A screening and settling device
By introducing negative pressure and a cleaning mechanism into the screening and settling device, the problems of dust pollution and slow screening speed were solved, and multi-stage screening and smooth discharge of quartz sand were achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HE NAN HUAN CHEN GUANG DIAN KE JI YOU XIAN GONG SI
- Filing Date
- 2025-06-25
- Publication Date
- 2026-06-16
AI Technical Summary
Existing screening and settling equipment has problems such as dust pollution and slow screening speed of small particles in the process of quartz sand processing, and the material stagnation in the equipment leads to inconvenience in discharge.
A screening and settling device was designed, comprising an upper screening screen and a lower screening screen, combined with a negative pressure mechanism and a cleaning mechanism. The negative pressure prevents dust pollution, and the rotating rod and scraper accelerate the screening speed to achieve multi-stage discharge.
It effectively prevents dust pollution, increases the screening speed of small particles, avoids material accumulation, and realizes multi-stage screening and smooth discharge of quartz sand.
Smart Images
Figure CN224358830U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of screening and sedimentation technology, specifically a screening and sedimentation device. Background Technology
[0002] Quartz sand is quartz particles produced by crushing and screening quartz stone. Quartz stone is a non-metallic mineral, mainly composed of silicon dioxide. Its unique physical and chemical properties make quartz sand play an indispensable role in many key industrial fields. During quartz sand processing, a settling vibrating screen is used to screen and settle the quartz sand.
[0003] Currently, during the screening and settling process of quartz sand, the feeding and screening of the equipment causes air circulation inside, resulting in dust overflow and pollution at the feed inlet. The natural screening and settling speed of small particles in quartz sand is slow, and there is stagnation in the horizontal discharge of quartz sand within the equipment, which makes discharge inconvenient. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of the prior art by providing a screening and settling device that can prevent dust pollution during the screening of quartz sand and allow the screened small particles to fall quickly to prevent material accumulation.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a screening and settling device, comprising a screening and settling box, wherein an upper screening screen and a lower screening screen are provided inside the screening and settling box, an inlet is provided on one side of the top of the screening and settling box, a primary outlet is provided on the screening and settling box on the side of the upper screening screen, a secondary outlet is provided on the screening and settling box on the side of the lower screening screen, a tertiary outlet is provided at the lower end of one side of the screening and settling box, a negative pressure mechanism is provided on the side of the screening and settling box away from the inlet, a rotating rod is provided inside the screening and settling box, the rotating rod passes through the upper screening screen and the lower screening screen through a bushing, a connecting rod is provided at the top of the rotating rod, a cleaning mechanism is provided on the rotating rod, the connecting rod is driven by a servo motor, a first scraper is provided on the rotating rod above the upper screening screen and the lower screening screen, and a screen brush is provided at the bottom of the first scraper.
[0006] Preferably, the bottom of the screening and settling box is provided with a discharge plate, and the three-stage discharge port is located on the screening and settling box on one side of the discharge plate. The discharge plate, the upper screening screen and the lower screening screen are all convex upwards.
[0007] Preferably, the primary discharge port, the secondary discharge port and the tertiary discharge port are all equipped with baffles inside, and the upper end of the baffles is located at the top of the discharge port through a through-hole. The screening and settling tank above the primary discharge port, the secondary discharge port and the tertiary discharge port are all equipped with electric telescopic rods, and the electric telescopic rods are connected to the top of the baffles.
[0008] Preferably, the negative pressure mechanism includes a negative pressure port, a filter screen, a connecting pipe, and a fan. The negative pressure port is provided on the side of the screening and settling box below the lower screening screen away from the feed inlet. The filter screen is provided inside the negative pressure port. The negative pressure port is connected to the air inlet of the fan through the connecting pipe.
[0009] Preferably, the cleaning mechanism includes a connecting plate, a cleaning plate, and a filter brush. One side of the rotating rod is connected to the cleaning plate through the connecting plate, and the cleaning plate is provided with a filter brush on the side away from the connecting plate. The filter brush is arranged correspondingly to the filter screen.
[0010] Preferably, the bottom of the rotating rod is located at the top of the discharge plate, and a second scraper is provided on the rotating rod above the discharge plate.
