CN105274327A - Pelletizing raw material loosening and blanking device and method - Google Patents
Pelletizing raw material loosening and blanking device and method Download PDFInfo
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- CN105274327A CN105274327A CN201410339148.8A CN201410339148A CN105274327A CN 105274327 A CN105274327 A CN 105274327A CN 201410339148 A CN201410339148 A CN 201410339148A CN 105274327 A CN105274327 A CN 105274327A
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Abstract
The invention discloses a pelletizing raw material loosening and blanking device and method. The pelletizing raw material loosening and blanking device comprises a base plate, enclosure plates, a material loosening plate, a vibrating plate and a driving device. The enclosure plates are welded to the four sides of the base plate. The vibrating plate is fixed to the middle of the lower surface of the base plate. Material loosening holes are evenly distributed in the upper portion and the lower portion of the base plate respectively. Material loosening bars penetrate through the material loosening holes. The lower ends of the material loosening bars are welded to the material loosening plate. The driving device is connected to the lower surface of the material loosening plate. The material loosening plate is movably connected to the base plate through shaft pins. The material loosening and blanking device is obliquely arranged between a feeding belt and a disc pelletizer. The material loosening bars vibrate at a certain frequency under the driving of the driving device, and thus pelletizing raw materials fallen onto the base plate are loosened into mineral powder with the uniform granularity; meanwhile, the base plate also vibrates continuously under the action of the vibrating plate, so that the mineral powder dispersed on the base plate is evenly distributed in a pelletizing disc. By the adoption of the pelletizing raw material loosening and blanking device and method, the dispersity of the pelletizing raw materials fallen into the pelletizing disc can be improved, the contact area between a green pellet and the mineral powder is increased, the pelletizing time is sufficient, and the quality of the green pellet is improved; the quality of returned materials is reduced, and the load of a screening system is reduced.
Description
Technical field
The invention belongs to pellet production field, particularly relate to a kind of loose metal distribution device and method thereof of pellet pelletizing raw material.
Background technology
Balling disc adopts shaping pelletizing principle of rolling, be a kind of disc balling equipment fine particle powder-form material made granularity and meet the spherical material of lower road job requirements, be widely used in the iron ore pellets production of metallurgical industry and the pelletizing operation of non-ferrous metal collective concentrate.Material is in the process of rolling balling, under producing frictional force effect with disk bottom surface, by disk with rotating counterclockwise together, when material is taken to certain altitude, material will tumble downwards, the mother bulb of so different size does rolling resistance with disk, constantly bonding bulk cargo and growing up, continuous rubbing and pressure friction and closely knit.
The quality of pellet raw ball quality, except being subject to the performance of raw material own and balling disk (-sc) parameter influence, the feed-type also by balling disk (-sc) affects.Current most of pelletizing plant pelletizing raw material directly falls into balling disc by feeding belt and carries out pelletizing, and because pelletizing material viscosity is comparatively large, belt width is narrower, when pelletizing raw material falls into balling disc from belt, sticks and disperses not open together.When joining the raw material in balling disk (-sc) and too concentrating, some local pelletizing raw material is less, and mother bulb adheres to less than enough breezes, balling-up time lengthening, reduces production efficiency; Some local pelletizing raw material is more, directly cause growing up in the mother bulb short period of time, have little time abundant balling-up, just because the effect of centrifugal force throws away balling disk (-sc) with the green-ball of having grown up, fall into screening system, which not only adds load and the returning charge amount of screening system, and affect the various physical and chemical indexs of green-ball.Therefore, by improving balling disc feed-type, breeze dispersedly cloth coil to pelletizing garden, contribute to raising quality of green pellets.
Number of patent application 200810117842.X discloses a kind of balling disk (-sc) material feeder; make the bracing members frame of a U-shaped; multiple circular hole is opened in the two side of bracing frame, puts steel rod of smooth abrasion-proof in circular hole, the sub-recessing in each rod two ends position; in the position of each alignment indentation; protective guard fixes a travelling arm with bolt, and the free head of travelling arm is placed in the groove of rod head, and rod can only be rolled; but this device manufactures complicated and rod is easily stuck, does not have loose metal effect.
