CN114790914A - Underground space-based mining, selecting, filling and water recycling method and control system - Google Patents
Underground space-based mining, selecting, filling and water recycling method and control system Download PDFInfo
- Publication number
- CN114790914A CN114790914A CN202210485304.6A CN202210485304A CN114790914A CN 114790914 A CN114790914 A CN 114790914A CN 202210485304 A CN202210485304 A CN 202210485304A CN 114790914 A CN114790914 A CN 114790914A
- Authority
- CN
- China
- Prior art keywords
- filling
- mining
- slurry
- underground
- data
- 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.)
- Pending
Links
- 238000011049 filling Methods 0.000 title claims abstract description 130
- 238000005065 mining Methods 0.000 title claims abstract description 73
- 238000000034 method Methods 0.000 title claims abstract description 51
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 35
- 238000004064 recycling Methods 0.000 title claims abstract description 15
- 239000002002 slurry Substances 0.000 claims abstract description 60
- 239000000463 material Substances 0.000 claims abstract description 40
- 238000000926 separation method Methods 0.000 claims abstract description 40
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 39
- 239000011707 mineral Substances 0.000 claims abstract description 39
- 239000002562 thickening agent Substances 0.000 claims abstract description 16
- 239000008235 industrial water Substances 0.000 claims abstract description 14
- 230000005611 electricity Effects 0.000 claims abstract description 11
- 239000004576 sand Substances 0.000 claims abstract description 11
- 239000008394 flocculating agent Substances 0.000 claims abstract description 9
- 238000000227 grinding Methods 0.000 claims abstract description 8
- 238000005189 flocculation Methods 0.000 claims abstract description 6
- 230000016615 flocculation Effects 0.000 claims abstract description 6
- 238000007667 floating Methods 0.000 claims abstract description 5
- 238000004062 sedimentation Methods 0.000 claims abstract description 5
- 238000006243 chemical reaction Methods 0.000 claims abstract description 4
- 230000008569 process Effects 0.000 claims description 25
- 238000012545 processing Methods 0.000 claims description 12
- 238000003860 storage Methods 0.000 claims description 11
- 238000007726 management method Methods 0.000 claims description 9
- 238000005086 pumping Methods 0.000 claims description 9
- 238000003756 stirring Methods 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 7
- 230000018044 dehydration Effects 0.000 claims description 7
- 238000006297 dehydration reaction Methods 0.000 claims description 7
- 230000010354 integration Effects 0.000 claims description 7
- 230000009471 action Effects 0.000 claims description 6
- 238000013499 data model Methods 0.000 claims description 6
- 238000011161 development Methods 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 238000005429 filling process Methods 0.000 claims description 4
- 239000002699 waste material Substances 0.000 claims description 4
- 239000011449 brick Substances 0.000 claims description 3
- 238000004364 calculation method Methods 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 238000005553 drilling Methods 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 claims description 3
- 239000013072 incoming material Substances 0.000 claims description 3
- 230000003993 interaction Effects 0.000 claims description 3
- 210000001503 joint Anatomy 0.000 claims description 3
- 230000006855 networking Effects 0.000 claims description 3
- 239000013307 optical fiber Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 2
- 238000009736 wetting Methods 0.000 claims 1
- 238000007711 solidification Methods 0.000 abstract description 2
- 230000008023 solidification Effects 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 5
- 238000010248 power generation Methods 0.000 description 5
- 239000011435 rock Substances 0.000 description 5
- 239000000428 dust Substances 0.000 description 4
- 239000004568 cement Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 230000008719 thickening Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- -1 particularly Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F15/00—Methods or devices for placing filling-up materials in underground workings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
- F03B13/06—Stations or aggregates of water-storage type, e.g. comprising a turbine and a pump
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The invention discloses a mining, selecting, filling and water recycling method and a control system based on an underground space.A mineral ore is transported to the underground selecting factory space, low-concentration slurry is obtained through mineral separation operations of crushing, grinding, floating, cyaniding and the like of a selecting factory, the low-concentration slurry is transported to a skid-mounted all-in-one machine for coarse and fine separation, fine-fraction tailing slurry enters a thickener and is combined with a flocculating agent to generate flocculation and sedimentation reaction and is compressed into high-concentration slurry, the high-concentration slurry enters a stirrer to be mixed with a cementing material after steady sand discharge, the stirred slurry enters a vertical stirrer to be further stirred, and finally the slurry is automatically flowed or pumped to a dead zone to be filled. And industrial water generated by mineral separation and filling is used for generating electricity. The ore dressing-filling system is transferred to the underground, so that the conveying distance between deep mining and surface ore dressing and filling systems is shortened, the problem of surface pipeline laying is avoided, the filling concentration is favorably improved, the strength solidification time of a filling body is shortened, and the industrial water recycling is realized.
