A spray structure for a bar-type closed bin stacker and a method of use

Abstract

This invention relates to the field of stacker spraying technology, specifically to a spraying structure and method for a strip-shaped enclosed silo stacker. The structure includes a cantilever mounted on the stacker body, with a discharge cylinder on the lower surface of the cantilever; a rotating water-connecting chamber is located below the cantilever and coaxial with the discharge cylinder, connected to a water supply assembly that supplies water to the chamber; the chamber rotates under the drive of a drive assembly; multiple spray pipes are located below the rotating water-connecting chamber and distributed along its circumference, each pipe having a nozzle fixed at its lower end; under the action of a swing assembly, the pipes and nozzles swing towards or away from the discharge cylinder. This invention offers advantages such as expanded coverage, improved dust suppression uniformity, and the ability to form a concentrated, dense atomized coverage area directly above the actual stacking point, thereby enhancing the efficiency of dust suppression at the stacking point.

Description

Technical Field

[0001] This invention relates to the field of stacker spraying technology, specifically to a spraying structure and method for use in a strip-shaped enclosed silo stacker. Background Technology

[0002] Enclosed bar silos are core sealed facilities for bulk material storage and transfer in the mining and industrial sectors, with stackers playing a crucial role in continuous material stacking operations. During the stacking of bulk materials such as coal, ore, and sand, a large amount of dust is generated as the material falls from the stacker's cantilever discharge hopper and accumulates. The enclosed space inside the silo has poor air circulation, preventing the dust from dispersing quickly and easily leading to excessive dust concentrations. This not only pollutes the working environment inside the silo, corrodes equipment components, and reduces equipment lifespan, but also poses a dust explosion hazard and violates industrial environmental dust control standards. Therefore, spray dust suppression is an essential dust control method during stacker operations.

[0003] Currently, most existing strip-shaped enclosed silo stackers employ a fixed spray layout for dust suppression. This involves a row of nozzles fixedly installed along the length of the stacker's cantilever on its lower surface to continuously spray dust onto the area directly below the cantilever. While this approach can cover the working area near the discharge hopper below the cantilever, the nozzles are distributed in a fixed straight line along the cantilever, and the spray direction remains constant. This makes it impossible to provide concentrated and effective atomization coverage for silo stacking points that are far from the cantilever, resulting in poor dust suppression and insufficient ability to inhibit dust diffusion. Summary of the Invention

[0004] In view of this, the present invention provides a spray structure and method of use for a strip-shaped enclosed silo stacker, aiming to solve the problems in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a spray structure for a strip-shaped enclosed silo stacker, comprising, The stacker body is equipped with a cantilever, and the lower surface of the cantilever is equipped with a discharge cylinder. A rotating water-connecting chamber is mounted below the cantilever and coaxial with the discharge cylinder. The rotating water-connecting chamber is connected to a water conveying assembly, which is used to convey water to the rotating water-connecting chamber. The rotating water-connecting chamber rotates under the drive of the drive assembly. Multiple water spray pipes are located below the rotating water connection chamber and distributed along the circumference of the rotating water connection chamber. Each water spray pipe has a nozzle fixed at its lower end. When the rotating water connection chamber rotates, the multiple water spray pipes and nozzles revolve synchronously around the center of the rotating water connection chamber. At the same time, under the action of the swing assembly, the spray pipes and nozzles swing toward or away from the discharge cylinder.

[0006] A further improvement of the present invention is that the water conveying assembly includes: An annular water storage cavity is fixed to the lower surface of the cantilever via a mounting plate. The annular water storage cavity is coaxially nested on the rotating water connecting cavity. The outer circumferential surface of the annular water storage cavity is a first opening, and the inner circumferential surface of the rotating water connecting cavity is a second opening. The first opening and the second opening are rotatably connected and communicate with each other. A water pipe is fixed on the lower surface of the cantilever, with its first end connected to the water supply equipment and its second end connected to the annular water storage chamber.

[0007] A further improvement of the present invention is that the driving component includes: The first gear is coaxially fixed on the outer circumferential surface of the rotating water-connecting cavity; The motor is fixedly mounted in a housing on the lower surface of the cantilever. The housing has a notch on the side facing the first gear. The second gear fixed at the output end of the motor passes through the notch and meshes with the first gear.

[0008] A further improvement of the present invention is that a plurality of water pipes are provided below the rotating water-connecting cavity along its circumference, and the plurality of water pipes correspond one-to-one with a plurality of water spray pipes. The upper end of the water pipe is connected to the rotating water-connecting cavity, and the lower end is provided with a connector. The water pipe is connected to the upper end of the corresponding water spray pipe through the connector.

