Feeding device for polyacrylamide dry powder production

By designing a combination of frame, feed hopper, discharge hopper and screw conveyor, the problem of material accumulation in the feeding device for polyacrylamide dry powder production was solved, achieving efficient mixing and continuous feeding, and improving processing efficiency and product quality consistency.

CN223892034UActive Publication Date: 2026-02-10XINMI WANLI IND DEV
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Patent Information

Application Number
CN202520613491.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-02
Publication Date
2026-02-10
Estimated Expiration
2035-04-02

AI Technical Summary

Technical Problem

Existing feeding devices for polyacrylamide dry powder production are not convenient for timely discharge when removing dry powder adhering to the inside of the box, resulting in material accumulation, affecting the continuity of feeding and processing efficiency, and may cause equipment blockage, affecting the consistency and stability of product quality.

Method used

The design includes a frame, feed hopper, discharge hopper, mixing device, screw conveyor and support structure. It achieves continuous material conveying through mixing blades, automatic material discharge through discharge grooves and screw conveyor, ensuring material uniformity and sealing to prevent leakage.

Benefits of technology

This technology enables efficient mixing and continuous feeding of polyacrylamide dry powder, improving processing efficiency, ensuring equipment stability and safety, preventing material spillage and leakage, and enhancing product quality consistency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a feeding device for polyacrylamide dry powder production, and relates to the technical related field of polyacrylamide dry powder production. The device comprises a rack, moving wheels, a feeding hopper, a feeding opening, a stirring device, a discharging hopper, a discharging groove, a conveying pipeline, a spiral conveying device, a discharging pipeline, a supporting plate, a supporting frame and adjustable supporting legs. According to the feeding device for polyacrylamide dry powder production, materials are fed from the feeding port, are uniformly mixed by the stirring device, enter the conveying pipeline through the discharging hopper and the discharging groove, and are pushed to a working place by the spiral conveying device, so that an efficient, stable and accurate material conveying process is realized, and the production efficiency is improved. And materials are prevented from being accumulated in the feeding hopper.
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Description

TECHNICAL FIELD

[0001] The application relates to the technical field of polyacrylamide dry powder production, and in particular to a feeding device for polyacrylamide dry powder production. BACKGROUND

[0002] Polyacrylamide is an artificial synthetic polymer, which is polymerized from acrylamide monomers. Due to its unique molecular structure and properties, polyacrylamide is widely used in water flooding, water plugging and profile control, enhanced oil recovery (EOR) and other aspects in oil exploitation.

[0003] In the related art, a feeding device for polyacrylamide dry powder production is disclosed in Patent No. CN220611668U, which comprises a scraper component group arranged outside the rotating shaft, the scraper component group is used for scraping dry powder, and the scraper component group comprises a scraper piece, and one side of the scraper piece is connected with a connecting plate. The utility model increases the scraper piece to shovel and clean the attached dry powder on the basis of the brush cleaning dry powder, so that the dry powder on the fixed block body is cleaned, and the collection effect of the dry powder is ensured.

[0004] In the above-mentioned technology, although the feeding device for polyacrylamide dry powder production can effectively remove the dry powder attached to the inside of the box on the basis of the brush cleaning dry powder, it is inconvenient to timely discharge the dry powder material in the box. Since the dry powder material is prone to accumulate in the box, this not only affects the continuity of feeding, but also significantly reduces the processing efficiency of the polyacrylamide dry powder. Once the dry powder material accumulates, it not only easily causes the blockage of the feeding device, but also may affect the consistency of product quality and the stability of the processing process. Utility model content

[0005] In order to solve the problem that the feeding device for polyacrylamide dry powder production cannot timely discharge the dry powder material in the box due to its own design characteristics, the present application provides a feeding device for polyacrylamide dry powder production.

[0006] The polyacrylamide dry powder production feeding device provided by the application adopts the technical scheme as follows: a rack, moving wheels arranged at the four corners of the lower end surface of the rack, a feeding hopper fixedly arranged in the inner cavity of the rack, a feeding port arranged on the upper end surface of the feeding hopper, a stirring device arranged in the inner cavity of the feeding hopper, a discharge hopper arranged at the lower end surface of the feeding hopper, a discharge groove arranged at the middle position of the lower end surface of the discharge hopper, a conveying pipeline in communication with the discharge groove, a spiral conveying device arranged between the conveying pipeline and the discharge groove, a discharging pipeline in communication with the conveying pipeline, a support plate arranged at the lower end surface of the conveying pipeline, a support frame connected with the support plate, and adjustable supporting legs arranged at the four corners of the lower end surface of the support frame.

