Hollow glass brick hot air drying equipment

Abstract

The application provides a hollow glass brick hot air drying equipment, and relates to the technical field of glass brick production drying, which comprises a bottom base seat, a rotating table, an oven assembly and a material preparation assembly. The bottom base seat is provided with a fixed column and a self-rotation bracket structure, the rotating table is rotationally connected with the fixed column, the surface of the rotating table is circumferentially provided with a plurality of freely rotatable material supporting disc assemblies, and the material supporting disc assemblies adopt a point contact mode to support the brick bodies. The oven assembly is an arc-shaped structure fixed at the top of the fixed column and covers the rotating path of the material supporting disc assemblies, and the outer wall of the oven assembly is provided with a gas injection assembly. The material preparation assembly is arranged on the side of the rotating table and is used for supporting the brick bodies to be loaded. The application can effectively reduce the contact surface of the brick bodies, enhance the uniform contact of the airflow with each surface of the brick bodies, promote the airflow to enter the inner cavity of the brick bodies, and significantly improve the drying efficiency and uniformity.

Description

Technical Field

[0001] This invention relates to the field of glass brick production and drying technology, and in particular to a hot air drying device for hollow glass bricks. Background Technology

[0002] Hollow glass bricks, a modern building material that combines structural and decorative functions, are mainly made by fusing two pressed glass halves at high temperatures, forming one or more sealed cavities filled with dry air. With their excellent sound insulation, heat insulation, light transmission, and compressive strength, hollow glass bricks are widely used in non-load-bearing walls, partitions, curtain walls, and landscape decoration, especially excelling in applications requiring both natural light and privacy.

[0003] In the production process of hollow glass bricks, a large amount of moisture adheres to the surface of the formed glass bricks, requiring drying. Hot air drying is a commonly used method, which removes moisture by forcibly blowing hot air onto the surface of the bricks through convection heat transfer. However, existing hot air drying equipment is mostly roller conveyor or mesh belt continuous drying oven, whose structure is usually a long tunnel type, in which the bricks are carried and conveyed by conveyor rollers or mesh belts in line contact or surface contact.

[0004] The existing equipment of this type has the following technical defects in practical applications: First, the contact area between the brick and the conveying component is too large, which causes the contact area to be blocked, and the hot air cannot be effectively blown, forming a drying dead corner. This results in uneven heating of different parts of the brick and inconsistent internal moisture dissipation, which not only reduces the drying efficiency, but also easily causes condensation inside the brick due to residual moisture, affecting product quality. Second, the brick is in a fixed posture during the conveying process and does not rotate. The tiny pores distributed on its surface are difficult to effectively cooperate with the transverse flow of hot air. The hot air is difficult to penetrate into the inner cavity of the brick, resulting in low internal moisture evaporation efficiency and prolonging the drying cycle. Summary of the Invention

[0005] The purpose of this invention is to provide a hot air drying device for hollow glass bricks to solve the technical problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A hot air drying device for hollow glass bricks includes a base plate, a rotating platform, an oven assembly, and a material preparation assembly. The upper surface of the base plate is provided with a fixed column and a rotating support structure. The fixed column is located at the center of the base plate and serves as the main support. The rotating support structure is arranged along the edge of the base plate and is used for rolling support on the lower surface of the rotating platform. The center of the rotating platform is rotatably connected to the fixed column and can rotate around its centerline. Multiple circumferentially distributed material support tray assemblies are arranged on the surface of the rotating platform. Each material support tray assembly can rotate freely, and its lower end extends to the lower side of the rotating platform and connects to the rotating support structure. The material support tray assemblies are used for point contact support. The component carries bricks; the material preparation assembly is located on the side of the rotating platform and is used to carry the bricks to be loaded; the oven assembly is an arc-shaped structure, located on the upper side of the rotating platform and fixedly connected to the top of the fixed column. The oven assembly covers the rotation path of the material support assembly and dries the bricks inside it. An air injection assembly is provided on the outer wall of the oven assembly and is used to introduce drying airflow into the oven assembly; when the material support assembly passes the material preparation assembly, it can move the bricks at the end of the material preparation assembly onto it, and when the material support assembly is inside the oven assembly, the self-rotating bracket structure can act on the bottom of the material support assembly to make it rotate.

