CN220649068U - Graphite solid core cladding resistance smelting furnace for titanium diboride powder production - Google Patents
Graphite solid core cladding resistance smelting furnace for titanium diboride powder production Download PDFInfo
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- CN220649068U CN220649068U CN202320556383.5U CN202320556383U CN220649068U CN 220649068 U CN220649068 U CN 220649068U CN 202320556383 U CN202320556383 U CN 202320556383U CN 220649068 U CN220649068 U CN 220649068U
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- titanium diboride
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 28
- QYEXBYZXHDUPRC-UHFFFAOYSA-N B#[Ti]#B Chemical compound B#[Ti]#B QYEXBYZXHDUPRC-UHFFFAOYSA-N 0.000 title claims abstract description 25
- 229910033181 TiB2 Inorganic materials 0.000 title claims abstract description 25
- 229910002804 graphite Inorganic materials 0.000 title claims abstract description 22
- 239000010439 graphite Substances 0.000 title claims abstract description 22
- 238000003723 Smelting Methods 0.000 title claims abstract description 17
- 239000000843 powder Substances 0.000 title claims abstract description 13
- 238000005253 cladding Methods 0.000 title claims abstract description 10
- 238000004519 manufacturing process Methods 0.000 title claims description 20
- 239000007787 solid Substances 0.000 title claims description 7
- 238000010438 heat treatment Methods 0.000 claims abstract description 25
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 9
- 239000010703 silicon Substances 0.000 claims abstract description 9
- 239000003575 carbonaceous material Substances 0.000 claims abstract description 5
- 238000003825 pressing Methods 0.000 claims abstract description 5
- 238000009413 insulation Methods 0.000 claims description 20
- 239000011449 brick Substances 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 7
- 229910052799 carbon Inorganic materials 0.000 claims description 5
- 239000010431 corundum Substances 0.000 claims description 5
- 229910052593 corundum Inorganic materials 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 239000006004 Quartz sand Substances 0.000 claims description 3
- HMDDXIMCDZRSNE-UHFFFAOYSA-N [C].[Si] Chemical compound [C].[Si] HMDDXIMCDZRSNE-UHFFFAOYSA-N 0.000 claims description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 3
- 239000010453 quartz Substances 0.000 claims description 3
- 238000005245 sintering Methods 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 238000011031 large-scale manufacturing process Methods 0.000 abstract description 2
- 239000000126 substance Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000007789 gas Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000000227 grinding Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000008367 deionised water Substances 0.000 description 2
- 229910021641 deionized water Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000003064 anti-oxidating effect Effects 0.000 description 1
- 239000012300 argon atmosphere Substances 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000011253 protective coating Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 238000001771 vacuum deposition Methods 0.000 description 1
- 238000001291 vacuum drying Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 238000005491 wire drawing Methods 0.000 description 1
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Abstract
The utility model discloses a graphite solid-core cladding resistance smelting furnace for producing titanium diboride powder, which is characterized by comprising a furnace body and heating components, wherein graphite electrodes externally connected with a silicon controlled rectifier cabinet are respectively arranged at two ends of the furnace body, the heating components are formed by pressing graphite or other carbon materials, the heating components are arranged in the center of the furnace body and serve as furnace cores, the highest temperature of the heating components can reach 2200 ℃, and the surface load of the heating components is 3-12w/cm 2 . The utility model can utilize heat energy to the greatest extent to reduce energy consumption and realize low costAnd (5) large-scale production.
Description
Technical Field
The utility model relates to the technical field of titanium diboride powder production, in particular to a smelting furnace for titanium diboride powder production.
Background
The titanium diboride powder is gray or gray black, has a melting point of 2980 ℃, has high hardness and has the Mohs hardness of 9.2; the resistivity was 14.4. Mu. Ω. Cm. The antioxidation temperature of titanium diboride in the air can reach 1000 ℃, and the titanium diboride is stable in HCl and HF acid; can be made into various shapes of components. Because titanium diboride has the excellent performance, the titanium diboride is widely used for manufacturing vacuum coating conductive evaporation boats; finish machining tool, wire drawing die, extrusion die, sand blast nozzle and dynamic sealing element; a high temperature crucible, rocket nozzle protective coating; military protective clamping, aluminum electrolysis cell cathode coating, aluminum alloy grain refiner and the like. The main production processes of titanium diboride include carbothermic reduction method and self-diffusion method. The main raw materials of the titanium diboride are compounds containing carbon and boron elements or high-purity carbon powder and metal boron powder. Because of the high temperature required for titanium diboride production, the traditional production process utilizes a carbon tube furnace or a high temperature vacuum sintering furnace for production. For example, chinese patent publication No. CN115072732A, application date 2022.06.14 discloses a preparation method of titanium diboride ultrafine powder, comprising the following steps: drying the composite molten salt in a vacuum drying oven to remove water and obtain a first substance; mixing titanium dioxide and boron powder to obtain a second substance; mixing the first and second substances, manually grinding to uniformly mix the first and second substances, and placing the mixture into a corundum crucible; calcining the corundum crucible in a tubular furnace, heating and preserving heat for a period of time under the protection of argon atmosphere, and then cooling to obtain a third substance; taking out the third substance cooled to room temperature, dissolving the third substance in deionized water, and removing residual salt and byproducts to obtain a fourth substance; filtering the fourth substance, repeatedly cleaning with deionized water and absolute ethyl alcohol, and drying the filtered product to obtain the required product. The production process of the patent application is simple and environment-friendly, and the production process and post-partum process have no generation and residue of high-risk substances. However, the application of the tube furnace equipment assumes that the production of titanium diboride is difficult to realize large-scale low-cost production, and is also a main reason that the titanium diboride is difficult to popularize and apply on a large scale at present.
