CN1718746A - Production technology of high quality steel slag breeze - Google Patents
Production technology of high quality steel slag breeze Download PDFInfo
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- CN1718746A CN1718746A CNA2005100190187A CN200510019018A CN1718746A CN 1718746 A CN1718746 A CN 1718746A CN A2005100190187 A CNA2005100190187 A CN A2005100190187A CN 200510019018 A CN200510019018 A CN 200510019018A CN 1718746 A CN1718746 A CN 1718746A
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Abstract
A technology for preparing the breeze from steel slag includes such steps as cooling, removing iron by electromagnetic sucking disc, breaking by alligator, removing iron by ferroelectric magnetic iron remover, breaking by impact crusher, removing iron by ferroelectric magnetic iron remover, pulverizing by post grinder, removing iron by ferroelectric magnetic iron remover, pulverizing by rod grinder, removing iron by ferroelectric magnetic iron remover, pulverizing by tube grinder, and removing iron by iron removing system. The product has low content of Fe and large specific surface area.
Description
Technical field
The invention belongs to building material technical field, be specifically related to a kind of production technique of slag breeze.
Background technology
Slag is a kind of metallurgical slag of enormous amount, China produces about more than 1,000 ten thousand tons of slag per year at present, and most of slag is not effectively utilized, and has taken a large amount of land resourcess in short supply on the one hand and has built the stockyard, simultaneously easily environment being caused secondary pollution, also is the waste to resource on the other hand.The C that contains some amount in the slag
2S, C
3Cement clinker mineral and some vitreums such as S have suitable hydration activity, have the potential that is used for preparing gelling material.Yet, have two reasons seriously to restrict applying of slag: one, contain relatively large metallic iron in the slag, cause the grindability energy extreme difference of slag, and to give full play to the hydration activity of each mineral facies in the slag, it must be ground into fine powder to obtain physically activated fully; Its two, contain materials such as relatively large f-CaO, MgO in the slag, when mixing the cementitious material system aquation of slag, easily cause deleterious differential expansion, destroy product properties.Adopt the slag breeze of traditional technology preparation to fail fully to overcome the above problems at present, the slag breeze activity of producing is low, quality fluctuation is big, iron level is high, grain composition is unreasonable.
Summary of the invention
Problem at above-mentioned slag breeze exists the object of the present invention is to provide a kind of production technique that improves the high quality steel slag breeze of slag breeze quality, metal Ferrum content in the slag breeze that this production technique obtains≤1%, specific surface area 〉=450m
2/ kg; Produce comprehensive power consumption≤45kwh/t, can realize large-scale industrial production.
Technical scheme of the present invention is: a kind of production technique of high quality steel slag breeze is characterized in that: the deironing first time is carried out by magneticchuck in the slag of coming out of the stove cooling back, and slag carries out the fragmentation first time by jaw crusher after the deironing first time; Slag after the fragmentation for the first time carries out the deironing second time by the first iron electromagnet tramp iron separator, and slag carries out the fragmentation second time by impact crusher after the deironing second time; Slag after the fragmentation for the second time carries out deironing for the third time by the second iron electromagnet tramp iron separator, and slag is undertaken broken for the third time after deironing for the third time by column mill; Slag after the fragmentation carries out the 4th deironing by the three-iron electric magnetic iron remover for the third time, and slag carries out the 4th fragmentation by rod mill after the 4th deironing; Slag after the 4th fragmentation carries out the 5th deironing by the 4th iron electromagnet tramp iron separator, and slag carries out grinding by the slag tuber grinder after the 5th deironing; Steel-making slag powder behind the grinding is carried out the 6th deironing by the deironing system and is got metal Ferrum content≤1%, specific surface area 〉=450m
2The slag breeze of/kg (product).
Described slag tuber grinder, it comprises rotary barrel 8, front-end bearing pedestal 7, rear bearing block 10, the front end of rotary barrel 8 (bistrique) is connected with front-end bearing pedestal 7 by bearing, and the tail end of rotary barrel 8 is connected with rear bearing block 10 by bearing, and rotary barrel 8 is provided with opening for feed 1, discharge port 6; Rotary barrel 8 internal fixing have 1-3 powder selection device.
Be provided with raising material unit 4 in little forging storehouse in the described rotary barrel 8 after last powder selection device.Inboard, discharge port 6 place in the described rotary barrel 8 is provided with finished product control device 5.
The deironing system comprises 1-2 settling pocket, 1 cover centrifugal classifier or cyclone type cyclone cluster or O-SEPA high-efficient powder concentrator, the steel-making slag powder that the slag tuber grinder is discharged enters settling pocket successively, centrifugal classifier or cyclone type cyclone cluster or O-SEPA high-efficient powder concentrator carry out deironing, get iron powder material and slag breeze.
