Scraper conveyor with vibration device

Abstract

To provide a conveyor chain with a vibrator capable of reducing wear of the conveyor chain without causing fixation and bending failure of the conveyor chain by shaking off ashes, etc. entering a clearance of the conveyor chain.SOLUTION: A scraper conveyor comprises: a casing 1 having a bottom plate; a drive shaft 2 provided in the casing 1; a follower shaft 3 receiving rotation of the drive shaft 2 and following it to rotate; right and left conveyor chains 9 for transmitting the rotation continuing from the drive shaft 2 to the follower shaft 3; right and left guide rails 7 for guiding the right and left conveyor chains 9; and a scraper 11 attached to the right and left conveyor chains 9 for conveying a conveying object along the bottom plate. The scraper conveyor is a scraper conveyor with a vibrator provided with a vibrator which is attached to the right and left guide rails 7 for vibrating the right and left conveyor chains 9 via the guide rails 7.SELECTED DRAWING: Figure 1

Description

Technical Field

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[0001] The present invention relates to a scraper conveyor to which a vibration device is attached.

[0002] As a means for transporting incineration ash or the like, a scraper conveyor is effective. This scraper conveyor moves incineration ash containing moisture by sweeping it with a scraper attached to a conveyor chain. However, incineration ash or the like may enter between the pins and rollers constituting the conveyor chain, causing the rollers to not rotate smoothly.

[0003] When the roller does not rotate, the rolling resistance becomes sliding resistance between the roller and the guide rail, increasing the energy required for operation and potentially increasing electricity consumption.

[0004] In addition, non-rotating rollers slide on the guide rail, causing wear of the rollers and the guide rail, and problems such as shortening the life of the conveyor chain and the rail.

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[0009] In other words, for a conveyor chain to be functioning correctly, it is necessary that there is no ash or other debris clogging the pins and rollers that make up the conveyor chain, and that the rollers rotate smoothly.

[0010] Moisture-containing ash can get trapped between the ring plates that make up the conveyor chain. When the moisture evaporates, the ash can harden, and instead of the chain sliding smoothly as it should, the ring plates become difficult to bend, sometimes resulting in a bending defect where they harden in a bent position.

[0011] Furthermore, when the ring plate is bent and fixed in this manner, the total length of the left and right conveyor chains changes, resulting in the left and right conveyor chains having different lengths.

[0012] As a result, it is impossible to accurately measure the tension of the conveyor chain, and because the lengths of the left and right conveyor chains are different, it is not possible to adjust the tension on the chain through the take-up operation.

[0013] Furthermore, a poorly bent conveyor chain could come into contact with the guide rail, causing the chain to break, which sometimes forced the conveyor to shut down.

[0014] Possible measures to prevent conveyor chains from sticking include, for example, lubricating the conveyor chains, adjusting the dimensions and material of the conveyor chains, or using stainless steel for part of the conveyor chain material.

[0015] However, when lubricating conveyor chains, frequent lubrication sometimes increased the accumulation of ash.

[0016] Furthermore, even if measures are taken to create a gap between the pin and bushing, or between the roller and the ring plate, it is not possible to prevent ash from sticking.

[0017] Furthermore, while using stainless steel for part of the conveyor chain material is effective in protecting the pin-bush rollers from rust, the problem of the conveyor chain sticking remains.

[0018] Furthermore, while it is effective to allow for some slack in the dimensions of the conveyor chain and to use stainless steel for a portion of the conveyor chain, it does not fundamentally prevent bending defects.

[0019] Therefore, currently, the problem of poor bending is resolved by using a hammer to strike the non-rotating parts of the chain and rollers a few times a month to release the seizure.

[0020] While this process is effective in resolving the sticking caused by poor bending, it was dangerous because it had to be done while the conveyor was running.

[0021] Even when the conveyor chain was in normal condition, measuring the chain tension was difficult, and if the chain was bending improperly, it was even more impossible to measure the tension accurately.

