Air cannon device for preventing clogging of a preheater
Patent Information
- Application Number
- CN202521774755.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-20
- Publication Date
- 2026-09-04
- Estimated Expiration
- 2035-08-20
AI Technical Summary
[0003]常见的空气炮装置使用时，空气炮通常由控制系统按固定的顺序和固定的时间进行周期性工作，预热器内不论是否发生堵料，空气炮定时进行疏通，容易造成压缩空气的浪费，并且由于预热器内堵料位置发生变化，空气炮在使用时按照固定角度进行喷射，因为堵料位置的不同，造成压缩空气疏通不完全，需要进行多次作业，造成压缩空气的浪费
本实用新型利用转动杆、固定管、第一锥齿轮、第二锥齿轮、活动块、通风口和排风口相配合的设置方式，通过转动杆的转动，带动第二锥齿轮转动，利用第二锥齿轮和第一锥齿轮的啮合作用，带动第二锥齿轮和固定环一起转动，使得活动块在固定管内转动，活动块上通风口与固定管上其中一个排气口对齐，喷嘴中的气体进入到通风口，由其中一个排气口喷射到料仓内，对气体喷射角度进行调整，便于根据料仓不同堵塞位置进行疏通，提高适用性，减少压缩空气的浪费。
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Figure CN224719220U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of air cannons, and in particular to an air cannon device for preventing blockage in preheaters. Background Technology
[0002] An air cannon, also known as an air arch breaker or blockage clearer, is a device that uses the instantaneous release of compressed air to generate impact force and clear material blockages. It is widely used in equipment such as silos, chutes, and pipelines in industries such as mining, cement, chemicals, and grain storage.
[0003] When using common air cannon devices, the air cannon is usually operated periodically by the control system in a fixed sequence and at fixed times. Regardless of whether there is a blockage in the preheater, the air cannon is cleared periodically, which can easily lead to the waste of compressed air. Furthermore, because the location of the blockage in the preheater changes, the air cannon sprays at a fixed angle during use. Due to the different locations of the blockage, the clearance of compressed air is not complete, requiring multiple operations and resulting in the waste of compressed air. Utility Model Content
[0004] The purpose of this invention is to provide an air cannon device for preventing blockage in preheaters, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an air cannon device for preventing preheater blockage, comprising: gas tank; The nozzle is fixedly installed on the back of the gas storage tank; An adjustment structure is fixedly installed at one end of the nozzle, and the adjustment structure is used to adjust the airflow direction at the nozzle outlet; A jetting structure is disposed on a gas storage tank and is used to eject compressed gas.
[0006] Preferably, the adjustment structure includes: A fixing tube is fixedly installed at one end of the nozzle; The exhaust port is fixedly connected to the fixed pipe. The exhaust ports are arranged in a ring array at equal intervals and are connected to the inner cavity of the fixed pipe. A movable block, which is rotatably disposed inside a fixed tube, and the movable block is cylindrical in shape. A ventilation opening is provided on the movable block. The ventilation opening is V-shaped and its position corresponds to that of the exhaust port.
[0007] Preferably, the adjustment structure further includes: A fixed rod, one end of which is fixedly connected to one end of the movable block; A fixing ring, the outer wall of which is fixedly connected to the other end of a fixing rod, is disposed inside the nozzle; Connecting rods, which are fixedly connected to the inner wall of a fixed ring in a circular array; The outer wall of the first bevel gear shaft is fixedly connected to one end of the connecting rod; The second bevel gear meshes with the first bevel gear. A rotating rod is rotatably connected to the top of the nozzle, and the bottom of the rotating rod is fixedly connected to the second bevel gear.
[0008] Preferably, the adjustment structure further includes: The mounting tube is fixedly connected to the top of the nozzle, and the mounting tube and the rotating rod are slidably interlocked. A fixing block, which is fixedly connected to the top end of the mounting tube; Positioning holes are formed on the upper surface of the fixing block and are arranged in a circular array at equal intervals. A positioning bolt is threaded to the top of the rotating rod, and the bottom of the positioning bolt is slidably inserted into one of the positioning holes.
