Construction process of artificial roof facility in downward drift filling mining method

Abstract

The invention relates to the technical field of artificial roof construction, in particular to an artificial roof facility construction process adopting a downward drift filling mining method, which comprises the following steps: step 1, removing loose rocks and other sundries at the top of a goaf, ensuring that the surface of a roof is flat and clean, performing accurate measurement according to design requirements, and determining the construction position and range; marking a boundary line of the building arch; secondly, a specific leveling device is adopted for leveling the bottom plate; thirdly, an artificial roof construction mode of a reinforced concrete key layer and common cemented filling is adopted, and after the quality of a filling body is stable and the strength reaches 5 MPa or above, a full-filling body construction mode is adopted; according to the device, through the arrangement of the leveling device, through leveling operation of the bottom plate, materials can be better compacted, gaps and bubbles are reduced, the compactness of the materials is improved, it is guaranteed that the surface of an artificial roof is smooth and flat, follow-up procedures are facilitated, and the overall appearance quality is also improved.

Description

Technical Field

[0001] The present invention relates to the field of constructing artificial false roofs, and particularly to a construction process for artificial false roof facilities in the downward drift filling mining method. Background Art

[0002] The artificial false roof construction process is an important technology used in coal mining to support and stabilize the top of the goaf. By constructing a strong artificial structure above the coal seam, it prevents the roof from collapsing, ensures the safety of the mine, and optimizes the coal mining operation.

[0003] In the construction of artificial false roofs, the floor is leveled before the construction of the artificial false roof to ensure that the floor is flat, the two bottom corners are straight, there is no accumulated water, and there are no lump ores larger than 50 mm. After cleaning the large-sized lump ores on the floor, depressions will form on the floor. The existence of the depressions will cause the floor to be uneven, resulting in the need to level and tamp the floor again. Summary of the Invention

[0004] The purpose of the present invention is to solve the disadvantages existing in the prior art, and to propose a construction process for artificial false roof facilities in the downward drift filling mining method.

[0005] The present invention provides a construction process for artificial false roof facilities in the downward drift filling mining method, including the following steps:

[0006] Step 1: Remove the loose rocks and other sundries on the top of the goaf, ensure that the roof surface is flat and clean, conduct precise measurements according to the design requirements, determine the construction position and scope, and mark the boundary line of the masonry arch;

[0007] Step 2: Level the floor using a specific leveling device;

[0008] Step 3: Adopt the construction method of an artificial false roof with a reinforced concrete key layer plus ordinary cemented filling. After the quality of the filling body is stable and the strength reaches more than 5 MPa, then switch to the full filling body construction method;

[0009] The upper part of the key layer is filled with the current full tailings cemented filling, and the strength of the filling body is not less than 1.5 MPa;

[0010] Step 4: Adopt the form of hanging the bottom reinforcement mesh with hanging bars;

[0011] Step 5: Embed steel;

[0012] Step 6: Concrete pouring.

[0013] Preferably, the leveling device in Step 2 includes:

[0014] A housing, and a moving base for driving the housing to move is arranged at the bottom of the housing;

[0015] Installation box, fixed inside the housing;

[0016] Detection and cleaning component, installed inside the installation box, used to detect the flatness of the bottom plate, and when detecting impurities that are difficult to level, perform separate separation and cleaning, and supplement and level the depressions caused after cleaning the impurities;

[0017] Compaction component, located inside the installation box, used to vibrate and compact the position after the detection and cleaning component has cleaned;

[0018] When the bottom plate needs to be leveled, the device as a whole is driven by the moving base to move into the goaf. The moving base is an existing moving vehicle base, which is prior art and will not be elaborated here. The moving base drives the housing and the installation box to move synchronously, so as to detect the bottom plate inside the goaf. The installation box drives the detection and cleaning component to move. During the movement, the detection and cleaning component detects the flatness of the bottom plate. If it identifies large-volume impurities that are difficult to level, the detection and cleaning component separates and cleans the large-volume impurities separately, which is beneficial to avoiding the interference of large-volume impurities on the leveling of the bottom plate and is also beneficial to avoiding the instability of the artificial false roof caused by the presence of impurities. After the detection and cleaning component has detected and cleaned the bottom plate, as the installation box moves, the compaction component compacts the position detected and cleaned by the detection and cleaning component, which is beneficial to enabling the bottom plate to better compact the material through the leveling operation, reducing voids and bubbles, increasing the density of the material, and ensuring that the surface of the artificial false roof is smooth and flat. This not only facilitates the subsequent processes but also improves the overall appearance quality.

