CN105865207A - Top thermal insulation device suitable for anode baking furnace - Google Patents
Top thermal insulation device suitable for anode baking furnace Download PDFInfo
- Publication number
- CN105865207A CN105865207A CN201610250560.1A CN201610250560A CN105865207A CN 105865207 A CN105865207 A CN 105865207A CN 201610250560 A CN201610250560 A CN 201610250560A CN 105865207 A CN105865207 A CN 105865207A
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- China
- Prior art keywords
- anode
- baking furnace
- attemperator
- protective casing
- type radiation
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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
- F27D1/02—Crowns; Roofs
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C3/00—Electrolytic production, recovery or refining of metals by electrolysis of melts
- C25C3/06—Electrolytic production, recovery or refining of metals by electrolysis of melts of aluminium
- C25C3/08—Cell construction, e.g. bottoms, walls, cathodes
- C25C3/12—Anodes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Abstract
The invention discloses a top thermal insulation device suitable for an anode baking furnace. An inner filling thermal insulation material (2) is arranged in a semi-open type cavity of a half-surrounded type radiation protection housing; in addition, a semi-open thermal insulation cavity (4) is formed in the opening surface end of the inner filling thermal insulation material (2); a thermocouple is arranged on the half-surrounded type radiation protection housing; in addition, a measuring head of the thermocouple is arranged in the semi-open thermal insulation cavity (4); and landing legs are installed on the inner surface of the half-surrounded type radiation protection housing. When normally running, the top thermal insulation device is fixed to the outer surface of the top part of a high-temperature region of the anode baking furnace, the thermocouple can continuously collect temperature data of the top part of the baking furnace, a worker can detect the running condition of the furnace body through the collected data and a top part observation hole, the thermal insulation device can also be simply and rapidly disassembled from the top part, and a maintainer is convenient to carry out overhauling and maintenance. The top thermal insulation device also has the advantages of long service life, small running and maintenance workload and low running cost and is suitable for being used as an external thermal insulation device for the high-temperature region of the anode baking furnace.
Description
Technical field
The present invention relates to a kind of attemperator, particularly to a kind of roaster (containing ring-form calcining furnace,
Fired tank-type roaster, one-way fired furnace) top (containing roast area, preheating zone, other district) external thermal insulation
Device.
Background technology
Metallic aluminium has excellent physical and chemical performance, plays more and more important in society
Role.The use of aluminum and aluminium alloy has penetrated into each key areas of the development of the national economy, according to
Statistics, current China has more than 100 family's electrolysis aluminum production enterprises, and production capacity occupies No. 1 in the world,
Being Aluminium Industry big producing country of the world, Aluminium Industry is that the fast development of Chinese national economy is done
Go out tremendous contribution.The quality of anode (also known as carbon anode, anode carbon block is called for short anode) is direct
Affect functioning condition and the technical-economic index thereof of aluminium cell, rise emphatically in aluminium electrolysis process
Act on.It is one of important procedure obtaining anode that prebaked anode produces, and is the normal work of aluminium cell
The basis made, is also the core of aluminum electrolysis process conditional stability.Roaster is the charcoal element system to molding
Product carry out the Thermal Equipment of roasting heat process, and roasting is most important work in prebaked anode production
Sequence, accounts for about the 60% of anode production total energy consumption；This process is the bar at roaster isolation air
Under part, by certain programming rate, carry out in the way of heating indirectly；Carbon product is at roaster
In by the roasting of 900～1100 DEG C, through the physicochemical change of series of complex, formation
All various sizes of coke granules are securely attached together by coke grid, so that after roasting
Goods there is certain mechanical strength, heat-resisting, corrosion-resistant and good heat conduction, electric conductivity,
With satisfied use and the needs of hot-working (graphitization) further, the temperature control of roaster during this
Make and anode product quality, roaster service life, product energy consumption and environment are all had a significant impact.
Therefore, the control to anode-baking furnace temperature seems most important.
Owing in anode-baking furnace, the physical and chemical process of roasting process is sufficiently complex, existing gas stream
Dynamic, fuel combustion, also has the processes such as heat transmission and material movement.So, at anode-baking furnace
The construction of equipment all suffers from many with actual production problem in running.At present, be primarily present following
Problem: 1. anode-baking furnace floor space is big, typically needs the independent Factory Building of band ceiling；2. roaster
After 4 years operate above, furnace chamber seals bad, and air leakage coefficient is high, causes fuel availability to drop
Low by more than 15%, and affect product quality；3. part coal tar pitch cigarette can not get fully firing in quirk
Burn, discharge with baking flue gas, thus cause energy consumption to raise and pollute increasing the weight of；4. roaster internal junction
The not reasonable energy consumption of unit product caused of structure compared with high, resource cost amount is big；5. anode-baking furnace roof
Portion's temperature is too high, produce, repair and maintaining arduous, radiation loss is big, and energy consumption is high.
