TWI589347B - Natural hot spring powder preparation system and method for preparing natural hot spring powder - Google Patents

Description

Natural hot spring powder preparation system and method for preparing natural hot spring powder

The invention relates to a powder preparation system and a preparation method, in particular to a natural hot spring powder preparation system and a preparation method.

Many hot spring powders or hot spring concentrates on the market are mostly made by blending various mineral powders with sulfur powder. For example, TW 200942496 discloses a hot spring concentrate which is mainly produced by the following method: The components such as lanthanum, aluminum oxide, ferric oxide, titanium oxide, calcium oxide, magnesium oxide, sodium oxide, potassium oxide and trace elements are mixed according to a specific ratio, and then an appropriate amount of sulfur water is added and mixed to form a hot spring concentrated liquid. The so-called "natural" hot spring powder products that are commercially available are produced by drying, solidifying and grinding the soup flowers (precipitates in which some mineral ions in the hot springs are precipitated due to temperature drop or other factors). It is: the above method is because the total dissolved solids (TDS) of the general hot spring water is about 500-2000 ppm. Under the low-concentration solid content, if it is prepared by using the cooking method, it will not be mass-produced and needs to be It consumes a lot of energy and other shortcomings. In addition, the precipitated soup is precipitated from a large amount of mineral elements in the hot spring (such as magnesium, calcium, etc.), and the precipitate does not contain trace elements in the original hot spring (the concentration is too low to reach the ion product). The constant Ksp product value does not precipitate), so it is impossible to restore natural hot spring water 100%. In addition, there are no related equipment on the market for the treatment of natural hot springs or the manufacture of 100% reduced natural hot spring powder.

It can be seen from the above description that the preparation method and equipment of the natural hot spring powder have yet to be developed.

Accordingly, it is an object of the present invention to provide a natural hot spring powder preparation system having low energy consumption and high production efficiency.

Thus, the natural hot spring powder preparation system of the present invention is suitable for treating natural hot spring water, and the preparation system comprises: a heat exchange circulation device, a separation device, a concentration device and a powdering device, wherein the separation device comprises a micron level The filter device and the at least one nano-scale film trap device, and the natural hot spring water are sequentially converted into the natural hot spring powder by the heat exchange cycle device, the separation device, the concentration device, and the powdering device.

The preparation system of the present invention further comprises a working fluid circulation line set, wherein a working fluid is supplied from the heat exchange circulation device to contact the concentration device, and the contacted working fluid is returned to the heat exchange. Circulation device.

In the preparation system of the present invention, the separation apparatus further includes a secondary nano-scale membrane retention device disposed between the micro-scale filtration device and the nano-scale membrane retention device.

In the preparation system of the present invention, the separation apparatus comprises a micron-sized filtration device and two nano-scale membrane retention devices.

In the preparation system of the present invention, the separation apparatus further includes a secondary nano-scale film retention device disposed between the two nanometer-scale film retention devices.

Another object of the present invention is to provide a method for preparing a natural hot spring powder.

The method for preparing a natural hot spring powder of the present invention comprises the following steps: (A) cooling the natural hot spring water to obtain a cooled natural hot spring water; (B) filtering and cooling the cooled natural hot spring water at least once Processing to obtain natural hot spring drinking water and mineral concentrate; (C) concentrating the mineral concentrate to obtain a solid and a secondary concentrate; and (D) pulverizing the secondary concentrate to obtain a natural Spa powder.

In the process of the present invention, a mixing step (E) is further included in which the solid is mixed with the natural hot spring powder to obtain a powder product.

In the method of the present invention, the step (B) is such that the cooled natural hot spring water is filtered through a micron-sized film, followed by entrapment through a nano-scale film.

In the method of the present invention, the step (B) is such that the cooled natural hot spring water is filtered through a micron-sized film, followed by interception by a sub-nano film and a nano-scale film.

In the method of the present invention, the step (B) is to filter the cooled natural hot spring water through a micron-sized film, followed by entrapment through a nano-scale film, a sub-nano film, and a nano-scale film.

The invention has the effect that the preparation system of the invention can pass 100% of the low energy consumption and high production efficiency by sequentially passing the natural hot spring water through the heat exchange circulation device, the separation device, the concentration device and the powdering device. Change to the natural hot spring powder. The natural hot spring powder obtained by the preparation system or the preparation method of the present invention almost completely reduces the natural hot spring 100%, and does not contain a chemical additive.

The invention is further illustrated by the following examples, but it should be understood that this embodiment is intended to be illustrative only and not to be construed as limiting.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same reference numerals.

