A medical glass continuous production equipment based on inorganic non-metallic materials

Abstract

The application relates to the field of glass production and discloses a medical glass continuous production equipment based on inorganic non-metallic materials, which comprises an annealing furnace body, a heat distribution assembly and an auxiliary assembly are arranged in the annealing furnace body; the heat distribution assembly comprises a gas radiation plate; the auxiliary assembly comprises a plurality of silicon-carbon rods which are arranged side by side in the annealing furnace body, and the end of each silicon-carbon rod is rotationally connected to the inner side wall of the annealing furnace body; the gas radiation plate is arranged above the glass, and the gas radiation plate generates infrared heat energy; the infrared heat energy is reacted to release heat, rapid and uniform heating is realized, stable heat preservation heat is provided for the inside of the annealing furnace body, and the heat preservation heat is specifically provided for the upper surface of the glass; meanwhile, the silicon-carbon rods are arranged below the glass, the silicon-carbon rods are electrified to be heated and radiate heat, stable heat preservation heat is provided for the inside of the annealing furnace body, and the heat preservation heat is specifically provided for the lower surface of the glass; at this time, the upper and lower surfaces of the glass are both subjected to heat radiation, the annealing quality of the glass is improved, and the quality of the glass is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of glass production, and particularly relates to a medical glass continuous production equipment based on inorganic non-metallic materials. BACKGROUND

[0002] The float medical glass must enter the subsequent cutting, cleaning and packaging process in a "zero defect, zero stress" state, otherwise any residual stress will induce cracks, alkali precipitation or surface fog during high temperature and high pressure sterilization or long-term liquid immersion, which directly threatens the clinical safety. Therefore, the industry generally adopts a "furnace-tin bath-annealing furnace-cooling end" full continuous production line to realize 24h uninterrupted operation through mechanical and information integration.

[0003] Among them, the annealing furnace section is an important link in the float medical glass production line, and its temperature control stability determines the glass quality and service life; and the annealing furnace section can be further divided into a heating section, a holding section, a slow cooling section and a fast cooling section.

[0004] The heating section: uniformly raises the whole glass to the "plastic zone" in the shortest time, so that the internal atoms obtain sufficient kinetic energy, the structure is relaxed, and the subsequent stress release is prepared; at the same time, the temporary stress generated after forming is controlled within the safety limit to avoid explosion due to rapid heating.

[0005] The holding section: makes the temperature inside and outside the glass completely uniform, and eliminates the permanent stress left by the forming cooling; at the same time, the glass molecular chain segment is rearranged to achieve a structure balanced state.

[0006] The slow cooling section: cools at an extremely slow rate to prevent new temperature gradient from generating new permanent stress; when the temperature drops below the strain point, the glass structure is "frozen", and any subsequent temperature difference can only cause recoverable temporary stress.

[0007] The fast cooling section: cools to room temperature as fast as possible after the glass has been in the "elastic solid state" to shorten the annealing cycle and improve the yield; as long as the cooling rate does not exceed the thermal shock limit of the glass at this time, no new permanent stress will be introduced.

[0008] Among them, the holding section needs to be maintained for a long time, and the time is generally controlled between 30-60 minutes, so the holding section needs stable temperature control, otherwise the glass is not stable at the holding temperature, the internal stress of the glass is not eliminated completely, which affects the glass quality, and the glass holding is not stable due to the design of the equipment structure of the holding section, especially the lower surface of the glass is blocked by the conveying roller, which reduces the quality of the medical glass product.

[0009] Therefore, a medical glass continuous production equipment based on inorganic non-metallic materials is proposed for the above problems. SUMMARY

[0010] To make up for the deficiencies of the prior art, at least one technical problem raised in the background art is solved.

