Wear-resistant belt conveyor unit

Abstract

The present invention provides a wear-resistant belt conveyor unit, which belongs to the technical field of belt conveyors, comprising a belt conveyor and a plurality of guide troughs connected in sequence, wherein the guide trough is arranged above the belt conveyor, and the guide trough and the belt conveyor are in contact with each other to form a sealed conveying cavity; the guide trough comprises an outer frame, a primary seal, a secondary seal, a feed pipe, a powder suction pipe and a self-lubricating part, and the coal dust in the self-lubricating part will fall onto the belt on the belt conveyor under the action of vibration, and the falling position of the coal dust is on the inclined surface of the belt. Under the vibration of the belt, the coal dust will finally be shaken off at the contact surface between the belt and the primary seal. The characteristics of the coal powder itself have a lubricating effect and it is a good lubricant. During the movement of the belt of the belt conveyor, the coal powder will continuously lubricate the contact surface between the belt and the primary seal, thereby reducing the wear of the primary seal and the belt.

Description

Technical Field

[0001] The invention belongs to the technical field of belt conveyors, and in particular relates to a wear-resistant belt conveyor unit. Background Art

[0002] Belt conveyor units are mainly used for conveying materials. Some belt conveyor units are equipped with a material guide chute. Installing the material guide chute at the receiving end of the belt conveyor can concentrate the material falling from the hopper to the middle of the conveyor belt before reaching the belt speed, restraining the material from scattering outwards and eliminating the phenomenon of dust pollution. The material guide chute can realize efficient and stable conveying of bulk materials, so the material guide chute is widely used in metallurgy, mining, coal and other fields.

[0003] In the prior art, when the coal is transported by the belt conveyor, after the coal falls on the belt conveyor, there is a large amount of coal dust in the coal. After the coal dust and the belt conveyor collide with each other, a large amount of coal dust will be scattered. Therefore, good sealing is required to prevent the coal dust from escaping to the outside of the belt conveyor unit. In order to better play the sealing effect of the guide chute, the sealing plate of the guide chute and the tape on the upper surface of the belt conveyor are fitted together to prevent the coal dust from scattering and the dust from leaking out. However, in the prior art, in order to prevent the coal dust from leaking out and generating coal dust, the sealing plate of the guide chute and the tape on the upper surface of the belt conveyor are tightly fitted, and the tape on the upper surface of the belt conveyor is in a moving state, continuously driving forward to transport the coal. The coal on the conveyor is fixed on the top of the belt conveyor and is in a stationary state. When the sealing plate of the guide trough is in contact with the tape on the upper surface of the belt conveyor for a long time, the sealing plate and the tape will rub against each other and cause wear. During the long operation of the belt conveyor, when the sealing plate is worn to a certain extent and cannot fit with the tape, the sealing plate cannot play a sealing role and coal powder will leak out. Even when the sealing plate is severely worn, it needs to be replaced. What's more serious is that the entire belt needs to be replaced due to local wear here. Not only does it require shutdown for maintenance, which is time-consuming, but the belt is also a relatively important and expensive accessory, and replacement will also result in a significant increase in cost. Summary of the Invention

[0004] Based on this, the present invention provides a wear-resistant belt conveyor unit to solve the technical problem existing in the prior art that the sealing plate of the material guide trough is in contact with the tape on the upper surface of the belt conveyor for a long time, and the sealing plate and the tape rub against each other, resulting in wear of the sealing plate or the tape.

[0005] The technical solution of the present invention to solve the above technical problems is as follows:

[0006] A wear-resistant belt conveyor unit, comprising a belt conveyor and a plurality of guide troughs connected in sequence, wherein the guide trough is arranged above the belt conveyor, and the guide trough and the belt conveyor are in contact with each other to form a sealed conveying cavity; the guide trough comprises an outer frame, a primary seal, a secondary seal, a feed pipe, a powder suction pipe and a self-lubricating component, the outer frame is arranged above the belt conveyor, and the outer frame is fixed to the ground, the primary seal is arranged on both sides of the outer frame, and can move up and down in the vertical direction, the lower end surface of the primary seal is in contact with the belt conveyor, and the secondary seal The component is connected to the primary seal, and the lower end face of the secondary seal is in contact with the belt conveyor, the feed pipe is arranged on the upper end face of the peripheral frame, the powder suction pipe is arranged on the upper end face of the peripheral frame, and the powder suction pipe is communicated with the sealed conveying cavity, the powder suction pipe is used to absorb the coal powder floating in the sealed conveying cavity, the self-lubricating component is arranged on the side wall of the primary seal, and the self-lubricating component is located between the primary seal and the secondary seal, the self-lubricating component is communicated with the powder suction pipe, and part of the coal powder sucked in the powder suction pipe can be collected in the self-lubricating component.

