Device and method for producing medium borosilicate glass by Danner method

Abstract

The invention relates to a device and method for producing medium borosilicate glass through a Danner method, the device comprises a Danner machine, a muffle furnace, a forming chamber and a heat exchange mechanism, a rotating pipe of the Danner machine extends into the muffle furnace, and the outlet end of the muffle furnace is connected with the forming chamber; wherein the forming chamber is of an integrated structure and is detachably connected to the outlet end of the muffle furnace, and a mounting space is reserved between the lower portion of the forming chamber and the ground through a suspended supporting frame; the heat exchange mechanism is arranged in the mounting space and comprises a walking mechanism and a lifting mechanism; the walking mechanism comprises a first-level pulley, and a sliding rail is arranged below the first-level pulley in a matched mode. The lifting mechanism is arranged on the walking mechanism and comprises a spiral elevator and a second-stage pulley, and a supporting bracket capable of moving front and back is arranged on the second-stage pulley. The structure layout is ingenious, the production line space is saved, operation is simple, and heat exchange time and money cost are reduced.

Description

Technical Field

[0001] This application relates to the field of borosilicate glass production technology, and more specifically, to a Danner process production apparatus and method for borosilicate glass. Background Technology

[0002] In the production of pharmaceutical-grade borosilicate glass tubes, the tubes are manufactured by mixing and blending raw materials, then connecting, matching, and transitioning them through a series of interconnected mechanical devices. The equipment for producing glass tubes can be divided into two main parts based on the sequence of processes: hot-end equipment and cold-end equipment. (Reference) Figure 1 As shown in the schematic diagram of an existing Danner glass tube production line, the large shaft 11 with the rotating tube 12 is an important component of the hot-end equipment (Danner machine 1). Inside the muffle furnace 2, molten glass flows to the rotating tube 12. With the rotation of the large shaft 11 and the operation of the associated air blowing device, the molten glass gradually forms a tube and is stretched to form the desired glass tube 8. Because the physical properties of the rotating tube 12 and the large shaft 11 change over long-term use, resulting in wear and tear, the large shaft 11 with the rotating tube 12 needs to be replaced periodically; this process is called heat exchange.

[0003] For the common layout of a single furnace with two production lines, a danner process production line consists of two sets of danner machines, muffle furnaces, and forming chambers on either side of a glass melt furnace. Due to ample operating space, heat exchange is performed by moving the danner machine, removing its main shaft from the muffle furnace, and then rotating it 90 degrees for disassembly and replacement. However, for a layout of a single furnace with four production lines, one glass melt furnace needs to supply glass melt to four danner process production lines simultaneously. Due to space constraints, the main shafts of the danner machines in the middle two lines cannot rotate 90 degrees left and right. This makes it impossible to perform heat exchange operations on the middle two lines independently without modifying the two outer lines. Consequently, heat exchange is limited, requiring the glass furnace to be extended or the two outer lines to be removed simultaneously for replacement. This makes the heat exchange operation more complex and costly. Summary of the Invention

[0004] This application provides an apparatus and method for producing borosilicate glass using the Dana process, which solves the problems of complex and costly rotating tube heat exchange processes in existing Dana process glass production lines.

[0005] According to the present application, a borosilicate glass danner process production apparatus includes: a danner machine, a muffle furnace, a forming chamber, and a heat exchange mechanism. The rotating tube of the danner machine extends into the muffle furnace, and the outlet end of the muffle furnace is connected to the forming chamber.

[0006] The forming chamber is an integrated structure that is detachably connected to the outlet end of the muffle furnace. An installation space is left between the forming chamber and the ground through a suspended support frame.

[0007] The heat exchange mechanism is installed within the installation space and includes a traveling mechanism and a lifting mechanism. The traveling mechanism includes a primary pulley, with a slide rail installed below the primary pulley. The lifting mechanism is installed on the traveling mechanism and includes a screw jack and a secondary pulley, with a support bracket that can move back and forth on the secondary pulley.

