CN112344752A - Novel filtering structure for dust collection in non-ferrous metal smelting - Google Patents
Novel filtering structure for dust collection in non-ferrous metal smelting Download PDFInfo
- Publication number
- CN112344752A CN112344752A CN202011219426.8A CN202011219426A CN112344752A CN 112344752 A CN112344752 A CN 112344752A CN 202011219426 A CN202011219426 A CN 202011219426A CN 112344752 A CN112344752 A CN 112344752A
- Authority
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- China
- Prior art keywords
- pipe
- furnace
- air
- dust collection
- flue gas
- 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.)
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- 239000000428 dust Substances 0.000 title claims abstract description 26
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 21
- 239000002184 metal Substances 0.000 title claims abstract description 21
- 238000003723 Smelting Methods 0.000 title claims abstract description 19
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 title claims abstract description 8
- 238000001914 filtration Methods 0.000 title claims description 8
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000003546 flue gas Substances 0.000 claims abstract description 26
- 238000010521 absorption reaction Methods 0.000 claims abstract description 15
- 239000011229 interlayer Substances 0.000 claims abstract description 9
- 238000005192 partition Methods 0.000 claims abstract description 4
- 238000009856 non-ferrous metallurgy Methods 0.000 claims 4
- 238000002485 combustion reaction Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 230000005686 electrostatic field Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/008—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases cleaning gases
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L15/00—Heating of air supplied for combustion
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The invention provides a novel filter structure for dust collection in non-ferrous metal smelting, which comprises a furnace body, a furnace pipe arranged in the furnace body, a flue gas air pipe, a preheated air pipe and an air preheater, wherein the top of the furnace body and the furnace pipe is opened, and a furnace cover is sealed at the top opening of the furnace body; the flue gas air pipe and the preheated air pipe are arranged in an interlayer between the furnace body and the furnace pipe and encircle the two sides of the furnace body, and the flue gas air pipe and the preheated air pipe are communicated with the top end of the furnace pipe; the air preheater is arranged at the bottom of the furnace, the air preheater comprises a rotor and blades, the blades are arranged on the rotor in a surrounding manner, a partition plate is arranged in the middle of the air preheater to divide the air preheater into a heat absorption area and a heat release area, the bottom end of a flue gas air pipe is communicated with the heat absorption area, and the bottom end of a preheated air pipe is communicated with the heat release area; an air inlet pipe is arranged below the heat absorption area, an exhaust pipe is arranged below the heat release area, and electrostatic dust collection devices composed of a plurality of metal plates arranged at intervals are respectively arranged in the air inlet pipe and the exhaust pipe.
Description
Technical Field
The invention relates to the field of metallurgical industry, in particular to a novel filter structure for dust collection in non-ferrous metal smelting.
Background
The smelting furnace is a novel high-efficiency energy-saving furnace developed according to the smelting process, can well meet the requirements of strict alloy component requirements, discontinuous production, large single-furnace capacity and the like in the non-ferrous metal smelting process, achieves the effects of reducing consumption, reducing burning loss, improving product quality, reducing labor intensity, improving labor conditions and improving production efficiency, and is suitable for batch operation and smelting with more alloy and scrap returns.
The smelting furnace generally comprises a furnace body and a furnace liner, wherein the furnace body is sleeved in the furnace liner, an interlayer is formed in a hollow part between the furnace body and the furnace liner, an air preheater and an interlayer air channel are adopted in the interlayer, the air preheater well absorbs the waste heat of flue gas, preheated air enters the interlayer air channel of the furnace shell to further preheat and heat, the ambient temperature is relatively increased, the heat dissipation of the furnace shell is reduced, and the combustion efficiency, the combustion intensity, the flame temperature and the flame speed can be improved after the air is preheated, so that the circulation and the heating speed of furnace gas are enhanced.
In the process of non-ferrous metal smelting, dust in the air easily causes differences in color and hardness of finished products, so that strict dust isolation is generally required in the smelting process.
Disclosure of Invention
The present invention aims to overcome the above-mentioned shortcomings and provide a technical solution to solve the above-mentioned problems.
