CN118434932A - Fiber raw material processing system and operation method thereof - Google Patents

Abstract

The invention provides a fiber raw material processing system and an operation method thereof, wherein the fiber raw material processing system is composed of a cutting module, a slurry dispersing module, a salt slurry processing module, a pressure screen, a separating module, an inclined screen module, an extruder and a recycling module which are connected in series. The fiber raw material processing system is operated by processing an absorbent article such as a diaper or a sanitary napkin, and the like, and the fiber raw material is retained and made into fluff fiber raw material through the purification and separation steps of the respective modules in the fiber raw material processing system.

Description

Fiber raw material processing system and operation method thereof

Technical Field

The invention relates to a fiber raw material processing system and an operation method thereof, in particular to a system and a processing method thereof applied to the waste treatment of various absorptive articles, which can decompose, purify and recycle the waste by the system of the invention so as to achieve the effect of effectively reutilizing the waste.

Background

Absorbent articles such as diapers and sanitary napkins have been widely used in modern life. In users of various age groups, there is a possibility of using the absorbent article according to different demands. With the development of consumer, lifestyle and industrial manufacturing capabilities of people, absorbent articles are increasingly becoming more expensive, lighter, clean and sanitary, and disposable.

However, even if the absorbent articles have the above-mentioned excellent characteristics, since the absorbent articles contain both the nonwoven fabric which contacts the skin material, the absorbent layer which is extremely strong in the ability to absorb the liquid, the outer layer of the plastic waterproof layer which has the ability to prevent water, and the dirt which is wrapped in the absorbent articles, the constituent components are likely to be chemical materials which are not easily decomposed and also have the ability to absorb the liquid, and when discarded after use, the complexity of waste disposal is increased.

The components of the absorbent sanitary products which most affect the absorption capacity, rewet capacity and softness: fluff pulp, which plays a vital role, is more compressible and more diffusive in order to better meet the product characteristics of sanitary products in terms of usage. Fluff pulp is mainly produced from needle wood as a fiber raw material, and is characterized by longer fibers and the strength of the fibers is influenced by the fibers per se, and the fibers have a large influence on the service performance.

In addition, since the density of the liquid-absorbing layer of the sanitary article is an important indicator in production, the low density increases the liquid absorption rate and the total absorption amount, but decreases the liquid diffusion rate and increases the back loss, while the high density contributes to the liquid diffusion, so that if the principle of a large-gap material on the liquid-absorbing layer and a small-gap material under the liquid-absorbing layer is adopted for the multi-layer design of the liquid-absorbing layer in the production process, the liquid can be effectively diffused and absorbed into the small-gap material, and the back loss can be reduced.

Therefore, the sanitary article comprises the multifunctional liquid-absorbing composite material which is composed of the fluffy liquid-absorbing layer, the liquid-transferring diffusion layer and the high-density liquid-storing layer due to the high special requirement of the sanitary article on the product, wherein the water-absorbing polymer can absorb a large amount of water in a humid environment or a water body, and the colloidal sticky substance is generated, so that the material is difficult to purify and separate, a certain difficulty is provided for a waste treatment procedure, and a certain precision is required for a decomposition procedure. Accordingly, the specialist in the art is required to develop a disposal system dedicated to decomposing, separating and recycling the waste of the absorbent sanitary product and the fluff fiber raw material thereof.

Disclosure of Invention

In order to solve the problems in the prior art, the invention aims to provide a fiber raw material treatment system and an application method thereof, wherein the used absorbent sanitary product is decomposed and recovered by the system, and the system completely separates out the fiber raw material by utilizing the special method of each module, so that the raw material can be regenerated into other available new products, and the effect of effectively recycling waste is achieved.

On the premise of the device, the invention provides a fiber raw material processing system which is formed by sequentially combining a cutting module, a slurry dispersing module, a salt slurry processing module, a pressure screen, a separating module, an inclined screen module, an extruder and a recycling module. The slurry dispersing module comprises at least one turbulence piece, a first rotor and at least two cutters. Wherein, the pressure screen comprises a second rotor, a first mesh and a slag discharge port. The inclined screen module comprises a ramp, a second mesh and a water outlet. The recovery module is connected with the extruder, the inclined screen module and the slurry dispersing module at the same time and is used for recovering filtered water from the extruder and the inclined screen module to the slurry dispersing module for reprocessing.

