CN106946478B - A kind of device and method producing fused magnesite in such a way that furnace body moves down - Google Patents
A kind of device and method producing fused magnesite in such a way that furnace body moves down Download PDFInfo
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- CN106946478B CN106946478B CN201710192907.6A CN201710192907A CN106946478B CN 106946478 B CN106946478 B CN 106946478B CN 201710192907 A CN201710192907 A CN 201710192907A CN 106946478 B CN106946478 B CN 106946478B
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2/00—Lime, magnesia or dolomite
- C04B2/10—Preheating, burning calcining or cooling
- C04B2/102—Preheating, burning calcining or cooling of magnesia, e.g. dead burning
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/03—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on magnesium oxide, calcium oxide or oxide mixtures derived from dolomite
- C04B35/04—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on magnesium oxide, calcium oxide or oxide mixtures derived from dolomite based on magnesium oxide
- C04B35/043—Refractories from grain sized mixtures
Abstract
The present invention relates to a kind of device and methods that fused magnesite is produced in such a way that furnace body moves down, including mobile wooden handcart, furnace body and heated by electrodes mechanism, it is characterized by also including hoistable platforms and the furnace body elevating mechanism that hoistable platform lower part is arranged in, the combined type furnace body that the bottomless fire resistant heat preserving furnace body of fission that the furnace body is three groups or more axially assembles, every group of fire resistant heat preserving furnace body is fanned semicircle furnace wall by be radially divided into two two and is docked by locking device, and is longitudinally fixedly connected using pin；Combined type furnace body is placed in mobile wooden handcart and hoistable platform top, and the heated by electrodes mechanism is fixed at the top of combined type furnace body.The invention has the advantages that elevating mechanism control furnace body moves down in fusion process, the problems such as effectively avoiding the long range movement of electrode, shake bring current fluctuation, current interruption, furnace shell is avoided to burn.Furnace lining has heat insulation effect, and thermal loss reduces, facilitates growing up for periclase crystal, and integrated power-saving effect is obvious.
Description
Technical field
The present invention relates to raw material for refractory production technical fields, more particularly to one kind to produce electric smelting in such a way that furnace body moves down
The device and method of magnesia.
Technical background
Fused magnesite be with the natural magnesite of level-one or high-purity light calcined magnesia particle, be higher than in electric arc furnaces 2750 DEG C it is molten
Melt.The product has the characteristics that content of magnesia is high, periclase crystal size is big, compact structure, anti-scour property are good,
It is the important source material for preparing high-grade burned-magnesia brick, magnesia carbon brick and unshape refractory.Liaoning Province is the main production of fused magnesite
Ground has different more than 800 platforms of capacitance electric magnesite-smelting furnace at present, produces within 2015 1470000 tons of high-quality fused magnesite.Wherein, it produces
Big crystallization fused magnesite ton power consumption 2600KWH or so, common electric melting magnesia ton power consumption 3000KWH or so.
Currently, fused magnesite is using furnace body is fixed, the electrode mode of moving up produces.That is: 3~5 meters of high furnace shells are upright
It is fixed on flat car, each of three electrodes wire rope hanging, furnace body is fixed when production, and electrode utilizes magnesite in the furnace bottom starting the arc
(or light calcined magnesia) constantly covers electric arc, and magnesite constantly melts.With electrode constantly move up, magnesite is in electric arc
Natural cooling after melting in furnace, stock column rises steadily, and periclase crystal is crystallized from melt, the slow side's of the being conducive to magnesium of cooling velocity
Stone crystal grows.One furnace melting time in 7~10 hours, after placing a period of time naturally, sloughed furnace shell, and removed table
Melt is owed in face, is thoroughly crushed classification after cooling.
This furnace body is fixed, electrode move up the method for mode melting fused magnesite there are the problem of mainly have: first is that using
The electrode movement distance of wire rope hanging is big, electrode waves, and causes unstable electric current, current interruption, in-furnace temperature variation greatly, often goes out
Existing furnace shell locally burns furnace shell phenomenon；Second is that stock column caused by as electrode waves, electric current is unstable is axial, transverse temperature is distributed
Unevenness causes different parts periclase structure, crystal size etc. in same stock column all to there is deviation, influences its quality；Third is that by
In using top hulling method, furnace shell can not use heat preservation technology, cause energy waste, and be unfavorable for the complete of periclase crystal
It is kind.
