CN106435067A - Efficient energy-saving stable type steel slag pyrolyzer - Google Patents
Efficient energy-saving stable type steel slag pyrolyzer Download PDFInfo
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- CN106435067A CN106435067A CN201611162200.2A CN201611162200A CN106435067A CN 106435067 A CN106435067 A CN 106435067A CN 201611162200 A CN201611162200 A CN 201611162200A CN 106435067 A CN106435067 A CN 106435067A
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- steel slag
- spandrel girder
- pyrolyzer
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- furnace
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B3/00—General features in the manufacture of pig-iron
- C21B3/04—Recovery of by-products, e.g. slag
- C21B3/06—Treatment of liquid slag
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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
- F27D17/004—Systems for reclaiming waste heat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27M—INDEXING SCHEME RELATING TO ASPECTS OF THE CHARGES OR FURNACES, KILNS, OVENS OR RETORTS
- F27M2001/00—Composition, conformation or state of the charge
- F27M2001/10—Scrap material used as charge
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27M—INDEXING SCHEME RELATING TO ASPECTS OF THE CHARGES OR FURNACES, KILNS, OVENS OR RETORTS
- F27M2003/00—Type of treatment of the charge
- F27M2003/14—Pyrolising
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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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- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
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- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
- Furnace Details (AREA)
Abstract
The invention relates to the technical field of comprehensive utilization of steel slag, in particular to an efficient energy-saving stable type steel slag pyrolyzer. The pyrolyzer is provided with a pyrolyzer body, a water-cooling pyrolyzer cover is arranged at the top of the pyrolyzer body, a feeding pipe is arranged in the center of the pyrolyzer cover, a pyrolyzer top charging device is arranged above the pyrolyzer cover, and a discharging device is arranged at the bottom of the pyrolyzer body; a vapor bath-cooling belt, a spray fast-cooling belt and a tank-type hot disintegrating belt are sequentially arranged in the pyrolyzer body from top to bottom, the working linings corresponding to the vapor bath-cooling belt, the mist spray fast-cooling belt and the tank-type hot disintegrating belt are each separated by an upper joist ring and a lower joist ring, an upper cross type bearing beam and a lower cross type bearing beam are arranged above the corresponding upper joist ring and the corresponding lower joist ring respectively, the inner of each cross type bearing beam is of a hollow communication structure, an atomization nozzle is arranged on the bottom face of each cross type bearing beam, and the end heads of the upper cross type bearing beam and the lower cross type bearing beam are in butt joint with water outlet pipes of the water-cooling pyrolyzer cover respectively. The pyrolyzer is clever in design and good in tank-type hot disintegrating effect, and can achieve automation control of the whole process from dumping the molten steel slag into the pyrolyzer to discharging the molten steel slag out and stable transformation and utilization of the sensible heat of the molten steel slag, and is a revolutionary improvement to steel slag processing devices.
Description
Technical field
The present invention relates to slag comprehensive utilization technical field, especially a kind of energy-efficient stable type steel slag cracking furnace.
Background technology
China's crude steel yield alreadys exceed 800,000,000 tons/year, often produces the slag that one ton of crude steel can produce 120kg or so, from refining
The hot steel slag temperature that steel stove is discharged assumes liquid between 1300 DEG C～1500 DEG C, is not only enclosed with about in hot steel slag
10% metallic iron, and the sensible heat of hot steel slag per ton marks the caloric value of coal no less than 60kg, produces 800000000 tons of crude steel per year and just means
About 100,000,000 tons of slags to produce, wherein have about 10,000,000 tons/year of metallic irons to need to reclaim, equivalent to 6,000,000 tons/year of mark coals
Slag sensible heat awaits recycling.
At present, the processing method of China's hot steel slag mainly has heat to boil in a covered pot over a slow fire method（Stewing tank method）, hot application method, tray method, water quenching,
Wind quenching method, drum process and granulating wheel method etc., wherein hot stewing method and accounting of the hot application method in big-and-middle-sized iron and steel enterprise exceed
80%, the accounting of other processing methods is less than 20%.
Above process for treating steel slag all to recycle based on metallic iron therein, the Exposure degree utilization rate of hot steel slag
Zero is, and various processing methods all there are significant deficiency, some investments are big, and automaticity is low, operating cost height, safety
Poor reliability；Some environmental pollutions are serious, and resource utilization is low.
