Coal gangue crushing ball mill grouting device

Abstract

This invention provides a grouting device for a coal gangue crushing ball mill, comprising a support frame, a drive assembly, a crushing chamber, and a screening assembly. Friction balls are distributed on the inner wall of the crushing chamber. The screening assembly includes a transfer assembly, a scraper assembly, and a screen plate that divides the crushing chamber into a screening chamber and a crushing chamber. The coal gangue crushing ball mill grouting device has a crushing state and a screening state. In the crushing state, the screening chamber is located above the crushing chamber, and the crushing chamber rotates relative to the screen plate to crush the coal gangue within the crushing chamber using friction balls and steel balls. In the screening state, the crushing chamber drives the screen plate to rotate via the transfer assembly, causing the screening chamber to rotate below the crushing chamber. The screen plate screens the crushed steel balls and coal gangue. The scraper assembly is located on the side of the screen plate facing the crushing chamber and includes a movable pusher to push the steel balls on the screen plate during the screening state. This solution solves the problems of high labor intensity and low efficiency associated with manual screening of ore after ball milling.

Description

Technical Field

[0001] This invention relates to the field of ball mill equipment technology, and more specifically, to a grouting device for a coal gangue crushing ball mill. Background Technology

[0002] Coal gangue grouting device refers to a new technology that uses grouting to reduce sedimentation in the overburden separation layer of coal seam, inhibit overburden movement, reduce surface subsidence, and adapt to safe mining of coal under "three-under" pressure. The coal gangue grouting device usually mixes coal gangue and then injects it into the interior of the overburden separation layer of coal seam. However, during mixing, it is impossible to crush the larger coal gangue blocks, so a ball mill is needed to grind them into finer pieces.

[0003] To address the aforementioned issues, patent CN218423148U proposes a ball mill for facilitating ore crushing, comprising a shell, a top frame, a motor, and a rotating shaft. The top frame is fixedly mounted on the top of the shell, and the motor is fixedly mounted on the top of the top frame. The rotating shaft is mounted on the output shaft of the motor. A dustproof box is fixedly mounted on the outer side of the shell, and an inner partition plate is fixedly mounted on the inner wall of the dustproof box. While this patent can ball mill and crush ore, in practical use, it requires manual screening of the ore after ball milling, increasing the labor intensity of workers and affecting processing efficiency. Summary of the Invention

[0004] This invention provides a coal gangue crushing ball mill grouting device to solve the problems of high labor intensity and low efficiency in the prior art of manually screening the ore after ball milling.

[0005] To address the aforementioned problems, this invention provides a coal gangue crushing ball mill grouting device, comprising a support frame, a drive assembly, and a crushing jar rotatably mounted on the support frame. The drive assembly is mounted on the support frame and drivenly connected to the crushing jar. Multiple friction balls are evenly distributed on the inner wall of the crushing jar's cavity. The coal gangue crushing ball mill grouting device also includes a screening assembly, comprising a transfer assembly, a scraper assembly, and a screen plate. The screen plate is disposed within the crushing jar's cavity and divides the cavity into a screening chamber and a crushing chamber. The coal gangue crushing ball mill grouting device has both a crushing state and a screening state, and is used in coal gangue crushing... When the ball mill grouting device is in the crushing state, the screening chamber is located above the crushing chamber. The crushing tank rotates relative to the screen plate to crush the coal gangue located in the crushing chamber through friction balls and steel balls. When the coal gangue crushing ball mill grouting device is in the screening state, the screen plate is connected to the crushing tank through a transition assembly. The crushing tank drives the screen plate to rotate and causes the screening chamber to rotate below the crushing chamber. The crushed steel balls and coal gangue are screened through the screen plate. The scraping assembly is located on the side of the screen plate facing the crushing chamber and includes a pusher that is movable along the axial direction of the crushing tank. The pusher is used to push the steel balls located on the screen during the screening state.

[0006] Furthermore, the transfer assembly includes a transfer ring assembly and a push rod assembly. A set of transfer ring assemblies is provided at both ends of the crushing tank. The two ends of the screen plate along the axial direction of the crushing tank are connected to the inner wall of at least one set of transfer ring assemblies. The transfer ring assemblies have transfer holes. The push rod assembly is fixedly arranged on the outer periphery of the crushing tank. The two ends of the push rod assembly along the axial direction of the crushing tank have transfer ends. The transfer ends are movable along the axial direction of the crushing tank. When the coal gangue crushing ball mill grouting device is in the crushing state, the transfer ends are spaced apart from the transfer holes on the corresponding side. When the coal gangue crushing ball mill grouting device is in the screening state, the transfer ends are inserted into the transfer holes on the corresponding side.

[0007] Furthermore, the transition ring assembly includes a rotating ring and a positioning ring fixedly sleeved on the outer periphery of the rotating ring. The two ends of the screen plate along the axial direction of the crushing tank are respectively inserted into the two rotating rings. The screen plate is fixedly connected to the inner wall of at least one rotating ring. The positioning ring protrudes radially from the outer periphery of the crushing tank, and the transition hole is provided on the positioning ring.

[0008] Furthermore, the transition ring assembly has multiple transition holes distributed circumferentially, and the push rod assembly has multiple transition ends distributed circumferentially along both sides of the crushing tank along the axial direction. When the coal gangue crushing ball mill grouting device is in the screening state, the multiple transition ends are inserted into the multiple transition holes on the corresponding side one by one.

