CN110749197A - Sintering screening material distribution device and method - Google Patents
Sintering screening material distribution device and method Download PDFInfo
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- CN110749197A CN110749197A CN201910919483.8A CN201910919483A CN110749197A CN 110749197 A CN110749197 A CN 110749197A CN 201910919483 A CN201910919483 A CN 201910919483A CN 110749197 A CN110749197 A CN 110749197A
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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
- F27B21/00—Open or uncovered sintering apparatus; Other heat-treatment apparatus of like construction
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
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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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Abstract
The invention discloses a sintering screening material distribution device and a sintering screening material distribution method, which solve the technical problems of large fall, large occupied area, large investment and the like of the existing screening system. The sintering, screening and distributing device adjusts the layout of the primary screen, the primary screen is moved to a bottom material paving system from the whole screening system, namely the primary screen is adjusted to be above a bottom material paving bin, the original screening system is changed into a secondary screen and a tertiary screen, and the integral fall is reduced; in addition, the sintering, screening and distributing device is additionally provided with a large bottom paving bin beside the bottom paving bin, undersize materials of the secondary screen are screened by the tertiary screen, oversize materials of the tertiary screen are used as bottom paving materials, and the bottom paving materials contain small finished ore which cannot be used as the bottom paving materials by the conventional device. When distributing, firstly laying large-granularity bedding materials, and then laying small-granularity bedding materials on the large-granularity bedding materials, effectively utilizing a part of return ores to increase the large-granularity proportion of the sinter ores, changing the granularity composition of the sinter ores and improving the quality of the sinter ores.
Description
Technical Field
The application belongs to the technical field of metallurgy iron-making material sintering, and particularly relates to a sintering screening distributing device and method.
Background
In the sintering industry, the screening process mainly comprises three screening devices, namely a primary screen, a secondary screen and a tertiary screen. Fig. 1 shows a typical arrangement of a sintering screening and distributing device in the prior art, which includes a sintering ore screening system 100 and a sintering material distributing system 200. The sintering ore screening system 100 mainly comprises the primary screen 1, the secondary screen 2 and the tertiary screen 3; the sintering material distributing system 200 mainly comprises a bottoming bin 5, a mixing bin 6, a batching device 10, a mixing device 11, a sintering machine (mainly comprising a trolley 7, a distributing device 12 and an ignition device 13), a crushing device 8 for crushing sinter of the sintering machine and a cooling device 9 for cooling the sinter of the sintering machine.
During production, after the cooled sintering ore is screened by the primary screen 1, the oversize product of the primary screen 1 is further screened by the secondary screen 2, and the undersize product of the primary screen 1 is further screened by the tertiary screen 3; oversize materials of the secondary screen 2 are conveyed to a blast furnace 4, undersize materials of the secondary screen 2 are partially conveyed to the blast furnace 4, and partially conveyed to a bottom paving bin 5; oversize materials of the tertiary screen 3 are conveyed to a blast furnace 4, undersize materials of the tertiary screen 3 are conveyed to a batching device 10, particles in the batching device 10 are conveyed to a mixing bin 6 after passing through a mixing device 11, the particles after passing through the mixing bin 6 sequentially pass through a sintering material distribution device 12 and an ignition device 13 to be sintered on a sintering machine trolley 7, the obtained sintering ore is treated by a crushing device 8 and a cooling device 9 and then enters a sintering ore screening system 100 again, the sintering ore with qualified particle size is directly conveyed to the blast furnace, and the sintering ore with unqualified particle size enters a sintering material distribution system 200 to be reprocessed.
Present sintering sieve distribution material device mainly elongates overall arrangement or three-dimensional concentrated overall arrangement with three screening equipment, and it causes area increase to lengthen the overall arrangement, and the three-dimensional concentrated screening overall arrangement then exists great drop, and whatever kind of form all needs many belts to carry out the feed bin transportation, and the investment is great and great to sinter mineral matter volume influence.
Disclosure of Invention
In order to solve the technical problems, the invention provides a sintering screening distributing device and a sintering screening distributing method, which can reduce the fall of a screening device, reduce the investment and improve the quality of sintered ore.
