CN105444583A - Smelting furnace chimney residual heat utilizing device - Google Patents
Smelting furnace chimney residual heat utilizing device Download PDFInfo
- Publication number
- CN105444583A CN105444583A CN201510958228.6A CN201510958228A CN105444583A CN 105444583 A CN105444583 A CN 105444583A CN 201510958228 A CN201510958228 A CN 201510958228A CN 105444583 A CN105444583 A CN 105444583A
- Authority
- CN
- China
- Prior art keywords
- smelting furnace
- chimney
- mixing chamber
- heat
- valve body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L15/00—Heating of air supplied for combustion
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N1/00—Regulating fuel supply
- F23N1/02—Regulating fuel supply conjointly with air supply
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D99/00—Subject matter not provided for in other groups of this subclass
- F27D99/0001—Heating elements or systems
- F27D99/0033—Heating elements or systems using burners
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L2900/00—Special arrangements for supplying or treating air or oxidant for combustion; Injecting inert gas, water or steam into the combustion chamber
- F23L2900/15043—Preheating combustion air by heat recovery means located in the chimney, e.g. for home heating devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2239/00—Fuels
- F23N2239/04—Gaseous fuels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D99/00—Subject matter not provided for in other groups of this subclass
- F27D99/0001—Heating elements or systems
- F27D99/0033—Heating elements or systems using burners
- F27D2099/0053—Burner fed with preheated gases
- F27D2099/0056—Oxidant
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/10—Reduction of greenhouse gas [GHG] emissions
- Y02P10/143—Reduction of greenhouse gas [GHG] emissions of methane [CH4]
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Environmental & Geological Engineering (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
Abstract
The invention provides a smelting furnace chimney residual heat utilizing device. The smelting furnace chimney residual heat utilizing device comprises a smelting furnace and further comprises an oxygen and fuel gas mixing chamber, an air pipe, a natural gas pipe, a gas outlet pipe, a heat collecting pipe, a heat collecting unit and a heat return pipe, wherein a chimney is connected to the smelting furnace; one side of the oxygen and fuel gas mixing chamber is connected with the air pipe and the natural gas pipe, and the other side of the oxygen and fuel gas mixing chamber is connected with the gas outlet pipe; one end of the heat collecting pipe is connected with the air pipe through a first valve body, and the other end of the heat collecting pipe is connected with a gas inlet of the heat collecting unit; one end of the heat return pipe is connected with the oxygen and fuel gas mixing chamber, and the other end of the heat return pipe is connected with a gas outlet of the heat collecting unit; and the heat collecting unit is positioned on the chimney, and the other end of the gas outlet pipe is connected with the smelting furnace. By adopting the technical scheme, air is heated by the heat collecting unit before entering the smelting furnace and then is mixed with natural gas, the flow of heated air is adjustable, the combustion of natural gas is more thorough, smoke residual heat is effectively utilized, and the cost is saved.
Description
Technical field
The invention belongs to field of smelting, especially a kind of smelting furnace chimney surplus heat utilization device.
Background technology
Adopt natural gas when being heating raw materials smelting furnace, air enter body of heater before temperature be approximately 60 DEG C, natural gas temperature is lower, and both mixed temperature are greatly about 30-40 DEG C, and the utilization rate of natural gas is not high.In prior art, the flue-gas temperature that smelting furnace enters chimney is usually very high, and this flue gas is directly discharging after simple transition processing, and a large amount of heat energy wastes thereupon, and enterprise's production cost is uprised.Some off-gas recovery utilizes device directly to be drawn by flue gas, and equipment is changed greatly, it is high to invest.
Summary of the invention
In view of this, the present invention is intended to propose a kind of smelting furnace chimney surplus heat utilization device, carries out less change to existing equipment, to solve the problem of high-temperature flue gas waste heat waste in prior art.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of smelting furnace chimney surplus heat utilization device, comprises smelting furnace, described smelting furnace is connected with chimney, also comprise the right mixing chamber of oxygen, air hose, natural gas tube, escape pipe, thermal-collecting tube, heat collection unit and product heat cal rod; Described oxygen right mixing chamber side is connected with described air hose and natural gas tube, and opposite side is connected with described escape pipe; Described thermal-collecting tube one end is connected with described air hose by the first valve body, and the other end is connected with the air inlet of described heat collection unit; Described product heat cal rod one end is connected with the right mixing chamber of described oxygen, and the other end is connected with the gas outlet of described heat collection unit; Described heat collection unit is positioned on chimney, and the other end of described escape pipe is connected with smelting furnace.
Further, the right mixing chamber of described oxygen, thermal-collecting tube and product heat cal rod are equipped with at least one temperature sensor, regulate for auxiliary flow.
