CN110360840A - A kind of novel alloy boiler that is rapidly heated - Google Patents
A kind of novel alloy boiler that is rapidly heated Download PDFInfo
- Publication number
- CN110360840A CN110360840A CN201910640734.9A CN201910640734A CN110360840A CN 110360840 A CN110360840 A CN 110360840A CN 201910640734 A CN201910640734 A CN 201910640734A CN 110360840 A CN110360840 A CN 110360840A
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- CN
- China
- Prior art keywords
- hole
- furnace body
- heated
- alloy
- pipe
- 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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Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
-
- 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
- F27B14/00—Crucible or pot furnaces
-
- 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
- F27B14/00—Crucible or pot furnaces
- F27B14/08—Details peculiar to crucible or pot furnaces
-
- 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
- F27B14/00—Crucible or pot furnaces
- F27B14/08—Details peculiar to crucible or pot furnaces
- F27B14/14—Arrangements of heating devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/10—Reduction of greenhouse gas [GHG] emissions
- Y02P10/143—Reduction of greenhouse gas [GHG] emissions of methane [CH4]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Abstract
The invention discloses a kind of novel alloy boilers that is rapidly heated, and are related to boiler plant field.The present invention includes furnace body；The inner bottom surface of furnace body is vertically welded with several first support columns, a heated by natural gas device for having burner, fire cover, air storage chamber is welded and fixed in first support column one end, one surface of heated by natural gas device is welded with several high temperature resistant cushion blocks, and one end composite joint of cushion block has the heated cabinet of alloy processing uncovered；The top surface of furnace body offers the first through hole and the second through hole, and interference fit has one first pressure relief safety valve in the first through hole, and interference fit has an exhaust pipe in the second through hole.The present invention is equipped with exhaust pipe, a kind of U-shaped water pipe of circulation waste heat recycling is installed in inside by providing a kind of heat-resisting cylinder type furnace body at the top of furnace body, using natural gas as heating fuel, cooperates heating device, reduce environmental pollution, the energy has been saved, the speed of boiler heating is improved.
Description
Technical field
The invention belongs to boiler plant fields, more particularly to a kind of novel alloy boiler that is rapidly heated.
Background technique
Alloy boiler is the boiler for alloy smelting, is heated alloy raw material at alloy water by alloy boiler, poured
It builds into die for molding, the base bleed that existing alloy boiler uses, the time that temperature rises to defined numerical value cost is longer,
It is heated using coal, environmental pollution is serious, and the waste heat in boiler does not take any mode to be recycled, and energy waste is tight
Weight.Therefore have great importance in view of the above problems, providing the novel alloy pot furnace being rapidly heated of one kind.
Summary of the invention
The purpose of the present invention is to provide a kind of novel alloy boilers that is rapidly heated, by providing a kind of heat-resisting cylinder type
Furnace body, exhaust pipe is equipped at the top of furnace body, and inside is installed a kind of U-shaped water pipe of circulation waste heat recycling, made using natural gas
To heat fuel, cooperates heating device, solve existing alloy boiler environment pollution, energy waste, heat up slow problem.
