CN205825741U - A kind of off-line type scrap steel preheating stove - Google Patents
A kind of off-line type scrap steel preheating stove Download PDFInfo
- Publication number
- CN205825741U CN205825741U CN201620793048.7U CN201620793048U CN205825741U CN 205825741 U CN205825741 U CN 205825741U CN 201620793048 U CN201620793048 U CN 201620793048U CN 205825741 U CN205825741 U CN 205825741U
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- heater
- line type
- furnace
- scrap steel
- bell
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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
- Y02P10/20—Recycling
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Abstract
The utility model discloses a kind of off-line type scrap steel preheating stove, belong to steelmaking technical field, including fixed in position body of heater in a tubular form, removable airtight or open the furnace bottom of bottom of furnace body and removable airtight or open the bell at body of heater top, the upper area of described bell or body of heater is provided with smoke inlet, and the lower area of described body of heater is provided with the exhanst gas outlet of oblique top.This utility model by being arranged on the upper area of bell or body of heater by smoke inlet, exhanst gas outlet is arranged on the lower area of body of heater, high-temperature flue gas is introduced from furnace roof, and discharge from bottom of furnace body region so that the local melting of steel scrap is positioned near at smoke inlet, will not be bonded on body of heater, steel scrap will not be formed and stop, avoiding the phenomenon that steel scrap cannot fall, the reliability of equipment strengthens, and maintenance cost reduces.
Description
Technical field
This utility model belongs to steelmaking technical field, is specifically related to a kind of off-line type scrap steel preheating stove.
Background technology
In STEELMAKING PRODUCTION particularly in electric arc furnace produces, with flue gas steel scrap preheated or can with gas heating steel scrap
Saves energy, shortens smelting cycle, improves production efficiency.Patent " a kind of material off-line of Application No. 2016010465611.2
Heat smoke preheating device and pre-heating mean thereof " provide a kind of steel scrap off-line preheating technology, do not change original production model, its
Equipment flexible arrangement, investment for trnasforming urban land is low, is very suitable for existing electric arc furnace workshop reducing energy consumption.
The preheating device smoke inlet of this technology is positioned at preheating chamber lower area, situations such as getting stuck, and high temperature easily occurs
When flue gas or burner introduce preheating chamber, easily make steel scrap local melting at smoke inlet, bonding, occur naturally falling
Phenomenon, increases plant maintenance amount, and impact is normal to be produced.
Utility model content
In view of this, the purpose of this utility model is to provide the off-line type scrap steel preheating stove of a kind of improvement, simple in construction,
Manufacture easy to process, it is to avoid the phenomena impair such as generation gets stuck, sizing normally produce, and equipment dependability is high, and maintenance is little.
For reaching above-mentioned purpose, this utility model following technical scheme of offer:
A kind of off-line type scrap steel preheating stove, including fixed in position body of heater in a tubular form, removable airtight or open at the bottom of body of heater
The furnace bottom in portion and removable airtight or open the bell at body of heater top, the upper area of described bell or body of heater is provided with flue gas and enters
Mouthful, the lower area of described body of heater is provided with the exhanst gas outlet of oblique top.
Further, two bearing material parts that described furnace bottom is hinged on bottom of furnace body by symmetry form, and each rotate around the axis reality
Now open and close the operation of furnace bottom.
Further, described bearing material part includes that half-conical material bearing disc and two be symmetricly set on half-conical material bearing disc turn
Arm, described pivoted arm is positioned near the outer round surface at semicircle trimming place, and is connected with body of heater rotating shaft respectively.
Further, described bottom of furnace body is planar ring structure, and described furnace bottom top is planar ring structure, between the two
Constitute gap, make body of heater keep airtight.
Further, described body of heater, bell, furnace bottom, smoke inlet, exhanst gas outlet are provided with water-cooling structure.
Further, it is equipped with refractory material inside described body of heater, bell, smoke inlet, exhanst gas outlet.
