Truss type double-scraper mud scraper

Abstract

The invention provides a truss type double-scraper mud scraper. Comprising a guide rail fixedly arranged at the top of a sedimentation tank and a truss vehicle movably arranged on the guide rail. The sludge scraping device has the advantages of high sludge scraping efficiency, high adaptability, stable operation, low noise, safety, low operation and maintenance cost and the like, effectively solves the problems of low efficiency, easiness in damage, frequent manual intervention and the like of traditional sludge scraping equipment in the steel slag sedimentation tank, and remarkably improves the automation level and production continuity of dredging operation.

Description

Technical Field

[0001] This invention relates to the field of sludge removal technology for steel slag sedimentation tanks, and in particular to a truss-type double-scraper sludge scraper. Background Technology

[0002] Because steel slag particles are heavy and prone to caking, and the sedimentation tank floor is uneven, conventional sludge removal equipment such as scrapers is inefficient during operation. The equipment generates significant noise from scraping against the ground and struggles to effectively remove the settled steel slag sludge. As the slag sludge accumulates, the water becomes turbid, making it difficult to observe the interior of the sedimentation tank. The original single-track scraper device is prone to colliding with the sidewalls of the sedimentation tank during its return lift, easily causing equipment damage and increasing maintenance costs and downtime.

[0003] To address these issues, the current common approach is to mechanically limit the sludge scraper and add a temporary scraper at the rear of the scraping device to prevent collisions with the sidewalls of the sedimentation tank during scraping. After a period of production, heavy machinery such as excavators is used to manually clean the areas of the sedimentation tank that were not scraped. However, this method is not only time-consuming and labor-intensive but also poses certain safety risks. Furthermore, frequent shutdowns for cleaning severely impact production continuity and efficiency, becoming a major bottleneck restricting steel production enterprises from improving their economic benefits.

[0004] Therefore, effectively managing and cleaning steel slag sludge in sedimentation tanks, minimizing the impact on production equipment, reducing maintenance costs, and improving production efficiency have become urgent problems to be solved. In response to this situation, it is necessary to explore more efficient and environmentally friendly solutions to address the various challenges posed by steel slag sludge treatment. Summary of the Invention

[0005] The present invention aims to solve at least one of the technical problems existing in the prior art, and proposes a truss-type double scraper sludge scraper.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A truss-type double-scraper sludge scraper includes a guide rail fixedly mounted on the top of a sedimentation tank and a gantry movably mounted on the guide rail. The gantry includes a truss movably mounted on the guide rail via a set of driving wheels and a set of driven wheels. A transmission device for driving multiple sets of driving wheels is located at the rear of the truss. A double-scraper sludge scraping device is located at the bottom of the truss via a lifting device. The transmission device includes a reduction motor located at the rear top of the truss. A small sprocket is mounted on the output shaft of the reduction motor. The small sprocket is connected to a driven sprocket set via a chain. Both ends of the driven sprocket set are connected to a drive shaft via couplings. The end of the drive shaft is connected to the... The active wheel assembly includes a driven wheel, a driven shaft, and a bearing housing. The driven wheel is connected to the truss via the bearing housing. The lifting device includes a winch located at the front of the top of the truss. The drum of the winch is connected to the double-scraper sludge scraping device via a winch transmission device. The double-scraper sludge scraping device includes swing arms symmetrically hinged to the bottom of the truss. The two swing arms are connected by a support frame. A scraper device is fixedly installed at the bottom of the ends of the two swing arms. The scraper device includes an upper support. A lower support is correspondingly installed at the bottom of each of the two upper supports. A support rod is correspondingly installed at the bottom of each of the two lower supports. Scrapers are correspondingly installed on both the front and rear sides of the support rod.

[0007] Preferably, the winch transmission device includes a wire rope wound on the drum, the movable end of the wire rope being connected to the beginning end of a steel chain, and the end of the steel chain being hinged to a support frame.

