A mine solid particle pneumatic pipe conveying system

Abstract

The present application relates to a kind of mine solid particle pneumatic pipeline conveying system, including pneumatic conveying pipeline, storage bin and feed module, the pneumatic conveying pipeline is multiple, and the pneumatic conveying pipeline is interconnected, and the upper end of pneumatic conveying pipeline is fixedly installed with storage bin, and the upper end of storage bin is installed with feed module.The present application can accurately carry out pneumatic conveying to material, and when the material in storage bin needs to be output, the material can be temporarily stored, which is beneficial to the accurate use of subsequent material.

Description

Technical Field

[0001] This application relates to the field of pneumatic conveying technology for solid particles, and in particular to a pneumatic pipeline conveying system for solid particles in mines. Background Technology

[0002] A mine shaft is the general term for the shafts, tunnels, equipment, surface buildings and structures that form an underground coal mine production system. Mine development can be divided into vertical shaft development, inclined shaft development, adit development and integrated development. After vertical shaft development, concrete is needed to support and fill the roadways and mining areas.

[0003] Currently, existing pneumatic conveying systems for mines typically have the following drawbacks: 1. Existing pneumatic conveying systems are generally unable to accurately collect and store materials, leading to material accumulation and blockages in the conveying pipelines; 2. Existing pneumatic conveying systems are unable to accurately convey materials downwards, resulting in material residues inside the storage bins and affecting the accuracy of material conveying. Summary of the Invention

[0004] In order to enable the accurate storage and transportation of solid particulate raw materials, this application provides a pneumatic pipeline transportation system for solid particulate materials in mines.

[0005] The technical solution of the pneumatic pipeline conveying system for solid particles in mines provided in this application is as follows:

[0006] A pneumatic pipeline conveying system for solid particles in mines includes pneumatic conveying pipelines, storage bins, and conveying modules. There are multiple pneumatic conveying pipelines that are interconnected. A storage bin is fixedly installed at the upper end of the pneumatic conveying pipeline, and a conveying module is installed at the upper end inside the storage bin.

[0007] The material conveying module includes a mounting plate, a drive unit, a feeding unit, a stirring unit, a conveying unit, and a guide frame. The mounting plate is installed on the upper end of the storage bin with screws. The drive unit is installed in the middle of the mounting plate. The feeding unit is installed at the lower end of the storage bin and is connected to the drive unit. A storage cavity is provided between the outside of the feeding unit and the storage bin. The stirring units are symmetrically installed in the storage cavity. The upper end of the stirring unit meshes with the drive unit. The conveying units are symmetrically installed at the lower end of the storage bin and are connected to the pneumatic conveying pipeline. A guide frame is installed in the middle of the pneumatic conveying pipeline and the lower end of the conveying unit cooperates with the guide frame.

[0008] By adopting the above technical solution, solid particulate materials are transported through pneumatic conveying pipelines under gas pressure. When it is necessary to temporarily store solid particulate materials, the feeding unit will uniformly convey the raw materials leading to the pneumatic conveying pipeline upwards, so that the materials can be accurately piled up inside the storage chamber. When the materials inside the storage chamber are used, the drive unit drives the conveying unit to uniformly convey the materials into the pneumatic conveying pipeline. Under the action of high-pressure gas, the materials are finally sent to the working face station. The working face station is equipped with equipment such as high-pressure pumps, shotcrete machines or cement pouring heads to work in accordance with construction needs.

[0009] Preferably, the drive unit includes a drive motor, a rotating shaft, a rotating sleeve, a connecting plate, an electric slider, a drive gear, and a connecting gear. The upper end of the mounting plate is equipped with a drive motor via a motor mount, and the lower end of the mounting plate is equipped with a rotating shaft via a bearing. The rotating shaft is connected to the output shaft of the drive motor. The rotating shaft is provided with a sliding groove, and the rotating sleeve is connected to the sliding groove via a sliding fit. The upper outer side of the rotating sleeve is equipped with a connecting plate via a bearing. Electric sliders are symmetrically installed on the inner wall of the storage compartment, and the inner side of the electric sliders is connected to the connecting plate. Connecting gears are symmetrically installed on the connecting plate. The rotating shaft is equipped with a drive gear that meshes with the connecting gear. The connecting gear meshes with the upper end of the stirring unit.

