CN215197534U - Air current sorter - Google Patents
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- CN215197534U CN215197534U CN202120659197.5U CN202120659197U CN215197534U CN 215197534 U CN215197534 U CN 215197534U CN 202120659197 U CN202120659197 U CN 202120659197U CN 215197534 U CN215197534 U CN 215197534U
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Abstract
The utility model provides an air current sorter, air current sorter is including sorting bed (2), air feed mechanism (3) and vibration mechanism (4), the one end of sorting bed (2) is equipped with pan feeding mouth (24), the other end of sorting bed (2) is equipped with bin outlet (25), the bottom of sorting bed (2) is equipped with waste rock discharge mouth (26), the vibration direction of sorting bed (2) is partial to pan feeding mouth (24), vibration mechanism (4) can make sorting bed (2) vibrate along this vibration direction, air feed mechanism (3) can provide the wind of predetermineeing the waveform to sorting bed (2). The vibration direction of the sorting bed in the air flow sorting machine is towards the feeding port, so that clean coal and gangue in raw coal materials with low gangue content can be quickly separated from each other up and down, the gangue can be gathered on the sorting bed, and the gangue content in substances discharged from the gangue discharge port is greatly improved.
Description
Technical Field
The utility model relates to a coal dressing equipment technical field, specific is an air current sorter.
Background
The vibration direction a of the sorting bed 2 of the existing air jigging sorting machine is deviated to the feeding port 24, that is, as shown in fig. 1, an included angle α 1 between the vibration direction a of the sorting bed 2 and the direction B of the bed surface of the sorting bed 2 facing the light material discharging port 25 is smaller than an included angle α 2 between the vibration direction a of the sorting bed and the direction C of the bed surface of the sorting bed 2 facing the feeding port 24. In the vibration process of the separation bed 2 along the vibration direction, clean coal and gangue in raw coal materials to be separated are layered up and down according to different densities, and simultaneously both the clean coal and the gangue move towards the discharge port, for example, chinese patent document CN 103406267 a, published date 2013, 11.27.3, discloses a "last coal jigging dry separator and complete equipment thereof".
However, this air jigging separator is not suitable for processing raw coal materials with low gangue content because even if the raw coal materials are completely layered on the bed, the air jigging separator cannot separate pure gangue. For example, when a raw coal material with the upper limit of 30mm particle size is processed by using an air jigging separator, the gangue content of the raw coal is 5%, the thickness of a bed layer is 200mm, even if the gangue is completely separated from the material, the thickness of the gangue on the bottom layer is 10mm, and actually, the thickness of a single layer of the material on the bottom layer is at least 30mm, and 2/3 of non-gangue materials can be contained in the material even if the material on the bottom layer is completely separated.
SUMMERY OF THE UTILITY MODEL
In order to select separately the low raw coal material that contains the waste rock volume with high efficiency, the utility model provides an air current sorter, the vibration direction of sorting bed in this fecund material sorter is for being partial to the pan feeding mouth, not only can make the clean coal in the raw coal material that contains the waste rock volume separate from the waste rock about rapidly, can also make the waste rock gather on the sorting bed, makes the content of waste rock improve by a wide margin in the discharge of waste rock mouth exhaust material. Therefore, the raw coal product is divided into two or three products meeting the indexes, and the method has great economic benefit.
The utility model provides a technical scheme that its technical problem adopted is: an airflow separator comprises a separation bed, an air supply mechanism and a vibration mechanism, wherein a feeding opening is arranged above one end of the separation bed, a light material discharging opening is arranged at the other end of the separation bed, the bottom of one end of the sorting bed close to the direction of the feed inlet is provided with a waste rock discharge port, the sorting bed is arranged along the downward inclination of the feed inlet direction, the upper layer light density material in the sorting bed can slide downwards along the sorting bed under the action of gravity and is discharged from the light material discharge port, the vibration direction of the sorting bed is deviated to the feed inlet, the vibration mechanism can make the sorting bed vibrate along the vibration direction, the lower layer heavy density material in the sorting bed can move towards the direction of the feed inlet and gather towards the waste rock discharge port in a counter-current manner under the vibration action of the vibration mechanism and the coupling action of the bed friction force, the discharging is controlled by a discharging wheel in the waste rock discharging port, the air supply mechanism can provide wind with preset waveforms to the sorting bed, the preset waveform is a continuous wave line of a time and wind speed relation curve corresponding to the wind.
