mixing
Material, thickness 3cm after tiling；
（3）Sintering：Opening power is 80W, and rotating speed is 28000 r/min, and air quantity is 1.6m3/ min, blast is 240Pa's
Centrifugal AC air blower carries out air blast, and wind direction flows from the bottom up, then intermittent by step（1）Standby compound is added
Sintering furnace, after out of service after centrifugal AC air blower operation 4h, changes the power of single-phase air blower for 150W, rotating speed is
2800 r/min, air quantity is 3.2 m3/ min, blast carries out compound after air blast 12h for 490Pa single-phase air blower and sintered
Into, then carry out compound after cooling 8h and be down to normal temperature closing single-phase air blower, you can obtain sintering deposit finished product；
（4）Sieve, return mine：Sintering deposit finished product is sieved, by granularity<5mm sintering deposit finished product carries out conduct of returning mine
Raw material in pre-treatment step, granularity >=5mm sintering deposit finished product is stored.
Embodiment 3：
Electrolytic manganese chromium slag innocent treatment method, comprises the following steps：
（1）Pretreatment：By manganese oxide ore, electrolytic manganese chromium slag and anchracite duff carry out being crushed to respectively granularity for 3mm, then
By electrolytic manganese chromium slag：Manganese oxide ore is 1 according to weight ratio:13 with addition of, be added without and return mine, then with addition of account for electrolytic manganese chromium slag, oxidation
Mixed 5 times with heap cone method shovel ore deposit after manganese ore and the anchracite duff for gross mass 14% of returning mine and obtain compound, then added water so that mixing
The water content of material is 8%, standby；
（2）Igniting, cloth：The hay and timber that spoon oil are put into sintering furnace bottom first, then lights a fire and burns timber
Smashed after to charcoal shape and be laid in sintering furnace bottom, high 5.5cm, then the last layer thickness 4.5cm that tiles wooden chaff, be subsequently added into standby mixed
Close material, thickness 3.5cm after tiling；
（3）Sintering：Opening power is 80W, and rotating speed is 30000 r/min, and air quantity is 2.0m3/ min, blast is 300Pa's
Centrifugal AC air blower carries out air blast, and wind direction flows from the bottom up, then intermittent by step（1）Standby compound is added
Sintering furnace, out of service after centrifugal AC air blower runs 3.5h, replacing power is 150W, and rotating speed is 3000 r/min,
Air quantity is 3.5m3/ min, blast carries out compound sintering after air blast 9h for 500Pa single-phase air blower and completed, then is cooled down
Compound is down to normal temperature and closes single-phase air blower after 3h, you can obtain sintering deposit finished product；
（4）Sieve, return mine：Sintering deposit finished product is sieved, by granularity<5mm sintering deposit finished product carries out conduct of returning mine
Raw material in pre-treatment step, granularity >=5mm sintering deposit finished product is stored.
Embodiment 4：
Electrolytic manganese chromium slag innocent treatment method, comprises the following steps：
（1）Pretreatment：By manganese oxide ore, electrolytic manganese chromium slag and anchracite duff carry out being crushed to respectively granularity for 2mm, then
By electrolytic manganese chromium slag：Manganese oxide ore is 1 according to weight ratio:11 with addition of also with addition of accounting for electrolytic manganese chromium slag, manganese oxide ore and return mine
Gross mass returned mine for 20%, then with addition of using after the anchracite duff for accounting for electrolytic manganese chromium slag, manganese oxide ore and gross mass 15% of returning mine
Heap cone method shovel ore deposit, which is mixed 5 times, obtains compound, then adds water and causes the water content of compound to be 7%, standby；
（2）Igniting, cloth：The leaf and timber that spoon oil are put into sintering furnace bottom first, then lights a fire and burns timber
Smashed after to charcoal shape and be laid in sintering furnace bottom, high 5cm, then the last layer thickness 5cm that tiles wooden chaff, be subsequently added into standby mixing
Material, thickness 3.5cm after tiling；
（3）Sintering：Opening power is 80W, and rotating speed is 28000 r/min, and air quantity is 1.6m3/ min, blast is 240Pa's
Centrifugal AC air blower carries out air blast, and wind direction flows from the bottom up, then intermittent by step（1）Standby compound is added
Sintering furnace, after out of service after centrifugal AC air blower operation 3h, changes the power of single-phase air blower for 150W, rotating speed is
2800 r/min, air quantity is 3.2m3/ min, blast carries out compound after air blast 10h for 490Pa single-phase air blower and sintered
Into, then carry out compound after cooling 4h and be down to normal temperature closing single-phase air blower, you can obtain sintering deposit finished product；
（4）Sieve, return mine：Sintering deposit finished product is sieved, by granularity<5mm sintering deposit finished product carries out conduct of returning mine
Raw material in pre-treatment step, granularity >=5mm sintering deposit finished product is stored.