Patent of invention " a kind of hot steel slag cracking method "（The patent No.：ZL200910037022.4）, be to hot steel slag
The subversiveness of processing method is improved, this method can not only effective recycling slag sensible heat, and with small investment, automatically
Change degree is high, operating cost is low, processing procedure is safe and reliable, resource utilization is high, and processing environment waits well many advantages, in order to answer
Slag processing is carried out in aforementioned manners, and inventor has also applied for utility model patent " a kind of steel slag cracking furnace "（The patent No.：
ZL200920050893.5）, a kind of steel slag cracking furnace that the utility model patent is provided, including body of heater, body of heater top or on
Portion is provided with air entraining device and gallery ports, is provided with inducing QI beam and sprayer unit in the middle part of body of heater, bottom of furnace body be provided with the taper bucket and
Drawing mechanism.But the effect for carrying out slag processing using above-mentioned steel slag cracking furnace is not very good, traces it to its cause, and is because
The structure of above-mentioned steel slag cracking furnace is excessively simple, and exploitativeness is poor, therefore, researches and develops a kind of new steel slag cracking furnace, becomes mesh
Front hot steel slag processes problem demanding prompt solution.
Content of the invention
It is excessively simple that the purpose of the present invention is aiming at existing steel slag cracking furnace structure at present, is carrying out at hot steel slag
During reason, the undesirable problem for the treatment of effect, a kind of energy-efficient stable type steel slag cracking furnace is provided.
The technical scheme is that：A kind of energy-efficient stable type steel slag cracking furnace, with body of heater, body of heater is from inside to outside
Working lining, thermal insulation layer and furnace shell is sequentially provided with, the top of body of heater is equipped with bell, and bell center is provided with feed pipe, and bottom of furnace body sets
There is converter body support platform, furnace bottom drawing mechanism is housed, particularly below converter body support platform：
A. top charging apptss are also equipped with above the bell, and the top charging apptss are dischargings by loading hopper and below
Pipe constitutes, and discharge nozzle stretches into 80～150mm in feed pipe, and leaves the gap of 10～100mm between feed pipe, on feed pipe
Positioned at the lower section of discharge nozzle, push-pull valve is housed, the loading hopper is to be supported to fix by loading hopper support, and peace fixed by loading hopper support
It is mounted on the furnace shell of body of heater；Such structure can prevent the hot steel slag in slag ladle from pouring into the vibration and impact for producing during stove
Bell is caused to damage；
B. the bell is hollow body structure, and casing passes through case built with intersecting parallels spandrel girder, the feed pipe at bell center
The mouth word at internal portion intersecting parallels spandrel girder center and with welding box body one, below the push-pull valve of feed pipe between casing also
Being welded has a doughnut-shaped steel plate to form a water annulus with feed pipe within one week around feed pipe, and the doughnut-shaped steel plate is provided with water inlet pipe
External water circulation system, has some inlet openings on the casing between doughnut-shaped steel plate and feed pipe, and the side of casing is provided with 2～
8 outlet pipes；
C. the furnace interior is followed successively by steam bath cold belt, spraying quickly cooling band, the stewing cracking band of heat from top to bottom, and above-mentioned three bands institute is right
The working lining that answers is separated by upper and lower two joist circles respectively, the radial dimension of the joist circle and working lining radial dimension phase
With upper joist circle is located between steam bath cold belt working lining and spraying quickly cooling band working lining, and lower joist circle is located at spraying quickly cooling band
Between working lining and the stewing cracking band working lining of heat, on upper joist circle and lower joist circle, it is separately installed with that upper and lower two-layer is cross to hold
Weight beam, is provided with material distributing cone above the cross intersection point of the cross spandrel girder in the upper strata, and the cross of the cross spandrel girder of lower floor is handed over
It is hollow ring at point, the cross spandrel girder mutual dislocation arrangement of upper and lower two-layer；In the cross spandrel girder of the upper and lower two-layer
Portion is hollow connectivity structure, is uniformly provided with 8～24 atomizers, upper and lower two-layer on the bottom surface of cross spandrel girder
Cross spandrel girder is respectively by the connection corresponding with the outlet pipe of bell body side of respective 1～4 termination；Steam in furnace interior
Gas bath cold belt working lining upper end is provided with steam (vapor) outlet, and the purified water outside steel slag cracking furnace enters bell case via water annulus
Body, and sprayed water by the atomizer of the upper and lower two-layer spandrel girder of the outlet pipe supply of bell body side, atomizer sprays
The water for going out carries out becoming steam (vapor) outlet extraction of the steam via upper of furnace body after heat exchange with hot steel slag, enters steam insulation of coming out of the stove
Dust arrester；
D. the furnace bottom drawing mechanism is made up of a transition hopper and the discharging machine below transition hopper, and transition hopper is fixed
On the converter body support platform of steel slag cracking furnace, discharging opening below transition hopper, is provided with, in the transition hopper above discharging opening
It is provided with accident treatment hole.
Heretofore described casing includes top board, base plate and side plate, and the top board, base plate and side plate are all to adopt heat resisting steel
Material is simultaneously welded into an overall structure, and the outlet pipe of body side is mounted on side plate, and the outlet pipe of the body side is eight
Root, is connected one to one with eight terminations of the cross spandrel girder of the upper and lower two-layer of furnace interior.
Heretofore described intersecting parallels spandrel girder is welded by I-steel or channel-section steel, intersecting parallels spandrel girder upper and lower
Wing plate is welded with the top board of casing and base plate respectively, and uniformly offers 4～16 on the web of intersecting parallels spandrel girder
Limbers, a diameter of 10～60mm of limbers.