The deironing system comprises 1 cover electromagnetism equipment for removing ferric ion and 1 cover centrifugal classifier or cyclone type cyclone cluster or O-SEPA high-efficient powder concentrator, the steel-making slag powder that the slag tuber grinder is discharged enters the electromagnetism equipment for removing ferric ion successively, centrifugal classifier or cyclone type cyclone cluster or O-SEPA high-efficient powder concentrator carry out deironing, get iron powder material and slag breeze.
The deironing system comprises 1 settling pocket and 1 cover electromagnetism equipment for removing ferric ion, and the steel-making slag powder that the slag tuber grinder is discharged enters settling pocket successively, and the electromagnetism equipment for removing ferric ion carries out deironing, gets iron powder material and slag breeze.
The deironing system comprises 1 settling pocket, 1 cover electromagnetism equipment for removing ferric ion and 1 cover centrifugal classifier or cyclone type cyclone cluster or O-SEPA high-efficient powder concentrator, the steel-making slag powder that the slag tuber grinder is discharged enters 1 settling pocket successively, 1 cover electromagnetism equipment for removing ferric ion, 1 cover centrifugal classifier or cyclone type cyclone cluster or O-SEPA high-efficient powder concentrator carry out deironing, get iron powder material and slag breeze.
Its know-why: this kind slag breeze is taked the processing method of 4 road fragmentations, 6 road deironing, 1 road grinding when producing, before primary crushing deironing once, each broken back deironing once, the breeze deironing behind the grinding is once.Because the removal of iron strengthens the grindability of slag greatly, the grinding energy consumption significantly reduces simultaneously; In addition, the existence of metallic iron is one of factor of harm slag breeze quality, is removed for improving the slag breeze quality significant.The present invention can grind into specific surface area 〉=450m with slag
2Little breeze that/kg is above makes slag breeze produce a large amount of new sections, makes its lattice surface produce abnormalization simultaneously, thereby its hydration activity is improved greatly; And the grinding one that the slag tuber grinder carries selects the integrated function of powder to make the slag of producing have rational grating, can improve serviceability and strength property during in order to concrete batching.Repeatedly broken and grinding process makes the slag breeze homogenizing effectively, and wherein each kind of active mineral reaches objectionable impuritiess such as f-CaO, MgO mutually and be evenly distributed in the product, and the quality product fluctuation is obviously reduced.
Compare with present prior art, characteristics of the present invention mainly are: slag breeze has less energy-consumption, lower production cost, high reactivity, high quality stability, low iron content feature; Can realize large-scale industrial production.
The present invention has following feature:
1, metal Ferrum content is low in the slag breeze, and≤1%;
2, slag breeze specific surface area height, 〉=450m
2/ kg;
3, the comprehensive power consumption of the production of slag breeze is low ,≤45kwh/t;
4, slag breeze hydration activity height, the steel slag content concrete 28d intensity index and the straight cement concrete of benchmark below 20% is suitable;
5, the slag breeze uniformity is good, and quality fluctuation is little.
Description of drawings
Fig. 1 is a process flow sheet of the present invention
Fig. 2 is the structural representation of slag tuber grinder of the present invention
Fig. 3 is the structural representation of the branch hopper 11 of slag tuber grinder of the present invention
Fig. 4 is the sectional view of Fig. 3 along the B-B line
Fig. 5 is the structural representation of the trommel screen 19 of slag tuber grinder of the present invention
Fig. 6 is the vertical view of Fig. 5
Fig. 7 is the structural representation of the air-distributing device of slag tuber grinder of the present invention
Fig. 8 is that the part of the powder selection device of slag tuber grinder of the present invention is cutd open structural representation
Fig. 9 be slag tuber grinder of the present invention powder selection device remove structural representation behind discharging grate plate 22, the air-distributing device
Figure 10 is the right view of the powder selection device of slag tuber grinder of the present invention
Figure 11 be slag tuber grinder of the present invention powder selection device remove structural representation behind the charging grate plate 26
Figure 12 is the structural representation of the raising material unit of slag tuber grinder of the present invention
Figure 13 is the left view of Figure 12
Figure 14 is the structural representation of the finished product control device of slag tuber grinder of the present invention
Figure 15 is the structural representation of mill tail discharging grate plate of the finished product control device of slag tuber grinder of the present invention
Figure 16 is the deironing system architecture synoptic diagram of the embodiment of the invention 1
Figure 17 is the deironing system architecture synoptic diagram of the embodiment of the invention 2
Figure 18 is the deironing system architecture synoptic diagram of the embodiment of the invention 3
Figure 19 is the deironing system architecture synoptic diagram of the embodiment of the invention 4
Among the figure: 1-opening for feed, 2-first powder selection device, 3-second powder selection device, 4-raising material unit, 5-finished product control device, 6-discharge port, 7-front-end bearing pedestal, 8-rotary barrel, the 9-material, the 10-rear bearing block, 11-divides hopper, the 12-material outlet that advances, the 13-material that advances enters the hole, the 14-material bin that advances, and 15-returns material bin, and 16-returns material and enters the hole, 17-first ventilation hole, 18-returns material outlet, the 19-trommel screen, the 20-sieve aperture, 21-eddy current whirlwind lifting bar, 22-discharging grate plate, the 23-discharging is combed and is stitched, the 24-bolt, and 25-takes turns band, 26-charging grate plate, 27-lifting hole, 28-material delivering plate, the 29-base, 30-fixed orifices, 31-backward channel, 32-second ventilation hole, 33-feed back vertebra bucket, 34-mill tail sheet plate, 35-mill tail discharging grate plate, 36-screw rod, 37-finished product passage, 38-sieve plate frame, 39-air distribution plate, 40-circular hole, the 41-bolt hole, 42-the 3rd ventilation hole, 43-the 4th ventilation hole, 44-cavity groove, the 45-finished product seam of combing, the 46-seam of combing.
