Continuous impregnation equipment for PP granules
By working together with the mixing mechanism and conveying components, the problems of eddies and dead corners in PP granule impregnation equipment are solved, achieving uniform impregnation of PP granules and improving the stability and consistency of product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI ZHONGLIPU NEW MATERIALS TECHNOLOGY CO LTD
- Filing Date
- 2025-07-16
- Publication Date
- 2026-07-03
AI Technical Summary
Traditional PP granule impregnation equipment has eddies and dead zones, resulting in uneven granule impregnation and affecting the stability and consistency of product quality.
The mixing mechanism and conveying components work together. The first motor drives the first rotating rod to drive the mixing and conveying components, so as to achieve full contact and uniform mixing of PP granules and impregnation liquid, avoiding eddies and dead zones.
This ensures uniform impregnation of PP granules, improves the stability and consistency of product performance, and solves the problem of uneven impregnation that exists in traditional equipment.
Smart Images

Figure CN224446466U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of polypropylene granule processing equipment, specifically to a continuous impregnation equipment for PP granules. Background Technology
[0002] PP granules, also known as polypropylene granules, are granular forms of polypropylene resin after processing. They are one of the commonly used raw materials in the plastics industry. The production process mainly includes raw material pretreatment, melt extrusion, pelletizing, drying, and post-treatment. Among these, in order to enhance mechanical strength, improve corrosion resistance, and add functions such as flame retardancy or antistatic properties, PP granules need to be impregnated.
[0003] In the impregnation process of PP granules, the existing technology generally involves placing the PP granules in the impregnation equipment and relying on the internal stirring mechanism to mix the granules with the impregnation liquid. However, traditional mechanical stirring is prone to generating eddies and dead zones, which cannot allow the PP granules to be fully and evenly dispersed in the impregnation liquid. This results in uneven impregnation of the PP granules, leading to differences in the performance of the final product and making it impossible to guarantee the stability and consistency of product quality. Therefore, we need to propose a continuous impregnation equipment for PP granules. Utility Model Content
[0004] The purpose of this invention is to provide a continuous impregnation device for PP granules. Through the setting of the stirring mechanism, the first motor drives the first rotating rod to rotate, which drives the stirring component and the conveying component to work together. The stirring component can fully disperse the agglomerated PP granules, so that the PP granules can fully contact the impregnation liquid. The conveying component can transport and turn the material at the bottom of the impregnation tank upward, further ensuring the uniformity and consistency of granule impregnation, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A continuous impregnation device for PP granules includes: a support frame; an impregnation tank rotatably mounted inside the support frame; and a stirring mechanism for uniformly impregnating PP granules, wherein the stirring mechanism is disposed inside the impregnation tank; the stirring mechanism includes a first motor, a first rotating rod, a stirring assembly, and a conveying assembly; the first motor is fixedly mounted on the top of the impregnation tank, the first rotating rod is rotatably mounted inside the impregnation tank, and the top end of the first rotating rod penetrates the impregnation tank and is fixedly connected to the output end of the first motor; the stirring assembly and the conveying assembly are both mounted on the outside of the first rotating rod.
[0007] Preferably, the conveying assembly includes a spiral blade, a fixed cylinder, and multiple sets of through grooves; the spiral blade is fixedly installed on the outside of the first rotating rod, the fixed cylinder is fixedly installed on the inner bottom of the impregnation tank, and the bottom end of the fixed cylinder has multiple sets of through grooves.
[0008] Preferably, the spiral blades are located inside the fixed cylinder, and the multiple sets of through slots are arranged in a ring array.
[0009] Preferably, the stirring assembly includes a fixed ring, three sets of connecting rods, and multiple sets of stirring rods. The fixed ring is fixedly installed on the outside of the first rotating rod, the three sets of connecting rods are all fixedly installed on the outside of the fixed ring, and multiple sets of stirring rods are fixedly installed on the outside of the three sets of connecting rods respectively.
[0010] Preferably, it also includes a support base and a rotating mechanism for rotating the impregnation tank, wherein the support base is fixedly installed on one side of the bracket and the rotating mechanism is located on the outside of the impregnation tank.
[0011] Preferably, the rotating mechanism includes a connecting ring, two sets of rotating rods, a first gear, a second gear, a second rotating rod, and a second motor;
[0012] The connecting ring is fixedly installed on the outside of the impregnation tank, and two sets of rotating rods are symmetrically fixedly installed on the outside of the connecting ring. Both sets of rotating rods are rotatably installed inside the bracket. One end of one set of rotating rods passes through the bracket and is fixedly installed with a first gear. A second gear that meshes with the first gear is fixedly installed on the outside of the second rotating rod. One end of the second rotating rod is rotatably installed on one side of the bracket, and the other end is fixedly connected to the output end of the second motor. The second motor is fixedly installed on the top of the support base.
