JP6958932B2 - Absorber treatment method, absorber dehydration method, absorber treatment device, absorber dehydrator - Google Patents

Description

The present invention relates to a method and an apparatus used for treating an article containing an absorbent polymer such as disposable disposable diapers (hereinafter referred to as "absorbent"). More specifically, the absorber is separated into a crushed product and a treated effluent. And related to the methods and equipment used to process.

Disposable disposable diapers are widely used in the field of nursing care and childcare. Unlike cloth diapers, which must be washed each time they are used, disposable paper diapers do not require washing, which contributes to reducing the burden on people involved in nursing care and childcare.

Disposable disposable diapers are single-use and must be properly disposed of after use. Used paper diapers (used paper diapers) may be processed by incineration or landfill, but in recent years, a dedicated processing device may be used in consideration of the impact on the environment.

Conventionally, as a processing device for used paper diapers, there is known a device in which a used paper diaper is dropped by a rotating drum and the disposable paper diaper is disassembled by the impact of the drop (Patent Documents 1 and 2). According to the processing apparatus of Patent Documents 1 and 2, used paper diapers can be separated into crushed material and processed effluent and processed.

Japanese Unexamined Patent Publication No. 2003-09169 Japanese Unexamined Patent Publication No. 2003-190928

However, since the conventional processing apparatus has many processing steps, one processing cycle is long, and there is room for improvement in terms of efficient processing. In addition, maintenance is laborious because the structure is complicated, such as a heater for heating or retaining the heat of the treatment liquid and a plurality of liquid level detectors (sensors) for detecting the position of the liquid level. It takes.

The present invention has been made in view of the above circumstances, and the problem to be solved is a method and an apparatus that can be used for processing various absorbers such as paper omelets, and efficient processing with few processing steps. an absorber process side Ho及beauty absorber dehydration method capable, structures excellent in simplicity and maintenance is that the size reduction to provide an absorber process instrumentation置及beauty absorber dehydrator possible.

[Absorbent treatment method]
Absorber processing method of the present invention is a processing method of the absorber, the steps of crushing the absorber crushing means, a step of reducing the volume of the absorbent polymer contained in the absorbent body by the treatment liquid, to reduce The step of discharging the crushed material and the treated effluent of the absorber that have undergone the process into an upwardly expanding dehydration tank having an opening at the top, and the process of rotating the dewatering tank containing the crushed material and the treated effluent at the first speed. Te, a step you discharge processing waste liquid containing a processing liquid discharge in the crushed material in the dewatering tank to dehydration tub outside the drainage outlet provided in the dewatering tank, and the dewatering tank first speed It is a method including a step of rotating the crushed material in a different second speed and discharging the crushed material in the dehydration tank to the outside of the dehydration tank through an opening above the dehydration tank.

[Absorbent crushing method]
Absorber crushing method in this gun includes a step of reducing a crushing method of the absorber, the steps of crushing the absorber crushing means, the volume of absorbent polymer contained in the absorbent body by the treatment liquid, the absorbent body It is a method including a step of discharging the crushed material and the treated effluent of the above to the outside.

[Absorber dehydration method]
The absorber dehydration method of the present invention is a absorber dehydration method, in which an upwardly expanding dehydration tank having an opening above containing crushed material and treated drainage of the absorber is rotated at a first speed. As a result , the process of discharging the treated effluent including the treated effluent in the crushed material in the dehydration tank to the outside of the dehydration tank from the drainage discharge port provided in the dehydration tank and the second step in which the dehydration tank is different from the first speed. This method is provided with a step of discharging the crushed material in the dehydration tank from the opening above the dehydration tank to the outside of the dehydration tank by rotating at the speed of.

