Polyacrylamide swinging sieve

Abstract

The utility model discloses a polyacrylamide swinging sieve, relates to the technical field of swinging sieves, and aims to solve the problems that some small-particle polyacrylamide is discharged from an upper-stage sieve, and the quality of the polyacrylamide is influenced because the amount of materials passing through a sieve plate in unit time is relatively small due to limited retention time of the materials on a sieve surface at present. The polyacrylamide screening device comprises a swing seat arranged on a base and a screening mechanism arranged on the swing seat, an eccentric shaft is rotationally installed at the upper end of the base, the swing seat is installed on the eccentric shaft, and the screening mechanism comprises a discharging frame, a third-stage screening frame, a second-stage screening frame, a first-stage screening frame and a cover. And positioning rods are symmetrically arranged on the outer surface of the swinging seat. The multi-stage screening device has the advantages that the retention time of materials on the screen surface is prolonged, small-particle polyacrylamide has more opportunities to pass through the screen holes, the situation that small particles are discharged from an upper-stage screen is reduced, and the screening quality, precision and efficiency can be improved by matching with multi-stage screening.

Description

Technical Field

[0001] This utility model relates to the field of gyratory screen technology, and more specifically, to a polyacrylamide gyratory screen. Background Technology

[0002] Polyacrylamide is a linear polymer with wide applications in various fields. It appears as a white powder or granular crystals, exhibiting good water solubility and dissolving in water in varying proportions. Due to its diverse active groups, it can form hydrogen bonds with many substances through affinity and adsorption. In wastewater treatment, it promotes the rapid settling of suspended particles through flocculation; in the paper industry, it improves paper strength and tear resistance; and in oil extraction, it helps increase oil recovery rates.

[0003] In the production and processing of polyacrylamide, a vibrating screen is required for screening and grading. However, due to its screening principle and structural characteristics, the residence time of material on the screen surface is limited, resulting in a relatively small amount of material passing through the screen per unit time. This causes some small particles of polyacrylamide to be discharged from the upper stage, affecting the quality and efficiency of polyacrylamide screening. Therefore, we propose a new type of polyacrylamide vibrating screen. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology, adapt to practical needs, and provide a polyacrylamide gyratory screen to solve the technical problem that the limited residence time of materials on the screen surface results in a relatively small amount of material passing through the screen plate per unit time, causing some small polyacrylamide particles to be discharged from the upper stage of screening, thus affecting the quality and efficiency of polyacrylamide screening.

[0005] To solve the above technical problems, this utility model provides the following technical solution: a polyacrylamide gyratory screen, comprising a gyratory seat mounted on a base and a screening mechanism mounted on the gyratory seat. An eccentric shaft is rotatably mounted on the upper end of the base, and the gyratory seat is mounted on the eccentric shaft. A rubber elastic foot is mounted on the upper end of the base, and the end of the rubber elastic foot is connected to the outer surface of the gyratory seat. The screening mechanism includes a discharge frame, a three-stage screening frame, a two-stage screening frame, a one-stage screening frame, and a cover. Positioning rods are symmetrically arranged on the outer surface of the gyratory seat. Positioning elements are symmetrically arranged on the outer surfaces of the discharge frame, the three-stage screening frame, the two-stage screening frame, the one-stage screening frame, and the cover. Positioning holes are opened on the positioning elements, and the positioning rods are located in the positioning holes.

[0006] Preferably, the lower end of the base is hollow, the eccentric shaft extends to the lower end of the base and is provided with a driven pulley, a motor is provided on one side of the upper end face of the base, the output shaft of the motor extends to the lower end of the base and is installed with a driving pulley, and a transmission belt is provided between the driving pulley and the driven pulley.

[0007] Preferably, the discharge frame is installed on the upper end of the swing seat, the three-stage screening frame is installed on the upper end of the discharge frame, the two-stage screening frame is installed on the upper end of the three-stage screening frame, the first-stage screening frame is installed on the upper end of the two-stage screening frame, the cover is installed on the upper end of the first-stage screening frame, and a feed hopper is provided at the center of the upper end of the cover.

