Quartz raw material ore screening equipment

Abstract

The invention relates to quartz raw material ore screening equipment which comprises a screening barrel, multiple sets of obliquely-arranged screens are arranged in the screening barrel, discharging holes are distributed in the screening barrel in a linear array mode, a grading distance adjusting mechanism is connected to the discharging holes, the grading distance adjusting mechanism comprises a support and a feeding pipe, the feeding pipe communicates with the discharging holes, the support is arranged on the outer side of the feeding pipe, and the feeding pipe communicates with the discharging holes. Inclined plates are arranged on the support in an array mode, multiple sets of second motors are arranged on the inclined plates in a sliding mode, distributing wheels are arranged at the output ends of the second motors, the tips of the distributing wheels are located in an inner cavity of a feeding pipe, a color sorting camera is arranged at the middle rear end of the feeding pipe, and an air blowing head is arranged at the tail end of the feeding pipe. According to the screening barrel, ore raw materials can be graded according to the particle size and then conveyed into the corresponding grading and distance adjusting mechanisms, the uniformity of each grade of materials is improved, the color sorting precision is improved, the grading and distance adjusting mechanisms can adjust the gap between the two material distributing wheels according to needs, and therefore the feeding speed of color sorting is adjusted.

Description

Technical Field

[0001] The invention belongs to the technical field of quartz sorting, and specifically refers to a quartz raw material ore screening device. Background Art

[0002] The quartz ore raw materials need to be crushed before screening, and then the crushed particles are screened by the color sorter. However, the shapes and sizes of the crushed ore raw materials vary greatly, which will affect the sorting accuracy of the color sorter during sorting.

[0003] At the same time, the instability of the feed speed will also affect the sorting effect of the color sorter. Feeding speed that is too fast or too slow will affect the sorting accuracy and production efficiency. When the feed speed is too fast, the color sorter may not be able to accurately detect and judge each raw material particle, while feeding speed that is too slow will reduce production efficiency.

[0004] The above factors will make the color sorting accuracy worse, and secondary or multiple rescreening is required to improve the color sorting accuracy. Summary of the invention

[0005] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a quartz raw material ore screening device, which at least partially solves the above problems.

[0006] The technical solution adopted by the present invention is as follows: A quartz raw ore screening device proposed by the present invention includes a screening barrel, and the crushed raw ore is placed in the screening barrel for grading the raw ore by size. The screening barrel is provided with multiple groups of inclined screens, and the mesh size of the screens gradually increases from top to bottom.

[0007] Furthermore, the side wall of the screening barrel is provided with discharge holes distributed in a linear array.

[0008] Furthermore, the side wall of the screening barrel is provided with a graded distance adjusting mechanism, which is obliquely connected to the discharge hole. The graded distance adjusting mechanism includes a bracket and a feeding pipe arranged in an array. The feeding pipe is connected to the discharge hole. The position and number of the feeding pipe are adapted to the screen to ensure a smooth transition between the feeding pipe and the discharge hole. The bracket is arranged on the outside of the feeding pipe.

[0009] Furthermore, an array of inclined plates is provided on the bracket, the position and number of the inclined plates are adapted to the feeding tube, a plurality of groups of second motors are slidably provided on the inclined plates, a dividing wheel is provided at the output end of the second motor, and the tip of the dividing wheel is in the inner cavity of the feeding tube.

[0010] Furthermore, in order to adjust the distance between the second motors, a slider is provided on the inclined plate, and positioning holes are arranged in an array on the inclined plate. The slider is fixed to the second motor, and the slider can also be connected to the positioning holes by bolts.

[0011] Furthermore, a color sorting camera is provided at the middle and rear ends of the feeding tube, and an air blowing head is provided at the end of the feeding tube.

[0012] Furthermore, a material dividing hole is provided at the middle and front end of the feeding tube, a color selection slot is provided at the middle and rear end of the feeding tube, and the tip of the material dividing wheel is arranged in the inner cavity of the material dividing hole.

[0013] Furthermore, the color sorting slot is in a shape with an open upper end, the color sorting camera is located on the upper side of the color sorting slot, and the air blowing head is located at the end of the color sorting slot.

