CN214502059U - Heat accumulating type crucible melting holding furnace - Google Patents
Heat accumulating type crucible melting holding furnace Download PDFInfo
- Publication number
- CN214502059U CN214502059U CN202120739602.4U CN202120739602U CN214502059U CN 214502059 U CN214502059 U CN 214502059U CN 202120739602 U CN202120739602 U CN 202120739602U CN 214502059 U CN214502059 U CN 214502059U
- Authority
- CN
- China
- Prior art keywords
- heat
- hot air
- melting
- crucible
- furnace 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.)
- Active
Links
Images
Landscapes
- Air Supply (AREA)
- Crucibles And Fluidized-Bed Furnaces (AREA)
Abstract
The utility model discloses a heat accumulation formula crucible melts heat preservation stove, it includes: the melting heat-preserving furnace body and the heat accumulator arranged beside the melting heat-preserving furnace body are provided with a plurality of baffles at intervals, the cold air outlet of the cold air channel is communicated with the heating nozzle of the melting heat-preserving furnace body. The utility model discloses in the hot air channel that the export of discharging fume that will melt the heat preservation furnace body inserts the heat accumulator to the combustion-supporting wind that will melt the heat preservation furnace body inserts the heating nozzle through the cold wind passageway of heat accumulator, passes the cold wind passageway through hot air channel, makes combustion-supporting wind and hot-blast heat exchange that carries on of discharging fume, heats combustion-supporting wind, and then the increasing the thermal efficiency, reduces fuel consumption.
Description
The technical field is as follows:
the utility model relates to the field of melting furnaces, in particular to a heat accumulating type crucible melting holding furnace.
Background art:
the crucible furnace is the simplest smelting equipment and is mainly used for melting nonferrous metals with low melting points, such as copper, aluminum and alloys thereof. In the furnace, the alloy is melted in the crucible, heat is transferred to the furnace charge through the crucible, and the combustion products of the furnace charge are not in direct contact, so that the chemical components of the alloy are hardly influenced by furnace gas, and the temperature of the alloy liquid is relatively uniform, which is the main advantage. However, the existing crucible furnaces on the market at present have the defects of low thermal efficiency, high fuel consumption and the like.
In view of the above, the present inventors propose the following.
The utility model has the following contents:
the utility model aims to overcome the defects of the prior art and provide a heat accumulating type crucible melting holding furnace.
In order to solve the technical problem, the utility model discloses a following technical scheme: this heat accumulation formula crucible melts heat preservation stove includes: the melting heat-preservation furnace body and the heat accumulator are arranged beside the melting heat-preservation furnace body and used for collecting waste heat of a flue, the heat accumulator comprises a heat exchange box body, a cold air channel and a hot air channel, the cold air channel and the hot air channel are mutually independent, a hot air inlet of the hot air channel is communicated with a smoke exhaust outlet of the melting heat-preservation furnace body, a plurality of layers of heat exchange tubes penetrating through the cold air channel are arranged in front of the hot air inlet of the hot air channel, a plurality of baffles for separating the cold air channel into S-shaped trends are arranged on the heat exchange tubes at intervals, and a cold air outlet of the cold air channel is communicated with a heating nozzle of the melting heat-preservation furnace body.
Further, in the above technical scheme, the heat exchange tubes are provided with at least four layers, each layer of heat exchange tubes is separated by the baffle, one end of each heat exchange tube is connected with the hot air inlet or the hot air outlet, and the other end of each heat exchange tube is provided with a communicating channel.
Further, in the above technical solution, the communication channel, the hot air outlet and the hot air inlet divide a space between the cold air inlet and the cold air outlet into vertical channels, and the vertical channels are penetrated by the heat exchange tubes, and are divided into four horizontal layers by the baffles and circulate along an S-shaped direction.
Further, in the above technical solution, each layer of the heat exchange tubes is provided with five heat exchange tubes and distributed in an X shape.
Further, in the above technical solution, the hot air outlet is upward, the hot air inlet is perpendicular to the hot air outlet and larger than the hot air outlet, and the cold air inlet and the cold air outlet are both toward.
Furthermore, in the above technical scheme, the melting heat preservation furnace body comprises a crucible, a support pier arranged at the bottom of the crucible, a fire resistant layer arranged at the periphery of the crucible and surrounding the crucible, a heat preservation layer wrapped outside the fire resistant layer and a heat preservation cover arranged at the opening of the crucible, the heating burner is arranged on the side wall of the fire resistant layer and penetrates through the fire resistant layer and the heat preservation layer, a furnace body shell is arranged outside the heat preservation layer, and the heat accumulator is arranged on one side of the furnace body shell.