[0011] The technical scheme adopted by the present application to solve its technical problems is: the medical glass continuous production equipment based on inorganic non-metallic materials, comprising an annealing kiln body, a heat preservation unit is arranged in the annealing kiln body, the heat preservation unit comprises a plurality of heat distribution assemblies arranged above the annealing kiln body and an auxiliary assembly arranged in the annealing kiln body;

[0012] Each heat distribution assembly comprises a gas radiation plate, a plurality of gas radiation plates are arranged side by side across the annealing kiln body, and the radiation surface of each gas radiation plate faces the inside of the annealing kiln body;

[0013] The auxiliary assembly comprises a plurality of silicon-carbon rods arranged side by side in the annealing kiln body, and the end of each silicon-carbon rod is rotatably connected to the inner side wall of the annealing kiln body;

[0014] A strip-shaped hole is formed in each silicon-carbon rod, the strip-shaped hole is formed along the axial direction of the silicon-carbon rod, a gas outlet hole is formed radially on the surface of each silicon-carbon rod, the gas outlet hole is connected to the strip-shaped hole, and a hollow ring is rotatably connected to the outer circle of the end of each silicon-carbon rod, the inner circle of the hollow ring is connected to the gas inlet hole formed radially on the outer circle of the end of the silicon-carbon rod, and the gas inlet hole is connected to the strip-shaped hole.

[0015] Preferably, a plurality of strip-shaped holes are uniformly formed in each silicon-carbon rod, and the hole end of each strip-shaped hole is connected to a gas outlet hole;

[0016] The outer circle of the end of each silicon-carbon rod is fixedly connected to a ring body, a plurality of gas outlet holes are circumferentially arranged to extend into the ring body, and each gas outlet hole penetrates through the outer side wall of the ring body;

[0017] Two annular cavities are arranged in each hollow ring, the ring body is rotatably connected between adjacent two cavities, and a plurality of through holes are uniformly formed in the opposite side walls of the adjacent two cavities.

[0018] Preferably, the diameter of the top through hole in the side wall of each cavity is greater than the diameters of the remaining through holes in the side wall.

[0019] Preferably, a plurality of temperature control assemblies are arranged below the heat distribution assembly, the temperature control assemblies are used to control the flow of heat in the annealing kiln body, each temperature control assembly comprises a rotating shaft rotatably connected to the side wall of the annealing kiln body, a baffle is fixedly connected to the outer circle of each rotating shaft, each baffle is arranged in the width direction of the annealing kiln body, and the bottom edge of each baffle is arranged to be inclined downward.

[0020] Preferably, the temperature control assembly further comprises a gas supply pipe arranged at the end of the rotating shaft, the gas supply pipe is connected to the hollow baffle, and a plurality of gas injection holes are formed in the bottom edge of each baffle.

[0021] Preferably, each of the gas radiation plate top is communicated with a heat recovery pipe, and the heat recovery pipe is communicated with a glass cell kiln.

[0022] Preferably, the auxiliary assembly is provided below a heat insulation assembly, the heat insulation assembly is arranged at the inner bottom of the annealing kiln body, and the heat insulation assembly comprises a heat insulation plate arranged along the length direction of the annealing kiln body, and a plurality of strip-shaped protrusions are arranged on the upper surface of the heat insulation plate, and the surface of each protrusion is uneven.

[0023] The heat insulation plate is arranged on the inner bottom of the annealing kiln body through a plurality of ribs, and the cavities between adjacent ribs are filled with heat insulation cotton.

[0024] Preferably, the end of the gas supply pipe extends to the outside of the annealing kiln body, and an electronic control valve is arranged on each gas supply pipe, and the electronic control valve is arranged away from the annealing kiln body.

[0025] Preferably, the lower surface of each of the gas radiation plates is provided with an opal quartz diffusion plate.

[0026] Preferably, a plurality of limiting pins are arranged on the inner side wall of the annealing kiln body, and the limiting pins are arranged one by one below the baffles.

