JP3151483U - Waste paper melting equipment - Google Patents

Abstract

A waste paper melting apparatus capable of effectively adjusting a pumping vane without removing the pumping vane from a rotor. A pumping tank is provided with a dissolution tank having an opening in the upper part and a rotary blade 8 rotatably mounted inside the dissolution tank, and the rotary blade 8 stirs water and the waste paper in the dissolution tank. In the used paper melting apparatus to which the vane 80 is attached, the pumping vane 80 includes a first pumping vane 91 that generates a spiral flow so that the used paper melted in the melting tank is directed toward the rotor, and the used waste paper in the radially outward direction. The first and second pumping vanes 91 and 92 were detachably attached to the upper surface of the rotary blade 8 by the fastening member 82 from the opening of the dissolution tank. [Selection] Figure 10

Description

  The present invention relates to a used paper dissolving apparatus for breaking up and pulping used paper.

  The low-concentration pulper (used paper melting device) mainly includes a dissolution tank for disaggregating and pulping used paper, a rotating rotor, and a screen plate having many openings. The rotor is provided with a plurality of rotor blades, and pumping vanes (stirrer blades) for stirring water and waste paper in the dissolution tank are integrally provided above the rotor blades, respectively. Yes. Thereby, by rotating the rotor in the dissolution tank, a vortex is generated in the dissolution tank, and water (water, chemicals, etc.) and waste paper in the dissolution tank are agitated (for example, see Patent Documents 1 to 3). .

  It is known that the stirring force described above varies depending on the height of the pumping vane. For this reason, when the disintegration force of the used paper melting apparatus is improved or the stirring force is reduced due to wear, the height of the pumping vane is usually adjusted.

JP 2008-291377 A JP 2008-291378 A JP 2008-291379 A

  However, since a general pumping vane is integrated with a rotor blade of a rotor, adjustment and correction thereof are difficult. In order to make this adjustment, it is necessary to remove the rotor from the used paper melting apparatus.

  The present invention has been made in view of the above-described circumstances, and is to provide a used paper melting apparatus capable of effectively adjusting a pumping vane without removing a rotor from the used paper melting apparatus.

  In order to solve the above-mentioned problems, the present invention includes a dissolution tank having an opening on the upper side, and a rotary blade rotatably attached to the inside of the dissolution tank. In the used paper melting apparatus to which the pumping vane is attached, the pumping vane includes a first pumping vane that generates a spiral flow so that the used paper dissolved in the melting tank is directed to the rotor, and the used recovered paper The first and second pumping vanes are detachably attached to the upper surface of the rotor blade from the opening of the dissolution tank by a fastening member. It is characterized by that.

  Further, adjustment means for adjusting the height positions of the first and second pumping vanes are provided individually.

  Furthermore, the dividing position of the first and second pumping vanes may be approximately the center in the longitudinal direction of the rotor blade.

  According to the used paper melting apparatus 1 according to the present invention, the pumping vane includes a first pumping vane for generating a spiral flow so that the used paper melted in the melting tank is directed to the rotor, and the used waste paper in a radially outward direction. Since the first pumping vane is divided into the second pumping vane that generates the discharge flow to be sent to the pipe, adjusting the first pumping vane effectively increases the strength of the spiral flow without affecting the strength of the discharge flow. In addition, by adjusting the second pumping vane, the strength of the discharge flow can be effectively adjusted without affecting the strength of the spiral flow. In addition, since the first and second pumping vanes are detachably attached to the upper surface of the rotary blade from the opening of the dissolution tank by a fastening member, the position of the first and second pumping vanes can be adjusted and replaced. Removal can be performed by loosening the fastening member from above the opening. As a result, it is not necessary to remove the rotor from the used paper melting apparatus, and adjustment and replacement work can be easily performed.

It is a conceptual diagram of the used paper melter in which the pumping vane for pulper concerning the present invention was incorporated. It is AA sectional drawing of FIG. 1, Comprising: A rotor is shown from the upper surface. It is sectional drawing which shows the cutting action of the waste paper piece by a rotor. It is sectional drawing which shows the cutting action of the waste paper piece by a rotor. It is sectional drawing which shows the cutting action of the waste paper piece by a rotor. It is the top view which looked at the rotor attached to the used paper melting apparatus from the upper side. It is BB sectional drawing of FIG. FIG. 7 is a top view of the screen plate as viewed from above with the rotor removed from FIG. 6. It is a side part expanded sectional view of a rotary blade. It is the perspective view which looked at the pumping vane from diagonally upper side.

Hereinafter, a pumping vane for a pulper rotor according to an embodiment of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a side view showing a melting tank 2 of the used paper melting apparatus 1, and FIG.

