Fine coal slime unpowered discharge device

Abstract

The application discloses a kind of fine coal slurry unpowered discharge device, including pedestal and for carrying vertical blanking discharge plate, the discharge plate is rotatably connected to the pedestal, and elastic member is also provided between the discharge plate and the pedestal, and fine coal slurry vertical drop on the discharge plate makes the discharge plate swing.The fine coal slurry vertical drop on the discharge plate provided by the application, since the discharge plate is rotatably connected to the pedestal, the gravity generated by the fine coal slurry vertical drop makes the discharge plate swing, one end of the discharge plate swings downward, so that the fine coal slurry falls onto the conveyor belt of the lower conveying mechanism, at this time, the elastic member is used to maintain the discharge plate in an inclined state when not subjected to external force and repeatedly swing when subjected to impact, so that the fine coal slurry does not adhere to the discharge plate.

Description

Technical Field

[0001] This invention relates to the field of coal slime unloading, and specifically to a non-powered unloading device for fine coal slime. Background Technology

[0002] As is generally known, coal washing plants typically use a combined heavy medium-flotation process to separate clean coal, middlings, and gangue. The coarse fine coal particles separated by heavy medium then enter the flotation process to select the final clean coal slime. The clean coal slime is first stored in a hopper and then transported from the hopper to the subsequent processes via a conveying mechanism.

[0003] Existing patents, such as the one with authorization announcement number CN205784353U and authorization announcement date of July 2016, entitled "A High-Efficiency, Energy-Saving, and Environmentally Friendly Coal Slime Dryer," disclose a high-efficiency, energy-saving, and environmentally friendly coal slime dryer. Its structure includes a dispersing device, a conveyor, a hopper, a feeder, a heat source, a heat conductor, a conveying pipe, a drying drum, a support base, a discharge port, a cyclone discharge port, a bag filter, an induced draft fan, and an exhaust pipe. The left side of the drying drum has a conveying pipe, with the feeder and heat source connected to both sides. The heat source is connected to the conveying pipe via a heat conductor. The feeder is connected to the hopper, and a conveyor is located above the hopper. The conveyor is connected to the dispersing device. The right side of the drying drum has a discharge port. The bottom of the bag filter has a cyclone discharge port connected to the discharge port. The top of the bag filter is connected to an induced draft fan and an exhaust pipe. Its purpose is to save energy and reduce environmental pollution in mining areas.

[0004] In the prior art, after the conveyor transports the fine coal slurry into the hopper, the fine coal slurry contains a large amount of water and has high viscosity. As a result, the unloading structure of the hopper is often blocked due to the adhesion of a large amount of fine coal slurry. Summary of the Invention

[0005] The purpose of this invention is to provide a non-powered unloading device for fine coal slime to overcome the above-mentioned shortcomings in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A non-powered unloading device for fine coal slime includes a base and a unloading plate for bearing vertically falling material. The unloading plate is rotatably connected to the base, and an elastic element is also provided between the unloading plate and the base. When the fine coal slime falls vertically and hits the unloading plate, the unloading plate swings.

[0008] The above-mentioned unpowered unloading device for refined coal slime includes a first section and a second section, which are rotatably connected. The refined coal slime falls vertically onto the second section of the unloading plate through the discharge port.

[0009] The aforementioned non-powered unloading device for refined coal slime has a linkage component on the unloading plate, which links the first section and the second section.

[0010] The aforementioned non-powered unloading device for refined coal slime includes a linkage assembly comprising a first connecting rod, a second connecting rod, and a third connecting rod that are rotatably connected in sequence. The other end of the first connecting rod is rotatably connected to the second section, and the other end of the third connecting rod is rotatably connected to the first section.

[0011] The aforementioned unpowered unloading device for refined coal slime allows for relative sliding between the first and second sections.

[0012] In the aforementioned non-powered unloading device for refined coal slime, a transverse shaft is provided in the middle of the second connecting rod, and the transverse shaft is slidably connected inside the vertical trough.

[0013] The above-mentioned unpowered unloading device for refined coal slime includes an upper section and a lower section as the first section of the unloading plate, and the other end of the third connecting rod is rotatably connected to the separation position of the upper and lower sections.

