CN112923724B - Sintering cloth loosening system - Google Patents
Sintering cloth loosening system Download PDFInfo
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- CN112923724B CN112923724B CN202110183123.3A CN202110183123A CN112923724B CN 112923724 B CN112923724 B CN 112923724B CN 202110183123 A CN202110183123 A CN 202110183123A CN 112923724 B CN112923724 B CN 112923724B
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- loosening
- sintering
- loose
- bin
- mixture
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
- F27B9/38—Arrangements of devices for charging
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
- F27B9/38—Arrangements of devices for charging
- F27B2009/382—Charging
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27M—INDEXING SCHEME RELATING TO ASPECTS OF THE CHARGES OR FURNACES, KILNS, OVENS OR RETORTS
- F27M2003/00—Type of treatment of the charge
- F27M2003/04—Sintering
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention relates to a sintering material distributing and loosening system, and belongs to the technical field of sintering. This sintering cloth pine material system includes sintering machine platform truck, shop's bed charge device and mixture device, and shop's bed charge device and mixture device all locate sintering machine platform truck top to set gradually along sintering machine platform truck direction of delivery, the pine feed bin is located between shop's bed charge device and the mixture device, has seted up at least one pine material discharge gate on the pine feed bin. The invention can form a material layer structure that a plurality of loose material strips are embedded between the bedding material and the mixture. Because a large number of gaps exist among particles in the loose material strips and have a certain supporting effect, the mixture can cover the surfaces of the loose material strips, and transition compaction in the processes of material distribution and air draft is avoided under the supporting effect of the loose material strips, so that the loose material effect is achieved; in addition, the gaps in the loose material strips can play a role of ventilation, and the sintering speed of the material layer can be improved.
Description
Technical Field
The invention belongs to the technical field of sintering, and particularly relates to a sintering material distributing and loosening system.
Background
The production process of modern sinter adopts an air draft sintering process, namely, a mixture layer on a sintering pallet is ignited and then burns downwards under the air draft effect of a main exhaust fan until the sintering end point. Due to the self weight of the material layer and the air draft effect, the material layer of the sintering mixture is gradually compacted after the material is distributed, and the air permeability of the material layer of the mixture is reduced. In order to improve the material loosening and the air permeability of the mixed material layer, a fixed bar-shaped loosening device is usually additionally arranged in a material distribution system to improve the material loosening and the air permeability. However, the traditional material loosening device has the problems of easy material sticking, deformation, abrasion and the like, and after the traditional material loosening device enters the air draft section, the material loosening effect disappears, the material layer is gradually compacted under the action of gravity and draft force, and the effect is poor. Meanwhile, the traditional material loosening device is easy to form a transverse gap channel after exiting a material layer, so that the material loosening effect cannot be achieved, the structure of a sinter layer can be damaged, a large amount of raw ores are formed near the gap, and the quality of the sinter is deteriorated.
Because the inherent granularity segregation of the mixed material conveyed to a sintering mixing bin and the edge effect of a sintering trolley exist, the sintering trolley has the phenomenon of large sintering speed difference in the width direction, generally, the sintering speed is high at two sides and low at the center of the conveying direction of the trolley, the sintering speed is higher as the mixed material is closer to the edge of the trolley, the inherent sintering speed difference phenomenon hinders the realization of homogeneous sintering and the improvement of the quality of sintered ore, although the edge effect is inhibited by edge pressing, edge water adding and the like at present, the devices and the methods only act near the edge of the trolley, the action range is narrow, the actual effect is not ideal, and the problem of large sintering speed difference in the width direction of the trolley is not solved by an effective method.
Disclosure of Invention
In view of this, the present invention provides a sintering material distributing and loosening system to overcome the defects of the prior art, so as to solve the technical problems of poor material distributing and loosening effect of the sintering machine and large difference of sintering speed in the width direction of the sintering machine in the prior art.