In order to solve the above technical problems, the present invention is achieved by the following technical solutions:
The present invention is a kind of novel alloy boiler that is rapidly heated, including furnace body；The furnace body is cylinder type, the furnace
The outer bottom welding machine of body is fixed with support construction；
The inner bottom surface of the furnace body is vertically welded with several first support columns, and first support column one end is welded and fixed one
With burner, fire cover, air storage chamber heated by natural gas device, if a surface of the heated by natural gas device is welded with
Dry high temperature resistant cushion block, one end composite joint of the cushion block have the heated cabinet of alloy processing uncovered；
The inner wall side of the furnace body upper end is surrounded with a circle triangle water conservancy diversion block, the triangle water conservancy diversion block
Between compound round ceramic microporous filter screen；
The top surface of the furnace body offers the first through hole and the second through hole, and being interference fitted in first through hole has
One first pressure relief safety valve, interference fit has an exhaust pipe in second through hole；
Several pairs of third through holes, each pair of third through hole are symmetrically offered on the side inner wall of the furnace body vertically
Middle interference fit has the U-shaped water pipe for heat recovery, and the water intake end of the U-shaped water pipe and water outlet are passed through with third respectively
Perforation interference fit；The U-shaped water pipe is located in furnace body；
The 4th through hole corresponding with the alloy heated box location of processing uncovered is offered on the side inner wall of the furnace body
With the 5th through hole, interference fit has alloy to process material conveying tube in the 4th through hole, and the alloy processes material conveying tube
On be provided with the first pipe clip valve, interference fit has alloy to heat liquid efferent duct in the 5th through hole, and the alloy heats liquid
The second pipe clip valve is provided on efferent duct；
The 6th through hole corresponding with heated by natural gas setting position and the 7th are offered on the side inner wall of the furnace body
Through hole, interference fit has gas delivering pipe in the 6th through hole, and third pipe is provided on the gas delivering pipe
Valve is pressed from both sides, interference fit has water discharge pipe in the 7th through hole, and the 4th pipe clip valve is provided on the water discharge pipe.
Further, the inner bottom surface of the furnace body uniformly offers ventilation hole and at least one the 8th through hole, and described
Interference fit has one second pressure relief safety valve in eight through holes, and the bottom of the heated by natural gas device is equipped with electromagnetism sparking
Device.
Further, the support construction includes several the second support columns for being vertical at bottom of furnace body and is fixedly welded on
The iron pad of second support column one end, a surface of the iron pad uniformly offer a circle fixed mounting hole.
Further, all sides of the heated cabinet of alloy processing uncovered are vertically installed with several link blocks, the company
Connect the inner wall that block is fixedly connected with furnace body.
Further, instantaneous liquid is connected with one layer of refractory ceramics on the inner wall of the furnace body.
Further, temperature sensor and pressure sensor are provided on the inner wall of the furnace body.
Further, the lateral surface of the furnace body is fixedly installed with display screen and control panel.
Further, the diameter of second through hole is 10-30cm.
The invention has the following advantages:
1, the present invention provides a kind of heat-resisting cylinder type furnace body, is equipped with exhaust pipe, the bottom of furnace body at the top of furnace body
It is provided with the support support construction and ventilation hole of support column, instantaneous liquid is connected with one layer of refractory ceramics on inboard wall of furnace body, mentions
The high speed of furnace body heating.
2, the present invention cooperates heating device, reduces environmental pollution using natural gas as heating fuel.
3, furnace interior of the invention is equipped with U-shaped water pipe, and the water in U-shaped water pipe absorbs the temperature of furnace interior, and follows
Circulation goes out, and is used again through waste heat hot water after the recovery, has saved the energy, reduces the waste of the energy.
Certainly, it implements any of the products of the present invention and does not necessarily require achieving all the advantages described above at the same time.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, will be described below to embodiment required
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for ability
For the those of ordinary skill of domain, without creative efforts, it can also be obtained according to these attached drawings other attached
Figure.
