A belt conveyor material scattering collecting and returning device and belt conveyor

Abstract

The application discloses a belt machine material scattering collecting and returning device, which comprises a first screw conveyor, a second screw conveyor, a third screw conveyor and a guide plate. The first screw conveyor conveys scattered material to the second screw conveyor, the second screw conveyor conveys material to the third screw conveyor in an inclined manner, and the third screw conveyor conveys material to the top of the belt machine, thereby completing the collecting and returning of the scattered material of the belt machine. The application discloses a belt machine comprising the belt machine material scattering collecting and returning device. The application can cover the material at the scattering points of the whole travel of the belt machine, and re-convey the material to the top of the belt machine, thereby completing the collecting and returning of the scattered material of the belt machine.

Description

Technical Field

[0001] This invention relates to belt conveyor technology in industrial material transport equipment, and more specifically, to a collection and return device for material spilled from a belt conveyor, and a belt conveyor. Background Technology

[0002] Material spillage is a common fault in belt conveyors, frequently occurring at the tail end, suspended sections of the belt, and transfer points. Spillage at transfer points primarily occurs in the hopper and chute, while spillage at the tail end is mainly caused by material backflow at the transfer point. This is particularly severe on steeply angled belts, resulting in a large amount of material spilling onto the ground below the tail end. This significant material spillage not only causes economic losses during transport but also requires substantial manual cleaning.

[0003] Existing patent applications, such as patent application number 201922059561.1X, disclose a conveyor belt spillage recovery device, including a spillage collection device fixed to the underside of the belt at the tail end of the conveyor belt. A receiving plate is located on the underside of the belt at the tail end of the conveyor belt. The upper opening of the spillage collection device is located at the lower part of the receiving plate. The spillage collection device is a collection cylinder. An online collection device is located at the lower part of the bottom of the spillage collection device, capable of conveying the collected material to the upper side of the conveyor belt inlet. According to the definition of a conveyor belt, material is transported from the tail end to the head end. Therefore, the tail end described in this patented technology is actually the head end of the conveyor belt. The material spilled during the return stroke from the head end is actually conveyed to the collection device above the tail end via a conveyor device to complete the material recovery. Therefore, this patented technology can only solve the spillage situation under the belt during the return stroke at the head end, and it is not universally applicable to spillage situations in other parts of the conveyor belt. Furthermore, for long-stroke belts, the corresponding online recovery device is long and costly. Meanwhile, in cases where the machine head section has a hopper for conveying material downstream via a belt conveyor, material spillage will not occur because the machine head section is enclosed in the hopper.

[0004] For example, patent publication number CN 111762528 A relates to a bottom-mounted front-conveyor belt conveyor, including a first conveyor belt, a screw conveyor, a second conveyor belt, and a third conveyor belt. The first conveyor belt is inclined, and the upper end of the screw conveyor has a screw conveyor inlet that mates with the upper end of the first conveyor belt. The screw conveyor also has a screw conveyor outlet located directly above the second conveyor belt, which is inclined. The third conveyor belt is horizontal, and a hopper is positioned above one end of the third conveyor belt. In this patented technology, the third conveyor belt is placed directly below the first conveyor belt, and the material spilled from the head of the drive roller falls directly into the hopper. It is then conveyed by the third conveyor belt to the receiving hopper of the second conveyor belt, achieving automatic recovery of all spilled material from the head of the first conveyor belt and most of the front-end spillage. However, this patented technology can only collect spilled material from the head of the first conveyor belt's drive roller and most of the front-end chute plates; it is not applicable to other spillage points along the entire conveyor's stroke. Summary of the Invention

[0005] In view of the above-mentioned defects in the prior art, the purpose of the present invention is to provide a collection and return device for material spilled from a belt conveyor, which can cover the material spilled at the entire stroke of the belt conveyor and transport it back to the top of the belt conveyor, thereby completing the collection and recovery of material spilled from the belt conveyor.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] On one hand, a device for collecting and returning material spilled from a belt conveyor includes:

[0008] The first screw conveyor is arranged parallel to the material spreading component of the belt conveyor and is used to receive the material spread by the material spreading component;

[0009] The second screw conveyor is located on the side of the belt conveyor, and the conveying direction is from low to high. The discharge port of the first screw conveyor is located above the lower part of the second screw conveyor.

[0010] The third screw conveyor is horizontally positioned along the width of the belt conveyor. The discharge port of the second screw conveyor is located above the third screw conveyor, and the discharge port of the third screw conveyor is located above the belt conveyor.

