Dust fall device for belt conveying transfer point and belt conveying equipment

Abstract

The invention provides a dust falling device for a belt conveying transfer point and belt conveying equipment. The dust falling device for the belt conveying transfer point comprises a dust falling cover, a spraying mechanism and an exhaust mechanism, the dust falling cover is used for covering a downstream conveying belt and is provided with a first opening allowing an upstream conveying belt to stretch in, a second opening is formed in the top end of the dust falling cover, and the spraying mechanism and the exhaust mechanism are both located in the second opening. The exhaust mechanism is used for exhausting gas in the dust falling cover from the second opening, and the spraying mechanism is used for spraying mist into the dust falling cover. According to the dust falling device for the belt conveying transfer point, the dust falling cover is used for covering dust generated in the process that materials fall from the upstream conveying belt to the downstream conveying belt, the exhaust mechanism enables gas in the dust falling cover to carry the dust to move towards the second opening, and then the dust is in contact with water mist sprayed by the spraying mechanism to fall dust; and the gas after dust falling is discharged from the second opening, so that air pollution and potential safety hazards caused by dust dissipation are avoided.

Description

Technical Field

[0001] The present invention relates to the field of conveying, and in particular to a dust reduction device for a belt conveying transfer point and belt conveying equipment. Background Art

[0002] The belt conveyor transfer point refers to the position where the unloading end of the upstream conveyor belt is arranged above the receiving end of the downstream conveyor belt along the conveying direction. The material is separated from the unloading end of the upstream conveyor belt and falls to the receiving end of the downstream conveyor belt, so that the material is transferred from the upstream conveyor belt to the downstream conveyor belt and continued to be transported.

[0003] During the transportation of ore, such as coal, dust is generated as the material detaches from the upstream conveyor belt and falls onto the downstream conveyor belt. Conventional technology employs sealed enclosures at the belt conveyor transfer points to confine the dust within the enclosures for settling. However, dust settling within the enclosures is poor and can escape through gaps in the conveyor belts, causing air pollution and potential safety hazards. Summary of the Invention

[0004] The present invention aims to solve one of the technical problems in the related art at least to a certain extent.

[0005] To this end, an embodiment of the present invention provides a dust reduction device for a belt conveyor transfer point and a belt conveyor equipment using the dust reduction device.

[0006] The dust suppression device for a belt conveyor transfer point according to an embodiment of the present invention comprises:

[0007] A dust hood, a spray mechanism and an exhaust mechanism, wherein the dust hood is used to cover the downstream conveyor belt and is provided with a first opening for the upstream conveyor belt to extend into, a second opening is provided at the top of the dust hood, the spray mechanism and the exhaust mechanism are both located at the second opening, the exhaust mechanism is used to discharge the gas in the dust hood from the second opening, and the spray mechanism is used to spray into the dust hood.

[0008] The dust reduction device for a belt conveyor transfer point in an embodiment of the present invention has a dust reduction hood for collecting dust generated in the process of materials falling from an upstream conveyor belt to a downstream conveyor belt. The dust reduction hood is arranged inside the hood, and an exhaust mechanism causes the gas in the dust reduction hood to carry dust to move toward a second opening, and then contact with water mist sprayed by a spray mechanism to reduce dust. The gas after dust reduction is discharged from the second opening, thereby avoiding dust leakage to cause air pollution and safety hazards.

[0009] In some embodiments, a guide plate is provided on the inner wall surface of the dust suppression hood, and the guide plate extends from bottom to top and is tilted toward the second opening.

[0010] In some embodiments, the guide plate is helical in vertical direction, and in horizontal projection, the projection of the guide plate surrounds the outer periphery of the projection of the second opening.

[0011] In some embodiments, the dust cover comprises an inclined wall surface surrounding the second opening, and the inclined wall surface extends from top to bottom and is inclined away from the second opening.

[0012] In some embodiments, the spraying mechanism comprises a spray head located at the second opening, and a water supply pipe connected to the spray head to supply water to the spray head.

[0013] The air exhaust mechanism is located above the spray head.

[0014] In some embodiments, the dust removal device for belt conveying transfer point further comprises a cleaning mechanism, the dust cover comprises a mounting wall surface arranged at the bottom of the first opening, and the mounting wall surface is provided with the cleaning mechanism, and the cleaning mechanism is used to contact and clean the upstream conveying belt.