[0009] Preferably, the jet structure includes: A release valve, which is fixedly installed on the front of the gas storage tank; A control cabinet is located outside the gas storage tank and is electrically connected to the release valve. A negative pressure sensor is fixedly installed at one end of a fixed pipe and is electrically connected to the control cabinet.
[0010] Preferably, a rubber pad is fixedly connected to the outer wall of the movable block, a limit ring is fixedly connected to the inner wall of the fixed tube, the limit block is in contact with one end of the movable block, two limit blocks are fixedly connected to the rotating rod, the limit blocks are respectively disposed at both ends of the mounting tube, a sealing gasket is fixedly connected to the limit block, and a sealing ring is provided between the nozzle and the fixed tube.
[0011] The technical effects and advantages of this utility model are as follows: This invention utilizes a combination of a rotating rod, a fixed tube, a first bevel gear, a second bevel gear, a movable block, a vent, and an exhaust port. The rotation of the rotating rod drives the second bevel gear to rotate. The meshing of the second and first bevel gears causes the second bevel gear and the fixed ring to rotate together, causing the movable block to rotate within the fixed tube. The vent on the movable block aligns with one of the exhaust ports on the fixed tube. Gas from the nozzle enters the vent and is then sprayed into the hopper through one of the exhaust ports. The gas spray angle can be adjusted to facilitate unblocking at different locations within the hopper, improving applicability and reducing compressed air waste. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0013] Figure 2 This is a schematic diagram of the structure of the fixed tube of this utility model.
[0014] Figure 3 This is a side sectional view of the fixed tube of this utility model.
[0015] Figure 4 This utility model Figure 3 A magnified structural diagram at point A.
[0016] In the diagram: 1. Gas tank; 2. Nozzle; 3. Adjustment structure; 31. Fixed pipe; 32. Exhaust port; 33. Movable block; 34. Ventilation port; 35. Fixed rod; 36. Fixed ring; 37. Connecting rod; 38. First bevel gear; 39. Second bevel gear; 310. Rotating rod; 311. Mounting pipe; 312. Fixed block; 313. Positioning hole; 314. Positioning bolt; 4. Air jet structure; 41. Release valve; 42. Control cabinet; 43. Negative pressure sensor. Detailed Implementation
[0017] 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.
[0018] This utility model provides, for example Figures 1-4An air cannon device for preventing blockage in a preheater, as shown, includes an air tank 1, a nozzle 2, an adjustment structure 3, and a jetting structure 4. The air tank 1 stores compressed air. The nozzle 2 is fixedly installed on the back of the air tank 1, with one end inserted into the preheater. Compressed gas is injected into the preheater through the nozzle 2 to clear blockages. The adjustment structure 3 is fixedly installed on one end of the nozzle 2 and is used to adjust the airflow direction at the nozzle 2 outlet, facilitating the adjustment of the compressed air injection angle. The jetting structure 4 is installed on the air tank 1 and is used to eject compressed gas and adjust the operation of the air cannon device according to the blockage situation in the preheater.
