Feeding device for preparing polymerization inhibitor

By adjusting the feeding hole and combining centrifugal swinging with stirring, the problem of compound additive accumulation in the preparation of inhibitor is solved, the uniform dispersion and rapid mixing of the compound additive are achieved, and the production efficiency is improved.

CN223366658UActive Publication Date: 2025-09-23ZHENXING FINE CHEM CO LTD
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Patent Information

Application Number
CN202422521436.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-17
Publication Date
2025-09-23
Estimated Expiration
2034-10-17

AI Technical Summary

Technical Problem

In the existing polymerization inhibitor preparation process, compound additives tend to accumulate on one side of the mixing tank, making it difficult for them to fully contact with the polymerization inhibitor raw materials, thus affecting production efficiency.

Method used

The size of the feeding hole is adjusted by rotating the spacer, and the transmission shaft drives the conical disk to generate centrifugal force to swing the compound additives. Combined with the motor-driven mixing rod for stirring, the compound additives are added and dispersed slowly and evenly.

Benefits of technology

The compound additive is more evenly dispersed during the preparation of the polymerization inhibitor, which improves the mixing efficiency, avoids the need for long-term stirring, and improves production efficiency.

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Abstract

The feeding device is applied to the technical field of polymerization inhibitor preparation and comprises a preparation tank, a feeding port is connected to the top of the preparation tank in a bolting mode, an auxiliary tank is connected to the top of the feeding port in a bolting mode, a rotating spacer bush is connected to the ends, close to each other, of the feeding port and the auxiliary tank in a rotating and sleeving mode, and the rotating spacer bush is connected with a rotating shaft. First feeding holes are formed in the ends, close to the rotating spacer bush, of the feeding port and the auxiliary tank, and second feeding holes communicating with the first feeding holes are formed in the rotating spacer bush. The overlapping range of the second feeding hole and the first feeding hole is adjusted by rotating the rotating spacer bush, so that the sizes of the two communicated holes are changed. The feeding speed of the compound additive is adjusted according to the pore size, so that the compound additive is slowly and uniformly added into the preparation tank from the interior of the additive tank. And meanwhile, after the feeding speed is adjusted, people do not need to watch, and actual use is facilitated.
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Description

Technical Field

[0001] The utility model belongs to the technical field of polymerization inhibitor preparation, in particular to a feeding device for polymerization inhibitor preparation. Background Art

[0002] Polymerization inhibitors are industrial additives typically used to prevent polymerization. During the production process, existing polymerization inhibitors typically incorporate additives such as potassium tert-butoxide, ethylene oxide, alcohols, and ureas into the main raw materials. These additives can significantly enhance the inhibitor's effectiveness in inhibiting polymerization.

[0003] Currently, a Chinese utility model with publication number CN218741789U discloses a quantitative dosing device for preparing a composite polymerization inhibitor, which relates to the technical field of composite polymerization inhibitor dosing equipment. The device comprises a base plate and a delivery pipe, the delivery pipe being assembled above the base plate, and a drive motor being fixedly mounted on the outside of the delivery pipe. The device utilizes a servo motor and a transmission shaft, a dosing chamber, and a weighing device to coordinate the use of the device. When the composite polymerization inhibitor raw material is output through an output valve, the composite polymerization inhibitor raw material falls into the dosing chamber and is weighed on the weighing device. When the set weight value is reached, the output valve is closed, the servo motor is started, and the drive shaft thereof drives the transmission shaft to rotate, which in turn drives the dosing chamber to deflect, and the weighed composite polymerization inhibitor raw material in the dosing chamber is poured out, thereby achieving quantitative dosing. The weighing device provided in the dosing chamber can ensure the accuracy of the weighing data.

[0004] Existing polymerization inhibitor feeding systems typically precisely weigh these auxiliary compounds and pour them directly into a mixing tank to mix with the polymerization inhibitor raw material. While this method of feeding is relatively quick, it can lead to insufficient dispersion of the auxiliary compounds, causing them to accumulate on one side of the mixing tank, preventing them from fully contacting the polymerization inhibitor raw material. This requires extensive stirring in the mixing tank to ensure uniform mixing of the polymerization inhibitor raw material and auxiliary compounds, significantly impacting polymerization inhibitor production efficiency. Utility Model Content

[0005] The purpose of the utility model is to provide a feeding device for preparing polymerization inhibitor, which has the advantages of enabling compound additives to be fed slowly and evenly, improving the dispersion of the fed materials, and facilitating the rapid mixing and preparation of the polymerization inhibitor.

