JP2013112441A - Equally distributing device of grain - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a technique for leveling grains without requiring operations by a person in a tank when the inside of the tank is filled with the grains.SOLUTION: This equally distributing device of grains includes a rotating body 2 for distributing the grains to be input, a rotating shaft 3 provided to the rotating center of the rotating body 2, and a rotating drive section 1 joined to the rotating shaft 3. The rotating body 2 includes opening holes 6 and blades 5. When the grains 8 are introduced onto the rotating body 2 under rotation, a part of the grains 8 is distributed through the opening holes 6, and falls under the rotating body 2. The other part of the grains 8 is distributed by the surface of the rotating body and the blades 5, and falls to the periphery of the rotating body. Consequently, the grains 8 are sprayed flat in an activated charcoal adsorption tower.

Description

  Embodiments of the present invention relate to a granule leveling apparatus that can be installed in a packed tower or the like packed with granules.

  When filling the activated carbon adsorption tower used in water treatment with new activated carbon, it was necessary for a person to enter the activated carbon pile that was transported mechanically and evenly.

  However, the working environment in which activated carbon dust flies is harsh, and there is a risk of life such as an oxygen deficiency accident.

  Conventionally, as a grain leveling device, there is a technology that includes a rotating fan and also serves as an outside air ventilation mechanism. However, this technique can be used only when there is a place where outside air exists, and since it uses wind power, there is a problem of dust when applied to an activated carbon adsorption tower. As another grain leveling apparatus, there is a technique of leveling a grain directly against a rotating leveling blade. However, in order to bring the input into contact with the leveling device, it is necessary to raise or lower either, and it is difficult to apply to an activated carbon adsorption tower having obstacles such as piping inside.

  As described above, in a poor working environment such as an activated carbon adsorption tower, it is desired to realize a technique for flattening particles such as activated carbon without a person entering the tank to work.

JP-A-10-108541 JP 2002-213876 A

  An object of the embodiment is to provide a technique for flattening a granule without filling a tank into a tank and working by a person entering the tank.

  According to the embodiment, the rotating body having openings and blades for distributing the charged particles, the rotating shaft provided at the rotation center of the rotating body, and the rotation driving unit connected to the rotating shaft There is provided a granule leveling apparatus characterized by comprising:

It is a figure showing the structure of the granular material equalizing apparatus concerning embodiment. It is the figure which looked at the rotary body of FIG. 1 from the top. It is a graph showing the example which changed the frequency of the electric motor. It is the schematic showing the structure of the activated carbon adsorption tower which provided the granule equalizing apparatus concerning embodiment.

  The granular material leveling apparatus according to the embodiment includes a rotating body for distributing the charged granular material, a rotating shaft provided at the rotation center of the rotating body, and a rotation driving unit connected to the rotating shaft.

  The rotating body has an opening and a blade.

  The granule leveling apparatus according to the embodiment can be attached to the top of a tank such as an activated carbon adsorption tower. When the granular material is introduced onto the rotating rotator, a part of the granular material is distributed through the aperture and falls below the rotator. On the other hand, the other part of the granule is distributed by the surface of the rotating body and the blade, and falls around the rotating body. In this way, the particles are dispersed flatly in the activated carbon adsorption tower. As a result, when filling particles such as activated carbon into a tank such as an activated carbon adsorption tower, the particles can be leveled even if the person does not enter the tank and work.

  Hereinafter, embodiments will be described with reference to the drawings.

  FIG. 1: shows the figure showing the structure of the particle equalizing apparatus concerning embodiment.

  FIG. 2 shows a view of the rotating body of FIG. 1 as viewed from above.

  As shown in FIG. 1, a granule leveling apparatus 10 according to an embodiment includes a rotating body 2, a motor 1 that can be driven to rotate, and a shaft 3. The rotating body 2 has, for example, a conical shape with an open bottom. The rotating body 2 is connected to the electric motor 1 by the shaft 3 and is rotated by the operation of the electric motor 1.

  As shown in FIGS. 1 and 2, a plurality of apertures 6 and blades 5 are provided on the surface of the rotating body 2.

  The guide tube 4 can be provided above the rotating body 2 as necessary. With the guide tube 4, the charged particles can be guided onto the rotating body 2. The granule 8 guided to the rotating body 2 by the guide tube 4 hits the blade 5 and is blown obliquely downward. At this time, if the rotational speed of the electric motor 1 is faster, the centrifugal force becomes larger and the motor 1 is moved further away. On the other hand, if the rotational speed is slow, the centrifugal force is small and it is dropped closer. By changing the number of revolutions as necessary, it is possible to change the distance to fly obliquely downward.

  For this reason, as the electric motor 1, what can change a rotation speed with an inverter can be used.

  FIG. 3 shows a graph showing an example in which the frequency of the electric motor is changed using the inverter function.

  This graph represents the relationship between the elapsed time and the frequency of the electric motor.

  In this case, the motor is operated at a constant frequency for about 80 minutes from the start of operation, and then the frequency of the motor is changed at 10-minute intervals, and this is repeated three times.

  In this way, when an electric motor having an inverter function is used, the particles can be filled while changing the rotation speed.

  The opening 6 provided in the rotating body 2 may have a size that allows a part of the granule 8 to pass therethrough. If the size of the opening 6 is such that the particles 8 are almost transmitted, there is a tendency that most of the particles fall just below the rotating body and the particles cannot be leveled flat. On the other hand, if the size of the opening 6 is such that the particle 8 hardly penetrates, most of the particles tend to fall only around the rotating body and the particles cannot be evenly flattened. .

  The guide tube 4 can have a cylindrical shape. Further, in order to reliably introduce the charged particles 8 to the vicinity of the center of the rotating body 2, a cylindrical object having a smaller diameter than the rotating body 2 can be used.

  In FIG. 4, the schematic showing the structure of the activated carbon adsorption tower which attached the granule equalizing apparatus concerning embodiment is shown.

  As shown in the figure, the granule leveling apparatus 10 according to the embodiment can be attached to the top of the activated carbon adsorption tower 7. By using this particle leveling device 10, it is possible to fill the particles while leveling them even if a person does not enter the tank and work.

  As described above, when the granule leveling apparatus according to the embodiment is used, it is possible to eliminate the trouble of the leveling operation after putting the granule into the container and the risk of an oxygen deficiency accident occurring during the operation.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

  DESCRIPTION OF SYMBOLS 1 ... Electric motor, 2 ... Rotating body, 3 ... Shaft, 4 ... Guide pipe, 5 ... Blade, 6 ... Opening, 7 ... Activated carbon adsorption tower, 8 ... Granule, 10 ... Granule equalizing device

Claims (6)

  It has an opening and a blade, and comprises a rotating body for distributing the charged particles, a rotating shaft provided at the rotating center of the rotating body, and a rotation driving unit connected to the rotating shaft. Granule leveling device.   The granule leveling apparatus according to claim 1, wherein the rotating body has a conical shape with an open bottom.   The granule leveling apparatus according to claim 1, wherein the opening has a size that allows a part of the granule to pass therethrough.   The granular material leveling device according to any one of claims 1 to 3, wherein the rotation driving unit has an inverter function and is capable of changing a rotation speed.   The granular material leveling apparatus according to any one of claims 1 to 4, further comprising a guide for guiding the charged granular material onto the rotating body.   The granule leveling apparatus according to claim 5, wherein the guide has a cylindrical shape.

Images