CN106363774A - Fire-resistant treatment method of furnace roller - Google Patents
Fire-resistant treatment method of furnace roller Download PDFInfo
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- CN106363774A CN106363774A CN201610780151.2A CN201610780151A CN106363774A CN 106363774 A CN106363774 A CN 106363774A CN 201610780151 A CN201610780151 A CN 201610780151A CN 106363774 A CN106363774 A CN 106363774A
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- furnace roller
- flame retardant
- retardant coating
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- coating slurry
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/54—Producing shaped prefabricated articles from the material specially adapted for producing articles from molten material, e.g. slag refractory ceramic materials
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/66—Monolithic refractories or refractory mortars, including those whether or not containing clay
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Tunnel Furnaces (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
The invention provides a fire-resistant treatment method of a furnace roller. The fire-resistant treatment method comprises the specific steps of surface cleaning of the furnace roller, preparation of a furnace roller microetching solution, microetching of the furnace roller, oxidizing flame treatment, vacuum treatment, preparation of refractory layer slurry, pressure injection of the refractory layer slurry, and forming of a refractory layer. According to the fire-resistant treatment method, a conventional furnace roller can be directly treated and processed, the furnace roller regains fire resistance, the fire resistance is improved, and the cost of changing the furnace roller is greatly reduced; and besides, the entire method and the treatment raw materials utilized in the method are low in cost and are economic and practical.
Description
Technical field
The invention belongs to furnace roller technical field of surface is and in particular to a kind of refractory process method of furnace roller.
Background technology
Furnace roller is continuous annealing treatment production line large-bore furnace bottom roller, and its quality is impact operating rate and product surface matter
One of principal element of amount, existing furnace roller, when using, is used due to long, adding the effect of colding and heat succeed each other so as to surface
Easily produce defect, cause the decline of its fire resistance, further result in its mechanical performance significantly reduces so that product quality
Reduction, be now necessary for changing furnace roller in time, lead to the raising of production cost；And currently without directly entering to existing furnace roller
Row processes the method to strengthen or recover its fire resistance.
Therefore, developing a kind of method that can strengthen or recover furnace roller fire resistance is that those skilled in the art institute is anxious
The difficult problem that need to solve.
Content of the invention
For solving the above problems, the invention discloses a kind of refractory process method of furnace roller.
In order to achieve the above object, the following technical scheme of present invention offer:
A kind of refractory process method of furnace roller, concrete steps include:
(1) furnace roller removing surface: remove the oxide layer on pending furnace roller surface, and carry out ungrease treatment:
(2) prepare furnace roller micro-corrosion liquid: take micro-corrosion liquid raw material on demand, sequentially add each micro-corrosion liquid raw material, stir with standby；
(3) furnace roller microetch: pending furnace roller is put in micro-corrosion liquid, micro-corrosion liquid is warming up to by the speed according to not higher than 6 DEG C/h
65～75 DEG C, and it is incubated 15～22h, afterwards furnace roller is taken out, cover plastic sheeting, place 5～7 days under field conditions (factors)；
(4) oxidizing flame is processed: the furnace roller of microetch is placed on oxidizing flame, point 5～9 calcinings, calcines 15～25s every time, and
Calcining number of times is more, and each calcination time is shorter；
(5) application of vacuum: after the completion of flame to be oxidized is processed, by furnace roller placement force tank, steam device and vacuum system using gas
Enter the alternate treatment of the steamed journey of circulation of qi promoting and vacuum process, repeat 7～12 times；
(6) prepare flame retardant coating slurry: take flame retardant coating raw material on demand, and mix homogeneously；
(7) pressure injection flame retardant coating slurry: the slowly pressure injection flame retardant coating slurry in pressurized tank, keep the vacuum in pressurized tank constant；
When flame retardant coating slurry is full of pressurized tank, close vacuum system, and pressurize for flame retardant coating slurry, so that flame retardant coating slurry is tightly fitted
In furnace roller surface；When flame retardant coating slurry in pressurized tank no longer reduces, stop pressurization；
(8) fire resisting formable layer: furnace roller is taken out from pressurized tank, and is wrapped up with plastic sheeting, after placing 3～5 days in the cool,
Take out plastic sheeting, surface is carried out polishing, washes drying.