The cloth width of the feeding port is the same as the width of the sorting bed.
The vibration angle of the sorting bed is an included angle between the vibration direction and the sorting bed, and the vibration angle is 5-33 degrees.
The included angle between the bed surface of the sorting bed and the horizontal plane is 2.5-18 degrees, the amplitude of the sorting bed is 1-5 mm, and the vibration frequency of the sorting bed is 550-960 rpm.
Along the direction of pan feeding mouth to light material bin outlet, the sorting bed contains a plurality of sorting sections and a plurality of waste rock discharge mouth, and every sorting section all contains the air distributor.
A plurality of vent holes are formed in the air distribution plate, the aperture of each vent hole is larger than or equal to 2mm and smaller than the lower limit of the particle size of the material to be sorted, and the opening rate of the air distribution plate is 11% -36%; along the direction from the bed box feeding port to the light material discharging port, the aperture of the ventilation holes in the air distribution plates of the adjacent sorting sections is the same or gradually reduced, and the aperture ratio of the air distribution plates of the adjacent sorting sections is the same or gradually increased.
In every sorting section, the waste rock discharge port all sets up the one end in the pan feeding direction, and the other end of sorting section is equipped with overflow baffle, upper light density material can cross overflow baffle and then get into next adjacent sorting section.
The utility model has the advantages that: the vibration direction of the sorting bed in the multi-product material sorting machine is towards the feeding port, so that clean coal and gangue in raw coal materials with low gangue content can be quickly separated from each other up and down, the gangue can be discharged after being gathered on the sorting bed, and the content of the gangue in substances discharged from the gangue discharge port is greatly improved. Therefore, the raw coal product is divided into two or three products meeting the indexes, and the method has great economic benefit.
Drawings
The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.
Fig. 1 is a schematic view of a conventional air jigging separator.
Fig. 2 is a schematic view of the air separator of the present invention.
Fig. 3 is a schematic view of the working state of the air current separator of the present invention.
Figure 4 is a schematic view of the sorting bed of the present invention.
Fig. 5 is a schematic view of the working state of the sorting bed of the present invention.
FIG. 6 is a time versus wind speed curve for the wind output by the rotary damper.
1. A dust hood; 2. a sorting bed; 3. a wind supply mechanism; 4. a vibration mechanism; 5. a dust removal system; 6. a material distribution device;
21. an overflow baffle; 22. sorting the sections; 23. a wind distribution plate; 24. a feeding port; 25. a light material discharge port; 26. a waste rock discharge port;
31. an air chamber; 32. a source of wind; 33. an air supply duct; 34. rotating the air valve;
71. the lower layer of gangue; 72. upper clean coal;
212. a second overflow baffle; 213. a third overflow baffle;
221. a first sorting section; 222. a second sorting section; 223. a third sorting section;
231. a first air distribution plate; 232. a second air distribution plate; 233. a third air distribution plate;
261. a first gangue discharge port; 262. a second gangue discharge port; 263. a third gangue discharge port;
311. a first air chamber; 312. a second air chamber; 313. a third plenum.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
The utility model provides an air current sorting machine, air current sorting machine includes sorting bed 2, air feed mechanism 3, vibration mechanism 4, and the one end top of sorting bed 2 is equipped with pan feeding mouth 24, and the other end of sorting bed 2 is equipped with light material bin outlet 25, the bottom that sorting bed 2 is close to the one end of pan feeding mouth 24 direction is equipped with discharge waste rock mouth 26, and sorting bed 2 sets up along pan feeding direction downward sloping, and upper strata light density material in sorting bed 2 can slide down along sorting bed 2 and discharge by light material bin outlet 25 under the action of gravity, and the direction of vibration of sorting bed 2 is partial to pan feeding mouth 24, and vibration mechanism 4 can make sorting bed 2 vibrate along this direction of vibration, and lower floor heavy density material in sorting bed 2 can be under the vibration effect and the bed friction coupling effect of vibration mechanism 4, moves and gathers to discharge waste rock mouth 26 to pan feeding mouth 24 direction in the contrary flow to discharge waste rock is controlled by the pinch roller in the discharge waste rock mouth 26 and is discharged, the air supply mechanism 3 can supply wind with a preset waveform to the sorting bed 2, wherein the preset waveform is a continuous wave line corresponding to a time-wind speed relation curve of the wind, as shown in fig. 2 to 5.
The utility model discloses lie in with prior art's main difference, the vibration direction of sorting bed 2 is partial to pan feeding mouth 24, and the vibration direction A of sorting bed 2 promptly and the bed surface of sorting bed 2 are less than the vibration direction A of sorting bed 2 and the bed surface of sorting bed 2 towards contained angle alpha 1 between the direction B of light material bin outlet 25 with contained angle alpha 2 between the direction C of pan feeding mouth 24. The vibration direction is set in such a way that the materials to be sorted are stressed by upward and backward forces (towards the feeding direction) in the process of downward sliding movement under the action of gravity, the cleaned coal and the gangue in the raw coal materials to be sorted are subjected to small cleaned coal density in the lower-layer materials and move upward and backward under the action of vibration and wind in the vibration process of the sorting bed 2 along the vibration direction A, the gangue density in the lower-layer materials is large, the gravity action is greater than the buoyancy and the vibration action force of the wind, and the bed layer friction force is large, so that the gangue moves backward, the cleaned coal moves upward and backward and the gangue moves downward and backward in the upper-layer materials, so that the materials in the sorting bed are divided into a light density layer (cleaned coal) and a heavy density layer (gangue) which are arranged up and down according to the difference of densities, and in the process, the light density layer moves obliquely downward along the bed surface towards the direction B of the light material discharge port 25, the heavy density layer moves upwards in an inclined mode along the bed surface towards the direction C of the feed inlet 24, and in the process of the upwards movement of the heavy density layer in the inclined mode, the heavy density layer is simultaneously under the action of vibration and gravity, the friction force of the sorting bed surface is large, gangue cannot move downwards under the action of the friction force and the gravity, but moves towards the feed end, the gangue can be gradually gathered in an upwards inclined mode, and finally the heavy density layer is gathered and discharged at the gangue discharge port 26, so that the content of the gangue in the gangue discharge material is greatly improved. Therefore, the air current separator of the utility model is particularly suitable for separating the raw coal material with low gangue content (and the gangue particle size is smaller).
In this embodiment, the material distribution width of the material inlet 24 is the same as the width of the sorting bed 2, the wind-powered dry separation equipment in the prior art adopts non-equal-width material feeding, i.e. the material feeding width is smaller than the width of the sorting bed, which is beneficial to equipment arrangement, and the equal-width material feeding cannot be beneficial to the sorting effect no matter the composite dry separator or the differential wind-powered dry separator, in this application, the material to be sorted enters the sorting bed from the material distribution opening, if the width of the material distribution opening is smaller than the width of the sorting bed, the material enters the sorting bed and then is triangular, i.e. narrow when being fed, and is gradually distributed to be the width of the sorting bed in the advancing process, in the advancing process of the material, the transverse movement speed of the lower layer of gangue is slow, the upper layer of clean coal directly enters the lower layer with the wind force to the vacant lower layer at both sides, so that the gangue in the middle of the cross section discharging process is relatively pure, the coal carrying rate of the waste rocks on the two sides is high, so that pure waste rocks cannot be discharged; if the sorting precision is ensured, a preselection area is increased, the length of a sorting bed is lengthened, and the materials are sorted after gradually tending to equal width and stability in the moving process; the bed surface of the sorting bed 2 is in an inclined state, the feeding port 24 of the sorting bed 2 is higher than the light material discharging port 25 of the sorting bed 2, the light material discharging port 25 and the feeding port 24 are arranged in a left-right corresponding mode, the included angle alpha 2 between the vibration direction A of the sorting bed 2 and the direction C of the bed surface of the sorting bed 2 facing the feeding port 24 is smaller than 90 degrees and larger than 0 degree, and the vibration angle of the sorting bed 2 is 5-33 degrees.
In this embodiment, the included angle between the bed surface of the sorting bed 2 and the horizontal plane is 2.5-18 °, the amplitude of the sorting bed 2 is 1-5 mm, and the vibration frequency of the sorting bed 2 is 550-960 rpm. The movement speed of the heavy density layer and the height of the material layer from upstream to downstream are controlled by the friction force of the bed surface, the excitation direction angle, the angle of the bed surface, the amplitude and the frequency. The friction force of the bed surface is increased through the bed surface covering rubber, wherein the larger the amplitude is, the higher the frequency is, the smaller the included angle between the bed surface and the horizontal plane is, and the stronger the reverse conveying capacity of the gangue at the bottom of the bed surface is. Conversely, the higher the conveying capacity of the upper layer material (light density layer).
In the present embodiment, along the direction from the feeding port 24 to the light material discharging port 25, the separation bed 2 includes a plurality of separation sections 22 and a plurality of waste rock discharging ports 26, the separation sections 22 correspond to the waste rock discharging ports 26 one by one, and each separation section 22 includes an air distribution plate 23. In each separation section 22, the air distribution plate 23 and the gangue discharge port 26 are arranged adjacently left and right, and the distance from the air distribution plate 23 to the light material discharge port 25 is smaller than the distance from the gangue discharge port 26 to the light material discharge port 25.
In this embodiment, a plurality of vent holes are formed in the air distribution plate 23, the aperture of each vent hole is greater than or equal to 2mm and smaller than the lower limit of the particle size of the material to be sorted, and the aperture ratio of the air distribution plate 23 is 11% -36%; follow bed case pan feeding mouth 24 to bed case light material bin outlet 25 direction, the aperture of the ventilation hole in the grid 23 of adjacent branch section is the same or reduces gradually, the aperture ratio of adjacent grid 23 is the same or increases gradually, different separation beds adopt different apertures and aperture ratio, use the large aperture at the pan feeding end, little aperture ratio, can make the bold waste rock subside fast, great aperture can adapt to the separation of bold material, and the separation region of next stage, the material particle diameter reduces gradually, corresponding aperture ratio increases gradually, make the bed layer of the low density clean coal of clean coal section better steady, the clean coal product that corresponds is better, the aperture and the aperture ratio design of this equipment make the pan feeding scope particle diameter of a broad, can realize gradient separation in the equipment of this application, this is that the same aperture of grid and aperture ratio can't reach.
Specifically, along the direction from the feeding port 24 to the light material discharging port 25, the separation bed 2 may include three separation sections 22, three air distribution plates 23 and three waste rock discharge ports 26, where the three separation sections 22 are a first separation section 221, a second separation section 222 and a third separation section 223 in sequence, the three air distribution plates 23 are a first air distribution plate 231, a second air distribution plate 232 and a third air distribution plate 233 in sequence, and the three waste rock discharge ports 26 are a first waste rock discharge port 261, a second waste rock discharge port 262 and a third waste rock discharge port 263 in sequence.
In the present embodiment, the width (i.e., the dimension in the left-right direction in fig. 2) of the waste rock discharge opening 26 may be the same or gradually decreased along the direction from the material inlet 24 to the light material discharge opening 25. For example, the widths of the first gangue discharge port 261, the second gangue discharge port 262 and the third gangue discharge port 263 are the same, or the width of the first gangue discharge port 261 is larger than that of the second gangue discharge port 262, and the width of the second gangue discharge port 262 is larger than that of the third gangue discharge port 263.
In the present embodiment, an overflow baffle 21 is provided in the sorting section 22, and the height of the overflow baffle 21 is the same or gradually reduced along the direction from the feeding port 24 to the light material discharging port 25. For example, the second separation section 222 includes a second overflow barrier 212, the second discharge opening 262 is positioned between the second air distribution plate 232 and the second overflow barrier 212, the third separation section 223 includes a third overflow barrier 213, and the third overflow barrier 213 is positioned between the third air distribution plate 233 and the third overflow barrier 213. The heights of the second overflow barrier 212 and the third overflow barrier 213 are the same, or the height of the second overflow barrier 212 is greater than the height of the third overflow barrier 213. The purpose of the overflow baffle 21 is to bring the heavy density layer together at the discharge opening 26.
In this embodiment, the air supply mechanism 3 includes an air source 32, an air supply duct 33, a rotary air valve 34, and air chambers 31 connected in this order, and the air chambers 31 correspond to the sorting sections 22 one by one. For example, the air chamber 31 means a first air chamber 311, a second air chamber 312 and a third air chamber 313 which are sequentially arranged along the direction from the material inlet 24 to the light material outlet 25, the rotary air valves 34 are connected with the air chambers 31 in a one-to-one correspondence manner, each rotary air valve 34 is independently controlled, and the rotary air valve 34 can output air with a preset waveform (namely, pulsating air described below). The preset waveform is a continuous wave line of a time and wind speed relation curve corresponding to the wind, and preferably the wave line is a sine curve or a cosine curve.
In this embodiment, this air current sorter is still dust excluding hood 1, dust pelletizing system 5 and distributing device 6, and dust excluding hood 1 and dust pelletizing system 5 all are located the top of sorting bed 2, and air feed mechanism 3 is located the below of sorting bed 2, and distributing device 6 is used for carrying the raw coal material of waiting to select separately to sorting bed 2 in according to preset speed, and distributing device 6's export corresponds with pan feeding mouth 24 and is connected.
The following multi-product material sorting method adopts the airflow sorting machine, and comprises the following steps:
and 3, the lower layer heavy-density material moves upwards in a countercurrent manner under the vibration action and is discharged through a waste rock discharge port 26, and the upper layer light-density material slides downwards under the self gravity action and is discharged from a light-weight material discharge port 25.
Since the separation bed 2 can contain a plurality of separation sections 22, and each rotary air valve 34 is independently controlled, in step 2, the air supply mechanism 3 can independently supply different pulsating air to each separation section 22, and the corresponding relation curve of time and air speed is a continuous wave line, as shown in fig. 6. Bed thickness that is close to the pan feeding mouth is big, and corresponding wind speed is big, the frequency is low, makes the fluidization of bed select separately density high, and the waste rock of high density can be quick sinks to the bottom, and the clean coal of low density floats to the top layer, and the material of lower floor is upstream under the drive of vibrational force, along pan feeding mouth 24 direction to light material bin outlet 25 promptly, the wind speed of pulsation wind reduces gradually, the frequency crescent of pulsation wind. The thickness of the raw coal material within the plurality of sorting stages 22 gradually decreases.
For example, in the first separation section 221, the thickness of the raw coal material is about 200mm-350mm, the wind speed of the pulsating wind is 2.6m/s-3.5m/s, the frequency of the pulsating wind is 30rpm-55rpm, and the high density (more than 2.5 g/cm)3) The gangue is discharged from the first gangue discharge port 261.
In the second separation section 222, the thickness of the raw coal material is about H1 gamma (100% -G1), the wind speed of the pulsating wind is 2.6-3.5 m/gamma (100% -G1), the frequency of the pulsating wind is 55rpm-78rpm, and the medium density is (2.0G/cm)3-2.5g/cm3) The gangue is discharged at a second gangue discharge port 262. Wherein H1 is the thickness of the raw coal material in the first separation section 221, in mm; g1 is the gangue discharge rate in the first separation section 221, without units.
In the third separation section 223, the thickness of the raw coal material is about H2 gamma (100% -G2), the wind speed of the pulsating wind is 2.6-3.5m/s gamma (100% -G1), the frequency of the pulsating wind is 79-135 rpm, and the low density is 1.6G/cm gamma (100% -G2)3-2.0g/cm3) The gangue is discharged from the third gangue discharge port 263. Wherein H2 is the thickness of the raw coal material in the second separation section 222, in mm; g2 is the reject rate in the second separation section 222, unitless.
The thickness of the raw coal material in the first separation section 221, the second separation section 222 and the third separation section 223 gradually decreases in the direction from the feed opening 24 to the light material discharge opening 25, and the raw coal material can be called gradient fluidization.
The operation of the air flow separator will be described below.
Coal materials to be sorted enter the sorting bed 2 from the feeding port 24, air with certain pressure is provided by the air source 32, the wind speed curve and the fluctuation range of the wind speed are controlled by the rotary air valve 34, and the coal materials uniformly penetrate through the material layer after being uniformly distributed by the wind distribution plate 23 and then enter the dust removal system 5.
The vibration mechanism 4 vibrates the sorting bed 2 along the vibration direction, in the process, clean coal with relatively low density moves upwards to form a light density layer, gangue with relatively high density moves downwards to form a heavy density layer, meanwhile, the light density layer moves downwards along the direction B of the bed surface towards the light material discharge opening 25 in an inclined mode, the heavy density layer moves upwards along the direction C of the bed surface towards the material inlet 24 in an inclined mode, the heavy density layer is discharged through the gangue discharge opening 26 after being gathered, and the light density layer is discharged from the light material discharge opening 25.
Specifically, after the materials are primarily sorted by the first sorting section 221, the gangue separated and enriched by the bottom layer is discharged from the first gangue discharge port 261, the rest materials overflow into the second sorting section 222 for secondary sorting, the gangue enriched by the bottom layer after sorting is discharged from the second gangue discharge port 262, the rest materials overflow into the third sorting section 223 for secondary sorting, the gangue enriched by the bottom layer after sorting is discharged from the third gangue discharge port 263, and finally the product meeting the index is discharged from the light material discharge port 25.
