A striking device driven by hot gas from a rotary kiln

Abstract

This invention discloses a striking device driven by hot gas from a rotary kiln, comprising a striking device and a support frame. The striking device includes a power unit and a striking assembly. The power unit includes a base, a connecting seat, and a cover plate. An air inlet chamber is formed between the cover plate and the connecting seat. The connecting seat has a first air passage and a second air passage respectively connected to the air inlet chamber. An air outlet passage is formed between the first and second air passages. A piston is equipped with a driving rod. A slider is slidably mounted in the air inlet chamber. An air outlet chamber is formed between the slider and the connecting seat. A guide rod is provided on the side of the slider. A transmission component is hinged to the support frame and is hinged to the guide rod. A control block is provided on the driving rod. The driving rod drives the striking assembly to reciprocate and strike the rotary kiln wall. This invention can utilize the high-temperature hot gas generated by the rotary kiln to descale the inner wall of the rotary kiln, achieving heat recycling, energy saving, and environmental protection.

Description

Technical Field

[0001] This invention relates to the field of rotary kiln equipment technology, and more specifically to a striking device driven by hot gas from a rotary kiln. Background Technology

[0002] A rotary kiln is a type of kiln used for calcining cement (commonly known as a rotary kiln), belonging to the category of building materials equipment. Rotary kilns can be classified according to the materials they process: cement kilns, metallurgical and chemical kilns, and lime kilns. Cement kilns are mainly used for calcining cement clinker; metallurgical and chemical kilns are mainly used in the metallurgical industry for the magnetization roasting of lean iron ore in steel plants; and lime kilns (i.e., active lime kilns) are used for roasting active lime and lightly calcined dolomite for steel plants and ferroalloy plants.

[0003] When a rotary kiln is calcining, a large amount of material often adheres to the inner wall of the rotary drum when calcining viscous substances such as cement. Over time, this not only affects the calcination process of the rotary kiln but also hinders the mass and heat transfer of the rotary drum, affecting its normal use. Summary of the Invention

[0004] The purpose of this invention is to provide a striking device driven by hot air from a rotary kiln, which solves the problem of a large amount of material adhering to the inner wall of the rotary kiln and affecting its normal use. It can use the high-temperature hot air generated by the rotary kiln to remove scale from the inner wall of the rotary kiln, realize the recycling of heat, and save energy and protect the environment.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following solution:

[0006] A striking device driven by hot gas from a rotary kiln includes a striking device and a support frame installed on the side wall of the rotary kiln. The striking device includes a power unit and striking components. The power unit includes a base, a connecting seat, and a cover plate. The base is fixed to the support frame and has a cavity inside. A suitable piston is slidably connected in the cavity. The connecting seat is fixed between the base and the cover plate, forming an air inlet chamber. The cover plate is provided with an air inlet pipe for introducing hot gas from the rotary kiln into the air inlet chamber. The connecting seat has a first flow passage and a second flow passage respectively connected to the air inlet chamber. An air outlet passage is provided between the first flow passage and the second flow passage. The first air passage is connected to the first cavity on one side of the piston, and the second air passage is connected to the second cavity on the other side of the piston. A drive rod extending to the outside of the base is connected to one side of the piston. A slider is slidably provided in the air inlet cavity. An air outlet cavity is formed between the slider and the connecting seat. A guide rod extending to the outside of the cover plate is connected to the side of the slider. A transmission component is also hinged on the support frame. The transmission component is hinged to the guide rod. A control block is provided on the drive rod to control the transmission component to drive the guide rod to move laterally and to control the hot air to alternately enter the first air passage, the second air passage, and the exhaust through the slider. The drive rod drives the striking assembly to reciprocate and strike the rotary kiln wall.