[0010] By adopting the above technical solution, the drive motor can drive the rotating sleeve to rotate synchronously through the rotating shaft. When it is necessary to transport materials into the storage bin, the electric slider drives the connecting plate to move downward, so that the lower end of the feeding unit can move to the middle of the guide frame. When it is necessary to output materials from the storage bin, the electric slider drives the connecting plate to move upward, so that the drive gear meshes with the stirring unit through the connecting gear. The stirring unit can then drive the conveying unit to transport the materials into the pneumatic conveying pipeline.

[0011] Preferably, the feeding unit includes a fixed sleeve, a spiral frame, a feeding plate, and a baffle. The fixed sleeve is installed at the lower end of the storage compartment, and the spiral frame is installed inside the fixed sleeve. The spiral frame is installed on the rotating sleeve, and the feeding plate is evenly installed in the middle of the rotating sleeve. The baffle is installed at the lower end of the rotating sleeve through a bearing.

[0012] By adopting the above technical solution, when the electric slider moves downward, the baffle moves to the middle of the guide frame, and the material accumulates in the middle of the guide frame under the action of pneumatic force. The spiral frame can evenly convey the accumulated material upward, and the material-pushing plate can drive the material to be pushed into the storage cavity.

[0013] Preferably, the material stop has a U-shaped cross-section, the guide frame is provided with a guide groove that cooperates with the material stop, and the material stop is uniformly provided with air holes.

[0014] By adopting the above technical solution, the baffle can block the material, allowing the material inside the pneumatic conveying pipeline to be accurately piled up inside the baffle. The diameter of the air hole is smaller than the diameter of the material particles, so that the material is piled up in the middle of the baffle under the action of high pressure gas.

[0015] Preferably, the stirring unit includes a connecting rod, a gear shaft, and a stirring frame. The connecting rods are symmetrically installed on the storage cavity, and the gear shaft is installed between the connecting rods through bearings. The stirring frame is installed in the middle of the gear shaft. The upper end of the gear shaft meshes with a connecting gear, and the lower end of the gear shaft meshes with a material conveying unit.

[0016] By adopting the above technical solution, when the drive unit meshes with the gear shaft, the gear shaft can drive the mixing frame to rotate, and the mixing frame can mix the material, which is beneficial for material transportation.

[0017] Preferably, the conveying unit includes a conveying bend, a control valve, and a conveying frame. The conveying bend has an arc-shaped structure and is connected to the storage bin and the pneumatic conveying pipeline by screws. A control valve is installed in the middle of the conveying bend, and a conveying frame is installed at the upper end of the conveying bend. The conveying frame has a spiral structure and a bevel gear is provided at the upper end of the conveying frame. The bevel gear meshes with the stirring unit.

[0018] By adopting the above technical solution, when the gear shaft rotates, the gear shaft can drive the conveyor frame to rotate, so that the conveyor frame can carry the material down the conveyor bend, which is conducive to the accurate conveying of the material.

[0019] Preferably, the guide frame has a ring structure, and the size of the guide frame gradually increases from the middle to both sides.

[0020] By adopting the above technical solution, when the material passes through the guide frame, as the size of the middle part of the guide frame decreases, the high-pressure gas drives the material to be ejected at high speed.

[0021] Preferably, a pressurization chamber is provided between the outer side of the guide frame and the pneumatic conveying pipe, and air jet holes are evenly arranged on the right side of the guide frame. The pressurization chamber is connected to the pressurization pump.

[0022] By adopting the above technical solution, the booster pump is connected to the booster chamber. When the booster pump is working, high-pressure gas is ejected through the jet hole, which facilitates the dispersion of materials and avoids the accumulation of materials.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. In order to accurately realize the function of storing and retrieving materials, a drive unit is set in this invention. When materials need to be transported into the storage bin, the electric slider drives the connecting plate to move downward, so that the lower end of the feeding unit can move to the middle of the guide frame. When materials need to be output from the storage bin, the electric slider drives the connecting plate to move upward, so that the drive gear meshes with the stirring unit through the connecting gear. The stirring unit can then drive the conveying unit to transport the materials into the pneumatic conveying pipeline.