Fig. 1 is a kind of structural schematic diagram of the novel alloy boiler that is rapidly heated of the present invention；
Fig. 2 is A-A sectional view in Fig. 1；
Fig. 3 is B-B sectional view in Fig. 1；
Fig. 4 is C-C sectional view in Fig. 1；
In attached drawing, parts list represented by the reference numerals are as follows:
1- furnace body, 2- support construction, the heated cabinet of 3- alloy processing uncovered, 4- heated by natural gas device, 5-U shape water pipe,
The first pressure relief safety valve of 6-, the second pressure relief safety valve of 7-, 8- round ceramic microporous filter screen, 9- triangle water conservancy diversion block, 10- temperature
Spend sensor, 11- pressure sensor, 12- display screen, 13- control panel, 14- exhaust pipe, the first through hole of 101-, 102- the
Two through holes, 103- third through hole, the 4th through hole of 104-, the 5th through hole of 105-, the 6th through hole of 106-, 107- the 7th
Through hole, the 8th through hole of 108-, 109- ventilation hole, 201- iron pad, 2011- fixed mounting hole, the second support column of 202-, 301-
Link block, 302- high temperature resistant cushion block, 303- hot-air branch pipe, the first pipe clip valve of 3031-, 304- alloy heat liquid efferent duct,
The second pipe clip valve of 3041-, the first support column of 401-, 402- electromagnetism fire maker, 403- gas delivering pipe, 4031- third pipe clamp
Valve, 404- water discharge pipe, the 4th pipe clip valve of 4041-.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts all other
Embodiment shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that, the indicating positions such as term "outside", " bottom surface ", " inner wall ", " side "
Or positional relationship, it is merely for convenience of description of the present invention and simplification of the description, rather than the component or element of indication or suggestion meaning
It must have a particular orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
It please refers to shown in Fig. 1-4, the present invention is a kind of novel alloy boiler that is rapidly heated, including furnace body 1；Furnace body 1 is circle
The outer bottom welding machine of cylindrical structure, furnace body 1 is fixed with support construction 2；
The inner bottom surface of furnace body 1 is vertically welded with several first support columns 401, and four 401 one end of the first support column welding are solid
Fixed one has the heated by natural gas device 4 of burner, fire cover, air storage chamber, and a surface of heated by natural gas device 4 is welded with
Four high temperature resistant cushion blocks 302, one end composite joint of cushion block 302 have the heated cabinet 3 of alloy processing uncovered；
The inner wall side of 1 upper end of furnace body is surrounded with a circle triangle water conservancy diversion block 9, between triangle water conservancy diversion block 9
Compound round ceramic microporous filter screen 8；
The top surface of furnace body 1 offers the first through hole 101 and the second through hole 102, is interference fitted in the first through hole 101
There is one first pressure relief safety valve 6, interference fit has an exhaust pipe 14 in the second through hole 102；
As shown in Fig. 2, symmetrically offer two pairs of third through holes 103 vertically on the side inner wall of furnace body 1, each pair of described the
Interference fit has the U-shaped water pipe 5 for heat recovery, the water intake end of U-shaped water pipe 5 and water outlet point in three through holes 103
It is not interference fitted with third through hole 103；U-shaped water pipe 5 is located in furnace body 1；
It is heated 3 position of cabinet corresponding the as shown in figure 3, being offered on the side inner wall of furnace body 1 with alloy processing uncovered
Four through holes 104 and the 5th through hole 105, interference fit has alloy to process material conveying tube 303, alloy in the 4th through hole 104
The first pipe clip valve 3031 is provided on processing material conveying tube 303, interference fit has alloy hot melt liquid output in the 5th through hole 105
Pipe 304, alloy heat and are provided with the second pipe clip valve 3041 on liquid efferent duct 304；
The 6th through hole 106 and the 7th corresponding with 4 position of heated by natural gas device is offered on the side inner wall of furnace body 1
Through hole 107, interference fit has gas delivering pipe 403 in the 6th through hole 106, and the is provided on gas delivering pipe 403
Three pipe clip valves 4031, interference fit has water discharge pipe 404 in the 7th through hole 107, and the 4th pipe clamp is provided on water discharge pipe 404
Valve 4041.
Wherein, the inner bottom surface of furnace body 1 uniformly offers ventilation hole 109 and two the 8th through holes 108, the 8th through hole
Interference fit has one second pressure relief safety valve 7 in 108, and the bottom of heated by natural gas device 4 is equipped with electromagnetism fire maker 402.
Wherein, as shown in figure 4, support construction 2 includes four the second support columns 202 for being vertical at 1 bottom of furnace body and weldering
The iron pad 201 for being fixed on 202 one end of the second support column is connect, a surface of iron pad 201 uniformly offers a circle fixed mounting hole
2011。
Wherein, the first support column 401, triangle water conservancy diversion block 9, high temperature resistant cushion block 302, the heated cabinet of alloy processing uncovered
3 material is refractory ceramics.
Wherein, all sides of the heated cabinet 3 of alloy processing uncovered are vertically installed with several link blocks 301, and link block 301 is solid
Surely the inner wall of furnace body 1 is connected.