[0014] The above-mentioned unpowered unloading device for fine coal slime has a protrusion and a load-bearing block on the back of the unloading plate. The protrusion is connected to the load-bearing block through a first elastic element. The load-bearing block has a sliding stroke on the unloading plate to expand the swing amplitude of the unloading plate.

[0015] In the aforementioned non-powered unloading device for refined coal slime, an extension rod is provided on one of the connecting rods, and a sliding position is provided on the sliding stroke of the load block so that the extension rod contacts the load block.

[0016] In the aforementioned non-powered unloading device for fine coal slime, one end of the first connecting rod is connected to the unloading plate via a strip groove, and the other end is provided with a second elastic element. The elastic force generated by the second elastic element is used for the first connecting rod to slide within the strip groove.

[0017] In the above technical solution, the present invention provides a non-powered unloading device for fine coal slurry. The fine coal slurry falls vertically onto the unloading plate. Since the unloading plate and the base are rotatably connected, the gravity generated by the vertical fall of the fine coal slurry causes the unloading plate to swing. One end of the unloading plate will swing downward, causing the fine coal slurry to fall onto the conveyor belt of the conveying mechanism below. At this time, the elastic element is used to maintain the unloading plate in an inclined state when it is not subjected to external force and to swing repeatedly when it is impacted. In this way, the fine coal slurry will not stick to the unloading plate. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 This is a schematic diagram of the structure of the non-powered unloading device for refined coal slime provided in an embodiment of the present invention;

[0020] Figure 2 A schematic diagram of a non-powered unloading device for refined coal slime provided in another embodiment of the invention;

[0021] Figure 3 A simplified structural diagram of the unloading plate of a non-powered unloading device for fine coal slime provided in another embodiment of the invention;

[0022] Figure 4 A simplified structural diagram of the first section of the unloading plate of the non-powered unloading device for fine coal slime provided in another embodiment of the invention;

[0023] Figure 5 The rear view of the first section of the unloading plate of the non-powered unloading device for fine coal slime provided in another embodiment of the invention.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Base; 2. Unloading plate; 3. Discharge port; 4. Linkage assembly; 5. First connecting rod; 6. Third connecting rod; 7. Second connecting rod; 8. Rotating shaft; 9. Baffle; 10. Vertical groove; 11. Horizontal shaft; 13. Rotating mechanism; 14. Impact rod; 15. First section; 16. Second section; 17. Upper section; 18. Lower section; 19. Elastic element; 20. Weight block; 21. First elastic element; 22. Protrusion; 23. Extension rod; 24. Second elastic element. Detailed Implementation

[0026] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0027] Reference Figure 1-5 The present invention provides a non-powered unloading device for fine coal slime, including a base 1 and an unloading plate 2 for bearing vertically falling material. The unloading plate 2 is rotatably connected to the base 1. An elastic element 19 is also provided between the unloading plate 2 and the base 1. When the fine coal slime falls vertically and hits the unloading plate 2, the unloading plate 2 swings.

[0028] Specifically, such as Figure 1As shown, the base 1 is a supporting structure that supports the unloading plate 2. The unloading plate 2 is a plate, preferably arc-shaped. Baffles 9 are also provided on both sides of the unloading plate 2 to prevent the falling coal slurry from leaking out from both sides. The unloading plate 2 is rotatably connected to the base 1 via a rotating shaft 8, which divides the unloading plate 2 into a first section 15 and a second section 16. The unloading plate 2 is arranged at an angle, with the first section 15 being the upper part and the second section 16 being the lower part used to receive the coal slurry. The hopper's outlet 3 is located directly above the second section 16. The fine coal slurry in the hopper falls vertically through the discharge port 3 and hits the second section 16 of the discharge plate 2. A conveying mechanism, such as a conveyor belt, is provided below the second section 16 to receive the fine coal slurry falling from the discharge plate 2. An elastic element 19 is also provided between the discharge plate 2 and the base 1. The elastic element 19 can be a spring, with its two ends connected to the base 1 and the discharge plate 2, respectively. The elastic element 19 is used to maintain the discharge plate 2 in an inclined state when it is not subjected to external force and to swing repeatedly when it is impacted. The probability of fine coal slurry adhesion is reduced by the repeated swinging. Preferably, the elastic element 19 is a torsion spring provided on the rotating shaft 8.