Referring to Figure 1, a first preferred embodiment of the natural hot spring powder preparation system of the present invention comprises a heat exchange cycle unit 1, a separation unit 2, a concentration unit 3, a powdering unit 4 and a connecting line set 5. The heat exchange cycle device 1 includes a first heat exchange tube 11. The separation device 2 comprises a micron-scale filtration device 21 and a nano-scale membrane retention device 22. The connecting line set 5 comprises a first connecting line 51 for transporting the natural hot spring water from the heat exchange cycle device 1 to the micron-scale filter device 21 of the separating device 2 for passing the micron-sized filter device The natural hot spring water of 21 is sent to the second connecting line 52 of the nano-scale film trapping device 22, and the third connecting pipe for conveying the natural hot spring water passing through the nano-scale film trapping device 22 to the concentrating device 3 The road 53, and a fourth connecting line 54 for conveying the natural hot spring water passing through the concentrating device 3 to the powdering device 4. The natural hot spring water is sequentially converted into the natural hot spring powder by the heat exchange circulation device 1, the separation device 2, the concentration device 3, and the powdering device 4; in more detail, the natural hot spring water is first After entering the first heat exchange tube 11 of the heat exchange cycle device 1, the temperature is lowered to 40 ° C or lower (the temperature can also be lowered to the temperature at which the film material in the subsequent separation device can be loaded), and the natural hot spring water is cooled. The micro-stage filtration device 21 is further introduced into the micro-stage filtration device 21 via the first connection line 51 to filter out suspended impurities to simultaneously avoid clogging of the pipeline, equipment or device. Next, the natural hot spring water passing through the micron-stage filter device 21 enters the nano-scale film trap device 22 via the second connecting line 52 to repeatedly condense the mineral components in the natural hot spring water, and obtain The mineral concentrate and the natural hot spring drinking water; wherein the mineral concentrate will enter the concentrating device 3 through the third connecting line 53 to be concentrated, thereby obtaining a solid S and a secondary concentrated liquid. Finally, the secondary concentrate enters the powdering apparatus 4 via the fourth connecting line 54 and is dried to obtain a natural hot spring powder.

Preferably, the source of the natural hot spring water may be a chloride spring, a bicarbonate spring, a sulfate spring, or other types of hot springs. The natural hot spring water has a total dissolved solids (TDS) range of 500 to 50,000 ppm and a hot spring outcrop temperature of 80 °C or higher.

Preferably, the material of the first heat exchange tube 11 in the heat exchange cycle device 1 may be copper or copper alloy, stainless steel 304 or stainless steel 316, etc., wherein copper or copper alloy has better heat conduction efficiency. The material of the first heat exchange tube 11 can be selected according to the actual use of natural hot spring water under the premise of heat exchange efficiency and avoiding corrosion of the pipeline.

Preferably, the material of the connecting pipe in the connecting pipe group 5 can be the same as the material of the first heat exchange pipe 11, and can also be used according to the actual use under the premise of heat exchange efficiency and avoiding corrosion of the pipeline. Hot spring water is chosen.

Preferably, the micron-sized filter device 21 can be a microfiltration membrane or a hollow fiber membrane (having a pore size ranging from 0.01 micrometer to 1 micrometer), and a coarse membrane membrane group composed of a plastic membrane shell or the like.

Preferably, the nano-scale film trapping device 22 can be a nano-scale filter membrane (a pore size range of 0.4 nm to 2 nm), a metal membrane shell, a pressurizing motor, a high-pressure pipeline, and an intermediate product collecting pipe 221, etc. Composed of. The main function of the nano-scale film trapping device 22 is to repeatedly concentrate the mineral components by using a nano-scale filter membrane according to the concentration of the mineral solid content contained in the natural hot spring water, that is, the mine to be trapped by the film. The concentrated liquid of the substance is repeatedly subjected to a plurality of nano-scale film entrapment and concentration until the concentration of the solid content of the mineral in the concentrated liquid of the mineral is increased from several thousand ppm to several tens of ppm or more. Preferably, the number of the nano-scale film traps 22 can be adjusted according to the concentration of mineral solids contained in the natural hot spring water that is passed.

Preferably, the natural hot spring drinking water can be collected through the intermediate product collection tube 221.

