CN106045359B - One kind stripping rock mine tailing dry method Desliming method - Google Patents
One kind stripping rock mine tailing dry method Desliming method Download PDFInfo
- Publication number
- CN106045359B CN106045359B CN201610377569.9A CN201610377569A CN106045359B CN 106045359 B CN106045359 B CN 106045359B CN 201610377569 A CN201610377569 A CN 201610377569A CN 106045359 B CN106045359 B CN 106045359B
- Authority
- CN
- China
- Prior art keywords
- mine tailing
- desliming
- mixture
- soil
- gross mass
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/02—Treatment
- C04B20/026—Comminuting, e.g. by grinding or breaking; Defibrillating fibres other than asbestos
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/12—Waste materials; Refuse from quarries, mining or the like
-
- 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
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/02—Treatment
- C04B20/023—Chemical treatment
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Abstract
The present invention relates to solid waste resource recovery to utilize field, discloses a kind of stripping rock mine tailing dry method Desliming method, and to solve in the prior art during to stripping rock mine tailing desliming, either water consumption is higher, either cost is higher or the technical problem that causes the time to waste.This method includes：The soil gross mass in mine tailing region is excavated in estimation；Desliming agent is added to mine tailing region is excavated；The mine tailing of excavation is mixed with desliming agent and makes heap；The water of predetermined amount is sprayed to the mixture for making heap, to be soaked to mixture, predetermined amount is the 10%~15% of the soil gross mass in excavation mine tailing region；The mixture for spraying water is placed 2~6 hours, so that desliming agent is reacted with the soil particle in mine tailing；The mixture placed loading disintegrating machine is crushed；Mixture after will be broken is sieved, and diameter is collected no more than the part of preset diameters as tail mud during sieving.Having reached can reduce to shelling water consumption, cost and time-consuming technique effect during rock mine tailing desliming.
Description
Technical field
The present invention relates to solid waste resource recovery to utilize field, more particularly to a kind of stripping rock mine tailing dry method Desliming method.
Background technology
A large amount of rubbles are needed to use in concrete construction project as coarse aggregate, and have strict want to the clay content of rubble
Ask.Clay content has a significant impact to concrete structural strength and construction quality.The rubble clay content used in concrete works needs
Meet and meet the requirement of the relevant criterions such as GB/T14685-2011, JGJ52-2006.Needed for clay content rubble resource not up to standard
It can be used after being eluted with water and drying.Therefore, the rubble price that the clean rubble specific adhesion of in the market has soil is higher by a lot.
It is caused a kind of solid waste during opencast mining to shell rock mine tailing.Before opencast mining ore,
That layer of rock (the less lean ore of mineral content) that to be covered on ore and the soil of earth's surface is needed to peel off, this process is referred to as
Shell rock.The rock and the mixture of soil that large-scale mine strips down are accumulated as mine tailing, are not used effectively, month after month throughout the year
Accumulation after form tens meters high of stripping rock mine tailing mountain, can be as important building stones secondary resource.Existing stripping rock mine tailing is opened
The stripping rock mine tailing of excavation is typically directly crushed and sieved by excavating technology.The adjoint mechanical external force in broken, screening process
Impact under, most rock can be with soil natural separation and sub-electing rubble product and tail mud.But there is part broken all the time
Stone surface adhesion has a small amount of soil, and separation is not thorough, influences rubble product entirety clay content.Clay content not up to standard is to restrict rubble
An important factor for product price.
In the prior art, the clay content of rubble can be reduced by following several ways：
The first, the mode of rubble is rinsed by using a large amount of water reduces its clay content, but meeting is produced in flushing process
A large amount of waste water are produced, outer row be present, meanwhile, lacking the production zone at water source, washing is also difficult to.
Second, the clay content of rubble is reduced based on principles such as flocculation, flotation, but these methods are applied to processing and added
The resources such as the higher metalliferous mineral (hundreds of yuan per ton) of value, and it is relatively low (per ton to exploit rubble added value itself from stripping rock mine tailing
Dozens of yuan), it is bad using these method cost/benefit ratios.
