CN112122600B - Novel ladle cover capable of comprehensively utilizing waste heat - Google Patents
Novel ladle cover capable of comprehensively utilizing waste heat Download PDFInfo
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- CN112122600B CN112122600B CN202011021031.7A CN202011021031A CN112122600B CN 112122600 B CN112122600 B CN 112122600B CN 202011021031 A CN202011021031 A CN 202011021031A CN 112122600 B CN112122600 B CN 112122600B
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- cavity
- main body
- air
- ladle
- burner
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/005—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like with heating or cooling means
- B22D41/01—Heating means
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Abstract
The invention belongs to the technical field of ladle baking devices, and provides a novel ladle cover for comprehensively utilizing waste heat, which comprises a ladle cover main body, wherein a cavity is arranged in the ladle cover main body, and an air inlet and a fuel gas inlet which are communicated with the cavity are formed in the ladle cover main body; the burner is arranged in the middle of the ladle cover main body, one end of the burner is positioned in the cavity, and the other end of the burner extends out of the bottom of the ladle cover main body; the partition board is arranged in the cavity and divides the cavity into an air cavity and a gas cavity, the air cavity is communicated with the air inlet, the gas cavity is communicated with the gas inlet, and the air cavity and the gas cavity are both communicated with the burner; the induced draft cover is arranged on the ladle cover main body and is used for collecting high-temperature flue gas; and the smoke pipeline is arranged in the cavity, and one end of the smoke pipeline is connected with the induced draft cover. Through above-mentioned technical scheme, the problem that roast package ware is not high to the flue gas utilization ratio among the prior art has been solved.
Description
Technical Field
The invention belongs to the technical field of ladle baking devices, and relates to a novel ladle cover capable of comprehensively utilizing waste heat.
Background
The steel ladle is generally required to be baked after being newly built and before being filled with molten steel, the baking of the steel ladle is one of main links in a steelmaking production process, a steel ladle baking device is used for baking the steel ladle, and the performance of the steel ladle baking device has great influence on the tapping temperature of a converter, the steelmaking operation rate, the furnace age and the like. In order to reduce energy consumption, the flue gas is generally adopted to preheat air or coal gas, a common heat accumulating type ladle roaster in the prior art adopts two heat accumulating type burners to supply heat, and the two-position four-way valve is used for reversing, but the ladle roaster has the problem of low utilization rate of the flue gas generated by gas combustion during ladle roasting.
Disclosure of Invention
The invention provides a novel ladle cover for comprehensively utilizing waste heat, which solves the problem that a ladle baking device in the prior art is low in utilization rate of smoke.
The technical scheme of the invention is realized as follows:
a novel bag cover for comprehensively utilizing waste heat comprises:
the inner part of the ladle cover main body is provided with a cavity, and an air inlet and a fuel gas inlet which are communicated with the cavity are arranged on the ladle cover main body;
the burner is arranged in the middle of the ladle cover main body, one end of the burner is positioned in the cavity, and the other end of the burner extends out of the bottom of the ladle cover main body;
the partition plate is arranged in the cavity and divides the cavity into an air cavity and a gas cavity, the air cavity is communicated with the air inlet, the gas cavity is communicated with the gas inlet, and the air cavity and the gas cavity are both communicated with the burner;
the induced draft cover is arranged on the ladle cover main body and is used for collecting high-temperature flue gas;
and the smoke pipeline is arranged in the cavity, and one end of the smoke pipeline is connected with the induced draft cover.
As a further technical solution, the method further comprises:
the induced draft fan is connected with the other end of the flue gas pipeline;
induced air cover, flue gas pipeline and draught fan are two, two the flue gas pipeline sets up respectively air cavity and gas intracavity.
As a further technical scheme, the flue gas pipeline is a coil pipe.
As a further technical solution, the method further comprises:
the check ring is arranged at the bottom of the ladle cover main body, and the outer diameter of the check ring is smaller than the inner diameter of the ladle;
the induced draft cover is arranged on the side wall of the ladle cover main body, and a smoke inlet is reserved between the induced draft cover and the retainer ring.
