CN207576876U - A kind of finished pellet mine screen subsystem - Google Patents
A kind of finished pellet mine screen subsystem Download PDFInfo
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- CN207576876U CN207576876U CN201721260063.6U CN201721260063U CN207576876U CN 207576876 U CN207576876 U CN 207576876U CN 201721260063 U CN201721260063 U CN 201721260063U CN 207576876 U CN207576876 U CN 207576876U
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Abstract
The utility model is related to metallurgical technology pelletizing fields, particularly relate to a kind of finished pellet mine screen subsystem, the screening system includes belt-cooling machine, vibrating screen, vibrating motor, shaft furnace finished belt and sieve powder and returns mine storehouse, the top of vibrating screen be feed end, vibrating screen lower part be discharge end, belt-cooling machine is matched with the feed end of vibrating screen, the discharge end of vibrating screen is matched with shaft furnace finished belt, the lower section of vibrating screen is equipped with returns mine storehouse for the sieve powder of receiving screen powder, and vibrating motor provides exciting source for vibrating screen；The sieve pore of vibrating screen uses slot hole, the direction of motion of the direction of slot hole along pelletizing material on compass screen surface, and sieve pore is that bottom surface is rectangular terrace with edge, and sieve pore is using T shapes arrangement mode arrangement.The utility model is shaped to terrace with edge and T shapes arrangement mode by sieve pore and can improve the efficiency of screening and reduce and sieve happening, while solve the technical issues of pelletizing mine screen powder content is high for powder blocking.
Description
Technical field
The utility model is related to metallurgical technology pelletizing fields, particularly relate to a kind of finished pellet mine screen subsystem.
Background technology
At present, domestic shaft furnace only has green-ball sieving technology, all using roller type sieving machine, does not have finished ball screening plant.Forever
Logical existing three 10m of cast tube Co., Ltd2Shaft furnace, wherein 1#、2#Shaft furnace for shaft furnace move ground overhaul after respectively in September, 1998,
In January, 2001 puts into operation, and 3#Shaft furnace puts into operation in September, 2005.Three shaft furnaces share a raw material system, pelletizing, green-ball screening and
The cooling of finished ball nodulizing is respectively independent.Lead to the large and small ball screening of shaft furnace green-ball forever and use 103 × 1300 roller type sieving machines of Φ.Not yet
There is finished pellet mine screen subset.It is more than 5% to find shaft furnace finished ball nodulizing powder containing quantity in production, production requirement finished ball
Powder containing quantity≤3% of nodulizing, the regrading of pellet cause the repetition of process and spare part loss, have bad luck costly, scene dirt
Dye is serious.
Utility model content
The utility model provides a kind of finished pellet mine screen subsystem, and sieve pore is shaped to terrace with edge and T shapes row
Row mode can improve the efficiency of screening and reduce happening, while it is high to solve pelletizing mine screen powder content for sieve powder blocking
Technical problem.
A kind of finished pellet mine screen subsystem, which is characterized in that the screening system includes belt-cooling machine, vibrating screen, vibration electricity
Machine, shaft furnace finished belt and sieve powder are returned mine storehouse, the top of the vibrating screen be feed end, vibrating screen lower part be discharge end, institute
The feed end that belt-cooling machine is stated with the vibrating screen matches, and the discharge end of the vibrating screen matches with the shaft furnace finished belt
It closes, the sieve powder that the lower section of the vibrating screen is equipped with for receiving screen powder is returned mine storehouse, and the vibrating motor is provided for the vibrating screen
Exciting source；The sieve pore of the vibrating screen uses slot hole, the movement of the direction of the slot hole along the pelletizing material on compass screen surface
Direction, the sieve pore are that bottom surface is rectangular terrace with edge, and the sieve pore is arranged using T shapes arrangement mode.
Further, the discharge end of the sieve plate of the vibrating screen is equipped with the ladder chute coordinated with the shaft furnace finished belt.
Further, the position for falling shots of the sieve plate of the vibrating screen, which is equipped with, falls material buffer unit.
Further, the material buffer unit that falls is the groove being located on the sieve plate.
Further, the bottom of the sieve plate of the vibrating screen is equipped with supporting leg buffer unit.
Further, the supporting leg buffer unit includes side buffer unit and bottom buffer unit, the side buffering dress
It is set to and is connected between the sieve plate both sides and side support by edge reduction spring respectively；The bottom buffer unit is divides
It is not connected between the sieve plate two bottom sides and bottom bracket by bottom compressed spring.
Further, the sieve plate of the vibrating screen and horizontal angle are 17 degree.
Further, the vibrating screen is wear-resistant alloy cast steel sieve plate.
