CN114558779A - Whole grain screening plant and whole grain screening system - Google Patents
Whole grain screening plant and whole grain screening system Download PDFInfo
- Publication number
- CN114558779A CN114558779A CN202210204575.XA CN202210204575A CN114558779A CN 114558779 A CN114558779 A CN 114558779A CN 202210204575 A CN202210204575 A CN 202210204575A CN 114558779 A CN114558779 A CN 114558779A
- Authority
- CN
- China
- Prior art keywords
- box body
- whole grain
- bin
- air
- air inlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000012216 screening Methods 0.000 title claims abstract description 74
- 235000020985 whole grains Nutrition 0.000 title claims abstract description 42
- 238000005245 sintering Methods 0.000 claims abstract description 52
- 239000000463 material Substances 0.000 claims abstract description 33
- 239000002245 particle Substances 0.000 claims description 82
- 239000000428 dust Substances 0.000 claims description 58
- 235000013339 cereals Nutrition 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 5
- 238000000605 extraction Methods 0.000 claims 3
- 238000007599 discharging Methods 0.000 abstract description 13
- 239000000203 mixture Substances 0.000 abstract description 7
- 238000012423 maintenance Methods 0.000 abstract description 5
- 239000008187 granular material Substances 0.000 description 14
- 238000007873 sieving Methods 0.000 description 14
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 239000002994 raw material Substances 0.000 description 6
- 238000005265 energy consumption Methods 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000003723 Smelting Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 239000000571 coke Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 235000019738 Limestone Nutrition 0.000 description 1
- RHZUVFJBSILHOK-UHFFFAOYSA-N anthracen-1-ylmethanolate Chemical compound C1=CC=C2C=C3C(C[O-])=CC=CC3=CC2=C1 RHZUVFJBSILHOK-UHFFFAOYSA-N 0.000 description 1
- 239000003830 anthracite Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B7/00—Selective separation of solid materials carried by, or dispersed in, gas currents
- B07B7/01—Selective separation of solid materials carried by, or dispersed in, gas currents using gravity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B11/00—Arrangement of accessories in apparatus for separating solids from solids using gas currents
- B07B11/02—Arrangement of air or material conditioning accessories
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B11/00—Arrangement of accessories in apparatus for separating solids from solids using gas currents
- B07B11/06—Feeding or discharging arrangements
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention belongs to the technical field of metallurgical engineering and discloses a whole grain screening device and a whole grain screening system. The box body comprises a screening inner cavity, a feeding hole, an air inlet, a discharging hole and an air outlet are formed in the box body and communicated with the screening inner cavity, the feeding hole is formed in the top of the box body, the air inlet is close to the feeding hole and formed in the side face of the box body, the discharging hole is formed in the bottom of the box body, and a plurality of discharging holes are formed in the box body; the material guide piece penetrates through the material inlet and extends into the screening inner cavity, and the material guide piece is inclined downwards towards the direction of the air inlet; the material baffle is rotationally connected with the box body and is arranged between two adjacent discharge ports; the air supply assembly is communicated with the air inlet and is used for supplying air to the screening inner cavity through the air inlet. This whole grain screening plant can adjust the granularity composition of the sintering deposit of screening out through the inclination of the air supply volume and the striker plate of adjusting the air supply subassembly, and the maintenance is simple, and the power consumption is few.
Description
Technical Field
The invention relates to the technical field of metallurgical engineering, in particular to a whole grain screening device and a whole grain screening system.
Background
The sintering is an important link in the steel smelting production process, which is to mix iron ore powder, return ore powder (fine sintered ore with a specified particle size smaller than that for a blast furnace produced in the sintering process), fuel (coke, anthracite and the like) and limestone according to a certain proportion, then lay the mixture on a trolley of a sintering machine, ignite and exhaust air for sintering to form a sintered cake, and the sintered cake is crushed, cooled and granulated to form the sintered ore with enough strength and particle size. The sintered ore can be used as the clinker for iron making, and the iron making by using the sintered clinker can improve the utilization coefficient of the blast furnace, reduce the coke ratio and improve the air permeability of the blast furnace, thereby ensuring the stable operation of the blast furnace.