[0025] 2. In order to accurately feed the material, a feeding unit is set in this embodiment. When the electric slider moves downward, the baffle moves to the middle of the guide frame. The material accumulates in the middle of the guide frame under the action of pneumatic force. The screw frame can evenly convey the accumulated material upward, and the material pusher plate can push the material into the storage cavity.

[0026] 3. In order to prevent material from accumulating inside the pneumatic conveying pipeline, a pressurizing chamber is provided between the outside of the guide frame and the pneumatic conveying pipeline in this invention. Air jet holes are evenly arranged on the right side of the guide frame. The pressurizing chamber is connected to the pressurizing pump. When the pressurizing pump is working, high-pressure gas is ejected through the air jet holes, which facilitates the material to disperse and avoids the accumulation of material. Attached Figure Description

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0028] Figure 1 This is a three-dimensional structural diagram of this application.

[0029] Figure 2 This is a cross-sectional view of this application.

[0030] Figure 3 This is a cross-sectional structural diagram of this application.

[0031] Figure 4 This is a three-dimensional structural diagram of the rotating plate, the material handling unit, and the rotating unit in this application.

[0032] Figure 5 This is a cross-sectional structural diagram of the drive motor, rotating plate, material handling unit and polishing unit of this application.

[0033] Figure 6 This is a cross-sectional structural diagram of the guiding unit of this application.

[0034] Figure 7 This is a cross-sectional structural diagram of the polishing unit of this application.

[0035] Figure 8 This is a cross-sectional structural diagram of the delivery module of this application.

[0036] Explanation of reference numerals in the attached drawings: 1. Pneumatic conveying pipeline; 2. Storage bin; 3. Conveying module; 31. Positioning frame; 32. Drive unit; 321. Drive motor; 322. Rotating shaft; 323. Rotating sleeve; 324. Connecting plate; 325. Electric slider; 326. Drive gear; 327. Connecting gear; 33. Feeding unit; 331. Fixed sleeve; 332. Spiral frame; 333. Material guide plate; 334. Material stop frame; 34. Mixing unit; 341. Connecting rod; 342. Gear shaft; 343. Mixing frame; 35. Conveying unit; 351. Conveying bend; 352. Control valve; 353. Conveying frame; 36. Guide frame. Detailed Implementation

[0037] The following is in conjunction with the appendix Figures 1-8 This application will be described in further detail.

[0038] This application discloses a pneumatic pipeline conveying system for solid particles in mines, which can accurately store and convey solid particle raw materials.

[0039] Reference Figure 1-2 As shown, a pneumatic pipeline conveying system for solid particles in a mine includes a pneumatic conveying pipeline 1, a storage bin 2, and a conveying module 3. There are multiple pneumatic conveying pipelines 1, which are interconnected. A storage bin 2 is fixedly installed at the upper end of the pneumatic conveying pipeline 1, and a conveying module 3 is installed at the upper end inside the storage bin 2.

[0040] It should be noted that the pneumatic conveying pipeline 1 consists of two sets of pipelines: a compressed air pipeline and a wear-resistant alloy pipeline for conveying dry premix. The dry premix is ​​concrete premix, which is conveyed by compressed air that has been dried and cooled. The material is stored and conveyed in a completely enclosed manner, with no noise or dust, making it green and environmentally friendly.

[0041] The material conveying module 3 includes a mounting plate 31, a drive unit 32, a feeding unit 33, a stirring unit 34, a conveying unit 35, and a guide frame 36. The mounting plate 31 is installed on the upper end of the storage bin 2 by screws. The drive unit 32 is installed in the middle of the mounting plate 31. The feeding unit 33 is installed at the lower end of the storage bin 2 and is connected to the drive unit 32. A storage cavity is provided between the outer side of the feeding unit 33 and the storage bin 2. The stirring unit 34 is symmetrically installed in the storage cavity. The upper end of the stirring unit 34 is engaged with the drive unit 32. The conveying unit 35 is symmetrically installed at the lower end of the storage bin 2 and is connected to the pneumatic conveying pipeline 1. The guide frame 36 is installed in the middle of the pneumatic conveying pipeline 1 and the lower end of the conveying unit 35 cooperates with the guide frame 36.