Summary of the invention
The object of the present invention is to provide a kind of device and methods that fused magnesite is produced in such a way that furnace body moves down, can be significant
Fused magnesite high-quality product yield is improved, saves 20% or more electric energy, while can be to avoid production accidents such as furnace body burn-through, broken Electrodes.
The purpose of the present invention is what is be achieved through the following technical solutions.
A kind of device producing fused magnesite in such a way that furnace body moves down according to the invention, including mobile wooden handcart, furnace body and
Heated by electrodes mechanism, it is characterised in that: it further include hoistable platform and the furnace body elevating mechanism that hoistable platform lower part is set, it is described
Furnace body be three groups or more the combined type furnace body that axially assembles of the bottomless fire resistant heat preserving furnace body of fission, every group of fire resistant heat preserving furnace
Body is fanned semicircle furnace wall by be radially divided into two two and is docked by locking device, and it is symmetrical to fan semicircle furnace wall side two
Equipped with lifting lug, the longitudinal direction of every group of fire resistant heat preserving furnace body is fixedly connected using pin；The combined type furnace body is placed in mobile wooden handcart
On, the mobile wooden handcart is set to hoistable platform top, and the heated by electrodes mechanism is fixed at the upper of combined type furnace body
Portion.
Preferably, described two semicircle furnace walls are fanned respectively by steel shell, is successively set on insulating layer on the inside of steel shell, fire resisting
Layer and magnesia adherent layer are formed.
Preferably, the locking device by be symmetrically arranged at two fan semicircle furnace wall junctions with docking groove
Lock tube and with spring pin and limit bloom lock formed, be additionally provided with spring pin button, institute in the lock
The lock tube with docking groove and the lock snapping with spring pin and limit bloom stated, the semicircle furnace walls of two fans are fixed and are connected
It connects.
Preferably, the furnace body elevating mechanism includes motor, reduction gearbox and hydraulic system, and the hydraulic system includes
The telescopic rod outer end of oil pump, motor and hydraulic cylinder, hydraulic cylinder is fixedly connected with orbital platform.
Preferably, the mobile wooden handcart includes pedestal, and the idler wheel of pedestal lower part is arranged in, and is successively set on pedestal top
Insulating layer, flame retardant coating and magnesia adherent layer.
Preferably, the combined type furnace body total height is 4500mm~6000mm, and combined type furnace body operating inner diameter is
1800mm~2200mm.
Preferably, the height of every group of fire resistant heat preserving furnace body is 1500mm.
Preferably, the heated by electrodes mechanism is chute type heated by electrodes mechanism, the chute type heated by electrodes machine
Structure includes power supply and control system, graphite electrode and electrode lifting device.
A kind of method producing fused magnesite in such a way that furnace body moves down of the invention, it is characterised in that include the following steps:
(1) first group of fire resistant heat preserving furnace body is installed and fixed in mobile wooden handcart central upper portion position, mobile wooden handcart is pushed into
It is simultaneously fixed among hoistable platform, by furnace body elevating mechanism by first group of bottom fire resistant heat preserving furnace body A above mobile wooden handcart
Portion is promoted at the 100mm~150mm of graphite electrode bottom；
(2) melting operation is carried out according to fused magnesite production technology, in operation process, raw material is used, content of magnesia 47%
More than, lumpiness is the light calcined magnesia of 10 mm~50mm magnesite or 90% or more content of magnesia, is charged on one side, on one side
Stablize, average rate downwards fire resistant heat preserving furnace body A it is mobile, movement speed is 0.8~0.9cm/min,
(3) when graphite electrode bottom moves on first group of fire resistant heat preserving furnace body A of distance along 250mm, melting is not being interrupted
In the case where, using manipulator by the two fan furnace walls of second group of fire resistant heat preserving furnace body B respectively from electrode two sides simultaneously with first group
Docking at the top of fire resistant heat preserving furnace body A, and the two fan furnace wall locked and fixeds of second group of fire resistant heat preserving furnace body B are existed using locking device
Together, second group of fire resistant heat preserving furnace body B is fixedly connected with first group of longitudinal direction fire resistant heat preserving furnace body A with pin；
(4) with the progress of melting, according to the method for step 3), continue to dock third group fire resistant heat preserving furnace body C and the 4th
Group fire resistant heat preserving furnace body D, forms the combined type furnace body of a stock column full of fused magnesite, every furnace smelting time 8~12 hours；
(5) after wooden handcart to be moved is down to initial position, graphite electrode moves up 300 mm~500mm, at this point, mobile
Combined type furnace body of the wooden handcart carrying full of fused magnesite stock column is cooling to cooling place；
(6) after fused magnesite stock column is completely cooling, furnace wall locking device is released, extracts pin, using manipulator from upper
Downwards, successively furnace wall is removed from both sides horizontal direction respectively, broken classification is carried out to fused magnesite stock column according to standard.
The working principle of the invention is: in fusion process, controlling the addition rate of raw material, furnace body from upper by computer
The position of speed and graphite electrode is moved down, graphite electrode has small distance mobile up and down in fusion process.Due to magnesia
The distance between melting zone and graphite electrode fever end substantially constant, reach electric current stabilization, the uniform effect of fever；Furnace insulation
Layer prevents heat is too fast from scattering and disappearing, and flame retardant coating further prevents high-temperature fusant to burn furnace shell, magnesia adherent layer can make stock column easily shell,
Long service life and not polluted product.
Beneficial benefit of the invention is: keeping the relatively fixed of electrode position by moving down for control furnace body, avoids
Electrode movement distance is big, waves unstable caused arc position, temperature fluctuation, current interruption, furnace shell burn-through, broken Electrode etc.
Problem ensure that continuous production and production safety；Since electrode is without movement, so that electrode length and power supply line shorten, electricity
The effective rate of utilization of energy increases substantially；Furnace body is provided with insulating layer, flame retardant coating, slows down heat loss, heat loss is slow
Periclase grain development is more perfect in certifiable stock column, to improve product quality；The factory building height newly built can reduce by 2
~3m, the present invention, which also helps, realizes production process automatic control and clean manufacturing.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for the device that the present invention produces fused magnesite in such a way that furnace body moves down.
Fig. 2 is that first group of fire resistant heat preserving furnace body A of the present invention is placed in the structural schematic diagram in mobile wooden handcart.
Fig. 3 is the A-A cross-sectional view of Fig. 2.
Fig. 4 is the schematic enlarged-scale view that the present invention two fans furnace wall locking device.
Workflow schematic diagram Fig. 5 of the invention.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples.
As Figure 1-Figure 5, a kind of device producing fused magnesite in such a way that furnace body moves down of the invention, including movable plate
Vehicle 3, furnace body and heated by electrodes mechanism, it is characterised in that: further include hoistable platform 2 and the furnace body that 2 lower part of hoistable platform is set
Elevating mechanism 1, the combined type furnace that the bottomless fire resistant heat preserving furnace body 4 of fission that the furnace body is three groups or more axially assembles
Body, the combined type furnace body total height be 4500mm~6000mm, combined type furnace body operating inner diameter be 1800mm~
2200mm；Every group of fire resistant heat preserving furnace body 4 passes through locking device 9 by two fan semicircle furnace wall 4- I and 4- II being radially divided into two
It docks, the height of every group of fire resistant heat preserving furnace body 4 is 1500mm；II side semicircle furnace wall 4- I and 4- is fanned two
It is symmetrically arranged with lifting lug 6, the longitudinal direction of every group of fire resistant heat preserving furnace body 4 is fixedly connected using pin 5；The combined type furnace body 4 is arranged
In mobile wooden handcart 3, the mobile wooden handcart 3 is set to 2 top of hoistable platform, and the heated by electrodes mechanism is fixed at group
The top of box-like furnace body.
Preferably, the two fan semicircle furnace wall furnace 4- I and 4- II are successively set on the present invention respectively by steel shell 4-1
Insulating layer 4-2, flame retardant coating 4-3 and magnesia adherent layer 4-4 on the inside of steel shell 4-1 are formed.
The mobile wooden handcart 3 includes pedestal 3-2, and the idler wheel 3-1 of the lower part pedestal 3-2 is arranged in, is successively set on pedestal
Insulating layer 3-3, the flame retardant coating 3-4 and magnesia adherent layer 3-5 on the top 3-2.
