Large-size coal rock synchronous loading and CT scanning system

Abstract

The invention relates to the field of coal rock sample devices, in particular to a large-size coal rock synchronous loading and CT scanning system which comprises a synchronous loading and CT scanning device arranged in an underground closed laboratory, a material conveying system and a protection system. The synchronous loading and CT scanning device comprises a radiator, a transfer truss, a feeding mechanism, a servo loading machine and a detector which are sequentially arranged from left to right; the material conveying system comprises a hoisting chamber located on the ground, an elevator is arranged in the hoisting chamber on the ground to reach the ground, an underground exit of the elevator is provided with a second channel extending in the left-right direction, and the second channel reaches the ground to close the door of the laboratory; and the underground closed laboratory is provided with a lead door. According to the invention, automatic transportation and transfer of coal rock samples can be realized, and the problem that large-size coal rock test samples are difficult to transport is solved. According to the invention, an operating system facility is provided with a monitoring system on the ground, so that radiation of large-scale CT equipment can be avoided, and synchronous safe loading and CT scanning of a large-size coal rock test are realized.

Description

Technical Field

[0001] The present invention relates to the field of coal and rock sample devices, and in particular to a large-size coal and rock synchronous loading and CT scanning system. Background Art

[0002] Performing CT scanning on coal and rock samples and CT scanning during the loading process of coal and rock samples are common methods for obtaining coal and rock characteristics. However, existing CT scanning devices and coal and rock synchronous loading and CT scanning devices are mostly limited to small-size tests, and the maximum size of coal and rock samples is not greater than 100 mm. Due to the small size of coal and rock samples, it is difficult for the obtained coal and rock samples to fully and truly reflect the actual properties of in-situ coal and rock. On the one hand, when the size of the coal and rock sample is small, if the sampling position is not properly selected, the properties measured based on the coal and rock sample will be quite different from the actual ones. On the other hand, due to the small size of the coal and rock sample, it is greatly disturbed by core sampling and sample preparation work, and the properties of the coal and rock have already deviated significantly from the actual ones.

[0003] However, if large-scale coal and rock tests are carried out, it is difficult to perform transportation work during the test. At the same time, the equipment required for CT scanning of large-size coal and rock samples is large, with high power and large radiation, which poses a threat to health. Summary of the Invention

[0004] In view of the deficiencies in the above-mentioned prior art, the present invention provides a synchronous loading and CT scanning device, which includes a radiator, a transfer truss, a feeding mechanism, a servo loading machine, and a detector arranged in sequence from left to right; a loading table is provided at the center of the base of the servo loading machine; the radiator and the detector perform CT scanning on the coal and rock sample located on the loading table in the left-right direction; the transfer truss includes a front leg and a rear leg, a cross beam is provided at the top of the front leg and the rear leg, a grasping mechanism is slidably arranged on the right side of the cross beam, and the grasping mechanism includes a lifting mechanism in the height direction, and a left clamping jaw and a right clamping jaw are arranged at the lower part of the lifting mechanism; the feeding mechanism includes a horizontally arranged planar support plate, the right side of the planar support plate reaches the loading table, and the left side is located directly below the traveling route of the grasping mechanism; a slide rail extending in the left-right direction is provided at each of the front and rear parts of the planar support plate, and the front side of a C-shaped plug frame with an opening to the right is slidably connected to the front slide rail through a liftable leg, and the rear side is slidably connected to the rear slide rail through a liftable leg; the liftable leg is provided with a hydraulic telescopic device that can push it to slide on the front and rear tracks; the opening of the C-shaped plug frame is larger than the loading table.

[0005] Preferably, the synchronous loading and CT scanning device is arranged in an underground closed laboratory, and a first road is arranged in front of or behind the synchronous loading and CT scanning device in the underground closed laboratory.

[0006] Preferably, the loading platform is rotatable. A press and a rotatable indenter are provided on the top of the servo loading machine. The indenter corresponds to the loading platform. While performing axial loading, the synchronous circumferential rotation of the indenter and the loading platform can cooperate with the CT scanning device to perform CT scanning.

[0007] Preferably, the left jaw and the right jaw can move closer or farther apart.