[0008] Preferably, a limit block is provided on the lower support.

[0009] Preferably, the upper support and the lower support are connected by a pin.

[0010] Preferably, hard rubber plates are provided on the opposite sides of both scrapers.

[0011] Preferably, the hard rubber sheet is made of wear-resistant fabric-reinforced rubber material.

[0012] The beneficial effects of this invention are as follows: This invention specifically addresses various industry pain points in dredging steel slag sedimentation tanks, comprehensively improving the overall efficiency of dredging operations. It not only significantly increases scraping efficiency and eliminates dredging dead zones, but also employs a symmetrical double-scraper design, allowing scraping operations to be performed during the reciprocating movement of the gantry crane. Compared to traditional single-scraper equipment, this greatly improves operational efficiency. Furthermore, the adaptive structure of the swing arm hinge and the rotating lower support pin, combined with the elastic fit of the hard rubber plate, can adapt to the uneven bottom of the steel slag sedimentation tank, effectively solving the problems of incomplete scraping caused by steel slag caking and bottom slope, achieving full-area coverage dredging of the sedimentation tank bottom. This invention also boasts high equipment operational stability, high transmission efficiency, and low energy consumption. The transmission device uses a geared motor combined with a sprocket and chain. The chain drive system boasts high transmission efficiency and low energy loss. The symmetrical design of the drive and driven wheel sets ensures synchronous rotation of all four sets, resulting in uniform power distribution and effectively preventing rail jamming and uneven wear. The coupling acts as a buffer, damping agent, and compensation for shaft displacement, ensuring smooth power transmission and reducing vibration and impact during equipment operation. The lifting device employs a combination of winch, wire rope, and chain transmission, providing rapid lifting response and stable tension, preventing sudden drops and jamming of the sludge scraping device. Furthermore, the winch and geared motor are distributed at the front and rear of the truss top, ensuring even weight distribution and reducing center of gravity shift, further enhancing the stability of the gantry crane. This invention also offers strong adaptability, specifically addressing the challenges of sludge removal from steel slag sedimentation tanks. Due to the characteristics of heavy particles and easy caking, the overall structure of the equipment has a strong load-bearing capacity. The combination design of the scraper and hard rubber plate can withstand long-term friction from the sludge at the bottom of the pool. The hard rubber plate is made of wear-resistant fabric-reinforced rubber material, which not only compensates for the rigidity of the scraper, but also avoids direct hard contact between the scraper and the concrete structure at the bottom of the pool. This solves the problems of high noise and easy damage caused by the scraping of traditional equipment against the bottom of the pool. It can be adapted to the harsh working environment of steel slag sludge. This invention can also significantly reduce operation and maintenance costs and improve production continuity. The sprockets, chains and other components of the transmission device are standardized parts. The double scraper sludge scraping device adopts a modular and hinged design. The pin connection of the upper / lower support and the easy disassembly and assembly structure of the scraper and support rod facilitate the replacement of vulnerable parts and equipment maintenance. Moreover, the equipment can achieve self-cleaning. Automated continuous sludge scraping eliminates the need for manual cleaning using heavy machinery such as excavators, which helps solve the problems of time-consuming, labor-intensive, and frequent downtime associated with traditional dredging methods. This reduces equipment maintenance costs and downtime, ensuring the continuity of production for steel production enterprises. The automation level of the equipment in this invention is greatly improved, effectively reducing manual intervention. Through the uniform speed control of the transmission device and the precise lifting adjustment of the lifting device, automated operation of the sludge scraping operation can be achieved. Only a small amount of manpower is needed for equipment start-up, shutdown, and daily inspection, significantly reducing the intensity of manual operation. Furthermore, the protective structures such as limit blocks and hard rubber plates can effectively prevent collisions between the sludge scraping device and the side walls and support frames of the sedimentation tank, reducing the equipment failure rate and further reducing the need for manual intervention.This invention significantly improves operational safety, completely eliminating the risks associated with manual cleaning. The equipment automates sedimentation tank dredging, replacing the traditional method of manual entry into the sedimentation tank with heavy equipment. This eliminates safety hazards during manual cleaning. Furthermore, the equipment's structural connections are robust; the axial limiting structure of the pins and the high-strength tensile design of the steel chains ensure structural safety during operation, preventing component detachment, breakage, and other safety accidents. In addition, the multiple protective designs of this invention effectively extend the equipment's service life. Hard rubber plates provide double protection for the scraper and sedimentation tank body, reducing scraper wear and concrete scratch damage. Limiting blocks restrict the displacement of the scraper and support rods, preventing collision damage between equipment components. The buffer and vibration damping design of the coupling and chain drive reduces wear on transmission components. The combined application of these protective structures significantly extends the overall service life of the equipment and its vulnerable parts, further reducing the equipment's total lifespan cost. Attached Figure Description

