CN102464457B - Granulation wheel for metallurgy slag processing apparatus - Google Patents
Granulation wheel for metallurgy slag processing apparatus Download PDFInfo
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- CN102464457B CN102464457B CN 201010532690 CN201010532690A CN102464457B CN 102464457 B CN102464457 B CN 102464457B CN 201010532690 CN201010532690 CN 201010532690 CN 201010532690 A CN201010532690 A CN 201010532690A CN 102464457 B CN102464457 B CN 102464457B
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Abstract
The invention relates to a granulation wheel for a metallurgy slag processing apparatus. A hollow shaft is arranged in the center of the granulation wheel; two annular end plates are arranged at two ends of the granulation wheel; a plurality of support former plates are arranged between the annular end plates and the hollow shaft; a diversion cone is arranged in the middle of the hollow shaft; the diversion cone comprises two sputtering conical surfaces; sputtering conical surfaces are provided with a plurality of water diversion blades; a plurality of fragmentation teeth are arranged between the two annular end plates; the fragmentation teeth are detachable straight teeth; upstream faces of the fragmentation teeth are provided with a plurality of water stopping card slots. The invention has high self-cooling efficiency, thereby having high tolerance to high temperature slag; a fragmentation pile of the invention increases fragmentation capability of the granulation wheel, overcomes a defect of slag adhering on the granulation wheel and prolongs a service life of the granulation wheel.
Description
Technical field
The present invention relates to a kind of granulating wheel for treatment device for metallugical cinder; between two end plates of this granulating wheel, a plurality of crushing teeths are housed; described crushing teeth is provided with board slot in water and broken stake; the center of granulating wheel is provided with guiding cone, and the sputter conical surface of described guiding cone is provided with radially splitter vane.
Background technology
Chinese patent 97228276.9 discloses a kind of converting slags granulating device; this device comprises that transmission mechanism, slag slip mouth, pelletizer, water trap, hopper; the slag of being discharged by blast furnace slips mouth by slag and is injected in pelletizer; be provided with granulating wheel in pelletizer slag is carried out fragmentation; meanwhile, there is water coolant to be sprayed onto on slag it is carried out shrend, make slag become fine granularity; fall in water trap again and dewater, by hopper, short grained slag is exported granulating device at last.This apparatus structure is reasonable in design, and level of automation is high; But; granulating wheel on this device is the wolf's fang club shaped structure, and is less with the contact area of slag, lower to the breaking capacity of slag; especially the viscosity of slag is larger; the effect of processing is undesirable, has affected the processing power of this granulating device, in addition; the temperature of blast furnace slag is higher; this granulating wheel is not high to the holding capacity of the slag of high-temperature, very easily damages, and affects the efficient of granulated slag yet.Therefore, need to propose a kind of new granulating wheel that is used for treatment device for metallugical cinder.
Summary of the invention
The object of the present invention is to provide a kind of granulating wheel for treatment device for metallugical cinder, a plurality of crushing teeths are arranged on granulating wheel of the present invention, crushing teeth is provided with a plurality of board slots in water, and the working face of crushing teeth is provided with a plurality of broken stakes, on the surface of described broken stake, the boride ceramics protective layer is set; The present invention has higher from cooling efficient, thereby high-temperature slag is had higher tolerance, and broken stake of the present invention has also overcome the defective that granulating wheel adheres to slag except the breaking capacity that improves granulating wheel, extended the work-ing life of granulating wheel.
The objective of the invention is to be realized by following technical proposals: a kind of granulating wheel for treatment device for metallugical cinder, the center of described granulating wheel is provided with a tubular shaft, the two ends of described granulating wheel are provided with two annular endplates, be provided with a plurality of support disc between described annular endplate and described tubular shaft, described tubular shaft middle part arranges a guiding cone, described guiding cone comprises two sputter conical surfaces, and the described sputter conical surface is provided with a plurality of radially splitter vanes; Between described two annular endplates, a plurality of crushing teeths are housed, described crushing teeth is dismountable straight-tooth, and the upstream face of described crushing teeth is provided with a plurality of board slots in water.
Compared with the prior art the present invention has following advantage:
1, granulating wheel of the present invention is equipped with a plurality of crushing teeths, because adopted dismountable straight-tooth, in shattering process, has increased the contact area of this crushing teeth and metallurgical cinder, has improved the break process ability to slag; Crushing teeth is easily worn part, and dismountable design was changed it and is more prone to when losing efficacy.
