CN112266153A - Glass tube forming device and using method thereof - Google Patents
Glass tube forming device and using method thereof Download PDFInfo
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- CN112266153A CN112266153A CN202011126688.XA CN202011126688A CN112266153A CN 112266153 A CN112266153 A CN 112266153A CN 202011126688 A CN202011126688 A CN 202011126688A CN 112266153 A CN112266153 A CN 112266153A
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B17/00—Forming molten glass by flowing-out, pushing-out, extruding or drawing downwardly or laterally from forming slits or by overflowing over lips
- C03B17/04—Forming tubes or rods by drawing from stationary or rotating tools or from forming nozzles
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Abstract
The invention discloses a glass tube forming device and a using method thereof, wherein the glass tube forming device comprises the following steps: the device comprises a shell, a first heat exchanger, a second heat exchanger and a heat exchanger, wherein a high-temperature cavity is arranged in the shell; the rotary driving mechanism is arranged outside the shell; the rotating pipe is connected with the rotating driving mechanism; the glass liquid injection pipe is used for releasing glass liquid to one end of the rotating pipe; the flameless combustor assemblies are uniformly arranged along the inner wall of the high-temperature cavity, are all over against the radial arrangement of the rotating pipe and are all parallel to the axial arrangement of the rotating pipe. By applying the invention, the volume of the glass tube forming device is greatly reduced, and stable temperature is provided for the high-temperature cavity through the flameless burner assembly, so that the uniformity of forming the glass tube from molten glass is improved, and the production quality of the glass tube is further improved.
Description
Technical Field
The invention relates to the technical field of glassware production and manufacturing, in particular to a glass tube forming device.
Background
The vaccine belongs to a biological product, has high preparation difficulty, complex production process and extremely high safety requirement, and particularly requires the complete sealing in the preservation process and needs to face the safety problems in the refrigeration and cold chain transportation processes. Under such severe conditions, vaccine packaging usually employs a neutral borosilicate glass packaging container, which is usually a tubular structure. In the process of producing the packaging container, the physical and chemical properties, stability and safety of the neutral borosilicate glass are all required to be high.
At present, a neutral borosilicate glass tube is generally produced and prepared by a Danner method horizontal tube drawing process, mainly, molten glass is wound on an inclined rotary tube through a feeding system to flow downwards, gradient temperature reduction is carried out, then the molten glass is separated from the rotary tube and is formed through free falling, so that a hollow or solid glass tube is manufactured, and the process is generally finished in a muffle furnace. However, the existing muffle furnace is complex in heating process, the temperature of the inner space of the muffle furnace is not uniform, the forming of the glass tube is not facilitated, the forming uniformity of the glass tube is greatly influenced, and the size of the muffle furnace is large due to the fact that a certain flame combustion space needs to be reserved for a burner, and the muffle furnace is very inconvenient to maintain.
Disclosure of Invention
In view of the above, the present invention provides a glass tube forming apparatus and a method of using the same.
The specific technical scheme is as follows:
the present invention includes a glass tube molding apparatus comprising:
the device comprises a shell, a first heat exchanger, a second heat exchanger, a first heat exchanger and a second heat exchanger, wherein a high-temperature cavity is arranged in the shell;
the rotary driving mechanism is arranged at one end of the outer part of the shell, and one end of the rotary driving mechanism penetrates through the shell;
the rotating pipe is of a cylindrical structure, one end of the rotating pipe is connected with the rotating driving mechanism, and the rotating pipe is arranged in the high-temperature cavity;
the glass liquid injection pipe is penetratingly arranged at the upper part of one end, close to the rotary driving mechanism, of the machine shell, the lower end of the glass liquid injection pipe penetrates through the high-temperature cavity and is arranged over one end of the rotary pipe in a facing mode, and the glass liquid injection pipe is used for releasing glass liquid to one end of the rotary pipe;
the device comprises a plurality of flameless burner assemblies, wherein the flameless burner assemblies are uniformly arranged along the inner wall of a high-temperature cavity, the flameless burner assemblies are uniformly arranged along the annular direction of a rotating pipe, each flameless burner assembly is just opposite to the radial direction of the rotating pipe, each flameless burner assembly is parallel to the axial direction of the rotating pipe, and the distance from each flameless burner assembly to the rotating pipe is equal.