[0042] In actual use, solid granular materials are transported through pneumatic conveying pipeline 1 under gas pressure. When it is necessary to temporarily store solid granular materials, the feeding unit 33 will evenly convey the raw materials leading to the pneumatic conveying pipeline 1 upwards, so that the materials can be accurately piled up inside the storage chamber. When the materials inside the storage chamber 2 are used, the drive unit 32 drives the conveying unit 35 to evenly convey the materials into the pneumatic conveying pipeline 1. Under the action of high-pressure gas, the materials are finally sent to the working face station. The working face station is equipped with equipment such as high-pressure pumps, shotcrete machines or cement pouring heads to work in accordance with construction needs.

[0043] It should be noted that a support frame is provided at the lower end of the storage cavity. The support frame has a ring structure and an outwardly inclined surface. A weight sensor is installed inside the support frame to monitor the weight of the solid particles inside the storage cavity. When the weight of the solid particles reaches the set requirement, the feeding unit 33 stops feeding.

[0044] To accurately perform the material storage and retrieval function, a drive unit 32 is provided in this embodiment. The drive unit 32 includes a drive motor 321, a rotating shaft 322, a rotating sleeve 323, a connecting plate 324, an electric slider 325, a drive gear 326, and a connecting gear 327. The drive motor 321 is mounted on the upper end of the mounting plate 31 via a motor mount, and the rotating shaft 322 is mounted on the lower end of the mounting plate 31 via a bearing. The rotating shaft 322 is connected to the output shaft of the drive motor 321. Shaft 322 is provided with a sliding groove, and a rotating sleeve 323 is connected to the sliding groove by a sliding fit. A connecting plate 324 is installed on the outer side of the upper end of the rotating sleeve 323 through a bearing. Electric sliders 325 are symmetrically installed on the inner wall of the storage chamber 2. The inner side of the electric sliders 325 is connected to the connecting plate 324. Connecting gears 327 are symmetrically installed on the connecting plate 324. A drive gear 326 that meshes with the connecting gear 327 is installed on the rotating shaft 322. The connecting gear 327 meshes with the upper end of the stirring unit 34.

[0045] In actual use, the drive motor 321 can drive the rotating sleeve 323 to rotate synchronously through the rotating shaft 322. When it is necessary to transport materials into the storage bin 2, the electric slider 325 drives the connecting plate 324 to move downward, so that the lower end of the feeding unit 33 can move to the middle of the guide frame 36. When it is necessary to output materials from the storage bin 2, the electric slider 325 drives the connecting plate 324 to move upward, so that the drive gear 326 meshes with the stirring unit 34 through the connecting gear 327. The stirring unit 34 can then drive the conveying unit 35 to transport materials into the pneumatic conveying pipeline 1.

[0046] In order to accurately feed materials, a feeding unit 33 is provided in this embodiment. The feeding unit 33 includes a fixed sleeve 331, a screw frame 332, a material feeding plate 333, and a material blocking frame 334. The fixed sleeve 331 is installed at the lower end of the storage bin 2. The screw frame 332 is installed inside the fixed sleeve 331. The screw frame 332 is installed on the rotating sleeve 323. The material feeding plate 333 is evenly installed in the middle of the rotating sleeve 323. The material blocking frame 334 is installed at the lower end of the rotating sleeve 323 through a bearing.

[0047] In actual use, when the electric slider 325 moves downward, the baffle 334 moves to the middle of the guide frame 36. The material accumulates in the middle of the guide frame 36 under the action of pneumatic force. The spiral frame 332 can evenly convey the accumulated material upward, and the material-pushing plate 333 can drive the material to be pushed into the storage cavity.

[0048] In order to accurately collect materials, in this embodiment the cross-section of the baffle 334 is set in a U-shaped structure, the guide frame 36 is provided with a guide groove that cooperates with the baffle 334, and the baffle 334 is uniformly provided with air holes.

