CN104388617B - A kind of tap drain structure of smelting furnace - Google Patents
A kind of tap drain structure of smelting furnace Download PDFInfo
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- CN104388617B CN104388617B CN201410745870.1A CN201410745870A CN104388617B CN 104388617 B CN104388617 B CN 104388617B CN 201410745870 A CN201410745870 A CN 201410745870A CN 104388617 B CN104388617 B CN 104388617B
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- tap drain
- smelting furnace
- liquid
- leading portion
- high temperature
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/14—Discharging devices, e.g. for slag
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- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
- Furnace Charging Or Discharging (AREA)
Abstract
The invention provides the tap drain structure of a kind of smelting furnace, for access and carry the high temperature sludge liquid flowed out from the liquid outlet of smelting furnace, it includes tap drain leading portion that tap drain main body, described tap drain main body include being sequentially connected with, tap drain stage casing, tap drain back segment；Described high temperature sludge liquid is fallen at the liquid point that falls of described tap drain leading portion, is carried by described tap drain stage casing and described tap drain back segment；The buffer area for providing cushioning effect for described high temperature sludge liquid it is provided with at the liquid point that falls of described tap drain leading portion, this region is by changing iron runner shape to adapt to the flow regime of high temperature sludge liquid, thus reduce the high temperature sludge liquid impulsive force to iron runner, slow down the damage of iron runner refractory material, improve the service life of tap drain structure, save the artificial and loss of material, reduce production cost.
Description
Technical field
The present invention relates to metal melting equipment technical field, particularly relate to the tap drain structure of a kind of smelting furnace.
Background technology
Along with the smelting furnace of iron and steel smelting maximizes, the daily output of smelting furnace increases the most therewith, and smelting furnace output increased, intensity increase
After, the pith that produces as smelting furnace of tap drain of access conveying pyrosol, be high temperature sludge liquid in smelting furnace through liquid outlet
After outflow, it is achieved slag liquid efficiently separates and requisite equipment, access also accommodates successively from liquid outlet ejection temporarily
High temperature sludge liquid, slag liquid is separated by specific gravity difference, therefore it is corroded by high temperature sludge liquid, the multiple damage effect such as washes away,
Wherein the ditch lining damage at the liquid point that falls of tap drain is the most serious.
Exemplarily, as a example by blast furnace ironmaking, as one of particularly important link in blast fumance technique, State of Blast Furnace
The service life of front iron storing type main channel and the quality of safety thereof, directly influence the production whether blast furnace can maintain a long-term stability
State, and the planform of iron storing type main channel and inside dimension are the most reasonable, also have influence on the blast furnace fireproof material life-span and
The potential safety hazard existed.
The domestic many employings of large blast furnace iron storing type main channel version as shown in Figure 1.Iron storing type main channel is in the process of use
Middle there is damage position mainly impact zone near the liquid point that falls, for ensureing that iron storing type main channel normal safe taps a blast furnace operation, need into
Row falls to bearing near liquid point slag liquid impact zone to tap drain to carry out set and waters repairing, and on the one hand repairing is just to have carried out after having gone out ferrum
, it is necessary first to ferrum remaining in tap drain and slag being cleaned out, mending course is complicated, and reparation construction labor strength is big,
And the environment of high heat causes again multiple unsafe factor, so frequent maintenance is repaired tap drain and caused its quality to be more difficult to protect
Card；On the other hand during use of tapping a blast furnace, slag liquid can gradually penetrate into wherein, and after reaching to a certain degree, material for repairing can quilt
Peeling that what slag liquid was overall wash away, thus patching material service life, the short repairing causing tap drain region was excessively frequent, before making tap drain
Synchronize can not repair with the second half section, before tap drain overhaul, first half section light maintenance repeatedly must be wasted castable for half section.
Chinese patent CN 201793601 discloses a kind of iron storing type main channel of blast furnace, and its steel plate groove is that leading portion width, back segment are narrow
Two-part structure；Bottom belt acclive tap drain mould is the most gradually widened, and forms beloid wedge structure.Its
Extend the service life of iron runner leading portion by increasing the thickness of tap drain first half section refractory material, add for tap drain leading portion
Material water fluence, the most do not save mould material.
Summary of the invention
The technical problem to be solved is to provide the tap drain structure of a kind of smelting furnace, to slow down iron runner refractory material
Damage, improves the service life of iron runner, saves the artificial and loss of material, reduces production cost.