The cross spandrel girder of heretofore described upper and lower two-layer is welded by heat resisting steel or is integrally cast, upper and lower two
The spacing of the cross spandrel girder of layer is 1～5m, cross 30～60 ° of arrangements of spandrel girder mutual dislocation of upper and lower two-layer, preferably
45 ° of arrangements.
The bottom of heretofore described cross spandrel girder corresponds to each atomizer and offers screw, and atomizer spiral shell is filled
In screw.
The transverse section of heretofore described body of heater is circular or rectangle, the length >=1m of its internal diameter or minor face.
The transverse section of heretofore described body of heater is columnar structured, and the working lining is resistance to using High-Alumina or clayey
The casting material prefabricated molding of fire, prefabricated tile height is that 200～500mm is contour, and radial dimension is that 350～500mm is isometric, and radian is by pre-
Product size, divides 360 ° per 20～50 pieces of grades of ring, and prefabricated component is built by laying bricks or stones using lifting, makes the concentricity height one of each transverse section in stove
Cause, the smooth no faulting of slab ends of kiln inner working face forms straight barrel type structure.Such structure is conducive to material uniformly to sink, and reduces to work
Make the damage for serving as a contrast.
The height of heretofore described steam bath cold belt, spraying quickly cooling band and the stewing cracking band of heat is 1～8m.
Heretofore described material distributing cone is integrally cast by heat resisting steel or cast iron, and is fixed on by welding or screw rod
Above the cross spandrel girder cross intersection point in upper strata, it 600～1200mm, is highly 600～1200mm that material distributing cone base diameter is.
A diameter of 600～1200mm of heretofore described hollow ring.
Material distributing cone and hollow ring on the cross spandrel girder of heretofore described upper and lower two-layer is in steel slag cracking furnace together
Axial line on.
Heretofore described loading hopper is a up big and down small truncated cone-shaped or prismatic table shape structure, and its material is heat resisting steel or casting
Any one in ferrum, the loading hopper support is steel construction or reinforced concrete structure.
Discharging opening below heretofore described transition hopper is circular or rectangular configuration, the diameter >=1200mm of circle,
Bond length >=the 1200mm of rectangle, the accident treatment hole is circular or rectangular configuration, the diameter >=800mm of circle, rectangle
Bond length >=800mm；The discharging machine is reciprocating discharging machine or vibration type discharging machine or chain-plate type discharging machine or belt
Any one in formula discharging machine or disc type discharging machine.
The steel slag cracking furnace of the present invention, can be used cooperatively using more than two, alternately be fed with reaching the continuous of slag
And discharging work, improve production efficiency.
The work process of the present invention is：
（1）The furnace bottom drawing mechanism of steel slag cracking furnace is first turned on, makes material in stove that 1～3m is drawn off, expose that upper strata is cross to hold
Material distributing cone on weight beam；Then the push-pull valve on feed pipe, the valve in steam off outlet, being equipped with from steel mill are opened
After the slag ladle of hot steel slag is sling by overhead traveling crane, hot steel slag is slowly poured in charging hopper, under gravity red-hot steel
Slag automatically falls into the steam bath cold belt of steel slag cracking furnace through feed pipe, after the completion of slag is toppled over, close feed pipe on push-pull valve,
Open the valve on steam (vapor) outlet；
（2）Fall into after more than 1000 DEG C of steam bath cold belt of hot steel slag is broken up by material distributing cone and be distributed to the upper of material distributing cone periphery
Above layer spandrel girder, and V-type and inverted cone charge level is respectively formed beneath with material distributing cone below the spandrel girder of upper strata, the kiln in discharging
Interior slag is moved down under gravity and is overturn by the cross spandrel girder of lower floor, and formed below in the cross spandrel girder of lower floor
New V-type charge level；During the V-type to upper and lower two-layer spandrel girder and inverted cone charge level atomizing spray, hot steel slag is come
Self-heating boils in a covered pot over a slow fire cracking band and the Low Temperature Steam of spraying quickly cooling band is cooled to less than 800 DEG C, and Low Temperature Steam is then risen by hot steel slag heating
Temperature carries out heat energy recycle to more than 300 DEG C after drawing through steam (vapor) outlet；
（3）Above the cross spandrel girder in upper strata and material distributing cone, less than 800 DEG C of middle temperature slag enters spraying quickly cooling band, and from upper
The spraying of the cross spandrel girder of layer carries out heat exchange, and slag temperature is rapidly cooled to 500 DEG C or so, while the spraying of quickly cooling band of spraying
By the heating vaporization of middle temperature slag, steam ascends into steam bath cold belt carries out heat exchange with the hot steel slag for just entering stove；
（4）In discharging in kiln slag continue under gravity to fall by the cross spandrel girder agitation of lower floor, upset, broken after
Enter the stewing cracking band of heat, and in lower floor's spandrel girder new V-type charge level formed below, the spraying of slag and the cross spandrel girder of lower floor
Carry out heat exchange, make slag temperature continue to drop to less than 200 DEG C, spraying then with slag heat exchange after heat up become steam rise participate in
Upper strata slag heat exchange cooling；After the heat of certain time boils in a covered pot over a slow fire cracking, repeat the above steps（1）.
