JP4707342B2 - Substance atomization equipment - Google Patents

Description

  The present invention relates to an apparatus for atomizing various materials handled in the industry such as ceramics, metal or chemicals, and foods, and more particularly to an improvement of an apparatus for atomizing substances in an emulsified, dispersed, pulverized, crushed or other state. It is.

  It is known that when a substance is micronized to the nanometer level below a micron, the electrical and chemical specific functions of the substance are exerted. Devices have been developed.

  However, since the atomization apparatus mainly composed of a mill apparatus has a problem that it takes a large space and requires a large space, requires work for the apparatus, has a small processing capacity, and is expensive. 1 has been proposed which does not use a mill device, requires only a small facility, has a large processing capacity, and is inexpensive.

  The atomization apparatus includes a sealed container having an inlet pipe and an outlet pipe, a cube fixed in a floating state in the container, and a plurality of holes that are drilled from the surface of the cube toward the center and intersect at the center. A hole and a conduit communicating with the specific one of the holes and the outlet pipe. By applying pressure to the liquid containing the substance and introducing the liquid from the inlet pipe, the substance is brought together with the liquid into the surface of the cube. The material is atomized from the outlet pipe through the specific holes and conduits by influxing from the plurality of holes, merging at the center, and the substances in between collide with each other and collide with the wall. It is configured to be removed.

  5 to 10 are diagrams showing an example of a conventional atomization apparatus that operates on the same principle as the substance atomization apparatus described in Patent Document 1, FIG. 5 is a plan view, and FIG. FIG. 7 is a front view of the inner cylinder, FIGS. 8 and 9 are sectional views taken along lines 8-8 and 9-9 in FIG. 6, respectively, and FIG. 6 is a schematic end view showing a lower portion of 6 rotated 45 degrees around an axis. FIG.

  The atomization apparatus 10 includes an inner cylinder 2 having a cylindrical body having an appearance as shown in FIG. 7 and an outer cylinder having a cylindrical body coaxially fitted to the outer periphery of the inner cylinder 2 as shown in FIG. The inner cylinder 2 includes a funnel-shaped inlet opening 4 that opens on one end surface 2a thereof, and a substantially intermediate portion in the length direction of the inner cylinder 2 along the axis L from the lower end of the inlet opening 4. An inlet cavity 5 extending inward to a position and an outlet cavity 7 having a smaller diameter than the inlet cavity 5, which communicates with an outlet opening 6 opened on the other end surface 2 b of the inner cylinder 2 and extends inward along the axis L, are coaxial. The inlet cavity 5 and the outlet cavity 6 are separated from each other by a partition wall 8. A wall surface 8 a on the inlet cavity 5 side of the partition wall 8 forms a plane substantially orthogonal to the axis L.

  On the outer wall surface of the inner cylinder 2, a large-diameter inlet flange portion 2c having an inlet opening 4, a small-diameter barrel portion 2d incorporating an inlet cavity 5, a partition wall 8 and an outlet cavity 7, a flange portion 2c and a trunk portion An intermediate portion 2e formed between the portion 2d and having an intermediate outer diameter between the two portions and an outlet flange portion 2f having substantially the same diameter as the intermediate portion 2e are provided in a stepped manner. Then, both end portions of the outer cylinder 3 are fitted into the intermediate portion 2e and the outlet flange portion 2f, respectively, so that the space between the outer wall surface of the body portion 2d of the inner tube 2 and the inner wall surface 3a of the outer tube 3 is reduced. A cylindrical closed space 9 is formed.

  As is apparent from FIG. 8, the upper portion of the body portion 2d containing the inlet cavity 5 passes through the peripheral wall of the body portion 2d in the radial direction and communicates the inlet cavity 5 with the closed space 9 in total. A plurality of orifices 11 (first orifice group) are formed. These orifices 11 are aligned in a direction parallel to the axis L three by three to form four orifice rows, and these orifice rows are arranged at an angular interval of approximately 90 degrees in the circumferential direction.

