Sealing device for entering rotary kiln

Abstract

The utility model discloses a sealing device for feeding of a rotary kiln, and relates to the technical field of rotary kilns. The feeding device comprises a feeding pipe, a feeding hole is formed in one side of the feeding pipe, and a discharging hole is formed in the other side of the feeding pipe; a sealing assembly is arranged in the feeding pipe and comprises an air pressure balancing device, the air pressure balancing device is fixed to one side of the top of the feeding pipe, and the rear end of one side of the air pressure balancing device communicates with a ventilation pipe. According to the sealing device, the rotating rod can be driven to rotate through rotation of the motor, then the worm and the connecting plate are driven to rotate, the transmission rod is driven to rotate through the worm gear, the transmission rod can drive the sealing plate to rotate, and therefore the purpose that inert gas is used for assisting in sealing after sealing is achieved; the inert gas leakage detection device can detect whether the inert gas leaks or not, and can achieve the purposes of monitoring whether the inert gas leaks or not in real time and giving an alarm through the cooperative arrangement of the control terminal and the alarm lamp.

Description

Technical Field

[0001] The utility model belongs to the technical field of rotary kilns, and particularly relates to a sealing device for a rotary kiln inlet. Background Technique

[0002] The sealing device for a rotary kiln inlet: is a device used to ensure the sealed connection between the feed inlet of the rotary kiln and the rotating cylinder body. It mainly includes components such as sealing rings, sealing plates, and sealing covers. Through the action of these components, it can effectively prevent materials and gases from leaking out at the feed inlet, ensuring the normal operation of the equipment and production efficiency. The sealing device is usually made of materials with high temperature resistance, wear resistance, and corrosion resistance to meet the use requirements under special working conditions such as high temperature, high pressure, and high-speed rotation of the rotary kiln.

[0003] In the existing sealing device for a rotary kiln inlet, mechanical structures are usually only used for sealing during sealing. The sealing of mechanical structures mainly relies on the friction force between contact surfaces. As the use time increases, the contact surfaces wear, the sealing effect decreases, and air leakage and powder leakage are likely to occur. Therefore, we provide a sealing device for a rotary kiln inlet to solve the above problems. Content of the Utility Model

[0004] The purpose of the utility model is to provide a sealing device for a rotary kiln inlet. Through the combined setting of a sealing component and a monitoring component, it solves the problem that in the existing sealing device for a rotary kiln inlet, only mechanical structures are usually used for sealing during sealing.

[0005] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0006] The utility model is a sealing device for a rotary kiln inlet, including a feed pipe; a feed inlet is provided on one side of the feed pipe, and a discharge outlet is provided on the other side;

[0007] A sealing component is arranged inside the feed pipe. The sealing component includes a pneumatic balance device. The pneumatic balance device is fixed on one side of the top of the feed pipe. A ventilation pipe is communicated with the rear end of one side of the pneumatic balance device. A transmission part is arranged inside the feed pipe, and sealing parts are arranged on both sides of the inner cavity of the feed pipe;

[0008] A monitoring component is arranged on the top of the pneumatic balance device. Through the monitoring component, it can detect whether the pipeline leaks air.

[0009] The utility model is further arranged such that the monitoring component includes a pressure detection gauge. The pressure detection gauge is fixed on the top of the feed pipe. The rear end of the top of the pneumatic balance device is fixedly connected with a control terminal, and the front side of the top of the pneumatic balance device is fixedly connected with an alarm lamp.

[0010] The present utility model is further configured such that the transmission member includes a motor, the motor is fixed to the rear side of the top of the feed pipe, the output end of the motor is fixedly connected with a rotating rod, and a worm is fixedly connected to the bottom surface of the rotating rod.

[0011] The present utility model is further configured such that the sealing member includes a partition plate, the partition plate is fixed inside the feed pipe, one side of the partition plate is movably connected with a transmission rod, sealing plates are fixedly connected to both sides of the surface of the transmission rod, a worm gear is fixedly connected to the surface of the transmission rod, and one side of the worm gear meshes with the worm.

[0012] The present utility model is further configured such that a connecting plate is fixedly connected to the top surface of the rotating rod, and a movable plate is fixedly connected to one side of the connecting plate.

[0013] The present utility model is further configured such that there are two partition plates, which are symmetrically fixed to both sides of the inner cavity of the feed pipe.

[0014] The present utility model is further configured such that a feed slot is opened at the bottom of the partition plate, and there are two feed slots, which are symmetrically opened at the bottom of the partition plate.

[0015] The present utility model has the following beneficial effects:

[0016] 1. By the rotation of the motor, the present utility model can drive the rotating rod to rotate, and then drive the worm and the connecting plate to rotate, so as to drive the transmission rod to rotate through the worm gear. The transmission rod will drive the sealing plate to rotate, so as to achieve the purpose of using inert gas to assist in sealing after sealing. Through the setting of the air pressure detection table, it can detect whether the inert gas leaks. Through the combined setting of the control terminal and the alarm lamp, it can achieve the purpose of real-time monitoring of gas leakage and giving an alarm.

