Modified blending reactor for PBT (polybutylene terephthalate) modified polyester POY (polyester pre-oriented yarn)
By introducing baffles, guide plates, stirring rods, and other structures into the blending reactor, and utilizing turbulence and collision agitation, the problem of uneven mixing during PBT modification was solved, achieving more efficient material mixing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-27
- Publication Date
- 2026-03-03
AI Technical Summary
During the PBT modification process, it is difficult to mix multiple raw materials evenly, resulting in poor mixing effect.
The modified blending reactor design incorporates baffles, guide plates, stirring rods, protrusions, spiral blades, and pressure relief components. It accelerates material mixing and improves uniformity through turbulence, collision, and agitation.
It significantly improved the mixing uniformity of PBT-modified polyester POY, reduced material adhesion and accumulation, and improved mixing efficiency.
Smart Images

Figure CN223959643U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of blending reactor technology, specifically a modified blending reactor for PBT-modified polyester POY. Background Technology
[0002] PBT, or polybutylene terephthalate, is a thermoplastic polyester with fast crystallization speed, short molding cycle, and excellent processing performance. It has high heat resistance, chemical corrosion resistance, mechanical strength, and electrical insulation properties, and is widely used in electronics, automobiles, machinery, and other fields.
[0003] Modification refers to the technical means of changing the original properties of materials through physical or chemical methods, aiming to optimize material characteristics to meet specific needs. For materials such as PBT, there are various modification methods, such as adding fiber reinforcement and mixing in additives to improve flame retardancy or toughness, which can significantly improve their overall performance.
[0004] Before modifying PBT, multiple raw materials need to be put into a blending reactor for stirring and mixing so that the raw materials can react with each other for processing. However, the large amount of raw materials makes it difficult to mix evenly, thus reducing the mixing effect.
[0005] Therefore, a modified blending reactor for PBT-modified polyester POY is proposed to address the above problems. Utility Model Content
[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.
[0007] The technical solution adopted by this utility model to solve its technical problem is as follows: A modified blending reactor for PBT-modified polyester POY, comprising a support plate, with a blending reactor body fixedly connected to the middle of the support plate; a feed inlet is provided at the top of the blending reactor body; a first motor is fixedly connected to the bottom of the blending reactor body; a stirring rod is fixedly connected to the output end of the first motor; the stirring rod is through-connected and rotatably connected to the blending reactor body; multiple baffles are fixedly connected to the inner wall of the blending reactor body; multiple guide plates are fixedly connected to the surface of the baffles; a discharge port is provided on the side wall of the blending reactor body; and a pressure relief assembly is provided at the top of the blending reactor body. By adding baffles, when the stirring rod stirs the material, the material is pushed by the stirring force of the stirring rod to collide with the baffles, thereby generating turbulence. When turbulence occurs, it accelerates the flow rate of the material inside the blending reactor body, thereby accelerating the mixing between materials and increasing the uniformity of mixing. At the same time, the guide plates can guide the impacted material to fall quickly and enter the material.
[0008] Preferably, the baffle has multiple protrusions fixed in the middle; the guide plate has multiple round holes on its surface; by adding protrusions, the materials after collision can be collided a second time to increase the turbulence effect, thereby reducing material adhesion and accelerating the mixing of materials. At the same time, the round holes can distribute some materials to the remaining guide plates, thereby reducing material collision and accumulation.
[0009] Preferably, a plurality of second motors are fixedly connected to the bottom of the blending reactor body; a round rod is fixedly connected to the output end of the second motor; the round rod is through-hole and rotatably connected to the blending reactor body; a spiral blade is fixedly connected to the surface of the round rod; by adding the spiral blade, the material can be turned over multiple times, thereby increasing the tumbling of the material inside the blending reactor body, thereby increasing the contact between the materials and thus accelerating the mixing of the materials.
[0010] Preferably, a cutting blade is fixedly connected to the bottom of the stirring rod; multiple cutting blades are arranged on the stirring rod; by adding cutting blades, the material can be cut by the high-speed rotation of the cutting blades after entering the body of the blending reactor, thereby accelerating the mixing of the material.