[0006] The above technical objectives of the present utility model are achieved through the following technical solutions: a feeding device for preparing an inhibitor, comprising a preparation tank, a feeding port bolted to the top of the preparation tank, an auxiliary agent tank bolted to the top of the feeding port, a rotating sleeve rotatably connected to the end of the feeding port and the auxiliary agent tank close to each other, a first feeding hole is opened in the feeding port and the end of the auxiliary agent tank close to the rotating sleeve, a second feeding hole connected to the first feeding hole is opened inside the rotating sleeve; a transmission shaft rotatably connected to the rotating spacer and passing through the rotating spacer is rotatably connected to the inside of the auxiliary agent tank, a conical disk used in conjunction with the feeding port is bolted to the bottom of the transmission shaft, a limiting flow plate is welded to the surface of the top of the conical disk, a first motor bolted to the auxiliary agent tank is provided on one side of the top of the preparation tank, and the output end of the first motor is bolted to the transmission shaft.

[0007] By adopting the above technical solution, the overlapping range of the second feeding hole and the first feeding hole is adjusted by rotating the rotating spacer, so that the size of the two connected pores changes. Therefore, the feeding speed of the compound additive is adjusted according to the pore size, so that it is slowly and evenly added from the inside of the additive tank to the preparation tank. At the same time, after the feeding speed is adjusted, no personnel supervision is required, which is convenient for actual use. By turning on the first motor and using the transmission shaft to drive the conical disk to rotate inside the feeding port, the centrifugal force generated can swing the compound additive on the conical disk. In this way, the compound additive is added to the inside of the preparation tank in a more dispersed manner, preventing accumulation on one side, and improving the efficiency of the polymerization inhibitor mixing preparation.

[0008] The utility model is further configured as follows: a second motor is bolted to one side of the outside of the preparation tank, and an output end of the second motor is bolted to a mixing rod rotatably connected to the preparation tank.

[0009] By adopting the above technical solution, the second motor is turned on to drive the mixing rod to rotate inside the preparation tank, so that the compound additive and the polymerization inhibitor added into the preparation tank can be mixed.

[0010] The utility model is further configured as follows: a feeding port is opened on one side of the top of the auxiliary agent tank, and a scale is engraved on the surface of the auxiliary agent tank.

[0011] By adopting the above technical solution, the weighed compound additive can be poured into the interior of the additive tank through the feed port for slow and uniform addition, while the scale can be used to measure the remaining amount of the compound additive inside the additive tank.

[0012] The utility model is further configured as follows: a toothed belt pulley is fixedly sleeved on the surface of one end of the transmission shaft away from the conical disk, and a toothed belt is connected to the surface of the toothed belt pulley for transmission.

[0013] By adopting the above technical solution, the toothed belt is used to synchronously drive all the toothed pulleys to rotate, so that the first motor can simultaneously drive the transmission shafts inside the multiple additive tanks to rotate.

[0014] The utility model is further configured as follows: a stirring rod is welded on the surface of one end of the transmission shaft close to the interior of the auxiliary agent tank.

[0015] By adopting the above technical solution, the compound additive can be stirred by the stirring rod when the transmission shaft rotates, thereby facilitating downward sliding and discharging of the material.

[0016] The utility model is further configured as follows: a surface of the transmission shaft close to one end of the rotating spacer and an inner surface of the rotating spacer are both clamped with a sealing ring.

[0017] The above technical solution improves the sealing performance and prevents the compound additive from leaking from the gap between the feeding port and the additive tank and the rotating spacer, as well as the gap between the transmission shaft and the feeding port, the additive tank and the rotating spacer.

[0018] In summary, the present invention has the following beneficial effects:

[0019] 1. By rotating the spacer, the overlap between the second and first feeding holes is adjusted, changing the size of the two connected pores. The addition rate of the compound additive is adjusted according to the pore size, allowing it to be added slowly and evenly from the additive tank to the preparation tank. Once the addition rate is adjusted, no human supervision is required, making it convenient for practical use.

[0020] 2. By turning on the first motor and using the drive shaft to drive the conical disc to rotate inside the feeding port, the centrifugal force generated can swing the compound additives on the conical disc. This allows the compound additives to be added to the preparation tank more dispersedly, preventing accumulation on one side, and improving the efficiency of the inhibitor mixing preparation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the utility model;

[0022] Figure 2 It is a cross-sectional view of the structure of the utility model;

[0023] Figure 3 This utility model Figure 2 A magnified view of point A in the figure;

[0024] Figure 4 It is a top sectional view of the local structure of the utility model.

[0025] Figure numerals: 1. preparation tank; 2. feeding port; 3. additive tank; 4. rotating sleeve; 5. first feeding hole; 6. second feeding hole; 7. first motor; 8. transmission shaft; 9. conical disk; 10. flow limiting plate; 11. second motor; 12. mixing rod; 13. feeding port; 14. toothed pulley; 15. toothed belt; 16. stirring rod; 17. scale; 18. sealing ring. DETAILED DESCRIPTION

[0026] The present invention will be described in further detail below with reference to the accompanying drawings.

[0027] Example 1:

[0028] refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 A feeding device for preparing polymerization inhibitors includes a preparation tank 1, a feeding port 2 is bolted to the top of the preparation tank 1, an auxiliary agent tank 3 is bolted to the top of the feeding port 2, a rotating sleeve 4 is rotatably connected to the end of the feeding port 2 and the auxiliary agent tank 3 close to each other, and a first feeding hole 5 is opened on the feeding port 2 and the end of the auxiliary agent tank 3 close to the rotating sleeve 4, and a second feeding hole 6 connected to the first feeding hole 5 is opened inside the rotating sleeve 4. The overlapping range of the second feeding hole 6 and the first feeding hole 5 is adjusted by rotating the rotating sleeve 4, so that the size of the two connected pores changes. Therefore, the feeding speed of the compound auxiliary agent is adjusted according to the pore size, so that it is slowly and evenly added from the inside of the auxiliary agent tank 3 to the preparation tank 1. At the same time, after the feeding speed is adjusted, no personnel supervision is required, which is convenient for actual use.

[0029] refer to Figure 1 、 Figure 2 A second motor 11 is bolted to one side of the exterior of the preparation tank 1. A mixing rod 12 is bolted to the output end of the second motor 11, which is rotatably connected to the preparation tank 1. By turning on the second motor 11, the mixing rod 12 rotates inside the preparation tank 1, thereby mixing the compound additives and polymerization inhibitors added to the preparation tank 1.

[0030] refer to Figure 1 、 Figure 2 A feed port 13 is opened on one side of the top of the additive tank 3, and a scale 17 is marked on the surface of the additive tank 3. The weighed compound additive can be poured into the interior of the additive tank 3 through the feed port 13 and added slowly and evenly. At the same time, the scale 17 is used to measure the remaining amount of the compound additive in the additive tank 3.

[0031] Brief description of the usage process: Add the polymerization inhibitor raw material to the inside of the preparation tank 1, and add weighed different types of compound additives to the inside of multiple additive tanks 3. Then, by rotating the rotating sleeve 4, move the second feeding hole 6 to the inside of the first feeding hole 5, so that the first feeding hole 5 and the second feeding hole 6 remain connected, so that the compound additive can slowly and evenly enter the inside of the feeding port 2 from the additive tank 3 through the first feeding hole 5 and the second feeding hole 6, and finally slowly and evenly add it to the inside of the preparation tank 1 to mix with the polymerization inhibitor raw material. At the same time, by rotating the rotating sleeve 4, adjust the overlapping range of the first feeding hole 5 and the second feeding hole 6, so that the size of the two connected pores changes, and then the feeding speed of the compound additive can be adjusted according to the pore size.

[0032] Example 2:

[0033] refer to Figure 1 、 Figure 2 、 Figure 3 A feeding device for preparing polymerization inhibitors, wherein the auxiliary agent tank 3 is internally rotatably connected to a transmission shaft 8 that penetrates and rotates with a rotating spacer 4, the bottom of the transmission shaft 8 is bolted with a conical disk 9 used in conjunction with the feeding port 2, and a limiting plate 10 is welded to the surface of the top of the conical disk 9. A first motor 7 that is bolted to the auxiliary agent tank 3 is provided on one side of the top of the preparation tank 1, and the output end of the first motor 7 is bolted to the transmission shaft 8. By turning on the first motor 7 and utilizing the transmission shaft 8 to drive the conical disk 9 to rotate inside the feeding port 2, the centrifugal force generated can swing the compound auxiliary agent on the conical disk 9. In this way, the compound auxiliary agent is added to the interior of the preparation tank 1 in a more dispersed manner, preventing accumulation on one side, thereby improving the efficiency of the polymerization inhibitor mixing preparation.

[0034] refer to Figure 1 、 Figure 2 A toothed pulley 14 is fixedly mounted on the surface of the transmission shaft 8 at the end away from the conical disk 9. A toothed belt 15 is connected to the surface of the toothed pulley 14. The toothed belt 15 synchronously drives all the toothed pulleys 14 to rotate, so that the first motor 7 can simultaneously drive the transmission shafts 8 inside multiple auxiliary agent tanks 3 to rotate.

[0035] refer to Figure 2 The surface of the transmission shaft 8 near one end of the inner part of the auxiliary agent tank 3 is welded with a stirring rod 16. When the transmission shaft 8 is rotated, the compound auxiliary agent can be stirred by the stirring rod 16, thereby facilitating downward sliding discharging.

[0036] refer to Figure 2 、 Figure 3The surface of the transmission shaft 8 near the end of the rotating spacer 4 and the inner surface of the rotating spacer 4 are both clamped with a sealing ring 18. This improves the sealing performance and prevents the compound additive from leaking from the gap between the feeding port 2 and the gap between the additive tank 3 and the rotating spacer 4, as well as the gap between the transmission shaft 8 and the feeding port 2, the additive tank 3, and the rotating spacer 4.

[0037] Brief description of the operating process: By turning on the first motor 7, the toothed pulley 14 and toothed belt 15 synchronously drive the drive shaft 8 inside the multiple additive tanks 3. Once the additive compound enters the feeding port 2, the flow is restricted by the flow control plate 10, allowing it to scatter from the surface of the conical disk 9 into the preparation tank 1. Simultaneously, the rotation of the conical disk 9 within the feeding port 2, driven by the drive shaft 8, generates centrifugal force, which dissipates the additive compound on the conical disk 9, allowing it to be dispersed and released from the surface, thereby improving the uniformity of the additive compound feeding.

[0038] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A feeding device for preparing a polymerization inhibitor, comprising a preparation tank (1), characterized in that: The top of the preparation tank (1) is bolted with a feeding port (2), and the top of the feeding port (2) is bolted with an auxiliary agent tank (3); the feeding port (2) and the auxiliary agent tank (3) are rotatably sleeved at one end thereof close to each other, and the feeding port (2) and the auxiliary agent tank (3) are both provided with a first feeding hole (5) at one end thereof close to the rotating spacer (4); the interior of the rotating spacer (4) is provided with a second feeding hole (6) connected to the first feeding hole (5); the interior of the auxiliary agent tank (3) is rotatably connected with a transmission shaft (8) that passes through and is rotatably connected to the rotating spacer (4); the bottom of the transmission shaft (8) is bolted with a conical disk (9) used in conjunction with the feeding port (2); a limiting current plate (10) is welded to the surface of the top of the conical disk (9); a first motor (7) bolted to the auxiliary agent tank (3) is provided on one side of the top of the preparation tank (1); the output end of the first motor (7) is bolted to the transmission shaft (8).

2. The feeding device for preparing a polymerization inhibitor according to claim 1, characterized in that: A second motor (11) is bolted to one side of the outside of the preparation tank (1), and a mixing rod (12) rotatably connected to the preparation tank (1) is bolted to the output end of the second motor (11).

3. The feeding device for preparing a polymerization inhibitor according to claim 1, characterized in that: A feed port (13) is opened on one side of the top of the auxiliary agent tank (3), and a scale (17) is marked on the surface of the auxiliary agent tank (3).

4. The feeding device for preparing a polymerization inhibitor according to claim 1, characterized in that: A toothed belt pulley (14) is fixedly sleeved on the surface of one end of the transmission shaft (8) away from the conical disk (9), and a toothed belt (15) is connected to the surface of the toothed belt pulley (14) for transmission.

5. The feeding device for preparing a polymerization inhibitor according to claim 1, characterized in that: A stirring rod (16) is welded to the surface of one end of the transmission shaft (8) close to the interior of the auxiliary agent tank (3).

6. The feeding device for preparing a polymerization inhibitor according to claim 1, characterized in that: The surface of the transmission shaft (8) close to one end of the rotating spacer (4) and the inner surface of the rotating spacer (4) are both clamped with a sealing ring (18).

Citation Information

Patent Citations

  • Quantitative batching device for preparing composite polymerization inhibitor

    CN218741789U