Efficient drying equipment for concrete expansive agent
By coordinating the fluidized drying mechanism and the drive mechanism, and using the crank-connecting rod structure to drive the perforated plate to change angles, the continuity and drying quality problems of existing equipment are solved, and a high-efficiency, low-dust drying effect for concrete expansion agents is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QIXIAN LONGTENG COMMERCIAL CONCRETE CO LTD
- Filing Date
- 2025-05-29
- Publication Date
- 2026-05-22
AI Technical Summary
Existing concrete expansion agent drying equipment has poor continuity, and the heating plate cannot fully contact the concrete expansion agent raw material, resulting in poor drying quality.
The fluidized drying mechanism and drive mechanism are adopted. The crank-connecting rod structure drives the perforated plate to reciprocate at a specified angle, so that the concrete expansion agent is strongly turbulent in the hot air section and weakly turbulent in the cold air section, ensuring full contact with hot air and suppressing the generation of smoke and dust.
This technology enables efficient and continuous drying of concrete expansion agents, ensuring drying quality while reducing dust generation.
Smart Images
Figure CN224266753U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of concrete expansion agent production technology, specifically to a high-efficiency drying device for concrete expansion agents. Background Technology
[0002] Concrete expansion agent is used to prepare expansive concrete and shrinkage-compensating concrete. It has the functions of compensating for concrete drying shrinkage and compacting concrete, and improving concrete impermeability. In civil engineering, it is mainly used for waterproofing and crack resistance. The drying of concrete expansion agent is a key step in the production process. During the production process, the concrete expansion agent becomes wet granules, which need to be dried to become the finished product. Therefore, an efficient drying equipment is needed to dry it.
[0003] In the prior art, patent publication number CN202021331883.1 discloses a drying device for producing concrete expansion agent, comprising a silo, a feed pipe, an isolation cylinder, a heating wire, a screw feeding mechanism, and a discharge mechanism. The isolation cylinder is located inside and fixedly connected to the silo. An outlet is located at the upper end of the isolation cylinder, and a feed inlet is located at the lower end. The isolation cylinder divides the interior of the silo into an interconnected inner cavity and an outer cavity. The screw feeding mechanism includes a first drive unit and an auger. The fixed end of the first drive unit is fixedly connected to the silo, and the auger is located in the inner cavity and abuts against the inner wall of the isolation cylinder. A discharge port is located below the silo, and the discharge mechanism is located at the discharge port and detachably connected to the silo.
[0004] The aforementioned drying equipment has some problems in actual use, such as low continuity and insufficient contact between the heating plate and the concrete expansion agent raw material, resulting in poor drying quality. Therefore, we propose a high-efficiency drying equipment for concrete expansion agent. Utility Model Content
[0005] The technical problem to be solved by this utility model is to overcome the existing defects and provide a high-efficiency drying equipment for concrete expansion agent, which has good continuity and can ensure the drying quality of concrete expansion agent, thus effectively solving the problems in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency drying device for concrete expansion agent, including a drying box, a support provided on the lower side of the drying box, and a fluidized drying mechanism and a driving mechanism;
[0007] Drying oven: Its front and rear side walls are respectively equipped with side mounting boxes;
[0008] Fluidized drying mechanism: It includes a clearance opening, a first rotating shaft, a sealing frame plate, and a perforated plate. The first rotating shaft is rotatably connected to the right side of the front side wall of the front side mounting box and the right side of the rear side mounting box. The middle of the opposite inner sides of the two side mounting boxes are respectively provided with clearance openings. The ends of the two first rotating shafts are respectively fixedly connected to the sealing frame plate. The middle of the two sealing frame plates are respectively slidably connected to the interior of the clearance opening located on the same side. A perforated plate is fixedly connected between the two sealing frame plates.
[0009] Drive mechanism: It is located inside the two side mounting boxes, which provides good continuity while ensuring the drying quality of concrete expansion agent.
[0010] Furthermore, a controller is provided on the front side of the bracket, and the input terminal of the controller is electrically connected to an external power source.