Number of patent application 201120485138.7 discloses a kind of balling disk (-sc) feeding device, comprise balling disc and feeding belt, and between feeding belt outlet and balling disc, a material distributing plate is set, but this material distributing plate only has shock absorption to pelletizing raw material, and fail raw material is fully scattered, more do not realize uniform distribution.
Summary of the invention
The present invention aims to provide and a kind ofly can improve dispersity and the uniformity coefficient that pelletizing raw material falls into pelletizing disk, increases the contact area of breeze rolling balling, thus improves pelletizing raw material loose metal distribution device and the method for quality of green pellets.
For this reason, the solution that the present invention takes is:
A kind of pelletizing raw material loose metal distribution device, comprises base plate, coaming plate, loose metal plate, oscillating plate and drive unit; All coaming plate is welded with on four limits of trapezoidal base plate, form a dovetail groove, base plate edge is respectively equipped with bolt hole and pin shaft hole, oscillating plate has been bolted in the middle part of base plate lower surface, backing plate is provided with between base plate and oscillating plate, base plate upper and lower is staggeredly distributed with loose metal hole respectively, highly different loose metal rods is penetrated in loose metal hole, upper and lower loose metal rod lower end is welded on one piece independently above loose metal plate respectively, loose metal plate lower surface is connected with drive unit, and loose metal plate is movably connected on base plate by bearing pin.
Described loose metal rod is right cylinder or square body, and base plate loose metal hole is corresponding with it is set to circular hole or square hole.
A method for pelletizing raw material loose metal cloth, the detailed process of its loose metal cloth is:
First narrow for the base plate of loose metal distribution device limit is tiltedly arranged between feeding belt and balling disc at upper, broadside having a down dip, makes the angle between plate upper surface and feeding belt horizontal plane be 50 ° ~ 80 °; After feeding, first the pelletizing raw material fallen from feeding belt drops on loose metal distribution device base plate, in base plate loose metal hole, the loose metal of different heights is excellent on the one hand, along loose metal axially bored line direction up-down vibration under the driving of drive unit, loose metal is carried out to the pelletizing raw material on base plate, by the uniform breeze of loose for pelletizing raw material granulating degree; Meanwhile, base plate also constantly vibrates under the effect of oscillating plate, thus the breeze be dispersed on base plate is evenly deployed in pelletizing disk.
The maximum exciting force of described oscillating plate is 1500 ~ 3000N, and amplitude is 1 ~ 3mm.
The vibrational frequency of described loose metal rod is 20 ~ 60 times/min.
Beneficial effect of the present invention is:
1, the present invention can improve the dispersity that pelletizing raw material falls into pelletizing disk, increases the contact area of green-ball and breeze, makes the balling-up time abundant, improves quality of green pellets.
2, the present invention can reduce returning charge amount, reduces the load of screening system.
Accompanying drawing explanation
Fig. 1 is loose metal distribution device vertical view;
Fig. 2 is loose metal distribution device side-view;
Fig. 3 is loose metal distribution device installation position schematic diagram.
In figure: coaming plate 1, base plate 2, oscillating plate 3, bearing pin 4, loose metal rod 5, loose metal hole 6, bolt 7, loose metal plate 8, drive unit 9, balling disc 10, feeding belt 11, loose metal distribution device 12, backing plate 13.
Embodiment
As seen from Figure 1, pelletizing raw material loose metal distribution device of the present invention is mainly made up of coaming plate 1, base plate 2, oscillating plate 3, loose metal plate 8 and drive unit 9.Base plate 2 is a trapezoidal plate, and base plate 2 edge is respectively equipped with pin shaft hole and bolt hole, is divided into two pieces is staggeredly distributed with circle (or square) loose metal hole 6 in the upper and lower of base plate 2.Loose metal plate 8 is divided into small one and large one two pieces of trapezoidal plates, wherein corresponding base plate 2 top of fritter, and corresponding base plate 2 bottom of bulk, the upper surface of loose metal plate 8 and loose metal hole 6 correspondence position of base plate 2 are welded with the different right cylinder of length (or square body) loose metal rod 5.