[0011] A guide plate is inclinedly disposed on the first screw conveyor and located below the spreading component, for guiding the material from the spreading component to the first screw conveyor;

[0012] The first screw conveyor transports the spilled material to the second screw conveyor, the second screw conveyor tilts and transports the material to the third screw conveyor, and the third screw conveyor transports the material above the belt conveyor, thus completing the collection and return of the material spilled from the belt conveyor.

[0013] Preferably, the collection and recycling device further includes:

[0014] A storage trough is provided on the ground where the belt conveyor is installed, and the lower part of the second screw conveyor extends into the storage trough;

[0015] A cleaning robot is used to sweep up fallen materials on the ground and push them into the storage tank.

[0016] Preferably, the conveying surface of the first screw conveyor is U-shaped and its length is greater than the length of the spreading component.

[0017] Preferably, the lower edge of the guide plate is connected to one side edge of the first screw conveyor, and the height of the upper edge is lower than the height of the feeding point of the feeding component;

[0018] A baffle plate is inclinedly provided on the other side edge of the first screw conveyor.

[0019] Preferably, the cross-sections of the guide vane and the baffle are configured as an inverted trapezoidal structure, with the larger section at the top and the smaller section at the bottom.

[0020] Preferably, the deflector is assembled from multiple metal plates, and the metal plates are connected by a detachable structure.

[0021] The surface of the metal plate is grooved.

[0022] Preferably, the material spreading component includes the machine side of the belt conveyor, the head roller, and the tail roller.

[0023] Preferably, corresponding to the material spreading on the machine side, the first screw conveyor is arranged parallel to the outside of the intermediate frame of the belt conveyor, the height of the guide plate is lower than the edge height of the belt conveyor, and the upper edge of the guide plate is located in the projection plane of the belt width direction of the belt conveyor.

[0024] Preferably, corresponding to the head roller and the tail roller, the first screw conveyor is arranged parallel to the side of the head roller and the tail roller.

[0025] On the other hand, a belt conveyor includes one or more sets of collection and return devices for the material spilled from the belt conveyor.

[0026] Preferably, when multiple sets of the collection and return devices are arranged, the discharge port of the second screw conveyor is located above the first screw conveyor of the adjacent set, so that the third screw conveyor of the set is omitted.

[0027] The present invention provides a material collection and return device for conveyor belt spillage, covering all spillage points along the entire conveyor belt's stroke. This effectively reduces material spillage, significantly decreasing the amount of material transported by the conveyor belt falling to the ground, thus reducing the workload of subsequent manual cleaning. Simultaneously, the material return collection reduces material loss during transport, resulting in considerable economic benefits. Further improvements to this invention can address material spillage issues, enabling automatic material cleaning and avoiding heavy and dangerous manual labor. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of the collection and recycling device of the present invention;

[0029] Figure 2 yes Figure 1 A top-down view;

[0030] Figure 3 This is a schematic diagram of the collection and return device of the present invention arranged on the side of the machine;

[0031] Figure 4 This is a schematic diagram of the material collection and return device of the present invention arranged on the tail roller;

[0032] Figure 5 This is a schematic diagram of the structure of the storage tank in the collection and return device of the present invention;

[0033] Figure 6 This is a schematic diagram of the cleaning robot in the collection and return device of the present invention. Detailed Implementation

[0034] To better understand the above-mentioned technical solutions of the present invention, the technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0035] Combination Figure 1 and Figure 2 As shown, the present invention provides a collection and return device for material spillage from a belt conveyor, comprising:

[0036] The first screw conveyor 1 is arranged parallel to the material spreading component of the belt conveyor (or the intermediate frame 9 of the belt conveyor) and is installed on the side of the discharge sealing cover 10 of the upstream belt conveyor. The conveying direction of the first screw conveyor 1 is consistent with the conveying direction of the belt conveyor and is used to receive the material scattered by the material spreading component.

[0037] The second screw conveyor 2 is installed at an angle on the side of the belt conveyor, and the conveying direction is from low to high. The discharge port 11 of the first screw conveyor 1 is located above the low part of the second screw conveyor 2 and is used for lifting the spread material.

[0038] The third screw conveyor 3 is installed horizontally in the width direction of the belt conveyor and perpendicular to the intermediate frame 9. The high discharge port 21 of the second screw conveyor 2 is located near the center line of the third screw conveyor 3. The discharge port 31 of the third screw conveyor 3 is located above the belt conveyor. The conveying direction of the third screw conveyor 3 is from the side of the belt conveyor to the center of the belt conveyor, and it is used for the return transport of spilled material.

[0039] The guide plate 4 is installed at an angle on the first screw conveyor 1 and located below the spreading component. Due to gravity, the material is guided by the guide plate 4 to the first screw conveyor 1.