Further, described natural gas tube is provided with the second valve body, and described escape pipe is provided with the 3rd valve body.
Further, also comprise flow controlling unit, described first valve body, the second valve body are all connected with described flow controlling unit with the 3rd valve body.
Further, the right mixing chamber of described oxygen is arranged lower than described heat collection unit.
Further, described heat collection unit comprises several heating tubes, and several heating tubes described are vertically arranged, arrange around chimney circumference array, adjacent two heating tubes are connected by U-tube, form a pipeline, described pipeline one end is connected with described air inlet, and gas outlet described in the other end is connected.
Relative to prior art, a kind of smelting furnace chimney surplus heat utilization device of the present invention has following advantage: air heated through heat collection unit before entering smelting furnace, mix with natural gas again, the flow adding hot-air is adjustable, make combustion of natural gas more abundant, effectively make use of fume afterheat, save cost.
Accompanying drawing explanation
The accompanying drawing forming a part of the present invention is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is general illustration of the present invention;
Fig. 2 is heating tube schematic diagram of the present invention.
In figure: the right mixing chamber of 1-oxygen, 2-air hose, 21-first valve body, 3-natural gas tube, 31-second valve body, 4-escape pipe, 41-the 3rd valve body, 5-thermal-collecting tube, 6-heat collection unit, 7-product heat cal rod, 61-air inlet, 62-gas outlet, 63-heating tube, 8-temperature sensor, 9-flow controlling unit, 10-smelting furnace, 11-chimney.
Detailed description of the invention
It should be noted that, when not conflicting, the embodiment in the present invention and the feature in embodiment can combine mutually.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.In addition, term " first ", " second " etc. only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, one or more these features can be expressed or impliedly be comprised to the feature being limited with " first ", " second " etc.In describing the invention, except as otherwise noted, the implication of " multiple " is two or more.
In describing the invention, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood by concrete condition.
Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
As shown in Figure 1, a kind of smelting furnace chimney surplus heat utilization device, comprises smelting furnace 10, smelting furnace 10 is connected with chimney 11, also comprises the right mixing chamber 1 of oxygen, air hose 2, natural gas tube 3, escape pipe 4, thermal-collecting tube 5, heat collection unit 6 and product heat cal rod 7; Oxygen right mixing chamber 1 side is connected with air hose 2 and natural gas tube 3, and opposite side is connected with escape pipe 4; Thermal-collecting tube 5 one end is connected with air hose 2 by the first valve body 21, and the other end is connected with the air inlet 61 of heat collection unit 6; Product heat cal rod 7 one end is connected with the right mixing chamber 1 of oxygen, and the other end is connected with the gas outlet 62 of heat collection unit 6, and heat collection unit 6 is positioned on chimney 11, and the other end of escape pipe 4 is connected with smelting furnace 10.
The right mixing chamber 1 of oxygen, thermal-collecting tube 5 and product heat cal rod 7 are equipped with at least one temperature sensor 8.
Natural gas tube 3 is provided with the second valve body 31, and escape pipe 4 is provided with the 3rd valve body 41.
Also comprise flow controlling unit 9, the first valve body 21, second valve body 31 is all connected with flow controlling unit 9 with the 3rd valve body 41.
The right mixing chamber 1 of oxygen is arranged lower than heat collection unit 6, heat collection unit 6 comprises several heating tubes 63, several heating tubes 63 are vertically arranged, arrange around chimney 10 circumference array, adjacent two heating tubes 63 are connected by U-tube, form a pipeline, described pipeline one end is connected with described air inlet (61), and gas outlet described in the other end (62) are connected.
Air first entered heat collection unit 6 via thermal-collecting tube 5 before entering smelting furnace 11, entered the right mixing chamber 1 of oxygen again and mixed with natural gas, finally enter smelting furnace by escape pipe 4 after being heated to 100-120 DEG C via product heat cal rod 7.By controlling the heating ratio of the first valve body 21 adjustable air, namely regulate air to enter the ratio of thermal-collecting tube 5, the air do not heated directly enters the right mixing chamber 1 of oxygen, makes combustion of natural gas more abundant, effectively make use of fume afterheat, saved cost.The flow of natural gas is regulated by the second valve body 31, and the flow of mist is regulated by the 3rd valve body 41.The right mixing chamber 1 of oxygen, thermal-collecting tube 5 and product heat cal rod 7 are equipped with temperature sensor 8, in order to auxiliary adjustment first valve body 21.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. a smelting furnace chimney surplus heat utilization device, comprise smelting furnace (10), described smelting furnace (10) is connected with chimney (11), it is characterized in that: also comprise the right mixing chamber of oxygen (1), air hose (2), natural gas tube (3), escape pipe (4), thermal-collecting tube (5), heat collection unit (6) and product heat cal rod (7); The right mixing chamber of described oxygen (1) side is connected with described air hose (2) and natural gas tube (3), and opposite side is connected with described escape pipe (4); Described thermal-collecting tube (5) one end is connected with described air hose (2) by the first valve body (21), and the other end is connected with the air inlet (61) of described heat collection unit (6); Described product heat cal rod (7) one end is connected with the right mixing chamber of described oxygen (1), and the other end is connected with the gas outlet (62) of described heat collection unit (6); Described heat collection unit (6) is positioned on chimney (11), and the other end of described escape pipe (4) is connected with smelting furnace (10).
