CN109231858A - A kind of pretreatment of electrolytic manganese residues and the innoxious and application technology as the second resource that concrete is combined with composite admixture is made - Google Patents
A kind of pretreatment of electrolytic manganese residues and the innoxious and application technology as the second resource that concrete is combined with composite admixture is made Download PDFInfo
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- CN109231858A CN109231858A CN201811354272.6A CN201811354272A CN109231858A CN 109231858 A CN109231858 A CN 109231858A CN 201811354272 A CN201811354272 A CN 201811354272A CN 109231858 A CN109231858 A CN 109231858A
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- 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
- C04B7/00—Hydraulic cements
- C04B7/14—Cements containing slag
- C04B7/147—Metallurgical slag
- C04B7/153—Mixtures thereof with other inorganic cementitious materials or other activators
- C04B7/17—Mixtures thereof with other inorganic cementitious materials or other activators with calcium oxide containing activators
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- 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
- C04B7/00—Hydraulic cements
- C04B7/36—Manufacture of hydraulic cements in general
- C04B7/38—Preparing or treating the raw materials individually or as batches, e.g. mixing with fuel
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- 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
- C04B7/00—Hydraulic cements
- C04B7/36—Manufacture of hydraulic cements in general
- C04B7/43—Heat treatment, e.g. precalcining, burning, melting; Cooling
- C04B7/44—Burning; Melting
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- 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
- C04B7/00—Hydraulic cements
- C04B7/36—Manufacture of hydraulic cements in general
- C04B7/43—Heat treatment, e.g. precalcining, burning, melting; Cooling
- C04B7/47—Cooling ; Waste heat management
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- 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
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
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- Inorganic Chemistry (AREA)
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Abstract
The invention belongs to trade waste Treatment process field, provides a kind of pretreatment of electrolytic manganese residues and the innoxious and application technology as the second resource that concrete is combined with composite admixture is made.The technology includes: (1) pretreatment；(2) concrete composite admixture is made.The technology be able to solve it is existing in the prior art cannot be removed effectively the pollution problems such as ammonia nitrogen and soluble heavy metal manganese Mn in electrolytic manganese residues, and electrolytic manganese residues can also be subjected to more thorough harmless treatment and comprehensive utilization of resources；The technology is applicable not only to the harmless treatment and comprehensive utilization of resources problem that larger electrolytic manganese enterprise produces the electrolytic manganese residues of the big scale of construction, the method that concrete is combined with composite admixture is made with concentration by dispersing innoxious pretreatment simultaneously, it solves in electrolytic manganese industrialization concentrated area, single electrolytic manganese enterprise scale is smaller and is difficult to reach the industry problems such as economic disposition scale.
Description
Technical field
The invention belongs to trade waste Treatment process fields, specifically, be related to a kind of electrolytic manganese residues pretreatment and
The innoxious and application technology as the second resource that concrete is combined with composite admixture is made.
Background technique
Electrolytic manganese residues are the acid waste residues of electrolytic manganese production process output, wherein major pollutants be soluble heavy metal from
Son, residual acid and ammonia nitrogen.Currently, electrolytic manganese residues comprehensive utilization of resources amount is few, comprehensive utilization of resources ratio is less than 20%.Electrolysis
Manganese slag is mainly disposed using modes such as landfill, stockpilings.However, taking the means such as landfill, stacking, not only land occupation resource, is made
Lead to pollutant in the environment so that pollutant penetrates into surrounding water and soil with rainwash at land resource pressure
Migration generates harm to human body directly or indirectly through food chain, but also results in waste of resources.For this purpose, to electrolytic manganese residues
Safe disposal and the utilization of resources are extremely urgent.
It is many about the harmlessness disposing of electrolytic manganese residues and resource utilization method, also have and practices case accordingly,
But because carrying out the pretreatment works such as harmlessness disposing without systematicness, resource utilization amount is caused to be very limited.
Electrolytic manganese residues comprehensive utilization of resources field is mainly in traditional construction material field, in addition to being limited by electrolytic manganese residues master above-mentioned
It wants outside pollutant, to be also limited by the higher sulfur content of electrolytic manganese residues as cement raw mix proportioning raw material and be easy to cause kiln system
Coating clogging, addition content receive limitation, as the cement ingredient raw material for replacing cement mixture and gypsum, because of ammonia in electrolytic manganese residues
Nitrogen content be easy to cause the foul gas uncontrollable discharge such as ammonia in cement production process and work progress, makes vehicle secondary pollution,
Construction site operating personnel is caused to face occupational health risk.
In addition, being related to harmless treatment and the application technology as the second resource of electrolytic manganese residues, the country also has many patented technologies public
It opens.It precipitates for example, soluble manganese salt, ammonium sulfate etc. are become indissoluble object using medicaments such as sodium carbonate, sodium phosphates, realizes nothing
Evilization processing, then does resource utilization again；However not only added reagent cost is high for this technology, but also is easy to cause in slag
Alkali content is higher, and in downstream, concrete application field is easy to cause alkali-aggregate reaction.In addition, also have electrolytic manganese residues are not done it is any
Pretreatment directly carries out high-temperature calcination；However this kind of foul gas of ammonia in flue gas gas is not only resulted in using this technology and is difficult to reach
Mark discharge, and calcine slag there are also ammonia salt presences, in addition because of gelling mineral not architectonical in gained calcining slag, cause it active compared with
Low, as cement mixture raw material, volume is relatively low, it is difficult to reach ideal techno-economic effect, in addition, constructing
In be also easy to cause ammonia uncontrollable discharge, form secondary pollution.There are also using " guanite " mode studies have shown that can be removed
Ammonia nitrogen in electrolytic manganese, but it is also faced with the problems such as process route is longer, investment is big, operating cost is high, and gained " birds droppings
Stone " is difficult to find that reasonable application approach.
