A dry air classifier

Abstract

This utility model provides a dry air-separation mineral processing machine, belonging to the technical field of magnetic separation equipment. The dry air-separation mineral processing machine provided by this utility model includes a stepped frame and a mounting box; the stepped frame has several stepped platforms; the mounting box is fixedly mounted on the stepped frame, with one end of the mounting box serving as a feed inlet; the mounting box contains several magnetic roller mechanisms, which are respectively mounted on the stepped platforms; both sides of the magnetic roller mechanisms are provided with inclined discharge slides; the mounting box and the discharge slides located below the mounting box constitute a first discharge outlet; this dry air-separation mineral processing machine can perform multiple stepped purification of iron concentrate, resulting in a significantly improved purity of the final iron concentrate. Furthermore, during the purification process, dust in the material is sucked away by a fan through the air intake, avoiding air pollution.

Description

Technical Field

[0001] This utility model belongs to the field of magnetic separation equipment technology, and more specifically, it relates to a dry air separation mineral processing machine. Background Technology

[0002] Iron concentrate is the main raw material for pellets. It is a mineral powder made from iron ore through crushing, grinding, and beneficiation. Fluctuations in the iron content will directly affect the quality of the finished pellets.

[0003] Currently, there are various magnetic separation devices on the market for purifying iron concentrate. They basically have one or more magnetic rollers rotating to purify the iron concentrate. The purified iron concentrate is separated, and its purity often does not meet the standards. In addition, during the purification process, dust in the material will be mixed into the air, causing air pollution.

[0004] The existing magnetic separators for iron concentrate do not have high enough purification precision; and the dust will pollute the air during the purification process. Utility Model Content

[0005] The purpose of this utility model is to provide a dry air separation mineral processing machine to solve the technical problems of insufficient purification accuracy of iron concentrate magnetic separators in the prior art, and the pollution of air by dust during the purification process.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is: to provide a dry air separation mineral processing machine, comprising: The tiered shelf has several steps arranged in a stepped manner; The mounting box is fixedly installed on the stepped frame, and one end of the mounting box is the feed inlet; The mounting box contains several magnetic roller mechanisms, which are respectively mounted on several steps. Both sides of the magnetic roller mechanism are provided with inclined feeding slides; The mounting box and the unloading slide plate located on the lower side of the mounting box constitute a first discharge port.

[0007] In one possible implementation, based on the above technical solutions, the magnetic roller mechanism includes a roller and a magnetic roller. The magnetic roller is fixedly installed on one side of the step, and the roller is movably installed on the other side of the step. The roller is connected to a motor and is sleeved on the magnetic roller. The magnetic roller includes a fixed roller and several sets of magnets arranged on the outer surface of the fixed roller. There are gaps between the several sets of magnets, and the positive and negative poles of adjacent magnets are arranged in opposite directions.

[0008] In one possible implementation, based on the above technical solutions, an air intake is provided on one side of the mounting box, and a fan is installed at the air intake to suck away the dust inside the mounting box when the dry air separation ore beneficiation machine is working.

[0009] In one possible implementation, based on the above technical solutions, a windbreak arc plate is connected to one side of the feeding slide plate to prevent the fan from sucking away iron concentrate when the dry air classifier is working.

[0010] In one possible implementation, in conjunction with the above technical solutions, a windbreak plate is also connected to one side of the feeding slide plate to further prevent the fan from sucking away iron concentrate when the dry air classifier is working.

[0011] In one possible implementation, based on the above technical solutions, the mounting box is provided with a baffle plate, which includes a first baffle plate and a second baffle plate. The first baffle plate and the windproof straight plate located on the lower side of the mounting box constitute a second discharge port, and the second baffle plate and the mounting box constitute a third discharge port.

[0012] In one possible implementation, based on the above technical solutions, the mounting box is provided with an upper baffle, and observation windows are provided at positions corresponding to the magnetic roller mechanisms on the upper baffle, with a cover plate hinged to the observation window.

