CN209689378U - Smelting furnace - Google Patents

Abstract

The utility model provides a kind of smelting furnace, including furnace body and conductive electrode, and the conductive electrode is stretched out from the furnace body and is connected to external power supply, and insulating layer is embedded in the furnace body, and the inner hollow of the insulating layer simultaneously forms heat-insulation chamber.Smelting furnace provided by the utility model reduces the outside loss process of smelting furnace internal heat, to improve production efficiency by the way that hollow insulating layer, the heat using the heat-insulation chamber in insulating layer come smelting furnace in smelting process is arranged；Due to the heat exchange action of insulating layer, the heat distribution of furnace body various pieces is homogenized, and the material quality smelted out can be guaranteed.

Description

Smelting furnace

Technical field

The utility model relates to material technical field of smelting more particularly to a kind of smelting furnaces.

Background technique

Smelting furnace has in engineering fields such as material, chemical industry and widely answers as the important equipment for smelting and preparing material With.For being graphitized electric smelting furnace's furnace, not only thermal and insulating performance is poor for existing graphitization electric smelting furnace, and energy dissipation is existing As fairly obvious, the temperature between each position is also and unbalanced.It reduce production efficiency and quality is smelted, so that existing stone The market demand for not being able to satisfy high-quality and mass production of Mo Hua electric smelting furnace.

Utility model content

In view of this, the thermal and insulating performance of the smelting furnace is relatively preferable it is necessary to provide a kind of improved smelting furnace, it is raw It produces efficiency and smelting quality is higher.

The utility model provides a kind of smelting furnace, including furnace body and conductive electrode, and the conductive electrode is from the furnace body It stretches out and is connected to external power supply, insulating layer is embedded in the furnace body, the inner hollow of the insulating layer simultaneously forms heat-insulation chamber.

Further, the smelting furnace includes cavity regulating device, and the cavity regulating device is connected to the heat-insulation chamber simultaneously The gas density of the heat-insulation chamber can be adjusted.

Further, the cavity regulating device includes vacuum pump, is offered described in connection on the wall surface of the insulating layer The first interface of heat-insulation chamber, the vacuum pump by the first interface extract the gas in the heat-insulation chamber and adjust it is described every The gas density of hot chamber.

Further, the cavity regulating device includes pressure sensor, the pressure sensor for detect it is described every The pressure state of hot chamber.

Further, the second interface and third interface for being connected to the heat-insulation chamber are offered on the wall surface of the insulating layer, The second interface and third interface can be connected to the extraneous and cooling heat-insulation chamber.

Further, control valve, each control are mounted on the first interface, second interface and third interface The corresponding connected state for controlling the first interface, second interface and third interface of valve.

Further, the heat-insulation chamber with a thickness of 200 to 500 millimeters；And/or

The wall thickness of the heat-insulation chamber is 5 millimeters.

Further, the insulating layer is enclosed by muti-piece stainless steel plate and is set, the gap between stainless steel plate described in muti-piece Form the heat-insulation chamber.

Further, supporting element is provided in the heat-insulation chamber, the supporting element is in contact with the inner wall of the insulating layer And support the insulating layer.

Further, the heat-insulation chamber vacuum setting.

Smelting furnace provided by the utility model is smelted by the way that hollow insulating layer is arranged using the heat-insulation chamber in insulating layer Heat of the furnace in smelting process reduces the outside loss process of smelting furnace internal heat, to improve production effect Rate；Due to the heat exchange action of insulating layer, the heat distribution of furnace body various pieces is homogenized, and the material quality smelted out can obtain To guarantee.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of smelting furnace in one embodiment of the utility model；

Fig. 2 is structural schematic diagram of the smelting furnace under the first side view visual angle shown in Fig. 1；

Fig. 3 is structural schematic diagram of the smelting furnace under the second side view visual angle shown in Fig. 1；

Fig. 4 is the structural schematic diagram of one layer of wall in furnace body shown in Fig. 1；

Fig. 5 is the structural schematic diagram of another layer of wall in furnace body shown in Fig. 1.

