Rotary material uniformizing device and ladder flow sorting system

Abstract

The utility model relates to the technical field of preparation equipment, in particular to a rotary material uniformizing device and a ladder flow separation system. The rotary material uniformizing device is used for the coal sorting system, the coal sorting system comprises a material bin and a conveyor, the material bin is arranged at the discharging end of the conveyor, and the rotary material uniformizing device is arranged above the material bin; the rotary material uniformizing device comprises a driver, a rotating shaft and a material blocking plate. One end of the striker plate is connected with the rotating shaft; the driver is in transmission connection with the rotating shaft and drives the rotating shaft to rotate. The rotary material homogenizing device is arranged above the material bin, so that a single blanking point of the material is changed into a plurality of blanking points, the uniformity of the density and the granularity of the material in the material bin is improved, the phenomenon of material segregation is avoided, the density and the granularity of the material subsequently entering the sorting equipment are uniform along the transverse end face, and the sorting effect of the sorting equipment is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to mineral processing equipment technical field, concretely relates to a rotating material equalizing device and gradient flow sorting system. BACKGROUND

[0002] The jig, the gradient flow sorting machine and the air table are all the equipment for coal sorting and gangue discharging. When in use, the raw coal enters the equipment to form a bed layer of certain thickness, and the light material and the heavy material in the bed layer are separated according to the density, the material with large density enters the lower layer, and the material with small density enters the upper layer.

[0003] In the sorting process, the material needs to be guaranteed to be layered strictly according to the density on the bed layer, and the material needs to be guaranteed to have certain thickness on the bed layer, and the thickness of the material on the bed layer is uniform, and the thickness change rate of each place cannot be too large. In this way, the upstream of the sorting equipment needs to be provided with a material bin as a buffer device, but the material enters the material bin as a single point, and the material is easy to produce the density and granularity segregation phenomenon after entering the material bin, that is, the small block material is easy to accumulate at the material falling point, and the large block material rolls and slides to the wall of the bin near the material bin. Therefore, the density and granularity of the material flow transverse section (perpendicular to the movement direction of the material in the sorting equipment) after the material discharged from the bottom of the material bin enters the sorting equipment are different, which affects the sorting effect.

[0004] Therefore, the utility model provides a rotating material equalizing device and gradient flow sorting system to increase the number of material falling points when the material enters the material bin, and solve the phenomenon of density and granularity segregation caused by single material falling point. UTILITY MODEL CONTENTS

[0005] The main purpose of the utility model is to provide a rotating material equalizing device to change the falling track of the material when the material enters the material bin, thereby increasing the number of material falling points when the material enters the material bin, and solving the phenomenon of density and granularity segregation caused by single material falling point. The utility model also provides a gradient flow sorting system comprising the above-mentioned rotating material equalizing device.

[0006] In order to realize the above-mentioned purpose, the utility model embodiment provides a rotating material equalizing device for a coal sorting system, the coal sorting system comprises a material bin and a conveyor, the material bin is arranged above the discharge end of the conveyor, and the rotating material equalizing device is arranged above the material bin.

[0007] The rotating material equalizing device comprises a driver, a rotating shaft and a material blocking plate.

[0008] One end of the material blocking plate is connected with the rotating shaft.

[0009] The driver is in transmission connection with the rotating shaft and drives the rotating shaft to rotate.

[0010] Further, the material blocking plate is in the shape of a fan ring; and the inner circle of the material blocking plate is connected with the rotating shaft.

[0011] Further, the material blocking plate is downwardly inclined.

[0012] Further, the inclination angle of the material blocking plate is α, wherein 10°≤α<90°.

[0013] Further, a plurality of material blocking plates are provided, all of the material blocking plates are located on the same axial plane of the rotating shaft, and all of the material blocking plates are arranged along the circumference of the rotating shaft.

[0014] Further, all of the material blocking plates have at least one size specification.

[0015] Further, all of the material blocking plates have at least one inclination angle.

[0016] Further, the coal sorting system further comprises a device frame; the rotating material uniformizing device further comprises a mounting rack, the mounting rack is fixedly arranged on the device frame and located above the material bin, and the driver is arranged on the mounting rack.

[0017] Further, the driver is a variable frequency motor.