Disclosure of Invention
The utility model aims to solve the defects of the prior art, and provides a graphite solid-core cladding resistance smelting furnace for titanium diboride powder production, which can greatly reduce the production cost of titanium diboride and realize mass industrialized production.
The utility model adopts the following technical proposal to realize the aim: raw titanium diboride powderThe produced graphite solid core cladding resistance smelting furnace is characterized by comprising a furnace body and heating components, wherein graphite electrodes externally connected with a silicon controlled rectifier cabinet are respectively arranged at two ends of the furnace body, the heating components are formed by pressing graphite or other carbon materials, the heating components are arranged in the center of the furnace body and serve as furnace cores, the highest temperature of the heating components can reach 2200 ℃, and the surface load of the heating components is 3-12w/cm 2 。
As a further explanation of the scheme, the furnace body comprises a base, end wall masonry arranged at two ends of the base respectively, and heat insulation wall bodies arranged between the end wall masonry at two ends.
Further, a cavity for accommodating a plurality of burning boats is arranged in the furnace body, and heating component materials are filled after the burning boats are placed in the cavity.
Further, an exhaust gas collecting device is arranged at the top of the furnace body and comprises an exhaust flue and an exhaust fan, and the exhaust flue is connected with a spraying device.
Further, the heat-insulating wall body comprises a first-stage heat-insulating layer, a second-stage heat-insulating layer, a third-stage heat-insulating layer and a steel furnace shell which are sequentially arranged from inside to outside; the first-stage heat insulation layer is mainly formed by stacking porous carbon bricks and carbon silicon bricks; the second-stage heat insulation layer is mainly formed by piling up high-alumina bricks, quartz bricks and corundum bricks; the third heat insulating layer is a quartz sand layer.
Further, the silicon controlled rectifier cabinet is connected with an electric furnace transformer and forms a power supply system with the electric furnace transformer, the alternating current output of the circuit transformer is converted into direct current output, the electric furnace transformer is a special transformer for low-voltage and high-current output, and the electric furnace transformer is connected with a power grid through a group of switches.
The beneficial effects achieved by adopting the technical proposal of the utility model are as follows:
the utility model adopts a smelting furnace structure mainly composed of a furnace body and heating components, graphite electrodes externally connected with a silicon controlled rectifier cabinet are respectively arranged at two ends of the furnace body, the heating components are formed by pressing graphite or other carbon materials and are arranged in the center of the furnace body and serve as furnace cores, high-temperature environment and energy required by titanium diboride production can be provided, and smelting raw materials are directly buried in the heating components, so that the energy consumption can be reduced to the greatest extent by utilizing heat energy, large-power and large-capacity production can be realized.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
fig. 2 is a schematic diagram of the internal structure of the present utility model.
Reference numerals illustrate: 1. the furnace comprises a furnace body 1-1, a base 1-2, an end wall masonry 1-3, a heat insulation wall 1-31, a first-stage heat insulation layer 1-32, a second-stage heat insulation layer 1-33, a third-stage heat insulation layer 1-34, a steel furnace shell 2, a heating component 3, a graphite electrode 4, a conductive bus 5, a waste gas collecting device 6 and a burning boat.
Description of the embodiments
The following describes the specific embodiments of the present utility model further, so that the technical scheme and the beneficial effects of the present utility model are more clear and definite. The embodiments described below are exemplary and are intended to illustrate the present utility model and should not be construed as limiting the utility model.
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout.
As shown in figures 1 and 2, the utility model relates to a graphite solid-core cladding resistance smelting furnace for producing titanium diboride powder, which comprises a furnace body 1 and a heating component 2, wherein the heating component is formed by pressing graphite or other carbon materials, is arranged in the center of the furnace body and is used as a furnace core, the highest temperature of the heating component can reach 2200 ℃, and the surface load of the heating component is 3-12w/cm 2 . Graphite electrodes 3 externally connected with a silicon controlled rectifier cabinet are respectively arranged at two ends of the furnace body 1, the graphite electrodes 3 are connected with conductive buses 4, the input current of the graphite electrodes is controlled by a power supply system consisting of an electric furnace transformer and the silicon controlled rectifier cabinet, the silicon controlled rectifier cabinet is used for converting the alternating current output of the electric furnace transformer into direct current output, the output current can be controlled, the smelting temperature and the change curve of the electric furnace can be regulated, and the smelting temperature is generally controlled at 1350-1750 ℃. The transformer of the electric furnace is a low-voltage large-current transmissionThe special transformer is connected with the power grid through a group of switches.
