KR101496543B1 - Defibrating device and sludge dehydrating device - Google Patents

Abstract

A fibrillation device (1) for mixing input stock material and water and fibrillating a stock material, characterized in that the fibrillation device (1) has a substantially cylindrical shape and has a central axis (O) The drum 7 is formed so as to be inclined upward toward the other in the direction toward the other and is formed to be rotatable around the central axis O and to be urged as the gradient of the inner circumferential surface is directed from one side toward the other side in the central axis direction A first blade 22 formed on one side of the inner peripheral surface of the drum 7 in the central axial direction and a second blade 23 formed on the other side in the direction of the central axis on the inner peripheral surface of the drum 7, (One).

Description

[0001] DEFIBRATING DEVICE AND SLUDGE DEHYDRATING DEVICE [0002]

The present invention relates to a fibrillation apparatus and a sludge dewatering apparatus for fibrillating paper materials such as waste paper together with dissolved water.

In recent years, in order to regenerate sludge such as industrial wastewater and household drainage as, for example, a combustion auxiliary material of a waste incinerator, sludge is dewatered (low water content dehydration). In the sludge dewatering equipment used in such a treatment, the sludge and the dehydrating auxiliary material are mixed in the mixing tank to improve the dewaterability or improve the heating value, thereby dehydrating the sludge.

As a dehydrating auxiliary material, it has been attempted to use a waste paper fibrillated by a fibrillation device. BACKGROUND ART As a fibrillating device for a waste paper, there is known a pulver having a cylindrical melting tank for receiving waste paper and liquid such as water, and a rotatable crush blade provided at the bottom of the melting tank for crushing waste paper in a fibrous form. A pulper is a device mainly used for producing a raw material of a papermaking machine. The pulp blade is rotated at a high speed to shear the papers while shearing the papers with a crushing blade. The term "fibrillated fiber" in the present application means that fibers of paper are dissociated into fibrous components.

There is also known a fiber flow type pulsating fibrillation apparatus in which raw paper and a solution are fed into a perforated drum (drum of a punching plate), and the fiber after dissolution is extracted from the pit while rotating the perforated drum (see, for example, 1).

Japanese Patent Publication No. 58-48676

However, in the waste paper fusing apparatus using the pulp, a large power is required because waste paper is put into a container, the paper is made hydrophilic by liquid, and the waste paper is made into a fibrous form by a rotatable crushing blade.

Further, when the ground material is sheared, a large impact force is generated, so that the fluctuation of the power is large and excessive power may be required.

Further, in the fibrillation apparatus using the pulp, there is a problem that the fibrillation paper is caught in the fibrillation blade in the fibrillation process. Further, when the dissolving liquid rotates with the rotation of the crushing blade, the crushing effect is reduced because the papers rotate together.

In addition, the fiber-flow-type waste paper fusing apparatus suffers from the problem that a large amount of waste paper is fumigated and is suitable for uniform fiber recovery, and it takes time to uniformly dissolve a small amount of paper waste.

The object of the present invention is to provide a fibrillation device and a sludge dewatering device capable of fibrillating a papermaking material efficiently in a short period of time with less power.

In order to solve the above problems, the present invention provides the following means.

A fibrillation apparatus according to the present invention is a fibrillation apparatus which mixes the input stock material and water and fibrillates the stock material in the mixture of the stock material and water. The fibrillation apparatus has a substantially cylindrical shape and has a central axis inclined such that the other central axis is higher than one of the central axis A drum which is formed so as to be rotatable about its central axis and which is formed such that a gradient of the inner peripheral surface thereof rushes from one side toward the other side in the direction of the central axis and a second blade which is formed on one side of the inner peripheral surface of the drum in the direction of the central axis, And a second blade formed on the other side in the direction of the central axis on the inner peripheral surface of the drum.

According to the above configuration, a mixture of the land material and water collected on one side of the drum with the rotation of the drum is fibrillated by the effect of strong turbulence generated between the surface of the first blade and the inner circumference of the drum, The first and second blades are scratched and flowed so as to reciprocate from one side to the other side so that the pile material is naturally fired by the flow of water and the mixture remaining on the first blades is also impacted by the drop, can do. In addition, it is possible to shred the ground material without using means for cutting the ground material such as the crushing blade. Further, there is no shearing of the fibers, and the papers can be fibrillated while suppressing the deterioration of the function of the resulting fibrillated fiber.

In the above-described fibrillation machine, it is preferable that a third wing is formed between the first wing and the second wing in the central axis direction.

