TW202042928A - Absorbent sanitary product treatment system and the treatment method of the same - Google Patents

Abstract

Present invention relates an absorbent sanitary product treatment system, including: a cleaning device, a pulverizing device and a separating and recycling device, the absorbent sanitary products cleaned by the cleaning device, then the absorbent sanitary products pulverized by the pulverizing device, then using the separating and recycling device separate the material of the absorbent sanitary product; wherein the cleaning device having a washing drum, the washing drum having a first cleaning chamber and a second cleaning chamber, and a plurality of conveying cones, the absorbent sanitary product being raw clean in the first cleaning chamber then transferred to the second cleaning chamber by the conveying cones, and being fine clean in the second cleaning chamber, then transferred to the o the pulverizing device for pulverization.

Description

Absorbent sanitary product recovery processing system and recovery processing method thereof

The invention relates to an absorbent sanitary product recovery processing system and its recovery processing method, in particular to an absorbent sanitary product recovery processing system and its recovery processing method used for mass processing of diapers, nursing pads and the like.

Since the invention of disposable absorbent sanitary products such as disposable diapers, nursing pads, sanitary pads, etc., they have brought great convenience to people’s lives. Therefore, this type of disposable absorbent sanitary products have been widely used in daily life and medical treatment. The purpose of care.

Generally speaking, absorbent hygiene products take baby diapers as an example. The material of the skin contact layer is non-woven fabric, the outer layer is a polymer film (such as polyethylene film) as a waterproof layer, and the middle contains fluff pulp and absorbent Absorbent layer composed of synthetic polymer materials (such as sodium polyacrylate). When the paper diaper is used, the feces are wrapped in the paper diaper, the urine is absorbed into the absorbent layer, and the entire paper diaper containing the feces and urine is thrown into the trash can.

Although disposable sanitary products are convenient to use, they are bulky after use, and because of their high consumption, they generate a lot of garbage. Moreover, since urine, feces, and even blood will remain on the used diapers and nursing pads, they will not only emit disgusting odors, but also easily breed bacteria and cause environmental pollution. Therefore, for hospitals, nursing homes for the elderly, long-term care institutions, confinement centers and other places, a large amount of used diapers, nursing pads and other hygiene products are generated every day, so considerable costs must be spent to dispose of the waste absorbent Hygiene products.

At present, most absorbent sanitary products are directly buried or processed by incinerator incineration. However, the volume of the used absorbent sanitary products expands after absorbing the liquid, so it is not conducive to landfill treatment, and because the absorbent sanitary products are not only burnt It consumes energy and is prone to produce corrosive gas, which will cause the incinerator to be repaired earlier and shorten its life. Therefore, the waste of absorbent sanitary products poses serious problems in garbage disposal and environmental protection.

In addition, although some of the existing technologies can recover various materials (such as polymer films, non-woven fabrics, fluff fibers, and water-absorbing polymer materials) of used absorbent sanitary products through crushing and precipitation separation methods, most of the existing technologies It is to pulverize the used absorbent sanitary products and then carry out precipitation to separate various materials, and then wash the recovered materials to remove contaminants. Therefore, in the treatment process, the shredded absorbent sanitary products are broken and The fiber material has been mixed with various pollutants, so the subsequent cleaning treatment is quite difficult, and the cleanliness of the recovered material is not good, so it cannot be recycled and used, but the contaminated fiber can only be treated by incineration again.

Due to the above reasons, there are many defects in the existing recycling and processing methods of absorbent sanitary products. Therefore, how to overcome the above-mentioned shortcomings through process improvement has become one of the important issues to be solved by this business.

The purpose of the present invention is to solve the disadvantages that the waste disposal of the existing absorbent sanitary products is difficult, and the recycling materials cannot be reused.

The embodiment of the present invention provides an absorbent sanitary product recycling and processing system for recycling materials in the used absorbent sanitary product, including: a washing device, a crushing device, and a separation and recovery device. After the absorbent sanitary product is cleaned by the washing device, and then crushed by the pulverizing device, the material of the pulverized absorbent sanitary product is separated and recovered by the separation and recovery device; wherein The washing device has a washing drum and a driving device. The washing drum is driven by the driving device and can rotate around the central axis of the washing drum, and the washing drum is on the central axis. An inlet end and an outlet end are defined respectively at both ends of the cleaning drum; the inner space of the washing drum is at least divided into a first cleaning chamber and a second cleaning chamber, the first cleaning chamber is close to the inlet end, so The second cleaning chamber is close to the outlet end, the first cleaning chamber has a first outlet connected to the second cleaning chamber, and the second cleaning chamber has a second outlet connected to the outside of the outlet end The first cleaning chamber and the second cleaning chamber contain washing water, and the absorbent sanitary products to be treated enter the first washing chamber through the inlet end of the washing drum after preliminary washing, After entering the second cleaning chamber and cleaning again, it is discharged from the outlet end; a first conveying reel and a second conveying reel are respectively arranged above the inside of the first cleaning chamber and the second cleaning chamber The inner sides of the first conveying reel and the second conveying reel respectively form an arc-shaped guide surface that is inclined from top to bottom and faces the first outlet and the second outlet. A conveying reel and a side of the second conveying reel facing the outlet end are respectively connected to the first outlet and the second outlet, and the first conveying reel and the second conveying reel are facing A notch is formed on the side above the washing drum; the first conveying reel and the second conveying reel can rotate as the washing drum rotates around the central axis, and the The absorbent sanitary product after cleaning in the first cleaning chamber is transferred to the second cleaning chamber through the first outlet, and the absorbent sanitary product after cleaning in the second cleaning chamber passes through the first The two outlets are conveyed to the outside of the outlet end.

