CN107382359B - A kind of method and its product with lateritic gold ore tailings baking ceramsite - Google Patents
A kind of method and its product with lateritic gold ore tailings baking ceramsite Download PDFInfo
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- CN107382359B CN107382359B CN201710775176.8A CN201710775176A CN107382359B CN 107382359 B CN107382359 B CN 107382359B CN 201710775176 A CN201710775176 A CN 201710775176A CN 107382359 B CN107382359 B CN 107382359B
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- lateritic
- tailings
- gold ore
- haydite
- gold
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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
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/009—Porous or hollow ceramic granular materials, e.g. microballoons
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
- C04B33/132—Waste materials; Refuse; Residues
-
- 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
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/06—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by burning-out added substances by burning natural expanding materials or by sublimating or melting out added substances
- C04B38/063—Preparing or treating the raw materials individually or as batches
- C04B38/0635—Compounding ingredients
- C04B38/0645—Burnable, meltable, sublimable materials
- C04B38/068—Carbonaceous materials, e.g. coal, carbon, graphite, hydrocarbons
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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
- Y02P40/60—Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes
Abstract
The invention discloses a kind of method and its product with lateritic gold ore tailings baking ceramsite, its method for cooking comprises the following steps：(1) by lateritic gold ore tailings, iron tailings and coal dust in mass ratio 1.000:0.250~0.500:0.045~0.085 proportioning, it is well mixed to obtain solid mixture；(2) water for accounting for the solid mixture mass percent 15%~30% is added into solid mixture, is mixed evenly, that is, obtains solidliquid mixture；(3) haydite base is made in solidliquid mixture, the haydite base for then being dried haydite base progress drying and processing；(4) the haydite base of drying is calcined 5~20 minutes at a temperature of 1050~1350 DEG C, haydite is obtained after cooling.The present invention is improved by specific species of key raw material used by method for cooking etc., is realized changing waste into resources of the lateritic gold ore tailings in haydite preparation compared with prior art and is utilized.
Description
Technical field
The invention belongs to production of construction materials field, more particularly, to a kind of side with lateritic gold ore tailings baking ceramsite
Method and its product, this method is to use Lateritic Soil gold mine tailing as primary raw material, and adds a small amount of iron tailings and coal dust, and firing obtains
Light ceramic.
Background technology
Gold concentrator tailings are mining slags caused by after being extracted gold from from gold mine, handled at present with stockpiling based on, not only
Need to occupy large stretch of soil, and environmental pollution can be brought.Lateritic gold ore tailings, such as Hubei Province Jiayu County snake room Gold Mine
The gold concentrator tailings of Co., Ltd's discharge, different from rock type mine tailing in physicochemical properties, concrete analysis is as follows.
Most domestic gold mine belongs to rock type gold mine, by gravity separation method or the grain of the gold concentrator tailings of extract technology rock type
The general fine uniform in footpath, and property approaches with quartz sand mineral, can be used directly as fine aggregate, or as siliceous material
It is directly used in the production of autoclaved lime-sand brick；SiO in rock type gold mine tailing simultaneously2Content it is higher, therefore rock type gold mine tailing ratio
It is easier to be used as the raw materials for production of various building materials, resource utilization rate is higher.