In another preferred embodiment, the rotary drive device includes: the high-temperature-resistant connecting rod is fixedly arranged at one end of the outer portion of the shell, an output shaft of the rotating motor is fixedly connected with one end of the coupler, the other end of the connecting shaft is connected with one end of the high-temperature-resistant connecting rod, the other end of the high-temperature-resistant connecting rod is connected with one end of the rotating pipe, and the output shaft, the coupler and the high-temperature-resistant connecting rod are coaxially arranged.
In another preferred embodiment, the rotating pipe is arranged obliquely to the horizontal plane, and the inclination angle between the rotating pipe and the horizontal plane is 3-15 °.
In another preferred embodiment, each of the flameless burner assemblies includes:
the burner brick is quickly embedded in the inner wall of the high-temperature cavity and is arranged in a long strip shape, the length direction of the burner brick is parallel to the axial direction of the glass tube, a plurality of communicating holes are sequentially formed in the burner brick in a penetrating manner along the length direction, and the axis of each communicating hole is perpendicular to the axis of the rotating tube;
the burner main bodies are arranged in a circular tube shape, one end of each burner main body penetrates through the shell and is inserted into the communication hole, and one end of each burner main body is arranged in a sunken manner relative to one end, close to the glass tube, of the communication hole;
the other end of each combustor main body is connected to the fuel premixer, fuel gas is mixed in the fuel premixer, and the fuel premixer conveys the fuel gas into the combustor main body.
In another preferred embodiment, the burner body comprises: fuel spray tube and fuel nozzle, fuel spray tube outside-in runs through in proper order the casing with the high temperature chamber is fixed in set up in the nozzle fragment of brick, fuel spray tube's one end with the fuel premixer is connected, fuel spray tube's other end fixedly connected with fuel nozzle, fuel nozzle evenly is provided with a plurality of orifices, just fuel nozzle for fuel spray tube's the other end recess in the intercommunication hole.
In another preferred embodiment, one end of the communication hole close to the rotating pipe is gradually flared, and the diameter of the end of the communication hole close to the rotating pipe is larger than that of the end of the communication hole far away from the rotating pipe.
In another preferred embodiment, the cross section of the inside of the high-temperature cavity is arranged in a square shape, the axis of the rotating pipe penetrates through the center of the square shape, the four flameless burner assemblies are respectively arranged on four corners of the square shape, an inner wall surface is obliquely arranged on one side, close to the rotating pipe, of the burner brick of each flameless burner assembly, the outer edge of each inner wall surface is tightly attached to the inner wall of the high-temperature cavity, and each inner wall surface is parallel to the axis of the rotating pipe.
The invention also comprises a using method of the glass tube forming device, which is applied to the glass tube forming device and is characterized by comprising the following steps:
step S1: starting the rotary driving mechanism, wherein the rotary driving mechanism drives the rotary pipe to rotate;
step S2: starting a plurality of flameless burner assemblies to heat the inner part of the high-temperature cavity to a set temperature and keep the temperature constant;
step S3: keeping a plurality of flameless burner assemblies to work, and opening a glass liquid injection pipe to pour glass liquid into one end of the rotating pipe;
step S4: and after the molten glass is formed into a glass tube on the rotary tube, stopping the work of the rotary driving mechanism and the flameless burner assembly, and taking out the glass tube after cooling.
In another preferred embodiment, the set temperature is equal to or greater than an ignition point of fuel gas within the flameless burner assembly.
In another preferred embodiment, the fuel premixer is controlled to provide an appropriate amount of fuel gas to the burner body, so that the combustion of the fuel gas is completed in the burner block, and the heat generated by the combustion of the fuel gas is uniformly diffused into the high-temperature cavity.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the following positive effects: by applying the invention, the volume of the glass tube forming device is greatly reduced, and stable temperature is provided for the high-temperature cavity through the flameless burner assembly, so that the uniformity of forming the glass tube from molten glass is improved, and the production quality of the glass tube is further improved.