  The lower portion of the body portion 2d containing the exit cavity 7 has a smaller diameter than the orifice 11 and penetrates the peripheral wall of the body portion 2d in the radial direction to allow the closed space 9 to communicate with the exit cavity 7. Sixteen orifices 12 (second orifice group) are formed. These orifices 12 are aligned in a direction parallel to the axis L by four to form four orifice rows, and these orifice rows are also substantially 90 ° rows in the circumferential direction, as clearly shown in FIG. Although they are arranged at an angular interval, they are formed at positions displaced by approximately 45 degrees in the circumferential direction with respect to the row of orifices 11 constituting the first orifice group.

The operation of the atomizing device 10 will be described with reference to FIG. 10 which is a schematic end view showing the portion below the partition wall 8 in FIG. 6 rotated around the axis L by 45 degrees. The introduced raw material made of a liquid containing particles of the substance to be atomized and pressurized by a pump flows into the inlet cavity 5 from the inlet opening 4, and the wall surface 8 a on the inlet cavity 5 side of the partition wall 8. , Further flows out into the closed space 9 through the four orifices 11, the substances collide with each other in the meantime, and collide with the wall surface 8 of the partition wall 8 and the inner wall surface 3 a of the outer cylinder 3. As it is atomized, the lump of fine particles is loosened. The raw material that has flowed out into the closed space 9 further flows into the outlet cavity 7 from four directions through the orifice 12, and when the materials collide with each other, the particles are further atomized and flow out from the outlet opening 6. become.
Japanese Patent No. 2527297

  The above-described atomizing apparatus 10 has an excellent processing function with a simple configuration. However, since the wall surface 8a on the inlet cavity 5 side of the partition wall 8 is a plane substantially orthogonal to the axis L, this A high-viscosity substance that collides perpendicularly to the wall surface 8a adheres to and stays on the wall surface 8a, and the accumulated material solidifies with time, resulting in a deposit D as shown in FIG. Therefore, the wall surface 8a of the partition wall 8 not only loses its function as a wall surface that causes a substance to collide and atomize or loosen a lump of fine particles, but also the deposit D blocks the orifice 11 in the vicinity thereof. There was a problem.

  Therefore, an object of the present invention is to prevent substances from staying on the wall surface of the partition wall on the inlet cavity side in this kind of atomization apparatus.

  The present invention relates to a cylindrical inner cylinder having an inlet cavity and an outlet cavity that are separated from each other by a partition wall and extend along an axis, and a cylindrical closed space is formed between the inner cylinder and the inner cylinder. An outer cylinder fitted on the outside of the inner cylinder, a first orifice group that radially penetrates the wall of the inner cylinder from the inlet cavity and communicates the inlet cavity with the closed space, and a radial wall of the inner cylinder from the outlet cavity A second orifice group penetrating through the closed space and communicating the closed space with the outlet cavity, and a liquid containing particles of a substance to be atomized under pressure flowing into the inlet cavity from the outside is provided in the partition wall. Colliding with the wall on the inlet cavity side and flowing out into the closed space through the first orifice group, flowing into the outlet cavity from the closed space through the second orifice group, In atomization device configured comprising material to flow out to the outside from and is characterized in that a projection on the inlet cavity side wall of the partition wall.

  The protrusion preferably forms a conical surface that protrudes toward the inlet cavity and is coaxial with the inner cylinder. The conical surface is formed by embedding a plug having a conical portion in the partition wall. Is more preferable. The plug includes a shaft portion, and a conical portion having a larger diameter than the shaft portion and having an outer diameter that can be inserted into the inlet cavity and coaxially connected to one end of the shaft portion. The shaft portion is provided in the partition wall in such a manner that the shaft portion is embedded from the inlet cavity side in a hole formed coaxially in the wall, and the conical portion forms the protrusion.

  According to an embodiment of the present invention, the first orifice group is aligned on the peripheral wall surface of the inlet cavity in a direction parallel to the axis at an angular interval of approximately 90 degrees from each other in the circumferential direction of the inner cylinder. And the second orifice group is circumferentially spaced apart from each other by approximately 90 degrees in the circumferential direction of the inner cylinder with respect to each row of the first orifice group. And four orifice rows aligned on the peripheral wall surface of the outlet cavity in a direction parallel to the axis.

