High-yield grading and screening device for winnowing and purifying quartz sand

Abstract

The utility model discloses a high-yield grading screening device for winnowing and purifying quartz sand, which comprises a machine body and supporting legs, a plurality of groups of screening discs are fixedly arranged at the middle position in the machine body, and the middle position of the surface of each screening disc is rotatably connected with a driving shaft. According to the quartz sand screening device, the screening disc and the scraping plate are adopted, and quartz sand falling onto the surface of the screening disc can be continuously pushed by the scraping plate, so that the accumulated quartz sand is flattened, the quartz sand can make full contact with the surface of the screening disc, and then screening operation can be effectively conducted on the quartz sand through the screening holes; the multiple sets of screening discs are arranged, so that multi-stage screening operation can be achieved, quartz sand on the surfaces of the screening discs can be subjected to long-time multi-cycle screening treatment, the overall collection rate can be effectively improved, the situation that different quartz sand is mixed together and consequently mistaken discharging is caused is avoided, and the overall treatment effect is improved; the screening device has the advantages of sufficient screening and good screening effect.

Description

Technical Field

[0001] The utility model relates to the technical field of quartz sand processing devices, in particular to a high-yield grading and screening device for quartz sand purification by air selection. Background Art

[0002] Quartz sand is quartz particles made by crushing quartz stone. Quartz stone is a non-metallic mineral, a hard, wear-resistant, chemically stable silicate mineral. Quartz sand is made from natural quartz ore. Quartz stone mined from mines is processed and processed by crushing, screening, washing and other processes.

[0003] The application number in the existing public technology is: CN201920818713.7 A wind selection structure for a quartz sand drying, screening and packaging integrated machine, including a bottom plate, a first discharge barrel, a second discharge barrel, a third discharge barrel, a barrel body, a wiring hole and a mounting box, the barrel body is arranged directly above the bottom plate, the left end of the barrel body is connected with the third discharge barrel, the second discharge barrel and the first discharge barrel in sequence from top to bottom, the right end of the barrel body is connected with the second discharge barrel and the first discharge barrel in sequence from top to bottom, the middle of the upper end of the bottom plate is installed with a mounting box, and the interior of the mounting box is provided with a first controller, a second controller and a battery. The utility model solves the problems of the inconvenience of installation of the existing wind selection structure for quartz sand and the single quartz sand screening level of the wind selection structure for quartz sand by setting a fixed seat, an L bracket, a bottom plate, a small hole filter plate, a vibrator, a large hole filter plate, a medium hole filter plate, a guide plate, a first controller, a second controller, a fan, bolts, nuts and a limit plate structure.

[0004] However, the above patent still has certain disadvantages when in use: when performing air separation, it will first add a large amount of quartz sand through the feed port. At this time, a large amount of quartz sand will fall down in a concentrated manner, which will make the contact with the wind blown by the fan insufficient, thereby causing the quartz sand far away from the wind and in the center position to be unable to be effectively processed, resulting in unsatisfactory processing effect of the quartz sand. After the quartz sand is air-separated, it uses multiple groups of inclined filter plates to grade and screen the quartz sand. However, the inclined filter plates allow the quartz sand to slide only once. At this time, a large amount of quartz sand wrapped around each other can easily carry away and discharge the unqualified parts, so that the quartz sand does not have sufficient time and sufficient area to contact the filter plate, further limiting the overall screening effect, and the overall use effect is not very good.

[0005] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0006] 1. Technical issues to be resolved

[0007] In view of the shortcomings of the prior art, the utility model provides a high-yield grading and screening device for air-selected and purified quartz sand, which has the advantages of sufficient screening, dispersed feeding and good screening effect, thereby solving the problems in the above-mentioned background technology.