[0007] Preferably, the self-lubricating component includes a main pipe, a branch pipe and a coal powder lubrication groove. The main pipe is connected to the powder suction pipe and is located above the outer periphery. A plurality of branch pipes are provided, which are respectively arranged on the outer periphery frame. One end of the branch pipe is connected to the main pipe, and the other end extends to directly above the coal powder lubrication groove. The coal powder lubrication groove is provided on the side wall of the primary seal and is located between the primary seal and the secondary seal.

[0008] Preferably, the main pipe includes a powder feed pipe, a material guide fan and a blowing pipe. The powder feed pipe is connected to the powder suction pipe, and the powder feed pipe is arranged at an angle. One end of the material guide fan is connected to the powder feed pipe, and the other end is connected to the blowing pipe. The blowing pipe is connected to the branch pipe.

[0009] Preferably, a plurality of powder discharge holes are provided at the bottom end of the pulverized coal lubrication groove.

[0010] Preferably, the primary sealing component includes a primary sealing plate, a sliding support and a wheeled lifting rod. The primary sealing plate is arranged on both sides of the peripheral frame and is in contact with the peripheral frame. The primary sealing plate can move up and down in the vertical direction. The sliding support is fixedly installed on the peripheral frame. The wheeled lifting rod passes through the sliding support and is fixedly connected to the primary sealing plate. The wheeled lifting rod can move up and down along the sliding support and drive the primary sealing plate to slide up and down along the peripheral frame.

[0011] Preferably, the sliding support is provided with the gear groove, and the wheeled lifting rod passes through the gear groove and is connected to the sealing plate.

[0012] Preferably, the wheeled lifting rod includes a connecting rod, a rotating gear, a rotating disk and a pressing piece. The connecting rod passes through the gear groove, one end of the connecting rod is connected to the primary sealing plate, and the other end is connected to the rotating disk. The rotating gear is sleeved on the connecting rod, and the rotating gear and the gear groove are engaged with each other. The pressing piece is arranged on both sides of the rotating gear for fastening the rotating gear.

[0013] Preferably, a movable groove is provided on the primary sealing plate, a concave card groove is further provided on the primary sealing plate, the concave card groove and the movable groove are communicated with each other, and a sunken groove is further provided on the primary sealing plate, the sunken groove and the concave card groove are communicated with each other.

[0014] Preferably, a countersink is provided in the sink trough, and a lock hole is provided on the primary sealing plate, and the lock hole is communicated with the countersink.

[0015] Preferably, the secondary sealing plate includes a sealing curved plate, a convex sliding member and an elastic member. The sealing curved plate is arranged in the movable groove, the convex sliding member is connected to the sealing curved plate, and the convex sliding member is arranged in the concave slot and can slide along the concave slot. The elastic member is arranged in the sinking groove, one end of the elastic member is connected to the convex sliding member, and the other end is arranged in the countersunk hole, and the elastic member is fixed in the countersunk hole through the lock hole.

[0016] Compared with the prior art, the present invention has at least the following advantages:

[0017] Since the self-lubricating component and the powder suction pipe are interconnected, some coal dust will be collected in the self-lubricating component. After the coal falls on the belt conveyor, it will cause the belt on the belt conveyor to vibrate. Since the belt and the guide trough are in contact with each other, the vibration generated will be transmitted to the guide trough. The vibration of the guide trough will drive the self-lubricating component to vibrate. The coal dust in the self-lubricating component will fall on the belt on the belt conveyor under the action of vibration. The falling position of the coal dust is on the inclined surface of the belt. Under the action of the vibration of the belt, the coal dust will finally be shaken off at the contact surface between the belt and the primary seal. The coal dust is coal powder with a small diameter. The characteristics of the coal powder itself have a lubricating effect and it is a good lubricant. During the movement of the belt of the belt conveyor, the coal powder will continuously lubricate the contact surface between the belt and the primary seal, reduce the friction between the belt of the belt conveyor and the primary seal, and achieve the effect of reducing the wear of the primary seal and the belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is the axonometric drawing of the wear-resistant belt conveyor unit.

[0019] Figure 2 This is the front view of the wear-resistant belt conveyor unit.

[0020] Figure 3 This is the left view of the wear-resistant belt conveyor unit.

