An adaptive PLC pneumatic flap control device for material feeding into a mill

Abstract

This application discloses an adaptive PLC pneumatic flap control device for material feeding into a mill, comprising upper and lower control troughs installed on a discharge chute, a discharge flap fixed on a rotating shaft, a connecting rod rotating at one end of the rotating shaft, and a transmission rod rotating at the other end of the connecting rod. The upper end of the transmission rod is rotatably connected to the lower end of a cylinder via a connecting assembly, and the cylinder is electrically connected to a PLC control system. In use, based on the actual material feeding situation, the frequency and duration of the cylinder's extension and retraction can be adjusted by the PLC control system to discharge and block material. When the cylinder extends, the transmission rod and connecting rod work together to drive the rotating shaft to rotate, thereby driving the two discharge flaps to rotate, causing their bottoms to approach each other and close, thus blocking the falling material. When the cylinder shortens, the bottoms of the discharge flaps move away from each other, allowing material to be discharged. This ensures that materials meeting the mill feeding standards can be fed into the mill in a timely manner and form a circulation within the roller press circulation system, effectively reducing the circulating load on the dual-drive elevator and roller press.

Description

Technical Field

[0001] This utility model relates to the field of cement production and processing technology, and in particular to an adaptive PLC pneumatic flap control device for material feeding into the mill. Background Technology

[0002] In cement processing, coarse powder is typically fed into the mill and then into the roller press system via a feed chute. Currently, the feed chute uses a double-layer airlock valve to automatically discharge the coarse powder by gravity. However, this design has certain drawbacks. The double-layer airlock valve only opens automatically when the material accumulates to a certain weight. The central control operator cannot control the amount of coarse powder fed into the mill, resulting in material that has reached the feeding standard failing to enter the mill in time. This causes the material to circulate within the roller press system, increasing the cyclic load on the dual-drive elevator and the roller press. Utility Model Content

[0003] The purpose of this application is to provide an adaptive PLC pneumatic flap control device for material feeding into the mill, in order to solve the problem that materials that have met the feeding standards fail to be fed into the mill in time, forming a cycle in the roller press circulation system, which increases the cyclic load of the dual-drive elevator and the roller press.

[0004] To address the aforementioned technical problems, this application provides an adaptive PLC pneumatic flap control device for material feeding into a mill, comprising:

[0005] An upper and lower material control chute are installed on the material discharge chute. A pair of rotating shafts are installed through the upper and lower material control chutes. Two material discharge flaps with opposite inclinations are fixed on the rotating shafts and located inside the upper and lower material control chutes. A cylinder is fixed to the outside of the material discharge chute by a mounting assembly. A connecting rod is rotatably installed at one end of each of the two rotating shafts. A transmission rod is rotatably installed at one end of each connecting rod. The upper ends of the two transmission rods are rotatably connected to the cylinder by a connecting assembly. The cylinder is electrically connected to the PLC control system.

[0006] In a preferred embodiment, an adaptive PLC pneumatic flap control device for material feeding into a mill is provided. The mounting assembly includes an L-shaped mounting plate fixed to the outside of the discharge chute and a connecting seat fixed to the upper end of the cylinder. Two connecting blocks are fixed to the outside of the L-shaped mounting plate, and a mounting shaft is fixed on the connecting blocks. The connecting seat is fixedly connected to the mounting shaft.

[0007] In a preferred embodiment, an adaptive PLC pneumatic flap control device for material feeding into a mill is provided, wherein the connecting assembly includes a U-shaped mounting base fixed to the lower end of the cylinder, a connecting shaft is provided on the U-shaped mounting base, and the upper ends of the two transmission rods are located inside the U-shaped mounting base and rotatably connected to the connecting shaft.

[0008] As a preferred embodiment, an adaptive PLC pneumatic flap control device for material feeding into a mill is provided, wherein the upper material control trough and the lower material control trough are connected by bolts through a horizontal plate, and the horizontal plate is provided with a discharge hole communicating with the upper material control trough and the lower material control trough.