[0007] Due to the adoption of the above technical solution, a support frame is welded to the outer wall of the rotary kiln, and a power unit is fixed on the support frame. A striking component is provided on the side of the support frame. During operation, the rotary kiln generates a large amount of high-temperature hot gas, containing waste gas, water vapor, and other substances. To improve the recycling of the high-temperature hot gas, it is introduced into the drive unit through the inlet pipe as its power source. In practice, a booster pump can be installed at the front end of the inlet pipe to increase the pressure of the high-temperature hot gas. After entering the inlet chamber, the high-temperature hot gas initially enters the first cavity through the first flow passage. As the high-temperature hot gas increases, the internal pressure increases, pushing the piston towards the second cavity and compressing its volume. Simultaneously, the piston drives the drive rod to move and contact the striking component. At this time, the control block on the drive rod contacts the transmission component and continues to move with the drive rod. The guide rod moves laterally under the action of the transmission component and pushes the slider to slide, blocking the air passage between the inlet chamber and the first flow passage, connecting the first flow passage to the outlet. Simultaneously, the second flow passage connects to the inlet chamber, allowing the high-temperature hot gas to pass through... The second flow channel enters the second cavity. As the high-temperature hot gas in the second cavity gradually increases, the gas pressure rises. The high-temperature hot gas pushes the piston towards the first cavity, squeezing the gas after work from the first flow channel into the outlet cavity and then discharging it from the outlet channel. The piston also drives the drive rod to move in the opposite direction, resetting the impact component and impacting the outer wall of the rotary kiln. This causes the material adhering to the inner wall of the rotary kiln to fall off due to vibration. When the control block moves with the drive rod to contact the transmission component and continues to move laterally, the transmission component drives the guide rod in the opposite direction. The system moves, reconnecting the first air passage to the inlet chamber and the second air passage to the outlet chamber. High-temperature hot gas re-enters the first cavity, driving the piston to compress the gas in the second cavity after it has done work into the outlet chamber. This cycle repeats, achieving the purpose of the striking component repeatedly striking the outer wall of the rotary kiln, thereby removing scale and preventing the problem of a large amount of material adhering to the inner wall of the rotary kiln, which would affect normal operation. This solution effectively recycles the high-temperature hot gas generated by the rotary kiln and removes scale from the inner wall of the kiln, achieving heat recycling and saving energy and protecting the environment.

[0008] Furthermore, the transmission component includes a first push rod and a second push rod, which are hinged to the support frame. One end of each of the first and second push rods is hinged to a guide rod. A control block is located between the first and second push rods. When the piston drives the control block to contact the first push rod and causes the guide rod to move laterally, the first air passage connects to the first cavity and the air inlet cavity, and the second air passage connects to the air outlet cavity and the air outlet channel. When the piston drives the control block to contact the second push rod and causes the guide rod to move laterally, the first air passage connects to the air outlet cavity and the air outlet channel, and the second air passage connects to the second cavity and the air inlet cavity.

[0009] Furthermore, the control block is square in shape and is fixed to the drive rod. The control block is provided with protrusions for the first push rod and the second push rod, which are easy to contact. There is an overlap between the protrusions and the two push rods.

[0010] Furthermore, the striking assembly includes a striking hammer and a connecting rod. The striking hammer is vertically fixed to one end of the connecting rod, and the other end of the connecting rod is rotatably connected to the side wall of the rotary kiln. Taking the rotatable connection point as the dividing point, the center of gravity of the connecting rod is located on the side with the striking hammer, and the height of the left end of the connecting rod is less than that of the right end.

[0011] Furthermore, the weight of the connecting rod on the left side of the dividing point is 5-10 times that on the right side.

[0012] Furthermore, two mounting seats are welded to the side wall of the rotary kiln, and the connecting rod is provided with rotating shafts on both sides for rotating connection with the mounting seats.

[0013] Furthermore, the top surface of the connecting rod is provided with an assembly groove located to the right of the dividing point, and the size of the assembly groove is larger than the size of the driving rod.

[0014] Furthermore, the inner wall of the assembly groove is fixed with a rubber layer or a polyurethane layer.

[0015] Furthermore, the air inlet pipe is equipped with a flow valve, the air outlet channel is connected to an external air outlet pipe, and a purification box is provided at the end of the air outlet pipe, with activated carbon plates distributed at intervals inside the purification box.