[0040] The first screw conveyor 1 transports the spilled material to the second screw conveyor 2, which in turn transports the material at an incline to the third screw conveyor 3. The third screw conveyor 3 then transports the material above the belt conveyor, completing the collection and return of spilled material near the belt conveyor transfer point.

[0041] Combination Figure 5 and Figure 6 As shown, the collection and recycling device of the present invention further includes:

[0042] The storage tank 13 is located on the ground where the belt conveyor is installed. The lower part of the second screw conveyor 2 extends into the storage tank 13 to transport the material in the storage tank 13 to a higher position.

[0043] The cleaning robot 14 is used to sweep up the fallen materials on the ground and push them into the storage tank 13.

[0044] Combined Figure 1 and Figure 2 As shown, the conveying surface of the first screw conveyor 1 is U-shaped, with an opening and no cover plate, and its length is greater than the length of the material spreading component.

[0045] The lower edge of the guide plate 4 is connected to one side edge of the first screw conveyor 1 near the intermediate frame 9, and the height of the upper edge is lower than the height of the feeding point of the feeding component.

[0046] A baffle plate 5 is inclinedly installed on the other side of the first screw conveyor 1, away from the material spreading component. The baffle plate 5 serves to stop the material from being pushed out of the first screw conveyor 1 due to inertia.

[0047] The cross-sections of the guide vane 4 and the baffle 5 are designed as an inverted trapezoidal structure with a larger top and a smaller bottom to increase the constraint area.

[0048] The guide plate 4 is composed of multiple metal plates, which are connected by a detachable structure. The surface of the metal plates is grooved to avoid the positions of the idler roller and the idler roller frame 8.

[0049] The material spreading components can be the side of the belt conveyor (including the suspended section of the belt, the transfer point, etc.), the head roller, and the tail roller.

[0050] The material collection and return device of this invention can be arranged in multiple sets along the entire line at locations on the belt conveyor where material is easily spilled.

[0051] When multiple sets of the collection and return device of the present invention are arranged and the adjacent sets are close in position, the discharge port 21 of the second screw conveyor 2 can be located above the first screw conveyor 1 of the adjacent set, and the third screw conveyor 3 of this set can be omitted.

[0052] In response to the situation of material spillage on the side of the belt conveyor, the first screw conveyor 1 is installed parallel to the outside of the intermediate frame 9 of the belt conveyor. The height of the guide plate 4 is lower than the edge height of the belt conveyor, and the upper edge of the guide plate 4 is located within the projection plane of the belt width direction of the belt conveyor. Furthermore, the material collection and return device of this invention can be symmetrically arranged along the center line of the belt conveyor for the easily spilled material positions on the side of the machine.

[0053] In accordance with the material spillage situation of the head roller and tail roller of the belt conveyor, the first screw conveyor 1 is installed parallel to the side of the head roller and tail roller.

[0054] Combined Figure 1 , Figure 2 , Figure 3 As shown, for material spillage at the machine side, a storage trough 13 is set on the side of the belt conveyor. The lower part of the second screw conveyor 2 extends into the storage trough 13. A cleaning robot 14 sweeps up the material falling on the ground and pushes it into the storage trough 13. The second screw conveyor 2 then transports the material to a higher position, and the third screw conveyor 3 delivers the material to the top of the belt conveyor, completing the material return operation. For material spillage at the machine tail, a U-shaped storage trough 15 can be opened on the ground on the side of the tail roller 12. The cleaning robot 14 sweeps up the material falling on the side of the tail roller 12 and pushes it into the storage trough 15. The lower part of the second screw conveyor 2 extends into the storage trough 15 and transports the material to a higher position, where it falls into the first screw conveyor 1 of the machine side assembly.

[0055] The first screw conveyor 1, the second screw conveyor 2, the third screw conveyor 3, the guide plate 4, and the baffle plate 5 are installed in multiple sets at locations on the side of the machine where material is easily spilled. They can also be arranged symmetrically along the centerline of the belt conveyor (e.g., Figure 2 (As shown).

[0056] Combined Figure 1 , Figure 2 , Figure 4As shown, in the case of material spillage from the tail roller 12, the first screw conveyor 1 is located on the side of the tail roller 12 and its length is greater than that of the roller 12. The first screw conveyor 110 adopts a U-shaped trough.

[0057] The guide plate 4 is longer than the tail roller 12, and is installed at an angle with its upper edge slightly lower than the horizontal plane where the rotation axis of the tail roller 12 is located, on the side of the rotating surface. The lower edge of the guide plate 4 is connected to the side edge of the first screw conveyor 1 near the tail roller 12. The baffle plate 5 is installed at an angle, with its lower edge connected to the side edge of the first screw conveyor 1 away from the tail roller 12. The cross-sections of the guide plate 4 and the baffle plate 5 form an inverted trapezoidal structure that is larger at the top and smaller at the bottom. The material spilled from the tail roller 12 falls into the first screw conveyor 1 due to gravity, guided and constrained by the guide plate 4. The discharge port 11 of the first screw conveyor 1 is located above the second screw conveyor 2.

[0058] The second screw conveyor 2 is installed at an angle on the side of the intermediate frame 9 of the belt conveyor, conveying from low to high. The discharge port 21 of the second screw conveyor 2 of the tail roller group can be located above the first screw conveyor 1 on the side of the adjacent group, and the third screw conveyor 3 of the tail roller group is omitted.

[0059] The present invention also provides a belt conveyor, including the material collection and return device for the belt conveyor spillage of the present invention.

[0060] Those skilled in the art should recognize that the above embodiments are merely illustrative of the present invention and are not intended to limit the present invention. Any variations or modifications to the above embodiments that are within the spirit and essence of the present invention will fall within the scope of the claims of the present invention.

Claims

1. A device for collecting and returning material spread by a belt conveyor over its entire length, characterized in that The application relates to a collecting and returning device for full-stroke scattering of a belt conveyor, which comprises the following components: a first screw conveyor, which is arranged in parallel with a scattering component of the belt conveyor and is used for receiving the material scattered by the scattering component; a second screw conveyor, which is arranged on the side of the belt conveyor and is used for conveying the material from low to high, wherein the discharge port of the first screw conveyor is arranged above the low part of the second screw conveyor and is used for lifting the scattered material; a third screw conveyor, which is arranged horizontally on the width direction of the belt conveyor, wherein the high discharge port of the second screw conveyor is arranged above the third screw conveyor, the discharge port of the third screw conveyor is arranged above the belt conveyor, and the conveying direction of the third screw conveyor is from the side of the belt conveyor to the center of the belt conveyor, so as to realize the return conveying of the scattered material; a guide plate, which is arranged obliquely on the first screw conveyor and below the scattering component, and is used for guiding the material of the scattering component to the first screw conveyor; the guide plate is composed of a plurality of metal plates which are connected through a detachable structure, and the surface of the metal plate is provided with a groove; the first screw conveyor is used for conveying the scattered material to the second screw conveyor, the second screw conveyor is used for conveying the material to the third screw conveyor in an inclined mode, and the third screw conveyor is used for conveying the material to the upper part of the belt conveyor, so as to realize the collection and return of the scattered material of the belt conveyor; the lower edge of the guide plate is connected with one side edge of the first screw conveyor, and the height of the upper edge of the guide plate is lower than the height of the scattering point of the scattering component; an inclined baffle is arranged on the other side edge of the first screw conveyor, and the baffle is used for preventing the sliding material from being impacted out of the first screw conveyor due to inertia; the scattering component comprises a machine side of the belt conveyor, a material head roller and a material tail roller; the first screw conveyor is arranged in parallel with the intermediate frame of the belt conveyor on the outside of the machine side, the height of the guide plate is lower than the height of the side edge of the belt conveyor, and the upper edge of the guide plate is arranged in the projection plane of the belt width direction of the belt conveyor; the first screw conveyor is arranged in parallel with the side of the material head roller and the material tail roller; the length of the first screw conveyor is greater than the length of the scattering component; the collecting and returning device further comprises a storage tank, which is arranged on the ground where the belt conveyor is installed, the low part of the second screw conveyor is arranged in the storage tank, and the storage tank is used for conveying the material in the storage tank to the high part; and a cleaning robot is arranged, which is used for cleaning the falling material on the ground and pushing the falling material into the storage tank.

2. The collecting and returning device for full-stroke scattering of the belt conveyor according to claim 1, wherein the conveying surface of the first screw conveyor is in a U-shaped structure.

3. The collecting and returning device for full-stroke scattering of the belt conveyor according to claim 1, wherein the cross section of the guide plate and the baffle is in an inverted trapezoidal structure. The application further discloses a set of or a plurality of the collecting and returning devices for full-stroke scattering of the belt conveyor. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 4. A belt conveyor, characterized by: ​ 5. The belt conveyor of claim 4, wherein: When multiple sets of the collecting and material returning device are arranged, the discharge port of the second screw conveyor is located above the first screw conveyor of the adjacent set to omit the third screw conveyor of the present set.

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