[0007] Based on the above technical solutions, the present invention also provides the following optional technical solutions: In one alternative: the oven assembly includes an oven hood and multiple independently controlled electric heating rods. The oven hood is arc-shaped and is arranged along the edge of the rotating platform, with open ends. The multiple electric heating rods are evenly distributed circumferentially inside the oven hood and are used to heat the inside of the oven hood. The inner wall of the oven hood also has a temperature sensor for real-time monitoring of the temperature inside the oven hood.

[0008] In one alternative: the oven hood is further provided with multiple driven fan blades, which are rotatably connected to the top wall of the oven hood; the gas injection assembly includes a main gas pipe and at least one gas injection pump; the main gas pipe is arranged along the outside of the oven hood and is provided with multiple nozzles, one end of which passes through the side wall of the oven hood and extends into the interior of the oven hood; the gas injection pump is fixed on the base plate, and its outlet end is connected to the main gas pipe and introduces dry gas into the main gas pipe.

[0009] In one alternative embodiment: the material tray assembly includes a brick support tray, a driven lever, and multiple top support columns. The brick support tray is rotatably coupled with a rotating platform, and its bottom extends to the lower surface of the rotating platform. A rotating connector connected to a self-rotating bracket structure is provided at the bottom of the brick support tray. Multiple top support columns are evenly distributed on the brick support tray, and each top support column is provided with a top support block. The driven lever is located on the side of the brick support tray, and it moves the bricks onto the top support columns when it passes the front end of the material preparation assembly.

[0010] In one alternative embodiment: the rotating connector includes a lower rotating shaft and a self-rotating gear mounted on the lower rotating shaft. One end of the lower rotating shaft is fixedly connected to the center of the lower end face of the brick support tray. The self-rotating bracket structure includes a lower support base and an outer fixing ring. The outer fixing ring is located outside the lower rotating shaft, and its outer wall is fixed to the base plate by multiple lower support bases. The outer fixing ring has internal teeth that are opposite to the oven assembly, and the internal teeth mesh with the self-rotating gear.

[0011] In one alternative: multiple lower support seats are circumferentially distributed, and each lower support seat is provided with a support roller, which is arranged horizontally and makes rolling contact with the lower surface of the rotary table.

[0012] In one alternative embodiment: the material preparation assembly includes a conveying unit and a material preparation platform. The conveying unit is arranged radially along the rotating platform and is used to convey bricks to the material preparation platform. The material preparation platform is located at the end of the conveying unit facing the rotating platform. It has a lower guide hole at its bottom, a clearance hole opposite to the lower guide hole on one side wall, and a disengagement outlet for guiding bricks to detach from the material preparation platform on the other side. The side of the material preparation platform is fixed to the side frame of the conveying unit by a material preparation support frame.

[0013] In one alternative: both ports of the oven assembly are equipped with near-infrared detectors, which are used to monitor the moisture content inside the bricks passing through the ports of the oven assembly.

[0014] In one alternative: each of the top support columns can be moved vertically and is fixedly connected together at the bottom by a lower connecting ring. The lower connecting ring and the lower surface of the rotating platform are also provided with at least one top support spring, and the two ends of the top support spring are respectively connected to the lower connecting ring and the rotating platform.

[0015] In one alternative: the driven lever is a telescopic lever with a rubber sleeve at its top, and the upper part of the outer wall of the driven lever is connected to one of the top support columns via a driven connecting rod.

[0016] By adopting the above technical solution, the present invention has the following beneficial effects: This invention, by designing a material tray assembly that supports the bricks using a point-contact method, greatly reduces the area of ​​the bricks that are obscured during the drying process. This allows the drying hot airflow to blow onto the outer surface of the bricks almost without any dead angles, increasing the effective heat exchange area, significantly improving the moisture evaporation rate and drying uniformity, and effectively avoiding the problem of internal condensation caused by residual moisture on the contact surface.

