A high-efficiency mixing equipment for polymer materials used in coal mine rock reinforcement

Abstract

This disclosure relates to the technical field of mixing equipment. One embodiment of this disclosure provides a high-efficiency mixing device for polymer materials used in coal mine rock reinforcement. The device includes: an equipment frame, a slide rail, and a mixing shell. The slide rail is fixed annularly on the equipment frame, and the mixing shell is slidably connected to the slide rail. A top plate is fixed on the equipment frame, and its top covers the upper end of the mixing shell. A stirring assembly is mounted on the top plate, and an auxiliary discharge assembly is mounted on both the top plate and the equipment frame. The stirring assembly includes a circular opening on the surface of the top plate. A movable plate is disposed inside the circular opening and is fitted onto a bracket. Buffer springs are fitted at both the upper and lower ends of the bracket, and a vibration motor is fixed to the top of the movable plate. This technical solution solves the problem in the prior art where existing equipment often uses a single-shaft stirring structure with an unreasonable arrangement of stirring blades, resulting in vortex dead zones in the mixing chamber and preventing sufficient contact between two or more polymer substrates.

Description

Technical Field

[0001] The embodiments disclosed herein relate to the technical field of mixing equipment, and more specifically, to a high-efficiency mixing equipment for polymer materials used in coal mine rock reinforcement. Background Technology

[0002] In coal mining, rock mass reinforcement is a crucial step in ensuring operational safety, and the mixing quality of polymer materials directly affects the reinforcement effect. Currently, there are two major problems with polymer mixing equipment used in coal mines:

[0003] Regarding mixing effectiveness, existing equipment mostly employs a single-shaft stirring structure with an unreasonable arrangement of stirring blades. This results in vortex dead zones within the mixing chamber, preventing sufficient contact between two or more polymer substrates. Consequently, the solidified rock reinforcement layer exhibits uneven strength, leading to localized cracking and detachment, severely threatening the safety of downhole operations. Furthermore, some equipment lacks adjustable stirring speeds, resulting in insufficient mixing of high-viscosity materials and splashing waste of low-viscosity materials.

[0004] In terms of discharge efficiency, the discharge port design of traditional equipment is simple, mostly a straight cylindrical structure with a fixed diameter. Since the mixed polymer material has a certain viscosity, it is easy to accumulate and block the inner wall of the discharge port. Moreover, the flow rate cannot be accurately controlled during the discharge process, often resulting in excessive material overflow or supply interruption, which affects the continuity of reinforcement work and increases construction time and cost.

[0005] Therefore, the development of a polymer material mixing equipment for coal mine rock reinforcement that can improve mixing uniformity and increase output efficiency has become an urgent need in the industry. Utility Model Content

[0006] To overcome the above-mentioned defects, the embodiments of this disclosure provide a high-efficiency mixing device for polymer materials used in coal mine rock reinforcement, which solves the technical problem that existing equipment mostly adopts a single-shaft stirring structure and has an unreasonable arrangement of stirring blades, resulting in the formation of vortex dead zones in the mixing chamber and the inability of two or more polymer substrates to fully contact each other.

[0007] According to one aspect, at least one embodiment of this disclosure provides a high-efficiency mixing device for polymer materials used in coal mine rock reinforcement, comprising:

[0008] The equipment rack, slide rail, and hybrid housing are provided, wherein the slide rail is fixed in a ring shape on the equipment rack, and the hybrid housing is slidably connected to the slide rail.

[0009] The equipment includes a top plate and a stirring assembly. The top plate is fixed to the equipment frame and covers the upper end of the mixing shell. The top plate is offset from the axis of the mixing shell, and the stirring assembly is mounted on the top plate.

[0010] An auxiliary discharge assembly is disposed on the top plate and the equipment frame;

[0011] The stirring assembly includes a circular opening on the surface of the top plate. Several brackets are provided at the bottom of the top plate. A movable plate is provided inside the circular opening. The movable plate is fitted onto the outside of the brackets. Buffer springs are fitted at both the upper and lower ends of the brackets. A vibration motor is fixed to the top of the movable plate.