[0009] Furthermore, the push rod assembly includes a bidirectional cylinder and a connecting ring. A connecting ring is provided on both sides of the bidirectional cylinder. The connecting ring includes an annular part and a plurality of first positioning rods provided on the annular part. One end of the first positioning rod protrudes from the connecting ring along the axial direction of the corresponding side of the transition ring assembly and forms a transition end. The bidirectional cylinder is fixedly provided on the outer periphery of the crushing tank and has a telescopic pneumatic rod on both sides along the axial direction of the crushing tank. The pneumatic rod and the connecting ring on the corresponding side are driven to connect.

[0010] Furthermore, the push rod assembly also includes a push plate. The pneumatic rod of the bidirectional cylinder and the connecting ring on the corresponding side are connected through the push plate. There are multiple push rod assemblies, which are distributed at intervals along the circumference of the crushing tank.

[0011] Furthermore, the two ends of the crushing tank are the feeding side and the grouting side, respectively. The coal gangue crushing ball mill grouting device also includes a feeding hopper and a guard plate set on the feeding side. The feeding hopper is fixedly installed on the support frame and is set at an inclination relative to the crushing tank. The opening of the transfer ring assembly is divided into an upper half and a lower half by the screen plate. The feeding port of the feeding hopper is connected to the opening of the lower half. The guard plate is supported on the feeding hopper and passes through the upper half to stop the steel balls in the crushing chamber pushed by the pusher when the coal gangue crushing ball mill grouting device is in the screening state.

[0012] Furthermore, the two ends of the crushing tank are the feeding side and the grouting side, respectively. The coal gangue crushing ball mill grouting device also includes a discharge assembly set on the grouting side. The discharge assembly includes a fixed disk and a rotating disk. Both the fixed disk and the rotating disk are installed in the transfer ring assembly located on the grouting side. The fixed disk has a first grouting hole, and the rotating disk has a second grouting hole. The rotating disk is rotatably set with the transfer ring assembly. When the coal gangue crushing ball mill grouting device is in the crushing state, the first grouting hole and the second grouting hole are spaced apart in the circumferential direction of the transfer ring assembly. When the coal gangue crushing ball mill grouting device is in the screening state, the second grouting hole rotates to be directly opposite the first grouting hole.

[0013] Furthermore, the coal gangue crushing ball mill grouting device also includes a positioning component disposed on the grouting side. The positioning component includes a fixed frame and a second positioning rod. The fixed frame is disposed on a support frame, and the second positioning rod is disposed on the fixed frame and is movably disposed along the axial direction of the crushing tank. The fixed plate has a first positioning hole, and the rotating plate has a second positioning hole. When the coal gangue crushing ball mill grouting device is in the crushing state, the first positioning hole and the second positioning hole are spaced apart in the circumferential direction of the transition ring assembly. One end of the second positioning rod passes through the first positioning hole and cooperates with the surface stop of the rotating plate. When the coal gangue crushing ball mill grouting device is in the screening state, the second positioning hole rotates to be directly opposite the first positioning hole, and the second positioning rod passes through the first positioning hole and the second positioning hole.

[0014] Furthermore, the positioning assembly also includes a spring and a pull ring limiting member. The pull ring limiting member is sleeved on the outer periphery of the second positioning rod, and the two ends of the spring abut against the second positioning rod and the fixing frame, respectively.

[0015] Furthermore, the scraping assembly also includes a threaded rod, a first drive motor, and a connecting block. The screen plate includes a frame and a screen located within the frame. The threaded rod extends axially along the crushing tank. The connecting block has internal threads and is threadedly connected to the threaded rod. The pusher is connected to the connecting block. The pusher extends radially along the crushing tank and slides in cooperation with the surface of the screen. The first drive motor is fixedly mounted on the frame and driven by the threaded rod to drive the connecting block to move the pusher axially along the crushing tank.

[0016] Furthermore, the drive assembly includes a support platform, a second drive motor, a gear, and a gear ring. The gear ring is fixedly sleeved on the outer periphery of the crushing tank. The support platform is mounted on a support frame. The second drive motor is mounted on the support platform and connected to the gear drive. The gear and the gear ring mesh.

[0017] The present invention provides a coal gangue crushing ball mill grouting device, comprising a support frame, a drive assembly, and a crushing jar rotatably mounted on the support frame. The drive assembly is mounted on the support frame and drivenly connected to the crushing jar. Multiple friction balls are evenly distributed on the inner wall of the crushing jar's cavity. The coal gangue crushing ball mill grouting device also includes a screening assembly, comprising a transfer assembly, a scraper assembly, and a screen plate. The screen plate is disposed within the crushing jar's cavity and divides the cavity into a screening chamber and a crushing chamber. The coal gangue crushing ball mill grouting device has both a crushing state and a screening state, and is used in coal gangue crushing... When the ball mill grouting device is in the crushing state, the screening chamber is located above the crushing chamber. The crushing tank rotates relative to the screen plate to crush the coal gangue located in the crushing chamber through friction balls and steel balls. When the coal gangue crushing ball mill grouting device is in the screening state, the screen plate is connected to the crushing tank through a transition assembly. The crushing tank drives the screen plate to rotate and causes the screening chamber to rotate below the crushing chamber. The crushed steel balls and coal gangue are screened through the screen plate. The scraping assembly is located on the side of the screen plate facing the crushing chamber and includes a pusher that is movable along the axial direction of the crushing tank. The pusher is used to push the steel balls located on the screen plate during the screening state.

