Quartz sand cleaning and dewatering screen

Abstract

The utility model discloses a quartz sand cleaning and dewatering screen, which belongs to the field of mineral cleaning and comprises a cleaning box and a dewatering cylinder, the cleaning box and the dewatering cylinder are obliquely arranged and are opposite in inclination direction, and the oblique upper ends of the cleaning box and the dewatering cylinder are respectively provided with a sand outlet and a sand inlet end. An overflow end and a sand discharging end are arranged at the inclined lower ends of the cleaning box and the dewatering barrel respectively, a spiral conveying sand washing paddle is rotationally arranged in the cleaning box, a water spraying assembly is fixedly arranged above the spiral conveying sand washing paddle, the dewatering barrel is rotationally connected with the sand inlet end through a rotating bearing, and the dewatering barrel can conduct centrifugal dewatering under the driving effect of a driving unit; and a water retaining cylinder is arranged outside the dewatering cylinder.

Description

Technical Field

[0001] This utility model relates to the field of mineral cleaning, specifically to a quartz sand cleaning and dewatering screen. Background Technology

[0002] Quartz sand is a granular material made from natural quartz ore through crushing, screening, and washing. Its main component is silicon dioxide, and it has the characteristics of high hardness, high melting point, and strong chemical stability. It is widely used in industry, construction, water treatment and other fields.

[0003] After quartz sand is mined, impurities such as clay, dust, and other contaminants need to be removed from its surface. This is usually done by washing with water. Therefore, after washing, the surface moisture of the quartz sand needs to be separated to improve its purity and usability. A washing and dewatering screen is required during the washing and dewatering process.

[0004] Traditional dewatering methods often utilize vibrating inclined screens or centrifugal devices. Centrifugal dewatering devices typically use vertically arranged dewatering cylinders with a movable dewatering tank containing a screen inside. Quartz sand is poured into the dewatering tank, and after dewatering is complete, the dewatering tank is removed from the dewatering cylinder, the quartz sand is poured out, and the next dewatering cycle begins. This results in slow feeding and unloading speeds for the quartz sand, affecting dewatering efficiency. Furthermore, when the dewatering cylinder has been used for a long time, dirt accumulates inside, making quick cleaning inconvenient. Utility Model Content

[0005] To address the technical problems of centrifugal dewatering devices, most of which use vertically arranged dewatering cylinders with a movable dewatering tank containing a screen, where quartz sand is poured into the tank and dewatered, the tank is removed from the cylinder after dewatering, and the quartz sand is poured out for the next dewatering cycle, resulting in slow feeding and unloading speeds of the quartz sand and affecting dewatering efficiency, and the difficulty in quickly cleaning the cylinder after prolonged use when dirt accumulates inside, this invention provides a quartz sand cleaning and dewatering screen.

[0006] A quartz sand washing and dewatering screen includes a washing tank and a dewatering cylinder. The washing tank and the dewatering cylinder are both inclined in opposite directions. The upper inclined ends of the washing tank and the dewatering cylinder are respectively provided with a sand outlet and a sand inlet. The lower inclined ends of the washing tank and the dewatering cylinder are respectively provided with an overflow end and a sand discharge end. A spiral conveyor sand washing blade is rotatably installed inside the washing tank. A water spraying component is fixedly installed above the spiral conveyor sand washing blade. The dewatering cylinder is rotatably connected to the sand inlet end through a rotary bearing. The dewatering cylinder can perform centrifugal dewatering under the driving action of a drive unit. A water baffle is provided outside the dewatering cylinder.

[0007] Furthermore, a water storage tank and a water receiving tank are respectively installed below the washing tank and the dehydration drum. Several support frames are fixedly installed on the top of the washing tank. Each support frame is equipped with a branch water pipe. Several high-pressure nozzles are connected to the branch water pipes. The main washing pipe is connected to the water storage tank. The main washing pipe is connected to the branch water pipes and is also equipped with a water pump.

[0008] Furthermore, the sand outlet is installed through the bottom wall of the inclined upper part of the washing tank, and an inclined guide plate is fixedly installed on the inner wall of the sand inlet. The lower end of the inclined guide plate is close to the dewatering cylinder, and a sand receiving port is installed through the top of the guide plate. The sand receiving port is located directly below the sand outlet.

