CN106546105B - The method for monitoring calcining carbon products temperature in roaster - Google Patents
The method for monitoring calcining carbon products temperature in roaster Download PDFInfo
- Publication number
- CN106546105B CN106546105B CN201610975747.8A CN201610975747A CN106546105B CN 106546105 B CN106546105 B CN 106546105B CN 201610975747 A CN201610975747 A CN 201610975747A CN 106546105 B CN106546105 B CN 106546105B
- Authority
- CN
- China
- Prior art keywords
- temperature
- thermocouple
- quirk
- calcining carbon
- product
- Prior art date
- 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.)
- Active
Links
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 73
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 73
- 238000001354 calcination Methods 0.000 title claims abstract description 72
- 238000000034 method Methods 0.000 title claims abstract description 38
- 238000012544 monitoring process Methods 0.000 title claims abstract description 26
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 31
- 239000003546 flue gas Substances 0.000 claims abstract description 31
- 230000008859 change Effects 0.000 claims abstract description 12
- 230000001174 ascending effect Effects 0.000 claims abstract description 7
- 238000005245 sintering Methods 0.000 claims abstract description 6
- 238000012512 characterization method Methods 0.000 claims abstract description 4
- 239000000779 smoke Substances 0.000 claims abstract description 3
- 238000010438 heat treatment Methods 0.000 claims description 19
- 239000003610 charcoal Substances 0.000 claims description 9
- 239000000446 fuel Substances 0.000 claims description 9
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 6
- 238000012797 qualification Methods 0.000 claims description 6
- 230000005619 thermoelectricity Effects 0.000 claims description 6
- 238000012856 packing Methods 0.000 claims description 4
- 210000000481 breast Anatomy 0.000 claims description 3
- 238000009826 distribution Methods 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- 230000008569 process Effects 0.000 abstract description 10
- 238000004513 sizing Methods 0.000 abstract description 2
- 238000012360 testing method Methods 0.000 abstract description 2
- 239000011295 pitch Substances 0.000 description 8
- 238000001514 detection method Methods 0.000 description 5
- 238000007796 conventional method Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 4
- 238000009472 formulation Methods 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 239000004484 Briquette Substances 0.000 description 3
- 239000000571 coke Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000036760 body temperature Effects 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 239000011294 coal tar pitch Substances 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 210000004243 sweat Anatomy 0.000 description 1
Classifications
-
- 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
- F27D19/00—Arrangements of controlling devices
-
- 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
- C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
- C04B35/52—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite
-
- 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
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/64—Burning or sintering processes
-
- 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
- F27D21/00—Arrangement of monitoring devices; Arrangement of safety devices
- F27D21/0014—Devices for monitoring temperature
-
- 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
- F27D19/00—Arrangements of controlling devices
- F27D2019/0003—Monitoring the temperature or a characteristic of the charge and using it as a controlling value
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The invention discloses a kind of methods of calcining carbon products temperature in monitoring roaster, the thermocouple service life can significantly be extended using the present invention, accurate calcining carbon product of grasping is in in-furnace temperature change procedure, the technical scheme is that: the product real time temperature reacted by thermocouple in furnace chamber, the variation of flue-gas temperature ascending temperature is transmitted to the temperature detecting point of calcining carbon product each section in the quirk controlled with every quirk by pre-programmed curve, then quirk smoke temperature change is found out according to normal state statistic curve and obtains real-time temperature rise curve with the rule that product test point temperature changes over time, make the temperature rise curve of each quirk baking flue gas in characterization sintering process；To obtain state of temperature of the product in furnace box, furnace chamber center is roasted in every case of ring-form calcining furnace, one thermocouple for reflecting calcining carbon product real time temperature is set close to the position of calcining carbon product；Fire path temperature reaches 950 DEG C of sizing calcining carbon products, takes out quirk thermocouple.
Description
Technical field
The present invention relates to a kind of methods of calcining carbon products temperature in monitoring roaster.
