CN113503169A - Mining portable intelligent slip casting system that hangs - Google Patents
Mining portable intelligent slip casting system that hangs Download PDFInfo
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- CN113503169A CN113503169A CN202110743303.2A CN202110743303A CN113503169A CN 113503169 A CN113503169 A CN 113503169A CN 202110743303 A CN202110743303 A CN 202110743303A CN 113503169 A CN113503169 A CN 113503169A
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- 238000005065 mining Methods 0.000 title claims abstract description 28
- 238000007569 slipcasting Methods 0.000 title description 3
- 238000003756 stirring Methods 0.000 claims abstract description 114
- 239000000463 material Substances 0.000 claims abstract description 48
- 239000000725 suspension Substances 0.000 claims abstract description 42
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 39
- 230000007246 mechanism Effects 0.000 claims abstract description 35
- 239000002002 slurry Substances 0.000 claims abstract description 34
- 238000002156 mixing Methods 0.000 claims abstract description 19
- 239000004568 cement Substances 0.000 claims abstract description 11
- 238000002347 injection Methods 0.000 claims description 24
- 239000007924 injection Substances 0.000 claims description 24
- 238000005303 weighing Methods 0.000 claims description 19
- 229910000831 Steel Inorganic materials 0.000 claims description 14
- 239000010959 steel Substances 0.000 claims description 14
- 238000003860 storage Methods 0.000 claims description 11
- 241000537371 Fraxinus caroliniana Species 0.000 claims description 4
- 235000010891 Ptelea trifoliata Nutrition 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 4
- 239000011440 grout Substances 0.000 claims description 4
- 230000002787 reinforcement Effects 0.000 abstract description 10
- 239000000843 powder Substances 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 238000000926 separation method Methods 0.000 abstract description 3
- 239000008187 granular material Substances 0.000 abstract 1
- 238000007726 management method Methods 0.000 description 7
- 239000003245 coal Substances 0.000 description 6
- 230000008878 coupling Effects 0.000 description 6
- 238000010168 coupling process Methods 0.000 description 6
- 238000005859 coupling reaction Methods 0.000 description 6
- 230000008093 supporting effect Effects 0.000 description 6
- 238000010276 construction Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000007858 starting material Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000011068 loading method Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
- E21D11/105—Transport or application of concrete specially adapted for the lining of tunnels or galleries ; Backfilling the space between main building element and the surrounding rock, e.g. with concrete
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- Geochemistry & Mineralogy (AREA)
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- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
Abstract
The invention discloses a mining suspension movable type intelligent grouting system which comprises a horizontal bin pump, a suspension guide rail, a driving and braking device, a suspension movable wheel set, a movable bin, a quantitative feeding mechanism, a stirring mechanism, a grouting pump and a control device. The invention adopts a novel pneumatic conveying system for mining powdery or granular materials to remotely convey the powdery materials to a movable bin which can freely move along a guide rail through a conveying pipeline for material-gas separation; then automatically feeding the powder materials according to the required quantity of the powder materials through a material mixing and conveying device and a quantitative feeding mechanism; quantitative water supply is realized by the set water-cement ratio, and the water-cement ratio and the stirring quality of the slurry are stably controlled; the grouting pressure and the grouting amount of the grouting pump are detected in real time during grouting, the problem of judgment according to experience is solved, the grouting reinforcement effect is greatly improved, the grouting operation process is simplified, the labor intensity of workers is reduced, automatic control and fine management are realized, the operation cost is reduced, and the grouting reinforcement quality is effectively ensured.
Description
Technical Field
The invention relates to the technical field of coal mine roadway support, in particular to a mining suspension movable intelligent grouting system.