Its insulating layer of furnace body prevents heat is too fast to scatter and disappear, and flame retardant coating further prevents high-temperature fusant to burn furnace shell, magnesia
Adherent layer can make stock column easily shell, long service life and not polluted product.
As shown in figure 4, the present invention is preferably, the locking device 9 is by being symmetrically arranged at two fan semicircle furnace walls
The lock tube 9-1 with docking groove 9-2 and the lock 9-6 with spring pin 9-3 and limit bloom 9-4 of junction are formed,
Be additionally provided with spring pin button 9-5 in the lock 9-6, the described lock tube 9-1 with docking groove 9-2 with have spring catch
It follows closely 9-3 and limits the lock 9-6 snapping of bloom 9-4, fan semicircle furnace wall 4 for two and be fixedly connected.
Preferably, the furnace body elevating mechanism 1 includes motor, reduction gearbox and hydraulic system, the hydraulic system packet
Oil pump, motor and hydraulic cylinder are included, the telescopic rod outer end of hydraulic cylinder is fixedly connected with orbital platform.It is not shown in the figure.
The present invention preferably, be chute type heated by electrodes mechanism described in chute type heated by electrodes mechanism, including power supply and
Control system 8, graphite electrode 7 and electrode lifting device.It is powered and control system 8 is using existing control system, therefore
This is not repeated them here.
Embodiment 1
This example people output power 3000KVA, combined type furnace body operating inner diameter 2200mm, 35 tons~40 tons of every furnace output,
As shown in Figure 5.
Concrete operations portion is suddenly as follows
(1) first group of fire resistant heat preserving furnace body A is installed and fixed in 2 central upper portion position of mobile wooden handcart, mobile wooden handcart 3 is pushed away
It among to hoistable platform 2 and is fixed, by furnace body elevating mechanism 1 by first group of fire resistant heat preserving furnace above mobile wooden handcart 2
The bottom body A is promoted at 7 bottom 100mm~150mm of graphite electrode；
(2) melting operation is carried out according to fused magnesite production technology, in operation process, raw material uses content of magnesia 47%
More than, lumpiness is 10 mm~50mm magnesite, charge on one side, stable on one side, average rate downwards fire resistant heat preserving furnace body A it is mobile,
Its movement speed is 0.8 cm~0.9cm/min,
(3) when graphite electrode bottom moves on first group of fire resistant heat preserving furnace body A of distance along 250mm, melting is not being interrupted
In the case where, using manipulator by the two fan furnace walls of second group of fire resistant heat preserving furnace body B respectively from electrode two sides simultaneously with first group
Docking at the top of fire resistant heat preserving furnace body A, and the two fan furnace wall locked and fixeds of second group of fire resistant heat preserving furnace body B are existed using locking device
Together, second group of fire resistant heat preserving furnace body B is fixedly connected with first group of longitudinal direction fire resistant heat preserving furnace body A with pin；
(4) with the progress of melting, according to the method for step 3), continue to dock third group fire resistant heat preserving furnace body C and the 4th
Group fire resistant heat preserving furnace body D, forms the combined type furnace body of a stock column full of fused magnesite, every furnace smelting time 12 hours；
(5) after wooden handcart to be moved is down to initial position, graphite electrode moves up 300 mm~500mm, at this point, mobile
Combined type furnace body of the wooden handcart carrying full of fused magnesite stock column is cooling to cooling place；
(6) after fused magnesite stock column is completely cooling, furnace wall locking device is released, extracts pin, using manipulator from upper
Downwards, successively furnace wall is removed from both sides horizontal direction respectively, broken classification is carried out to fused magnesite stock column according to standard.
Embodiment 2
This example output power 2500KVA, combined type furnace body operating inner diameter 1800mm, 25~30 tons of every furnace output,
Present embodiment specific steps are as follows:
(1) first group of fire resistant heat preserving furnace body A is installed and fixed in 2 central upper portion position of mobile wooden handcart, mobile wooden handcart 3 is pushed away
It among to hoistable platform 2 and is fixed, by furnace body elevating mechanism 1 by first group of fire resistant heat preserving furnace above mobile wooden handcart 2
The bottom body A is promoted at 7 bottom 100mm~150mm of graphite electrode；
(2) melting operation is carried out according to fused magnesite production technology, in operation process, raw material uses content of magnesia 90%
Above light calcined magnesia, charges on one side, stable on one side, average rate downwards fire resistant heat preserving furnace body A it is mobile, movement speed is
0.8 cm~0.9cm/min,
(3) when graphite electrode bottom moves on first group of fire resistant heat preserving furnace body A of distance along 250mm, melting is not being interrupted
In the case where, using manipulator by the two fan furnace walls of second group of fire resistant heat preserving furnace body B respectively from electrode two sides simultaneously with first group
Docking at the top of fire resistant heat preserving furnace body A, and the two fan furnace wall locked and fixeds of second group of fire resistant heat preserving furnace body B are existed using locking device
Together, second group of fire resistant heat preserving furnace body B is fixedly connected with first group of longitudinal direction fire resistant heat preserving furnace body A with pin；
(4) with the progress of melting, according to the method for step 3), continue to dock third group fire resistant heat preserving furnace body C and the 4th
Group fire resistant heat preserving furnace body D, forms the combined type furnace body of a stock column full of fused magnesite, every furnace smelting time 8 hours；
(5) after wooden handcart 3 to be moved is down to initial position, graphite electrode 7 moves up 300 mm~500mm, at this point, moving
Combined type furnace body of the movable plate vehicle carrying full of fused magnesite stock column is cooling to cooling place；
(6) after fused magnesite stock column is completely cooling, the locking device of three groups of combined type furnace bodies is released respectively from the top down,
Extract pin, using manipulator, successively by furnace wall respectively from both sides horizontal direction remove, according to standard to fused magnesite stock column into
The broken classification of row.
Elevating mechanism control furnace body moves down in fusion process of the present invention, and electrode keeps relatively fixed, effectively avoids electrode
The problems such as long range is mobile, shakes bring current fluctuation, avoids current interruption, furnace shell burn-through.Furnace lining has heat insulation effect, heat
Amount loss reduces, facilitates growing up for periclase crystal, to improve product quality, integrated power-saving effect is obvious.
Claims (9)
1. a kind of device that fused magnesite is produced in such a way that furnace body moves down, including mobile wooden handcart, furnace body and heated by electrodes mechanism,
Be characterized in that: further including hoistable platform and the furnace body elevating mechanism that hoistable platform lower part is set, the furnace body be three groups with
On the combined type furnace body that axially assembles of the bottomless fire resistant heat preserving furnace body of fission, every group of fire resistant heat preserving furnace body be by radial one point
The two of two fan semicircle furnace walls docks by locking device, is symmetrically arranged with lifting lug in two fan semicircle furnace wall sides, and every group
The longitudinal direction of fire resistant heat preserving furnace body is fixedly connected using pin；The combined type furnace body is placed in mobile wooden handcart, the movement
Wooden handcart is set to hoistable platform top, and the heated by electrodes mechanism is fixed at the top of combined type furnace body.
2. the device according to claim 1 for producing fused magnesite in such a way that furnace body moves down, it is characterised in that described two
Semicircle furnace wall is fanned to be made of steel shell, the insulating layer being successively set on the inside of steel shell, flame retardant coating and magnesia adherent layer respectively.
3. the device according to claim 1 for producing fused magnesite in such a way that furnace body moves down, it is characterised in that the lock
Tight device by be symmetrically arranged at two fan semicircle furnace wall junctions lock tube with docking groove and with spring pin with
The lock of limit bloom is formed, and is additionally provided with spring pin button in the lock, the described lock tube with docking groove and
Lock snapping with spring pin and limit bloom is fanned semicircle furnace wall for two and is fixedly connected.
4. the device according to claim 1 for producing fused magnesite in such a way that furnace body moves down, it is characterised in that the furnace
Body elevating mechanism includes motor, reduction gearbox and hydraulic system, and the hydraulic system includes oil pump, motor and hydraulic cylinder, liquid
The telescopic rod outer end of compressing cylinder is fixedly connected with orbital platform.
5. the device according to claim 1 for producing fused magnesite in such a way that furnace body moves down, it is characterised in that the shifting
Movable plate vehicle includes pedestal, and the idler wheel of pedestal lower part is arranged in, and is successively set on the insulating layer on pedestal top, flame retardant coating and magnesia anti-
Adhesion coating.