Background technique
Roasting is the important procedure in calcining carbon article manufacturing process.By roasting, not only make the machinery of carbon material
Intensity stabilization, and its thermal conductivity, electric conductivity and high temperature resistance can be improved significantly.End properties is roasted in very great Cheng
The variation of pitch in roasting process is depended on degree.In different temperature ranges, pitch by sweat coke amount variation not
Together.Therefore the key of roasting is that the temperature that baked article to be followed is experienced meets the changing rule of pitch in product.Due to roasting
The whole process of burning require its temperature control be a curve rather than straight line, and conventional instrument can not adjust automatically set
Definite value, this requires operators to go modification setting value at any time, this is also that made calciner temperature control can not in the past
The reason of reaching ideal temperature control.On the other hand, since field environmental condition is severe, baking furnace fume pressure change, filling
The factors such as the variation of variation, fuel supply of medium, fire path temperature control are difficult to meet the requirements always.At present, some large sizes
Modernization electrolytic aluminium factory and charcoal ink factory, mostly use Distributed Control System or PLC programmable control system greatly, form
Firing chamber's fire path temperature automatic control system.This control system is made of field control and Shop floor control two-stage.By on temperature measuring rack
Thermocouple measure the temperature of each quirk and hopper respectively, fuel on corresponding quirk is changed by automatic control system automatically
The amount of injection.The advantages of automatic system, is only limitted to for the manual control of conventional method being somebody's turn to do and automatically control for PLC, can strictly press
The temperature-rise period of furnace chamber is completed according to preset temperature curve.Defect is that the amount of injection of fuel on quirk depends on flue gas in quirk
Temperature, the variation of products temperature in furnace chamber hopper cannot be taken into account.Roast furnace type structure and working principle be similar to tunnel oven and
Down-draft kiln, flue gas through a plurality of quirk by-pass flue (flue quantity depend on design furnace chamber number) come together in flue collector by chimney
It is discharged, product is transmitted to product and is heated by the heat that flue gas in quirk carries by quirk furnace wall, filler material in furnace chamber case.
Roasting is to use coke powder other suitable filled medias such as (also may be selected) quartz sands as protecting medium in roaster,
Completely cut off under air conditions, according to the technical requirements of product, product is heated to 850 DEG C of process by certain heating rate, one
As fire path temperature reach 1200~1300 DEG C.Flue-gas temperature is extremely unstable in quirk simultaneously, it has been generally acknowledged that flue-gas temperature 400~
It is the critical stage for determining roasting quality between 650 DEG C.
Calcining carbon product is using coke granule and coal tar pitch as raw material, and life is made in pressurization after the two is mixed in a certain ratio
Briquet.Fuel generally uses natural gas or coal gas, and the roasting type of furnace is ring-form calcining furnace structure.The green briquette of extrusion forming is packed into
It roasts in furnace chamber, coke powder is filled between green briquette, between green briquette and furnace wall as protection medium, fire path temperature is from room temperature
It rises between 1200~1300, at calcining carbon product after held for some time.Calcining carbon product self-temperature generally requires
Not less than 850 DEG C.After fire path temperature reaches 950 DEG C, calcining carbon product has been formed, 400~650 DEG C of fire path temperature
The rate of climb can bring the defect of configuration aspects for calcining carbon product, reduce roasting qualification rate.Temperature difference above and below in furnace chamber
It is very big, 250~300 DEG C can be generally up to, causes the physical mechanical property of product uneven up and down, finished product rate is caused to decline;
The thermal inertia of furnace chamber is big, it is very difficult to by the heating speed baked article permitted in technique.It was found that these defects limit and roasted
The reinforcing of journey so that the quality of the ever-increasing long size Large size carbon electrode of the roasting quality of product, especially demand declines.
