CN206898397U - A kind of tungsten oxide hydrogen reducing system - Google Patents
A kind of tungsten oxide hydrogen reducing system Download PDFInfo
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- CN206898397U CN206898397U CN201720405834.XU CN201720405834U CN206898397U CN 206898397 U CN206898397 U CN 206898397U CN 201720405834 U CN201720405834 U CN 201720405834U CN 206898397 U CN206898397 U CN 206898397U
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- drying tower
- hydrogen
- tower
- tungsten oxide
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Abstract
The utility model discloses a kind of tungsten oxide hydrogen reducing system, including connecting the hydrogen circulation loop formed from beginning to end by assembly of reduction furnace, hydrogen_cooling dehydration device, drying device, described drying device includes four-way valve, the first cooler, the second cooler, the first drying tower, the second drying tower；It is equipped with heating unit in described the first drying tower and the second drying tower, is equipped with first gas interface in the tower wall of the first described drying tower and the second drying tower, second gas interface is equipped with the heating unit of the first described drying tower and the second drying tower.The purpose of this utility model is to provide a kind of tungsten oxide hydrogen reducing system, used valve need not be subjected to high temperature in the system, and critical valves are a four-way valve, the operation difficulty of worker can be effectively reduced, for conventional art, its equipment is relatively fewer, and cost of investment reduces.
Description
Technical field
Tungsten powder production equipment field is the utility model is related to, specially a kind of tungsten oxide hydrogen reducing system.
Background technology
Tungsten powder is produced by hydrogen reducing tungsten oxide in the prior art, such as《Tungsten oxide hydrogen reducing prepares ultrafine tungsten powder
Present Research》Guo Feng, Materials Science and Engineering of Powder Metallurgy, in August, 2007, the dew point of the particle diameter and hydrogen that describe tungsten powder are deposited
In close contact, when the dew point of hydrogen is less than -60 DEG C, produces nano-tungsten powder and be possibly realized.
In the art, produce and meet the hydrogen of above-mentioned requirements dew point and have become possibility, the scheme that it is used is most
As Fig. 1 describe, in Fig. 1 include be sequentially connected reduction furnace A, leaching device B, steam-water separator R, the first air blower C, first heat
Exchanger D, the first steam-water separator E, second heat exchanger F, the second steam-water separator G, two molecular sieve drying tower H in parallel
Head and the tail connection forms hydrogen reducing loop；Second heat exchanger F, as cooling agent, is additionally included using cooling driers X refrigerant
3rd heat exchanger I, the 3rd steam-water separator J, the second air blower K, heater L, two molecular sieve drying tower H head and the tail in parallel
The drying tower hydrogen circulation loop being connected to form；Between heater L, molecular sieve drying tower H and two molecular sieve drying tower H
Between must be provided with valve V to control a molecular sieve drying tower H at work, another molecular sieve drying tower H be in again
Raw state.
In order to realize the abundant dehydration regeneration of molecular sieve in molecular sieve drying tower H, hydrogen can be heated to hundreds of by heater L
DEG C, then the valve V set between heater L, molecular sieve drying tower H and between two molecular sieve drying tower H can be subjected to height
Temperature, after valve V uses a period of time, easily reveal, and the valve V for being related to high temperature in above-mentioned Fig. 1 at least needs six
Individual, this is relative complex for the operation of worker.
Utility model content
The purpose of this utility model is to provide a kind of tungsten oxide hydrogen reducing system, and used valve is equal in the system
High temperature need not be subjected to, and critical valves are a four-way valve, the operation difficulty of worker can be effectively reduced, compared to biography
For system technology, its equipment is relatively fewer, and cost of investment reduces.
To achieve the above object, the utility model provides following technical scheme：A kind of tungsten oxide hydrogen reducing system, including
The hydrogen circulation loop formed is connected by assembly of reduction furnace, hydrogen_cooling dehydration device, drying device from beginning to end, described dries dress
Put including four-way valve, the first cooler, the second cooler, the first drying tower, the second drying tower；The first described drying tower and
It is equipped with heating unit in two drying towers, being equipped with first gas in the tower wall of the first described drying tower and the second drying tower connects
Mouthful, it is equipped with second gas interface on the heating unit of the first described drying tower and the second drying tower；
First interface, the first cooler, the first gas interface of the first drying tower of described four-way valve are sequentially communicated；
Second interface, the second cooler, the first gas interface of the second drying tower of described four-way valve are sequentially communicated；
The 3rd interface and the 4th interface of described four-way valve are respectively connecting to the outlet of hydrogen_cooling dehydration device
And entrance；
The second gas interface of the first described drying tower, the second gas interface of the second drying tower, assembly of reduction furnace
Entrance three connects.