Background
In the coal mine tunnel supporting engineering, methods of anchor net supporting and grouting filling reinforcing are often adopted, along with the increase of coal mine mining depth, higher requirements are provided for supporting strength and supporting quality, and grouting reinforcing is an important link. The following problems often exist in the existing grouting reinforcement construction of coal mines: (1) the conventional powder material for coal mine grouting is transported by a bagged mine car, so that the transportation efficiency is low, and potential safety hazards exist during transportation of the inclined roadway mine car. The manual bag removal is used for feeding the stirrer, the labor intensity of an operator is high, dust generated during feeding and stirring is difficult to solve, and the health of the operator is influenced; (2) in the preparation process of grouting slurry, manual feeding and water injection are carried out, the influence of manual factors is large, the water-cement ratio is often not strictly controlled, the slurry is mainly stirred by experience, the water-cement ratio cannot be controlled in an optimal range, the initial setting time and the final setting time cannot be controlled after grouting, the initial strength and the later strength and the performance of materials are difficult to guarantee, the roadway supporting effect is directly influenced, and even potential safety hazards are caused; (3) grouting reinforcement is a hidden project, the standard control of grouting ending is not strict, the actual grouting amount and grouting pressure are only determined by manual observation or experience, the grouting effect is difficult to guarantee, and verification cannot be carried out afterwards; (4) the grouting reinforcement construction operation has high labor intensity and low efficiency; (5) and grouting reinforcement has no record, and when problems occur, the construction technology and management data cannot be inquired, so that the construction quality is difficult to judge.
Disclosure of Invention
In order to solve the defects in the prior art, the invention aims to provide a mining suspension mobile intelligent grouting system which has the advantages of automatic quantitative feeding, automatic water-cement proportioning, real-time monitoring of grouting flow and pressure, storage and uploading of technical and management data and improvement of grouting reinforcement quality.
The technical scheme adopted by the invention for solving the technical problems is as follows: a mining suspension mobile intelligent grouting system comprises a feeding unit, a quantitative feeding unit, a stirring unit, a grouting unit and a control unit;
the feeding unit comprises a horizontal bin pump, and the horizontal bin pump is connected with a pneumatic conveying system, so that the horizontal bin pump is connected with the quantitative feeding unit through the pneumatic conveying system;
the quantitative feeding unit comprises a movable bin and a weighing sensor arranged on the movable bin, and the weighing sensor is connected with the control unit, so that a weight signal acquired by the weighing sensor is transmitted to the control unit;
the stirring unit comprises a stirring mechanism and a water injection mechanism connected with the stirring mechanism, one end of the water injection mechanism is connected with the water storage mechanism, the other end of the water injection mechanism is communicated with the inside of the stirring mechanism, a water-ash quantitative proportioning system is arranged in the water injection mechanism, and the water-ash quantitative proportioning system is connected with the control unit;
the grouting unit comprises a grouting pump, a grouting speed sensor and a grouting pressure sensor, the grouting pump is connected with the grout outlet of the stirring unit, and the grouting speed sensor and the grouting pressure sensor are respectively connected with the control unit;
the control unit comprises a feeding control unit, a stirring and proportioning control unit and a grouting control unit, wherein the weighing sensor is connected with the feeding control unit, the water-cement quantitative proportioning system is connected with the stirring and proportioning control unit, and the grouting speed sensor and the grouting pressure sensor are respectively connected with the grouting control unit.
Optionally, the quantitative feeding unit further includes a hanging guide rail, and the moving bin is connected to the hanging guide rail through a hanging moving wheel set, so that the moving bin can move back and forth on the hanging guide rail through the hanging moving wheel set;
the weighing sensor is arranged between the suspension moving wheel set and the moving bin;
the suspension guide rail is hoisted at the bottom of the roadway top plate through the suspension rod assembly.
Optionally, a traction device is further arranged on the suspension guide rail, and the suspension moving wheel set is connected with the traction device, so that the moving bin moves or stops under the action of the traction device.
Optionally, a discharge port is formed in one end, far away from the horizontal bin pump, of the movable bin, and a material mixing and conveying device is arranged inside the movable bin, so that the material mixing is conveyed to the discharge port through the material mixing and conveying device and falls into the stirring unit through the discharge port.
Optionally, the inside of removing the feed bin is equipped with the pressure release chamber and defeated material chamber, pneumatic conveying system's discharge end is connected with the pressure release chamber that removes the feed bin, compounding conveyor locates defeated material intracavity.
Optionally, the stirring mechanism comprises a stirring barrel and a stirring shaft arranged inside the stirring barrel, the top of the stirring barrel is connected with an installation seat, and a material mixing feed port and a driving mechanism for driving the stirring shaft to rotate are fixedly installed on the installation seat;
the water injection unit is arranged on the side part of the stirring barrel.
Optionally, an anchor type stirring blade is arranged at the outer circle of the lower end of the stirring shaft, the anchor type stirring blade is positioned at the bottom of the stirring barrel, and gaps are reserved between the anchor type stirring blade and the bottom and the side surface of the stirring barrel;
and the middle part of the stirring shaft is provided with a turbine type stirring blade.