[0012] As a further technical solution, a number of stirring racks are rotatably connected inside the movable plate, and each stirring rack is provided with a driven gear at its upper end. A drive gear that is electrically driven to rotate is provided on the top of the movable plate, and the drive gear meshes with the driven gear.

[0013] As a further technical solution, a drive wheel controlled by a motor is installed at the bottom of the equipment frame, and an annular protrusion is provided at the bottom of the mixing shell, with the side surface of the annular protrusion in contact with the surface of the drive wheel.

[0014] As a further technical solution, the auxiliary discharge assembly includes a central shaft, which is rotatably connected to the top plate. The central shaft is driven to rotate by electricity, and a spiral blade is provided on the central shaft. The central shaft and the spiral blade extend into the discharge section at the bottom of the equipment frame.

[0015] As a further technical solution, a fixing plate is provided at the bottom of the equipment frame, a cylinder is installed on the fixing plate, and a sealing cover is connected to the output end of the cylinder. The sealing cover is attached to the discharge opening at the bottom of the mixing shell.

[0016] As a further technical solution, a receiving cover is provided at the bottom of the equipment frame, and a discharge pipe is provided on the side surface of the receiving cover. An electric auger is provided inside the discharge pipe and the receiving cover.

[0017] As a further technical solution, the inner diameter of the connection part between the movable plate and the bracket assembly is larger than the diameter of the bracket.

[0018] As a further technical solution, the inner bottom surface of the hybrid outer shell slopes towards the center.

[0019] The beneficial effects of the embodiments disclosed herein are as follows:

[0020] In this disclosure, the stirring assembly solves the problems of dead zones and insufficient mixing inherent in traditional single-shaft stirring by utilizing the synergistic effect of vibration and rotation. A vibrating motor drives a movable plate to vibrate, and with the elastic support of a buffer spring, this breaks up the agglomeration of polymer materials. The stirring frame rotates under the drive gear, creating shear force with the opposite rotation of the mixing shell, enhancing the contact and mixing between materials. The off-center design of the top plate expands the stirring range, avoids eddy dead zones, allows for the full fusion of various substrates, improves mixing uniformity, ensures stable material properties during rock reinforcement, and reduces reinforcement defects caused by uneven mixing. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.

[0022] Figure 1 This is a schematic diagram of a structure in one embodiment of the present disclosure;

[0023] Figure 2 This is an isometric drawing of the present disclosure;

[0024] Figure 3 This is a cross-sectional view of the present disclosure;

[0025] Figure 4 Appendix to this disclosure Figure 1 Enlarged view of part A in the middle;

[0026] In the diagram: 1. Equipment frame; 2. Slide rail; 3. Mixing shell; 4. Top plate; 5. Mixing assembly; 5-1. Circular opening; 5-2. Bracket; 5-3. Movable plate; 5-4. Buffer spring; 5-5. Vibration motor; 5-6. Mixing rack; 5-7. Driven gear; 5-8. Drive gear; 5-9. Drive wheel; 5-10. Annular protrusion; 6. Auxiliary discharge assembly; 6-1. Central shaft; 6-2. Spiral blades; 6-3. Fixed plate; 6-4. Cylinder; 6-5. Sealing cover; 6-6. Material receiving cover; 6-7. Discharge pipe; 6-8. Spiral auger. Detailed Implementation

[0027] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.

[0028] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0029] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0030] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0031] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, 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 disclosure.

[0032] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0033] like Figures 1-4 As shown, it illustrates a high-efficiency mixing device for polymer materials used in coal mine rock reinforcement according to an embodiment of this disclosure, comprising:

[0034] The equipment frame 1, the slide rail 2, and the mixing housing 3 are provided. The slide rail 2 is fixed in a ring shape on the equipment frame 1, and the mixing housing 3 is slidably connected to the slide rail 2.

[0035] The top plate 4 and the stirring assembly 5 are fixed on the equipment frame 1. The top of the top plate 4 covers the upper end of the mixing shell 3. The top plate 4 is offset from the axis of the mixing shell 3. The stirring assembly 5 is disposed on the top plate 4.