[0009] Furthermore, triangular baffles are fixedly installed on both sides of the top wall of the overflow end, and a wastewater tank is movably installed below the overflow end. The baffle cylinder is also inclined, and the inclination arc is consistent with that of the dewatering cylinder. Its outer wall is an arc-shaped structure, and a water outlet is opened at the bottom of the arc-shaped structure. The baffle cylinder can guide the water thrown out by the dewatering cylinder to the water receiving tank below.

[0010] Furthermore, the dewatering cylinder includes connecting ends at both ends and a screen end in the middle. The outer walls of both connecting ends are fixedly equipped with rollers, and the rollers are rotatably connected to the ground by support seats. The screen end can be used for water to be thrown out, and a sand collection box is movably installed below the sand discharge end.

[0011] Furthermore, the drive unit includes a large gear mounted on the outer wall of the connection end, with a small gear meshing with it. Another support frame is fixedly mounted on the ground. Both the support frame and the outer wall of the cleaning tank are equipped with drive motors via mounting brackets. The small gear and the spiral conveyor sand washing slurry are both fixedly mounted on the output end of the drive motor.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: After the quartz sand is first subjected to high-pressure spray washing inside the washing tank, the quartz sand with impurities washed away enters the dewatering cylinder and is centrifugally dewatered by centrifugal force. During the dewatering process, the quartz sand flows from the sand inlet end to the sand outlet end, and the centrifuged water flies along the outer wall of the screen end to the inner wall of the baffle cylinder, and falls into the water receiving tank through the outlet below along the inner wall of the baffle cylinder. During the entire dewatering process, there is no need to stop the dewatering process to complete the feeding and discharging of the quartz sand. Compared with the vertical dewatering cylinder, it has the advantage of high efficiency. Moreover, its separate design of the dewatering cylinder and the baffle cylinder allows the cleaning brush rod to be easily inserted into the gap between the two to brush the outer wall of the dewatering cylinder and the inner wall of the baffle cylinder, making it easy to clean. Attached Figure Description

[0013] Figure 1 This is a front view schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a top view of the cleaning box 1 of this utility model;

[0015] Figure 3 This is a top view of the dehydration cylinder 2 of this utility model;

[0016] Figure 4 This is a side view of the water-blocking cylinder 11 of this utility model.

[0017] In the diagram: 1. Washing tank; 2. Dewatering cylinder; 3. Sand outlet; 4. Sand inlet; 5. Overflow end; 6. Sand discharge end; 7. Spiral conveyor for washing sand; 8. Water spray assembly; 9. Rotary bearing; 10. Drive unit; 11. Water baffle; 12. Water storage tank; 13. Water receiving tank; 14. Support frame; 15. Diverter pipe; 16. High-pressure nozzle; 17. Main washing pipe; 18. Water pump; 19. Guide plate; 20. Sand inlet; 21. Triangular water baffle; 22. Wastewater tank; 23. Connecting end; 24. Screen end; 25. Idler roller; 26. Support base; 27. Sand collection box; 28. Large gear; 29. ​​Small gear; 30. Drive motor. Detailed Implementation

[0018] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0019] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of the utility model described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0020] In this invention, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0021] Furthermore, some of the aforementioned terms, besides indicating location or positional relationships, may also have other meanings. For example, the term "above" may, in certain circumstances, indicate a dependency or connection. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances. Additionally, the term "multiple" should mean two or more.

[0022] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments of the present invention can be combined with each other. The following will refer to the accompanying drawings. Figures 1-4 The present invention will be described in detail with reference to the embodiments.

[0023] A quartz sand washing and dewatering screen includes a washing tank 1 and a dewatering cylinder 2. The washing tank 1 and the dewatering cylinder 2 are both inclined in opposite directions. A water storage tank 12 and a water receiving tank 13 are respectively provided below the washing tank 1 and the dewatering cylinder 2. The bottom of the washing tank 1 is open. Quartz sand is poured into the washing tank 1 from the inclined lower end. Under the washing and conveying action of the spiral conveyor washing sand slurry 7, and with the help of the water spraying component 8, high-pressure washing is achieved. The impurities that are washed away remain at the inclined lower end, and the washed quartz sand enters the dewatering cylinder 2 through the sand outlet 3 for dewatering.