The third, crushing and screening is carried out by adding a certain amount of desliming agent into stripping rock mine tailing raw material and being well mixed again
Can be without obtaining high-quality crushed stone material under conditions of being rinsed with water, its desliming agent prescription is in quick lime or digestion lime
One or two.But the program is there is also activity time length, yield difficult the problems such as improving.
The content of the invention
In view of the above problems, it is proposed that the present invention so as to provide one kind overcome above mentioned problem or at least in part solve on
State the stripping rock mine tailing dry method Desliming method of problem.
In a first aspect, the embodiment of the present invention provides a kind of stripping rock mine tailing dry method Desliming method, including：
Mine tailing area is excavated according to caused rubble total amount and tail mud total amount, estimation in stripping rock mine tailing history exploitation process
The soil gross mass in domain；
Desliming agent is added to the excavation mine tailing region, the gross mass of the desliming agent is the mud for excavating mine tailing region
The 5%~20% of native gross mass, the desliming agent Ingredients Weight content characteristics are：25%≤Ca (OH)2≤ 40%, 25%≤
CaSO3·0.5H2O≤40%, 10%≤CaSO4·2H2O≤20%, 5%≤CaCO3≤ 15%, 2%≤CaCl2≤ 5%；
The mine tailing of excavation is mixed with the desliming agent and makes heap；
The water of predetermined amount is sprayed to the mixture for making heap, to be soaked to the mixture, the predetermined amount is described
Excavate the 10%~15% of the soil gross mass in mine tailing region；
The mixture for spraying water is placed 2~6 hours, so that the desliming agent and the soil in the mine tailing
Grain reaction；
The mixture placed loading disintegrating machine is crushed；
The mixture after will be broken is sieved, and diameter is received no more than the part of preset diameters as tail mud during sieving
Collection.
Optionally, methods described also includes：Diameter is more than the part of the preset diameters as construction use during sieving
Crushed stone material.
Optionally, the preset diameters are 5mm.
Optionally, the amount containing soil≤25.0% in the stripping rock mine tailing.
Optionally, the grain size characteristic of the desliming agent is quality >=80.0% of the following particle of 200 mesh.
Optionally, the gross mass of the desliming agent for the soil gross mass in the excavation mine tailing region 10.0%~
15.0%.
Optionally, it is described to place the mixture for spraying water 2~6 hours, including：The described mixed of water will be sprayed
Compound is placed 3~4 hours.
Optionally, it is described to place the mixture for spraying water 2~6 hours, including；
The mixture for spraying water is placed 2~6 hours at 10 DEG C~30 DEG C.
The present invention has the beneficial effect that：
Due in embodiments of the present invention, being reduced by way of adding desliming agent to the excavation mine tailing region of stripping rock mine tailing
The cement content in rock mine tailing is shelled, wherein, the desliming agent Ingredients Weight content characteristics are：25%≤Ca (OH)2≤ 40%, 25%
≤CaSO3·0.5H2O≤40%, 10%≤CaSO42H2O≤20%, 5%≤CaCO3≤ 15%, 2%≤CaCl2≤ 5%；
And after the mine tailing of excavation is mixed with desliming agent and makes heap, the water of predetermined amount is sprayed to the mixture for making heap, with to institute
State mixture to be soaked, the predetermined amount is the 10%~15% of the soil gross mass in the excavation mine tailing region；Then will
The mixture for spraying water is placed 2~6 hours, so that the desliming agent is reacted with the soil particle in the mine tailing, phase
For desliming mode of the prior art, at least there is following beneficial effect in it：
(1) when reducing the cement content in rubble by desliming agent in the prior art, desliming agent is often quick lime or digestion
One or both of lime, Binder Phase caused by its chemical reaction is silicate or aluminate class material.And based on the present invention
The desliming agent of the addition, Binder Phase caused by chemical reaction is aluminium sulfate class material in the present invention, under equal conditions, sulphur aluminium
The formation speed of hydrochlorate is more many soon than silicate aluminate class material class material speed, so as to cause the present invention being capable of first mate's shortening
Standing operation takes.Experimental study shows that time of repose can foreshorten to 3~4 hours under normal temperature of the present invention, compare prior art
(6~8 hours) reduce half, and production efficiency and yield can double.
