A spray-drying tower cleaner

Abstract

The present application relates to the technical fields of drying tower cleaning, and provides a spray drying tower cleaner, which comprises a drying tower, a cover seat is arranged on the top of the drying tower, a heater is installed on the cover seat, a water outlet pipeline of the heater extends into the center of the cover seat, a cleaning nozzle is fixed to the bottom of the cover seat, and a centrifugal driving type scrubbing mechanism comprises a base frame, a controllable displacement seat, an elastic return member, a mounting frame and a plurality of scrubbing rods. The mechanical automatic return function is used to automatically separate the scrubbing rods from the tower wall and maintain a gap, to realize the working effect of dynamic adhesion brushing during cleaning and automatic gap avoidance during non-cleaning working conditions, and to solve the problems of the traditional spray drying tower cleaning device, such as the fixed adhesion structure, the easy accumulation and adhesion of materials on the tower wall for a long time, the easy pulling and deformation damage of components during working condition switching, the short service life, the dead angle of single spray cleaning, and the incomplete cleaning of stubborn residues.

Description

Technical Field

[0001] This invention relates to the field of drying tower cleaning technology, and in particular to a spray drying tower cleaner. Background Technology

[0002] Spray drying towers are widely used drying equipment in chemical, food, and pharmaceutical industries. During operation, material residues, scale, or dust can easily accumulate on the inner walls of the tower. If they are not cleaned promptly and thoroughly, it will not only affect heat transfer efficiency and product quality, but may also breed bacteria, cause cross-contamination, and even affect the safe and stable operation of the equipment.

[0003] Currently, cleaning the inner walls of drying towers mainly relies on manual cleaning or fixed spray cleaning. Manual cleaning suffers from high labor intensity, low efficiency, safety risks, and blind spots. While using fixed cleaning nozzles can achieve a certain degree of automation, the fixed nozzle positions and unidirectional water flow make it difficult to fully adapt to the curved structure of the drying tower's inner walls. Especially for highly viscous or hardened residues, water rinsing alone often has limited cleaning effects, resulting in incomplete and uneven cleaning. Therefore, a mechanical scrubbing component is installed inside the drying tower. During cleaning, the scrubbing component rotates along the cavity wall, scraping off the residue adhering to the cavity wall and improving cleaning efficiency.

[0004] In most existing mechanical contact cleaning solutions, the mechanical scrubbing components remain in close contact with the drying tower cavity wall. When the equipment switches to drying mode after cleaning, a large amount of material residue easily accumulates between the scrubbing components and the tower cavity wall. Over time, this accumulation can cause the scrubbing components to stick and jam against the cavity wall. Furthermore, the relatively long overall length of conventional scrubbing components means that the adhesion resistance can cause them to bend and deform momentarily when rotating, which not only accelerates component wear and aging, significantly shortening their service life, but also affects the stability and cleaning effectiveness of subsequent cleaning operations. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides a spray drying tower cleaner, comprising a drying tower with a cover seat at its top; a heater is mounted on the cover seat, and the water outlet pipe of the heater extends into the center of the cover seat; a cleaning nozzle is fixed at the bottom of the cover seat, and the cleaning nozzle is connected to the water outlet pipe to form a water supply channel; it also includes a centrifugal-driven scrubbing mechanism, which includes a base frame, a controllable displacement seat, an elastic reset component, a mounting bracket, and multiple scrubbing rods; the base frame is fixedly mounted on a rotating device and disposed inside the drying tower and below the cleaning nozzle; a slide rail facing the cleaning nozzle is provided on the top surface of the base frame, and the rotating device is used to drive the slide rail to rotate around the cleaning nozzle; The controllable displacement seat is slidably connected within the slide rail, with one end connected to the base frame via the elastic reset member, and the other end extending toward the inner wall of the drying tower and fixedly connected to the mounting frame; the mounting frame is arranged along the axial direction of the drying tower, and multiple scrubbing rods are arranged axially at intervals on the side facing the inner wall; the base frame is provided with an auxiliary limiting component, and the controllable displacement seat is provided with a limiting protrusion relative to the auxiliary limiting component, the auxiliary limiting component including a limiting rod elastically abutting against the limiting protrusion; When the rotating device drives the base frame to rotate, it slides along the slide rail towards the inner wall of the drying tower under the action of centrifugal force, so as to drive the scrubbing rod to press against the inner wall of the drying tower and cause the elastic reset member to stretch and store elastic potential energy. During the sliding process, the limiting protrusion squeezes and passes the limiting rod, causing the limiting rod to elastically contract and avoid it. After sliding to the position, the limiting rod elastically resets and abuts against the limiting protrusion to prevent the controllable displacement seat from retracting. When the base frame stops rotating, the centrifugal force disappears, the elastic reset member releases elastic potential energy to drive the controllable displacement seat to slide and reset along the slide rail in the opposite direction, so that the scrubbing rod is separated from the inner wall of the drying tower. At the same time, the limiting protrusion squeezes and passes the limiting rod again. After resetting, the limiting rod elastically resets again and abuts against the limiting protrusion to lock the controllable displacement seat in the reset position.

