JPH0215864Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a powder distribution device for distributing powder such as coal that has been pulverized to a predetermined particle size to a plurality of locations.

[Conventional technology]

FIG. 6 shows the main parts of a coal splitter, which is one of the conventional powder distribution devices.

In the figure, the reference numeral 1 indicates a casing, and a cylindrical supply port 2 is provided at the center of the upper end of the casing 1 to supply coal from a hopper or the like (not shown).

The supply port 2 is surrounded by a ring-shaped partition plate 3, and a ring-shaped space 6 is formed by the side wall of the casing 1, the top plate 4 of the casing, and the lower partition plate 5. .

An air supply port 7 is provided in communication with this space 6 .

Further, an opening 5a is formed in the lower partition plate 5, and air at a predetermined pressure is supplied into the casing 1 from the supply port 7 through the opening 5a.

Moreover, what is designated by the reference numeral 8 is a distribution tube, which is located in the center of the casing 1, and has a coal supply port 2 fitted into its upper end.

This distribution cylinder 8 is provided in an inclined manner, and its lower end faces above the distribution section which will be described later.

A midway portion of the distribution tube 8 is fixed by bearings 9 and 10 to the upper end of a rotating shaft 11 rotatably supported on the casing 1.

The rotating shaft 11 is rotated by a motor (not shown) via a belt or the like.

Furthermore, a cylinder 12 surrounding the rotating shaft 11 is provided on the bottom plate 1a at the bottom of the casing 1, and a plurality of partition plates 13 are arranged radially from this cylinder 12 until it touches the inner peripheral surface of the casing 1. and constitutes a plurality of distribution sections 14.

An outlet 15 is connected to each distribution compartment 14 through the casing 1 .

Based on the above-described structure, the distribution cylinder 8 is rotated,
When coal is supplied from the coal supply port 2 while supplying air at a predetermined pressure into the casing 1 from the supply port 7 through the opening 5a, the rotating distribution tube 8 distributes the coal approximately to each distribution section 14. Coal can be distributed evenly.

[Problem that the invention attempts to solve]

By the way, if we adopt the structure described above,
A plurality of distribution sections 14 are formed at a predetermined height in the lower part, and since the inclined distribution cylinder 8 must be rotated, the rotation shaft 11 is attached to the bottom plate 1a.
The amount of protrusion from the base becomes longer, resulting in a cantilevered support state.

As a result, the strength of the rotating shaft 11 must be increased, its diameter must be increased, or it must be made of expensive material. Moreover, the power also increases. The object of the present invention is to solve these conventional problems and provide a powder distribution device that can reliably distribute powder and granules.

[Means for solving problems]

In order to achieve the above object, the present invention has a powder supply port in the upper part of the casing, an air supply port in a part of the casing, and a powder discharge port in the lower part of the casing in the circumferential direction. A powder and granule distribution device in which rotatable distribution means are provided at predetermined angular intervals and are attached to a casing via a rotating shaft for distributing powder and granule supplied from a powder and granule supply port,
The distributing means is rotatably arranged near the bottom surface of the casing, and the distributing means has a receiving part in the center for receiving the powder and granular material falling from the lower end of the powder and granular material supply port,
A plurality of discharge sections that communicate with the receiving section and distribute and discharge powder and granular materials are arranged extending outward from the receiving section, and the lower portions of the receiving section and the discharge section have a bottom plate, and , the discharge section has at least a side wall extending upward from the bottom plate thereof, and the discharge port end of the discharge section is located near the powder discharge port of the casing; A structure is adopted in which the powder is directly distributed toward the powder outlet.

[Effect]

If such a structure is adopted, the distribution means can be rotated near the bottom of the casing, and the distribution means to be distributed can be brought close to the bottom of the casing,
It can be distributed directly toward the discharge port, and the length of the rotating shaft can be shortened. The granular material is then supplied from the lower end of the granular material supply port to the granular material receiving section in the center of the rotating distribution means, and is further introduced into a plurality of discharge sections extending outward from the receiving section, In the receiving section and the discharge section, the powder and granules are guided by the bottom plate and side walls of the distributing means by rotation, and are surely sent toward the end of the discharge port, and are further discharged from the end of the discharge port. The powder and granules are reliably sent to a plurality of discharge ports of the casing located in the vicinity, and the distribution action is performed with high precision.

