CN211291082U - Cupola furnace for recycling flue gas - Google Patents
Cupola furnace for recycling flue gas Download PDFInfo
- Publication number
- CN211291082U CN211291082U CN201922408576.2U CN201922408576U CN211291082U CN 211291082 U CN211291082 U CN 211291082U CN 201922408576 U CN201922408576 U CN 201922408576U CN 211291082 U CN211291082 U CN 211291082U
- Authority
- CN
- China
- Prior art keywords
- furnace
- circulating pipe
- flue gas
- cupola
- filter screen
- 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.)
- Expired - Fee Related
Links
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 22
- 239000003546 flue gas Substances 0.000 title claims abstract description 22
- 238000004064 recycling Methods 0.000 title claims description 12
- 239000002893 slag Substances 0.000 claims abstract description 8
- 238000001914 filtration Methods 0.000 claims description 15
- 238000005192 partition Methods 0.000 claims description 7
- 239000007789 gas Substances 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 7
- 239000002184 metal Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 238000002485 combustion reaction Methods 0.000 description 4
- 239000003245 coal Substances 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 238000007790 scraping Methods 0.000 description 3
- 229910001018 Cast iron Inorganic materials 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 239000002817 coal dust Substances 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 239000002923 metal particle Substances 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000009413 insulation Methods 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
- 239000002699 waste material Substances 0.000 description 1
Images
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- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
Abstract
The utility model discloses a flue gas recycle cupola belongs to cupola technical field, including the crucible, the gap bridge is installed to one side of crucible, and the one end that the crucible was kept away from to the gap bridge is provided with the forehearth, the bottom of forehearth is provided with the slag notch, and the top of forehearth is provided with the tap hole, the top of crucible is provided with the waist stove, and the top of waist stove is provided with the top stove, the top of top stove is provided with the spark cover, and one side of top stove is provided with the feed inlet, the interior top of top stove is provided with the heat exchanger. The utility model discloses two parts can be cut apart into with the inside cavity of top furnace to the setting of top furnace inside baffle, and preliminary heat transfer can be carried out earlier to the inside heat exchanger of cooperation top furnace, then gas filters through first circulating pipe, crosses filter bin, second circulating pipe and enters into the inside of a set of cavity in addition with gas circulation to carry out the secondary heat transfer through the heat exchanger, improved the effect of changeing heat, increased thermal utilization ratio.
Description
Technical Field
The utility model relates to a cupola furnace, in particular to a flue gas recycling cupola furnace, which belongs to the technical field of cupola furnaces.
Background
The cupola furnace is an important device for melting cast iron in casting production, a cast iron block is melted into paste water and then cast into a sand mould, and the sand mould is cooled and then opened to obtain a casting, the cupola furnace is a vertical cylindrical smelting furnace and comprises a front furnace and a rear furnace, wherein the front furnace comprises an iron outlet, a slag outlet, a furnace cover front furnace cylinder and a gap bridge, the rear furnace comprises three parts, a top furnace, a waist furnace and a furnace cylinder, and the furnace cover is upwards opened and is called the cupola furnace;
and in the use of cupola, traditional furnace body does not possess the function that the flue gas was retrieved, need set up professional equipment so that carry out the flue gas recovery specially, and after retrieving through flue gas recovery unit, the heat that the cupola contains wherein is by whole loss, has reduced the utilization ratio of the energy, and has increased the use cost of cupola in adopting extra equipment intangible, and the while is comparatively inconvenient to the cyclic utilization of the buggy in the flue gas and iron powder, consequently, the utility model provides a flue gas recycle cupola is in order to solve the problem that exists among the prior art.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims at providing a flue gas recycle cupola to solve the problem that does not possess flue gas recovery and waste recycling among the prior art.
