CN115215533B

CN115215533B - Glass melting furnace with overflow device

Info

Publication number: CN115215533B
Application number: CN202210882261.5A
Authority: CN
Inventors: 戴季初; 樊兴生; 叶振; 吕常欢; 郑小学; 冯峰; 苏彦斌; 马路广
Original assignee: Triumph Junheng Pharmaceutical Glass Qingdao Co ltd
Current assignee: Triumph Junheng Pharmaceutical Glass Qingdao Co ltd
Priority date: 2022-07-26
Filing date: 2022-07-26
Publication date: 2023-04-25
Anticipated expiration: 2042-07-26
Also published as: CN115215533A

Abstract

The invention provides a glass melting furnace with an overflow device, which belongs to the technical field of glass melting furnaces and comprises a furnace body, an overflow box, a discharge pipe, a sliding pipe and a gravity assembly. The overflow box is positioned in the kiln body and the side wall is provided with an overflow hole. The discharging pipe is arranged below the overflow box and is vertically arranged, and the middle part of the discharging pipe penetrates through the kiln body in a sealing manner and is fixedly connected with the kiln body. The sliding pipe coaxially slides and penetrates through the discharging pipe, the sliding pipe is in circumferential sealing fit with the discharging pipe, and the upper end of the sliding pipe is fixedly connected with the overflow box and communicated with the overflow box. The gravity component is fixedly connected with the overflow box. According to the glass melting furnace with the overflow device, glass solution at the top of the furnace body flows into the overflow box along the overflow holes and flows out of the furnace body along the sliding pipe and the discharging pipe, so that the problem that impurities in glass solution at the top of the furnace body can influence the quality of the glass pipe is avoided.

Description

Glass melting furnace with overflow device

Technical Field

The invention belongs to the technical field of glass melting furnaces, and particularly relates to a glass melting furnace with an overflow device.

Background

In the production of neutral borosilicate glass tubes, the raw materials are placed into a glass melting furnace for sufficient melting and refining to form molten glass. In the process, impurities such as metamorphic silicon-aluminum-rich impurities can be accumulated on the top of the glass solution in the kiln body, and the glass solution can form knots or stripes when the glass tube is formed, so that the quality of the glass tube is affected.

Disclosure of Invention

The invention aims to provide a glass melting furnace with an overflow device, and aims to solve the problem that impurities in glass liquid at the top of the inner part of the furnace body can affect the quality of glass tubes.

In order to achieve the above purpose, the invention adopts the following technical scheme: the glass melting furnace with the overflow device comprises a furnace body, an overflow box, a discharging pipe, a sliding pipe and a gravity assembly. The overflow box is located in the kiln body, the side wall of the overflow box is provided with overflow holes, and the overflow box is used for floating on glass solution in the kiln body. The discharging pipe is located below the overflow box and is vertically arranged, and the middle of the discharging pipe penetrates through the kiln body in a sealing mode and is fixedly connected with the kiln body. The sliding pipe coaxially slides and penetrates through the discharging pipe, the sliding pipe is in circumferential sealing fit with the discharging pipe, and the upper end of the sliding pipe is fixedly connected with the overflow box and communicated with the inside of the overflow box. The gravity assembly is fixedly connected with the overflow box, so that the bottom of the overflow hole is sunk below the liquid level of the glass solution in the kiln body.

In one possible implementation, the glass melting furnace with overflow means further comprises a control lever. The control rod is connected with the gravity assembly, the control rod is provided with a first connecting part which is vertically arranged, and the first connecting part penetrates through the top wall of the kiln body in a sliding mode and is fixedly connected with the overflow box.

In one possible implementation manner, the control rod is of a U-shaped structure and further comprises a vertically arranged second connecting portion, the gravity assembly is arranged at the bottom of the second connecting portion, and the glass melting furnace with the overflow device further comprises a protective box. The protective box is positioned at one side of the horizontal direction of the kiln body and is fixedly connected with the kiln body. The gravity assembly is located in the protective box, and the second connecting portion penetrates through the top wall of the protective box in a sliding mode.