Above-mentioned periodic charging discharging during, hot steel slag under self gravitation effect, from steel slag cracking furnace
From top to bottom successively by steam bath cold belt, spraying quickly cooling band, the stewing cracking band of heat, it is cooled to less than 80 DEG C successively, and completes
Slag cooling cracking process, is sent to slag grading, magnetic separation system via furnace bottom drawing mechanism after drawing off；Upper and lower two in stove
Become steam rising after the water that the atomizer of the cross spandrel girder of layer sprays and slag heat exchange, be warming up to furnace roof successively and reach
More than 300 DEG C, introducing residual neat recovering system via steam (vapor) outlet carries out heat energy recycle.
In above process, the purified water from water circulation system continuously enters water annulus, water cooled bell
The inlet opening of top is entered in water cooled cover, then eight outlet pipes through bell side are held by upper and lower two-layer is cross respectively
Respective four terminations of weight beam are entered in the cross spandrel girder of upper and lower layer, via the mist below the cross spandrel girder of upper and lower two-layer
Change shower nozzle carries out atomizing spray to the inverted cone charge level below spandrel girder and V-type charge level, realizes to slag from top to bottom uniform
Spray cooling, while the water of flowing can carry out cooling down to bell and spandrel girder in spandrel girder, makes bell and spandrel girder grow
Phase safe operation.
The present invention is with respect to prior art, and its inventive point is：
（1）Top charging apptss are added in furnace roof, enable the hot steel slag in slag ladle quickly and safely to pour into steel slag cracking
In stove, while ensureing the sealing of furnace roof；
（2）Bell is designed as water cooled cover, makes hot steel slag be absorbed the heat radiation of bell by circulating water flow, so that water-cooled
Bell long-term safety can be run at a lower temperature, while also making slag sensible heat be able to fully conversion, reclaim；
（3）In the cross spandrel girder of furnace interior design two-layer, and the cross spandrel girder dislocation arrangement of two-layer, beam bottom adds
Atomizer, makes hot steel slag experience agitation twice, upset after falling in stove from top to bottom, crush, contributes to steel slag cracking
Fully and uniformly lower the temperature；It is hollow structure inside cross spandrel girder, the water of flowing can play cooling effect, increase to beam body
The life-span of spandrel girder；
（4）The working lining of furnace interior is separated by upper, two joist circles, is carried steel slag cracking furnace three relatively independent, and is met
Balanced operation lining load and the needs for sinking；
（5）In lower portion of furnace body design furnace bottom drawing mechanism and accident treatment hole, be conducive to smoothly drawing off and accident for bulk slag
Process.
The invention has the beneficial effects as follows：Hot steel slag experiences that steam bath is cold in the steel slag cracking furnace, spraying speed is hot and cold stewing splits
Xie Hou, free calcium oxide therein and free magnesium can completely hydration swelling and so that slag is cracked completely, at the same time,
Slag temperature is reduced to less than 80 DEG C slowly above by 1000 DEG C, and the purified water that atomization is sprayed into then is gradually heated by the sonochemical activity intensification and was formed
Vapourss, and continuously discharge from furnace roof, and steam thermal energy recovery system is entered, so as to stablizing, efficiently reclaim steel
Slag sensible heat；Steel slag cracking furnace of the present invention is a thermal-insulating sealing structure, and is in malleation in stove, enters in stove without air and steam
Mixing, can make steel slag cracking furnace and steam thermal energy recovery system be run under conditions of safe and reliable steadily in the long term, and realize peace
Full accident is zero, and slag Exposure degree rate stewing is split by 30% heat for bringing up to 60%, i.e., year 500000 tons of hot steel slags for the treatment of capacity
Solution line year, callable slag sensible heat was brought up to the caloric value of 20,000 tons of mark coals by 10,000 tons of mark coals；In steel slag cracking furnace of the present invention
Significant components all using water-cooling structure, add the particular design of furnace lining, be advantageous to the length of energy recovery and steel slag cracking furnace
Life-span is run so as to which disposable furnace life reaches more than 10 years.
Steel slag cracking furnace of the present invention has very strong exploitativeness, and the hot steel slag from steel mill is from pouring into stove to going out
The overall process of stove all can achieve Automated condtrol, no matter and the quantity of converter, production capacity have much, as long as press hot steel slag generation
Amount customized go out plural steel slag cracking furnace, it is possible to carry out the stewing cracking of heat and the waste heat recovery of highly effective and safe to which.