[0013] Figure 1 This is a front view structural diagram of the present invention; Figure 2 This is a side view of the structure of the present invention; Figure 3 This is a side view of the dual-scraper mud scraping device of the present invention during use and when it is retracted; Figure 4 This is a schematic diagram of the transmission device of the present invention; Figure 5 This is a schematic diagram of the structure of the drive train of the present invention; Figure 6 This is a schematic diagram of the lifting device of the present invention. Figure 7 This is a schematic diagram of the structure of the double-scraper sludge scraping device of the present invention; Figure 8 This is a schematic diagram of the installation structure of the scraper of the present invention.

[0014] Reference numerals: 1: gantry crane, 2: guide rail, 3: sedimentation tank, 11: transmission device, 12: driven wheel set, 13: truss, 14: lifting device, 15: double scraper sludge scraping device; 111: Drive wheel assembly; 112: Coupling; 113: Drive shaft; 114: Driven sprocket assembly; 115: Chain; 116: Small sprocket; 117: Gear motor. 121: Bearing housing; 122: Driven wheel; 123: Driven shaft; 141: Winch; 142: Wire rope; 143: Drum; 144: Sensor; 145: Steel chain; 151: Swing arm; 152: Support frame; 153: Scraper device; 1531: Upper support, 1532: Lower support, 1533: Scraper, 1534: Hard rubber plate, 1535: Pin, 1536: Limiting block, 1537: Support rod. Detailed Implementation

[0015] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0016] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for 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 the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0017] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" 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.