The present invention provides a kind of refractory process method of furnace roller, first pending furnace roller is cleared up, by Surface Oxygen
Change layer to remove, carry out ungrease treatment, furnace roller surface is cleaned out completely it is ensured that being smoothed out of subsequent treatment；Prepare furnace roller
Micro-corrosion liquid carries out microetch to furnace roller, and carries out oxidizing flame successively and process with application of vacuum the flame retardant coating energy so that in subsequent treatment
Enough more first-class combine with furnace roller surface；Add flame retardant coating slurry in the most backward pressurized tank, using pressure differential by flame retardant coating
Slurry is pressed to furnace roller surface, after the completion of by plastic sheeting wrap up, cooling shaping, finally polish again, wash drying, complete stove
The refractory process of roller.
Preferably, the constituent of micro-corrosion liquid raw material and mass percent shared by each composition are respectively as follows: surface activity
Agent: 2～7%, dilute sulfuric acid: 13～20%, anhydrous cupric sulfate: 11～17%, stabilizer: 2～5%, remaining is deionized water.
Preferably, the constituent of flame retardant coating raw material and mass percent shared by each composition are respectively as follows: cement: 45～
60%th, silicate fiber: 12～21%, hydrogen peroxide: 11～15%, phosphoric acid aluminium liquid: 2～5%, water: 15～28%.
Preferably, the method for the ungrease treatment in step (1) is: furnace roller is put in electrolysis supersonic cleaning machine and is taken off
Fat cleans.
Preferably, stabilizer is inorganic ammonia stabilizer.
Preferably, cement is portland cement.
Preferably, the temperature of the steamed journey of gas is 145～160 DEG C in step (5), the vacuum of vacuum process is -0.9
～-1mpa.
The present invention compared with prior art, directly can carry out processing so as to recapturing and lifting fire resisting to existing furnace roller
Performance, greatly reduces the process low raw-material cost used in the cost changing furnace roller, and whole method and method, warp
Ji is practical.
Specific embodiment
The technical scheme present invention being provided below with reference to specific embodiment is described in detail it should be understood that following concrete
Embodiment is only illustrative of the invention and is not intended to limit the scope of the invention.
Embodiment 1:
A kind of refractory process method of furnace roller, concrete steps include:
(1) furnace roller removing surface: remove the oxide layer on pending furnace roller surface, and furnace roller is put in electrolysis supersonic cleaning machine
Row cleaning by degreasing:
(2) prepare furnace roller micro-corrosion liquid: take micro-corrosion liquid raw material on demand, sequentially add each micro-corrosion liquid raw material, stir with standby；
The constituent of micro-corrosion liquid raw material and mass percent shared by each composition are respectively as follows: surfactant: 5%, dilute sulfuric acid: 16%,
Anhydrous cupric sulfate: 15%, inorganic ammonia stabilizer: 4%, remaining is deionized water；
(3) furnace roller microetch: pending furnace roller is put in micro-corrosion liquid, micro-corrosion liquid is warming up to 75 DEG C by the speed according to 4 DEG C/h, and
Furnace roller is taken out, covers plastic sheeting by insulation 22h afterwards, places 7 days under field conditions (factors)；
(4) oxidizing flame is processed: the furnace roller of microetch is placed on oxidizing flame, point 7 calcinings, calcines 20s every time；
(5) application of vacuum: after the completion of flame to be oxidized is processed, by furnace roller placement force tank, steam device and vacuum system using gas
Enter the alternate treatment of the steamed journey of circulation of qi promoting and vacuum process, be repeated 10 times；The temperature of the wherein steamed journey of gas is 160 DEG C, vacuum process
Vacuum be -1mpa；
(6) prepare flame retardant coating slurry: take flame retardant coating raw material on demand, and mix homogeneously；The constituent of flame retardant coating raw material and
Mass percent shared by each composition is respectively as follows: portland cement: 52%, silicate fiber: 15%, hydrogen peroxide: 13%, phosphoric acid aluminium liquid:
3%th, water: 17%；
(7) pressure injection flame retardant coating slurry: the slowly pressure injection flame retardant coating slurry in pressurized tank, keep the vacuum in pressurized tank constant；
When flame retardant coating slurry is full of pressurized tank, close vacuum system, and pressurize for flame retardant coating slurry, so that flame retardant coating slurry is tightly fitted
In furnace roller surface；When flame retardant coating slurry in pressurized tank no longer reduces, stop pressurization；
(8) fire resisting formable layer: furnace roller is taken out from pressurized tank, and is wrapped up with plastic sheeting, after placing 3～5 days in the cool,
Take out plastic sheeting, surface is carried out polishing, washes drying.