Description
Technical Field
The invention relates to a mining, mineral separation and filling method based on underground space and an energy storage and power generation control system for industrial water recycling, and belongs to the technical field of gold mine tailings and industrial water comprehensive utilization.
Background
With the deepening of mining, the reserves of superficial resources are reduced year by year, and a plurality of mines enter deep mining at present.
The prior art is mostly combined with a surface mineral separation and filling system in deep mining. The deep mining and the transportation distance of the surface system are long, and the intermediate transportation and lifting cost is very high. As production increases, each mine haulage and pit lift is run at full capacity, which adds cost to the cost of money in the mine, and is inefficient, long-lived, and human capital intensive. On the other hand, the construction and construction of the surface system have serious pollution to the surrounding environment.
The Chinese patent with publication number CN108915765A discloses an underground full tailings-waste stone paste filling system and a filling method, wherein the filling system can be used for constructing the paste filling system by utilizing the existing roadway or chamber engineering, so that the investment of infrastructure is reduced. The problems of cement conveying from the ground surface to the underground and cement consolidation and blockage in the cement storage process are solved. However, the technical measures do not relate to the problems of ore crushing treatment and pollutant treatment, particularly dust and sewage treatment by using an underground space, do not realize the whole operation process of mining, mineral separation and filling by using an underground space foundation engineering, and do not recycle industrial water generated by mineral separation and filling.
Disclosure of Invention
The invention aims to solve the technical problem of providing a mining, selecting, filling and water recycling method and a control system based on an underground space, which realize mining, mineral separation and filling operations by using underground space foundation engineering and utilize industrial water to perform fall power generation.
The invention is realized by the following technical scheme:
the underground space-based mining, selecting, filling and water recycling method is characterized by comprising the following steps of: the method comprises the following steps of (1) conveying ores to an underground separation plant space, obtaining low-concentration slurry through mineral separation operations such as crushing, grinding and floating, cyaniding and the like of a separation plant, conveying the low-concentration slurry to a skid-mounted all-in-one machine for coarse and fine separation, allowing fine-fraction tailing slurry to enter a thickener to be combined with a flocculating agent for flocculation and sedimentation reaction, compressing the fine-fraction tailing slurry into high-concentration slurry, allowing the high-concentration slurry to enter a stirrer after steady-state sand discharge and mixing with a cementing material, allowing the stirred slurry to enter a vertical stirrer for further stirring, and finally allowing the slurry to flow automatically or be pumped to a dead zone for filling; and pumping industrial water generated by the mineral separation and filling system to an earth surface reservoir, realizing power generation by utilizing earth surface and underground fall, and using electric energy in the mineral separation and filling process.
The underground space-based mining, selecting, filling and water recycling method comprises the following steps:
(1) conveying ores to a middle-section chute, paving tracks which cover the chute at the upper opening, and placing a crusher on one side of the tracks to crush larger ores at one time;
(2) conveying the crushed ore to a crushing chamber of a selecting factory through a middle-section chute for secondary crushing;
(3) the crushed coarse aggregate meets the requirement of mineral separation standard and then enters an ore grinding chamber, and the whole process is carried out in the closed chamber;
(4) performing ore dressing to obtain full tailings;
(5) conveying the whole tailings to a skid-mounted all-in-one machine through a pumping system for coarse-fine separation, and enabling coarse-fraction tailings to flow into a high-frequency vibrating screen for dehydration for later use; fine fraction tailings enter a thickener under the action of rotational force and then are combined with a flocculating agent for rapid dehydration, wrapping water overflows under extrusion pressure and circulates to an underground water storage system through an overflow groove, and high-concentration slurry is prepared and stored in a sand silo for stable discharge; the coarse fraction tailings can also be used for paving and spraying a road at the bottom of an underground development roadway; when the underground requirement cannot completely consume coarse-fraction tailings, the tailings are lifted to the ground surface to be used as building sand, and the tailings can be widely applied to the building industries such as ceramsite, water permeable brick, solid cementing material mixing agent, wall plastering and the like;
(6) the slurry in the thickener is conveyed to a horizontal mixer and mixed with a cementing material, and the slurry is transferred to a bottom vertical mixer for full stirring after being stirred, wherein the concentration of the slurry in the process is 2-4% higher than that of the underflow of the thickener;
(7) the slurry which is uniformly stirred is conveyed to a goaf through a pumping system for filling, the process from the skid-mounted all-in-one machine to a pipe network system is mutually connected, and the whole seamless butt joint is realized in each process;
(8) industrial water generated by mineral separation and filling is pumped to the ground surface and then is transferred to an underground space water storage bin, and the difference between the ground surface and the underground elevation in the transferring process is utilized to generate electricity, so that the generated electricity can be used as a mineral separation and filling system.