[0016] Furthermore, a sealing ring is provided between the drive rod and the side wall of the base, and a sealing ring is provided between the guide rod and the side wall of the cover plate.

[0017] The beneficial effects of this invention are as follows:

[0018] 1. In the initial state of this invention, after the high-temperature hot gas enters the intake chamber, it enters the first cavity through the first flow passage. As the amount of high-temperature hot gas increases, the internal pressure increases, pushing the piston towards the second cavity and compressing its volume. Simultaneously, the piston drives the drive rod to move and contact the striking component. At this time, the control block on the drive rod contacts the transmission component and continues to move with the drive rod. The guide rod moves laterally under the action of the transmission component and pushes the slider to slide, blocking the air passage between the intake chamber and the first flow passage, connecting the first flow passage to the outlet. Simultaneously, the second flow passage connects to the intake chamber, and the high-temperature hot gas enters the second cavity through the second flow passage. As the amount of high-temperature hot gas in the second cavity gradually increases, the air pressure increases, and the high-temperature hot gas pushes the piston towards the first cavity, compressing the gas after work from the first flow passage to the outlet. The air chamber is filled with gas, which is discharged from the outlet air passage. The piston drives the drive rod to move in the opposite direction, resetting the striking component and impacting the outer wall of the rotary kiln. This causes the material adhering to the inner wall of the rotary kiln to fall off due to vibration. When the control block moves with the drive rod to contact the transmission component and continues to move laterally, the transmission component drives the guide rod to move in the opposite direction, reconnecting the first air passage with the inlet chamber and the second air passage with the outlet chamber. High-temperature hot gas re-enters the first cavity, and the drive piston compresses the gas in the second cavity into the outlet chamber. This cycle repeats, achieving the purpose of the striking component repeatedly impacting the outer wall of the rotary kiln, thereby achieving the purpose of descaling and avoiding the problem of a large amount of material adhering to the inner wall of the rotary kiln, which affects normal use. This solution can effectively recycle the high-temperature hot gas generated by the rotary kiln and descale the inner wall of the rotary kiln, achieving heat recycling, energy saving and environmental protection. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of the hammer in this invention when it is preparing to strike the outer wall of the rotary kiln.

[0021] Figure 3 A top view of the striking component;

[0022] Figure 4 This is a structural diagram of the extended drive rod;

[0023] Figure 5 This is a structural diagram of the drive rod after it retracts.

[0024] Reference numerals: 1-Rotary kiln, 2-Support frame, 3-Control block, 4-Power unit, 5-Connecting rod, 6-Impact hammer, 7-Mounting seat, 8-Transmission component, 9-Rotating shaft, 10-Assembly groove, 11-Inlet pipe, 12-Outlet chamber, 13-Outlet pipe, 14-Activated carbon plate, 15-Purification box, 16-Inlet chamber, 17-Cover plate, 18-Second air passage, 19-First push rod, 20-Guide rod, 21-Second push rod, 22-Protruding rod, 23-Drive rod, 24-Second cavity, 25-Piston, 26-Outlet air passage, 27-Connecting seat, 28-First cavity, 29-Base, 30-First air passage, 31-Flow valve, 32-Slider. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to the embodiments and accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0026] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "longitudinal," "lateral," "horizontal," "inner," "outer," "front," "rear," "top," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0027] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "have," "install," "connect," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0028] Example

