A solid filling and conveying system

Abstract

This invention proposes a solid filling material feeding and transportation system, comprising: a raw material silo, a storage silo, and a conveying unit. The raw material silo is used to store solid raw materials. The storage silo includes a first storage section and a second storage section, which are connected. The first storage section is located above the second storage section and has a storage inlet. The second storage section has a storage outlet, which is located on the ground. The first storage section includes a buffer assembly connected to the side wall of the first storage section and placed within its cavity. The buffer assembly includes a buffer element, at least a portion of which is positioned along the drop path of the solid raw materials within the second storage section. The conveying unit includes a first conveyor and a second conveyor. The first conveyor is positioned between the raw material silo and the storage inlet, and the second conveyor is positioned at the storage outlet. This invention provides a solid filling material feeding and transportation system with good safety and high efficiency.

Description

Technical Field

[0001] This invention relates to the field of coal solid filling technology, specifically to a solid filling material feeding and transportation system. Background Technology

[0002] Currently, solid backfilling coal mining technology has been widely promoted and applied throughout the country. Among them, the main method for transporting solid backfilling materials from the surface to the mine is still the feeding and conveying system. This system can safely, efficiently, and continuously transport solid backfilling materials from the surface to the mine, ensuring the supply of materials to the solid backfilling coal mining face. Its conveying capacity exceeds 500t / h, and the conveying height ranges from tens to hundreds of meters.

[0003] In related technologies, solid filling material feeding and conveying systems can cause huge impacts on conveying and storage equipment during the material feeding process, such as conveying gangue. This can lead to pipeline blockage, equipment failure in severe cases, long repair times, and impact on production progress. Summary of the Invention

[0004] This invention aims to at least partially solve one of the technical problems in related technologies. To this end, embodiments of this invention propose a solid filling material feeding and transportation system that can reduce the impact of solid raw materials on the conveying equipment and ensure the safe operation of the equipment.

[0005] The solid filling and conveying system of this invention includes:

[0006] Raw material silo, which is used to store solid raw materials;

[0007] The storage bin includes a first storage section and a second storage section, which are connected. The first storage section is located above the second storage section. The first storage section has a storage inlet, and the second storage section has a storage outlet. The storage inlet is located on the ground. The first storage section includes a buffer assembly connected to the side wall of the first storage section and placed within a cavity of the first storage section.

[0008] The buffer assembly includes a buffer element that extends toward the second storage section, and at least a portion of the buffer element is positioned on the drop path of the solid raw material within the second storage section.

[0009] The conveying unit includes a first conveying component and a second conveying component. The first conveying component is placed between the raw material silo and the storage inlet to convey the solid raw materials in the raw material silo to the storage inlet. The second conveying component is placed at the storage outlet to convey the solid raw materials discharged from the storage outlet to the compaction equipment.

[0010] In this embodiment of the invention, the buffer component of the solid filling and feeding transportation system is set on the path of the solid raw material falling. When the solid raw material falls, the buffer component collides with the solid raw material, which reduces the falling speed of the solid raw material, thereby preventing the solid raw material from falling at a high speed and colliding with the equipment on the falling path, thus ensuring the safe operation of the equipment.

[0011] In some embodiments, the buffer assembly further includes a connecting base connected to the side wall of the first storage section, and the first end of the buffer member is connected to the connecting base. There are multiple buffer members, and the multiple buffer members are arranged at intervals along the length direction of the connecting base.

[0012] In some embodiments, the buffer is rotatable relative to the connecting base in a plane orthogonal to the thickness direction of the connecting base.

[0013] In some embodiments, the buffer assembly further includes a first elastic element defining a buffer gap between two adjacent buffer elements. There are multiple first elastic elements, one of which is located within one of the buffer gaps and adjacent to a first end of the buffer element, and one of the first elastic elements is connected to both of the adjacent buffer elements.