[0015] In some embodiments, the cleaning mechanism comprises a driving assembly, a first brush roller and a second brush roller, the first brush roller is used to contact and clean the upstream conveying belt, at the contact position of the first brush roller and the upstream conveying belt, the tangential direction of the rotation direction of the first brush roller is opposite to the moving direction of the upstream conveying belt, the driving assembly is connected to the first brush roller to drive the rotation of the first brush roller, and the second brush roller is in contact with the first brush roller to clean the first brush roller.

[0016] In some embodiments, the dust removal device for belt conveying transfer point further comprises a partition wall and a door, the partition wall is vertically arranged at the mounting wall surface and surrounds the cleaning mechanism, the partition wall is provided with an inspection opening penetrating therethrough, and the door is connected to the partition wall and is used to open and close the inspection opening.

[0017] In some embodiments, the dust falling device for the belt conveying transfer point further comprises a dust sensor and a controller, the dust sensor is located at the second opening and is used to detect the dust concentration in the gas discharged by the second opening, the controller is connected with the dust sensor and has a preset dust concentration threshold value, receives the dust concentration transmitted by the dust sensor and compares it with the dust concentration threshold value, and the controller is electrically connected with at least one of the spraying mechanism, the air exhaust mechanism and the cleaning mechanism, and at least one of the spraying water pressure of the spraying mechanism, the spraying flow of the spraying mechanism, the air exhaust flow rate of the air exhaust mechanism, the contact distance between the cleaning mechanism and the upstream conveying belt and the operation frequency of the cleaning mechanism is adjusted by the controller when the dust concentration transmitted by the dust sensor is outside the dust concentration threshold value.

[0018] The belt conveying device of the embodiment of the present application comprises:

[0019] The upstream conveying belt, the downstream conveying belt and the dust falling device for the belt conveying transfer point of any one of the above embodiments, the discharge end of the upstream conveying belt is arranged above the downstream conveying belt, the dust falling cover is arranged on the downstream conveying belt, and the discharge end of the upstream conveying belt extends into the dust falling cover through the first opening.

[0020] The belt conveying device of the embodiment of the present application, due to the adoption of the dust falling device for the belt conveying transfer point of the embodiment of the present application, can perform dust falling at the position where the discharge end of the upstream conveying belt is arranged vertically apart from the downstream conveying belt, so as to avoid air pollution and safety hazards caused by dust diffusion. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a schematic diagram of the belt conveying device of the embodiment of the present application;

[0022] Figure 2 is Figure 1 is an enlarged schematic diagram of the cleaning mechanism in

[0023] REFERENCE NUMERALS:

[0024] 1, dust falling cover; 11, first opening; 12, second opening; 13, inclined wall surface; 14, mounting wall surface; 2, spraying mechanism; 21, spray head; 22, water supply pipe; 3, air exhaust mechanism; 4, downstream conveying belt; 5, upstream conveying belt; 6, cleaning mechanism; 61, driving assembly; 611, driving wheel; 612, driven wheel; 613, transmission belt; 62, first brush roller; 63, second brush roller; 64, rack; 7, partition wall; 8, door. DETAILED DESCRIPTION

[0025] Embodiments of the present application are described below in detail, examples of which are shown in the accompanying drawings. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0026] Reference is made below to Figure 1 and Figure 2 A dust falling device for a belt conveying transfer point and a belt conveying device according to embodiments of the present application are described.

[0027] As shown in Figure 1 and Figure 2 , the dust falling device for a belt conveying transfer point according to embodiments of the present application comprises a dust falling cover 1, a spraying mechanism 2 and an air exhaust mechanism 3,

[0028] The dust falling cover 1 is used to cover the downstream conveying belt 4 and is provided with a first opening 11 for the upstream conveying belt 5 to extend into, the top end of the dust falling cover 1 is provided with a second opening 12, the spraying mechanism 2 and the air exhaust mechanism 3 are both located at the second opening 12, the air exhaust mechanism 3 is used to exhaust the gas in the dust falling cover 1 from the second opening 12, and the spraying mechanism 2 is used to spray into the dust falling cover 1.

[0029] As shown in Figure 1 , the upstream conveying belt 5 and the downstream conveying belt 4 are both used to convey materials such as coal and ore into the mine from left to right, along the conveying direction of the materials, the upstream conveying belt 5 is located upstream of the downstream conveying belt 4, and the downstream conveying belt 4 is located downstream of the upstream conveying belt 5.