For this purpose, finding a kind of with low investment, simple process, the harmless treatment and resource that removal is at low cost, removal effect is good
Change is particularly important using method.
In addition, domestic electrolytic manganese industry enterprise total size is less than normal, industry concentration ratio is low, in this case, single to be electrolysed
Manganese enterprise wishes to reach complete innoxious, disposal of resources purpose to its produced electrolytic manganese residues progress Systematic control.However, this
Kind hope is to be difficult to realize, first is that because being difficult to reach economic treatment scale, second is that because the country is to electrolytic manganese residues system
System property Treatment process because being related to the more engineering discipline field such as applied chemistry, silicate engineering, Thermal Power Engineering, concrete material,
So far do not formed completely also, do not see yet, harmless treatment obvious about electrolytic manganese residues reduction thoroughly, recycling application
The abundant and apparent real case of techno-economic effect.
For this purpose, being directed to electrolytic manganese industry status, carry out to adaptation to local conditions the produced pre- place of electrolytic manganese residues dispersion of each electrolytic manganese factory
The electrolytic manganese residues that combine of centralized processing are innoxious in reason and region and application technology as the second resource, similarly seem important.
Summary of the invention
For deficiency above-mentioned in the prior art, the object of the present invention is to provide a kind of pretreatment of electrolytic manganese residues and
The innoxious and application technology as the second resource that concrete is combined with composite admixture is made；The technology is able to solve in the prior art
It is existing to cannot be removed effectively the pollution problems such as ammonia nitrogen and heavy metal manganese Mn in electrolytic manganese residues, and electrolytic manganese residues can also be carried out
More thorough harmless treatment and comprehensive utilization of resources；The technology is applicable not only to larger electrolytic manganese enterprise and produces substantially
The harmless treatment and comprehensive utilization of resources problem of the electrolytic manganese residues of amount, while being also solution electrolytic manganese industrialization concentrated area
Interior, single electrolytic manganese enterprise scale is smaller and is difficult to reach the industry problems such as economic disposition scale.
In order to achieve the above object, the solution that the present invention uses is:
The pretreatment of a kind of electrolytic manganese residues and that the innoxious and recycling that concrete is combined with composite admixture is made is sharp
It with technology, includes the following links: (1) pre-processing: after high alkalinity material is stocked up, under closed subnormal ambient, with electrolysis
Manganese slag is that 10-20:100 is successively stirred mixing, ageing reaction, drying and first time gas treatment according to mass ratio, is obtained
Pre-process electrolytic manganese residues；(2) concrete composite admixture is made: breaing up pretreatment electrolytic manganese residues drying to obtain manganese powder；It will
Lime stone and correction material obtain formulated dry powder by drying, grinding respectively；Formulated dry powder is mixed with manganese powder, after homogenizing
To electrolytic manganese residues composite dry powder；Electrolytic manganese residues composite dry powder is first passed through into suspended preheater and decomposition furnace system obtains high temperature substrate
Material, high-temperature material then carry out high-temperature calcination obtain high-temperature calcination activation desulfurization manganese slag, activation desulfurization manganese slag successively through supercooling,
Composite admixture grinding and second of gas treatment.
A kind of electrolytic manganese residues provided by the invention dispersion pretreatment and region in centralized processing combine it is innoxious with
The beneficial effect of application technology as the second resource is:
(1) by pretreatment, ammonium sulfate in electrolytic manganese residues is excluded in the form of free state ammonia etc., avoids being located in advance
The innoxious electrolytic manganese residues of reason cause secondary pollution in the application of downstream field.Meanwhile it also can avoid subsequent concrete being made
With occurring the escaping of ammonia phenomenon in composite admixture link；
(2) pass through pretreated electrolytic manganese residues, it can be mixed as substitution cement (within the scope of electrolytic manganese factory 50KM) nearby
The difunctional additive of cement, materials for wall etc. that material and gypsum are used are closed, to expand the recycling application field of electrolytic manganese residues；
(3) during concrete composite admixture is made, pass through the high-temperature calcination activation and desulfurization to electrolytic manganese residues
Etc. processes, the lower electrolytic manganese residues of activity index can be become the mineral admixture with cementitious material performance, not only electrolytic manganese
Harmless treatment is more set thoroughly, and improves the application value of electrolytic manganese residues, in downstream concrete application field, is used
Amount will increase by a relatively large margin, can scale dispose electrolytic manganese residues, solve the problems, such as industry pain spot.
Detailed description of the invention
Fig. 1 is pretreating process flow chart provided in an embodiment of the present invention；
Fig. 2 is provided in an embodiment of the present invention concrete composite admixture process flow chart to be made.
Specific embodiment
It in order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below will be in the embodiment of the present invention
Technical solution be clearly and completely described.The person that is not specified actual conditions in embodiment, according to normal conditions or manufacturer builds
The condition of view carries out.Reagents or instruments used without specified manufacturer is the conventional production that can be obtained by commercially available purchase
Product.
Pretreatment to a kind of electrolytic manganese residues provided in an embodiment of the present invention below and concrete composite admixture is made
The innoxious and application technology as the second resource combined is specifically described.