[0008] In some embodiments, the forming chamber is divided into multiple sections from front to back, including: a connecting section, a transition section, and an extension section; the connecting section is a horizontally arranged cuboid shape and is detachably connected to the outlet end of the muffle furnace; the extension section is a trapezoidal body, the width of which is smaller than the width of the connecting section; the transition section is installed between the connecting section and the extension section and is arranged to contract from front to back, wherein the two sides of the transition section contract inward, the top surface of the transition section contracts downward at a preset angle, and the preset angle at which the top surface of the transition section contracts downward is greater than the downward tilt angle of the trapezoidal body of the extension section.

[0009] In some embodiments, the heat exchange mechanism is provided with four spiral lifters, which are symmetrically arranged on the lifting mechanism; the initial position of the heat exchange mechanism is maintained at a preset distance from the outlet end of the muffle furnace, and the four spiral lifters are located on both sides of the extension section of the forming chamber.

[0010] In some embodiments, the four screw jacks are divided into two groups, front and rear. The screw jacks in each group lift synchronously, while the screw jacks in each group lift independently. Both groups of screw jacks are equipped with secondary pulleys, and the support brackets are movably supported and installed through the two groups of secondary pulleys.

[0011] In some embodiments, the Dana process production apparatus for borosilicate glass further includes a preheating furnace, which comprises a support frame and a furnace body, the furnace body being divided into two symmetrical halves and equipped with an openable hatch.

[0012] In some embodiments, the molding chamber includes a metal frame and an insulation cover. The metal frame is made of welded metal, and the insulation cover is provided on the outer side of the metal frame. In the metal frame, multiple reinforcing ribs are provided in the frame of the connecting section and the transition section.

[0013] In some embodiments, the support is provided with an arc-shaped bracket adapted to the shape of the rotating tube.

[0014] In some embodiments, the lifting mechanism further includes a PLC controller, which is electrically connected to the screw jack and the secondary pulley.

[0015] In some embodiments, the heat exchange mechanism includes a corresponding limiting mechanism for both the primary pulley and the secondary pulley.

[0016] According to another aspect of this application, a method for producing borosilicate glass using the Dana process is provided, implemented using the above-described borosilicate glass Dana process production apparatus, the method comprising:

[0017] S100 involves hoisting the integral molding chamber detached from the outlet end of the muffle furnace, exposing the heat exchange mechanism below.

[0018] S200, the preheated new rotating tube is hoisted above the heat exchange mechanism and placed on the support of the lifting mechanism;

[0019] S300, roughly adjust the position of the Danner machine, remove the old rotary tube, and ensure unobstructed space between the Danner machine and the muffle furnace;

[0020] S400, through a primary pulley moving mechanism, moves the heat exchange mechanism to the outlet end of the muffle furnace;

[0021] S500, adjust the lifting mechanism to make the support bracket at the same angle as the installation point of the Danner machine, and move the support bracket through the secondary pulley to transport the new rotating tube into the muffle furnace and insert it into the installation point of the Danner machine;

[0022] S600, lock and secure the new rotary tube to the mounting point of the Dana machine;

[0023] S700, fine-tuning the position of the Dynaudio machine according to the production process;

[0024] S800, hoisted back into the forming chamber, and reconnected the forming chamber to the muffle furnace.

[0025] The technical solution of this application, a borosilicate glass Danner process production apparatus, adopts an integrated molding chamber structure. This chamber can be hoisted and removed as a single unit, freeing up operating space for heat exchange and exposing the pre-installed heat exchange mechanism below. This removes the limitations of heat exchange space, meets the heat exchange requirements of the two intermediate production lines, shortens heat exchange time, and reduces heat exchange costs. Simultaneously, an installation space is provided between the molding chamber and the ground via a suspended support frame for installing the heat exchange mechanism, saving on-site space and eliminating the need to occupy the production equipment layout area behind the molding chamber, thus facilitating production line design. The heat exchange mechanism includes a traveling mechanism and a lifting mechanism. Primary and secondary pulleys enable the overall movement of the heat exchange mechanism and the individual forward and backward movement of the support bracket, respectively, to transport the rotating tube into the muffle furnace and connect it to the Danner machine in two stages. This simplifies operation and reduces heat exchange time and costs. Attached Figure Description

[0026] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0027] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 A schematic diagram of the existing borosilicate Dana process glass production line is shown.