[0014] Furthermore, in order to store different types of materials separately, a material distribution frame is provided below the end of the feeding pipe, and the material distribution pipe includes a waste box and a storage box. The waste box is arranged on the side of the feeding pipe away from the air blowing head, and the storage box is arranged below the end of the feeding pipe.

[0015] Furthermore, a flange plate is provided on the outer circumferential side wall of the screening barrel, a first motor is provided on one side of the flange plate, and an eccentric wheel is provided on the output shaft of the first motor.

[0016] Furthermore, in order to enhance the vibration effect of the screening barrel, a bottom plate is provided at the lower end of the screening barrel, springs are arranged in an array between the bottom plate and the flange plate, guide columns penetrating the flange plate are arranged in an array on the bottom plate, and the bracket is arranged on the bottom plate.

[0017] Furthermore, a discharge assembly is slidably provided on the side wall of the screening barrel, and the discharge assembly includes blocking plates distributed in a linear array, and the blocking plates are slidably provided in the discharge holes.

[0018] Furthermore, in order to drive the blocking plate to slide up and down, a connecting rod is provided through the blocking plate, a positioning plate is provided on the side wall of the screening barrel, a cylinder is fixed on the positioning plate, and a telescopic rod of the cylinder is connected to the connecting rod.

[0019] The beneficial effects achieved by the present invention are as follows: the screening barrel can classify the ore raw materials according to the particle size, and the raw materials of different sizes are transported to the corresponding grading and adjusting distance mechanism for color sorting detection, thereby improving the uniformity of each level of materials to improve the screening accuracy, and the grading and adjusting distance mechanism can adjust the gap between the two material dividing wheels as needed, thereby adjusting the feeding speed during color sorting, so as to make adaptive adjustments according to the color sorting accuracy and improve the color sorting efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a front view of a quartz raw material ore screening device according to an embodiment of the present invention; Figure 2 It is an isometric side view of a quartz raw material ore screening device according to an embodiment of the present invention; Figure 3It is a cross-sectional view of a quartz raw material ore screening device according to an embodiment of the present invention; Figure 4 It is the position relationship diagram of the bracket and the dividing wheel; Figure 5 This is a fracture view of the feeding tube; Figure 6 It is a schematic diagram of the structure of the discharge component.

[0021] Among them, 1. screening barrel, 2. grading distance adjustment mechanism, 3. color sorting camera, 4. air blowing head, 5. dividing frame, 5-1. waste box, 5-2. storage box, 6. discharge assembly, 7. bottom plate, 8. flange plate, 9. spring, 10. guide column, 11. first motor, 12. eccentric wheel, 13. bracket, 14. second motor, 15. dividing wheel, 16. feeding pipe, 17. slider, 18. screen, 19. positioning hole, 20. dividing hole, 21. color sorting slot, 22. positioning plate, 23. cylinder, 24. connecting rod, 25. blocking plate, 26. discharge hole, 27. inclined plate.

[0022] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0024] In the description of the present invention, it should be understood that terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “top”, “bottom”, “inside” and “outside” indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0025] like Figure 1-Figure 3As shown, a quartz raw ore screening device proposed in an embodiment of the present invention includes a screening barrel 1, and the crushed raw ore is placed in the screening barrel 1 for grading the raw ore by size. A plurality of groups of inclined screens 18 are arranged in the screening barrel 1, and the mesh size of the screen 18 gradually increases from top to bottom, that is, the mesh diameter of the top screen 18 is the largest, and the mesh diameter of the bottom screen 18 is the smallest. Large-sized ore particles are blocked at the top, and small-sized ore particles continue to participate in screening downward, so that the ore particles in the screening space corresponding to each screen 18 are uniform in size. When the screen 18 is inclined, the ore particles will slide to the lower end of the screen 18.

[0026] like Figure 3 As shown, the side wall of the screening barrel 1 is provided with discharge holes 26 distributed in a linear array, the angle of the discharge holes 26 is adapted to the angle of the screen 18, the discharge holes 26 are preferably arranged at an angle, the number and positions of the discharge holes 26 are adapted to the screen 18, the lowest end of each level of the screen 18 is connected to the discharge holes 26, and the ore raw materials on each level of the screen 18 can roll into the discharge holes 26.