It should be noted that only reaching economic disposition because the application uses high-temperature calcination to activate sulfur removal technology technology
Scale could embody certain economy.For this purpose, the technology is more suitable for, electrolytic manganese production capacity is larger, produces the quantity of slag reaches 500,000 tons or more
Electrolytic manganese enterprise；And, relative distribution smaller for those electrolytic manganeses enterprise production capacity, but position is relatively concentrated in again in a region,
Preferably take dispersion pretreatment with the method that combines of centralized processing, i.e., each electrolytic manganese look forward in its vicinity region suitable position because of ground system
Innoxious pretreatment base is preferably built, pretreated partial electrolyte manganese slag can be raw as cement in rationally sale radius region
Produce bifunctional material (instead of gypsum and mixing material) and the raw material of materials for wall etc. comprehensively utilized, then to it is remaining,
Rest part pre-processes electrolytic manganese residues and carries out pooling of resources utilization, i.e., " electrolytic manganese residues are high for the construction of heart suitable position in the zone
Warm calcining and activating desulfurization, and concrete composite admixture is made using activation desulfurization slag " project, to promote electrolytic manganese residues use
Value.Such application scheme can take into account single production capacity the produced electrolytic manganese quantity of slag of electrolytic manganese enterprise less than normal and be difficult to reach economical
The particular problems such as disposition scale, the sound development of holding area Inner electrolysis manganese enterprise.
The pretreatment of a kind of electrolytic manganese residues and that the innoxious and recycling that concrete is combined with composite admixture is made is sharp
With technology, include the following links:
(1) pre-process link: after high alkalinity material is stocked up, under closed subnormal ambient, with electrolytic manganese residues according to
Mass ratio is that 15-17:100 is successively stirred mixing, ageing reaction, drying and first time gas treatment, obtains pretreatment electricity
Solve manganese slag.
It should be noted that in the present embodiment, preconditioning technique refers to: utilizing the existing domain of each electrolytic manganese factory and correlation
Facility, adaptation to local conditions build the self-produced electrolytic manganese residues minimizing of each electrolytic manganese factory and harmless treatment production line, i.e., each electrolytic manganese
Factory carries out innoxious, minimizing using high alkalinity material (being further calcination raw material or active lime) and disposes electrolytic manganese
Slag (deamination drying, referred to as " pretreatment ").
Preconditioning technique is according to circumstances divided into two kinds: the first is suitble to electrolytic manganese enterprise to have cement within the scope of the 30KM of periphery
Factory, electrolytic manganese residues pre-treatment production line is built in cement kiln appropriate position.Second, that is, pre- place provided by the present application
Science and engineering skill are as follows: when electrolytic manganese look forward to nearby suitable position construction pre-treatment production line (pretreating process be suitble to electrolytic manganese look forward to away from
Be not suitable for the construction pre-treatment production line (more than 30KM or more) or near cement plant farther out from cement plant position).
Pretreating process provided by the present application are as follows: contour using manufacture of cement intermediate-calcination raw material and active lime
Alkaline material is to the harmful element of environment and ingredients such as residual acid, soluble heavy metal, ammonia nitrogens (ammonium sulfate) in electrolytic manganese residues
Carry out harmless treatment；The ammonia-contaminated gas from preprocessing process is carried out using electrolytic manganese factory production process Anodic liquid harmless
Change Treatment and recovery to utilize；
Specifically, in the present embodiment, Fig. 1 is please referred to:
A stock: prepare calcination raw material or active lime.It should be noted that preparing about calcination raw material: being in cement
In production process, under the premise of not influencing cement kiln main process and quality, preheater and decomposition will be passed through by special equipment
Furnace, the high-temperature material of kiln (calcination raw material) will be entered, go out according to the measurement with electrolytic manganese residues to be treated.It needs to illustrate
It is that in the present embodiment, calcination raw material are the intermediate product of manufacture of cement；The raw material of calcination raw material includes: according to parts by weight
67 parts of CaO, CaCO35 parts, SiO223 parts, Al2O36.6 parts, Fe2O33.5 parts and MgO2.3 parts；According to above-mentioned each component and its
There is the calcination raw material of proportion certain Pozzolanic feature to be able to ascend electrolytic manganese residues while harmlessness disposing electrolytic manganese residues
Activity is conducive to downstream sourcesization utilization.The amount of the calcination raw material of taking-up is limited with influencing kiln yield no more than 6%.Calcination is raw
It is spare that material enters the dedicated feed bin of calcination raw material after cooling.It should be noted that the preparation about active lime: a kind of approach
It is to be prepared by outsourcing mode, another way is then being made in concrete composite admixture region in the application, is utilized
Collaboration technique prepares high activity quick lime at low cost, this kind of high activity quick lime is greater than containing CaO higher, activity degree index
350ml.Specifically, in the present embodiment, the raw material of high activity quick lime includes: SiO according to parts by weight23.71 part,
Al2O32.85 parts, Fe2O32 parts, CaO87.41 parts, MgO1.73 parts and Na2O0.12 parts and SO30.41 part.Above-mentioned high alkalinity
Material and electrolytic manganese residues are that 10-20:100 is entered by conveying device and carries out mixing in mixing equipment according to mass ratio, with can
It is present in slag by acid residual in electrolytic manganese residues, soluble manganese and ammonium sulfate reaction removal or in the form of indissoluble object.
B mixing: carrying out ingredient by mixture basicity index, and it is defeated to be sent into the strong stirring that frequency conversion control range is 15-50Hz
It send equipment to carry out mixing to stir to abundant reaction, the first ammonia-contaminated gas generated in the process utilizes step (e) gas handling system
Negative pressure is sent into step (e) system mixing duct, and resulting solid material is sent into the ageing storage bin in step (c).