Embodiment 5：
Electrolytic manganese chromium slag innocent treatment method, comprises the following steps：
（1）Pretreatment：By manganese oxide ore, electrolytic manganese chromium slag and anchracite duff carry out being crushed to respectively granularity for 1mm, then
By electrolytic manganese chromium slag：Manganese oxide ore is 1 according to weight ratio:15 with addition of also with addition of accounting for electrolytic manganese chromium slag, manganese oxide ore and return mine
Gross mass returned mine for 10%, then with addition of using after the anchracite duff for accounting for electrolytic manganese chromium slag, manganese oxide ore and gross mass 15% of returning mine
Heap cone method shovel ore deposit, which is mixed 5 times, obtains compound, then adds water and causes the water content of compound to be 9%, standby；
（2）Igniting, cloth：The hay and timber that spoon oil are put into sintering furnace bottom first, then lights a fire and burns timber
Smashed after to charcoal shape and be laid in sintering furnace bottom, high 5.5cm, then the last layer thickness 4cm that tiles wooden chaff, be subsequently added into standby mixing
Material, thickness 3.5cm after tiling；
（3）Sintering：Opening power is 80W, and rotating speed is 26000 r/min, and air quantity is 1.8m3/ min, blast is 280Pa's
Centrifugal AC air blower carries out air blast, and wind direction flows from the bottom up, then intermittent by step（1）Standby compound is added
Sintering furnace, out of service after centrifugal AC air blower runs 3.5h, replacing power is 150W, and rotating speed is 2700 r/min,
Air quantity is 3.3m3/ min, blast carries out compound sintering after air blast 11h for 470Pa single-phase air blower and completed, then is cooled down
Compound is down to normal temperature and closes single-phase air blower after 6h, you can obtain sintering deposit finished product；
（4）Sieve, return mine：Sintering deposit finished product is sieved, by granularity<5mm sintering deposit finished product carries out conduct of returning mine
Raw material in pre-treatment step, granularity >=5mm sintering deposit finished product is stored.
Embodiment 6：
Electrolytic manganese chromium slag innocent treatment method, comprises the following steps：
（1）Pretreatment：By manganese oxide ore, electrolytic manganese chromium slag and anchracite duff carry out being crushed to respectively granularity for 3mm, then
By electrolytic manganese chromium slag：Manganese oxide ore is 1 according to weight ratio:20 with addition of also with addition of accounting for electrolytic manganese chromium slag, manganese oxide ore and return mine
Gross mass returned mine for 40%, then with addition of using after the anchracite duff for accounting for electrolytic manganese chromium slag, manganese oxide ore and gross mass 15% of returning mine
Heap cone method shovel ore deposit, which is mixed 4 times, obtains compound, then adds water and causes the water content of compound to be 8%, standby；
（2）Igniting, cloth：First by spoon oil paper and timber be put into sintering furnace bottom, then light a fire by timber burn to
Smashed after charcoal shape and be laid in sintering furnace bottom, high 6cm, then the last layer thickness 4.5cm that tiles wooden chaff, be subsequently added into standby mixing
Material, thickness 4cm after tiling；
In the present invention, the single-phase air blower.
In the present invention, the centrifugal AC air blower.
（3）Sintering：Opening power is 80W, and rotating speed is 28500 r/min, and air quantity is 1.9m3/ min, blast is 285Pa's
Centrifugal AC air blower carries out air blast, and wind direction flows from the bottom up, then intermittent by step（1）Standby compound is added
Sintering furnace, out of service after centrifugal AC air blower runs 3.5h, replacing power is 150W, and rotating speed is 2950 r/min,
Air quantity is 3.4m3/ min, blast carries out compound sintering after air blast 10h for 495Pa single-phase air blower and completed, then is cooled down
Compound is down to normal temperature and closes single-phase air blower after 2-8h, you can obtain sintering deposit finished product；
（4）Sieve, return mine：Sintering deposit finished product is sieved, by granularity<5mm sintering deposit finished product carries out conduct of returning mine
Raw material in pre-treatment step, granularity >=5mm sintering deposit finished product is stored.