[0009] In a preferred embodiment, an adaptive PLC pneumatic flap control device for material feeding into a mill is provided, wherein an inclined baffle plate located above the rotating shaft is fixed at the upper port of the upper material control trough and the lower material control trough.

[0010] The solution requires detailed explanation of an adaptive PLC pneumatic flap control device for material feeding into a mill, characterized in that the L-shaped mounting plate and the connecting block are integrally formed.

[0011] Compared with the prior art, the present invention provides an adaptive PLC pneumatic flap control device for material feeding into a mill, comprising an upper control trough and a lower control trough installed on a feeding chute. A pair of rotating shafts are provided through the upper and lower control troughs. Two feeding flaps with opposite inclination directions are fixed on the rotating shafts and located in the upper and lower control troughs. A cylinder is fixed to the outside of the feeding chute by a mounting assembly. A connecting rod is rotatably mounted at one end of each of the two rotating shafts. A transmission rod is rotatably mounted at one end of the connecting rod. The upper ends of the two transmission rods are rotatably connected to the lower end of the cylinder by a connecting assembly. The cylinder is electrically connected to the PLC control system. During operation, the frequency and duration of cylinder extension and retraction can be adjusted via PLC control system to discharge and block material, based on the actual material entering the mill. When the cylinder extends, the transmission rod and connecting rod work together to drive the rotating shaft, which in turn drives the two corresponding discharge flaps to rotate, causing their bottoms to close together and block the material falling into the discharge chute. When the cylinder retracts, the transmission rod and connecting rod work together to drive the rotating shaft, which in turn drives the two corresponding discharge flaps to rotate, causing their bottoms to separate and discharge material. In actual operation, the discharge flaps in the lower control trough can be kept in a normally open state. This control device ensures that materials that have met the mill entry standards can enter the mill in a timely manner and form a circulation within the roller press circulation system, effectively reducing the circulating load on the dual-drive elevator and the roller press. Attached Figure Description

[0012] To more clearly illustrate the technical solution of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0013] The core of this application is to provide an adaptive PLC pneumatic flap control device for material feeding into the mill, in order to solve the problem that materials that have met the feeding standards fail to be fed into the mill in time, forming a cycle in the roller press circulation system, which increases the cyclic load of the dual-drive elevator and the roller press.

[0014] Figure 1 This is a schematic diagram of a PLC-based pneumatic flap control device for material feeding into a mill, provided in an embodiment of this application.

[0015] Figure 2 A schematic diagram of the connection structure of a cylinder, connecting rod, transmission rod, rotating shaft and unloading flap provided in an embodiment of this application;

[0016] Figure 3 This is a schematic diagram of the internal structure of an upper material control tank provided in an embodiment of this application;

[0017] In the diagram: 1. Feed chute; 2. Upper control chute; 3. Lower control chute; 4. Rotating shaft; 5. Feed flap; 6. Cylinder; 7. Connecting rod; 8. Transmission rod; 9. L-shaped mounting plate; 10. Connecting seat; 11. Connecting block; 12. Mounting shaft; 13. U-shaped mounting seat; 14. Connecting shaft; 15. Horizontal plate; 16. Bolt; 17. Inclined baffle plate. Detailed Implementation

[0018] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0019] The core of this application is to provide an adaptive PLC pneumatic flap control device for material feeding into the mill, in order to solve the problem that materials that have met the feeding standards fail to be fed into the mill in time, forming a cycle in the roller press circulation system, which increases the cyclic load of the dual-drive elevator and the roller press.

[0020] Figure 1 This is a schematic diagram of a PLC-based pneumatic flap control device for material feeding into a mill, provided in an embodiment of this application. Figure 2 This is a schematic diagram of the connection structure of a cylinder, connecting rod, transmission rod, rotating shaft, and unloading flap provided in an embodiment of this application. Figure 3 This is a schematic diagram of the internal structure of an upper material control tank provided in an embodiment of this application. See also... Figures 1 to 3 As shown.

