CN110701906A - Double-combustion-system melting and protecting integrated furnace - Google Patents
Double-combustion-system melting and protecting integrated furnace Download PDFInfo
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- CN110701906A CN110701906A CN201911111203.7A CN201911111203A CN110701906A CN 110701906 A CN110701906 A CN 110701906A CN 201911111203 A CN201911111203 A CN 201911111203A CN 110701906 A CN110701906 A CN 110701906A
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- 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
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- 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
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- 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
- F27B14/143—Heating of the crucible by convection of combustion gases
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- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
Abstract
The invention discloses a melting and protecting integrated furnace with double combustion systems, which comprises: a furnace body; the feeding system is communicated with the inside and the outside of the furnace body and is close to the top of the furnace body; the discharging system is communicated with the inside and the outside of the furnace body and is positioned at the bottom of the furnace body; the exhaust system is communicated with the inside and the outside of the furnace body and is close to the top of the furnace body; the heat accumulating type burner system comprises a first burner head, a first fuel source, a heat accumulating box, a first combustion fan and a smoke exhaust fan; the cold air temperature-regulating burner system comprises a second burner head, a second fuel source and a second combustion-supporting fan. The double-combustion system melting and heat preservation integrated furnace disclosed by the invention can realize the double functions of melting and heat preservation by only one furnace body, and keeps the stability of the temperature and the pressure of molten aluminum.
Description
Technical Field
The invention relates to the field of casting design, in particular to a melting and protecting integrated furnace with double combustion systems.
Background
At present, in the aspect of aluminum alloy casting, the basic configuration is that an independent smelting furnace and an independent holding furnace are added, the smelting furnace and the holding furnace are connected through an intermediate runner, the smelting furnace adopts a regenerative burner system, and the holding furnace adopts a cold air temperature-adjusting burner system or a regenerative burner system. The regenerative burner system has high power and energy conservation, but the furnace temperature control is unstable; the cold air temperature adjusting burner system has stable furnace temperature control but is not energy-saving. In the process of casting high-end aluminum alloy, particularly 2-series and 7-series alloys, the temperature of the cast aluminum liquid is sensitive, and the change of the temperature of the aluminum liquid can greatly influence the product quality. The configuration scheme of the smelting furnace and the heat preservation furnace adopted in the prior art not only needs to be provided with a plurality of furnace bodies, but also easily causes the temperature fluctuation of the molten aluminum and easy slagging in the transfer process of the molten aluminum, and the furnace pressure of the smelting furnace is not easy to control.
Disclosure of Invention
The invention aims to provide a melting and heat preserving integrated furnace with double combustion systems, which can realize double functions of melting and heat preserving by only one furnace body and keep the temperature of molten aluminum and the pressure of the furnace stable.
In order to achieve the purpose, the invention adopts the technical scheme that: a dual combustion system melt-conserving integrated furnace comprising:
a furnace body;
the feeding system is communicated with the inside and the outside of the furnace body and is close to the top of the furnace body;
the discharging system is communicated with the inside and the outside of the furnace body and is positioned at the bottom of the furnace body;
the exhaust system is communicated with the inside and the outside of the furnace body and is close to the top of the furnace body;
the heat accumulating type burner system comprises a first burner head, a first fuel source, a heat accumulating box, a first combustion-supporting fan and a smoke exhaust fan, wherein a flame spray opening of the first burner head faces the inside of the furnace body and is close to the top of the furnace body, the first fuel source, the heat accumulating box, the first combustion-supporting fan and the smoke exhaust fan are all arranged outside the furnace body, the first fuel source is connected with the first burner head through a first fuel pipe, the first combustion-supporting fan is connected with the heat accumulating box through a first combustion-supporting pipe, the smoke exhaust fan is connected with the heat accumulating box through a smoke exhaust pipe, and the first burner head is connected with the heat accumulating box;
the cold air temperature-adjusting burner system comprises a second burner head, a second fuel source and a second combustion-supporting fan, wherein a flame spray port of the second burner head faces the inside of the furnace body and is close to the top of the furnace body, the second fuel source and the second combustion-supporting fan are both arranged outside the furnace body, the second fuel source is connected with the second burner head through a second fuel pipe, and the second combustion-supporting fan is connected with the second burner head through a second combustion-supporting pipe.
Further, the furnace body is fixed or tilting, the furnace body includes outside steel construction and inside brick structure, outside steel construction is including welding section bar frame and steel sheet together. The tilting is a tilting type, and the cylinder and the hinge are arranged, so that the cylinder pushes the furnace body to rotate around the hinge shaft.