[0029] Figure 2 A schematic diagram of the molding chamber structure of the borosilicate glass Dana process production apparatus according to an embodiment of this application is shown;

[0030] Figure 3 A schematic diagram of the heat exchange mechanism of the borosilicate glass Dana process production apparatus according to an embodiment of this application is shown;

[0031] Figure 4 This paper shows a schematic diagram of the structure of the borosilicate glass Dana process production apparatus under production conditions according to an embodiment of this application.

[0032] Figure 5 This paper shows a schematic diagram of the structure of the borosilicate glass Dana process production apparatus under heat exchange conditions according to an embodiment of this application.

[0033] Figure 6 A schematic diagram of the preheating furnace structure of the borosilicate glass Dana process production apparatus according to an embodiment of this application is shown;

[0034] Figure 7 A schematic flow diagram of the Dana process for producing borosilicate glass according to an embodiment of this application is shown.

[0035] The above figures include the following reference numerals:

[0036] 1. Danner machine; 11. Main shaft; 12. Rotary tube; 2. Muffle furnace; 3. Forming chamber; 31. Connecting section; 32. Transition section; 33. Extension section; 34. Metal frame; 341. Reinforcing rib; 4. Traveling mechanism; 41. Primary pulley; 5. Lifting mechanism; 51. Screw jack; 52. Secondary pulley; 53. Support bracket; 531. Arc bracket; 54. PLC controller; 6. Slide rail; 7. Preheating furnace; 71. Support frame; 72. Furnace body; 73. Door; 8. Glass tube. Detailed Implementation

[0037] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0038] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0039] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways, rotated 90 degrees, or in other orientations, and the spatial relative descriptions used herein will be interpreted accordingly.

[0040] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0041] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0042] Figures 1 to 6 An embodiment of the borosilicate glass Dana process production apparatus of this application is illustrated schematically.

[0043] like Figures 1 to 6As shown, this application discloses a Danner process production apparatus for borosilicate glass. The apparatus includes a Danner machine 1, a muffle furnace 2, a forming chamber 3, and a heat exchange mechanism. The rotating tube 12 of the Danner machine 1 extends into the muffle furnace 2, and the outlet end of the muffle furnace 2 is connected to the forming chamber 3.

[0044] The forming chamber 3 is an integrated structure that is detachably connected to the outlet end of the muffle furnace 2. An installation space is left between the forming chamber 3 and the ground through a suspended support frame.

[0045] The heat exchange mechanism is installed within the installation space and includes a traveling mechanism 4 and a lifting mechanism 5. The traveling mechanism 4 includes a primary pulley 41, and a slide rail 6 is provided below the primary pulley 41. The lifting mechanism 5 is mounted on the traveling mechanism 4 and includes a screw jack 51 and a secondary pulley 52, with a support bracket 53 that can move back and forth on the secondary pulley 52.

[0046] With the above structure, the borosilicate glass Danner process production apparatus of this application adopts an integrated molding chamber 3, which can be hoisted and lifted away as a whole, freeing up space for heat exchange operations and exposing the pre-set heat exchange mechanism below. This removes the space constraints of heat exchange operations, meets the heat exchange needs of the two intermediate production lines, shortens heat exchange time, and reduces heat exchange costs. At the same time, an installation space is left between the molding chamber 3 and the ground through a suspended support frame for installing the heat exchange mechanism, saving production line space and eliminating the need to occupy the production equipment layout area behind the molding chamber 3, making production line design or upgrades more convenient. The heat exchange mechanism includes a traveling mechanism 4 and a lifting mechanism 5. The overall movement of the heat exchange mechanism and the individual forward and backward movement of the support bracket 53 can be realized through the primary pulley 41 and the secondary pulley 52, respectively, so as to transport the rotating tube 12 into the muffle furnace 2 and connect it to the Danner machine 1 in two stages. The operation is simple and reduces the time and cost of heat exchange.

