Waste chemical fiber friction granulation device and method

Abstract

The invention relates to a waste chemical fiber friction granulation device and method, and relates to the technical field of chemical fiber granulation, the waste chemical fiber friction granulation device comprises a base, a power structure is installed in the base, a shell structure is installed on the base, a cooling structure is installed in the shell structure, a discharging structure is installed at the bottom of the shell structure, and friction rods distributed in a circumferential array mode are installed on the discharging structure; a cutting structure is rotationally connected into the discharging structure, a gas pump is installed in the base, the gas pump communicates with a gas conveying pipe, and the gas conveying pipe communicates with the shell structure. According to the waste chemical fiber friction granulation device and method, waste chemical fibers are cut through the cutting blade to become powdery chemical fibers, then the powdery chemical fibers are bonded into particles of different sizes through friction temperature rising, the large-particle chemical fibers are stirred upwards through the stirring block, cut again through the cutting blade and then pass through gaps of the friction rods, and the particles are formed. Discharging is carried out through a communicating hole, and the friction heating efficiency of the chemical fibers is improved through a friction rod.

Description

Technical Field

[0001] This invention relates to the field of chemical fiber granulation technology, specifically to a device and method for friction granulation of waste chemical fibers. Background Technology

[0002] Chemical fiber is a commonly used synthetic fiber, but it is different from ordinary fibers, such as cotton, silk, or flax. It is a biodegradable fiber in nature, but the degradation of chemical fiber in nature is relatively long. Directly discarding or burning it not only wastes resources but also causes serious environmental pollution problems. Therefore, it is necessary to recycle and reuse chemical fibers.

[0003] In existing waste chemical fiber friction granulation devices, after the waste chemical fibers are cut, they are heated by friction to semi-plasticize them, making them sticky and causing them to stick together to form granules. Then, water is sprayed to lower the temperature of the chemical fiber granules and eliminate the stickiness. However, common water spraying equipment directly sprays water onto the chemical fiber granules on the chassis, which can easily cool down some of the cut chemical fiber powder before it is discharged, resulting in a decrease in the utilization rate of powdered chemical fibers. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide a device and method for friction granulation of waste chemical fibers to solve the problems of the prior art.

[0005] This invention is achieved through the following technical solution:

[0006] A waste chemical fiber friction granulation device includes a base, a power structure installed inside the base, a shell structure installed on the base, a cooling structure installed inside the shell structure, a discharge structure installed at the bottom of the shell structure, friction rods arranged in a circumferential array installed on the discharge structure, a cutting structure rotatably connected inside the discharge structure, a gas pump installed inside the base, a gas supply pipe connected to the gas pump, and the gas supply pipe connected to the shell structure.

[0007] The housing structure includes a protective outer shell mounted on a base, an inner protective shell installed inside the protective outer shell, and a feed hopper installed inside the inner protective shell. The cutting structure includes a power shaft rotatably connected through the protective outer shell, through which power is transmitted to the power shaft. An array of cutting blades is mounted on the power shaft. The cooling structure includes a cooling water tank installed between the protective outer shell and the inner protective shell. A circumferentially arrayed water spray piston is connected to the lower side of the cooling water tank, and a piston rod is slidably connected through the lower side of the water spray piston.

[0008] Preferably, the power structure includes a drive motor mounted on a base, a transmission wheel mounted on the output shaft of the drive motor, a driven wheel rotatably connected to the corresponding transmission wheel inside the base, and a transmission belt provided between the transmission wheel and the driven wheel.

[0009] Preferably, the gas supply pipe is connected to the outer side of the inner shell and the inner part of the discharge structure, and an automatic valve for intermittent adjustment is provided inside the gas supply pipe.

