KR101777388B1 - apparatus and method - Google Patents

Abstract

The present invention relates to an apparatus and a method for refining salt. More specifically, the present invention relates to an apparatus and a method for manufacturing refined salt wherein unrefined salt such as sun-dried salt is dissolved, refined, and re-crystallized. The apparatus for refining salt comprises: a refining tank (100) comprising a porous wood material layer (11), a straw bag layer (12), a porous sand layer (13), a gravel layer (14), a charcoal powder layer (15), a porous sand layer (16) formed on an upper side of the charcoal powder layer (15), and a straw bag layer (17) formed on an upper side of the porous sand layer (16); a conveyer belt (200) which is installed under the refining tank (100); an impurity removing knife blade (210); an impurity storing container (220); an impurity removing brush (230) which is formed on one lateral side of the conveyer belt (200) and is connected to a motor (240); a water storage tank (300) which is installed under the conveyer belt (200); and multiple refining furnaces (400) which are connected to a pump (310) and a valve (410) in the water storage tank (300).

Description

[0001] APPARATUS AND METHOD FOR MANUFACTURING TABLETS [0002]

The present invention relates to an apparatus and a method for purifying a salt, and more particularly, to an apparatus and a method for producing a purified salt by dissolving a crude salt such as a salt of the sun and purifying and recrystallizing the salt.

Salts used for food are largely classified as sun saliva and tablets. It is an untreated salt made by evaporating water from the wind and sunlight, which is a thick, translucent hexahedron crystal. Refined salt is a crystal of sodium chloride obtained by electrolyzing seawater to remove impurities and heavy metals from the ion exchange membrane.

Ingredients in salt except sodium chloride are considered impurities. Such impurities include sand, various minerals, heavy metals, environmental hormones, and the like. Refined salt contains almost no impurities, but it is not preferable to use for salty taste because it has all the minerals such as calcium, magnesium, zinc, potassium and iron which are useful for human body. Since the sun salt contains various impurities, attempts have been made to remove harmful impurities.

Techniques for removing salt impurities typically heat the salt to a very high temperature. Salt begins to melt from small particles at about 850 ° C and completely melts when it reaches about 1000 ° C. When the salt is treated at high temperature, most of the impurities are burned. Korean Patent No. 572371 discloses dissolving roasted salt in a melting furnace at 800 to 1200 占 폚 and firing it again at a temperature of 800 to 1200 占 폚. Korean Patent Publication No. 1997-9073 discloses that a sun salt is heated in a furnace to maintain it at 450-500 ° C for a certain period of time, heated at 550-600 ° C, and aged at 600-800 ° C. Korean Patent No. 394939 discloses a process for producing a crude

The salt is added and the flask is rotated while the tablet is rotated. The flame is heated until the internal temperature reaches about 800 ° C. in the tablet, and the salt is liquefied by heating the internal temperature to about 1500 ° C. by refining in an oxygen atmosphere, followed by separation by boiling separation and cooling . Korean Patent No. 867114 discloses a method in which salt is eluted from a reservoir at a humidity of 95% at a temperature of 30 ° C and the salt eluted from the water is roasted at 350 ° C and dissolved in tap water to separate and precipitate the precipitate impurities.

Conventional salt refinement methods are very complex and require considerable high temperature treatment and are costly and time consuming. In addition to harmful substances among salt impurities, various useful minerals can be removed. Even if you can not remove all of the salt impurities, you need a small device that can easily remove harmful substances of salt and bitter taste of sun salt from your home.

It is an object of the present invention to provide an apparatus and method for producing purified salt which can remove some impurities which can be contained in commercial salt easily and can remove sulphate which is a bitter taste component in sun salt by simple construction and operation.