The purpose of the utility model can be achieved by adopting the following technical scheme:
a cupola furnace for recycling flue gas comprises a furnace hearth, wherein a gap bridge is installed on one side of the furnace hearth, a forehearth is arranged at one end, away from the furnace hearth, of the gap bridge, a slag outlet is formed in the bottom of the forehearth, an iron outlet is formed in the top of the forehearth, a waist furnace is arranged at the top of the furnace hearth, a top furnace is arranged at the top of the waist furnace, a spark cover is arranged at the top of the top furnace, a feed inlet is formed in one side of the top furnace, a heat exchanger is arranged at the inner top of the top furnace, an air inlet pipe is arranged at one side, away from the feed inlet, of the heat exchanger, an exhaust pipe is arranged at one side, away from the air inlet pipe, of the heat exchanger, the bottom end of the exhaust pipe is communicated with the interior of the waist furnace, a partition plate is arranged in the vertical direction in the top furnace, a filter bin, the first circulating pipe and the second circulating pipe are communicated with the interior of the top furnace, and the communicated positions of the first circulating pipe and the second circulating pipe are respectively positioned on two sides of the partition plate.
Preferably: the filter house is characterized in that a filter screen is arranged at the inner top of the filter house, and a fan is arranged at the bottom of the filter screen.
Preferably: the filter screen is characterized in that sliding grooves are formed in two ends of the top of the filter screen, scraping plates are mounted between the sliding grooves through sliding blocks, a telescopic cylinder is hinged to the inner top of the filter bin, the output end of the telescopic cylinder is hinged to the scraping plates, and a discharge port is formed in the filter bin.
Preferably: the inclination angle between filter screen and the horizontal plane is 30, and the bottom of filter screen is towards the discharge port.
Preferably: and a third circulating pipe is arranged on the outer side of the discharge port, the top end of the third circulating pipe is fixed on the filtering bin, and the bottom end of the third circulating pipe is communicated with the inner bottom of the top furnace.
Preferably: and a heat insulation layer is arranged on the outer side of the exhaust pipe.
The utility model has the advantages that:
the utility model provides a pair of flue gas recycle cupola, the setting of the inside baffle of top furnace, can cut apart into two parts with the inside cavity of top furnace, the inside heat exchanger of cooperation top furnace, can carry out preliminary heat transfer earlier, then gaseous through first circulating pipe, filter the storehouse, the second circulating pipe filters and the inside that gas circulation entered into another set of cavity, and carry out the secondary heat transfer through the heat exchanger, the effect of changeing heat has been improved, the thermal utilization ratio has been increased, filter the setting of the inside filter screen of storehouse, can filter metal granule and buggy in the gas, and cooperate the scraper blade to scrape and get, the jam of filter screen has been avoided effectively, and simultaneously, cooperation third circulating pipe uses, can use buggy and metal granule circulation to the internal recycle of top furnace, the recycle ratio of flue gas has been ensured, the practicality is higher.
Drawings
Fig. 1 is a front sectional view of the present invention;
FIG. 2 is a diagram of a filtering chamber of the present invention;
fig. 3 is a front view of the present invention.
In the figure: 1-hearth, 2-gap bridge, 3-forehearth, 4-tap hole, 5-slag hole, 6-waist furnace, 7-top furnace, 8-spark cover, 9-feed inlet, 10-heat exchanger, 11-air inlet pipe, 12-air outlet pipe, 13-partition plate, 14-filtering bin, 15-first circulating pipe, 16-second circulating pipe, 17-filter screen, 18-chute, 19-scraper, 20-telescopic cylinder, 21-discharge port, 22-third circulating pipe and 23-fan.
Detailed Description
In order to make the technical solutions of the present invention clearer and clearer for those skilled in the art, the present invention will be described in further detail with reference to the following embodiments and drawings, but the embodiments of the present invention are not limited thereto.
