CN212375336U - Multi-vertical-seam sintering and distributing system - Google Patents
Multi-vertical-seam sintering and distributing system Download PDFInfo
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- CN212375336U CN212375336U CN202021628186.2U CN202021628186U CN212375336U CN 212375336 U CN212375336 U CN 212375336U CN 202021628186 U CN202021628186 U CN 202021628186U CN 212375336 U CN212375336 U CN 212375336U
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Abstract
The utility model relates to a multi-vertical-seam sintering material distribution system, which comprises a vibration material distribution device and a sintering material section forming device; the sintering material section forming device consists of a supporting beam and a plurality of vertical blades; the utility model discloses a vibrate the distributing device and cooperate with sintering material section forming device, form vertical many vertical joints that vertically continue, horizontal evenly distributed in sintering mixture stone material process, vertical joint is the ventilative seam by the filling of large granule sintering material, when convulsions sintering, the air on upper strata can pass whole sintering bed downwards from ventilative seam with even amount of wind, and when passing through ventilative seam, permeate to the sintering bed on every side through the clearance between the large granule sintering material; thereby increasing the height direction of the sintering material layer and the integral heating uniformity, ensuring the uniform and rapid sintering process, and being beneficial to realizing the aims of high yield, high quality and low consumption in the sintering production.
Description
Technical Field
The utility model relates to an iron ore sintering technical field especially relates to a many vertical joints sintering cloth system.
Background
Iron ore sintering is one of the main methods for agglomeration of iron ore, and the process is to mix iron ore concentrate obtained by ore dressing of lean iron ore, fine ore generated in the crushing and screening process of rich iron ore, iron-containing powder (blast furnace and converter dust, continuous casting steel rolling iron sheet, etc.) recovered in the production, flux (limestone, quicklime, slaked lime, dolomite, magnesite, etc.) and fuel (coke powder and anthracite) according to the required proportion, add water to mix them to prepare granular sintering mixture, lay it on a sintering trolley, and sinter it into blocks by ignition and air draft.
At present, the most widely used equipment for producing sintered ore is a belt type air draft sintering machine, and the technological process comprises the main procedures of material distribution, ignition, sintering and the like. Wherein, the material distribution refers to the operation of spreading the bottom material and the mixture on a sintering machine trolley. Most of the materials adopt a bedding material process, namely, before the sintered mixture is distributed, a layer of small sintered ore with the granularity of 10-25 mm and the thickness of 20-25 mm is paved as a bedding material, so that the purpose is to protect a grate, reduce the dust removal load, prolong the service life of a fan rotor and reduce or eliminate the adhesion of the grate. After the bottom material is paved, the material is distributed. The air draft sintering process of the strand sintering machine is carried out from top to bottom, the temperature change condition along the height of the material layer can be generally divided into 5 layers, and the reaction change condition in each layer is shown in figure 1. After ignition begins, a sintered ore layer, a combustion layer, a preheating layer, a drying layer and an over-wet layer appear in sequence. The latter four layers then disappear successively, leaving only a sintered ore layer.
The segregation material distribution in the sintering ore material distribution process can improve the air permeability of the material layer, so that the solid fuel is more reasonably distributed along the height direction of the sintering material layer, the sintering process can be uniformly and quickly carried out, the whole sintering process tends to be stable, and the segregation material distribution method has important significance for high yield, high quality and low consumption of sintering production. In the sintering production process, along with the thickening of a sintering material layer, the airflow resistance passing through the material layer is increased, the sintering speed is reduced, the power consumption of a fan in a sintering air box is increased, and the sintering productivity is reduced; therefore, the air permeability of the sinter mix must be improved during sintering of the thick bed.