[0014] In some embodiments, the buffer assembly further includes a second elastic element, and the plurality of buffer elements are divided into a first buffer element and a second buffer element. In the length direction of the connecting base, the first buffer element is located on both sides of the second buffer element, and the second elastic element connects the first buffer element to the connecting base. The plurality of second elastic elements and the plurality of first elastic elements are arranged at intervals along the length direction of the connecting base.

[0015] In some embodiments, the cross-sectional area of ​​the buffer gradually decreases from bottom to top in a plane orthogonal to the height direction of the first storage section.

[0016] In some embodiments, the buffer includes a first segment and a second segment connected in sequence, the first segment being located above the second segment, and the stiffness of the first segment being less than the stiffness of the second segment.

[0017] In some embodiments, there are multiple buffer components, which are arranged at intervals along the height direction of the first storage section.

[0018] In some embodiments, in a plane orthogonal to the height direction of the first storage section, in two adjacent buffer assemblies, there is an angle between the extending directions of the two buffer members.

[0019] In some embodiments, the solid filling and conveying system of the present invention further includes a control section connected between the first storage section and the second storage section. The control section has an open state and a closed state. In the open state, the control section connects the first storage section and the second storage section. In the closed state, the control section blocks the first storage section and the second storage section. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the solid filling and conveying system according to an embodiment of the present invention.

[0021] Figure 2 This is a top view of the first storage section of the solid filling and conveying system according to an embodiment of the present invention.

[0022] Figure 3 yes Figure 2 The cross-sectional view at AA shown in the diagram.

[0023] Figure 4 This is a schematic diagram of the structure of the buffer component of the solid filling and conveying system according to an embodiment of the present invention.

[0024] Figure 5 yes Figure 4 An enlarged schematic diagram of B shown in the figure.

[0025] Figure label:

[0026] 1. Raw material warehouse

[0027] 2. Storage bin; 21. First storage section; 211. Storage inlet; 22. Second storage section; 221. Storage outlet; 23. Buffer assembly; 231. Buffer component; 231a. First buffer component; 231b. Second buffer component; 2311. First section; 2312. Second section; 24. Connecting base; 25. First elastic component; 26. Second elastic component.

[0028] 3. Conveying unit; 31. First conveying component; 32. Second conveying component;

[0029] 4. Control section. Detailed Implementation

[0030] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0031] As shown in the figure, the solid filling and transportation system of this invention includes: a raw material silo 1, a storage silo 2, and a conveying unit 3.

[0032] Raw material silo 1 is used to store solid raw materials. Storage silo 2 includes a first storage section 21 and a second storage section 22, which are connected. The first storage section 21 is located above the second storage section 22. The first storage section 21 has a storage inlet 211, and the second storage section 22 has a storage outlet 221. The storage inlet 211 is located on the ground.

[0033] Specifically, as shown in the figure, the first storage section 21 and the second storage section 22 are arranged vertically. The solid raw materials transported from the storage silo 2 enter the first storage section 21 and the second storage section 22 in sequence, and then are transported to the compaction equipment.

[0034] In other words, the first storage section 21 and the second storage section 22 serve both conveying and storage functions during the transport of solid raw materials. Preferably, as shown in the figure, the first storage section 21 and the second storage section 22 are uniformly cylindrical, and their radial dimensions are both larger than the dimensions of the conveying pipe, thereby achieving the storage function. It can be understood that when the compaction equipment is not in operation, the first storage section 21 and the second storage section 22 can be used to temporarily store solid raw materials so that when the compaction equipment resumes operation, the solid raw materials stored in the first storage section 21 and the second storage section 22 can be promptly transported to the compaction equipment, thereby improving work efficiency.

[0035] The first storage section 21 includes a buffer assembly 23, which is connected to the side wall of the first storage section 21 and is placed inside the cavity of the first storage section 21. The buffer assembly 23 includes a buffer element 231, which extends toward the second storage section 22, and at least a portion of the buffer element 231 is placed on the drop path of the solid raw material in the second storage section 22. The conveying unit 3 includes a first conveying element 31 and a second conveying element 32. The first conveying element 31 is placed between the raw material silo 1 and the storage inlet 211 to convey the solid raw material in the raw material silo 1 to the storage inlet 211. The second conveying element 32 is placed at the storage outlet 221 to convey the solid raw material discharged from the storage outlet 221 to the compaction equipment.