According to the above configuration, the effect of fibrillation can be obtained even when the mixture flows between the one end side and the other end side of the drum, and the mixture remaining on the third wing is also impacted by the falling, Since the impregnated mixture is more smoothly guided to the first wing, it is possible to more efficiently shovel the ground material.

In the fibrillation machine, the other side of the first wing and one side of the third wing are partially overlapped with each other, and the other side of the third wing and one side of the second wing are partially overlapped with each other desirable.

According to the above arrangement, when the mixture flows on the one end side and the other end side of the drum, the guide of the mixture between the neighboring blades becomes more certain.

In the above-described fibrillation machine, it is preferable that the third wing is inclined toward the rotating direction so as to hold the mixture of the ground material and water between the third wing and the inner peripheral surface of the drum during the regular rotation of the drum.

According to the above arrangement, it is possible to more reliably hold the mixture when the mixture is scratched or scratched by the forward rotation of the drum.

It is preferable that the fibrillation machine further comprises a fourth wing for guiding the mixture flowing from the one end to the other end during the forward rotation to the second wing.

According to the above configuration, since the mixture flowing out to the other end is more smoothly guided to the second vane, the punch can be more efficiently fined.

In the above-described fibrillation machine, the drum is provided with a cylindrical straight portion constituting a center in the direction of the central axis, a conical barrel which is disposed on one side in the direction of the central axis of the straight portion, And a second cone-shaped second cone portion disposed on the other side in the direction of the central axis of the straight portion and gradually decreasing in diameter toward the other side, wherein the first wing includes a first cone portion And the second wing is formed to extend in the direction of the central axis in the second conical portion.

According to the above configuration, by inclining the drum, the drum can be more easily manufactured as the gradient of the lower inclination is directed from one side to the other, and it is easy to form each blade on the inner peripheral surface of the drum.

And a fourth wing for guiding the mixture flowing from one end to the other end in the forward rotation for guiding the mixture to the second wing in the sequential screening, wherein the drum has a cylindrical straight portion constituting the center in the direction of the central axis A first conical cylindrical portion which is disposed on one side of the center portion in the direction of the central axis of the straight portion and whose diameter gradually decreases toward one side of the first conical portion, Wherein the first wing is formed to extend in the direction of the central axis in the first conical barrel, and the second wing is formed to extend in the second conical barrel And the third wing is formed so as to extend in the direction of the central axis in the direction of the central axis, and the fourth wing is formed to extend in the central axial direction of the second conical cylinder It is possible to have a structure that is formed so as to extend in the center axial direction.

In the above-described fibrillation machine, it is preferable that a guide vane formed so as to block the mixture in the forward rotation of the drum is mounted on the free end side of the second vane.

According to the above configuration, it is possible to increase the discharge efficiency of the mixture by blocking the mixture over the second wing.

In the fibrillation machine, it is preferable that the drum is reversibly rotatable.

According to the above arrangement, the mixture can be discharged more easily by rotating the drum in the reverse direction.

In the above fibrillation machine, it is preferable that the inclination angle of the central axis of the drum is changeable.

According to the above configuration, the discharge time of the mixture can be further shortened.

The sludge dewatering apparatus according to the present invention is characterized in that any of the above-described frying apparatuses and dehydrators are provided, and the dehydrator dehydrates the sludge to which the frying material fumed by the frying apparatus is added as a dehydrating auxiliary agent.

According to the above configuration, it is possible to improve the dewaterability of the sludge and reduce the amount of sludge generated.

According to the present invention, as the drum rotates, a mixture of the land material and water is fizzled by the effect of strong turbulence generated between the blade and the inner periphery of the drum, and the water flows so as to reciprocate between the one side and the other side of the drum, And the mixture remaining on the wing is also subjected to the impact caused by the drop, so that even if the drum is rotated at low speed, the pile can be efficiently smashed. In addition, it is possible to shred the ground material without using means for cutting the ground material such as the crushing blade. Further, there is no shearing of the fibers, and the papers can be fibrillated while suppressing the deterioration of the function of the resulting fibrillated fiber.

