Sludge treatment device for construction site

Abstract

The invention belongs to the field of construction site environmental protection equipment, and discloses a construction site sludge treatment device which comprises a support, a processing box is fixedly arranged above the support, a crushing device is fixedly arranged on one side of the upper portion of the processing box, and a stirring device matched with the crushing device is arranged on one side of the inner wall of the processing box. A grinding device is fixedly arranged on the upper portion of the inner wall of the stirring device, a drying box is arranged on the other side of the inner wall of the processing box, and a discharging device is arranged on the upper portion of the drying box in a matched mode. The problems that existing equipment is dispersed in working procedures, incomplete in treatment, high in energy consumption and inconvenient to collect are solved, integrated synchronous operation from pretreatment to forming and recycling of sludge is achieved, and the treatment effect, efficiency and equipment universality are improved.

Description

Technical Field

[0001] This invention relates to the field of environmental protection equipment technology for construction sites, specifically a sludge treatment device for construction sites. Background Technology

[0002] Construction sites generate large amounts of sludge during construction, which contains sand, concrete residue, and large debris. Direct discharge or stockpiling of this sludge not only occupies land resources but also pollutes soil and water bodies, failing to meet environmental protection requirements. Existing sludge treatment devices often suffer from limited functionality and incomplete treatment. Some devices only perform a single crushing or drying process, failing to adequately refine the impurities in the sludge. This results in poor sludge formation, insufficient adhesion, and difficulty in recycling. Furthermore, the independent drive structures for each process in existing devices lead to high energy consumption, and the collection of the treated sludge is inconvenient, affecting overall treatment efficiency and failing to meet the large-scale, high-efficiency sludge treatment needs of construction sites.

[0003] To address the aforementioned issues, this invention presents a sludge treatment device for construction sites that integrates crushing, grinding, mixing, drying, and discharge. By operating multiple processes from a single power source, it improves the thoroughness and efficiency of sludge treatment, simplifies the sludge collection process, and balances environmental friendliness and practicality. Summary of the Invention

[0004] The present invention aims to provide a sludge treatment device for construction sites to solve the problems of existing equipment such as scattered processes, incomplete treatment, high energy consumption, and inconvenient collection, so as to realize the integrated and synchronous operation of sludge from pretreatment to molding and recycling, thereby improving the treatment effect, efficiency and equipment versatility.

[0005] To achieve the above objectives, the present invention provides the following technical solution: The technical solution provided by this invention is: a sludge treatment device for construction sites, including a support frame, a processing box fixedly mounted on the support frame, a crushing device fixedly mounted on one side of the processing box, a stirring device adapted to the crushing device on one side of the inner wall of the processing box, a grinding device fixedly mounted on the upper side of the inner wall of the stirring device, a drying box on the other side of the inner wall of the processing box, and a discharge device adapted to the upper side of the drying box. The various devices work together to complete the entire process of sludge treatment from crushing and refining to drying and shaping.

[0006] Furthermore, the crushing device includes a feed inlet fixedly installed on one side of the upper part of the processing box. The crushing device also includes a crushing motor fixedly installed on the outer wall of the processing box. A drive gear is adapted to the output end of the crushing motor. A drive crushing roller is fixedly installed on one side of the drive gear. A driven gear meshes with one side of the drive gear. A driven crushing roller is fixedly installed on one side of the driven gear. The driven crushing roller and the drive crushing roller are movably installed on the inner wall of the processing box. Two sets of transmission gears are fixedly installed at the other end of the driven crushing roller. The two sets of transmission gears are respectively adapted to a first transmission belt and a second transmission belt. A first transmission gear is adapted to the other end of the second transmission belt. A first bevel gear is installed on one side of the first transmission gear. A second bevel gear meshes with the first bevel gear. A second transmission gear is fixedly installed on one side of the second bevel gear. A third transmission belt is adapted to the surface of the second transmission gear. The crushing device combines crushing and power transmission functions, providing power support for subsequent processes.