C ageing reaction: it will be sufficiently stirred obtained by step (a), the solid material of mixing is sent into closed ageing joint storage cavern
Carry out subregion storage.Tiny structure processing is carried out to closed ageing joint storage cavern；The range of tiny structure is (- 10Pa)-(- 50Pa).
It should be understood that subregion stores, i.e., joint storage cavern is divided at least four area, centre is separated with partition wall, functionally by its stroke
It is divided into: is storing up area with stockpiling area, 1 day phase ageing stockpiling area, the ageing of 2 day phase, 3 day phase stored up area.These stockpiling areas can basis
The storage period toggles.Feed system is can round-trip belt feeding (cloth) system.Material relies on band grab bucket in joint storage cavern
Driving batch turning back and forth.Meanwhile to accelerate ammonia-contaminated gas in removal material, need to drive a vehicle grab bucket stirring back and forth.Between crane operation
Layout, through transparent glass window, carries out outside closed joint storage cavern by the manipulation of artificial and manipulator.Reach regulation digestion time
The material of (2-3 days) enters the drying feeding bin of ageing joint storage cavern arranged alongside by grab bucket, then enters back into step (d)
In dryer.The second ammonia-contaminated gas is generated in ageing process enters step (e) system using step (e) gas handling system negative pressure
In mixing duct.
D drying: dryer will be entered by feeding measurement system from step (c) aged material.Baking in the present embodiment
Dry machine include but is not limited to be Multi-layer belt type dryer or rotary fair current or adverse current dryer, further include that can reach said function
Drying equipment.It should be noted that belt drying machine or the matched blower of rotary dryer and dryer carry out frequency conversion
Control, modification scope 15-50Hz.Its function is: first is that stirring back and forth, by the timely band of the ammonia-contaminated gas carried secretly in material
It walks, is conducive to reaction and carries out sufficiently；Second is that on the one hand properly increase material reaction temperature by drying hot wind, acceleration react into
Row；On the other hand contained humidity in material is dried, reaches minimizing purpose, moisture is controlled according to following resource Land use systems
It is determined, if you need to as the bifunctional material and materials for wall of mixing material and gypsum in cement can be replaced, then go out to dry
Material moisture need to control within less than 2%.It concrete is made is handled in composite admixture link if you need to be sent to, then gone out
Material drying moisture controls within 10%.
It should be noted that drying heat source used comes from coal dust or fuel gas hot-blast stove.Dryer temperature is according to electrolytic manganese residues
Following resource Land use systems are determined that generally, in the case, gas temperature is 150-300 DEG C in dryer, material temperature
About 100-120 DEG C of degree.It will such as need it to be sent to concrete is made to be handled in composite admixture link, in the case, dryer
Interior gas temperature is 70-90 DEG C, and aged material temperature is 60-50 DEG C.Material drying is according to its resource utilization mode difference point
The third ammonia-contaminated gas of dump region that Jin Ru be not different, generation enters step (e) using step (e) gas handling system negative pressure
In system mixing duct.
E first time gas treatment: the first ammonia-contaminated gas, the second ammonia-contaminated gas, third ammonia-contaminated gas are imported into gas sampling
In pipe network, using electrolytic manganese factory intermediate product-anolyte to the first ammonia-contaminated gas, the second ammonia-contaminated gas, third ammonia-contaminated gas into
Row washing, qualified discharge.In the present embodiment, anolyte is the sulfate liquid for being 35-45g/L containing concentration, which can
Ammonia-contaminated gas is eluted and recycled, to reduce medicament-ammonium hydroxide consumption in electrolytic manganese production process.
Then, by the electrolytic manganese residues of above-mentioned harmless treatment, it is applied to cement bifunctional material (i.e. generation nearby first
For cement mixture and manufacture of cement gypsum), raw material and roadbed material of materials for wall etc., to expand concrete application neck
Domain.Electricity apply completely, remaining, after deamination and after drying and dewatering is difficult to fields such as field of cement production, materials for walls
Concrete is made with carrying out Deep utilization in composite admixture link in solution manganese slag transport.
(2) concrete composite admixture link is made: breaing up the pretreatment electrolytic manganese residues drying to obtain electrolytic manganese residues and do
Powder；By lime stone and correction material respectively by drying, grinding arrive formulated dry powder；Formulated dry powder and electrolytic manganese residues dry powder are mixed
It closes, obtains electrolytic manganese residues composite dry powder after homogenizing；Electrolytic manganese residues composite dry powder is first passed through into suspended preheater and decomposition furnace system
High-temperature material is obtained, high-temperature material then carries out high-temperature calcination desulfurization and obtains activation desulfurization manganese slag, and activation desulfurization manganese slag successively passes through
Supercooling, composite admixture grinding and second of gas treatment.
Specifically, in the present embodiment, Fig. 2 is please referred to:
A drying is broken up: using equipment such as dedicated drying crushers, the electrolytic manganese residues pre-processed drying being broken up, is dried
The cooling high-temperature gas generated of high-temperature material provided with heat source from step (f), drying gas inlet temperature is 500-750
DEG C, drying air stream outlet temperature is not more than 200 DEG C.The drying crusher exit flow contains part and pre-processes halfway ammonia
Gas need to become gas at normal temperature, enter step the high-temperature material cooler front end blower of (f) by the portion gas by heat exchanger
Entrance is passed through activation desulfurization manganese slag material layer, the Secondary Air and tertiary air of forming step (e) kiln system, as the system of reduction
NOxIt uses, with ammonium hydroxide consumption costs needed for reducing step (e) denitration.Outside air passes through the hot-air formed after heat exchanger then
The primary of burner as kiln tail dore furnace uses wind.Drying forms moisture content less than 1.5%, the electrolysis of 200 mesh of fineness
Manganese slag dry powder, one of the raw material into special batching original library, as step (b) raw meal proportioning.