(2) a small amount of water can play a part of reaction medium during desliming process, so as to effectively accelerate reaction speed
Degree, and prior art only relies only on the moisture contained in itself in soil as reaction media, if soil water content itself is less, takes off
Mud is ineffective.Compared with prior art, invention increases watering to soak process, ensures that mixing heap possesses certain water content
And reaction efficiency, the effective guarantee shortening of time of repose.
(3) prior art desliming agent prescription be lime material (such as：One kind or two in quick lime or digestion lime
Kind), and lime granularity is had higher requirements, usual lime is produced by limestone calcination, is calcined the lime produced and is generally block
Shape, particle is very big, and, it is necessary to can just be worked into 200 mesh by ball milling, price per ton at least also wants 100 to 200 yuan, and cost is high, and
Desliming agent involved in the present invention is a kind of metallurgical solid waste, can not be digested in metallurgy industry, is generally only filled at stacking
Reason, outer price lattice are extremely low, only 5~10 yuan.In addition, the granularity of metallurgical solid waste resource in itself meets dry method desliming process need
Ask, the ball milling processing of consuming cost can be removed from, therefore, desliming agent cost of the present invention be far below the lime that uses in the prior art or
Digest lime.
(4) desliming agent prescription Chemical Composition Characteristics involved in the present invention are had in itself by the metallurgical solid waste, without extra
Add other materials.
(5) technical scheme involved in the present invention is suitable with prior art in terms of desliming effect, and rubble product clay content expires
II classes product requirements above in sufficient GB/t 14685-2011, but technique total time-consuming is lower, and desliming cost is lower.
Brief description of the drawings
By reading the detailed description of hereafter preferred embodiment, it is various other the advantages of and benefit it is common for this area
Technical staff will be clear understanding.Accompanying drawing is only used for showing the purpose of preferred embodiment, and is not considered as to the present invention
Limitation.And in whole accompanying drawing, identical part is denoted by the same reference numerals.In the accompanying drawings：
Fig. 1 is the flow chart that rock mine tailing dry method Desliming method is shelled in the embodiment of the present invention.
Embodiment
A kind of stripping rock mine tailing dry method Desliming method of present invention offer, to solve in the prior art to being wanted during stripping rock mine tailing desliming
Water consumption is higher, either cost is higher or causes the technical problem of time waste.
Technical scheme in the embodiment of the present application is the above-mentioned technical problem of solution, and general thought is as follows：
Mine tailing area is excavated according to caused rubble total amount and tail mud total amount, estimation in stripping rock mine tailing history exploitation process
The soil gross mass in domain；Desliming agent is added to the excavation mine tailing region, the gross mass of the desliming agent is the excavation mine tailing
The 5%~20% of the soil gross mass in region, the desliming agent Ingredients Weight content characteristics are：25%≤Ca (OH)2≤ 40%,
25%≤CaSO3·0.5H2O≤40%, 10%≤CaSO4·2H2O≤20%, 5%≤CaCO3≤15%, 2%≤CaCl2≤
5%；The mine tailing of excavation is mixed with the desliming agent and makes heap；The water of predetermined amount is sprayed to the mixture for making heap, with to described
Mixture is soaked, and the predetermined amount is the 10%~15% of the soil gross mass in the excavation mine tailing region；It will spray
The mixture of water is placed 2~6 hours, so that the desliming agent is reacted with the soil particle in the mine tailing；It will place
The mixture load disintegrating machine crushed；The mixture after will be broken sieves, and diameter is not more than during sieving
Collected as tail mud the part of preset diameters.
Relative to desliming mode of the prior art, at least there is following beneficial effect in it：
(1) when reducing the cement content in rubble by desliming agent in the prior art, desliming agent is often quick lime or digestion
One or both of lime, Binder Phase caused by its chemical reaction is silicate or aluminate class material.And based on the present invention
The desliming agent of the addition, Binder Phase caused by chemical reaction is aluminium sulfate class material in the present invention, under equal conditions, sulphur aluminium
The formation speed of hydrochlorate is more many soon than silicate aluminate class material class material speed, so as to cause the present invention being capable of first mate's shortening
Standing operation takes.Experimental study shows that time of repose can foreshorten to 3~4 hours under normal temperature of the present invention, compare prior art
(6~8 hours) reduce half, and production efficiency and yield can double.