It is had the beneficial effect that caused by the utility model：
1st, the utility model is dropped by the sieve pore that the improved shape of sieve pore is elongated terrace with edge, and using T shapes arrangement mode arrangement
The low powder containing quantity of pellet, powder containing quantity drop to≤3% by original more than 5%, return mine under blast furnace by 11% be down to 6% with
Under, provide good raw material basis for follow-up blast fumance.After entering stove pellet ore well sifted, smooth operation of furnace is may advantageously facilitate, is improved
Gas permeability in State of Blast Furnace increases iron tar reduction.Reduce dust pollution simultaneously, improve site environment.
2nd, the ladder chute of the utility model reduces the number for shutting down cleaning slide sieve, is cleared up 2 times by original one month
It is reduced to 3 months and clears up 1 time.
3rd, the utility model reduces the three of finished ball nodulizing and has bad luck process, improves finished product area site environment.
4th, falling for the utility model expects that buffer unit can generate the effect for expecting dnockout, can reduce the secondary of finished ball
It is broken, extend the service life of sieve plate, the service life of sieve plate was increased to 6 months by original 2 months, and spare part expense reduces,
It can save and have bad luck and 86.24 ten thousand yuan of spare part expense every year.
5th, the compressed spring that the supporting leg buffer unit of the utility model is set between the bottom of vibrating screen and stent, makes ball
Nodulizing uniform force under the action of stream not only protects sieve plate, but also is conducive to the pellet powder containing quantity of each bed of material all
Blast fumance demand can be reached.
Description of the drawings
Fig. 1 is the structure diagram of existing screening system；
Fig. 2 is the structure diagram of the screening system of the utility model；
Fig. 3 is the structure diagram of the left side view of Fig. 2；
Fig. 4 is the structure diagram of the ladder chute of the utility model；
Fig. 5 is the structure diagram of the arrangement of sieve apertures mode of the utility model；
Fig. 6 is the structure diagram of the sieve pore of the utility model；
Fig. 7 is the sieve pore T shape arrangement architecture schematic diagrames of the utility model；
Fig. 8 is that the sieve plate of the utility model falls shots buffer unit structure schematic diagram；
Fig. 9 is the structure diagram of the supporting leg buffer unit of the utility model；
Figure 10 is the left view structural representation of Fig. 9.
In figure：Return mine storehouse, 5- belt-cooling machines head, 6- of 1- belt-cooling machines, 2- vibrating screens, 3- shaft furnaces finished belt, 4- sieve powder falls
Shots buffer unit, 7- ladder chutes, 8- side supports, 9- edge reductions spring, 10- bottom brackets, 11- bottoms compression bullet
Spring, 12- sieve plates, 13- sieve pores, 14- side's countersunk head screw, 15- monolithics sieve plate, 16- vibrating motors.
Specific embodiment
Below in conjunction with the accompanying drawings come further details of to illustrate the utility model, but the utility model with specific embodiment
Protection domain is not limited to this.
As shown in Figure 1, existing screening system includes belt-cooling machine 1 and 37 degree of settings of inclination are arranged below in belt-cooling machine 1
Vibrating screen 2, the top of the vibrating screen 2 be feed end, vibrating screen lower part be discharge end, the feed end of the vibrating screen 2 with
The belt-cooling machine 1 matches, and the discharge end of the vibrating screen 2 with the shaft furnace finished belt 3 coordinates and be arranged on described shake
The sieve powder for receiving screen powder of dynamic 2 lower section of sieve is returned mine storehouse 4.The shape of sieve pore is common for round, square or rectangle.
As shown in Figures 2 and 3, a kind of finished pellet mine screen subsystem, the screening system include belt-cooling machine 1, vibrating screen 2,
Shaft furnace finished belt 3 and sieve powder are returned mine storehouse 4, the top of the vibrating screen 2 be feed end, vibrating screen 2 lower part be discharge end, institute
The feed end that belt-cooling machine 1 is stated with the vibrating screen 2 matches, the discharge end of the vibrating screen 2 and 3 phase of shaft furnace finished belt
Cooperation, the sieve powder that the lower section of the vibrating screen 2 is equipped with for receiving screen powder are returned mine storehouse 4；The angle of sieve plate 12 is controlled, using vibration
Motor 16, the vibrating motor provide exciting source for the vibrating screen.According to the 35o angles of repose of pellet, mobile shaft furnace finished product
Tail pulley of belt conveyor makes it be matched with the vibrating screen, and 1 time sieve plate of belt-cooling machine, 12 angle drops to 17 ° by original 37 °.According to band
The sieving amount of 1 time vibrating screen of cold 2 is 56.25t/ hours, selects the model YZO-50-6 of vibrating motor 16.
