JPS586839A - Powder discharge device - Google Patents

Abstract

PURPOSE:To prevent the weight of powders from being directly applied to rotary blades by shearing the powders with an upper rotary blade, dropping them on a bottom plate, and discharging them with lower rotary blades. CONSTITUTION:An upper rotary blade 12 and lower rotary blades 6 are driven to rotate by a motor 5 in the same direction. Since the rotary blade 12 is shaped in a flat plate, powders pressed in a storage tank 1 are sheared, and the powders at the lower side of the blade 12 are cut off their connection with other powders above and are freely dropped on a bottom 2 through drop ports 10. The powders thus dropped are pressed toward the outer peripheral direction by means of the lower rotary blades 6, and are discharged through outlet ports 3. The powders dropped on the bottoms 2 contain much air and their quantity is small, therefore, the loads applied to the rotary blades 6 are reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION (Object of the Invention) The present invention relates to a powder discharge device provided at the bottom of a storage tank or the like that accommodates powder or granules.

The purpose of the present invention is to prevent the weight of the powder from directly acting on the rotating blades, and to drive the rotating blades by promoting the flow of the powder (1).
The objective is to reduce the capacity of the wJ machine and provide an inexpensive device.

(Prior art) In conventional powder and granule discharge devices, the weight of the powder and granules in the storage tank acts in contact with the rotating blades for sending the powder and granules to the discharge port, resulting in a large load on the rotating blades. It was something like that. Therefore, a large-capacity electric motor is required to rotate the rotary blades, which not only increases the cost of the device but also increases operating costs.

(Structure of the Invention) The present invention has linearly formed rotating blades in two stages, upper and lower, in a storage tank, and a bulkhead plate having a droplet for powder and granules is provided below the rotating blades, and the powder in the storage tank is The granules are sheared by the upper rotating blades and allowed to fall naturally from the drop opening onto the bottom plate, and then the powder particles are sent to the discharge port by the lower rotating blades. explain.

In Figures 1 to 4, one or more discharges 03 are provided on the outer periphery of the bottom 2 of the storage tank 1, and a rotating shaft 4 is provided in the center.
is inserted and linked to the IIl motive 5.

A plurality of rotary blades 6 which are curved in an arc shape and have bent tips radiate from the rotary shaft 4, and beams 7 are radially arranged upward while keeping a distance from the 0-rotation blades 6 protruding close to the bottom 2. The ends of the beams 7 are fixed to the inner periphery of the storage tank 1. Beam 7
A plurality of concave notches 8 are provided in advance at approximately equal intervals in the outer circumferential direction on the upper surface, and a ring body 9 is inserted and fixed into each notch 8, and the falling a10 is prevented by @7 and the ring body 9. Bulkhead panel 1
form 1. The tip of the n-shaped rotary shaft 4 is made to protrude upward from the spacer M board 11, and a linear rotary blade 12 is attached to the tip of the rotary shaft 4.
The 0-rotation blade 12 that fixes the 0-rotation blade 12 may have a flat plate shape and sandwich the rotating shaft 4 and protrude from both sides, but it may also protrude from only one side.
The cross-sectional shape of the rotating blade 12 is preferably rectangular, plate-like, flat elliptical, or the like.

(3) (Operation of the invention) The powder and granules put into the storage tank 1 are pressed by their own weight and cannot easily fall to the bottom 2 through the drop opening 10, so the electric motor 5 is driven. When the zero-rotation vane 2 that rotates the upper rotary vane 12 and the lower rotary vane 6 in the same direction rotates, these 12 rotary vanes are formed into a flat plate shape and are compressed in the storage tank l. It acts to cut down the powder and granules. Therefore, rotating blade 1
2, the powder and granules on the lower side of the rotating blade 12 are disconnected from the powder and granules on the upper side of the rotating blade 12, and the falling port 10 or 61! Naturally falls onto i2. The granular material that has naturally fallen onto the bottom 2 is pushed out toward the outer circumference by the rotating blades 6 and is discharged from the discharge port 3. The powder and granules that naturally fall onto the bottom 2 are not compressed like the powder and granules in the upper part of the storage tank 1, and contain a large amount of air, and the weight of the powder and granules is smaller than that of the rotating blade; ...6)%, the load acting on the rotating blade 6 becomes extremely small. When the powder and granules start falling naturally from the drop opening 10, the powder and granules in the storage tank 1 gradually flow downward due to the force that causes the rotating blades 12 to shear the powder and granules. resistance decreases.

The partition plate 11 in the above embodiment was composed of the beam 7 and the ring body 9, but it is now a disk-shaped partition plate fixed to the inner circumference of the storage tank l, and a large number of through holes are formed in the partition iia. Of course, it can also be used as a droplet for powder and granular material by drilling a hole.

It is also possible to rotate the upper rotating blade 12 and the lower rotating blade 6 in opposite directions.

(Effects of the Invention) The present invention has a structure in which rotating blades that shear the powder and granular material in the storage tank to make it easier to flow, and rotating blades that discharge the powder and granular material from the outlet are provided above and below. (force), the load acting on the rotating blades is significantly reduced. Therefore, the sIl! of the drive!
1III! ! The amount can be reduced by 41%, reducing operating costs (5), and since the price of the electric motor is lower, an inexpensive discharge device can be provided.

[Brief explanation of the drawing]

Fig. 1 is a front vertical sectional view of an embodiment of the present invention, Fig. 2 is a plan view of the rotating blade above μ, ms is a sectional view taken along the line X-X in Fig. 1, and Fig. 114 is a cross-sectional view of Fig. 1I11. It is a sectional view taken along the line. (Explanation of symbols of main parts) 1...Storage tank 2...Bottom 3...Discharge port 6...Rotating blade! 0...Drop opening
11... Bulkhead panel (6) Figure 1 Figure 2 Figure 3 Figure 4

Claims (1)

[Claims] A discharge port is provided at the bottom of the storage tank, and a rotary blade for discharging and stirring the powder and granules from the discharge port hangs over the 1M section of the storage tank.
It is built in such a way that it can rotate freely around the shaft, and serves as an opening for powder and granular material to fall! is internally fixed above the rotating blade, and a linear rotating blade is internally installed above the partition plate so as to be freely rotatable around a vertical axis.