For solving the problems referred to above, the invention provides the tap drain structure of a kind of smelting furnace, for access and carry from smelting furnace
The high temperature sludge liquid that liquid outlet flows out, it includes in tap drain leading portion that tap drain main body, described tap drain main body include being sequentially connected with, tap drain
Section, tap drain back segment；Described high temperature sludge liquid is fallen at the liquid point that falls of described tap drain leading portion, after described tap drain stage casing and described tap drain
Duan Jinhang carries；It is provided with for the described high temperature sludge liquid for falling on described tap drain leading portion at the liquid point that falls of described tap drain leading portion
The buffer area of cushioning effect is provided.
As a kind of improvement of technique scheme, wherein, the in-profile of described buffer area is arcuate structure.
As a kind of improvement of technique scheme, wherein, the in-profile of described buffer area is semi arch or ellipse
Circular arc.
As a kind of improvement of technique scheme, wherein, described arcuate structure and its front end and/or its rear end is described
Between the sidewall of tap drain main body, rounding off connects.
As a kind of improvement of technique scheme, wherein, the periphery of described buffer area arranges thickening lining.
As a kind of improvement of technique scheme, wherein, described tap drain main body is provided with multiple described buffer area.
As a kind of improvement of technique scheme, wherein, the sidewall of described tap drain main body is set to the arc being outwardly recessed
Shape face.
As a kind of improvement of technique scheme, wherein, the bottom of described tap drain main body is provided with by seamlessly transitting
Protuberance and the buffer structure of recess composition.
As a kind of improvement of technique scheme, wherein, the flow direction of the high temperature sludge liquid fallen described at liquid point is convex with described
Line between portion and recess is tangent.
As a kind of improvement of technique scheme, wherein, the tap drain leading portion of described tap drain main body, described tap drain stage casing with
And described tap drain back segment uses prefabricated component to be formed by connecting.
By the present invention is contrasted with prior art, it is known that the present invention is by changing tap drain planform to adapt to height
The flow regime of temperature slag liquid, thus reduces the high temperature sludge liquid impulsive force to tap drain, uses the falling of tap drain leading portion in tap drain main body
Relative set buffer area, liquid point position, provides cushion effect, more for flowing out the high temperature sludge liquid falling in tap drain main body from liquid outlet
Being close to current stabilization state soon, tap drain leading portion is caused damage rate faster by the strong impact force of crossing preventing high temperature sludge liquid from being formed,
The problem of the waste castable needing frequently to repair tap drain leading portion before eliminating tradition tap drain overhaul and cause, extends master
The whole service life of groove structure.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and constitutes the part of description, with following tool
Body embodiment is used for explaining the present invention together, but is not intended that limitation of the present invention.In the accompanying drawings:
Fig. 1 is the structural representation of smelting furnace iron storing type main channel of the prior art；
The tap drain structural representation of the first smelting furnace that Fig. 2 provides for the embodiment of the present invention；
The tap drain structural representation of the second smelting furnace that Fig. 3 provides for the embodiment of the present invention；
The tap drain structural representation of the third smelting furnace that Fig. 4 provides for the embodiment of the present invention；
The tap drain structural representation of the 4th kind of smelting furnace that Fig. 5 provides for the embodiment of the present invention；
Fig. 6 is a kind of A-A cross-sectional view of the tap drain structure of the 4th shown in Fig. 5 kind smelting furnace；
Fig. 7 is the another kind of A-A cross-sectional view of the tap drain structure of the 4th shown in Fig. 5 kind smelting furnace；
Fig. 8 is another A-A cross-sectional view of the tap drain structure of the 4th shown in Fig. 5 kind smelting furnace；
Fig. 9 is a kind of B-B structural representation of the tap drain structure of the 4th shown in Fig. 5 kind smelting furnace.
Description of reference numerals
100 tap drain main body 10 tap drain leading portion 11 buffer area 12,13 changeover portions
14 thicken lining 20 tap drain stage casing 30 tap drain back segment 40 sidewall
41 arcwall faces 50 fall liquid point
Detailed description of the invention
Below in conjunction with accompanying drawing, the detailed description of the invention of the present invention is described in detail.It should be appreciated that this place is retouched
The detailed description of the invention stated is merely to illustrate and explains the present invention, is not limited to the present invention.