Wherein, the material of furnace body 1 is cast iron, and instantaneous liquid is connected with one layer of refractory ceramics on the inner wall of furnace body 1.
Wherein, temperature sensor 10 and pressure sensor 11 are provided on the inner wall of furnace body 1.
Wherein, the lateral surface of furnace body 1 is fixedly installed with display screen 12 and control panel 13.
Wherein, the diameter of the second through hole 102 is 15cm.
In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means
Particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one implementation of the invention
In example or example.In the present specification, schematic expression of the above terms may not refer to the same embodiment or example.
Moreover, particular features, structures, materials, or characteristics described can be in any one or more of the embodiments or examples to close
Suitable mode combines.
Present invention disclosed above preferred embodiment is only intended to help to illustrate the present invention.There is no detailed for preferred embodiment
All details are described, are not limited the invention to the specific embodiments described.Obviously, according to the content of this specification,
It can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is in order to better explain the present invention
Principle and practical application, so that skilled artisan be enable to better understand and utilize the present invention.The present invention is only
It is limited by claims and its full scope and equivalent.
Claims (8)
1. a kind of novel alloy boiler that is rapidly heated, which is characterized in that including furnace body (1)；The furnace body (1) is cylinder type knot
The outer bottom welding machine of structure, the furnace body (1) is fixed with support construction (2)；
The inner bottom surface of the furnace body (1) is vertically welded with several first support columns (401), described first support column (401) one end
Be welded and fixed one with burner, fire cover, air storage chamber heated by natural gas device (4), the one of the heated by natural gas device (4)
Surface is welded with several high temperature resistant cushion blocks (302), and one end composite joint of the cushion block (302) has an alloy to process uncovered
Heated cabinet (3)；
The inner wall side of furnace body (1) upper end is surrounded with a circle triangle water conservancy diversion block (9), the triangle water conservancy diversion gear
Compound round ceramic microporous filter screen (8) between block (9)；
The top surface of the furnace body (1) offers the first through hole (101) and the second through hole (102), first through hole
(101) interference fit has one first pressure relief safety valve (6) in, and interference fit has an exhaust pipe in second through hole (102)
(14)；
Several pairs of third through holes (103) are symmetrically offered vertically on the side inner wall of the furnace body (1), and each pair of third is passed through
Interference fit has a U-shaped water pipe (5) for heat recovery in perforation (103), the water intake end of the U-shaped water pipe (5) and goes out
Water end (W.E.) is interference fitted with third through hole (103) respectively；The U-shaped water pipe (5) is located in furnace body (1)；
It offers on the side inner wall of the furnace body (1) and runs through with heated cabinet (3) position the corresponding 4th of alloy processing uncovered
Hole (104) and the 5th through hole (105), the middle interference fit of the 4th through hole (104) have alloy to process material conveying tube
(303), it is provided with the first pipe clip valve (3031) on alloy processing material conveying tube (303), in the 5th through hole (105)
Interference fit has alloy to heat liquid efferent duct (304), is provided with the second pipe clip valve on alloy hot melt liquid efferent duct (304)
(3041)；
The 6th through hole (106) corresponding with heated by natural gas device (4) position is offered on the side inner wall of the furnace body (1)
With the 7th through hole (107), the middle interference fit of the 6th through hole (106) has gas delivering pipe (403), the natural gas
It is provided in delivery pipe (403) third pipe clip valve (4031), interference fit has water discharge pipe in the 7th through hole (107)
(404), the 4th pipe clip valve (4041) is provided on the water discharge pipe (404).
2. the novel alloy boiler that is rapidly heated of one kind according to claim 1, which is characterized in that the furnace body (1) it is interior
Bottom surface uniformly offers ventilation hole (109) and at least one the 8th through hole (108), interference in the 8th through hole (108)
It is combined with one second pressure relief safety valve (7), the bottom of the heated by natural gas device (4) is equipped with electromagnetism fire maker (402).
3. the novel alloy boiler that is rapidly heated of one kind according to claim 1, which is characterized in that the support construction (2)
Including several the second support columns (202) for being vertical at furnace body (1) bottom and it is fixedly welded on the second support column (202) one end
Iron pad (201), a surface of the iron pad (201) uniformly offer a circle fixed mounting hole (2011).