[0027] The present application has the advantages that:

[0028] 1. The annealing continuous kiln is provided with a gas radiation plate above the glass, and the gas radiation plate generates infrared heat energy; the heat released by the infrared heat energy is reacted to realize rapid and uniform heating, and stable heat preservation heat is provided for the inside of the annealing kiln body, and in particular, heat preservation heat is provided for the upper surface of the glass; at the same time, a silicon-carbon rod is arranged below the glass, the silicon-carbon rod is electrified to heat and radiate heat, and stable heat preservation heat is provided for the inside of the annealing kiln body, and in particular, heat preservation heat is provided for the lower surface of the glass; at this time, the upper and lower surfaces of the glass are both subjected to heat radiation, the glass annealing quality is improved, and the glass quality is improved.

[0029] 2. In the present application, the deflection angle of the baffle is adjusted to control the radiation amount of the gas radiation plate on the upper surface of the glass, and the deflection angle of the baffle can be steplessly adjusted, the radiation temperature can be slightly adjusted, and high flexibility is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 It is a perspective view of the annealing kiln body in the present application;

[0031] Figure 2 It is a top view of the annealing kiln body in the present application;

[0032] Figure 3 It is a side view of the annealing kiln body in the present application;

[0033] Figure 4 It is a sectional view of the annealing kiln body in the present application;

[0034] Figure 5 It is a perspective view of the silicon-carbon rod in the application;

[0035] Figure 6 It is a perspective view of the silicon-carbon rod and the hollow ring in the application;

[0036] Figure 7 It is a perspective view of the silicon-carbon rod and the ring in the application;

[0037] Figure 8 It is a sectional view of the silicon-carbon rod in the application;

[0038] Figure 9 It is a sectional view of the hollow ring in the application;

[0039] Figure 10 It is a perspective view of the baffle and the annealing furnace body in the application;

[0040] Figure 11 It is a schematic view of the internal structure of the annealing furnace body in the application;

[0041] Figure 12 It is a perspective view of the heat insulation assembly in the application;

[0042] Figure 13 It is a perspective view of the baffle in the application.

[0043] In the figure: 101, glass; 1, annealing furnace body; 2, gas radiation plate; 3, silicon-carbon rod; 4, strip-shaped hole; 5, air outlet hole; 6, hollow ring; 7, air inlet hole; 8, chain wheel; 9, ring; 10, cavity; 11, through hole; 12, pipe body; 13, rotating shaft; 14, baffle; 15, servo motor; 16, air supply pipe; 17, air injection hole; 18, heat recovery pipe; 19, heat insulation plate; 20, protrusion; 21, rib; 22, heat insulation cotton; 23, electronic control valve; 24, milky white quartz diffusion plate; 25, limit pin. DETAILED DESCRIPTION

[0044] In order to make the technical means, creative features, purposes and effects realized by the application easy to understand, the application is further described below in combination with specific embodiments.

[0045] REFERENCE Figure 1 - Figure 5The application discloses a continuous production equipment for medical glass based on inorganic nonmetallic materials, which comprises an annealing furnace body 1, a heat preservation unit arranged in the annealing furnace body 1, a plurality of hot air distribution assemblies arranged above the annealing furnace body 1 and an auxiliary assembly arranged in the annealing furnace body 1; each hot air distribution assembly comprises a gas radiation plate 2, and the plurality of gas radiation plates 2 are arranged side by side across the annealing furnace body 1, and the radiation surface of each gas radiation plate 2 faces the inside of the annealing furnace body 1; the auxiliary assembly comprises a plurality of silicon-carbon rods 3 arranged side by side in the annealing furnace body 1, and the end of each silicon-carbon rod 3 is rotationally connected to the inner side wall of the annealing furnace body 1; a strip-shaped hole 4 is arranged in the inside of each silicon-carbon rod 3 along the axial direction of the silicon-carbon rod 3, a gas outlet hole 5 is radially arranged on the surface of each silicon-carbon rod 3, the gas outlet hole 5 is communicated with the strip-shaped hole 4, and a hollow ring 6 is rotationally connected to the outer circle of the end of each silicon-carbon rod 3, the inner circle of the hollow ring 6 is communicated with a gas inlet hole 7 radially arranged on the outer circle of the end of the silicon-carbon rod 3, and the gas inlet hole 7 is communicated with the strip-shaped hole 4.

[0046] In the embodiment of the application, the working principle of the gas radiation plate 2 is that clean fuel gas (natural gas or liquefied gas) is uniformly mixed with air in the gas radiation plate 2, the mixed gas flows through the surface of a preheated platinum catalyst, and complete oxidation reaction occurs at a temperature lower than the ignition point of the fuel gas without fire, that is, the fuel gas, oxygen and the platinum catalyst generate carbon dioxide gas and water vapor and infrared heat energy; the heat released by the infrared heat energy reaction makes the surface temperature of the gas radiation plate 2 reach 600-650 DEG C, excites 2-10 mu m of medium-long wave infrared rays, realizes rapid and uniform heating, and provides stable heat preservation heat for the inside of the annealing furnace body 1, and specifically provides heat preservation heat for the upper surface of the glass 101.

[0047] The end of each silicon-carbon rod 3 is provided with a chain wheel 8, the chain wheel 8 engages with a chain, synchronous rotation of the plurality of silicon-carbon rods 3 is realized, at this time, the plurality of silicon-carbon rods 3 are used not only for conveying the glass 101 but also for providing heat preservation heat for the glass 101, specifically, the silicon-carbon rod 3 is electrically connected with an external power supply through a wire, the silicon-carbon rod 3 is heated by electricity to radiate heat, stable heat preservation heat is provided for the inside of the annealing furnace body 1, and specifically, heat preservation heat is provided for the lower surface of the glass 101, so that the lower surface of the glass 101 continuously contacts with heat in the conveying process, instead of being intermittently shielded from heat by the conveying roller in the prior art, especially for some glass 101 production lines with slow conveying speed, the glass 101 is shielded from heat by a single conveying roller for a long time, and the heat preservation effect on the glass 101 is poor, while in the embodiment, the plurality of silicon-carbon rods 3 with the conveying function are arranged, the shielding problem of the conveying roller on the heat can be avoided, the heat generated by the silicon-carbon rod 3 directly contacts with the glass 101, the heat radiation distance is reduced, the heat loss is reduced, at this time, the power of the silicon-carbon rod 3 can be reduced, and the energy-saving effect is realized.

[0048] Meanwhile, each silicon-carbon rod 3 is internally provided with a strip-shaped hole 4, which is matched with an air outlet hole 5 and an air inlet hole 7, and the gas can flow in the silicon-carbon rod 3 to realize temperature control of the silicon-carbon rod 3. Specifically, when the temperature detected in the annealing furnace body 1 exceeds the preset temperature, the external air pump injects the external gas into the hollow ring 6, and the gas flows along the air inlet hole 7, the strip-shaped hole 4 and the air outlet hole 5 in sequence, and the external gas exchanges heat with the silicon-carbon rod 3, and the gas has strong flowability and can quickly exchange heat with the silicon-carbon rod 3 to reduce the temperature of the silicon-carbon rod 3. Meanwhile, after the gas exchanges heat with the silicon-carbon rod 3, the temperature of the gas rises, and the gas is discharged from the air outlet hole 5 to contact the lower surface of the glass 101. For example, the temperature in the annealing furnace body 1 needs to be controlled between 605-608℃, and when the temperature detection sensor arranged in the annealing furnace body 1 detects that the surface temperature of the silicon-carbon rod 3 exceeds 615℃, the external air pump is controlled to operate by the PLC, the gas is quickly injected into the silicon-carbon rod 3, the temperature of the gas is 30℃ when the gas is injected, the gas exchanges heat with the silicon-carbon rod 3 when the gas flows through the strip-shaped hole 4, and when the gas is discharged from the air outlet hole 5, the temperature of the gas rises to 606℃, and the surface temperature of the silicon-carbon rod 3 drops to 607℃. As for the temperature control of the gas and the surface of the silicon-carbon rod 3, the amount and flow rate of the injected gas can be controlled to realize stable control of the temperature of the glass 101, and the design has high flexibility and can be suitable for temperature control of the glass 101 with different thicknesses or different materials.

[0049] With reference to Figure 5 - Figure 9 Each silicon-carbon rod 3 is internally provided with a plurality of strip-shaped holes 4, and each strip-shaped hole 4 is communicated with an air outlet hole 5;

[0050] The end portion of each silicon-carbon rod 3 is fixedly connected with a ring body 9, and a plurality of air outlet holes 5 are circumferentially arranged in the ring body 9, and each air outlet hole 5 penetrates through the outer side wall of the ring body 9;

[0051] Each hollow ring 6 is internally provided with two annular cavities 10, and the ring body 9 is rotatably connected between the two cavities 10, and a plurality of through holes 11 are uniformly arranged on the opposite side walls of the two cavities 10;

[0052] Each silicon-carbon rod 3 is provided with a plurality of strip-shaped holes 4, and the strip-shaped holes 4 are circumferentially arranged away from the axis of the silicon-carbon rod 3. This design can reduce the thickness of the outer wall of the silicon-carbon rod 3, and the gas flowing through the strip-shaped hole 4 can reduce the temperature of the surface of the silicon-carbon rod 3, that is, the temperature of the outer layer of the silicon-carbon rod 3, so as to quickly reduce the surface temperature of the silicon-carbon rod 3. A plurality of strip-shaped holes 4 are arranged, and each strip-shaped hole 4 is communicated with a plurality of air outlet holes 5. When the surface temperature of the silicon-carbon rod 3 rapidly rises, the plurality of strip-shaped holes 4 synchronously inject external gas to cooperatively reduce the surface temperature of the silicon-carbon rod 3, so as to quickly reduce the temperature of the silicon-carbon rod 3;

[0053] Each hollow tube is communicated with a pipe body 12 below, and gas is injected from the gas pump into the annealing furnace body 1. The specific process is that the pipe body 12, the hollow ring 6, the chamber 10, the through hole 11, the gas inlet hole 7, the strip-shaped hole 4 and the gas outlet hole 5 are communicated.

[0054] Referring to Figure 8 and Figure 9 , the diameter of the top through hole 11 on the side wall of each chamber 10 is greater than that of the remaining through holes 11 on the side wall thereof;

[0055] The different diameters of the through holes 11 are arranged such that when the surface of the silicon-carbon rod 3 faces upward and the gas outlet hole 5 is opposite to the lower surface of the glass 101, the diameter of the through hole 11 connected and communicated by the strip-shaped hole 4 and the gas inlet hole 7 is the largest, the amount of gas flowing out of the through hole 11 with the largest diameter is the largest, and the amount of gas discharged from the upward-facing gas outlet hole 5 is also the largest, which can cover a larger area of the lower surface of the glass 101. In addition, the cooperation of multiple silicon-carbon rods 3 can cover more areas of the lower surface of the glass 101, so that the overall lower surface of the glass 101 is kept at a relatively stable temperature.

[0056] Referring to Figure 10 - Figure 13 , the heat distribution assembly is provided below a plurality of temperature control assemblies, and the temperature control assemblies are used to control the flow of heat in the annealing furnace body 1. Each temperature control assembly comprises a rotating shaft 13 rotatably connected to the side wall of the annealing furnace body 1. The outer circle of each rotating shaft 13 is fixedly connected with a baffle 14. Each baffle 14 is arranged along the width direction of the annealing furnace body 1, and the bottom edge of each baffle 14 is inclined downward.

[0057] The end of each rotating shaft 13 penetrates to the outside of the annealing furnace body 1 and is connected with a servo motor 15 outside. The servo motor 15 is controlled by a PLC, which can control the deflection angle of the baffle 14. When the baffle 14 is controlled to deflect clockwise, the baffle 14 tends to be vertical, and the shielding coverage of the upper surface of the glass 101 decreases, so that the radiation amount of the gas radiation plate 2 to the upper surface of the glass 101 increases. Similarly, when the baffle 14 is controlled to deflect counterclockwise, the baffle 14 tends to be horizontal, and the shielding coverage of the upper surface of the glass 101 increases, so that the radiation amount of the gas radiation plate 2 to the upper surface of the glass 101 decreases. By adjusting the deflection angle of the baffle 14, the radiation amount of the gas radiation plate 2 to the upper surface of the glass 101 is controlled, and the deflection angle of the baffle 14 can be adjusted steplessly, which can realize the micro-adjustment of the radiation temperature and has high flexibility.

[0058] Referring to Figure 10 - Figure 13 , the temperature control assembly further comprises a gas supply pipe 16 arranged at the end of the rotating shaft 13. The gas supply pipe 16 is communicated with the hollow baffle 14. A plurality of gas injection holes 17 are formed in the bottom edge of each baffle 14.

[0059] When the radiation temperature of the gas radiation plate 2 increases suddenly, and the temperature of the upper surface of the glass 101 cannot be quickly reduced by adjusting the angle of the baffle 14, the baffle 14 can be cooled through the gas injection holes 17 on the baffle 14. Specifically, the gas supply pipe 16 is connected to an external air pump, and the gas is injected into the baffle 14 and discharged from the multiple gas injection holes 17. The baffle 14 is always under the radiation of the gas radiation plate 2, and the inside of the baffle 14 is always at a high temperature. When the external gas flows through the inside of the baffle 14, the gas exchanges heat with the baffle 14, and at the same time, the gas is discharged from the gas injection holes 17 and blown into the space between the gas radiation plate 2 and the glass 101 to reduce the radiation temperature. To reduce the temperature, the amount of gas injected into the baffle 14 can be controlled to accurately control the temperature of the glass 101, and in the case of sudden increase in the radiation temperature of the gas radiation plate 2, the temperature can also be quickly reduced to provide a stable temperature environment for the glass 101.

[0060] With reference to Figure 1 - Figure 3 Each of the gas radiation plates 2 is connected to a heat recovery pipe 18 at the top, and the heat recovery pipe 18 is connected to a glass 101 tank furnace.

[0061] The glass 101 tank furnace melts the batch into uniform and bubble-free glass 101 liquid at high temperature and stably supplies the glass 101 liquid to the subsequent forming equipment. During the melting process, a large amount of heat is accumulated in the heat exchange chamber of the glass 101 tank furnace. The heat recovery pipe 18 is provided to recover the part of the accumulated heat. Specifically, the heat recovery pipe 18 is connected to the heat exchange chamber of the glass 101 tank furnace. The heat is desulfurized, denitrated and dedusted before entering the gas radiation plate 2. The part of the recovered heat does not participate in the temperature maintenance of the glass 101, but is used to maintain the temperature of the gas radiation plate 2, so that the gas radiation plate 2 operates at a stable temperature, i.e., the ambient temperature of the gas radiation plate 2 tends to be stable, and the heat generated by the operation of the gas radiation plate 2 also tends to be stable. The amount of heat generated by the operation of the gas radiation plate 2 to offset the change in the external temperature is also reduced, so that the gas radiation plate 2 can radiate stable heat to the glass 101.

[0062] With reference to Figure 3 and Figure 4 A heat insulation assembly is arranged below the auxiliary assembly, and the heat insulation assembly is arranged at the inner bottom of the annealing furnace body 1. The heat insulation assembly comprises a heat insulation plate 19 arranged along the length direction of the annealing furnace body 1. A plurality of strip-shaped protrusions 20 are arranged on the upper surface of the heat insulation plate 19. The surface of each protrusion 20 is uneven.

[0063] The heat insulation plate 19 is arranged on the inner bottom of the annealing furnace body 1 through a plurality of ribs 21, and the cavities between adjacent ribs 21 are filled with heat insulation cotton 22.

[0064] Considering that the silicon-carbon rod 3 not only radiates heat to the lower surface of the glass 101, but also radiates heat to the lower side of the silicon-carbon rod 3, the heat radiated to the lower side of the silicon-carbon rod 3 needs to be reflected by the bottom of the annealing furnace body 1 to act on the lower surface of the glass 101, and therefore the heat insulation plate 19 is arranged, which is made of polished aluminum plate or molybdenum, tungsten, nickel-based alloy foil material, can mirror reflect the heat radiated by the silicon-carbon rod 3 directly back, and the heat insulation plate 19 hardly absorbs heat, fully utilizes the heat radiated by the silicon-carbon rod 3, and a plurality of protrusions 20 are arranged on the heat insulation plate 19, and the surface of each protrusion 20 is uneven, which can increase the surface area of the heat insulation plate 19 and increase the number of mirror reflection angles, so that the heat can be reflected from more angles, and the heat is in the annealing furnace body 1. Furthermore, the heat insulation plate 19 cooperates with the heat insulation cotton 22 to insulate the bottom of the annealing furnace body 1 and reduce the heat loss of the bottom of the annealing furnace body 1.

[0065] With reference to Figure 2 , Figure 3 and Figure 13 , the end of the gas supply pipe 16 extends to the outside of the annealing furnace body 1, and an electronic control valve 23 is arranged on each gas supply pipe 16, which is arranged away from the annealing furnace body 1;

[0066] The electronic control valve 23 is controlled by PLC and cooperates with a temperature sensor to realize automatic opening and closing and flexible control of the gas flow in the gas supply pipe 16, and considering that the outer surface of the annealing furnace body 1 will radiate heat, which will cause thermal damage to the electronic control valve 23, the electronic control valve 23 needs to be arranged away from the annealing furnace body 1.

[0067] With reference to Figure 4 , a milky white quartz diffusion plate 24 is arranged on the lower surface of each gas radiation plate 2; the manufacturing material of the milky white quartz diffusion plate is SiO2≥ 99.9 %, and a large number of micron-sized bubbles are uniformly distributed in the interior, the milky white quartz diffusion plate 24 strongly scatters the 2-3µm wave band, and can diffuse a 150mm hot spot into a uniform radiation surface of more than 300mm, so that the heat radiated by the gas radiation plate 2 is dispersed and uniformly acts on the glass 101, avoiding local overheating of the surface of the glass 101.

[0068] With reference to Figure 4 , a plurality of limit pins 25 are arranged on the inner side wall of the annealing furnace body 1, and the limit pins 25 are arranged one by one below the baffle 14;

[0069] The limit pin 25 is arranged to limit the clockwise deflection angle of the baffle 14, so as to prevent the baffle 14 from being deflected too much and touching the upper surface of the glass 101.

[0070] Working principle: in the embodiment of the application, the gas radiation plate 2 is arranged above the glass 101, the gas radiation plate 2 generates infrared heat energy; the heat released by the infrared heat energy reaction realizes rapid and uniform heating, provides stable heat preservation heat for the inside of the annealing kiln body 1, and specifically provides heat preservation heat for the upper surface of the glass 101; meanwhile, the silicon-carbon rod 3 is arranged below the glass 101, the silicon-carbon rod 3 is electrified to heat and radiate heat, provides stable heat preservation heat for the inside of the annealing kiln body 1, and specifically provides heat preservation heat for the lower surface of the glass 101, so that the lower surface of the glass 101 is in contact with heat continuously in the conveying process, instead of being intermittently shielded from heat by the conveying roller in the prior art, especially for some glass 101 production lines with relatively slow conveying speed, the glass 101 is shielded by a single conveying roller for a long time, and the heat preservation effect on the glass 101 is poor, while in the embodiment, a plurality of silicon-carbon rods 3 with conveying function are arranged, the shielding problem of heat by the conveying roller can be avoided, meanwhile, the heat generated by the silicon-carbon rod 3 directly contacts the glass 101, the heat radiation distance is reduced, and the heat loss is reduced, at this time, the electrification power of the silicon-carbon rod 3 can be reduced, and the energy-saving effect is realized.

[0071] The basic principles, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application, and various changes and improvements can be made to the present application without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A continuous production apparatus for medical glass based on inorganic non-metallic materials, characterized by, The annealing furnace body is internally provided with a heat preservation unit, which comprises a plurality of heat distribution assemblies arranged above the annealing furnace body and an auxiliary assembly arranged inside the annealing furnace body. Each of the heat distribution assemblies comprises a gas radiation plate, and a plurality of gas radiation plates are arranged side by side across the annealing furnace body, and the radiation surface of each gas radiation plate faces the inside of the annealing furnace body. The auxiliary assembly comprises a plurality of silicon-carbon rods arranged side by side in the annealing furnace body, and the end of each silicon-carbon rod is rotatably connected to the inner side wall of the annealing furnace body. A strip-shaped hole is formed in each silicon-carbon rod along the axial direction of the silicon-carbon rod, a gas outlet hole is radially formed on the surface of each silicon-carbon rod, the gas outlet hole is connected to the strip-shaped hole, and a hollow ring is rotatably connected to the outer circle of the end of each silicon-carbon rod. The inner part of each silicon-carbon rod is uniformly provided with a plurality of strip-shaped holes, and the hole end of each strip-shaped hole is connected to a gas outlet hole. The outer circle of the end of each silicon-carbon rod is fixedly connected to a ring body, and a plurality of gas outlet holes are circumferentially arranged in the inner part of the ring body, and each gas outlet hole penetrates through the outer side wall of the ring body. Two annular cavities are arranged in the inner part of each hollow ring, the ring body is rotatably connected between the two adjacent cavities, and a plurality of through holes are uniformly formed on the opposite side walls of the two adjacent cavities. The diameter of the top through hole of the side wall of each cavity is greater than the diameters of the remaining through holes on the side wall. A heat insulation assembly is arranged below the auxiliary assembly, the heat insulation assembly is arranged at the bottom of the annealing furnace body, and the heat insulation assembly comprises a heat insulation plate arranged along the length direction of the annealing furnace body, a plurality of strip-shaped protrusions are arranged on the upper surface of the heat insulation plate, and the surface of each protrusion is uneven. The heat insulation plate is arranged on the bottom of the annealing furnace body through a plurality of ribs, and the cavities between adjacent ribs are filled with heat insulation cotton.

2. The apparatus for continuous production of medical glass based on inorganic non-metallic materials according to claim 1, characterized in that: A plurality of temperature control assemblies are arranged below the heat distribution assemblies, the temperature control assemblies are used for controlling the flow of heat in the annealing furnace body, each temperature control assembly comprises a rotating shaft rotatably connected to the side wall of the annealing furnace body, a baffle is fixedly connected to the outer circle of each rotating shaft, each baffle is arranged along the width direction of the annealing furnace body, and the bottom edge of each baffle is arranged in a downward inclined manner.

3. The apparatus for continuous production of medical glass based on inorganic non-metallic materials according to claim 2, characterized in that: The temperature control assembly further comprises a gas supply pipe arranged at the end of the rotating shaft, the gas supply pipe is connected to the hollow baffle, and a plurality of gas injection holes are formed in the bottom edge of each baffle.

4. The apparatus for continuous production of medical glass based on inorganic non-metallic materials according to claim 1, characterized in that: A heat recovery pipe is connected to the top of each gas radiation plate, and the heat recovery pipe is connected to a glass tank furnace.

5. The apparatus for continuous production of medical glass based on inorganic non-metallic materials according to claim 3, characterized in that: The end of the gas supply pipe extends outwardly from the annealing furnace body, and an electronic control valve is arranged on each gas supply pipe, and the electronic control valve is arranged away from the annealing furnace body.

6. The apparatus for continuous production of medical glass based on inorganic non-metallic materials according to claim 4, characterized in that: A milky white quartz diffusion plate is arranged on the lower surface of each gas radiation plate.

7. The apparatus for continuous production of medical glass based on inorganic non-metallic materials according to claim 5, characterized in that: A plurality of limiting pins are arranged on the inner side wall of the annealing furnace body, and the limiting pins are arranged below the baffles one by one.

Images