[0011] Preferably, the bottom of the primary discharge port is provided with a primary material box, the bottom of the secondary discharge port is provided with a secondary material box, the bottom of the tertiary discharge port is provided with a tertiary material box, and the bottom of the screening and settling box is provided with a support frame.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] 1. This application has an upper screening screen and a lower screening screen inside the screening and settling box, which, in conjunction with the primary discharge port, the secondary discharge port and the tertiary discharge port, can realize multi-stage screening of quartz sand.
[0014] 2. In this application, the screening and settling box is equipped with a negative pressure port and a filter screen. In conjunction with a blower, it can achieve negative pressure inside the screening and settling box. This negative pressure not only prevents dust from overflowing and polluting the box, but also accelerates screening and settling. The cleaning plate and filter brush on the rotating rod can scrape the filter material from the filter screen into the screening and settling box, and the negative pressure makes cleaning the filter screen convenient. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the screening and settling box in this utility model;
[0017] Figure 3 This is a schematic diagram of the rotating rod in this utility model;
[0018] Figure 4 This is a schematic diagram of the upper screening screen in this utility model.
[0019] In the diagram: 1. Screening and settling box; 2. Upper screening screen; 21. Lower screening screen; 3. Feed inlet; 4. Primary discharge outlet; 41. Secondary discharge outlet; 42. Tertiary discharge outlet; 5. Electric telescopic rod; 51. Baffle; 6. Primary material bin; 61. Secondary material bin; 62. Tertiary material bin; 7. Rotating rod; 71. Connecting rod; 72. Servo motor; 73. No. 1 scraper; 74. Screen brush; 75. No. 2 scraper; 76. Connecting plate; 77. Cleaning plate; 78. Filter brush; 8. Negative pressure port; 81. Filter screen; 9. Connecting pipe; 10. Fan; 11. Discharge plate; 12. Support frame. Detailed Implementation
[0020] The technical solutions of the present utility model 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 utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] like Figures 1 to 4 As shown, a screening and settling device includes a screening and settling box 1. Inside the screening and settling box 1, from top to bottom, are an upper screening screen 2 and a lower screening screen 21. The screening and settling box 1 has a discharge port, including a primary discharge port 4, a secondary discharge port 41, and a tertiary discharge port 42. A feed inlet 3 is located on one side of the top of the screening and settling box 1. A primary discharge port 4 is located on one side of the upper screening screen 2, a secondary discharge port 41 is located on one side of the lower screening screen 21, and a tertiary discharge port 42 is located at the lower end of the screening and settling box 1. A tertiary discharge port 42 is located on the side of the screening and settling box 1 furthest from the feed inlet 3. The settling chamber 1 has a negative pressure mechanism. Inside the settling chamber 1, there is a rotating rod 7. The rotating rod 7 passes through the upper screen 2 and the lower screen 21 via a bushing. The top of the rotating rod 7 is equipped with a connecting rod 71. The rotating rod 7 is equipped with a cleaning mechanism. The connecting rod 71 is driven by a servo motor 72 at the top of the settling chamber 1. The rotating rod 7 above the upper screen 2 and the lower screen 21 is equipped with a first scraper 73. The bottom of the first scraper 73 is equipped with a screen brush 74, which can make the material screening faster and prevent the material from accumulating on the screen. Under the negative pressure, the dust overflow and pollution during the settling process can be avoided, and the settling process can be accelerated.
[0022] Specifically, the bottom of the screening and settling box 1 is provided with a discharge plate 11, and the third-stage discharge port 42 is located on the screening and settling box 1 on one side of the discharge plate 11. The discharge plate 11, the upper screen 2 and the lower screen 21 are all convex upwards, that is, the discharge plate 11, the upper screen 2 and the lower screen 21 are inclined. The first-stage discharge port 4, the second-stage discharge port 41 and the third-stage discharge port 42 can discharge materials quickly at an incline.