[0009] A further improvement of the present invention is that the connector includes a connecting frame with a hollow structure inside, the water inlet at the upper end is connected to the lower end of the water pipe, two water outlets are provided on both sides inside the connecting frame, and two connecting pipes on both sides of the upper end of the spray pipe are respectively connected to and communicate with the two water outlet shafts.

[0010] A further improvement of the present invention is that the oscillating component includes: Multiple connecting plates correspond one-to-one with multiple water pipes. The upper end of the connecting plate is fixedly connected to the corresponding water pipe, and the lower end is fixedly provided with a horizontal fixing sleeve. Multiple telescopic rods correspond one-to-one with multiple fixed sleeves. The telescopic rods are coaxially nested in the corresponding fixed sleeves. The first end of the telescopic rod passes through the first end of the fixed sleeve and is fixedly provided with a guide post. The guide post is slidably connected to the elongated slot on the corresponding water spray pipe. The second end of the telescopic rod passes through the second end of the fixed sleeve and is connected to the telescopic component.

[0011] A further improvement of the present invention is that a retaining ring is coaxially fixed inside the fixed sleeve, the retaining ring is slidably connected to the corresponding telescopic rod, a boss is coaxially fixed on the telescopic rod inside the fixed sleeve, the boss is disposed opposite to the retaining ring, and a spring is provided on the telescopic rod between the boss and the retaining ring.

[0012] A further improvement of the present invention is that the telescopic member comprises: A support ring is coaxial with the annular water storage cavity, and its upper end is fixedly connected to the lower end of the annular water storage cavity; A fixing ring is coaxially fixed on the outer circumferential surface of the support ring. The fixing ring has multiple concave portions along its circumferential direction, and a convex portion is provided between every two concave portions. The second end of the telescopic rod is provided with a rotatable roller, which alternately contacts the concave portions and the convex portions.

[0013] A further improvement of the present invention is that it includes the following steps: S1. The stacker body moves to the designated stacking operation position of the strip-shaped enclosed silo and starts the external water supply equipment. Clean water is transported to the inside of the annular water storage chamber through the water pipe fixed on the lower surface of the cantilever. The clean water flows from the annular water storage chamber into the rotating water connection chamber and then through multiple water pipes and hollow connectors below the rotating water connection chamber, and finally to each water spray pipe and nozzle. S2. Start the motor. The motor output drives the second gear to rotate. The second gear drives the first gear to rotate. The first gear drives the rotating water chamber to rotate continuously around the central axis that coincides with the discharge cylinder. During the rotation of the rotating water chamber, it drives the multiple water pipes, spray pipes and nozzles distributed on the lower circumference to revolve synchronously around the central axis. S3. When the rotating water chamber revolves, it drives each connecting plate, fixed sleeve and telescopic rod to rotate synchronously around the central axis. The roller at the end of the telescopic rod rolls alternately along the concave and convex parts of the fixed ring. When the roller contacts the convex part of the fixed ring, the roller is pressed and drives the telescopic rod to extend outward of the fixed sleeve, pushing the guide column to slide along the long slot of the water spray pipe, driving the water spray pipe and nozzle to swing away from the discharge cylinder. When the roller slides to the concave part of the fixed ring, the telescopic rod loses the squeezing limit, the spring between the retaining ring and the boss inside the fixed sleeve resets, pushes the telescopic rod to retract inward, drives the guide column to slide in the opposite direction, and drives the water spray pipe and nozzle to swing towards the discharge cylinder.

[0014] The technological advancements achieved by this invention due to the adoption of the above technical solutions are as follows: This invention provides a spray structure and method for use in a strip-shaped enclosed silo stacker. Multiple water spray pipes are evenly arranged circumferentially below the rotating water-connecting chamber. Driven by a drive assembly, the rotating water-connecting chamber continuously rotates around its central axis, which coincides with the discharge cylinder. This allows each water spray pipe and nozzle to revolve circumferentially around the discharge cylinder, greatly expanding the spray coverage area. It enables continuous and uniform dust suppression spraying over the entire circular working area below the cantilever. Simultaneously, a swing assembly drives the water spray pipes and nozzles to reciprocate radially, allowing the spray direction to be adaptively adjusted towards or away from the discharge cylinder. Compared to existing technologies, this results in a wider coverage area, improved dust suppression uniformity, and the formation of a concentrated, fine atomized coverage area directly above the actual stacking point, enhancing the efficiency of dust dispersion suppression at the stacking point.