Further, in the above technical solution, the heating burner is disposed at the lower portion of the fire-resistant layer, and the smoke exhaust outlet is disposed at the upper portion of the fire-resistant layer and penetrates through the fire-resistant layer and the heat insulation layer.
Furthermore, in the above technical scheme, the fire-resistant layer comprises refractory bricks stacked together from bottom to top, fire-receiving bricks arranged on the upper portions of the refractory bricks, and closing-up bricks arranged on the tops of the refractory bricks, the smoke discharge outlet is located between the fire-receiving bricks and the closing-up bricks, and the fire-receiving bricks and the closing-up bricks are separated by one layer of the refractory bricks.
After the technical scheme is adopted, compared with the prior art, the utility model has following beneficial effect: the utility model discloses in through setting up the heat accumulator melting heat preservation furnace body side, the export of discharging fume that will melt heat preservation furnace body inserts in the hot air channel of heat accumulator, and the combustion-supporting wind that will melt heat preservation furnace body inserts the heating nozzle through the cold wind passageway of heat accumulator, adopt in the heat accumulator to pass hot air channel from the cold wind passageway, make the combustion-supporting wind through the cold wind passageway and the interior hot-blast heat exchange that carries out of discharging fume of hot air channel, in order to realize heating combustion-supporting wind, and then the thermal efficiency is improved, and the combustion-supporting wind of heating also can promote the combustion rate of fuel, reduce fuel consumption.
Description of the drawings:
fig. 1 is a perspective view of the present invention;
fig. 2 is a rear view of the present invention;
FIG. 3 is a cross-sectional view of section A-A of FIG. 2;
FIG. 4 is an internal structural view of the present invention;
fig. 5 is a perspective view of the regenerator of the present invention;
fig. 6 is an internal structure view of the heat accumulator of the present invention.
Description of reference numerals:
1 melting heat preservation furnace body 11 smoke outlet 12 heating burner
13 crucible 14 support pier 15 refractory layer
151 refractory brick 152 fire-collecting brick 153 closing-up brick
16 heat preservation layer 17 heat preservation cover 18 furnace body shell
2 cold air channel of heat accumulator 21 heat exchange box 22
221 cold air outlet 222 cold air inlet 23 hot air channel
231 hot air inlet 232 hot air outlet 233 heat exchange tube
234 communicating channel 24 baffle
The specific implementation mode is as follows:
the present invention will be further described with reference to the following specific embodiments and accompanying drawings.
Referring to fig. 1 to 6, a regenerative crucible melting holding furnace includes: the melting heat-preserving furnace body 1 and the heat accumulator 2 arranged beside the melting heat-preserving furnace body 1 and used for collecting flue waste heat are arranged, the heat accumulator 2 comprises a heat exchange box body 21, a cold air channel 22 and a hot air channel 23 which are arranged in the heat exchange box body 21 and are mutually independent, a hot air inlet 231 of the hot air channel 23 is communicated with a smoke exhaust outlet 11 of the melting heat-preserving furnace body 1, a plurality of layers of heat exchange tubes 233 which penetrate through the cold air channel 22 are arranged in front of the hot air outlet 232 of the hot air channel 23 and the hot air inlet 231, a plurality of baffles 24 which partition the cold air channel 22 into S-shaped trends are arranged on the heat exchange tubes 233 at intervals, and a cold air outlet 221 of the cold air channel 22 is communicated with a heating burner 12 of the melting heat-preserving furnace body 1. The heat accumulator 2 is arranged beside the melting heat-insulating furnace body 1, the smoke outlet 11 of the melting heat-insulating furnace body 1 is connected into the hot air channel 23 of the heat accumulator 2, the combustion-supporting air of the melting heat-insulating furnace body 1 is connected into the heating burner 12 through the cold air channel 22 of the heat accumulator 2, the hot air channel 23 penetrates through the cold air channel 22 in the heat accumulator 2, and the combustion-supporting air passing through the cold air channel 22 and the smoke-discharging hot air in the hot air channel 23 are subjected to heat sufficient exchange, so that the combustion-supporting air is heated, the heat efficiency is improved, the combustion rate of fuel can be improved by the heated combustion-supporting air, the fuel is combusted sufficiently, and the fuel consumption is reduced. In the above scheme, the mode of surrounding the smoke exhaust hot air by combustion-supporting air is adopted, namely: in the heat accumulator, combustion-supporting air is arranged around the flow path of the exhaust hot air, so that heat exhausted by the hot air is fully absorbed, heat of the exhaust hot air is effectively prevented from being dissipated around the heat accumulator, and heat loss is further reduced.