[0021] Figure 4 for Figure 3 Local method diagram.

[0022] Figure 5 Schematic diagram of pulverized coal lubrication tank.

[0023] Figure 6 This is an axonometric view of the material guide chute (excluding the secondary seal).

[0024] Figure 7 This is the left side view of the material guide chute (excluding the secondary seal).

[0025] Figure 8 This is an axonometric view from below of the material guide chute (excluding the secondary seal).

[0026] Figure 9 for Figure 8 Partial enlarged image.

[0027] Figure 10 This is an axonometric view of the secondary seal.

[0028] Figure 11 FIG. 8 is a schematic diagram of a self-lubricating component 80 according to another preferred embodiment.

[0029] In the figure: belt conveyor 10, adhesive tape 110, material guide trough 20, peripheral frame 30, primary seal 40, primary sealing plate 410, movable groove 411, concave card groove 412, sinking groove 413, sinking hole 414, locking hole 415, sliding support 420, gear groove 421, wheeled lifting rod 430, connecting rod 431, rotating gear 432, rotating disk 433, pressing member 434, secondary seal 50, sealing curved plate 510, convex sliding member 520, elastic member 530, feeding pipe 60, powder suction pipe 70, discharge pipe 701, receiving space 702, guide member 703, self-lubricating component 80, main pipe 810, powder feeding pipe 811, material guide fan 812, blowing pipe 813, branch pipe 820, coal powder lubrication groove 830, lower powder hole 831, sealed conveying cavity 90. Implementation Method

[0030] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The following will further describe the technical solution of the present invention in conjunction with the drawings of the embodiments of the present invention, and the present invention is not limited to the following specific embodiments.

[0031] It should be understood that the same or similar numbers in the drawings of the embodiments correspond to the same or similar parts. In the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "front", "back", "left", "right", "top", "bottom" and the like indicating an orientation or positional relationship, they are based on the orientation or positional relationship shown in the drawings. This is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation of this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to the specific circumstances.

[0032] Please see Figure 1, a wear-resistant belt conveyor unit, comprising a belt conveyor 10 and several guide troughs 20 connected in sequence, the guide trough 20 is arranged above the belt conveyor 10, and the guide trough 20 and the belt conveyor 10 are in contact with each other to form a sealed conveying cavity 90; the guide trough 20 includes an outer frame 30, a primary seal 40, a secondary seal 50, a powder suction pipe 70 and a self-lubricating component 80 (the powder suction pipe 70 and the self-lubricating component 80 constitute a three-level seal), the outer frame 30 is arranged above the belt conveyor 10, and the outer frame 30 is fixed to the ground, the primary seal 40 is arranged on both sides of the outer frame 30, and can move up and down in the vertical direction, the lower end surface of the primary seal 40 is in contact with the belt conveyor 10 Fitting, the secondary seal 50 is connected to the primary seal 40, and the lower end face of the secondary seal 50 is fitted with the belt conveyor 10, the powder suction pipe 70 is arranged on the upper part of the outer frame 30, and the powder suction pipe 70 is communicated with the sealed conveying cavity 90, the feed pipe 60 is arranged above the outer frame 30, the powder suction pipe 70 is used to suck the coal powder floating in the sealed conveying cavity 90, the self-lubricating component 80 is arranged on the side wall of the primary seal 40, and the self-lubricating component 80 is located between the primary seal 40 and the secondary seal 50, the self-lubricating component 80 is communicated with the powder suction pipe 70, and part of the coal powder sucked in the powder suction pipe 70 can be collected in the self-lubricating component 80. Coal falls from the feed pipe 60 onto the belt conveyor 10, and is then transported by the belt conveyor 10. When the coal falls onto the belt conveyor 10, a large amount of coal powder is mixed in the coal, which will stir up coal dust and float in the sealed conveying cavity 90. The primary seal 40 and the secondary seal 50 will prevent the coal dust from floating to the outside of the belt conveyor 10 group, thereby preventing dust from leaking out. In a preferred embodiment, sealing members, such as curtains or shielding materials, are provided at the front and rear openings of the outer frame 30 to keep the sealed conveying cavity 90 in a closed state.The coal dust in the sealed conveying cavity 90 is sucked and collected under the action of the powder suction pipe 70, thereby achieving the effect of dust reduction. When the powder suction pipe 70 absorbs the coal dust, since the self-lubricating component 80 is connected to the powder suction pipe 70, part of the coal dust will be collected in the self-lubricating component 80. After the coal falls on the belt conveyor 10, it will cause the belt 110 on the belt conveyor to vibrate. Since the belt 110 and the guide trough 20 fit together, the vibration generated will be transmitted to the guide trough 20. The vibration of the guide trough 20 will drive the self-lubricating component 80 to vibrate. The coal dust in the self-lubricating component 80 will fall on the belt 110 on the belt conveyor under the action of vibration. The falling position of the coal dust is on the inclined surface of the belt 110 On the other hand, under the vibration of the belt 110, the coal dust will eventually fall on the contact surface between the belt 110 and the primary seal 40. The coal dust is coal powder with a small diameter. This solution uses the lubricating properties of coal powder itself and is a good lubricant. During the movement of the belt 110 of the belt conveyor 10, the coal powder will continue to lubricate the contact surface between the belt 110 and the primary seal 40, reducing the friction between the belt 110 of the belt conveyor 10 and the primary seal 40, thereby reducing the wear of the primary seal 40 and the belt 110. At the same time, the self-lubricating component 80 is located between the primary seal 40 and the secondary seal 50, and the coal dust in the self-lubricating component 80 will not drift to the outside of the belt conveyor 10 group, preventing the coal dust from leaking out.