[0013] Preferably, the top of the support base has a through slot for the rotation of the first gear and the second gear.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] This invention achieves efficient and uniform impregnation of PP granules through the design of a stirring mechanism. A first motor drives a first rotating rod to rotate stably, causing the stirring component and the conveying component to work together. The stirring component can quickly break up agglomerated granules, increasing the contact area between the PP granules and the impregnation liquid, and promoting full contact and mixing between the PP granules and the impregnation liquid. At the same time, the conveying component continuously flips and conveys the PP granules that are prone to sedimentation at the bottom of the impregnation tank, promoting the dynamic flow of PP granules in an up-and-down circulation, effectively solving the problems of eddies and dead zones in traditional stirring. The coordinated operation of the stirring component and the conveying component ensures that the PP granules can be fully and uniformly impregnated, guaranteeing the uniformity and consistency of the PP granule impregnation, thereby effectively improving the stability of product performance. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this utility model;
[0017] Figure 2 This is a cross-sectional schematic diagram of the impregnation tank of this utility model;
[0018] Figure 3 This is a schematic diagram of the stirring mechanism of this utility model;
[0019] Figure 4 This is a schematic diagram of the rotating mechanism of this utility model.
[0020] In the diagram: 1. Support; 2. Impregnation tank; 3. Stirring mechanism; 31. First motor; 32. First rotating rod; 33. Stirring assembly; 331. Fixing ring; 332. Connecting rod; 333. Stirring rod; 34. Conveying assembly; 341. Spiral blade; 342. Fixing cylinder; 343. Through groove; 4. Support base; 5. Rotating mechanism; 51. Connecting ring; 52. Rotating rod; 53. First gear; 54. Second gear; 55. Second rotating rod; 56. Second motor; 6. Through groove. Detailed Implementation
[0021] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] Please see Figure 1-4 This utility model provides a technical solution:
[0023] A continuous impregnation device for PP granules includes: a support frame 1; an impregnation tank 2 rotatably mounted inside the support frame 1; and a stirring mechanism 3 for uniformly impregnating PP granules, wherein the stirring mechanism 3 is disposed inside the impregnation tank 2. The stirring mechanism 3 includes a first motor 31, a first rotating rod 32, a stirring assembly 33, and a conveying assembly 34. The first motor 31 is fixedly mounted on the top of the impregnation tank 2, the first rotating rod 32 is rotatably mounted inside the impregnation tank 2, and the top end of the first rotating rod 32 penetrates the impregnation tank 2 and is fixedly connected to the output end of the first motor 31. The stirring assembly 33 and the conveying assembly 34 are both mounted on the outside of the first rotating rod 32.
[0024] The support frame, consisting of bracket 1, impregnation tank 2, and stirring mechanism 3, provides a stable installation foundation for the entire equipment. Impregnation tank 2 and stirring mechanism 3 are used to achieve uniform impregnation of PP granules. The stirring mechanism 3 mainly consists of a first motor 31, a first rotating rod 32, a stirring assembly 33, and a conveying assembly 34. The first motor 31, as the power source, can be a Siemens 1LE0001 series, providing stable and powerful power output to the stirring mechanism 3. The first rotating rod 32 is rotatably installed inside the impregnation tank 2, with its top end penetrating the tank 2 and tightly fixedly connected to the output end of the first motor 31, ensuring the stability of the first motor 31. The power can be efficiently transmitted to the stirring component 33 and the conveying component 34. The stirring component 33 can quickly break up agglomerated granules, increase the contact area between PP granules and impregnation liquid, and promote full contact and mixing between PP granules and impregnation liquid. At the same time, the conveying component 34 continuously flips and conveys the PP granules that are easy to settle at the bottom of the impregnation tank 2, and promotes the dynamic flow of PP granules in an up-and-down circulation, effectively solving the eddies and dead corners of traditional stirring. The synergistic cooperation between the stirring component 33 and the conveying component 34 ensures that the PP granules can be fully and uniformly impregnated, ensuring the uniformity and consistency of PP granule impregnation, thereby effectively improving the stability of product performance.
[0025] Specifically, the conveying assembly 34 includes a spiral blade 341, a fixed cylinder 342, and multiple sets of through grooves 343; the spiral blade 341 is fixedly installed on the outside of the first rotating rod 32, the fixed cylinder 342 is fixedly installed on the inner bottom of the impregnation tank 2, and the bottom end of the fixed cylinder 342 has multiple sets of through grooves 343.