[0010] Preferably, a sealing ring is installed on the lower outer edge of the protective inner shell, and symmetrically distributed brake switches are slidably connected to the upper and lower sides of the sealing ring inside the protective outer shell. A circumferentially arrayed connecting rod is installed between the brake switches, and the connecting rod is slidably connected to the sealing ring. The brake switch on the upper side of the sealing ring is pressed and engaged with the piston rod, and a pressure valve is provided on the lower side of the protective outer shell corresponding to the sealing ring.

[0011] Preferably, the water-spraying piston is fitted to the protective inner shell, the water-spraying piston is provided with cooling water spray holes, and the protective inner shell is provided with through holes corresponding to the water spray holes of the water-spraying piston.

[0012] Preferably, the lower side of the feed hopper is provided with an arc-shaped surface, and the length of the arc-shaped surface of the feed hopper is greater than the distance between the friction rod and the protective inner shell.

[0013] Preferably, the power shaft is splinedly connected to the driven wheel, the power shaft is rotatably connected to the base, a chassis is mounted on the power shaft, and a circumferentially arrayed actuating blocks are mounted on the chassis.

[0014] Preferably, the discharge structure includes a bottom bracket installed at the bottom of the protective housing, a discharge swashplate installed inside the bottom bracket, and a discharge hopper connected to the inside of the bottom bracket installed on the outer contour of the bottom bracket. The discharge swashplate is inclined downward around the central axis on the side closer to the discharge hopper.

[0015] Preferably, the upper side of the bottom support is set as an inclined surface, the lower surface of the bottom support is provided with through holes arranged in a circumferential array, and the discharge sloping plate is provided with air holes.

[0016] This invention also provides a method for friction granulation of waste chemical fibers, comprising the following steps:

[0017] S1. The operator pours the waste chemical fiber into the protective shell through the feed hopper. Then, the drive motor is started, which drives the power shaft to rotate through the transmission wheel and transmission belt. The waste chemical fiber is then cut by the cutting blade. As the waste chemical fiber flies around, it collides and rubs with the friction rod, which causes the temperature of the waste chemical fiber to rise. Some of the waste chemical fiber collides and rubs with the inner shell of the protective shell through the gap of the friction rod. Then, it returns to the friction rod through the bottom support and is cut again.

[0018] S2. After the waste chemical fibers are completely cut and heated to about 100-200℃, they become semi-plasticized. The chemical fiber particles then stick together to form particles of different sizes. Large particles cannot pass through the gaps between the friction rods and be cut again, while small particles gather between the friction rods and the protective inner shell. The gas pump blows gas into the protective shell through the automatic valve in the gas supply pipe, so that the small particles are cooled by the water sprayed by the water spray piston.

[0019] S3. The cooled small particles fall onto the bottom support, then through the connecting hole on the bottom support onto the discharge sloping plate, and finally through the discharge hopper.

[0020] The beneficial effects of this invention are as follows:

[0021] This waste chemical fiber friction granulation device and method involves cutting waste chemical fibers into powder using a cutting blade. The powder is then heated through friction, causing it to adhere into granules of varying sizes. Larger granules are pushed upwards by a tossing block and cut again by the cutting blade. The granules are then cooled by water spray from a water-spraying piston through the gap in the friction rod, before being discharged through a connecting hole. The friction rod accelerates the heating efficiency of the chemical fibers while simultaneously intercepting large granules, allowing only small granules to pass through, thus ensuring the quality of the finished product. A gas pump intermittently injects gas into the protective shell. While controlling the intermittent water spraying of the cooling structure, the powdered chemical fibers between the friction rod and the inner protective shell are carried back into the friction rod, ensuring the high utilization rate of the powdered chemical fibers.

[0022] Other advantages, objectives, and features of the invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination, or may be learned from practice of the invention. The objectives and other advantages of the invention can be realized and obtained through the following description. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the main structure of the present invention;

[0024] Figure 2 This is a cross-sectional view of the internal structure of the present invention;

[0025] Figure 3 This is a schematic diagram of the shell structure of the present invention;

[0026] Figure 4 This is a schematic diagram of the cooling structure of the present invention;

[0027] Figure 5 This is a schematic diagram of the friction rod connection of the present invention;

[0028] Figure 6 This is a schematic diagram of the cutting structure of the present invention;

[0029] Figure 7 This is a schematic diagram of the discharge structure of the present invention.