Main element symbol description

The following detailed description will be further explained with reference to the above drawings the utility model.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

It should be noted that it can be installed directly in another group when component is referred to as " being installed in " another component On part or there may also be components placed in the middle.When a component is considered as " being set to " another component, it be can be directly It connects and is arranged on another component or may be simultaneously present component placed in the middle.When a component be considered as " being fixed on " another Component, it, which can be, is directly anchored on another component or may be simultaneously present component placed in the middle.

Unless otherwise defined, all technical and scientific terms used herein are led with the technology for belonging to the utility model The normally understood meaning of the technical staff in domain is identical.Terminology used in the description of the utility model herein only be The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term as used herein " and/or " include Any and all combinations of one or more related listed items.

It please refers to Fig.1 to Fig.3, Fig. 1 is the structural schematic diagram of smelting furnace 100 in one embodiment of the utility model, Fig. 2 For structural schematic diagram of the smelting furnace 100 shown in Fig. 1 under the first side view visual angle, Fig. 3 is smelting furnace 100 shown in Fig. 1 in second side Depending on the structural schematic diagram under visual angle.

Smelting furnace 100 using thermal energy calcining starting material and is smelted and meets technique requirement out for smelting and prepare material Material, be all with a wide range of applications in material and chemical field.

In present embodiment, smelting furnace 100 is graphitizing furnace, utilizes " Acheson " graphite production and utilizes electric current Fuel factor calcines graphite raw material, to prepare the graphite material for meeting negative electrode of lithium ion battery performance requirement.It can manage Solution, in other implementations, smelting furnace 100 are also used as the other kinds of smelting furnace such as converter, iron-smelting furnace and use, Namely the other kinds of material such as steel, iron can also be smelted and be prepared to smelting furnace 100, as long as this kind of material be able to use it is practical The smelting furnace 100 of novel offer.

Smelting furnace 100 includes furnace body 10 and conductive electrode 20, and conductive electrode 20 protrudes into the inside of furnace body 10 and is connected to outside Power supply.Furnace body 10 as dinectly bruning furnace and provides the reacting environment of graphite preparation for accommodating and smelting graphite raw material；It leads Electrode 20 is for being connected to external power supply, to for calcining and smelt supply energy.

For the inner hollow of furnace body 10 to form the smelting chamber 11 smelted and calcined for graphite raw material, conductive electrode 20 protrudes into smelting It refines the inside of chamber 11 and can be contacted with graphite raw material in smelting chamber 11 is accommodated in.In present embodiment, for the ease of furnace body 10 Placement on the ground, the substantially cabinet of furnace body 10.It is appreciated that in other implementations, furnace body 10 can also use The other shapes in addition to cabinet such as spheroidal, elliposoidal, as long as preparation and smelting that furnace body 10 can complete graphite material are i.e. It can.

In present embodiment, it is contemplated that refractory brick has preferable high temperature resistance and cost advantage more outstanding, furnace Body 10 is enclosed by the wall that refractory brick is built into be set.Certainly, in other implementations, furnace body 10 can also be using except fire resisting Other materials except brick, which encloses, to be set.

Referring to Figure 4 together and Fig. 5, Fig. 4 be one layer of wall in furnace body 10 shown in Fig. 1 structural schematic diagram, Fig. 5 Fig. 1 The structural schematic diagram of another layer of wall in shown furnace body 10.Furnace in order to improve the structural strength of furnace body 10, in present embodiment Body 10 is built a wall using plum blossom and one in method is built along two header wall methods.

The plum blossom method of building a wall refer to each layer of wall by being in any case distributed, the brick body cloth that the brick body in different ornaments direction is successively built into Equipment, method, the brick body that long side is parallel to metope masonry is stretcher, and the brick body that long side is built perpendicular to metope is header, and plum blossom is built a wall Method refers to that the stretcher and header laid in each layer of wall and be successively spaced, furnace body 10 can be improved furnace using this kind of building method The structural integrity of body 10.

Certainly, in other implementations, furnace body 10 can also be built using other wall building methods.

Referring again to Fig. 1 to Fig. 3, conductive electrode 20 is connected to external power supply and constitutes electrical circuit together with graphite raw material. Graphite raw material is as a part in electrical circuit, and when circuit conducting, graphite raw material generates heat under the action of heating effect of current to be forged The graphite material of composite lithium ion battery cathode characteristic requirements is burnt and is prepared to, to complete the preparation process of material.