[0008] The present invention also claims protection for a large-size coal and rock synchronous loading and CT scanning system, which includes the synchronous loading and CT scanning device described above, and also includes a material transportation system; the material transportation system includes a hoisting chamber located on the ground. A crane and a chain thereon are provided at the top inside the hoisting chamber. The chain is detachably connected to the cushion block; an elevator and a staircase are also provided inside the ground hoisting chamber. The elevator and the staircase can reach underground. The underground exits of the elevator and the staircase are provided with a second passage extending in the left-right direction. The right side of the second passage reaches the door of the underground closed laboratory, which is opposite to and at the same level as the first passage; the material transportation system also includes an intelligent control transport vehicle.

[0009] Preferably, the top of the C-shaped plug-in frame is adapted to the structure of the cushion block.

[0010] Preferably, a connecting bolt is provided at the bottom end of the chain, and a screw hole is provided on the cushion block. The screw hole and the bolt can be threadedly connected.

[0011] Preferably, an acrylic board is provided on the upper part of the cushion block, and the upper part of the acrylic board is used to place coal and rock samples.

[0012] Preferably, it further includes a lead door for opening and closing the underground laboratory. The lead door is on the left side of the second passage and on the right side of the first passage. The lead door is slidably arranged in the front-rear direction and is provided with a slide rail at the bottom. The height of the slide rail is lower than that of the first road and the second road. A rotatable cover plate is provided on the side of the second passage. When the lead door is in the closed state, the cover plate is in a suspended state. When the lead door is opened, the cover plate is laid flat to act as a bridge to connect the first road and the second road across the track.

[0013] Preferably, the cover plate is controlled to rotate by a hydraulic rod.

[0014] Preferably, the electric control system is arranged in the ground electric control room; the control system is arranged in the ground control room.

[0015] Preferably, it further includes a ventilation system, which includes an air inlet pipe and an air outlet pipe. The air inlet pipe and the air outlet pipe are respectively connected to the ground and the underground closed laboratory, and a fan is used for circulating ventilation.

[0016] Preferably, it further includes a camera, which can monitor the entire system.

[0017] The present invention also provides a method for using a large-size coal and rock synchronous loading and CT scanning system, including

[0018] a. Select a suitable spacer, then place the coal and rock sample on it, connect the chain to the spacer, and use a crane to lift the spacer and the coal and rock sample to the intelligent transport vehicle through the chain;

[0019] b. The intelligent transport vehicle travels to the elevator and takes the elevator underground. After coming out, it reaches the second passage;

[0020] c. The intelligent transport vehicle travels to the first road and then to the transfer truss;

[0021] d. The left jaw and the right jaw clamp the spacer and the coal and rock sample, then move along the crossbeam to above the C-shaped insert frame, and then slowly lower to place the spacer and the coal and rock sample above the C-shaped insert frame; the C-shaped insert frame moves to the right along the slide rail on the plane support plate, and places the end of the spacer and the coal and rock sample above the loading table. At this time, the loading table is located inside the opening of the C-shaped insert frame. Slowly lower the C-shaped insert frame to place the spacer and the coal and rock sample on the loading table, and move the C-shaped insert frame to the left along the slide rail on the plane support plate to return to its original position;

[0022] e. Conduct tests on the coal and rock sample through the servo loading machine and the CT scanning device.

[0023] Preferably, in step a, an acrylic board is placed on the spacer.

[0024] Preferably, in step b, the intelligent transport vehicle runs to the lead door position; in step c, slide open the lead door and lower the cover plate; the intelligent transport vehicle travels to the first road and then to the transfer truss; raise the cover plate and close the lead door.

[0025] Beneficial effects: 1. By setting up a material transportation system, a transfer truss, and a feeding mechanism, the present invention can realize the automatic transportation and transfer of coal and rock samples, and solve the problem of difficult transportation of large-size coal and rock test samples.

[0026] 2. By arranging the synchronous loading and CT scanning device underground and equipping it with a material transportation system and a protection system, and configuring a monitoring system for the operating system facilities on the ground, the present invention can avoid the radiation of large CT equipment and realize the synchronous and safe loading and CT scanning of large-size coal and rock tests. Description of the Drawings

[0027] Figure 1 It is a schematic diagram of the overall structure of the large-size coal and rock synchronous loading and CT scanning system of the present invention;

[0028] Figure 2 It is a schematic diagram of the structure of the hoisting and transportation device of the present invention;

[0029] Figure 3Schematic diagram of the lead door structure of the present invention;

[0030] Figure 4 Top view of the transfer truss of the present invention. Specific embodiments

[0031] The technical solutions of the present invention will be described in more detail below with reference to the accompanying drawings in the embodiments of the present invention.