The heat exchange tubes 233 are provided with at least four layers, each layer of the heat exchange tubes 233 is partitioned by the baffle 24, one end of each heat exchange tube 233 is communicated with the hot air inlet 231 or the hot air outlet 232, and the other end of each heat exchange tube 233 is provided with a communication channel 234. The flow path of the smoke exhaust hot air is increased by adopting the plurality of layers of heat exchange tubes 233, and the baffle 24 is used for blocking the combustion-supporting air, so that cold and hot air can stay in the heat accumulator 2 for a long time, and heat exchange is facilitated. Five heat exchange tubes 233 are arranged on each layer and distributed in an X shape. The five heat exchange tubes 233 in each layer are arranged in an X-shaped distribution, so that the flow cross-sectional area can be increased to delay the flow speed of hot air and cold air in the heat accumulator 2, combustion-supporting air can be completely surrounded on the outer wall of the heat exchange tubes 233, the heat exchange contact area is increased, and heat exchange is fully completed.
The communication channel 234, the hot air outlet 232 and the hot air inlet 231 divide the space between the cold air inlet 222 and the cold air outlet 221 into vertical channels, are penetrated by the heat exchange tubes 233, are divided into four horizontal layers by the baffle 24 and circulate along the S-shaped direction. Due to the obstruction of the baffle plate 24, the combustion-supporting air flows from top to bottom in an S-shaped trend, the combustion-supporting air is ensured to be fully contacted with the heat exchange tubes 233 on each layer, the contact time of the combustion-supporting air and the smoke exhaust hot air is prolonged, and the heat is ensured to be fully exchanged.
The hot air outlet 232 faces upward, the hot air inlet 231 is perpendicular to the hot air outlet 232 and larger than the hot air outlet 232, and the cold air inlet 222 and the cold air outlet 221 both face toward each other. The scheme that the cross section of the hot air inlet 231 is larger than that of the hot air outlet 232 is adopted, so that the pressure difference between the hot air outlet 232 and the hot air inlet 231 can be generated, and the circulation of smoke exhaust hot air is facilitated. Secondly, the cold air outlet 221 is arranged below the hot air inlet 231, and the cold air inlet 222 and the hot air outlet 232 are respectively arranged towards the other two sides of the heat accumulator 2, so that combustion-supporting air and smoke-discharging hot air flow relatively, a large temperature difference is always kept between the cold air and the hot air, and heat is fully exchanged.
Melting heat preservation furnace body 1 including crucible 13, set up in support mound 14 of crucible 13 bottom, set up in crucible 13 periphery and with this flame retardant coating 15 that crucible 13 surrounded, wrap up in the outside heat preservation 16 of flame retardant coating 15 and set up in the heat preservation lid 17 of crucible 13 opening part, heating nozzle 12 set up in on the flame retardant coating 15 lateral wall and run through this flame retardant coating 15 with heat preservation 16, the outside furnace body shell 18 that is provided with of heat preservation 16, heat accumulator 2 install in furnace body shell 18 one side.
The heating burner 12 is arranged on the lower portion of the fire-resistant layer 15, and the smoke exhaust outlet 11 is arranged on the upper portion of the fire-resistant layer 15 and penetrates through the fire-resistant layer 15 and the heat insulation layer 16. In one embodiment, natural gas is used as fuel, and the fuel and combustion-supporting gas are introduced into the melting and heat-preserving furnace body 1 from the heating burner 12 to heat the crucible 13, so as to melt the aluminum material in the crucible 13 to produce aluminum liquid.
The refractory layer 15 comprises refractory bricks 151 stacked together from bottom to top, fire collecting bricks 152 arranged on the upper portions of the refractory bricks 151 and closing-up bricks 153 arranged on the tops of the refractory bricks 151, the smoke discharge outlet 11 is located between the fire collecting bricks 152 and the closing-up bricks 153, and the fire collecting bricks 152 and the closing-up bricks 153 are separated by one layer of the refractory bricks 151. The fire-collecting brickwork 152 and the binding-off brickwork 153 are both refractory bricks.
To sum up, the utility model discloses a theory of operation is: the exhaust smoke outlet 11 of the melting heat-preserving furnace body 1 is connected into the hot air channel 23 of the heat accumulator 2, exhaust smoke hot air generated in the hearth flows in the heat accumulator 2 through a specific flow path and then flows out of the hot air outlet 232, meanwhile, combustion-supporting air flows into the cold air channel 22 of the heat accumulator 2 at a normal temperature state and also flows through a specific path and flows to the heating burner 12 through the cold air outlet 222, so that a heat exchange phenomenon can be generated due to the large temperature difference of hot and cold two streams of gas in the heat accumulator 2 during flowing, and therefore, the heat of high-temperature gas (namely exhaust smoke hot air) in the hearth is transferred to the combustion-supporting air and injected into the furnace to achieve the effect of heat utilization.
After the scheme is adopted, the following advantages are achieved:
1. the cold air is wrapped by hot air, and cold air is completely arranged around the hot air flow path in the heat accumulator, so that heat discharged by the hot air is fully absorbed.
2. The hot air and the cold air flow in opposite directions. The hot air and the cold air in the heat accumulator flow in opposite directions, so that a large temperature difference is always kept between the hot air and the cold air, and the heat is fully absorbed.
3. The flow cross-sectional area is increased. The cross section area of the flow passage is increased to delay the flow speed of hot air and cold air in the accumulator and fully finish heat exchange.
4. The flow path is lengthened, so that the cold and hot gas stays in the heat accumulator for a longer time, and the heat can be further absorbed.
Of course, the above description is only an exemplary embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes and modifications made by the constructions, features, and principles of the present invention in accordance with the claims of the present invention are intended to be included in the scope of the present invention.
Claims (8)
1. A heat accumulating type crucible melting holding furnace is characterized by comprising: a melting heat-preserving furnace body (1) and a heat accumulator (2) which is arranged beside the melting heat-preserving furnace body (1) and is used for collecting flue waste heat, the heat accumulator (2) comprises a heat exchange box body (21), a cold air channel (22) and a hot air channel (23) which are arranged in the heat exchange box body (21) and are mutually independent, a hot air inlet (231) of the hot air channel (23) is communicated with a smoke exhaust outlet (11) of the melting heat-preserving furnace body (1), a plurality of layers of heat exchange tubes (233) which pass through the cold air channel (22) are arranged in front of the hot air outlet (232) and the hot air inlet (231) of the hot air channel (23), and a plurality of baffles (24) which separate the cold air channel (22) into S-shaped trends are arranged on the heat exchange tube (233) at intervals, and a cold air outlet (221) of the cold air channel (22) is communicated with a heating burner (12) of the melting heat-preserving furnace body (1).
2. A regenerative crucible melting and holding furnace as set forth in claim 1, wherein: the heat exchange tubes (233) are at least provided with four layers, each layer of the heat exchange tubes (233) are separated by the baffle (24), one end of each heat exchange tube (233) is communicated with the hot air inlet (231) or the hot air outlet (232), and the other end of each heat exchange tube (233) is provided with a communication channel (234).
3. A regenerative crucible melting and holding furnace as set forth in claim 2, wherein: the communication channel (234), the hot air outlet (232) and the hot air inlet (231) divide a space between the cold air inlet (222) and the cold air outlet (221) into vertical channels, the vertical channels are penetrated by the heat exchange tubes (233), the horizontal channels are divided into four layers by the baffle plates (24), and the horizontal channels circulate along the S-shaped trend.
4. A regenerative crucible melting and holding furnace as set forth in claim 3, wherein: five heat exchange tubes (233) are arranged on each layer and distributed in an X shape.
5. A regenerative crucible melting and holding furnace as set forth in claim 4, wherein: the hot air outlet (232) faces upwards, the hot air inlet (231) is perpendicular to the hot air outlet (232) and larger than the hot air outlet (232), and the cold air inlet (222) and the cold air outlet (221) face towards each other.
6. A regenerative crucible melting and holding furnace as claimed in any one of claims 1 to 5, wherein: melting heat preservation furnace body (1) including crucible (13), set up in support mound (14) of crucible (13) bottom, set up in crucible (13) periphery and with this flame retardant coating (15), the parcel that crucible (13) surround in outside heat preservation (16) of flame retardant coating (15) and set up in heat preservation lid (17) of crucible (13) opening part, heating nozzle (12) set up in on flame retardant coating (15) lateral wall and run through this flame retardant coating (15) with heat preservation (16), heat preservation (16) outside is provided with furnace body shell (18), heat accumulator (2) install in furnace body shell (18) one side.
7. A regenerative crucible melting and holding furnace as set forth in claim 6, wherein: the heating burner (12) is arranged on the lower portion of the fire-resistant layer (15), and the smoke exhaust outlet (11) is arranged on the upper portion of the fire-resistant layer (15) and penetrates through the fire-resistant layer (15) and the heat insulation layer (16).
8. A regenerative crucible melting and holding furnace as set forth in claim 7, wherein: the refractory layer (15) including from bottom to top stack together resistant firebrick (151), set up in receipts fire brickwork (152) on resistant firebrick (151) upper portion and set up in binding off brickwork (153) at resistant firebrick (151) top, smoke outlet (11) are located receive fire brickwork (152) with between binding off brickwork (153), just receive fire brickwork (152) with binding off brickwork (153) is by the one deck resistant firebrick (151) separates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120739602.4U CN214502059U (en) | 2021-04-12 | 2021-04-12 | Heat accumulating type crucible melting holding furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120739602.4U CN214502059U (en) | 2021-04-12 | 2021-04-12 | Heat accumulating type crucible melting holding furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214502059U true CN214502059U (en) | 2021-10-26 |
Family
ID=78202539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120739602.4U Active CN214502059U (en) | 2021-04-12 | 2021-04-12 | Heat accumulating type crucible melting holding furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214502059U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114739184A (en) * | 2022-03-22 | 2022-07-12 | 武钢集团昆明钢铁股份有限公司 | Blast furnace gas combustion heat storage stabilizing device |
-
2021
- 2021-04-12 CN CN202120739602.4U patent/CN214502059U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114739184A (en) * | 2022-03-22 | 2022-07-12 | 武钢集团昆明钢铁股份有限公司 | Blast furnace gas combustion heat storage stabilizing device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN214502059U (en) | Heat accumulating type crucible melting holding furnace | |
| CN102444895B (en) | Small refuse incinerator | |
| CN101294770A (en) | Alloy melting heat-preserving crucible furnace | |
| CN201724547U (en) | Heat-accumulation lead melting furnace | |
| CN204830454U (en) | Many return strokes living beings hot -blast furnace | |
| CN107955884B (en) | A kind of novel oxygen-enriched side-blowing copper smelting-furnace furnace roof cooling device | |
| CN101871727B (en) | Heat-storage lead-melting furnace | |
| CN203109217U (en) | Heat preservation baking device for steel ladle | |
| CN101900483A (en) | Aluminum-alloy melting furnace carrying heat storage burner | |
| CN206724695U (en) | A kind of fuel gas buring and electric arc combined heat smelting furnace | |
| CN212253626U (en) | Heat accumulating type aluminum melting furnace | |
| CN204923850U (en) | Stove is emptyd to air preheating -type crucible | |
| CN215766433U (en) | Smelting furnace integrated with heat storage and exchange device | |
| CN111336811A (en) | Heat accumulating type aluminum melting furnace | |
| CN207592741U (en) | A kind of online heat accumulating type heat patching device of continuous casting billet | |
| CN2937924Y (en) | Heater with air duct system | |
| CN201553702U (en) | Water-cooled corbel of dry coke quenching furnace flue pipe | |
| CN216694399U (en) | Blast furnace waste heat utilization device | |
| CN206469688U (en) | A kind of heavy oil combustion, fuel gas buring and electric arc combined heat smelting furnace | |
| CN203605771U (en) | Bidirectional convection corrugated plate air heat exchanger | |
| CN213599578U (en) | Heating structure of heating stove | |
| CN211526448U (en) | Heat-preservation oxidation cooling fire cabinet and smelting system | |
| CN215909666U (en) | Energy-saving smelting device | |
| CN214937064U (en) | Heat-insulating type combustion beam for lime kiln | |
| CN221036743U (en) | Low-burning loss energy-saving aluminum melting furnace |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 523000 Room 101, No. 35, South Fifth Street, Qiaotou East Road, Qiaotou town, Dongguan City, Guangdong Province Patentee after: DONGGUAN GAOYUAN INDUSTRIAL FURNACE CO.,LTD. Address before: 523000 workshop 32-4, Changdi Road East, Beizha Dongfang village, Humen Town, Dongguan City, Guangdong Province Patentee before: DONGGUAN GAOYUAN INDUSTRIAL FURNACE CO.,LTD. |
|
| CP02 | Change in the address of a patent holder |