CN201979092U - Loading boat for preparation of high-purity tungsten powder by hydrogen reduction - Google Patents
Loading boat for preparation of high-purity tungsten powder by hydrogen reduction Download PDFInfo
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- CN201979092U CN201979092U CN2011200634827U CN201120063482U CN201979092U CN 201979092 U CN201979092 U CN 201979092U CN 2011200634827 U CN2011200634827 U CN 2011200634827U CN 201120063482 U CN201120063482 U CN 201120063482U CN 201979092 U CN201979092 U CN 201979092U
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- drawer
- boat
- frame
- hydrogen reduction
- tungsten
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Abstract
The utility model discloses a loading boat for the preparation of high-purity tungsten powder by hydrogen reduction, which adopts a drawer type three-dimensional bilayer structure design, and consists of a drawer frame (1), an upper drawer box (6) and a lower drawer box (7), wherein the drawer frame (1) is formed by welding temperature-resistant and corrosion-resistant stainless steel plates; the three sides of the drawer frame (1) is of a half hollow shape, one side is of a completely hollow shape, a guide rail (3) is welded at the bottom of the drawer frame, and support frames (4) for supporting the upper drawer box (6) are arranged at the four corners of the drawer frame; and the upper drawer box (6) and the lower drawer box (7) are formed by welding rectangular pure tungsten boards of 99.95% of the same size. By the loading boat for the preparation of the high-purity tungsten powder by the hydrogen reduction, the pollution sources during the reduction is isolated; the high-purity quality of the tungsten powder is ensured; and high output efficiency and the operability of continuous production are achieved.
Description
Technical field
The utility model technology relates to a kind of charging boat, particularly relates to a kind of field of powder metallurgy hydrogen reduction and produces high purity tungsten charging boat.
Background technology
Design form and material as boat for reduction of W in the tungsten reduction process have a variety of in the industry.Traditional also is, and what to be most widely used is the square boat that adopts stainless steel material to make, and known novel boat design has the method that adopts nickel molybdenum rare earth alloy to make the W-Mo powder boat for reduction of W.The chemical composition of alloy is: (16～32) % molybdenum, and (0.05～0.15) % cerium, surplus is nickel.Adopt the alloy of this composition, melting under the nitrogen protection in power frequency or intermediate frequency furnace is the full form casting process of system shell binding agent with the silester, can produce Ni-Mo-rare-earth alloy boat for reduction of W-Mo powder.Also have and adopt other special nickel-base high temperature alloy precision casting boat.
In addition, utility model design by Xiamen Golden Egret Special Alloy Co., Ltd's application: a kind of double-deck boat of equal flow pattern that is used for the tungsten powder reduction, it comprises boat on, boat once, upper and lower boat constitutes by header board, back plate, biside plate, base plate, the header board of last boat is skewed and fixedly links with biside plate and base plate, the front portion of last boat biside plate slopes inwardly slightly, the bottom of last boat symmetry respectively is connected to preceding bearing, middle bearing, rear support, is equipped with mounting before, during and after it on the bearing; Also comprise on the preceding bearing being provided with " L " type front card, a wherein end of " L " type front card detachably relies on down the inwall of boat header board, and the front card lateral wall detachably is posted by down on the side plate inwall of boat; Rear support comprises also and is provided with back card/back board that the back card/back board lateral wall detachably is posted by down on the side plate inwall of boat.After adopting this structure, can realize that the air-flow of upper and lower boat inflow is identical, be implemented under the identical situation of charge, produce the tungsten powder of same granularity, can guarantee the stable of product physical property.
More than these boats that adopt the manufacturing of non-tungsten material when carrying tungsten raw material carries out hydrogen reduction, all can bring same problem, that allows impurity element enter in the material exactly, for the tungsten powder that quality of production grade is technical grade, the metal impurities of a little pollute and belong in the allowed band, can not have influence on product quality, for producing high-purity or even ultra-pure other tungsten powder of level, extremely Wei Liang contaminating impurity all should be avoided, therefore, in order to guarantee the high-purity of tungsten powder, need on the one hand to guarantee that the boat medium with the high purity tungsten raw material directly contacts should be the tungsten material equally; Mounting or support etc. can not be brought easily the part of extraneous contamination to place material frequently directly to contact with material among the boat on the other hand, just there is this problem in the design of above Xiamen Jin Lu company.Have only the problem that has solved this two aspect, could guarantee that the height of the raw material of whole reduction process and finished product is pure.In addition because the pure tungsten product material has crisp firmly, poor toughness, easy cracked shortcoming, can not directly bear huge thrust when pushing away boat, if be made into the thick double-deck boat of 3mm by pure tungsten material, the cost cost will rise tens times, also is worthless so all adopt pure tungsten material to make this device.
The utility model content
Technical problem to be solved in the utility model provides the pollution source in a kind of isolated when reduction, guarantees the high-purity quality of tungsten powder, realizes that the hydrogen reduction high and the quantity-produced operability of production capacity efficient produces high purity tungsten with the boat of feeding.
