CN114474406A - High-concentration full-tailing cemented filling system - Google Patents
High-concentration full-tailing cemented filling system Download PDFInfo
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- CN114474406A CN114474406A CN202210149317.6A CN202210149317A CN114474406A CN 114474406 A CN114474406 A CN 114474406A CN 202210149317 A CN202210149317 A CN 202210149317A CN 114474406 A CN114474406 A CN 114474406A
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- 239000004568 cement Substances 0.000 claims abstract description 59
- 238000003756 stirring Methods 0.000 claims abstract description 49
- 230000008719 thickening Effects 0.000 claims abstract description 28
- 239000004576 sand Substances 0.000 claims abstract description 16
- 239000007788 liquid Substances 0.000 claims abstract description 12
- 239000002002 slurry Substances 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims description 20
- 239000004570 mortar (masonry) Substances 0.000 claims description 18
- 239000000843 powder Substances 0.000 claims description 11
- 238000003860 storage Methods 0.000 claims description 3
- 238000005065 mining Methods 0.000 description 13
- 238000000034 method Methods 0.000 description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 230000007246 mechanism Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 239000002562 thickening agent Substances 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 238000013019 agitation Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000002956 ash Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000002440 industrial waste Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 239000002910 solid waste Substances 0.000 description 2
- 239000011398 Portland cement Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 235000020985 whole grains Nutrition 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C9/00—General arrangement or layout of plant
- B28C9/02—General arrangement or layout of plant for producing mixtures of clay or cement with other materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
- B28C7/02—Controlling the operation of the mixing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
- B28C7/04—Supplying or proportioning the ingredients
- B28C7/0404—Proportioning
- B28C7/0418—Proportioning control systems therefor
-
- 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
- E21F15/005—Methods or devices for placing filling-up materials in underground workings characterised by the kind or composition of the backfilling material
-
- 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
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/18—Special adaptations of signalling or alarm devices
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Automation & Control Theory (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The invention relates to a high-concentration full-tailing cemented filling system which comprises a filling subsystem, a pipeline subsystem and a control subsystem, wherein the filling subsystem is arranged on the surface of the earth surface of an area to be filled; the filling subsystem comprises a deep cone thickening device, a cement device and a stirring device, the pipeline subsystem comprises a horizontal pipeline and a vertical pipeline, the deep cone thickening device is connected with the stirring device through the horizontal pipeline, the cement device is respectively connected with the stirring device, the stirring device is communicated with a region to be filled through the vertical pipeline, and the inclination of the vertical pipeline 160 is less than or equal to 1 degree; the control subsystem comprises a sand slurry control device, a sand level control device is connected with the deep cone thickening device, a cement bin level control device is connected with the cement device, and a stirring liquid level control device is connected with the stirring device; according to the invention, the accurate determination of the optimal ratio is realized by setting the control system.
Description
Technical Field
The invention relates to the technical field of mine tailing filling, in particular to a high-concentration full tailing cemented filling system.
Background
The filling mining technology which utilizes a large amount of mine solid waste materials can fully, safely and effectively recover resources, preserve landscape resources, prevent surface collapse and reduce the discharge of the solid waste materials to the surface, is a direct and effective way for fully utilizing tailing resources to develop land-saving, energy-saving, material-saving, environmental-friendly and waste-utilizing, and is a strategic new technology supporting sustainable development of mining industry in modern mining industry. Therefore, the non-waste or less-waste mining technology is huge in the markets of metal, nonmetal, building materials, chemical engineering and other mines in China, and has wide application prospect. This is because the environmental protection requirements of our country are getting higher and higher, which makes many mines have to implement non-waste mining to meet the environmental protection requirements. After the engineering project of the high-concentration full-tailings cemented filling station is built, the method has important effects on the aspects of ensuring mining safety production, improving recovery rate, protecting environment and surface facilities and preventing water, and in addition, all tailings of mine waste-ore dressing are utilized, a new tailings pond is not required to be built, and waste-free mining is basically realized. Effectively protecting the natural ecological environment in the mining area and the periphery.