[0036] Auxiliary discharge component 6 is disposed on the top plate 4 and the equipment frame 1;

[0037] The stirring assembly 5 includes a circular opening 5-1, which is formed on the surface of the top plate 4. Several brackets 5-2 are provided at the bottom of the top plate 4. A movable plate 5-3 is provided inside the circular opening 5-1 and is fitted onto the outside of the brackets 5-2. Buffer springs 5-4 are fitted at both the upper and lower ends of the brackets 5-2. A vibration motor 5-5 is fixed to the top of the movable plate 5-3. Several stirring racks 5-6 are rotatably connected inside the movable plate 5-3. Each stirring rack 5-6 is provided with a driven gear 5-7 at its upper end. A drive gear 5-8, which is driven by electricity, is provided at the top of the movable plate 5-3. The drive gear 5-8 meshes with the driven gear 5-7. A drive wheel 5-9, which is controlled by a motor, is installed at the bottom of the equipment frame 1. An annular protrusion 5-10 is provided at the bottom of the mixing shell 3. The side surface of the annular protrusion 5-10 is in contact with the surface of the drive wheel 5-9.

[0038] In some examples, to achieve efficient mixing of materials through a combination of vibration and rotation, a stirring assembly 5 is designed. This assembly includes a circular opening 5-1 on the surface of the top plate 4. Several brackets 5-2 are vertically fixed at the bottom of the top plate 4. A movable plate 5-3 is fitted onto the outside of the brackets 5-2 and can slide up and down along the brackets 5-2. Buffer springs 5-4 at the upper and lower ends of the brackets 5-2 respectively abut against the top plate 4 and the movable plate 5-3, providing elastic support for the movable plate 5-3. When the vibration motor 5-5 at the top of the movable plate 5-3 is working, it drives the movable plate 5-3 to vibrate at high frequency along the brackets 5-2. The vibration is transmitted to the material through the stirring frame 5-6, breaking up material agglomerates.

[0039] The stirring racks 5-6 inside the movable plate 5-3 are rotatably connected via bearings. The driven gear 5-7 at the upper end meshes with the drive gear 5-8 at the top of the movable plate 5-3. The drive gear 5-8 is electrically driven to rotate, synchronously driving all the stirring racks 5-6 to rotate. The rotation direction of the stirring racks 5-6 is opposite to the rotation direction of the mixing shell 3. The drive wheel 5-9 at the bottom of the equipment frame 1 is controlled by a motor to rotate. Its surface is in contact with the annular protrusion 5-10 at the bottom of the mixing shell 3. Through friction, it drives the mixing shell 3 to rotate along the annular slide rail 2, causing the internal materials to produce circumferential motion.

[0040] During mixing, the mixing shell 3 rotates to create a circulating flow of materials, while the mixing rack 5-6 rotates in the opposite direction to shear and mix the materials. Simultaneously, the vibration motor 5-5 drives the mixing rack 5-6 to vibrate, further dispersing the materials. The buffer spring 5-4 acts as a shock absorber during vibration, preventing damage to the equipment from severe vibration. The synergistic effect of these three elements allows the polymer materials to mix rapidly under the combined action of circulation, shearing, and vibration, solving the problem of insufficient mixing in traditional mixing processes and improving mixing efficiency.

[0041] like Figures 1-4 As shown, this embodiment proposes that the auxiliary discharge assembly 6 includes a central shaft 6-1, which is rotatably connected to the top plate 4. The central shaft 6-1 is driven to rotate by electricity. A spiral blade 6-2 is provided on the central shaft 6-1. The central shaft 6-1 and the spiral blade 6-2 extend into the discharge section at the bottom of the equipment frame 1. A fixing plate 6-3 is provided at the bottom of the equipment frame 1. A cylinder 6-4 is installed on the fixing plate 6-3. A sealing cover 6-5 is connected to the output end of the cylinder 6-4. The sealing cover 6-5 is attached to the discharge opening at the bottom of the mixing shell 3. A receiving cover 6-6 is provided at the bottom of the equipment frame 1. A discharge pipe 6-7 is provided on the side surface of the receiving cover 6-6. A spiral auger 6-8 driven to rotate by electricity is provided inside the discharge pipe 6-7 and the receiving cover 6-6.

