Automatic cleaning device for coal slime conveying

Abstract

The utility model belongs to the technical field of underground coal mine transportation, and particularly relates to a coal slime conveying and automatic cleaning device which comprises a horizontal conveying device and a lifting conveying device, the lower end of the lifting conveying device is connected to the tail end of the horizontal conveying device, and the horizontal conveying device is arranged below a conveying belt. The tail end of the lifting conveying device is arranged above the conveying belt; the horizontal conveying device comprises a material receiving shell and a horizontal spiral assembly, the horizontal spiral assembly is installed in the material receiving shell, an opening is formed in the upper side of the material receiving shell, the lifting conveying device comprises a feeding shell and a lifting spiral assembly, and the lifting spiral assembly is installed in the feeding shell; the horizontal spiral assembly and the lifting spiral assembly are both connected with a conveying driving assembly. The horizontal conveying device conveys the fallen materials to the lifting conveying device, the lifting conveying device conveys the fallen materials to the position above the conveying belt again, the fallen materials are prevented from being stacked below the conveying belt, the fallen materials are collected and conveyed back to the position above the conveying belt, manpower resources are liberated, and material waste is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of underground coal mine transportation, and in particular relates to an automatic cleaning device for coal slime transportation. Background Art

[0002] Belt conveyors can be used for horizontal or inclined transportation. They are very convenient to use and are widely used in various modern industrial enterprises, such as underground tunnels of mines, ground transportation systems of mines, open-pit mines and beneficiation plants. In the current coal washing plant, when the conveyor belt is working, part of the coal slime will adhere to the conveyor belt due to the moisture in the coal slime. When the attached coal slime passes through the conveyor belt cleaner under the conveyor belt, the attached coal slime will be cleaned up by the conveyor belt cleaner and fall to the ground, piling up. Every once in a while, the coal slime under the conveyor belt has to be manually loaded onto the conveyor belt with a shovel. Due to the limited space under the conveyor belt, cleaning the coal slime is time-consuming and laborious. Utility Model Content

[0003] The utility model aims to overcome the deficiencies of the prior art and provides an automatic cleaning device for coal slime conveying, which can realize the recovery of coal slime falling off below the conveyor belt and convey it to the top of the conveyor belt.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a coal slime conveying and cleaning device, comprising a horizontal conveying device and a lifting conveying device, the lower end of the lifting conveying device is connected to the end of the horizontal conveying device, the horizontal conveying device is arranged below the conveyor belt, and the end of the lifting conveying device is arranged above the conveyor belt; the horizontal conveying device comprises a material receiving shell and a horizontal spiral assembly, the horizontal spiral assembly is installed in the material receiving shell, and the upper side of the material receiving shell is opened, the lifting conveying device comprises a feeding shell and a lifting spiral assembly, the lifting spiral assembly is installed in the feeding shell, and the horizontal spiral assembly and the lifting spiral assembly are both connected to a conveying drive assembly.

[0005] Preferably, the material receiving shell is U-shaped, and outward expansion plates are arranged on both sides of the upper end of the material receiving shell to be inclined outwards.

[0006] Preferably, the horizontal spiral assembly includes a horizontal spiral short shaft and horizontal spiral blades, and the lifting spiral assembly includes a lifting and conveying long shaft and lifting spiral blades, and both the horizontal spiral short shaft and the lifting and conveying long shaft are connected to the conveying drive device.

[0007] Preferably, the thickness of the horizontal spiral blade is 18 mm to 22 mm, and the thickness of the lifting spiral blade is 3 mm to 7 mm.

[0008] Preferably, the pitch of the lifting spiral blade gradually increases from bottom to top.

[0009] Preferably, the fitting clearance between the horizontal spiral assembly and the material receiving shell is 0.5mm~1mm, and the fitting clearance between the lifting spiral assembly and the material feeding shell is 8mm~10mm.

[0010] Preferably, a cross slider coupling is provided between the horizontal screw assembly and the conveying drive assembly.

[0011] Preferably, the lifting and conveying device is arranged vertically, the conveying drive assembly is arranged on one side of the lower end of the lifting screw assembly, and a belt transmission assembly is arranged between the conveying drive assembly and the lifting screw assembly.

[0012] Preferably, a discharge pipe is provided at the upper end of the feeding shell in a downwardly inclined manner.