[0021] Example 1

[0022] A PLC-based pneumatic flap control device for material feeding into a mill includes an upper control trough 2 and a lower control trough 3 installed on a discharge chute 1. A pair of rotating shafts 4 are installed through both the upper and lower control troughs 2 and 3, respectively. A discharge flap 5 is fixed to each rotating shaft 4. After installation, the discharge flap 5 is located within the upper and lower control troughs 2 and 3, respectively, and the tilt directions of the discharge flaps 5 on the two rotating shafts 4 are opposite. A cylinder 6 is fixed to the outside of the discharge chute 1 via an installation assembly. The structure and working principle of the cylinder 6 can be determined according to actual conditions. A connecting rod 7 is rotatably installed at one end of each of the two rotating shafts 4, and a transmission rod 8 is rotatably installed at one end of each connecting rod 7. The upper ends of the two transmission rods 8 are rotatably connected to the lower ends of the cylinder 6 via a connecting assembly. The cylinder 6 is electrically connected to the PLC control system. During use, the PLC control system can control the extension and retraction frequency and time of the cylinder 6 according to the actual material feeding situation, achieving the purpose of material discharge and material blockage. In actual operation, the discharge flap 5 in the lower control trough 3 can be controlled to be in a normally open state, and the opening and closing of the discharge flap 5 in the upper control trough 2 can be adjusted according to the actual material entering the mill. This control device can ensure that the material that has reached the mill entry standard can enter the mill in time and form a cycle in the roller press circulation system, effectively reducing the circulation load of the dual drive elevator and roller press.

[0023] Example 2

[0024] Based on Embodiment 1, an adaptive PLC pneumatic flap control device for material feeding into a mill is provided. In order to achieve a fixed connection between the cylinder 6 and the discharge chute 1, the mounting assembly preferably includes an L-shaped mounting plate 9 fixed to the outside of the discharge chute 1 and a connecting seat 10 fixed to the upper end of the cylinder 6. Two connecting blocks 11 are fixed to the outside of the L-shaped mounting plate 9, and a mounting shaft 12 is fixed on the connecting block 11. The connecting seat 10 is fixedly connected to the mounting shaft 12.

[0025] Based on Embodiment 1, an adaptive PLC pneumatic flap control device for material feeding into a mill is provided. In order to realize the rotational connection between the transmission rod 8 and the lower end of the cylinder 6, the connecting assembly preferably includes a U-shaped mounting base 13 fixed to the lower end of the cylinder 6. A connecting shaft 14 is provided on the U-shaped mounting base 13. The upper ends of the two transmission rods 8 are located inside the U-shaped mounting base 13 and are rotatably connected to the connecting shaft 14. In use, the upper ends of the transmission rods 8 rotate around the connecting shaft 14.

[0026] Based on Embodiment 1, an adaptive PLC pneumatic flap control device for material feeding into a mill is provided, wherein the upper material control trough 2 and the lower material control trough 3 are connected by a horizontal plate 15 and bolts 16, and the horizontal plate 15 is provided with a discharge hole that communicates with the upper material control trough 2 and the lower material control trough 3.

[0027] Based on Embodiment 1, an adaptive PLC pneumatic flap control device for material feeding into a mill is provided. In order to prevent material from falling from the gap between the upper material control trough 2 and the rotating shaft 4 or from the gap between the lower material control trough 3 and the rotating shaft 4, preferably, an inclined baffle plate 17 located above the rotating shaft 4 is also fixed at the upper port of the lower material control trough 3 and the upper material control trough 2 and the lower material control trough 3.

[0028] In this embodiment, for the material feeding adaptive PLC pneumatic flap control device, in order to improve the ease of design, the L-shaped mounting plate 9 and the connecting block 11 can preferably be set as an integrated molding structure.