[0047] In some embodiments of this application, reference is made to Figure 2 As shown, the forming chamber 3 is divided into multiple sections from front to back, including: a connecting section 31, a transition section 32, and an extension section 33. The connecting section 31 is a horizontally positioned cuboid shape, detachably connected to the outlet end of the muffle furnace 2, used to connect the forming chamber 3 to the muffle furnace 2. The extension section 33 is a trapezoid, with a width smaller than that of the connecting section 31. The extension section 33 is the main area for the traction and formation of the glass tube 8. In this application, to facilitate the integrated movement of the forming chamber 3, the extension section 33 is made narrower and lighter to reduce weight and movement difficulty. The narrowing degree of the extension section 33 is sufficient to meet the traction and stretching requirements of the glass tube 8. The transition section 32 is installed between the connecting section 31 and the extension section 33, serving as a connecting element. Figure 2As shown in this embodiment, the transition section 32 is tapered from front to back. Both sides of the transition section 32 taper inwards, and the top surface of the transition section 32 tapers downwards at a preset angle, thus achieving a transition from the wide connecting section 31 to the narrow extension section 33. The preset angle at which the top surface of the transition section 32 tapers downwards is greater than the downward tilt angle of the trapezoidal body of the extension section 33, enabling a rapid transition. By incorporating an integrated and lightweight molding chamber 3, the weight of the molding chamber 3 is reduced, thereby reducing the difficulty of lifting and removing it, shortening the lifting and removal time, and consequently reducing the overall time required for heat exchange.

[0048] In some embodiments of this application, such as Figure 3 As shown, the heat exchange mechanism is equipped with four screw lifts 51, which are symmetrically arranged on the lifting mechanism 5. (Reference) Figure 4 As shown, the initial position of the heat exchange mechanism maintains a preset distance H from the outlet end of the muffle furnace 2, thereby avoiding the impact of long-term high temperatures on the heat exchange mechanism, extending its service life, and ensuring equipment safety. (Reference) Figures 1 to 4 As shown, by narrowing the extension section 33, this application achieves a lightweight design for the forming chamber 3 and also provides space for the layout of the heat exchange mechanism. By narrowing the extension section 33, the four spiral elevators 51 can be positioned on both sides of the extension section 33 of the forming chamber 3, while the wide connecting section 31 at the front end of the forming chamber 3 is not affected by the heat exchange mechanism and can still be tightly connected to the outlet end of the muffle furnace 2. Thus, this application, while ensuring the connection between the muffle furnace 2 and the forming chamber 3, can simultaneously avoid interference between the forming chamber 3 and the heat exchange mechanism, further improving space utilization.

[0049] In some embodiments of this application, reference is made to Figures 3 to 5 As shown, the four screw jacks 51 are divided into two groups, with the two in front forming one group and the two in the back forming another. The screw jacks 51 within each group move synchronously, while the screw jacks 51 between groups move independently, allowing for different degrees of lifting control of the support bracket 53, thereby achieving adjustment of the tilt angle of the new rotating tube 12. Figure 4 and Figure 5 As shown, both sets of screw jacks 51 are equipped with secondary pulleys 52, and the support bracket 53 is movably supported and installed by the two sets of secondary pulleys 52.

[0050] In some embodiments of this application, such as Figure 6 As shown, the Dana process production apparatus for borosilicate glass also includes a preheating furnace 7, which comprises a support frame 71 and a furnace body 72. The furnace body 72 is divided into two symmetrical halves and is equipped with an openable hatch 73. The preheating furnace 7 is used to preheat the new rotating tube 12 to a temperature consistent with that inside the muffle furnace 2, thereby overcoming the thermal expansion effect, improving installation accuracy, and reducing installation difficulty.

