JPH0622432Y2 - Distributor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a distributor for distributing a powder or granular material conveyed by an air flow through a transportation pipe to a plurality of branch pipes together with the air flow.

(Prior Art) For example, when a powdery or granular material quantitative supply device is used to supply the powdery or granular material into a transport pipe and the powdery or granular material is transported to a predetermined place by an air flow, when there are a plurality of transportation locations, Need to be distributed with the air flow to multiple branch pipes. A conventional distributor used for such a purpose has a transport pipe 31 as shown in FIG.
A plurality of discharge ports 34 are formed on the ceiling wall 33 of the closed cylindrical casing 32 to which is connected, and a branch pipe 35 is connected to each of these discharge ports 34. Reference numeral 36 is a cover pipe that covers the plurality of branch pipes 35.

(Problems to be Solved by the Invention) In the above-described conventional configuration, for example, grains or chemicals or other powder particles injected from the transport pipe 31 into the casing 32 collide with the ceiling wall 33 of the casing 32. The body was sometimes crushed and the particle size was reduced. Therefore, the above-described conventional distributor may not be able to distribute the powder or granular material that needs to be conveyed with a constant particle size. Further, in the above-mentioned conventional distributor, powder particles are accumulated on the inner surface of the peripheral wall of the casing 32, etc. If left to stand, the amount of accumulation increases and solidifies due to moisture absorption, etc., and the discharge port 34 becomes clogged, making distribution impossible. However, it is necessary to regularly clean the inside of the casing 32, which is troublesome.

(Means for Solving the Problems) In order to solve the above problems, a distributor of the present invention is a distributor that distributes a powder or granular material conveyed by an air flow through a transport pipe into a plurality of branch pipes together with the air flow. A distributor main body having a vertical through hole in the center and a plurality of horizontal holes extending radially from the through hole to the outer periphery, and a three-way branch joint in which the transport pipe is connected to a first opening end. A first pipe having one end connected to one end opening of the through hole and the other end connected to a second opening end of the three-way branch joint; and one end connected to the other end opening of the through hole, and A second pipe having the other end connected to a third opening end of the three-way branch joint, and the branch pipes are respectively connected to the opening ends of the plurality of holes opposite to the through hole side. It is what

(Operation) The powder or granular material transported by the air flow in the transport pipe is supplied to the through hole of the distributor main body through the three-way branch joint and the first and second pipes, and the upper side inside the through hole in the vertical direction. The air currents toward and the air currents toward the lower side collide with each other, and the granular material is distributed to the plurality of holes in the horizontal direction together with the air currents.

(Embodiment) An embodiment of the present invention will be described below with reference to FIGS.

FIG. 1 is a schematic configuration diagram of a distributor according to an embodiment of the present invention, in which 1 is a cylindrical distributor main body made of, for example, acrylic, and the distributor main body 1 has an axial center along the vertical direction and a radial direction. Are arranged along the horizontal direction. A through hole 2 is formed in the center of the distributor body 1 along the axial direction. Further, a large number of holes 3 extending from the through hole 2 to the outer periphery of the distributor body 1 in the radial direction are radially formed. Is formed in. One end of a first pipe 4 made of, for example, urethane is connected to one end opening of the through hole 2, and the other end of the first pipe 4 is a T-shape in which a transport pipe 6 is connected to a first opening end 5. Is connected to the second open end 8 of the three-way branch joint 7. One end of a second pipe 9 made of urethane, for example, is connected to the other end opening of the through hole 2, and the other end of the second pipe 9 is connected to the third open end 10 of the three-way branch joint 7. There is. A branch pipe 11 is connected to an opening end of the hole 3 opposite to the through hole 2 side. The three-way branch joint 7 is made of, for example, resin, and the first opening end 5 and the second opening end 8 are in a straight line, while the third opening end 10 forms an angle of 90 degrees.

The distributor main body 1 includes, in detail, a lower member 14 shown in FIGS. 2 and 3 and an upper member 15 shown in FIGS. 4 and 5.
The lower member 14 is provided with packings 16 and 17 on the contact surface with the upper member 15. The lower member 14 has a large number of grooves 18 forming the holes 3 when the lower member 14 and the upper member 15 are combined on the upper surface.
Are formed radially, and a screw hole 19 into which a joint (not shown) for connecting one end of the first pipe 4 is screwed is formed in the center of the lower surface. A hole 20 that communicates with the screw hole 19 is formed in the center of the lower member 14, and a screw (not shown) for connecting the lower member 14 and the upper member 15 passes through the outer peripheral portion thereof. A large number of holes 21 are formed at equal intervals in the circumferential direction. A screw hole 22 into which a joint (not shown) for connecting one end of the second pipe 9 is screwed is formed in the center of the upper surface of the upper member 15. A hole 23 is formed. The upper member 15 is formed with a large number of screw holes 24 into which outer joints (not shown) for connecting the branch pipes 11 are screwed at equal intervals in the circumferential direction. When the member 14 and the upper member 15 are combined with each other, the hole 3 is communicated with the groove 18.
Form part of. The upper member 15 has a large number of screw holes 25 formed in the outer peripheral surface of the lower surface at regular intervals in the circumferential direction, into which the screws for connecting the lower member 14 and the upper member 15 are screwed. When the lower member 14 and the upper member 15 are connected, the screw hole 19 and the hole 20 of the lower member 14 and the hole 23 and the screw hole 22 of the upper member 15 form the through hole 2.