1 is a schematic diagram of a sludge dewatering apparatus according to an embodiment of the present invention.
2 is a side view of a frying apparatus according to an embodiment of the present invention.
3 is a partial cross-sectional view of the drum portion according to the embodiment of the present invention.
Fig. 4 is a perspective view of the drum portion partially viewed from the side. Fig.
Fig. 5 is a perspective view of the drum portion as viewed from the inlet port side. Fig.
Fig. 6 is an exploded view of a linear portion, a first conical portion and a second conical portion constituting the drum.
7A is a part view of the first wing.
7B is a part view of the second wing.
7C is a part view of the third wing.
7D is a part view of the fourth blade.
8 is a view showing the angle between the first wing viewed from the insertion port side and the inner circumferential surface of the first conical cylinder portion.
9 is a view showing the angles of the second wing and the fourth wing viewed from the insertion port side and the inner circumferential surface of the second conical barrel.
10 is a view showing the angle between the third blade viewed from the insertion port side and the inner peripheral surface of the rotary part.
Fig. 11A is a view for explaining the operation of the frying apparatus and the scraping operation of the mixture by the wing. Fig.
Fig. 11B is a view for explaining the operation of the fibrillation device and the scraping operation of the mixture by the wings. Fig.
Fig. 12 is a view for explaining the action of the fibrillation device and the flow of the mixture flowing from the first wing. Fig.
Fig. 13 is a view showing the action of the fibrillation device, and is a view for explaining the flow of the mixture being pushed back by the second blade. Fig.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

Fig. 1 shows the overall configuration of the sludge dewatering device 50 of the present embodiment. As shown in Fig. 1, the sludge dewatering apparatus 50 of the present embodiment includes a sludge storage tank 51 storing sludge and coagulated sludge, a fossil frit retaining tank 52 storing fibrillated waste paper, A mixing tank 53 in which the sludge is supplied from the storage tank 51 and the fibrillated waste is supplied from the fibrillation waste storage tank 52, a fibrillated waste storage tank 52 which supplies fibrillated waste to the mixing tank 53, A first flocculation tank 54 and a second flocculation tank 55 for flocculating the sludge particles to generate floc sludge and a sludge thickening device for sludge agglomerated by the flocculation tanks 54 and 55 (For example, a screw press) 57 for dehydrating concentrated sludge and a dehydrating sludge hopper 58 for storing dehydrated sludge as main components.

A sludge supply pump 60 for supplying the sludge from the sludge storage tank 51 to the mixing tank and a fibrillated waste supply pump 61 for supplying fibrillated waste to the mixing tank 53 from the fibrillated waste storage tank 52 have. The sludge dewatering device 50 is provided with a fibrillation device (for example, a horizontal type rotary fibrillation device) 1 for producing fibrillated waste paper to be supplied to the fibrillated waste storage tank 52. In the frying apparatus 1, the waste paper is supplied from the automatic paper supply device 62, and water is supplied from the replenishing water tank 68.

The sludge supplied to the mixing tank 53, the first flocculation tank 54 and the second flocculation tank 55 is agitated by a stirrer.

When the sludge dewatering device 50 is used to dewater the sludge, the sludge and the waste paper pulp are mixed and stirred in the mixing tank 53. Here, the waste fiber discard serves as a dehydrating auxiliary material. Next, the sludge mixed with the wastewater is discharged from the tank 64 filled with, for example, an iron-based inorganic flocculant (for example, poly-iron such as ferric polysulfate) in the first flocculation tank 54, And the dehydrating auxiliary agent is added from the tank 65 in which the dehydrating auxiliary agent (for example, nonionic (nonionic surfactant)) is filled in the second flocculating tank 55 by the addition of the inorganic flocculating agent It coalesces.

The first flocculation tank 54 and the second flocculation tank 55 may be reversed. It is also possible to omit the first flocculation tank 54 and add the iron-based inorganic flocculant 64 to the inlet of the dehydrator 57 from the sludge thickener 56.

The agglomerated flocked sludge is concentrated in the sludge thickener 56 to become concentrated sludge. The concentrated sludge is dehydrated by a dehydrator 57 of a screw press type and discharged to a dehydrating sludge hopper 58 as a dehydrated cake. Steam is supplied to the dehydrator 57 from the boiler 66, and the concentrated sludge is indirectly heated. The dehydrated filtrate discharged from the dehydrator 57 is returned to the sludge storage tank 51 after the sludge is separated in the separation tank 67.

The fibrillation machine 1 is an apparatus for generating fibrillated waste paper as a dehydrating auxiliary added to the sludge in the sludge dewatering apparatus 50 described above. The fibrillating device 1 is configured to directly feed the waste paper leaving a circular shape such as a bundle of old newspaper to the drum portion 4 (see FIG. 2) and supply the waste paper from the replenishing water tank 68 to the drum portion 4 This is a device for disposing of waste paper together with dissolved water.