2. a kind of smelting furnace chimney surplus heat utilization device according to claim 1, is characterized in that: the right mixing chamber of described oxygen (1), thermal-collecting tube (5) and product heat cal rod (7) are equipped with at least one temperature sensor (8).
3. a kind of smelting furnace chimney surplus heat utilization device according to claim 1, it is characterized in that: described natural gas tube (3) is provided with the second valve body (31), described escape pipe (4) is provided with the 3rd valve body (41).
4. a kind of smelting furnace chimney surplus heat utilization device according to claim 3, it is characterized in that: also comprise flow controlling unit (9), described first valve body (21), the second valve body (31) are all connected with described flow controlling unit (9) with the 3rd valve body (41).
5. a kind of smelting furnace chimney surplus heat utilization device according to claim 4, is characterized in that: the right mixing chamber of described oxygen (1) is arranged lower than described heat collection unit (6).
6. a kind of smelting furnace chimney surplus heat utilization device according to any one of claim 1-5, it is characterized in that: described heat collection unit (6) comprises several heating tubes (63), described several heating tubes (63) are vertically arranged, arrange around chimney (10) circumference array, adjacent two heating tubes (63) are connected by U-tube, form a pipeline, described pipeline one end is connected with described air inlet (61), and gas outlet described in the other end (62) are connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510958228.6A CN105444583A (en) | 2015-12-17 | 2015-12-17 | Smelting furnace chimney residual heat utilizing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510958228.6A CN105444583A (en) | 2015-12-17 | 2015-12-17 | Smelting furnace chimney residual heat utilizing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105444583A true CN105444583A (en) | 2016-03-30 |
Family
ID=55555066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510958228.6A Pending CN105444583A (en) | 2015-12-17 | 2015-12-17 | Smelting furnace chimney residual heat utilizing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105444583A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007023238A1 (en) * | 2005-08-25 | 2007-03-01 | L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Method of pre-heating fuel and comburent for oxy-burners, using combustion air pre-heating installations |
| CN102418937A (en) * | 2011-11-01 | 2012-04-18 | 德化县兰星自动化工程有限公司 | Combustion air and natural gas linear proportion control system for ceramic kiln |
| CN202884954U (en) * | 2012-07-05 | 2013-04-17 | 中山市意利克机械设备有限公司 | Chimney waste heat recovery unit |
| CN103486871A (en) * | 2013-09-25 | 2014-01-01 | 宁波佳比佳工贸有限公司 | Melting furnace chimney with waste heat recovery structure |
| JP2014048020A (en) * | 2012-09-04 | 2014-03-17 | Chugai Ro Co Ltd | Continuous type heating furnace |
| CN205425857U (en) * | 2015-12-17 | 2016-08-03 | 天津华北集团铜业有限公司 | Smelting furnace waste heat utilization equipment |
-
2015
- 2015-12-17 CN CN201510958228.6A patent/CN105444583A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007023238A1 (en) * | 2005-08-25 | 2007-03-01 | L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Method of pre-heating fuel and comburent for oxy-burners, using combustion air pre-heating installations |
| CN102418937A (en) * | 2011-11-01 | 2012-04-18 | 德化县兰星自动化工程有限公司 | Combustion air and natural gas linear proportion control system for ceramic kiln |
| CN202884954U (en) * | 2012-07-05 | 2013-04-17 | 中山市意利克机械设备有限公司 | Chimney waste heat recovery unit |
| JP2014048020A (en) * | 2012-09-04 | 2014-03-17 | Chugai Ro Co Ltd | Continuous type heating furnace |
| CN103486871A (en) * | 2013-09-25 | 2014-01-01 | 宁波佳比佳工贸有限公司 | Melting furnace chimney with waste heat recovery structure |
| CN205425857U (en) * | 2015-12-17 | 2016-08-03 | 天津华北集团铜业有限公司 | Smelting furnace waste heat utilization equipment |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160330 |