A device for preventing material accumulation at the feed inlet of a rotary drum

Abstract

This utility model discloses a device for preventing material accumulation at the feed inlet of a rotary drum, relating to the field of rotary drum feeding technology. It includes a fixed base plate and a rotary drum body mounted on the upper part of the fixed base plate. A switch door and a split cover are provided on the outer side of the rotary drum body. A drive motor is mounted on the upper end of the fixed base plate, and a drive rod is fixedly installed at the output end of the drive motor. A sliding plate is also provided on the upper end of the fixed base plate. This device prevents material accumulation at the feed inlet of a rotary drum by installing a backflush nozzle inside the rotary drum body. This nozzle blows the material entering the rotary drum body, effectively reducing material accumulation at the feed inlet. Simultaneously, opening the switch door and split cover facilitates maintenance or cleaning of the rotary drum body, effectively improving the safety and ease of maintenance of the device. Furthermore, the backflush duration, interval, cycle, and backflush sequence can all be set via a PLC program to achieve automated removal of accumulated material at the feed inlet.

Description

Technical Field

[0001] This utility model relates to the field of rotary drum feeding technology, specifically a device for preventing material accumulation at the rotary drum feed inlet. Background Technology

[0002] A rotary drum cooler is a type of cylindrical cooling equipment that rapidly cools materials by rotating a drum. It is widely used in industrial fields. Taking magnesium oxide as an example, to achieve its calcination quality targets, it is usually necessary to appropriately reduce the rotational speed (Hertz number) of the drum while maintaining a constant feed rate. This extends the residence time of the material in the drum, thereby improving the processing efficiency.

[0003] However, existing rotary drum devices have certain technical problems in actual use. For example, when material is conveyed into the main body of the drum by the auger, material accumulation easily occurs in the area below the auger inside the drum. This is especially true when processing materials with fine particle size and easy agglomeration, such as magnesium oxide, which can easily form a "snowman"-like accumulation structure in this area, reducing feeding efficiency; it can even interfere with the temperature distribution in the calcination section of the rotary drum, reducing the calcination quality of the material. When blockage occurs, the feeding auger usually needs to be pulled out and cleaned manually using a stainless steel pipe. The whole process is time-consuming (about 4 hours), and there are certain safety risks in operating in a high-temperature environment, which is not conducive to the continuous operation and maintenance efficiency of the equipment.

[0004] To address the aforementioned issues, innovative design based on the existing device structure is urgently needed. Utility Model Content

[0005] The purpose of this utility model is to provide a device to prevent material accumulation at the feed inlet of a rotary drum, so as to solve the problem mentioned in the background art that in the operation of the existing rotary drum device, material easily accumulates under the auger inside the drum, forming a blockage structure. Cleaning requires disassembling the auger and manual operation, which has a long operation cycle and poses operational risks in high-temperature environments.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a device for preventing material accumulation at the feed inlet of a rotary drum, comprising a fixed base plate and a rotary drum body disposed on the upper end of the fixed base plate, wherein an opening and closing door and a split cover are disposed on the outer side of the rotary drum body, and a drive motor is disposed on the upper end of the fixed base plate, wherein a drive rod is fixedly installed at the output end of the drive motor; a moving slide plate is disposed on the upper end of the fixed base plate, wherein a gas storage tank body and an auger conveyor are fixedly installed on the upper end of the moving slide plate, and a cleaning structure is used on the outer side of the gas storage tank body to prevent material accumulation inside the rotary drum body, and the moving structure on the upper end of the fixed base plate facilitates disassembly and maintenance of the internal parts of the rotary drum body.

[0007] Preferably, the cleaning structure includes an air inlet valve, which is fixedly installed at the air inlet end of the gas storage tank body. A high-pressure connecting pipe is threaded onto the end of the air inlet valve away from the gas storage tank body. The gas is transported inside the gas storage tank body by connecting with an external air inlet device and the high-pressure connecting pipe.

[0008] Preferably, a safety valve is fixedly installed at the upper end of the main body of the gas storage tank, and a pulse valve is fixedly installed at the outlet end of the main body of the gas storage tank, and a backflush gun tube is fixedly installed at the outlet end of the pulse valve. The safety valve can prevent the gas pressure inside the main body of the gas storage tank from being too high, and the pulse valve is used to control the opening and closing of the backflush gun tube.

[0009] Preferably, a split cover is fixedly installed on the outer side of the backflush barrel, and the split cover is rotatably connected to the main body of the rotating drum. The split cover is fixedly installed on the upper end of the moving slide plate, and the air outlet of the backflush barrel is inclined downward inside the split cover.

[0010] Preferably, the motion structure includes a motion groove and a limiting groove, and both the motion groove and the limiting groove are formed at the upper end of the fixed base plate.