〔Example〕

Hereinafter, the present invention will be explained in detail based on embodiments shown in the drawings.

[First Embodiment] FIGS. 1 to 3 illustrate the first embodiment of the present invention. In the figures, the same or equivalent parts as in FIG. 1 are denoted by the same reference numerals. The explanation will be omitted.

The reference numeral 16 in FIG. 1 is a distribution means, which in this embodiment has a shape as shown in FIG. 2 or 3.

That is, a vertically disposed cylinder 16a serving as a powder receiving section is provided in the center of the distribution means 16, and a discharge port 16b serving as a discharge compartment is provided at the lower end of the cylinder 16a. They are provided so as to extend outward from center 16a and protrude in opposite directions. Note that a bottom plate (a portion corresponding to the position indicated by the lowest horizontal line of the cylinder body 16a and discharge port 16b in FIG. 1) is provided below the cylinder body 16a and the discharge port 16b of the distribution means 16. In addition, the outlet 16b is a cylinder whose periphery is closed with this bottom plate as one component, and corresponds to the position of the upper and lower lines of the outlet 16b in FIG. 2 or 3. The portion is configured as a side wall in the present invention. The powder and granules supplied to the rotating distribution means 16 are guided by a cylinder consisting of a bottom plate at the bottom of the cylinder 16a, a bottom plate and side walls of the discharge port 16b, and are reliably guided to the discharge end of the discharge port 16b.

These discharge ports 16b may extend in a spiral shape as shown in FIG. 2, or may extend in a straight line. The end of the discharge port 16b is located near the powder discharge port 15 of the casing 1.

The distribution means 16a is connected to the upper end of a rotating shaft 11 which extends through the bottom plate 1a of the casing 1 and is rotatably supported by a bearing 10, as shown in FIG. Since the distribution section 14 is not provided on the bottom plate 1a of the casing as in the conventional case, it can be arranged near the bottom plate 1a.

Therefore, the amount of protrusion of the rotary shaft 11 from the bottom plate 1a can be shortened, and large strength is not required as in the conventional case.

Based on the above-described structure, during distribution, the coal supplied from the coal supply pipe 2 enters the cylinder 16a,
It is directly supplied to the vicinity of the discharge port 15 from the rotating discharge port 16b.

Then, air at a predetermined pressure is supplied through the opening 5a of the partition plate and is discharged to the outside from the discharge port 15.

Since this embodiment is configured as described above,
There is no need for a distribution section at the bottom of the casing as in conventional devices, which simplifies the structure.The distribution means can be located near the bottom plate of the casing, and the material and structure of the rotating shaft are inexpensive, making manufacturing easy. can be made into something. Further, when coal is introduced into the cylinder 16a from the coal supply port, it is supported by the bottom plate without leaking to the outside, and is further sent to the discharge port 16b by the rotation of the distribution means 16.
Since the coal is slid on the bottom plate and sent to the end of the discharge port, the coal is reliably delivered in portions. Moreover, since the coal discharged from the end of the discharge port 16b is immediately sent to the discharge port 15 of the casing 1 located nearby, the coal is reliably fed there.

[Second Embodiment] FIGS. 4 and 5 illustrate the second embodiment of the present invention. In FIGS. 1 to 3, the same or corresponding parts are given the same reference numerals. However, the explanation thereof will be omitted.

In this embodiment, a structure as shown by reference numeral 17 was adopted as the distribution means.

That is, as shown in FIG. 5, the distributing means 17 has a substrate 18 as a bottom plate of a circular umbrella shape with a raised center.
A radial partition plate 19 is provided on this substrate 18.
are formed in multiple numbers. The highest umbrella-shaped central portion of the dispensing means 17 in FIG. 4 and the circular central portion in FIG. 5 constitute a powder receiving portion of the distributing means.