[0036] Specifically, as shown in the figure, the upper end of the buffer 231 is connected to the first storage section 21, and the lower end of the buffer 231 extends toward the second buffer section (i.e., the lower end of the buffer 231 is arranged inclined downwards).

[0037] It is understandable that since the buffer 231 is arranged at an angle downwards and is located on the path of the falling solid material, the solid material will collide with the buffer 231 during the falling process. However, the surface contour of solid materials (such as gangue) is generally irregular. If the buffer 231 is set horizontally, the solid material may accumulate on the buffer 231 after falling, which can easily cause blockage after long-term use. Therefore, arranging the buffer 231 at an angle downwards can facilitate the solid material to continue falling after colliding with the buffer 231, and prevent blockage in the first storage section 21.

[0038] It should be noted that the first conveyor 31 and the second conveyor 32 can be conveying devices such as belt pulleys or sprockets driven by motors.

[0039] In other words, the buffer component 23 of the solid filling and feeding transportation system of this embodiment of the invention is set on the path of the solid raw material falling. When the solid raw material falls, the buffer component 23 collides with the solid raw material, thereby reducing the falling speed of the solid raw material and preventing the solid raw material from falling at a high speed and colliding with the equipment on the falling path, thus ensuring the safe operation of the equipment.

[0040] In some embodiments, the buffer assembly 23 further includes a connecting base 24, which is connected to the side wall of the first storage section 21. The first end of the buffer member 231 is connected to the connecting base 24. There are multiple buffer members 231, which are arranged at intervals along the length direction of the connecting base 24.

[0041] Specifically, as shown in the figure, the side of the connecting base 24 that connects to the side wall of the first storage section 21 is arc-shaped to increase the connection area between the connecting base 24 and the first storage section 21 and improve the connection strength. Multiple buffer components 231 are arranged sequentially at intervals along the left-right direction.

[0042] Understandably, the larger the volume (i.e., the greater the mass) of the solid material, the greater the impact during its descent. The spaced arrangement of multiple buffer components 231 allows the buffer assembly 23 to intercept relatively large solid materials, causing the solid material's velocity to reach zero on the buffer component 231 before gradually accelerating downwards. This prevents the final velocity of the solid material from being too high and damaging the conveying equipment. Furthermore, relatively small solid materials can fall directly through the gap between adjacent buffer components 231, preventing the accumulation of solid materials and reducing the possibility of blockage.

[0043] Optionally, the buffer member 231 is rotatable relative to the connecting base 24 in a plane orthogonal to the thickness direction of the connecting base 24 (i.e., orthogonal to the left-right and front-back directions). As shown in the figure, the rear end of the buffer member 231 is rotatably connected to the connecting base 24, that is, the connecting base 24 is provided with a rotating shaft, the axial direction of the rotating shaft is consistent with the thickness direction of the connecting base 24, and the rear end of the buffer member 231 is provided with a shaft hole that mates with the rotating shaft, so the front end of the buffer member 231 can rotate relative to the connecting base 24 about the axial direction of the rotating shaft.

[0044] Understandably, when conveying solid raw materials, due to the large volume of the conveyed material, the solid raw material collides with the same position of the buffer 231 for a long time during the falling process, resulting in severe wear of the buffer 231 and an increased frequency of maintenance and replacement. Therefore, the buffer 231 is rotatably connected to the connecting base 24, so that when the buffer 231 collides with the solid raw material, it will swing back and forth under the impact force of the solid raw material, thereby increasing the contact area between the buffer 231 and the solid raw material and reducing the wear rate of the buffer 231.

[0045] In some embodiments, the buffer assembly 23 further includes a first elastic element 25, which defines a buffer gap between two adjacent buffer elements 231. There are multiple first elastic elements 25, one first elastic element 25 is placed in a buffer gap and adjacent to the first end of the buffer element 231, and one first elastic element 25 is connected to two adjacent buffer elements 231.

