CN103936345B - The method and system of a kind of tailing (back) fill slurry preparation - Google Patents
The method and system of a kind of tailing (back) fill slurry preparation Download PDFInfo
- Publication number
- CN103936345B CN103936345B CN201410075226.8A CN201410075226A CN103936345B CN 103936345 B CN103936345 B CN 103936345B CN 201410075226 A CN201410075226 A CN 201410075226A CN 103936345 B CN103936345 B CN 103936345B
- Authority
- CN
- China
- Prior art keywords
- cyclone
- agitator
- flow
- pipeline
- tailing
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
- Cyclones (AREA)
Abstract
This application discloses the method and system of a kind of tailing (back) fill slurry preparation, wherein, described method comprises: the mine tailing of mill tailings pumping plant is delivered to cyclone by Tailings transportation tube pump, is concentrated by cyclone to mine tailing; The cone angle of described cyclone is 15 °, and diameter is 350mm, and operating pressure is 120Kpa, and row's mouth ratio is more than or equal to 0.44 and is less than or equal to 0.56; The underflow obtained after concentrating through cyclone is delivered to the first agitator, the second agitator successively by pipeline; Or, be directly delivered to the second agitator; The material to be mixed for the preparation of slip is carried to described second agitator; Mine tailing in second agitator and described material to be mixed are carried out stirring and obtains slip; By described slip by Cemented filling to hopper, be fills up to down-hole.When adopting vertical sand warehouse to carry out Tailing thickening by present application addresses, the mine tailing effluent concentration of existence is high, Mine Tailings Utilization is low and the wasting of resources, problem that cost is high.
Description
Technical field
The application relates to tailings glass technical field, particularly relates to the method and system of a kind of tailing (back) fill slurry preparation.
Background technology
When underground mining is carried out to the low-grade mine being located in flat-bottomed land, because mining is all carry out in underground, therefore; in order to surface buildings and farmland safety, preserve the ecological environment, realize safety in production; earth's surface must be kept in recovery process to stablize, prevent from subsiding.
At present, most of mine all adopts this typical charge process of the method for mining by the way of filling in production operation process, to avoid the generation of surface subsidence situation.The specific implementation process of the method for mining by the way of filling is as follows:
First, the mine tailing in ore dressing plant is directly inputted into vertical sand warehouse through pump, gangue solids particle carries out sedimentation in vertical sand warehouse.After mine tailing sedimentation a period of time, start to carry out wind-force pulping in bottom, bottom starts ore drawing simultaneously, and the high-concentration ore slurry flowed out bottom vertical sand warehouse enters biaxial rneader, after stirring with material (e.g., cement), feeds and activates stirring at a high speed.Finally, the mine tailing processed is fills up to down-hole.
But there are the following problems for above-mentioned traditional typical charge process:
In recent years, along with constantly attenuating of ore disseminated grain size, the mine tailing grade that ore dressing plant produces is also more and more thinner, after mine tailing enters vertical sand warehouse by Cang Ding center, the spout hole distance of draw-point distance periphery is only 4 ~ 5m, can for the distance of the solid particles sediment in mine tailing can be supplied minimum, and the settling rate of fine grain particle is slower, particularly after slip arrives spillwag chute, flowing velocity increases greatly, major part tailings particles has little time sedimentation, namely discharge from spout hole, cause effluent concentration high, cause Mine Tailings Utilization low, and then cause mine tailing amount can not meet the requirement of Goaf Area, goaf charge less is caused to fill out.
Secondly, when vertical sand warehouse underflow density is higher, wind-force pulping difficulty, blanking is not smooth; And when vertical sand warehouse underflow density is lower, the water yield that leaches of Underground filler can be caused to increase, material (e.g., cement) outflows with water, and increases the consumption of material, causes the wasting of resources, improves cost of production; Further, reduce the intensity of obturation, cause potential safety hazard.
Again, adopt the investment of the Filling Station of vertical sand warehouse concentration and settlement technology building huge, in general, a year stowage capacity be 160,000 m
3filling system make an investment in about 1,000 ten thousand yuan.
Summary of the invention
The application provides a kind of tailing (back) fill to starch the method and system of preparation, have that mine tailing effluent concentration is high, Mine Tailings Utilization is low during to solve and to adopt vertical sand warehouse to carry out Tailing thickening and the wasting of resources, problem that cost is high.
In order to solve the problem, this application discloses the method for a kind of tailing (back) fill slurry preparation, comprising:
The mine tailing of mill tailings pumping plant is delivered to cyclone by Tailings transportation tube pump, by cyclone, mine tailing is concentrated; Wherein, the cone angle of described cyclone is 15 °, and diameter is 350mm, and operating pressure is 120Kpa, and row's mouth ratio is more than or equal to 0.44 and is less than or equal to 0.56;
The underflow obtained after concentrating through cyclone is delivered to the first agitator, the second agitator successively by pipeline; Or, be directly delivered to the second agitator;
The material to be mixed for the preparation of slip is carried to described second agitator; And, the mine tailing in the second agitator and described material to be mixed are stirred, obtains slip;
By described slip by Cemented filling to hopper, be fills up to down-hole.
Preferably, the feed thickness of described cyclone is 12%, and described cyclone feeding mouth diameter is 90mm, and cyclone flash mouth diameter is 100mm, and cyclone gape diameter is more than or equal to 40mm and is less than or equal to 50mm.