In above-mentioned tungsten oxide hydrogen reducing system, in addition to the hydrogen make dress for the hydrogen make-up into system
Put.
In above-mentioned tungsten oxide hydrogen reducing system, described hydrogen make device is connected to hydrogen_cooling dehydration device
On.
In above-mentioned tungsten oxide hydrogen reducing system, described hydrogen_cooling dehydration device includes the washing being sequentially connected
Tower, steam-water separator, the 3rd cooler, dry and cold machine, the entrance of described scrubbing tower and the outlet of assembly of reduction furnace, it is described
The outlet of dry and cold machine and the 3rd orifice of four-way valve, the entrance of described steam-water separator and the 4th of four-way valve the
Orifice.
In above-mentioned tungsten oxide hydrogen reducing system, described assembly of reduction furnace includes two reduction furnaces in parallel, institute
The second gas interface with the first drying tower, the second gas interface of the second drying tower connect the entrance for two reduction furnaces stated respectively
Logical, the outlet of two described reduction furnaces connects with hydrogen_cooling dehydration device respectively.
In above-mentioned tungsten oxide hydrogen reducing system, the outlet of reduction furnace and entrance are equipped with valve.
In above-mentioned tungsten oxide hydrogen reducing system, the second gas interface of the first described drying tower, second are dried
Flow control valve is equipped with the second gas interface of tower.
Compared with prior art, the beneficial effects of the utility model are：The utility model it is creative by heating unit collection
Into into drying tower, and need not be set between the first drying tower and the first cooler, between the second drying tower and the second cooler
Valve is put, so avoids influence of the high-temperature hydrogen to valve；The utility model is by a four-way valve and to pipeline
Reasonable reformation, the purpose that the drying tower of Valve controlling first, second drying tower switch between each other is realized, makes operation more
Simplify, while number of devices of the present utility model is reduced, and reduces system investments.
Brief description of the drawings
Fig. 1 is the flow chart of background technology of the present utility model；
Fig. 2 is the flow chart under a kind of working condition of embodiment of the present utility model；
Fig. 3 is the flow chart under another working condition of embodiment of the present utility model.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
Embodiment 1
Refer to Fig. 2 and 3, a kind of tungsten oxide hydrogen reducing system provided by the utility model, including by assembly of reduction furnace
3rd, hydrogen_cooling dehydration device 2, drying device 1 connect the hydrogen circulation loop of formation from beginning to end, and described drying device 1 includes four
Port valve 11, the first cooler 12, the second cooler 13, the first drying tower 14, the second drying tower 15；The first described drying tower 14
Be equipped with heating unit 16 in the second drying tower 15, be all provided with the tower wall of the first described drying tower 14 and the second drying tower 15
There is a first gas interface 17, second gas is equipped with the heating unit 16 of the first described drying tower 14 and the second drying tower 15
Interface 18；Heating unit 16 can typically select to be generally located on the center of drying tower for electrical heating wire, heating unit 16.
First interface 11A, the first cooler 12, the first gas interface of the first drying tower 14 of described four-way valve 11
17 are sequentially communicated；
Second interface 11B, the second cooler 13, the first gas interface of the second drying tower 15 of described four-way valve 11
17 are sequentially communicated；
The 3rd interface 11C and the 4th interface 11D of described four-way valve 11 is respectively connecting to hydrogen_cooling dehydration dress
Put 2 outlet and entrance；
The second gas interface 18 of the first described drying tower 14, the second gas interface 18 of the second drying tower 15, reduction
The entrance three connection of furnace apparatus 3.