[0026] With the arrangement of the spiral blades 341, the fixed cylinder 342, and multiple sets of through grooves 343, the spiral structure of the spiral blades 341 can generate an upward conveying force when the first rotating rod 32 rotates. The fixed cylinder 342 provides a relatively enclosed working space for the spiral blades 341 and guides the flow of materials. The bottom end of the fixed cylinder 342 is provided with multiple sets of through grooves 343, which are channels for materials to enter and exit the fixed cylinder 342. Therefore, the spiral blades 341 rotate inside the fixed cylinder 342 under the drive of the first rotating rod 32, and use the spiral lift to convey the material deposited at the bottom of the impregnation tank 2 upward through the through grooves 343 distributed in a ring at the bottom end of the fixed cylinder 342. This helps the PP granules to circulate in the impregnation tank 2 and ensures that the PP granules can be impregnated evenly.
[0027] Among them, the spiral blade 341 is located inside the fixed cylinder 342, and multiple sets of through slots 343 are arranged in a ring array.
[0028] The spiral blades 341 are installed inside the fixed cylinder 342, and the two work together to form an efficient material conveying channel. Multiple sets of through slots 343 are arranged in a ring array, which can ensure that PP granules enter evenly at the bottom of the fixed cylinder 342, avoiding local accumulation or blockage, and ensuring stable and continuous circulation conveying of PP granules.
[0029] In a further preferred embodiment, the stirring assembly 33 includes a fixing ring 331, three sets of connecting rods 332 and multiple sets of stirring rods 333. The fixing ring 331 is fixedly installed on the outside of the first rotating rod 32, and the three sets of connecting rods 332 are all fixedly installed on the outside of the fixing ring 331. Multiple sets of stirring rods 333 are respectively fixedly installed on the outside of the three sets of connecting rods 332.
[0030] With the setting of a fixed ring 331, three sets of connecting rods 332 and multiple sets of stirring rods 333, the fixed ring 331, as the core connecting component, ensures the structural strength and operational stability of the entire stirring assembly 33 through its stable connection with the first rotating rod 32. The three sets of connecting rods 332 are symmetrically distributed in a ring array, forming a stable stirring zone. The multiple sets of stirring rods 333 set on each set of connecting rods 332 can form a three-dimensional stirring zone during rotation, which can effectively break the agglomeration of PP granules and promote the full contact and mixing of PP granules and impregnation liquid.
[0031] Specifically, it also includes a support base 4 and a rotating mechanism 5 for rotating the impregnation tank 2. The support base 4 is fixedly installed on one side of the bracket 1, and the rotating mechanism 5 is located on the outside of the impregnation tank 2.
[0032] With the support base 4 and the rotating mechanism 5, the support base 4 provides a stable installation foundation for the rotating mechanism 5, which enhances the stability of the overall structure of the equipment. The rotating mechanism 5 is located on the outside of the impregnation tank 2 and can drive the impregnation tank 2 to rotate, so that the impregnation tank 2 is in an inclined state, which facilitates rapid material discharge.
[0033] The rotating mechanism 5 includes a connecting ring 51, two sets of rotating rods 52, a first gear 53, a second gear 54, a second rotating rod 55, and a second motor 56. The connecting ring 51 is fixedly installed on the outside of the impregnation tank 2, and two sets of rotating rods 52 are symmetrically fixedly installed on the outside of the connecting ring 51. Both sets of rotating rods 52 are rotatably installed inside the bracket 1. One end of one set of rotating rods 52 passes through the bracket 1 and is fixedly installed with the first gear 53. The outside of the second rotating rod 55 is fixedly installed with the second gear 54 that meshes with the first gear 53. One end of the second rotating rod 55 is rotatably installed on one side of the bracket 1, and the other end is fixedly connected to the output end of the second motor 56. The second motor 56 is fixedly installed on the top of the support base 4.
[0034] Through the configuration of connecting ring 51, two sets of rotating rods 52, first gear 53, second gear 54, second rotating rod 55, and second motor 56, the second motor 56 can be a SEW KA series helical gear reducer motor. The second motor 56 drives the second rotating rod 55, which in turn drives the meshing second gear 54 and first gear 53 to rotate. This causes the rotating rod 52 to drive the impregnation tank 2 to tilt and rotate around its axis. It should be noted that this rotation is not a continuous rotation for mixing, but is used to complete the material discharge process after impregnation. When discharge is required, the impregnation tank 2 tilts and rotates to a predetermined angle towards the discharge pipe under the drive of the rotating mechanism 5. The discharge pipe is not located at the center of the impregnation tank 2, but near the edge of the impregnation tank 2. When the impregnation tank 2 rotates and tilts to the predetermined angle, the material inside the tank flows out naturally under the action of gravity, avoiding the accumulation of material at the bottom of the impregnation tank 2, thereby achieving rapid discharge. The two sets of symmetrical rotating rods 52 can ensure that the impregnation tank 2 remains stable during the tilting and rotation process, avoiding vibration or displacement.