In actual use, conductive electrode 20 is often more, and more conductive electrodes 20 are spaced apart from each other and arranged in parallel, Every two conductive electrodes 20 are oppositely arranged, and graphite raw material is located between two opposite conductive electrodes 20 to constitute electrical circuit；If It sets a fairly large number of conductive electrode 20 and helps to improve production capacity.

In present embodiment, conductive electrode 20 is the cylindrical graphite electrode once roasted, is helped using graphite electrode In the purity for improving the graphite material prepared, it can be avoided introducing introduced contaminants.It is appreciated that conductive electrode 20 can also be adopted With other kinds of electrode, size can be selected according to actual working condition requirement.

Insulation ability of the existing smelting furnace 100 when carrying out material preparation is more weak, between each position Temperature is also and unbalanced.This not only lowers production efficiency, the quality for smelting material out is also reduced.The utility model provides Smelting furnace 100 be internally provided with insulating layer 30 in furnace body 10, the edge of insulating layer 30 is embedded in inside the wall of furnace body 10, inside It is hollow and form heat-insulation chamber 31, due to insulating layer 30 can be completely cut off using the gas that inside is formed smelting furnace 100 in heating, protect The heat of thermophase reduces the outside loss process of 100 internal heat of smelting furnace, to improve production efficiency；By It is homogenized in the heat distribution of the heat exchange action of insulating layer 30,10 various pieces of furnace body, the material quality smelted out can obtain To guarantee.

In an embodiment of the utility model, insulating layer 30 is enclosed by muti-piece stainless steel plate to be set, insulating layer 30 In such a way that stainless steel plate is put together, since the structural strength of stainless steel plate is larger, insulating layer 30 is able to maintain in the temperature difference Structural stability under biggish smelting state and blowing out state, avoid between two states switch when inside gas because of heat Swollen shrinkage and generate excessive deformation, to promote the reliability and stability of smelting furnace 100.

Certainly, in other implementations, insulating layer 30 can also be using other plate systems in addition to mostly rust steel plate At, if this kind of material will not because of under the state of smelting and blowing out state the temperature difference and temperature deformation influencing smelting furnace 100 just Often smelt.

Further, insulating layer 30 is enclosed by welding by six pieces of stainless steel plates and is set, and insulating layer 30 is in hollow Quadrangular shape；The quantity of insulating layer 30 is two, and two insulating layers 30 are laid in two of box-shaped furnace body 10 and ground face contact In long side wall, each insulating layer 30 completely cuts off the heat loss of a long side wall in furnace body 10；The quantity of insulating layer 30 is set It is set to two and is arranged in the long side wall of furnace body 10, cost can be reduced on the basis of guaranteeing heat insulation, in sexual valence There is preferable advantage than upper.

It is set it is appreciated that insulating layer 30 can also be enclosed using the stainless steel plate of the other quantity in addition to six pieces, no Connection type between rust steel plate is also not necessarily limited to weld this one kind, if enclose set made of insulating layer 30 can guarantee air-tightness i.e. It can；Laying mode of the insulating layer 30 inside furnace body 10, which is also not limited to, can only use the above-mentioned inbuilt mode of long side wall, As long as insulating layer 30 can be realized its heat insulating function.

Further, the thickness alpha of heat-insulation chamber 31 is 200 to 500 millimeters in insulating layer 30, by the heat-insulation chamber in insulating layer 30 31 thickness alpha is preferably 200 to 500 millimeters, can control insulating layer on the basis of guaranteeing 30 heat preservation and insulation of insulating layer 30 size, so that the size for the extension furnace body 10 that insulating layer 30 will not be excessive when being embedded in furnace body 10, facilitates smelting furnace 100 work in limited place.

Additional description is needed, the thickness alpha of the heat-insulation chamber 31 of insulating layer 30 refers to overlooking visual angle in smelting furnace 100 Under, intracorporal two of 100 two long side walls of smelting furnace are embedded in the inside dimension of observed insulating layer 30, namely diagram The distance between stainless steel plate and thickness of wall body subtract the remaining thickness of institute after the thickness of two stainless steel plates.

