Automatic metal plow type discharging device

Abstract

The utility model discloses an automatic metal plow type discharging device which comprises a first conveying belt installed on a conveying frame, a metal detector is arranged on the upper side of the first conveying belt, a discharging head is further arranged on the first conveying belt, the discharging head is in a V shape, the two tail ends of the discharging head incline backwards and extend out of the edge of the first conveying belt, and the discharging head is connected with a discharging driving device. Protection devices are arranged on the edges, located on the two sides of the discharging head, of the first conveying belt correspondingly, and a second conveying belt used for conveying mineral aggregates discharged by the discharging head is arranged on the lower side of the first conveying belt; the discharging device further comprises a control device which receives and processes signals sent by the metal detector and then sends instructions to control the discharging driving device to drive the discharging head to ascend and descend for discharging. According to the utility model, metal objects in ore conveyed to crushing equipment can be quickly and conveniently removed, the speed of removing and separating the metal objects in the ore is improved, the damage to the conveying belt is reduced, the rear-section crushing equipment is protected, and the metal objects are prevented from seriously damaging the crushing equipment.

Description

Technical Field

[0001] The utility model relates to mineral material conveying and crushing equipment, in particular to a metal automatic plough type unloading device. Background Art

[0002] At present, since most of the mined ores are large in size, belt conveyors are often used to transport the mined ores to crushing equipment for use after crushing. However, mining equipment such as tunneling machines and coal mining machines may break teeth or other parts due to insufficient strength of working parts or excessive load of parts during mining operations. These fallen metal parts will be mixed into the mined ore and transported to the crushing equipment, causing damage to the crushing equipment. In order to avoid damage to the crushing equipment caused by falling metal parts, magnetic suction equipment is currently installed at the conveyor to suck out and remove metal parts in the transported ore. However, the metal parts that fall off from the mining equipment include weakly magnetic or non-magnetic broken parts such as manganese steel teeth and broken stainless steel parts. These metal parts cannot be effectively removed by the magnetic suction equipment and will still enter the crushing equipment with the ore to damage the crushing equipment. In view of the above phenomenon, the existing method is to use a metal detector to scan and detect the ore on the conveyor. If a metal object is found, the conveyor will be stopped and it will be found and removed manually. The stop of the conveyor not only affects the normal operation of subsequent equipment, but also has low efficiency in manual cleaning. There is also a method of guiding the metal-containing ore detected by the metal detector from one side of the conveyor belt of the conveyor through a guide plate and then picking it out. Although this does not affect the normal operation of ore transportation and subsequent equipment, the mined ore is large in volume, and when it is guided from one side of the conveyor belt by the above-mentioned guide plate, the ore will be congested and decelerated at the guide plate, and friction will occur between the conveyor belt and the conveyor belt, causing damage to the conveyor belt. When the ore is guided from one side of the conveyor belt, it will also cause great damage to the edge of the conveyor belt, making the conveyor belt easy to break. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a metal automatic plough type unloading device which can quickly and conveniently remove metal objects in ore conveyed to a crushing device, protect subsequent equipment from damage and reduce damage to a conveyor belt.

[0004] In order to solve the above technical problems, the technical solution of the utility model is: a metal automatic plow-type unloading device, comprising a first conveyor belt installed on a conveyor frame for conveying mineral materials, a metal detector for detecting metals in the mineral materials is arranged on the upper side of the first conveyor belt, a unloading head is also arranged on the first conveyor belt, the metal detector and the unloading head are arranged in sequence along the conveying direction of the first conveyor belt at intervals, the unloading head is V-shaped and the two tail ends are tilted backward and extend out of the edge of the first conveyor belt, the unloading head is connected to a unloading drive device for driving the unloading head to rise and fall, the edges of the first conveyor belt on both sides of the unloading head are respectively provided with protective devices, and a second conveyor belt for conveying the mineral materials unloaded by the unloading head is arranged on the lower side of the first conveyor belt; the unloading device also includes a control device that receives and processes the signal sent by the metal detector and then issues an instruction to control the unloading drive device to drive the unloading head to rise and fall for unloading.

[0005] As an optimal technical solution, material guide troughs are respectively arranged on both sides of the first conveyor belt at the discharge head, the discharge ports at the lower ends of the two material guide troughs are located on the upper side of the second conveyor belt, and the discharge ports of the two material guide troughs are respectively inclined toward the conveying direction of the second conveyor belt.

