CN208751294U - The sinter high furnace cooling apparatus of the anti-segregation distribution in top and bottom mating cloth wind - Google Patents
The sinter high furnace cooling apparatus of the anti-segregation distribution in top and bottom mating cloth wind Download PDFInfo
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- CN208751294U CN208751294U CN201821034451.7U CN201821034451U CN208751294U CN 208751294 U CN208751294 U CN 208751294U CN 201821034451 U CN201821034451 U CN 201821034451U CN 208751294 U CN208751294 U CN 208751294U
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Abstract
The utility model relates to the sinter high furnace cooling apparatus of a kind of anti-segregation distribution in top and bottom mating cloth wind, it is characterized in that, the cooling device includes receiver bin, is provided with airtight cloth room below the receiver bin, the airtight cloth room is arranged in vertical furnace body, there is cold wind gas introduction port below the shaft furnace furnace body, has gas outlet above the shaft furnace furnace body；The technical solution is compact-sized ingenious, overcome cloth unevenly i.e. macrosegregation the problem of, make the heat exchange of sinter more sufficiently and thoroughly.
Description
Technical field
The utility model relates to a kind of cooling devices, and in particular to a kind of anti-segregation distribution in top and bottom mating cloth wind
Sinter high furnace cooling apparatus belongs to metallurgical industry technical field of waste heat utilization.
Background technique
At present the sinter cooler that uses both at home and abroad have disc type, format, tower, belt, circular cooler and flat and
The diversified forms such as tower vibration cold, domestic iron and steel enterprises are widely used that air blast or exhaust belt type cooler and ring type are cooling
Machine.The common shortcoming of the above prior art is either air-draft-type or forced draft cooling machine, and blast consumption is big, temperature of outgoing air
It is low, and the prior art does not use totally-enclosed structure, it is impossible to the recycling of full blast amount waste heat is carried out, and is leaked out in order to prevent, institute
The closed structure of use is all more complicated.
Vertical cooling sinter is developed thus, and shaft furnace coolant seal is good, and heat recovery is complete, but existing in shaft furnace
Distributing mode is easy to produce segregation.Sinter cooling procedure is that high temperature sinter enters shaft furnace and constantly declines, and cooling gas is the bottom of from
Portion is blown into the heat for taking away sinter, and sinter is cooled down.Existing shaft furnace material distribution mode is all made of single tube or multitube is locked into certainly
(sinter is full of receiver bin and blanking pipe until shaft furnace charge level, prevents high-temp waste gas from overflowing via pipeline and receiver bin for material form
Out, referred to as self-locking), but the material heap that blanking nozzle is formed to charge level, material are rolled with furnace charge decline, form material size point
Cloth segregation.So-called material size distribution segregation refers to that material heap center granularity is small, and phenomenon more bigger toward edge granularity, material heap is cured
Height, bulk cargo rolling distance is longer, is segregated more serious.
The first vertical cooling furnace of sinter is circular cross-section, single tube charging, is centrally formed a big material heap in shaft furnace.Material heap
Bottom and shaft furnace circumference junction are all big granularity sinters, more smaller toward center granularity.Because sinter enters feed bin distribution
Unevenly, although being equipped with conical cowl in shaft furnace bottom centre, cooling gas is still tended to from edge bulk sinter
Gap in flow, form pipe effect, and center small sinter cannot cool down, and seriously affect the cooling of sinter
Effect, cause discharge sinter temperature it is excessively high, influence conveyor belt safety.Therefore anti-during shaft furnace cooling sinter
Only the segregation of sinter is particularly important.