The embodiment of the present invention also provides a method for recycling absorbent sanitary products for recycling materials of absorbent sanitary products to be processed. The method for recycling absorbent sanitary products includes: a washing procedure, a crushing procedure, and Separation and recovery process; the absorbent sanitary products to be processed are first washed out of contaminants through the washing process, and then the absorbent sanitary products to be processed are crushed into fragments through the pulverization process, and then recovered through the separation The procedure separates polymer suspensions, fibrous materials, and polymer precipitates from the fragments of absorbent sanitary products; wherein the washing procedure includes at least a first washing step and a second washing step; the separation and recovery The procedure at least includes: a slurry step, a separation and sedimentation step, a suspended matter collection step, a fiber collection step, and a sediment collection step; wherein the slurry step is to combine the crushed absorbent sanitary fragments together The water flow enters a slurry cylinder, and in the slurry cylinder, the water flow entraining the fragments of the absorbent sanitary product forms a vortex flow, so that the materials in the fragments of the absorbent sanitary product are evenly dispersed in the water flow; The sedimentation and separation step is to make the water flow entrained with the fragments of the absorbent sanitary product enter a separation tank, and in the separation tank, the fragments of the absorbent sanitary product are formed to float on the surface due to the difference in specific gravity. Separate the polymer suspended matter on the water surface of the separation tank, the fiber material suspended in the water of the separation tank, and the polymer precipitate deposited on the bottom of the separation tank; then the suspended matter collection step, the fiber The collection step and the sediment collection step collect the polymer suspension, the fiber material, and the polymer sediment respectively.

In order to further understand the features and technical content of the present invention, please refer to the following detailed description and drawings about the present invention. However, the provided drawings are only for reference and description, and are not used to limit the present invention.

The following are specific examples to illustrate the implementation of the "absorbent sanitary product recycling system and recycling method" disclosed in the present invention. Those skilled in the art can understand the advantages and advantages of the present invention from the content disclosed in this specification. effect. The present invention can be implemented or applied through other different specific embodiments, and various details in this specification can also be modified and changed based on different viewpoints and applications without departing from the concept of the present invention. In addition, the drawings of the present invention are merely schematic illustrations, and are not drawn according to actual dimensions, and are stated in advance. The following embodiments will further describe the related technical content of the present invention in detail, but the disclosed content is not intended to limit the protection scope of the present invention.

As shown in Figures 1 to 15, the embodiment of the present invention provides an absorbent sanitary product used to treat baby diapers, adult diapers, sanitary pads, nursing pads, etc. after use, and the absorbent sanitary product contains An absorbent sanitary product recycling system for recycling polymer material membranes, fiber materials, and water-absorbing polymer materials, and a recycling method thereof.

As shown in Figures 1 to 12, the structure of the absorbent sanitary product recovery and processing system 1 used in the present invention mainly includes: a washing device 10, a feeding and conveying device 20, a crushing device 30, and a separating device. Recovering device 40. The absorbent sanitary products 50 to be processed are first packaged in a plurality of sealed bags 51, and the opening of each sealed bag 51 can be tightened through the cord 52, so that the sealed bag 51 is sealed and prevents the absorbent sanitary products to be processed 50 produces disgusting taste and bacterial contamination. Then the sealed bag 51 packed with the absorbent sanitary product 50 is transported by the feeding conveying device 20 to the inlet end 101 of the washing device 10, and the sealed bag 51 is destroyed so that the absorbent sanitary product 50 to be processed falls into After washing the absorbent sanitary product 50 to be processed in the washing device 10, the absorbent sanitary product 50 is crushed into fragments through the crushing device 30, and then the different materials in the absorbent sanitary product fragments are removed by the separating and recycling device 40 Separation and recycling.

As shown in Figures 1, 8 and 9, the feeding and conveying device 20 used in the present invention is arranged at a position close to the inlet end 101 of the cleaning device 10. The feeding and conveying device 20 has a feeding turntable 21, a Pour device 22, and a shearing device 23.

The feed carousel 21 has a plurality of rotating arms 211, and a clamping device 212 is provided at the end of each rotating arm 211. Each clamping device 212 can respectively hold a seal filled with absorbent sanitary products 50 to be processed. Bag 51, and move the sealed bag 51 to a feeding position. The pouring device 22 is arranged at a position adjacent to the inlet end 101 of the washing device 10. The pouring device 22 includes a swing arm 221. The end of the swing arm 221 is provided with a suction cup 224, and the end of the swing arm 221 relative to the suction cup 224 is connected to a drive On the frame 222, the drive frame 222 is connected to a pneumatic cylinder 223, through which the pneumatic cylinder 223 can drive the drive frame 222 to rotate and drive the swing arm 221 to swing up and down. As shown in FIGS. 9 and 10, the shearing device 23 includes a scissors 231, a link mechanism 232, a link driving device 234, a sliding platform 235, and a propulsion cylinder 236. The connecting rod mechanism 232 and the connecting rod driving device 234 are arranged on the sliding platform 235, and the sliding platform 235 can be pushed by the propulsion air cylinder 236 to move. The end of the link mechanism 232 has a clamping portion 233 for clamping the scissors 231, and the link mechanism 232 is connected to the link driving device 234 with respect to one end of the scissors 231. The link driving device 234 can drive the link mechanism 232 to drive the scissors 231 to produce a cutting action.

When the feeding carousel 21 moves the sealed bag 51 to the feeding position, the suction cup 224 of the dumping device 22 can adsorb the side of the bottom of the sealed bag 51, and then swing up through the swing arm 221, so that the bottom of the sealed bag 51 is raised. The sealed bag is in a dumped state with the bottom higher than the upper part, and then the upper end of the sealed bag 51 is cut through the scissors 231 of the shearing device 23, so that the upper end of the sealed bag 51 is separated from the clamping device 212 of the rotating arm 211, and It becomes an open shape, so that the absorbent sanitary product in the sealed bag 51 falls into the inlet end 101 of the washing device 10.

As shown in FIGS. 3 to 7, the washing device 10 mainly includes: a washing drum 11 and a driving device 16. As shown in Figures 3 and 4, the washing drum 11 is in the shape of a barrel, the washing drum 11 has a central axis C, and the washing device 10 can define an inlet at both ends of the central axis C 101 and an outlet end 102. The washing drum 11 is connected to a feed hopper 12 on the side facing the inlet end 101, and is connected to a discharge guide plate 13 on the side facing the outlet end 102. The washing drum 11 is composed of an outer tube 111 and an inner tube 112, wherein the outer tube 111 is a closed drum, and the inner tube 112 is made of a mesh plate with punching holes, and the inner tube 112 A plurality of flexure plates 118 are provided on the inner side to agitate the water flow. The washing drum 11 is connected to the driving device 16 and can be driven by the driving device 16 to rotate around the central axis C. In this embodiment, the driving device 16 includes a motor 161, a belt 162, and a driven pulley 163 arranged at one end of the washing drum 11. The belt 162 is connected between the driven pulley 163 and the motor 161, so that The motor 161 can drive the washing drum 11 to rotate.