[0032] The present invention provides a large-size coal and rock synchronous loading and CT scanning system, which can realize the synchronous loading and CT scanning of coal and rock samples with a size of 500mm×500mm×500mm, as Figures 1-4 shown. The system includes a synchronous loading and CT scanning device, a material transportation system, and a protection system, and also includes an electric control system, an operating system, a ventilation system, and a monitoring system.

[0033] As Figure 1 、 Figure 4 shown, the synchronous loading and CT scanning device is arranged in an underground closed laboratory, and includes a radiator (accelerator / radiation source), a transfer truss (mechanical truss), and a feeding mechanism arranged in sequence from left to right ( Figure 4) A servo loading machine (loading system) and a detector; the servo loading machine includes a rectangular base, a rotatable loading table is arranged at the center of the rectangular base, and support columns are arranged at the four corners of the rectangular base. Specifically, two support columns are arranged on the front side of the rectangular base, and two support columns are arranged on the rear side of the rectangular base. A press and a rotatable press head are arranged at the top of the support columns. The press head corresponds to the loading table. The servo loading machine is a well-known device in the art and will not be described in detail here; the radiator (emitter) and the detector are the main components of a CT scanning device. The radiator (emitter) and the detector perform CT scanning on the coal and rock sample located on the loading table in the left-right direction. The CT scanning device is a well-known device in the art and will not be described in detail here; in the underground closed laboratory, a first road is arranged in front of or behind the synchronous loading and CT scanning device; the transfer truss is an overall gantry hoisting mechanism, including a front leg and a rear leg. Cross beams are arranged in the front-back direction at the tops of the front leg and the rear leg to form a gantry structure. A grasping mechanism is slidably arranged on the cross beam. The grasping mechanism can move in the front-back direction along the cross beam. The grasping mechanism is entirely located on the right side of the cross beam and includes a lifting mechanism in the height direction. A left clamping jaw and a right clamping jaw are arranged at the lower part of the lifting mechanism. The left clamping jaw and the right clamping jaw can move closer or farther away from each other to grasp the coal and rock sample and the cushion block located on the first road; a feeding mechanism is arranged between the transfer truss and the servo loading machine. The feeding mechanism includes a planar support plate arranged horizontally in the transverse direction. The right side of the planar support plate reaches the loading table, and the left side is located directly below the traveling route of the grasping mechanism; a slide rail extending in the left-right direction is arranged at the front and rear parts of the planar support plate respectively. The front side of a C-shaped plug frame with an opening to the right is slidably connected to the front slide rail through a liftable leg, and the rear side is slidably connected to the rear slide rail through a liftable leg; the liftable leg is provided with a hydraulic telescopic device that can push it to slide on the front track and the rear track. The opening of the C-shaped plug frame is larger than the loading table, and the top of the C-shaped plug frame is adapted to the cushion block structure;

[0034] Such as Figures 1-2As shown, the material transportation system includes a hoisting chamber located on the ground. A crane is provided at the top inside the hoisting chamber. A chain is provided under the crane, and a connecting bolt is provided at the bottom end of the chain. It also includes a cushion block with a height of about 15 cm. Generally, it adopts a rectangular block structure. Different thickness cushion blocks or different numbers of cushion blocks can be used according to the different sizes of coal and rock samples. A screw hole is provided on the cushion block, and the screw hole can be threadedly connected with the bolt. An acrylic board is provided on the upper part of the cushion block, and the upper part of the acrylic board is used to place coal and rock samples. The function of the acrylic board is to eliminate the metal artifacts of the base. An elevator and a staircase are also provided inside the ground hoisting chamber. The elevator and the staircase can reach underground. A second passage extending in the left-right direction is provided in front of or behind the underground exit of the elevator and the staircase. The right side of the second passage reaches the door of the underground closed laboratory, which is opposite to the first passage and is at the same level. It also includes an intelligent control transport vehicle, which is used to transport coal and rock samples and cushion blocks, and transports the coal and rock samples and cushion blocks from the hoisting chamber through the elevator, the second passage, and the first passage to the transfer truss.