[0030] In the picture: 1. Base;

[0031] 2. Power structure; 21. Drive motor; 22. Transmission pulley; 23. Transmission belt; 24. Driven pulley;

[0032] 3. Gas pump; 4. Gas pipeline;

[0033] 5. Shell structure; 51. Protective outer shell; 52. Protective inner shell; 53. Feed hopper;

[0034] 6. Cooling structure; 61. Cooling water tank; 62. Water spray piston; 63. Piston rod; 64. Brake switch; 65. Connecting rod; 66. Sealing ring;

[0035] 7. Friction rod;

[0036] 8. Cutting structure; 81. Power shaft; 82. Cutting blade; 83. Chassis; 84. Actuating block;

[0037] 9. Discharge structure; 91. Bottom support; 92. Discharge sloping plate; 93. Discharge hopper; 94. Connecting hole. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0039] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0040] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0041] In the above description of the present invention, it should be noted that the terms "one side," "the other side," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the invention is conventionally placed during use. These terms are used only for the convenience of describing the present invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0042] Furthermore, terms such as "identical" do not imply that components must be absolutely identical; minor differences are permissible. The term "perpendicular" simply means that the positional relationship between components is more perpendicular than "parallel," not that the structure must be perfectly perpendicular; a slight tilt is acceptable.

[0043] Please see Figures 1 to 7 This invention provides a technical solution: a device and method for friction granulation of waste chemical fibers. It includes a base 1, a power structure 2 installed inside the base 1, a shell structure 5 installed on the base 1, a cooling structure 6 installed inside the shell structure 5, a discharge structure 9 installed at the bottom of the shell structure 5, friction rods 7 arranged in a circumferential array installed on the discharge structure 9, a cutting structure 8 rotatably connected inside the discharge structure 9, a gas pump 3 installed inside the base 1, and a gas supply pipe 4 connected to the gas pump 3 and communicating with the shell structure 5.

[0044] The shell structure 5 includes a protective outer shell 51 mounted on the base 1, a protective inner shell 52 installed inside the protective outer shell 51, and a feed hopper 53 installed inside the protective inner shell 52. The cutting structure 8 includes a power shaft 81 that is rotatably connected through the protective outer shell 51. The power of the power structure 2 is transmitted to the power shaft 81. An array of cutting blades 82 are mounted on the power shaft 81. The cooling structure 6 includes a cooling water tank 61 installed between the protective outer shell 51 and the protective inner shell 52. A circumferentially arrayed water spray piston 62 is connected to the lower side of the cooling water tank 61. A piston rod 63 is slidably connected through the lower side of the water spray piston 62.

[0045] Using the above method, waste chemical fibers are poured into the protective outer shell 51 along the inner protective shell 52. By activating the power structure 2, the power shaft 81 drives the cutting blade 82 to rotate, thereby cutting the waste chemical fibers into powder. As the powdered chemical fibers pass through the cutting blade 82, friction rod 7, and protective inner shell 52, the temperature of the powdered chemical fibers rises. When the temperature reaches about 100-200℃, the powdered chemical fibers semi-plasticize and become sticky, thus sticking together into particles of different sizes. Large particles are intercepted by the friction rod 7, while small particles accumulate between the protective inner shell 52 and the friction rod 7 through the gaps in the friction rod 7.

[0046] Gas is intermittently pumped into the protective shell 51 by the gas pump 3, which causes the piston rod 63 to move upward, causing the water spray piston 62 to spray water into the inner protective shell 52, cooling down the small particles that gather near the inner protective shell 52, thereby eliminating the stickiness of the small particles, and allowing the small particles to be discharged out through the discharge structure 9.

