CN108118131B - A kind of method that high temperature quickly removes heat treatment furnace bottom roller dross - Google Patents
A kind of method that high temperature quickly removes heat treatment furnace bottom roller dross Download PDFInfo
- Publication number
- CN108118131B CN108118131B CN201711206638.0A CN201711206638A CN108118131B CN 108118131 B CN108118131 B CN 108118131B CN 201711206638 A CN201711206638 A CN 201711206638A CN 108118131 B CN108118131 B CN 108118131B
- Authority
- CN
- China
- Prior art keywords
- furnace
- steel plate
- heat
- treatment furnace
- roller
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0006—Details, accessories not peculiar to any of the following furnaces
- C21D9/0018—Details, accessories not peculiar to any of the following furnaces for charging, discharging or manipulation of charge
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0006—Details, accessories not peculiar to any of the following furnaces
- C21D9/0012—Rolls; Roll arrangements
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0056—Furnaces through which the charge is moved in a horizontal straight path
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0081—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for slabs; for billets
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
Abstract
The present invention provides a kind of method that high temperature quickly removes heat treatment furnace bottom roller dross, the present invention utilizes reasonably time furnace system, heating and cooling are not needed in process of production, by time furnace steel plate in the friction between movement and hearth roll and time furnace steel plate repeatedly in furnace, and furnace bottom roller surface is made to generate temperature drop, it is different using dross and the hearth roll coefficient of expansion, can make part dross fall off can, quickly remove furnace hearth roller salamander.Influence and cost waste caused by effectively reducing because of processing dross to production efficiency.It is compared with the traditional method, the present invention has short processing time, easy to operate, the features such as not needing extras.Production efficiency is improved, energy waste is reduced, notice effectively increases plate surface quality.
Description
Technical field
The present invention relates to Wide and Thick Slab heat-treatment furnace technical fields, quickly remove heat-treatment furnace more particularly to a kind of high temperature
The method of bottom roller dross.
Background technique
Normalizing, quenching and tempering heat treatment of the roller hearth heat-treated furnace for steel plate, steel pipe, fashioned iron and wire rod.Roller-bottom type
Heat-treatment furnace thermal treatment quality is good, yield is high, mechanization and high degree of automation, in heat treatment using increasing.
Domestic major steel mill occurs to lead to lower surface of steel plate impression because of heat treatment furnace bottom roller dross in actual production
The problem of.It has been investigated that the reason of leading to roller hearth heat-treated furnace furnace roller dross mainly have it is following: (1) steel plate following table
Face ball blast is not thorough, and the removal not yet in effect of the iron scale in the operation of rolling leads to iron scale dross in furnace.(2) after ball blast
Pellet and metal dust are attached to steel plate bottom surface, bring into furnace, cause to aoxidize dross.(3) fire door firedoor frame leak, vapor
Into in furnace, steel plate is caused to aoxidize dross.(4) heat treatment in-furnace temperature is excessively high, and time inside furnace is too long under the steel plate condition of high temperature.
To eliminate influence of the furnace hearth roller salamander to lower surface of steel plate, current each steel mill is mostly used greatly into the side of furnace manual cleaning
Method.But the method processing time is long, and operation danger coefficient is big, and great amount of cost is caused to waste, and affects the production efficiency of steel mill
And cost control.Heat treatment furnace bottom roller dross problem has been the pass for restricting domestic major steel mill's plate yield and quality and being promoted
One of key problem.
Currently, the solution for mainly having following patent application to be related to non-oxidation heat processing furnace furnace hearth roller salamander in the prior art is arranged
It applies.CN104896963 B discloses a kind of method for removing heat treatment furnace bottom roller dross, and this method is to utilize normalizing and tempering
Two state of temperatures, the lower surface by special processing are phase mutual friction of time furnace steel plate with hearth roll of herringbone, hit,
Remove the dross on hearth roll.This method needs the burner with stand plate of special processing, at high cost, and needs burner with stand 8 hours or so, consumption
Duration influences production efficiency big.CN102914174A discloses a kind of processing method for preventing heat treatment furnace bottom roller dross,
Mainly under 800 DEG C of high temperature, front and back oven door opening is moved using think gauge burner with stand plate in furnace, repeatedly by furnace bottom for this method
Roller dross rolls flakiness and is fitted on furnace roller, and the method is continuously increased with iron scale, and it is more and more tighter to will lead to dross
Weight, until failure.CN101968320A discloses a kind of method for removing heat treatment furnace bottom roller dross, and this method is at 500 DEG C
At a temperature of, dross is removed using the friction of burner with stand plate and hearth roll, but this method is complicated for operation, and the auxiliary such as hoist engine is needed to set
It is standby, higher cost.