2.～4. can be by right in the problems referred to above, 1. the be fixed assets one-time investment problems, and the
The structure of roaster is optimized improvement and solves, if by optimize hopper, burner hearth internal structure,
Flame path structure size, increases flue gas flow area in quirk, reduces the methods such as quirk internal resistance and realizes,
5. be belonging to the long-standing problem of running, is the most potential, and the most urgently to be resolved hurrily is primary
Problem.
Big for the radiation loss of roaster top, energy consumption is high.The most conventional heat preserving method has 5 kinds:
The first is the ring type roasting furnace cover before 2005, is substantially employing fire-resistant light clay
Brick masonry forms, and most domestic Tan Su enterprise is the most still using, and its advantage is that cost is low, executes
Work is easy, but shortcoming is that refractory brick heat conductivity is higher, and increases with the rising of furnace chamber temperature,
During long term high temperature uses, refractory brick contraction distortion, gap occurs each other, causes stove
Room negative pressure loss is relatively big, and thermal losses is more, causes energy excess waste.The second is 2005
After, along with new material, the exploitation of new technique and application, the ring-form calcining furnace of newly-built Tan Su enterprise
Bell, most employing ceramic fiber module anchoring installations are made, and have heat conductivity little,
The advantages such as unit weight is low, and heat energy loss is little, but disposable cost is high.The third is to exist with diatomite brick
Covering on the light-weight brick of bell surface, advantage is lighter in weight, and density is only 0.5g/cm3,
But globality is poor, poor sealing, now eliminate already.4th kind exists for employing lightening casting material
Uniform application on refractory brick surface, advantage is that globality is preferable, uses initial stage bell thermal-insulating sealing
Also preferable, but along with producing the change repeatedly of temperature height, castable thermal shock resistance is poor, occurs
The phenomenon such as ftracture, come off, and does not reaches sealing, heat insulation effect.5th kind is present ring-form calcining furnace
Bell heat preserving mode more typically, i.e. uses quality silicate composite thermo-insulating coating to carry out on refractory brick surface
Smearing covering, it is made up of refractory fibre powder, additive, adhesive etc., and heat insulation effect is relatively
Good, but shortcoming to be intensity relatively low, charcoal element production industry dust is relatively big, needs often to clean, silicic acid
Salt compound thermal-insulation material successively comes off during cleaning, using, and needs to carry out regular repairing, makes
Shorter with the life-span.
For these reasons, these the five kinds methods strengthening insulation are respectively arranged with obvious deficiency, in actual production
In be all difficult to be used widely.
Summary of the invention
The technical problem to be solved be to provide a kind of simple in construction, easy for operation,
Insulation surface temperature fluctuation, high insulating effect can be detected in real time, do not affect normal operating, service life
The top attemperator being suitable to anode-baking furnace long, operation maintenance workload is little, operating cost is low.
In order to solve above-mentioned technical problem, what the present invention provided is suitable to the top insulation dress of anode-baking furnace
Putting, the semi open model cavity of Semi surrounding type radiation protective casing is uniformly and consolidation is filled with internal filling and protects
Adiabator, and the open surface end filling insulation material in described inside construct one semi-open
Heat insulation cavity, described Semi surrounding type radiation protective casing is provided with thermocouple and described thermocouple
Measure head to be in described heat insulation cavity, at the inner surface of described Semi surrounding type radiation protective casing
The many legs playing fixation are installed.
Described Semi surrounding type radiation protective casing is square Semi surrounding type radiation protective casing.
Described thermocouple is K-type thermocouple.
Described cylinder leg is cylinder leg.
The center of described Semi surrounding type radiation protective casing has the circular hole more bigger than observation port aperture also
Filled insulation construction by described inside and go out observation port detection mouth.
Inner surface symmetric position in described Semi surrounding type radiation protective casing both sides is provided with described in 4
Leg, the mount point of described leg is 1/5L inside limit, place1With 4/5L1Position, L1For institute
The length of side of the Semi surrounding type radiation protective casing stated.
Described Semi surrounding type radiation protective casing is made up of the high temperature resistant steel plate of 2～5mm.