All be welded with coaming plate 1 on four limits of base plate 2, thus will a up-narrow and down-wide dovetail groove be which form.Oscillating plate 3 is fixed with by bolt 7 in the middle part of base plate 2 lower surface, backing plate 13 is provided with between base plate 2 and oscillating plate 3, two blocks of loose metal plates 8 are movably connected in below base plate 2 by bearing pin 4, and the loose metal rod 5 on loose metal plate 8 is through different being distributed in above base plate 2 of height behind loose metal hole 6.Be connected with drive unit 9(at the lower surface of loose metal plate 8 and see Fig. 2), move up and down to drive loose metal plate 8 and loose metal rod 5.
Embodiment 1
First the narrow limit of base plate 2 of loose metal distribution device 12 is tiltedly arranged on (see figure 3) between feeding belt 11 and balling disc 10 at upper, broadside having a down dip, makes the angle between base plate 2 upper surface and feeding belt 11 horizontal plane be 65 °.After feeding, first the pelletizing raw material fallen from feeding belt 11 drops on the base plate 2 of loose metal distribution device 12, the loose metal rod 5 of different heights in one side base plate 2 loose metal hole 6, with the vibrational frequency up-down vibration of 40 times/min under the driving of drive unit 9, loose metal is carried out to the pelletizing raw material on base plate 2, by the uniform breeze of loose for pelletizing raw material granulating degree.Meanwhile, oscillating plate 3 constantly vibrates with the amplitude of the exciting force of 1900N and 1.5mm, and drives base plate 2 and its synchronous vibration, thus dispersion breeze on a base plate 2 is evenly deployed in the pelletizing disk of balling disc 10.
Embodiment 2
First the narrow limit of base plate 2 of loose metal distribution device 12 is tiltedly arranged on (see figure 3) between feeding belt 11 and balling disc 10 at upper, broadside having a down dip, makes the angle between base plate 2 upper surface and feeding belt 11 horizontal plane be 70 °.After feeding, first the pelletizing raw material fallen from feeding belt 11 drops on the base plate 2 of loose metal distribution device 12, the loose metal rod 5 of different heights in one side base plate 2 loose metal hole 6, with the vibrational frequency up-down vibration of 60 times/min under the driving of drive unit 9, loose metal is carried out to the pelletizing raw material on base plate 2, by the uniform breeze of loose for pelletizing raw material granulating degree.Meanwhile, oscillating plate 3 constantly vibrates with the amplitude of the exciting force of 2500N and 2.5mm, and drives base plate 2 and its synchronous vibration, thus dispersion breeze on a base plate 2 is evenly deployed in the pelletizing disk of balling disc 10.
The present invention homodisperse for raw material cloth in balling disk (-sc), can increase the contact area of mother bulb and breeze, improves the rolling balling of green-ball, reduces pelletizing returning charge amount, improves quality of green pellets.Under same raw material and pellet forming process condition, the green-ball index of embodiment and comparative example is as shown in table 1:
Table 1 embodiment and comparative example green-ball index
| Shatter strength of green pellet/ball | Compression strength of green pellet/N/ ball | Dry bulb ultimate compression strength/N/ ball | |
| Embodiment 1 | 7.5 | 15.52 | 46.63 |
| Embodiment 2 | 7.9 | 15.12 | 47.62 |
| Comparative example | 5.2 | 12.24 | 36.52 |
When loose metal rod 5 serious wear, lower bearing pin 4 can be unloaded easily, change loose metal plate 8.
Claims (5)
1. a pelletizing raw material loose metal distribution device, is characterized in that, comprises base plate, coaming plate, loose metal plate, oscillating plate and drive unit; All coaming plate is welded with on four limits of trapezoidal base plate, form a dovetail groove, base plate edge is respectively equipped with bolt hole and pin shaft hole, oscillating plate has been bolted in the middle part of base plate lower surface, backing plate is provided with between base plate and oscillating plate, base plate upper and lower is staggeredly distributed with loose metal hole respectively, highly different loose metal rods is penetrated in loose metal hole, upper and lower loose metal rod lower end is welded on one piece independently above loose metal plate respectively, loose metal plate lower surface is connected with drive unit, and loose metal plate is movably connected on base plate by bearing pin.