[0018] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8As shown, the system includes a guide rail 2 fixedly mounted on the top of the sedimentation tank 3, and a gantry 1 movably mounted on the guide rail 2. The extension direction of the guide rail 2 is consistent with the length direction of the sedimentation tank 3. This arrangement, through the cooperation between the gantry 1 and the guide rail 2, lays the foundation for the double-scraper sludge scraping device 15 to clean the sludge in the sedimentation tank 3, ensuring that the double-scraper sludge scraping device 15 can operate along a preset path at the top of the sedimentation tank 3, thereby achieving full coverage sludge scraping of the bottom of the sedimentation tank 3. The guide rail 2 provides stable support and guidance for the gantry 1, dispersing the weight and operating resistance of the gantry 1 and the double-scraper sludge scraping device 15, reducing the swaying amplitude of the gantry 1 during operation, and improving the overall operational stability of the equipment. The gantry 1 includes a truss 13 movably mounted on the guide rail 2 via a drive wheel set 111 and a driven wheel set 12. A transmission device 11 for driving the drive wheel set 111 is provided at the rear of the truss 13, and the bottom of the truss 13 is connected by a lifting device. 14 is equipped with a double-scraper sludge scraping device 15. This device uses the truss 13 as the main load-bearing structure of the gantry 1, providing the installation foundation and structural support for the transmission device 11, the lifting device 14 and the double-scraper sludge scraping device 15. The transmission device 11 transmits power to the drive wheel set 111 and the driven wheel set 12, thereby driving the entire truss 13 to move along the guide rail 2. The lifting device 14 is fixedly connected to the truss 13. Through its own power extension and retraction, it realizes the lifting and lowering control of the double-scraper sludge scraping device 15. During sludge scraping operation, the lifting device 14 lowers the double-scraper sludge scraping device 15 to the bottom of the sedimentation tank 3. After the operation is completed, it is lifted to the surface of the tank. The movement of the truss 13 and the lifting and lowering action of the lifting device 14 cooperate with each other to realize the spatial position adjustment of the double-scraper sludge scraping device 15. At the same time, it can greatly reduce manual intervention, which is conducive to the automated operation of the equipment, and thus can improve the stability and reliability of the equipment operation to a certain extent.The transmission device 11 includes a geared motor 117 located at the rear top of the truss 13. A small sprocket 116 is mounted on the output shaft of the geared motor 117. The small sprocket 116 is connected to a driven sprocket assembly 114 via a chain 115. Both ends of the driven sprocket assembly 114 are connected to a drive shaft 113 via couplings 112. The end of the drive shaft 113 is connected to a drive wheel assembly 111 via a coupling 112. This configuration provides a power source for the transmission device 11 through the geared motor 117, converting electrical energy into power. The mechanical energy is output as rotational power, which is transmitted to the driving wheel assembly 111 through the driven sprocket assembly 114. This drives the driving wheel assembly 111 to rotate around its own axis. Simultaneously, because the truss 13 is a rigid structure, the rotation of the driving wheel assembly 111 will cause the truss 13 to move as a whole, which in turn will cause the driven wheel assembly 12 to rotate synchronously. Ultimately, the driving wheel assembly 111 and the driven wheel assembly 12 will roll synchronously along the guide rail 2, and the entire gantry 1 will move smoothly. The coupling 112 can also play a role in buffering and vibration reduction during this process. The coupling 117 compensates for the relative displacement of the two shafts, ensuring smooth power transmission between the drive shaft 113 and the drive wheel set 111. Simultaneously, the speed of the reduction motor 117 can be adjusted as needed to achieve uniform speed movement of the gantry crane 1, preventing incomplete mud scraping or mud accumulation. The drive wheel set 111 and driven wheel set 12 are symmetrically arranged on the gantry 13, ensuring even power distribution and guaranteeing the horizontal movement of the gantry crane 1, preventing rail jamming and uneven wear. The coupling 112 can buffer impact loads. It reduces transmission wear, compensates for shaft displacement, and improves operational reliability. Moreover, the above power transmission path is clear and has low loss, which improves transmission efficiency and reduces equipment energy consumption, making it more practical. The driven wheel set 12 includes a driven wheel 122, a driven shaft 123 and a bearing seat 121. The driven wheel 122 is connected to the truss 13 through the bearing seat 121. The structure of the driving wheel set 111 is similar to that of the driven wheel set 12, and will not be described in detail here. This setting lays the foundation for the stable movement of the gantry 1 on the guide rail 2.The lifting device 6 includes a winch 1411 located at the front top of the truss 13. The drum 143 of the winch 1411 is connected to a double-scraper mud scraping device 15 via a winch transmission device. A sensor 144 is mounted on the side of the truss 13 opposite to the drum 143. The sensor 144 monitors the rotation angle of the output shaft of the