As shown in FIG. 4, the washing drum 11 has a rear partition 113, at least one middle partition 114 and a front partition 115. The front and rear ends of the washing drum 11 are closed through the rear partition 113 and the front partition 115, and the inner space of the washing drum 11 is at least divided into a first washing chamber 116 through the middle partition 114 And a second cleaning chamber 117, and the first cleaning chamber 116 is close to the inlet end 101, and the second cleaning chamber 117 is close to the outlet end 102.

In this embodiment, the rear partition 113 is provided with a feed port 1131, and the feed port 1131 is connected to the feed hopper 12 so that the absorbent sanitary products 50 falling into the feed hopper 12 can enter from the feed port 1131 The inside of the drum 11 is cleaned. The intermediate partition 114 is located between the first cleaning chamber 116 and the second cleaning chamber 117, and a first outlet 1141 is provided on the intermediate partition 114, so that the first cleaning chamber 116 can be connected to the first cleaning chamber 116 through the first outlet 1141. Two cleaning room 117. The front partition 115 is provided with a second outlet 1151 so that the second cleaning chamber 117 can communicate to the outside of the outlet end 102 via the second outlet 1151. In particular, in the preferred embodiment of the present invention, the positions of the first outlet 1141 and the second outlet 1151 can be arranged above the central axis C of the washing drum 11, so that the first cleaning chamber 116 And the washing water contained in the second washing chamber 117 does not easily overflow to the first outlet 1141 or the second outlet 1151.

The first washing chamber 116 and the second washing chamber 117 can respectively contain washing water, and the rotation of the washing drum 11 causes the washing water in the first washing chamber 116 and the second washing chamber 117 to flow, thereby reducing 50 wash off absorbent hygiene products. When the washing procedure is implemented, the absorbent sanitary product 50 to be processed is subjected to the first washing step in the first washing chamber 116, and then moved to the second washing chamber 117 to perform the second washing step, and then from the The second outlet 1151 is moved out to the outside of the outlet end 102, and then the cleaned absorbent sanitary product 50 enters the pulverizing device 30 for a pulverization process.

In particular, the first cleaning chamber 116 and the second cleaning chamber 117 can be added with different types of detergents, disinfectants or cleaning aids respectively to achieve different cleaning effects. For example, the washing water in the first washing chamber 116 can be added with detergent or solvent for washing urine, feces or blood as needed to improve the washing effect, while the second washing chamber 117 can be added with bleaching Additives such as chemicals and bactericides, or introduce ozone into the washing water to enhance the efficacy of disinfection and sterilization.

In order to make the washing drum 11 after each washing step is completed, the absorbent sanitary product 50 washed in the first washing chamber 116 can be moved to the second washing chamber 117, and the second washing chamber 117 is completely clean. The sanitary product 50 can move to the outside of the outlet end 102. Therefore, the present invention is provided with a first conveying reel 14 and a second conveying reel above the inside of the first cleaning chamber 116 and the second cleaning chamber 117, respectively 15. It is used to move the cleaned absorbent sanitary product 50 from the first cleaning chamber 116 to the second cleaning chamber 117 each time the cleaning procedure is completed, or to move the absorbent sanitary product 50 in the second cleaning chamber 117 Move to the outside of the outlet end 102 of the washing drum 11.

In this embodiment, the structures of the first conveying reel 14 and the second conveying reel 15 are the same. Therefore, in this specification and the drawings, only the first conveying reel 14 is taken as an example to illustrate the structure. As shown in FIGS. 4 and 5, the front and rear ends of the first transfer reel 14 are respectively connected to the rear partition 113 and the middle partition 114, so that the first transfer reel 14 is positioned in the first cleaning chamber 116 The first conveying reel 14 can rotate with the washing drum 11 with the central axis C as the center. The first transfer reel 14 is made of sheet metal or plastic. The side of the first transfer reel 14 facing the top of the washing drum 11 forms a notch 141, and the inner side of the first transfer reel 14 An arc-shaped guide surface 142 inclined from top to bottom in a direction toward the first outlet 1141 is formed, and the side of the first conveying reel 14 and the arc-shaped guide surface 142 facing the outlet end 102 is connected to the first outlet 1141 .

As shown in FIG. 6, when the washing drum 11 performs the washing program, the washing drum 11 is driven by the driving device 16, and can reciprocate within a predetermined angle range θ with the center axis C as the center, and when During the reciprocating rotation of the washing drum 11 within the predetermined angular range θ, the first conveying drum 14 is maintained above the water level L of the washing water inside the first washing chamber 116, so that the first washing The washing water in the chamber 116 and the absorbent sanitary product 50 to be washed will not be agitated by the first conveying drum 14, and the washing water will not overflow into the second washing chamber 117 from the first outlet 1141.

As shown in Figure 7, when the cleaning drum 11 completes the cleaning process, the cleaning drum 11 can rotate along a predetermined rotation direction d1 with the central axis C as the center, and drive the first transfer drum 14 to rotate to the first cleaning After the lower part of the chamber 116, it returns to a position above the first cleaning chamber 116. During this process, the absorbent sanitary product 50 in the first cleaning chamber 116 will enter the inside of the first transfer roll 14 from the opening 141 of the first transfer roll 14 and be driven by the first transfer roll 14 Above the first cleaning chamber 116. And when the first conveying reel 14 returns to the position above the first cleaning chamber 116, because the arc-shaped guide surface 142 of the first conveying reel 14 has an inclination, the absorbent sanitary product 50 is guided along the arc. The surface 142 slides to the first outlet 1141, and further falls from the first outlet 1141 into the second cleaning chamber 117 to perform the second cleaning process.

The second transfer reel 15 is arranged above the second cleaning chamber 117. The second transfer reel 15 is arranged between the intermediate partition 114 and the front partition 115. The second transfer reel 15 also has an opening and an arc-shaped guide surface, and the arc-shaped guide of the second transfer reel 15 The front end of the lead surface 142 is connected to the second outlet 1151. In this embodiment, the structure and operating principle of the second conveying reel 15 are similar to those of the first conveying reel 14, so the description will not be repeated in this specification.

Through the first transfer reel 14 and the second transfer reel 15, it is possible to automatically move the absorbent sanitary products 50 in the first cleaning chamber 116 to the second cleaning chamber 117 each time the cleaning step is completed. And move the absorbent sanitary product 50 cleaned in the second cleaning chamber 117 to the outside of the outlet end 102 of the washing drum 11, and make the cleaned absorbent sanitary product 50 pass through the discharge guide plate 13 is guided into the crushing device 30 to perform the crushing process.