[0027] like Figure 1 and Figure 4 As shown, the side wall of the screening barrel 1 is provided with a grading distance adjusting mechanism 2, which is obliquely connected to the discharge hole 26 so that the ore raw material falls into the grading distance adjusting mechanism 2. The grading distance adjusting mechanism 2 includes a bracket 13 and an array of feeding pipes 16, the feeding pipes 16 are connected to the discharge hole 26, the positions and numbers of the feeding pipes 16 are adapted to the screen 18, so that the feeding pipes 16 and the discharge hole 26 have a smooth transition, that is, the top end of each layer of the feeding pipe 16 is highly adapted to the bottom end of each layer of the screen 18, so that the feeding pipe 16 is connected to the discharge hole 26 to take the material, so that the size of the ore material in the feeding pipe 16 is uniform, and the bracket 13 is arranged on the outside of the feeding pipe 16.

[0028] The bracket 13 is provided with an array of inclined plates 27, the position and number of the inclined plates 27 are adapted to the feeding tube 16, the inclined plates 27 are preferably set to the same angle as the feeding tube 16, and a plurality of groups of second motors 14 are slidably provided on the inclined plates 27, the position of the second motors 14 can be adjusted as needed, and a dividing wheel 15 is provided at the output end of the second motor 14, the tip of the dividing wheel 15 is in the inner cavity of the feeding tube 16, preferably, the second motor 14 is provided with two groups, and the dividing wheels 15 on the two groups of second motors 14 cooperate with each other to achieve the blocking and release of the ore material, and the front end The second motor 14 blocks the material screened out from the screening barrel 1. Every time the second motor 14 at the front rotates, the blades of the dividing wheel 15 will release a certain amount of ore materials of similar size to achieve quantitative feeding, and the second motor 14 at the rear end will block the ore materials at the front end again and then release them. The greater the distance between the two second motors 14, the longer the release time of this batch of materials, and the longer the feeding time rhythm, thereby achieving the control of the material feeding speed, and finally achieving quantitative, constant-speed and fixed-size ore materials for subsequent screening and processing.

[0029] In order to adjust the distance between the second motors 14 so as to adjust the feeding rhythm, a slider 17 is provided on the inclined plate 27, and an array of positioning holes 19 is provided on the inclined plate 27. The slider 17 is fixed to the second motor 14. The slider 17 can also be connected to the positioning holes 19 by bolts, so that the second motor 14 is fixed on the inclined plate 27. The slider 17 is fixed on the positioning holes 19 at different positions, so that the distance of the second motor 14 can be changed. The slider 17 can be disassembled and moved as needed and then re-fixed.

[0030] In order to judge the materials conveyed in a fixed quantity, fixed speed and fixed size, a color sorting camera 3 is provided at the middle and rear end of the feeding pipe 16, and an air blowing head 4 is provided at the end of the feeding pipe 16. The color sorting camera 3 uses the high-definition camera function to judge the state of the material, and uses the air blowing head 4 to remove unqualified materials.

[0031] like Figure 5 As shown, the front and middle portions of the feed pipe 16 are provided with a material distribution hole 20, and the rear and middle portions of the feed pipe 16 are provided with a color selection slot 21. Figure 3 and Figure 4 The tip of the dividing wheel 15 is arranged in the inner cavity of the dividing hole 20, and the tip of the dividing wheel 15 is arranged close to the bottom wall of the inner cavity of the dividing hole 20, so that the blades of the dividing wheel 15 can move the material in the inner cavity of the dividing hole 20 to move the material downward.

[0032] The color sorting slot 21 is in the shape of an open top, and the color sorting camera 3 is located on the upper side of the color sorting slot 21, so that the color sorting camera 3 can take pictures and make judgments on the materials in the color sorting slot 21. The air blowing head 4 is at the end of the color sorting slot 21. After the color sorting camera 3 completes the picture taking and judgment, the air blowing head 4 can blow air in a targeted manner according to the judgment result of the color sorting camera 3. When the abnormal mineral material that needs to be separated reaches the end of the color sorting slot 21, the air blowing head 4 blows air to deflect the mineral material and separate it from the normal material. The normal material will not be blown by the air blowing head 4.

[0033] In order to store different types of materials respectively, a dividing frame 5 is provided below the end of the feeding pipe 16. The dividing pipe includes a waste box 5-1 and a storage box 5-2. The waste box 5-1 is offset and arranged on the side of the feeding pipe 16 away from the air blowing head 4. The storage box 5-2 is arranged below the end of the feeding pipe 16. The ore material blown off by the air blowing head 4 falls into the waste box 5-1, and the qualified material falls into the storage box 5-2.