2, the fibrillation machine 1 includes a first fulcrum portion 2 serving as a base of the fryer 1 and a second fulcrum portion 2 fixed to the first fulcrum portion 2 in a rotatable manner And a drum portion 4 rotatably fixed on the second barb 3 as a main component. In the following description, one side of the left side of Fig. 2 is forward and the other side of the right side of Fig. 2 is opposite to the other side. In the following description, the central axis O of the substantially cylindrical drum 7 constituting the drum portion 4 is simply referred to as the central axis O and the direction of the central axis O is simply referred to as the center Axis direction.

The drum portion 4 has a drum 7 having a substantially cylindrical shape and a charging port 15 which is opened to the rear and is capable of charging a waste paper from the charging port 15. The capacity of the drum 7 is, for example, 1,200 liters.

The first and second leg portions 2 and 3 are frames formed by combining steel materials, for example, and are rotatable with respect to each other through a hinge 5 formed at one end portion. A jack 6 is formed between the first and second leg portions 2 and 3. The second leg portion 3 is rotated about the hinge 5 by rotating the jack 6 It is supposed to exercise. The second lifting portion 3 is supported by a plurality of casters 31 and enables the movement of the fusing device 1. [

As described above, the drum portion 4 is fixed on the second leg portion 3. By rotating the second leg portion 3, the drum portion 4 can be rotated, for example, The rear end side of the drum portion 4 can be rotated around the hinge 5 in the upward direction. That is, the inclination angle of the central axis O of the drum portion 4 can be changed. When the fibrillation of the waste paper is performed by the fibrillation machine 1 of the present embodiment, the drum portion 4 is inclined upward toward the rear end from the front end.

The drum portion 4 is a substantially hollow hollow container and includes a drum 7 having a charging port 15 at the rear and a plurality of blades 22, 23, 24 and 25 fixed to the inner peripheral surface of the drum 7 3), and the waste paper can be introduced from the charging port 15 of the drum 7. [0052] As shown in Fig.

A rotary shaft (8) is formed to protrude from one end of the drum (7). The drum 7 is fixed so that the center axis O can freely rotate on the second leg portion 3 so as to be orthogonal to the hinge 5. [

A motor 9 is disposed in front of the rear end of the second base portion on which the hinge 5 of the second base portion 3 is mounted.

The first sprocket 11 is mounted on the shaft of the motor 9 and the second sprocket 12 is mounted on the rotary shaft 8 of the drum portion 4. Since the chain 13 is engaged between the first sprocket 11 and the second sprocket 12, the chain 13 and the sprockets 11, 12 are driven by the motor 9, (4) is rotated. The drum portion 4 is freely rotatable in the forward rotation direction and reverse rotation reverse to the forward rotation direction is also possible. The tip end of the rotating shaft 8 is supported by a bearing unit 14 fixed to the second lifting portion 3.

The drum portion 4 is supported by a plurality of drum supporting rollers 16 in the vicinity of the central portion in the central axial direction (the later-described directing portion 17). The drum support roller 16 is arranged such that the rotation axis of the roller is along the center axis O of the drum portion 4. [

Next, the drum unit 4 will be described in detail. As described above, when the waste paper is fibrillated, the drum portion 4 is inclined upward toward the rear end from the front end. 3 is a view showing the state in which the drum portion 4 is inclined in detail as viewed from a partial cross section.

Hereinafter, it is assumed that the drum unit 4 is in an inclined state. This inclination angle is, for example, about 16 degrees.

3, the drum 7 constituting the drum portion 4 has a substantially cylindrical shape and includes a cylindrical linear portion 17 constituting a center in the central axial direction, , A first cone-shaped tubular portion 18 disposed in front of the cylindrical portion 17 and gradually decreasing in diameter toward the front side, and a conical tubular member 18 disposed rearwardly of the rectilinear portion 17 and gradually decreasing in diameter toward the rear side And a two-cone sleeve portion 19.

The front end of the first cone portion 18 and the front end of the second cone portion 19 are in the form of a flange and the front end portion of the first cone portion 18, And is welded to the two-cone sleeve portion 19 via a flange.

The front end of the first cone sleeve 18 is sealed by a disc-shaped end plate 20. [ The rotary shaft 8 of the drum portion 4 is fixed to the center of the rigid plate 20 so as to be orthogonal to the rigid plate 20. [ A conical portion 21 projecting inward of the drum 7 is formed at the center of the rigid plate 20. The angle of the top of the conical portion 21 viewed in the direction orthogonal to the central axis direction is about 90 degrees. The diameter of the bottom of the cone portion 21 is slightly smaller than the diameter of the front end portion of the first cone portion 18.