[0017] This invention incorporates a rotating support structure within the drying oven assembly, allowing the material tray assembly to support the bricks while they rotate with the rotating table, simultaneously enabling the bricks to rotate on their own axis. This combined motion not only ensures more uniform heating of all parts of the brick but also dynamically alters the orientation of the pores on the brick surface. When the pore direction aligns with the forced convection airflow direction, it effectively guides the drying airflow into the internal cavities of the brick, directly removing internal moisture. This solves the problems of difficult and time-consuming internal drying in traditional equipment, significantly improving overall drying efficiency and product quality. Attached Figure Description

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

[0019] Figure 1 This is a schematic diagram of the overall structure of the hollow glass brick hot air drying equipment of the present invention.

[0020] Figure 2 This is a schematic diagram showing the arrangement of the rotating platform, oven assembly, and material preparation assembly in this invention.

[0021] Figure 3 This is a schematic diagram of the internal structure of the oven assembly in this invention.

[0022] Figure 4 This is a schematic diagram of the bottom structure of the rotating platform in this invention.

[0023] Figure 5 This is a schematic diagram of the material preparation component structure in this invention.

[0024] Figure 6 This is a schematic diagram of the material tray assembly in this invention from one perspective.

[0025] Figure 7 This is another structural schematic diagram of the material tray assembly in this invention.

[0026] Figure 8 This is a schematic diagram of the material preparation platform structure in this invention.

[0027] Figure 9 This is a schematic diagram of the self-rotating bracket structure in this invention.

[0028] Figure reference numerals: Base plate 100, Fixed column 110, Rotary table 200, Center sleeve of the plate 210, Rotary gear 220, Oven assembly 300, Oven hood 310, Electric heating rod 320, Driven fan blade 330, Material preparation assembly 400, Conveying unit 410, Material preparation platform 420, Lower guide hole 421, Clearance hole 422, Discharge outlet 423, Material preparation support frame 430, Material support tray assembly 500, Brick support tray 510, Top support column 520, Top support block 530, Lower connecting ring 540, Top support spring 550, Driven lever 560, Rubber sleeve 561, Driven connecting rod 570, Lower rotating shaft 580, Rotating gear 590, Rotating bracket structure 600, Lower support seat 610, Outer fixing ring 620, Support roller 630, Air injection assembly 700, Air injection pump 710, Main air pipe 720, Nozzle 730, Brick body 800, Rotary motor 900. Detailed Implementation

[0029] 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.

[0030] The left, right, up, and down positions of the various components shown in the attached diagram are just one arrangement method; the specific positions should be set according to specific needs.

[0031] In one embodiment, such as Figures 1-3As shown, a hot air drying device for hollow glass bricks includes a base plate 100, a rotating platform 200, an oven assembly 300, and a material preparation assembly 400. The base plate 100 has a fixed column 110 and a rotating support structure 600 on its upper surface. The fixed column 110 is located at the center of the base plate 100 and serves as the main support. The rotating support structure 600 is arranged along the edge of the base plate 100 and is used for rolling support on the lower surface of the rotating platform 200. The center of the rotating platform 200 is rotatably connected to the fixed column 110 and can rotate around its centerline. Multiple circumferentially distributed material support tray assemblies 500 are arranged on the surface of the rotating platform 200. The material support tray assemblies 500 are rotatable, and their lower ends extend to the lower side of the rotating platform 200 and are connected to the rotating support structure 600. The material support tray assemblies 500 are used for point contact support. The brick body 800; the material preparation component 400 is located on the side of the rotating platform 200 and is used to support the brick body 800 to be loaded; the oven assembly 300 is an arc-shaped structure, located on the upper side of the rotating platform 200 and fixedly connected to the top of the fixed column 110. The oven assembly 300 covers the rotation path of the material tray assembly 500 and dries the brick body 800 inside it. The outer wall of the oven assembly 300 is provided with an air injection component 700, which is used to introduce drying airflow into the oven assembly 300. When the material tray assembly 500 passes the material preparation component 400, it can move the brick body 800 at the end of the material preparation component 400 onto it. When the material tray assembly 500 is inside the oven assembly 300, the self-rotating bracket structure 600 can act on the bottom of the material tray assembly 500 to make it rotate.