Embodiment 2:
A kind of refractory process method of furnace roller, concrete steps include:
(1) furnace roller removing surface: remove the oxide layer on pending furnace roller surface, and furnace roller is put in electrolysis supersonic cleaning machine
Row cleaning by degreasing:
(2) prepare furnace roller micro-corrosion liquid: take micro-corrosion liquid raw material on demand, sequentially add each micro-corrosion liquid raw material, stir with standby；
The constituent of micro-corrosion liquid raw material and mass percent shared by each composition are respectively as follows: surfactant: 2%, dilute sulfuric acid: 20%,
Anhydrous cupric sulfate: 17%, inorganic ammonia stabilizer: 5%, remaining is deionized water；
(3) furnace roller microetch: pending furnace roller is put in micro-corrosion liquid, micro-corrosion liquid is warming up to 75 DEG C by the speed according to 6 DEG C/h, and
Furnace roller is taken out, covers plastic sheeting by insulation 15h afterwards, places 5 days under field conditions (factors)；
(4) oxidizing flame is processed: the furnace roller of microetch is placed on oxidizing flame, point 5 calcinings, calcines 25s every time；
(5) application of vacuum: after the completion of flame to be oxidized is processed, by furnace roller placement force tank, steam device and vacuum system using gas
Enter the alternate treatment of the steamed journey of circulation of qi promoting and vacuum process, be repeated 7 times；The temperature of the wherein steamed journey of gas is 145 DEG C, vacuum process
Vacuum is -1mpa；
(6) prepare flame retardant coating slurry: take flame retardant coating raw material on demand, and mix homogeneously；The constituent of flame retardant coating raw material and
Mass percent shared by each composition is respectively as follows: portland cement: 45%, silicate fiber: 20%, hydrogen peroxide: 15%, phosphoric acid aluminium liquid:
2%th, water: 18%；
(7) pressure injection flame retardant coating slurry: the slowly pressure injection flame retardant coating slurry in pressurized tank, keep the vacuum in pressurized tank constant；
When flame retardant coating slurry is full of pressurized tank, close vacuum system, and pressurize for flame retardant coating slurry, so that flame retardant coating slurry is tightly fitted
In furnace roller surface；When flame retardant coating slurry in pressurized tank no longer reduces, stop pressurization；
(8) fire resisting formable layer: furnace roller is taken out from pressurized tank, and with plastic sheeting parcel, after placing 3 days in the cool, takes
Go out plastic sheeting, surface is carried out polishing, washes drying.
Embodiment 3:
A kind of refractory process method of furnace roller, concrete steps include:
(1) furnace roller removing surface: remove the oxide layer on pending furnace roller surface, and furnace roller is put in electrolysis supersonic cleaning machine
Row cleaning by degreasing:
(2) prepare furnace roller micro-corrosion liquid: take micro-corrosion liquid raw material on demand, sequentially add each micro-corrosion liquid raw material, stir with standby；
The constituent of micro-corrosion liquid raw material and mass percent shared by each composition are respectively as follows: surfactant: 7%, dilute sulfuric acid: 13%,
Anhydrous cupric sulfate: 11%, inorganic ammonia stabilizer: 2%, remaining is deionized water；
(3) furnace roller microetch: pending furnace roller is put in micro-corrosion liquid, micro-corrosion liquid is warming up to 75 DEG C by the speed according to 3 DEG C/h, and
Furnace roller is taken out, covers plastic sheeting by insulation 22h afterwards, places 7 days under field conditions (factors)；
(4) oxidizing flame is processed: the furnace roller of microetch is placed on oxidizing flame, point 9 calcinings, calcines 15s every time；
(5) application of vacuum: after the completion of flame to be oxidized is processed, by furnace roller placement force tank, steam device and vacuum system using gas
Enter the alternate treatment of the steamed journey of circulation of qi promoting and vacuum process, be repeated 12 times；The temperature of the wherein steamed journey of gas is 160 DEG C, vacuum process
Vacuum be -0.9mpa；
(6) prepare flame retardant coating slurry: take flame retardant coating raw material on demand, and mix homogeneously；The constituent of flame retardant coating raw material and
Mass percent shared by each composition is respectively as follows: portland cement: 55%, silicate fiber: 12%, hydrogen peroxide: 11%, phosphoric acid aluminium liquid:
2%th, water: 20%；
(7) pressure injection flame retardant coating slurry: the slowly pressure injection flame retardant coating slurry in pressurized tank, keep the vacuum in pressurized tank constant；
When flame retardant coating slurry is full of pressurized tank, close vacuum system, and pressurize for flame retardant coating slurry, so that flame retardant coating slurry is tightly fitted
In furnace roller surface；When flame retardant coating slurry in pressurized tank no longer reduces, stop pressurization；
(8) fire resisting formable layer: furnace roller is taken out from pressurized tank, and is wrapped up with plastic sheeting, after placing 3～5 days in the cool,
Take out plastic sheeting, surface is carried out polishing, washes drying.