The invention is realized by the following technical scheme:
a sintered cloth material loosening system, comprising:
the sintering machine trolley is used for conveying materials;
the bottom material paving device is arranged above the sintering machine trolley and is used for paving bottom materials on the grate bars of the sintering machine trolley;
the mixture device is arranged above the sintering machine trolley and is used for arranging mixtures on the bedding material; and the number of the first and second groups,
the material loosening bin is arranged between the bottom material paving device and the mixture device, the bottom material paving device, the material loosening bin and the mixture device are arranged along the conveying direction of the sintering trolley in sequence, at least one material loosening discharge port is formed in the material loosening bin, the material loosening device passes through the material loosening discharge port, a material loosening strip is arranged on the bottom material paving, and the projection area of the material loosening strip on the grate is smaller than that of the bottom material paving.
Optionally, in order to better implement the method, the method further comprises a loose material distributing device, a distributing channel corresponding to the loose material discharging port is arranged on the loose material distributing device, one end of the distributing channel extends to the loose material discharging port, the other end of the distributing channel extends to the discharging port of the mixture device along the conveying direction of the sintering pallet, and the material at the loose material discharging port is shaped by the distributing channel and then arranged on the bedding material.
Optionally, in order to better implement the present invention, the loose material distributing device includes at least one loose material distributing unit, the loose material distributing unit includes two sizing plates arranged at an interval, the sizing plates are perpendicular to the grate, and the distribution channel is formed at an interval between the two sizing plates.
Optionally, in order to better implement the present invention, the loose material distribution device further includes a fixing frame, and the loose material distribution unit is fixed on the fixing frame.
Optionally, in order to better implement the present invention, the fixing frame includes a cross beam and a plurality of connecting pieces, the cross beam is disposed above the loose material distributing unit, one end of each of the plurality of connecting pieces is fixedly connected to the cross beam, and the other end of each of the plurality of connecting pieces is fixedly connected to the corresponding shaping plate.
Optionally, in order to better implement the present invention, the material loosening discharge port of the material loosening bin is provided with a material port adjusting device for adjusting the size of the material port.
Optionally, in order to better implement the present invention, the material port adjusting device includes a baffle and a fixing device, and the baffle is movably covered on the loose material discharge port and is fixed by the fixing device.
Optionally, in order to better implement the present invention, the fixing device includes a screw, a nut, and a fixing plate, the fixing plate is fixed to the loosening bin, one end of the screw is fixedly connected to the baffle, and the other end of the screw penetrates through the fixing plate and is in threaded connection with the nut.
Optionally, in order to better implement the present invention, the material in the loosening bin is sintered ore and/or sintered return ore.
Optionally, in order to better implement the present invention, the opening direction of the loose material outlet is the same as the conveying direction of the sintering pallet.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, the material loosening bin is additionally arranged between the bottom paving bin and the mixture device, the strip-shaped loose material strips are arranged on the bottom paving material through the loose material discharge hole formed in the material loosening bin, and finally the mixture is covered on the loose material strips to form a material layer structure in which a plurality of loose material strips are embedded between the bottom paving material and the mixture. Because a large number of gaps exist among particles in the loose material strips and have a certain supporting effect, the mixture can cover the surfaces of the loose material strips, and transition compaction in the processes of material distribution and air draft is avoided under the supporting effect of the loose material strips, so that the loose material effect is achieved; in addition, the gaps in the loose material strips can play a role of ventilation, the sintering speed of the material layer can be improved, and the sintering homogenization of the whole material is achieved by adjusting the arrangement positions of the loose material strips.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a front view of a sintered cloth loosening system;
FIG. 2 is a top view of a sintered cloth loosening system;
FIG. 3 isbase:Sub>A cross-sectional view A-A of FIG. 2;
FIG. 4 is a schematic view of the installation of the loose material distribution device and the loose bin;
fig. 5 is a schematic diagram of the structure of the bed material formed by the bed material, the loose material strips and the mixed material.
In the figure: 1-grid section; 2-paving a bottom stock bin; 3-loosening the stock bin; 4-shaping plate; 5-mixing a stock bin; 6-round roller blanking device; 7-a multi-roller distributor; 8-loose material discharge port; 9-a baffle plate; 10-a fixture; 11-a chute; 12-laying a bottom material; 13-loosening the material strips; 14-mixing the materials; 15-a cross beam; 16-connecting piece.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
As shown in fig. 1 to 4, a sintering material distributing and loosening system comprises a sintering pallet, a bottom paving bin 2, a loosening bin 3 and a mixture device, wherein the bottom paving bin 2, the loosening bin 3 and the mixture device are fixedly arranged above the sintering pallet through external supporting structures and are sequentially arranged at intervals along the conveying direction of the sintering pallet. In fig. 2 and 4, the direction of the arrow indicates the moving direction of the pallet of the sintering machine.