Preferably, described the underflow obtained after concentrating through cyclone is delivered to the first agitator, the second agitator successively by pipeline; Or, be directly delivered to the second agitator, comprise:
Monitor the flow of the underflow obtained after described cyclone concentrates;
When the flow of the described underflow obtained after described cyclone concentrates meets the first setting flow standard, the described underflow obtained after described cyclone concentrates directly is delivered to the second agitator by pipeline;
Otherwise,
By the described underflow obtained after described cyclone concentrates by Cemented filling to the first agitator; And monitoring is by the flow of the mine tailing of described first agitator outflow;
When the flow of the described mine tailing flowed out by described first agitator meets the second setting flow standard, by pipeline by extremely described second agitator of the Tailings transportation in described first agitator.
Preferably, described cyclone is multiple, and multiple a cluster cyclone synthesizes an a cluster cyclone; And,
Described a cluster cyclone, described first agitator and described second agitator are arranged on level altitude place above ground line;
Described material to be mixed is cementitious materials, and described cementitious materials comprises: cement and/or the solid powder of glue.
Preferably, described a cluster cyclone is arranged on distance ground vertical distance is on first platform of 22.5m; It is on second platform of 9m that described first agitator is arranged on distance ground vertical distance; It is on the 3rd platform of 4m that described second agitator is arranged on distance ground vertical distance.
Preferably, described, the mine tailing of mill tailings pumping plant is delivered to cyclone by Tailings transportation tube pump, after carrying out concentration step by cyclone to mine tailing, described method also comprises:
The Tailings Dam of mine tailing bleed off pipe self-flowing pastefill to mine is passed through in the overflow of described cyclone.
Correspondingly, disclosed herein as well is the system of a kind of tailing (back) fill slurry preparation, described system comprises:
Cyclone, Tailings transportation pipe, the first agitator, the second agitator, the first pipeline, second pipe, the 3rd pipeline, the 4th pipeline and hopper;
Described cyclone is connected with mill tailings pumping plant by described Tailings transportation pipe, delivers to described cyclone to make the mine tailing of mill tailings pumping plant by described Tailings transportation tube pump; Wherein, the cone angle of described cyclone is 15 °, and diameter is 350mm, and operating pressure is 120Kpa, and row's mouth ratio is more than or equal to 0.44 and is less than or equal to 0.56;
Described cyclone, described first agitator are connected in order successively with described second agitator; And described cyclone is connected with described first agitator by described first pipeline; Described second pipe one end is connected with described second agitator, and the other end connects and is connected with described first pipeline; Described first agitator is connected with described second agitator by the 3rd pipeline; To make the underflow obtained after described cyclone concentrates flow into described first agitator, described second agitator successively, or flow directly into described second agitator;
Described second agitator is used for the mine tailing in the second agitator and the material to be mixed for the preparation of slip to stir, and obtains slip;
Described hopper is connected with described second agitator by the 4th pipeline, to make described slip flow into described hopper, is fills up to down-hole.
Preferably, the feed thickness of described cyclone is 12%, and cyclone feeding mouth diameter is 90mm, and cyclone flash mouth diameter is 100mm, and cyclone gape diameter is more than or equal to 40mm and is less than or equal to 50mm.
Preferably, described system also comprises: first flow controller, second amount controller and the 3rd flow control valve;
Described first flow controller to be arranged between the tie point of described first pipeline and described second pipe and described first agitator and to be arranged on described first pipeline, to monitor the flow of the underflow obtained after described cyclone concentrates, and when the flow of the described underflow obtained after described cyclone concentrates meets the first setting flow standard, control the described underflow obtained after described cyclone concentrates and flow into described first agitator;
Described second amount controller is arranged on described second pipe, to monitor the flow of the underflow obtained after described cyclone concentrates, and when the flow of the described underflow obtained after described cyclone concentrates meets the second setting flow standard, control the described underflow obtained after described cyclone concentrates and flow into described second agitator;
Described 3rd flow control valve is arranged on described 3rd pipeline, the flow of the mine tailing flowed out by described first agitator with monitoring, and when described flow meets the 3rd setting flow standard, the mine tailing controlling to be flowed out by described first agitator flows into described second agitator.
Preferably, described cyclone is multiple, and multiple a cluster cyclone synthesizes an a cluster cyclone; And,
Described a cluster cyclone, described first agitator and described second agitator are arranged on level altitude place above ground line;
Described material to be mixed is cementitious materials, and described cementitious materials comprises: cement and/or the solid powder of glue.
Compared with prior art, the embodiment of the present application has the following advantages:
In the embodiment of the present application, by adopting, cone angle is 15 °, diameter is 350mm, operating pressure is 120Kpa, row's mouth is than being more than or equal to 0.44 and the cyclone being less than or equal to 0.56 carries out concentration to the mine tailing flowed out by ore dressing plant, the cocnentration factor of the mine tailing after concentration is made to reach 5-6 doubly, cyclone underflow mine tailing reaches 65-67%, and then reduces mine tailing effluent concentration; And underflow productive rate reaches more than 74%, cyclone effluent concentration is lower, improves Mine Tailings Utilization, meets the requirement of ground retrofilling, achieves Mining-filling balance, decrease the wasting of resources.