[0032] In this embodiment of the invention, initially, the bricks 800 to be dried are placed on the material preparation assembly 400, with one brick 800 located at the end of the material preparation assembly 400. Multiple material support tray assemblies 500 rotate around the center line of the fixed column 110 following the rotating table 200. When a material support tray assembly 500 passes the material preparation assembly 400, it moves the brick 800 at its front end onto the material support tray assembly 500. The material support tray assembly 500 carries the brick 800 and rotates it around the fixed column 110. The brick 800 rotates with the material support tray assembly 500 from one end of the drying oven assembly 300 to the other. When the brick 800 is inside the drying oven assembly 300, the rotating bracket structure 600 acts on the bottom of the material support tray assembly 500. The brick 800 rotates as the oven assembly 300 moves, ensuring uniform heating of all parts and even dissipation of moisture both inside and outside the brick 800. The air injection assembly 700 generates dry air, which is used for forced convection heat transfer on the upper and lower surfaces of the brick 800 to remove moisture. The material tray assembly 500 supports the brick 800 via electrical contact, effectively reducing the contact area between the brick 800 and the material tray assembly 500, thereby increasing the contact area between the brick 800 and the airflow and improving the efficiency of moisture evaporation. Furthermore, the rotation of the brick 800 ensures that the pores on its outer wall align with the airflow direction, guiding the airflow into the interior of the brick 800 and evaporating the internal moisture. The material tray assembly 500 has a central sleeve 210 that rotates on the fixed column 110. A rotating gear 220 is provided on the bottom outer wall of the central sleeve 210. The self-rotating bracket structure 600 is provided with a rotating motor 900 and the output end of the rotating motor 900 is provided with a drive gear that meshes with the rotating gear 220.

[0033] In one embodiment, such as Figures 1-3 As shown, the oven assembly 300 includes an oven cover 310 and multiple independently controlled electric heating rods 320. The oven cover 310 is arc-shaped and is arranged along the edge of the rotating platform 200, with open ends. The multiple electric heating rods 320 are evenly distributed circumferentially inside the oven cover 310 and are used to heat the inside of the oven cover 310. The inner wall of the oven cover 310 also has a temperature sensor for real-time monitoring of the internal temperature of the oven cover 310. In this embodiment of the invention, the arrangement of the electric heating rods 320 inside the oven cover 310 can evenly heat the internal space of the oven cover 310, and each electric heating rod 320 is independently controlled. The interior of the oven cover 310 can be divided into multiple heating zones. By utilizing the temperature monitored by the temperature sensor, a stepped heating (such as a preheating zone - constant temperature zone - strong drying zone) can be achieved, reducing thermal shock.

[0034] In one embodiment, such as Figures 1-3As shown, the oven cover 310 is also provided with a plurality of driven fan blades 330 inside. The driven fan blades 330 are rotatably connected to the top wall of the oven cover 310. The air injection assembly 700 includes a main air pipe 720 and at least one air injection pump 710. The main air pipe 720 is arranged along the outside of the oven cover 310 and is provided with a plurality of nozzles 730. One end of the nozzles 730 passes through the side wall of the oven cover 310 and extends into the interior of the oven cover 310. The air injection pump 710 is fixed on the base plate 100, and its outlet end is connected to the main air pipe 720 and introduces dry gas into the interior of the main air pipe 720. In this embodiment of the invention, the dry airflow is injected into the interior of the oven cover 310 through the plurality of nozzles 730. Since the oven cover 310 is arc-shaped, the dry airflow can be guided by airflow counteraction, and the flowing dry airflow acts on the driven fan blades 330, causing the driven fan blades 330 to rotate, so as to realize the multi-directional flow of the dry airflow.

[0035] In one embodiment, such as Figures 1-7 As shown, the material tray assembly 500 includes a brick support tray 510, a driven lever 560, and multiple top support columns 520. The brick support tray 510 is rotatably coupled to the rotating platform 200, and its bottom extends to the lower surface of the rotating platform 200. The bottom of the brick support tray 510 is provided with a rotating connector that connects to the self-rotating bracket structure 600. The multiple top support columns 520 are evenly distributed on the brick support tray 510, and each top support column 520 is provided with a top support block 530 at its top. The driven lever 560 is located on the side of the brick support tray 510, and when it passes the front end of the material preparation assembly 400, it moves the brick 800 to the top support column 520. 20. In this embodiment of the invention, when the material tray assembly 500 passes the lower end of the material preparation assembly 400, the top of the driven lever 560 acts on the end of the material preparation assembly 400 that extends into the upper side of the rotating table 200, and moves the brick 800 on it. The brick 800 detaches from the material preparation assembly 400 and automatically falls onto the brick support tray 510, which is supported by multiple top support columns 520. When the material tray assembly 500 and the brick 800 enter the oven assembly 300, the self-rotating bracket structure 600 acts on the rotating connector, causing it to rotate. The rotating connector drives the brick support tray 510 to rotate, thereby causing the brick 800 to rotate.