[0006] As a preferred technical solution, the protective device is a U-shaped groove opening inwardly arranged on the inner side of the top end of the two material guide trough tubes, and the edges on both sides of the first conveyor belt pass through the U-shaped groove.

[0007] As a preferred technical solution, the protective device is a protective plate respectively arranged on the upper side of the edges of the first conveyor belt on both sides of the discharge head.

[0008] As a preferred technical solution, the head end and the upper parts of both sides of the discharge head are tilted backwards.

[0009] As a preferred technical solution, the unloading drive device includes a unloading rack arranged on the conveying rack, the rear end of the unloading head is rotatably installed on the unloading rack through a rotating shaft, the unloading rack is provided with a power device for driving the unloading head to swing and lift, and the unloading rack is also provided with a lifting limit device for controlling the swinging and lifting position of the unloading head, and the control device is connected to control the power device and the lifting limit device.

[0010] Due to the adoption of the metal automatic plow type unloading device of the above technical solution, the utility model detects the ore transported on the first conveyor belt through the metal detector, and sends a signal if metal objects are detected in the ore. After receiving the signal sent by the metal detector, the control device processes it according to a preset program and sends an instruction. The unloading drive device drives the unloading head to descend when the ore containing the metal object part is transported to the front side of the unloading head according to the received instruction, and unloads the ore containing the metal object part from both sides of the first conveyor belt to the second conveyor belt to remove the metal objects in the transported ore. After that, the unloading head is driven to lift the ore and continue to be transported by the first conveyor belt. During the whole process of removing the metal objects in the ore, the conveyor belt is in operation without stopping, thereby ensuring the normal transportation of the ore. The metal objects in the ore are removed quickly and conveniently, and the damage to the subsequent equipment caused by the falling metal parts is avoided, so that the subsequent equipment is effectively protected. The V-shaped plow-type discharge head is used to divert and discharge the transported ore from both sides of the first conveyor belt, which increases the ore discharge channel, improves the ore discharge speed, and reduces the damage to the conveyor belt caused by friction between the ore and the conveyor belt due to ore congestion at the discharge point; the protective device prevents the ore from damaging the edge of the conveyor belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The following drawings are only intended to illustrate and explain the present invention, and do not limit the scope of the present invention.

[0012] Figure 1 It is a top view schematic diagram of the utility model;

[0013] Figure 2 It is a side view schematic diagram of the utility model;

[0014] Figure 3 This is a schematic diagram of the cooperation between the first conveyor belt and the discharge head of the utility model;

[0015] Figure 4 It is a schematic diagram of the metal object removing function of the utility model.

[0016] In the figure: 1- conveyor frame; 2- first conveyor belt; 3- metal detector; 4- discharge head; 5- second conveyor belt; 6- guide chute; 7- protection device; 8- discharge frame; 9- rotating shaft; 10- power device; 11- roller; 12- ore. DETAILED DESCRIPTION

[0017] In order to have a clearer understanding of the technical features, purposes and effects of the utility model, the specific implementation methods of the utility model are now described with reference to the accompanying drawings.