In the present invention, in the case of illustrating on the contrary, the noun of locality of use such as " upper and lower, forward and backward " typically refers to
Direction shown in Figure of description.
The tap drain structure of smelting furnace that the present invention provides, goes out liquid from smelting furnace for access conveying storage temporarily are successive
Mouthful high temperature sludge liquid flowed out, can be separated by specific gravity difference to a certain extent to slag liquid, be realize that slag liquid efficiently separates must
Indispensable equipment, therefore it is corroded by high temperature sludge liquid, the multiple damage effect such as to wash away serious, wherein damages at the liquid point that falls of tap drain
Ruin the most serious, according to damage condition, the most fire-resistant as tap drain structure of the general castable using Al2O3-SiC-C series
Material.Certainly the different metal that the tap drain structure of this smelting furnace can be smelted with access conveying smelting furnace, such as steel, ferrum, alloy etc., with
In lower embodiment, only iron storing type main channel using smelting furnace as blast furnace illustrates as example.
Referring to Fig. 2, the tap drain structural representation of the first smelting furnace that the embodiment of the present invention provides, including having sidewall 40
With the tap drain main body 100 of bottom, tap drain main body 100 includes the tap drain leading portion 10 being sequentially connected with from front to back, tap drain stage casing 20, leads
Ditch back segment 30, after the high temperature sludge ferrous solution of the liquid outlet outflow of blast furnace is fallen at the liquid point 50 that falls of tap drain leading portion 10, is led
Ditch stage casing 20 and be connected to tap drain back segment 30 thereafter and be transported to the outlet of tap drain main body 100, also sets at tap drain leading portion 10
It is equipped with the buffer area 11 that cushioning effect is provided for falling the slag ferrous solution at liquid point 50.
Wherein, tap drain main body 100 can be made by integrated poured, naturally it is also possible to by by tap drain leading portion 10, tap drain
Stage casing 20 and tap drain back segment 30 use prefabricated component to make, and are finally spliced to form tap drain main body 100, so can be faster
Complete the installation of tap drain structure, shorten the fabrication cycle to it, thus improve production efficiency further.
Buffer area 11 can be that stretching out of the size width more than tap drain stage casing 20 and tap drain back segment 30 is arranged
Enlarged area, it is around the position setting of the liquid point 50 that falls, and it may be provided at the medium position of tap drain leading portion 10 or directly with main
Ditch stage casing 20 connects.It can make it condense upon the impulsive force quilt at liquid point 50 when high temperature sludge ferrous solution is fallen at liquid point 50
Alleviation scatter, and prevents it from washing away the sidewall 40 of tap drain main body 100 in the impulsive force of the liquid point 50 that falls, or forms circulation, enters one
Tap drain leading portion 11 is caused serious damage by step, effectively alleviates the impact grinding to the sidewall 40 of tap drain leading portion 11 of the high temperature sludge ferrous solution
Damage, thus slow down the abrasion condition at the tap drain leading portion 10 of tap drain main body 100, solve conventional tap drain leading portion and tap drain posterior segment
Damage condition differ greatly, need relatively frequently tap drain leading portion 10 to be keeped in repair and the mending course that causes is complicated, repair
Construction worker's labor intensity is big, but also there is the problem of potential safety hazard, thus saves mould material, simplifies worked
Journey, and improve work efficiency, reduce production cost.
Buffer area 11 can be made to use prefabricated component form, or can be only by the sidewall 40 of buffer area 11
Layer is made as prefabricated component form, so when buffer area 11 is worn and needs repairing, directly prefabricated component can be installed to tap drain
At leading portion 10, maintenance time can be shortened, improve production efficiency.
Buffer area 11 also makes tap drain structure preferably to bear while improving the anti-wear performance of tap drain leading portion 10
The impact that discontinuity is tapped a blast furnace；And slow down the flow velocity of high temperature sludge solution, reduce molten iron itself and tap drain structure is washed away and invades
Degree of corrosion, can keep the more molten iron of more conventional tap drain so that it is will not cool down in the long period, make tap drain structure in making ditch
Refractory material is in relative temperature constant state；And can effectively buffer stream at liquid outlet by the molten iron of storage in tap drain main body 100
The sidewall 40 of tap drain leading portion 11 and the direct of bottom are impacted by the high temperature sludge ferrous solution gone out.