[0007] Through the above technical scheme, the moving wheels and the adjustable supporting legs in the utility model are designed, so that the machine can be conveniently moved in the workplace, and the horizontal stability can be realized by adjusting the adjustable supporting legs under the support plate, so that the stability and safety of the equipment in the moving and using process are ensured. The inner cavity of the rack is provided with the feeding hopper and the discharge hopper, the upper end surface of the feeding hopper is provided with the feeding port, the raw materials can enter the feeding hopper conveniently, the stirring device in the feeding hopper can efficiently stir and mix the raw materials to ensure uniformity, the discharge groove below the discharge hopper can accurately guide the mixed raw materials into the conveying pipeline, the raw materials are uniformly conveyed to the working site through the discharging pipeline in communication with the conveying pipeline by the pushing of the spiral conveying device, and the design of the support plate and the support frame can stably place the conveying pipeline, thereby effectively preventing the problems of raw material spilling or poor conveying caused by improper movement of the conveying pipeline.

[0008] As a preferred scheme, the stirring device comprises a stirring shaft arranged in the inner cavity of the feeding hopper, stirring blades uniformly arranged on the outer periphery of the stirring shaft, and a stirring motor connected with the stirring shaft, the stirring motor is fixedly arranged on the upper end surface of the feeding hopper, and the output shaft of the stirring motor penetrates the feeding hopper and is connected with the stirring shaft.

[0009] Through the above technical scheme, when the stirring motor is started, the output shaft drives the stirring shaft arranged in the inner cavity of the feeding hopper to rotate, the stirring blades uniformly distributed on the outer periphery of the stirring shaft rotate, so that the materials in the feeding hopper are fully stirred, and the materials are prevented from accumulating in the feeding hopper. In this way, the stirring device can realize efficient material stirring in the feeding hopper, facilitate discharging, and improve processing efficiency and product quality.

[0010] As a preferred scheme, the upper end surface of the discharge hopper is connected with the discharge port of the feeding hopper through a flange plate, and a sealing ring is arranged at the connection position of the discharge hopper and the feeding hopper.

[0011] By adopting the above technical solution, the discharge port of the feed hopper is connected to the upper end face of the discharge hopper through a flange, and a sealing ring is set at the connection between the two to ensure the sealing of the connection part, effectively preventing material leakage during the feeding process and facilitating the feeding of material from the feed hopper to the discharge hopper.

[0012] As a preferred embodiment, the discharge groove is configured as a semi-circle, and the discharge groove is located at the lowest end face of the inclined surface of the discharge hopper.

[0013] By adopting the above technical solution, the material entering the discharge hopper can automatically fall into the discharge groove due to its own weight.

[0014] As a preferred embodiment, the discharge groove is set with the same curvature as the conveying pipe, and a sealing gasket is provided at the connection between the conveying pipe and the discharge hopper.

[0015] By adopting the above technical solution, the discharge groove and the conveying pipe are set with the same curvature. The discharge groove is designed as a semi-circle and located at the lowest end of the inclined surface of the discharge hopper. This allows the material entering the discharge hopper to automatically slide into the discharge groove by its own weight, thus achieving automatic material discharge. Simultaneously, the discharge groove and the conveying pipe are set with the same curvature, and a sealing gasket is installed at the connection between the conveying pipe and the discharge hopper. This ensures that the material smoothly flows from the discharge hopper through the discharge groove into the conveying pipe while maintaining a good sealing effect and reducing material leakage. Through the action of the screw conveyor, the material smoothly enters the conveying pipe from the discharge hopper via the discharge groove, ultimately realizing the material conveying process. This provides an efficient material conveying solution, simplifies the logistics process, and improves production efficiency.

[0016] As a preferred embodiment, the screw conveyor includes a screw conveyor shaft disposed in the conveying pipe and a drive motor for driving the screw conveyor shaft. One end of the screw conveyor shaft is connected to the discharge groove, and the other end of the screw conveyor shaft is connected to the end of the conveying pipe away from the discharge hopper. A sealed bearing is provided at the connection between the screw conveyor shaft and the discharge groove and the conveying pipe.

[0017] By adopting the above technical solution, one end of the screw conveyor shaft is connected to the discharge groove via a sealed bearing, and the other end is connected to the end of the conveying pipe furthest from the discharge hopper in the same way, forming a sealed screw channel.

[0018] As a preferred embodiment, the drive motor is fixedly mounted on the support frame, and the output shaft of the drive motor passes through the conveying pipe and is connected to the spiral conveying shaft. A spiral conveying shaft is provided inside the conveying pipe.