Embodiment
Embodiment 1: starting material: the slag that Wuhan Iron and Steel Company produces.
As shown in Figure 1, a kind of production technique of high quality steel slag breeze, its step is as follows: the deironing first time is carried out by magneticchuck in the slag of coming out of the stove cooling back, and slag carries out the fragmentation first time by jaw crusher after the deironing first time; Slag after the fragmentation for the first time carries out the deironing second time by the first iron electromagnet tramp iron separator, and slag carries out the fragmentation second time by impact crusher after the deironing second time; Slag after the fragmentation for the second time carries out deironing for the third time by the second iron electromagnet tramp iron separator, and slag is undertaken broken for the third time after deironing for the third time by column mill; Slag after the fragmentation carries out the 4th deironing by the three-iron electric magnetic iron remover for the third time, and slag carries out the 4th fragmentation by rod mill after the 4th deironing; Slag after the 4th fragmentation carries out the 5th deironing by the 4th iron electromagnet tramp iron separator, and slag carries out grinding by the slag tuber grinder after the 5th deironing; Steel-making slag powder behind the grinding is carried out the 6th deironing by the deironing system and is got metal Ferrum content≤1%, specific surface area 〉=450m
2The slag breeze of/kg (product).
Shown in Fig. 1-15, the slag tuber grinder, it comprises rotary barrel 8, front-end bearing pedestal 7, rear bearing block 10, the front end of rotary barrel 8 (bistrique) is connected with front-end bearing pedestal 7 by bearing, the tail end of rotary barrel 8 is connected with rear bearing block 10 by bearing, and rotary barrel 8 is provided with opening for feed 1, discharge port 6; Rotary barrel 8 internal fixing have 2 powder selection devices,
Described powder selection device comprises that branch hopper 11, trommel screen 19, wheel are with 25, charging grate plate 26, air-distributing device, discharging grate plate 22, divide hopper 11 middle parts to be provided with first ventilation hole 17, divide and interlacedly in the hopper 11 to be provided with the material bin 14 that advances, to return material bin 15, the outer side wall at material bin 14 places that advance of branch hopper 11 is provided with the material that advances and enters hole 13, divide the back plate at material bin 14 places that advance of hopper 11 to be provided with the material outlet 12 that advances, the material that advances enters hole 13, the material outlet 12 that advances communicates with the material bin 14 that advances respectively; Divide the outer side wall that returns material bin 15 places of hopper 11 to be provided with to return material and enter hole 16, divide the header board that returns material bin 15 places of hopper 11 to be provided with and return material outlet 18, return material enter hole 16, return material outlet 18 respectively with return material bin 15 and communicate; Trommel screen 19 embayment knife-edges, in the trommel screen 19 is cavity, the tulwar point of trommel screen 19 is a closed, it at the bottom of the tulwar of trommel screen 19 opening, big or small corresponding on the outer side wall at the size at the bottom of the tulwar of trommel screen 19 and material bin 14 places that advance that divide hopper 11 also is mutually permanently connected, the material bin 14 that advances enters hole 13 with the cavity of trommel screen 19 by the material that advances and is communicated with, and wall is provided with sieve aperture 20 around the trommel screen 19, and sieve aperture 20 communicates with the cavity of trommel screen 19; Wheel is fixedlyed connected with the tulwar point of trommel screen 19 with 25 inboard, takes turns correspondingly with the internal diameter of rotary barrel 8 with 25 external diameter, takes turns and to be with 25 to fixedly connected with rotary barrel 8; Air-distributing device is positioned at the inboard of discharging grate plate 22, air-distributing device mainly is made of air distribution plate 39, eddy current whirlwind lifting bar 21, eddy current whirlwind lifting bar 21 is that arc is bucket-shaped, air distribution plate 39 is fan-shaped, be evenly distributed with circular hole 40 on the air distribution plate 39, eddy current whirlwind lifting bar 21 is welded on the air distribution plate 39, and air distribution plate 39 is provided with bolt hole 41; Discharging grate plate 22 is positioned at a side of the material outlet 12 that advances, charging grate plate 26 is positioned at a side of returning material outlet 18, have screw on discharging grate plate 22, the charging grate plate 26, it is fixedly connected that discharging grate plate 22, air distribution plate 39, charging grate plate 26 pass screw on the discharging grate plate 22, the bolt hole 41 on the air distribution plate 39, screw on the charging grate plate 26 by bolt 24, charging grate plate 26 is provided with charging comb seam, discharging grate plate 22 is provided with discharging comb seam 23, and charging grate plate 26 is towards the front end of rotary barrel 8.