[0011] Furthermore, the fluidized bed drying mechanism also includes an arc-shaped limiting rod and an arc-shaped limiting cylinder. The arc-shaped limiting rod is fixedly connected to the left side between the upper and lower inner walls of the two side mounting boxes. The outer arc surfaces of the two arc-shaped limiting rods are respectively movably fitted with arc-shaped limiting cylinders. The outer arc surfaces of the two arc-shaped limiting cylinders are respectively fixedly connected to the left side of the sealing frame plate located on the same side to realize the limiting function.
[0012] Furthermore, the fluidized bed drying mechanism also includes a feeding section, a discharge hopper, and a buffer impact plate. The left end of the perforated plate is the feeding section, and the right end of the perforated plate is the discharge hopper. A buffer impact plate is provided on the lower left side between the front and rear inner walls of the drying box. The upper surface of the buffer impact plate is provided with shock-absorbing rubber pads, which correspond to the upper and lower positions of the feeding section to protect the overall structure of the perforated plate.
[0013] Furthermore, the drive mechanism includes a second rotating shaft, rounded corner rods, a third rotating shaft, rounded corner groove plates, a worm gear, a worm, a sealing box, a chain, and a sprocket. The second rotating shafts are rotatably connected to the left side of the front side wall of the front side mounting box and the left side of the rear side mounting box, respectively. Rounded corner rods are fixedly connected to the ends of the two second rotating shafts. Third rotating shafts are fixedly connected to the left sides of the opposite inner surfaces of the two rounded corner rods. Rounded corner groove plates are provided on the left sides of the two sealing brackets. The outer arc surfaces of the two third rotating shafts are slidably connected to the inside of the grooves of the rounded corner groove plates located on the same side. Worm gears are fixedly fitted onto the outer arc surfaces of the two rotating shafts. Worms are rotatably connected between the upper and lower inner walls of the two side mounting boxes on the left side. The two worms are respectively engaged with the worm gears located on the same side. The lower ends of the two worms are respectively equipped with sprockets, which are connected by chain drive. A sealing box is located on the lower left side of the drying box. The two sprockets and a chain are located inside the sealing box. A motor is located on the upper front left side of the drying box. The output shaft of the motor is fixedly connected to the upper end of the worm on the front side. The input end of the motor is electrically connected to the output end of the controller, driving the perforated plate to continuously shake.
[0014] Furthermore, an upper limiting net is provided on the upper right side between the front and rear inner walls of the drying box, and evenly distributed air inlet boxes are provided on the lower side of the drying box, while evenly distributed air outlet boxes are provided on the upper side of the drying box. The air inlet pipes of the four air inlet boxes on the left side are respectively connected to an external hot air blower, the air inlet pipes of the three air inlet boxes on the right side are respectively connected to an external cold air blower, and the air outlet pipes of the four air outlet boxes are respectively connected to an external waste gas treatment device, providing hot air and cold air for drying.
[0015] Furthermore, the drying box has a feed inlet on the left side of its upper surface and a discharge outlet on the lower right side of its right side, thus realizing the functions of feeding and discharging materials.
[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: This high-efficiency drying equipment for concrete expansion agent has the following advantages:
[0017] This high-efficiency drying equipment adopts a crank-connecting rod structure, which drives the perforated plate to reciprocate at a specified angle around the central axis of the first rotating shaft. This causes vibration on the surface of the perforated plate. When the concrete expansion agent raw material enters the perforated plate, the tumbling effect is stronger in the hot air section and weaker in the cold air section. In the hot air section, the concrete expansion agent is fully in contact with the hot air, while in the cold air section, the tumbling intensity of the concrete expansion agent is poor, which suppresses the generation of dust. This equipment provides good continuity while ensuring the drying quality of the concrete expansion agent. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of this utility model;
[0019] Figure 2 This is a structural schematic diagram of the present invention viewed from below;
[0020] Figure 3 This is a cross-sectional structural diagram of the drying oven of this utility model;
[0021] Figure 4 This is a schematic diagram of the structure of the present invention in an explosion.
