JPH09250093A - Fiber-in-white water recovering machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the subject machine having such advantages that paper stock is washed by rubbing through the revolution of blade plates, both the washing effect and fiber-in-white water recovering effect are outstanding, there is no need of using much water and chemicals, higher degree of bleaching and more efficient fiber-in-white water recovery can be accomplished with a relatively small amount of water, paper stock resident time can be regulated correspondingly to the degree of paper stock staining because of enabling the tilt angle of a drum to be regulated, and troubles seldom occur because of being simple in scheme. SOLUTION: This fiber-in-white water recovering machine is so designed that a cylindrical drum 10 with the rate of hole area of 70-97% and one end open is lined with a wire mesh 15, the delivery port of a paper stock feed pipe 10 extendedly located from the opening end to the other end of the drum 10 is set up inside the drum 10, and the cylindrical drum 10 is equipped revolvably inside the recovering machine proper. Besides, there is equipped a relevant apparatus 7 so as to enable the opening end side of the cylindrical drum 10 to be vertically moved with one end of the basal stand 5 of the recovering machine proper serving as support 6.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for recovering paper stock processed by a deinking apparatus for papermaking raw materials for recycling various waste paper such as printing paper, and further collecting white water fibers which have been subjected to a deinking treatment of nearly 100%. The present invention relates to a white water fiber collecting machine.

[0002]

2. Description of the Related Art A conventional white water fiber collecting machine has been known in which a white water fiber is scraped off by removing the contaminated moisture by repeatedly compressing the white water fiber so as to squeeze out. .

[0003]

However, in the above-mentioned prior art, a large amount of water is required to improve the recovery effect, and it is difficult to scrape the white water fibers after the compression washing. There was a point.

[0004] In view of this point, the present invention has a simple configuration,
The amount of water used is reduced, and the water can be collected at all times without stopping the device for recovery.The white wire fibers can be easily collected by moving to the open end as soon as possible with the rotating drum liner wire mesh. It is an object of the present invention to provide a white water fiber collecting machine that requires a minimum power.

[0005]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and employs the following technical means. Claim 1
In the invention described above, a technical means is adopted in which a wire net is lined on a cylindrical drum whose one end is open with a porosity of 70% to 97%, and the cylindrical drum is rotatably arranged in the main body of the recovery machine.

According to the second aspect of the invention, in addition to the white water fiber recovering machine of the first aspect, the discharge port of the stock feed pipe extending from the open end to the other end of the drum is arranged in the drum. We adopted the technical means.

According to a third aspect of the invention, in addition to the white water fiber recovery machine according to the first or second aspect,
A technical means is adopted in which an appropriate number of vanes are provided at the other end of the cylindrical drum.

According to a fourth aspect of the present invention, in addition to the white water fiber recovery machine of the third aspect, the other end of the cylindrical drum is formed into a handle-shaped end plate having radial ribs, and a wire mesh is lined inside the end plate. The technical means of providing an appropriate number of blades was adopted.

According to a fifth aspect of the present invention, in addition to the white water fiber recovery machine according to any one of the first to fourth aspects, the white water fiber recovery machine is externally provided close to the inner peripheral surface of the drum. Therefore, the technical means of providing a wire mesh cleaning nozzle is adopted.

According to a sixth aspect of the present invention, in addition to the white water fiber recovery machine according to any one of the first to fifth aspects, fresh water is introduced into the drum from the outside through the white water fiber recovery machine body. The technical means of installing a replenishment pipe was adopted.

According to a seventh aspect of the present invention, in addition to the white water fiber recovery machine according to any one of the first to sixth aspects, a cylinder is formed with one end of the base of the main body of the white water fiber recovery machine as a fulcrum. We adopted a technical means of providing a vertical movement device so that the open end side of the drum can be moved up and down.

According to an eighth aspect of the present invention, in addition to the white water fiber recovery machine according to any one of the first to seventh aspects, a technique of making a cylindrical drum and / or a liner wire mesh separable Adopted means.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention is to manufacture a cylindrical drum having a simple construction and a hole ratio of 70% to 97%, for example, a punched metal or a ring-shaped vertical member and a linear horizontal member combined in a lattice. At one end, a handle-shaped end plate provided with radial ribs was provided, and a wire net was attached to the end plate, thereby increasing the surface area of the wire net and increasing the detergency. In addition, a nozzle is arranged so that high-pressure washing water can be sprayed close to the wire mesh, so that the stock collides with a blade plate provided on a handle-shaped end plate provided with radial ribs at one end of a cylindrical drum. By injecting and assisting the rotation of the cylindrical drum itself, the power source can be saved and downsized, and the case body can be tilted. And weakened, and the white water fiber can be recovered at the same time as the accuracy of the cleaning degree is further improved.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 is a schematic block diagram showing an embodiment of the present invention. A stock which is concentrated from a deinking type deinking apparatus 1 and has a raw material content of approximately 30% and a water content of 70% is poured into a conventionally known disintegrator 2, and fresh water (industrial water) is replenished, and the mixture is decomposed and stirred. The decomposed and stirred stock is flowed into a conventionally known screen 3 by a pressure pump to remove foreign matter and miscellaneous substances (especially those having a high specific gravity). A blade of a stock material in which a wire mesh 15 is lined on the inner peripheral surface of a cylindrical drum 10 made of a handle-shaped end plate provided with radial ribs and a punched metal 14 at one end (drive side) of the white water fiber collecting machine 4 of the present invention. Board 12
The cylindrical drum 10 is rotated by the power from a driving device 11 so as to collide with fresh water (industrial water) and white water (reused water, etc.) to wash the stock. It is possible to recover white water fibers having a raw material content of 7% and a water content of about 93%. Further, the present invention can be applied to not only waste paper but also virgin paper.