[0034] like Figure 1 and Figure 3 As shown, a flange plate 8 is provided on the outer circumferential side wall of the screening barrel 1, a first motor 11 is provided on one side of the flange plate 8, an eccentric wheel 12 is provided on the output shaft of the first motor 11, and the first motor 11 applies uneven centrifugal force to the screening barrel 1 under the rotation of the eccentric wheel 12, thereby driving the screening barrel 1 to vibrate.

[0035] In order to enhance the vibration effect of the screening barrel 1 , a bottom plate 7 is provided at the lower end of the screening barrel 1 , springs 9 are arranged in an array between the bottom plate 7 and the flange plate 8 , guide columns 10 penetrating the flange plate 8 are arranged in an array on the bottom plate 7 , and a bracket 13 is arranged on the bottom plate 7 .

[0036] like Figure 3 and Figure 6 As shown, in order to prevent the ore material from falling into the feed pipe 16 before screening is completed, a discharge assembly 6 is slidably provided on the side wall of the screening barrel 1. The discharge assembly 6 includes blocking plates 25 distributed in a linear array, and the blocking plates 25 are slidably provided in the discharge hole 26.

[0037] In order to drive the blocking plate 25 to slide up and down, a connecting rod 24 is penetrated by the blocking plate 25, and a positioning plate 22 is provided on the side wall of the screening barrel 1. A cylinder 23 is fixed on the positioning plate 22, and the telescopic rod of the cylinder 23 is connected to the connecting rod 24. When the cylinder 23 is telescopic, it will drive the connecting rod 24 to move up and down, thereby driving the blocking plate 25 to slide up and down, and blocking the discharge hole 26.

[0038] During specific operation, the crushed material is placed on top of the screening barrel 1, and the first motor 11 is started. The first motor 11 drives the eccentric wheel 12 to rotate, and the eccentric wheel 12 applies uneven periodic centrifugal force to the screening barrel 1, so that the screening barrel 1 compresses the spring 9 in the direction of the guide column 10 and vibrates back and forth. When the screening barrel 1 vibrates, the ore material in the top screen 18 is initially screened, and the material with a particle diameter smaller than the mesh of the current screen 18 falls onto the next layer of the screen 18, and the material with a particle diameter larger than the mesh of the current screen 18 remains in the current area, and the material falling below continues to be sorted step by step under the action of other screens 18 with different mesh sizes, so that the size of the ore material in each layer of the screen 18 is relatively uniform.

[0039] When the screening is completed, the cylinder 23 is opened, the cylinder 23 drives the connecting rod 24 to move, and the connecting rod 24 drives each blocking plate 25 to slide upward along the discharge hole 26, so that the materials on each level of the screen 18 are connected to the feeding pipe 16.

[0040] Under the action of gravity, the material falls into the feeding pipe 16 along the inclined screen 18 until it is blocked by the dividing wheel 15 on the first motor 11. When the first motor 11 rotates at a fixed frequency, the dividing wheel 15 delivers a fixed amount of material at a fixed frequency. The amount of material is related to the diameter of the feeding pipe 16 and the dividing wheel 15.

[0041] The conveyed quantitative material continues to move downward along the feeding pipe 16 to the dividing wheel 15 on the second motor 14, and is blocked by the dividing wheel 15 here. The time of movement between them is the feeding rhythm. The greater the distance between the first motor 11 and the second motor 14, the longer the time for the material to move, the longer the feeding rhythm, and the slower the feeding speed, thereby achieving constant speed feeding (this speed is not the moving speed of the material). By controlling the duration of the production rhythm to adapt to the color sorting camera 3, when the sorting accuracy of the color sorting camera 3 is poor, this duration can be adjusted to improve the resolution accuracy.

[0042] The distance between the first motor 11 and the second motor 14 can be adjusted by the slider 17 . The adjustment can be completed by removing the slider 17 from the current positioning hole 19 and sliding it to another positioning hole 19 to be fixed.

