CN110873531A - Gas type energy-saving crucible furnace - Google Patents
Gas type energy-saving crucible furnace Download PDFInfo
- Publication number
- CN110873531A CN110873531A CN201911314090.0A CN201911314090A CN110873531A CN 110873531 A CN110873531 A CN 110873531A CN 201911314090 A CN201911314090 A CN 201911314090A CN 110873531 A CN110873531 A CN 110873531A
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- Prior art keywords
- heat storage
- way reversing
- storage chamber
- reversing valve
- gas
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Links
- 238000005338 heat storage Methods 0.000 claims abstract description 52
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000003546 flue gas Substances 0.000 claims abstract description 27
- 239000007789 gas Substances 0.000 claims abstract description 26
- 239000000446 fuel Substances 0.000 claims abstract description 17
- 239000000779 smoke Substances 0.000 claims abstract description 17
- 230000001172 regenerating effect Effects 0.000 claims abstract description 7
- 239000002737 fuel gas Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000004134 energy conservation Methods 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 125000004122 cyclic group Chemical group 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 238000003912 environmental pollution Methods 0.000 abstract description 3
- 229910052782 aluminium Inorganic materials 0.000 description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 8
- 230000008018 melting Effects 0.000 description 7
- 238000002844 melting Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/08—Details peculiar to crucible or pot furnaces
- F27B14/14—Arrangements of heating devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/08—Details peculiar to crucible or pot furnaces
- F27B14/20—Arrangement of controlling, monitoring, alarm or like devices
-
- 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
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/08—Details peculiar to crucible or pot furnaces
- F27B14/14—Arrangements of heating devices
- F27B2014/146—Recuperation of lost heat, e.g. regenerators
-
- 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
- F27D2017/007—Systems for reclaiming waste heat including regenerators
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Furnace Details (AREA)
- Crucibles And Fluidized-Bed Furnaces (AREA)
Abstract
The invention discloses a gas type energy-saving crucible furnace, which comprises a furnace body, a regenerative chamber, a four-way reversing valve, a fan and a smoke exhaust port; the hot flue gas port is communicated with the furnace body, and the burner extends into the furnace body and is communicated with the fuel supply pipe; the heat storage chambers comprise a first heat storage chamber and a second heat storage chamber, and the four-way reversing valve comprises a first four-way reversing valve and a second four-way reversing valve; the first four-way reversing valve is respectively communicated with the hot flue gas port, the first heat storage chamber, the second heat storage chamber and the burner; the second four-way reversing valve is respectively communicated with the first heat storage chamber, the second heat storage chamber, the fan and the smoke exhaust port. By designing the two four-way reversing valves, the hot flue gas can be circulated only by arranging one burner and one fan, so that the environmental pollution is reduced, the greenhouse effect is reduced, the cyclic utilization of the hot flue gas is realized, and the requirements of energy conservation and environmental protection are met. The invention has simpler structure and reduces the manufacturing cost.
Description
Technical Field
The invention relates to the field of melting furnaces, in particular to a gas type energy-saving crucible furnace.
Background
The gas aluminum melting furnace and the gas (fuel oil) crucible melting holding furnace can be used for melting casting and hot dipping of non-ferrous metal materials such as aluminum, zinc, copper and the like.
However, if the requirements of energy conservation and environmental protection are further met, the gas aluminum melting furnace in the prior art can be realized only by installing a plurality of burners, a plurality of fans and other parts, so that the structure of the gas aluminum melting furnace becomes complicated, and the manufacturing cost is also increased.
Disclosure of Invention
The invention aims to solve the technical problem of providing a gas type energy-saving crucible furnace to overcome the defects of complex structure and high manufacturing cost of a gas aluminum melting furnace in the prior art.
In order to solve the technical problem, the gas type energy-saving crucible furnace comprises a furnace body, a heat storage chamber, a four-way reversing valve, a fan and a smoke exhaust port; the hot flue gas port is communicated with the furnace body, and the burner extends into the furnace body and is communicated with the fuel supply pipe; the four-way reversing valve comprises a first four-way reversing valve and a second four-way reversing valve; the first four-way reversing valve is respectively communicated with the hot flue gas port, the first heat storage chamber, the second heat storage chamber and the burner; the second four-way reversing valve is respectively communicated with the first heat storage chamber, the second heat storage chamber, the fan and the smoke exhaust port.
The first four-way reversing valve is communicated with the hot smoke port, the first heat storage chamber, the second heat storage chamber and the burner through pipelines respectively.