[0022] Therefore, preventing bending defects from occurring is extremely effective. Accordingly, the present invention aims to provide a scraper conveyor that removes ash that has entered between pins and rollers by applying vibration to the conveyor chain, and also removes ash that has entered between pins and rollers by injecting air into the conveyor chain from an air nozzle, thereby preventing the conveyor chain from sticking or bending defects from occurring. [Prior art documents] [Patent Documents]

[0023] [Patent Document 1] JP 2021-141052 Chain cleaning mechanism This document discloses a mechanism for cleaning a chain with a rotating brush. However, with cleaning by a rotating brush, it was difficult to remove dust and the like that had entered the small gaps between the pins and rollers of the chain.

Summary of the Invention

Problems to be Solved by the Invention

[0024] By measuring the chain tension, it is possible to observe the amount of conveyed material, the conveying state, the driving state of the conveyor, etc. in the case of conveying by a conveyor, and to grasp the operation of the conveyor. This enables visualization of the operation within the conveyor, prediction of chain wear, rail deformation, etc., and also planning for component replacement times.

[0025] Therefore, in order for the conveyor chain to be driven smoothly, dust and the like that have entered the gaps between the pins and rollers constituting the conveyor chain can be removed by vibration.

[0026] Also, dust and the like that have entered the small gaps between the pins and rollers constituting the conveyor chain can be removed by injecting air from an air nozzle.

[0027] Also, by grasping the change in the tension applied to the left and right conveyor chains, the sag of the conveyor chain can be grasped, and in order to make the tension of the conveyor chain appropriate, it is made possible to easily adjust the appropriate tension to the chain during the take-up operation of the driven shaft.

[0028] Furthermore, the wear of the conveyor chain is reduced, the life of the conveyor chain is extended, energy conservation is achieved, the wear of guide rails, sprockets, etc. is also reduced, the running cost is lowered, and it is made possible to contribute to decarbonization.

Means for Solving the Problems

[0029] As the first invention, a scraper conveyor comprising a casing having a bottom plate, a drive shaft provided inside the casing, a driven shaft that rotates in response to the rotation of the drive shaft, left and right conveyor chains connected from the drive shaft to the driven shaft that transmit rotation, left and right guide rails that guide the left and right conveyor chains, and scrapers attached to the left and right conveyor chains that transport conveyed material along the bottom plate, is provided as a scraper conveyor with a vibration device attached to the left and right guide rails that vibrates the left and right conveyor chains via the guide rails.

[0030] As a second invention, a scraper conveyor comprising a casing having a bottom plate, a drive shaft provided inside the casing, a driven shaft that rotates in response to the rotation of the drive shaft, left and right conveyor chains connected from the drive shaft to the driven shaft that transmit rotation, left and right guide rails that guide the left and right conveyor chains, and scrapers attached to the left and right conveyor chains that transport conveyed material along the bottom plate, wherein a vibration device is provided attached to the left and right guide rails to vibrate the left and right conveyor chains via the guide rails, and air nozzles are provided to inject air onto the left and right conveyor chains, thereby creating a scraper conveyor with a vibration device.

[0031] As a third invention, a scraper conveyor comprising a casing having a bottom plate, a drive shaft provided inside the casing, a driven shaft that rotates in response to the rotation of the drive shaft, left and right conveyor chains connected from the drive shaft to the driven shaft that transmit rotation, left and right guide rails that guide the left and right conveyor chains, and scrapers attached to the left and right conveyor chains that transport conveyed material along the bottom plate, wherein left and right sprockets are provided between the drive shaft and the driven shaft, the left and right conveyor chains pass over the left and right sprockets, and a vibration device is provided attached to the left and right sprockets that vibrates the left and right conveyor chains via the left and right sprockets, thus creating a scraper conveyor with a vibration device.