(2) a small amount of water can play a part of reaction medium during desliming process, so as to effectively accelerate reaction speed
Degree, and prior art only relies only on the moisture contained in itself in soil as reaction media, if soil water content itself is less, takes off
Mud is ineffective.Compared with prior art, invention increases watering to soak process, ensures that mixing heap possesses certain water content
And reaction efficiency, the effective guarantee shortening of time of repose.
(3) prior art desliming agent prescription be lime material (such as：One kind or two in quick lime or digestion lime
Kind), and lime granularity is had higher requirements, usual lime is produced by limestone calcination, is calcined the lime produced and is generally block
Shape, particle is very big, and, it is necessary to can just be worked into 200 mesh by ball milling, price per ton at least also wants 100 to 200 yuan, and cost is high, and
Desliming agent involved in the present invention is a kind of metallurgical solid waste, can not be digested in metallurgy industry, is generally only filled at stacking
Reason, outer price lattice are extremely low, only 5~10 yuan.In addition, the granularity of metallurgical solid waste resource in itself meets dry method desliming process need
Ask, the ball milling processing of consuming cost can be removed from, therefore, desliming agent cost of the present invention be far below the lime that uses in the prior art or
Digest lime.
(4) desliming agent prescription Chemical Composition Characteristics involved in the present invention are had in itself by the metallurgical solid waste, without extra
Add other materials.
(5) technical scheme involved in the present invention is suitable with prior art in terms of desliming effect, and rubble product clay content expires
II classes product requirements above in sufficient GB/t 14685-2011, but technique total time-consuming is lower, and desliming cost is lower.
In order to be better understood from above-mentioned technical proposal, below by accompanying drawing and specific embodiment to technical solution of the present invention
It is described in detail, it should be understood that the specific features in the embodiment of the present invention and embodiment are to the detailed of technical solution of the present invention
Thin explanation, rather than the restriction to technical solution of the present invention, in the case where not conflicting, the embodiment of the present invention and embodiment
In technical characteristic can be mutually combined.
The embodiment of the present invention provides a kind of stripping rock mine tailing dry method Desliming method, refer to Fig. 1, including：
Step S101：According to caused rubble total amount and tail mud total amount, estimation in stripping rock mine tailing history exploitation process
Excavate the soil gross mass in mine tailing region；
Step S102：Desliming agent is added to the excavation mine tailing region, the gross mass of the desliming agent is the excavation tail
The 5%~20% of the soil gross mass in mining area domain, the desliming agent Ingredients Weight content characteristics are：25%≤Ca (OH)2≤
40%, 25%≤CaSO3·0.5H2O≤40%, 10%≤CaSO4·2H2O≤20%, 5%≤CaCO3≤ 15%, 2%≤
CaCl2≤ 5%；
Step S103：The mine tailing of excavation is mixed with the desliming agent and makes heap；
Step S104：The water of predetermined amount is sprayed to the mixture for making heap, it is described default to be soaked to the mixture
Measure 10%~15% of the soil gross mass for the excavation mine tailing region；
Step S105：The mixture for spraying water is placed 2~6 hours, so that the desliming agent and the mine tailing
In soil particle reaction；
Step S106：The mixture placed loading disintegrating machine is crushed；
Step S107：The mixture after will be broken sieves, and diameter is not more than the part of preset diameters during sieving
Collected as tail mud.
In step S101, history exploitation process is, for example, to shell the last exploitation process of rock mine tailing, either
It is preceding several times (such as：2 times, 3 times etc.) exploitation process etc., wherein it is possible to pass through tail mud total amount/(rubble total amount+tail mud
Total amount) being measured containing soil in certain exploitation process is determined, can be exploited to the amount containing soil in process as originally last time
Amount containing soil used in secondary estimation, the preceding process of exploitation several times can also be measured average value containing soil, and then obtain this
Used amount containing soil in estimation process.
The density estimation that stripping rock mine tailing can be multiplied by by excavating the volume in mine tailing region excavates the gross mass in mine tailing region,
Then the soil gross mass for being multiplied by amount containing soil by excavating the gross mass in mine tailing region and being obtained with excavating mine tailing region.