[Absorbent processing device]
The absorber processing device of the present invention is a device for treating an absorber, and includes a crushing device for crushing the absorber and a dehydrating device for discharging crushed material and treated effluent crushed by the crushing device. .. The crushing device includes a case in which the treatment liquid is stored and a crushing means for crushing the absorber charged into the case. The dehydrator includes an upwardly expanding dehydration tank having an opening above which crushed material discharged from the case and processed drainage enters, and a dehydration tank driving means for driving the dehydration tank. The case is provided with a discharge port for discharging the crushed material in the case and the treated drainage to the outside of the case. The dehydration tank is rotated by the dehydration tank driving means at least at a first speed and a second speed different from the first speed. The dehydration tank is provided with a drainage outlet for draining the treated drainage. In this absorber treatment device, the absorber in the case is crushed by the crushing means, and the volume of the absorbent polymer contained in the absorber is reduced by the treatment liquid in the case, and the crushed product is crushed by the crushing means. And the treated effluent is discharged from the discharge port to the dehydration tank of the dehydrator, and when the dehydration tank containing the crushed material and the treated effluent rotates at the first speed, the crushed material in the dehydration tank is treated. When the treated effluent containing the effluent is discharged from the effluent discharge port to the outside of the dehydration tank and the dehydration tub rotates at the second speed after the treated effluent is discharged, the crushed material in the dehydration tank is discharged. It is configured to be discharged to the outside of the dehydration tank through the opening above the dehydration tank.

[Absorbent crusher]
Absorber crushing device in this gun is a crushing device of the absorber, and a case where the processing liquid is stored, a conveyor having a crushing device for crushing the absorber is introduced into the case to drive the conveyor It is equipped with a conveyor driving means. The case is provided with a discharge port for discharging crushed material and processed drainage to the outside of the case. In this absorber crushing device, when the conveyor is rotated by the conveyor driving means, the absorber in the case is crushed by the crusher, and the volume of the absorbent polymer contained in the absorber is reduced by the treatment liquid in the case. When the crushing treatment of the absorber and the reduction treatment of the absorbent polymer are completed, the crushed material crushed by the crusher and the treated effluent are discharged from the discharge port to the outside of the case.

[Absorbent dehydrator]
The absorber dehydrator of the present invention is an absorber dehydrator , and is an upwardly expanding dehydration tank having an opening above which crushed material and treated drainage of the absorber enter, and a dehydration tank for driving the dehydration tank. It is equipped with a driving means. The dehydration tank is provided with a drainage outlet for draining the treated drainage. In this absorber dehydrator, when the dehydration tank is rotated at the first speed by the dehydration tank driving means , the treated drainage containing the treated drainage in the crushed material in the dehydration tank is discharged from the drainage discharge port to the outside of the dehydration tank. is discharged, so that the drying tub by dehydrating tub driving means is rotated at a second speed different from the first velocity, crushed dewatering tank is discharged from the upper opening of the dewatering tank outside the dewatering tank It is configured.

Absorber treated side Ho及beauty absorber dehydration process of the present invention, less processing steps, since a single processing cycle is short, it is possible to perform efficient processing of the absorber. Further, the absorber processing instrumentation置及beauty absorber dewatering device of the present invention, since the structure is trivial, excellent maintenance properties, it is possible to reduce the size of the apparatus.

The perspective view which shows an example of the absorber processing apparatus (diaper processing apparatus) of this invention. The perspective view which shows an example of the internal structure of a crusher. The plan view which shows an example of the internal structure of a crusher. The side view which shows an example of the internal structure of a crusher. The side view which shows an example of the internal structure of a dehydrator. The plan view which shows an example of the internal structure of a dehydrator. The flowchart which shows an example of the absorber processing method (diaper processing method) of this invention. The explanatory view which shows the flow of the treated effluent and the crushed material when the used paper diaper is processed by the diaper processing apparatus of FIG.

(Embodiment)
An example of an embodiment of the present invention will be described with reference to the drawings. The absorbent body to be treated in the present application includes various articles provided with an absorbent polymer (high polymer) such as disposable paper diapers and sanitary napkins. Here, the case where the absorbent body is a disposable paper diaper is taken as an example. do. In the present application, the "crushed material" includes non-woven fabrics, vinyls, absorbent polymers, tapes, filths, etc. that make up disposable paper diapers (absorbents), and the "treatment effluent" is the treatment used for the treatment. Contains liquids such as liquids and urine.

As an example, the absorber processing device shown in FIG. 1 (hereinafter referred to as “diaper processing device”) includes a crushing device 10, a dehydrating device 20, and a dust box 30. The crushing device 10 is mounted on the uppermost stage of the rack 40, the dehydrating device 20 is mounted on the middle stage of the rack 40, and the dust box 30 is mounted on the lower stage of the rack 40.

The crushing device 10 is a device that crushes used paper diapers and reduces the absorbent polymer contained in the used paper diapers. The term "reduction" as used herein means to discharge the treated effluent from the absorbent polymer that has absorbed the treated liquor to reduce the volume thereof.