[0032] As the fourth invention, a scraper conveyor comprising a casing having a bottom plate, a drive shaft provided inside the casing, a driven shaft that rotates in response to the rotation of the drive shaft, left and right conveyor chains connected from the drive shaft to the driven shaft that transmit rotation, left and right guide rails that guide the left and right conveyor chains, and scrapers attached to the left and right conveyor chains that transport conveyed material along the bottom plate, wherein left and right sprockets are provided between the drive shaft and the driven shaft, the left and right conveyor chains pass over the left and right sprockets, a vibration device is provided attached to the sprockets that vibrates the left and right conveyor chains via the left and right sprockets, and an air nozzle is provided that sprays air onto the left and right conveyor chains, thus creating a scraper conveyor with a vibration device.

[0033] As the fifth invention, the scraper conveyor is equipped with a vibration device that vibrates the left and right conveyor chains respectively, thereby preventing ash from adhering to the left and right conveyor chains.

[0034] As the sixth invention, the air nozzle is a scraper conveyor with a vibration device that prevents ash from sticking to the conveyor chains by spraying air onto the left and right conveyor chains.

[0035] As the seventh invention, the vibration device is a scraper conveyor with a vibration device that can adjust the amplitude of the vibration, the number of vibrations, and the duration of the vibration.

[0036] As the eighth invention, the air nozzle is a scraper conveyor with a vibrating device that can adjust the amount of air injected into the left and right conveyor chains, the injection interval, and the injection time. [Effects of the Invention]

[0037] With this invention, even if ash or other debris gets into the gaps of the conveyor chain, the vibration device can be used to vibrate the conveyor chain, thereby shaking off the ash or debris.

[0038] Additionally, by spraying air from an air nozzle onto the conveyor chain, ash and other debris can be blown off.

[0039] Therefore, because the conveyor chain can be driven smoothly, the presence and quantity of conveyed objects can be estimated based on the measured tension data of the conveyor chain, thereby enabling "visualization of operation."

[0040] Furthermore, based on tension measurement data, the movement of the scraper conveyor can be automatically controlled to intermittent operation or reduced speed operation, thereby saving energy.

[0041] Furthermore, wear on the conveyor chain, guide rails, and sprockets can be reduced. By reducing sprocket wear, the frequency of parts replacement decreases, and the longer lifespan of the parts reduces the number of parts that need to be manufactured, thus contributing to decarbonization.

[0042] Furthermore, because the present invention enables smooth driving of the conveyor chain, by measuring and recording the tension on the chain of the scraper conveyor, and analyzing the tension data based on the numerical value of the tension, it is possible to understand the jamming between the scraper and the bottom plate of the scraper conveyor, thereby providing operational support to ensure normal operation and contributing to work style reform.

[0043] Furthermore, this invention enables smooth driving of the conveyor chain, allowing for measurement and recording of the tension on the chain of the scraper conveyor. Based on the tension values, the tension data can be analyzed to determine when the chain needs replacing and to understand the chain's condition. Additionally, based on the tension measurement, the chain's elongation can be calculated, allowing for adjustments to take up the conveyor chain. [Brief explanation of the drawing]

[0044] [Figure 1] Side view diagram of the scraper conveyor of the present invention [Figure 2] Side view of the guide rail of the present invention with a vibration device attached. [Figure 3] Front view enlarged explanatory diagram of the guide rail of the present invention with a vibration device attached. [Figure 4] Front view enlarged explanatory diagram when a vibration device is attached to the top of the guide rail of the present invention [Figure 5] Side view diagram of the scraper conveyor of the present invention [Figure 6] Side view of the sprocket of the present invention with a vibration device attached. [Figure 7] Front view enlarged explanatory diagram of the sprocket of the present invention with a vibration device attached. [Figure 8] Front view enlarged explanatory diagram of the sprocket of the present invention with a vibration device attached to the top. [Figure 9] Diagram illustrating the configuration of the roller section of a conveyor chain. [Figure 10] Diagram illustrating the condition where ash and other debris clog the rollers of a conveyor chain. [Figure 11] Diagram illustrating the condition where ash and other debris clog the rollers of a conveyor chain. [Figure 12] This diagram illustrates the wear condition of rollers when ash or other debris clogs the rollers of a conveyor chain, preventing them from rotating. [Figure 13] Diagram illustrating the condition where ash and other debris clog the rollers of a conveyor chain. [Figure 14] Side view illustrating the condition of a conveyor chain with bending defects. [Figure 15] Side view illustrating a conveyor chain with a bending defect in contact with the guide rail. [Best Mode for Carrying Out the Invention]