[0019] Preferably, the detection and cleaning component includes:

[0020] Flatness judgment component, used to scan and detect the bottom plate to judge the flatness, and when it judges that the bottom plate is uneven, drive the installation box to reciprocate through the moving base for leveling;

[0021] Robotic arm, installed inside the installation groove provided in front of the housing, used to separately separate and clean the uneven position when the flatness judgment component judges that the bottom plate is uneven and difficult to level;

[0022] Storage box, installed on the top of the housing, used to store the impurities separately separated and cleaned by the robotic arm;

[0023] Filling component, installed inside the installation box, used to supplement and level the depression formed by the cleaning of the robotic arm;

[0024] The flatness judgment component can scan and detect the bottom plate, judge the flatness of the bottom plate. When it is judged that the bottom plate is uneven due to the accumulation of materials, it controls the moving base to drive the installation box to move back and forth. When the installation box moves back and forth, it can push the materials on the bottom plate flat through the compaction component, which is beneficial to leveling the unevenly accumulated materials. Then, the bottom plate is compacted through the compaction component;

[0025] When it is judged that there are large-volume impurities causing the bottom plate to be uneven, it controls the robotic arm to start. After the robotic arm starts, it clamps the large-volume impurities to clean the large-volume impurities, and places the cleaned impurities inside the storage box for storage, which is beneficial to separating and cleaning the large-volume impurities existing on the bottom plate. Then, it controls the filling component to fill the depression formed by cleaning the large-volume impurities on the bottom plate. Subsequently, the compaction component compacts the filled position, which is beneficial to leveling the bottom plate according to different conditions of the bottom plate, enabling the installation box to separately separate, clean and tamp the large-volume impurities on the bottom plate during one construction process, so that it is not necessary to tamp the bottom plate again after separating the large-volume impurities, which is beneficial to improving the leveling efficiency of the bottom plate.

[0026] Preferably, the flatness judgment component includes:

[0027] The first laser scanner is fixed inside the installation space opened at the bottom of the installation box;

[0028] The second laser scanner is fixed at the bottom of the installation box. The first laser scanner and the second laser scanner are respectively located in front of and behind the compaction component;

[0029] The rubber table is slidably installed inside the sliding groove on the installation box;

[0030] The pressure sensor is fixed on the side wall of the rubber table. There are multiple first springs between the pressure sensor and the side wall of the sliding groove;

[0031] The first laser scanner can detect the bottom plate before being compacted by the compaction component to detect the flatness of the bottom plate, identify the large-volume impurities existing on the bottom plate, and locate the identified large-volume impurities, facilitating subsequent separate cleaning by the robotic arm;

[0032] When encountering impurities with a large volume, if the volume of the impurities is too large and interferes with the movement of the installation box, at this time, the rubber platform on the installation box is blocked by the impurities, causing the rubber platform to be pushed and drive the pressure sensor to squeeze the first spring, so that the pressure sensor receives the reverse force of the first spring, causing the pressure sensor to be compressed. At this time, it is recognized that there are impurities with too large a volume on the bottom plate, and the moving base is no longer controlled to drive the housing and the installation box to move forcibly. Instead, the robotic arm is controlled to clean the impurities, which helps to avoid the impact damage of the device.

[0033] The second laser scanner can detect the bottom plate compacted by the compaction component, so as to detect the tamped bottom plate. When it is detected that the flatness of the bottom plate is qualified, the moving base is controlled to drive the housing and the installation box to continue to move forward for leveling. When it is detected that the flatness of the bottom plate is unqualified, the moving base is controlled to drive the housing and the installation box to move back for leveling again, which helps to ensure the tamping flatness of the bottom plate, facilitates the subsequent processes, and improves the overall appearance quality.

[0034] Preferably, the filling component includes:

[0035] A partition board, fixed inside the storage box, dividing the inside of the storage box into a filling material storage space and a recycled material storage space;

[0036] A fixed frame, fixed inside the blanking space opened inside the installation box;

[0037] A connecting sleeve, fixedly connected to the bottom of the fixed frame;

[0038] A discharge pipe, fixedly connected to the bottom of the connecting sleeve;

[0039] A connecting slideway, connecting the filling material storage space and the fixed frame;

[0040] A blanking control component, installed inside the discharge pipe, for controlling the filling and blanking;

[0041] The inside of the recycled material storage space is used to store the impurities separately cleaned by the robotic arm. The inside of the filling material storage space is used to store materials with qualified particle size. The materials inside the filling material storage space can enter the inside of the fixed frame along the connecting slideway, then reach the discharge pipe along the connecting sleeve, and finally be discharged from the discharge pipe. The blanking control component arranged inside the discharge pipe can control the blanking speed of the materials from the discharge pipe, so as to control the amount of materials discharged from the discharge pipe, fill the sunken positions on the bottom plate, which helps to avoid the situation that the height of the sunken positions on the bottom plate is lower than the adjacent positions during leveling, which helps to quickly level the sunken positions, and which helps to improve the leveling efficiency of the bottom plate.

[0042] Preferably, the blanking control component includes:

[0043] A sliding box body, slidably installed inside the fixed frame;

[0044] A second motor, fixed inside the sliding box body, and a connecting shaft is fixed after the output shaft of the second motor penetrates the sliding box body;

[0045] A spiral guide vane, fixed to the bottom of the connecting shaft, and the spiral guide vane is located inside the discharge pipe;

[0046] After the second motor is started, it can drive the connected connecting shaft to rotate through the output shaft. After the connecting shaft rotates, it drives the spiral guide vane to rotate. After the spiral guide vane rotates, it drives the materials inside the discharge pipe to be discharged, so as to control the blanking speed by controlling the rotation speed of the spiral guide vane.