[0035] As Figure 1 , Figure 3 As shown, the protection system includes a lead door, which is the door for opening and closing the underground closed laboratory. The left side of the lead door is the second passage and the right side is the first passage. The lead door is slidably arranged, and a slide rail is provided at the bottom. The height of the slide rail is lower than that of the first road and the second road. The slide rail is arranged in the front-rear direction. A cover plate is provided on the second passage side. The cover plate is controlled by a hydraulic rod (starting rod) to rotate. When the lead door is in the closed state, the cover plate is in the suspended state. When the lead door is opened, the cover plate is laid flat to play a role as a bridge to cross the track and connect the first road and the second road.

[0036] The electric control system includes a voltage stabilizer, a radiator power supply, a radiator temperature control system, a radiator control system, a CT electric control cabinet, and a loading table electric control cabinet. The electric control system is arranged in the ground electric control room.

[0037] The control system includes a synchronous loading and CT scanning device control system, a material transportation system control system, and a protection system control system, which are respectively used to control the components of the synchronous loading and CT scanning device, the material transportation system, and the protection system to work. The control system is arranged in the ground control room.

[0038] The ventilation system includes an air inlet pipe and an air outlet pipe. The air inlet pipe and the air outlet pipe are respectively connected to the ground and the underground closed laboratory, and a fan is used for circulating ventilation.

[0039] The monitoring system includes a camera, which is convenient for monitoring the entire system, especially for observing the situation in the underground closed laboratory from the ground control room to control the experiment.

[0040] The steps for using the large-size coal and rock synchronous loading and CT scanning system of the present invention are as follows:

[0041] a. Select a suitable cushion block, place an acrylic plate on the cushion block, and then place the coal and rock sample on it. Connect the screw holes on the cushion block with the bolts on the chain, and the crane lifts the cushion block and the coal and rock sample through the chain to the intelligent control transport vehicle;

[0042] b. The intelligent control transport vehicle travels to the elevator, takes the elevator to the underground, exits and reaches the second passage, and then runs to the position of the lead door;

[0043] c. Slide open the lead door, lower the cover plate, the intelligent control transport vehicle travels to the first road and then to the transfer truss; raise the cover plate and close the lead door;

[0044] d. The left jaw and the right jaw clamp the cushion block and the coal and rock sample, then move along the cross beam to above the C-shaped insert frame, and then slowly lower to place the cushion block and the coal and rock sample above the C-shaped insert frame; the C-shaped insert frame moves to the right along the slide rail on the flat support plate, and places the end of the cushion block and the coal and rock sample above the loading table. At this time, the loading table is located inside the opening of the C-shaped insert frame. Slowly lower the C-shaped insert frame to place the cushion block and the coal and rock sample on the loading table, and move the C-shaped insert frame to the left along the slide rail on the flat support plate to return to its original position;

[0045] e. Conduct tests on the coal and rock sample through the servo loading machine and the CT scanning device.

[0046] Although the present invention has been described in detail with general descriptions and specific embodiments above, based on the present invention, some modifications or improvements can be made, which are obvious to those skilled in the art. Therefore, these modifications or improvements made without departing from the spirit of the present invention all fall within the scope of protection required by the present invention.

Claims

1. A synchronous loading and CT scanning device, characterized in that: It includes a radiator, a transfer truss, a feeding mechanism, a servo loader and a detector which are arranged in sequence from left to right; a loading platform is arranged at the center of the servo loader base; the radiator and the detector perform CT scanning on the coal and rock samples located on the loading platform along the left and right directions; the transfer truss includes front legs and rear legs, a crossbeam is arranged on the top of the front legs and the rear legs, a grabbing mechanism is slidingly arranged on the right side of the crossbeam, the grabbing mechanism includes a lifting mechanism along the height direction, and a left clamping claw and a right clamping claw are arranged at the lower part of the lifting mechanism; the feeding mechanism includes a horizontally arranged plane support plate, the right side of the plane support plate reaches the loading platform, and the left side is located directly below the travel route of the grabbing mechanism; a slide rail extending along the left and right directions is respectively arranged at the front and rear of the plane support plate, and the front side of a C-shaped rack opening to the right is slidably connected to the front side slide rail through a liftable leg, and the rear side is slidably connected to the rear side slide rail through a liftable leg; the liftable leg is provided with a hydraulic telescopic device which can push it to slide on the front rail and the rear rail; the opening of the C-shaped rack is larger than the loading platform.

2. The synchronous loading and CT scanning device according to claim 1, characterized in that: The synchronous loading and CT scanning device is arranged in an underground closed laboratory. In the underground closed laboratory, a first road is arranged in front of or behind the synchronous loading and CT scanning device.