Preferably, the concentrating device 3 is a vacuum steamer device, and may be composed of an air pump, a closed steamer, a heat insulating pipe, and the like. The vacuum cooker apparatus mainly uses an air suction motor to maintain the pressure in the closed steamer at about 0.3 atm, at which time the boiling point of the water can be lowered to about 70 ° C, and the water can be vaporized using lower heat energy. The mineral concentrate entering the vacuum steamer device is cooked at less than 1 atm and below 100 ° C, and can be volatilized efficiently, and concentrated and removed by distillation to remove about 60 to 90% of water. Solid S and secondary concentrate. Preferably, the mineral concentrate is cooked at 0.3 atm and 70 ° C to effectively reduce the energy consumption of the entire system.

Preferably, the powdering device 4 is a spray drying device. The spray drying device can be composed of a spray drying chamber, a liquid material conveying motor and a powder collecting barrel. After the secondary concentrated liquid enters the spray drying device, the secondary concentrated liquid is dispersed and atomized by a spray head, and then the dry air is sent into the spray drying chamber by a pumping motor to generate a cyclonic airflow to be used in the secondary concentrated liquid. The solid-liquid two phases are completely separated, and a natural hot spring powder is obtained.

Preferably, the solid S remaining in the concentrating device 3 can be sent to a drying chamber for drying, and then uniformly mixed and ground with the natural hot spring powder to obtain a powder product which is completely similar to the natural hot spring mineral composition ratio. .

Referring to Figure 2, a second preferred embodiment of the natural hot spring powder preparation system of the present invention comprises substantially the same apparatus as the first preferred embodiment, except that the system further includes a working fluid circulation line set 6 The heat exchange cycle device 1 further includes a second heat exchange tube 12, the separation device 2 further includes a nano-scale film retention device 22, and the connection line group 5 further includes a connection for the two nano-scale films to be intercepted. The fifth connecting line 55 of the device 22.

The working fluid circulation line set 6 is configured to deliver a working fluid (not shown) from the heat exchange cycle device 1 in contact with the concentrating device 3 for heat exchange, and then transport the contacted working fluid back to the heat exchange cycle. Device 1. The working fluid circulation line group 6 includes a first circulation line 61 connected to the second heat exchange tube 12 for conveying the working fluid (gaseous state) from the heat exchange circulation device 1 in contact with the concentration device 3, And a second circulation line 62 for conveying the contacted working fluid (liquid) back to the heat exchange cycle device 1 and to the second heat exchange tube 12. More specifically, the working fluid first passes through the second heat exchange tube 12 of the heat exchange cycle device 1, at which time the natural hot spring water also enters the first heat exchange tube 11 of the heat exchange cycle device 1, through which the first heat is passed. The exchange tube 11 is in contact with the second heat exchange tube 12, and the thermal energy after cooling the natural hot spring water is conducted to the working fluid to vaporize the working fluid. Then, the vaporized working fluid (gaseous state) enters the side wall of the concentrating device 3 through the first circulation line 61, and then enters the inner edge interlayer of the concentrating device 3, and the liquid (mineral material) in the concentrating device 3 The concentrate provides thermal energy to heat the liquid while the vaporized working fluid will also condense into a liquid state. Finally, the condensed liquid working fluid (liquid) will re-enter the second circulating line 62. The heat exchange unit 1 is in the second heat exchange tube 12. By the above-described recycling step, the concentrating device 3 can be made to avoid energy loss and reduce the manufacturing cost of the natural hot spring powder even if a heater is installed to increase the concentration efficiency.

Preferably, the working fluid circulation line group 6 and the second heat exchange tube 12 are made of the same material as the first heat exchange tube 11, and can also be used under the premise of heat exchange efficiency and avoiding corrosion of the pipeline. Select according to the actual working fluid used.

Preferably, the working fluid is selected from a liquid having a high specific heat and a low boiling point, such as ammonia, tetrafluoroethane (R-134a) or the like.

Preferably, the natural hot spring powder preparation system further comprises a motor M positioned between the heat exchange cycle device 1 and the first circulation line 61.

Referring to Figure 3, a third preferred embodiment of the natural hot spring powder preparation system of the present invention comprises substantially the same apparatus as the apparatus of the second preferred embodiment, except that the nanometer is behind the micron-sized filtration unit 21. The stage film trap 22 is replaced by a sub-nano film trap 23 which also includes a natural hot spring water for transporting the nano-scale film trap 23 to the nano-scale. The sixth connecting line 56 of the film trap 22 and the fifth connecting line 55 are for conveying the natural hot spring water passing through the nano film retaining device 23 to the nano film retaining device 22. It should be particularly noted that the natural hot spring water passing through the micron-stage filter device 21 enters the sub-nano-grade film retentate device 23 via the second connecting line 52 and is repeatedly subjected to entrapment and concentration to obtain a mineral liquid and reflux. liquid. Wherein, the mineral liquid having a higher mineral concentration will enter the nano-scale film intercepting device 22 via the fifth connecting line 55 for repeated interception and concentration, and the returning liquid with a relatively rare mineral concentration will pass through the sixth connecting pipe. Road 56 enters the nanoscale membrane retentate 22 for repeated entrapment concentration.

