Air cannon one-way nozzle plugging device

Abstract

The utility model discloses an air cannon one-way nozzle plugging device, including front nozzle subassembly and rear nozzle subassembly, the front nozzle subassembly is including front nozzle, the rear nozzle subassembly includes rear nozzle, one end of front nozzle stretches into the rear nozzle, and the open end of the stretch-in end of front nozzle is the inclined plane, the top surface of rear nozzle is provided with the nozzle one-way baffle, the nozzle one-way baffle movablely covers up on the inclined plane of front nozzle, the nozzle one-way baffle top surface is provided with push and pull, the top surface outer wall of rear nozzle is provided with pneumatic cylinder, the piston rod end of pneumatic cylinder is connected nozzle one-way baffle, and pneumatic cylinder connects electromagnetic valve, the device of the utility model is widely used in air cannon nozzle upside down and the occasion that there is gas positive pressure in the stock bin, and this air cannon one-way nozzle plugging device greatly improves the stability of air cannon work, improves the service life of air cannon, and greatly improves the application range of air cannon.

Description

Technical Field

[0001] This utility model belongs to the field of air cannon technology, and specifically relates to a one-way nozzle sealing device for air cannons. This utility model is a special device used in the workplace of air cannons to prevent material from the silo from flowing back into the air cannon and affecting the normal operation of the air cannon. It is widely used in industries such as cement, metallurgy, chemical, coal, power, mining, coking, and steel. Background Technology

[0002] Currently, due to limited installation space, air cannons often have to be installed upside down. This inverted installation frequently leads to damage to the air cannon piston and dry bearings as material flows back through the nozzle. To address these installation conditions, a one-way nozzle sealing device has been designed to prevent material from the hopper from flowing back into the air cannon. Utility Model Content

[0003] This invention provides a one-way nozzle sealing device for an air cannon to solve the problems in the prior art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: An air cannon one-way nozzle sealing device includes a front nozzle assembly 1 and a rear nozzle assembly 23. The front nozzle assembly 1 includes a front nozzle, and the rear nozzle assembly 23 includes a rear nozzle. One end of the front nozzle extends into the rear nozzle, and the open end of the extended end of the front nozzle is an inclined surface. A nozzle one-way baffle 6 is provided on the top surface of the rear nozzle. The nozzle one-way baffle 6 is movably covered on the inclined surface of the front nozzle. A push-pull rod 13 is provided on the top surface of the nozzle one-way baffle 6. A cylinder 14 is provided on the outer wall of the top surface of the rear nozzle. The piston rod end of the cylinder 14 is connected to the nozzle one-way baffle 6. A solenoid valve 24 is also connected to the cylinder 14.

[0005] Furthermore, connecting flanges are provided on the outer wall of the front nozzle and the end of the rear nozzle. One end of the front nozzle extends into the rear nozzle. The connecting flange on the outer wall of the front nozzle matches the connecting flange at the end of the rear nozzle and is fixedly connected by the front and rear nozzle assembly connecting component. The front and rear nozzle assembly connecting component includes front and rear nozzle assembly fixing bolts 2, front and rear nozzle assembly fixing nuts 3, front and rear nozzle assembly fixing washers 4, and fixing spring washers 5. Specifically, the front and rear nozzle assembly fixing bolts 2 pass through the front and rear nozzle assembly fixing washers 4, fixing spring washers 5, the connecting flange of the front nozzle, the connecting flange of the rear nozzle, and the front and rear nozzle assembly fixing nuts 3 in sequence and are tightened.

[0006] Furthermore, a nozzle one-way baffle opening for installing the nozzle one-way baffle 6 is provided on the top surface of the rear nozzle, and a nozzle one-way baffle fixing bracket 7 is provided on the top outer wall of the rear nozzle.

[0007] Furthermore, the nozzle one-way baffle fixing bracket 7 is fixed to the outer wall of the top of the rear nozzle through the nozzle one-way baffle connecting assembly. There are two nozzle one-way baffle fixing brackets 7. The nozzle one-way baffle connecting assembly includes a nozzle one-way baffle fixing bolt 8, a nozzle one-way baffle fixing washer 9, and a nozzle one-way baffle fixing spring washer 10. The nozzle one-way baffle fixing bolt 8 passes through the nozzle one-way baffle fixing washer 9, the nozzle one-way baffle fixing spring washer 10, and the end of the nozzle one-way baffle fixing bracket 7 in sequence and is tightened.