Next, referring to FIGS. 2 and 3, one embodiment of the white water fiber recovery machine 4 of the present invention will be described in detail. The white water fiber recovery machine 4 mounted on the base 5 is the above-mentioned base. One end of the table 5 is rotatably supported with a fulcrum 6 and the other end (corresponding to the white water fiber outlet side in this embodiment) is supported by a vertical movement device 7 such as an air spring, a piston cylinder, a jack, and the like. Foundation 8
The whole white water fiber recovery machine 4 is placed on the top so that it can be inclined. A driving device 11 is attached to one end of the base 8 on the fulcrum 6 side.
(Small power motor, etc.), and the wire mesh 15 of the white water fiber collecting machine 4 is lined through a bearing.
A pipe 13 having a large number of injection holes for fresh water (industrial water) at the center at the same time that the cylindrical drum 10 can be rotated by being fitted and fixed to a cylindrical drum 10 made of, for example, 7% punch metal. Is provided via a rotary joint.

The cylindrical drum 10 has an opening ratio of 70.
% To 97%, for example, a punch metal 14 is formed in a cylindrical shape, a wire mesh 15 is lined, and an appropriate number of blades 12 (about 10 are optimal) are provided on the driving machine 11 side. In addition, a handle-shaped end plate 22 provided with radial ribs is provided, and a wire mesh 15 is also lined on the inner surface of the end plate 22. It goes without saying that the mirror plate 22 may be a blind mirror plate.

Further, in order to make the rotation of the cylindrical drum 10 smooth, one end of the cylindrical drum 10 is further provided with a roller 16 at an appropriate position on the case body 9. The case body 9 is provided so as to cover the entire cylindrical drum 10, and an appropriate number of donut-shaped partition plates 17 having an appropriate height (about 100 mm) are provided at appropriate intervals on the inner periphery of the cylindrical drum 10.
One end is provided with a white water fiber discharge port 18 and the like. And dirty water such as ink, glue, wax,
Needless to say, the waste liquid is discharged from the waste liquid outlet 23. The stock supply pipe 19 for the stock supplied from the screen 3 is:
A nozzle is provided, and the nozzle is provided so as to be capable of colliding and jetting with a group of vane plates 12 provided on the end plate in a cylindrical shape. Further, the respective pipes of the cleaning pipe 20 and the replenishing white water pipe 21 are opened at appropriate positions of the cylindrical drum 10 as a large number of nozzle-shaped holes. 24 is a return port.

In this white water fiber recovery machine, the stock is discharged from the raw material nozzle of the stock supply pipe 19 into the rotating cylindrical drum 10, receives the rotation of the cylindrical drum 10, and is dewatered while being kneaded. As a result, the paper stock itself receives a sufficient rubbing and washing effect, and ink and chemicals between fibers are rubbed and loosened, making it easier to separate. Demonstrate. Moisture is stored in the wire mesh 15 of the cylindrical drum 10.
The paper material is discharged to the outside of the system, and the paper material is rubbed in the inclined cylindrical drum 10 and is washed as soon as possible, and gradually goes to the white water fiber discharge port 18.

Next, a mechanism for inclining the entire white water fiber collecting machine 4 was provided in order to adjust the degree of washing in accordance with the dirt condition of the paper material supplied to the white water fiber collecting machine 4. This will be described in more detail. A fulcrum 6 is provided at one end of the base 5 so as to be rotatable, and a vertical movement device 7 such as an air spring, a piston cylinder, a jack, a rack and a pinion is provided at the other end. The opening side of the drum 10 opposite to the blade plate 12 group moves up and down so that the inclination angle can be adjusted. Usually, the range of the inclination angle is optimally in the range of 2 ° to 5 ° in use.

In order to divide the cylindrical drum and / or the lining wire mesh, the cylindrical drum lined with the wire mesh is sliced into rings, and the flanges are fixed to the respective ends, and the cylinder drums are sliced adjacent to each other with bolts and nuts. Connect and fix each other. Alternatively, the cylindrical drum and the wire mesh are individually divided and made detachable with a detachable metal fitting. In addition, it may be divided not only into a slice but also in a circumferential direction. By making such division possible, it is very effective for partial repair.

