JP2006248718A - Powder input device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To realize a relatively inexpensive powder input device hardly causing blockage of powder, stably continuously operable and allowing an input amount and an input speed to be easily adjusted. <P>SOLUTION: This powder input device 10 includes: a storage tank 6 for storing the powder; a rotating body 1 positioned in the storage tank 6 and having one or more recessed parts 7 sequentially filled with the stored powder 4; and a motor 8 for rotatably driving the rotating body 1. The powder 4 filled in the recessed parts 7 is provided by being dropped downward from a powder input port 2 by every predetermined amount basis with the rotation of the rotating body 1. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a powder feeding apparatus, and more particularly to a powder feeding apparatus capable of continuously feeding a predetermined amount of powder.

A powder input device capable of continuously supplying a predetermined amount of powder is required in various fields, for example, chemical compounding, cement compounding, polishing device, water treatment device, sludge treatment device, etc. Various things have been developed.
For example, as disclosed in Patent Document 1, the powder in the storage tank is sent to the measuring tank by scraping fins, filled in the measuring hole of the rotating eye plate, and regulated by a scraping plate to supply port As disclosed in Japanese Patent Application Laid-Open No. 2004-28103 and Patent Document 2, a discharge hole is provided on the outer periphery of the cylindrical stirring chamber, a fixed discharge unit is provided below the stirring chamber, and the fixed discharge unit is centered on the axis. In which a predetermined amount of light specific gravity particles are discharged to the outer periphery by rotating to the outer periphery, and as disclosed in Patent Document 3, the outer peripheral wall surface and blade side surface of the supply panel, and the inner wall surface and bottom surface of the casing The weight of the powder passing through the measurement surface by opening a measurement hole in the bottom of the casing through which a predetermined amount of powder stored in the partitioned powder space passes, and arranging the measurement surface of the load cell in this measurement hole Measure the powder based on its weight value and the rotation speed of the supply board Those to meter the supply amount, and the like have been proposed.
JP 2004-286513 A JP 2002-292621 A JP 2004-309244 A

  However, each of the devices disclosed above has a drawback in that the configuration is complicated and expensive, and sufficient maintenance is required, resulting in high running costs. The input device used when the flocculant is input in the sewage treatment apparatus does not require the accuracy so far. However, in the conventional one, the flocculant is easily clogged in the charging process, and it is difficult to change the charging amount according to the water to be treated.

  Therefore, the object of the present invention is not required to be very accurate, but is relatively inexpensive, hardly clogged with powder, can be operated stably and continuously, and can easily control the input amount and the input speed. An object of the present invention is to provide a powder input device capable of performing the above.

  In order to achieve the above object, the present invention provides a storage unit for storing powder, and a rotating body that is located in the storage unit and has one or more recesses in which the stored powder is sequentially filled. And a driving means for driving the rotary body to rotate, wherein the powder filled in the recesses falls downward by a predetermined amount as the rotary body rotates. It is an object of the present invention to provide a powder injection device characterized by being provided.

  In the above configuration, it is desirable that the rotational speed of the rotator be variable.

  Further, it is desirable that the rotating direction of the rotating body can be switched as necessary or periodically.

  As described above, the present invention is a storage unit that stores powder, a rotary body that is located in the storage unit and has one or more recesses into which the stored powder is sequentially charged, and the rotary body is driven to rotate. A powder charging device having a driving means for causing the powder charged in the concave portion to drop downward by a predetermined amount along with the rotation of the rotating body to provide clogging. It is difficult to perform powder injection stably and efficiently. In addition, the rotational speed of the rotating body can be changed, and the rotational direction of the rotating body can be switched as necessary or periodically, so that the powder charging speed and amount can be easily adjusted. The charging device can be provided at a low price.

Hereinafter, a powder injection device according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.
FIG. 1 is a front view showing a part of a main part of a powder feeding apparatus according to an embodiment of the present invention, and FIG. 2 is a side view thereof.
As shown in FIGS. 1 and 2, the powder input device 10 receives a predetermined amount of the storage tank 6 in which the powder 4 is stored and the powder 4 stored in the storage tank 6, and receives the received amount. And a rotating body 1 for feeding the powder 4 downward from the powder inlet 2.

  In the above configuration, the powder 4 is charged into the storage tank 6 from the powder supply port 5 opened at the top of the storage tank 6. As shown in FIG. 2, the rotating body 1 is driven to rotate by a motor 8 around a rotating shaft 3, and one or a plurality of recesses 7 are formed on the outer periphery of the rotating body. . In the figure, an example is shown in which two recesses 7 are formed at opposing positions.

The operation of the powder feeding apparatus according to the embodiment of the present invention having the above configuration will be described with reference to FIGS.
First, it is assumed that the powder injection device 10 is provided on a place where the powder 4 is to be input. The powder 4 is previously supplied into the storage tank 6 from the powder supply port 5 on the upper side of the storage tank 6. The powder 4 supplied into the storage tank 6 is sequentially stacked, but the powder 4 located at the lowermost part is one or a plurality of concave portions provided on the outer periphery of the rotating body 1 by its weight. 7 is filled. In other words, the powder 4 is filled in the concave portion 7 by the capacity of the concave portion 7.

  In this state, when the motor 8 is turned on and the rotary shaft 3 is driven to rotate, the rotary body 1 rotates in a predetermined direction, and the powder 4 filled in the recess 7 of the rotary body 1 is rotated to rotate the storage tank 6. It is rotated downward while being rubbed off by the lower wall surface. When the powder input port 2 is reached, a predetermined amount determined by the capacity of the recess 7 is input downward from the powder input port 2. In addition, there is no restriction | limiting in particular in the rotation direction of the rotary body 1. FIG.

  As described above, the powder 4 filled in the concave portion 7 is dropped downward by a predetermined amount as the rotating body 1 rotates, so that the powder 4 can be charged stably and efficiently. It can be carried out.

  In addition, since the structure is relatively simple, the powder injection device 10 can be realized at a low cost, and the powder 4 is less likely to be clogged around the rotating body 1 and the powder injection port 2. Easy to clean and maintain. Further, the clogging of the powder 4 can be dealt with or prevented by changing the rotation direction of the rotating body 1 by switching the rotation of the motor 8 as necessary or periodically. Furthermore, by changing the number, size, or depth of the recesses 7 provided in the rotating body 1 or by changing the number of rotations of the motor 8, the amount of powder 4 charged, the charging interval, and the charging speed can be easily set. Can be changed.

  The powder input device of the present invention is basically developed for the input of the flocculant of the sewage treatment device, but since there are few restrictions on use, it can be used in any place where powder is input. Can be utilized in a wide range of industries.

It is a partially transparent front view of the powder injection device of the present invention. It is a side view of the powder injection device of the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Rotating body 2 Powder injection port 3 Rotating shaft 4 Powder 5 Powder supply port 6 Storage tank 7 Recess 8 Motor 10 Powder injection device

Claims (3)

A reservoir for storing powder;
A rotating body having one or a plurality of recesses in which the powder stored in the reservoir is sequentially filled;
A powder charging device having a driving means for rotating the rotating body,
The powder charging device, wherein the powder filled in the concave portion is provided by dropping downward by a predetermined amount as the rotating body rotates.   2. The powder feeding apparatus according to claim 1, wherein the rotational speed of the rotating body is variable.   The powder feeding device according to claim 1 or 2, wherein the rotating body is capable of switching the rotating direction as needed or periodically.

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