[0033] For further information, see Figures 1 to 4 The self-lubricating assembly 80 includes a main pipe 810, a branch pipe 820 and a pulverized coal lubrication groove 830. The main pipe 810 is interconnected with the powder suction pipe 70 and is located above the outer space. A plurality of branch pipes 820 are provided, which are respectively arranged on the outer frame 30. One end of the branch pipe 820 is interconnected with the main pipe 810, and the other end extends to directly above the pulverized coal lubrication groove 830. The pulverized coal lubrication groove 830 is provided on the side wall of the primary seal 40 and is located between the primary seal 40 and the secondary seal 50. Part of the coal dust in the powder suction pipe 70 will enter the main pipe 810, and the rest of the coal dust will be sucked by the powder suction pipe 70 and collected. The coal dust in the main pipe 810 will enter each of the branch pipes 820, and the coal dust in the branch pipe 820 will fall into the coal powder lubrication groove 830. When some coal dust accumulates on the wall of the main pipe 810 or the branch pipe 820, the vibration of the belt conveyor will drive the guide trough 20 to vibrate. The vibration of the guide trough 20 will drive the coal dust on the wall of the main pipe 810 or the branch pipe 820 to fall into the coal powder lubrication groove 830, thereby preventing the coal dust from clogging the pipe.

[0034] Specifically, the branch pipe 820 includes a hard pipe and a retractable hose. The hard pipe includes two sections, one section is connected to the main pipe 810, and the other section is arranged above the coal powder lubrication groove 830. The retractable hose is arranged between the two sections of the hard pipe, and the retractable hose can be stretched and contracted.

[0035] For further information, see Figure 3 The main pipe 810 includes a powder feeding pipe 811, a material guiding fan 812 and a blowing pipe 813. The powder feeding pipe 811 is connected to the powder suction pipe 70, and the powder feeding pipe 811 is arranged obliquely. The inclined powder feeding pipe 811 will not allow more coal dust to enter the powder feeding pipe 811. At the same time, when coal dust accumulates or is blocked in the powder feeding pipe 811, the coal dust accumulated in the powder feeding pipe 811 will fall back into the powder suction pipe 70 under the vibration of the material guiding trough 20. One end is connected to the powder inlet pipe 811, and the other end is connected to the blowing pipe 813. The material guiding fan 812 mainly plays the role of draining coal dust to prevent coal dust from accumulating or clogging the pipeline. At the same time, through the forward and reverse rotation of the material guiding fan 812, the coal dust blown into the powder inlet pipe 811, the blowing pipe 813 and each branch pipe 820 can be cleaned. The blowing pipe 813 is connected to the branch pipe 820. A connecting nozzle is provided on the blowing pipe 813, which can be detachably connected to the branch pipe 820.

[0036] Further, see Figure 5 The lower end of the pulverized coal lubrication groove 830 is provided with a plurality of pulverized coal holes 831. Pulverized coal that falls into the pulverized coal lubrication groove 830, under the vibration of the pulverized coal lubrication groove 830, evenly flows out of each of the pulverized coal holes 831 and falls onto the belt 110 of the belt conveyor 10 below. The inclined position of the belt 110, coupled with the vibration of the belt during movement, causes the pulverized coal to naturally flow toward the contact point between the primary seal 40 and the belt 110. The pulverized coal that falls between the two not only lubricates the seal but also reseals the gap between them. Furthermore, due to the inherent vibration of the pulverized coal lubrication groove 830, the pulverized coal will not clog the pulverized coal holes 831.

