A sand making equipment for producing manufactured sand using mine tailings

Abstract

The present invention discloses a sand-making device for producing machine-made sand by using mine tailings, including a bottom plate. In the middle of the upper surface of the bottom plate, two vertical plates are fixedly connected. A grinding hopper is rotatably connected between the two vertical plates. The cross-section of the grinding hopper is U-shaped. One side of the bottom of the grinding hopper is provided with a discharge port. A reverse U-shaped roller frame is arranged in the grinding hopper. The reverse U-shaped roller frame is driven to move downward inside the grinding hopper through a lifting structure. At the same time, the crushing roller gradually approaches the inner bottom of the grinding hopper following the reverse U-shaped roller frame. When the gap between the two is reduced to an appropriate height, stones are put into the grinding hopper. The motor is controlled to drive the crushing roller to rotate. The crushing roller drives the stones between it and the side wall of the grinding hopper to the lower bottom of the grinding hopper, and the stones are crushed to an appropriate diameter through extrusion and then discharged from the discharge port. The adjustment of the distance between the crushing roller and the inner bottom of the grinding hopper is realized, and sands of various diameter specifications can be made, reducing the sand-making cost.

Description

Technical Field

[0001] The present invention relates to the technical field of tailings utilization, and particularly relates to a sand-making device for producing machine-made sand by using mine tailings. Background Art

[0002] In mineral processing, the part with a low content of useful target components in the products of the separation operation and unable to be used for production is called tailings. Tailings are not completely useless waste materials and often contain components that can be used for other purposes and can be comprehensively utilized. Achieving waste-free discharge is the need to make full use of mineral resources and protect the ecological environment.

[0003] Among them, after being processed by a mine tailings production machine, the tailings will be decomposed into relatively small stones, which is convenient for subsequent sorting and processing. The tailings without metal content can be used to process into recycled sand and gravel aggregates. Waste stones and the like can all be used to process sand and gravel aggregates, and they have a wide range of uses. When processing sand making, it is necessary to put the stones into a sand-making device with crushing rolls. Through the continuous rotation of the crushing rolls, the stones are squeezed and crushed, and finally sand and gravel aggregates are made.

[0004] However, in the above operation process, due to the non-adjustable internal crushing rolls of a single sand-making device, it can only crush stones with a single sand diameter. When it is necessary to crush stones into sand with multiple diameter specifications, multiple sand-making devices need to be prepared, which undoubtedly increases the sand-making cost. At the same time, the convex teeth on the surface of the crushing rolls will be ground after long-term work when squeezing the stones, resulting in a deterioration of the sand-making effect. At this time, the crushing rolls need to be replaced. In the existing sand-making devices, due to their large volume and complex internal structure, hoisting equipment is required for a long time to cooperate during disassembly and assembly, further increasing the replacement cost of the crushing rolls. Summary of the Invention

[0005] The present invention provides a sand-making device for producing machine-made sand by using mine tailings. The distance between the crushing roll and the inner bottom of the grinding hopper of the sand-making device is adjustable, and sand and gravel with multiple diameter specifications can be made, reducing the sand-making cost.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A sand-making device for producing machine-made sand by using mine tailings provided by the present invention includes a bottom plate. The middle of the upper surface of the bottom plate is fixedly connected with two vertical plates. A grinding hopper is rotatably connected between the two vertical plates. The cross-section of the grinding hopper is U-shaped. One side of the bottom of the grinding hopper is provided with a discharge port. A reverse U-shaped roller frame is arranged in the grinding hopper. One side of the reverse U-shaped roller frame is detachably connected with a disassembly and assembly plate. Insert sleeves are rotatably connected to the opposite surfaces of the disassembly and assembly plate and the other side wall of the reverse U-shaped roller frame. A crushing roll is clamped between the two insert sleeves through a limiting structure. A motor for driving the insert sleeve on this side to rotate is fixedly installed on the side wall of the reverse U-shaped roller frame;

[0008] On both sides of the upper opening of the frosted hopper, support plates are fixedly connected. Between the two support plates, a lifting structure for driving the inverted U-shaped roller frame to move up and down is rotationally connected. On the surface of the bottom plate, on the side far from the discharge port, a propping component for driving the frosted hopper to switch between the first state and the second state is provided. In the first state, the frosted hopper is vertically arranged and perpendicular to the bottom plate; in the second state, the frosted hopper is inclined and the upper opening is far from the propping component.

