A production device and production process for preparing geotextile from waste textiles

Abstract

The present invention discloses a production device and a production process for producing geotextiles from waste textiles, belonging to the field of waste textile recycling technology. The device comprises a workbench with a rotating trough having an upper opening located at the top and a side opening located at the side. A heat-conducting cylinder is rotatably arranged in the rotating trough. A heater is fixedly mounted on the side wall of the rotating trough away from the side opening. The heater is arranged near the inner top surface of the heat-conducting cylinder. The workbench is provided with a driving mechanism for driving the heat-conducting cylinder to rotate about its own axis. A fixing frame is provided on the upper end of the workbench on the side of the upper opening. The device and the production process for producing geotextiles from waste textiles, by arranging a heat-conducting cylinder to cooperate with a pressure roller, not only makes temperature changes smoother and more uniform, but also allows the heat-conducting cylinder to recycle excess heat, so that the heat-conducting cylinder has a higher initial temperature, can achieve a preheating effect, and has a better heating effect on the thin layer blank.

Description

Technical Field

[0001] The present invention belongs to the technical field of waste textile recycling, and in particular relates to a production device and a production process for preparing geotextiles from waste textiles. Background Art

[0002] When processing waste textiles, many of them are disposed of by incineration or landfill, which not only pollutes the environment, but also causes great waste of resources. Therefore, some companies have begun to prepare geotextiles by recycling waste textiles.

[0003] Patent document with publication number CN107475901A discloses a method for preparing geotextiles by cleanly recycling waste textiles. A thin layer blank is made by first freezing and crushing it and then heating and stirring it. The thin layer blank is separated from the end of the conveyor belt and introduced into multiple sets of electromagnetic heating high-temperature rollers. The temperature of each roller is set in the order of first increasing and then decreasing. While continuously pressing to form a dry thin layer, the high temperature is used to melt the low-melting-point fine fibers of some waste textiles, and re-solidify and bond them. After discharging, the material is slowly cooled and dried to obtain geotextile. The number of rollers in the multiple sets of high-temperature rollers is 4 to 8, the temperature of the first roller and the last roller is 150 to 180°C, and the highest temperature of the middle roller is 180 to 200°C.

[0004] In the above technical solution, multiple groups of high-temperature rollers are used to heat the thin-layer blanks step by step to achieve the pressing of the thin-layer blanks. However, in this process, the temperature changes between the various high-temperature rollers are more obvious and step-like, resulting in uneven heating of the thin-layer blanks, thereby affecting the final yield.

[0005] To this end, we propose a production device and production process for preparing geotextiles from waste textiles to solve the above problems. Summary of the Invention

[0006] The purpose of the present invention is to solve the problem in the prior art that during the pressing process of thin layer blanks, the various heating rollers are not in a continuous state, resulting in a step-like change in the heating temperature, which easily affects the final pressing yield. A production device and a production process for preparing geotextiles from waste textiles are proposed.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] A production device for preparing geotextiles from waste textiles, comprising a workbench, wherein the workbench is provided with a rotating groove, the rotating groove having an upper opening located on the upper side and a side opening located on the side, a heat-conducting cylinder is rotatably arranged in the rotating groove, a heater is fixedly installed on the side wall of the rotating groove away from the side opening, the heater is arranged close to the inner top surface of the heat-conducting cylinder, the workbench is provided with a driving mechanism for driving the heat-conducting cylinder to rotate around its own axis, a fixing frame is provided on the upper end of the workbench on one side of the upper opening, the fixing frame is arc-shaped, the lower end of the fixing frame is fixedly connected to the upper end of the workbench, a plurality of pressing rollers are rotatably connected to the fixing frame, and a gap is left between the pressing rollers and the outer wall of the heat-conducting cylinder for pressing a thin layer blank.

[0009] Preferably, a plurality of mounting grooves are provided on the inner wall of the rotating groove, and a plurality of guide rollers are rotatably connected in the mounting grooves. The axes of the guide rollers are parallel to the axis of the heat-conducting tube, and the side walls of the guide rollers are in contact with the outer wall of the heat-conducting tube.

[0010] Preferably, the driving mechanism includes a motor fixedly mounted on the side wall of the workbench, and a plurality of driving gears are rotatably connected to the side wall of the workbench close to the side opening. The motor is connected to one of the driving gears through a transmission member, and a driving gear ring is provided on the side wall of the heat conducting tube, and the driving gear ring is engaged with each driving gear.