[0045] Figure 1 is a side view illustrating the scraper conveyor of the present invention. In addition to scraper conveyors, the present invention can also be used for conveyors driven by two conveyor chains on the left and right, such as flight conveyors, apron conveyors, bucket elevators, and slat conveyors. Furthermore, although the scraper conveyor shown in Figure 1 is an upper return type, the invention can also be used for other types of scraper conveyors.

[0046] In Figure 1, 1 is the casing, which is the conveying path for the conveyed material. 2 is the drive shaft, which is located inside the casing 1. 3 is the driven shaft, which rotates via the conveyor chain in accordance with the drive from the drive shaft 1. This driven shaft 3 rotates in response to the drive from the drive shaft 2. 4 is the head sprocket, which transmits the rotation of the drive shaft 2. 5 is the motor, which drives the head sprocket 4. 6 is the tail sprocket, which corresponds to the head sprocket 4 and transmits the drive from the drive shaft 2 to the driven shaft 3.

[0047] 7 is the guide rail, and 8 indicates the trajectory of the conveyor chain. The conveyor chain can be moved along guide rail 7.

[0048] 9 is a conveyor chain, and 10 is a roller. Multiple conveyor chains 9 and rollers 10 are connected to form a chain. Figure 1 shows only a portion of the conveyor chain and rollers.

[0049] Element 11 is a scraper, attached to the conveyor chain 9, and used to transport materials. Multiple scrapers 11 are provided at regular intervals. The conveyor chain 9 transmits the rotation of the drive shaft 2, which moves the scraper 11, to the driven shaft 3.

[0050] 12 is the inlet for incinerated ash. 13 shows the incinerated ash that has been fed in through the inlet 12. The incinerated ash 13 is transported by the scraper 11 to the discharge port 14. The incinerated ash includes ash that contains moisture.

[0051] Reference numeral 15 denotes a guide rail to which a vibration device is attached. Since this guide rail 15 needs to accurately transmit the vibrations of the vibration device to the conveyor chain, it is also effective to separate it from the whole structure that supports the upper return side conveyor chain and make it large enough to support only a portion of the conveyor chain.

[0052] The scraper conveyor shown in Figure 1 is a type of conveyor known as an upper return type. As shown in the diagram, the scraper 11 moves along the top in the direction of arrow A, and as it passes along the bottom, the scraper 11 transports the incinerated ash that has been fed in from the incinerated ash input port 12 to the discharge port 14.

[0053] In the case of an upper-return type scraper conveyor, the scraper 11 moving along the upper part in the direction of arrow A does not carry the conveyed material, while the scraper 11 moving along the lower part in the direction of arrow B carries the conveyed material.

[0054] Figure 2 is an enlarged side view illustrating the guide rail of the present invention with a vibration device attached. Figure 3 is an enlarged front view illustrating the guide rail of the present invention with a vibration device attached.

[0055] In Figures 2 and 3, 15 is a guide rail to which the vibration device is attached. 16 is a frame, which serves as the base to which the guide rail 15 is attached. 17 is a vibration-absorbing member such as rubber, which prevents vibrations from the vibration device 18 from being transmitted to the frame 1 of the main body. The vibration device 18 is attached to the guide rail 15, and is configured to transmit vibrations from the vibration device 18 to the guide rail 15.