[0018] This scheme, when the coal gangue crushing ball mill grouting device is in the crushing state, pours the coal gangue mixed with steel balls into the crushing chamber of the crushing tank. The rotation of the crushing tank is achieved by the drive component, multiple friction balls on the inner wall of the crushing tank, and multiple steel balls located in the crushing chamber of the crushing tank. This improves the crushing effect and efficiency of the coal gangue while achieving the crushing of the coal gangue. After crushing, the screen plate is connected to the crushing chamber via a transfer assembly. A drive assembly drives the crushing chamber, causing the screen plate and scraper assembly to rotate together. This reverses the positions of the crushing chamber and the screening chamber, switching the coal gangue crushing ball mill grouting device to screening mode. The crushed coal gangue in the crushing chamber passes through the screen plate under its own weight and falls into the screening chamber, while the steel balls are stopped above the screen plate. This achieves rapid screening of the coal gangue, avoiding the labor-intensive and inefficient manual screening of the ore after ball milling in existing technologies. Furthermore, the pusher of the scraper assembly pushes multiple steel balls above the screen plate, allowing the crushed coal gangue trapped between the steel balls to also pass through the screen plate and fall into the screening chamber, improving the thoroughness and reliability of coal gangue screening. Attached Figure Description

[0019] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0020] Figure 1A schematic diagram of the structure of a coal gangue crushing ball mill grouting device provided in an embodiment of the present invention is shown;

[0021] Figure 2 It shows Figure 1 A partial structural diagram from another perspective;

[0022] Figure 3 It shows Figure 1 Cross-sectional view of the crushing tank and rotating ring;

[0023] Figure 4 It shows Figure 1 A partial structural diagram from another perspective;

[0024] Figure 5 It shows Figure 1 A three-dimensional structural diagram of the crushing tank and screening components;

[0025] Figure 6 It shows Figure 1 Schematic diagram of the connection between the intermediate sieve plate and the scraper assembly;

[0026] Figure 7 It shows Figure 6 A three-dimensional structural diagram of the scraper assembly;

[0027] Figure 8 It shows Figure 1 A schematic diagram of the grouting device for a coal gangue crushing ball mill on the grouting side;

[0028] Figure 9 It shows Figure 8 Exploded view of the discharge component in the middle;

[0029] Figure 10 It shows Figure 8 A schematic diagram of the positioning component.

[0030] The above figures include the following reference numerals:

[0031] 1. Support frame; 2. Crushing tank; 201. Friction ball; 202. Rotating ring; 3. Support platform; 401. Second drive motor; 402. Gear; 403. Gear ring; 5. Feed hopper; 501. Guard plate; 601. Two-way cylinder; 602. Push plate; 603. Connecting ring; 604. First positioning rod; 605. Positioning ring; 606. Screen plate; 607. Adapter hole; 701. Threaded rod; 702. First drive motor; 703. Connecting block; 704. Pushing component; 801. Fixed plate; 802. Rotating plate; 8031. First grouting hole; 8032. Second grouting hole; 8041. First positioning hole; 8042. Second positioning hole; 805. Fixed frame; 806. Second positioning rod; 807. Spring; 808. Pull ring limiting component; 9. Roller. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0033] like Figures 1 to 10 As shown, an embodiment of the present invention provides a coal gangue crushing ball mill grouting device, including a support frame 1, a drive assembly, and a crushing tank 2 rotatably mounted on the support frame 1. The drive assembly is mounted on the support frame 1 and drivenly connected to the crushing tank 2. Multiple friction balls 201 are evenly distributed on the inner wall of the crushing tank 2. The coal gangue crushing ball mill grouting device also includes a screening assembly, which includes a transfer assembly, a scraping assembly, and a screen plate 606. The screen plate 606 is disposed within the cavity of the crushing tank 2 and divides the cavity of the crushing tank 2 into a screening cavity and a crushing cavity. The coal gangue crushing ball mill grouting device has a crushing state and a screening state. When in the crushing state, the screening chamber is located above the crushing chamber. The crushing tank 2 rotates relative to the screen plate 606 to crush the coal gangue located in the crushing chamber through the friction balls 201 and steel balls. When the coal gangue crushing ball mill grouting device is in the screening state, the screen plate 606 is connected to the crushing tank 2 through the adapter assembly. The crushing tank 2 drives the screen plate 606 to rotate and causes the screening chamber to rotate to the bottom of the crushing chamber. The crushed steel balls and coal gangue are screened through the screen plate 606. The scraping assembly is set on the side of the screen plate 606 facing the crushing chamber and includes a pusher 704 that is movable along the axial direction of the crushing tank 2. The pusher 704 is used to push the steel balls located on the screen plate during the screening state.

[0034] In this embodiment, when the coal gangue crushing ball mill grouting device is in the crushing state, the coal gangue mixed with steel balls to be crushed is poured into the crushing chamber of the crushing tank 2. The rotation of the crushing tank 2 is achieved by the drive component, the multiple friction balls 201 on the inner wall of the crushing tank 2, and the multiple steel balls located in the crushing chamber of the crushing tank 2. This achieves the crushing of the coal gangue to be crushed, while improving the crushing effect and crushing efficiency. After crushing, the screen plate 606 is connected to the crushing tank 2 via a transfer assembly. The crushing tank 2 is driven by a drive assembly, causing the screen plate 606 and the scraper assembly to rotate together. This reverses the positions of the crushing chamber and the screening chamber, switching the coal gangue crushing ball mill grouting device to a screening state. The crushed coal gangue in the crushing chamber passes through the screen plate 606 under its own weight and falls into the screening chamber. The steel balls are stopped above the screen plate 606, avoiding the labor-intensive and inefficient manual screening of the ore after ball milling, as is common in existing technologies. This achieves rapid screening of coal gangue. Furthermore, the pusher 704 of the scraper assembly pushes multiple steel balls above the screen plate 606, allowing the crushed coal gangue trapped between the steel balls to also pass through the screen plate 606 and fall into the screening chamber, improving the sufficiency and reliability of coal gangue screening.