2, the working face of crushing teeth of the present invention is provided with a plurality of broken stakes, and in shattering process, broken stake is controlled golden slag with high temperature and directly contacted, and has slowed down the loss of crushing teeth body, has extended the work-ing life of crushing teeth, thereby saves material, reduces production costs.
3, the broken stake on crushing teeth of the present invention adopts special process to process, and applies the boride ceramics protective layer in broken stake, both can improve the ability to bear to high-temperature slag, can reduce again the adhesion of high-temperature slag.
4, guiding cone is equipped with in the present invention, the sputter conical surface of guiding cone is designed to the scattering pitted skin, the cooling-water flowing that sprays on it can be dispersed into water droplet, be splashed to uniformly on the board slot in water of crushing teeth, can reach better cooling performance, make crushing teeth have higher tolerance to high-temperature slag.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples.
Fig. 1 is cross sectional representation of the present invention (C of Fig. 2-C sectional view);
Fig. 2 is longitudinal section of the present invention schematic diagram (A of Fig. 1-A sectional view);
Fig. 3 is the front schematic view of crushing teeth of the present invention;
Fig. 4 is the schematic cross-section (B of Fig. 3-B sectional view) of crushing teeth of the present invention;
Fig. 5 is the longitudinal section schematic diagram of embodiments of the invention two;
Fig. 6 is the schematic cross-section of the crushing teeth of embodiments of the invention two;
Fig. 7 is the schematic diagram of the working face of crushing teeth of the present invention.
Embodiment
Embodiment one:
Referring to Fig. 1, Fig. 2, Fig. 3 (Fig. 3 is 2 times of enlarged views of crushing teeth); granulating wheel for treatment device for metallugical cinder of the present invention is steel framed structure; the center of described granulating wheel be provided with a tubular shaft 1(be horizontally disposed with); the two ends of described granulating wheel are provided with two annular endplates 11, radially are provided with eight between described annular endplate and described tubular shaft and support disc 12.In the present embodiment, the width of granulating wheel is 1 meter, and outer (directly) footpath of described annular endplate is also 1 meter.Described tubular shaft middle part arranges a guiding cone 2, and described guiding cone comprises two sputter conical surfaces 21, and the described sputter conical surface is provided with a plurality of radially splitter vanes 22.Between described two annular endplates, eight crushing teeths 3 are housed, described crushing teeth is dismountable straight-tooth, and the upstream face 36 of described crushing teeth is provided with a plurality of board slots in water 37, and the upstream face of described crushing teeth refers to the internal surface of crushing teeth.Described crushing teeth two ends are provided with flange 33, and described crushing teeth is arranged on described annular endplate by flange.
Referring to Fig. 2, Fig. 3, in the present embodiment, described guiding cone profile is American football shape, guiding cone inside is hollow structure, the outside is made of two symmetrically arranged sputter conical surfaces 21, and the cone angle of two sputter conical surfaces is selected between 60 °～100 °, and most preferred cone angle is 80 °.Described guiding cone and tubular shaft fixed installation.Fixed form can adopt conventional technique means, is not described in detail at this.Be separately installed with 16 radially splitter vanes 22 on two sputter conical surfaces of guiding cone, described splitter vane and guiding cone are welded and fixed.The sputter conical surface of guiding cone will spray cooling-water flowing on it to the surrounding sputter, then by splitter vane radially, cooling water droplet will be assigned on the internal surface of each crushing teeth uniformly.The internal surface of crushing teeth refers to the surface corresponding with tubular shaft, and board slot in water 37 is the conduits that form by between a plurality of stripe board 32 that are arranged on the crushing teeth internal surface.The water coolant that is splashed to the crushing teeth internal surface is resided in this conduit under the action of the centrifugal, and uniform fold improves the cooling performance of crushing teeth greatly on the crushing teeth internal surface.The height of described stripe board is generally the 10-20 millimeter.
Referring to Fig. 1, Fig. 2, in the present embodiment, between described two annular endplates 11, eight crushing teeths 3 are housed, described eight crushing teeths are end to end, along circumference.Described crushing teeth is formed by the rare earth alloy steel casting, has the performances such as wear-resistant, high temperature resistant and shock-resistant.In shattering process, increased the contact area of this crushing teeth and metallurgical cinder, improved the granulation ability to the break process of slag; Crushing teeth is easily worn part, and it is easier that dismountable design is changed it.