The thickness of the air distribution plate 39 of described air-distributing device is 4mm, the area of circular hole 40 is the 20%-35% of the area of air distribution plate 39, the diameter in the hole on the air distribution plate in rotary barrel 8 between first storehouse and second storehouse is 4-8mm, and the diameter in hole is 1.0-3.5mm on the air distribution plate between second storehouse and the 3rd storehouse; The height of eddy current whirlwind lifting bar 21 is 10-15mm, and the thickness of eddy current whirlwind lifting bar 21 is 3-4mm.
Described powder selection device is 2, and first powder selection device 2 is positioned at front end (bistrique) the 2000-3000mm place of rotary barrel 8, and charging grate plate 26 is a 10-20 spare, and the seam of charging comb seam is wide to be 14-18mm; Trommel screen 19 is a 8-10 spare, the Kong Kuanwei 5-9mm of the sieve aperture 20 on the trommel screen 19; Dividing hopper 11 is 1, and dividing hopper 11 diameters is 800-1100mm; Discharging grate plate 22 is a 10-20 spare, and the seam of the discharging comb seam 23 on the discharging grate plate 22 is wide to be 6-10mm; Eddy current whirlwind lifting bar 21 is a 8-11 spare;
Second powder selection device 3 is positioned at front end (bistrique) the 3500-5500mm place of rotary barrel 8, and charging grate plate 26 is a 20-24 spare, and the seam of charging comb seam is wide to be 7-10mm; Trommel screen 19 is a 10-15 spare, the Kong Kuanwei 1.5-3.5mm of the sieve aperture 20 on the trommel screen 19; Dividing hopper 11 is 1, and dividing hopper 11 diameters is 800-1100mm; Discharging grate plate 22 is a 20-24 spare, and the seam of the discharging comb seam 23 on the discharging grate plate 22 is wide to be 1.5-6.0mm; Eddy current whirlwind lifting bar is a 8-11 spare.
Be provided with raising material unit 4 in little forging storehouse in the described rotary barrel 8 after last powder selection device, raising material unit 4 mainly is made of base 29, material delivering plate 28 two portions, for crooked arcual door shape cast member is axially arranged along rotary barrel 8, the crooked radian r of material delivering plate 28 is the 30-45 degree, material delivering plate 28 is provided with lifting hole 27, base 29 is provided with fixed orifices 30, and base 29 passes fixed orifices 30 by screw fixedlys connected with rotary barrel 8; Every circles are installed four raising material units 4 in the rotary barrel 8, and adjacent two arcs are towards on the contrary, in rotary barrel 8 axially in the shape of a spiral line arrange.
Inboard, discharge port 6 place in the described rotary barrel 8 is provided with finished product control device 5, finished product control device 5 is mainly by feed back vertebra bucket 33, mill tail sheet plate 34, mill tail discharging grate plate 35, sieve plate frame 38 is formed, the cross section of feed back vertebra bucket 33 be two relative humanoid, two relative humanoid centres are the 3rd ventilation hole 42, the external diameter of sieve plate frame 38 is corresponding with the internal diameter of rotary barrel 8, sieve plate frame 38 is fixedlyed connected with rotary barrel 8, sieve plate frame 38 is provided with cavity groove 44, feed back vertebra bucket 33, mill tail sheet plate 34 is positioned at cavity groove 44, feed back vertebra bucket 33 is positioned at the middle part of mill tail sheet plate 34 and is mutually permanently connected, and mill tail sheet plate 34 is provided with finished product comb seam 45; Mill tail discharging grate plate 35 is provided with the seam 46 of combing, and mill tail discharging grate plate 35 is positioned at mill tail sheet plate 34 outsides, and mill tail discharging grate plate 35 is fixedlyed connected with sieve plate frame 38 by screw rod 36; Be provided with backward channel 31 between feed back vertebra bucket 33 and the mill tail discharging grate plate 35, feed back vertebra bucket 33 is provided with finished product passage 37 with sieve plate frame 38.