[0036] In one embodiment, such as Figures 1-9As shown, the rotating connector includes a lower rotating shaft 580 and a rotating gear 590 mounted on the lower rotating shaft 580. One end of the lower rotating shaft 580 is fixedly connected to the center of the lower end face of the brick support tray 510. The rotating bracket structure 600 includes a lower support base 610 and an outer fixing ring 620. The outer fixing ring 620 is located outside the lower rotating shaft 580, and its outer wall is fixed to the base plate 100 by multiple lower support bases 610. The outer fixing ring 620 has internal teeth that correspond to the oven assembly 300, and the internal teeth mesh with the rotating gear 590. In this embodiment of the invention, since the oven assembly 300 corresponds to the internal teeth, when the brick 800 and the material support tray assembly 500 are inside the oven assembly 300, the rotating gear 590 and the internal teeth are in a meshing state. The rotating gear 590, in motion, rotates and drives the brick support tray 510 and its components to rotate via the lower rotating shaft 580, thereby causing the brick 800 to rotate. When the brick 800 is outside the oven assembly 300, the rotating gear 590 disengages from its internal gear, and the brick support tray 510 and its components simply follow the rotation of the rotating table 200. The driven lever 560 is located at the tail end of the direction of motion, making it easy to move the brick 800 on the material preparation assembly 400. Multiple lower support seats 610 are circumferentially distributed, and each lower support seat 610 is equipped with a support roller 630. The support roller 630 is horizontally arranged and rolls in contact with the lower surface of the rotating table 200. The support roller 630 can roll and support the rotating table 200 from the side, ensuring its stability.

[0037] In one embodiment, such as Figures 1-8 As shown, the material preparation assembly 400 includes a conveying unit 410 and a material preparation platform 420. The conveying unit 410 is arranged radially along the rotating platform 200 and is used to convey the bricks 800 to the material preparation platform 420. The material preparation platform 420 is located at the end of the conveying unit 410 facing the rotating platform 200. Its bottom has a lower guide hole 421, and one side wall of the material preparation platform 420 has a clearance hole 422 opposite to the lower guide hole 421. The other side has a disengagement outlet 423 for guiding the bricks 800 to detach from the material preparation platform 420. The side of the material preparation platform 420 is supported by a material preparation bracket. 430 is fixed on the side frame of the conveying unit 410; in this embodiment of the invention, the conveying unit 410 adopts a conveying module, which maintains a moving state and conveys the bricks 800 one by one to the preparation platform 420. When the material tray assembly 500 passes under the preparation platform 420, the top of the driven lever 560 can enter the interior of the preparation platform 420 through the clearance hole 422 and move along the lower guide through hole 421, thereby pushing the bricks 800 from the side towards the ejection outlet 423. Finally, the bricks 800 are released from the ejection outlet 423 and fall on the top of the top support column 520.

[0038] In one embodiment, such as Figures 1-3As shown, both ports of the drying oven assembly 300 are equipped with near-infrared detectors. The near-infrared detectors are used to monitor the moisture content inside the brick 800 passing through the ports of the drying oven assembly 300. The near-infrared detectors utilize the absorption of light of a specific wavelength by water molecules and infer the moisture content by analyzing the intensity of the reflected light. Based on the detection results of the near-infrared detectors, the drying effect of the brick 800 can be determined. Then, the output of the air injection assembly 700 and the electric heating rod 320 can be adjusted by the controller to regulate the drying environment inside the drying oven assembly 300.

