CN108178158A - The straight trough type resistance furnace collected exhaust gas and can be explosion-proof - Google Patents
The straight trough type resistance furnace collected exhaust gas and can be explosion-proof Download PDFInfo
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- CN108178158A CN108178158A CN201810057064.3A CN201810057064A CN108178158A CN 108178158 A CN108178158 A CN 108178158A CN 201810057064 A CN201810057064 A CN 201810057064A CN 108178158 A CN108178158 A CN 108178158A
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- gas
- exhaust gas
- shaft
- flue gas
- transverse slat
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Abstract
A kind of straight trough type resistance furnace collected exhaust gas and can be explosion-proof, including shaft, burner, waste gas collection device and the exhaust gas deflector contacted with ground.Waste gas collection device is arranged on above shaft, exhaust gas deflector is arranged on the both sides of shaft, there are gaps between exhaust gas deflector and shaft, there is the air inlet passage entered for outside air between exhaust gas deflector and ground, exhaust gas deflector is used to stop the interior flue gas generated of shaft to two side diffusion of shaft, and it guides flue gas and is flowed from the air that exhaust gas deflector bottom enters to waste gas collection device, waste gas collection device is used to that extraneous flue gas processing device processing will to be conveyed to after the flue gas spread above shaft and the flue gas and air trapping of the guiding of exhaust gas deflector, there is gap between waste gas collection device and shaft, when the air pressure in region surrounded in waste gas collection device and exhaust gas deflector increases suddenly, increased flue gas is discharged using gap to reduce air pressure.
Description
Technical field
The present invention relates to smelting equipment technical field, more particularly to a kind of straight trough type resistance collected exhaust gas and can be explosion-proof
Stove.
Background technology
At present, it when with straight trough type resistance furnace silicon carbide smelting product and smelting graphitized coke product, can generate a large amount of
CO gas and the volatile combustible gases of sulfur vapor and carbon material discharge, these fuel gas from smelting furnace to
Outer discharge is burnt to stove surface, is generated containing great amount of carbon dioxide and unburned carbon monoxide, sulfur dioxide and nitrogen dioxide
Mixed flue gas.
For above-mentioned technical problem, corresponding solution is given in the prior art, for example, Patent No.
2007101293404th, invention and created name is given for a kind of Chinese invention patent of the sic smelting furnace of energy reclaiming smelting exhaust gas
The technical solution gone out：Furnace body is made of burner, furnace bottom, electrode, and furnace body both sides set furnace wall, and furnace wall is airtight furnace wall, furnace wall with
Burner, furnace bottom composition straight trough shape, set bell thereon, and burner, furnace bottom, furnace wall, bell form furnace interior confined space, if
It puts inside and outside multiple gas collecting tube connection furnace bodies, achievees the purpose that collection, discharge, utilizes smelting exhaust gas；For another example number of patent application is
2016105541506th, invention and created name is provided for the Chinese invention patent application of silicon carbide smelting gas sampling purifier
Technical solution：Sic smelting furnace totally-enclosed gas gathering mask, sic smelting furnace are arranged on inside gas gathering mask, one end of gas gathering mask
With recovery pipe system connectivity, recovery pipe system passes through pipe by pipeline and desulfurizing and purifying system connectivity, desulfurizing and purifying system
Road is connected with exhaust blower, and exhaust blower is connected by pipeline with caisson；The gas gathering mask is made of lower cover and upper outlet body, under
Cover body and the superposition of upper outlet body level, set the second water sealed tank between lower cover and upper outlet body and between lower cover and bottom surface, on
Covering on top sets pressure release sealing device, is collected using totally-enclosed gas gathering mask, and whole system is in micro-positive pressure, zero-pressure and micro- negative
Pressure operation, closed No leakage, cover body are divided into more piece, and lower cover exchanges installation, and lifting is convenient, and desulfurizing and purifying system can be complete
The H generated in removal smelting process2S so that the CO being collected into, can direct secondary use without processing.
However there are following technical problems for the above-mentioned prior art：Since the above-mentioned prior art is thought using full-sealing technique
Think, to ensure that exhaust gas is smoothly collected, dimensional accuracy, installation accuracy this requires equipment will meet certain standard, this accurate
The equipment of change is simultaneously not suitable in industrialized silicon carbide smelting production, so can not promote；Moreover, above application
The prior art of full-sealing technique thought is there are security risk, for example, when " burner, furnace bottom, furnace wall, bell form furnace interior
Confined space " or " sic smelting furnace totally-enclosed gas gathering mask " cause the fuel gas collected to be discharged not in time because of internal fault
When, it is possible to explosion accident occurs.