Furthermore, the cementing material is stored in a cementing material bin, and is directly lowered to the cementing material bin from an earth surface drilling hole, and the bin body is embedded in the chamber; the cementing material enters the underground cementing material chamber under the action of air pressure, and then is cleaned by high-pressure air, so that the hardening of the material on the inner wall of the drilled hole due to moisture is avoided.
Furthermore, the coarse aggregate is used for top-bottom connection of different filling mining methods, when downward cementing filling is adopted, part of the coarse aggregate is added, and when upward filling is adopted, fine aggregate is adopted for cementing, so that the whole process application of underground coarse and fine aggregate is realized.
Further, data sharing is carried out among the mining, ore dressing and filling; the quantity of the dense slurry of the terminal filling system is fed back to the mineral separation system and the filling system according to the quantity of the mining quantity or the size of the dead zone, the filling system calculates according to the feedback numerical value, and the quantity of the dense slurry is adjusted according to the calculation result, so that data balance between mining and filling is realized, and unstable supply and demand caused by unbalance of the mining quantity or the filling quantity is avoided.
Furthermore, all systems in the underground space realize automatic control, and information of the underground space is transmitted to an earth surface dispatching room through optical fibers for real-time operation; the dispatching center implements remote control to the underground operation.
Adopt, select, fill and water cyclic utilization control system based on underground space, its characterized in that: the mining, mineral processing and filling data precise control system is used as a primary control system, the primary control system is set as a main station, and an integrated module is deployed; the secondary subsystem of the primary control system comprises a mining control quantum system, a mineral processing capacity subsystem and a filling station filling quantum system which are deployed on site; the secondary subsystem of the primary control system also comprises a data integration management subsystem; carry out data transmission through the main website between the subsystem to realize the closed loop management of mining, ore dressing and filling, avoid the resource to cause the waste, work efficiency obtains improving, and accurate control system can realize mobile device app networking simultaneously, and the user can carry out data query and operation in real time through app.
Further, wherein the mining and beneficiation modules: according to data fed back by the earth surface dispatching center, mining amount arrangement is carried out, the data information source and the processing capacity of the plant selection avoid ore overstock caused by the fact that the plant selection cannot process too large mining amount in time, dynamic data balance is achieved, and data interaction carries out data transmission through the earth surface dispatching center; wherein ore dressing and filling module: the data of the filling station feeds back data obtained by a filling terminal in real time, the terminal is realized by three-dimensional scanning, a data model of a to-be-filled dead zone is calculated, the filling volume is calculated, the data model is transmitted to a data integrated management subsystem through a main station, filling slurry is put down according to the volume of the dead zone, and the filling data interacts with mineral processing incoming material data in real time; wherein filling and mining: and after filling is finished, feeding back the data to the mining subsystem in time, and starting mining amount supply by the mining subsystem according to the data.
The invention has the beneficial technical effects that:
firstly, the ore dressing-filling system is transferred to the underground, so that the conveying distance between deep mining and the surface ore dressing-filling system is shortened, and the problem of surface pipeline laying is avoided.
Secondly, the filling system is closer to a filling stope, the length of a filling pipeline is greatly reduced, and the filling system is more beneficial to improving the filling concentration and shortening the strength solidification time of a filling body. The improvement of filling concentration can shorten the obturator intensity and form time, and the obturator that has higher strength can guarantee follow-up mining operation, has also shortened because of obturator intensity is high enough influence the latency of mining, and mining time shortens the improvement of further having guaranteed ore production.
Thirdly, the construction of the underground space system can reduce the problems of environmental pollution, land occupation and the like. The closed space of the underground chamber is fully utilized to recover pollutants, particularly, dust, sewage and noise can be treated in the underground space, and the pollution to the surrounding environment is reduced.
And fourthly, the underground space construction can fully utilize the tunnel and the chamber engineering. The chamber engineering has better stability of the rock structure, can be used for a long time, and relatively reduces the maintenance cost.
Fifth, the invention realizes the data integration and sharing among the mining-mineral separation-filling processes, can reasonably exploit resources, realize the balance of supply and demand, save a large amount of manpower and material resources and play the comprehensive benefits of the system integration and sharing.
Sixth, the invention realizes the energy storage and power generation control of mineral processing and filling industrial water, can recycle the industrial water generated by the front-end process, makes up for the industrial power consumption of pumping the underground industrial water to the earth surface, and can use the surplus electric quantity of the stored energy for the mining-mineral processing-filling system, and the synchronous industrial grid connection is a green and economic development mode.
Detailed Description
The present invention is further illustrated by the following examples.