[0017] 2. Through the setting of the sealing device, the present utility model can effectively prevent the leakage of hot gas and dust in the kiln, ensuring the operation efficiency of the rotary kiln and the cleanliness of the working environment. Through the setting of the monitoring component, it can detect whether the gas leaks in real time, improving the safety of the working environment.

[0018] Of course, it is not necessary for any product implementing the present utility model to achieve all the above advantages simultaneously. Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0020] Figure 1It is a three-dimensional structure diagram of a sealing device for a rotary kiln inlet.

[0021] Figure 2 It is a left-side three-dimensional structure diagram of a sealing device for a rotary kiln inlet.

[0022] Figure 3 It is a schematic structural diagram of a baffle in a sealing device for a rotary kiln inlet.

[0023] Figure 4 It is a schematic internal structure diagram of a feed pipe in a sealing device for a rotary kiln inlet.

[0024] Figure 5 It is Figure 4 an enlarged view of A in

[0025] In the attached drawings, the list of components represented by each reference numeral is as follows:

[0026] 1. Feed pipe; 2. Feed inlet; 3. Discharge outlet; 4. Air pressure balance device; 5. Vent pipe; 6. Air pressure detection meter; 7. Control terminal; 8. Alarm lamp; 9. Motor; 10. Rotating rod; 11. Worm; 12. Partition board; 13. Transmission rod; 14. Sealing plate; 15. Worm gear; 16. Connecting plate; 17. Movable plate; 18. Feed chute. Specific embodiments

[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model. Specific embodiment one

[0029] Please refer to Figures 1-5 , the present utility model is a sealing device for a rotary kiln inlet, including a feed pipe 1, a feed inlet 2 is provided on one side of the feed pipe 1, and a discharge outlet 3 is provided on the other side;

[0030] A sealing assembly is provided inside the feed pipe 1. The sealing assembly includes an air pressure balance device 4, the air pressure balance device 4 is fixed on one side of the top of the feed pipe 1, a vent pipe 5 is communicated with the rear end of one side of the air pressure balance device 4, a transmission member is provided inside the feed pipe 1, and sealing members are provided on both sides of the inner cavity of the feed pipe 1;

[0031] A monitoring assembly is provided on the top of the air pressure balance device 4, and the monitoring assembly can detect whether the pipeline leaks air.

[0032] Specifically, the feed inlet 2 is opened on the left side of the feed pipe 1, and the discharge port 3 is opened on the right side. The air pressure balance device 4 is fixed to the right side of the top of the feed pipe 1. The ventilation pipe 5 is connected to the left rear end of the air pressure balance device 4, and one end extends into the feed pipe 1. A sealing ring is fixedly connected at the place where the ventilation pipe 5 intersects with the feed pipe 1. Through the setting of the monitoring component, it is possible to monitor whether there is gas leakage in real time, increasing the safety during use. Specific Embodiment Two

[0034] Please refer to Figures 1-5 , on the basis of Specific Embodiment One, the monitoring component includes a barometer 6, the barometer 6 is fixed to the top of the feed pipe 1, a control terminal 7 is fixedly connected to the rear end of the top of the air pressure balance device 4, an alarm lamp 8 is fixedly connected to the front side of the top of the air pressure balance device 4, the transmission member includes a motor 9, the motor 9 is fixed to the rear side of the top of the feed pipe 1, the output end of the motor 9 is fixedly connected to a rotating rod 10, a worm 11 is fixedly connected to the bottom surface of the rotating rod 10, the sealing member includes a partition plate 12, the partition plate 12 is fixed to the inside of the feed pipe 1, one side of the partition plate 12 is movably connected to a transmission rod 13, sealing plates 14 are fixedly connected to both sides of the surface of the transmission rod 13, and a worm gear 15 is fixedly connected to the surface of the transmission rod 13. One side of the worm gear 15 meshes with the worm 11.

[0035] Specifically; the barometer 6 is fixed at the center of the left side of the top of the feed pipe 1, the control terminal 7 is fixed to the rear end of the left side of the top of the air pressure balance device 4, the alarm lamp 8 is fixed to the front end of the left side of the top of the air pressure balance device 4, the motor 9 is fixed to the rear end of the center of the top of the feed pipe 1, the transmission rod 13 is movably connected to the center of one side of the partition plate 12 through a bearing, and the sealing plates 14 are fixedly connected to both sides of the surface of the transmission rod 13. Specific Embodiment Three

[0037] Please refer to Figures 1-5 , on the basis of Specific Embodiment One and Specific Embodiment Two, a connecting plate 16 is fixedly connected to the top surface of the rotating rod 10, a movable plate 17 is fixedly connected to one side of the connecting plate 16, there are two partition plates 12, both are symmetrically fixed on both sides of the inner cavity of the feed pipe 1, and two feed slots 18 are opened at the bottom of the partition plates 12, and both are symmetrically opened at the bottom of the partition plates 12.

