JPS6039609B2 - Continuous transfer device for powder and granular materials - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for continuously transporting powder and granular material for continuously discharging the powder and granular material in a container to the outside of the system or supplying the powder and granular material to another system.

This type of device is disclosed in Japanese Patent No. 318466 (Japanese Patent Publication No. 40
As shown in No. 126096), the bulk density is reduced by vibration of the powder and granular material in the gap provided between the inner cylinder and the bottom of the vibrating tank and the surrounding area by using vibration using an electromagnet. This creates a series of fluidized powder tanks with different powder pressures inside the inner cylinder and in the vibrating tank, and the powder automatically overflows out of the tank due to the pressure difference. There are continuous body evacuation devices, and the present invention relates to improvements in this technology. That is, in the above-mentioned invention, if the desired continuous transfer is effective, but the transfer amount is further increased, or stable fixed-quantity transfer with less variation is required, the present invention satisfactorily satisfies those demands. It is difficult. In other words, in conventional equipment, the powder pressure of the powder in the vibrating tank is directly applied to the vibrating plate that supports and vibrates the powder layer, so depending on the powder pressure, the amplitude may fluctuate or decrease. This may cause variations in the quantitative transfer or a decrease in the amount transferred. Therefore, in order to ensure the desired transfer amount, conventionally this has been dealt with simply by increasing the voltage to the vibrator. However, if the vibration force of the vibration device is limited, there are problems such as a larger vibration device must be used to compensate for this, the transfer device becomes larger, and the stability of the transfer is not improved. In addition, because conventional vibration devices use a single vibration system, unnecessary vibrations are transmitted to the main body.
The main unit had to be reinforced, and transport and discharge were not smooth. In view of these points, the present invention improves the transfer device, significantly increases the transfer amount, and enables stable fixed-quantity transfer. Next, the configuration of the present invention will be explained using examples.

Reference numeral 1 denotes the outer body of the present device, which is connected by a continuous pipe 2 to a lower particulate matter storage section such as a hopper, back filter, or cyclocollector (not shown).

Reference numeral 5 denotes a supply port for introducing the transferred powder and granular material in the powder and granular material storage section into the outer crab 1, and 6 indicates a discharge port for the transferred powder and granular material.

Reference numeral 3 denotes a fixed base, and a support base 13 for supporting and fixing the main vibration device 10 and the sub-vibration plate 11 is disposed thereon, and the fixed base 3 is fixed to the outer weight 1 by a support punch 4.

The movable piece 10a of the main vibration device 10 is fixed to the main vibration plate 8, and the vibration plate 8 is attached to the fixed base via an elastic support piece 12a such as a spring so that the main vibration device 10 and the movable piece 10a have an appropriate gap. It is supported by 3. Further, a movable piece 11a of a sub-vibration device 11 is fixed to the sub-vibration plate 9, and the movable piece 11a is fixed to the sub-vibration plate 9.
a and the auxiliary vibration device 11 are supported on a support stand 13 via an elastic support piece 12b such as a spring so as to have an appropriate gap.
17a and 17b are dustproof membranes made of a visible material such as rubber or cloth. The dust-proof film 17b is iron-bonded at its upper end to the sub-vibration disc 9 and at its lower end to the inner circumference of the main diaphragm 8, thereby hermetically protecting the main vibration device 10 and the sub-vibration device 11, respectively.

Reference numeral 7 denotes a supply inner cylinder, and its lower end is iron-coupled to the main vibrating plate 8 so that the gap between it and the upper surface can be adjusted at the outer circumference of the continuous pipe 2.

Reference numerals 14a and 14b denote auxiliary vibration discs, which have an appropriate interval on the upper surface of the main vibration disc 8, have an opening in the center facing the supply inner cylinder 7, and have a mounting hole 15 on the main vibration disc 8. They are fixed by nuts 16 so that their vertical intervals can be adjusted. 19
1 is a power supply terminal, and 18 is a vibration regulator for vibrating the main vibration device 10 and the sub-vibration device 11 via a power cord 20, or for adjusting the vibration.

As shown in FIGS. 2a, b, and c, the configuration of the vibration regulator 18 includes a voltage regulator 21 for regulating the AC power input from the power supply terminal 19. It consists of a half-wave rectifier element 22 for half-wave rectification of current. In this embodiment, as shown in FIG. 2a, both the main vibration device 10 and the sub-vibration device 11 are operated by the same voltage regulator 21, but as shown in FIG. It is also possible to connect a voltage regulator 21 and vibrate each separately as desired, and it is possible to change the vibration according to the powder supply conditions. Furthermore, as shown in FIG. 2c, the vibration regulator 18 is configured so that the vertical components of the vibrations by the main vibrating device 10 and the sub-vibrating device 11 are in opposite phases to each other. to effectively utilize the input energy to the vibration devices 10 and 11, and furthermore, the main vibration device 10 and the sub vibration device 11
This structure is configured to reduce or cancel out unnecessary vibration transmission to the fixed base 3 and the external reach 1 due to the vibration. In addition, the elastic support pieces 12a and 12b are installed with a constant inclination in a certain direction, so that when vibrating, the main vibration plate 8,
In addition to simply vertically vibrating the sub-vibration disk 9 and the sub-vibration disks 14a, 14b, these vibration disks 8, 9, 14a,
The outer circumferential end of 14b is made to vibrate in a fixed direction slightly inclined upward and downward. Note that the inclination directions in which the main vibration plate 8, the auxiliary vibration plates 14a and 14b, and the sub-vibration plate 9 vibrate may be the same or opposite. Further, in this embodiment, two auxiliary vibration discs 14a, 14b are used, but in order to increase the transfer amount and improve the quantitative nature of the transfer, the auxiliary vibration discs 14a, 14b...・Keep a reasonable distance between
Alternatively, it is effective to increase the number of auxiliary vibration discs 14a, 14b, . . . . In this embodiment, the vibration device is an electromagnetic type, but other known vibration devices such as one using compressed air or one using mechanical vibration can be applied. In the above embodiment, when the powder and granular material to be transferred is stored in the powder and granular material storage section, unless the main vibrating disc 8 or the sub-vibrating disc 9 is vibrated, the powder and granular material to be transported becomes a powder as shown in FIG. 3a. The granules form an angle of repose and stand still, and the inclined surface due to the angle of repose does not collapse or flow out any further.