The method providing according to three above embodiment respectively and composition proportion are at before, during and after same furnace roller three
Carry out refractory process, and carry out high temperature resistant fire resisting test, the fire resistance of furnace roller front end is the most outstanding, secondly, stage casing is relatively for rear end
Difference, but compared with the current furnace roller using, also it is obviously improved.
Last it should be noted that above example is only in order to illustrate technical scheme and non-limiting technical side
Case, it will be understood by those within the art that, those are modified to technical scheme or equivalent, and
Objective without departing from the technical program and scope, all should cover in the middle of scope of the presently claimed invention.
Claims (7)
1. a kind of furnace roller refractory process method it is characterised in that: concrete steps include:
(1) furnace roller removing surface: remove the oxide layer on pending furnace roller surface, and carry out ungrease treatment:
(2) prepare furnace roller micro-corrosion liquid: take micro-corrosion liquid raw material on demand, sequentially add each micro-corrosion liquid raw material, stir with standby；
(3) furnace roller microetch: pending furnace roller is put in micro-corrosion liquid, micro-corrosion liquid is warming up to by the speed according to not higher than 6 DEG C/h
65～75 DEG C, and it is incubated 15～22h, afterwards furnace roller is taken out, cover plastic sheeting, place 5～7 days under field conditions (factors)；
(4) oxidizing flame is processed: the furnace roller of microetch is placed on oxidizing flame, point 5～9 calcinings, calcines 15～25s every time, and
Calcining number of times is more, and each calcination time is shorter；
(5) application of vacuum: after the completion of flame to be oxidized is processed, by furnace roller placement force tank, steam device and vacuum system using gas
Enter the alternate treatment of the steamed journey of circulation of qi promoting and vacuum process, repeat 7～12 times；
(6) prepare flame retardant coating slurry: take flame retardant coating raw material on demand, and mix homogeneously；
(7) pressure injection flame retardant coating slurry: the slowly pressure injection flame retardant coating slurry in pressurized tank, keep the vacuum in pressurized tank constant；
When flame retardant coating slurry is full of pressurized tank, close vacuum system, and pressurize for flame retardant coating slurry, so that flame retardant coating slurry is tightly fitted
In furnace roller surface；When flame retardant coating slurry in pressurized tank no longer reduces, stop pressurization；
(8) fire resisting formable layer: furnace roller is taken out from pressurized tank, and is wrapped up with plastic sheeting, after placing 3～5 days in the cool,
Take out plastic sheeting, surface is carried out polishing, washes drying.
2. a kind of furnace roller according to claim 1 refractory process method it is characterised in that: the group of described micro-corrosion liquid raw material
Composition and mass percent shared by each composition is become to be respectively as follows: surfactant: 2～7%, dilute sulfuric acid: 13～20%, anhydrous slufuric acid
Copper: 11～17%, stabilizer: 2～5%, remaining is deionized water.
3. a kind of furnace roller according to claim 1 refractory process method it is characterised in that: the group of described flame retardant coating raw material
Composition and mass percent shared by each composition is become to be respectively as follows: cement: 45～60%, silicate fiber: 12～21%, hydrogen peroxide:
11～15%, phosphoric acid aluminium liquid: 2～5%, water: 15～28%.