[0015] In this invention, the water supply component adopts a structural design in which an annular water storage cavity is coaxially nested inside the rotating water connection cavity and connected through the rotational cooperation of the first opening and the second opening. This allows the external water supply equipment to continuously supply water to the interior of the rotating water connection cavity during its continuous rotation, ensuring continuous and uniform spraying of each nozzle during its circumferential revolution, eliminating the need for water replenishment and improving operational continuity.

[0016] In this invention, the roller at the end of the telescopic rod rolls in alternating contact with the concave and convex parts of the fixed ring. With the synergistic action of the retaining ring, the boss and the spring, the radial oscillation of the nozzle can automatically switch back and forth during the revolution. There is no need to configure a separate drive motor or pneumatic-hydraulic drive element for the oscillation action. The structure is compact, energy consumption is low, control is simple and operation is highly reliable.

[0017] In this invention, the water inlet at the upper end of the hollow connecting frame is connected to the water pipe, and the water outlets on both sides of the connecting frame are rotatably connected to the two connecting pipes at the upper end of the spray pipe. This ensures that the internal liquid channel of the spray pipe remains unobstructed during the radial swinging process, the hydraulic connection is stable, the sealing is good, and the common problems of jamming, leakage, and spray interruption during the swinging process of the spray pipe are effectively avoided, resulting in a long service life. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of the spray structure described in this invention; Figure 2 This is a schematic diagram of the driving component of the spray structure described in this invention; Figure 3 This is a schematic diagram of the water delivery component of the spray structure described in this invention; Figure 4 This is a schematic diagram of the oscillating component of the spray structure described in this invention; Figure 5 This is a schematic diagram of the interior of the fixing sleeve of the spray structure described in this invention.

[0020] Explanation of reference numerals in the attached figures: 10-Cantilever, 11-Discharge cylinder, 12-Rotating water chamber, 121-Second opening, 122-Water pipe, 123-Connecting frame, 13-Water spray pipe, 131-Spray head, 132-Connecting pipe, 133-Long slot, 20-Water conveying assembly, 21-Annular water storage chamber, 22-Mounting plate, 23-First opening, 24-Water conveying pipe, 30-Drive assembly, 31-First gear, 32-Motor, 321-Second gear, 33-Box body, 40-Swing assembly, 41-Connecting plate, 42-Fixing sleeve, 421-Sticking ring, 43-Telescopic rod, 431-Boss, 432-Spring, 433-Roller, 44-Guide column, 50-Telescopic component, 51-Support ring, 52-Fixing ring, 521-Concave part, 522-Convex part. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, in the following description, specific details such as particular system structures and technologies are set forth for illustrative purposes rather than for limiting purposes, in order to provide a thorough understanding of the embodiments of the present invention. However, those skilled in the art should understand that the present invention can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary details.

[0022] This invention provides a spray structure and usage method for a strip-shaped enclosed silo stacker, as per the attached instruction manual. Figure 1 To be continued Figure 5 It can be seen that a spray structure and usage method for a strip-shaped enclosed silo stacker mainly includes the following parts or components: stacker body, cantilever 10, discharge cylinder 11, water conveying assembly 20, rotating water connecting chamber 12, spray pipe 13, nozzle 131, and swing assembly 40.

[0023] In this invention, the stacker body is provided with a cantilever 10, and the lower surface of the cantilever 10 is provided with a discharge cylinder 11; the rotating water chamber 12 is rotated below the cantilever 10 and coaxial with the discharge cylinder 11. The rotating water chamber 12 is connected to the water supply component 20, which is used to supply water to the rotating water chamber 12. The rotating water chamber 12 rotates under the drive of the drive component 30; multiple water spray pipes 13 are provided below the rotating water chamber 12 and distributed along the circumference of the rotating water chamber 12. Each water spray pipe 13 has a nozzle 131 fixed at its lower end. When the rotating water chamber 12 rotates, the multiple water spray pipes 13 and nozzles 131 synchronously revolve around the center of the rotating water chamber 12. At the same time, under the action of the swing component 40, the spray pipes and nozzles 131 swing toward or away from the discharge cylinder 11.

