CN107421341A - A kind of cleaning system for VN alloy high temperature furnace - Google Patents
A kind of cleaning system for VN alloy high temperature furnace Download PDFInfo
- Publication number
- CN107421341A CN107421341A CN201610342405.2A CN201610342405A CN107421341A CN 107421341 A CN107421341 A CN 107421341A CN 201610342405 A CN201610342405 A CN 201610342405A CN 107421341 A CN107421341 A CN 107421341A
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- China
- Prior art keywords
- high temperature
- temperature furnace
- level
- depassing unit
- gas
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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
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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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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The invention discloses a kind of cleaning system for VN alloy high temperature furnace, it is characterised in that it includes smoke collection pipe, the cooling bay being connected with the smoke collection pipe, the sack cleaner being connected with the cooling bay, the pond being connected with the sack cleaner, the one-level depassing unit being connected with the pond and the two level depassing unit connect with the one-level depassing unit with high temperature furnace connection.The device have the advantages that：Effectively the gas such as caused size particles and carbon monoxide in high-temperature burning process can be removed step by step so that what is finally obtained is nontoxic gas, can directly be discharged, and does not pollute the environment and endangers operating personnel's health.And pass through further degasification, obtained final gas is mainly nitrogen, can be passed through high temperature furnace again and participate in calcining, serve the effect for recycling nitrogen, reduce production cost.
Description
Technical field
The present invention relates to relevant VN alloy heating and calcining equipment, and in particular to a kind of cleaning system for VN alloy high temperature furnace.
Background technology
VN alloy is used for the production of micro alloyed steel as a kind of new steel additive agent, alternative vanadium iron, and it, which makes an addition to, can improve the comprehensive mechanical performances such as intensity, toughness, ductility and the thermal fatigue resistance of steel in steel, and steel is had good solderability；In the case where reaching same intensity, addition VN alloy, which relatively adds vanadium, can save vanadium 30%~40%, reduce cost；VN alloy is generally used by domestic and international steel mill, and its production technology and production equipment have obtained swift and violent development.
The heating kiln equipment that existing market production VN alloy uses substantially has following several：Vacuum electric furnace batch production；Steel is climbed using electrical heating tunnel kiln, medium-frequency electrical heating shaft furnace, tube furnace, micro-wave oven.
A large amount of flue gases can be being produced in roasting process, the condensate after micro vanadium and binding agent volatilization, carbon monoxide, carbon dioxide, unnecessary nitrogen etc. are mainly contained in flue gas, is the primary pollution source in VN alloy production process.It is existing that purified treatment is carried out to VN alloy flue gas, mainly using a kind of purification tank arrangement, flue gas conduit caused by tube furnace will be calcined and imported in a purification pot, pass through self-purification, larger or heavier soot dust granule is deposited in purification pot in flue gas, and other flue gases are then discharged into air.Existing deficiency is the device in use：1st, clean-up effect is poor; the requirement to environmental protection can not be met; this is essentially consisted in; although larger or heavier soot dust granule is deposited in purification pot in flue gas; but there are many small soot dust granules to be discharged to flue gas in air in flue gas; environment can still be caused seriously to pollute, not meet the requirement of social progress；2nd, flue gas can be escaped, and directly affect production and the health of worker, because need to open the fire door of roasting tube furnace during charging, and the flue gas in stove can then be escaped with the fire door of opening, and directly production environment is impacted.
The content of the invention
The invention aims to make up the deficiencies in the prior art, there is provided the cleaning system for VN alloy high temperature furnace of harmful substance in a kind of removable flue gas.
In order to reach the purpose of the present invention, technical scheme is as follows：
A kind of cleaning system for VN alloy high temperature furnace, it is characterised in that it includes smoke collection pipe, the cooling bay being connected with the smoke collection pipe, the sack cleaner being connected with the cooling bay, the pond being connected with the sack cleaner, the one-level depassing unit being connected with the pond and the two level depassing unit connect with the one-level depassing unit with high temperature furnace connection.
Further, the two level depassing unit is connected with the high temperature furnace.
After the flue gas of degree is mixed in smoke collection pipe and tentatively cooled, flow into cooling bay and be cooled to normal temperature, the material of some larger particles can settle in cooling bay；And remainder is continuously introduced in sack cleaner, filtering and collecting action by sack cleaner, most particulate is all removed, such as vanadium, sodium etc., and gas part continues across sack cleaner and reaches pond, pond can remove some water-soluble sour gas, such as sulfur dioxide etc., running water can be housed, or some are with weakly alkaline liquid in pond；Behind pond, gas enters one-level depassing unit, and one-level depassing unit is mainly used in removing the carbon monoxide in gas, because carbon monoxide is poisonous, by removing carbon monoxide with the reaction such as oxygen or cupric oxide, iron oxide it can be made to be converted into carbon dioxide；And in two level depassing unit, primarily to carbon dioxide of going out, such as removed using carbon dioxide and the mode of limewash reaction.