Therefore, it needs to explore a kind of method for fast and efficiently solving the problems, such as furnace hearth roller salamander.
Summary of the invention
In view of the deficiencies of the prior art, the purpose of the present invention is to provide under a kind of high temperature working of a furnace, quick, inexpensive is clear
Except the method for heat treatment furnace bottom roller dross.Under the operating condition of not blowing out, the furnace of additional equipment and special processing is not needed
With steel plate, furnace hearth roller salamander is removed in a short time, improves the lower surface quality of steel plate.
To achieve the goals above, the invention provides the following technical scheme:
A kind of method that high temperature quickly removes heat treatment furnace bottom roller dross, the high temperature quickly remove bottom of heat treatment furnace
The method of roller dross the following steps are included:
1) more times furnace steel plates are rolled, described in more furnaces are placed in the outlet port of heat-treatment furnace with steel plate and are entered
Mouth position is spare；
2) furnace temperature of the heat-treatment furnace is set as under automatic control state 910 DEG C -930 DEG C, reaches this to furnace temperature
After the temperature of setting, the exit of the heat-treatment furnace and the fire door of entrance are opened；
3) heat-treatment furnace is exported into roller-way and furnace rolls road is set as manually controlling state；Rotation outlet roller-way manually
With furnace rolls road, make 1 described in time furnace rapidly entered in furnace with steel plate from the outlet port of heat-treatment furnace；With most fast roller table speed
Furnace described in entering in furnace transports to the middle position of heat-treatment furnace with steel plate, then will described furnace with most fast roller table speed
The outlet port of heat-treatment furnace is withdrawn into from the middle position of heat-treatment furnace with steel plate；
4) repetitive operation step 3) does described furnace back and forth in the middle position of heat-treatment furnace to outlet port with steel plate
Movement；Described furnace is rolled in the process of running with steel plate, rub heat-treatment furnace furnace hearth roller salamander, and furnace bottom dross part can be made to fall
It falls；
5) after reciprocating motion in repetitive operation step 3) is multiple, by described time furnace steel plate from the outlet position of heat-treatment furnace
It sets and transports；
And 5) 6) repetitive operation step 3), 4) is distinguished using 9-11 branch described furnace steel plate；
7) prepare described time furnace steel plate of 5-8 branch again, and from the successively quick shove charge manually of the entry position of heat-treatment furnace；So
The outlet roller-way of heat-treatment furnace and furnace rolls road are manually controlled into rotation afterwards, pass through rubbing between described time furnace steel plate and roller-way
Power is wiped, the remaining dross of furnace bottom is made to fall off；
8) all furnaces in heat-treatment furnace are transported into heat-treatment furnace with steel plate, closes fire door, and will outlet roller-way and furnace
Interior roller-way is switched to automatic control state.
In the method that high temperature as described above quickly removes heat treatment furnace bottom roller dross, it is preferable that in step 1), described time
Furnace is 60mm × 3200mm × 12000mm common carbon steel board with steel plate.
In the method that high temperature as described above quickly removes heat treatment furnace bottom roller dross, it is preferable that, will be described in step 2)
The furnace temperature of heat-treatment furnace is set as 930 DEG C under automatic control state.
In the method that high temperature as described above quickly removes heat treatment furnace bottom roller dross, it is preferable that in step 5), described time
Steel billet temperature when furnace is come out of the stove with steel plate is no more than 200 DEG C.
In the method that high temperature as described above quickly removes heat treatment furnace bottom roller dross, it is preferable that manually controlling state
Under, the most fast roller table speed is 18-25m/min；Preferably, the most fast roller table speed is 20m/min.
In the method that high temperature as described above quickly removes heat treatment furnace bottom roller dross, it is preferable that in step 5), repeat to grasp
After making reciprocating motion 5-8 times in step 3), described furnace is transported with steel plate from the outlet port of heat-treatment furnace；Preferably,
After reciprocating motion 5-6 times in repetitive operation step 3), described furnace is transported with steel plate from the outlet port of heat-treatment furnace.
In the method that high temperature as described above quickly removes heat treatment furnace bottom roller dross, it is preferable that in step 6), using 10
And 5) Zhi Suoshu time furnaces steel plate distinguishes repetitive operation step 3), 4).