[0037] In the above solution, the guide fan 812 is used to assist the flow of pulverized coal and prevent blockage. However, since the pulverized coal collected by the pulverized coal suction pipe 70 is extremely fine in particle size, after being pumped into the pulverized coal lubrication tank 830 by the guide fan 812, the problem of secondary dust flying still exists due to unstable wind force. Figure 11In another preferred embodiment, the material guide fan 812 is not provided, and the powder suction pipe 70 is still used to connect to the external fan. A discharge pipe 701 is provided above 30, and the upper end of the discharge pipe 701 is directly opposite to the lower end of the powder suction pipe 70, but is not connected. A receiving space 702 is provided between the powder suction pipe 70 and the discharge pipe 701. The receiving space 702 surrounds the lower end of the powder suction pipe 70 and the upper end of the discharge pipe 701. The diameter of the upper part of the receiving space 702 is larger than that of the powder suction pipe 70 and the discharge pipe 701, so that after the coal powder enters the receiving space 702 from the discharge pipe 701, the space expands instantly and the pressure is released instantly, which has the effect of slowing down the flow rate of the coal powder and stabilizing the state of the coal powder. In addition, a guide member 703 is provided inside the discharge pipe 701. The guide member 703 is in the shape of an inverted trumpet, the mouth of which is higher than the height of the upper end of the discharge pipe 701, and the mouth extends into the receiving space 702. The function of this guide member is to direct the sucked pulverized coal into the receiving space 702 as it escapes the mouth of the discharge pipe 701, rather than being sucked into the powder suction pipe 70 in large quantities. The upper portion of the receiving space 702 has a top portion extending obliquely upward from the center toward the outside. This is intended to ensure that the pulverized coal, guided by the guide member 703, enters the receiving space 702 and flows along a vortex at an oblique angle, then is blocked and falls to the lowest point of the receiving space 702. This vortex flow ensures that as much pulverized coal as possible falls to the bottom of the receiving space 702, facilitating its flow into the branch pipe 820. The lowest point of the receiving space 702 is connected to the branch pipe 820. Because the discharge pipe 701 is directly fixed to the outer frame 30, although the outer frame 30 has external support, it is still in contact with the conveyor belt. The vibration of the conveyor belt drives the collected pulverized coal down the branch pipe 820 to the set position, providing lubrication and anti-wear functions. This solution eliminates the need for a separate drive mechanism for collecting pulverized coal, nor does it require changes to the fan mechanism outside the pulverized coal collection duct 70. Instead, through a clever design between the pulverized coal collection duct 70 and the self-lubricating assembly 80, the existing technical issues are resolved mechanically. Furthermore, the collected pulverized coal flows down through the vibrations of the conveyor's own movement, resulting in a steady flow rate and no secondary dispersal. Furthermore, the height difference between the self-lubricating assembly 80 and the conveyor belt eliminates the need for an external power source, such as a fan.

[0038] The opening diameter of the bell mouth of the guide member 703, the diameter of the discharge pipe 701, and the pressure of the fan connected to the powder suction pipe 70 can be adapted to each other to prevent the coal powder from being blocked by the guide member 703 and to ensure that the coal powder is drawn into the receiving space 702 by the fan outside the powder suction pipe 70 with sufficient suction force. The receiving space 702 can be formed with a fixed structure in the upper and lower halves, such as a metal structure or a flexible material supporting a keel, similar to the internal support structure of a bag.