Further, it is preferable to the in-profile of buffer area 11 is set to arcuate structure, exemplarily, can be arranged
It is semi arch, elliptic arc structure, tree leaf-shaped arc or inverse hyperbolic shape arc for Internal periphery, or the combination in any shape of wherein structure
Formula.Arcuate structure preferably shunts guide effect owing to itself structure has, and can preferably disperse high temperature sludge ferrous solution to exist
Fall the impulsive force at liquid point 50, makes within a short period of time high temperature sludge ferrous solution reach nearly current stabilization state, thus is further ensured that master
The stability of ditch leading portion 10, slows down its wear-out period.Certainly, the shape of the buffer area 11 of the present invention is not limited to this, at it
In his embodiment, the in-profile of buffer area 11 can also can provide the structure of cushioning effect for other.
The size of buffer area 11 has two kinds of methods for designing, one be according to the liquid point 50 that falls at slag liquid stream move status values mould
Intend calculating (including slag liquid just firing angle, difference in specific gravity, flow, flow velocity etc., and tap drain shape, tapping hole position)；Two is according to falling
Actual wear situation at liquid point 50 and set.
The Breakage Mechanism of the tap drain main body 100 of iron storage type iron runner have following some: 1, corroded by high temperature sludge ferrous solution
And infiltration；The impact of the molten iron 2, flowed and washing away；3, tap a blast furnace interval produce rapid heat cycle (sometimes according to circumstances to enter
Row watering) thermal shock power to tap drain main body 100；4, the refractory material of tap drain main body 100 aoxidizes with air in high temperature
Reaction；5, the mechanical shock that workman causes when clearing up slag ferrum.According to case above, use straight scale to measure tap drain leading portion 10
Groove face width and trench depth, use semicircle tape measure to stand the width of tap drain leading portion 10 sidewall 40 on limit, use Z-shaped scale
Measure the width of opposite side wall, after each point is measured, record relevant data and calculate accordingly, mainly calculating tap drain
Melting loss speed, melting loss speed (centimetre/ten thousand tons)=iron of melting loss numerical value ÷, the reality of tap drain leading portion 10 can be recorded
Wear data, according to actual wear data, calculates the correlation values that buffer area needs, thus designs the chi of buffer area 11
Very little.
Only tap drain leading portion 10 can certainly be fallen and be sized at liquid point 50 slightly larger than tap drain stage casing 20 and main
The width of ditch back segment 30, can be that the high temperature sludge ferrous solution fallen at liquid point 50 provides strong cushioning effect too.
Further, refer to Fig. 3, the tap drain structural representation of the second smelting furnace that the embodiment of the present invention provides, its with
The tap drain structure of the first smelting furnace in above-described embodiment is similar, and difference is, the tap drain structure buffering of the second blast furnace
Rounding off is used to be connected between the arcuate structure in region 11 with the sidewall 40 of the tap drain main body 100 of its front end and/or rear end
Mode, forms changeover portion 12 and changeover portion 13, such setting, after making high temperature sludge ferrous solution converge at the liquid point 50 that falls, at stream
Under the guide effect of changeover portion 12, the arcuate structure of buffer area 11 and changeover portion 13 that line style is sequentially connected with, by molten for slag ferrum
The impulsive force of tap drain leading portion sidewall 40 is effectively decomposed and offsets by liquid, and so that it becomes nearly current stabilization state, such that it is able to more
Slow down well the high temperature sludge ferrous solution impact wear situation to tap drain leading portion 10 at the liquid point 50 that falls.
Further, refer to Fig. 4, the tap drain structural representation of the third smelting furnace that the embodiment of the present invention provides, its
On the tap drain architecture basics of the second smelting furnace, it is provided with multiple buffer area 11, certain multiple bufferings in tap drain main body 100
Region 11 can be separately positioned on tap drain leading portion 10 or tap drain stage casing 20 or tap drain back segment 30, for slowing down master further
The flow velocity of slag ferrous solution in ditch main body 100, is more conducive to follow-up slag ferrum while slowing down its abrasion to tap drain leading portion 10 and divides
Carrying out from process.