Further, the wall thickness of stainless steel plate is preferably 5 to 10 millimeters, and the intensity and performance of stainless steel plate is relatively at this time It is good, it can satisfy performance requirement, also there is some superiority in cost.

In an embodiment of the utility model, insulating layer 30 is internally provided with multiple supporting elements 32, supporting element 32 contact with the inner wall of insulating layer 30 and support insulating layer 30.Supporting element 32 is set in the inside of insulating layer 30, can be improved guarantor The structural strength of warm layer 30, so that insulating layer 30 enhances the resistivity of itself thermal-induced deformation, to improve smelting furnace 100 Reliability and stability.

Further, supporting element 32 is in " rice " font, and being crossed to fix by the support rod of four or other quantity forms, often Root support rod is mutually fixed with the inner wall of insulating layer 30；Change when insulating layer 30 in temperature and internal 31 pressure itself of heat-insulation chamber Under the influence of when deforming, supporting element 32 can support and fix insulating layer 30, limit the deformation of insulating layer 30.Due to " rice " word Shape can intersect to form multiple triangular structures, and stability will more preferably compared with the supporting element of other shapes, being capable of biggish promotion smelting The stability of furnace 100.

In an embodiment of the utility model, in order to promote the heat-insulating capability of insulating layer 30, inside insulating layer 30 Heat-insulation chamber 31 be set as vacuum state, since the heat-insulating capability of vacuum will further be better than air, insulating layer 30 every Thermal energy power is further promoted.

Specifically, the realization of the vacuum state inside insulating layer 30 can directly customize at producer and meet heat-proof quality It is required that the insulating layer 30 in inner vacuum state, cavity regulating device can also be set in smelting furnace 100 come adjust protect Pressure state inside warm layer 30, the vacuum degree inside insulating layer 30 is adjusted according to specific duty requirements.

In present embodiment, the cavity regulating device 40 of connection heat-insulation chamber 31 is provided in smelting furnace 100, cavity adjusts dress 40 are set for extracting the air in insulating layer 30 in heat-insulation chamber 31, so that the heat-insulation chamber 31 of insulating layer 30 is at vacuum shape State.

Specifically, cavity regulating device 40 includes vacuum pump 41, and the be connected to for vacuum pump 41 is offered on insulating layer 30 One interface 33, vacuum pump 41 are connected to the heat-insulation chamber 31 inside insulating layer 30 by first interface 33.Vacuum pump 41 is operated and is taken out The air in insulating layer 30 in heat-insulation chamber 31 is taken, until the air in insulating layer 30 reaches vacuum state.

In actual use, after the edge of insulating layer 30 is embedded in the inside of furnace body 10, vacuum pump 41 operates and extracts heat-insulation chamber The heat-insulating capability of air in 31, insulating layer 30 is gradually promoted with the continuous extraction of inner air until its internal heat-insulation chamber 31 reach vacuum state；Later, smelting furnace 100, which starts to warm up, smelts and prepares graphite material.

Further, cavity regulating device 40 includes pressure sensor 42, and pressure sensor 42 is for detecting heat-insulation chamber 31 Pressure state, thus controllable 30 inner air of extraction insulating layer, the air for avoiding the occurrence of extraction is excessive and when causing to extract Between too long and the air that extracts it is very few and phenomena such as cause heat-proof quality weak.

In an embodiment of the utility model, since the production cycle of smelting furnace 100 includes heating, heat preservation and drop Warm three production phases tend to smelting furnace 100 with preferable thermal and insulating performance, in cooling rank in heating and holding stage Section, which tends to smelting furnace 100, faster to cool down to shorten cooling time, to achieve the purpose that compress the production cycle.It examines Consider the compression to the production cycle, insulating layer 30 is configured to the state being quickly cooled down by smelting furnace 100, so that heat preservation The ability with heat-insulation and heat-preservation in the heating of smelting furnace 100 and holding stage of layer 30, can be quickly cooled down certainly again in temperature-fall period Body and furnace body 10.

Specifically, second interface 34 and third interface 35, second interface 34 and third interface 35 are offered on insulating layer 30 It is connected with heat-insulation chamber 31.When smelting furnace 100 is in heating and holding stage, 35 envelope of second interface 34 and third interface It closes, vacuum pump 41 operates so that insulating layer 30 plays the function of its heat-insulation and heat-preservation；It is in when smelting furnace 100 completes material preparation When temperature-fall period, the sealing element at second interface 34 and third interface 35 is removed, and insulating layer 30 passes through second interface 34 and third Interface 35 is connected to the external world and realizes heat dissipation.

