JPS6090085A - Thickness sorter - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a thickness sorting device for sorting flat objects such as wood chips according to their thickness. A screen with a mesh is used to separate items that are large enough to pass through the screen and items that are not large enough to pass through. When this type of conventional screen is used to screen flat objects such as wood chips, the flat surface comes into contact with the vibrating screen, so sieving can only be done by the size of the flat surface, and sieving by thickness is not possible.

However, in many cases, it is necessary to sieve by thickness rather than by sieving by the size of the flat surface.

Specifically, the above-mentioned Mokukan chip is 2! ;mmX, 25m+
The standard size is n x mm, and the conventional equipment can
Evening m m x 2! ; m The size of the m-plane can be sieved within a range that does not cause any problem in the subsequent pulping process. However, in the case of kraft pulping (referred to as KP method), which is the most commonly used method for pulping zero-phase chips, zero-phase chips are steamed in a chemical solution under high pressure, and the lignin content that binds cellulose 1[1i] is removed. However, if the thickness of the pulp is too thick, the high-temperature chemical solution will not penetrate into the pulp, and the pulp will contain undigested solid knots. If the steaming time is long enough to avoid including these solid knots, the other frizzy zero-phase chips will be overcooked, the semi-cellulose component that is easily altered by chemicals will be decomposed, the red clay will become worse, and unnecessary heat energy will be consumed. It is uneconomical as it requires chemicals. Therefore, if wood chips with a certain thickness or more can be selected, it is possible to take them out and process them into two-sided slices, or to make cracks to allow the chemical solution to penetrate more easily.

Furthermore, it has been suggested that a desk screen may be used for the above-mentioned thickness selection. This desk screen is as shown in FIGS. 5 and 4, and has a large number of disks 52 rotated by parallel shafts 51, 51, 51, . . . The respective disks 52 are located alternately by approximately the radius thereof, and the disks 52,5 are arranged alternately.
2. The interval C1 of 52... serves as the screen, and each shaft 51 rotates in the same direction, and the disk 5
The raw material introduced onto the screen 2 is sieved while being sequentially sent in the rotational direction by the rotation of the shaft 51 or the disk 52. but,
As a result of experiments, this desk screen has many cases in which only the oblique plane moves in contact with the disk 52, and the efficiency of the sieving part is low.In addition, there is a trough at the lap point between the disk 52 and the disk 52 of the adjacent shaft 51. However, it has been found that an oversized product rotates in this trough, making it difficult to eject J1 and resulting in a decrease in efficiency.

Therefore, the present invention is a new thickness sorting device that solves the above two drawbacks.

Hereinafter, the present invention will be described in detail with reference to embodiments shown in the accompanying drawings.

Figure t4J, '2, ', 2 is a vertical frame.

On these vertical frames 2, 2, a long comb plate 1 having a corrugated upper side 11 is slanted so that its longitudinal tip side is downward, and a large number of comb plates are arranged in parallel at appropriate intervals. Thus, a row of inclined fence partition plates 10 is formed.

The above-mentioned comb dividing plate 1 is arranged so that the distance from the JKi portion of one peak of the waveform on the two sides 11 to the top of the next peak, that is, the pitch P of the waveform, is the original X1 to be sorted. It is not larger than the maximum dimension of the flat surface of the average angler-sized product of H (hereinafter simply referred to as the maximum dimension of the raw material).

This is because if the pitch P of the waveform on the upper side 11 is small compared to the maximum dimension of the raw material, the raw material aM will rest on two or more peaks of the waveform on one comb plate 1, and This is because the height difference due to the phase change of the waveform on the upper side 11 of the column plates 1, 1 cannot be effectively obtained. In addition, the intervals between the parallel comb plates 1゜1.1... are set so that the distance raC2 between every comb plate and the next one is larger than the maximum dimension of the raw material. It is placed simultaneously between a plurality of comb plates 1, 1 that do not cause a phase change in the waveform, and the difference in height of the upper side 11 of the fence plate 1 in the middle does not have any effect on the raw material H. It prevents that.

Furthermore, each of the above-mentioned fence sections 1 is provided with slopes 12 and 12 whose lower ends are made thicker in order, but this is due to the fact that the comb sections 1 are long, so the strength is 6 stones greater than the comb section. The higher the value of II, the more likely it is for raw materials to get stuck between the adjacent fence plates 1 and 1. Therefore, the raw material By widening the direction downward, it is ensured that it passes downward. As shown most clearly in Fig. 3, the wall thickness of the fence section 1 is constant from the upper end of the fence section 1 to the bottom of the valley, and the thickness of the fence section 1 is kept constant, and the waveform phase is stabilized. The distance C between the upper ends of each comb plate 1 is set to zero so as not to change.