Description of the drawings
Fig. 1 is that the master of the present invention cuts open schematic diagram；
Fig. 2 is the top view of Fig. 1；
Fig. 3 is the A-A profile of Fig. 1；
Fig. 4 is the B-B profile of Fig. 1；
Fig. 5 is the C-C profile of Fig. 1.
In figure, 1 body of heater, 2 working linings, 3 thermal insulation layers, 4 furnace shells, 5 bells, 6 feed pipes, 7 bodies of heater are propped up
Support platform, 8 furnace bottom drawing mechanisms, 9 top charging apptss, 10 loading hoppers, 11 discharge nozzles, 12 push-pull valves, 13 add
Hopper base, 14 intersecting parallels spandrel girders, 15 doughnut-shaped steel plates, 16 water annulus, 17 water inlet pipes, 18 inlet openings,
19 outlet pipes, 20 steam bath cold belts, 21 spraying quickly cooling bands, the stewing cracking band of 22 heat, joist circle on 23,24 subiculums
Liang Quan, the cross spandrel girder in 25 upper stratas, the cross spandrel girder of 26 lower floors, 27 material distributing cones, 28 hollow rings, 29 mists
Change shower nozzle, 30 steam (vapor) outlets, 31 transition hopper, 32 discharging machines, 33 discharging openings, 34 accident treatment holes, 35 lead to
Water hole.
Specific embodiment
Embodiment 1
The present embodiment is with 200m3, as a example by this day processes the steel slag cracking furnace of 900 tons/stove, explain in detail the technical side of the present invention
Case, but the invention is not limited in any way for the present embodiment.
Referring to Fig. 1～5, the technical scheme is that：A kind of energy-efficient stable type steel slag cracking furnace, with body of heater 1,
Body of heater 1 is sequentially provided with working lining 2, thermal insulation layer 3 and furnace shell 4 from inside to outside, and the top of body of heater 1 is equipped with bell 5, and 5 center of bell sets
There is feed pipe 6,1 bottom of body of heater is provided with converter body support platform 7,7 lower section of converter body support platform is equipped with furnace bottom drawing mechanism 8, particularly：
A. the top of the bell 5 is also equipped with top charging apptss 9, the top charging apptss 9 be by loading hopper 10 and below
Discharge nozzle 11 constitute, discharge nozzle 11 stretches into 80～150mm in feed pipe 6, and leaves 10～100mm's between feed pipe 6
Gap, is equipped with push-pull valve 12 positioned at the lower section of discharge nozzle 11 on feed pipe 6, and the loading hopper 10 is supported by loading hopper support 13
Fixing, loading hopper support 13 is fixedly mounted on the furnace shell 4 of body of heater 1；In the present embodiment, specifically the discharge nozzle 11 stretches into charging
100mm in pipe 6, the gap between discharge nozzle and feed pipe is 60mm；
B. the bell 5 is that hollow body structure, casing is worn built with intersecting parallels spandrel girder 14, the feed pipe 6 at bell center
Cross 14 center of box house intersecting parallels spandrel girder mouth word and with welding box body one, below the push-pull valve 12 of feed pipe 6 with
Also being welded between casing has a doughnut-shaped steel plate ring 15 to form a water annulus 16, the annular with feed pipe within 6 one weeks around feed pipe
Steel plate 15 is provided with the external water circulation system of water inlet pipe 17, has some on the casing between doughnut-shaped steel plate 15 and feed pipe 6
Inlet opening 18, the side of casing is provided with 2～8 outlet pipes 19；In the present embodiment, the outlet pipe of concrete body side is 8；
C. steam bath cold belt 20, spraying quickly cooling band 21, heat stewing cracking band 22 are followed successively by inside the body of heater 1 from top to bottom, above-mentioned
The corresponding working lining of three bands is separated by upper and lower two joist circles 23 and 24 respectively, the radial dimension of the joist circle and work
Make lining footpath 2 to equivalently-sized, upper joist circle 23 is located at 20 working lining of steam bath cold belt and spraying quickly cooling is carried between 21 working linings, under
Joist circle 24 is located at spraying quickly cooling and carries between 21 working linings and stewing 22 working linings of cracking band of heat, upper joist circle 23 and lower joist circle 24
On be separately installed with the cross spandrel girder 25 and 26 of upper and lower two-layer, above the cross intersection point of the cross spandrel girder 25 in the upper strata
Material distributing cone 27 is installed, the cross point of intersection of the cross spandrel girder 26 of lower floor is hollow ring 28, the cross spandrel girder 25 in upper strata
With cross 26 mutual dislocation of the spandrel girder arrangement of lower floor；Tie for hollow connection inside the cross spandrel girder of the upper and lower two-layer
Structure, is uniformly provided with 8～24 atomizers 29 on the bottom surface of cross spandrel girder（16 atomizations are specially in the present embodiment
Shower nozzle）, the cross spandrel girder of upper and lower two-layer is respectively by respective 1～4 termination and the outlet pipe 19 pairs of 5 body side of bell
Should connect（Eight terminations of the upper and lower cross spandrel girder of two-layer, eight water outlets respectively with bell body side in the present embodiment
Pipe corresponds to connection）；Steam (vapor) outlet is provided with 1 inner vapor of body of heater bath, 20 working lining upper end of cold belt, net outside steel slag cracking furnace
Change water via entrance 5 casing of bell of water annulus 16, and upper and lower two-layer is supplied by the outlet pipe 19 of 5 body side of bell and hold
The atomizer 29 of weight beam 25 and 26 is sprayed water, and the water that atomizer 29 sprays carries out becoming steam after heat exchange with hot steel slag
Draw via the steam (vapor) outlet 30 on 1 top of body of heater, enter steam insulation dust arrester of coming out of the stove；
D. the furnace bottom drawing mechanism 8 is made up of a transition hopper 31 and the discharging machine 32 below transition hopper, Transition Materials
Bucket 31 is fixedly mounted on the converter body support platform 7 of steel slag cracking furnace, and 31 lower section of transition hopper is provided with discharging opening 33, on discharging opening 33
The transition hopper 32 of side is provided with accident treatment hole 34.