As shown in FIG. 2, the crushing device 10 of this embodiment includes a case 11 in which a processing liquid is stored, a conveyor 12 installed in the case 11, a movable crusher 13 provided in the conveyor 12, and a conveyor. It is provided with a conveyor driving means for driving the twelve.

As shown in FIGS. 2 to 4, the case 11 includes a box-shaped case body 11a having an opening on the upper surface side, and a lid 11b for opening and closing the opening. The case body 11a includes a bottom surface 11c, a front wall 11d, a rear wall 11e, a left side wall 11f, and a right side wall 11g. The shape of the case body 11a is an example, and other shapes may be used.

The bottom surface 11c of the case body 11a is provided with a discharge port 11h (see FIG. 8) for discharging crushed material and processed drainage to the outside of the case body 11a. A discharge pipe 11i is projected downward from the peripheral edge of the discharge port 11h so that the crushed material and the treatment liquid discharged from the discharge port 11h pass through the discharge pipe 11i and move to the dehydrator 20. In this embodiment, the discharge pipe 11i is opened by opening a valve (not shown) provided on the discharge pipe 11i.

The lid 11b is a plate material having a size capable of closing the opening on the upper surface of the case body 11a, and a loading port 11j for loading used paper diapers is provided near the center. A hood 11k for holding the inserted used paper diaper is provided on the peripheral edge of the insertion port 11j.

The hood 11k includes a guide portion 11m that inclines toward the front side in the forward rotation direction of the conveyor 12. By providing the hood 11k provided with the guide portion 11m, the used paper diapers that move by the rotation of the conveyor 12 are surely guided into the case 11.

On the inner surface of the lid 11b, a fixed crusher 14 for crushing used paper diapers in cooperation with a movable crusher 13 provided on the conveyor 12 is provided. The fixed crusher 14 of this embodiment is a trapezoidal plate material. The fixed crusher 14 is a set of five pieces, and two sets are provided at intervals in the front-rear direction. The five pieces of each set are provided at intervals in the width direction of the lid 11b. The fixed crusher 14 can also be provided on the inner surface of the case body 11a. When a sufficient crushing force can be secured only by the movable crushing tool 13, the number of fixed crushing tools 14 and the number of sets can be reduced or omitted. The crushing tool in the claims means both or one of the movable crushing tool 13 and the fixed crushing tool 14.

The conveyor 12 includes two drive chains 12a arranged at intervals and a plurality of plates 12b provided between the drive chains 12a. A movable crusher 13 is provided on the plurality of plates 12b. The movable crusher 13 collaborates with the fixed crusher 14 provided on the lid 11b to crush used paper diapers. The movable crusher 13 is fixed to the conveyor 12 so as to rotate in the same direction as the conveyor 12 rotates.

The movable crusher 13 of this embodiment is a set of four pieces, and a plurality of sets are provided at intervals in the rotation direction of the conveyor 12. The movable crushers 13 of each set are provided at intervals in the width direction of the conveyor 12. The widthwise spacing of the four movable crushers 13 is such that they can pass between the fixed crushers 14 of each set. The number of movable crushers 13 constituting one set may be more than or less than four.

The conveyor 12 is configured to be rotated (driven) by a conveyor driving means. As shown in FIG. 3, the conveyor driving means of this embodiment includes a motor M1 for driving a conveyor, a main pulley 15a provided on an output shaft of the motor M1, and a driven pulley 15b driven by the power of the main pulley 15a. It also includes a power transmission belt 15c that transmits the power of the motor M1 from the main pulley 15a to the driven pulley 15b, and a first driven sprocket 15d and a first driven sprocket 15e around which each drive chain 12a orbits.

The motor M1 is provided on a mounting table 16 provided on the front side of the front wall 11d of the case body 11a. A driving pulley 15a is provided on the output shaft of the motor M1. In this embodiment, a small motor having an output of 0.2 kW is used as the motor M1, but the motor M1 may be other than this.

The driven pulley 15b is of the front rotating shaft 15f of the two rotating shafts (hereinafter referred to as "front rotating shaft 15f" and "rear rotating shaft 15g") penetrating the left side wall 11f and the right side wall 11g of the case body 11a. It is provided in a portion protruding outward from the right side wall 11 g. The power transmission belt 15c is circulated around the outer circumferences of the main pulley 15a and the driven pulley 15b.