Meanwhile, directly carry out Tailing thickening by cyclone, to substitute the technological processes such as existing vertical sand warehouse thickening, biaxial rneader mix and blend, shorten the length of the whole technological process of tailing (back) fill slurry preparation, provide production efficiency.And system is simple, and floor space is little, small investment, and cost is low.
Accompanying drawing explanation
Fig. 1 is the flow chart of the method for a kind of tailing (back) fill slurry preparation described in the application first embodiment;
Fig. 2 is the flow chart of the method for a kind of tailing (back) fill slurry preparation described in the application second embodiment;
Fig. 3 is the structural representation of the system of a kind of tailing (back) fill slurry preparation described in the application the 3rd embodiment.
Detailed description of the invention
For enabling above-mentioned purpose, the feature and advantage of the application more become apparent, below in conjunction with the drawings and specific embodiments, the application is described in further detail.
With reference to Fig. 1, show the flow chart of the method for a kind of tailing (back) fill slurry preparation described in the application first embodiment.In the present embodiment, the method for described tailing (back) fill slurry preparation specifically can comprise the following steps:
Step 102, is delivered to cyclone by the mine tailing of mill tailings pumping plant by Tailings transportation tube pump, is concentrated by cyclone to mine tailing.
At present, cyclone is carry out physical fractionation by cyclone to mine tailing in the main application of industrial and mining enterprises.Its operating principle is centrifugal sedimentation.When two-phase (or three-phase) mixed liquor to be separated tangentially enters after in cyclone from cyclone periphery with certain pressure, produce the strong rotational shear turbulent motion of strong Three-Dimensional Elliptic.Owing to there is granularity difference (or density contrast) between coarse granule (or heavy phase) with fine grained (or light phase), its centrifugal force be subject to, centripetal buoyancy, fluid drag etc. vary in size, by centrifugal sedimentation effect, most crude particle (or heavy phase) is discharged through cyclone underflow opening, and most of fine grained (or light phase) is discharged by bleed off pipe, thus reach the object being separated classification.But the structure of existing cyclone arranges relative solidification with basic parameter, as cone angle be generally 45 °, operating pressure is generally 60Kpa, cause cyclone to be applied and comparatively limit to.
In the present embodiment, by resetting (e.g., cone angle is set to 15 °, diameter is set to 350mm, and operating pressure is set to 120Kpa, and 0.44≤row mouth is than≤0.56) cyclone parameter, cyclone is applied in Tailing thickening.
The parameter affecting cyclone concentrated effect is divided into structural parameters and the large class of operating parameter two, structural parameters comprise cyclone diameter, cone angle, row's mouth than (
) etc.; Operating parameter includes mouth pressure, input concentration etc.
Cyclone diameter
When pressure P is constant, Q
i∝ D
2, i.e. the productive capacity Q of cyclone
ito square being directly proportional of its diameter D.As flow-rate ratio R
f, other parameters one timings such as cone angle, formula 2 can be obtained in conjunction with formula 1:
Wherein, in formula 1, β represents mass fraction, Q
vrepresent volume flow, d
0represent overfall tube diameter, d
irepresent intake port, δ represents density of solid particles, Δ express liquid density, μ express liquid viscosity.
As can be seen here, partition size is directly proportional to 1/2 power of diameter D.When the conditions such as inlet pressure are constant, along with diminishing of cyclone diameter D, partition size d
50diminish with 1/2 power of diameter D, namely have more how fine grain material to enter underflow, then the underflow productive rate of cyclone is along with raising, illustrates that the cyclone of minor diameter is conducive to the raising of underflow productive rate.
Preferably, the cyclone of the small diameter meeting particle separation diameter requirement can be selected, then the process total amount requirement needed for the separate unit production capacity of selected cyclone and technique, calculates total number of units of required cyclone, and cyclone parallel combination is become an a cluster cyclone.
Cone angle
As diameter D, the flow-rate ratio R of cyclone
f, the timing of the parameter one such as inlet pressure P, in conjunction with above-mentioned formula 1, known:
when other parameter constants, sub-argument granularity d
50be directly proportional to 1/2 power of semi-cone angle α/2 tangent value, along with the reduction of cyclone cone angle, partition size d
50diminish with 1/2 power of α/2 tangent value, namely have more how fine grain material to enter underflow, then the underflow productive rate of cyclone is along with raising, illustrates that the cyclone of small-angle is conducive to the raising of underflow productive rate.
Row's mouth ratio
As diameter D, the flow-rate ratio R of cyclone
f, the timing of the parameter one such as inlet pressure P, known in conjunction with formula 1:
when other parameter constants, partition size d
50with row's mouth ratio
square root be inversely proportional to.
Usually, when designing cyclone, bleed off pipe size and cyclone diameter are certain proportion, are generally do=(0.2 ~ 0.4) D.After cyclone diameter is determined, overfall tube diameter also just determines, then the change of the direct row's of the decision mouth ratio of the change of underflow tap diameter.That is partition size d
50be inversely proportional to the square root of underflow opening, illustrate and increase underflow opening, partition size d
50reduce, namely have more how fine grain material to enter underflow, then the underflow productive rate of cyclone is along with raising, but when the excessive cyclone of underflow opening is used for concentrated, can cause the reduction of underflow density; Along with the reduction of underflow tap diameter, partition size d
50increase, underflow productive rate reduces thereupon, and underflow density increases thereupon.In the present embodiment, according to underflow productive rate and concentration, determine that the scope of arranging mouth ratio (comprises 0.44 and 0.56) between 0.44 to 0.56.