winch 1411 and transmits the monitored data to an external control system in the form of an electrical signal. The control system converts this data into the number of turns of the drum 143 (the length of the wire rope 142), achieving precise lifting control of the double-scraper mud scraping device 15. This setup uses the sensor 144 to monitor the rotation angle of the output shaft of the winch 1411, and the winch 1411 acts as a lifting device... Under the power core of device 14, the external control system causes the drum 143 to rotate in both directions. The rotation of the drum 143 drives the wire rope 142 to retract and extend. After receiving the lifting command, the external control system drives the winch 1411 to rotate forward, and the drum 143 retracts the wire rope 142. The steel chain 145 applies an upward pulling force to the support frame 152, and the swing arm 151 rotates upward around the bottom hinge point of the truss 13, driving the double scraper sludge scraping device 15 to lift. After receiving the lowering command, the external control system drives the winch 1411 to rotate in reverse. When the drum 143 rotates in reverse, the wire rope 142 is released, and the double scraper sludge scraping device 15 swings downward under its own gravity until it reaches the hard rubber plate 1534. The hoist 143 is attached to the bottom of sedimentation tank 3. Sensor 144 monitors the rotation angle of the drum 143. The drum 143 releases the wire rope 142, and the double-scraper sludge scraping device 15 swings downwards around the hinge point of the swing arm 151 under its own weight until the hard rubber plate 1534 is attached to the bottom of sedimentation tank 3. During the above lifting or lowering process, sensor 144 monitors the rotation angle of the output shaft of the winch 1411 to ensure the lifting or lowering height, precisely controlling the length of the lifting device 14, thereby achieving precise adjustment of the lifting height of the sludge scraping device. The entire process is simple to operate and operates on a simple principle. By providing a stable lifting force, the sludge scraping device is smoothly lifted and lowered, avoiding sudden drops and jamming. The winch 1411 is mounted on truss 13. The top front side is distributed with the reduction motor 117, which makes the weight of the truss 13 even, reduces the center of gravity offset of the truss 1, and improves the stability of operation. The lifting height of the sludge scraping device can be precisely controlled by the number of rotations of the drum 143, which is suitable for different sedimentation tank 3 depths and sludge accumulation heights. The equipment has strong adaptability. The winch 1411 and the winch transmission device have a simple structure and direct power transmission. The lifting action is fast and the position of the double scraper sludge scraping device 15 can be quickly switched to improve the efficiency of sludge scraping operation. At the same time, the double scraper sludge scraping device 15 can be lifted by the lifting device 14 to facilitate its inspection, maintenance or replacement, and can avoid unnecessary wear on the double scraper sludge scraping device 15 when it is not working.The double-scraper sludge scraping device 15 includes two swing arms 151 symmetrically hinged to the bottom of the truss 13. The two swing arms 151 are connected by a support frame 152. A scraper device 153 is fixedly mounted at the bottom of both swing arms 151. The scraper device 153 includes an upper support 1531, with a lower support 1532 corresponding to the bottom of each of the two upper supports 1531. A support rod 1537 is mounted at the bottom of both lower supports 1532. Scrapers 1533 are mounted on both the front and rear sides of the support rod 1537. This arrangement allows the sludge scraping device to rise and fall as a whole by swinging the two swing arms 151 up and down with the bottom of the truss 13 as the hinge point. The support frame 152 connects the two arms to ensure synchronized swinging and prevent tilting. The upper support 1531 moves synchronously with the swing arms 151. The lower support 1532 cooperates with the upper support 1531 to provide stable support for the support rod 1537. The support rod 1537 serves as the scraper 1537. The fixed base 533 drives the front and rear scrapers 1533 to move horizontally with the gantry crane 1 to complete sludge scraping. When the gantry crane 1 moves back and forth, the front and rear scrapers 1533 on the support rod 1537 can scrape off the sludge separately, realizing bidirectional sludge scraping. The whole process is simple in principle. Through the gravity of the double scraper sludge scraping device 15, it can effectively remove the sludge and sediment at the bottom of the sedimentation tank 3. The symmetrically hinged swing arm 151 can swing flexibly, adapting to the slope and unevenness of the tank bottom, ensuring that the scraper 1533 fits the tank bottom and eliminates dead angles in sludge scraping. The support frame 152 ensures that the double swing arms 151 move synchronously, maintains the horizontality of the device, and avoids uneven wear of the scraper 1533 on one side and incomplete sludge scraping. The layered structure of the upper and lower supports makes it easy to replace the support rod 1537 and the scraper 1533, reducing the difficulty of operation and maintenance. The support rod 1537 provides stable support for the double scraper 1533. The bidirectional scraper 1533 design realizes the reciprocating sludge scraping of the gantry crane 1, which greatly improves the operation efficiency.

