JPH0653219B2 - Day viewer - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a distributor that can distribute a pressurized fluid in a circumferential direction at fixed intervals.

2. Description of the Related Art One of the fields of application of such a distributor is an apparatus for producing a water-swelling gelled crosslinked polymer. Conventionally, a water-swelling gel-like cross-linked polymer is filled with a heated polymerization tube through a pressurized aqueous solution containing a polymerizable monomer and a catalyst, where it is temporarily retained and polymerized, and then extruded with a newly fed pressurized aqueous solution, and an outlet is provided. It is manufactured by cutting the water-swelling gel-like crosslinked polymer that is extruded into a rod shape into pellets, but the polymerization equipment is complicated because each polymerization tube requires a pump to supply the raw material aqueous solution. It was supposed to be. As a measure to simplify the polymerization equipment, it is possible to install multiple polymerization tubes in parallel, but for that purpose it is necessary to provide multiple branch tubes, and this method requires that the pressure of the raw material aqueous solution be uniform in each polymerization tube. Therefore, the formation of a water-swelling gel-like crosslinked polymer is not uniform and inappropriate. In addition, in the case of distribution using an ordinary valve, not only is it difficult to carry out stable continuous operation for a long period of time due to the retention of liquid due to the structure of the valve, cross-linking polymerization occurs at the retention point, and clogging tends to occur. , I hate that the structure becomes complicated.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention An object of the present invention is to provide a distributor capable of quantitatively distributing a pressurized fluid to a plurality of supply holes.

Means for Solving the Problems According to the present invention, therefore, there is a distribution board that is rotationally driven at a constant speed, and a liquid receiving board that is in close contact with one side surface of the distribution board. Introducing holes to be sent are formed, and a plurality of supply holes are formed on the side of the liquid receiving plate, the outlets of which are open to the outside. Moreover, one of the introducing holes and each of the supplying holes is formed on the contact surface. A distributor is provided, which is opened in the groove and in which the introduction hole is in communication with each of the supply holes by relative rotation of the groove and the opening formed in the other hole facing the groove.

In order to improve the sliding property of the distribution plate which is in sliding contact with the liquid receiving plate, it is desirable that the contact surface be treated with Teflon to reduce the friction coefficient.

The distributor according to the present invention is used not only by incorporating it into the above-described apparatus for producing a water-swelling gel-like cross-linked polymer, but also in various fields of other fields such as injection, filling into bottles, bags, tubes and the like. Used for food processing equipment. Therefore, an aqueous solution, a fluid viscous fluid, or the like is used as the pressurized fluid depending on the application.

When the distributor of the present invention is incorporated in, for example, the above-mentioned apparatus for producing a water-swelling gel-like crosslinked polymer, it is desirable to arrange the polymerization tubes in parallel, so that the supply hole is preferably formed in the axial direction and its outlet is formed. Is formed on the other side surface of the liquid receiving plate, but depending on the application, it can be provided on the peripheral surface of the liquid receiving plate, and the pipes and containers connected thereto can be arranged radially.

If each supply hole can communicate with a groove formed in the distribution board or is opened in each groove formed in the liquid receiving board, each supply hole has a radial direction. It does not have to be on the same circumference, but it is preferably formed on the same circumference.

The length of the groove is usually formed so as not to communicate with the two adjacent supply holes, but depending on the application, the groove is formed so as to communicate with the plurality of supply holes. In this case, a fixed amount of pressurized fluid can be simultaneously supplied to the plurality of supply holes.

When the groove is formed in the liquid receiving disk, the width in the radial direction may be constant or may be irregular if the length in the circumferential direction is constant.

Furthermore, the grooves may be arranged on one circumference, or may be arranged on a plurality of circumferences having different diameters.

In order to pass the pressurized fluid through the introduction hole, for example, as shown in FIG. 2, a through hole 11 communicating with the inner peripheral groove 9 is formed in the hollow shaft 8 on which the distribution board 6 is supported, and the inner peripheral groove 9 is formed. Forming a through hole 12 communicating with the introduction hole 5 or connecting a hollow crank 14 to the inlet of the introduction hole 5 as shown in FIG.
As shown in the figure, the liquid collection board 16 fixed to the other side of the distribution board 3
Are closely contacted with each other, an annular groove 17 and an introduction groove 18 communicating with the groove are formed on the contact surface, and the inlet of the introduction hole 5 is positioned in the annular groove 17. Embodiment An embodiment of the present invention will be described with reference to FIG.

The distribution board 6 is slidably and rotatably supported on the shaft 21 protruding from the liquid receiving board 3, and the liquid collecting board 16 is slidably mounted on the mounting board 22 and the adjusting nut 23 screwed to the shaft 21. The distribution plate 6 is pressed against the liquid collecting plate 16 by the liquid receiving plate 3 by the spring 24 wound around the shaft 21 between the liquid receiving plate 3 and the liquid receiving plate 3.