[0046] Specifically, as shown in the figure, the first elastic element 25 is connected to the rear end of the buffer element 231. During use, before the solid material begins to fall, the first elastic element 25 is in its initial state. After the solid material falls and collides with the buffer element 231, the buffer element 231 is deflected by the force, and the first elastic element 25 is compressed or stretched (i.e., under stress). At this time, the buffer element 231 tends to return to its initial state under the action of the elastic force of the first elastic element 25. Thus, when the impact force on the buffer element 231 is less than the elastic force of the first elastic element 25, the first elastic element 25 will return to its initial state, thereby avoiding a large angle of deflection of the buffer element 231 after receiving the impact of the solid material.

[0047] In some embodiments, the buffer assembly 23 further includes a second elastic member 26. The plurality of buffer members 231 are divided into a first buffer member 231a and a second buffer member 231b. In the length direction of the connecting base 24, the first buffer member 231a is located on both sides of the second buffer member 231b. The second elastic member 26 connects the first buffer member 231a and the connecting base 24, and the plurality of second elastic members 26 and the plurality of first elastic members 25 are arranged at intervals along the length direction of the connecting base 24.

[0048] Specifically, as shown in the figure, there are two first buffers 231a, which are located on the left and right sides of the second buffer 231b respectively. One end of the second elastic member 26 is connected to the first buffer 231a, and the other end of the second elastic member 26 is connected to the connecting base 24.

[0049] As can be understood, as shown in the figure, in the initial state, the first buffer 231a and the second buffer 231b are arranged in parallel, and the first buffer 231a is arranged in parallel with the left and right side walls of the connecting base 24. After the second elastic element 26 is deformed, it tends to return to the initial state. Thus, during the falling process of the solid material, the elastic force of the first elastic element 25 and the second elastic element 26 can enable the buffer 231 to return to the initial position as soon as possible after it deflects, so as to avoid the buffer 231 reducing the contact area with the solid material due to excessive deflection angle, and also to ensure that the buffer 231 can always remain on the falling path of the solid material.

[0050] It should be noted that the first elastic element 25 and the second elastic element 26 can be springs, and the first elastic element 25 and the second elastic element 26 have the same specifications.

[0051] Preferably, in a plane orthogonal to the height direction of the first storage section 21, the cross-sectional area of ​​the buffer member 231 gradually decreases from bottom to top. As shown in the figure, the cross-sectional profile of the buffer member 231 is generally triangular, which reduces the contact area between the solid raw material and the buffer member 231. Furthermore, the left and right sidewalls of the buffer member 231 are arranged at an incline, which also facilitates the solid raw material to slide down along the sidewalls of the buffer member 231, avoiding blockage.

[0052] Furthermore, if the solid material falling first is held in the buffer gap, it can overcome the elastic force of the second elastic member 26 under the impact of the solid material falling later, so that the solid material falling first breaks through the buffer gap. This allows the buffer member 231 to not only reduce the falling speed of the solid material, but also prevent the solid material from getting stuck.

[0053] In some embodiments, the buffer 231 includes a first segment 2311 and a second segment 2312 connected in sequence, the first segment 2311 being located above the second segment 2312, and the stiffness of the first segment 2311 being less than the stiffness of the second segment 2312.

[0054] Understandably, the first segment 2311 can be made of a soft material, such as soft rubber; the second segment 2312 can be made of a harder material, such as steel plate. In other words, the second segment 2312 can provide an installation platform for the first segment 2311, and the soft material used in the first segment 2311 can better absorb the impact of solid raw materials.

[0055] Preferably, there are multiple buffer components 23, and the multiple buffer components 23 are arranged along the height direction of the first storage section 21 (e.g., Figure 1 Arranged at intervals in the vertical direction.

[0056] In some embodiments, in a plane orthogonal to the height direction of the first storage section 21, in two adjacent buffer assemblies 23, the extension directions of the two buffer members 231 have an included angle.