Preferably, the nano-scale film trapping device 23 may comprise a sub-nano film, a metal film shell, a pressurizing motor and a general pipeline. Because the hot spring water with high total dissolved solids TDS, such as marine hot springs (such as Ludao Asahi Hot Spring), is in the mineral interception separation process, it may cause the nanofiltration membrane responsible for intercepting and concentrating due to excessive mineral concentration. Excessive osmotic pressure results in a substantial increase in the operating pressure of the entire nanoscale membrane retentate 22 and the energy consumption of the overall system, even causing damage to the nanoscale membrane. Based on the above factors, in the third preferred embodiment, a sub-nano-grade film trapping device 23 is disposed between the micro-scale filter device 21 and the nano-scale film trap device 22, and the nano-scale film trap device With sub-nanofiltration membrane characteristics, it is possible to selectively retain part of the mineral without excessive osmotic pressure, so that it can be repeatedly concentrated with a lower operating pressure.

The nano-scale film trap 23 is also optionally disposed between two nano-scale film traps 22, such as between the two nano-film traps 22 of the second preferred embodiment.

In FIGS. 1 to 3, the connection position of the connection line group 5 is exemplified, and does not represent the actual connection position. The connection position of the connecting pipe group 5 can be adjusted according to the setting and configuration of the actual device.

The natural hot spring powder preparation system of the invention has the advantages of low energy consumption, high production efficiency, and mass production of hot spring related products which are 100% reduced from natural hot springs, naturally unmodified and without adding any chemicals, such as natural hot spring drinking water. , soup, natural hot spring powder and powder products.

The first preferred embodiment of the method for preparing a natural hot spring powder of the present invention comprises the following steps: (A) cooling the natural hot spring water to below 40 ° C to obtain a cooled natural hot spring water; (B) making the Cooling natural hot spring water is filtered and at least once intercepted to obtain natural hot spring drinking water and mineral concentrate; (C) the mineral concentrate is concentrated to obtain a solid and secondary concentrate; and (D) The secondary concentrate was pulverized to obtain a natural hot spring powder.

Preferably, the source of the natural hot spring water of the step (A) may be a chloride spring, a bicarbonate spring, a sulfate spring, or other types of hot springs. The natural hot spring water has a total dissolved solids (TDS) range of 500 to 50,000 ppm and a hot spring outcrop temperature of 80 °C or higher.

Preferably, the step (A) is to lower the temperature of the natural hot spring water to 30 to 40 °C. When the temperature is higher than 40 ° C, the upper limit of heat resistance of the film of the subsequent separation device 2 may be exceeded. Based on the consideration of avoiding energy consumption, the temperature is preferably not lower than 25 °C.

Preferably, the step (B) is to filter the cooled natural hot spring water through a micron-sized film, and then the filtered natural hot spring water is intercepted and concentrated by a nano-scale film.

Preferably, in the step (B), the cooled natural hot spring water is filtered through a micron-sized film, and then the filtered natural hot spring water is intercepted and concentrated by a sub-nano film to obtain a mineral liquid and The liquid is retained, and then the mineral liquid and the retentate liquid are separately introduced into the nano-scale film for interception and concentration to obtain natural hot spring drinking water and mineral concentrate. The natural hot spring drinking water is available as a drinking water product.

Preferably, the step (B) is to filter the cooled natural hot spring water through a micron-sized film, and then the filtered natural hot spring water passes through a nano-scale film, a sub-nano film and a nano-scale film. Interception.

Preferably, this step (C) is carried out by distillation under reduced pressure. More preferably, the step (C) is carried out at a concentration below 1 atm and below 100 °C. Still more preferably, the step (C) is carried out at 0.3 atm and 70 °C.

Preferably, the method further comprises a mixing step (E) of mixing the solid with the natural hot spring powder to obtain a powder product. More preferably, the solid is first dried (commonly known as soup) and then uniformly mixed and ground with the natural hot spring powder.

The method for preparing natural hot spring powder of the present invention can mass produce hot spring related products which are naturally unmodified and do not contain any chemicals, such as natural hot spring drinking water, soup flower, natural hot spring powder and powder product.