As a kind of optional embodiment, the amount containing soil≤25.0% in the stripping rock mine tailing, namely the stripping rock mine tailing
In soil gross mass account for soil and rock gross mass≤25.0%.
In step S102, the desliming agent is often metallurgical solid waste.As long as the desliming agent is total under normal circumstances
Quality realizes the effect of desliming for 5%~20% can of the soil gross mass in the excavation mine tailing region, and the ratio is for example
For：6%th, 10%, 19% etc..And a kind of optional embodiment is used as, the gross mass of the desliming agent is the excavation mine tailing
The 10.0%~15.0% of the soil gross mass in region, such as：11%th, 12%, 13% etc., and then can realize preferably de-
The consumption of desliming agent is reduced while mud effect.In step S103, the mine tailing of excavation can be well mixed with desliming agent.
In step S104, a small amount of water plays a part of reaction medium during desliming process, can effectively accelerate to react
Speed.Prior art relies on the moisture contained in itself in soil as reaction media.If soil water content itself is less, desliming effect
Fruit is bad.Compared with prior art, invention increases watering to soak process, ensures that mixing heap possesses certain water content and anti-
Answer efficiency, the effective guarantee shortening of time of repose.Watering operation can be completed by sprinkling truck, simple and easy, suitable for a variety of
Occasion.
In step S105, mixture can be stood at normal temperatures, its temperature range is, for example,：It will spray described in water
Mixture is placed 2~6 hours at 10 DEG C~30 DEG C., can either a length of 3~4 hours during standing as a kind of optional embodiment
Ensure that desliming agent is fully reacted with the mud particles in stripping rock mine tailing in mixture, while and can enough reduces the time-consuming of desliming.
In step S107, the mixture of rubble and soil after can crushing enters vibrating screen by belt, then will
Diameter is collected no more than the part of preset diameters as tail mud, and wherein preset diameters are, for example,：5mm, it is of course also possible to be other
Value, such as：4mm, 4.5mm etc., the embodiment of the present invention are not restricted.
As a kind of optional embodiment, methods described also includes：Diameter is more than the preset diameters during sieving
Part is used as construction crushed stone material.Wherein it is possible to diameter is more than preset diameters multistage screening obtains according to demand for part
The construction crushed stone material of low clay content.It is situated between in order that those skilled in the art can further understand the embodiment of the present invention
The stripping rock mine tailing dry method Desliming method to continue, it is introduced the application in this way in specific implementation process below.
Embodiment 1：
(1) ratio of caused rubble gross mass and tail mud gross mass is about 10 in exploitation of stone early stage process：1, this
Secondary excavation mine tailing region exploitation soil and rock gross mass are about 500 tons, wherein soil gross mass is about 50 tons, are matched somebody with somebody by 10%
Than about 5 tons of the gross mass that need to add desliming agent；
(2) usage mining machine is well mixed rock mine tailing is shelled with desliming agent, and is further piled some mix and expected heap；
(3) a certain amount of water is uniformly sprayed to heap is mixed using sprinkling truck, watering gross mass is about 6 tons；
(4) the mixing heap after watering is stood 4 hours at normal temperatures, desliming agent is fully reacted；
(5) after time of repose abundance, stripping rock mine tailing is fitted into disintegrating machine and crushed；
(6) mixture of rubble and soil after crushing enters vibrating screen, diameter by belt<Make 5.0mm part
Collected for tail mud, diameter>Further multistage screening obtains the crushed stone material of each size according to demand for 5.0mm part.
Test, clay content are sampled to the clay content of this production rubble according to method described in GB/T14685-2011
For 0.65%, meet II class product requirements.
Embodiment 2：
(1) ratio of caused rubble gross mass and tail mud gross mass is about 5 in exploitation of stone early stage process：1, this
It is about 400 tons to excavate mine tailing region exploitation soil and rock gross mass, and wherein soil gross mass is about 80 tons, by 15% proportioning
About 12 tons of the gross mass of desliming agent need to be added；
(2) usage mining machine is well mixed rock mine tailing is shelled with desliming agent, and is further piled some mix and expected heap；
(3) a certain amount of water is uniformly sprayed to heap is mixed using sprinkling truck, watering gross mass is about 10 tons；
(4) the mixing heap after watering is stood 3 hours at normal temperatures, desliming agent is fully reacted；
(5) after time of repose abundance, stripping rock mine tailing is fitted into disintegrating machine and crushed；
(6) mixture of rubble and soil after crushing enters vibrating screen, diameter by belt<Make 5.0mm part
Collected for tail mud, diameter>Further multistage screening obtains the crushed stone material of each size according to demand for 5.0mm part.