There is also serious particle segregations for the charging of rectangle shaft furnace, and subsequently through dispersion segregation source, (design is by single feed inlet
It is changed to multiple feed inlets), segregation is distributed to reduce the material size of each lower material heap heap.After dispersing segregation source, material heap bottom (material
Position) rise, bulk cargo rolling distance shortens, and single material heap particle segregation improves；From the point of view of entire charge level, because of big granularity sinter
Distributed areas increase, and small sinter distributed areas are reduced, and entire charge level particle segregation reduces.But the multiple chargings in shaft furnace top
Mouth forms multiple material heaps, material heap and rectangle furnace wall intersection and material heap and material heap intersection is all big granularity sinter, more past
Material heap center sinter granularity is smaller；It is (single that this sinter size distribution difference also results in shaft furnace lower part cloth wind distributional difference
Fertilizer in plane product is than distributional difference), the big place of granularity is ventilative more, and fertilizer is than big, good cooling results, the small place of granularity
Ventilative few, for fertilizer than small or even stuffy, cooling effect is poor.Moreover, the sinter shaft furnace occurred at present is all for small sintering
Machine (< 300m2) service, as sinter erects the popularization of refrigeration technique, the trend of shaft furnace enlargement can hardly be avoided, this multitube into
Material mode does not adapt to the needs of shaft furnace enlargement necessarily yet；And from the point of view of shaft furnace type selection, the furnace body of circular cross-section is symmetrical
Property it is more preferable, be not likely to produce dead zone, more adapt to the requirement that large-scale shaft furnace realizes uniform distribution (anti-segregation distribution).
From pertinent literature, the control for loose unpacked material segregation mainly includes fixed bell and swivel chute cloth.
First, using bell cloth.It is vertical if patent of invention CN1103160 discloses a kind of vertical agglomerate cooling machine
Sinter cooler is mechanical, electrical by surge bunker, gate, bell, hopper, exhaust pipe, casing, the annular passage with shutter, wind
Shake discharging machine, rubber conveyer composition, and wherein surge bunker is to feed slow storage device, and rubber conveyer is discharging device, gate, material
Clock forms the double-deck feeding seal structure, an electricity vibration discharging machine, one section of stock column composition discharging sealing structure, by the double-deck feeding seal
Structure and discharging sealing structure constitute the totally-enclosed structure of sinter cooler, and structure is simple, and whole cold wind are all effective wind rate,
To reach raising temperature of outgoing air, and the purpose that the UTILIZATION OF VESIDUAL HEAT IN of whole air drafts is got up.It is structure letter using the advantages of bell
Single, the disadvantage is that cloth can be only formed a ring-type, segregation is larger, cannot more accurate cloth.
Second, using swivel chute cloth.Patent of invention CN106702059A discloses a kind of blast furnace roof chute cloth
Device, including being equipped with airtight box, the rotary driving source being arranged on the top cover and the trunnion of top cover, turnbarrel, fascinating
Driving source, fixed pivoting support, translation pivoting support, distributor chute and wobble drive component.Rotary driving source driving rotation
Sleeve rotating, drives chute rotation under the action of wobble drive component, and driving source of fascinating passes through rack gear and the gear that fascinates of fascinating
Effect, driving translation pivoting support moves up and down, and the distributor chute is driven under the action of wobble drive to swing.Pass through
It controls the rotation of chute and swings the polycyclic distributing for realizing blast furnace.
The above distributing method, has the following defects.First, for bell type cloth, it can be only formed monocycle material heap, granularity is inclined
Analysis is still very big, and cloth evenness is poor；Second, swivel chute cloth is applied to blast furnace material distribution more, cooling in shaft furnace sinter
In have no application；Third, blast-furnace rotating chute cloth are mostly intermittent freely falling body cloth (parabolic path), and shaft furnace is sintered
Mine is continuous self-locking cloth, and material is continuously slowly rolled along pipeline (being full of pipeline), distributor chute, material heap or mobile, material pair
High-temp waste gas forms self-locking.4th, blast-furnace rotating chute is held fix with central throat tube on it, can only do the week around fixed point
To rotation and longitudinal movement of fascinating, the movement itself slided or moved along fixed point cannot be completed, thus is not able to satisfy perpendicular
The requirement of the continuous self-locking cloth of furnace.
