CN106091677B - A kind of interior heating ceramic liner rotary furnace - Google Patents
A kind of interior heating ceramic liner rotary furnace Download PDFInfo
- Publication number
- CN106091677B CN106091677B CN201610072821.5A CN201610072821A CN106091677B CN 106091677 B CN106091677 B CN 106091677B CN 201610072821 A CN201610072821 A CN 201610072821A CN 106091677 B CN106091677 B CN 106091677B
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- Prior art keywords
- roller
- layer
- heating part
- dust cover
- rack
- Prior art date
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 64
- 239000000919 ceramic Substances 0.000 title claims abstract description 48
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 17
- 239000010935 stainless steel Substances 0.000 claims abstract description 16
- 238000001816 cooling Methods 0.000 claims description 34
- 239000000428 dust Substances 0.000 claims description 26
- 238000007789 sealing Methods 0.000 claims description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 7
- 229910052799 carbon Inorganic materials 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 5
- 238000009413 insulation Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 abstract description 53
- 230000000694 effects Effects 0.000 abstract description 15
- 238000001354 calcination Methods 0.000 abstract description 13
- 230000007797 corrosion Effects 0.000 abstract description 5
- 238000005260 corrosion Methods 0.000 abstract description 5
- 238000004321 preservation Methods 0.000 abstract description 3
- 241001131688 Coracias garrulus Species 0.000 description 54
- 238000000034 method Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 6
- 239000011449 brick Substances 0.000 description 5
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 3
- 229910052744 lithium Inorganic materials 0.000 description 3
- 239000007769 metal material Substances 0.000 description 3
- 239000010936 titanium Substances 0.000 description 3
- 229910052719 titanium Inorganic materials 0.000 description 3
- 239000010405 anode material Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 229910000885 Dual-phase steel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000013070 direct material Substances 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 210000000232 gallbladder Anatomy 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000005439 thermosphere Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
- F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
- F27B7/34—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
- F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
- F27B7/10—Rotary-drum furnaces, i.e. horizontal or slightly inclined internally heated, e.g. by means of passages in the wall
-
- 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
- F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
- F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
- F27B7/28—Arrangements of linings
Abstract
A kind of interior heating ceramic liner rotary furnace provided by the invention, is separated stainless steel layer and material using ceramic layer, and corrosion of volatile matter when preventing material calcining to stainless steel layer optimizes the burning quality of material；Heating part successively includes stainless steel layer from outside to inside, first insulating brick-layer, second insulating brick-layer, resistance wire conduit, ceramic layer, resistive heater is provided in resistance wire conduit, resistive heater obtain it is electric after generate heat, the heat heats the material in roller by ceramic layer, due to being equipped with ceramic layer between resistance wire conduit and material, resistive heater does not directly heat material, so that material is heated evenly, heating part is optimized to the calcining effect of material, and the first insulating brick-layer, second insulating brick-layer plays the effect of heat preservation, reduce thermal loss.
Description
Technical field
The present invention relates to rotary furnace fields, and in particular to a kind of interior heating ceramic liner rotary furnace.
Background technique
Rotary furnace is one kind of heating furnace, due to that can be turned round in its heating process, the material in furnace is heated
Uniformly, so that rotary furnace is widely used in the industry.
The calcination reaction of anode material of lithium battery in the prior art, cobalt acid lithium and ternary material is all made of pushed bat kiln, roller-way
Kiln is calcined, and rotary furnace is applied to not having substantially for anode material of lithium battery production, and main problem is in the prior art time
Converter structure setting is unreasonable, and rotary furnace in the prior art includes roller, is fixed with outside roller and to be heated to roller
Heating unit, and material is located in roller in specific calcination process, therefore rotary furnace thermal loss is big, serious waste of resources；Separately
Outer rotary furnace in the prior art, flue is using metal materials such as titanium, stainless steel, high temperature dual phase steels, and material is in rotary furnace
When calcining, the volatile materials of generation generates corrosion to the flue of metal material, influences the service life of flue, and because corrosion generates
Magnetic material enter material, influence product quality, in addition rotary furnace in the prior art, flue use titanium, stainless steel, high temperature
The metal materials such as dual phase steel, high-temperature behavior is bad, even especially titanium materials'use temperature restriction have 650 DEG C hereinafter, high
Warm stainless steel also will be aoxidized gradually, strength reduction between 800-1200 DEG C.
