Double-layer conveying belt type conveyor for coal washing system

Abstract

The utility model discloses a double-layer conveyer belt type conveyor for a coal washing system, which comprises an upper-layer belt type conveying mechanism, a lower-layer belt type conveying mechanism and a machine body frame, and the upper-layer belt type conveying mechanism and the lower-layer belt type conveying mechanism respectively comprise a machine head arranged on an upper platform and a spiral tensioning machine tail arranged on the lower portion of a trestle. The lower-layer machine head is located behind the upper-layer machine head, the lower-layer spiral tensioning machine tail is located behind the upper-layer spiral tensioning machine tail, the machine body frame is obliquely and downwards arranged along the trestle from the upper platform, and an upper-layer groove-shaped upper carrier roller set, an upper-layer lower carrier roller set, a lower-layer groove-shaped upper carrier roller set and a lower-layer lower carrier roller set are sequentially arranged on the machine body frame from top to bottom. The upper-layer belt is arranged along the upper-layer groove-shaped upper carrier roller set and the upper-layer lower carrier roller set, the lower-layer belt is arranged along the lower-layer groove-shaped upper carrier roller set and the lower-layer lower carrier roller set, and the upper-layer belt is parallel to the lower-layer belt. According to the utility model, the arrangement of two belt conveyors in the same narrow gallery road space in the coal washing system is realized.

Description

Technical Field

[0001] The utility model belongs to the technical field of material handling equipment, in particular to a double-layer conveyor belt conveyor for a coal washing system. Background Art

[0002] Belt conveyors have the advantages of long conveying distance, large transport capacity and continuous transport. In the coal preparation system of large coal washing plants, belt conveyors are crucial and the most indispensable mechanical equipment. At present, in most coal washing systems, it is generally necessary to complete the layout of belt conveyors by erecting trestles. The layout often involves two belt conveyors in parallel. The required width of the trestles is relatively large. Whether it is a new construction project or an expansion and reconstruction project, the cost of civil engineering is high.

[0003] In a production improvement and reconstruction project for a coal washing plant in a certain mine, under the premise of keeping the belt speed unchanged, increasing the transportation volume inevitably requires increasing the bandwidth. Due to the limitation of the original trestle space conditions, the requirement of increasing the bandwidth of the belt conveyor cannot be met. If the trestle space is expanded, it will inevitably cause a substantial increase in civil engineering costs. Therefore, it is necessary to design a new type of double-layer transport belt conveyor that can fully utilize the space and meet the needs of increasing transportation volume without increasing additional civil engineering costs. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a double-layer transport belt conveyor for a coal washing system.

[0005] The technical solution adopted by the utility model is a double-layer transport belt conveyor for a coal washing system, comprising an upper belt conveyor mechanism, a lower belt conveyor mechanism and a body frame, the upper belt conveyor mechanism comprising an upper machine head arranged on an upper platform and an upper spiral tensioning machine tail arranged at the lower part of a trestle, the lower belt conveyor mechanism comprising a lower machine head arranged on an upper platform and a lower spiral tensioning machine tail arranged at the lower part of a trestle, the lower machine head is located behind the upper machine head, and the lower spiral tensioning machine tail is located behind the upper spiral tensioning machine tail The fuselage frame is arranged obliquely downward from the upper platform along the trestle, and an upper trough-type upper roller group, an upper lower roller group, a lower trough-type upper roller group, and a lower lower roller group are arranged on the fuselage frame from top to bottom. The upper belt is arranged along the upper trough-type upper roller group and the upper lower roller group, and the lower belt is arranged along the lower trough-type upper roller group and the lower lower roller group, and the upper belt is parallel to the lower belt, and a material guide trough with an inverted trapezoidal cross-section is arranged above the upper belt near the tail side of the upper spiral tensioner and above the lower belt near the tail side of the lower spiral tensioner.

[0006] Furthermore, a diversion mechanism is arranged above the lower belt and behind the tail of the upper spiral tensioner.

[0007] Furthermore, the fuselage frame is composed of a plurality of intermediate frame legs, and the intermediate frame legs include two parallel columns, and a connecting rod is arranged between the two columns.

[0008] Furthermore, the upper machine head is fixed on the upper unloading base, an upper driving device chassis is arranged on one side of the upper unloading base, a motor and a reducer are installed on the upper driving device chassis and the upper unloading roller is connected to the upper unloading roller through transmission, and the lower machine head is fixed on the lower unloading base, a lower driving device chassis is arranged on one side of the lower unloading base, a motor and a reducer are installed on the lower driving device chassis and the lower unloading roller is connected to the lower unloading roller through transmission.