[0029] This invention provides a non-powered unloading device for fine coal slurry. The fine coal slurry falls vertically onto the unloading plate 2. Since the unloading plate 2 is rotatably connected to the base 1, the gravity generated by the vertical fall of the fine coal slurry causes the unloading plate 2 to swing. One end of the unloading plate 2 swings downward, causing the fine coal slurry to fall onto the conveyor belt of the conveying mechanism below. At this time, the elastic element 19 is used to maintain the unloading plate 2 in an inclined state when it is not subjected to external force and to swing repeatedly when it is impacted, thereby reducing the probability of the fine coal slurry sticking to the unloading plate 2.

[0030] Another embodiment provided by the present invention is as follows: Figure 3As shown, the first section 15 of the unloading plate 2 includes an upper section 17 and a lower section 18. The upper section 17 and the lower section 18 are rotatably connected by a rotating mechanism 13, such as a rotating shaft. The upper section 17 and the lower section 18 are two independent plates, while the lower section and the second section are an integral structure. The upper section 17 is provided with a strip-shaped hole, and the lower section 18 is provided with a rotating shaft. The rotating shaft passes through the strip-shaped hole, allowing the upper section 17 and the lower section 18 to be rotatably connected. At this time, the rotating shaft can both rotate and move within the strip-shaped hole. The design of the strip-shaped hole allows the upper section 17 and the lower section 18 of the unloading plate 2 to have a certain arc-shaped movement range, rather than just relative rotation. At the same time, the upper section 17 of the unloading plate 2 is provided with an impact member 14. Preferably, the impact member 14 is a cuboid rod. After the fine coal slime falls vertically onto the second section 16 of the unloading plate 2, it is driven to unload through the linkage component 4. The upper section 17 of the first segment 15 of plate 2 moves to the side and upward. As a result, the impact rod 14 on the unloading plate 2 will hit the discharge port 3. The clean coal slurry in the discharge port 3 also contains a lot of water, which may cause the clean coal slurry to stick to the wall of the discharge port 3. The purpose of setting the impact rod 14 is to drive the impact rod 14 to move towards the discharge port 3 and hit the discharge port 3 while the unloading plate 2 moves upward. This causes the clean coal slurry on the wall of the discharge port 3 to be vibrated and fall onto the unloading plate 2. The cooperation between the strip hole and the rotating shaft makes the movement of the upper section 17 relative to the movement of the lower section 18 not fixed. Different masses of clean coal slurry fall onto the second section 16, causing the swing amplitude of the second section 16 to be different. Thus, after the impact rod 14 hits the discharge port 3, it will not completely restrict the second section 16 through the upper section 17. At this time, the movement of the rotating shaft in the strip hole can allow the second section 16 to continue to swing downward.