[0051] In some embodiments of this application, the borosilicate glass Dana process production apparatus also includes an overhead track pre-installed on the production site. Specifically, the overhead track is located above the forming chamber 3 and can be used in conjunction with AGV (Automated Guided Vehicle) equipment to achieve the hoisting and movement of the forming chamber 3 and the preheating furnace 7, respectively. By making reasonable use of three-dimensional space, the problem of limited floor space in glass production plants and the inconvenience of moving large equipment such as the forming chamber 3 on the ground surface is overcome (for example, some forming chambers can be over 25m in size).

[0052] In some embodiments of this application, specific references are made. Figure 2 As shown, the molding chamber 3 of this application includes a metal frame 34 and an insulation cover (not shown). The metal frame 34 is made of welded metal, such as a welded steel frame structure. The insulation cover is installed on the outer side of the metal frame 34 to isolate the temperature of the glass tube 8 inside the molding chamber 3. In the metal frame 34, multiple reinforcing ribs 341 are provided in the frame of both the connecting section 31 and the transition section 32 to cope with the high-temperature expansion effect and improve the structural strength of the molding chamber 3.

[0053] In some embodiments of this application, such as Figure 3 As shown, the support 53 is provided with an arc-shaped bracket 531 adapted to the shape of the rotating tube 12 to stably and safely place the rotating tube 12 and avoid damage caused by bumping the rotating tube 12. In some embodiments of this application, a support groove structure can also be provided below the rotating tube 12 to support the rotating tube 12 and avoid direct contact with the rotating tube 12 during operation.

[0054] In some embodiments of this application, such as Figure 3 As shown, in the heat exchange mechanism, the lifting mechanism 5 also includes a PLC controller 54, which is electrically connected to the screw jack 51 and the secondary pulley 52. ​​By pre-setting or manually inputting motion parameters, the lifting height of the two sets of screw jacks 51 is precisely controlled, ensuring that the support support 53 and its rotating tube 12 are at the same tilt angle as the head of the Danner machine 1, achieving precise docking. By slowly and precisely controlling the driving motion of the secondary pulley 52, the accurate displacement of the support support 53 is ensured, allowing it to move precisely to a position that does not collide with the head of the Danner machine 1, protecting the equipment safety. In this embodiment, the automatic control by the PLC controller 54 avoids errors caused by manual movement, prevents collisions, and also avoids the safety hazard of high-temperature burns caused by human contact with the muffle furnace 2 when the rotating tube 12 is manually moved. This improves heat exchange efficiency and protects personnel safety.

[0055] In some embodiments of this application, the heat exchange mechanism is equipped with corresponding limiting mechanisms for both the primary pulley 41 and the secondary pulley 52, in order to limit the travel mechanism 4 and the lifting mechanism 5, thereby improving the accuracy and safety of the heat exchange.

[0056] According to another aspect of this application, a method for producing borosilicate glass using the Dana process is provided, the method being carried out using the aforementioned borosilicate glass Dana process production apparatus, such as... Figure 7 As shown in the flowchart, the method includes:

[0057] In step S100, the molding chamber 3, which is an integral structure, is hoisted off the outlet end of the muffle furnace 2 to expose the heat exchange mechanism below.

[0058] In this embodiment, since the molding chamber 3 adopts an integrated structure and has been designed for lightweighting and avoidance, it can be easily hoisted as a whole without occupying ground space for movement. Moreover, the hoisting process is not interfered with by the heat exchange mechanism, the operation is simple and time-saving, and it can quickly make room for heat exchange operation to expose the heat exchange mechanism below.

[0059] In step S200, the preheated new rotating tube 12 is hoisted above the heat exchange mechanism and placed on the support bracket 53 of the lifting mechanism 5. This step can be achieved using an overhead crane and a preheating furnace 7. The rotating tube 12 is preheated in the preheating furnace 7 to reach the required temperature for heat exchange. In actual operation, the door 73 of the preheating furnace 7 can be opened to lower the main shaft 11 carrying the rotating tube 12 onto the support bracket 53 of the heat exchange system. A fiberglass insulation pad is pre-installed on the support bracket 53 to isolate the high-temperature metal and prevent the heat exchange mechanism from being affected by the high temperature of the rotating tube 12.

