JPS6033654B2 - Method for producing flat grains for ceramic raw materials - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for producing fan flat grains for ceramic raw materials, which are mainly used as raw materials for tiles for creating spotted patterns.

Conventionally, the above-mentioned spherical grains are usually produced by first rolling a tsuboshi into a thin plate, or if extruded into a thin plate using an extruder, then drying the thin plate, and then molding the thin plate. It is manufactured by crushing and dividing into pieces.

For this reason, the conventional method has the following drawbacks. '1} The process is not only cumbersome and time-consuming, but also extremely difficult to make homogeneous Kohei grains because thin sheets of clay are made, dried, and then crushed to produce Kohei grains. It is. It is extremely difficult to functionally and effectively crush the '2' thin plate shape, and a large amount of waste is produced, which tends to result in high costs.

Therefore, the purpose of this invention was to improve the above-mentioned drawbacks of the previous ones in a very simple and effective manner, and it was successful in this purpose.First, the gist of this invention will be explained as follows. It is.

That is, the method for producing spherical grains for ceramic raw materials according to the present invention includes a step of granulating raw material slurry for ceramics into suitable granules using a spray dryer, and then introducing the granules between two rolling rollers. The method is characterized by comprising the steps of: forming a fan-flat face plate-like molded product; and then introducing the face-plate-like molded product into a container equipped with a pulverizing tool for both pulverization and particle size adjustment. shall be.

In the above, we decided to granulate the raw material mud bran for the ceramic industry into suitable granules using a spray dryer because not only would the granulated granules be homogeneous and lightweight, but also the granules could be This is because there is no need to dry it, and when it is rolled by rollers in the next step, it becomes efficiently and effectively fan flat grains.

Furthermore, after the granulation step equipped with a spray dryer, a rolling roller device was installed, and the step of guiding the granular material between two rolling rollers to form a fan-flat face plate-like molded product was provided. It is much simpler and easier to form a plate-like molded product using this equipment than by any other molding method, and it also makes the subsequent crushing the easiest and most efficient. This is because it is most convenient for producing materials with good properties as raw materials for the ceramic industry, since no compressive force is applied. DESCRIPTION OF THE PREFERRED EMBODIMENTS In order to further clarify the gist of the invention described above and to specifically explain the structure and effects of the invention, examples of the invention will be described in detail below with reference to the drawings.

In the accompanying drawings, reference numeral P designates a primary granulation device, 1 a spray dryer for granulation, 2 granules granulated in the spray dryer, and these granules 2 at the lower end of the spray dryer. It is designed to fall downward from part 3.

The symbol Q is a rolling roller device installed below the granulating device P, and 4 and 4 are its 〇 rollers. The granules 2 are crushed and formed into a flat face plate-like molded product 5 and fall downward.The rollers 4, 4 crush the granules 2 to form a fan-flat face plate-like molded product 5. In order to prevent adhesion during molding, the outer peripheral surface is made of ceramic, and each rotates at an appropriate speed in the direction of the arrow in the figure.

Next, reference numeral R is a knotting device installed below the rolling roller device Q, 6 is a knotting device whose top surface is open and the inner bottom surface is a porous surface 7 for streaks, and 8 is a knotting device. This rotary blade 8 is installed in the kimono 6 and serves to crush coarse particles remaining on the porous surface 7 in addition to the rope cassette.

Furthermore, symbol S is a Kosobair for transporting fan flat grains, which is installed horizontally below the above-mentioned Kannan device R, receives the local grains falling from the joint device R, and travels in the direction of the arrow shown in the figure. It looks like this.

In addition, the reference numeral 9 shown in the drawing represents a granulation pipe, and 10 represents a hopper, both of which are interposed between the granulation device P and the rolling roller device Q, and are connected to the primary granulation device. The granulated material 2 granulated by P falls via the pipe 9 and the hopper 10 above both rollers 4, 4 of the rolling roller device installed below.

Further, reference numerals 11 and 11 in the figure represent scraping tools for scraping, and these scraping tools 11 and 11 are installed at appropriate positions below both the rollers 4 and 4, respectively.

Note that the shapes, structures, etc. of the granulating device, rolling roller device, and knotting device in the above embodiments may be determined as appropriate within the range in which the above-mentioned objectives of the present invention and the above-mentioned effects are achieved. Needless to say, it is a thing.

The method of the present invention realized by the apparatus of the above embodiment can be expected to have the following superior effects compared to the previous method.

Kawa: In the initial granulation process, the granules are granulated by a spray dryer, so the granules become homogeneous and lightweight, and by passing them through the rollers of rolling roller device Q, they can be easily and effectively granulated as they are. It can be made into flat grains. Therefore, the heterogeneity of the fan-flat grains that was seen in previous products has been improved, and the inconvenience of making a thin plate with tsubo soil and crushing it to make fan-flat grains, as in the past, has been eliminated. effectively improved. ■Furthermore, a rolling roller device was installed next to the granulation process to guide the granular material between two rolling rollers and form it into a flat plate-shaped product. It is easily formed into a face plate-like molded product simply by passing between rollers. This molding method is much simpler and easier than any other molding method, and since it is molded into a face plate shape, subsequent pulverization can be carried out most easily and efficiently. In fact, the face plate-shaped molded product according to the present invention is roughly crushed simply by passing through the rolling roller and falling, and the efficiency of the subsequent crushing and particle size adjustment process is greatly improved. Furthermore, in the case of a face plate-shaped molded product obtained by passing between these rolling rollers, more pressing force than necessary is applied to the molded product, compared to other cases where, for example, a block-shaped molded product of the size of a pebble is formed. Since it does not add anything, it can be used as a raw material for ceramics with good properties.

In addition, according to the method of this invention, not only does the conventional drying process and crushing process become unnecessary, but each process can be performed continuously as a series of automatic processes, which improves productivity. Not only is this improved, but the manufacturing cost can be significantly lower than before.

0 As is clear from the above explanation, according to the present invention, the above-mentioned drawbacks that occurred with respect to the previous ones can be improved very simply and effectively, so it is believed that the practical benefits brought about by this invention are large. I have to say it.

[Brief explanation of drawings]

FIG. 1 is a longitudinal cross-sectional view showing a main part of an embodiment of the device of the present invention, and FIG. 2 is a partial perspective view of a face plate-shaped molded product. P... Granulation device, Q... Rolling roller device, R... Tuna device, S... Conveyor,
DESCRIPTION OF SYMBOLS 1... Spray dryer, 2... Granular material, 4... Roller, 5... Face plate-shaped molded product, 6... Sparrow, 7. ...Porous surface, 8...
...Rotating blade. Figure 1 Figure 2

Claims (1)

[Claims] 1 A step of granulating raw material slurry for ceramics into suitable granules using a spray dryer, then a step of guiding the granules between two rolling rollers to form a flat face plate-shaped molded product, and then a step of forming the above-mentioned face plate 1. A method for producing flat grains for use as a raw material for ceramics, comprising the steps of introducing a shaped molded product into a sieving container equipped with a stirring tool that also serves as a pulverizer and adjusts the particle size.