[0056] The vibrations are transmitted to the conveyor chain 9 and rollers 10 that are in contact with the guide rail 15. The size of the guide rail 15 should be appropriately such that it is about the length of two to three individual conveyor chains in order to transmit the vibrations of the vibration device.

[0057] Figure 4 is a front view enlarged explanatory diagram showing the case where a vibration device is attached to the top of the guide rail of the present invention.

[0058] In Figure 4, the frame 16 is positioned so that the vibrating device 18 is placed on top of the scraper 11. By positioning the vibrating device 18 on top, it is possible to prevent incinerated ash and other materials adhering to the scraper from falling onto the vibrating device 18.

[0059] 19 is the air piping, and 20 is the air nozzle.

[0060] By spraying air from the air nozzle 20 onto the conveyor chain 9, ash and other debris that have entered the gaps can be blown away. In particular, spraying air linearly and precisely on both sides of the conveyor chain is more effective.

[0061] Air can be injected continuously or intermittently using a mechanical valve. Intermittent injection helps to reduce waste.

[0062] Furthermore, the amount of air injected, the injection interval, and the injection time will be adjusted as appropriate, taking into account the conveyor's operating status, the amount of incinerated ash, the degree of ash clogging, etc.

[0063] Here, based on Figures 9 to 15, we will explain the situation in which incinerated ash and other materials adhere to the conveyor chain, causing the chain to lose its original degree of freedom.

[0064] Figure 9 is an explanatory diagram showing the configuration of the roller section of a conveyor chain.

[0065] In Figure 9, 9 is a conveyor chain consisting of an inner link 27 and an outer link 28. 10 is a roller. 29 is a pin, which fastens the outer link 28, inner link 27, and roller 10 together with a T-pin 31 on the opposite side. 30 is a bushing.

[0066] Figure 10 shows the state in which ash enters between the roller 10 and the bush 30. When ash enters the area indicated by the shaded lines in Figure 10, the ash and other debris that enter between the roller 10 and the bush 30 hinder the smooth rotation of the roller 10. Figure 11 shows the state in which ash enters between the roller 10 and the inner link 27. When ash enters the area indicated by the shaded lines in Figure 11, the ash and other debris that enter between the roller 10 and the inner link 27 hinder the smooth rotation of the roller 10.

[0067] Figure 12 illustrates the wear condition of the rollers when ash or other debris clogs the roller portion of a conveyor chain, causing the rollers to stop rotating. As shown in Figures 10 and 11, if ash gets into the gaps, the rotation of the roller 10 will deteriorate, and as shown in Figure 12, the roller 10 may wear down. Furthermore, the wear of the roller 10 will also cause wear of the guide rail 15, shortening the lifespan of the conveyor chain 9 and the guide rail 15.

[0068] Furthermore, Figure 13 shows a condition where ash gets trapped between the inner link 27 and the outer link 28. Ash can get trapped in the area indicated by the shaded lines in the figure, and in this case, smooth sliding between the inner link 27 and the outer link 28 becomes impossible. In this case, if ash adheres to the area between the inner link 27 and the outer link 28, the bending of the links becomes difficult.

[0069] Figure 14 is a side view illustrating a state of bend defects in a conveyor chain. As shown in Figure 14, the chain could solidify in a state of poor bending. When ash solidifies, moisture-containing ash gets into the space between the inner ring 27 and the outer ring 28, and then, when it dries and the moisture is gone, the sliding motion between the inner ring 27 and the outer ring 28 becomes impaired. As a result, in chains with poor bending, as shown in Figure 15, the chain may come into contact with the guide rail 15, which can cause the guide rail 15 to warp or even the conveyor chain to break.

[0070] The present invention is a scraper conveyor equipped with a vibration device to prevent ash and other debris from adhering to it, which can cause poor roller rotation or improper bending of the conveyor chain.

[0071] Next, we will explain how to attach a vibration device to a sprocket.