[0013] The beneficial effects of the dry air separation mineral processing machine provided by this utility model are as follows: Compared with the prior art, the dry air separation mineral processing machine provided by this utility model adopts a stepped magnetic separation. When purifying iron concentrate, the motor is started, and the motor drives the roller to rotate, while the fixed roller and the magnet on the fixed roller are fixed. The iron concentrate is poured into the feed port of the mounting box, and the iron concentrate will slide down the first feed slide plate. When the iron concentrate slides onto the first roller, it will be attracted to the roller by the magnet and rotate with the roller. The force of the reverse polarity of the N pole and S pole of the sequentially arranged magnet will cause the magnetic material to be attracted to the roller during the rotation of the roller. During the rotation, the material tumbles, throwing off non-magnetic material. When the roller rotates to the position where the magnet is not installed on the fixed roller, the iron concentrate is no longer attracted by the magnet and will detach from the roller to the next feeding slide. This process is repeated. When it reaches the lowest magnetic roller mechanism, the iron concentrate with the highest purity flows out from the first discharge port, the iron concentrate with lower purity flows out from the second discharge port, and impurities flow out from the third discharge port. The iron concentrate undergoes multiple step-by-step purifications, and the purity of the final iron concentrate is greatly improved. In addition, during the purification process, the dust in the material is sucked away by the fan through the air intake, avoiding air pollution. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 A schematic diagram of the structure of a dry air separation mineral processing machine provided for an embodiment of this utility model; Figure 2 This is a schematic diagram of the structure of a dry air classifier after removing the mounting box, provided by an embodiment of the present utility model; Figure 3 A schematic diagram of the installation box of a dry air separation mineral processing machine provided for an embodiment of this utility model; Figure 4 A cross-sectional view of a dry air separation mineral processing machine provided for an embodiment of this utility model; Figure 5 for Figure 4 Enlarged view of point A in the middle; Figure 6 A schematic diagram of the magnetic roller mechanism of a dry air separation mineral processing machine provided for an embodiment of this utility model; Figure 7 This is a schematic diagram of the structure of a magnetic roller in a dry air separation mineral processing machine provided for an embodiment of this utility model.

[0016] The labels for the attached figures are as follows: 10. Ladder frame; 11. Stepped platform; 20. Mounting box; 21. Feed inlet; 22. Discharge slide plate; 221. Windshield arc plate; 222. Windshield straight plate; 23. First discharge port; 24. Air intake port; 25. Baffle plate; 251. First baffle plate; 252. Second baffle plate; 26. Second discharge port; 27. Third discharge port; 28. Upper baffle; 281. Observation window; 30. Magnetic roller mechanism; 31. Roller; 32. Magnetic roller; 321. Fixed roller; 322. Magnet; 323. Gap. Detailed Implementation

[0017] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the described embodiments are only a part of the embodiments of this application, not all of them. The specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0018] It should be further explained that the accompanying drawings and embodiments of this utility model mainly describe the concept of this utility model. Based on this concept, some specific forms and settings of connection relationships, positional relationships, power mechanisms, power supply systems, hydraulic systems and control systems may not be fully described. However, under the premise that those skilled in the art understand the concept of this utility model, they can implement the above-mentioned specific forms and settings in a well-known manner.

[0019] When a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0020] The directional terms "inner" and "outer" refer to the inner and outer sides relative to the outline of each component itself. The terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] For ease of description, spatial relative terms such as "above," "over," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "above" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways, and the spatial relative descriptions used herein will be interpreted accordingly.

[0022] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "multiple" means two or more, and "several" means one or more, unless otherwise explicitly specified.

[0023] The present invention provides a dry air separation mineral processing machine.

[0024] like Figure 1 , Figure 4 and Figure 5 As shown, this utility model provides a dry air separation mineral processing machine, including a stepped frame 10 and a mounting box 20; the stepped frame 10 is provided with a plurality of stepped platforms 11; the mounting box 20 is fixedly mounted on the stepped frame 10 and can be connected by fasteners or directly welded to the stepped frame 10. One end of the mounting box 20 is a feed inlet 21; wherein, the mounting box 20 is provided with a plurality of magnetic roller mechanisms 30, and the plurality of magnetic roller mechanisms 30 are respectively mounted on the plurality of stepped platforms 11; both sides of the magnetic roller mechanism 30 are provided with inclined discharge slide plates 22; the mounting box 20 and the discharge slide plate 22 located on the lower side of the mounting box 20 constitute a first discharge port 23.

[0025] This utility model provides a dry air separation mineral processing machine. Compared with the prior art, the dry air separation mineral processing machine provided by this utility model adopts a stepped magnetic separation. When purifying iron concentrate, the iron concentrate is poured into the inlet 21 of the mounting box 20. The iron concentrate will slide down the first discharge slide plate 22. When the iron concentrate slides onto the first magnetic roller mechanism 30, it will be purified by the first magnetic roller mechanism 30. After purification, the iron concentrate falls onto the second discharge slide plate 22 and is purified by the second magnetic roller mechanism 30. This process is repeated. When purified by the lowest magnetic roller mechanism 30, the iron concentrate with the highest purity will flow out from the first outlet 23. After multiple stepped purifications, the purity of the iron concentrate is greatly improved.

[0026] like Figure 4 , Figure 6 and Figure 7 As shown, in a specific embodiment of the dry air separation ore beneficiation machine provided by this utility model, the magnetic roller mechanism 30 includes a roller 31 and a magnetic roller 32. The magnetic roller 32 is fixedly installed on one side of the step 11, and the roller 31 is movably installed on the other side of the step 11. The roller 31 is connected to a motor and is sleeved on the magnetic roller 32. The magnetic roller 32 includes a fixed roller 321 and several sets of magnets 322 arranged on the outer surface of the fixed roller 321. There is a gap 323 between the several sets of magnets 322, and the positive and negative poles of adjacent magnets 322 are arranged oppositely.

[0027] It should be noted that magnets 322 are not installed on the entire outer surface of the fixed roller 321; only a few are installed. Figure 4 As shown in the diagram, when the iron concentrate slides from the feed slide 22 onto the roller 31, it will be attracted to the roller 31 by the magnet 322. As the motor drives the roller 31 to rotate clockwise, since there is a gap 323 between each set of magnets 322, the iron concentrate will disperse when it reaches the gap 323. When the iron concentrate leaves the gap 323 and reaches the next set of magnets 322, it will be attracted to the roller 31 again. This flipping process is repeated, and the dust and impurities in the iron concentrate will fall off completely. When the roller 31 rotates clockwise to the area of ​​the fixed roller 321 where there is no magnet 322, the iron concentrate is no longer attracted by the magnet 322 and, under the action of inertia, it will detach from the roller 31 and fall onto the next feed slide 22.

[0028] like Figure 3 As shown, in a specific embodiment of the dry air separation mineral processing machine provided by this utility model, an air intake 24 is provided on one side of the mounting box 20, and a fan (not shown in the figure) is installed at the air intake 24 to suck away the dust in the mounting box 20 when the dry air separation mineral processing machine is working.

[0029] Specifically, when this dry air classifier purifies iron concentrate, the dust in the iron concentrate will separate from the iron concentrate and diffuse into the mounting box 20. At this time, the fan installed at the air inlet 24 is turned on, and the fan can suck away the air in the mounting box 20, thereby sucking away the dust diffused in the mounting box 20 and avoiding air pollution.

[0030] like Figure 4 As shown, in a specific embodiment of the dry air classifier provided by this utility model, a baffle plate 221 is connected to one side of the feed slide 22 to prevent the fan from sucking away the iron concentrate when the dry air classifier is working. Here, when the fan is started, in order to avoid the iron concentrate in the purification process being directly sucked away by the strong suction of the fan, a baffle plate 221 is specially set on one side of the feed slide 22. When the fan is working, the baffle plate 221 prevents the fan from directly sucking the iron concentrate and can block part of the suction force to ensure that the iron concentrate is not sucked away by the fan during the purification process.

[0031] like Figure 4 As shown, in a specific embodiment of the dry air classifier provided by this utility model, a baffle plate 222 is also connected to one side of the discharge slide plate 22 to further prevent the fan from sucking away iron concentrate when the dry air classifier is working; furthermore, by connecting the baffle plate 222 to one side of the discharge slide plate 22, the suction force generated by the fan can be further blocked, further ensuring that the iron concentrate will not be directly sucked away by the fan.