[0060] In step S300, the position of the danner machine 1 is roughly adjusted, the old rotating tube 12 is removed, and the space between the danner machine 1 and the muffle furnace 2 is kept clear. This step S300 can be reversed with the aforementioned step S200 to remove the old rotating tube 12 through the heat exchange mechanism.

[0061] In step S400, the traveling mechanism 4 is moved via the first-stage pulley 41, causing the heat exchange mechanism to move to the outlet end of the muffle furnace 2. This step is used to achieve the first-stage approach, by using the first-stage pulley 41 to bring the lifting mechanism 5 closer to the outlet end of the muffle furnace 2.

[0062] In step S500, the lifting mechanism 5 is adjusted so that the support bracket 53 is at the same angle as the installation point of the Danner machine 1. The support bracket 53 is then moved via the secondary pulley 52 to transport the new rotating tube 12 into the muffle furnace 2 and insert it into the installation point of the Danner machine 1. This step first adjusts the tilt of the support bracket 53 so that the tilt angle of the new rotating tube 12 is consistent with that of the machine head of the Danner machine 1, facilitating docking. The secondary pulley 52 then facilitates a second-stage approach, transporting the rotating tube 12 into the muffle furnace 2 and fixing it in place.

[0063] Step S600: Lock and secure the new rotating tube 12 to the mounting point of the Dana machine 1.

[0064] In step S700, the position of the tannery machine 1 is fine-tuned according to the production process. This ensures that the tilt angle of the tannery machine 1 and its position within the muffle furnace 2 meet the production process requirements.

[0065] Step S800: Hoist back to the forming chamber 3 and reconnect the forming chamber 3 to the muffle furnace 2.

[0066] The heat exchange method of this application can solve the problem of heat exchange difficulties caused by insufficient space in the middle production line when producing glass tubes 8 on multiple lines. The operation steps are simple, the heat exchange efficiency is high, and it saves time and money.

[0067] In summary, the technical solution of this application, the Dana process production apparatus for borosilicate glass, adopts an integrated molding chamber structure that can be hoisted and removed as a single unit. This frees up operating space for heat exchange and exposes the pre-installed heat exchange mechanism below, thereby eliminating the limitation of heat exchange space, meeting the heat exchange requirements of the two intermediate production lines, shortening heat exchange time, and reducing heat exchange costs. Simultaneously, an installation space is provided between the molding chamber and the ground via a suspended support frame for installing the heat exchange mechanism, saving on-site space and eliminating the need to occupy the production equipment layout area behind the molding chamber, thus facilitating production line design. The heat exchange mechanism includes a traveling mechanism and a lifting mechanism. Primary and secondary pulleys enable the overall movement of the heat exchange mechanism and the individual forward and backward movement of the support bracket, respectively, to transport the rotating tube into the muffle furnace and connect it to the Dana machine in two stages. This simplifies operation and reduces heat exchange time and costs.

[0068] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A Dana process production apparatus for borosilicate glass, characterized in that, include: The machine includes a danner (1), a muffle furnace (2), a forming chamber (3), and a heat exchange mechanism. The rotating tube (12) of the danner (1) extends into the muffle furnace (2), and the outlet end of the muffle furnace (2) is connected to the forming chamber (3). The molding chamber (3) is an integral structure and is detachably connected to the outlet end of the muffle furnace (2). An installation space is left between the molding chamber (3) and the ground through a suspended support frame. The heat exchange mechanism is located within the installation space. The heat exchange mechanism includes a traveling mechanism (4) and a lifting mechanism (5). The traveling mechanism (4) includes a primary pulley (41), and a slide rail (6) is provided below the primary pulley (41). The lifting mechanism (5) is located on the traveling mechanism (4). The lifting mechanism (5) includes a screw jack (51) and a secondary pulley (52). A support bracket (53) that can move back and forth is provided on the secondary pulley (52).