Refer to Fig. 5, the tap drain structural representation of the 4th kind of smelting furnace that the embodiment of the present invention provides, itself and above-described embodiment
The tap drain structure difference of the second smelting furnace of middle offer is, its outer circumferential side in buffer area 11 is provided with thickening lining
14, and thicken at lining 14 and buffer area 11 the thin-walled thickness between sidewall 40 more than tap drain stage casing 20 and tap drain back segment 30
Wall thickness.The setting using this thickening lining 14 is reinforced further with the overall structure to buffer area 11, increases buffer area
The stability of the structure of 11, increase its can the region of attrition so that after tap drain leading portion 10 and tap drain stage casing 20 and tap drain
The abrasion condition basic synchronization of section 30, saves castable, improves production efficiency while simplifying maintenance process.
Refer to Fig. 6, the A-A cross-sectional view of the tap drain structure of the 4th kind of smelting furnace that the embodiment of the present invention provides,
The liquid level of the high temperature sludge ferrous solution owing to being in tap drain structure will not arrive the end face of sidewall 40, so by tap drain leading portion 10
Sidewall 40 is outward-dipping inclined-plane, and it constitutes isosceles trapezoid with bottom 60, to ensure the mill of sidewall 40 bottom and its top
Damage efficiency synchronizes, it is to avoid the bottom of sidewall 40 is needed individually the most repeatedly maintenance operation to provide ironworker to bring not after heavy wear
Just.Certainly the structure of this sidewall 40 is also applied in the tap drain structure of other several smelting furnace.
Refer to Fig. 7, the A-A cross-sectional view of the tap drain structure of the smelting furnace that the embodiment of the present invention provides；It is with upper
The sidewall 40 structure difference of the tap drain structure stating the smelting furnace in embodiment is, the sidewall 40 of tap drain leading portion 10 is the most recessed
Arcwall face 41, and the widest point of arcwall face 41 is close to slag ferrous solution liquid level position, due to high temperature sludge ferrous solution
Liquid level is the strongest for the impulsive force of sidewall 40, can preferably offset height by the guide functions of arcwall face 41 by so arranging
The circulation that temperature slag ferrous solution the is formed percussion to sidewall 40, thus weaken it to the abrasion feelings of sidewall 40 at tap drain leading portion 10
Condition.Certainly this arcwall face 41 can be provided only at the sidewall 40 of tap drain leading portion 10, it is also possible to is arranged on the whole of tap drain main body 100
On individual sidewall 40.Certainly the structure of this sidewall 40 is also applied in the tap drain structure of other several smelting furnace.
Further, the sidewall 40 of tap drain leading portion and bottom 60 may be arranged as forming arc surface as shown in Figure 8,
Make slag ferrous solution by diversed to impulsive force moment of sidewall 40 and bottom 60 further at tap drain leading portion 10, and along arc surface
It is cancelled, reduces sidewall 40 and the damage speed of bottom 60.Certainly the structure of the sidewall 40 of the present invention is not limited to this, at other
The structure that in embodiment, the impulsive force that slag ferrous solution is formed can also be offset by sidewall 40 for other.And this circular arc
Face can be provided only at sidewall 40 and the bottom 60 of tap drain leading portion 10, it is also possible to is arranged on the whole sidewall of tap drain main body 100
40 and bottom 60 at.Certainly the structure of this sidewall 40 is also applied in the tap drain structure of other several smelting furnace.
Refer to Fig. 9, a kind of B-B cross-sectional view of the tap drain structure of the smelting furnace that the embodiment of the present invention provides, figure
Show, at the bottom 60 of tap drain leading portion 10, be provided with the buffer structure being made up of the protuberance 61 seamlessly transitted and recess 62, for falling
The cushioning effect bottom the offer of high temperature sludge ferrous solution at liquid point 50 so that it is nearly current stabilization state can be rapidly converted into.Further
Make at drop point 50 high temperature sludge ferrous solution the flow direction and protuberance 61 and recess 62 between line tangent, so make liquid point
The postpone profile of the line between protuberance 61 and recess 62 of the impulsive force that slag ferrous solution at 50 is formed flows down, it is to avoid it directly hangs down
Directly touch liquid point 50 to form too strong impulsive force and the liquid point 50 that falls is caused bigger abrasion.