[0008] Preferably, the upper ends of the swaying seat, the discharge frame, the tertiary screening frame, and the secondary screening frame are all provided with positioning grooves, and the lower ends of the discharge frame, the tertiary screening frame, the secondary screening frame, and the primary screening frame are all provided with positioning rings, which are inserted into the positioning grooves.

[0009] Preferably, the upper part of the positioning hole is circular, the lower part of the positioning hole is a wide-mouthed funnel shape, and a nut is threaded onto the end of the positioning rod, with the nut located on the upper end of the positioning component on the side of the cover.

[0010] Preferably, the side end of the discharge frame is provided with a fine material discharge pipe, the side end of the third-stage screening frame is provided with a small particle discharge pipe, the side end of the second-stage screening frame is provided with a medium particle discharge pipe, and the side end of the first-stage screening frame is provided with a large particle discharge pipe. Screening plates are provided in the third-stage, second-stage, and first-stage screening frames. The screen aperture of the upper screening plate is larger than that of the lower screening plate. A limiting element is embedded in the screening plate. The limiting element is spirally arranged along its long axis and protrudes from the screening plate. The protrusion height of the limiting element is 3mm.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model, through the design of a limiting component structure, uses a spirally arranged limiting component that protrudes from the screening plate along its long axis to intercept materials. This forces materials to bypass the limiting component as they move on the screening plate, thereby increasing the residence time of materials on the screen surface. This allows small polyacrylamide particles to have more opportunities to pass through the screen holes, reducing the discharge of small particles from the upper screening stage. Combined with multi-stage screening, this improves screening quality, accuracy, and efficiency, solving the problem that the limited residence time of materials on the screen surface results in a relatively small amount of material passing through the screen plate per unit time, causing some small polyacrylamide particles to be discharged from the upper screening stage, thus affecting the quality and efficiency of polyacrylamide screening.

[0013] 2. This utility model also designs a positioning component structure. The positioning component, together with the positioning rod, can limit the position of each screening frame and cover, maintain stability during the swinging process, and prevent shaking and displacement. In addition, the wide, flared opening at the bottom of the positioning hole of the positioning component can guide the installation of each screening frame and cover, making it easier for the positioning rod to enter the positioning hole of the positioning component, thereby improving the installation efficiency of each screening frame and cover. Attached Figure Description

[0014] Figure 1 This is a front view structural diagram of the present utility model;

[0015] Figure 2 This is a schematic diagram of the rear view structure of this utility model;

[0016] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0017] Figure 4 This is a front view schematic diagram of the secondary screening frame of this utility model;

[0018] Figure 5 This is a bottom view of the secondary screening frame structure of this utility model.

[0019] The following are the labels in the diagram: 101, base; 102, motor; 103, rubber elastic foot; 104, swing seat; 105, positioning rod; 200, screening mechanism; 201, discharge frame; 202, fine material discharge pipe; 203, three-stage screening frame; 204, small particle discharge pipe; 205, two-stage screening frame; 206, medium particle discharge pipe; 207, first-stage screening frame; 208, large particle discharge pipe; 209, cover; 210, feed hopper; 211, positioning component; 212, screening plate; 213, material limiting component; 214, positioning ring; 215, positioning groove. Detailed Implementation

[0020] like Figures 1 to 5 As shown, this utility model relates to a polyacrylamide gyratory screen, which includes a gyratory seat 104 and a screening mechanism 200 mounted on the gyratory seat 104, with an eccentric shaft rotatably mounted on the upper end of the base 101. The gyratory seat 104 is mounted on the eccentric shaft, and a rubber elastic foot 103 is mounted on the upper end of the base 101. The end of the rubber elastic foot 103 is connected to the outer surface of the gyratory seat 104. The screening mechanism 200 includes a discharge frame 201, a three-stage screening frame 203, a two-stage screening frame 205, a one-stage screening frame 207, and a cover 209. Positioning rods 105 are symmetrically arranged on the outer surface of the gyratory seat 104. Positioning elements 211 are symmetrically arranged on the outer surfaces of the discharge frame 201, the three-stage screening frame 203, the two-stage screening frame 205, the one-stage screening frame 207, and the cover 209. Positioning holes are opened on the positioning elements 211, and the positioning rods 105 are located in the positioning holes. This invention increases the residence time of materials on the screen surface, giving small polyacrylamide particles more opportunities to pass through the screen holes and reducing the discharge of small particles from the upper stage of screening. Combined with multi-stage screening, it can improve screening quality, accuracy and efficiency.