Summary of the invention
A kind of interior heating ceramic liner rotary furnace provided by the invention, it is intended to rotary furnace heat in the prior art be overcome to damage
Lose the deficiency of big, corrosion resistance and heat-resisting quantity difference.
In order to solve the above-mentioned technical problem, the present invention adopts the following technical scheme: a kind of interior heating ceramic liner rotary furnace,
Including rack, roller is rotatably connected in the rack, the roller includes preheating part, and the roller further includes cooling end,
Heating part is equipped between preheating part and cooling end, the preheating part is communicated with heating part, and the heating part is communicated with cooling end, institute
Heating part is stated successively to lead including stainless steel layer, the first insulating brick-layer, the second insulating brick-layer, resistance wire conduit, ceramics from outside to inside
Thermosphere, resistive heater is provided in the resistance wire conduit, and the ceramic layer is equipped with lifting blade, the ceramic
Layer is further fixed on carbon brush component, the carbon brush component and heating electricity between lifting blade and resistance wire conduit on the roller
Hinder silk electrical connection.
In above-mentioned composition, heating part from outside to inside successively include stainless steel layer, the first insulating brick-layer, the second insulating brick-layer,
Resistance wire conduit, ceramic layer, the material in roller are contacted with ceramic layer, and heating electricity is equipped in resistance wire conduit
Hinder silk, resistive heater obtain it is electric after generate heat, material is heated through ceramic layer, the material in roller is heated
Uniformly, and the first insulating brick-layer, the second insulating brick-layer play the purpose of heat preservation, reduce the thermal loss of roller, have saved money
Source；In addition, the lifting blade being fixed on ceramic layer plays the role of lifting, i.e. roller is located in roller during rotation
Material can be stopped by lifting blade, avoid be located at roller in material in roller rotation process along ceramic layer slide, from
And the material in roller is heated evenly, and sufficiently uniform with air, improve the calcining effect of roller.
A kind of optional scheme, the lifting blade perpendicular to ceramic layer, and the length direction of the lifting blade with
The axis of roller is parallel.For roller in turning course, lifting blade has better lifting effect, further improves forging for roller
Burn effect.
A kind of optional scheme, the axis of the roller and the angle of horizontal plane are 1 degree to 3 degree, and the preheating part erects
Straight height is higher than the vertical height of cooling end.The setting is so that the material discharge in roller is very convenient, since roller has centainly
Tilt angle it is easy to operate so that material can be completely exhausted out.
A kind of optional scheme is further fixed on the insulation cover being located at outside heating part in the rack.Insulation cover plays pair
The effect that heating part is kept the temperature, further reduces thermal loss, has saved resource.
A kind of optional scheme is fixed with the driving motor of driving roller rotation in the rack, rotates in the rack
It is connected with minor sprocket, the minor sprocket is driven by driving motor, and the roller is equipped with big sprocket wheel, between big sprocket wheel and minor sprocket
Equipped with transmission chain, the idler wheel of support roller is rotatably connected in the rack.Driving motor drives roller rotation by transmission chain,
Belt Drive in compared with the existing technology, roller have higher rotation precision, improve the calcining effect of roller.
A kind of optional scheme is equipped with retarder between the driving motor and minor sprocket.The revolving speed of driving motor is by subtracting
Fast device slows down, compared with the existing technology in use speed regulating motor, reduce the operation of interior heating ceramic liner rotary furnace at
This.
A kind of optional scheme, the interior heating ceramic liner rotary furnace further include feeding device and discharge gate, the charging
Device is communicated with preheating part, and charging dust cover is equipped between the feeding device and preheating part, and the cooling end is equipped with discharge
Dust cover, the discharge dust cover are communicated with cooling end, and discharge dust cover lower end offers discharge gate.Charging dust cover,
Discharge dust cover plays dust-proof effect, avoids introduced contaminants pollution from being located at the material in roller, optimizes in interior heating ceramic
The calcining effect of gallbladder rotary furnace.
A kind of optional scheme, is equipped with the first sealing ring between charging dust cover and the heating part, the discharge is dust-proof
The second sealing ring is equipped between cover and cooling end.First sealing ring, the second sealing ring play the effect of sealing, are reducing heat damage
Impurity can also be avoided to enter in roller under the premise of mistake, advanced optimize the calcining matter of interior heating ceramic liner rotary furnace
Amount.
A kind of optional scheme is additionally provided with the air inlet pipe that gas is supplied into heating part, the air inlet on the roller
Pipe communicates after discharge dust cover, cooling end with heating part, and the charging dust cover is equipped with escape pipe.Air inlet pipe passes through row
Expect dust cover, enter heating part after cooling end, can to avoid opening up the through-hole for wearing air inlet pipe on heating part so that plus
Hot portion has good sealing effect, reduces thermal loss.
Compared with prior art, a kind of interior heating ceramic liner rotary furnace provided by the invention, has the advantages that heating
Portion from outside to inside successively include stainless steel layer, the first insulating brick-layer, the second insulating brick-layer, resistance wire conduit, ceramic layer,
Be provided with resistive heater in resistance wire conduit, resistive heater obtain it is electric after generate heat, the heat is right by ceramic layer
Material in roller is heated, and due to being equipped with ceramic layer between resistance wire conduit and material, resistive heater is not direct
Material is heated, so that material is heated evenly, optimizes heating part to the calcining effect of material, and the first insulating brick
Layer, the second insulating brick-layer play the effect of heat preservation, reduce thermal loss, have saved resource, and ceramic layer can will be stainless
Steel layer is separated with material, and corrosion of volatile matter when preventing material calcining to stainless steel layer optimizes the burning quality of material；Separately
Outside, the lifting blade on ceramic layer is set, can be slided to avoid material when roller rotation along ceramic layer, be played and stir
The effect of material has advanced optimized heating part to the burning quality of material so that the material in roller is heated evenly.
Detailed description of the invention
Attached drawing 1 is a kind of main view of interior heating ceramic liner rotary furnace of the present invention；
Attached drawing 2 is cross-sectional view at A-A in attached drawing 1.
Specific embodiment
With reference to the accompanying drawing, a kind of interior heating ceramic liner rotary furnace of the invention is described further.As shown in Figure 1, Figure 2
Shown, a kind of interior heating ceramic liner rotary furnace, including rack 1 is rotatably connected to roller 2, the rack 1 in the rack 1
On be provided with two pairs of idler wheels 17, the both ends that two pairs of idler wheels 17 are located at rack 1 are used to support roller 2, and the idler wheel 17 rotates
It is connected in rack 1, the fixing axle of fixed idler whell 17 is welded in rack 1, rolling bearing is equipped between idler wheel 17 and fixing axle,
The quantity of idler wheel 17 more more then rollers 2 are more stable when rotating, and when specific implementation can be with the quantity of unrestricted choice idler wheel 17, the rolling
Cylinder 2 is driven by driving motor 14, and the driving motor 14 is bolted in rack 1, is rotatably connected in the rack 1
Minor sprocket 15, minor sprocket 15 are rotatably connected in rack 1 by sprocket shaft, and the minor sprocket 15 is driven by driving motor 14,
Retarder 18 is equipped between driving motor 14 and minor sprocket 15, the kinetic energy of driving motor 14 is first transferred to retarder 18, then again
By retarder 18 by the transferring kinetic energy of driving motor 14 to minor sprocket 15, big sprocket wheel 16 has been bolted on the roller 2,
Transmission chain is equipped between big sprocket wheel 16 and minor sprocket 15, the rotation of driving motor 14 can drive roller 2 to rotate by transmission chain, from
And the material being located in roller 2 is heated evenly；
Referring to Fig. 1, the roller 2 includes preheating part 3, and the preheating part 3 is preheating device in the prior art, described
Roller 2 further includes cooling end 4, and the cooling end 4 is cooling device in the prior art, it is contemplated that cooling cost, it is preferential to select
The water cooling plant in existing technology is selected, heating part 5, the preheating part 3 and heating part 5 are equipped between preheating part 3 and cooling end 4
It communicates, the heating part 5 is communicated with cooling end 4；The preheating part 3, cooling end 4 can be fixed on heating part 5, certainly, in advance
Hot portion 3, cooling end 4 can also be an integral structure with heating part 5；
Referring to fig. 2, the heating part 5 successively includes stainless steel layer 6, the first insulating brick-layer 7, the second insulating brick from outside to inside
Layer 8, resistance wire conduit 9, ceramic layer 10, the stainless steel layer 6 preferentially select 304 stainless steels, first insulating brick-layer