Further, bottom tap drain main body 100,60 are additionally provided with the gradient, its value of slope between 0.5% to 1.5%, with
It is easy to control slag ferrous solution flow velocity in tap drain structure, beneficially slag sluicing system.And the overall structure of tap drain main body 100 also may be used
Be set to the most successively by punching block layer, brick layer and pouring layer three layers or other be conducive to constitutionally stable layered structure
Composition, further enhances the stability reduction abrasion of its structure, improves production efficiency while saving material.Certain above-mentioned enforcement
High temperature sludge ferrous solution described in example is with high temperature sludge liquid.
In sum, the present invention at least has the advantage that
1, the present invention is by the relative set buffer area, liquid point position that falls of tap drain leading portion, falls for flowing out from liquid outlet
High temperature sludge liquid in tap drain main body provides cushion effect, is close to current stabilization state quickly, and prevent that high temperature sludge liquid from being formed is too strong
The damage rate faster that tap drain leading portion is caused by impulsive force, needs to carry out many to tap drain leading portion before eliminating tradition tap drain back segment overhaul
Secondary repairing and the problem of waste castable that causes, extend the whole service life of tap drain structure.
2, the present invention by being set to arcuate structure by buffer area, and by itself and leading portion and/or the tap drain main body of rear end
Sidewall between rounding off connect, by airflow design, the high temperature sludge liquid at the liquid point that falls is carried out water conservancy diversion, share counteracting its
The impulsive force produced, slows down the ring current shock tap drain leading portion that high temperature sludge liquid produces, thus reduces the mill to tap drain leading portion further
Loss rate, it is to avoid needed frequently tap drain leading portion to be repaired before to tap drain back segment overhaul.And multiple buffering can be set
The flowing velocity of high temperature sludge liquid, more conducively slag-liquid separation are slowed down in region, and make a certain amount of liquid of storage in tap drain main body, slow down
Its oxidation.
3, the present invention by being set to arcwall face by the sidewall of tap drain main body, and the widest point of arcwall face flushes in slag ferrum
Liquid level of solution position, thus preferably offset, by the guide functions of arcwall face, the circulation offside that high temperature sludge ferrous solution is formed
The percussion of wall, thus weaken its abrasion condition to sidewall.
4, the present invention by being set to the buffer structure connected by protuberance and recess smooth excessiveness by the bottom of tap drain main body,
For the cushioning effect bottom the high temperature sludge ferrous solution offer at the liquid point that falls so that it is nearly current stabilization state can be rapidly converted into.Enter one
Step ground is by tangent for the line between the flow direction and protuberance and the recess of the high temperature sludge ferrous solution at drop point so that the slag ferrum at the liquid point that falls
The postpone profile of the line between protuberance and recess of the impulsive force that solution is formed flows down, it is to avoid its direct perpendicular contact falls liquid point-shaped
Become too strong impulsive force that the liquid point that falls is caused bigger abrasion.
The preferred embodiment of the present invention is described in detail above in association with accompanying drawing, but, the present invention is not limited to above-mentioned reality
Execute the detail in mode, in the technology concept of the present invention, technical scheme can be carried out multiple letter
Monotropic type, these simple variant belong to protection scope of the present invention.
It is further to note that each the concrete technical characteristic described in above-mentioned detailed description of the invention, at not lance
In the case of shield, can be combined by any suitable means, in order to avoid unnecessary repetition, the present invention to various can
The compound mode of energy illustrates the most separately.
Additionally, combination in any can also be carried out between the various different embodiment of the present invention, as long as it is without prejudice to this
The thought of invention, it should be considered as content disclosed in this invention equally.
Claims (8)
1. a tap drain structure for smelting furnace, for access and carry the high temperature sludge liquid flowed out from the liquid outlet of smelting furnace, it includes main
Ditch main body (100), described tap drain main body (100) includes tap drain leading portion (10), tap drain stage casing (20), the tap drain back segment being sequentially connected with
(30)；Described high temperature sludge liquid falls liquid point (50) place that falls of described tap drain leading portion (10), by described tap drain stage casing (20) and described
Tap drain back segment (30) carries；It is characterized in that, liquid point (50) place that falls of described tap drain leading portion (10) is provided with for for falling
Described high temperature sludge liquid on described tap drain leading portion (10) provides the buffer area (11) of cushioning effect;
The cross section of the sidewall (40) of described tap drain main body (100) tap drain leading portion is set to the most recessed arcwall face (40)；
The longitudinal section of the in-profile of described buffer area (11) is arcuate structure.