[0019] By adopting the above technical solution, the drive motor is fixed on the support frame and its output shaft is directly connected to the screw conveyor shaft, driving the screw conveyor shaft to rotate. When the material enters the conveying pipe from the discharge groove, under the drive of the screw conveyor shaft, the material gradually moves along the screw channel towards the discharge pipe and is finally discharged from the discharge pipe, realizing the continuous conveying process of the material. At the same time, the sealing bearing ensures the sealing during the conveying process and avoids material leakage.

[0020] In summary, this application includes the following beneficial technical effects:

[0021] 1. The design of the casters and adjustable feet allows the machine to be easily moved around the workplace, and the adjustable feet under the support plate can be adjusted to achieve horizontal stability, ensuring the stability and safety of the equipment during movement and use;

[0022] 2. The machine frame is equipped with a feed hopper and a discharge hopper. The feed hopper has a feed port on the upper end to facilitate the entry of raw materials. The stirring device inside the feed hopper can efficiently stir and mix the raw materials to ensure uniformity.

[0023] 3. The discharge groove below the discharge hopper precisely guides the mixed raw materials into the conveying pipe. Driven by the screw conveyor, the raw materials are evenly transported to the work site through the connected discharge pipe.

[0024] 4. The design of the support plate and support frame ensures that the conveying pipeline can be placed stably, effectively preventing problems such as raw material spillage or poor conveying caused by improper pipeline movement. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the feeding device for producing polyacrylamide dry powder according to this application;

[0026] Figure 2 This is the feeding device for the production of polyacrylamide dry powder in this application. Figure 1 A structural schematic diagram of the front view;

[0027] Figure 3 This is the feeding device for the production of polyacrylamide dry powder in this application. Figure 1 A schematic diagram of the structure of a partial half-section view of the feed hopper;

[0028] Figure 4 This is a partial half-sectional view of the discharge hopper in the feeding device for producing polyacrylamide dry powder according to this application.

[0029] Figure 5 This is a structural schematic diagram of section A in the feeding device for producing polyacrylamide dry powder according to this application, which is an enlarged view.

[0030] Explanation of reference numerals in the attached drawings: 100, frame; 101, caster wheel; 1, feed hopper; 11, feed inlet; 2, discharge hopper; 21, discharge groove; 3, conveying pipe; 30, support plate; 31, discharge pipe; 32, sealing gasket; 4, stirring shaft; 41, stirring blade; 42, stirring motor; 5, support frame; 51, adjustable support foot; 61, screw conveyor shaft; 62, drive motor. Detailed Implementation

[0031] The present application will be further described in detail below with reference to the accompanying drawings.

[0032] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 This application discloses a feeding device for the production of polyacrylamide dry powder. The device includes a frame 100, casters 101 respectively located at the four corners of the lower end face of the frame 100, a feed hopper 1 fixedly installed inside the frame 100, a feed inlet 11 located on the upper end face of the feed hopper 1, a stirring device located inside the feed hopper 1, a discharge hopper 2 located on the lower end face of the feed hopper 1, a discharge groove 21 located at the middle of the lower end face of the discharge hopper 2, a conveying pipe 3 connected to the discharge groove 21, a spiral conveying device located between the conveying pipe 3 and the discharge groove 21, a discharge pipe 31 connected to the conveying pipe 3, a support plate 30 located on the lower end face of the conveying pipe 3, a support frame 5 connected to the support plate 30, and adjustable feet 51 respectively located at the four corners of the lower end face of the support frame 5. The design of the casters 101 and adjustable feet 51 in this invention not only allows the machine to move easily in the workplace, but also enables horizontal stability by adjusting the adjustable feet 51 under the support plate 30, ensuring the stability and safety of the equipment during movement and use. The frame 100 is equipped with a feed hopper 1 and a discharge hopper 2. The feed hopper 1 has a feed port 11 on its upper surface to facilitate the entry of raw materials. The mixing device inside the feed hopper 1 can efficiently mix the raw materials to ensure uniformity. The discharge groove 21 below the discharge hopper 2 accurately guides the mixed raw materials into the conveying pipe 3. Driven by the screw conveyor, the raw materials are evenly transported to the working site through the discharge pipe 31 connected to it. The design of the support plate 30 and the support frame 5 ensures that the conveying pipe 3 can be placed stably, effectively preventing problems such as raw material spillage or poor conveying caused by improper movement of the conveying pipe 3.

