JPH07113198B2 - High specific gravity fiber sheet machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Application) The present invention relates to a papermaking apparatus that uniformly disperses a fibrous substance having a high sedimentation rate to form a sheet. It is used for the production of high specific gravity fiber sheets that are mixed with other fibers to make paper.

(Prior Art) As a prior art related to the present invention, there is JP-A-62-41932.

This is because in the slurry-like raw material, unnecessary substances with a low specific gravity are mixed in the slurry-like raw material, and unnecessary substances having a low specific gravity are located in the upper layer portion of the slurry-like liquid, and the paper is produced in the slurry-like fiber raw material. It is excluded by utilizing the low specific gravity of the mixed substance of the above.By running the inclined traveling part upward, providing a suction chamber on the lower surface of the papermaking belt, supplying excess slurry-like fiber raw material, other than the amount of papermaking The excess raw material of No. 2 is made into paper while flowing out from the upper opening.

(Problems to be solved by the invention) However, the above-mentioned paper making apparatus is intended for extremely light and thin wood fibers, and it is possible to use fibers having high specific gravity (ρ = 2.0 to 9.0) such as short metal fibers and ceramic fibers. In the case of making a paper, there is a problem that it is difficult to make a fiber sheet in which fibers are uniformly dispersed because the sedimentation speed of the fiber is high.

It is a technical object of the present invention to provide a papermaking apparatus capable of mixing paper having a high specific gravity into a slurry-like raw material and uniformly dispersing the fibers for papermaking.

[Structure of Invention]

(Means for Solving the Problems) The technical means for solving the above technical problems are as follows. That is, a mixture of a viscous liquid and a high specific gravity fiber mixed with an adhesive is used as a raw material liquid, which is mixed and put into a papermaking liquid constant-quantity supply tank, pumped out in a bucket at a fixed amount, and installed on one end of the papermaking net Further, the raw material liquid is supplied to three or more swash plates installed at an angle of 10 ° to 45 ° inside the dividing tank, and is made to uniformly flow out over the entire width of the paper making net to form a net making part having a saxion box. Draining a wet sheet onto a felt belt having a draining box, and conveying the wet sheet on a wire conveyor belt consisting of a press roll. This is an apparatus for producing a high specific gravity fiber sheet, which is an apparatus for drying and heat-fusing at.

(Operation) The technical means functions as follows.

The raw material liquid mixed with the high specific gravity fibers supplied to the papermaking liquid constant-quantity supply tank is pumped out in a bucket in a fixed amount, poured into a channel with a cross-section channel type (square type), and further sent to the papermaking liquid diversion tank.
By passing through multiple swash plates, the fibers with high specific gravity and the raw material liquid are uniformly mixed and flow to the full width of the paper making machine, and the liquid is separated in order to produce a homogeneously dispersed fiber sheet. is there.

(Examples) Examples will be described below.

In FIGS. 1 to 3, reference numeral 1 denotes a viscous liquid adjustment for slowing the sedimentation speed of high specific gravity fibers in water and increasing the viscosity of the aqueous solution with a polymeric sticky agent in order to maintain the suspending property as much as possible. In the tank, 1a is a low speed agitator for forcibly dissolving the sticky agent.

2 is a dispersion tank for dispersing and mixing the high specific gravity fiber and the fibrous binder for adhering the high specific gravity fiber, which has a rapid agitator 2a.

Numeral 4 is a fixed amount supply tank for papermaking fluid, and 3a is a channel type open flow channel for supplying a slurry liquid of high specific gravity fiber. In conventional pipe transportation using ball valves, etc. There is a risk of deposits and blockage of the pipe, and 3b is a transport pipe for the polymer viscous liquid.