[0008] (II) Technical solution

[0009] In order to achieve the above advantages of sufficient screening, dispersed feeding and good screening effect, the specific technical scheme adopted by the utility model is as follows:

[0010] A high-yield grading and screening device for quartz sand purification by air selection, comprises a body and supporting legs, a plurality of screening discs are fixedly installed in the middle position inside the body, a driving shaft is rotatably connected to the middle position of the surface of the screening disc, one end of the driving shaft passes through one side of the body and is connected to a brake motor, a plurality of connecting rods are installed around the surface of the driving shaft, a scraper is fixedly installed at the bottom of the connecting rod, the bottom end of the scraper abuts against the top surface of the screening disc, a docking groove is provided at one side of the top of the screening disc, a sealing plate is slidably connected to the top of the docking groove, one end of the sealing plate passes through one side of the body and is connected to an electric cylinder, the electric cylinder is located on the surface of one side of the body, a collecting box is slidably connected to the bottom of the docking groove, a plurality of sieve holes are provided around the top surface of the screening disc, and the size of the sieve holes gradually decreases.

[0011] Furthermore, a storage box is fixedly installed in the middle position on the top of the machine body, a feeding port is opened at the contact position between the bottom of the storage box and the top surface of the machine body, a plurality of dispersion cones are evenly installed at the bottom end of the feeding port, an adjusting cavity is opened at the contact position between the top surface of the feeding port and the surface of the machine body, a sealing plate is slidably connected to the inside of the adjusting cavity, one end of the sealing plate is provided with a spring installed at the inside of the adjusting cavity, and two ends of the spring are respectively fixed to one side of the sealing plate and the inner wall of the adjusting cavity, a contact plate is fixedly installed at one side of the top of the sealing plate, and the contact plate slides with the top surface of the machine body, a motor is fixedly installed at one side of the contact plate at the surface of the storage box, an eccentric wheel is connected to the output end of the motor, and the eccentric wheel abuts against the contact plate.

[0012] Furthermore, an air outlet pipe is installed through the top of one side of the body surface, a wind grid filter and a guide plate are installed inside the air outlet pipe respectively, and one end of the air outlet pipe passes through one side of the body and is connected to the fan.

[0013] Furthermore, a discharge barrel is installed through the top of the other side surface of the machine body.

[0014] Furthermore, support legs are symmetrically installed on both sides of the bottom of the body.

[0015] Furthermore, a feed port is provided at the middle position of the top of the storage box.

[0016] Furthermore, the discharge barrel and the air outlet pipe are on the same straight line.

[0017] Furthermore, the dispersion cone is made of metal material.

[0018] (III) Beneficial effects

[0019] Compared with the prior art, the utility model provides a high-yield grading and screening device for quartz sand purification by air selection, which has the following beneficial effects:

[0020] (1) The utility model adopts a screening disc and a scraper. The quartz sand that falls onto the surface of the screening disc will be continuously pushed by the scraper, so as to flatten the accumulated quartz sand, so that the quartz sand can fully contact the surface of the screening disc, and then the sieve holes can effectively screen the quartz sand. In addition, the screening disc is provided with multiple groups, so that multi-stage screening operation can be realized, and the quartz sand on the surface of the screening disc can be screened for a long time and multiple cycles, which can effectively improve the overall collection rate, avoid different quartz sands from mixing together and causing erroneous discharge, improve the overall processing effect, and have the advantages of sufficient screening and good screening effect.

[0021] (2) The utility model adopts a motor, a sealing plate and a dispersion cone. During the subsequent processing, the speed of the sealing plate can be controlled by controlling the running speed of the motors on both sides. When the sealing plates move away, the quartz sand inside the storage box can be discharged smoothly, and when they are close to each other, the feeding port will be closed again. In this way, it is possible to add a small amount of quartz sand multiple times, avoiding the situation where a large amount of quartz sand is concentratedly introduced and part of it cannot be processed, thereby ensuring the air selection effect of the quartz sand. When the quartz sand falls, it will collide with the dispersion cone. At this time, the quartz sand can be dispersed for a second time through the impact force, thereby improving the overall dispersion, and then improving the overall contact effect with the wind discharged by the fan, thereby improving the overall air selection effect, and having the advantage of feeding dispersion. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 This is a structural schematic diagram of a high-yield grading and screening device for quartz sand purification by air separation proposed by the utility model;