[0035] Preferably, in this embodiment, the crushing tank 2 is placed horizontally and its interior is divided into symmetrical crushing chambers and screening chambers by the screen plate 606. When the coal gangue crushing ball mill grouting device is in the crushing state, the screen plate 606 is horizontally inserted inside the crushing tank 2. When the coal gangue crushing ball mill grouting device switches to the screening state, the screen plate 606 rotates 180° with the crushing tank 2. It can be understood that the steel balls in this embodiment are used to crush the coal gangue. The setting of the friction ball 201 is beneficial to increasing the friction between the steel ball and the coal gangue, thereby improving the crushing efficiency and crushing effect of the steel ball on the coal gangue.

[0036] Specifically, the transfer assembly includes a transfer ring assembly and a push rod assembly. A set of transfer ring assemblies is provided at both ends of the crushing tank 2. The two ends of the screen plate 606 along the axial direction of the crushing tank 2 are connected to the inner wall of at least one set of transfer ring assemblies. The transfer ring assembly has a transfer hole 607. The push rod assembly is fixedly arranged on the outer periphery of the crushing tank 2. The two ends of the push rod assembly along the axial direction of the crushing tank 2 have transfer ends. The transfer ends are movable along the axial direction of the crushing tank 2. When the coal gangue crushing ball mill grouting device is in the crushing state, the transfer ends are spaced apart from the transfer hole 607 on the corresponding side. When the coal gangue crushing ball mill grouting device is in the screening state, the transfer ends are inserted into the transfer hole 607 on the corresponding side.

[0037] In this embodiment, during the transition of the coal gangue crushing ball mill grouting device to the screening state, the transition ends on both sides of the push rod assembly move relatively away from each other along the axial direction of the crushing tank 2 and respectively enter the transition hole 607 on the corresponding side, thereby realizing the connection of the crushing tank 2, the transition ring assembly, and the screen plate 606. Conversely, during the transition of the coal gangue crushing ball mill grouting device to the crushing state, the transition ends on both sides of the push rod assembly move relatively closer to each other along the axial direction of the crushing tank 2 and disengage from the transition hole 607. This arrangement facilitates the separable connection of the crushing tank 2 and the screen plate 606, ensuring the reliability of the coal gangue crushing ball mill grouting device in the transition between the crushing and screening states.

[0038] like Figures 1 to 3 as well as Figure 5 , Figure 8 and Figure 9 As shown, the transition ring assembly includes a rotating ring 202 and a positioning ring 605 fixedly sleeved on the outer periphery of the rotating ring 202. The two ends of the screen plate 606 along the axial direction of the crushing tank 2 are respectively inserted into the two rotating rings 202. The screen plate 606 is connected to the inner wall of at least one of the rotating rings 202. The positioning ring 605 protrudes radially from the outer periphery of the crushing tank 2. The transition hole 607 is provided on the positioning ring 605.

[0039] In this embodiment, the size of the rotating ring 202 is adapted to the size of the crushing tank 2, that is, the inner diameter and outer diameter of the rotating ring 202 are the same as those of the crushing tank 2. The rotating ring 202 is fixedly sleeved on the outer circumference of the crushing tank 202. The transition hole 607 extends along the axial direction of the crushing tank 2 and the opening is located on the side surface of the rotating ring 202 facing the push rod assembly. This arrangement helps to ensure the connection between the screen plate 606 and the rotating ring 202, while avoiding the situation where the opening of the transition hole 607 is blocked, preventing the transition end from entering the transition hole 607, thus ensuring the reliability of the transition assembly for the transition between the screen plate 606 and the crushing tank 2.

[0040] It is understood that in this embodiment, one end of the sieve plate 606 is fixedly connected to the inner wall of one side of the rotating ring 202, and the other side of the rotating ring 202 is supported on the other end of the sieve plate 606, or the two ends of the sieve plate 606 are fixedly connected to the inner walls of the two sides of the rotating ring 202 respectively.

[0041] In this embodiment, the transition ring assembly has multiple transition holes 607 distributed circumferentially, and the push rod assembly has multiple transition ends distributed circumferentially on both sides along the axial direction of the crushing tank 2. When the coal gangue crushing ball mill grouting device is in the screening state, the multiple transition ends are correspondingly inserted into the multiple transition holes 607 on the corresponding side. This arrangement helps to ensure the reliability and stability of the connection between the push rod assembly and the positioning ring 605. In this embodiment, there are two sets of push rod assemblies.

[0042] like Figure 5As shown, the push rod assembly includes a bidirectional cylinder 601 and a connecting ring 603. A connecting ring 603 is provided on both sides of the bidirectional cylinder 601. Each connecting ring 603 includes an annular component and multiple first positioning rods 604 mounted on the annular component. One end of each first positioning rod 604 protrudes from the connecting ring 603 along the axial direction of the corresponding transition ring assembly, forming a transition end. The bidirectional cylinder 601 is fixedly mounted on the outer periphery of the crushing tank 2 and has retractable pneumatic rods on both sides along the axial direction of the crushing tank 2. The pneumatic rods are driven to connect with the corresponding connecting ring 603. This configuration facilitates the formation of the transition end and the setting and simultaneous driving of multiple transition ends. Specifically, during the transition from the coal gangue crushing ball mill grouting device to the screening state, the pneumatic rods on both sides of the bidirectional cylinder 601 extend simultaneously and push the connecting rings 603 on both sides away from each other. Multiple first positioning rods of the same connecting ring 603 move synchronously and pass into multiple transition holes 607 located on the corresponding side of the positioning ring 605.