[0039] For further optimization, see Figures 6 to 9The primary sealing member 40 includes a primary sealing plate 410, a sliding support 420 and a wheeled lifting rod 430. The primary sealing plate 410 is arranged on both sides of the peripheral frame 30 and is in contact with the peripheral frame 30. The primary sealing plate 410 can move up and down along the vertical direction. The sliding support 420 is fixedly installed on the peripheral frame 30. The wheeled lifting rod 430 passes through the sliding support 420 and is fixedly connected to the primary sealing plate 410. The wheeled lifting rod 430 can move up and down along the sliding support 420 and drive the primary sealing plate 410 to slide up and down along the peripheral frame 30. During the process of transporting materials by the belt conveyor 10, the materials are transported in the sealed conveying cavity 90. In order to prevent the materials on the belt conveyor 10 from overflowing to the outside of the belt conveyor 10 and the anti-overflow frame, the wheeled lifting rod 430 is adjusted by rotating, and the wheeled lifting rod 430 moves along the sliding support 420, and the wheeled lifting rod 430 moves up and down with the primary sealing plate 410. When the lower bottom end of the primary sealing plate 410 is in contact with the tape 110 of the belt conveyor 10, the wheeled lifting rod 430 stops moving, and the wheeled lifting rod 430 is fixed on the sliding support 420 and maintained in a relatively static state, thereby keeping the primary sealing plate 410 and the side plate relatively static. The wheeled lifting rod 430 drives the primary sealing plate 410 to move, and the operation is simple. The primary sealing plate 410 can be easily controlled to be adjusted to fit with the adhesive tape 110 of the belt conveyor 10, thereby achieving the effect of preventing the material from spilling. At the same time, when the material falls on the adhesive tape 110 of the belt conveyor 10, the material and the adhesive tape 110 collide with each other to generate vibration. After the vibration is transmitted to the primary sealing plate 410, the primary sealing plate 410 transmits the vibration to the wheeled lifting rod 430, and the vibration is transmitted through multiple stages. Afterwards, the loosening of the connection between the wheeled lifting rod 430 and the sliding support 420 is greatly slowed down, and the loosening of the sealing plate is avoided. In addition, the movement of the primary sealing plate 410 is controlled by the wheeled lifting rod 430, and the wheeled lifting rod 430 and the sliding support 420 control the movement of the primary sealing plate 410 with each other, which is an indirect control method, further avoiding the loosening of the sealing of the primary sealing plate 410, preventing materials from being scattered outside the belt conveyor 10, and avoiding dust leakage, forming a first sealing effect.

[0040] For further description, see Figure 8The sliding support 420 is provided with a gear slot 421, through which the wheeled lifting rod 430 passes to connect to the sealing plate. The gear slot 421 is a long strip of toothed grooves, and the wheeled lifting plate can move up and down along the gear slot 421 a certain distance, ensuring that the wheeled lifting rod 430 can also drive the primary sealing plate 410 to rise or fall to a certain height.

[0041] Specifically, the gear groove 421 is provided with a rack on only one side, and no rack on the other side.

[0042] For further information, see Figure 7 The wheeled lifting rod 430 includes a connecting rod 431, a rotating gear 432, a rotating disk 433 and a pressing member 434. The connecting rod 431 passes through the gear slot 421. One end of the connecting rod 431 is connected to the primary sealing plate 410, and the other end is connected to the rotating disk 433. The rotating gear 432 is sleeved on the connecting rod 431, and the rotating gear 432 is engaged with the gear slot 421. The pressing member 434 is arranged on both sides of the rotating gear 432 for fastening the rotating gear 432. By rotating the rotating disk 433, the rotating disk 433 drives the connecting rod 431 to rotate by forward or reverse rotation, and the connecting rod 431 drives the rotating gear 432 to rotate, and the rotating gear 432 is engaged with the rack in the gear groove 421. The gear rotates, driving the rotating gear 432 to move along the rack, and then driving the primary sealing plate 410 to move up and down. When the primary sealing plate 410 is in contact with the tape 110 on the belt conveyor 10, the clamping piece 434 is adjusted and moved to engage with the rotating gear 432 to prevent the rotating gear 432 from continuing to rotate.

[0043] Specifically, the connecting rod 431 is connected to the primary sealing plate 410, and a pin hole is provided at one end of the connecting rod 431. The primary sealing plate 410 is also provided with a pin hole. During installation, the connecting rod 431 is directly installed into the primary sealing plate 410 and fixed with a pin to prevent rotation between the connecting rod 431 and the primary sealing plate 410.

[0044] Specifically, the clamping member 434 includes a pressure block and an adjusting nut. The pressure block is sleeved on the connecting rod 431, and the pressure block is located on one side of the rotating gear 432. The adjusting nut is sleeved on the connecting rod 431. The pressure block plays a positioning role to ensure that the rotating gear 432 can engage in the gear groove 421. The adjusting nut is located on the other side of the rotating gear 432. The adjusting nut can move along the connecting rod 431 to tighten or loosen the rotating gear 432. When the rotating gear 432 needs to be rotated, the adjusting nut is loosened and the rotating gear 432 is rotated along the gear groove 421. When the rotating gear 432 does not need to be rotated, the adjusting nut is tightened so that the adjusting nut and the rotating gear 432 are engaged with each other to prevent the adjusting nut from rotating.