[0011] Preferably, the lower end of the sports skateboard is provided with a support roller, and the support roller is located inside the sports groove. A limit plate is rotatably installed on the end of the sports skateboard near the main body of the rotating drum. At the same time, the limit plate is engaged with the limit groove. By the support roller rolling inside the sports groove, the sports skateboard can be driven to move on the upper end of the fixed base plate, reducing the resistance during the movement of the sports skateboard.

[0012] Preferably, a rotating plate is rotatably mounted on the upper end of the fixed base plate, and a foot pedal is fixedly mounted on the upper end of the rotating plate. A lifting plate is fixedly mounted on the lower end of the rotating plate, and the lifting plate is located inside the lower end of the limiting groove. By moving the foot pedal downward, the rotating plate can rotate on the upper end of the fixed base plate, thereby driving the lifting plate at the lower end of the rotating plate to move upward, which can push the limiting buckle out from the inside of the limiting groove, so that the limiting buckle separates from the limiting groove.

[0013] Compared with the prior art, the beneficial effects of this utility model are: by setting a backflush tube inside the main body of the rotating drum, the backflush tube can blow the material entering the main body of the rotating drum, thereby effectively reducing the accumulation of material at the feed inlet. At the same time, by opening the switch door and the split cover, it is convenient to disassemble, repair or clean the main body of the rotating drum, which effectively improves the safety of use and the convenience of maintenance of the device.

[0014] 1. Equipped with a gas storage tank body, high-pressure gas is supplied to the interior of the gas storage tank body through an external air intake device. This allows the gas storage tank body to blow airflow into the feed port inside the rotating drum body through a backflush nozzle, preventing material accumulation, reducing the frequency of manual cleaning, and thus improving the safety and convenience of using the device.

[0015] 2. Furthermore, a limit plate is provided. By adjusting the positional relationship between the limit plate and the limit groove, the relative position between the sliding plate and the main body of the rotating drum can be controlled, thereby separating the split cover from the main body of the rotating drum and keeping the door open. This facilitates cleaning or maintenance of the inside of the rotating drum and ensures the ease of use of the device.

[0016] 3. Furthermore, by setting up support rollers, the sports skateboard can roll inside the sports groove via the support rollers, thereby reducing the resistance during the movement of the sports skateboard and improving the ease of movement of the device;

[0017] 4. Furthermore, the two backflush barrels are tilted downwards by 10° each, with a relative angle of 60°. The backflush duration, interval, cycle, and backflush sequence are preset by the PLC to achieve automated airflow cleaning of the material accumulated at the feed inlet, thereby improving the automation level of the device.

[0018] 5. Furthermore, by adding two sets of back-blowing devices, the back-blowing angle and control method are precisely calculated according to the actual working conditions. Compressed air is used to efficiently remove the accumulated material at the feed inlet, reducing the need for manual cleaning and safety hazards, ensuring the safety of operators, and improving the operational stability and reliability of the drum. Attached Figure Description

[0019] Figure 1 This is a top-view three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a top view of the three-dimensional structure of the rotating drum body of this utility model;

[0021] Figure 3 This is a three-dimensional structural diagram of the rotating drum body of this utility model, viewed from below.

[0022] Figure 4 This is a top-view three-dimensional structural diagram of the main body of the gas storage tank of this utility model;

[0023] Figure 5 This is a top-view three-dimensional structural diagram of the high-pressure connecting pipe of this utility model;

[0024] Figure 6 This is a top-view three-dimensional structural diagram of the rotating plate component of this utility model;

[0025] Figure 7 This utility model Figure 6Enlarged structural diagram at point A in the middle.

[0026] In the diagram: 1. Fixed base plate; 2. Rotary drum body; 3. Opening and closing door; 4. Drive motor; 5. Drive rod; 6. Moving slide plate; 7. Gas storage tank body; 8. Screw conveyor; 9. Split cover; 10. Backflush barrel; 11. Air inlet valve; 12. High-pressure connecting pipe; 13. Safety valve; 14. Pulse valve; 15. Moving groove; 16. Limiting groove; 17. Support roller; 18. Rotating plate; 19. Foot pedal; 20. Lifting plate; 21. Limiting buckle plate. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Example 1: In a specific embodiment, this utility model provides the following technical solution: a device for preventing material accumulation at the feed inlet of a rotary drum, such as... Figures 1-4 The basic operating process of the material accumulation device is shown in the figure.