In the method that high temperature as described above quickly removes heat treatment furnace bottom roller dross, it is preferable that in step 7), prepare 5-
Time furnace steel plate described in 8, and from the successively quick shove charge manually of the entry position of heat-treatment furnace, specifically: with most fast roller-way speed
Degree makes first Zhi Suoshu furnaces with steel plate by transporting outside furnace in furnace and from outlet port, until the head of head Zhi Suoshu times furnace steel plates
It supports on the stop device of the outlet roller-way of heat-treatment furnace in portion；Furnace steel plate successively quick shove charge will be plowed described in residue simultaneously,
And by the head of latter Zhi Suoshu time furnace steel plates support upper one described in time furnace steel plate tail portion.
In the method that high temperature as described above quickly removes heat treatment furnace bottom roller dross, it is preferable that in step 7), prepare 7-
Time furnace steel plate described in 8, and from the successively quick shove charge manually of the entry position of heat-treatment furnace.
In the method that high temperature as described above quickly removes heat treatment furnace bottom roller dross, it is preferable that in step 7), ensuring
The head of first Zhi Suoshu time furnace steel plates is supported on the stop device of the outlet roller-way of heat-treatment furnace, and by prepared time of institute
Furnace steel plate remain stationary state 10-15 minutes behind the entry position of heat-treatment furnace successively manual quickly shove charge；It then will be hot
The outlet roller-way and furnace rolls road for the treatment of furnace manually control rotation, by plowing the frictional force between furnace steel plate and roller-way, make furnace
All drosses in bottom fall off.
Analysis is main real it is found that the method that a kind of high temperature disclosed by the invention quickly removes heat treatment furnace bottom roller dross
Show following technical effect:
1, the present invention does not need heating and cooling using reasonably time furnace system in process of production, is existed by time furnace steel plate
The friction between movement and hearth roll and time furnace steel plate repeatedly in furnace, and furnace bottom roller surface is made to generate temperature drop, utilize knot
Tumor and the hearth roll coefficient of expansion are different, can make part dross fall off can, quickly remove furnace hearth roller salamander.It effectively reduces because of processing
Influence and cost waste caused by dross to production efficiency.
2, it is compared with the traditional method, the present invention has short processing time, easy to operate, the features such as not needing extras.
Production efficiency is improved, energy waste is reduced, notice effectively increases plate surface quality.
Specific embodiment
Below in conjunction with embodiment, the present invention will be described in detail.The mode of the explanation of each example through the invention provide and
The unrestricted present invention.In fact, those skilled in the art will be clear that, the case where not departing from the scope or spirit of the invention
Under, it can modify in the present invention and modification.For example, being illustrated or described as the feature of a part of one embodiment can be used for
Another embodiment, to generate another embodiment.Thus, it may be desirable to the present invention include be included into appended claims and
Such modifications and variations in the range of its equivalent.
A kind of method that high temperature quickly removes heat treatment furnace bottom roller dross, high temperature quickly remove heat treatment furnace bottom roller knot
The method of tumor the following steps are included:
1) more times furnace steel plates are rolled, more furnaces are placed in the outlet port and entrance position of heat-treatment furnace with steel plate
It purchases use；
2) under hardening heat, the furnace temperature of heat-treatment furnace is set as under automatic control state 910 DEG C -930 DEG C (such as
915℃,920℃,925℃,928℃)；After furnace temperature reaches the temperature of the setting, exit and the import of heat-treatment furnace are opened
The fire door at place；
3) heat-treatment furnace is exported into roller-way and furnace rolls road is set as manually controlling state；Rotation outlet roller-way and furnace manually
Interior roller-way rapidly enters 1 furnace in furnace from the outlet port of heat-treatment furnace with steel plate；It will be entered to most fast roller table speed
Furnace in furnace transports to the middle position of heat-treatment furnace with steel plate, then will plow furnace steel plate from heat-treatment furnace with most fast roller table speed
Middle position be withdrawn into the outlet port of heat-treatment furnace；
4) repetitive operation step 3) makes a furnace do reciprocal fortune in the middle position of heat-treatment furnace to outlet port with steel plate
It is dynamic；Time furnace is rolled in the process of running with steel plate, rub heat-treatment furnace furnace hearth roller salamander, and furnace bottom dross part can be made to fall；
5) after reciprocating motion in repetitive operation step 3) is multiple, time furnace steel plate is transported from the outlet port of heat-treatment furnace
Out；
6) repetitive operation step 3), 4 are distinguished using 9-11 branch (such as 9,10,11) furnace steel plate) and 5)；It is logical
Steel plate time furnace is subcooled, furnace bottom roller surface is made to generate temperature drop, it is different with the hearth roll coefficient of expansion using dross, furnace bottom part can be made to tie
Tumor falls off；
7) prepare 5-8 branch (such as 6,7,8) time furnace steel plate again, and from the entry position of heat-treatment furnace successively hand
Move quick shove charge；Then the outlet roller-way of heat-treatment furnace and furnace rolls road are manually controlled into rotation, passes through time furnace steel plate and roller
Frictional force between road makes the remaining dross of furnace bottom fall off；
8) all furnaces in heat-treatment furnace are transported into heat-treatment furnace with steel plate, closes fire door, and will outlet roller-way and furnace
Interior roller-way is switched to automatic control state.
