CN110508761A - A kind of quick casting pig technique of 180 tons of iron packets - Google Patents
A kind of quick casting pig technique of 180 tons of iron packets Download PDFInfo
- Publication number
- CN110508761A CN110508761A CN201910751254.XA CN201910751254A CN110508761A CN 110508761 A CN110508761 A CN 110508761A CN 201910751254 A CN201910751254 A CN 201910751254A CN 110508761 A CN110508761 A CN 110508761A
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- Prior art keywords
- pig
- iron
- machine
- ladle
- tons
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C3/00—Selection of compositions for coating the surfaces of moulds, cores, or patterns
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D3/00—Pig or like casting
Abstract
The invention discloses a kind of quick casting pig techniques of 180 tons of iron packets comprising the steps of: (1) by 310/80t ladle carne, slings ladle and be transported to above pig machine；(2) ladle is hoisted on hydraulic dumping device, starts hydraulic dumping device for iron melt tank, bolt locking, ladle, which starts to topple over cast iron, to be started；(3) start chain belt of pig machine, pig mold travels forward along track, and pig mold fills iron；(4) it opens cooling water progress spraying cooling and waits for that entire chain belt reaches pig machine head, first piece of iron block falls off from pig mold falls into pig iron stockyard, opens head spraying cooling water installations；(5) when pig mold is returned by lower layer, pig machine middle position is marched to, opens slurrying, spraying system；(6) casting pig is oriented to through chute and imports iron block stockyard, and iron block is filled automobile outward transport by forklift.The application can shorten the cast iron period by quick cast iron, reduce labor intensity of workers, increase casting machine operating efficiency, improve yield.
Description
Technical field
The present invention relates to a kind of quick casting pig techniques of 180 tons of iron packets, are applied to molten iron casting iron technology field.
Background technique
Pig machine is to smelt iron a kind of equipment for pig iron of casting in workshop, is made of a series of endless-chain band equipped with casting molds,
Iron liquid injects running casting mold one by one at one end, water-spraying control in painting, when reaching cast iron drive end unit chain belt and making counter motion,
The iron block of solidification falls off from casting mold automatically.Currently on the market, casting iron craft transformation is directed to tumble dress mainly in pig machine
It sets, spray cooling device and relevant scrap build, not being transformed to casting pig process aspect, existing iron-founder
The skill period is longer, and the labor intensity of worker is larger, and operating efficiency is not high.
Summary of the invention
To solve the problem above-mentioned, it to include following step that the invention discloses a kind of quick casting pig techniques of 180 tons of iron packets
It is rapid:
(1) molten iron that blast fumance comes out is transported to steelshop charging across then in steelshop 310/ with hot-metal ladle and carriage
80t ladle carne is sling ladle and is transported to above pig machine；
(2) ladle is hoisted on hydraulic dumping device, and overhead traveling crane breaks off relations, and comes back for other lifting jobs, while starting molten iron
Tank hydraulic dumping device, bolt locking, ladle starts to topple over, and when turning angle is to 25 degree, ladle starts tapping and flow to
In Molten iron chute impact zone, when molten iron net weight reaches 2~5 ton hours in chute, chute baffle is pushed aside rapidly, molten iron is equal along slag runner
Uniform flow enters in pig machine swage, and cast iron starts；
(3) start chain belt of pig machine, pig mold travels forward along track, keeps chain tape running speed in 8~16m/min, chain belt
Frequency control frequency is initially increased to 40HZ from 0, and pig mold fills iron；
(4) 1 section of cooling water valve is opened, 2 ~ 5 pairs of pig molds is filled to pig machine, opens 2~4 sections of cooling water valves, to filling 8
After~10 pairs of pig molds, 5 ~ 6 sections of cooling water valves are opened, reach pig machine head to entire chain belt, first piece of iron block is from cast iron
Mould, which falls off, falls into pig iron stockyard, opens head spraying cooling water installations；
(5) when pig mold is returned by lower layer, pig machine middle position is marched to, opens slurrying, spraying system, pig mold inner surface
Mortar is sprayed, by the residual heat drying of pig mold, layer protecting film is formed in pig mold inner surface, makes the high temperature liquid iron of casting not
It is directly contacted with pig mold, avoids being sintered together, iron block is made to be easy to demould；
(6) casting pig is oriented to through chute and imports iron block stockyard, and iron block is filled automobile by forklift
Outward transport, chute top is equipped with spraying cooling, when the angle of tumbling of hydraulic dumping device reaches 90 °, after 90 ° of zero load of tumbling
Hydraulic dumping device resets, and resetting time 2-5min, maximum is tumbled 92 ° of angle=, and 310/80t overhead traveling crane hangs away empty packet to pig machine
Lower section designated place, cast iron terminate, after pig machine spraying cooling use leading portion slow cooling, middle section is cold by force, cold mode in back segment.