3. The synchronous loading and CT scanning device according to claim 2, characterized in that: The loading platform is rotatable, and a press and a rotatable pressing head are arranged on the top of the servo loading machine. The pressing head corresponds to the loading platform, and while axial loading is performed, the pressing head and the loading platform rotate synchronously in an annular direction, and can cooperate with a CT scanning device to perform CT scanning; And / or, the left clamping jaw and the right clamping jaw can move closer or farther.

4. A large-size coal-rock synchronous loading and CT scanning system, characterized in that: It includes the synchronous loading and CT scanning device as described in claim 2 or 3, and also includes a material transportation system; the material transportation system includes a lifting room located on the ground, a crane and a chain thereon are arranged on the top of the lifting room, and the chain is detachably connected to the cushion block; the lifting room on the ground is also provided with an elevator and a staircase, the elevator and the staircase can reach the underground, and the underground exit of the elevator and the staircase is provided with a second passage extending in the left and right directions, the right side of the second passage reaches the door of the underground closed laboratory, opposite to the first passage and located at the same level; the material transportation system also includes an intelligent control transport vehicle.

5. The large-size coal-rock synchronous loading and CT scanning system according to claim 4 is characterized in that: The top of the C-shaped rack is adapted to the cushion structure; And / or, a connecting bolt is provided at the bottom end of the chain, and a screw hole is provided on the cushion block, and the screw hole and the bolt can be threadedly connected; And / or, an acrylic plate is arranged on the upper part of the pad, and the upper part of the acrylic plate is used for placing the coal and rock samples.

6. The large-size coal-rock synchronous loading and CT scanning system according to claim 4 or 5, characterized in that: It also includes a lead door for opening and closing the underground laboratory, with the second channel on the left side of the lead door and the first channel on the right side. The lead door is set to slide along the front and rear directions, and a slide rail is set at the bottom. The height of the slide rail is lower than the first road and the second road. A rotatable cover plate is set on the side of the second channel. When the lead door is in a closed state, the cover plate is in a suspended state. When the lead door is opened, the cover plate is laid flat to act as a bridge across the track to connect the first road and the second road.

7. The large-size coal-rock synchronous loading and CT scanning system according to claim 6 is characterized in that: The cover plate is rotated by being controlled by a hydraulic rod.

8. The large-size coal-rock synchronous loading and CT scanning system according to claim 6 is characterized in that: The electric control system is arranged in the ground electric control room; the control system is arranged in the ground control room; And / or, further comprising a ventilation system, including an air inlet pipe and an air outlet pipe, wherein the air inlet pipe and the air outlet pipe are respectively connected to the ground and underground closed laboratories, and a fan is used for circulating ventilation; And / or, it also includes a camera, which can monitor the entire system.

9. A method for using a large-size coal-rock synchronous loading and CT scanning system, using the large-size coal-rock synchronous loading and CT scanning system according to any one of claims 4 to 8, characterized in that: include: a. Select a suitable cushion block, then place the coal and rock samples on it, connect the chain to the cushion block, and use the crane to lift the cushion block and coal and rock samples to the intelligent control transport vehicle through the chain; b. The intelligent transport vehicle moves to the elevator and takes the elevator to the underground, and arrives at the second passage after exiting; c. The intelligent control transport vehicle moves to the first road and then to the transfer truss; d. The left and right jaws clamp the pad and coal rock sample, then move along the crossbeam to the top of the C-type rack, and then slowly descend to place the pad and coal rock sample on the top of the C-type rack; the C-type rack moves to the right along the slide rail on the flat support plate, and places the pad and coal rock sample end on the loading platform. At this time, the loading platform is located in the opening of the C-type rack, and the C-type rack is slowly lowered to place the pad and coal rock sample on the loading platform, and the C-type rack moves to the left along the slide rail on the flat support plate to return to its original position; e. Test coal and rock samples using servo loaders and CT scanning equipment.

10. The method for using the large-size coal-rock synchronous loading and CT scanning system according to claim 9, characterized in that: In step a, an acrylic plate is placed on the pad; And / or, in step b, the intelligent control transport vehicle runs to the lead door position; in step c, the lead door is slid open and the cover is lowered; the intelligent control transport vehicle moves to the first road and then to the transfer truss; the cover is raised and the lead door is closed.

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