[0035] Specifically, the top of the support base 4 is provided with a through groove 6 for the rotation of the first gear 53 and the second gear 54.
[0036] By providing the through slot 6, sufficient space is provided for the rotation of the first gear 53 and the second gear 54, thus avoiding interference between the first gear 53 and the second gear 54 and the support base 4 during rotation.
[0037] Working principle: When using this utility model, the impregnation liquid and PP granules are injected from the feed pipe at the top of the impregnation tank 2. Then, the first motor 31 is started. The first motor 31 drives the first rotating rod 32 to rotate, which drives the stirring assembly 33 and the conveying assembly 34 to rotate synchronously. The fixed ring 331 in the stirring assembly 33 rotates with the first rotating rod 32. The three sets of connecting rods 332 drive multiple sets of stirring rods 333 to rotate and stir synchronously, thereby quickly breaking up the agglomerated PP granules and increasing the contact area with the impregnation liquid.
[0038] The spiral blades 341 in the conveying assembly 34 rotate inside the fixed cylinder 342 under the drive of the first rotating rod 32. The spiral lift force is used to convey the material deposited at the bottom of the impregnation tank 2 upward through the through channels 343 distributed in a ring array at the bottom of the fixed cylinder 342, which promotes the material to form a dynamic flow pattern of up and down circulation in the tank. The stirring assembly 33 and the conveying assembly 34 work together to achieve full and uniform mixing of PP granules and impregnation liquid, and complete an efficient and continuous impregnation operation process.
[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A continuous impregnation plant of PP granules, characterized by the fact that, include: Support (1); The impregnation tank (2) is rotatably mounted inside the bracket (1); A stirring mechanism (3) is used to achieve uniform impregnation of PP granules, and the stirring mechanism (3) is located inside the impregnation tank (2); The stirring mechanism (3) includes a first motor (31), a first rotating rod (32), a stirring assembly (33), and a conveying assembly (34); the first motor (31) is fixedly installed on the top of the impregnation tank (2), the first rotating rod (32) is rotatably installed inside the impregnation tank (2), and the top end of the first rotating rod (32) penetrates through the impregnation tank (2) and is fixedly connected to the output end of the first motor (31). The stirring assembly (33) and the conveying assembly (34) are both installed on the outside of the first rotating rod (32).
2. The continuous PP pellets impregnation apparatus according to claim 1, characterized in that: The conveying assembly (34) includes a spiral blade (341), a fixed cylinder (342), and multiple sets of through grooves (343); the spiral blade (341) is fixedly installed on the outside of the first rotating rod (32), the fixed cylinder (342) is fixedly installed on the inner bottom of the impregnation tank (2), and the bottom end of the fixed cylinder (342) has multiple sets of through grooves (343).
3. The continuous PP pellets impregnation apparatus according to claim 2, characterized in that: The spiral blade (341) is located inside the fixed cylinder (342), and the multiple sets of through slots (343) are arranged in a ring array.
4. The continuous PP pellets impregnation apparatus according to claim 1, characterized in that: The stirring assembly (33) includes a fixing ring (331), three sets of connecting rods (332) and multiple sets of stirring rods (333). The fixing ring (331) is fixedly installed on the outside of the first rotating rod (32). All three sets of connecting rods (332) are fixedly installed on the outside of the fixing ring (331), and multiple sets of stirring rods (333) are fixedly installed on the outside of the three sets of connecting rods (332).
5. The continuous impregnation equipment for PP granules according to claim 1, characterized in that: It also includes a support base (4) and a rotating mechanism (5) for rotating the impregnation tank (2). The support base (4) is fixedly installed on one side of the bracket (1), and the rotating mechanism (5) is located on the outside of the impregnation tank (2).
6. The continuous PP pellets impregnation apparatus according to claim 5, characterized in that: The rotating mechanism (5) includes a connecting ring (51), two sets of rotating rods (52), a first gear (53), a second gear (54), a second rotating rod (55), and a second motor (56); The connecting ring (51) is fixedly installed on the outside of the impregnation tank (2), and two sets of rotating rods (52) are symmetrically fixedly installed on the outside of the connecting ring (51). Both sets of rotating rods (52) are rotatably installed inside the bracket (1), and one end of one set of rotating rods (52) passes through the bracket (1) and is fixedly installed with a first gear (53). The outside of the second rotating rod (55) is fixedly installed with a second gear (54) that meshes with the first gear (53). One end of the second rotating rod (55) is rotatably installed on one side of the bracket (1), and the other end is fixedly connected to the output end of the second motor (56). The second motor (56) is fixedly installed on the top of the support base (4).
7. The continuous PP pellets impregnation apparatus according to claim 6, characterized in that: The top of the support base (4) is provided with a through groove (6) for the rotation of the first gear (53) and the second gear (54).