[0029] A fixed base plate 1 and a rotating drum body 2 are provided on the upper end of the fixed base plate 1. The outer side of the rotating drum body 2 is provided with a switch door 3 and a split cover 9 to facilitate the opening and maintenance of the inside of the rotating drum. A drive motor 4 is provided on the upper end of the fixed base plate 1, and a drive rod 5 is fixedly installed on the output end of the drive motor 4 to drive the rotating drum body 2 to rotate. A moving slide plate 6 is provided on the upper end of the fixed base plate 1, and a gas storage tank body 7 and an auger conveyor 8 are fixedly installed on the upper end of the moving slide plate 6. The outer side of the gas storage tank body 7 is protected by a cleaning structure to prevent material accumulation inside the rotating drum body 2. The upper end of the fixed base plate 1 is equipped with a moving structure to facilitate the disassembly and maintenance of the inside of the rotating drum body 2.

[0030] When using this device to prevent material accumulation at the rotary drum feed inlet, the device needs to be placed in the designated working position and connected to an external power source to cool the magnesium oxide material. After the device is started, according to... Figure 1 The calcined magnesium oxide material is conveyed to the interior of the rotating drum body 2 via an auger conveyor 8. During the conveying process, the drive motor 4 drives the drive rod 5 to rotate, thereby enabling the rotating drum body 2 to rotate and process the magnesium oxide material entering it; according to Figure 4During the addition of magnesium oxide material, the backflush tube 10 continuously blows air into the interior of the rotating drum body 2, so that the magnesium oxide material is blown by the airflow when it enters the interior of the rotating drum body 2, avoiding the accumulation of magnesium oxide material and ensuring that the magnesium oxide material enters the rotating drum body 2 smoothly, thereby improving the processing efficiency of the rotating drum body 2.

[0031] Example 2: In one specific embodiment, such as Figures 1-5 As shown, in order to solve the problem of magnesium oxide material accumulation inside the main body 2 of the rotating drum, the working process of the device to avoid magnesium oxide material accumulation is disclosed.

[0032] The cleaning structure includes an air inlet valve 11, which is fixedly installed at the air inlet end of the gas storage tank body 7 to control the input of high-pressure gas. A high-pressure connecting pipe 12 is threaded onto the end of the air inlet valve 11 away from the gas storage tank body 7. The high-pressure connecting pipe 12 is used to connect to an external gas source. A safety valve 13 is fixedly installed at the upper end of the gas storage tank body 7. The safety valve 13 is used to automatically release pressure when the gas pressure in the tank exceeds a predetermined value to ensure safe operation. A pulse valve 14 is fixedly installed at the outlet end of the gas storage tank body 7, and a backflush nozzle 10 is fixedly installed at the outlet end of the pulse valve 14 to release high-pressure gas to clean the material. A split cover 9 is fixedly installed on the outside of the backflush nozzle 10, and the split cover 9 is rotatably connected to the rotating drum body 2. The split cover 9 is fixedly installed at the upper end of the moving slide plate 6. At the same time, the outlet end of the backflush nozzle 10 is inclined downward inside the split cover 9 to guide the high-pressure airflow to the feeding area inside the rotating drum body 2, thereby effectively cleaning the magnesium oxide material.

[0033] When using this device to prevent material accumulation at the rotary drum inlet, such as Figure 5 As shown, the high-pressure connecting pipe 12 needs to be connected to the external gas supply equipment. After the connection is completed, the interior of the gas storage tank body 7 begins to be filled with gas. When the gas enters the interior of the gas storage tank body 7, the on / off state of the high-pressure connecting pipe 12 is controlled by the air inlet valve 11. After the gas filling is completed inside the gas storage tank body 7, the air inlet valve 11 is closed, cutting off the connection between the high-pressure connecting pipe 12 and the gas storage tank body 7. Subsequently, the pulse valve 14 enters the working state, spraying the high-pressure gas inside the gas storage tank body 7 through the backflush nozzle 10 to blow the magnesium oxide material entering the rotary drum body 2, preventing the magnesium oxide material from accumulating inside the gas storage tank body 7. During the operation of the gas storage tank body 7, the safety valve 13 is in the working state to prevent the tank from rupturing due to excessive gas pressure inside the gas storage tank body 7. By blowing the magnesium oxide material entering the rotary drum body 2, blockage of the magnesium oxide material can be effectively avoided, thereby improving the smoothness of magnesium oxide material entering the rotary drum body 2 and the processing effect.

[0034] Example 3: Based on the above examples, such as... Figures 1-7 As shown, an embodiment of the device is disclosed that facilitates cleaning or maintenance of the interior of the rotating drum body 2;

[0035] The motion structure includes a motion groove 15 and a limiting groove 16, both of which are located on the upper end of the fixed base plate 1. The lower end of the motion slide plate 6 is provided with a support roller 17, which is located inside the motion groove 15. A limiting buckle 21 is rotatably installed on the end of the motion slide plate 6 near the rotating drum body 2, and the limiting buckle 21 is engaged with the limiting groove 16. A rotating plate 18 is rotatably installed on the upper end of the fixed base plate 1, and a foot pedal 19 is fixedly installed on the upper end of the rotating plate 18. A lifting plate 20 is fixedly installed on the lower end of the rotating plate 18, and the lifting plate 20 is located inside the lower end of the limiting groove 16.