The feed back vertebra bucket 33 of described finished product control device 5 is 1, and mill tail sheet plate 34 is a 16-36 spare, and sieve plate frame 38 is a 16-36 spare, and finished product comb seam 45 seams on the mill tail sheet plate 34 are wide to be 2.0mm; Mill tail discharging grate plate 35 is a 16-36 spare, and the seam of the comb seam 46 on the mill tail discharging grate plate 35 is wide to be 6.0mm; The middle part of 16-36 spare sieve plate frame 38 surrounds the 4th ventilation hole 43, and the middle part of 16-36 spare mill tail discharging grate plate 35 surrounds second ventilation hole, 32, the second ventilation holes 32, the 3rd ventilation hole 42, the 4th ventilation hole 43 and communicates.
The structure of slag tuber grinder improves the mill efficiency and the quality of grinding machine, save energy.The present invention compares the output raising more than 20% with the stream grinding machine of opening of same size, and power consumption reduces more than 30%.
As shown in figure 16, the deironing system comprises 2 settling pockets, 1 cover centrifugal classifier, and the steel-making slag powder that the slag tuber grinder is discharged enters first settling pocket successively, second settling pocket, and centrifugal classifier carries out deironing, gets iron powder material and slag breeze.
Product performance:
Specific surface area: 460m
2/ kg
Metal Ferrum content: 0.75%
Production comprehensive energy consumption: 42kwh/t
Use properties:
Preparation C30, C60 concrete,
Table 1 is mixed the proportioning of steel slag concrete
| Strength grade | Group | Cement (Kg/m 3) | Slag (Kg/ m 3) | W/C | Sand coarse aggregate ratio (%) | FDN diminishing (gelling material %) |
| C30 | W30 | 390 | 0 | 0.41 | 40 | 0.85 |
| W31 | 312 | 78 | 0.41 | 40 | 0.85 | |
| W32 | 312 | 78 | 0.41 | 40 | 0.85 | |
| C60 | W60 | 560 | 0 | 0.31 | 39 | 1.5 |
| W61 | 504 | 56 | 0.31 | 39 | 1.5 | |
| W62 | 504 | 56 | 0.31 | 39 | 1.5 |
Table 2 is mixed the serviceability and the strength property of steel slag concrete
| Sample | The slump (cm) | Strength property (MPa) | ||||
| 0h | 1h | 2h | 7d | 28d | 90d | |
| W30 | 20.5 | 18.0 | 14.5 | 32.3 | 44.0 | 49.3 |
| W31 | 21.5 | 19.0 | 15.0 | 30.0 | 41.6 | 49.5 |
| W32 | 20.0 | 18.0 | 15.0 | 27.9 | 38.3 | 44.2 |
| W60 | 20.5 | 16.5 | 11.5 | 59.6 | 73 5 | 71.8 |
| W61 | 21.5 | 17.5 | 12.0 | 58.2 | 70.3 | 72.1 |
| W62 | 19.0 | 17.0 | 12.0 | 55.4 | 68.5 | 68.8 |
Wherein:
Cement: magnificent new citadel board 42.5
#Ordinary Portland cement
Sand: Hubei Ba He medium sand, fineness modulus 2.6
Stone: Yangxin, Hubei limestone gravel, 5 ~ 20mm continuous grading
High efficiency water reducing agent: the great source of the Wuhan Iron and Steel Plant FDN of admixture factory high efficiency water reducing agent
Slag breeze: the breeze that is used to prepare W31, W61 sample is a high quality steel slag breeze of the present invention, and the breeze that is used to prepare W32, W62 sample is the slag breeze that general technology is produced, available from Wuhan Iron and Steel Plant company.
Embodiment 2: as shown in Figure 1, substantially the same manner as Example 1, difference only is: as shown in figure 17, the deironing system comprises 1 cover electromagnetism equipment for removing ferric ion and 1 cover O-SEPA high-efficient powder concentrator, the steel-making slag powder that the slag tuber grinder is discharged enters 1 cover electromagnetism equipment for removing ferric ion successively, 1 cover O-SEPA high-efficient powder concentrator carries out deironing, gets iron powder material and slag breeze.
Embodiment 3: substantially the same manner as Example 1, difference only is: as shown in figure 18, the deironing system comprises 1 settling pocket and 1 cover electromagnetism equipment for removing ferric ion, and the steel-making slag powder that the slag tuber grinder is discharged enters settling pocket successively, the electromagnetism equipment for removing ferric ion carries out deironing, gets iron powder material and slag breeze.
Embodiment 4: substantially the same manner as Example 1, difference only is: as shown in figure 19, the deironing system comprises 1 settling pocket, 1 cover electromagnetism equipment for removing ferric ion and 1 cover centrifugal classifier, the steel-making slag powder that the slag tuber grinder is discharged enters 1 settling pocket successively, 1 cover electromagnetism equipment for removing ferric ion, 1 cover centrifugal classifier carries out deironing, gets iron powder material and slag breeze.