As shown in fig. 1-3, the embodiment provides a flue gas recycling cupola furnace, which includes a furnace hearth 1, a gap bridge 2 is installed on one side of the furnace hearth 1, a front furnace 3 is installed on one end of the gap bridge 2 away from the furnace hearth 1, a slag outlet 5 is installed on the bottom of the front furnace 3, a tap hole 4 is installed on the top of the front furnace 3, a waist furnace 6 is installed on the top of the furnace hearth 1, a top furnace 7 is installed on the top of the waist furnace 6, a spark cover 8 is installed on the top of the top furnace 7, a feed inlet 9 is installed on one side of the top furnace 7, a heat exchanger 10 is installed on the inner top of the top furnace 7, an air inlet pipe 11 is installed on one side of the heat exchanger 10 away from the feed inlet pipe 11, an exhaust pipe 12 is installed on one side of the heat exchanger 10 away from the air inlet pipe 11, the bottom end of the exhaust pipe 12 is communicated with the inside of the waist furnace, and a first circulating pipe 15 is arranged at the top of the filtering bin 14, a second circulating pipe 16 is arranged at the bottom of the filtering bin 14, the first circulating pipe 15 and the second circulating pipe 16 are both communicated with the inside of the top furnace 7, and the communicated positions of the first circulating pipe 15 and the second circulating pipe 16 are respectively positioned at two sides of the partition plate 13.
In the embodiment, as shown in fig. 2, a filter screen 17 is disposed at the inner top of the filter bin 14, a fan 23 is disposed at the bottom of the filter screen 17, the start of the fan 23 is used to accelerate the extraction rate of the flying object, and the filter 17 is used to accelerate the filtering.
In this embodiment, as shown in fig. 2, sliding grooves 18 are formed at both ends of the top of the filter screen 17, scrapers 19 are mounted between the sliding grooves 18 through sliding blocks, a telescopic cylinder 20 is hinged to the inner top of the filter bin 14, an output end of the telescopic cylinder 20 is hinged to the scrapers 19, a discharge port 21 is formed in the filter bin 14, the telescopic cylinder 20 is started to drive the scrapers 19 to move, scraping is performed on the surface of the filter screen 17, pulverized coal and metal particles accumulated on the surface of the filter screen 17 are removed, and a filtering effect is ensured.
In this embodiment, as shown in fig. 2, the inclination angle between the filter 17 and the horizontal plane is 30 °, and the bottom end of the filter 17 faces the discharge port 21, so that the dust can be discharged conveniently by the inclination of the filter 17.
In the present embodiment, as shown in fig. 1 and 2, a third circulating pipe 22 is provided outside the discharge port 21, and the top end of the third circulating pipe 22 is fixed on the filtering bin 14, and the bottom end of the third circulating pipe 22 is communicated with the inner bottom of the top furnace 7, and the scraped dust falls into the third circulating pipe 22 and reenters the inner part of the top furnace 7 for combustion, so as to ensure the utilization rate of metal and pulverized coal.
In this embodiment, as shown in fig. 1, an insulating layer is disposed outside the exhaust pipe 12 to prevent heat dissipation.
As shown in fig. 1 to fig. 3, the present embodiment provides a cupola furnace with flue gas recycling as follows:
step 1: when the device is used, coal and metal are introduced into the waist furnace 6 through the feed inlet 9 to be combusted, molten iron generated by combustion enters the front furnace 3 through the furnace cylinder 1 and is discharged through the tap hole 4, slag ash in the attached water is discharged from the slag hole 5, and gas generated in the combustion process firstly passes through the heat exchanger 10 to be cooled due to the obstruction of the partition plate 13, then enters the inside of the filter bin 14 through the conduction of the first circulating pipe 15, is filtered by the filter screen 17, and enters the inside of the top furnace 7 again through the second circulating pipe 16 to be cooled through the heat exchanger 10 again and then is discharged into the air;
step 2: after long-time filtration, the telescopic cylinder 20 is started to drive the scraper 19 to move, the scraper is scraped from the surface of the filter screen 17, the coal dust and metal particles accumulated on the surface of the filter screen 17 are removed, the scraped dust falls into the third circulating pipe 22 and enters the top furnace 7 again for combustion, and the utilization rate of the metal and the coal dust is ensured.
The above description is only a further embodiment of the present invention, but the scope of protection of the present invention is not limited thereto, and any person skilled in the art can replace or change the technical solution and the concept of the present invention within the scope of the present invention.