[0030] The right end of the upstream conveying belt 5 is the discharge end, and all or the right end of the upstream conveying belt 5 is located above the downstream conveying belt 4, so that the materials fall off from the discharge end of the upstream conveying belt 5 and fall onto the downstream conveying belt 4, and at the same time, the materials will generate dust. Preferably, the right end of the upstream conveying belt 5 is located above the left end of the downstream conveying belt 4, and the left end of the downstream conveying belt 4 serves as a material receiving end.

[0031] The dust falling cover 1 covers the downstream conveying belt 4, and the area of the downstream conveying belt 4 for carrying the materials falling from the upstream conveying belt 5 is located in the dust falling cover 1, preferably but not limited to, the dust falling cover 1 covers the left end of the downstream conveying belt 4, and it should be noted that the left end of the downstream conveying belt 4 can be completely covered by the dust falling cover 1, or partially covered by the dust falling cover 1, as shown in Figure 1 which shows that part of the left end of the downstream conveying belt 4 is covered by the dust falling cover 1.

[0032] The left end of the dust falling cover 1 is provided with a first opening 11 penetrating the cover wall, and the right end of the upstream conveying belt 5 extends into the dust falling cover 1 through the first opening 11, and since the upstream conveying belt 5 has materials thereon, a certain distance is required between the top of the first opening 11 and the top of the belt of the upstream conveying belt 5, so that the materials carried by the upstream conveying belt 5 pass through and enter the dust falling cover 1.

[0033] A second opening 12 penetrating the hood wall is provided at the top of the dust hood 1. The spray mechanism 2 and the exhaust mechanism 3 are both located at the second opening 12. The exhaust mechanism 3 is used to discharge the gas in the dust hood 1 from the second opening 12, and the spray mechanism 2 is used to spray into the dust hood 1.

[0034] When the dust reduction device is running, the exhaust mechanism 3 is opened so that the gas in the dust hood 1 carries the dust and flows toward the second opening 12. The gas outside the dust hood 1 is replenished into the dust hood 1 through the first opening 11 and the gap between the dust hood 1 and the downstream conveyor belt 4, thereby causing the gas in the dust hood 1 to flow toward the second opening 12. A negative pressure environment is preferably, but not limited to, formed in the dust hood 1.

[0035] The gas carrying dust in the dust suppression hood 1 comes into contact with the water mist sprayed by the spray mechanism 2 below the second opening 12, thereby removing the dust in the gas through the water mist. The gas after dust removal is discharged from the second opening 12 to the outside of the dust suppression hood 1 under the drive of the exhaust mechanism 3. The water mist mixed with dust preferably, but not limited to, falls onto the downstream conveyor belt 4 and is transported to collect the dust and utilize it.

[0036] The dust reduction device for a belt conveyor transfer point in an embodiment of the present invention comprises a dust hood 1 for collecting dust generated in the process of materials falling from an upstream conveyor belt 5 to a downstream conveyor belt 4. The dust hood is arranged inside the dust hood, and an exhaust mechanism 3 causes the gas in the dust hood 1 to carry dust and move toward a second opening 12, and then contact the gas with water mist sprayed by a spray mechanism 2 to reduce dust. The gas after dust reduction is discharged from the second opening 12, thereby avoiding air pollution and safety hazards caused by dust escape.

[0037] In some embodiments, a guide plate (not shown in the figure) is provided on the inner wall surface of the dust suppression hood 1 , and the guide plate extends from bottom to top and is tilted toward the second opening 12 .

[0038] Specifically, the inner wall surface of the dust hood 1 is provided with a protruding guide plate, which extends from bottom to top and is inclined toward the second opening 12. The guide plate cooperates with the exhaust mechanism 3 to guide the gas in the dust hood 1 to flow toward the second opening 12, so that the dust can be more fully contacted with the water mist, so as to have a better dust reduction effect.

[0039] In some embodiments, the guide plate is in a spiral shape extending in the vertical direction. In a horizontal projection plane, the projection of the guide plate surrounds the periphery of the projection of the second opening 12 .