[0007] Furthermore, the stirring device includes a stirring box fixedly installed on the inner wall of the processing box. A stirring rod is provided through the axial position of the stirring box, and a stirring gear is provided below the stirring rod. The stirring gear is adapted to be connected to one end of the third transmission belt. A threaded plate is fixedly provided on the surface of the stirring rod, and a protective sleeve is fixedly provided on the outer wall of the stirring rod. A connecting rod is fixedly provided on the lower surface of the stirring rod, and a stirring cylinder that is movably adapted to the protective sleeve is fixedly provided on the surface of the connecting rod. A plurality of stirring blades are evenly provided on the surface of the stirring cylinder, and a scraper is vertically provided at one end of the stirring blades. The scraper contacts the inner wall of the stirring box, which can realize the mixing, homogenization and circulation of sludge, while avoiding sludge clumping and adhesion.

[0008] Furthermore, the grinding device includes a grinding plate fixedly installed on the inner wall of the mixing tank. The surface of the grinding plate is provided with a plurality of grinding teeth. A grinding disc is movably adapted above the grinding plate. A fixing plate is fixedly installed above the grinding disc. The fixing plate is fixedly connected to the protective sleeve. A plurality of grinding grooves adapted to the grinding teeth are opened on the lower surface of the grinding disc. The grinding grooves are in a decreasing groove shape. A grinding inlet is provided at the axial position of the grinding disc, which can realize the gradual refinement of impurities from large to small and improve the sludge forming adhesion.

[0009] Furthermore, the drying chamber is equipped with a heating coil, the inner wall of the processing chamber is equipped with a slide rail, the slide rail is equipped with a slider, and a tilting shaft is rotatably provided above the slider. The tilting shaft is fixedly connected to one end of the bottom of the drying chamber, which can realize the sliding movement of the drying chamber and automatic tilting, which facilitates the collection of shaped sludge.

[0010] Furthermore, the discharge device includes three sets of discharge pipes. One end of each discharge pipe extends through the lower inner wall of the mixing device, and the other end is fixedly installed above the drying chamber. A negative pressure airbag is fixedly installed above the discharge pipe, and a discharge shaft is rotatably installed above the negative pressure airbag. A discharge rod is fixedly installed on the surface of the discharge shaft, and a pressing shaft is fixedly installed at the upper end of the discharge rod. A pressing rod is fixedly installed at the center of the pressing shaft, and a discharge gear is fixedly installed at one end of the pressing rod. The pressing rod and the discharge gear are offset from each other. The discharge gear is adapted to connect with one end of the first transmission belt to realize automatic negative pressure conveying of sludge, synchronized with other processes.

[0011] The beneficial effects of this technical solution are: (1) This invention constructs a single power source hub through a crushing device and adopts a multi-stage structure of gears, transmission belts and bevel gears to synchronously transmit the power of the crushing motor to the grinding device, stirring device and discharge device, so as to realize the simultaneous start and stop of the four major processes of crushing, grinding, stirring and discharge. This completely breaks the limitation of the traditional equipment with multiple motors driving independently, greatly simplifies the equipment structure, and reduces energy consumption and maintenance costs. At the same time, the grinding device and the stirring device form a cycle. The stirring rod drives the threaded plate to transport the sludge upward to the grinding area. After being refined by the decreasing grinding tank, it falls back and is stirred again, forming a closed-loop process of crushing, grinding, stirring and re-grinding. This ensures that the impurities in the sludge are fully refined, providing high-quality raw materials for subsequent drying and molding, and improving the sludge recycling rate.

[0012] (2) This device achieves parallel operation of pretreatment and drying, and conveying and forming, which significantly shortens the single-batch sludge treatment cycle compared to the traditional step-by-step processing mode. When crushing, grinding and stirring are carried out simultaneously, the discharge device simultaneously conveys the treated sludge to the drying box under negative pressure. The drying process and the pretreatment process are carried out in parallel, without waiting for the pretreatment to be completed before starting the drying, reducing the time loss between processes. After drying is completed, the drying box is quickly moved out by the slide rail and automatically tilted by the tilting shaft. The shaped sludge can be collected without additional auxiliary tools. The collection process does not affect the pretreatment and conveying of the next batch of sludge, realizing continuous batch processing and improving the overall operation efficiency.