B drying, grinding and homogenizing include: that gelling mineral active index needed for activating desulfurization manganese slag according to high-temperature calcination is matched
Than raw limestone and correction material.Wherein, correction material includes school kaolin, quartz and iron powder；Industrial residue includes changing
Property ardealite, flyash and clinker.After these formula material metering proportions, then dried through dedicated vertical roll grinder, powder
Mill, formation moisture content is less than 1.5%, formulated dry powder of the fineness less than 200 mesh.The temperature of drying air-flow for drying is
180-300℃.Heat source is dried mainly from step (e) system waste heat flue gas, a small amount of heat supplement is from pulverized coal hot air furnace.It should
Formulated dry powder carries out batching with electrolytic manganese residues dry powder again, after after dedicated homogenizing storehouse homogenizing, forming component stabilization, material
Electrolytic manganese residues composite dry powder of the standard deviation less than 0.015%, enters step the suspended preheater and decomposition furnace system in (c).
C suspended preheater and decomposition furnace system: stable electrolytic manganese residues composite dry powder is homogenized through step (b) and enters suspension in advance
Hot device and decomposition furnace system.The system shares C1-C5 grades of suspended preheaters and a set of decomposition furnace system, electrolytic manganese residues composite dry powder
After C1-C4 grades of preheating and dryings are dehydrated, temperature of charge reaches 600-700 DEG C, subsequently into decomposition furnace system, in dore furnace
About 850-900 DEG C of temperature, wherein CaCO3And MgCO3It is most of to decompose, a small amount of CaSO4It decomposes, enters final stage preheater immediately
C5 carries out material gas separation, and material then enters step the high-temperature calcination system of (d), and gas then enters C4 and subsequent stages preheater,
Waste heat gas after C1 out initially enters boiler of power generation by waste heat system and carries out UTILIZATION OF VESIDUAL HEAT IN, out gas a part after warm-up power generation
The coal mill system for entering step (h) carries out drying grinding with coal to calcining, produces coal after grinding the purified dedusting of gas, go out with remaining
Boiler of power generation by waste heat sulfurous gas, which converges, enters step (g) gas handling system.
It should be noted that in the present embodiment, the process mechanism and cement industry of suspended preheater and decomposition furnace system
The suspension preheating and decomposition furnace system of the new type nonaqueous cement rotary kiln configuration generally used are almost the same.
D high-temperature calcination: the rotary kiln high-temperature calcination system that the material of step (c) enters step (d) out obtains activation desulfurization
Manganese slag.According to different temperatures section and material reaction behavior, for the rotary kiln of the system since feed end, front and back is divided into three
Band, i.e. intermediate zone, solid phase reaction band and clinkering zone.
Intermediate zone refers to: carbonate (CaCO3、MgCO3) continue to decompose here, sulfate (CaSO4) in calcining reduction
Under agent effect, starts to decompose herein, just occur the active free CaO of property in material；
Solid phase reaction band refers to: carbonate starts to decompose, and just occurs the active free CaO of property in material, and with
SiO in material2、Fe2O3And Al2O3Equal oxides carry out solid phase reaction, and reaction speed is accelerated as the temperature rises.With
This simultaneously, along with the raising of temperature of charge, CaSO4Etc. starting to decompose, it is decomposed to form the active free CaO of property, these are high
Active CaO, equally with the SiO in material2、Fe2O3And Al2O3Equal oxides carry out solid phase reaction, activate each in desulfurization manganese slag
Kind mineral are formed by multiple solid phase reaction, and solid phase reaction belongs to exothermic reaction.CaSO4Decompose the SO generated2Deng with cigarette
Gas largely overflows, wherein small part SO2Just it reacts to form sulfuric acid with the CaO generated in intermediate zone and C5, C4 preheater etc.
Calcium CaSO4, it is formed by CaSO4A part exists in the form of skinning, ring formation etc., another part CaSO4It is captured by material, again
It decomposes into intermediate zone and reacts in solid phase reaction band.Some aluminate then formed with solid phase reaction etc. is formed
Alite calcium sulfoaluminate minerals are present in activation desulfurization manganese slag.The various mineral activated in desulfurization manganese slag are by multiple solid phase
What reaction was formed, solid phase reaction belongs to exothermic reaction (480-500KJ/Kg), and temperature of charge in kiln will be made to increase 300 DEG C or so,
The material into clinkering zone is set to obtain abundant pre-burning.