As shown in Figure 4, Figure 5, Figure 6 and Figure 7, according to the granularmetric composition of pellet and situation containing powder, pellet and sieve are reduced
The friction in hole 13, the sieve pore 13 of the sieve plate 12 of the vibrating screen 2 is using slot hole, and the direction of the slot hole is along the pelletizing material
The direction of motion on compass screen surface；To avoid the underproof pelletizing casey sieve pore 13 of granularity, sieve powder is made to pass through sieve pore 13, is used
Cross section is up-small and down-big bucket shape hole, and the bucket shape hole is the rectangular terrace with edge that bottom surface is long 60mm.The bucket shape hole
Upper bottom surface width is 7mm, and the bottom surface width in the bucket shape hole is 12mm, due to the release mesh ranging from 8- of finished ball nodulizing
The width of 14mm, 7mm are just conducive to seed sieve and remove, and sieve after powder enters sieve pore 13, stream space in sieve pore 13 be in by
Gradually widened state, sieve pore 13 are not easy to block.The thickness of sieve plate 12 selects 20mm, not only can guarantee the intensity of sieve plate 12, but also profit
In formation bucket shape blanking effect.The arrangement of sieve pore 13 is arranged using T shapes, maximumlly using sieving area, improves screening
Efficiency.Every three 12 lines of centres of upper and lower sieve pore are triangle stability structure.
As shown in figure 5, vibration screening wear-resistant alloy cast steel sieve plate.In order to increase the wearability of sieve, sieve plate 12
Material selection wear-resistant alloy cast steel；Sieve bottom, compass screen surface are decomposed into 6 pieces, every piece of size is 930mm × 642mm, sieve plate monolithic
15 weight is reduced, and is convenient to mount and dismount；To reduce the resistance of blanking, buildup at connection bolt is prevented, sieve plate is on sieve bottom using side
Dormant bolt 14 is connected and fixed.
As shown in Figure 2, Figure 3 and Figure 4, increase sieving area, design ladder chute.The bottom of the sieve plate 12 of the vibrating screen 2
End, that is, the discharge end of the vibrating screen 2 are equipped with the ladder chute 7 coordinated with the shaft furnace finished belt 3.According to belt-cooling machine
1 width 1000mm, reserves the sprinkling space of pellet, and the width of the inside of vibrating screen 1 is by original 1200mm increases
1300mm；Clear span on the inside of two side supports of vibrating screen 2 is adjusted to for the width adaptability of 1640mm and screen side
1436mm, in order to which in-site installation is with adjusting；It is installed according to the distance 200mm and vibrating screen of belt-cooling machine blanking point to finished belt
17 ° of angle, the length for designing vibrating screen are 2800mm；Increase a ladder chute 7 at splicing, bottom ratio shakes on ladder chute 7
The width of dynamic 2 inside of sieve is slightly narrow, preferably 1200mm, ladder chute 7 go to the bottom it is slightly narrower than the width of shaft furnace finished belt 3, due to
3 width 800mm of shaft furnace finished belt, the bottom of ladder chute 7 is preferably 700mm, and shaft furnace finished product skin is smoothly entered convenient for stream
Band 3.
Fall material buffer unit 6 as shown in figure 8, being equipped in the position for falling shots of 2 sieve plate of vibrating screen.The material that falls delays
Flushing device 6 is the groove being located on the sieve plate 12 of vibrating screen 2.In order to reduce the abrasion of sieve plate 12, from 1 great wheel center of belt-cooling machine
The position for falling shots of 900mm, using the material stock groove of δ=20mm steel plates welding one long 800mm × wide 400mm × high 100mm
As material buffer unit 6 is fallen, the effect of material dnockout is generated, the second-time breakage of finished ball is reduced, reduces the abrasion of compass screen surface, prolong
The service life of long compass screen surface.
As shown in Figure 9 and Figure 10, supporting leg buffer unit is equipped between the sieve plate 12 and the bracket for vibrating screen.The branch
Leg buffer unit includes side buffer unit and bottom buffer unit, and the side buffer unit is respectively in 12 liang of the sieve plate
It is connected between side and side support 8 by edge reduction spring 9；The bottom buffer unit is respectively in 12 bottom of sieve plate
It is connected between both sides and bottom bracket 10 by bottom compressed spring 11；The supporting leg buffer unit has good buffering work(
Can, make pellet uniform force under the action of stream.Preferably, the sieve pore is arranged between the bottom buffer unit
Position avoids damage to the stability of sieve plate 12.
