CN108036639A - Reducing furnace system - Google Patents
Reducing furnace system Download PDFInfo
- Publication number
- CN108036639A CN108036639A CN201810032090.0A CN201810032090A CN108036639A CN 108036639 A CN108036639 A CN 108036639A CN 201810032090 A CN201810032090 A CN 201810032090A CN 108036639 A CN108036639 A CN 108036639A
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- China
- Prior art keywords
- boat
- pipeline section
- accommodating
- boiler tube
- heating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000010438 heat treatment Methods 0.000 claims abstract description 89
- 230000007246 mechanism Effects 0.000 claims abstract description 52
- 239000002184 metal Substances 0.000 claims abstract description 33
- 229910052751 metal Inorganic materials 0.000 claims abstract description 33
- 229910044991 metal oxide Inorganic materials 0.000 claims abstract description 21
- 150000004706 metal oxides Chemical class 0.000 claims abstract description 21
- 239000000463 material Substances 0.000 claims description 30
- 125000004122 cyclic group Chemical group 0.000 claims description 25
- 230000008520 organization Effects 0.000 claims description 17
- 230000005674 electromagnetic induction Effects 0.000 claims description 14
- 230000007723 transport mechanism Effects 0.000 claims description 8
- 238000003860 storage Methods 0.000 claims description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 229910002804 graphite Inorganic materials 0.000 claims description 5
- 239000010439 graphite Substances 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims 1
- 239000004575 stone Substances 0.000 claims 1
- 241001062472 Stokellia anisodon Species 0.000 abstract description 5
- 239000007789 gas Substances 0.000 description 28
- 238000006722 reduction reaction Methods 0.000 description 19
- 230000009467 reduction Effects 0.000 description 12
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 9
- 238000000034 method Methods 0.000 description 9
- YBMRDBCBODYGJE-UHFFFAOYSA-N germanium dioxide Chemical compound O=[Ge]=O YBMRDBCBODYGJE-UHFFFAOYSA-N 0.000 description 8
- 230000008569 process Effects 0.000 description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 7
- 238000001816 cooling Methods 0.000 description 6
- 239000010453 quartz Substances 0.000 description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 5
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 5
- 229910052802 copper Inorganic materials 0.000 description 5
- 239000010949 copper Substances 0.000 description 5
- 239000001257 hydrogen Substances 0.000 description 5
- 229910052739 hydrogen Inorganic materials 0.000 description 5
- 230000032258 transport Effects 0.000 description 5
- 238000010304 firing Methods 0.000 description 4
- 229910052732 germanium Inorganic materials 0.000 description 4
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 4
- 229940119177 germanium dioxide Drugs 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000003723 Smelting Methods 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 230000010354 integration Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000011946 reduction process Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007770 graphite material Substances 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000012840 feeding operation Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/04—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity adapted for treating the charge in vacuum or special atmosphere
- F27B9/045—Furnaces with controlled atmosphere
- F27B9/047—Furnaces with controlled atmosphere the atmosphere consisting of protective gases
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/06—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity heated without contact between combustion gases and charge; electrically heated
- F27B9/062—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity heated without contact between combustion gases and charge; electrically heated electrically heated
- F27B9/067—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity heated without contact between combustion gases and charge; electrically heated electrically heated heated by induction
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
- F27B9/20—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace
- F27B9/26—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace on or in trucks, sleds, or containers
- F27B9/262—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace on or in trucks, sleds, or containers on or in trucks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
- F27B9/3005—Details, accessories, or equipment peculiar to furnaces of these types arrangements for circulating gases
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
- F27B9/36—Arrangements of heating devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
- F27B9/38—Arrangements of devices for charging
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
- F27B9/39—Arrangements of devices for discharging
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
- F27B9/40—Arrangements of controlling or monitoring devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
- F27B9/3005—Details, accessories, or equipment peculiar to furnaces of these types arrangements for circulating gases
- F27B2009/3027—Use of registers, partitions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
- F27B9/38—Arrangements of devices for charging
- F27B2009/382—Charging
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
- F27B9/38—Arrangements of devices for charging
- F27B2009/384—Discharging
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27M—INDEXING SCHEME RELATING TO ASPECTS OF THE CHARGES OR FURNACES, KILNS, OVENS OR RETORTS
- F27M2003/00—Type of treatment of the charge
- F27M2003/16—Treatment involving a chemical reaction
- F27M2003/165—Reduction
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The present invention relates to a kind of reducing furnace system, including boiler tube, heating structure, driving mechanism and the accommodating boat for housing metal oxide to be restored, the boiler tube includes the heating pipeline section being connected with each other and goes out boat pipeline section, the heating arrangements are sheathed on the heating pipeline section, the accommodating boat is at least two and can be in the stove in-pipe, the accommodating boat in the boiler tube is arranged successively along the axial direction of the boiler tube, the driving mechanism is used to successively push the accommodating boat in the heating pipeline section to, the accommodating boat in the heating pipeline section goes out in boat pipeline section described in being moved to successively under the promotion of another adjacent accommodating boat.There is metal oxide to be restored in the heating pipeline section always, the heating arrangements improve the overall energy utilization rate of the reducing furnace system, while also improve the efficiency of metal smelt without continually break-make.