[0008] Furthermore, the head of the push-pull rod 13 and the end of the piston rod of the cylinder 14 are both connected to the end of the one-way baffle 6 of the connecting pipe through the push-pull rod-to-cylinder connecting pin 11 and the push-pull rod-to-cylinder connecting opening pin 12; the push-pull rod-to-cylinder connecting pin 11 passes through one one-way baffle fixing bracket 7 of the nozzle in sequence, the connecting hole of the head of the push-pull rod 13, the connecting hole of the end of the piston rod of the cylinder 14, and another one-way baffle fixing bracket 7 of the nozzle, and is fixed by the push-pull rod-to-cylinder connecting opening pin 12.

[0009] Furthermore, one end of the push-pull rod 13 is inserted into a fixed push-pull rod fixing bracket 19 provided on the top surface of the nozzle one-way baffle 6, and the other end of the push-pull rod 13 is inserted into a movable push-pull rod fixing bracket 19. The movable push-pull rod fixing bracket 19 is fixed to the top surface of the nozzle one-way baffle 6 by a push-pull rod fixing assembly. The push-pull rod fixing assembly includes a push-pull rod fixing bolt 20, a push-pull rod fixing washer 21, and a push-pull rod fixing spring washer 22. The push-pull rod fixing bolt 20 passes through the push-pull rod fixing washer 21, the push-pull rod fixing spring washer 22, the movable push-pull rod fixing bracket 19, and the nozzle one-way baffle 6 in sequence and is tightened.

[0010] Furthermore, the cylinder 14 is placed on the outer wall of the top of the rear nozzle, and the cylinder fixing bracket 18 is fastened to the outside of the cylinder 14. The end of the cylinder fixing bracket 18 is fixed to the outer wall of the top of the rear nozzle by a cylinder fixing assembly. The cylinder fixing assembly includes a cylinder fixing bolt 15, a cylinder fixing washer 16, and a cylinder fixing spring washer 17. The cylinder fixing bolt 15 passes through the cylinder fixing washer 16, the cylinder fixing spring washer 17, the end of the cylinder fixing bracket 18, and the outer wall of the top of the rear nozzle in sequence and is tightened.

[0011] Furthermore, the cylinder mounting bracket 18 consists of two sets.

[0012] Furthermore, the cylinder 14 and the solenoid valve 24 are connected by a flexible air tube 25.

[0013] Furthermore, the front nozzle is provided with a flange at the end away from the rear nozzle, and the rear nozzle is also provided with a flange at the end away from the front nozzle. The flanges are used to connect other components.

[0014] Furthermore, an air cannon one-way nozzle sealing device is a pure metal structure, meaning that all components of the air cannon one-way nozzle sealing device are made of metal.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The one-way nozzle sealing device of this utility model is widely applicable to situations where the air cannon nozzle is inverted and there is positive pressure of gas in the hopper. This one-way nozzle sealing device greatly improves the stability of the air cannon operation, extends the service life of the air cannon, and expands the application range of the air cannon.

[0016] 2. The air cannon one-way nozzle sealing device of this utility model is made of all-metal material, which greatly improves the temperature resistance of the device and the air cannon, and is more suitable for high-temperature places such as cement kiln preheaters, grate coolers, and stepped pre-combustion furnaces.

[0017] 3. The one-way nozzle sealing device for the air cannon of this utility model has a simple structure and is easy to install and maintain. It can be opened when the air cannon needs to be operated and closed when it does not need to be operated, which greatly increases the convenience of on-site maintenance. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is an exploded view of this utility model; Figure 3 This is the front view of this utility model; Figure 4 This is a diagram showing the nozzle in its closed state in this utility model; Figure 5 This is a diagram showing the nozzle in the open state in this utility model; The components are: 1-front nozzle assembly, 2-front and rear nozzle assembly fixing bolts, 3-front and rear nozzle assembly fixing nuts, 4-front and rear nozzle assembly fixing washers, 5-fixing spring washers, 6-nozzle one-way baffle, 7-nozzle one-way baffle fixing bracket, 8-nozzle one-way baffle fixing bolts, 9-nozzle one-way baffle fixing washers, 10-nozzle one-way baffle fixing spring washers, 11-push-pull rod and cylinder connecting pin, 12-push-pull rod and cylinder connecting opening pin, 13-push-pull rod, 14-cylinder, 15-cylinder fixing bolts, 16-cylinder fixing washers, 17-cylinder fixing spring washers, 18-cylinder fixing bracket, 19-push-pull rod fixing bracket, 20-push-pull rod fixing bolts, 21-push-pull rod fixing washers, 22-push-pull rod fixing spring washers, 23-rear nozzle assembly, 24-solenoid valve, 25-soft air hose. Detailed Implementation

[0019] The present invention will be further described below with reference to the embodiments.

