CN107166965A - A kind of multiple hearth furnace castable furnace lining structure - Google Patents
A kind of multiple hearth furnace castable furnace lining structure Download PDFInfo
- Publication number
- CN107166965A CN107166965A CN201710593373.8A CN201710593373A CN107166965A CN 107166965 A CN107166965 A CN 107166965A CN 201710593373 A CN201710593373 A CN 201710593373A CN 107166965 A CN107166965 A CN 107166965A
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- CN
- China
- Prior art keywords
- castable
- furnace
- multiple hearth
- furnace lining
- pallet
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- 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
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- 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
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/10—Monolithic linings; Supports therefor
-
- 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
- F27D1/00—Casings; Linings; Walls; Roofs
-
- 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
- Y02P10/20—Recycling
Abstract
The present invention relates to a kind of multiple hearth furnace castable furnace lining structure.The castable furnace lining of the multiple hearth furnace castable furnace lining structure, in the inner surface of shell, and is fixed on shell by refractory material one-piece casting by metal anchorage.The furnace lining structure includes being provided with metal anchorage in multiple castable pallets, castable pallet.Castable furnace lining and castable pallet, which are divided between multiple blocks, each block, reserves expansion clearance, and is connected between each block by metal anchorage.The multiple hearth furnace castable furnace lining structure resistance to overturning of the present invention is high, and castable pallet is difficult to collapse, and does not overhaul the life-span and greatly prolongs, and the transformation of the way of furnace lining or repair it is simple and easy to apply, it is applied widely.
Description
Technical field
The present invention relates to a kind of furnace lining structure, more particularly to a kind of multiple hearth furnace castable furnace lining structure.
Background technology
Multiple hearth furnace has extensive purposes, such as non-ferrous metal metallurgy purification, sludge incineration, activated carbon in smelting chemical industry
Regeneration, magnesia calcination, ore treatment etc..
Fig. 1 is multiple hearth furnace of the prior art, and it is upright fixed circular body of heater, and shell 1 is a metallic cylinder, circle
It is refractory brick furnace lining 2 in cylinder shell, there is bell 3 top.Multiple hearth furnace liner complexity is overlapping, and its inner space is separated by vertical direction
Into tens of layer plane separations, the plane brick pallet 4 of laying fireproof bricks is both the dividing wall of plane separation, is support thing to be decomposed again
" the plane pallet " of material, whole furnace lining is formed with tens kinds of special shape laying fireproof bricks specially designed.
Body of heater center is to be mounted with scrapper conveyor in a mechanical rotating shaft 5 from bottom of furnace body at the top of leading directly to, rotating shaft,
Uniform several armshafts with scraper plate, stretch to from mechanical rotating shaft 5 and are covered in above " plane pallet " on scrapper conveyor central shaft
Treating material.In work, treating material continually enters " plane pallet " from charge door, and scrapper conveyor turns with rotating shaft
Dynamic, the scraper plate on armshaft stretched out on scrapper conveyor overturns the material on " flat pallet " back and forth, material is contacted heat smoke, makes original
Harmful element in material evaporates into flue gas in high temperature and drained, and treated material then flows from the discharge opening specially set
Go out.