[0019] like Figure 1 , Figure 2 , Figure 3 and Figure 6As shown, the winch transmission device includes a wire rope 142 wound on a drum 143. The surface of the drum 143 of the winch 1411 has spiral rope grooves. The wire rope 142 is wound orderly within the rope grooves of the drum 143 to prevent tangling and knotting. The movable end of the wire rope 142 is connected to the beginning of a steel chain 145, and the end of the steel chain 145 is hinged to a support frame 152. Specifically, the fixed end of the wire rope 142 is connected to the drum 1411. The three-sided wall is locked and fixed. The movable end extends downward and is fastened to the beginning of the steel chain 145 through a cable clamp. The steel chain 145 is made of high-strength galvanized steel chain. Its end is hinged to the middle of the support frame 152 of the double scraper sludge scraping device 15 through a hinge lug, so that the steel chain 145 and the support frame 152 can rotate relative to each other. This setting allows the drum 143 to wind up the wire rope 142 when the winch 141 is rotating forward, and the wire rope 142 pulls the steel chain 145 upward. The lifting mechanism causes the support frame 152 and swing arm 151 to rotate upwards around the hinge point, thus retracting the double-scraper sludge scraping device 15. When the winch 141 reverses, the drum 143 releases the wire rope 142, and the double-scraper sludge scraping device 15 swings downwards under its own weight. The steel chain 145 then lowers, allowing the double-scraper sludge scraping device 15 to fall and complete the sludge scraping preparation. The combination of the wire rope 142 and the high-strength steel chain 145 provides high tensile strength, capable of withstanding the weight of the double-scraper sludge scraping device 15 and the operating tension, preventing transmission component breakage and improving operational safety. The steel chain 145 is hinged to the support frame 152, adapting to the small swing of the double-scraper sludge scraping device 15, preventing hard pulling and jamming, and reducing stress damage. The wire rope 142 is wound around the rope groove drum 143, preventing entanglement and ensuring smooth retraction and release, thus improving operational stability. This transmission method is flexible, has small gaps, and can precisely control the lifting height, adapting to the operational needs of different sedimentation tanks.