Optionally, the water injection unit comprises an electromagnetic valve, a steel pipe, a first quick coupling, a second quick coupling, a coupling assembly and a rubber hose;
the steel pipe is fixedly connected to the side portion of the stirring barrel through the first quick connector and the connector assembly, the electromagnetic valve is arranged in the steel pipe in a built-in mode, one end, far away from the stirring barrel, of the steel pipe is connected with the rubber hose through the second quick connector, and one end, far away from the second quick connector, of the rubber hose is connected with the water storage mechanism.
Optionally, a slurry suction groove communicated with the inside of the stirring barrel is formed in the outer side of the stirring barrel, and the bottom height of the slurry suction groove is lower than that of the stirring barrel.
Optionally, the cross-section of the slurry suction groove is trapezoidal, the inclined edges of two sides of the slurry suction groove are tangent to the outer circle of the barrel body of the stirring barrel, and a discharge hole for discharging slurry is formed in one side, far away from the stirring barrel, of the slurry suction groove.
By adopting the technical scheme, compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, a pneumatic remote conveying system is adopted to convey grouting powder raw materials into the movable bin and then convey the grouting powder raw materials to the stirring unit through the mixing conveying device, so that the defects of low conveying efficiency and potential safety hazard during inclined roadway mine car transportation of powder materials for coal mine grouting in the prior art due to the fact that bagged mine cars are used for transportation are overcome, and the defects of high labor intensity and large dust during loading and stirring due to manual bag removal for loading a stirrer are overcome;
2. the invention can automatically feed materials according to the demand of grouting powder raw materials, realize quantitative water injection according to the set water-cement ratio and stably control the water-cement ratio and the stirring quality of slurry; the grouting pressure and the grouting amount of a grouting pump are detected in real time during grouting, and grouting is automatically finished according to the set grouting finishing conditions, so that the problem of judgment according to experience is solved, and the grouting reinforcement effect is greatly improved;
3. according to the grouting reinforcement system, the control unit can be used for collecting, storing and uploading grouting technical parameters and management data, so that the grouting operation process is simplified, the labor intensity of workers is greatly reduced, automatic control and fine management are realized, the production efficiency is greatly improved, the operation cost is reduced, and the grouting reinforcement quality is effectively ensured.
Drawings
FIG. 1 is a schematic diagram of the system of the present invention;
FIG. 2 is a schematic structural view of a stirring unit of the present invention;
FIG. 3 is a schematic structural diagram of a water injection unit according to the present invention;
FIG. 4 is a front view of the control box of the present invention;
fig. 5 is an electrical control schematic of the present invention.
Detailed Description
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1, the invention discloses a suspension mobile intelligent grouting system for mines, which can realize remote pneumatic transmission of powder materials, free movement and stop of a mobile stock bin along a track, quantitative feeding, automatic proportioning of water and ash, real-time monitoring of grouting flow and pressure, and storage and uploading of technical and management data. This mining portable intelligent slip casting system that hangs includes: the device comprises a feeding unit, a quantitative feeding unit, a stirring unit, a grouting unit and a control unit.
Referring to fig. 1, in the suspension mobile type intelligent grouting system for mining according to this embodiment, the feeding unit includes a horizontal bin pump 1, and the horizontal bin pump 1 is provided with a pneumatic conveying system, so that the horizontal bin pump 1 can convey powdery materials put therein into the quantitative feeding unit through a conveying pipe 9 in a pneumatic conveying manner.
Referring to fig. 1, the quantitative feeding unit includes a suspension guide rail 2, a suspension rod assembly 3, a traction device 4, a connecting rod 5, a suspension moving wheel set 6, a weighing sensor 7, a moving bin 8, a mixing material conveying device 10, and a discharge port 11. Specifically, the suspension rail 2 is fixed at the bottom of the roadway roof through the suspension rod assembly 3, that is, the suspension rail 2 is fixedly connected by means of hoisting. Remove feed bin 8 and then remove wheelset 6 and be connected with hanging guide rail 2 through hanging, make remove feed bin 8 can remove about hanging guide rail 2, and weighing sensor 7 then connects and remove between wheelset 6 and the removal feed bin 8 hanging, remove feed bin 8 promptly and remove wheelset 6 through weighing sensor 7 and hanging and be connected, consequently, weighing sensor 7 can acquire the weight data who removes feed bin 8 always to with weight data transmission to the control unit.
