JPS5915591A - Grinder apparatus of papermaking stock material - 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 (1) relates to an apparatus for further defibrating coarsely crushed papermaking raw materials and grinding bound fibers into flexible fibers suitable for papermaking.

In general, when using coarsely crushed raw materials as raw materials for papermaking, #decomposition of the bundled fibers,! ＃、In order to fibrillate the silk, it is necessary to perform a refining process, and for this purpose, conventionally, a metal stationary bus stop with a grinding blade and a rotating disk were installed on the opposing IJ+i. The objective was to be achieved by providing a clearance and passing the coarsely crushed raw material through the clearance.

However, the conventional method described above has the problem that the bound fibers are not disintegrated sufficiently, and furthermore, the refiner using a metal bulkhead consumes a large amount of energy and is therefore very uneconomical. I was there.

For this reason, in recent years, a method has been proposed in which a fixed grindstone and a rotating grindstone are provided in place of the metal disk so that the coarse raw material is not passed between them.

It has been found that according to this method, refining is effectively performed and the energy consumption/L key is significantly reduced. However, on the other hand, when using a whetstone, it is necessary to reduce the clearance, and especially when the clearance is reduced in an attempt to sharply grind coarse dog sashimi, the ability to take in the raw material decreases and the processing capacity decreases rapidly. There is a problem with this. Therefore, in order to deal with this problem, in order to gradually carry out refining, it is necessary to
``It is necessary to install a large number of glue finers such as 11,
If each glue finer is driven independently,
The entire device is very large and the installation space also increases.
There is a problem that leads to an increase in equipment costs.

The present invention was made in view of these points.
Second, a rotary whetstone integrally provided at the required intervals, a non-rotating whetstone facing the rotary whetstone and adjusting the clearance between them, and the inside of the clearance between the rotary whetstone and the non-rotating whetstone. A plurality of glue refiners each having a raw material supply port communicating with the refiner and a raw material height [1] communicating with the outside of the clearance are arranged, and the raw material outlet of the refiner and the raw material supply port of the next glue refiner are sequentially connected. Accordingly, the papermaking raw material is ground in stages to achieve the objectives of uniform and good understanding and increase of throughput.

Embodiments of the present invention will be described below based on the drawings.

Figures 1 and 2 show an example of the present invention, in which a plurality of rotary plates (3) having rotary grindstones (1) and (2) on both sides are arranged at required intervals in the 1111 force direction. A rotating shaft (4) is provided, and the rotating shaft (4) is mounted on a fixed base (5) with a bearing (6).

(7) and is connected to the output shaft (9) of the drive motor (8). Furthermore, each of the rotating plates (3
) on the outer periphery of the rotating shaft (4).
- has 7 flange portions (+4), 061 that airtightly form an annular flow path @, 03 through the rotary grindstones (1), Ql), and faces the rotating grindstones (1), 12), respectively. It has non-rotating grindstones αQ and (+7), and further includes the fixed table (5).
An adjustment sliding device Q (a) is provided which is movable in the axial direction of the rotating shaft (4) via a roller α8) on the top thereof. Further, the adjustment sliding devices H and (A) are connected by a connecting rod (A) parallel to the rotating shaft (4) and having reverse screws 12υ and Qυ, and a stethoscope is connected to the connecting rod (2). A clearance adjustment device (c) is constructed by connecting the /gmotor head and the like.

In addition, the flange portion θ→, 00 or the fixed base (5),
A raw material supply port (c) of the annular flow path θ that communicates with the α pit.

(1), and the grindstones (1), (2), (
G) A casing cover is provided on the outer periphery of a to form an airtight annular flow path (A) using a sealing material (A), and a raw material outlet is provided at a predetermined position of the casing cover. As a result of the above, a plurality of glue finers (31α), (31b), (31C) are placed on the rotating shaft (4).
).

Furthermore, the coarsely crushed raw material 02 is passed through a first glue finer (61
At the same time, the material is introduced into the raw material supply ports (A) and (4) of the first glue finer (21(L)) and the raw material supply port (Ha ) and (a) are connected by a flow path (g), and further the raw material outlet (1) of the second glue finer (316) and the sixth glue finer
Connect the flow path (31c) between the raw material supply ports (c) and (e)
(b), and the refined raw material (c) is taken out from the raw material outlet (1) of the last stage glue finer (31c). In addition, in the above, the rotating whetstones (1), (2)
The clearance between the non-rotating grindstone (to) and Qη is the first,
The clearance is adjusted using the clearance adjustment device (c) so that the second and sixth glue finers become narrower in that order.