And Lateritic Gold Deposit, category is severely-weathered to remain a kind of Pengjiakuang type to be formed, with rock type gold mine in composition, property
A great difference in matter be present.Lateritic Gold Deposit basement rock is mostly the sedimentary rocks containing carbonate rock, along the rift structure in basement rock
Development has primary gold ore layer or gold deposit.1980, Western Australia was found that Bo Dingdun (Boddington) is large-scale red first
Soil type gold mine.China was found that similar weathering origin cause of formation gold deposit in 1989 in the She Wushan of Jiayu, Hubei first.This
Lateritic gold ore tailings used in invention come from Hubei Province Jiayu County She Wu Gold Mines Co., Ltd.Snake room mountain gold
Green ore be secondly goethite and chlorite based on kaolinite and illite, a small amount of gibbsite, and have micro montmorillonite with
Anatase；Mineralogical composition includes the stone of clay mineral, the oxide of iron and aluminium and hydroxide, precious metal minerals and basement rock residual
English, feldspar etc.；Chemical composition is mainly SiO2、Al2O3And Fe2O3, secondary is MnO2And TiO2.The eluviation of rainwater is by Lateritic Soil
Substantial amounts of silicon, more readily soluble metal ion are removed in gold mine, and relatively immiscible thing (such as iron) is concentrated, and clay dyes red by iron；
Meanwhile gold obtains rich product, clay has the function that ADSORPTION OF GOLD during laterization desilication as iron.The present invention is main
To utilize object can be mine tailing of the Lateritic Gold Deposit using discharge after wet underwater welding gold.The a large amount of heaps of lateritic gold ore tailings
Product, resource utilization rate is very low, not only takes a large amount of soils, and stockyard easily occur mud-rock flow surrounding environment is caused it is huge
Harm.
In addition, containing a large amount of clays in lateritic gold ore tailings, it is mingled with 10% or so country rock and horsestone, and country rock
It is very uneven with the particle size and distributed number of horsestone.This brings many tired to lateritic gold ore tailings recycling
It is difficult.Therefore, it is necessary to sieve pretreatment, the bulky grain stone such as country rock and horsestone is removed.
Finally, many haydites can be using heavy oil as pore creating material during actual production.Heavy oil calorific value is high, releases during burning
The gas put can play a part of pore creating material, can greatly reduce the bulk density of haydite.Heavy oil is liquid, therefore is also had concurrently
It is easier to the advantages of solidliquid mixture is well mixed.But heavy oil is the rich product of fossil industry, although calorific value is high, gas production
Greatly, but heavy oil can produce a large amount of odorous gas during baking ceramsite, and surrounding air environment can be caused to have a strong impact on.
There are some methods with golden mine tailing baking ceramsite at present.But had the following disadvantages in these methods：(1) patent CN
In 102503366A, it uses rock type gold mine tailing, and for raw material production haydite, the volume of the coal dust in Ceramsite formula is left 10%
The right side, therefore the cost of material of this haydite is very high.(2) haydite near the She Wu Gold Mines Co., Ltd of Hubei Province Jiayu County
Factory is that raw material produces haydite using lateritic gold ore tailings, from heavy oil as pore creating material.The production process of this haydite
A large amount of sulfur-containing compound stink waste gas can be produced, and cause air pollution, are complained by the environmental protection of nearby residents.(3) patent
In document CN 103288421A, it is that raw material produces haydite with rock type gold mine tailing using Yellow river silt sand, and haydite prepares flow
It is sufficiently complex, the problems such as preheating repeatedly can be usually introduced, it reduce the operability of scheme.(4) patent document CN
In 102503366A, it is that raw material produces haydite using rock type gold mine tailing, except the volume of coal dust needs satisfaction 8%~10%
Outside, the ceramsite sintering time is generally partially long, typically in 2-2.5 hours；Long-time high-temperature firing greatly enhances energy consumption, adds
High production cost.(5) in patent document CN 101580349A, it is produced using rock type gold mine tailing and flyash for raw material
Haydite, other chemical agents are used during Feedstock treating；This operation improves production cost while reduces scheme
Operability.It can be seen that or existing light ceramic production technology using raw mineral materials such as natural shale, or use with quartz
River sand or rock type gold concentrator tailings for main mineral constituent are raw material, and such as how kaolinite and illite are main mineral composition
Lateritic Soil mine tailing be primary raw material, component prescription reasonable in design, the excellent light ceramic of processability is patent of the present invention
The technical issues that need to address.
In summary, need a kind of low, easy to operate, the environmentally friendly firing Lateritic Soil of production cost badly instantly and select golden tail
The method of ore deposit haydite.