Drawings
FIG. 1 is an overall schematic view of a glass tube forming apparatus according to the present invention;
FIG. 2 is an axial sectional view of a rotary tube of the glass tube forming apparatus according to the present invention;
FIG. 3 is a partial sectional view in the radial direction of a rotary tube of a glass tube forming apparatus according to the present invention.
In the drawings:
1. a housing; 2. a high temperature chamber; 3. a rotation driving mechanism; 4. rotating the tube; 5. a molten glass injection tube; 6. a flameless burner assembly; 31. a coupling; 32. a high temperature resistant connecting rod; 33. an output shaft of the rotating electrical machine; 61. burner blocks; 62. a burner body; 63. a communicating hole; 621. a fuel lance; 622. a fuel injector; 611. an inner wall surface.
Detailed Description
The invention is further described with reference to the following drawings and specific examples, which are not intended to be limiting.
The present invention includes a glass tube forming apparatus, as shown in fig. 1 to 3, showing a preferred embodiment of the glass tube forming apparatus, including: the device comprises a machine shell 1, wherein a high-temperature cavity 2 is arranged in the machine shell 1; the rotary driving mechanism 3 is arranged at one end of the exterior of the machine shell 1, and one end of the rotary driving mechanism 3 penetrates through the machine shell 1; the rotating pipe 4 is of a cylindrical structure, one end of the rotating pipe 4 is connected with the rotating driving mechanism 3, and the rotating pipe 4 is arranged in the high-temperature cavity 2; the glass liquid injection pipe 5 is penetratingly arranged at the upper part of one end, close to the rotary driving mechanism 3, of the machine shell 1, the lower end of the glass liquid injection pipe penetrates through the high-temperature cavity 2 and is arranged over one end of the rotary pipe 4, and the glass liquid injection pipe 5 is used for releasing glass liquid to one end of the rotary pipe 4; a plurality of flameless combustor assemblies 6, a plurality of flameless combustor assemblies 6 are followed the inner wall of high temperature chamber 2 evenly sets up, and a plurality of flameless combustor assemblies 6 are followed the ring of rotatory pipe 4 evenly arranges, and each flameless combustor assembly 6 all just right the radial setting of rotatory pipe 4, each flameless combustor assembly 6 all is on a parallel with the axial setting of rotatory pipe 4, each smokeless combustor assembly extremely the distance of rotatory pipe 4 is equal. Further, in the production of glass tubes, particularly neutral borosilicate glass tubes for vaccines, the preliminary production from molten glass to shaped glass tubes can be carried out by using the above-mentioned glass tube shaping apparatus, and specifically, an installation space is provided by the machine shell 1, a high-temperature cavity 2 with good heat preservation is arranged in the machine shell 1, the high-temperature cavity 2 is used as a main space for forming a glass tube, the rotating pipe 4 is driven by the rotating driving mechanism 3 to rotate around the self central shaft, and the glass liquid to be formed is injected into the glass liquid injection pipe 5, wherein the molten glass injection pipe 5 is arranged along the vertical direction, the lower end of the molten glass injection pipe 5 keeps a certain proper distance with one end of the rotating pipe 4, so that the glass liquid is just above one end of the rotating pipe 4 from the glass pipe outlet and is gradually formed into a glass pipe structure along with the rotation of the rotating pipe 4; a plurality of flameless burner subassembly 6 are in the in-service use in-process, fuel gas through the external supply heats the intensification in to the high temperature chamber, make the glass liquid obtain suitable forming temperature, and the flame that flameless burner subassembly 6 produced in the combustion process should not directly enter into high temperature chamber 2 in, the inside with flameless burner subassembly 6 is accomplished in whole fuel gas's burning, thereby keep not producing excessive flame pulse, make the heat that the burning produced evenly disperse into whole high temperature chamber 2 by the hoop position of rotatory pipe 4, thereby make the glass liquid on the rotatory pipe 4 be heated evenly, easily shaping, and the homogeneity of the neutral borosilicate glass pipe that produces is better.