[0029] A striking device driven by hot gas from a rotary kiln includes a striking device and a support frame 2 installed on the side wall of a rotary kiln 1. The striking device includes a power unit 4 and striking components. The power unit 4 includes a base 29, a connecting seat 27, and a cover plate 17. The base 29 is fixed to the support frame 2 and has a cavity inside. A suitable piston 25 is slidably connected inside the cavity. The connecting seat 27 is fixed between the cover plate 17 and the connecting seat 27, forming an air inlet chamber 16. The cover plate 17 is provided with an air inlet pipe 11 for introducing hot gas from the rotary kiln 1 into the air inlet chamber 16. The connecting seat 27 is provided with a first air passage 30 and a second air passage 18 respectively connected to the air inlet chamber 16. An air outlet passage 26 is provided between the first air passage 30 and the second air passage 18. The air passage 30 is connected to the first cavity 28 on one side of the piston 25, and the second air passage 18 is connected to the second cavity 24 on the other side of the piston 25. A drive rod 23 extending to the outside of the base 29 is connected to one side of the piston 25. A slider 32 is slidably provided in the air inlet cavity 16. An air outlet cavity 12 is formed between the slider 32 and the connecting seat 27. A guide rod 20 extending to the outside of the cover plate 17 is connected to the side of the slider 32. A transmission component 8 is also hinged on the support frame 2. The transmission component 8 is hinged to the guide rod 20. A control block 3 is provided on the drive rod 23 to control the transmission component 8 to drive the guide rod 20 to move laterally and to control the hot air to alternately enter the first air passage 30, the second air passage 18 and the exhaust through the slider 32. The drive rod 23 drives the striking component to reciprocate and strike the wall of the rotary kiln 1.

[0030] In this embodiment, as Figure 1-2As shown, a support frame 2 is welded to the outer wall of the rotary kiln 1. Multiple support frames 2 can be provided, arranged in a ring-like pattern on the circumferential sidewall of the rotary kiln 1. A power unit 4 is fixed to the support frame 2, and a striking component is provided on the side of the support frame 2. This ring-like distribution of the striking component and power unit 4 improves the uniformity of the striking on the outer wall of the rotary kiln 1. In this design, the striking component utilizes gravity to achieve maximum impact on the sidewall of the rotary kiln 1. The connections between the base 29, connecting seat 27, and cover plate 17 in the power unit 4 are sequentially sealed to prevent air leakage. The size of the piston 25 is matched to the size of the cavity, and the outer wall of the piston 25 is sealed to the inner wall of the cavity. However, under the pressure of high-temperature hot gas, the piston 25 can move along the cavity... As the rotary kiln 1 moves along its length, it generates a large amount of high-temperature hot gas during operation. The kiln contains waste gas, water vapor, and other substances. To improve the recycling of this high-temperature hot gas, it is introduced into the drive unit through the inlet pipe 11 as its power source. In practice, a booster pump can be installed at the front end of the inlet pipe 11 to increase the pressure of the high-temperature hot gas. After entering the inlet chamber 16, the high-temperature hot gas initially enters the first cavity 28 through the first flow passage 30. As the amount of hot gas increases, the internal pressure increases, pushing the piston 25 towards the second cavity 24 and compressing its volume. Simultaneously, the piston 25 drives the drive rod 23 to move and contact the impact component. At this time, the control block 3 on the drive rod 23 contacts the transmission component 8 and continues... As the drive rod 23 moves, the guide rod 20 moves laterally under the action of the transmission component 8 and pushes the slider 32 to slide, blocking the air passage between the inlet chamber 16 and the first through-flow channel 30, connecting the first through-flow channel 30 to the outlet. At the same time, the second through-flow channel 18 connects to the inlet chamber 16, and the high-temperature hot gas enters the second cavity 24 through the second through-flow channel 18. As the amount of high-temperature hot gas in the second cavity 24 gradually increases, the air pressure increases, and the high-temperature hot gas pushes the piston 25 to move towards the first cavity 28, squeezing the gas after work from the first through-flow channel 30 into the outlet chamber 12 and discharging it from the outlet channel 26. The piston 25 also drives the drive rod 23 to move in the opposite direction, resetting the impact component and impacting the outer wall of the rotary kiln 1, thereby causing the gas stuck to the rotary kiln to be removed. Material on the inner wall falls off due to vibration. When the control block 3 moves with the drive rod 23 to contact the transmission component 8 and continues to move laterally, the transmission component 8 drives the guide rod 20 to move in the opposite direction, connecting the first air passage 30 with the inlet chamber 16 and the second air passage 18 with the outlet chamber 12. High-temperature hot gas re-enters the first cavity 28, and the drive piston 25 compresses the gas that has done work in the second cavity 24 into the outlet chamber 12. This cycle repeats, achieving the purpose of the impact component reciprocating to impact the outer wall of the rotary kiln 1, thereby achieving the purpose of descaling and avoiding the problem of a large amount of material adhering to the inner wall of the rotary kiln 1, which affects normal use. This solution can effectively recycle the high-temperature hot gas generated by the rotary kiln 1 and descal the inner wall of the rotary kiln 1, realizing the recycling of heat.Energy-saving and environmentally friendly.