The content of the invention
For the disadvantages described above or Improvement requirement of prior art, gold is selected with Lateritic Soil it is an object of the invention to provide one kind
The method and its product of mine tailing baking ceramsite, wherein specific species by key raw material used by method for cooking etc. is entered
Row improves, and using lateritic gold ore tailings as raw material, and iron tailings and coal dust is utilized simultaneously, by entering to the proportioning of three kinds of raw material
Row optimization, using the overall co-ordination of these three raw material, firing obtains light ceramic；Compared with prior art, on the one hand due to
Using lateritic gold ore tailings rather than rock type type gold concentrator tailings as primary raw material, and iron tailings is added as constituent adjustment component,
The changing waste into resources utilization for realizing lateritic gold ore tailings, iron tailings etc. (especially, is used based on quartz in existing literature
Want mineralogical composition river sand or rock type gold concentrator tailings be raw material production haydite, wherein haydite intensity be mainly derived from containing
The mineral such as siliceous mullite；For using lateritic gold ore tailings as raw material, it is necessary to optimization of C/C composites, make to be formed in ceramic product
There is provided the new mineral in intensity source)；On the other hand, the method for cooking in the present invention can effectively reduce the adding proportion of coal dust, coal
The adding proportion of powder can be down to 2.9~6.5wt%, reduce the manufacturing cost of haydite；Also, both can be reasonable after addition iron tailings
Composition is allocated, firing temperature can be reduced again, further reduce production cost；The haydite sample prepared using the present invention is had concurrently by force
Spend height, good endurance, the advantages that proportion is small, water absorption rate is low, insulation.
To achieve the above object, according to one aspect of the present invention, there is provided a kind of fired with lateritic gold ore tailings is made pottery
The method of grain, it is characterised in that comprise the following steps：
(1) by lateritic gold ore tailings, iron tailings and coal dust in mass ratio 1.000:0.250~0.500:0.045~
0.085 proportioning, it is well mixed to obtain solid mixture；
(2) added in the solid mixture obtained to the step (1) and account for the solid mixture mass percent
15%~30% water, is then mixed evenly, that is, obtains solidliquid mixture；
(3) haydite base is made in the solidliquid mixture that the step (2) obtains, is then dried the haydite base
The haydite base that dry-cure is dried；
(4) the haydite base for the drying for obtaining the step (3) calcines 5~20 at a temperature of 1050~1350 DEG C
Minute, obtain haydite after cooling.
It is main to include accounting for this in the solid mixture that the step (1) obtains as present invention further optimization
The specific composition of the overall following mass percent of solid mixture：
SiO2：53.3~58.4%, Al2O3：14.7~15.2%, Fe2O3：10.1%~13.1%, CaO：1.2%~
2.0%.
As present invention further optimization, in the step (3), the haydite base is spherical.
As present invention further optimization, in the step (3), the drying and processing is the temperature at 100~105 DEG C
Lower drying and processing 2~24 hours.
As present invention further optimization, in the step (1), the lateritic gold ore tailings are by sieving pre- place
Reason, retain what particle of the particle diameter no more than 0.125mm obtained.
As present invention further optimization, in the step (1), Fe in the iron tailings2O3Weight/mass percentage composition be
More than 25%；Preferably, the iron tailings is iron ore dressing remnants iron tailings, or the iron tail of pyrite Sulphuric acid discharge
Ore deposit waste residue.
It is another aspect of this invention to provide that the invention provides utilize the above-mentioned side with lateritic gold ore tailings baking ceramsite
The haydite that method is prepared.
By the contemplated above technical scheme of the present invention, compared with prior art, due to using lateritic gold ore tailings
For primary raw material, conventional heavy oil is substituted as pore creating material fuel using coal dust, produces haydite inexpensive, of good performance.