[0013] (3) The scraper at the end of the mixing blade fits tightly against the inner wall of the mixing tank, which can effectively prevent sludge from clumping and adhering, reduce the workload of equipment cleaning, and ensure long-term stable operation; the adaptive design of the decreasing grinding tank and grinding teeth can adapt to the finer requirements of impurities of different particle sizes, and can treat complex construction site sludge without replacing parts; the combination structure of the sliding rail and tilting shaft of the drying box takes into account both convenient movement and tilting stability, and the sludge lumps are not easy to scatter during the collection process, improving operational safety. Each device has a compact structure and high fitting precision, which can adapt to the treatment of construction site sludge with different humidity and different composition, has a wide range of applications, and significantly improves the utilization rate of the equipment. Attached Figure Description

[0014] Figure 1 This is one of the structural schematic diagrams of a sludge treatment device for construction sites proposed in this invention; Figure 2 This is a second schematic diagram of a sludge treatment device for construction sites proposed in this invention. Figure 3 This is a partial cross-sectional structural diagram of a sludge treatment device for construction sites proposed in this invention. Figure 4 This is a schematic cross-sectional view of the mixing device of a sludge treatment apparatus for construction sites proposed in this invention. Figure 5 for Figure 4 Enlarged schematic diagram of the structure at point A in the middle; Figure 6 This is a schematic cross-sectional view of the sludge treatment device for construction sites proposed in this invention. Figure 7 This is a schematic diagram showing the disassembled internal structure of a sludge treatment device for construction sites proposed in this invention. Figure 8 This is a schematic diagram of the split cross-sectional structure of a sludge treatment device for construction sites proposed in this invention.

[0015] The corresponding labels in the attached diagram are named as follows: 1. Support; 2. Processing box; 3. Crushing device; 301. Feed inlet; 302. Crushing motor; 303. Drive gear; 304. Driven crushing roller; 305. Driven gear; 306. Driven crushing roller; 307. Transmission gear; 308. First transmission belt; 309. Second transmission belt; 310. First transmission gear; 311. First bevel gear; 312. Second bevel gear; 313. Second transmission gear; 314. Third transmission belt; 4. Agitator; 401. Agitator box; 402. Agitator gear; 403. Agitator rod; 404. 405. Threaded plate; 406. Protective sleeve; 407. Connecting rod; 408. Stirring drum; 409. Stirring blade; 500. Scraper; 501. Grinding device; 502. Grinding plate; 503. Grinding disc; 504. Fixing plate; 505. Grinding groove; 506. Grinding inlet; 6. Drying oven; 601. Heating coil; 602. Slide rail; 603. Sliding block; 604. Tilting shaft; 7. Discharge device; 701. Discharge pipe; 702. Negative pressure airbag; 703. Discharge shaft; 704. Discharge rod; 705. Pressing shaft; 706. Pressing rod; 707. Discharge gear. Detailed Implementation

[0016] The technical solutions of the embodiments 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. 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.

[0017] The specific implementation process is as follows: Example 1: Please see Figure 1-8 The present invention provides a technical solution: a sludge treatment device for construction sites, comprising a support 1, a processing box 2 fixedly installed on the support 1 by bolts, the processing box 2 being a hollow box structure with an opening on one side of the top, used to support various functional devices; a crushing device 3 is fixedly installed at the opening of the processing box 2, the crushing device 3 being partially embedded inside the processing box 2, providing preliminary crushing treatment for the sludge; a stirring device 4, adapted to the power of the crushing device 3, is provided on one side of the inner wall of the processing box 2, the stirring device 4 being located directly below the crushing device 3, receiving the crushed sludge; a grinding device 5 is fixedly installed on the upper side of the inner wall of the stirring device 4, the grinding device 5 being linked with the stirring device 4, for further refining the crushed sludge; a drying box 6 is provided on the other side of the inner wall of the processing box 2 via a sliding rail structure, the drying box 6 being horizontally corresponding to the stirring device 4; a discharge device 7 is sealed and connected to the top of the drying box 6, the other end of the discharge device 7 being connected to the bottom of the stirring device 4, used to transport the treated sludge into the drying box 6.