Next, the main vibration regulator 18 energizes the main vibration device 10 and the auxiliary vibration device 11, and the main vibration disk 8 and the auxiliary vibration disk 14a
, 14b and the auxiliary vibration disc 9, the inclined surfaces of the powder particles to be transported on the main vibration disc 8 and the auxiliary vibration discs 14a, 14b collapse and become continuous, as shown in FIG. 3b. The powder to be transported is fluidized by the vibration, flows out and falls around the main vibrating disk 8 and the auxiliary vibrating disks 14a and 14b, and is discharged from the device through the discharge port 6. 8 and the auxiliary vibration plates 14a, 14b, the powder particles to be transported do not accumulate at all and smoothly move to the outer periphery one after another, and simultaneously flow out and fall from each circumferential part, so that the vibration effect is suppressed. In a certain case, the state of transfer and outflow is always constant, and here, the sub-vibration disk 9 supports the pressure due to the load of the powder and granules applied in the vertical direction of the powder and granules to be transferred in the powder and crab storage section, The powder and granular material to be transferred is smoothly transferred onto the surfaces of the main vibrating disk 8 and the auxiliary vibrating disks 14a and 14b, but the powder and granular material pressure is not directly applied to both of the vibrating disks 8, 14a and 14b. Both vibration plates 8, 14a,
14b acts only on transfer, thereby reducing the influence of the powder pressure in the storage section on vibration. Further, when the vibrations of the main vibrating device 10 and the sub-vibrating device 11 are made to have opposite phases to each other by the vibration adjuster 18, and furthermore, the positive and negative half waves are used, the main vibrating device 11 is caused to vibrate by itself. The main vibrating disk 8 vibrated by the sub-vibrating device 11 and the sub-vibrating disk 9 vibrating by the sub-vibrating device 11 generate vertical vibrations with mutually opposite phases.
Therefore, the repulsive forces of the respective vibrations associated with this interfere with each other, causing these vibration devices 10 and 11, the vibration plate 8,
To reduce or offset unnecessary vibration transmission to the fixing base 3 supporting and fixing the 9 and the main unit, and to facilitate smooth transfer and discharge of powder and granular materials. As described in detail above, according to the present invention, the sub-vibrating disk 9 that supports the pressure due to the vertical load of the powder and the main vibrating disk 8 that transfers and discharges the powder and granular material are separately and separately vibrated. Since it is vibrated by the device, it solves the problem of a decrease in the transfer amount and a decrease in quantitative performance caused by the pressure caused by the load of the powder, and there is no need to increase the size of the vibrator and the device body to ensure the transfer amount. 4. The device is lightweight, ensures the desired amount of transfer, improves quantitative performance, and is extremely efficient. Also, by adjusting the vibration regulator 18, the main vibration plate 8 and the sub-vibration plate 9 can be adjusted. When vibrating in opposite phases to each other, unnecessary vibrations to the fixed base 3 and the main body of the device can be reduced or canceled out, and failures of this type of device can be significantly improved. The present invention is industrially useful, as transfer and discharge can be carried out extremely smoothly through the effective use of.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional view of main parts showing an embodiment of the present invention, and Fig. 2 is a
, b, and c are wiring diagrams showing the structure of the vibration adjuster 18, and FIGS. 3a and 3b are explanatory diagrams showing the flow state of the powder and granular material in this embodiment. In the figure, 7...Inner cylinder for supply, 8...Main vibration plate, 9...Sub-vibration plate 10...Main vibration device, 11...・Sub-vibration plate vibration device, 12a, 1
2b... is an elastic support piece. Figure 3 Figure 1 Figure 2

Claims (1)

[Claims] 1. A circular main vibrating disk 8 is provided at an appropriate interval below the supply inner cylinder 7 through which the powder and granular material to be transported flows down, and a plurality of elastic supports are installed at a constant angle of inclination in one direction. Piece 1
2a and the main vibrating device 10, the powder and granular material placed on the main vibrating disk 8 rotates on its upper surface and overflows and falls from the outer periphery, and separately from the main vibrating disk 8. An umbrella-shaped sub-vibration plate 9 is mounted above the center of the main vibrating plate 8, facing the supply inner cylinder 7, with a plurality of elastic support pieces 12b and a sub-vibrating device 11.
In addition, the main diaphragm 8 is provided with a disk-shaped auxiliary diaphragm 14 having an opening larger than the auxiliary diaphragm 9 above the auxiliary diaphragm 9 at a position above the outer periphery of the auxiliary diaphragm 9. A continuous transfer device for powder and granular material, characterized in that it is provided with one or more of the following.