Each producer of the prior art, to the actual temperature of calcining carbon product in roaster, is all made of in the process control of heating process
The method that experience speculates.Its specific way is gone according to fire path temperature by experience using thermocouple monitoring baking furnace flame path temperature
Speculate the temperature of product in furnace.This conventional method has the following deficiencies:
Due to being influenced by oven chamber structure, packing medium, negative pressure and fuel change, temperature that different furnace chamber products are experienced
Difference, operator the product real time temperature reacted according to thermocouple in furnace chamber, real-time forecast value revision quirk can be needed
The trend of interior flue gas heating curve, more fitting product pitch variation when the variation of flue-gas temperature in quirk can just be made to be transmitted to product
Rule.Therefore it is big only by the temperature that experience speculates will necessarily to lead to the problem of deviation, also results in technologist and roasts formulating
An empirical fixed curve can only be formulated when burning furnace temperature ascending curve, if what temperature controllers empirically speculated
Fixed temperature rise curve completes the temperature-rise period of roaster, and the unstable or energy consumption that this will lead to calcining carbon quality of item is inclined
It is high；S Graduation Number thermocouple used by followed by traditional temp measuring method is at high price, using cheap K Graduation Number thermoelectricity
Even monitoring flue-gas temperature damage is again too fast, and thermocouple use cost is high.
By taking N number of furnace chamber case Room 8 operating in the every room of open-type ring-type roasting furnace as an example, each furnace chamber shares the inspection of quirk flue-gas temperature
Measuring point 2N+2, each flame system shares quirk flue-gas temperature test point 16N+16, and detection of negative pressure point N+2, temperature is held
14, row mechanism, heater 14(N+1) a, control point 14(N+1) it is a.System is adjusted using operator according to detection temperature in real time
Whole method.In the heating process of formulation, the parameter set has the initial temperature of baking heat flue gas, heating rate, end
Only temperature, final temperature duration and smoke evacuation pressure.The reality of flue gas in the quirk that operator is transmitted according to thermocouple
Shi Wendu adjusts the pressure of flue gas in the supply and quirk of fuel compared with set temperature in real time, to reach in control quirk
The purpose of flue-gas temperature.Since detection means falls behind, the operation control period is longer, is unable to the real-time temperature of Accurate Prediction detection product
Degree, human factor is affected, to cause product quality and qualification rate low, produces unstable, production energy consumption height.
Summary of the invention
In place of in view of the deficiency of the prior art, a kind of calcining carbon product waste product is provided
Probability it is low, can significantly extend the thermocouple service life, can accurately grasp calcining carbon product temperature change in roaster
Process, and can accurately reflect calcining carbon product maximum temperature in furnace, it can prevent calcining carbon products temperature is excessively high to cause energy consumption
Rise and occur the method for monitoring calcining carbon products temperature in roaster of low temperature calcining carbon product；Temperature prison is solved simultaneously
Survey the too fast problem of thermocouple break used.
Above-mentioned purpose of the invention can be reached by the following measures, calcining carbon product temperature in a kind of monitoring roaster
The method of degree, it is characterised in that include the following steps: to stablize the qualification rate of calcining carbon product, according to calcining carbon product sheet
Body temperature is followed the bitumeniferous variation of this furnace interior articles institute by the variation formulation of oven chamber structure, packing medium, negative pressure and fuel
Rule, the product real time temperature reacted by thermocouple in furnace chamber, for sintering initial temperature, heating rate, outlet temperature, with
Every quirk is transmitted to calcining carbon product each section by flue-gas temperature ascending temperature variation in the quirk under pre-programmed curve control
Temperature detecting point, the variation of the Temperature Distribution temperature difference increased with temperature obtain temperature rise data, then according to normal state statistic curve
It finds out the rule changed over time and obtains temperature rise curve, make the real-time temperature of each quirk baking flue gas in characterization sintering process
Rise curve；For the state of temperature for obtaining product, furnace chamber center is roasted close to calcining carbon product in every case of ring-form calcining furnace
The thermocouple of a reflection calcining carbon product real time temperature is arranged in position；It is reached in roaster center thermocouple reflection temperature
Stop heat supply when (850-M) DEG C, after fire path temperature reaches 950 DEG C, calcining carbon product of being formed takes out quirk thermoelectricity
It is even, the reflected temperature of thermocouple of furnace chamber center close to calcining carbon product is monitored, M is thermal inertia ascending temperature value.
The present invention has the advantages that compared with the prior art.