Lateritic gold ore tailings mainly provide Si elements, Al elements；Iron tailings is mainly used to provide Fe, Al element, and allocates each inorganic
The ratio of composition, reduce haydite firing temperature；Coal dust plays internal pore creating material effect.The invention has the advantages that：
(1) in solid gold concentrator tailings volume at least 63wt% or so (reaching as high as 75wt%), therefore utilize well
Lateritic gold ore tailings, solve the problems, such as Making Use of Tailings utilization；
(2) 2.9~6.5wt% coal dust is only mixed with, is greatly enhanced the utilization rate to gold concentrator tailings and iron tailings,
Maximum twice laid is also accomplished while reducing cost of material；When the matter of gold concentrator tailings, iron tailings and coal dust three
Amount is than being 1.000:0.250:When 0.085, the mixed ratio of coal dust is 6.5wt%；As gold concentrator tailings, iron tailings and coal dust three
Mass ratio be 1.000:0.500:When 0.045, the mixed ratio of coal dust is 2.9wt%；
(3) this pore creating material cheap and easy to get of coal dust is used in the formula.With stink will not be discharged in this method production process
Waste gas, meet it is environmentally friendly into production principle；
In the solid mixture that lateritic gold ore tailings of the present invention, iron tailings and coal dust three are mixed to get, except tool
There is the SiO for accounting for extra fine quality percentage2、Al2O3、Fe2O3, outside the key component such as CaO, in addition to C (carbon), S (sulphur) easily burn and lost
Other oxide components such as composition, Mg, K, Na.
(4) will not relate to add water, multiple preheating, temperature control to cool down with acid soak, by several times using the method production haydite
Deng the operating process of complexity, exploitativeness is strong in use；
(5) make in this way that need to only be fired at 1050~1350 DEG C 5~20 minutes (especially can be for baking ceramsite
Calcined 5~10 minutes at a temperature of 1100~1200 DEG C), the haydite production time is short, efficiency high, cost are low；
(6) use the light ceramic to rely on the characteristics of its density is small, intensity is big as concrete light aggregate, solve
The heavy problem of conventional concrete using traditional stone as aggregate, can be widely applied to structural concrete and structure coagulation
Native product；The preferably spherical shape of the haydite (or almost spherical, naturally it is also possible to it is other non-spherical shape), concrete shape ginseng
The shape that number also refers to other types haydite in the prior art is configured；
(7) this product is formed by firing, therefore has preferably cylindrical compress strength, coefficient of softing, and the bulk density of product reaches
Standard, and have relatively low water absorption rate.Haydite product, which is prepared, can be used as building porcelain granule, that is, builds lightweight aggregate, can substitute day
The light ceramic that right shale raw material is fired, and substitute natural expanded perlite.
(8) lateritic gold ore tailings SiO2Content it is relatively low, if the raw material for not utilizing the haydite in the present invention to optimize is matched somebody with somebody
Than, and directly using the raw material proportioning for producing haydite in documents using rock type gold mine tailing as raw material, then haydite can not be fired
Shaping.The haydite burnt out with inventive formulation passes through X-ray diffraction ensaying, and its result shows：Hercynite is
The main mineral that intensity source is provided, and the formula in documents using rock type gold mine tailing as raw material produces haydite (for example, not
Mix iron tailings), the primary intensity of ceramic product is from mineral such as mullite and anorthites.
Brief description of the drawings
Fig. 1 is the process flow diagram of preparation method of the present invention；
Fig. 2 is haydite pictorial diagram produced by the present invention；
Fig. 3 is the XRD spectrum of the obtained haydite of the present invention.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.As long as in addition, technical characteristic involved in each embodiment of invention described below
Conflict can is not formed each other to be mutually combined.
Lateritic gold ore tailings in the present invention are derived from the discharge of Hubei Province Jiayu County She Wu Gold Mines Co., Ltd
Gold concentrator tailings.Lateritic gold ore tailings raw material, screening pretreatment can be first passed through in advance, separate the country rock that such as particle diameter is more than 6mm
(115 eye mesh screens are corresponded to bulk particle, the particles that 0.125mm is no more than using particle diameter such as horsestones；More preferably particle diameter is no more than
0.075mm, corresponding 200 eye mesh screens), produced for haydite, to separate the particle of the bulks such as country rock and horsestone.
It is specific embodiment below：
Embodiment 1
Quality proportioning：
Lateritic gold ore tailings:Iron tailings:Coal dust=1.000:0.500:0.0750；Lateritic gold ore tailings, iron tailings,
Coal dust is solid.Corresponding solid mixture includes main component, SiO2：53.6%, Al2O3：14.8%, Fe2O3：
12.9%, CaO：2.0%.