Clinkering zone refers to: generating the C in activation desulfurization manganese slag in solid phase reaction4AF、C3A、C2S、C4A3The gelling mine such as S
Object.But the essential mineral C in clinker3S could will be formed largely in the liquid phase.When temperature of charge is increased to nearly 1300
DEG C when, C3A、C4AF、R2The fluxing minerals such as O will become liquid phase, most of C2S and CaO is molten by the liquid phase institute of high-temperature fusion quickly
Solution, this C being dissolved in liquid phase2S and CaO are reacted and generate 3CaOSiO (C3S)。
It should be noted that the novel dry that the process mechanism of rotary kiln high-temperature calcination system and cement industry generally use
Method rotary cement kiln system is almost the same, but based on ingredient main material-electrolytic manganese residues physical and chemical performance with ordinary cement raw material
Difference need to do following process modification and tune on the basis of the new type nonaqueous cement rotary system that cement industry generallys use
It is whole, form the invention rotary system for being suitable for calcining that electrolytic manganese residues are primary raw material:
Kiln resolution ratio will be entered to control as 60-70%, enter kiln resolution ratio 90-95% less than new type nonaqueous cement rotary kiln
Enter kiln resolution ratio；For anti-locking system skinning, Uptake flue at kiln end, kiln tail feeder pipe, kiln tail smoke-box etc. need to use resistive connection skin
The pouring material of fire resisting containing SiC, and be arranged more than light water stall about 20% resistive connection skin air bubble；The relatively same scale of rotary kiln
The big 20-25% of cement rotary kiln diameter, rotary kiln length are about 30-35%；Kiln tail smoke-box temperature is 850-900 DEG C；Rotary kiln
The firing temperature of high-temperature calcination system reduces about 150-200 DEG C with respect to ordinary cement calcination temperature, and kiln speed promotes about 5-10%.
E is cooling: it should be noted that in the present embodiment, the process mechanism and cement industry of high-temperature material cooling system
The new type nonaqueous cement rotary system generally used is almost the same.Specifically, step (d) rotary kiln high-temperature calcination system out
The activation desulfurization manganese slag of system is cooled down by grate cooler, the high-temperature gas about 900- that grate cooler front end portion is formed
1200℃.Secondary Air of a part of high-temperature gas as rotary kiln, another part enter kiln tail dore furnace as tertiary air.It combs
The temperature of formula cooler middle section is 600-900 DEG C, can be used as the heat source gas of drying crusher and raw material roller mill machine.
F composite admixture grinding: electrolytic manganese residues composite dry powder is formed by, with the compound of gelling mineral through high-temperature calcination
Substrate is according to " JG_T486-2015 concrete composite admixture " technical requirement, arrange in pairs or groups in proportion industrial residue and addition
Material, and closed-circuit ball mill intergrinding is utilized, concrete composite admixture is formed, concrete field is used for.In the present embodiment
In, industrial residue includes modified ardealite, flyash and clinker.
Second of gas treatment of g: such as the sulfurous gas through UTILIZATION OF VESIDUAL HEAT IN and purification of step (c), industry general character skill is utilized
Art enters relieving haperacidity or manganese product system, flue gas qualified discharge.
H fire coal is dried and grinding: step (c) preheater and decomposition furnace system, step (d) rotary kiln high-temperature calcination system,
The hot spot such as pulverized coal hot air furnace system, preheater bonus point solution hearthstone ash kiln system, is all made of pulverized coal combustion system, required coal dust is equal
It is dried using Raymond mill etc. and is prepared by grinding system.
Feature and performance of the invention are described in further detail with reference to embodiments.
Embodiment 1
Pre-process link: with active lime harmless treatment electrolytic manganese residues.The component of active lime is shown in Table shown in 1:
Table 1
| Title | SiO2 | Al2O3 | Fe2O3 | CaO | MgO | K2O | Na2O | SO3 |
| Active lime | 3.71 | 2.85 | 2.00 | 87.41 | 1.73 | 0.50 | 0.12 | 0.41 |
Active lime is compounded with electrolytic manganese residues according to mass ratio for 1:9, according to the step (b) in step (1)
Strong stirring mixing, and largely overflowed with ammonia, through detecting: ammonium sulfate is 3.3% in original state electrolytic manganese residues, agitated mixing
After nearly 30min, ammonium sulphate content is 1.15% in gained mixture, and ammonia flood rate reaches 67%.According to the step in step (1)
Suddenly (c) ageing storage 2.5d, during this period, stirring twice, carries out under ventilation condition per hour, detects ammonium sulfate in mixture
Content is 0.66%, and opposite original state electrolytic manganese residues, ammonia nitrogen removal reaches 80%.The step (d) being then passed through in step (1) is dried
It is dry, 210 DEG C of gas flow temperature average out to are dried, about 95 DEG C of temperature of charge, material is overturn in dryer to move ahead, further removing electricity
Manganese dregs mixing material material ammonia nitrogen and moisture are solved, when drying is through detecting: ammonium sulphate content is 0.32% in electrolytic manganese residues.
The present embodiment then carries out ammonia reduction amount and the comparative test of soluble manganese solidification effect is as follows:
Ammonia reduction amount: ammonia-contaminated gas is handled by electrolytic manganese residues intermediate-anolyte and personal cleansing tower, anode
Sulfuric acid content is 35g/L, ammonia level measured value ω 1=10g/nm in exhaust gas in liquid3, record chimney breast ammonia level measurement
Value ω 2=15mg/nm3, ammonia slip: η=(ω 1- ω 2)/ω 1 × 100% is calculated by following formula；In this implementation
In example, ammonia slip η reaches 99.9%.
Soluble manganese solidification effect: to the original state electrolytic manganese residues before feeding mixing plant according to GB/T 5085.3-2007
" hazardous waste judging standard leaching characteristic identification " is to its leachate Mn assay, measured value m1=1300mg/L, to warp
Electrolytic manganese residues after ageing storage and drying and processing, measuring its leachate object Mn content is m2 are as follows: 1.8mg/L is less than standard value
5mg/L calculates manganese fixed rate: ζ=(m1-m2)/m1 × 100% by following formula；In this example, manganese fixed rate η reaches
To 99.9% or more.
Embodiment 2
Concrete composite admixture link is made:
Calcining gained activation desulfurization manganese slag data are shown in Table 5:
The activation desulfurization manganese slag is arranged in pairs or groups industrial residue in proportion, utilizes closed-circuit ball mill intergrinding, is formed concrete and is used
Composite admixture meets " JG_T 486-2015 concrete composite admixture " technical requirement.