Reduce the probability of calcining carbon product waste product.The present invention, which is used, roasts furnace chamber center close to calcining carbon in every case
The thermocouple of the real time temperature of a reflection calcining carbon product is arranged in the position of product, and operator can accurately grasp charcoal element
Baked article temperature changing process in roaster, and calcining carbon product minimum temperature region in energy accurate observation reflection furnace
Maximum temperature, the product real time temperature easily reacted according to thermocouple in furnace chamber, flue gas liter in real-time forecast value revision quirk
The trend of warm curve, the rule of more fitting product pitch variation when the variation of flue-gas temperature in quirk being made to be transmitted to product；The heat
The reflected temperature of galvanic couple can reflection calcining carbon product accurately and timely reach time of maximum temperature, control people convenient for temperature
Member adjusts rate of rise in temperature in time, reduces the probability that structural waste product occurs in temperature-rise period in calcining carbon product, together
When can stop the supply of heat in time when calcining carbon product reaches the maximum temperature of technique requirement, reach energy-efficient mesh
, the roasting qualification rate of charcoal element calcining carbon product is stablized in a high level.Its calcining carbon job efficiency can
To stablize 99.5% or more.
Significantly extend the thermocouple service life.The present invention is directed to initial temperature, the heating rate, terminal that product itself is sintered
Temperature ignores the problem of detection in traditional handicraft, changes traditional monitoring and control to roasting system temperature, in roaster
Center electric thermo-couple temperature, which reflects, stops heat supply when temperature reaches (850-M) DEG C, first is that avoiding under traditional heating curve system
Occur inadequate 850 DEG C of products temperature stopped the supply of heat by temperature schedule, second is that avoiding going out under conventional curvature system
Existing products temperature is practical have reached 850 DEG C and in order to reach technique require to continue to supply heat and caused by energy waste.?
After fire path temperature reaches 950 DEG C, quirk thermocouple is taken out, the thermocouple institute for only monitoring furnace chamber center close to calcining carbon product is anti-
Reflect temperature.Since after fire path temperature reaches 950 DEG C, calcining carbon product has been formed, on 950 DEG C or more of fire path temperature
Lifting speed will not bring the defect of configuration aspects for calcining carbon product, and select cheap, can satisfy impression temperature
The K Graduation Number thermocouple of up to 950 DEG C requirements of degree replaces expensive S Graduation Number thermocouple, and reaching, which reduces thermocouple, makes
With the purpose of cost.Thermocouple service life can significantly be extended when selecting the thermocouple of cheap K Graduation Number, according to
Statistics, the K Graduation Number thermocouple service life that the present invention uses is 3 times or more of the K Graduation Number service life of conventional method.Phase
Than can significantly extend the service life of thermocouple in traditional temp measuring method.Since the nickel network Nickel-Silicom thermocouple of K Graduation Number exists
Using temperature be no more than 950 DEG C when, service life be 8 to 10 times, after 950 DEG C, the service life of thermocouple be only 2 to
3 times, the use temperature of thermocouple is set to be no more than 950 DEG C using this method, to solve thermocouple break mistake used in temperature monitoring
Fast problem.According to statistics, using this temperature monitoring method, natural gas calcining carbon product consumption per ton is reduced than conventional method
20%；Two 18 Room open-type ring-type roasting furnaces of Long Xingtansu Co., Ltd, Jianyang of Sichuan, using this method to the charcoal element of processing
Calcining carbon product carries out temperature monitoring, and calcining carbon job efficiency is stable always 99.6% or more, and energy consumption is than other uses
The same type roaster low 21% of conventional temperature monitoring method, thermocouple cost lower than the prior art 60%.
Detailed description of the invention
Fig. 1 be the present invention monitoring roaster in calcining carbon products temperature by thermocouple schematic layout pattern in furnace chamber.