[0022] Figure 5 This is an enlarged structural diagram of point A of this utility model;
[0023] Figure 6 This is an enlarged structural schematic diagram of section B of this utility model;
[0024] Figure 7 This is an enlarged structural schematic diagram of point C of this utility model.
[0025] In the diagram: 1. Drying box; 2. Fluidized drying mechanism; 21. Circumvention port; 22. First rotating shaft; 23. Sealing frame plate; 24. Arc-shaped limiting rod; 25. Arc-shaped limiting cylinder; 26. Perforated plate; 27. Feeding section; 28. Discharge hopper; 29. Buffer impact plate; 3. Drive mechanism; 31. Second rotating shaft; 32. Rounded corner rod; 33. Third rotating shaft; 34. Rounded corner groove plate; 35. Worm gear; 36. Worm; 37. Sealing box; 38. Chain; 39. Sprocket; 4. Motor; 5. Upper limiting net; 6. Inlet air box; 7. Outlet air box; 8. Feed port; 9. Discharge port; 10. Controller. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0027] Please see Figure 1-7 This embodiment provides a technical solution: a high-efficiency drying device for concrete expansion agent, including a drying box 1, with a support on the lower side of the drying box 1, characterized in that: it also includes a fluidized drying mechanism 2 and a driving mechanism 3;
[0028] Drying oven 1: Side mounting boxes are provided on its front and rear side walls respectively. A controller 10 is located on the front side of the support frame. The input terminal of the controller 10 is electrically connected to an external power source. An upper limiting net 5 is provided on the upper right side between the front and rear inner walls of the drying oven 1. Evenly distributed air inlet boxes 6 are provided on the lower side of the drying oven 1, and evenly distributed air outlet boxes 7 are provided on the upper side of the drying oven 1. The air inlet pipes of the four air inlet boxes 6 on the left side are respectively connected to an external hot air blower, and the air inlet pipes of the three air inlet boxes 6 on the right side are respectively connected to an external cold air blower. The air outlet pipes of the four air outlet boxes 7 are respectively connected to external waste gas treatment equipment. The upper left side of the drying chamber 1 is provided with a feed inlet 8, and the lower right side of the drying chamber 1 is provided with a discharge outlet 9. At this time, it is necessary to adjust the external hot air fan, external cold air fan and external exhaust gas treatment equipment. Hot air enters the four air inlet boxes 6 on the left through the four air inlet pipes on the left, and the hot air airflow rises upward. Cold air enters the three air inlet boxes 6 on the right through the three air inlet pipes on the right, and the cold air airflow also rises upward. The four air outlet boxes 7 also generate suction. The upper limiting net 5 restricts the position of the concrete expansion agent raw material after it enters the drying chamber 1, ensuring that the concrete expansion agent raw material does not tumble excessively.
[0029] Fluidized bed drying mechanism 2: It includes a clearance opening 21, a first rotating shaft 22, a sealing frame plate 23, and a perforated plate 26. The first rotating shaft 22 is rotatably connected to the right side of the front side wall of the front side mounting box and the right side of the rear side mounting box. The middle of the opposite inner sides of the two side mounting boxes are respectively provided with clearance openings 21. The ends of the two first rotating shafts 22 are respectively fixedly connected to the sealing frame plate 23. The middle parts of the two sealing frame plates 23 are respectively slidably connected to the interior of the clearance opening 21 located on the same side. The perforated plate 26 is fixedly connected between the two sealing frame plates 23. The fluidized bed drying mechanism 2 also includes an arc-shaped limiting rod 24 and an arc-shaped limiting cylinder 25. Limiting rods 24 are fixedly connected to the left side of the upper and lower inner walls of the two side mounting boxes respectively. The outer arc surfaces of the two arc-shaped limiting rods 24 are respectively movably fitted with arc-shaped limiting cylinders 25. The outer arc surfaces of the two arc-shaped limiting cylinders 25 are respectively fixedly connected to the left side of the sealing frame plate 23 located on the same side. The fluidized drying mechanism 2 also includes a feeding section 27, a discharge hopper 28 and a buffer impact plate 29. The left end of the perforated plate 26 is the feeding section 27, and the right end of the perforated plate 26 is the discharge hopper 28. A buffer impact plate 29 is provided on the lower left side between the front and rear inner walls of the drying box 1. The upper surface of the buffer impact plate 29 is provided with shock-absorbing rubber pads, and the shock-absorbing rubber pads correspond to the upper and lower positions of the feeding section 27.