Further, the mixed wind regulation door of exhanst gas outlet sidewall it is arranged on.
Further, the fixing backgauge part being fixedly installed on smoke outlet is also included.
Further, exhanst gas outlet quantity is two or more, around lower portion of furnace body area distribution.
The beneficial effects of the utility model are:
This utility model by being arranged on the upper area of bell or body of heater by smoke inlet, and exhanst gas outlet is arranged on body of heater
Lower area, by high-temperature flue gas from furnace roof introduce, and from bottom of furnace body region discharge so that the local melting of steel scrap is positioned at
Near at smoke inlet, will not be bonded on body of heater, steel scrap will not be formed and stop, it is to avoid what steel scrap cannot fall shows
As, the reliability of equipment strengthens, and maintenance cost reduces.
Other advantages of the present utility model, target and feature will be explained to a certain extent in the following description
State, and to a certain extent, will be apparent to those skilled in the art based on to investigating hereafter, or
Person can be instructed from practice of the present utility model.Target of the present utility model and other advantages can be said by following
Bright book realizes and obtains.
Accompanying drawing explanation
In order to make the purpose of this utility model, technical scheme and beneficial effect clearer, this utility model provides as follows
Accompanying drawing illustrates:
Fig. 1 is 3 dimensional drawing of the present utility model；
Fig. 2 is the sectional view of this utility model first embodiment；
Fig. 3 is the schematic diagram that first embodiment opens bell charging；
Fig. 4 is the schematic diagram that first embodiment opens furnace bottom discharging；
Fig. 5 is the schematic diagram of gap sealing between first embodiment body of heater and furnace bottom；
Fig. 6 is the structural representation of first embodiment furnace bottom；
Fig. 7 is that first embodiment mixes wind regulation door schematic diagram；
Fig. 8 is the sectional view of this utility model the second embodiment.
Reference:
1-bell；2-body of heater；21-planar ring structure I；3-steel scrap；4-furnace bottom；41-bearing material part；42-plane annular
Structure I I；43-half-conical material bearing disc；44-pivoted arm；45-rotating shaft；5-smoke inlet；6-exhanst gas outlet；61-fixes backgauge part；
62-mixes wind regulation door；7-gap；8-refractory material；9-burner.
Detailed description of the invention
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail.
Embodiment 1:
As shown in figs. 1-7, a kind of off-line type scrap steel preheating stove, including bell 1, body of heater 2, furnace bottom 4, smoke inlet 5, flue gas
Outlet 6, described body of heater 2 and the tubular structure in both ends open, its top is cone, and bottom is cylindrical, the fixing peace of body of heater 2
Put, be used for accommodating described steel scrap 3；Described bell 1 is movably disposed within body of heater 2 top, stove during to keep steel scrap 3 to heat
Body 2 is airtight；Described furnace bottom 4 is made up of two the bearing material parts 41 being arranged symmetrically with, and carries steel scrap 3 in described closed position, in institute
Stating open position can make steel scrap 3 fall completely.The planar ring structure I 21 of described bottom of furnace body and the plane on furnace bottom top
It is provided with long and narrow gap 7 between loop configuration II42, constitutes gap sealing airtight with holding body of heater 2, be suitable for manufacturing by mistake simultaneously
Difference and thermal deformation, described bearing material part 41 includes half-conical material bearing disc 43 and two pivoted arms being symmetricly set on half-conical material bearing disc
44, described pivoted arm 44 is positioned near the outer round surface at semicircle trimming place, and is connected with body of heater rotating shaft 45 respectively, each rotates
Axle rotates the operation realizing opening and closing furnace bottom, owing to half-conical material bearing disc has to recessed structure, in closed position and
Between open position during motion, the loop configuration 21 of bottom of furnace body can be avoided, it is ensured that furnace bottom 4 can smooth opening and closedown.
