KR20040025713A - Coloring method for the natural stone and its apparatus - Google Patents

Abstract

PURPOSE: A method and a device for coloring a natural stone are provided to solve the problem of a limited range of natural materials to be colored and poor workability, and to produce natural stones having various colors. CONSTITUTION: The method comprises the steps of: passing a natural stone(60) pre-treated by a conventional method through a heating tunnel(20) and a dye chamber(30) equipped with a conveyor line(10), wherein the heating tunnel(20) has a circular section and is equipped with a heat insulating material(24) and a heater(22) on the outer and inner surfaces thereof, in order to heat the natural stone(60) positioned on a heating conveyor(12) to 270 deg.C and to deodorize it under vacuum, while it is passed through the heating tunnel(20); settling the natural stone obtained from the preceding step into the dye chamber(30) to infiltrate the dye to the inner surface of the natural stone(60) and to perform the coloring of natural stone; and applying a coating/gloss agent to protect the outer surface of the colored natural stone(60).

Description

Coloring method for the natural stone and its apparatus

The present invention relates to a natural stone coloration method and apparatus, and more particularly, to a natural stone coloration method and apparatus for allowing dyes to penetrate into the outer surface as well as the inner surface of the natural stone by varying the heating temperature and the coloring time according to the type of natural stone. It is about.

In general, natural stone is widely used as interior and exterior materials of the building by processing only the exterior surface utilizing natural colors, and the exterior surface is colored as needed. For example, it is used as a traffic facility by coloring fluorescent materials on the exterior.

The method of coloring natural stone as described above is a known technique. Briefly describing this, natural stone containing a large amount of silica components is precipitated in a dye for a long time, and after a predetermined time has elapsed, the natural stone precipitated in the dye is dried and dried. It was possible to obtain a colored natural stone.

However, the coloring method of the natural stone as described above has a time-inefficient aspect to precipitate the natural stone in the dye for a long time, in particular, there is a problem that there is a limit in the type of natural stone to be colored, such as only the natural stone containing a large amount of silica components can be colored And, there was a problem that only the outside of the colored natural stone is colored and the dye does not penetrate inside.

Accordingly, the present invention was invented to solve the above problems, and the natural stone is pretreated by a conventional method first by varying the chemical engineering method according to the type of natural stone, and the pretreated natural stone is subjected to a high temperature heating tunnel and a dye chamber. It is an object of the present invention to provide a method and apparatus for coloring natural stones, which allow dyes to penetrate into the outer surface as well as the inner surface of the natural stone by coloring the natural stone.

In order to achieve the above object, the present invention is to pass through the heating tunnel and the dye chamber, the primary pre-treated natural stone is installed along the conveyor line by a conventional method, the heating tunnel is circular in cross section and the outer surface of the insulating material The natural stone placed on the conveyor line by installing a heater on the inner surface is heated to 270 ° C. during the heating tunnel and vacuum desorbs the natural stone, and the natural stone that has undergone the first process is precipitated in the dye chamber. Natural stone of various colors by the dye coloring method of natural stone, comprising a second step of dye penetrating to the inner surface of the natural stone and coloring, and a third step of applying a coating agent to protect the outer surface of the natural stone dye penetrated to the inside It is possible to supply various colors of natural stones to the consumer, so that there is an infinite choice of colors for natural stones. It is intended to give width.

1 is a block diagram for explaining a method of coloring natural stone according to the present invention;

2 is an overall configuration view of a natural stone coloring apparatus according to the present invention;

Figure 3 is a general configuration view of a natural stone coloring apparatus according to the present invention.

-Explanation of symbols for the main parts of the drawings-

100-coloring device,

10-Conveyor Line, 12-Heating Conveyor,

14-tinted conveyor, 16-coated conveyor,

17, 18, 19-drive unit,

20-heating tunnel, 22-heater,

24-insulation,

30-dye chamber, 32-main chamber,

34-subchamber, 36-cooling pipe,

38-circulation pump,

40-coated tunnel, 42-spray nozzle.

Hereinafter, the present invention will be described with reference to the accompanying drawings.

Exemplary drawings Figure 1 is an overall configuration of the natural stone coloring method according to the invention, Figure 2 is a front configuration diagram of the natural stone coloring apparatus according to the invention, Figure 3 is a plan view of the natural stone coloring apparatus according to the present invention, In the present invention, as shown in FIG. 1, the natural stone treated before the first process by a conventional method is placed in a heating tunnel, the temperature in the heating tunnel is maintained at 100 ° C. to 400 ° C., and the natural stone is maintained in the heating tunnel for about 6 minutes. The first step for vacuum deodorization to discharge the foreign matter contained in the natural stone to the outside by heating the natural stone to about 270 ° C. by heating it to a high degree, and the natural stone is mixed with distilled water, a disperse dye, caustic soda and alum after the first step. The dye is placed in a dye chamber containing one dye, the temperature of the dye in the dye chamber is maintained at 30 ° C., and the natural stone is allowed to settle for 1 minute in the dye chamber. The second is a stone coloring method comprising a third step of coating a varnish material to the process and the exterior surface of the natural stone colored after the second step.

In more detail with respect to the infiltration and coloring method of the natural stone as described above, the natural stone pre-treated by a conventional method is put into the heating tunnel, and the internal temperature from the inlet to the outlet of the heating tunnel is sequentially reached from 100 ° C to 400 ° C. If the natural stone is passed through the heating tunnel in about 6 minutes, the temperature of the natural stone passing through the heating tunnel reaches 270 ℃.

That is, in the first step of vacuum deodorizing natural stone, when the pretreated natural stone is introduced into the heating tunnel, the inlet of the heating tunnel is maintained at 100 ° C., so that the natural stone gradually heats up to reach a temperature of 400 ° C. while being preheated. By passing, the temperature gradually rises until the natural stone passes through the exit of the heating tunnel, and in this process, foreign matter (eg, moisture) inside the natural stone is discharged to the outside, and the interior of the natural stone is in a vacuum deodorizing state. At this time, the weight of natural stone is reduced by about 0.03%.

As described above, the natural stone passed through the heating tunnel is reduced by 0.03% of the weight before the input, and the natural stone is deposited in the dye chamber containing the dye, and the dye penetrates into the interior through a fine gap (fine pores) through which foreign substances are released. As it penetrates, the weight of the natural stone increases by 1.97% of the weight after passing through the heating tunnel, so that the natural stone is colored (second step) to the outer surface as well as the inner surface.

After the second process, the magnetic zone stone is discharged along the conveyor line, and the surface temperature of the discharged natural stone is 65 ° C., dried by natural drying, and then put into a varnish coating tunnel, which is not shown in the drawing, but a conventional drying furnace Natural colors of various colors will be obtained depending on the dye injected through the process.

As described above, the natural stone dye coloring apparatus for realizing the dye coloring method of the natural stone according to the present invention, as shown in Figures 2 and 3, the heating tunnel 20 with the conveyor line 10 and the dye chamber 30 And the natural stone dye coloring device 100 is made of a varnish coating tunnel 40, the heating tunnel 20 is made of a cylindrical shape so that the heating conveyor line 12 is located in the center of the heating tunnel 20 cross section Installed, the inner and outer surfaces of the heating tunnel 20 consists of a heater 22 and the heat insulating material 24, the dye chamber 30 is composed of a main chamber 32 and a server chamber 34, the server chamber A cooling pipe 36 is installed in the 34, a circulation pump 38 is installed between the main chamber 32 and the server chamber 34, and a colored conveyor line 14 is installed in the main chamber 32. The varnish coating tunnel 40 is made of a cylindrical shape coated coating line (16) coating tunnel (40) It is installed at the center of the), the inner surface of the varnish coating tunnel 40 to be coated on the outer surface of the natural stone by the varnish injection nozzle 42, the conveyor line 10, respectively, a separate reduction motor Install the drive unit 17, 18, 19 equipped.

In the drawings, reference numeral 60 is a natural stone for coloring, 62 is a position sensor for detecting the position of the moving natural stone 60, 63 is a temperature sensor for detecting the dye temperature of the main chamber 32, 64 is a drain valve installed at the bottom of the main chamber 32, 66 is a gloss inlet installed in the coating tunnel 40, 68 is a coolant inlet, 70 is a coolant outlet.

Referring to the dye coloring apparatus of the natural stone according to the present invention made as described above in more detail, as the heating conveyor 12 is operated by the drive unit 17 having a deceleration motor natural stone 60 is the heating tunnel 20 The position detection sensor 62 installed at the inlet of the heating tunnel 20 detects this, and heat is dissipated while power is supplied to the heater 22.

At this time, the temperature of the inlet and outlet side of the heating tunnel 20 reaches from 100 ° C to 400 ° C, the time that the natural stone 60 passes through the exit side at the inlet side is moved over about 6 minutes at this time It is gradually heated (preheated) at the inlet side and discharged to the outlet side, and the temperature of the natural stone 60 reaches about 270 ° C. In addition, the weight of the natural stone 60 is reduced by 0.03% before and after the heating tunnel 20. .

As described above, when the weight of the natural stone 60 is reduced and the natural stone 60 heated to a high temperature is introduced into the main chamber 32, the colored conveyor 14 is positioned by the position sensor 62 installed at the inlet of the main chamber 32. The driving unit 18 for operating the is operated.