Referring to Fig. 3, Fig. 4, Fig. 7 (Fig. 7 is the stretch-out view of the working face of crushing teeth); in the present embodiment; be inlaid with a plurality of broken stakes 31 on the working face 35 of described crushing teeth, the working face of described crushing teeth refers to the outside surface of crushing teeth (being positioned at the outside surface of granulating wheel).The top of broken stake is hemispherical, and its spherical radius is 10～15mm.That this fragmentation stake has is high temperature resistant, wear-resistant, the characteristic such as dry slag not; In shattering process, broken stake directly contacts with controlling golden slag, has slowed down the loss of crushing teeth, has extended the work-ing life of crushing teeth.For a broken surface is protected, extend the work-ing life of broken stake, on the surface of described broken, the boride ceramics protective layer is set.Broken stake 31 is pressed arranged on the working face 35 of crushing teeth, as shown in Figure 7; Transverse distance between described broken stake is 30～50mm, and the fore-and-aft distance between described broken stake is 30～50mm.Broken stake can be planted on crushing teeth by engage thread; Also can be by on the working face of crushing teeth, through hole being set, the fragmentation stake is installed be fixed in through hole.In order to adapt to the frequent variations of working temperature, keep rational expansion gap between broken stake and open holes (threaded hole or through hole).In the present embodiment, the setting of boride ceramics protective layer is to adopt special process to generate, and is a kind of boride-nitride complex-phase ceramic, and sintering temperature is 1700 ℃, and the surface need to polish smooth, and realizes high temperature resistant, as not adhere to slag effect.
Referring to Fig. 1, Fig. 2, granulating wheel of the present invention need to be arranged in a pelletizer housing, and pelletizer is arranged on a treatment device for metallugical cinder.In the present embodiment, tubular shaft 1 left part of granulating wheel is equipped with a left half axle, and the tubular shaft right part is equipped with a right axle shaft, and left half axle and right axle shaft rotate by bearing and bracing frame respectively and install.One end of right axle shaft is fixedly connected with the output terminal of drive-motor.Granulating wheel is clockwise high speed rotary motion under the driving of drive-motor, and the rotating speed of granulating wheel is 100～300 rev/mins.The metallurgical cinder that granulating wheel will fall thereon impacts fragmentation by crushing teeth 3; the slag temperature that arrives granulating wheel can reach 1260 °; therefore need to carry out cooling to granulating wheel timely; particularly carry out cooling to crushing teeth; respectively be provided with a high-pressure sprayer outside the annular endplate at granulating wheel two ends; horizontal-jet water coolant from outside to inside, the temperature of water coolant remains on 40 ℃～80 ℃.Cooling-water flowing enters granulating wheel from the space of 12 of the support disc at granulating wheel two ends; and be directly injected on the guiding cone 2 of rotation; the sputter conical surface 21 of guiding cone to the surrounding sputter, and is assigned to the cooling water droplet of sputter the internal surface of each crushing teeth 3 by splitter vane 22 radially with cooling-water flowing uniformly.In order to guarantee the granulating wheel motion steadily, described annular endplate is provided with a plurality of water vents, and the present embodiment is provided with eight water vents 13 along circumference, and described water vent is manhole, the inner unnecessary water coolant of granulating wheel can be discharged from two ends by water vent.
Embodiment two:
The present embodiment is the improvement project on embodiment one basis, the technical characterictic that occurs in the present embodiment or similar part identical with embodiment one, can understand with reference to disclosed content in embodiment one, also should as the disclosed content of the present embodiment, not be repeated in this description herein.
Referring to Fig. 5, in the present embodiment, in order to reach better sputter effect, the sputter conical surface of guiding cone 2 can be designed to the scattering pitted skin, a plurality of hemispherical particles 23 namely evenly distribute on the sputter conical surface of described guiding cone, shown in Fig. 5 upper part, described hemispherical particle distributes by 10 orders.This hemispherical particle can be fixed on the guiding cone surface by welding process, and the radius of hemispherical particle is 2～3cm.Hemispherical particle on this sputter conical surface can be dispersed into water droplet with the cooling-water flowing that sprays on it, outwards splashes uniformly; And led on the internal surface of each crushing teeth 3 by the water droplet that splitter vane 22 radially will form scattering.
In the present embodiment, described scattering pitted skin can also be realized by following manner, a plurality of hemispherical pits 24 that namely evenly distribute on the sputter conical surface of described guiding cone, and shown in Fig. 5 lower part, described hemispherical pit distributes by 10 orders.This hemispherical pit can process by shot-blast process, and the radius of hemispherical pit is 2～3cm.
In the present embodiment, the working face of described crushing teeth is provided with a plurality of broken stakes, and the working face of described crushing teeth is provided with a plurality of water-guiding holes; On the surface of described broken stake, the boride ceramics protective layer is set.(Fig. 6 is 2 times of enlarged views of crushing teeth referring to Fig. 6, Fig. 7, Fig. 7 is the expansion schematic diagram of crushing teeth working face), because the broken stake 31 on crushing teeth working face 35 directly contacts with the slag of high-temperature, single-pass is crossed and is carried out cooling to crushing teeth internal surface sputter water coolant, its outside surface can only be by thermal conduction, cooling poor effect.In the present embodiment, for working face and the broken stake to crushing teeth more timely directly carried out cooling, be provided with a plurality of water-guiding holes 34 on the working face of crushing teeth, described water-guiding hole is arranged between two broken stakes 31, described water-guiding hole is to lead to the manhole of crushing teeth outside surface from the crushing teeth internal surface, and the diameter of water-guiding hole is 2～10mm.Granulating wheel under the action of the centrifugal, by controlling the diameter of water-guiding hole, makes the water coolant of crushing teeth internal surface flow to the crushing teeth outside surface in the mode that infiltrates in the process of high-speed rotation, and forming thickness at the crushing teeth outside surface is the moisture film of 0.1-0.5mm.The evaporation of moisture film can be taken away the heat of moisture film coverage rate, effectively reduces the working face of crushing teeth and the temperature of broken stake, has extended the work-ing life of crushing teeth, thereby has saved material, reduces production costs.
Claims (6)
1. granulating wheel that is used for treatment device for metallugical cinder, the center of described granulating wheel is provided with a tubular shaft, the two ends of described granulating wheel are provided with two annular endplates, be provided with a plurality of support disc between described annular endplate and described tubular shaft, it is characterized in that: a guiding cone is set in the middle part of described tubular shaft, described guiding cone comprises two sputter conical surfaces, and the described sputter conical surface is provided with a plurality of radially splitter vanes; Between described two annular endplates, a plurality of crushing teeths are housed, described crushing teeth is dismountable straight-tooth, and the upstream face of described crushing teeth is provided with a plurality of board slots in water; The working face of described crushing teeth is provided with a plurality of broken stakes, and the working face of described crushing teeth is provided with a plurality of water-guiding holes.
2. granulating wheel according to claim 1, is characterized in that: on the surface of described broken stake, the boride ceramics protective layer is set.
3. granulating wheel according to claim 2, it is characterized in that: described annular endplate is provided with a plurality of water vents.
4. granulating wheel that is used for treatment device for metallugical cinder, the center of described granulating wheel is provided with a tubular shaft, the two ends of described granulating wheel are provided with two annular endplates, be provided with a plurality of support disc between described annular endplate and described tubular shaft, it is characterized in that: a guiding cone is set in the middle part of described tubular shaft, described guiding cone comprises two sputter conical surfaces, and the described sputter conical surface is provided with a plurality of radially splitter vanes; Between described two annular endplates, a plurality of crushing teeths are housed, described crushing teeth is dismountable straight-tooth, and the upstream face of described crushing teeth is provided with a plurality of board slots in water; The sputter conical surface of described guiding cone is the scattering pitted skin; The working face of described crushing teeth is provided with a plurality of broken stakes, and the working face of described crushing teeth is provided with a plurality of water-guiding holes.
5. granulating wheel according to claim 4, is characterized in that: on the surface of described broken stake, the boride ceramics protective layer is set.
6. granulating wheel according to claim 5, it is characterized in that: described annular endplate is provided with a plurality of water vents.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010532690 CN102464457B (en) | 2010-11-05 | 2010-11-05 | Granulation wheel for metallurgy slag processing apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010532690 CN102464457B (en) | 2010-11-05 | 2010-11-05 | Granulation wheel for metallurgy slag processing apparatus |
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| CN102464457A CN102464457A (en) | 2012-05-23 |
| CN102464457B true CN102464457B (en) | 2013-05-22 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2448846Y (en) * | 2000-11-10 | 2001-09-19 | 张维田 | Metallurgical slag treatment apparatus |
| CN2725305Y (en) * | 2004-09-22 | 2005-09-14 | 中国冶金建设集团包头钢铁设计研究总院 | Mechanical granulating wheel |
| CN100556585C (en) * | 2004-11-25 | 2009-11-04 | 张维田 | A kind of non-ferrous slag superfine powder treatment process and system |
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