The high-concentration full-tailing cemented filling system adopts a process and equipment which mainly adopts tailing direct sedimentation concentration and self-flow conveying. The high concentration refers to the maximum concentration which can be reached by natural sedimentation of the whole grain grade tailings in the vertical sand silo, and the strength and the filling capacity of the tailings can meet the design requirements after the tailings are mixed with a proper amount of cementing materials. The mining by the filling method reduces the loss, dilution and underground drainage cost, improves the resource recovery rate and saves the later-stage (closed pit) treatment cost. The filling system can fill the underground goaf in time by operation, so that ground pressure disasters are eliminated, the mining safety is ensured, and the ground surface is protected from collapse; meanwhile, the industrial waste residue-full tailings are fully and effectively utilized, a large amount of land resources occupied by squeezing due to a tailings pond are saved, non-waste exploitation is realized in a true sense, the method conforms to the national 'energy conservation and emission reduction' political policy, and good economic benefits and social environmental benefits are achieved.
However, the automation control degree of the existing tailings filling system is low, and large manpower and engineering quantity are needed.
Disclosure of Invention
The invention aims to provide a high-concentration full-tailing cemented filling system, which is used for realizing the filling treatment of tailings based on a high-concentration full-tailing cemented filling process and combining automation and process treatment capacity among equipment of the system.
The invention is realized by the following steps:
the high-concentration full-tailings cemented filling system is used for filling a goaf in a well, and comprises a filling subsystem, a pipeline subsystem and a control subsystem, wherein the filling subsystem is arranged on the surface of the ground of a region to be filled, the pipeline subsystem is connected with a filling device, and the control subsystem is connected with the filling subsystem. Wherein, fill the subsystem and include dark thick device of awl, cement device and agitating unit, pipeline subsystem includes horizontal pipeline and vertical pipeline, and dark thick device of awl is connected with agitating unit through horizontal pipeline, and the cement device is connected with agitating unit respectively, and agitating unit communicates through vertical pipeline and the region of waiting to pack, and the gradient of vertical pipeline 160 is less than or equal to 1. The control subsystem comprises a sand slurry control device, a sand level control device, a cement bin level control device, a stirring liquid level control device and a stirring device, wherein the sand level control device is connected with the deep cone thickening device; the deep cone thickening device is internally provided with tail mortar, and the cement device is internally provided with cement materials.
Furthermore, a buffer plate is arranged between the deep cone thickening device and the surface of the earth surface of the area to be filled, wherein the buffer plate is a raft plate.
Furthermore, the deep cone thickening device is connected with an aggregate feeding system, and the aggregate feeding system comprises a whole tailing feeding system of a mine factory and a dry tailing feeding system of a storage yard, and is connected with the deep cone thickening device through a feeding pipeline respectively.
Further, the bottom end of the cement device is provided with a micro powder scale, the bottom end of the cement device is connected with a spiral feeding device, and the spiral feeding device is connected with a stirring device.
Further, the vertical pipe 160 includes an inner pipe and an outer pipe, wherein a distance between an outer wall of the inner pipe and an inner wall of the outer pipe is 50 mm.
Furthermore, a slurry discharge valve and an underground chamber are arranged at the bottom of the inner pipe.
Further, the filling double line of the vertical pipe 160 is determined as follows:
N＝L/H；
wherein N is a filling multiple line, L is a total length of the vertical pipe 160, and H is a height difference between an inlet and an outlet of the vertical pipe 160; the filling multiple line is less than or equal to 8.
Furthermore, the sand slurry control device comprises a mortar densimeter and a flowmeter which are arranged on the horizontal pipeline, an upper computer which is respectively connected with the mortar densimeter and the flowmeter, and an electromagnetic valve which is arranged on the horizontal pipeline and is connected with the upper computer.
Further, the cement bin level control device comprises a radar level gauge, a spiral feeding controller and an upper computer which are arranged on the cement device, wherein the upper computer is respectively connected with the spiral feeding controller and the micro powder scale.
Further, stirring liquid level control device is including setting up ultrasonic wave level gauge, stirring controller and the host computer in agitating unit, and the host computer is connected with stirring controller and ultrasonic wave level gauge respectively.
The beneficial effect of above-mentioned scheme:
according to the high-concentration full-tailing cemented filling system provided by the invention, the filling material is obtained through the connection of a plurality of devices; and a control system is also arranged to realize accurate determination of the optimal ratio.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.
FIG. 1 is a schematic view of the overall structure of a high-concentration full-tailings cemented filling system provided by the invention;
FIG. 2 is a schematic view of a partial structure of a high-concentration full-tailings cemented filling system provided by the present invention;
fig. 3 is a schematic structural diagram of a control subsystem provided by the present invention.
