CN113680956A - Guniting material for cast iron process, manufacturing method thereof and cast iron process - Google Patents
Guniting material for cast iron process, manufacturing method thereof and cast iron process Download PDFInfo
- Publication number
- CN113680956A CN113680956A CN202010423736.5A CN202010423736A CN113680956A CN 113680956 A CN113680956 A CN 113680956A CN 202010423736 A CN202010423736 A CN 202010423736A CN 113680956 A CN113680956 A CN 113680956A
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- cast iron
- stirring
- mold
- stirring tank
- guniting
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- 229910001018 Cast iron Inorganic materials 0.000 title claims abstract description 130
- 239000000463 material Substances 0.000 title claims abstract description 54
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 22
- 230000008569 process Effects 0.000 title claims abstract description 22
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 90
- 229910052742 iron Inorganic materials 0.000 claims abstract description 45
- 238000005266 casting Methods 0.000 claims abstract description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 12
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims abstract description 12
- 235000011941 Tilia x europaea Nutrition 0.000 claims abstract description 12
- 239000000440 bentonite Substances 0.000 claims abstract description 12
- 229910000278 bentonite Inorganic materials 0.000 claims abstract description 12
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000010439 graphite Substances 0.000 claims abstract description 12
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 12
- 239000004571 lime Substances 0.000 claims abstract description 12
- 239000002994 raw material Substances 0.000 claims abstract description 6
- 238000003756 stirring Methods 0.000 claims description 99
- 239000011378 shotcrete Substances 0.000 claims description 15
- 238000001816 cooling Methods 0.000 claims description 7
- 238000002156 mixing Methods 0.000 claims description 7
- 239000000428 dust Substances 0.000 claims description 5
- 239000007921 spray Substances 0.000 claims description 5
- 238000005406 washing Methods 0.000 claims 1
- 239000002002 slurry Substances 0.000 description 16
- 230000000694 effects Effects 0.000 description 6
- 238000004537 pulping Methods 0.000 description 5
- 238000005507 spraying Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000007790 scraping Methods 0.000 description 3
- 238000009628 steelmaking Methods 0.000 description 3
- 230000007306 turnover Effects 0.000 description 3
- 239000003245 coal Substances 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 235000013312 flour Nutrition 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 229910001060 Gray iron Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
Images
Classifications
-
- 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
- B22C—FOUNDRY MOULDING
- B22C23/00—Tools; Devices not mentioned before for moulding
- B22C23/02—Devices for coating moulds or cores
Abstract
The invention provides a guniting material for a cast iron process, which comprises the following raw material components in percentage by mass: graphite: 16% -18%; lime: 11% -13%; bentonite: 4% -6%; water: 63% -66%; auxiliary materials: 0.5 to 2 percent. The guniting material is sprayed on a cast iron mold in the process of casting iron, so that a cast iron block is rapidly separated from the cast iron mold, the demolding rate is as high as 99%, the cast iron production efficiency is improved, the requirement of safety production is met, the equipment downtime is reduced, the cast iron capacity is increased, the safety of operators is ensured, and the economic efficiency and the social efficiency are finally created for enterprises.
Description
Technical Field
The invention relates to the field of blast furnace iron making, in particular to a guniting material for a cast iron process, a manufacturing method of the guniting material and a cast iron process using the guniting material.
Background
The pig-casting machine is a necessary production device for large-scale steel plants, and plays a role in balancing molten steel and molten iron logistics in the steel-making and iron-making production processes of the steel plants. During the blast furnace maintenance and blowing-in period of a newly-built blast furnace or a blast furnace, because the molten iron composition and the temperature cannot meet the steelmaking requirement, a pig casting machine is required to be used for carrying out cast iron production. In addition, when the heavy iron mixer is lifted up during maintenance and overhaul of equipments such as a converter in a steel plant or when a trouble occurs in a steel making equipment, a cast iron production operation is also required in order to facilitate the turnover of the iron mixer, maintain the balance of material flow, and ensure the full-air production of a blast furnace.