Generally, in order to reuse collected collected paper, the used paper melting apparatus 1 is used as an apparatus for melting used paper.
As shown in FIG. 1, the used paper melting apparatus 1 has a D shape when viewed from above, with a cylindrical side portion cut out by a vertical plate 3. This used paper dissolving apparatus 1 is disposed at the center of the bottom surface of the dissolving tank 2 and creates a swirling flow as shown in FIG. A waste paper cutting rotor 4 for cutting the melted waste paper, and a screen plate 5 disposed below the rotor 4 and formed with a number of round holes and the like for filtering the cut waste paper pieces are formed.

Further, as shown in FIG. 1, the used paper melting apparatus 1 includes a conveyor 6 that conveys used paper or a bale obtained by stacking and compressing used paper outside the melting tank 2. The bale conveyed by the conveyor 6 is introduced into the dissolution tank 2 as indicated by an arrow from an opening 7 formed in the upper part of the dissolution tank 2.
The dissolution tank 2 is charged with dissolution water or the like through the opening 7 simultaneously with the bale.

And the used paper and water thrown into the dissolution tank 2 are used for the used paper cutting rotor 4 (
It is rotated in the dissolution tank 2 by a swirl flow (which will be described later in detail, a spiral flow and a discharge flow) generated by the rotation in the direction of the arrow of the rotor 4. As a result, the used paper and water introduced into the dissolution tank 2 are mixed by a swirling flow, and the used paper is separated into fine used paper pieces 13 and sucked downward of the rotor 4 by the vortex at the center.

3 to 5 are cross-sectional views for explaining the cutting action of the used paper piece 11 by the rotor.
The separated waste paper pieces 11 are further finely cut and melted by cutter blades 9, 61, 62 (details will be described later) which are rotary blades provided in the rotor 4. When the waste paper pieces 13 further finely cut in the dissolution tank 2 are melted and formed into a slurry, a large number of eyes formed on a single disk-shaped screen plate 5 disposed below the rotor 4. It is filtered through pores (details will be described later).

  6 is a top view of the rotor 4 attached to the used paper melting apparatus 1, and FIG. 7 is a cross-sectional view taken along the line BB of FIG. FIG. 8 is a top view of the screen plate 5 with the rotor 4 removed from FIG. Further, FIG. 9 is an enlarged side sectional view of the rotor blade 8, and FIG. 10 is a perspective view of the pumping vane 80 as viewed obliquely from above.

As shown in FIG. 2, an annular base 40 having a hollow interior is attached to the bottom surface in the dissolution tank 2. A screen plate mounting plate 41 is disposed on the upper surface of the base 40. A rotor body 21 of the rotor 4 is rotatably supported at the center of the base 40.
The rotor main body 21 constitutes a rotation center portion, a cylindrical center member 22 fixed to a rotation shaft (not shown) such as a rotation motor (not shown), and a positioning-use cylindrical key 23. And a rotary blade mounting member 25 fixed by a mounting bolt 24 and the like, and a six-blade rotary blade 8 fixed to the rotary blade mounting member 25 by fixing means such as welding.

In FIG. 7, reference numeral 27 denotes a hemispherical cap that seals the center member 22 from above. The cap 27 is fastened to the rotor blade mounting member 25 by mounting bolts 28. Reference numeral 29 in FIG. 7 denotes a fastening bolt that fastens the central member 22 of the rotor body 21 to a drive shaft such as a rotary motor (not shown).
Needless to say, sealing means (not shown) is disposed in the vicinity of the rotation center portion of the rotor main body 21 so that liquid or the like does not leak from the rotation center portion of the rotor main body 21.

As shown in FIG. 8, the screen plate 5 includes a fan-shaped screen plate portion 52 that is divided into a plurality (six) of sheets along the circumferential direction. In the screen plate portion 52, many eye holes 51 that function as fixed blades are formed in portions other than the outer peripheral edge of the screen plate 5.
Each screen plate portion 52 is provided with a plurality of fastening hole portions 53 at the periphery thereof, and the screen plate mounting plate 41 is provided with a screw hole at a position corresponding to the fastening hole portion 53. A fastening member 73 such as a bolt is inserted into the fastening hole 53 and fastened to the screw hole of the screen plate mounting plate 41, so that each clean plate portion 52 is attached.

  Further, as shown in FIG. 7, a discharge space S for the cut waste paper pieces is formed inside the base 40, and the waste paper pieces 13 (see FIGS. 4 and 5) cut by the rotor 4 are the discharge spaces. It is discharged to a subsequent process as indicated by an arrow H via S. A hole 41 a for guiding the cut waste paper piece 13 to the discharge space S is also formed on the inner periphery of the screen plate mounting plate 41 described above.

