KR20150051777A - Manufacturing method for ceramic ball having detergent function - Google Patents

Abstract

The present invention relates to a manufacturing method of a ceramic ball with a detergent function used in washing machines or dishwashers, which improves the strength and washing force of the ceramic ball and comprises: a first step of crushing raw materials used for molding a ceramic ball in a ball milling process, passing the particle of the raw material whose size is not more than #325, and making the same into fine powders; a second step of mixing the fine powders from the raw material in a mixer for 2 to 20 hours and removing irons from the powders; a third step of injecting the powder and water to a molding apparatus having a cylindrical rotation drum and accordingly molding the ball; a fourth step of drying the molded ball for a certain time and removing moisture; a fifth step of firing the dried ball between 600 and 1400 degree Celsius in order of temperatures like low, middle, high, middle and low temperature and manufacturing the ceramic ball; a sixth step of washing the ceramic ball; and a seventh step of drying the washed ceramic ball.

Description

Technical Field [0001] The present invention relates to a method of manufacturing a ceramic ball having a detergent function,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of manufacturing a ceramic ball for a detergent used in a washing machine or a dishwasher, and more particularly, to a method of manufacturing a ceramic ball having a detergent function that greatly improves the strength and cleaning force of the ball.

Ceramics such as the well-known ceramics are well known, such as non-metallic inorganic solid materials, glass, ceramics, cement and refractories made by baking at high temperatures.

Recently, products using such ceramics have been introduced and used continuously. Ceramic balls are fired and manufactured in the form of a small ball, and the inside of the washing machine detergent system 10, as shown in FIGS. 3 and 4, The ceramic ball B may be charged into the hollow upper case 11 and the lower case 12 or charged into the interior of the detergent device 20 for washing the dishwasher, will be.

The detergent devices 10 and 20 are installed in a washing machine or a dishwasher and are washed and cleaned without general detergents by antibacterial and purifying actions by far infrared rays and anions emitted from the ceramic balls B incorporated therein, It is washed.

A conventional method of manufacturing such a ceramic ball will be described.

First, a raw material (ceramic) is kneaded and extruded, and a cutter is attached to a place such as a noodle, which is then cut, and then the cut is rolled to produce a ceramic ball. However, such a manufacturing method has a problem that the size and shape of the ceramic balls are not constant and the strength is weak.

Secondly, there is a method of forming a ceramic ball by providing a rotating drum having a hexagonal or octagonal shape for forming a ceramic ball, and spraying water and a raw material into the rotating drum. However, such a method is problematic in that when the ceramic ball is formed, the ceramic ball hits the angle of the rotary drum or falls off at the angle, which causes cracks or balls, which hinders the formation, Respectively.

Third, there is a method of manually making a ceramic ball, but it has a problem that it is used only when it is a large size with a diameter of 30 mm to 100 mm.

Registration Utility Model No. 20-0458539, Registered Patent Publication No. 10-0378260, Registered Patent Publication No. 10-0363121

SUMMARY OF THE INVENTION The present invention has been conceived to solve the problems described above, and it is an object of the present invention to provide a method of manufacturing a ceramic ball for a detergent for use in a washing machine or a dishwasher, And a method of manufacturing the ball.

To achieve these objects and other advantages and in accordance with the purpose of the invention, as embodied and broadly described herein, there is provided a method for manufacturing a ceramic ball, comprising: grinding a raw material for forming a ceramic ball by a ball mill; A second step of blending the undifferentiated raw material through a blender for 2 to 20 hours to remove iron powder contained in the powder; A third step of molding the ball by injecting the powder and water into a molding apparatus including a cylindrical rotating drum; A fourth step of drying the ball formed in the third step for a predetermined time to remove moisture; A fifth step of firing the dried balls at a temperature of 600 to 1400 占 폚 in the order of low temperature? Middle temperature? High temperature? Middle temperature? Low temperature to produce a ceramic ball; A sixth step of washing the produced ceramic balls; And a seventh step of drying the cleaned ceramic balls for a predetermined period of time.

Also it sleeps follow to the present invention, wherein the raw material pulverized in the first process, a silicon oxide (SiO ₂₎ 60 ~ 70 parts by weight of aluminum oxide _{(Al 2 O 3) 18 ~} 22 parts by weight of zirconium oxide (ZrO ₂₎ 8 ~ (K ₂ O) 1.5 to 2.5 parts by weight, sodium oxide (Na ₂ O) 0.5 to 1.5 parts by weight, calcium oxide (CaO) 0.1 to 0.5 parts by weight, iron oxide (Fe ₂ O ₃ ) 0.5 parts by weight of magnesium oxide (MgO) 0.1 ~ 0.5 parts by weight of hafnium oxide (HfO ₂₎ 0.1 ~ 0.5 parts by weight of titanium dioxide (TiO ₂₎ 0.05 ~ 0.12 parts by weight, barium (BaO) 0.01 ~ 0.04 parts by weight of oxide, 0.01 to 0.04 parts by weight of yttrium oxide (Y ₂ O ₃ ), and 0.01 part by weight of manganese oxide.