[0024] Figure 2 It is a structural schematic diagram of the screening disc of the utility model;

[0025] Figure 3 It is a structural schematic diagram of the dispersion cone of the utility model;

[0026] Figure 4 It is a structural schematic diagram of a collection box of the utility model.

[0027] In the figure:

[0028] 1. Machine body; 2. Adjustment chamber; 3. Spring; 4. Contact plate; 5. Eccentric wheel; 6. Motor; 7. Sealing plate; 8. Feed inlet; 9. Storage box; 10. Feeding port; 11. Dispersion cone; 12. Air outlet pipe; 13. Wind screen filter; 14. Guide plate; 15. Fan; 16. Sealing plate; 17. Collecting box; 18. Electric cylinder; 19. Support leg; 20. Docking groove; 21. Screening disc; 22. Brake motor; 23. Drive shaft; 24. Screen hole; 25. Connecting rod; 26. Scraper; 27. Discharging barrel. DETAILED DESCRIPTION

[0029] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementation methods and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0030] According to an embodiment of the utility model, a high-yield grading and screening device for quartz sand purification by air selection is provided.

[0031] The present invention is now further described in conjunction with the accompanying drawings and specific implementation methods. Figure 1-4As shown, according to an embodiment of the utility model, a high-yield grading and screening device for quartz sand purification by air separation comprises a machine body 1 and a supporting leg 19, wherein a plurality of screening discs 21 are fixedly installed at a middle position inside the machine body 1, a driving shaft 23 is rotatably connected to the middle position of the surface of the screening disc 21, one end of the driving shaft 23 passes through one side of the machine body 1 and is connected to a brake motor 22, a plurality of connecting rods 25 are installed around the surface of the driving shaft 23, a scraper 26 is fixedly installed at the bottom position of the connecting rod 25, the bottom end of the scraper 26 abuts against the top surface position of the screening disc 21, a docking groove 20 is provided at one side position of the top of the screening disc 21, and the top position of the docking groove 20 is A sealing plate 16 is slidably connected to the body 1, one end of the sealing plate 16 passes through one side of the body 1 and is connected to the electric cylinder 18, the electric cylinder 18 is located on the surface of one side of the body 1, and a collecting box 17 is slidably connected to the bottom of the docking groove 20. A plurality of groups of sieve holes 24 are arranged around the top surface of the screening disk 21, and the size of the sieve holes 24 gradually decreases. The sieve holes 24 are arranged to perform multiple graded screening operations on the quartz sand according to different sizes, which is convenient for subsequent use. The sealing plate 16 and the collecting box 17 are arranged to collect and use the remaining quartz sand after the screening is completed, which is convenient for subsequent processing and reduces the labor intensity of personnel.

[0032] In one embodiment, a storage box 9 is fixedly installed at the middle position on the top of the body 1, a feeding port 10 is opened at the bottom of the storage box 9 in contact with the top surface of the body 1, and a plurality of groups of dispersion cones 11 are evenly installed at the bottom end of the feeding port 10. An adjusting chamber 2 is opened at the top of the feeding port 10 in contact with the surface of the body 1, and a sealing plate 7 is slidably connected to the inside of the adjusting chamber 2. A spring 3 is installed at one end of the sealing plate 7 located inside the adjusting chamber 2, and the two ends of the spring 3 are respectively fixed to one side of the sealing plate 7 and the inner wall of the adjusting chamber 2, and a contact plate 4 is fixedly installed at one side of the top of the sealing plate 7, and the contact plate 4 is connected to the adjusting chamber 2. The touch plate 4 slides with the top surface of the body 1, and a motor 6 is fixedly installed on one side of the contact plate 4 at the surface of the storage box 9. An eccentric wheel 5 is connected to the output end of the motor 6, and the eccentric wheel 5 is in contact with the contact plate 4. The rotation speed of the eccentric wheel 5 can be changed by controlling the rotation speed of the motor 6, so that the eccentric wheel 5 can adjust the moving speed of the contact plate 4. In this way, the sealing plate 7 can be adjusted, so that the addition amount and addition gap of quartz sand can be adjusted, and small-scale and multiple addition operations can be realized to avoid incomplete air separation caused by large-scale introduction, thereby ensuring the overall processing effect.