[0011] Preferably, a pair of square plates are rotatably connected to the inner wall of the feed inlet; the square plates and the feed inlet are connected by a torsion spring; by adding the square plates, the feed inlet can be closed, thereby reducing the entry of impurities when the feed inlet is not in use.
[0012] Preferably, the pressure relief assembly includes a pressure relief valve; the pressure relief valve and the blending reactor body are in communication; by adding a pressure relief valve, the influence of air pressure on the material removal process can be reduced.
[0013] The advantages of this utility model are:
[0014] 1. The modified blending reactor for PBT-modified polyester POY described in this utility model, by adding baffles, can push the material to collide with the baffles by the stirring force of the stirring rod when the material is stirred, thereby generating turbulence. When turbulence occurs, it will accelerate the flow rate of the material inside the blending reactor body, thereby accelerating the mixing between materials and increasing the uniformity of mixing. At the same time, the guide plate can guide the material after the impact to fall quickly and enter the material.
[0015] 2. The modified blending reactor for PBT-modified polyester POY described in this utility model can increase the turbulence effect by adding protrusions to allow the materials to collide a second time after initial collision, thereby reducing material adhesion and accelerating the mixing of materials. At the same time, the round holes can distribute some of the material to the remaining guide plates, thereby reducing material collision and accumulation. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the main body of this utility model;
[0018] Figure 2 This is a schematic diagram of the feed inlet structure in this utility model;
[0019] Figure 3 This is a schematic diagram of the structure of the stirring rod in this utility model;
[0020] Figure 4 This is a schematic diagram of the structure of the round rod in this utility model;
[0021] Figure 5 This is a schematic diagram of the structure of the baffle in this utility model.
[0022] In the diagram: 1. Support plate; 11. Blending reactor body; 12. Feed inlet; 13. First motor; 14. Stirring rod; 15. Baffle; 16. Guide plate; 17. Discharge port; 18. Pressure relief assembly; 2. Protrusion; 21. Round hole; 3. Second motor; 31. Round rod; 32. Spiral blade; 4. Cutting blade; 5. Square plate; 6. Pressure relief valve. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0024] Specific implementation examples are given below.
[0025] like Figures 1 to 5As shown in the embodiment of this utility model, a modified blending reactor for PBT-modified polyester POY includes a support plate 1, a blending reactor body 11 fixedly connected to the middle of the support plate 1; a feed inlet 12 is provided at the top of the blending reactor body 11; a first motor 13 is fixedly connected to the bottom of the blending reactor body 11; a stirring rod 14 is fixedly connected to the output end of the first motor 13; the stirring rod 14 is through-hole and rotatably connected to the blending reactor body 11; and multiple [unclear] are fixedly connected to the inner wall of the blending reactor body 11. Baffle 15; multiple guide plates 16 are fixedly attached to the surface of baffle 15; a discharge port 17 is provided on the side wall of the blending reactor body 11; a pressure relief assembly 18 is provided on the top of the blending reactor body 11; during operation, multiple materials are first placed and poured into the blending reactor body 11 through the feed port 12. After the materials enter, the first motor 13 is started, causing the first motor 13 to drive the stirring rod 14 to rotate, thereby stirring and mixing the materials inside the blending reactor body 11 through the stirring rod 14. When the stirring rod 14 agitates the material, it pushes the material toward the baffle 15. When the material comes into contact with the baffle 15, it collides with the baffle 15 due to the thrust of the stirring rod 14, which generates turbulence and increases the internal flow of the material, thereby enhancing the turbulence and accelerating the mixing of the material. After the material comes into contact with the baffle 15, it is guided by the guide plate 16 and drips into the mixing reactor body 11 to continue mixing. The mixing reactor body 11 needs to be heated during the mixing process. When the material needs to be removed, the pressure inside the mixing reactor body 11 can be reduced by the pressure relief component 18 to remove it. By adding the baffle 15, the material is pushed by the stirring rod 14 to collide with the baffle 15 when the stirring rod 14 agitates the material, thereby generating turbulence. When turbulence occurs, it accelerates the flow rate of the material inside the mixing reactor body 11, thereby accelerating the mixing between the materials and increasing the uniformity of the mixture. At the same time, the guide plate 16 can guide the impacted material to fall quickly into the mixture.