[0009] Furthermore, the upper unloading base and the upper driving device chassis are both composed of two parts, which are split into upper and lower parts and are connected by bolts in the middle.

[0010] The utility model discloses a double-layer transport belt conveyor for a coal washing system, which takes the main structural form of an ordinary single-layer belt conveyor as the structural basis. The whole machine adopts a structural form of two sets of machine heads, two sets of spiral tensioned machine tails, and a shared set of machine body frames. The conveying lines of the double-layer belt conveyor overlap and do not occupy width space. In terms of length space, the two sets of machine heads and machine tails are arranged in a staggered manner, which can realize the unloading of the machine head and the receiving of the machine tail at the same time, realizing the arrangement of two belt conveyors in the same narrow plank road space in the coal washing system, and also realizing the classified transportation of different types of coal, reducing the demand for the width of the plank road, and reducing the overall construction and reconstruction cost of the plank road. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the utility model;

[0012] Figure 2 It is a side view of the middle frame leg of the utility model;

[0013] Figure 3 It is a side view of the lower material guide trough of the utility model;

[0014] Figure 4 It is a side view of the upper machine head of the utility model;

[0015] Figure 5 It is a front view of the base of the upper driving device of the utility model;

[0016] Figure 6 It is a side view of the lower machine head of the utility model.

[0017] In the figure: 1. upper belt conveyor mechanism; 11. upper machine head; 12. upper unloading base; 13. upper material guide trough; 14. upper spiral tensioning tail; 15. upper trough-type upper roller; 16. upper lower roller; 17. upper driving device chassis; 2. lower belt conveyor mechanism; 21. lower machine head; 22. upper unloading base; 23. lower material guide trough; 24. lower spiral tensioning tail; 25. lower trough-type upper roller; 26. lower lower roller; 27. lower driving device chassis; 3. fuselage frame; 31. column; 32. connecting rod; 4. diversion mechanism. DETAILED DESCRIPTION

[0018] In order to better understand the purpose, structure and function of the utility model, the double-layer transport belt conveyor for a coal washing system of the utility model is further described in detail below with reference to the accompanying drawings.

[0019] like Figure 1 As shown, a double-layer conveyor belt conveyor for a coal washing system includes an upper belt conveyor mechanism 1, a lower belt conveyor mechanism 2 and a body frame 3. The upper belt conveyor mechanism 1 includes an upper head 11 arranged on an upper platform and an upper spiral tensioning tail 14 arranged at the lower part of a trestle. The lower belt conveyor mechanism 2 includes a lower head 21 arranged on an upper platform and a lower spiral tensioning tail 24 arranged at the lower part of a trestle. The lower head 21 is located at the upper head 1 1, the lower spiral tensioning tail 24 is located behind the upper spiral tensioning tail 14, the fuselage frame 3 is arranged obliquely downward from the upper platform along the trestle, and the fuselage frame 3 is sequentially provided with an upper trough-type upper roller group, an upper lower roller group, a lower trough-type upper roller group, and a lower lower roller group from top to bottom, the upper belt is arranged along the upper trough-type upper roller group and the upper lower roller group, the lower belt is arranged along the lower trough-type upper roller group and the lower lower roller group, and the upper belt is parallel to the lower belt.

[0020] The utility model discloses a double-layer transport belt conveyor for a coal washing system. Two belt conveyor mechanisms with the same width are laid in the coal conveying plank road space. The heads of the two belt conveyor mechanisms are staggered and the tails of the two belt conveyor mechanisms are staggered, so that the upper and lower double-layer belt conveyor mechanisms can unload materials and the two-layer belt conveyor mechanisms can receive materials smoothly.

[0021] In this embodiment, the fuselage frame 3 is composed of a plurality of intermediate frame legs, such as Figure 2As shown, the middle frame legs include two parallel columns 31, and the upper trough-type upper roller 15, the upper lower roller 16, the lower trough-type upper roller 25, the lower lower roller 26 and the connecting rod 32 are arranged in sequence from top to bottom between the two columns 31. The double-layer belt conveyor lines overlap and have the same belt width. The upper and lower roller groups and the middle frame used can be universally interchangeable. The spacing between the upper rollers is 1200mm, the spacing between the lower rollers is 3000mm, and the spacing between the middle frame legs is 3000mm. The middle frame legs and the common foundation can be shared.