As the improvement of the present embodiment, bell 1, body of heater 2, furnace bottom 4, smoke inlet 5, exhanst gas outlet 6 are provided with water-cooled
Structure, to meet the long-term demand run under worst hot case.Smoke inlet 5 is positioned at bell, and high-temperature flue gas can be made to enter equably
Enter the steel scrap layer in body of heater, though steel scrap local melting, owing to away from furnace wall, also will not be bonded on body of heater, and stove
High-temperature area avoid structure more complicated furnace bottom lower area, the quantity of exhanst gas outlet 6 is for for two, around lower portion of furnace body district
Territory is distributed, and it has been arranged in steel scrap cold-zone in low-temperature space favorably reduces the maintenance of equipment and reduces stove, improves pre-heat effect.Cigarette
Gas outlet 6 is provided with fixing backgauge part 61, stops steel scrap to enter exhanst gas outlet passage, to avoid steel scrap jam at exhaust gases passes
Cannot naturally fall.
What deserves to be explained is, smoke inlet 5 may also set up the upper area in body of heater as required, equally, it is also possible to reach
To above-mentioned purpose.
During work, furnace bottom 4 is rocked to closed position, opens bell 1 and adds steel scrap 3 in stove, is then shut off bell 1,
High-temperature flue gas enters body of heater from smoke inlet 5, discharges from exhanst gas outlet 6 after penetrating steel scrap 3.Preheat through after a while, useless
After steel reaches set preheating temperature, open furnace bottom 4, make steel scrap 3 fall into material basket, then lift to electric arc furnace (not shown).
As the improvement of the present embodiment, inside body of heater 2, bell 1, smoke inlet 5, exhanst gas outlet 6, it is provided with refractory material 8,
Preheating furnace heat loss can be reduced, save cooling water inflow, meanwhile improve the thermal efficiency.
As the improvement of the present embodiment, smoke outlet is provided with mixed wind regulation door 62, real-time by regulation door opening size
The mixed air quantity of regulation exhanst gas outlet, reduction flue gas exit temperature, to meet dust removal process needs, plays rear portion pipe-line equipment simultaneously and holds
(mixed wind is very few, and flue-gas temperature is high, the cloth bag of easy damaged dust pelletizing system for the temperature being subject to；Mixed wind is excessive, and stove dust removing effects is poor, adds
Big blower fan traffic requirement), reduce cooling water consumption；Additionally, mixed wind regulation door also can lead to as the repair and maintenance of exhanst gas outlet
Road.
Under the occasion of some, burner 9 afterburning can be used to improve flue-gas temperature, or directly heat steel scrap 3, it is ensured that steel scrap
Material is preheating to certain temperature.
There is advantages below compared to existing technology in the present embodiment:
1. high-temperature flue gas introduces from furnace roof, extracts out from bottom of furnace body region, and the local melting of steel scrap is positioned at upper strata flue gas
Near porch, will not be bonded on body of heater, and smoke outlet is provided with backgauge part, it is to avoid what steel scrap cannot fall shows
As；
2. body of heater and furnace bottom regular shape, simple in construction, it is simple to processing and manufacturing；Intensity of hearth is high, and bearing capacity is strong, with stove
Body obturation effect is good；
3. inboard wall of furnace body or local interior wall are equipped with refractory material, reduce heat loss and cooling water amount, improve preheating furnace
The thermal efficiency, protects body of heater simultaneously, extends its service life.
Embodiment 2:
As shown in Figure 8, for the schematic cross-section of full gas scrap steel preheating stove, unlike first embodiment, heat smoke
Thered is provided by some combustion gas (such as coal gas or the natural gas) burner 9 being arranged on bell, i.e. the smoke inlet 5 of first embodiment changes into
The burner 9 of the present embodiment, steel scrap is directly heated, and controls the preheating temperature of steel scrap by burner 9 flame；Now, bell be coated with every
Outside the resistance to material of heat, shaft using water-cooled, this structure is suitable for the impact of anti-material, reduces the maintenance of shaft.