[0021] Specifically, the lower end of the base 101 is hollow. An eccentric shaft extends to the lower end of the base 101 and a driven pulley is mounted thereon. A motor 102 is mounted on one side of the upper surface of the base 101. The output shaft of the motor 102 extends to the lower end of the base 101 and a driving pulley is mounted thereon. A transmission belt is provided between the driving pulley and the driven pulley. When the motor 102 operates, it causes the driving pulley to rotate, which in turn causes the driven pulley to rotate under the action of the transmission belt. This, in turn, causes the eccentric shaft to rotate, making the rocker seat 104 rock.

[0022] Furthermore, the discharge frame 201 is installed on the upper end of the swing seat 104, the tertiary screening frame 203 is installed on the upper end of the discharge frame 201, the secondary screening frame 205 is installed on the upper end of the tertiary screening frame 203, the primary screening frame 207 is installed on the upper end of the secondary screening frame 205, and the cover 209 is installed on the upper end of the primary screening frame 207. A feed hopper 210 is provided at the center of the upper end of the cover 209. Polyacrylamide material can be added into the primary screening frame 207 through the feed hopper 210.

[0023] It is worth noting that the upper ends of the swing seat 104, discharge frame 201, tertiary screening frame 203, and secondary screening frame 205 are all provided with positioning grooves 215, and the lower ends of the discharge frame 201, tertiary screening frame 203, secondary screening frame 205, and primary screening frame 207 are all provided with positioning rings 214, which are inserted into the positioning grooves 215. The positioning rings 214 and positioning grooves 215 enhance the connection stability between the various components, making the vertical positions of each screening structure more secure.

[0024] It is worth mentioning that the upper part of the positioning hole is circular, while the lower part is a wide, flared opening. A nut is threaded onto the end of the positioning rod 105, and the nut is located on the upper end of the positioning component 211 on the side of the cover 209. The positioning component 211, in conjunction with the positioning rod 105, can limit the positioning of each screening frame and the cover 209, maintaining stability during oscillation and preventing shaking and displacement. Furthermore, the wide, flared opening at the lower part of the positioning hole of the positioning component 211 can guide the installation of each screening frame and the cover 209, making it easier for the positioning rod 105 to enter the positioning hole of the positioning component 211, thereby improving the installation efficiency of each screening frame and the cover 209.

[0025] It is worth noting that the side end of the discharge frame 201 is provided with a fine material discharge pipe 202, the side end of the tertiary screening frame 203 is provided with a small particle discharge pipe 204, the side end of the secondary screening frame 205 is provided with a medium particle discharge pipe 206, and the side end of the primary screening frame 207 is provided with a large particle discharge pipe 208. Screening plates 212 are provided in the tertiary screening frame 203, the secondary screening frame 205, and the primary screening frame 207. The screen aperture of the upper screening plate 212 is larger than that of the lower screening plate 212. A limiting element 213 is embedded in the screening plate 212. The limiting element 213 is spirally arranged along the long axis and protrudes from the screening plate 212. The protrusion height of the limiting element 213 is 3mm. The limiting element 213, which is spirally arranged along the long axis and protrudes from the screening plate 212, can have a certain interception effect on the material. This means that when the material moves on the screening plate 212, it needs to bypass the limiting element 213, thereby increasing the residence time of the material on the screen surface. This gives small polyacrylamide particles more opportunities to pass through the screen holes, reduces the situation of small particles being discharged from the upper screening stage, and can improve screening quality and efficiency.