The novel filter structure for dust collection in non-ferrous metal smelting comprises a furnace body, a furnace pipe arranged in the furnace body, a flue gas air pipe, a preheated air pipe and an air preheater;
the top openings of the furnace body and the furnace pipe are sealed with a furnace cover;
the flue gas air pipe and the preheated air pipe are arranged in an interlayer between the furnace body and the furnace pipe and encircle the two sides of the furnace body, and the flue gas air pipe and the preheated air pipe are communicated with the top end of the furnace pipe;
the air preheater is arranged at the bottom of the furnace, the air preheater comprises a rotor and blades, the blades are arranged on the rotor in a surrounding manner, a partition plate is arranged in the middle of the air preheater to divide the air preheater into a heat absorption area and a heat release area, the bottom end of a flue gas air pipe is communicated with the heat absorption area, and the bottom end of a preheated air pipe is communicated with the heat release area;
an air inlet pipe is arranged below the heat absorption area, an exhaust pipe is arranged below the heat release area, and electrostatic dust collection devices composed of a plurality of metal plates arranged at intervals are respectively arranged in the air inlet pipe and the exhaust pipe, wherein two adjacent metal plates are respectively provided with positive charges and negative charges.
Furthermore, air filter screens are arranged at the upper end and the lower end of the flue gas air pipe and the preheated air pipe.
Furthermore, a flow guide lug is arranged at the bottom of the furnace cover.
Furthermore, the upper edge of the blade is provided with a bent sheet integrated with the blade.
Furthermore, a blower fan with an upward wind direction is arranged in the air inlet pipe.
Furthermore, an exhaust fan with a downward wind direction is arranged in the exhaust pipe.
Compared with the prior art, the invention has the following beneficial effects: the electrostatic dust collection device is novel in structure, and can isolate dust in the air and avoid the adverse effect of the dust on the metal smelting quality.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of an interlayer air duct of a smelting furnace according to the present invention;
FIG. 2 is a cross-sectional view taken at A of FIG. 1;
FIG. 3 is a schematic view of an air preheater according to the present invention;
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, the novel filtering structure for dust collection in nonferrous metal smelting comprises a furnace body 1, a furnace pipe 2 arranged in the furnace body 1, a flue gas air pipe 3, a preheated air pipe 4 and an air preheater 5;
the top openings of the furnace body 1 and the furnace pipe 2 are sealed, and a furnace cover 11 is sealed at the top opening of the furnace body 1;
the flue gas air pipe 3 and the preheated air pipe 4 are arranged in an interlayer between the furnace body 1 and the furnace pipe 2 and encircle the two sides of the furnace body 1, and the flue gas air pipe 3 and the preheated air pipe 4 are communicated with the top end of the furnace pipe 2;
the air preheater 5 is arranged at the bottom of the furnace pipe 2, the air preheater 5 comprises a rotor 51 and blades 52, the blades 52 are arranged on the rotor 51 in a surrounding manner, a partition plate 53 is arranged in the middle of the air preheater 5 to divide the air preheater 5 into a heat absorption area and a heat release area, the bottom end of the flue gas air pipe 3 is communicated with the heat absorption area, and the bottom end of the preheated air pipe 4 is communicated with the heat release area;
an air inlet pipe 6 is arranged below the heat absorption area, an exhaust pipe 7 is arranged below the heat release area, and electrostatic dust collection devices 8 composed of a plurality of metal plates arranged at intervals are respectively arranged in the air inlet pipe 6 and the exhaust pipe 7, wherein two adjacent metal plates are respectively provided with positive charges and negative charges. Through setting up electrostatic dust extraction 8, because two adjacent metal plates take positive charge, negative charge, form an electrostatic field, the dust in the air is through this electrostatic field, adsorbed on the metal sheet under the effect of electric field force, and dust in the isolation air avoids the dust to cause harmful effects to the metal smelting quality.
Furthermore, the upper end and the lower end of the flue gas air pipe 3 and the upper end and the lower end of the preheated air pipe 4 are both provided with air filter screens, so that dust is further isolated.
Furthermore, a diversion bump 111 is arranged at the bottom of the furnace cover 11, the preheated air of the preheated air duct 4 is diverted downwards, and the preheated air circulates in the furnace pipe 2 for a circle and then returns to the diversion bump 111 and is discharged from the flue gas duct 3, so that the purpose of energy conversion is achieved.
Furthermore, the upper edge of the blade 52 is provided with an integrated bent sheet 521, so that the retention time of air on the blade 52 is prolonged, and the heat absorption and release efficiency is improved.
Further, a blower fan 61 is provided in the air inlet duct 6 so as to be directed upward.
Further, an exhaust fan 71 having a downward wind direction is provided in the exhaust duct 7.