Specific embodiment
Refering to fig. 1.According to the present invention, specific embodiment is following (by taking 5 furnace chamber casees of every furnace chamber as an example), to stablize charcoal element
The qualification rate of baked article, according to calcining carbon product self-temperature by the variation of oven chamber structure, packing medium, negative pressure and fuel
Formulation follows the bitumeniferous changing rule of this furnace interior articles institute, the product real time temperature reacted by thermocouple in furnace chamber, needle
To sintering initial temperature, heating rate, outlet temperature, risen with every quirk by flue-gas temperature in the quirk under pre-programmed curve control
Temperature change is transmitted to the temperature detecting point of calcining carbon product each section, and the variation of the Temperature Distribution temperature difference increased with temperature comes
Temperature rise data are obtained, the rule changed over time is then found out according to normal state statistic curve and obtains temperature rise curve, makes characterization
The real-time temperature rise curve of each quirk baking flue gas in sintering process；For obtain product state of temperature, in ring-form calcining furnace
Every case roasts the thermoelectricity that a reflection calcining carbon product real time temperature is arranged close to the position of calcining carbon product for furnace chamber center
It is even；Stop heat supply when thermocouple reflection temperature in roaster center reaches (850-M) DEG C, reaches 950 DEG C in fire path temperature
Afterwards, sizing calcining carbon product, takes out quirk thermocouple, and the thermocouple of monitoring furnace chamber center close to calcining carbon product is reflected
Temperature, M are thermal inertia ascending temperature value.
Furnace chamber thermocouple setting: using the nickel network Nickel-Silicom thermocouple of cheap K Graduation Number stainless steel protection pipe, by charcoal
Plain baked article requires to be packed into roaster chamber according to charging technique, when filling coke powder does not bury product completely
It waits, adds the thermocouple of monitoring furnace chamber products temperature in No. 1, No. 3, No. 5 roaster chambers, the status requirement of thermocouple is set such as
Under: a thermocouple is arranged (note that heat close to the place of calcining carbon product edges in the bosom point in width of furnace direction
Point is even not to be directly born against on product, and adhesion thermocouple causes product to damage when preventing product from being expanded by thermal softening), in furnace chamber case
Length direction on to consider the position for being disposed furthest from nozzle hot spot, to guarantee that monitored temperature is approximately furnace chamber case
Low temperature point.Therefore, the bosom point in width of furnace direction is arranged in thermocouple, furnace chamber case length direction far from nozzle hot spot
Position, close to the place of calcining carbon product edges.Quirk flue gas thermocouple is conventionally arranged.In temperature-controlled chamber
Interior, setting corresponds to the furnace chamber case temperature display point of thermocouple.
Before furnace chamber enters flame system.Empirically meet pitch in this furnace chamber changing rule for operator default one
Heating curve, heating curve include initial temperature, the heating rate in each stage, maximum temperature be 950 DEG C.Furnace chamber enters flame
It is tightly hot in monitoring furnace chamber case in the process first, in accordance with flue-gas temperature in the process curve control quirk of formulation after system
The temperature change that galvanic couple is reflected.When the temperature of furnace chamber case is between 300 DEG C to 600 DEG C, operator is according to furnace chamber case thermoelectricity
The rate of rise in temperature occasionally transmitted adjusts the supply and flue gas pressures of quirk heat in time, strict control quirk flue-gas temperature
The rate of climb, and inappropriate heating curve pre-established is corrected, to guarantee that the temperature change of product meets the variation of pitch
Rule.
When fire path temperature flue gas reaches 950 DEG C, (furnace chamber box temperature degree at this time is not less than 700 DEG C, at this temperature, charcoal
Pitch in plain baked article has been completed that the physical and chemical reaction process of coking, the structure of product have been formed, after
Heating can only promote product have more good mechanical strength, good thermally conductive, electric conductivity, will not for product bring structure lack
Fall into), thermocouple in quirk is extracted, operator slowly uniformly increases the supply of heat in quirk, until thermoelectricity in furnace chamber case
Even temperature reaches (850-M) DEG C, stops the heat supply of the corresponding quirk of the furnace chamber.