Further, in above-mentioned steps 1, molten steel quality requires to be tapping temperature >=1480 DEG C；Molten iron Si(%)≤0.45；
Molten iron S(%)≤0.045, tapping temperature is measured in blast furnace iron notch, and molten iron can generate temperature during being hoisted to pig machine
Drop answers the tapping temperature of strict control molten iron to guarantee that iron packet has higher temperature when cast iron starts.
Further, single iron clad water Weight control is in 120t~180t.
Further, Molten iron chute is mounted in tail steel platform, i.e., hot-metal bottle slips mouth lower section and pig machine driven sprocket
Between the pour point of top, the molten iron in ladle is diverted to the pig mold of two upper layer chain belts of pig machine by Molten iron chute
It is interior.
Further, remaining scum in cleaning Molten iron chute, builds slag runner using ramming mass reparation, entirely before cast iron starts
Clear up repair time requirement≤30min.
Further, pig machine drive control uses variable-frequency governor, and each chain belt is separately controlled, and chain tape running speed is wanted
8-16m/min is sought, controls and requires on station in control room, frequency≤50HZ.
Further, after hydraulic dumping device starting, tipping speed is kept constant, and is at the uniform velocity toppled over, and 0~25 ° of angle of tumbling
Used time≤10min, 25~60 ° of used time≤25min, 60~90 ° of used time≤25min.
Further, in above-mentioned steps 5, mortar raw material uses lime, coal slime, and weight is mixed according to 2:1 and is added, according to ash
Starching sticky situation can appropriate adjustment ratio.
The technical program is used, the beneficial effects of the present invention are: the application can shorten the cast iron period by quick cast iron,
Labor intensity of workers is reduced, casting machine operating efficiency is increased, improves yield.
Detailed description of the invention
The step of Fig. 1 is of the invention a kind of 180 tons of iron packets quick casting pig technique figure；
Fig. 2 is a kind of timing diagram of the quick casting pig technique of 180 tons of iron packets of the invention.
Specific embodiment
In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, tie below
Specific embodiment is closed, the present invention is further explained.
Embodiment one: iron wraps 1420 DEG C of platform temperature <, and molten iron temperature is low when cast iron starts comprising the steps of:
(1) every iron clad water net weight requires 150~180t, molten iron Si(%)≤0.45；Molten iron S(%)≤0.045；
(2) cast iron starts 0~5mim, and chain belt electric machine frequency 45HZ is arranged in variable-frequency governor；5~45min electric machine frequency 50HZ；Casting
45~55min of iron later period, electric machine frequency 40HZ；
(3) hydraulic dumping device, angle of tumbling 0~25 ° of used time≤5mim, 25~60 ° of used time≤25mim, 60~90 ° of used times≤
25mim resets after 90 ° of zero load of tumbling, and 2~5min of resetting time, maximum is tumbled 92 ° of angle=；
(4) pig machine spraying cooling water is opened: 1 section of cooling water valve opens 1/3 after pig mold fills iron, fills 2 ~ 5 pairs to pig machine
Pig mold, 2~4 sections of cooling water valves open 1/2, and to after filling 8~10 pairs of pig molds, 5 ~ 6 sections of cooling water valves open 1/2, to whole
A chain belt reaches pig machine head, and first piece of iron block falls off from pig mold falls into pig iron stockyard, opens head spraying cooling water
Device；
(5) mortar raw material uses lime, coal slime, and weight is mixed according to 2:1 and is added；It is interior according to iron block stripping result in pig mold
Surface quality situation adjusts lime, coal slime dosage, guarantees that mortar is not uniform, tacky；
(6) during cast iron, scum in Molten iron chute is cleared up in time, guarantees that molten iron flow is smooth；
(7) it tumbles to hydraulic to 90 °, quantity of slag situation in field observation iron packet starts to be precipitated, cast iron terminates to packet floor iron slag；
(8) within cast iron time control 55mim.