Claims (10)
1. the production technique of a high quality steel slag breeze is characterized in that: deironing is first time carried out by magneticchuck in the slag of coming out of the stove cooling back, and slag carries out the fragmentation first time by jaw crusher after the deironing first time; Slag after the fragmentation for the first time carries out the deironing second time by the first iron electromagnet tramp iron separator, and slag carries out the fragmentation second time by impact crusher after the deironing second time; Slag after the fragmentation for the second time carries out deironing for the third time by the second iron electromagnet tramp iron separator, and slag is undertaken broken for the third time after deironing for the third time by column mill; Slag after the fragmentation carries out the 4th deironing by the three-iron electric magnetic iron remover for the third time, and slag carries out the 4th fragmentation by rod mill after the 4th deironing; Slag after the 4th fragmentation carries out the 5th deironing by the 4th iron electromagnet tramp iron separator, and slag carries out grinding by the slag tuber grinder after the 5th deironing; Steel-making slag powder behind the grinding is carried out the 6th deironing by the deironing system and is got metal Ferrum content≤1%, specific surface area 〉=450m
2The slag breeze of/kg.
2. the production technique of a kind of high quality steel slag breeze according to claim 2, it is characterized in that: the slag tuber grinder, it comprises rotary barrel (8), front-end bearing pedestal (7), rear bearing block (10), the front end of rotary barrel (8) is connected with front-end bearing pedestal (7) by bearing, the tail end of rotary barrel (8) is connected with rear bearing block (10) by bearing, and rotary barrel (8) is provided with opening for feed (1), discharge port (6); It is characterized in that: rotary barrel (8) internal fixing has 1-3 powder selection device,
Described powder selection device comprises branch hopper (11), trommel screen (19), wheel band (25), charging grate plate (26), air-distributing device, discharging grate plate (22), divide hopper (11) middle part to be provided with first ventilation hole (17), divide the interlaced material bin that advances (14) that is provided with in the hopper (11), return material bin (15), the outer side wall that the material bin that advances (14) of branch hopper (11) is located is provided with the material that advances and enters hole (13), the back plate that the material bin that advances (14) of branch hopper (11) is located is provided with the material outlet that advances (12), and the material that advances enters hole (13), the material outlet (12) that advances communicates with the material bin that advances (14) respectively; Divide the outer side wall that material bin (15) locates of returning of hopper (11) to be provided with and to return material and enter hole (16), divide the header board that material bin (15) locates of returning of hopper (11) to be provided with and to return material outlet (18), return material enter hole (16), return material outlet (18) respectively with return material bin (15) and communicate; Trommel screen (19) embayment knife-edge, in the trommel screen (19) is cavity, the tulwar point of trommel screen (19) is a closed, be opening at the bottom of the tulwar of trommel screen (19), big or small corresponding on size at the bottom of the tulwar of trommel screen (19) and the outer side wall that the material bin that advances (14) that divides hopper (11) is located also is mutually permanently connected, the material bin (14) that advances enters hole (13) with the cavity of trommel screen (19) by the material that advances and is communicated with, wall is provided with sieve aperture (20) around the trommel screen (19), and sieve aperture (20) communicates with the cavity of trommel screen (19); Fixedly connected with the tulwar point of trommel screen (19) in the inboard of wheel band (25), the external diameter of wheel band (25) is corresponding with the internal diameter of rotary barrel (8), and wheel band (25) is fixedlyed connected with rotary barrel (8); Air-distributing device is positioned at the inboard of discharging grate plate (22), air-distributing device mainly is made of air distribution plate (39), eddy current whirlwind lifting bar (21), eddy current whirlwind lifting bar (21) is that arc is bucket-shaped, air distribution plate (39) is fan-shaped, be evenly distributed with circular hole (40) on the air distribution plate (39), eddy current whirlwind lifting bar (21) is welded on the air distribution plate (39), and air distribution plate (39) is provided with bolt hole (41); Discharging grate plate (22) is positioned at a side of the material outlet that advances (12), charging grate plate (26) is positioned at a side of returning material outlet (18), discharging grate plate (22), the charging grate plate has screw on (26), discharging grate plate (22), air distribution plate (39), charging grate plate (26) passes screw on the discharging grate plate (22) by bolt (24), bolt hole (41) on the air distribution plate (39), screw on the charging grate plate (26) is fixedly connected, charging grate plate (26) is provided with charging comb seam, discharging grate plate (22) is provided with discharging comb seam (23), and charging grate plate (26) is towards the front end of rotary barrel (8).
3. the production technique of a kind of high quality steel slag breeze according to claim 2, it is characterized in that: the thickness of the air distribution plate of described air-distributing device (39) is (4) mm, the area of circular hole (40) is the 20%-35% of the area of air distribution plate (39), the diameter that is positioned at the hole on the air distribution plate between rotary barrel (8) first storehouses and second storehouse is 4-8mm, and the diameter in hole is 1.0-3.5mm on the air distribution plate between second storehouse and the 3rd storehouse; The height of eddy current whirlwind lifting bar (21) is 10-15mm, and the thickness of eddy current whirlwind lifting bar (21) is 3-4mm.
4. the production technique of a kind of high quality steel slag breeze according to claim 2, it is characterized in that: described powder selection device is 2, first powder selection device (2) is positioned at the front end 2000-3000mm place of rotary barrel (8), charging grate plate (26) is a 10-20 spare, and the seam of charging comb seam is wide to be 14-18mm; Trommel screen (19) is a 8-10 spare, the Kong Kuanwei 5-9mm of the sieve aperture (20) on the trommel screen (19); Dividing hopper (11) is 1, and dividing hopper (11) diameter is 800-1100mm; Discharging grate plate (22) is a 10-20 spare, and the seam of the discharging comb seam (23) on the discharging grate plate (22) is wide to be 6-10mm; Eddy current whirlwind lifting bar (21) is a 8-11 spare;
Second powder selection device (3) is positioned at the front end 3500-5500mm place of rotary barrel (8), and charging grate plate (26) is a 20-24 spare, and the seam of charging comb seam is wide to be 7-10mm; Trommel screen (19) is a 10-15 spare, the Kong Kuanwei 1.5-3.5mm of the sieve aperture (20) on the trommel screen (19); Dividing hopper (11) is 1, and dividing hopper (11) diameter is 800-1100mm; Discharging grate plate (22) is a 20-24 spare, and the seam of the discharging comb seam (23) on the discharging grate plate (22) is wide to be 1.5-6.0mm; Eddy current whirlwind lifting bar is a 8-11 spare.
5. the production technique of a kind of high quality steel slag breeze according to claim 2, it is characterized in that: be provided with raising material unit (4) in the little forging storehouse in the described rotary barrel (8) after last powder selection device, raising material unit (4) is mainly by base (29), material delivering plate (28) two portions constitute, for crooked arcual door shape cast member is axially arranged along rotary barrel (8), the crooked radian (r) of material delivering plate (28) is the 30-45 degree, material delivering plate (28) is provided with lifting hole (27), base (29) is provided with fixed orifices (30), and base (29) passes fixed orifices (30) by screw fixedlys connected with rotary barrel (8); Every circle is installed four raising material units (4) in the rotary barrel (8), and adjacent two arcs are towards on the contrary, in rotary barrel (8) axially in the shape of a spiral line arrange.
6. the production technique of a kind of high quality steel slag breeze according to claim 2, it is characterized in that: the discharge port (6) in the described rotary barrel (8) is located the inboard and is provided with finished product control device (5), finished product control device (5) is mainly by feed back vertebra bucket (33), mill tail sheet plate (34), mill tail discharging grate plate (35), sieve plate frame (38) is formed, the cross section of feed back vertebra bucket (33) be two relative humanoid, two relative humanoid centres are the 3rd ventilation hole (42), the external diameter of sieve plate frame (38) is corresponding with the internal diameter of rotary barrel (8), sieve plate frame (38) is fixedlyed connected with rotary barrel (8), sieve plate frame (38) is provided with cavity groove (44), feed back vertebra bucket (33), mill tail sheet plate (34) is positioned at cavity groove (44), feed back vertebra bucket (33) is positioned at the middle part of mill tail sheet plate (34) and is mutually permanently connected, and mill tail sheet plate (34) is provided with finished product comb seam (45); Mill tail discharging grate plate (35) is provided with the seam (46) of combing, and mill tail discharging grate plate (35) is positioned at mill tail sheet plate (34) outside, and mill tail discharging grate plate (35) is fixedlyed connected with sieve plate frame (38) by screw rod (36); Be provided with backward channel (31) between feed back vertebra bucket (33) and the mill tail discharging grate plate (35), feed back vertebra bucket (33) is provided with finished product passage (37) with sieve plate frame (38).
7. the production technique of a kind of high quality steel slag breeze according to claim 1, it is characterized in that: the deironing system comprises 1-2 settling pocket, 1 cover centrifugal classifier or cyclone type cyclone cluster or O-SEPA high-efficient powder concentrator, the steel-making slag powder that the slag tuber grinder is discharged enters settling pocket successively, centrifugal classifier or cyclone type cyclone cluster or O-SEPA high-efficient powder concentrator carry out deironing, get iron powder material and slag breeze.
8. the production technique of a kind of high quality steel slag breeze according to claim 1, it is characterized in that: the deironing system comprises 1 cover electromagnetism equipment for removing ferric ion and 1 cover centrifugal classifier or cyclone type cyclone cluster or O-SEPA high-efficient powder concentrator, the steel-making slag powder that the slag tuber grinder is discharged enters the electromagnetism equipment for removing ferric ion successively, centrifugal classifier or cyclone type cyclone cluster or O-SEPA high-efficient powder concentrator carry out deironing, get iron powder material and slag breeze.
9. the production technique of a kind of high quality steel slag breeze according to claim 1, it is characterized in that: the deironing system comprises 1 settling pocket and 1 cover electromagnetism equipment for removing ferric ion, the steel-making slag powder that the slag tuber grinder is discharged enters settling pocket successively, and the electromagnetism equipment for removing ferric ion carries out deironing, gets iron powder material and slag breeze.
10. the production technique of a kind of high quality steel slag breeze according to claim 1, it is characterized in that: the deironing system comprises 1 settling pocket, 1 cover electromagnetism equipment for removing ferric ion and 1 cover centrifugal classifier or cyclone type cyclone cluster or O-SEPA high-efficient powder concentrator, the steel-making slag powder that the slag tuber grinder is discharged enters 1 settling pocket successively, 1 cover electromagnetism equipment for removing ferric ion, 1 cover centrifugal classifier or cyclone type cyclone cluster or O-SEPA high-efficient powder concentrator carry out deironing, get iron powder material and slag breeze.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN100427223C (en) * | 2006-05-23 | 2008-10-22 | 李志辉 | First separation process for lean magnetic iron ore |
| WO2011147271A1 (en) * | 2010-05-26 | 2011-12-01 | 上海海笠工贸有限公司 | Process for preparing ultrafine steel slag micropowder |
| CN102285801A (en) * | 2011-06-03 | 2011-12-21 | 山东省安华瓷业有限公司 | Pre-grinding processing process of ceramic wine bottle |
| CN104492581A (en) * | 2014-06-13 | 2015-04-08 | 江苏融达新材料股份有限公司 | Method for processing multi-cooling mode cooled steel slag to recover metal |
| CN106467367A (en) * | 2016-08-29 | 2017-03-01 | 湘潭玉峰建材有限公司 | A kind of Technology producing slag micro powder |
| CN106552708A (en) * | 2016-11-16 | 2017-04-05 | 南京天合嘉能再生资源有限公司 | A kind of slag breeze production technology |
| CN110683774A (en) * | 2019-10-23 | 2020-01-14 | 迁安威盛固废环保实业有限公司 | Cementing material taking slag-steel slag-gypsum as raw material and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1036565A (en) * | 1973-09-10 | 1978-08-15 | F.L. Smidth And Co. Of Canada | Tube mill |
| CN1039792C (en) * | 1993-05-27 | 1998-09-16 | 国家建筑材料工业局合肥水泥研究设计院 | Tube mill with combined screen unit therein |
| CN2326334Y (en) * | 1998-03-11 | 1999-06-30 | 张洪彬 | Arc double-grate hole-screening type partition device for barn |
| JP2001029821A (en) * | 1999-07-21 | 2001-02-06 | Ishikawajima Harima Heavy Ind Co Ltd | Tube mill and its operation |
| CN2399096Y (en) * | 1999-12-02 | 2000-10-04 | 河南省新乡市长城矿山机械厂 | Super-fine grinder |
| CN1120135C (en) * | 2000-09-20 | 2003-09-03 | 津江超细粉体(武汉)有限公司 | Combined system for processing superfine steel slag powder |
| CN1233849C (en) * | 2004-04-12 | 2005-12-28 | 上海宝钢冶金建设公司 | Technique for treating fecal steel and fecal iron in high purity in use for metallurgy |
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- 2005-06-30 CN CNB2005100190187A patent/CN100392109C/en not_active Expired - Fee Related
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| CN100427223C (en) * | 2006-05-23 | 2008-10-22 | 李志辉 | First separation process for lean magnetic iron ore |
| WO2011147271A1 (en) * | 2010-05-26 | 2011-12-01 | 上海海笠工贸有限公司 | Process for preparing ultrafine steel slag micropowder |
| CN102285801A (en) * | 2011-06-03 | 2011-12-21 | 山东省安华瓷业有限公司 | Pre-grinding processing process of ceramic wine bottle |
| CN104492581A (en) * | 2014-06-13 | 2015-04-08 | 江苏融达新材料股份有限公司 | Method for processing multi-cooling mode cooled steel slag to recover metal |
| CN104492581B (en) * | 2014-06-13 | 2016-08-24 | 江苏融达新材料股份有限公司 | The slag processing metal recovery production method that the cooling of the multiple type of cooling obtains |
| CN106467367A (en) * | 2016-08-29 | 2017-03-01 | 湘潭玉峰建材有限公司 | A kind of Technology producing slag micro powder |
| CN106552708A (en) * | 2016-11-16 | 2017-04-05 | 南京天合嘉能再生资源有限公司 | A kind of slag breeze production technology |
| CN110683774A (en) * | 2019-10-23 | 2020-01-14 | 迁安威盛固废环保实业有限公司 | Cementing material taking slag-steel slag-gypsum as raw material and preparation method thereof |
| CN110683774B (en) * | 2019-10-23 | 2021-09-10 | 迁安威盛固废环保实业有限公司 | Cementing material taking slag-steel slag-gypsum as raw material and preparation method thereof |
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