CN104266497A - Exhaust device of iron alloy furnace - Google Patents
Exhaust device of iron alloy furnace Download PDFInfo
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- CN104266497A CN104266497A CN201410509331.8A CN201410509331A CN104266497A CN 104266497 A CN104266497 A CN 104266497A CN 201410509331 A CN201410509331 A CN 201410509331A CN 104266497 A CN104266497 A CN 104266497A
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- cooling water
- water channel
- exhaust apparatus
- exhaust device
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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
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- Vertical, Hearth, Or Arc Furnaces (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The invention discloses an exhaust device of an iron alloy furnace. The exhaust device of the iron alloy furnace comprises exhaust device components which are assembled into multiple units, and cooling water channels, wherein the cooling water channels are directly arranged inside main bodies of the exhaust device components in each unit; every two of the cooling water channels distributed on the exhaust device components in each unit form a group; each group of the cooling water channels has an inlet and an outlet; the outlet of each group of the cooling water channels and the inlet of one adjacent group of cooling water channels are connected into respectively independent circulating cooling water channel one each side through a connecting pipe. Therefore, the exhaust device of the iron alloy furnace solves the problems that the heat radiation capability of a flue is low, and the production efficiency and the service life are reduced as the traditional cooling water channels adopting a welding way are easy to leak.
Description
Technical field
The present invention relates to the equipment that a kind of electric furnace collects flue gas and combustion product, more specifically to a kind of ferro-alloy furnace exhaust apparatus, for the flue for electric furnace of electric furnace smoke gas purification system and residual neat recovering system.
Background technology
Electric furnace is that a kind of electrocaloric effect that utilizes realizes expection technique object as the industrial furnace of the smelting, fusing, heating, heat treatment, sintering, oven dry etc. of material, main Types comprises resistance furnace, induction furnace, electric arc furnaces, vacuum arc furnace ignition, plasma heating furnace, electron beam furnace, electrothermal furnace etc., is widely used in multiple field such as chemical industry, metallurgy.
Ferro-alloy furnace exhaust apparatus be mainly used in electric furnace smoke gas purification system and residual neat recovering system to collect flue gas and combustion product.The flue-gas temperature produced due to electric furnace is high, and containing a large amount of dust, therefore working environment very severe residing for exhaust apparatus bottom, exhaust apparatus is constantly subject to the high temperature corrosion with gas of washing away of dust.
At present, ferro-alloy furnace exhaust apparatus adopts the board-like or solid matter tubular type of water-cooling jacket usually.The material of the board-like exhaust apparatus of water-cooling jacket is steel plate, be welded to form by inwall, outer wall and a point water plate, cooling water is carried constantly in the chilled(cooling) water return (CWR) formed at isolated multiple cavity of inwall and outer wall by point water plate, make inwall and cooling water carry out heat trnasfer, avoid losing efficacy because exhaust apparatus is overheated.But in actual applications, Water cooling jacket type exhaust apparatus also exists following shortcoming:
(1) vent material is steel, and thermal conductivity is low.
(2) be difficult to be formed a perfect water route in chuck by point water plate and the welding manner of inside and outside wall, cause water-flow equation inequality.The place large at weld defect easily produces current dead angle, makes hot-spot even cause cooling water to be vaporized.
(3) weld seam quantity is too many, and thermal stress is large and uneven, and in Long-Time Service process, stress can sharply increase, and easily produces local and leaks and ftracture, cause electric furnace blowing out to keep in repair.
(4) because welded-steel plate construction limit, cross section, water route is comparatively large, then low, the easy fouling of water velocity, is not easily vented.
In addition, solid matter tubular type exhaust apparatus becomes cooling leg by many water-cooled steel pipe dense set, adopts continuous welding to form between water-cooled steel pipe.Cooling water channel is made up of several subloops, shares a pair always water supply, return pipe.Occur that the thermal conductivity of steel pipe is low equally, solid matter water-cooled steel pipe quantity is many, and water consumption is large, and inner easily dust stratification, scale effect heat conduction, weld seam quantity is too many.In addition limit the release of heat expansion amount owing to strengthening gusset, flange and steel-pipe welding, thermal stress is large and uneven, easily causes steel pipe to be torn and leaks, and greatly reduces the service life of flue.