[0040] Specifically, the guide plate is in a spiral shape extending in the vertical direction, and can be spirally extended in the clockwise direction or the counterclockwise direction. In the horizontal projection plane, the projection of the guide plate surrounds the periphery of the projection of the second opening 12 .

[0041] The gas in the dust falling cover 1 is guided by the spiral guide plates to circle around the second opening 12 and spiral upward, so that the flowing gas can fully and uniformly carry dust, and the dust can fully and uniformly contact with the water mist, thereby having a better dust falling effect.

[0042] It can be understood that the guide plates are not limited to be spiral-shaped, and in other embodiments, the guide plates are arranged in multiple rows, and the multiple rows of guide plates are arranged around the second opening 12, each row including multiple guide plates arranged in a vertical direction, and the guide plates are inclined plates.

[0043] In some embodiments, the dust falling cover 1 includes an inclined wall 13, which surrounds the second opening 12 and extends from top to bottom and is inclined away from the second opening 12.

[0044] As shown in Figure 1 , the inclined wall 13 surrounds the second opening 12, and the inclined wall 13 extends from top to bottom and is inclined away from the second opening 12 in the horizontal direction, in other words, the inclined wall 13 extends from top to bottom and is inclined away from the vertical center line of the second opening 12. Therefore, the inclined wall 13 is converging from bottom to top, and the top of the inclined wall 13 surrounds the second opening 12.

[0045] The inclined wall 13 cooperates with the air exhaust mechanism 3 to guide the gas in the dust falling cover 1 to flow from bottom to top and gather towards the second opening 12, so that the dust in the gas can be concentrated below the spraying mechanism 2 to fully contact with the water mist for dust falling.

[0046] The inclined wall 13 can be conical or pyramidal, and the bottom of the inclined wall 13 can be horizontally arranged or have a height difference.

[0047] In some embodiments, the spraying mechanism 2 includes a spray head 21 and a water supply pipe 22, the spray head 21 is located at the second opening 12, and the water supply pipe 22 is connected to the spray head 21 to supply water to the spray head 21. The air exhaust mechanism 3 is located above the spray head 21.

[0048] As shown in Figure 1 , the spray head 21 is connected to the bottom end of the water supply pipe 22 and located at the second opening 12, the water supply pipe 22 supplies water to the spray head 21, and then the spray head 21 sprays downward to form a water mist, the water mist diffuses and falls in the dust falling cover 1, and then contacts with the dust to achieve dust falling.

[0049] The air exhaust mechanism 3 is located above the spray head 21 to drive the gas in the dust falling cover 1 to flow upward and pass through the spray head 21, so as to ensure the dust falling effect, and also to avoid the air exhaust mechanism 3 affecting the spraying effect of the spray head 21.

[0050] The air exhaust mechanism 3 can be connected to the support outside the dust cover 1 through a support, or connected to the dust cover 1 through a support, or arranged on the water supply pipe 22.

[0051] The air exhaust mechanism 3 is preferably but not limited to a fan, and the spray head 21 is preferably but not limited to a dry mist spray head.

[0052] In some embodiments, the dust removal device for the belt conveying transfer point further comprises a cleaning mechanism 6, and the dust cover 1 comprises a mounting wall surface 14 arranged at the bottom of the first opening 11, and the mounting wall surface 14 is provided with the cleaning mechanism 6, which is used to contact and clean the upstream conveying belt 5.

[0053] As shown in Figure 1 and Figure 2 , the mounting wall surface 14 of the dust cover 1 is located between the upstream conveying belt 5 and the downstream conveying belt 4, the top of the mounting wall surface 14 is provided with the first opening 11, and the inner wall surface of the mounting wall surface 14 is provided with the cleaning mechanism 6. After the belt of the upstream conveying belt 5 is unloaded at the right end of the upstream conveying belt 5, it rotates and moves to the left. During the leftward movement, the material-carrying surface of the unloaded belt of the upstream conveying belt 5 contacts the cleaning mechanism 6 to be cleaned by the cleaning mechanism 6, so as to remove the dust, residues, and gel-like substances attached to the material-carrying surface, thereby avoiding the pollution caused by the dust, residues, and gel-like substances moving out of the dust cover 1 with the belt, and avoiding the influence of the dust, residues, and gel-like substances on the conveying efficiency of the upstream conveying belt 5.

[0054] Further, the dust removal device further comprises a scraper, which is located to the right of the cleaning mechanism 6 and in contact with the upstream conveying belt 5.