  It is preferable that the orifices constituting the second orifice group have a smaller diameter and a larger number than the orifices constituting the first orifice group.

  According to the present invention, by providing a protrusion on the wall surface of the partition wall on the inlet cavity side, in particular, the protrusion forms a conical surface coaxial with the inner cylinder protruding to the inlet cavity side. Since the particles of the substance that has flowed into the inlet cavity collide obliquely against the wall surface of the partition wall and are diverted in the radial direction, the substance does not adhere to and stay on the wall surface of the partition wall, so It is possible to prevent the solidified matter from being deposited on the surface.

  In addition, it is difficult to machine the inner cylinder having the conical surface integrally by machining, but by embedding a separate plug having a conical portion in the partition wall, the wall surface of the partition wall can be reduced. It can easily be a conical surface.

  Hereinafter, the apparatus for atomizing a substance according to the present invention will be described with reference to FIGS.

  1 is a plan view, FIGS. 2 and 3 are cross-sectional views taken along lines 2-2 and 3-3 in FIG. 1, respectively, and FIG. 4 is a lower portion of FIG. 2 replaced with a lower portion of FIG. That is, it is a schematic end view corresponding to FIG.

  The wall 8a on the inlet cavity side of the partition wall 8 in the conventional atomization apparatus 10 described with reference to FIGS. 5 to 11 forms a flat surface substantially perpendicular to the axis L, whereas The substance atomization apparatus 1 according to the embodiment is characterized in that the wall surface on the inlet cavity side of the partition wall 8 forms a conical surface 16a coaxial with the axis.

  For this reason, in the present embodiment, as shown in FIG. 3, an axial hole 8b that connects the inlet cavity 5 and the outlet cavity 7 is formed at the center of the partition wall 8, and the axial hole 8b Plug P is embedded.

  The plug P has a shaft portion 15 embedded in the shaft hole 8 b of the partition wall 8, an outer diameter that is larger than the shaft portion 15 and slightly smaller than the inner diameter of the inlet cavity 5. The conical portion 16 is integrally and coaxially connected to one end. As shown in FIG. 3, the shaft portion 15 is embedded in the shaft hole 8b of the partition wall 8 from the inlet cavity 5 side as shown in FIG. As shown, a wall surface of the partition wall 8 on the inlet cavity 5 side is formed by the conical surface 16 a provided in the conical portion 16.

  The atomization apparatus 1 according to the present embodiment is configured except that the plug P is embedded in the partition wall 8 and the wall surface on the inlet cavity 5 side is a conical surface 16a protruding toward the inlet cavity 5 side. 5 to 11 have the same configuration as the conventional atomization apparatus 10 described with reference to FIG. 5 to FIG. 11, corresponding parts in FIG. 1 to FIG. .

  As apparent from the above description, according to the present embodiment, the wall surface on the inlet cavity 5 side of the partition wall 8 is the conical surface 16 a coaxial with the inlet cavity 5, so that it flows into the inlet cavity 5. As apparent from FIG. 4, the particles of the substance collide obliquely with the wall surface of the partition wall 8 and are changed in the radial direction, so that the substance does not adhere and stay on the wall surface of the partition wall 8. It is possible to prevent the solidified matter from being deposited on the wall surface of the wall 8.

  Further, since the conical surface 16a is formed by embedding a separate plug P having the conical portion 16 in the partition wall 8, the processing of the inner cylinder 2 is extremely easy, and the conventional atomization apparatus 10 is finely divided. It is very easy to modify the conversion apparatus 1.