Inlet pressure
1/2 power of cyclone treating capacity and inlet pressure is in direct ratio, that is, when cyclone specification is constant, make its flow increase by 2 times, then inlet pressure P will increase by 4 times.
From above-mentioned formula 2,
therefore, as diameter D, cone angle, the flow-rate ratio R of cyclone
fetc. time constant, namely as the diameter D of a cyclone
1with the diameter D of another cyclone
2time identical, following relation can be obtained.Wherein, d
50-1represent the partition size of a described cyclone, d
50-2represent the partition size of another cyclone described, P
1represent the inlet pressure of a described cyclone, P
2represent the inlet pressure of another cyclone described.
1/4 power of partition size and inlet pressure is inversely proportional to.When the conditions such as cyclone diameter are constant, along with the increase of inlet pressure, partition size d
50diminish with 1/4 power of inlet pressure P, namely more how fine grain material is had to enter underflow, then the underflow productive rate of cyclone is along with raising, illustrate that the inlet pressure increasing cyclone is conducive to the raising of underflow productive rate, but diminish with the 1/4 power speed of inlet pressure P, illustrate and make partition size reduce 1/2, then inlet pressure will increase by 16 times.Inlet pressure may be summarized to be the increase of inlet pressure for the qualitative effect of the performance of cyclone, and production capacity increases, and partition size reduces, and underflow density increases, and effluent concentration reduces, but higher inlet pressure means higher separation costs.
Feed thickness
When other parameter constants, partition size d
50be directly proportional to the square root of feed solids volumetric concentration, namely input concentration increases, and partition size increases thereupon.This is because the increase of input concentration can make the effective phosphoric acid in cyclone and hinder the degree of sedimentation to increase, thus separation accuracy reduces with the increase of pulp density, and due to the resistance of swirling motion comparatively large, this resistance reduces effective pressure and falls, and partition size will be made to become large.Under a high concentration condition, in the vertex of a cone part close to underflow opening, near the wall of limit, then can form the thicker tight bed containing solid phase particles, the effective flow section of underflow opening be reduced, even likely blocks, cause discharge not smooth and affect separation process.Therefore, effective separation of charging aperture high-density suspended supernatant liquid be realized, will inlet pressure be improved.
As can be seen here,
When parameter constants such as cyclone cone angle, inlet pressures, partition size is directly proportional to 1/2 power of diameter, and the quadratic power for the treatment of capacity and cyclone diameter is in direct ratio.
When the parameter constant such as diameter, inlet pressure of cyclone, partition size is directly proportional to 1/2 power of semi-cone angle tangent value.
When the parameter constant such as diameter, inlet pressure of cyclone, partition size and row's mouth ratio
square root be inversely proportional to, that is to be inversely proportional to the square root of underflow opening, to be directly proportional to the square root of overfall.
When the parameter constant such as diameter, cone angle of cyclone, 1/4 power of partition size and inlet pressure is inversely proportional.1/2 power for the treatment of capacity and inlet pressure is in direct ratio.
Preferably, in the present embodiment, the cone angle of described cyclone is 15 °, and diameter is 350mm, and operating pressure is 120Kpa, and row's mouth ratio is more than or equal to 0.44 and is less than or equal to 0.56.
Step 104, is delivered to the first agitator, the second agitator by the underflow obtained after concentrating through cyclone successively by pipeline; Or, be directly delivered to the second agitator.
Step 106, carries the material to be mixed for the preparation of slip to described second agitator, and, the mine tailing in the second agitator and described material to be mixed are stirred, obtains slip.
In the present embodiment, the described material to be mixed for the preparation of slip can be cementitious materials, and wherein, described cementitious materials comprises cement or the solid powder of glue.
Step 108, by described slip by Cemented filling to hopper, be fills up to down-hole.
In sum, the method of a kind of tailing (back) fill slurry preparation described in the embodiment of the present application, by adopting cone angle to be 15 °, diameter is 350mm, operating pressure is 120Kpa, row's mouth is than being more than or equal to 0.44 and the cyclone being less than or equal to 0.56 carries out concentration to the mine tailing flowed out by ore dressing plant, the cocnentration factor of the mine tailing after concentration is made to reach 5-6 doubly, cyclone underflow density reaches 65-67%, productive rate reaches more than 74%, cyclone effluent concentration is lower, improve Mine Tailings Utilization, meet the requirement of ground retrofilling, achieve Mining-filling balance, decrease the wasting of resources.
Meanwhile, directly carry out Tailing thickening by cyclone, to substitute the technological processes such as existing vertical sand warehouse thickening, biaxial rneader mix and blend, shorten the length of the whole technological process of tailing (back) fill slurry preparation, provide production efficiency.And system is simple, and floor space is little, small investment, and cost is low.