In existing multiple hearth furnace, furnace lining in body of heater is all built by laying bricks or stones with using quarl, the intensity of furnace lining and stably
Property is all maintained by the lateral pressure of the generation that mutually reclines at supporting force between special shaped brick and special shaped brick edge.It is this to pile up formula
Furnace lining has obvious design defect at temperature and mechanical agitation, the state of the art of material turnover in structural stability, main
Show the following aspects：
1., formed by a variety of special shape laying fireproof bricks due to refractory brick furnace lining, nothing between metal shell and refractory brick furnace lining
Method is closely linked, in actual use, and mechanical oscillation can cause to relatively move between shell and refractory brick furnace lining,
Therefore integrally there is unstability in multiple hearth furnace, and with the increase of use time, this unstability is also continuously increased, performance
Deformation for furnace lining and collapse；
2., " the plane pallet " that stretches to body of heater center that is formed with the extruding that mutually reclines at special shaped brick edge, shape is that outer rim is thick,
Center is thin, and outer rim lining thickness is more than 3 times of center lining thickness.And the outer rim position of " plane pallet " is due to close to body of heater
Side wall, stability itself is just better than central location, and refractory material consumption is big, and " plane pallet " central concentrated load is big, service condition
Harshness, refractory lining is frivolous much on the contrary, and the thinnest part at center only has about 115mm thickness, is stirred in weight of material, scrapper conveyor
Under mechanical oscillation during dynamic, central axis, structure can not be stablized, in addition the swell increment of " plane pallet " and expansion direction and side
Fireplace lining is different, in long-term use, and the centre of " plane pallet " turns into the position for being easiest to damage and collapsing；
Once collapsing for " plane pallet " the 3, is produced, because the separation space in the middle of every layer " plane pallet " is very narrow and small, this
The furnace lining of repairing " plane pallet " is extremely difficult in narrow space, easily occurs industrial injury in maintenance, maintenance cost is also very high；
4th, because traditional furnace lining is formed by laying fireproof bricks, in order to keep the stabilization of furnace lining, the shape and charging aperture of furnace lining,
Discharging opening, the quantity of refractory brick pallet, shape and position etc. are all severely restricted, it is difficult to make suitable according to actual needs
Change, the strength stability of whole furnace lining may be influenceed reluctantly by being changed, and therefore the application of multiple hearth furnace is limited
System.
The content of the invention
The present invention is in order to which the plane pallet stability for solving multiple hearth furnace in the prior art is poor, easily collapse, repair difficult and dimension
Accomplish the problem of this is high, it is proposed that a kind of multiple hearth furnace castable furnace lining structure, the entire combination stove poured using high-strength castable
Lining, is all connected whole multiple hearth furnace liner and outer box hat, furnace lining is hung on outer box hat.
The multiple hearth furnace castable furnace lining structure of the present invention includes shell, bell, furnace bottom, castable furnace lining, castable pallet,
The castable furnace lining and castable pallet are poured by refractory casting material to be formed.
The shell can be metallic cylinder or the other shapes designed as needed.
The bell covers whole furnace roof and closed.
The furnace bottom is located at the multiple hearth furnace bottom, for supporting whole furnace lining structure.
The castable furnace lining by refractory casting material one-piece casting inside the housing, and, shell closely coupled with shell
Inner surface setting has metal anchorage, the bond strength for strengthening castable furnace lining and shell.
In the furnace lining structure, multiple castable pallets are provided with from top to bottom, so that burner hearth is divided into multiple separations,
The castable pallet is poured by refractory casting material to be formed, and metal anchorage is provided with, for strengthening the castable
The intensity of pallet.
One or more charging apertures can be arranged on bell and/or top layer separation, can also be arranged on top layer separation and
If on the dried layer separation below top layer separation, can also be arranged on below bell and/or top layer separation and top layer separation simultaneously
If on dried layer separation.Treating material enters multiple hearth furnace via one or more charging apertures on bell and/or each layer separation.
One or more discharging openings can be arranged on furnace bottom and/or bottom separation, can also be arranged on bottom separation and
If on the dried layer separation above bottom separation, can also be arranged on above furnace bottom and/or bottom separation and bottom separation simultaneously
If on dried layer separation.Material after processing discharges multiple hearth furnace through one or more discharging openings on furnace bottom and/or each layer separation.
The furnace lining structure is successively independently poured according to the position of castable pallet, and expansion clearance is provided between each layer,
And every layer of castable furnace lining and castable pallet, which is all divided between some blocks, each block, is also equipped with expansion clearance, use
Due to the stress of thermal expansion generation in reduction production process.Fixed and connected by metal anchorage between individual block between each layer
Connect.
The castable pallet is provided with feed opening near circumference, or is formed between home position and mechanical rotating shaft
Feed opening, both castable pallets are arranged alternately, so that material is from top to bottom in flowing in a zigzag.
This furnace lining structure of the present invention, is the once change in hot equipment construction material and building structure, can be thorough
Solve that existing laying fireproof bricks multiple hearth furnace lining stability is poor, be easily deformed the problem of collapsing, make multiple hearth furnace does not overhaul the life-span
Greatly prolong.It is in particular in the following aspects：
1）Furnace lining is formed by fire resisting pouring material one-piece casting, makes whole body of heater furnace lining one integrated mass, the stability and intensity of furnace lining
Piled up relative to being reclined by a variety of refractory brick form, furnace lining is covered with the refractory brick furnace lining of brickwork joint and is significantly improved everywhere, and
Due to having used metal anchorage, the adhesion of furnace lining and shell is greatly enhanced, it is to avoid the relative shifting between shell and furnace lining
Dynamic, the stability of a system is remarkably reinforced.
2）Because flat pallet and furnace lining are all poured and formed using refractory material, and internally it is provided with metal anchorage,
The strength and stability of flat pallet is greatly improved, and is not susceptible to collapse, and the life-span of not overhauling of multiple hearth furnace greatly prolongs.
3）Strength and stability due to castable pallet relative to refractory brick pallet is significantly improved, even if needing
Furnace lining, which is changed a social system, or repaired can also courageously carry out partial dismantling replacing, safe and simple easy, and need not be to other
Part is removed, and material cost is substantially reduced, and maintenance time greatly shortens, and idle cost is reduced, and can be substantially reduced enterprise
Burden.
4）The furnace lining of the present invention can be according to actual needs to the shape and charging aperture of furnace lining, discharging opening, cast material torr
Quantity, shape and the position of disk are improved, the need for can meeting different industrial uses, can further expand multiple hearth furnace
Application.
Brief description of the drawings
Fig. 1 multiple hearth furnace furnace lining structures of the prior art；
The multiple hearth furnace castable furnace lining structure of Fig. 2 present invention；
1st, shell, 2, refractory brick furnace lining, 3, bell, 4, clay brick plane pallet, 5, mechanical rotating shaft, 6, castable furnace lining, 7, pour
Material feeding pallet, 8, metal anchorage.
Embodiment
The multiple hearth furnace castable furnace lining structure of the present invention is as shown in Fig. 2 the multiple hearth furnace castable furnace lining structure is including outer
Set in shell 1, bell 3, furnace bottom, castable furnace lining 6, castable plane pallet 7, castable furnace lining 6 and castable plane pallet 7
There is metal anchorage 8.
The shell 1 can be metallic cylinder or the other shapes designed as needed, and the shell 1 should have
Have appropriate thickness and intensity, can bear the pressure of furnace lining, and according to the disposal ability of design, with appropriate height and
Volume.
The bell 3 covers whole furnace roof and closed.
The furnace bottom is located at the multiple hearth furnace bottom, for supporting whole furnace lining structure.
The castable furnace lining 6 by refractory casting material one-piece casting inside shell 1, it is and closely coupled with shell 1, outside
The inner surface setting of shell 1 has metal anchorage 8, and metal anchorage 8 is embedded in inside castable furnace lining 6, for strengthening castable furnace lining 6
With the bond strength of shell 1.
Multiple castable pallets 7 are provided with multiple hearth furnace from top to bottom, so that burner hearth is divided into multiple separations.Pour into a mould material torr
The number of disk 7 is determined according to design treatment ability, for example, can be 2-20.The castable pallet 7 is by refractory casting material
Pour and form, be provided with metal anchorage 8, the intensity for strengthening the castable pallet 7.The refractory casting material
Can be refractory casting material commonly used in the art or the refractory casting material for being needed and being customized according to technique, institute
It can be metal anchorage commonly used in the art or according to furnace lining structure and castable pallet to state metal anchorage
Shape and the metal anchorage designed.
The position of charging aperture, number and shape can be configured according to actual needs.For example, one or more charging apertures
It can be arranged on bell and/or top layer separation, if the dried layer separation below top layer separation and top layer separation can also be arranged on
On, if the dried layer separation that can also be arranged on below bell and/or top layer separation and top layer separation simultaneously on.For example in some feelings
Under condition, charging aperture can be arranged on top layer separation, can also be arranged on secondary top layer below top layer separation and top layer separation every
On cabin, if on the dried layer separation that can also be arranged on below top layer separation and top layer separation.Charging on bell and each layer separation
Mouth can be one or more.The shape of charging aperture can be circle, square, rectangle etc..Treating material via bell and/
Or one or more charging apertures on each layer separation enter multiple hearth furnace.