[0038] Specifically; the connecting plate 16 is fixed to the top surface of the rotating rod 10, and a movable plate 17 is fixedly connected to the right side. The top of the movable plate 17 contacts one end of the ventilation pipe 5. Through the setting of the movable plate 17, it is possible to control the delivery and closing of the inert gas, increasing the sealing performance during use. There are two partition plates 12, both are symmetrically fixed on both sides of the inner cavity of the feed pipe 1, and there are two feed slots 18, both are symmetrically opened at the bottom of the partition plates 12.

[0039] The working principle of the present utility model is as follows: When sealing work needs to be carried out, the user starts the motor 9 through an external controller. The motor 9 drives the rotating rod 10 to rotate. The rotating rod 10 drives the worm 11 to rotate. The worm 11 drives the worm gear 15 to rotate. The worm gear 15 drives the transmission rod 13 to rotate. The transmission rod 13 drives the sealing plate 14 to rotate. When the sealing plate 14 coincides with the feed chute 18, the purpose of sealing can be achieved. At the same time, the rotating rod 10 drives the connecting plate 16 to rotate. The connecting plate 16 drives the movable plate 17 to rotate, releasing the seal on the ventilation pipe 5. Then, the air pressure balancing device 4 injects inert gas into the feed pipe 1 through the ventilation pipe 5, and makes the air pressure inside the partition plate 12 higher than the air pressure outside the partition plate 12 and in a balanced state, so as to achieve the purpose of sealing. When the gas inside the feed pipe 1 leaks, the air pressure detection gauge 6 will detect it. Then, the control terminal 7 will transmit a signal to the staff and control the warning light 8 to be constantly on.

[0040] In the description of this specification, the description referring to terms such as "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0041] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific embodiments described. Obviously, according to the content of this specification, many modifications and variations can be made. This specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present utility model, so that those skilled in the relevant technical field can well understand and utilize the present utility model. The present utility model is only limited by the claims and their full scope and equivalents.

Claims

1. A sealing device for a rotary kiln, comprising a feed pipe (1), characterized in that: The feed pipe (1) is provided with a feed inlet (2) on one side and a discharge outlet (3) on the other side; A sealing component is arranged inside the feed pipe (1), and the sealing component includes an air pressure balance device (4). The air pressure balance device (4) is fixed to one side of the top of the feed pipe (1), and a vent pipe (5) is connected to the rear end of one side of the air pressure balance device (4). A transmission part is arranged inside the feed pipe (1), and sealing parts are arranged on both sides of the inner cavity of the feed pipe (1); A monitoring component is arranged on the top of the air pressure balancing device (4), and whether there is air leakage in the pipeline can be detected by the monitoring component.

2. A rotary kiln inlet sealing device according to claim 1, characterized in that: The monitoring component comprises an air pressure detection gauge (6), the air pressure detection gauge (6) is fixed to the top of the feed pipe (1), the top rear end of the air pressure balance device (4) is fixedly connected to a control terminal (7), and the top front side of the air pressure balance device (4) is fixedly connected to an alarm light (8).

3. The sealing device for rotary kiln inlet according to claim 1, characterized in that: The transmission member comprises a motor (9), the motor (9) is fixed to the rear side of the top of the feed pipe (1), the output end of the motor (9) is fixedly connected to a rotating rod (10), and the bottom surface of the rotating rod (10) is fixedly connected to a worm (11).

4. The sealing device for rotary kiln inlet according to claim 1, characterized in that: The sealing member comprises an isolation plate (12), wherein the isolation plate (12) is fixed inside the feed pipe (1), a transmission rod (13) is movably connected to one side of the isolation plate (12), sealing plates (14) are fixedly connected to both sides of the surface of the transmission rod (13), a worm wheel (15) is fixedly connected to the surface of the transmission rod (13), and one side of the worm wheel (15) is meshed with the worm (11).

5. The rotary kiln inlet sealing device according to claim 3, characterized in that: A connecting plate (16) is fixedly connected to the top of the surface of the rotating rod (10), and a movable plate (17) is fixedly connected to one side of the connecting plate (16).

6. A rotary kiln inlet sealing device according to claim 4, characterized in that: There are two isolation plates (12), which are symmetrically fixed on both sides of the inner cavity of the feed pipe (1).

7. The sealing device for rotary kiln inlet according to claim 4, characterized in that: The bottom of the isolation plate (12) is provided with a feed trough (18), two of which are symmetrically arranged at the bottom of the isolation plate (12).

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