[0045] Furthermore, the peripheral frame 30 includes a peripheral bracket, a top plate and a side plate. The peripheral bracket is arranged above the belt conveyor 10 and is fixed on the ground. The top plate is fixed on the peripheral bracket. The side plates are arranged on both sides of the top plate, and the first-level sealing plate 410 is in contact with the side plates, and the first-level sealing plate 410 can slide up and down along the side plates.

[0046] Specifically, the powder suction pipe 70 is provided on the top plate and is connected to the powder suction pipe 70. A feed port is also provided on the top plate. The feed port is used to load coal onto the belt conveyor 10 and transport it through the belt conveyor 10. When the coal falls on the belt conveyor 10, it will stir up coal dust, and the coal dust will splash upward, and the powder suction pipe 70 on the top plate is convenient for absorbing the scattered coal dust.

[0047] Furthermore, a pair of baffles are provided on the side plate, and the baffles are provided on both sides of the side plate. The primary sealing plate 410 is located between the pair of baffles. When the primary sealing plate 410 and the side plate move relative to each other, the baffles are used to prevent the primary sealing plate 410 from shifting left and right.

[0048] For further description, see Figures 8 and 9 The first-level sealing plate 410 is provided with a movable groove 411, and the first-level sealing plate 410 is also provided with a concave card groove 412, and the concave card groove 412 is communicated with the movable groove 411. The first-level sealing plate 410 is also provided with a sinking groove 413, and the sinking groove 413 is communicated with the concave card groove 412.

[0049] Furthermore, a countersink 414 is provided in the sink 413 , and a locking hole 415 is provided on the primary sealing plate 410 . The locking hole 415 is connected to the countersink 414 . Generally, two or more countersinks 414 are provided.

[0050] Further, see Figure 10 The secondary sealing plate is provided with a sealing curved plate 510, a convex sliding member 520 and an elastic member 530. The sealing curved plate 510 is arranged in the movable groove 411, the convex sliding member 520 is connected to the sealing curved plate 510, and the convex sliding member 520 is arranged in the concave card groove 412 and can slide along the concave card groove 412. The elastic member 530 is arranged in the sinking groove 413, one end of the elastic member 530 is connected to the convex sliding member 520, and the other end is arranged in the countersunk hole 414, and the elastic member 530 is fixed in the countersunk hole 414 through the lock hole 415. During use, first connect the sealing curved plate 510 and the convex sliding member 520, and install the convex sliding member 520 in the concave card groove 412. When the convex sliding member 520 is installed in the concave card groove 412, the sealing curved plate 510 is located in the movable groove 411, and the elastic member 530 is arranged in the sinking groove 413. One end of the elastic member 530 is connected to the convex sliding member 520, and the other end is arranged in the countersunk hole 414. When the elastic member 530 is installed in the countersunk hole 414, use a pin to insert into the lock hole 415 to fix the elastic member 530 in the countersunk hole 414. When the sealing curved plate 510 is set in the movable groove 411 and is not subjected to force, the elastic member 530 is at its maximum extension length. As the primary sealing plate 410 gradually approaches the tape 110 of the belt conveyor 10, the sealing curved plate 510 first contacts the belt conveyor 10. The sealing curved plate 510 is subjected to force, pushing the convex sliding member 520 to slide along the concave slot 412. The convex sliding member 520 pushes the elastic member 530 to contract, allowing the sealing curved plate 510 and the tape 110 to continuously contact each other, thereby enhancing the sealing effect and forming a secondary seal.

[0051] Furthermore, the material generally falls onto the belt conveyor from above the material guide trough 20, and the material contacts the belt conveyor's tape 110, which is subjected to a large impact force, causing the tape 110 to deform. After the tape 110 is deformed, if the tape 110 deviates to the downward direction, the sealing curved plate 510 cannot fit with the tape 110, and the elastic member 530 will push the convex sliding member 520 to move in the concave slot 412, pushing the sealing curved plate 510 to continuously fit with the tape 110, thereby achieving a continuous sealing effect.

[0052] Furthermore, when the curved sealing plate 510 is severely worn or damaged, it is only necessary to remove the curved sealing plate 510 connected to the convex sliding member 520 and replace the curved sealing plate 510 with a new one, install it in the movable groove 411, and connect it to the convex sliding member 520. This facilitates easy use and replacement. Specifically, the curved sealing plates 510 with different curvatures can be used to facilitate bonding with different adhesive tapes 110.

[0053] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Those skilled in the art will appreciate that other variations or modifications can be made based on the above description. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention are intended to be included within the scope of protection of the present invention.