The first cone sleeve 18 is formed such that the outer circumferential surface 18a of the first cone sleeve 18 below the first cone sleeve 18 viewed in the direction orthogonal to the central axis direction is substantially parallel to the horizontal plane. Hereinafter, the angle of the outer peripheral surface of the lower portion of the drum 7 with respect to the horizontal plane is called the lower inclination. That is, the lower inclination of the first cone sleeve 18 is 0 占.

Since the linear portion 17 has a cylindrical shape, the lower inclination coincides with the central axis direction. That is, since the tilting angle in the direction of the central axis is about 16 degrees, the lower inclination of the tilting portion 17 is about 16 degrees.

Since the second conical tube portion 19 has a shape gradually reduced in diameter toward the rear end, the lower inclined portion of the second conical tube portion 19 is larger than the lower inclined portion of the swivel portion 17.

That is, the lower inclination of the drum 7 is formed so as to be urged from the front end toward the rear end, and a mixture of, for example, waste paper and water accommodated in the drum 7 is transferred from the rear end side of the drum 7 to the front end side And is collected in the vicinity of the first cone sleeve 18.

Next, the wings formed on the inner peripheral surface of the drum 7 will be described.

Fig. 4 is a perspective view of the drum portion 4 partially viewed from the lateral side, and Fig. 5 is a perspective view of the drum portion 4 as viewed from the loading port 15 side (rear side). As shown in Figs. 4 and 5, each of the vanes 22, 23, 24 and 25 has a rectangular plate shape, and at least respective long sides thereof are fixed to the inner peripheral surface of the drum 7 by welding, for example. Hereinafter, the fixed side is referred to as a fixed side. The guide vanes 26 may be mounted on the long side, that is, the free end side, which is not the fixed side of the second wing, so as to prevent returning to the front end during discharge of the mixture to increase the discharge efficiency.

6 is an exploded view of the drum 7, showing the inner peripheral surface of the drum 7. Fig. FIGS. 7A to 7D are views showing the external shapes of the first wing 22, the second wing 23, the third wing 24, and the fourth wing 25. In Fig. 6, the inclination with respect to the mounting position and the central axis direction of each blade is shown.

6, the direction of the fixed side of each wing is inclined by a predetermined angle with respect to the line (indicated by the dot-dash line in Fig. 6) along the central axis O on the inner peripheral surface of the drum 7 . That is, the longitudinal direction of each of the vanes does not follow the central axis O of the drum 7, but is inclined with respect to the central axis O of the drum 7. [

The vanes 22, 23, 24 and 25 are not fixed so as to be orthogonal to the inner circumferential surface of the drum 7, but are fixed so that the vanes are inclined toward the rotating direction. The angle of inclination is, for example, 20 degrees between the plane of the blade and the inner circumferential surface of the drum 7.

The wings are composed of two first wings 22 formed on the inner peripheral surface of the first conical barrel 18, two second wings 23 formed on the inner peripheral surface of the second conical barrel 19, Two third wings 24 formed on the inner peripheral surface of the eccentric portion 17 and partially overlapping the first conical tube portion 18 on the front end side and a part of the rear end side portion overlapping the second conical tube portion 19, And two fourth wings 25 formed on the front end side of the inner circumferential surface of the second conical barrel 19. As shown in Fig.

That is, the first wing 22 is formed on the front end side of the inner peripheral surface of the drum 7, the second wing 23 is formed on the rear end side of the inner peripheral surface of the drum 7, And is formed between the first wing 22 and the second wing 23 in the direction of the arrow.

Details of each wing are as follows.

The first wing (22) is a plate-like member having a length and a predetermined height substantially over the entire length of the first conical barrel (18). The height is, for example, about 30% of the diameter of the direct acting portion 17. The two first wings (22) are mounted on the inner circumferential surface of the first cone sleeve (18) at regular intervals in the circumferential direction.

The direction of the fixed side of the first vane 22 is set such that the direction of the fixed edge of the first vane 22 is the same as the direction in which the first vane 22 is located below the inlet 15 in relation to the line along the center axis O on the inner peripheral surface of the drum 7. [ The front end side is inclined by about 20 DEG, for example, toward the left side, that is, toward the opposite direction from the front end toward the rear end.