Casing described in the present embodiment includes top board, base plate and side plate, the top board, base plate and side plate be all using heat-resisting
Steel matter is simultaneously welded into an overall structure, and the outlet pipe of body side is mounted on side plate, with the upper and lower two-layer cross of furnace interior
Eight terminations of type spandrel girder connect one to one.
Heretofore described intersecting parallels spandrel girder 14 is welded by I-steel or channel-section steel（It is to adopt work in the present embodiment
Word steel）, the upper and lower wing plate of intersecting parallels spandrel girder 14 is welded with the top board of casing and base plate respectively, and in intersecting parallels load-bearing
8 limbers 35, a diameter of 30mm of limbers 35 are uniformly offered on the web of beam.
The cross spandrel girder 25 and 26 of heretofore described upper and lower two-layer is welded by heat resisting steel or is integrally cast,
The spacing of the cross spandrel girder of upper and lower two-layer is 1～5m（4m is specially in the present embodiment）, the cross spandrel girder of upper and lower two-layer
30～60 ° of arrangements of mutual dislocation, specifically select 45 ° of arrangements in the present embodiment.
Hollow triangular structure inside cross spandrel girder 25 and 25 described in the present embodiment for closing, the bottom of triangle
Portion corresponds to the screw that each atomizer 29 all offers a diameter of 16mm, and atomizer 29 is that spiral shell is mounted in screw.
The transverse section of heretofore described body of heater 1 is circular or rectangle, the length >=1m of its internal diameter or minor face, the present embodiment
Described in the transverse section of body of heater be cylindrical shape, its internal diameter is 4m, the furnace shell 4 to be rolled and is formed with the steel plate of 18mm thickness.
Heretofore described working lining 2 is, prefabricated tile height pre-formed using High-Alumina or clay refractory casting material
Contour for 200～500mm, radial dimension is that 350～500mm is isometric, and radian presses prefabricated component size, per 20～50 pieces of deciles of ring
360 °, prefabricated component is built by laying bricks or stones using lifting, makes the concentricity of each transverse section in stove highly consistent, the smooth no faulting of slab ends shape of kiln inner working face
Become straight barrel type structure.In the present embodiment, specifically the prefabricated tile height is 350mm, and radial dimension is 400mm, radian by per ring 30
360 ° of block etc. point, is in straight barrel type vertical section in stove, and in stove, the smooth no faulting of slab ends of working lining, is beneficial to material and uniformly sinks, and reduce
Damage to working lining.
Heretofore described steam bath cold belt 20, spraying quickly cooling band 21 and stewing cracking of heat are 1～8m with 22 height.This
In embodiment, concrete steam bath cold belt and spraying quickly cooling band are highly 4m, and hot stewing cracking band height is 6m.
Heretofore described material distributing cone 27 is integrally cast by heat resisting steel or cast iron, and is fixed by welding or screw rod
Above the cross 25 cross intersection point of spandrel girder in upper strata, 27 base diameter of material distributing cone be 600～1200mm, highly for 600～
1200mm.It 800mm, is highly 1200mm that in the present embodiment, concrete material distributing cone base diameter is.
A diameter of 600～1200mm of heretofore described hollow ring 28.In the present embodiment, concrete hollow ring is straight
Footpath is 800mm.
Material distributing cone 27 and hollow ring 28 on the cross spandrel girder 25 and 26 of upper and lower two-layer described in the present embodiment exists together
On the axial line of steel slag cracking furnace.
Loading hopper 10 described in the present embodiment is a up big and down small truncated cone-shaped or prismatic table shape structure, and its material is heat resisting steel
Or any one of cast iron, the loading hopper support 13 is steel construction or reinforced concrete structure.In the present embodiment, loading hopper is
The prismatic table shape structure that is made using heat resisting steel, loading hopper support is steel construction.