The whole system for realizing the method comprises a crushing system, a drop shaft warehousing system, a mineral separation grinding and floating system, a conveying system from mineral separation to a filling station, a filled dense sand bin, a cementing material bin, a flocculation addition bin, a horizontal mixer and a vertical mixer with two-stage stirring, a circulating water bin, a filling industrial pumping device, a filling pipe network roadway and a water storage dead zone which are built in an underground space.
The method of the invention comprises the following steps: the ore is transported to the underground separation plant space, low-concentration slurry with the concentration of about 25% is obtained through mineral separation operations such as crushing, grinding and floating, cyaniding and the like of the separation plant, the low-concentration slurry is transported to a skid-mounted all-in-one machine for coarse and fine separation, fine-fraction tailing slurry with the concentration of about 15% enters a thickener and is combined with a flocculating agent to generate flocculation and sedimentation reaction, the high-concentration slurry with the concentration of about 65% is compressed into high-concentration slurry, the high-concentration slurry enters a stirrer to be mixed with a cementing material after steady-state sand discharge, the slurry after stirring is further stirred in a vertical stirrer after the concentration is increased by 2%, and finally the slurry is automatically flowed or pumped to a vacant area for filling. The industrial water produced by the mineral separation and filling system is stored, pumped to an earth surface reservoir for storage, generated electricity is recycled by utilizing the height difference, the generated electricity is used in the mineral separation and filling industry of the system, and the surplus electric quantity realizes industrial grid connection.
The method comprises the following specific steps:
(1) the ore is conveyed to a middle-section chute, rails which are arranged at the upper opening of the chute in a covering mode are arranged at the upper opening of the chute in a longitudinal and transverse mode, and a crusher is placed on one side of the rails to crush larger ore at one time.
(2) And conveying the crushed ore to a crushing chamber of the selecting factory through a middle-section chute for secondary crushing.
(3) The crushed coarse aggregate meets the requirement of mineral separation standard and then enters an ore grinding chamber, and the whole process is carried out in the closed chamber to avoid dust from flying outwards.
(4) And (4) beneficiation is carried out to obtain the full tailings with the concentration of 25 wt%.
(5) Conveying the whole tailings to a skid-mounted all-in-one machine through a pumping system for coarse-fine separation, and allowing coarse-fraction tailings to flow into a high-frequency vibrating screen for dehydration for later use; the fine fraction tailings enter a thickener under the action of rotational force and then are combined with a flocculating agent for rapid dehydration, wrapping water overflows under extrusion pressure and circulates to an underground water storage system through an overflow groove, and high-concentration slurry is prepared and stored in a sand silo for stable discharge.
The coarse fraction tailings can also be used for paving and guniting a road at the bottom of an underground development roadway. When the coarse fraction tailings cannot be completely consumed in underground requirements, the tailings are lifted to the ground surface to be used as building sands, and the tailings can be widely applied to building industries such as ceramsite, water permeable bricks, solid-state cementing material mixing agents, wall plastering and the like.
(6) And (3) conveying the slurry in the thickener to a horizontal mixer, mixing the slurry with a cementing material, stirring, and then putting the mixture to a bottom vertical mixer for fully stirring, wherein the concentration of the mixture in the process is 2-4% higher than that of the underflow of the thickener.
(7) The slurry which is uniformly stirred is conveyed to the goaf through a pumping system for filling, the process from the skid-mounted all-in-one machine to the pipe network system is mutually connected, and the whole seamless butt joint is realized in each process.
The thickener is used for thickening and caching slurry. The cementing material is stored in a cementing material bin and directly lowered into the cementing material bin from an earth surface drilling hole, and the bin body is embedded in the chamber. The bottom end of the material discharge hole and the cementing material bin are sealed through a sealing steel ring and a rivet, so that underground chamber pollution caused by dust is avoided. The cementing material enters the underground cementing material chamber under the action of air pressure, and then is cleaned by high-pressure air, so that the hardening of the material on the inner wall of the drilled hole due to moisture is avoided. And conveying the gelling materials in the bin into a horizontal stirrer through a powder metering screw scale at the bottom according to different proportions to be mixed with the slurry, so as to realize accurate addition.
The coarse aggregate can be used for top-bottom abutting of different filling mining methods, part of the coarse aggregate can be added when downward cementing filling is adopted, and fine aggregate is adopted for cementing when upward filling is adopted, so that the whole process application of underground coarse and fine aggregate is realized.
The whole process of the metering parameters such as the discharging concentration, the flow, the unit consumption of the flocculating agent, the addition of the cementing material and the like of the thickener is realized by an automatic system, the whole process completely depends on automatic control, and the error generated by the traditional manual control is distinguished.