In order to solve the problems of the technologies described above, high purity tungsten charging boat is produced in the hydrogen reduction that the utility model provides, adopt the design of drawer type three-dimensional double-decker, by a drawer frame and a upper strata drawer case, lower floor's drawer case is formed, described drawer frame adopts heatproof corrosion-resistant stainless steel plate weldering system to form, the shape of partly leaving a blank is adopted in three sides of described drawer frame, a side is adopted and is all emptied shape, the bottom is welded with is convenient to push away the guide rail of resistance of reducing friction when boat advances in boiler tube, four jiaos are respectively equipped with the bracing frame that supports described upper strata drawer case, and described upper strata drawer case and lower floor's drawer case all adopt the pure tungsten plate weldering system of rectangular 99.95% content of same size to form.
The whole high 55mm of described drawer frame, long 400mm, wide 285mm.
Described upper strata drawer case and lower floor's drawer case adopt the thick pure tungsten plate weldering system of 1mm to form.
Described drawer frame adopts the thick heatproof corrosion-resistant stainless steel plate weldering system of 3mm to form.
Adopt the hydrogen reduction of technique scheme to produce high purity tungsten charging boat, produce in the high purity tungsten process of 99.99% and 99.999% grade in hydrogen reduction, can enhance productivity to 1.5～2 times of traditional approach, can guarantee that again the high purity tungsten raw material is not subjected to the pollution of other metal impurities in the reduction production process, thereby become important working condition and indispensable element that 99.999% ultra-pure tungsten powder is made in the realization industrialization, can also realize producing the characteristic of identical or different particle size range tungsten powder with the stove same process.The utility model adopts the drawer type double-decker, and whole load framework one drawer frame adopts stainless steel material to be welded, and can realize pushing away continuously the boat operation under the active force that pushes away the boat device; Adopt purity in the weldering of the pure tungsten sheet material more than 99.95% system with the charging boat one drawer box lumber matter that production material (comprising the various intermediate products of ammonium tungstate to tungsten powder) directly contacts, the drawer case is divided into two-layer up and down, can stablize and be positioned in the drawer frame, also can independently take out the loading and unloading material, easy to operate, avoided traditional stainless steel material boat in use because of being subjected to high temperature especially, friction reaches directly and contacts material and the influence of reasons such as chemical reaction process, and iron in the increase product, nickel, impurity contents such as chromium, this is to be avoided key one ring that takes place in the working condition of high purity tungsten.
Use the beneficial effect of the utility model device to be:
1, adopt double-deck charging design, utilization more effective, more science furnace inner space, saved production costs such as hydrogen, electric energy greatly, the double raising of the unit's of making production capacity.
2, adopt the drawer type design principle, make the workman easy and simple to handle, the loading and unloading material is aspect very also, and production efficiency is improved.
3, according to the difference of function, the drawer frame adopts different materials to make respectively with the drawer case, and the support that supports upper strata drawer case is to be fixed in four jiaos of drawer frame, be not the leg form that is placed in the material, these have promptly effectively avoided the contamination material, have guaranteed the quality of high purity tungsten, saved manufacturing cost again to greatest extent, can also make this device serviceability stable, fault rate is reduced to minimum, and service life is very long.
4, the hydrogen stream gap between this device levels drawer case is designed to highly consistent, and in pushing away boat displacement process, drawer case relative position is all fixed up and down, this amounts of hydrogen that just makes levels flow into is identical, thereby under identical temperature schedule, as long as realize that charge is identical, it is evenly consistent that the tungsten powder particle-size of levels drawer case output just can reach; The tungsten powder of output different grain size scope just can easily be realized as long as will adorn the change of drawer case amount if desired.This device makes: under same simultaneously batch with stove condition, producing equal or different equigranular tungsten powders all becomes possibility, allows production work bring into play greater flexibility, can satisfy the different demands of client to granularity simultaneously.
In sum, the utility model is compared with the above designing technique of having announced, have tangible two innovations: structure adopts the drawer type double layer design, package unit can easily be realized the difference in functionality state that makes up and split, both obviously improve production capacity efficient, realized the simplicity and the continuity of production operation again; Be positioned over again on the stainless drawer frame after adopting pure tungsten drawer case directly to load high-purity ammonium tungstate raw material, both avoided of the pollution of other drawer box material to tungsten powder, reduced drawer case cost cost again, make the reduction preparation process of high purity tungsten simpler, the unit use cost reduces greatly, the double raising of output efficiency, product quality is more stable.
Description of drawings
Fig. 1 is (stainless steel) of the present utility model drawer frame section construction figure;
Fig. 2 is (pure tungsten Noah's ark) of the present utility model drawer case section construction figure;
Fig. 3 is an entire combination stereogram of the present utility model.
