CN216472823U

CN216472823U - Optical glass discharge tube

Info

Publication number: CN216472823U
Application number: CN202120790856.9U
Authority: CN
Inventors: 梁玉野; 赫宝贵; 吴缙伟; 候瑞; 梁鉥
Original assignee: CDGM Glass Co Ltd
Current assignee: CDGM Glass Co Ltd
Priority date: 2021-04-16
Filing date: 2021-04-16
Publication date: 2022-05-10
Anticipated expiration: 2031-04-16

Abstract

The utility model provides a discharge pipe capable of solving the forming stripe of high-refractive-index optical glass. The optical glass discharge pipe comprises a body, wherein a plurality of electrode sleeve plates are arranged on the body at intervals and the body is divided into a plurality of zones along the length direction for control. According to the utility model, the electrode sleeve plate is adopted to optimize the number of control areas of the discharge pipe, so that the uniformity of glass liquid in the discharge pipe is improved, the glass liquid reaches the most suitable forming viscosity, and the glass liquid is prevented from crystallizing in the discharge pipe; the temperature of the glass liquid in the discharging pipe is controlled by adopting electric heating, so that the current intensity meeting the process requirement in the discharging pipe is ensured, the precision is high, the error is zero, and the temperature stability and the viscosity stability of the glass liquid are ensured; the temperature of the glass liquid in the discharging pipe is collected by the platinum thermocouple, and the temperature is real and reliable. The discharge tube of the utility model can solve the difficult problem of the stripe of the high-refractive-index optical glass strip material with the refractive index of more than 1.80000.

Description

Optical glass discharge tube

Technical Field

The utility model belongs to the technical field of optical glass forming, and particularly relates to an optical glass discharging pipe.

Background

The optical glass production comprises the working procedures of smelting, forming, selecting, annealing and the like, wherein the optical glass forming is to lead the molten glass melted in the tank furnace out of a discharge pipe at the bottom of the discharge tank into a forming die for cooling and forming after the molten glass is uniformly stirred by the discharge tank. The temperature of glass liquid in a discharge pipe, the length, the diameter and the current intensity of the discharge pipe in the forming process determine the quality of optical glass strip stripe, particularly the problem of stripe of high-refractive-index optical glass strip with the refractive index of above 1.80000, forming plugs with different specifications and angles are replaced, different cooling media and cooling amounts are used, the shape and the position of the stripe are basically not changed, only from the structural design of the discharge pipe from the source, the temperature of the glass liquid in the discharge pipe is reduced, the glass liquid reaches the optimum forming viscosity, and meanwhile, the phenomenon that the glass liquid does not crystallize in the discharge pipe is ensured.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a discharge pipe capable of solving the forming stripe of high-refractive-index optical glass.

The technical scheme adopted by the utility model for solving the technical problem is as follows: the optical glass discharge pipe comprises a body, wherein a plurality of electrode sleeve plates are arranged on the body at intervals, and the body is divided into a plurality of areas along the length direction for control.

Furthermore, the middle part of each zone of the multiple zones is respectively provided with a platinum thermocouple for collecting temperature.

Furthermore, the plurality of electrode sleeve plates are respectively connected with the positive pole and the negative pole of a power supply, so that the plurality of zones are mutually connected in parallel and adopt electric heating.

Furthermore, the electrode sleeve plates are respectively vertical to the length direction of the body.

Further, the multiple zones are 3-5 zones.

Furthermore, one end on the electrode sleeve plate is provided with a semicircular structure which is concave, the inner diameter of the semicircular structure is matched with the outer diameter of the body, and the electrode sleeve plates are respectively welded on the body.

Further, the length of the body is 1500-1800mm, the diameter is 4.5-10mm, and the thickness of the pipe wall is 1-2 mm.

Furthermore, the width W of the electrode sleeve plate is 10-15mm, and the length L of the electrode sleeve plate is 0.5-2 mm.

Furthermore, the included angle between the discharge nozzle of the body and the length direction of the body is 60-120 degrees.