Summary of the invention
The utility model exactly for the technical problems in the prior art, provides a kind of anti-segregation distribution in top and bottom
Portion matches the sinter high furnace cooling apparatus of cloth wind, and the technical solution is compact-sized ingenious, and it is unevenly i.e. serious to overcome cloth
The problem of segregation, keeps the heat exchange of sinter more sufficiently and thorough.
To achieve the goals above, the technical solution of the utility model is as follows: a kind of anti-segregation distribution in top and bottom
Sinter high furnace cooling apparatus with cloth wind, which is characterized in that the cooling device includes the lower section of receiver bin, the receiver bin
It is provided with airtight cloth room, the airtight cloth room is arranged in vertical furnace body, has cold wind gas below the shaft furnace furnace body
Intake has gas outlet above the shaft furnace furnace body.The technical solution keeps cloth more accurate controllable, overcomes cloth
Unevenly (macrosegregation) problem keeps the heat exchange of sinter more sufficiently and thorough.
As a kind of improvement of the utility model, the airtight distributing device includes that sealed chamber, central feed tube, cloth slip
Slot, distributor chute rotation drive, distributor chute fascinates driving, distributor chute sliding driving, the distributor chute are arranged airtight
The bottom of room, the top of sealed chamber are provided with central feed tube, and the distributor chute sliding drives centrally disposed charging
The two sides of pipe, airtight distributing device distributor chute rotation driving, chute fascinate driving, distributor chute sliding driving drive under it is real
Existing distributor chute rotation is fascinated and is slided.
As a kind of improvement of the utility model, the receiver bin is bulk tank, and airtight distributing device is located under receiver bin
Side, central feed tube are located at airtight distributing device center, receiver bin feed opening above face.
Make a kind of improvement as the utility model, the distributor chute of the airtight distributing device is semicircle cylinder, and cloth slips
Slot realizes change of pitch angle, and inclination angle is the angle of distributor chute center line and central feeding tube hub line, and variation range is 0-50 °.
Usual range is at 25-45 °.Above-mentioned anti-segregation distributing method is that distributor chute persistently rotates at work, with revolving top
Inclination angle, which changes, realizes screw distribution.When distributor chute inclination angle changes, distributor chute ontology is slided along fixed point simultaneously, to protect
It holds distributor chute cloth end to move along same level, with charge levels clothes such as realizations, charge level in feed bin is avoided to stop chute angle
Variation.
As a kind of improvement of the utility model, conical cowl is provided in the shaft furnace.It is arranged in shaft furnace bottom centre
Conical cowl, position and size design, according to material via blast cap and shaft furnace hypocone air outlet required for fertilizer when
Intensity of cooling determines that the Proportionality design of tapering outlet air and cooling air quantity shared by blast cap outlet air is adjustable, so that heat exchange carries out more
Add abundant and thorough.
As a kind of improvement of the utility model, distributor chute change of pitch angle and the mobile chain control of progress of distributor chute sliding
System, so-called chain control refer to that distributor chute upper end is in fixed point position when distributor chute tilt angle is 45 °,
When distributor chute tilt angle is 0 °, distributor chute is slided along fixed point, and sliding distance is 0.3 times of distributor chute length,
I.e. distributor chute is 0.3 times of its own length in distance of the position of fixed point away from distributor chute upper end.By above-mentioned
Airtight distributing device operating, is realized reciprocating screw cloth (or polycyclic distributing), the degree of segregation of sinter substantially reduces, then passes through bottom
After gas matching in portion's is blown into, it is capable of forming relatively uniform heat exchange, material is adequately cooled.
As a kind of improvement of the utility model, it is passed through cooling gas in the sealed chamber of the airtight distributing device, with protection
Driving device.
As a kind of improvement of the utility model, the airtight distributing device makes sinter realize rotation cloth.It mentions significantly
The high uniformity of cloth.