[0011] Preferably, a driven gear ring is provided on the side wall of the heat-conducting tube, and the end face of each pressure roller is fixedly connected to a driven gear. The driven gear ring and each driven gear are engaged with each other, so that when the heat-conducting tube rotates, it drives multiple pressure rollers to rotate in the opposite direction at the same time.

[0012] Preferably, a discharge channel communicating with the outside is provided on the side wall of the rotating groove, the discharge channel is arranged to be inclined downward, a scraper is fixedly connected to the bottom surface of the discharge channel, and the upper end of the scraper acts on the outer wall of the heat-conducting cylinder.

[0013] Preferably, a heat preservation plate is fixedly connected to the upper end of the workbench near the upper opening, and the heater is fixedly mounted on the side wall of the heat preservation plate.

[0014] Preferably, a fixed shaft is fixedly connected to the side wall of the rotating groove away from the side opening, and two groups of reflective plates are installed on the fixed shaft. The two groups of reflective plates together form a reflective area, and the reflective area is located directly below the heater, and the reflective area is arranged opposite to the inner top surface of the heat-conducting tube.

[0015] Preferably, the reflective plate is rotatably connected to the fixed shaft, and a sliding rod is fixedly connected to the side wall of the rotating groove away from the side opening. The sliding rod is a U-shaped structure, and two sliders are slidably connected to the sliding rod. The upper ends of the sliders are fixedly connected to support rods, and the upper ends of the two support rods act on the lower surfaces of the two reflective plates respectively. The lower ends of the sliders are fixedly connected to threaded sleeves, and the sliding rod is rotatably connected to the threaded rod through a fixed seat. The threaded rod is provided with two opposite sections of threads, and the two threaded sleeves are respectively threadedly connected to the two sections of threads.

[0016] Preferably, the upper end of the support rod is rotatably connected to a roller.

[0017] Also disclosed is a production process for preparing geotextiles from waste textiles, comprising the following process steps:

[0018] S1, disinfecting, rinsing, and drying the waste textiles, and then freezing and crushing them to obtain loose waste textiles;

[0019] S2. Adding a film-forming agent and water to the loose waste textiles, heating and stirring until the mixture becomes viscous;

[0020] S3, scraping the viscous waste textiles onto the surface of the transmission belt to form a thin layer;

[0021] S4. Send the thin layer blank onto the workbench and place it on one side of the heat-conducting cylinder so that the thin layer blank rotates along with the heat-conducting cylinder;

[0022] S5. While the heat-conducting cylinder heats the thin-layer blank, the pressing rollers are used to press the thin-layer blank to form a dry thin layer.

[0023] S6. Cool and dry the dried thin layer to obtain a geotextile.

[0024] To sum up, the technical effects and advantages of the present invention are as follows: the production device and production process for preparing geotextiles from waste textiles, by arranging a heat-conducting cylinder and a pressure roller, can not only make the temperature change smoother and more uniform, but the heat-conducting cylinder can also recycle excess heat, so that the heat-conducting cylinder has a higher initial temperature, which can achieve a preheating effect and a better heating effect on thin layer blanks.

[0025] In addition, since the heat-conducting cylinder can always keep in contact with the thin-layer blank, the thin-layer blank can be transferred more continuously, which can greatly reduce the bending or wrinkling of the thin-layer blank caused during the transfer process and improve the success rate of pressing. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 Schematic diagram of the internal structure of the present invention;

[0027] Figure 2Schematic diagram of the external structure of the present invention;

[0028] Figure 3 Schematic diagram of the structure of the workbench in the present invention;

[0029] Figure 4 Schematic diagram of the structure of the heat-conducting tube in the present invention;

[0030] Figure 5 Schematic diagram of the structure of another embodiment of the present invention;

[0031] Figure 6 Schematic diagram of the positional relationship between the support rod and the threaded rod in the present invention.

[0032] In the figure: 1. workbench; 11. rotating groove; 111. upper opening; 112. side opening; 113. mounting groove; 12. guide roller; 13. motor; 131. driving gear; 132. transmission member; 14. discharge channel; 141. scraper; 15. insulation plate; 16. fixed shaft; 17. reflecting plate; 171. sliding rod; 172. slider; 173. support rod; 1731. roller; 174. threaded sleeve; 175. fixing seat; 176. threaded rod; 2. heat-conducting tube; 21. driving gear ring; 22. driven gear ring; 3. heater; 41. fixing frame; 42. pressure roller; 421. driven gear. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0034] In order to better understand the above technical solution, the above technical solution will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0035] Example