The second four-way reversing valve is communicated with the first heat storage chamber, the second heat storage chamber, the fan and the smoke exhaust port through pipelines respectively.
The first four-way reversing valve is communicated with the upper parts of the first heat storage chamber and the second heat storage chamber respectively.
The second four-way reversing valve is communicated with the lower parts of the first heat storage chamber and the second heat storage chamber respectively.
Wherein, the hot flue gas mouth is located the upper portion in the furnace body.
Wherein, the burner is arranged at the lower part in the furnace body.
A first pressure gauge is arranged on a pipeline communicated with the first four-way reversing valve and the burner; and a second pressure gauge is arranged on a pipeline communicated with the second four-way reversing valve and the first heat storage chamber.
Wherein, a fuel gas flow meter, a pressure reducing valve, an electromagnetic valve, a third pressure meter and an air-fuel proportional valve are sequentially arranged on the fuel supply pipe.
And an air flow meter feedback pipe is arranged on a pipeline communicated with the first four-way reversing valve and the burner, and feeds back the air flow on the pipeline to the air-fuel proportional valve to control the size of fuel gas.
Compared with the prior art, the invention has the beneficial effects that the hot flue gas can be circulated only by arranging one burner and one fan by designing the two four-way reversing valves, so that the environmental pollution is reduced, the greenhouse effect is reduced, the cyclic utilization of the hot flue gas is realized, and the requirements of energy conservation and environmental protection are met. The invention has simpler structure and reduces the manufacturing cost.
Drawings
FIG. 1 is a first perspective view of the gas fired energy saving crucible furnace of the present invention;
FIG. 2 is a second perspective view of the gas-fired energy-saving crucible furnace of the present invention;
FIG. 3 is a schematic structural diagram of the gas-fired energy-saving crucible furnace of the invention with the furnace shell removed;
FIG. 4 is a first structural schematic view of the removal furnace body of the gas fired energy saving crucible furnace of the present invention;
FIG. 5 is a second schematic view of the removal block of the gas fired energy saving crucible furnace of the present invention;
FIG. 6 is a third schematic view of the removal furnace body of the gas-fired energy-saving crucible furnace of the present invention;
FIG. 7 is a schematic structural view of the working principle of the gas-fired energy-saving crucible furnace of the present invention.
In the drawings: 1. the device comprises a material leakage opening, 2, a furnace body, 3, a crucible, 4, a fan, 5, a smoke exhaust opening, 6, a burner, 7, a fuel supply pipe, 8, a gas flowmeter, 9, a pressure reducing valve, 10, an electromagnetic valve, 11, a third pressure gauge, 12, an air-fuel proportional valve, 13, a third pipeline, 14, an air flow meter feedback pipe, 15, a control box system, 16, a first heat storage chamber, 17, a second heat storage chamber, 18, a first four-way reversing valve, 19, a second four-way reversing valve, 20, a first pipeline, 21, a second pipeline, 22, a fourth pipeline, 23, a hot smoke exhaust opening, 24, a second pressure gauge, 25, a fifth pipeline, 26, a sixth pipeline, 27, a seventh pipeline, 28, an eighth pipeline, 29, a first pressure gauge, 30 and a baffle plate.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
The gas type energy-saving crucible furnace of the invention is shown in figures 1, 2, 3, 4, 5 and 6, and comprises a furnace body 2 with a material leakage port 1 and a baffle 30, and a crucible 3 arranged in the furnace body; a fan 4 (the fan in this embodiment is a booster fan), and a smoke exhaust port 5; stretch out nozzle 6 in the internal lower part of furnace, the nozzle heats the crucible so that melt non ferrous metal materials such as aluminium, copper or zinc when being used for the gas burning, nozzle intercommunication fuel supply pipe 7, be equipped with the gas flow meter 8 that is used for looking over the gas quantity on the fuel supply pipe in proper order, be used for stabilizing gas pressure's relief pressure valve 9, be used for controlling the solenoid valve 10 of gas break-make, be used for looking over gas pressure's third manometer 11, be used for controlling the air-fuel proportional valve 12 of gas size. And an air flow meter feedback pipe 14 is arranged on a third pipeline 13 communicated with the first four-way reversing valve and the burner, and feeds back the air flow on the third pipeline to the air-fuel proportional valve to control the size of the fuel gas, namely, the larger the air flow detected on the third pipeline is, the larger the control box system 15 controls the opening of the air-fuel proportional valve to be, the larger the fuel gas is. The regenerative chambers comprise a first regenerative chamber 16 and a second regenerative chamber 17, the four-way reversing valve comprises a first four-way reversing valve 18 (the model of the embodiment is preferably DN150) and a second four-way reversing valve 19 (the model of the embodiment is preferably DN100), and the first four-way reversing valve and the second four-way reversing valve have the same