In actual production process, treating material can have an one or more, and one or more treating materials can be with
Enter multiple hearth furnace from a charging aperture, or enter multiple hearth furnace from different charging apertures.For example in certain situations it is desirable to will be a variety of
Different treating materials adds multiple hearth furnace, this furnace lining knot of the invention from different positions or in different processing stages
Structure is adapted to a variety of needs.
Treating material can typically undergo drying stage, warm-up phase, firing stage, cooling from top to bottom in multiple hearth furnace
Stage etc..In some cases, a part for the treatment of material can enter from the charging aperture of bell or top layer separation, another part
The material that need not be dried can be directly added into the thing that multiple hearth furnace or another part have been warmed up in the charging aperture of warm-up phase
Material can be directly entered multiple hearth furnace in the charging aperture of firing stage.
The position of discharging opening, number and shape can be configured according to actual needs.For example, one or more discharging openings
It can be arranged on furnace bottom and/or bottom separation, if the dried layer separation above bottom separation and bottom separation can also be arranged on
On, if the dried layer separation that can also be arranged on above furnace bottom and/or bottom separation and bottom separation simultaneously on.For example in some feelings
Under condition, one or more discharging openings can be arranged on bottom separation, can also be arranged on above bottom separation and bottom separation
Second bottom separation on, if on the dried layer separation that can also be arranged on above bottom separation and bottom separation.The shape of discharging opening
Can be circle, square, rectangle etc..Material after processing is through one or more discharging openings on furnace bottom and/or each layer separation
Discharge multiple hearth furnace.
In actual production, material can be discharged in different disposal stage or different disposal degree as needed.Example
As can with firing stage later if can with effluent material, can also cooling stage different separations discharge different temperatures thing
Material.
According to technique needs, it can make castable pallet 7 that there is different shape and angle, with the maximum stove that meets
Process requirements.Such as described castable pallet 7 can integrally be inclined upwardly certain angle, can also tilt down certain angle,
Or it is generally horizontal.The angle of inclination of the castable pallet 7 of each layer can be different.Therefore, in multiple hearth furnace of the invention
Castable pallet 7 can have a variety of different combining forms in shape and angle, can meet different process requirements, and pass
In the refractory brick furnace lining structure of system, refractory brick pallet can only integrally be inclined upwardly certain angle can realize self stability and
To the bearing capacity of material.
Before the multiple hearth furnace castable furnace lining structure is poured, the inner surface welding metal anchoring piece 8 first in shell 1,
The position of the metal anchorage 8 is determined by the position of the castable pallet 7.When pouring, according to the castable pallet 7
Position successively independently pour（I.e. every layer is all individually poured）, it is provided with expansion clearance between each layer, and every layer is poured
Material feeding furnace lining 6 and castable pallet 7, which are all divided between some blocks, each block, is also equipped with expansion clearance, for reducing production
During due to expansion produce stress.Linked between each block by metal anchorage.
The castable pallet 7 is provided with feed opening near deep circumference, or in center and machinery
Form feed opening between rotating shaft 5, both castable pallets are arranged alternately, operationally, material in the presence of scrapper conveyor to
Deep circumference movement is moved to center, then next layer of castable pallet is fallen on from feed opening, so that material
From top to bottom in flowing in a zigzag.
The special shaped brick of traditional refractory brick multiple hearth furnace furnace lining structure has tens kinds, and very high construction skill is needed when building by laying bricks or stones
Art, and special shaped brick in sintering procedure due to shrinkage ratio difference has can not between different degrees of deformation, each special shaped brick
Perfection is bonded, therefore the multiple hearth furnace furnace lining structure less stable built by laying bricks or stones, and castable furnace lining of the present invention uses fire resisting
Material one-piece casting is formed, and difficulty of construction is substantially reduced, and can be live according to the height of multiple hearth furnace, diameter and design treatment
The conditions such as ability are customized to furnace lining structure, have broken away from the limitation of special shaped brick.