[0055] Specifically, the scraper is in contact with the material-carrying surface of the unloaded belt of the upstream conveying belt 5 to remove the dust and residues attached to the material-carrying surface. During the leftward movement of the belt of the upstream conveying belt 5, the material-carrying surface first contacts the scraper and then contacts the cleaning mechanism 6, thereby ensuring that the dust, residues, and gel-like substances are removed.

[0056] In some embodiments, the cleaning mechanism 6 comprises a driving assembly 61, a first brush roller 62, and a second brush roller 63. The first brush roller 62 is used to contact and clean the upstream conveying belt 5. At the contact position of the first brush roller 62 and the upstream conveying belt 5, the tangential direction of the rotation direction of the first brush roller 62 is opposite to the moving direction of the upstream conveying belt 5. The driving assembly 61 is connected to the first brush roller 62 to drive the rotation of the first brush roller 62, and the second brush roller is in contact with the first brush roller 62 to clean the first brush roller 62.

[0057] As shown in Figure 1 and Figure 2As shown, the cleaning mechanism 6 comprises a driving assembly 61, a first brush roller 62, a second brush roller 63 and a frame 64, the frame 64 is arranged on the inner wall of the mounting wall 14, the first brush roller 62 and the second brush roller 63 are rotatably connected to the frame 64, the first brush roller 62 is in contact with the belt of the upstream conveying belt 5, the driving assembly 61 is connected to the first brush roller 62 to drive the first brush roller 62 to rotate clockwise, so that the first brush roller 62 cleans the material bearing surface of the belt of the upstream conveying belt 5, at the contact position of the first brush roller 62 and the belt of the upstream conveying belt 5, the belt moves from right to left, the tangential direction of the rotation direction of the first brush roller 62 is from left to right, and the two are opposite to each other, so that the first brush roller 62 can remove the dust, residues and gelatinous substances on the belt.

[0058] The second brush roller 63 is in contact with the first brush roller 62 to clean the first brush roller 62, and the second brush roller 63 is used to ensure the cleanliness of the first brush roller 62, so that the first brush roller 62 can better clean the belt of the upstream conveying belt 5.

[0059] The second brush roller 63 can be connected to the driving assembly 61 to rotate under the driving of the driving assembly 61, and the second brush roller 63 can be in abutment with the first brush roller 62 to rotate under the friction of the first brush roller 62. Preferably, the second brush roller 63 rotates under the friction of the first brush roller 62.

[0060] The first brush roller 62 and the second brush roller 63 are preferably but not limited to detachably connected to the frame 64, so that the first brush roller 62 and the second brush roller 63 can be disassembled for cleaning and replacement.

[0061] In some embodiments, the driving assembly 61 comprises a driving member (not shown in the figure), a driving wheel 611, a driven wheel 612 and a transmission belt 613, the driven wheel 612 is coaxially arranged with the first brush roller 62, the driving wheel 611 is rotatably connected to the frame 64 and connected to the driving member, the transmission belt 613 is wound around the outer periphery of the driving wheel 611 and the driven wheel 612 and connects the driving wheel 611 and the driven wheel 612, the driving member is preferably but not limited to a rotating motor for driving the driving wheel 611 to rotate, the driving wheel 611 drives the driven wheel 612 to rotate through the transmission belt 613, so that the driven wheel 612 drives the first brush roller 62 to rotate, thereby cleaning the belt of the upstream conveying belt 5.

[0062] It can be connected that the structure of the cleaning mechanism 6 is not limited to as Figure 1 As shown, in other embodiments, the driving assembly 61 is a driving member such as a rotating motor, which is arranged on the frame and connected to the first brush roller 62 to drive the first brush roller 62 to rotate.

[0063] In some embodiments, the dust falling device for the belt conveying transfer point further comprises a partition wall 7 and a door 8, the partition wall 7 is vertically arranged on the mounting wall surface 14 and surrounds the cleaning mechanism 6, the partition wall 7 is provided with an inspection opening, and the door 8 is connected with the partition wall 7 and is used to open and close the inspection opening.