[0018] The crushing device 3 includes a feed inlet 301 fixedly installed on one side above the processing box 2. The feed inlet 301 has a funnel-shaped structure, with its bottom end penetrating through the top wall of the processing box 2 and communicating with the interior of the processing box 2. The crushing device 3 also includes a crushing motor 302 fixedly installed on the outer wall of the processing box 2 via a motor base. The output end of the crushing motor 302 horizontally penetrates through the side wall of the processing box 2, extends into the interior of the processing box 2, and is fitted with a drive gear 303. The drive gear 303 and the output end of the crushing motor 302 are fixedly connected by a flat key. An active crushing roller 304 is integrally formed on the side of the drive gear 303 away from the crushing motor 302. The active crushing roller 304 is coaxially arranged with the active gear 303, and the active crushing roller 304 is movably mounted on the inner wall of the processing box 2 via a bearing seat. A driven gear 305 meshes below the active gear 303, and the driven gear 305 has the same module as the active gear 303 to ensure smooth transmission. A driven crushing roller 306 is integrally formed on the side of the driven gear 305 away from the inner wall of the processing box 2. The driven crushing roller 306 is arranged parallel to the active crushing roller 304, and both have wear-resistant tooth patterns on their surfaces. The spacing is adapted to the sludge crushing requirements, and both the driven crushing roller 306 and the active crushing roller 304 are movably mounted on the processing box 2 via bearings. The inner wall allows for relative reverse rotation; the driven crushing roller 306 extends to the outer side of the inner wall of the processing box 2 at one end away from the driven gear 305, and two sets of transmission gears 307 are fixed at this end by a flat key, with the two sets of transmission gears 307 arranged side by side; the transmission gears 307 are adapted to a first transmission belt 308 and a second transmission belt 309; the end of the second transmission belt 309 away from the transmission gear 307 is adapted to a first transmission gear 310, which is movably mounted on the inner wall of the processing box 2 via a rotating shaft and is arranged perpendicular to the driven crushing roller 306; the side of the first transmission gear 310 away from the second transmission belt 309 is coaxial. A first bevel gear 311 is fixedly provided, and the first bevel gear 311 is fixedly connected to the first transmission gear 310 by a flat key; a second bevel gear 312 is meshed below the first bevel gear 311, and the second bevel gear 312 is used to change the direction of power transmission, and its axis is perpendicular to the axis of the first bevel gear 311; a second transmission gear 313 is integrally formed on the side of the second bevel gear 312 away from the first bevel gear 311, and the second transmission gear 313 is coaxially arranged with the second bevel gear 312; a third transmission belt 314 is adapted to the surface of the second transmission gear 313, and the third transmission belt 314 is used to transmit power to the stirring device 4.

[0019] The crushing device 3, as the power and pretreatment core of the entire equipment, outputs power through the crushing motor 302. The active crushing roller 304 and the driven crushing roller 306 rotate in opposite directions through the meshing of the active gear 303 and the driven gear 305. The toothed crushing roller squeezes and shears large pieces of debris in the sludge to complete the initial crushing, reducing the processing difficulty for the subsequent grinding process. At the same time, the two sets of transmission gears 307 at the end of the driven crushing roller 306 distribute the single power to the discharge device 7 and the stirring device 4 through the first transmission belt 308 and the second transmission belt 309. With the direction conversion of the first bevel gear 311 and the second bevel gear 312, the multi-process synchronous linkage is realized, eliminating the need for an additional drive mechanism and greatly reducing energy consumption.

[0020] The stirring device 4 includes a stirring box 401 fixedly installed on the inner wall of the processing box 2 by welding. The stirring box 401 is a cylindrical structure with an open top and a sealed bottom. The open top corresponds to the active crushing roller 304 and the driven crushing roller 306 of the crushing device 3, and receives the crushed sludge. A stirring rod 403 is provided at the axial position of the stirring box 401, penetrating its bottom wall. The stirring rod 403 is connected to the bottom wall of the stirring box 401 by a sealed bearing to ensure the sealing of the stirring box 401. A stirring gear 402 is fixedly installed on one end of the stirring rod 403 outside the stirring box 401 by a flat key. The stirring gear 402 is adapted to be connected to the end of the third transmission belt 314 away from the second transmission gear 313, and receives power through the third transmission belt 314. A threaded plate 404 is fixedly installed on the surface of the stirring rod 403 inside the stirring box 401 by welding. The threaded plate 404 has a spiral structure and is used to convey the sludge at the bottom of the stirring box 401 upward. The outer wall of the stirring rod 403 is located on the threaded plate 404. A protective sleeve 405 is welded and fixed above the plate 404. The protective sleeve 405 is a hollow cylindrical structure and is coaxially arranged with the stirring rod 403. Two sets of connecting rods 406 are symmetrically welded to the lower surface of the stirring rod 403, and the connecting rods 406 extend radially along the stirring rod 403. A stirring cylinder 407 is welded and fixed to one end of the two sets of connecting rods 406 away from the stirring rod 403. The stirring cylinder 407 is a hollow cylindrical structure, and its inner wall is movably adapted to the outer wall of the protective sleeve 405 through bearings. Ensure that the mixing drum 407 rotates smoothly with the mixing rod 403; several mixing blades 408 are uniformly welded on the surface of the mixing drum 407. The mixing blades 408 are inclined and form a 30° angle with the axis of the mixing drum 407 to improve the mixing and homogenization effect; a scraper 409 is vertically welded to the end of the mixing blade 408 away from the mixing drum 407. The scraper 409 is made of wear-resistant rubber material, and its outer surface is in close contact with the inner wall of the mixing tank 401 to scrape off the sludge attached to the inner wall of the mixing tank 401.