[0006] Further preferably, the auxiliary limiting assembly further includes a sleeve fixed to the side of the base frame, one end of the limiting rod is slidably fitted inside the sleeve, a spring is connected between the end of the limiting rod inside the sleeve and the bottom end of the sleeve cavity, the other end of the limiting rod extends out of the sleeve and is provided with; the limiting protrusion is configured as an arc-shaped structure, and arc-shaped limiting portions are respectively provided on both sides of the arc of the limiting protrusion corresponding to the sliding direction of the controllable displacement seat, and the ball head elastically abuts against the arc-shaped limiting portion of the limiting protrusion.

[0007] More preferably, the base frame is arranged laterally inside the drying tower along the radial direction, and its bottom center position is fixed to the rotating device. The rotating device is located at the center inside the drying tower and is used to drive the base frame to rotate around the central axis of the drying tower.

[0008] More preferably, at least two sets of cleaning nozzles are fixed at the bottom of the cover seat. The cleaning nozzles are symmetrically distributed on both sides of the water outlet pipe and are connected to the water outlet pipe to form two water supply channels. There are two controllable displacement seats. Each controllable displacement seat is equipped with a rod-type wiping mechanism consisting of the mounting frame and the wiping rod. The elastic reset element is a spring, with its two ends extending to both sides and respectively connected to the two controllable displacement seats.

[0009] More preferably, the end of the controllable displacement seat away from the elastic reset member is connected to a collecting rod. The collecting rod extends horizontally along the slide rail and passes through to the end of the base frame to connect to the corresponding mounting frame. A water channel is provided at the top of the collecting rod, with the opening of the water channel facing upward, for collecting water sprayed from the cleaning nozzle. One end of the water channel reaches the controllable displacement seat, and the other end extends directly to the side of the mounting frame where the scrubbing rod is mounted, for delivering the collected water to the scrubbing rod.

[0010] More preferably, the wiping rods are arranged sequentially along the height direction of the mounting frame, and the wiping rods are arranged in multiple rows at intervals along the rotation direction of the mounting frame.

[0011] More preferably, the scrubbing rod is made of soft polyurethane material, which has good hydrophilic properties for retaining and storing water; the end face of the mounting bracket on which the scrubbing rod is mounted is inclined, and the inclined surface is inclined from top to bottom toward the outer periphery of the drying tower.

[0012] More preferably, the base frame has a cuboid structure, and the top surface of the base frame is provided with the slide rail, and the width of the slide rail is greater than the outer contour dimension of the cleaning nozzle.

[0013] More preferably, the top of the controllable displacement seat is an inclined surface, which is set obliquely downward toward the slide rail.

[0014] More preferably, the controllable displacement seat is provided with rollers on both sides, and the rollers make rolling contact with the inner walls of both sides of the slide rail.

[0015] The advantages of this invention compared to the prior art are: This spray drying tower cleaner is directly installed on the drying tower via a cover, saving space. It features a spray water supply function at the top of the drying tower, combined with a centrifugal-driven scrubbing mechanism. The centrifugal force generated by the rotating base drives a controllable displacement seat to actively scrub the tower wall. After cleaning stops, the elastic reset component automatically detaches and resets. This mechanical automatic reset function ensures the scrubbing rod automatically separates from the tower wall while maintaining a gap. This achieves dynamic contact scrubbing during cleaning and automatic gap avoidance during non-cleaning conditions. It solves the problems of traditional spray drying tower cleaning devices, which are mostly fixed wall-mounted structures. These devices are prone to material accumulation and adhesion during long-term contact with the tower wall, component deformation and damage during switching between operating conditions, and short service life. Furthermore, single-spray cleaning often results in dead corners and incomplete cleaning of stubborn residues. Even if the overall length of the scrubbing component is large and its rigidity is poor, there will be no adhesion resistance when the equipment restarts the rotating cleaning operation. Therefore, the scrubbing component will not bend, deform, wear, or age instantly, significantly extending its service life.

