CN216946730U - Continuous electric melting quartz furnace with multiple discharge ports - Google Patents

Abstract

The utility model provides a multi-discharge-port continuous electric melting quartz furnace, which comprises a furnace cover, a furnace body, a crucible, a heating device and a traction device, wherein the furnace cover is arranged on the furnace body; the furnace cover is arranged at the top of the furnace body, and is provided with a feeding device for adding a quartz raw material; the crucible is arranged in the furnace body, and more than 2 discharge ports are formed in the bottom of the crucible; the heating device is arranged between the furnace body and the crucible; the traction device is positioned below the furnace body, and a plurality of groups of traction devices are arranged corresponding to the discharge holes and used for drawing the formed quartz tube/rod and pulling out the quartz tube/rod at a constant speed. This electric smelting quartz capsule through setting up the discharge gate of different specifications, realizes multiple product of coproduction, on the basis that improves its product production flexibility, has further increased draw gear's setting to promote the production efficiency of quartz capsule/stick, reduced the manufacturing of smelting pot, installation and the cost of igniteing.

Description

Continuous electric melting quartz furnace with multiple discharge ports

Technical Field

The utility model relates to the field of quartz manufacturing production, in particular to a multi-discharging-port continuous electric melting quartz furnace.

Background

The existing quartz tube rod continuous melting furnace only has one discharge port for blanking (see fig. 2 and fig. 3), one continuous melting furnace can only realize the production of a single product in real time, if a plurality of products are produced at the same time, only redesign and installation of other melting furnaces for ignition production can be carried out, and the installation and ignition costs of the continuous melting furnace are high; meanwhile, because only one set of forming device is arranged in one continuous melting furnace, the quartz tube or rod can meet the flow rate due to the fact that the forming speed is high and no corresponding traction device is arranged, the yield can only reach 60% of the actual yield of the melting furnace, and therefore the production efficiency of the quartz tube and rod is extremely low and the flexibility of production specifications is poor.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems, the utility model provides the multi-discharge-port continuous electric melting quartz furnace, which realizes the simultaneous production of various products by arranging discharge ports with different specifications, increases the arrangement of a traction device on the basis of improving the production flexibility of the products, improves the production efficiency of quartz tube rods, and reduces the manufacturing, installation and ignition costs of a melting furnace.

According to an embodiment of the present disclosure, there is provided a multi-discharge-port continuous electric melting quartz furnace, including: the furnace comprises a furnace cover, a furnace body, a crucible, a heating device and a traction device; wherein,

the furnace cover is arranged at the top of the furnace body, and is provided with a feeding device for adding a quartz raw material;

the crucible is arranged in the furnace body, and more than 2 discharge ports are formed in the bottom of the crucible;

the heating device is arranged between the furnace body and the crucible;

the traction device is positioned below the furnace body, and a plurality of groups of traction devices are arranged corresponding to the discharge holes and used for drawing the formed quartz tube/rod and pulling out the quartz tube/rod at a constant speed.

Further, the quartz furnace also comprises a core rod; the core rod is arranged in the crucible, the upper end of the core rod extends out of the furnace cover, and the lower end of the core rod is connected with a fixedly connected or detached former.

Further, the core rods and the discharge holes are arranged in a one-to-one correspondence mode to produce the quartz tubes/rods.

Further, the core rod is in a hollow tubular shape, and the upper end of the core rod is connected with a ventilation device and used for conveying gas to the former.

Further, the former is positioned inside the discharge hole and concentrically arranged; and a forming discharge port is formed in a gap between the former and the discharge port.

Further, the furnace cover is provided with a core bar through hole, an offset adjusting device and a core bar fixing device; wherein,

the core rod through holes are arranged in one-to-one correspondence with the core rods and accommodate the core rods;

the deviation adjusting device is connected with the core rod and is used for driving and adjusting the position of the former connected with the bottom of the core rod in the discharge port;

the core bar fixing device is used for fixing the core bar.

Further, the heating device comprises an insulating layer and a heater; the heat insulation layer is arranged between the crucible and the furnace body; the heater is arranged between the crucible and the heat insulation layer.

Further, the pulling device is used for pulling out the quartz tube/rod horizontally and/or vertically.

Further, the quartz furnace also comprises a cooling device; and the cooling device is positioned below the discharge hole and used for cooling and shaping the quartz tube/rod.