[0047] Preferably, the blanking control component further includes:

[0048] A threaded sleeve, fixed on the side wall of the discharge pipe;

[0049] A first lead screw, rotatably installed inside the blanking space, and threadedly connected to the threaded sleeve;

[0050] A third motor, fixed on the side wall of the installation box, drives the first lead screw to rotate through the output shaft;

[0051] After the third motor is started, it drives the connected first lead screw to rotate through the output shaft. After the first lead screw rotates, it drives the threaded sleeve connected thereto to move. After the threaded sleeve moves, it drives the discharge pipe connected thereto to move. When the discharge pipe moves, it can adjust the blanking position, which is beneficial to adjust the blanking position according to the concave position scanned by the first laser scanner and the concave position formed after the manipulator cleans the impurities, which is beneficial to accurately fill the concave position, and which is beneficial to improve the efficiency of leveling the filled position;

[0052] The connecting sleeve is made of a flexible material and can be deformed, so that when the discharge pipe moves, the connecting sleeve maintains the connection between the fixed frame and the discharge pipe, so as to maintain the conveying of materials.

[0053] Preferably, the blanking control component further includes:

[0054] A baffle plate, slidably installed on the inner wall of the discharge pipe;

[0055] A lifting block, fixed on the side wall of the baffle plate, and slidably installed inside the chute on the inner wall of the discharge pipe;

[0056] A second spring, fixed between the bottom of the lifting block and the bottom of the chute;

[0057] The baffle can block the bottom of the spiral guide vane, so that when the spiral guide vane does not rotate, the feeding can be stopped by the block of the baffle, which is beneficial to avoid the occurrence of protrusions caused by the falling of materials at positions where no replenishment is required. When the spiral guide vane rotates, the rotation of the spiral guide vane pushes the baffle to move downward until the baffle moves to the bottom end of the spiral guide vane and then is reset by the second spring, so that as the spiral guide vane rotates, the baffle moves downward repeatedly, and when the baffle moves downward to the bottom end of the spiral guide vane, the block of the baffle on the feeding of the spiral guide vane is lost, so that the spiral guide vane can intermittently feed with the rotation, thus realizing the function of driving feeding when the spiral guide vane rotates and stopping feeding when it stops rotating.

[0058] Preferably, the feeding control assembly further includes:

[0059] A filter plate, fixed inside the filler storage space;

[0060] A moving frame, slidably mounted on the top of the filter plate by a driving assembly;

[0061] Two crushing platforms, symmetrically installed inside the moving frame, and a plurality of extrusion protrusions are fixedly arranged at intervals on the opposite sides of the two crushing platforms;

[0062] Two second cylinders, respectively fixed between the two crushing platforms and the inner wall of the moving frame;

[0063] The manipulator places the separately cleaned impurities between the two crushing platforms, and then starts the two second cylinders. After the two second cylinders are started, the telescopic rods drive the two crushing platforms to reciprocally impact the impurities. For the loose and crushable impurities, under the impact of the crushing platforms, the impurities are crushed and then enter the inside of the filler storage space along the filter plate, so that the crushed impurities can be used as filling materials, which is beneficial to the reuse of impurities, reduces the amount of impurities that need to be transported, and is beneficial to improving the construction efficiency. For the impurities that cannot be crushed, after the impact of the crushing platforms, the particle size of the impurity particles that still do not fall through the filter plate does not meet the requirements. At this time, start the driving assembly, and the driving assembly drives the moving frame to move. The moving frame drives the crushing platforms to move synchronously, so that the impurities between the crushing platforms move with the movement to the edge position of the filter plate, and then enter the recycled material storage space to be collected and wait for unified treatment after the construction is completed;

[0064] The filter plate can be selected according to the particle size of the filler to be used, so that the particle size of the materials that can pass through the filter plate meets the requirements and can be used as supplementary materials.

[0065] Preferably, the compaction assembly includes:

[0066] The lifting box is vertically and slidably installed inside the lifting space inside the installation box;

[0067] The first cylinder is fixed inside the lifting space and is used to drive the vertical movement of the lifting box;

[0068] The vibration motor is fixed inside the lifting box;

[0069] The vibrating plate is vertically and slidably installed at the bottom of the lifting box, and the vibration motor is used to drive the vibrating plate to vibrate;

[0070] After the first cylinder is started, it drives the lifting box to move vertically. When the lifting box moves vertically, it drives the vibrating plate to move downward. The distance between the bottom of the vibrating plate and the bottom plate is controlled by the first cylinder, so that by controlling the height at which the vibrating plate fits the height to be leveled, the position of the material piled up on the bottom plate is pushed and leveled when the vibrating plate passes through;

[0071] After the first cylinder drives the lifting box and the vibrating plate to move upward by a certain distance, the vibration motor is started. After the vibration motor is started, it drives the vibrating plate to perform vertical vibration ramming, so as to compact the leveled bottom plate.

[0072] Compared with the prior art, the present invention has the following beneficial effects:

[0073] 1. Through the setting of the leveling device in the present invention, the bottom plate can be better compacted through the leveling operation, reducing voids and bubbles, increasing the density of the material, and ensuring that the surface of the artificial false roof is smooth and flat, which not only facilitates the subsequent processes but also improves the overall appearance quality.

[0074] 2. Through the setting of the filling component in the present invention, the sunken positions on the bottom plate are filled, which is beneficial to avoiding the situation where the height of the sunken positions on the bottom plate is lower than that of the adjacent positions during leveling, thus facilitating the rapid leveling of the sunken positions and improving the leveling efficiency of the bottom plate.