The technical scheme adopted for achieving the purpose of the invention is that the sintering screening and distributing device comprises a primary screen, a secondary screen, a tertiary screen, a bottom paving bin of a sintering machine and a large bottom paving bin, wherein the large bottom paving bin is arranged beside the bottom paving bin;
the primary screen is arranged above the bottom paving bin, an undersize material bin of the primary screen is communicated with the bottom paving bin, a chute for conveying oversize materials of the primary screen is arranged beside the primary screen, and the chute is communicated with the large bottom paving bin;
the secondary sieve is arranged above the tertiary sieve, and a conveying device used for conveying oversize materials of the tertiary sieve to the primary sieve is arranged beside the tertiary sieve.
Preferably, the screen aperture of the primary screen is smaller than that of the secondary screen, and the screen aperture of the primary screen is larger than that of the tertiary screen.
Preferably, the sintering, screening and distributing device further comprises a mixing bin, the mixing bin is arranged beside the bottom paving bin, and the bottom paving bin is positioned between the mixing bin and the large bottom paving bin;
and the mixing bin is communicated with a batching system of the sintering machine.
Preferably, the batching system of the sintering machine comprises a batching device and a mixing device, and the batching device, the mixing device and the mixing bunker are sequentially communicated.
Preferably, the sintering, screening and distributing device further comprises a crushing device for crushing the sintered ore of the sintering machine.
Preferably, the sintering, screening and distributing device further comprises a cooling device for cooling the sintered ore of the sintering machine.
Based on the same inventive concept, the invention also provides a sintering screening material distribution method based on the sintering screening material distribution device, which comprises the following steps:
a screening process:
directly screening the sintered ore of the sintering machine through the secondary screen and the tertiary screen, wherein undersize of the secondary screen is used as incoming materials of the tertiary screen;
conveying undersize of the tertiary screen to a batching system of the sintering machine, conveying oversize of the tertiary screen and oversize of the secondary screen to a blast furnace, and simultaneously conveying oversize of the tertiary screen to the primary screen;
conveying oversize materials of the primary screen to the large bottom paving bin, and conveying undersize materials of the primary screen to the bottom paving bin;
the cloth process comprises the following steps:
during material distribution, the large bottom paving bin discharges materials firstly, large-granularity bottom paving materials of the large bottom paving bin are firstly paved on a trolley of the sintering machine, when the trolley moves to the bottom paving bin, the bottom paving bin starts to discharge materials, and small-granularity bottom paving materials are paved on the large-granularity bottom paving materials.
Further, the screen aperture of the primary screen is smaller than that of the secondary screen, and the screen aperture of the primary screen is larger than that of the tertiary screen.
Further, the oversize material of the tertiary screen and the oversize material of the secondary screen are conveyed to the blast furnace through the same conveying device.
Further, the conveying device is a belt conveyor.
According to the technical scheme, the sintering, screening and distributing device provided by the invention has the advantages that the layout of the primary screen is adjusted, the layout of the primary screen in the traditional device layout is moved to the bottom material paving system from the whole screening system, namely, the primary screen is adjusted to the position above the bottom material paving bin, after the primary screen is moved out of the screening system, the original screening system is changed into the secondary screen and the tertiary screen, and the integral fall is reduced by about 3.9m (the height of the primary screen is about 3.9 m). And the primary screen shifts out after the layout of the existing screening system, the secondary screen is arranged above the tertiary screen, and oversize products of the secondary screen and the tertiary screen directly enter the blast furnace through the same conveying device, so that the conveying flow and the arrangement of the conveying device are reduced.
According to the sintering screening distributing device provided by the invention, the large bottom paving bin is added on the basis of the existing bottom paving bin, and due to the addition of storage, the storage capacity of the bottom paving bin is improved, and the material circulation time is prolonged. And the whole period operation of the primary screen is changed into synchronous operation with the bottom-laying material belt, and the operation rate of the bottom-laying material belt is about 70 percent, so compared with the prior art, the method and the device can reduce the operation period of the primary screen by about 30 percent and reduce the power consumption of the primary screen.
The sintering screening distributing device provided by the invention correspondingly changes the screening mode due to the adjustment of the layout of the screening system: the secondary screen is arranged above the tertiary screen, and undersize of the secondary screen is directly used as incoming materials of the tertiary screen; a conveying device for conveying oversize materials of the tertiary screen to the primary screen is arranged beside the tertiary screen, so that the oversize materials of the tertiary screen are used as incoming materials of the primary screen; the undersize material warehouse of the primary screen is communicated with the bottom paving bin, and undersize materials of the primary screen are sent to the bottom paving bin; the chute for conveying oversize materials of the primary screen is arranged beside the primary screen and communicated with the large-paving-bottom bin, so that the oversize materials of the primary screen are conveyed to the large-paving-bottom bin.
In summary, in the sintering, screening and distributing device provided by the invention, the materials stored in the bottom-laying bin are undersize (the particle size is smaller than the screen aperture of the primary screen), and the materials stored in the large bottom-laying bin are oversize (the particle size is between the screen aperture of the primary screen and the screen aperture of the secondary screen). In the existing sintering sieve distribution device, the material stored in the bottom paving bin is undersize of a secondary sieve (the granularity is between the sieve aperture of a primary sieve and the sieve aperture of the secondary sieve). Compared with the prior art, the sintering, screening and distributing device provided by the invention can enable the bedding material to contain small finished ore (the granularity is smaller than the primary screening aperture) which cannot be used as the bedding material by the conventional device, effectively utilize a part of return ore (in the original process, the part of small finished ore directly returns to a sintering machine batching system), and reduce the use amount of the original bedding material.
The sintering, screening and distributing method provided by the invention not only improves the screening process, but also improves the distributing process, when distributing, the large bottom paving bin discharges materials firstly, the large bottom paving bin stores large-granularity bottom paving materials (the granularity is between the aperture of the primary screen and the aperture of the secondary screen), and the large-granularity bottom paving materials are equal to the bottom paving materials in the bottom paving bin in the prior art. When the trolley moves to the bottom paving bin, the bottom paving bin starts to discharge materials, the bottom paving bin stores small-granularity bottom paving materials (the granularity is smaller than the primary sieve aperture), the small-granularity bottom paving materials are paved on large-granularity bottom paving materials, and the small-granularity bottom paving materials cannot directly contact with the grate bars of the sintering machine to block the grate bars and cannot directly enter the large flue of the sintering machine. And the small-granularity bedding material firstly contacts with a high-temperature area of the sinter during sintering, so that the sinter with larger granularity is formed, the large granularity of the sinter is increased, and the granularity composition of the sinter is changed because part of the small finished product ore enters the bedding material, so that the quality of the sinter is improved.
Drawings
FIG. 1 is a layout structure diagram of a sintering, screening and distributing device in the prior art;
FIG. 2 is a layout structure diagram of a sintering, screening and distributing device in an embodiment of the invention;
description of reference numerals: a sinter screening system 100; a sintering material distribution system 200; primary screening 1; secondary screening 2; 3, tertiary screening; a blast furnace 4; paving a bottom stock bin 5; a mixing bunker 6; a trolley 7; a crushing device 8; a cooling device 9; a dosing device 10; a mixing device 11; a distributing device 12; an ignition device 13; a large bottoming silo 14.
Detailed Description
In order to make the present application more clearly understood by those skilled in the art to which the present application pertains, the following detailed description of the present application is made with reference to the accompanying drawings by way of specific embodiments.
Example 1:
in the embodiment of the invention, a sintering screening distributing device is obtained by improving an existing sintering screening distributing device, and referring to fig. 2, the existing sintering screening distributing device of the embodiment also comprises a sintering ore screening system and a sintering material distributing system, as with the existing sintering screening distributing device. The sintering ore screening system also comprises the primary screen 1, the secondary screen 2 and the tertiary screen 3; the sintering material distributing system also comprises a bottoming bin 5, a mixing bin 6, a batching device 10, a mixing device 11, a sintering machine (mainly comprising a trolley 7, a distributing device 12 and an ignition device 13), a crushing device 8 for crushing sinter of the sintering machine and a cooling device 9 for cooling the sinter of the sintering machine. In addition, the sintering ore screening system also comprises a large bottom paving bin 14, wherein the large bottom paving bin 14 is arranged beside the bottom paving bin 5, and specifically, the bottom paving bin 5 is positioned between the mixing bin 6 and the large bottom paving bin 14.