In the present embodiment, the suspension moving wheel set 6 is connected to the traction device 4 through the connecting rod 5, and the traction device 4 performs a traction action and a braking action on the suspension moving wheel set 6 through the connecting rod 5, and in the present embodiment, the traction device 4 may be, for example, a cylinder assembly. In this implementation, the inside of removing feed bin 8 is divided into the pressure release chamber and is failed the material chamber, and the pressure release chamber is the following formula with defeated material chamber and distributes from top to bottom, and the end and the pressure release chamber of carrying material pipe 9 are connected, make the material from carrying material pipe 9 and being carried to the pressure release intracavity, and the material carries out gas-material separation and step-down in the pressure release intracavity, and the material after the separation step-down falls back to defeated material intracavity. Mixing material conveyor 10 then installs at defeated material intracavity, and the material is carried to the position of discharge gate 11 through mixing material conveyor 10 in defeated material intracavity, and final material falls in the stirring unit, and in this embodiment, mixing material conveyor 10 can adopt spiral feeding mechanism to carry the material to the mode of spiral pay-off, can play the effect of stirring to the material, and the material is after the stirring, can effectually prevent or reduce the powdery material segregation problem behind the long-range transport (transport distance is more than or equal to 1000 m).
Referring to fig. 1, the stirring unit of the present embodiment includes a stirring mechanism and a water injection mechanism 23.
Specifically, referring to fig. 1 and 2, the stirring mechanism of the present embodiment includes a stirring barrel 17, a mounting seat 37, a pneumatic motor 38, a stirring shaft 39, stirring teeth i 22, stirring teeth ii 21, a discharge port 19, a slurry suction groove 18, a feed port 15, and an ultrasonic slurry densimeter 16.
The upper end of the stirring barrel 17 is provided with a mounting seat 37, the mounting seat 37 is provided with a feed inlet 15 and an air motor 38, a motor shaft at the lower end of the air motor 38 is connected with a stirring shaft 39 through a U-shaped pin, and a shaft neck at the front end of the stirring shaft 39 is supported in a supporting ring arranged at the center of the bottom of the stirring barrel 17. Stirring gear II 21 is arranged at the excircle of the lower end of the stirring shaft 39, and the stirring gear II 21 adopts an anchor type stirring blade and is positioned at the bottom of the stirring barrel 17, and gaps are reserved between the stirring gear II 21 and the bottom and the side of the stirring barrel 17. The middle part of (mixing) shaft 39 is provided with stirring tooth I22, and stirring tooth I22 adopts turbine formula stirring vane.
A water injection mechanism 23 is arranged on the outer side surface of the stirring barrel 17. Referring to fig. 2, the water injection mechanism 23 includes a solenoid valve 30, a steel pipe 40, a first quick coupling 28, a second quick coupling 32, a coupling assembly 29, a flow meter 31, and a rubber hose. The steel pipe 40 is fixedly connected to the side portion of the stirring barrel 17 through the first quick connector 28 and the connector assembly 29, the electromagnetic valve 30 is arranged in the steel pipe 40 in a built-in mode, one end, away from the stirring barrel 17, of the steel pipe 40 is connected with the rubber hose through the second quick connector 32, one end, away from the second quick connector 32, of the rubber hose is connected with the water storage mechanism, and the flow meter 31 is also arranged in the steel pipe 40.
The outer side surface of the stirring barrel 17 is provided with a slurry suction groove 18 communicated with the inside of the stirring barrel, the section of the slurry suction groove 18 is trapezoidal, the oblique sides of the two sides of the slurry suction groove 18 are tangent to the outer circle of the barrel body of the stirring barrel 17, the bottom height of the slurry suction groove 18 is lower than that of the stirring barrel 17, it is ensured that a suction port of a suction head or a slurry suction pipe of a grouting unit is lower than that of the stirring barrel 17, and one side of the slurry suction groove 18 is provided with a discharge port 19 used for discharging slurry or cleaning the stirring barrel 17.
