JPS5931622Y2 - Table feeder mine fall prevention device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an ore fall prevention device for a table feeder.

Table feeders are widely used as devices for quantitatively cutting out powder and granular materials such as sintering raw materials.

As illustrated in FIG. 1, this table feeder is provided with a disc or cutting table 2 that is separated from the hopper 6 and rotates at a low speed below the hopper 6 that accommodates the powder and granular material 7. Outer edge 2 of cutting table 2
A conveying device 9 such as a belt conveyor is placed directly under A.
is provided.

There is one outlet 11 for powder and granules at the lower end of the hopper 6.
A hood 10 with a lower end slightly raised from the upper surface of the cutting table 2 is fixedly installed, and a hood 10 with a lower end slightly raised from the upper surface of the cutting table 2 is attached to the side of the outlet 11 from the upper surface of the cutting table 2 as shown in FIG.

A scraper plate 8 is fixedly provided and extends toward the conveying device 9 side with a gap shown in FIG.

The table feeder 1 cuts out the powder by rotating the cutting table 2 in the direction of the arrow 12.

That is, as the cutting table 2 rotates, the powder T coming out of the outlet 11 collides with the scraping plate 8 and is guided to fall from the outer periphery of the cutting table 2 and onto the conveying device 9 to be conveyed to the next process. The cutting amount is adjusted by changing the rotational speed of the cutting table 20 and the opening area of the outlet 11, thereby performing quantitative cutting.

An arrow 13 indicates the direction in which the powder and granular material is transported by the transport device 9.

However, when the table feeder 1 continues to cut out the powder and granular material, the third part is left on the upper surface of the cutting table 2 except for the part scraped by the scraper plate 8 and falling onto the conveying device 9.
The remaining powder and granules scraped off by the scraper plate 8 to the thickness shown in Figure t1 are loaded and continue to rotate while being refreshed every rotation, so the powder particles spill from the outer periphery of the cutting table 2. Even if the amount is small, over a long period of time troubles will occur due to falling ore below the table feeder.

For example, there are problems such as powder particles getting into the chain box that is the drive device of the table feeder, causing wear and damage to the chain, scattering and polluting the indoor air, and powder particles accumulating on the floor. Although they are collected regularly and reused, in addition to the problem of high processing costs, when reusing various types of powder and granules are cut out using multiple table feeders, powder and granules with different properties are generated. There is a problem in that if the powder is a raw material for sintering, it can only be used as miscellaneous ore because it mixes with the grain.

The present invention has been made to advantageously solve these problems.

The present invention will be explained below based on the drawings.

FIG. 4 is a perspective view illustrating the present invention, and FIG. 5 is a sectional view of essential parts of the present invention.

As shown in FIGS. 4 and 5, the present invention includes a falling ore trap 4 consisting of a circular groove with a mountain-shaped cross section to accommodate powder and granules falling from the outer peripheral edge of the cutting table 2. It is fixedly installed below the cutting table 2, and the falling ore receiver 4 is provided with a notch 3 at a portion located above the conveying device 9.
A scraper 5 is fixed to the back surface of the cutting table 2 and rotates as the cutting table 2 rotates so as to pass through a mountain-shaped ore trap 4.

The notch 3 is located at a position where the powder and granules are guided by the scraping plate 8 and flows down, so it is used to ensure a flow path for the powder and granules to flow down, and also to prevent the powder that has fallen into the falling ore catcher 4. Since it is provided for discharging particulate matter, it is necessary to provide it directly above the conveying device 9 such as a belt conveyor, and the notch 3 between the cutout table 2 accommodates the particulate matter that spills from the outer peripheral edge 2A of the cutting table 2. However, since this part is on the transport device 9, even if the ore falls, it will be transported as it is, so there is no problem.

The scraper 5 according to the present invention may have a plate shape with an area slightly larger than the internal cross-sectional area of the ore catch 4,
As the cutting table 2 rotates and passes through the inside of the ore catch 4, the scraper 5 scrapes off the particulate matter that is about to fall and accumulate in the ore catch 4 and discharges it from the notch 3. The powder and granules cut out by the scraper plate 8 can be transported to the next step by the transport device 9.

Note that the reason why a plurality of scrapers according to the present invention are fixed to each of the eight ribs fixed radially on the bottom surface of the cutting table around the rotating shaft is to make the rotation of the cutting table smooth. It is valid.

As mentioned above, the present invention has a simple structure, and the powder and granules that have fallen from the cutting feeder can be automatically collected and used, so it has the advantage of solving the conventional problems caused by falling powder and granules. is obtained.

[Brief explanation of the drawing]

FIG. 1 is a perspective view illustrating a table feeder, FIG. 2 is a sectional view illustrating cutting out of powder and granular materials by the table feeder, FIG. 3 is a sectional view illustrating powder and granular materials remaining on the cutting table, and FIG. FIG. 4 is a perspective view illustrating the present invention, and FIG. 5 is a sectional view illustrating the main parts of the present invention. 1 is a table feeder, 2 is a cutting table, 2A is an outer periphery, 3 is a notch, 4 is a falling ore catcher, 5 is a scraper, 6 is a hopper, 7 is a powder material, 8 is a scraper, 9 is a conveyance device , 10 is the hood, 11 is the exit.

Claims (1)

[Scope of utility model registration request] In the table feeder 1, a falling ore receiver 4 consisting of a circular groove with a white cross section is fixedly installed below the cutting table 2 to receive the powder falling from the outer peripheral edge of the cutting table 2. The ore receiver 4 is provided with a notch 3 at a portion located above the conveyor 9, and a scraper 5 is provided on the back surface of the cutting table 2, which passes through the ore receiver 4 by rotation of the cutting table 2. A table feeder mine fall prevention device characterized by being permanently installed.