[0018] like Figure 1-3As shown, the metal automatic plow type unloading device comprises a first conveyor belt 2 installed on a conveyor frame 1 for conveying ore materials, a metal detector 3 for detecting metal objects in the ore materials is arranged on the upper side of the first conveyor belt 2, and a unloading head 4 is also arranged on the first conveyor belt 2, the metal detector 3 and the unloading head 4 are arranged in sequence along the conveying direction of the first conveyor belt 2, the unloading head 4 is V-shaped and the two tail ends are tilted backward and extend out of the edge of the first conveyor belt 2, the unloading head 4 is connected to a unloading driving device for driving the unloading head 4 to rise and fall, wherein the interval between the metal detector 3 and the unloading head 4 can be adjusted according to the ore conveying situation. The first conveyor belt 2 is provided with protective devices 7 at the sides on both sides of the discharge head 4, and the lower side of the first conveyor belt 2 is provided with a second conveyor belt 5 for conveying the mineral materials unloaded by the discharge head 4; usually the first conveyor belt 2 and the second conveyor belt 5 are arranged vertically, and the unloading device also includes a control device which receives and processes the signal sent by the metal detector 3 and then sends an instruction to control the unloading drive device to drive the unloading head 4 to rise and fall for unloading, so that the metal detector 3 and the unloading drive device are connected to the control device. The head end and the upper parts of both sides of the discharge head 4 can be tilted backwards, and the bottom of the discharge head 4 extends toward the incoming direction of the ore 12. With the inclined guide surfaces on both sides of the V-shaped discharge head 4, the ore 12 running to the discharge head 4 can have a tendency to run obliquely to both sides under the guidance of the discharge head 4, which not only reduces the collision and obstruction of the ore 12 transported on the first conveyor belt 2, but also facilitates the guidance of the traveling ore 12, so that the ore 12 transported on the first conveyor belt 2 can be smoothly discharged from both sides of the first conveyor belt 2, so that the ore containing metal objects can be quickly discharged and sent away, the metal objects in the ore can be quickly removed, and the damage to the subsequent equipment caused by the falling metal parts can be avoided, so that the subsequent equipment is effectively protected. At the same time, it also reduces the damage to the first conveyor belt 2 caused by the collision and deceleration of the ore 12 and the discharge head 4. The first conveyor belt 2 and the second conveyor belt 5 can be conveyor belts arranged on two belt conveyors respectively, the metal detector 3 is also an existing product, and the control device can be a PLC controller. When working, the metal detector 3 detects the ore 12 transported on the first conveyor belt 2 in real time. When metal objects are detected in the ore 12, the metal detector 3 immediately sends a signal, and the PLC controller receives and processes the signal sent by the metal detector 3, and then sends a command to the unloading drive device to control the unloading drive device to drive the unloading head 4 to rise and fall for unloading. The time when the unloading drive device drives the unloading head 4 to rise after being lowered for unloading can be automatically controlled according to the pre-set program in the PLC controller. The control working principle of the above-mentioned PLC controller is common knowledge and will not be described in detail here.

[0019] like Figure 1 and Figure 2As shown, the first conveyor belt 2 is provided with guide troughs 6 on both sides of the discharge head 4, the discharge ports at the lower ends of the two guide troughs 6 are located on the upper side of the second conveyor belt 5, and the discharge ports of the two guide troughs 6 are respectively inclined toward the conveying direction of the second conveyor belt 5. The guide troughs 6 facilitate the smooth conveying of the ore 12 to the second conveyor belt 5 after unloading, and the discharge ports of the guide troughs 6 are inclined toward the conveying direction of the second conveyor belt 5, so that the ore 12 is conveyed from the guide troughs 6 to the second conveyor belt 5 in the same direction and speed as the second conveyor belt 5, thereby reducing damage to the second conveyor belt 5.

[0020] like Figure 1 and Figure 3 As shown, the protective device 7 is a U-shaped groove with an inward opening provided on the inner side of the top of the two guide troughs 6, and the edges of the first conveyor belt 2 on both sides pass through the U-shaped groove; the protective device 7 is a guard plate provided on the upper side of the edges of the first conveyor belt 2 on both sides at the discharge head 4, and the guard plate can be provided on the inner side of the guide trough 6 or on the frame. In this way, when the ore 12 is guided by the discharge head 4 to be discharged to both sides, the U-shaped groove or the guard plate separates the ore 12 from the edge of the first conveyor belt, thereby avoiding the damage caused by the wear and impact of the ore 12 on the edge of the first conveyor belt 2.

[0021] like Figure 1 and Figure 3 As shown, the unloading driving device includes a unloading frame 8 arranged on the conveying frame 1, and the rear end of the unloading head 4 is rotatably installed on the unloading frame 8 through a rotating shaft 9. The unloading frame 8 is provided with a power device 10 for driving the unloading head 4 to swing and lift, and the unloading frame 8 is also provided with a lifting limit device for controlling the swinging and lifting position of the unloading head 4. The control device is connected to control the power device 10 and the lifting limit device. The power device 10 can adopt an electric push rod, a cylinder, etc. The lifting limit device can adopt an angle sensor arranged on the rotating shaft 9 or a travel switch for controlling the swinging position of the rear end of the unloading head 4 arranged on the unloading frame 8, etc. The lifting position of the unloading head 4 is accurately controlled by the lifting limit device to avoid collision and damage to the first conveyor belt 2 and other components due to excessive lifting. In order to protect the first conveyor belt 2 and ensure normal unloading, a number of rollers 11 are arranged on the lower side of the first conveyor belt 2 at the unloading location to support the first conveyor belt 2 at the unloading location; similarly, a number of rollers 11 are also arranged on the lower side of the second conveyor belt 5 at the discharge port of the guide chute 6 to support the second conveyor belt 5 at the discharge location.

[0022] like Figure 4As shown, when the utility model is used, the belt conveyor drives the first conveyor belt 2 to transport the mined ore 12 to the crushing equipment for crushing, and the metal detector 3 detects the ore 12 transported on the first conveyor belt 2. When there is no metal in the ore 12, the first conveyor belt transports the ore 12 normally. When the metal detector 3 detects metal objects in the ore 12, the metal detector 3 sends a signal to the control device. After receiving the signal from the metal detector 3, the control device calculates according to the running speed of the first conveyor belt 2 preset by the control device, the distance between the metal detector 3 and the discharge head 4, etc., and then sends a command to the power device 10. According to the received command, the power device 10 drives the discharge head 4 to descend when the ore 12 containing the metal objects runs to a distance in front of the discharge head 4, and discharges the ore 12 containing the metal objects from both sides of the first conveyor belt 2 to the second conveyor belt 5 to remove the metal objects in the conveyed ore 12. Then, the discharge head 4 is driven to lift the ore 12 and continue to be transported by the first conveyor belt 2. During the entire process of removing the metal objects in the ore 12, the conveyor belt is in operation without stopping, thereby ensuring the normal transportation of the ore, and the metal objects in the ore are quickly removed, avoiding the damage to the subsequent equipment caused by the falling metal parts, so that the subsequent equipment is effectively protected. When the power device 10 drives the discharge head 4 to descend, the distance between the metal ore 12 and the discharge head 4 and the time for driving the discharge head 4 to rise are determined according to actual operating conditions such as the running speed of the first conveyor belt 2 .

[0023] In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] The above description is only an illustrative embodiment of the present invention and is not intended to limit the scope of the present invention. Any equivalent changes and modifications made by any person skilled in the art without departing from the concept and principle of the present invention shall fall within the scope of protection of the present invention.

Claims

1. A metal automatic plow-type unloading device, comprising a first conveyor belt mounted on a conveyor frame for conveying mineral materials, characterized in that: A metal detector for detecting metal in the ore is arranged on the upper side of the first conveyor belt, and a discharge head is also arranged on the first conveyor belt. The metal detector and the discharge head are arranged in sequence at intervals along the conveying direction of the first conveyor belt. The discharge head is V-shaped and the two tail ends are tilted backward and extend out of the edge of the first conveyor belt. The discharge head is connected to a discharge drive device for driving the discharge head to rise and fall. The edges of the first conveyor belt on both sides of the discharge head are respectively provided with protective devices. A second conveyor belt for transporting the ore unloaded by the discharge head is arranged on the lower side of the first conveyor belt; the discharge device also includes a control device that receives and processes the signal sent by the metal detector and then issues an instruction to control the discharge drive device to drive the discharge head to rise and fall for unloading.

2. The metal automatic plow type unloading device according to claim 1, characterized in that: The first conveyor belt is provided with material guide troughs on both sides of the discharge head, the discharge ports at the lower ends of the two material guide troughs are located on the upper side of the second conveyor belt, and the discharge ports of the two material guide troughs are inclined toward the conveying direction of the second conveyor belt.

3. The metal automatic plow type unloading device according to claim 2, characterized in that: The protective device is a U-shaped groove with inward openings respectively arranged on the inner sides of the top ends of the two material guide groove cylinders, and the edges on both sides of the first conveyor belt pass through the U-shaped groove.

4. The metal automatic plow type unloading device according to claim 1, characterized in that: The protective device is a protective plate respectively arranged on the upper side of the edges of the first conveyor belt on both sides of the discharge head.

5. The metal automatic plow type unloading device according to claim 1, characterized in that: The head end and upper parts of both sides of the discharge head are arranged to be tilted backwards.

6. The automatic plow-type metal unloading device according to any one of claims 1 to 5, characterized in that: The unloading drive device includes a unloading frame arranged on the conveying frame, the rear end of the unloading head is rotatably installed on the unloading frame through a rotating shaft, the unloading frame is provided with a power device for driving the unloading head to swing and lift, the unloading frame is also provided with a lifting and lowering limit device for controlling the swinging and lifting position of the unloading head, and the control device is connected to control the power device and the lifting and lowering limit device.

Images