7, the second insulating brick-layer 8 is assembled to form by light weeight alumina brick, and the ceramic layer 10 is filled by 99.5% aluminium oxide special form brick
With formation, play the role of making material thermally equivalent, avoid material contaminated, ceramic layer 10 can by stainless steel layer 6 with
Material separates, and avoids material and reacts with stainless steel layer 6, optimizes the burning quality of material, the resistance wire conduit 9 by
99 porcelain are made；Resistive heater is provided in the resistance wire conduit 9, the ceramic layer 10 is equipped with lifting blade 11, institute
Stating lifting blade 11 can be formed by the special shaped brick of formation ceramic layer 10, the lifting blade 11 perpendicular to ceramic layer 10,
And the length direction of the lifting blade 11 is parallel with the axis of roller 2, so that lifting blade 11 can preferably stir in roller 2
Material, the material in roller 2 is heated evenly, and the ceramic layer 10 is between lifting blade 11 and resistance wire conduit 9, institute
It states and is further fixed on carbon brush component 12 on roller 2, the carbon brush component 12 is electrically connected with resistive heater, and power supply is through carbon brush component 12
It powers to resistive heater；In order to further be kept the temperature to roller 2, it is further fixed on and is located at outside heating part 5 in the rack 1
Insulation cover 13, which can be fixed in rack 1 by any fixed form；
When it is implemented, material is entered in preheating part 3 by feeding device 19, the preheated portion 3 of material, heating part 5, cooling
Portion 4 is discharged after handling, which should also include feeding device 19 and discharge gate 20, the feeding device
19 communicate with preheating part 3, and charging dust cover 21, the charging dust cover 21 are equipped between the feeding device 19 and preheating part 3
Be equipped with the first sealing ring between heating part 5, the cooling end 4 is equipped with discharge dust cover 22, the discharge dust cover 22 with
Cooling end 4 communicates, and the second sealing ring, 22 lower end of discharge dust cover are equipped between the discharge dust cover 22 and cooling end 4
Offer discharge gate 20；
For the ease of 2 discharge of roller, the axis of the roller 2 and the angle of horizontal plane are 1 degree to 3 degree, the preheating part 3
Vertical height be higher than the vertical height of cooling end 4, roller 2 is in heeling condition, and when discharge can be completely exhausted out positioned at roller 2
Interior material；
Material may need to feed in calcination process gas into roller 2, be additionally provided on the roller 2 to heating part
The air inlet pipe 23 of supply gas, the air inlet pipe 23 communicate after passing through discharge dust cover 22, cooling end 4 with heating part 5 in 5, with
It avoids opening up through-hole on heating part 5 and causes thermal loss, the charging dust cover 21 is equipped with escape pipe 24.
Above scheme in the specific implementation process, is first turned on driving motor 14, drives roller 2 to revolve by driving motor 14
Turn, then material is added in preheating part 3 by feeding device, material enters heating part 5 after preheating in preheating part 3 and forged
It burns, enters the cooling of cooling end 4 after the material heat treatment in heating part 5, finally material is discharged by discharge gate 20, it is complete
At entire calcination process；Resistive heater in above-mentioned technical proposal be located at the second insulating brick-layer 8, with ceramic layer 10 it
Between, thermal loss is substantially reduced, resource has been saved.
Certainly, the preheating part 3 in above scheme can also be replaced by material channel, at this point, heating part 5 should be divided into three temperature
Area is spent, i.e., close to the low-temperature space of preheating part 3, close to the high-temperature region of cooling end 4, material is preheated in heating part 5, the program
Thermal loss can be further decreased, interior heating ceramic liner rotary furnace runnability is optimized.
In above-mentioned technical proposal the assembly method of each component referring to rotary furnace in the prior art assembly method so that this hair
Bright disclosed technical solution is convenient for the implementation of those skilled in the art.
The above is only the preferred embodiment of the present invention, it is intended to embody protrusion technical effect and advantage of the invention, not
It is the limitation to technical solution of the present invention.Those skilled in the art will appreciate that all are based on the technology of the present invention content
Modification, variation or the substitute technology feature made should all be covered by the technology scope that appended claims of the present invention are advocated
It is interior.