[0024] The external water supply equipment delivers clean water to the rotating water chamber 12 via the water conveying component 20. The drive component 30 drives the rotating water chamber 12 to rotate continuously around the central axis that coincides with the discharge cylinder 11. During the rotation, multiple water pipes 122 distributed around the circumference below drive each water spray pipe 13 and nozzle 131 to revolve synchronously around the central axis. At the same time, the swing component 40 acts on each water spray pipe 13, causing the nozzle 131 to reciprocate radially toward or away from the discharge cylinder 11 while revolving. This creates a continuous, uniform, and adaptive covering spray over the entire circular working area below the cantilever 10, covering the material stacking point.

[0025] Specifically, there are 4 to 8 water spray pipes 13. The spray fan shapes of adjacent nozzles 131 should have overlapping coverage areas. The nozzles 131 should be atomizing nozzles 131 (hollow cone or solid cone), and the dust suppression effect is best when the particle size is 50 to 150 μm.

[0026] As one embodiment, according to the appendix to the specification Figure 2 To be continued Figure 3 It is known that the water supply component 20 includes an annular water storage cavity 21, which is fixed to the lower surface of the cantilever 10 via a mounting plate 22. The annular water storage cavity 21 is coaxially nested on the rotating water connecting cavity 12. The outer circumferential surface of the annular water storage cavity 21 is the first opening 23, and the inner circumferential surface of the rotating water connecting cavity 12 is the second opening 121. The first opening 23 and the second opening 121 are rotatably connected and communicate with each other. The water supply pipe 24 is fixed on the lower surface of the cantilever 10, with its first end connected to the water supply equipment and its second end communicating with the annular water storage cavity 21.

[0027] Clean water from the external water supply equipment enters the annular water storage chamber 21 through the second end of the water pipe 24. The annular water storage chamber 21 forms a sliding fit and is connected with the second opening 121 on the inner circumference of the rotating water connection chamber 12 through the first opening 23 on its outer circumference surface. Since the annular water storage chamber 21 remains stationary when the rotating water connection chamber 12 continues to rotate, the two maintain water connection through relative sliding, and clean water can flow into the rotating water connection chamber 12 continuously and then be distributed downward to each water pipe 122 and spray pipe 13.

[0028] Specifically, the first opening 23 and the second opening 121 adopt a symmetrical double-opening structure, which can effectively counteract the lateral hydraulic impact generated by water entering from one side on the rotating water-connecting chamber 12, making its rotation more stable. Specifically, the sliding fit uses a combination of clearance and O-ring sealing (existing technology), with a radial clearance of 0.5~1.5mm; Specifically, a one-way valve, a flow regulating valve, and a filter are installed at the inlet of the water pipe 24 into the annular water storage chamber 21 to facilitate shutdown maintenance and control of water volume. Specifically, the annular water storage chamber 21 and the mounting plate 22 adopt a detachable structure (such as flange connection) to facilitate the cleaning of scale. In addition, the top of the annular water storage chamber 21 is provided with an exhaust hole to prevent air accumulation from blocking the water passage.

[0029] As one embodiment, according to the appendix to the specification Figure 2 It is known that the drive assembly 30 includes a first gear 31, which is coaxially fixed on the outer circumferential surface of the rotating water cavity 12; the motor 32 is fixed in the housing 33 on the lower surface of the cantilever 10, and the side of the housing 33 facing the first gear 31 has a notch. The second gear 321 fixed at the output end of the motor 32 passes through the notch and meshes with the first gear 31.

[0030] When the motor 32 is started, the second gear 321 at the output end of the motor 32 rotates around its own axis. Since the housing 33 only has a notch on the side facing the first gear 31, the second gear 321 can extend out of the notch and mesh with the first gear 31, thereby transmitting power to the first gear 31 which is coaxially fixed on the outer circumferential surface of the rotating water cavity 12, driving the entire rotating water cavity 12 (along with the water pipe 122 below, the spray pipe 13, etc.) to rotate continuously.

[0031] Specifically, an elastic coupling or torque limiter is set between the second gear 321 and the output end of the motor 32 to prevent damage to the gear pair or burnout of the motor 32 when the nozzle 131 is stuck by a hard object. The motor 32 is a variable frequency motor 32, which facilitates precise adjustment of the revolution speed and realizes soft start and soft stop. Specifically, the housing 33 is dustproof and sealed (IP54 and above) to adapt to the high dust environment inside the silo.

[0032] Specifically, the housing 33 extends downward to form an integral gearbox that simultaneously accommodates the motor 32, the second gear 321, and the outer edge of the first gear 31. The integral gearbox has a clearance opening on the side facing the first gear 31 for the second gear 321 to pass through. A seal is also provided at the mating point between the integral gearbox and the rotating water chamber 12, and a drain hole is provided at the bottom. This effectively protects the motor 32, the first gear 31, and the second gear 321.