Furthermore, the furnace body is provided with a feed inlet, the feed system comprises a furnace door and a lifting mechanism, the furnace door can be opened and arranged at the feed inlet, and the lifting mechanism drives the furnace door to open or close the feed inlet.
Furthermore, the furnace body is provided with a discharge port, the discharge system comprises a discharge pipe arranged at the discharge port and an openable flow blocking device arranged at the discharge pipe, the discharge pipe comprises a steel outer shell and a runner brick inner sleeve, and the flow blocking device is an artificial flow blocking device or a pneumatic flow blocking device. The blocking device is a baffle plate, the manual blocking device is a baffle plate which is moved manually, the pneumatic blocking device is a baffle plate which is pushed by a cylinder, and the aluminum liquid cannot flow out by the baffle plate.
Furthermore, the furnace body is provided with an exhaust port, the exhaust system comprises an exhaust pipe which is communicated with the exhaust port and is positioned outside the furnace body and a gate which can be opened and is arranged on the exhaust pipe, and the exhaust pipe is a pipeline with a lining.
Further, the first fuel source and the second fuel source are different fuel sources, and the fuel source is a natural gas supply device, a diesel oil supply device or a heavy oil supply device.
Further, the heat storage box is placed at the bottom or the top of the furnace body.
Further, one or more of the first fuel pipe, the first combustion supporting pipe, the smoke exhaust pipe, the second fuel pipe and the second combustion supporting pipe is made of steel.
Further, one or more of the first fuel pipe and the second fuel pipe is provided with a flow detection component and an electric control valve, one or more of the first combustion-supporting pipe, the smoke exhaust pipe and the second combustion-supporting pipe is provided with a flow detection component, and one or more of the first combustion-supporting fan, the smoke exhaust fan and the second combustion-supporting fan is provided with an electric control system.
Furthermore, the first combustion fan, the second combustion fan and the smoke exhaust fan are different fans, and the fans are variable frequency fans.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages: the invention discloses a melting and protecting integrated furnace with double combustion systems, which can be used as an aluminum melting furnace, a heat preservation furnace and both melting and heat preservation; the melting and protecting integrated furnace integrates two sets of combustion control systems and a set of heat accumulating type burner system, and is mainly used for melting aluminum solid materials in the early stage; the other set is a cold air temperature regulating burner system which is mainly used for keeping the temperature of furnace gas and molten aluminum constant, providing constant-temperature molten aluminum for aluminum alloy casting and improving the quality of cast products. The invention has the advantages of simple structure, unique design, wide application range, accurate furnace temperature control and energy conservation; meanwhile, the aluminum liquid with consistent temperature can be provided for the subsequent casting, and particularly the aluminum alloy casting with higher temperature requirement is provided.
Drawings
FIG. 1 is a front view of a dual combustion system melter gasifier of the present disclosure;
FIG. 2 is a top view of the disclosed dual combustion system melter;
FIG. 3 is a schematic connection diagram of the disclosed regenerative burner system;
FIG. 4 is a schematic connection diagram of the cold air attemperating burner system disclosed by the invention.
Wherein: 10. a furnace body; 11. an external steel structure; 12. an inner brick structure; 20. a feed system; 30. a discharge system; 31. a steel housing; 32. an inner sleeve of the runner brick; 40. an exhaust system; 41. an exhaust pipe; 42. a gate; 50. a regenerative burner system; 51. a first burner head; 52. a first fuel source; 53. a heat storage tank; 54. a first combustion fan; 55. a smoke exhaust fan; 56. a first fuel pipe; 57. a first combustion supporting pipe; 58. a smoke exhaust pipe; 60. a cold air temperature regulating burner system; 61. a second burner head; 62. a second fuel source; 63. a second combustion fan; 64. a first fuel pipe; 65. a first combustion supporting pipe; 71. a flow rate detection section; 72. an electric control valve.