[0032] like Figure 4 and Figure 5 As shown, in a specific embodiment of the dry air separation ore beneficiation machine provided by this utility model, the mounting box 20 is provided with a baffle plate 25. The baffle plate 25 includes a first baffle 251 and a second baffle 252. The first baffle 251 and the windproof straight plate 222 located on the lower side of the mounting box 20 constitute a second discharge port 26. The second baffle 252 and the mounting box 20 constitute a third discharge port 27.

[0033] In this dry air separation concentrator, the magnetic force of the magnet 322 in the lowest magnetic roller mechanism 30 is less than that of the magnets 322 in other magnetic roller mechanisms 30. As a result, when iron concentrate is attracted to the roller 31 of the lowest magnetic roller mechanism 30, the part of the iron concentrate with lower purity will fall onto the first baffle 251 and the windproof straight plate 222 located on the lower side of the mounting box 20, and be discharged through the second discharge port 26. Meanwhile, the impurities in the purification process will fall onto the side wall of the mounting box 20 and the second baffle 252, and be discharged through the third discharge port 27.

[0034] like Figure 1As shown, in a specific embodiment of the dry air separation ore beneficiation machine provided by this utility model, the mounting box 20 is provided with an upper baffle 28, and an observation window 281 is opened at the corresponding position of the upper baffle 28 and several magnetic roller mechanisms 30. A cover plate (not shown in the figure) is hinged on the observation window 281. When the machine is working, the cover plate must be closed to prevent iron concentrate from flying out.

[0035] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

[0036] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0037] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

Claims

1. A dry air table concentrator, characterized in that, include: The stepped shelf (10) has several stepped platforms (11) arranged in a stepped shape. The mounting box (20) is fixedly installed on the stepped frame (10), and one end of the mounting box (20) is the feed inlet (21). The mounting box (20) is provided with a number of magnetic roller mechanisms (30), and the number of magnetic roller mechanisms (30) are respectively installed on the number of steps (11); The magnetic roller mechanism (30) is provided with inclined feeding slides (22) on both sides. The mounting box (20) and the unloading slide plate (22) located on the lower side of the mounting box (20) constitute a first discharge port (23); A suction port (24) is provided on one side of the mounting box (20), and a fan is installed at the suction port (24) to suck away the dust in the mounting box (20) when the dry air separation mineral concentrator is working. A windbreak arc plate (221) is connected to one side of the feeding slide plate (22) to prevent the fan from sucking away iron concentrate when the dry air classifier is working. A windbreak plate (222) is also connected to one side of the feeding slide plate (22) to further prevent the fan from sucking away iron concentrate when the dry air classifier is working.

2. The dry air separation mineral processing machine as described in claim 1, characterized in that: The magnetic roller mechanism (30) includes a roller (31) and a magnetic roller (32). The magnetic roller (32) is fixedly installed on one side of the step (11), and the roller (31) is movably installed on the other side of the step (11). The roller (31) is connected to a motor and is sleeved on the magnetic roller (32). The magnetic roller (32) includes a fixed roller (321) and several sets of magnets (322) arranged on the outer surface of the fixed roller (321). There is a gap (323) between the several sets of magnets (322), and the positive and negative poles of adjacent magnets (322) are arranged oppositely.

3. The dry air separation mineral processing machine as described in claim 1, characterized in that: The mounting box (20) is provided with a baffle plate (25), which includes a first baffle plate (251) and a second baffle plate (252). The first baffle plate (251) and the windproof straight plate (222) located on the lower side of the mounting box (20) constitute a second discharge port (26), and the second baffle plate (252) and the mounting box (20) constitute a third discharge port (27).

4. A dry air separation mineral processing machine as described in claim 1, characterized in that: The mounting box (20) is provided with an upper baffle (28), and an observation window (281) is provided at the corresponding position of the upper baffle (28) and the magnetic roller mechanism (30), and a cover plate is hinged on the observation window (281).

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