As shown in FIGS. 2 and 6, the rotor 4 has six rotating blades 8.
As shown in FIG. 9, on the lower surface (back surface) of these rotary blades 8, a first cutter blade 9 disposed in a curved shape so as to form a tip edge of the rotary blade 8 and a linear shape behind the first cutter blade 9. A second cutter blade 61 disposed on the second cutter blade 61 and a third cutter blade 62 disposed adjacent to the second cutter blade 61 are detachably disposed. These cutter blades 9, 61, 62 function as rotating blades.

  As a result, as shown in FIGS. 4 and 9, when the used paper piece 11 melted in the melting tank 2 is fitted in the eye holes 51 of the screen plate 5, the rotating blades rotate and move in the direction of arrow E in FIG. 9. The waste paper piece 11 is cut by sliding contact between the cutter blades 9, 61, 62 formed integrally with the screen 8 and the upper edge 51 of the eye plate 51 of the screen plate 5 (see FIG. 5). And is dropped from the eye 51 and filtered.

On the other hand, as shown in FIGS. 6, 7 and 9, pumping vanes 80 (stirring blades) are provided on the upper surfaces 26 e (surfaces) of the rotary blades 8. The pumping vane 80 extends from the cap 27 toward the tip side along the shape of the rotary blade 8. As shown in FIG. 9, the cross-sectional shape of the surface perpendicular to the extending direction of the pumping vane 80 is substantially L-shaped, and the pumping vane 80 is attached to an attachment portion 80 a attached in a manner in contact with the upper surface 26 e. The wing portion 80b protrudes upward from the upper surface 26e and stirs the water and the like in the dissolution tank 2 and the waste paper.
The attachment portion 80a and the wing portion 80b may be joined by welding or the like, or may be integrally formed.

  As shown in FIGS. 9 and 10, a plurality of bolt insertion holes 81 are formed in the mounting portion 80 a at intervals in the extending direction. On the other hand, a screw hole 83 is also provided on the upper surface 26 e of the rotary blade 8 at a position corresponding to the bolt insertion hole 81. The pumping vane 80 is attached by inserting the fastening bolt 82 into the bolt insertion hole 81 from the upper side, which is the opening 2a side of the dissolution tank 2, and screwing the fastening bolt 82 into the screw hole 82. The diameter of the bolt insertion hole 81 described above is formed to be larger than the diameter of the fastening bolt 82, and the position of the wing part 80b can be adjusted by shifting the position of the attachment part 80a in the left and right and front and rear directions by this gap. It has become.

For example, an adjustment shim member (adjustment means) can be inserted between the attachment portion 80a and the upper surface 26e. Thereby, the position of the height direction of the wing | blade part 80b of the pumping vane 80 can be adjusted freely. In addition, the height adjustment of the pumping vane 80 is not restricted to the method performed using a shim member. For example, an elastic body such as a compression spring is interposed between the pumping vane 80 and the upper surface 26e of the rotor blade 8, and this elastic body is configured to urge the pumping vane 80 upward. The height of the pumping vane 80 may be changed by the fastening force. Moreover, the position of the height direction of the pumping vane 80 may be moved up and down using a jack bolt that moves the pumping vane 80 in the vertical direction.

As shown in FIG. 10, the pumping vane 80 is divided into a first pumping vane 91 located on the cap 27 side and a second pumping vane 92 located on the tip side of the rotor blade 8. . The first pumping vane 91 and the second pumping vane 92 are divided at a substantially central position in the longitudinal direction of the rotary blade 8, and are attached in such a manner that the blade portions 80b are connected in a continuous manner. ing. The first and second pumping vanes 91 and 92 are fixed to the rotary blade 8 independently by the fastening bolts 82 described above. That is, the first and second pumping vanes 91 and 92 can be attached / detached or adjusted in height and adjusted in attachment position independently of each other.
In the pumping vane 80, as shown in FIG. 6, first and second pumping vanes 91 and 92 may be provided every other one of the six rotor blades 8, and all the rotor blades 8 may be provided. The first and second pumping vanes 91 and 92 may be provided.

The first pumping vane 91 extends from the cap 27 to substantially the center of the rotary blade 8 along the front side 91a in the rotation direction T (see FIG. 10) of the rotary blade 8. With this shape, the wing portion of the first pumping vane 91 generates a spiral flow so that the used waste paper is directed toward the rotor.
On the other hand, the second pumping vane 92 extends from the front side 92a to the rear side 92b of the rotary blade 8 from the substantially central portion of the rotary blade 8 toward the tip. With this shape, the wing portion of the second pumping vane 92 generates a discharge flow through which the used waste paper is sent in the radially outward direction.