[0033] In one embodiment, an air outlet duct 12 is installed through the top of one side surface of the body 1, and a wind grid filter 13 and a guide plate 14 are installed inside the air outlet duct 12 respectively. One end of the air outlet duct 12 passes through one side of the body 1 and is connected to the fan 15. The wind grid filter 13 and the guide plate 14 are arranged to guide the airflow output by the fan 15 to ensure that it can smoothly and fully act on the falling quartz sand, thereby realizing the air selection operation.

[0034] In one embodiment, a discharge barrel 27 is installed through the top of the other side surface of the machine body 1. The discharge barrel 27 is provided to discharge the impurities selected by wind.

[0035] In one embodiment, support legs 19 are symmetrically installed on both sides of the bottom of the body 1, and the entire device can be fixed by the support legs 19, so as to enhance the overall stability in use.

[0036] In one embodiment, a feed port 8 is provided at the middle position of the top of the storage box 9. The provision of the feed port 8 facilitates the addition of quartz sand to be processed and facilitates subsequent processing.

[0037] In one embodiment, the discharge barrel 27 and the air outlet pipe 12 are in the same straight line, and the positions of the discharge barrel 27 and the air outlet pipe 12 are set to ensure that the impurities selected by the air can be discharged smoothly.

[0038] In one embodiment, the dispersion cone 11 is made of metal material to ensure the use strength of the dispersion cone 11, avoid damage when it is impacted, and ensure the use effect.

[0039] Working principle: In actual use, personnel can add the quartz sand that needs to be processed to the internal position of the storage box 9 through the feed port 8, and then in the subsequent processing, the speed of movement of the blocking plate 7 can be controlled by controlling the running speed of the motors 6 on both sides. When the blocking plate 7 moves away, the quartz sand inside the storage box 9 can be discharged smoothly, and when they are close to each other, the feed port 10 will be closed again. In this way, a small amount of quartz sand can be added multiple times, avoiding the situation where a large amount of quartz sand is concentratedly introduced and some of it cannot be processed, thereby ensuring the air selection effect of the quartz sand, and when the quartz sand falls, it will collide with the dispersion cone 11. At this time, the quartz sand can be dispersed for a second time through the impact force, thereby improving the overall dispersion, and then improving the overall contact effect with the wind discharged by the fan 15, thereby improving the overall air selection effect. During air selection, the fan 15 can introduce air into the outlet pipe 12. At this time, the airflow passes through the guide plate 14 and the wind grid The filter screen 13 acts on the falling powdered quartz sand particles at a certain wind speed. Under the combined force of vertical gravity and lateral wind force, the powdered quartz sand particles fall onto the screening plate 21 below according to the size of the particles. The lighter mica, impurities, dust, etc. will be discharged through the discharge barrel 27 due to the differences in gravity, structural shape, etc., to achieve the wind selection and purification operation of the quartz sand. Then, the quartz sand falling on the surface of the screening plate 21 will be continuously pushed by the scraper 26, so as to flatten the accumulated quartz sand. The quartz sand can fully contact the surface of the screening disc 21, so that the sieve holes 24 can effectively screen the quartz sand, and the screening disc 21 is provided with multiple groups, so that multi-stage screening operation can be realized, and the quartz sand on the surface of the screening disc 21 can be screened for a long time and multiple cycles, which can effectively improve the overall collection rate, avoid different quartz sands from mixing together and causing erroneous discharge, and improve the overall processing effect. The device as a whole has the advantages of sufficient screening, dispersed feeding, and good screening effect.