[0072] Figure 5 is an overall side view of the scraper conveyor of the present invention, Figure 6 is an enlarged side view of the sprocket of the present invention with a vibration device attached, Figure 7 is an enlarged front view of the sprocket of the present invention with a vibration device attached, and Figure 8 is an enlarged front view of the sprocket of the present invention with a vibration device attached to the top. Based on these figures, the case of attaching a vibration device to a sprocket will be explained.

[0073] 21 is a sprocket. The sprocket 21 shown in Figures 6 to 8 is a thick disc shape, but it is not limited to this shape and can also be gear-shaped to match the spacing of the rollers 10 of the conveyor chain. By making it gear-shaped, the rollers 10 will not shift away from the sprocket 21 and the vibrations of the vibration device 26 will be transmitted more efficiently.

[0074] Figure 6 is an enlarged side view illustrating the sprocket of the present invention with a vibration device attached. Figure 7 is an enlarged front view illustrating the sprocket of the present invention with a vibration device attached.

[0075] In Figures 6 and 7, 22 is the main body. 23 is a vibration-absorbing member such as rubber. 24 is the frame, 25 is the shaft, and 26 is the vibration device. The vibration-absorbing member 23 prevents vibrations from the vibration device 26 from being transmitted to the main body 22. The vibration device 26 is attached to the frame 24 and is capable of transmitting vibrations from the vibration device 26 to the sprocket 21. The left and right sprockets 21 are connected by the shaft 25.

[0076] When the roller 10 comes into contact with the sprocket 21, vibrations from the vibration device 26 are transmitted, causing any ash or other debris that has gotten between the roller 10 and the conveyor chain 9 to be shaken off.

[0077] Figure 8 is a front view enlarged explanatory diagram showing the case where a vibration device 26 is attached to the top of the sprocket 21 of the present invention.

[0078] In Figure 8, the frame 24 is positioned so that the vibrating device 26 is placed on top of the scraper 11. By positioning the vibrating device 26 on top, it is possible to prevent incinerated ash and other materials adhering to the scraper 11 from falling onto the vibrating device 26.

[0079] 19 is the air piping, and 20 is the air nozzle.

[0080] By spraying air from the air nozzle 20 onto the conveyor chain 9, ash and other debris that have entered the gaps can be blown away.

[0081] In particular, spraying air linearly and precisely on both sides of the conveyor chain is more effective.

[0082] Air can be injected continuously or intermittently using a mechanical valve. Intermittent injection helps to reduce waste.

[0083] Air can be injected continuously or intermittently using a mechanical valve. Intermittent injection helps to reduce waste.

[0084] Furthermore, the amount of air injected, the injection interval, and the injection time will be adjusted as appropriate, taking into account the conveyor's operating status, the amount of incinerated ash, the degree of ash clogging, etc.

[0085] Furthermore, the vibrations from the vibration device can prevent ash from sticking to the conveyor chains on both sides.

[0086] Furthermore, by spraying air from air nozzles onto the conveyor chains on both sides, it is possible to prevent ash from sticking to the conveyor chains.

[0087] Furthermore, the vibration device will be designed to allow adjustment of the amplitude of the vibration, the number of vibrations, and the duration of the vibration.

[0088] Furthermore, the air nozzle allows for adjustment of the amount of air injected into the left and right conveyor chains, the injection interval, and the injection time. [Industrial applicability]

[0089] This invention provides a conveyor chain with a vibration device that can reduce wear on the conveyor chain without causing bending defects by shaking off ash and other debris that has entered the gaps in the conveyor chain. Furthermore, by measuring the tension on the conveyor chain as it drives smoothly, it is possible to understand the conditions under which it is being operated and transported, thereby contributing to "visualization of operation," "prediction of failures," "operation support," "labor saving," and "decarbonization."