Under be classified as the experiment of Application Example 1-6 progress, specific data are shown in Table 1：
The sintering proportioning of table 1
| Embodiment sequence number | Manganese oxide ore/kg | Electrolytic manganese chromium slag/kg | Return mine proportioning/% | Return mine weight/kg | Anchracite duff/% | Anchracite duff weight/kg | Mixture moisture/% |
| Embodiment 1 | 24 | 4 | 30 | 12 | 14 | 5.6 | 7 |
| Embodiment 2 | 27 | 3 | 25 | 10 | 15 | 6 | 9 |
| Embodiment 3 | 39 | 3 | / | / | 14 | 5.9 | 8 |
| Embodiment 4 | 22 | 2 | 20 | 6 | 15 | 4.5 | 7 |
| Embodiment 5 | 30 | 2 | 10 | 3.6 | 15 | 5.4 | 9 |
| Embodiment 6 | 20 | 1 | 40 | 14 | 15 | 5.3 | 8 |
Remarks：F represents to account for the percentage of returning mine of electrolytic manganese chromium slag, manganese oxide ore and the gross mass returned mine；
The computational methods for weight of returning mine：（Electrolytic manganese chromium slag+manganese oxide ore）×F /(1-F).
The electrolytic manganese chromium slag of table 2 accounts for the overall weight percent list position of raw material：%
| Embodiment | 1 | 2 | 3 | 4 | 5 | 6 |
| Percentage | 8.8 | 6.5 | 6.3 | 5.8 | 4.9 | 2.5 |
Remarks：Raw material includes manganese oxide ore, electrolytic manganese chromium slag, returned mine and anchracite duff.
The physical property of the sintering deposit finished product obtained using the specific proportioning of each embodiment in table 1, is shown in Table 3；Wherein, into
Product sintering deposit drop strength is tested：Finished product sintering deposit is continuously fallen 3 times from 2m eminences, the finished product sintering deposit more than 5mm accounts for
The percentage of lower experiment sample ore is drop strength index.
The physical property of the sintering deposit finished product of table 3
| Embodiment sequence number | Material weight/kg before burning | Weight/kg after burning | Scaling loss/% | Yield rate % | The rate of return mine/% | Intensity/% |
| Embodiment 1 | 45.6 | 38.12 | 16.4 | 70.3 | 29.7 | 86.87 |
| Embodiment 2 | 46 | 37.35 | 18.80 | 71.4 | 28.6 | 87.8 |
| Embodiment 3 | 47.9 | 37.97 | 20.73 | 75.5 | 24.5 | 86.2 |
| Embodiment 4 | 34.5 | 27.2 | 21.16 | 74 | 26 | 87.0 |
| Embodiment 5 | 41 | 34.73 | 15.30 | 72.9 | 27.1 | 88.4 |
| Embodiment 6 | 40.3 | 34.39 | 14.67 | 72.4 | 27.6 | 86.3 |
Understood with reference to table 2 and the data of table 3：When the overall weight percent that electrolytic manganese chromium slag accounts for raw material is less than 8.8%, finished product
Rate can reach more than 70%；The intensity of sintering deposit can meet requirement of the blast furnace to sintering deposit more than 85%.
Sintering deposit toxicity judges
Sintering deposit sample presentation to chemical industry environmental protection monitoring station is detected into sintering deposit Leaching, it the results are shown in Table 4.Held with reference to solid waste
Rower is accurate《Hazardous waste judging standard leaching characteristic identification》（GB 5085.1-2007）With《Hazardous waste judging standard corrodes
Property differentiate》（GB 5085.1-2007）, its partial excerpt is shown in Table 5.
Solid waste Leaching leaching method-horizontal vibration method
According to People's Republic of China's state environment protecting standard（HJ 557-2009）Operated with reference to this sintering experiment
Horizontal vibration method it is as follows：
（1）Method And Principle
Using ultra-pure water as digestion agent, simulation solid waste is leached in specific occasion by surface water or underground water, its
In harmful constituent leach and enter environment process.