In one possible implementation manner, the protection box comprises a box body and a first opening and closing plate, the box body is far away from an opening at one end of the kiln body and is detachably connected with the first opening and closing plate, the first opening and closing plate seals the box body at one end far away from the kiln body, and the gravity assembly comprises a gravity block and a gravity box. The gravity blocks are a plurality of. The gravity box is fixedly arranged at the bottom of the second connecting part, and is provided with a feeding hole for placing the gravity block and a taking-out hole for taking out the gravity block.

In one possible implementation manner, the feeding hole is located at the top of one of the side walls of the gravity box, the gravity blocks in the gravity box are in sliding fit with the inner side walls of the gravity box, all the gravity blocks in the gravity box are stacked along the vertical direction, the hole depth direction of the taking out hole is horizontally arranged and vertically penetrates through the two parallel side walls of the gravity box, the lower end face of the taking out hole extends to the bottom wall of the gravity box, and the upper end of the taking out hole is higher than the gravity blocks of the bottom layer in the gravity box.

In a possible implementation manner, a vertically arranged long hole is formed in the side wall, perpendicular to the hole depth direction, of the box body, a containing groove is formed in the end face, facing to one end of the long hole, of the gravity block in the gravity box, the containing groove penetrates through the gravity block downwards, a notch is formed in the bottom wall of the gravity box, the notch penetrates through the bottom wall of the gravity box in the hole depth direction of the hole, and the glass melting furnace with the overflow device further comprises a pushing piece. The pushing piece comprises a rod-shaped portion and a pushing portion arranged at one end of the rod-shaped portion, the rod-shaped portion is arranged in the hole depth direction of the taking-out hole and the middle portion of the rod-shaped portion is slidably arranged in the strip hole, the rod-shaped portion is lower than the bottom wall of the gravity box, and the pushing portion is used for penetrating through the accommodating groove of the gravity block at the bottom layer in the gravity box and the opening.

In one possible implementation, the top surface of the extraction aperture is lower than the top surface of the gravity block adjacent to the bottom layer of the gravity block in the gravity box.

In one possible implementation, the glass melting furnace with the overflow device is characterized by further comprising a plurality of bearing shafts and a pulling plate. The bearing shafts are located in the same horizontal space and are arranged in parallel, the bearing shafts are arranged in the depth direction of the feeding hole and penetrate through the side wall of the feeding hole in a sliding mode, the distance between the bearing shafts and the bottom surface of the feeding hole is smaller than the thickness of the gravity block in the vertical direction in the gravity box. The pulling plate is perpendicular to the bearing shafts and fixedly connected with one end, facing the outside of the gravity box, of all the bearing shafts.

In one possible implementation, the glass melting furnace with the overflow device further comprises a pull ring. The pull ring is fixedly connected with the pulling plate.

In one possible implementation manner, the bottom end opening of the box body, the gravity box further comprises a second opening and closing plate located below the box body, the bottom end of the box body is provided with an outward folded edge, the second opening and closing plate is attached to the bottom surface of the box body so as to close the bottom end of the box body, and the glass melting furnace with the overflow device further comprises a plurality of groups of elastic components, wherein the elastic components comprise a fixed shaft and a compression spring. The fixed shaft is vertically arranged and fixedly arranged on the second opening and closing plate, the fixed shaft penetrates through the folded edge in a sliding mode, and the top of the fixed shaft is provided with a limiting part protruding outwards. The compression spring is sleeved on the fixed shaft, and two ends of the compression spring are respectively abutted to the folded edge and the limiting part.

In this embodiment of the application, gravity subassembly makes the bottom of overflow aperture sink into the glass solution's in the kiln liquid level below, and the glass solution at the internal top of kiln just like this can flow into the overflow incasement along the overflow aperture to outside the kiln body is gone out along slip pipe, ejection of compact pipe, thereby avoid the impurity in the glass solution at the internal top of kiln can influence the problem of glass pipe's quality.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments or the description of the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of an axial sectional structure of a glass melting furnace with an overflow device according to an embodiment of the present invention;

FIG. 2 is an enlarged schematic view of the portion A in FIG. 1;

FIG. 3 is a schematic diagram of a cross-sectional structure of an overflow box, a discharge pipe, a sliding pipe, etc. in a glass melting furnace with an overflow device according to an embodiment of the present invention;

FIG. 4 is a schematic diagram of an axial sectional structure of a control rod, a protective box, a gravity assembly and the like in a glass melting furnace with an overflow device according to an embodiment of the present invention after connection;

FIG. 5 is an enlarged schematic view of the portion B in FIG. 4;

FIG. 6 is a schematic diagram of an axial structure of a glass melting furnace with an overflow device according to an embodiment of the present invention, in which a control rod, a protection box, a gravity assembly, etc. are connected and then a first opening/closing plate is removed;

FIG. 7 is an enlarged schematic view of the portion C in FIG. 6;

FIG. 8 is a schematic diagram of an axial structure of a gravity box in a glass melting furnace with an overflow device according to an embodiment of the present invention;

fig. 9 is a schematic diagram of an axial measurement structure of a supporting shaft, a pulling plate, a pull ring and the like in a glass melting furnace with an overflow device according to an embodiment of the present invention after connection.

In the figure: 1. a kiln body; 2. an overflow box; 21. an overflow aperture; 3. a discharge pipe; 4. a sliding tube; 5. a gravity assembly; 51. a gravity block; 511. a receiving groove; 52. a gravity box; 521. a feed hole; 522. a take-out hole; 523. A notch; 6. a control lever; 61. a first connection portion; 62. a second connecting portion; 7. a protective box; 71. a case; 711. a slit hole; 712. folding edges; 713. a protruding portion; 7131. a threaded hole; 72. a first opening/closing plate; 73. a second opening/closing plate; 8. a pushing member; 81. a rod-shaped part; 82. pushing the top; 9. a bearing shaft; 10. pulling the plate; 110. a pull ring; 120. an elastic component; 1201. a fixed shaft; 12011. a limit part; 1202. a compression spring; 130. and (5) connecting bolts.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.

It should be further noted that the drawings and embodiments of the present invention mainly describe the concept of the present invention, and on the basis of the concept, some specific forms and arrangements of connection relations, position relations, power units, power supply systems, hydraulic systems, control systems, etc. may not be completely described, but those skilled in the art may implement the specific forms and arrangements described above in a well-known manner on the premise of understanding the concept of the present invention.

When an element is referred to as being "fixed" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

The terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the same sense as the orientation or positional relationship shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" means two or more, and the meaning of "a number" means one or more, unless specifically defined otherwise.

Referring to fig. 1 and 3 together, a glass melting furnace with an overflow device according to the present invention will now be described. The glass melting furnace with the overflow device comprises a furnace body 1, an overflow box 2, a discharging pipe 3, a sliding pipe 4 and a gravity assembly 5. The overflow box 2 is positioned in the kiln body 1, the side wall of the overflow box is provided with an overflow hole 21, and the overflow box 2 is used for floating on glass solution in the kiln body 1. The discharging pipe 3 is arranged below the overflow box 2 and is vertically arranged, and the middle part of the discharging pipe 3 penetrates through the kiln body 1 in a sealing manner and is fixedly connected with the kiln body 1. The sliding pipe 4 is coaxially and slidably arranged in the discharging pipe 3 in a penetrating manner, the sliding pipe 4 is in circumferential sealing fit with the discharging pipe 3, and the upper end of the sliding pipe 4 is fixedly connected with the overflow box 2 and is communicated with the inside of the overflow box 2. The gravity assembly 5 is fixedly connected with the overflow box 2 so that the bottom of the overflow hole 21 is sunk below the liquid level of the glass solution in the kiln body 1.

Compared with the prior art, the glass melting furnace with the overflow device provided by the invention has the advantages that the bottom of the overflow hole 21 is sunk below the liquid level of glass solution in the furnace body 1 by the gravity assembly 5, so that the glass solution at the top in the furnace body 1 flows into the overflow box 2 along the overflow hole 21 and flows out of the furnace body 1 along the sliding pipe 4 and the discharging pipe 3, and the problem that impurities in the glass solution at the top in the furnace body 1 influence the quality of the glass pipe is avoided.

In the prior art, the liquid level of the glass solution in the kiln body 1 is changed, but the bottom of the overflow hole 21 always sinks below the liquid level, so that the above function can be always realized.

Further, a container may be provided below the tapping pipe 3 to collect the tapped molten glass. In order to improve efficiency, the overflow holes 21 may be provided in a plurality of vertically disposed side walls of the overflow tank 2, and the plurality of overflow holes 21 may have the same height. To reduce waste, the top of the overflow aperture 21 is located above the level of the glass solution in the kiln body 1.

In some embodiments, referring to FIG. 1, the overflow device-equipped glass melting furnace further includes a control lever 6. The control rod 6 is connected with the gravity assembly 5, the control rod 6 is provided with a first connecting part 61 which is vertically arranged, and the first connecting part 61 penetrates through the top wall of the kiln body 1 in a sliding manner and is fixedly connected with the overflow box 2. The gravity assembly 5 is fixedly connected with the overflow box 2 through the control rod 6, and the first connecting part 61 can limit the overflow box 2 from drifting around in the kiln body 1, so that the overflow box 2 is prevented from colliding with other objects in other kiln bodies 1.

In some embodiments, referring to fig. 1, 2, 4 and 6, the control rod 6 has a U-shaped structure, and further has a vertically arranged second connecting portion 62, the gravity assembly 5 is disposed at the bottom of the second connecting portion 62, and the glass melting furnace with the overflow device further includes a protection box 7. The protective box 7 is positioned at one side of the kiln body 1 in the horizontal direction and is fixedly connected with the kiln body 1. Wherein the gravity assembly 5 is located in the protective box 7, and the second connecting portion 62 slides through the top wall of the protective box 7. By means of the protective box 7, it is possible to prevent someone from touching the gravity assembly 5 by mistake or from placing some object on the gravity assembly 5 by mistake, so that the height of the overflow aperture 21 is affected.

In some embodiments, referring to fig. 2, 4, 6 and 8, the protection box 7 includes a box 71 and a first opening and closing plate 72, an end of the box 71 remote from the kiln body 1 is opened and detachably connected to the first opening and closing plate 72, the first opening and closing plate 72 closes an end of the box 71 remote from the kiln body 1, and the gravity assembly 5 includes a gravity block 51 and a gravity box 52. The gravity block 51 is a plurality. The gravity box 52 is fixedly arranged at the bottom of the second connecting part 62, and the gravity box 52 is provided with a feeding hole 521 for placing the gravity block 51 and a taking-out hole 522 for taking out the gravity block 51. By removing the first shutter 72, the gravity block 51 can be placed in the gravity box 52 through the feed hole 521 or the gravity block 51 in the gravity box 52 can be taken out through the take-out hole 522, thereby changing the depth of sinking the bottom of the overflow hole 21 into the glass solution. When the speed of the impurities such as metamorphic silicon-rich aluminum is higher, a certain gravity block 51 is added into the gravity box 52, so that the depth of the glass solution sunk into the bottom of the overflow hole 21 is deepened, the speed of the glass solution at the top flowing into the overflow box 2 is increased, the impurities are timely removed, when the speed of the impurities such as metamorphic silicon-rich aluminum is lower, the certain gravity block 51 is taken out from the gravity box 52 through the taking-out hole 522, the depth of the glass solution sunk into the bottom of the overflow hole 21 is made shallow, the speed of the glass solution at the top flowing into the overflow box 2 is reduced, and the excessive glass solution flowing into the overflow box 2 is avoided.

Further, one end of the box 71 far away from the kiln body 1 is provided with at least two protruding parts 713 protruding outwards, the protruding parts 713 are provided with threaded holes 7131, the threaded holes 7131 are internally connected with connecting bolts 130 in a threaded manner, and the connecting bolts 130 penetrate through the second opening and closing plate 73, so that the box 71 and the second opening and closing plate 73 can be detachably connected.

In some embodiments, referring to fig. 4 and 8, the feed hole 521 is located at the top of one of the side walls of the gravity box 52, the gravity blocks 51 in the gravity box 52 are slidably attached to the inner side wall of the gravity box 52, all the gravity blocks 51 in the gravity box 52 are stacked in the vertical direction, the hole depth direction of the take-out hole 522 is horizontally arranged and vertically penetrates through the two parallel side walls of the gravity box 52, the lower end surface of the take-out hole 522 extends to the bottom wall of the gravity box 52, and the upper end of the take-out hole 522 is higher than the gravity block 51 at the bottom layer in the gravity box 52. After the gravity block 51 is placed into the gravity box 52 through the feeding hole 521, the gravity block 51 slides down in the gravity box 52, the gravity block 51 at the bottom layer can be pushed out of the gravity box 52 through the taking-out hole 522, and then the gravity block 51 above falls down.

In some embodiments, referring to fig. 4 to 7, a vertically arranged elongated hole 711 is provided on one of the side walls of the case 71 perpendicular to the hole depth direction of the extraction hole 522, a receiving groove 511 is provided on the end face of the gravity block 51 in the gravity case 52 facing one end of the elongated hole 711, the receiving groove 511 penetrates the gravity block 51 downwards, a notch 523 is provided on the bottom wall of the gravity case 52, the notch 523 penetrates the bottom wall of the gravity case 52 along the hole depth direction of the extraction hole 522, and the glass melting furnace with the overflow device further includes a pushing member 8. The pushing member 8 includes a rod portion 81 and a pushing portion 82 disposed at one end of the rod portion 81, wherein the rod portion 81 is disposed along a hole depth direction of the extraction hole 522 and the middle portion is slidably disposed in the elongated hole 711, the rod portion 81 is lower than the bottom wall of the gravity box 52, and the pushing portion 82 is disposed in the accommodating groove 511 and the opening 523 of the gravity block 51 penetrating the bottom layer in the gravity box 52. The operator holds the rod-shaped portion 81 at one end outside the case 71 and then moves the rod-shaped portion 81 in the hole depth direction of the take-out hole 522, so that the push-top 82 pushes the gravity block 51 at the bottom layer inside the gravity box 52, and then pushes the gravity block 51 out of the gravity box 52, so that when the gravity block 51 above the gravity box 52 falls down, the gravity block falls on the bottom wall of the gravity box 52 and cannot be crashed on the pushing member 8, thereby avoiding impacting the hand of the operator holding the rod-shaped portion 81, and the first opening and closing plate 72 is not opened for operation, so that the safety of operation can be ensured.

Further, the gravity center of the gravity block 51 in the gravity box 52 may be located at a side of the accommodating groove 511 away from the elongated hole 711, so that when the pushing member 8 pushes the bottom gravity block 51 out of the gravity box 52, the gravity block 51 will automatically fall down from the pushing member 8 under the action of gravity.

In some embodiments, referring to fig. 4, the top surface of the extraction aperture 522 is lower than the top surface of the gravity block 51 adjacent to the bottom gravity block 51 within the gravity box 52. This prevents the weight blocks 51 adjacent to the weight blocks 51 of the floor from moving together with the weight blocks 51 of the floor when the weight blocks 51 of the floor in the gravity box 52 are pushed.

In some embodiments, referring to fig. 4, 6, 8 and 9, the glass melting furnace with overflow device is characterized by further comprising a plurality of support shafts 9 and pulling plates 10. The plurality of bearing shafts 9 are positioned in the same horizontal space and are arranged in parallel, the bearing shafts 9 are arranged along the hole depth direction of the feeding hole 521 and penetrate through the side wall of the gravity box 52 in a sliding manner for arranging the feeding hole 521, and the distance between the bearing shafts 9 and the bottom surface of the feeding hole 521 is smaller than the thickness of the gravity block 51 in the gravity box 52 along the vertical direction. The pulling plate 10 is perpendicular to the bearing shafts 9 and fixedly connected with one end of all the bearing shafts 9 facing the outside of the gravity box 52. When the gravity block 51 is put into the gravity box 52 through the feeding hole 521, the gravity block 51 is firstly placed on the bearing shaft 9, so that the gravity block 51 is conveniently adjusted, after the gravity block 51 is in sliding fit with the inner side wall of the gravity box 52, all the bearing shafts 9 are driven to slide outwards of the gravity box 52, and after all the bearing shafts 9 are withdrawn from the inner space of the gravity box 52, the gravity block 51 can slide freely.

In some embodiments, referring to FIG. 9, the overflow device glass melter further comprises a pull ring 110. The pull ring 110 is fixedly connected with the pulling plate 10. All the bearing shafts 9 are conveniently driven to slide through the pull rings 110.

In some embodiments, referring to fig. 2 and 6, the bottom end opening of the box 71, the gravity box 52 further includes a second shutter plate 73 located below the box 71, the bottom end of the box 71 has an outward flange 712, the second shutter plate 73 is attached to the bottom surface of the box 71 to close the bottom end of the box 71, the glass melting furnace with overflow device further includes several sets of elastic assemblies 120, and the elastic assemblies 120 include a fixed shaft 1201 and a compression spring 1202. The fixed shaft 1201 is vertically disposed and fixedly disposed on the second opening/closing plate 73, the fixed shaft 1201 penetrates the folded edge 712 in a sliding manner, and the top of the fixed shaft 1201 has a limiting portion 12011 protruding outwards. The compression spring 1202 is sleeved on the fixed shaft 1201, and two ends of the compression spring 1202 are respectively abutted against the folded edge 712 and the limiting part 12011. When the pushing member 8 pushes out the gravity block 51 at the bottom layer in the gravity box 52 from the gravity box 52, the gravity block is dropped onto the second opening and closing plate 73, the second opening and closing plate 73 drives the fixed shaft 1201 to slide downwards, at this time, the gravity block 51 can be taken out through the gap between the second opening and closing plate 73 and the bracket of the box 71, and finally the resilience force of the compression spring 1202 makes the second opening and closing plate 73 move upwards with the fixed shaft 1201 until the second opening and closing plate 73 is attached to the bottom surface of the box 71.

The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.

Claims

1. Glass melting furnace with overflow device, including the kiln body, its characterized in that still includes:

the overflow box is positioned in the kiln body, the side wall of the overflow box is provided with overflow holes, and the overflow box is used for floating on glass solution in the kiln body;

the discharging pipe is positioned below the overflow box and is vertically arranged, and the middle part of the discharging pipe penetrates through the kiln body in a sealing manner and is fixedly connected with the kiln body;

the sliding pipe is coaxially and slidably arranged in the discharging pipe in a penetrating manner, the sliding pipe is in circumferential sealing fit with the discharging pipe, and the upper end of the sliding pipe is fixedly connected with the overflow box and is communicated with the inside of the overflow box; the gravity assembly is fixedly connected with the overflow box so that the bottom of the overflow hole is sunk below the liquid level of the glass solution in the kiln body;

the control rod is connected with the gravity assembly and is provided with a first connecting part which is vertically arranged, the first connecting part penetrates through the top wall of the kiln body in a sliding mode and is fixedly connected with the overflow box, the control rod is of a U-shaped structure and is also provided with a second connecting part which is vertically arranged, and the gravity assembly is arranged at the bottom of the second connecting part; and

the protective box is positioned at one side of the horizontal direction of the kiln body and is fixedly connected with the kiln body; wherein the gravity assembly is positioned in the protective box, and the second connecting part slides to penetrate through the top wall of the protective box; the protective box comprises a box body and a first opening and closing plate, wherein one end of the box body, which is far away from the kiln body, is opened and is detachably connected with the first opening and closing plate, and the first opening and closing plate seals one end of the box body, which is far away from the kiln body;

the gravity assembly includes:

the gravity blocks are a plurality of;

the gravity box is fixedly arranged at the bottom of the second connecting part and is provided with a feeding hole for placing the gravity block and a taking-out hole for taking out the gravity block.

2. The glass melting furnace with overflow device according to claim 1, wherein the feeding hole is positioned at the top of one side wall of the gravity box, the gravity blocks in the gravity box are in sliding fit with the inner side wall of the gravity box, all the gravity blocks in the gravity box are stacked along the vertical direction, the hole depth direction of the extraction hole is horizontally arranged and vertically penetrates through two parallel side walls of the gravity box, the lower end face of the extraction hole extends to the bottom wall of the gravity box, and the upper end of the extraction hole is higher than the gravity blocks at the bottom layer in the gravity box.

3. The glass melting furnace with an overflow device according to claim 1, wherein one of the side walls of the box body, which is perpendicular to the hole depth direction of the take-out hole, is provided with a vertically arranged elongated hole, the end face of the gravity block in the gravity box, which faces one end of the elongated hole, is provided with a containing groove, the containing groove penetrates through the gravity block downwards, the bottom wall of the gravity box is provided with a notch, and the notch penetrates through the bottom wall of the gravity box along the hole depth direction of the take-out hole, and the glass melting furnace with the overflow device further comprises:

the pushing piece comprises a rod-shaped portion and a pushing portion arranged at one end of the rod-shaped portion, the rod-shaped portion is arranged in the hole depth direction of the taking-out hole and the middle portion of the rod-shaped portion is slidably arranged in the strip hole, the rod-shaped portion is lower than the bottom wall of the gravity box, and the pushing portion is used for penetrating through the accommodating groove of the gravity block at the bottom layer in the gravity box and the opening.

4. The overflow device glass melting furnace of claim 2 wherein the top surface of the take-out hole is lower than the top surface of the gravity block adjacent to the gravity block of the bottom layer in the gravity box.

5. The overflow device equipped glass melting furnace of claim 1, further comprising:

the bearing shafts are arranged in the same horizontal space and are arranged in parallel, the bearing shafts are arranged along the depth direction of the feeding hole and penetrate through the side wall of the gravity box in a sliding manner, the distance between the bearing shafts and the bottom surface of the feeding hole is smaller than the thickness of the gravity block in the gravity box along the vertical direction;

and the pulling plate is perpendicular to the bearing shafts and fixedly connected with one end of all the bearing shafts facing the outside of the gravity box.

6. The overflow device equipped glass melting furnace of claim 5, further comprising:

and the pull ring is fixedly connected with the pulling plate.

7. The glass melting furnace with overflow device as in claim 1, wherein the bottom end of the box is open, the gravity box further comprises a second opening and closing plate positioned below the box, the bottom end of the box is provided with an outward folded edge, the second opening and closing plate is attached to the bottom surface of the box to close the bottom end of the box, the glass melting furnace with overflow device further comprises a plurality of groups of elastic components, and the elastic components comprise:

the fixed shaft is vertically arranged and fixedly arranged on the second opening and closing plate, the fixed shaft penetrates through the folded edge in a sliding manner, and the top of the fixed shaft is provided with a limiting part protruding outwards;

and the compression spring is sleeved on the fixed shaft, and two ends of the compression spring are respectively abutted with the folded edge and the limiting part.