[0075] 3. Through the setting of the crushing table in the present invention, the crushed impurities can be used as filling materials, which is beneficial to the reuse of the impurities, reducing the amount of impurities to be transported and improving the construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0076] Figure 1 It is a schematic process flow diagram of the present invention.

[0077] Figure 2 It is a schematic structural diagram of the leveling device of the present invention.

[0078] Figure 3 It is a schematic structural diagram of the leveling device after sectioning of the present invention.

[0079] Figure 4 The enlarged structural schematic diagram of part A in Figure 3 the present invention.

[0080] Figure 5 The enlarged structural schematic diagram of part B in Figure 3 the present invention.

[0081] Figure 6 The enlarged structural schematic diagram of part C in Figure 3 the present invention.

[0082] Figure 7 The structural schematic diagram of the housing of the present invention after sectioning.

[0083] Figure 8 The enlarged structural schematic diagram of part D in Figure 7 the present invention.

[0084] Figure 9 The enlarged structural schematic diagram of part E in Figure 8 the present invention.

[0085] Figure 10 The structural schematic diagram of the storage box of the present invention after sectioning.

[0086] In the figure: 1. housing; 101. moving base; 2. installation box; 3. first laser scanner; 301. installation space; 302. second laser scanner; 4. rubber table; 401. pressure sensor; 402. sliding groove; 403. first spring; 5. robotic arm; 501. installation groove; 6. vibration plate; 601. lifting box; 602. vibration motor; 603. first cylinder; 604. lifting space; 7. storage box; 701. connecting slideway; 8. discharge pipe; 801. connecting sleeve; 802. fixed frame; 803. blanking space; 9. spiral guide vane; 901. connecting shaft; 902. sliding box body; 903. second motor; 10. threaded sleeve; 1001. first lead screw; 1002. third motor; 11. crushing table; 1101. moving frame; 1102. extrusion protrusion; 1103. second cylinder; 1104. partition board; 1105. moving plate; 1106. second lead screw; 1107. fourth motor; 12. baffle; 1201. lifting block; 1202. sliding groove; 1203. second spring; 13. filter plate. Detailed implementation manners

[0087] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and other obvious variations can be conceived by those skilled in the art.

[0088] Such as Figure 1A construction technology for an artificial false roof facility in a downward drift filling mining method is as follows:

[0089] Step 1: Remove the loose rocks and other sundries on the top of the goaf, ensure that the roof surface is flat and clean, conduct precise measurements according to the design requirements, determine the construction position and scope, and mark the boundary line of the masonry arch;

[0090] Step 2: Level the floor with a specific leveling device;

[0091] Step 3: Adopt the construction method of an artificial false roof with a reinforced concrete key layer plus ordinary cemented filling. After the filling body has stable quality and its strength reaches above 5 MPa, then switch to the full filling body construction method;

[0092] The upper part of the key layer adopts the current full tailings cemented filling, and the strength of the filling body is not less than 1.5 MPa;

[0093] Step 4: Adopt the form of hanging the bottom reinforcement mesh with hanging bars;

[0094] Step 5: Embed steel;

[0095] Step 6: Pour concrete.

[0096] As an optional embodiment, the leveling device in Step 2 includes:

[0097] A housing 1, and a moving base 101 for driving its movement is arranged at the bottom of the housing 1;

[0098] An installation box 2, which is fixed inside the housing 1;

[0099] A detection and cleaning component, which is installed inside the installation box 2, is used to detect the flatness of the floor, and when detecting impurities that are difficult to level, separate and clean them separately, and supplement and level the depression caused after cleaning the impurities;

[0100] A compaction component, which is located inside the installation box 2, is used to vibrate and compact the position after being cleaned by the detection and cleaning component;

[0101] During the construction of the artificial false roof, the floor is leveled before the construction of the artificial false roof to ensure that the floor is flat, the two bottom corners are straight, there is no accumulated water, and there is no lump ore larger than 50 mm. After cleaning the large lump ore on the floor, a depression will be formed on the floor. The existence of the depression will cause the floor to be uneven, resulting in the need to level and tamp the floor again;

[0102] This embodiment of the present invention can solve the above problems. The specific implementation is as follows. When the bottom plate needs to be leveled, the device as a whole is driven by the moving base 101 to move into the goaf. The moving base 101 is an existing moving vehicle base, which is prior art and will not be elaborated here. The moving base 101 drives the housing 1 and the installation box 2 to move synchronously, thereby detecting the bottom plate inside the goaf. The installation box 2 drives the detection and cleaning assembly to move. During the movement, the detection and cleaning assembly detects the flatness of the bottom plate. If it identifies large-volume impurities that are difficult to level, the detection and cleaning assembly separates and cleans the large-volume impurities separately, which is beneficial to avoiding the interference of large-volume impurities with the leveling of the bottom plate and also beneficial to avoiding the instability of the artificial false roof caused by the presence of impurities. After the detection and cleaning assembly finishes detecting and cleaning the bottom plate, as the installation box 2 moves, the compaction assembly compacts the position detected and cleaned by the detection and cleaning assembly, which is beneficial to enabling the bottom plate to better compact the material through the leveling operation, reducing voids and bubbles, increasing the density of the material, and ensuring that the surface of the artificial false roof is smooth and flat. This not only facilitates the subsequent processes but also improves the overall appearance quality.