As a further technical scheme, the top and the side walls of the ladle cover main body are heat-resistant shells, and the bottom of the ladle cover main body is a heat-conducting plate.
As a further technical solution, the method further comprises:
the fins are multiple and are arranged on one surface, far away from the heat-resisting shell, of the heat-conducting plate.
As a further technical scheme, a gap is reserved between the top of the burner and the heat-resistant shell, an annular ring is arranged at the bottom of the heat-resistant shell, the outer diameter of the annular ring is smaller than the inner diameter of the burner, and the annular ring extends into the burner.
As a further technical scheme, the number of the air inlets and the number of the fuel gas inlets are two, the air inlets are communicated through air pipes, and the fuel gas inlets are communicated through fuel gas pipes.
The working principle and the beneficial effects of the invention are as follows:
1. in the invention, a cavity is arranged in a ladle cover main body, the cavity is divided into an air cavity and a fuel gas cavity by a partition board, the air cavity and the fuel gas cavity are respectively communicated with an air inlet and a fuel gas inlet and are both communicated with a burner arranged in the middle of the ladle cover main body, the ladle cover main body is also provided with an air draft cover for collecting flue gas and a flue gas pipeline which is arranged in the cavity and is connected with the air draft cover, air is introduced into the air cavity through the air inlet, fuel gas is introduced into the fuel gas cavity through the fuel gas inlet, the air and the fuel gas are mixed and ignited after entering the burner for carrying out ladle baking, the flue gas generated by the combustion of the air and the fuel gas during the ladle baking is introduced into the flue gas pipeline through the air draft cover, the air and the fuel gas flowing in the cavity are heated through heat exchange, the temperature of the air and the fuel gas is improved, the flue gas generated during the ladle baking can be fully utilized, and the combustion temperature of the fuel gas can be effectively improved, the ladle baking time is shortened, and the fuel gas is saved.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic bottom view of the present invention;
FIG. 3 is a schematic view of the mounting structure of the present invention;
FIG. 4 is a schematic view of a flue gas duct configuration;
FIG. 5 is a schematic view of the right half section of the present invention;
FIG. 6 is a schematic view of a half-section of the rear portion of the present invention;
in the figure: the novel energy-saving smoke-exhausting and heat-insulating steel ladle comprises a ladle cover main body 1, a heat-resisting shell 1-1, a heat-conducting plate 1-2, burners 2, a partition plate 3, an induced draft cover 4, a smoke inlet 4-1, a smoke pipeline 5, an induced draft fan 6, a check ring 7, fins 8, an annular ring 9, an air pipe 10, a gas pipe 11 and a steel ladle 12.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in the figures 1-6 of the drawings,
a novel bag cover for comprehensively utilizing waste heat comprises:
the inner part of the bag cover main body 1 is provided with a cavity, and an air inlet and a fuel gas inlet which are communicated with the cavity are arranged on the bag cover main body;
the burner 2 is arranged in the middle of the ladle cover main body 1, one end of the burner is positioned in the cavity, and the other end of the burner extends out of the bottom of the ladle cover main body 1;
the partition plate 3 is arranged in the cavity and divides the cavity into an air cavity and a fuel gas cavity, the air cavity is communicated with the air inlet, the fuel gas cavity is communicated with the fuel gas inlet, and the air cavity and the fuel gas cavity are both communicated with the burner 2;
the induced draft cover 4 is arranged on the ladle cover main body 1 and used for collecting high-temperature flue gas;
and the smoke pipeline 5 is arranged in the cavity, and one end of the smoke pipeline is connected with the induced draft cover 4.