The current granulating process of domestic large sintering machines mainly adopts a plurality of vibrating screens to sieve broken sinter cakes into four types of sinter with granularity sections: directly sending sintered ore with the granularity of more than 16mm to a blast furnace for iron making; the sintered ore with the granularity of 10-16mm is firstly sent to a bottom paving bin at the head of a sintering machine for sintering bottom paving materials, and then is continuously sent to a blast furnace after the bottom paving bin reaches a high material level; the sintered ore with the granularity of 5-10mm is also sent to a blast furnace; and the ore with the granularity of less than 5mm is called return fines and returns to the proportioning bins.
However, the traditional vibrating screen belongs to mechanical equipment, the crushed sintered cake passes through a screen surface with holes to distinguish particles with different particle sizes, the particle size distinction is completely dependent on the size of the screen hole, the particle size of each ore after the whole grain can not be changed in the production process, the maintenance cost and the maintenance amount after the screen plate is abraded are also larger, and meanwhile, the plurality of vibrating screens are linked, the power of a transmission motor is large, and the power consumption is high.
Disclosure of Invention
An object of the present invention is to provide a whole grain screening apparatus which can adjust the grain size composition of a screened sinter, and which is easy to maintain and consumes less energy.
In order to achieve the purpose, the invention adopts the following technical scheme:
a whole granule screening device comprising:
the box body comprises a screening inner cavity, a feed inlet, an air inlet, a discharge outlet and an air outlet which are communicated with the screening inner cavity are formed in the box body, the feed inlet is formed in the top of the box body, the air inlet is close to the feed inlet and is formed in the side face of the box body, the discharge outlet is formed in the bottom of the box body, and a plurality of discharge outlets are formed in the box body;
the material guide piece penetrates through the feeding hole and extends into the screening inner cavity, and the material guide piece is inclined downwards towards the air inlet;
the material baffle is rotationally connected to the box body and arranged between two adjacent discharge ports;
and the air supply assembly is communicated with the air inlet and is used for supplying air to the screening inner cavity through the air inlet.
Optionally, the air outlet with the air intake sets up relatively, the striker plate is provided with a plurality ofly, and is a plurality of the striker plate is followed the air intake to the direction interval of air outlet connects in the bottom of box.
Optionally, the striker plate is provided with two, two the striker plate will the bottom of screening inner chamber is followed the air intake to the direction of air outlet separates in proper order for large granule storehouse, well granule storehouse and tiny particle storehouse, the large granule storehouse well granule storehouse with the bottom in tiny particle storehouse has all been seted up the discharge gate.
Optionally, a particle size detection piece is arranged at the discharge port.
Optionally, the screening device further comprises a dust removal assembly, the dust removal assembly is communicated with the screening inner cavity through the air outlet, and the dust removal assembly is communicated with the air supply assembly.
Optionally, the dust removal assembly comprises a cyclone dust collector, an air inlet pipe of the cyclone dust collector is communicated with the air outlet, and an air outlet pipe of the cyclone dust collector is communicated with the air supply assembly.
Optionally, the dust removal assembly further comprises a dust storage bin, and the dust storage bin is communicated with the cyclone dust collector and is used for storing dust absorbed in the cyclone dust collector.
Optionally, the bottom of dust storage storehouse is provided with the opening, first unloading spare is installed to the opening part.
Optionally, a second discharging piece is arranged at the discharging opening.
Another object of the present invention is to provide a whole grain screening system which can adjust the particle size of the screened sinter and which is easy to maintain and consumes less energy.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a whole grain screening system, includes batching subassembly, sintering machine, breaker and cooler, still includes foretell whole grain screening plant, the batching subassembly with the feeding storehouse intercommunication of sintering machine, the discharge end of sintering machine is connected the breaker, the export of breaker with the material loading end intercommunication of cooler, the unloading end of cooler with guide intercommunication, the discharge gate be configured into with the blast furnace batching subassembly the batching storehouse with the storehouse intercommunication of paving the end of sintering machine.
The invention has the beneficial effects that:
according to the whole grain screening device provided by the invention, the screening inner cavity of the box body is used for providing space for screening the sintering ore. The feeding hole is arranged at the top of the box body and used for inputting sintering ores; the air inlet is close to the feed inlet and arranged on the side face of the box body so as to supply air to the screening inner cavity through the air inlet and carry out air separation on the sinter flowing in from the feed inlet. The material guide piece penetrates through the material inlet, extends into the screening inner cavity and inclines downwards towards the direction of the air inlet. That is to say, when the sintering ore flows into the screening inner cavity through the material guiding part, due to the inclination of the material guiding part, the sintering ore with large granularity is closer to the air inlet than the sintering ore with small granularity, and the sintering ore is simply sorted in advance, so that the subsequent screening effect is improved. The bottom of the box body is provided with a plurality of discharge ports, in the screening process, the air supply assembly supplies air to the screening inner cavity through the air inlet, and as the falling speed of the sintered ore with large granularity is fast, the more the sintered ore with smaller granularity floats, the granularity of the sintered ore flowing out from the discharge port nearest to the air inlet is the largest, and the granularity of the sintered ore flowing out from the discharge port farther away from the air inlet is the smaller. The wind power is utilized to sieve the sintering ore, the energy consumption is low, and the sieve plate does not need to be maintained. Meanwhile, the material baffle is rotatably connected between two adjacent discharge holes. Through the angle of adjusting the striker plate and the amount of wind size of air supply subassembly, can also adjust the granularity composition of the sintering deposit that flows out from the discharge gate department to obtain the sintering deposit of target composition.
According to the whole grain screening system provided by the invention, the batching component is communicated with the feeding bin of the sintering machine so as to add sintering raw materials to the sintering machine; sintering cakes formed after sintering of the sintering machine enter the crusher from the discharge end; the crusher crushes the sintered cake; cooling the crushed sintered cake in a cooler; the cooled sintered cake flows into the whole grain screening device through the material guiding part to be screened; and respectively conveying the screened sintering ore with various granularity to the blast furnace, the proportioning bin of the proportioning component and the bottom paving bin of the sintering machine. The whole grain screening system can adjust the granularity of the screened sintering ore, and is simple to maintain and low in energy consumption.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a whole granule screening device provided in an embodiment of the invention;
fig. 2 is a schematic structural diagram of a whole granule screening system provided by the first embodiment of the invention.
In the figure:
100. a dosing assembly; 101. a proportioning bin;
200. sintering machine; 201. paving a bottom stock bin;
300. a crusher;
400. a cooling machine;
500. a whole grain screening device; 51. a box body; 511. screening the inner cavity; 5111. a large particle bin; 5112. a middle particle bin; 5113. a granule bin; 512. a feed inlet; 513. an air inlet; 514. a discharge port; 515. an air outlet; 52. a material guide member; 53. a striker plate; 54. an air supply assembly; 55. a dust removal assembly; 551. a cyclone dust collector; 552. a dust storage bin; 553. a first discharge member; 56. a particle size detection unit; 57. a second discharge member.
Detailed Description
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that are conventionally placed when the products of the present invention are used, and are used only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements to be referred to must have specific orientations, be constructed in specific orientations, and operate, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; either mechanically or electrically. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
Example one
In the steel smelting process, the sintering process is an important link, and the whole grain process in the sintering process influences the strength of the finished sintered ore. As shown in fig. 1, the present embodiment provides a whole grain sieving device 500 for sieving whole grains of crushed and cooled sinter, and specifically, the whole grain sieving device 500 includes a box 51, a guide member 52, a baffle plate 53, and an air blowing assembly 54.