[0021] The stirring device 4 receives power from the crushing device 3 via the stirring gear 402, driving the stirring rod 403 to rotate, achieving the triple functions of "circulating conveying + homogenizing stirring + anti-caking"; the spiral threaded plate 403 can push the sludge at the bottom of the mixing box 401 upward to the grinding device 5, forming a closed-loop grinding process to ensure thorough finening of impurities; the inclined stirring blade 408 can fully stir the sludge, making the sludge and fined impurities evenly mixed, improving the molding adhesion; the wear-resistant rubber scraper 409 rotates against the box wall, which can remove the attached sludge in time, avoid caking and affect the processing efficiency, and at the same time protect the inner wall of the mixing box from wear, extending the service life of the equipment.

[0022] The grinding device 5 includes a grinding plate 501 fixedly installed on the inner wall of the mixing tank 401 by welding. The grinding plate 501 has a ring structure and is horizontally positioned below the top opening of the mixing tank 401. Its inner ring diameter is adapted to the outer diameter of the protective sleeve 405 and is fitted onto the outside of the protective sleeve 405. A plurality of grinding teeth 502 are uniformly and integrally formed on the upper surface of the grinding plate 501. The grinding teeth 502 have a conical structure and their height decreases gradually from the inside to the outside. A grinding disc 503 is movably adapted above the grinding plate 501. The grinding disc 503 has a ring structure corresponding to the grinding plate 501 and is horizontally covered above the grinding plate 501. A fixing plate is fixedly installed on the upper surface of the grinding disc 503 by welding. 504. The fixing plate 504 has a cross-shaped structure, and its center position is fixedly connected to the top of the protective sleeve 405 by welding, so that the grinding disc 503 and the protective sleeve 405 rotate synchronously. The lower surface of the grinding disc 503 is provided with a number of grinding grooves 505 that are adapted to the grinding teeth 502. The grinding grooves 505 are of decreasing shape, gradually becoming shallower and narrower from the inner ring to the outer ring of the grinding disc 503, which cooperate with the grinding teeth 502 to achieve multi-level fineness. The grinding disc 503 has a circular grinding inlet 506 at the axial position. The grinding inlet 506 penetrates the upper and lower surfaces of the grinding disc 503 and corresponds to the opening at the top of the mixing box 401, so that the crushed sludge can enter between the grinding disc 503 and the grinding plate 501.

[0023] The grinding device 5 relies on the power transmission of the stirring device 4, and rotates synchronously with the protective sleeve 405 through the fixed plate 504, driving the grinding disc 503 to rotate relative to the grinding plate 501. The crushed sludge enters the grinding gap through the grinding inlet 506, and through the step-by-step meshing and squeezing of the decreasing grinding groove 505 and the conical grinding teeth 502, the impurities are refined from large to small in a step-by-step manner, solving the problem that single crushing cannot remove fine impurities. The decreasing design of the grinding teeth and grinding groove can avoid impurities from clogging the grinding gap, while improving grinding efficiency and ensuring that the particle size of the refined impurities is uniform, laying the foundation for subsequent sludge homogenization and shaping.