Icon:
100-a filling system;
110-deep cone thickener; 120-cement plant; 130-a stirring device; 140-a spiral feeding device; 150-horizontal pipes; 160-vertical pipes; 170-area to be filled; 180-a control subsystem;
111-deep cone dense tank; 112-a buffer plate;
121-a cement bin; 122-micro powder scale;
181-an upper computer; 182-a mortar control device; 183-mortar densitometer; 184-a flow meter; 185-cement silo control; 186-radar level gauge; 187-screw feed controller; 188-stirring liquid level control device; 189-ultrasonic level gauge.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The following is a detailed description of a high-concentration full-tailings cemented filling system 100 according to an embodiment of the present invention:
in this example, high concentration refers to the maximum concentration of whole tailings that settle in still water. The weight concentration of the tailing sand depends on the specific weight, the granularity, the composition and the thickness of a compression layer. The volume concentration depends mainly on the particle size and composition. The cementing material is mainly cement or its substitute, such as slag, dry fly ash and other industrial waste residue.
The high-concentration full-tailing cemented filling system 100 provided by the patent is suitable for mining by adopting a shallow hole shrinkage stoping subsequent filling method.
The filling subsystem is used for mixing filling raw materials and filling the raw materials into the area 170 to be filled, so that the filling processing of the mining area is realized. In this embodiment, the filling subsystem is disposed on the surface of the area 170 to be filled, and fills the empty underground mine area with the filler through the pipeline structure.
In this embodiment, the filling subsystem includes a deep cone thickener 110, a cement device 120, and a mixer 130.
In this embodiment, the deep cone thickening device 110 mainly includes a deep cone thickening tank 111, and in order to install and fix the deep cone thickening tank 111, a buffer plate 112 is installed between the ground surface and the deep cone thickening tank 111, and in this embodiment, the buffer plate 112 is a raft plate for buffering and fixing the installation and fixation of the deep cone thickening tank 111.
In this embodiment, the deep cone thickening tank 111 is used for stirring and precipitating tailings, and is externally connected with an aggregate feeding system, including a whole tailing feeding system of a mining plant and a dry tailing feeding system of a storage yard, and the two systems are connected with the deep cone thickening tank 111 through a feeding pipeline (not shown), and the whole tailing and the dry tailing are sent to the deep cone thickening tank 111 through a conveying device in the pipeline. In order to achieve sufficient treatment of the tailings in the tank, stirring mechanisms are provided in the deep-cone thickening tank 111, and in this embodiment, the number of stirring mechanisms is 2, and in other embodiments, the stirring mechanisms may be provided according to the power and the treatment amount required for the treatment.
In this embodiment, the number of the deep cone thickening tanks 111 is 1, and in other embodiments, the deep cone thickening tanks may be set correspondingly according to a specific processing amount.
The deep cone thickener 110 is used for treating tailings, and in this embodiment, the filler further includes cement. The treatment for the cement material is in this embodiment mainly based on a cement plant 120.
In the present embodiment, the cement device 120 includes a plurality of cement silo 121, and four cement silos 121 are specifically located.
Referring to the figure, the cement bin 121 comprises a conical bin body and a micro powder scale 122 arranged at the bottom of the bin body. Wherein spiral feeding device 140 has been placed to micro powder scale 122's bottom, and in this embodiment, spiral feeding device 140 is double helix structure to and along the helical blade of hob setting, the external power part of hob is rotating electrical machines, drives the hob and carries out rotary motion. The screw blade moves and conveys the cement powder to a specific direction under the rotation of the screw rod.
In the embodiment, the taper angle of the cement bin 121 is less than or equal to 60 degrees, and the fluid gasification pipe is arranged at the position of 1/4-1/3 above the lower opening of the cement bin 121 so as to prevent cement in the bin from arching and blocking.
In this embodiment, the cement powder moves in a direction from the bottom end of the screw feeder 140 toward the stirring device 130.
In this embodiment, the stirring device 130 is mainly a device for mixing and processing the tailings and the cement, and the stirring device 130 is connected with the cement bin 121 through the spiral feeding device 140 and connected with the deep cone thickening tank 111 through the horizontal pipeline 150, so as to place the tailings and the cement in the device for stirring.
In this embodiment, a stirring mechanism (not shown) is mainly disposed in the stirring device 130, and the cement and the tailings are mixed and stirred by the stirring mechanism.