[0022] like Figure 1 He Ru Figure 3 As shown, an upper material guide trough 13 and a lower material guide trough 23 with an inverted trapezoidal cross section are respectively arranged above the upper belt near the upper spiral tensioner tail 14 and above the lower belt near the lower spiral tensioner tail 24, so as to facilitate receiving materials and avoid spilling. A diversion mechanism is arranged above the lower belt behind the upper spiral tensioner tail 14, which can also divert the coal on the lower belt.

[0023] like Figure 4 and Figure 5 As shown, the upper machine head 11 is fixed on the upper unloading base 12, and an upper driving device chassis 17 is arranged on one side of the upper unloading base 12. The upper driving device chassis 17 is equipped with a motor and a reducer and is connected to the upper unloading roller. The upper unloading base 12 and the upper driving device chassis 17 are composed of two parts, which are separated from each other by bolts in the middle, which is convenient for manufacturing and installation. Figure 6 As shown, the lower machine head 21 is fixed on the lower unloading base 22, and a lower driving device chassis 27 is arranged on one side of the lower unloading base 22. The lower driving device chassis 27 is installed with a motor and a reducer and is transmission-connected to the lower unloading roller.

[0024] The double-layer conveyor belt conveyor for the coal washing system of this embodiment has the same width of the two-layer belt conveyor mechanism, and the conveying lines overlap. In terms of height space, "height separation" is adopted to stack the body parts of the two-layer belt conveyor mechanism and share the H-shaped middle frame legs; in terms of length space, "length separation" is adopted to stagger the head and tail of the two-layer belt conveyor mechanism, which is convenient for unloading and receiving. It has high versatility and strong interchangeability. The parts used in the upper and lower belt conveyor mechanisms are basically the same, which can facilitate the modification of existing belt conveyors and can also be conveniently made into complete equipment for installation.

[0025] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the scope protected by the present invention.

Claims

1. A double-layer conveyor belt conveyor for a coal washing system, characterized in that: The invention comprises an upper belt conveyor mechanism (1), a lower belt conveyor mechanism (2) and a body frame (3), wherein the upper belt conveyor mechanism (1) comprises an upper machine head (11) arranged on an upper platform and an upper spiral tensioning machine tail (14) arranged at the bottom of a trestle, and the lower belt conveyor mechanism (2) comprises a lower machine head (21) arranged on the upper platform and a lower spiral tensioning machine tail (24) arranged at the bottom of the trestle, wherein the lower machine head (21) is located behind the upper machine head (11), and the lower spiral tensioning machine tail (24) is located behind the upper spiral tensioning machine tail (14). The fuselage frame (3) is arranged obliquely downward from the upper platform along the trestle, and an upper trough-type upper roller group, an upper lower roller group, a lower trough-type upper roller group, and a lower lower roller group are arranged on the fuselage frame (3) from top to bottom. The upper belt is arranged along the upper trough-type upper roller group and the upper lower roller group, and the lower belt is arranged along the lower trough-type upper roller group and the lower lower roller group, and the upper belt is parallel to the lower belt. A material guide trough with an inverted trapezoidal cross section is arranged above the upper belt on the side close to the upper spiral tensioner tail (14) and above the lower belt on the side close to the lower spiral tensioner tail (24).

2. The double-layer conveyor belt conveyor for a coal washing system according to claim 1, characterized in that: A flow diversion mechanism (4) is arranged above the lower belt and behind the upper spiral tensioner tail (14).

3. The double-layer transport belt conveyor for a coal washing system according to claim 1, characterized in that: The fuselage frame (3) is composed of a plurality of intermediate frame legs, wherein the intermediate frame legs include two columns (31) arranged in parallel, and a connecting rod (32) is arranged between the two columns (31).

4. The double-layer transport belt conveyor for a coal washing system according to any one of claims 1 to 3, characterized in that: The upper machine head (11) is fixed on the upper unloading base (12), an upper driving device chassis (17) is arranged on one side of the upper unloading base (12), a motor and a reducer are mounted on the upper driving device chassis (17) and the upper unloading roller is connected in a transmission manner; the lower machine head (21) is fixed on the lower unloading base (22), a lower driving device chassis (27) is arranged on one side of the lower unloading base (22), a motor and a reducer are mounted on the lower driving device chassis (27) and the lower unloading roller is connected in a transmission manner.

5. The double-layer conveyor belt conveyor for a coal washing system according to claim 4, characterized in that: The upper unloading base (12) and the upper driving device base frame (17) are both composed of two upper and lower split parts, which are connected by bolts in the middle.

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