In conclusion the harmless of concrete composite admixture is pre-processed and is made using electrolytic manganese residues provided by the invention
Change and application technology as the second resource, being able to solve existing in the prior art not can effectively solve heavy metal manganese, ammonia in electrolytic manganese residues
The problems such as polluted by nitrogen.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of pretreatment of electrolytic manganese residues and the innoxious and resource utilization that concrete is combined with composite admixture is made
Technology, it is characterised in that: include the following links:
(1) it pre-processes: after high alkalinity material is stocked up, under closed subnormal ambient, with the electrolytic manganese residues according to quality
Than being successively stirred mixing, ageing reaction, drying and first time gas treatment for 10-20:100, pretreatment electrolytic manganese is obtained
Slag；
(2) concrete composite admixture is made: breaing up pretreatment electrolytic manganese residues drying to obtain manganese powder；By lime stone and
Correction material obtains formulated dry powder by drying, grinding respectively；The formulated dry powder is mixed with the manganese powder, after homogenizing
To electrolytic manganese residues composite dry powder；The electrolytic manganese residues composite dry powder is first passed through into suspended preheater and decomposition furnace system obtains high temperature
Material, the high-temperature material then carry out high-temperature calcination obtain high-temperature calcination activation desulfurization manganese slag, the activation desulfurization manganese slag according to
It is secondary through supercooling, composite admixture grinding and second of gas treatment.
2. the pretreatment of electrolytic manganese residues according to claim 1 and be made concrete combined with composite admixture it is harmless
Change and application technology as the second resource, it is characterised in that: in link (1),
A stock: prepare high alkalinity material；
B mixing: the electrolytic manganese residues and the high alkalinity material are sent into strong stirring conveying equipment and carry out mixing stirring, are generated
The first ammonia-contaminated gas input gas sampling pipe network in, resulting solid material is sent into ageing repository；
C ageing reaction: the solid material is sent into closed ageing joint storage cavern and carries out subregion storage, the second of generation is useless containing ammonia
Gas inputs in the gas sampling pipe network, and after ageing 2-3 days, resulting aged material enters in dryer；
D drying: the temperature of gas is 70-90 DEG C in the dryer, and the temperature of material is 50-60 DEG C in the dryer；Through
The dryer, which comes out, obtains material drying of the moisture less than 10%, and the third ammonia-contaminated gas of generation inputs the gas sampling pipe
In net；
E first time gas treatment: using electrolytic manganese factory intermediate product-anolyte to by first ammonia-contaminated gas, described second
Ammonia-contaminated gas, the third ammonia-contaminated gas are washed, qualified discharge.
3. electrolytic manganese residues according to claim 2 pretreatment be made concrete combined with composite admixture it is harmless
Change and application technology as the second resource, it is characterised in that: in link (2),
A drying is broken up: drying heat source is high-temperature gas, and drying gas inlet temperature is 500-750 DEG C, dries air stream outlet temperature
No more than 200 DEG C；Formation moisture content is less than 1.5% after drying, manganese powder described in 200 purpose of fineness；
B drying, grinding and homogenizing: it is small that the lime stone and the correction material are obtained into moisture content after drying, grinding
In 1.5%, fineness is less than formulated dry powder described in 200 purposes；The temperature of drying air-flow for drying is 180-300 DEG C；It is described
Formulated dry powder is mixed with the manganese powder, and electrolytic manganese residues composite dry powder of the material standard deviation less than 0.015% is formed after homogenizing；
C suspended preheater and decomposition furnace system: the electrolytic manganese residues composite dry powder enters suspended preheater and decomposition furnace system, obtains
To the high-temperature material；
D high-temperature calcination: the high-temperature material enters rotary kiln high-temperature calcination system and obtains activation desulfurization manganese slag；It controls and is decomposed into kiln
Rate is 60-70%；Relative to same scale cement rotary kiln, the big 20-25% of diameter of the rotary kiln high-temperature calcination system, revolution
The long 30-35% of kiln length；Kiln tail smoke-box temperature is 850-900 DEG C；Opposite ordinary cement calcination temperature, the rotary kiln high temperature are forged
The firing temperature of burning system reduces 150-200 DEG C；Opposite ordinary cement rotary kiln, kiln speed promote 10%；
E is cooling: the activation desulfurization manganese slag being cooled down by grate cooler, obtains activation desulfurization manganese slag；
F composite admixture grinding: the activation desulfurization manganese slag and industrial residue, additive etc., which mix, is milled to obtain concrete with multiple
Close admixture；
Second of gas treatment of g: the sulfurous gas through UTILIZATION OF VESIDUAL HEAT IN and purification is reached into relieving haperacidity or manganese product system, flue gas
Mark discharge.
4. electrolytic manganese residues according to claim 2 pretreatment be made concrete combined with composite admixture it is harmless
Change and application technology as the second resource, it is characterised in that: in link (1), the high alkalinity material includes calcination raw material or high activity stone
Ash.
5. electrolytic manganese residues according to claim 4 pretreatment be made concrete combined with composite admixture it is harmless
Change and application technology as the second resource, it is characterised in that: in link (1), the calcination raw material are the intermediate product of manufacture of cement；It is described
The raw material of calcination raw material includes: 60-67 parts of CaO, CaCO according to parts by weight33-5 parts, SiO219-25 parts, Al2O3 5.0-
8.0 parts, Fe2O32.0-3.5 part and 1-5 parts of MgO.