[0064] As shown in the figure, the inner wall surface of the mounting wall surface 14 is provided with a vertically arranged partition wall 7, the partition wall 7 surrounds the outer periphery of the cleaning mechanism 6, and the partition wall 7 and the mounting wall surface 14 form a partition compartment containing the cleaning mechanism 6. The cleaning mechanism 6 is separated in the partition compartment by the partition wall 7, which avoids the damage of the cleaning mechanism 6 caused by the invasion of a large amount of dust in the dust cover 1. Figure 1

[0065] The bottom end of the partition wall 7 is open to the inner wall surface of the mounting wall surface 14, so as to allow the dust residues cleaned by the cleaning mechanism 6 from the belt of the upstream conveying belt 5 to fall onto the downstream conveying belt 4 and be conveyed by the downstream conveying belt 4 for use, thereby avoiding the accumulation of dust, residues and gelatinous substances cleaned by the cleaning mechanism 6 in the partition compartment.

[0066] The partition wall 7 is provided with an inspection opening penetrating in the horizontal direction, and the inspection opening is used for personnel to inspect the cleaning mechanism 6.

[0067] The door 8 is connected with the partition wall 7 and is used to open and close the inspection opening. When the door 8 opens the inspection opening, personnel can inspect the cleaning mechanism 6 through the inspection opening. When the door 8 closes the inspection opening, the door 8 blocks a large amount of dust in the dust cover 1, thereby avoiding the large amount of dust in the dust cover 1 from entering the partition compartment through the inspection opening. Preferably, the edge of at least one of the inspection opening and the door 8 is provided with a sealing strip, so as to ensure the sealing property when the door 8 closes the inspection opening and avoid a large amount of dust from entering the partition compartment.

[0068] Further, the door 8 is provided with an electromagnetic mechanical lock, which is used to connect the partition wall 7 to open and lock the door 8. Further, the electromagnetic mechanical lock is connected with a remote control device, so as to open the door 8 after the remote control device sends an authorized signal.

[0069] Further, the door 8 is provided with a transparent observation window, so as to observe the running condition of the cleaning mechanism 6 when the door 8 is closed.

[0070] ​In some embodiments, the dust falling device for the belt conveying transfer point further comprises a dust sensor and a controller, the dust sensor is located at the second opening 12 and is used to detect the dust concentration in the gas discharged by the second opening 12, the controller is connected with the dust sensor and has a preset dust concentration threshold value, to receive the dust concentration transmitted by the dust sensor and compare with the dust concentration threshold value, the controller is also electrically connected with at least one of the spraying mechanism 2, the air exhaust mechanism 3 and the cleaning mechanism 6, when the dust concentration transmitted by the dust sensor is outside the dust concentration threshold value, the controller adjusts at least one of the spraying water pressure of the spraying mechanism 2, the spraying flow of the spraying mechanism 2, the air exhaust flow rate of the air exhaust mechanism 3, the contact distance between the cleaning mechanism 6 and the upstream conveying belt 5, and the operation frequency of the cleaning mechanism 6.

[0071] Specifically, the controller is preferably but not limited to arranged outside the dust falling cover 1, and the dust sensor is located at the second opening 12 and is electrically connected with the controller, to detect the dust concentration in the gas discharged by the second opening 12 and transmit to the controller.

[0072] The controller compares the received dust concentration with the preset dust concentration threshold value, when the received dust concentration is outside the dust concentration threshold value, the controller can send a signal to the spraying mechanism 2, to adjust at least one of the spraying water pressure and the spraying flow of the spraying mechanism 2, specifically, when the received dust concentration is higher than the highest threshold value of the dust concentration, at least one of the spraying water pressure and the spraying flow is increased, to improve the dust falling effect, further, when the received dust concentration is lower than the minimum threshold value of the dust concentration, at least one of the spraying water pressure and the spraying flow can be reduced, to reduce the dust falling effect, but can save energy.

[0073] The controller can also send a signal to the air exhaust mechanism 3, to adjust the air exhaust flow rate of the air exhaust mechanism 3, specifically, when the received dust concentration is higher than the highest threshold value of the dust concentration, the air exhaust flow rate of the air exhaust mechanism 3 is reduced, to improve the dust falling effect.