Embodiment two: iron wraps 1480 DEG C of platform temperature >, and molten iron temperature is high when cast iron starts, and includes
Following steps:
(1) every iron clad water net weight requires 150~180t, molten iron Si(%)≤0.45；Molten iron S(%)≤0.045；
(2) cast iron starts 0~5mim, and chain belt electric machine frequency 40HZ is arranged in variable-frequency governor；5~40min electric machine frequency 50HZ；Casting
40~65min of iron later period, electric machine frequency 40HZ；
(3) hydraulic dumping device, angle of tumbling 0~25 ° of used time≤10mim, 25~60 ° of used time≤30mim, 60~90 ° of used times
≤ 30mim resets after 90 ° of zero load of tumbling, and 2~5min of resetting time, maximum is tumbled 92 ° of angle=；
(4) pig machine spraying cooling water is opened: 1 section of cooling water valve opens 1/2 after pig mold fills iron, fills 2 ~ 5 pairs to pig machine
Pig mold, 2~4 sections of cooling water valve standard-sized sheets, to after filling 8~10 pairs of pig molds, 5 ~ 6 sections of cooling water valve standard-sized sheets, to entire
Chain belt reaches pig machine head, and first piece of iron block falls off from pig mold falls into pig iron stockyard, opens head spraying cooling water dress
It sets；
(5) mortar raw material uses lime, coal slime, and weight is mixed according to 2:1 and is added；It is interior according to iron block stripping result in pig mold
Surface quality situation adjusts lime, coal slime dosage, guarantees that mortar is not uniform, tacky；
(6) during cast iron, scum in Molten iron chute is cleared up in time, guarantees that molten iron flow is smooth；
(7) it tumbles to hydraulic to 90 °, quantity of slag situation in field observation iron packet starts to be precipitated, cast iron terminates to packet floor iron slag；
(8) within cast iron time control 65mim.
Embodiment three: iron wraps platform temperature at 1420~1480 DEG C, and molten iron temperature is normal when cast iron starts, and includes following step
It is rapid:
(1) single iron clad water net weight 150~180t, molten iron Si(%)≤0.45；Molten iron S(%)≤0.045；
(2) cast iron starts 0~5mim, and chain belt electric machine frequency 40HZ is arranged in variable-frequency governor；5~40min electric machine frequency 50HZ；Casting
40~60min of iron later period, electric machine frequency 40HZ；
(3) hydraulic dumping device, angle of tumbling 0~25 ° of used time≤10mim, 25~60 ° of used time≤25mim, 60~90 ° of used times
≤ 25mim resets after 90 ° of zero load of tumbling, and 2~5min of resetting time, maximum is tumbled 92 ° of angle=；
(4) pig machine spraying cooling water is opened: 1 section of cooling water valve opens 1/2 after pig mold fills iron, fills 2 ~ 5 pairs to pig machine
Pig mold, 2~4 sections of cooling water valve standard-sized sheets, to after filling 8~10 pairs of pig molds, 5 ~ 6 sections of cooling water valves open 1/2, to whole
A chain belt reaches pig machine head, and first piece of iron block falls off from pig mold falls into pig iron stockyard, opens head spraying cooling water
Device；
(5) mortar raw material uses lime, coal slime, and weight is mixed according to 2:1 and is added；It is interior according to iron block stripping result in pig mold
Surface quality situation adjusts lime, coal slime dosage, guarantees that mortar is not uniform, tacky；
(6) during cast iron, scum in Molten iron chute is cleared up in time, guarantees that molten iron flow is smooth；
(7) it tumbles to hydraulic to 90 °, quantity of slag situation in field observation iron packet starts to be precipitated, cast iron terminates to packet floor iron slag；
(8) within cast iron time control 60mim.
Finally, it should be noted that above embodiments are only to illustrate the present invention and not limit technology described in the invention
Scheme；Therefore, although this specification is referring to above-mentioned each embodiment, the present invention has been described in detail, this
Field it is to be appreciated by one skilled in the art that still can modify to the present invention or equivalent replacement；And all do not depart from this
The technical solution and its improvement of the spirit and scope of invention, should all cover within the scope of the claims of the present invention.
Claims (8)
1. a kind of quick casting pig technique of 180 tons of iron packets, which is characterized in that comprise the steps of:
Molten iron that blast fumance comes out is transported to steelshop charging across then with 310/80t in steelshop with hot-metal ladle and carriage
Ladle carne is sling ladle and is transported to above pig machine；
Ladle is hoisted on hydraulic dumping device, and overhead traveling crane breaks off relations, and comes back for other lifting jobs, while starting hot-metal bottle liquid
Tipple is pressed, bolt locking, ladle starts to topple over, and when turning angle is to 25 degree, ladle starts tapping and flow to molten iron
In chute impact zone, when molten iron net weight reaches 2~5 ton hours in chute, chute baffle is pushed aside rapidly, molten iron is along slag runner uniform flow
Enter in pig machine swage, cast iron starts；
Start chain belt of pig machine, pig mold travels forward along track, keeps chain tape running speed in 8~16m/min, chain belt frequency conversion
Speed regulation frequency is initially increased to 40HZ from 0, and pig mold fills iron；
Open 1 section of cooling water valve, fill 2 ~ 5 pairs of pig molds to pig machine, open 2~4 sections of cooling water valves, to fill 8~
After 10 pairs of pig molds, 5 ~ 6 sections of cooling water valves are opened, reach pig machine head to entire chain belt, first piece of iron block is from pig mold
It falls off and falls into pig iron stockyard, open head spraying cooling water installations；
When pig mold is returned by lower layer, pig machine middle position is marched to, opens slurrying, spraying system, the spray of pig mold inner surface
Buttering forms layer protecting film in pig mold inner surface, keeps the high temperature liquid iron of casting not straight by the residual heat drying of pig mold
It connects and is contacted with pig mold, avoid being sintered together, iron block is made to be easy to demould；
Casting pig is oriented to through chute and imports iron block stockyard, and iron block is filled automobile by forklift
Outward transport, chute top is equipped with spraying cooling, when the angle of tumbling of hydraulic dumping device reaches 90 °, after 90 ° of zero load of tumbling
Hydraulic dumping device resets, and resetting time 2-5min, maximum is tumbled 92 ° of angle=, and 310/80t overhead traveling crane hangs away empty packet to pig machine
Lower section designated place, cast iron terminate, after pig machine spraying cooling use leading portion slow cooling, middle section is cold by force, cold mode in back segment.
2. a kind of quick casting pig technique of 180 tons of iron packets according to claim 1,
It is characterized by: molten steel quality requires to be tapping temperature >=1480 DEG C in above-mentioned steps 1；Molten iron Si(%)≤0.45；Iron
Water S(%)≤0.045.
3. a kind of quick casting pig technique of 180 tons of iron packets according to claim 1,
It is characterized by: single iron clad water Weight control is in 120t~180t.
4. a kind of quick casting pig technique of 180 tons of iron packets according to claim 1,
It is characterized by: Molten iron chute is mounted in tail steel platform, i.e., hot-metal bottle slips below mouth and on pig machine driven sprocket
Between the pour point of side, the molten iron in ladle is diverted in the pig mold of two upper layer chain belts of pig machine by Molten iron chute.
5. a kind of quick casting pig technique of 180 tons of iron packets according to claim 1,
It is characterized by: cast iron clears up remaining scum in Molten iron chute before starting, slag runner is built using ramming mass reparation, it is entire clear
Manage repair time requirement≤30min.
6. a kind of quick casting pig technique of 180 tons of iron packets according to claim 1,
It is characterized by: pig machine drive control uses variable-frequency governor, each chain belt is separately controlled, the requirement of chain tape running speed
8-16m/min is controlled on station in control room and is required, frequency≤50HZ.
7. a kind of quick casting pig technique of 180 tons of iron packets according to claim 1,
It is characterized by: tipping speed is kept constant, and is at the uniform velocity toppled over after hydraulic dumping device starting, 0~25 ° of angle of tumbling with
When≤10min, 25~60 ° of used time≤25min, 60~90 ° of used time≤25min.
8. a kind of quick casting pig technique of 180 tons of iron packets according to claim 1,
It is characterized by: mortar raw material uses lime, coal slime, and weight is mixed according to 2:1 and is added, according to mortar in above-mentioned steps 5
Sticky situation can appropriate adjustment ratio.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910751254.XA CN110508761A (en) | 2019-08-15 | 2019-08-15 | A kind of quick casting pig technique of 180 tons of iron packets |
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| CN201910751254.XA CN110508761A (en) | 2019-08-15 | 2019-08-15 | A kind of quick casting pig technique of 180 tons of iron packets |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113680956A (en) * | 2020-05-19 | 2021-11-23 | 中冶宝钢技术服务有限公司 | Guniting material for cast iron process, manufacturing method thereof and cast iron process |
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Application publication date: 20191129 |