In the above configuration, the raw material supply port (a) of 31α) supplies the coarsely crushed raw material 04 to the first glue finer at a required pressure.

(E) When the drive motor (8) is driven in the state where the grinding wheel (E) is supplied, the rotary grindstone (
1), (2) and the non-rotating grindstone α0. θ
When passing through the clearance with the engine, the raw material is ground and headed for the raw material outlet (E). At this time, the first glue finer (
Since the clearance of 51α) is set relatively large, coarse raw material fibers in the coarse raw material 0 pit are mainly crushed.

The raw material ground in the first glue finer (31α) is
It is led to the second paste refiner (31b) via the flow path (2) and is further ground. At this time, the second glue finer (
31b) is the first glue finer (3).
Since it is set smaller than 1α), even finer grinding is performed.

Subsequently, it is guided through the flow path (b) to a sixth glue finer (51c) with a smaller clearance, where it is ground and taken out as the intended refined raw material.

By doing so, the coarsely crushed raw material can be continuously refined.

f^), at this time, each refiner (51α), (
31b).

If the clearance of (31c) is changed, the processing capacity of each refiner (31α), (31b), and (316) may change. For this reason, in the present invention, when the first glue finer (31α), which has a large clearance and the highest throughput, is used as one unit, the second glue finer (316) is used as two units, and the third glue finer is used as a single unit. - The number of downstream refiners is increased to 6 or 4 (31c), and the clearance of each refiner is adjusted using a clearance adjustment device ( (c) can be adjusted. Therefore, by doing this, it is possible to effectively refine the coarsely crushed raw material while continuously driving a plurality of refiners with one drive motor without reducing the processing capacity. I can do it.

It should be noted that the present invention is not limited to the above-mentioned embodiments, and is not limited to the number of clearance finers disposed on one rotating shaft, and that the clearance adjustment device can be finely adjusted remotely. Therefore, it is possible to adopt stamping soring, hydraulic control method, etc., the rotation axis may be tilted or vertical, and the case where clearance adjustment devices are installed at the top and bottom of the refiner is illustrated. Of course, it is possible to provide the holder at a side position, and that various other changes can be made without departing from the gist of the present invention.

According to the paper-making raw material grinding apparatus of the present invention described above, the following excellent effects can be achieved.

(1) By arranging multiple finers on the same rotating shaft and setting the clearance to narrow sequentially and guiding the raw material to the finers one after another, papermaking raw materials can be processed continuously and effectively. Can be ground.

(il) By changing the number of refiners in the refining stage depending on the size of the clearance, the problem of reduced throughput can be solved.

(110) By installing a plurality of glue finers on the same rotating shaft, the entire device can be downsized, and the installation space and equipment costs can be reduced.

[Brief explanation of the drawing]

FIG. 1 is a cutaway side view showing an embodiment of the present invention, and FIG. 2 is a view taken along arrows 1--2 in FIG. (1), (2) are rotating grindstones, (4) is a rotating shaft, (5) is a fixed base, (8) is a drive motor, (g), o7) are non-rotating grindstones, oo is an adjustment sliding device, (c) is a clearance adjustment device, (c). (E) is the raw material supply port, (to) is the raw material outlet, (31α),
(316). (51c) Beam finer 1 so, ■ indicates a flow path. Patent applicant Sanyo Kokusaku Valve Co., Ltd.

Claims (1)

[Claims] 1) An adjustment sliding device having a rotating grindstone that can be accessed on the rotating shaft and a non-rotating grindstone that can adjust the clearance between the rotating grindstone and the rotating grindstone via a clearance adjustment device, and a sliding wheel formed between the grindstones. A raw material supply port that communicates airtightly with the inner peripheral side of the clearance, and a raw material outlet that communicates airtightly with the outer peripheral side of the clearance, and a plurality of refiners are arranged on the rotating shaft, and the raw material outlet of the refiner A milling device for papermaking raw materials, characterized in that the milling equipment is sequentially connected to a raw material supply 1 of another polisher via a flow path.