JPH0417519Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention relates to a hopper for supplying powder and granular material, and in particular, relates to an improvement of a hopper for supplying powder and granular material that supplies the powder and granular material inside the hopper to the outside using a stirring blade. It is.

(Conventional technology) For example, when cutting oil, polishing oil, hydraulic oil, etc.
As water and other impurities get mixed in, the oil gradually deteriorates, but as a filtration and regeneration system for this deteriorated oil, we have developed a system that uniformly mixes powdery wood chips into the deteriorated oil and then fills it with ceramic elements to remove impurities. The degraded oil is introduced into a device to purify it, but as shown in Figure 3, a device that uniformly mixes powder, e.g., finely crushed wood chips, into the degraded oil treated in the first stage is shown in Figure 3. , a stirring blade having a vertical rotation axis coaxial with the center line of the hopper is provided,
Furthermore, there was one in which a guide body 12 was attached to the lower part of the stirring blade.

(Problem that the invention aims to solve) However, as the hopper's cross-sectional area gradually decreases as it approaches the supply port, the bulk specific gravity of the powder and granules increases as it goes toward the bottom. Even if a guide body is installed in the feeder and the passage route is devised to make it easier for the powder or granules to move, the powder or granules will clog at the supply port.
There was a problem in that the shelf-fishing phenomenon was likely to occur, and as a result, it was impossible to evenly mix powder and granules such as wood chips with the degraded oil.

(Means for Solving the Problems) The present invention was made to solve the above-mentioned conventional problems. The purpose is to provide a hopper for use.

In order to solve the above-mentioned conventional problems, a hopper for supplying powder and granules is provided that supplies powder and granules to the outside from a lower supply port by rotation of a stirring blade, the rotating shaft of the stirring blade facing the supply port. The hopper for supplying powder and granular material has a configuration in which a spiral member mainly composed of an elastic member in the form of a coiled spring is vertically attached to the lower end or the center of rotation of the stirring blade so as to face the supply port. .

(Embodiment) An embodiment of the present invention will be described below with reference to the drawings. In the drawing, 1 is the entire hopper for supplying powder and granular material (hereinafter simply referred to as hopper), and the hopper 1 has a cylindrical portion 1A. and a funnel-shaped conical part 1B, both parts 1A and 1B are flanged together by bolts 15 and formed integrally, and the upper end of the cylindrical part 1A is closed by a lid 1E, which contains powder particles. A body input port 10 is provided. In addition, the conical part 1B
A small cylindrical portion 1D having a predetermined inner diameter and a predetermined length is integrally formed at the lower end of the . A stirring device is installed inside the hopper 1 formed in this manner.

Reference numeral 3 denotes a vertical rotation shaft of the stirring device, and the rotation shaft 3 is rotated along the center 1C of the hopper 1 via a bearing member 7 attached to a support member 13 provided on the lower side of the cylindrical portion 1A of the hopper 1. The upper end of the rotating shaft 3 is connected to a drive source, for example, a cyclo reducer 5, which is disposed above the hopper 1. Further, an upper stirring blade 2A and a lower stirring blade 2B having a plurality of stirring blades are keyed to the upper and lower parts of the rotating shaft 3. Further, a vertically oriented spiral member 6 is detachably attached to the lower end of the rotating shaft 3.

6 is the above-mentioned vertical spiral member,
The spiral member 6 includes, for example, an elastic member 6B formed of a wire having a substantially rectangular cross section into a coil spring shape having a predetermined coil outer diameter and a predetermined number of turns, and a mounting flange attached to one end of the elastic member 6B by welding means or the like. 6A, and is fixed to the end of the rotating shaft 3 by a mounting bottle 16 via the mounting flange 6A. In addition, when attaching this coiled spring-like elastic member 6B to the rotating shaft 3, it is attached so that the spiral winding direction, that is, the direction of inclination is a spiral opposite to the rotating direction of the rotating shaft 3, so that contact and intrusion are prevented. The elastic member 6B is attached so as to scoop upward the powder and granular material
The mounting length of the spiral member 6 is approximately the same as the tip of the small cylindrical portion 1D, and the distance between the outer diameter of the elastic member 6B and the inner diameter of the small cylindrical portion 1D is such that the spiral member 6 is attached to the rotating shaft 3. When the elastic member 6B rotates integrally with the small cylindrical portion 1D, the tip side is rotated and vibrated in a substantially conical shape around the mounting base.
It is installed between the two ends so that it does not come into contact with the Note that the cross-sectional shape of the vertically oriented spiral member 6 is not limited to the rectangular shape shown in this embodiment, but circular, polygonal, and other shapes can provide substantially the same effects.

With the above configuration, finely crushed wood chips are fed into the hopper 1 from the powder inlet 10, and the vertical rotating shaft 3 is rotated by the cyclo reducer to form the stirring blades 2A, 2B and the vertical spiral member 6. By rotating at the same time, the wood shavings powder gradually descends while stirring inside the hopper, and is uniformly mixed into the used waste oil in the fluid flow path 9A from the powder supply port 11. . This is achieved by the rotation of the vertical spiral member 6 attached to the lower end of the rotating shaft 3.
The upper and lower stirring blades 2 are installed near the supply port at the bottom of the hopper (inside the circle), where powder and granules are likely to cause shelving.
Due to the pushing action of A and 2B and the continuous pushing action of the spiral member 6 so that the powder and granules are scooped upward, the powder and granules in contact with the conical portion 1B are constantly moved, and the shelf fishing is carried out. There is no longer any support during the process, and the material is evenly supplied downward. Further, since the vertical spiral member 6 is entirely a spring-like elastic body, it also has the effect of loosening the powder and granules by vibration within the powder and granules. In this way, the device of this example mixes the wood waste powder into the used waste oil in almost equal proportions, adsorbs and removes fine metal particles, dust, water, etc. in the waste oil, and prevents clogging of the ceramic filter in the next process. It is convenient for recycling waste oil into fresh oil.

Note that, although this is different from this example, in the case where the lower end of the vertical rotating shaft 3 does not protrude the stirring blade 2B and ends at the stirring blade (not shown), the vertical spiral member 6 is connected to the stirring blade. By attaching it to the center of rotation of 2B, it is possible to obtain the same effects as in this example using the same principle and operation as in the previous example.

(Effects of the invention) As described above, according to the invention, an elastic member in the form of a coil spring is vertically provided at the lower end of the rotating shaft of the stirring blade facing the supply port or at the center of rotation of the stirring blade. Since the spiral member, which is the main body, is fixed facing the supply port, the spiral member, which is mainly composed of a coiled spring-like elastic member, performs a scooping operation into the powder and a loosening operation due to the vibration operation. This prevents the shelf fishing phenomenon and allows the powder and granular material to be uniformly supplied from the supply port.

[Brief explanation of the drawing]

1 and 2 show an embodiment of this invention, with FIG. 1 being a longitudinal sectional view of the entire device, and FIG. 2 being a side view and a front view of the intermediate spiral member. FIG. 3 shows a longitudinal sectional view of an example of a conventional device. 1... Hopper, 2A, 2B... Stirring blade, 3
... Vertical rotation axis, 6 ... Vertical spiral member, 8 ... Powder, 9A ... Fluid flow path, 11 ...
Powder supply port.

Claims (1)

[Scope of utility model registration request] A hopper for supplying powder and granular material from a lower supply port to the outside through the rotation of a stirring blade, the lower end of the rotating shaft of the stirring blade facing the supply port or the center of rotation of the stirring blade The popper for supplying powder or granular material is configured such that a spiral member mainly composed of an elastic member in the form of a coil spring is fixed vertically facing the supply port.