[0033] As one embodiment, according to the appendix to the specification Figure 4 It can be seen that multiple water pipes 122 are provided below the rotating water chamber 12 along its circumference. The multiple water pipes 122 correspond one-to-one with multiple water spray pipes 13. The upper end of the water pipe 122 is connected to the rotating water chamber 12, and the lower end is provided with a connector. The water pipe 122 is connected to the upper end of the corresponding water spray pipe 13 through the connector.

[0034] When the water-connecting cavity 12 rotates, multiple water-connecting pipes 122 distributed around its lower circumference are rigidly connected to the rotating water-connecting cavity 12 and rotate synchronously. The upper end of the water-connecting pipe 122 is always connected to the internal cavity of the rotating water-connecting cavity 12. Clean water is delivered to the corresponding spray pipe 13 through the connector at the lower end of the water-connecting pipe 122, so that each nozzle 131 can spray continuously and evenly during the revolution.

[0035] Specifically, the number of water pipes 122 is equal to the number of water spray pipes 13, and they are evenly distributed along the circumference (4, 6, and 8 pipes, with corresponding angular intervals of 90 degrees, 60 degrees, and 45 degrees). The water pipes 122 are round pipes, which can reduce hydraulic loss. Specifically, the connection between the water pipe 122 and the rotating water chamber 12 adopts a threaded connection and an O-ring seal (existing technology), which facilitates single-pipe replacement and maintenance; As one embodiment, according to the appendix to the specification Figure 4 It can be seen that the connector includes a connecting frame 123, which has a hollow structure. The water inlet at the upper end is connected to the lower end of the water pipe 122. There are two water outlets on both sides inside the connecting frame 123. The two connecting pipes 132 on both sides of the upper end of the spray pipe 13 are connected to the two water outlet shafts respectively.

[0036] Clean water enters the inlet at the upper end of the hollow connecting frame 123 from the lower end of the water pipe 122, and then flows out from the two outlets on the left and right sides of the inner wall of the connecting frame 123. At the same time, the two connecting pipes 132 fixed at the upper end of the spray pipe 13 are rotatably connected to the two outlets. When the spray pipe 13 swings around its own horizontal axis under the action of the swing component 40, the two connecting pipes 132 can rotate relative to each other in the two outlets, but the liquid channel always remains unobstructed and the water path inside the spray pipe 13 is not interrupted.

[0037] Specifically, the rotational engagement of the two water outlets and the two connecting pipes 132 adopts an O-ring and self-lubricating bearing bushing structure (existing technology), which can ensure reliable sealing and smooth operation during the swing process; Specifically, the main body of the connecting bracket 123 is made of stainless steel or aluminum alloy, and anodizing treatment is performed when necessary to improve corrosion resistance; Specifically, the outlet pipe wall thickness should be no less than 3mm, and local reinforcement should be added to avoid long-term oscillation and wear.

[0038] As one embodiment, according to the appendix to the specification Figure 4It is known that the swing assembly 40 includes multiple connecting plates 41, which correspond one-to-one with multiple water pipes 122. The upper end of the connecting plate 41 is fixedly connected to the corresponding water pipe 122, and the lower end is fixedly provided with a horizontal fixing sleeve 42. Multiple telescopic rods 43 correspond one-to-one with multiple fixing sleeves 42. The telescopic rods 43 are coaxially nested in the corresponding fixing sleeves 42. The first end of the telescopic rod 43 passes through the first end of the fixing sleeve 42 and is fixedly provided with a guide post 44. The guide post 44 is slidably connected to the elongated slot 133 on the corresponding water spray pipe 13. The second end of the telescopic rod 43 passes through the second end of the fixing sleeve 42 and is connected to the telescopic component 50.

[0039] When the telescopic rod 43 slides along its own axis under the action of external force, the guide post 44 slides along the axial direction of the long slot 133. Since the direction of the long slot 133 is consistent with the radial direction of the water spray pipe 13, the sliding of the guide post 44 will be converted into the rotation of the water spray pipe 13, that is, the nozzle 131 swings towards or away from the discharge cylinder 11.

[0040] Specifically, the seals at both ends of the telescopic rod 43 are a combination of dustproof rings and sealing rings (existing technology) to prevent dust from the hopper from entering the fixed sleeve 42 and causing contamination.