Compared with the existing technology, as follows the advantages of the utility model: this programme for the first time by swivel chute cloth creatively
It is applied in the vertical cooling furnace of sinter, operates to form screw distribution (or polycyclic distributing) by airtight distributing device, greatly improve
The uniformity of cloth.This programme is slided by distributor chute to fascinate with distributor chute chain, realizes grade charge levels cloth, makes
It obtains vertical cooling furnace distinctive " continuous self-locking cloth " to be achieved, has achieved the purpose that anti-segregation distribution, also avoided charge level
Blocking to distributor chute angulation change is more easier so that adjusting.This programme is suitable for the bulk material of sintered ore under hot conditions
(or pellet etc.), enables sinter to be uniformly fully cooled.This programme flexible structure is changeable, and monocycle, polycyclic may be implemented
And screw distribution.Reciprocating screw cloth may be implemented, and keep its spiral heap point location dislocation complementary by setting, utmostly disappear
Except cloth segregation phenomena.
Detailed description of the invention
Fig. 1 is the utility model overall structure diagram；
Fig. 2 is airtight distributing device structural schematic diagram；
Fig. 3 is distributor chute angle change process schematic.
The label in accompanying drawing is: 1- central feed tube, 2- distributing device is driven upside down, the rotation driving of 3- distributor chute, 4- gas
Gather glassware, and 5- distributor chute fascinates driving, 6- distributor chute, 7- receiver bin, 8- vertical cylindrical furnace furnace body, 9- bulk material, 10-
Blast cap, 11- material outlet, 12- gas enter, and 13- gas is drawn.
Specific embodiment
It is practical new to this with reference to the accompanying drawings and detailed description in order to reinforce the understanding and cognition to the utility model
Type makes further instructions and introduces.
Embodiment 1: referring to Fig. 1, a kind of sinter high furnace cooling apparatus of the anti-segregation distribution in top and bottom mating cloth wind,
The cooling device includes receiver bin 7, is provided with airtight cloth room 4 below the receiver bin, and the airtight cloth room 4 is arranged
In vertical furnace body, there is cold wind gas introduction port below the shaft furnace furnace body, have gas extraction above the shaft furnace furnace body
Mouthful.The technical solution keeps cloth more accurate controllable, overcomes uneven (macrosegregation) problem of cloth, makes the heat exchange of sinter
More sufficiently and thorough, the airtight distributing device includes sealed chamber 14, central feed tube 1, distributor chute 6, distributor chute rotation
Driving 3, distributor chute fascinate driving 5, distributor chute sliding driving 2, the bottom of sealed chamber is arranged in the distributor chute 6,
The top of sealed chamber is provided with central feed tube 1, and the distributor chute sliding drives the two sides of 2 centrally disposed feed pipes,
Airtight distributing device realizes cloth in the case where distributor chute rotates the drive for driving 3, chute to fascinate driving 5, distributor chute sliding driving 2
Chute rotation is fascinated and is slided, and the receiver bin is bulk tank, and airtight distributing device is located at below receiver bin, central feed tube
The receiver bin feed opening above airtight distributing device center, face.
Embodiment 2: referring to Fig. 1, Fig. 2, as a kind of improvement of the utility model, the distributor chute of the airtight distributing device
6 be semicircle cylinder, and distributor chute realizes change of pitch angle, and inclination angle is the folder of distributor chute center line and central feeding tube hub line
Angle, variation range are 0-50 °.Usual range is at 25-45 °.Above-mentioned anti-segregation distributing method is that distributor chute continues at work
Rotation realizes screw distribution as revolving top inclination angle changes.When distributor chute inclination angle changes, distributor chute ontology is same
When along fixed point slide, to keep distributor chute cloth end to move along same level, with realize etc. charge levels cloth, avoid feed bin
Interior charge level stops chute angle change.
Embodiment 3: referring to Fig. 1, as a kind of improvement of the utility model, conical cowl 10 is provided in the shaft furnace.
Conical cowl, position and size design are set in shaft furnace bottom centre, according to material via blast cap and the outlet air of shaft furnace hypocone
When intensity of cooling determines fertilizer required for mouthful, and the Proportionality design of cooling air quantity shared by tapering outlet air and blast cap outlet air is can
It adjusts, so that heat exchange carries out more sufficiently and thorough.