8, when the first wing 22 is positioned at the lower side, the surface of the first wing 22 is located on the right side from the outer peripheral side toward the center as viewed from the loading port 15 side For example, at an angle of about 20 [deg.] With respect to the inner circumferential surface of the first cone sleeve 18. [ That is, when the drum unit 4 rotates in the direction indicated by the arrow in FIG. 8 (hereinafter referred to as normal rotation), the angle at which the first blade 22 keeps the mixture of waste paper and water, Respectively.

The front end portion of the first blade 22 is connected to the end plate 20 and the conical portion 21. That is, there is no gap between the first wing 22 and the end plate 20 and the conical portion 21.

The second blade (23) is a plate-like member having a length and a predetermined height over substantially the entire second cone portion (19). The height is, for example, about 30% of the diameter of the direct acting portion 17.

The two second blades 23 are mounted on the inner circumferential surface of the second conical cylinder section 19 at regular intervals in the circumferential direction. Each of the second blades 23 is mounted at a position where the position of the rear end portion in the circumferential direction coincides with the position of the front end portion of the first blade 22 in the circumferential direction.

The direction of the fixed edge of the second blade 23 is the same as the direction of the edge of the insertion hole 15 with respect to the line along the central axis O on the inner peripheral surface of the drum 7 when the second blade 23 is positioned downward. The front end side is inclined by about 20 DEG toward the right side, that is, toward the rear end from the front end to the rear end.

9, when the second blade 23 is located at the lower side, the surface of the second blade 23 is curved toward the center from the outer circumferential side when viewed from the loading port 15 side, And is fixed so as to form an angle of 20 DEG with the inner circumferential surface of the second cone sleeve 19. [

The third blade (24) is a plate-shaped member having a length and a predetermined height extending almost over the entire length of the rotating portion (17). The height is, for example, about 30% of the diameter of the direct acting portion 17. The third wing 24 has a length such that the front end side overlaps (overlaps) with the first wing 22 and the rear end side overlaps with the second wing 23 as viewed from the direction orthogonal to the central axis direction I have.

The two third blades 24 are mounted on the inner circumferential surface of the rotating portion 17 at regular intervals in the circumferential direction.

Each of the third blades 24 is mounted such that the circumferential position of the front end portion is located in the middle of the position of the front end portion of the two first blades 22 in the circumferential direction.

The direction of the fixed edge of the third blade 24 is set so that the line along the central axis on the inner peripheral surface of the drum 7 when viewed from the loading port 15 side The front end side is inclined by about 20 DEG toward the right side, that is, toward the rotation direction from the front end toward the rear end.

10, when the third vane 24 is located at the lower side, the surface of the third vane 24 is located on the left side as viewed from the inlet 15 toward the center from the outer peripheral side So as to form an angle of 20 DEG with the inner peripheral surface of the direct-acting part 17, as shown in Fig.

The fourth blade (25) is a plate-shaped member having a predetermined axial length and a predetermined height. The length is, for example, about 30% of the axial length of the inner circumferential surface of the second cone sleeve 19. [ For example, about one-half of the diameter of the direct-acting portion 17.

The two fourth wings 25 are mounted on the inner circumferential surface of the second conical tube portion 19 at equal intervals in the circumferential direction so that the front end portion of the fourth wing 25 coincides with the front end portion of the second conical tube portion 19 . Each of the fourth blades 25 is mounted so as to be located in the middle of the position in the circumferential direction of the front end portion of the two second blades 23.

The direction of the fixed edge of the fourth blade 25 is set such that the line along the central axis on the inner peripheral surface of the drum 7 when viewed from the loading port 15 side The front end side is inclined by about 20 DEG toward the left side, that is, toward the opposite direction from the front end toward the rear end side.

9, the surface of the fourth blade 25 is located on the left side as viewed from the insertion port 15 side toward the center from the outer peripheral side when the fourth blade 25 is positioned below And is fixed so as to form an angle of 20 DEG with the inner circumferential surface of the second cone sleeve 19. [

Next, the operation of the fibrillation machine 1 of the present embodiment will be described.

(Hydrophilization process)

First, the waste paper is put into the drum unit 4 from the charging port 15. [ Abolition is, for example, a retained circle of the same shape as a bunch of newspaper. The amount of waste paper is appropriately determined according to the capacity (for example, 1200 liters) of the drum portion 4, but it is set to about 6 kg in the case of the present embodiment.

Next, the molten water is injected into the interior of the drum portion 4 from the charging port 15. The amount of dissolved water is appropriately determined according to the capacity of the drum portion 4, but in the case of the present embodiment, the amount of dissolved water is set to about 150 liters. That is, the dissolution concentration of the fibrin sealer 1 of the present embodiment is about 4%. Then, it stands still for about 5 minutes to infiltrate the dissolving water into the waste paper. As a result, dissolved water dissolves in the waste paper and the hydrophilization is completed. Hereinafter, the hydrophilized waste paper is referred to as a mixture.

As the dissolving water, water, sludge, dehydrated filtrate can be used.

Next, stirring of the mixture is performed by rotating the drum portion 4. [ The number of revolutions (rotational speed) of the drum portion is set such that the mixture in the drum portion 4 does not rotate together (the rotational speed of the mixture and the rotational speed of the drum portion coincide with each other) , Preferably 5 rpm to 60 rpm.

(Low-speed stirring step)

First, the drum unit 4 is rotated forward at low speed. That is, when viewed from the injection port 15 side, it is rotated rightward to start stirring.

First, the rotation number is set to 15 rpm, for example, and the rotation is performed for 5 minutes.

The mixture collected in the first cone sleeve portion 18 of the drum portion 4 is smoothed by the effect of strong turbulence generated between the surface of the first wing 22 and the inner circumferential surface of the drum by rotating the drum portion 4 Together they are scraped backwards. On the other hand, as shown in Figs. 11A and 11B, the mixture of the parts scraped upward on the first wing 22 drops downward, and an impact force is applied thereto.

As shown in Fig. 12, the mixture scraped off by the first wing 22 flows backward along the first wing 22. The mixture flowing to the rear of the drum portion 4 collides with the second blade 23. Then, as shown in Fig. 13, the mixture is pushed forward by the second blade 23. That is, the mixture is redirected by the second blades 23, and stirred at the time of redirecting.

The mixture pushed forward by the second blades 23 is fizzled by the effect of strong turbulence generated between the third blades 24 and the inner circumference of the drum while the mixture having a low flow rate is fizzled by the third blades 24, . ≪ / RTI > The scraped mixture falls downward in the vicinity of the uppermost point of the drum portion 4, and an impact force is applied thereto. On the other hand, the mixture having a high flow velocity is guided to the first wing 22 by the third wing 24. That is, the third wing 24 directs the mixture to an optimum position where the mixture is subjected to the fibrillating effect by the first wing 22.

Further, during agitation by the rotation of the drum portion 4, the fourth blade 25 has a function of guiding the mixture flowing from the front end side to the rear end side to the second blade 23.

In this process, the waste paper constituting the mixture is disturbed in a state of being aggregated by imparting an impact by falling or flowing in the forward and backward directions of the drum portion 4.

(Inherent speed (constant speed) stirring step)

Next, the drum unit 4 is rotated forwardly by inheritance. The rotation speed is set at 22 rpm, for example, and the rotation is performed for 15 minutes. In this process, the mixture containing the waste paper disrupted in a different state is imparted with a higher frequency of impact, and the flow of the waste paper at a higher speed promotes the fibrillation of the waste paper.

(Discharge process)

Finally, the jack 6 is operated so that the drum portion 4 is inclined so that the central axis O is directed downwardly from the front toward the rear. At the same time, the drum portion 4 is reversely rotated to discharge the mixture from the inlet 15. At this time, the mixture is discharged by the second blades 23 and the third blades 24.

The mixture collected in the first conical cylinder portion 18 of the drum portion 4 along with the rotation of the drum portion 4 is subjected to a strong turbulent flow generated between the surface of the first impeller 22 and the inner circumferential surface of the drum. On the other hand, the mixture scraped off by the first wing 22 flows so as to reciprocate between the front end side and the rear end side of the drum portion 4, so that the waste paper is smoothly discharged by the water stream, The mixture remaining on the blade 22 is also subjected to an impact caused by the drop, so that even if the drum portion 4 is rotated at low speed, the papers can be efficiently smoothed. In addition, it is possible to perform fibrillation without using means for cutting waste paper such as crushing blades. In addition, since there is no shearing of the fibers, the waste paper can be fined while suppressing the deterioration of the function of the generated fibrillated paper.

The third wing 24 is formed between the first wing 22 and the second wing 23 in the direction of the central axis to cause turbulence in the forward rotation and the first wing 22 The effect of fibrillation by the turbulence and the impact due to falling can be imparted to the mixture even when the mixture flows between the front end side and the rear end side of the drum portion 4. [ Further, since the mixture which is pushed back to the front end side from the rear end side is more smoothly guided to the first wing 22, the waste paper can be smoothed more efficiently.

In addition, since the mixture flowing out from the front end side to the rear end side in the forward rotation display by the fourth wing 25 is more smoothly guided to the second wing 23, the waste paper can be more efficiently discharged.

Further, since the drum 7 is divided into the straight portion, the first conical portion, and the second conical portion, the inclination makes it easier to manufacture the drum 7 which is urged by the gradient of the lower inclination from the front end toward the rear end And it is easy to form each blade on the inner circumferential surface of the drum 7.

Part of the rear end side of the first wing 22 and the front end side of the third wing 24 are overlapped with each other and the front end side of the third wing 24 and the front end side of the second wing 23 are partially The guide of the mixture between the neighboring blades becomes more clear when the mixture flows between the front end side and the rear end side of the drum portion 4.

Since the first wing 22 and the third wing 24 are inclined toward the rotating direction so as to hold the mixture between the inner peripheral surface of the drum 7 and the inner peripheral surface of the drum 7 during the regular rotation of the drum 4, It is possible to more reliably hold the mixture when the mixture is scratched or scratched by the forward rotation of the portion 4. [

The technical scope of the present invention is not limited to the above embodiment, and various modifications can be added within the scope of the present invention. For example, in the embodiment described above, the third wing 24 is formed to have two wings. However, for example, the third wing 24 may be formed by a single wing that spirals the second conical cylinder portion 19 of the drum 7 You can. Even in such a shape, it is possible to prevent the mixture from leaking out and pushed into the inside in the forward rotation display, and to transport it in the direction of discharging the mixture at the time of discharge.

The rotation of the drum portion 4 is not limited to the type in which the rotation of the motor 9 is transmitted through the chain 13 and the sprockets 11 and 12. For example, The drum portion 4 may be rotated by the friction between the drum support roller 16 and the drum 7 by rotating the drum by the motor.

1: Fusing device
4:
7: Drums
8:
15: Inlet
17:
18: first conical barrel
19: second conical barrel
22: First wing
23: second wing
24: Third wing
25: fourth wing
26: guide wing
50: Sludge dewatering device
57: Dehydrator
O: center axis

Claims (11)

A fibrillation apparatus for mixing input stock material and water and dissolving the stock material in a mixture of stock material and water,
Wherein the central axis is inclined so that the other of the central axes is higher than one of the central axes and is rotatable around the central axis, and the gradient of the inner circumference is in the central axis direction, A drum formed to be urged from one side toward the other side in the direction of the central axis,
A first wing formed on one side of the inner circumferential surface of the drum in the direction of the central axis,
A second blade formed on the other side in the direction of the central axis on the inner peripheral surface of the drum,
A third wing formed between the first wing and the second wing in the central axis direction,
Flows from one side of the central axis direction to the other side in the central axis direction during forward rotation
And a fourth wing for guiding the emerging mixture to the second wing,
Wherein the drum has a cylindrical cylindrical portion constituting a center in the central axis direction and a conical cylinder disposed in one side of the center portion in the direction of the central axis and gradually reduced in diameter toward the central axial direction, And a second cone-shaped second tubular portion disposed on the other side in the central axis direction of the above-mentioned straight portion and being gradually reduced in diameter toward the other side in the central axis direction,
Wherein the first wing is formed to extend in the central axis direction in the first cone portion,
The second wing is formed to extend in the central axial direction in the second conical barrel,
The third wing is formed to extend in the direction of the central axis in the straight portion,
And the fourth wing is formed so as to extend in the direction of the central axis on one side of the central axis direction of the second conical barrel. delete The method according to claim 1,
Wherein a part of the center axis direction of the first wing and the center axis direction of the third wing are partially overlapped with each other and the other side of the central axis direction of the third wing and the center axis direction of the second wing And the one side of the direction is partially overlapped with each other. The method according to claim 1,
Wherein the third wing is inclined toward a rotating direction so as to hold a mixture of the ground material and water between the third wing and the inner peripheral surface of the drum during the forward rotation of the drum. delete delete delete The method according to claim 1,
And a guide vane formed on the side of the free end of the second vane for closing the mixture during the forward rotation of the drum is mounted. The method according to claim 1,
Characterized in that the drum is reversibly rotatable. The method according to claim 1,
Wherein a tilt angle of the central axis of the drum is changeable. A frying machine according to any one of claims 1, 3, 4, 8, 9, 10 and 10, and a dehydrator, wherein the debris sucked by the frying machine is dehydrated And the dewatered sludge is dehydrated.

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