[0016] This spray drying tower cleaner combines spray washing and mechanical dynamic scrubbing. Compared to single spray cleaning, it can guide water flow to a large area of ​​the tower wall and simultaneously complete mechanical cleaning, effectively improving the cleanliness and uniformity of the inner wall of the tower. Attached Figure Description

[0017] Figure 1 A schematic diagram of a spray drying tower cleaner provided for an embodiment of the present invention; Figure 2 The spray drying tower cleaner provided for the embodiments of the present invention consists of Figure 1 The diagram shows the interior after the section has been cut open. The scrubbing rod has been removed to allow for a view of the inclined surface of the mounting bracket. Figure 3 The spray drying tower cleaner provided for the embodiments of the present invention consists of Figure 2 A top view diagram of section A after it has been cut open; Figure 4 The spray drying tower cleaner provided for the embodiments of the present invention consists of Figure 2 A top view of section B after it has been cut open. Figure 5 The spray drying tower cleaner provided for the embodiments of the present invention consists of Figure 2 A schematic diagram of the centrifugal-driven scrubbing mechanism after it has been removed from the base frame; Figure 6 A schematic diagram of the rotary cleaning nozzle used in the spray drying tower cleaner provided in an embodiment of the present invention.

[0018] In the diagram: 1. Drying tower; 2. Cover seat; 3. Heater; 4. Water outlet pipe; 5. Cleaning nozzle; 6. Base frame; 61. Slide rail; 7. Controllable displacement seat; 71. Collection rod; 72. Water channel; 73. Roller; 74. Limiting protrusion; 8. Elastic reset component; 9. Mounting bracket; 91. Scrubbing rod; 92. Inclined surface; 10. Auxiliary limiting component; 1010. Limiting rod; 1011. Sleeve; 1012. Ball head. Detailed Implementation

[0019] The above and other embodiments and advantages of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0020] In one implementation, such as Figures 1-6 As shown: This embodiment provides a spray drying tower cleaner, including a drying tower 1, with a cover seat 2 at the top of the drying tower 1; a heater 3 is installed on the cover seat 2, and the water outlet pipe 4 of the heater 3 extends into the center of the cover seat 2; a cleaning nozzle 5 is fixed at the bottom of the cover seat 2, and the cleaning nozzle 5 is connected to the water outlet pipe 4 to form a water supply channel. It also includes a centrifugal-driven scrubbing mechanism, which includes a base frame 6, a controllable displacement seat 7, an elastic reset member 8, a mounting frame 9, and multiple scrubbing rods 10. The base frame 6 is fixedly mounted on the rotating device and is located inside the drying tower 1 and below the cleaning nozzle 5. The top surface of the base frame 6 has a slide rail 61 facing the cleaning nozzle 5. The rotating device is used to drive the slide rail 61 to rotate around the cleaning nozzle 5. The controllable displacement seat 7 is slidably connected to the slide rail 61. One end of the seat is connected to the base frame 6 through the elastic reset member 8, and the other end extends toward the inner wall of the drying tower 1 and is fixedly connected to the mounting frame 9. The mounting frame 9 is arranged along the axial direction of the drying tower 1, and multiple scrubbing rods 91 are arranged axially at intervals on the side facing the inner wall. The base frame 6 is provided with an auxiliary limiting component 10, and the controllable displacement seat 7 is provided with a limiting protrusion 74 relative to the auxiliary limiting component 10. The auxiliary limiting component 10 includes a limiting rod 1010 that elastically abuts against the limiting protrusion 74. When the rotating device drives the base frame 6 to rotate, it slides along the slide rail 61 towards the inner wall of the drying tower 1 under the action of centrifugal force, so as to drive the scrubbing rod 91 to press against the inner wall of the drying tower 1, and cause the elastic reset member 8 to stretch and store elastic potential energy. During the sliding process, the limiting protrusion 74 squeezes and passes over the limiting rod 1010, causing the limiting rod 1010 to elastically contract and avoid it. After sliding to the position, the limiting rod 1010 elastically resets and abuts against the limiting protrusion 74 to prevent the controllable displacement seat 7 from retracting. When the base frame 6 stops rotating, the centrifugal force disappears, the elastic reset member 8 releases elastic potential energy to drive the controllable displacement seat 7 to slide and reset in the opposite direction along the slide rail 61, so that the scrubbing rod 91 is separated from the inner wall of the drying tower 1. At the same time, the limiting protrusion 74 squeezes and passes over the limiting rod 1010 again. After resetting, the limiting rod 1010 elastically resets again and abuts against the limiting protrusion 74 to lock the controllable displacement seat 7 in the reset position.

