A flexible material impurity removing machine

Abstract

The application discloses a flexible material impurity removing machine, and relates to the technical field of flexible material recycling, which comprises a feeding port, a discharging port, a separation chamber, a variable frequency motor and a transmission device, the separation chamber is erected on the ground by a support, and the separation chamber comprises an upper separation chamber and a lower separation chamber, the inner wall of the upper separation chamber is uniformly provided with a plurality of convex rib strips, and the lower separation chamber is embedded with a rod bar type screen; an impurity removing assembly is rotationally arranged in the separation chamber, one end of the impurity removing assembly is connected with the variable frequency motor through the transmission device, and the other end is communicated with external gas supply equipment through a pipeline and a rotary joint.

Description

Technical Field

[0001] This invention relates to the field of flexible material recycling technology, specifically a flexible material impurity removal machine. Background Technology

[0002] With economic and social development, the amount of solid waste generated has increased dramatically. Traditional sanitary landfill methods pollute the environment and waste resources. Currently, the country has put forward the requirements of "reduction, resource recovery, and harmlessness" for solid waste treatment, and solid waste resource utilization technology has received widespread attention. Organic matter in solid waste (such as waste plastic membranes, textiles, paper, and other flexible materials) can be used as alternative fuels or raw materials, but impurities such as dust, bricks, and stones attached to the surface need to be removed before utilization.

[0003] In the existing technology, the removal of impurities from flexible materials mainly adopts water washing technology or dry removal technology. Among them, the dry removal technology utilizes the difference in density and particle size between materials and impurities to achieve separation in a gravitational field or centrifugal field. Commonly used dry removal machines include air classifiers and dry removal machines, whose structures usually include a feed inlet, a discharge outlet, a separation chamber, and a removal mechanism. However, existing removal machines have the following problems: (1) The impurity content of the recycled products obtained after treatment is still relatively high, which affects the subsequent resource utilization; (2) The material adaptability is poor. When processing different types and properties of flexible materials, the removal effect is unstable, making it difficult to achieve multiple uses of one machine; (3) When wear occurs, slight eccentricity will occur due to weight imbalance, causing vibration and resulting in poor stability.

[0004] To address the above problems, this invention provides a flexible material removal machine to solve them. Summary of the Invention

[0005] To achieve the above objectives, the present invention provides the following technical solution: a flexible material impurity removal machine, comprising an inlet, an outlet, a separation chamber, a variable frequency motor and a transmission device, wherein the separation chamber is supported on the ground by a bracket, and the separation chamber comprises an upper separation chamber and a lower separation chamber, wherein the inner wall of the upper separation chamber is uniformly provided with a plurality of protruding ribs, and the lower separation chamber is embedded with a bar-type screen.

[0006] The separation chamber is equipped with a rotatable impurity removal component. One end of the impurity removal component is connected to the variable frequency motor via a transmission device, and the other end is connected to an external air supply device via a pipe and a rotary joint.

[0007] Further, preferably, the impurity removal component includes:

[0008] The main shaft is a hollow shaft that is rotatably mounted in the separation chamber. One end of the main shaft has an air inlet, which is connected to a rotary joint.

[0009] The feeding section is located on the main shaft and close to the feeding port;

[0010] The impurity removal section is located near the middle of the main shaft;

[0011] The discharge section is located near the discharge port of the main shaft;

[0012] The balancing components are configured as two, symmetrically fixed at both ends of the main shaft.

[0013] Furthermore, preferably, a spiral conveying blade is fixed on the feeding section, a plurality of kneading components are spirally arranged on the impurity removal section, and the spiral direction is the same as the conveying direction of the spiral conveying blade, and a plurality of rectangular blades are fixed on the circumference of the discharging section.

[0014] The kneading component is either a first kneading component or a second kneading component, and the number of first kneading components is greater than the number of second kneading components.

[0015] Furthermore, preferably, the first kneading component and the second kneading component have the same structure, both including:

[0016] The mounting base is a spherical structure and is mounted on the main shaft;

[0017] The kneading blade is hinged to the upper end of the mounting base, and a torsion spring is sleeved at the hinge position;

[0018] A rotating ring is rotatably mounted on the outer wall of the mounting base, and its outer wall is threaded with multiple set screws;

[0019] At least two locking plates are evenly fixed around the circumference of the rotating ring and are fixedly connected to the main shaft by bolts.

[0020] An adjusting plate is threadedly connected to the lower end of the mounting base, and a limit groove is provided at the corresponding position of the main shaft.

[0021] Furthermore, preferably, the second kneading assembly also includes multiple air inlets, which are fixed on the side of the kneading blades near the feed section. The kneading blades and the adjusting plate in the second kneading assembly are provided with clearance grooves, and a flexible hose is installed in the clearance groove. One end of the flexible hose is connected to the air inlet, and the other end is connected to the hollow position of the main shaft.

[0022] Furthermore, preferably, a plurality of shims are provided between the adjusting plate and the mounting base, and the relative angle between the mounting base and the adjusting plate after locking can be adjusted by increasing or decreasing the number of shims.

[0023] Further, preferably, the balancing component includes:

[0024] A balance ring is fixed at the end face of the main shaft;

[0025] A sealing plate is fixed to the side of the balance ring away from the spindle end face;

[0026] Multiple fluid inlets are configured and evenly distributed around the circumference of the sealing plate;

[0027] Four baffles are configured and evenly distributed around the circumference of the balance ring, forming four balance chambers between the baffles and the sealing plate and the balance ring.

[0028] An isolation plate is sealed and fixed inside the balance chamber, forming a stable chamber between the isolation plate and the balance ring.

[0029] Furthermore, preferably, the sealing plate has a narrow flow channel near the axis of the balance ring, and the four balance chambers are connected by the narrow flow channel.

[0030] Furthermore, preferably, both the balancing chamber and the stabilizing chamber are connected to one of the replenishment ports, and both the balancing chamber and the stabilizing chamber are filled with high-density liquid, with the stabilizing chamber being 100% filled and the balancing chamber being 50% filled.

[0031] Compared with the prior art, the present invention provides a flexible material impurity removal machine, which has the following beneficial effects:

[0032] 1. Reduce impurity content: By setting raised ribs on the inner wall of the upper separation chamber, the kneading and friction of the material is enhanced, allowing the clumps of flexible material to fully unfold and making it easier for attached impurities to detach. At the same time, a bar-type screen is used to improve the impurity throughput and avoid clogging, thereby significantly reducing the impurity content of the recycled product. In addition, during the impurity removal process, the material is pushed and kneaded by the first kneading component and pushed and kneaded by the second kneading component. Air is blown during the push-back process to further improve the impurity throughput.

[0033] 2. Improved material adaptability: The main shaft is driven by a variable frequency motor, which can adjust the speed according to the characteristics of different materials, thereby changing the kneading frequency. The kneading assembly adopts a bolt-removable design, and different blade structures can be replaced according to the type of material, realizing multi-purpose use and adapting to the impurity removal needs of various flexible materials. In addition, the torsion spring can deflect and avoid the kneading blades to prevent damage from hard impurities. Furthermore, the deflection and oscillation of the kneading blades can also perform micro-kneading, further improving the adaptability to different types of flexible materials.

[0034] 3. Prevent material blockage and ensure smooth material discharge: A spiral conveyor blade is installed at the inlet to force feeding and avoid material blockage. A rectangular blade is installed at the outlet to ensure that the material is discharged smoothly after impurity removal.

[0035] 4. Automatic dynamic balance compensation of the main shaft: After long-term operation, uneven wear or replacement of blades may cause the dynamic balance of the main shaft to be disrupted, resulting in vibration. Dynamic balance components are set at both ends of the main shaft. When the main shaft rotates, the high-density liquid automatically migrates to the opposite direction of the imbalance under the action of centrifugal force, realizing real-time automatic balance, reducing vibration and noise, and extending the life of bearings and the whole machine. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0037] Figure 2 This is a schematic diagram of the internal structure of the separation chamber of the present invention;

[0038] Figure 3 This is a schematic diagram of the planar structure of the impurity removal component of the present invention;

[0039] Figure 4 This is a three-dimensional structural diagram of the impurity removal component of the present invention;

[0040] Figure 5 This is a schematic diagram of the structure of the second kneading component of the present invention;

[0041] Figure 6 This is a schematic diagram of the internal structure of the balancing component of the present invention;

[0042] Figure 7 This is a schematic diagram of the main shaft unfolded state of the present invention;