[0024] The washing tank 1 has a sand outlet 3 at its inclined upper end, which penetrates the bottom wall of the inclined upper end of the washing tank 1. The washed quartz sand is transported to the sand outlet 3 by the spiral agitation of the spiral conveyor sand washing impeller 7, and falls from the sand outlet 3 into the sand receiving port 20 below. The washing tank 1 has an overflow end 5 at its inclined lower end. Triangular baffles 21 are fixedly installed on both sides of the top wall of the overflow end 5. A wastewater tank 22 is movably installed below the overflow end 5. The triangular baffles 21 can block the water and prevent it from overflowing from the two side walls of the inclined lower end. Instead, it can only overflow from the overflow end 5, and impurities overflow into the wastewater tank 22 along with the sewage.

[0025] Several support frames 14 are fixedly installed at the top of the cleaning tank 1. A spiral conveyor sand washing slurry 7 is rotatably installed inside the cleaning tank 1. A water spraying assembly 8 is fixedly installed above the spiral conveyor sand washing slurry 7. The water spraying assembly 8 includes a water distribution pipe 15 installed on each support frame 14. Several high-pressure nozzles 16 are connected to each other on the water distribution pipe 15. A main cleaning pipe 17 is connected to the water storage tank 12. The main cleaning pipe 17 is connected to the several water distribution pipes 15. A water pump 18 is also installed on the main cleaning pipe 17.

[0026] A drive motor 30 is mounted on the outer wall of the cleaning tank 1 via a mounting bracket, and the spiral conveyor sand washing slurry 7 is fixedly mounted on the output end of the drive motor 30. When the drive motor 30 is started, it drives the spiral conveyor sand washing slurry 7 to rotate, thereby rotating and agitating the quartz sand for cleaning while simultaneously conveying the quartz sand upwards at an inclined direction.

[0027] Start the water pump 18 so that the water inside the water tank 12 can be delivered to the cleaning main pipe 17, and then distributed to several branch water pipes 15, and sprayed out to the quartz sand below through the high-pressure nozzle 16 for high-pressure spray washing.

[0028] The upper inclined end of the dewatering cylinder 2 is provided with a sand inlet end 4, and the lower inclined end of the dewatering cylinder 2 is provided with a sand discharge end 6. The dewatering cylinder 2 and the sand inlet end 4 are rotatably connected by a rotary bearing 9. The two ends of the rotary bearing 9 are fixedly connected to the outer wall of the sand inlet end 4 and the inner wall of the dewatering cylinder 2, respectively, so that the dewatering cylinder 2 and the sand inlet end 4 can rotate relative to each other.

[0029] An inclined guide plate 19 is fixedly installed on the inner wall of the sand inlet 4. Its inclined lower end is close to the dewatering cylinder 2. A sand receiving port 20 is provided through the top of the guide plate 19. The sand receiving port 20 is located directly below the sand outlet 3. The quartz sand falling into the sand receiving port 20 continues to fall onto the guide plate 19 and continues to fall into the dewatering cylinder 2 along the inclined direction of the guide plate 19, where it undergoes centrifugal dewatering under centrifugal action.

[0030] The cleaned quartz sand enters the dewatering cylinder 2 from the sand inlet 4 for dewatering. After dewatering, it moves along the inclined direction to the sand outlet 6. A sand collection box 27 is movably installed below the sand outlet 6, and the sand falls from the opening of the sand outlet 6 into the sand collection box 27 below for collection.

[0031] The dewatering cylinder 2 can perform centrifugal dewatering under the driving action of the driving unit 10. The dewatering cylinder 2 includes two connecting ends 23 and a screen end 24 in the middle. The outer walls of the two connecting ends 23 are fixedly provided with rollers 25. The rollers 25 are rotatably connected to the ground by a support seat 26. The screen end 24 can be used for water to be thrown out.

[0032] Two connecting ends 23 are used to support the stability of the rotation of the dewatering cylinder 2. The roller 25 can be rotatably connected to the support base 26 and achieve stable rotation under the drive of the drive unit 10. The outer wall of the screen end 24 is set to throw out water. The water on the surface of the quartz sand is thrown out from the outer wall of the screen end 24 by centrifugal force.

[0033] The drive unit 10 includes a large gear 28 disposed on the outer wall of the connection end 23, a small gear 29 meshing with the large gear 28, and another support frame 14 fixedly disposed on the ground. The outer wall of the support frame 14 is equipped with a drive motor 30 through a mounting bracket, and the small gear 29 is fixedly disposed on the output end of the drive motor 30.