The discharging opening of the lower section of heretofore described transition hopper 31 is circular or rectangular configuration, circular diameter >=
1200mm, the bond length >=1200mm of rectangle, the accident treatment hole 34 is circular or rectangular configuration, circular diameter >=
800mm, the bond length >=800mm of rectangle；The discharging machine 32 is reciprocating discharging machine or vibration type discharging machine or chain-plate type
Any one in discharging machine or belt type outlet material machine or disc type discharging machine.In the present embodiment, concrete discharging opening is specially square
Shape, it is 1250mm that its length is 1500mm, width, is circle above transition hopper, identical with the internal diameter of steel slag cracking furnace, is
4000mm, it is 800mm that the accident treatment hole is rectangle, width, is highly 1000mm, the discharging machine below the transition hopper
For the reciprocating discharging machine of K4 type.
The invention is not limited in any way for the present embodiment, and anyone is on the basis of according to the claims in the present invention principle
The deformation that is done, equivalent variations of structure etc. are regarded as falling into the claims of the present invention, in the present embodiment
Body of heater 1, working lining 2, thermal insulation layer 3, furnace shell 4, bell 5, feed pipe 6, converter body support platform 7, furnace bottom drawing mechanism 8, top filling
Device 9, loading hopper 10, discharge nozzle 11, push-pull valve 12, loading hopper support 13, intersecting parallels spandrel girder 14, doughnut-shaped steel plate 15, annular
Water channel 16, water inlet pipe 17, inlet opening 18, outlet pipe 19, steam bath cold belt 20, spraying quickly cooling band 21, the stewing cracking band 22 of heat, pop-up
Beam circle 23, lower joist circle 24, the cross spandrel girder 25 in upper strata, the cross spandrel girder 26 of lower floor, material distributing cone 27, hollow ring 28,
Atomizer 29, steam (vapor) outlet 30, transition hopper 31, discharging machine 32, discharging opening 33, accident treatment hole 34 and limbers 35 big
The selection of little, specification and material can be adjusted according to actual needs, and these adjustment have no the change of substantive principle, all belong to
In protection scope of the present invention.
Claims (10)
1. a kind of energy-efficient stable type steel slag cracking furnace, with body of heater, body of heater is sequentially provided with working lining, thermal insulation layer from inside to outside
And furnace shell, the top of body of heater is equipped with bell, and bell center is provided with feed pipe, and bottom of furnace body is provided with converter body support platform, converter body support
Furnace bottom drawing mechanism is housed below platform, it is characterised in that：
A. top charging apptss are also equipped with above the bell, and the top charging apptss are dischargings by loading hopper and below
Pipe constitutes, and discharge nozzle stretches into 80～150mm in feed pipe, and leaves the gap of 10～100mm between feed pipe, on feed pipe
Positioned at the lower section of discharge nozzle, push-pull valve is housed, the loading hopper is to be supported to fix by loading hopper support, and peace fixed by loading hopper support
It is mounted on the furnace shell of body of heater；
B. the bell is hollow body structure, and casing passes through case built with intersecting parallels spandrel girder, the feed pipe at bell center
The mouth word at internal portion intersecting parallels spandrel girder center and with welding box body one, below the push-pull valve of feed pipe between casing also
Being welded has a doughnut-shaped steel plate to form a water annulus with feed pipe within one week around feed pipe, and the doughnut-shaped steel plate is provided with water inlet pipe
External water circulation system, has some inlet openings on the casing between doughnut-shaped steel plate and feed pipe, and the side of casing is provided with 2～
8 outlet pipes；
C. the furnace interior is followed successively by steam bath cold belt, spraying quickly cooling band, the stewing cracking band of heat from top to bottom, and above-mentioned three bands institute is right
The working lining that answers is separated by upper and lower two joist circles respectively, the radial dimension of the joist circle and working lining radial dimension phase
With upper joist circle is located between steam bath cold belt working lining and spraying quickly cooling band working lining, and lower joist circle is located at spraying quickly cooling band
Between working lining and the stewing cracking band working lining of heat, on upper joist circle and lower joist circle, it is separately installed with that upper and lower two-layer is cross to hold
Weight beam, is provided with material distributing cone above the cross intersection point of the cross spandrel girder in the upper strata, and the cross of the cross spandrel girder of lower floor is handed over
It is hollow ring at point, the cross spandrel girder mutual dislocation arrangement of upper and lower two-layer；In the cross spandrel girder of the upper and lower two-layer
Portion is hollow connectivity structure, is uniformly provided with 8～24 atomizers, upper and lower two-layer on the bottom surface of cross spandrel girder
Cross spandrel girder is respectively by the connection corresponding with the outlet pipe of bell body side of respective 1～4 termination；Steam in furnace interior
Gas bath cold belt working lining upper end is provided with steam (vapor) outlet, and the purified water outside steel slag cracking furnace enters bell case via water annulus
Body, and sprayed water by the atomizer of the upper and lower two-layer spandrel girder of the outlet pipe supply of bell body side, atomizer sprays
The water for going out carries out becoming steam (vapor) outlet extraction of the steam via upper of furnace body after heat exchange with hot steel slag, enters steam insulation of coming out of the stove
Dust arrester；
D. the furnace bottom drawing mechanism is made up of a transition hopper and the discharging machine below transition hopper, and transition hopper is fixed
On the converter body support platform of steel slag cracking furnace, discharging opening below transition hopper, is provided with, in the transition hopper above discharging opening
It is provided with accident treatment hole.