Test, clay content are sampled to the clay content of this production rubble according to method described in GB/T14685-2011
For 0.58%, meet II class product requirements.
Embodiment 3：
(1) ratio of caused rubble gross mass and tail mud gross mass is about 7 in exploitation of stone early stage process：1, this
It is about 450 tons to excavate mine tailing region exploitation soil and rock gross mass, and wherein soil gross mass is about 65 tons, by 12% proportioning
About 8 tons of the gross mass of desliming agent need to be added；
(2) mine tailing is well mixed by usage mining machine with desliming agent, and is further piled some mix and expected heap；
(3) a certain amount of water is uniformly sprayed to heap is mixed using sprinkling truck, watering gross mass is about 8 tons；
(4) the mixing heap after watering is stood 4 hours at normal temperatures, desliming agent is fully reacted；
(5) after time of repose abundance, stripping rock mine tailing is fitted into disintegrating machine and crushed；
(6) mixture of rubble and soil after crushing enters vibrating screen, diameter by belt<Make 5.0mm part
Collected for tail mud, diameter>Further multistage screening obtains the crushed stone material of each size according to demand for 5.0mm part.
Test, clay content are sampled to the clay content of this production rubble according to method described in GB/T14685-2011
For 0.46%, meet I class product requirements.
The one or more embodiments of the present invention, at least have the advantages that：
Due in embodiments of the present invention, being reduced by way of adding desliming agent to the excavation mine tailing region of stripping rock mine tailing
The cement content in rock mine tailing is shelled, wherein, the desliming agent Ingredients Weight content characteristics are：25%≤Ca (OH)2≤ 40%, 25%
≤CaSO3·0.5H2O≤40%, 10%≤CaSO4·2H2O≤20%, 5%≤CaCO3≤ 15%, 2%≤CaCl2≤ 5%；
And after the mine tailing of excavation is mixed with desliming agent and makes heap, the water of predetermined amount is sprayed to the mixture for making heap, with to institute
State mixture to be soaked, the predetermined amount is the 10%~15% of the soil gross mass in the excavation mine tailing region；Then will
The mixture for spraying water is placed 2~6 hours, so that the desliming agent is reacted with the soil particle in the mine tailing, phase
For desliming mode of the prior art, at least there is following beneficial effect in it：
(1) when reducing the cement content in rubble by desliming agent in the prior art, desliming agent is often quick lime or digestion
One or both of lime, Binder Phase caused by its chemical reaction is silicate or aluminate class material.And based on the present invention
The desliming agent of the addition, Binder Phase caused by chemical reaction is aluminium sulfate class material in the present invention, under equal conditions, sulphur aluminium
The formation speed of hydrochlorate is more many soon than silicate aluminate class material class material speed, so as to cause the present invention being capable of first mate's shortening
Standing operation takes.Experimental study shows that time of repose can foreshorten to 3~4 hours under normal temperature of the present invention, compare prior art
(6~8 hours) reduce half, and production efficiency and yield can double.
(2) a small amount of water can play a part of reaction medium during desliming process, so as to effectively accelerate reaction speed
Degree, and prior art only relies only on the moisture contained in itself in soil as reaction media, if soil water content itself is less, takes off
Mud is ineffective.Compared with prior art, invention increases watering to soak process, ensures that mixing heap possesses certain water content
And reaction efficiency, the effective guarantee shortening of time of repose.