The invention further provides a method for operating a fiber raw material processing system, comprising the steps of: (a) providing a fibrous material treatment system as previously described; (B) Placing an absorbent article in a cutting module, and performing primary cutting on the absorbent article; (C) Conveying the primarily cut absorbent articles to a slurry dispersing module for rotation and crushing and separating, and retaining an absorbent reclaimed material; (D) Delivering the absorbent recovery to a salt slurry treatment module to separate a primary fiber; (E) Passing the primary fiber through a pressure screen, separating out secondary fiber by the pressure screen, and discharging an impurity at the same time; (F) Passing the secondary fiber through a separation module, removing a residue of the secondary fiber by utilizing centrifugal force, and outputting a fluff fiber raw material prototype; (G) Transferring the fluff fiber raw material embryonic form to an inclined screen module for filtering, and preserving a fluff fiber raw material primary product; (H) The initial product of the fluff fiber raw material is transported to an extruder for extrusion dehydration to obtain the fluff fiber raw material.

The foregoing has outlined rather broadly the several features of the present invention in order that the detailed description of the invention may be better understood. The summary of the invention is not an extensive overview of the invention, and is intended to neither identify key or critical elements of the invention nor delineate the scope of the invention, but merely to present several concepts of the invention in a simplified manner.

Drawings

FIG. 1 is a schematic diagram of the composition of an embodiment of a fiber feedstock processing system according to the present invention;

FIG. 2 is a schematic diagram of an embodiment of a dispersion module in a fiber feedstock processing system according to the present invention;

FIG. 3 is a schematic diagram of an embodiment of a salt slurry treatment module in a fiber feedstock treatment system of the present invention;

FIG. 4 is a flow chart of a method of operation of a fiber feedstock processing system embodying the present invention.

Detailed Description

So that the manner in which the above recited features and advantages of the present invention can be understood in detail, a more particular description of the invention, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings.

Referring to fig. 1, fig. 1 is a fiber raw material processing system 1, which is formed by sequentially and serially combining a cutting module 2, a slurry dispersing module 3, a salt slurry processing module 4, a pressure screen 5, a separating module 6, an inclined screen module 7, an extruder 8 and a recycling module 9. The slurry dispersing module 3 includes a spoiler 31, a first rotor 32 and a cutter 33, and the pressure screen 5 includes a second rotor 51, a first mesh 52 and a slag discharging opening 53. And the diagonal screen module 7 comprises a ramp, a second mesh and a drain. The first mesh 52 is a straight slit mesh; the second mesh is composed of a plurality of holes with different sizes.

The recovery module 9 is connected to the extruder 8, the inclined screen module 7 and the slurry dispersing module 3 simultaneously, and is used for recovering filtered water from the extruder 8 and the inclined screen module 7 to the slurry dispersing module 3 for reprocessing or other purposes. The main function of the present embodiment is to systematically perform a continuous process on the used absorbent sanitary product, and design a process with the maximum recycling capability and the maximum recycling treatment capability according to the specific method of each module to effectively decompose, separate and recycle the absorbent sanitary product, especially for the specificity of the fluff fiber raw material F, through multiple separation of the modules in series, so as to achieve the effect of effectively recycling the waste.

First, the fiber raw material processing system 1 of the present embodiment starts the coarse processing of the raw waste by the cutting module 2, and the cutting module 2 is connected to the slurry dispersing module 3. In this embodiment, the cutting module 2 is mainly used to primarily cut and break up various material structures of the absorbent article, so that the content therein is easy to be uniformly separated in the dispersing module 3 to increase the dispersing efficiency of various materials when the dispersing operation is performed in the following dispersing module 3. The pulp dispersing module 3 is connected to the cutting module 2, so that the cut recycled waste is conveyed into the pulp dispersing module 3, the effect of breaking and separating is achieved under the stirring of the high-torque cutter head, and the fluff fibers are scattered without aggregation and are automatically conveyed into the subsequent process.