Claims (7)
1. a kind of method of calcining carbon products temperature in monitoring roaster, it is characterised in that include the following steps: to stablize charcoal
The qualification rate of plain baked article, since the temperature of calcining carbon product itself is become by oven chamber structure, packing medium, negative pressure and fuel
The influence of change, the temperature formulated according to above-mentioned influence factor must follow in this furnace chamber the bitumeniferous variation of institute in carbon product and advise
Rule, the real time temperature for the product that the temperature is reflected by thermocouple in furnace chamber, for sintering initial temperature, heating rate, end
It is each to be transmitted to calcining carbon product by point temperature for the temperature change risen by flue-gas temperature in every quirk under pre-programmed curve control
Partial temperature detecting point, as the difference variation for the Temperature Distribution that smoke temperature change increases in every quirk obtains temperature rise number
According to then finding out the rule that temperature rise data change over time according to normal state statistic curve and obtain temperature rise curve, make characterization and burn
The real-time temperature rise curve of each quirk baking flue gas during knot；To obtain state of temperature of the product in furnace box, roasted in ring type
The furnace box for burning furnace roasts furnace chamber center and a reflection calcining carbon product real time temperature is arranged close to the position of calcining carbon product
Thermocouple；Stop heat supply when thermocouple reflection temperature in roaster center reaches 850-M DEG C, in fire path temperature >=950
After DEG C, calcining carbon product of being formed takes out quirk thermocouple, and the thermocouple institute of monitoring furnace chamber center close to calcining carbon product is anti-
Temperature is reflected, M is thermal inertia ascending temperature value.
2. monitoring the method for calcining carbon products temperature in roaster as described in claim 1, it is characterised in that: the heat
Galvanic couple is the nickel network Nickel-Silicom thermocouple of K Graduation Number stainless steel protection pipe.
3. monitoring the method for calcining carbon products temperature in roaster as claimed in claim 1 or 2, it is characterised in that: thermoelectricity
The bosom point in width of furnace direction is occasionally set, furnace chamber case length direction far from the position of nozzle hot spot, close to charcoal element
The place at baked article edge.
4. monitoring the method for calcining carbon products temperature in roaster as described in claim 1, it is characterised in that: in temperature control
System is indoor, and setting corresponds to the furnace chamber case temperature display point of thermocouple.
5. monitoring the method for calcining carbon products temperature in roaster as described in claim 1, it is characterised in that: heating curve
Heating rate comprising initial temperature, each stage, flue gas monitoring maximum temperature are 950 DEG C.
6. monitoring the method for calcining carbon products temperature in roaster as described in claim 1, it is characterised in that: in quirk temperature
When degree flue gas reaches 950 DEG C, thermocouple in quirk is extracted, slowly the uniform supply for increasing heat in quirk, until furnace chamber case
Interior electric thermo-couple temperature reaches 850-M DEG C, stops the heat supply of the corresponding quirk of the furnace chamber.
7. monitoring the method for calcining carbon products temperature in roaster as described in claim 1, it is characterised in that: stopping heat
Roaster presses thermal inertia after amount supply, and furnace chamber case central temperature rises a temperature M, and temperature M numerical value passes through every furnace chamber
Heating obtains for the first time；The M is thermal inertia ascending temperature value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610975747.8A CN106546105B (en) | 2016-11-07 | 2016-11-07 | The method for monitoring calcining carbon products temperature in roaster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610975747.8A CN106546105B (en) | 2016-11-07 | 2016-11-07 | The method for monitoring calcining carbon products temperature in roaster |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106546105A CN106546105A (en) | 2017-03-29 |
| CN106546105B true CN106546105B (en) | 2019-04-05 |
Family