As shown in Figures 1 and 2, the crushing device 30 used in the present invention is set close to the outlet end 102 of the washing device 10. The crushing device 30 includes: a crusher 31, a crusher feed hopper 32, and a press Drop off 33. The pulverizer feed hopper 32 is provided at the inlet of the pulverizer 31 and connected to the outlet end of the washing device 10, so that the absorbent sanitary products 50 discharged through the discharge guide plate 13 can pass through the pulverization The machine feed hopper 32 enters the pulverizer 31 for pulverization. The pressure feeder 33 is connected between the outlet of the pulverizer 31 and the separation and recovery device 40 to transport the fragments of absorbent sanitary products to the Separation and recovery device 40.

As shown in Figures 1, 2 and 11 and 12, in this embodiment, the separation and recovery device 40 includes a slurry drum 41, a separation tank 42, a suspended matter collection device 43, a fiber collection device 45, And a sediment collection device 44. The separation tank body 42 is a water tank. The two ends of the separation tank body 42 can define a first end 421 and a second end 422. The inside of the separation tank body 42 can contain the water body and the fragments of the absorbent sanitary products 50, and the separation tank body The water body and the fragments of absorbent sanitary products inside 42 flow from the first end 421 to the second end 422.

The slurry cylinder 41 is accommodated at the first end 421 of the separation tank body 42. A feed inlet 413 is provided on a side surface of the bottom of the slurry cylinder 41, a top outlet 412 is provided above, and a slurry cylinder 41 is provided with a Vortex baffle 411. The feed inlet 1131 of the slurry cylinder is connected to the pulverizing device 30 through a pipeline. The fragments of the absorbent sanitary products pulverized by the pulverizing device 30 enter the slurry cylinder 41 through the slurry cylinder inlet 413, and are driven by the high-speed water flow to make The water flow mixed with the fragment material forms a vortex water flow in the slurry cylinder 41. The direction of the slurry barrel inlet 413 is arranged to be substantially parallel to the tangential direction of the slurry barrel 41, so that the water flow entrained with the absorbent sanitary product fragments can enter the slurry approximately along the tangent direction of the slurry barrel. In the slurry drum 41, a swirling water flow is formed in the slurry drum 41 through the guidance of the vortex baffle 411, and then flows into the separation tank 42 from the top outlet 412 of the slurry drum 41.

In this embodiment, the separation and recovery device 40 also has an air compressor 414. The air compressor 414 is connected to the bottom of the slurry cylinder 41, and compressed air can be injected into the bottom of the slurry cylinder 41, which can increase the scattering of fragments. The effect of separation in the slurry drum 41.

The separation tank body 42 is a long and narrow water tank. The separation tank body 42 is designed to have a length of more than three times the width and a depth of more than twice the width, so that the water and debris materials in the separation tank 42 have enough time to recover from The first end 421 flows to the second end 422, so that materials with different specific gravities have enough time to settle and separate, and the separation tank 42 has a sufficient depth, so that the separated different materials can have a clear boundary.

Generally speaking, the constituent materials of absorbent sanitary products vary according to their specific gravity. They generally include low-density polymer films or polymer fiber materials (such as polyethylene film, non-woven fibers), fibrous materials (such as pulp fibers, cotton Fiber), and high specific gravity water-absorbing polymer materials (such as: sodium polyacrylate). As shown in Figure 12, due to the different specific gravity of various materials, in the water body of the separation tank 42, the polymer film or polymer fiber material with the lowest specific gravity will form a polymer suspension 502 floating on the water surface, and the fiber material Since the specific gravity is close to water after water absorption, the fiber material dispersed in the water body will be suspended, and the water-absorbing polymer material has the heaviest specific gravity, so it can settle at the bottom of the separation tank 42 to form a polymer precipitate 504.

The separation and recovery device 40 respectively penetrates the suspended matter collection device 43, the fiber collection device 45, and the sediment collection device 44 to collect the polymer suspended matter, fiber material, and polymer sediment on the water surface of the separation tank 42. The suspended matter collecting device 43 is arranged above the separation tank 42. In this embodiment, the suspended matter collecting device 43 includes: a water repellent drum 431, a conveyor belt device 432, a plurality of collecting blades 433, and a conveyor 434, And a suspended matter collection tank 435. The water repellent drum 431 is arranged above the separation tank 42 and is partially immersed in the water inside the separation tank 42. There are multiple blades on the outside of the water repellent drum 431. When the water repellent drum 431 rotates, the water can be directed toward The direction of the second end 422 of the separation tank 42 is flipped to form a water flow. The conveyor belt device 432 is arranged above the separation tank 42 and at the rear side of the water repellent drum 431. A plurality of collecting blades 433 are arranged on the conveyor belt device 432 and can rotate with the conveyor belt device 432. The conveyor belt device 432 is partially immersed under the water surface of the separation tank body 42, and the collection blades are driven to rotate through the conveyor belt device 432, which can remove the polymer suspension floating on the water surface of the separation tank body 42 and face the separation tank body 42. The direction of the second end is transmitted. The conveyor 434 and the suspended matter collection tank 435 are arranged below the end of the conveyor belt device 432, so that the polymer suspended matter 502 falling from the end of the conveyor belt device 432 can fall on the conveyor 434 and be transported by the conveyor 434. The polymer suspension 502 is collected in the suspension collection tank 435.

The sediment collection device 44 is disposed at the bottom of the separation tank 42. In this embodiment, the sediment collection device 44 includes a screw conveyor 441 and a sediment collection tank 443. The screw conveying device 441 is arranged at the bottom of the separation tank 42. The screw conveying device 441 has a cylindrical outer shell 4411 and a screw 4412 accommodated in the outer shell 4411. A bottom slot 424 is provided at the bottom of the separation tank 42 corresponding to the outer shell 4411. The outer shell 4411 of the screw conveyor 441 is connected with the bottom slot 424, so that the polymer precipitate 504 deposited on the bottom of the separation tank 42 can be removed from The bottom slot 424 enters the outer shell 4411. An outlet pipe 442 is provided at the end of the outer shell 4411, and the outlet pipe 442 is connected to a sediment collection tank 443 for collecting the polymer sediment 504 discharged from the screw conveyor 441.