Embodiment 4: referring to Fig. 1, as a kind of improvement of the utility model, distributor chute change of pitch angle and distributor chute are sliding
Dynamic movement carries out chain control, and so-called chain control refers to when distributor chute tilt angle is 45 °, distributor chute upper end
In fixed point position, when distributor chute tilt angle is 0 °, distributor chute is slided along fixed point, and sliding distance slips for cloth
0.3 times of slot length, i.e. distributor chute are its own length in distance of the position of fixed point away from distributor chute upper end
0.3 times.It is operated, is realized reciprocating screw cloth (or polycyclic distributing) by above-mentioned airtight distributing device, the degree of segregation of sinter is big
It is big to reduce, then after matching by bottom gas and being blown into, it is capable of forming relatively uniform heat exchange, material is adequately cooled, described
It is passed through cooling gas in the sealed chamber of airtight distributing device, to protect driving device, the airtight distributing device realizes sinter
Rotate cloth.Substantially increase the uniformity of cloth.
The course of work: referring to figures 1-3, a kind of distributing method and feed bin structure of the anti-segregation of material, such as Fig. 1 and Fig. 2 institute
Show.This method is to enter shaft furnace 8 by receiver bin 7 in sinter, airtight distributing device 4 is arranged below receiver bin, sinter is in
Heart feed pipe 1 carries out continuous self-locking screw distribution (or polycyclic distributing) by distributor chute 6, so that sinter 9 is uniformly distributed
Into feed bin, fertilizer is carried out than the counterflow heat exchange to match with the cold wind 12 of bottom, is exchanged heat more uniform abundant, after bulk cargo is cooling
It is discharged by discharge port 11, gas is drawn by 13 after heat exchange.This method makes sinter enter receiver bin, receiver bin by conveying device
Airtight distributing device is arranged in lower section, and sinter carries out screw distribution via receiver bin feed opening, central feed tube, distributor chute, i.e.,
Distributor chute carries out longitudinal movement of fascinating while doing circumferential movement；It is not hindered by charge level when to guarantee that distributor chute fascinates
Gear makes distributor chute ontology carry out sliding along fixed point and moves, so that distributor chute cloth end is moved along same level, thus
The charge levels clothes such as realization；When setting distributor chute progress reciprocating screw cloth, one toward one is multiple, keeps its spiral heap point location dislocation mutual
It mends, so that sinter size granularity substantially uniformity is distributed in shaft furnace.Shaft furnace bottom centre be arranged conical cowl, position with
Size design, according to material, via fertilizer required for blast cap and shaft furnace hypocone air outlet, when intensity of cooling is determined, tapering
The Proportionality design of outlet air and cooling air quantity shared by blast cap outlet air is adjustable, so that heat exchange carries out more sufficiently and thorough.
Anti- segregation distributing method is effect of the distributor chute 6 by distributor chute rotation driving 3, at work continuous rotation
Turn, is fascinated by distributor chute and 5 effect is driven to change turning angle, realize screw distribution (or polycyclic distributing).Distributor chute
Sliding is fascinated with distributor chute to be carried out chain, is realized equal charge levels cloth, is avoided charge level blocking chute angle change in shaft furnace, such as
Shown in Fig. 3.When distributor chute tilt angle is 45 °, distributor chute upper end is in fixed point position；When distributor chute inclines
When rake angle is adjusted to 30 °, distributor chute sliding driving device 2 is acted, so that distributor chute is slided along fixed point, is carried out simultaneously
Angle change；When chute angle is 0 °, distributor chute slides into extreme position along fixed point, and sliding distance is that distributor chute is long
0.3 times of degree, i.e. distributor chute is the 0.3 of its own length in distance of the position of fixed point away from distributor chute upper end
Times.
