CN106813496B - Muffle furnace, sealing cover thereof and tool for operating sealing cover - Google Patents

Abstract

The utility model relates to a muffle furnace and sealed lid thereof, and be used for operating the instrument of sealed lid, wherein, the sealed lid of muffle furnace includes sealed lid body, be formed with the temperature measurement mouth that is linked together with the external world on the sealed lid body, the last respectively slidable of temperature measurement mouth is opened and is covered with transparent first baffle and is used for blockking the volatile matter of heating element and adheres to the second baffle of first baffle, the sealed lid of muffle furnace has first operating position and second operating position, at first operating position, first baffle and second baffle all cover the temperature measurement mouth, at second operating position, the temperature measurement mouth is putd aside to the second baffle, so that the thermoscope can see through the temperature in first baffle measurement muffle furnace. Through the technical scheme, the sealing cover not only can monitor the temperature in the muffle furnace and the service condition of the heating element in real time, but also can avoid the influence of volatile substances generated by the heating element in the muffle furnace, especially a silicon carbide rod, on the observation of the condition in the furnace, so that the working efficiency is greatly improved.

Description

Muffle furnace, sealing cover thereof and tool for operating sealing cover

Technical Field

The present disclosure relates to the field of glass substrate production, and in particular, to a muffle furnace, a sealing cover thereof, and a tool for operating the sealing cover.

Background

In the production process of the glass substrate, ingredients are heated and liquefied by a kiln, filtered and clarified, and molten glass flows into a forming device to overflow and be drawn down to form a product. The muffle furnace is used as important forming equipment, the overflow bricks are arranged in the muffle furnace, the silicon carbon rods used for heating the overflow bricks are arranged around the overflow bricks, and the temperature and the use condition of the silicon carbon rods need to be strictly controlled for keeping the state of molten glass in the muffle furnace. Among the correlation technique, detachably is provided with the sealed lid that is used for sealing the muffle on the muffle, detects the stove elema through the mode of pulling down sealed lid, will lead to the calorific loss of elema in the muffle and the temperature field fluctuation in the muffle, influences glass substrate's production.

Disclosure of Invention

The first purpose of this disclosure is to provide a sealed lid of muffle furnace, can carry out real-time supervision to the temperature in the muffle furnace and heating element's in service behavior through this sealed lid, control the temperature field in the muffle furnace more accurately, can in time adjust the working parameter of muffle furnace according to heating element's in service behavior, avoid influencing the normal production of glass substrate because heating element ageing scheduling problem, can also avoid simultaneously that the volatile materials that heating element produced in the muffle furnace influence the observation of the condition in the furnace.

A second object of the present disclosure is to provide a muffle on which the seal lid provided by the present disclosure is used.

A third object of the present disclosure is to provide a tool for operating a muffle sealing cover provided by the present disclosure.

In order to achieve the above purpose, the present disclosure provides a muffle sealing cover, a heating element is arranged in a muffle, the muffle sealing cover comprises a sealing cover body which is detachably sealed, a temperature measuring port which is communicated with the outside is formed on the sealing cover body, a transparent first baffle and a second baffle which is used for blocking volatile matters of the heating element are covered on the temperature measuring port in a slidable and openable manner, the volatile matters of the heating element are adhered to the second baffle of the first baffle, the muffle sealing cover has a first working position and a second working position, the first working position is provided with the first baffle and the second baffle which both cover the temperature measuring port, the second working position is provided with the second baffle which is moved away from the temperature measuring port, so that a temperature measuring instrument can be used for measuring the temperature in the muffle through the first baffle.

Optionally, a boss extending around the temperature measuring port is formed on the sealing cover body, a first sliding groove for slidably accommodating the first baffle and a second sliding groove for slidably accommodating the second baffle are formed on an inner wall of the boss facing the temperature measuring port, a notch for the first baffle and the second baffle to pass through is formed at one end of the first sliding groove and one end of the second sliding groove, and the other end of the first sliding groove and the other end of the second sliding groove are closed.

Optionally, a movable cover for closing the notch is further disposed on the boss, one side of the movable cover is hinged to the first side wall of the boss through a connecting mechanism, the other side of the movable cover is fixed to the second side wall of the boss through a locking mechanism, the first sliding groove is formed in the first side wall and the second side wall and is opened in an opposite direction, and the second sliding groove is formed in the first side wall and the second side wall and is opened in an opposite direction.

Optionally, the connecting mechanism includes a connecting shaft vertically fixed on the outer surface of the sealing cover body, and a sleeve formed on the one side of the movable cover, the connecting shaft is rotatably sleeved in the sleeve, and a stopper is further connected to an end of the connecting shaft.

Optionally, a mounting plate is formed on the other side of the movable cover, the locking mechanism includes a locking member rotatably connected to the mounting plate, a positioning block is formed on the second side wall of the boss, the locking mechanism includes a locking position and an unlocking position, the locking member rotates to the positioning block to lock when the locking mechanism is in the locking position, and the locking member is separated from the positioning block and rotates out when the locking mechanism is in the unlocking position.

Optionally, the locking member is formed into an L-shaped structure, the L-shaped structure includes a vertical plate perpendicular to the mounting plate and a horizontal plate connected to the vertical plate, an end of the vertical plate is hinged to the mounting plate, and an abutting member for abutting against the positioning block is detachably mounted on the horizontal plate.

Optionally, the first baffle is a quartz glass plate, and the second baffle is a stainless steel plate.

According to a second aspect of the present disclosure, there is provided a muffle comprising the muffle sealing cover described above, wherein the sealing cover body is formed with a plurality of fastening holes for fastening members for connecting the sealing cover body to the muffle to pass through.

According to a third aspect of the present disclosure, there is also provided a tool for operating the muffle sealing cover, the tool comprising a connecting member for detachably connecting the first baffle plate and/or the second baffle plate, and an operating member for driving the connecting member to move, wherein the connecting member is connected with the operating member.

Optionally, the tool comprises a reel which can rotate freely and is wound with a lifting rope, and a lifting hook connected to the free end of the lifting rope, wherein the reel is formed as the operating piece, the lifting hook is formed as the connecting piece, and through holes for the lifting hook to pass through are formed in the first baffle and the second baffle.

Optionally, one end of the reel is connected with a holding part for fixing the reel, and the other end of the reel is connected with a crank for winding and unwinding the lifting rope.

Through the technical scheme, the sealing cover can not only realize real-time monitoring on the temperature in the muffle furnace and the service condition of the heating element, more accurately control the temperature field in the muffle furnace, timely adjust the working parameters of the muffle furnace according to the service condition of the heating element, but also avoid the observation of the heating element in the muffle furnace, especially the volatile substance generated by the silicon carbide rod on the condition in the furnace, and greatly improve the working efficiency.

Additional features and advantages of the disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure, but do not constitute a limitation of the disclosure. In the drawings:

FIG. 1 is a schematic structural view of a muffle provided by the present disclosure;

FIG. 2 is a schematic view of a muffle seal cover provided by the present disclosure in normal use;

FIG. 3 is a schematic view of a muffle sealing cover from another perspective provided by the present disclosure;

FIG. 4 is a schematic view of the structure of a tool for operating a muffle seal cover provided by the present disclosure;

FIG. 5 is a schematic view of a removable cover on a muffle sealing cover provided by the present disclosure.

Description of the reference numerals

1 muffle furnace 2 heating element

3 temperature measuring port of sealing cover body 31

32 boss 321 first side wall

322 second side wall 323 gap

324 first runner 325 second runner

3221 positioning block 4 first baffle

41 through hole 5 tool

51 lifting rope 52 reel

53 hook 54 grip

55 crank 6 movable cover

61 mounting plate 71 stop

72 Sleeve 81 vertical plate

82 horizontal plate 83 butting piece

Detailed Description

The following detailed description of the embodiments of the disclosure refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.

In the present disclosure, unless otherwise specified, the use of directional words such as "upper and lower" generally means defined in the state of normal use of the muffle seal cover provided in the present disclosure, and "inner and outer" means inner and outer of the respective component profiles.

In the production process of the glass substrate, the muffle furnace is taken as important forming equipment, as shown in fig. 1 and fig. 2, a heating element 2 used for heating an overflow brick is arranged in the muffle furnace 1, in order to accurately measure the temperature in the muffle furnace and observe the use condition of the heating element in the muffle furnace in real time, the disclosure provides a muffle furnace sealing cover, the sealing cover comprises a sealing cover body 3 which can detachably seal the muffle furnace, a temperature measuring port 31 communicated with the outside is formed on the sealing cover body 3, and a transparent first baffle 4 covers the temperature measuring port 31 in a sliding and opening manner, so that a temperature measuring instrument can accurately measure the heating temperature in the muffle furnace through the first baffle 4, and a camera can be used for taking pictures of the use condition of the heating element and accurately judge the use condition of the heating element according to image information and temperature data. Wherein, in this embodiment, heating element 2 can be the elema, and the calorific value of elema is high, can give off the high temperature more than 1000 ℃ at most, can guarantee heating efficiency, but, in the heating process of carbon silicon rod, can produce black volatile layer and adhere to on first baffle 4, make the light transmissivity and the infrared performance of passing through of first baffle 4 reduce, influence the measurement to the temperature in the muffle furnace and the observation of heating element in service behavior.

Thus, as shown in fig. 2, in the embodiment of the present disclosure, the temperature measuring port 31 is covered with a transparent first baffle 4 and a second baffle for blocking the volatile matter of the heating element 2, especially a silicon carbide rod, from adhering to the first baffle 4, respectively, slidably openably, and the muffle sealing cover has a first working position in which the first baffle 4 and the second baffle both cover the temperature measuring port 31 and a second working position in which the second baffle is moved away from the temperature measuring port 31 so that the temperature measuring instrument can measure the temperature inside the muffle through the first baffle 4.

Through the technical scheme, the sealing cover can not only realize real-time monitoring on the temperature in the muffle furnace and the service condition of the heating element, more accurately control the temperature field in the muffle furnace, can timely adjust the working parameters of the muffle furnace according to the service condition of the heating element, but also avoid the observation of the heating element in the muffle furnace, especially the influence of volatile substances generated by the silicon carbide rod on the condition in the furnace, and greatly improve the working efficiency.

In the embodiment of the present disclosure, as shown in fig. 2 and 3, a boss 32 extending around the temperature measuring port 31 is formed on the sealing cover body 3, in the present embodiment, the boss 32 may have a rectangular structure, a first sliding groove 324 for slidably accommodating the first baffle 4 and a second sliding groove 325 for slidably accommodating the second baffle are formed on an inner wall of the boss 32 facing the temperature measuring port 31, and one end of the first sliding groove 324 and one end of the second sliding groove 325 are formed with a notch 323 for the first baffle 4 and the second baffle to pass through, and the other end is closed. Like this, first baffle 4 and second baffle can open or close temperature measurement mouth 31 along first spout and second spout drawability respectively, can enough avoid the volatile substances to adhere to on first baffle 4, influence the measurement to heating temperature in the muffle furnace, can prevent simultaneously that the heat from scattering and disappearing, guarantee the thermal insulation performance to the heating element in the muffle furnace.

Specifically, in the present embodiment, the interval between the second sliding groove 325 and the sealing cover body 3 may be 5mm thick, the interlayer between the first sliding groove 324 and the second sliding groove 325 may be 5mm thick, and the outer cladding of the first sliding groove 324 may be 6mm thick, so that the high temperature resistance and deformation resistance of the first sliding groove 324 and the second sliding groove 325 can be ensured, and the viewing angle of the temperature measuring port 31 is not affected. In addition, in order to be convenient for the operating personnel to hold, four angles of second baffle all can carry out round chamfer and handle.

Further, in the embodiment of the present disclosure, in order to prevent heat in the muffle from being dissipated from the notch 323 on the boss 32 and further ensure the heat preservation effect on the muffle, a movable cover 6 for closing the notch 323 is further disposed on the boss 32, one side of the movable cover 6 is hinged to the first side wall 321 of the boss 32 through a connecting mechanism, the other side of the movable cover 6 is fixed to the second side wall 322 of the boss 32 through a locking mechanism, the first sliding groove 324 is formed on the first side wall 321 and the second side wall 322 and is opened in an opposite direction, and the second sliding groove 325 is formed on the first side wall 321 and the second side wall 322 and is opened in an opposite direction. Thus, when the locking mechanism is opened, the notch 323 can be opened by the movable cover 6, the second baffle plate can be pulled out of the notch 323, and the temperature in the muffle furnace 1 can be measured; after the measurement is finished, the second baffle is pushed back along the second sliding groove 325, the movable cover 6 is rotated to the notch 323, and the locking mechanism is closed, so that the heat preservation of the muffle furnace can be realized.

Wherein, in the embodiment of the present disclosure, the connection mechanism includes a connection shaft vertically fixed on the outer surface of the sealing cover body 3, and a sleeve 72 formed on one side of the movable cover 6, the connection shaft is rotatably sleeved in the sleeve 72, and the end of the connection shaft is further connected with a stop piece 71, in the embodiment, the stop piece 71 may be a nut. The other side of the movable cover 6 is formed with a mounting plate 61, the locking mechanism includes a locking member rotatably connected to the mounting plate 61, a positioning block 3221 is formed on the second sidewall 322 of the boss, and the locking mechanism includes a locking position in which the locking member is rotated to the positioning block 3221 for locking, and an unlocking position in which the locking member is disengaged from the positioning block 3221 and rotated out. Thus, the flap 6 is rotatably connected to the muffle sealing cover body to open or close the gap 323 as desired.

Specifically, as shown in fig. 5, the locking member may be formed in an L-shaped structure including a vertical plate 81 perpendicular to the mounting plate 61 and a horizontal plate 82 connected to the vertical plate 81, an end of the vertical plate 81 is hinged to the mounting plate 61, and an abutting member 83 for abutting against the positioning block 3221 is detachably mounted on the horizontal plate 82. In this embodiment, the abutting member 83 may be a bolt, and in other embodiments, the abutting member 83 may also be an annular structure formed on the horizontal plate 82 and capable of being sleeved on the positioning block 3221. After the temperature in the muffle furnace is measured, the second baffle plate is pushed back along the second chute, a small amount of glass fiber cotton can be placed on the top ends of the first baffle plate 4 and the second baffle plate, the heat preservation effect is further ensured, however, due to the obstruction of the glass fiber cotton, an unmatched gap can be left between the movable cover 6 and the notch 323, the abutting part 83 is screwed down through the locking part, the abutting part 83 abuts against the positioning block 3221 until the gap is eliminated, and heat loss at the notch 323 and the chute is further avoided.

In the embodiment of the present disclosure, the first baffle 4 may be a quartz glass plate, and the second baffle may be a stainless steel plate, because the quartz glass plate is high temperature resistant and has good light transmittance and infrared ray transmittance characteristics, the accuracy of the temperature measuring instrument on the temperature measurement in the muffle furnace can be ensured, the stainless steel plate not only has good heat preservation effect, but also is not easy to damage in the drawing process of the second baffle.

According to a second aspect of the present disclosure, there is provided a muffle comprising the above-mentioned muffle sealing cover, the sealing cover body 3 being formed with a plurality of fastening holes 33 for fastening members connected to the muffle to pass through. Here, the number of the fastening holes 33 may be 6, which are spaced along opposite edges of the sealing cover body, and in other embodiments, the number of the fastening holes may be increased appropriately, so as to further ensure the sealing performance between the sealing cover and the furnace body.

According to a third aspect of the present disclosure, there is also provided a tool for operating the muffle sealing cover, comprising a connecting member for detachably connecting the first baffle 4 and/or the second baffle, and an operating member for driving the connecting member to move, wherein the connecting member is connected with the operating member. The connecting piece can be connected on first baffle or second baffle, also can connect first baffle 4 and second baffle simultaneously, like this, through the pull of this instrument alright realization first baffle 4 and second baffle, convenient laborsaving more.

Since the muffle is at the top of the forming mechanism and the space available above the sealing cover is limited, in the embodiment of the disclosure, the tool 5 comprises a reel 52 which is freely rotatable and around which the lifting rope 51 is wound, and a hook 53 which is connected to the free end of the lifting rope 51, the reel 52 can be formed as the operating member, the hook 53 can be formed as the connecting member, and the first flap 4 and the second flap each have a through hole 41 through which the hook 53 passes. In this embodiment, one end of the wire wheel 52 is connected with a holding part 54 for fixing the wire wheel, the other end of the wire wheel is connected with a crank 55 for winding and unwinding the lifting rope 51, the holding part 54 is held by the left hand of an operator, the winding and unwinding of the lifting rope 51 can be realized by rotating the crank 55 by the right hand, and then the lifting of the first baffle 4 and the second baffle are controlled, so that the measurement of the temperature in the muffle furnace and the replacement of the first baffle 4 are completed, and time and labor are saved. In other embodiments, the rotation of the pulley may also be driven electrically, which is not limited herein. In the present embodiment, the rotation shaft of the pulley 52 is formed with a U-shaped groove, and the lifting rope 51 is gathered toward the center during the winding and unwinding of the lifting rope 51, so that the first damper 4 or the second damper can be prevented from being shaken due to the deviation of the lifting rope.

The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

It should be noted that, in the above embodiments, the various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations will not be further described in the present disclosure.

In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.

Claims (9)

1. A muffle furnace sealing cover is characterized in that a heating element (2) is arranged in a muffle furnace (1), the muffle sealing cover comprises a sealing cover body (3) which can detachably close the muffle, it is characterized in that a temperature measuring port (31) communicated with the outside is formed on the sealing cover body (3), the temperature measuring port (31) is respectively covered with a transparent first baffle (4) and a second baffle for preventing volatile matters of the heating element (2) from adhering to the first baffle (4) in a sliding and opening manner, the muffle sealing cover is provided with a first working position and a second working position, in the first working position, the first baffle (4) and the second baffle cover the temperature measuring port (31), in the second working position, the second baffle moves away from the temperature measuring port (31) so that a temperature measuring instrument can measure the temperature in the muffle through the first baffle (4);

a boss (32) extending around the temperature measuring port (31) is formed on the sealing cover body (3), a first sliding groove (324) used for slidably accommodating the first baffle plate (4) and a second sliding groove (325) used for slidably accommodating the second baffle plate are formed on the inner wall of the boss (32) facing the temperature measuring port (31), a notch (323) for the first baffle plate (4) and the second baffle plate to pass through is formed at one end of the first sliding groove (324) and one end of the second sliding groove (325), and the other end of the first sliding groove and the other end of the second sliding groove are closed;

the first baffle (4) is a quartz glass plate, and the second baffle is a stainless steel plate.

2. Muffle sealing cover according to claim 1, characterized in that a movable cover (6) for closing the gap (323) is further arranged on the boss (32), one side of the movable cover (6) is hinged to a first side wall (321) of the boss (32) by a connecting mechanism, the other side is fixed to a second side wall (322) of the boss (32) by a locking mechanism, the first runner (324) is formed on the first side wall (321) and the second side wall (322) and is open in opposite directions, and the second runner (325) is formed on the first side wall (321) and the second side wall (322) and is open in opposite directions.

3. Muffle seal cover according to claim 2, characterized in that the connection mechanism comprises a connection shaft fixed perpendicular to the outer surface of the seal cover body, and a sleeve (72) formed at the side of the movable cover, the connection shaft is rotatably sleeved in the sleeve (72), and a stop (71) is connected to the end of the connection shaft.

4. The muffle seal cover according to claim 2, wherein the other side of the movable cover (6) is formed with a mounting plate (61), the locking mechanism comprises a locking member rotatably connected to the mounting plate (61), the second side wall (322) of the boss is formed with a positioning block (3221), the locking mechanism comprises a locking position in which the locking member is rotated to the positioning block (3221) for locking, and an unlocking position in which the locking member is disengaged from and rotated out of the positioning block (3221).

5. Muffle sealing cover according to claim 4, characterized in that the locking member is formed as an L-shaped structure comprising a vertical plate (81) perpendicular to the mounting plate (61) and a horizontal plate (82) connected to the vertical plate (81), the end of the vertical plate (81) is hinged to the mounting plate (61), and an abutting member (83) for abutting against the positioning block (3221) is detachably mounted on the horizontal plate (82).

6. Muffle, characterized in that it comprises a muffle sealing cover according to any of claims 1-5, the sealing cover body (3) having a plurality of fastening holes (33) formed therein for the passage of fasteners for connecting the sealing cover body (3) to the muffle.

7. Tool for operating the muffle sealing cover according to any of claims 1-5, characterized in that it comprises a connecting piece for detachably connecting the first shutter (4) and/or the second shutter, and an operating piece for actuating the connecting piece, the connecting piece being connected to the operating piece.

8. Tool according to claim 7, characterized in that the tool (5) comprises a reel (52) freely rotatable and wound with a hoisting rope (51), and a hook (53) connected to the free end of the hoisting rope (51), the reel (52) being formed as the operating member, the hook (53) being formed as the connecting member, the first flap (4) and the second flap each being formed with a through hole (41) through which the hook (53) passes.

9. The tool according to claim 8, characterized in that a holding part (54) for fixing the reel is connected to one end of the reel (52), and a crank (55) for winding and unwinding the lifting rope (51) is connected to the other end of the reel.

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