[0009] When using the above sand-making equipment for producing machine-made sand from mine tailings, according to the required diameter of the sand making, the inverted U-shaped roller frame is driven to move down inside the frosted hopper through the lifting structure. At the same time, the crushing roller gradually approaches the inner bottom of the frosted hopper following the inverted U-shaped roller frame. When the gap between the two is reduced to an appropriate height, stones are put into the frosted hopper. The motor is controlled to drive the crushing roller to rotate. The crushing roller drives the stones between it and the side wall of the frosted hopper to the lower bottom of the frosted hopper, and the stones are crushed to an appropriate diameter by extrusion and then discharged from the discharge port.

[0010] When the crushing roller needs to be replaced, the inverted U-shaped roller frame is driven to move up through the lifting structure until the crushing roller moves out of the upper opening of the frosted hopper. Then, the frosted hopper is driven into the second state through the propping component. At this time, the lifting structure rotates between the two support plates under the gravity of the crushing roller, and at this time, the lifting structure together with the crushing roller still remains perpendicular to the bottom plate. The crushing roller is controlled to move down to contact the surface of the bottom plate, and then the disassembly and installation plate is removed to complete the disassembly of the crushing roller. When installing, just operate in the reverse direction.

[0011] Preferably, a T-shaped block is fixedly connected to the upper end of the disassembly and installation plate. A T-shaped groove adapted to the T-shaped block is provided on the side wall of the inverted U-shaped roller frame, and a plugging component for fixing the T-shaped block is provided on the side wall of the inverted U-shaped roller frame.

[0012] Preferably, the plugging component includes a pin hole opened on the side wall of the inverted U-shaped roller frame, which penetrates the T-shaped groove. A pin is inserted in the pin hole, and a fixing hole for inserting the pin is penetrated and opened on the side wall of the T-shaped block.

[0013] Preferably, a magnet is fixedly connected to the end of the pin, and the magnet is magnetically connected to the iron-made inverted U-shaped roller frame.

[0014] Preferably, cross-shaped chutes are opened on both side walls of the frosted hopper. Cross-shaped sliders are rotationally connected to the opposite surfaces of the disassembly and installation plate and the other side wall of the inverted U-shaped roller frame, and the two cross-shaped sliders are respectively slidably connected in the two cross-shaped chutes. One of the cross-shaped sliders is rotationally connected to the output shaft of the motor.

[0015] Preferably, a slope panel is fixedly connected to the upper surface of the inverted U-shaped roller frame, and the high end of the slope panel faces the side of the discharge port.

[0016] Preferably, the limiting structure includes two limiting grooves formed in the socket, and two limiting blocks clamped with the limiting grooves are fixedly connected to the shaft rod at the end of the crushing roller.

[0017] Preferably, in the lifting structure, a cross plate rotatably connected between two support plates is included. A first electric push rod is fixedly installed in the middle of the cross plate, and the movable end of the first electric push rod is fixedly connected to the middle of the inverted U-shaped roller frame.

[0018] Preferably, in the supporting component, a second electric push rod is included, and both ends of the second electric push rod are respectively rotatably connected to the bottom plate and the abrasive sand hopper through hinge seats.

[0019] The beneficial effects are as follows:

[0020] 1. The lifting structure drives the inverted U-shaped roller frame to move downward inside the abrasive sand hopper. At the same time, the crushing roller gradually approaches the inner bottom of the abrasive sand hopper following the inverted U-shaped roller frame. When the gap between the two is reduced to an appropriate height, stones are put into the abrasive sand hopper. The motor is controlled to drive the crushing roller to rotate, and the crushing roller drives the stones between it and the side wall of the abrasive sand hopper to the lower bottom of the abrasive sand hopper, and the stones are crushed to an appropriate diameter by extrusion and then discharged from the discharge port. The distance between the crushing roller and the inner bottom of the abrasive sand hopper is adjusted, and sands of various diameter specifications can be made, reducing the sand making cost.