[0021] When the base frame 6 rotates under the drive of the rotating device, the controllable displacement seat 7 slides along the slide rail 61 towards the inner wall of the drying tower 1 under the action of centrifugal force, causing the scrubbing rod 91 to press tightly against the inner wall of the drying tower 1. At the same time, the elastic reset member 8 is stretched and stores elastic potential energy. During the sliding process, the limiting protrusion 74 on the controllable displacement seat 7 squeezes and passes over the limiting rod 1010, causing the limiting rod 1010 to elastically contract and avoid. After the controllable displacement seat 7 slides into place and the scrubbing rod 91 is in contact with the tower wall, the limiting rod 1010 elastically resets and abuts against the corresponding side of the limiting protrusion 74, forming a locking limit on the controllable displacement seat 7, effectively offsetting the retraction pull of the elastic reset member 8 and the vibration interference of equipment operation, preventing the controllable displacement seat 7 from retracting, avoiding the scrubbing rod 91 from loosening and detaching from the tower wall, and ensuring continuous and stable contact during the cleaning operation. When the base frame 6 stops rotating, the centrifugal force disappears, the elastic reset component 8 releases its elastic potential energy and drives the controllable displacement seat 7 to slide and reset in the opposite direction along the slide rail 61. At this time, because the centrifugal and inertial forces of the controllable displacement seat 7 disappear, the reset force of the elastic reset component 8 will exceed the limiting force, dragging the controllable displacement seat 7 to drive the scrubbing rod 91, so that the scrubbing rod 91 is completely separated from the inner wall of the drying tower 1 and maintains a distance. At the same time, the controllable displacement seat 7 will use the limiting protrusion 74 to squeeze and pass over the limiting rod 1010 again during the reset movement, so that the limiting rod 1010 will elastically contract and avoid it again. After the controllable displacement seat 7 is fully reset, the limiting rod 1010 will elastically reset again and resist the limiting protrusion 74, locking the controllable displacement seat 7 in the initial reset position.

[0022] When the equipment performs the above-mentioned work, the heater 3 supplies water to the cleaning nozzle 5 located at the bottom of the cover seat 2 through the water outlet pipe 4. The water inlet pipe at the other end of the heater 3 replenishes the water source. The water flows through the water outlet pipe 4 to each cleaning nozzle 5 and sprays outward, thereby achieving a preliminary spray rinsing operation on the inside of the drying tower 1. The heated water can accelerate the decomposition and cleaning of the residue on the cavity wall of the drying tower 1. At the same time as the above-mentioned conventional spray cleaning, the rotating device (usually driven by a motor) located inside the drying tower 1 and below the cleaning nozzle 5 is started, driving the base frame 6 fixed on it to rotate around the central axis of the drying tower 1. The slide rail 61 on the top surface of the base frame 6 rotates synchronously with the base frame 6. During the rotation of the base frame 6, the controllable displacement seat 7, which is slidably connected inside the slide rail 61, is thrown away in the surrounding direction by centrifugal force, that is, it slides along the slide rail 61 toward the inner wall of the drying tower 1. The centrifugal force generated during rotation causes the controllable displacement seat 7 to move the mounting frame 9 connected to the controllable displacement seat 7 and the multiple scrubbing rods 91 set on the mounting frame 9 toward the inner wall of the tower. Finally, the scrubbing rods 91 are pressed tightly against the inner wall surface of the drying tower 1. As the rotation continues, the scrubbing rods 91 achieve a close-fitting mechanical scrubbing of the inner wall of the drying tower 1. Combined with the spray water flow from the top cleaning nozzle 5, it effectively washes away the material residue and stains attached to the inner wall, improving the uniformity and thoroughness of cleaning.