[0036] like Figure 1-6As shown, a production device for preparing geotextiles from waste textiles and a production process thereof, include a workbench 1, a rotating groove 11 is opened on the workbench 1, the rotating groove 11 has an upper opening 111 located on the upper side and a side opening 112 located on the side, a heat-conducting cylinder 2 is rotatably arranged in the rotating groove 11, a heater 3 is fixedly installed on the side wall of the rotating groove 11 away from the side opening 112, the heater 3 is arranged close to the inner top surface of the heat-conducting cylinder 2, a driving mechanism for driving the heat-conducting cylinder 2 to rotate around its own axis is provided on the workbench 1, a fixing frame 41 is provided on the side of the upper opening 111 at the upper end of the workbench 1, the fixing frame 41 is arc-shaped, and the lower end of the fixing frame 41 is fixedly connected to the upper end of the workbench 1, and a plurality of pressing rollers 42 are rotatably connected to the fixing frame 41, and a gap is left between the pressing rollers 42 and the outer wall of the heat-conducting cylinder 2 for pressing the thin layer blank.

[0037] Compared with the heating and pressing method of the prior art that uses multiple pairs of pressure rollers and heating rollers to increase the temperature and then decrease the temperature, the present application is provided with a heat-conducting tube 2, and a heater 3 is installed near the upper side of the heat-conducting tube 2 so that the upper part of the heat-conducting tube 2 can always maintain the highest temperature during the rotation of the heat-conducting tube 2. That is to say, when the thin-layer blank rotates with the heat-conducting tube 2, the temperature of the thin-layer blank first increases and then decreases. Moreover, since the heat-conducting tube 2 rotates continuously, compared with the step-by-step temperature change achieved by multiple heating rollers in the prior art, the temperature on the heat-conducting tube 2 changes linearly and is more uniform. In addition, the heat-conducting tube 2 can recycle excess heat so that the heat-conducting tube 2 has a higher initial temperature, which can achieve a preheating effect and a better heating effect on the thin-layer blank.

[0038] In addition, since the heat-conducting cylinder 2 can always keep in contact with the thin-layer blank, the thin-layer blank can be transported more continuously, which can greatly reduce the bending or wrinkling of the thin-layer blank during transportation and improve the success rate of pressing.

[0039] In order to fix and drive the heat-conducting tube 2, a plurality of mounting grooves 113 are provided on the inner wall of the rotating groove 11. A plurality of guide rollers 12 are rotatably connected in the mounting grooves 113. The axes of the guide rollers 12 are parallel to the axis of the heat-conducting tube 2, and the side walls of the guide rollers 12 are in contact with the outer wall of the heat-conducting tube 2. When the heat-conducting tube 2 rotates, it can always maintain rolling contact with the guide rollers 12, effectively reducing friction resistance. The driving mechanism includes a motor 13 fixedly mounted on the side wall of the workbench 1. A plurality of driving gears 131 are rotatably connected to the side wall of the workbench 1 near the side opening 112. The motor 13 is connected to one of the driving gears 131 through a transmission member 132. A driving gear ring 21 is provided on the side wall of the thermal tube 2. The driving gear ring 21 and each driving gear 131 are engaged with each other. That is, the motor 13 acts on the driving gear ring 21 of the thermal tube 2 through one of the driving gears 131. The engagement between the driving gear 131 and the driving gear ring 21 is utilized to drive the thermal tube 2, while the remaining driving gears 131 can serve as an auxiliary positioning function.

[0040] In order to further improve the pressing effect of the geotextile, a driven gear ring 22 is provided on the side wall of the heat-conducting tube 2, and the end face of each pressure roller 42 is fixedly connected to a driven gear 421. The driven gear ring 22 and each driven gear 421 are engaged with each other, so that when the heat-conducting tube 2 rotates, it will drive multiple pressure rollers 42 to rotate in the opposite direction at the same time. That is to say, when the heat-conducting tube 2 is rotating, the driven gear ring 22 will simultaneously drive multiple driven gears 421 to rotate in the opposite direction, so that the heat-conducting tube 2 and the pressure roller 42 rotate in the opposite direction synchronously, thereby better realizing the pressing of the thin layer blank.