[0018] The utility model discloses another aspect embodiment still provides a ladder flow sorting system, including rotating material uniformizing device in any embodiment in the foregoing.

[0019] The utility model discloses beneficial effect:

[0020] The utility model provides a kind of rotating material uniformizing device, for coal sorting system, the coal sorting system includes material bin and conveyor, the material bin is located at the discharge end of the conveyor, and the rotating material uniformizing device is located above the material bin;The rotating material uniformizing device includes: driver, rotating shaft and material blocking plate;One end of the material blocking plate is connected with the rotating shaft;The driver is in transmission connection with the rotating shaft, and drives the rotating shaft to rotate.

[0021] By being provided with rotating material uniformizing device above material bin, material is changed from single dropping point to multiple dropping points, improve the uniformity of density, granularity of material in material bin, compared with prior art, will not produce material segregation phenomenon, make subsequent material into sorting equipment along transverse end surface density, granularity uniform, improve the sorting effect of sorting equipment.Moreover, in use process, at least one of setting number, setting position and specification size of material blocking plate can be adjusted to realize the controllable dropping point of material, solve the problem of material bin material, further improve the sorting effect of sorting equipment. BRIEF DESCRIPTION OF DRAWINGS

[0022] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0023] Figure 1 A schematic diagram of the tiered flow sorting system provided in this embodiment of the utility model;

[0024] Figure 2 This is a schematic diagram of the structure of the rotating material equalization device provided in an embodiment of the present invention;

[0025] Figure 3 A cross-sectional view of the ladder flow sorting machine provided in an embodiment of this utility model;

[0026] Figure 4 A comparison diagram of the material drop points when the baffle plate is located in different positions according to the embodiments of this utility model.

[0027] Icons: 11-Driver; 12-Shaft; 13-Baffle plate;

[0028] 2- Cascade separator; 21- Separation bed; 22- Air chamber; 23- Vibration device; 24- Discharge device; 25- Overflow weir;

[0029] 31-Conveyor; 32-Material bin. Detailed Implementation

[0030] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0031] like Figures 1 to 4 As shown, one embodiment of this utility model provides a rotary material equalization device for a coal sorting system. The coal sorting system includes a material bin 32 and a conveyor 31. The material bin 32 is located at the discharge end of the conveyor 31, and the rotary material equalization device is located above the material bin 32. The rotary material equalization device includes a driver 11, a rotating shaft 12, and a baffle plate 13. One end of the baffle plate 13 is connected to the rotating shaft 12. The driver 11 is connected to the rotating shaft 12 in a transmission connection and drives the rotating shaft 12 to rotate.

[0032] The rotating material uniformizing device is used in the coal sorting system. The coal sorting system comprises a conveyor 31, a material bin 32 and a sorting device. The conveyor 31 is generally a belt conveyor which generally comprises a driving mechanism, a belt and driven rollers and the like. The driving mechanism comprises a motor, a speed reducer and a driving roller and the like. The motor is in driving connection with the driving roller through the speed reducer. The belt is sleeved on the driving roller and the driven rollers. The driving roller is driven to rotate by the motor, thereby driving the belt to run. The material is conveyed to the belt. Under the action of the belt, the material is discharged from the end of the running direction of the conveyor 31. The material bin 32 is used for buffering the material, so that the material can be smoothly supplied, the influence of uneven material supply on the sorting process is reduced, and the stable operation of the sorting device is ensured. The material bin 32 is a cylindrical structure with an open upper end. The bottom of the material bin 32 is provided with a discharge port. The discharge port is in communication with the sorting device through a feeder. The discharge end of the conveyor 31 is arranged above the open end of the material bin 32. In use, the conveyor 31 conveys the material into the material bin 32. The material is conveyed into the sorting device by the feeder in the material bin 32 for sorting.