The present invention relates to a tablet tank body (10) having a hexagonal shape with a space formed therein, a porous wood layer (11) having porous through holes formed in the bottom thereof, a balaney layer (12) formed on the porous wood layer (11) A porous sand layer 13 formed on the upper portion of the barycenter layer 12, a gravel layer 14 formed on the porous sand layer 13, a char layer 15 formed on the gravel layer 14, A refining tank 100 composed of a porous sand layer 16 formed on the upper part of the porous sand layer 16 and a balm layer 17 formed on the porous sand layer 16; The upper and lower movable lower supports (260) are installed on the lower part of the tablet tank (100) so that the brine passing through the tablet tank (100) is dropped onto the upper surface of the conveyor belt and then dropped into the lower water tank , 260 ') of the conveyor belt (200); An impurity removing blade 210 provided on one side of the conveyor belt 200; An impurity storage container 220 in which impurities removed from the impurity removing blade 210 are collected; An impurity removing brush 230 connected to one side of the conveyor belt 200 by a motor 240 and installed on the impurity storage container 250; A water storage tank 300 installed at a lower portion of the conveyor belt 200; And a plurality of purifier 400 connected to the pump 310 and the valve 410 in the reservoir 300.

The refined salt produced in the present invention can easily remove some impurities which can be contained in commercial salt, and can remove sulfate, which is a bitter taste component in sun salt, by simple construction and operation.

1 is a sectional view showing a purification apparatus of the present invention.
2 is a sectional view showing a purification apparatus of the present invention.
3 is a perspective view showing the purification apparatus of the present invention.

The present invention relates to a tablet tank body (10) having a hexagonal shape with a space formed therein, a porous wood layer (11) having porous through holes formed in the bottom thereof, a balaney layer (12) formed on the porous wood layer (11) A porous sand layer 13 formed on the upper portion of the barycenter layer 12, a gravel layer 14 formed on the porous sand layer 13, a char layer 15 formed on the gravel layer 14, A refining tank 100 composed of a porous sand layer 16 formed on the upper part of the porous sand layer 16 and a balm layer 17 formed on the porous sand layer 16; The upper and lower movable lower supports (260) are installed on the lower part of the tablet tank (100) so that the brine passing through the tablet tank (100) is dropped onto the upper surface of the conveyor belt and then dropped into the lower water tank , 260 ') of the conveyor belt (200); An impurity removing blade 210 provided on one side of the conveyor belt 200; An impurity storage container 220 in which impurities removed from the impurity removing blade 210 are collected; An impurity removing brush 230 connected to one side of the conveyor belt 200 by a motor 240 and installed on the impurity storage container 250; A water storage tank 300 installed at a lower portion of the conveyor belt 200; And a plurality of refineries 400 connected to the pump 310 and the valve 410 in the reservoir 300.

The present invention provides a method for purifying a salt, comprising: dissolving an impurity-containing salt in a purification tank (100); A porous wood layer 11 having porous holes formed in the bottom of a hexagonal tablet tank main body 10 having a space therein formed therein with a dissolved space therein and a bale layer 12 formed on the porous wood layer 11 A porous sand layer 13 formed on the upper portion of the barycenter layer 12, a gravel layer 14 formed on the porous sand layer 13, a charcoal powder layer 15 formed on the gravel layer 14, Passing through a purification tank 100 consisting of a porous sand layer 16 formed on top of the layer 15 and a barium layer 17 formed on the porous sand layer 16; The brine having passed through the refining tank 100 is installed in the lower part of the refining tank 100. The brine passing through the refining tank 100 is dropped onto the upper surface of the conveyor belt, To a conveyor belt (200) installed on an upper portion of a vertically movable lower support (260, 260 ') so as to be dropped; Removing the impurities from the impurity removing blade 210 provided on one side of the conveyor belt 200 to collect the impurities in the impurity storage container 220; Removing the impurities from the impurity removing brush 230 installed on the impurity storage container 250 by the motor 240 on one side of the conveyor belt 200; Storing the brine passing through the conveyor belt (200) in a water storage tank (300) installed at the lower part of the conveyor belt (200); Moving from the water storage tank 300 to the plurality of refineries 400 connected to the pump 310 and the valve 410; The brine introduced into the purifier furnace 400 is continuously evaporated to remove brine containing 25 to 50% by weight of the salt component and 50 to 75% by weight of water at a temperature of 200 to 250 ° C. and a temperature of 100 to 150 ° C. And spray-drying the mixture by a high-temperature spray dryer having a spray rate of the nozzle and a through-hole size of the nozzle adjusted to 0.8 to 1.2 mm in size, thereby producing a crystal of crucifer trihydrate having a particle size of 0.8 to 1.2 mm The present invention relates to a method for producing high-temperature spray-dried refined salt containing trihydrate crystals.