Claims (1)
1. a kind of interior heating ceramic liner rotary furnace, including rack (1), roller (2) are rotatably connected on the rack (1),
Be characterized in that: the roller (2) includes preheating part (3), and the roller (2) further includes cooling end (4), preheating part (3) with it is cold
But heating part (5) are equipped between portion (4), the preheating part (3) communicates with heating part (5), the heating part (5) and cooling end
(4) it communicates, the heating part (5) successively includes stainless steel layer (6), the first insulating brick-layer (7), the second insulating brick-layer from outside to inside
(8), resistance wire conduit (9), ceramic layer (10), the resistance wire conduit (9) is interior to be provided with resistive heater, the ceramics
Heat-conducting layer (10) is equipped with lifting blade (11), the ceramic layer (10) be located at lifting blade (11) and resistance wire conduit (9) it
Between, it is further fixed on carbon brush component (12) on the roller (2), the carbon brush component (12) is electrically connected with resistive heater；It is described
Lifting blade (11) is perpendicular to ceramic layer (10), and the length direction of the lifting blade (11) and the axis of roller (2) are flat
Row；The axis of the roller (2) and the angle of horizontal plane are 1 degree to 3 degree, and the vertical height of the preheating part (3) is higher than cooling
The vertical height in portion (4)；It is further fixed on the rack (1) and is located at the insulation cover (13) of heating part (5) outside；The rack
(1) it is fixed with the driving motor (14) of driving roller (2) rotation on, is rotatably connected to minor sprocket (15), institute on the rack (1)
It states minor sprocket (15) to be driven by driving motor (14), the roller (2) is equipped with big sprocket wheel (16), big sprocket wheel (16) and minor sprocket
(15) it is equipped with transmission chain between, the idler wheel (17) of support roller (2) is rotatably connected on the rack (1)；The driving motor
(14) retarder (18) are equipped between minor sprocket (15)；The interior heating ceramic liner rotary furnace further include feeding device (19) and
Discharge gate (20), the feeding device (19) communicate with preheating part (3), set between the feeding device (19) and preheating part (3)
Have charging dust cover (21), the cooling end (4) is equipped with discharge dust cover (22), the discharge dust cover (22) and cooling end
(4) it communicates, discharge dust cover (22) lower end offers discharge gate (20)；The charging dust cover (21) and heating part (5)
Between be equipped with the first sealing ring, equipped with the second sealing ring between the discharge dust cover (22) and cooling end (4)；The roller
(2) air inlet pipe (23) of the supply gas into heating part (5) is additionally provided on, the air inlet pipe (23) passes through discharge dust cover
(22), cooling end (4) is communicated with heating part (5) afterwards, and the charging dust cover (21) is equipped with escape pipe (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610072821.5A CN106091677B (en) | 2016-02-01 | 2016-02-01 | A kind of interior heating ceramic liner rotary furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610072821.5A CN106091677B (en) | 2016-02-01 | 2016-02-01 | A kind of interior heating ceramic liner rotary furnace |
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| Publication Number | Publication Date |
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| CN106091677A CN106091677A (en) | 2016-11-09 |
| CN106091677B true CN106091677B (en) | 2019-08-06 |
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| CN201610072821.5A Active CN106091677B (en) | 2016-02-01 | 2016-02-01 | A kind of interior heating ceramic liner rotary furnace |
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| WO2017107532A1 (en) * | 2015-12-21 | 2017-06-29 | 格林美股份有限公司 | Internal heating ceramic liner rotary furnace |
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| CN114166019A (en) * | 2021-11-10 | 2022-03-11 | 湖南德景源科技有限公司 | Powder material sintering furnace |
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| CN2155542Y (en) * | 1993-03-15 | 1994-02-09 | 吉林省浑江市林业综合技术研究所 | Dynamic electric roasting apparatus for diatomite filter aid |
| CN201053814Y (en) * | 2007-06-22 | 2008-04-30 | 咸阳陶瓷研究设计院 | Heat-tolerant metal furnace tube continuous external heating type protective atmosphere converter |
| CN202792921U (en) * | 2012-09-29 | 2013-03-13 | 河南省裕兴陶粒有限公司 | Double-layer lining type rotary kiln used for producing ceramsite sand |
| CN203421953U (en) * | 2013-07-25 | 2014-02-05 | 河南鸿昌电子有限公司 | Crystal bar heating furnace |
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| CN106091677A (en) | 2016-11-09 |
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