All or part of each comb plate 1 is configured to reciprocate the comb plate 1 in the longitudinal direction so that the waveforms on the upper side 11 are located at the peaks and troughs of the waveform on the upper side 11 of the four-piece plate 1. It is connected to a drive source 3 whose relationship is mutually shifted.

In the illustrated example, the spare parts of each fence section 1 are fixed to the vertical frames 2, 2, and the remaining parts are connected to the drive source 3. The fence partition is
As shown most clearly in FIG. 3, a long hole 13 is provided on the tip side (right side in FIG. 2), and within this long hole 13 there is a vertical frame 2.
A shaft 7 fixed above is inserted through it, and the other end is connected to the shaft 6.

The shaft 6 is movably held by bearings 5, 5 which guide the shaft 6 in the longitudinal direction of the comb plate 1 through elongated holes, although it is not necessarily shown or clearly shown in the figure. This shaft 6 is connected to the crank mechanism 3a of the drive source 3. Note that another drive source may be connected to the comb plates 1 fixed at every other comb plate so that the comb plates 1 reciprocate in opposite directions every other comb plate. Furthermore, instead of the structure in which the comb plates 1 are arranged side by side as shown in the figure, the fence plates 1 may be placed side by side on a frame body, and the frame body may be reciprocated by an appropriate drive source.

And, above the inclined upper end side of the inclined fence division plate row 1o,
A raw material supply device 20 is arranged. This raw material, supply device 2
0 uses a rotary feeder, etc., and it is desirable to supply raw materials at a constant L1, but if the shoe 1-JJl output fi
It may be 5.

In the figure, reference numeral 14 is a spring that pulls the tip f1k of the comb plate 1 to prevent the comb plate 1 from deflecting.

A cleaner 8 is located within the interval cfxll between each fence plate 1, and moves back and forth along the fence plate 1 using a drive source 4, and combs the raw material M clogged with the inclined surfaces 8b and gc on the side. It is designed to scrape out above or below 1. In addition, this cleaner 8 prevents the comb plate 1 from deflecting by moving the lower side connection @sa along the lower surface of the fence plate 1, and each comb plate 1, 1.1
It is located between... and serves as a spacer.

Reference numeral 21 indicates a discharge conveyor disposed below the inclined lower end side of the inclined comb dividing plate array 10.Next, the operation of this embodiment will be explained.

First, the driving source 3 reciprocates all or part of the fence plate 1 and causes the raw material M to be dropped from the raw material supply device 20 onto the inclined comb plate array 10. Then, the raw material M is transferred to the inclined fence dividing plate row 10
Because it vibrates and is tilted, it moves toward the lower end of the slope, but at this time, due to the phase change of the waveform on the upper side of each fence section 1, the adjacent comb sections 1 that the raw material N is in contact with ,1
The height of the top surface of is displaced. Therefore, the original 'BM is inclined in accordance with the displacement of its upper surface, and the interval C between the two comb plates 1, 1 is
It falls further down the inclined shelf plate row 10. Of course, at this time, the material M whose thickness is larger than the interval C cannot pass through, so it moves directly above the inclined rail dividing plate row 10 and moves to the inclined lower part 1.
It is discharged from the 5th side as an oversized item.

The present invention has the above-mentioned structure (1), and the 1:6 flat raw material M is tilted at 7)3 while moving on the Ipo 1 slanted fence dividing plate row 10, so that it can be sorted by thickness. , flat field 14
Since there are many opportunities for M to stand upright, thickness sorting can be done efficiently.

In addition, the raw material 1 has a tilted fence plate row 10 that is attached to its own weight and the comb plate 1.
Since the particles move sequentially due to the vibration of

[Brief explanation of the drawing]

FIG. 1 is a plan view showing an embodiment of the thickness sorting device of the present invention;
Fig. 2 is a partial JE view of the main part of the fence plate, Fig. 3 is a partial vertical sectional view of the included partition plate, Fig. 9 is a front view of the cleaner section, Fig. S is a partial plan view of the conventional example, and Fig. FIG. 6 is a front sectional view of the conventional example. 1 - Fence dividing plate 2 - Vertical frame 3 - Driving sickness 8 - Cleaner 10 - Inclined comb dividing plate row 11 - Upper side 20 - Raw material supply device 21 - υ1 output conveyor agent Processing person l m 2 m 7'+4 (fjJ f 5 m Thatch 6 m

Claims (1)

[Scope of Claims] A long comb plate 1 having a corrugated upper side 11 is tilted so that its longitudinal end side is downward, and a number of plates are arranged in parallel at a predetermined interval C to form an inclined comb. Forming a row of divided plates 10, all or some of the comb plates 1 are reciprocated in the longitudinal direction so that the upper side of the fence plate 1 adjacent to the waveform of the upper side 11 The waveforms are connected to drive gaps 3 whose peaks and troughs are alternately shifted in position, and a raw material supply device 20 is disposed above the inclined upper end of the inclined distribution plate array 10. Sorting equipment.