[0039] In one embodiment, such as Figures 1-8 As shown, each of the top support columns 520 can move vertically and is fixedly connected together at the bottom by a lower connecting ring 540. The lower connecting ring 540 and the lower surface of the rotating platform 200 are also provided with at least one top support spring 550, and the two ends of the top support spring 550 are respectively connected to the lower connecting ring 540 and the rotating platform 200. In this embodiment of the invention, when the brick 800 is at the upper end of the top support column 520, due to the weight of the brick 800, the multiple top support columns 520 overcome the elastic force of the top support spring 550 and move downward. When the top support column 520 no longer supports the brick 800 and moves to the lower side of the preparation platform 420, under the elastic force of the top support spring 550, the upper surface of the top support block 530 approaches the lower surface of the preparation platform 420, and the two do not contact each other, so as to stably receive the brick 800 that has been removed from the preparation platform 420.

[0040] In one embodiment, such as Figures 1-8 As shown, the driven lever 560 is a telescopic lever with a rubber sleeve 561 on its top. The upper part of the outer wall of the driven lever 560 is connected to one of the top support columns 520 through a driven connecting rod 570. In this embodiment of the invention, if the brick 800 is not dried well after being dried by the oven assembly 300, after it is removed from the oven assembly 300, the robot does not need to remove the brick 800. Due to the weight of the brick 800, the top support column 520 drives the driven lever 560 to retract through the driven connecting rod 570. When passing the material preparation assembly 400, the top of the driven lever 560 is under the material preparation platform 420 and will not push the brick 800 on the material preparation platform 420. In this way, the brick 800 with poor drying effect can be dried again.

[0041] The above embodiment provides a hot air drying device for hollow glass bricks, the working principle of which is as follows: 1. Initial state and feeding process Before the equipment starts, the hollow glass bricks 800 to be dried are conveyed radially one by one by the conveying unit 410 (e.g., a belt conveyor) of the material preparation assembly 400 to the material preparation table 420 at its end, where they are waiting at the discharge outlet 423. At the same time, the rotary motor 900 starts, and through the meshing of the drive gear and the rotary gear 220, it drives the central sleeve 210 of the disc body fixed to the rotary table 200 to rotate around the center line of the fixed column 110, thereby driving the entire rotary table 200 and the multiple circumferentially distributed material support disc assemblies 500 on it to make a slow circular motion (revolution).

[0042] When a material tray assembly 500 rotates to a position below the material preparation assembly 400, its side driven lever 560 (with a rubber sleeve 561 on top) enters the material preparation platform 420 through the clearance hole 422 on the side wall and moves along the lower guide hole 421. During this process, the driven lever 560 pushes the brick 800 located at the end of the material preparation platform 420 from the side, causing it to smoothly detach from the ejection port 423. The brick 800 falls under gravity and is caught by multiple support columns 520 on the lower material tray assembly 500 and its top support block 530 in point contact. At this point, the automatic feeding action is completed, and the brick 800 continues to rotate with the material tray assembly 500.

[0043] 2. Drying and self-rotation driven process The material tray assembly 500 carrying the bricks 800 continues to rotate with the rotating table 200 and enters the arc-shaped interior of the oven assembly 300 from one end (inlet). The oven assembly 300 is fixed to the top of the fixed column 110 and covers the rotation path. The multiple independently controlled electric heating rods 320 inside can form a stepped temperature field (such as a preheating zone, a constant temperature zone, and a strong drying zone) based on the feedback from the temperature sensor, so as to accurately heat the interior.

[0044] Meanwhile, the air injection assembly 700 operates: the air injection pump 710 generates dry gas, which is transported through the main air pipe 720 and finally sprayed into the interior of the drying oven hood 310 by multiple nozzles 730. The injected high-speed dry airflow forms forced convection heat transfer, carrying away the moisture evaporated from the surface and pores of the brick body 800; on the other hand, the airflow drives multiple driven fan blades 330 rotatably connected to the top wall of the drying oven hood 310 to rotate, further agitating the airflow and achieving multi-directional, dead-angle-free circulating hot air scouring.

[0045] When the material tray assembly 500 carrying the bricks 800 enters the oven assembly 300 (i.e., the drying area), its bottom rotating gear 590 meshes with the fixed internal gear ring inside the outer fixed ring 620 in the rotating bracket structure 600. Since the outer fixed ring 620 remains stationary, while the material tray assembly 500 revolves around the center with the rotating table 200, this relative motion forces the rotating gear 590 to rotate. The rotating gear 590 drives the entire brick support tray 510, the top support column 520, the top support block 530, and the bricks 800 to rotate together (rotate) via the lower rotating shaft 580.