With reference to Fig. 2, show the flow chart of the method for a kind of tailing (back) fill slurry preparation described in the application second embodiment.In the present embodiment, the method for described tailing (back) fill slurry preparation specifically can comprise the following steps:
Step 202, is delivered to cyclone by the mine tailing of mill tailings pumping plant by Tailings transportation tube pump, is concentrated by cyclone to mine tailing.
Preferably, the cone angle of described cyclone is 15 °, and diameter is 350mm, and operating pressure is 120Kpa, and row's mouth ratio is more than or equal to 0.44 and is less than or equal to 0.56.The feed thickness of cyclone is 12%, and described cyclone feeding mouth diameter is 90mm, and cyclone flash mouth diameter is 100mm, and cyclone gape diameter is more than or equal to 40mm and is less than or equal to 50mm.
Described cyclone is multiple, and multiple a cluster cyclone synthesizes an a cluster cyclone; And described a cluster cyclone, described first agitator and described second agitator are arranged on level altitude place above ground line.As, described a cluster cyclone being arranged on distance ground vertical distance is on first platform of 22.5m; It is on second platform of 9m that described first agitator is arranged on distance ground vertical distance; It is on the 3rd platform of 4m that described second agitator is arranged on distance ground vertical distance.
Preferably, in the present embodiment, the mine tailing that described cyclone can also be overflowed, is delivered to the Tailings Dam in mine by mine tailing bleed off pipe.
In the present embodiment, can be by concentration in ore dressing plant 12% low-grade tailings deliver to cyclone by the Tailings transportation tube pump that pipeline specifications is DN430 × 12.Described Tailings transportation pipe can arrange many as required, and to improve transfer efficiency, the present embodiment is not restricted this.
Step 204, is delivered to the first agitator, the second agitator by the underflow obtained after concentrating through cyclone successively by pipeline; Or, be directly delivered to the second agitator.
In the present embodiment, because the mine tailing default flows be pumped to from mill tailings pumping plant in cyclone is unstable, make the flow of the underflow obtained after cyclone concentrates and concentration also unstable, therefore described step 204 can comprise following sub-step:
Sub-step 2042, monitors the flow of the underflow obtained after described cyclone concentrates.
When the flow of the described underflow obtained after described cyclone concentrates meets the first setting flow standard, perform sub-step 2044; Otherwise, perform sub-step 2046.
Sub-step 2044, is directly delivered to the second agitator by the described underflow obtained after described cyclone concentrates by pipeline.
In the present embodiment, when the stability of flow of the described underflow obtained after described cyclone concentrates, directly the described underflow obtained after described cyclone concentrates is delivered to the second agitator, shortens technological process, improve efficiency.
Sub-step 2046, by the described underflow obtained after cyclone concentrates by Cemented filling to the first agitator; And detect the flow of the mine tailing flowed out by described first agitator.
When the flow of the described mine tailing flowed out by described first agitator meets the second setting flow standard, then continue to perform sub-step 2048.
Sub-step 2048, by pipeline by extremely described second agitator of the Tailings transportation in described first agitator.
In the present embodiment, when the instability of flow of the described underflow obtained after described cyclone concentrates, cushioned by the first agitator, meet Production requirement to make mine tailing flow.Here it should be noted that, the volume of described first agitator is greater than the volume of described second agitator, and e.g., described first agitator can be a diameter is 3m, is highly the cylinder of 3 meters; Described second agitator can be a diameter is 2m, is highly the cylinder of 2 meters.First agitator of large volume has stronger buffer capacity.
Step 206, carries the material to be mixed for the preparation of slip to described second agitator, and, the mine tailing in the second agitator and described material to be mixed are stirred, obtains slip.Wherein, described material to be mixed is cementitious materials, and described cementitious materials comprises: cement and/or the solid powder of glue.
In the present embodiment, the power of described second agitator can be set to 30kw, and impeller diameter is set to 600mm, and wheel speed is 240 turns/min.Stir continuously through described second agitator, material to be mixed is evenly distributed, improve the activity function of material to be mixed (e.g., cement), improve the mobility of attal.
Step 208, by described slip by Cemented filling to hopper, be fills up to down-hole.
In sum, the method of a kind of tailing (back) fill slurry preparation described in the embodiment of the present application, by adopting cone angle to be 15 °, diameter is 350mm, operating pressure is 120Kpa, row's mouth is than being more than or equal to 0.44 and the cyclone being less than or equal to 0.56 carries out concentration to the mine tailing flowed out by ore dressing plant, the cocnentration factor of the mine tailing after concentration is made to reach 5-6 doubly, cyclone underflow density reaches 65-67%, productive rate reaches more than 74%, cyclone effluent concentration is lower, improve Mine Tailings Utilization, meet the requirement of ground retrofilling, achieve Mining-filling balance, decrease the wasting of resources.
Meanwhile, directly carry out Tailing thickening by cyclone, to substitute the technological processes such as existing vertical sand warehouse thickening, biaxial rneader mix and blend, shorten the length of the whole technological process of tailing (back) fill slurry preparation, provide production efficiency.And system is simple, and floor space is little, small investment, and cost is low.Further, due to cyclone, to concentrate Filling Station flow process short, and system number of units is few, very easily realizes the Automated condtrol of whole system.