By above-mentioned airtight distributing device, realize screw distribution (or polycyclic distributing), the particle segregation degree of sinter cloth
It substantially reduces, bottom gas is capable of forming more uniform heat exchange after being blown into according to fertilizer than matched requirement, and material obtains sufficiently
It is cooling.
It should be noted that above-described embodiment, is not used to limit the protection scope of the utility model, on above-mentioned basis
Upper made equivalent substitution or substitution belongs to the protection scope of the utility model claims.
Claims (7)
1. a kind of sinter high furnace cooling apparatus of the anti-segregation distribution in top and bottom mating cloth wind, which is characterized in that described cold
But device includes receiver bin, is provided with airtight cloth room below the receiver bin, and the airtight cloth room is arranged in vertical furnace
In vivo, there is cold wind gas introduction port below the shaft furnace furnace body, have gas outlet above the shaft furnace furnace body.
2. the sinter high furnace cooling apparatus of the anti-segregation distribution in top and bottom mating cloth wind according to claim 1,
It is characterized in that, the airtight distributing device includes sealed chamber, central feed tube, distributor chute, distributor chute rotation drives, cloth slips
Slot fascinates driving, distributor chute sliding driving, and the bottom of sealed chamber is arranged in the distributor chute, and the top of sealed chamber is set
It is equipped with central feed tube, the distributor chute sliding drives the two sides of centrally disposed feed pipe, and airtight distributing device is slipped in cloth
Distributor chute rotation is realized under the drive that driving that slot rotation drives, chute fascinates, distributor chute sliding drive, and is fascinated and is slided.
3. the sinter high furnace cooling apparatus of the anti-segregation distribution in top and bottom mating cloth wind according to claim 2,
It is characterized in that, the receiver bin is bulk tank, and airtight distributing device is located at below receiver bin, and central feed tube is located at airtight cloth
Device center, face top receiver bin feed opening.
4. the sinter high furnace cooling apparatus of the anti-segregation distribution in top and bottom mating cloth wind according to claim 3,
It is characterized in that, the distributor chute of the airtight distributing device is semicircle cylinder, and distributor chute realizes change of pitch angle, and inclination angle slips for cloth
The angle of groove center line and central feeding tube hub line, variation range are 0-50 °.
5. the sinter high furnace cooling apparatus of the anti-segregation distribution in top and bottom mating cloth wind according to claim 4,
It is characterized in that, is provided with conical cowl in the shaft furnace.
6. the sinter high furnace cooling apparatus of the anti-segregation distribution in top and bottom mating cloth wind according to claim 5,
It is characterized in that, distributor chute change of pitch angle and the mobile progress chain control of distributor chute sliding, so-called chain control, which refers to, works as cloth
When expecting that chute tilt angle is 45 °, distributor chute upper end is in fixed point position, when distributor chute tilt angle is 0 °
When, distributor chute is slided along fixed point, and sliding distance is 0.3 times of distributor chute length, i.e., distributor chute is in the position of fixed point
Set 0.3 times that the distance away from distributor chute upper end is its own length.
7. the sinter high furnace cooling apparatus of the anti-segregation distribution in top and bottom mating cloth wind according to claim 6,
It is characterized in that, cooling gas is passed through in the sealed chamber of the airtight distributing device, to protect driving device.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821034451.7U CN208751294U (en) | 2018-07-02 | 2018-07-02 | The sinter high furnace cooling apparatus of the anti-segregation distribution in top and bottom mating cloth wind |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821034451.7U CN208751294U (en) | 2018-07-02 | 2018-07-02 | The sinter high furnace cooling apparatus of the anti-segregation distribution in top and bottom mating cloth wind |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111121058A (en) * | 2019-12-24 | 2020-05-08 | 上海和惠生态环境科技有限公司 | Fly ash treatment equipment |
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2018
- 2018-07-02 CN CN201821034451.7U patent/CN208751294U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111121058A (en) * | 2019-12-24 | 2020-05-08 | 上海和惠生态环境科技有限公司 | Fly ash treatment equipment |
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