Regarding the internal structure of the slurry dispersing module 3 in this embodiment, please refer to fig. 2 further. The slurry dispersing module 3 comprises a spoiler 31, a first rotor 32 and a cutter 33. In this embodiment, the turbulence member 31 is a plurality of plate-like structures, and is disposed in the turbulence member along with the increase of the number, so that the turbulence member can generate vortex to press the water flow downward, and when the dispersion module 3 rotates, the waste is not only pressed into the cutter 33 disposed at the bottom of the dispersion module 3 by the vortex of the water flow, so that the waste collides with the cutter 33 and is prevented from forming a sphere, and the effect of breaking and dispersing is achieved.

In this embodiment, the cutters 33 are spiral or cutterhead, and are arranged in two symmetrical positions at the bottom of the slurry dispersing module 3, and any cutters 33 and their arrangement are all within the scope of the present invention.

Further, the plate-like structures are symmetrically arranged on the inner wall of the slurry dispersing module 3, and the purpose of the plate-like structures arranged on the inner wall of the cylinder at equal intervals is to maintain the balance state when the cylinder rotates.

In the prior art, the absorbent articles are crushed by a chopper and a crusher to drop out the contents, but most of the absorbent articles are easily crushed by soft matters, which causes difficulty in subsequent separation, so that the hydraulic pulp dispersing part is arranged inside the pulp dispersing module 3, the first rotor 32, which is a vertical rotor in the embodiment, is designed, and a variable frequency rotating speed motor is further arranged, so that the absorbent articles are directly scratched and torn in the barrel by directly utilizing the hydraulic stirring and cutting in the pulp dispersing module 3, the fluff pulp in the barrel flows out, and the concentration of the slurry is monitored, so as to achieve the optimal separation and pulp dispersing effect.

In this embodiment, the slurry dispersing module 3 is further provided with a gravity type liquid level controller, and the water amount and the system are controlled by the weight conversion liquid level to achieve the original preset controllable target. Specifically, when the water level reaches the set value, the system automatically performs feeding, the first rotor 32 rotates at a set rotation speed and time, and water is automatically added to the set value after the rotation is stopped. At this time, the plastic sheet, which is initially decomposed and broken, floats on the water surface, and the remaining absorbent articles (including fluff pulp and high-molecular water-absorbing salts) settle to the bottom of the tank. In order to avoid that the released plastic sheets are easy to be knotted and rolled into balls to prevent the subsequent purification process of the fiber raw materials, the invention also needs to provide an opening for discharging the plastic sheets in the slurry dispersing module 3.

The waste passing through the size dispersing module 3 is then transported to the next stage and is carried out in the salt size treatment module 4. The salt slurry treatment module 4 of this embodiment is connected with the slurry dispersing module 3. In this embodiment, the function of the salt slurry treatment module 4 is mainly to perform the density layering screening effect on the crushed absorbent articles treated by the slurry dispersing module 3. Specifically, the salt slurry treatment module 4 of this embodiment receives the absorbent reclaimed material crushed by the slurry dispersing module 3. In this example, the absorbent reclaimed material has most of the characteristics of liquid absorption and density. Thus, the absorbent recovery of this embodiment will naturally settle in the salt slurry treatment module 4 due to the density stratification principle.

Specifically, the salt slurry treatment module 4 of the present embodiment further includes a buffer tank 41, a settling tank 42, and a slurry storage tank 43. Wherein the buffer tank 41 is connected with the slurry dispersing module 3 for receiving the absorbent reclaimed materials. The settling tank 42 is connected to the buffer tank 41 for separating at least one water-absorbing polymer having a higher density, such as polyacrylate, from the absorbent reclaimed material.

The stock tank 43 is connected to the settling tank 42 and is mainly used for receiving the less dense primary fibers in the absorbent recovery. In other words, as shown in fig. 3, the salt slurry treatment module 4 is mainly used to separate the absorbent polymer and fluff pulp, wherein the fluff pulp has a specific gravity of about 0.98 and the absorbent polymer has a specific gravity of about 1.4-1.8, the absorbent polymer with a higher specific gravity is retained in the settling tank 42 of the bottom layer, and the primary fiber with a lower specific gravity is carried to the slurry storage tank 43 along with the water flow.

In addition, the slurry storage tank 43 may be further provided with a concentration meter for measuring the concentration of the retained fluff pulp, and further, the salt slurry treatment module 4 of the present invention can correspondingly adjust the slurry inlet pressure parameter and the slurry concentration parameter according to the slurry inlet condition, so as to adjust the flow rate and the distribution degree of the absorbent recovery in the salt slurry treatment module 4.