In order to enhance the air permeability of the sinter bed, increase the temperature of the mixed bed and increase the sintering yield, a material loosening device is commonly adopted at present. The material loosening device has various structural forms, wherein a hollow rod-shaped material loosening device with a blind dead end and a heating hole is commonly applied, such as a material loosening device for distributing materials of a sintering machine, which is disclosed in the Chinese utility model patent with the authorization publication number of CN 203068967U, a material loosening device for drying and preheating, which is disclosed in the Chinese utility model patent with the authorization publication number of CN 201662327U, and the like; the purpose is to improve the looseness of a mixed material layer of a sintering machine trolley and improve the material uniformity of the material layer in the vertical direction. However, the material loosening device has the following disadvantages in loosening the material rods: 1. transverse holes with the same aperture as the loose material rod are left in the mixed material layer when the loose material rod is pulled out, so that the middle part of the material layer is affected to form ore; 2. the air path is short-cut, so that the finished sintered ore has good air permeability, the air quantity flows horizontally through the cavity of the material loosening rod under the action of negative pressure, the loss of the negative pressure is substantial although a certain preheating effect is achieved, the pressure difference of a vertical material layer is reduced, and the combustion speed is slowed down.
Disclosure of Invention
The utility model provides a many vertical joints sintering cloth system adopts the mode of vibrating the cloth, cooperates with the sintering material section forming device that comprises a plurality of vertical blades, forms many vertical joints that vertically continue, horizontal evenly distributed in the sintering mixture stone material process, vertical joint is the ventilative joint by the packing of large granule sintering material, when convulsions sintering, the air on upper strata can pass through whole sintering bed downwards from ventilative joint with even amount of wind, and when passing through ventilative joint, permeate to the sintering bed on every side through the clearance between the large granule sintering material; thereby increasing the height direction of the sintering material layer and the integral heating uniformity, ensuring the uniform and rapid sintering process, and being beneficial to realizing the aims of high yield, high quality and low consumption in the sintering production.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a multi-vertical-seam sintering material distribution system comprises a vibration material distribution device and a sintering material section forming device; the sintering material section forming device consists of a supporting beam and a plurality of vertical blades; the supporting beam is fixedly arranged on a base support of the head of the sintering machine, the arrangement direction of the vertical blades is parallel to the moving direction of the sintering trolley, and the vertical blades are uniformly arranged along the transverse direction of the sintering trolley; the vibrating distributing device is arranged above the sintering section forming device, the upper end material of the vibrating distributing device is connected with the discharge hole of the distributing hopper, and the discharging end of the vibrating distributing device is positioned above the vertical blade; the oscillating distributing device has horizontal oscillating motion along the transverse direction of the sintering trolley.
The vertical blade is vertically provided with 1 to multiple layers.
When the vertical blades are arranged to be more than 2 layers, the vertical blades of each layer are aligned or staggered.
A flow guide grid is arranged above the vertical blade; the flow guide grids are arranged along the transverse direction of the sintering trolley and correspond to the vertical blades one by one, and each flow guide grid is arranged right above the corresponding vertical blade and is positioned on a falling path of the sintering mixture.
The flow guide grid is in a strip shape, and the cross section of the flow guide grid is in a rectangular shape, an oval shape, a wedge shape or a rhombic shape.
The flow guide grids are connected through a frame or a middle connecting plate.
A multi-vertical-seam sintering material distribution system also comprises a microwave heating device; the microwave heating device is fixed on a basic bracket of the head part of the sintering machine through a corresponding mounting bracket; the microwave heating device is connected with the sintering material section forming device and used for heating the vertical blade.
The multi-vertical-seam sintering and distributing system further comprises an atomizing device arranged above the sintering material section forming device; the atomization device is fixed on a basic bracket of the head of the sintering machine through a corresponding mounting bracket.
Compared with the prior art, the beneficial effects of the utility model are that:
1) compared with the material loosening device, the gap formed by the sintering material section forming device of the utility model is filled by large-particle sintering materials, and no cavity is formed in the sintering material layer, thereby avoiding negative pressure loss caused by cavity flow along the material loosening device due to the shortcut of the wind path; can reduce the pressure difference of the vertical material layer and slow down the combustion speed.
2) The utility model discloses a vibrate the distributing device and cooperate with a plurality of vertical blades that set up in the sintering material section forming device, carry out the trajectory of motion swing to the sintering mixture during cloth and vibrate and accelerate, make the large granule sintering material shock and accelerate the back and then the motion gathering of both sides to stop in the both sides of vertical blade, the motion speed of remaining small granule sintering material slows down gradually, finally stops in the middle part region between 2 adjacent vertical blades;
3) when the sintering trolley moves, the paved sintering material layer is separated from the vertical blade, the slit formed by the vertical blade is quickly filled with large-particle sintering materials on two sides, and a low-density accumulation area of the large-particle sintering materials, namely a plurality of ventilation seams filled with the large-particle sintering materials, is formed at the original position of the vertical blade; because the large-particle sintering materials have self-supporting function, the vertical seam can not form a cavity, and a loose structure with a plurality of air-permeable channels is formed;
4) when air is drawn for sintering, the air on the upper layer can downwards penetrate through the whole sintering material layer from the air permeable seam with uniform air quantity, and penetrates into the surrounding sintering material layer through the gaps among large-particle sintering materials while passing through the air permeable seam;
5) by additionally arranging the flow guide grid, direct impact of the sintering mixture on the vertical blade can be prevented, and the service life of the sintering material section forming device is prolonged; meanwhile, the distribution effect of large-particle sintering materials on two sides of the vertical blade can be further enhanced;
6) by additionally arranging the microwave heating device, the sintering mixture can be indirectly heated through the vertical blade, the temperature of a sintering material layer is increased, and meanwhile, the sintering mixture can be prevented from being adhered to the vertical blade;
7) by additionally arranging the atomizing device, the humidifying function on the sintering mixture can be realized, and the sintering mixture is promoted to move to form balls in the material distribution process, so that the vertical seam type material distribution effect is enhanced; meanwhile, the atomization device can also strengthen the heating effect of the microwave heating device.
Drawings
Fig. 1 is a schematic structural diagram of a multi-vertical-seam sintering material distribution system according to the present invention.
Fig. 2 is a view a-a in fig. 1.
Fig. 3 is a partially enlarged view of fig. 2.
Fig. 4 is the oscillating direction schematic diagram of the oscillating distributing device.
Fig. 5 is a side view of the sinter material section forming device of the present invention.
Fig. 6 is a schematic view of the distribution of the vertical blades and the flow-guiding grids along the sintering pallet.
FIG. 7 is a schematic diagram of the movement track of the large-particle sintered material vibrating cloth according to the present invention.
Fig. 8 is a schematic diagram of the movement track of the small-particle sintered material vibrating cloth of the present invention.
In the figure: 1. distributing hopper 2, oscillating distributing device 3, flow guide grid 4, sintering material section forming device 41, support frame 42, vertical blade 5, sintering trolley 6, sintering material layer 61, vertical seam 7, sintering air box 8 and large-particle sintering material
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings:
as shown in fig. 1, the multi-vertical-seam sintering material distribution system of the present invention comprises a vibration material distribution device 2 and a sintered material section forming device 4; the sintering material section forming device 4 consists of a support beam 41 and a plurality of vertical blades 42; the supporting beam 41 is fixedly arranged on a basic bracket of the head part of the sintering machine, the arrangement direction of the vertical blades 42 is parallel to the moving direction of the sintering trolley 5, and the vertical blades 42 are uniformly arranged along the transverse direction of the sintering trolley 5; the oscillating distributing device 2 is arranged above the sintering section forming device 4, an upper material of the oscillating distributing device 2 is connected with a discharge hole of the distributing hopper 1, and a discharging end of the oscillating distributing device 2 is positioned above the vertical blade 42; the oscillating distribution device 2 has a horizontal oscillating movement in the transverse direction of the sintering trolley 5 (as shown in figure 4).
As shown in fig. 5, the vertical blade 42 is vertically provided with 1 to a plurality of stages.
When the vertical blades 42 are arranged in more than 2 layers, the vertical blades 42 in each layer are aligned or staggered.