[0103] As an alternative embodiment, the detection and cleaning assembly includes:

[0104] A flatness judgment component for scanning and detecting the bottom plate to judge the flatness, and driving the installation box 2 to reciprocate for leveling by the moving base 101 when it judges that the bottom plate is uneven;

[0105] A robotic arm 5 installed inside the installation groove 501 provided in front of the housing 1 for separately separating and cleaning the uneven positions when the flatness judgment component judges that the bottom plate is uneven and difficult to level;

[0106] A storage box 7 installed on the top of the housing 1 for storing the impurities separately separated and cleaned by the robotic arm 5;

[0107] A filling component installed inside the installation box 2 for supplementing and leveling the depression formed by the cleaning of the robotic arm 5;

[0108] The flatness judgment component can scan and detect the bottom plate, judge the flatness of the bottom plate. When it judges that the bottom plate is uneven due to the accumulation of materials, it controls the moving base 101 to drive the installation box 2 to reciprocate. When the installation box 2 reciprocates, it can push the materials on the bottom plate flat through the compaction component, which is beneficial to leveling the unevenly accumulated materials, and then compacting the bottom plate through the compaction component;

[0109] When it is determined that there are large-volume impurities causing the bottom plate to be uneven, the robotic arm 5 is controlled to start. After the robotic arm 5 starts, it clamps the large-volume impurities to clean the large-volume impurities, and places the cleaned impurities inside the storage box 7 for storage. This is beneficial for separating and cleaning the large-volume impurities existing on the bottom plate. Subsequently, the filling component is controlled to fill the depression formed by cleaning the large-volume impurities on the bottom plate with filling material, and then the compacting component compacts the filled position. This is beneficial for leveling the bottom plate according to different conditions of the bottom plate, enabling the installation box 2 to separately separate, clean, and tamp the large-volume impurities on the bottom plate during one construction process, eliminating the need to tamp the bottom plate again after separating the large-volume impurities, and being beneficial for improving the leveling efficiency of the bottom plate.

[0110] As an alternative embodiment, the leveling judgment component includes:

[0111] The first laser scanner 3, fixed inside the installation space 301 opened at the bottom of the installation box 2;

[0112] The second laser scanner 302, fixed at the bottom of the installation box 2, and the first laser scanner 3 and the second laser scanner 302 are respectively located in front of and behind the compacting component;

[0113] The rubber table 4, slidably installed inside the sliding groove 402 on the installation box 2;

[0114] The pressure sensor 401, fixed on the side wall of the rubber table 4, and there are multiple first springs 403 between the pressure sensor 401 and the side wall of the sliding groove 402;

[0115] The first laser scanner 3 can detect the bottom plate before being compacted by the compacting component to detect the flatness of the bottom plate, identify the large-volume impurities existing on the bottom plate, and locate the identified large-volume impurities, facilitating subsequent separate cleaning by the robotic arm 5;

[0116] When encountering large-volume impurities, if the volume of the impurities is too large and interferes with the movement of the installation box 2, at this time, the rubber table 4 on the installation box 2 is blocked by the impurities, causing the rubber table 4 to be pushed and drive the pressure sensor 401 to squeeze the first spring 403. As a result, the pressure sensor 401 receives the reverse force of the first spring 403, causing the pressure sensor 401 to be pressed. At this time, it is recognized that there are impurities with too large a volume on the bottom plate, and the movement base 101 is no longer controlled to drive the housing 1 and the installation box 2 to move forcefully. Instead, the robotic arm 5 is controlled to clean the impurities, which is beneficial for avoiding the impact damage of the device;

[0117] The second laser scanner 302 can detect the bottom plate after being compacted by the compaction component, so as to detect the tamped bottom plate. When it is detected that the flatness of the bottom plate is qualified, the mobile base 101 is controlled to drive the housing 1 and the installation box 2 to continue moving forward for leveling. When it is detected that the flatness of the bottom plate is unqualified, the mobile base 101 is controlled to drive the housing 1 and the installation box 2 to move back for leveling again, which is beneficial to ensuring the tamping flatness of the bottom plate, facilitating the subsequent processes, and improving the overall appearance quality.

[0118] It should be noted that the first laser scanner 3 and the second laser scanner 302 can adopt three-dimensional laser scanners, which can complete the three-dimensional modeling of large areas of terrain in a short time, accurately capture surface features, including obstacles such as stones, and do not need to contact the object to be measured, reducing the impact on the on-site environment. The three-dimensional laser scanner is a mature existing technology and will not be elaborated here.

[0119] As an optional embodiment, the filling component includes:

[0120] The partition plate 1104 is fixed inside the storage box 7, dividing the interior of the storage box 7 into a filling material storage space and a recycled material storage space;

[0121] The fixed frame 802 is fixed inside the blanking space 803 opened inside the installation box 2;

[0122] The connecting sleeve 801 is fixedly connected to the bottom of the fixed frame 802;

[0123] The discharge pipe 8 is fixedly connected to the bottom of the connecting sleeve 801;

[0124] The connecting slideway 701 communicates the filling material storage space with the fixed frame 802;

[0125] The blanking control component is installed inside the discharge pipe 8 and is used to control the filling and blanking;

[0126] The interior of the recycled material storage space is used to store the impurities separately cleaned by the robotic arm 5. The interior of the filling material storage space is used to store materials with qualified particle size. The materials inside the filling material storage space can enter the interior of the fixed frame 802 along the connecting slideway 701, then reach the discharge pipe 8 along the connecting sleeve 801, and finally be discharged from the discharge pipe 8. The blanking control component arranged inside the discharge pipe 8 can control the speed of the material being discharged from the discharge pipe 8, thereby controlling the amount of the material discharged from the discharge pipe 8, filling the sunken positions on the bottom plate, which is beneficial to avoiding the situation where the height of the sunken positions on the bottom plate is lower than the adjacent positions during leveling, facilitating the rapid leveling of the sunken positions, and improving the leveling efficiency of the bottom plate.

[0127] As an optional embodiment, the blanking control component includes:

[0128] A sliding box body 902 is slidably installed inside a fixed frame 802;

[0129] A second motor 903 is fixed inside the sliding box body 902. The output shaft of the second motor 903 penetrates through the sliding box body 902 and a connecting shaft 901 is fixed thereto;

[0130] A spiral guide vane 9 is fixed to the bottom of the connecting shaft 901, and the spiral guide vane 9 is located inside the discharge pipe 8;

[0131] After the second motor 903 is started, it can drive the connected connecting shaft 901 to rotate through the output shaft. After the connecting shaft 901 rotates, it drives the spiral guide vane 9 to rotate. After the spiral guide vane 9 rotates, it drives the materials inside the discharge pipe 8 to discharge, so as to control the discharging speed by controlling the rotation speed of the spiral guide vane 9.

[0132] As an alternative embodiment, the blanking control assembly further includes:

[0133] A threaded sleeve 10 is fixed to the side wall of the discharge pipe 8;

[0134] A first lead screw 1001 is rotatably installed inside the blanking space 803 and is threadedly connected to the threaded sleeve 10;

[0135] A third motor 1002 is fixed to the side wall of the installation box 2 and drives the first lead screw 1001 to rotate through the output shaft;

[0136] After the third motor 1002 is started, it drives the connected first lead screw 1001 to rotate through the output shaft. After the first lead screw 1001 rotates, it drives the threaded sleeve 10 connected thereto to move. After the threaded sleeve 10 moves, it drives the connected discharge pipe 8 to move. When the discharge pipe 8 moves, it can adjust the blanking position, so as to facilitate adjusting the blanking position according to the concave position scanned by the first laser scanner 3 and the concave position formed after the robot arm 5 cleans the impurities, which is beneficial to accurately filling the concave position and improving the efficiency of leveling the filled position;

[0137] The connecting sleeve 801 is made of a flexible material and can be deformed, so that when the discharge pipe 8 moves, the connecting sleeve 801 maintains the connection between the fixed frame 802 and the discharge pipe 8, thereby maintaining the conveying of the materials.

[0138] As an alternative embodiment, the blanking control assembly further includes:

[0139] A baffle plate 12 is slidably installed on the inner wall of the discharge pipe 8;

[0140] The lifting block 1201 is fixed to the side wall of the baffle 12 and is slidably installed inside the chute 1202 on the inner wall of the discharge pipe 8;

[0141] The second spring 1203 is fixed between the bottom of the lifting block 1201 and the bottom of the chute 1202;

[0142] The baffle 12 can block the bottommost part of the spiral guide vane 9, so that when the spiral guide vane 9 does not rotate, the feeding can be stopped by the blocking of the baffle 12, which is beneficial to avoid the occurrence of protrusions caused by the falling of materials at positions where no replenishment is required. When the spiral guide vane 9 rotates, the rotation of the spiral guide vane 9 pushes the baffle 12 downward until the baffle 12 moves to the bottom end of the spiral guide vane 9 and then the second spring 1203 pushes the baffle 12 to reset. As the spiral guide vane 9 rotates, the baffle 12 repeatedly moves downward, so that when the baffle 12 moves downward to the bottom end of the spiral guide vane 9, it loses the blocking of the feeding of the spiral guide vane 9, so that the spiral guide vane 9 can intermittently feed as it rotates, thus realizing the function of driving the feeding when the spiral guide vane 9 rotates and stopping the feeding when it stops rotating.

[0143] As an alternative embodiment, the feeding control assembly further includes:

[0144] The filter plate 13 is fixed inside the filler storage space;

[0145] The moving frame 1101 is driven by a driving component to be slidably installed on the top of the filter plate 13;

[0146] Two crushing platforms 11 are symmetrically installed inside the moving frame 1101, and a plurality of extrusion protrusions 1102 are fixedly arranged at intervals on the opposite sides of the two crushing platforms 11;

[0147] Two second cylinders 1103 are respectively fixed between the two crushing platforms 11 and the inner wall of the moving frame 1101;