Referring to fig. 1, the grouting unit of the present embodiment includes a grouting pump 27. The suction head of the grouting pump 27 or the suction pipe of another grouting pump of other construction type is inserted along the suction chute 18 to the bottom of the suction chute 18. A grouting speed sensor 26 is arranged on the outer side of the cylinder body of the grouting pump 27, a grouting pressure sensor 25 is arranged at a grout outlet 24 of the grouting pump 27, the grouting speed sensor 26 collects the reciprocating times of the piston of the grouting pump 27 in unit time, and the grouting pressure sensor 25 detects and displays the grouting pressure of the grout outlet 24 of the grouting pump 27.
Referring to fig. 1 to 5, in the embodiment, the control unit includes a control box and a control system disposed in the control box, and the control system is integrated with a feeding control unit, a stirring and proportioning control unit, a grouting control unit, a data processing unit, a data storage unit, and a data sending unit.
Specifically, referring to fig. 4, the control box of the present embodiment includes a water injection assembly 12, a display 13, an explosion-proof chamber 33, a cable lead-in device 34, an intrinsic safety chamber 35, and an operation button set 36. In the above embodiment, the second quick connector 32 is connected to the water storage mechanism after passing through the control box.
The working process of the mining suspension mobile intelligent grouting system comprises the following steps:
s1, inputting the required grouting amount and the water-cement ratio, and starting the system;
s2, injecting water into the stirring barrel 17, and stopping after the water reaches the required water amount
S3, starting the quantitative feeding unit, feeding materials into the stirring barrel 17, stopping after the required material amount is reached, and starting the stirring mechanism to stir the slurry while feeding the materials;
wherein, the weight of the materials added into the mixing tank 17 is detected by a weighing sensor 7;
s4, in the slurry stirring process, the ultrasonic ore pulp densimeter 16 detects the slurry density, and sends out a qualified instruction to the control unit after the slurry density is qualified;
s5, starting a grouting unit, starting grouting, detecting and recording grouting amount and grouting pressure, and stopping grouting after the grouting amount or grouting pressure required by grouting is reached;
and S6, recording grouting technical parameters and management data, and transmitting the grouting technical parameters and the management data to a storage unit of the control unit.
In S3, when the amount of the discharged material from the moving hopper 8 is measured by the load cell 7 to a desired amount, the feeding control unit issues a command to close the valve of the mixing conveyor 10 to stop feeding.
At S2, water is supplied to the mixer drum 17 according to the set water-cement ratio, and when the required amount of water is reached by the flow meter 31, the mixing and proportioning control unit issues a command to automatically close the electromagnetic valve 30. Then the quantitative feeding unit and the stirring mechanism are started to stir the grouting slurry, the ultrasonic pulp densimeter 16 detects the density (concentration) of the slurry, and the stirring and proportioning control unit sends out a qualification indication after the slurry is uniformly stirred.
The grouting control unit can acquire and store the grouting amount and the grouting pressure of the grouting pump 27 through the grouting speed sensor 26 and the grouting pressure sensor 25, when the grouting pump 27 reaches the preset grouting pressure, the grouting control unit stops grouting after sending a grouting stop instruction, the piston reciprocating times of the grouting pump 27 are measured and recorded through the grouting speed sensor 26, the grouting amount is calculated through the data processing unit, and a warning is sent when the grouting amount is lower than the set grouting amount.
In the invention, data collected by each sensor is calculated and processed by the data processing unit, main parameters of the operation process of the grouting system are displayed on the display screen 13, and the data are transmitted to the data transmission and storage unit for storage and are transmitted to a superior level by the data transmission unit.
In this embodiment, the box of control box includes explosion-proof chamber 33 and ann chamber 35, and explosion-proof chamber 33 is located the lower part, and inside is equipped with ann's power and relay. The intrinsic safety cavity 35 is located on the upper portion, and an intrinsic safety controller, a display screen 13 and a mining intrinsic safety type wireless gateway are arranged inside the intrinsic safety cavity. The display 13 is an intrinsically safe display.
The display screen 13 is connected with the intrinsic safety controller through an RS485 interface and is used for displaying, setting various parameters and controlling the operation of the intelligent grouting system. The mining intrinsic safety type wireless gateway is connected with the intrinsic safety controller through an RS485 interface and used for transmitting various data of the operation of the intelligent grouting system to an underground wireless network for monitoring and inquiring.
The explosion-proof cavity 33 of the box body of the control box is provided with a power interface and a control interface, the power interface is used for introducing a power supply of the control box, the power supply is used for supplying power to an intrinsic safety power supply and a relay, the intrinsic safety power supply supplies power to an intrinsic safety controller, a display screen 13 and a mining intrinsic safety type wireless gateway, the control interface is used for transmitting a starting signal to a mining explosion-proof magnetic starter, and the mining explosion-proof magnetic starter is used for starting a feeding unit, a quantitative feeding unit, a stirring unit and a grouting unit.
As shown in fig. 5, the intrinsically safe cavity 35 of the box body of the control box is provided with a material weighing signal interface, a grouting pressure signal interface, a water injection flow signal interface, a slurry density signal interface, a grouting speed signal interface, a water injection signal interface, a pneumatic motor control signal interface, a discharging signal interface and a starting signal interface. The material weighing signal interface is used for introducing a weighing signal of the weighing sensor 7 to the intrinsic safety controller; the grouting pressure signal interface is used for introducing a pressure signal of the grouting pressure sensor 25 to the intrinsic safety controller; the water injection flow signal interface is used for introducing a water flow signal of the flowmeter 31 to the intrinsic safety controller; the slurry density signal interface is used for introducing a density signal of the ultrasonic ore pulp density sensor 16 to the intrinsic safety controller; the grouting speed interface is used for introducing a reciprocating frequency signal of a grouting pump piston of the grouting speed sensor 26 in unit time to the intrinsic safety controller; the water injection signal interface is used for leading out a water injection signal of the intrinsic safety controller to the electromagnetic valve 30 and opening or closing the water inlet steel pipe 40; the pneumatic motor control signal interface is used for leading out a pneumatic motor control signal of the intrinsic safety controller to the mine intrinsic safety type electromagnetic valve and is used for starting or stopping the pneumatic motor 38; the unloading signal interface is used for leading out an unloading signal of the intrinsic safety controller to the mine intrinsic safety type electromagnetic valve and opening or closing the unloading channel; the start signal interface is used for leading out a start signal of the intrinsic safety controller to a relay in the explosion-proof cavity 33.
The mining explosion-proof magnetic starter is powered by 660V and is used for receiving a starting signal of the relay and controlling the starting and stopping of the mining explosion-proof feeding motor.
The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by a person skilled in the art that the scope of the invention as referred to in the present application is not limited to the embodiments with a specific combination of the above-mentioned features, but also covers other embodiments with any combination of the above-mentioned features or their equivalents without departing from the inventive concept. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.
Other technical features than those described in the specification are known to those skilled in the art, and are not described herein in detail in order to highlight the innovative features of the present invention.
Claims (10)
1. A mining suspension mobile intelligent grouting system is characterized by comprising a feeding unit, a quantitative feeding unit, a stirring unit, a grouting unit and a control unit;
the feeding unit comprises a horizontal bin pump, and the horizontal bin pump is connected with a pneumatic conveying system, so that the horizontal bin pump is connected with the quantitative feeding unit through the pneumatic conveying system;
the quantitative feeding unit comprises a movable bin and a weighing sensor arranged on the movable bin, and the weighing sensor is connected with the control unit, so that a weight signal acquired by the weighing sensor is transmitted to the control unit;
the stirring unit comprises a stirring mechanism and a water injection mechanism connected with the stirring mechanism, one end of the water injection mechanism is connected with the water storage mechanism, the other end of the water injection mechanism is communicated with the inside of the stirring mechanism, a water-ash quantitative proportioning system is arranged in the water injection mechanism, and the water-ash quantitative proportioning system is connected with the control unit;
the grouting unit comprises a grouting pump, a grouting speed sensor and a grouting pressure sensor, the grouting pump is connected with the grout outlet of the stirring unit, and the grouting speed sensor and the grouting pressure sensor are respectively connected with the control unit;
the control unit comprises a feeding control unit, a stirring and proportioning control unit and a grouting control unit, wherein the weighing sensor is connected with the feeding control unit, the water-cement quantitative proportioning system is connected with the stirring and proportioning control unit, and the grouting speed sensor and the grouting pressure sensor are respectively connected with the grouting control unit.
2. The mining suspension mobile intelligent grouting system according to claim 1, wherein the quantitative feeding unit further comprises a suspension guide rail, the mobile bin is connected with the suspension guide rail through a suspension mobile wheel set, so that the mobile bin can move back and forth on the suspension guide rail through the suspension mobile wheel set;
the weighing sensor is arranged between the suspension moving wheel set and the moving bin;
the suspension guide rail is hoisted at the bottom of the roadway top plate through the suspension rod assembly.