6. electrolytic manganese residues according to claim 4 pretreatment be made concrete combined with composite admixture it is harmless
Change and application technology as the second resource, it is characterised in that: the active lime is the quick lime that activity degree index is greater than 350ml；Institute
The raw material for stating high activity quick lime includes: SiO according to parts by weight22-5 parts, Al2O31.5-6 part, Fe2O31-3 parts, CaO 75-
88 parts, 0.5-2 parts of MgO and Na20.1-0.9 parts of O and SO30.2-1 parts.
7. electrolytic manganese residues according to claim 1 pretreatment be made concrete combined with composite admixture it is harmless
Change and application technology as the second resource, it is characterised in that: in link (1), tiny structure processing is carried out to the closed ageing joint storage cavern；
The range of the tiny structure is (- 10Pa)-(- 50Pa).
8. electrolytic manganese residues according to claim 2 pretreatment be made concrete combined with composite admixture it is harmless
Change and application technology as the second resource, it is characterised in that: in link (1), the anolyte contains the sulfuric acid liquid that concentration is 35-45g/L
Body.
9. electrolytic manganese residues according to claim 3 pretreatment be made concrete combined with composite admixture it is harmless
Change and application technology as the second resource, it is characterised in that: in link (2), the correction material includes kaolin, quartz and iron powder；
The industrial residue includes modified ardealite, flyash and clinker.
10. the pretreatment of electrolytic manganese residues according to claim 3 is the same as the nothing for concrete is made being combined with composite admixture
Evilization and application technology as the second resource, it is characterised in that: in link (2), Uptake flue at kiln end, the kiln tail feeder pipe of the rotary kiln
And kiln tail smoke-box uses the silicon carbide-containing fire resisting pouring material of resistive connection skin, and the resistive connection of the 19-21% more than light water stall is arranged
Skin air bubble.
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5916362A (en) * | 1996-11-22 | 1999-06-29 | Tosoh Corporation | Method for producing cement using manganese slag as raw material |
| CN102838364A (en) * | 2012-09-24 | 2012-12-26 | 通达耐火技术股份有限公司 | High-strength alkaline-resisting anti-skinning refractory castable |
| CN102923738A (en) * | 2012-11-15 | 2013-02-13 | 吉首大学 | Method for recovering water soluble manganese and magnesium from electrolytic manganese residue |
| CN103113029A (en) * | 2012-10-15 | 2013-05-22 | 新疆天山水泥股份有限公司 | Method for producing G-level high oil-resistant well cement clinker and cement clinker produced by method |
| CN104129937A (en) * | 2014-08-05 | 2014-11-05 | 重庆前跃环境治理有限公司 | Electrolytic manganese slag resource utilization process |
| CN105645793A (en) * | 2015-09-18 | 2016-06-08 | 花垣县强桦矿业有限责任公司 | Method using electrolytic manganese slag to manufacture active mixed material |
| CN107601926A (en) * | 2017-09-12 | 2018-01-19 | 昆山苏熙旺卡投资管理有限公司 | One kind is not easy sedimentation type cement formula and its preparation technology |
| CN108034818A (en) * | 2017-11-29 | 2018-05-15 | 中国科学院过程工程研究所 | Method for synchronously removing impurity elements in manganese sulfate leaching solution through in-situ neutralization and synergistic adsorption |
-
2018
- 2018-11-14 CN CN201811354272.6A patent/CN109231858A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5916362A (en) * | 1996-11-22 | 1999-06-29 | Tosoh Corporation | Method for producing cement using manganese slag as raw material |
| CN102838364A (en) * | 2012-09-24 | 2012-12-26 | 通达耐火技术股份有限公司 | High-strength alkaline-resisting anti-skinning refractory castable |
| CN103113029A (en) * | 2012-10-15 | 2013-05-22 | 新疆天山水泥股份有限公司 | Method for producing G-level high oil-resistant well cement clinker and cement clinker produced by method |
| CN102923738A (en) * | 2012-11-15 | 2013-02-13 | 吉首大学 | Method for recovering water soluble manganese and magnesium from electrolytic manganese residue |
| CN104129937A (en) * | 2014-08-05 | 2014-11-05 | 重庆前跃环境治理有限公司 | Electrolytic manganese slag resource utilization process |
| CN105645793A (en) * | 2015-09-18 | 2016-06-08 | 花垣县强桦矿业有限责任公司 | Method using electrolytic manganese slag to manufacture active mixed material |
| CN107601926A (en) * | 2017-09-12 | 2018-01-19 | 昆山苏熙旺卡投资管理有限公司 | One kind is not easy sedimentation type cement formula and its preparation technology |
| CN108034818A (en) * | 2017-11-29 | 2018-05-15 | 中国科学院过程工程研究所 | Method for synchronously removing impurity elements in manganese sulfate leaching solution through in-situ neutralization and synergistic adsorption |
Cited By (14)
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|---|---|---|---|---|
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| CN110963722A (en) * | 2019-12-27 | 2020-04-07 | 湖南省小尹无忌环境能源科技开发有限公司 | Method for producing active admixture by treating electrolytic manganese slag through non-homogenization process |
| CN110963721A (en) * | 2019-12-27 | 2020-04-07 | 湖南省小尹无忌环境能源科技开发有限公司 | Method for producing active admixture by utilizing dry-process cement plant transformation treatment manganese slag |
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| CN114394771A (en) * | 2022-01-04 | 2022-04-26 | 广西大学 | Method for resource utilization of manganese ore slag generated in manganese sulfate production process |
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