[0024] The drying chamber 6 is a rectangular structure with an open top and sealed sides. Heating coils 601 are evenly distributed inside the chamber, embedded in the inner wall of the drying chamber 6, and connected to an external power source via wires to heat the interior of the drying chamber 6. Horizontal slide rails 602 are provided on the inner wall of the processing chamber 2 corresponding to both sides of the drying chamber 6. The slide rails 602 are fixed to the inner wall of the processing chamber 2 with bolts. A slider 603 is slidably fitted inside the slide rails 602. The slider 603 is welded to the outer wall of the drying chamber 6, allowing the drying chamber 6 to move horizontally along the slide rails 602. A tilting shaft 604 is rotatably mounted above the slider 603 via bearings. The tilting shaft 604 is horizontally positioned, with one end welded to the bottom of the drying chamber 6 away from the inner side of the processing chamber 2. When the drying chamber 6 moves out of the processing chamber 2 along the slide rails 602, it can rotate and tilt around the tilting shaft 604, facilitating the collection of sludge blocks.

[0025] The drying box 6 serves as the sludge forming terminal. Its internal heating coil 601 can be preheated in advance and run in parallel with the front-end pretreatment process, shortening the overall processing cycle. The heating coil 601 is embedded in the inner wall, which can achieve uniform heating and avoid incomplete drying in some areas, resulting in loose sludge blocks. The cooperation between the slide rail 602 and the slider 603 allows the drying box to be moved out of the processing box flexibly. Then, through the rotational characteristics of the tilting shaft 604, the drying box can be tilted naturally, and the formed sludge blocks can be collected without manual shoveling, reducing the intensity of operation and preventing sludge blocks from scattering and causing secondary pollution.

[0026] The discharge device 7 includes three sets of parallel discharge pipes 701. Each discharge pipe 701 is made of corrosion-resistant PVC, with one end extending through the lower inner wall of the mixing tank 401, communicating with the interior of the mixing tank 401. A sealing gasket is provided at the connection point to ensure a tight seal. The other ends of the three sets of discharge pipes 701 are fixedly installed at the opening above the drying chamber 6, sealingly communicating with the interior of the drying chamber 6. A negative pressure airbag 702 is fixedly mounted above the discharge pipes 701 near the mixing tank 401 via a bracket. The negative pressure airbag 702 is made of elastic rubber and communicates with the interior of the discharge pipes 701, generating negative pressure through compression and reset. A discharge shaft 703 is rotatably mounted above the negative pressure airbag 702 via a bearing. The discharge shaft 703 is horizontally positioned, with both ends fixed to the inner wall of the processing chamber 2 via brackets. A discharge rod 704 is fixedly welded to the surface of the 03 surface. The discharge rod 704 extends radially along the discharge shaft 703, and its bottom end corresponds to the upper surface of the negative pressure airbag 702. A pressing shaft 705 is movably connected to the upper end of the discharge rod 704 via a bearing. The pressing shaft 705 is vertically arranged. A pressing rod 706 is fixedly welded to the axial position of the top end of the pressing shaft 705. The pressing rod 706 is horizontally arranged. A discharge gear 707 is fixedly connected to the end of the pressing rod 706 away from the pressing shaft 705 via a flat key. The pressing rod 706 and the discharge gear 707 are off-axis, so that when the discharge gear 707 rotates, it can drive the pressing rod 706 to make a circular motion. The discharge gear 707 is adapted to be connected to the end of the first transmission belt 308 away from the transmission gear 307, and receives the power transmitted by the crushing device 3.

[0027] The discharge device 7 receives power from the crushing device 3 via the discharge gear 707. Utilizing the eccentric design of the pressing rod and the discharge gear, the rotational motion is converted into the reciprocating lifting motion of the pressing shaft 705, driving the discharge rod 704 to continuously compress the negative pressure airbag 702. The negative pressure airbag generates a stable negative pressure through a compression-reset cycle, which is then evenly drawn into the drying chamber through three sets of discharge pipes 701, preventing sludge from settling at the bottom of the mixing chamber. The multiple discharge pipe design improves conveying efficiency while ensuring uniform distribution of sludge within the drying chamber, enhancing the drying and shaping effect. The sealing gaskets at the connections prevent negative pressure leakage, ensuring conveying stability, while the corrosion-resistant PVC material extends the service life of the discharge pipes and is suitable for the corrosive environment of sludge.

[0028] Its working principle is as follows: The operator starts the crushing motor 302 of the crushing device 3 through the control device, and at the same time turns on the heating coil 601 in the drying box 6, so that the heating coil 601 is preheated to the preset drying temperature, which prepares for the subsequent sludge molding, realizing the parallel preheating and pretreatment process, saving the overall processing time.