[0031] Preferably, the transmission component 8 includes a first push rod 19 and a second push rod 21. The first push rod 19 and the second push rod 21 are hinged to the support frame 2. One end of the first push rod 19 and the second push rod 21 are both hinged to the guide rod 20. The control block 3 is located between the first push rod 19 and the second push rod 21. When the piston 25 drives the control block 3 to contact the first push rod 19 and drives the guide rod 20 to move laterally, the first air passage 30 connects to the first cavity 28 and the air inlet cavity 16, and the second air passage 18 connects to the air outlet cavity 12 and the air outlet passage 26. When the piston 25 drives the control block 3 to contact the second push rod 21 and drives the guide rod 20 to move laterally, the first air passage 30 connects to the air outlet cavity 12 and the air outlet passage 26, and the second air passage 18 connects to the second cavity 24 and the air inlet cavity 16.

[0032] The specific working principle of the transmission component 8 and the control block 3: When high-temperature hot air enters the first cavity 28, the piston 25 moves to the right, and the control block 3 also moves until it contacts the second push rod 21, and continues to move to the right, causing the second push rod 21 to rotate counterclockwise by a certain angle. At this time, the piston 25 moves to the right to its maximum displacement. Since the second push rod 21 is hinged to the guide rod 20, the counterclockwise rotation of the second push rod 21 will drive the guide rod 20 to move to the left, and at the same time drive the first push rod 19 to rotate counterclockwise, causing the slider 32 to move to the left. Figure 4 As shown, the first air passage 30 is connected to the outlet chamber 12, while the second air passage 18 is connected to the inlet chamber 16. High-temperature hot air enters the second cavity 24, pushing the piston 25 to the left. The piston 25 compresses the gas in the first cavity 28 into the outlet chamber 12 and discharges it through the outlet passage 26 until the control block 3 contacts the first push rod 19 and continues to move to the left. The control block 3 drives the first push rod 19 to rotate clockwise by a certain angle. At this point, the piston 25 moves to the left to its maximum displacement, and the first push rod 19 rotates counterclockwise, causing the guide rod 20 to move to the right, thereby moving the slider 32 to the right. Figure 5 As shown, the first air passage 30 is reconnected to the intake chamber 16, and the exhaust chamber 12 is connected to the second air passage 18, and so on.

[0033] Preferably, the control block 3 is square-shaped and fixed to the drive rod 23. The control block 3 is provided with a protruding rod 22 for easy contact with the first push rod 19 and the second push rod 21, with an overlapping portion between the protruding rod 22 and the two push rods. Specifically, the control block 3 is welded to the outer wall of the drive rod 23, and the top surface of the control block 3 is fixed with the protruding rod 22. The protruding rod 22 facilitates better contact between the control block 3 and the first push rod 19 and the second push rod 21 during the lateral movement of the control block 3, and drives the two push rods to rotate, thereby driving the guide rod 20 to move laterally, and then driving the slider 32 to realize the alternating connection between the first air passage 30 and the second air passage 18 and the air inlet chamber 16 and the air outlet chamber 12, automatically realizing the function of air intake and exhaust.