ID=58394613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610975747.8A Active CN106546105B (en) | 2016-11-07 | 2016-11-07 | The method for monitoring calcining carbon products temperature in roaster |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106546105B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110567600A (en) * | 2018-06-05 | 2019-12-13 | 沈阳铝镁设计研究院有限公司 | Method for testing isothermal line of material box |
| CN114329873A (en) * | 2020-09-29 | 2022-04-12 | 青岛海尔智慧厨房电器有限公司 | Oven temperature determination method and device, oven and storage medium |
| CN117006859B (en) * | 2023-08-07 | 2024-02-23 | 怀来西玛通设备科技有限公司 | Intelligent control method, system and storage medium for carbon homogenizing and equal roasting |
| CN117800382B (en) * | 2023-12-29 | 2024-08-23 | 湖南本草制药有限责任公司 | Preparation method of medicinal lanthanum oxide |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2295978Y (en) * | 1996-09-18 | 1998-10-28 | 沈阳铝镁设计研究院 | Secondary roasting apparatus for carbon product |
| CN102265108A (en) * | 2008-12-24 | 2011-11-30 | 力拓艾尔坎国际有限公司 | Method and system for monitoring the operation of a carbon block baking plant |
| CN103123224A (en) * | 2011-11-21 | 2013-05-29 | 沈阳铝镁设计研究院有限公司 | Open-type roasting furnace heating curve and furnace moving operational method |
| CN104261839A (en) * | 2014-10-24 | 2015-01-07 | 彭红 | Method for establishing honeycomb ceramic firing system |
| CN204508817U (en) * | 2015-03-27 | 2015-07-29 | 长沙格翎电池材料有限公司 | A kind of graphite furnace temperature measuring apparatus |
-
2016
- 2016-11-07 CN CN201610975747.8A patent/CN106546105B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2295978Y (en) * | 1996-09-18 | 1998-10-28 | 沈阳铝镁设计研究院 | Secondary roasting apparatus for carbon product |
| CN102265108A (en) * | 2008-12-24 | 2011-11-30 | 力拓艾尔坎国际有限公司 | Method and system for monitoring the operation of a carbon block baking plant |
| CN103123224A (en) * | 2011-11-21 | 2013-05-29 | 沈阳铝镁设计研究院有限公司 | Open-type roasting furnace heating curve and furnace moving operational method |
| CN104261839A (en) * | 2014-10-24 | 2015-01-07 | 彭红 | Method for establishing honeycomb ceramic firing system |
| CN204508817U (en) * | 2015-03-27 | 2015-07-29 | 长沙格翎电池材料有限公司 | A kind of graphite furnace temperature measuring apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106546105A (en) | 2017-03-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106546105B (en) | The method for monitoring calcining carbon products temperature in roaster | |
| RU2573844C2 (en) | Automated system for controlling process of roasting iron-ore green pellets on moving grate | |
| CN102205651B (en) | A kind of method of sintering polytetrafluoroethylene | |
| CN109186273B (en) | A kind of limekiln hybrid heating system and its control method | |
| JP2010024477A (en) | Method for producing iron ore pellet | |
| CN107238289B (en) | A kind of roaster roasting control method | |
| CN103105065B (en) | Firing end point control method and firing end point control system | |
| CN102621183A (en) | Judgment method for degree of maturity of coke | |
| WO2007085317A1 (en) | A process and an apparatus for optimised management of a kiln for ceramic tiles | |
| CN102344133A (en) | Method for preparing fine particles high-density graphite product and open type circular calcinator | |
| CN107515637A (en) | A kind of glass plate steel process course control method for use | |
| CN110631370A (en) | A pot furnace for needle coke calcination and its furnace temperature control method | |
| CN203432299U (en) | Tunnel kiln for ceramic product | |
| CN1609741A (en) | Decoupling control method of multi-point temperature in tunnel furnace | |
| CN105067478A (en) | Method and device for detecting powder rate of dry pellets | |
| CN203881107U (en) | Quartz stone calcining furnace | |
| CN105906726A (en) | Manufacturing method for producing low-moisture starch through microwave method | |
| CN206618257U (en) | A kind of novel rotary kiln of distributed heating | |
| CN104729741A (en) | Temperature measuring device for automatic sintering control | |
| US20220381512A1 (en) | Furnace and method for operating a furnace | |
| CN201493466U (en) | Automatic heating temperature-controlling system for casting mould with centrifugal hot mould method | |
| CN206974215U (en) | A kind of online linear scale control combustion system | |
| CN110377938A (en) | A kind of coke oven vertical flame path temperature field analysis method | |
| CN104789441A (en) | Novel fuel gas baking oven for vinegar brewing, fire-curing and fermenting and vinegar brewing, fire-curing and fermenting method thereof | |
| JP7044341B2 (en) | Tencha furnace and its temperature control method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |