Material distribution device and coal conveying system

Abstract

The present application relates to the technical field of coal sorting equipment, and more specifically, to a sorting device and a coal conveying system. The sorting device comprises: a shell, the shell having a feed port at its upper end and discharge ports at the left and right sides of its lower end, the feed port being used to connect to a feeder drop pipe; a pendulum, the pendulum being arranged in the shell and being able to swing left and right relative to the shell to adjust the drop direction; a driving mechanism, the driving mechanism being connected between the shell and the pendulum, the driving mechanism being used to control the swing angle of the pendulum to adjust the discharge ratio of the two discharge ports. The sorting device of the embodiment of the present application can be installed at the lower end of the drop pipe of the feeder, and the swing angle of the pendulum can be controlled by the driving mechanism to distribute the coal to the two discharge ports in proportion, thereby realizing a sorting method in which the coal is distributed in proportion to different paths so that different paths can transport coal at the same time.

Description

Technical Field

[0001] The present application relates to the technical field of coal sorting equipment, and in particular to a sorting device and a coal conveying system. Background Art

[0002] In thermal power plants, a coal conveying system is generally used to transport coal.

[0003] Under normal circumstances, the conveying system usually has two coal delivery paths, and the incoming coal is sent to one of the two coal delivery paths by setting up a material distribution device, so that the incoming coal is sent to different destinations. For example, after unloading coal from the coal unloading ditch of a car or train, part of the incoming coal needs to be transported to the coal yard, and the rest needs to be transported to the raw coal bunker of the boiler.

[0004] The existing coal conveying system's material distribution device usually adopts a three-way baffle structure, that is, by controlling the position of the baffle inside the three-way, the material distribution in the overall path conversion mode can be realized, that is, the coal is transported along the A side path or the B side path. However, this type of material distribution device cannot realize the material distribution mode of distributing the future coal to different paths in proportion so that the different paths can transport the coal at the same time. Summary of the invention

[0005] The embodiments of the present application at least provide a material distribution device and a coal transportation system, which can realize a material distribution method in which coal is proportionally distributed to different paths in the future so that the different paths can transport coal at the same time.

[0006] In the first aspect, an embodiment of the present application provides a material distribution device, comprising: a shell, the shell having a feed port located at its upper end and discharge ports located on the left and right sides of its lower end, the feed port being used to be connected to a feeder drop pipe; a pendulum, the pendulum being arranged in the shell and being able to swing left and right relative to the shell to adjust the drop direction; a driving mechanism, the driving mechanism being connected between the shell and the pendulum, the driving mechanism being used to control the swing angle of the pendulum to adjust the discharge ratio of the two discharge ports.

[0007] The material distribution device of the embodiment of the present application can be installed at the lower opening of the drop pipe of the feeder, and the swing angle of the swing member can be controlled by the driving mechanism to distribute the incoming coal to the two discharge ports in proportion, thereby realizing a material distribution method in which the incoming coal is distributed to different paths in proportion so that the different paths can transport the coal at the same time. In addition, since the material distribution device can distribute the incoming coal to the two discharge ports in proportion, it can realize flexible distribution of the incoming coal to meet various coal needs.

[0008] In an optional embodiment, the swing member is a cylinder, and the two axial ends of the swing member are respectively provided with a material distribution inlet and a material distribution outlet, the material distribution inlet is connected to the lower opening of the feeder drop pipe, and the material distribution outlet faces the discharge port. This arrangement allows the incoming coal to pass through the inside of the cylinder and then fall to the discharge port. Compared with the method of using a plate-like structure for material distribution, the contact between the incoming coal and the shell is reduced, which can reduce the friction between the incoming coal and the shell, thereby reducing the material requirements for the shell, which is conducive to reducing costs and increasing service life.

[0009] In an optional embodiment, the material distribution inlet is sleeved on the feeder drop pipe. This arrangement enables the material distribution inlet of the barrel to always be connected to the lower opening of the feeder drop pipe, thereby preventing the incoming coal from falling into the gap between the pendulum and the shell, causing wear of the shell.

