阅读说明：本技术 一种双孔或多孔石英管连熔炉 (Double-hole or multi-hole quartz tube continuous melting furnace ) 是由 纪高仁 于 2020-09-07 设计创作，主要内容包括：一种双孔或多孔石英管连熔炉涉及石英管生产设备领域。主要是为解决现有的石英管连熔炉只能生产单孔石英管,无法满足市场需要的问题而设计的。它包括炉体,炉体内壁上有耐火保温材料,炉体底部有产品出口,炉体顶部设有炉盖,钨坩埚设在炉体内,钨坩埚上端连接在炉体上,钨坩埚的下端安装有外成型器,外成型器中部有出料孔,钨坩埚外面有加热器,加热电极从炉体伸出,加料管伸入到钨坩埚内,炉内保护气体进气管伸入到炉体内,芯杆与炉盖螺纹连接,芯杆伸入到钨坩埚内,芯杆内有两个或多个芯杆通气孔,芯杆下端有内成型器,芯杆通气孔的顶端连接有进气管；内成型器上有通气孔。优点是可生产出两孔或多孔的石英管,以满足不同用户的需要。(A double-hole or multi-hole quartz tube continuous melting furnace relates to the field of quartz tube production equipment. The quartz tube continuous melting furnace is designed for mainly solving the problem that the existing quartz tube continuous melting furnace can only produce a single-hole quartz tube and can not meet the market requirement. The furnace comprises a furnace body, wherein a refractory heat-insulating material is arranged on the inner wall of the furnace body, a product outlet is arranged at the bottom of the furnace body, a furnace cover is arranged at the top of the furnace body, a tungsten crucible is arranged in the furnace body, the upper end of the tungsten crucible is connected to the furnace body, an outer former is arranged at the lower end of the tungsten crucible, a discharge hole is formed in the middle of the outer former, a heater is arranged outside the tungsten crucible, a heating electrode extends out of the furnace body, a feeding pipe extends into the tungsten crucible, a protective gas inlet pipe in the furnace extends into the furnace body, a core rod is in threaded connection with the furnace cover, the core rod extends into the tungsten crucible, two or more core rod vent holes are formed in the core; the inner former is provided with a vent hole. The advantage is that two or more holes of quartz tube can be produced to meet the needs of different users.)

1. A double-hole or multi-hole quartz tube continuous smelting furnace comprises a furnace body (1), wherein a fireproof heat-insulating material (2) is arranged on the inner wall of the furnace body, a product outlet (3) is formed in the bottom of the furnace body, a furnace cover (4) is arranged at the top of the furnace body, a tungsten crucible (5) is arranged in the furnace body, the upper end of the tungsten crucible is connected to the furnace body, an outer former (6) is arranged at the lower end of the tungsten crucible, a discharge hole (7) is formed in the middle of the outer former, the discharge hole is positioned right above the product outlet, a heater (8) is arranged outside the tungsten crucible, a heating electrode (15) connected with the heater extends out of the furnace body, a feeding pipe (9) extends into the tungsten crucible from the furnace cover, a protective gas inlet pipe (10) in the furnace extends out;

core bar mounting flange and nut are installed to the bell upper end, nut threaded connection on the upper end of core bar (11) and the bell, and the core bar stretches into in the tungsten crucible, characterized by: two or more axial core bar vent holes (12) are arranged in the core bar, inner formers (13) with the same number as the core bar vent holes are fixed at the lower end of the core bar, gaps are reserved among the formers, the top end of each core bar vent hole is connected with an air inlet pipe (14), and a valve is arranged on the air inlet pipe; the inner former is provided with a vent hole communicated with the vent hole of the core rod.

2. The double-hole or multi-hole quartz tube continuous melting furnace as set forth in claim 1, wherein: the transverse section of the inner former can be designed into various shapes according to the requirements of products.

3. The double-hole or multi-hole quartz tube continuous melting furnace as set forth in claim 1, wherein: the transverse section of the core rod can be according to the production and processing requirements.

4. The double-hole or porous quartz tube continuous melting furnace as set forth in claim 1 or 2, wherein: the core rod can be of an integral structure or formed by connecting and fixing a plurality of split bodies, when the core rod is of a split structure, each split body is provided with an axial core rod vent hole, and the lower end of each split body is connected with an inner former.

5. A twin or multi-hole quartz tube continuous melting furnace as defined in claim 3, wherein: the core rod can be of an integral structure or formed by connecting and fixing a plurality of split bodies, when the core rod is of a split structure, each split body is provided with an axial core rod vent hole, and the lower end of each split body is connected with an inner former.

6. The double-hole or porous quartz tube continuous melting furnace as set forth in claim 1 or 2, wherein: a fixed platform (16) is fixed on the outer side of the furnace body.

7. A twin or multi-hole quartz tube continuous melting furnace as defined in claim 3, wherein: a fixed platform (16) is fixed on the outer side of the furnace body.

8. The twin or porous quartz tube continuous melting furnace as set forth in claim 4, wherein: a fixed platform (16) is fixed on the outer side of the furnace body.

The technical field is as follows:

the invention relates to the field of quartz tube production equipment, in particular to a continuous melting device for quartz tube production.

Background art:

the quartz tube is a special industrial technology quartz product made of silicon dioxide, is a very good basic material, and is widely applied to various fields, particularly the photovoltaic field and the medical sterilization field.

The existing quartz tube continuous melting furnace adopts a single-hole core rod, and an inner hole former (core head) is arranged at the lower end part of the single-hole core rod, so that only a single-hole quartz tube can be produced, and the increasingly developed market requirements cannot be met.

The invention content is as follows:

the invention aims to solve the technical problem of providing a double-hole or multi-hole quartz tube continuous melting furnace which can produce double-hole or multi-hole quartz tubes so as to meet the market requirements.

The above object is achieved by: it includes the furnace body, be equipped with fire-resistant insulation material on the furnace body inner wall, the furnace body bottom is equipped with the product outlet, the furnace body top is equipped with the bell, the tungsten crucible is established in the furnace body, tungsten crucible upper end is connected on the furnace body, outer former (ejection of compact platform) is installed to the lower extreme of tungsten crucible, there is the discharge opening at outer former middle part, the discharge opening is located the product outlet directly over, the heater is installed to tungsten crucible outside, heater connection's heating electrode stretches out from the furnace body, the filling tube stretches into in the tungsten crucible from the bell, protective gas intake pipe is in the furnace body that the furnace body stretches into the tungsten crucible outside outward, install the valve of admitting air in the furnace on.

The upper end of the furnace cover is provided with a core rod fixing flange and a nut, the upper end of the core rod is in threaded connection with the nut on the furnace cover, the core rod extends into the tungsten crucible, two or more axial core rod vent holes are arranged in the core rod, the lower end of the core rod is fixedly provided with inner formers (core heads) with the same number as the core rod vent holes, gaps are reserved among the formers, the top end of each core rod vent hole is connected with an air inlet pipe, and a valve is arranged on the air inlet pipe; the inner former is provided with a vent hole communicated with the vent hole of the core rod.

The transverse section of the inner former can be designed into various shapes according to the requirements of products.

The transverse section of the core rod can be designed into various shapes according to the production and processing requirements.

The core rod can be of an integral structure or formed by connecting and fixing a plurality of split bodies, when the core rod is of a split structure, each split body is provided with an axial core rod vent hole, and the lower end of each split body is connected with an inner former.

The outer side of the furnace body is fixed with a fixed platform.

The invention has the advantages that: because two or more core rod vent holes are arranged in the core rod, and an inner former with an air hole is arranged below each core rod vent hole, a quartz tube with two or more holes can be produced, and a quartz product can be produced according to the required product shape and the inner diameter shape so as to meet the requirements of different users.

Description of the drawings:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic cross-sectional view of a unitary core rod with four core rod vents of the present invention;

FIG. 3 is a cross-sectional view of a split core pin with four core pin vents in accordance with the present invention.

The specific implementation mode is as follows:

the invention is further described below in connection with fig. 1-3;

it includes furnace body 1, be equipped with refractory insulation material 2 on the furnace body inner wall, the furnace body bottom is equipped with product outlet 3, the furnace body top is equipped with bell 4, tungsten crucible 5 is established in the furnace body, tungsten crucible upper end is connected on the furnace body, outer former 6 (ejection of compact platform) is installed to the lower extreme of tungsten crucible, there is discharge opening 7 at outer former middle part, the discharge opening is located product outlet directly over, heater 8 is installed to tungsten crucible outside, heater connection's heating electrode 15 stretches out from the furnace body, the filling tube 9 stretches into in the tungsten crucible from the bell, protective gas intake pipe 10 in the stove stretches into in the furnace body outside the tungsten crucible from the furnace body, install air inlet valve in the stove on the protective gas intake pipe.

A core rod fixing flange and a nut are mounted at the upper end of the furnace cover, the upper end of a core rod 11 is in threaded connection with the nut on the furnace cover, the core rod extends into the tungsten crucible, two or more axial core rod vent holes 12 are formed in the core rod, inner formers 13 (core heads) with the same number as the core rod vent holes are fixed at the lower end of the core rod, gaps are reserved among the formers, the top end of each core rod vent hole is connected with an air inlet pipe 14, and a valve is mounted on the air inlet pipe; the inner former is provided with a vent hole communicated with the vent hole of the core rod.

The transverse section of the inner former can be designed into various shapes according to the product requirement, such as a circle, a rectangle, a diamond and the like.

The transverse section of the core rod can be designed into various shapes, such as a circle, a rectangle, a rhombus and the like according to the production and processing requirements.

The core rod can be of an integral structure or formed by connecting and fixing a plurality of split bodies, when the core rod is of a split structure, each split body is provided with an axial core rod vent hole, and the lower end of each split body is connected with an inner former.

A fixed platform 16 is fixed outside the furnace body.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.