In the method, data sharing is carried out among mining, ore dressing and filling; the quantity of the dense slurry of the terminal filling system is fed back to the mineral separation system and the filling system according to the quantity of the mining quantity or the size of the dead zone, the filling system calculates according to the feedback value, and the quantity of the dense slurry is adjusted according to the calculation result, so that data balance between mining and filling is realized, and unstable supply and demand caused by unbalance of the mining quantity or the filling quantity is avoided. All systems in the underground space realize automatic control, information transmission of the underground space is transmitted to a ground surface dispatching room through optical fibers for real-time operation, workers can realize remote underground control in a dispatching center, and the problems of low efficiency, safety and the like of underground space operation are solved.
Meanwhile, because the underground space is closed, the working environment and conditions are worse than the ground surface space, the actual operation of the underground space is transmitted to a ground surface dispatching center for operation in a data integration mode, so that the quality of the operating environment of workers is improved on one hand, and the personnel casualties caused by the development of underground safety accidents are avoided on the other hand. The automatic intelligence and information technology realizes real scene simulation in the underground and the ground surface, and promotes the intelligent mining complete set of service of the mine.
At present, mine exploitation enters a deep exploitation stage, and selection and utilization of underground space construction selection-filling engineering is a development trend under the restriction of lifting, tailing pond and surface area.
The fine fraction tailing filling mining method is characterized in that 25wt% of full tailings from a sorting plant are input into a cyclone for cyclone classification, coarse fraction tailings (-200 meshes) are put down to a high-frequency vibrating screen at the bottom for dehydration and then are conveyed to a sand yard for building application or underground roadway bedding and guniting through a belt, and reasonable utilization of the coarse tailings is achieved through the application of the partial tailings. The cyclone graded fine-grained tailings enter an unpowered thickener to be combined with a flocculating agent to generate flocculation sedimentation and thickening compression, stable discharge is realized after corresponding concentration is achieved, the cyclone graded fine-grained tailings are combined with a cementing material in a horizontal mixer and fully mixed in a vertical mixer to prepare high-concentration slurry, the high-concentration slurry with structural flow which is not layered, not isolated and does not dehydrate in a stable state is pumped to a stope by a self-flow or industrial pump to fill a dead zone, and the slurry with different concentrations is proportioned according to production requirements to realize that the 3d strength is the lowest and reaches 0.8Mpa filling body, so that the full utilization of the fine-grained tailings is realized. By the method, comprehensive utilization of the thickness is realized, the problem of discharging the traditional tailings to a tailing pond is avoided, the problem of secondary pollution on the earth surface is reduced, meanwhile, a high-strength filling body formed by fine-grained tailings is fully coupled with surrounding rocks to play a certain supporting and wrapping role on the surrounding rocks, deformation and damage of the surrounding rocks can be effectively supported, a soft rock buffer function in a certain space is provided for releasing the earth pressure energy, the secondary mining function can be fully used as a stope face by means of a platform of the filling body, ore dilution is effectively reduced, and operation safety is guaranteed.
The high-strength filling body is formed by proportioning the cementing material on the fine-grain tailings, so that the high-strength filling body has high strength, the high-strength filling body is effectively combined with the fine-grain tailings and the cementing material, the fine-grain tailings and the cementing material are completely wrapped, the equivalent magnitude is obtained on the number of specific surface areas, when the cementing material is hydrated, the grains are completely contacted, a stable net-shaped structure body is formed among slurry bodies, the fine-grain tailings in the whole area range are ensured to be completely infiltrated into the high-strength filling body, and the possibility is provided for forming the strength of the filling body. On the other hand, the fine-grain tailings and the cementing material are combined to generate hydration reaction, and because of the stable floccule, redundant water molecules are difficult to be extruded in the floccule, only a small part of wrapping water overflows, so that no redundant water is discharged from a stope, and the method is also the technical advantage of the fine-grain tailings in comparison with the traditional coarse-grain tailings filling.
Overflow water is generated in the whole ore dressing and filling process, the overflow water generated by ore dressing and filling is concentrated to a dead zone of an underground space for storage, water is pumped to an earth surface reservoir for storage in a power load valley section after a certain cubic quantity is reached, and then is discharged to an underground space reservoir in a power load peak period, the difference of the above-ground and underground elevation is fully utilized for power generation and storage, industrial electricity consumption of industrial circulating water pumped to the earth surface from the underground is reduced, balance can be realized under the condition of large electricity generation water flow by utilizing the height difference, and therefore industrial electricity consumption can be realized by being connected to a power grid system.