[0040] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-yield grading and screening device for quartz sand purification by air separation, comprising a body (1) and supporting legs (19), characterized in that: A plurality of screening discs (21) are fixedly installed in the middle position inside the machine body (1); a driving shaft (23) is rotatably connected to the middle position of the surface of the screening disc (21); one end of the driving shaft (23) passes through one side of the machine body (1) and is connected to a brake motor (22); a plurality of connecting rods (25) are installed around the surface of the driving shaft (23); a scraper (26) is fixedly installed at the bottom position of the connecting rod (25); the bottom end of the scraper (26) abuts against the top surface position of the screening disc (21); A docking groove (20) is provided at one side of the top of the plate (21); a sealing plate (16) is slidably connected to the top of the docking groove (20); one end of the sealing plate (16) passes through one side of the machine body (1) and is connected to an electric cylinder (18); the electric cylinder (18) is located on the surface of one side of the machine body (1); a collecting box (17) is slidably connected to the bottom of the docking groove (20); and a plurality of groups of sieve holes (24) are provided around the top surface of the screening plate (21); the size of the sieve holes (24) gradually decreases.

2. A high-yield grading and screening device for quartz sand purification by air separation according to claim 1, characterized in that: A material storage box (9) is fixedly installed at the middle position of the top of the machine body (1); a feeding port (10) is provided at the bottom of the material storage box (9) at a position where the bottom contacts the top surface of the machine body (1); a plurality of groups of dispersion cones (11) are evenly installed at the bottom end of the feeding port (10); an adjustment chamber (2) is provided at the top of the feeding port (10) at a position where the top of the feeding port (10) contacts the surface of the machine body (1); a sealing plate (7) is slidably connected to the inside of the adjustment chamber (2); one end of the sealing plate (7) is located in the adjustment chamber (2). A spring (3) is installed at an internal position, and the two ends of the spring (3) are respectively fixed to one side of the sealing plate (7) and the inner wall of the regulating chamber (2); a contact plate (4) is fixedly installed at one side of the top of the sealing plate (7), and the contact plate (4) slides with the top surface of the body (1); a motor (6) is fixedly installed at one side of the contact plate (4) on the surface of the storage box (9); an eccentric wheel (5) is connected to the output end of the motor (6), and the eccentric wheel (5) is in contact with the contact plate (4).

3. A high-yield grading and screening device for quartz sand purification by air separation according to claim 1, characterized in that: An air outlet pipe (12) is installed through the top of one side surface of the machine body (1), a wind screen filter (13) and a guide plate (14) are installed inside the air outlet pipe (12), and one end of the air outlet pipe (12) passes through one side of the machine body (1) and is connected to a fan (15).

4. A high-yield grading and screening device for quartz sand purification by air separation according to claim 1, characterized in that: A discharge cylinder (27) is installed through the top of the other side surface of the machine body (1).

5. The high-yield grading and screening device for quartz sand purification by air separation according to claim 1, characterized in that: Support legs (19) are symmetrically mounted on both sides of the bottom of the machine body (1).

6. A high-yield grading and screening device for quartz sand purification by air separation according to claim 2, characterized in that: A feed opening (8) is provided at the middle position of the top of the material storage box (9).

7. A high-yield grading and screening device for quartz sand purification by air separation according to claim 4, characterized in that: The discharge cylinder (27) and the air outlet pipe (12) are located on the same straight line.

8. A high-yield grading and screening device for quartz sand purification by air separation according to claim 2, characterized in that: The dispersion cone (11) is made of metal material.

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