Polyacrylamide double-screw granulator

Abstract

The utility model discloses a polyacrylamide double-screw granulator, relates to the technical field of granulators, and aims to solve the technical problems that when the size of granules needs to be controlled at present, the speed of a cutter is controlled, a pore plate is inconvenient to directly replace, and the quality of polyacrylamide granules is influenced. Comprising a screw box, a cutter box, a first motor, a second motor and a replacement mechanism arranged on the cutter box, the replacement mechanism comprises a first mounting plate and a second mounting plate which are mounted at the upper end of the cutter box, a first rotating shaft is rotatably mounted at the front end of the first mounting plate, and connecting plates are mounted on the first rotating shaft in an array mode; a pore plate is arranged at the tail end of the connecting plate and located in the plate groove. The utility model has the advantages that the pore plates with different pore diameters can be conveniently arranged in the cutter box, when polyacrylamide materials pass through the pore plates, the granulation size can be conveniently and efficiently adjusted due to the difference of the pore diameters, the flexibility and the accuracy of granulation production are greatly improved, and the granulation quality is ensured.

Description

Technical Field

[0001] This utility model relates to the field of granulator technology, and more specifically, to a polyacrylamide twin-screw granulator. Background Technology

[0002] Polyacrylamide is an extremely important water-soluble polymer with properties such as flocculation, thickening, drag reduction, and adhesion. It can efficiently purify wastewater in water treatment, help improve oil recovery in oil extraction, enhance paper quality in the paper industry, and plays a crucial role in mining, textiles, and other industries, making it widely applicable.

[0003] The production of polyacrylamide granules requires the use of a twin-screw granulator. The orifice diameter of the orifice plate in the twin-screw granulator directly affects the granule size. Controlling granule size via the orifice plate is fundamental. The cutter further refines the granules based on the initial particle size determined by the orifice plate. However, since the orifice plate is installed inside the granulator, controlling the cutter speed is necessary when granule size needs to be controlled. Directly replacing the orifice plate is inconvenient, thus affecting the quality of the polyacrylamide granules. Therefore, we propose a twin-screw granulator for polyacrylamide. 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 twin-screw granulator to solve the technical problem that when it is necessary to control the granulation size, the speed of the cutter is controlled, and it is inconvenient to directly replace the perforated plate, which affects the quality of polyacrylamide granules.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a polyacrylamide twin-screw granulator, including a screw box, a cutter box, a first motor and a second motor, and a replacement mechanism disposed on the cutter box. The cutter box is disposed at the end of the screw box, and a conveying pipe is disposed between the cutter box and the screw box. A circular groove is disposed inside the cutter box. Movable openings communicating with the groove are disposed at the upper end and the side end of the cutter box. The replacement mechanism includes a first mounting plate and a second mounting plate mounted on the upper end of the cutter box. A first rotating shaft is rotatably mounted on the front end of the first mounting plate. Connecting plates are arrayed on the first rotating shaft. A perforated plate is disposed at the end of the connecting plate, and the perforated plate is located in the groove.

[0006] Preferably, a feed inlet is provided on one side of the upper end face of the screw box, a twin screw is rotatably installed inside the screw box, and a gear is installed on the rotating shaft of the twin screw extending out of the screw box. The gears are meshed with each other, and the output shaft of the first motor is connected to the shaft of the gear on the left.

[0007] Preferably, a feed pipe is provided at the lower end of the blade box, a blade shaft is rotatably installed inside the blade box, a cutter is installed at the end of the blade shaft, and the output shaft of the second motor is connected to the blade shaft.

[0008] Preferably, a second rotating shaft is rotatably mounted on the front end of the second mounting plate, a fixing rod is mounted on the second rotating shaft, a positioning ring is mounted at the end of the fixing rod, a reinforcing rod is provided on the side end of the fixing rod, and the end of the reinforcing rod is connected to the positioning ring.

[0009] Preferably, the connecting plate has a triangular hole that penetrates the connecting plate, the inner wall of the triangular hole is arc-shaped, and the size of the triangular hole is adapted to the size of the positioning ring.

[0010] Preferably, the positioning ring is arranged in a ring along its long axis, the positioning ring has a notch, the positioning ring has a triangular cross-section, and the positioning ring is located inside the triangular hole.

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

[0012] 1. This utility model designs a first rotating shaft structure, which allows multiple perforated plates to be installed in a rotating manner. In actual production, operators only need to easily rotate the first rotating shaft to accurately switch perforated plates of different apertures into the slots of the cutter box. In this way, when polyacrylamide material passes through the perforated plates, the difference in aperture can be used to conveniently and efficiently adjust the granulation size, greatly improving the flexibility and accuracy of granulation production, ensuring granulation quality, and solving the problem that when it is necessary to control the granulation size, the speed of the cutter is controlled, and it is inconvenient to directly replace the perforated plates, which affects the quality of polyacrylamide granules.