Furthermore, a plurality of electrode lagging is 4, and is first electrode lagging, second electrode lagging, third electrode lagging and fourth electrode lagging in proper order respectively, the multizone is 3 districts, and is first district, second district and third district respectively in proper order, first electrode lagging, third electrode lagging are connected with the power positive pole, second electrode lagging, fourth electrode lagging are connected with the power negative pole, first district, second district and third district adopt electric heating in parallel each other.

The utility model has the beneficial effects that: the number of control areas of the discharge pipe is optimized by adopting an electrode sleeve plate, the uniformity of glass liquid in the discharge pipe is improved, the glass liquid reaches the most suitable forming viscosity, and the glass liquid is prevented from crystallizing in the discharge pipe; the temperature of the glass liquid in the discharging pipe is controlled by adopting electric heating, so that the current intensity meeting the process requirement in the discharging pipe is ensured, the precision is high, the error is zero, and the temperature stability and the viscosity stability of the glass liquid are ensured; the temperature of the glass liquid in the discharging pipe is collected by the platinum thermocouple, and the temperature is real and reliable. The discharge tube of the utility model can solve the difficult problem of the stripe of the high-refractive-index optical glass strip with the refractive index above 1.80000.

Drawings

FIG. 1 is a front view of a tapping pipe according to the utility model.

FIG. 2 is a schematic illustration of the structure of an electrode bushing of the tapping pipe according to the utility model.

Detailed Description

As shown in FIG. 1, the optical glass tapping pipe of the present invention comprises a body 1 and a plurality of electrode bushing plates, wherein the plurality of electrode bushing plates are arranged on the body 1 at intervals and divide the body 1 into a plurality of zones along the length direction for control, and the plurality of zones are connected in parallel with each other by connecting the plurality of electrode bushing plates with the positive electrode and the negative electrode of a power supply respectively, and an electric heating manner is adopted.

The number of electrode bushings determines the division of the tapping pipe into several control zones, the number of different control zones results in different current intensities and current uniformities in the tapping pipe, the specific implementation of the several control zones depends on the characteristics of the optical glass actually produced, in some embodiments 3-7 control zones are used, preferably 3-5 control zones are used, and 3 control zones are used as shown in fig. 1. One end of the electrode sleeve plate is provided with a concave semicircular structure 6, as shown in fig. 2, the inner diameter of the semicircular structure 6 is matched with the outer diameter of the body 1, and the electrode sleeve plates are respectively welded on the body 1. Each electrode sheathing is perpendicular to the length direction of the body 1.

The body 1 is made of a high-temperature corrosion resistant conductive material, preferably metal, and more preferably platinum; the length of the body 1 is 1300-2000mm, preferably 1500-1800 mm; the diameter of the body 1 is 3.5-12mm, preferably 4.5-10 mm; the thickness of the tube wall of the body 1 is 0.5-3mm, preferably 1-2 mm; the electrode sleeve plate is made of a conductive material, preferably metal, and more preferably platinum; the width W of the electrode sleeve plate is 8-20mm, preferably 10-15 mm; the length L of the electrode sleeve plate is 5-50mm, and the thickness is 0.5-2mm, as shown in figure 2.

The optical glass material discharge tube of the present invention will be described in detail by taking 4 electrode sleeve plates as an example, as shown in fig. 1, the 4 electrode sleeve plates are respectively a first electrode sleeve plate 2, a second electrode sleeve plate 3, a third electrode sleeve plate 4 and a fourth electrode sleeve plate 5 in sequence, and the 4 electrode sleeve plates divide the body 1 into 3 regions along the length direction, which are respectively a first region 7, a second region 8 and a third region 9 in sequence. The length of the 3 zone is 300-1000mm, preferably 500-800mm, and the length of each zone in the 3 zones can be different. The open end of the first area 7 is connected with the discharging tank, and the distance between the open end of the first area 7 (i.e. the upper end opening of the body 1) and the first electrode sleeve plate 2 is 10-50mm, preferably 10-30 mm. The open end of the third zone 9 (i.e. the lower end opening of the body 1) is above the forming plug and is 3-15mm, preferably 3-8mm, away from the cooling surface of the plug. The distance between one end of the opening of the third region 9 and the fourth electrode bushing plate 5 is 5-50mm, preferably 15-40 mm. The angle between the discharge nozzle of the third zone 9 and the length direction of the body 1 is 60-120 degrees. Platinum thermocouples are welded in the middle of the first zone 7, the second zone 8 and the third zone 9 respectively and used for collecting the temperature of the glass liquid in the corresponding zones. The first electrode sleeve plate 2 and the third electrode sleeve plate 4 are connected with the positive electrode of a power supply, the second electrode sleeve plate 3 and the fourth electrode sleeve plate 5 are connected with the negative electrode of the power supply, so that the first area 7, the second area 8 and the third area 9 are connected in parallel, and the glass liquid in the body 1 is guaranteed to reach the temperature required by the process in an electric heating mode.

When the automatic discharging device works, one end of an opening of the first area 7 of the body 1 is welded on the discharging pool; the first electrode sleeve plate 2 and the third electrode sleeve plate 4 are connected with the positive electrode of a power supply, and the second electrode sleeve plate 3 and the fourth electrode sleeve plate 5 are connected with the negative electrode of the power supply; one end of an opening of the third area 9 of the body 1 is arranged above the forming plug and is 3-15mm away from the cooling surface of the plug; electrode sleeve board circular telegram, through the platinum thermocouple collection that sets up on first district 7, second district 8 and the third district 9 corresponding regional glass liquid temperature, after the temperature reached process temperature, the glass liquid flowed in proper order through first district 7, second district 8 and the third district 9 in the body 1 from the play pond, and the last cooling shaping is carried out on drawing out the glass liquid to the shaping plug through the opening one end of third district 9.

Claims

1. Optical glass discharging pipe, including body (1), its characterized in that: a plurality of electrode sleeve plates are arranged on the body (1) at intervals, and the body (1) is divided into a plurality of zones along the length direction for control.

2. The optical glass tapping pipe according to claim 1, wherein: and the middle part of each of the multiple zones is respectively provided with a platinum thermocouple for collecting temperature.

3. The optical glass tapping pipe according to claim 1, wherein: the plurality of electrode sleeve plates are respectively connected with the positive pole and the negative pole of a power supply, so that the plurality of zones are mutually connected in parallel and adopt electric heating.

4. The optical glass tapping pipe according to claim 1, wherein: the electrode sleeve plates are respectively vertical to the length direction of the body (1).

5. The optical glass tapping pipe according to claim 1, wherein: the multiple zones are 3-5 zones.

6. The optical glass tapping pipe according to claim 1, wherein: one end on the electrode sleeve plate is provided with an inwards concave semicircular structure (6), the inner diameter of the semicircular structure (6) is matched with the outer diameter of the body (1), and the electrode sleeve plates are welded on the body (1) respectively.

7. The optical glass tapping pipe according to claim 1, wherein: the length of the body (1) is 1500-1800mm, the diameter is 4.5-10mm, and the thickness of the pipe wall is 1-2 mm.

8. The optical glass tapping pipe according to claim 1, wherein: the width W of the electrode sleeve plate is 10-15mm, and the length L of the electrode sleeve plate is 0.5-2 mm.

9. The optical glass tapping pipe according to claim 1, wherein: the included angle between the discharge nozzle of the body (1) and the length direction of the body (1) is 60-120 degrees.

10. The optical glass tapping pipe according to claim 1, wherein: the electrode sleeve plates are 4, the electrode sleeve plates are sequentially and respectively a first electrode sleeve plate (2), a second electrode sleeve plate (3), a third electrode sleeve plate (4) and a fourth electrode sleeve plate (5), the multi-region is 3 regions and sequentially and respectively a first region (7), a second region (8) and a third region (9), the first electrode sleeve plate (2) and the third electrode sleeve plate (4) are connected with the positive electrode of a power supply, the second electrode sleeve plate (3) and the fourth electrode sleeve plate (5) are connected with the negative electrode of the power supply, and the first region (7), the second region (8) and the third region (9) are mutually connected in parallel to adopt electric heating.