As shown in fig. 6, a flow guiding grid 3 is arranged above the vertical blade 42; the flow guide grids 3 are arranged along the sintering trolley 5 in a one-to-one correspondence manner with the vertical blades 42, and each flow guide grid 3 is arranged right above the corresponding vertical blade 42 and is positioned on a falling path of the sintering mixture.
The flow guide grid 3 is long-strip-shaped, and the cross section of the flow guide grid is rectangular, oval, wedge-shaped or rhombic.
The flow guide grids 3 are connected through a frame or an intermediate connecting plate.
A multi-vertical-seam sintering material distribution system also comprises a microwave heating device; the microwave heating device is fixed on a basic bracket of the head part of the sintering machine through a corresponding mounting bracket; the microwave heating device is connected with the sintering material section forming device 4 and is used for heating the vertical blade 42.
The multi-vertical-seam sintering and distributing system further comprises an atomizing device arranged above the sintering material section forming device; the atomization device is fixed on a basic bracket of the head of the sintering machine through a corresponding mounting bracket.
The working principle of a multi-vertical-seam sintering material distribution system is as follows: the head part of the sintering machine is provided with a sintering material section forming device 4, and the sintering mixture adopts a vibration material distribution mode (as shown in figure 4), so that large-particle sintering materials 8 are distributed and then attached to two sides of the vertical blades 42, namely a segregation structure is formed between 2 adjacent vertical blades 42; when the vertical blade 42 is pulled out from the paved sinter bed 6 after the sintering trolley 5 moves, the large-particle sinter 8 is filled in the gap formed by the vertical blade 42, so that a plurality of vertical seams 61 (shown in fig. 2) which are longitudinally continuous and transversely and uniformly distributed are formed in the sinter bed 6, and the vertical seams 61 are air-permeable seams (shown in fig. 3) filled with the large-particle sinter 8; when air is drawn for sintering, the air on the upper layer can penetrate through the whole sintering material layer 6 from the air-permeable seams downwards with uniform air quantity, and the air penetrates into the surrounding sintering material layer 6 through gaps among large-particle sintering materials 8 while passing through the air-permeable seams.
As shown in fig. 5, the vertical blade 42 is vertically provided with 1 to multiple layers, and correspondingly, the air permeable seam is a continuous air permeable seam or an intermittent air permeable seam.
The sintering material section forming device 4 is connected with a microwave heating device and used for heating the vertical blade 42, and sintering mixture is prevented from being adhered to the vertical blade 42 while the sintering mixture is indirectly heated.
An atomization device is further arranged above the sintering material section forming device 4, and the sintering mixture is assisted to move into balls through spraying and humidifying.
The utility model matches a plurality of vertical blades 42 arranged in the sintering material section forming device 4 through the oscillation distributing device 2, and the amplitude of the oscillation distributing device 2 is matched with the interval of the vertical blades 42; during material distribution, the movement locus of the sintering mixture is oscillated and accelerated, so that the large-particle sintering materials 8 move and gather to two sides after being oscillated and accelerated, and then stay at two sides of the vertical blades 42 (as shown in fig. 7), the movement speed of the residual small-particle sintering materials is gradually reduced, and finally stay at the middle area between the adjacent 2 vertical blades 42 (as shown in fig. 8).
When the sintering trolley 5 moves, the paved sintering material layer 6 is separated from the vertical blade 42, the slit formed by the vertical blade 42 is rapidly filled with the large-particle sintering materials 8 on the two sides, and a low-density accumulation area of the large-particle sintering materials, namely a plurality of ventilation slits filled with the large-particle sintering materials 8, is formed at the original position of the vertical blade 42; because the large-particle sintered materials 8 have self-supporting function, no cavity is formed at the vertical seam, and a loose structure with a plurality of air-permeable channels is formed (as shown in figures 2 and 3).
During air draft sintering, a plurality of sintering bellows 7 are drafted simultaneously through the fan, and the air above the sinter bed 6 can penetrate through the whole sinter bed 6 downwards from the ventilation seams with uniform air quantity, and penetrates into the sinter bed 6 on the periphery through gaps among large-particle sinter materials 8 while passing through the ventilation seams. Thereby increasing the height direction of the sinter bed 6 and the integral heating uniformity, ensuring the sintering process to be carried out uniformly and quickly, and being beneficial to realizing the aims of high yield, high quality and low consumption in sintering production.
By additionally arranging the flow guide grid 3, the direct impact of the sintering mixture on the vertical blade 42 can be prevented, and the service life of the sintering material section forming device 4 is prolonged; meanwhile, the distribution effect of the large-particle sintering materials 8 on the two sides of the vertical blade 42 can be further enhanced.
By additionally arranging the microwave heating device, the sintering mixture can be indirectly heated through the vertical blade 42, the temperature of the sinter bed 6 is increased, and meanwhile, the sintering mixture can be prevented from being adhered to the vertical blade 42;
by additionally arranging the atomizing device, the humidifying function on the sintering mixture can be realized, and the sintering mixture is promoted to move to form balls in the material distribution process, so that the vertical seam type material distribution effect is enhanced; meanwhile, the atomization device can also strengthen the heating effect of the microwave heating device.
Microwave heating device, atomizing device all adopt the conventional finished product on the market, and it is prior art, and concrete structure and theory of operation are not added here and are repeated.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (8)
1. A multi-vertical-seam sintering material distribution system is characterized by comprising a vibration material distribution device and a sintering material section forming device; the sintering material section forming device consists of a supporting beam and a plurality of vertical blades; the supporting beam is fixedly arranged on a base support of the head of the sintering machine, the arrangement direction of the vertical blades is parallel to the moving direction of the sintering trolley, and the vertical blades are uniformly arranged along the transverse direction of the sintering trolley; the vibrating distributing device is arranged above the sintering section forming device, the upper end material of the vibrating distributing device is connected with the discharge hole of the distributing hopper, and the discharging end of the vibrating distributing device is positioned above the vertical blade; the oscillating distributing device has horizontal oscillating motion along the transverse direction of the sintering trolley.
2. The multiple standing seam sintered material distribution system as claimed in claim 1, wherein said vertical blades are vertically provided with 1 to multiple layers.
3. The multi-vertical-seam sintering material distribution system according to claim 2, wherein when the vertical blades are arranged in 2 layers or more, the vertical blades of each layer are aligned or staggered.
4. The multi-vertical-seam sintering material distribution system according to claim 1, 2 or 3, wherein a flow guiding grid is arranged above the vertical blade; the flow guide grids are arranged along the transverse direction of the sintering trolley and correspond to the vertical blades one by one, and each flow guide grid is arranged right above the corresponding vertical blade and is positioned on a falling path of the sintering mixture.
5. The multi-vertical-seam sintering material distribution system according to claim 4, wherein the flow-guiding grid is long and has a rectangular, oval, wedge-shaped or diamond-shaped cross section.
6. The multi-vertical-seam sintering material distribution system as claimed in claim 4, wherein the flow-guiding grids are connected through a frame or an intermediate connecting plate.
7. The multiple-standing-seam sintering material distribution system according to claim 1, further comprising a microwave heating device; the microwave heating device is fixed on a basic bracket of the head part of the sintering machine through a corresponding mounting bracket; the microwave heating device is connected with the sintering material section forming device and used for heating the vertical blade.
8. The multi-vertical-seam sintering material distribution system according to claim 1, further comprising an atomization device arranged above the sintering material section forming device; the atomization device is fixed on a basic bracket of the head of the sintering machine through a corresponding mounting bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021628186.2U CN212375336U (en) | 2020-08-07 | 2020-08-07 | Multi-vertical-seam sintering and distributing system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021628186.2U CN212375336U (en) | 2020-08-07 | 2020-08-07 | Multi-vertical-seam sintering and distributing system |
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| CN212375336U true CN212375336U (en) | 2021-01-19 |
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| CN202021628186.2U Active CN212375336U (en) | 2020-08-07 | 2020-08-07 | Multi-vertical-seam sintering and distributing system |
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