Further, as a preferred embodiment, a feeding system is further included for connecting with the upper end of the molten glass injection pipe 5 and supplying a suitable amount of molten glass into the molten glass pipe, and a sealing rubber ring with good heat insulation performance should be arranged between the molten glass pipe and the feeding system, so that the molten glass can be directly dropped into one end of the rotary pipe 4 while maintaining a certain temperature.
Further, as a preferred embodiment, the other end of the casing 1 is provided with a take-out port, the take-out port is communicated with the high temperature chamber 2, and the take-out port is further provided with a heat insulation door capable of being opened and closed, so that a user can conveniently pick up the glass tube when the glass tube is formed and falls into the bottom of the high temperature chamber.
Further, as a preferred embodiment, the casing 1 is a rectangular frame structure disposed obliquely, and the other end of the casing 1 extends downward and protrudes to form a mounting position for the whole glass tube forming device, preferably, the casing can be mounted on the bottom surface of the horizontal or the rack mounting seat by bolts.
Further, as a preferred embodiment, a high temperature resistant buffer rubber pad may be disposed at the lower portion of the high temperature chamber 2 near the end of the outlet to prevent the neutral borosilicate glass tube from being damaged by the automatic falling off of the rotary tube 4 after molding.
Further, as a preferred embodiment, the rotation driving device includes: rotating electrical machines, shaft coupling 31 and high temperature resistant connecting rod 32, rotating electrical machines fixed mounting in the one end of the outside of casing 1, rotating electrical machines's output shaft 33 with the one end fixed connection of shaft coupling 31, the other end of connecting axle with the one end of high temperature resistant connecting rod 32 is connected, the other end of high temperature resistant connecting rod 32 with the one end of rotatory pipe 4 is connected, the output shaft the shaft coupling 31 with the coaxial setting of high temperature resistant connecting rod 32. Further, after the rotating motor is powered on and turned on, the output shaft drives the coupling 31 and drives the high temperature resistant connecting rod 32 to rotate together, so that the glass liquid is conveniently formed on the rotating pipe 4.
Further, as a preferred embodiment, the rotating pipe 4 is inclined from the horizontal plane, and the inclination angle between the rotating pipe 4 and the horizontal plane is 3 ° to 15 °. Further, the end of the rotary tube 4 close to the rotary drive mechanism 3 should have a higher level than the end of the rotary tube 4 far from the rotary drive mechanism 3, so that the molten glass flows around from the upper end to the lower end of the rotary tube 4; and the inner contour of the whole high-temperature chamber is designed around the rotating pipe 4 in a matching way, so that the high-temperature chamber is approximately in the shape of a rectangular body, the length direction of the inner contour of the rectangular body is arranged along the length direction of the rotating pipe 4, and the whole high-temperature chamber is also arranged at an inclination angle of 3-15 degrees with the horizontal plane.
Further, as a preferred embodiment, each of said flameless burner assemblies 6 comprises: the burner brick 61 is quickly embedded in the inner wall of the high-temperature cavity 2, the burner brick 61 is arranged in a long strip shape, the length direction of the burner brick is parallel to the axial direction of the glass tube, a plurality of communicating holes 63 are sequentially formed in the burner brick 61 in a penetrating manner along the length direction, and the axis of each communicating hole 63 is perpendicular to the axis of the rotating tube 4; a plurality of burner main bodies 62, each burner main body 62 being arranged in a circular tube shape, one end of each burner main body 62 penetrating through the casing 1 and being inserted into the communication hole 63, one end of each burner main body 62 being arranged in a recessed manner with respect to one end of the communication hole 63 near the glass tube; and a fuel premixer to which the other end of each of the burner bodies 62 is connected, in which fuel gas is mixed, and which delivers the fuel gas into the burner bodies 62. Furthermore, the proper fuel gas is provided for each burner main body 62 through the fuel premixer, the fuel premixer is provided with a valve for controlling the gas flow so as to control the supply amount of the fuel gas, the burner bricks 61 are used as spaces for finishing the combustion of the fuel gas, so that the fuel gas starts to combust at the moment of being sprayed out of the burner main body 62, the whole combustion process is finished in the communicating holes 63, the combustion flame of the fuel gas does not emerge from the burner bricks 61, the combustion pulsation generated in the combustion process is greatly weakened, and the heat generated by the combustion can be uniformly diffused at the moment of entering the high-temperature cavity 2 from the communicating holes 63; the above-mentioned recessed arrangement means that the end of the burner main body 62 close to the rotary pipe 4, that is, the end from which the fuel gas is jetted should be submerged below the surface of the burner block 61 close to the rotary pipe 4, and the end of the communication hole 63 close to the rotary pipe 4 should be spaced apart from the end of the burner main body 62.