3. The mining suspension mobile intelligent grouting system according to claim 2, wherein a traction device is further arranged on the suspension guide rail, and the suspension mobile wheel set is connected with the traction device, so that the mobile bin moves or stops under the action of the traction device.
4. The mining suspension mobile intelligent grouting system according to claim 3, wherein the mobile bin is provided with a discharge port at one end far away from the horizontal bin pump, and a mixing conveying device is arranged inside the mobile bin, so that the mixing is conveyed to a discharge port position through the mixing conveying device and falls into the stirring unit through the discharge port.
5. The mining suspension mobile intelligent grouting system according to claim 4, wherein a pressure relief cavity and a material conveying cavity are arranged inside the mobile bin, the discharge end of the pneumatic conveying system is connected with the pressure relief cavity of the mobile bin, and the material mixing and conveying device is arranged in the material conveying cavity.
6. The mining suspension mobile intelligent grouting system according to claim 5, wherein the stirring mechanism comprises a stirring barrel and a stirring shaft arranged inside the stirring barrel, the top of the stirring barrel is connected with a mounting seat, and a mixing material inlet and a driving mechanism for driving the stirring shaft to rotate are fixedly arranged on the mounting seat;
the water injection unit is arranged on the side part of the stirring barrel.
7. The mining suspension mobile intelligent grouting system according to claim 6, wherein an anchor type stirring blade is arranged at the outer circle of the lower end of the stirring shaft, the anchor type stirring blade is positioned at the bottom of the stirring barrel, and gaps are reserved between the anchor type stirring blade and the bottom and the side faces of the stirring barrel;
and the middle part of the stirring shaft is provided with a turbine type stirring blade.
8. The mining suspension mobile intelligent grouting system according to claim 7, wherein the water injection unit comprises a solenoid valve, a steel pipe, a first quick connector, a second quick connector, a connector assembly and a rubber hose;
the steel pipe is fixedly connected to the side portion of the stirring barrel through the first quick connector and the connector assembly, the electromagnetic valve is arranged in the steel pipe in a built-in mode, one end, far away from the stirring barrel, of the steel pipe is connected with the rubber hose through the second quick connector, and one end, far away from the second quick connector, of the rubber hose is connected with the water storage mechanism.
9. The mining suspension mobile intelligent grouting system according to claim 8, wherein a slurry suction groove communicated with the inside of the stirring barrel is formed in the outer side of the stirring barrel, and the bottom height of the slurry suction groove is lower than that of the stirring barrel.
10. The mining suspension mobile intelligent grouting system according to claim 9, wherein the section of the slurry suction groove is trapezoidal, the oblique sides of two sides of the slurry suction groove are tangent to the outer circle of the stirring barrel body of the stirring barrel, and a discharge hole for discharging slurry is formed in one side, far away from the stirring barrel, of the slurry suction groove.
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| CN113503169B CN113503169B (en) | 2024-03-12 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE687217A (en) * | 1965-09-27 | 1967-03-22 | ||
| CN107826771A (en) * | 2017-11-28 | 2018-03-23 | 淮南东华欧科矿山支护设备有限责任公司 | New type mining powdery or granular material air-transport system |
| CN209601425U (en) * | 2018-10-19 | 2019-11-08 | 天奇自动化工程股份有限公司 | Roof pressing type drives suspension conveying system |
| CN111236981A (en) * | 2020-03-30 | 2020-06-05 | 河南力行科创矿山技术开发有限公司 | Underground coal mine movable integrated automatic grouting system and using method |
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2021
- 2021-07-01 CN CN202110743303.2A patent/CN113503169B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE687217A (en) * | 1965-09-27 | 1967-03-22 | ||
| CN107826771A (en) * | 2017-11-28 | 2018-03-23 | 淮南东华欧科矿山支护设备有限责任公司 | New type mining powdery or granular material air-transport system |
| CN209601425U (en) * | 2018-10-19 | 2019-11-08 | 天奇自动化工程股份有限公司 | Roof pressing type drives suspension conveying system |
| CN111236981A (en) * | 2020-03-30 | 2020-06-05 | 河南力行科创矿山技术开发有限公司 | Underground coal mine movable integrated automatic grouting system and using method |
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