A plurality of distribution compartments 19 are provided by this partition plate 19.
a is formed. Note that this distribution section 19a
is the discharge section in the present invention, and its end portion is located close to the discharge port 15 of the casing 1, as shown in FIG. Further, the partition plate 19a, which is a component of the distribution section 19a, is a side wall in the present invention.

Further, the center of the substrate 18 is fixed to the upper end of the rotating shaft 11.

When the distribution means 17 is rotated based on the above structure and coal is dropped from the coal supply port 2,
Coal is introduced into the receiving section at the center of the rotating distribution means 17, falls uniformly into each distribution section 19a, is guided upward by the substrates 18 and partition plates 19, and slides to the ends thereof. The coal is then discharged and then fed into the outlet 15 of the casing 1 in its vicinity, ensuring even distribution of the coal.

Even if such a structure is adopted, effects similar to those of the above-mentioned embodiments can be obtained.

〔effect〕

As is clear from the above description, according to the present invention, the distribution section is eliminated and the distribution means is rotatably provided near the bottom plate of the casing, so the distribution means can be placed at a low position within the casing. , the rotation axis for rotating the distribution means can be shortened.

As a result, the strength of the rotating shaft does not need to be very high, and expensive materials are not required.
It can be miniaturized and the power required can be extremely small.

In addition, since the powder and granules are fed into the receiving section at the center of the distribution means from above, the rotating action of the distribution means ensures that the powder and granules are in communication with the reception section and are delivered to each discharge section extending outward from there. It can be distributed and sent to The receiving section and the discharging section have a bottom plate at the bottom thereof, and the discharging section has at least a side wall extending upward from the bottom plate. The powder and granules introduced from the mouth are received on the bottom plate, and further, the powder and granules are guided by the bottom plate and the side wall in each discharge compartment by the rotation of the distribution means on the bottom plate, and are then discharged. Since the powder can be fed toward the outlet end, the powder and granules can be reliably fed through the discharge section, and the powder and granules can be reliably discharged from the outlet end. Further, since the discharge end of this discharge compartment is located close to the powder discharge ports arranged at predetermined angular intervals in the circumferential direction of the lower part of the casing, discharge from each discharge compartment of the distribution means is possible. The powdered material is reliably sent to each outlet of the casing. In this way, the powder or granular material can be reliably distributed with high precision.

[Brief explanation of the drawing]

Figures 1 to 3 explain the first embodiment of the present invention, with Figure 1 being a side view of the main parts, and Figures 2 and 3 explaining different structural examples of the distribution means. The plan view, FIGS. 4 and 5 illustrate the second embodiment of the present invention, and FIG. 4 is a side view of the main parts.
FIG. 5 is a plan view of the distribution means, and FIG. 6 is a longitudinal sectional side view illustrating the conventional structure. DESCRIPTION OF SYMBOLS 1... Casing, 2... Coal supply port, 6... Annular space, 7... Air supply port, 11... Rotating shaft, 15... Discharge port, 16, 17... Distribution means.

Claims (1)

[Scope of utility model registration request] The upper part of the casing has a powder supply port, a part of the casing has an air supply port, and the lower part of the casing has powder discharge ports at predetermined angular intervals in the circumferential direction. In a powder distribution device in which a rotatable distribution means for distributing powder and granule supplied from a powder and granule supply port is attached via a rotating shaft, the distribution means is rotatably arranged near the bottom surface of a casing, This distribution means has a receiving part for the powder and granular material falling from the lower end of the powder and granular material supply port in the center, and a discharge section that communicates with the receiving part and distributes and discharges the powder and granular material is arranged around the receiving part. A plurality of receiving portions and a lower part of the discharge compartment have a bottom plate, and the discharge compartment has at least a side wall extending upward from the bottom plate,
The discharge port end of the discharge section is located near the powder discharge port of the casing, and the powder is directly distributed in the direction of the powder discharge port of the casing. Powder and granule distribution equipment.