The bottom end of the stirring device 130 is connected with a vertical pipeline 160, the vertical pipeline 160 is directly communicated with the area to be filled, and the filling material obtained by mixing cement and tailings is conveyed to the area to be filled. In this embodiment, the vertical pipe 160 includes an inner pipe and an outer pipe, the outer pipe being disposed against the mine wall in the mine, and the inner pipe being disposed through the outer pipe. Wherein, the distance between the outer wall of the inner pipe and the inner wall of the outer pipe is 50 mm. In order to ensure that the filling material accurately enters the filling area, the perpendicularity of the outer pipe and the inner pipe is controlled to be 1 degree. In order to ensure the stability of the fixation of the inner pipe, the inner pipe and the outer pipe are fixed by 42.5-grade portland cement.
In the present embodiment, the filling double line of the vertical pipe 160 is set in accordance with the following condition:
N＝L/H；
where N is a filling multiple line, L is a total length of the vertical pipe 160, and H is a height difference between an inlet and an outlet of the vertical pipe 160.
For a pipeline in the filling system 100, the filling multiple line reflects the gravity feed distance that the filling system 100 can achieve, and is affected by many constantly changing factors. In the embodiment, the weight concentration of the tailing cemented filling mortar is 65-75%, and in the embodiment, the filling doubling line is less than or equal to 8.
The filling system 100 provided by the embodiment mixes and stirs the tailings and the cement materials into the filling materials through the arrangement of the deep cone thickening device 110, the cement device 120, the stirring device 130, the horizontal pipeline 150 and the vertical pipeline 160, and conveys the filling materials into the area to be filled 170 through the pipelines.
In the embodiment, the filling strength depends on the ratio of ash to sand and the ratio of grey to water (the larger the ratio of ash to sand and the ratio of grey to water is, the higher the strength is, but the higher the ratio of grey to water or the higher the concentration of mortar is, the more difficult the pipeline transportation is, the lower the filling rate of the stope, and the poor effect of roof contact.
In the embodiment, based on the conditions of the strength, the conveying, the dehydration rate and the like of the filling body, the determined filling scheme and process are a high-concentration full-tailing cemented filling scheme and process with the filling material being more than or equal to 68%. The tailing proportioning test is carried out aiming at the factors of the strength and the pipe conveying filling performance, and the following test results are obtained:
TABLE 1
In this example, table 1 shows the test results of different materials.
Based on the above test results, an appropriate ratio is determined because the ratio is mainly controlled by the deep cone thickener 110, the cement device 120 and the stirring device 130, and the control of the filling material is realized by controlling the above three devices.
In order to realize accurate control, the filling system 100 in this embodiment further includes a control subsystem 180, which includes a mortar material control device, a cement silo level control device, a stirring liquid level control device 188 and an upper computer 181. The host computer 181 is connected with the mortar material control device, the cement silo level control device and the stirring liquid level control device 188 through an electric connection mode, a data processing module and a command sending module are arranged in the host computer 181, the received data are processed, and based on the set ratio and the optimal ratio relation, a control command is sent to the mortar material control device, the cement silo level control device and the stirring liquid level control device 188, so that accurate matching and control of filling materials are realized.
In this embodiment, the sand slurry control device 182 includes a sand slurry density meter 183 and a flow meter 184 which are arranged on the horizontal pipeline 150, and further includes an electromagnetic valve which is arranged on the horizontal pipeline 150, the sand slurry density meter 183 and the flow meter 184 collect the density and flow of the detected fluid in real time, and send the collected data to the upper computer 181 through the communication module, the upper computer 181 controls the electromagnetic valve according to the set proportioning relationship and the optimal proportioning relationship, and controls the flow rate of the flow and the sand slurry flowing into the stirring device 130 in unit time.
Similarly, the cement silo control device 185 includes a radar level gauge 186 disposed in the cement silo and further includes a micro powder scale 122 disposed at the bottom of the cement silo 121, the radar level gauge 186 is used for determining height data of cement in the cement silo 121, and the volume of cement flowing into the stirring device 130 per unit time is determined by the change of the height. The amount of the flowing cement is determined by the micro-powder scale 122, the data are transmitted to the upper computer 181, and the cement amount is controlled by the proportioning relation and the optimal proportioning relation in the upper computer 181. The control method is that the upper computer 181 sends a control command to the spiral feeding controller 187 to control the rotation speed of the spiral feeding device 140, so that the amount of cement entering the stirring device 130 is accurately controlled.