Wherein the sieving inner chamber 511 of the box body 51 is used for providing a space for sieving the sintering ore. The feed inlet 512 is arranged at the top of the box body 51 and used for inputting sintering ores; the air inlet 513 is disposed near the feeding port 512 and at a side of the box 51, so as to supply air to the sieving chamber 511 through the air inlet 513, thereby performing air separation on the sintered ore flowing from the feeding port 512. The material guiding member 52 penetrates the material inlet 512, extends into the sieving chamber 511, and is inclined downwards towards the air inlet 513. That is to say, when the sintered ore flows into the sieving inner cavity 511 through the material guiding member 52, due to the tilting action of the material guiding member 52, the sintered ore with a large particle size is closer to the air inlet 513 than the sintered ore with a small particle size, and the sintered ore is simply sorted in advance, so that the subsequent sieving effect is improved. The bottom of the box 51 is provided with a plurality of discharge ports 514, and during the screening process, the air supply assembly 54 supplies air into the screening inner cavity 511 through the air inlet 513, and as the falling speed of the sinter with large particle size is fast and the drift of the sinter with smaller particle size is farther, the particle size of the sinter flowing out from the discharge port 514 nearest to the air inlet 513 is the largest, and the particle size of the sinter flowing out from the discharge port 514 farther from the air inlet 513 is smaller. The sintered ore is screened by wind power, the energy consumption is low, and the sieve plate is not required to be maintained. Meanwhile, the material baffle 53 is rotatably connected between two adjacent discharge holes 514. By adjusting the angle of the material baffle plate 53 and the air volume of the air supply assembly 54, the grain size composition of the sintered ore flowing out from the discharge port 514 can be adjusted, so that the sintered ore with the target component composition is obtained.
Preferably, the inclination angle of the material guiding member 52 is 30-45 °, which effectively prevents the sintered ore from flowing too fast due to the too large inclination angle of the material guiding member 52, and further, the wind screening effect is not affected.
Optionally, with continued reference to fig. 1, the air outlet 515 is disposed opposite to the air inlet 513, a plurality of baffle plates 53 are disposed, and the plurality of baffle plates 53 are connected to the bottom of the box 51 at intervals along the direction from the air inlet 513 to the air outlet 515. That is, the striker plate 53 partitions the bottom of the magazine 51 into a plurality of storage spaces. Under the action of wind power, the crushed sintering ores fall into different storage spaces respectively due to different particle sizes, and then the sintering ores with different particle sizes are subjected to whole-grain screening.
Preferably, in the embodiment, as shown in fig. 1, two material blocking plates 53 are provided, and the two material blocking plates 53 divide the bottom of the sieving inner cavity 511 into a large particle bin 5111, a medium particle bin 5112 and a small particle bin 5113 in sequence from the air inlet 513 to the air outlet 515. When the sintered ore flows into the sieving inner cavity 511 from the material guide member 52, the air supply assembly 54 supplies air, and by applying the principle that the small particles are blown far and the large particles are blown close, the sintered ore with the large particles falls into the large particle bin 5111 closest to the air inlet 513, the sintered ore with the medium particles falls into the medium particle bin 5112, and the sintered ore with the small particles falls into the small particle bin 5113 farthest from the air inlet 513. Discharge holes 514 are formed in the bottoms of the large particle bin 5111, the middle particle bin 5112 and the small particle bin 5113, and sintered ore in the large particle bin 5111 can be directly conveyed to a blast furnace for ironmaking; part of the sintered ore in the medium particle bin 5112 is sent to a bottom paving bin of the sintering machine for paving bottom materials, and the rest can be directly sent to the blast furnace; the sintered ore in the small particle bin 5113 is returned to the raw material bin, and is continuously mixed with other raw materials, and then is sintered again. Of course, in other embodiments, the number of the striker plates 53 may be set according to actual requirements, and is not limited herein.
Specifically, with continued reference to fig. 1, the striker plate 53 between the large particle bin 5111 and the medium particle bin 5112 is taken as an example. The striker plate 53 is rotationally connected to the box body 51 through a rotating shaft, the striker plate 53 can rotate around the rotating shaft, the right side of the striker plate 53 is a large particle bin 5111, and the left side of the striker plate is a medium particle bin 5112. When the striker plate 53 rotates clockwise, the entrance of the large particle bin 5111 becomes smaller, the entrance of the medium particle bin 5112 becomes larger, the particle size of the sintered ore falling into the large particle bin 5111 is the largest, and a part of the sintered ore with larger particle size which should fall into the large particle bin 5111 falls into the medium particle bin 5112, so that the average particle size of the sintered ore in the medium particle bin 5112 is increased; when the striker plate 53 rotates counterclockwise, the entrance of the large granule chamber 5111 becomes large, the entrance of the medium granule chamber 5112 becomes small, and a part of the small-sized sintered ore that should fall into the medium granule chamber 5112 falls into the large granule chamber 5111, so that the amount of the sintered ore that falls into the medium granule chamber 5112 is reduced, and the average particle size is reduced.
More specifically, in this embodiment, the whole grain sieving device 500 further includes a driving member, and a swing arm is further connected to the rotating shaft, and the swing arm is disposed outside the box 51 and connected to an output end of the driving member. Illustratively, the drive member may be selected to be a hydraulic ram or an electric motor. The output drive swing arm of driving piece is rotatory, and the swing arm drives the pivot rotation, and then drives striker plate 53 and rotates.
Optionally, as shown in fig. 1, a particle size detector 56 is disposed at the discharge port 514 to detect the particle size of the sintered ore flowing out of the discharge port 514. It is understood that in this embodiment, since the sintered ore in the large particle bin 5111 has the largest particle size and is directly sent to the blast furnace, the particle size detection is not required, and the particle size detecting member 56 may not be installed at the discharge port 514 of the large particle bin 5111. The particle size detection pieces 56 are additionally arranged at the discharge holes 514 of the middle particle bin 5112 and the small particle bin 5113, and the rotating angle of the striker plate 53 is adjusted according to the detected particle size, so that the average particle size of the sintered ore in the middle particle bin 5112 and the small particle bin 5113 is changed. Illustratively, the particle size detector 56 may be selected as a laser particle sizer, which is accurate, fast, and efficient.
Optionally, as shown in fig. 1, a second discharging member 57 is disposed at the discharging port 514 for discharging the sieved sintered ore. In this embodiment, the sintered ore in the large particle bin 5111 is directly used for blast furnace ironmaking; part of the sintered ore in the medium particle bin 5112 is used for laying bed charge, and the rest of the sintered ore is also sent to a blast furnace for ironmaking, so the sintered ore in the large particle bin 5111 and the medium particle bin 5112 can be directly used after being screened, and storage and discharge are not needed, that is, the discharge port 514 of the large particle bin 5111 and the medium particle bin 5112 is not needed to be provided with a second discharge piece 57. Because the particle size of the sintered ore in the small particle bin 5113 is small and the sintered ore needs to be returned to the raw material bin as return ore, the second discharging piece 57 is arranged at the discharge port 514 of the small particle bin 5113, and when the sintered ore in the small particle bin 5113 is stored to a certain amount, the sintered ore is discharged once through the second discharging piece 57 and is returned to the raw material bin uniformly to be used for mixing the sintered ore continuously.
Optionally, as shown in fig. 1, the whole grain screening device 500 further comprises a dust removal assembly 55 for removing dust from the sinter. The dust removal assembly 55 is communicated with the screening inner cavity 511 through an air outlet 515, and the dust removal assembly 55 is also communicated with the air supply assembly 54. That is to say, the dust-carrying air enters the dust removal assembly 55 from the air outlet 515 of the sieving inner cavity 511, and after dust removal processing, the fresh air without impurities is sent to the air supply assembly 54 again to continue to be used for wind power sieving. The wind power can be recycled, which is beneficial to reducing energy consumption. Specifically, in the present embodiment, the dust removing assembly 55 includes a cyclone 551, an air inlet pipe of the cyclone 551 is communicated with the air outlet 515, and an air outlet pipe of the cyclone 551 is communicated with the air supply assembly 54. The cyclone dust collector 551 is a dust collector which makes the dust-containing airflow rotate, separates and collects the dust particles from the airflow by means of centrifugal force, and makes the dust particles fall into an ash bucket by means of gravity, and has the advantages of simple structure, easy manufacture, installation, maintenance and management, and high dust collection efficiency.
Optionally, with continued reference to fig. 1, the dust removal assembly 55 further comprises a dust storage bin 552, the dust storage bin 552 in communication with the cyclone 551 for storing dust absorbed in the cyclone 551. Specifically, an opening is formed at the bottom of the dust storage bin 552, a first discharging member 553 is installed at the opening, and when the dust in the dust storage bin 552 is stored to a certain amount, the accumulated dust is discharged through one discharging by the first discharging member 553.
Optionally, in the present embodiment, the air supply assembly 54 includes a blower, and an air outlet of the blower is communicated with the air inlet 513 to supply air to the inner cavity of the box 51.
The embodiment also provides a whole grain screening system, and it can adjust the granularity of the sintering deposit of screening out, and the maintenance is simple, and the power consumption is few. Specifically, as shown in fig. 2, the whole grain screening system includes the batching assembly 100, the sintering machine 200, the crusher 300, and the cooler 400, and further includes the whole grain screening device 500 described above.
Wherein, the batching assembly 100 is communicated with a feeding bin of the sintering machine 200 to add sintering raw materials to the sintering machine 200; sintering cakes formed after sintering of the sintering machine 200 enter the crusher 300 from the discharge end; the crusher 300 crushes the sintered cake; the crushed sintered cake enters a cooling machine 400 for cooling; the cooled sintered cake flows into the whole grain screening device 500 through the material guiding part 52 for screening; the screened sintered ore with various particle sizes flows out from the discharge port 514 and is respectively conveyed to the blast furnace, the proportioning bin 101 of the proportioning component 100 and the bottom paving bin 201 of the sintering machine 200. The whole grain screening system can adjust the granularity of the screened sintering ore, and is simple to maintain and low in energy consumption.
Example two
The present embodiment provides a whole granule screening device, and the difference between the present embodiment and the first embodiment is that, in the present embodiment, the dust removing assembly 55 includes a suction fan, a dust remover, and a dust storage bin 552. The suction fan is communicated with the air outlet 515 of the box body 51 through the dust remover, and when the suction fan sucks air in the screening inner cavity 511 out, the air carrying dust firstly passes through the dust remover to remove dust and then is discharged by the suction fan. The dust storage bin 552 communicates with the dust remover for storing dust absorbed in the dust remover.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. A whole grain screening device, characterized by comprising:
the box body (51) comprises a screening inner cavity (511), a feed inlet (512), an air inlet (513), a discharge outlet (514) and an air outlet (515) which are communicated with the screening inner cavity (511) are formed in the box body (51), the feed inlet (512) is formed in the top of the box body (51), the air inlet (513) is close to the feed inlet (512) and is formed in the side face of the box body (51), the discharge outlet (514) is formed in the bottom of the box body (51), and a plurality of discharge outlets (514) are formed in the box body (51);
the material guide piece (52) penetrates through the feeding hole (512) and extends into the screening inner cavity (511), and the material guide piece (52) inclines downwards towards the position of the air inlet (513);
the material baffle plate (53) is rotatably connected to the box body (51) and is arranged between two adjacent discharge holes (514);
and the air supply assembly (54) is communicated with the air inlet (513) and is used for supplying air to the screening inner cavity (511) through the air inlet (513).
2. The whole grain screening device according to claim 1, characterized in that the air outlet (515) is arranged opposite to the air inlet (513), the baffle plates (53) are arranged in a plurality, and the baffle plates (53) are connected to the bottom of the box body (51) at intervals along the direction from the air inlet (513) to the air outlet (515).
3. The whole grain screening device according to claim 2, characterized in that the two striker plates (53) divide the bottom of the screening inner cavity (511) into a large grain bin (5111), a medium grain bin (5112) and a small grain bin (5113) in sequence along the direction from the air inlet (513) to the air outlet (515), and the discharge holes (514) are formed in the bottoms of the large grain bin (5111), the medium grain bin (5112) and the small grain bin (5113).
4. A whole grain screening device according to claim 1, characterised in that a particle size detection piece (56) is provided at the discharge opening (514).
5. A whole grain screening device according to claim 1, characterized in that it also comprises a dust extraction assembly (55), said dust extraction assembly (55) communicating with said screening chamber (511) through said air outlet (515), said dust extraction assembly (55) communicating with said air supply assembly (54).
6. A whole grain screening device according to claim 5, characterised in that the dust removal assembly (55) comprises a cyclone (551), the air inlet duct of the cyclone (551) communicating with the air outlet (515), the air outlet duct of the cyclone (551) communicating with the air supply assembly (54).
7. The whole grain screening device according to claim 6, characterized in that the dust removal assembly (55) further comprises a dust storage bin (552), the dust storage bin (552) being in communication with the cyclone (551) for storing dust absorbed in the cyclone (551).
8. A whole grain screening device according to claim 7, characterised in that the bottom of the dust storage bin (552) is provided with an opening, where a first discharge piece (553) is mounted.
9. A whole grain screening device according to claim 1, characterised in that a second discharge (57) is provided at the discharge opening (514).
10. A whole grain screening system comprising a batching assembly (100), a sintering machine (200), a crusher (300) and a cooler (400), characterized in that it further comprises a whole grain screening device according to any one of claims 1 to 9, the batching assembly (100) being in communication with a feeding bin of the sintering machine (200), a discharge end of the sintering machine (200) being connected to the crusher (300), an outlet of the crusher (300) being in communication with a feeding end of the cooler (400), a discharge end of the cooler (400) being in communication with the guide (52), the discharge outlet (514) being configured to be in communication with a blast furnace, a batching bin (101) of the batching assembly (100) and a bottoming bin (201) of the sintering machine (200).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210204575.XA CN114558779A (en) | 2022-03-03 | 2022-03-03 | Whole grain screening plant and whole grain screening system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210204575.XA CN114558779A (en) | 2022-03-03 | 2022-03-03 | Whole grain screening plant and whole grain screening system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114558779A true CN114558779A (en) | 2022-05-31 |
Family
ID=81717824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210204575.XA Pending CN114558779A (en) | 2022-03-03 | 2022-03-03 | Whole grain screening plant and whole grain screening system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114558779A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007247016A (en) * | 2006-03-17 | 2007-09-27 | Jfe Steel Kk | Crushing apparatus for sintered ore and method for particle size regulation of sintered ore using same |
| CN103344114A (en) * | 2013-05-08 | 2013-10-09 | 宁波钢铁有限公司 | Novel energy-saving emission-reduction sintering machine system and sintering method |
| CN203737591U (en) * | 2014-03-13 | 2014-07-30 | 福建南方路面机械有限公司 | Sand winnowing equipment |
| US20170349484A1 (en) * | 2014-09-19 | 2017-12-07 | Roth do Brasil Indústria, Comércio e Serviços Ltda | Process and system for eliminating the potential for ld and eaf steel slag expansion |
| CN109338100A (en) * | 2018-11-29 | 2019-02-15 | 武汉钢铁有限公司 | Make the grate-layer material whole grain method of grate-layer material based on pellet |