Insulation material is filled by the expanded vermiculite that degree is 62%, the silicon of 22% in described inside
Hydrochlorate insulation material, the high temperature resistant cement of 7.2%, the glass mat of 7.8% and rock wool pressurization mixing
Making, the insulation material heat transfer system when normal pressure, thermodynamic temperature 473K is filled in described inside
Number is less than 0.012W/m K, and thickness is 15～50mm.
A length of 9/10L of described heat insulation cavity1, a width of 9/10L2, cavity height h is 10～20mm
Be suitable to the top attemperator of anode-baking furnace, L1Limit for described Semi surrounding type radiation protective casing
Long, L2Hem width for described Semi surrounding type radiation protective casing.
The temperature-measuring range of described thermocouple is between 0 DEG C～1200 DEG C, and thermal response time is 0.2S.
Use the top attemperator being suitable to anode-baking furnace of technique scheme, anode-baking furnace
Containing ring-form calcining furnace, fired tank-type roaster, one-way fired furnace, top containing roast area, preheating zone, other
District, square Semi surrounding type radiation protective casing, the overall square container structure in semi open model, it is used for
Housing center at observation port has the circular hole more bigger than observation port external diameter, by the resistance to height of 2～5mm
Temperature steel plate is made, and is resistant to roaster high temperature of outer surface of high, owing to the emissivity ratio of metal is nonmetallic
Much smaller, and the temperature of shell is more much lower than furnace roof so that this shell can reduce in a large number furnace roof to
The energy of ambient radiation.Observation port detection mouth is filled insulation material at observation port opening by inside
Place constructs, and its external diameter is more bigger than observation port aperture, observation port of well fitting after installation, energy
Staff is facilitated to observe situation in stove at any time while high-efficiency insulated.Internal filling insulation material
By the expanded vermiculite that degree is 62%, the silicate heat-protective coatings of 22%, 7.2% high temperature resistant
The pressurization of the material such as cement, the glass mat of 7.8% and rock wool is mixed, uniformly and the filling out of consolidation
Fill the semi open model cavity of square Semi surrounding type radiation protective casing, and construct one at open surface end
Semi-open air cavity i.e. heat insulation cavity.This internal insulation material of filling is in normal pressure, thermodynamics temperature
Heat transfer coefficient during degree 473K, less than 0.012W/m K, thickness about 15～50mm, can completely cut off the biggest
The conduction of heat of portion of energy, and its specific heat ratio routine insulation material is little, the heat therefore itself absorbed
Amount is little, and only the 1/8 of common material effectively reduces the thermal capacity of attemperator itself.Logical
Cross and use the internal inner surface filling filled thermal insulation materials square Semi surrounding type radiation protective casing, structure
Go out heat insulation cavity (detecting mouth for observation port in the middle of the heat insulation cavity of attemperator at observation port), its
A length of 9/10L1, a width of 9/10L2, cavity height h is 10～20mm；Because the heat conduction system of metal
Number is typically between tens to hundreds of W/m K, so the present invention will be anti-with internal insulation material of filling
The metallic interior surface part (including the edge contacted with boiler face) of radiation shell all wraps, thus
Reduce the heat outwardly conducted from radiation protective casing；Heat insulation cavity can not only avoid insulation material straight
Connecing and contact with furnace roof high temperature surface, the cavity space center of formation is also K-type thermocouple measurement head peace
(the installation of TC at observation port is in 7/10L in the position of dress1、1/2L2Place), single thermocouple can be made to examine
Surveying one piece of bigger boiler face region, when there is crack such as roasting boiler face, red-hot flue gas will be filled with
Chamber, thus detected that high temperature fluctuates by K-type thermocouple.Described K-type thermocouple temperature measurement model
Being trapped among between 0 DEG C～1200 DEG C, thermal response time is 0.2S, and the measurement head of thermocouple is arranged on guarantor
(the installation of TC at observation port is in 7/10L in the center of temperature void space1、1/2L2Place)；K-type
Thermocouple measures the temperature of cavity center point continuously, at PC end, the data recorded is depicted as time t
Temperature DEG C curve, facilitates the ruuning situation that staff observes and judges roaster；As due to height
Temperature flue gas direct long term contact furnace roof, can cause furnace roof deformation and cracking, and insulation material is filled in inside
And internal for the roaster caused due to cracking hot flue gas can be limited in guarantor by the existence of heat insulation cavity
In temperature cavity, greatly reduce thermal loss, and the temperature fluctuation that K-type thermocouple is monitored in real time is by standard
Really and react the abnormal conditions of roaster rapidly to staff, help staff quickly to get rid of
Problem.Described cylinder leg is made up of the round steel post of diameter 6～8mm, is resistant to roaster outer surface
High temperature, 4 round steel posts are separately mounted to 1/5L symmetrical inside square Semi surrounding type radiation protective casing1
With 4/5L1Position；It is inserted in during installation in the brickwork joint between roasting boiler face combustor and hopper, side
Just staff opens attemperator and overhauls roaster and regular maintenance.At roaster top
This insulation dress is installed at high temperature of outer surface of high district (containing roast area, preheating zone, other district) and observation port
Put, the temperature in roaster hearth can be effectively improved, typically can improve 5～65 DEG C；And compared to top
Portion opens wide when aerial, through roaster top external environment loss heat can reduce 68% with
On.