The distribution board 6 is rotationally driven by a motor 25 via a gear transmission. Polymerization pipes 26 are connected to the outlets of the supply holes in the liquid receiving plate 3 and extend in parallel.
Heated with hot water injected into the cutter, near the end face of the cutter
28 is rotated by a motor 29. Reference numeral 31 is a pump for feeding the aqueous solution of the polymerizable monomer and the catalyst to the introduction groove 18.

The present apparatus is configured as described above, and the pressurized aqueous solution of the polymerizable monomer and the catalyst sent to the introduction groove 18 by the pump 31 passes through the annular groove 17 as the distribution board 6 driven by the motor 25 rotates. It passes through the introduction hole 5, enters the arc groove 1, is discharged from the supply hole 2, and fills the polymerization tube 26. The filling of the polymerization tube 26 is performed until the opening of the outlet of the introduction hole 5 reaches from one end of the arc groove 1 to the other end, and then stops. Then, when the next arc groove end is reached, the filling of the next polymerization tube is started, and thereafter, the polymerization tube is successively filled in the rotational direction. In addition, until the opening of the introduction hole outlet reaches the end of the arc groove 1 from the end to the end, the flow rate of the pressurized fluid passing through the supply hole is not only the pressure and the flow velocity, but also the size of the arc groove and the rotation speed of the distribution board 6. It changes according to the size of. In other words, if the pressure and flow velocity of the pressurized fluid are constant, the lengths of the circular arc grooves arranged on the same circumference are constant, and the rotation speed of the distribution board is constant, pressure is applied to each supply hole. The fluid can be delivered quantitatively. It should be noted that the pressure of the pressurized fluid does not change during distribution if the pressure sent to the introduction hole is constant, so that the pressurized fluid having a constant pressure can be sent to each supply hole. The aqueous solution filled in the polymerization tube then undergoes a polymerization reaction to become a water-swelling gel-like cross-linked polymer and is extruded with a pressurized aqueous solution newly filled when the distribution plate 6 makes one revolution. The extruded water-swelling gel-like crosslinked polymer is cut into pellets by a cutter 28 that rotates immediately after extrusion.

Effects of the Invention As described above, the distributor of the present invention has a distribution board that is rotationally driven at a constant speed and a liquid receiving board that is in close contact with the distribution board,
The distribution board is formed with an introduction hole through which pressurized fluid is sent, and the liquid receiving board side is formed with a plurality of supply holes whose outlets are open to the outside. One of them is opened in a groove of a certain length formed on the contact surface, and the introduction hole is formed by the relative rotation of the groove and the opening of the other hole facing the groove. The pressurizing fluid introduced into the introduction hole can be quantitatively distributed to each supply hole as the distribution board rotates.

[Brief description of drawings]

FIG. 1 is a plan view of a distribution board and a liquid receiving board constituting a distributor according to the present invention, FIG. 2 is a vertical sectional view of another embodiment of the distribution board, and FIG. 3 is a vertical section of yet another embodiment of the distribution board. FIG. 4 is a plan view of a liquid collection board used together with the distribution board shown in FIG. 1, and FIG. 5 is a schematic view of an apparatus for producing a water-swelling gel-like crosslinked polymer. 1 ... Arc groove, 2 ... Supply hole, 3 ... Liquid receiving plate, 5 ... Inlet hole, 6 ... Distributing plate, 16 ... Liquid collecting plate, 17 ... Annular groove, 18
...... Introduction groove

Claims (4)

[Claims] 1. A distribution board, which is driven to rotate at a constant speed, and a liquid receiving board, which is in close contact with one side surface of the distribution board, wherein the distribution board is formed with an introduction hole through which pressurized liquid is sent. On the liquid plate side, a plurality of supply holes whose outlets are open to the outside are formed, and one of the introduction hole and each supply hole is opened in a groove of a fixed length formed in the contact surface, and the groove and the other of the holes are opened. A distributor in which the introduction hole communicates with each supply hole sequentially by relative rotation of the hole with respect to the opening formed facing the groove. 2. A distribution board is provided with a liquid collection board which is sandwiched and closely adhered to a liquid receiving board, and the liquid collection board has a circular locus drawn by the other end of the inlet port by the rotation of the distribution board. The distributor according to claim 1, further comprising an annular groove and an introduction groove communicating with the annular groove. 3. An annular groove is provided in the distribution board, the other end of the inlet is opened in the groove, and the introducing groove provided in the liquid collection board is opened facing the annular groove. Distributor of. 4. The distributor according to claim 1, wherein the introduction hole communicates with a hollow shaft passing through the center of rotation of the distributor.