[0036] When cleaning or repairing the main body 2 of the rotating drum, it is necessary to separate the disassembly cover 9 from the main body 2. This requires moving the sliding plate 6 above the fixed base plate 1 to move the disassembly cover 9 away from the main body 2. Before the sliding plate 6 moves, the limiting plate 21 should be separated from the limiting groove 16. During this process, the operator steps down on the pedal 19. Figure 7 As shown, the pedal 19 moves downward under the action of force and drives the rotating plate 18 to flip on the upper end of the fixed base plate 1. When the rotating plate 18 flips, it pushes the lifting plate 20 inside the limiting groove 16 to move upward, thereby pushing the limiting buckle 21 to move upward and causing the limiting buckle 21 to separate from the limiting groove 16. At this time, the motion slide 6 can move on the upper end of the fixed base plate 1. During the movement, the support roller 17 moves on the upper end of the motion groove 15, which can reduce the force required for the motion slide 6 to move and improve the convenience of the motion slide 6. Through the movement of the motion slide 6, the split cover 9 can be separated from the rotating drum body 2, and the switch door 3 can be opened, which facilitates the cleaning or maintenance of the inside of the rotating drum body 2, thereby effectively improving the convenience and practicality of the rotating drum body 2.

[0037] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for preventing material accumulation at the feed inlet of a rotating drum, comprising a fixed base plate (1) and a rotating drum body (2) disposed on the upper end of the fixed base plate (1), wherein a switch door (3) and a split cover (9) are disposed on the outer side of the rotating drum body (2), and a drive motor (4) is disposed on the upper end of the fixed base plate (1), and a drive rod (5) is fixedly installed at the output end of the drive motor (4). characterized in that The upper end of the fixed base plate (1) is provided with a sliding plate (6), and the upper end of the sliding plate (6) is fixedly installed with the main body of the gas storage tank (7) and the auger conveyor (8). The outer side of the main body of the gas storage tank (7) is protected from material accumulation inside the rotating drum body (2) by a cleaning structure. The upper end of the fixed base plate (1) is equipped with a sliding structure to facilitate disassembly and maintenance of the rotating drum body (2).

2. A device for preventing material accumulation in the feed inlet of a rotating drum according to claim 1, characterized in that: The cleaning structure includes an air inlet valve (11), which is fixedly installed at the air inlet end of the gas storage tank body (7), and a high-pressure connecting pipe (12) is threaded onto the end of the air inlet valve (11) away from the gas storage tank body (7).

3. The device for preventing material accumulation at the feed inlet of a rotary drum according to claim 2, characterized in that: A safety valve (13) is fixedly installed at the upper end of the main body (7) of the gas storage tank, and a pulse valve (14) is fixedly installed at the outlet end of the main body (7) of the gas storage tank, and a backflush gun barrel (10) is fixedly installed at the outlet end of the pulse valve (14).

4. The device for preventing material accumulation at the feed inlet of a rotary drum according to claim 3, characterized in that: A split cover (9) is fixedly installed on the outside of the backflush gun tube (10), and the split cover (9) is rotatably connected to the rotating drum body (2). The split cover (9) is fixedly installed on the upper end of the motion slide plate (6), and the air outlet of the backflush gun tube (10) is inclined downward inside the split cover (9).

5. The device for preventing material accumulation at the feed inlet of a rotary drum according to claim 4, characterized in that: The motion structure includes a motion groove (15) and a limiting groove (16), and both the motion groove (15) and the limiting groove (16) are located on the upper end of the fixed base plate (1).

6. The device for preventing material accumulation at the feed inlet of a rotary drum according to claim 5, characterized in that: The lower end of the motion slide (6) is provided with a support roller (17), and the support roller (17) is located inside the motion groove (15). The end of the motion slide (6) near the rotating drum body (2) is rotatably installed with a limit buckle (21), and the limit buckle (21) is engaged with the limit groove (16).

7. The device for preventing material accumulation at the feed inlet of a rotary drum according to claim 6, characterized in that: The upper end of the fixed base plate (1) is rotatably mounted with a rotating plate (18), and the upper end of the rotating plate (18) is fixedly mounted with a foot pedal (19), and the lower end of the rotating plate (18) is fixedly mounted with a lifting plate (20), while the lifting plate (20) is located inside the lower end of the limiting groove (16).

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