Invention content
In view of this, it is necessary to which a kind of straight trough type resistance furnace collected exhaust gas and can be explosion-proof is provided.
A kind of straight trough type resistance furnace collected exhaust gas and can be explosion-proof, shaft, burner, exhaust gas including being contacted with ground are received
Acquisition means and exhaust gas deflector.Waste gas collection device is arranged on above shaft, and exhaust gas deflector is arranged on the both sides of shaft, exhaust gas
There are gaps between deflector and shaft, there is the air entered for outside air to enter logical between exhaust gas deflector and ground
Road, exhaust gas deflector are used to stop the flue gas generated in shaft to two side diffusion of shaft, and guide flue gas and from exhaust gas deflector
The air that bottom enters is flowed to waste gas collection device, and waste gas collection device is used for the flue gas and exhaust gas that will be spread to shaft top
Be conveyed to extraneous flue gas processing device processing after the flue gas and air trapping of deflector guiding, waste gas collection device and shaft it
Between have gap, when the air pressure in region surrounded in waste gas collection device and exhaust gas deflector increases suddenly, released using gap
Increased flue gas is put to reduce air pressure.
In above-mentioned collection exhaust gas and straight trough type resistance furnace that can be explosion-proof, waste gas collection device is arranged on above shaft and useless
Gas collection device is set has gap between shaft, and exhaust gas deflector is arranged on the both sides of shaft, exhaust gas deflector and shaft it
Between there are gap, so form a flue gas that waste gas collection device is smoothly reached for flue gas caused by guiding inside shaft
Drainage channel, while when waste gas collection device cannot in time discharge unexpected increased flue gas, discharged using gap increased
Flue gas, realizes the interim emptying of flue gas, and then avoids explosion accident, and above-mentioned collection exhaust gas and can be explosion-proof straight trough type
Dimensional accuracy, the installation accuracy of resistance furnace are of less demanding, adapt to industrialized silicon carbide smelting production requirement, therefore can push away extensively
Extensively.
Description of the drawings
Attached drawing 1 be the collection exhaust gas of a better embodiment and can be explosion-proof straight trough type resistance furnace structure diagram.
Attached drawing 2 be collect exhaust gas and can be explosion-proof straight trough type resistance furnace cross-sectional view.
Attached drawing 3 is the attachment structure schematic diagram of telescopic Coupling and telescopic Coupling.
In figure：Collect exhaust gas and can be explosion-proof straight trough type resistance furnace 10, shaft 20, movable side wall 21, chan frame
210th, breathe freely wall 211, furnace core 22, burner 30, waste gas collection device 40, cover 41, the first transverse slat 410, the second transverse slat 411,
Third transverse slat 412, side plate 413, support portion 414, vertical strengthening ribs 415, cross reinforcing 416, gas collecting tube 42, flue gas access aperture
420th, wind turbine 43, spraying cooling pipeline 44, telescopic Coupling 45, second insulating layer 46, exhaust gas deflector 50, flue gas barrier plate
51st, flow distribution plate 52, opened by pressure formula sealing curtain 60, the first insulating blanket 70, explosion-proof safety window 80 are guided.