[0043] When the material is conveyed to the color sorting slot 21 by the dividing wheel 15 on the second motor 14, the color sorting camera 3 on the side of the color sorting slot 21 starts to work. At this time, the size of the materials is close, and the feeding quantity and beat are also adapted to the color sorting camera 3, so the color sorting accuracy can be improved and unqualified products can be accurately judged.

[0044] When the material reaches the end of the color sorting slot 21, the air blowing head 4 blows air to the unqualified products according to the judgment result of the color sorting camera 3, so that the unqualified products deviate from the original moving trajectory and fall into the waste box 5-1 below, while the qualified products fall directly into the storage box 5-2.

[0045] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0046] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A quartz raw material ore screening device, characterized in that: include: A screening barrel (1) is used to classify raw materials according to size, wherein a plurality of inclined screens (18) are provided in the screening barrel (1), and the mesh size of the screens (18) increases gradually from top to bottom; The grading distance adjustment mechanism (2) is obliquely connected to the discharge holes (26) distributed in an array on the screening barrel (1), and comprises a bracket (13) and a feed pipe (16) arranged in an array, wherein the feed pipe (16) is communicated with the discharge holes (26), and the position and number of the feed pipes (16) are adapted to the screen (18) so that the feed pipe (16) and the discharge holes (26) can smoothly transition, wherein the bracket (13) is arranged on the outside of the feed pipe (16), and an array of inclined plates (27) is arranged on the bracket (13), and the position and number of the inclined plates (27) are adapted to the feed pipe (16), and a plurality of groups of second motors (14) are slidably arranged on the inclined plates (27), and a distribution wheel (15) is arranged at the output end of the second motor (14), and the tip of the distribution wheel (15) is located in the inner cavity of the feed pipe (16); The color sorting camera (3) is arranged at the middle and rear end of the feeding pipe (16), and an air blowing head (4) is arranged at the end of the feeding pipe (16).

2. The quartz raw material ore screening equipment according to claim 1, characterized in that: A flange plate (8) is provided on the outer circumferential side wall of the screening barrel (1), a first motor (11) is provided on one side of the flange plate (8), and an eccentric wheel (12) is provided on the output shaft of the first motor (11).

3. The quartz raw material ore screening equipment according to claim 2, characterized in that: A bottom plate (7) is provided at the lower end of the screening barrel (1), springs (9) are arranged in an array between the bottom plate (7) and the flange plate (8), guide columns (10) penetrating the flange plate (8) are arranged in an array on the bottom plate (7), and the bracket (13) is arranged on the bottom plate (7).

4. The quartz raw material ore screening equipment according to claim 1, characterized in that: A slider (17) is provided on the inclined plate (27), the slider (17) is fixed to the second motor (14), and an array of positioning holes (19) is provided on the inclined plate (27), the slider (17) is connected to the positioning holes (19) by means of bolts.

5. The quartz raw material ore screening equipment according to claim 4, characterized in that: A material distribution hole (20) is provided at the middle front end of the feeding tube (16), a color selection slot (21) is provided at the middle rear end of the feeding tube (16), and the tip of the material distribution wheel (15) is arranged in the inner cavity of the material distribution hole (20).

6. The quartz raw material ore screening equipment according to claim 5, characterized in that: The color sorting camera (3) is located above and to the side of the color sorting slot (21), and the air blowing head (4) is located at the end of the color sorting slot (21).

7. The quartz raw material ore screening equipment according to claim 1, characterized in that: A material discharge assembly (6) is slidably disposed on the side wall of the screening barrel (1), wherein the material discharge assembly (6) comprises blocking plates (25) distributed in a linear array, and wherein the blocking plates (25) are slidably disposed in the material discharge holes (26).

8. The quartz raw material ore screening equipment according to claim 7, characterized in that: A connecting rod (24) is provided through the blocking plate (25), a positioning plate (22) is provided on the side wall of the screening barrel (1), a cylinder (23) is fixed on the positioning plate (22), and a telescopic rod of the cylinder (23) is connected to the connecting rod (24).

9. The quartz raw material ore screening equipment according to claim 1, characterized in that: A material distribution frame (5) is provided below the end of the feed pipe (16), and the material distribution pipe comprises a waste box (5-1) and a storage box (5-2). The waste box (5-1) is arranged at a side of the feed pipe (16) away from the air blowing head (4), and the storage box (5-2) is arranged below the end of the feed pipe (16).

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