[0020] like Figure 1 As shown, an air cannon one-way nozzle sealing device includes a front nozzle assembly 1 and a rear nozzle assembly 23. The front nozzle assembly 1 includes a front nozzle, and the rear nozzle assembly 23 includes a rear nozzle. One end of the front nozzle extends into the rear nozzle, and the open end of the extended end of the front nozzle is an inclined surface. A nozzle one-way baffle 6 is provided on the top surface of the rear nozzle. The nozzle one-way baffle 6 is movably covered on the inclined surface of the front nozzle. A push-pull rod 13 is provided on the top surface of the nozzle one-way baffle 6. A cylinder 14 is provided on the outer wall of the top surface of the rear nozzle. The piston rod end of the cylinder 14 is connected to the nozzle one-way baffle 6. The cylinder 14 is connected to a solenoid valve 24 through a flexible air pipe 25.

[0021] As a preferred embodiment, connecting flanges are provided on the outer wall of the front nozzle and at the end of the rear nozzle. One end of the front nozzle extends into the rear nozzle. The connecting flange on the outer wall of the front nozzle fits into the connecting flange at the end of the rear nozzle and is fixedly connected by the front and rear nozzle assembly connecting component. The front and rear nozzle assembly connecting component includes front and rear nozzle assembly fixing bolts 2, front and rear nozzle assembly fixing nuts 3, front and rear nozzle assembly fixing washers 4, and fixing spring washers 5. Specifically, the front and rear nozzle assembly fixing bolts 2 pass through the front and rear nozzle assembly fixing washers 4, fixing spring washers 5, the connecting flange of the front nozzle, the connecting flange of the rear nozzle, and the front and rear nozzle assembly fixing nuts 3 in sequence and are tightened.

[0022] As a preferred embodiment, a nozzle one-way baffle opening for mounting the nozzle one-way baffle 6 is provided on the top surface of the rear nozzle, and a nozzle one-way baffle fixing bracket 7 is provided on the top outer wall of the rear nozzle; the nozzle one-way baffle fixing bracket 7 is fixed to the top outer wall of the rear nozzle through a nozzle one-way baffle connecting assembly, and there are two nozzle one-way baffle fixing brackets 7; the nozzle one-way baffle connecting assembly includes a nozzle one-way baffle fixing bolt 8, a nozzle one-way baffle fixing washer 9, and a nozzle one-way baffle fixing spring washer 10. Specifically, the nozzle one-way baffle fixing bolt 8 passes through the ends of the nozzle one-way baffle fixing washer 9, the nozzle one-way baffle fixing spring washer 10, and the nozzle one-way baffle fixing bracket 7 in sequence and is tightened.

[0023] As a preferred embodiment, the head of the push-pull rod 13 and the end of the piston rod of the cylinder 14 are both connected to the end of the connecting nozzle one-way baffle 6 via a push-pull rod-cylinder connecting pin 11 and a push-pull rod-cylinder connecting opening pin 12. Specifically, the push-pull rod-cylinder connecting pin 11 passes sequentially through a nozzle one-way baffle fixing bracket 7, the connecting hole at the head of the push-pull rod 13, the connecting hole at the end of the piston rod of the cylinder 14, and another nozzle one-way baffle fixing bracket 7, and is fixed by the push-pull rod-cylinder connecting opening pin 12.

[0024] As a preferred embodiment, one end of the push-pull rod 13 is inserted into a fixed push-pull rod fixing bracket 19 provided on the top surface of the nozzle one-way baffle 6, and the other end of the push-pull rod 13 is inserted into a movable push-pull rod fixing bracket 19. The movable push-pull rod fixing bracket 19 is fixed to the top surface of the nozzle one-way baffle 6 by a push-pull rod fixing assembly. The push-pull rod fixing assembly includes a push-pull rod fixing bolt 20, a push-pull rod fixing washer 21, and a push-pull rod fixing spring washer 22. Specifically, the push-pull rod fixing bolt 20 passes through the push-pull rod fixing washer 21, the push-pull rod fixing spring washer 22, the movable push-pull rod fixing bracket 19, and the nozzle one-way baffle 6 in sequence and is tightened.

