A polymerization inhibitor adding device for acrylamide production

CN224777961UActive Publication Date: 2026-09-22ANHUI TIANRUN CHEM CO LTD
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Patent Information

Application Number
CN202522114327.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-30
Publication Date
2026-09-22
Estimated Expiration
2035-09-30

AI Technical Summary

Technical Problem

然而,该方式存在明显不足:密封状态下,阻聚剂在下料过程中易因重力作用持续下落,难以实现精准控制,导致添加速率不稳定

Benefits of technology

1、本实用新型通过设置可调节的下料机构(如连接杆、支撑梁和密封块等结构),通过驱动密封块实现少量多次的精准下料,有效解决了阻聚剂持续下料导致的混合不均问题;

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Abstract

The utility model discloses an acrylamide production is with inhibitor adding device, including storage tank, motor and hopper, the motor passes through the support and is installed at the right side of storage tank, the top of storage tank is opened with rectangular groove, the bottom fixedly connected with rectangular pipeline of hopper, and rectangular pipeline is inserted in the inside of rectangular groove and with rectangular groove fixed, the inside insertion of rectangular pipeline has support beam, and the surface fixed cover of support beam has sealing block, the fixedly connected with connecting rod of the center of support beam, and the connecting rod is through transmission mechanism and is connected with the stirring rod.
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Description

Technical Field

[0001] This utility model relates to the field of polymerization inhibitor addition technology, and in particular to a polymerization inhibitor addition device for acrylamide production. Background Technology

[0002] In the acrylamide production process, the addition of polymerization inhibitors is a key step to ensure reaction stability and product quality. Traditional polymerization inhibitor addition devices usually adopt a storage hopper structure. Operators need to put the polymerization inhibitor raw materials into the storage hopper and then seal the top to prevent external contamination or raw material volatilization. However, this method has significant drawbacks: in a sealed state, the polymerization inhibitor tends to fall continuously due to gravity during the feeding process, making precise control difficult and resulting in an unstable addition rate. Furthermore, the polymerization inhibitor raw material tends to adhere to the inner wall of the storage hopper, causing poor feeding or localized blockages, further exacerbating the problem of uneven addition. This not only affects the mixing effect between the polymerization inhibitor and the reaction system but may also trigger uncontrolled local polymerization reactions, reducing product yield and quality. Therefore, we propose a polymerization inhibitor addition device for acrylamide production to solve the above problems. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a device for adding polymerization inhibitors in the production of acrylamide.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: An inhibitor addition device for acrylamide production includes a storage tank, a motor, and a hopper. The motor is mounted on the right side of the storage tank via a bracket. A rectangular groove is formed at the top of the storage tank. A rectangular pipe is fixedly connected to the bottom of the hopper and inserted into and fixed to the rectangular groove. A support beam is inserted inside the rectangular pipe, and a sealing block is fixedly fitted on the surface of the support beam. A connecting rod is fixedly connected to the center of the support beam, and the connecting rod is connected to a stirring rod through a transmission mechanism. One end of the stirring rod is located inside the storage tank, and one end of the stirring rod is fixedly connected to the output end of the motor. A stirring paddle is fixedly fitted on the surface of the end of the stirring rod located inside the storage tank.

[0005] Preferably, the transmission mechanism consists of two sets of pulleys and one belt. The two sets of pulleys are fixed to the connecting rod and the stirring rod, respectively, and the two sets of pulleys are connected by the belt.

[0006] Preferably, a support beam is installed on the right side of the hopper at the top of the storage tank, and a guide seat is fixedly installed at the middle position of the top of the support beam. A guide rod is inserted inside the guide rod, and a support is installed at the bottom of the guide rod. A movable rod is installed on the central bearing of the support, and a first eccentric wheel is connected to the top of the movable rod. A second conical wheel is connected to the bottom of the movable rod. A second eccentric wheel and a third eccentric wheel are respectively engaged on both sides of the first eccentric wheel, and the second eccentric wheel and the third eccentric wheel are connected to the guide rod.

[0007] Preferably, a first conical wheel is fixedly sleeved on the surface of the connecting rod, and the first conical wheel is meshed with a second conical wheel.

[0008] Preferably, a rubber hammer is fixedly installed on the left side of the guide rod, and the rubber hammer is spherical.