Claims (6)
1. The utility model provides a flue gas recycle cupola furnace which characterized in that: comprises a furnace hearth (1), wherein a gap bridge (2) is installed on one side of the furnace hearth (1), a forehearth (3) is arranged at one end, far away from the furnace hearth (1), of the gap bridge (2), a slag outlet (5) is arranged at the bottom of the forehearth (3), a tap hole (4) is arranged at the top of the forehearth (3), a waist furnace (6) is arranged at the top of the furnace hearth (1), a top furnace (7) is arranged at the top of the waist furnace (6), a spark cover (8) is arranged at the top of the top furnace (7), a feed inlet (9) is arranged at one side of the top furnace (7), a heat exchanger (10) is arranged at the inner top of the top furnace (7), an air inlet pipe (11) is arranged at one side, far away from the feed inlet (9), of the heat exchanger (10) is provided with an exhaust pipe (12), the bottom end of the exhaust pipe (12) is communicated with the interior of the waist furnace (, a partition plate (13) is arranged in the top furnace (7) in the vertical direction, a filtering bin (14) is arranged on the outer side of the top furnace (7), a first circulating pipe (15) is arranged at the top of the filtering bin (14), a second circulating pipe (16) is arranged at the bottom of the filtering bin (14), the first circulating pipe (15) and the second circulating pipe (16) are communicated with the inside of the top furnace (7), and the conducting positions of the first circulating pipe (15) and the second circulating pipe (16) are respectively located on two sides of the partition plate (13).
2. The cupola furnace for recycling flue gas according to claim 1, wherein: the filter is characterized in that a filter screen (17) is arranged at the inner top of the filter bin (14), and a fan (23) is arranged at the bottom of the filter screen (17).
3. The cupola furnace for recycling flue gas according to claim 2, wherein: spout (18) have all been seted up at the both ends at filter screen (17) top, and install scraper blade (19) through the slider between spout (18), the interior top of filtering storehouse (14) articulates there is telescopic cylinder (20), and telescopic cylinder's (20) output and scraper blade (19) are articulated, be provided with discharge port (21) on filtering storehouse (14).
4. The cupola furnace for recycling flue gas according to claim 2, wherein: the inclination angle between filter screen (17) and the horizontal plane is 30, and the bottom of filter screen (17) is towards discharge port (21).
5. The cupola furnace for recycling flue gas according to claim 3, wherein: a third circulating pipe (22) is arranged on the outer side of the discharge port (21), the top end of the third circulating pipe (22) is fixed on the filtering bin (14), and the bottom end of the third circulating pipe (22) is communicated with the inner bottom of the top furnace (7).
6. The cupola furnace for recycling flue gas according to claim 1, wherein: and a heat-insulating layer is arranged on the outer side of the exhaust pipe (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922408576.2U CN211291082U (en) | 2019-12-28 | 2019-12-28 | Cupola furnace for recycling flue gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922408576.2U CN211291082U (en) | 2019-12-28 | 2019-12-28 | Cupola furnace for recycling flue gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211291082U true CN211291082U (en) | 2020-08-18 |
Family
ID=72014299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922408576.2U Expired - Fee Related CN211291082U (en) | 2019-12-28 | 2019-12-28 | Cupola furnace for recycling flue gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211291082U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113102462A (en) * | 2021-04-14 | 2021-07-13 | 新环能(晋江)再生资源有限公司 | Waste incineration slag treatment production line |
| CN114273375A (en) * | 2021-04-14 | 2022-04-05 | 新环能(晋江)再生资源有限公司 | Waste incineration slag treatment process |
-
2019
- 2019-12-28 CN CN201922408576.2U patent/CN211291082U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113102462A (en) * | 2021-04-14 | 2021-07-13 | 新环能(晋江)再生资源有限公司 | Waste incineration slag treatment production line |
| CN114273375A (en) * | 2021-04-14 | 2022-04-05 | 新环能(晋江)再生资源有限公司 | Waste incineration slag treatment process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200818 |