[0033] The rotating material uniformizing device comprises a driver 11, a rotating shaft 12 and a material blocking plate 13. The rotating material uniformizing device is arranged above the material bin 32. One end of the material blocking plate 13 is connected to the rotating shaft 12, and the other end is arranged in suspension. The driver 11 is in driving connection with the rotating shaft 12 and drives the rotating shaft 12 to rotate, thereby driving the material blocking plate 13 fixed to the rotating shaft 12 to rotate. In use, the material is discharged from the discharge end of the conveyor 31 and moves in a parabolic trajectory under the action of inertia. During the movement of the material, part of the material falls into the material bin 32 along the original trajectory, and part of the material falls on the material blocking plate 13. Under the action of the material blocking plate 13, the movement trajectory of the material is changed, so that the material output by the conveyor 31 changes from a single dropping point to multiple dropping points. Preferably, in the embodiment, in order to prevent the material from splashing out of the material bin 32 when the material contacts the material blocking plate 13, the part of the rotating shaft 12 provided with the material blocking plate 13 extends into the material bin 32 from the open end of the material bin 32.

[0034] In the embodiment, the rotating material uniformizing device is arranged above the material bin 32, so that the material changes from a single dropping point to multiple dropping points. The uniformity of the density and granularity of the material in the material bin 32 is improved. Compared with the prior art, the phenomenon of material segregation does not occur, so that the material entering the sorting device subsequently is uniform in density and granularity along the transverse end face, and the sorting effect of the sorting device is improved. Moreover, during use, at least one of the number, the arrangement position and the size and specification of the material blocking plate 13 can be adjusted to control the dropping point of the material, so as to solve the problem of material deviation of the material bin 32 and further improve the sorting effect of the sorting device.

[0035] Optionally, in the embodiment, the sorting device is a teetered bed separator 2, and the coal sorting system is a teetered bed sorting system. The teetered bed separator 2 comprises a sorting bed 21, air chambers 22, a vibrating device 23, and a discharge device 24. The air chambers 22 are arranged in plurality, and all the air chambers 22 are arranged below the sorting bed 21 along the flow direction of the material in the sorting bed 21. The sorting bed 21 is a perforated plate. The air chambers 22 are supplied with air by air fans, and the air flows upward through the sorting bed 21. The driving device is connected to the sorting bed 21 and used to drive the sorting bed 21 to vibrate, so as to loosen the bed layer and convey the material. The driving device can be a vibrating motor. The end of the sorting bed 21 is provided with a discharge port for discharging the material, and the discharge device 24 is arranged at the discharge port. The discharge device 24 comprises a discharge roller, which has a static closed state and a rotating open state. The rear end of the discharge port is provided with an overflow weir 25, which is used to accumulate a certain thickness of the material to be discharged above the discharge device 24.

[0036] The rotating material uniformizing device provided in the embodiment of the utility model, as shown in Figure 1 and Figure 2 The material baffle 13 is in the shape of a fan ring; the inner circle of the material baffle 13 is connected to the rotating shaft 12.

[0037] The rotating shaft 12 has two opposite shaft end faces and a shaft side face between the two shaft ends. In the embodiment, the material baffle 13 is preferably in the shape of a fan ring. In this way, the material baffle 13 has an inner circle and an outer circle. The inner circle of the material baffle 13 is fixedly connected to the shaft side face of the rotating shaft 12, and the outer circle of the material baffle 13 is suspended. The material baffle 13 in the shape of a fan ring can better cover each area of the material bin 32, thus ensuring that the material can be uniformly distributed and avoiding local concentration. Moreover, the material baffle 13 in the shape of a fan ring can smoothly guide the flow of the material, reduce the impact of the material on the material baffle 13, and improve the service life of the material baffle 13.

[0038] It can be understood that, in the embodiment, the material baffle 13 can also be in the shape of a long strip or a sector, which can all achieve the purpose of changing the falling point of the material discharged by the conveyor 31 in the embodiment.

[0039] The rotating material uniformizing device provided in the embodiment of the utility model, as shown in Figure 2 The material baffle 13 is downwardly inclined.

[0040] Further, in the embodiment, the material baffle 13 is also downwardly inclined, that is, the end of the material baffle 13 away from the rotating shaft 12 is inclined toward the bottom of the material bin 32. By inclining the material baffle 13, the material can slide downward on the material baffle 13 under the action of gravity, thus accelerating the flow rate of the material and reducing the residence time of the material on the material baffle 13. At the same time, the material can be more uniformly filled in the material bin 32, the uniformity of the material density and granularity is improved, and the sorting effect is improved.

[0041] Preferably, the rotation material uniformizing device has an inclination angle of the material blocking plate 13, wherein 10°≤α<90°.

[0042] In the embodiment, the rotation shaft 12 is vertically installed during installation, and the inclination angle α of the material blocking plate 13 is the included angle between the surface of the material blocking plate 13 and the horizontal plane. Since the material blocking plate 13 is preferably arc-fan-shaped, the material blocking plate 13 has a circular truncated cone structure after being assembled to the rotation shaft 12, and the inclination angle α of the material blocking plate 13 is the included angle between the generatrix of the circular truncated cone structure and the horizontal plane. By setting the inclination angle α of the material blocking plate 13 to be greater than or equal to 10° and less than 90°, the material can slide downward on the material blocking plate 13 under the action of gravity, the material flow rate is accelerated, and the residence time of the material on the material blocking plate 13 is reduced. Meanwhile, the material can be more uniformly filled in the material bin 32, the uniformity of the material density and granularity is improved, and the sorting effect is improved.

[0043] The rotation material uniformizing device provided by the embodiment of the utility model has the advantages that Figure 1 As shown in the figure, the material blocking plate 13 is provided in plurality, all the material blocking plates 13 are located on the same axial plane of the rotation shaft 12, and all the material blocking plates 13 are arranged along the circumferential direction of the rotation shaft 12.

[0044] Preferably, in the embodiment, the material blocking plate 13 is provided in plurality, all the material blocking plates 13 are located on the same plane of the rotation shaft 12, and all the material blocking plates 13 are arranged along the circumferential direction of the rotation shaft 12. Adjacent two material blocking plates 13 can be spaced or connected. By providing the plurality of material blocking plates 13, the number of falling points of the material in the material bin 32 can be further increased, the material can be more uniformly filled in the material bin 32, the uniformity of the material density and granularity is improved, and the sorting effect is improved.

[0045] The rotation material uniformizing device provided by the embodiment of the utility model has the advantages that

[0046] In the embodiment, the size specification of the material blocking plate 13 is divided into a radial size and a circumferential size. The radial size of the material blocking plate 13 is the size of the material blocking plate 13 along the radial direction of the rotation shaft 12. The circumferential size of the material blocking plate 13 is the size of the material blocking plate 13 along the circumferential direction of the rotation shaft 12. When the material blocking plate 13 is provided in plurality, the size specifications of all the material blocking plates 13 can be the same, different, or part of the material blocking plates 13 have the same size specification. Alternatively, the circumferential sizes of the material blocking plates 13 can be different, the radial sizes can be the same, or the radial sizes of the material blocking plates 13 can be different, and the circumferential sizes can be the same. As mentioned above, the material blocking plate 13 is preferably fan-ring-shaped, so the circumferential size of the material blocking plate 13 is the length of the outer circular arc of the material blocking plate 13, and the radial size of the material blocking plate 13 is the outer radius of the material blocking plate 13, that is, the outer circular radius of the fan-ring.

[0047] The rotating material uniformizing device provided in the embodiment of the utility model, all the material blocking plates 13 have at least one inclination angle.

[0048] In the embodiment, when the material blocking plates 13 are arranged in multiple, the inclination angles of the material blocking plates 13 can be the same or different. By adjusting the number of the material blocking plates 13, the size specifications and the inclination angles of all the material blocking plates 13, the material dropping point position is adjusted, the problem of material deviation of the material bin 32 is solved, and the sorting effect of the sorting equipment is further improved.

[0049] The rotating material uniformizing device provided in the embodiment of the utility model, the coal sorting system further comprises an equipment frame; the rotating material uniformizing device further comprises a mounting frame, the mounting frame is fixedly arranged on the equipment frame and located above the material bin 32, and the driver 11 is arranged on the mounting frame.

[0050] In the embodiment, the coal sorting system comprises the equipment frame, and the mounting frame for mounting the driver 11 of the rotating material uniformizing device is fixedly arranged on the equipment frame, so that the rotating material uniformizing device can be located above the material bin 32. By arranging the mounting frame to mount the driver 11, the stability of the rotating material uniformizing device during operation can be improved.

[0051] The rotating material uniformizing device provided in the embodiment of the utility model, the driver 11 is a variable frequency motor.