In sum, usually adopt the parts of One's name is legion by connected modes such as welding for ferro-alloy furnace exhaust apparatus, a large amount of assembling parts is become a joint exhaust apparatus unit, and then these exhaust apparatus unit are assembled into an exhaust apparatus.The problem of its basic general character is, owing to adopting too much parts to carry out assembly welding, cause structure too complicated, structural design is also unreasonable, thus has had a strong impact on the result of use of exhaust apparatus, is difficult to service life be guaranteed.
Summary of the invention
In view of above-mentioned present situation, the invention provides a kind of ferro-alloy furnace exhaust apparatus, solve the conventional art flue that too much adopts Steel material to make and result in complex structure, the shortcoming such as weld seam is too much, heat conductivility is poor, easy damage, life-span are short.
Technical solution of the present invention is, a kind of ferro-alloy furnace exhaust apparatus, comprises and is assembled into multiunit exhaust apparatus assembly, and cooling water channel; Wherein said cooling water channel is the body interior of the exhaust apparatus assembly being set directly at each unit, and every two of the cooling water channel be distributed on the exhaust apparatus assembly of each unit is divided into one group, each group cooling water channel has one and enters, export, and wherein each is organized outlet of cooling water channel and the entrance of adjacent one group of cooling water channel and connects into every side independently circulating cooling water channel separately by tube connector.
In the present invention, it is airtight quadrangle that the exhaust apparatus assembly of each unit described forms cross section by the copper coin splicing of varying number.
Further, the cooling water channel cross section on the exhaust apparatus assembly of each unit is single circular port, two crossing circular ports, or three crossing circular ports.
The beneficial effect that the present invention has is, has not only changed copper sheet material and has also improved the structural design of cooling water channel.Therefore, it is possible to significantly improve the capacity of heat transmission of flue, and flue is not easy to damage, and the service life of flue significantly increases, the effective production efficiency ensureing electric furnace.In addition, cooling water channel is straight forming on copper coin, solves conventional art and adopts welding technology, thus solve the problem of leaking with repair welding, make its structure become simple, is easier to manufacture.
accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is Fig. 1 first row topology view;
Fig. 3 is the cooling water channel cross sectional view of Fig. 1 exhaust apparatus assembly;
Fig. 4, Fig. 5 are the embodiments that Fig. 3 is different.
detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the invention will be further described.
A kind of ferro-alloy furnace exhaust apparatus as shown in Figure 1 to Figure 3, comprises and is assembled into multiunit first row to the 3rd exhaust apparatus assembly 1-3 arranged and cooling water channel 4 and 5 formation.Multiunit exhaust apparatus assembly that the present embodiment adopts, comprises first row device of air assembly 1, described first row device of air assembly 1 is provided with second row device of air assembly 2 and the 3rd exhaust apparatus assembly 3 successively.In the present invention, described cooling water channel 4 and 5 be directly at first row to every side of the body interior of the exhaust apparatus assembly 1-3 of the 3rd row, each row has four sides.And be distributed in first row to the 3rd row gas deflation assembly 1-3 on every two of cooling water channel 4 and 5 be divided into one group, each group cooling water channel 4 and 5 has one and enters, export 6,8 and 7,9, and wherein each is organized outlet 7 of cooling water channel and the entrance 8 of adjacent one group of cooling water channel and connects into every side independently circulating cooling water channel separately by tube connector 10.First row device of air assembly 1 described in the present embodiment is spliced by four copper coins and forms.The cross section of first row device of air assembly 1 is airtight quadrangle.Second row device of air assembly 2 described in the present embodiment, is spliced by eight copper coins and forms.The cross section of second row device of air assembly 2 is airtight quadrangle, which is provided with two group cooling water channels arranging same with first row device of air assembly 1 and cooling water channel inlet/outlet and the tube connector that is communicated with connects into a cooling water pipeline (connected mode and the first row of this cooling water channel are identical, therefore omit accompanying drawing mark and statement).The 3rd exhaust apparatus assembly 3 described in the present embodiment, comprises eight copper coin splicing compositions.The cross section of the 3rd exhaust apparatus assembly 3 is airtight quadrangle.Same to be provided with on described 3rd exhaust apparatus assembly 3 and first and arrange there is same cooling water pipeline and connected mode.The copper coin 4 that 3rd exhaust apparatus assembly 3 is selected is the no-oxygen copper plate of processing state.Because no-oxygen copper plate is formed through forging and stamping by monoblock anaerobic copper ingot, even tissue is fine and close, good mechanical performance.And the thermal conductivity of no-oxygen copper plate is greater than 380 W/(mK), be 25 times of corrosion resistant plate, cooling capacity is very strong.