Water：Gu=3:10.Gu the gross mass of i.e. corresponding lateritic gold ore tailings, iron tailings, coal dust these three solid materials.
Manufacturing process flow comprises the following steps：
(1) golden mine tailing, iron tailings, coal dust are crossed to the sieve in 0.075mm apertures；
(2) lateritic gold ore tailings, iron tailings, coal dust are well mixed in above-mentioned ratio；
(3) it is the water of solid masses sum 0.3 toward addition quality in the mixture of acquisition in step (2), and is sufficiently stirred,
It is well mixed；
(4) solidliquid mixture obtained in step (3) is made a diameter of 20mm ball, is put into 100 by pellet forming process
Dried 2 hours in DEG C baking oven；
(5) acquisition bead in step (4) is put into 1150 DEG C of Muffle furnaces and fired 5 minutes, then allow it to be cooled down in stove,
Obtain product.
The haydite water absorption rate that above-described embodiment is fired is between 5.4%~6.8%, and bulk density is in 728~806kg/
m3。
Embodiment 2
Weight proportion：
Lateritic gold ore tailings:Iron tailings:Coal dust=1.000:0.500：0.045；Lateritic gold ore tailings, iron tailings,
Coal dust is solid.Corresponding solid mixture includes main component, SiO2：54.7%, Al2O3：15.1%, Fe2O3：
13.1%, CaO：2.0%.
Water：Gu=3:10.
Manufacturing process flow comprises the following steps：
(1) golden mine tailing, iron tailings, coal dust are crossed to the sieve in 0.075mm apertures；
(2) lateritic gold ore tailings, iron tailings, coal dust are well mixed in above-mentioned ratio；
(3) it is the water of solid masses sum 0.3 toward addition quality in the mixture of acquisition in step (2), and stirs；
(4) solidliquid mixture that will be obtained in step (3), by pellet forming process, a diameter of 20mm ball is made, is put into
Dried 2 hours in 100 DEG C of baking ovens；
(5) acquisition bead in step (4) is put into 1150 DEG C of Muffle furnaces and fired 5 minutes, then allow it to be cooled down in stove,
Obtain product.
The haydite water absorption rate that above-described embodiment is fired is between 5.4%~6.8%, and bulk density is in 728~806kg/
m3。
Embodiment 3
Weight proportion：
Lateritic gold ore tailings:Iron tailings:Coal dust=1.000:0.500:0.085；Lateritic gold ore tailings, iron tailings,
Coal dust is solid.Corresponding solid mixture includes main component, SiO2：53.3%, Al2O3：14.7%, Fe2O3：
12.8%, CaO：2.0%.
Water：Gu=3:10.
Manufacturing process flow comprises the following steps：
(1) golden mine tailing, iron tailings, coal dust are crossed to the sieve in 0.075mm apertures；
(2) lateritic gold ore tailings, iron tailings, coal dust are well mixed in above-mentioned ratio；
(3) it is the water of solid masses sum 0.3 toward addition quality in the mixture of acquisition in step (2), and stirs；
(4) solidliquid mixture that will be obtained in step (3), by pellet forming process, a diameter of 20mm ball is made, is put into
Dried 2 hours in 100 DEG C of baking ovens；
(5) acquisition bead in step (4) is put into 1150 DEG C of Muffle furnaces and fired 5 minutes, then allow it to be cooled down in stove,
Obtain product.
Embodiment 4
Weight proportion：
Lateritic gold ore tailings:Iron tailings:Coal dust=1.000:0.250:0.045；Lateritic gold ore tailings, iron tailings,
Coal dust is solid.Corresponding solid mixture includes main component, SiO2：58.4%, Al2O3：15.2%, Fe2O3：
10.4%, CaO：1.3%.
Water：Gu=3:10.