[0030] Drive mechanism 3: It is located inside the two side mounting boxes. Drive mechanism 3 includes a second rotating shaft 31, a rounded rod 32, a third rotating shaft 33, a rounded groove plate 34, a worm gear 35, a worm 36, a sealing box 37, a chain 38, and a sprocket 39. The second rotating shaft 31 is rotatably connected to the left side of the front side wall of the front side mounting box and the left side of the rear side mounting box. The ends of the two second rotating shafts 31 are respectively fixedly connected to the rounded rods 32. The left sides of the opposite inner surfaces of the two rounded rods 32 are respectively fixedly connected to the third rotating shafts 33. The left sides of the two sealing brackets 23 are respectively provided with rounded groove plates 34. The outer arc surfaces of the two third rotating shafts 33 are slidably connected to the inside of the groove of the rounded groove plate 34 located on the same side. Each part is fixedly fitted with a worm gear 35. Worms 36 are rotatably connected between the upper and lower inner walls of the two side mounting boxes on the left side. The two worm gears 36 are respectively engaged with the worm gears 35 located on the same side. The lower ends of the two worm gears 36 are respectively equipped with sprockets 39, which are connected by a chain 38. A sealing box 37 is located on the lower left side of the drying box 1. The two sprockets 39 and a chain 38 are all located inside the sealing box 37. A motor 4 is located on the upper front left side of the drying box 1. The output shaft of the motor 4 is fixedly connected to the upper end of the worm gear 36 on the front side. The input end of the motor 4 is electrically connected to the output end of the controller 10. When the high-efficiency drying equipment is needed, the controller 10 can be adjusted to operate the motor 4, causing the output shaft of the motor 4 to rotate, thereby driving the front... The worm gear 36 on the side rotates, which in turn drives the worm gear 36 on the rear side to rotate synchronously via the chain 38 and sprocket 39. During the rotation of the two worm gears 36, the worm gear 35 drives the two second rotating shafts 31 to rotate synchronously, which in turn drives the two third rotating shafts 33 to rotate around the central axis of the second rotating shafts 31. When the third rotating shaft 33 rotates to the inner left side of the rounded corner groove plate 34, it actuates the sealing frame plate 23, causing the left side of the sealing frame plate 23 to rotate counterclockwise by ten degrees about the central axis of the first rotating shaft 22. When the third rotating shaft 33 rotates to the inner right side of the rounded corner groove plate 34, it actuates the sealing frame plate 23, causing the left side of the sealing frame plate 23 to rotate clockwise by twenty degrees about the central axis of the first rotating shaft 22. As the second rotating shaft 33 rotates to the inner right side of the rounded corner groove plate 34, it actuates the sealing frame plate 23, causing the left side of the sealing frame plate 23 to rotate clockwise by twenty degrees about the central axis of the first rotating shaft 22. The three rotating shafts 33 rotate continuously, causing the sealing frame plate 23 to reciprocate at a 20-degree angle around the central axis of the first rotating shaft 22. When the left side of the sealing frame plate 23 moves to the bottom, the feeding section 27 will impact the buffer impact plate 29 once. At this time, the undried concrete expansion agent raw material can be added into the drying box 1 through the feeding port 8. The concrete expansion agent raw material will fall into the feeding section 27. Affected by gravity and the screening effect of the perforated plate 26, the concrete expansion agent raw material will move to the lower right in a tumbling manner. When the concrete expansion agent raw material passes through the hot air section, the hot air continues to blow upward. During the tumbling process, the concrete expansion agent raw material comes into full contact with the hot air, generating water vapor. This water vapor will move upward and be absorbed by the air inlet box 6.At this point, the concrete expansion agent raw material continues to move to the right into the cold air section, where it is cooled by the blowing air. During the cooling process, the perforating force of the perforated plate 26 gradually decreases, directly reducing the turbulence effect of the concrete expansion agent as it passes through the cold air section, thus preventing the generation of a large amount of smoke and dust. As the concrete expansion agent raw material passes through the cold air section, it is dried and then discharged out of the device through the outlet 9.
[0031] The working principle of the high-efficiency drying equipment for concrete expansion agent provided by this utility model is as follows: When the high-efficiency drying equipment is needed, the controller 10 can be adjusted to operate the motor 4. The output shaft of the motor 4 rotates, thereby driving the front worm gear 36 to rotate. In turn, the chain 38 and sprocket 39 drive the rear worm gear 36 to rotate synchronously. During the rotation of the two worm gears 36, the worm wheel 35 drives the two second rotating shafts 31 to rotate synchronously, thereby driving the two third rotating shafts 33 to rotate around the central axis of the second rotating shafts 31. When the third rotating shaft 33 rotates to the left inside the rounded corner groove plate 34... When the third shaft 33 rotates to the right side of the rounded corner plate 34, it will move the sealing plate 23, causing its left side to rotate counterclockwise by 10 degrees around the central axis of the first shaft 22. As the third shaft 33 rotates, it will move the sealing plate 23, causing its left side to rotate clockwise by 20 degrees around the central axis of the first shaft 22. As the third shaft 33 continues to rotate, the sealing plate 23 will reciprocate 20-degree angles around the central axis of the first shaft 22. When the left side of the sealing plate 23 moves to its lowest position, the feeding section 27 will impact the buffer impact plate 29 once. Undried concrete expansion agent raw material can be added into drying box 1 through feed inlet 8. At this time, it is necessary to adjust the external hot air fan, external cold air fan, and external exhaust gas treatment equipment. Hot air enters the four air inlet boxes 6 on the left through the four air inlet pipes on the left, and the hot air airflow rises. Cold air enters the three air inlet boxes 6 on the right through the three air inlet pipes on the right, and the cold air airflow also rises. The four air outlet boxes 7 also generate suction. At this time, the concrete expansion agent raw material will fall into the feed section 27. Affected by gravity and the screening effect of the perforated plate 26, the concrete expansion agent raw material will tumble to the lower right side. As the concrete expansion agent material moves through the hot air section, the hot air continuously blows upwards. During the turbulence of the concrete expansion agent material, it comes into full contact with the hot air, generating water vapor. This water vapor moves upwards and is absorbed by the air inlet box 6. At this time, the concrete expansion agent material continues to move to the right to the cold air section, where the heated concrete expansion agent material is cooled. During the cooling process, the perforating force of the perforated plate 26 gradually decreases, directly reducing the turbulence effect of the concrete expansion agent when it passes through the cold air section, preventing the generation of a large amount of smoke and dust. When the concrete expansion agent material passes through the cold air section, it is dried and then discharged out of the device through the discharge port 9.
[0032] It is worth noting that the core chip of the controller 10 disclosed in the above embodiments is a microcontroller, specifically the STM32. It is recommended that the motor 4 be a 110HZ219-280 stepper motor. The controller 10 controls the operation of the motor 4 using methods commonly used in the prior art.
[0033] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A high-efficiency drying device for concrete expansion agent, comprising a drying chamber (1), wherein a support is provided on the lower side of the drying chamber (1), characterized in that: It also includes a fluidized bed drying mechanism (2) and a drive mechanism (3); Drying oven (1): Its front and rear side walls are respectively equipped with side mounting boxes; Fluidized drying mechanism (2): It includes a clearance opening (21), a first rotating shaft (22), a sealing frame plate (23), and a perforated plate (26). The first rotating shaft (22) is rotatably connected to the right side of the front side wall of the front side mounting box and the right side of the rear side mounting box. The clearance opening (21) is opened in the middle of the opposite inner side of the two side mounting boxes. The ends of the two first rotating shafts (22) are fixedly connected to the sealing frame plate (23). The middle part of the two sealing frame plates (23) is slidably connected to the interior of the clearance opening (21) on the same side. The perforated plate (26) is fixedly connected between the two sealing frame plates (23). Drive mechanism (3): It is located inside the two side mounting boxes.