[0090] Furthermore, this invention provides a conveyor chain equipped with a vibration device that can be used in the take-up operation of the conveyor chain, allowing for appropriate adjustment of the tension of the conveyor chain. [Explanation of symbols]

[0091] 1 Casing 2 drive shafts 3 Driven axis 4 Head sprocket 5 motors 6 Tail sprocket 7 Guide rails 8. The path the conveyor chain follows 9 Conveyor Chain 10 rollers 11 Scraper 12. Inlet for incinerated ash 13 Incinerator ash 14 Outlet 15 Guide rails 16 frames 17 Vibration absorbing member 18 Vibration device 19 Air Piping 20 Air Nozzles 21 sprocket 22 Main unit 23 Vibration absorbing member 24 frames 25 axes 26 Vibration device 27 internal links 28 External Links 29 pins 30 bush 31 T-pin

Claims

1. A scraper conveyor comprising a casing having a bottom plate, a drive shaft provided inside the casing, a driven shaft that rotates in response to the rotation of the drive shaft, left and right conveyor chains connected from the drive shaft to the driven shaft that transmit rotation, left and right guide rails that guide the left and right conveyor chains, and scrapers attached to the left and right conveyor chains that transport materials along the bottom plate, A scraper conveyor with a vibration device, characterized by being attached to the left and right guide rails and vibrating the left and right conveyor chains via the guide rails.

2. A scraper conveyor comprising a casing having a bottom plate, a drive shaft provided inside the casing, a driven shaft that rotates in response to the rotation of the drive shaft, left and right conveyor chains connected from the drive shaft to the driven shaft that transmit rotation, left and right guide rails that guide the left and right conveyor chains, and scrapers attached to the left and right conveyor chains that transport materials along the bottom plate, A vibration device is provided which is attached to the left and right guide rails and vibrates the left and right conveyor chains via the guide rails, A scraper conveyor with a vibration device, characterized in that it is equipped with air nozzles that spray air onto the left and right conveyor chains.

3. A scraper conveyor comprising a casing having a bottom plate, a drive shaft provided inside the casing, a driven shaft that rotates in response to the rotation of the drive shaft, left and right conveyor chains connected from the drive shaft to the driven shaft that transmit rotation, left and right guide rails that guide the left and right conveyor chains, and scrapers attached to the left and right conveyor chains that transport materials along the bottom plate, Left and right sprockets are provided between the drive shaft and the driven shaft. The left and right conveyor chains are positioned to pass over the left and right sprockets. A scraper conveyor with a vibration device, characterized in that it is provided with a vibration device attached to the left and right sprockets, which vibrates the left and right conveyor chains via the left and right sprockets.

4. A scraper conveyor comprising a casing having a bottom plate, a drive shaft provided inside the casing, a driven shaft that rotates in response to the rotation of the drive shaft, left and right conveyor chains connected from the drive shaft to the driven shaft that transmit rotation, left and right guide rails that guide the left and right conveyor chains, and scrapers attached to the left and right conveyor chains that transport materials along the bottom plate, Left and right sprockets are provided between the drive shaft and the driven shaft. The left and right conveyor chains are positioned to pass over the left and right sprockets. A vibration device is provided that is attached to the sprocket and vibrates the left and right conveyor chains via the left and right sprockets, A scraper conveyor with a vibration device, characterized in that it is equipped with air nozzles that spray air onto the left and right conveyor chains.

5. The scraper conveyor with a vibrating device according to any one of claims 1 to 4, characterized in that the vibrating device can prevent ash from adhering to the left and right conveyor chains by vibrating the left and right conveyor chains respectively.

6. The scraper conveyor with a vibrating device according to claim 2 or 4, characterized in that the air nozzles can prevent ash from adhering to the conveyor chains by spraying air onto the left and right conveyor chains.

7. The aforementioned vibration device is characterized in that it can adjust the amplitude of the vibration, the number of vibrations, and the duration of the vibration, as described in any one of claims 1 to 4.

8. The scraper conveyor with a vibrating device according to claim 2 or 4, characterized in that the air nozzle can adjust the amount of air injected into the left and right conveyor chains, the injection interval, and the injection time.

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