(3) prior art desliming agent prescription be lime material (such as：One kind or two in quick lime or digestion lime
Kind), and lime granularity is had higher requirements, usual lime is produced by limestone calcination, is calcined the lime produced and is generally block
Shape, particle is very big, and, it is necessary to can just be worked into 200 mesh by ball milling, price per ton at least also wants 100 to 200 yuan, and cost is high, and
Desliming agent involved in the present invention is a kind of metallurgical solid waste, can not be digested in metallurgy industry, is generally only filled at stacking
Reason, outer price lattice are extremely low, only 5~10 yuan.In addition, the granularity of metallurgical solid waste resource in itself meets dry method desliming process need
Ask, the ball milling processing of consuming cost can be removed from, therefore, desliming agent cost of the present invention be far below the lime that uses in the prior art or
Digest lime.
(4) desliming agent prescription Chemical Composition Characteristics involved in the present invention are had in itself by the metallurgical solid waste, without extra
Add other materials.
(5) technical scheme involved in the present invention is suitable with prior art in terms of desliming effect, and rubble product clay content expires
II classes product requirements above in sufficient GB/t 14685-2011, but technique total time-consuming is lower, and desliming cost is lower.
Although preferred embodiments of the present invention have been described, but those skilled in the art once know basic creation
Property concept, then can make other change and modification to these embodiments.So appended claims be intended to be construed to include it is excellent
Select embodiment and fall into having altered and changing for the scope of the invention.
Obviously, those skilled in the art can carry out the essence of various changes and modification without departing from the present invention to the present invention
God and scope.So, if these modifications and variations of the present invention belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising including these changes and modification.
Claims (8)
1. one kind stripping rock mine tailing dry method Desliming method, it is characterised in that including：
Mine tailing region is excavated according to caused rubble total amount and tail mud total amount, estimation in stripping rock mine tailing history exploitation process
Soil gross mass；
Desliming agent is added to the excavation mine tailing region, the gross mass of the desliming agent is total for the soil in the excavation mine tailing region
The 5%~20% of quality, the desliming agent Ingredients Weight content characteristics are：25%≤Ca (OH)2≤ 40%, 25%≤CaSO3·
0.5H2O≤40%, 10%≤CaSO4·2H2O≤20%, 5%≤CaCO3≤ 15%, 2%≤CaCl2≤ 5%；
The mine tailing of excavation is mixed with the desliming agent and makes heap；
The water of predetermined amount is sprayed to the mixture for making heap, to be soaked to the mixture, the predetermined amount is the excavation
The 10%~15% of the soil gross mass in mine tailing region；
The mixture for spraying water is placed 2~6 hours, so that the desliming agent and the soil particle in the mine tailing are anti-
Should；
The mixture placed loading disintegrating machine is crushed；
The mixture after will be broken is sieved, and diameter is collected no more than the part of preset diameters as tail mud during sieving.
2. the method as described in claim 1, it is characterised in that methods described also includes：Diameter is more than described during sieving
The part of preset diameters is as construction crushed stone material.
3. method as claimed in claim 2, it is characterised in that the preset diameters are 5mm.
4. the method as described in claim 1-3 is any, it is characterised in that the amount containing soil≤25.0% in the stripping rock mine tailing.
5. the method as described in claim 1-3 is any, it is characterised in that the grain size characteristic of the desliming agent is below 200 mesh
Quality >=80.0% of particle.
6. the method as described in claim 1-3 is any, it is characterised in that the gross mass of the desliming agent is the excavation mine tailing
The 10.0%~15.0% of the soil gross mass in region.
7. the method as described in claim 1-3 is any, it is characterised in that it is small that the mixture for spraying water is placed 3~4
When.