[0047] Please see Figure 2 The power structure 2 includes a drive motor 21 mounted on the base 1. A transmission wheel 22 is mounted on the output shaft of the drive motor 21. A driven wheel 24 is rotatably connected to the transmission wheel 22 inside the base 1. A transmission belt 23 is provided between the transmission wheel 22 and the driven wheel 24.

[0048] The gas supply pipe 4 is connected to the outer side of the inner shell 52 and the inner part of the discharge structure 9. An automatic valve for intermittent adjustment is installed inside the gas supply pipe 4.

[0049] Using the above method, the gas pump 3 delivers gas to the protective shell 51 through the automatic valve in the gas supply pipe 4, which intermittently changes between the discharge structure 9 and the protective shell 51 and the protective inner shell 52. This causes the water spray piston 62 to intermittently spray water into the protective inner shell 52, and also causes the discharge structure 9 to intermittently blow air upwards. This causes the powdered chemical fiber between the protective inner shell 52 and the friction rod 7 to slide along the lower side of the feed hopper 53 into the friction rod 7.

[0050] Please see Figure 3 and Figure 4 A sealing ring 66 is installed on the lower outer edge of the inner shell 52. A brake switch 64 is symmetrically distributed and slidably connected to the upper and lower sides of the sealing ring 66 inside the outer shell 51. A connecting rod 65 is circumferentially arrayed between the brake switches 64. The connecting rod 65 and the sealing ring 66 are slidably connected through each other. The brake switch 64 on the upper side of the sealing ring 66 is squeezed and fitted with the piston rod 63. A pressure valve is provided on the lower side of the sealing ring 66 on the outer shell 51.

[0051] The water spray piston 62 is fitted to the protective inner shell 52. The water spray piston 62 is provided with a cooling water spray hole, and the protective inner shell 52 is provided with a through hole corresponding to the water spray hole of the water spray piston 62.

[0052] Using the above method, the sealing ring 66 makes the protective outer shell 51, the protective inner shell 52 and the discharge structure 9 form a sealed space. When the gas pump 3 inputs gas into it, it squeezes the brake switch 64 on the lower side to slide upward, and then the brake switch 64 on the upper side squeezes the piston rod 63, causing the water spray piston 62 to spray water into the protective inner shell 52. Due to the automatic valve in the gas supply pipe 4, the gas pump 3 delivers gas intermittently. When there is no gas input, the pressure valve on the protective outer shell 51 continues to exhaust gas, thereby ensuring that the pressure in the sealed space is restored, and thus the brake switch 64 is reset.

[0053] Please see Figure 2 and Figure 3 The lower side of the feed hopper 53 is provided with an arc-shaped surface, and the length of the arc-shaped surface of the feed hopper 53 is greater than the distance between the friction rod 7 and the protective inner shell 52.

[0054] The drive shaft 81 is splinedly connected to the driven wheel 24, and the drive shaft 81 is rotatably connected to the base 1. A chassis 83 is mounted on the drive shaft 81, and a circumferentially arrayed toggle blocks 84 are mounted on the chassis 83.

[0055] Using the above method, the gas blown into the protective inner shell 52 through the arc-shaped surface on the lower side of the feed hopper 53 drives the powdered chemical fiber to slide along the lower side of the protective inner shell 52 into the friction rod 7, thereby ensuring the utilization rate of the powdered chemical fiber. Through the actuating block 84 on the chassis 83, the large particles of chemical fiber falling on the chassis 83 are pushed upward and then cut by the cutting blade 82.

[0056] Please see Figures 5 to 7 The discharge structure 9 includes a bottom bracket 91 installed at the bottom of the protective housing 51. A discharge swash plate 92 is installed inside the bottom bracket 91. A discharge hopper 93 connected to the inside of the bottom bracket 91 is installed on the outer contour of the bottom bracket 91. The discharge swash plate 92 is inclined downward around the central axis on the side close to the discharge hopper 93.