It is a top view of one embodiment of the atomization device by the present invention. FIG. 2 is a cross-sectional view taken along line 2-2 in FIG. FIG. 3 is a cross-sectional view taken along line 3-3 in FIG. 1. FIG. 3 is a schematic end view showing the lower part of FIG. 2 rotated 45 degrees around an axis. It is a top view of the conventional atomization apparatus. FIG. 6 is a cross-sectional view taken along line 6-6 of FIG. It is a front view of the inner cylinder which the atomization apparatus of FIG. 1 provides. FIG. 8 is a cross-sectional view taken along line 8-8 in FIG. 6. FIG. 9 is a cross-sectional view taken along line 9-9 in FIG. 6. FIG. 7 is a schematic end view showing the lower part of FIG. 6 rotated 45 degrees around the axis. FIG. 11 is a partial view of FIG. 10 for explaining a defect of a conventional atomization apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,10 Atomization apparatus 2 Inner cylinder 3 Outer cylinder 4 Inlet opening 5 Inlet cavity 6 Outlet opening 7 Outlet cavity 8 Partition wall 9 Closed space 11,12 Orifice 15 Plug shaft part 16 Plug conical part 16a Conical surface P Plug

Claims (5)

A cylindrical inner cylinder having an inlet cavity and an outlet cavity that are separated from each other by a partition wall and extend along the axis, and a closed space is formed between the inner cylinder and the outer cylinder. A worn outer cylinder, a first orifice group that radially passes through the wall of the inner cylinder from the inlet cavity to communicate the inlet cavity with the closed space, and a wall of the inner cylinder that radiates from the outlet cavity A second orifice group penetrating in a direction to communicate the closed space with the outlet cavity, and a liquid containing particles of a substance to be atomized under pressure flowing into the inlet cavity from the outside, The partition wall collides with the wall surface on the inlet cavity side, flows out to the closed space through the first orifice group, and exits from the closed space through the second orifice group. In atomization device configured comprising material as flows, flows out from the outlet cavity to the outside,
Protrusions projecting toward the inlet cavity and forming a conical surface coaxial with the inner cylinder are provided on the wall of the partition wall on the inlet cavity side, and the liquid containing the particles of the substance flowing into the inlet cavity is partitioned. An apparatus for atomizing a substance, characterized in that it collides obliquely with the wall surface of the wall, changes its direction in the radial direction, and flows out into the closed space through the first orifice group . The apparatus for atomizing a substance according to claim 1 , wherein the closed space is formed in a cylindrical shape between the inner cylinder and the outer cylinder fitted to the outside .   A plug comprising: a shaft portion; and a conical portion having a larger diameter than the shaft portion and having an outer diameter that can be inserted into the inlet cavity and coaxially connected to one end of the shaft portion. The shaft portion is embedded in a hole formed coaxially in the wall from the inlet cavity side, and is provided on the partition wall, and the conical portion forms the protrusion. 2. A device for atomizing substances according to 2. A cylindrical inner cylinder having an inlet cavity and an outlet cavity that are separated from each other by a partition wall and extend along the axis, and a closed space is formed between the inner cylinder and the outer cylinder. A worn outer cylinder, a first orifice group that radially passes through the wall of the inner cylinder from the inlet cavity to communicate the inlet cavity with the closed space, and a wall of the inner cylinder that radiates from the outlet cavity A second orifice group penetrating in a direction to communicate the closed space with the outlet cavity, and a liquid containing particles of a substance to be atomized under pressure flowing into the inlet cavity from the outside, The partition wall collides with the wall surface on the inlet cavity side, flows out to the closed space through the first orifice group, and exits from the closed space through the second orifice group. In atomization device configured comprising material as flows, flows out from the outlet cavity to the outside,
Providing a projection on the wall surface on the inlet cavity side of the partition wall,
The first orifice group is composed of four rows of orifices aligned on the peripheral wall surface of the inlet cavity in a direction parallel to the axis and spaced apart from each other by an angular interval of about 90 degrees in the circumferential direction of the inner cylinder. And
The relationship in which the second orifice group is offset by approximately 45 degrees in the circumferential direction with respect to each row of the first orifice group at an angular interval of approximately 90 degrees from each other in the circumferential direction of the inner cylinder. The apparatus for atomizing a substance is composed of four rows of orifices aligned on the peripheral wall surface of the outlet cavity in a direction parallel to the axis.   5. The apparatus for atomizing a substance according to claim 4, wherein the orifices constituting the second orifice group are smaller in diameter and larger in number than the orifices constituting the first orifice group.

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