In above-mentioned, involved first row is single circular port to the cross section of the 3rd row's cooling water channel.
Fig. 4 gives the embodiment different from Fig. 3.Cross section except above-mentioned cooling water channel 4 is except single circular port, can also adopt the cooling water channel 14 that two crossing circular ports are formed.The cooling water channel 14 of described two crossing circular ports compared with a circular port cooling water channel 4, one be have that exchange capability of heat is strong, cooling effect evenly; Two is the thickness that can reduce exhaust apparatus assembly copper coin, reduces material usage and manufacturing cost.
Equally, cooling water channel 5 also can be the cooling water channel of two crossing circular ports.
Fig. 5 gives another embodiment.Cross section except above-mentioned cooling water channel 14 is except two crossing circular ports, can also be the cooling water channel 24 that three crossing circular ports are formed.The center of circle of the cooling water channel 24 of described three crossing circular ports is positioned on straight line.Which cooling effect is better than the cooling water channel of two crossing circular ports on the cross section of cooling water channel.
Equally, the cross section of cooling water channel 5 also can be the cooling water channel that three crossing circular ports are formed.
Claims (3)
1. a ferro-alloy furnace exhaust apparatus, comprises and is assembled into multiunit exhaust apparatus assembly, and cooling water channel; It is characterized in that, described cooling water channel (4,5) is the body interior of the exhaust apparatus assembly (1-3) being set directly at each unit, and every two of the cooling water channel (4,5) be distributed on the exhaust apparatus assembly of each unit is divided into one group, each group cooling water channel has one and enters, export (6,8 and 7,9), and the entrance (8) of wherein each outlet (7) and adjacent cold one group of but water channel organizing cooling water channel connects into every side independently circulating cooling water channel separately by tube connector (10).
2. ferro-alloy furnace exhaust apparatus according to claim 1, is characterized in that, it is airtight quadrangle that the exhaust apparatus assembly (1-3) of each unit described forms cross section by the copper coin splicing of varying number.
3. ferro-alloy furnace exhaust apparatus according to claim 1, is characterized in that, cooling water channel (4, the 5) cross section on the exhaust apparatus assembly (1-3) of each unit is single circular port, two crossing circular ports, or three crossing circular ports.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410509331.8A CN104266497A (en) | 2014-09-29 | 2014-09-29 | Exhaust device of iron alloy furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410509331.8A CN104266497A (en) | 2014-09-29 | 2014-09-29 | Exhaust device of iron alloy furnace |
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| Publication Number | Publication Date |
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| CN104266497A true CN104266497A (en) | 2015-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410509331.8A Pending CN104266497A (en) | 2014-09-29 | 2014-09-29 | Exhaust device of iron alloy furnace |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2910954Y (en) * | 2006-06-12 | 2007-06-13 | 江阴海陆冶金设备制造有限公司 | Tube-packing type chimney fixed at converter mouth of evaporated cooling flue of steelmaking converter |
| CN102705847A (en) * | 2012-06-20 | 2012-10-03 | 汕头华兴冶金设备股份有限公司 | Flue for electric furnace |
-
2014
- 2014-09-29 CN CN201410509331.8A patent/CN104266497A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2910954Y (en) * | 2006-06-12 | 2007-06-13 | 江阴海陆冶金设备制造有限公司 | Tube-packing type chimney fixed at converter mouth of evaporated cooling flue of steelmaking converter |
| CN102705847A (en) * | 2012-06-20 | 2012-10-03 | 汕头华兴冶金设备股份有限公司 | Flue for electric furnace |
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Application publication date: 20150107 |
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| RJ01 | Rejection of invention patent application after publication |