[0043] Furthermore, the pusher assembly also includes a pusher plate 602. The pneumatic rod of the bidirectional cylinder 601 and the corresponding connecting ring 603 are connected through the pusher plate 602. There are multiple pusher assemblies, which are distributed at intervals along the circumference of the crushing tank 2. This arrangement increases the driving area of ​​the pneumatic rod of the bidirectional cylinder 601 on the connecting ring 603 through the pusher plate 602, avoiding the situation where the force is too concentrated when the pneumatic rod is directly connected to the connecting ring 603, which could easily lead to damage to both. On the other hand, having multiple pusher assemblies helps to further ensure the reliability and stability of the pusher assembly driving the connecting ring 603. In this embodiment, there are two sets of pusher assemblies, which are arranged at intervals along the circumference of the crushing tank 2.

[0044] like Figure 1 and Figure 4 As shown, the two ends of the crushing tank 2 are the feeding side and the grouting side, respectively. The coal gangue crushing ball mill grouting device also includes a feeding hopper 5 and a guard plate 501 set on the feeding side. The feeding hopper 5 is fixedly installed on the support frame 1 and is inclined relative to the crushing tank 2. The opening of the transfer ring group is divided into an upper half and a lower half by the screen plate 606. The feeding port of the feeding hopper 5 is connected to the opening of the lower half. The guard plate 501 is supported on the feeding hopper 5 and passes through the upper half to stop the steel balls in the crushing chamber pushed by the pusher 704 when the coal gangue crushing ball mill grouting device is in the screening state.

[0045] In this embodiment, the pusher 704 is a strip rod. When the coal gangue crushing ball mill grouting device is in the crushing state, the coal gangue mixed steel balls to be crushed are poured into the crushing chamber of the crushing tank 2 through the feed hopper 5. After crushing, the positions of the crushing chamber and the screening chamber are reversed, with the crushing chamber located at the top. The pushing direction of the pusher of the scraper assembly is from the grouting side to the feeding side. The surface of the guard plate 501 abuts against the end of the screen plate 606, or the shortest distance between the surface of the guard plate 501 and the end of the screen plate 606 is less than the radial dimension of the steel ball. By blocking the upper half opening of the transition ring group located on the grouting side through the guard plate 501, the steel balls located in the upper crushing chamber are prevented from being pushed out of the crushing tank 2 and the cavity of the transition ring group on the grouting side, thus stopping the steel balls and ensuring the reliability of the screening and crushing of the coal gangue crushing ball mill grouting device.

[0046] like Figures 8 to 10 As shown, the two ends of the crushing tank 2 are the feeding side and the grouting side, respectively. The coal gangue crushing ball mill grouting device also includes a discharge component set on the grouting side. The discharge component includes a fixed disk 801 and a rotating disk 802. The fixed disk 801 and the rotating disk 802 are both installed in the transfer ring assembly located on the grouting side. The fixed disk 801 has a first grouting hole 8031, and the rotating disk 802 has a second grouting hole 8032. The rotating disk 802 is rotatably arranged with the transfer ring assembly. When the coal gangue crushing ball mill grouting device is in the crushing state, the first grouting hole 8031 ​​and the second grouting hole 8032 are spaced apart in the circumferential direction of the transfer ring assembly. When the coal gangue crushing ball mill grouting device is in the screening state, the second grouting hole 8032 rotates to be directly opposite the first grouting hole 8031. With this configuration, during the crushing process, the first grouting hole 8031 ​​and the second grouting hole 8032 are spaced apart in the circumferential direction to prevent coal gangue from being discharged from the grouting holes. During the screening process, the first grouting hole 8031 ​​and the second grouting hole 8032 are aligned. At this time, the crushed coal gangue in the crushing tank 2 can be removed, or a grouting pipe can be connected to the aligned grouting holes to perform grouting work on the crushed coal gangue, thereby completing the entire coal gangue crushing ball mill grouting work.

[0047] Specifically, the coal gangue crushing ball mill grouting device also includes a positioning component disposed on the grouting side. The positioning component includes a fixed frame 805 and a second positioning rod 806. The fixed frame 805 is disposed on the support frame 1, and the second positioning rod 806 is disposed on the fixed frame 805 and is movably disposed along the axial direction of the crushing tank 2. The fixed disk 801 has a first positioning hole 8041, and the rotating disk 802 has a second positioning hole 8042. When the coal gangue crushing ball mill grouting device is in the crushing state, the first positioning hole 8041 and the second positioning hole 8042 are spaced apart in the circumferential direction of the transition ring assembly. One end of the second positioning rod 806 passes into the first positioning hole 8041 and cooperates with the surface stop of the rotating disk 802. When the coal gangue crushing ball mill grouting device is in the screening state, the second positioning hole 8042 rotates to be directly opposite the first positioning hole 8041, and the second positioning rod 806 passes through the first positioning hole 8041 and the second positioning hole 8042. This configuration facilitates the restriction of the rotation of the fixed disk 801, and also makes it easier to connect the fixed disk 801 and the rotating disk 802 and restrict the rotation of the rotating disk 802 when the coal gangue crushing ball mill grouting device switches from the crushing state to the screening state, so as to avoid the crushing tank 2, screen plate 606, etc. rotating too much or not rotating in place.

[0048] Furthermore, the positioning assembly also includes a spring 807 and a pull ring limiting member 808. The pull ring limiting member 808 is sleeved on the outer periphery of the second positioning rod 806, and the two ends of the spring 807 abut against the second positioning rod 806 and the fixing frame 805, respectively.