The multiple hearth furnace castable furnace lining structure of the present invention is that one-piece casting is formed, and is fixed on shell using metal anchorage
On, stability is greatly improved relative to refractory brick furnace lining structure, and castable pallet is the working lining of multiple hearth furnace, with refractory brick pallet
Compare, the stability and intensity of itself all improve a lot, thus material bearing capacity and to the ability to bears of mechanical oscillation all
It is significantly improved.Traditional furnace lining structure is due to being formed with laying fireproof bricks in addition, in order to which holding structure stability can not be set
Expansion clearance is put, under the high temperature conditions, larger thermal expansion stress can be produced, Flow of Goods and Materials impact and mechanical oscillation etc. are added,
The stability of furnace lining structure can be decreased obviously, and therefore the weakest refractory brick pallet easily collapses, and the castable of the present invention
Furnace lining structure, which is divided between some blocks, each block, is reserved with expansion clearance, can offset the expansion produced under the high temperature conditions
Stress, therefore overcome the problem of refractory brick pallet easily collapses.
The life-span of not overhauling of traditional refractory brick furnace lining structure only has some months, and the castable furnace lining structure of the present invention
Long lifespan is not overhauled reaches the several years, and the transformation of the way and repairing of furnace lining are also easy to.Meanwhile, multiple hearth furnace castable furnace lining of the invention
Structure has broken the limitation of existing multiple hearth furnace profile and internal structure design, is conducive to widening and excavates the new use of multiple hearth furnace
On the way.Using several multiple hearth furnaces of the castable furnace lining structure of the present invention, running situation is good, achieve very high economic benefit and
Social benefit.
Claims (10)
1. a kind of multiple hearth furnace castable furnace lining structure, including shell（1）, bell（3）, furnace bottom, castable furnace lining（6）, multiple pour
Material feeding pallet（7）, it is characterised in that：The castable furnace lining（6）With castable pallet（7）Poured by refractory casting material and
Into shell（1）Inner surface be welded with metal anchorage（8）, the metal anchorage（8）It is embedded in castable furnace lining（6）With pour
Material feeding pallet（7）In, the castable furnace lining（6）Pass through metal anchorage（8）With the shell（1）Close connection is combined.
2. a kind of multiple hearth furnace castable furnace lining structure according to claim 1, it is characterised in that：The multiple hearth furnace castable
Furnace lining structure is according to the multiple castable pallet（7）Position independently pour.
3. a kind of multiple hearth furnace castable furnace lining structure according to claim 2, it is characterised in that：Every layer of castable furnace lining
（6）With castable pallet（7）All it is divided between some blocks, each block and is also equipped with expansion clearance.
4. a kind of multiple hearth furnace castable furnace lining structure according to claim 3, it is characterised in that：Pass through between the block
Metal anchorage（8）Connection.
5. a kind of multiple hearth furnace castable furnace lining structure according to claim 1, it is characterised in that：The charging aperture of the multiple hearth furnace
It is arranged on bell（3）And/or on one or more layers separation at the top of multiple hearth furnace, the charging aperture is pending to be one or more
Material enters multiple hearth furnace from one or more charging apertures.
6. a kind of multiple hearth furnace castable furnace lining structure according to claim 1, it is characterised in that：The discharging opening of the multiple hearth furnace
On one or more layers separation for being arranged on furnace bottom and/or multiple hearth furnace bottom, the discharging opening is one or more, the thing after processing
Material discharges multiple hearth furnace from one or more discharging openings.
7. a kind of multiple hearth furnace castable furnace lining structure according to claim 1, it is characterised in that：The shell（1）For gold
Belong to cylinder, or the other shapes designed as needed.
8. a kind of multiple hearth furnace castable furnace lining structure according to claim 1, it is characterised in that：The castable pallet
（7）Entirety is inclined upwardly or entirety is tilted down or is level.
9. a kind of multiple hearth furnace castable furnace lining structure according to claim 8, it is characterised in that：Different castable pallets
（7）Angle of inclination can be with identical or different.
10. a kind of multiple hearth furnace castable furnace lining structure according to claim 1, it is characterised in that：The castable pallet
（7）Shape can be with identical or different.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710593373.8A CN107166965B (en) | 2017-07-20 | 2017-07-20 | Multi-hearth furnace castable furnace lining structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710593373.8A CN107166965B (en) | 2017-07-20 | 2017-07-20 | Multi-hearth furnace castable furnace lining structure |
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| Publication Number | Publication Date |
|---|---|
| CN107166965A true CN107166965A (en) | 2017-09-15 |
| CN107166965B CN107166965B (en) | 2023-08-11 |
Family
ID=59817134
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710593373.8A Active CN107166965B (en) | 2017-07-20 | 2017-07-20 | Multi-hearth furnace castable furnace lining structure |
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| GB118940A (en) * | 1917-11-13 | 1918-09-19 | Henry Charles Bingham | Improvements in Mechanical Furnaces for Roasting Blende, Pyrites or other Minerals. |
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| CN202562271U (en) * | 2012-04-26 | 2012-11-28 | 金堆城钼业股份有限公司 | Hearth for molybdenum baking multi-hearth furnace |
| JP2013019553A (en) * | 2011-07-07 | 2013-01-31 | Chisaki:Kk | Brick support structure for vertical furnace |
| CN202792933U (en) * | 2012-08-24 | 2013-03-13 | 北京首钢国际工程技术有限公司 | Fire resisting structure of walking heating furnace hearth |
| CN104677111A (en) * | 2015-02-27 | 2015-06-03 | 洛阳市洛华粉体工程特种耐火材料有限公司 | High-strength climbing type double-splint thin shell buckle lining structure |
| CN204438139U (en) * | 2014-12-11 | 2015-07-01 | 北京瑞克森地环保技术有限公司 | Multiple hearth furnace sludge incinerator |
| CN205782876U (en) * | 2016-05-27 | 2016-12-07 | 兖州煤业股份有限公司 | A kind of Circulating Fluidized Bed Temperature point for measuring temperature structure |
| CN206944718U (en) * | 2017-07-20 | 2018-01-30 | 洛阳市洛华粉体工程特种耐火材料有限公司 | A kind of multiple hearth furnace castable furnace lining structure |
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2017
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Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB118940A (en) * | 1917-11-13 | 1918-09-19 | Henry Charles Bingham | Improvements in Mechanical Furnaces for Roasting Blende, Pyrites or other Minerals. |
| CN101261079A (en) * | 2007-09-11 | 2008-09-10 | 李朝侠 | Large area air outlet fluidized calcining furnace refractory lining |
| CN101900486A (en) * | 2010-04-02 | 2010-12-01 | 攀钢集团冶金工程技术有限公司 | Multilayer roaster building method and hearth replacing method |
| JP2013019553A (en) * | 2011-07-07 | 2013-01-31 | Chisaki:Kk | Brick support structure for vertical furnace |
| CN202562271U (en) * | 2012-04-26 | 2012-11-28 | 金堆城钼业股份有限公司 | Hearth for molybdenum baking multi-hearth furnace |
| CN202792933U (en) * | 2012-08-24 | 2013-03-13 | 北京首钢国际工程技术有限公司 | Fire resisting structure of walking heating furnace hearth |
| CN204438139U (en) * | 2014-12-11 | 2015-07-01 | 北京瑞克森地环保技术有限公司 | Multiple hearth furnace sludge incinerator |
| CN104677111A (en) * | 2015-02-27 | 2015-06-03 | 洛阳市洛华粉体工程特种耐火材料有限公司 | High-strength climbing type double-splint thin shell buckle lining structure |
| CN205782876U (en) * | 2016-05-27 | 2016-12-07 | 兖州煤业股份有限公司 | A kind of Circulating Fluidized Bed Temperature point for measuring temperature structure |
| CN206944718U (en) * | 2017-07-20 | 2018-01-30 | 洛阳市洛华粉体工程特种耐火材料有限公司 | A kind of multiple hearth furnace castable furnace lining structure |
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| Publication number | Publication date |
|---|---|
| CN107166965B (en) | 2023-08-11 |
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