[0031] In this embodiment, as Figure 2As shown, the unloading plate 2 is also equipped with a linkage assembly 4, which includes a first link 5, a second link 7, and a third link 6 that are rotatably connected in sequence. The second link 7, the third link 6, and the first link 5 are all rod-shaped. The third link 6 is connected to the first link 5 via the second link 7. The three are rotatably connected in sequence. The other end of the third link 6 is rotatably connected to the upper section 17 of the first section 15 of the unloading plate 2. The other end of the first link 5 is rotatably connected to the second section 16 of the unloading plate 2. The third link 6 is rotatably connected to the upper section 17 of the unloading plate 2 via a rotating shaft. The base 1 is also equipped with... A vertical groove 10 is provided with a horizontal shaft 11 in the middle of the second connecting rod 7. The horizontal shaft 11 is slidably connected in the vertical groove 10, that is, the second connecting rod 7 is limited on the horizontal shaft 11. Thus, when the first connecting rod 5 swings downward, it will drive the end of the second connecting rod 7 near the first connecting rod 5 to move downward. At this time, due to the limitation of the horizontal shaft 11, the end of the second connecting rod 7 near the third connecting rod 6 moves upward. The upward movement of the end of the third connecting rod 6 drives the third connecting rod 6 to move upward. The upward movement of the third connecting rod 6 drives the upper section 17 of the first section 15 of the unloading plate 2 to move upward. When the clean coal slurry falls onto the second section 16 of the discharge plate 2, the gravitational potential energy of the falling clean coal slurry is converted into kinetic energy, and the second section 16 of the discharge plate 2 will move downward. Since the first section 15 and the second section 16 of the discharge plate 2 are rotatably connected, the first section 15 of the discharge plate 2 will move upward. At this time, the downward swing of the second section 16 of the discharge plate 2 drives the first connecting rod 5 to move downward. The downward movement of the first connecting rod 5 drives the second connecting rod 7 to swing. The second connecting rod 7 is slidably connected to the vertical groove 10 through the transverse shaft 11, thus driving the third connecting rod 6 to move upward. The upward movement of the third connecting rod 6 drives the first section 15 of the discharge plate 2 to move upward. During the movement stroke of the discharge plate 2, the upward movement of the first section 15 reaches its maximum. At this time, when the impact rod 14 on the discharge plate 2 hits the discharge port 3, the impact rod 14 will resist... At the discharge port 3, the upper section 17 of the discharge plate 2 is limited by the impact rod 14. Since the third connecting rod 6 is rotatably connected to the upper section 17 of the discharge plate 2 via the rotating shaft, the lower section 18 of the discharge plate 2 will continue to move upward while the third connecting rod 6 still has an upward force. Since the first section 15 and the second section 16 of the discharge plate 2 are rotatably connected, the part of the second section 16 of the discharge plate 2 located below the rotating shaft can continue to move downward without being limited by the impact rod 14. Thus, when the first section 15 of the discharge plate 2 reaches its maximum upward movement, due to the slotted hole between the upper section 17 and the lower section 18, the downward movement of the second section 15 of the discharge plate 2 increases, and the tilt of the second section 15 of the discharge plate 2 also increases. Thus, the fine coal slurry falls more directly into the conveying mechanism.

[0032] It should be noted that the aforementioned upward and downward movements are not vertical, but rather refer to the overall orientation. For example, the first link 5 is actually a composite movement of swinging and downward motion. Furthermore, theoretically, the downward movement of the second segment 16 could cause the linkage component 4 and the upper segment 17 to move downwards, potentially causing them to jam. In this case, a certain amount of friction is needed between the horizontal shaft 11 and the vertical groove 10. If they are in a transition fit, the horizontal shaft 11 will not slide freely within the vertical groove 10. During the initial movement of the linkage component 4, the horizontal shaft 11 will primarily rotate, thus driving the second link 7 to swing rather than move vertically downwards. Only when the swing is completely jammed will it be forced to move up and down. The same applies to the upward movement during the reset stroke.