8. the method as described in claim 1-3 is any, it is characterised in that the mixture of water will be sprayed 10 DEG C~30
DEG C place 2~6 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610377569.9A CN106045359B (en) | 2016-05-31 | 2016-05-31 | One kind stripping rock mine tailing dry method Desliming method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610377569.9A CN106045359B (en) | 2016-05-31 | 2016-05-31 | One kind stripping rock mine tailing dry method Desliming method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106045359A CN106045359A (en) | 2016-10-26 |
| CN106045359B true CN106045359B (en) | 2018-01-16 |
Family
ID=57172551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610377569.9A Active CN106045359B (en) | 2016-05-31 | 2016-05-31 | One kind stripping rock mine tailing dry method Desliming method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106045359B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106746827B (en) * | 2016-11-18 | 2019-05-24 | 武汉钢铁有限公司 | A kind of method of modifying of dry method desliming tail mud and its application |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2010106743A (en) * | 2010-02-24 | 2011-08-27 | Государственное образовательное учреждение высшего профессионального образования "Санкт-Петербургский государственный горный инсти | METHOD FOR DISPOSAL OF DRILLING Sludge |
| CN102527690A (en) * | 2012-01-11 | 2012-07-04 | 昆明理工大学 | Curing and dry-piling method of iron tailings |
| CN103977883A (en) * | 2014-04-28 | 2014-08-13 | 武汉钢铁(集团)公司 | Dry pile method suitable for rainy humid area tailings |
| CN104860560A (en) * | 2015-05-12 | 2015-08-26 | 武汉钢铁(集团)公司 | Rock-peeling gangue dry-process desliming method |
-
2016
- 2016-05-31 CN CN201610377569.9A patent/CN106045359B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2010106743A (en) * | 2010-02-24 | 2011-08-27 | Государственное образовательное учреждение высшего профессионального образования "Санкт-Петербургский государственный горный инсти | METHOD FOR DISPOSAL OF DRILLING Sludge |
| CN102527690A (en) * | 2012-01-11 | 2012-07-04 | 昆明理工大学 | Curing and dry-piling method of iron tailings |
| CN103977883A (en) * | 2014-04-28 | 2014-08-13 | 武汉钢铁(集团)公司 | Dry pile method suitable for rainy humid area tailings |
| CN104860560A (en) * | 2015-05-12 | 2015-08-26 | 武汉钢铁(集团)公司 | Rock-peeling gangue dry-process desliming method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106045359A (en) | 2016-10-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106242509B (en) | A kind of clinker bricks in environmental protection and preparation method thereof | |
| CN108298898A (en) | A kind of method of metal tail slag production dry-mixed mortar | |
| CN1252781A (en) | High pulp density, fast setting and high early strength backfill method and material | |
| CN103304171A (en) | Preparation method of machine-made sand capable of replacing natural sand | |
| CN108480016A (en) | The efficient rubble sand production technology of factory's formula environment-protecting intelligent | |
| CN101638924B (en) | Limestone tailing-bricks and preparation method thereof | |
| CN110342891A (en) | A kind of spoil paste filling material and preparation method thereof for coal mining | |
| CN104386987B (en) | Composite grouting material of modified pitch emulsion and modified cement and preparation method thereof | |
| CN112456904A (en) | Tailing aggregate concrete and preparation method thereof | |
| CN114477918A (en) | Premixed construction waste regeneration flow state backfill material | |
| CN108930276A (en) | A method of suitable for carrying out dry heap to fine tailings by level land or massif | |
| CN106045359B (en) | One kind stripping rock mine tailing dry method Desliming method | |
| CN110482966A (en) | Compound cemented filling material and its preparation method and application | |
| CN104891855A (en) | A method of extracting rare earth sulfate from coal gangue and applying the rare earth sulfate as a concrete additive | |
| AU2021104088A4 (en) | Method for preparing porous lightweight fine aggregate and micropowder from manganese-silicon slag and applications thereof | |
| CN113735538B (en) | Solid cementing material and preparation method and application thereof | |
| CN114538868A (en) | Method for applying full lithium waste to goaf cemented filling | |
| CN102924053B (en) | Attapulgite shale ceramsite sintering porous building block | |
| CN110294626A (en) | Using waste materials such as red muds as ecological sandstone aggregate of raw material and preparation method thereof | |
| JP6174280B1 (en) | Fluid backfill material | |
| CN104860560B (en) | Stripping rock mine tailing dry method Desliming method | |
| CN115921092A (en) | Dry-wet combined sand making method for artificial sand and stone system | |
| CN101439951B (en) | Digging gangue concrete | |
| CN104084292A (en) | Method for manufacturing construction sand by virtue of copper ore dump leaching slag | |
| CN103212477B (en) | Method for removing sludge from limestone stones |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20170720 Address after: 430080 Qingshan District stock company of Hubei, Wuhan Province Applicant after: Wuhan iron and Steel Company Limited Address before: 430083 Qingshan District, Hubei, Wuhan factory before the door No. 2 Applicant before: WUHAN IRON AND STEEL CORPORATION |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |