A sealing and charging structure for glass furnace

Abstract

The utility model discloses a sealing feeding structure for a glass kiln, comprising a moving mechanism, so that a material spoon containing raw materials can enter and exit the glass kiln through a feeding port, a sealing sleeve is arranged on the outer cover of the material spoon, and the sealing sleeve is connected to the moving mechanism through an elastic telescopic mechanism, so that the sealing sleeve can move toward the glass kiln synchronously with the moving mechanism and the material spoon before abutting against the furnace wall, and after the sealing sleeve abuts against the furnace wall, the elastic telescopic mechanism is compressed, so that the moving mechanism can further drive the material spoon to extend into the glass kiln through the feeding port to complete the feeding; during the period when the material spoon enters and exits the glass kiln through the feeding port, the sealing sleeve abuts and seals against the furnace wall at the feeding port, the glass kiln is only connected with the inside of the sealing sleeve, and is not completely connected with the outside world, so the influence on the pressure and temperature in the furnace is small, and the problem that the pressure and temperature in the furnace are easily changed due to the feeding can be effectively solved, which is beneficial to improving the quality of the produced glass, reducing the energy consumption of the glass kiln to maintain the temperature in the furnace, and reducing the volatilization waste of raw materials.

Description

Technical Field

[0001] The utility model belongs to the technical field of glass production, and in particular relates to a sealing and feeding structure for a glass kiln. Background Art

[0002] Glass kilns are necessary equipment for making glass, which are mainly used to melt glass raw materials and obtain molten glass liquid for production and processing. In the process of glass production, in order to ensure that the glass kiln is continuously supplied with molten glass liquid, it is necessary to regularly replenish raw materials into the glass kiln; currently, materials are generally filled with a spoon manually, the feeding port of the glass kiln is opened, and then the spoon head of the spoon is inserted into the furnace through the feeding port, and the spoon is turned over to complete the feeding; in order to reduce the intensity of manual labor and improve production safety, some of them also use mechanical structures instead of manual operation of the spoon to complete the feeding, such as the substrate glass kiln feeder positioning device disclosed in Chinese patent CN108285262B. This solution fixes the spoon handle of the spoon on a trolley that can move toward the feeding port, drives the spoon through the trolley and cooperates with the intermittent opening of the feeding port, so that the spoon is inserted into the furnace to complete the feeding.

[0003] However, no matter whether the material spoon is driven manually or mechanically, when the feeding port of the glass kiln is opened and the feeding spoon enters, the feeding port and the gap between the feeding port and the material spoon will connect the inside of the glass kiln with the external environment, which will not only cause the pressure and temperature in the furnace to decrease, but may also cause some raw materials to evaporate outward, resulting in unstable glass composition; sudden changes in pressure and temperature in the furnace, as well as unstable glass composition will not only affect the kiln process production process and the quality of the produced glass, but will also lead to increased production costs and energy waste. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, the purpose of the present utility model is to provide a sealed charging structure for a glass kiln, so as to solve the technical problem that the pressure and temperature in the glass kiln are easily changed during the charging process, thereby achieving the effect of improving the quality of glass and saving costs.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A sealed charging structure for a glass kiln, comprising a moving mechanism disposed outside the glass kiln and movable toward the glass kiln, a material spoon and a driving component for driving the material spoon to rotate about the axis of its handle, the handle of the material spoon being rotatably connected to the moving mechanism, the head of the material spoon facing the charging port on the glass kiln, the moving mechanism driving the material spoon to move toward the glass kiln, and allowing the head of the material spoon to enter the glass kiln through the charging port;

[0007] An elastic telescopic mechanism is provided on the moving mechanism, and the direction of the elastic force of the elastic telescopic mechanism corresponds to the length direction of the spoon handle. A sealing sleeve is provided on the outer movable sleeve of the material spoon, and the sealing sleeve is supported and connected to the elastic telescopic mechanism. The sealing sleeve is closed at one end facing the moving mechanism and cooperates with the spoon handle for sliding sealing. The sealing sleeve is open at one end facing the feeding port and exceeds or is flush with the end of the spoon head, and the size is adapted to the size of the feeding port.

[0008] Furthermore, the sealing sleeve includes a rigid first segment and a flexible second segment, the first segment and the second segment are sealingly connected and are respectively sleeved on the outside of the spoon head and the spoon handle, one end of the second segment facing the moving mechanism is slidingly and sealingly matched with the spoon handle and is connected to the moving mechanism, and the first segment is connected to the elastic telescopic mechanism.

[0009] Furthermore, the sealing sleeve is a rigid cylindrical structure with one end closed, the sealing sleeve movable sleeve is arranged outside the spoon head, the closed end of the sealing sleeve faces the moving mechanism, and the spoon handle passes through the through hole on the closed end of the sealing sleeve and slides to seal.

[0010] Furthermore, the moving mechanism includes a feeding track and a moving trolley arranged on the feeding track, the moving trolley can move along the feeding track, the spoon handle is rotatably connected to the moving trolley, the driving component is a motor and is arranged on the moving trolley, the motor is transmission-connected to the spoon handle to drive the spoon to rotate.

[0011] Furthermore, a material taking track perpendicular to the material feeding track is laid below the moving mechanism, a movable bracket movable along the material taking track is provided on the material taking track, and the material feeding track is arranged on the movable bracket.

[0012] Furthermore, a height adjustment mechanism is provided between the feeding track and the movable bracket so as to adjust the height of the movable trolley and the feeding spoon according to the demand.

[0013] Furthermore, the elastic telescopic mechanism includes a plurality of elastic telescopic rods which are circumferentially distributed outside the material spoon and arranged along the length direction of the material spoon.

[0014] Furthermore, a cooling cavity is provided in the wall of the spoon head, the spoon handle is tubular with one end closed and the other end connected to the cooling cavity, a cooling tube with a diameter smaller than the inner diameter of the spoon handle is provided in the spoon handle, one end of the cooling tube extends into the cooling cavity and the other end is sealed and passes through the sealed end of the spoon handle as a coolant outlet, and an opening is provided on the spoon handle near the sealed end as a coolant inlet.

[0015] Furthermore, a furnace door structure is provided at the feeding port, and the furnace door structure includes a door frame which is sealed and fitted on the outer wall of the glass kiln, the feeding port is located in the door frame, and a furnace door whose size matches the feeding port is provided in the door frame, the furnace door is slidably connected to the door frame so that the feeding port can be opened and closed by sliding the furnace door, the inner side surface of the furnace door is flush with the outer wall of the glass kiln and sealed, and the outer side surface of the furnace door is flush with the outer side surface of the door frame so that the sealing sleeve can be sealed and fitted with the door frame and the furnace door respectively when it reaches the feeding port.

[0016] Furthermore, a cylinder is provided on the door frame, and a telescopic end of the cylinder is connected to the furnace door to drive the furnace door to slide in the door frame.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] 1. The sealed charging structure of the glass kiln described in the utility model is provided with a sealing sleeve on the outer cover of the material spoon, and is connected to the moving mechanism through an elastic telescopic mechanism. The sealing sleeve is in contact and sealed with the furnace wall at the charging port when the material spoon enters and exits the glass kiln, so that the glass kiln is only connected with the sealing sleeve and is not completely connected with the outside world, which can reduce the impact of the charging operation on the pressure and temperature in the furnace, is beneficial to improving the quality of the produced glass, reducing the energy consumption of the glass kiln to maintain the temperature in the furnace, and reducing the waste of volatilization of raw materials.

[0019] 2. The sealed feeding structure of the glass furnace of the utility model is also provided with a movable bracket below the movable mechanism. The movable bracket moves along a material taking track perpendicular to the feeding track, so that the material taking and feeding processes are completed automatically, which is beneficial to improve the degree of automation of glass production and reduce the intensity of manual labor.

[0020] 3. The sealed charging structure of the glass kiln of the utility model is provided with a cooling cavity and a cooling pipe in the charging spoon. During the charging process, the cooling liquid is introduced to keep the charging spoon at a low temperature, thereby preventing the charging spoon from being deformed and corroded by high temperature, thereby increasing the service life of the charging spoon. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a front view of the sealing and charging structure of the glass furnace described in Example 1;

[0022] Figure 2 It is a top view of the sealing and charging structure of the glass furnace described in Example 1;

[0023] Figure 3 This is a schematic diagram of the structure of the material spoon, the sealing sleeve and the mobile trolley described in Example 1;

[0024] Figure 4 It is a structural schematic diagram of the movable bracket and the height adjustment mechanism described in Example 1;

[0025] Figure 5is a schematic diagram of the furnace door structure described in Example 1;

[0026] Figure 6 This is a schematic diagram of the structure of the material spoon, the sealing sleeve and the mobile trolley described in Example 2;

[0027] Among them, there are a glass kiln 1, a feeding port 11, a spoon handle 21, a spoon head 22, a cooling chamber 23, a cooling pipe 24, a coolant outlet 25, a coolant inlet 26, an elastic telescopic mechanism 3, a sealing sleeve 4, a first set section 41, a second set section 42, a support plate 43, a moving mechanism 5, a motor 51, a feeding track 52, a moving trolley 53, a material taking track 61, a moving bracket 62, an adjustment plate 63, a screw 64, a door frame 71, a furnace door 72, a cylinder 73, and a mounting frame 74. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the embodiments of the present utility model clearer, the technical solution in the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the present utility model.

[0029] Embodiment 1:

[0030] See also Figure 1 and Figure 2 A sealed charging structure for a glass furnace comprises a moving mechanism 5 which is arranged outside the glass furnace 1 and can move toward the glass furnace 1, a material spoon is arranged on the moving mechanism 5, a spoon handle 21 of the material spoon is rotatably connected with the moving mechanism 5, a spoon head 22 of the material spoon faces a charging port 11 on the glass furnace 1, and the moving mechanism 5 can drive the material spoon to move toward the glass furnace 1, so that the spoon head 22 enters the glass furnace 1 through the charging port 11;

[0031] See also Figure 3 , an elastic telescopic mechanism 3 is provided on the moving mechanism 5, the elastic force action direction of the elastic telescopic mechanism 3 corresponds to the length direction of the spoon handle 21, a sealing sleeve 4 is provided on the outer movable sleeve of the material spoon, the sealing sleeve 4 is supported and connected to the elastic telescopic mechanism 3, the sealing sleeve 4 is closed at one end of the moving mechanism 5 and slides and seals with the spoon handle 21, the sealing sleeve 4 is open at one end of the sealing sleeve 4 facing the feeding port 11 and exceeds or is flush with the end of the spoon head 22, and the size is adapted to the size of the feeding port 11, so that when the moving mechanism 5 drives the material spoon to move toward the glass kiln 1, the sealing sleeve 4 first reaches the feeding port 11 and seals; in this embodiment, the size of the sealing sleeve 4 is larger than the size of the feeding port 11, and the open end face of the sealing sleeve 4 can be covered on the furnace wall around the feeding port 11 to achieve abutment and sealing, in addition, a motor 51 for driving the material spoon to rotate is provided on the moving mechanism 5, so that after the material spoon enters the glass kiln 1, the material spoon is rotated 180° along the axis of the spoon handle 21 to pour out the raw materials in the spoon head 22.

[0032] The main action flow of the sealing and feeding structure of the glass kiln described in the utility model is as follows: before feeding, the feeding port 11 remains in a closed state; when feeding, the moving mechanism 5 moves toward the glass kiln 1, driving the sealing sleeve 4 and the material spoon containing the raw material to move toward the feeding port 11; due to the size relationship, the sealing sleeve 4 first reaches the feeding port 11, and the end of the sealing sleeve 4 facing the glass kiln 1 abuts against the furnace wall at the feeding port 11 to seal, so that the spoon head 22 is separated from the external environment; then the feeding port 11 is opened, and the opening and closing of the feeding port 11 does not affect the sealing abutment between the sealing sleeve 4 and the furnace wall. At this time, the glass kiln 1 is only connected with the sealing sleeve 4, and will not be completely connected with the outside world, which has little effect on the pressure and temperature in the furnace; the moving mechanism 5 continues to move toward the glass kiln 1, and the sealing sleeve 4 abuts against the glass kiln 1 and no longer moves forward, and the elastic telescopic machine The structure 3 is compressed to keep the sealing sleeve 4 in close contact with the furnace wall, and the material spoon continues to move forward with the moving mechanism 5, so that the spoon head 22 extends into the glass furnace 1 and flips to pour out the raw materials to complete the feeding. Since the sealing sleeve 4 covers the feeding port 11, the interior of the glass furnace 1 is only connected to the smaller space in the sealing sleeve 4, which is beneficial to reduce the volatilization of the raw materials; after the feeding is completed, the material spoon rotates, and the moving mechanism 5 moves away from the glass furnace 1 to move the material spoon out of the glass furnace 1, and the feeding port 11 is closed before the sealing sleeve 4 is separated from the glass furnace 1, so that the glass furnace 1 is always isolated from the external environment during the entire feeding process; during the entire feeding process, since the sealing sleeve 4 is fixed to the moving mechanism 5 by the elastic telescopic mechanism 3, and the closed end and the spoon handle 21 are in a rotating and sliding sealing cooperation, the sealing sleeve 4 will not rotate with the material spoon.

[0033] The glass furnace sealing feeding structure of the utility model drives the material spoon to move through the moving mechanism 5, so that the spoon head 22 containing the raw materials can enter and exit the glass furnace 1 through the feeding port 11; a sealing sleeve 4 is arranged on the outer cover of the material spoon, and is connected to the moving mechanism 5 through the elastic telescopic mechanism 3, so that the sealing sleeve 4 can move toward the glass furnace 1 synchronously with the moving mechanism 5 and the material spoon before abutting against the furnace wall, and after the sealing sleeve 4 abuts against the furnace wall, the elastic telescopic mechanism 3 is compressed, so that the moving mechanism 5 can further drive the material spoon to extend into the glass furnace 1 through the feeding port 11 to complete the feeding; During the period when the spoon enters and exits the glass kiln 1 through the feeding port 11, the sealing sleeve 4 is in contact and sealed with the furnace wall at the feeding port 11, and the glass kiln 1 is only connected with the sealing sleeve 4 and will not be completely connected with the outside world, which has little impact on the pressure and temperature in the furnace and can also reduce the volatilization of raw materials. The use of the utility model can make the glass kiln 1 always isolated from the external environment during the entire feeding process, and can effectively solve the problem that the feeding easily causes the pressure and temperature changes in the furnace, which is beneficial to improve the quality of the produced glass, reduce the energy consumption of the glass kiln 1 to maintain the temperature in the furnace, and reduce the waste of raw material volatilization.

[0034] See also Figure 1 and Figure 3Specifically, the sealing sleeve 4 includes a rigid first segment 41 and a flexible second segment 42. The first segment 41 and the second segment 42 are sealed and connected to each other and are respectively sleeved on the spoon head 22 and the spoon handle 21. One end of the second segment 42 facing the moving mechanism 5 rotates with the spoon handle 21 and slides and seals with it and is connected to the moving mechanism 5. The first segment 41 is connected to the elastic telescopic mechanism 3. It can be understood that the second segment 42 is not breathable while being flexible to ensure sealing and isolation, and has certain high temperature resistance, such as polyimide (PI) film and graphene / polyimide (GE / PI) film.

[0035] In this way, the sealing sleeve 4 always covers the entire material spoon. After the first sleeve section 41 abuts against the furnace wall, as the moving mechanism 5 continues to move toward the glass furnace 1, the elastic telescopic mechanism 3 is compressed and the second sleeve section 42 is folded and gathered.

[0036] See also Figure 1 and Figure 3 Since the first section 41 is far away from the moving mechanism 5, in order to prevent the sealing sleeve 4 from shaking when moving, in addition to the elastic telescopic mechanism 3 providing lateral support for the sealing sleeve 4, the end of the first section 41 facing the moving mechanism 5 is designed to protrude toward the inner side of the first section 41 to form a support plate 43, and the spoon handle 21 passes through the support hole opened on the support plate 43 and slides in cooperation; in this way, the first section 41 is also connected to the material spoon through the support plate 43, and the sealing sleeve 4 is supported by the material spoon to assist in supporting, thereby improving the structural stability.

[0037] See also Figure 1 and Figure 2 In this embodiment, the elastic telescopic mechanism 3 adopts a plurality of elastic telescopic rods which are circumferentially distributed outside the material spoon and arranged along the length direction of the material spoon; in this way, after the sealing sleeve 4 reaches the feeding port 11 before the material spoon, the sealing sleeve 4 abuts against the furnace wall, and as the moving mechanism 5 continues to move toward the glass furnace 1, the elastic telescopic rods are compressed, so that the sealing sleeve 4 maintains a close abutment with the furnace wall under the action of elastic force to achieve sealing, and after the feeding is completed and the material spoon leaves the glass furnace 1, when the moving mechanism 5 continues to move away from the glass furnace 1, the sealing sleeve 4 moves toward the glass furnace 1 relative to the material spoon under the action of elastic force and automatically returns to its original position for the next feeding.

[0038] See also Figure 1 and Figure 3In this embodiment, the moving mechanism 5 includes a feeding track 52 and a moving trolley 53 arranged on the feeding track 52. The feeding track 52 is laid along the length direction of the material spoon. The moving trolley 53 can move along the feeding track 52, and the material spoon is connected to the moving trolley 53. When feeding, the moving trolley 53 moves toward the glass kiln 1 along the feeding track 52, thereby driving the material spoon in and out of the glass kiln 1. In addition, there is a braking mechanism on the moving trolley 53. During the process of the moving trolley 53 driving the material spoon to extend into the furnace and then flipping and unloading the material, the braking mechanism makes the moving trolley 53 stationary on the feeding track 52, thereby preventing the moving trolley 53 from retreating under the elastic force of the elastic telescopic mechanism 3, so as to ensure that the sealing sleeve 4 abuts against the furnace wall and seals.

[0039] See also Figure 1 and Figure 4 , a feeding track 61 perpendicular to the feeding track 52 is also laid under the mobile mechanism 5, and a mobile bracket 62 that can move along the feeding track 61 is provided on the feeding track 61, and the feeding track 52 is arranged on the mobile bracket 62; in this way, before feeding, the mobile bracket 62 first moves along the feeding track 61, driving the feeding track 52, the moving trolley 53 and the material spoon thereon to reach the feeding point, and the raw materials are added to the material spoon through manual or mechanical structures. It can be understood that at this time, the sealing sleeve 4 can be moved toward the direction of the moving trolley 53 manually or with the help of other mechanical structures to expose the spoon head 22 for adding raw materials; then the mobile bracket 62 returns to its original position along the feeding track 61, and then the moving trolley 53 moves along the feeding track 52 to complete the feeding action; thereby, the entire feeding process is automatically completed, which is beneficial to improving the degree of automation of glass production and reducing manual labor intensity.

[0040] See also Figure 4 A height adjustment mechanism is also provided between the feeding track 52 and the movable bracket 62. Specifically, the height adjustment mechanism includes an adjustment plate 63 arranged above the movable bracket 62. The feeding track 52 is arranged on the adjustment plate 63. Screws 64 are vertically penetrated at the four corners of the adjustment plate 63. The lower end of the screw 64 is rotatably connected to the movable bracket 62, and the screw 64 is threadedly connected to the adjustment plate 63. In this way, the vertical distance between the adjustment plate 63 and the movable bracket 62 can be adjusted by rotating the screw 64, so as to flexibly adjust the height of the movable trolley 53 and the material spoon according to the size of the material spoon and the position of the feeding port 11, thereby ensuring that the movable trolley 53 can smoothly drive the material spoon in and out of the glass kiln 1, which is conducive to improving the flexibility of the use of the sealing and feeding structure of the glass kiln.

[0041] See also Figure 3A cooling cavity 23 is provided in the wall of the spoon head 22, the spoon handle 21 is tubular with one end closed and the other end connected to the cooling cavity 23, a cooling tube 24 with a diameter smaller than the inner diameter of the spoon handle 21 is provided in the spoon handle 21, one end of the cooling tube 24 extends into the cooling cavity 23, and the other end is sealed and passes through the sealed end of the spoon handle 21 as a coolant outlet 25, and an opening is provided on the spoon handle 21 near the sealed end as a coolant inlet 26; in this way, when adding materials, the coolant is introduced into the spoon handle 21 and the spoon head 22 through the coolant outlet 25, and is discharged through the coolant inlet 26 or a cooling cycle is performed, so that the material spoon maintains a low temperature during the feeding process, avoiding the material spoon from being deformed and eroded by high temperature, thereby improving the service life of the material spoon.

[0042] See also Figure 2 and Figure 5 In order to realize the opening and closing of the feeding port 11, a furnace door 72 structure is provided at the feeding port 11. The furnace door 72 structure includes a door frame 71 which is sealed and fitted on the outer wall of the glass furnace 1. The feeding port 11 is located in the door frame 71. A furnace door 72 whose size is adapted to the feeding port 11 is provided in the door frame 71. The furnace door 72 is slidably connected to the door frame 71 so that the feeding port 11 can be opened and closed by sliding the furnace door 72. The inner side of the furnace door 72 is flush with the outer wall of the glass furnace 1 and is sealed and fitted. The outer side of the furnace door 72 is flush with the outer side of the door frame 71 so that the sealing sleeve 4 is sealed and fitted with the door frame 71 and the furnace door 72 respectively when it reaches the feeding port 11. In this embodiment, the door frame 71 is rectangular and its length direction corresponds to the horizontal direction. The furnace door 72 can be opened and closed in the door frame 71. 1, the size of the furnace door 72 is larger than that of the charging port 11, one side of the door frame 71 is close to the charging port 11, and the other side is provided with a cylinder 73 for driving the furnace door 72 to slide. The furnace door 72 structure also includes a mounting frame 74, and the door frame 71 and the cylinder 73 are respectively mounted on the outer wall of the glass furnace 1 through the mounting frame 74; in this way, when the sealing sleeve 4 arrives at the charging port 11 with the moving trolley 53, its end face abuts against the door frame 71 and the furnace door 72 to achieve sealing, and then the furnace door 72 slides driven by the cylinder 73 to open the charging port 11. After the charging port 11 is fully opened, the furnace door 72 stops sliding and keeps abutting against the sealing sleeve 4, thereby ensuring that during the charging process, the inside of the glass furnace 1 is isolated from the outside through the sealing sleeve 4.

[0043] In the present embodiment, in order to facilitate the sealing with the door frame 71 and the furnace door 72, the first section 41 of the sealing sleeve 4 is square, and in order to improve the sealing performance, a sealing gasket (not shown in the figure) is also provided at the end of the first section 41 facing the glass kiln 1. In addition, in order to ensure the stability of the sealing sleeve 4, there are four elastic telescopic rods and they are distributed in a rectangular shape outside the material spoon. The four elastic telescopic rods extend horizontally, one end of which is fixedly connected to the four corners of the end of the first section 41 away from the glass kiln 1, and the other end is fixedly connected to the moving trolley 53.

[0044] Embodiment 2:

[0045] See also Figure 6 , which is different from Example 1 in that the sealing sleeve 4 is a rigid cylindrical structure with one end closed, similar to the first sleeve section 41 and the support plate 43 in Example 1, forming an integral structure, the sealing sleeve 4 is movably sleeved outside the spoon head 22, the closed end of the sealing sleeve 4 faces the moving mechanism 5, the spoon handle 21 passes through the through hole on the closed end of the sealing sleeve 4 and rotates and slides to seal, the sealing sleeve 4 is connected to the moving mechanism 5 through the elastic telescopic mechanism 3, and the flexible second sleeve section 42 is no longer needed; in this way, the internal space size of the sealing sleeve 4 connected to the inside of the glass kiln 1 during feeding can be reduced, further reducing the impact of feeding on the pressure and temperature in the furnace.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit the technical solution. Ordinary technicians in this field should understand that those modifications or equivalent replacements of the technical solution of the utility model without departing from the purpose and scope of the technical solution of the utility model should be included in the scope of the claims of the utility model.

Claims

1. A glass furnace sealing and feeding structure, characterized in that: The mobile mechanism includes a moving mechanism disposed outside the glass furnace and movable toward the glass furnace, a material spoon and a driving component for driving the material spoon to rotate about the axis of its handle are disposed on the moving mechanism, the handle of the material spoon is rotatably connected to the moving mechanism, the head of the material spoon faces a feeding port on the glass furnace, and the moving mechanism can drive the material spoon to move toward the glass furnace so that the head of the material spoon enters the glass furnace through the feeding port; An elastic telescopic mechanism is provided on the moving mechanism, and the direction of the elastic force of the elastic telescopic mechanism corresponds to the length direction of the spoon handle. A sealing sleeve is provided on the outer movable sleeve of the material spoon, and the sealing sleeve is supported and connected to the elastic telescopic mechanism. The sealing sleeve is closed at one end facing the moving mechanism and cooperates with the spoon handle for sliding sealing. The sealing sleeve is open at one end facing the feeding port and exceeds or is flush with the end of the spoon head, and the size is adapted to the size of the feeding port.

2. A glass furnace sealing and charging structure according to claim 1, characterized in that: The sealing sleeve includes a rigid first segment and a flexible second segment. The first segment and the second segment are sealed and respectively sleeved on the spoon head and the spoon handle. One end of the second segment facing the moving mechanism is slidably and sealably matched with the spoon handle and connected to the moving mechanism. The first segment is connected to the elastic telescopic mechanism.

3. A glass furnace sealing and charging structure according to claim 1, characterized in that: The sealing sleeve is a rigid cylindrical structure with one end closed. The movable sleeve of the sealing sleeve is arranged outside the spoon head. The closed end of the sealing sleeve faces the moving mechanism. The spoon handle passes through the through hole on the closed end of the sealing sleeve and slides to seal.

4. A glass furnace sealing and charging structure according to claim 1, characterized in that: The moving mechanism includes a feeding track and a moving trolley arranged on the feeding track. The moving trolley can move along the feeding track. The spoon handle is rotatably connected to the moving trolley. The driving component is a motor and is arranged on the moving trolley. The motor is transmission-connected to the spoon handle to drive the spoon to rotate.

5. A glass furnace sealing and charging structure according to claim 4, characterized in that: A material taking track perpendicular to the material feeding track is also laid below the moving mechanism, a moving bracket which can move along the material taking track is arranged on the material taking track, and the material feeding track is arranged on the moving bracket.

6. A glass furnace sealing and charging structure according to claim 5, characterized in that: A height adjustment mechanism is provided between the feeding track and the mobile bracket so as to adjust the height of the mobile trolley and the feeding spoon according to the demand.

7. The glass furnace sealing and charging structure according to claim 1, characterized in that: The elastic telescopic mechanism comprises a plurality of elastic telescopic rods which are circumferentially distributed outside the material spoon and arranged along the length direction of the material spoon.

8. The glass furnace sealing and charging structure according to claim 1, characterized in that: A cooling cavity is provided in the wall of the spoon head, the spoon handle is tubular with one end closed and the other end connected to the cooling cavity, a cooling tube with a diameter smaller than the inner diameter of the spoon handle is provided in the spoon handle, one end of the cooling tube extends into the cooling cavity and the other end is sealed and passes through the sealed end of the spoon handle as a coolant outlet, and an opening is provided on the spoon handle near the sealed end as a coolant inlet.

9. The glass furnace sealing and charging structure according to claim 1, characterized in that: A furnace door structure is provided at the feeding port, and the furnace door structure includes a door frame sealed and fitted on the outer wall of the glass kiln. The feeding port is located in the door frame, and a furnace door with a size matching the feeding port is provided in the door frame. The furnace door is slidably connected to the door frame so that the feeding port can be opened and closed by sliding the furnace door. The inner side surface of the furnace door is flush with the outer wall of the glass kiln and sealed, and the outer side surface of the furnace door is flush with the outer side surface of the door frame so that the sealing sleeve is sealed and fitted with the door frame and the furnace door respectively when it reaches the feeding port.

10. A glass furnace sealing and charging structure according to claim 9, characterized in that: A cylinder is arranged on the door frame, and a telescopic end of the cylinder is connected to the furnace door so as to drive the furnace door to slide in the door frame.

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