[0033] In another embodiment provided by the present invention, such as Figure 4-5As shown, a weight block 20 is slidably disposed on the back side of the second section 16 of the unloading plate (referring to the other side of the plate surface where the fine coal slime falls, i.e., the side facing the ground). A groove is provided on the back side of the second section 16, and the weight block 20 is slidably connected to the groove. The sliding also causes the weight block 20 to be suspended on the second section 16, which can be achieved by a sliding structure similar to that of a suspended conveyor line. Preferably, the weight block 20 is a cuboid. A protrusion 22 is provided on the back side of the second section 16 of the unloading plate. The protrusion 22 is connected to the weight block 20 through a first elastic element 21. Preferably, the first elastic element is a spring. Thus, the contraction of the first elastic element 21 on the protrusion causes the weight block 20 to have a sliding stroke on the back side of the second section 16 of the unloading plate. The effect of this is that when the second section 16 tilts, the component of the weight of the weight block 20 along the tilting direction of the second section 16 increases, which will increase the swing amplitude of the unloading plate 2, thereby acting as a lever.The load block 20 may prevent the unloading plate 2 from fully resetting, thus preventing the unloading plate 2 from maintaining a high overall height. In a further embodiment, a slot is provided on the back of the second section 16 of the unloading plate. The connecting shaft at the upper end of the first connecting rod 5 is also connected to the second section 16 through the slot. That is, the first connecting rod 5 can both rotate and move relative to the second section 16, meaning that the first connecting rod 5 can slide within the slot. An extension rod 23 is provided on one side of the first connecting rod 5. Preferably, the extension rod 23... The rod is curved. In the initial state before any coal slurry falls, the curved rod is parallel to the second section 16. Simultaneously, a second elastic element 24 is provided at the lower end of the first connecting rod 5. Preferably, the second elastic element 24 is a spring. When the coal slurry falls vertically onto the second section 16 of the discharge plate 2, the second section 16 moves downwards. At this time, the load block 20 slides downwards and presses against the first elastic element 21. This causes the sliding connection to cause the first connecting rod 5 to swing, and the first connecting rod 5 also slides within the strip groove. When small coal slurry pieces fall onto the second section 16, the second... Segment 16 will move downwards. At this time, the load block 20 will also compress the first elastic element 21 and move downwards. Since the load block 20 has a certain weight, it will cause the unloading plate 2 to swing downwards. That is, the tilt angle of the second segment 16 of the unloading plate 2 will increase, increasing the swing amplitude of the unloading plate 2. If the swing amplitude of the unloading plate 2 is small, the bottom end of the second elastic element 24 will not hit the base 1. When a larger piece of refined coal slurry falls onto the second segment 16, due to the large weight of the refined coal slurry, the swing amplitude of the second segment 16 will increase, and the second segment 16 will also cause the first connecting rod 5 to move downwards. With a large amplitude of movement, the second elastic element 24 at the other end of the first connecting rod 5 will touch the bottom surface and generate an elastic force. The second elastic element 24 will have an upward elastic force, causing the first connecting rod 5 to slide in the strip groove. That is, the upper end of the first connecting rod 5 will slide upward in the strip groove. At this time, the extension rod 23 will contact the load block 20 and assist in driving the load block 20 back to its initial position while sliding upward. At the same time, the stored force of the second elastic element 24 also gives the unloading plate 2 a larger rebound amplitude. This setting also completes the reset of the second section 16. This forms two different working states. When the mass of the fine coal slurry is small and the second elastic element 24 is insufficient to impact the base 1, the load block 20 will increase the swing amplitude of the unloading plate 2. When the mass of the fine coal slurry is large and the second elastic element 24 is sufficient to impact the base, the energy stored by the impact amplitude and the movement of the first connecting rod 5 will cause the load block 20 to reset, so as to achieve a complete cycle and prevent the load block 20 from being able to go down but not up.

[0034] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A non-powered unloading device for fine coal slime, comprising a base and a unloading plate for supporting vertically falling material, characterized in that, The unloading plate is rotatably connected to the base, and an elastic element is also provided between the unloading plate and the base. When the clean coal slurry falls vertically and hits the unloading plate, the unloading plate swings. The unloading plate includes a first section and a second section, which are rotatably connected. The fine coal slurry falls vertically onto the second section of the unloading plate through the discharge port. The unloading plate is provided with a linkage assembly, which links the first section and the second section; the linkage assembly includes a first link, a second link and a third link that are rotatably connected in sequence, and the third link is connected to the first link through the second link; The back of the unloading plate is provided with a protrusion and a load-bearing block. The load-bearing block has a sliding stroke on the unloading plate to increase the swing amplitude of the unloading plate. An extension rod is provided on one side of the first connecting rod, and has a sliding position on the sliding stroke of the load-bearing block so that the extension rod contacts the load-bearing block. One end of the first connecting rod is connected to the unloading plate through a strip groove, and the other end is provided with a second elastic element. The elastic force generated by the second elastic element is used for the first connecting rod to slide in the strip groove. When the mass of the clean coal slurry is small enough that the second elastic element is insufficient to impact the base, the load block will increase the swing amplitude of the unloading plate. When the mass of the clean coal slurry is large enough that the second elastic element is sufficient to impact the base, the load block will reset due to the energy stored in the impact amplitude and the movement of the first connecting rod.

2. The non-powered unloading device for refined coal slime according to claim 1, characterized in that, One end of the third link is rotatably connected to the first segment.

3. The non-powered unloading device for refined coal slime according to claim 2, characterized in that, The first segment and the second segment can slide relative to each other.

4. The non-powered unloading device for refined coal slime according to claim 2, characterized in that, The second connecting rod has a transverse shaft in the middle, and the base has a vertical groove in which the transverse shaft is slidably connected.

5. The non-powered unloading device for refined coal slime according to claim 1, characterized in that, The protrusion is connected to the load-bearing block via a first elastic element.

Images