[0049] In this embodiment, a guide rod extending along the crushing tank 2 and toward the crushing tank 2 is provided on the fixing frame 805. The second positioning rod 806 is sleeved on the outer periphery of the guide rod and is slidably arranged along the extension direction of the guide rod. The pull ring limiting member 808 is sleeved on the outer periphery of the second positioning rod 806. The spring 807 is sleeved on the outer periphery of the guide rod and / or on the outer periphery of the portion of the second positioning rod 806 located between the fixing frame 805 and the pull ring limiting member 808. The two ends of the spring 807 abut against the pull ring limiting member 808 and the fixing frame 805, respectively. When the coal gangue crushing ball mill grouting device is in the crushing state, one end of the second positioning rod 806 is inserted into the first positioning hole 8041 and cooperates with the surface stop of the rotating disk 802. At this time, the spring 807 is compressed between the pull ring limiter 808 and the fixing frame 805. During the process of the coal gangue crushing ball mill grouting device switching to the screening state, the rotating disk 802 will rotate with the crushing tank 2 and the transfer ring group on this side. When the rotating disk 802 rotates to the point where the first positioning hole 8041 and the second positioning hole 8042 are aligned, the second positioning rod 806 passes through the second positioning hole 8042 under the action of the elastic force of the spring 807 to lock the rotating disk 802, thereby locking the crushing tank 2 and the transfer ring groups on both sides. At the same time, the second grouting hole 8032 rotates to correspond with the first grouting hole 8031. It should be noted that in this embodiment, during the process of switching from the crushing state to the screening state, the crushing tank 2, the transfer ring group and the rotating disk 802 rotate 180° in the coal gangue crushing ball mill grouting device.

[0050] like Figure 6 and Figure 7 As shown, the scraping assembly also includes a threaded rod 701, a first drive motor 702, and a connecting block 703. The screen plate 606 includes a frame and a screen located within the frame. The threaded rod 701 extends axially along the crushing tank 2. The connecting block 703 has an internal thread and is threadedly connected to the threaded rod 701. The pusher 704 is connected to the connecting block 703. The pusher 704 extends radially along the crushing tank 2 and slides in cooperation with the surface of the screen. The first drive motor 702 is fixedly mounted on the frame and drivenly connected to the threaded rod 701 to drive the connecting block 703 to move the pusher 704 axially along the crushing tank 2.

[0051] In this embodiment, the threaded rod 701 extends axially along the crushing tank 2 with an extension length approximately equal to or greater than the extension length of the screen in that direction. The pusher 704 extends radially along the crushing tank with an extension length approximately equal to or greater than the extension length of the screen in that direction, ensuring a full-range scraping effect of the pusher 704 on the area below the screen during movement. The connecting block 703 is located below the screen and is restricted from rotation by the screen. The threaded rod 701 is driven to rotate by the first drive motor 702. The output shaft of the first drive motor 702 will drive the threaded rod 701 to rotate. The connecting block 703, stopped by the screen plate 606, will move the pusher 704 axially along the crushing tank 2 as the threaded rod 701 rotates. The pusher 704 moves and pushes the steel ball stopped above the screen plate 606, so that the steel ball moves and the coal gangue mixed between it can fall from the screen plate 606 into the screening chamber, thereby completing the full screening of the coal gangue.

[0052] like Figure 1 and Figure 2 As shown, the drive assembly includes a support platform 3, a second drive motor 401, a gear 402, and a gear ring 403. The gear ring 403 is fixedly sleeved on the outer periphery of the crushing tank 2. The support platform 3 is mounted on the support frame 1. The second drive motor 401 is mounted on the support platform 3 and is connected to the gear 402 for drive. The gear 402 and the gear ring 403 mesh. This configuration allows the support platform 3 to support the gear 402 and adjust the meshing position of the gear 402 and the gear ring 403. The meshing of the gear 402 and the gear ring 403 enables the gear 402 to drive the gear ring 403 and the crushing tank 2 as a whole, ensuring the reliability of the drive assembly and the drive for crushing coal gangue.

[0053] Preferably, such as Figure 1 As shown, the coal gangue crushing ball mill grouting device also includes multiple rollers 9 installed at the bottom of the support frame 1 to facilitate pushing the coal gangue crushing ball mill grouting device to the designated position.

[0054] In summary, this invention provides a grouting device for a coal gangue crushing ball mill. Its working principle includes: in the crushing state (initial state), the pneumatic rods of the bidirectional cylinder 601 are all in a retracted state, the first positioning rods 604 are not inserted into the transition holes 607 of the corresponding positioning rings 605, the screen plate 606 is parallel to the ground, and the cavity of the crushing tank 2 is divided into an upper screening chamber and a lower crushing chamber. The threaded rod 701, the first drive motor 702, the connecting block 703, and the pusher 704 are all located below the screen plate 606. The positions of the fixed disk 801 and the rotating disk 802 are as follows: Figure 9 As shown, the second positioning rod 806 is inserted into the second positioning hole 8042 on the fixed plate 801, and the spring 807 is in a compressed state.

