CN204981189U - Preparation system of blue tungsten of high specific surface area - Google Patents
Preparation system of blue tungsten of high specific surface area Download PDFInfo
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- CN204981189U CN204981189U CN201520587819.2U CN201520587819U CN204981189U CN 204981189 U CN204981189 U CN 204981189U CN 201520587819 U CN201520587819 U CN 201520587819U CN 204981189 U CN204981189 U CN 204981189U
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- tungsten
- specific surface
- surface area
- feed bin
- preparation system
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Abstract
The utility model discloses a preparation system of blue tungsten of high specific surface area, include raw materials feed bin, batcher, forge burning furnace, tungsten oxide feed bin and sieving machine, the raw materials feed bin is connected to the pay -off mouth of forging burning furnace through the batcher, the discharge gate of forging burning furnace is connected to tungsten oxide feed bin entry, tungsten oxide bin outlet is connected to the sieving machine, it is provided with a plurality of temperature band control areas to forge burning furnace. Through the utility model discloses a blue tungsten preparation system takes through the temperature control who sets up a plurality of differences in forging burning furnace, can produce specific surface >= 10m2g's blue tungsten.
Description
Technical field
The utility model relates to a kind of Preparation equipment of blue tungsten, particularly the preparation system of the blue tungsten of a kind of high-specific surface area.
Background technology
Tungsten is a kind of non-ferrous metal of infusibility, is also a kind of important strategic resource, is used widely because it has the premium propertiess such as fusing point is high, hardness is large, ductility is strong, wear-resisting and corrosion-resistant.
Produce in the process of metal tungsten powder in tungsten oxide hydrogen reduction, the quality of character on reduction process and final tungsten powder of Tungsten oxide 99.999 used has larger impact.The specific surface area of Tungsten oxide 99.999 refers to the total surface area that unit mass oxidation tungsten powder has, conventional m
2/ g represents, its is the granularity of reflection oxidation tungsten powder and granule-morphology indirectly, be weigh oxidation tungsten powder in reduction process with the important indicator of gas-solid state substance reaction ability.The specific surface area of Tungsten oxide 99.999 greatly then means that reduction process has good dynamic conditions, is conducive to the infiltration of hydrogen and the effusion of water vapour when hydrogen reduction, and also require that when producing the lamp tungsten filament of doping tungsten oxide specific surface area is large, crackle is many, so that doping.Simultaneously because the Tungsten oxide 99.999 chemically reactive of high-specific surface area is high, reduction rate is large, therefore can accelerate to push away boat speed and strengthen boat charge (or improving the feeding coal of converter), thus the significant production efficiency improving tungsten powder.Also the Tungsten oxide 99.999 of bigger serface is conducive to producing the thinner tungsten powder of granularity, tungsten carbide powder to have a large amount of documents and production practice to show.Current tungsten powder, tungsten carbide powder technology are just towards ultra-fine (nanometer) change, super alligatoring, ultrapureization, centralization future development.The Tungsten oxide 99.999 of bigger serface will promote the development of ultrafine tungsten powder, tungsten carbide powder further.
Utility model content
The purpose of this utility model is to provide the preparation system of the blue tungsten of a kind of high-specific surface area, the blue tungsten possessing high-specific surface area can be prepared by this system, the blue tungsten of prepared high-specific surface area its can improve the dynamic conditions of blue tungsten reduction process, improve the production efficiency of tungsten powder, improve the doping performance of blue tungsten, also help and produce ultrafine tungsten powder, tungsten carbide powder.
For achieving the above object, the utility model is achieved through the following technical solutions:
The preparation system of the blue tungsten of a kind of high-specific surface area, it is characterized in that, comprise raw material feed bin, feeding machine, calcining furnace, Tungsten oxide 99.999 feed bin and sieve shaker, described raw material feed bin is connected to the feeding port of calcining furnace by feeding machine, the discharge port of described calcining furnace is connected to Tungsten oxide 99.999 feed bin entrance, described Tungsten oxide 99.999 bin outlet is connected to sieve shaker, and described calcining furnace is provided with multiple temperature band control region.
Preferably, described calcining furnace is rotary kiln.
Preferably, described feeding machine is screw feeder.
Preferably, described calcining furnace is provided with 3-6 temperature band control region.
The beneficial effects of the utility model: by blue tungsten preparation system of the present utility model by arranging multiple different temperature control cincture in calcining furnace, specific surface area>=10m can be produced
2the blue tungsten of/g, the blue tungsten chemically reactive of high-specific surface area is large, and hydrogen reduction speed, effectively improves the production efficiency of tungsten powder and be more conducive to producing rear end product ultrafine tungsten powder, tungsten carbide powder.
Accompanying drawing explanation
Accompanying drawing 1 is the preparation system schematic diagram of the blue tungsten of a kind of high-specific surface area of the utility model.
Embodiment
In the specification, term " ammonium tungsten compound " is the general designation of same (mixing) the polyacid ammonium salt compound of tungsten and calcinate thereof.