It should be noted that, for embodiment of the method, in order to simple description, therefore it is all expressed as a series of combination of actions, but those skilled in the art should know, the embodiment of the present application is not by the restriction of described sequence of movement, because according to the embodiment of the present application, some step can adopt other orders or carry out simultaneously.Secondly, those skilled in the art also should know, the embodiment described in manual all belongs to preferred embodiment, and involved action might not be that the embodiment of the present invention is necessary.
With reference to Fig. 3, show the structural representation of the system of a kind of tailing (back) fill slurry preparation described in the application the 3rd embodiment.In the present embodiment, described system comprises:
Cyclone 1, Tailings transportation pipe 2, first agitator 4, second agitator 5, first pipeline 6, second pipe 7, the 3rd pipeline 8, the 4th pipeline 17 and hopper 16.Wherein, the design parameter of described cyclone 1 can be as follows: cone angle: 15 °, diameter: 350mm, operating pressure: 120Kpa, row's mouth ratio is more than or equal to 0.44 and is less than or equal to 0.56, feed thickness 12%, cyclone feeding mouth diameter: 90mm, cyclone flash mouth diameter: 100mm, cyclone gape diameter is more than or equal to 40mm and is less than or equal to 50mm.
In the present embodiment, described cyclone 1 is connected with mill tailings storehouse pumping plant by described Tailings transportation pipe 2, is pumped to described cyclone 1 to make the mine tailing in mill tailings storehouse by described Tailings transportation pipe 2.
Preferably, described system can also comprise: mine tailing bleed off pipe 3.Described cyclone 1 is connected with the Tailings Dam in mine by described mine tailing bleed off pipe 3, and the mine tailing overflowed to make described cyclone 1 flow to the Tailings Dam in mine by described mine tailing bleed off pipe 3.
In the present embodiment, described cyclone 1, described first agitator 4 are connected in order successively with described second agitator 5: described cyclone 1 is connected with described first agitator 4 by described first pipeline 6; Described second pipe 7 one end is connected with described second agitator 5, and the other end connects and is connected with described first pipeline 6; Described first agitator 4 is connected with described second agitator 5 by the 3rd pipeline 8; To make the underflow obtained after described cyclone 1 is concentrated flow into described first agitator 4, described second agitator 5 successively, or flow directly into described second agitator 5.
Preferably, described cyclone is multiple, and multiple a cluster cyclone synthesizes an a cluster cyclone.And described cyclone 1, described first agitator 4 and described second agitator 5 all arrange setting height place above ground level.
As, described cyclone 1 being arranged on distance ground vertical distance is on first platform of 22.5m, being arranged on by described first agitator 4 apart from ground vertical distance is on second platform of 9m, and described second agitator 5 being arranged on distance ground vertical distance is on the 3rd platform of 4m.Because the Tailings Dam distance cyclone 1 in mine is comparatively near, the mine tailing overflowed by described cyclone 1 certainly can flow to the Tailings Dam in mine under the effect of gravitional force, decreases resource consumption.
Wherein, described second agitator 5 may be used for the mine tailing in the second agitator and the material to be mixed for the preparation of slip to stir, and obtains slip.Wherein, described material to be mixed is cementitious materials, and described cementitious materials comprises: cement and/or the solid powder of glue.
In the present embodiment, by pipeline, the tank car (e.g., bulk cement carrier 15) that material to be mixed is housed can be connected with material bin (e.g., cement bin 12), further, by screw feeder 13, described cement bin 12 is connected with described second agitator 5.To provide the cement of stirring wherein by described bulk cement carrier 15 to described second agitator 5, the top of described cement bin 12 can also be provided with deduster 14 and inspection eye.Described deduster 14 is used for preventing foreign material from entering described cement bin 12.
Here it should be noted that, in the present embodiment can but lose to be limited to and provide cement by bulk cement carrier 15, cement bin 12 and screw feeder 13 to described second agitator 5.As, can also by adding the mixture of cement or the solid powder of glue or cement and the solid powder of glue manually in described second agitator 5; Or provide cementitious materials by (as: mixture of cement or the solid powder of glue or cement and the solid powder of glue) tank car that cementitious materials is housed to material bin; The present embodiment is not restricted this.
Described hopper 16 is connected with described second agitator 5 by the 4th pipeline 17, to make described slip flow into described hopper, is fills up to down-hole.Wherein, described hopper 16 is generally positioned at below ground, and hopper 16 passes through underground filling pipeline by ground paste filling to down-hole.
In the present embodiment, the system of described tailing (back) fill slurry preparation can also comprise: first flow controller 9, second amount controller 10 and the 3rd flow control valve 11.
Described first flow controller 9 to be arranged between the tie point of described first pipeline 6 and described second pipe 7 and described first agitator 4 and to be arranged on described first pipeline 4, the flow of the underflow obtained after described cyclone 1 is concentrated with monitoring, and when the flow of the described underflow obtained after described cyclone 1 is concentrated meets the first setting flow standard, control the described underflow obtained after described cyclone 1 is concentrated and flow into described first agitator 4.
Described second amount controller 10 is arranged on described second pipe 7, the flow of the underflow obtained after described cyclone 1 is concentrated with monitoring, and when the flow of the described underflow obtained after described cyclone 1 is concentrated meets the second setting flow standard, control the described underflow obtained after described cyclone 1 is concentrated and flow directly into described second agitator 5.