[0033] Please refer to the details. Figure 1 , Figure 2 and Figure 3A feeding device for producing polyacrylamide dry powder includes a frame 100, casters 101 respectively located at the four corners of the lower end face of the frame 100, a feeding hopper 1 fixedly installed inside the frame 100, a feed inlet 11 located on the upper end face of the feeding hopper 1, and a stirring device installed inside the feeding hopper 1. The stirring device includes a stirring shaft 4 installed inside the feeding hopper 1, stirring blades 41 evenly distributed around the outer periphery of the stirring shaft 4, and a stirring motor 42 connected to the stirring shaft 4. The stirring motor 42 is fixedly installed on the upper end face of the feeding hopper 1, and its output shaft passes through the feeding hopper 1 and connects to the stirring shaft 4. When the stirring motor 42 is started, its output shaft drives the stirring shaft 4 installed inside the feeding hopper 1 to rotate, and the stirring blades 41 evenly distributed around the outer periphery of the stirring shaft 4 rotate accordingly, thereby fully stirring the material in the feeding hopper 1 and preventing material accumulation inside the feeding hopper 1. In this way, the stirring device can achieve efficient material stirring in the feeding hopper 1, which facilitates material discharge and improves processing efficiency and product quality.

[0034] Please refer to the details. Figure 3 , Figure 4 and Figure 5 The system includes a discharge hopper 2 located on the lower end face of the feed hopper 1, a discharge groove 21 located in the middle of the lower end face of the discharge hopper 2, and a conveying pipe 3 connected to the discharge groove 21. The upper end face of the discharge hopper 2 is connected to the discharge port of the feed hopper 1 via a flange, and a sealing ring is provided at the connection between the discharge hopper 2 and the feed hopper 1. The discharge port of the feed hopper 1 is connected to the upper end face of the discharge hopper 2 via a flange, and a sealing ring is provided at the connection between the two to ensure the sealing of the connection part, effectively preventing material leakage during the feeding process, and facilitating the feeding of material from the feed hopper 1 into the discharge hopper 2.

[0035] Please refer to the details. Figure 3 , Figure 4 and Figure 5 The discharge groove 21 is set as a semi-circle, and the discharge groove 21 is located at the lowest end of the inclined surface of the discharge hopper 2, so that the material entering the discharge hopper 2 will automatically fall into the discharge groove 21 due to its own weight.

[0036] Please refer to the details. Figure 4 and Figure 5The discharge groove 21 and the conveying pipe 3 are set with the same curvature. A sealing gasket 32 ​​is provided at the connection between the conveying pipe 3 and the discharge hopper 2. The discharge groove 21 is designed as a semi-circle and is located at the lowest end of the inclined surface of the discharge hopper 2. This allows the material entering the discharge hopper 2 to automatically slide into the discharge groove 21 by its own weight, thus achieving automatic material discharge. Simultaneously, the discharge groove 21 and the conveying pipe 3 are set with the same curvature, and a sealing gasket 32 ​​is provided at the connection between the conveying pipe 3 and the discharge hopper 2. This ensures that the material smoothly enters the conveying pipe 3 from the discharge hopper 2 through the discharge groove 21 while maintaining a good sealing effect and reducing material leakage. Through the action of the screw conveyor, the material smoothly enters the conveying pipe 3 from the discharge hopper 2 via the discharge groove 21, ultimately realizing the material conveying process. This provides an efficient material conveying solution, simplifies the logistics process, and improves production efficiency.

[0037] Please refer to the details. Figure 3 , Figure 4 and Figure 5 The system includes a spiral conveying device located between the conveying pipe 3 and the discharge groove 21, and a discharge pipe 31 connected to the conveying pipe 3. The spiral conveying device includes a spiral conveying shaft 61 located inside the conveying pipe 3 and a drive motor 61 for driving the spiral conveying shaft 61. One end of the spiral conveying shaft 61 is connected to the discharge groove 21, and the other end of the spiral conveying shaft 61 is connected to the end of the conveying pipe 3 away from the discharge hopper 2. A sealed bearing is provided at the connection between the spiral conveying shaft 61, the discharge groove 21, and the conveying pipe 3. The drive motor 61 is fixedly mounted on the support frame 5, and the output shaft of the drive motor 61 passes through the conveying pipe 3 and is connected to the spiral conveying shaft 61. A spiral conveying shaft 61 is provided inside the conveying pipe 3. One end of the spiral conveying shaft 61 is connected to the discharge groove 21 through the sealed bearing, and the other end is connected to the end of the conveying pipe 3 away from the discharge hopper 2 in the same way, forming a sealed spiral channel. The drive motor 61 is fixed on the support frame 5 and directly connected to the screw conveyor shaft 61 through its output shaft, driving the screw conveyor shaft 61 to rotate. When the material enters the conveying pipe 3 from the discharge groove 21, under the drive of the screw conveyor shaft 61, the material gradually moves along the screw channel towards the discharge pipe 31 and is finally discharged from the discharge pipe 31, realizing the continuous conveying process of the material. At the same time, the sealing bearing ensures the sealing during the conveying process and avoids material leakage.

[0038] The implementation principle of the feeding device for producing polyacrylamide dry powder according to this application embodiment is as follows: During use, the upper end face of the feeding hopper 1 is provided with a feeding port 11 to facilitate the entry of raw materials. When the stirring motor 42 is started, its output shaft drives the stirring shaft 4, which is set in the inner cavity of the feeding hopper 1, to rotate. The stirring blades 41, evenly distributed on the outer circumference of the stirring shaft 4, rotate accordingly, thereby fully stirring the material in the feeding hopper 1 and preventing material accumulation in the feeding hopper 1. The material entering the discharge hopper 2 can automatically slide into the discharge groove 21 by its own weight, thus realizing automatic material discharge. The drive motor 61 is fixed on the support frame 5 and is directly connected to the screw conveyor shaft 61 through its output shaft, driving the screw conveyor shaft 61 to rotate. When the material enters the conveying pipe 3 from the discharge groove 21, under the drive of the screw conveyor shaft 61, the material gradually moves along the spiral channel towards the discharge pipe 31 and is finally discharged from the discharge pipe 31, realizing the continuous material conveying process.

[0039] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A feeding device for the production of polyacrylamide dry powder, characterized in that: The device includes a frame (100), movable wheels (101) respectively located at the four corners of the lower end face of the frame (100), a feed hopper (1) fixedly located in the inner cavity of the frame (100), a feed inlet (11) located on the upper end face of the feed hopper (1), a stirring device located in the inner cavity of the feed hopper (1), a discharge hopper (2) located on the lower end face of the feed hopper (1), a discharge groove (21) located at the middle position of the lower end face of the discharge hopper (2), a conveying pipe (3) connected to the discharge groove (21), a spiral conveying device located between the conveying pipe (3) and the discharge groove (21), a discharge pipe (31) connected to the conveying pipe (3), a support plate (30) located on the lower end face of the conveying pipe (3), a support frame (5) connected to the support plate (30), and adjustable feet (51) respectively located at the four corners of the lower end face of the support frame (5).

2. The feeding device for producing polyacrylamide dry powder according to claim 1, characterized in that: The stirring device includes a stirring shaft (4) disposed in the inner cavity of the feed hopper (1), stirring blades (41) uniformly disposed on the outer periphery of the stirring shaft (4), and a stirring motor (42) connected to the stirring shaft (4).

3. The feeding device for producing polyacrylamide dry powder according to claim 2, characterized in that: The stirring motor (42) is fixedly installed on the upper end face of the feed hopper (1), and the output shaft of the stirring motor (42) passes through the feed hopper (1) and is connected to the stirring shaft (4).

4. The feeding device for producing polyacrylamide dry powder according to claim 3, characterized in that: The upper end face of the discharge hopper (2) is connected to the discharge port of the feed hopper (1) through a flange, and a sealing ring is provided at the connection between the discharge hopper (2) and the feed hopper (1).

5. The feeding device for producing polyacrylamide dry powder according to claim 4, characterized in that: The discharge groove (21) is set as a semi-circle, and the discharge groove (21) is located at the lowest end of the inclined surface of the discharge hopper (2).

6. The feeding device for producing polyacrylamide dry powder according to claim 5, characterized in that: The discharge groove (21) is set with the same curvature as the conveying pipe (3), and a sealing gasket (32) is provided at the connection between the conveying pipe (3) and the discharge hopper (2).

7. The feeding device for producing polyacrylamide dry powder according to claim 6, characterized in that: The screw conveyor includes a screw conveyor shaft (61) disposed in the conveying pipe (3) and a drive motor (62) for driving the screw conveyor shaft (61). One end of the screw conveyor shaft (61) is connected to the discharge groove (21), and the other end of the screw conveyor shaft (61) is connected to the end of the conveying pipe (3) that is away from the discharge hopper (2). A sealed bearing is provided at the connection between the screw conveyor shaft (61) and the discharge groove (21) and the conveying pipe (3).

8. The feeding device for producing polyacrylamide dry powder according to claim 7, characterized in that: The drive motor (62) is fixedly mounted on the support frame (5), and the output shaft of the drive motor (62) passes through the conveying pipe (3) and is connected to the spiral conveying shaft (61).