JPS60135211A - Sprinkler for fiber mixed cement slurry - 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 [Technical Field] The present invention relates to a device for dispersing fiber-containing cement slurry used when manufacturing fiber cement boards by a wet papermaking method.

[Background technology]

In manufacturing fiber cement sheets using the wet papermaking method,
An apparatus as shown in FIG. 1 is used.

That is, a paper-made syringe (1) is provided in slurry 4 (II) to which a cement slurry (110) in which cement, asbestos, etc. is dispersed is supplied,
Semestone slurry is drawn up on the surface of the paper-made felt by 1, and by the running of the paper-made felt and the rotation of the making wheel, several sheets of the cement slurry are made on the surface of the paper-made felt. Wrapping, Wrapping the paper sheet around the winding machine is done as a clean sheet when the thickness reaches the required thickness.
J Kroll, separated from 14I, brief sheet]
The fiber cement board is then sent to the factory and subjected to pressure dehydration, curing, etc., to produce fiber cement boards.

This hawk fiber cement board is formed by laminating a plurality of sheets as described above, and the fiber-mixed cement slurry containing reinforcing fibers is applied to the paper-making process using the dispersing device t (through the paper-making felt j3). Attempts have been made to reinforce the fiber cement board by spreading it on the sheet and sandwiching reinforcement r- with fiber-mixed cement slurry between the eyebrows of the fiber cement board. This fiber-mixed cement slurry is spread all over the paper-made sheet on the paper-made felt <13)! The reinforcing layer is not bent once, but is spread intermittently so that the reinforcing layer is sandwiched only in the lower lfB layer of the fiber cement board. The spraying device is composed of a spraying tank 14), a spraying device 5) and an agitation device 6) placed in the spraying tank 14), but it is different from the conventional spraying device V! , (A) contained the following interview.

In other words, as shown in Figure 2, the spray tank (4) is connected to the stock tank (2) in which the fiber-mixed cement slurry (1) is stocked by the supply pipe 13), but the spray tank (4) is
4 Fibers mixed into +41 1. Sesmey, Toslary
The supply of +11 is carried out exclusively through the supply pipe 13), and therefore, although the stirring tube (4) is equipped with an agitation tube (61), the supply pipe (3) is only sprayed at the opening to the spray tank 14). The concentration of the fiber-containing cement slurry (1) (mainly reinforcing fibers) in the tank 14) tends to increase;
As a result, the fiber-containing cement slurry; 1) cannot be uniformly spread on the paper-made sheet when making paper-made felt.

[Purpose of the invention]

The present invention has been made in view of the above points VC, and an object of the present invention is to provide a fiber-mixed cement slurry dispersing device that can uniformly spread fiber-mixed cement slurry.

[Disclosure of the invention]

The apparatus for dispersing cement slurry mixed with fibers according to the present invention includes a stock tank (2) in which the cement slurry mixed with fibers (1) is stored, and a sprinkling tank 14) which is connected by a supply tank 14); The brush roll (0) whose F part is immersed in the fiber-mixed cement slurry 11 in the scattering tank (14) and the brush roll (0) for dispersing the fiber-mixed cement slurry Il+, and the brush roll (0) which is immersed in the fiber-mixed cement slurry 11 in the scattering tank (4), and the above-mentioned pipe + 310 in the scattering tank (4)
) is arranged horizontally in a direction substantially perpendicular to the opening into the
The stirring roll (6) is provided with a stirring plate +71 along its axial direction, and the stirring plate (7) is connected to the dispersion tank (3) of the supply pipe (3). 4)
The % mark is that the part corresponding to the inward opening is bent in a substantially ``shape'' in the direction of rotation.
By using the stirring roll 16) having the stirring plate (7) having such a shape, the degree of Is of the fiber-mixed cement slurry Ill in the scattering tank (4) can be made uniform, and the Is degree can be made uniform by the stirring plate (5). The method is such that the fiber-containing cement slurry II) is evenly distributed.The present invention will be explained in detail below in a series of key words.

