^75521 經濟部中央標準局員工消費合作社印繁 A7 五、發明説明（1 【發明技術領域】 本發明係、有關於有㈣用_等燃燒機排出的排煙 或水蒸氣的熱，而由海水製造食鹽的方法。 【習知技術】 利用鹽田將海水以日照乾燥法得到的食鹽（自然鹽） 含有充分的舞、鎂、與其他6〇種微量礦物質成分，對人 類的健康有：a ’然而由於海水污染、確保鹽田用地有困難 的因素，其生產量逐年衰退。 亦可採用將海水導入工廠，而使用離子交換樹脂膜 之電氣方法以製造鹽（例如參照特公昭63_27290號），然 而，利用上述製造方法生產的鹽與自然鹽不同，其含有極 $量的上述成分，其中人體營養上最重要的鈣、鎂之含有 量特別地少，所以當作食用用途時比起自然鹽還差。 【發明欲解決的問題】 本發明提供一種品質安定的食鹽製造方法，可有效 利用海產物加工工廠等排出的排煙產生熱、或水蒸氣的 熱，而從海水中容易且經濟地製造含有人體營養上重要的 約、鎂等之自然鹽。 【解決問題的方法】 為了達到上述目的，本發明第1實施形態為，在鍋 爐等燃燒機的排煙管路途中設置旋轉滾筒型乾燥機，並且 檢測出該乾燥機的溫度，而依據檢測出的溫度調整流量， 以將海水滴落或塗佈於旋轉的滾筒本體，然後使水分蒸 發’並剝離取得附著於滾筒本體外表面的鹽分。 本纸張尺度賴 (請先閱讀背面之注意事項再填寫本頁) * 、11 -線一 575521 經濟部中央標準局負工消費合作社印繁 A7 五、發明説明（2 ) 例如，沿岸許多地方的海產物加工工廠大都設有鍋 爐等燃燒機，而燃燒機的排煙導管外表面大約為1〇〇t： 以上的高溫，其具有龐大的熱量，而至今上述熱量卻幾乎 沒有被利用。在上述工廠中，利用既有的設備，於排煙管 ，途中設置旋轉滾筒型乾燥機，再導入附近的海水則可簡 單又經濟地實施本發明。並且，本發明不限於此，可廣泛 地利用其他排煙的熱。 〃 再者，本發明的帛2實施形態為，送入水蒸氣於旋 轉滾筒型乾燥機内，以當作加熱媒體，並且將海水滴落或 塗佈於該乾燥機之旋轉滾筒本體的外表面，使水分蒸發， 並控制附著於滾筒本體外表面之鹽分於適當的乾燥 ^將述鹽分剝離，而投人具有水蒸氣#作加熱媒體的 瘵氣乾燥式攪拌運送機，並且一邊攪拌一邊搬送地使其乾 燥。 八 条氣乾燥式攪拌運送機，是將水蒸氣送入導水管周 壁的中空内部，並且利用騎移行葉片將送入導水管内的 鹽分一邊攪拌，一邊搬送。 海產物加工工廠大都有設置水蒸氣產生源設備，如 上所述的情況，使用既有之水蒸氣產生源，可從海水簡單 且經濟地製造錢。再者，對於新設水蒸氣產生源的情 況亦各易使用水蒸氣，而且，從旋轉滾筒型乾燥機排出 的南溫放流水，可循環使用於水蒸氣產生源，所以製鹽成 本低廉。 為了使第1及第2形態的處理效率提高，利用橫長^ 75521 Employees' Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs, India and India A7 V. Description of the invention (1 [Technical Field of the Invention] The present invention relates to the heat of exhaust smoke or water vapor emitted by burners such as __. Method for making table salt. [Knowledge technology] The table salt (natural salt) obtained by drying seawater in sunlight using salt field (natural salt) contains sufficient Mai, magnesium, and other 60 kinds of trace mineral components. It has the following to human health: a ' However, due to seawater pollution and difficulties in securing land for salt fields, its production volume has been declining year by year. Electric methods of introducing seawater into factories and using ion exchange resin membranes to produce salt can also be used (for example, refer to Japanese Patent Publication No. 63_27290). However, The salt produced by the above manufacturing method is different from natural salt. It contains extremely large amounts of the above-mentioned ingredients. Among them, the most important nutritional content of calcium and magnesium is very small. Therefore, it is worse than natural salt when used as food. [Problems to be Solved by the Invention] The present invention provides a stable quality salt manufacturing method, which can effectively utilize seafood processing plants, etc. The emitted smoke generates heat or heat of water vapor, and it is easy and economical to produce natural salts containing seawater, magnesium, etc. which are important for human nutrition from seawater. [Solution to Problem] In order to achieve the above object, the first aspect of the present invention According to one embodiment, a rotary drum-type dryer is installed in the middle of the exhaust pipe of a burner such as a boiler, and the temperature of the dryer is detected, and the flow rate is adjusted according to the detected temperature, so as to drop or coat the sea water droplets. Rotate the drum body, then evaporate the moisture and peel off to obtain the salt attached to the outer surface of the drum body. The paper size depends on (please read the precautions on the back before filling this page) *, 11-line 1 575521 Central Ministry of Economic Affairs Standards Bureau, Consumer Cooperatives, India Fan A7 V. Invention Description (2) For example, most seafood processing plants along the coast are equipped with burners such as boilers, and the outer surface of the exhaust duct of the burner is about 100t: The above high temperature has a huge amount of heat, but so far the heat has not been used. In the above factories, the existing equipment is used in the exhaust pipe, the way A rotary drum-type dryer is installed in the center, and the present invention can be implemented simply and economically by re-introducing nearby seawater. Furthermore, the present invention is not limited to this, and other heat of exhausting smoke can be widely used. 〃 Furthermore, 帛 2 of the present invention In an embodiment, water vapor is sent into a rotary drum type dryer as a heating medium, and sea water is dropped or coated on the outer surface of the rotary drum body of the dryer to evaporate moisture and control the adhesion to the drum. The salt on the outer surface of the body is dried properly. The salt is peeled off, and it is put into a radon-drying conveyor with water vapor # as a heating medium, and dried while being transported while stirring. The machine sends water vapor into the hollow interior of the aqueduct's peripheral wall, and uses the moving blades to move the salt into the aqueduct while stirring. Most seafood processing plants have water vapor generating source equipment, as described above. In some cases, money can be produced simply and economically from seawater using an existing water vapor generation source. In addition, it is easy to use water vapor for new water vapor generation sources. Furthermore, the south temperature release water discharged from the rotary drum dryer can be recycled to the water vapor generation source, so the cost of salt production is low. In order to improve the processing efficiency of the first and second aspects, the horizontal length is used.