[0026] Working Principle: This embodiment provides a polyacrylamide gyratory screen. During use, the motor 102 causes the gyratory seat 104 to gyrate. Polyacrylamide material is fed from the feed hopper 210 into the primary screening frame 207. The material is screened by the screening plates 212 within the primary screening frame 207; material smaller than the screen openings falls off the screening plates 212. Subsequently, the material is screened by the screening plates 212 in the secondary screening frame 205 and the tertiary screening frame 203. The spiral-shaped material limiting devices on the screening plates 212... The limiting component 213 can limit the material. Because the limiting component 213 protrudes from the screening plate 212, the material needs a certain amount of time to pass through the limiting component 213. At the same time, it can also block small particles of material to a certain extent, effectively increasing the time that the material stays on the screening plate 212. The material retained after being screened by the screening plate 212 can be discharged separately through the large particle discharge pipe 208, the medium particle discharge pipe 206, the small particle discharge pipe 204, and the fine material discharge pipe 202, thereby performing the grading and screening of polyacrylamide.

[0027] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A polyacrylamide shaker screen characterized by, The system includes a swing seat (104) mounted on a base (101) and a screening mechanism (200) mounted on the swing seat (104). An eccentric shaft is rotatably mounted on the upper end of the base (101), and the swing seat (104) is mounted on the eccentric shaft. A rubber elastic foot (103) is mounted on the upper end of the base (101), and the end of the rubber elastic foot (103) is connected to the outer surface of the swing seat (104). The screening mechanism (200) includes a discharge frame (201) and a three-stage screening frame (2...). 03), secondary screening frame (205), primary screening frame (207) and cover (209), the outer surface of the swing seat (104) is symmetrically provided with positioning rods (105), the outer surface of the discharge frame (201), tertiary screening frame (203), secondary screening frame (205), primary screening frame (207) and cover (209) are symmetrically provided with positioning parts (211), the positioning parts (211) are provided with positioning holes, and the positioning rods (105) are located in the positioning holes; The discharge frame (201) is provided with a fine material discharge pipe (202) on its side, the third-stage screening frame (203) is provided with a small particle discharge pipe (204) on its side, the second-stage screening frame (205) is provided with a medium particle discharge pipe (206) on its side, and the first-stage screening frame (207) is provided with a large particle discharge pipe (208) on its side. Each of the third-stage screening frame (203), the second-stage screening frame (205), and the first-stage screening frame (207) is provided with a screening plate (212). The screen hole diameter of the upper screening plate (212) is larger than that of the lower screening plate (212). A limiting component (213) is embedded in the screening plate (212). The limiting component (213) is spirally arranged along its long axis. The limiting component (213) protrudes from the screening plate (212) and the protrusion height of the limiting component (213) is 3mm.

2. A polyacrylamide shaker screen according to claim 1, wherein, The lower end of the base (101) is hollow. The eccentric shaft extends to the lower end of the base (101) and is provided with a driven pulley. A motor (102) is provided on one side of the upper end face of the base (101). The output shaft of the motor (102) extends to the lower end of the base (101) and is provided with a driving pulley. A transmission belt is provided between the driving pulley and the driven pulley.

3. A polyacrylamide shaker screen according to claim 2, wherein, The discharge frame (201) is installed on the upper end of the swing seat (104), the three-stage screening frame (203) is installed on the upper end of the discharge frame (201), the two-stage screening frame (205) is installed on the upper end of the three-stage screening frame (203), the first-stage screening frame (207) is installed on the upper end of the two-stage screening frame (205), the cover (209) is installed on the upper end of the first-stage screening frame (207), and a feed hopper (210) is provided at the center of the upper end of the cover (209).

4. A polyacrylamide shaker screen according to claim 3, wherein, The upper ends of the swing seat (104), discharge frame (201), tertiary screening frame (203) and secondary screening frame (205) are all provided with positioning grooves (215), and the lower ends of the discharge frame (201), tertiary screening frame (203), secondary screening frame (205) and primary screening frame (207) are all provided with positioning rings (214), which are inserted into the positioning grooves (215).

5. A polyacrylamide shaker screen according to claim 4, wherein, The upper part of the positioning hole is circular, and the lower part of the positioning hole is a wide-mouthed funnel shape. A nut is threaded at the end of the positioning rod (105), and the nut is located on the upper end of the positioning part (211) on the side of the cover (209).

Images