[0019] Specifically, the adjusting structure 3 includes a fixed pipe 31, an exhaust port 32, a movable block 33, a vent 34, a fixed rod 35, a fixed ring 36, a connecting rod 37, a first bevel gear 38, a second bevel gear 39, a rotating rod 310, a mounting pipe 311, a fixed block 312, a positioning hole 313, and a positioning bolt 314. The fixed pipe 31 is fixedly installed at one end of the nozzle 2, and one end of the fixed pipe 31 is closed for mounting the movable block 33. The exhaust port 32 is fixedly connected to the fixed pipe 31 and is arranged in a circular array at equal intervals, with adjacent exhaust ports 32 spaced at 90-degree intervals. The exhaust port 32 is connected to the inner cavity of the fixed pipe 31, and the gas in the fixed pipe 31 exits through one of the exhaust ports. 32 is sprayed obliquely; a movable block 33 is rotatably disposed inside the fixed tube 31. The movable block 33 is cylindrical and rotates within the inner cavity of the fixed tube 31 to seal off other exhaust ports 32; a vent 34 is disposed on the movable block 33 and is V-shaped. The vent 34 corresponds to the position of the exhaust port 32 and is aligned with one of the exhaust ports 32. Gas enters the vent 34 and exits through one of the exhaust ports 32; one end of the fixed rod 35 is fixedly connected to one end of the movable block 33 and is used to drive the movable block 33 to rotate; the outer wall of the fixed ring 36 is fixedly connected to the other end of the fixed rod 35 and is disposed on the nozzle. Inside nozzle 2, a retaining ring 36 is used to mount the first bevel gear 38; connecting rods 37 are fixedly connected in a ring array to the inner wall of the retaining ring 36, and the connecting rods 37 are used to fix the first bevel gear 38 and the retaining ring 36; the outer wall of the shaft of the first bevel gear 38 is fixedly connected to one end of the connecting rod 37, and the second bevel gear 39 meshes with the first bevel gear 38. The first bevel gear 38 and the second bevel gear 39 are arranged inside nozzle 2. By fixing the retaining tube 31 to one end of nozzle 2, the first bevel gear 38 is inserted into nozzle 2, so that the first bevel gear 38 and the second bevel gear 39 mesh with each other. The meshing action of the first bevel gear 38 and the second bevel gear 39 causes them to rotate together. The rotating rod 310 is rotatably connected to the top of the nozzle 2, and the bottom of the rotating rod 310 is fixedly connected to the second bevel gear 39. The rotating rod 310 drives the second bevel gear 39 to rotate, which in turn drives the first bevel gear 38 and the movable block 33 to rotate together. The mounting tube 311 is fixedly connected to the top of the nozzle 2. The mounting tube 311 and the rotating rod 310 are slidably interlocked. The mounting tube 311 is used to install the rotating rod 310. The fixing block 312 is fixedly connected to the top of the mounting tube 311. The positioning holes 313 are opened on the upper surface of the fixing block 312. The positioning holes 313 are arranged in a ring array at equal intervals. The adjacent positioning holes 313 are spaced 90 degrees apart. The positioning holes 313 are used to install the positioning bolts 314.The positioning bolt 314 is threadedly connected to the top of the rotating rod 310. The bottom of the positioning bolt 314 is slidably inserted into one of the positioning holes 313. The positioning bolt 314 rotates together with the rotating rod 310. By rotating the positioning bolt 314, its bottom moves downward into one of the positioning holes 313, limiting and fixing the rotating rod 310, preventing the movable block 33 from rotating. This ensures the stable alignment of the vent 34 and the exhaust port 32. By rotating the movable block 33, the vent 34 on the movable block 33 connects with different exhaust ports 32, thereby adjusting the angle of the gas ejection.
[0020] Furthermore, the jet structure 4 includes a release valve 41, a control cabinet 42, and a negative pressure sensor 43. The release valve 41 is fixedly installed on the front of the air storage tank 1 and is used to control the instantaneous release of compressed air. The control cabinet 42 is located outside the air storage tank 1 and is electrically connected to the release valve 41. The control cabinet 42 controls the opening and closing of the release valve 41 through a PLC control module and receives signals from the negative pressure sensor 43. The negative pressure sensor 43 is fixedly installed at one end of the fixed pipe 31 and is electrically connected to the control cabinet 42. The negative pressure sensor 43 detects air pressure... The pressure difference of the body or liquid works, usually with atmospheric pressure as the reference. It measures pressure values lower than atmospheric pressure. The negative pressure sensor 43 moves together with the nozzle 2 and the fixed pipe 31 and is set inside the preheater. The negative pressure sensor 43 detects the air pressure in the preheater. When the air pressure in the preheater is much lower than atmospheric pressure, it is determined that the raw material in the preheater is blocked. The negative pressure sensor 43 transmits the signal to the control cabinet 42. The control cabinet 42 controls the release valve 41 to open, so that compressed air is injected into the preheater to clear the blockage in the preheater, realize the directional clearing of the blockage, and avoid the waste of compressed air.