[0041] As one embodiment, according to the appendix to the specification Figure 5 It can be seen that a retaining ring 421 is coaxially fixed inside the fixed sleeve 42. The retaining ring 421 is slidably connected to the corresponding telescopic rod 43. A boss 431 is coaxially fixed on the telescopic rod 43 inside the fixed sleeve 42. The boss 431 is opposite to the retaining ring 421. A spring 432 is provided on the telescopic rod 43 between the boss 431 and the retaining ring 421.

[0042] The retaining ring 421, which is coaxially fixed inside the fixed sleeve 42, remains stationary. The boss 431, which is coaxially fixed on the telescopic rod 43, is located inside the fixed sleeve 42 and is positioned opposite to the retaining ring 421. A spring 432 is provided on the telescopic rod 43 between the two. When an external force pushes the telescopic rod 43 to slide to one side, the boss 431 moves accordingly and compresses or stretches the spring 432 to store energy. After the external force disappears, the spring 432 releases its elastic potential energy and pushes the boss 431 and the telescopic rod 43 back to their initial positions. The water spray pipe 13 then swings in the opposite direction to achieve automatic swinging.

[0043] Specifically, the two ends of the spring 432 are fixedly connected to the retaining ring 421 and the boss 431, respectively; Specifically, spring 432 is made of corrosion-resistant materials (such as stainless steel spring 432) or has a surface anti-corrosion treatment. Specifically, dustproof rings and sealing rings are installed at both ends of the entire fixed sleeve 42 to prevent dust from the hopper from entering and contaminating the working surface of the spring 432.

[0044] As one embodiment, according to the appendix to the specification Figure 3 To be continued Figure 4It is known that the telescopic component 50 includes a support ring 51, which is coaxial with the annular water storage cavity 21, and its upper end is fixedly connected to the lower end of the annular water storage cavity 21; the fixing ring 52 is coaxially fixed on the outer circumferential surface of the support ring 51, and the fixing ring 52 is provided with a plurality of concave portions 521 along its circumferential direction, and a convex portion 522 is provided between every two concave portions 521; the second end of the telescopic rod 43 is provided with a rotatable roller 433, and the roller 433 alternately contacts the concave portions 521 and the convex portions 522 respectively.

[0045] The support ring 51 is coaxial with the annular water storage cavity 21 and fixed at the upper end. The lower end of the outer circumferential surface is coaxially fixed with a fixing ring 52. The fixing ring 52 is alternately provided with concave part 521 and convex part 522 along the circumferential direction. When the water connection cavity 12 rotates continuously, the rollers 433 installed on each connecting plate 41 roll along the outer circumference of the fixing ring 52.

[0046] When the roller 433 rolls to the convex part 522, the convex part 522 radially presses the roller 433, pushing the telescopic rod 43 to extend away from the fixed ring 52 (that is, the guide post 44 slides along the long slot 133), and the water spray pipe 13 and the nozzle 131 swing away from the discharge cylinder 11. When roller 433 leaves the convex part 522 and enters the concave part 521, the telescopic rod 43 loses radial compression, the spring 432 automatically resets, pushing the telescopic rod 43 to retract in the opposite direction, and the water spray pipe 13 and nozzle 131 swing back towards the discharge cylinder 11. In this way, by means of the revolution motion, the nozzle 131 realizes continuous and automatic reciprocating oscillation.

[0047] Specifically, the transition section between the convex part 522 and the concave part 521 adopts an R-shaped arc transition (instead of a right angle or a slope), which can reduce the impact and noise of the roller 433; Specifically, the number of concave parts 521 and convex parts 522 is generally equal to the number of water spray pipes 13, ensuring that each nozzle 131 undergoes the same swing-back cycle. Specifically, the roller 433 bearing adopts a self-lubricating bearing (oil-impregnated bearing or PTFE bushing) to reduce the frequency of maintenance, and anti-loosening measures are taken between the roller 433 and the telescopic rod 43 (such as retaining rings and slotted nuts). Specifically, the surface of the retaining ring 52 is hardened (surface hardening, hard chrome plating) to reduce the wear rate of the roller 433; Specifically, the entire swing assembly 40 (support ring 51, fixed ring 52, roller 433 area) is equipped with a dust cover or labyrinth seal to prevent long-term dust accumulation from causing the moving parts to jam. Specifically, a reinforcing rib structure is provided between the support ring 51 and the annular water storage cavity 21 to avoid fatigue fracture caused by long-term vibration.