The embodiment of the control system comprises a mining, mineral processing and filling data accurate control system serving as a primary control system, wherein the primary control system is set as a master station and an integrated module is deployed. The second-level subsystem of the first-level control system comprises a mining control quantum system, a mineral processing capacity subsystem and a filling station filling quantum system which are deployed on the site. The secondary subsystem of the primary control system also comprises a data integration management subsystem. Carry out data transmission through main website between the subsystem to realize the closed loop management of mining, ore dressing and filling, avoid the resource to cause the waste, work efficiency obtains improving, and accurate control system can realize mobile device app networking simultaneously, and the user can carry out data query and operation in real time through app.
Wherein the mining and beneficiation modules: according to data fed back by the earth surface dispatching center, mining amount arrangement is carried out, the data information source and the processing capacity of the plant selection avoid ore overstock caused by the fact that the plant selection cannot process too large mining amount in time, therefore, dynamic data balance is achieved, and data transmission is carried out through the earth surface dispatching center in data interaction.
Wherein ore dressing and filling module: the data of the filling station feeds back data obtained by a filling terminal in real time, the terminal is realized through three-dimensional scanning, a data model of a dead zone to be filled is calculated, the filling volume is calculated, the data model is transmitted to a data integration management subsystem through a main station, filling slurry is placed down according to the volume of the dead zone, and the filling data interacts with mineral separation incoming material data in real time.
Wherein filling and mining: and after filling is finished, feeding back the data to the mining subsystem in time, and starting mining amount supply by the mining subsystem according to the data.
Claims (8)
1. The underground space-based mining, selecting, filling and water recycling method is characterized by comprising the following steps of: the method comprises the following steps of (1) conveying ores to an underground separation plant space, obtaining low-concentration slurry through mineral separation operations such as crushing, grinding and floating, cyaniding and the like of a separation plant, conveying the low-concentration slurry to a skid-mounted all-in-one machine for coarse and fine separation, allowing fine-fraction tailing slurry to enter a thickener to be combined with a flocculating agent for flocculation and sedimentation reaction, compressing the fine-fraction tailing slurry into high-concentration slurry, allowing the high-concentration slurry to enter a stirrer after steady-state sand discharge and mixing with a cementing material, allowing the stirred slurry to enter a vertical stirrer for further stirring, and finally allowing the slurry to flow automatically or be pumped to a dead zone for filling; industrial water generated by the beneficiation and filling system is pumped to an earth surface reservoir, electricity generation is realized by utilizing the earth surface underground fall, and electric energy is used in the beneficiation and filling process.
2. The underground space-based mining, selecting, filling and water recycling method of claim 1, comprising the steps of:
(1) transporting the ore to a middle-section drop shaft, paving rails which cover the upper opening of the drop shaft at intervals in a longitudinal and transverse mode, and placing a crusher on one side of the rails to crush the larger ore for one time;
(2) conveying the crushed ore to a crushing chamber of a selecting factory through a middle-section chute for secondary crushing;
(3) the crushed coarse aggregate meets the requirement of mineral separation standard and then enters an ore grinding chamber, and the whole process is carried out in the closed chamber;
(4) performing ore dressing to obtain full tailings;
(5) conveying the whole tailings to a skid-mounted all-in-one machine through a pumping system for coarse-fine separation, and enabling coarse-fraction tailings to flow into a high-frequency vibrating screen for dehydration for later use; fine-fraction tailings enter a thickener under the action of rotational force and then are combined with a flocculating agent for rapid dehydration, wrapping water overflows under extrusion pressure and circulates to an underground water storage system through an overflow groove, and high-concentration slurry is prepared and stored in a sand silo for steady discharge; the coarse fraction tailings can also be used for paving and guniting a road at the bottom of an underground development roadway; when the underground requirement cannot completely consume coarse-grained tailings, the tailings are lifted to the ground surface to be used as building sand, and can be widely applied to building industries such as ceramsite, water permeable brick, solid cementing material mixing agent, wall plastering and the like;
(6) the slurry in the thickener is conveyed to a horizontal stirrer and mixed with a cementing material, and the slurry is transferred to a vertical stirrer at the bottom after stirring for full stirring, wherein the concentration of the slurry in the process is 2-4% higher than that of the underflow of the thickener;
(7) the slurry which is uniformly stirred is conveyed to a goaf through a pumping system for filling, the process from the skid-mounted all-in-one machine to a pipe network system is mutually connected, and the whole seamless butt joint is realized in each process;
(8) industrial water generated by mineral separation and filling is pumped to the ground surface and then is transferred to an underground space water storage bin, and the difference between the ground surface and the underground elevation in the transferring process is utilized to generate electricity, so that the generated electricity can be used as a mineral separation and filling system.