The fiber collection device 45 is arranged at the second end of the separation tank 42. In this embodiment, the fiber collection device includes: an outlet pipe 451, a first filter device 452, a dehydration device 453, a second filter device 454, and a water circulation Pump 455. The outlet pipe 451 is connected to a water outlet 423 at the second end of the separation tank 42. The height of the water outlet 423 is between the suspended matter collection device 43 and the sediment collection device 44, and the separation tank body 42 can be located at the water outlet 423. A water level control board (not shown in the figure) is further provided to control the water level of the separation tank 42. After the water body of the separation tank 42 flows out from the water outlet 423, it is transported to the first filter device 452 through the outlet pipe 451. The first filter device 452 filters the fibrous material 503 in the water stream and puts it into a dehydration device 453 to collect the The fiber material 503 is dehydrated to reduce the weight of the fiber material. The water discharged from the first filter device 452 and the dehydration device 453 is sent to the second filter device 454. After the fiber remaining in the water is filtered by the second filter device 454, the water discharged from the second filter device 454 is sent to the second filter device 454. It is repeatedly used in the slurry tank 41 or in the washing device 10.

In particular, the outlet of the water circulation pump 455 can be connected to the slurry cylinder inlet 413 and the second cleaning chamber 117 of the washing drum 11 through a pipeline, and when the absorbent sanitary product recovery processing system 1 of the present invention performs the absorbent sanitary product During the process of separating and recovering the debris material, the water circulation pump 455 is arranged to deliver the water discharged from the second filter device 454 to the slurry barrel inlet 413, and inject it into the slurry barrel inlet 413 in the manner of high-pressure water flow to make the debris The material is driven by the high-speed water flow to form a swirling water flow. Moreover, when the washing device 10 performs the washing procedure of the next batch of absorbent sanitary products, it can be controlled by the control valve to guide the water output from the water circulation pump 455 to the second washing chamber of the washing drum 11 Repeated use within 117.

The present invention also provides a method for recycling and processing absorbent sanitary products. As shown in FIG. 13, it is a flowchart of the method for recycling and processing absorbent sanitary products used in the present invention. The recycling method of the present invention mainly includes: waste preparation procedures S10, a washing procedure S20, a crushing procedure S30, and a separation and recovery procedure S40.

The waste preparation procedure S10 is to pack the used absorbent sanitary products 50 in the aforementioned sealed bag 51, so that the absorbent sanitary products 50 to be processed are sealed to avoid environmental pollution. Then, the packaged absorbent sanitary product 50 is transported to a processing place where the absorbent sanitary product recycling system 10 of the present invention is installed for processing. In particular, the waste preparation procedure S10 of the present invention can be performed in places where a large amount of absorbent hygiene products such as diapers and nursing pads are used in medical institutions, nursing homes, long-term care centers, and confinement centers, so as to absorb waste. The sexual hygiene products are kept in a sealed state when they are transported to the disposal site to avoid the odor of the absorbent hygiene products from emitting and affecting environmental hygiene.

As shown in FIG. 14, the cleaning program S20 includes: a feeding step S21, a first cleaning step S22, a second cleaning step S23, and a conveying step S24. The feeding step S21 is to move the sealed bag 51 containing the absorbent sanitary products to be processed to the inlet end 101 of the washing device 10 through the feeding conveying device 20, and destroy the sealed bag to make the absorbent sanitary products to be processed Fall into the washing drum 11. The first washing step S22 is performed in the first washing chamber 116 of the washing drum 11. The function of the first washing step S22 is to preliminarily remove pollutants such as urine and feces adsorbed by absorbent sanitary products, and The second washing step S23 is used to further wash the absorbent sanitary products, sterilize and bleach them. In a preferred embodiment of the present invention, the first cleaning step S22 and the second cleaning step S23 can add suitable detergents, bleaching agents, bactericides, ozone and other additives as required to enhance the cleaning effect . When the first washing step S22 and the second washing step S23 are completed in each washing procedure S20, the conveying step S24 is performed through the first conveying reel 14 and the second conveying reel 15 of the washing device 10. In the conveying step S24, the first conveying reel 14 and the second conveying reel 15 are rotated by the washing drum 11 to move the absorbent sanitary products 50 in the first cleaning chamber 116 and the second cleaning chamber 117 synchronously , So that the absorbent sanitary product 50 that has completed the first cleaning step S22 is transferred to the second cleaning chamber 117 for the second cleaning step S23, and the absorbent sanitary product that has completed the second cleaning step S23 is simultaneously removed from the first cleaning step S23. The second cleaning chamber 17 is moved out to the outside of the cleaning device 10, and then the crushing process S30 is implemented.

The pulverization process S30 is to pulverize the cleaned absorbent hygiene product into fragmented materials through the pulverizing device 30. The pulverized fragment material is transported to the separation and recovery device 40 to implement the separation and recovery procedure.

As shown in FIG. 15, the separation and recovery procedure S40 includes: a slurrying step S41, a separation and sedimentation step S42, a suspended matter collection step S43, a fiber collection step S44, and a sediment collection step S45. The slurry dispersion step S41 is to pass through the slurry cylinder 41 to cause the water flow shape entrained with the fragment material of the absorbent sanitary product to swirl, so that the fragment material is separated. In particular, when the slurry dispersion step S41 is implemented, the compressed air can be injected into the slurry cylinder to enhance the swirling speed of the water flow and achieve a better slurry dispersion effect.

Separation and sedimentation step S42 is to introduce absorbent sanitary products into the separation tank 42 so that the fragments are divided into polymer suspensions 502 floating on the water surface due to different material specific gravity, and fibers suspended in the water of the separation tank 42 The material 503 and the polymer precipitate 504 deposited on the bottom of the separation tank 42. In more detail, the polymer suspension 502 includes the polymer film or non-woven fabric in the absorbent sanitary product fragments, and the fibrous material 503 includes the pulp fiber or cotton fiber in the absorbent sanitary product fragments. The polymer precipitate contains water-absorbing polymer materials. And when the separation and precipitation step S42 is implemented, the pH of the water in the separation tank 42 can be controlled above pH 8, and the pH of the water in the separation tank 42 can be controlled within the range of pH 9-11. , So that the water-absorbing polymer material can be condensed into a gel, so that the water-absorbing polymer material can be easily precipitated and easily collected.

Then through the suspended matter collection device 43, the fiber collection device 45, and the sediment collection device 44, the suspended matter collection step S43, the fiber collection step S44, and the sediment collection step S45 are implemented to collect the polymer suspended matter. , Fibrous material 503 and polymer precipitate 504. In particular, in the embodiment of the present invention, the suspended matter collection step S43, the fiber collection step S44, and the sediment collection step S45 can be implemented simultaneously or in stages. For example, in this embodiment, the suspended matter collection step S43, fiber The collection step S44 and the sediment collection step S45 are implemented in the same separation tank body 10, so they can be regarded as implementing the above three steps simultaneously. However, in other embodiments, the suspended matter collection step S43 and the fiber collection step S44 , And the sediment collection step S45 can be arranged in different water tanks, and the implementation sequence can also be adjusted according to actual needs.

The device and method of the present invention can be used to treat a large number of diapers, nursing pads or other absorbent sanitary products. The beneficial effects of the present invention are mainly as follows: 1. The present invention packs the absorbent sanitary product 50 to be processed in a sealed bag 51, so it can prevent the absorbent sanitary product 50 from emitting odor during transportation and waiting for processing. In addition, the present invention uses an automated feeding and conveying device 20 to put the absorbent sanitary products 50 in the sealed bag 51 into the washing device 10, and does not require manpower to perform the work of unsealing the sealed bag 51, so it can prevent the operator from contacting contaminants , And provide work quality. 2. The recycling process of the present invention is to first wash the absorbent sanitary products to be processed through the washing device 10, and then implement the crushing process and the sedimentation separation process, so it can avoid the mixing of debris materials and pollutants, and This makes subsequent processing difficult, and the cleanliness of the recycled fiber is not good, and it cannot be recycled. 3. The cleaning device 10 of the present invention automatically moves the absorbent sanitary products in the first cleaning chamber 116 to the second cleaning through the rotation of the cleaning drum 11 and the first and second conveying reels 14, 15 The chamber 117 performs the second washing step, or moves the absorbent sanitary product 50 cleaned in the second washing chamber 117 to the outside of the washing device 10, so it does not require labor to carry and save labor. 4. In the separation and recovery procedure S40 of the present invention, the suspended matter collection step S43, the fiber collection step S44, and the sediment collection step S45 are performed through the automated suspended matter collection device 43, fiber collection device 45, and sediment collection device 44, so Further save labor.

The content disclosed above is only a preferred and feasible embodiment of the present invention, and does not limit the scope of the patent application of the present invention. Therefore, all equivalent technical changes made using the description and schematic content of the present invention are included in the application of the present invention. Within the scope of the patent.

1: Absorbent sanitary product recycling and processing system 10: Washing device 101: Inlet end 102: Outlet end 11: Washing drum 111: Outer cylinder 112: Inner cylinder 113: Rear partition 1131: Feed inlet 114: Middle partition 1141: first outlet 115: front partition 1151: second outlet 116: first cleaning chamber 117: second cleaning chamber 118: deflector 12: feed hopper 13: discharge guide plate 14: first transfer reel 141: Opening 142: Arc-shaped guide surface 15: Second transfer reel 16: Drive device 161: Motor 162: Belt 163: Driven pulley 20: Feed conveyor 21: Feed turntable 211: Swing arm 212: Clamping device 22: dumping device 221: swing arm 222: drive frame 223: pneumatic cylinder 224: suction cup 23: shearing device 231: scissors 232: link mechanism 233: clamping part 234: link driving device 235: sliding platform 236: Propelling air cylinder 30: Crushing device 31: Crusher 32: Crusher feed hopper 33: Compressor 40: Separation and recovery device 41: Dispersion drum 411: Vortex baffle 412: Top outlet 413: Dispersion Cylinder inlet 414: air compressor 42: separation tank 421: first end 422: second end 423: water outlet 424: bottom slot 43: suspended matter collection device 431: water repellent drum 432: conveyor belt device 433: collection Blade 434: conveyor 435: suspended matter collection tank 44: sediment collection device 441: screw conveyor device 4411: outer shell 4412: screw 442: outlet pipe 443: sediment collection tank 45: fiber collection device 451: outlet pipe 452 : First filtration device 453: Dewatering device 454: Second filtration device 455: Water circulation pump 46: Partition 50: Absorbent sanitary products 501: Fragment material 502: Polymer suspension 503: Fibrous material 504: Polymer sediment 51 : Sealed bag 52: Tether S1: Absorbent sanitary product recycling method S10: Waste preparation procedure S20: Washing procedure S21: Feeding step S22: First washing step S23: Second washing step S24: Transporting step S30 : Crushing program S40: Separation and recovery program S41: Pulp step S42: Separation and sedimentation step S43: Suspended matter collection step S44: Fiber collection step S45: Sediment collection step C: Central axis d1: predetermined rotation direction θ: predetermined angle range L : Water level height

Fig. 1 is a schematic diagram of a three-dimensional assembly of a recycling and processing system for absorbent sanitary products of the present invention.

Figure 2 is a schematic cross-sectional view of the assembly of the absorbent sanitary product recycling system of the present invention.

Figure 3 is a three-dimensional schematic diagram of the washing drum used in the present invention.

Figure 4 is a three-dimensional cross-sectional schematic diagram of the washing drum used in the present invention.

Fig. 5 is a partial combined perspective view of the washing drum of the present invention including the first conveying drum and the partition plate.

Fig. 6 is a schematic diagram of the action of the washing drum of the present invention when executing a washing program.

Fig. 7 is a schematic diagram of the action of the washing drum of the present invention when the transfer program is executed.

Fig. 8 is a three-dimensional schematic diagram of the feeding and conveying device used in the present invention.

Fig. 9 is a partial enlarged perspective view of the feeding and conveying device of the present invention.

Fig. 10 is a partially enlarged three-dimensional schematic diagram of a cutting device adopted by the present invention.

Figure 11 is a three-dimensional schematic diagram of a precipitation separation device used in the present invention.

Figure 12 is a schematic cross-sectional view of the sedimentation separation device of the present invention.

Fig. 13 is a schematic flow chart of the method for recycling and processing absorbent sanitary products of the present invention.

Fig. 14 is a schematic flow diagram of the steps of the washing procedure of the present invention.

Figure 15 is a schematic diagram of the steps of the separation and recovery procedure of the present invention.

1: Absorbent hygiene product recycling system

10: Washing device

101: Import side

102: Exit

11: Wash the drum

1151: Second Exit

12: Feed hopper

13: Discharge guide plate

20: Feeding and conveying device

21: Feeding turntable

22: dumping device

30: Crushing device

31: Crusher

32: Shredder feed hopper

40: Separation and recovery device

414: Air compressor

42: Separation tank

43: Suspended matter collection device

44: sediment collection device

45: Fiber collection device

51: sealed bag

Claims (21)

A recycling and processing system for absorbent sanitary products for recycling materials in used absorbent sanitary products, including: a washing device, a crushing device, and a separation and recovery device. The absorbent sanitary product to be processed After the article is cleaned by the washing device, and then crushed by the crushing device, the material of the absorbent sanitary article after crushing is separated and recovered by the separation and recovery device; wherein, the washing The device has a washing drum and a driving device. The washing drum is driven by the driving device and can rotate around the central axis of the washing drum. The washing drum is defined at both ends of the central axis. An inlet end and an outlet end; the inner space of the washing drum is at least divided into a first cleaning chamber and a second cleaning chamber, the first cleaning chamber is close to the inlet end, and the second cleaning chamber Close to the outlet end, the first cleaning chamber has a first outlet connected to the second cleaning chamber, and the second cleaning chamber has a second outlet connected to the outside of the outlet end; the first The washing room and the second washing room contain washing water, and the absorbent sanitary products to be treated enter the first washing room through the inlet end of the washing drum, and then enter the second washing room. After the cleaning chamber is cleaned again, it is discharged from the outlet end; a first conveying reel and a second conveying reel are respectively arranged above the inside of the first cleaning chamber and the second cleaning chamber. The inner sides of a conveying reel and the second conveying reel respectively form an arc-shaped guide surface inclined from top to bottom and facing the first outlet and the second outlet, the first conveying reel and The side of the second transfer reel facing the outlet end is respectively connected to the first outlet and the second outlet, and the first transfer reel and the second transfer reel face the washing drum A notch is respectively formed on the upper side; the first conveying reel and the second conveying reel can rotate with the washing drum around the central axis to move the first cleaning chamber The absorbent sanitary product after washing is conveyed to the second washing chamber through the first outlet, and the absorbent sanitary product after washing in the second washing chamber is conveyed to the second washing chamber through the second outlet The outside of the outlet end. The absorbent sanitary product recycling and processing system described in item 1 of the scope of patent application, wherein the washing drum is driven by the driving device when the washing drum is in the process of washing the absorbent sanitary product, and With the central axis as the center, it reciprocally rotates within a predetermined angle range, and when the washing drum reciprocates within the predetermined angle range, the first transfer reel and the second transfer reel remain Above the water level of the washing water in the first washing chamber and the second washing chamber. According to the absorbent sanitary product recycling system described in item 2 of the scope of patent application, when the washing drum completes the procedure of washing the absorbent sanitary product, the first transfer reel and the second transfer roll The cylinder can be rotated to below the first cleaning chamber and the second cleaning chamber along the central axis along a predetermined rotation direction, and then rotated to above the first cleaning chamber and the second cleaning chamber , And drive the absorbent sanitary products in the first cleaning chamber and the second cleaning chamber to above the first cleaning chamber and the second cleaning chamber, and make the first cleaning chamber The absorbent sanitary product slides along the arc-shaped guide surface of the first conveying reel to move from the first outlet into the second washing chamber, and the absorbent in the second washing chamber The sanitary products slide along the arc-shaped guide surface of the second conveying reel and move out from the second outlet to the outside of the outlet end. The absorbent sanitary product recycling and processing system described in item 1 of the scope of patent application, wherein the washing drum includes an outer cylinder and an inner cylinder arranged inside the outer cylinder, and the inner surface of the inner cylinder is provided with multiple A plurality of flexure plates can rotate together with the washing drum. As described in the first item of the scope of patent application, the recycling and processing system for absorbent sanitary products, wherein the crushing device further includes a crusher, a crusher feed hopper, and a dewatering device; wherein the crusher feed hopper is provided At the entrance of the pulverizer and connected to the outlet end of the washing device, the absorbent sanitary products cleaned by the washing device enter the pulverizer through the feed hopper of the pulverizer to be pulverized, The dewatering device is connected between the outlet of the pulverizer and the separation and recovery device, and is used for dewatering the absorbent sanitary products pulverized by the pulverizer and transporting to the separation and recovery device. The absorbent sanitary product recycling system described in the fifth scope of the patent application, wherein the separation and recycling device includes: a separation tank, a slurry drum, a suspended matter collection device, a fiber collection device, and a sediment Collection device; wherein the two ends of the separation tank can define a first end and a second end, the slurry tank is accommodated in the first end of the separation tank, and a side surface of the bottom of the slurry tank A feed port is provided, and the top of the slurry cylinder is provided with a top outlet. The feed port is connected to the crushing device. After the fragments of the absorbent sanitary product crushed by the crushing device are mixed with water, The water flow enters the slurry cylinder through the feed port, and the water flow with the fragments of the absorbent sanitary product enters the slurry cylinder substantially along the tangential direction of the slurry cylinder to form The vortex water flow then flows into the separation tank from the top outlet of the slurry cylinder, so that the absorbent sanitary product fragments are separated into the upper layer of the water flow floating on the separation tank due to the water vortex and the specific gravity of the material The polymer suspension, and the fiber material mixed in the water flow of the separation tank, and the polymer sediment deposited on the bottom of the separation tank; the suspension collection device is arranged in the separation tank Above, used to collect polymer suspended solids floating on the inner liquid surface of the separation tank; the sediment collection device is arranged at the bottom of the separation tank to collect the sediment on the bottom of the separation tank The polymer sediment; the second end of the separation tank is provided with a water outlet, the height of the water outlet is between the suspended matter collection device and the sediment collection device, the water outlet is connected to the In the fiber collection device, the water flow in the separation tank flows out through the water outlet and then passes through the fiber collection device, thereby collecting the fiber material in the water flow. According to the absorbent sanitary product recovery processing system described in item 6 of the scope of patent application, the separation and recovery device further includes an air compressor connected to the feed port of the slurry cylinder for Inject compressed air into the feed port. The absorbent sanitary product recovery and processing system described in item 6 of the scope of patent application, wherein the suspended matter collection device is arranged above the separation tank, and the suspended matter collection device includes a conveyor belt device and a suspended matter A collection tank, the conveyor belt device is provided with a plurality of collection blades, the conveyor belt device is partially immersed under the water surface of the water body of the separation tank, and the conveyor belt device can drive a plurality of the collection blades to rotate, and The polymer suspended matter floating on the surface of the water body of the separation tank is picked up and collected into the suspended matter collection tank. The absorbent sanitary product recovery and treatment system described in item 6 of the scope of patent application, wherein the sediment collection device is arranged at the bottom of the separation tank, and the sediment collection device has a screw conveyor and a sediment In the collection tank, an opening is provided at the bottom of the separation tank body to connect with the screw conveying device, and the polymer precipitate is conveyed to the sediment collection tank through the screw conveying device. As described in item 6 of the scope of patent application, the absorbent sanitary product recycling and processing system, wherein the fiber collection device includes at least one filter device and a dehydration device, and the filter device is used to discharge the separation tank body from the water flow The fibrous material is collected by filtration, and the dehydration device is used for dehydrating the fibrous material collected by the filtration device. According to the first item of the scope of patent application, the absorbent sanitary product recycling and processing system further includes a feed conveying device, the feed conveying device including a feed turntable, a dumping device, and a shearing device; The feed carousel has a plurality of rotating arms, and a clamping device is provided at the end of each rotating arm. Through the clamping device, a sealed bag filled with absorbent sanitary products to be processed can be clamped, and the sealed bag After moving to a feeding position adjacent to the inlet end of the cleaning device, the pouring device causes the sealed bag to become an inclined state; the splicing device is adjacent to the feeding position, and the cutting device can The sealed bag is destroyed, so that the absorbent sanitary article in the sealed bag falls into the inlet end of the washing device. A method for recycling absorbent sanitary products is used for recycling materials of absorbent sanitary products to be processed. The method for recycling absorbent sanitary products includes: a washing procedure, a crushing procedure, and a separation and recycling procedure; The absorbent sanitary products to be processed are first washed out of contaminants through the washing process, and then the absorbent sanitary products to be processed are crushed into fragments through the crushing process, and then the absorbent sanitary products are removed from the absorbent sanitary products through the separation and recovery process. Polymer suspended solids, fibrous materials, and polymer precipitates are separated from the debris material; wherein the washing procedure at least includes a first washing step and a second washing step; the separation and recovery procedure at least includes: a bulk A slurry step, a separation and sedimentation step, a suspended matter collection step, a fiber collection step, and a sediment collection step; wherein the slurry step is to feed the crushed absorbent sanitary fragments together with water into a slurry drum , And make the water flow entraining the fragments of the absorbent sanitary product form a swirling flow in the slurry cylinder, so that the materials in the fragments of the absorbent sanitary product are evenly dispersed in the water flow; the sedimentation separation step is to make The water stream entrained with the fragments of the absorbent sanitary product enters a separation tank, and in the separation tank, the fragments of the absorbent sanitary product are formed floating on the water surface of the separation tank due to the different specific gravity Polymer suspension, the fiber material suspended in the water of the separation tank, and the polymer sediment deposited on the bottom of the separation tank; then the suspension collection step, the fiber collection step, and the The sediment collection step separately collects the polymer suspension, fiber material, and the polymer sediment. As described in item 12 of the scope of patent application, the method for recycling and processing absorbent hygiene products, wherein the first washing step is performed in a first washing chamber of a washing drum, and the second washing step is a first washing The cleaning drum is carried out in the second cleaning room; the cleaning procedure further includes a conveying step, for each time the cleaning drum completes the first cleaning step and the second cleaning step, the first cleaning room The absorbent sanitary products in the second cleaning chamber are moved to the second cleaning step, and the absorbent sanitary products in the second cleaning chamber are moved from the second cleaning chamber to the washing drum at the same time Outside. The method for recycling and processing absorbent sanitary products as described in item 13 of the scope of patent application, wherein the transfer step is performed through a first transfer reel provided in the first cleaning chamber and a second cleaning chamber. The second transfer reel is implemented synchronously. As described in item 14 of the scope of patent application, the method for recycling and processing of absorbent sanitary products further includes a waste preparation procedure. The waste preparation procedure is to seal the absorbent sanitary products to be processed in multiple sealed bags, And then transported to the treatment site where the absorbent sanitary product recovery treatment method is implemented; the washing procedure further includes a feeding step, and the feeding step is to fill each of the absorbent sanitary products through a feeding and conveying device The sealed bag of supplies is moved to a feeding position close to an inlet end of the washing drum, and the absorbent sanitary products in the sealed bag are poured into the inlet end of the washing drum after the sealed bag is broken. As described in the 12th item of the scope of patent application, the method for recycling and processing absorbent sanitary products, wherein in the step of dispersing the slurry, compressed air is also injected into the pipeline of the inlet of the slurry cylinder through an air compressor, To increase the speed of the swirling water flow. As described in item 12 of the scope of patent application, the pH value of the water in the separation tank 42 is controlled to be above pH 8. As described in item 17 of the scope of patent application, the recovery treatment method for absorbent sanitary products, wherein the pH value of the water in the separation tank 42 is between PH9 and PH11. As described in item 12 of the scope of patent application, the method for recycling and processing absorbent sanitary products, wherein the suspended matter collection step is implemented through a suspended matter collection device arranged above the separation tank, and the suspended matter collection device includes A conveyor belt device and a suspended matter collection tank, the conveyor belt device is provided with a plurality of collection blades, the conveyor belt device is partially immersed under the water surface of the separation tank body, and the conveyor belt device can drive a plurality of The collecting blade rotates, and the polymer suspended solids floating on the surface of the water body of the separation tank are picked up and collected into the suspended solids collecting tank. As described in item 12 of the scope of patent application, the method for recycling and processing absorbent sanitary products, wherein the sediment collection step is implemented through a sediment collection device arranged at the bottom of the separation tank, the sediment collection device having A screw conveyor and a sediment collection tank are provided at the bottom of the separation tank body with an opening connected to the screw conveyor, and the polymer precipitate is transferred to the sediment collection tank through the screw conveyor. According to the 12th item of the scope of patent application, the method for recycling and processing absorbent sanitary products, wherein the fiber collection step is implemented through a fiber collection device, and the fiber collection device includes at least one filtering device and a dewatering device. The device is connected with a water outlet of the separation tank body to filter and collect the fiber material in the water flow discharged from the separation tank body, and the dehydration device is used to dehydrate the fiber material collected by the filter device.

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