（2）Instrument and equipment
Oscillator device：The reciprocating horizontal oscillation device of frequency-adjustable
Extraction flask：Use for laboratory 250ml conical flasks
Balance：Precision is not less than ± 0.01g
Filter：Funnel and filter paper
（3）Sample
1. gather：Granularity is less than 1mm after sintering deposit sampling milling, milling
2. sample preparation：20g sintering deposit samples are taken to be dissolved in 200ml ultra-pure waters, liquid-solid ratio is 10:1（ml / g）
（4）Experimental procedure
1. measurement of water-content coefficient：Because sintering deposit moisture-free, 2. step operation is directly carried out
2. step is leached：20 g sintering deposit samples are weighed, are placed in 250 ml conical flasks, by liquid-solid ratio 10:1（ml / g）
200 ml ultra-pure waters of addition are measured, covers tightly and is vertically fixed on after bottle cap on horizontal shaking device, regulation frequency of oscillation is 110 ± 10
Secondary/min, amplitude is 35~40 mm, is removed after 8 h are vibrated at room temperature, stands filtering liquor charging sample detection Mn after 16 h, standing
And Cr contents（It the results are shown in Table 4）.
The sintering deposit toxicity of table 4 leaches analysis result
Remarks：In addition to pH value project, unit is mg/l；Project is not detected fills " L " expression after detection limit.
The hazardous waste judging standard leaching characteristic identification of table 5（Take passages）（Unit：mg/l）
| Pollution factor | Numerical value |
| Copper | 100 |
| Zinc | 100 |
| Lead | 5 |
| Cadmium | 1 |
| Mercury | 0.1 |
| Arsenic | 5 |
| Total chromium | 5 |
| Nickel | 5 |
| Iron | / |
| Manganese | / |
| Selenium | 1 |
Comparison sheet 4 and table 5 understand that every toxicity of sintering deposit leaches element within standard limited value.Illustrate chromium slag and
The sintering deposit that oxide ore is burnt is not poisonous solid, belongs to general solid product, can produce economic benefit.Horizontal vibration method
PH value is 6.17, is not belonging to corrosive solid.
Claims (5)
1. electrolytic manganese chromium slag innocent treatment method, it is characterised in that comprise the following steps：
(1) pre-process：Manganese oxide ore, electrolytic manganese chromium slag and anchracite duff are crushed to granularity≤5mm respectively, then by electrolytic manganese
Chromium slag, manganese oxide ore are 1 according to weight ratio:6~20 with addition of also with addition of accounting for electrolytic manganese chromium slag, manganese oxide ore and the total matter returned mine
Measure and returned mine for 0~40%, then with addition of the anchracite duff for accounting for electrolytic manganese chromium slag, manganese oxide ore and the gross mass 14~15% returned mine
Mixed 4~5 times with heap cone method shovel ore deposit afterwards and obtain compound, then added water and cause the water content of compound for 7%-9%, it is standby
With；
(2) igniting, cloth：Matches and timber are put into sintering furnace bottom first, then lights a fire and burns timber to charcoal shape
After smash and be laid in sintering furnace bottom, high 5-6cm, then the last layer thickness 4-5cm that tiles wooden chaff, be subsequently added into the standby mixing of two shovels
Material, thickness 3-4cm after tiling；
(3) sinter：Open centrifugal AC air blower and carry out air blast, wind direction is moved from the bottom up, it is then intermittent by step (1)
Standby compound adds sintering furnace, after out of service after centrifugal AC air blower operation 3-4h, change single-phase air blower and enters
Compound sintering is completed after row air blast 8-12h, then is carried out compound after cooling 2-8h and be down to normal temperature, closes single-phase air blower, i.e.,
It can obtain sintering deposit finished product；
(4) sieve, return mine：Sintering deposit finished product is sieved, by granularity<5mm sintering deposit finished product is returned mine as pre- place
The raw material in step is managed, granularity >=5mm sintering deposit finished product is stored.
2. electrolytic manganese chromium slag innocent treatment method according to claim 1, it is characterised in that the single-phase air blower
Power is 150W, and rotating speed is 2500-3000r/min, and air quantity is 3.0-3.5m3/ min, blast is 450-500Pa.
3. electrolytic manganese chromium slag innocent treatment method according to claim 1, it is characterised in that the centrifugal exchange drum
The power of blower fan is 80W, and rotating speed is 25000-30000r/min, and air quantity is 1.5-2.0m3/ min, blast is 220-300Pa.
4. electrolytic manganese chromium slag innocent treatment method according to claim 1, it is characterised in that the electrolytic manganese chromium slag is accounted for
Overall weight percent≤8.8% of raw material.
5. electrolytic manganese chromium slag innocent treatment method according to claim 1, it is characterised in that the matches are pouring
The paper that oils, the polybag for spooning oil, the hay for spooning oil or the leaf for spooning oil.
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