In a specific embodiment of the present invention, the present invention is under the operating condition of not blowing out, does not need additional equipment and special
Time furnace of processing is removed furnace hearth roller salamander, is improved the lower surface of steel plate in a short time with steel plate (using general steel plate)
Quality.Preferably, furnace is plowed in step 1) with steel plate is 60mm × 3200mm × 12000mm common carbon steel board.
Plowing furnace to enter stokehold with steel plate is room temperature, is then sent into the furnace of the room temperature in the heat-treatment furnace of high temperature with steel plate,
Fricting movement back and forth needs that time furnace steel plate is pulled out heat-treatment furnace when furnace increases certain numerical value with steel billet temperature, no
Then the furnace of persistently overheating to high-temperature is rubbed back and forth with steel plate removes the effect variation of roller bear building-up tumor, and the present invention passes through more
Otherwise secondary test show that steel billet temperature when furnace is come out of the stove with steel plate in step 5) must be strictly controlled will reach no more than 200 DEG C
Less than except tumor effect.
In the present invention, the furnace temperature of heat-treatment furnace is first set as to 910 DEG C -930 DEG C (such as 915 under automatic control state
DEG C, 920 DEG C, 925 DEG C, 928 DEG C), after furnace temperature reaches the temperature of the setting, open exit and the entrance of heat-treatment furnace
Fire door；Then furnace is transported into furnace with steel plate again.Set temperature of the present invention is 910 DEG C -930 DEG C, at this temperature, on the one hand
It is that furnace hearth roller salamander is in hot environment, furnace is maintained at 200 DEG C hereinafter, steel billet temperature is lower with steel plate, and furnace hearth roller salamander holds
Easily flattened by the low steel plate of temperature；It on the other hand is that furnace hearth roller salamander is in high temperature, time furnace steel billet temperature is low, furnace hearth roller salamander
Temperature reduces after contact time furnace steel plate, and generation is expanded with heat and contract with cold, and is easy to fall off from hearth roll.It is further preferred that step 2)
The middle furnace temperature by heat-treatment furnace is set as 930 DEG C under automatic control state.
Under the state that manually controls, most fast roller table speed is 18-25m/min (such as 19m/min, 20m/min, 21m/
min,22m/min,23m/min,24m/min)；Preferably, most fast roller table speed is 20m/min, under this speed, time furnace steel plate
It most could quickly reach among come out of the stove end or heat-treatment furnace, and be able to maintain lower temperature.
In step 5), after reciprocating motion 5-8 times (such as 6 times, 7 times, 8 times) in repetitive operation step 3), furnace is used
Steel plate is transported from the outlet port of heat-treatment furnace；Preferably, after reciprocating motion 5-6 times in repetitive operation step 3), by furnace
It is transported with steel plate from the outlet port of heat-treatment furnace.
In a specific embodiment of the present invention, it is preferable that distinguish repetitive operation using 10 times furnace steel plates in step 6)
And 5) step 3), 4).This is because this quantity is the test result repeatedly obtained according to live practical operation, this 10 times furnace is used
After steel plate is by the above operation, it is ensured that be up to state standards requirement with a thickness of lower surface quality after 60mm and following steel plate quenching.
In step 7), prepare 5-8 branch time furnace steel plate, and from the successively quick shove charge manually of the entry position of heat-treatment furnace,
Specifically: make first branch time furnace with steel plate by transporting outside furnace in furnace and from outlet port with most fast roller table speed, until first branch time
It supports on the stop device of the outlet roller-way of heat-treatment furnace on the head of furnace steel plate；It is simultaneously that residue time furnace is successively fast with steel plate
Quick-mounting furnace, and upper one tail portion for plowing furnace steel plate is supported on the head of latter branch time furnace steel plate.