In addition, according to the present invention, the molding apparatus of the third process includes a cylindrical rotating drum and an injector for injecting water into the inlet of the rotating drum, and the inner surface of the rotating drum is cement-coated.

As described above, the present invention provides an advantage of greatly improving the strength and cleaning force of a ceramic ball for a detergent used in a washing machine or dishwasher.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view showing a process of manufacturing a ceramic ball having a detergent function according to the present invention,
Fig. 2 shows an embodiment of a molding apparatus to which the present invention is applied,
3 is a configuration diagram of a washing machine detergent system to which the present invention is applied,
4 is a configuration of a detergent device for washing dishwasher to which the present invention is applied.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings.

1 is a flow chart of a method of manufacturing a ceramic ball having a detergent function according to the present invention.

As shown in the figure, the method for manufacturing a ceramic ball having a detergent function of the present invention comprises:

(S10) of pulverizing a raw material to be formed into a ceramic ball to make it finer, a second step (S20) of blending the undifferentiated raw material and removing iron powder contained in the powder, A third step (S30) of forming a ball by injecting the powder and water into a molding apparatus, a fourth step (S40) of drying water by drying the ball formed in the third step for a predetermined time (S40) A fifth step S50 of baking the balls to produce a ceramic ball, a sixth step S60 of washing the produced ceramic balls, a seventh step S70 of drying the washed ceramic balls for a predetermined time, .

More specifically, the first process (S10) is a process that the micronized by pulverizing the material to mold a ceramic ball, wherein the grinding material is silicon oxide (SiO ₂₎ 60 ~ 70 parts by weight of aluminum oxide (Al ₂ O ₃ ) 18-22 parts by weight of zirconium oxide, 8-12 parts by weight of zirconium oxide (ZrO ₂ ), 1.5-2.5 parts by weight of potassium oxide (K ₂ O), 0.5-1.5 parts by weight of sodium oxide (Na ₂ O) ) 0.1 to 0.5 parts by weight of iron oxide (Fe ₂ O ₃₎ 0.1 to 0.5 parts by weight of magnesium oxide (MgO) 0.1 to 0.5 parts by weight of hafnium oxide (HfO ₂₎ 0.1 to 0.5 parts by weight of titanium oxide (TiO ₂₎ 0.05 to 0.12 parts by weight of barium oxide (BaO) 0.01 ~ 0.04 is composed of parts by weight, the proportion of yttrium _{(Y 2 O 3) 0.01 ~} 0.04 parts by weight, 0.01 parts by weight of broken oxide needs oxidation.

 The ceramic ball material thus formed may be a wet type, a dry type, or a solid material.

In the case of wet and solid materials, the raw material should be pulverized by a ball mill operation after drying, and the raw material particles should be pulverized by passing through # 325 or less.

If it is dry, it should be pulverized by a ball mill operation and the raw material particles should be pulverized by passing through # 325 or less.

If the balls are made with thick raw material particles, the density of the balls becomes poor, the strength drops, and the forming becomes smooth.

4: 6, 5: 5, 6: 4, 5: 5, and 6: 4 depending on the application of the balls and the raw material components. , 7: 3 and 24 hours to 125 hours after charging. At this time, although the rotation speed of the ball mill varies depending on the ball mill capacity, it is generally preferable to be 60 rpm at 10 rpm.

In the second process (S20), the undifferentiated raw material is blended in the first process and the iron powder contained in the powder is removed, and the undifferentiated raw material powder is added to the blender in proportion to the capacity of the blender and the composition of the raw material Followed by mixing for 2 to 20 hours.

The point here is to minimize iron. If the blender is made of stainless steel, or if it is a plain iron plate, iron is removed using a magnet.

The reason for removing the iron is to cancel out the far-infrared and anion emission effects inherent in ceramics.

The third process (S30) is a process of molding the balls by injecting the powder and water into a molding apparatus including a rotary drum. The molding apparatus 30 will be described first with reference to FIG.

The molding apparatus 30 includes a rotary drum 31 supported and rotatably supported through support rods 32 formed on both sides thereof and a sprayer 33 for spraying water to the inlet 34 of the rotary drum 31, .