[0029] Construction site sludge is fed into processing box 2 through inlet 301. Crushing motor 302 drives drive gear 303 to rotate. Drive gear 303 drives drive roller 304 to rotate on one hand, and drives driven roller 306 to rotate synchronously in the opposite direction through meshing driven gear 305. Drive roller 304 and driven roller 306 cooperate to initially crush large pieces of sand, gravel, concrete residue and other debris in the sludge. The crushed mixture falls into grinding device 5 area. At the same time, two sets of transmission gears 307 at the end of driven roller 306 rotate synchronously, transmitting power through first transmission belt 308 and second transmission belt 309 respectively to realize multiple processes.

[0030] The second transmission belt 309 drives the first transmission gear 310 and the coaxial first bevel gear 311 to rotate. The first bevel gear 311 changes the direction of power through the meshing second bevel gear 312, driving the second transmission gear 313 to rotate, which in turn drives the stirring gear 402 and stirring rod 403 to rotate through the third transmission belt 314. When the stirring rod 403 rotates, it drives the fixed plate 504 and the grinding disc 503 to rotate synchronously through the protective sleeve 405. The crushed mixture enters the space between the grinding disc 503 and the grinding plate 501 through the grinding inlet 506. With the help of the decreasing grinding groove 505 and the grinding teeth 502, the impurities are gradually refined from large to small. The refined sludge falls into the mixing tank 401. At the same time, the stirring rod 403 drives the threaded plate 404 to rotate, which conveys the sludge at the bottom of the mixing box 401 upward and sends it back into the grinding area for cyclic grinding to ensure thorough treatment; the stirring blades 408 on the mixing drum 407 rotate synchronously to homogenize and stir the sludge, and the scraper 409 scrapes against the inner wall of the mixing box 401 to prevent sludge from clumping and adhering, thus ensuring stable operation of the equipment.

[0031] The first transmission belt 308 drives the discharge gear 707 to rotate. Since the pressing rod 706 is axially connected to the discharge gear 707, the rotation of the discharge gear 707 drives the pressing rod 706 to make a circular motion. This, in turn, drives the discharge rod 704 to reciprocate up and down through the pressing shaft 705, continuously pressing the negative pressure airbag 702 to generate a stable suction force. The sludge treated in the mixing box 401 is then evenly sucked into the drying box 6 through the three sets of discharge pipes 701. At this time, the drying box 6 has been preheated, and the heating coil 601 quickly dries the sludge. The sludge gradually takes shape during the drying process. The drying time can be preset according to the sludge moisture content through the control device to ensure that the shaping effect meets the standards.

[0032] After drying is complete, the crushing motor 302 and heating coil 601 are turned off. The operator pushes the drying box 6, and the sliding block 603 moves the drying box 6 out of the processing box 2 along the slide rail 602. During the removal process, the tilting shaft 604 causes the drying box 6 to tilt naturally to the ground, allowing the operator to directly collect the formed sludge blocks. The collection is convenient and does not easily scatter. After collection, the drying box 6 is pulled in the opposite direction. With the help of the rotational reset characteristic of the tilting shaft 604, the drying box 6 returns to a horizontal state and is put back into position. Then it can be put into the next batch of sludge treatment, realizing continuous operation.

[0033] This device achieves full automation and high efficiency in sludge treatment through a single power source and multiple processes, eliminating the need for frequent manual intervention in the connection between processes. This not only reduces the labor intensity of operators but also avoids errors caused by manual operation. The circulating grinding design ensures thorough sludge treatment and improves the recycling rate. It can be adapted to the treatment of sludge with different compositions, making it highly versatile and suitable for sludge environmental treatment scenarios in various construction sites.

[0034] The above descriptions are merely embodiments of the present invention, and common knowledge regarding specific technical solutions or characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solutions of the present invention, and these should also be considered within the scope of protection of the present invention. These modifications and improvements will not affect the effectiveness of the implementation of the present invention or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A sludge treatment device for construction sites, comprising a support frame (1), characterized in that: A processing box (2) is fixedly installed above the support (1). A crushing device (3) is fixedly installed on one side of the processing box (2). A stirring device (4) adapted to the crushing device (3) is installed on one side of the inner wall of the processing box (2). A grinding device (5) is fixedly installed above the inner wall of the stirring device (4). A drying box (6) is installed on the other side of the inner wall of the processing box (3). A discharge device (7) is adapted to the top of the drying box (6).