In the present invention, prepare 5-8 branch time furnace steel plate in step 7), and successively manual from the entry position of heat-treatment furnace
Then the outlet roller-way of heat-treatment furnace and furnace rolls road are manually controlled rotation by quick shove charge, pass through time furnace steel plate and roller-way
Between frictional force, so that all drosses in furnace bottom is fallen off.This is because this quantity (5-8 branch) is more according to live practical operation
The secondary test result obtained, 5-8 branch steel plate herein plow after the completion of furnace, it is ensured that following table after thickness 80-120mm steel plate quenching
Face quality is up to state standards requirement.Further preferably, prepare 7-8 branch time furnace steel plate in step 7), and from heat-treatment furnace
Entry position successively quick shove charge manually.
In step 7), ensuring that the head of first branch time furnace steel plate supports the stop device in the outlet roller-way of heat-treatment furnace
On, and by prepared time furnace steel plate successively manually quickly after shove charge, remain stationary shape from the entry position of heat-treatment furnace
State 10-15min (such as 11min, 12min, 13min, 14min)；Then by the outlet roller-way of heat-treatment furnace and furnace rolls road hand
Dynamic control rotation makes all drosses in furnace bottom fall off by plowing the frictional force between furnace steel plate and roller-way.
By cold steel plate time furnace in the present invention, so that furnace bottom roller surface is generated temperature drop, utilize dross and the hearth roll coefficient of expansion
Difference can make furnace bottom part dross fall off.This is because the dross on hearth roll and hearth roll is in high temperature, time furnace steel plate is kept
200 DEG C of lower temperatures below；After dross on hearth roll and hearth roll is contacted with cold steel plate, temperature drop can be generated；Due to furnace bottom
The material of roller is different with the material of dross, therefore the coefficient of expansion to expand with heat and contract with cold is different, dross can be made to be easier to from hearth roll
It falls off.
A kind of high temperature provided by the invention, the method for quickly removing heat treatment furnace bottom roller dross.The present invention is in quenching temperature
Do not needed under degree cooling or blowing out, can quickly, be effectively reduced because of furnace hearth roller salamander caused by lower surface of steel plate impression, hence it is evident that improve
Plate surface quality.The present invention at high temperature contacts cold steel plate and hearth roll, makes the reduction of furnace bottom roll temperature, using hearth roll and
Dross material difference promotes dross to fall off.It is compared with the traditional method, has and do not need to cool down, short processing time, to the production time
It influences small；The steel plate of special processing is not needed, it is at low cost, and the features such as small, is damaged to hearth roll.Save a large amount of power consumptions, coal consumption
Cost, it is easy to operate, while energy consumption effectively improves lower surface of steel plate quality.
Embodiment 1
A kind of method that high temperature quickly removes heat treatment furnace bottom roller dross, high temperature quickly remove heat treatment furnace bottom roller knot
The method of tumor the following steps are included:
1) more time furnaces are rolled with steel plate (furnace is 60mm × 3200mm × 12000mm common carbon steel board with steel plate), it will be more
Branch time furnace with steel plate be placed in heat-treatment furnace outlet port and entry position it is spare；
2) under hardening heat, the furnace temperature of heat-treatment furnace is set as 930 DEG C under automatic control state, is reached to furnace temperature
After the temperature of the setting, the exit of heat-treatment furnace and the fire door of entrance are opened；
3) heat-treatment furnace is exported into roller-way and furnace rolls road is set as manually controlling state；Rotation outlet roller-way and furnace manually
Interior roller-way rapidly enters 1 furnace in furnace from the outlet port of heat-treatment furnace with steel plate；With most fast roller table speed 20m/min
The furnace entered in furnace is transported to the middle position of heat-treatment furnace with steel plate, then furnace will be plowed with most fast roller table speed 20m/min
The outlet port of heat-treatment furnace is withdrawn into from the middle position of heat-treatment furnace with steel plate；
4) repetitive operation step 3) makes a furnace do reciprocal fortune in the middle position of heat-treatment furnace to outlet port with steel plate
It is dynamic；Time furnace is rolled in the process of running with steel plate, rub heat-treatment furnace furnace hearth roller salamander, and furnace bottom dross part can be made to fall；
5) after the reciprocating motion in repetitive operation step 3) 6 times, time furnace steel plate is transported from the outlet port of heat-treatment furnace
Out, it plows steel billet temperature when furnace is come out of the stove with steel plate and is no more than 200 DEG C；
And 5) 6) repetitive operation step 3), 4) is distinguished using 10 time furnaces steel plate；By cold steel plate time furnace, make hearth roll
Surface generates temperature drop, different with the hearth roll coefficient of expansion using dross, and furnace bottom part dross can be made to fall off；
7) prepare 7 time furnace steel plates again, and from the successively quick shove charge manually of the entry position of heat-treatment furnace；Specifically:
Make first branch time furnace with steel plate by transporting outside furnace in furnace and from outlet port with most fast roller table speed, until first branch time furnace steel plate
Head support heat-treatment furnace outlet roller-way stop device on；Residue is plowed into furnace steel plate successively quick shove charge simultaneously,
And the head of latter branch time furnace steel plate is supported to the tail portion of upper one time furnace steel plate；
Ensuring that the head of first branch time furnace steel plate supports on the stop device of the outlet roller-way of heat-treatment furnace, and by institute
Prepared time furnace steel plate remain stationary state 10-15 points behind the entry position of heat-treatment furnace successively manual quickly shove charge
Clock；Then the outlet roller-way of heat-treatment furnace and furnace rolls road are manually controlled into rotation, by plowing between furnace steel plate and roller-way
Frictional force makes all drosses in furnace bottom fall off.