3. The underground space-based mining, selecting, filling and water recycling method according to claim 2, wherein the cementing material is stored in a cementing material bin, and is directly lowered into the cementing material bin from an earth surface drilling hole, and the bin body is embedded in the chamber; the cementing material enters the underground cementing material chamber under the action of wind pressure, and then is cleaned by high-pressure wind, so that the hardening caused by the wetting of the material on the inner wall of the drilled hole is avoided.
4. The underground space-based mining, selecting, filling and water recycling method of claim 2, wherein the coarse aggregate is used for top-bottom connection of different filling mining methods, part of the coarse aggregate is added when downward cemented filling is adopted, and fine aggregate is adopted for cementation when upward filling is adopted, so that the full process application of underground coarse and fine aggregate is realized.
5. The underground space-based mining, selecting, filling and water recycling method according to any one of claims 1 to 4, wherein: data sharing among mining, ore dressing and filling; the quantity of the dense slurry of the terminal filling system is fed back to the mineral separation system and the filling system according to the quantity of the mining quantity or the size of the dead zone, the filling system calculates according to the feedback value, and the quantity of the dense slurry is adjusted according to the calculation result, so that data balance between mining and filling is realized, and unstable supply and demand caused by unbalance of the mining quantity or the filling quantity is avoided.
6. The underground space-based mining, selecting, filling and water recycling method according to any one of claims 1 to 4, wherein: the automatic control of all systems in the underground space is realized, and the information is transmitted to a ground surface dispatching room through optical fibers for real-time operation; the dispatching center implements remote control to the underground operation.
7. The underground space-based mining, selecting, filling and water recycling control system according to any one of claims 1 to 6, wherein: the mining, mineral processing and filling data precise control system is used as a primary control system, the primary control system is set as a main station, and an integrated module is deployed; the secondary subsystem of the primary control system comprises a mining control quantum system, a mineral processing capacity subsystem and a filling station filling quantum system which are deployed on site; the secondary subsystem of the primary control system also comprises a data integration management subsystem; carry out data transmission through main website between the subsystem to realize the closed loop management of mining, ore dressing and filling, avoid the resource to cause the waste, work efficiency obtains improving, and accurate control system can realize mobile device app networking simultaneously, and the user can carry out data query and operation in real time through app.
8. The underground space-based control system of claim 7, wherein: wherein the mining and beneficiation modules: mining amount arrangement is carried out according to data fed back by the earth surface dispatching center, the data information source and the processing capacity of the plant selection avoid ore overstock caused by the fact that the plant selection cannot process the overlarge mining amount in time, dynamic data balance is achieved, and data interaction carries out data transmission through the earth surface dispatching center; wherein ore dressing and filling module: the data of the filling station feeds back data obtained by a filling terminal in real time, the terminal is realized by three-dimensional scanning, a data model of a to-be-filled dead zone is calculated, the filling volume is calculated, the data model is transmitted to a data integrated management subsystem through a main station, filling slurry is put down according to the volume of the dead zone, and the filling data interacts with mineral processing incoming material data in real time; wherein filling and mining: and after filling is finished, feeding back the data to the mining subsystem in time, and starting mining quantity supply by the mining subsystem according to the data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210485304.6A CN114790914A (en) | 2022-05-06 | 2022-05-06 | Underground space-based mining, selecting, filling and water recycling method and control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210485304.6A CN114790914A (en) | 2022-05-06 | 2022-05-06 | Underground space-based mining, selecting, filling and water recycling method and control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114790914A true CN114790914A (en) | 2022-07-26 |
Family
ID=82462601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210485304.6A Pending CN114790914A (en) | 2022-05-06 | 2022-05-06 | Underground space-based mining, selecting, filling and water recycling method and control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114790914A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117189114A (en) * | 2023-10-25 | 2023-12-08 | 山东黄金矿业科技有限公司 | Automatic filling and mining system |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2053364C1 (en) * | 1995-05-23 | 1996-01-27 | Иванов Николай Федорович | Method for mining of steeply dipping ore bodies and methods for mining, processing and concentration of copper, and/or copper-zinc, and/or zinc, and/or sulfur ores with possible content of gold, silver and other precious and rare-earth elements from steeply dipping ore bodies |