[0034] Preferably, the striking assembly includes a striking hammer 6 and a connecting rod 5. The striking hammer 6 is vertically fixed to one end of the connecting rod 5, and the other end of the connecting rod 5 is rotatably connected to the side wall of the rotary kiln 1. With the rotatable connection point as the dividing point 33, the center of gravity of the connecting rod 5 is located on the side with the striking hammer 6, and the height of the left end of the connecting rod 5 is less than that of the right end.

[0035] Preferably, the weight of the connecting rod 5 on the left side of the dividing point 33 is 5-10 times that on the right side. Specifically, since the reciprocating impact of the hammer 6 is achieved by its own weight, when the drive rod 23 retracts, it can ensure that the hammer 6 can quickly fall back to strike the surface of the rotary kiln 1. The greater the weight on the left side of the connecting rod 5, the greater the striking force and the better the descaling effect.

[0036] Preferably, two mounting seats 7 are welded on the side wall of the rotary kiln 1, and the connecting rod 5 is provided with rotating shafts 9 on both sides for rotating connection with the mounting seats 7.

[0037] Preferably, the top surface of the connecting rod 5 is provided with an assembly groove 10 located to the right of the dividing point 33, and the size of the assembly groove 10 is larger than the size of the driving rod 23. Specifically, as shown... Figure 3 As shown, in order to avoid slippage during the process of the drive rod 23 pressing down on the connecting rod 5, a downwardly recessed mounting groove 10 is opened on the top surface of the connecting rod 5. The size of the mounting groove 10 is larger than the size of the lower end of the drive rod 23, providing operable space for the relative displacement between the drive rod 23 and the connecting rod 5. The drive rod 23 moves into the mounting groove 10 under the drive of the piston 25 and is pressed down, causing the striking hammer 6 to move upward. In this way, it is not easy for the drive rod 23 to slip with the connecting rod 5.

[0038] Preferably, the inner wall of the assembly groove 10 is fixed with a rubber layer or a polyurethane layer. Specifically, the polyurethane layer and the rubber layer can provide a certain buffering effect on the falling of the drive rod 23. During the process of the drive rod 23 pressing against the connecting rod 5, the connecting rod 5 changes from an inclined state to a horizontal state and then from a horizontal state to an inclined state, while the drive rod 23 remains in a vertical state. The polyurethane layer and the rubber layer can adapt the drive rod 23 to the changes in the position of the connecting rod 5 through their own deformation.

[0039] Preferably, the air inlet pipe 11 is equipped with a flow valve 31, the air outlet channel 26 is connected to the external air outlet pipe 13, and a purification box 15 is provided at the end of the air outlet pipe 13. Activated carbon plates 14 are distributed at intervals inside the purification box 15. The flow valve 31 can adjust the air inlet flow rate, thereby adjusting the moving speed of the piston 25, and thus adjusting the extension and retraction frequency of the drive rod 23, thereby adjusting the frequency at which the striking component strikes the outer wall of the rotary kiln 1, in order to change the descaling efficiency. The higher the striking frequency of the striking component, the easier it is for the material adhering inside the rotary kiln 1 to fall off. Existing chemical products for desulfurization can also be installed inside the purification box 15, which can ensure that the exhaust gas meets the emission standards and is beneficial to environmental protection.

[0040] Preferably, a sealing ring is provided between the drive rod 23 and the side wall of the base 29, and a sealing ring is provided between the guide rod 20 and the side wall of the cover plate 17. The sealing rings can improve the sealing performance and prevent air leakage.