8) all furnaces in heat-treatment furnace are transported into heat-treatment furnace with steel plate, closes fire door, and will outlet roller-way and furnace
Interior roller-way is switched to automatic control state.
The method whole process that high temperature of the invention quickly removes heat treatment furnace bottom roller dross needs 2 hours.And show
Have in processing method, if carrying out blowing out processing, entirely except tumor process needs 3 days or more.If pressing existing time of part steel mill
Furnace method, whole process needs 10 are more than hour.A furnace is carried out in the present inventive method, it is ensured that thickness is up to 80-
Lower surface quality is up to state standards requirement after 120mm steel plate quenching.The present invention is due to greatly shortening time furnace time, every time
It reduces power consumption, gas consumption, nitrogen and consumes about 15000 yuan；And time furnace time reduction 8 hours or more every time, it greatly improves
The production efficiency of steel mill, reduces downtime.
The present invention may be reused after ball blast except the furnace that plows used during tumor with steel plate, to save money
Source, while of the present invention furnace is general steel plate with steel plate, is not needed in the steel plate for carrying out preparation special requirement shape,
Production cost greatly reduces.The present invention does not need heating and cooling using reasonably time furnace system in process of production, by plowing
Furnace steel plate is in the friction between movement and hearth roll and time furnace steel plate repeatedly in furnace, and furnace bottom roller surface is made to generate temperature
Drop, it is different using dross and the hearth roll coefficient of expansion, can make part dross fall off can, quickly remove furnace hearth roller salamander.Effectively drop
Influence and cost waste caused by the low dross because of processing to production efficiency.It is compared with the traditional method, the present invention has processing
The features such as time is short, easy to operate, does not need extras.Production efficiency is improved, energy waste is reduced, notice effectively mentions
High plate surface quality.
The above description is only a preferred embodiment of the present invention, is not intended to restrict the invention, for those skilled in the art
For member, the invention may be variously modified and varied.All within the spirits and principles of the present invention, it is made it is any modification,
Equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of method that high temperature quickly removes heat treatment furnace bottom roller dross, which is characterized in that the high temperature quickly removes heat
The method for the treatment of furnace furnace hearth roller salamander the following steps are included:
1) more times furnace steel plates are rolled, described in more furnaces are placed in the outlet port and entrance position of heat-treatment furnace with steel plate
It purchases use, described furnace is 60mm × 3200mm × 12000mm common carbon steel board with steel plate；
2) furnace temperature of the heat-treatment furnace is set as under automatic control state 915 DEG C -930 DEG C, reaches the setting to furnace temperature
Temperature after, open the exit of the heat-treatment furnace and the fire door of entrance；
3) heat-treatment furnace is exported into roller-way and furnace rolls road is set as manually controlling state；Rotation outlet roller-way and furnace manually
Interior roller-way, make 1 described in time furnace rapidly entered in furnace with steel plate from the outlet port of heat-treatment furnace；It will be into most fast roller table speed
Time furnace described in entering to furnace transports to the middle position of heat-treatment furnace with steel plate, then with most fast roller table speed by described time furnace steel
Plate is withdrawn into the outlet port of heat-treatment furnace from the middle position of heat-treatment furnace；
4) repetitive operation step 3) makes described furnace do reciprocal fortune in the middle position of heat-treatment furnace to outlet port with steel plate
It is dynamic；Described furnace is rolled in the process of running with steel plate, rub heat-treatment furnace furnace hearth roller salamander, and furnace bottom dross part can be made to fall
It falls；
5) after reciprocating motion in repetitive operation step 3) is multiple, described time furnace steel plate is transported from the outlet port of heat-treatment furnace
Out, steel billet temperature when described furnace is come out of the stove with steel plate is no more than 200 DEG C；
And 5) 6) repetitive operation step 3), 4) is distinguished using 9-11 branch described furnace steel plate；
7) prepare described time furnace steel plate of 5-8 branch again, and from the successively quick shove charge manually of the entry position of heat-treatment furnace；Then will
The outlet roller-way and furnace rolls road of heat-treatment furnace manually control rotation, pass through the friction between described time furnace steel plate and roller-way
Power makes the remaining dross of furnace bottom fall off；
8) all furnaces in heat-treatment furnace are transported into heat-treatment furnace with steel plate, closes fire door, and will outlet roller-way and furnace rolls
Road is switched to automatic control state.