| CN209452284U (en) * | 2018-12-27 | 2019-10-01 | 北京东方雨虹防水工程有限公司 | Airflow screen |
| CN111100983A (en) * | 2020-01-11 | 2020-05-05 | 武钢集团昆明钢铁股份有限公司 | Low-carbon, environment-friendly and efficient sintering method for fractional addition of sintering fuel |
| CN212216260U (en) * | 2020-03-27 | 2020-12-25 | 山东中科博源新材料科技有限公司 | Pneumatic classifying screen device for super absorbent resin |
| CN212619809U (en) * | 2020-07-24 | 2021-02-26 | 宁夏筑丰源新型建材有限公司 | Wet sand processing device for dry-mixed mortar |
-
2022
- 2022-03-03 CN CN202210204575.XA patent/CN114558779A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007247016A (en) * | 2006-03-17 | 2007-09-27 | Jfe Steel Kk | Crushing apparatus for sintered ore and method for particle size regulation of sintered ore using same |
| CN103344114A (en) * | 2013-05-08 | 2013-10-09 | 宁波钢铁有限公司 | Novel energy-saving emission-reduction sintering machine system and sintering method |
| CN203737591U (en) * | 2014-03-13 | 2014-07-30 | 福建南方路面机械有限公司 | Sand winnowing equipment |
| US20170349484A1 (en) * | 2014-09-19 | 2017-12-07 | Roth do Brasil Indústria, Comércio e Serviços Ltda | Process and system for eliminating the potential for ld and eaf steel slag expansion |
| CN109338100A (en) * | 2018-11-29 | 2019-02-15 | 武汉钢铁有限公司 | Make the grate-layer material whole grain method of grate-layer material based on pellet |
| CN209452284U (en) * | 2018-12-27 | 2019-10-01 | 北京东方雨虹防水工程有限公司 | Airflow screen |
| CN111100983A (en) * | 2020-01-11 | 2020-05-05 | 武钢集团昆明钢铁股份有限公司 | Low-carbon, environment-friendly and efficient sintering method for fractional addition of sintering fuel |
| CN212216260U (en) * | 2020-03-27 | 2020-12-25 | 山东中科博源新材料科技有限公司 | Pneumatic classifying screen device for super absorbent resin |
| CN212619809U (en) * | 2020-07-24 | 2021-02-26 | 宁夏筑丰源新型建材有限公司 | Wet sand processing device for dry-mixed mortar |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203355840U (en) | Production line for manufacturing sand through ball-milling | |
| CN218250708U (en) | Grinding system | |
| CN111617965B (en) | Powder removing and sedimentation integrated machine | |
| CN106669888A (en) | Efficient roller pressing grinding station and technique thereof | |
| CN103949322A (en) | Nickel slag grinding system and production process thereof | |
| CN215878794U (en) | Novel powder selecting device | |
| CN210773373U (en) | Horizontal cement clinker grate type particle grading cooler | |
| CN114558779A (en) | Whole grain screening plant and whole grain screening system | |
| CN217411512U (en) | Dry grinding and dry separation system for iron-containing slag powder of steel slag | |
| CN113953062B (en) | Self-sorting ball milling system for grinding superfine materials | |
| CN212263510U (en) | Static double-grading powder concentrator and semi-final pre-grinding system | |
| CN110715547B (en) | Horizontal cement clinker grate type particle grading cooler and cooling method | |
| CN104399667B (en) | Stainless steel slag sorting device and stainless steel slag sorting method | |
| CN214439852U (en) | Host base discharging internal and external compound grading flour mill | |
| CN211026746U (en) | Controllable aggregate powder removing device and dry-mixed mortar production system | |
| JP3089243B1 (en) | Cement clinker grinding equipment | |
| JP3036669B2 (en) | Crushing equipment | |
| CN114871236B (en) | System and method for grinding superfine powder by fine steel slag tailings roller | |
| CN220610737U (en) | Spodumene powder preparation system | |
| CN220861666U (en) | Cement clinker crushing production line | |
| CN111361000B (en) | Dry powder making device and method adopting roller press for milling | |
| CN217313784U (en) | Three-section crushing and screening device for electric melting chromium oxide | |
| CN211964510U (en) | Circulation screening raw material grinds system | |
| CN217747317U (en) | Slag micro powder grinding and screening device based on hot air drying | |
| CN219913038U (en) | Feeding device of circulating fluidized bed boiler |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220531 |
|
| RJ01 | Rejection of invention patent application after publication |