Description
Technical field
The present invention relates to metal smelt technical field, more particularly to a kind of reducing furnace system.
Background technology
In nature, most metal is existed in the form of metal oxide.Therefore, the reduction of metal oxide is
One of important process during metal smelt.But the metal oxygen to be restored in widely used reduction furnace on the market at present
Compound is usually that heating reduction and cooled and solidified are carried out on fixed response location, and reduction furnace needs frequent in this process
Ground heats up and cooling, wastes the substantial amounts of energy, does not meet the requirement of energy-saving and emission-reduction.
The content of the invention
Based on this, it is necessary to the problem of for the energy utilization rate for how improving reducing furnace system, there is provided a kind of reduction furnace
System.
Its technical solution is as follows：
A kind of reducing furnace system, including boiler tube, heating structure, driving mechanism and for housing metal oxide to be restored
Accommodating boat, the boiler tube, which includes being connected with each other heating, pipeline section and goes out boat pipeline section, and the heating arrangements are sheathed on the heating tube
Duan Shang, the accommodating boat are at least two and can be on the stove in-pipe, the accommodating boat edges in the boiler tube
The axial direction for the boiler tube is arranged successively, and the driving mechanism is used to successively push the accommodating boat in the heating pipeline section to,
The accommodating boat in the heating pipeline section is moved to described successively under the promotion of another adjacent accommodating boat
Go out in boat pipeline section.
Since the accommodating boat in the boiler tube is arranged along the axial direction of the boiler tube successively, therefore can be by described in control
The heating-up temperature of heating structure and heating time so that the metal oxide in the accommodating boat, which utilizes, passes through the heating pipeline section
Time complete reduction reaction, and be moved to successively under the promotion of its another adjacent accommodating boat it is described go out boat pipeline section
Inside cooled down, also so that having metal oxide to be restored in the boiler tube always, the heating arrangements are without continually leading to
It is disconnected, whole reduction process is carried out continuously, improves the overall energy utilization rate of the reducing furnace system.Working as at the same time has an appearance
Put boat and carry metal oxide when heating progress reduction reaction in pipeline section, while just there is another accommodating boat to carry metal
Cooled down going out in boat pipeline section, heating reduction is carried out at the same time with two processes of cooled and solidified, improves the efficiency of metal smelt.
In one of the embodiments, the driving mechanism is used to the accommodating boat being pushed into pre- in the heating pipeline section
If position, the predeterminated position positioned at the heating pipeline section away from it is described go out boat pipeline section one end, when the driving mechanism is by one
When in a accommodating boat push-in heating pipeline section, another described accommodating boat removes from the heating pipeline section and described in entering
Go out in boat pipeline section.When an accommodating boat, which transports metal oxide to be restored, enters the predeterminated position of the heating pipeline section,
Another accommodating boat is transported to have reduced complete metal and enter boat pipeline section from heating pipeline section and cooled down at the same time so that described
Heat in pipeline section always full of accommodating boat, improve the space availability ratio of the heating pipeline section, also improve whole reduction furnace system
The energy utilization rate of system.
In one of the embodiments, at least two storage tanks, at least two storage tank are equipped with the accommodating boat
Arragement direction perpendicular to the accommodating boat moving direction, so as to improve the energy that each accommodating boat transports metal oxide
Power, improves the reduction efficiency of the reducing furnace system, while also saves the energy.
In one of the embodiments, the reducing furnace system further includes cyclic track, the both ends point of the cyclic track
Both ends not with the boiler tube are docked, and the cyclic track is equipped with transport mechanism, positioned at it is described go out boat pipeline section in the appearance
One end of the cyclic track can be entered under the promotion of another adjacent accommodating boat by putting boat, afterwards in the conveyer
The other end of the cyclic track is moved under the conveying of structure.The cyclic track can realize the auto recycling of accommodating boat,
Production cost is reduced, the transfer of accommodating boat can be completed without human intervention, improve the automatic of the metal reducing and smelting process
Change degree.
In one of the embodiments, the cyclic track close to it is described go out boat pipeline section one end be additionally provided with material fetching mechanism,
The material fetching mechanism is used to capture the reducing metal in the accommodating boat, and the cyclic track heats the one of pipeline section close to described
End is equipped with charge mechanism, and the charge mechanism is used to metal oxide to be restored being positioned in the accommodating boat.The appearance
Put boat and carry out feeding in material fetching mechanism, after unloading metal product, can continue to load metal oxygen to be restored in charge mechanism
Compound, the accommodating boat can recycle, the automation of whole system
In one of the embodiments, the material fetching mechanism is gripper or sucker.In the accommodating boat of gripper crawl
Metal product or the sucker draw metal product in accommodating boat, feed again easy to the accommodating boat.
In one of the embodiments, the reducing furnace system further includes into boat inductor and goes out boat inductor, it is described into
Boat inductor is arranged between the charge mechanism and the heating pipeline section, described to sense that the accommodating boat passes through into boat inductor
When, the driving mechanism starts to act, it is described go out boat inductor be arranged on it is described go out between boat pipeline section and the material fetching mechanism, it is described
When going out boat inductor and sensing that the accommodating boat passes through, the material fetching mechanism starts to act.The setting can improve the reduction furnace
The degree of automation of system, enables the timely feeding of the material fetching mechanism, and accommodating boat can be sent into and heat by the driving mechanism in time
Pipeline section, improves the continuity and work efficiency of whole production procedure.
In one of the embodiments, the reducing furnace system further includes first gas organization of supply, the first gas
The outlet side of organization of supply is connected with the boiler tube, for being blown into reducing gas into the boiler tube, so as to be formed in boiler tube
Reducing atmosphere, the metal oxide for making to enter in boiler tube are reduced into metal, can also completely cut off extraneous air so that reduce completion
Metal will not be further oxided.
In one of the embodiments, the reducing furnace system further includes into boat fire door and goes out boat fire door, and the boiler tube is set
Have positioned at it is described heating pipeline section on feed inlet and positioned at it is described go out boat pipeline section on discharge port, it is described into boat fire door be used for control
At the feed inlet or the boiler tube feed side, it is described go out boat fire door be used to control going out for the discharge outlet or the boiler tube
Expect side, it is described into boat fire door and it is described go out boat fire door be equipped with second gas organization of supply, when described into boat fire door or described
Go out boat it is door opened when, the second gas organization of supply is used to form protection gas curtain in the feed inlet or the discharge port.
The setting can prevent the metal that outside air enters in boiler tube internal oxidition boiler tube, keep the reducing atmosphere in boiler tube.
In one of the embodiments, the heating pipeline section includes at least two section unit pipes, the adjacent two section units
It is tightly connected between pipe.When one section unit pipes damage when, other unit pipes still can normal use, without whole boiler tube replace, from
And easy to the maintenance and replacement of heating tube, reduce cost of equipment maintenance.
In one of the embodiments, the material of the boiler tube is quartz；The material of the accommodating boat is graphite；It is described to add
Heat structure is electromagnetic induction coil.The boiler tube uses quartz material, and good heat conductivity, hardness is high, and chemical property is stablized, and is not easy
React with metal.The accommodating boat uses graphite material, and good heat conductivity, is not easy to occur with metal under reducing atmosphere anti-
Should.Moreover, quartz and the material that graphite is surface smoother, are slided easy to accommodating boat in boiler tube.Using electromagnetic induction
Coil heats are safe and reliable, and firing rate is fast, and energy utilization rate is high, and environmentally safe.
Brief description of the drawings
Fig. 1 is the structure diagram of the reducing furnace system described in the embodiment of the present invention；
Fig. 2 is the A-A sectional views of Fig. 1；
Fig. 3 is the structure diagram of the reducing furnace system described in an alternative embodiment of the invention；
The structure diagram for the furnace tubing that Fig. 4 is；
Fig. 5 is the B-B sectional views of Fig. 4.
Description of reference numerals：
100th, furnace foundation frame, 110, upper backup pad, 120, support column, 140, go out boat pipe supporting rack, 150, lower supporting plate, 200,
Boiler tube, 210, heating pipeline section, 211, into boat section, 212, bringing-up section, 220, go out boat pipeline section, 221, cooling jacket, 240, fireguard,
250th, feed inlet, 260, discharge port, 310, electromagnetic induction coil, 400, accommodating boat, 410, storage tank, 500, push away boat case, 511,
Second push rod, the 512, second push rod isolation cover, the 520, first push rod, 610, into boat fire door, 620, go out boat fire door, 700, circulation rail
Road, 710, gripper, 720, charge mechanism, 730, conveyer belt, 800, hang plate, 910, into boat inductor, 920, go out boat sensing
Device.
Embodiment
For the objects, technical solutions and advantages of the present invention are more clearly understood, below in conjunction with attached drawing and specific embodiment party
Formula, is described in further detail the present invention.It should be appreciated that the specific embodiments described herein are only solving
The present invention is released, does not limit protection scope of the present invention.
It should be noted that when element is referred to as " being fixed on " another element, it can be directly on another element
Or there may also be element placed in the middle.When an element is considered as " connection " another element, it can be directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
For illustrative purposes only, it is unique embodiment to be not offered as " right side " and similar statement.
Unless otherwise defined, all of technologies and scientific terms used here by the article is with belonging to technical field of the invention
The normally understood implication of technical staff is identical.Term used in the description of the invention herein is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term as used herein " and/or " include one or more
The arbitrary and all combination of relevant Listed Items.
As shown in Figure 1, the embodiment of the present invention proposes a kind of reducing furnace system, including boiler tube 200, heating structure, driving machine
Structure and the accommodating boat 400 for housing metal oxide to be restored, the boiler tube 200 include the heating pipeline section being connected with each other
210 and go out boat pipeline section 220, the heating arrangements are sheathed on the heating pipeline section 210, and the accommodating boat 400 is at least two
And it can be moved in the boiler tube 200, axis of the accommodating boat 400 along the boiler tube 200 in the boiler tube 200
To arranging successively, the driving mechanism is used to successively push the accommodating boat 400 in the heating pipeline section 210 to, positioned at described
The accommodating boat 400 in heating pipeline section 210 is moved to described successively under the promotion of another adjacent accommodating boat 400
Go out in boat pipeline section 220.
Since the accommodating boat 200 in the boiler tube 400 is arranged along the axial direction of the boiler tube 400 successively, therefore can lead to
Spend the heating-up temperature for controlling the heating structure and heating time so that the metal oxide in the accommodating boat 400 utilizes warp
The time for crossing the heating pipeline section 210 completes reduction reaction, and the land under the promotion of its another adjacent accommodating boat 400
Continue to go out in boat pipeline section 220 described in being moved to and cooled down so that there is metal oxide to be restored always in the boiler tube 400,
The heating arrangements 310 are carried out continuously whole reduction process, improve the whole of the reducing furnace system without continually break-make
Physical efficiency source utilization rate.At the same time when there is an accommodating boat to carry metal oxide progress reduction reaction in heating pipeline section, together
When just there is another accommodating boat to carry metal to go out in boat pipeline section to be cooled down, heating reduction is same with two processes of cooled and solidified
Shi Jinhang, improves the efficiency of metal smelt.
Further, the accommodating boat 400 is pushed into the predeterminated position in the heating pipeline section 210 by the driving mechanism,
The predeterminated position goes out one end of boat pipeline section 220 positioned at the heating pipeline section 210 away from described in, when the driving mechanism is by one
When the accommodating boat 400 is pushed into the heating pipeline section 210, another described accommodating boat 400 is removed from the heating pipeline section 210
And go out described in entering in boat pipeline section 220.Enter the heating tube when an accommodating boat 400 transports metal oxide to be restored
During the predeterminated position of section 210, while another accommodating boat 400 transports and has reduced complete metal and enter from heating pipeline section 210
Go out boat pipeline section 220 to be cooled down so that always full of accommodating boat 400 in the heating pipeline section 210, improve the heating pipeline section
210 space availability ratio, also improves the energy utilization rate of whole reducing furnace system.
Specifically, the heating pipeline section 210 is included into boat section 211 and bringing-up section 212, it is described be arranged on into boat section 211 it is described
Heat one end that pipeline section 210 goes out boat pipeline section 220 away from described in.
In the present embodiment, the driving mechanism includes the first push rod 520 and the second push rod 511.First push rod 520
In the side of first push rod 520 and its pushing direction and second push rod 511 it is perpendicular.First push rod 520 is used
In will positioned at the lateral push-in place opposite with feed inlet 250 of the accommodating boat 400 of 200 side of boiler tube, afterwards described second
Push rod 511 promotes accommodating boat 400 to make it promote adjacent accommodating boat 400 to move to the predeterminated position of heating pipeline section 210 again, with
This analogizes, finally by near it is described go out boat pipeline section 220 accommodating boat 400 be pushed into out in boat pipeline section 220, realize reducing furnace system
Charging and draw operation.Using the first push rod 520 and the second push rod 511 as driving mechanism, simple in structure, energy consumption is smaller.
In the present embodiment, second push rod 511 is externally provided with the second push rod protective cover 512.In the present embodiment, first push rod 520
It can be driven with second push rod 511 by motor or cylinder.
As shown in Figure 1, in the present embodiment, the reducing furnace system, which further includes, pushes away boat case 500, and the boat case 500 that pushes away is arranged on
At the feed inlet 250 of the boiler tube 200, described push away is equipped with accommodating cavity in boat case 500, the accommodating cavity and the feed inlet 250
It is connected.One end of second push rod 511 can stretch into the accommodating cavity and opposite with the feed inlet 250, the first push rod
520 one end can be stretched into the accommodating cavity and perpendicular with second push rod 511.The lateral thruster 520 is arranged on described
Push away the side of boat case 500.
Specifically, the reducing furnace system further includes first gas organization of supply, and the first gas organization of supply goes out
Gas end is connected with the boiler tube 200, and the first gas organization of supply is used to be blown into reducibility gas into the boiler tube 200.
In the present embodiment, the reducibility gas is hydrogen.The first gas Supply Structure can also be blown into the boiler tube 200
Nitrogen.Before the reducing furnace system starts, nitrogen first is blown into the boiler tube 200, the residual air in boiler tube 200 is blown
Walk, hydrogen is then blown into the boiler tube 200 and carries out reduction reaction.When the reducing furnace system is closed, again to boiler tube 200
Nitrogen is inside blown into, remaining hydrogen purge is clean.The setting can prevent hydrogen from exploding with air mixing.Described first
Gas Supply Structure controls the flow of hydrogen and nitrogen by way of shunting.
Further, as shown in Figure 1, the reducing furnace system further includes furnace foundation frame 100, the furnace foundation frame 100 is arranged on institute
State the bottom of boiler tube 200.In the present embodiment, the stove rack includes upper backup pad 110, lower supporting plate 150 and support column 120,
The both ends of the support column 120 are connected with the upper backup pad 110 and the lower supporting plate 150 respectively, and the boiler tube 200 is laid with
In the one side that the upper backup pad 110 is opposite with the support column 120.In the present embodiment, the upper backup pad 110 and it is described under
Support plate 150 uses S304 stainless steel plates, and the support column 120 is welded by 140# channel steels and 80# angle steel.The upper branch
Fagging 110 is equipped with the limiting slot for being used for fixing the heating structure, so as to prevent the heating structure from shifting.
Specifically, the heating pipeline section 210 is layed on the furnace foundation frame 100.In the present embodiment, boat pipe branch is further included out
Support 140, it is described go out boat pipeline section 220 be set up in it is described go out boat pipe supporting rack 140 on.The heating pipeline section 210 is used to make metal
Oxide is reduced into metal and melts, it is described go out boat pipeline section 220 be used for molten metal is cooled into ingot.The heating
Pipeline section 210 and it is described go out boat pipeline section 220 between be equipped with fireguard 220, the fireguard 220 is used to prevent in heating pipeline section 210
High-temperature gas enter boat pipeline section 220, influence the cooling of metal.It is described go out boat pipeline section 200 on can be arranged cooling jacket 221,
For accelerating the cooling of metal.
The heating pipeline section 210 includes at least two section unit pipes, is tightly connected between the adjacent two section unit pipes, when
One section unit pipes damage when, other unit pipes still can normal use, without whole boiler tube replace, consequently facilitating heating pipeline section 210
Maintenance and replacement, reduce cost of equipment maintenance.In the present embodiment, the boiler tube 200 includes ten section unit pipes.The reduction furnace
System further includes supply equipment, the junction of unit pipes described in two adjacent sections be equipped with overlap joint mouth, it is described take interface be arranged with it is close
Water shutoff set, the supply equipment is used for the gap water supply between the sealed water jacket and the unit pipes, so as to prevent the external world
Air enters heating pipeline section 210 by the junction gaps of unit pipes described in two adjacent sections, while may also function as and prevent heating tube
The effect of the overheat of section 210.
In the present embodiment, the heating pipeline section 210 divides is equipped with temperature measuring point and temperature controlling point for five warm areas, each warm area,
Each temperature measuring point is both provided with temperature thermocouple, and for detecting the temperature of the warm area, each temperature controlling point is both provided with control
Galvanic couple is warmed, the temperature-control heat couple is by controlling the temperature of warm area described in the current control of the electromagnetic induction coil to be in one
Determine in scope.So set, the fine tune temperature and detection process that are needed easy to technique.Five warm areas of the heating pipeline section 210
Respectively：First low-temperature space (temperature is less than or equal to 1000 DEG C), the second low-temperature space (temperature is less than or equal to 1000 DEG C), medium temperature
Area's (temperature is less than or equal to 1000 DEG C), the first high-temperature region (temperature is less than or equal to 1150 DEG C), (temperature is less than for the second high-temperature region
Or equal to 1150 DEG C).
Further, as shown in Figure 1, the reducing furnace system further includes into boat fire door 610 and goes out boat fire door 620.Institute
Boiler tube 200 is stated to be equipped with positioned at the feed inlet 250 into boat section 211 and the discharge port 260 for being located at boat pipeline section 220.It is described into boat stove
Door 610 at the feed inlet 250 or the boiler tube 200 feed side, it is described go out boat fire door 620 be located at the discharge port
At 260 or the boiler tube 200 exit side.Consequently facilitating keep the reducing atmosphere in boiler tube 200.It is described into 610 He of boat fire door
It is described go out boat fire door 620 be upper lower open-type hermatic door automatically.It is described into boat fire door 610 and it is described go out boat fire door 620 adopt
Handled with nanometer anticorrosive coating, can effectively prevent the oxidation corrosion of the fire door, extend the service life of equipment.It is described into boat stove
Door 610 and it is described go out boat fire door 620 use silica gel sealing, be conducive to improve described in into boat fire door 610 and it is described go out boat fire door
620 air-tightness.Specifically, it is described into boat fire door 610 and it is described go out boat fire door 620 be equipped with second gas organization of supply,
When it is described into boat fire door 610 or it is described go out boat fire door 620 open when, the second gas organization of supply can be in the feed inlet
250 or described discharge ports 260 form protection gas curtain, so as to prevent the gold that outside air enters in 200 internal oxidition boiler tube 200 of boiler tube
Belong to.In the present embodiment, the protection gas curtain is nitrogen gas curtain.
As shown in figures 1 and 3, in the present embodiment, the heating structure is electromagnetic induction coil 310, the electromagnetic induction
Coil 310 is wound on the outer wall of the heating pipeline section 210 in the shape of a spiral.Heated securely and reliably using electromagnetic induction coil 310,
Firing rate is fast, and energy utilization rate is high, and environmentally safe.The electromagnetic induction coil 310 is powered by high frequency electric source, described
The power of high-frequency electromagnetic induction coil 310 is preferably 50KW, and frequency range is 200kHz~600kHz, is set up by continuous work
Meter.Use high frequency electric source to provide electric energy for electromagnetic induction coil 310, further improve firing rate and energy utilization rate.It is described
Heating arrangements 310 further include copper pipe, and the electromagnetic induction coil 310 is wound in outside the copper pipe, strong for improving electromagnetic induction
Degree, so as to improve firing rate.Lead to cooling water in the copper pipe, for preventing copper pipe from overheating.In the present embodiment, the electromagnetism sense
It is 10 altogether to answer coil 310.
As shown in figure 4, it is equipped with least two storage tanks 410, at least two storage tank 410 in the accommodating boat 400
Arragement direction perpendicular to the accommodating boat 400 moving direction so that improving each accommodating boat 400 transports metal oxide
Ability, and improve the reduction efficiency of the reducing furnace system, while also save the energy.It is each accommodating in the present embodiment
Boat 400 is equipped with ten storage tanks 410, the cross section of the boiler tube 200 for rectangle and with the cross section phase of the accommodating boat 400
Matching.
In the present embodiment, the material of the boiler tube 200 is quartz, and the material of the accommodating boat 400 is graphite.The boiler tube
200 use quartz material, and good heat conductivity, hardness is high, and chemical property is stablized, and is not easy to react with metal, the accommodating boat
400 use graphite material, and good heat conductivity, is not easy to react with metal under reducing atmosphere.And quartz is with graphite
The material of surface smoother, is slided easy to accommodating boat 400 in boiler tube 200.
In the present embodiment, the appearance and size of the furnace foundation frame 100 is 9500mm × 650mm × 720mm (length × width × height),
The appearance and size of the unit pipes is 630mm × 250mm × 80mm (length × width × height), wall thickness 4mm, the electromagnetic induction coil
310 be the square coil of single turn and appearance and size is 280mm × 100mm (wide × high), and the appearance and size of the accommodating boat 400 is
610mm × 260mm × 45mm (length × width × height), house translational speed scope of the boat 400 in boiler tube 200 for 0mm/min~
20mm/min, can be adjusted according to actual needs, and the cooling water in the cooling jacket 221 and copper pipe is not muddy to be transparent
Turbid, the water of deposit-free, its physical-chemical parameters is as follows：PH6~8, conductivity≤600us/cm, inflow temperature are not less than 5 DEG C,
Not higher than 30 DEG C, intake pressure 0.25-0.35Mpa, flow 15m3/h.Above numerical value is only that proposition one can be for reference
Embodiment, in other embodiments, above appearance and size and relevant physicochemical parameter can be also adjusted according to actual needs.
As shown in Fig. 2, in another embodiment, unlike the embodiments above, the reducing furnace system further includes
Cyclic track 700, the both ends of the both ends of the cyclic track 700 respectively with the boiler tube 200 are connected.It is described in the present embodiment
Cyclic track 700 is located at the lower section of the boiler tube 200, described to go out to be connected with and incline between boat fire door 620 and the cyclic track 700
Inclined plate 800, slides on cyclic track 700 from the accommodating boat 400 of boat fire door 620 out is gone out through hang plate 800.The circulation rail
Road 700 is equipped with transport mechanism and material fetching mechanism, positioned at it is described go out boat pipeline section 220 in the accommodating boat 400 adjacent another
One end of the cyclic track 700 can be entered under the promotion of one accommodating boat 400, afterwards in the conveying of the transport mechanism
Under be moved to the other end of the cyclic track 700.The material fetching mechanism is used to make as-reduced metal and the accommodating boat 400
Depart from.The cyclic track 700 can improve the degree of automation of the metal reducing and smelting process, without being by manual operation
The transfer of accommodating boat 400 can be completed, the accommodating boat 400 can be recycled after feeding, reduce production cost.The present embodiment
In, the driving mechanism is the conveyer belt 730 being layed on the cyclic track 700.In the present embodiment, the material fetching mechanism is
Gripper 710, for capturing the metal in the accommodating boat 400, so as to improve the degree of automation of feeding operation and accurate
Property.
In an embodiment as illustrated in figure 2, the reducing furnace system further includes into boat inductor 910 and goes out boat inductor
920, it is described to be arranged on into boat inductor 910 between the charge mechanism 720 and the feed inlet 250, it is described into boat inductor 910
Sense that accommodating boat 400 passes through, the driving mechanism starts to act, it is described go out boat inductor 920 be arranged on it is described go out boat pipeline section 220
Between the material fetching mechanism, it is described go out boat inductor 920 sense that accommodating boat 400 passes through, the material fetching mechanism starts to act.
Further, the reducing furnace system further includes system integration controller (not shown).In the present embodiment, institute
It is indoor self-supporting power control cabinet to state system integration controller, using industry control intelligence, and uses PLC programmable controller and touch-screen
Realize data manipulation.In the present embodiment, the system integration controller include high frequency electric source control module, fluid control module and
Feed feeding module.The high frequency electric source control module is electrically connected with the high frequency electric source and for controlling the high frequency electric source
Break-make and output power；The second gas organization of supply, the first gas organization of supply and the supply equipment with
The fluid control module connection, the fluid control module are used for the stream for controlling protective gas, reducibility gas and cooling water
Amount；The charge mechanism 720 and the material fetching mechanism are electrically connected with the charging feeding control module, the charging feeding
The operation that control module passes through automatic feed programme-control charge mechanism 720 and material fetching mechanism.
The operation principle of the reducing furnace system is specifically introduced by taking the reduction process of germanium dioxide as an example below：After de- material
Accommodating boat 400 is moved to loading germanium dioxide powder at charge mechanism 720 under the drive of transport mechanism, then in transport mechanism
Drive under be moved into boat fire door 610, opened into boat fire door 610, at the same second gas organization of supply toward into boat fire door 610 or
Feed inlet 250, which is blown, forms protection gas curtain.The accommodating boat 400 passes through under the drive of driving mechanism to be entered into boat fire door 610
It is described to push away boat case 500, and enter heating pipeline section 210 into boat section 211 through described, while near going out in heating pipeline section 210
The accommodating boat 400 of boat pipeline section 220 removes heating pipeline section 210 and enters in boat pipeline section 220.Into the accommodating boat of heating pipeline section 210
Under reducibility gas and high temperature action of the germanium dioxide powder in heating pipeline section 210 in 400, reduction reaction generation germanium occurs
Metal dust simultaneously changes into molten condition, and germanium ingot is cooled into going out boat pipeline section 220, then removes boiler tube through going out boat fire door 620
200, while second gas organization of supply is toward going out boat fire door 620 or discharge port 260 and blow to form protection gas curtain.Accommodating boat 400 is transported
Carry germanium ingot to be moved on cyclic track 700, the germanium ingot captures removal by gripper 710, and the accommodating boat 400 after de- material then exists
Charge mechanism 720 is moved again under the drive of transport mechanism to feed.So circulate repeatedly, until completing germanium dioxide
Reducing and smelting works.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope that this specification is recorded all is considered to be.
Embodiment described above only expresses the several embodiments of the present invention, its description is more specific and detailed, but simultaneously
Cannot therefore it be construed as limiting the scope of the patent.It should be pointed out that come for those of ordinary skill in the art
Say, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Scope.
Claims (10)
1. a kind of reducing furnace system, it is characterised in that including boiler tube, heating structure, driving mechanism and to be restored for housing
The accommodating boat of metal oxide, the boiler tube include the heating pipeline section being connected with each other and go out boat pipeline section, and the heating arrangements are arranged
In on the heating pipeline section, the accommodating boat is at least two and can be in the stove in-pipe, in the boiler tube
The accommodating boat is arranged successively along the axial direction of the boiler tube, and the driving mechanism is used to successively push the accommodating boat to described
Heat pipeline section in, positioned at it is described heating pipeline section in the accommodating boat under the promotion of another adjacent accommodating boat successively
Go out described in being moved in boat pipeline section.
2. reducing furnace system according to claim 1, it is characterised in that the driving mechanism is used to push away in the accommodating boat
Predeterminated position in extremely described heating pipeline section, the predeterminated position go out the one of boat pipeline section positioned at the heating pipeline section away from described in
End, when the driving mechanism by one in the accommodating boat push-in heating pipeline section when, another described accommodating boat is from described
Heating pipeline section is removed and gone out in boat pipeline section described in entering.
3. reducing furnace system according to claim 1, it is characterised in that it is accommodating that at least two are equipped with the accommodating boat
Groove, the moving direction of the arragement direction of at least two storage tank perpendicular to the accommodating boat.
4. reducing furnace system according to claim 1, it is characterised in that cyclic track is further included, the cyclic track
Both ends of the both ends respectively with the boiler tube are docked, and the cyclic track is equipped with transport mechanism, positioned at it is described go out boat pipeline section in
The accommodating boat can enter one end of the cyclic track under the promotion of another adjacent accommodating boat, afterwards described
The other end of the cyclic track is moved under the conveying of transport mechanism.
5. reducing furnace system according to claim 4, it is characterised in that the cyclic track goes out boat pipeline section described in
One end is additionally provided with material fetching mechanism, and the material fetching mechanism is used to capture the reducing metal in the accommodating boat, the cyclic track
Charge mechanism is equipped with close to one end of the heating pipeline section, the charge mechanism is used to metal oxide to be restored being positioned over
In the accommodating boat.
6. reducing furnace system according to claim 5, it is characterised in that further include into boat inductor and go out boat inductor,
It is described to be arranged on into boat inductor between the charge mechanism and the heating pipeline section, it is described to sense described house into boat inductor
When boat passes through, the driving mechanism starts to act, it is described go out boat inductor be arranged on it is described go out boat pipeline section and the material fetching mechanism it
Between, it is described go out boat inductor when sensing that the accommodating boat passes through, the material fetching mechanism starts to act.
7. reducing furnace system according to claim 1, it is characterised in that further include first gas organization of supply, described
The outlet side of one gas organization of supply is connected with the boiler tube, for being blown into reducing gas into the boiler tube.
8. reducing furnace system according to claim 1, it is characterised in that further include into boat fire door and go out boat fire door, it is described
Boiler tube be equipped with positioned at it is described heating pipeline section on feed inlet and positioned at it is described go out boat pipeline section on discharge port, it is described into boat fire door position
At the feed inlet or the boiler tube feed side, it is described go out boat fire door be located at the discharging of the discharge outlet or the boiler tube
Side, it is described into boat fire door and it is described go out boat fire door be equipped with second gas organization of supply, when it is described into boat fire door or it is described go out
When boat is door opened, the second gas organization of supply is used to form protection gas curtain in the feed inlet or the discharge port.
9. reducing furnace system according to any one of claim 1 to 8, it is characterised in that the heating pipeline section is included extremely
Few two save unit pipes, are tightly connected between the adjacent two section unit pipes.
10. reducing furnace system according to any one of claim 1 to 8, it is characterised in that the material of the boiler tube is stone
English；The material of the accommodating boat is graphite；The heating structure is electromagnetic induction coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810032090.0A CN108036639A (en) | 2018-01-12 | 2018-01-12 | Reducing furnace system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810032090.0A CN108036639A (en) | 2018-01-12 | 2018-01-12 | Reducing furnace system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108036639A true CN108036639A (en) | 2018-05-15 |
Family
ID=62099442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810032090.0A Pending CN108036639A (en) | 2018-01-12 | 2018-01-12 | Reducing furnace system |
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| Country | Link |
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| CN (1) | CN108036639A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109489414A (en) * | 2018-11-15 | 2019-03-19 | 北京科技大学 | A kind of continuous atmosphere sintering furnace of high-speed rail brake block |
| CN111172589A (en) * | 2020-03-05 | 2020-05-19 | 扬州宁达贵金属有限公司 | Germanium reduction directional crystallization furnace and crystallization method |
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| CN207865951U (en) * | 2018-01-12 | 2018-09-14 | 韶关保绿环保科技股份有限公司 | Reducing furnace system |
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| CN2757076Y (en) * | 2004-11-16 | 2006-02-08 | 彩虹集团电子股份有限公司 | Continuous high temperature reducing automatic channel firing furnace |
| CN2859428Y (en) * | 2005-09-23 | 2007-01-17 | 卢国普 | Automatic in-out boat appts. |
| CN102798293A (en) * | 2012-07-30 | 2012-11-28 | 西安理工大学 | Discharge pulling device for material boat of reduction furnace |
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| CN109489414A (en) * | 2018-11-15 | 2019-03-19 | 北京科技大学 | A kind of continuous atmosphere sintering furnace of high-speed rail brake block |
| CN111172589A (en) * | 2020-03-05 | 2020-05-19 | 扬州宁达贵金属有限公司 | Germanium reduction directional crystallization furnace and crystallization method |
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