[0026] like Figure 5As shown, multiple protrusions 2 are fixedly connected to the middle of the baffle 15; multiple circular holes 21 are opened on the surface of the guide plate 16; during operation, when the material comes into contact with the baffle 15, it will also come into contact with the protrusions 2. At this time, it will move upward through the surface of the protrusions 2 and then upward through the end of the protrusions 2. Thus, after colliding with the baffle 15, it moves towards the guide plate 16, causing it to collide with the guide plate 16 again, thereby increasing the dispersion of the material. At the same time, some material will flow out through the circular holes 21 and move towards the upper guide plate 16, making it contact with the upper guide plate 16. After the collision, it will fall along the guide plate 16. By adding protrusions 2, the material after the collision can be collided a second time to increase the turbulence effect, thereby reducing material adhesion and accelerating the mixing of the material. At the same time, the circular holes 21 can distribute some material to the remaining guide plates 16, thereby reducing the material collision and accumulation.
[0027] like Figure 3 As shown, multiple second motors 3 are fixedly connected to the bottom of the blending reactor body 11; a round rod 31 is fixedly connected to the output end of the second motor 3; the round rod 31 is through-hole and rotatably connected to the blending reactor body 11; a spiral blade 32 is fixedly connected to the surface of the round rod 31; during operation, the multiple second motors 3 are started when the material is stirred. When the second motor 3 is started, it will drive the round rod 31 to rotate. At this time, the round rod 31 will drive the spiral blade 32 to rotate. When the spiral blade 32 rotates, it will transfer the material at the bottom to the top of the spiral blade 32, thereby turning it over; by adding the spiral blade 32, the material can be turned over multiple times, thereby increasing the rolling of the material inside the blending reactor body 11, thereby increasing the contact between the materials and thus accelerating the mixing of the materials.
[0028] As shown in the figures, a cutting blade 4 is fixedly attached to the bottom of the stirring rod 14; multiple cutting blades 4 are arranged on the stirring rod 14; during operation, when the material enters the body of the blending reactor 11, the solid material will move to the bottom of the body of the blending reactor 11. At this time, the rotation of the stirring rod 14 will drive the cutting blades 4 to rotate. When the cutting blades 4 come into contact with the material, they will quickly cut the material and separate it into small pieces; by adding cutting blades 4, the high-speed rotation of the cutting blades 4 can cut the material after it enters the body of the blending reactor 11, thereby accelerating the mixing with the material.
[0029] like Figure 1 As shown, a square plate 5 is rotatably connected to the inner wall of the feed inlet 12; the square plate 5 and the feed inlet 12 are connected by a torsion spring; during operation, when material is poured into the feed inlet 12, the material will push the square plate 5 away, causing the square plate 5 to move closer to the feed inlet 12, at which point the feed inlet 12 will open. After the material is poured in, the square plate 5 will return to its original position due to the force of the torsion spring, thereby closing the feed inlet 12; by adding the square plate 5, the feed inlet 12 can be closed, thereby reducing the amount of impurities entering the feed inlet 12 when it is not in use.
[0030] like Figure 1 As shown, the pressure relief assembly 18 includes a pressure relief valve 6; the pressure relief valve 6 and the blending reactor body 11 are connected; during operation, when it is necessary to remove the mixed material, the pressure relief valve 6 can be activated first to release the air pressure inside the blending reactor body 11, thereby reducing the air pressure, and then the material can be removed through the discharge port 17; by adding the pressure relief valve 6, the influence of air pressure on the material removal can be reduced.
[0031] Working Principle: Multiple materials are first poured into the mixing reactor body 11 through the feed inlet 12. Once the materials enter, the first motor 13 is started, causing it to drive the stirring rod 14 to rotate. The stirring rod 14 agitates the materials inside the mixing reactor body 11, mixing them. Simultaneously, the stirring rod 14 pushes the materials towards the baffle 15. When the materials contact the baffle 15, the force of the stirring rod 14 causes them to collide, generating turbulence and increasing the internal flow of the materials. This enhances the fluid turbulence, thereby increasing the mixing efficiency. The material is quickly stirred and mixed. When the material comes into contact with the baffle 15, it is guided by the guide plate 16 and drips into the mixing reactor body 11 to continue mixing. The mixing reactor body 11 needs to be heated during the mixing process. When the material needs to be removed, the pressure inside the mixing reactor body 11 can be reduced by the pressure relief component 18 to remove it. When the material comes into contact with the baffle 15, it will come into contact with the protrusion 2. At this time, it will move upward through the surface of the protrusion 2 and then upward through the end of the protrusion 2. After colliding with the baffle 15, it will move towards the guide plate 16 and collide with the guide plate 16 again. This increases material dispersion, and some material flows out through the circular hole 21, moving towards the upper guide plate 16 to contact it. After the collision, it falls along the guide plate 16. During material mixing, multiple second motors 3 are activated. When the second motors 3 are activated, they drive the circular rod 31 to rotate, which in turn drives the spiral blades 32 to rotate. As the spiral blades 32 rotate, they transfer the bottom material to the top of the spiral blades, causing them to tumble. After the material enters the mixing reactor body 11, the solid material moves to the mixing reactor body. At the bottom of body 11, the rotating stirring rod 14 drives the cutting blade 4 to rotate. When the cutting blade 4 comes into contact with the material, it will quickly chop the material into small pieces. When the material is poured in through the feed port 12, the material will push the square plate 5 open, causing the square plate 5 to move closer to the feed port 12. At this time, the feed port 12 will open. After the material is poured in, the square plate 5 will return to its original position due to the force of the torsion spring, thereby closing the feed port 12. When it is necessary to remove the mixed material, the pressure relief valve 6 can be activated first to release the air pressure inside the body 11 of the blending reactor, thereby reducing the air pressure, and then the material can be removed through the discharge port 17.
[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A modified blending reactor for PBT-modified polyester POY, comprising a support plate (1), characterized in that: The support plate (1) is fixedly connected to the middle of the blending reactor body (11); the blending reactor body (11) has a feed inlet (12) at the top; the blending reactor body (11) has a first motor (13) fixedly connected to the bottom; the output end of the first motor (13) has a stirring rod (14) fixedly connected; the stirring rod (14) is through and rotatably connected to the blending reactor body (11); the inner wall of the blending reactor body (11) has multiple baffles (15); the surface of the baffles (15) has multiple guide plates (16); the side wall of the blending reactor body (11) has a discharge port (17); the top of the blending reactor body (11) is provided with a pressure relief assembly (18).
2. The modified blending reactor for PBT-modified polyester POY according to claim 1, characterized in that: The baffle (15) has multiple protrusions (2) fixed in the middle; the guide plate (16) has multiple round holes (21) on its surface.
3. The modified blending reactor for PBT-modified polyester POY according to claim 2, characterized in that: Multiple second motors (3) are fixedly connected to the bottom of the blending reactor body (11); a round rod (31) is fixedly connected to the output end of the second motor (3); the round rod (31) is through-hole and rotatably connected to the blending reactor body (11); a spiral blade (32) is fixedly connected to the surface of the round rod (31).
4. The modified blending reactor for PBT-modified polyester POY according to claim 3, characterized in that: The bottom of the stirring rod (14) is fixed with a cutting blade (4); there are multiple cutting blades (4) on the stirring rod (14).
5. The modified blending reactor for PBT-modified polyester POY according to claim 4, characterized in that: The inner wall of the feed inlet (12) is rotatably connected to a square plate (5); the square plate (5) and the feed inlet (12) are connected by a torsion spring.
6. The modified blending reactor for PBT-modified polyester POY according to claim 5, characterized in that: The pressure relief assembly (18) includes a pressure relief valve (6); the pressure relief valve (6) and the blending reactor body (11) are connected.