As shown in Fig. 5, the spraying device is equipped with a stirring roll +61 in the F section of the spraying tank (4) and a raster in the upper part.
- It is formed by arranging the spraying 1114
1 has a stock tank equipped with an agitation dU 5); 2) is connected by a pair of supply pipes 3) as shown in Figure 3; 6 agitation 0-16) has four agitation plates (7); ) is 46 figures,
As shown in FIGS. 7(a) and 7(b), they protrude radially.

As shown in FIGS. 7(a) and 8(b) and highlighted in FIG. This (potato-shaped bent part 116) is formed at a portion corresponding to the opening in the distribution tank (4) of the supply pipe ial.

Then, the above-mentioned dispersing device (A) is used for paper making 4 as shown in Fig. 4.
! It is cast on the paper-made felt 13),
As shown in the figure, three pieces of cement and the crushed material 118) of the cement plate, which also serves as a thickening material and a dispersion material, are put into the measurement site 19), and at the same time reinforcing fibers (7) such as a By supplying these and water to a mixing tank and kneading them, a long cement slurry 111 is prepared, and this is added to a mixing tank. 2) and from the stock tank i21 to the supply pipe +3
), the fiber-containing cement slurry (1) is sent to the spray tank 1.
4) At this time, the fiber-containing cement slurry 111 supplied as shown by the arrow A in Fig. 8 is rotated by the stirring dragon 6) driven by the 7-tar @j, and the cement slurry 111 is fed as shown by the arrow B in Fig. 8. 7 lines of dt stirring plates + 7 dogleg-shaped bends (branched by the seagull as shown by arrow C, and flowed in the longitudinal direction of the spray tank (4) in a 4-way manner and divided into fractions.

The fiber-containing cement slurry fi+ thus supplied into the sprinkling tank 14) is spread by a brush roll I5) driven by a spindle.

[Young fruit of invention]

As mentioned above, according to the present invention, a stirring plate is provided along the axial direction of the stirring roll, and this stirring plate is rotated in the direction of rotation at the part corresponding to the opening of the supply pipe from the stock tank. Since it is bent roughly in the shape of a letter, the fiber-containing cement slurry supplied from the supply pipe is branched by this bent part of the stirring plate and forced to flow in the longitudinal direction of the mixing tank. It is possible to make the distribution of fiber 7-kundai cement slurry in the cell even, and it is possible to make the distribution of fiber-mixed cement slurry uniform by using a brush roll.

[Brief explanation of the drawing]

Figure 1 is a schematic diagram showing the paper making equipment, Figure 42 is a schematic plan view of the conventional line, and Figure 43 is a schematic diagram of the equipment used in Akira Motomoto's Ikkei weaving 1y11. Fig. 4 is a plan view of the same as above, Fig. 45 is a front sectional view of the same as above, and Fig.
FIG. 47(a) is a front view in which the axial dimension of the stirring roll in the above-mentioned stirring position 0-up is reduced. , xlrj fiber mixed cement slurry, (2) is a stock tank, (3) is a supply pipe, (4) is a spray tank, 16) is a brush roll, (6) is a JJT stirring roll, (71 is a stirring plate) .Representative Patent Attorney Ishi 1) Chief 7 Figure 1 Figure 3 Procedural Amendment (Voluntary) Commissioner of the Patent Office 2 Name of the invention Spreading device for cement slurry mixed with fibers 3 Relationship with the person making the amendment Patent Applicant Location: 1048 Kadoma, Kadoma City, Osaka Prefecture Name (
583) Matsushita Electric Works Co., Ltd. Representative Iku Kobayashi 4 is appointed as an agent. ”.

Claims (1)

[Claims] (1) A sprinkling tank connected by a supply pipe to a stock tank in which cement slurry mixed with fibers is stocked, and a slurry whose lower part is immersed in the cement slurry mixed with fibers in the spraying area and which spreads the cement slurry mixed with fibers. , a J1 stirring roll is installed horizontally in the distribution tank in a direction substantially perpendicular to the opening of the supply pipe into the distribution tank, and the stirring roll is provided with a stirring roll in the axial direction. A stirring plate is attached along the line, and the stirring plate is bent approximately in the shape of a letter in the direction of rotation at a portion corresponding to the opening of the supply pipe into the distribution tank. Semecit slurry spreading equipment.