CN212620102U - Combustion-supporting air preheating device of ignition furnace of sintering machine - Google Patents
Combustion-supporting air preheating device of ignition furnace of sintering machine Download PDFInfo
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- CN212620102U CN212620102U CN202021132541.7U CN202021132541U CN212620102U CN 212620102 U CN212620102 U CN 212620102U CN 202021132541 U CN202021132541 U CN 202021132541U CN 212620102 U CN212620102 U CN 212620102U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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Abstract
The utility model relates to a combustion-supporting wind preheating device of sintering machine ignition furnace, including preheating box, combustion-supporting wind inlet line and combustion-supporting wind air-out pipeline, its characterized in that, preheating box constitute by air inlet square chest, air-out square chest, connection bellows and multirow connecting tube, connection bellows be flat cuboid, the upper portion intercommunication of one end and air inlet square chest, the other end and air-out square chest, multirow connecting tube one end and the lower part intercommunication of air inlet square chest, the other end and the lower part intercommunication of air-out square chest, combustion-supporting wind inlet line set up the top at air inlet square chest, combustion-supporting wind air-out pipeline set up the top at air-out square chest. The utility model has the advantages that: the temperature of combustion-supporting air is higher than 100 ℃, the temperature is improved by more than 60 ℃ compared with the prior art, the gas consumption is effectively reduced, the installation is convenient and quick, the replacement is easy, and the maintenance is facilitated.
Description
Technical Field
The utility model belongs to the technical field of ferrous metallurgy sintering production, concretely relates to combustion-supporting wind preheating device of sintering machine ignition furnace.
Background
When the ignition furnace of the sintering machine is in operation, coal gas and combustion-supporting air are combusted according to the proportion of 1:4.7, the surface layer of the sinter is ignited by flame, and the temperature of the ignition furnace is around 1050 ℃ for a long time. Because the temperature of the combustion-supporting air is synchronous with the room temperature, the temperature of the combustion-supporting air changes along with the seasonal change, and the gas consumption is further influenced. In order to reduce the gas consumption, the original preheating device on site is that a combustion-supporting air cold air inlet pipeline penetrates through the tail end of the top of the ignition furnace and is communicated with one end of a preheating box body, a combustion-supporting air hot air outlet pipeline penetrates through the top starting end of the ignition furnace and is communicated with the other end of the preheating box body, the temperature of combustion-supporting air is increased through preheating of the internal temperature of the ignition furnace, and then the gas consumption is reduced. However, the prior preheating device adopts a rectangular box body, the contact area of the rectangular box body for receiving heat radiation is small, the heating efficiency is low, the temperature increase of combustion-supporting air is limited and is only about 40 ℃, the gas consumption is reduced less, and the effect is not obvious.
Disclosure of Invention
The utility model aims at providing a sintering machine ignition furnace combustion-supporting wind preheating device, the device can improve heat exchange efficiency, makes combustion-supporting wind temperature > 100 ℃, effectively reduces ignition furnace gas consumption.
The purpose of the utility model is realized by the following technical scheme:
the utility model discloses a combustion-supporting wind preheating device of sintering machine ignition furnace, including preheating box, combustion-supporting wind inlet line and combustion-supporting wind air-out pipeline, its characterized in that, preheating box constitute by air inlet square chest, air-out square chest, connection bellows and multirow connecting tube, connection bellows be flat cuboid bellows, the upper portion intercommunication of one end and air inlet square chest, the other end communicates with the upper portion of air-out square chest, multirow connecting tube one end and the lower part intercommunication of air inlet square chest, the other end communicates with the lower part of air-out square chest, combustion-supporting wind inlet line set up the top at air inlet square chest, combustion-supporting wind air-out pipeline set up the top at air-out square chest.
As a further optimization of the invention, the plurality of rows of connecting pipelines are 2-4 rows of connecting pipelines, and the connecting pipelines in each row are staggered.
The utility model discloses because connect bellows and high temperature resistant seamless steel pipe and accept the superficial area increase of thermal radiation a lot, so improved combustion-supporting wind temperature by a wide margin, combustion-supporting wind temperature > 100 ℃, improve more than 60 ℃ than prior art.
Compared with the prior art, the utility model has the advantages that:
1) because the surface area of the utility model receiving the heat radiation is greatly increased, the temperature of the combustion-supporting air is more than 100 ℃, the temperature is increased by more than 60 ℃ compared with the prior art, and the gas consumption can be effectively reduced;
2) the utility model discloses simple to operate is swift, and is easily changed, is favorable to overhauing and maintains.
Drawings
Fig. 1 is a schematic side view of the present invention.