structure, but the first four-way reversing valve is preferably superior in high temperature resistance. The first four-way reversing valve is communicated with a hot smoke port 23, a first heat storage chamber, a second heat storage chamber and a burner through a first pipeline 20, a second pipeline 21, a third pipeline 13 and a fourth pipeline 22 respectively. The hot flue gas enters a first four-way reversing valve from a hot flue gas port communicated with the upper part in the furnace body through a first pipeline, and the first four-way reversing valve is distributed to a first heat storage chamber and a second heat storage chamber through a second pipeline and a fourth pipeline respectively according to requirements. The second four-way reversing valve is communicated with the first regenerative chamber, the second regenerative chamber, the fan 4 and the smoke exhaust port 5 through a fifth pipeline 25, a sixth pipeline 26, a seventh pipeline 27 and an eighth pipeline 28. And the first four-way reversing valve is communicated with the upper parts of the first heat storage chamber and the second heat storage chamber through a second pipeline and a fourth pipeline respectively. And the second four-way reversing valve is communicated with the lower parts of the first heat storage chamber and the second heat storage chamber through a sixth pipeline and an eighth pipeline respectively. And a third pipeline communicated with the first four-way reversing valve and the burner is provided with a first pressure gauge 29 for checking air pressure. And a second pressure gauge 24 for checking air pressure is arranged on an eighth pipeline communicated with the second four-way reversing valve and the first heat storage chamber.
As shown in fig. 7, when the invention is used, waste aluminum materials are put into the crucible, then the electromagnetic valve is opened, natural gas supplies gas from the fuel supply pipe to the burner 6, meanwhile, the fan 4 sends air to the second four-way reversing valve 19, the first heat storage chamber 16, the first four-way reversing valve 18 and the burner 6 in sequence, until the air and the gas are mixed, the air is ignited by the electronic igniter on the burner for combustion, thereby heating the crucible to dissolve the waste aluminum materials, high-temperature hot flue gas after combustion in the furnace body enters the first four-way reversing valve 18, the second heat storage chamber 17 from the hot flue gas port 23 in sequence (most of heat of the hot flue gas at this time can be stored in the second heat storage chamber), the second four-way reversing valve 19, and finally, the cooled hot flue gas is discharged through the flue gas port 5.
Then the control box system controls the first four-way reversing valve and the second four-way reversing valve to switch directions, at the moment, the fan 4 sends air into the second four-way reversing valve 19, the second heat storage chamber 17, the first four-way reversing valve 18 and the burner 6 in sequence until the air (the air at the moment obtains heat in the second heat storage chamber) is mixed with fuel gas and then is combusted, so that the crucible is continuously heated, high-temperature hot flue gas combusted in the furnace body enters the first four-way reversing valve 18, the first heat storage chamber 16 and the second four-way reversing valve 19 from the hot flue gas port in sequence, and finally, the cooled low-temperature hot flue gas is discharged through the flue gas port 5.
The switching time of the first four-way reversing valve and the second four-way reversing valve is 50-60 seconds, and the operation is circulated in such a way, so that the furnace body is always at a high temperature. Therefore, energy consumption can be effectively reduced, the heat efficiency is improved, the temperature of high-temperature hot flue gas is about 800-900 ℃, after most of heat is absorbed by the heat storage chamber, the temperature of low-temperature hot flue gas discharged from the smoke exhaust port is only about 100 ℃, and air cannot be polluted after the low-temperature hot flue gas is discharged.
According to the invention, the two four-way reversing valves are designed, so that hot flue gas can be circulated only by arranging one burner and one fan, the environmental pollution is reduced, the greenhouse effect is reduced, the cyclic utilization of the hot flue gas is realized, and the requirements of energy conservation and environmental protection are met. The invention has simpler structure and reduces the manufacturing cost.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A gas type energy-saving crucible furnace comprises a furnace body, a regenerative chamber, a four-way reversing valve, a fan and a smoke exhaust port; the hot flue gas port is communicated with the furnace body, and the burner extends into the furnace body and is communicated with the fuel supply pipe;
the method is characterized in that: the four-way reversing valve comprises a first four-way reversing valve and a second four-way reversing valve; the first four-way reversing valve is respectively communicated with the hot flue gas port, the first heat storage chamber, the second heat storage chamber and the burner; the second four-way reversing valve is respectively communicated with the first heat storage chamber, the second heat storage chamber, the fan and the smoke exhaust port.