[0013] 2. This utility model also incorporates a positioning ring and a triangular hole structure. The inner wall of the triangular hole on the connecting plate adopts a unique arc surface design. This design is compatible with the positioning ring, which has a triangular cross-section. When the positioning ring rotates, it can smoothly enter the triangular hole. After the positioning ring is in place, due to its special triangular cross-section, it can fit tightly against the inner wall of the triangular hole, thereby effectively fixing the position of the perforated plate and ensuring that the perforated plate below is stably placed in the knife box, providing a strong guarantee for the stability of the polyacrylamide granulation process. Attached Figure Description

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

[0015] Figure 2 This is a partial structural schematic diagram of the present invention;

[0016] Figure 3 This is a partial cross-sectional view of the present invention.

[0017] Figure 4 This is a schematic diagram of the toolbox structure of this utility model;

[0018] Figure 5 This is a schematic diagram of the perforated plate replacement mechanism of this utility model;

[0019] Figure 6 This is a schematic diagram of the perforated plate structure of this utility model;

[0020] Figure 7 This is a schematic diagram of the positioning ring structure of this utility model.

[0021] The following are the labels in the diagram: 100, Screw box; 101, Feed inlet; 102, Twin screw; 103, Gear; 104, First motor; 200, Tool box; 201, Tool shaft; 202, Cutting blade; 203, Feed tube; 204, Plate groove; 205, Movable port; 206, Second motor; 300, Changing mechanism; 301, First mounting plate; 302, First rotating shaft; 303, Connecting plate; 304, Triangular hole; 305, Hole plate; 306, Second mounting plate; 307, Second rotating shaft; 308, Fixing rod; 309, Positioning ring; 310, Reinforcing rod; 311, Notch. Detailed Implementation

[0022] like Figures 1 to 7 As shown, this utility model relates to a twin-screw polyacrylamide granulator, including a screw box 100, a cutter box 200, a first motor 104 and a second motor 206, and a replacement mechanism 300 disposed on the cutter box 200. The cutter box 200 is disposed at the end of the screw box 100, and a conveying pipe is disposed between the cutter box 200 and the screw box 100. A circular plate groove 204 is disposed inside the cutter box 200. Movable ports 205 communicating with the plate groove 204 are disposed at the upper end and the side end of the cutter box 200. The replacement mechanism 300 includes a first mounting plate 301 and a second mounting plate 306 mounted on the upper end of the cutter box 200. A first rotating shaft 302 is rotatably mounted on the front end of the first mounting plate 301. Connecting plates 303 are arrayed on the first rotating shaft 302. A perforated plate 305 is disposed at the end of the connecting plate 303, and the perforated plate 305 is located in the plate groove 204. This invention allows for the convenient and efficient adjustment of granulation size by setting perforated plates with different apertures within the cutter box 200. When polyacrylamide material passes through the perforated plate 305, the difference in aperture size enables convenient and efficient adjustment of granulation size, greatly improving the flexibility and precision of granulation production and ensuring granulation quality.

[0023] Specifically, a feed inlet 101 is provided on one side of the upper end face of the screw box 100. A twin screw 102 is rotatably mounted inside the screw box 100. Gears 103 are installed on the shafts of the twin screws 102 extending out of the screw box 100. The gears 103 mesh with each other. The output shaft of the first motor 104 is connected to the shaft of the left-side gear 103. The operation of the first motor 104 causes the left-side gear 103 to rotate, which in turn drives adjacent gears 103, thus causing the twin screws 102 to rotate synchronously to convey and compress the material.

[0024] Furthermore, a feed pipe 203 is provided at the lower end of the cutter box 200, and a cutter shaft 201 is rotatably mounted inside the cutter box 200. A cutter 202 is installed at the end of the cutter shaft 201, and the output shaft of the second motor 206 is connected to the cutter shaft 201. The operation of the second motor 206 causes the cutter shaft 201 to rotate, thereby causing the cutter 202 to rotate and cut the strip-shaped polyacrylamide material.

[0025] It is worth noting that a second rotating shaft 307 is rotatably mounted on the front end of the second mounting plate 306. A fixing rod 308 is mounted on the second rotating shaft 307, and a positioning ring 309 is mounted on the end of the fixing rod 308. A reinforcing rod 310 is provided on the side end of the fixing rod 308, and the end of the reinforcing rod 310 is connected to the positioning ring 309. When the triangular-section positioning ring 309 is located inside the triangular hole 304, it can fit tightly against the inner wall of the triangular hole 304, thereby effectively fixing the position of the orifice plate 305 and ensuring that the lower orifice plate 305 is stably located inside the knife box 200, providing a strong guarantee for the stability of the polyacrylamide granulation process.