[0046] The brick 800 rotates both on its own axis and around the central axis inside the oven. The beneficial effects of this are: The brick body is evenly heated by the hot airflow at all 800mm intervals, avoiding localized overheating or insufficient drying.

[0047] The 800° rotation of the brick causes the direction of the through holes on its outer wall to dynamically match the direction of the airflow, guiding the drying hot air to enter the hollow brick more effectively, efficiently removing the moisture in the inner cavity, and achieving simultaneous drying inside and out.

[0048] The point-contact support method maximizes the contact surface area between the brick 800 and the hot air, improving heat exchange and moisture evaporation efficiency.

[0049] 3. Feeding and adaptive repeated drying mechanism After the drying cycle is completed, the brick 800 exits from the other end (outlet) of the drying oven assembly 300. A near-infrared detector installed at the outlet monitors the internal moisture content of the dried brick 800 in real time. The system determines whether the drying effect meets the standard based on the detection results.

[0050] Qualified bricks: can be removed from the material tray assembly 500 by a subsequent robotic arm or unloading device (not shown in the attached diagram).

[0051] Substandard bricks: The system-controlled robotic arm does not remove them. The brick 800, due to its own weight, continuously presses down on the support column 520, causing it to move downwards against the elastic force of the support spring 550. This downward movement drives the driven lever 560 to retract via the driven linkage 570. When the material tray assembly 500 passes the preparation assembly 400 again, the top of the retracted driven lever 560 is below the preparation table 420, preventing it from pushing new bricks 800. Simultaneously, since the brick 800 is not removed, there is no space on the upper surface of the support column 520 to receive new bricks. Thus, the substandard brick 800 remains on the material tray assembly 500 and re-enters the drying oven assembly 300 via the rotating table 200 for a second round of drying, achieving an automated reprocessing cycle without manual intervention.

[0052] 4. System Collaboration and Support Throughout the entire operation, the multiple lower support seats 610 of the rotating bracket structure 600 and the supporting rollers 630 mounted thereon provide stable rolling support to the lower surface of the rotating platform 200 from the sides, ensuring its smooth rotation under heavy loads. The base plate 100, as the foundation of the entire equipment, bears the weight of all modules and ensures the relative positional accuracy of each component. The rotatable connection between the center sleeve 210 of the rotating platform 200 and the fixed column 110 ensures precise guidance of its revolution.

[0053] In summary, this invention achieves automatic feeding via the material preparation component 400, provides a controllable hot air environment using the drying oven component 300 and the air injection component 700, and innovatively combines the bottom gear meshing structure of the rotating bracket structure 600 and the material tray component 500, forcing the bricks to rotate simultaneously with their revolution-based drying process. This design not only greatly improves drying efficiency and uniformity but also achieves automatic repeated drying of substandard products through ingenious mechanical linkage, exhibiting a high degree of automation, intelligence, and energy efficiency.

[0054] 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.

Claims

1. A hot air drying device for hollow glass bricks, comprising a base plate, a rotating table, an oven assembly, and a material preparation assembly, characterized in that, The upper surface of the base plate is provided with a fixed column and a self-rotating bracket structure. The fixed column is located at the center of the base plate and serves as the main support. The self-rotating bracket structure is arranged along the edge of the base plate and is used to provide rolling support on the lower surface of the rotating platform. The rotating platform is rotatably connected to the fixed column at its center and can rotate around its center line. The surface of the rotating platform is provided with multiple circumferentially distributed material support tray assemblies. The material support tray assemblies can rotate freely, and their lower ends extend to the lower side of the rotating platform and are connected to the self-rotating bracket structure. The material support tray assemblies support the bricks in a point contact manner. The material preparation assembly is located on the side of the rotating platform and is used to support the bricks to be loaded. The oven assembly has an arc-shaped structure, which is located on the upper side of the rotating platform and fixedly connected to the top of the fixed column. The oven assembly covers the rotation path of the material tray assembly and dries the bricks inside it. An air injection component is provided on the outer wall of the oven assembly and is used to introduce drying airflow into the oven assembly. When the material tray assembly passes the material preparation assembly, it can move the bricks at the end of the material preparation assembly onto it. When the material tray assembly is inside the oven assembly, the rotating bracket structure can act on the bottom of the material tray assembly to make it rotate.