[0048] This invention provides a spray structure and usage method for a strip-shaped enclosed silo stacker. The specific usage method is as follows: The stacker body moves to the designated stacking position in the strip-shaped enclosed silo, and the external water supply equipment is activated. Clean water is transported through the water pipe 24 fixed to the lower surface of the cantilever 10 to the interior of the annular water storage chamber 21. The clean water flows from the annular water storage chamber 21 into the rotating water connection chamber 12, and then through multiple water pipes 122 and hollow connectors below the rotating water connection chamber 12, finally reaching each spray pipe 13 and nozzle 131. The motor 32 is activated, and the output end of the motor 32 drives the second gear 321 to rotate. The second gear 321 drives the first gear 31 to rotate, and the first gear 31 drives the rotating water connection chamber 12 to continuously rotate around the central axis that coincides with the discharge cylinder 11. During the rotation of the rotating water connection chamber 12, it drives the multiple water pipes 122, spray pipes 13 and nozzles 131 distributed circumferentially below to revolve synchronously around the central axis. When the rotating water connection chamber 12 revolves... The connecting plates 41, the fixed sleeve 42, and the telescopic rod 43 rotate synchronously around the central axis. The roller 433 at the end of the telescopic rod 43 rolls alternately along the concave part 521 and the convex part 522 of the fixed ring 52. When the roller 433 contacts the convex part 522 of the fixed ring 52, the roller 433 is pressed and drives the telescopic rod 43 to extend outward from the fixed sleeve 42, pushing the guide column 44 to slide along the long slot 133 of the water spray pipe 13, driving the water spray pipe 13 and the nozzle 131 to swing away from the discharge cylinder 11. When the roller 433 slides down to the concave part 521 of the fixed ring 52, the telescopic rod 43 loses its compression limit, the spring 432 between the retaining ring 421 and the boss 431 inside the fixed sleeve 42 resets, pushing the telescopic rod 43 to retract inward, driving the guide column 44 to slide in the opposite direction, driving the water spray pipe 13 and the nozzle 131 to swing towards the discharge cylinder 11. It should be noted that in this patent application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0049] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be included within the protection scope of the present invention.

Claims

1. A spray structure for a strip-shaped enclosed silo stacker, characterized in that, include, The stacker body is provided with a cantilever (10), and the lower surface of the cantilever (10) is provided with a discharge cylinder (11). The rotating water chamber (12) is mounted below the cantilever (10) and coaxial with the discharge cylinder (11). The rotating water chamber (12) is connected to the water conveying assembly (20). The water conveying assembly (20) is used to convey water to the rotating water chamber (12). The rotating water chamber (12) rotates under the drive of the drive assembly (30). Multiple water spray pipes (13) are located below the rotating water connection chamber (12) and distributed along the circumference of the rotating water connection chamber (12). Each water spray pipe (13) has a nozzle (131) fixed at its lower end. When the rotating water connection chamber (12) rotates, the multiple water spray pipes (13) and nozzles (131) revolve around the center of the rotating water connection chamber (12) synchronously. At the same time, under the action of the swing assembly (40), the spray pipes and nozzles (131) swing toward or away from the discharge cylinder (11).

2. The spray structure for a strip-shaped enclosed silo stacker according to claim 1, characterized in that, The water conveyance assembly (20) includes: An annular water storage cavity (21) is fixed to the lower surface of the cantilever (10) via a mounting plate (22). The annular water storage cavity (21) is coaxially nested on the rotating water connecting cavity (12). The outer circumferential surface of the annular water storage cavity (21) is a first opening (23), and the inner circumferential surface of the rotating water connecting cavity (12) is a second opening (121). The first opening (23) and the second opening (121) are rotatably connected and communicate with each other. The water pipe (24) is fixed on the lower surface of the cantilever (10), with its first end connected to the water supply equipment and its second end connected to the annular water storage chamber (21).

3. The spray structure for a strip-shaped enclosed silo stacker according to claim 1, characterized in that, The driver component (30) includes: The first gear (31) is coaxially fixed on the outer circumferential surface of the rotating water-connecting cavity (12); The motor (32) is fixed inside the housing (33) on the lower surface of the cantilever (10). The housing (33) has a notch on the side facing the first gear (31). The second gear (321) fixed at the output end of the motor (32) passes through the notch and meshes with the first gear (31).

4. The spray structure for a strip-shaped enclosed silo stacker according to claim 2, characterized in that, Multiple water pipes (122) are provided below the rotating water chamber (12) along its circumference. The multiple water pipes (122) correspond one-to-one with multiple water spray pipes (13). The upper end of the water pipe (122) is connected to the rotating water chamber (12), and the lower end is provided with a connector. The water pipe (122) is connected to the upper end of the corresponding water spray pipe (13) through the connector.