Manufacturing process flow comprises the following steps：
(1) golden mine tailing, iron tailings, coal dust are crossed to the sieve in 0.075mm apertures；
(2) lateritic gold ore tailings, iron tailings, coal dust are well mixed in above-mentioned ratio；
(3) it is the water of solid masses sum 0.3 toward addition quality in the mixture of acquisition in step (2), and stirs；
(4) solidliquid mixture that will be obtained in step (3), by pellet forming process, a diameter of 20mm ball is made, is put into
Dried 2 hours in 100 DEG C of baking ovens；
(5) acquisition bead in step (4) is put into 1150 DEG C of Muffle furnaces and fired 5 minutes, then allow it to be cooled down in stove,
Obtain product.
Embodiment 5
Weight proportion：
Lateritic gold ore tailings:Iron tailings:Coal dust=1.000:0.250:0.085；Lateritic gold ore tailings, iron tailings,
Coal dust is solid.Corresponding solid mixture includes main component, SiO2：56.7%, Al2O3：14.7%, Fe2O3：
10.1%, CaO：1.2%.
Water：Gu=3:10.
Manufacturing process flow comprises the following steps：
(1) golden mine tailing, iron tailings, coal dust are crossed to the sieve in 0.075mm apertures；
(2) lateritic gold ore tailings, iron tailings, coal dust are well mixed in above-mentioned ratio；
(3) it is the water of solid masses sum 0.3 toward addition quality in the mixture of acquisition in step (2), and stirs；
(4) solidliquid mixture that will be obtained in step (3), by pellet forming process, a diameter of 20mm ball is made, is put into
Dried 2 hours in 100 DEG C of baking ovens；
(5) acquisition bead in step (4) is put into 1150 DEG C of Muffle furnaces and fired 5 minutes, then allow it to be cooled down in stove,
Obtain product.
Embodiment 6
Quality proportioning：
Lateritic gold ore tailings:Iron tailings:Coal dust=1.000:0.500:0.0750；Lateritic gold ore tailings, iron tailings,
Coal dust is solid.Corresponding solid mixture includes main component, SiO2：53.6%, Al2O3：14.8%, Fe2O3：
12.9%, CaO：2.0%.
Water：Gu=1.5:10.Gu total matter of i.e. corresponding lateritic gold ore tailings, iron tailings, coal dust these three solid materials
Amount.
Manufacturing process flow comprises the following steps：
(1) golden mine tailing, iron tailings, coal dust are crossed to the sieve in 0.075mm apertures；
(2) lateritic gold ore tailings, iron tailings, coal dust are well mixed in above-mentioned ratio；
(3) it is the water of solid masses sum 0.15 toward addition quality in the mixture of acquisition in step (2), and fully stirs
Mix, be well mixed；
(4) solidliquid mixture obtained in step (3) is made a diameter of 20mm ball, is put into 100 by pellet forming process
Dried 2 hours in DEG C baking oven；
(5) acquisition bead in step (4) is put into 1050 DEG C of Muffle furnaces and fired 20 minutes, then allow it cold in stove
But, that is, product is obtained.
Embodiment 7
Quality proportioning：
Lateritic gold ore tailings:Iron tailings:Coal dust=1.000:0.500:0.0750；Lateritic gold ore tailings, iron tailings,
Coal dust is solid.Corresponding solid mixture includes main component, SiO2：53.6%, Al2O3：14.8%, Fe2O3：
12.9%, CaO：2.0%.
Water：Gu=3:10.Gu the gross mass of i.e. corresponding lateritic gold ore tailings, iron tailings, coal dust these three solid materials.
Manufacturing process flow comprises the following steps：
(1) golden mine tailing, iron tailings, coal dust are crossed to the sieve in 0.125mm apertures；
(2) lateritic gold ore tailings, iron tailings, coal dust are well mixed in above-mentioned ratio；
(3) it is the water of solid masses sum 0.3 toward addition quality in the mixture of acquisition in step (2), and is sufficiently stirred,
It is well mixed；
(4) solidliquid mixture obtained in step (3) is made a diameter of 20mm ball, is put into 105 by pellet forming process
Dried 24 hours in DEG C baking oven；
(5) acquisition bead in step (4) is put into 1350 DEG C of Muffle furnaces and fired 5 minutes, then allow it to be cooled down in stove,
Obtain product.