2. The hollow glass brick hot air drying equipment according to claim 1, characterized in that, The oven assembly includes an oven hood and multiple independently controlled electric heating rods; The oven cover is arc-shaped and is set along the edge of the rotating platform. Both ends of the cover are open. Multiple electric heating rods are evenly distributed along the circumference of the inside of the oven cover to heat the inside of the oven cover. The inner wall of the oven cover also has a temperature sensor for real-time monitoring of the temperature inside the oven cover.

3. The hot air drying equipment for hollow glass bricks according to claim 2, characterized in that, The oven hood is also equipped with multiple driven fan blades, which are rotatably connected to the top wall of the oven hood. The gas injection assembly includes a main gas pipe and at least one gas injection pump. The main gas pipe is arranged along the outside of the oven hood and has multiple nozzles on it. One end of each nozzle passes through the side wall of the oven hood and extends into the interior of the oven hood. The gas injection pump is fixed on the base plate, and its outlet end is connected to the main gas pipe, introducing dry gas into the main gas pipe.

4. The hot air drying equipment for hollow glass bricks according to claim 1, characterized in that, The material tray assembly includes a brick support tray, a driven lever, and multiple top support columns; The brick support tray is rotatably coupled with the rotating platform, and its bottom extends to the lower surface of the rotating platform. The bottom of the brick support tray is provided with a rotating connector that is connected to the self-rotating bracket structure. Multiple top support columns are evenly distributed on the brick support tray, and each top support column is equipped with a top support block; the driven lever is located on the side of the brick support tray, and it moves the brick onto the top support column when it passes the front end of the material preparation component.

5. The hot air drying equipment for hollow glass bricks according to claim 4, characterized in that, The rotating connector includes a lower rotating shaft and a self-rotating gear on the lower rotating shaft. One end of the lower rotating shaft is fixedly connected to the center of the lower end face of the brick support tray. The self-rotating bracket structure includes a lower support base and an outer fixing ring. The outer fixing ring is located on the outside of the lower rotating shaft, and its outer wall is fixed to the base plate by multiple lower support bases. The outer fixing ring has internal teeth that are opposite to the oven assembly, and the internal teeth mesh with the self-rotating gear.

6. The hot air drying equipment for hollow glass bricks according to claim 5, characterized in that, Multiple lower support seats are distributed circumferentially, and each lower support seat is equipped with a support roller. The support rollers are arranged horizontally and make rolling contact with the lower surface of the rotary table.

7. The hot air drying equipment for hollow glass bricks according to claim 5, characterized in that, The material preparation assembly includes a conveying unit and a material preparation table; The conveying unit is arranged radially along the rotating platform and is used to convey bricks to the preparation platform. The material preparation platform is located at the end of the conveying unit facing the rotating platform. It has a lower guide hole at its bottom, a clearance hole opposite to the lower guide hole on one side wall, and a discharge port for guiding the bricks to detach from the material preparation platform on the other side. The side of the material preparation platform is fixed to the side frame of the conveying unit by a material preparation support frame.

8. The hot air drying equipment for hollow glass bricks according to claim 7, characterized in that, The oven assembly is equipped with near-infrared detectors at both ports, which are used to monitor the moisture content inside the bricks passing through the ports of the oven assembly.

9. The hollow glass brick hot air drying equipment according to claim 8, characterized in that, Each of the top support columns can move vertically and is fixedly connected together at the bottom by a lower connecting ring. The lower connecting ring and the lower surface of the rotating platform are also provided with at least one top support spring, and the two ends of the top support spring are respectively connected to the lower connecting ring and the rotating platform.

10. The hot air drying equipment for hollow glass bricks according to claim 9, characterized in that, The driven lever is a telescopic lever with a rubber sleeve at its top. The upper part of the outer wall of the driven lever is connected to one of the top support columns through a driven connecting rod.

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