In the specification, term " blue tungsten " is that blue tungsten oxide is called for short.
In the specification, term APT is the abbreviation of " ammonium paratungstate ".
Below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail
The preparation system of the blue tungsten of a kind of high-specific surface area, comprise raw material feed bin 1, feeding machine, calcining furnace 2, Tungsten oxide 99.999 feed bin 3 and sieve shaker 4, described raw material feed bin 1 is connected to the feeding port of calcining furnace by feeding machine, the discharge port of described calcining furnace is connected to Tungsten oxide 99.999 feed bin entrance, described Tungsten oxide 99.999 bin outlet is connected to sieve shaker, and described calcining furnace is provided with 3-6 temperature band control region for carrying out the calcining of differing temps to raw material.
embodiment 1
Being inserted by APT in feeding warehouse, is that speed sends into vacuum tightness (0.5-0.8) × 10 by screw feeder with 200kg/h
4in the rotary kiln of Pa, pass into protective gas nitrogen, temperature control is: 750 DEG C, a band, 750 DEG C, two band, 660 DEG C, three band, 630 DEG C, four band, five are with 610 DEG C, 610 DEG C, six band.After rotary kiln calcining, cooling is sieved, and can obtain specific surface area is 12.35m
2the blue tungsten of/g.
embodiment 2
Being inserted by APT in feeding warehouse, is that speed sends into vacuum tightness (0.5-0.8) × 10 by screw feeder with 225kg/h
4in the rotary kiln of Pa, pass into protective gas nitrogen, temperature control is: 800 DEG C, a band, 800 DEG C, two band, 700 DEG C, three band, 640 DEG C, four band, five are with 640 DEG C, 610 DEG C, six band.After rotary kiln calcining, cooling is sieved, and can obtain specific surface area is 12.65m
2the blue tungsten of/g.
embodiment 3
Being inserted by APT in feeding warehouse, is that speed sends into vacuum tightness (0.8-1.2) × 10 by screw feeder with 180kg/h
4in the rotary kiln of Pa, pass into protective gas nitrogen, temperature control is: 750 DEG C, a band, 750 DEG C, two band, 660 DEG C, three band, 630 DEG C, four band, five are with 595 DEG C, 560 DEG C, six band.After rotary kiln calcining, cooling is sieved, and can obtain specific surface area is 10.91m
2the blue tungsten of/g.
According to the preparation method of the blue tungsten of a kind of high-specific surface area of the present utility model, specific surface area>=10m can be obtained
2the blue tungsten of/g.
Claims (4)
1. the preparation system of the blue tungsten of high-specific surface area, it is characterized in that, comprise raw material feed bin, feeding machine, calcining furnace, Tungsten oxide 99.999 feed bin and sieve shaker, described raw material feed bin is connected to the feeding port of calcining furnace by feeding machine, the discharge port of described calcining furnace is connected to Tungsten oxide 99.999 feed bin entrance, described Tungsten oxide 99.999 bin outlet is connected to sieve shaker, and described calcining furnace is provided with multiple temperature band control region.
2. the preparation system of the blue tungsten of a kind of high-specific surface area according to claim 1, it is characterized in that, described calcining furnace is rotary kiln.
3. the preparation system of the blue tungsten of a kind of high-specific surface area according to claim 1, it is characterized in that, described feeding machine is screw feeder.
4. the preparation system of the blue tungsten of a kind of high-specific surface area according to the arbitrary claim of claim 1-3, it is characterized in that, described calcining furnace is provided with 3-6 temperature band control region.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520587819.2U CN204981189U (en) | 2015-08-07 | 2015-08-07 | Preparation system of blue tungsten of high specific surface area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520587819.2U CN204981189U (en) | 2015-08-07 | 2015-08-07 | Preparation system of blue tungsten of high specific surface area |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204981189U true CN204981189U (en) | 2016-01-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520587819.2U Expired - Fee Related CN204981189U (en) | 2015-08-07 | 2015-08-07 | Preparation system of blue tungsten of high specific surface area |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204981189U (en) |
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2015
- 2015-08-07 CN CN201520587819.2U patent/CN204981189U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 330046 No. 118 West Beijing Road, Jiangxi, Nanchang Patentee after: JIANGXI TUNGSTEN HOLDING GROUP CO.,LTD. Address before: 330046 No. 118 West Beijing Road, Jiangxi, Nanchang Patentee before: JIANGXI RARE EARTH & RARE METALS TUNGSTEN GROUP HOLDING Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220215 Address after: 341000 Shuixi nonferrous metallurgy industrial base, Zhanggong District, Ganzhou City, Jiangxi Province Patentee after: JIANGWU H.C. STARCK TUNGSTEN PRODUCTS Co.,Ltd. Address before: 330046 No. 118 West Beijing Road, Jiangxi, Nanchang Patentee before: JIANGXI TUNGSTEN HOLDING GROUP CO.,LTD. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160120 |