After two level depassing unit, remaining gas is mainly inert nitrogen gas, and therefore, two level depassing unit is connected with high temperature furnace, nitrogen is gone successively to high temperature furnace and participates in calcining.
The device have the advantages that：
Effectively the gas such as caused size particles and carbon monoxide in high-temperature burning process can be removed step by step so that what is finally obtained is nontoxic gas, can directly be discharged, and does not pollute the environment and endangers operating personnel's health.
And pass through further degasification, obtained final gas is mainly nitrogen, can be passed through high temperature furnace again and participate in calcining, serve the effect for recycling nitrogen, reduce production cost.
Brief description of the drawings
Fig. 1 is the structural representation for the cleaning system that the present invention is used for VN alloy high temperature furnace.
Embodiment
With reference to embodiment, the invention will be further described, but protection scope of the present invention is not limited solely to embodiment.
As shown in Figure 1, a kind of cleaning system for VN alloy high temperature furnace, including the smoke collection pipe 5 connected with high temperature furnace, the cooling bay 6 being connected with the smoke collection pipe 5, the sack cleaner 7 being connected with the cooling bay 6, the pond 2 being connected with the sack cleaner 7, the one-level depassing unit 3 being connected with the pond 2 and the two level depassing unit 4 being connected with the one-level depassing unit 3.
Caused flue gas on high temperature furnace by putting mouth in high temperature furnace, uniformly it is flowed into smoke collection pipe 5, after the flue gas of each temperature is mixed in smoke collection pipe 5 and tentatively cooled, flow into cooling bay 6 and be cooled to normal temperature, the material of some larger particles can settle in cooling bay 6；And remainder is continuously introduced in sack cleaner 7, filtering and collecting action by sack cleaner 7, most particulate is all removed, such as vanadium, sodium etc., and gas part continues across sack cleaner 7 and reaches pond 2, pond 2 can remove some water-soluble sour gas, such as sulfur dioxide etc., running water can be housed, or some are with weakly alkaline liquid in pond 2；Behind pond 2, gas enters one-level depassing unit 3, and one-level depassing unit 3 is mainly used in removing the carbon monoxide in gas, because carbon monoxide is poisonous, by removing carbon monoxide with the reaction such as oxygen or cupric oxide, iron oxide it can be made to be converted into carbon dioxide；And in two level depassing unit 4, primarily to carbon dioxide of going out, such as removed using carbon dioxide and the mode of limewash reaction.
After two level depassing unit 4, remaining gas is mainly inert nitrogen gas, and therefore, two level depassing unit 4 is connected with high temperature furnace, nitrogen is gone successively to high temperature furnace and participates in calcining.
Finally it should be noted that：Above example only not limits technical scheme described in the invention to illustrate the present invention, therefore, although this specification is with reference to above-mentioned each embodiment to present invention has been detailed description, but, it will be understood by those within the art that, still the present invention can be modified or equivalent substitution, and all do not depart from technical scheme and its improvement of the spirit and scope of the present invention, it all should cover in scope of the presently claimed invention.
Claims (2)
1. a kind of cleaning system for VN alloy high temperature furnace, it is characterised in that including the smoke collection pipe connected with high temperature furnace（5）And the smoke collection pipe（5）The cooling bay of connection（6）And the cooling bay（6）The sack cleaner of connection（7）And the sack cleaner（7）The pond of connection（2）And the pond（2）The one-level depassing unit of connection（3）And with the one-level depassing unit（3）The two level depassing unit of connection（4）.
2. the cleaning system according to claim 1 for VN alloy high temperature furnace, it is characterised in that the two level depassing unit（4）It is connected with the high temperature furnace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610342405.2A CN107421341A (en) | 2016-05-23 | 2016-05-23 | A kind of cleaning system for VN alloy high temperature furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610342405.2A CN107421341A (en) | 2016-05-23 | 2016-05-23 | A kind of cleaning system for VN alloy high temperature furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107421341A true CN107421341A (en) | 2017-12-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610342405.2A Pending CN107421341A (en) | 2016-05-23 | 2016-05-23 | A kind of cleaning system for VN alloy high temperature furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107421341A (en) |
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2016
- 2016-05-23 CN CN201610342405.2A patent/CN107421341A/en active Pending
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20171201 |