1 to 3, in the refining apparatus of the present invention, the refining tank 100 has a hexagonal tablet tank body 10 having a space formed therein, and a porous wood layer 11 is formed on the bottom of the refining tank body 100 A porous layer 12 formed on the porous wood layer 11, a porous sand layer 13 formed on the barrier layer 12, a gravel layer 14 formed on the porous sand layer 13, A charcoal powder layer 15 formed on the gravel layer 14, a porous sand layer 16 formed on the char powder layer 15 and a balm layer 17 formed on the porous sand layer 16, Can be easily removed, and sulfate, which is a bitter taste component in the sun salt, can be removed by simple construction and operation.

1 to 3, the refining apparatus of the present invention is installed in the lower part of the refining tank 100, and the brine passing through the refining tank 100 is dropped on the upper surface of the conveyor belt, A conveyor belt 200 is installed on the upper and lower support platforms 260 and 260 'so that the impurities can be dropped by the conveyor belt 200. The impurity removing blade 210 is installed on one side of the conveyor belt 200, The impurity storage container 220 is provided with a motor 240 on one side of the conveyor belt 200 to remove impurities on the impurity storage container 250, And a plurality of refineries 400 connected to the pump 310 and the valve 410 through the reservoir 300. The plurality of refineries 400 are connected to each other by a pump 410, Which can be included in the crude salt It is possible to easily remove impurities and remove sulfate, which is a bitter taste component in sun salt, by simple construction and operation.

The high-temperature spray dried calcium sulfate produced in the present invention does not lose minerals during processing, and is transformed into a trihydrate molecular structure and size suitable for absorption in the human body in a state in which minerals remain intact so that seawater containing a large number of minerals beneficial to the human body It is easy to replenish natural minerals through the salt made from the raw material, and it can solve the problem of the conventional calcium sulfate which can utilize the many useful properties contained in the salt and cause the phenomenon of mineral deficiency.

The experiment was carried out with the expectation that the chemical structure of the natural salt contained in the natural salt would be different during the preparation of the powder, and the temperature of the nozzle heat inlet was 200 to 250 ° C., The temperature is set at 100 to 150 ° C., and the spraying speed of the nozzle and the penetration size of the nozzle are adjusted to a particle size of 0.8 to 1.2 mm and spray-dried at a high temperature by a high-temperature spray dryer to produce a crystal of a flower having a particle size of 0.8 to 1.2 mm.

The high-temperature spray dried gypsum prepared in the present invention is slowly added to suppress the formation of bubbles in the high-temperature spraying process. When the reaction is completed, the gypsum is filtered with a filter aid or impurity removers to obtain clean seawater and dried.

In the present invention, the seawater is continuously evaporated by continuously evaporating the seawater introduced into the refining furnace, and the seawater is preferably adjusted to bring the pH of the seawater to a pH range of 6.5 or less with a sodium or potassium hydroxide solution. Or 6.5 or more, there may be a problem in the chemical structure of the fly ash during formulation.

The high-temperature spray drying method used in the present invention can be used in a high-temperature spray drying method, but since it has a long contact time, it may slowly dry and insoluble chemical structure may be produced, which leads to a disadvantage in mass production and a high manufacturing cost.

The high-temperature spray drying method of the present invention is advantageous because it does not take long time to contact with water by instantly pulverizing seawater solution and has a short processing time in high-temperature treatment. The operating conditions of the high-temperature spray dryer are preferably such that the temperature of the heat injection port does not exceed 250 ° C and the preferred temperature is maintained at 200 to 250 ° C. The temperature of the heat outlet is set at 100 to 150 ° C. When the temperature is outside this temperature range, the water content other than the crystal water is not preferable, and the preferable temperature is 100 ° C. The residence time of the reaction solution is suitably within 3 seconds, and if it is more than that, it is not preferable because there is a risk of deterioration of the structure of the roots.

It can be seen from the analysis by TGA that the crystal of the present invention contains crystalline water. In order to analyze the crystal number contained therein, thermal analysis was used to measure the amount of the crystal of the present invention The analysis shows that the product contains 20% of crystals, and the chemical structure of the product is trihydrate.

As a result of measuring the change with time for 3 months of the chlorate trihydrate prepared by the method of the present invention, it was confirmed that it was completely dissolved when it was dissolved in water of 5 times of the flux after 3 months, and it was confirmed that it was stable and water soluble.