Described 3rd flow control valve 11 is arranged on described 3rd pipeline 8, to monitor the flow of the mine tailing flowed out by described first agitator 4, and when the flow of the described mine tailing flowed out by described first agitator 4 meets the 3rd setting flow standard, the mine tailing controlling to be flowed out by described first agitator 4 flows into described second agitator 5.
In sum, the system of a kind of tailing (back) fill slurry preparation described in the embodiment of the present application, by adopting cone angle to be 15 °, diameter is 350mm, operating pressure is 120Kpa, row's mouth is than being more than or equal to 0.44 and the cyclone being less than or equal to 0.56 carries out concentration to the mine tailing flowed out by ore dressing plant, the cocnentration factor of the mine tailing after concentration is made to reach 5-6 doubly, cyclone underflow density reaches 65-67%, productive rate reaches more than 74%, cyclone effluent concentration is lower, improve Mine Tailings Utilization, meet the requirement of ground retrofilling, achieve Mining-filling balance, decrease the wasting of resources.
Meanwhile, directly carry out Tailing thickening by cyclone, to substitute the technological processes such as existing vertical sand warehouse thickening, biaxial rneader mix and blend, shorten the length of the whole technological process of tailing (back) fill slurry preparation, provide production efficiency.And system is simple, and floor space is little, small investment, and cost is low.Further, due to cyclone, to concentrate Filling Station flow process short, and system number of units is few, very easily realizes the Automated condtrol of whole system.
Each embodiment in this manual all adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar part mutually see.
Above the method and system of a kind of tailing (back) fill slurry preparation that the application provides is described in detail, apply specific case herein to set forth the principle of the application and embodiment, the explanation of above embodiment is just for helping method and the core concept thereof of understanding the application; Meanwhile, for one of ordinary skill in the art, according to the thought of the application, all will change in specific embodiments and applications, in sum, this description should not be construed as the restriction to the application.
Claims (4)
1. a system for tailing (back) fill slurry preparation, it is characterized in that, described system comprises:
Cyclone, Tailings transportation pipe, the first agitator, the second agitator, the first pipeline, second pipe, the 3rd pipeline, the 4th pipeline and hopper;
Described cyclone is connected with mill tailings pumping plant by described Tailings transportation pipe, delivers to described cyclone to make the mine tailing of mill tailings pumping plant by described Tailings transportation tube pump; Wherein, the cone angle of described cyclone is 15 °, and diameter is 350mm, and operating pressure is 120Kpa, and row's mouth ratio is more than or equal to 0.44 and is less than or equal to 0.56;
Described cyclone, described first agitator are connected in order successively with described second agitator; And described cyclone is connected with described first agitator by described first pipeline; Described second pipe one end is connected with described second agitator, and the other end connects and is connected with described first pipeline; Described first agitator is connected with described second agitator by the 3rd pipeline; To make the underflow obtained after described cyclone concentrates flow into described first agitator, described second agitator successively, or flow directly into described second agitator;
Described second agitator is used for the mine tailing in the second agitator and the material to be mixed for the preparation of slip to stir, and obtains slip;
Described hopper is connected with described second agitator by the 4th pipeline, to make described slip flow into described hopper, is fills up to down-hole.
2. the system as claimed in claim 1, is characterized in that, the feed thickness of described cyclone is 12%, and cyclone feeding mouth diameter is 90mm, and cyclone flash mouth diameter is 100mm, and cyclone gape diameter is more than or equal to 40mm and is less than or equal to 50mm.
3. system as claimed in claim 1, is characterized in that, also comprise: first flow controller, second amount controller and the 3rd flow control valve;
Described first flow controller to be arranged between the tie point of described first pipeline and described second pipe and described first agitator and to be arranged on described first pipeline, to monitor the flow of the underflow obtained after described cyclone concentrates, and when the flow of the described underflow obtained after described cyclone concentrates meets the first setting flow standard, control the described underflow obtained after described cyclone concentrates and flow into described first agitator;
Described second amount controller is arranged on described second pipe, to monitor the flow of the underflow obtained after described cyclone concentrates, and when the flow of the described underflow obtained after described cyclone concentrates meets the second setting flow standard, control the described underflow obtained after described cyclone concentrates and flow into described second agitator;
Described 3rd flow control valve is arranged on described 3rd pipeline, the flow of the mine tailing flowed out by described first agitator with monitoring, and when described flow meets the 3rd setting flow standard, the mine tailing controlling to be flowed out by described first agitator flows into described second agitator.
