CN205575672U - Preparation system of blue tungsten of thin granule - Google Patents
Preparation system of blue tungsten of thin granule Download PDFInfo
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- CN205575672U CN205575672U CN201620201942.0U CN201620201942U CN205575672U CN 205575672 U CN205575672 U CN 205575672U CN 201620201942 U CN201620201942 U CN 201620201942U CN 205575672 U CN205575672 U CN 205575672U
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- tungsten
- ammonium
- furnace
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- charging gear
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Abstract
The utility model discloses a preparation system of blue tungsten of thin granule, raw materials feeder's pay -off mouth connects gradually preliminary treatment stove, the play of ammonium tungsten compound feed bin, first sieving machine and ammonium tungsten compound feeder, ammonium tungsten compound feeder's pay -off mouth connects gradually forges burning furnace, blue tungsten play feed bin and second sieving machine, it is provided with the temperature band control area to forge burning furnace. The utility model discloses a preparation system that possesses a plurality of temperature band control areas prepares, through carrying out the preliminary treatment to raw materials APT, makes fine grain blue tungsten, compares with directly calcining APT, and the blue tungsten that this method made is thinner, and fine grain blue tungsten is favorable to producing fine grain tungsten powder, can strengthen tungsten base fine grain carbide's hardness, intensity and toughness.
Description
Technical field
This utility model relates to a kind of navy blue compound containing tungsten, particularly to the preparation system of a kind of fine grained indigo plant tungsten
System.
Background technology
Tungsten is the non-ferrous metal of a kind of infusibility, is also a kind of important strategic resource, because of its have that fusing point is high, hardness big,
The premium properties such as ductility is strong, wear-resisting and corrosion-resistant and be used widely.
Tungsten oxide is a kind of extremely important intermediate products in Chemical analysis field.In recent years, fine grained tungsten oxide is increasingly
Favored by user.As the tungsten powder of the downstream product of tungsten oxide, its granule size is largely by upstream product oxygen
Change the impact of tungsten, i.e. the granularity of tungsten oxide is the thinnest, then the tungsten powder particle-size that hydrogen reduction obtains is the thinnest.It was verified that thin tungsten powder
The properties of tungsten filament can be increased substantially, and the hardness of tungstenio fine grain hard alloy, intensity and toughness can be strengthened.
The most industrial fine grained tungsten oxide of preparing mainly has two kinds of methods: a kind of is to neutralize, with acid, the APT that technique produces
Preparing fine grained tungsten oxide for raw material, another kind is to prepare fine grained tungsten oxide with wolframic acid for raw material, the feature of both approaches
It is made by acid to realize rapid crystallization (or precipitation) and prepare fine grain presoma, but owing to employing acid, operating environment is poor, equipment
Seriously corroded；Waste water is high containing acid or ammonium salt, it is difficult to administer；And the impurity content of product is higher.
At present, the primary raw material producing tungsten oxide is APT (ammonium paratungstate), and evaporative crystallization technique is again that production APT is the heaviest
The method wanted, but evaporative crystallization technique more difficult control product granularity, be difficult to prepare thin brilliant APT, the most difficult prepares thin
The tungsten oxide product of grain.
Utility model content
The purpose of this utility model is to provide the preparation system of a kind of fine grained indigo plant tungsten, by improving the granularity of tungsten oxide,
Prepare fine grain tungsten powder, strengthen the hardness of tungstenio fine grain hard alloy, intensity and toughness.
For achieving the above object, this utility model is achieved through the following technical solutions:
A kind of preparation system of fine grained indigo plant tungsten, including raw material charging gear, preprocessing furnace, ammonium tungsten compound discharging bin,
First vibrating sieving machine, ammonium tungsten compound charging gear, calcining furnace, blue tungsten discharging bin and the second vibrating sieving machine, described raw material charging gear
Feeding port be connected with preprocessing furnace, ammonium tungsten compound discharging bin, the first vibrating sieving machine and ammonium tungsten compound charging gear in turn；Institute
The feeding port stating ammonium tungsten compound charging gear is sequentially connected with calcining furnace, blue tungsten discharging bin and the second vibrating sieving machine；Described pretreatment
Stove and calcining furnace are provided with temperature band control zone.
Preferably, described preprocessing furnace and calcining furnace are rotary furnace.
Preferably, described temperature band control zone is 3-6.
Preferably, described raw material charging gear and described ammonium tungsten compound charging gear are screw(-type) feeder.
Preferably, in described preprocessing furnace, dissociation temperature is 120 DEG C-300 DEG C.
Preferably, the feeding speed of described screw(-type) feeder is 100-300kg/h.