[0021] 2. The lifting structure drives the inverted U-shaped roller frame to move upward until the crushing roller moves out of the upper opening of the abrasive sand hopper. Then, the supporting component drives the abrasive sand hopper into the second state. At this time, the lifting structure rotates between the two support plates under the gravity of the crushing roller, and at this time, the lifting structure together with the crushing roller still remains perpendicular to the bottom plate. The crushing roller is controlled to move downward to contact the surface of the bottom plate, and then the disassembly and assembly plate is removed to complete the disassembly of the crushing roller. The whole disassembly and assembly process of the crushing roller can be carried out on the bottom plate, avoiding the use of lifting equipment, and the disassembly and assembly are fast and convenient, reducing the replacement cost of the crushing roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0023] Figure 1 is a three-dimensional view of the present invention;

[0024] Figure 2 is a sectional perspective view of the abrasive bucket of the present invention;

[0025] Figure 3 is an exploded perspective view of the crushing roller and related structures of the present invention;

[0026] Figure 4 is a perspective view of the second state of the abrasive bucket of the present invention.

[0027] The reference numerals are explained as follows:

[0028] 1, bottom plate; 2, vertical plate; 3, plug-in assembly; 3a, pin hole; 3b, pin; 3c, fixing hole; 3d, magnet; 4, abrasive bucket; 5, inverted U-shaped roller frame; 6, crushing roller; 7, disassembly and assembly plate; 8, socket; 9, motor; 10, support plate; 11, cross plate; 12, first electric push rod; 13, second electric push rod; 14, discharge port; 15, T-shaped groove; 16, T-shaped block; 17, limiting groove; 18, limiting block; 19, cross-shaped slider; 20, cross-shaped sliding groove; 21, slope panel. Detailed implementation manners

[0029] To make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other implementation manners obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope protected by the present invention.

[0030] Refer to Figures 1 - 4 As shown, the present invention provides a sand making device for producing machine-made sand from mine tailings, including a bottom plate 1. In the middle of the upper surface of the bottom plate 1, two vertical plates 2 are fixedly connected. Between the two vertical plates 2, an abrasive bucket 4 is rotatably connected. The cross-section of the abrasive bucket 4 is U-shaped. On one side of the bottom of the abrasive bucket 4, a discharge port 14 is provided. In the abrasive bucket 4, an inverted U-shaped roller frame 5 is provided. On one side of the inverted U-shaped roller frame 5, a disassembly and assembly plate 7 is detachably connected. On the opposite surfaces of the disassembly and assembly plate 7 and the other side wall of the inverted U-shaped roller frame 5, sockets 8 are rotatably connected. Between the two sockets 8, a crushing roller 6 is clamped through a limiting structure. On the side wall of the inverted U-shaped roller frame 5, a motor 9 for driving the rotation of the socket 8 on this side is fixedly installed;

[0031] On both sides of the upper end opening of the abrasive bucket 4, support plates 10 are fixedly connected. Between the two support plates 10, a lifting structure for driving the up and down movement of the inverted U-shaped roller frame 5 is rotatably connected. On the surface of the bottom plate 1, on the side far from the discharge port 14, a propping component for driving the switching of the abrasive bucket 4 between the first state and the second state is provided. In the first state, the abrasive bucket 4 is vertically arranged and perpendicular to the bottom plate 1; in the second state, the abrasive bucket 4 is obliquely arranged and the upper end opening is far from the propping component.

[0032] Referring to Figure 3 as shown, a T-shaped block 16 is fixedly connected to the upper end of the disassembly and assembly plate 7. A T-shaped groove 15 adapted to the T-shaped block 16 is formed in the side wall of the inverted U-shaped roller frame 5. A plugging component 3 for fixing the T-shaped block 16 is arranged on the side wall of the inverted U-shaped roller frame 5. The limiting structure includes two limiting grooves 17 formed in the socket 8. Two limiting blocks 18 clamped with the limiting grooves 17 are fixedly connected to the shaft rod at the end of the crushing roller 6. When assembling the crushing roller 6, place it on the surface of the bottom plate 1, so that the limiting block 18 at one end of the crushing roller 6 is clamped into the limiting groove 17 on the socket 8. Then place the disassembly and assembly plate 7 on one side of the inverted U-shaped roller frame 5, so that the T-shaped block 16 is inserted into the T-shaped groove 15 and fixed by the plugging component 3, completing the limiting and fixing of the shaft rods at both ends of the crushing roller 6 into the socket 8, which facilitates the motor 9 to drive the crushing roller 6 to rotate.