2. a kind of energy-efficient stable type steel slag cracking furnace according to claim 1, it is characterised in that：The casing includes
Top board, base plate and side plate, the top board, base plate and side plate are all using heat resisting steel material and to be welded into an overall structure, case
The outlet pipe of body side surface is mounted on side plate, and the outlet pipe of the body side is eight, cross with the upper and lower two-layer of furnace interior
Eight terminations of spandrel girder connect one to one.
3. a kind of energy-efficient stable type steel slag cracking furnace according to claim 1, it is characterised in that：The intersecting parallels holds
Weight beam is welded by I-steel or channel-section steel, and the upper and lower wing plate of intersecting parallels spandrel girder is welded with the top board of casing and base plate respectively
Connect one, and uniformly offer 4～16 limbers on the web of intersecting parallels spandrel girder, limbers a diameter of 10～
60mm.
4. a kind of energy-efficient stable type steel slag cracking furnace according to claim 1, it is characterised in that：Described upper and lower two
The cross spandrel girder of layer is welded by heat resisting steel or is integrally cast, and the spacing of the cross spandrel girder of upper and lower two-layer is 1～
5m, 30～60 ° of arrangements of the cross spandrel girder mutual dislocation of upper and lower two-layer.
5. a kind of energy-efficient stable type steel slag cracking furnace according to claim 1, it is characterised in that：The horizontal stroke of the body of heater
Section is circular or rectangle, the length >=1m of its internal diameter or minor face.
6. a kind of energy-efficient stable type steel slag cracking furnace according to claim 1, it is characterised in that：The horizontal stroke of the body of heater
Section is columnar structured, and the working lining is, prefabricated tile height pre-formed using High-Alumina or clay refractory casting material
Contour for 200～500mm, radial dimension is that 350～500mm is isometric, and radian presses prefabricated component size, per 20～50 pieces of deciles of ring
360 °, prefabricated component is built by laying bricks or stones using lifting, makes the concentricity of each transverse section in stove highly consistent, the smooth no faulting of slab ends shape of kiln inner working face
Become straight barrel type structure.
7. a kind of energy-efficient stable type steel slag cracking furnace according to claim 1, it is characterised in that：The steam bath is cold
The height of band, spraying quickly cooling band and the stewing cracking band of heat is 1～8m.
8. a kind of energy-efficient stable type steel slag cracking furnace according to claim 1, it is characterised in that：The material distributing cone is
It is integrally cast by heat resisting steel or cast iron, and is fixed on the cross spandrel girder cross intersection point in upper strata by welding or screw rod
Side, it 600～1200mm, is highly 600～1200mm that material distributing cone base diameter is.
9. a kind of energy-efficient stable type steel slag cracking furnace according to claim 1, it is characterised in that：The hollow ring
A diameter of 600～1200mm.
10. a kind of energy-efficient stable type steel slag cracking furnace according to claim 1, it is characterised in that：The Transition Materials
The discharging opening of bucket lower section is circular or rectangular configuration, and circular diameter >=1200mm, the bond length >=1200mm of rectangle are described
Accident treatment hole is circular or rectangular configuration, circular diameter >=800mm, the bond length >=800mm of rectangle；The discharging machine
For appointing in reciprocating discharging machine or vibration type discharging machine or chain-plate type discharging machine or belt type outlet material machine or disc type discharging machine
Meaning is a kind of.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113462830A (en) * | 2021-07-09 | 2021-10-01 | 内蒙古高等级公路建设开发有限责任公司 | Hot slag cracking processing device |
| TWI803197B (en) * | 2022-02-17 | 2023-05-21 | 中聯資源股份有限公司 | A method of stabilizing steel slag by steam aging treatment |
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| CN106435067B (en) | 2018-06-29 |
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Effective date of registration: 20180920 Address after: Room 8, North of District B, 8th Floor, Culture Road, Maba Town, Qujiang District, Shaoguan City, Guangdong Province Patentee after: SHAOGUAN QUJIANG SHENGDA METALLURGICAL SLAG ENVIRONMENTAL PROTECTION TECHNOLOGY DEVELOPMENT CO., LTD. Address before: 435000 Ma Ling Shan mining area, Yin Zu Town, Daye City, Huangshi, Hubei Patentee before: DAYE HUANYU CALCIUM INDUSTRY TECHNOLOGY CO., LTD. |