6. the device according to claim 1 for producing fused magnesite in such a way that furnace body moves down, it is characterised in that the group
Box-like furnace body total height is 4500mm ~ 6000mm, and combined type furnace body operating inner diameter is 1800mm ~ 2200mm.
7. the device according to claim 1 for producing fused magnesite in such a way that furnace body moves down, it is characterised in that described is every
The height of group fire resistant heat preserving furnace body is 1500mm.
8. the device according to claim 1 for producing fused magnesite in such a way that furnace body moves down, it is characterised in that the electricity
Pole heating mechanism is chute type heated by electrodes mechanism, and the chute type heated by electrodes mechanism includes power supply and control system, stone
Electrode ink and electrode lifting device.
9. a kind of method for producing fused magnesite in such a way that furnace body moves down, it is characterised in that include the following steps:
(1) first group of fire resistant heat preserving furnace body A is installed and fixed in mobile wooden handcart central upper portion position, mobile wooden handcart is pushed into go up and down
It among platform and is fixed, is mentioned first group of bottom fire resistant heat preserving furnace body A above mobile wooden handcart by furnace body elevating mechanism
It is raised at the 100mm ~ 150mm of graphite electrode bottom；
(2) carry out melting operation according to fused magnesite production technology, in operation process, raw material is used, content of magnesia 47% with
On, lumpiness is the light calcined magnesia of 10 mm ~ 50mm magnesite or 90% or more content of magnesia, is charged on one side, steady on one side
To determine, moves down to average rate first group of fire resistant heat preserving furnace body A, movement speed is 0.8 ~ 0.9cm/min,
(3) when graphite electrode bottom moves on first group of fire resistant heat preserving furnace body A of distance along 250mm, in the feelings for not interrupting melting
Under condition, using manipulator by the two fan furnace walls of second group of fire resistant heat preserving furnace body B respectively from electrode two sides simultaneously with first group of fire resisting
Docking at the top of thermal insulation furnace body A, and furnace wall locked and fixeds are fanned one for the two of second group of fire resistant heat preserving furnace body B using locking device
It rises, second group of fire resistant heat preserving furnace body B is fixedly connected with first group of longitudinal direction fire resistant heat preserving furnace body A with pin；
(4) with the progress of melting, according to the method for step (3), continue to dock third group fire resistant heat preserving furnace body C and the 4th group resistance to
Fiery thermal insulation furnace body D forms the combined type furnace body of a stock column full of fused magnesite, every furnace smelting time 8 ~ 12 hours；
(5) after wooden handcart to be moved is down to initial position, graphite electrode moves up 300 mm ~ 500mm, at this point, mobile wooden handcart is held
It is cooling to cooling place to carry the combined type furnace body full of fused magnesite stock column；
(6) after fused magnesite stock column is completely cooling, furnace wall locking device is released, extracts pin, from the top down using manipulator,
Furnace wall is removed from both sides horizontal direction respectively successively, broken classification is carried out to fused magnesite stock column according to standard.
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| CN109141020A (en) * | 2018-09-04 | 2019-01-04 | 湖南金马冶金技术开发有限公司 | A kind of resistance furnace |
| CN111484045B (en) * | 2020-04-23 | 2022-09-13 | 海城三岩矿业有限公司 | Multistage remelting purification method for fused magnesia |
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| CN105910451A (en) * | 2016-06-13 | 2016-08-31 | 北京神雾环境能源科技集团股份有限公司 | Dry distillation device with lower furnace body capable of moving up and down and dry distillation method of dry distillation device |
| CN205980828U (en) * | 2016-06-13 | 2017-02-22 | 北京神雾环境能源科技集团股份有限公司 | Dry distillation device that lower furnace body can reciprocate |
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Effective date of registration: 20190920 Address after: 114000 Xiaonanshan, Fuan Village, Tengao Town, Haicheng City, Anshan City, Liaoning Province Patentee after: Anshan Yingfeng New Material Technology Co., Ltd. Address before: 114051, No. 185, Qianshan Road, hi tech Zone, Liaoning, Anshan Patentee before: Liaoning Science and Technology Univ. |