Furthermore, in the process of using the pig machine to carry out the block-making operation of the blast furnace molten iron cast iron, the pig machine can spray guniting material to the cast iron mould, so that the cast iron blocks solidified by the molten iron can fall off from the cast iron mould. However, the existing guniting material has the problem of low demoulding efficiency of the iron casting machine, namely, the cast iron blocks cannot fall off from the cast iron mould smoothly, so that excessive cast iron blocks are adhered to the inner wall of the cast iron mould, further, moisture is remained in a gap between the cast iron blocks and the cast iron mould, and further, sound explosion can occur during cast iron production. This not only can damage the equipment by explosion, causing the production of cast iron to be interrupted, but also can injure the operating personnel, which is very dangerous.
Disclosure of Invention
In view of the above disadvantages of the prior art, the present invention aims to provide a guniting material for a cast iron process, which effectively improves the demolding efficiency of a cast iron machine and meets the requirement of safe production.
In order to achieve the aim, the invention provides a guniting material for a cast iron process, which comprises the following raw material components in percentage by mass:
graphite: 16% -18%;
lime: 11% -13%;
bentonite: 4% -6%;
water: 63% -66%;
auxiliary materials: 0.5 to 2 percent.
Further, the mass ratio of the graphite is 18%, the mass ratio of the lime is 12%, the mass ratio of the bentonite is 4.5%, the mass ratio of the water is 64%, and the mass ratio of the auxiliary material is 1.5%.
The invention also provides a manufacturing method of the guniting material for the cast iron process, which sequentially comprises the following steps of:
a1, adding water into a stirring tank of stirring equipment, so that the water capacity in the stirring tank is greater than 50% of the capacity of the stirring tank, wherein the stirring equipment is also provided with a stirring rod group arranged in the stirring tank and a stirring motor for driving the stirring rod group to rotate;
a2, starting a stirring motor, driving a stirring rod group to rotate by the stirring motor, and executing stirring operation;
a3, adding water into the stirring tank to enable the mass ratio of the water in the stirring tank to be 63-66%;
a4, adding 16-18% of graphite by mass in a stirring tank, and stirring while adding;
a5, adding 11-13% by mass of lime into a stirring tank, and stirring while adding;
a6, adding 4-6% of bentonite in mass ratio into a stirring tank, and stirring while adding;
a7, adding 0.5-2% of auxiliary materials by mass into a stirring tank, and stirring while adding;
a8, mixing and stirring for 10-20 minutes.
Further, in the step a1, the water capacity in the stirring tank is 50% -60% of the stirring tank capacity.
Furthermore, after two torpedo ladle molten iron pots are cast, the inner wall of the stirring tank is washed for 5-10 minutes.
Further, agitated vessel sets up in the slurrying of pig machine indoor, the roof of slurrying room is provided with dust collecting equipment, still be equipped with on the agitated vessel with communicating charge door of stirred tank, semicircular entrapment cover and removable cover, the entrapment cover is fixed in agitated vessel and covers a part of stirred tank upper end, the entrapment covers and sets up the breach portion that allows the charge door to expose, removable cover movably installs in agitated vessel and covers all the other parts of stirred tank upper end.
The invention also provides a cast iron process, which comprises the following steps:
s1, baking the cast iron mold in the pig casting machine;
s2, pouring the molten iron conveyed by the torpedo ladle into a groove of an iron casting machine, and shunting the molten iron and then flowing into an iron casting mold;
s3, conveying the cast iron mold by a crawler conveyor in the pig casting machine, wherein the cast iron mold passes through a cooling chamber in the pig casting machine, and the molten iron in the cast iron mold is cooled into a cast iron block;
s4, conveying the cast iron mold by the crawler conveyor, turning the cast iron mold at the reversing position of the crawler conveyor, and separating the cast iron blocks from the cast iron mold;
s5, the above steps S1 to S4, the gunite system of the pig machine sprays gunite to the cast iron mold, wherein the gunite is the gunite as described above.