[0029] The present invention provides an adaptive PLC pneumatic flap control device for material feeding into a mill, comprising an upper material control trough 2 and a lower material control trough 3 installed on a feeding chute 1. A pair of rotating shafts 4 are provided through the upper material control trough 2 and the lower material control trough 3. Two feeding flaps 5 with opposite inclination directions are fixed on the rotating shafts 4 and located in the upper material control trough 2 and the lower material control trough 3. A cylinder 6 is fixed to the outside of the feeding chute 1 by a mounting assembly. A connecting rod 7 is rotatably installed at one end of each of the two rotating shafts 4. A transmission rod 8 is rotatably installed at one end of the connecting rod 7. The upper ends of the two transmission rods 8 are rotatably connected to the lower ends of the cylinder 6 by a connecting assembly. The cylinder 6 is electrically connected to the PLC control system. During operation, the frequency and duration of cylinder 6's extension and retraction can be adjusted via PLC control system to discharge and block material, based on the actual material entering the mill. When cylinder 6 extends, it drives shaft 4 to rotate via transmission rod 8 and connecting rod 7, which in turn drives two corresponding discharge flaps 5 to rotate, causing their bottoms to close together and block the material falling into discharge chute 1. When cylinder 6 shortens, it drives shaft 4 to rotate via transmission rod 8 and connecting rod 7, which in turn drives two corresponding discharge flaps 5 to rotate, causing their bottoms to separate and discharge material. In actual operation, the discharge flaps 5 in the lower control trough 3 can be kept in a normally open state. This control device ensures that materials that have met the mill entry standards can enter the mill in time and form a circulation within the roller press circulation system, effectively reducing the circulating load on the dual-drive elevator and roller press.

[0030] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and incorporate common knowledge or customary techniques in the art disclosed herein. The specification and examples are to be considered exemplary only, and the true scope of this application is indicated by the claims.

[0031] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The embodiments of this application described above do not constitute a limitation on the scope of protection of this application.

Claims

1. A PLC-based pneumatic flap control device for material feeding into a mill, characterized in that, include: The upper material control trough (2) and the lower material control trough (3) are installed on the material discharge chute (1). A pair of rotating shafts (4) are provided through the upper material control trough (2) and the lower material control trough (3). Two material discharge flaps (5) with opposite inclination directions are fixed on the rotating shafts (4) located in the upper material control trough (2) and the lower material control trough (3). A cylinder (6) is fixed on the outside of the material discharge chute (1) by a mounting assembly. A connecting rod (7) is rotatably installed at one end of each of the two rotating shafts (4). A transmission rod (8) is rotatably installed at one end of the connecting rod (7). The upper ends of the two transmission rods (8) are rotatably connected to the lower end of the cylinder (6) through a connecting assembly. The cylinder (6) is electrically connected to the PLC control system.

2. The adaptive PLC pneumatic flap control device for material feeding into the mill according to claim 1, characterized in that, The mounting assembly includes an L-shaped mounting plate (9) fixed to the outside of the discharge chute (1) and a connecting seat (10) fixed to the upper end of the cylinder (6). Two connecting blocks (11) are fixed to the outside of the L-shaped mounting plate (9). An mounting shaft (12) is fixed on the connecting block (11). The connecting seat (10) is fixedly connected to the mounting shaft (12).

3. The adaptive PLC pneumatic flap control device for material feeding into the mill according to claim 1, characterized in that, The connecting assembly includes a U-shaped mounting base (13) fixed to the lower end of the cylinder (6), and a connecting shaft (14) is provided on the U-shaped mounting base (13). The upper ends of the two transmission rods (8) are located inside the U-shaped mounting base (13) and are rotatably connected to the connecting shaft (14).

4. The adaptive PLC pneumatic flap control device for material feeding into the mill according to claim 1, characterized in that, The upper material control groove (2) and the lower material control groove (3) are connected by a horizontal plate (15) and bolts (16). The horizontal plate (15) is provided with a discharge hole that communicates with the upper material control groove (2) and the lower material control groove (3).

5. The adaptive PLC pneumatic flap control device for material feeding into the mill according to claim 1, characterized in that, An inclined baffle plate (17) located above the rotating shaft (4) is also fixed at the upper port of the upper material control groove (2) and the lower material control groove (3).

6. The adaptive PLC pneumatic flap control device for material feeding into the mill according to claim 2, characterized in that, The L-shaped mounting plate (9) and the connecting block (11) are integrally formed.

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