[0148] The robotic arm 5 places the separately cleaned impurities between the two crushing platforms 11. Subsequently, two second cylinders 1103 are activated. After the two second cylinders 1103 are activated, the telescopic rods drive the two crushing platforms 11 to reciprocally impact the impurities. For the loose and crushable impurities, under the impact of the crushing platforms 11, the impurities are crushed and then enter the interior of the filler storage space along the filter plate 13, enabling the crushed impurities to be used as filling materials, which is conducive to the reuse of impurities, reduces the amount of impurities to be transported, and is beneficial to improving the construction efficiency. For the impurities that cannot be crushed, after being impacted by the crushing platforms 11, the particle size of the impurity particles that still have not fallen through the filter plate 13 does not meet the requirements. At this time, the driving component is activated, and the driving component drives the moving frame 1101 to move. The moving frame 1101 drives the crushing platform 11 to move synchronously, causing the impurities between the crushing platforms 11 to move with the movement to the edge position of the filter plate 13 and then enter the recycled material storage space to be collected and wait for unified treatment after the construction is completed;

[0149] The filter plate 13 can be selected according to the particle size of the filler material to be used, so that the particle size of the material that can pass through the filter plate 13 meets the requirements and can be used as a supplementary material.

[0150] As an alternative embodiment, the driving component includes:

[0151] Two moving plates 1105, fixed to the side walls of the moving frame 1101;

[0152] The second lead screw 1106 is rotatably installed inside the filler storage space. The second lead screw 1106 is threadedly connected to one of the moving plates 1105, and a straight rod is slidably inserted in the middle of the other moving plate 1105. The straight rod is fixed inside the filler storage space;

[0153] The fourth motor 1107 is fixed to the side wall of the storage box 7. The fourth motor 1107 drives the second lead screw 1106 to rotate through the output shaft;

[0154] After the fourth motor 1107 is activated, the output shaft drives the connected second lead screw 1106 to rotate. After the second lead screw 1106 rotates, it drives the moving plate 1105 connected to it to move, thereby driving the moving frame 1101 to move through the moving plate 1105, realizing the driving of the moving frame 1101.

[0155] As an alternative embodiment, the compaction component includes:

[0156] The lifting box 601 is vertically slidably installed inside the lifting space 604 inside the installation box 2;

[0157] The first cylinder 603 is fixed inside the lifting space 604 and is used to drive the lifting box 601 to move vertically;

[0158] The vibration motor 602 is fixed inside the lifting box 601;

[0159] The vibrating plate 6 is vertically slidably installed at the bottom of the lifting box 601, and the vibration motor 602 is used to drive the vibrating plate 6 to vibrate;

[0160] After the first cylinder 603 is activated, it drives the lifting box 601 to move vertically. When the lifting box 601 moves vertically, it drives the vibrating plate 6 to move downward. The distance between the bottom of the vibrating plate 6 and the bottom plate is controlled by the first cylinder 603, so that by controlling the height at which the vibrating plate 6 fits the height to be leveled, the position of the material piled up on the bottom plate can be pushed and leveled when the vibrating plate 6 passes through;

[0161] After the first cylinder 603 drives the lifting box 601 and the vibrating plate 6 to move upward by a certain distance, the vibration motor 602 is activated. After the vibration motor 602 is activated, it drives the vibrating plate 6 to perform vertical vibration ramming, so as to ram the leveled bottom plate.

[0162] The working principle of the present invention: When the bottom plate needs to be leveled, the device as a whole is driven by the moving base 101 to move into the goaf. The moving base 101 is an existing moving vehicle base, which is prior art and will not be elaborated here. The moving base 101 drives the housing 1 and the installation box 2 to move synchronously, so as to detect the bottom plate inside the goaf. The installation box 2 drives the detection and cleaning component to move. During the movement, the detection and cleaning component detects the flatness of the bottom plate. If it is identified that there are large-volume impurities that are difficult to level, the detection and cleaning component separates and cleans the large-volume impurities separately, which is beneficial to avoiding the interference of large-volume impurities on the leveling of the bottom plate, and is also beneficial to avoiding the instability of the artificial false roof caused by the presence of impurities. After the detection and cleaning component finishes detecting and cleaning the bottom plate, as the installation box 2 moves, the compaction component rams the position detected and cleaned by the detection and cleaning component, which is beneficial to enabling the bottom plate to better compact the material through the leveling operation, reducing voids and bubbles, increasing the density of the material, and ensuring that the surface of the artificial false roof is smooth and flat, which is not only beneficial to the subsequent processes, but also improves the overall appearance quality.

[0163] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A process for constructing artificial false roof facilities in a downward approach filling mining method, characterized in that: The following steps are involved: Step 1: Remove loose rocks and other debris from the top of the goaf to ensure that the roof surface is flat and clean. Make precise measurements according to design requirements to determine the construction location and scope, and mark the boundary line of the masonry. Step 2: Use a specific leveling device to level the bottom plate; Step 3: Use the artificial false roof construction method of reinforced concrete key layer plus ordinary cement filling. After the filling body quality is stable and the strength reaches more than 5MPa, switch to the full filling body construction method; The upper part of the key layer is filled with current full tailings cementation, and the filling strength is not less than 1.5MPa; Step 4: Use hanging bars to hang the bottom reinforcement mesh; Step 5: Pre-embed steel; Step 6: Concrete pouring.