[0020] like Figure 2 , Figure 3 , Figure 7 and Figure 8 As shown, a limiting block 1536 is provided on the lower support 1532. The limiting block 1536 is a steel block structure that forms an integrated structure with the lower support 1532. This setting can limit the support rod 1537 at the bottom of the lower support 1532 in the front and rear directions after the double scraper sludge scraping device 15 is assembled. This can, to a certain extent, prevent the scraper 1533 from rotating due to gravity during the lifting process and colliding with the crossbeam at the bottom of the support frame 152, thus avoiding equipment damage. At the same time, it allows the scraper 1533 to swing slightly during the movement of the gantry 1 to scrape sludge. This can effectively limit the front and rear displacement of the support rod 1537 and the scraper 1533 caused by the lateral resistance of the sludge, and always maintain the working position accuracy of the support rod 1537 and the scraper 1533, avoiding sludge scraping deviation caused by displacement. As a result, this gantry 13 type double scraper 1533 sludge scraper can meet the requirements of working on various uneven ground surfaces.

[0021] like Figure 2 , Figure 3 , Figure 7 and Figure 8 As shown, the upper support 1531 and the lower support 1532 are connected by a pin 1535. The pin 1535 passes through the matching pin holes of the upper and lower supports 1532 to achieve a hinge connection. This setting allows the lower support 1532 to rotate slightly around the pin 1535. When scraping sludge, it can rotate adaptively with the slope and unevenness of the pool bottom, ultimately driving the scraper 1533 to fit tightly against the pool bottom. The axial limiting structure of the pin 1535 can prevent the connection from falling off, ensuring the stable connection of the upper and lower supports 1532. This hinge structure not only improves the thoroughness of sludge scraping through the adaptive rotation of the lower support 1532, but also facilitates the maintenance and replacement of vulnerable parts due to the simple connection structure of the pin 1535 and convenient disassembly and assembly. At the same time, the high shear strength of the pin 1535 can withstand the resistance of sludge scraping, avoid the breakage of the connection, and improve the operational reliability of the overall structure.

[0022] like Figure 2 , Figure 3 , Figure 7 and Figure 8 As shown, a hard rubber plate 1534 is correspondingly provided on the opposite sides of the two scrapers 1533. The hard rubber plate 1534 is made of wear-resistant fabric-reinforced rubber material. This arrangement allows the hard rubber plate 1534 to first contact the bottom of the sedimentation tank 3 during sludge scraping operations. Its elasticity conforms to the slight irregularities of the tank bottom and guides the scrapers 1533 during sludge scraping. The wear-resistant fabric-reinforced rubber material combines elasticity and structural strength, capable of withstanding long-term friction from the sediment at the bottom of the tank. It also prevents the scrapers 1533 from directly contacting the concrete structure at the bottom of the tank. The 33 blade and the pool body form a double protection. This design not only makes up for the rigidity of the scraper blade 1533 with its elastic fit and eliminates the dead angles for scraping mud at the uneven bottom of the pool, but also greatly extends the service life of the hard rubber plate 1534 and reduces the operation and maintenance costs due to the excellent wear resistance of the wear-resistant fabric-reinforced rubber. At the same time, it effectively reduces the wear of the scraper blade 1533 and the damage to the concrete of the pool body, and helps to reduce the noise generated during the mud scraping process. The fabric-reinforced structure further enhances the tear resistance and impact resistance of the hard rubber plate 1534, making it suitable for harsh mud scraping operation environments.

[0023] The specific operating principle is as follows: Before starting the equipment, first confirm that there are no debris on the top guide rail of the sedimentation tank and that all transmission components are properly connected. Then, control the winch on the front side of the top of the truss to reverse through the external control system. The drum releases the wire rope and drives the steel chain to lower. Under its own gravity, the double scraper sludge scraping device swings downward around the hinge point between the swing arm and the truss until the hard rubber plate at the bottom of the scraper is in contact with the bottom of the sedimentation tank, completing the position adjustment for sludge scraping. During this process, the lowering height of the sludge scraping device can be precisely adjusted by controlling the number of rotations of the drum, thus adapting to different tank depths and sludge accumulation thicknesses. After the sludge scraping device is in place, start the winch on the rear side of the top of the truss. The geared motor's output shaft drives a small sprocket to rotate, transmitting power through a chain to the driven sprocket assembly, which in turn drives the transmission shaft to rotate. This, in turn, drives the drive wheel assembly to roll along the guide rail via a coupling, simultaneously causing the driven wheel assembly to rotate synchronously. This enables the gantry crane to move smoothly along the length of the sedimentation tank. When the gantry crane moves forward, the scraper on the front side of the support rod removes sludge and steel slag from the bottom of the tank. When moving in the reverse direction, the scraper on the rear side of the support rod continues to scrape sludge, achieving bidirectional sludge scraping during reciprocating movement and significantly improving work efficiency. During the sludge scraping process, the uneven bottom of the sedimentation tank and the slope formed by the hardened steel slag are effectively addressed. As the temperature changes, the lower support can rotate slightly around the pin between the upper and lower supports. Simultaneously, the swing arm can adaptively swing according to the resistance of the tank bottom, ensuring the scraper remains in close contact with the hard rubber plate, eliminating dead zones during sludge scraping. The limiting block on the lower support provides front-to-back constraint on the support rod, preventing large displacement of the scraper due to lateral resistance of the sludge and preventing collisions between the scraper and the support frame beam during small swings, ensuring accurate scraping positioning. After the sludge scraping operation is completed across the entire bottom of the sedimentation tank, the winch is rotated forward via an external control system. The drum winds up the wire rope and pulls the steel chain upwards, causing the steel chain to lift the support... The frame and swing arm rotate upward around the hinge point, raising the double-scraper sludge scraping device above the sedimentation tank surface to avoid wear during non-working conditions. Then, the geared motor is controlled to reverse, driving the gantry crane back to the initial position along the guide rail, completing one sludge scraping operation. During routine equipment inspection, maintenance, or replacement of vulnerable parts, the sludge scraping device can be kept in the raised state with the help of the lifting device, eliminating the need for heavy machinery. Furthermore, the pin connection of the upper and lower supports and the modular design of the scraper and support rod allow for quick disassembly and assembly of related components, facilitating the replacement of worn scrapers, hard rubber plates, and other parts, significantly reducing the difficulty of operation and maintenance.