According to the continuous electric melting quartz furnace with the multiple discharge ports, when quartz tubes are produced in operation, the furnace body is fixed by the furnace body support; starting a heating device to preheat the quartz furnace; adjusting the bottom former of the core rod through an offset adjusting device, and fixing the former at the central position of the discharge port by using a core rod fixing device; opening a ventilation device at the upper end of the core rod for ventilation; adding a quartz raw material into a crucible through a feeding port on a furnace cover for melting; the fused quartz material flows out through the annular discharge hole, the annular quartz tube keeps a tubular shape under the action of gas, and the quartz tube is cooled and shaped after passing through a cooling device at the furnace mouth and is drawn by a traction device below the furnace body to form the quartz tube.

When the quartz rod is produced, the process is basically the same as the process for producing the quartz tube, and the difference is that: when the quartz furnace is provided with a core rod and a series of forming components thereof: during production, the ventilation device is closed, and the bottom former of the core rod has no gas action, so that the fused quartz material flowing out of the annular discharge hole can be converged together under the action of the viscosity of the fused quartz material to form a quartz tube; secondly, when the quartz furnace does not have a core rod and a series of forming components thereof: the fused quartz material flows out from the discharge port of the non-forming device to form the quartz rod.

The quartz furnace can be used for producing a plurality of quartz tubes and a plurality of quartz rods according to production requirements, and can also be used for producing a plurality of quartz tubes and quartz rods simultaneously in a combined manner. When the combined production is carried out, only the discharge hole at the bottom of the crucible needs to be replaced by the combined discharge hole, and the corresponding core rod and the corresponding former are correspondingly arranged or cancelled.

Compared with the prior art, the utility model has the following advantages: according to the products for producing the quartz tube and the rod and the size of the smelting furnace, the number of the discharge ports, the formers and the corresponding traction devices with corresponding specifications are designed, and due to the design of multiple discharge ports, one smelting furnace can simultaneously produce tubes or rods with multiple specifications and can also simultaneously produce the quartz tube and the quartz tube rod, so that the smelting furnace has wide production specification range and strong applicability; due to the design of the multiple groups of matched traction devices, the yield of drawn products is not limited by the drawing speed, and the efficiency of the smelting furnace is greatly improved.

It should be understood that what is described in this summary section is not intended to limit key or critical features of the embodiments of the disclosure, nor is it intended to limit the scope of the disclosure. Other features of the present disclosure will become apparent from the following description.

Drawings

The above and other features, advantages and aspects of various embodiments of the present disclosure will become more apparent by referring to the following detailed description when taken in conjunction with the accompanying drawings. In the drawings, like or similar reference characters designate like or similar elements, and wherein:

FIG. 1 is a schematic structural view of a multi-discharge-port continuous electrofusion quartz furnace according to the present invention;

FIG. 2 is a schematic structural view of a conventional single-discharge-port continuous electrofusion quartz furnace;

FIG. 3 is a schematic view of a single discharge hole structure of the quartz furnace provided in FIG. 2;

FIG. 4 is a schematic diagram of a double discharge hole structure of a quartz tube/rod produced by the quartz furnace in FIG. 1;

FIG. 5 is a schematic diagram of a three-outlet structure of a quartz tube/rod produced by the quartz furnace in FIG. 1;

FIG. 6 is a schematic view of a multi-discharge port structure of the quartz furnace of FIG. 1 for producing quartz rods;

FIG. 7 is a schematic view of a combined discharge hole of a quartz tube and a quartz rod produced by the quartz furnace in FIG. 1.

Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 7 is:

1 furnace cover, 2 furnace bodies, 3 crucibles, 4 core rods, 41 formers, 5 discharge holes, 6 cooling devices, 7 traction devices, 7-1 vertical traction devices, 7-2 horizontal traction devices, 8 deviation adjusting devices, 9 electrodes, 10 heaters, 11 high-temperature bricks, 12 heat-preservation sands and 13 furnace body supports.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be described clearly and completely with reference to the drawings in the embodiments of the present disclosure, and it is obvious that the described embodiments are some, but not all embodiments of the present disclosure. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.

In addition, the term "and/or" herein is only one kind of association relationship describing an associated object, and means that there may be three kinds of relationships, for example, a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

The utility model provides a multi-discharge-port continuous electric melting quartz furnace, which realizes the simultaneous production of various products by arranging discharge ports with different specifications, increases the arrangement of a traction device on the basis of improving the production flexibility of the products, improves the production efficiency of quartz tube rods, and reduces the manufacturing, mounting and ignition costs of a melting furnace.

According to an embodiment of the present disclosure, as shown in fig. 1, there is provided a multi-tap continuous electrofusion quartz furnace including: the furnace comprises a furnace cover 1, a furnace body 2, a crucible 3, a heating device and a traction device 7; wherein,

the furnace cover 1 is arranged at the top of the furnace body 2, and is provided with a feeding device for adding a quartz raw material;

the crucible 3 is arranged in the furnace body 2, and more than 2 discharge ports 5 are arranged at the bottom of the crucible 1;

the heating device is arranged between the furnace body 2 and the crucible 3;

the traction device 7 is positioned below the furnace body 2, and a plurality of groups of traction devices are arranged corresponding to the discharge port 5 and used for drawing the formed quartz tube/rod and pulling out the quartz tube/rod at a constant speed.

In the above embodiment, the quartz furnace further comprises a core rod 4; the core bar 4 is arranged in the crucible 3, the upper end of the core bar extends out of the furnace cover 1, and the lower end of the core bar is connected with a fixedly connected or detached former 41. The core rod and the former can be integrally formed, and can also be detachably connected through screws, buckles and the like.

In the above embodiment, the core rods 4 and the discharge holes 5 are arranged in a one-to-one correspondence to produce the quartz tubes/rods. When the quartz tube is produced, as shown in fig. 3 to 5, a core rod and a former are required to be arranged at a discharge port; when the quartz rod is produced, as shown in fig. 6, the core rod is not configured, and the quartz material directly flows out from the discharge hole to form a solid quartz rod; in the combined production of the quartz tube and the quartz rod, as shown in fig. 7, the number of the core rod and the former may be configured as required, which is designed to increase flexibility and reduce the number of igniting the furnace.

In the above embodiment, the core rod 4 is in a hollow tubular shape, and the upper end thereof is connected to a ventilation device for delivering gas to the former 41. When the gas is communicated, the quartz material flowing out of the forming discharge hole is kept by the force of the gas to form a hollow quartz tube; when the gas is not communicated, the quartz material flowing out of the forming discharge port can be converged to form a solid quartz rod due to the self-bonding characteristic. If only quartz rods are produced, it is not necessary to provide a core rod and a former, if conditions permit, as shown in FIG. 6.

In the above embodiment, the former 41 is located inside the discharge port 5, and is concentrically arranged; and a gap between the former 41 and the discharge port 5 forms a forming discharge port. The shape of the gap between the former and the discharge hole can be changed according to the shape of the quartz product, such as the gap with other shapes of quadrangle, ellipse, triangle, etc.

In the above embodiment, the furnace cover 1 is provided with a core bar through hole, an offset adjusting device 8 and a core bar fixing device; wherein,

the core rod through holes are arranged in one-to-one correspondence with the core rods 4 and accommodate the core rods 4;

the deviation adjusting device 8 is connected with the core rod 4 and is used for driving and adjusting the position of the former 41 connected with the bottom of the core rod in the discharge hole 5; the offset adjusting device can adjust the position of the core rod in multiple directions, thereby driving and adjusting the former at the bottom end of the core rod and solving the problem of offset of the quartz tube. Because the core rod can slightly move to cause the offset wall of the quartz tube due to various reasons in the production process, the offset adjusting device is finely adjusted, so that the former at the bottom end of the core rod is positioned in the center of the discharge hole.

The core bar fixing device is used for fixing the core bar 4; the relative positions of the core rod in the crucible and the former at the bottom of the crucible and the discharge hole are kept stable.

In the above embodiment, the heating means includes the insulating layer and the heater 10; the heat-insulating layer is arranged between the crucible 3 and the furnace body 2, and the heat-insulating layer can be set to be a high-temperature brick 11 and heat-insulating sand 12; the heater 10 is arranged between the crucible 2 and the heat-insulating layer, can adopt a heating net as a heater, and is connected with an external electrode 9 for heating; the external electrode 9 penetrates through the heat insulation layer in the furnace body and is connected with the heating net.

In the above described embodiments, the pulling device 7 is used for pulling out the quartz tube/rod horizontally and/or vertically. When the horizontal traction device 7-2 is adopted, a direction conversion device is required to be installed. The number of the traction devices can be set according to the number of the discharge holes in a one-to-one correspondence mode. The mode of the traction device such as the vertical traction device 7-1 and the horizontal traction device 7-2 can be designed individually or in combination according to the specification and the property of a specific product, so that the quality of the multi-specification quartz tube/rod is ensured.

In the above embodiment, the quartz furnace further includes a cooling device 6; and the cooling device 6 is positioned below the discharge port 5 and used for cooling and shaping the quartz tube/rod. The cooling device adopts equipment with suddenly low temperature to cool and shape the formed quartz tube/rod so as to prevent deformation and distortion in the traction process. The equipment with the temperature step can adopt water cooling equipment, air cooling equipment and the like, reduces the temperature of the furnace mouth while cooling and shaping the quartz tube/rod, and has the functions of protecting the furnace mouth and prolonging the service life.

According to the multi-discharging-port continuous electric melting quartz furnace provided by the embodiment of the utility model, when quartz tubes are produced in operation, the furnace body 2 is fixed by using the furnace body bracket 13; starting a heating device to preheat the quartz furnace; adjusting the former 41 at the bottom of the core rod 4 through an offset adjusting device 8, and fixing the former 41 at the central position of the discharge hole 5 by using a core rod fixing device; opening a ventilation device at the upper end of the core rod 4 for ventilation; adding a quartz raw material into a crucible 3 through a feeding port on a furnace cover 1 for melting; the fused quartz material flows out through the annular discharge hole, the annular quartz tube keeps a tubular shape under the action of gas, is cooled and shaped after passing through the cooling device 6 of the furnace mouth, and is drawn by the drawing device 7 below the furnace body to form the quartz tube.

When the quartz rod is produced, the process is basically the same as the process for producing the quartz tube, and the difference is that: when the quartz furnace has a core rod and a series of forming components thereof, as shown in fig. 3 to 5: during production, the ventilation device is closed, the former 41 at the bottom of the core rod 4 has no gas effect, so that the fused quartz material flowing out of the annular discharge hole can be converged together under the action of the viscosity of the fused quartz material to form a quartz tube; secondly, when the quartz furnace does not have a core rod and a series of forming components thereof, as shown in fig. 6: the fused quartz material flows out from the discharge port 5 without the former to form the quartz rod.

The quartz furnace can be used for producing a plurality of quartz tubes and a plurality of quartz rods according to production requirements, and can also be used for producing a plurality of quartz tubes and quartz rods simultaneously in a combined manner. When the crucible is produced in a combined mode, only the discharge hole at the bottom of the crucible needs to be replaced by the combined discharge hole, and the corresponding core rod and the corresponding former are correspondingly arranged or cancelled, as shown in fig. 7.

The specification production capacity of the quartz tube/rod of the quartz furnace and the prior quartz furnace technology is tested: see table 1.

Table 1: standard production capacity comparison table (unit: mm) of quartz tube/rod of the quartz furnace and the prior quartz furnace technology

As can be seen from Table 1, the quartz furnace of the utility model has wider specification production range, can carry out compatible production of various products, and avoids the problem that a plurality of quartz furnaces are needed to produce a plurality of specification products in the table 1 in the prior art, thereby greatly reducing the high cost of igniting the quartz furnace.

In the description of the present specification, the terms "connect", "mount", "fix", and the like are to be understood in a broad sense, for example, "connect" may be a fixed connection, a detachable connection, or an integral connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In the description of the present application, the description of the terms "one embodiment," "some embodiments," or the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (6)

1. A multi-discharge-port continuous electric melting quartz furnace is characterized by comprising a furnace cover, a furnace body, a crucible, a core rod, a heating device and a traction device; wherein,

the furnace cover is arranged at the top of the furnace body, and is provided with a feeding device for adding a quartz raw material;

the crucible is arranged in the furnace body, and more than 2 discharge ports are formed in the bottom of the crucible;

the core rod is hollow and tubular, is arranged in the crucible, the upper end of the core rod extends out of the furnace cover to be connected with the ventilating device, and the lower end of the core rod is connected with a fixedly connected or detached former; the core rod is used for conveying gas to the former; the former is positioned inside the discharge hole and concentrically arranged; a gap between the former and the discharge port forms a forming discharge port;

the heating device is arranged between the furnace body and the crucible;

the traction device is positioned below the furnace body and is provided with a plurality of groups corresponding to the discharge hole and used for drawing the formed quartz tube/rod and pulling out the quartz tube/rod at a constant speed.

2. The continuous electrofusion quartz furnace of claim 1, wherein the core rods and the discharge ports are arranged in one-to-one correspondence to produce the quartz tubes/rods.

3. The continuous electrofusion quartz furnace of claim 1, wherein the furnace lid is provided with a core rod through hole, an offset adjustment device, and a core rod fixing device; wherein,

the core rod through holes are arranged in one-to-one correspondence with the core rods and accommodate the core rods;

the deviation adjusting device is connected with the core rod and is used for driving and adjusting the position of the former connected with the bottom of the core rod in the discharge port;

the core bar fixing device is used for fixing the core bar.

4. The continuous electrofusion quartz furnace of claim 1, wherein the heating means comprises an insulating layer and a heater; the heat insulation layer is arranged between the crucible and the furnace body; the heater is arranged between the crucible and the heat insulation layer.

5. Continuous electrofusion quartz furnace according to claim 1, characterised in that said pulling means are used for pulling out said quartz tubes/rods horizontally and/or vertically.

6. The continuous electrofusion quartz furnace of claim 1, wherein the quartz furnace further comprises a cooling device; and the cooling device is positioned below the discharge hole and used for cooling and shaping the quartz tube/rod.

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