JPS644749Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a feeding machine for lifting powder and granular material used when lifting accumulated powder and granular material.

[Background technology]

As a powder and granule material lifting device, a rotor-type feeder is disposed directly below a finned conveyor extending in the vertical direction, and the powder and granular material taken between the blades of the rotor is supplied to the finned conveyor. It is known that things are transported.

In addition, in order to reduce the power consumption of the rotor of the above-mentioned device, attempts have been made to provide the rotor blades so as to extend in the longitudinal direction beyond the blade support so that the powder and granules are taken in from the inside of the blades. There is.
This type of apparatus is illustrated in FIGS. 1 to 3.

In the figure, powder and granular materials 12 are stacked in bulk in a ship hold 10. The lifting device 14 has a finned belt 22 installed between rotating drums 16 and 18 arranged above and below, and drives an electric motor 20 to rotate the upper rotating drum and rotate the finned belt counterclockwise. . A rotor 3 is located directly below this conveyor with fins.
0 is arranged and rotates counterclockwise. The fin conveyor and the rotor are covered by a casing 24, which has a powder discharge port 26 at the top and a side opening 46 at the bottom in the axial direction of the rotor for taking in the powder. have

The rotor 30 has a relatively narrow circular support 32 attached to the rotating shaft 36, and the support 32 has the following features:
The blade 34 extends in the longitudinal direction beyond the width of the support.
It consists of multiple erected. The rotating shaft 36 is supported from the casing 24 or the like via a suitable support member 38, and is rotated by a suitable transmission means 40.

When the lifting device 14 suspended by a crane or the like is thrust into the layer of powder and granules 12, the powder passes through the side opening 46 at the bottom of the casing and flows from the inside of the rotor blades 34 to between the blades. Inflow. The powder between the blades is ejected upward by the rotational centrifugal force of the rotor and is received by the finned belt. The powder and granular material accommodated in the finned belt is transported and discharged from the discharge port 26.

The lifting operation is performed by moving the lifting device up and down, left and right, and front and back as necessary. By the way, in this lifting operation, if the lifting device is moved left and right from the state shown in Figure 3 (also when the lifting device is moved back and forth perpendicular to the page from the state shown in Figures 1 and 2) Similarly), the layer of powder particles is shifted to one side. Therefore, the granular material is taken into the casing only from one side of the side openings 46 provided on the left and right sides, and the internal movement of this granular material is prevented by the support body 32. For this reason, it is difficult to fill the entire length of the blades with powder and granules, resulting in a decrease in lifting efficiency, and there are also disadvantages in that uneven loads act on the rotor and the finned belt.

[Purpose of invention]

The purpose of the present invention is to improve the drawbacks of the above-mentioned prior art and to provide a feeder for lifting powder or granular material that can minimize the adverse effects even if the powder or granular material is supplied unevenly. be.

[Summary of the idea]

In order to achieve the above object, the feeder according to the present invention has a rotor support body composed of a plurality of support arms, which has approximately the same width as the support arms,
A feature is that a blade is attached to the outer periphery of the intermediate ring that connects the tips of the support arms in a longitudinal direction that extends beyond the width of the ring.

[Example of idea]

Embodiments of the present invention will be described based on the drawings. Fourth
An embodiment of the present invention is shown in FIG. In the figure, a rotor 50 includes a rotating shaft 52 and a rotating shaft 52.
2, an intermediate ring 58 connecting the tips of the support arms, and a plurality of blades 60 erected on the intermediate ring 58. has been done. The width of the support arm 54 is sufficiently narrower than the width of the case 62 surrounding the rotor, and the width of the intermediate ring 58 is also made narrower to the same extent as the width of the support arm 54. The blade 60 is provided to extend in the longitudinal direction beyond the width of the intermediate ring, and its length is slightly shorter than the inner width of the case 62. The other side openings 46A, 46B, the finned belt 22, the casing 24, etc. have the same configuration and function as those described in the background art section.

When the apparatus of this embodiment is moved in the direction of arrow A in FIG. It will be taken in. However, the granular material that has flowed into the case 62 can pass through the gap between the support arms 54 of the support body 56 and reach the left end of the blade located below. For this reason, it is possible to prevent the lifting efficiency from significantly decreasing and excessive unbalanced loads from acting on the rotor and the V-belt with fins.

Note that the present invention is not limited to the above-described embodiment; for example, as shown in FIG.
By attaching this, the movement of the powder in the case 62 can be further promoted. Further, by attaching a ribbon screw 66 to the inner periphery of the blade 60 as shown in FIG. 7, the inflow effect of powder and granular material can be similarly improved.

[Effect of idea]

As described above, the powder and granular material lifting feeder according to the present invention can take in the powder and granular material over almost the entire length of the rotor blades even when the powder and granular material is supplied unevenly. Therefore, even in the case of offset feeding as described above, it is possible to prevent a significant decrease in lifting efficiency. Further, since no excessive unbalanced load is generated on the rotor or the finned belt, the life span and mechanical efficiency of not only the present feeder but also the entire lifting device can be improved.

[Brief explanation of the drawing]

Fig. 1 is a side cross-sectional view showing the schematic configuration of a conventional granular material lifting device, Fig. 2 is a side view showing the feeder portion of Fig. 1, and Fig. 3 is the same as that shown in Fig. 2.
4 is a side sectional view showing an embodiment of the feeder according to the present invention; FIG. 5 is a front view thereof; FIG. 6 is a front view showing another embodiment of the present invention;
FIG. 7 is a front view showing still another embodiment of the present invention. 12... Powder, 22... Belt with fins, 50
... Rotor, 52 ... Rotating shaft, 54 ... Support arm, 56 ... Support body, 58 ... Intermediate ring, 60
...Feather, 62...Case, 64...Screw, 66...Ribbon Screw.

Claims (1)

[Scope of utility model registration request] It is equipped with a rotor and a case which has a side opening in the axial direction of the rotor and is open at the top, and the powder and granules taken in from the side opening of the case are discharged upward from the case by centrifugal force of rotation of the rotor. In the feeding machine for lifting powder and granular material, the rotor is
A rotation shaft, a plurality of support arms attached radially from the rotation shaft, an intermediate ring having approximately the same width as the support arms and connecting the tips of the support arms, and a ring width around the outer periphery of the intermediate ring. 1. A feeder for lifting powder or granular material, characterized in that it is comprised of a plurality of blades extending in the longitudinal direction.