As described above, the gunite for the cast iron process, the manufacturing method thereof, and the cast iron process according to the present invention have the following advantageous effects:
the guniting material is sprayed on a cast iron mold in the process of casting iron, so that a cast iron block is rapidly separated from the cast iron mold, the demolding rate is as high as 99%, the cast iron production efficiency is improved, the requirement of safety production is met, the equipment downtime is reduced, the cast iron capacity is increased, the safety of operators is ensured, and the economic efficiency and the social efficiency are finally created for enterprises.
Drawings
Fig. 1 is a schematic structural diagram of an iron casting machine according to the present application.
Fig. 2 is a top view of fig. 1.
FIG. 3 is a flow chart of the cast iron process of the present application.
Fig. 4 is a schematic structural view of a stirring device in the present application, which is a top view.
Description of the element reference numerals
10 gas baking system
20 crawler-type conveyer
30 cast iron mould
40 guniting system
50 turn over device
60 iron falling collecting vehicle
70 stirring device
71 agitation tank
72 stirring rod set
73 stirring motor
74 feed inlet
75 collecting cover
76 removable cover
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
It should be understood that the structures, proportions, and dimensions shown in the drawings and described herein are for illustrative purposes only and are not intended to limit the scope of the present invention, which is defined by the claims, but rather by the claims. In addition, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description only and are not intended to limit the scope of the present invention, and changes or modifications of the relative relationship thereof may be made without substantial technical changes and modifications.
The application provides a pig casting machine, a pig casting process using the pig casting machine, a gunite sprayed on a cast iron die 30 in the pig casting process, and a manufacturing method of the gunite.
The pig casting machine is used for producing cast iron blocks of blast furnace molten iron. As shown in fig. 1 and 2, the pig casting machine provided by the present application includes a trough, a runner connected to the trough, a gas roasting system 10, a crawler conveyor 20, a plurality of pig molds 30, a cooling chamber, a slurry making system, a slurry spraying system 40, a turning device 50, an iron raking device, a falling iron collecting vehicle 60 disposed at the iron raking device, a apron conveyor, and a chute. The crawler conveyor 20 has a conveying crawler, and a plurality of cast iron molds 30 are fixed to the conveying crawler and arranged in sequence along the running direction of the conveying crawler. And a water spraying system is arranged in the cooling chamber. The pulping system comprises a pulping chamber and stirring equipment 70 arranged in the pulping chamber, wherein the stirring equipment 70 is used for mixing and stirring each raw material component of the guniting material. The guniting system 40 comprises a slurry pool, a guniting pump, a slurry pipe connected with the guniting pump, and a plurality of slurry nozzles installed on the slurry pipe, wherein the inlet end of the slurry pool is connected with the output end of the stirring device 70, and the output end of the slurry pool is connected with the guniting pump. The turning device 50 is arranged at the reversing position of the crawler conveyor 20, namely at the end part of the conveying crawler, and the turning device 50 acts on the cast iron mold 30 at the end part of the conveying crawler to turn the cast iron mold 30. The iron raking device is arranged in the return path of the crawler conveyor 20 and acts on the cast iron blocks in the cast iron mold 30.
The application also provides a casting process using the casting machine. As shown in fig. 3, the casting process comprises the following steps:
s1, starting the pig casting machine, baking the cast iron mold 30 in the pig casting machine by the gas baking system 10 in the pig casting machine 30 minutes before casting, and automatically spraying guniting to the cast iron mold 30 by the guniting system 40.
And S2, pouring the molten iron conveyed by the torpedo ladle into the pit of the pig casting machine, shunting the molten iron after passing through the iron runner, and then flowing into the cast iron mold 30 on the crawler-type conveyor 20. In this example, the pig machine produced ordinary gray cast iron, with the molten iron temperature being 1200 ℃ -1300 ℃.