[0033] As an optional implementation manner, the plugging component 3 includes a pin hole 3a formed in the side wall of the inverted U-shaped roller frame 5. The pin hole 3a penetrates through the T-shaped groove 15. A pin 3b is inserted into the pin hole 3a. A fixing hole 3c plugged with the pin 3b is formed through the side wall of the T-shaped block 16. A magnet 3d is fixedly connected to the end of the pin 3b. The magnet 3d is magnetically connected to the iron inverted U-shaped roller frame 5. After the T-shaped block 16 is inserted into the T-shaped groove 15, insert the pin 3b into the pin hole 3a and the fixing hole 3c at the same time. At this time, the magnet 3d at the end of the pin 3b is magnetically connected to the iron inverted U-shaped roller frame 5, completing the limiting and fixing of the T-shaped block 16 and preventing it from falling off from the T-shaped groove 15.

[0034] Specifically, cross-shaped chutes 20 are formed in both side walls of the grinding hopper 4. Cross-shaped sliders 19 are rotatably connected to the opposite surfaces of the disassembly and assembly plate 7 and the other side wall of the inverted U-shaped roller frame 5, and the two cross-shaped sliders 19 are respectively slidably connected in the two cross-shaped chutes 20. One of the cross-shaped sliders 19 is rotatably connected to the output shaft of the motor 9. The cross-shaped sliders 19 and the cross-shaped chutes 20 can make the crushing roller 6 more stable when lifting.

[0035] As an optional implementation manner, a slope plate 21 is fixedly connected to the upper surface of the inverted U-shaped roller frame 5. The high end of the slope plate 21 faces the side of the discharge port 14. The slope plate 21 can prevent stones from falling towards the side of the discharge port 14, avoiding the stones being discharged without being crushed, and realizing the integrity of the structure.

[0036] Referring to Figure 4 as shown, the lifting structure includes a cross plate 11 rotatably connected between two support plates 10. A first electric push rod 12 is fixedly installed in the middle of the cross plate 11. The movable end of the first electric push rod 12 is fixedly connected to the middle of the inverted U-shaped roller frame 5, which can make the crushing roller 6 always keep a state perpendicular to the bottom plate 1 under its own gravity, facilitating crushing and disassembly and assembly.

[0037] Specifically, the propping component includes a second electric push rod 13. Both ends of the second electric push rod 13 are rotatably connected to the bottom plate 1 and the grinding hopper 4 through hinge seats respectively. After the second electric push rod 13 extends, its movable end drives the upper part of the grinding hopper 4 to rotate and tilt with the vertical plate 2 as the axis, which is convenient for subsequent replacement of the crushing roller 6.

[0038] With the above structure, during use, according to the required diameter of sand making, the lifting structure drives the inverted U-shaped roller frame 5 to move downward inside the grinding hopper 4. At the same time, the crushing roller 6 follows the inverted U-shaped roller frame 5 and gradually approaches the inner bottom of the grinding hopper 4. When the gap between the two is reduced to an appropriate height, stones are put into the grinding hopper 4. Control the motor 9 to drive the crushing roller 6 to rotate. The crushing roller 6 drives the stones between it and the side wall of the grinding hopper 4 to the lower bottom of the grinding hopper 4, and the stones are crushed to an appropriate diameter by extrusion and then discharged from the discharge port 14.

[0039] When the crushing roller 6 needs to be replaced, the lifting structure drives the inverted U-shaped roller frame 5 to move upward until the crushing roller 6 moves out of the upper opening of the grinding hopper 4. Then, the propping component drives the grinding hopper 4 into the second state. At this time, the lifting structure rotates between the two support plates 10 under the gravity of the crushing roller 6. At this time, the lifting structure together with the crushing roller 6 still maintains a state perpendicular to the bottom plate 1. Control the crushing roller 6 to move downward to contact the surface of the bottom plate 1, and then remove the disassembly and assembly plate 7 to complete the disassembly of the crushing roller 6. During installation, just operate in the reverse direction.