[0010] In an optional embodiment, the material distribution inlet is conical. This arrangement can increase the left-right swing angle of the pendulum relative to the feeder drop pipe without changing the diameter of the pendulum, thereby facilitating the reduction of the diameter of the pendulum, which is beneficial to reducing the structural size of the material distribution device.

[0011] In an optional embodiment, the swing center of the swing element is located at the material distribution inlet. This arrangement can reduce the horizontal movement distance of the left and right ends of the material distribution inlet when the swing angle of the swing element remains unchanged, thereby facilitating the reduction of the diameter of the swing element and facilitating the reduction of the structural size of the material distribution device.

[0012] In an optional embodiment, the width of the left and right side walls of the swing member gradually decreases from the material distribution inlet to the material distribution outlet. This arrangement can form an angle between the left and right side walls of the swing member and the center line, and the angle can reduce the maximum swing angle of the swing member, thereby facilitating the reduction of the structural size of the material distribution device.

[0013] In an optional embodiment, the pendulum has a swing shaft, the driving mechanism is connected to the swing shaft, and the driving mechanism is used to drive the swing shaft to rotate to drive the pendulum to swing left and right.

[0014] In an optional embodiment, the driving mechanism includes: a mounting frame, the mounting frame is arranged on the housing; a connecting rod, the first end of the connecting rod is connected to the swing shaft; an electric push rod, the first end of the electric push rod is hinged to the mounting frame, and the second end of the electric push rod is hinged to the second end of the connecting rod; a motor, the motor is connected to the electric push rod and is used to drive the electric push rod to extend and retract, so as to drive the dispensing barrel to swing left and right relative to the housing through the connecting rod. In this way, the driving mechanism can drive the swing shaft to swing the pendulum left and right.

[0015] In an optional embodiment, the driving mechanism is arranged on the outer wall of the shell. In this way, there is no need to reserve installation space for the driving mechanism between the shell and the ornament, which can facilitate reducing the structural size of the shell, thereby facilitating reducing the structural size of the material distribution device.

[0016] In a second aspect, an embodiment of the present application further provides a coal transportation system, comprising a feeder and the material dividing device of the first aspect.

[0017] In the coal conveying system of the embodiment of the present application, the material distribution device can be installed at the lower opening of the drop pipe of the feeder, and the swing angle of the swing member can be controlled by the driving mechanism to distribute the incoming coal to the two discharge ports in proportion, thereby realizing a material distribution method in which the incoming coal is distributed to different paths in proportion so that the different paths can transport the coal at the same time. In addition, since the material distribution device can distribute the incoming coal to the two discharge ports in proportion, it can realize flexible distribution of the incoming coal to meet various coal needs.

[0018] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are specifically cited below and described in detail with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. The drawings herein are incorporated into the specification and constitute a part of the specification. These drawings illustrate embodiments consistent with the present application and are used together with the specification to illustrate the technical solutions of the present application. It should be understood that the following drawings only illustrate certain embodiments of the present application and should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can also be obtained based on these drawings without creative work.

[0020] Figure 1 A schematic diagram of a material dispensing device provided in an embodiment of the present application is shown;

[0021] Figure 2 A schematic diagram showing the connection between the ornament and the driving mechanism provided in the embodiment of the present application is shown;

[0022] Reference numerals:

[0023] 100. Feeder drop pipe; 200. Feeding device; 210. Housing; 211. Feed inlet; 212. Feeding outlet; 220. Orbiter; 221. Swinging shaft; 222. Feeding inlet; 223. Feeding outlet; 230. Driving mechanism; 231. Mounting frame; 232. Connecting rod; 233. Electric push rod; 234. Motor. DETAILED DESCRIPTION

[0024] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application.

[0025] The embodiments of the present application will be described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and should not be construed as limitations on the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

[0026] The term "first" or "second" in the specification and claims of this application may include one or more of the features explicitly or implicitly. In the description of this application, unless otherwise specified, "plurality" means two or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally means that the objects connected before and after are in an "or" relationship.