In the embodiment, the bag cover main body 1 is internally provided with a cavity which is divided into an air cavity and a fuel gas cavity by a partition plate 3, the air cavity and the fuel gas cavity are respectively communicated with an air inlet and a fuel gas inlet and are both communicated with a burner 2 arranged at the middle part of the bag cover main body 1, the bag cover main body 1 is also provided with an air induction cover 4 for collecting flue gas and a flue gas pipeline 5 which is arranged in the cavity and is connected with the air induction cover 4, air is introduced into the air cavity through the air inlet, fuel gas is introduced into the fuel gas cavity through the fuel gas inlet, the air and the fuel gas are mixed and ignited for baking the bag after entering the burner 2, the flue gas generated by the combustion of the air and the fuel gas is introduced into the flue gas pipeline 5 through the air induction cover 4 during the bag baking, the air and the fuel gas flowing in the cavity are heated through heat exchange, the temperature of the air and the fuel gas is improved, the flue gas generated during the bag baking can be fully utilized, and the combustion temperature of the fuel gas can be effectively improved, the ladle baking time is shortened, and the fuel gas is saved.
Further, still include:
the induced draft fan 6 is connected with the other end of the flue gas pipeline 5;
the induced draft housing 4, flue gas pipeline 5 and draught fan 6 are two, and two flue gas pipelines 5 set up respectively in air cavity and gas intracavity.
In this embodiment, flue gas pipeline 5's the other end is connected with draught fan 6, carries out the flue gas extraction through the power of draught fan 6, can guarantee the effect of collecting of flue gas, and draught fan 4, flue gas pipeline 5 and draught fan 6 are two, and two flue gas pipelines 5 are located air chamber and gas intracavity respectively, and two branch roads are worked alone, and convenient control also can be better preheats air and gas.
Further, the flue gas duct 5 is a coil pipe.
In this embodiment, flue gas pipeline 5 is the coil pipe, can increase the distance that the flue gas flows in flue gas pipeline 5, and then increases the residence time of flue gas in flue gas pipeline 5 to the realization is to the abundant heating of gas and air.
Further, still include:
the retainer ring 7 is arranged at the bottom of the ladle cover main body 1, and the outer diameter of the retainer ring 7 is smaller than the inner diameter of the ladle 12;
the induced draft cover 4 is arranged on the side wall of the ladle cover main body 1, and a smoke inlet 4-1 is reserved between the induced draft cover and the retainer ring 7.
In the embodiment, the retaining ring 7 is arranged at the bottom of the ladle cover main body 1, the induced draft cover 4 is arranged on the side wall of the ladle cover main body 1, the smoke inlet 4-1 is reserved between the induced draft cover 4 and the retaining ring 7, the retaining ring 7 extends into the ladle 12 during ladle baking, the induced draft cover 4 is sealed with the outer wall of the ladle 12, smoke enters the induced draft cover 4 through the smoke inlet 4-1 formed by the gap between the retaining ring 7 and the inner wall of the ladle 12, and the smoke is sucked into the induced draft cover 4 from bottom to top along the wall of the ladle 12 during collection through the structure, so that the smoke collection effect is better, and the influence on the flame of the ladle can be reduced.
Furthermore, the top and the side wall of the ladle cover main body 1 are heat-resistant shells 1-1, and the bottom of the ladle cover main body 1 is a heat-conducting plate 1-2.
In the embodiment, the top and the side wall of the ladle cover main body 1 are heat-resistant shells 1-1, the bottom is a heat-conducting plate 1-2, and when the ladle is baked, the residual heat of the ladle is conducted into the cavity through the heat-conducting plate 1-2 to heat air and fuel gas, so that the residual heat utilization of the ladle is improved, and the preheating effect of the air and the fuel gas is improved.
Further, still include:
the heat-conducting plate 1-2 is provided with a plurality of fins 8 which are arranged on one side of the heat-conducting plate 1-1 far away from the heat-resisting shell 1-1.
In this embodiment, a plurality of fins 8 are arranged on the side of the heat-conducting plate 1-2 away from the heat-resisting shell 1-1, and the heat-conducting area is increased through the plurality of fins 8, so that the heat-conducting effect is increased, the heat-transferring efficiency is improved, and the preheating of air and fuel gas is more sufficient.