The first driven sprocket 15d is provided in a portion of the front rotating shaft 15f located in the case body 11a. In this embodiment, two first driven sprockets 15d are provided on the front rotating shaft 15f. The two first driven sprockets 15d are provided at intervals in the axial direction of the front rotating shaft 15f.

The first driven sprocket 15e is provided in a portion of the rear rotating shaft 15g located in the case body 11a. In this embodiment, two first driven sprockets 15e are provided on the rear rotating shaft 15g. The two first driven sprockets 15e are provided at intervals in the axial direction of the rear rotating shaft 15g.

The first driven sprocket 15d and the first driven sprocket 15e are provided at positions where the left side and the right side are lined up in a row in the front-rear direction. A drive chain 12a of the conveyor 12 is circulated on each of the first driven sprocket 15d and the first driven sprocket 15e arranged in the front-rear direction.

Both drive chains 12a of the conveyor 12 are urged downward by tension rollers 17, so that a part of the drive chains 12a and the plate 12b is immersed in the processing liquid stored in the case body 11a.

Since the conveyor driving means of this embodiment is configured as described above, when the motor M1 rotates in the forward direction, the rotational force is applied to the main pulley 15a-the power transmission belt 15c-the driven pulley 15b-the front rotating shaft 15f-the first. The one-driven sprocket 15d-the drive chain 12a-the first driven sprocket 15e-the rear rotating shaft 15g are transmitted in this order, and the conveyor 12 rotates in the forward direction. On the other hand, when the motor M1 rotates in the reverse direction, the rotational force is transmitted in the same path as in the case of the forward rotation, and the conveyor 12 rotates in the opposite direction to the forward rotation.

In the crushing device 10 of this embodiment, when the conveyor 12 is rotated by the conveyor driving means, the used paper diapers in the case 11 are crushed by the movable crushing tool 13 and the fixed crushing tool 14, and are included in the used paper diapers. The absorbent polymer is reduced by the treatment liquid in the case 11. In this embodiment, the movable crushing tool 13 and the fixed crushing tool 14 crush the used paper diapers to a size of about 15 mm × 50 mm or a size of about 25 mm × 25 mm. This size is an example, and may be other than this as long as it can be dehydrated by a dehydrator.

As described above, in the conveyor 12 of this embodiment, since the drive chain 12a is urged downward by the tension roller 17 and immersed in the processing liquid, the crushed material adheres to the conveyor 12 and the movable crusher 13. Is prevented. Further, in this embodiment, the used paper diapers can be crushed and the absorbent polymer can be reduced in parallel in one crushing device 10, so that the processing efficiency is high.

As the treatment liquid for reducing the absorbable polymer, for example, a calcium chloride solution having a concentration of about 10% can be used. The treatment solution can be produced with calcium chloride tablets and tap water. Specifically, a calcium chloride solution is generated by putting about 10 to 20 liters of tap water into the case body 11a and a predetermined number of calcium chloride tablets into the tap water. Tap water and calcium chloride tablets can be automatically charged into the case 11 at each treatment cycle.

In this embodiment, the conveyor 12, the movable crushing tool 13, the conveyor driving means, and the fixed crushing tool 14 correspond to the crushing means described in the claims. The crushing means may have other configurations.

The dehydration device 20 is a device that dehydrates the crushed material and the treated effluent discharged from the case 11 and discharges the crushed material after dehydration to the outside of the dehydration tank 21. As shown in FIGS. 5 and 6, the dehydration apparatus 20 of this embodiment includes a dehydration tank 21 for dehydrating crushed material and treated effluent, a dehydration tank driving means for driving (rotating) the dehydration tank 21, and a dehydration tank. A treatment drainage tank 22 for storing the treatment drainage discharged from the treatment drainage 21 and an outer cylinder 23 provided on the outside of the treatment drainage tank 22 are provided.

The dehydration tank 21 of this embodiment is an upwardly expanding container provided with an opening 21a above. A drainage discharge port 21b for draining the treated drainage is provided on the bottom surface and the peripheral surface of the dehydration tank 21. In this embodiment, a plurality of slits having a width of less than 0.3 mm are provided as the drainage discharge port 21b. The drainage discharge port 21b may be a hole or the like having a diameter of less than 0.3 mm.