The present invention is to install one layer 3～8mm thick inside additional in square Semi surrounding type radiation protective casing side
Fill insulation material, apply this method can save the low creep of filling during top heat-insulation layer is installed
The step of lightweight clay, increases portability further, maintenance can be made convenient, and sealing is complete
Entirely meet production requirement.This improves the sealing thermal insulation performance being mainly in view of top heat-insulation layer, can enter
One step strengthens the convenience installed, safeguard and construct.
The operation principle of the present invention is briefly described as below:
As a example by certain charcoal ink factory, when normally producing, the gas consumption of anode-baking furnace is about 78m3/ t,
Fuel availability general about about 55%, remaining heat be then consumed in out kiln gas, grog of coming out of the stove,
Imperfect combustion in cold air entrance, boiler face heat radiation and stove.Wherein, boiler face heat radiation accounts for anode
The 7% of roaster total heat expenditure.The roast area of roaster is the region of flame combustion, in the region
Carbon product need to be by the roasting of 900～1100 DEG C, and the coke grid of formation could be by all different chis
Very little coke granule is securely attached together.Now, furnace surface temperature often reaches 150～220 DEG C
Left and right, especially when high-temperature flue gas direct long term contact causes furnace roof deformation and cracking, causes furnace chamber
Negative pressure loss is relatively big, and thermal losses is by more.Therefore, strengthen the insulation of anode-baking furnace boiler face, subtract
Few boiler face heat radiation is Important Action energy-saving and cost-reducing in roasting process.
When normally producing, this device is arranged on anode-baking furnace high-temperature region (refer mainly to roast area and
Preheating zone) outer surface at top, the square Semi surrounding type radiation protective casing of this device, overall in half
Open square container structure, the housing center at observation port has than observation port external diameter slightly
Big circular hole, square Semi surrounding type radiation protective casing is made up of the high temperature resistant steel plate of 2～5mm, energy
The high temperature of outer surface of high of resistance to roaster, simultaneously because the emissivity of metal is more much smaller than nonmetallic, and
The temperature of square Semi surrounding type radiation protective casing is more much lower than furnace roof so that this square Semi surrounding type
Radiation protective casing can reduce the furnace roof energy to ambient radiation in a large number.Internal filling insulation material
By the expanded vermiculite that degree is 62%, the silicate heat-protective coatings of 22%, 7.2% high temperature resistant
The pressurization of the material such as cement, the glass mat of 7.8% and rock wool is mixed, uniformly and the filling out of consolidation
Fill the inside face of square Semi surrounding type radiation protective casing, and open surface end construct one semi-open
Air cavity i.e. heat insulation cavity, this insulation material biography when normal pressure, thermodynamic temperature 473K
Hot coefficient is less than 0.012W/m K, thickness about 15～50mm, can completely cut off the heat of overwhelming majority energy
Conduction, and its specific heat ratio routine insulation material is little, the heat therefore itself absorbed is little, only
The 1/8 of common material, effectively reduces the thermal capacity of attemperator itself.Heat insulation cavity is by inside
Opening when filling the semi open model cavity of filled thermal insulation materials square Semi surrounding type radiation protective casing
Face end constructs (detecting mouth for observation port in the middle of the heat insulation cavity of attemperator at observation port), interior
Portion fill insulation material by the inner surface metal part of square Semi surrounding type radiation protective casing (include with
The edge of boiler face contact) all wrap, thus reduce the heat outwardly conducted from radiation protective casing,
The long 9/10L of heat insulation cavity1, wide 9/10L2, highly 10～20mm；Heat insulation cavity can not only be avoided protecting
Adiabator directly contacts with furnace roof high temperature surface, and the cavity space center of formation is also K-type thermocouple
Measure head install position, this can make single K-type thermocouple detect one piece of bigger boiler face region,
When there is crack such as roasting boiler face, red-hot flue gas will be filled with heat insulation cavity, thus by K-type heat
Galvanic couple detects that high temperature fluctuates.K-type thermocouple temperature measurement scope between 0 DEG C～1200 DEG C,
Thermal response time is 0.2S, and the measurement head of K-type thermocouple is arranged on the center in the space of heat insulation cavity
(the installation of TC at observation port is in 7/10L in position1、1/2L2Place)；K-type thermocouple will be measured continuously
The temperature of cavity center point, is depicted as time t temperature DEG C curve at PC end the data recorded,
Facilitate the ruuning situation that staff observes and judges roaster；As due to high-temperature flue gas the most direct
Contact furnace roof, depositing of furnace roof deformation and cracking, internal filling insulation material and heat insulation cavity can be caused
Internal for the roaster caused due to cracking hot flue gas can be limited in heat insulation cavity, greatly subtract
Few thermal loss, the temperature fluctuation that K-type thermocouple is monitored in real time then will be accurate and quick to work
Make the abnormal conditions of staff response roaster, help the quick queueing problem of staff and dangerous situation.Post
Leg is made up of the round steel post of diameter 6～8mm, is resistant to roaster high temperature of outer surface of high, 4 round steel posts
It is separately mounted to 1/5L symmetrical inside square Semi surrounding type radiation protective casing1With 4/5L1Position；Peace
It is inserted in during dress in the brickwork joint between roasting boiler face combustor and hopper, facilitates staff to open guarantor
Roaster is overhauled and regular maintenance by temperature device, can guarantee that this device normal and continuous operation reaches
More than 7 years.
High insulating effect of the present invention, can save the heat accounting for anode-baking furnace total heat expenditure nearly 6.52%,
Cheap, possess extremely strong insulating power, furnace surface temperature fluctuation can be monitored in real time and observe at any time
The function such as situation in stove, can reach more than 7 years, operation maintenance workload is little, dismounting side service life
Just quickly, operating cost low, be adapted as anode-baking furnace (containing ring-form calcining furnace, fired tank-type roasting
Burn stove, one-way fired furnace) external heat preserving device in top (containing roast area, preheating zone, other district).
Accompanying drawing explanation
Fig. 1 is that the present invention removes the quirk position main half sectional view of attemperator.
Fig. 2 is the main sectional view of attemperator at quirk of the present invention.
Fig. 3 is that the present invention removes quirk position attemperator sectional view.
Fig. 4 is attemperator sectional view at quirk of the present invention.
Detailed description of the invention
The detailed description of the invention of the present invention, describes in detail below in conjunction with the accompanying drawings.
As shown in figures 1 and 3, the semi open model cavity of square Semi surrounding type radiation protective casing 1 is equal
Even and consolidation is filled with internal filling insulation material 2, and is filled with the opening of insulation material 2
Face end constructs a semi-open heat insulation cavity 4, and square Semi surrounding type radiation protective casing 1 sets
The measurement head having K-type thermocouple 5 and K-type thermocouple 5 is in heat insulation cavity 4, K-type thermoelectricity
The central spot in even 5 spaces being fixed on heat insulation cavity 4, at square Semi surrounding type radiation protective casing
The inner surface of 1 is provided with 4 cylinder legs 3 playing fixation.
As shown in Figure 2 and Figure 4, the semi open model cavity of square Semi surrounding type radiation protective casing 1 is uniform
And consolidation is filled with internal filling insulation material 2, and it is filled with the open surface of insulation material 2
End constructs a semi-open heat insulation cavity 4, the center of square Semi surrounding type radiation protective casing 1
Have the circular hole more bigger than observation port aperture and constructed observation port inspection by inside filling insulation material 2
Surveying mouth 6, square Semi surrounding type radiation protective casing 1 is provided with K-type thermocouple 5 and K-type thermocouple
The measurement head of 5 is in heat insulation cavity 4, and K-type thermocouple 5 is installed in heat insulation cavity 4
7/10L1、1/2L2Place, the inner surface at square Semi surrounding type radiation protective casing 1 is provided with 4 and rises fixing
The cylinder leg 3 of effect.
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, square Semi surrounding type radiation protective casing 1, inside
Filling insulation material 2 and heat insulation cavity 4 collectively form the heat-insulation layer of roaster；K-type thermocouple 5
Monitor the temperature of heat insulation cavity in real time；Observation port detection mouth 6 facilitates staff to open quirk at any time
Insulation cover, detects roaster inside and observes；External thermal insulation is risen fixing by cylinder leg 3
Effect.
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, in the present invention, outside square Semi surrounding type radioprotective
Shell 1 entirety is the square container structure of semi open model, and the housing center at observation port has ratio
The circular hole that observation port external diameter is bigger, square Semi surrounding type radiation protective casing 1 by 2～5mm resistance to height
Temperature steel plate is made, and is resistant to roaster high temperature of outer surface of high.
In the present invention, internal fill insulation material 2 by the expanded vermiculite that degree is 62%,
The silicate heat-protective coatings of 22%, the high temperature resistant cement of 7.2%, the glass mat of 7.8% and rock wool
Be mixed Deng material pressurization, uniformly and consolidation be filled in square Semi surrounding type radiation protective casing 1
Semi open model cavity, and construct a semi-open air cavity at open surface end and be i.e. incubated sky
Chamber 4.This internal filling insulation material 2 heat transfer coefficient when normal pressure, thermodynamic temperature 473K is little
In 0.012W/m K, thickness about 15～50mm, its specific heat ratio routine insulation material is little, therefore
The heat itself absorbed is little, only the 1/8 of common material, and major part heat is by its isolation transmission.
The attemperator being filled with this material is installed at high temperature of outer surface of high district, roaster top and observation port,
The temperature in roaster hearth can be effectively improved, typically can improve 5～65 DEG C；And open compared to top
When being opened to air, the heat through the loss of roaster top external environment can reduce more than 6.52%,
It is obviously improved energy utilization rate.
In the present invention, heat insulation cavity 4 is filled insulation material 2 by inside and is filled in square Semi surrounding type
(attemperator at observation port is constructed at open surface end during the semi open model cavity of radiation protective casing 1
Heat insulation cavity 4 in the middle of for observation port detection mouth 6), its a length of 9/10L1, a width of 9/10L2, empty
Chamber height h is 10～20mm, L1For the length of side of square Semi surrounding type radiation protective casing 1, L2For side
The hem width of shape Semi surrounding type radiation protective casing 1.The heat conductivity of metal typically arrives hundreds of tens
Between W/m K, so the internal insulation material 2 of filling of the present invention is by square Semi surrounding type radioprotective
The inner surface metal part of shell 1 all wraps (including the edge contacted with boiler face).Insulation sky
Chamber 4 can not only avoid internal insulation material 2 of filling directly to contact with furnace roof high temperature surface；Formed
Cavity space center is also the position that K-type thermocouple 5 measures that head is installed, and this can make single K-type heat
Galvanic couple 5 detects one piece of bigger boiler face region, when there is crack such as roasting boiler face, red-hot flue gas
Heat insulation cavity 4 will be filled with, thus detected that high temperature fluctuates by K-type thermocouple 5.Additionally
Under closed state, when normal pressure, thermodynamic temperature 473K, the coefficient of heat transfer of air own is at 0.03W/m K
Left and right, therefore heat insulation cavity 4 itself also has certain heat insulation effect.
In the present invention, K-type thermocouple 5 temperature-measuring range is between 0～1200 DEG C, and thermal response time is
0.2S, the head of measuring of K-type thermocouple 5 is arranged on the center (observation in heat insulation cavity 4 space
K-type thermocouple 5 at hole detection mouth 6 is installed on 7/10L in heat insulation cavity 41、1/2L2Place).K-type
Thermocouple 5 will measure the temperature of cavity center point in real time, at PC end, the data recorded is depicted as
Time t temperature DEG C curve, facilitates the ruuning situation that staff observes and judges roaster.
In the present invention, cylinder leg 3 is made up of the round steel post of diameter 6～8mm, is resistant to outside roaster
Surface high-temp, 4 cylinder legs 3 are separately mounted to inside square Semi surrounding type radiation protective casing 1
Symmetrical 1/5L1With 4/5L1Position.It is inserted in during installation between roasting boiler face combustor and hopper
In brickwork joint, facilitate staff to open attemperator and roaster is overhauled and regular maintenance.L1
The length of side for square Semi surrounding type radiation protective casing 1.
In the present invention, observation port detection mouth 6 is by the inside in square Semi surrounding type radiation protective casing 1
Filling insulation material 2 to construct at observation port opening part, its external diameter is more bigger than observation port aperture, peace
Can well fit after dress observation port.This observation port detection mouth 6 can have concurrently high-efficiency insulated while
Staff is facilitated to observe situation in stove at any time.
A kind of concrete application of the present invention is that the energy conservation being used in anode-baking furnace is worked as
In, it is not necessary to put in a large number, stronger heat preservation and energy conservation effects can be reached and good detect effect in real time
Really.The method is in terms of the conduction of heat of roaster environment to external world, heat convection, radiant heat transfer three
Start with, by reducing furnace roof each side heat loss, reach energy-saving and cost-reducing purpose.Heat insulation cavity and
K-type thermocouple makes the present invention can monitor the temperature conditions on roasting oven top surface in real time, helps work
Personnel judge that whether working properly roaster is, can help after the temperature fluctuation that notes abnormalities staff and
Time remove the dangerous condition and hidden danger.The present invention at observation port can have concurrently high-efficiency insulated while facilitate work
Make personnel and observe situation in stove at any time.Typically can be saved by the Appropriate application present invention and account for anode-baking
Stove total heat pays the heat of nearly 6.52%, and this device also has easy for operation, heat insulation effect
Good, length in service life (can reach more than 7 years), operation maintenance workload is little, operating cost is low, no
Affecting the various features such as normal operating of roaster, additionally this device uses flexibly, can be the quickest
Position any to roasting oven top carry out Rapid-Repair, also can determine entirety still according to field condition
Local uses, and reaches the maximization of resource interest rate.
Claims (10)
1. be suitable to a top attemperator for anode-baking furnace, it is characterized in that: the anti-spoke of Semi surrounding type
Uniformly and consolidation is filled with and internal fills insulation material (2) to penetrate the semi open model cavity of shell (1),
And the open surface end filling insulation material in described inside constructs a semi-open insulation sky
Chamber (4), described Semi surrounding type radiation protective casing is provided with thermocouple (5) and described thermoelectricity
Even head of measuring is in described heat insulation cavity (4), the attemperator center at quirk
Being provided with observation port detection mouth (6), the inner surface at described Semi surrounding type radiation protective casing is installed
There are the many legs (3) playing fixation.
The top attemperator being suitable to anode-baking furnace the most according to claim 1, its feature
It is: described Semi surrounding type radiation protective casing is square Semi surrounding type radiation protective casing (1).
The top attemperator being suitable to anode-baking furnace the most according to claim 1 and 2, its
Feature is: described thermocouple is K-type thermocouple (5).
The top attemperator being suitable to anode-baking furnace the most according to claim 1 and 2, its
Feature is: described cylinder leg is cylinder leg (3).
The top attemperator being suitable to anode-baking furnace the most according to claim 1 and 2, its
Feature is: the center of described Semi surrounding type radiation protective casing has the circle more bigger than observation port aperture
Hole is also constructed observation port detection mouth (6) by described inside filling insulation material (2).
The top attemperator being suitable to anode-baking furnace the most according to claim 1 and 2, its
Feature is: the inner surface symmetric position in described Semi surrounding type radiation protective casing both sides is provided with 4
Described leg, the mount point of described leg is 1/5L inside limit, place1With 4/5L1Position, L1
The length of side for described Semi surrounding type radiation protective casing.
The top attemperator being suitable to anode-baking furnace the most according to claim 1 and 2, its
Feature is: described Semi surrounding type radiation protective casing is made up of the high temperature resistant steel plate of 2～5mm.
The top attemperator being suitable to anode-baking furnace the most according to claim 1 and 2, its
Feature is: described inside fill insulation material (2) by the expanded vermiculite that degree is 62%,
The silicate heat-protective coatings of 22%, the high temperature resistant cement of 7.2%, the glass mat of 7.8% and rock wool
Pressurization is mixed, and insulation material (2) is filled in normal pressure, thermodynamic temperature 473K in described inside
Time heat transfer coefficient less than 0.012W/m K, thickness is 15～50mm.
The top attemperator being suitable to anode-baking furnace the most according to claim 1 and 2, its
Feature is: a length of 9/10L of described heat insulation cavity (4)1, a width of 9/10L2, cavity height h
It is the 10～20mm top attemperators being suitable to anode-baking furnace, L1For the described anti-spoke of Semi surrounding type
Penetrate the length of side of shell, L2Hem width for described Semi surrounding type radiation protective casing.
The top attemperator being suitable to anode-baking furnace the most according to claim 1 and 2,
It is characterized in that: the temperature-measuring range of described thermocouple between 0 DEG C～1200 DEG C, thermal response time
For 0.2S.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108166017A (en) * | 2016-12-07 | 2018-06-15 | 高德金 | A kind of pre-calcining electrolytic cell production technology |
| CN109898098A (en) * | 2019-04-22 | 2019-06-18 | 贵州铝城铝业原材料研究发展有限公司 | A kind of prebaked anode in aluminium cell insulation construction |
| CN110029366A (en) * | 2019-04-22 | 2019-07-19 | 贵州铝城铝业原材料研究发展有限公司 | A kind of mechanical steel pawl insulation construction of aluminium electroloysis continuous prebaked anode cell |
| CN110106527A (en) * | 2019-04-02 | 2019-08-09 | 贵州省六盘水双元铝业有限责任公司 | A kind of electrolytic cell stereoscopic heat-insulating device |
| CN114030063A (en) * | 2021-11-03 | 2022-02-11 | 阿坝铝厂 | Pre-baked anode carbon block anti-oxidation structure |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2746341Y (en) * | 2004-10-25 | 2005-12-14 | 贵阳铝镁设计研究院 | Lid of light carbon cathode roasting furnace |
| CN1900646A (en) * | 2006-07-27 | 2007-01-24 | 上海交通大学 | Method for reducing industrial furnace shell heat loss by mounting heat insulation box on furnace outer shell |
| CN103086661A (en) * | 2011-10-27 | 2013-05-08 | 深圳市爱思宝科技发展有限公司 | Thermal insulation and heat preservation slurry composition and thermal insulation and heat preservation plate containing the same |
| US20140072011A1 (en) * | 2008-11-17 | 2014-03-13 | Sms Demag Llc | Sensor system for bottom electrodes of an electric arc furnace |
| CN203810931U (en) * | 2014-03-03 | 2014-09-03 | 重庆三爱海陵实业有限责任公司 | Quenching furnace door cover |
| CN104596288A (en) * | 2015-02-02 | 2015-05-06 | 沈阳创联炉窑技术有限公司 | Communicating flame path of carbon anode baking furnace |
-
2016
- 2016-04-21 CN CN201610250560.1A patent/CN105865207B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2746341Y (en) * | 2004-10-25 | 2005-12-14 | 贵阳铝镁设计研究院 | Lid of light carbon cathode roasting furnace |
| CN1900646A (en) * | 2006-07-27 | 2007-01-24 | 上海交通大学 | Method for reducing industrial furnace shell heat loss by mounting heat insulation box on furnace outer shell |
| US20140072011A1 (en) * | 2008-11-17 | 2014-03-13 | Sms Demag Llc | Sensor system for bottom electrodes of an electric arc furnace |
| CN103086661A (en) * | 2011-10-27 | 2013-05-08 | 深圳市爱思宝科技发展有限公司 | Thermal insulation and heat preservation slurry composition and thermal insulation and heat preservation plate containing the same |
| CN203810931U (en) * | 2014-03-03 | 2014-09-03 | 重庆三爱海陵实业有限责任公司 | Quenching furnace door cover |
| CN104596288A (en) * | 2015-02-02 | 2015-05-06 | 沈阳创联炉窑技术有限公司 | Communicating flame path of carbon anode baking furnace |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108166017A (en) * | 2016-12-07 | 2018-06-15 | 高德金 | A kind of pre-calcining electrolytic cell production technology |
| CN110106527A (en) * | 2019-04-02 | 2019-08-09 | 贵州省六盘水双元铝业有限责任公司 | A kind of electrolytic cell stereoscopic heat-insulating device |
| CN109898098A (en) * | 2019-04-22 | 2019-06-18 | 贵州铝城铝业原材料研究发展有限公司 | A kind of prebaked anode in aluminium cell insulation construction |
| CN110029366A (en) * | 2019-04-22 | 2019-07-19 | 贵州铝城铝业原材料研究发展有限公司 | A kind of mechanical steel pawl insulation construction of aluminium electroloysis continuous prebaked anode cell |
| CN114030063A (en) * | 2021-11-03 | 2022-02-11 | 阿坝铝厂 | Pre-baked anode carbon block anti-oxidation structure |
| CN114030063B (en) * | 2021-11-03 | 2023-02-14 | 阿坝铝厂 | Pre-baked anode carbon block anti-oxidation structure |
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|---|---|
| CN105865207B (en) | 2018-02-27 |
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