[0043] In the diagram: 1. Feed inlet; 2. Discharge outlet; 3. Upper separation chamber; 31. Rib; 4. Lower separation chamber; 5. Bar screen; 6. Impurity removal assembly; 7. Variable frequency motor; 8. Transmission device; 9. Support; 61. Feed section; 62. Impurity removal section; 63. Discharge section; 64. Spiral conveyor blade; 65. First kneading assembly; 66. Second kneading assembly; 67. Rectangular blade; 68. Main shaft; 69. Balancing assembly; 661. Mounting base; 662. Kneading blade; 663. Rotating ring; 664. Locking plate; 665. Top screw; 666. Adjusting plate; 667. Air blowing port; 681. Air inlet; 691. Liquid replenishment port; 692. Sealing plate; 693. Balancing ring; 694. Baffle; 695. Balancing chamber; 696. Isolation plate; 697. Stabilizing chamber; 698. Narrow flow channel. Detailed Implementation

[0044] Reference Figures 1-7The present invention provides a technical solution: a flexible material impurity removal machine, including an inlet 1, an outlet 2, a separation chamber, a variable frequency motor 7 and a transmission device 8. The separation chamber is supported on the ground by a bracket 9, and the separation chamber includes an upper separation chamber 3 and a lower separation chamber 4. The inner wall of the upper separation chamber 3 is evenly provided with a plurality of protruding ribs 31, and the lower separation chamber 4 is embedded with a bar-type screen 5.

[0045] The separation chamber is equipped with a rotatable impurity removal component 6. One end of the impurity removal component 6 is connected to the variable frequency motor 7 via a transmission device 8, and the other end is connected to an external air supply device via a pipe and a rotary joint.

[0046] In this embodiment, the impurity removal component 6 includes:

[0047] The main shaft 68 is a hollow shaft that is rotatably mounted in the separation chamber. One end of the main shaft is provided with an air inlet 681, which is connected to a rotary joint.

[0048] The feeding section 61 is located on the main shaft 68 and is close to the feeding port 1;

[0049] The impurity removal section 62 is located near the middle of the main shaft 68;

[0050] The discharge section 63 is located on the main shaft 68 near the discharge port 2;

[0051] Two balancing components 69 are configured and symmetrically fixed at both ends of the main shaft 68.

[0052] The three-section structure achieves physical partitioning of feeding, kneading and impurity removal, and discharge functions without interference. The hollow main shaft 68 serves as an airflow channel, leading external air sources to the impurity removal section 62. The symmetrical balancing components 69 at both ends compensate for the imbalance caused by blade wear in real time and suppress vibration.

[0053] Preferably, a spiral conveying blade 64 is fixed on the feeding section 61, a plurality of kneading components are spirally arranged on the impurity removal section 62, and the spiral direction is the same as the conveying direction of the spiral conveying blade 64. A plurality of rectangular blades 67 are fixed around the circumference of the discharging section 63.

[0054] The kneading component is either a first kneading component 65 or a second kneading component 66, and the number of first kneading components 65 is greater than the number of second kneading components 66.

[0055] In other words, the spiral conveyor blades 64 forcefully push the material into the chamber to prevent material blockage at the inlet 1, as the number of the first kneading components 65 is dominant (e.g., Figure 7As described above, the material is conveyed as a whole towards the discharge port 2. The second kneading component 66 generates a local counter-pushing force, which together with the first kneading component 65 forms a micro-circulation kneading zone with more material entering and less material exiting, thereby enhancing the impurity removal effect. The rectangular blade 67 generates a stable pushing force at the discharge end to ensure smooth material discharge.

[0056] In a preferred embodiment, the first kneading component 65 and the second kneading component 66 have the same structure, both including:

[0057] Mounting base 661 is a spherical structure and is mounted on the main shaft 68;

[0058] The rubbing blade 662 is hinged to the upper end of the mounting base 661, and a torsion spring is sleeved at the hinge position.

[0059] A rotating ring 663 is rotatably disposed on the outer wall of the mounting base 661, and its outer wall is threaded with a plurality of set screws 665;

[0060] At least two locking plates 664 are circumferentially fixed to the rotating ring 663 and are fixedly connected to the main shaft 68 by bolts.

[0061] The adjusting plate 666 is threaded to the lower end of the mounting base 661, and the main shaft 68 has a limit groove at its corresponding position.

[0062] When encountering hard impurities, the kneading blade 662 can overcome the deflection of the torsion spring and avoid it, protecting the kneading blade 662 from being damaged. After the hard object passes through, it quickly rebounds, generating a high-frequency whipping effect to shake off the attached impurities.

[0063] In addition, the second kneading assembly 66 also includes multiple air inlets 667, which are fixed on the side of the kneading blade 662 near the feed section 61. Both the kneading blade 662 and the adjusting plate 666 in the second kneading assembly 66 are provided with clearance grooves. A flexible hose is installed in the clearance groove. One end of the flexible hose is connected to the air inlet 667, and the other end is connected to the hollow position of the main shaft 68.

[0064] Preferably, while the material is being reversed and repeatedly tumbled and kneaded, a high-pressure airflow is ejected from the air outlet 667 on one side of the kneading blade 662, blowing off the dust and sand on the surface of the material and accelerating the separation of impurities.

[0065] Multiple gaskets are provided between the adjusting plate 666 and the mounting base 661. The relative angle between the mounting base 661 and the adjusting plate 666 after locking can be adjusted by increasing or decreasing the number of gaskets. The rotation angles of the first kneading component 65 and the second kneading component 66 are different.

[0066] It should be noted that the rotating ring 663, in conjunction with the set screw 665 and the locking plate 664, can adjust the installation angle of the kneading blade 662 on the main shaft 68. During installation, the set screw 665 is not tightened, and the rotating ring 663 can rotate. After the installation angle is determined (by adjusting the relative angle between the mounting base 661 and the adjusting plate 666 after locking by increasing or decreasing the number of shims), the rotating ring 663 rotates, so that the locking plate 664 corresponds to the threaded hole on the main shaft 68, thereby locking and fixing it. Then, the set screw 665 is tightened to make it rigid, and the installation is completed.

[0067] In other words, when processing different types of flexible materials, the kneading blades 662 of different shapes, thicknesses or angles can be easily replaced to achieve the best striking and kneading effect.

[0068] In a preferred embodiment, the balancing component 69 includes:

[0069] The balance ring 693 is fixed at the end face of the main shaft 68;

[0070] The sealing plate 692 is fixed on the side of the balance ring 693 away from the end face of the main shaft 68;

[0071] Multiple liquid inlets 691 are configured and evenly distributed around the circumference of the sealing plate 692;

[0072] Four baffles 694 are configured and evenly distributed around the circumference of the balance ring 693, forming four balance chambers 695 between the baffles 692 and the balance ring 693.

[0073] The isolation plate 696 is sealed and fixed inside the balance chamber 695, and forms a stable chamber 697 between the isolation plate 692 and the balance ring 693.

[0074] Among them, four baffles 694 divide the annular cavity into four independent balance chambers 695, forcing the liquid to rotate with the main shaft 68, fundamentally solving the problem of liquid settling and accumulating at the bottom due to gravity under horizontal shaft conditions. The isolation plate 696 further divides each balance chamber 695, ensuring that the main shaft 68 can maintain its basic balance capability after being placed for a long time.

[0075] In addition, a narrow flow channel 698 is provided on the sealing plate 692 near the axis of the balance ring 693, and the four balance chambers 695 are connected by the narrow flow channel 698.

[0076] In other words, during stable operation, the flow resistance of the narrow flow channel 698 acts as a hydraulic lock, and the liquid does not flow between the balance chambers 695. When the main shaft 68 vibrates due to imbalance, the liquid pressure in the balance chamber 695 in the direction of vibration increases, and the liquid is transferred to the opposite direction with lower pressure (the opposite direction of imbalance) through the narrow flow channel 698, thus achieving real-time automatic compensation.

[0077] Preferably, both the balancing chamber 695 and the stabilizing chamber 697 are connected to a liquid replenishment port 691, and both the balancing chamber 695 and the stabilizing chamber 697 are filled with high-density liquid, with the stabilizing chamber 697 being 100% filled and the balancing chamber 695 being 50% filled.

[0078] The stabilizing chamber 697, when fully filled, provides basic mass and damping, while the balancing chamber 695, 50% filled, provides space for flow and compensation. Together, they ensure effective balancing capabilities throughout the entire speed range and wear cycle.

[0079] In practice, the variable frequency motor 7 is started, and the main shaft 68 is driven to rotate through the transmission device 8. The material enters the separation chamber from the feed port 1. The spiral conveyor blades 64 of the feed section 61 quickly push the material into the impurity removal section 62. In the impurity removal section 62, the kneading component rotates at high speed to break up and knead the material. At the same time, strong friction occurs between the materials and between the materials and the ribs 31 of the inner wall of the upper separation chamber 3, which fully unfolds the clumps of flexible material and removes impurities such as dust, bricks and stones attached to its surface. Due to the higher specific gravity of the impurities, they are thrown downward and settled under the action of centrifugal force and gravity, and discharged from the machine through the bar screen 5 in the lower separation chamber 4. The lighter flexible material continues to move forward under the pushing action of the kneading blades 662 and is finally discharged from the discharge port 2, thereby achieving effective separation of impurities and flexible materials.