It is noted that above-described embodiment is to the illustrative and not limiting of technical solutions of the utility model, affiliated technology neck
The equivalent replacement of domain those of ordinary skill or the other modifications made according to the prior art, as long as not exceeding the utility model skill
The thinking and range of art scheme should be included within the interest field required by the utility model.
Claims (8)
1. a kind of finished pellet mine screen subsystem, which is characterized in that the screening system include belt-cooling machine, vibrating screen, vibrating motor,
Shaft furnace finished belt and sieve powder are returned mine storehouse, the top of the vibrating screen be feed end, vibrating screen lower part be discharge end, the band
Cold is matched with the feed end of the vibrating screen, and the discharge end of the vibrating screen is matched with the shaft furnace finished belt, institute
The lower section for stating vibrating screen is equipped with and returns mine storehouse for the sieve powder of receiving screen powder, and the vibrating motor provides exciting for the vibrating screen
Source；The sieve pore of the vibrating screen uses slot hole, and the direction of motion of the direction of the slot hole along pelletizing material on compass screen surface is described
Sieve pore is that bottom surface is rectangular terrace with edge, and the sieve pore is arranged using T shapes arrangement mode.
A kind of 2. finished pellet mine screen subsystem according to claim 1, which is characterized in that the discharge end of the vibrating screen
Equipped with the ladder chute coordinated with the shaft furnace finished belt.
3. a kind of finished pellet mine screen subsystem according to claim 1, which is characterized in that the sieve plate of the vibrating screen
Fall shots position be equipped with fall material buffer unit.
4. a kind of finished pellet mine screen subsystem according to claim 3, which is characterized in that described fall expects that buffer unit is
The groove being located on the sieve plate.
5. a kind of finished pellet mine screen subsystem according to claim 1, which is characterized in that the sieve plate of the vibrating screen
Bottom is equipped with supporting leg buffer unit.
A kind of 6. finished pellet mine screen subsystem according to claim 5, which is characterized in that the supporting leg buffer unit packet
Include side buffer unit and bottom buffer unit, the side buffer unit for respectively the sieve plate both sides and side support it
Between connected by edge reduction spring；The bottom buffer unit is respectively between the sieve plate two bottom sides and bottom bracket
It is connected by bottom compressed spring.
7. a kind of finished pellet mine screen subsystem according to claim 1, which is characterized in that the sieve plate of the vibrating screen with
Horizontal angle is 17 degree.
8. a kind of finished pellet mine screen subsystem according to claim 1, which is characterized in that the vibrating screen is resistance to break-in
Golden cast steel sieve plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721260063.6U CN207576876U (en) | 2017-09-28 | 2017-09-28 | A kind of finished pellet mine screen subsystem |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721260063.6U CN207576876U (en) | 2017-09-28 | 2017-09-28 | A kind of finished pellet mine screen subsystem |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207576876U true CN207576876U (en) | 2018-07-06 |
Family
ID=62728759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721260063.6U Active CN207576876U (en) | 2017-09-28 | 2017-09-28 | A kind of finished pellet mine screen subsystem |
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| Country | Link |
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| CN (1) | CN207576876U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109295300A (en) * | 2018-11-09 | 2019-02-01 | 天津瑞利鑫环保科技有限公司 | Dedusting ash finished ball sieves return mechanism |
| CN112857029A (en) * | 2021-01-28 | 2021-05-28 | 江苏鹏飞集团股份有限公司 | Rotary kiln hood cover based on vibration screening |
| CN113400470A (en) * | 2021-05-27 | 2021-09-17 | 张广庆 | Cement mixer |
| CN115254283A (en) * | 2022-07-28 | 2022-11-01 | 宁夏煤矿设计研究院有限责任公司 | Coal vibration screening device |
-
2017
- 2017-09-28 CN CN201721260063.6U patent/CN207576876U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109295300A (en) * | 2018-11-09 | 2019-02-01 | 天津瑞利鑫环保科技有限公司 | Dedusting ash finished ball sieves return mechanism |
| CN112857029A (en) * | 2021-01-28 | 2021-05-28 | 江苏鹏飞集团股份有限公司 | Rotary kiln hood cover based on vibration screening |
| CN113400470A (en) * | 2021-05-27 | 2021-09-17 | 张广庆 | Cement mixer |
| CN115254283A (en) * | 2022-07-28 | 2022-11-01 | 宁夏煤矿设计研究院有限责任公司 | Coal vibration screening device |
| CN115254283B (en) * | 2022-07-28 | 2023-10-20 | 宁夏煤矿设计研究院有限责任公司 | Coal vibration screening device |
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