[0034] During dehydration, the drive motor 30 is started, which drives the small gear 29 to rotate, which in turn drives the large gear 28 that meshes with it to rotate, that is, drives the connecting end 23 to rotate, so that the dehydration cylinder 2 can rotate to dehydrate.

[0035] The dehydration cylinder 2 is equipped with a water baffle cylinder 11. The water baffle cylinder 11 is also inclined, and the inclination arc is the same as that of the dehydration cylinder 2. Its outer wall is an arc-shaped structure, and a water outlet is opened at the bottom of the arc-shaped structure. The water baffle cylinder 11 can guide the water thrown out by the dehydration cylinder 2 to the water receiving tank 13 below.

[0036] Water centrifuged from the screen end 24 splashes onto the inner wall of the baffle cylinder 11, flows along the inner wall through the drain outlet, and finally falls into the water receiving tank 13 below. The separate design between the dewatering cylinder 2 and the baffle cylinder 11 allows for easy cleaning with a long-handled cleaning brush. The cleaning brush can be inserted into the gap between the two to scrub and clean the inner and outer walls.

[0037] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A quartz sand washing and dewatering screen, comprising a washing tank (1) and a dewatering cylinder (2), characterized in that: The washing tank (1) and the dewatering cylinder (2) are both inclined and in opposite directions. The upper inclined ends of the washing tank (1) and the dewatering cylinder (2) are respectively provided with a sand outlet (3) and a sand inlet (4). The lower inclined ends of the washing tank (1) and the dewatering cylinder (2) are respectively provided with an overflow end (5) and a sand discharge end (6). The washing tank (1) is rotatably equipped with a spiral conveyor sand washing slurry (7). A water spraying assembly (8) is fixedly installed above the spiral conveyor sand washing slurry (7). The dewatering cylinder (2) and the sand inlet (4) are rotatably connected by a rotating bearing (9). The dewatering cylinder (2) can be centrifugally dewatered under the driving action of the drive unit (10). A water baffle (11) is provided outside the dewatering cylinder (2).

2. The quartz sand washing and dewatering screen according to claim 1, characterized in that: A water storage tank (12) and a water receiving tank (13) are respectively installed below the cleaning tank (1) and the dehydration cylinder (2). Several support frames (14) are fixedly installed on the top of the cleaning tank (1). Each support frame (14) is equipped with a branch water pipe (15). Several high-pressure nozzles (16) are connected to the branch water pipes (15). A cleaning main pipe (17) is connected to the water storage tank (12). The cleaning main pipe (17) is connected to several branch water pipes (15). A water pump (18) is also installed on the cleaning main pipe (17).

3. The quartz sand washing and dewatering screen according to claim 2, characterized in that: The sand outlet (3) is set through the bottom wall of the inclined upper end of the washing tank (1). An inclined guide plate (19) is fixedly set on the inner wall of the sand inlet (4). Its inclined lower end is close to the dewatering cylinder (2). A sand receiving port (20) is set through the top of the guide plate (19). The sand receiving port (20) is set directly below the sand outlet (3).

4. The quartz sand washing and dewatering screen according to claim 3, characterized in that: Triangular baffles (21) are fixedly installed on both sides of the top wall of the overflow end (5). A wastewater tank (22) is movably installed below the overflow end (5). The baffle cylinder (11) is also inclined, and the inclination arc is consistent with that of the dewatering cylinder (2). Its outer wall is an arc structure, and a water outlet is opened at the bottom of the arc structure. The baffle cylinder (11) can guide the water thrown out by the dewatering cylinder (2) to the water receiving tank (13) below.

5. The quartz sand washing and dewatering screen according to claim 4, characterized in that: The dewatering cylinder (2) includes two connecting ends (23) and a screen end (24) in the middle. The outer walls of the connecting ends (23) at both ends are fixedly equipped with rollers (25). The rollers (25) are rotatably connected to the ground by a support base (26). The screen end (24) can be used for water to be thrown out. A sand collection box (27) is movably installed below the sand discharge end (6).

6. The quartz sand washing and dewatering screen according to claim 5, characterized in that: The drive unit (10) includes a large gear (28) disposed on the outer wall of the connecting end (23), a small gear (29) meshing with the large gear (28), and another support frame (14) fixedly disposed on the ground. The support frame (14) and the outer wall of the cleaning tank (1) are both equipped with drive motors (30) via mounting brackets. The small gear (29) and the spiral conveyor sand washing slurry (7) are both fixedly disposed on the output end of the drive motor (30).

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