2. The process for constructing artificial false roof facilities in the downward approach filling mining method according to claim 1 is characterized in that: The leveling device in step 2 includes: A housing (1), wherein a movable base (101) is provided at the bottom of the housing (1) for driving the housing (1) to move; An installation box (2) fixed inside the housing (1); A detection and cleaning component is installed inside the installation box (2) and is used to detect the flatness of the bottom plate, and to separate and clean the bottom plate when impurities that are difficult to level are detected, and to supplement and level the depressions caused by cleaning the impurities; The compaction component is placed inside the installation box (2) and is used to vibrate and compact the position cleaned by the detection and cleaning component.

3. The process for constructing artificial false roof facilities in the downward approach filling mining method according to claim 2 is characterized in that: The detection and cleaning component includes: A flatness judgment component is used to scan and detect the bottom plate to judge the flatness, and when it is judged that the bottom plate is not flat, the installation box (2) is driven to move back and forth by the movable base (101) to perform leveling; A mechanical arm (5) is installed inside a mounting groove (501) provided in front of the housing (1) and is used to separate and clean the uneven position when the flatness judgment component judges that the bottom plate is uneven and difficult to level; A storage box (7), installed on the top of the housing (1), for storing impurities separated and cleaned by the robot arm (5); A filling component is installed inside the installation box (2) and is used to supplement and level the depression formed by cleaning of the mechanical arm (5).

4. The process for constructing artificial false roof facilities in the downward approach filling mining method according to claim 3 is characterized in that: The leveling judgment component comprises: A first laser scanner (3) is fixed inside an installation space (301) opened at the bottom of the installation box (2); A second laser scanner (302) is fixed to the bottom of the installation box (2), and the first laser scanner (3) and the second laser scanner (302) are respectively located in front and behind the compacting assembly; A rubber platform (4) is slidably mounted inside a sliding groove (402) on the mounting box (2); The pressure sensor (401) is fixed on the side wall of the rubber platform (4), and a plurality of first springs (403) are arranged between the pressure sensor (401) and the side wall of the sliding groove (402).

5. The process for constructing artificial false roof facilities in the downward approach filling mining method according to claim 3 is characterized in that: The filling assembly comprises: A partition plate (1104) is fixed inside the storage box (7) to divide the inside of the storage box (7) into a filling material storage space and a recycling material storage space; A fixing frame (802) fixed inside a material unloading space (803) opened inside the installation box (2); A connecting sleeve (801) fixedly connected to the bottom of the fixing frame (802); A discharge pipe (8), fixedly connected to the bottom of the connecting sleeve (801); A connecting slideway (701) connects the filling material storage space and the fixing frame (802); A material discharge control component is installed inside the discharge pipe (8) and is used to control the filling and discharge.

6. The process for constructing artificial false roof facilities in the downward approach filling mining method according to claim 5 is characterized in that: The material feeding control assembly comprises: A sliding box (902) is slidably mounted inside the fixed frame (802); A second motor (903) is fixed inside the sliding box (902); an output shaft of the second motor (903) passes through the sliding box (902) and is then fixed with a connecting shaft (901); The spiral guide blade (9) is fixed to the bottom of the connecting shaft (901), and the spiral guide blade (9) is located inside the discharge pipe (8).

7. The process for constructing artificial false roof facilities in the downward approach filling mining method according to claim 6 is characterized in that: The material feeding control assembly also includes: A threaded sleeve (10) fixed on the side wall of the discharge pipe (8); A first screw rod (1001) is rotatably mounted inside the material discharge space (803) and is threadedly connected to the threaded sleeve (10); The third motor (1002) is fixed on the side wall of the installation box (2) and drives the first screw rod (1001) to rotate via the output shaft.

8. The process for constructing artificial false roof facilities in the downward approach filling mining method according to claim 6 is characterized in that: The material feeding control assembly also includes: A baffle plate (12) slidably mounted on the inner wall of the discharge pipe (8); A lifting block (1201) is fixed on the side wall of the blocking plate (12) and is slidably mounted inside a slide groove (1202) on the inner wall of the discharge pipe (8); The second spring (1203) is fixed between the bottom of the lifting block (1201) and the bottom of the sliding groove (1202).

9. The process for constructing artificial false roof facilities in the downward approach filling mining method according to claim 6 is characterized in that: The material feeding control assembly also includes: A filter plate (13) fixed inside the filler storage space; A movable frame (1101) is driven by a driving assembly to be slidably mounted on the top of the filter plate (13); Two crushing tables (11) are symmetrically installed inside the moving frame (1101), and a plurality of extrusion protrusions (1102) are fixed at intervals on opposite sides of the two crushing tables (11); The two second cylinders (1103) are respectively fixed between the two crushing tables (11) and the inner wall of the moving frame (1101).

10. The process for constructing artificial false roof facilities in the downward approach filling mining method according to claim 2 is characterized in that: The compacting assembly comprises: A lifting box (601) is vertically slidably installed inside the lifting space (604) inside the installation box (2); A first cylinder (603) is fixed inside the lifting space (604) and is used to drive the lifting box (601) to move vertically; A vibration motor (602) is fixed inside the lifting box (601); The vibration plate (6) is vertically slidably mounted on the bottom of the lifting box (601), and the vibration motor (602) is used to drive the vibration plate (6) to vibrate.

Images