[0025] As a preferred embodiment, the cylinder 14 is placed on the outer wall of the top of the rear nozzle, and the cylinder mounting bracket 18 is fastened to the outside of the cylinder 14. The end of the cylinder mounting bracket 18 is fixed to the outer wall of the top of the rear nozzle by a cylinder fixing assembly. The cylinder fixing assembly includes a cylinder fixing bolt 15, a cylinder fixing washer 16, and a cylinder fixing spring washer 17. Specifically, the cylinder fixing bolt 15 passes through the cylinder fixing washer 16, the cylinder fixing spring washer 17, the end of the cylinder mounting bracket 18, and the outer wall of the top of the rear nozzle in sequence and is tightened. Preferably, there are two sets of cylinder mounting brackets 18.

[0026] As a preferred embodiment, the end of the front nozzle away from the rear nozzle is provided with a flange, and the end of the rear nozzle away from the front nozzle is also provided with a flange, the flange being used for connecting other components.

[0027] As a preferred embodiment, the air cannon one-way nozzle sealing device is a pure metal structure, meaning that all components of the air cannon one-way nozzle sealing device are made of metal. This utility model's air cannon one-way nozzle sealing device is made entirely of metal, which greatly improves the temperature resistance of the device and the air cannon, making it more suitable for high-temperature environments such as cement kiln preheaters, grate coolers, and stepped pre-combustion furnaces.

[0028] like Figure 4 As shown, when the nozzle one-way baffle 6 falls and covers the inclined opening of the front nozzle assembly, the nozzle is in a closed state. like Figure 5 As shown, when the nozzle one-way baffle 6 returns to the side wall of the rear nozzle assembly 23, the nozzle is in the open state.

[0029] like Figure 1-5 As shown, the assembly of this utility model includes the following steps: Step 1: Install the nozzle one-way baffle 6. Use two sets of nozzle one-way baffle fixing brackets 7 to fix the nozzle one-way baffle 6 to the opening above the rear nozzle. Fix it by using four sets of nozzle one-way baffle fixing bolts 8, nozzle one-way baffle fixing washers 9, and nozzle one-way baffle fixing spring washers 10. Step 2: Installation of push-pull rod 13. Connect the end of push-pull rod 13 with the hole to the piston rod head of cylinder 14 through push-pull rod to cylinder connecting pin 11 and push-pull rod to cylinder connecting opening pin 12. Fix the other end of push-pull rod 13 through push-pull rod fixing bracket 19. Fix and lock it in place using push-pull rod fixing bolt 20, push-pull rod fixing washer 21 and push-pull rod fixing spring washer 22. Step 3: Installation of cylinder 14. Use cylinder mounting bracket 18 to fix cylinder 14 above the rear nozzle, and use cylinder mounting bolts 15, cylinder mounting washers 16 and cylinder mounting spring washers 17 to fix it. Step 4: Install the rear nozzle assembly 23. Use the front and rear nozzle assembly fixing bolts 2 to connect the rear nozzle assembly 23 to the front nozzle assembly 1, and use the front and rear nozzle assembly fixing nuts 3, front and rear nozzle assembly fixing washers 4, and fixing spring washers 5 to fix it.

[0030] like Figure 1-5 As shown, the working principle of this utility model is as follows: The air cannon is installed at the flange of the rear nozzle assembly 23. At this time, the solenoid valve 24 is not supplied with compressed air, the piston rod (air rod) of the cylinder 14 is retracted, and the nozzle one-way baffle 6 is in the closed state. When the air cannon is ready to operate, the solenoid valve 24 is energized in advance. At this time, the control airflow passes through the flexible air tube 25 to the tail end of the cylinder 14, causing the piston rod (air rod) of the cylinder 14 to be pushed out, and the nozzle one-way baffle 6 to be opened. At this time, the device is in a ready-to-go state. Immediately afterwards, the air cannon operates. After the air cannon operates, the solenoid valve 24 is de-energized again, the cylinder is reset, and the nozzle is blocked again, waiting for the next working command.