[0057] The upper side of the bottom support 91 is set as an inclined surface, and the bottom of the bottom support 91 is provided with through holes distributed in a circumferential array. The discharge sloping plate 92 is provided with air holes.

[0058] Using the above method, through the air holes on the discharge sloping plate 92 and the connecting hole 94, the gas pump 3 inputs air into the bottom support 91, and sprays it into the protective inner shell 52 through the connecting hole 94, thereby driving the powdered chemical fiber to slide into the friction rod 7. At the same time, the cooled small granular chemical fiber will also fall onto the discharge sloping plate 92 through the connecting hole 94. The inclined discharge sloping plate 92 allows the small granular chemical fiber to be discharged through the discharge hopper 93.

[0059] This invention also provides a method for friction granulation of waste chemical fibers, comprising the following steps:

[0060] S1. The operator pours waste chemical fibers into the protective shell 51 through the feed hopper 53. Then, the drive motor 21 is started to drive the power shaft 81 to rotate through the transmission wheel 22 and the transmission belt 23. The waste chemical fibers are then cut by the cutting blade 82. As the waste chemical fibers fly around, they collide and rub against the friction rod 7, which causes the temperature of the waste chemical fibers to rise. Some of the waste chemical fibers collide and rub against the inner protective shell 52 through the gap of the friction rod 7. Then, they return to the friction rod 7 through the bottom support 91 and are cut again.

[0061] S2. After the waste chemical fiber is completely cut and heated to about 100-200℃, it becomes semi-plasticized. Then the chemical fiber particles stick together to form particles of different sizes. Large particles cannot pass through the gap between the friction rods 7 and be cut again. Small particles gather between the friction rods 7 and the protective inner shell 52. The gas pump 3 blows the gas into the protective outer shell 51 through the automatic valve in the gas supply pipe 4, so that the small particles are cooled by the water sprayed by the water spray piston 62.

[0062] S3. The cooled small particles fall onto the bottom support 91, and then fall onto the discharge sloping plate 92 through the connecting hole 94 on the bottom support 91, and then are discharged through the discharge hopper 93.

[0063] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A waste chemical fiber friction granulation device, comprising a base (1), a power structure (2) installed inside the base (1), a shell structure (5) installed on the base (1), a cooling structure (6) installed inside the shell structure (5), a discharge structure (9) installed at the bottom of the shell structure (5), friction rods (7) arranged in a circumferential array installed on the discharge structure (9), a cutting structure (8) rotatably connected inside the discharge structure (9), a gas pump (3) installed inside the base (1), a gas supply pipe (4) connected to the gas pump (3), and the gas supply pipe (4) connected to the shell structure (5), characterized in that: in, The housing structure (5) includes a protective outer shell (51) mounted on a base (1), a protective inner shell (52) installed inside the protective outer shell (51), and a feed hopper (53) installed inside the protective inner shell (52). The cutting structure (8) includes a power shaft (81) rotatably connected through the protective outer shell (51), the power of the power structure (2) is transmitted to the power shaft (81), and an array of cutting blades (82) are mounted on the power shaft (81). The cooling structure (6) includes a cooling water tank (61) installed between the protective outer shell (51) and the protective inner shell (52), and a circumferentially arrayed water spray piston (62) is connected to the lower side of the cooling water tank (61). A piston rod (63) is slidably connected through the lower side of the water spray piston (62).

2. The waste chemical fiber friction granulation device according to claim 1, characterized in that: The power structure (2) includes a drive motor (21) mounted on a base (1), a transmission wheel (22) is mounted on the output shaft of the drive motor (21), a driven wheel (24) is rotatably connected to the transmission wheel (22) in the base (1), and a transmission belt (23) is provided between the transmission wheel (22) and the driven wheel (24).

