KR100547028B1 - Method for manufacturing bricks of traditional black and gray color utilizing oxzdation-reduction reacting oxides - Google Patents

Abstract

The present invention provides a method for producing black brick and sidewalk blocks using metal oxides and colored oxides, which can mass-produce black and red-colored traditional stone products at a much higher production efficiency and lower price than conventional two-coating firing methods. It is about.

The present invention provides 60 to 70 weight percent clay, 20 to 30 weight percent masa, 3 to 10 weight percent iron oxide, 3 to 10 weight percent manganese dioxide, 1-3 weight percent chromium oxide and other necessary Preparing a raw material mixed with the components; Manufacturing a molded product according to a product shape to be manufactured using the raw material; And a step of firing the moldings in the trolley 20 to pass through the tunnel-type continuous firing kiln 10 having the preheating zone 11, the firing zone 12, and the cooling zone 13. Provided are a method for producing black bricks and sidewalk blocks using oxides and colored oxides.

Description

METHODS FOR MANUFACTURING BRICKS OF TRADITIONAL BLACK AND GRAY COLOR UTILIZING OXZDATION-REDUCTION REACTING OXIDES}

1 is a schematic diagram of a conventional stone manufacturing facility according to a two-piece plastic firing method,

2 is a schematic view of a stone manufacturing facility according to the method of the present invention,

Figure 3 is a block diagram of a process for producing a projection by a conventional two-coating plastic method,

4 is a block diagram of a process for producing a stone according to the method of the present invention;

Explanation of symbols on the main parts of the drawings

1: iron kiln 2: door

3: stack 10: tunnel type continuous firing kiln

11: preheating table 12: firing table

13: cooling stand 20: bogie

The present invention relates to a brick and sidewalk block manufacturing method, in particular black metal using a metal oxide and colored oxide, which has been studied to easily produce a brick and sidewalk block of a black system with high productivity using metal oxides and colored oxides. The present invention relates to a brick and a sidewalk block manufacturing method.

In the construction and landscaping of traditional houses such as hanoks, temples, and palaces, so-called masonry are often used as black bricks and sidewalk blocks. These masonry provide a calm and dignified decoration and atmosphere unique to the black system. It is widely used in architectural sites where such decoration and atmosphere are required.

Currently, general clay bricks and sidewalk blocks can be manufactured and produced in a continuous mass through semi-automated or automated production facilities, but the above-described projections related to the present invention are manufactured by relying on traditional methods of baking (baking). As a result, productivity is remarkably inferior, and production costs are high, thus facing a situation that is gradually being specified.

That is, in the conventional method for manufacturing a stone, as shown in Figure 1 stacked moldings in a square iron kiln (1) capable of baking about 10,000 pieces of stone at a time, and closed the door (2) of the kiln closed It is a method to be fired at the time of firing and then to be cooled and taken out. It is a method that can only produce about one kiln a week. When the chimney (3) is blocked and the fire is kept while maintaining the temperature, the carbon component of the fuel is carburized in the molding to be fired into a molding having black to red color. This firing method is referred to as a so-called two-sided firing method, all traditional rice cake siru or black to red earthenware was produced by this method.

The present invention can be effectively solved in view of the problem that the existing production process for the existing stone, which relies on the conventional two-side plasticity method as described above has a problem that the production cost and production is decreasing due to high production cost and low productivity. It was researched to provide a new manufacturing method, and it is intended to be able to manufacture and supply black bricks and sidewalk blocks of tradition and style with high productivity at low cost.

Hereinafter, with reference to the accompanying drawings, the present invention for achieving the above object will be described in detail.

The conventional method of manufacturing black brick and sidewalk block by the two-corrosion firing method is to maintain the entire inside of the iron kiln for the molding firing in the same combustion atmosphere, and to carry out carburizing firing for a long time without raising the temperature above. Due to manufacturing difficulties, there is a disadvantage in that the productivity is very low. The present invention avoids this conventional disadvantage, and the molded product is fired at a high yield in continuous mass through a tunnel type continuous firing kiln as in the manufacturing process of ordinary clay brick. The present invention aims to provide a manufacturing method capable of producing a satisfactory color and texture of the black system traditionally intended by the present invention on the surface of the fired product.

In order to achieve this, the present invention provides 60 to 70% by weight of clay, 20 to 30% by weight of fine sand or martha, 3 to 10% by weight of iron oxide as metal oxide, and 3 to 10 as colored oxide. Preparing a raw material mixed with manganese dioxide by weight and 1-3% by weight of chromium oxide and other necessary ingredients; Manufacturing a molded article according to a product shape to be manufactured using the raw material such as a brick or a sidewalk block; The moldings are loaded on a trolley and passed through a conventional tunnel-type continuous firing kiln equipped with a preheating zone, a baking zone, and a cooling zone to continuously preheat, fire, cool, and take out the metal oxides and colored oxides. It provides a black brick and sidewalk block manufacturing method.

The metal oxide made of iron oxide and the colored oxide made of manganese dioxide and chromium oxide in the composition material of the molding cause oxidation and reduction reaction when the molding is fired while passing through the firing zone of the tunnel type continuous firing kiln. It is a component that has the color of the intended black to red color system, which is the same principle that when the iron is burned at a high temperature of more than 1000 ℃ the surface color is represented by the color of the recolor or silver system similar to the color of the projection.

Such a method of the present invention can produce a product of more uniform color than the conventional manufacturing method based on the above-described two-corrosive baking method, and can also produce a product having excellent quality in terms of absorption rate, compressive strength, The molded product is not carburized for a long time in a state where it is fixedly placed in an iron kiln as in the prior art, and is loaded on the trolley 20 as shown in FIG. 2, and the preheating stand 11, the firing stand 12, the cooling stand 13, and the like. Since the sintering is continuously fired through the tunnel type continuous firing kiln 10 provided, the production efficiency is so high that it is incomparable with the past, and there is also an advantage in that the production cost of the product can be significantly lowered. .

In other words, the method of the present invention differs from the conventional clay brick manufacturing process in that the metal oxide and the colored oxide are mixed in a ratio suitable for clay to prepare a product raw material. The remaining processes for continuously preheating, firing, and cooling the product through the firing kiln 10 to produce a product are the same as those of the above-described conventional clay brick manufacturing process. That's a few times the way.

Figure 3 is a block diagram showing a conventional process for producing a projection according to a two-side corrosion firing method, Figure 4 is a block diagram showing a process for producing a projection according to the method of the present invention, the production of a projection by the existing technology and the present invention The following table compares the differences in stone manufacturing by the technology of Table 1.

<Table 1>

division Cow castle load Kiln shape Raw materials output Way time Temperature Traditional way Two-way plasticity 72-96 hours 1000 ~ 1100 ℃ Inside the kiln Square iron kiln Clay and martha or bodhisattva Small quantity order production Method of the invention Oxygen reduction 18-26 hours 1170 ~ 1230 ℃ Balance Tunnel type continuous firing kiln Clay and martha or bovine soil, metal oxides, colored oxides Mass continuous production

Therefore, the present invention provides a new useful effect that can be mass-produced such a traditional system of the black system through a manufacturing method as described above at a significantly lower price and higher production efficiency than before.

Claims (1)

Mixed with 60 to 70 wt% clay, 20 to 30 wt% masa, 3 to 10 wt% iron oxide, 3 to 10 wt% manganese dioxide, 1-3 wt% chromium oxide and other necessary ingredients Preparing a prepared raw material; Manufacturing a molded product according to a product shape to be manufactured using the raw material; And a step of firing the moldings in the trolley 20 to pass through the tunnel-type continuous firing kiln 10 having the preheating zone 11, the firing zone 12, and the cooling zone 13. Method for producing black bricks and sidewalk blocks using oxides and colored oxides.

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