The working principle of the invention is as follows: high-temperature flue gas generated during aluminum melting in the furnace body 1 enters the flue gas air pipe 3 through a flue gas outlet and then is transmitted to a heat absorption area of the air preheater 5, blades 52 on the air preheater 5 absorb and store heat in the high-temperature flue gas, and cooled flue gas after releasing the heat is finally discharged into the air through the exhaust pipe 7; when the blades 52 are transferred from the heat absorption area to the heat release area, the air entering from the air inlet pipe 6 absorbs heat from the blades 52 to form high-temperature air, the high-temperature air enters the preheated air pipe 4 and finally enters the furnace body 1 through the preheated air inlet, the temperature is further preheated and increased, the ambient temperature is relatively increased, the heat dissipation of the smelting furnace is reduced, the combustion efficiency, the combustion intensity, the flame temperature and the flame speed are increased, and the furnace gas circulation and the temperature increase speed are enhanced.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (6)
1. The novel filtering structure for dust collection in non-ferrous metal smelting comprises a furnace body, a furnace pipe arranged in the furnace body, a flue gas air pipe, a preheated air pipe and an air preheater, and is characterized in that,
the top openings of the furnace body and the furnace pipe are sealed with a furnace cover;
the flue gas air pipe and the preheated air pipe are arranged in an interlayer between the furnace body and the furnace pipe and encircle the two sides of the furnace body, and the flue gas air pipe and the preheated air pipe are communicated with the top end of the furnace pipe;
the air preheater is arranged at the bottom of the furnace, the air preheater comprises a rotor and blades, the blades are arranged on the rotor in a surrounding manner, a partition plate is arranged in the middle of the air preheater to divide the air preheater into a heat absorption area and a heat release area, the bottom end of a flue gas air pipe is communicated with the heat absorption area, and the bottom end of a preheated air pipe is communicated with the heat release area;
an air inlet pipe is arranged below the heat absorption area, an exhaust pipe is arranged below the heat release area, and electrostatic dust collection devices composed of a plurality of metal plates arranged at intervals are respectively arranged in the air inlet pipe and the exhaust pipe, wherein two adjacent metal plates are respectively provided with positive charges and negative charges.
2. The novel filtering structure for dust collection in nonferrous metal smelting according to claim 1, wherein air filtering nets are arranged at the upper end and the lower end of the flue gas air pipe and the preheated air pipe.
3. The novel filter structure for dust collection in nonferrous metallurgy according to claim 1, wherein a flow guide projection is provided at the bottom of the furnace cover.
4. The new filter structure for dust collection in nonferrous metallurgy according to claim 1, wherein the upper edge of the blade is provided with a bent piece integrated therewith.
5. The new filtering structure for dust collection in nonferrous metallurgy according to claim 1, wherein a blower fan is provided in the air inlet duct so as to blow air upward.
6. The new filtering structure for dust collection in nonferrous metallurgy according to claim 1, wherein the exhaust duct is provided with an exhaust fan with a downward wind direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011219426.8A CN112344752A (en) | 2020-11-04 | 2020-11-04 | Novel filtering structure for dust collection in non-ferrous metal smelting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011219426.8A CN112344752A (en) | 2020-11-04 | 2020-11-04 | Novel filtering structure for dust collection in non-ferrous metal smelting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112344752A true CN112344752A (en) | 2021-02-09 |
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ID=74429991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011219426.8A Pending CN112344752A (en) | 2020-11-04 | 2020-11-04 | Novel filtering structure for dust collection in non-ferrous metal smelting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112344752A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202254726U (en) * | 2011-05-30 | 2012-05-30 | 广西壮族自治区桂林茶叶科学研究所 | Flue gas waste heat recoverer |
| CN203963954U (en) * | 2014-07-04 | 2014-11-26 | 代元军 | Utilize tail gas from incinerator to add the heat recovery device of hot-air |
| CN207132737U (en) * | 2017-06-23 | 2018-03-23 | 江苏省冶金设计院有限公司 | A kind of closed vessel furnace furnace gas recovery and cleaning treatment system |
| CN209820139U (en) * | 2019-01-21 | 2019-12-20 | 恩平市俐德自动化设备有限公司 | Interlayer air pipe of aluminum melting furnace |
-
2020
- 2020-11-04 CN CN202011219426.8A patent/CN112344752A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202254726U (en) * | 2011-05-30 | 2012-05-30 | 广西壮族自治区桂林茶叶科学研究所 | Flue gas waste heat recoverer |
| CN203963954U (en) * | 2014-07-04 | 2014-11-26 | 代元军 | Utilize tail gas from incinerator to add the heat recovery device of hot-air |
| CN207132737U (en) * | 2017-06-23 | 2018-03-23 | 江苏省冶金设计院有限公司 | A kind of closed vessel furnace furnace gas recovery and cleaning treatment system |
| CN209820139U (en) * | 2019-01-21 | 2019-12-20 | 恩平市俐德自动化设备有限公司 | Interlayer air pipe of aluminum melting furnace |
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