The sintering screening and distributing device changes the structural layout of a sintering ore screening system, and referring to fig. 2, a primary screen 1 is arranged above a bottoming bin 5 and a large bottoming bin 14, an undersize material warehouse (not shown in the figure) of the primary screen 1 is communicated with the bottoming bin 5, a chute (not shown in the figure) for conveying oversize materials of the primary screen 1 is arranged beside the primary screen 1, and the chute is communicated with the large bottoming bin 14; the secondary screen 2 is arranged above the tertiary screen 3, and a conveying device (not shown in the figure) for conveying oversize materials of the tertiary screen 3 to the primary screen 1 is arranged beside the tertiary screen 3.
The belt conveyor is preferably selected as the conveying device, the belt conveyor directly feeds the primary screen 1, oversize materials of the primary screen 1 enter the large bottom paving bin 14 through the chute, and undersize materials of the primary screen 1 enter the bottom paving bin 5 through an undersize material bin at the bottom of the primary screen. Compare in current sintering screening distributing device, the feed bin of spreading the end is by the direct feeding of band conveyer, and the sintering screening distributing device of this embodiment has cancelled the band conveyer of the feed bin of spreading the end, and because once sieve 1 shifts out from the screening system, former screening system only contains secondary sieve 2 and cubic sieve 3, and whole fall reduces about 3.9 m.
Sintering ore screening system removes the overall arrangement of three sieve devices and changes, and the respective structural parameter of three sieve devices is with prior art, and in this embodiment, the screen aperture of primary sieve 1 is less than the screen aperture of secondary sieve 2, and the screen aperture of primary sieve 1 is greater than the screen aperture of tertiary sieve 3.
Example 2:
based on the same inventive concept, the embodiment provides a sintering screening material distribution method, which is implemented by relying on the sintering screening material distribution device of the embodiment, and the method of the embodiment is described in detail by taking the conventional parameter configuration of the sintering ore screening system as an example:
in the mineral separation and screening system, the primary screening is 12mm in classification standard (the screen aperture is 12mm), the secondary screening is 18mm in classification standard, and the tertiary screening is 6.3mm in classification standard. The height of the primary sieve is 3.9 m.
A screening process:
the sintered ore of the sintering machine is crushed by a crushing device 8 and cooled by a cooling device 9, and then is directly sieved by a secondary sieve 2 and a tertiary sieve 3, and undersize (granularity is less than or equal to 18mm) of the secondary sieve 2 is used as the incoming material of the tertiary sieve 3.
Undersize (granularity is less than or equal to 6.3mm) of the tertiary screen 3 is sent to a batching system (comprising a batching device 10, a mixing device 11 and a mixing bunker 6 which are communicated in sequence) of the sintering machine; delivering oversize materials (granularity is 6.3 mm-18 mm) of the tertiary sieve 3 and oversize materials (granularity is more than 18mm) of the secondary sieve 2 to a blast furnace 4 by the same belt conveyor, and simultaneously delivering oversize materials (granularity is 6.3 mm-18 mm) of the tertiary sieve 3 to a primary sieve 1; oversize materials (granularity of 12 mm-18 mm) of the primary screen 1 are sent to a large bottom paving bin 14, and undersize materials (granularity of 6.3 mm-12 mm) of the primary screen 1 are sent to a bottom paving bin 5. Thus, the grain size of the bed material in this example is in the range of 6.3mm to 18 mm.
The cloth process comprises the following steps:
during material distribution, the large bottom paving bin 14 discharges materials firstly, large-granularity bottom paving materials (with the granularity of 12-18 mm) of the large bottom paving bin 14 are firstly paved on a trolley 7 of a sintering machine, when the trolley 7 moves to the bottom paving bin 5, the bottom paving bin 5 starts to discharge materials, and small-granularity bottom paving materials (with the granularity of 6.3-12 mm) are paved on the large-granularity bottom paving materials (with the granularity of 12-18 mm).
Referring to fig. 1, in the existing process of the same system parameter configuration of the screening of the sintering ore, after the cooled sintering ore is screened by a primary screen 1, oversize materials (granularity is greater than 12mm) of the primary screen 1 are used as incoming materials of a secondary screen 2, and undersize materials (granularity is less than or equal to 12mm) of the primary screen 1 are used as incoming materials of a tertiary screen 3; oversize materials (granularity is larger than 18mm) of the secondary sieve 2 are sent to the blast furnace 4, undersize materials (granularity is 12 mm-18 mm) of the secondary sieve 2 are partially sent to the blast furnace 4, and partially sent to the bottom paving bin 5; oversize products (with the granularity of 6.3 mm-12 mm) of the tertiary screen 3 are sent to the blast furnace 4, and undersize products (with the granularity of less than or equal to 6.3mm) of the tertiary screen 3 are sent to the batching device 10.
Therefore, in the prior art with the same parameter configuration of the sintering ore screening system, the materials used by the blast furnace 4 are sintering ores with the granularity of more than 12mm, the granularity of the bottom material in the bottom material paving bin 5 is 12 mm-18 mm, and the bottom material with small granularity (the granularity is 6.3 mm-12 mm) is not included.
The particle size distribution of the sintered ore prepared by the method and the prior art is shown in the following table:
| particle size | ～40mm | 40～25mm | 25～16mm | 16～ |
10～5mm | 5～0mm | Average particle diameter |
| Prior Art | 10.22 | 21.56 | 22.44 | 29.03 | 13.53 | 3.23 | 21.58 |
| This application | 12.51 | 26.41 | 23.03 | 21.50 | 14.13 | 2.42 | 23.48 |
| Difference in particle size | 2.30 | 4.85 | 0.59 | -7.52 | 0.60 | -0.81 | 1.89 |
As can be seen from the above table, the sintered ore prepared by the sintering, screening and distributing method provided by the present application has a significantly increased proportion of large-sized particles (more than 16 mm) compared with the prior art, and has an average particle size increased by 1.89mm compared with the prior art.
The sintering screening material distribution system configured for one sintering machine is generally characterized in that two screening systems are used for standby, and the two screening systems run in parallel, so that two primary screens are provided.
Calculated from the operation cost of the primary screen, the prior art requires that two primary screens operate in a whole period, and the motor power of the two primary screens is 220KW (110 KW for a single screen). This application only needs to use a sieve once, and sieves the operating rate once and reduce 30%, and actual motor power is 77 kW. The electricity consumption per hour can be reduced as follows: (220-77) power factor 0.83 price of electricity, can reduce the power consumption per ton ore: (220-77) power factor 0.83 price per watt sintering process effective operating rate 95%/650.
Through the embodiment, the invention has the following beneficial effects or advantages:
1) according to the invention, the bottom paving bin is enlarged, so that the material storage capacity of the sintering machine is increased, the storage capacity of the bottom paving bin is improved, the material circulation time is prolonged, the one-time sieve operation period is shortened, and the power consumption is reduced.
2) The sintering screening material distribution method provided by the invention comprises the steps of firstly paving a large-particle-size bottom material with the particle size of 12-18 mm, then paving a small-particle-size bottom material with the particle size of 6.3-12 mm on the large-particle-size bottom material with the particle size of 12-18 mm, and distributing the small-particle-size bottom material with the particle size of 6.3-12 mm on the large-particle-size bottom material, so that the small-particle-size bottom material with the particle size of 6.3-12 mm cannot directly contact with a grid to block the grid, and cannot directly enter a large flue. And the bedding material with small granularity of 6.3 mm-12 mm firstly contacts the high-temperature area of the sinter, so that the material with larger granularity is easier to form, and the proportion of large granularity of the sinter is increased.
3) The sintering screening distributing device and the method provided by the invention have the advantages that after undersize of the secondary screen is screened by the tertiary screen, oversize of the tertiary screen is used as a bedding material, the granularity range of the obtained bedding material is 6.3-18 mm, the granularity range of the bedding material is enlarged compared with the prior art, and because a part of bedding material with the granularity of 6.3-12 mm enters the bedding material, the granularity composition of sintering ore is changed, and the quality of the sintering ore is improved in a virtuous cycle.
While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all alterations and modifications as fall within the scope of the application.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (10)
1. The utility model provides a sintering screening distributing device, includes the feed bin of paving end of once sieve, secondary sieve, cubic sieve and sintering machine, its characterized in that: the large bottom paving bin is arranged beside the bottom paving bin;
the primary screen is arranged above the bottom paving bin, an undersize material bin of the primary screen is communicated with the bottom paving bin, a chute for conveying oversize materials of the primary screen is arranged beside the primary screen, and the chute is communicated with the large bottom paving bin;
the secondary sieve is arranged above the tertiary sieve, and a conveying device used for conveying oversize materials of the tertiary sieve to the primary sieve is arranged beside the tertiary sieve.