[0049] In actual use, the baffle 334 serves to block the material, allowing the material inside the pneumatic conveying pipe 1 to be accurately piled up inside the baffle 334. The diameter of the air hole is smaller than the diameter of the material particles, so that the material is piled up in the middle of the baffle 334 under the action of high pressure gas.

[0050] In order to accurately stir the materials, a stirring unit 34 is provided in this embodiment. The stirring unit 34 includes a connecting rod 341, a gear shaft 342 and a stirring frame 343. The connecting rods 341 are symmetrically installed on the storage cavity. The gear shaft 342 is installed between the connecting rods 341 through bearings. The stirring frame 343 is installed in the middle of the gear shaft 342. The upper end of the gear shaft 342 meshes with the connecting gear 327, and the lower end of the gear shaft 342 meshes with the material conveying unit 35.

[0051] In actual use, when the drive unit 32 meshes with the gear shaft 342, the gear shaft 342 can drive the mixing frame 343 to rotate, and the mixing frame 343 can mix the material, which is beneficial for material conveying.

[0052] In order to accurately transport the materials inside the storage bin to the pneumatic conveying pipeline 1, a conveying unit 35 is provided in this embodiment. The conveying unit 35 includes a conveying bend 351, a control valve 352, and a conveying frame 353. The conveying bend 351 has an arc-shaped structure and is connected to the storage bin 2 and the pneumatic conveying pipeline 1 by screws. The control valve 352 is installed in the middle of the conveying bend 351, and the conveying frame 353 is installed at the upper end of the conveying bend 351. The conveying frame 353 has a spiral structure and a bevel gear is provided at the upper end of the conveying frame 353. The bevel gear meshes with the stirring unit 34.

[0053] In actual use, when the gear shaft 342 rotates, the gear shaft 342 can drive the conveyor frame 353 to rotate, so that the conveyor frame 353 can drive the material to be conveyed downward along the conveyor bend 351, which is conducive to accurate material conveying.

[0054] The guide frame 36 has a ring structure, and the size of the guide frame 36 gradually increases from the middle to both sides.

[0055] In actual use, when the material passes through the guide frame 36, when the size of the middle part of the guide frame 36 decreases, the high-pressure gas drives the material to be ejected at high speed.

[0056] In order to prevent material from accumulating inside the pneumatic conveying pipe 1, a pressurizing chamber is provided between the outer side of the guide frame 36 and the pneumatic conveying pipe 1, and air jet holes are evenly arranged on the right side of the guide frame 36. The pressurizing chamber is connected to the pressurizing pump.

[0057] In actual use, the booster pump is connected to the booster chamber. When the booster pump is working, high-pressure gas is ejected through the jet hole, which helps the material to disperse and avoids the accumulation of material.

[0058] The implementation principle of this embodiment is as follows:

[0059] 1: Material pneumatic conveying. Under high pressure, the material is conveyed along the pneumatic conveying pipeline 1 and delivered to the working face station under the action of air pressure.

[0060] 2: Material storage. When materials need to be stored, the electric slider 325 drives the connecting plate 324 to move downward, so that the lower end of the feeding unit 33 can move to the middle of the guide frame 36. The feeding unit 33 will evenly convey the raw materials leading to the pneumatic conveying pipe 1 upward, so that the materials can be accurately stored in the storage bin 2.

[0061] 3: Material conveying. When materials need to be conveyed, the electric slider 325 drives the connecting plate 324 to move upward, so that the drive gear 326 meshes with the stirring unit 34 through the connecting gear 327. The stirring unit 34 can then drive the conveying unit 35 to convey the materials into the pneumatic conveying pipeline 1.