Similarly, the agitation level control device 188 includes an ultrasonic level meter 189 and an agitation controller provided in the agitation device 130. In this embodiment, the ultrasonic level meter 189 determines the flow rate of the mortar entering and exiting from the mixing tank by the upper and lower limits of the rated liquid level in the mixing device 130, transmits the data of the mortar flow rate to the upper computer 181, and controls the mortar amount by the ratio relationship and the optimal ratio relationship in the upper computer 181. The control method is that the upper computer 181 sends a control command to the stirring controller to control the stirring speed of the stirring device 130, and can also be connected with an external water adding pipeline to control the density of the mortar in a water adding mode.
In order to achieve a further precise control of the filling system 100, a data storage device can also be provided for data recording of the control data and of the control process.
In the present embodiment, the above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention. In the present embodiment, the above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A high-concentration full-tailings cemented filling system is used for filling an underground goaf and is characterized by comprising a filling subsystem, a pipeline subsystem and a control subsystem, wherein the filling subsystem is arranged on the surface of the ground of an area to be filled; the filling subsystem comprises a deep cone thickening device, a cement device and a stirring device, the pipeline subsystem comprises a horizontal pipeline and a vertical pipeline, the deep cone thickening device is connected with the stirring device through the horizontal pipeline, the cement device is respectively connected with the stirring device, the stirring device is communicated with a region to be filled through the vertical pipeline, and the inclination of the vertical pipeline 160 is less than or equal to 1 degree; the control subsystem comprises a sand slurry control device, a cement bin level control device, a stirring liquid level control device and a stirring device, wherein the sand level control device is connected with the deep cone thickening device; the deep cone thickening device is internally provided with tail mortar, and the cement device is internally provided with cement materials.
2. The high-concentration full-tailings cemented filling system according to claim 1, wherein a buffer plate is arranged between the deep-cone thickening device and the surface of the ground of the area to be filled; the buffer plate is a raft plate.
3. The high-concentration full-tailings cemented filling system according to claim 1, wherein the deep-cone thickening device is connected with an aggregate feeding system; the aggregate feeding system comprises a whole tailing feeding system of a mine plant and a dry tailing feeding system of a storage yard, and is respectively connected with the deep cone thickening device through a feeding pipeline.
4. The high-concentration full-tailing cemented filling system according to claim 1, characterized in that a micro-powder scale is arranged at the bottom end of the cement device, and a spiral feeding device is connected to the bottom end; the spiral feeding device is connected with the stirring device.
5. The high-consistency full-tailings cement fill system according to claim 1, wherein the vertical pipe 160 comprises an inner pipe and an outer pipe, and the distance between the outer wall of the inner pipe and the inner wall of the outer pipe is 50 mm.
6. The high consistency full tailings cemented filling system of claim 5 wherein the inner pipe bottom is provided with a slurry discharge valve and a chamber.
7. The high-consistency full-tailings cemented filling system according to claim 5, wherein the fill doubling line of the vertical pipe 160 is determined as follows:
N＝L/H；
wherein N is a filling multiple line, L is a total length of the vertical pipe 160, and H is a height difference between an inlet and an outlet of the vertical pipe 160;
the filling multiple line is less than or equal to 8.
8. The high-concentration full-tailings cemented filling system according to claim 1, wherein the mortar control device comprises a mortar densitometer and a flowmeter which are arranged on a horizontal pipeline, and further comprises an upper computer which is respectively connected with the mortar densitometer and the flowmeter; the device also comprises an electromagnetic valve which is arranged on the horizontal pipeline and connected with the upper computer.
9. The high-concentration full-tailings cemented filling system according to claim 4, wherein the cement bin control device comprises a radar level gauge, a spiral feeding controller and an upper computer which are arranged on the cement device, and the upper computer is respectively connected with the spiral feeding controller and the micro-powder scale.
10. The high-concentration full-tailings cemented filling system according to claim 1, wherein the stirring liquid level control device comprises an ultrasonic liquid level meter, a stirring controller and an upper computer which are arranged in the stirring device, and the upper computer is connected with the stirring controller and the ultrasonic liquid level meter respectively.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210149317.6A CN114474406A (en) | 2022-02-18 | 2022-02-18 | High-concentration full-tailing cemented filling system |
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| CN202210149317.6A CN114474406A (en) | 2022-02-18 | 2022-02-18 | High-concentration full-tailing cemented filling system |
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| CN114474406A true CN114474406A (en) | 2022-05-13 |
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| CN202210149317.6A Pending CN114474406A (en) | 2022-02-18 | 2022-02-18 | High-concentration full-tailing cemented filling system |
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