After the separation of fluff pulp and water-absorbing polymers in the salt slurry treatment module 4, the remaining fluff pulp is transported from the slurry storage tank 43 to the pressure screen 5 of the next process. In the present embodiment, the pressure screen 5 comprises a second rotor 51, a first mesh 52, a slag discharge opening 53 or a combination thereof. Wherein the second rotor 51 is of a special rotor construction that is different from the first rotor 32. The first mesh 52 is a straight slit type mesh through which the fluff pulp separated in the foregoing steps is filtered to remove unnecessary impurities, such as: the threads or the previous steps of the diaper do not exclude thorough plastic fragments.

Further, the mesh size can be designed as a screen mesh, and the mesh is 10-30 mm for separating plastic fragments (PE, PP). Further, the unnecessary impurities are then discharged from the slag discharge opening 53. Alternatively, a pressure set point is preset at the outlet of the pressure screen 5, and the pressure may be applied by providing a stainless steel cover of variable weight to form a pair of internal pressures or any other means, so long as the fluff pulp is pressed and passed through the first mesh 52.

After filtration through the pressure screen 5 of the preceding step, the filtered fluff pulp is fed to a separation module 6, which further purifies and separates the fluff pulp using centrifugal force. Wherein the separation module 6 comprises a first centrifuge 61, a dilution tank 62, a second centrifuge 63, or a combination thereof. At this stage in this example, two separations were used to ensure that fluff pulp was free of other water-absorbing salts. The first centrifuge 61 and the second centrifuge 63 may be series cyclone separators, and the fluff pulp is purified by centrifugal separation through two-stage centrifugation in the series cyclone separators. This step filters out residues other than fluff pulp for playback to the aforesaid salt slurry treatment module 4 for water-absorbent salt recovery. In addition, the number of the centrifuges in the separation module 6 can be adjusted according to practical situations, and the invention is not limited.

At this stage, the fluff pulp in the present examples has completed the removal of plastic chips or water-absorbing salts in the process described above, followed by further purification to the inclined screen module 7. In this embodiment, the diagonal screen module 7 comprises a ramp, a second mesh, a drain, or a combination thereof. In this embodiment, the ramp is designed to allow fluff pulp to gravity distribute down the ramp, and to filter the fluff pulp through the second mesh holes provided on the ramp to different degrees, so as to effectively remove only residual water or impurities. The second mesh design is different from the first mesh 52, and may be composed of a plurality of meshes with different sizes, and the mesh size is 0.325-0.725 mm. The water filtered through the second mesh is recovered to the recovery module 9 through the drain.

Finally, in order to ensure that the final target fluff fibre raw material F has been completely dewatered, since most of the water has been filtered out at the inclined screen module 7, and the fluff fibre pulp fraction is rolled into the extruder 8, the extruder 8 outlet section is provided with a variable weight stainless steel cover as a pair of internal pressure wringings, the pressure can be from 1 kg to 8 kg, and a preferred setting is 4 kg of internal pressure wringing. In short, the fluff pulp is dewatered by the extruder 8, and the residual moisture is recovered by the recovery module 9.

In this embodiment, the recovery module 9 is used to recover the sewage from the inclined screen module 7 and the extruder 8; or excess liquid in the dispersion module 3. The recovery module 9 may be a treatment tank/bucket containing a plurality of carriers. Each support may be a porous structure support such as zeolite, activated carbon, or the like, a filter or framework (Scaffold) for supporting at least one decomposing microorganism. Since the recycling module 9 of the present embodiment is used to recycle the treatment liquid from the absorbent article, it will naturally contain a lot of dirt from the human body attached to the broken absorbent article.

Accordingly, the decomposing microorganism is mainly used for treating organic or inorganic pollutants in the recovered liquid so as to achieve the effect of purifying the recovered liquid. The recycled liquid entering the slurry dispersing module 3 is cleaner through a continuous circulation mode. In addition, the operation efficiency of the slurry dispersing module 3 can be improved.