The reason why the drainage outlet 21b is set to less than 0.3 mm is to prevent the treated drainage from passing through and the absorbent polymer after reduction (after volume reduction) from passing through. However, this dimension is an example, and the drainage outlet 21b can be made larger or smaller as long as the intended purpose can be achieved.

The dehydration tank 21 is driven (rotated) by the dehydration tank driving means. As shown in FIG. 5, the dehydration tank driving means of this embodiment is provided on the motor M2 for the dehydration tank 21, the second main sprocket 24a provided on the output shaft of the motor M2, and the bottom side of the dehydration tank 21. It is provided with a spindle 24b projecting downward, a second driven sprocket 24c provided on the lower end side of the spindle 24b, and a power transmission belt 24d circulated around the outer periphery of the second driven sprocket 24a and the second driven sprocket 24c. There is. In this embodiment, a small motor having an output of 0.4 kW is used as the motor M2. The motor M2 may be other than this.

When the motor M2 is rotated in the forward direction, the rotational force is transmitted in the order of the second main driving sprocket 24a, the power transmission belt 24d, the second driven sprocket 24c, and the spindle 24b, and the dehydration tank 21 connected to the spindle 24b is in the forward direction. Rotate to. On the other hand, when the motor M2 rotates in the reverse direction, the rotational force is transmitted in the same path as in the case of the forward rotation, and the dehydration tank 21 rotates in the opposite direction to the normal rotation.

In this embodiment, the dehydration tank 21 is rotated at three different speeds. The first stage is a draining mode that rotates at about 250 to 350 rpm, the second stage is a dehydration mode that rotates at about 350 to 1200 rpm, and the third stage is a discharge mode that rotates at about 1200 to 1800 rpm. In this embodiment, each rotation time is set to about 20 seconds in the draining mode, about 30 seconds in the dehydration mode, and about 10 seconds in the discharge mode. The rotation speed and rotation time can be other than this. In the present application, draining refers to discharging the treated waste liquid that was not absorbed by the absorbing polymer to the outside of the dehydration tank 21, and dehydration means that the treated waste liquid that could not be completely discharged by the drainer (treated waste liquid in the crushed material). (Including) is taken out of the dehydration tank 21.

In this embodiment, when the crushed material and the treated effluent discharged from the case 11 are put into the dehydration tank 21, the dehydration tank 21 is rotated in the draining mode for a predetermined time. When the draining mode ends, the mode is automatically switched to the dehydration mode, and the dehydration tank 21 rotates at a speed (first speed) faster than the rotation speed (third speed) at the time of draining for a predetermined time. When the dehydration mode ends, the mode is automatically switched to the discharge mode, and the dehydration tank 21 rotates at a speed (second speed) faster than the rotation speed (first speed) at the time of dehydration for a predetermined time.

In the draining mode, the treated drainage in the dehydration tank 21 is discharged from the drainage discharge port 21b of the dehydration tank 21, and in the dehydration mode in which a larger centrifugal force is applied than in the draining mode, the crushed material and the treatment in the dehydration tank 21 are applied. The drainage is dehydrated more firmly. In the discharge mode after the completion of dehydration, a larger centrifugal force acts than in the dehydration mode, the weight is reduced by dehydration, and the crushed material whose frictional force with the contact surface is reduced is the opening above the dehydration tank 21 due to the centrifugal force. It is discharged from 21a. The rotation mode of the dehydration tank 21 can be increased or decreased in more than three stages.

The treatment drainage tank 22 is a tank for collecting the treatment drainage discharged from the dehydration tank 21. The treatment drainage tank 22 of this embodiment has a bottomed cylindrical shape with an upper surface opening, and is provided on the outside of the dehydration tank 21 so as to surround the dehydration tank 21.

A drain 25 for discharging the treated drainage is provided on the bottom surface side of the treated drainage tank 22 so that the treated drainage can be discharged from the treated drainage tank 22 to a sewer pipe (not shown) through the drain 25. Although not shown, it is also possible to arrange a filter net at the tip of the drain 25 so that unnecessary substances can be collected by the filter net.

In this embodiment, the outer cylinder 23 is provided on the outside of the processing drainage tank 22. The outer cylinder 23 is a member for preventing the crushed material discharged from the dehydration tank 21 from being scattered and for guiding the crushed material into the dust box 30.