[0062] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A pneumatic conveying system for solid particles in a mine, comprising a pneumatic conveying pipeline (1), a storage bin (2), and a conveying module (3), characterized in that, There are multiple pneumatic conveying pipes (1), which are interconnected. A storage bin (2) is fixedly installed at the upper end of each pneumatic conveying pipe (1), and a material conveying module (3) is installed at the upper end inside the storage bin (2). The material conveying module (3) includes a mounting plate (31), a drive unit (32), a feeding unit (33), a stirring unit (34), a conveying unit (35), and a guide frame (36). The mounting plate (31) is installed on the upper end of the storage bin (2) by screws. The drive unit (32) is installed in the middle of the mounting plate (31). The feeding unit (33) is installed at the lower end of the storage bin (2). The feeding unit (33) is connected to the drive unit (32). A storage cavity is provided between the outer side of the feeding unit (33) and the storage bin (2). The stirring unit (34) is symmetrically installed in the storage cavity. The upper end of the stirring unit (34) meshes with the drive unit (32). The conveying unit (35) is symmetrically installed at the lower end of the storage bin (2). The conveying unit (35) is connected to the pneumatic conveying pipeline (1). The guide frame (36) is installed in the middle of the pneumatic conveying pipeline (1). The lower end of the conveying unit (35) cooperates with the guide frame (36). The drive unit (32) includes a drive motor (321), a rotating shaft (322), a rotating sleeve (323), a connecting plate (324), an electric slider (325), a drive gear (326), and a connecting gear (327). The drive motor (321) is mounted on the upper end of the mounting plate (31) via a motor mount, and the rotating shaft (322) is mounted on the lower end of the mounting plate (31) via a bearing. The rotating shaft (322) is connected to the output shaft of the drive motor (321). The rotating shaft (322) is provided with a sliding groove, and a sliding mechanism is used to slide along the groove. A rotating sleeve (323) is connected in a cooperative manner. A connecting plate (324) is installed on the outer side of the upper end of the rotating sleeve (323) through a bearing. Electric sliders (325) are symmetrically installed on the inner wall of the storage compartment (2). The inner side of the electric sliders (325) is connected to the connecting plate (324). Connecting gears (327) are symmetrically installed on the connecting plate (324). A drive gear (326) that meshes with the connecting gear (327) is installed on the rotating shaft (322). The connecting gear (327) meshes with the upper end of the stirring unit (34). The conveying unit (35) includes a conveying bend (351), a control valve (352), and a conveying frame (353). The conveying bend (351) has an arc-shaped structure. The conveying bend (351) is connected to the storage bin (2) and the pneumatic conveying pipeline (1) by screws. The control valve (352) is installed in the middle of the conveying bend (351). The conveying frame (353) is installed at the upper end of the conveying bend (351). The conveying frame (353) has a spiral structure. A bevel gear is provided at the upper end of the conveying frame (353). The bevel gear meshes with the stirring unit (34). The guide frame (36) has a ring structure, and the size of the guide frame (36) gradually increases from the middle to both sides.

2. The mine solid particle pneumatic pipeline conveying system according to claim 1, characterized in that: The feeding unit (33) includes a fixed sleeve (331), a screw frame (332), a material feeding plate (333), and a material stopper (334). The storage bin (2) is equipped with a fixed sleeve (331) at its lower end. The fixed sleeve (331) is equipped with a screw frame (332) inside. The screw frame (332) is installed on a rotating sleeve (323). The material feeding plate (333) is evenly installed in the middle of the rotating sleeve (323). The material stopper (334) is installed at the lower end of the rotating sleeve (323) through a bearing.

3. A pneumatic pipeline conveying system for solid particles in a mine according to claim 2, characterized in that: The baffle (334) has a U-shaped cross-section, and the guide frame (36) is provided with a guide groove that cooperates with the baffle (334). The baffle (334) is provided with air holes evenly.

4. A pneumatic pipeline conveying system for solid particles in a mine according to claim 1, characterized in that: The stirring unit (34) includes a connecting rod (341), a gear shaft (342), and a stirring frame (343). The connecting rods (341) are symmetrically installed on the storage cavity. The gear shaft (342) is installed between the connecting rods (341) through bearings. The stirring frame (343) is installed in the middle of the gear shaft (342). The upper end of the gear shaft (342) meshes with the connecting gear (327), and the lower end of the gear shaft (342) meshes with the material conveying unit (35).

5. A pneumatic pipeline conveying system for solid particles in a mine according to claim 1, characterized in that: A pressurization chamber is provided between the outer side of the guide frame (36) and the pneumatic conveying pipe (1). Air jet holes are evenly arranged on the right side of the guide frame (36). The pressurization chamber is connected to the pressurization pump.

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