In the course of work of reality, four-way valve 11 can be in two states：
Such as Fig. 3, when the first drying tower 14 regenerates, the work of the second drying tower 15 when, first interface 11A of four-way valve 11,
4th interface 11D connection, the first drying tower 14 regenerate the high hydrogen of caused moisture content and pass through the first cooler 12, four-way valve
11 enter the entrance of hydrogen_cooling dehydration device 2；Second interface 11B and the 3rd interface 11C connections of four-way valve 11, the
Two drying towers 15 are conveyed after the hydrogen to come carries out absorbent drying to hydrogen_cooling dehydration device 2 and are transported in assembly of reduction furnace 3
To dried medium (such as silica gel or molecule in the first drying tower 14 in the heating unit 16 of restoring tungsten oxide and the first drying tower 14
Sieve) regenerated.
In the process, high-temperature hydrogen can be present in the cooler 12 of first gas interface 17 and first of the first drying tower 14
Between pipeline in, the pipeline need not set any valve, therefore the system of the present embodiment is not in any high temperature
Cause the risk of valve leaks.
Similarly, such as Fig. 2, when the second drying tower 15 regenerates, the work of the first drying tower 14 when, it is necessary to by four-way valve 11 second
Individual interface 11B, the 4th interface 11D connection；First interface 11A and the 3rd interface 11C connections of four-way valve 11 simultaneously, this
Sample can realizes the conversion of drying tower mode of operation, and its operation principle is with reference to above.
In the present embodiment, the amount of hydrogen can clearly reduce after the reduction of reduction furnace 31, in order to avoid hydrogen in system
Atmospheric pressure deficiency, the system also include the hydrogen make device 4 for being used for the hydrogen make-up into system, described hydrogen make device
4 are connected in hydrogen_cooling dehydration device 2, and its specific set location does not have strict limitation.
Specific in the present embodiment, described hydrogen_cooling dehydration device 2 includes scrubbing tower 21, the carbonated drink point being sequentially connected
From device 22, the 3rd cooler 23, dry and cold machine 24, the entrance of described scrubbing tower 21 and the outlet of assembly of reduction furnace 3 are described
The outlet of dry and cold machine 24 connected with the 3rd interface 11C of four-way valve 11, the entrance and four-way of described steam-water separator 22
The 4th interface 11D connections of valve 11.
The entrance of the steam-water separator 22 of the present embodiment can be understood as the entrance of hydrogen_cooling dehydration device 2 above,
If in actual production the high hydrogen of moisture content caused by dried medium regeneration export into scrubbing tower 21 not cannot, simply
By hydrogen caused by regeneration and powder impurity is not contained, for simplicity the entrance of hydrogen_cooling dehydration device 2 is preferably
The entrance of steam-water separator 22.
In the present embodiment, described assembly of reduction furnace 3 includes two reduction furnaces 31 in parallel, described two reduction furnaces
The second gas interface 18 with the first drying tower 14, the second gas interface 18 of the second drying tower 15 connect 31 entrance respectively,
The outlet of two described reduction furnaces 31 is connected with hydrogen_cooling dehydration device 2 respectively, and the outlet of reduction furnace 31 and entrance are all provided with
There is valve.
The in parallel of two reduction furnaces 31 is intended that a reduction furnace 31 works, and another reduction furnace 31 is standby.
In order to improve the ratio of reduction hydrogen and regeneration hydrogen, the second gas interface of the first described drying tower 14
18th, it is equipped with flow control valve 19 on the second gas interface 18 of the second drying tower 15；Such as when the first drying tower 14 regenerates,
When second drying tower 15 works, by controlling flow control valve 19, the heating unit 16 that can adjust first drying tower 14 enters
Tolerance, and then ensure the pressure of hydrogen in drying oven.Therefore it is necessary, can drying oven entrance set pressure sensor or
Pressure gauge, for the regulation of the aperture of flow control valve 19.
Advantage of this embodiment is that heating unit 16 is integrated into drying tower, and the first drying tower 14 and first
Valve need not be set between cooler 12, between the second drying tower 15 and the second cooler 13, so avoid high-temperature hydrogen
Influence to valve；The utility model realizes a valve control by a four-way valve 11 and to the reasonable reformation of pipeline
Make the first drying tower 14, the purpose that the second drying tower 15 switches between each other, make operation more simplified, at the same it is of the present utility model
Number of devices is reduced, and reduces system investments.