The outer cylinder 23 of this embodiment has a cylindrical shape with upper and lower openings, and a fixing flange 23a is projected outward on the lower end side. The lower opening 23b has the same or smaller diameter as the upper opening of the dust box 30 so that all the crushed material discharged from the dehydration tank 21 is guided into the dust box 30.

The upper opening of the outer cylinder 23 is closed by the outer cylinder lid 23c. The crushed material discharged from the opening 21a of the dehydration tank 21 hits the inner surface of the outer cylinder lid 23c, falls, and is guided into the dust box 30 (see FIG. 8). In this embodiment, a fluorine coating layer is provided on the inner surfaces of the outer cylinder body 23 and the outer cylinder lid 23c to prevent crushed materials from sticking to these inner surfaces. A water-repellent layer (a layer on which crushed material is less likely to adhere) other than the fluorine-coated layer may be provided on the inner surfaces of the outer cylinder body 23 and the outer cylinder lid 23c.

The dust box 30 stores the crushed material after dehydration discharged from the dehydrator 20. As an example, the dust box 30 shown in FIG. 5 is a container with a downward constriction provided with openings at the top and bottom. The opening above the dust box 30 has a diameter larger than that of the outer cylinder 23 so that all the crushed material discharged from the dehydration tank 21 can be collected.

Similar to the outer cylinder body 23 and the outer cylinder lid 23c, a fluorine coating layer is provided on the inner surface of the dust box 30 to prevent crushed materials from sticking to the inner surface. A collection bag (not shown) can be attached below the dust box 30. Similar to the outer cylinder body 23 and the outer cylinder lid 23c, a water-repellent layer (a layer on which crushed matter is less likely to adhere) other than the fluorine-coated layer can be provided on the inner surface of the dust box 30.

(Other embodiments)
In the above embodiment, the case where the absorbent body is a disposable paper diaper is taken as an example, but the method and apparatus of the present invention can also be used for treating sanitary products and other absorbent bodies.

In the above embodiment, the diaper processing device including the crushing device 10 and the dehydrating device 20 is described, but the crushing device 10 and the dehydrating device 20 of the embodiment can be implemented as independent devices.

In the above embodiment, the case where the dehydration tank 21 is subjected to all of the draining mode, the dehydration mode, and the draining mode is taken as an example, but either the draining mode or the dehydration mode may be omitted.

Although the description is omitted in the above embodiment, the diaper processing apparatus may be provided with deodorizing means and / or sterilizing means (not shown). When both the deodorizing means and the sterilizing means are provided, individual deodorizing devices and sterilizing devices can be provided, or deodorizing and sterilizing devices having both functions can be provided.

Although the description is omitted in the above embodiment, the diaper processing apparatus is provided with a start button (not shown), and when the processor presses the start button, the processing of the used paper diaper is automatically started. It is done like this.

Next, an example of an embodiment of the absorber treatment method of the present invention ( including the absorber crushing method and the absorber dehydration method in the present application ) will be described as an example when the diaper treatment apparatus is used. As shown in FIG. 7, in the diaper processing method of this embodiment, the used paper diaper includes a crushing / reducing step S1-emission step S2-dehydration step S3-crushed product discharge step S4.

In the crushing / reducing step S1, the used paper diaper in the case 11 is crushed by the movable crusher 13 provided in the case 11 containing the treatment liquid, and the absorbent polymer contained in the used paper diaper is crushed. Is a step of reducing (reducing the volume of the absorbent polymer) with the treatment liquid.

This process is started by pressing the start button. Specifically, when the start button is pressed by the processor, tap water and calcium chloride tablets are automatically charged into the case 11, a treatment liquid is generated in the case 11, and the conveyor 12 rotates and is used. The used paper diapers are crushed and the absorbent polymer contained in the used paper diapers is reduced. It is preferable that crushing and reduction are performed in the same case, but it is also possible to perform crushing and reduction in different cases depending on the situation.

The discharge step S2 is a step of discharging the crushed material and the treated drainage that have been crushed and reduced in the crushing apparatus 10 from the discharge port 11h to the dehydration tank 21. In this embodiment, when the crushing treatment and the reducing treatment in the crushing apparatus 10 are completed, the valve is automatically opened so that the crushed material and the treated effluent in the case 11 are discharged from the discharge port 11h to the dehydration tank 21. There is.

The dehydration step S3 is a step of dehydrating the crushed material and the treated effluent by rotating the dehydration tank 21 that has received the crushed material and the treated effluent discharged from the case 11. In this embodiment, the dehydration tank 21 is rotated at a speed of 350 to 1200 rpm (first speed) to dehydrate the crushed material and the treated effluent.

In the crushed material discharge step S4, the dehydration tank 21 is rotated at a speed (second speed) faster than the rotation speed (first speed) at the time of dehydration, and the crushed material after dehydration is produced by the centrifugal force generated by the rotation. This is a step of discharging to the outside of the dehydration tank 21. In this embodiment, the dehydration tank 21 is rotated in the range of 1200 to 1800 rpm, and the crushed material after dehydration is discharged to the dust box 30 outside the dehydration tank 21.

Before dehydration of the crushed material in the dehydration step S3, the dehydration tank 21 receiving the crushed material is rotated at a speed (third speed) slower than the rotation speed (first speed) at the time of dehydration. It is also possible to provide a draining step for draining the drainage. In this embodiment, the dehydration tank 21 is rotated in the range of 250 to 350 rpm so that the treated effluent can be drained.

Further, in the diaper treatment method, it is possible to provide both or one of a deodorizing step of deodorizing the crushed material and a sterilizing step of sterilizing the crushed material. For deodorization and sterilization, an existing or new deodorizing and sterilizing device can be used. In addition, sterilization in the present application means to the extent that bacteria are killed or reduced, and in a strict sense, it is a concept including a state in which bacteria are not completely eliminated.

In the diaper processing apparatus of this embodiment, used paper diapers can be processed one by one with the crushing / reducing step S1 to the crushed material discharging step S4 as one processing cycle. In this embodiment, one treatment cycle is set to be completed within about 5 minutes.

Not all steps of the diaper processing method are indispensable steps, and unnecessary steps can be omitted as appropriate.

The used paper diapers that have undergone the above steps are separated into treated effluent and crushed material and processed. Specifically, as shown in FIG. 8, the treated effluent used for the treatment in the case 11 is discharged to the dehydration tank 21, passes through the effluent discharge port 21b of the dehydration tub 21, and is a treatment effluent tank. It is discharged to 22. The treated effluent discharged to the treated effluent tank 22 passes through the drain 25 connected to the treated effluent tank 22 and is discharged to the sewer pipe.

On the other hand, the crushed material crushed in the case 11 is discharged to the dehydration tank 21 and dehydrated in the dehydration tank 21. The dehydrated crushed material is discharged to the outside of the dehydration tank 21 through the opening 21a above the dehydration tank 21 by the centrifugal force of the dehydration tank 21. The crushed material discharged from the opening 21a above the dehydration tank 21 hits the inner surface of the outer cylinder lid 23c, falls, and is discharged into the dust box 30 as it is and collected.

Absorber processing method of the present invention, the intake absorbent body dehydration process, the absorber processing apparatus, suction absorbent body dehydration device, including long-term care facilities and support facilities, homes, such as public facilities, various facilities of toilet (individual toilet It can be installed and used in (including booths).

Further, since the absorber treatment method and the absorber treatment apparatus of the present invention can treat used absorbers one by one, they have been used as in the case of treating a plurality of used absorbers at once. There is no need to store the absorber. Therefore, it can be expected to be used by people who have been struggling with these points.

10 Crusher 11 Case 11a Case body 11b Lid 11c Bottom surface 11d Front wall 11e Rear wall 11f Left side wall 11g Right side wall 11h Outlet 11i Outlet pipe 11j Input port 11k Hood 11m Guide 12 Conveyor 12a Drive chain 12b Plate 13 Fixed crusher 15a Driven pulley 15b Driven pulley 15c Power transmission belt 15d First driven sprocket 15e First driven sprocket 15f Front rotating shaft 15g Rear rotating shaft 16 Mounting stand 17 Tension roller 20 Dehydrating device 21 Dehydrating tank 21a Opening 21b Discharge port 22 Treatment drainage tank 23 Outer cylinder 23a Flange 23b Opening 23c Outer cylinder lid 24a Second main sprocket 24b Spindle 24c Second driven sprocket 24d Power transmission belt 25 Drain 30 Dust box 40 Rack M1 (for conveyor drive) Motor M2 Motor (for drainage tank)

Claims (8)

It ’s a method of treating absorbers.
The process of crushing the absorber by crushing means,
A step of reducing the volume of the absorbent polymer contained in the absorber with a treatment liquid, and
A step of discharging the crushed material and the treated effluent of the absorber that have undergone the shrinking step into an upwardly expanding dehydration tank having an opening at the top.
The dehydration tank containing the crushed material and the treated effluent is rotated at the first speed, and the treated effluent containing the treated effluent in the crushed material in the dehydration tank is discharged from the dehydration tank provided in the dehydration tank. a step you discharged from the outlet to the outside of the dewatering tank,
Said the drying tub is rotated at a different second speed and the first speed, the crushed material in the dewatering tank with a step of discharging from the upper opening of the dewatering tank outside the dewatering tank,
An absorber treatment method characterized by this. In the absorber treatment method according to claim 1,
Prior to dehydration of the crushed material and the treated effluent, a step of draining the treated effluent by rotating the dehydration tank receiving the crushed material and the treated effluent at a third speed different from the first speed was provided.
An absorber treatment method characterized by this. In the absorber processing method according to claim 1 or claim 2 Symbol placement,
A deodorizing step for deodorizing the crushed material and / and a sterilization step for sterilizing the crushed material.
An absorber treatment method characterized by this. It is a method of dehydrating the absorber.
By rotating the dehydration tank having an opening at the upper side containing the crushed material of the absorber and the treated effluent at the first speed, the treated effluent in the crushed material in the dehydration tank is included. The process of discharging the treated effluent to the outside of the dehydration tub from the effluent discharge port provided in the dehydration tub , and
A step of discharging the crushed material in the dehydration tank to the outside of the dehydration tank from the opening above the dehydration tank by rotating the dehydration tank at a second speed different from the first speed.
An absorber dehydration method characterized by this. Absorber processing device
It is equipped with a crushing device that crushes the absorber and a dehydrating device that discharges the crushed material and the treated effluent crushed by the crushing device.
The crushing device includes a case in which the treatment liquid is stored and a crushing means for crushing the absorber put into the case.
The dehydrating device includes an upwardly expanding dehydration tank having an opening above which crushed material and treated drainage discharged from the case enter, and a dehydration tank driving means for driving the dehydration tank.
The case is provided with a discharge port for discharging the crushed material and the processed drainage inside the case to the outside of the case.
The dehydration tank can be rotated by the dehydration tank driving means at least at a first speed and a second speed different from the first speed.
The dehydration tank is provided with a drainage outlet for draining the treated drainage.
The absorber in the case is crushed by the crushing means, and the volume of the absorbent polymer contained in the absorber is reduced by the treatment liquid in the case.
The crushed material and the treated effluent crushed by the crushing means are discharged from the discharge port to the dehydration tank of the dehydrator.
When the dehydration tank containing the crushed material and the treated effluent rotates at the first speed, the treated effluent containing the treated effluent in the crushed material in the dehydration tank moves out of the dehydration tank from the effluent discharge port. When the dehydration tank rotates at the second speed after the treatment drainage is discharged , the crushed material in the dehydration tank is discharged to the outside of the dehydration tank through the opening above the dehydration tank.
An absorber processing device characterized in that. In the absorber processing apparatus according to claim 5,
When the crushed material and the treated effluent are discharged to the dehydration tank from the discharge port of the crusher, the dehydration tank rotates at a third speed different from the first speed, and the treated effluent is drained by the rotation.
An absorber processing device characterized in that. In the absorber apparatus according to claim 5 or claim 6 Symbol mounting,
A deodorizing means for deodorizing the crushed material and / and a sterilizing means for sterilizing the crushed material were provided.
An absorber processing device characterized in that. It is a dehydrator for the absorber.
It is provided with an upwardly expanding dehydration tank having an opening above which the crushed material of the absorber and the treated drainage enter, and a dehydration tank driving means for driving the dehydration tank.
The dehydration tank is provided with a drainage outlet for draining the treated drainage.
When the dehydration tank is rotated at the first speed by the dehydration tank driving means , the treated drainage containing the treated drainage in the crushed material in the dehydration tank is discharged to the outside of the dehydration tank from the drainage discharge port.
When the dehydration tank is rotated at a second speed different from the first speed by the dehydration tank driving means, the crushed material in the dehydration tank is discharged to the outside of the dehydration tank through the opening above the dehydration tank.
An absorber dehydrator characterized by this.

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