Specific embodiment
Referring to Fig. 1 to Fig. 3, collect exhaust gas and can be explosion-proof straight trough type resistance furnace 10 include what is contacted with ground
Shaft 20, burner 30, waste gas collection device 40 and exhaust gas deflector 50.Waste gas collection device 40 is arranged on 20 top exhaust gas of shaft
Deflector 50 is arranged on the both sides of shaft 20, and there are gap, exhaust gas deflector 50 and ground between exhaust gas deflector 50 and shaft 20
There is the air inlet passage entered for outside air, exhaust gas deflector 50 is used to stop the flue gas generated in shaft 20 between face
To 20 liang of side diffusions of shaft, and the air for guiding flue gas and entering from 50 bottom of exhaust gas deflector is flowed to waste gas collection device 40
Dynamic, the flue gas wherein generated in shaft 20 mainly includes carbon monoxide, and waste gas collection device 40 is used to 20 top of shaft to expand
Extraneous flue gas processing device processing is conveyed to after flue gas and air trapping that scattered flue gas and exhaust gas deflector 50 guide, at this
In embodiment, the flue gas that the flue gas and exhaust gas deflector 50 that are spread to 20 top of shaft are guided is in 40 institute of waste gas collection device
Extraneous flue gas processing device processing is delivered in the region surrounded again after oxidation processes, for example, passing through a burning fume
Mode aoxidizes to realize；Wherein, and between waste gas collection device 40 and shaft 20 there is gap, collected in waste gas collection device 40
During flue gas, extraneous air can enter from the gap, so that the collection flue gas of waste gas collection device 40 is more smooth；It is received in exhaust gas
When the air pressure in region that acquisition means 40 and exhaust gas deflector 50 surround increases suddenly, for example, the flue gas generated in shaft 20 is big
Amount increases and when 40 area defined internal oxidition of waste gas collection device causes new flue gas to increase severely suddenly, is discharged using gap
Increased flue gas is to reduce air pressure.The air inlet passage can be formed in the following way：For example, exhaust gas deflector 50
It does not contact with ground less than the height of shaft 20 and exhaust gas deflector 50 highly, has between such exhaust gas deflector 50 and ground
Gap；In other embodiments, the height of exhaust gas deflector 50 is not limited by the height of shaft 20, can also be in exhaust gas water conservancy diversion
The lower part of plate 50 opens up the through-hole entered for outside air.
In the present embodiment, opened by pressure formula sealing curtain is set between waste gas collection device 40 and exhaust gas deflector 50
60, region internal pressure of the opened by pressure formula sealing curtain 60 for being surrounded in waste gas collection device 40 and exhaust gas deflector 50 is powerful in it
It is opened during the pressure-bearing value of itself, to discharge the flue gas collected.When waste gas collection device 40 cannot in time discharge flue gas, pressure
Open-type sealing curtain 60 be under pressure increased flue gas promotion and open, while under the guiding of exhaust gas deflector 50, will increase
Gap and air inlet passage discharge of the big flue gas shunting between waste gas collection device 40 and shaft 20, realize flue gas
Interim emptying, and then avoid explosion accident.The straight trough type resistance furnace collected exhaust gas of course for guarantee and can be explosion-proof
The sealing of opened by pressure formula is also provided at the both ends of the efficiency emptied of 10 flue gas, waste gas collection device 40 and shaft 20 temporarily between
Curtain 60.
In the present embodiment, shaft 20 includes ventilative movable side wall 21, furnace core 22, and movable side wall 21 is enclosed with burner 30
Into region for accommodating furnace core and raw material, movable side wall 21 include chan frame 210, be embedded in it is saturating in chan frame 210
Gas wall 211, exhaust gas deflector 50 are relatively fixed with movable side wall 21, between having between exhaust gas deflector 50 and movable side wall 21
Gap, and the height of exhaust gas deflector 50 is less than the height of movable side wall 21.Waste gas collection device 40 includes cover 41, gas collecting tube
42nd, wind turbine 43, cover 41 are covered on ventilative wall 211, and first is provided on the position that cover 41 is contacted with ventilative wall 211
Between insulating blanket 70 and cover 41 and ventilative wall 211 there is gap, shaft is prevented thus by the first insulating blanket 70
20th, even electrical phenomena occurs between waste gas collection device 40, and then prevents the spray stove explosion accident caused by even electricity and occurs, gas collecting tube
42 are fixed in cover 41, and flue gas access aperture 420, gas collecting tube are offered on the tube wall being positioned in cover 41 of gas collecting tube 42
One end that 42 slave cover 41 stretches out is connect with wind turbine 43, and wind turbine 43 makes to generate negative pressure in gas collecting tube 42, so that above shaft
The flue gas and air of flue gas and exhaust gas deflector 50 guiding of diffusion are entered by flue gas access aperture 420 in gas collecting tube 42, and by
Wind turbine 43 is conveyed to extraneous flue gas processing device processing.
Further, waste gas collection device 40 further includes spraying cooling pipeline 44, and spraying cooling pipeline 44 is fixed on covering
In cover 41, spraying cooling pipeline 44 is parallel with gas collecting tube 42, and spraying cooling pipeline 44 is located at the lower section of gas collecting tube 42, so in carbon
After SiClx is smelted, it can spray water to achieve the purpose that fast cooling by spraying cooling pipeline 44, the institute in temperature-fall period
Flue gas, the steam of generation are collected by waste gas collection device 40 is delivered to extraneous flue gas processing device.
It is certainly contemplated that the assembling convenience in actual production process and safety, it can be by movable side wall 21, cover
41 modularizations, that is, multiple movable side walls 21 are assembled into shaft 20, multiple covers 41 assemble integral cover.For example,
Waste gas collection device 40 includes at least two covers 41, and gas collecting tube 42, spraying cooling pipe is fixedly installed in each cover 41
Road 44.Cover 41 includes the first transverse slat 410, the second transverse slat 411, third transverse slat 412 and from 410 both sides of the first transverse slat to downward
Two side plates 413 stretched out, the second transverse slat 411, third transverse slat 412 are corresponding to be fixedly connected with a side plate 413, the first transverse slat
410th, the second transverse slat 411, third transverse slat 412 are mutually parallel, and the first transverse slat 410 is located at the second transverse slat 411, third transverse slat 412
Top, in the second transverse slat 411, third transverse slat 412 be generally aligned in the same plane, and between the second transverse slat 411 and third transverse slat 412 away from
From the width more than the first transverse slat 410, the second transverse slat 411, third transverse slat 412 lower surface on support portion 414, support portion are set
First insulating layer 70 is set on 414；Vertical reinforcement is provided between 413 and second transverse slat 411 of side plate, third transverse slat 412
Muscle 415 is provided with cross reinforcing 416 between two side plates 413, and gas collecting tube 42 is fixedly connected with cross reinforcing 416 with reality
Existing gas collecting tube 42 is relatively fixed with cover 41, and spraying cooling pipeline 44 is fixedly connected to realize spray with cross reinforcing 416
Leaching cooling pipeline 44 is relatively fixed with cover 41；Opened by pressure formula sealing curtain 60, every collection are set between adjacent cover 41
One end of tracheae 42 is provided with telescopic Coupling 45, and second insulating layer 46, phase are provided on the inside of telescopic Coupling 45
Gas collecting tube 42 in adjacent cover 41 is interconnected by telescopic Coupling 45, and composition one is whole after each gas collecting tube 42 connects
Body gas collecting tube, one end sealing of whole gas collecting tube, the other end of whole gas collecting tube are connect with wind turbine 43.Wherein, the second transverse slat
The 411st, explosion-proof safety window 80 is set on third transverse slat 412.Heat safe stone may be used in first insulating layer 70, second insulating layer 46
Cotton material is made.One end of the first transverse slat 410 in cover 41 is provided with sealing curtain fixed plate 47, opened by pressure formula sealing curtain
60 one end is fixedly connected with sealing curtain fixed plate 47, and the other end of opened by pressure formula sealing curtain 60 is overlapped on adjacent cover
41 410 one end of the first transverse slat.Position required size of the size dimension of opened by pressure formula sealing curtain 60 according to where it
To determine.
Further, exhaust gas deflector 50 includes flue gas barrier plate 51, guiding flow distribution plate 52, the height of flue gas barrier plate 51
Less than the height of ventilative wall 211, the first end of guiding flow distribution plate 52 is fixedly connected with flue gas barrier plate 51, and guides flow distribution plate 52
Second end opened by pressure formula sealing curtain 60, opened by pressure are set on cover 41, the second transverse slat 411, third transverse slat 412
The free end of formula sealing curtain 60 is corresponding close to flue gas barrier plate 52, with hinder extraneous air from cover 41 and ventilative wall it
Between gap enter, so promote flue gas and the air that enters from 50 bottom of exhaust gas deflector be preferably to waste gas collection device 40
Flowing；Further, the distance of the second end of guiding flow distribution plate 52 to shaft 20, which is less than, guides the first end of flow distribution plate 52 to stove
The distance of body 20, so under the guiding of guiding flow distribution plate 52, by the increased flue gas in waste gas collection device 40（The cigarette
Gas mainly includes carbon dioxide, dust）Most of gap discharge between waste gas collection device 40 and shaft 20 will be located at useless
Increased flue gas small part in gas collection device 40 is guided between flue gas barrier plate 51 and shaft 20, utilizes the increase of entrance
Flue gas and the air that enters from the external world by the flue gas between flue gas barrier plate 51 and shaft 20（The flue gas mainly includes powder
Dirt, carbon monoxide）Temporary closing, pressure is restored to just in the region surrounded in waste gas collection device 40 and exhaust gas deflector 50
During normal production standard, then guided by waste gas collection device 40 and to be conveyed to extraneous flue gas processing device and handle.Flue gas barrier plate
51 are equipped with explosion-proof safety window 80, and flue gas barrier plate 51 tilts 2~15 degree to ventilative 211 direction of wall, so that explosion-proof safety window 80
Closing can be realized under the action of own wt, is further ensured that and avoids explosion accident.