The inner surface of the rotary drum 31 is cement-coated. This causes the raw material powder to be easily rolled by the rough surface of the cement coating and naturally form the balls.

Therefore, in the process of forming the balls, the ceramic ball powder material is introduced into the rotary drum 31 through the inlet 34, and then the rotary drum 31 is rotated.

At the same time, water is injected into the injection port through the injector 33.

In this case, it is very important to feed the powder raw material and water in a timely manner at the time of ball molding, because if the supply of water to the powder raw material is slow or insufficient, the finished ball may peel off as if the onion skin is peeled off. At this time, the rotation speed of the rotary drum 30 is preferably 15 to 200 rpm.

In a fourth step S40, the ball formed in the third step is dried for a predetermined time to remove moisture, and the drying may be performed by natural drying or forced drying.

The natural drying is naturally dried for 24 hours or more in a natural shade, and the forced drying is carried out at a temperature of 60 to 250 ° C for 10 hours to 72 hours.

In a fifth step (S50), the dried balls are fired to produce a ceramic ball, and the dried balls are heat-treated in a firing furnace.

Depending on the raw material and application of the balls, the firing temperature should be set at 600 ~ 1400 ℃, and the temperature should be gradually raised or lowered from low temperature → middle temperature → high temperature → middle temperature → low temperature.

Do not remove the ball from the kiln (firing furnace) immediately after turning off the fire, and do not remove it from the firing furnace until the ball has cooled down to some extent even in the turned-off firing furnace. Generally, the heat treatment in the baking furnace is preferably performed for 40 to 400 hours, depending on the material of the balls.

In a sixth step S60, the fired ceramic balls are washed, and the foreign substances adsorbed on the ceramic balls are removed by washing.

The seventh process (S70) is a process of drying the cleaned ceramic balls for a predetermined period of time, and the fourth process (S40) is performed again to complete the formation of the ceramic balls.

An embodiment of the present invention constructed as described above will be described below.

<Examples>

<Step 1>

Silicon oxide (SiO ₂₎ 65.1 parts by weight of aluminum oxide (Al ₂ O ₃₎ 20.2 parts by weight of zirconium _{(ZrO 2) (Na 2 O} ) 10.6 parts by weight of potassium oxide (K ₂ O) 2.08 parts by weight, sodium oxide 0.87 parts by weight of calcium oxide (CaO) oxide 0.31 parts by weight of iron oxide (Fe ₂ O ₃₎ 0.29 parts by weight, magnesium (MgO) 0.22 parts by weight of hafnium oxide (HfO ₂₎ 0.2 parts by weight of titanium oxide (TiO ₂₎ 0.08 A ceramic ball dry material in a ratio of 0.02 part by weight of barium oxide (BaO), 0.02 part by weight of yttrium oxide (Y ₂ O ₃ ), and 0.01 part by weight of manganese oxide was ground by a ball mill operation so that the raw material particles were # 325 or less Followed by pulverization to prepare a ceramic powder.

In this case, the raw material and grinding balls were charged to a ball mill at 50%, the raw material and balls were charged at a ratio of 5: 5 and pulverized for 48 hours. The rotation speed of the ball mill was set at 42 rpm.

<Step 2>

In the first step, the undifferentiated raw materials were put into a blender, the blender was operated for 12 hours, and iron powder was removed using a magnet.

<Step 3>

After the blended ceramic powder material was put into the molding apparatus 30, the rotary drum 31 was rotated while injecting water into the injection port through the injector 33.

At this time, the rotational speed of the rotary drum 30 was set to 95 rpm.

<Fourth Process>

The ball formed in the third process was dried in a shady place for 24 hours.

<Step 5>

The dried balls were put into a firing furnace and fired at a firing temperature of 600 ° C, 1000 ° C, 1400 ° C, 1000 ° C, and 600 ° C for 250 hours.

<Sixth Process>

The fired ceramic balls were washed with water pressure.

<Step 7>

And dried in the same manner as in the fourth step.

The ceramic balls thus produced are filled in the detergent devices 10 and 20 shown in Figs. 3 and 4 and used in a washing machine or a dishwasher.

<Experimental Example 1>

The cleaning performance of the ceramic balls manufactured according to the above examples was tested under the following conditions. The test was carried out by the Korea Clothing Inspection & Research Institute. The results are shown in Table 1 below.

<Condition>

(1) Condition of washing treatment: After the sample is put in, it is washed according to the following conditions.