2. The high-efficiency drying equipment for concrete expansion agent according to claim 1, characterized in that: The front side of the bracket is provided with a controller (10), and the input terminal of the controller (10) is electrically connected to an external power source.
3. The high-efficiency drying equipment for concrete expansion agent according to claim 1, characterized in that: The fluidized drying mechanism (2) further includes an arc-shaped limiting rod (24) and an arc-shaped limiting cylinder (25). The arc-shaped limiting rod (24) is fixedly connected to the left side between the upper and lower inner walls of the two side mounting boxes. The outer arc surfaces of the two arc-shaped limiting rods (24) are movably fitted with arc-shaped limiting cylinders (25). The outer arc surfaces of the two arc-shaped limiting cylinders (25) are fixedly connected to the left side of the sealing frame plate (23) located on the same side.
4. The high-efficiency drying equipment for concrete expansion agent according to claim 1, characterized in that: The fluidized drying mechanism (2) also includes a feeding section (27), a discharge hopper (28) and a buffer impact plate (29). The left end of the perforated plate (26) is the feeding section (27), and the right end of the perforated plate (26) is the discharge hopper (28). A buffer impact plate (29) is provided on the lower left side between the front and rear inner walls of the drying box (1). The upper surface of the buffer impact plate (29) is provided with a shock-absorbing rubber pad, which corresponds to the upper and lower positions of the feeding section (27).
5. The high-efficiency drying equipment for concrete expansion agent according to claim 2, characterized in that: The drive mechanism (3) includes a second rotating shaft (31), a rounded rod (32), a third rotating shaft (33), a rounded groove plate (34), a worm gear (35), a worm (36), a sealing box (37), a chain (38), and a sprocket (39). The second rotating shaft (31) is rotatably connected to the left side of the front side wall of the front side mounting box and the left side of the rear side wall of the rear side mounting box. The ends of the two second rotating shafts (31) are respectively fixedly connected to the rounded rods (32). The left sides of the opposite inner surfaces of the two rounded rods (32) are respectively fixedly connected to the third rotating shafts (33). The left sides of the two sealing brackets (23) are respectively provided with rounded groove plates (34). The outer arc surfaces of the two third rotating shafts (33) are slidably connected to the inside of the groove of the rounded groove plate (34) located on the same side. Two second rotating shafts (31) are respectively fixedly fitted with worm gears (35) on the outer arc surface. Worms (36) are rotatably connected between the upper and lower inner walls of the two side mounting boxes. The two worms (36) are respectively meshed with the worm gears (35) on the same side. The lower ends of the two worms (36) are respectively provided with sprockets (39). The two sprockets (39) are connected by a chain (38). A sealing box (37) is provided on the lower left side of the drying box (1). The two sprockets (39) and a chain (38) are all located inside the sealing box (37). A motor (4) is provided on the upper front left side of the drying box (1). The output shaft of the motor (4) is fixedly connected to the upper end of the worm (36) on the front side. The input end of the motor (4) is electrically connected to the output end of the controller (10).
6. The high-efficiency drying equipment for concrete expansion agent according to claim 1, characterized in that: The upper right side of the drying box (1) is provided with an upper limiting net (5) between the front and rear inner walls. The lower side of the drying box (1) is provided with evenly distributed air inlet boxes (6). The upper side of the drying box (1) is provided with evenly distributed air outlet boxes (7). The air inlet pipes of the four air inlet boxes (6) on the left are respectively connected to an external hot air blower. The air inlet pipes of the three air inlet boxes (6) on the right are respectively connected to an external cold air blower. The air outlet pipes of the four air outlet boxes (7) are respectively connected to an external waste gas treatment device.
7. The high-efficiency drying equipment for concrete expansion agent according to claim 1, characterized in that: The drying box (1) has a feed inlet (8) on the left side of its upper surface and a discharge outlet (9) on the lower right side of its right side.