3. The waste chemical fiber friction granulation device according to claim 1, characterized in that: The gas supply pipe (4) is connected to the outer side of the inner shell (52) and the inner part of the discharge structure (9), and an automatic valve for intermittent adjustment is provided inside the gas supply pipe (4).

4. The waste chemical fiber friction granulation device according to claim 1, characterized in that: A sealing ring (66) is installed on the lower outer edge of the protective inner shell (52). A symmetrically distributed brake switch (64) is slidably connected to the upper and lower sides of the sealing ring (66) inside the protective outer shell (51). A circumferentially arrayed connecting rod (65) is installed between the brake switches (64). The connecting rod (65) and the sealing ring (66) are slidably connected through each other. The brake switch (64) on the upper side of the sealing ring (66) is squeezed and fitted with the piston rod (63). A pressure valve is provided on the lower side of the protective outer shell (51) corresponding to the sealing ring (66).

5. The waste chemical fiber friction granulation device according to claim 4, characterized in that: The water-spraying piston (62) is fitted to the protective inner shell (52). The water-spraying piston (62) is provided with a cooling water-spraying hole. The protective inner shell (52) is provided with a through hole corresponding to the water-spraying hole of the water-spraying piston (62).

6. The waste chemical fiber friction granulation device according to claim 1, characterized in that: The lower side of the feed hopper (53) is provided with an arc-shaped surface, and the length of the arc-shaped surface of the feed hopper (53) is greater than the distance between the friction rod (7) and the protective inner shell (52).

7. The waste chemical fiber friction granulation device according to claim 2, characterized in that: The power shaft (81) is splinedly connected to the driven wheel (24), and the power shaft (81) is rotatably connected to the base (1). A chassis (83) is mounted on the power shaft (81), and a circumferentially arrayed toggle block (84) is mounted on the chassis (83).

8. The waste chemical fiber friction granulation device according to claim 1, characterized in that: The discharge structure (9) includes a bottom bracket (91) installed at the bottom of the protective shell (51), a discharge swashplate (92) is installed inside the bottom bracket (91), and a discharge hopper (93) connected to the bottom bracket (91) is installed on the outer contour of the bottom bracket (91). The discharge swashplate (92) is inclined downward around the central axis on the side close to the discharge hopper (93).

9. The waste chemical fiber friction granulation device according to claim 8, characterized in that: The upper side of the bottom support (91) is set as an inclined surface, and the bottom of the bottom support (91) is provided with through holes arranged in a circumferential array. The discharge sloping plate (92) is provided with air holes.

10. A method for friction granulation of waste chemical fibers, applied to the waste chemical fiber friction granulation apparatus as described in any one of claims 1-9, characterized in that: S1. The operator pours the waste chemical fiber into the protective shell (51) along the feed hopper (53). Then, the drive motor (21) is started and the drive shaft (81) is rotated through the transmission wheel (22) and the transmission belt (23). The waste chemical fiber is then cut by the cutting blade (82). As the waste chemical fiber is scattered, it collides and rubs with the friction rod (7), which causes the temperature of the waste chemical fiber to rise. Some of the waste chemical fiber collides and rubs with the protective inner shell (52) through the gap of the friction rod (7). Then, it returns to the friction rod (7) through the bottom bracket (91) and is cut again. S2. When the waste chemical fiber is completely cut and heated to about (100)-(200)℃, it becomes semi-plasticized. Then the chemical fiber particles stick together to form particles of different sizes. The large particles cannot pass through the gap between the friction rods (7) and be cut again. The small particles gather between the friction rods (7) and the protective inner shell (52). The gas pump (3) blows the gas into the protective shell (51) through the automatic valve in the gas pipe (4), so that the small particles are cooled by the water sprayed by the water spray piston (62). S3. The cooled small particles fall onto the bottom support (91), and through the connecting hole (94) on the bottom support (91) onto the discharge sloping plate (92), and then through the discharge hopper (93) for discharge.

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