(2) Water level: (20 ±), (3) Washing course: Standard course, (4) Foil load: 3.0kg (KS C 9608: 2010) 2) ° C, ⑥ sample input amount: 2ea,

(2) Use contaminated cloth: wet artificial contaminated cloth (JIS C 9606: 2003)

(3) Test method: After measuring the reflectance of the contaminated cloth before and after the cleaning process,

(4) Calculation

① Whiteness =

② Washing power (%) = (Washing degree after washing - Washing degree before washing) / (Washing degree before washing - Washing degree before washing) × 100

Test Items Test result Cleaning power (%) 37.8%

As can be seen from the results of Table 1, it was confirmed that the use of the ceramic balls manufactured according to the embodiment of the present invention greatly improved the cleaning power.

<Experimental Example 2>

The strength of the ceramic balls manufactured according to the above examples was tested under the following conditions. The test was conducted by the Korea Ceramic Technology Institute, and the result, Table 2, was evaluated by the Korea Ceramic Technology Institute.

<Condition>

(1) Name of Test Sample / Material: Ceramic Ball (6mm)

(2) Test method: Instrumental analysis

(3) Test environment: temperature (18 ± 1) ° C., relative humidity: (40 ± 1)% R.H.

Name of sample Test analysis item Test result Test analysis method Remarks Ceramic Ball (6mm) Compressive load (kgf) One 85.72 Instrument analysis 2 94.96 3 89.36 4 83.74 5 91.10

As can be seen from Table 2, the ceramic balls (6 mmm) produced according to the present invention were found to have high strength.

<Experimental Example 3>

Anion emission was tested under the following conditions, and the test was conducted by the Korea Far Infrared Application Evaluation Research Center. The result, Table 3, was evaluated by Korea Far Infrared Application Evaluation Research Center.

<Condition>

(1) Test method: KFIA-FI-1042

(2) Specimen: 20 g

(3) The test was carried out using a charge particle measuring device at room temperature of 26 ° C, humidity of 34%, and number of anions in the atmosphere of 104 / cc. The anion released from the object to be measured was measured by the number of ions (ION) per unit volume.

(4) Use: Quality control

Sample Name / Item Anion (ION / cc) Ceramic Ball for Washing Machine 858 Ceramic ball for dishwasher 1,216

 As can be seen from the results of Table 3, it was confirmed that the ceramic balls manufactured according to the embodiment of the present invention have significantly improved anion emission amount as compared with the conventional ceramic balls.

Claims (3)

A first step (S10) of pulverizing a raw material for forming a ceramic ball by a ball milling operation and passing the raw material particles through # 325 or less to pulverize the raw material particles;
(S20) of blending the undifferentiated raw material through a blender for 2 to 20 hours to remove iron powder contained in the powder;
A third step (S30) of forming a ball by injecting the powder and water into a molding apparatus including a cylindrical rotating drum;
A fourth step (S40) of drying the ball formed in the third step for a predetermined time to remove moisture;
A fifth step (S50) of baking the dried balls at a temperature of 600 to 1400 占 폚 in the order of low temperature? Middle temperature? High temperature? Middle temperature? Low temperature to produce a ceramic ball;
A sixth step (S60) of washing the produced ceramic balls; And
And a seventh step (S70) of drying the cleaned ceramic balls for a predetermined period of time (S70).
The method according to claim 1,
Wherein the raw material pulverized in the first process (S10) is a silicon oxide (SiO ₂₎ 60 ~ 70 parts by weight of aluminum _{(Al 2 O 3) 18 ~} 22 parts by weight of zirconium (ZrO ₂₎ 8 ~ 12 parts by weight of oxide, 1.5 to 2.5 parts by weight of potassium oxide (K ₂ O), 0.5 to 1.5 parts by weight of sodium oxide (Na ₂ O), 0.1 to 0.5 parts by weight of calcium oxide (CaO), 0.1 to 0.5 parts by weight of iron oxide (Fe ₂ O ₃ ) 0.1 to 0.5 parts by weight of magnesium oxide (MgO), 0.1 to 0.5 parts by weight of hafnium oxide (HfO ₂ ), 0.05 to 0.12 parts by weight of titanium oxide (TiO ₂ ), 0.01 to 0.04 parts by weight of barium oxide (BaO) ₂ O ₃ ) 0.01 to 0.04 parts by weight, and manganese oxide 0.01 parts by weight.
The method according to claim 1,
The molding apparatus of the third step S30 includes a cylindrical rotary drum 31 and an injector 33 for injecting water into the inlet 34 of the rotary drum 31. The rotary drum 31 Wherein the inner surface of the ceramic ball is cement-coated.

Images