For convenience of understanding and description, the present invention is expressed in terms of absolute positional relationship, in which the directional word "up" indicates the upper direction in fig. 2, "down" indicates the lower direction in fig. 2, "left" indicates the left direction in fig. 2, and "right" indicates the right direction in fig. 2. The utility model discloses an observation visual angle that has adopted user or read describes, but above-mentioned position word can not understand or explain as being right the utility model discloses the limited of scope of protection.
The above description is only for the specific embodiments of the present invention, and the scope of the present invention can not be limited by the embodiments, so that the replacement of the equivalent components or the equivalent changes and modifications made according to the protection scope of the present invention should still belong to the scope covered by the present patent. In addition, the utility model provides an between technical feature and the technical feature, between technical feature and technical scheme, technical scheme and the technical scheme all can the independent assortment use.
Claims (7)
1. The utility model provides an air current sorting machine, air current sorting machine includes sorting bed (2), air feed mechanism (3), vibration mechanism (4), and the one end top of sorting bed (2) is equipped with pan feeding mouth (24), and the other end of sorting bed (2) is equipped with light material bin outlet (25), its characterized in that, the bottom that sorting bed (2) is close to the one end of pan feeding mouth (24) direction is equipped with row cash mouth (26), and sorting bed (2) set up along pan feeding direction downward sloping, and the upper strata light density material in sorting bed (2) can be followed sorting bed (2) lapse and is discharged by light material bin outlet (25) under the action of gravity, and the direction of vibration of sorting bed (2) is partial to pan feeding mouth (24), and vibration mechanism (4) can make sorting bed (2) vibrate along this direction, and the lower floor heavy density material in sorting bed (2) can be under the vibration and bed frictional force coupling effect of vibration mechanism (4), move and gather to waste rock discharge mouth (26) to pan feeding mouth (24) direction against the current to by the pinch roller control in waste rock discharge mouth (26) discharge, air feed mechanism (3) can provide the wind of predetermineeing the waveform to sorting bed (2), predetermine the waveform do time and the wind speed relation curve that wind corresponds are continuous wave line.
2. The air flow separator according to claim 1, characterized in that the material distribution width of the inlet opening (24) is the same as the width of the separator bed (2).
3. The air flow separator according to claim 1, characterized in that the vibration angle of the separator bed (2) is the angle between the vibration direction and the separator bed, said vibration angle being 5 ° to 33 °.
4. The air flow separator according to claim 1, characterized in that the angle between the bed surface of the separator bed (2) and the horizontal plane is 2.5 ° -18 °, the amplitude of the separator bed (2) is 1mm-5mm, and the vibration frequency of the separator bed (2) is 550rpm-960 rpm.
5. The air flow separator according to claim 1, characterised in that the separating bed (2) comprises a plurality of separating sections (22) and a plurality of gangue discharge openings (26) in the direction from the inlet opening (24) to the outlet opening (25) for the light material, each separating section (22) comprising an air distribution plate (23).
6. The air flow separator as claimed in claim 5, wherein a plurality of vent holes are arranged in the air distribution plate (23), the aperture of each vent hole is greater than or equal to 2mm and smaller than the lower limit of the particle size of the material to be separated, and the aperture ratio of the air distribution plate (23) is 11% -36%; along the direction from the bed box feeding port (24) to the light material discharging port (25), the aperture of the vent holes in the air distribution plates (23) of the adjacent sorting sections (22) is the same or gradually reduced, and the aperture ratio of the air distribution plates (23) of the adjacent sorting sections (22) is the same or gradually increased.
7. The air flow separator according to claim 5, characterised in that in each separation section (22) the gangue discharge opening (26) is arranged at one end in the feeding direction and the other end of the separation section (22) is provided with an overflow baffle (21), the upper layer of light density material being able to pass the overflow baffle (21) and enter the next adjacent separation section (22).
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115364994A (en) * | 2022-10-21 | 2022-11-22 | 天津美腾科技股份有限公司 | Sorting apparatus |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115364994A (en) * | 2022-10-21 | 2022-11-22 | 天津美腾科技股份有限公司 | Sorting apparatus |
| CN115364994B (en) * | 2022-10-21 | 2023-02-10 | 天津美腾科技股份有限公司 | Sorting apparatus |
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