Finally illustrating, preferred embodiment above is only in order to illustrate the technical solution of the utility model and unrestricted, to the greatest extent
This utility model is described in detail by pipe by above preferred embodiment, but those skilled in the art should manage
Solve, in the form and details it can be made various change, without departing from this utility model claims institute
The scope limited.
Claims (9)
1. an off-line type scrap steel preheating stove, it is characterised in that: include fixed in position body of heater in a tubular form, removable airtight or beat
Opening the furnace bottom of bottom of furnace body and may move bell that is airtight or that open body of heater top, the upper area of described bell or body of heater is arranged
Smoke inlet, the lower area of described body of heater is had to be provided with the exhanst gas outlet of oblique top.
A kind of off-line type scrap steel preheating stove the most according to claim 1, it is characterised in that: described furnace bottom is hinged on by symmetry
Two bearing material part compositions of bottom of furnace body, each rotate around the axis and realize opening and closing the operation of furnace bottom.
A kind of off-line type scrap steel preheating stove the most according to claim 2, it is characterised in that: described bearing material part includes half-conical
Material bearing disc and two pivoted arms being symmetricly set on half-conical material bearing disc, described pivoted arm is positioned at the outer round surface at semicircle trimming place
Near, and be connected with body of heater rotating shaft respectively.
A kind of off-line type scrap steel preheating stove the most according to claim 1, it is characterised in that: described bottom of furnace body is planar rings
Shape structure, described furnace bottom top is planar ring structure, constitutes gap between the two, makes body of heater keep airtight.
5. according to the arbitrary described a kind of off-line type scrap steel preheating stove of claim 1-4, it is characterised in that: described body of heater, bell,
Furnace bottom, smoke inlet, exhanst gas outlet are provided with water-cooling structure.
6. according to the arbitrary described a kind of off-line type scrap steel preheating stove of claim 1-4, it is characterised in that: described body of heater, bell,
It is equipped with refractory material inside smoke inlet, exhanst gas outlet.
7. according to the arbitrary described a kind of off-line type scrap steel preheating stove of claim 1-4, it is characterised in that: also include being arranged on cigarette
The mixed wind regulation door of gas exit side wall.
8. according to the arbitrary described a kind of off-line type scrap steel preheating stove of claim 1-4, it is characterised in that: also include being fixedly installed
Fixing backgauge part at smoke outlet.
9. according to the arbitrary described a kind of off-line type scrap steel preheating stove of claim 1-4, it is characterised in that: exhanst gas outlet quantity is
Two or more, and around lower portion of furnace body area distribution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620793048.7U CN205825741U (en) | 2016-07-26 | 2016-07-26 | A kind of off-line type scrap steel preheating stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620793048.7U CN205825741U (en) | 2016-07-26 | 2016-07-26 | A kind of off-line type scrap steel preheating stove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205825741U true CN205825741U (en) | 2016-12-21 |
Family
ID=57561065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620793048.7U Expired - Fee Related CN205825741U (en) | 2016-07-26 | 2016-07-26 | A kind of off-line type scrap steel preheating stove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205825741U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106052406A (en) * | 2016-07-26 | 2016-10-26 | 中冶赛迪工程技术股份有限公司 | Off-line type scrap steel preheating furnace |
| CN114507764A (en) * | 2022-02-22 | 2022-05-17 | 江苏蓝创环保科技有限公司 | Device for heating scrap steel |
-
2016
- 2016-07-26 CN CN201620793048.7U patent/CN205825741U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106052406A (en) * | 2016-07-26 | 2016-10-26 | 中冶赛迪工程技术股份有限公司 | Off-line type scrap steel preheating furnace |
| CN114507764A (en) * | 2022-02-22 | 2022-05-17 | 江苏蓝创环保科技有限公司 | Device for heating scrap steel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20161221 Termination date: 20190726 |