Fig. 2 is a top view of fig. 1.
Fig. 3 is a view a-a of fig. 1.
Fig. 4 is a schematic perspective view of the present invention.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1-4, the utility model discloses a combustion-supporting wind preheating device of sintering machine ignition furnace, including preheating the box, combustion-supporting wind inlet line 1 and combustion-supporting wind air-out pipeline 6, its characterized in that, preheat the box by air inlet square chest 2, air-out square chest 5, connect bellows 4 and multirow connecting tube to constitute, connection bellows 4 be flat cuboid, one end and the upper portion intercommunication of air inlet square chest 2, the other end and the upper portion intercommunication of air-out square chest 5, multirow connecting tube one end and the lower part intercommunication of air inlet square chest 2, the other end and the lower part intercommunication of air-out square chest 5, combustion-supporting wind inlet line 1 set up at the top of air inlet square chest 2, combustion-supporting wind air-out pipeline 6 set up at the top of air-out square chest 5.
The pipe diameters of the combustion-supporting air inlet pipeline 1 and the combustion-supporting air outlet pipeline 6 are consistent, and the external dimensions of the air inlet square box 2 and the air outlet square box 5 are consistent; the upper part between the air inlet square box 2 and the air outlet square box 5 is welded with an air box 4, two welded ends of the connecting air box 4 are communicated with the air inlet square box 2 and the air outlet square box 5, the flat connecting air box 4 is 1/5 which is about the thickness of the air inlet square box 2; three rows of high-temperature-resistant seamless steel pipes 3 are welded between the air inlet square box 2 and the air outlet square box 5 below the connecting air box 4, the high-temperature-resistant seamless steel pipes 3 are communicated with the air inlet square box 2 and the air outlet square box 5, the seamless steel pipes 3 are phi 54 x 3.5 seamless steel pipes, and the three rows of pipelines are arranged in a staggered mode.
The utility model discloses a working process:
combustion-supporting cold air enters the air inlet square box 2 through the combustion-supporting air inlet pipeline 1 and then enters the connecting air box 4 and the high-temperature-resistant seamless steel pipe 3, heat radiation is carried out on the connecting air box 4 and the high-temperature-resistant seamless steel pipe 3 by high temperature in the ignition furnace, the passing combustion-supporting cold air is heated, the heated combustion-supporting hot air enters the combustion-supporting air outlet square box 5 and then enters the coal gas combustion-supporting pipeline through the combustion-supporting air outlet pipeline 6 to be mixed and combusted with coal gas. Greatly improves the temperature of combustion-supporting air, the temperature of the combustion-supporting air is more than 100 ℃, is improved by more than 60 ℃ compared with the prior art, and effectively reduces the coal gas consumption.
Claims (2)
1. The utility model provides a combustion-supporting wind preheating device of sintering machine ignition furnace, is including preheating box, combustion-supporting wind inlet line and combustion-supporting wind air-out pipeline, its characterized in that, preheat the box and constitute by air inlet square chest, air-out square chest, connection bellows and multirow connecting tube, connection bellows be flat cuboid, the upper portion intercommunication of one end and air inlet square chest, the other end and the upper portion intercommunication of air-out square chest, multirow connecting tube one end and the lower part intercommunication of air inlet square chest, the lower part intercommunication of the other end and air-out square chest, combustion-supporting wind inlet line set up the top at air inlet square chest, combustion-supporting wind air-out pipeline set up the top at air-out square chest.
2. The preheating device for the combustion-supporting air of the ignition furnace of the sintering machine as claimed in claim 1, wherein the plurality of rows of connecting pipelines are 2-4 rows of connecting pipelines, and the rows of connecting pipelines are staggered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021132541.7U CN212620102U (en) | 2020-06-18 | 2020-06-18 | Combustion-supporting air preheating device of ignition furnace of sintering machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021132541.7U CN212620102U (en) | 2020-06-18 | 2020-06-18 | Combustion-supporting air preheating device of ignition furnace of sintering machine |
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| Publication Number | Publication Date |
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| CN212620102U true CN212620102U (en) | 2021-02-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021132541.7U Active CN212620102U (en) | 2020-06-18 | 2020-06-18 | Combustion-supporting air preheating device of ignition furnace of sintering machine |
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| CN (1) | CN212620102U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114251940A (en) * | 2021-12-16 | 2022-03-29 | 中冶长天国际工程有限责任公司 | Sintering ignition furnace |
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2020
- 2020-06-18 CN CN202021132541.7U patent/CN212620102U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114251940A (en) * | 2021-12-16 | 2022-03-29 | 中冶长天国际工程有限责任公司 | Sintering ignition furnace |
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