[0023] During the outward sliding of the controllable displacement seat 7, it pulls the elastic reset member 8 connected between the controllable displacement seat 7 and the base frame 6, causing the elastic reset member 8 to undergo tensile deformation and store elastic potential energy, providing power for subsequent reset actions. When the cleaning operation is completed, the rotating device stops driving, the base frame 6 stops rotating, and the centrifugal force on the controllable displacement seat 7 completely disappears. At this time, the stretched elastic reset member 8 releases its stored elastic potential energy and contracts to reset, pulling the controllable displacement seat 7 in the opposite direction to slide along the slide rail 61 toward the center of the drying tower 1, simultaneously driving the mounting frame 9 and the scrubbing rod 91 to detach from the inner wall of the drying tower 1, so that the scrubbing rod 91 and the inner wall of the tower body maintain a stable gap again. This structure utilizes a dynamic working method of centrifugal force-driven contact and elastic reset for automatic disengagement. This ensures that the scrubbing structure only contacts and adheres to the tower wall during cleaning operations, while maintaining a separation distance from the tower wall during non-cleaning operations such as drying and standby. This effectively avoids the problems of material accumulation, adhesion, and stress deformation damage that can easily occur when the traditional fixed scrubbing structure is in contact with the tower wall for a long time, significantly improving the service life and operational stability of the equipment.

[0024] This cleaner is mounted on the drying tower 1 via a cover seat 2. Through a combined cleaning method of spray rinsing and dynamic mechanical scrubbing, it effectively removes stubborn material clumps and residual stains adhering to the inner wall of the spray drying tower. Compared to single spray cleaning, it can direct water flow over a larger area of ​​the tower wall while simultaneously completing mechanical cleaning. Furthermore, thanks to its adaptive structural design featuring rotational centrifugal contact and automatic reset upon shutdown, the scrubbing rod 91 only contacts the tower wall during cleaning. After cleaning and entering the drying and material preparation phases, the scrubbing rod 91 automatically detaches from the tower wall, maintaining a gap. This completely solves the problem of material accumulation and adhesion / jamming caused by alternating wet and dry conditions in traditional fixed scrubbing structures. Moreover, this adaptive clutch structure effectively avoids hard pulling deformation caused by adhesion resistance during equipment start-up and shutdown, reducing fatigue wear on vulnerable components such as the scrubbing rod and elastic reset parts, ensuring stable long-term equipment operation. This detachable design of the scrubbing rod 91 allows the scrubbing rod 91 to move away from the cavity wall as the cleaning operation stops and the drying operation begins. This prevents residual material from the atomizing nozzle (which is often installed in the drying tower 1 to dry liquid materials, as described in the prior art) from sticking to the cavity wall.

[0025] Specifically, the auxiliary limiting assembly 10 also includes a sleeve 1011 fixed to the side of the base frame 6. One end of the limiting rod 1010 is slidably fitted inside the sleeve 1011. A spring connects the end of the limiting rod 1010 inside the sleeve 1011 to the bottom end of the inner cavity of the sleeve. The other end of the limiting rod 1010 extends out of the sleeve 1011 and is provided with a ball head 1012. The limiting protrusion 1001 is set with an arc-shaped structure, and the arc-shaped sides of the limiting protrusion 1001 are respectively provided with arc-shaped limiting parts corresponding to the sliding direction of the controllable displacement seat 7. The ball head 1012 elastically abuts against the arc-shaped limiting part of the limiting protrusion 74. The auxiliary limiting assembly 10 is a limiting structure of a sleeve mechanism. As shown in the figure, there is one set on each of the front and rear sides of the base frame 6 on the left side, and one set on each of the front and rear sides of the base frame 6 on the right side. The front and rear sides of the two controllable displacement seats 7 are provided with corresponding limiting protrusions 74.

[0026] Specifically, the base frame 6 is arranged transversely inside the drying tower 1 along the radial direction, and its bottom middle position is fixed on the rotating device. The rotating device is located in the center inside the drying tower 1 and is used to drive the base frame 6 to rotate around the central axis of the drying tower 1.

[0027] During operation, the centrally located rotating device provides the rotational driving force, enabling the base frame 6 to continuously rotate around the central axis of the drying tower 1. This centrally located transmission installation structure ensures that the center of rotation of the base frame 6 completely coincides with the center of the drying tower body, ensuring that the rotation trajectory of the base frame 6 is regular and the operation is stable, avoiding swaying or shaking. This allows the subsequent overall scrubbing structure to evenly cover all areas of the inner wall of the tower, ensuring the regularity and comprehensiveness of the overall cleaning operation.