The furnace body 1 comprises a base 1-1, end wall masonry 1-2 arranged at two ends of the base respectively, and a heat insulation wall 1-3 arranged between the end wall masonry at two ends. The base is rectangular and is made of high-temperature resistant materials. The furnace body 1 is internally provided with a chamber for accommodating a plurality of burning boats 6, and heating component materials are filled after the burning boats are arranged in the chamber. The heat insulation wall body 1-3 comprises a first-stage heat insulation layer 1-31, a second-stage heat insulation layer 1-32, a third-stage heat insulation layer 1-33 and a steel furnace shell 1-34 which are sequentially arranged from inside to outside; the first-stage heat insulation layer is mainly formed by stacking porous carbon bricks and carbon silicon bricks; the second-stage heat insulation layer is mainly formed by piling up high-alumina bricks, quartz bricks and corundum bricks; the third heat insulating layer is a quartz sand layer. The top of furnace body is provided with exhaust gas collection device 5, and exhaust gas collection device includes exhaust flue, air discharge fan, and exhaust flue is connected with spray set, but because this exhaust gas collection form is comparatively common, will not be described in detail here.
In the operation process, the mixture is filled in the burning boat, then is sent into the furnace body and the burning boat is buried in the furnace core. Stopping power supply after the smelting process is finished, naturally or spraying and cooling the resistance furnace and products in the furnace to normal temperature, gradually removing the furnace shell, the tertiary heat insulation layer, the secondary heat insulation layer, the primary heat insulation layer and the heating filling material from outside to inside after cooling, taking out the burning boat, collecting smelted materials in the burning boat, purifying and grading; the purification refers to removing impurities from the collected materials by adopting grinding, water washing or other physical and chemical modes, and the impurities are removed by adopting the materials by adopting the grinding and water washing modes, which are common in the technical field, so that the details are not repeated here; the classification is to divide the product into the required particle size according to a certain particle size by adopting the air flow method, overflow method, sedimentation method or sieving method, and the classification process is common in the field, so that the description is omitted here.
Compared with the prior art, the smelting furnace can be used for making various power and sizes according to the capacity requirement, and can realize large-scale production.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply indicates that the first feature is less level than the second feature.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., 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 present utility model. In this specification, schematic representations of the above terms should not be understood as necessarily being directed 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. Further, one skilled in the art can engage and combine the different embodiments or examples described in this specification.
While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that changes, modifications, substitutions and variations may be made therein by those of ordinary skill in the art without departing from the scope of the utility model, which is defined by the appended claims and their equivalents. The portions of the detailed description that are not presented are all prior art or common general knowledge.
Claims (4)
1. The graphite solid core cladding resistance smelting furnace for producing titanium diboride powder is characterized by comprising a furnace body and heating components, wherein graphite electrodes externally connected with a silicon controlled rectifier cabinet are respectively arranged at two ends of the furnace body, and the heating components are formed by pressing carbon materials and are arranged in the center of the furnace body and serve as furnace cores; the furnace body comprises a base, end wall masonry arranged at two ends of the base respectively, and a heat insulation wall arranged between the end wall masonry at two ends; the heat-insulating wall body comprises a first-stage heat-insulating layer, a second-stage heat-insulating layer, a third-stage heat-insulating layer and a steel furnace shell which are sequentially arranged from inside to outside; the first-stage heat insulation layer is mainly formed by stacking porous carbon bricks and carbon silicon bricks; the second-stage heat insulation layer is mainly formed by piling up high-alumina bricks, quartz bricks and corundum bricks; the third heat insulating layer is a quartz sand layer.
2. The graphite solid core cladding resistance smelting furnace for producing titanium diboride powder according to claim 1, wherein a chamber for accommodating a plurality of sintering boats is arranged in the furnace body, and heating component materials are filled after the sintering boats are arranged in the furnace body.
3. The graphite solid core cladding resistance smelting furnace for titanium diboride powder production according to claim 1, wherein the top of the furnace body is provided with an exhaust gas collecting device, the exhaust gas collecting device comprises an exhaust flue and an exhaust fan, and the exhaust flue is connected with a spraying device.
4. The graphite solid core cladding resistance smelting furnace for titanium diboride powder production according to claim 1, wherein the silicon controlled rectifier cabinet is connected with an electric furnace transformer and forms a power supply system with the electric furnace transformer, the alternating current output of the circuit transformer is converted into direct current output, and the electric furnace transformer is connected with a power grid through a set of switches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320556383.5U CN220649068U (en) | 2023-03-20 | 2023-03-20 | Graphite solid core cladding resistance smelting furnace for titanium diboride powder production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320556383.5U CN220649068U (en) | 2023-03-20 | 2023-03-20 | Graphite solid core cladding resistance smelting furnace for titanium diboride powder production |
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| Publication Number | Publication Date |
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| CN220649068U true CN220649068U (en) | 2024-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320556383.5U Active CN220649068U (en) | 2023-03-20 | 2023-03-20 | Graphite solid core cladding resistance smelting furnace for titanium diboride powder production |
Country Status (1)
| Country | Link |
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| CN (1) | CN220649068U (en) |
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