The present invention further provides a method for implementing the above-mentioned fiber raw material processing system 1, wherein a preferred embodiment is shown in FIG. 4. The operation method of the fiber raw material processing system 1 comprises the following steps: (a) providing a fibrous raw material treatment system 1 as previously described; (B) Placing an absorbent article in a cutting module 2, and performing a primary cutting on the absorbent article; (C) Conveying the primarily cut absorbent articles to a slurry dispersing module 3 for rotation and crushing separation, and retaining an absorbent reclaimed material; (D) Delivering the absorbent recovery to a salt slurry treatment module 4 to separate a primary fiber; (E) Passing the primary fiber through a pressure screen 5, separating out secondary fiber by the pressure screen 5, and discharging an impurity at the same time; (F) Passing the secondary fiber through a separation module 6, removing a residue of the secondary fiber by utilizing centrifugal force, and outputting a fluff fiber raw material prototype; (G) Transferring the fluff fiber raw material embryonic form to an inclined screen module 7 for filtering, and preserving a fluff fiber raw material primary product; (H) The raw fluff fiber material is transported to an extruder 8 for extrusion and dehydration to produce a fluff fiber material F.

In this embodiment, referring to fig. 4, first, in step (a), the fiber raw material processing system 1 as described in fig. 1 is prepared. Next, as in step (B), the absorbent article to be fed into the fiber raw material processing system 1 of the present invention may be a diaper, a personal hygiene product such as a nursing pad or a sanitary napkin, and the present invention is not limited thereto. Wherein the main substances of the absorbent articles comprise fluff fibers, water-absorbing polymers, plastic fragments and the like. Fluff fibers are separated and purified by the fiber raw material processing system 1 of the present invention. Firstly, after an absorbent article to be treated, such as a diaper or a sanitary napkin, is subjected to a preliminary division by the cutting module 2 of the present invention, the internal substances are easily separated at a later stage.

With continued reference to fig. 4, step (C) conveys the initially cut absorbent article to a pulp dispersing module 3 for rotation and hydraulic separation to retain an absorbent reclaimed material and continue step (D). The cut absorbent article is then fed into the size dispersing module 3 via a crown block or any other means, rotated therein and broken and separated under agitation by a high torque cutter head, and the fluff fibers are dispersed without aggregation and automatically fed into a subsequent process. During this step, the dispersion module 3 achieves the removal of the preliminary plastic and at the same time retains the absorbent recovery.

Further, the preliminary plastic is a waterproof layer having waterproof capability with respect to the waterproof material of the absorbent article, such as a diaper shell, and the absorbent recovery material may be fluff fiber, water-absorbing polymer or a combination thereof, any other absorbent article that excludes waterproof material while retaining other absorbent articles is within the scope. In addition, the rotation speed and the water level in the process of breaking and separating are automatically controlled, and the time course can also be automatically controlled and adjusted. It is easy to say that in this embodiment, the intermittent slurry discharge can be adopted at this stage to avoid the blockage of the slurry discharge port caused by continuous slurry discharge, and the preliminary plastic such as plastic sheet is finally discharged to the outside from the bottom plastic discharge port.

The slurry dispersing module 3 further includes a first rotor 32 vertically disposed in the center of the slurry dispersing module 3 for preventing the absorbent article from being integrated into a sphere after the absorbent article is crushed and separated. In addition, the slurry dispersing module 3 further comprises at least one turbulence piece 31, so that at least one vortex is generated in the slurry dispersing module in the crushing and separating process, and the phenomenon of downward water flow pressure is generated, so that the treated waste can directly contact with a cutter 33 arranged at the bottom, and the crushing and separating efficiency of the absorbent article is accelerated.

Also referring to fig. 4, in this embodiment, in step (D), the absorbent recovery is sent to a salt slurry treatment module 4 to separate a primary fiber. Further, the primary fiber is the result of the purification of this step, and is primarily responsible for the primary separation from the water-absorbing polymer, such as a water-absorbing salt, contained in the absorbent recovery. First, the absorbent recovery is brought to the first buffer in the salt slurry treatment module 4: the buffer tank 41 temporarily stops the movement of the absorbent reclaimed material in the buffer tank 41 to retain other possible impurities in order to suspend the step from the slurry dispersing module 3.

Then, the absorbent recovery material is subjected to gravity sedimentation to separate out the water-absorbing polymer with higher density except the primary fiber from the absorbent recovery material by the sedimentation tank 42 further included in the salt slurry treatment module 4, so that the water-absorbing polymer is retained in the sedimentation tank 42 for other treatments. The salt slurry treatment module 4 further comprises a slurry tank 43, in order to allow the primary fibers having a low density to continue to move with the water flow through the settling tank 42, the dope is moved to the slurry tank 43 to retain the separated primary fibers, and the step (E) is continued.

