CN104400330B - A kind of processing method of the all-steel trunnion of refractory material protection - Google Patents
A kind of processing method of the all-steel trunnion of refractory material protection Download PDFInfo
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- CN104400330B CN104400330B CN201410534513.0A CN201410534513A CN104400330B CN 104400330 B CN104400330 B CN 104400330B CN 201410534513 A CN201410534513 A CN 201410534513A CN 104400330 B CN104400330 B CN 104400330B
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- refractory material
- trunnion
- inner bag
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- steel
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- 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
- B28B1/14—Producing shaped prefabricated articles from the material by simple casting, the material being neither forcibly fed nor positively compacted
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/44—Carbon
- C09C1/48—Carbon black
- C09C1/50—Furnace black ; Preparation thereof
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- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Ceramic Products (AREA)
Abstract
A kind of processing method of the all-steel trunnion of refractory material protection; steel plate is made inner bag; and inside inner bag, pour the refractory material being made up of pink fused alumina and bonding agent mix homogeneously; obtaining the all-steel trunnion of refractory material protection, in the trunnion that profit prepares in this way, the bulk density of refractory material is at least 3.0g/cm3, close to bulk density 3.2g/cm of machine made brick3And there is the intensity that can bear 20MPa external force destruction, intensity close to cement, washing away of high-temperature high-speed airflow can be born, will not deform upon, inner wall smooth, high-temperature gas is made to quickly move through, make raw oil be sheared atomization sustainedly and stably, product quality can be better ensured that, extend the service life of trunnion.
Description
Technical field
The invention belongs to processing method technical field, the processing method relating to a kind of trunnion, particularly
The processing method of the all-steel trunnion of the refractory material protection used in carbon black process.
Background technology
The core component trunnion of black reactor, is the feature of new process carbon black process units, trunnion
Shape decides carbon black mass and the production rate of process operation.Existing trunnion is to use high-temperature flame-proof material
Material is built by laying bricks or stones and is formed, due to reasons such as manufacture, uses, and in use frequent rushing because of high-temperature high-speed airflow
Brushing, and then shape changes, inwall becomes coarse, causes gas flow rate unstable, raw oil two
Secondary atomization is destroyed, and product quality produces fluctuation.
Summary of the invention
The present invention, in order to overcome the defect of prior art, devises the all-steel of a kind of refractory material protection
The processing method of trunnion, in the trunnion that profit prepares in this way, the bulk density of refractory material is at least
3.0g/cm3, close to bulk density 3.2g/cm of machine made brick3, and have can bear 20MPa external force break
Bad intensity, it is ensured that the carrying during installation and the requirement of strength of initial stage intensification, with outside recirculated water
Chuck with the use of, the intensity reduced under the surface temperature of refractory material, the condition of high temperature is maintained,
Erosion resistibility is strengthened, and keeps inner wall smooth, makes raw oil be sheared atomization sustainedly and stably, permissible
Better ensure that the continuous operation of production.
Concrete technical scheme of the present invention is: the all-steel trunnion of a kind of refractory material protection
Processing method, comprises the steps of
Prepared by A, inner bag, use steel plate bushing machine, steel plate is processed into tubular inner bag, and to inner bag
Inwall and diameter are machined out correction, it is ensured that error amount is within 0.5mm, and in the correspondence of inner bag
Oil gun mouth through hole is offered in position；
B, mould are installed, and are fixed in inner bag by mould with anchoring piece, and make the Split mold of many lobes admittedly
Being shaped as the tubular of entirety, leave filling gap between mould and inner bag, anchoring piece welds with inner bag
Fixing；
C, refractory material pour, and pink fused alumina, bonding agent mix homogeneously are made refractory material, Qi Zhongjie
The percentage by weight of mixture is 3～5%, is poured by refractory material in the filling gap in progressive rapid B,
And carry out ramming, until the bulk density of refractory material is at least up to 3.0g/cm3, stand 5 hours
To semi-finished product trunnion；
D, sizing of heating, be slowly heated to 100～150 DEG C by semi-finished product trunnion in step C, and constant temperature adds
Heat 48 hours, makes refractory material solidify and reaches to bear the intensity that 20MPa external force is destroyed, natural
It is cooled to room temperature；
E, mould are removed, and removed respectively by mould, and the inwall of refractory material is carried out repairing of flatness
Mend, obtain the all-steel trunnion of refractory material protection.
In described step B, after mould is installed and put in place, use mould by oil in oil gun mouth through hole
Muzzle through hole blocks and stretches out the outer outer wall with mould of oil gun mouth through hole and fits tightly.
In described step C, when pouring refractory material, pour after highly reaching 30～50mm,
Carry out a ramming, make the bulk density of refractory material be at least up to 3.0g/cm3, then proceed by
Pour, after pouring and the most again increasing 30～50mm, then carry out a ramming, make refractory material
Bulk density is at least up to 3.0g/cm3, iterative cycles is until one-piece casting process terminates.
In described step C, the percentage by weight of bonding agent is 3%.
In described step D, the time being slowly heated is maintained at 2～4 hours, heats up per hour
20～35 DEG C.
In described step D, in 48 hours of heated at constant temperature, first 24 hours to semi-finished product trunnion
Heating process for be not added with insulation cover heating, latter 24 hours for add insulation cover heat.
The invention has the beneficial effects as follows: pink fused alumina has that refractoriness is high, intensity big, good thermal shock stability,
Resistance to corrosion is strong, resistance to erosion, the feature that wear-resistant, high volume is stable, elevated temperature strength is high, will
Inner bag made by steel plate, and pour inside inner bag by pink fused alumina and bonding agent mix homogeneously make fire-resistant
Material, obtains the all-steel trunnion of refractory material protection, and trunnion is the temperature range of 1850～2000 DEG C
Inside there is optimum combination property.In trunnion, the bulk density of refractory material is at least 3.0g/cm3,
Bulk density 3.2g/cm close to machine made brick3, and there is the intensity that can bear 20MPa external force destruction,
Ensure that the carrying during installation and the requirement of strength of initial stage intensification, coordinate with outside recirculated water chuck and make
With, the intensity reduced under the surface temperature of refractory material, the condition of high temperature is maintained, antiscour energy
Power is strengthened, and keeps inner wall smooth, makes raw oil be sheared atomization sustainedly and stably, can preferably protect
The continuous operation that card produces, and extend the interval of trunnion periodic replacement.
Detailed description of the invention
The processing method of the all-steel trunnion of a kind of refractory material protection, comprises the steps of
Prepared by A, inner bag, use steel plate bushing machine, steel plate is processed into tubular inner bag, and to inner bag
Inwall and diameter are machined out correction, it is ensured that error amount is within 0.5mm, and in the correspondence of inner bag
Oil gun mouth through hole is offered in position；
B, mould are installed, and are fixed in inner bag by mould with anchoring piece, and make the Split mold of many lobes admittedly
Being shaped as the tubular of entirety, leave filling gap between mould and inner bag, anchoring piece welds with inner bag
Fixing, after mould is installed and put in place, use rod shape object to be blocked up by oil gun mouth through hole in oil gun mouth through hole
Fill in and stretch out the outer outer wall with mould of oil gun mouth through hole to fit tightly, be possible to prevent oil gun mouth through hole resistance to
Fire material blocking；
C, refractory material pour, and pink fused alumina, bonding agent mix homogeneously are made refractory material, Qi Zhongjie
The percentage by weight of mixture is preferably 3%, is poured by refractory material in the filling gap in progressive rapid B,
Pour after highly reaching 30～50mm, carry out a ramming, make the bulk density of refractory material at least up to
To 3.0g/cm3, then proceed by and pour, after pouring and the most again increasing 30～50mm, then enter
Ramming of row, makes the bulk density of refractory material be at least up to 3.0g/cm3, iterative cycles is until whole
Body casting process terminates, and stands and within 5 hours, obtains semi-finished product trunnion, this pours with ramming alternately
Mode, the bulk density of refractory material can be precisely controlled, make the bulk density of refractory material
Bulk density 3.2g/cm close to machine made brick3；
D, sizing of heating, exist semi-finished product trunnion in step C with the speed of 20～30 DEG C of heating up per hour
Being slowly heated to 100～150 DEG C in 2～4 hours, heated at constant temperature 48 hours, first 24 hours to semi-finished product
The heating process of trunnion, for being not added with insulation cover heating, for adding insulation cover heating, makes fire proofed wood in latter 24 hours
Material solidification also reaches to bear the intensity that 20MPa external force is destroyed, close to the intensity of cement, natural cooling
To room temperature；
E, mould are removed, and removed respectively by mould, and the inwall of refractory material is carried out repairing of flatness
Mend, obtain refractory material protection all-steel trunnion, trunnion have good resistance to high temperature corrosion ability and
Sherardizing steel ability, can bear washing away of high-temperature high-speed airflow, has higher loading softening during high temperature
Point, good formability, will not deform upon, inner wall smooth, make gas to quickly move through,
Make raw oil be sheared atomization sustainedly and stably, product quality can be better ensured that, extend trunnion
Service life.