2. The sludge treatment device for construction sites according to claim 1, characterized in that: The crushing device (3) includes an inlet (301) fixedly installed on one side above the processing box (2). The crushing device (3) also includes a crushing motor (301) fixedly installed on the outer wall of the processing box (2). The output end of the crushing motor (301) is fitted with a drive gear (303). A drive crushing roller (304) is fixedly installed on one side of the drive gear (303). A driven gear (305) meshes with one side of the drive gear (303). A driven crushing roller (306) is fixedly installed on one side of the driven gear (305). The driven crushing roller (306) and the drive crushing roller (304) are movably installed in the processing box. (2) On the inner wall, two sets of transmission gears (307) are fixedly provided at the other end of the driven crushing roller (306). The two sets of transmission gears (307) are respectively provided with a first transmission belt (308) and a second transmission belt (309). A first transmission gear (310) is fixedly provided at the other end of the second transmission belt (309). A first bevel gear (311) is provided on one side of the first transmission gear (310). A second bevel gear (312) is meshed with the first bevel gear (311). A second transmission gear (313) is fixedly provided on one side of the second bevel gear (312). A third transmission belt (314) is adapted to the surface of the second transmission gear (313).

3. The sludge treatment device for construction sites according to claim 2, characterized in that: The stirring device (4) includes a stirring box (401) fixedly installed on the inner wall of the processing box (2). A stirring rod (403) is provided through the axial position of the stirring box (401). A stirring gear (402) is provided below the stirring rod (403). The stirring gear (402) is adapted to be connected to one end of the third transmission belt (314). A threaded plate (404) is fixedly provided on the surface of the stirring rod (403). A protective sleeve (405) is fixedly provided on the outer wall of the stirring rod (403). A connecting rod (406) is fixedly provided on the lower surface of the stirring rod (403). A stirring cylinder (407) that is movably adapted to the protective sleeve (405) is fixedly provided on the surface of the connecting rod (403). A plurality of stirring blades (408) are evenly provided on the surface of the stirring cylinder (407). A scraper (409) is vertically provided at one end of the stirring blade (408). The scraper (409) is in contact with the inner wall of the stirring box (401).

4. A sludge treatment device for construction sites according to claim 3, characterized in that: The grinding device (5) includes a grinding plate (501) fixedly installed on the inner wall of the mixing tank (401). The surface of the grinding plate (501) is provided with a plurality of grinding teeth (502). A grinding disc (503) is movably adapted above the grinding plate (501). A fixing plate (504) is fixedly installed above the grinding disc (503). The fixing plate (504) is fixedly connected to the protective sleeve (405). A plurality of grinding grooves (505) adapted to the grinding teeth (502) are opened on the lower surface of the grinding disc (503). The grinding grooves (505) are in a decreasing groove shape. A grinding inlet (506) is provided at the axial position of the grinding disc (503).

5. A sludge treatment device for construction sites according to claim 1, characterized in that: The drying box (6) is equipped with a heating coil (601), the inner wall of the processing box (2) is equipped with a slide rail (602), the slide rail (602) is equipped with a slider (603), and a tilting shaft (604) is rotatably provided above the slider (603). The tilting shaft (604) is fixedly connected to one end of the bottom of the drying box (6).

6. A sludge treatment device for construction sites according to claim 2, characterized in that: The discharge device (7) includes three sets of discharge pipes (701). One end of each discharge pipe (701) extends through the lower part of the inner wall of the stirring device (4), and the other end is fixedly installed above the drying box (6). A negative pressure airbag (702) is fixedly installed above the discharge pipe (701). A discharge shaft (703) is rotatably installed above the negative pressure airbag (702). A discharge rod (704) is fixedly installed on the surface of the discharge shaft (703). A pressing shaft (705) is fixedly installed at the upper end of the discharge rod (704). A pressing rod (706) is fixedly installed at the axial position of the pressing shaft (705). A discharge gear (707) is fixedly installed at one end of the pressing rod (706). One end of the pressing rod (706) is off-center from the discharge gear (707).

7. A sludge treatment device for construction sites according to claim 6, characterized in that: The discharge gear (707) is adapted to be connected to one end of the first transmission belt (308).

Images