Further, as a preferred embodiment, the fuel premixer is installed outside the housing and is fixedly connected to the housing, and the fuel premixer preferably includes at least a mixing chamber, in which the combustible gas and the combustion-supporting gas are supplied through different supply conduits, and the mixing chamber is used for uniformly mixing the two in the mixing chamber and supplying the two to the burner main body 62.
Further, as a preferred embodiment, the burner body 62 includes: fuel spray pipe 621 and fuel nozzle 622, fuel spray pipe 621 outside-in runs through in proper order casing 1 with high temperature chamber 2 is fixed in set up in the burner brick 61, fuel spray pipe 621 one end with the fuel premixer is connected, fuel spray pipe 621's the other end fixedly connected with fuel nozzle 622, evenly be provided with a plurality of orifices on the fuel nozzle 622, just fuel nozzle 622 for fuel spray pipe 621's the other end cave in the intercommunicating pore 63. Further, the fuel injection head 622 may preferably be formed in a convex hemispherical shape so that the fuel gas is uniformly distributed in the re-communication hole 63 when being injected from the injection holes.
Further, as a preferred embodiment, one end of the communication hole 63 near the rotating pipe 4 is gradually flared, and the diameter of the end of the communication hole 63 near the rotating pipe 4 is larger than that of the end of the communication hole 63 far from the rotating pipe 4. Further, the inner diameter of the end of the communication hole 63 far from the rotary pipe 4 should match the diameter of the fuel nozzle 621, the other end of the communication hole 63 is flared and opened to the inside of the high temperature chamber, and a flared combustion channel section is formed, the combustion channel section is used for burning fuel gas, and the burning process of the fuel gas is finished at the end of the communication hole 63 near the rotary pipe 4.
Further, as a preferred embodiment, the cross section inside the high temperature chamber 2 is square, the axis of the rotating tube 4 passes through the center of the square, the four flameless burner assemblies 6 are respectively arranged at four corners of the square, an inclined inner wall surface 611 is formed on one side of each burner brick 61 of the four flameless burner assemblies 6 close to the rotating tube 4, the outer edge of each inner wall surface 611 is tightly attached to the inner wall of the high temperature chamber 2, and each inner wall surface 611 is parallel to the axis of the rotating tube 4. Further, especially referring to fig. 3, the cross section is specifically a section formed by cutting the whole high temperature chamber 2 along the radial direction of the rotating pipe 4, four sides formed on the cross section form a square, and the axis of the rotating pipe 4 always passes through the center of the square regardless of the cutting of any part of the rotating pipe 4, the number of the flameless burners in the high temperature chamber 2 of the square cross section is preferably four, and the four burner blocks are respectively arranged at four corners, preferably, the cross section of the four burner blocks is a right triangle, two right-angled sides of each right triangle are abutted against the inner wall of the high temperature chamber 2, more specifically, the length direction of each inner wall surface 611 is arranged along the length direction of the rotating pipe 4, and the four inner wall surfaces 611 are opposite to each other two by two, two liang of lines can be an X in foretell square, and every internal wall 611 all is 45 contained angles with an adjacent 2 inner walls in high temperature chamber and sets up promptly to when making glass liquid be heated the shaping on rotatory pipe 4, can receive from four directions, the contained angle is 90 stable heat between every direction, makes whole glass pipe shaping even.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope and the implementation manner of the present invention.
The invention also comprises a using method of the glass tube forming device on the basis, which is applied to any glass tube forming device and comprises the following steps:
step S1: starting the rotary driving mechanism 3, wherein the rotary driving mechanism 3 drives the rotary pipe 4 to rotate; furthermore, a control system can be arranged at the equipment control end of the glass tube forming device to control the electrification and starting of the rotary driving motor and drive the rotary tube 4 to rotate at the speed of 3-15 revolutions per minute.
Step S2: starting a plurality of flameless burner assemblies 6 to heat the interior of the high-temperature cavity 2 to a set temperature and keep the temperature constant; further, the interior of the high temperature chamber 2 is preheated first, and the surface of the rotary pipe 4 is also preheated to some extent.
Step S3: keeping a plurality of flameless burner assemblies 6 to work, and opening a glass liquid injection pipe 5 to pour glass liquid into one end of the rotating pipe 4; further, after the molten glass is poured onto the rotary pipe 4 through the molten glass pouring pipe 5, the molten glass continuously flows downward on the rotary pipe 4, and then flows to the end of the rotary pipe 4 away from the rotary driving mechanism 3, and then is separated from the rotary pipe 4 to form a tubular object.
Step S4: and after the molten glass is formed into a glass tube on the rotating tube 4, stopping the work of the rotating driving mechanism 3 and the flameless burner assembly 6, and taking out the glass tube after cooling.
In a further embodiment of the invention, the set temperature is equal to or greater than the ignition point of the fuel gas within the flameless burner assembly 6. Further, combustion is started as soon as the fuel gas reaches the ignition point through the nozzle hole.
In a further embodiment of the present invention, the fuel premixer is controlled to provide a proper amount of fuel gas to the burner body 62, so that the combustion of the fuel gas is completed in the burner bricks 61, and the heat generated by the combustion of the fuel gas is uniformly diffused into the high temperature cavity 2.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention.
Claims (10)
1. A glass tube forming apparatus, comprising:
the device comprises a shell, a first heat exchanger, a second heat exchanger, a first heat exchanger and a second heat exchanger, wherein a high-temperature cavity is arranged in the shell;
the rotary driving mechanism is arranged at one end of the outer part of the shell, and one end of the rotary driving mechanism penetrates through the shell;
the rotating pipe is of a cylindrical structure, one end of the rotating pipe is connected with the rotating driving mechanism, and the rotating pipe is arranged in the high-temperature cavity;
the glass liquid injection pipe is penetratingly arranged at the upper part of one end, close to the rotary driving mechanism, of the machine shell, the lower end of the glass liquid injection pipe penetrates through the high-temperature cavity and is arranged over one end of the rotary pipe in a facing mode, and the glass liquid injection pipe is used for releasing glass liquid to one end of the rotary pipe;
the device comprises a plurality of flameless burner assemblies, wherein the flameless burner assemblies are uniformly arranged along the inner wall of a high-temperature cavity, the flameless burner assemblies are uniformly arranged along the annular direction of a rotating pipe, each flameless burner assembly is just opposite to the radial direction of the rotating pipe, each flameless burner assembly is parallel to the axial direction of the rotating pipe, and the distance from each flameless burner assembly to the rotating pipe is equal.
2. The glass tube forming apparatus of claim 1, wherein the rotational drive device comprises: the high-temperature-resistant connecting rod is fixedly arranged at one end of the outer portion of the shell, an output shaft of the rotating motor is fixedly connected with one end of the coupler, the other end of the connecting shaft is connected with one end of the high-temperature-resistant connecting rod, the other end of the high-temperature-resistant connecting rod is connected with one end of the rotating pipe, and the output shaft, the coupler and the high-temperature-resistant connecting rod are coaxially arranged.
3. The glass tube molding apparatus as claimed in claim 1, wherein the rotary tube is disposed to be inclined with respect to a horizontal plane, and an inclination angle between the rotary tube and the horizontal plane is 3 ° to 15 °.
4. The glass tube forming apparatus of claim 1, wherein each flameless burner assembly comprises:
the burner brick is quickly embedded in the inner wall of the high-temperature cavity and is arranged in a long strip shape, the length direction of the burner brick is parallel to the axial direction of the glass tube, a plurality of communicating holes are sequentially formed in the burner brick in a penetrating manner along the length direction, and the axis of each communicating hole is perpendicular to the axis of the rotating tube;
the burner main bodies are arranged in a circular tube shape, one end of each burner main body penetrates through the shell and is inserted into the communication hole, and one end of each burner main body is arranged in a sunken manner relative to one end, close to the glass tube, of the communication hole;
the other end of each combustor main body is connected to the fuel premixer, fuel gas is mixed in the fuel premixer, and the fuel premixer conveys the fuel gas into the combustor main body.
5. The glass tube forming apparatus as claimed in claim 4, wherein the burner body includes: fuel spray tube and fuel nozzle, fuel spray tube outside-in runs through in proper order the casing with the high temperature chamber is fixed in set up in the nozzle fragment of brick, fuel spray tube's one end with the fuel premixer is connected, fuel spray tube's other end fixedly connected with fuel nozzle, fuel nozzle evenly is provided with a plurality of orifices, just fuel nozzle for fuel spray tube's the other end recess in the intercommunication hole.
6. The glass tube molding apparatus as claimed in claim 4, wherein the end of the communication hole near the rotary tube is gradually flared and has a larger diameter than the end of the communication hole far from the rotary tube.
7. The glass tube molding device according to claim 4, 5 or 6, wherein the cross section of the inside of the high temperature chamber is arranged in a square shape, the axis of the rotating tube passes through the center of the square shape, the four flameless burner assemblies are respectively arranged at the four corners of the square shape, an inner wall surface is obliquely formed on one side of each burner brick of each flameless burner assembly, which is close to the rotating tube, the outer edge of each inner wall surface is tightly attached to the inner wall of the high temperature chamber, and each inner wall surface is parallel to the axis of the rotating tube.
8. A method of using a glass tube forming apparatus comprising the glass tube forming apparatus as claimed in any one of claims 1 to 7, comprising the steps of:
step S1: starting the rotary driving mechanism, wherein the rotary driving mechanism drives the rotary pipe to rotate;
step S2: starting a plurality of flameless burner assemblies to heat the inner part of the high-temperature cavity to a set temperature and keep the temperature constant;
step S3: keeping a plurality of flameless burner assemblies to work, and opening a glass liquid injection pipe to pour glass liquid into one end of the rotating pipe;
step S4: and after the molten glass is formed into a glass tube on the rotary tube, stopping the work of the rotary driving mechanism and the flameless burner assembly, and taking out the glass tube after cooling.
9. The method of using a glass tube forming apparatus according to claim 8, wherein the set temperature is equal to or greater than an ignition point of fuel gas in the flameless burner assembly.
10. The method of using a glass tube forming apparatus as claimed in claim 8, wherein the fuel premixer is controlled to supply an appropriate amount of fuel gas to the burner body, so that combustion of the fuel gas is completed in the burner block, and heat generated by combustion of the fuel gas is uniformly diffused into the high temperature chamber.
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| CN202011126688.XA CN112266153B (en) | 2020-10-20 | 2020-10-20 | Glass tube forming device and using method thereof |
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| CN206538339U (en) * | 2016-09-30 | 2017-10-03 | 君恒河北药用玻璃制品有限公司 | A kind of Muffle furnace sleeve electric heater unit |
| CN109111087A (en) * | 2017-06-26 | 2019-01-01 | 肖特股份有限公司 | For manufacturing the Dan Na pipe and method of glass tube or glass bar |
| CN110790484A (en) * | 2019-08-30 | 2020-02-14 | 醴陵旗滨电子玻璃有限公司 | Glass tube forming system |
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| CN112266153B (en) | 2023-01-10 |
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