  According to the pumping vane according to the embodiment of the present invention, since the first pumping vane 91 and the second pumping vane 92 are configured in a divided structure, the first pumping vane 91 is adjusted and discharged. The strength of the spiral flow can be adjusted without affecting the strength of the flow, and the second pumping vane 92 can be adjusted to adjust the strength of the discharge flow without affecting the strength of the spiral flow. Can be adjusted. Therefore, the strength of the spiral flow and the discharge flow can be adjusted efficiently and effectively as compared with the pumping vane not having the split structure.

  Further, since the first and second pumping vanes 91 and 92 are detachably attached to the upper surface 26e of the rotor blade 8 from the opening 2a of the dissolution tank 2 by the fastening bolt 82, the first and second pumping vanes 91, Adjustment, replacement, and removal of the position 92 can be performed by loosening the fastening bolt 82 from the upper side of the opening 2a. As a result, it is not necessary to remove the rotor 4 from the used paper melting apparatus 1, and adjustment and replacement work can be easily performed.

  Further, in order to adjust the height positions of the first and second pumping vanes 91 and 92, adjustment means including adjustment shims are individually provided, so that only the tightening bolt 82 is loosened to work. The height position can be adjusted with. Therefore, the height and position of the first and second pumping vanes 91 and 92 can be adjusted without removing the rotor 4 from the used paper melting apparatus 1.

  In addition, since the dividing positions of the first and second pumping vanes 91 and 92 are substantially the center in the longitudinal direction of the rotary blade 8, the balance between the spiral flow and the discharge flow can be made uniform. As a result, a sufficient spiral flow and discharge flow can be obtained.

The fusion splicer and the setting method of the fusion splicer according to the embodiment of the present invention have been described above. However, the present invention is not limited to the above-described embodiment, and is based on the technical idea of the present invention. Various modifications and changes are possible.
For example, in the present invention, six rotor blades 8 are used, but the number can be determined as appropriate depending on the structure. In addition, the first and second pumping vanes 91 and 92 are attached to the upper surfaces 26e of all the six rotor blades 8, but they may be attached by thinning out as necessary. That is, it can be arbitrarily determined as long as a sufficient spiral flow and discharge flow can be obtained.

  Further, although the pumping vane 80 is divided into two parts, it may be divided into three parts or more in order to adjust so as to obtain a sufficient spiral flow and discharge flow. Even in this case, the pumping vane can be finely adjusted by adjusting the height and position independently.

DESCRIPTION OF SYMBOLS 1 Waste paper melting apparatus 2 Melting tank 2a Bottom face 3 Vertical plate 4 Rotor for waste paper cutting (rotor)
DESCRIPTION OF SYMBOLS 5 Screen plate 6 Conveyor 7 Opening 8 Rotary blade 9 1st cutter blade 11 Waste paper piece 13 Cut waste paper piece 21 Rotor main body 22 Center member 23 Cylindrical key 24 Mounting bolt 25 Rotary blade attachment member 27 Cap 26e Upper surface of rotary blade 28 Mounting bolt 40 Base plate 41 Screen plate mounting plate 51 Eye hole 52 Screen plate portion 53 Fastening hole 61 Second cutter blade 62 Third cutter blade 73 Fastening member 80 Pumping vane 80a Mounting portion 80b Wing portion 81 Bolt insertion hole 82 Fastening bolt (fastening member)
83 Screw hole 91 First pumping vane 91a Front side 92 Second pumping vane 92a Front side 92b Rear side S Discharge space

Claims (3)

Waste paper having a dissolving tank having an opening above and a rotating blade rotatably attached to the inside of the dissolving tank, and a pumping vane for stirring the water and the used paper in the dissolving tank to the rotating blade In the melting device,
A first pumping vane that generates a spiral flow so that the waste paper melted in the melting tank is directed to the rotor, and a second pumping vane that generates a discharge flow that sends the melted waste paper radially outward. The used paper melting apparatus is characterized in that the first and second pumping vanes are detachably attached to the upper surface of the rotary blade from the opening of the melting tank by a fastening member.   2. The used paper melting apparatus according to claim 1, wherein adjustment means for adjusting the height positions of the first and second pumping vanes are provided individually.   The used paper melting apparatus according to claim 1 or 2, wherein the first pumping vane and the second pumping vane are divided at substantially the center in the longitudinal direction of the rotary blade.

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