The sintering machine trolley is used for conveying materials, the bottom paving device comprises a bottom paving bin 2, the bottom paving bin 2 is close to a sintering machine head, the bottom paving bin 2 and a grid section 1 of the sintering machine trolley are arranged at intervals, when the sintering machine trolley moves along the conveying direction, a bottom paving material 12 with a certain thickness is arranged on the grid section 1 through a discharge hole of the bottom paving bin 2, and the bottom paving material 12 is 10-20mm sintered ore.
With reference to fig. 2, 3 and 4, the bottom of the material loosening bin 3 is located above the arranged bed material 12, and does not interfere with the bed material 12, the material loosening bin 3 is provided with a feed inlet and 4 material loosening discharge outlets 8, the opening direction of the 4 material loosening discharge outlets 8 is the same as the conveying direction of the sintering pallet, that is, the opening direction of the material loosening discharge outlets 8 faces the direction of the mixture devices in the conveying direction of the sintering pallet, and the 4 material loosening discharge outlets 8 are uniformly arranged on the side wall of the material loosening bin 3 facing the mixture devices at intervals along the width direction of the sintering pallet, where the width direction refers to the direction in which the connecting lines on both sides of the conveying direction of the sintering pallet are located. The material in the material loosening bin 3 can be sintered ore, sintered return fine, or mixed material formed by mixing the sintered ore and the sintered return fine. The materials in the loosening bin 3 are paved on the upper surface of the bedding material 12 from the loosening discharge port 8 and move along with the bedding material 12 under the conveying action of the sintering machine trolley to form a strip-shaped loosening bar 13, the projection area of the loosening bar 13 on the grate bar 1 is smaller than that of the bedding material 12 on the grate bar 1, namely the width of the loosening bar 13 is smaller than that of the bedding material 12. Of course, the loose material discharge ports 8 can be set to be 1, 2, 3 and any other number according to actual use requirements, and the distance between the loose material discharge ports 8 can be adjusted at will and is not limited to be set at uniform intervals.
As shown in fig. 1, the mixture device includes a mixing bin 5 and a mixture distributing device, and the mixture distributing device is disposed at a discharge port of the mixing bin 5. The mixture distributing device comprises a round roller feeder 6 and a multi-roller distributor 7, the round roller feeder 6 is positioned at the discharge port of the mixing bin 5, the multi-roller distributor 7 is obliquely arranged below the round roller feeder 6 and used for distributing the mixture 14, and a distributing channel is positioned below the multi-roller distributor 7. The mixing bunker 5 is filled with a mixture 14, the mixture 14 passes through the multi-roller distributing device 7 and the round roller blanking device 6, and is laid and arranged on the bedding material 12, and the loose material strips 13 are covered at the same time, so that a material layer structure shown in fig. 5 is formed, wherein a plurality of loose material strips 13 are embedded between the bedding material 12 and the mixture 14.
The function of this bed of material structure does: a large number of gaps exist among particles in the loose material strips 13 and have a certain supporting effect, the mixture 14 can cover the surfaces of the loose material strips 13, transition compaction in the material distribution and air draft processes is avoided under the supporting effect of the loose material strips 13, and the material loosening effect is achieved; in addition, the gaps in the loose material strips 13 can play a role of ventilation, and the sintering speed of the material layer can be improved. The quantity, the interval, the width, the height and other parameters of the loose material strips 13 in the width direction of the sintering trolley are reasonably adjusted according to actual working conditions, so that the air permeability and the sintering speed in the width direction of the sintering trolley can be adjusted, the same sintering speed is achieved in the width direction of the trolley, and the effect of homogeneous sintering is achieved. For example, because the sintering pallet has a fringe effect that the sintering speed is high at two sides and the center of the sintering pallet in the conveying direction is low, the loose material strips 13 are arranged on the bedding material 12 in the middle of the sintering pallet in the conveying direction, so that the sintering speed in the center area of the sintering pallet is increased, and the effect of homogeneous sintering can be achieved. The number, the spacing and the width of the loose material strips 13 are related to the number, the spacing and the width of the loose material discharge holes 8, and the height of the loose material strips 13 is related to the size of the loose material discharge holes 8.
It should be noted that, in the present embodiment, the loose material discharge port 8 of the loose material bin 3 may be disposed on the bottom of the loose material bin 3 or on the side wall of the other side of the loose material bin 3, besides being disposed on the side wall of one side of the loose material bin 3 in the same conveying direction as the sintering machine. The particle diameter of the sintered ore is 10-20mm, and the particle diameter of the sintered return ore is 0-5mm, so that the formed loose material strips 13 have a large number of gaps, and part of the mixed material 14 can enter the gaps of the loose material strips 13 to form looser mixed material 14. By adjusting the proportion of the sintering ore and the sintering return ore, loose material strips 13 with different loose materials and ventilation effects can be obtained, different sintering working condition adjustment requirements can be met, and meanwhile, the effective utilization of the sintering return ore is realized.
As shown in fig. 3, a material outlet 8 of the material loosening bin 3 is provided with a material inlet adjusting device for adjusting the size of the material inlet, the material inlet adjusting device includes a baffle 9 and a fixing device 10, and the baffle 9 is movably shielded on the material outlet 8 and fixed by the fixing device 10. In this embodiment, the relative bilateral symmetry of pine material discharge gate 8 is equipped with spout 11, baffle 9 is gliding to be installed in spout 11 and to realize opening and shutting the slip of pine material discharge gate 8 with the lateral wall laminating of pine feed bin 3, fixing device 10 includes the screw rod, nut and fixed plate, the fixed plate sets up the top at pine material discharge gate 8, be equipped with the via hole with screw rod looks adaptation on the fixed plate, the one end and the fixed plate fixed connection of screw rod, the other end of screw rod passes via hole and baffle 9 fixed connection on the fixed plate, and realize the regulation to the height-adjusting of fixed plate through the nut. Of course, besides adjusting the baffle 9 in a sliding manner, the baffle 9 can be moved in a swinging manner, so that the size of the loose material discharge port 8 can be adjusted.
As shown in fig. 4, a loose material distributing device is further disposed between the sintering pallet and the loose material bin 3, the loose material distributing device is located above the bedding material 12, and the loose material distributing device includes the same number of loose material distributing units as the number of the loose material discharging holes 8, that is, four loose material distributing units in this embodiment. Every pine material cloth unit all includes the stereotype 4 that two intervals set up, and stereotype 4 for straight board and perpendicular with grid 1 for two stereotype 4 vertical settings and the interval between two stereotype 4 forms the cloth passageway, and a cloth passageway corresponds a pine material discharge gate 8 respectively. One end of the material distribution channel extends to the position of the loose material discharge port 8, so that materials discharged from the loose material discharge port 8 directly enter the material distribution channel, strip-shaped loose material strips 13 with rectangular cross sections are formed under the limitation of the shaping plate 4 of the material distribution channel, and after the loose material distribution device is arranged, the materials consumed in the forming process of the loose material strips 13 can be reduced. It should be noted that the lower end of the material distribution channel is close to the bedding material 12 or the lower end of the material distribution channel is attached to the bedding material 12, that is, the lower end surface of the sizing plate 4 is close to the bedding material 12 or attached to the bedding material 12, so that the section of the loose material strip 13 is rectangular. The other end of the material distribution channel extends to the material outlet of the multi-roller feeder 7 of the mixture 14 device, so that the mixture 14 immediately covers the loose material strips 13 as soon as the loose material strips 13 leave the material distribution channel, and the cross section of the loose material strips 13 can be kept to be rectangular and not to be loose.