As described above, the entire cylinder including the end plate 22 is lined with the metal net 15 so that the cylindrical drum 10 can be rotated. Further, one end of the cylindrical drum 10 is provided with a group of blade plates 12 to wash the metal net 15. However, the shape of the cylindrical drum 10 does not have to be a cylinder, and a polygonal shape or the like is also conceivable as long as it collects white water fibers whose stains are decomposed by stirring the stock while replenishing water. Further, in the case of a cleaning paper material containing a large amount of chemicals and having poor drainage, provision of a donut-shaped partition plate allows the partition plate to temporarily stop the stay and prolong the residence time. This allows
Efficiency of drainage can be improved while the stock blocked on the partition plate is gradually accumulated and gets over. Further, if only fresh water is used as the replenishing water, the degree of cleaning can be further increased. However, it goes without saying that the effect can be sufficiently improved by using only the reused water.

[0022]

According to the present invention, the following effects can be obtained based on the above configuration. (1) A handle-shaped end plate provided with radial ribs at one end of the drum was provided, a wire mesh was lined, and a filtration area was enlarged to increase the cleaning power and the recovery power. (2) The rotation of the blades causes rubbing and washing of the stock,
The cleaning effect rises remarkably. (3) In the case of cleaning stock that contains a large amount of chemicals and does not drain well, a donut-shaped partition plate can be provided.
Once stopped by the partition plate, the residence time can be lengthened. As a result, the efficiency of drainage can be improved while the stock blocked by the partition plate is gradually accumulated and gets over. (4) The amount of lost paper is small and the yield is improved. (5) The mesh of the wire mesh can be freely selected. (6) The wire mesh can be easily replaced with little maintenance. (7) The use of chemicals such as deinking agents and water is small,
In addition, the bleaching degree can be increased with a small amount of water. (8) Since the stock collides with the blades in the drum, the rotation of the drum is assisted, and the power motor can be made smaller accordingly. (9) Since the inclination angle of the drum can be adjusted, the residence time of the stock can be adjusted, and accordingly, the adjustment can be performed according to the stain of the stock. (10) Very compact and does not take up installation space. (11) Since the configuration is simple, a failure is unlikely to occur.

[Brief description of drawings]

FIG. 1 is a schematic block diagram illustrating a use state of a white water fiber recovery machine of the present invention.

FIG. 2 is a schematic plan view of the white water fiber collecting machine of the present invention.

FIG. 3 is a schematic side view of the white water fiber collecting machine of the present invention.

[Explanation of symbols]

1 deinking device 2 disintegrator 3 screen 4 white water fiber collecting device 5 base 6 fulcrum 7 vertical movement device 8 base 9 case body 10 cylinder Drum 11 ‥‥ drive machine 12 ‥‥
Blade 13 ‥‥ Pipe with many spray holes for fresh water 14
Punch metal 15 ‥‥ Wire mesh 16 ‥‥
Roller 17 ‥‥ Partition plate 18 ‥‥
White water fiber outlet 19 ‥‥ Paper supply pipe 20 ‥‥
Cleaning pipe 21 ‥‥ Refill white water pipe 22 ‥‥
End plate 23 ‥‥ Waste liquid outlet 24 ‥‥
Return

Claims (8)

[Claims] 1. A white water fiber recovery, characterized in that a cylindrical drum having a porosity of 70% to 97%, one end of which is open, is lined with a wire mesh, and the cylindrical drum is rotatably disposed in the recovery machine body. Machine. 2. The white water fiber collecting machine according to claim 1, wherein a discharge port of a stock material supply pipe extending from the open end of the drum to the other end is disposed in the drum. 3. The white water fiber recovery machine according to claim 1 or 2, wherein an appropriate number of blades are provided at the other end of the cylindrical drum. 4. The white water according to claim 3, wherein the other end of the cylindrical drum is formed into a handle-shaped end plate having radial ribs, and a wire mesh is lined on the end plate to provide an appropriate number of blade plates. Fiber recovery machine. 5. A wire mesh cleaning nozzle is provided from outside so as to be close to the inner peripheral surface of the drum through the white water fiber recovery machine main body, and any one of claims 1 to 4 is provided. White water fiber recovery machine described. 6. The white water fiber recovery machine according to claim 1, wherein a fresh water replenishing pipe is provided from the outside through the white water fiber recovery machine body into the drum. 7. The vertical movement device is provided so as to vertically move the open end side of the cylindrical drum with one end of the base of the white water fiber recovery machine main body as a fulcrum. The white water fiber recovery machine according to item 1. 8. The white water fiber recovery machine according to any one of claims 1 to 7, wherein the cylindrical drum and / or the lining wire mesh is separable.