The tap drain structure of a kind of smelting furnace the most according to claim 1, it is characterised in that the inside of described buffer area (11)
The longitudinal section of profile is semi arch, elliptic arc.
The tap drain structure of a kind of smelting furnace the most according to claim 1, it is characterised in that described buffer area (11) with its before
Between the sidewall of the described tap drain main body (100) of end and/or its rear end, rounding off connects.
The tap drain structure of a kind of smelting furnace the most according to claim 1, it is characterised in that the periphery of described buffer area (11)
Thickening lining (14) is set.
The tap drain structure of a kind of smelting furnace the most according to claim 1, it is characterised in that set on described tap drain main body (100)
It is equipped with multiple described buffer area (11).
The tap drain structure of a kind of smelting furnace the most according to claim 1, it is characterised in that the end of described tap drain main body (100)
Portion (60) is provided with the buffer structure being made up of the protuberance (61) seamlessly transitted and recess (62).
The tap drain structure of a kind of smelting furnace the most according to claim 6, it is characterised in that described in fall the high temperature at liquid point (50) place
Line between the flow direction and described protuberance (61) and the recess (62) of slag liquid is tangent.
The tap drain structure of a kind of smelting furnace the most according to claim 1, it is characterised in that the master of described tap drain main body (100)
Ditch leading portion (10), described tap drain stage casing (20) and described tap drain back segment (30) use prefabricated component to be formed by connecting.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410745870.1A CN104388617B (en) | 2014-12-08 | 2014-12-08 | A kind of tap drain structure of smelting furnace |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410745870.1A CN104388617B (en) | 2014-12-08 | 2014-12-08 | A kind of tap drain structure of smelting furnace |
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| CN104388617B true CN104388617B (en) | 2016-08-24 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106011345A (en) * | 2016-06-27 | 2016-10-12 | 宜兴市龙宸炉料有限公司 | Blast furnace iron storage type main ditch impact area current stabilizer |
| CN109402308A (en) * | 2018-12-04 | 2019-03-01 | 宁夏森源重工设备有限公司 | A kind of large size mineral hot furnace is come out of the stove slag running gate system of combing |
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| CN201793601U (en) * | 2010-09-16 | 2011-04-13 | 鞍钢股份有限公司 | Iron storage type main channel of blast furnace |
| CN202519276U (en) * | 2012-04-20 | 2012-11-07 | 封拴忠 | Iron tap channel combination |
| CN203269958U (en) * | 2013-04-15 | 2013-11-06 | 攀钢集团研究院有限公司 | Blast-furnace tapping channel |
| CN203419943U (en) * | 2013-07-30 | 2014-02-05 | 河北钢铁股份有限公司承德分公司 | Blast furnace iron storage type main channel with long service life and excellent slag-iron separation effect |
| CN204325395U (en) * | 2014-12-08 | 2015-05-13 | 中国京冶工程技术有限公司 | A kind of tap drain structure of smelting furnace |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5314105A (en) * | 1976-07-26 | 1978-02-08 | Sumitomo Metal Ind Ltd | Executing method for construction of blast furnace trough |
| JPH09279212A (en) * | 1996-04-10 | 1997-10-28 | Nippon Steel Corp | Main iron trough of blast furnace |
| KR100721923B1 (en) * | 2005-10-20 | 2007-05-28 | 주식회사 포스코 | Trough device with enhanced durability |
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2014
- 2014-12-08 CN CN201410745870.1A patent/CN104388617B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201793601U (en) * | 2010-09-16 | 2011-04-13 | 鞍钢股份有限公司 | Iron storage type main channel of blast furnace |
| CN202519276U (en) * | 2012-04-20 | 2012-11-07 | 封拴忠 | Iron tap channel combination |
| CN203269958U (en) * | 2013-04-15 | 2013-11-06 | 攀钢集团研究院有限公司 | Blast-furnace tapping channel |
| CN203419943U (en) * | 2013-07-30 | 2014-02-05 | 河北钢铁股份有限公司承德分公司 | Blast furnace iron storage type main channel with long service life and excellent slag-iron separation effect |
| CN204325395U (en) * | 2014-12-08 | 2015-05-13 | 中国京冶工程技术有限公司 | A kind of tap drain structure of smelting furnace |
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| CN104388617A (en) | 2015-03-04 |
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