[0028] Specifically, at least two sets of cleaning nozzles 5 are fixed at the bottom of the cover seat 2. The cleaning nozzles 5 are symmetrically distributed on both sides of the water outlet pipe 4 and are connected to the water outlet pipe 4 to form two water supply channels. There are two controllable displacement seats 7. Each controllable displacement seat 7 is equipped with a rod-type wiping mechanism consisting of a mounting frame 9 and a wiping rod 91. The elastic reset element 8 is a spring, whose two ends extend to both sides and are respectively connected to the two controllable displacement seats 7.

[0029] This design enables the equipment to perform simultaneous cleaning on both sides. The elastic reset component 8 is a spring structure, with the spring extending laterally on both sides and its two ends connected to two controllable displacement seats 7 respectively. During the base frame rotation operation, the controllable displacement seats 7 on both sides can simultaneously generate centrifugal sliding motion, achieving simultaneous wall-hugging cleaning on both sides. After the equipment stops, relying on the synchronous rebound reset characteristic of the spring ends, the cleaning mechanisms on both sides can simultaneously detach from the tower wall and return to their original positions, ensuring the consistency and symmetry of the cleaning actions on both sides, further improving the overall cleaning stability and uniformity of the machine.

[0030] Specifically, the end of the controllable displacement seat 7 away from the elastic reset member 8 is connected to a collecting rod 71. The collecting rod 71 extends horizontally along the slide rail 61 and passes through to the end of the base frame 6 to connect to the corresponding mounting frame 9. A water channel 72 is opened at the top of the collecting rod 71. The opening of the water channel 72 faces upward to collect the water sprayed from the cleaning nozzle 5. One end of the water channel 72 reaches the controllable displacement seat 7, and the other end goes straight through to the side of the mounting frame 9 where the scrubbing rod 91 is installed, so as to send the collected water to the scrubbing rod 91.

[0031] A water channel 72 is provided on the top side of the collecting rod 71. The water channel 72 adopts an upward-opening trough structure, which can directly receive the cleaning water sprayed down from the cleaning nozzle 5 above. The water channel 72 is arranged along the length of the collecting rod 71, with one end extending to the position of the controllable displacement seat 7 and the other end directly connecting to the side wall of the mounting bracket 9 where the scrubbing rod 91 is installed. This allows the received cleaning water to be continuously guided and transported to the area of ​​the scrubbing rod 91 along the water channel 72. Through this guiding structure, the sprayed water can be accurately gathered and guided to the scrubbing rod 91, allowing the scrubbing rod 91 to continuously operate with water during the scrubbing process against the tower wall. This promotes the full mixing and wetting of water among multiple scrubbing rods 91, reduces water waste, effectively improves the wetness of the scrubbing area, enhances the coordination effect of mechanical scrubbing and water rinsing, and further improves the cleanliness of the inner wall of the tower.

[0032] Specifically, the wiping rods 91 are arranged sequentially along the height direction of the mounting frame 9, and the wiping rods 91 are arranged in multiple rows at intervals along the rotation direction of the mounting frame 9.

[0033] During the actual cleaning process, the water conveyed by the water channel 72 can fully saturate each row of scrubbing rods 91. The multiple rows of spaced scrubbing rods 91 can effectively retain and mix the water, forming a continuous water film between the rods. In conjunction with the rotational movement of the mounting frame 9, the multi-layer scrubbing structure can repeatedly scrub the inner wall of the tower, which can not only gradually wash away and peel off the attached material residue, but also continuously soften stubborn stains by relying on the wetting effect of the water film of the multiple rows of rods, greatly improving the uniformity and thoroughness of scrubbing.

[0034] Specifically, the scrubbing rod 91 is made of soft polyurethane material, which has excellent hydrophilic, water-retaining, and water-melting properties. The end face of the mounting bracket 9 for mounting the scrubbing rod 91 is a slope 92, which is inclined from top to bottom towards the periphery of the drying tower 1. This material itself has excellent hydrophilic, water-retaining, and water-melting capabilities, and the surface can adhere to the cleaning water for a long time without easily dripping or running away. It can work with the multi-row rod structure to continuously gather water and form a stable water film layer, ensuring that the wall surface is always moist during the scrubbing process, thus helping to improve the stain removal effect. The sloped structure of the end face of the mounting bracket 9 for mounting the scrubbing rod 91 can follow the water flow direction, allowing the water delivered by the water channel 72 to be evenly distributed to each scrubbing rod 91 along the slope, further optimizing the water mixing and spreading effect, avoiding water accumulation and local dry scrubbing, and continuously ensuring a wet scrubbing operation throughout the entire area.