[0080] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A flexible material impurity removal machine, comprising an inlet (1), an outlet (2), a separation chamber, a variable frequency motor (7), and a transmission device (8), characterized in that: The separation chamber is supported on the ground by a bracket (9), and the separation chamber includes an upper separation chamber (3) and a lower separation chamber (4). The inner wall of the upper separation chamber (3) is uniformly provided with a plurality of protruding ribs (31), and the lower separation chamber (4) is embedded with a rod-type screen (5). The separation chamber is equipped with a rotatable impurity removal component (6). One end of the impurity removal component (6) is connected to the variable frequency motor (7) via a transmission device (8), and the other end is connected to an external air supply device via a pipe and a rotary joint.

2. The flexible material removal machine according to claim 1, characterized in that, The impurity removal component (6) includes: The main shaft (68) is a hollow shaft that is rotatably disposed in the separation chamber. One end of the shaft is provided with an air inlet (681), which is connected to a rotary joint. The feeding section (61) is set on the main shaft (68) and close to the feeding port (1). The impurity removal section (62) is located near the middle of the main shaft (68); The discharge section (63) is located on the main shaft (68) near the discharge port (2); The balancing components (69) are configured as two, symmetrically fixed at both ends of the main shaft (68).

3. The flexible material removal machine according to claim 2, characterized in that, The feeding section (61) is fixed with a spiral conveying blade (64), the impurity removal section (62) is spirally arranged with multiple kneading components, and the spiral direction is the same as the conveying direction of the spiral conveying blade (64). The discharge section (63) is fixed with multiple rectangular blades (67) around its circumference. The kneading component is either a first kneading component (65) or a second kneading component (66), and the number of the first kneading components (65) is greater than the number of the second kneading components (66).

4. A flexible material impurity removal machine according to claim 3, characterized in that, The first kneading component (65) and the second kneading component (66) have the same structure, both including: The mounting base (661) is a spherical structure and is mounted on the main shaft (68); The rubbing blade (662) is hinged to the upper end of the mounting base (661), and a torsion spring is sleeved at the hinge position; A rotating ring (663) is rotatably disposed on the outer wall of the mounting base (661), and its outer wall is threaded with a plurality of set screws (665). Locking plates (664), at least two, are circumferentially fixed on the rotating ring (663) and fixedly connected to the main shaft (68) by bolts; The adjusting plate (666) is threaded to the lower end of the mounting base (661), and the main shaft (68) has a limit groove at its corresponding position.

5. A flexible material impurity removal machine according to claim 4, characterized in that, The second kneading assembly (66) also includes multiple air inlets (667), which are fixed on the side of the kneading blade (662) near the feed section. The kneading blade (662) and the adjusting plate (666) in the second kneading assembly (66) are provided with clearance grooves. A flexible hose is installed in the clearance groove. One end of the flexible hose is connected to the air inlet (667), and the other end is connected to the hollow position of the main shaft (68).

6. A flexible material impurity removal machine according to claim 4, characterized in that, Multiple gaskets are provided between the adjusting plate (666) and the mounting base (661). The relative angle between the mounting base (661) and the adjusting plate (666) after locking can be adjusted by increasing or decreasing the number of gaskets. The rotation angles of the first kneading component (65) and the second kneading component (66) are different.

7. A flexible material impurity removal machine according to claim 2, characterized in that, The balancing component (69) includes: A balance ring (693) is fixed at the end face of the main shaft (68); A sealing plate (692) is fixed to the side of the balance ring (693) away from the end face of the main shaft (68); Multiple fluid inlets (691) are configured and evenly distributed around the circumference of the sealing plate (692); Four baffles (694) are configured and evenly distributed around the circumference of the balance ring (693), forming four balance chambers (695) between the baffles (692) and the balance ring (693). The isolation plate (696) is sealed and fixed inside the balance chamber (695), and forms a stable chamber (697) between the sealing plate (692) and the balance ring (693).

8. A flexible material impurity removal machine according to claim 7, characterized in that, The sealing plate (692) has a narrow flow channel (698) near the axis of the balance ring (693), and the four balance chambers (695) are connected by the narrow flow channel (698).

9. A flexible material impurity removal machine according to claim 7, characterized in that, The balancing chamber (695) and the stabilizing chamber (697) are both connected to a replenishment port (691), and the balancing chamber (695) and the stabilizing chamber (697) are filled with high-density liquid, with the stabilizing chamber (697) filled to 100% and the balancing chamber (695) filled to 50%.

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