[0009] Preferably, the guide rod has a trapezoidal structure, the guide seat has a trapezoidal groove inside, the guide rod is inserted into the trapezoidal groove, and the guide rod and the guide seat are slidably connected.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model solves the problem of uneven mixing caused by continuous feeding of the polymerization inhibitor by setting an adjustable feeding mechanism (such as a connecting rod, a support beam and a sealing block, etc.) and driving the sealing block to achieve precise feeding of small amounts multiple times. 2. The device is equipped with a stirring paddle and an automatic anti-clogging mechanism (such as a guide seat, a first eccentric wheel, a support, a second eccentric wheel, a third eccentric wheel, and a guide rod). During the addition of the polymerization inhibitor, stirring and vibration are carried out simultaneously, which further optimizes the mixing effect. Through the synergistic effect of stirring and external tapping, the accumulation and blockage of raw materials in the storage hopper are avoided, thus improving the automation level and reliability of the device. Attached Figure Description

[0011] Figure 1 This is a three-dimensional structural diagram of an inhibitor addition device for acrylamide production proposed in this utility model; Figure 2 for Figure 1 A three-dimensional diagram illustrating the connection between the stirring rod and the connecting rod in the diagram. Figure 3 for Figure 1 A three-dimensional bottom view of the meshing structure of the first and second conical wheels in the diagram; Figure 4 for Figure 1 A three-dimensional cross-sectional view of the hopper structure in the middle; Figure 5 for Figure 1 A three-dimensional bottom view of the structure of the first, second, and third eccentric wheels.

[0012] In the diagram: 1. Storage tank; 2. Motor; 3. Hopper; 4. Rectangular pipe; 5. Transmission mechanism; 6. Connecting rod; 7. First conical wheel; 8. Guide seat; 9. Support beam; 10. Sealing block; 11. Agitator; 12. Agitator rod; 13. Second conical wheel; 14. First eccentric wheel; 15. Support; 16. Second eccentric wheel; 17. Third eccentric wheel; 18. Guide rod; 19. Rubber hammer. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0014] Reference Figure 1-5 An inhibitor addition device for acrylamide production includes a storage tank 1, a motor 2, and a hopper 3. The motor 2 is mounted on the right side of the storage tank 1 via a bracket. A rectangular groove is formed at the top of the storage tank 1. A rectangular pipe 4 is fixedly connected to the bottom of the hopper 3 and is inserted into and fixed to the rectangular groove. A support beam 9 is inserted inside the rectangular pipe 4, and a sealing block 10 is fixedly fitted on the surface of the support beam 9. A connecting rod 6 is fixedly connected to the center of the support beam 9, and the connecting rod 6 is connected to a stirring rod 12 via a transmission mechanism 5. One end of the stirring rod 12 is located inside the storage tank 1, and one end of the stirring rod 12 is fixedly connected to the output end of the motor 2. A stirring paddle 11 is fixedly fitted on the surface of the end of the stirring rod 12 located inside the storage tank 1.

[0015] Furthermore, refer to Figure 2 It can be seen that the transmission mechanism 5 consists of two sets of pulleys and one belt. The two sets of pulleys are fixed to the connecting rod 6 and the stirring rod 12 respectively. The two sets of pulleys are connected by the belt. During use, the transmission assembly facilitates the synchronous rotation of the connecting rod 6 and the stirring rod 12.

[0016] Furthermore, refer to Figure 2 It can be seen that a support beam 9 is installed on the right side of the hopper 3 at the top of the storage tank 1, and a guide seat 8 is fixedly installed at the middle position of the top of the support beam 9. A guide rod 18 is inserted inside the guide rod 18, and a support 15 is installed at the bottom of the guide rod 18. A movable rod is installed on the central bearing of the support 15, and a first eccentric wheel 14 is connected to the top of the movable rod. A second conical wheel 13 is connected to the bottom of the movable rod. A second eccentric wheel 16 and a third eccentric wheel 17 are respectively engaged on both sides of the first eccentric wheel 14, and the second eccentric wheel 16 and the third eccentric wheel 17 are connected to the guide rod 18.

[0017] Furthermore, refer to Figure 3 and Figure 4 It can be seen that the surface of the connecting rod 6 is fixedly fitted with a first conical wheel 7, and the first conical wheel 7 is meshed with the second conical wheel 13. During use, the first conical wheel 7 and the second conical wheel 13 work together to achieve the transmission function.

[0018] Furthermore, refer to Figure 5 It can be seen that a rubber hammer 19 is fixedly installed on the left side of the guide rod 18, and the rubber hammer 19 is spherical. During use, the rubber hammer 19 is used to periodically vibrate the surface of the hopper 3 to prevent the raw materials from adhering and to ensure that the polymerization inhibitor is uniform.

[0019] Furthermore, refer to Figure 5 It can be seen that the guide rod 18 has a trapezoidal structure, and the guide seat 8 has a trapezoidal groove inside. The guide rod 18 is inserted into the trapezoidal groove, and the guide rod 18 and the guide seat 8 are slidably connected. During use, the guide rod 18 moves along the inside of the trapezoidal groove. The trapezoidal groove can limit the guide rod 18, which facilitates its linear left and right movement.

[0020] Working principle: When using this utility model, according to the appendix Figure 1 Appendix Figure 2 Appendix Figure 3 Appendix Figure 4 and attached Figure 5 As shown, the operator first powers on the motor 2. The output of the motor 2 rotates, which drives the stirring rod 12 to rotate. The stirring rod 12 drives the stirring paddle 11 to rotate. At the same time, the rotation of the stirring rod 12 drives the connecting rod 6 to rotate through the transmission mechanism 5. The rotation of the connecting rod 6 drives the sealing block 10 to rotate. Simultaneously, the first conical wheel 7 on the surface of the connecting rod 6 rotates. The rotation of the first conical wheel 7 drives the second conical wheel 13 to rotate. The rotation of the second conical wheel 13 drives the first eccentric wheel 14 to rotate. The rotation of the first eccentric wheel 14 drives the second eccentric wheel 16 and the third eccentric wheel 17 to rotate. Through the cooperation of the first eccentric wheel 14, the second eccentric wheel 16 and the third eccentric wheel 17, it is easy to move the guide rod 18 back and forth along the inside of the guide seat 8. The rubber hammer 19 taps the surface of the hopper 3 to prevent the raw materials from sticking. After the device is started, the staff put the raw materials into the hopper 3. The sealing block 10 can be rotated to feed the materials in small amounts multiple times. When the raw materials fall into the storage tank 1, they can be stirred by rotating the stirring paddle 11 to facilitate thorough mixing. At the same time, the rubber hammer 19 can tap the surface of the hopper 3 to prevent the raw materials from sticking together. The operation is then complete. The above is the complete working principle of this utility model.

[0021] In this utility model, the installation, connection or setting methods of all the components mentioned above are common mechanical methods, and the specific structure, model and coefficient index of all the components are their own technologies. As long as they can achieve their beneficial effects, they can be implemented, so they will not be described in detail.

[0022] The above embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.

[0023] In this utility model, unless otherwise stated, directional terms such as "up, down, left, right, front, back, inside, outside, and vertical and horizontal" in the terminology only represent the orientation of the term in its conventional use or are common names understood by those skilled in the art, and should not be regarded as limitations on the term. At the same time, numerals such as "first," "second," and "third" do not represent specific quantities or orders, but are only used to distinguish names. Moreover, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a series of elements includes not only those elements, but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

Claims

1. A device for adding a polymerization inhibitor in the production of acrylamide, comprising a storage tank (1), a motor (2), and a hopper (3), characterized in that: The motor (2) is mounted on the right side of the storage tank (1) by a bracket. A rectangular groove is provided at the top of the storage tank (1). A rectangular pipe (4) is fixedly connected to the bottom of the hopper (3). The rectangular pipe (4) is inserted into the rectangular groove and fixed to the rectangular groove. A support beam (9) is inserted inside the rectangular pipe (4). A sealing block (10) is fixedly fitted on the surface of the support beam (9). A connecting rod (6) is fixedly connected to the center of the support beam (9). The connecting rod (6) is connected to the stirring rod (12) through a transmission mechanism (5). One end of the stirring rod (12) is located inside the storage tank (1). One end of the stirring rod (12) is fixedly connected to the output end of the motor (2). A stirring paddle (11) is fixedly fitted on the surface of the end of the stirring rod (12) located inside the storage tank (1).

2. The device for adding polymerization inhibitors in acrylamide production according to claim 1, characterized in that, The transmission mechanism (5) consists of two sets of pulleys and a belt. The two sets of pulleys are fixed to the connecting rod (6) and the stirring rod (12) respectively, and the two sets of pulleys are connected by a belt.

3. The device for adding polymerization inhibitors in acrylamide production according to claim 1, characterized in that, The top of the storage tank (1) is a support beam (9) installed on the right side of the hopper (3), and a guide seat (8) is fixedly installed at the middle position of the top of the support beam (9). The guide rod (18) is inserted inside the guide rod (18), and a support (15) is installed at the bottom of the guide rod (18). A movable rod is installed on the central bearing of the support (15), and a first eccentric wheel (14) is connected to the top of the movable rod. A second conical wheel (13) is connected to the bottom of the movable rod. A second eccentric wheel (16) and a third eccentric wheel (17) are respectively engaged on both sides of the first eccentric wheel (14), and the second eccentric wheel (16) and the third eccentric wheel (17) are connected to the guide rod (18).

4. The device for adding polymerization inhibitors in acrylamide production according to claim 1, characterized in that, The surface of the connecting rod (6) is fixedly fitted with a first conical wheel (7), and the first conical wheel (7) is meshed with the second conical wheel (13).

5. The device for adding polymerization inhibitors in acrylamide production according to claim 3, characterized in that, A rubber hammer (19) is fixedly installed on the left side of the guide rod (18), and the rubber hammer (19) is spherical.

6. The device for adding polymerization inhibitors in acrylamide production according to claim 3, characterized in that, The guide rod (18) has a trapezoidal structure, and the guide seat (8) has a trapezoidal groove inside. The guide rod (18) is inserted into the trapezoidal groove, and the guide rod (18) and the guide seat (8) are slidably connected.