And S3, conveying the cast iron mold 30 by the crawler-type conveyor 20 in the pig casting machine, wherein the cast iron mold 30 passes through a cooling chamber in the pig casting machine, and a water spraying system in the cooling chamber sprays water to the cast iron mold 30. The gunite system 40 of the pig machine automatically blows gunite to the cast iron mold 30 during the process of baking the cast iron mold 30 and cooling the molten iron. The molten iron in the cast iron mold 30 is cooled by water and subjected to the action of the gunite to form a cast iron block.
S4, when the crawler conveyor 20 continues to convey the cast iron mold 30 with the operation of the crawler conveyor 20, the cast iron mold 30 is conveyed to the reversing position of the crawler conveyor 20, that is, the left upper end of the conveying crawler in fig. 1, where the turning device 50 in the iron casting machine acts on the cast iron mold 30 to turn over the cast iron mold 30, and the cast iron blocks are separated from the cast iron mold 30 by the anti-sticking characteristic of the guniting and the self-gravity action.
S5, the above steps S1 to S4, the guniting system 40 of the pig machine sprays guniting material to the cast iron mold 30, wherein the guniting material is the guniting material as described above, and the guniting thickness on the cast iron mold 30 is required to be not less than 1 mm.
S6, after the step S4, the successfully demolded cast iron blocks fall onto a apron conveyor, the apron conveyor inputs the cast iron blocks into a chute, and finally the cast iron blocks are conveyed to a designated storage yard by a truck. However, after step S4, few of the cast iron pieces were not successfully demolded, and were still transported in the cast iron mold 30 and back along with the crawler conveyor 20. In the return path, the cast iron mold 30 and the cast iron blocks pass through an iron scraping device, a guniting system 40 and a gas baking system 10, the iron scraping device drops the cast iron blocks which are not successfully demoulded in the cast iron mold 30, the cast iron blocks slide into a falling iron collecting vehicle 60 through a collecting hopper, the part of the cast iron blocks are transferred to a truck through an electromagnetic crane, and the truck conveys the cast iron blocks to a designated storage yard.
S7, the cast iron mold 30 after passing through the iron scraping device is completely demolded successfully, the demolded cast iron mold 30 passes through the guniting system 40 and the gas baking system 10 in sequence under the action of the crawler conveyor 20, the guniting system 40 continuously blows guniting to the cast iron mold 30, then the cast iron mold 30 is baked by the gas baking system 10, and the cast iron mold 30 can be recycled, namely the steps S1 to S7 are repeated.
In addition, after the cast iron is cast for 20 minutes, the baking can be completely stopped or one or two groups of the cast iron molds can be adopted to continue baking according to the sticking state of the cast iron molds 30.
Further, the application also provides a guniting material for the cast iron process, and the guniting material comprises the following raw material components in percentage by mass:
graphite: 16% -18%;
lime: 11% -13%;
bentonite: 4% -6%;
water: 63% -66%;
auxiliary materials: 0.5 to 2 percent.
The guniting material is sprayed on the cast iron mold 30 in the iron casting process, the guniting material has strong adhesive force and can be effectively attached to the cast iron mold 30, so that a cast iron block is quickly separated from the cast iron mold 30, the cast iron block cannot fall off due to the fact that the cast iron mold 30 is bonded with the cast iron block is avoided, the film stripping rate of the cast iron mold 30 after passing through the turning device 50 is up to 99%, the cast iron production efficiency is improved, the requirement of safety production is met, the equipment downtime is reduced, the continuous production of an iron casting machine is realized, the cast iron capacity is increased, the safety of operators is ensured, and the economic efficiency and the social efficiency are finally created for enterprises. Particularly, after the guniting material adopts the formula, the adhesion thickness of the guniting material on the cast iron mold 30 can reach about 1.5mm, and the guniting material is uniformly distributed, namely the application ensures that the guniting material has very good cast iron mold adhesion and adsorption uniformity, so that the adhesion thickness and uniformity of the guniting material on the cast iron mold 30 are improved, the separation effect of the cast iron mold 30 and a cast iron block is ensured, the film release rate is improved, and the film release rate is improved to 99% from the existing 94%.
Furthermore, in the guniting material, the auxiliary material can be coal powder or flour or a mixture of the coal powder and the flour, and is used for improving the viscosity and the uniform mixing degree of the guniting material and improving the separation effect of the cast iron mold 30 and the cast iron blocks.
Further, in a preferred embodiment of the guniting material, the mass ratio of each raw material component is as follows: the mass ratio of the graphite is 18%, the mass ratio of the lime is 12%, the mass ratio of the bentonite is 4.5%, the mass ratio of the water is 64%, and the mass ratio of the auxiliary material is 1.5%.
The invention also provides a manufacturing method of the guniting material for the cast iron process, which sequentially comprises the following steps of:
a1, adding water into the stirring tank 71 of the stirring device 70, so that the water capacity in the stirring tank 71 is more than 50% of the capacity of the stirring tank 71, wherein the stirring device 70 further comprises a stirring rod group 72 arranged in the stirring tank 71 and a stirring motor 73 for driving the stirring rod group 72 to rotate. And the volume of the water level of the slurry tank is kept, the water inlet valve is closed when the volume is controlled to be about 10cm-20cm below the water level of the slurry tank, and the water is stopped being added into the stirring tank 71.
And A2, starting the stirring motor 73, and driving the stirring rod group 72 to rotate by the stirring motor 73 to execute stirring operation.
A3, adding water to the stirring tank 71 so that the total mass ratio of the water in the stirring tank 71 becomes 63% to 66% (preferably 64%).
A4, adding graphite in an amount of 16 to 18 mass% (preferably 18 mass%) to the stirring tank 71, and stirring while adding the graphite.
A5, adding 11 to 13 mass percent (preferably 12 mass percent) of lime into the stirring tank 71, and stirring while adding.
A6, adding bentonite in a mass ratio of 4-6% (preferably 4.5%) into the stirring tank 71, and stirring while adding.
A7, adding 0.5-2% (preferably 1.5%) by mass of auxiliary materials into the stirring tank 71, and stirring while adding.
A8, mixing and stirring for 10-20 minutes, preferably 15 minutes, and then the slurry preparation of the pig machine is completed, and the slurry spraying operation can be carried out. Meanwhile, checking and confirming the guniting material in the guniting pool, confirming the guniting condition of the cast iron mold 30 and paying attention to whether the guniting material in the cast iron mold 30 is uniform or not; if the guniting material in the cast iron mold 30 is not uniform, the grouting material nozzle needs to be checked in time to check whether the grouting material is blocked or not, and the grouting material needs to be processed and adjusted in time to check whether the grouting material is uniform or not and whether the cast iron mold 30 is fully covered or not. Firstly, adding graphite into water to ensure sufficient mulling time and improve the high temperature resistance of the slurry; then adding lime, and carrying out chemical reaction on the lime and water so as to be beneficial to uniformly distributing the slurry and keeping the proper pH value of the slurry; adding bentonite, and deeply mixing the bentonite and the components to increase the adhesion of the slurry; finally, the added auxiliary materials are used for adjusting the viscosity of the mixture and the uniform mixing effect.
Preferably, in the step a1, the water capacity in the stirring tank 71 is 50% -60% of the capacity of the stirring tank 71.
Furthermore, after casting two torpedo ladle molten iron, flushing the inner wall of the stirring tank 71 and the guniting system 40 for 5-10 minutes, checking the inlet of the guniting system 40, cleaning impurities in the stirring tank 71 and the guniting pool, and keeping the stirring tank 71 and the guniting pool clean, thereby ensuring the guniting effect and reducing iron blocks falling along the line of the iron casting machine.
Further, the stirring device 70 is arranged in a pulping chamber of the pig machine, and a dust removal device is arranged on the roof of the pulping chamber. As shown in fig. 4, the stirring device 70 is further provided with a feed port 74 communicating with the stirring tank 71, a semicircular collecting cover 75, and a movable cover plate 76, the collecting cover 75 is fixed to the stirring device 70 and covers a part of the upper end of the stirring tank 71, the collecting cover 75 is provided with a notch portion allowing the feed port 74 to be exposed, and the movable cover plate 76 is movably mounted to the stirring device 70 and covers the remaining part of the upper end of the stirring tank 71. The trap cover 75 plays a role of dust prevention, and the removable cover 76 plays a role of dust prevention and sealing.
In conclusion, the present invention effectively overcomes various disadvantages of the prior art and has high industrial utilization value.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (7)
1. The guniting material for the cast iron process is characterized by comprising the following components in parts by weight: the guniting material comprises the following raw material components in percentage by mass:
graphite: 16% -18%;
lime: 11% -13%;
bentonite: 4% -6%;
water: 63% -66%;
auxiliary materials: 0.5 to 2 percent.
2. The gunite material according to claim 1, wherein: the mass ratio of the graphite is 18%, the mass ratio of the lime is 12%, the mass ratio of the bentonite is 4.5%, the mass ratio of the water is 64%, and the mass ratio of the auxiliary material is 1.5%.
3. The manufacturing method of the guniting material for the cast iron process is characterized by comprising the following steps of: the manufacturing method sequentially comprises the following steps:
a1, adding water into a stirring tank of stirring equipment, so that the water capacity in the stirring tank is greater than 50% of the capacity of the stirring tank, wherein the stirring equipment is also provided with a stirring rod group arranged in the stirring tank and a stirring motor for driving the stirring rod group to rotate;
a2, starting a stirring motor, driving a stirring rod group to rotate by the stirring motor, and executing stirring operation;
a3, adding water into the stirring tank to enable the mass ratio of the water in the stirring tank to be 63-66%;
a4, adding 16-18% of graphite by mass in a stirring tank, and stirring while adding;
a5, adding 11-13% by mass of lime into a stirring tank, and stirring while adding;
a6, adding 4-6% of bentonite in mass ratio into a stirring tank, and stirring while adding;
a7, adding 0.5-2% of auxiliary materials by mass into a stirring tank, and stirring while adding;
a8, mixing and stirring for 10-20 minutes.
4. The method of manufacturing according to claim 3, wherein: in the step A1, the water capacity in the stirring tank is 50% -60% of the capacity of the stirring tank.
5. The method of manufacturing according to claim 3, wherein: after casting two torpedo ladle molten iron, washing the inner wall of the stirring tank for 5-10 minutes.
6. The method of manufacturing according to claim 3, wherein: the agitated vessel sets up in the slurrying of pig machine indoor, the roof of slurrying room is provided with dust collecting equipment, still be equipped with on the agitated vessel with communicating charge door, semicircular entrapment cover and removable cover of stirred tank, the entrapment cover is fixed in agitated vessel and covers a part of stirred tank upper end, the entrapment covers and offers the breach portion that allows the charge door to expose, removable cover movably installs in agitated vessel and covers all the other parts of stirred tank upper end.
7. A casting process is characterized in that: the casting process comprises the following steps:
s1, baking the cast iron mold in the pig casting machine;
s2, pouring the molten iron conveyed by the torpedo ladle into a groove of an iron casting machine, and shunting the molten iron and then flowing into an iron casting mold;
s3, conveying the cast iron mold by a crawler conveyor in the pig casting machine, wherein the cast iron mold passes through a cooling chamber in the pig casting machine, and the molten iron in the cast iron mold is cooled into a cast iron block;
s4, conveying the cast iron mold by the crawler conveyor, turning the cast iron mold at the reversing position of the crawler conveyor, and separating the cast iron blocks from the cast iron mold;
s5, the above steps S1 to S4, the gunite system of the pig machine sprays gunite to the cast iron mold, wherein the gunite is the gunite of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010423736.5A CN113680956A (en) | 2020-05-19 | 2020-05-19 | Guniting material for cast iron process, manufacturing method thereof and cast iron process |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010423736.5A CN113680956A (en) | 2020-05-19 | 2020-05-19 | Guniting material for cast iron process, manufacturing method thereof and cast iron process |
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Application publication date: 20211123 |