[0041] In order to clean the waste chips on the surface of the heat-conducting tube 2, a discharge channel 14 connected to the outside is opened on the side wall of the rotating groove 11. The discharge channel 14 is arranged to be inclined downward. A scraper 141 is fixedly connected to the bottom surface of the discharge channel 14. The upper end of the scraper 141 acts on the outer wall of the heat-conducting tube 2. When the heat-conducting tube 2 rotates, the scraper 141 remains stationary, so that the scraper 141 and the side wall of the heat-conducting tube 2 are relatively displaced, thereby scraping off the waste chips on the side wall of the heat-conducting tube 2, thereby keeping the surface of the heat-conducting tube 2 clean, which is convenient for the next operation.

[0042] In order to improve the thermal insulation effect and reduce heat loss, an insulation board 15 is fixedly connected to the upper end of the workbench 1 near the upper opening 111, and the heater 3 is fixedly installed on the side wall of the insulation board 15. That is to say, the insulation board 15 is arranged on the side of the workbench 1 away from the side opening 112, which can have an insulation effect on the heater 3.

[0043] Furthermore, a fixed shaft 16 is fixedly connected to the side wall of the rotating groove 11 away from the side opening 112, and two groups of reflective plates 17 are installed on the fixed shaft 16. The two groups of reflective plates 17 together form a reflective area. The reflective area is located directly below the heater 3, and the reflective area is arranged opposite to the inner top surface of the heat-conducting tube 2. The reflective plate 17 can be made of aluminum foil material, and reflects the heat to the upper side through diffuse reflection, so that the heat is concentrated in the upper half of the heat-conducting tube 2, thereby improving the heating effect of the thin layer blank.

[0044] Furthermore, in order to facilitate the adjustment of the heating area as needed, the reflective plate 17 is rotatably connected to the fixed shaft 16, and a sliding rod 171 is fixedly connected to the side wall of the rotating groove 11 away from the side opening 112. The sliding rod 171 is a U-shaped structure, and the two side edges of the sliding rod 171 are parallel to the axis of the heat-conducting tube 2 and are fixedly connected to the side wall of the rotating groove 11 away from the side opening 112. Two sliders 172 are slidably connected to the other side of the sliding rod 171. The upper end of the slider 172 is fixedly connected to a support rod 173. The upper ends of the two support rods 173 act on the lower surfaces of the two reflective plates 17 respectively. The lower end of the slider 172 is fixedly connected to a threaded sleeve 174, and the sliding rod 171 is rotatably connected to the threaded rod 176 through the fixed seat 175. The threaded rod 176 is provided with two opposite sections of threads, and the two threaded sleeves 174 are respectively threadedly connected to the two sections of threads. When the size of the heating area needs to be adjusted, the threaded rod 176 is rotated, and the threaded rod 176 simultaneously drives the two support rods 173 to move in opposite directions, and the upper end of the support rod 173 acts on the reflective plate 17 to make the two reflective plates 17 gather or expand, so that the size of the heating area can be adjusted as needed to meet more usage requirements.

[0045] In order to reduce the friction between the support rod 173 and the reflector 17, the upper end of the support rod 173 is rotatably connected to a roller 1731. During the adjustment process, the roller 1731 always maintains a rolling connection with the reflector 17, making the adjustment process smoother.

[0046] A production process for preparing geotextiles from waste textiles, comprising the following process steps:

[0047] S1, disinfecting, rinsing, and drying the waste textiles, and then freezing and crushing them to obtain loose waste textiles;

[0048] S2. Adding a film-forming agent and water to the loose waste textiles, heating and stirring until the mixture becomes viscous;

[0049] S3, scraping the viscous waste textiles onto the surface of the transmission belt to form a thin layer;

[0050] S4, feeding the thin layer blank onto the workbench 1, and placing the thin layer blank on one side of the heat-conducting cylinder 2, so that the thin layer blank rotates with the heat-conducting cylinder 2;

[0051] S5, while the heat-conducting cylinder 2 heats the thin layer blank, the pressing roller 42 is used to press the thin layer blank to form a dry thin layer;

[0052] S6. Cool and dry the dried thin layer to obtain a geotextile.

[0053] The above are only preferred specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A production device for preparing geotextiles from waste textiles, comprising a workbench (1), characterized in that: The workbench (1) is provided with a rotating groove (11), the rotating groove (11) has an upper opening (111) located on the upper side and a side opening (112) located on the side, a heat-conducting tube (2) is rotatably arranged in the rotating groove (11), a heater (3) is fixedly installed on the side wall of the rotating groove (11) away from the side opening (112), and the heater (3) is arranged close to the inner top surface of the heat-conducting tube (2), and a driving mechanism for driving the heat-conducting tube (2) to rotate around its own axis is provided on the workbench (1), and a fixing frame (41) is provided on the side of the upper opening (111) at the upper end of the workbench (1), the fixing frame (41) is arc-shaped, and the lower end of the fixing frame (41) is fixedly connected to the upper end of the workbench (1), and a plurality of pressing rollers (42) are rotatably connected to the fixing frame (41), and a gap for pressing the thin-layer blank is left between the pressing rollers (42) and the outer wall of the heat-conducting tube (2); A fixed shaft (16) is fixedly connected to the side wall of the rotating groove (11) away from the side opening (112), and two groups of reflection plates (17) are installed on the fixed shaft (16). The two groups of reflection plates (17) together form a reflection area, and the reflection area is located directly below the heater (3), and the reflection area is arranged directly opposite to the inner top surface of the heat-conducting cylinder (2); The reflecting plate (17) is rotatably connected to the fixed shaft (16); a sliding rod (171) is fixedly connected to the side wall of the rotating groove (11) away from the side opening (112); the sliding rod (171) is a U-shaped structure; two sliders (172) are slidably connected to the sliding rod (171); the upper ends of the sliders (172) are fixedly connected to support rods (173); the upper ends of the two support rods (173) act on the lower surfaces of the two reflecting plates (17); the lower ends of the sliders (172) are fixedly connected to threaded sleeves (174); the sliding rod (171) is rotatably connected to a threaded rod (176) through a fixing seat (175); the threaded rod (176) is provided with two sections of opposite threads, and the two threaded sleeves (174) are respectively threadedly connected to the two sections of threads.

2. The production device for preparing geotextiles from waste textiles according to claim 1, characterized in that: A plurality of mounting grooves (113) are provided on the inner wall of the rotating groove (11), and a plurality of guide rollers (12) are rotatably connected in the mounting grooves (113). The axes of the guide rollers (12) are parallel to the axis of the heat-conducting tube (2), and the side walls of the guide rollers (12) are in contact with the outer wall of the heat-conducting tube (2).

3. The production device for preparing geotextiles from waste textiles according to claim 1, characterized in that: The driving mechanism comprises a motor (13) fixedly mounted on the side wall of the workbench (1); a plurality of driving gears (131) are rotatably connected to the side wall of the workbench (1) near the side opening (112); the motor (13) is transmission-connected to one of the driving gears (131) via a transmission member (132); a driving gear ring (21) is provided on the side wall of the heat-conducting cylinder (2); the driving gear ring (21) and the driving gears (131) are meshed with each other.

4. The production device for preparing geotextiles from waste textiles according to claim 1, characterized in that: A driven gear ring (22) is provided on the side wall of the heat-conducting tube (2), and the end surface of each pressure roller (42) is fixedly connected to a driven gear (421). The driven gear ring (22) and each driven gear (421) are meshed with each other, so that when the heat-conducting tube (2) rotates, it drives multiple pressure rollers (42) to rotate in the opposite direction at the same time.

5. The production device for preparing geotextiles from waste textiles according to claim 1, characterized in that: A discharge channel (14) communicating with the outside is provided on the side wall of the rotating groove (11); the discharge channel (14) is arranged to be inclined downward; a scraper (141) is fixedly connected to the bottom surface of the discharge channel (14); the upper end of the scraper (141) acts on the outer wall of the heat-conducting cylinder (2).

6. The production device for preparing geotextiles from waste textiles according to claim 1, characterized in that: A heat preservation plate (15) is fixedly connected to the upper end of the workbench (1) near the upper opening (111), and the heater (3) is fixedly mounted on the side wall of the heat preservation plate (15).

7. The production device for preparing geotextiles from waste textiles according to claim 1, characterized in that: The upper end of the support rod (173) is rotatably connected to a roller (1731).

8. A process for producing geotextiles based on the device for producing geotextiles from waste textiles according to claim 7, characterized in that: The process steps include: S1, disinfecting, rinsing, and drying the waste textiles, and then freezing and crushing them to obtain loose waste textiles; S2. Adding a film-forming agent and water to the loose waste textiles, heating and stirring until the mixture becomes viscous; S3, scraping the viscous waste textiles onto the surface of the transmission belt to form a thin layer; S4, feeding the thin layer blank onto the workbench (1), and placing the thin layer blank on one side of the heat-conducting cylinder (2), so that the thin layer blank rotates along with the heat-conducting cylinder (2); S5, while the heat-conducting cylinder (2) heats the thin-layer blank, the pressing roller (42) compresses the thin-layer blank to form a dry thin layer; S6. Cool and dry the dried thin layer to obtain a geotextile.

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