At this point, one in second interface 34 and third interface 35 is used as air inlet, another is as air outlet, heat-insulation chamber 31 are quickly cooled down being made of in air-cooled access second interface 34 and third interface 35, so that realizing quickly reduces.

In addition, vacuum pump 41 can also be opened when smelting furnace 100 is in temperature-fall period, second interface 34 and at this time Three interfaces 35 are used as air inlet to cool down furnace body 10, and furnace body 10 can be quickly cooled down with preferable rate.

Further, it is provided with control valve (not shown) on first interface 33, second interface 34 and third interface 35, controlled Valve processed is used to control the connected state of the first interface 33 being correspondingly connected with, second interface 34 and third interface 35.

Preferably, first interface 33 is opened at burner, and second interface 34 is opened at furnace tail, and third interface 35 is opened in Furnace body medium position；The aperture of first interface 33, second interface 34 and third interface 35 is preferably 200 millimeters.So set, smelting The reliability and stability of furnace 100 is promoted, and the material quality smelted out is also relatively high.

Smelting furnace 100 provided by the utility model is by being arranged hollow insulating layer 30, using heat-insulated in insulating layer 30 Chamber 31 carrys out heat of the smelting furnace 100 in smelting process, reduces the outside loss process of 100 internal heat of smelting furnace, thus Raising improves production efficiency；Due to the heat exchange action of insulating layer 30, the heat distribution of 10 various pieces of furnace body is homogenized, smelting The material quality produced can be guaranteed.

Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited In contradiction, all should be considered as described in this specification.

Those skilled in the art it should be appreciated that more than embodiment be intended merely to illustrate that this is practical new Type, and be not used as the restriction to the utility model, as long as implementing in the spirit of the utility model to above Suitably change and change made by mode and all falls in the range of the requires of the utility model protection.

Claims (10)

1. a kind of smelting furnace, including furnace body and conductive electrode, the conductive electrode is stretched out from the furnace body and and external power supply Connection, which is characterized in that insulating layer is embedded in the furnace body, the inner hollow of the insulating layer simultaneously forms heat-insulation chamber.

2. smelting furnace as described in claim 1, which is characterized in that the smelting furnace includes cavity regulating device, the cavity Regulating device is connected to the heat-insulation chamber and can adjust the gas density of the heat-insulation chamber.

3. smelting furnace as claimed in claim 2, which is characterized in that the cavity regulating device includes vacuum pump, the heat preservation Offer the first interface for be connected to heat-insulation chamber on the wall surface of layer, the vacuum pump by the first interface extract described in every The intracavitary gas of heat and the gas density for adjusting the heat-insulation chamber.

4. smelting furnace as claimed in claim 3, which is characterized in that the cavity regulating device includes pressure sensor, described Pressure sensor is used to detect the pressure state of the heat-insulation chamber.

5. smelting furnace as claimed in claim 3, which is characterized in that it is described heat-insulated to offer connection on the wall surface of the insulating layer The second interface and third interface of chamber, the second interface and third interface can be connected to the extraneous and cooling heat-insulation chamber.

6. smelting furnace as claimed in claim 5, which is characterized in that on the first interface, second interface and third interface Control valve, each corresponding connected state for controlling the first interface, second interface and third interface of the control valve are installed.

7. smelting furnace as described in claim 1, which is characterized in that the heat-insulation chamber with a thickness of 200 to 500 millimeters；And/ Or,

The wall thickness of the heat-insulation chamber is 5 millimeters.

8. smelting furnace as described in claim 1, which is characterized in that the insulating layer is enclosed by muti-piece stainless steel plate to be set, more Gap between stainless steel plate described in block forms the heat-insulation chamber.

9. smelting furnace as described in claim 1, which is characterized in that be provided with supporting element, the supporting element in the heat-insulation chamber It is in contact with the inner wall of the insulating layer and supports the insulating layer.

10. smelting furnace as described in claim 1, which is characterized in that the heat-insulation chamber vacuum setting.