Claims

1. A wear-resistant belt conveyor unit, characterized in that: It includes a belt conveyor and several guide troughs connected in sequence, the guide trough is arranged above the belt conveyor, and the guide trough and the belt conveyor are in contact with each other to form a sealed conveying cavity; the guide trough includes an outer frame, a primary seal, a secondary seal, a feed pipe, a powder suction pipe and a self-lubricating component, the outer frame is arranged above the belt conveyor, and the outer frame is fixed to the ground, the primary seal is arranged on both sides of the outer frame, and can move up and down in the vertical direction, the lower end surface of the primary seal is in contact with the belt conveyor, and the secondary seal is in contact with the primary seal. The sealing member is connected, and the lower end surface of the secondary sealing member is in contact with the belt conveyor, the feeding pipe is arranged on the upper end surface of the peripheral frame, the powder suction pipe is arranged on the upper end surface of the peripheral frame, and the powder suction pipe is communicated with the sealed conveying cavity, the powder suction pipe is used to absorb the coal powder floating in the sealed conveying cavity, the self-lubricating component is arranged on the side wall of the primary sealing member, and the self-lubricating component is located between the primary sealing member and the secondary sealing member, the self-lubricating component is communicated with the powder suction pipe, and part of the coal powder sucked in the powder suction pipe can be collected in the self-lubricating component; The self-lubricating component includes a main pipe, a branch pipe and a coal powder lubrication groove. The main pipe is connected to the powder suction pipe and is located above the outer portion. A plurality of branch pipes are provided, which are respectively arranged on the outer frame. One end of the branch pipe is connected to the main pipe, and the other end extends to directly above the coal powder lubrication groove. The coal powder lubrication groove is provided on the side wall of the primary seal and is located between the primary seal and the secondary seal.

2. The wear-resistant belt conveyor unit according to claim 1, characterized in that: The main pipe includes a powder feed pipe, a material guide fan and a blowing pipe. The powder feed pipe is connected to the powder suction pipe, and the powder feed pipe is arranged obliquely. One end of the material guide fan is connected to the powder feed pipe, and the other end is connected to the blowing pipe. The blowing pipe is connected to the branch pipe.

3. The wear-resistant belt conveyor unit according to claim 1, characterized in that: A plurality of powder discharge holes are provided at the bottom end of the coal powder lubrication groove.

4. The wear-resistant belt conveyor unit according to claim 1, characterized in that: The primary sealing component includes a primary sealing plate, a sliding support and a wheeled lifting rod. The primary sealing plate is arranged on both sides of the peripheral frame and is in contact with the peripheral frame. The primary sealing plate can move up and down in the vertical direction. The sliding support is fixedly installed on the peripheral frame. The wheeled lifting rod passes through the sliding support and is fixedly connected to the primary sealing plate. The wheeled lifting rod can move up and down along the sliding support and drive the primary sealing plate to slide up and down along the peripheral frame.

5. The wear-resistant belt conveyor unit according to claim 4, characterized in that: A gear groove is provided on the sliding support, and the wheeled lifting rod passes through the gear groove and is connected to the sealing plate.

6. The wear-resistant belt conveyor unit according to claim 5, characterized in that: The wheeled lifting rod includes a connecting rod, a rotating gear, a rotating disk and a pressing piece. The connecting rod passes through the gear groove. One end of the connecting rod is connected to the primary sealing plate, and the other end is connected to the rotating disk. The rotating gear is sleeved on the connecting rod, and the rotating gear and the gear groove are engaged with each other. The pressing piece is arranged on both sides of the rotating gear for fastening the rotating gear.

7. The wear-resistant belt conveyor unit according to claim 5, characterized in that: A movable groove is provided on the primary sealing plate, a concave card groove is further provided on the primary sealing plate, the concave card groove and the movable groove are communicated with each other, and a sunken groove is further provided on the primary sealing plate, the sunken groove and the concave card groove are communicated with each other.

8. The wear-resistant belt conveyor unit according to claim 7, characterized in that: A countersink is provided in the sink trough, and a lock hole is provided on the primary sealing plate. The lock hole is communicated with the countersink.

9. The wear-resistant belt conveyor unit according to claim 8, characterized in that: The secondary seal includes a sealing curved plate, a convex sliding member and an elastic member. The sealing curved plate is arranged in the movable groove, the convex sliding member is connected to the sealing curved plate, and the convex sliding member is arranged in the concave slot and can slide along the concave slot. The elastic member is arranged in the sinking groove, one end of the elastic member is connected to the convex sliding member, and the other end is arranged in the countersunk hole, and the elastic member is fixed in the countersunk hole through the lock hole.

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