[0074] The controller can also send a signal to the cleaning mechanism 6, to adjust at least one of the contact distance between the cleaning mechanism 6 and the upstream conveying belt 5 and the operation frequency of the cleaning mechanism 6, specifically, when the received dust concentration is higher than the highest threshold value of the dust concentration, the contact distance between the cleaning mechanism 6 and the upstream conveying belt 5 is reduced, and the operation frequency of the cleaning mechanism 6 is reduced, to weaken the cleaning effect of the cleaning mechanism 6, so as to reduce the dust generated by the cleaning of the cleaning mechanism 6, further, when the received dust concentration is lower than the minimum threshold value of the dust concentration, the contact distance between the cleaning mechanism 6 and the upstream conveying belt 5 can be increased, and the operation frequency of the cleaning mechanism 6 is increased, at this time, the cleaning effect of the cleaning mechanism 6 can be improved.

[0075] It should be noted that the controller can simultaneously send signals to the spraying mechanism 2, the air exhaust mechanism 3 and the cleaning mechanism 6 to adjust, or can send signals to one or two of them to adjust.

[0076] It should be noted that the adjustment of the contact distance of the cleaning mechanism 6 and the upstream conveying belt 5 is achieved by adjusting the height position of the first brush roller 62. Preferably, the part rack 64 provided with the first brush roller 62 can be controlled to move vertically along the mounting wall surface 14, so as to adjust the height position of the first brush roller 62. The higher the first brush roller 62, the longer the contact distance of the first brush roller 62 and the belt of the upstream conveying belt 5, and the better the cleaning effect. The lower the first brush roller 62, the shorter the contact distance of the first brush roller 62 and the belt of the upstream conveying belt 5, and the worse the cleaning effect.

[0077] As shown in Figure 1 and Figure 2 The belt conveying device of the embodiment of the present application comprises the upstream conveying belt 5, the downstream conveying belt 4 and the dust falling device for the belt conveying transfer point of the embodiment of the present application.

[0078] The discharge end of the upstream conveying belt 5 is arranged above the downstream conveying belt 4, the dust cover 1 is arranged on the downstream conveying belt 4, and the discharge end of the upstream conveying belt 5 extends into the dust cover 1 through the first opening 11.

[0079] The belt conveying device of the embodiment of the present application can perform dust falling at the position where the discharge end of the upstream conveying belt 5 and the downstream conveying belt 4 are arranged in a vertical direction, so as to avoid air pollution and safety hazards caused by dust diffusion, due to the adoption of the dust falling device for the belt conveying transfer point of the embodiment of the present application.

[0080] In some embodiments, the upstream conveying belt 5 and the downstream conveying belt 4 are both provided with a spraying assembly facing the belt. The spraying assembly is preferably but not limited to a high-pressure spray head. The spraying assembly moves from right to left to the part of the belt for washing and cleaning the belt. The spraying assembly arranged on the upstream conveying belt 5 is located on the left side of the cleaning mechanism 6.

[0081] Further, the upstream conveying belt 5 and the downstream conveying belt 4 are both provided with an air jet assembly facing the belt. The air jet assembly moves from right to left to the part of the belt and is located on the left side of the spraying assembly, so as to dry the belt.

[0082] The belt conveying device of the embodiment of the present application is preferably but not limited to applied to convey coal and ore in a coal mine.

[0083] In the description of the application, it is to be understood that the orientations or positional relationships indicated by the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the application.

[0084] In addition, the terms "first", "second", "third", etc. are only used to distinguish, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features referred to. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the application, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise explicitly specified and limited.

[0085] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or in communication with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication or interaction relationship of two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0086] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0087] In this disclosure, the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" mean that a particular feature, structure, material, or characteristic is included in at least one embodiment or example of the present disclosure. The illustrative appearances of the above-mentioned terms in various places in the specification are not necessarily referred to the same embodiment or example. Moreover, the particular features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples. Furthermore, the terminology "comprising" is used in the disclosure as comprising but not limited to, that is, it is open-ended and does not exclude the presence of additional features, structures, materials, or characteristics.

[0088] Although the embodiments of the present disclosure have been shown and described above, it is understood that the above-described embodiments are exemplary, and are not to be interpreted as limiting the present disclosure, and the ordinary skilled in the art can make changes, modifications, replacements, and variations to the above-described embodiments within the scope of the present disclosure.

Claims

1. A dust suppression device for a belt conveyor transfer point, characterized in that: include: A dust hood (1), a spray mechanism (2) and an exhaust mechanism (3), wherein the dust hood (1) is used to cover a downstream conveyor belt (4) and is provided with a first opening (11) for an upstream conveyor belt (5) to extend therethrough, a second opening (12) is provided at the top end of the dust hood (1), the spray mechanism (2) and the exhaust mechanism (3) are both located at the second opening (12), the exhaust mechanism (3) is used to discharge the gas in the dust hood (1) through the second opening (12), and the spray mechanism (2) is used to spray into the dust hood (1).

2. The dust suppression device for a belt conveyor transfer point according to claim 1, characterized in that: The inner wall surface of the dust suppression cover (1) is provided with a guide plate, which extends from bottom to top and is tilted toward the second opening (12).

3. The dust suppression device for a belt conveyor transfer point according to claim 2, characterized in that: The guide plate is in a spiral shape extending in the vertical direction, and in a horizontal projection plane, the projection of the guide plate surrounds the periphery of the projection of the second opening (12).

4. The dust suppression device for a belt conveyor transfer point according to claim 1, characterized in that: The dust suppression cover (1) comprises an inclined wall surface (13), the inclined wall surface (13) surrounds the second opening (12), extends from top to bottom and is arranged inclined away from the second opening (12).

5. The dust suppression device for a belt conveyor transfer point according to claim 1, characterized in that: The spray mechanism (2) comprises a spray head (21) and a water supply pipe (22), wherein the spray head (21) is located at the second opening (12), and the water supply pipe (22) is connected to the spray head (21) to supply water to the spray head (21); The exhaust mechanism (3) is located above the nozzle (21).

6. The dust suppression device for a belt conveyor transfer point according to any one of claims 1 to 5, characterized in that: The dust suppression hood (1) further comprises a cleaning mechanism (6). The dust suppression hood (1) comprises a mounting wall (14) provided at the bottom of the first opening (11). The mounting wall (14) is provided with the cleaning mechanism (6). The cleaning mechanism (6) is used to contact and clean the upstream conveyor belt (5).

7. The dust suppression device for a belt conveyor transfer point according to claim 6, characterized in that: The cleaning mechanism (6) comprises a driving assembly (61), a first brush roller (62) and a second brush roller (63), wherein the first brush roller (62) is used to contact and clean the upstream conveyor belt (5), and at a contact position between the first brush roller (62) and the upstream conveyor belt (5), the tangential direction of the rotation direction of the first brush roller (62) is opposite to the moving direction of the upstream conveyor belt (5), the driving assembly (61) is connected to the first brush roller (62) to drive the first brush roller (62) to rotate, and the second brush roller contacts the first brush roller (62) to clean the first brush roller (62).

8. The dust suppression device for a belt conveyor transfer point according to claim 7, characterized in that: The invention also comprises a partition wall (7) and a door (8), wherein the partition wall (7) is vertically arranged on the installation wall surface (14) and surrounds the cleaning mechanism (6), the partition wall (7) is provided with a through inspection port, and the door (8) is connected to the partition wall (7) and is used to open and close the inspection port.

9. The dust suppression device for a belt conveyor transfer point according to claim 6, characterized in that: The dust sensor also includes a dust sensor and a controller, wherein the dust sensor is located at the second opening (12) and is used to detect the dust concentration in the gas discharged from the second opening (12); the controller is connected to the dust sensor and has a preset dust concentration threshold value to receive the dust concentration transmitted by the dust sensor and compare it with the dust concentration threshold value; the controller is also electrically connected to at least one of the spraying mechanism (2), the exhaust mechanism (3) and the cleaning mechanism (6); when the dust concentration transmitted by the dust sensor is outside the dust concentration threshold value, the controller adjusts at least one of the spraying water pressure of the spraying mechanism (2), the spraying flow rate of the spraying mechanism (2), the exhaust flow rate of the exhaust mechanism (3), the contact distance between the cleaning mechanism (6) and the upstream conveyor belt (5), and the operating frequency of the cleaning mechanism (6).

10. A belt conveyor, characterized in that: include: An upstream conveyor belt (5), a downstream conveyor belt (4) and a dust reduction device for a belt conveyor transfer point according to any one of claims 1 to 9, wherein the discharge end of the upstream conveyor belt (5) is arranged above the downstream conveyor belt (4), the dust reduction cover (1) is arranged on the downstream conveyor belt (4), and the discharge end of the upstream conveyor belt (5) extends into the dust reduction cover (1) through the first opening (11).

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