2. The sintering screening method of claim 1, wherein: the screen aperture of the primary screen is smaller than that of the secondary screen, and the screen aperture of the primary screen is larger than that of the tertiary screen.
3. A sintered screening material distribution unit as set forth in claim 1 wherein: the sintering, screening and distributing device further comprises a mixing bin, the mixing bin is arranged beside the bottom paving bin, and the bottom paving bin is positioned between the mixing bin and the large bottom paving bin;
and the mixing bin is communicated with a batching system of the sintering machine.
4. A sintered screening material distribution unit as set forth in claim 3 wherein: the batching system of the sintering machine comprises a batching device and a mixing device, wherein the batching device, the mixing device and the mixing bunker are sequentially communicated.
5. A sintered screening material distribution unit as set forth in claim 1 wherein: the sintering, screening and distributing device further comprises a crushing device for crushing sintered ores of the sintering machine.
6. A sintered screening material distribution unit as set forth in claim 1 wherein: the sintering, screening and distributing device further comprises a cooling device for cooling sintered ores of the sintering machine.
7. A sintered screening material distribution method based on the sintered screening material device of any one of claims 1 to 6, characterized by comprising the following steps:
a screening process:
directly screening the sintered ore of the sintering machine through the secondary screen and the tertiary screen, wherein undersize of the secondary screen is used as incoming materials of the tertiary screen;
conveying undersize of the tertiary screen to a batching system of the sintering machine, conveying oversize of the tertiary screen and oversize of the secondary screen to a blast furnace, and simultaneously conveying oversize of the tertiary screen to the primary screen;
conveying oversize materials of the primary screen to the large bottom paving bin, and conveying undersize materials of the primary screen to the bottom paving bin;
the cloth process comprises the following steps:
during material distribution, the large bottom paving bin discharges materials firstly, large-granularity bottom paving materials of the large bottom paving bin are firstly paved on a trolley of the sintering machine, when the trolley moves to the bottom paving bin, the bottom paving bin starts to discharge materials, and small-granularity bottom paving materials are paved on the large-granularity bottom paving materials.
8. A method of sintering and screening a material as recited in claim 7, wherein: the screen aperture of the primary screen is smaller than that of the secondary screen, and the screen aperture of the primary screen is larger than that of the tertiary screen.
9. A method of sintering and screening a material as recited in claim 7, wherein: and the oversize material of the tertiary screen and the oversize material of the secondary screen are conveyed to the blast furnace through the same conveying device.
10. A method of sintering and screening a material as recited in claim 9, wherein: the conveying device is a belt conveyor.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111534684A (en) * | 2020-06-17 | 2020-08-14 | 攀钢集团研究院有限公司 | Fractional circulating sintering method of limonite |
| CN112880423A (en) * | 2021-01-26 | 2021-06-01 | 广东韶钢松山股份有限公司 | Method for controlling shutdown and startup in sintering machine overhauling process |
| CN114317951A (en) * | 2022-01-14 | 2022-04-12 | 中天钢铁集团(南通)有限公司 | Sintering fixed-area return mine shunting device and method thereof |
| TWI823628B (en) * | 2022-10-17 | 2023-11-21 | 中國鋼鐵股份有限公司 | Control method of sintering machine |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103643038A (en) * | 2013-11-22 | 2014-03-19 | 攀钢集团攀枝花钢钒有限公司 | Paving method for sintering machine's bilayer bedding materials |
| CN204035051U (en) * | 2014-07-30 | 2014-12-24 | 首钢总公司 | A kind of sintering deposit screening and apparatus for distributing |
| CN108680034A (en) * | 2018-04-19 | 2018-10-19 | 芜湖新兴铸管有限责任公司 | The method for generating mixture online using sintering circular-cooler waste heat |
| CN208012378U (en) * | 2018-03-28 | 2018-10-26 | 柳州钢铁股份有限公司 | Pallet grate-layer material grading distributing device |
-
2019
- 2019-09-26 CN CN201910919483.8A patent/CN110749197A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103643038A (en) * | 2013-11-22 | 2014-03-19 | 攀钢集团攀枝花钢钒有限公司 | Paving method for sintering machine's bilayer bedding materials |
| CN204035051U (en) * | 2014-07-30 | 2014-12-24 | 首钢总公司 | A kind of sintering deposit screening and apparatus for distributing |
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