It is obvious to a person skilled in the art that the utility model is not limited to the details of above-mentioned one exemplary embodiment, and
And in the case of without departing substantially from spirit or essential attributes of the present utility model, it can realize that this practicality is new in other specific forms
Type.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and is nonrestrictive, this practicality is new
The scope of type limits by appended claims rather than described above, it is intended that the equivalency fallen in claim is contained
All changes in justice and scope are included in the utility model.Any reference in claim should not be considered as limitation
Involved claim.
Claims (7)
1. a kind of tungsten oxide hydrogen reducing system, including connected by assembly of reduction furnace, hydrogen_cooling dehydration device, drying device head and the tail
Connect the hydrogen circulation loop to be formed, it is characterised in that：Described drying device includes four-way valve, the first cooler, the second cooling
Device, the first drying tower, the second drying tower；Heating unit is equipped with described the first drying tower and the second drying tower, it is described
First gas interface, described the first drying tower and the second drying tower are equipped with the tower wall of first drying tower and the second drying tower
Heating unit on be equipped with second gas interface；
First interface, the first cooler, the first gas interface of the first drying tower of described four-way valve are sequentially communicated；
Second interface, the second cooler, the first gas interface of the second drying tower of described four-way valve are sequentially communicated；
The 3rd interface and the 4th interface of described four-way valve are respectively connecting to the outlet of hydrogen_cooling dehydration device and entered
Mouthful；
The second gas interface of the first described drying tower, the second gas interface of the second drying tower, the entrance of assembly of reduction furnace
Three connects.
2. tungsten oxide hydrogen reducing system according to claim 1, it is characterised in that also include being used to supplement into system
The hydrogen make device of hydrogen.
3. tungsten oxide hydrogen reducing system according to claim 2, it is characterised in that described hydrogen make device connection
In hydrogen_cooling dehydration device.
4. tungsten oxide hydrogen reducing system according to claim 1, it is characterised in that described hydrogen_cooling dehydration device
Including scrubbing tower, steam-water separator, the 3rd cooler, the dry and cold machine being sequentially connected, the entrance and reduction furnace of described scrubbing tower
The outlet of device, the outlet of described dry and cold machine and the 3rd of four-way valve the orifice, described steam-water separator
4th orifice of entrance and four-way valve.
5. tungsten oxide hydrogen reducing system according to claim 1, it is characterised in that described assembly of reduction furnace is included simultaneously
Two reduction furnaces of connection, the entrance of described two reduction furnaces respectively dry by the second gas interface with the first drying tower, second
The second gas orifice of tower, the outlet of described two reduction furnaces connect with hydrogen_cooling dehydration device respectively.
6. tungsten oxide hydrogen reducing system according to claim 5, it is characterised in that the outlet of reduction furnace and entrance are all provided with
There is valve.
7. tungsten oxide hydrogen reducing system according to any one of claims 1 to 6, it is characterised in that described first is dried
Flow control valve is equipped with the second gas interface of tower, the second gas interface of the second drying tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720405834.XU CN206898397U (en) | 2017-04-17 | 2017-04-17 | A kind of tungsten oxide hydrogen reducing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720405834.XU CN206898397U (en) | 2017-04-17 | 2017-04-17 | A kind of tungsten oxide hydrogen reducing system |
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| Publication Number | Publication Date |
|---|---|
| CN206898397U true CN206898397U (en) | 2018-01-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720405834.XU Withdrawn - After Issue CN206898397U (en) | 2017-04-17 | 2017-04-17 | A kind of tungsten oxide hydrogen reducing system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107199348A (en) * | 2017-04-17 | 2017-09-26 | 河源普益硬质合金厂有限公司 | A kind of tungsten oxide hydrogen reducing system |
-
2017
- 2017-04-17 CN CN201720405834.XU patent/CN206898397U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107199348A (en) * | 2017-04-17 | 2017-09-26 | 河源普益硬质合金厂有限公司 | A kind of tungsten oxide hydrogen reducing system |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180119 Effective date of abandoning: 20230630 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20180119 Effective date of abandoning: 20230630 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |