CN218120572U - Energy-saving recycling device for cupola furnace - Google Patents
Energy-saving recycling device for cupola furnace Download PDFInfo
- Publication number
- CN218120572U CN218120572U CN202222182353.0U CN202222182353U CN218120572U CN 218120572 U CN218120572 U CN 218120572U CN 202222182353 U CN202222182353 U CN 202222182353U CN 218120572 U CN218120572 U CN 218120572U
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- China
- Prior art keywords
- pipe
- cupola
- air inlet
- smoke
- cupola furnace
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- 238000004064 recycling Methods 0.000 title claims description 12
- 239000000779 smoke Substances 0.000 claims abstract description 57
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 51
- 239000000428 dust Substances 0.000 claims abstract description 32
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000003546 flue gas Substances 0.000 claims abstract description 28
- 239000002184 metal Substances 0.000 claims abstract description 22
- 229910052751 metal Inorganic materials 0.000 claims abstract description 22
- 239000002131 composite material Substances 0.000 claims abstract description 17
- 238000004321 preservation Methods 0.000 claims description 17
- 239000013618 particulate matter Substances 0.000 claims description 8
- 238000009413 insulation Methods 0.000 claims description 6
- 239000011148 porous material Substances 0.000 claims description 3
- 239000010865 sewage Substances 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 2
- 239000003517 fume Substances 0.000 claims 1
- 239000007789 gas Substances 0.000 abstract description 9
- 238000002485 combustion reaction Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 3
- 238000001914 filtration Methods 0.000 description 11
- 238000010521 absorption reaction Methods 0.000 description 9
- 239000002918 waste heat Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000012716 precipitator Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
Images
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Abstract
The utility model relates to a cupola technical field specifically is an energy-conserving recycle device of cupola, including cylindricality holding water box, cyclone, electric bag composite dust remover and air inlet machine, be equipped with spiral metal heat exchange tube in the cylindricality holding water box, the input of spiral metal heat exchange tube is connected with thermal-insulated smoke guiding pipe, and the air-out end of air inlet machine is connected with the cupola intake pipe that is used for to cupola carried air, and the second smoke guiding pipe passes through smoke returning pipe and cupola intake pipe intercommunication. This energy-conserving recycle device of cupola, through set up spiral metal heat exchange tube in cylindricality holding water box, can prolong the flow of high temperature flue gas in cylindricality holding water box is long, effectively utilize the heat in the high temperature flue gas, lead back the high temperature flue gas that part was handled through cyclone to the combustion chamber of cupola through smoke return pipe, send combustible gas such as a large amount of CO in the flue gas, a small amount of H2 and CH4 into the furnace body inner chamber and burn once more, the make full use of energy, realize energy-conserving effect.
Description
Technical Field
The utility model relates to a cupola furnace technical field specifically is an energy-conserving recycle device of cupola furnace.
Background
The cupola furnace is a vertical cylindrical smelting furnace, which is divided into a front furnace and a rear furnace and is important equipment for melting cast iron in casting production, a heat exchanger is arranged on a top furnace and is mainly used for producing iron castings and is also used for matching with a converter for steelmaking, flue gas discharged by the cupola furnace has high temperature and is generally directly discharged or discharged after treatment, and the recycling is relatively less.
The publication number is CN 207395501U's patent discloses a cupola waste heat recovery device, including the water intaking valve, outer heat absorption pipe, interior heat absorption pipe, the connecting pipe, the delivery port, the protecting crust, the heat transfer pipe, the water storage valve, holding water box and drain, the protecting crust sets up in chimney annular side, the water intaking valve sets up on the inlet tube, interior heat absorption pipe sets up inside the protecting crust, outer heat absorption pipe sets up inside the protecting crust, outside the heat absorption pipe including outer heat absorption pipe parcel, outer heat absorption pipe passes through the connecting pipe and connects interior heat absorption pipe, the delivery port sets up the heat absorption pipe right-hand member including, this design has realized the function of fully retrieving cupola waste heat, the heat transfer pipe sets up at the delivery port right-hand member face, the water storage valve sets up on heat transfer pipe, holding water box sets up on the furnace body right side, the drain sets up the terminal surface under the holding water box, this design has realized the function of temporarily storing and retrieving heat, the utility model discloses convenient to use, convenient operation, stability is good, the reliability is high.
Although the technical scheme realizes the function of temporarily storing and recovering heat, the waste heat recovery mechanism in the technical scheme is directly arranged on the outer side of the chimney, and the chimney is a straight pipe, so that high-temperature flue gas can be quickly discharged upwards, and the available heat is very limited.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an energy-conserving recycle device of cupola to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above purpose, the utility model provides a following technical scheme:
the utility model provides an energy-conserving recycle device of cupola, includes cylindricality holding water box, cyclone, electric bag composite precipitator and air inlet machine, be equipped with spiral metal heat exchange tube in the cylindricality holding water box, the input of spiral metal heat exchange tube passes the top of cylindricality holding water box inner wall and is connected with thermal-insulated smoke guide tube, the output of spiral metal heat exchange tube passes the right side of cylindricality holding water box inner wall and is connected with first smoke guide tube, the output of first smoke guide tube is connected with cyclone's input, cyclone's output is connected with electric bag composite precipitator's input through second smoke guide tube, the air-out end of air inlet machine is connected with the cupola intake pipe that is used for carrying air to the cupola, second smoke guide tube passes through smoke return tube and cupola intake pipe intercommunication.
Preferably, one end of the heat insulation smoke guide pipe, which is far away from the spiral metal heat exchange pipe, is connected with a smoke collection cover for collecting high-temperature smoke of the cupola furnace.
Preferably, the left side of cylindricality holding water box and the position that is close to the bottom are connected with the inlet tube, the right side of cylindricality holding water box and the position that is close to the top are connected with the outlet pipe, all be equipped with the solenoid valve on inlet tube and the outlet pipe.
Preferably, a drain pipe is arranged at the bottom end of the outer wall of the cylindrical heat-preservation water tank, and an electromagnetic valve is also arranged on the drain pipe.
Preferably, the electric-bag composite dust collector further comprises an exhaust fan for discharging flue gas, the output end of the electric-bag composite dust collector is connected with the air inlet end of the exhaust fan through a third smoke guide pipe, and the air outlet end of the exhaust fan is connected with a chimney through a gas guide pipe.
Preferably, the air inlet end of air inlet machine is equipped with air inlet filter mechanism, air inlet filter mechanism includes the air-supply line, just be close to the position of right-hand member in the air-supply line and be equipped with first particulate matter filter, just the position that is close to the left end in the air-supply line is equipped with the second particulate matter filter.
Preferably, the filtering pore size of the first particulate filter plate is larger than that of the second particulate filter plate.
Preferably, a control valve is arranged on the smoke returning pipe.
Compared with the prior art, the beneficial effects of the utility model are that:
1. this energy-conserving recycle device of cupola, through set up spiral metal heat exchange tube in cylindricality holding water box, can prolong the flow of high temperature flue gas in cylindricality holding water box is long, improves the replacement of cold water in the cylindricality holding water box and the heat in the spiral metal heat exchange tube, effectively utilizes the heat in the high temperature flue gas.
2. Part of high-temperature flue gas treated by the cyclone dust collector is led back to a combustion chamber of the cupola furnace through the smoke return pipe, and a large amount of combustible gas such as CO, a small amount of combustible gas such as H2 and CH4 in the flue gas is sent into an inner cavity of the furnace body for secondary combustion, so that energy is fully utilized, and the effect of saving energy is realized.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the internal assembly structure of the cylindrical heat-preservation water tank of the present invention;
fig. 3 is a schematic view of an assembly structure of the air inlet fan and the air inlet filtering mechanism of the present invention.
In the figure: the device comprises a cylindrical heat-preservation water tank 1, a water inlet pipe 10, a water outlet pipe 11, a sewage discharge pipe 12, a spiral metal heat exchange pipe 2, a heat-insulation smoke guide pipe 3, a smoke collection cover 4, a cyclone dust collector 5, an electric bag composite dust collector 6, an exhaust fan 7, a smoke exhaust chimney 8, an air inlet filtering mechanism 9, an air inlet pipe 90, a first particulate matter filtering plate 91, a second particulate matter filtering plate 92, an air inlet fan 13, a cupola air inlet pipe 14, an electromagnetic valve 15, a first smoke guide pipe 16, a second smoke guide pipe 17, a third smoke guide pipe 18, a smoke return pipe 19 and a control valve 20.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and for simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second", "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", "third" may explicitly or implicitly include one or more of the features.
Referring to fig. 1-3, the present invention provides a technical solution:
an energy-saving recycling device of a cupola comprises a cylindrical heat-preservation water tank 1, a cyclone dust collector 5, an electric bag composite dust collector 6 and an air inlet fan 13, wherein a spiral metal heat exchange tube 2 is arranged in the cylindrical heat-preservation water tank 1, the input end of the spiral metal heat exchange tube 2 penetrates through the top of the inner wall of the cylindrical heat-preservation water tank 1 and is connected with a heat-insulation smoke guide tube 3, high-temperature smoke is guided into the spiral metal heat exchange tube 2, the output end of the spiral metal heat exchange tube 2 penetrates through the right side of the inner wall of the cylindrical heat-preservation water tank 1 and is connected with a first smoke guide tube 16, the output end of the first smoke guide tube 16 is connected with the input end of the cyclone dust collector 5, the smoke subjected to heat exchange is guided into the cyclone dust collector 5, the output end of the cyclone dust collector 5 is connected with the input end of the electric bag composite dust collector 6 through a second smoke guide tube 17, the method comprises the steps of guiding flue gas subjected to dust removal treatment by a cyclone dust collector 5 into an electric bag composite dust collector 6, performing dust removal filtration on the flue gas by the electric bag composite dust collector 6 again to meet discharge conditions, connecting an air outlet end of an air inlet machine 13 with a cupola air inlet pipe 14 for conveying air to a cupola, communicating a second smoke guide pipe 17 with the cupola air inlet pipe 14 through a smoke return pipe 19, guiding part of high-temperature flue gas subjected to treatment by the cyclone dust collector 5 back into a combustion chamber of the cupola through the smoke return pipe 19, and feeding a large amount of combustible gas such as CO, a small amount of combustible gas such as H2 and CH4 in the flue gas into an inner cavity of a furnace body for secondary combustion, so that energy is fully utilized, and the effect of energy conservation is achieved.
In the embodiment, one end of the heat-insulating smoke guide pipe 3, which is far away from the spiral metal heat exchange pipe 2, is connected with a smoke collection cover 4 for collecting high-temperature smoke of the cupola furnace, and the smoke collection cover 4 is used for being sleeved on a chimney of the cupola furnace, and negative pressure is generated in the smoke collection cover 4 under the action of an exhaust fan 7, so that all the high-temperature smoke exhausted from the chimney of the cupola furnace is sucked.
Specifically, the position of the left side of the cylindrical heat preservation water tank 1 close to the bottom is connected with a water inlet pipe 10, the position of the right side of the cylindrical heat preservation water tank 1 close to the top is connected with a water outlet pipe 11, and electromagnetic valves 15 are arranged on the water inlet pipe 10 and the water outlet pipe 11 so as to control the input of cold water and the output of hot water.
Further, a drain pipe 12 is arranged at the bottom end of the outer wall of the cylindrical heat-preservation water tank 1, an electromagnetic valve 15 is also arranged on the drain pipe 12, and residual water in the cylindrical heat-preservation water tank 1 is discharged periodically.
Further, the device also comprises an exhaust fan 7 for exhausting flue gas, the output end of the electric-bag composite dust collector 6 is connected with the air inlet end of the exhaust fan 7 through a third smoke guide pipe 18, the air outlet end of the exhaust fan 7 is connected with a chimney 8 through a gas guide pipe, and the flue gas after secondary filtration is exhausted.
Furthermore, the air inlet end of the air inlet machine 13 is provided with an air inlet filtering mechanism 9, the air inlet filtering mechanism 9 comprises an air inlet pipe 90, a first particulate matter filtering plate 91 is arranged in the air inlet pipe 90 and at a position close to the right end, and a second particulate matter filtering plate 92 is arranged in the air inlet pipe 90 and at a position close to the left end, so that particulate matters in air are prevented from being input into the cupola furnace, and the content of the particulate matters in the smoke discharged by the cupola furnace is reduced.
Further, the filter pore size of the first particulate filter plate 91 is larger than that of the second particulate filter plate 92, so that the particulate matters in the air can be filtered.
Furthermore, the smoke returning pipe 19 is provided with a control valve 20 for controlling the smoke returning amount in the smoke returning pipe 19.
When the cupola energy-saving recycling device is used, an exhaust fan 7 and an air inlet fan 13 are started to work, under the action of the exhaust fan 7, a flue gas collecting cover 4 sucks all high-temperature flue gas exhausted from a chimney of the cupola, the high-temperature flue gas enters a spiral metal heat exchange tube 2 through a heat insulation smoke guide tube 3, the spiral metal heat exchange tube 2 can prolong the flowing time of the high-temperature flue gas in a cylindrical heat preservation water tank 1, the replacement of cold water in the cylindrical heat preservation water tank 1 and heat in the spiral metal heat exchange tube 2 is improved, the heat in the high-temperature flue gas is effectively utilized, the flue gas subjected to heat exchange enters a cyclone dust collector 5 through a first smoke guide tube 16, after the flue gas is subjected to dust removal treatment by the cyclone dust collector 5, a part of the flue gas enters an electric bag composite dust collector 6 through a second smoke guide tube 17, after secondary dust removal is carried out by the electric bag composite dust collector 6, the flue gas is conveyed to the exhaust chimney 8 and exhausted, the other part of the flue gas enters an air inlet pipe 14 of the cupola air inlet pipe 13, and is conveyed to a large amount of CO, and a small amount of energy is combusted in an inner cavity of the cupola, and a combustible gas is fully utilized, and a combustible gas is combusted in the cupola.
The foregoing shows and describes the basic principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. The utility model provides a cupola furnace energy-saving recycle device which characterized in that: the novel electric-bag composite dust collector comprises a cylindrical heat-preservation water tank (1), a cyclone dust collector (5), an electric-bag composite dust collector (6) and an air inlet machine (13), wherein a spiral metal heat exchange tube (2) is arranged in the cylindrical heat-preservation water tank (1), the input end of the spiral metal heat exchange tube (2) penetrates through the top of the inner wall of the cylindrical heat-preservation water tank (1) and is connected with a heat-insulation smoke guide tube (3), the output end of the spiral metal heat exchange tube (2) penetrates through the right side of the inner wall of the cylindrical heat-preservation water tank (1) and is connected with a first smoke guide tube (16), the output end of the first smoke guide tube (16) is connected with the input end of the cyclone dust collector (5), the output end of the cyclone dust collector (5) is connected with the input end of the electric-bag composite dust collector (6) through a second smoke guide tube (17), the air outlet end of the air inlet machine (13) is connected with an air inlet pipe (14) of the cupola furnace for conveying air to the cupola furnace, and the second smoke guide tube (17) is communicated with the air inlet pipe (14) of the cupola furnace through a smoke return tube (19).
2. The cupola furnace energy-saving recycling device according to claim 1, wherein: one end of the heat insulation smoke guide pipe (3) far away from the spiral metal heat exchange pipe (2) is connected with a smoke collection cover (4) used for collecting high-temperature smoke of the cupola furnace.
3. The cupola furnace energy-saving recycling device according to claim 1, wherein: the left side of cylindricality holding water box (1) and the position that is close to the bottom are connected with inlet tube (10), the right side of cylindricality holding water box (1) and the position that is close to the top are connected with outlet pipe (11), all be equipped with solenoid valve (15) on inlet tube (10) and outlet pipe (11).
4. The cupola furnace energy-saving recycling device according to claim 1, characterized in that: the bottom of the outer wall of the cylindrical heat-insulating water tank (1) is provided with a sewage discharge pipe (12), and the sewage discharge pipe (12) is also provided with an electromagnetic valve (15).
5. The cupola furnace energy-saving recycling device according to claim 1, wherein: still including exhaust fan (7) that is used for the exhaust flue gas, the output of electric bag composite dust remover (6) is connected through third smoke guide pipe (18) and the air inlet end of exhaust fan (7), the air-out end of exhaust fan (7) is connected with chimney (8) of discharging fume through the air duct.
6. The cupola furnace energy-saving recycling device according to claim 1, wherein: the air inlet end of air inlet machine (13) is equipped with air inlet filter mechanism (9), air inlet filter mechanism (9) are including air-supply line (90), just be close to the position of right-hand member in air-supply line (90) and be equipped with first particulate matter filter (91), just be close to the position of left end in air-supply line (90) and be equipped with second particulate matter filter (92).
7. The cupola furnace energy-saving recycling device according to claim 6, wherein: the filter pore size of the first particulate filter plate (91) is larger than that of the second particulate filter plate (92).
8. The cupola furnace energy-saving recycling device according to claim 1, wherein: the smoke returning pipe (19) is provided with a control valve (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222182353.0U CN218120572U (en) | 2022-08-18 | 2022-08-18 | Energy-saving recycling device for cupola furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222182353.0U CN218120572U (en) | 2022-08-18 | 2022-08-18 | Energy-saving recycling device for cupola furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218120572U true CN218120572U (en) | 2022-12-23 |
Family
ID=84524797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222182353.0U Active CN218120572U (en) | 2022-08-18 | 2022-08-18 | Energy-saving recycling device for cupola furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218120572U (en) |
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2022
- 2022-08-18 CN CN202222182353.0U patent/CN218120572U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: An energy-saving and recycling device for a cupola Granted publication date: 20221223 Pledgee: Bank of Jinhua Limited by Share Ltd. Pledgor: JINHUA YALUN MACHINERY CO.,LTD. Registration number: Y2024980010240 |