[0023] Furthermore, each of the primary discharge port 4, secondary discharge port 41, and tertiary discharge port 42 is equipped with a baffle 51. The upper end of the baffle 51 is located at the top of the discharge port through a passage. Each of the screening and settling boxes 1 above the primary discharge port 4, secondary discharge port 41, and tertiary discharge port 42 is equipped with an electric telescopic rod 5. The electric telescopic rod 5 is connected to the top of the baffle 51. After the quartz sand has finished screening and settling in the screening and settling box 1, the electric telescopic rod 5 drives the baffle 51 in the discharge port to move upward, opening the discharge port. The quartz sand in the screening and settling box 1 above the upper screening screen 2 is discharged from the primary discharge port 4, the quartz sand in the screening and settling box 1 above the lower screening screen 21 is discharged from the secondary discharge port 41, and the quartz sand in the screening and settling box 1 above the discharge plate 11 is discharged from the tertiary discharge port 42. After the discharge is completed, the electric telescopic rod 5 pushes the baffle 51 downward, closing the discharge port.
[0024] Furthermore, the negative pressure mechanism includes a negative pressure port 8. The negative pressure port 8 is located on the side of the screening and settling box 1 below the lower screening screen 21 away from the feed inlet 3. The inside of the negative pressure port 8 is equipped with a filter screen 81. The filter surface of the filter screen 81 is correspondingly arranged with the inner wall of the screening and settling box 1. The screening and settling box 1 is arranged in a cylindrical structure. The negative pressure port 8 is connected to the air inlet of the blower 10 through the connecting pipe 9. The blower 10 is installed on the top of the screening and settling box 1. Under the action of the blower 10, the air inside the screening and settling box 1 is discharged from the air outlet of the blower 10 through the negative pressure port 8 and the connecting pipe 9, and a negative pressure state is formed inside the screening and settling box 1.
[0025] Furthermore, the cleaning mechanism includes a connecting plate 76 connected to the rotating rod 7. The end of the connecting plate 76 is connected to the cleaning plate 77. A filter brush 78 is provided on the side of the cleaning plate 77 away from the connecting plate 76. The filter brush 78 is correspondingly arranged with the filter screen 81. During the rotation of the filter brush 78, it contacts the filter surface of the filter screen 81. During the rotation of the rotating rod 7, the cleaning plate 77 and the filter brush 78 are rotated through the connecting plate 76, which scrapes the filter material on the filter surface of the filter screen 81 into the screening and settling box 1.
[0026] Furthermore, the bottom of the rotating rod 7 is located at the top of the discharge plate 11. The rotating rod 7 above the discharge plate 11 is equipped with a second scraper 75. Both the second scraper 75 and the first scraper 73 are inclined. During discharge, the second scraper 75 can scrape the quartz sand above the discharge plate 11 to the third discharge port 42 for discharge, ensuring thorough discharge above the discharge plate 11.
[0027] Furthermore, a primary material box 6 is provided at the bottom of the primary discharge port 4, a secondary material box 61 is provided at the bottom of the secondary discharge port 41, a tertiary material box 62 is provided at the bottom of the tertiary discharge port 42, and a support frame 12 is provided at the bottom of the screening and settling box 1, making it convenient to collect the graded screening and discharge materials.
[0028] The usage method of this embodiment is as follows: The equipment is connected to a power source and powered on. The blower 10 and servo motor 72 are started by the control switch. The quartz sand to be screened and settled is fed into the screening and settling box 1 through the feed inlet 3. The air inside the screening and settling box 1 is filtered through the negative pressure port 8 and the filter screen 81, and discharged from the air outlet of the blower 10 through the connecting pipe 9. A negative pressure state is formed inside the screening and settling box 1. The negative pressure not only prevents dust from overflowing and polluting the screening and settling box 1, but also accelerates the screening and settling. The quartz sand inside the screening and settling box 1 is subjected to... The quartz sand settles through the upper screening screen 2 and then through the lower screening screen 21. The upper screening screen 2 performs primary screening of the quartz sand, while the lower screening screen 21 performs secondary screening. The quartz sand that has passed through the lower screening screen 21 settles into the screening and settling box 1 above the discharge plate 11. The servo motor 72 drives the connecting rod 71 and the rotating rod 7 to rotate within the screening and settling box 1, causing the first scraper plate 73 and screen brush 74, the second scraper plate 75, and the cleaning plate 77 and filter brush 78 to rotate within the screening and settling box 1. The first scraper plate 73 and screen brush 74 then rotate through the upper screening screen 2. The upper and lower screening screens 21 are cleaned for screening and settling to ensure smooth screening and settling. The cleaning plate 77 and the filter brush 78 clean the filter screen 81 inside the negative pressure port 8, scraping the filter material on the filter surface of the filter screen 81 into the screening and settling box 1. The negative pressure filter screen 81 is smooth and easy to clean. After screening and settling, the baffle 51 inside the discharge port is moved upward by the electric telescopic rod 5, and the discharge port is opened. The quartz sand in the screening and settling box 1 above the upper screening screen 2 is discharged from the primary discharge port 4 and collected in the primary material box 6. The quartz sand in the screening and settling box 1 above the lower screening screen 21 is discharged from the secondary discharge port 41 and collected in the secondary material box 61. The quartz sand in the screening and settling box 1 above the discharge plate 11 is discharged from the tertiary discharge port 42 and collected in the tertiary material box 62, realizing multi-stage screening and settling treatment of quartz sand. During the discharge process, the first scraper plate 73 and the second scraper plate 75 rotate continuously, ensuring smooth multi-stage screening and settling and convenient discharge. The negative pressure inside the screening and settling box 1 not only prevents dust from overflowing and polluting the feeding of the screening and settling box 1, but also accelerates the screening and settling.