[0041] The working principle of this invention: In the initial state, taking the connection between the first air passage 30 and the air inlet chamber 16 as an example, the second air passage 18 is connected to the air outlet chamber 12. High-temperature hot air enters the air inlet chamber 16 through the air inlet pipe 11 and enters the first cavity 28 through the first air passage 30. As the amount of high-temperature hot air in the first cavity 28 gradually increases, the internal air pressure increases, which pushes the piston 25 to move towards the second cavity 24. The drive rod 23 also moves with the piston 25. The end of the drive rod 23 moves into the mounting groove 10 of the connecting rod 5 and presses the connecting rod 5 down, causing the height of the striking hammer 6 to rise until the connecting rod 5 contacts the outer wall of the rotary kiln 1. The control block 3 on the drive rod 23 also moves with the drive rod 23. The protrusion 22 on the control block 3 contacts the second push rod 21 and drives the second push rod 21 to rotate counterclockwise by a certain angle. The rotation of the needle drives the guide rod 20 to move towards the second cavity 24. At the same time, the first push rod 19 also rotates counterclockwise. This means that the lateral movement of the guide rod 20 will drive the synchronous rotation between the two push rods. The guide rod 20 drives the slider 32 to move towards the first cavity 28 until the first air passage 30 is connected to the outlet cavity 12 and the second air passage 18 is connected to the inlet cavity 16. The high-temperature hot air enters the second cavity 24 through the inlet cavity 16 and the second air passage 18. The internal air pressure pushes the piston 25 towards the first cavity 28, thereby driving the drive rod 23 to release the pressure on the connecting rod 5. Since the weight of the side with the hammer 6 on the connecting rod 5 is much greater than the weight of the other side, under the action of the hammer 6's own gravity, the hammer 6 falls quickly and collides with the surface of the rotary kiln 1, achieving the striking effect and causing the material adhering to the inner wall of the rotary kiln 1 to fall off.When the convex rod 22 moves with the control block 3 to contact the first push rod 19, the piston 25 continues to move towards the first cavity 28, causing the convex rod 22 to drive the first push rod 19 to rotate clockwise by a certain angle. At this time, the displacement of the piston 25 towards the first cavity 28 reaches its maximum, and the displacement of the drive rod 23 retraction also reaches its maximum. The gas that has done work in the first cavity 28 is basically discharged. The discharged gas can be discharged after being purified by the purification box 15 at the tail of the exhaust pipe 13. The clockwise rotation of the first push rod 19 will drive the guide rod 20 to move towards the first cavity 28 again, and cause the slider 32 to also move towards the second cavity 24, so that the first air passage 30 is connected to the intake cavity 16, and the second air passage... 18 connects to the outlet chamber 12, allowing high-temperature hot air to enter the first cavity 28 and push the piston 25 towards the second cavity 24. This forces the gas in the second cavity 24, after work, out through the outlet passage 26, causing the drive rod 23 to press against the connecting rod 5 again, moving the striking hammer 6 upward a certain distance. This alternating entry of high-temperature hot air into the first cavity 28 and the second cavity 24 allows the striking hammer 6 to move up and down repeatedly, reciprocating the impact on the rotary kiln 1, thus achieving descaling and preventing the accumulation of large amounts of material on the inner wall of the rotary kiln 1, which would affect normal operation. This solution effectively recycles the high-temperature hot air generated by the rotary kiln 1 and descals the inner wall of the rotary kiln 1, achieving heat recycling and saving energy and protecting the environment.

[0042] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Based on the technical essence of the present invention, any simple modifications, equivalent substitutions, and improvements made to the above embodiments within the spirit and principles of the present invention shall still fall within the protection scope of the present invention.