2. The borosilicate glass Dana process production apparatus according to claim 1, characterized in that, The forming chamber (3) is divided into multiple sections from front to back, including: a connecting section (31), a transition section (32), and an extension section (33); the connecting section (31) is a horizontally arranged cuboid shape and is detachably connected to the outlet end of the muffle furnace (2); the extension section (33) is a trapezoidal body, and its width dimension is smaller than that of the connecting section (31); the transition section (32) is installed between the connecting section (31) and the extension section (33) and is set to shrink from front to back, wherein the two sides of the transition section (32) shrink inward, the top surface of the transition section (32) shrinks downward at a preset angle, and the preset angle of the downward shrinkage of the top surface of the transition section (32) is greater than the downward tilt angle of the trapezoidal body of the extension section (33).

3. The borosilicate glass Dana process production apparatus according to claim 2, characterized in that, The heat exchange mechanism is provided with four spiral lifts (51), which are symmetrically arranged on the lifting mechanism (5). The initial position of the heat exchange mechanism is at a preset distance from the outlet end of the muffle furnace (2), and the four spiral lifts (51) are located on both sides of the extension section (33) of the forming chamber (3).

4. The Dana process production apparatus for borosilicate glass according to claim 3, characterized in that, The four screw jacks (51) are divided into two groups, front and back. The screw jacks (51) in each group lift synchronously, while the screw jacks (51) in each group lift independently. The two groups of screw jacks (51) are equipped with secondary pulleys (52), and the support bracket (53) is movably supported and installed by the two groups of secondary pulleys (52).

5. The borosilicate glass Dana process production apparatus according to claim 1, characterized in that, The borosilicate glass Dana process production apparatus further includes a preheating furnace (7), which includes a support frame (71) and a furnace body (72). The furnace body (72) is divided into two symmetrical halves and is equipped with an openable hatch (73).

6. The borosilicate glass Dana process production apparatus according to claim 2, characterized in that, The molding chamber (3) includes a metal frame (34) and a heat insulation cover. The metal frame (34) is made of metal welding, and the heat insulation cover is provided on the outer side of the metal frame (34). In the metal frame (34), multiple reinforcing ribs (341) are provided in the frame of the connecting section (31) and the transition section (32).

7. The borosilicate glass Dana process production apparatus according to claim 1, characterized in that, The support bracket (53) is provided with an arc-shaped bracket (531) that is adapted to the shape of the rotating tube (12).

8. The Dana process production apparatus for borosilicate glass according to claim 1, characterized in that, The lifting mechanism (5) also includes a PLC controller (54), which is electrically connected to the screw jack (51) and the secondary pulley (52).

9. The borosilicate glass Dana process production apparatus according to claim 1, characterized in that, In the heat exchange mechanism, both the primary pulley (41) and the secondary pulley (52) are equipped with corresponding limiting mechanisms.

10. A method for producing borosilicate glass using the Dana process, characterized in that, The method is carried out using the Dana process production apparatus for borosilicate glass as described in any one of claims 1-9, and includes: S100, the molding chamber (3) of the integrated structure is hoisted off the outlet end of the muffle furnace (2) to expose the heat exchange mechanism below; S200, the preheated new rotating tube (12) is hoisted above the heat exchange mechanism and placed on the support bracket (53) of the lifting mechanism (5); S300, roughly adjust the position of the Danner machine (1), remove the old rotary tube (12), and keep the passage between the Danner machine (1) and the muffle furnace (2) unobstructed; S400, the heat exchange mechanism is moved to the outlet end of the muffle furnace (2) by moving the walking mechanism (4) through the first-stage pulley (41); S500, adjust the lifting mechanism (5) to make the support bracket (53) and the installation point of the Danner machine (1) have the same inclination angle, and move the support bracket (53) through the secondary pulley (52) to transport the new rotating tube (12) into the muffle furnace (2) and insert it into the installation point of the Danner machine (1); S600, lock and secure the new rotating tube (12) to the mounting point of the Dana machine (1); S700, adjust the position of the Dynamo machine (1) according to the production process; S800, hoist back to the forming chamber (3), and reconnect the forming chamber (3) to the muffle furnace (2).

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