[0055] When the coal gangue crushing ball mill grouting device needs to perform coal gangue crushing ball mill grouting work, the entire device is pushed to the designated position by the roller 9, and then the coal gangue mixed steel balls to be crushed are poured into the crushing chamber of the crushing tank 2 along the feed hopper 5. The second drive motor 401 will drive the gear ring 403 meshing with it to rotate through the gear 402, thereby driving the crushing tank 2 to rotate. During this process, the transfer ring group and the screen plate 606 remain stationary, and the steel balls will crush the coal gangue in the lower part of the crushing tank 2. After the coal gangue is crushed, the telescopic rod of the bidirectional cylinder 601 extends and drives the push plates 602 on both sides and the connecting rings 603 on both sides to move synchronously in a direction away from each other. The first positioning rod 604 moves with the connecting ring 603 and inserts into the corresponding transition hole 607 on the positioning ring 605 on the corresponding side. Since the positioning ring 605 on the same side is fixedly connected to the rotating ring 202, it can drive the positioning ring 605, the rotating ring 202 and the screen plate 606 to rotate synchronously when the crushing tank 2 rotates. Then, the second drive motor 401 drives the crushing tank 2 to rotate 180 degrees, and the positioning ring 605 and the rotating ring 202 rotate synchronously. The step causes the screen plate 606 to rotate 180 degrees, reversing the positions of the crushing chamber and the screening chamber. Simultaneously, the positioning ring 605 and rotating ring 202 on the grouting side drive the rotating disk 802 to rotate 180 degrees synchronously. When the second positioning hole 8042 on the rotating disk 802 aligns with the first positioning hole 8041 on the fixed disk 801, one end of the second positioning rod 806, which passes through the first positioning hole 8041, is inserted into the second positioning hole 8042 on the rotating disk 802 under the elastic force of the spring 807. This ensures that the surface crushing tank 2 and the screen plate 606 have rotated 180 degrees and limits the rotation. The second grouting hole 8032 on the disc 802 is aligned with the first grouting hole 8031 ​​on the fixed disc 801. At this time, the crushed coal gangue in the crushing tank 2 can be removed, or a grouting pipe can be connected to the grouting hole to grout the crushed coal gangue, thus completing the entire coal gangue crushing ball mill grouting operation. The crushed coal gangue will pass through the screen plate 606 from top to bottom and fall into the screening chamber of the crushing tank 2. The steel balls will be stopped on the screen plate 606. Since the scraper assembly is located on one side of the crushing chamber, during the above process, the scraper assembly also rotates and flips to the upper side of the screen plate 606 along with the screen plate 606. The output shaft of the first drive motor 702 drives the threaded rod 701 to rotate. The connecting block 703, stopped by the rotation of the screen plate 606, moves along the axial direction of the crushing tank 2 above the screen plate 606 as the threaded rod 701 rotates. The pusher 704 moves with the movement of the connecting block 703 and pushes the steel ball stopped above the screen plate 606, so that the steel ball moves and the coal gangue mixed in between can fall from the screen plate 606 into the screening chamber, thereby completing the full screening of the coal gangue. At the same time, the guard plate 501 on the feed side blocks the steel ball to prevent the steel ball from being squeezed off the screen plate 606 by the pusher 704.

[0056] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

[0057] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0058] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0059] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this invention; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0060] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0061] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

Claims

1. A coal gangue crushing ball mill grouting device, comprising a support frame (1), a drive assembly, and a crushing tank (2) rotatably mounted on the support frame (1), wherein the drive assembly is mounted on the support frame (1) and drivenly connected to the crushing tank (2), and a plurality of friction balls (201) are uniformly distributed on the inner wall of the cavity of the crushing tank (2), characterized in that, The coal gangue crushing ball mill grouting device further includes a screening component, which includes a transfer component, a scraping component, and a screen plate (606). The screen plate (606) is disposed in the cavity of the crushing tank (2) and divides the cavity of the crushing tank (2) into a screening cavity and a crushing cavity. The coal gangue crushing ball mill grouting device has a crushing state and a screening state. When the coal gangue crushing ball mill grouting device is in the crushing state, the screening cavity is located above the crushing cavity. The crushing tank (2) rotates relative to the screen plate (606) to rub the coal gangue located in the crushing cavity through the friction balls (201) and steel balls. Crushing; when the coal gangue crushing ball mill grouting device is in the screening state, the screen plate (606) is connected to the crushing tank (2) through the transfer assembly. The crushing tank (2) drives the screen plate (606) to rotate and causes the screening chamber to rotate to the bottom of the crushing chamber. The crushed steel balls and coal gangue are screened through the screen plate (606). The scraping assembly is set on the side of the screen plate (606) facing the crushing chamber and includes a pusher (704) that is movable along the axial direction of the crushing tank (2). The pusher (704) is used to push the steel balls located on the screen plate in the screening state.

2. The grouting device for a coal gangue crushing ball mill according to claim 1, characterized in that, The adapter assembly includes an adapter ring assembly and a push rod assembly. Both ends of the crushing tank (2) are provided with an adapter ring assembly. The two ends of the screen plate (606) along the axial direction of the crushing tank (2) are connected to the inner wall of at least one adapter ring assembly. The adapter ring assembly has an adapter hole (607). The push rod assembly is fixedly arranged on the outer periphery of the crushing tank (2). Both ends of the push rod assembly along the axial direction of the crushing tank (2) have adapter ends. The adapter ends are movable along the axial direction of the crushing tank (2). When the coal gangue crushing ball mill grouting device is in the crushing state, the adapter ends are spaced apart from the adapter hole (607) on the corresponding side. When the coal gangue crushing ball mill grouting device is in the screening state, the adapter ends pass through the adapter hole (607) on the corresponding side.

3. The coal gangue crushing ball mill grouting device according to claim 2, characterized in that, The adapter ring assembly includes a rotating ring (202) and a positioning ring (605) fixedly sleeved on the outer periphery of the rotating ring (202). The two ends of the screen plate (606) along the axial direction of the crushing tank (2) are respectively inserted into the two rotating rings (202). The screen plate (606) is fixedly connected to the inner wall of at least one of the rotating rings (202). The positioning ring (605) protrudes radially from the outer periphery of the crushing tank (2). The adapter hole (607) is provided on the positioning ring (605).