[0031] When the installation space is limited and the air cannon body has to be installed upside down, the one-way nozzle sealing device of this utility model is used. The one-way baffle 6 of the nozzle prevents the material inside the hopper from flowing back into the air cannon. The one-way baffle 6 of the nozzle plays a particularly important sealing role, avoiding the problem of damage to the air cannon piston and dry bearing caused by the material flowing back through the nozzle.

[0032] This utility model's one-way nozzle sealing device for air cannons is widely applicable to situations where the air cannon nozzle is inverted and there is positive pressure gas in the hopper. This one-way nozzle sealing device for air cannons greatly improves the stability of air cannon operation, extends the service life of air cannons, and significantly expands the application range of air cannons.

[0033] This utility model's one-way nozzle sealing device for air cannons has a simple structure and is easy to install and maintain. It can be opened when the air cannon needs to be activated and closed when it is not in use, greatly increasing the convenience of on-site maintenance.

[0034] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A one-way nozzle sealing device for an air cannon, comprising a front nozzle assembly (1) and a rear nozzle assembly (23), characterized in that: The front nozzle assembly (1) includes a front nozzle, and the rear nozzle assembly (23) includes a rear nozzle. One end of the front nozzle extends into the rear nozzle, and the opening end of the front nozzle is an inclined surface. A nozzle one-way baffle (6) is provided on the top surface of the rear nozzle. The nozzle one-way baffle (6) is movably covered on the inclined surface of the front nozzle. A push-pull rod (13) is provided on the top surface of the nozzle one-way baffle (6). A cylinder (14) is provided on the outer wall of the top surface of the rear nozzle. The piston rod end of the cylinder (14) is connected to the nozzle one-way baffle (6). A solenoid valve (24) is also connected to the cylinder (14).

2. The air cannon one-way nozzle sealing device according to claim 1, characterized in that: Both the outer wall of the front nozzle and the end of the rear nozzle are provided with connecting flanges. The connecting flange on the outer wall of the front nozzle fits into the connecting flange at the end of the rear nozzle and is fixedly connected by the front and rear nozzle assembly connecting component.

3. The air cannon one-way nozzle sealing device according to claim 1, characterized in that: The top surface of the rear nozzle is provided with a nozzle one-way baffle opening for installing the nozzle one-way baffle (6), and a nozzle one-way baffle fixing bracket (7) is provided on the outer wall of the top of the rear nozzle.

4. The air cannon one-way nozzle sealing device according to claim 3, characterized in that: The nozzle one-way baffle fixing bracket (7) is fixed to the outer wall of the top of the rear nozzle through the nozzle one-way baffle connecting assembly. There are two nozzle one-way baffle fixing brackets (7).

5. The air cannon one-way nozzle sealing device according to claim 1, characterized in that: The head of the push-pull rod (13) and the end of the piston rod of the cylinder (14) are connected to the end of the one-way baffle (6) of the connecting nozzle through the push-pull rod and cylinder connecting pin (11) and the push-pull rod and cylinder connecting opening pin (12).

6. The air cannon one-way nozzle sealing device according to claim 1, characterized in that: One end of the push-pull rod (13) is inserted into a fixed push-pull rod fixing bracket (19) provided on the top surface of the nozzle one-way baffle (6), and the other end of the push-pull rod (13) is inserted into a movable push-pull rod fixing bracket (19). The movable push-pull rod fixing bracket (19) is fixed to the top surface of the nozzle one-way baffle (6) by the push-pull rod fixing assembly.

7. The air cannon one-way nozzle sealing device according to claim 1, characterized in that: The cylinder (14) is placed on the outer wall of the top of the rear nozzle, and the cylinder fixing bracket (18) is fastened to the outside of the cylinder (14). The end of the cylinder fixing bracket (18) is fixed to the outer wall of the top of the rear nozzle by the cylinder fixing assembly.

8. The air cannon one-way nozzle sealing device according to claim 1, characterized in that: The cylinder (14) and the solenoid valve (24) are connected by a flexible air tube (25).

9. The air cannon one-way nozzle sealing device according to claim 1, characterized in that: The front nozzle is provided with a flange at the end furthest from the rear nozzle, and the rear nozzle is also provided with a flange at the end furthest from the front nozzle.

10. The air cannon one-way nozzle sealing device according to claim 1, characterized in that: The air cannon's one-way nozzle sealing device is a pure metal structure.

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