In summary, the natural hot spring powder preparation system of the invention has low energy consumption and high production efficiency, and can mass produce hot spring related products which are 100% reduced by natural hot springs, natural unmodified and without adding any chemicals (such as natural Hot spring drinking water, soup flower, natural hot spring powder and powder product), and the method for preparing natural hot spring powder of the present invention can also achieve the above effects.

However, the above is only the embodiment of the present invention, and the scope of the invention is not limited thereto, and all the equivalent equivalent changes and modifications according to the scope of the patent application and the patent specification of the present invention are still The scope of the invention is covered.

<TABLE border="1" borderColor="#000000" width="_0002"><TBODY><tr><td> 1···························· /td><td> 5················ Connected pipeline group</td></tr><tr><td> 11········ ······ The first heat exchange tube</td><td> 51················································ Td> 12·············· The second heat exchange tube </td><td> 52·············· /td></tr><tr><td> 2················· Separation equipment</td><td> 53··········· ···· Third connecting pipe</td></tr><tr><td> 21···································· ·············· The fourth connecting pipe</td></tr><tr><td> 22····················· Grade film trapping device</td><td> 55································································ ········ Intermediate product collection tube</td><td> 56·········································· <td> 23····· ········· Secondary nano-film trapping device</td><td> 6········································ </tr><tr><td> 3················ Concentrated device</td><td> 61·············· · First circulation pipeline</td></tr><tr><td> 4········································································ ············ The second circulation pipeline</td></tr><tr><td> S················· Solid < /td><td> </td></tr></TBODY></TABLE>

Other features and effects of the present invention will be apparent from the following description of the drawings, wherein: FIG. 1 is a schematic view of a first preferred embodiment of the natural hot spring powder preparation system of the present invention; [FIG. 2 ] is a schematic view of a second preferred embodiment of the natural hot spring powder preparation system of the present invention; and [Fig. 3] is a schematic view of a third preferred embodiment of the natural hot spring powder preparation system of the present invention.

<TABLE border="1" borderColor="#000000" width="_0003"><TBODY><tr><td> 1······························ /td><td> 4································································································· ····· The first heat exchange tube </td><td> 5············································ Td> 2················ Separation equipment</td><td> 51······························ Td></tr><tr><td> 21·············· Micron filter device</td><td> 52············ ··· Second connecting pipe</td></tr><tr><td> 22··················································· 53·············· The third connecting pipe</td></tr><tr><td> 3················ · Concentrator </td><td> 54·················································································· ··········· Solid </td><td> </td></tr></TBODY></TABLE>

Claims (10)

A natural hot spring powder preparation system suitable for treating natural hot spring water, the preparation system comprising: a heat exchange circulation device; a separation device comprising a micrometer filtration device and at least one nanometer film retention device; and a concentration device; A powdering device; wherein the natural hot spring water is sequentially converted into the natural hot spring powder by the heat exchange circulation device, the separation device, the concentration device, and the powdering device. The natural hot spring powder preparation system according to claim 1, further comprising a working fluid circulation line set, wherein a working fluid is supplied from the heat exchange circulation device to contact the concentration device, and the contacted working fluid is transported. Return to the heat exchange cycle device. The natural hot spring powder preparation system of claim 1, wherein the separation apparatus further comprises a secondary nano-scale film retention device disposed between the micro-scale filtration device and the nano-scale film retention device. The natural hot spring powder preparation system according to claim 1, wherein the separation device comprises a micron-sized filtration device and two nano-scale film retention devices. The natural hot spring powder preparation system of claim 4, wherein the separation apparatus further comprises a secondary nano-scale film retention device disposed between the two nanometer-scale film retention devices. A method for preparing a natural hot spring powder comprises the steps of: (A) cooling a natural hot spring water to below 40 ° C to obtain a cooled natural hot spring water; (B) filtering the cooled natural hot spring water and At least one interception treatment to obtain natural hot spring drinking water and mineral concentrate; (C) concentrating the mineral concentrate to obtain a solid and a secondary concentrate; and (D) subjecting the secondary concentrate to powder Naturalized hot spring powder. The method of claim 6, further comprising a mixing step (E) of mixing the solid with the natural hot spring powder to obtain a powder product. The method of claim 6, wherein the step (B) is to filter the cooled natural hot spring water through a micron-sized film, followed by entrapment through a nano-scale film. The method of claim 6, wherein the step (B) is to filter the cooled natural hot spring water through a micron-sized film, followed by a secondary nano-film and a nano-scale film. The method of claim 6, wherein the step (B) is to filter the cooled natural hot spring water through a micron-sized film, and then pass through a nano-scale film, a sub-nano film, and a nano-scale film. Interception.