The colored conveyor 14 is operated to precipitate a high temperature natural stone 60 in the dye, at this time the dye penetrates into the interior of the natural stone 60, the dye temperature of the main chamber 32 is maintained at 30 ℃ Although the temperature of the dye is increased by the high-temperature natural stone (60), which is introduced, the temperature sensor (63) installed in the main chamber (32) is operated to drive the circulation pump (38).

The subchamber 34 is provided with a cooling pipe 36 so that the temperature of the dye is maintained at a constant temperature (30 ° C. or less), and the cooled dye of the subchamber 34 is driven by the circulation pump 38. Is injected into the main chamber 32 through the line on one side, and the heated dye of the main chamber 32 is moved to the subchamber 34 through the line on the other side, so that the dye temperature of the main chamber 32 is always constant. The temperature is maintained.

When the dye is colored on the natural stone 60 as described above, the weight of the natural stone 60 is increased by 1.97% of the weight of the natural stone after passing through the heating tunnel 20, the natural stone 60 in the main chamber 32 is about 1 to the dye The powder is precipitated to undergo a coloring process, and although not shown in the drawing, a timer is installed in the driving unit 18 for operating the coloring conveyor 14 so that the natural stone is stopped for a predetermined time when it is detected by the sensor at the exit side. Driven.

Although the natural stone colored through the dye chamber 30 is not shown in the drawing, the natural stone 60 is moved to the coating tunnel 40 through the natural drying process, so that the natural stone 60 reaches the entrance of the coating tunnel 40. At the same time as the coating conveyor 16 is operated by the spray coating 42 and the coating agent for protecting the color of the colored dye by the spray nozzle 42 installed in the coating tunnel 40 is sequentially sprayed.

At this time, the additives added during the coating process can produce various natural stones that meet the purpose of use by adding additives according to the purpose of use, such as adding a sunscreen for preventing discoloration or adding a fluorescent material for use as a traffic safety facility. Will be.

As described above, the present invention is to pass through the heating tunnel 20 and the dye chamber 30 having the conveyor line 10, the natural stone 60 pre-treated by a conventional method, the heating tunnel 20 It forms a circular cross section and installs a heat insulating material 24) and a heater 22 on the outer surface and the inner surface to place a natural stone 60 on the heating conveyor 12 and heat it to 270 ° C. while passing the heating tunnel 20 to vacuum the natural stone. A first step of deodorizing, a second step of precipitating the natural stone passed through the first step in the dye chamber 30, the dye penetrating to the inner surface of the natural stone 60, and the natural stone in which the dye penetrates to the inside. Natural stone of various colors can be obtained by dye coloring method and apparatus of natural stone, which consists of the third process of applying coating and varnish to protect the outer surface of (60), so that natural stone of various colors can be supplied to consumers. Nothing about There is an effect that can breadth of choice.

Claims (2)

The natural stone treated before the first process by a conventional method is put in a heating tunnel, the temperature in the heating tunnel is maintained at 100 ° C to 400 ° C, and the natural stone is heated for about 6 minutes in the heating tunnel to heat the natural stone to about 270 ° C. The first step for vacuum deodorizing to discharge the foreign matter contained in the natural stone to the outside to the outside, and after the first step, the natural stone is put into a dye chamber containing a mixture of distilled water, disperse dyes, caustic soda and alum. The temperature of the dye in the dye chamber is maintained at 30 ° C., and the second step of coloring the natural stone by precipitating the injected natural stone in the dye chamber for about one minute, and after the second step is applied to the outer surface of the colored natural stone Natural stone coloring method comprising a third step of coating. The natural stone dye coloring device 100 is made of a heating tunnel 20 having a conveyor line 10, a dye chamber 30, and a varnish coating tunnel 40, but the heating tunnel 20 has a cylindrical shape. The heating conveyor line 12 is installed to be located at its center on the heating tunnel section 20, and the inner and outer surfaces of the heating tunnel 20 are composed of a heater 22 and a heat insulating material 24, the dye chamber 30 Is composed of the main chamber 32 and the server chamber 34, the cooling pipe 36 is installed in the server chamber 34, the circulation pump 38 is installed between the main chamber 32 and the server chamber 34 And, the colored conveyor line 14 is installed in the main chamber 32, the varnish coating tunnel 40 is made of a cylindrical shape of the coating conveyor line 16 is installed in the center of the coating tunnel 40, The inner surface of the varnish coating tunnel 40 to coat the outer surface of the natural stone by the gloss ash spray nozzle 42, the Conveyor line 10 is a natural stone coloring device, characterized in that each drive unit (17) (18) (19) provided with a separate deceleration motor.