As shown in fig. 4, the loose material distributing device further comprises a fixing frame, the fixing frame comprises a cross beam 15 and a plurality of connecting pieces 16, the cross beam 15 is arranged above the loose material distributing unit and connected with an external fixing base, the connecting pieces 16 are straight rods or long laths, one ends of the connecting pieces 16 are fixedly connected with the cross beam 15, the other ends of the connecting pieces are fixedly connected with the corresponding shaping plates 4, and therefore the loose material distributing unit is fixed above the bedding material 12.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (8)
1. A sintering cloth loosening system is characterized by comprising:
the sintering machine trolley is used for conveying materials;
the bottom material paving device is arranged above the sintering machine trolley and is used for paving bottom materials on the grate bars of the sintering machine trolley;
the mixture device is arranged above the sintering machine trolley and is used for arranging a mixture on the bedding material;
the material loosening bin is arranged between the bottom material paving device and the mixture device, the bottom material paving device, the material loosening bin and the mixture device are sequentially arranged along the conveying direction of the sintering pallet, at least one material loosening discharge hole is formed in the material loosening bin, a material loosening strip is arranged on the bottom material paving device through the material loosening discharge hole by the material loosening device, and the projection area of the material loosening strip on the grate is smaller than that of the bottom material paving device on the grate;
the material loosening and distributing device is provided with a material distributing channel corresponding to the material loosening and discharging port, one end of the material distributing channel extends to the material loosening and discharging port, the other end of the material distributing channel extends to the discharging port of the material mixing device along the conveying direction of the sintering pallet, and the material at the material loosening and discharging port is shaped through the material distributing channel and then is arranged on the bedding material;
the loose material distributing device comprises at least one loose material distributing unit, the loose material distributing unit comprises two sizing plates arranged at intervals, the sizing plates are perpendicular to the grate bars, and the intervals between the sizing plates form the distributing channel.
2. The system of claim 1, wherein the material loosening and distributing device further comprises a fixing frame, and the material loosening and distributing unit is fixed on the fixing frame.
3. The system of claim 2, wherein the fixing frame comprises a beam and a plurality of connecting pieces, the beam is arranged above the loosening distribution unit, one ends of the connecting pieces are fixedly connected with the beam, and the other ends of the connecting pieces are fixedly connected with the shaping plates.
4. The system for loosening sintered material distribution as claimed in claim 1, wherein the loosening discharge port of the loosening bin is provided with a port adjusting device for adjusting the size of the discharge port.
5. A sintering material distribution loosening system as claimed in claim 4, wherein the material port adjusting device comprises a baffle plate and a fixing device, and the baffle plate is movably covered on the loosening material outlet and is fixed by the fixing device.
6. The system of claim 5, wherein the fixing device comprises a screw, a nut and a fixing plate, the fixing plate is fixed on the loosening bin, one end of the screw is fixedly connected with the baffle, and the other end of the screw penetrates through the fixing plate and is in threaded connection with the nut.
7. A sintered material distributing and loosening system as claimed in claim 1, wherein the material in the loosening bin is sinter and/or sintered return.
8. A sintered cloth loosening system as claimed in any of claims 1-7, wherein: the opening direction of the loose material discharge port is the same as the conveying direction of the sintering machine trolley.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110183123.3A CN112923724B (en) | 2021-02-08 | 2021-02-08 | Sintering cloth loosening system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110183123.3A CN112923724B (en) | 2021-02-08 | 2021-02-08 | Sintering cloth loosening system |
Publications (2)
| Publication Number | Publication Date |
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| CN112923724A CN112923724A (en) | 2021-06-08 |
| CN112923724B true CN112923724B (en) | 2022-12-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110183123.3A Active CN112923724B (en) | 2021-02-08 | 2021-02-08 | Sintering cloth loosening system |
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Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4630091B2 (en) * | 2005-03-07 | 2011-02-09 | 新日本製鐵株式会社 | Pretreatment method of sintering raw material |
| CN201302373Y (en) * | 2008-11-27 | 2009-09-02 | 邯郸钢铁股份有限公司 | Elastic automatic regulator for sintering bedding material |
| CN104019664B (en) * | 2014-06-18 | 2016-01-20 | 马钢(集团)控股有限公司 | A kind of for the fine device that given layer is thrown in sinter mixture and put-on method thereof |
| CN106996696A (en) * | 2016-01-25 | 2017-08-01 | 中钢设备有限公司 | sintering machine distributing gate |
| CN207618327U (en) * | 2017-12-08 | 2018-07-17 | 江苏省冶金设计院有限公司 | A kind of stirring device of large-sized silo |
| CN110383979B (en) * | 2019-08-29 | 2024-03-12 | 河北省农林科学院农业资源环境研究所 | Fertilizing device |
| CN111826517B (en) * | 2020-07-12 | 2022-03-22 | 首钢集团有限公司 | Super-thick material layer sintering material, sintering method and sintering ore |
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