Comparative example 1
According to Chinese patent literature CN102503366A record：
Weight proportion:Gold tailings powder 90%, coal dust 10%；That is, golden mine tailing：Coal dust=1.000:0.111.
Manufacturing process flow comprises the following steps：
1. gold tailings powder is first dried, sieved using 0.30mm square hole screen；
2. below 0.3mm gold tailings powder, coal dust measures respectively after sieving is handled；
3. measured two kinds of materials are launched into mixer, first dry stir about 2 minutes, add 1/2 water afterwards, rewetting is stirred
Mix about 2 minutes；
4. the gold tailings powder mixed powder after stirring is sent into pan-pelletizer, then add 1/2 water, rotate balling-up；
It is calcined 5. gold tailings ash aggregates raw material ball is inserted in static continous way ceramisite sintering kiln, sintering temperature 1220~
1350 DEG C, sintering time 2.0~2.5 hours, gold tailings ash aggregates raw material ball in sintering oven, successively by preheating, sintering,
Three operation stages are cooled down, less than 400 DEG C are cooled in kiln
6. kiln discharge, natural cooling；
7. broken, screening, is divided into gold tailings ash aggregates finished product and gold tailings powder pottery sand finished product.
Comparative example 2
According to Chinese patent literature CN103288421A record：
Parts by weight of raw materials array into：Yellow river silt sand：60 parts, golden mine tailing：25 parts, coal dust：5 parts, water：33 parts.That is, solid
Quality of material proportioning is Yellow river silt sand：Golden mine tailing：Coal dust=2.400:1.000:0.200.
Manufacturing process flow comprises the following steps：
(1) Yellow river silt sand and golden mine tailing are dried to constant weight；
(2) Yellow river silt sand is sieved with 200 mesh standard sieves, the golden mine tailing after drying is milled into particle diameter is less than
0.08mm；
(3) the Yellow river silt sand under being sieved after sieving, golden mine tailing and coal dust are weighed respectively；
(4) load weighted three kinds of raw materials are placed in mixer and stirred；
(5) water is weighed, then adds in the raw material to have stirred, continues to stir；
(6) raw material is fabricated to diameter 10mm raw material ball；
(7) raw material ball manufactured is put into baking oven into 100 DEG C to dry about 5 hours；
(8) raw material ball after drying is placed in sintering furnace, three experience preheating, sintering, cooling processes, preheating temperature is
400~600 DEG C, 20~30 minutes preheating time；Sintering temperature control is at 1100~1250 DEG C, sintering time 20~30 minutes；
Chilling temperature control is 400~700 DEG C (furnace temperature) in stove；
(9) raw material ball is come out of the stove after being cooled to 400 DEG C, in atmosphere natural cooling；Obtain slug type haydite.
Lateritic Gold Deposit refers to related art using wet underwater welding gold, its concrete technology, such as [1] Wang Yuzhong, appoints
Spring jade Lateritic Gold Deposit choosing technical study processed, 1993, No.2.39-44 etc..
The present invention is solid waste --- the Jiayu She Wushan discharged using the Lateritic Gold Deposit mineral processing production of Fia
Lateritic gold ore tailings are fired into light ceramic as primary raw material, addition iron tailings, coal dust, are the useless of lateritic gold ore tailings
Abandon resource reutilization and provide another beneficial way.
The method for preparing light ceramic using lateritic gold ore tailings in the present invention, drying therein and mode of heating, no
It is confined to the type of furnace that research and development use；For example, rotary furnace employed in industrial production, as long as described thermal regulation can be reached,
It can be used.The shape of haydite in the present invention can also use other arbitrary shapes as needed in addition to spherical, certainly,
The shape of haydite base is also required to accordingly adjust.
As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, not to
The limitation present invention, all any modification, equivalent and improvement made within the spirit and principles of the invention etc., all should be included
Within protection scope of the present invention.