[0026] It is worth mentioning that the connecting plate 303 has a triangular hole 304 that penetrates through the connecting plate 303. The inner wall of the triangular hole 304 is curved, and the size of the triangular hole 304 is adapted to the size of the positioning ring 309. The inner wall of the triangular hole 304 on the connecting plate 303 adopts a unique curved design. This design is adapted to the positioning ring 309, which has a triangular cross-section. When the positioning ring 309 rotates, it can smoothly enter the triangular hole 304, thereby limiting the position of the perforated plate 305 and preventing the perforated plate 305 from rotating.

[0027] It is worth noting that the positioning ring 309 is annular along its long axis, and has a notch 311. The cross-section of the positioning ring 309 is triangular, and the positioning ring 309 is located within the triangular hole 304. The notch 311 is used to release the limiting effect on the orifice plate 305. When the notch 311 is located within the triangular hole 304, the orifice plate 305 can be rotated for adjustment.

[0028] Working Principle: This embodiment provides a polyacrylamide twin-screw granulator. During use, polyacrylamide material enters the screw box 100 through the feed inlet 101. The first motor 104 drives the twin screws 102 to rotate and convey the material, extruding and conveying the polyacrylamide material into the cutter box 200. The polyacrylamide material entering the cutter box 200 passes through the perforated plate 305, entering in a strip shape through the holes. The second motor 206 drives the cutter shaft 201 to rotate, thereby... The cutter 202 rotates to cut the strip-shaped polyacrylamide material into granules. The granulated polyacrylamide material can be discharged from the feed pipe 203. When it is necessary to adjust the granulation size, the positioning ring 309 is rotated so that the notch of the positioning ring 309 is located at the triangular hole 304, so that the perforated plate 305 is disengaged from the limit of the positioning ring 309. By rotating the first rotating shaft 302, the perforated plates 305 with other hole diameters are located in the plate groove 204. The material can be easily made into granules of different sizes by passing through the perforated plates 305 with different hole diameters.

[0029] 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 twin-screw prilling machine characterized by, The utility model provides a screw box (100), knife box (200), first motor (104) and second motor (206) and set up on knife box (200) replacement mechanism (300), knife box (200) is set up at the end of screw box (100), be provided with the feed pipe between knife box (200) with screw box (100), be provided with the board groove (204) of circular in knife box (200), the upper end and side end of knife box (200) are provided with the movable mouth (205) of communication with board groove (204), the replacement mechanism (300) includes the first mounting plate (301) and second mounting plate (306) installed on the upper end of knife box (200), the front end of first mounting plate (301) is rotatably installed with first rotation shaft (302), first rotation shaft (302) is arrayed with connecting plate (303) on, the last end of connecting plate (303) is provided with hole plate (305), and hole plate (305) is located in board groove (204).

2. A polyacrylamide twin-screw prilling machine according to claim 1, characterized in that, The upper end face of the screw box (100) is provided with a feeding port (101), and the double screw (102) is rotatably installed in the screw box (100). The rotation shaft of the double screw (102) extends out of the screw box (100) and is provided with a gear (103). The gears (103) are connected with each other. The output shaft of the first motor (104) is connected with the shaft of the left gear (103).

3. A polyacrylamide twin-screw prilling machine according to claim 2, characterized in that, The lower end of the knife box (200) is provided with a discharge pipe (203), and the knife shaft (201) is rotatably installed in the knife box (200). The knife shaft (201) is provided with a cutter (202) at the end. The output shaft of the second motor (206) is connected with the knife shaft (201).

4. A polyacrylamide twin-screw prilling machine according to claim 3, characterized in that, The front end of the second mounting plate (306) is rotatably installed with a second rotation shaft (307), and the second rotation shaft (307) is installed with a fixed rod (308). The fixed rod (308) is provided with a reinforcing rod (310) at the side end. The end of the reinforcing rod (310) is connected with the positioning ring (309).

5. A polyacrylamide twin-screw prilling machine according to claim 4, characterized in that, The connecting plate (303) is provided with a triangular hole (304) penetrating through the connecting plate (303). The inner wall of the triangular hole (304) is arc-shaped. The size of the triangular hole (304) is matched with the size of the positioning ring (309).

6. A polyacrylamide twin-screw prilling machine according to claim 5, characterized in that, The positioning ring (309) is annular along the long axis direction. The positioning ring (309) is provided with a notch (311). The cross section of the positioning ring (309) is triangular. The positioning ring (309) is located in the triangular hole (304).

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