2. A gas-fired energy-saving crucible furnace as claimed in claim 1, wherein: the first four-way reversing valve is communicated with the hot smoke port, the first heat storage chamber, the second heat storage chamber and the burner through pipelines respectively.
3. A gas-fired energy-saving crucible furnace as claimed in claim 1 or 2, wherein: the second four-way reversing valve is communicated with the first heat storage chamber, the second heat storage chamber, the fan and the smoke exhaust port through pipelines respectively.
4. A gas-fired energy-saving crucible furnace as claimed in claim 1, wherein: the first four-way reversing valve is respectively communicated with the upper parts of the first heat storage chamber and the second heat storage chamber.
5. The gas-fired energy-saving crucible furnace according to claim 1 or 4, characterized in that: and the second four-way reversing valve is respectively communicated with the lower parts of the first heat storage chamber and the second heat storage chamber.
6. A gas-fired energy-saving crucible furnace as claimed in claim 5, wherein: the hot smoke port is arranged at the upper part in the furnace body.
7. A gas-fired energy-saving crucible furnace as claimed in claim 6, wherein: the burner is arranged at the lower part in the furnace body.
8. A gas-fired energy-saving crucible furnace as claimed in claim 3, wherein: a first pressure gauge is arranged on a pipeline communicated with the first four-way reversing valve and the burner; and a second pressure gauge is arranged on a pipeline communicated with the second four-way reversing valve and the first heat storage chamber.
9. A gas-fired energy-saving crucible furnace as claimed in claim 1, wherein: and the fuel supply pipe is sequentially provided with a gas flowmeter, a pressure reducing valve, an electromagnetic valve, a third pressure gauge and an air-fuel proportional valve.
10. A gas-fired energy-saving crucible furnace as claimed in claim 9, wherein: an air flow meter feedback pipe is arranged on a pipeline communicated with the first four-way reversing valve and the burner, and feeds back the air flow on the pipeline to the air-fuel proportional valve to control the size of fuel gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911314090.0A CN110873531A (en) | 2019-12-19 | 2019-12-19 | Gas type energy-saving crucible furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911314090.0A CN110873531A (en) | 2019-12-19 | 2019-12-19 | Gas type energy-saving crucible furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110873531A true CN110873531A (en) | 2020-03-10 |
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ID=69717673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911314090.0A Pending CN110873531A (en) | 2019-12-19 | 2019-12-19 | Gas type energy-saving crucible furnace |
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| Country | Link |
|---|---|
| CN (1) | CN110873531A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112212689A (en) * | 2020-10-13 | 2021-01-12 | 济南海德热工有限公司 | Heat accumulating type gas crucible furnace |
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| CN103471410A (en) * | 2013-09-17 | 2013-12-25 | 李�杰 | Residual heat recycling method and system for fuel heating furnace |
| CN106524166A (en) * | 2016-12-26 | 2017-03-22 | 北京神雾环境能源科技集团股份有限公司 | Heat storage denitration combustor |
| CN106765009A (en) * | 2017-01-05 | 2017-05-31 | 中国科学院广州能源研究所 | A kind of method of continous way heat-accumulation combustion gas heating pipe steam generator and fume afterheat synthetical recovery |
| CN108072274A (en) * | 2016-11-09 | 2018-05-25 | 湖北鑫固久技术装备有限公司 | A kind of high-efficiency heat-accumulating tubular heater system |
-
2019
- 2019-12-19 CN CN201911314090.0A patent/CN110873531A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102016420A (en) * | 2008-07-07 | 2011-04-13 | 钢铁普蓝特克股份有限公司 | Radiant tube burner device and heat storing element unit capable of being mounted to radiant tube burner |
| CN103471410A (en) * | 2013-09-17 | 2013-12-25 | 李�杰 | Residual heat recycling method and system for fuel heating furnace |
| CN108072274A (en) * | 2016-11-09 | 2018-05-25 | 湖北鑫固久技术装备有限公司 | A kind of high-efficiency heat-accumulating tubular heater system |
| CN106524166A (en) * | 2016-12-26 | 2017-03-22 | 北京神雾环境能源科技集团股份有限公司 | Heat storage denitration combustor |
| CN106765009A (en) * | 2017-01-05 | 2017-05-31 | 中国科学院广州能源研究所 | A kind of method of continous way heat-accumulation combustion gas heating pipe steam generator and fume afterheat synthetical recovery |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112212689A (en) * | 2020-10-13 | 2021-01-12 | 济南海德热工有限公司 | Heat accumulating type gas crucible furnace |
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