| CN101775985A (en) * | 2010-02-10 | 2010-07-14 | 东北大学 | Deeply buried iron mineral resource underground mining and concentrating integration system |
| CN105317458A (en) * | 2015-10-29 | 2016-02-10 | 北京科技大学 | Grading zonal paste backfilling system and method for total tailings of metal minerals |
| CN108915765A (en) * | 2018-07-02 | 2018-11-30 | 北京科技大学 | A kind of underground crude tailings-barren rock Paste-filling System and placement method |
| CN110700835A (en) * | 2019-11-07 | 2020-01-17 | 北京矿冶科技集团有限公司 | Shallow underground mining, selecting and charging integrated system for lead-zinc ores |
| CN210875766U (en) * | 2019-10-25 | 2020-06-30 | 山东黄金矿业科技有限公司充填工程实验室分公司 | Tailless mine separation and filling system based on skid-mounted all-in-one machine |
| CN113359653A (en) * | 2021-07-15 | 2021-09-07 | 山东黄金矿业科技有限公司充填工程实验室分公司 | Smart filling control system based on cloud platform big data fusion |
| CN114109487A (en) * | 2021-11-09 | 2022-03-01 | 北京科技大学 | Coarse fraction full tailing paste filling method |
-
2022
- 2022-05-06 CN CN202210485304.6A patent/CN114790914A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2053364C1 (en) * | 1995-05-23 | 1996-01-27 | Иванов Николай Федорович | Method for mining of steeply dipping ore bodies and methods for mining, processing and concentration of copper, and/or copper-zinc, and/or zinc, and/or sulfur ores with possible content of gold, silver and other precious and rare-earth elements from steeply dipping ore bodies |
| CN101775985A (en) * | 2010-02-10 | 2010-07-14 | 东北大学 | Deeply buried iron mineral resource underground mining and concentrating integration system |
| CN105317458A (en) * | 2015-10-29 | 2016-02-10 | 北京科技大学 | Grading zonal paste backfilling system and method for total tailings of metal minerals |
| CN108915765A (en) * | 2018-07-02 | 2018-11-30 | 北京科技大学 | A kind of underground crude tailings-barren rock Paste-filling System and placement method |
| CN210875766U (en) * | 2019-10-25 | 2020-06-30 | 山东黄金矿业科技有限公司充填工程实验室分公司 | Tailless mine separation and filling system based on skid-mounted all-in-one machine |
| CN110700835A (en) * | 2019-11-07 | 2020-01-17 | 北京矿冶科技集团有限公司 | Shallow underground mining, selecting and charging integrated system for lead-zinc ores |
| CN113359653A (en) * | 2021-07-15 | 2021-09-07 | 山东黄金矿业科技有限公司充填工程实验室分公司 | Smart filling control system based on cloud platform big data fusion |
| CN114109487A (en) * | 2021-11-09 | 2022-03-01 | 北京科技大学 | Coarse fraction full tailing paste filling method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117189114A (en) * | 2023-10-25 | 2023-12-08 | 山东黄金矿业科技有限公司 | Automatic filling and mining system |
| CN117189114B (en) * | 2023-10-25 | 2024-03-12 | 山东黄金矿业科技有限公司 | Automatic filling and mining system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108915765B (en) | Underground full tailing-waste stone paste filling system and filling method | |
| CN103979884B (en) | A kind of method utilizing discarded concrete to prepare coal mine filling lotion | |
| CN108979713B (en) | A kind of processing of tailing and placement method | |
| CN102261262B (en) | High-performance foam mortar filling method for mine stope | |
| CN101215976B (en) | Down-hole gangue pump packing system and method | |
| CN109578071B (en) | Movable intelligent paste filling system | |
| CN103590851A (en) | Underground waste-rock concrete preparation, pumping and filling system and method | |
| CN114472462B (en) | Underground-aboveground linkage coal gangue disposal system and disposal method | |
| CN104556917A (en) | High-early-strength filling material for coal mine goaf | |
| CN201982137U (en) | Underground preparation device taking waste rock as aggregate concrete filling material | |
| CN109956712A (en) | Continous way builds recycled aggregate filling coal mine gob system and technique | |
| CN102101788A (en) | Red mud-based fluid swelling filling material | |
| CN102661170A (en) | Process and device for continuously stirring and filling paste-like body for mine manufactured by use of building waste | |
| CN105776911A (en) | Gel material for ultra-fine tailing filling and dry heaping | |
| CN102101790A (en) | Tailing-based fluid swelling filling material | |
| CN112412531A (en) | Method for selling tailings pond | |
| CN114790914A (en) | Underground space-based mining, selecting, filling and water recycling method and control system | |
| CN101912866B (en) | Iron tailing solidifying method | |
| CN114810073A (en) | High-position grouting filling method for working face goaf | |
| CN102775105A (en) | Mine paste filling aggregate prepared from building waste materials and preparation method of mine paste filling aggregate | |
| CN109538290B (en) | Slurry pressure-soaking filling process | |
| CN201763388U (en) | Foam mortar preparation device | |
| CN202467923U (en) | Continuous stirring and filling device for preparing mining paste by utilizing building wastes | |
| CN116003055A (en) | Coal chemical industry gasification slag coal gangue backfill and preparation method thereof | |
| WO2016065906A1 (en) | Ground material feeding system and feeding process for solid backfilling mining of coal mine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20220726 |