4. The coal gangue crushing ball mill grouting device according to claim 2, characterized in that, The adapter ring assembly has multiple adapter holes (607) distributed circumferentially. The push rod assembly has multiple adapter ends distributed circumferentially on both sides along the axial direction of the crushing tank (2). When the coal gangue crushing ball mill grouting device is in the screening state, the multiple adapter ends are inserted one-to-one into the multiple adapter holes (607) on the corresponding side.

5. The coal gangue crushing ball mill grouting device according to claim 4, characterized in that, The push rod assembly includes a bidirectional cylinder (601) and a connecting ring (603). A connecting ring (603) is provided on both sides of the bidirectional cylinder (601). The connecting ring (603) includes an annular part and a plurality of first positioning rods (604) provided on the annular part. One end of the first positioning rod (604) protrudes from the connecting ring (603) along the axial direction of the crushing tank (2) and forms the transition end. The bidirectional cylinder (601) is fixedly provided on the outer periphery of the crushing tank (2) and has a telescopic pneumatic rod on both sides along the axial direction of the crushing tank (2). The pneumatic rod and the connecting ring (603) on the corresponding side are driven to connect.

6. The coal gangue crushing ball mill grouting device according to claim 5, characterized in that, The push rod assembly also includes a push plate (602). The pneumatic rod of the bidirectional cylinder (601) and the connecting ring (603) on the corresponding side are connected through the push plate (602). There are multiple push rod assemblies, and the multiple push rod assemblies are distributed circumferentially along the crushing tank (2).

7. The grouting device for a coal gangue crushing ball mill according to claim 2, characterized in that, The two ends of the crushing tank (2) are the feeding side and the grouting side, respectively. The coal gangue crushing ball mill grouting device also includes a feeding hopper (5) and a guard plate (501) set on the feeding side. The feeding hopper (5) is fixedly installed on the support frame (1) and is inclined relative to the crushing tank (2). The opening of the transfer ring group is divided into an upper half and a lower half by the screen plate (606). The feeding port of the feeding hopper (5) is connected to the opening of the lower half. The guard plate (501) is supported on the feeding hopper (5) and passes through the upper half so as to stop the steel balls in the crushing chamber pushed by the pusher (704) when the coal gangue crushing ball mill grouting device is in the screening state.

8. The coal gangue crushing ball mill grouting device according to claim 2, characterized in that, The crushing tank (2) has a feeding side and a grouting side at its two ends, respectively. The coal gangue crushing ball mill grouting device also includes a discharge assembly disposed on the grouting side. The discharge assembly includes a fixed disk (801) and a rotating disk (802). Both the fixed disk (801) and the rotating disk (802) are installed within the transition ring assembly located on the grouting side. The fixed disk (801) has a first grouting hole (8031), and the rotating disk (802) has a second grouting hole (8031). Two grouting holes (8032) are provided. The rotating disk (802) is rotatably arranged with the transfer ring assembly. When the coal gangue crushing ball mill grouting device is in the crushing state, the first grouting hole (8031) and the second grouting hole (8032) are spaced apart in the circumferential direction of the transfer ring assembly. When the coal gangue crushing ball mill grouting device is in the screening state, the second grouting hole (8032) rotates to be directly opposite the first grouting hole (8031).

9. The coal gangue crushing ball mill grouting device according to claim 8, characterized in that, The coal gangue crushing ball mill grouting device further includes a positioning component disposed on the grouting side. The positioning component includes a fixed frame (805) and a second positioning rod (806). The fixed frame (805) is disposed on the support frame (1), and the second positioning rod (806) is disposed on the fixed frame (805) and movably disposed along the axial direction of the crushing tank (2). The fixed disk (801) has a first positioning hole (8041), and the rotating disk (802) has a second positioning hole (8042). When the coal gangue crushing ball mill grouting device is in the crushing tank (2) position... In the crushing state, the first positioning hole (8041) and the second positioning hole (8042) are spaced apart in the circumferential direction of the adapter ring assembly. One end of the second positioning rod (806) passes into the first positioning hole (8041) and engages with the surface stop of the rotating disk (802). When the coal gangue crushing ball mill grouting device is in the screening state, the second positioning hole (8042) rotates to be directly opposite the first positioning hole (8041), and the second positioning rod (806) passes through the first positioning hole (8041) and the second positioning hole (8042).

10. The coal gangue crushing ball mill grouting device according to claim 9, characterized in that, The positioning assembly also includes a spring (807) and a pull ring limiting member (808). The pull ring limiting member (808) is sleeved on the outer periphery of the second positioning rod (806). The two ends of the spring (807) abut against the second positioning rod (806) and the fixing frame (805), respectively.

11. The grouting device for a coal gangue crushing ball mill according to claim 1, characterized in that, The scraping assembly further includes a threaded rod (701), a first drive motor (702), and a connecting block (703). The screen plate (606) includes a frame and a screen located within the frame. The threaded rod (701) extends axially along the crushing tank (2). The connecting block (703) has an internal thread and is threadedly connected to the threaded rod (701). The pusher (704) is connected to the connecting block (703). The pusher (704) extends radially along the crushing tank (2) and slides in cooperation with the surface of the screen. The first drive motor (702) is fixedly mounted on the frame and drivenly connected to the threaded rod (701) to drive the connecting block (703) to move the pusher (704) axially along the crushing tank (2).

12. The coal gangue crushing ball mill grouting device according to claim 1, characterized in that, The drive assembly includes a support platform (3), a second drive motor (401), a gear (402), and a gear ring (403). The gear ring (403) is fixedly sleeved on the outer periphery of the crushing tank (2). The support platform (3) is mounted on the support frame (1). The second drive motor (401) is mounted on the support platform (3) and drivenly connected to the gear (402). The gear (402) meshes with the gear ring (403).

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