[0052] In the embodiment, the driver 11 is preferably a variable frequency motor, and when used, the single dropping amount of each dropping point can be determined by controlling the rotating speed of the rotating shaft 12, so as to further improve the uniformity of the material in the material bin 32, avoid the segregation of the material, solve the problem of material deviation of the material bin 32, and improve the sorting effect of the sorting equipment.

[0053] It can be understood that in the embodiment, the driver 11 can also be a hydraulic motor or a telescopic connecting rod mechanism and the like, which can also achieve the purpose of driving the rotating shaft 12 to rotate in the embodiment.

[0054] In the embodiment, a speed reducer is further arranged between the variable frequency motor and the rotating shaft 12, so as to improve the precision and stability, increase the torque, and match the load demand.

[0055] Another embodiment of the utility model further provides a ladder flow sorting system, which comprises the rotating material uniformizing device in any one of the above embodiments.

[0056] In the description of the utility model, it is necessary to explain, the direction or position relation that the term "upper", "lower" and the like indicate is based on the direction or position relation shown in the drawing, is only for the convenience of describing the utility model and simplifying the description, and is not indicate or imply that the device or element indicated must have a particular orientation, construct and operate in a particular orientation, therefore can not be understood as the limitation of the utility model. In addition, the term "first", "second" is only for the purpose of description, and can not be understood as indicating or implying relative importance.

[0057] In the description of the utility model, it is necessary to explain, unless another explicit provision and limitation, the term "installation", "communication", "connection" should be broad understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be direct communication, also can be indirectly communicated through the intermediate medium, can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances. In addition, in the description of the utility model, unless otherwise stated, the meaning of "multiple" is two or more than two.

[0058] The above is only the preferred embodiment of the utility model, and is not used to limit the utility model, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A rotating material uniformizing device for a coal sorting system, the coal sorting system comprising a material bin (32) and a conveyor (31), the material bin (32) being arranged at a discharge end of the conveyor (31), the rotating material uniformizing device being arranged above the material bin (32); the rotating material uniformizing device comprising a driver (11), a rotating shaft (12) and a material blocking plate (13); one end of the material blocking plate (13) being connected to the rotating shaft (12); the driver (11) being in driving connection with the rotating shaft (12) and driving the rotating shaft (12) to rotate. characterized in that 2. The rotating material uniformizing device according to claim 1, wherein the material blocking plate (13) is in a shape of a fan ring; an inner circle of the material blocking plate (13) being connected to the rotating shaft (12).

3. The rotating material uniformizing device according to claim 1 or 2, wherein the material blocking plate (13) is arranged in a downward inclination.

4. The rotating material uniformizing device according to any one of claims 1 to 3, wherein an inclination angle of the material blocking plate (13) is a, wherein 10°≤a<90°.

2. A rotating material uniformizing device according to claim 1, characterized in that 5. The rotating material uniformizing device according to any one of claims 1 to 4, wherein a plurality of material blocking plates (13) are arranged, all of the material blocking plates (13) being arranged on a same axial plane of the rotating shaft (12) and along a circumferential direction of the rotating shaft (12).

3. A rotating material uniformizing device according to claim 1, characterized in that 6. The rotating material uniformizing device according to any one of claims 1 to 5, wherein all of the material blocking plates (13) have at least one size specification.

4. A rotating material uniformizing device according to claim 3, characterized in that 7. The rotating material uniformizing device according to any one of claims 1 to 6, wherein all of the material blocking plates (13) have at least one inclination angle.

5. A rotating material uniformizing device according to any one of claims 1 to 4, characterized in that, 8. The coal sorting system according to claim 1, further comprising an equipment frame; the rotating material uniformizing device further comprising a mounting frame, the mounting frame being fixedly arranged on the equipment frame and above the material bin (32), the driver (11) being arranged on the mounting frame.

6. A rotating material uniformizing device according to claim 5, characterized in that 9. The coal sorting system according to claim 8, wherein the driver (11) is a variable frequency motor.

7. A rotating material uniformizing device according to claim 5, characterized in that 10. A coal sorting system comprising the rotating material uniformizing device according to any one of claims 1 to 9.

8. A rotating material uniformizing device according to any one of claims 1 to 4, characterized in that ​ 9. A rotating material uniformizing device according to any one of claims 1 to 4, characterized in that, ​ 10. A bank flow separation system characterized by, ​

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