Detailed Description
The invention is further described with reference to the accompanying drawings and examples:
example one
Referring to fig. 1-4, a dual combustion system melter-gasifier, as shown in the illustrations thereof, comprises:
a furnace body 10;
a feeding system 20 which is communicated with the inside and the outside of the furnace body 10 and is close to the top of the furnace body 10;
the discharging system 30 is communicated with the inside and the outside of the furnace body 10 and is positioned at the bottom of the furnace body 10;
an exhaust system 40 communicating the inside and outside of the furnace body 10 and near the top of the furnace body 10;
the regenerative burner system 50 comprises a first burner head 51, a first fuel source 52, a heat storage box 53, a first combustion-supporting fan 54 and a smoke exhaust fan 55, wherein a fire nozzle of the first burner head 51 faces the inside of the furnace body 10 and is close to the top of the furnace body 10, the first fuel source 52, the heat storage box 53, the first combustion-supporting fan 54 and the smoke exhaust fan 55 are all arranged outside the furnace body 10, the first fuel source 52 is connected with the first burner head 51 through a first fuel pipe 56, the first combustion-supporting fan 54 is connected with the heat storage box 53 through a first combustion-supporting pipe 57, the smoke exhaust fan 55 is connected with the heat storage box 53 through a smoke exhaust pipe 58, and the first burner head 51 is connected with the heat storage box 53;
the cold air temperature-adjusting burner system 60 comprises a second burner head 61, a second fuel source 62 and a second combustion-supporting fan 63, a flame spray port of the second burner head 61 faces the inside of the furnace body 10 and is close to the top of the furnace body 10, the second fuel source 62 and the second combustion-supporting fan 63 are both arranged outside the furnace body 10, the second fuel source 62 is connected with the second burner head 61 through a second fuel pipe 64, and the second combustion-supporting fan 63 is connected with the second burner head 61 through a second combustion-supporting pipe 65.
Preferred embodiments in this example: the furnace body 10 is fixed or tilting, the furnace body 10 comprises an external steel structure 11 and an internal brick structure 12, and the external steel structure 11 comprises a profile frame and a steel plate which are welded together.
In the preferred embodiment, the furnace body 10 is provided with a charging opening, and the feeding system 20 includes a furnace door and a lifting mechanism (not shown), wherein the furnace door is provided at the charging opening in an openable manner, and the lifting mechanism drives the furnace door to open or close the charging opening.
In the preferred embodiment of the present invention, the furnace body 10 is provided with a discharge port, the discharge system 30 comprises a discharge pipe disposed at the discharge port and an openable flow blocking device (not shown) disposed at the discharge pipe, the discharge pipe comprises a steel outer shell 31 and a runner brick inner sleeve 32, and the flow blocking device is an artificial flow blocking device or a pneumatic flow blocking device.
In the preferred embodiment of the present embodiment, the furnace body 10 is provided with an exhaust port, the exhaust system 40 includes an exhaust pipe 41 communicating with the exhaust port and located outside the furnace body 10, and a shutter 42 provided on the exhaust pipe 41 in an openable manner, and the exhaust pipe 41 is a lined pipe. The other end of the exhaust pipe is connected with a dust collecting main pipe
In the preferred embodiment of this embodiment, the first fuel source 52 is the same fuel source as the second fuel source 62, which is a natural gas supply.
In the preferred embodiment of this embodiment, the heat storage tank 53 is placed on the top of the furnace body 10.
In the preferred embodiment of this embodiment, the first fuel pipe 56, the first combustion supporting pipe 57, the smoke exhaust pipe 58, the second fuel pipe 64, and the second combustion supporting pipe 56 are all made of steel.
In the preferred embodiment of this embodiment, first fuel pipe 56 and second fuel pipe 64 are each provided with a flow rate detection member 71 and an electrically operated regulator valve 72.
In a preferred embodiment of this embodiment, the first combustion-supporting duct 57, the smoke exhaust duct 58, and the second combustion-supporting duct 56 are each provided with a flow rate detection unit 71, and the first combustion-supporting fan, the smoke exhaust fan, and the second combustion-supporting fan are each provided with an electric control system.
In a preferred embodiment of this embodiment, the first combustion fan 54, the smoke exhaust fan 55 and the second combustion fan 63 are different fans, and the fans are variable frequency fans.
The novel specific implementation process is as follows: opening a furnace door to add an aluminum raw material into the furnace body, starting a regenerative burner system, heating the raw material, preparing an alloy after the raw material is completely melted, adjusting the components, standing, and adjusting the temperature of the aluminum liquid to a temperature suitable for casting; and after the casting starts, closing the heat accumulating type burner system, starting the cold air temperature adjusting burner system, preserving heat of the aluminum liquid, and adjusting the furnace pressure in the whole process through an exhaust system to finish the whole process.