Next, the operation will be described. The powder or granular material transported by the air flow in the transport pipe 6 is supplied to the through hole 2 of the distributor body 1 via the three-way branch joint 7 and the first and second pipes 4 and 9. At this time, in the three-way branch joint 7 portion, the first pipe 4 is in line with the transportation pipe 6, the second pipe 9 makes an angle of 90 degrees with the transportation pipe 6, and the first pipe 4 Is located below the second pipe 9,
Almost all of the particles pass through the first pipe 4. The air flow passes through both the first and second pipes 4,9. Therefore, inside the through-hole 2, the powder particles moving upward and the air current flowing downward collide with the airflow, and the powder particles are distributed to the plurality of holes 3 together with the airflow. At this time, since the holes 3 communicating with the through holes 2 are along the horizontal direction, the influence of gravity acting on the powder particles during the distribution from the through holes 2 to the holes 3 is uniform. Are evenly distributed to each hole 3. The granular material that has passed through the holes 3 flows into the branch pipe 11, is transported by the air flow inside the branch pipe 11, and is supplied to a predetermined place.

In this way, since the particles are distributed by colliding with the air flow and changing the traveling direction, the particles collide with the wall and are crushed as in the conventional device, and the particle size becomes small. There is no such thing. In addition, since there is no dead space for accumulating the powder or granules, the powder or granules are not deposited and solidified due to moisture absorption or the like. Moreover, since the hole 3 is along the horizontal direction,
Since the influence of gravity acting on the powder and granules at the time of distribution is uniform, the powder and granules are uniformly distributed to each hole 3. Further, as in the present embodiment, using the T-shaped three-way branch joint 7, the transport pipe 6 is connected to the first open end 5, the first pipe 4 is connected to the second open end 8, and If the second pipe 9 is connected to the open end 10 of 3 and the first pipe 4 is connected to one end opening of the through hole 2, that is, the lower opening, the first open end 5 and the second open end. 8 and the fact that they are in a straight line and the effect of gravity acting on the powder and granules are combined, most of the powder and granules pass through the first pipe 4, so that It is very preferable that the powder particles hardly collide with each other and the crushing due to the collision of the powder particles can be favorably prevented.

(Other Embodiment) In the above embodiment, the distributor main body 1 having a cylindrical shape was used, but the present invention is not limited to such a configuration, and the distributor main body 1 may be, for example, a polygonal cylinder. You may use.

Further, although the T-shaped three-way branch joint 7 is used in the above embodiment, the present invention is not limited to such a configuration, and the three-way branch joint 7 may be, for example, a Y-shaped one.

(Effect of the Invention) As described above, according to the distributor of the present invention, since the powdery particles collide with the air flow and the traveling direction is changed, the powdery particles are distributed.
Unlike the conventional apparatus, the particle size does not decrease due to the powder particles colliding with the wall and being crushed. Therefore, even if the powder or granular material is easily crushed, it can be favorably distributed with a constant particle diameter. In addition, since there is no dead space for accumulating the powder or granules, the powder or granules are not deposited and solidified due to moisture absorption or the like. Therefore, the clogging of the powder and granules does not occur without periodical cleaning, which saves the labor of cleaning. Further, since each hole communicating with the through hole is along the horizontal direction, the influence of gravity acting on the powder / granular material during distribution is uniform, so that the powder / granular material can be uniformly distributed to each hole.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of a distributor in one embodiment of the present invention, FIG. 2 is a plan view of a main part of a lower member, FIG. 3 is a vertical sectional front view of the same, and FIG. 4 is a plan view of a main part of an upper member. FIG. 5 and FIG. 5 are front views of the same section, and FIG. 6 is a partially cutaway perspective view of a conventional distributor. 1 ... Distributor body, 2 ... Through hole, 3 ... Hole, 4 ... First pipe, 5 ... First open end, 6 ... Transport pipe, 7 ...
... 3-way branch joint, 8 ... second open end, 9 ... second pipe, 10 ... third open end, 11 ... branch pipe

Claims (1)

[Scope of utility model registration request] 1. A distributor for distributing a powdery or granular material conveyed by an air flow through a transport pipe into a plurality of branch pipes together with the air flow, having a vertical through hole in a central portion, and radially radiating from the through hole. A distributor main body having a plurality of horizontal holes extending to the outer periphery, a three-way branch joint to which the transport pipe is connected to a first opening end, one end connected to one end opening of the through hole, and the other end described above. A first pipe connected to a second opening end of the three-way branch joint, and a first pipe having one end connected to the other end opening of the through hole and the other end connected to a third opening end of the three-way branch joint. A pipe is provided, and the branch pipes are respectively connected to open ends of the plurality of holes opposite to the through hole side.