The dispersion liquid and the viscous liquid sent at a constant ratio are agitated by the rapid agitator 4a in the papermaking liquid quantitative supply tank 4 shown in FIG. 2 so as to be in a suspended state, and the fibrous material in the tank is agitated. The slow stirring plate 4b for preventing the accumulation of water and a plurality of buckets 4c for pumping out a fixed amount are configured to rotate at a constant speed by a motor (not shown), and the bucket 4c is reinforced by ribs 4d. There is.

The suspension A pumped out by the bucket 4c passes through a channel-type open channel 5 having a receiving portion and is sent to a papermaking liquid distribution tank 6.

The flow dividing tank 6 is for evenly flowing over the entire width of the paper making section. When the flow is directly flowed from the passage 5 while maintaining the above state, the width of the passage 5 becomes large and the flow velocity is reduced, so that some fiber No lumps are generated, and a good homogeneously dispersed fiber sheet cannot be obtained. Therefore, the width of the passage 5 is reduced so that the flow velocity is not less than a certain value. The suspension A sent to the papermaking liquid distribution tank 6 has three or more inclined plates 6a, 6b, 6c provided within an inclination angle of 10 ° to 40 ° to increase the flow passage width, It can be flushed across.

The suspension A flowing out from the papermaking liquid diversion tank 6 is uniformly deposited on the long wire 7, sucked and filtered by the suction box 7a, and sufficiently drained.

Next, it is sent to the transfer zone, moved to the felt belt 8, and the press roll 9 is sufficiently dried on the steam drying drum 11 via the wire transfer belt 10 and then finished on the hot roll press 12 and passed through the winder to obtain a high specific gravity. A fiber sheet is obtained.

When the release agent such as silicone is applied to or immersed in the wire transport belt 10 to facilitate the movement from the wire transport belt 10 to the drying drum, the release of the high specific gravity fiber sheet from the wire transport belt 10 is improved. It is a thing.

〔The invention's effect〕

The present invention has the following effects. That is, (1) the suspension can be sufficiently stirred and uniformly mixed in a papermaking liquid constant-quantity supply tank, and the liquid supplied intermittently by a fixed amount in a bucket constant-quantity supply system is processed into a papermaking process having a swash plate. Even if a high specific gravity fiber is mixed, it is homogenized because it is poured into the liquid distribution tank and discharged as a continuous flow into the Fourdrinier.

(2) Special paper containing leaves, bamboo, gold leaf, etc. can be easily manufactured by this apparatus.

(3) It is also possible to manufacture paper using raw materials having a large difference in specific gravity, such as pulp and stainless fiber, carbon fiber and aluminum flakes.

[Brief description of drawings]

FIG. 1 is an explanatory view of the whole of the present embodiment, FIG. 2 is a papermaking liquid quantitative supply tank, (a) is a side front view, (b) is a sectional view, and FIG.
The figure is a cross-sectional view of a papermaking liquid diversion tank. 4 ... papermaking liquid constant supply tank, 4c ... bucket, 6 ... papermaking liquid diversion tank,
6a, 6b, 6c ... Swash plate, A ... Suspension and high specific gravity fiber sheet.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Takashi Umame 4 at 1795, Mino City, Gifu Prefecture 4 (72) Inventor, Yukiyasu Sato 260 Nakagami-cho, Kaminaka-cho, Hashima City, Gifu Prefecture Examiner Shigemi Sawamura (56) References 42-20421 (JP, B1)

Claims (1)

[Claims] 1. A suspension for mixing a viscous liquid and a high specific gravity fiber with an adhesive in a papermaking apparatus for producing a sheet from a suspension through a transport zone consisting of a net-making section, a conveyor belt and a drying drum. The liquid is supplied to a constant amount of papermaking liquid supply tank, stirred, pumped out by a fixed amount in a bucket, and injected into the papermaking liquid distribution tank with multiple swash plates installed at one end of the long wire, then the full width of the long wire A machine for producing a high-density fiber sheet, which is made to flow evenly over the entire surface and is passed through a transport zone consisting of a wire net having a suction box, a press roll and a drying drum.