This utility model uses the preparation system possessing multiple temperature band control zone to be prepared, by entering raw material A PT
Row pretreatment, prepares fine grain blue tungsten, and compared with dinectly bruning APT, the blue tungsten that this method prepares is thinner, fine grain blue tungsten
Be conducive to producing fine grain tungsten powder, the hardness of tungstenio fine grain hard alloy, intensity and toughness can be strengthened.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of this utility model preparation system.
In figure: 1. raw material charging gear, 2. preprocessing furnace, 3. ammonium tungsten compound discharging bin, 4. the first vibrating sieving machine, 5. ammonium tungsten
Compound charging gear, 6. calcining furnace, 7. blue tungsten discharging bin, 8. the second vibrating sieving machine.
Detailed description of the invention
The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings.See Fig. 1, a kind of fine grained indigo plant tungsten
Preparation system, including raw material charging gear 1, preprocessing furnace 2, ammonium tungsten compound discharging bin the 3, first vibrating sieving machine 4, ammonium tungsten compound
Charging gear 5, calcining furnace 6, blue tungsten discharging bin 7 and the second vibrating sieving machine 8, the feeding port of described raw material charging gear 1 is sequentially connected with
Preprocessing furnace 2, ammonium tungsten compound discharging bin the 3, first vibrating sieving machine 4 and ammonium tungsten compound charging gear 5；Described ammonium tungsten compound is given
The feeding port of material device 5 is sequentially connected with calcining furnace 6, blue tungsten discharging bin 7 and the second vibrating sieving machine 8；Described preprocessing furnace 2 and calcining furnace
6 are respectively arranged with 3-6 temperature band control zone.The calcining of described calcining furnace 6 exists
The reducing atmosphere of 500-800 DEG C is carried out.Raw material charging gear 1 and described ammonium tungsten compound charging gear 5 are
Screw(-type) feeder.Screw(-type) feeder feeding speed is 100-300kg/h.
This utility model is prepared fine grained indigo plant tungsten and is comprised the following steps:
1) APT raw material is sent into preprocessing furnace 2 from raw material charging gear 1；
2) raw material is dissociated in oxidizing atmosphere by preprocessing furnace 2, and in preprocessing furnace 2 burner hearth, vacuum is (0.5-
1.3)×104Pa；
3) material after dissociation enters ammonium tungsten compound discharging bin 3, and cooled sieving obtains ammonium tungsten compound；
4) the ammonium tungsten compound after sieving is sent into calcining furnace 6 from ammonium tungsten compound charging gear 5, calcining furnace 6 burner hearth
Interior vacuum is (0.5-1.3) × 104Pa；
5) in the calcining furnace of 500 DEG C of-800 DEG C of reducing atmospheres, ammonium tungsten compound is calcined；
6) material after calcining enters blue tungsten discharging bin 7, carries out cooling and sieves and obtain fine grain blue tungsten.
Embodiment 1:
APT is inserted in raw material charging gear (feeding warehouse) 1, by raw material charging gear 1 (screw(-type) feeder) with
225kg/h is that speed sends into vacuum (0.5-0.8) × 104In the preprocessing furnace (rotary furnace) 2 of Pa, carry out aerobic dissociation, temperature
Degree control is: the temperature of the first to six band temperature controlled region is 240 DEG C.Sieve after rotary furnace dissociates, obtain ammonium tungsten compound.