2. the method that high temperature as described in claim 1 quickly removes heat treatment furnace bottom roller dross, which is characterized in that step
It is rapid 2) in, the furnace temperature of the heat-treatment furnace is set as 930 DEG C under automatic control state.
3. the method that the high temperature as described in any in claim 1-2 quickly removes heat treatment furnace bottom roller dross, feature exist
In under the state that manually controls, the most fast roller table speed is 18-25m/min.
4. the method that high temperature as described in claim 1 quickly removes heat treatment furnace bottom roller dross, which is characterized in that step
5) in, after reciprocating motion 5-8 times in repetitive operation step 3), described time furnace steel plate is transported from the outlet port of heat-treatment furnace
Out.
5. the method that high temperature as described in claim 1 quickly removes heat treatment furnace bottom roller dross, which is characterized in that step
And 5) 6) in, repetitive operation step 3), 4) is distinguished using the steel plate of time furnaces described in 10.
6. the method that high temperature as described in claim 1 quickly removes heat treatment furnace bottom roller dross, which is characterized in that step
7) in, prepare described time furnace steel plate of 5-8 branch, and from the successively quick shove charge manually of the entry position of heat-treatment furnace, specifically: with
Most fast roller table speed makes first Zhi Suoshu furnaces with steel plate by transporting outside furnace in furnace and from outlet port, until head Zhi Suoshu furnaces
It is supported on the stop device of the outlet roller-way of heat-treatment furnace with the head of steel plate；Simultaneously will time furnace described in residue with steel plate successively
Quick shove charge, and by the head of latter Zhi Suoshu time furnace steel plates support upper one described in time furnace steel plate tail portion.
7. the method that high temperature as claimed in claim 6 quickly removes heat treatment furnace bottom roller dross, which is characterized in that step
7) in, prepare described time furnace steel plate of 7-8 branch, and from the successively quick shove charge manually of the entry position of heat-treatment furnace.
8. the method that high temperature as claimed in claim 6 quickly removes heat treatment furnace bottom roller dross, which is characterized in that step
7) in, ensuring that the head of first Zhi Suoshu time furnace steel plates supports on the stop device of the outlet roller-way of heat-treatment furnace, and will
Prepared time furnace steel plate successively manually quickly after shove charge, remain stationary state 10-15 from the entry position of heat-treatment furnace
Minute；Then the outlet roller-way of heat-treatment furnace and furnace rolls road are manually controlled into rotation, by plowing between furnace steel plate and roller-way
Frictional force, so that all drosses in furnace bottom is fallen off.
9. the method that high temperature as described in claim 3 quickly removes heat treatment furnace bottom roller dross, which is characterized in that
It manually controls under state, the most fast roller table speed is 20m/min.
