JPH042894A - Pulp disaggregating machine - Google Patents

Abstract

PURPOSE:To provide the title machine capable of disaggregating fibers in a short time into single fibers, thus useful for disaggregating high-concentration pulp obtained from waste paper as raw material, consisting of a disaggregating tank equipped with both specific disaggregating blades and baffle plates. CONSTITUTION:The objective machine consisting of a disaggregating tank 3 equipped with (A) disaggregating blades 6 provided with two pairs of downwardly lilted plate blades concentrically fitted at the lower part of rotary- controllable disaggregating shaft and (B) baffle plates 9 with agitating blades 5 fitted with two spiral blades 6a, 6b tilted against a bottom plate 7 with many recess grooves and the inner wall surface. It is preferable that the downward tilt angle of one of the two pairs of disaggregating blades 6 be made to differ from that for the other.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a disintegrating machine for disintegrating high-density pulp made from waste paper.

2. Description of the Related Art Conventionally, a disintegrating machine for pulp made from waste paper has been equipped with a disintegrating blade having three blades 21 as shown in FIG. 8 in an ordinary tank. There have been various other proposals in the past, but nothing worth mentioning has been found as a disintegrating machine.

Problems that the invention aims to solve Recently, there has been an increasing demand for the recycling of waste paper from the perspective of protecting the global environment and resources, and the emergence of excellent pulp disintegrating machines that use newspapers, cardboard, and other waste paper as raw materials has led to the emergence of excellent pulp disintegration machines that use newspapers, cardboard, and other waste paper as raw materials. desired. That is, the recent trend in the field of waste paper recycling is to use pulp with high concentration, to save wastewater as much as possible, and to use closed processing systems. Against this.

The above-mentioned disintegrating machine using a single plate blade has a low disintegrating ability and can only be used in a low concentration range of about 3 bulb concentrations, which is unsatisfactory.

Conventional disintegrators have been extremely unsatisfactory, especially in terms of their ability to dissolve highly concentrated pulps.

Structure of the Invention Means for Solving the Problems The present invention has been made to solve the above-mentioned problems of the conventional art. A disintegrating blade equipped with an inclined plate blade and a circulation vane equipped with two spiral blades below the disintegrating blade are placed in a disintegrating tank equipped with a bottom plate having many grooves and a plurality of inclined baffle plates on the inner peripheral wall. The present invention relates to a pulp disintegrating machine characterized in that the disintegrating blades are tilted downwardly, and further to a pulp disintegrating machine in which the degree of downward inclination of one of the two pairs of disintegrating blades is different from that of the other.

Effects According to the above-mentioned refractory machine of the present invention, fibers can be loosened into single fibers in a short time by efficient stirring of high-density pulp, mechanical shearing force, and generation of frictional heat of raw materials, and pulp can be immediately sent to the next deinking process.

Example The invention will be explained in detail by means of embodiments in the drawings.

1 to 7 are drawings showing embodiments of the present invention. In these figures, 1 is the base, 2 is the drive of this machine,
The column 3 that supports the control mechanism is a sample tank. A circulation vane 5 is attached to the lower part of the rotating shaft 4 inserted into the sample tank 3 from above, and a disintegrating blade 6 is attached above and in contact with the circulation vane 5. The circulation blade 5 has two spiral blades 5a and 5b that spread downward, and the disintegration blade 6 has two pairs of plate blades 6a and 6a' and 6b and 6b', and 6a and 6a' are provided with respect to the horizontal direction. 6b and 6b' are bent downward at 60 degrees, and 6b and 6b' are also bent at 17 degrees, and furthermore, 6b and 6b' are twisted 20 degrees downward to the right with respect to the center direction.

The sample tank 3 has a lid 10, and a bottom plate 7 is attached to the center of the pot-shaped tank bottom 3a, and a large number of grooves 8 as shown in FIG. 6 are provided on the surface of the bottom plate 7.

Further, on the peripheral wall 3b of the sample tank 3, there are four inclined baffle plates 9.

In FIG. 7, which is a schematic diagram showing the entire disintegration machine of the present invention, 11 is a variable speed handle, 12 is a stirring switch, and 13
is the timer start button, 14 is the digital timer,
15 is a zero reset button.

Effects of the Invention By the operation of the disintegrating machine of the present invention, the pulp in the tank is circulated clockwise by the circulating blades 5, and the pulp in the center of the tank is circulated downward, and the pulp in the pot-shaped tank bottom 3a, especially the bottom plate. 7, the pulp rises while shearing of the pulp at the bottom of the tank and circulation at the bottom is promoted, and hits the baffle plate 9. Further mechanical shearing force is applied by the disintegrating blades 6, and circulation of the pulp on the tank wall and the upper part of the tank wall are promoted by the disintegrating blades 6b and 6b', and the rising pulp collapses into the center of the tank and returns again. being pushed back downwards.

In this way, the pulp is subjected to efficient agitation, mechanical shearing force, and frictional heat generation, and the fibers are loosened into single fibers in a very short period of time. This pulp will be transferred to the next deinking process.

Such a disintegrating machine of the present invention is attracting attention at present when there is a strong demand for efficient recycling of waste paper, and its effects are extremely large.

[Brief explanation of drawings]

1 to 7 are diagrams showing embodiments of the present invention, in which FIG. 1 is a central vertical cross-sectional view of the disintegrating tank, FIG. 2 is a plan view of the disintegrating blade, and FIG. 3 is a downwardly bent view of the disintegrating blade. Diagram showing degree, 4th
The figure is a plan view of the circulating vane, Fig. 5 is a partially cutaway side view of the circulating vane, Fig. 6 is a plan view of the bottom plate, Fig. 7 is a schematic perspective view of the entire disintegrating machine, and Fig. 8 is a conventional disintegrating machine. FIG. 3...Fabricating tank, 4...Rotating shaft, 5...Circulation vane,
6...Fabricating blade, 7...Bottom plate, 8...Bottom plate groove, 9
... Baffle plate, 10... Lid

Claims (2)

[Claims] (1) A disintegration vane with two pairs of downwardly inclined plate vanes attached concentrically to the lower part of a disaggregation shaft whose rotation can be controlled, and a circulation vane with two spiral vanes below the disintegration vane with a large number of grooves. A pulp disintegrating machine, characterized in that the pulp disintegrator is arranged in a disintegrating tank equipped with a bottom plate having a bottom plate and a plurality of inclined baffle plates on an inner circumferential wall. (2) A pulp disintegrating machine according to claim 1, wherein the degree of downward inclination of one of the two pairs of disintegrating blades is different from that of the other.