Without the APT of dissociation and calcine at calcining furnace 6 the most at identical conditions through the APT (ammonium tungsten compound) of dissociation, obtain indigo plant
Tungsten.The blue tungsten particle size distribution that APT without dissociation and APT (ammonium tungsten compound) calcining through dissociation obtain is as follows:
Embodiment 2:
APT is inserted in raw material charging gear (feeding warehouse) 1, by raw material charging gear 1 (screw(-type) feeder) with
225kg/h is that speed sends into vacuum (0.8-1.1) × 104In the preprocessing furnace (rotary furnace) 2 of Pa, carry out aerobic dissociation, temperature
Degree control is: the temperature of first to multicolored vaginal discharge temperature controlled region is 230 DEG C, and the 6th band temperature controlled region is not heated.Dissociate through rotary furnace
After sieve, obtain ammonium tungsten compound.Without the APT of dissociation and the APT (ammonium tungsten compound) of process dissociation again in identical condition
Under calcine at calcining furnace 6, obtain blue tungsten.APT without dissociation and the APT (ammonium tungsten compound) through dissociation calcines the indigo plant obtained
Tungsten particle size distribution is as follows:
Embodiment 3:
APT is inserted in raw material charging gear (feeding warehouse) 1, by raw material charging gear 1 (screw(-type) feeder) with
200kg/h is that speed sends into vacuum (1.0-1.3) × 104In the preprocessing furnace (rotary furnace) 2 of Pa, carry out aerobic dissociation, temperature
Degree control is: the temperature of the first band temperature controlled region is 230 DEG C, and the second band does not heats, and the temperature of the 3rd to multicolored vaginal discharge temperature controlled region is
220 DEG C, the 6th band does not heats.Sieve after rotary furnace dissociates, obtain ammonium tungsten compound.Without dissociation APT and through from
The APT (ammonium tungsten compound) solved calcines at calcining furnace 6 the most at identical conditions, obtains blue tungsten.APT and process without dissociation
The blue tungsten particle size distribution that APT (ammonium tungsten compound) calcining of dissociation obtains is as follows:
Embodiment 4:
APT is inserted in raw material charging gear (feeding warehouse) 1, by raw material charging gear 1 (screw(-type) feeder) with
166kg/h is that speed sends into vacuum (0.8-1.1) × 104In the preprocessing furnace (rotary furnace) 2 of Pa, carry out aerobic dissociation, temperature
Degree control is: the temperature of the first to the 3rd band temperature controlled region is 240 DEG C, and the 4th to the 6th band does not heats.Dissociate through rotary furnace
After sieve, obtain ammonium tungsten compound.Without the APT of dissociation and the APT (ammonium tungsten compound) of process dissociation again in identical condition
Under calcine at calcining furnace 6, obtain blue tungsten.APT without dissociation and the APT (ammonium tungsten compound) through dissociation calcines the indigo plant obtained
Tungsten particle size distribution is as follows:
Claims (6)
1. a preparation system for fine grained indigo plant tungsten, including raw material charging gear, preprocessing furnace, ammonium tungsten compound discharging bin,
One vibrating sieving machine, ammonium tungsten compound charging gear, calcining furnace, blue tungsten discharging bin and the second vibrating sieving machine, described raw material charging gear
Feeding port is connected with preprocessing furnace, ammonium tungsten compound discharging bin, the first vibrating sieving machine and ammonium tungsten compound charging gear in turn；Described
The feeding port of ammonium tungsten compound charging gear is sequentially connected with calcining furnace, blue tungsten discharging bin and the second vibrating sieving machine；Described preprocessing furnace
It is provided with temperature band control zone with calcining furnace.
The preparation system of fine grained indigo plant tungsten the most according to claim 1, it is characterised in that described preprocessing furnace and calcining furnace
It is rotary furnace.
The preparation system of fine grained indigo plant tungsten the most according to claim 1, it is characterised in that described temperature band control zone is 3-
6.
The preparation system of fine grained indigo plant tungsten the most according to claim 1, it is characterised in that described raw material charging gear and institute
State ammonium tungsten compound charging gear and be screw(-type) feeder.
The preparation system of fine grained indigo plant tungsten the most according to claim 1, it is characterised in that in preprocessing furnace, dissociation temperature is
120℃-300℃。
The preparation system of fine grained indigo plant tungsten the most according to claim 4, it is characterised in that the feeding of described screw(-type) feeder
Speed is 100-300kg/h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620201942.0U CN205575672U (en) | 2016-03-16 | 2016-03-16 | Preparation system of blue tungsten of thin granule |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620201942.0U CN205575672U (en) | 2016-03-16 | 2016-03-16 | Preparation system of blue tungsten of thin granule |
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| Publication Number | Publication Date |
|---|---|
| CN205575672U true CN205575672U (en) | 2016-09-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620201942.0U Expired - Fee Related CN205575672U (en) | 2016-03-16 | 2016-03-16 | Preparation system of blue tungsten of thin granule |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105645473A (en) * | 2016-03-16 | 2016-06-08 | 江西稀有金属钨业控股集团有限公司 | Preparation system and method for blue tungsten with fine particles |
| CN111362305A (en) * | 2020-04-21 | 2020-07-03 | 赣州海创钨业有限公司 | Orange tungsten for uniform superfine tungsten powder and preparation method thereof |
-
2016
- 2016-03-16 CN CN201620201942.0U patent/CN205575672U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105645473A (en) * | 2016-03-16 | 2016-06-08 | 江西稀有金属钨业控股集团有限公司 | Preparation system and method for blue tungsten with fine particles |
| CN111362305A (en) * | 2020-04-21 | 2020-07-03 | 赣州海创钨业有限公司 | Orange tungsten for uniform superfine tungsten powder and preparation method thereof |
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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: 20220223 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: 20160914 |