The trunnion and existing refractory material trunnion that utilize the processing method of the present invention prepare is given below
Some technical parameters, as shown in table 1:
Table 1
| Performance | Existing refractory material trunnion | The trunnion that the present invention prepares |
| Bulk density g/cm3 | 3.25 | 3.0～3.2 |
| Compressive resistance MPa | 100 | 80 |
| Refractoriness (DEG C) ＞ | 1800 | 2000 (surfaces) |
| Load softening point 0.2MPa*6% | 1700 | 1850 |
| Resistance to erosion erosiveness | Typically | Well |
| Service life (h)≤ | 2160 | 3000 |
From the data of table 1, the bulk density utilizing the trunnion that the processing method of the present invention prepares is
3.0～3.2g/cm3, close to the bulk density of existing refractory material trunnion, the volume having reached machine made brick is close
Degree 3.2g/cm3, compressive resistance is up to 80MPa, under the cooling effect of recirculated water coordinates, and refractoriness
All high than existing refractory material trunnion with load softening point, resistance to erosion ability is more preferable, can bear ratio existing
There is washing away of the higher high-temperature high-speed airflow of technique, keep higher surface strength, be not susceptible to deformation,
Inner wall smooth, makes raw oil be sheared atomization sustainedly and stably, can better ensure that product quality,
Service life can be up to 3000h, substantially prolongs the service life of trunnion.
Claims (6)
1. the processing method of the all-steel trunnion of a refractory material protection, it is characterised in that comprise following
Step:
Prepared by A, inner bag, use steel plate bushing machine, steel plate is processed into tubular inner bag, and to inner bag
Inwall and diameter are machined out correction, it is ensured that error amount is within 0.5mm, and in the correspondence of inner bag
Oil gun mouth through hole is offered in position；
B, mould are installed, and are fixed in inner bag by mould with anchoring piece, and make the Split mold of many lobes admittedly
Being shaped as the tubular of entirety, leave filling gap between mould and inner bag, anchoring piece welds with inner bag
Fixing；
C, refractory material pour, and pink fused alumina, bonding agent mix homogeneously are made refractory material, Qi Zhongjie
The percentage by weight of mixture is 3～5%, is poured by refractory material in the filling gap in progressive rapid B,
And carry out ramming, until the bulk density of refractory material is at least up to 3.0g/cm3, stand 5 hours
To semi-finished product trunnion；
D, sizing of heating, be slowly heated to 100～150 DEG C by semi-finished product trunnion in step C, and constant temperature adds
Heat 48 hours, makes refractory material solidify and reaches to bear the intensity that 20MPa external force is destroyed, natural
It is cooled to room temperature；
E, mould are removed, and removed respectively by mould, and the inwall of refractory material is carried out repairing of flatness
Mend, obtain the all-steel trunnion of refractory material protection.
The processing method of the all-steel trunnion of a kind of refractory material the most according to claim 1 protection,
It is characterized in that: in described step B, after mould is installed and put in place, use in oil gun mouth through hole
Oil gun mouth through hole is blocked and stretches out the outer outer wall with mould of oil gun mouth through hole and fits tightly by mould.
The processing method of the all-steel trunnion of a kind of refractory material the most according to claim 1 protection,
It is characterized in that: in described step C, when pouring refractory material, pour and highly reach 30～50mm
After, carry out a ramming, make the bulk density of refractory material be at least up to 3.0g/cm3, then proceed to
Pour, after pouring and the most again increasing 30～50mm, then carry out a ramming, make fire proofed wood
The bulk density of material is at least up to 3.0g/cm3, iterative cycles is until one-piece casting process terminates.
The processing method of the all-steel trunnion of a kind of refractory material the most according to claim 1 protection,
It is characterized in that: in described step C, the percentage by weight of bonding agent is 3%.
The processing method of the all-steel trunnion of a kind of refractory material the most according to claim 1 protection,
It is characterized in that: in described step D, the time being slowly heated is maintained at 2～4 hours, per hour
Heat up 20～35 DEG C.
The processing method of the all-steel trunnion of a kind of refractory material the most according to claim 1 protection,
It is characterized in that: in described step D, in 48 hours of heated at constant temperature, first 24 hours double
The heating process of finished product trunnion is for being not added with insulation cover heating, and latter 24 hours for adding insulation cover heating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410534513.0A CN104400330B (en) | 2014-10-11 | 2014-10-11 | A kind of processing method of the all-steel trunnion of refractory material protection |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410534513.0A CN104400330B (en) | 2014-10-11 | 2014-10-11 | A kind of processing method of the all-steel trunnion of refractory material protection |
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| CN104400330A CN104400330A (en) | 2015-03-11 |
| CN104400330B true CN104400330B (en) | 2016-08-24 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86104576A (en) * | 1986-07-03 | 1988-01-27 | 化学工业部炭黑工业研究设计所 | Produce the sooty method and apparatus |
| US4902487A (en) * | 1988-05-13 | 1990-02-20 | Johnson Matthey, Inc. | Treatment of diesel exhaust gases |
| CN2075198U (en) * | 1990-09-05 | 1991-04-17 | 天津炭黑厂 | Improved structure of carbon black furnace body |
| CN202595019U (en) * | 2012-05-18 | 2012-12-12 | 邯郸黑猫炭黑有限责任公司 | Octagon throat tube device for 40,000 ton/year carbon block reaction furnace |
| CN202688250U (en) * | 2012-07-24 | 2013-01-23 | 江西黑猫炭黑股份有限公司 | Throat pipe device favorable for increasing specific surface area of carbon black |
| CN102994676A (en) * | 2012-12-20 | 2013-03-27 | 武钢集团昆明钢铁股份有限公司 | Small wear-resistant bush for blast-furnace tuyere and manufacture method thereof |
| CN203833862U (en) * | 2014-04-11 | 2014-09-17 | 嘉峪关大友嘉能化工有限公司 | Carbon black reacting furnace throat pipe device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04359068A (en) * | 1991-06-04 | 1992-12-11 | Tokai Carbon Co Ltd | Carbon black producing furnace |
-
2014
- 2014-10-11 CN CN201410534513.0A patent/CN104400330B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86104576A (en) * | 1986-07-03 | 1988-01-27 | 化学工业部炭黑工业研究设计所 | Produce the sooty method and apparatus |
| US4902487A (en) * | 1988-05-13 | 1990-02-20 | Johnson Matthey, Inc. | Treatment of diesel exhaust gases |
| CN2075198U (en) * | 1990-09-05 | 1991-04-17 | 天津炭黑厂 | Improved structure of carbon black furnace body |
| CN202595019U (en) * | 2012-05-18 | 2012-12-12 | 邯郸黑猫炭黑有限责任公司 | Octagon throat tube device for 40,000 ton/year carbon block reaction furnace |
| CN202688250U (en) * | 2012-07-24 | 2013-01-23 | 江西黑猫炭黑股份有限公司 | Throat pipe device favorable for increasing specific surface area of carbon black |
| CN102994676A (en) * | 2012-12-20 | 2013-03-27 | 武钢集团昆明钢铁股份有限公司 | Small wear-resistant bush for blast-furnace tuyere and manufacture method thereof |
| CN203833862U (en) * | 2014-04-11 | 2014-09-17 | 嘉峪关大友嘉能化工有限公司 | Carbon black reacting furnace throat pipe device |
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| CN104400330A (en) | 2015-03-11 |
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