[0035] Specifically, the base frame 6 has a cuboid structure with a slide rail 61 on its top surface. The width of the slide rail 61 is greater than the outer contour dimension of the cleaning nozzle 5. This structural arrangement ensures that the spray water from the cleaning nozzle 5 can completely cover the area where the slide rail 61 is located, preventing water intake obstruction or spray misalignment due to the limited width of the slide rail 61. This maximizes the collection rod 71 and water channel 72 on the slide rail 61 to fully receive the spray water, ensuring the continuity of water intake, water guidance, and wet scrubbing. To increase the rinsing area of ​​the drying tower 1 chamber wall and improve cleaning efficiency, the cleaning nozzle 5 uses a four-position rotating nozzle or spray nozzle to spray high-pressure water to thoroughly rinse the inner wall of the tank, increasing the rinsing range and achieving rapid and efficient cleaning of the tank. In addition, ... Figure 6 As shown, a nozzle is also provided in the center of the cleaning nozzle 5 to directly spray water into the water channel 72 on the top side of the collection rod 71, directing water to the scrubbing rod 91, achieving a spatial spraying effect and improving rinsing efficiency.

[0036] Specifically, the top of the controllable displacement seat 7 is an inclined surface, which is set obliquely downward towards the slide rail 61. When the cleaning nozzle 5 sprays water downward, the water sprayed onto the top surface of the controllable displacement seat 7 is reduced by using an inclined surface.

[0037] Specifically, rollers 73 are provided on both sides of the controllable displacement seat 7. The rollers 73 roll in contact with the inner walls of both sides of the slide rail 61. When the centrifugal force is generated, the sensitivity of the rollers 73 can ensure that the two controllable displacement seats 7 move in opposite directions to bring the two wiping rods 91 into contact with the cavity wall of the drying tower 1. When the centrifugal force disappears, the sensitivity of the rollers 73, together with the pull-back action of the elastic reset member 8, can ensure that the two controllable displacement seats 7 move towards each other to separate the two wiping rods 91 from the tower wall.

[0038] The above orientation references do not represent the specific orientations of each component in this implementation scheme. This implementation scheme is only for the convenience of describing the scheme and to make relative descriptions based on the orientations of the references. In reality, the specific orientations of each component are based on their actual installation and use, as well as the orientation descriptions that are customary to those skilled in the art. This is hereby stated.

[0039] The specific embodiments described above further illustrate the inventive purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above descriptions are merely specific embodiments of the present invention and are not intended to limit the scope of protection of the present invention. In particular, it should be noted that any modifications, equivalent substitutions, or improvements made by those skilled in the art within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A spray drying tower cleaner, characterized in that, The equipment includes a drying tower (1), the top of which is provided with a cover seat (2); a heater (3) is installed on the cover seat (2), and the water outlet pipe (4) of the heater (3) extends into the center of the cover seat (2); a cleaning nozzle (5) is fixed at the bottom of the cover seat (2), and the cleaning nozzle (5) is connected to the water outlet pipe (4) to form a water supply channel; It also includes a centrifugal drive scrubbing mechanism, which includes a base frame (6), a controllable displacement seat (7), an elastic reset member (8), a mounting frame (9), and multiple scrubbing rods (10). The base frame (6) is fixedly mounted on a rotating device and is located inside the drying tower (1) and below the cleaning nozzle (5). The top surface of the base frame (6) is provided with a slide rail (61) facing the cleaning nozzle (5). The rotating device is used to drive the slide rail (61) to rotate around the cleaning nozzle (5). The controllable displacement seat (7) is slidably connected to the slide rail (61). One end of the seat is connected to the base frame (6) through the elastic reset member (8), and the other end extends toward the inner wall of the drying tower (1) and is fixedly connected to the mounting frame (9). The mounting frame (9) is arranged along the axial direction of the drying tower (1), and multiple scrubbing rods (91) are arranged axially at intervals on the side facing the inner wall. The base frame (6) is provided with an auxiliary limiting component (10), and the controllable displacement seat (7) is provided with a limiting protrusion (74) relative to the auxiliary limiting component (10). The auxiliary limiting component (10) includes a limiting rod (1010) that elastically abuts against the limiting protrusion (74). When the rotating device drives the base frame (6) to rotate, it slides along the slide rail (61) towards the inner wall of the drying tower (1) under the action of centrifugal force, so as to drive the scrubbing rod (91) to press against the inner wall of the drying tower (1) and cause the elastic reset member (8) to stretch and store elastic potential energy; during the sliding process, the limiting protrusion (74) squeezes and passes over the limiting rod (1010), causing the limiting rod (1010) to elastically contract and avoid, and after sliding to the position, the limiting rod (1010) elastically resets and abuts against the limiting protrusion (74). To prevent the controllable displacement seat (7) from retracting; when the base frame (6) stops rotating, the centrifugal force disappears, and the elastic reset member (8) releases elastic potential energy to drive the controllable displacement seat (7) to slide back along the slide rail (61) to reset, so that the scrubbing rod (91) is separated from the inner wall of the drying tower (1), and at the same time the limiting protrusion (74) squeezes and passes the limiting rod (1010) again. After reset, the limiting rod (1010) is elastically reset again and abuts against the limiting protrusion (74) to lock the controllable displacement seat (7) in the reset position.

2. The spray drying tower cleaner according to claim 1, characterized in that, The auxiliary limiting component (10) also includes a sleeve (1011) fixed to the side of the base frame (6). One end of the limiting rod (1010) is slidably fitted inside the sleeve (1011). A spring is connected between the end of the limiting rod (1010) inside the sleeve (1011) and the bottom end of the inner cavity of the sleeve. The other end of the limiting rod (1010) extends out of the sleeve (1011) and is provided with a limiting protrusion (1001). The limiting protrusion (1001) is set as an arc-shaped structure, and the arc-shaped limiting parts are respectively provided on both sides of the limiting protrusion (1001) corresponding to the sliding direction of the controllable displacement seat (7). The ball head (1012) elastically abuts against the arc-shaped limiting part of the limiting protrusion (74).

3. The spray drying tower cleaner according to claim 2, characterized in that, The base frame (6) is arranged laterally in the drying tower (1) along the radial direction. Its bottom middle position is fixed on the rotating device. The rotating device is located in the center of the drying tower (1) and is used to drive the base frame (6) to rotate around the central axis of the drying tower (1).

4. The spray drying tower cleaner according to claim 3, characterized in that, At least two sets of cleaning nozzles (5) are fixed at the bottom of the cover seat (2). The cleaning nozzles (5) are symmetrically distributed on both sides of the water outlet pipe (4) and simultaneously connected to the water outlet pipe (4) to form two water supply channels. There are two controllable displacement seats (7). Each controllable displacement seat (7) is provided with a rod-type wiping mechanism consisting of the mounting frame (9) and the wiping rod (91). The elastic reset member (8) is a spring, with its two ends extending to both sides and respectively connected to the two controllable displacement seats (7).

5. The spray drying tower cleaner according to claim 4, characterized in that, The controllable displacement seat (7) is connected to a collecting rod (71) at one end away from the elastic reset member (8). The collecting rod (71) extends horizontally along the slide rail (61) and passes through to the end of the base frame (6) to connect to the corresponding mounting frame (9). A water channel (72) is provided at the top of the collecting rod (71). The opening of the water channel (72) faces upward to collect the water sprayed from the cleaning nozzle (5). One end of the water channel (72) reaches the controllable displacement seat (7), and the other end goes straight to the side of the mounting frame (9) where the scrubbing rod (91) is installed, so as to send the collected water to the scrubbing rod (91).

6. The spray drying tower cleaner according to claim 5, characterized in that, The scrubbing rods (91) are arranged sequentially along the height direction of the mounting frame (9), and the scrubbing rods (91) are arranged in multiple rows at intervals along the rotation direction of the mounting frame (9).

7. The spray drying tower cleaner according to claim 6, characterized in that, The scrubbing rod (91) is made of soft polyurethane material and has good hydrophilic water retention and water storage and dissolution properties; the end face of the mounting bracket (9) on which the scrubbing rod (91) is mounted is a slope (92), which is inclined from top to bottom toward the periphery of the drying tower (1).

8. The spray drying tower cleaner according to claim 7, characterized in that, The base frame (6) has a cuboid structure, and the top surface is provided with the slide rail (61), and the width of the slide rail (61) is greater than the outer contour dimension of the cleaning nozzle (5).

9. The spray drying tower cleaner according to claim 8, characterized in that, The top of the controllable displacement seat (7) is an inclined surface, which is set obliquely downward toward the slide rail (61).

10. The spray drying tower cleaner according to claim 9, characterized in that, The controllable displacement seat (7) is provided with rollers (73) on both sides, and the rollers (73) make rolling contact with the inner walls of both sides of the slide rail (61).

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