[0029] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 screening and settling device, comprising a screening and settling tank (1), characterized in that: The screening and settling box (1) is provided with an upper screening screen (2) and a lower screening screen (21) from top to bottom. A feed inlet (3) is located on one side of the top of the screening and settling box (1). A primary discharge outlet (4) is located on the side of the upper screening screen (2). A secondary discharge outlet (41) is located on the side of the lower screening screen (21). A tertiary discharge outlet (42) is located at the lower end of the screening and settling box (1). A negative pressure mechanism is located on the side of the screening and settling box (1) away from the feed inlet (3). The settling tank (1) is equipped with a rotating rod (7), which passes through the upper screen (2) and the lower screen (21) through a bushing. The top of the rotating rod (7) is equipped with a connecting rod (71), and the rotating rod (7) is equipped with a cleaning mechanism. The connecting rod (71) is driven by a servo motor (72) at the top of the settling tank (1). The rotating rod (7) above the upper screen (2) and the lower screen (21) is equipped with a scraper plate (73), and the bottom of the scraper plate (73) is equipped with a screen brush (74).
2. The screening and settling device according to claim 1, characterized in that: The bottom of the screening settling box (1) is provided with a discharge plate (11), and the three-stage discharge port (42) is located on the screening settling box (1) on one side of the discharge plate (11). The discharge plate (11), the upper screening screen (2) and the lower screening screen (21) are all convex upward.
3. The screening and settling device according to claim 1, characterized in that: The primary discharge port (4), secondary discharge port (41) and tertiary discharge port (42) are all equipped with baffles (51). The upper end of the baffles (51) is located at the top of the discharge port through a through-hole. The screening and settling box (1) above the primary discharge port (4), secondary discharge port (41) and tertiary discharge port (42) is equipped with an electric telescopic rod (5). The electric telescopic rod (5) is connected to the top of the baffles (51).
4. The screening and settling device according to claim 1, characterized in that: The negative pressure mechanism includes a negative pressure port (8), a filter screen (81), a connecting pipe (9), and a fan (10). The screening and settling box (1) below the lower screening screen (21) is provided with a negative pressure port (8) on the side away from the feed inlet (3). The inside of the negative pressure port (8) is provided with a filter screen (81). The negative pressure port (8) is connected to the air inlet of the fan (10) through the connecting pipe (9).
5. The screening and settling device according to claim 4, characterized in that: The cleaning mechanism includes a connecting plate (76) connected to the rotating rod (7), the end of the connecting plate (76) is connected to the cleaning plate (77), and a filter brush (78) is provided on the side of the cleaning plate (77) away from the connecting plate (76), and the filter brush (78) is correspondingly arranged with the filter screen (81).
6. The screening and settling device according to claim 2, characterized in that: The bottom of the rotating rod (7) is located at the top of the discharge plate (11), and the rotating rod (7) above the discharge plate (11) is equipped with a second scraper (75).
7. The screening and settling device according to claim 1, characterized in that: The bottom of the primary discharge port (4) is provided with a primary material box (6), the bottom of the secondary discharge port (41) is provided with a secondary material box (61), the bottom of the tertiary discharge port (42) is provided with a tertiary material box (62), and the bottom of the screening and settling box (1) is provided with a support frame (12).