[0024] Parameter description: All parameter values ​​mentioned in this manual are not subjective assumptions, but rather a comprehensive result of the application scenario's security / efficiency requirements, industry standards and specifications, and industry practice experience thresholds. In actual applications, the parameters will be fine-tuned according to the relevant scenarios.

[0025] The components provided in this invention are only for use in accordance with the structural features of the product. The product will be adjusted and modified after purchase to better match and conform to the technical solution of this invention. It is an optimal application of this technical solution. The product model can be replaced and modified according to the required technical parameters. It is well known to those skilled in the art. Therefore, those skilled in the art can clearly obtain the corresponding usage effect through the technical solution provided in this invention.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; 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 or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A truss-type double-scraper sludge scraper, characterized in that, It includes a guide rail fixedly installed on the top of the sedimentation tank, and a gantry crane movably installed on the guide rail; The gantry includes a truss that is movable on the guide rail via a set of active wheels and a set of driven wheels. A transmission device for driving multiple sets of active wheels is provided on the rear side of the truss. A double scraper mud scraping device is provided at the bottom of the truss via a lifting device. The transmission device includes a geared motor located on the rear side of the top of the truss. A small sprocket is provided on the output shaft of the geared motor. The small sprocket is connected to a driven sprocket assembly via a chain. Both ends of the driven sprocket assembly are connected to a drive shaft via couplings. The end of the drive shaft is connected to the drive wheel assembly via a coupling. The driven wheel assembly includes a driven wheel, a driven shaft, and a bearing housing, and the driven wheel is connected to the truss through the bearing housing; The lifting device includes a winch located on the front side of the top of the truss, and the drum of the winch is connected to the double scraper mud scraping device through the winch transmission device. The dual-scraper sludge scraping device includes swing arms symmetrically hinged to the bottom of the truss. The two swing arms are connected by a support frame. A scraper device is fixedly installed at the bottom of the two swing arms. The scraper device includes an upper support. A lower support is correspondingly installed at the bottom of each of the two upper supports. A support rod is correspondingly installed at the bottom of each of the two lower supports. Scrapers are correspondingly installed on both the front and rear sides of the support rod.

2. The truss-type double-scraper sludge scraper according to claim 1, characterized in that, The winch transmission device includes a wire rope wound on the drum, the movable end of the wire rope being connected to the beginning end of a steel chain, and the end of the steel chain being hinged to a support frame.

3. The truss-type double-scraper sludge scraper according to claim 1, characterized in that, A limit block is provided on the lower support.

4. The truss-type double-scraper sludge scraper according to claim 1, characterized in that, The upper support and the lower support are connected by a pin.

5. The truss-type double-scraper sludge scraper according to claim 1, characterized in that, Hard rubber plates are provided on the opposite sides of both scrapers.

6. The truss-type double-scraper sludge scraper according to claim 5, characterized in that, The hard rubber sheet is made of wear-resistant fabric-reinforced rubber material.

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