4. the system as claimed in claim 1, is characterized in that, described cyclone is multiple, and multiple a cluster cyclone synthesizes an a cluster cyclone; And,
Described a cluster cyclone, described first agitator and described second agitator are arranged on level altitude place above ground line;
Described material to be mixed is cementitious materials, and described cementitious materials comprises: cement and/or the solid powder of glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410075226.8A CN103936345B (en) | 2014-03-03 | 2014-03-03 | The method and system of a kind of tailing (back) fill slurry preparation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410075226.8A CN103936345B (en) | 2014-03-03 | 2014-03-03 | The method and system of a kind of tailing (back) fill slurry preparation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103936345A CN103936345A (en) | 2014-07-23 |
| CN103936345B true CN103936345B (en) | 2016-01-13 |
Family
ID=51184268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410075226.8A Active CN103936345B (en) | 2014-03-03 | 2014-03-03 | The method and system of a kind of tailing (back) fill slurry preparation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103936345B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105945040A (en) * | 2016-06-27 | 2016-09-21 | 安徽金联地矿科技有限公司 | Mine waste treatment process |
| CN112246455A (en) * | 2020-10-16 | 2021-01-22 | 云南迪庆有色金属有限责任公司 | Grading coarse sand granularity control method for tailing damming cyclone |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2198600A1 (en) * | 1994-09-14 | 1996-03-21 | David C. Yang | Device and process for gravitational separation of solid particles |
| CN102979571A (en) * | 2012-12-08 | 2013-03-20 | 山东汇发矿业科技有限公司 | All tailing sand dry discharge bonding filling system and filling method of filling system |
| CN202970783U (en) * | 2012-12-08 | 2013-06-05 | 山东汇发矿业科技有限公司 | Full tailing sand cementation filling system |
| CN103470303A (en) * | 2013-10-02 | 2013-12-25 | 黑龙江宏宇电站设备有限公司 | Mine filling system and filling method thereof |
-
2014
- 2014-03-03 CN CN201410075226.8A patent/CN103936345B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2198600A1 (en) * | 1994-09-14 | 1996-03-21 | David C. Yang | Device and process for gravitational separation of solid particles |
| CN102979571A (en) * | 2012-12-08 | 2013-03-20 | 山东汇发矿业科技有限公司 | All tailing sand dry discharge bonding filling system and filling method of filling system |
| CN202970783U (en) * | 2012-12-08 | 2013-06-05 | 山东汇发矿业科技有限公司 | Full tailing sand cementation filling system |
| CN103470303A (en) * | 2013-10-02 | 2013-12-25 | 黑龙江宏宇电站设备有限公司 | Mine filling system and filling method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103936345A (en) | 2014-07-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204738840U (en) | Thick liquid device is made to underground mine consolidated fill | |
| CN105834012B (en) | Wholegrain level tailing cemented filling material starches continuous preparation system and its preparation technology | |
| CN104929683B (en) | Total-tailings paste filling and stockpiling combined treatment method based on deep-cone thickener | |
| CN104829150B (en) | Thickening method and thickening system of whole tailing material slurry paste | |
| CN107476821B (en) | A kind of ultra-fine crude tailings Paste-filling System | |
| CN101215975A (en) | Whole tailings depth controllable homogeneous concentration method | |
| CN103350037B (en) | Overflow particle size control method for cyclone | |
| CN201041052Y (en) | Filling type paste preparation system for quarry | |
| CN105525945B (en) | A kind of cementing continuous device for filling of high concentration crude tailings and fill method | |
| CN106065783B (en) | For the device for filling and its application method of extensive non-metal mine | |
| CN1202569A (en) | High concentrate paste-filling technology and equipment in mine | |
| CN106869995A (en) | A kind of flotation tailing Total tailing consolidated fill method | |
| CN103936345B (en) | The method and system of a kind of tailing (back) fill slurry preparation | |
| CN108412541B (en) | It is a kind of for handling the consolidated fill system and placement method in goaf | |
| CN202970782U (en) | Full tailing sand cementation filling system | |
| CN104225969A (en) | Method and device for concentrating molybdenum ore flotation tailing ore pulp | |
| CN205297644U (en) | Device is filled in succession in full tailings gluing of high concentration on non - colliery mountain | |
| CN103203124B (en) | A kind of tailings dewatering technique and device | |
| CN114109487A (en) | Coarse fraction full tailing paste filling method | |
| CN205823327U (en) | Device for filling for extensive non-metal mine | |
| CN108097447A (en) | A kind of middle phosphorus ore method for separating and separation system | |
| CN208695919U (en) | A kind of slurry concentrating dehydration device | |
| CN103867228A (en) | Tailing paste filling device | |
| CN206889018U (en) | A kind of flotation tailing Total tailing consolidated fill system | |
| CN207025554U (en) | A kind of tailings glass system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Lian Minjie Inventor after: Cui Xueqi Inventor after: Li Quanjing Inventor after: Si Buzhi Inventor after: Ma Yimin Inventor after: Song Dexuan Inventor after: Li Xuezhong Inventor after: Liu Zhisen Inventor after: Zhang Shuai Inventor after: Liu Xiaojun Inventor after: Song Jiadong Inventor after: Liu Xiaosheng Inventor before: Lian Minjie Inventor before: Li Quanjing Inventor before: Si Buzhi Inventor before: Ma Yimin Inventor before: Song Dexuan Inventor before: Li Xuezhong Inventor before: Liu Zhisen Inventor before: Zhang Shuai Inventor before: Liu Xiaojun Inventor before: Liu Xiaosheng Inventor before: Cui Xueqi |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: LIAN MINJIE MA YIMIN SONG DEXUAN LI XUEZHONG LIU ZHISEN ZHANG SHUAI LIU XIAOJUN LIU XIAOSHENG CUI XUEQI LI QUANJING SI BUZHI TO: LIAN MINJIE MA YIMIN SONG DEXUAN LI XUEZHONG LIU ZHISEN ZHANG SHUAI LIU XIAOJUN SONG JIADONG LIU XIAOSHENG CUI XUEQI LI QUANJING SI BUZHI |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |