CN218359328U

CN218359328U - Crucible structure

Info

Publication number: CN218359328U
Application number: CN202222701145.7U
Authority: CN
Inventors: 张铸锋; 翟世博
Original assignee: China Silicon Shandong Silicon Aluminum New Material Co ltd
Current assignee: China Silicon Shandong Silicon Aluminum New Material Co ltd
Priority date: 2022-10-13
Filing date: 2022-10-13
Publication date: 2023-01-24
Anticipated expiration: 2032-10-13

Abstract

The utility model provides a crucible structure, which comprises a furnace body, a heating body, a crucible body and an air duct, wherein the furnace body, the heating body, the crucible body and the air duct are sleeved in sequence from outside to inside; impurity comes out and is taken away through the clearance between crucible cover and the middle air duct for the lower region of crucible body center heating is ventilated, effectively reduces the heat dissipation, and the graphite sleeve of crucible body outer wall can fully conduct heat simultaneously, improves vertical furnace heating efficiency, can improve the efficiency of diameter 800mm vertical furnace 20% like this, and the vertical furnace volume is less, and the proportion that efficiency improves is big more.

Description

Crucible structure

Technical Field

The utility model belongs to the technical field of crucible equipment, concretely relates to crucible structure.

Background

A certain amount of impurities can be separated out in the sintering or crystallization of the crucible, the impurities are taken away by inert gas through the gap between the crucible cover and the crucible body, for not influencing the heating body, a graphite sleeve is usually arranged between the crucible and the heating body to prevent the gas from leaking outwards, as shown in figure 2, a ventilation circuit is arranged between the sleeve and the crucible body, the impurity gas in the crucible body is discharged through the ventilation circuit, but the problem brought is that the effective space of the crucible is small, the sintering efficiency of the vertical furnace is low, how to avoid the reduction of the effective space of the crucible, and the improvement of the sintering efficiency of the vertical furnace is a difficult problem to solve.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problem, according to some embodiments, the utility model adopts the following technical scheme: the utility model provides a crucible structure, includes furnace body, heat-generating body, the crucible body and the air duct that the cover was established in proper order from the extroversion, and the outer wall of the crucible body is the graphite sleeve, and crucible body center sets up the air duct, and the impurity that produces passes through the air duct and discharges among the crucible body heating process.

Further, the gas guide pipe is a graphite pipe.

Furthermore, a through hole which is communicated up and down is formed in the center of the crucible body, and an air guide pipe is installed in the through hole.

Furthermore, a furnace cover is arranged at the top of the furnace body, and a furnace cover heat-insulating layer is arranged in the furnace cover.

Furthermore, an air inlet is formed in the center of the furnace cover, inert gas is introduced into the air inlet, and the air inlet is communicated with a through hole in the center of the crucible cover.

Furthermore, a set gap is formed between the crucible cover and the gas guide pipe.

Furthermore, the furnace body is of a cylindrical structure with an opening at the top, and a furnace cover is arranged at the opening.

Furthermore, the center of the bottom of the furnace body is provided with an air outlet which is communicated with the through hole at the bottom of the crucible.

Furthermore, a heat conduction layer is arranged between the heating body and the graphite sleeve.

Furthermore, a heat insulation layer is arranged in the furnace body.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model provides a crucible structure, regard the graphite sleeve as the outer wall of the crucible body, the graphite sleeve effect prevents on the gas evolution arrives the heat-generating body, in order to prevent corrosion or electric leakage, become the graphite sleeve telescopic outer wall, can not cause the gas evolution to arrive on the heat-generating body, crucible body center sets up the air duct, make the centre of the crucible body set up the circuit of ventilating, impurity comes out and is taken away through the clearance between crucible cover and the middle air duct, make the lower region of crucible body center being heated ventilate, effectively reduce the heat dissipation, the graphite sleeve of crucible body outer wall can fully conduct heat simultaneously, improve vertical furnace heating efficiency, can improve 20% with the efficiency of the vertical furnace of diameter 800mm like this, the vertical furnace volume is the less, the proportion that efficiency improves is the bigger.

Advantages of additional aspects of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

The accompanying drawings, which form a part of the specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to constitute a limitation on the invention.

FIG. 1 is a schematic structural view of a novel crucible of the first embodiment;

FIG. 2 is a front view of a crucible body according to the first embodiment;

FIG. 3 is a top view of a crucible body according to the first embodiment;

FIG. 4 is a front view of the crucible cover of the first embodiment;

FIG. 5 is a schematic view of a conventional crucible;

wherein: 1. a furnace cover heat-insulating layer; 2. a crucible cover; 3. a crucible body; 4. a heating element; 5. an air duct; 6. an air inlet; 7. an air outlet; 8. a furnace body; 101. a furnace top heat-insulating layer; 102. a cover body; 103. a crucible body; 104. a heat generating element; 105. a sleeve; 106. a furnace body heat-insulating layer; 107. an air inlet; 108. and an air outlet.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings and examples.

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The first embodiment is as follows:

as shown in FIG. 1, this embodiment provides a crucible structure, include furnace body 8 that the cover was established in proper order from the extroversion, the heat preservation, heat-generating body 4, the graphite sleeve, crucible body 3 and air duct 5, the graphite sleeve is as the outer wall of crucible body 3, the graphite sleeve effect prevents that the gas out to the heat-generating body 4 on, in order to prevent corrosion or electric leakage, the graphite sleeve has become crucible body 3's outer wall, can not cause the gas out to the heat-generating body 4 on, crucible body 3 center sets up air duct 5, the impurity that produces in the crucible body 3 heating process passes through air duct 5 and discharges.

As an implementation mode, the air duct 5 is a graphite tube, the air duct 5 is made of graphite materials, a through hole which is communicated up and down is formed in the center of the crucible body 3, the air duct 5 is installed in the through hole, and the air duct 5 is used for taking away impurity gas separated out from the graphite crucible body 3.

As an embodiment, the crucible cover 2 is installed on the top of the crucible body 3, the center of the crucible cover 2 is provided with a through hole, and the crucible cover 2 and the gas guide tube 5 have a set gap, so that the impurity gas can be discharged from the crucible body 3 into the gas guide tube 5 through the gap.

As an embodiment, a heat conducting layer is disposed between the heating element 4 and the graphite sleeve, and the heat conducting layer may be an air layer to prevent the heating element 4 from directly contacting the graphite sleeve to damage the outer wall of the graphite sleeve.

In one embodiment, the heating element 4 is a self-heating graphite tube, and both ends of the graphite tube are connected with electric slip rings and are electrified and heated by an electric electrode rod.

As an implementation mode, the top of the crucible is provided with a furnace cover, a furnace cover heat-insulating layer 1 is arranged in the furnace cover, and the heat-insulating layer is a cooked fly ash ceramsite heat-insulating layer.

In one embodiment, the center of the furnace cover is provided with an air inlet 6, inert gas is introduced into the air inlet 6, and the air inlet 6 is communicated with a through hole in the center of the crucible cover 2 so as to convey the inert gas into the air guide hole.

In one embodiment, the center of the bottom of the furnace body 8 is provided with a gas outlet 7, and the gas outlet 7 is communicated with the through hole at the bottom of the crucible so as to discharge the inert gas in the gas guide hole.

In one embodiment, the furnace body 8 is a cylindrical structure with an open top, and a furnace cover is arranged at the opening.

When the crucible heating device works, the heating body 4 is electrified and heated through the power receiving electrode bar, heat is transferred to the outer wall of the crucible body 3 through the heat conducting layer, the graphite sleeve is used as the outer wall of the crucible body 3, a sintering material in the crucible can be directly heated, and impurities generated in the heating process of the crucible body 3 are discharged through the gas guide pipe 5 arranged in the middle; this kind of mode is as the sleeve with the outer wall of the crucible body 3, and the centre of the crucible body 3 is ventilated, and impurity comes out and is taken away through the clearance between crucible cover 2 and the centre pipe of ventilating for 3 centers of the crucible body are heated lower region and are ventilated, effectively reduce heat dissipation, and the graphite sleeve of the 3 outer walls of the crucible body simultaneously can fully conduct heat, improves vertical furnace heating efficiency, can improve the efficiency of diameter 800mm stove by 20%, and the stove is less, and the proportion of improvement is big more.

Although the present invention has been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without inventive work are still within the scope of the present invention.

Claims

1. The utility model provides a crucible structure, its characterized in that includes furnace body, heat-generating body, the crucible body and the air duct that the cover was established in proper order from the extroversion, and the outer wall of the crucible body is the graphite sleeve, and crucible body center sets up the air duct, and the impurity that produces passes through the air duct in the crucible body heating process discharges.

2. The crucible structure of claim 1, wherein the gas-guide tube is a graphite tube.

3. The crucible structure as recited in claim 1, wherein the crucible body has a through hole in the center, and the through hole is provided with a gas-guiding tube.

4. The crucible structure as recited in claim 1, wherein a furnace cover is provided on the top of the furnace body, and a furnace cover insulating layer is provided in the furnace cover.

5. The crucible structure as claimed in claim 4, wherein the furnace cover has an inlet at the center thereof, an inert gas is introduced into the inlet, and a crucible cover is provided at the top of the crucible body, the inlet communicating with a through hole at the center of the crucible cover.

6. The crucible structure of claim 5, wherein the crucible cover has a set gap with the gas-guide tube.

7. The crucible structure as recited in claim 1, wherein said furnace body is a cylindrical structure with an open top, and a lid is mounted at the open top.

8. The crucible structure as recited in claim 1, wherein the bottom center of the furnace body is provided with a gas outlet, and the gas outlet is communicated with the through hole at the bottom of the crucible.

9. The crucible structure according to claim 1, wherein a heat conductive layer is provided between the heating body and the graphite sleeve.

10. The crucible structure of claim 1, wherein an insulating layer is provided in the furnace body.