[0057] It is understandable that, as shown in the figure, the angle between the extending directions of the buffer components 231 is α, so 0° < α < 180°. That is to say, when the angle α is 0° or 180°, the gap between the two buffer components 23 arranged vertically will overlap, causing the solid raw material to fall directly through the buffer gap between the buffer components 231, thus failing to achieve the buffering effect of the buffer components 23. Therefore, 0° < α < 180° can ensure that the solid raw material collides with the buffer component 231 as much as possible, thereby achieving the buffering effect. In some embodiments, the solid filling and feeding transportation system of this embodiment of the invention further includes a control section, which is connected between the first storage section and the second storage section. The control section has an open state and a closed state. In the open state, the control section connects the first storage section and the second storage section. In the closed state, the control section blocks the first storage section and the second storage section.

[0058] Specifically, as shown in the figure, a ball valve is installed on the control section. When the first or second storage section fails, the ball valve on the control section can be closed to suspend the conveying of solid raw materials, thereby facilitating timely maintenance of the faulty equipment.

[0059] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0060] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0061] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0062] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0063] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0064] Although the above embodiments have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Any changes, modifications, substitutions and variations made to the above embodiments by those skilled in the art are within the protection scope of the present invention.

Claims

1. A solid filling and conveying system, characterized in that, include: Raw material silo, which is used to store solid raw materials; The storage bin includes a first storage section and a second storage section, which are connected. The first storage section is located above the second storage section. The first storage section has a storage inlet, and the second storage section has a storage outlet. The storage inlet is located on the ground. The first storage section includes a buffer assembly connected to the side wall of the first storage section and placed within a cavity of the first storage section. The buffer assembly includes a buffer member, a connecting base, a first elastic member, and a second elastic member. The buffer member extends toward the second storage section, and at least a portion of the buffer member is positioned on the drop path of the solid raw material within the second storage section. The connecting base is connected to the side wall of the first storage section. The first end of the buffer member is connected to the connecting base. There are multiple buffer members, which are spaced apart along the length direction of the connecting base. In a plane orthogonal to the thickness direction of the connecting base, the buffer member is rotatable relative to the connecting base. A buffer gap is defined between two adjacent buffer members. There are multiple first elastic members, one of which is placed within a buffer gap and adjacent to the first end of the buffer member. One first elastic member is connected to both adjacent buffer members. The multiple buffer members are divided into first buffer members and second buffer members. In the length direction of the connecting base, the first buffer members are located on both sides of the second buffer members. The second elastic members connect the first buffer members and the connecting base. The multiple second elastic members and the multiple first elastic members are spaced apart along the length direction of the connecting base. The conveying unit includes a first conveying component and a second conveying component. The first conveying component is placed between the raw material silo and the storage inlet to convey the solid raw materials in the raw material silo to the storage inlet. The second conveying component is placed at the storage outlet to convey the solid raw materials discharged from the storage outlet to the compaction equipment.

2. The solid filling and conveying system according to claim 1, characterized in that, In a plane orthogonal to the height direction of the first storage section, the cross-sectional area of ​​the buffer gradually decreases from bottom to top.

3. The solid filling and conveying system according to claim 2, characterized in that, The buffer includes a first segment and a second segment connected in sequence, with the first segment located above the second segment and the stiffness of the first segment being less than that of the second segment.

4. The solid filling and conveying system according to claim 3, characterized in that, There are multiple buffer components, and the multiple buffer components are arranged at intervals along the height direction of the first storage section.

5. The solid filling and conveying system according to claim 4, characterized in that, In a plane orthogonal to the height direction of the first storage section, in two adjacent buffer assemblies, there is an angle between the extending directions of the two buffer members.

6. The solid filling and conveying system according to claim 5, characterized in that, It also includes a control section connected between the first storage section and the second storage section. The control section has an open state and a closed state. In the open state, the control section connects the first storage section and the second storage section. In the closed state, the control section blocks the first storage section and the second storage section.

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