4. a kind of furnace roller according to claim 1 refractory process method it is characterised in that: de- in described step (1)
The method that fat is processed is: furnace roller is put in electrolysis supersonic cleaning machine and carries out cleaning by degreasing.
5. a kind of furnace roller according to claim 2 refractory process method it is characterised in that: described stabilizer be inorganic ammonia
Stabilizer.
6. a kind of furnace roller according to claim 3 refractory process method it is characterised in that: described cement be silicate cement
Mud.
7. a kind of furnace roller according to claim 1 refractory process method it is characterised in that: in described step (5) gas steam
The temperature of process is 145～160 DEG C, and the vacuum of vacuum process is -0.9～-1mpa.
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| CN201610780151.2A CN106363774A (en) | 2016-08-30 | 2016-08-30 | Fire-resistant treatment method of furnace roller |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610780151.2A CN106363774A (en) | 2016-08-30 | 2016-08-30 | Fire-resistant treatment method of furnace roller |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1172172A (en) * | 1996-07-26 | 1998-02-04 | 武汉工业大学 | Ceramic compound coat bottom roller for silicon steel continuous annealing furnace |
| CN101113487A (en) * | 2007-09-04 | 2008-01-30 | 广州市锐优表面科技有限公司 | Annealing furnace roller surface peening coating and method for making same |
| CN101473052A (en) * | 2006-06-21 | 2009-07-01 | 新日本制铁株式会社 | Delivery roll, and hearth roll for continuous annealing furnace |
| CN101878316A (en) * | 2007-11-28 | 2010-11-03 | 新日本制铁株式会社 | Hearth roll for continuous annealing furnace and process for production of the same |
| CN104004211A (en) * | 2014-06-16 | 2014-08-27 | 滁州市宏源喷涂有限公司 | Fire retardant treatment process of plastics |
| CN104152841A (en) * | 2014-07-21 | 2014-11-19 | 江苏南山冶金机械制造有限公司 | Surface treatment process for carbon coated roller core |
| CN105272088A (en) * | 2015-11-05 | 2016-01-27 | 青岛环秀涂料有限公司 | Foam cement A-grade fireproof insulation board, composition for manufacturing insulation board and preparation method of insulation board |
| CN105503142A (en) * | 2015-12-18 | 2016-04-20 | 山东耀华特耐科技有限公司 | Light moldable material used for waste heat boiler and constructed under severe-cold condition |
| CN105734571A (en) * | 2016-04-21 | 2016-07-06 | 广州恩源化工科技有限公司 | Metal surface micro-etching liquid |
-
2016
- 2016-08-30 CN CN201610780151.2A patent/CN106363774A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1172172A (en) * | 1996-07-26 | 1998-02-04 | 武汉工业大学 | Ceramic compound coat bottom roller for silicon steel continuous annealing furnace |
| CN101473052A (en) * | 2006-06-21 | 2009-07-01 | 新日本制铁株式会社 | Delivery roll, and hearth roll for continuous annealing furnace |
| CN101113487A (en) * | 2007-09-04 | 2008-01-30 | 广州市锐优表面科技有限公司 | Annealing furnace roller surface peening coating and method for making same |
| CN101878316A (en) * | 2007-11-28 | 2010-11-03 | 新日本制铁株式会社 | Hearth roll for continuous annealing furnace and process for production of the same |
| CN104004211A (en) * | 2014-06-16 | 2014-08-27 | 滁州市宏源喷涂有限公司 | Fire retardant treatment process of plastics |
| CN104152841A (en) * | 2014-07-21 | 2014-11-19 | 江苏南山冶金机械制造有限公司 | Surface treatment process for carbon coated roller core |
| CN105272088A (en) * | 2015-11-05 | 2016-01-27 | 青岛环秀涂料有限公司 | Foam cement A-grade fireproof insulation board, composition for manufacturing insulation board and preparation method of insulation board |
| CN105503142A (en) * | 2015-12-18 | 2016-04-20 | 山东耀华特耐科技有限公司 | Light moldable material used for waste heat boiler and constructed under severe-cold condition |
| CN105734571A (en) * | 2016-04-21 | 2016-07-06 | 广州恩源化工科技有限公司 | Metal surface micro-etching liquid |
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