10. the method that high temperature as claimed in claim 4 quickly removes heat treatment furnace bottom roller dross, which is characterized in that step
5) in, after reciprocating motion 5-6 times in repetitive operation step 3), described time furnace steel plate is transported from the outlet port of heat-treatment furnace
Out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711206638.0A CN108118131B (en) | 2017-11-27 | 2017-11-27 | A kind of method that high temperature quickly removes heat treatment furnace bottom roller dross |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711206638.0A CN108118131B (en) | 2017-11-27 | 2017-11-27 | A kind of method that high temperature quickly removes heat treatment furnace bottom roller dross |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108118131A CN108118131A (en) | 2018-06-05 |
| CN108118131B true CN108118131B (en) | 2019-05-14 |
Family
ID=62227988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711206638.0A Active CN108118131B (en) | 2017-11-27 | 2017-11-27 | A kind of method that high temperature quickly removes heat treatment furnace bottom roller dross |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108118131B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109489430A (en) * | 2018-09-05 | 2019-03-19 | 宝钢特钢韶关有限公司 | A method of removal heating furnace water beam pad block dross |
| CN113267058A (en) * | 2021-05-20 | 2021-08-17 | 中天钢铁集团有限公司 | Method for removing nodules on heat-resistant sliding block of walking beam of heat storage type heating furnace |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102728585A (en) * | 2012-06-29 | 2012-10-17 | 秦皇岛首秦金属材料有限公司 | Furnace cleaning method for controlling furnace bottom roller indentation of thermal treatment furnace |
| CN102914174A (en) * | 2012-10-16 | 2013-02-06 | 南京钢铁股份有限公司 | Furnace dredging method for avoiding accretion on furnace bottom roller of non-oxidation heat treatment furnace |
| CN104775017A (en) * | 2013-12-27 | 2015-07-15 | 新余钢铁集团有限公司 | Method for eliminating roll marks of steel plate by controlling furnace roller nodules by making thick plates pass through furnace |
| CN104896963B (en) * | 2015-07-01 | 2016-09-28 | 山东钢铁股份有限公司 | A kind of method of online removing heat treatment furnace bottom roller dross |
-
2017
- 2017-11-27 CN CN201711206638.0A patent/CN108118131B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN108118131A (en) | 2018-06-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108118131B (en) | A kind of method that high temperature quickly removes heat treatment furnace bottom roller dross | |
| CN105621871A (en) | Glass toughening system and preparation method of toughened glass | |
| CN207498416U (en) | A kind of aluminium profile quenching device | |
| BRPI0708293A2 (en) | methods and devices for heat treatment of metals | |
| CN101979190A (en) | Multifunctional furnace for continuously degreasing, sintering, quenching and tempering powder metallurgical products | |
| CN105170665A (en) | Method for removing iron oxide scale from surface of strip steel efficiently | |
| CN103710518B (en) | A kind of method eliminating steel plate roll marks by controlling furnace roller dross | |
| CN101892373A (en) | Heat treatment technology for low-temperature high impact toughness medium-thickness steel plate | |
| CN202401110U (en) | Multifunctional continuous thermal treatment furnace | |
| CN102876875A (en) | Method for performing full annealing heat treatment for alloy steel pipe | |
| CN105018686B (en) | The quick annealing method and equipment of generator claw pole | |
| CN103836899B (en) | Cluster batch (-type) refractory brick dry kiln UTILIZATION OF VESIDUAL HEAT IN technique | |
| CN103512375B (en) | Device and method for recycling flue gas waste heat of high-temperature furnace by medium-low temperature furnace | |
| CN101086056A (en) | Quick annealing method for titanium seamless pipe | |
| CN205528924U (en) | Double -deck U type annealing stove of periodic production marching type heat transfer | |
| CN203534226U (en) | Device for recycling flue gas waste heat of high-temperature furnace by medium-low temperature furnace | |
| CN107574289B (en) | A kind of working method of workpiece annealing device | |
| CN204265801U (en) | A kind of net belt type quenching of steel stove | |
| CN221403099U (en) | Hot-blast furnace flue gas circulation device capable of rapidly cooling | |
| CN201903268U (en) | Continuous degreasing, sintering, quenching and tempering multifunction furnace of powder metallurgy products | |
| CN206843532U (en) | A kind of energy-saving gas formula car type furnace | |
| CN101435018A (en) | Hot dip galvanizing annealing process and high temperature annealing furnace | |
| JPH055124A (en) | Low dew point atmospheric heat treatment furnace | |
| CN107598063A (en) | A kind of efficiently side top-jet-type burning Gas Forging Heating Furnace | |
| SU62698A1 (en) | The method of drying the refractory masonry blast furnaces |
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 | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Liu Jungang Inventor after: Ren Xujun Inventor after: Gao Haijun Inventor after: Li Tao Inventor after: Yu Quancheng Inventor after: Zhang Changhong Inventor after: Zhou Ping Inventor after: Li Chang Inventor after: Wei Junguang Inventor after: Feng Wenyi Inventor after: Xing Changhuai Inventor after: Ma Heng Inventor after: Li Chuanpeng Inventor after: Li Qiang Inventor before: Liu Jungang Inventor before: Ren Xujun Inventor before: Gao Haijun Inventor before: Zhou Ping Inventor before: Li Chang Inventor before: Wei Junguang Inventor before: Feng Wenyi Inventor before: Xing Changhuai Inventor before: Ma Heng Inventor before: Li Chuanpeng Inventor before: Li Qiang |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210623 Address after: 271104 Shuangquan Road, Gangcheng District, Jinan City, Shandong Province Patentee after: LAIGANG GROUP YINSHAN SHAPED STEEL Co.,Ltd. Address before: 250101 No. 21 industrial North Road, Licheng District, Shandong, Ji'nan Patentee before: SHANDONG IRON AND STEEL Co.,Ltd. |