Furthermore, a gap is reserved between the top of the burner 2 and the heat-resistant shell 1-1, an annular ring 9 is arranged at the bottom of the heat-resistant shell 1-1, the outer diameter of the annular ring 9 is smaller than the inner diameter of the burner 2, and the annular ring 9 extends into the burner 2.
In this embodiment, a gap is left between the top of the burner 2 and the heat-resistant casing 1-1, the bottom of the heat-resistant casing 1-1 is provided with the annular ring 9, the outer diameter of the annular ring 9 is smaller than the inner diameter of the burner 2, the annular ring 9 extends into the burner 2, and a channel for air and gas to enter the burner 2 is formed between the annular ring 9 and the burner 2, so that the circulation of gas is ensured, the mixing of air and gas in the cavity is reduced, and the safety is ensured.
Further, air intlet and gas import are two, and two air intlets pass through air hose 10 intercommunication, and two gas imports pass through gas pipe 11 intercommunication.
In this embodiment, air intlet and gas inlet are two, and two air intlets pass through air pipe (10) intercommunication, and two gas inlets pass through gas pipe (11) intercommunication, and two air intlets and two gas inlets can increase the volume that lets in of air and gas, promote combustion efficiency.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. A novel ladle cover for comprehensively utilizing waste heat is characterized by comprising:
the inner part of the ladle cover main body (1) is provided with a cavity, and an air inlet and a fuel gas inlet which are communicated with the cavity are arranged on the cavity;
the burner (2) is arranged in the middle of the ladle cover main body (1), one end of the burner is positioned in the cavity, and the other end of the burner extends out of the bottom of the ladle cover main body (1);
the partition plate (3) is arranged in the cavity and divides the cavity into an air cavity and a fuel gas cavity, the air cavity is communicated with the air inlet, the fuel gas cavity is communicated with the fuel gas inlet, and the air cavity and the fuel gas cavity are both communicated with the burner (2);
the induced draft hood (4) is arranged on the ladle cover main body (1) and is used for collecting high-temperature flue gas;
the smoke pipeline (5) is arranged in the cavity, one end of the smoke pipeline is connected with the induced draft cover (4), and the smoke pipeline (5) is a coil pipe;
the induced draft fan (6) is connected with the other end of the flue gas pipeline (5);
the two draught fans (4), the two flue gas pipelines (5) and the two draught fans (6) are arranged in the air cavity and the gas cavity respectively;
the top and the side wall of the ladle cover main body (1) are heat-resistant shells (1-1), the bottom of the ladle cover main body (1) is a heat-conducting plate (1-2),
a gap is reserved between the top of the burner (2) and the heat-resistant shell (1-1), an annular ring (9) is arranged at the bottom of the heat-resistant shell (1-1), the outer diameter of the annular ring (9) is smaller than the inner diameter of the burner (2), and the annular ring (9) extends into the burner (2).
2. The novel bag cover for comprehensively utilizing waste heat as claimed in claim 1, further comprising:
the check ring (7) is arranged at the bottom of the ladle cover main body (1), and the outer diameter of the check ring (7) is smaller than the inner diameter of the ladle (12);
the induced draft cover (4) is arranged on the side wall of the ladle cover main body (1), and a smoke inlet (4-1) is reserved between the induced draft cover and the retainer ring (7).
3. The novel bag cover for comprehensively utilizing waste heat as claimed in claim 1, further comprising:
a plurality of fins (8) are arranged on one surface of the heat-conducting plate (1-2) far away from the heat-resisting shell (1-1).
4. The novel ladle cover for comprehensively utilizing the waste heat as claimed in claim 1, wherein the number of the air inlets and the number of the gas inlets are two, the two air inlets are communicated through an air pipe (10), and the two gas inlets are communicated through a gas pipe (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011021031.7A CN112122600B (en) | 2020-09-25 | 2020-09-25 | Novel ladle cover capable of comprehensively utilizing waste heat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011021031.7A CN112122600B (en) | 2020-09-25 | 2020-09-25 | Novel ladle cover capable of comprehensively utilizing waste heat |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112122600A CN112122600A (en) | 2020-12-25 |
| CN112122600B true CN112122600B (en) | 2022-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011021031.7A Active CN112122600B (en) | 2020-09-25 | 2020-09-25 | Novel ladle cover capable of comprehensively utilizing waste heat |
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|---|---|---|---|---|
| CN2301277Y (en) * | 1997-09-08 | 1998-12-23 | 上海五钢(集团)有限公司 | Metallurgical ladle roasting device |
| KR20040011716A (en) * | 2002-07-30 | 2004-02-11 | 주식회사 포스코 | Separation type burner for preheating tundish |
| CN201124229Y (en) * | 2008-05-20 | 2008-10-01 | 江都市高新冶金设备有限公司 | Self-heating exchange roaster |
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| CN207103821U (en) * | 2017-07-26 | 2018-03-16 | 秦皇岛秦冶重工有限公司 | Self-preheating type ladle baking facility |
| CN207214046U (en) * | 2017-07-28 | 2018-04-10 | 南京净环热冶金工程有限公司 | A kind of novel energy-conserving ladle baking facilities |
| CN109405569A (en) * | 2018-12-04 | 2019-03-01 | 天津博昶节能科技发展有限公司 | A kind of flue gas recovery device for Ladle-casting apparatus |
| CN209021229U (en) * | 2018-08-28 | 2019-06-25 | 江苏恒立冶金设备有限公司 | A kind of vertical ladle baking facility |
| JP2019166530A (en) * | 2018-03-22 | 2019-10-03 | 日本製鉄株式会社 | Preheating method for ladle, and preheating cover for ladle |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007183072A (en) * | 2006-01-10 | 2007-07-19 | Daido Steel Co Ltd | Heating structure and heating method for molten metal vessel |
| CN202763027U (en) * | 2012-10-17 | 2013-03-06 | 重庆钢铁(集团)有限责任公司 | Hot air type steel ladle roasting cover |
| CN207668492U (en) * | 2017-12-11 | 2018-07-31 | 中钢集团邢台机械轧辊有限公司 | A kind of pre-heated steel ladle roaster |
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2020
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Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2301277Y (en) * | 1997-09-08 | 1998-12-23 | 上海五钢(集团)有限公司 | Metallurgical ladle roasting device |
| KR20040011716A (en) * | 2002-07-30 | 2004-02-11 | 주식회사 포스코 | Separation type burner for preheating tundish |
| CN201124229Y (en) * | 2008-05-20 | 2008-10-01 | 江都市高新冶金设备有限公司 | Self-heating exchange roaster |
| CN201760588U (en) * | 2010-08-18 | 2011-03-16 | 洛阳盛鑫工矿设备有限公司 | Self-preheating steel ladle cover |
| CN206882775U (en) * | 2017-05-10 | 2018-01-16 | 中钢集团鞍山热能研究院有限公司 | It is a kind of from heat accumulating type Ladle Furnace Heating And Drying Equipments |
| CN207103821U (en) * | 2017-07-26 | 2018-03-16 | 秦皇岛秦冶重工有限公司 | Self-preheating type ladle baking facility |
| CN207214046U (en) * | 2017-07-28 | 2018-04-10 | 南京净环热冶金工程有限公司 | A kind of novel energy-conserving ladle baking facilities |
| JP2019166530A (en) * | 2018-03-22 | 2019-10-03 | 日本製鉄株式会社 | Preheating method for ladle, and preheating cover for ladle |
| CN209021229U (en) * | 2018-08-28 | 2019-06-25 | 江苏恒立冶金设备有限公司 | A kind of vertical ladle baking facility |
| CN109405569A (en) * | 2018-12-04 | 2019-03-01 | 天津博昶节能科技发展有限公司 | A kind of flue gas recovery device for Ladle-casting apparatus |
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| CN112122600A (en) | 2020-12-25 |
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