[0027] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0028] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 this application can be understood according to specific circumstances.

[0029] refer to Figure 1 and Figure 2, the embodiment of the present application provides a material distribution device 200, including: a housing 210, a swing member 220 and a driving mechanism 230. The housing 210 has a feed port 211 located at its upper end and a discharge port 212 located at the left and right sides of its lower end, and the feed port 211 is used to connect to the feeder drop pipe 100. The swing member 220 is arranged in the housing 210 and can swing left and right relative to the housing 210 to adjust the drop direction. The driving mechanism 230 is connected between the housing 210 and the swing member 220, and the driving mechanism 230 is used to control the swing angle of the swing member 220 to adjust the discharge ratio of the two discharge ports 212. When used specifically, the material distribution device 200 can be installed at the lower port of the drop pipe of the feeder, and the swing angle of the swing member 220 can be controlled by the driving mechanism 230, so that the future coal is proportionally distributed to the two discharge ports 212, so that the future coal can be proportionally distributed to different paths so that different paths can transport coal at the same time. In addition, since the material distribution device 200 can distribute the incoming coal to the two discharge ports 212 in proportion, it can achieve flexible distribution of the incoming coal to meet various coal needs.

[0030] In a specific implementation, the discharge ratio of the two discharge ports 212 can be 1:9, 2:8, 3:7, 4:6, 5:5, 6:4, 7:3, 8:2 or 9:1, etc., so that the incoming coal can be distributed to the two discharge ports 212 in proportion, so that the incoming coal can be transported to different paths in proportion at the same time. In addition, the discharge ratio of the two discharge ports 212 can also be 0:10 or 10:0, so that the incoming coal can fall only from the left discharge port 212 or the right discharge port 212.

[0031] In some embodiments, the housing 210 may be a three-way structure. Specifically, the housing 210 has three interfaces connected to the interior thereof, one of which is a feed port 211 , and the other two are discharge ports 212 .

[0032] In some embodiments, swing shafts 221 may be provided on opposite sides of the swing member 220, and the swing member 220 is connected to the housing 210 via the swing shafts 221. Specifically, one axial end of the swing shaft 221 is connected and fixed to the swing member 220, and the other end is rotatably connected to the housing 210. When the swing shaft 221 rotates circumferentially relative to the housing 210, the swing member 220 can swing left and right relative to the housing 210. In this way, the swing member 220 can swing left and right relative to the housing 210. However, the embodiments of the present application do not limit this in any way.

[0033] In some embodiments, the pendulum 220 may be a cylinder, and the axial ends of the pendulum 220 are respectively provided with a material distribution inlet 222 and a material distribution outlet 223, the material distribution inlet 222 is connected to the lower opening of the feeder drop pipe 100, and the material distribution outlet 223 faces the discharge port 212. In the specific setting, the axial ends of the cylinder are respectively the material distribution inlet 222 and the material distribution outlet 223, and the material distribution inlet 222 of the cylinder can always be connected to the lower opening of the feeder drop pipe 100. This setting allows the incoming coal to pass through the inside of the cylinder and fall to the discharge port 212. Compared with the method of using a plate-like structure for material distribution, the contact between the incoming coal and the shell 210 is reduced, which can reduce the friction between the incoming coal and the shell 210, thereby reducing the material requirements for the shell 210, which is conducive to reducing costs and improving service life. However, the embodiments of the present application do not make any limitation to this.

[0034] It should be noted that in order to prevent coal from falling outside the cylinder, in the specific setting, the distribution inlet 222 of the cylinder can be sleeved on the lower mouth of the feeder drop pipe 100, or the diameter of the cylinder can be increased so that the fallen coal can always fall into the distribution inlet 222 of the cylinder.

[0035] In some embodiments, the pendulum 220 may be made of wear-resistant steel plates. For example, the sidewall of the pendulum 220 may be made of high-chromium alloy wear-resistant steel plates, and the cylindrical pendulum 220 may be formed by welding.

[0036] In some embodiments, the material distribution inlet 222 can be sleeved on the feeder drop pipe 100. This arrangement enables the material distribution inlet 222 of the barrel to always be connected to the lower opening of the feeder drop pipe 100, thereby preventing the incoming coal from falling into the gap between the pendulum 220 and the shell 210, causing wear of the shell 210. However, the embodiments of the present application do not make any limitation to this.

[0037] It should be noted that when the material distribution inlet 222 is sleeved on the feeder drop pipe 100, in order to enable the pendulum 220 to swing left and right relative to the outer shell 210, during the specific setting, there should be a certain distance between the left and right ends of the material distribution inlet 222 of the pendulum 220 and the feeder drop pipe 100.

[0038] In some embodiments, the material distribution inlet 222 may be conical. In the specific setting, the left and right ends of the material distribution inlet 222 may be cut to make the material distribution inlet 222 conical. In this way, the angle of the swing of the swing member 220 relative to the feeder drop tube 100 can be increased while the diameter of the swing member 220 remains unchanged, so that the diameter of the swing member 220 can be reduced, which is conducive to reducing the structural size of the material distribution device 200. However, the embodiments of the present application do not make any limitation to this.

[0039] In some embodiments, the swing center of the swing member 220 may be located at the material distribution inlet 222. That is, the swing axis 221 of the swing member 220 is arranged on both sides of the material distribution inlet 222 of the swing member 220. This arrangement can reduce the horizontal movement distance of the left and right ends of the material distribution inlet 222 while keeping the swing angle of the swing member 220 unchanged, thereby facilitating the reduction of the caliber of the swing member 220, which is conducive to reducing the structural size of the material distribution device 200. However, the embodiments of the present application do not make any limitation to this.

[0040] In some embodiments, the width of the left and right side walls of the pendulum 220 can be gradually reduced from the direction of the material distribution inlet 222 to the material distribution outlet 223. That is to say, the pendulum 220 can be in the shape of a cone. Such a setting can form an angle between the left and right side walls of the pendulum 220 and the center line, and the angle can reduce the maximum swing angle of the pendulum 220, so that it is convenient to reduce the structural size of the material distribution device 200. Specifically, when the pendulum 220 is set at the maximum swing angle, the coal can only be allowed to fall to the one side discharge port 212. Since the width of the left and right side walls of the pendulum 220 is gradually reduced from the direction of the material distribution inlet 222 to the material distribution outlet 223, the pendulum 220 only needs to swing a smaller angle to achieve that the coal only falls to the one side discharge port 212. Therefore, according to the above setting, the maximum swing angle of the pendulum 220 can be reduced, so that it is convenient to reduce the structural size of the material distribution device 200. However, the embodiment of the present application does not make any limitation to this.

[0041] In some embodiments, the driving mechanism 230 may be connected to the swing shaft 221 of the swing member 220, and the driving mechanism 230 is used to drive the swing shaft 221 to rotate, so as to drive the swing member 220 to swing left and right. However, the embodiments of the present application do not limit this. In other embodiments, the driving mechanism 230 may also be connected to the side wall of the swing member 220, and the driving mechanism 230 directly drives the swing member 220 to swing left and right.

[0042] In some embodiments, the driving mechanism 230 may include a mounting frame 231, a connecting rod 232, an electric push rod 233, and a motor 234. The mounting frame 231 is disposed on the housing 210. The first end of the connecting rod 232 is connected to the swing shaft 221. The first end of the electric push rod 233 is hinged to the mounting frame 231. The second end of the electric push rod 233 is hinged to the second end of the connecting rod 232. The motor 234 is connected to the electric push rod 233 and is used to drive the electric push rod 233 to extend and retract, so as to drive the dispensing barrel to swing left and right relative to the housing 210 through the connecting rod 232. Specifically, when the motor 234 controls the electric push rod 233 to extend, the electric push rod 233 drives the swing shaft 221 to rotate counterclockwise through the connecting rod 232, so that the pendulum 220 swings to the right. When the motor 234 controls the electric push rod 233 to retract, the electric push rod 233 drives the swing shaft 221 to rotate clockwise through the connecting rod 232, so that the pendulum 220 swings to the left. This arrangement enables the drive mechanism 230 to drive the swing shaft 221 to swing the swing member 220 left and right. However, the present application embodiment does not make any limitation to this. In other embodiments, the electric push rod 233 can also be replaced by a hydraulic push rod.

[0043] In some embodiments, the driving mechanism 230 can be arranged on the outer wall of the housing 210. For example, when the swing shaft 221 of the pendulum 220 passes through the outer side wall, the driving mechanism 230 can be arranged on the outer wall of the housing 210 and connected to the portion of the swing shaft 221 exposed outside the housing 210. With this arrangement, there is no need to reserve installation space for the driving mechanism 230 between the housing 210 and the pendulum 220, which can facilitate reducing the structural size of the housing 210, thereby facilitating reducing the structural size of the material distributing device 200. However, the embodiments of the present application do not make any limitation to this.

[0044] The embodiment of the present application also provides a coal conveying system, including a feeder and a material distribution device 200, the material distribution device 200 can be installed at the lower opening of the drop pipe of the feeder, and the swing angle of the pendulum 220 can be controlled by the driving mechanism 230, so as to distribute the incoming coal to the two discharge ports 212 in proportion, thereby realizing the material distribution method of distributing the incoming coal to different paths in proportion so that the different paths can transport the coal at the same time. In addition, since the material distribution device 200 can distribute the incoming coal to the two discharge ports 212 in proportion, it can realize the flexible distribution of the incoming coal to meet various coal needs.

[0045] One or more embodiments of this specification are intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of one or more embodiments of this specification should be included in the scope of protection of this application.

[0046] The above are only specific implementations of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A material distribution device, characterized in that: include: A housing, wherein the housing has a feed port at its upper end and discharge ports at left and right sides of its lower end, wherein the feed port is used to be connected to a feeder drop pipe; A swinging piece, the swinging piece is arranged in the shell and can swing left and right relative to the shell to adjust the direction of material falling; A driving mechanism is connected between the housing and the pendulum, and is used to control the swing angle of the pendulum to adjust the discharge ratio of the two discharge ports.

2. The material distribution device according to claim 1, characterized in that: The rocker is a cylinder, and a material distribution inlet and a material distribution outlet are respectively arranged at two axial ends of the rocker, the material distribution inlet is connected to the lower opening of the feeder drop pipe, and the material distribution outlet faces the discharge port.

3. The material distribution device according to claim 2, characterized in that: The material distribution inlet is sleeved on the feeder drop pipe.

4. The material distribution device according to claim 3, characterized in that: The material distribution inlet is conical.

5. The material distribution device according to claim 3, characterized in that: The swing center of the swing element is located at the material distribution inlet.

6. The material distribution device according to claim 3, characterized in that: The width of the left and right side walls of the ornament gradually decreases from the material distribution inlet to the material distribution outlet.

7. The material distribution device according to claim 1, characterized in that: The pendulum has a swing shaft, and the driving mechanism is connected to the swing shaft. The driving mechanism is used to drive the swing shaft to rotate, so as to drive the pendulum to swing left and right.

8. The material distribution device according to claim 7, characterized in that: The driving mechanism comprises: A mounting frame, the mounting frame is arranged on the housing; A connecting rod, a first end of which is connected to the swing shaft; An electric push rod, wherein a first end of the electric push rod is hinged to the mounting frame, and a second end of the electric push rod is hinged to the second end of the connecting rod; A motor is connected to the electric push rod and is used to drive the electric push rod to extend and retract, so as to drive the distributing barrel to swing left and right relative to the shell through the connecting rod.

9. The material distribution device according to claim 7, characterized in that: The driving mechanism is arranged on the outer wall of the shell.

10. A coal transportation system, characterized in that: It comprises a feeder and a material dividing device as described in any one of claims 1 to 9.

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