As can be seen from the above description: the invention comprises two combustion systems, one is a regenerative burner system: the method is mainly used for melting the early-stage aluminum solid material; the other set of the cold air temperature adjusting burner is mainly used for keeping the temperature of furnace gas and molten aluminum constant, providing constant-temperature molten aluminum for aluminum alloy casting and improving the quality of cast products. Meanwhile, the cold air temperature-regulating burner system can be used for a baking furnace burner after the new furnace is built, and the service life of a furnace lining is prolonged.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The utility model provides a two burning system melt and protect integrative stove which characterized in that includes:
a furnace body;
the feeding system is communicated with the inside and the outside of the furnace body and is close to the top of the furnace body;
the discharging system is communicated with the inside and the outside of the furnace body and is positioned at the bottom of the furnace body;
the exhaust system is communicated with the inside and the outside of the furnace body and is close to the top of the furnace body;
the heat accumulating type burner system comprises a first burner head, a first fuel source, a heat accumulating box, a first combustion-supporting fan and a smoke exhaust fan, wherein a flame spray opening of the first burner head faces the inside of the furnace body and is close to the top of the furnace body, the first fuel source, the heat accumulating box, the first combustion-supporting fan and the smoke exhaust fan are all arranged outside the furnace body, the first fuel source is connected with the first burner head through a first fuel pipe, the first combustion-supporting fan is connected with the heat accumulating box through a first combustion-supporting pipe, the smoke exhaust fan is connected with the heat accumulating box through a smoke exhaust pipe, and the first burner head is connected with the heat accumulating box;
the cold air temperature-adjusting burner system comprises a second burner head, a second fuel source and a second combustion-supporting fan, wherein a flame spray port of the second burner head faces the inside of the furnace body and is close to the top of the furnace body, the second fuel source and the second combustion-supporting fan are both arranged outside the furnace body, the second fuel source is connected with the second burner head through a second fuel pipe, and the second combustion-supporting fan is connected with the second burner head through a second combustion-supporting pipe.
2. The dual combustion system melter-gasifier of claim 1 wherein the furnace body is fixed or tiltable, the furnace body comprising an outer steel structure and an inner brick structure, the outer steel structure comprising a profile frame and a steel plate welded together.
3. The dual combustion system furnace of claim 1, wherein the furnace body is provided with a charging opening, the charging system comprises a furnace door and a lifting mechanism, the furnace door is provided at the charging opening in an openable manner, and the lifting mechanism drives the furnace door to open or close the charging opening.
4. The dual combustion system melter-gasifier of claim 1 wherein said furnace body is provided with a discharge port, said discharge system comprises a discharge pipe disposed at said discharge port and an openable flow blocking device disposed at said discharge pipe, said discharge pipe comprises an outer steel shell and an inner runner brick sleeve, and said flow blocking device is either a manual flow blocking device or a pneumatic flow blocking device.
5. The dual combustion system melter-gasifier of claim 1 wherein said furnace body is provided with an exhaust port, said exhaust system comprising an exhaust pipe in communication with said exhaust port and located outside said furnace body and an openable shutter disposed on said exhaust pipe, said exhaust pipe being lined.
6. The dual combustion system melter-gasifier of claim 1 wherein said first fuel source and said second fuel source are the same fuel source and different fuel sources, and wherein said fuel sources are natural gas supply or diesel supply or heavy oil supply.
7. The dual combustion system melter-gasifier of claim 1 wherein said regenerator is placed at the bottom or top of said furnace body.
8. The dual combustion system melter-gasifier of claim 1 wherein one or more of said first fuel pipe, first combustion supporting pipe, said smoke exhaust pipe, said second fuel pipe, and said second combustion supporting pipe is steel pipe.
9. The dual combustion system melter-gasifier of claim 1 wherein one or more of said first fuel pipe and said second fuel pipe is provided with a flow detection device and an electrically operated control valve, one or more of said first combustion supporting pipe, said smoke exhaust pipe and said second combustion supporting pipe is provided with a flow detection device, and one or more of said first combustion supporting fan, said smoke exhaust fan and said second combustion supporting fan is provided with an electrically operated control system.
10. The dual combustion system melt-protection integrated furnace according to claim 1, wherein the first combustion fan, the second combustion fan and the smoke exhaust fan are different fans, and the fans are variable frequency fans.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911111203.7A CN110701906A (en) | 2019-11-14 | 2019-11-14 | Double-combustion-system melting and protecting integrated furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911111203.7A CN110701906A (en) | 2019-11-14 | 2019-11-14 | Double-combustion-system melting and protecting integrated furnace |
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| CN110701906A true CN110701906A (en) | 2020-01-17 |
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| CN201911111203.7A Pending CN110701906A (en) | 2019-11-14 | 2019-11-14 | Double-combustion-system melting and protecting integrated furnace |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111349795A (en) * | 2020-05-06 | 2020-06-30 | 苏州中联众信热能科技有限公司 | Vacuum melting and maintaining furnace |
-
2019
- 2019-11-14 CN CN201911111203.7A patent/CN110701906A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111349795A (en) * | 2020-05-06 | 2020-06-30 | 苏州中联众信热能科技有限公司 | Vacuum melting and maintaining furnace |
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