[0013] Preferably, a skeleton oil seal is provided at the upper end of the lifting spiral assembly.

[0014] Compared with the prior art, the above technical solution has the following beneficial effects:

[0015] The utility model comprises a horizontal conveying device and a lifting conveying device. The horizontal conveying device is arranged below the conveyor belt. The falling materials on the conveyor belt fall into the horizontal conveying device from the upper end opening of the material receiving shell. The horizontal conveying device conveys the falling materials to the lifting conveying device. The lifting conveying device transports the falling materials upward and re-conveys them to the top of the conveyor belt, thus avoiding the falling materials from accumulating below the conveyor belt, collecting the falling materials and conveying them back to the top of the conveyor belt, liberating human resources and reducing the waste of materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model.

[0017] Figure 2 It is the front view of the horizontal conveying device.

[0018] Figure 3 It is a side view of the horizontal conveying device.

[0019] Figure 4 It is the front view of the horizontal transmission device.

[0020] Figure 5 It is the front view of the lifting and conveying device.

[0021] Figure 6 It is the front view of the lifting transmission device.

[0022] Wherein: 1, horizontal transmission device 11, horizontal transmission motor 12, horizontal transmission reducer 13, cross slider coupling protection cover 14, cross slider coupling 15, horizontal transmission vertical plate 16, horizontal transmission base 2, horizontal conveying device 21, horizontal spiral short shaft 22, horizontal spiral blade 23, first concave-convex movable flange 24, material receiving shell 3, lifting transmission device 31, lifting transmission bearing 32, lifting transmission motor base 33, lifting transmission motor 34, belt protection cover 35, small pulley 36, belt 37, large pulley 4, lifting conveying device 41, lifting conveying long shaft 42, second concave-convex movable flange 43, lifting spiral blade 44, feeding shell 45, discharge pipe 46, third concave-convex movable flange 47, fourth concave-convex movable flange 48, skeleton oil seal. DETAILED DESCRIPTION

[0023] Figures 1 to 6 It is the best embodiment of the utility model, and the following Figures 1 to 6 The utility model is further described.

[0024] like Figure 1 As shown, an automatic cleaning device for conveying coal slime of the utility model comprises a horizontal conveying device 2 and a lifting conveying device 4, the lower end of the lifting conveying device 4 is connected to the end of the horizontal conveying device 2, the horizontal conveying device 2 is arranged below the conveyor belt, the falling materials on the conveyor belt fall into the horizontal conveying device 2, and are conveyed to the lifting conveying device 4 by the horizontal conveying device, the end of the lifting conveying device 4 is arranged above the conveyor belt, and the lifting conveying device 4 transports the falling materials upward and re-conveys them to the conveyor belt to prevent waste of falling materials; the horizontal conveying device 2 comprises a material receiving shell 24 and a horizontal spiral assembly, the horizontal spiral assembly is installed in the material receiving shell 24, and the upper side opening of the material receiving shell 24 is arranged to facilitate receiving the falling materials from the upper conveyor belt, the lifting conveying device 4 comprises a feeding shell 44 and a lifting spiral assembly, the lifting spiral assembly is installed in the feeding shell 44, the horizontal spiral assembly and the lifting spiral assembly are both connected with a conveying drive assembly, and the conveying drive assembly drives the horizontal spiral assembly and the lifting spiral assembly to rotate so as to transport the falling materials.

[0025] like Figure 2~3As shown, the material receiving shell 24 in this embodiment is U-shaped, and outward expansion plates are arranged on both sides of the upper end of the material receiving shell 24, which are inclined outward. The outward expansion plates on both sides can more comprehensively receive the falling materials on the conveyor belt. The horizontal spiral assembly includes a horizontal spiral short shaft 21 and a horizontal spiral blade 22. The horizontal spiral blade 22 is fixedly arranged on one side of the horizontal spiral short shaft 21, and the other side of the horizontal spiral short shaft 21 is connected to the horizontal transmission device 1, i.e., the conveying drive device. The thickness of the horizontal spiral blade 22 is 18mm~22mm. In this embodiment, the material of the horizontal spiral blade 22 is 16Mn, the thickness is 20mm, and it is formed by drawing the spiral to ensure its strength and service life. The fitting clearance between the horizontal spiral blade 22 and the material receiving shell 24 is 0.5mm~1mm.

[0026] like Figure 4 As shown, the horizontal transmission device 1 is installed on the horizontal transmission base 16, and the horizontal transmission device 1 includes a horizontal transmission motor 11 and a horizontal transmission reducer 12. The horizontal spiral short shaft 21 is fixedly supported by the horizontal transmission vertical plate 15. The horizontal transmission reducer 12 transmits power to the horizontal spiral short shaft 21. A cross slider coupling 14 is arranged between the horizontal transmission reducer 12 and the horizontal spiral short shaft 21. A cross slider coupling protective cover 13 is arranged on the outside of the cross slider coupling 14. The cross slider coupling protective cover 13 can be used to protect the cross slider coupling 14. The horizontal transmission motor 11 works, and the horizontal transmission reducer 12 and the cross slider coupling 14 transmit the power of the horizontal transmission motor 11 to the horizontal spiral short shaft 21. The horizontal spiral short shaft 21 rotates, and the horizontal spiral blades 22 transport the blank to the side of the lifting and conveying device 4.

[0027] like Figure 5 As shown, the lifting spiral assembly includes a lifting and conveying long shaft 41 and a lifting spiral blade 43. The lifting spiral blade 43 is welded to the outside of the lifting and conveying long shaft 41. Welding is used to prevent the lifting spiral blade 43 from deformation. The lifting and conveying long shaft 41 is connected to the lifting transmission device 3, that is, the conveying drive device. The thickness of the lifting spiral blade 43 is 3mm~7mm. In this embodiment, the material of the lifting spiral blade 43 is 16Mn and the thickness is 5mm. It is formed by drawing the spiral to ensure its strength and service life. The fitting clearance between the lifting spiral assembly and the feeding shell 44 is 8mm~10mm, which is convenient for the transportation of blanking.

[0028] The pitch of the lifting spiral blade 43 gradually increases from bottom to top. In this embodiment, the pitch below the lifting spiral blade 43 is 100 mm, and the pitch above the lifting spiral blade 43 is 180 mm, which can make the transportation of coal slime more efficient. A skeleton oil seal 48 is set at the upper end of the lifting spiral assembly to seal and prevent water leakage.

[0029] The horizontal conveying device 2 is connected to the lifting conveying device 4 through two flanges. Specifically, a first concave-convex movable flange 23 is provided on the right side of the material receiving shell 24, and a second concave-convex movable flange 42 is provided on the left side of the lower end of the feeding shell 44. The material receiving shell 24 and the feeding shell 44 are connected through a concave-convex movable flange 23 and a second concave-convex movable flange 42, which is convenient for installation and disassembly, and a packing-type double-pass seal is used at the connection to ensure watertightness. A discharge pipe 45 is provided at an angle downward at the upper end of the feeding shell 44, and the feeding shell 44 and the discharge pipe 45 are connected through a third concave-convex movable flange 46 and a fourth concave-convex movable flange 47, which is convenient for disassembly and replacement, and a packing-type double-pass seal is also used at the connection.

[0030] like Figure 6 As shown, in this embodiment, the lifting and conveying device 4 is vertically arranged, and the lifting transmission device 3 is installed on one side of the lower end of the feeding shell 44 through the lifting transmission motor base 32. The lifting transmission device 3 includes a lifting transmission motor 33. In this embodiment, the rotation speed of the lifting transmission motor 33 is 63r / min. The lifting transmission motor 33 is vertically arranged, and the output shaft of the lifting transmission motor 33 is at the bottom. A belt drive assembly is arranged between the lifting transmission motor 33 and the lifting and conveying long shaft 41.

[0031] Specifically, a belt protection cover 34 is provided on the outer cover of the belt transmission assembly, and the belt transmission assembly is arranged below the lifting transmission motor 33 and the lifting and conveying long shaft 41. The belt transmission assembly includes a small pulley 35, a belt 36 and a large pulley 37. The small pulley 35 is fixedly connected to the output shaft of the lifting transmission motor 33, and the large pulley 37 is fixedly connected below the lifting and conveying long shaft 41. The belt 36 diffracts outside the small pulley 35 and the large pulley 37, and a lifting transmission bearing 31 is provided between the large pulley 37 and the lifting and conveying long shaft 41. When the lifting transmission motor 33 works, the belt transmission assembly transmits the power of the lifting transmission motor 33 to the lifting and conveying long shaft 41, so that the lifting spiral blade 43 rotates to convey the blanking.

[0032] In this embodiment, the effective conveying length of the horizontal conveying device 2 is 1.2 m, and the effective conveying length of the lifting conveying device 4 is 2.8 m.

[0033] When the utility model is in use, the blanks on the conveyor belt fall into the upper end of the material receiving shell 21, and the horizontal transmission motor 11 works to drive the horizontal spiral short shaft 21 to rotate, so that the horizontal spiral blade 22 spirally rotates, and the blanks are conveyed to the lifting and conveying device 4, and the lifting transmission motor 33 works to drive the lifting spiral long shaft 41 to rotate, so that the lifting spiral blade 43 spirally rotates, so that the material is lifted along the spiral direction, and finally transported out from the upper discharge pipe 45, and fall on the upper part of the conveyor belt to continue to be transported, thereby avoiding the blanks from accumulating under the conveyor belt, collecting the blanks and conveying them back to the upper part of the conveyor belt, freeing up human resources and reducing the waste of materials.

[0034] The above is only the preferred embodiment of the utility model, and does not limit the utility model in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the technical solution of the utility model still belongs to the protection scope of the technical solution of the utility model.

Claims

1. An automatic cleaning device for coal slime transportation, characterized in that: It comprises a horizontal conveying device (2) and a lifting conveying device (4), wherein the lower end of the lifting conveying device (4) is connected to the end of the horizontal conveying device (2), the horizontal conveying device (2) is arranged below the conveyor belt, and the end of the lifting conveying device (4) is arranged above the conveyor belt; the horizontal conveying device (2) comprises a material receiving shell (24) and a horizontal spiral assembly, wherein the horizontal spiral assembly is installed in the material receiving shell (24), and the upper side of the material receiving shell (24) is opened; the lifting conveying device (4) comprises a feeding shell (44) and a lifting spiral assembly, wherein the lifting spiral assembly is installed in the feeding shell (44), and the horizontal spiral assembly and the lifting spiral assembly are both connected to a conveying drive assembly.

2. The automatic cleaning device for coal slime transportation according to claim 1, characterized in that: The material receiving shell (24) is U-shaped, and outward expansion plates are arranged on both sides of the upper end of the material receiving shell (24) in an outwardly inclined manner.

3. The automatic cleaning device for coal slime transportation according to claim 1 is characterized in that: The horizontal spiral assembly comprises a horizontal spiral short shaft (21) and a horizontal spiral blade (22), and the lifting spiral assembly comprises a lifting and conveying long shaft (41) and a lifting spiral blade (43). Both the horizontal spiral short shaft (21) and the lifting and conveying long shaft (41) are connected to a conveying drive device.

4. The automatic cleaning device for coal slime transportation according to claim 3 is characterized in that: The thickness of the horizontal spiral blade (22) is 18 mm to 22 mm, and the thickness of the lifting spiral blade (43) is 3 mm to 7 mm.

5. The automatic cleaning device for coal slime transportation according to claim 3 is characterized in that: The pitch of the lifting spiral blade (43) gradually increases from bottom to top.

6. The automatic cleaning device for coal slime transportation according to claim 1, characterized in that: The matching clearance between the horizontal spiral assembly and the material receiving housing (24) is 0.5 mm to 1 mm, and the matching clearance between the lifting spiral assembly and the material feeding housing (44) is 8 mm to 10 mm.

7. The automatic cleaning device for coal slime conveying according to claim 1 is characterized in that: A cross-slider coupling (14) is provided between the horizontal screw assembly and the conveying drive assembly.

8. The automatic cleaning device for coal slime transportation according to claim 1, characterized in that: The lifting and conveying device (4) is arranged vertically, the conveying drive assembly is arranged on one side of the lower end of the lifting screw assembly, and a belt transmission assembly is arranged between the conveying drive assembly and the lifting screw assembly.

9. The automatic cleaning device for coal slime transportation according to claim 1, characterized in that: A discharge pipe (45) is provided at the upper end of the feeding housing (44) in a downwardly inclined manner.

10. The automatic cleaning device for coal slime transportation according to claim 1, characterized in that: A skeleton oil seal (48) is provided at the upper end of the lifting spiral assembly.

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