2. pelletizing raw material loose metal distribution device according to claim 1, is characterized in that, described loose metal rod is right cylinder or square body, and base plate loose metal hole is corresponding with it is set to circular hole or square hole.
3. application rights requires a method for pelletizing raw material loose metal distribution device described in 1, and it is characterized in that, the detailed process of loose metal cloth is:
First narrow for the base plate of loose metal distribution device limit is tiltedly arranged between feeding belt and balling disc at upper, broadside having a down dip, makes the angle between plate upper surface and feeding belt horizontal plane be 50 ° ~ 80 °; After feeding, first the pelletizing raw material fallen from feeding belt drops on loose metal distribution device base plate, in base plate loose metal hole, the loose metal of different heights is excellent on the one hand, along loose metal axially bored line direction up-down vibration under the driving of drive unit, loose metal is carried out to the pelletizing raw material on base plate, by the uniform breeze of loose for pelletizing raw material granulating degree; Meanwhile, base plate also constantly vibrates under the effect of oscillating plate, thus the breeze be dispersed on base plate is evenly deployed in pelletizing disk.
4. application rights according to claim 3 requires the method for pelletizing raw material loose metal distribution device described in 1, and it is characterized in that, the maximum exciting force of described oscillating plate is 1500 ~ 3000N, and amplitude is 1 ~ 3mm.
5. application rights according to claim 3 requires the method for pelletizing raw material loose metal distribution device described in 1, and it is characterized in that, the vibrational frequency of described loose metal rod is 20 ~ 60 times/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410339148.8A CN105274327B (en) | 2014-07-16 | 2014-07-16 | Pelletizing raw material loosening and blanking device and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410339148.8A CN105274327B (en) | 2014-07-16 | 2014-07-16 | Pelletizing raw material loosening and blanking device and method |
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| CN105274327A true CN105274327A (en) | 2016-01-27 |
| CN105274327B CN105274327B (en) | 2017-05-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410339148.8A Active CN105274327B (en) | 2014-07-16 | 2014-07-16 | Pelletizing raw material loosening and blanking device and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113403475A (en) * | 2021-06-16 | 2021-09-17 | 马鞍山钢铁股份有限公司 | Method for pelletizing solid hazardous waste materials by steel dust and sludge rotary hearth furnace method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101332420A (en) * | 2008-08-06 | 2008-12-31 | 首钢总公司 | Pelletizing disc feeding disperser |
| CN201407897Y (en) * | 2009-04-16 | 2010-02-17 | 上海梅山钢铁股份有限公司 | Sintering detachable type dual-layer material loosening device |
| CN202066359U (en) * | 2011-03-30 | 2011-12-07 | 鞍钢股份有限公司 | Vibrating material loosening device |
| CN202518758U (en) * | 2012-03-29 | 2012-11-07 | 南京易北电气有限公司 | Novel uniform feeding machine |
-
2014
- 2014-07-16 CN CN201410339148.8A patent/CN105274327B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101332420A (en) * | 2008-08-06 | 2008-12-31 | 首钢总公司 | Pelletizing disc feeding disperser |
| CN201407897Y (en) * | 2009-04-16 | 2010-02-17 | 上海梅山钢铁股份有限公司 | Sintering detachable type dual-layer material loosening device |
| CN202066359U (en) * | 2011-03-30 | 2011-12-07 | 鞍钢股份有限公司 | Vibrating material loosening device |
| CN202518758U (en) * | 2012-03-29 | 2012-11-07 | 南京易北电气有限公司 | Novel uniform feeding machine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113403475A (en) * | 2021-06-16 | 2021-09-17 | 马鞍山钢铁股份有限公司 | Method for pelletizing solid hazardous waste materials by steel dust and sludge rotary hearth furnace method |
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| CN105274327B (en) | 2017-05-24 |
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