4. the novel alloy boiler that is rapidly heated of one kind according to claim 1, which is characterized in that the alloy processes uncovered
All sides of heated cabinet (3) are vertically installed with several link blocks (301), and the link block (301) is fixedly connected with furnace body (1)
Inner wall.
5. the novel alloy boiler that is rapidly heated of one kind according to claim 1, which is characterized in that the furnace body (1) it is interior
Instantaneous liquid is connected with one layer of refractory ceramics on wall.
6. the novel alloy boiler that is rapidly heated of one kind according to claim 1, which is characterized in that the furnace body (1) it is interior
Temperature sensor (10) and pressure sensor (11) are provided on wall.
7. the novel alloy boiler that is rapidly heated of one kind according to claim 1, which is characterized in that outside the furnace body (1)
Side is fixedly installed with display screen (12) and control panel (13).
8. the novel alloy boiler that is rapidly heated of one kind according to claim 1, which is characterized in that second through hole
(102) diameter is 10-30cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910640734.9A CN110360840A (en) | 2019-07-16 | 2019-07-16 | A kind of novel alloy boiler that is rapidly heated |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910640734.9A CN110360840A (en) | 2019-07-16 | 2019-07-16 | A kind of novel alloy boiler that is rapidly heated |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110360840A true CN110360840A (en) | 2019-10-22 |
Family
ID=68219618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910640734.9A Withdrawn CN110360840A (en) | 2019-07-16 | 2019-07-16 | A kind of novel alloy boiler that is rapidly heated |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110360840A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6132319Y2 (en) * | 1981-09-03 | 1986-09-19 | ||
| CN202119086U (en) * | 2011-06-10 | 2012-01-18 | 余良智 | Improved environment-friendly and energy-saving boiler |
| CN102679727A (en) * | 2011-03-10 | 2012-09-19 | 陆红彩 | High-efficiency melting furnace |
| CN103206784A (en) * | 2013-03-28 | 2013-07-17 | 郭红妹 | Efficient and energy-saving boiler |
| CN107131764A (en) * | 2016-02-26 | 2017-09-05 | 泰州市兴华齿轮制造有限公司 | A kind of smelting furnace with dust arrester installation |
| CN108036350A (en) * | 2017-11-24 | 2018-05-15 | 浙江保康轮毂制造有限公司 | A kind of recyclable melting boiler |
| CN208269677U (en) * | 2018-01-31 | 2018-12-21 | 安徽慧能环境科技有限公司 | A kind of energy saving and environment friendly natural gas smelting furnace |
| CN109737752A (en) * | 2018-12-13 | 2019-05-10 | 赵佳乐 | A kind of metal smelting furnace |
-
2019
- 2019-07-16 CN CN201910640734.9A patent/CN110360840A/en not_active Withdrawn
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6132319Y2 (en) * | 1981-09-03 | 1986-09-19 | ||
| CN102679727A (en) * | 2011-03-10 | 2012-09-19 | 陆红彩 | High-efficiency melting furnace |
| CN202119086U (en) * | 2011-06-10 | 2012-01-18 | 余良智 | Improved environment-friendly and energy-saving boiler |
| CN103206784A (en) * | 2013-03-28 | 2013-07-17 | 郭红妹 | Efficient and energy-saving boiler |
| CN107131764A (en) * | 2016-02-26 | 2017-09-05 | 泰州市兴华齿轮制造有限公司 | A kind of smelting furnace with dust arrester installation |
| CN108036350A (en) * | 2017-11-24 | 2018-05-15 | 浙江保康轮毂制造有限公司 | A kind of recyclable melting boiler |
| CN208269677U (en) * | 2018-01-31 | 2018-12-21 | 安徽慧能环境科技有限公司 | A kind of energy saving and environment friendly natural gas smelting furnace |
| CN109737752A (en) * | 2018-12-13 | 2019-05-10 | 赵佳乐 | A kind of metal smelting furnace |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20191022 |