Claims (10)
1. a kind of straight trough type resistance furnace collected exhaust gas and can be explosion-proof, it is characterised in that：The shaft that is contacted with ground, burner,
Waste gas collection device and exhaust gas deflector.Waste gas collection device is arranged on above shaft, and exhaust gas deflector is arranged on the two of shaft
Side, there are gaps between exhaust gas deflector and shaft, have the air entered for outside air between exhaust gas deflector and ground
Into channel, exhaust gas deflector is used to stop the flue gas generated in shaft to two side diffusion of shaft, and guides flue gas and from exhaust gas
The air that deflector bottom enters is flowed to waste gas collection device, and waste gas collection device is used for the flue gas that will be spread to shaft top
And extraneous flue gas processing device processing is conveyed to after the flue gas and air trapping of exhaust gas deflector guiding, waste gas collection device with
Between shaft there is gap, when the air pressure in region surrounded in waste gas collection device and exhaust gas deflector increases suddenly, utilize
The gap flue gas that collects of release is to reduce air pressure.
2. the straight trough type resistance furnace according to claim 1 collected exhaust gas and can be explosion-proof, it is characterised in that：Gas sampling
Opened by pressure formula sealing curtain is set between device and exhaust gas deflector, opened by pressure formula sealing curtain be used to hindering extraneous air from
Gap between waste gas collection device and shaft enters, and opened by pressure formula sealing curtain is additionally operable to lead in waste gas collection device and exhaust gas
The region internal pressure in flowing plate besieged city is powerful to open when the pressure-bearing value of its own, to discharge the flue gas collected.
3. the straight trough type resistance furnace according to claim 2 collected exhaust gas and can be explosion-proof, it is characterised in that：Gas sampling
Opened by pressure formula sealing curtain is also provided between device and the both ends of shaft.
4. the straight trough type resistance furnace according to claim 2 collected exhaust gas and can be explosion-proof, it is characterised in that：Gas sampling
Device includes cover, gas collecting tube, wind turbine, and cover is covered on ventilative wall, is set on the position that cover is contacted with ventilative wall
It is equipped with the first insulating blanket and there is gap between cover and ventilative wall, gas collecting tube is fixed in cover, the position of gas collecting tube
In offering flue gas access aperture on the tube wall in cover, one end that the slave cover of gas collecting tube stretches out is connect with wind turbine, wind turbine
Make to generate negative pressure in gas collecting tube, so that the flue gas and air of flue gas and exhaust gas the deflector guiding spread above shaft pass through flue gas
Access aperture enters in gas collecting tube, and is conveyed to extraneous flue gas processing device by wind turbine and handles.
5. the straight trough type resistance furnace according to claim 4 collected exhaust gas and can be explosion-proof, it is characterised in that：Gas sampling
Device further includes spraying cooling pipeline, and spraying cooling pipeline is fixed in cover, and spraying cooling pipeline is parallel with gas collecting tube, spray
Leaching cooling pipeline is located at the lower section of gas collecting tube.
6. the straight trough type resistance furnace according to claim 4 collected exhaust gas and can be explosion-proof, it is characterised in that：Gas sampling
Device includes at least two covers, and gas collecting tube, spraying cooling pipeline are fixedly installed in each cover, and cover includes first
Transverse slat, the second transverse slat, third transverse slat and two side plates extended downwardly out from the first transverse slat both sides, the second transverse slat, third transverse slat
Corresponding to be fixedly connected with a side plate, the first transverse slat, the second transverse slat, third transverse slat are mutually parallel, and the first transverse slat is located at the
Two transverse slats, above third transverse slat, in the second transverse slat, third transverse slat are generally aligned in the same plane, and between the second transverse slat and third transverse slat
Distance be more than the first transverse slat width, the second transverse slat, third transverse slat lower surface on support portion is set, institute is set on support portion
State the first insulating layer；Vertical strengthening ribs are provided between side plate and the second transverse slat, third transverse slat, horizontal stroke is provided between two side plates
To reinforcing rib, gas collecting tube is fixedly connected to realize being relatively fixed for gas collecting tube and cover, spraying cooling pipe with cross reinforcing
Road is fixedly connected to realize that spraying cooling pipeline and cover are relatively fixed with cross reinforcing；Pressure is set between adjacent cover
Power open-type sealing curtain, one end of every gas collecting tube are provided with telescopic Coupling, are provided on the inside of telescopic Coupling
Second insulating layer, the gas collecting tube in adjacent cover are interconnected by telescopic Coupling, are formed after each gas collecting tube connection
One whole gas collecting tube, one end sealing of whole gas collecting tube, the other end of whole gas collecting tube are connect with wind turbine.
7. the straight trough type resistance furnace according to claim 6 collected exhaust gas and can be explosion-proof, it is characterised in that：Second is horizontal
Explosion-proof safety window is set on plate, third transverse slat.
8. the straight trough type resistance furnace according to claim 1 or 2 collected exhaust gas and can be explosion-proof, it is characterised in that：Exhaust gas
Deflector includes flue gas barrier plate, guiding flow distribution plate, and the height of flue gas barrier plate is less than the height of ventilative wall, guides flow distribution plate
First end is fixedly connected with flue gas barrier plate, and the second end of flow distribution plate is guided to guide flow distribution plate close to waste gas collection device
The distance of second end to shaft is less than the first end of guiding flow distribution plate to the distance of shaft, will under the guiding of guiding flow distribution plate
The most of gap discharge between waste gas collection device and shaft of increased flue gas in waste gas collection device, will be located at
Increased flue gas small part in waste gas collection device is guided between flue gas barrier plate and shaft, utilizes the increased cigarette of entrance
Gas and the air that enters from the external world are by the temporary closing of the flue gas between flue gas barrier plate and shaft.
9. the straight trough type resistance furnace according to claim 8 collected exhaust gas and can be explosion-proof, it is characterised in that：The flue gas
Barrier plate is equipped with explosion-proof safety window, and flue gas barrier plate tilts 2~15 degree to ventilative wall direction, so that explosion-proof safety window can be certainly
It realizes and closes under the action of body weight.
10. the straight trough type resistance furnace according to claim 1 collected exhaust gas and can be explosion-proof, it is characterised in that：Shaft packet
Ventilative movable side wall, furnace core are included, for accommodating furnace core and raw material, movable side wall includes in the region that movable side wall is surrounded with burner
Chan frame, the ventilative wall being embedded in chan frame, exhaust gas deflector are relatively fixed with movable side wall, exhaust gas deflector and work
There is gap, and the height of exhaust gas deflector is less than the height of movable side wall between dynamic side wall.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711214908 | 2017-11-28 | ||
| CN2017112149082 | 2017-11-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108178158A true CN108178158A (en) | 2018-06-19 |
| CN108178158B CN108178158B (en) | 2022-11-01 |
Family
ID=62551040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810057064.3A Active CN108178158B (en) | 2017-11-28 | 2018-01-22 | Straight-groove type resistance furnace capable of collecting waste gas and preventing explosion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108178158B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101555010A (en) * | 2008-04-12 | 2009-10-14 | 于旭宏 | Carborundum |
| CN201817287U (en) * | 2010-10-19 | 2011-05-04 | 平罗县滨河碳化硅制品有限公司 | Negative pressure silicon carbide smelting furnace |
-
2018
- 2018-01-22 CN CN201810057064.3A patent/CN108178158B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101555010A (en) * | 2008-04-12 | 2009-10-14 | 于旭宏 | Carborundum |
| CN201817287U (en) * | 2010-10-19 | 2011-05-04 | 平罗县滨河碳化硅制品有限公司 | Negative pressure silicon carbide smelting furnace |
Non-Patent Citations (1)
| Title |
|---|
| 杨文杰 等主编: "《金属热加工设备及工艺》", 30 June 2014 * |
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