After the primary fiber and the water-absorbent polymer are separated by the salt slurry treatment module 4, in step (E), the primary fiber is passed through a pressure screen 5, and the secondary fiber is separated by the pressure screen 5, and the impurities are discharged. Further, the primary fibers are treated by the second rotor 51 and the first mesh 52, which are further included in the pressure screen 5, to retain the secondary fibers. The primary fiber passes through a slag discharge port 53 further included in the pressure screen 5 to remove the impurities other than the secondary fiber. In other words, the pressure screen 5 is provided for the purpose of removing impurities of the primary fibers, which may be salts or other substances that are not thoroughly absorbed by the previous step.

Since the removal of the water-absorbent polymer from the whole by gravity has a certain limit, the step (F) is to pass the secondary fibers through the separation module 6 to remove the residues of the secondary fibers by centrifugal force and output the fluff fiber raw material embryonic form. In this embodiment, the "fluff raw material embryonic form" is the fluff fiber body purified of residues, which may be water-absorbing salts or other substances other than fluff fibers.

The separation module 6 further includes a first centrifuge 61, a dilution tank 62, a second centrifuge 63, or a combination thereof, that is, in this embodiment, two centrifuges are used to ensure that the secondary fiber has no residual water-absorbing salt, and water is supplemented through the dilution tank 62 after the first centrifugation, so as to enlarge the volume and reduce the concentration, and the residual water-absorbing salt can be more accurately separated out after the next centrifugation. Therefore, according to the present embodiment, the centrifugation times can be adjusted according to the requirement, which is not in the scope of the present invention, and the dilution tank 62 is provided for supplementing water according to the freely adjusted centrifugation times. In this embodiment, the separation module 6 is further connected to the salt slurry treatment module 4, so as to send the residue back to the salt slurry treatment module 4 for treating the separated water-absorbent polymer.

Finally, in the steps (G) and (H), the primary procedure is to dry the raw fluff fiber material preform by dehydration. The fluff fiber raw material embryonic form is firstly conveyed to a inclined screen module 7 for filtering and is preserved into fluff fiber raw material primary products. Next, the raw fluff fiber product is fed to an extruder 8 to be extruded and dehydrated to obtain a fluff fiber raw material F.

Wherein step (G) the fluff fiber raw material embryonic form is filtered through a ramp, a second mesh, further included in the inclined screen module 7. Furthermore, the second mesh is composed of holes with different sizes, the size of the mesh can be properly adjusted according to the current purification requirement and purpose, and the second mesh is arranged on the ramp and can assist the pile fiber embryonic form to screen out sewage by using a gravity mode. The sewage filtered and extruded in the step (G) and the step (H) is recovered by a recovery module 9, and the sewage source is mainly the water filtered by the extrusion dehydration of the water outlet contained in the inclined screen module 7 in the step (G) and the extruder 8 in the step (H), and is further returned to the slurry dispersing module 3 for recycling the steps (C) to (H).

In summary, the present invention aims to provide a fiber raw material processing system 1 and an application method thereof, in which the used absorbent sanitary products are decomposed and recovered by the system, and the system completely separates out the fiber raw materials therein by using the special method of each module, so that the raw materials can be regenerated into other available new products, and the effect of effectively recycling the waste is achieved.

Wherein, considering the complexity of the absorptive sanitary material, a plurality of modules are arranged to separate and purify according to the gravity, density and material size of the content. The system of the invention mainly aims at separating fluff fiber, which is a light, low-density and water-absorbing material, so that the separation and purification process must be carried out in more steps relative to other materials according to the characteristics.

In addition, it is considered that in the separation process, in the treatment steps (F) to (G) after the secondary fibers are purified, huge mechanical forces must be avoided, for example, a multi-centrifugation method is used and a water supplementing step is used instead of a one-time shearing strength, so as to ensure that the high-purity fluff fiber raw material F is finally obtained.

However, the foregoing description is only a preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, but is intended to be covered by the appended claims and their descriptions.

Claims (20)

1. A fiber raw material processing system, comprising:

A cutting module;

The slurry dispersing module is connected with the cutting module and comprises at least one turbulence piece, a first rotor and at least two cutters;

The salt slurry treatment module is connected with the slurry dispersing module;

The pressure screen is connected with the salt slurry treatment module and comprises a second rotor, a first mesh and a slag discharge port;

a separation module connected to the pressure screen;

The inclined screen module is connected with the separation module and comprises a ramp, a second mesh and a water outlet;

an extruder connected to the inclined screen module; and

And the recycling module is connected with the extruder, the inclined screen module and the slurry dispersing module.

2. The fiber raw material processing system of claim 1, wherein the salt slurry processing module further comprises a buffer tank, a settling tank, a slurry storage tank, or a combination thereof.

3. The fiber feedstock processing system according to claim 1, wherein the separation module further comprises a first centrifuge, a dilution tank, a second centrifuge, or a combination thereof.

4. The fiber raw material processing system according to claim 1, wherein the at least one turbulence member is a turbulence plate and is disposed inside the slurry dispersing module.

5. The fiber feedstock processing system according to claim 1, wherein the first rotor is a cylindrical rotor.

6. The fiber raw material processing system of claim 1, wherein the at least two cutters are disposed at a bottom of the dispersion module.

7. The fiber raw material processing system of claim 1, wherein the first mesh is a straight slit mesh and the second mesh is comprised of a plurality of holes of different sizes.

8. A method of operating a fiber feedstock processing system, comprising:

(A) Providing a fiber raw material processing system according to claim 1;

(B) Placing an absorbent article in a cutting module, and performing a primary cutting on the absorbent article;

(C) Conveying the primarily cut absorbent articles to a slurry dispersing module for rotation and crushing and separating, and retaining an absorbent reclaimed material;

(D) Delivering the absorbent recovery to a salt slurry treatment module to separate a primary fiber;

(E) Passing the primary fiber through a pressure screen, separating out secondary fiber by the pressure screen, and discharging an impurity at the same time;

(F) Passing the secondary fiber through a separation module, removing a residue of the secondary fiber by utilizing centrifugal force, and outputting a fluff fiber raw material prototype;

(G) Transferring the fluff fiber raw material embryonic form to an inclined screen module for filtering, and preserving a fluff fiber raw material primary product; and

(H) The initial product of the fluff fiber raw material is transported to an extruder for extrusion dehydration to obtain the fluff fiber raw material.

9. The method of claim 8, wherein the breaking and separating steps are performed by the size module to remove a preliminary plastic.

10. The method of claim 8, wherein the slurry module of step (C) further comprises a first rotor to prevent the absorbent article from agglomerating into a ball after the breaking and separating.

11. The method of claim 8, wherein the dispersion module of step (C) further comprises at least one turbulence element configured to generate at least one vortex when the dispersion module rotates to generate the water flow down-pressing phenomenon.

12. The method of claim 8, wherein the size module of step (C) further comprises at least two cutters to accelerate the breaking separation of the absorbent article.

13. The method of claim 8, wherein the salt slurry treatment module of step (D) further comprises a settling tank for settling out by gravity a water-absorbing polymer other than the primary fibers contained in the absorbent recovery.

14. The method of claim 8, wherein step (D) the salt slurry treatment module further comprises a slurry tank, the separated primary fibers moving with water to the slurry tank, and step (E) being continued.

15. The method of claim 8, wherein the primary fibers of step (E) are retained after being processed through a second rotor, a first mesh or a combination thereof included in the pressure screen.

16. The method of claim 15, wherein the primary fibers of step (E) are passed through a slag discharge port further included in the pressure screen to remove the impurities other than the secondary fibers.

17. The method of claim 8, wherein the separation module of step (F) further comprises a first centrifuge, a dilution tank, a second centrifuge, or a combination thereof, to ensure that the secondary fibers are free of residual salts.

18. The method of claim 8, wherein step (F) the separation module is further coupled to the salt slurry treatment module, and the residue is returned to the salt slurry treatment module for removal of a water-absorbing polymer.

19. The method of claim 8, wherein step (G) the fluff fiber raw stock embryonic form is filtered through a ramp, a second mesh, further included in the diagonal screen module.

20. The method of claim 8, wherein a recycling module is used to recycle water from a drain port included in the inclined screen module in step (G) and water filtered by the press dewatering in step (H), and further recycled to the slurry dispersion module for recycling from step (C) to step (H).