Claims

1. A striking device driven by hot gas from a rotary kiln, characterized in that, The device includes a striking device and a support frame (2) installed on the side wall of the rotary kiln (1). The striking device includes a power unit (4) and striking components. The power unit (4) includes a base (29), a connecting seat (27), and a cover plate (17). The base (29) is fixed on the support frame (2). The base (29) has a cavity inside, and a suitable piston (25) is slidably connected inside the cavity. The connecting seat (27) is fixed between the cover plate (17) and the cover plate (17). An air inlet chamber (16) is formed between the cover plate (17) and the connecting seat (27). An air inlet pipe (11) for introducing hot air from the rotary kiln (1) into the air inlet chamber (16) is provided on the cover plate (17). The connecting seat (27) is provided with a first air passage (30) and a second air passage (18) respectively connected to the air inlet chamber (16). An air outlet passage (26) is provided between the first air passage (30) and the second air passage (18). The first air passage (30) and the piston (25) The first cavity (28) on one side is connected, and the second air passage (18) is connected to the second cavity (24) on the other side of the piston (25). A drive rod (23) extending to the outside of the base (29) is connected to one side of the piston (25). A slider (32) is slidably provided in the air inlet cavity (16). An air outlet cavity (12) is formed between the slider (32) and the connecting seat (27). A guide rod (20) extending to the outside of the cover plate (17) is connected to the side of the slider (32). A transmission component (8) is also hinged on the support frame (2). The transmission component (8) is hinged to the guide rod (20). A control block (3) is provided on the drive rod (23) for controlling the transmission component (8) to drive the guide rod (20) to move laterally and controlling the hot air to alternately enter the first air passage (30), the second air passage (18) and the exhaust through the slider (32). The drive rod (23) drives the striking component to reciprocate and strike the wall of the rotary kiln (1). The transmission component (8) includes a first push rod (19) and a second push rod (21). The first push rod (19) and the second push rod (21) are hinged to the support frame (2). One end of the first push rod (19) and the second push rod (21) are both hinged to the guide rod (20). The control block (3) is located between the first push rod (19) and the second push rod (21). When the piston (25) drives the control block (3) to contact the first push rod (19) and drives the guide rod (20) to move laterally, the first push rod (19) is hinged to the guide rod (21). The first air passage (30) connects to the first cavity (28) and the inlet cavity (16), and the second air passage (18) connects to the outlet cavity (12) and the outlet air passage (26); when the piston (25) drives the control block (3) to contact the second push rod (21) and drive the guide rod (20) to move laterally, the first air passage (30) connects to the outlet cavity (12) and the outlet air passage (26), and the second air passage (18) connects to the second cavity (24) and the inlet cavity (16); The control block (3) is square in shape and is fixed on the drive rod (23). The control block (3) is provided with a protruding rod (22) that facilitates contact with the first push rod (19) and the second push rod (21).

2. The impact device driven by hot gas from a rotary kiln according to claim 1, characterized in that, The striking assembly includes a striking hammer (6) and a connecting rod (5). The striking hammer (6) is vertically fixed to one end of the connecting rod (5), and the other end of the connecting rod (5) is rotatably connected to the side wall of the rotary kiln (1). The rotatable connection point is used as the dividing point (33). The center of gravity of the connecting rod (5) is located on the side with the striking hammer (6), and the height of the left end of the connecting rod (5) is less than that of the right end.

3. The impact device driven by hot gas from a rotary kiln according to claim 2, characterized in that, The weight of the connecting rod (5) on the left side of the dividing point (33) is 5-10 times that on the right side.

4. The impact device driven by hot gas from a rotary kiln according to claim 2, characterized in that, Two mounting seats (7) are welded on the side wall of the rotary kiln (1), and the connecting rod (5) is provided with rotating shafts (9) on both sides for rotating connection with the mounting seats (7).

5. The impact device driven by hot gas from a rotary kiln according to claim 2, characterized in that, The top surface of the connecting rod (5) is provided with an assembly groove (10) located to the right of the dividing point (33), and the size of the assembly groove (10) is larger than the size of the driving rod (23).

6. The impact device driven by hot gas from a rotary kiln according to claim 5, characterized in that, The inner wall of the assembly groove (10) is fixed with a rubber layer or a polyurethane layer.

7. The impact device driven by hot gas from a rotary kiln according to claim 1, characterized in that, The air inlet pipe (11) is equipped with a flow valve (31), the air outlet channel (26) is connected to the external air outlet pipe (13), and the end of the air outlet pipe (13) is equipped with a purification box (15), and activated carbon plates (14) are distributed at intervals inside the purification box (15).

8. The impact device driven by hot gas from a rotary kiln according to claim 1, characterized in that, A sealing ring is provided between the drive rod (23) and the side wall of the base (29), and a sealing ring is provided between the guide rod (20) and the side wall of the cover plate (17).

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