The specific embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Referring to Fig. 1, Fig. 2 and Fig. 3, adopt the design of drawer type three-dimensional double-decker, by a drawer frame 1 and a upper strata drawer case 6, lower floor's drawer case 7 is formed, drawer frame 1 adopts the thick heatproof corrosion-resistant stainless steel plate weldering system of 3mm to form, the shape 2 of partly leaving a blank is adopted in three sides of drawer frame 1, a side is adopted and is all emptied shape 5, the bottom is welded with is convenient to push away the guide rail 3 of resistance of reducing friction when boat advances in boiler tube, four jiaos are respectively equipped with the bracing frame 4 that supports upper strata drawer case 6, drawer frame 1 whole high 55mm, long 400mm, wide 285mm, upper strata drawer case 6 and lower floor's drawer case 7 all adopt the pure tungsten plate weldering of 99.95% thick content of 1mm to make the rectangle that forms same size, by header board 9, back plate 12, right plate 8, left plate 10 and base plate 11 constitute.
Referring to Fig. 1, Fig. 2 and Fig. 3, drawer frame 1 adopts the corrosion-resistant stainless steel material to make, and its bottom is welded with guide rail 3, can reduce the frictional force that produces when pushing away boat in stove, and four fillet welding have bracing frame 4, and the material of two-layer drawer case carried out reduction reaction simultaneously about integral body can be carried; Upper strata drawer case 6 can directly take out, and 7 need of lower floor's drawer case pass in and out from whole shapes 5 of emptying of a side of drawer frame 1.Big low height unanimity is accomplished in air-flow space between the two-layer drawer case, like this, can produce the consistent tungsten powder of granularity under the condition of same reduction temperature and hydrogen flowing quantity.
During use, the charging step is: at first lower floor's drawer case 7 being weighed installs the ammonium tungstate raw material of desire reduction, the lower floor that inserts drawer frame 1 from that side of all emptying shape 5, be that upper strata drawer case 6 installs the upper strata that is positioned over drawer frame 1 behind the material then, again whole equipment is sent in the reduction furnace, promoted to advance by pushing away the boat device automatically.The discharging step is: the whole drawer type device of a cover is taken out in stove, take out earlier upper strata drawer case 6, unload tungsten powder, extract lower floor's drawer case 7 dischargings again out, finish and can repeat charging again after the discharging and recycle.
Claims (4)
1. high purity tungsten charging boat is produced in a hydrogen reduction, it is characterized in that: adopt the design of drawer type three-dimensional double-decker, by a drawer frame (1) and a upper strata drawer case (6), lower floor's drawer case (7) is formed, described drawer frame (1) adopts heatproof corrosion-resistant stainless steel plate weldering system to form, the shape (2) of partly leaving a blank is adopted in three sides of described drawer frame (1), a side is adopted and is all emptied shape (5), the bottom is welded with is convenient to push away the guide rail (3) of resistance of reducing friction when boat advances in boiler tube, four jiaos are respectively equipped with the bracing frame (4) that supports described upper strata drawer case (6), and described upper strata drawer case (6) and lower floor's drawer case (7) all adopt the pure tungsten plate weldering system of rectangular 99.95% content of same size to form.
2. hydrogen reduction according to claim 1 is produced high purity tungsten with the charging boat, it is characterized in that: the whole high 55mm of described drawer frame (1), long 400mm, wide 285mm.
3. high purity tungsten charging boat is produced in hydrogen reduction according to claim 1 and 2, it is characterized in that: described upper strata drawer case (6) and lower floor's drawer case (7) adopt the thick pure tungsten plate weldering system of 1mm to form.
4. high purity tungsten charging boat is produced in hydrogen reduction according to claim 1 and 2, it is characterized in that: described drawer frame (1) adopts the thick heatproof corrosion-resistant stainless steel plate weldering system of 3mm to form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200634827U CN201979092U (en) | 2011-03-11 | 2011-03-11 | Loading boat for preparation of high-purity tungsten powder by hydrogen reduction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200634827U CN201979092U (en) | 2011-03-11 | 2011-03-11 | Loading boat for preparation of high-purity tungsten powder by hydrogen reduction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201979092U true CN201979092U (en) | 2011-09-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200634827U Expired - Fee Related CN201979092U (en) | 2011-03-11 | 2011-03-11 | Loading boat for preparation of high-purity tungsten powder by hydrogen reduction |
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| CN (1) | CN201979092U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104439267A (en) * | 2014-12-17 | 2015-03-25 | 崇义章源钨业股份有限公司 | Material boat turnover material collection device |
| CN106825598A (en) * | 2016-12-27 | 2017-06-13 | 有研粉末新材料（北京）有限公司 | A kind of metal powder reduction method of superposed multi-layer material boat structure |
-
2011
- 2011-03-11 CN CN2011200634827U patent/CN201979092U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104439267A (en) * | 2014-12-17 | 2015-03-25 | 崇义章源钨业股份有限公司 | Material boat turnover material collection device |
| CN106825598A (en) * | 2016-12-27 | 2017-06-13 | 有研粉末新材料（北京）有限公司 | A kind of metal powder reduction method of superposed multi-layer material boat structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110921 Termination date: 20120311 |