JPS596960B2 - fiber collection device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention primarily relates to a fiber extraction device for crushing banana trunks into pulp.

In recent years, due to the lack of wood, banana trees have to cut down the old trunks and harvest the newly grown trunks every year, but the old trunks are often discarded.

However, since banana trunks are rich in fiber, they are suitable as a raw material for pulp, and large quantities are produced every year. Processed by crushing with branches,
A separation device is known in which the fibers are extracted by leaking moisture and the core to the lower part of the processing chamber.

However, since this separation device separates water simply by stirring, it is insufficient to remove the water that is strongly attached to the fibers, and the remaining water may cause deterioration of the fibers. The problem is that it won't stop.

It was devised to separate them, and for this purpose the following technical measures were taken.

That is, the stem pieces introduced into the processing chamber are crushed between rotating processing teeth and fixed teeth, and the fibers are separated from the moisture and intermediate layer that leak down into the processing chamber. This is a fiber collecting device configured to take out the fibers, which is provided with a squeeze section for squeezing and squeezing the taken out fibers.

With this configuration, the present invention was able to obtain the following technical effects.

In other words, since the fibers taken out from the processing chamber are compressed and squeezed by the squeezing section, the moisture remaining in the fibers is sufficiently separated, thereby preventing deterioration of the fibers due to moisture adhesion. In addition, fibers that have been subjected to an appropriate compression action have a thin cross section and are well intertwined, and have properties suitable as pulp raw materials.

Next, the present invention will be explained based on an embodiment shown in the drawings. A drum-shaped processing cylinder 3 is rotatably supported by bearings 4 inside a processing chamber 2 having a hopper 1 at the upper end. A processing blade 5 is provided on the outer periphery of the processing cylinder 3.
Separation net 6 formed of a net or perforated plate with ... protruding from it
are installed in a separation chamber 7 formed inside the processing chamber 2 below the processing cylinder 3, and processing blades 5 are installed inside the processing chamber 2.
Fixed blade 8 rotates counterclockwise to...
The gutter-shaped banana trunk 9, which is fed from the hopper 1 into the processing chamber 2, is provided with a processing blade that rotates in the direction of the arrow A in Fig. 1. 5・・・・・・・・・5・・・・・・
Fixed blade 8 stands still...
...and is torn by the separation net 6, so that the fibers 10 constituting the trunk 9 and the intermediate layer that connects these fibers 10 are separated from each other, and the intermediate layer and A considerable part of the moisture contained in the trunk 9 is formed so that it passes through the small holes of the separation net 6 and falls into the separation chamber 7.

Furthermore, a lid 11 that can open the side of the processing chamber 2 and close the opening 2a is hinged to the processing chamber 2, and consists of an aperture press 14 that rotatably supports two aperture rollers 13, 13. The aperture part 15 is provided below the opening 2a, and the aperture hopper 14 is provided with cover parts 14a and 14b that contact the outer peripheries of the aperture rollers 13 and 13 with almost no gap. A drainage hole 14c is provided above the section 14a, and a guide plate 16 is attached to the separation chamber 7 to guide water overflowing from the drainage hole 14c to the separation chamber 7. Take it out from 2a and squeeze roller 1
Peeking into the aperture surfaces 3 and 13, the aperture roller 13 on the ■ side
When rotated with the operating handle 13a, the gears 17 fixed to these squeeze rollers 13, 13 and meshing with each other are opened.
, 17 rotate in opposite directions.
, 13, the fibers 10 pass while being squeezed and fall into the collection box 18 below, and the water squeezed out at this time flows down to the separation chamber 7 through the drain hole 14C.

Further, the processing cylinder 3 has a structure in which it is rotationally driven by a winding transmission mechanism 20 driven by a motor 19, and although not shown, the above-mentioned squeezing rollers 13, 13 are connected to this winding transmission mechanism 20.
A small opening 2a is provided at the corner of the processing chamber 2, and the fibers continuously separated in the processing chamber 2 are rotated using a winding transmission mechanism. It can also be constructed so that it is continuously taken out from the aperture rollers 13, 130 to the aperture surfaces.

Therefore, by cutting an old banana trunk into a length of, for example, several tens of CrrL, and inserting the cut trunk between, for example, two sets of rotating endless chains, a trough-shaped trunk 9 is formed.
・・・・・・・・・・・・・・・ is obtained.

Therefore, these trunks 9...
When the above-mentioned inventive device is fed into the hosopa 1, the rotating processing blade 5...... and the stationary fixed blade 8... ...and the trunk 9 is torn by the separation net 6 and separated into the fibers 10 and the intermediate layer, and the fine intermediate layer and moisture leak through the separation net 6 and enter the separation chamber 7. It will accumulate.

The fibers 10 from which the intermediate layer and a considerable amount of water have been separated are then taken out of the processing chamber 2 through the opening 2a by operating the handle 11a of the lid 11 to open the lid 11 as shown by the two-dot chain line in FIG. Therefore, by exposing the fibers 10 to the squeezing surfaces of the squeezing rollers 13, 130 and rotating the squeezing rollers 13, 13 in the direction of arrow B in FIG. 1, the fibers 10 will be sufficiently squeezed. The water that falls into the collection box 16 and is squeezed out from the fibers 10 at this time accumulates on the squeezing surfaces of the squeezing rollers 13 and 130 and flows down to the separation chamber 7 through the drainage hole 14c along the guide plate 16. It is something.

Further, a guide plate 16 is provided so as to be in sliding contact with the squeezing roller 13.
The tip can scrape off the residue adhering to the squeezing roller 13 during the squeezing operation.

The fine thread-like fibers 10 from which moisture, the intermediate layer, the epidermis, etc. have been sufficiently removed can be used as is as a raw material for paper.

[Brief explanation of drawings]

FIG. 1 is a vertical sectional side view showing one embodiment of the apparatus of the present invention, FIG. 2 is a front view thereof, and FIG. 3 is an explanatory diagram showing the state of pivoting of a processing cylinder used in the same apparatus. Description of symbols: 1...hopper, 2...processing chamber, 2a...opening, 3...processing cylinder,
4...Bearing, 5...Processing blade, 6
... Separation net, 7 ... Separation room, 8 ...
... Fixed blade, 9 ... Trunk, 10 ... Fiber, 11 ... Lid, 11a ... Handle, 1
2... Butterfly, 13... Squeezing roller,
13a...Operating handle, 14...Aperture hopper, 14a, 14b...Part of cover, 14c...Drain hole, 15... ... Throttle section, 16 ... Guide plate, 17 ... Gear, 18 ... Collection box, 19 ... Motor, 20 ... ...Wrap transmission mechanism.

Claims (1)

[Claims] 1. The stem pieces introduced into the processing chamber are crushed between the rotating processing teeth and fixed teeth, and the fibers are taken out after separating the filtrate and intermediate layer that leak down into the processing chamber. A fiber collecting device configured as above, further comprising a squeeze section for squeezing and squeezing the extracted fibers.