Claims (8)
- A kind of 1. method with lateritic gold ore tailings baking ceramsite, it is characterised in that comprise the following steps：(1) by lateritic gold ore tailings, iron tailings and coal dust in mass ratio 1.000:0.250~0.500:0.045~0.085 Proportioning, it is well mixed to obtain solid mixture；(2) in the solid mixture obtained to the step (1) add account for the solid mixture mass percent 15%~ 30% water, is then mixed evenly, that is, obtains solidliquid mixture；(3) haydite base is made in the solidliquid mixture that the step (2) obtains, then carries out the haydite base at drying Manage the haydite base dried；(4) the haydite base for the drying for obtaining the step (3) calcines 5~20 points at a temperature of 1050~1350 DEG C Clock, haydite is obtained after cooling.
- 2. the method for lateritic gold ore tailings baking ceramsite is used as claimed in claim 1, it is characterised in that the step (1) To the solid mixture in, the main specific composition for including accounting for the overall following mass percent of the solid mixture：SiO2：53.3~58.4%, Al2O3：14.7~15.2%, Fe2O3：10.1%~13.1%, CaO：1.2%~2.0%.
- 3. the method for lateritic gold ore tailings baking ceramsite is used as claimed in claim 1, it is characterised in that in the step (3), The haydite base is spherical.
- 4. the method for lateritic gold ore tailings baking ceramsite is used as claimed in claim 1, it is characterised in that in the step (3), The drying and processing is drying and processing 2~24 hours at a temperature of 100~105 DEG C.
- 5. the method for lateritic gold ore tailings baking ceramsite is used as claimed in claim 1, it is characterised in that in the step (1), The lateritic gold ore tailings are pre-processed by screening, retain what particle of the particle diameter no more than 0.125mm obtained.
- 6. the method for lateritic gold ore tailings baking ceramsite is used as claimed in claim 1, it is characterised in that in the step (1), Fe in the iron tailings2O3Weight/mass percentage composition be more than 25%.
- 7. the method for lateritic gold ore tailings baking ceramsite is used as claimed in claim 6, it is characterised in that the iron tailings is iron Ore beneficiation remnants iron tailings, or the iron tailings waste residue of pyrite Sulphuric acid discharge.
- 8. using being prepared as described in claim 1-7 any one with the method for lateritic gold ore tailings baking ceramsite Haydite.
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| CN108516857A (en) * | 2018-06-24 | 2018-09-11 | 大连地拓环境科技有限公司 | A kind of cyanidation tailings high-strength ceramic granule and preparation method thereof |
| CN109516772B (en) * | 2018-12-20 | 2019-12-31 | 华东交通大学 | Light high-strength waste glass ceramsite and preparation method thereof |
| CN110105081B (en) * | 2019-06-05 | 2022-05-17 | 河北睿索固废工程技术研究院有限公司 | High-strength light ceramsite taking gold tailings and vanadium-titanium-iron tailings as main raw materials |
| CN114751766A (en) * | 2021-11-24 | 2022-07-15 | 北京金隅红树林环保技术有限责任公司 | Light ceramsite fired by solid waste and method thereof |
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| CN101769035A (en) * | 2009-12-31 | 2010-07-07 | 华中科技大学 | Autoclaved lime-sand brick prepared with lateritic gold ore tailings and manufacturing method thereof |
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| CN105801162A (en) * | 2016-03-18 | 2016-07-27 | 烟台智本知识产权运营管理有限公司 | Preparation method of pyrite tailing ceramsite proppant |
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| CN101769035A (en) * | 2009-12-31 | 2010-07-07 | 华中科技大学 | Autoclaved lime-sand brick prepared with lateritic gold ore tailings and manufacturing method thereof |
| CN102503366A (en) * | 2011-10-08 | 2012-06-20 | 金立虎 | Method for manufacturing gold tailings ash aggregates |
| CN103288421A (en) * | 2013-06-03 | 2013-09-11 | 济南大学 | Sintered ceramic particle and preparation method thereof |
| CN105801162A (en) * | 2016-03-18 | 2016-07-27 | 烟台智本知识产权运营管理有限公司 | Preparation method of pyrite tailing ceramsite proppant |
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