[0021] A rubber pad is fixedly connected to the outer wall of the movable block 33. The rubber pad is placed between the movable block 33 and the inner wall of the fixed tube 31. The elasticity of the rubber pad ensures the sealing between the movable block 33 and the inner wall of the fixed tube 31. A limit ring is fixedly connected to the inner wall of the fixed tube 31. The limit block is in contact with one end of the movable block 33. The limit ring is used to limit the movable block 33 and ensure that the movable block 33 rotates stably in the fixed tube 31. Two limit blocks are fixedly connected to the rotating rod 310. The limit blocks are respectively set at both ends of the mounting tube 311. Sealing gaskets are fixedly connected to the limit blocks to ensure the sealing at both ends of the mounting tube 311. A sealing ring is provided between the nozzle 2 and the fixed tube 31 to ensure a sealed connection between the nozzle 2 and one end of the fixed tube 31.
[0022] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An air cannon device for preventing blockage in a preheater, characterized in that, include: Gas storage tank (1); Nozzle (2), which is fixedly installed on the back of the gas storage tank (1); Adjustment structure (3), which is fixedly installed at one end of nozzle (2), is used to adjust the airflow direction at the air outlet of nozzle (2); A jet structure (4) is disposed on a gas storage tank (1) and is used to eject compressed gas.
2. The air cannon device for preventing blockage in a preheater according to claim 1, characterized in that, The adjustment structure (3) includes: A fixing tube (31) is fixedly installed at one end of the nozzle (2); The exhaust port (32) is fixedly connected to the fixed pipe (31). The exhaust ports (32) are arranged in a ring array at equal intervals. The exhaust ports (32) are connected to the inner cavity of the fixed pipe (31). Movable block (33), which is rotatably disposed inside fixed tube (31), and is cylindrical in shape; Ventilation opening (34) is provided on the movable block (33). The ventilation opening (34) is V-shaped and corresponds to the position of the exhaust port (32).
3. The air cannon device for preventing blockage in a preheater according to claim 2, characterized in that, The adjustment structure (3) also includes: A fixed rod (35), one end of which is fixedly connected to one end of a movable block (33); A fixing ring (36) is fixedly connected to the other end of a fixing rod (35) on its outer wall and is disposed inside the nozzle (2). Connecting rods (37) are fixedly connected to the inner wall of the fixing ring (36) in a ring array; The outer wall of the first bevel gear (38) shaft is fixedly connected to one end of the connecting rod (37); The second bevel gear (39) meshes with the first bevel gear (38); Rotating rod (310), which is rotatably connected to the top of nozzle (2), and the bottom of rotating rod (310) is fixedly connected to second bevel gear (39).
4. The air cannon device for preventing blockage in a preheater according to claim 3, characterized in that, The adjustment structure (3) also includes: The mounting tube (311) is fixedly connected to the top of the nozzle (2), and the mounting tube (311) and the rotating rod (310) are slidably interlocked. A fixing block (312) is fixedly connected to the top end of the mounting tube (311); Positioning holes (313) are formed on the upper surface of the fixing block (312), and the positioning holes (313) are arranged in a ring array at equal intervals. A positioning bolt (314) is threaded to the top of a rotating rod (310), and the bottom of the positioning bolt (314) is slidably inserted into one of the positioning holes (313).
5. The air cannon device for preventing blockage in a preheater according to claim 4, characterized in that, The jet structure (4) includes: Release valve (41), which is fixedly installed on the front of the gas storage tank (1); Control cabinet (42), the control cabinet (42) is located outside the gas storage tank (1), and the control cabinet (42) is electrically connected to the release valve (41); A negative pressure sensor (43) is fixedly installed at one end of a fixed tube (31) and is electrically connected to a control cabinet (42).
6. The air cannon device for preventing blockage in a preheater according to claim 5, characterized in that, A rubber pad is fixedly connected to the outer wall of the movable block (33), a limiting ring is fixedly connected to the inner wall of the fixed tube (31), the limiting ring is in contact with one end of the movable block (33), two limiting blocks are fixedly connected to the rotating rod (310), the limiting blocks are respectively set at both ends of the mounting tube (311), a sealing gasket is fixedly connected to the limiting block, and a sealing ring is provided between the nozzle (2) and the fixed tube (31).