JPH0449199Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] This invention relates to a disintegrating device with enhanced performance among stock conditioning machines for paper and pulp.

[Conventional technology]

Conventionally, when disintegrating various types of moisture-resistant paper, a pulper equipped with a mechanical crushing mechanism, such as the Barracuda pulper, is used to speed up the penetration of water and chemicals into the inside of the paper layer, increasing the disintegrating effect.

A conventional barracuda pulpa is shown in FIG.

In the tank 1, as the impeller 2 rotates in the direction shown by the arrow in the figure, the moisture-resistant paper to be detached in an amount equivalent to 5 to 6% of the water is placed high on the outer periphery and in the center as shown by the dotted line in the figure. A spiral flow (dotted line) is formed that creates a recess in the area. A part of this vortex is forcibly introduced downward by the impeller 2, coarsely pulverized by the same impeller 2, and transferred to the fixed ring-shaped disk 3-1 (a disk with an uneven tooth profile) and the impeller. When passing through the gap (approximately 2 to 3 mm) between the directly connected rotating ring-shaped disks 3-2, the particles are crushed, discharged to the outer periphery, and the process of returning to the original tank 1 is repeated.

[Problem that the invention attempts to solve]

In the above-mentioned conventional disintegration device, only the material to be disintegrated that has been pulverized into pieces of about 20 mm square by the impeller 2 is introduced between the rotating disks 3-1 and 3-2, so the disintegration effect is limited. Another problem was that it took time and effort to adjust the gap between the rotary disks 3-2, which affects the disintegration effect.

The present invention attempts to solve these problems.

[Means for solving problems]

The present invention is an apparatus for disintegrating pulp, paper, etc., which is equipped with an impeller that rotates the material to be disintegrated. A step-up roll device consisting of the following was installed in the tank.

[Effect]

In the present invention, the material to be disintegrated, which is swirling in the tank together with water due to the action of the impeller, is forcibly subjected to a step action and pulverized when it passes through the gap between two rolls having pulverizing blades.

In addition, the step-up roll device consisting of two rolls should be installed in the tank at a location where it will not affect the operation of other devices such as the impeller, and at a location where repairs and adjustments can be made easily and quickly. be able to.

Furthermore, the step roll device can easily adjust the gap between the two rolls according to the size of the material to be disintegrated by using the gap adjusting means, thereby increasing the disintegration efficiency.

〔Example〕

An embodiment of the present invention will be explained with reference to FIGS. 1 to 3. Reference numeral 1 denotes a disintegrating tank, and an impeller 2 that is driven in the direction of the arrow in FIG. 1 is installed at the bottom of the tank 1. Reference numeral 3 denotes a stepped roll device, which is equipped with two rolls 3a and 3b which are arranged in the vertical direction and have crushing blades on their surfaces, and which rotate in opposite directions when engaged with each other. As shown in FIG. 2, three sets are installed near the peripheral wall of the disintegration tank 1 at approximately equal intervals. One of the rolls 3a and 3b, 3a, is fixed to the wall surface 18 of the disintegration tank 1 and connected to a drive motor 4 located above the roll 3a.

A pair of guide rails 14, 14' are attached to the upper and lower parts of the tank wall surface 18, respectively, and a bearing box having rectangular waterproof seals on the upper and lower sides of one roll 3a is fixed to the guide rails 14, 14'. has been done. Bearing boxes 13, 13 having rectangular waterproof seals on the upper and lower sides of the other roll 3b are slidably supported by the pair of guide rails 14, 14'. Reference numeral 15 denotes an arm connected to the upper and lower ends of the roll 3b, to which a horizontal screw shaft 16 that penetrates the tank wall surface 18 and extends to the outside of the tank is fixed, and a handle 17 is attached to the threaded portion 16a of the screw shaft.
The worm gear 5' is engaged. The screw shaft 16, handle 17, and worm gear 5' constitute a gap adjusting device 5 (see FIG. 1) between the rolls 3a and 3b. With the above configuration, the roll 3b can be moved in the horizontal direction relative to the roll 3a by rotating the worm gear 5' using the handle 16.

The present invention is constructed as described above. In the disintegration tank 1, after the large material to be disintegrated is put into the tank, it is rotated together with water by the impeller 2, and a plurality of sets of crushing blades are installed and rotate in opposite directions. When passing through the gap between the stepped rolls 3 having two rolls 3a and 3b, it is forcibly subjected to a step-up action and pulverized. At this time, the device 5 adjusts the gap between the rolls 3a and 3b according to the size of the material to be disaggregated.
By adjusting the distance, a gap suitable for the material to be disintegrated can be set. As the grinding progresses and becomes finer, the gap between the rolls 3a and 3b is narrowed to promote the disintegration effect.

As explained above, in this embodiment, the rolls 3a, 3 of the step roll device 3 are
The gap in b can be adjusted to promote the disaggregation effect.

Further, the adjusting device 5 of the step roll device 3 is provided at the upper and lower portions of the disintegrating tank 1 and in a place where there are no other parts, so that the gap between the rolls 3a and 3b can be easily and quickly adjusted. I can do it.

Furthermore, the step roll device 3 is provided in the disintegration tank 1 at a position where it does not affect the operation of the impeller 2 and other devices, so that the disintegration action can be performed efficiently and reliably.

In the above embodiment, three sets of corrugating roll devices are provided, but the number can be selected as appropriate.

[Effect of idea]

The present invention can have the following effects.

(1) By adjusting the gap between the two rolls of the step roll device according to the size of the material to be disintegrated, the disintegration effect can be improved and the device can be made smaller.

(2) The step-up roll device can be installed in a location where it does not affect the operation of other devices such as the impeller.

(3) The step roll device can be installed in a position where the adjustment means can be easily operated, and the roll gap can be adjusted easily and quickly during operation.

[Brief explanation of the drawing]

Fig. 1 is an elevational view showing an embodiment of the present invention, Fig. 2 is a plan view of the embodiment, Fig. 3 is a vertical sectional view of the main parts of the embodiment, and Fig. 4 is a longitudinal sectional view of the main part of the embodiment. 3 is a view taken along the line A-A in FIG. 3, FIG. 5 is a view taken along the line B-B in FIG. 4, and FIG. 6 is an explanatory diagram showing a conventional disintegrating device in a longitudinal section. DESCRIPTION OF SYMBOLS 1... Disintegration tank, 2... Impeller, 3... Step roll device, 3a, 3b... Roll, 4... Drive motor, 5... Gap adjustment device, 5'... Worm gear, 14, 14'... ...Guide rail, 16...
...screw shaft, 17...handle.

Claims (1)

[Scope of utility model registration request] In an apparatus for disintegrating pulp, paper, etc., equipped with an impeller that rotates the material to be disintegrated, such as pulp, paper, etc.
They have crushing blades on the surface and rotate in opposite directions, and
A pulp characterized in that a step roll consisting of two rolls equipped with a gap adjustment means is provided in a tank.
Apparatus for disintegrating paper, etc.