[0040] As described above, it is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A sand making device for producing machine-made sand using mine tailings, characterized in that: It includes a bottom plate (1). In the middle of the upper surface of the bottom plate (1), two vertical plates (2) are fixedly connected. A grinding hopper (4) is rotatably connected between the two vertical plates (2). The cross-section of the grinding hopper (4) is U-shaped. One side of the bottom of the grinding hopper (4) is provided with a discharge port (14). A reverse U-shaped roller frame (5) is arranged in the grinding hopper (4). One side of the reverse U-shaped roller frame (5) is detachably connected with a disassembly and assembly plate (7). Socket sleeves (8) are rotatably connected to the opposite surfaces of the disassembly and assembly plate (7) and the other side wall of the reverse U-shaped roller frame (5). A crushing roller (6) is clamped between the two socket sleeves (8) through a limiting structure. A motor (9) for driving the socket sleeve (8) on this side to rotate is fixedly installed on the side wall of the reverse U-shaped roller frame (5). On both sides of the upper end opening of the grinding hopper (4), support plates (10) are fixedly connected. A lifting structure for driving the reverse U-shaped roller frame (5) to move up and down is rotatably connected between the two support plates (10). On one side of the surface of the bottom plate (1) away from the discharge port (14), a propping component for driving the grinding hopper (4) to switch between a first state and a second state is arranged. In the first state, the grinding hopper (4) is vertically arranged and perpendicular to the bottom plate (1). The reverse U-shaped roller frame (5) is driven to move down inside the grinding hopper (4) through the lifting structure, so that the crushing roller (6) gradually approaches the inner bottom of the grinding hopper (4) following the reverse U-shaped roller frame (5), realizing the adjustment of the distance between the crushing roller (6) and the inner bottom of the grinding hopper (4). The reverse U-shaped roller frame (5) is driven to move up through the lifting structure until the crushing roller (6) moves out of the upper end opening of the grinding hopper (4). Then, the grinding hopper (4) is driven into the second state through the propping component. In the second state, the grinding hopper (4) is inclined and the upper end opening is away from the propping component. The lifting structure rotates between the two support plates (10) under the gravity of the crushing roller (6). At this time, the lifting structure together with the crushing roller (6) still maintains a state perpendicular to the bottom plate (1). After the crushing roller (6) moves down and contacts the surface of the bottom plate (1), the disassembly and assembly plate (7) is removed to complete the disassembly of the crushing roller (6).

2. The sand making equipment for producing manufactured sand by using mine tailings according to claim 1, characterized in that: A T-shaped block (16) is fixedly connected to the upper end of the disassembly and assembly plate (7). A T-shaped groove (15) adapted to the T-shaped block (16) is formed on the side wall of the reverse U-shaped roller frame (5). A plugging component (3) for fixing the T-shaped block (16) is arranged on the side wall of the reverse U-shaped roller frame (5).

3. The sand making equipment for producing machine-made sand using mine tailings according to claim 2, characterized in that: The plugging component (3) includes a pin hole (3a) formed on the side wall of the reverse U-shaped roller frame (5). The pin hole (3a) penetrates through the T-shaped groove (15). A pin (3b) is inserted into the pin hole (3a). A fixing hole (3c) for inserting the pin (3b) is formed through the side wall of the T-shaped block (16).

4. The sand making equipment for producing machine-made sand by using mine tailings according to claim 3, characterized in that: One end of the pin (3b) is fixedly connected with a magnet (3d). The magnet (3d) is magnetically connected to the iron reverse U-shaped roller frame (5).

5. The sand making equipment for producing machine-made sand by using mine tailings according to claim 1, characterized in that: Cross-shaped chutes (20) are formed in both side walls of the abrasive hopper (4). Cross-shaped sliders (19) are rotatably connected to the opposite surfaces of the disassembly and assembly plate (7) and the other side wall of the inverted U-shaped roller frame (5), and the two cross-shaped sliders (19) are respectively slidably connected in the two cross-shaped chutes (20). One of the cross-shaped sliders (19) is rotatably connected to the output shaft of the motor (9).

6. The sand making equipment for producing manufactured sand using mine tailings according to claim 1, wherein: A slope panel (21) is fixedly connected to the upper surface of the inverted U-shaped roller frame (5), and the high end of the slope panel (21) faces the side of the discharge port (14).

7. The sand making equipment for producing manufactured sand by using mine tailings according to claim 1, wherein: The limiting structure includes two limiting grooves (17) formed in the socket (8), and two limiting blocks (18) fixedly connected to the shaft rod at the end of the crushing roller (6) are clamped in the limiting grooves (17).

8. The sand making equipment for producing machine-made sand using mine tailings according to claim 1, characterized in that: The lifting structure includes a cross plate (11) rotatably connected between two support plates (10). A first electric push rod (12) is fixedly installed in the middle of the cross plate (11), and the movable end of the first electric push rod (12) is fixedly connected to the middle of the inverted U-shaped roller frame (5).

9. The sand making equipment for producing manufactured sand using mine tailings according to claim 1, characterized in that: The supporting component includes a second electric push rod (13), and both ends of the second electric push rod (13) are respectively rotatably connected to the bottom plate (1) and the abrasive hopper (4) through hinge seats.

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