[Example 1]

The seawater flowing into the refining furnace is continuously evaporated to set the evaporated seawater composed of 50 wt% of the salt component and 50 wt% of the water at the temperature of the heat injection port of 250 캜 and the temperature of the outlet port of 100 캜, Was spray-dried at a high temperature by a high-temperature spray dryer adjusted to a particle size of 1.2 mm to prepare a granite 3 hydrate crystal having a particle size of 1.2 mm.

[Experimental Example 1]

It can be seen from the analysis of TGA of the granite produced in Example 1 that crystal water is contained therein. In order to analyze the number of crystals contained therein, thermal analysis was used to measure the number of crystals The analysis revealed that the chemical structure of the product was trihydrate.

As a result of measuring the change with time for 3 months of the chlorate trihydrate prepared by the method of the present invention, it was confirmed that it was completely dissolved when it was dissolved in water of 5 times of the flux after 3 months, and it was confirmed that it was stable and water soluble.

10: refining tank body 100: refining tank
200: Conveyor belt 300: Reservoir
400: by refining

Claims (2)

A porous wood layer 11 having porous through holes formed in the bottom of a hexagonal tablet tank main body 10 having a hollow space therein, a bale layer 12 formed on the porous wood layer 11, A gravel layer 14 formed on the porous sand layer 13, a char layer 15 formed on the gravel layer 14, a porous layer 15 formed on the top of the porous layer 15, A refining tank 100 comprising a porous sand layer 16 formed on the porous sand layer 16 and a balm layer 17 formed on the porous sand layer 16;
The upper and lower movable lower supports (260) are installed on the lower part of the tablet tank (100) so that the brine passing through the tablet tank (100) is dropped onto the upper surface of the conveyor belt and then dropped into the lower water tank , 260 ') of the conveyor belt (200);
An impurity removing blade 210 provided on one side of the conveyor belt 200;
An impurity storage container 220 in which impurities removed from the impurity removing blade 210 are collected;
An impurity removing brush 230 connected to one side of the conveyor belt 200 by a motor 240 and installed on the impurity storage container 250;
A water storage tank 300 installed at a lower portion of the conveyor belt 200; And
And a plurality of refineries (400) connected to the pump (310) and the valve (410) in the water tank (300).
Dissolving an impurity-containing salt in the refining tank (100);
A porous wood layer 11 having porous holes formed in the bottom of a hexagonal tablet tank main body 10 having a space therein formed therein with a dissolved space therein and a bale layer 12 formed on the porous wood layer 11 A porous sand layer 13 formed on the upper portion of the barycenter layer 12, a gravel layer 14 formed on the porous sand layer 13, a charcoal powder layer 15 formed on the gravel layer 14, Passing through a purification tank 100 consisting of a porous sand layer 16 formed on top of the layer 15 and a barium layer 17 formed on the porous sand layer 16;
The brine having passed through the refining tank 100 is installed in the lower part of the refining tank 100. The brine passing through the refining tank 100 is dropped on the upper surface of the conveyor belt, To a conveyor belt (200) installed on an upper portion of a vertically movable lower support (260, 260 ') so as to be dropped;
Removing the impurities from the impurity removing blade 210 provided on one side of the conveyor belt 200 to collect the impurities in the impurity storage container 220;
Removing the impurities from the impurity removing brush 230 installed on the impurity storage container 250 by the motor 240 on one side of the conveyor belt 200;
Storing the brine passing through the conveyor belt (200) in a water storage tank (300) installed at the lower part of the conveyor belt (200);
Moving from the water storage tank 300 to the plurality of refineries 400 connected to the pump 310 and the valve 410;
The brine introduced into the purifier furnace 400 is continuously evaporated to remove brine containing 25 to 50% by weight of the salt component and 50 to 75% by weight of water at a temperature of 200 to 250 ° C. and a temperature of 100 to 150 ° C. And spray-drying the mixture by a high-temperature spray dryer having a spray rate of the nozzle and a through-hole size of the nozzle adjusted to 0.8 to 1.2 mm in size, thereby producing a crystal of crucifer trihydrate having a particle size of 0.8 to 1.2 mm By weight of a salt of trihydrate.

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