[0042] In some examples, in order to achieve the effect of accelerated mixing and efficient discharge of materials, an auxiliary discharge component 6 is designed. This component includes a central shaft 6-1 in the top plate 4 and is rotatably connected by a bearing. It is driven by electricity to rotate, and the spiral blades 6-2 on the shaft rotate synchronously with it. The blades extend to the discharge part at the bottom of the equipment frame 1, which can push the material at the bottom of the mixing shell 3 upward to form vertical convection and enhance the mixing effect.

[0043] The fixing plate 6-3 at the bottom of the equipment frame 1 is fixed with bolts. The cylinder body of the cylinder 6-4 is mounted on the fixing plate 6-3. The sealing cover 6-5 connected to the output end fits against the discharge opening at the bottom of the mixing shell 3, and can control the opening and closing. The receiving hood 6-6 at the bottom of the equipment frame 1 is located below the mixing shell 3 and collects the material discharged from the discharge opening. The discharge pipe 6-7 on the side surface of the receiving hood 6-6 is connected to the interior. The spiral auger 6-8 inside the pipe is driven by electricity to rotate, which can transport the material along the pipe to the outside.

[0044] During the mixing stage, the sealing cap 6-5 closes the discharge opening, and the spiral blades 6-2 push the material upwards, promoting material circulation and mixing. After mixing is complete, the cylinder 6-4 moves the sealing cap 6-5 away, and the material enters the receiving hood 6-6 under the force of gravity and the push of the spiral blades 6-2. The auger 6-8 then quickly discharges the material along the discharge pipe 6-7. This component, through the convective mixing of the spiral blades 6-2 and the directional conveying of the auger 6-8, improves the mixing uniformity and accelerates the discharge speed, meeting the continuous production needs of coal mine reinforcement materials.

[0045] For example, such as Figure 4 As shown, the inner diameter of the part where the movable plate 5-3 and the bracket 5-2 are connected is larger than the diameter of the bracket 5-2.

[0046] In some examples, the inner diameter of the connection between the movable plate 5-3 and the bracket 5-2 is larger than the diameter of the bracket 5-2, creating a gap. This design provides vibration space for the movable plate 5-3, allowing it to move flexibly up and down along the bracket 5-2 under the drive of the vibration motor 5-5, avoiding jamming due to excessive tightness. Simultaneously, the gap accommodates the deformation of the buffer spring 5-4, ensuring smooth vibration transmission and allowing the mixing rack 5-6 to better transmit vibration to the material, enhancing the dispersion effect and reducing wear on the movable plate 5-3 and the bracket 5-2.

[0047] For example, such as Figure 3 As shown, the inner bottom surface of the hybrid outer shell 3 slopes towards the center.

[0048] In some examples, the bottom of the mixing shell 3 slopes gently towards the center. This inclined structure causes the material to gather towards the center as the shell rotates, facilitating full contact and mixing with the mixing racks 5-6 and reducing residue at the bottom. During discharge, the inclined surface guides the material to flow towards the bottom discharge opening, which, in conjunction with the spiral blades 6-2, accelerates the material discharge speed, prevents material accumulation, improves discharge efficiency, and meets the continuous production needs of coal mine reinforcement materials.

[0049] In practical use: Polymer materials are added to the mixing shell 3. The drive wheel 5-9 at the bottom of the equipment frame 1 is activated, causing the mixing shell 3 to rotate along the annular slide rail 2 via the annular protrusion 5-10. Simultaneously, the stirring assembly 5 is activated, and the vibration motor 5-5 drives the movable plate 5-3 to vibrate up and down along the bracket 5-2. The buffer spring 5-4 buffers the vibration impact, and the drive gear 5-8 meshes with the driven gear 5-7 to rotate the stirring frame 5-6. The rotation direction of the stirring frame 5-6 is opposite to that of the mixing shell 3, generating shear force, which, combined with vibration, breaks up material agglomerations. The top plate 4 is offset from the axis of the mixing shell 3, allowing the stirring frame 5-6 to have a wider range of action. The inclined inner bottom surface of the mixing shell 3 guides the material to gather towards the center. After mixing is complete, the cylinder 6-4 pulls the sealing cover 6-5 away from the discharge port. The central shaft 6-1 drives the spiral blades 6-2 to rotate, pushing the material to the receiving hood 6-6. The spiral auger 6-8 transports the material to the outside along the discharge pipe 6-7, completing the mixing and discharge process.