5. The spray structure for a strip-shaped enclosed silo stacker according to claim 4, characterized in that, The connector includes a connecting frame (123), which has a hollow structure. The water inlet at the upper end is connected to the lower end of the water pipe (122). Two water outlets are provided on both sides of the connecting frame (123). The two connecting pipes (132) on both sides of the upper end of the spray pipe (13) are connected to the two water outlet shafts respectively.

6. The spray structure for a strip-shaped enclosed silo stacker according to claim 4, characterized in that, The swing assembly (40) includes: Multiple connecting plates (41) correspond one-to-one with multiple water pipes (122). The upper end of the connecting plate (41) is fixedly connected to the corresponding water pipe (122), and the lower end is fixedly provided with a horizontal fixing sleeve (42). Multiple telescopic rods (43) correspond one-to-one with multiple fixed sleeves (42). The telescopic rods (43) are coaxially nested in the corresponding fixed sleeves (42). The first end of the telescopic rod (43) passes through the first end of the fixed sleeve (42) and is fixedly provided with a guide post (44). The guide post (44) is slidably connected to the elongated slot (133) on the corresponding water spray pipe (13). The second end of the telescopic rod (43) passes through the second end of the fixed sleeve (42) and is connected to the telescopic component (50).

7. The spray structure for a strip-shaped enclosed silo stacker according to claim 6, characterized in that, A retaining ring (421) is coaxially fixed inside the fixed sleeve (42). The retaining ring (421) is slidably connected to the corresponding telescopic rod (43). A boss (431) is coaxially fixed on the telescopic rod (43) inside the fixed sleeve (42). The boss (431) is opposite to the retaining ring (421). A spring (432) is provided on the telescopic rod (43) between the boss (431) and the retaining ring (421).

8. The spray structure for a strip-shaped enclosed silo stacker according to claim 7, characterized in that, The telescopic component (50) includes: The support ring (51) is coaxial with the annular water storage cavity (21), and its upper end is fixedly connected to the lower end of the annular water storage cavity (21); A fixing ring (52) is coaxially fixed on the outer circumferential surface of the support ring (51). The fixing ring (52) has multiple concave portions (521) along its circumferential direction, and a convex portion (522) is provided between every two concave portions (521). The second end of the telescopic rod (43) is provided with a rotatable roller (433), and the roller (433) alternately contacts the concave portions (521) and the convex portions (522).

9. A method of using a spray structure for a strip-shaped enclosed silo stacker, characterized in that, Using the spray structure according to any one of claims 1 to 8 includes the following steps: S1. The stacker body moves to the designated stacking operation position of the strip-shaped enclosed silo and starts the external water supply equipment. Clean water is transported to the inside of the annular water storage chamber (21) through the water pipe (24) fixed on the lower surface of the cantilever (10). The clean water flows from the annular water storage chamber (21) into the rotating water connection chamber (12), and then through the multiple water pipes (122) and hollow connectors below the rotating water connection chamber (12), it is finally transported to each spray pipe (13) and nozzle (131). S2. Start the motor (32). The output end of the motor (32) drives the second gear (321) to rotate. The second gear (321) drives the first gear (31) to rotate. The first gear (31) drives the rotating water chamber (12) to rotate continuously around the central axis that coincides with the discharge cylinder (11). During the rotation of the rotating water chamber (12), it drives the multiple water pipes (122), water spray pipes (13) and nozzles (131) distributed on the lower circumference to revolve synchronously around the central axis. S3. When the rotating water chamber (12) revolves, it drives each connecting plate (41), fixed sleeve (42), and telescopic rod (43) to rotate synchronously around the central axis. The roller (433) at the end of the telescopic rod (43) alternately rolls and contacts the concave part (521) and convex part (522) of the fixed ring (52). When the roller (433) contacts the convex part (522) of the fixed ring (52), the roller (433) is pressed and drives the telescopic rod (43) to extend outward from the fixed sleeve (42), pushing the guide column (44) along the water spray pipe (13). The long slot (133) slides, driving the water spray pipe (13) and nozzle (131) to swing away from the discharge cylinder (11). When the roller (433) slides down to the concave part (521) of the fixing ring (52), the telescopic rod (43) loses its squeezing limit. The spring (432) between the retaining ring (421) and the boss (431) inside the fixing sleeve (42) resets, pushing the telescopic rod (43) to retract inward, driving the guide column (44) to slide in the opposite direction, driving the water spray pipe (13) and nozzle (131) to swing towards the discharge cylinder (11).

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