[0050] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.

Claims

1. A high-efficiency mixing device for polymer materials used in coal mine rock reinforcement, characterized in that, include: The equipment frame (1), the slide rail (2), and the mixing shell (3) are provided. The slide rail (2) is fixed in a ring shape on the equipment frame (1), and the mixing shell (3) is slidably connected to the slide rail (2). The top plate (4) and the stirring assembly (5) are fixed on the equipment frame (1). The top of the top plate (4) covers the upper end of the mixing shell (3). The top plate (4) is offset from the axial position of the mixing shell (3). The stirring assembly (5) is arranged on the top plate (4). An auxiliary discharge assembly (6) is disposed on the top plate (4) and the equipment frame (1); The stirring assembly (5) includes a circular opening (5-1) on the surface of the top plate (4). Several brackets (5-2) are provided at the bottom of the top plate (4). A movable plate (5-3) is provided inside the circular opening (5-1). The movable plate (5-3) is fitted onto the outside of the bracket (5-2). Buffer springs (5-4) are fitted at both the upper and lower ends of the bracket (5-2). A vibration motor (5-5) is fixed to the top of the movable plate (5-3).

2. The high-efficiency mixing equipment for polymer materials used in coal mine rock reinforcement according to claim 1, characterized in that, A plurality of stirring racks (5-6) are rotatably connected inside the movable plate (5-3). Each stirring rack (5-6) is provided with a driven gear (5-7) at its upper end. The top of the movable plate (5-3) is provided with a drive gear (5-8) that is driven to rotate by electricity. The drive gear (5-8) meshes with the driven gear (5-7).

3. The high-efficiency mixing equipment for polymer materials used in coal mine rock reinforcement according to claim 2, characterized in that, The bottom of the equipment frame (1) is equipped with a drive wheel (5-9) that is controlled to rotate by a motor, and the bottom of the mixing shell (3) is provided with an annular protrusion (5-10), the side surface of the annular protrusion (5-10) is in contact with the surface of the drive wheel (5-9).

4. The high-efficiency mixing equipment for polymer materials used in coal mine rock reinforcement according to claim 1, characterized in that, The auxiliary discharge assembly (6) includes a central shaft (6-1), which is rotatably connected to the top plate (4). The central shaft (6-1) is driven to rotate by electricity. A spiral blade (6-2) is provided on the central shaft (6-1). The central shaft (6-1) and the spiral blade (6-2) extend into the discharge section at the bottom of the equipment frame (1).

5. The high-efficiency mixing equipment for polymer materials used in coal mine rock reinforcement according to claim 4, characterized in that, The bottom of the equipment frame (1) is provided with a fixing plate (6-3), and a cylinder (6-4) is installed on the fixing plate (6-3). The output end of the cylinder (6-4) is connected to a sealing cover (6-5), and the sealing cover (6-5) is attached to the bottom discharge opening of the mixing shell (3).

6. The high-efficiency mixing equipment for polymer materials used in coal mine rock reinforcement according to claim 5, characterized in that, The bottom of the equipment frame (1) is provided with a receiving cover (6-6), and the side surface of the receiving cover (6-6) is provided with a discharge pipe (6-7). The discharge pipe (6-7) and the receiving cover (6-6) are provided with a spiral auger (6-8) that is driven by electricity to rotate.

7. The high-efficiency mixing equipment for polymer materials used in coal mine rock reinforcement according to claim 1, characterized in that, The inner diameter of the part where the movable plate (5-3) and the bracket (5-2) are connected is larger than the diameter of the bracket (5-2).

8. The high-efficiency mixing equipment for polymer materials used in coal mine rock reinforcement according to claim 1, characterized in that, The inner bottom of the hybrid shell (3) slopes towards the center.

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