本紙張尺度適财_ _巧準（CNS ) A4規格（27^297公楚J ---------1 (請先閱讀背面之注意事項再填寫本頁) ――丁 • 、-口 ·—線 575521 A7 五、發明説明（3 ) --~~ 的滾同本體’且沿者其外表面卜立 μ 衣甶上α卩滴洛或塗佈海水，铁後 伴隨著滾筒本體的旋轉，在滾筒太科#絲士人 土 牡展R本體旋轉方向，遠離滴落 或塗佈位置之處，以剝離機剝離鹽分。而且，上述海水是 經由過濾且預熱之後，滴落或塗佈於滚筒本體的外表面。 以蒸氣回收器回收使滾筒本體上方蒸發的排出基氣 不含鹽分，並且，利用以海水當作冷媒的冷卻器，進行冷 卻而將海水變成淡水。 【發明之實施形態】 其次，利用圖式以詳細說明本發明的實施形態。 第1圖及第2圖顯示本發明的第i實施形態。第工 圖顯示，在海產物加工工廠等處，通常是利用排煙導管2 而從煙囱3將鍋爐等燃燒機丨的排煙排出屋外，而上述情 況，中間存在一旋轉滾筒型乾燥機4，使排煙導管2變成 水平，且藉由通過旋轉滾筒型乾燥機4的橫長圓筒形的滾 筒本體5而從煙_ 3排出燃燒機丨的排煙，以將滾筒本體 5加熱。 旋轉滾筒型乾燥機4的滾筒本體5兩端，是由排煙 導管2途中的軸承6可自由旋轉地支撐著，且藉由在設置 經濟部中央標率局員工消費合作社印繁 (請先閱讀背面之注意事項再填寫本頁) 線 於滾筒本體5 —端外周的平環鏈7,與馬達8旁的平環鏈 9之間掛上鏈條1〇，使滾筒本體5可利用馬達8往箭頭方 向旋轉驅動。 另一方面，利用海水泵11從海中抽取海水，然後以 過濾、貯槽12過濾的同時，利用預熱貯槽丨3加以預熱，接 著’利用送水泵14將海水通過海水導入管線1 5導入乾燥 -6 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐 575521 A7 B7 五、發明説明（4 ) 預熱貯槽13的熱源’例如可使用燃燒機㈣煙的一 °丨刀、或從工廠内排出的.溫水等產生的熱。 周邊二第1圖及第2圖所示，在乾燥機4的滚筒本體5 體^具有一橫長的海水滴落或塗佈器Μ，其與滾筒本 ==線平行地配置著。上述海水滴落或塗佈器Μ，滴 上^佈以送水泵14送出的海水於滾筒本❸的外表面 所Μ滴落時’是使用例如在管設置複數個小孔的 而當塗佈時’是使用例如在管的溝槽設置耐熱性浸 =才，而且將上述浸调材摺接於滾筒本體5的外表 落或塗佈的海水量，隨著乾燥機4表面溫度自動調 以可在滚筒本體5外周排煙人口或其㈣配置溫度 二V:精由上述溫度感測器17的訊號，可經由反相 :控制达水泵14。並且，溫度感測器17的設置位置， 哭二於隹上返情況，然而最好是設置於不受海水滴落或塗佈 :+進仃海水的滴落或塗佈，而降低溫度的影響之位置。 滴洛或塗佈於滾筒本體5外表面的海水，因為 ^熱的關係、’其水分蒸發，鹽分會附著於滾筒本體5的 、面。而且為了剝離附著的鹽分，故在滾 M漓部中央標準局負工消費合作社印來 ----------ΦΙ. (請先閱讀背面之注意事項再填寫本頁j 線# ::::橫r剝離器19。為了™能蒸發： 的二刀’最好將上述剝離器19配置於面對滾筒本體5 、疋轉方向，而儘可能遠離滴落或塗佈的位置。 如以上的設備之中，利用海水泵11從海中抽出的海 ^ ’可在過渡貯槽12進行過濾，並在預熱貯槽13進行預 …、。然後’隨著乾燥機4的溫度可自動調整流量(若溫度 ㈣張尺麯财關 575521 A7 B7 五、發明説明（ 憂低’則流量變少，·若、田 ^ 或塗佈於旋轉的滾筒本體量變多），而滴落 分蒸發而藉由蒸氣回收器2〇回：，。=筒本體5上，水 體5的外表面，並在滾筒本體5上二^於滾筒本 19將鹽分剝離，而茨/碑Α、、 ”…、、後错由剝離器 製處理部精製成食鹽。4運送機23之中，接著，在精 2。的排二:當作冷媒，且進入⑽收器 =出条軋被冷部而成為淡水而被回收。 错由上述方法’可從1000Kg日本國北海道北 义市ΐ中’得到35Kg的食鹽。第3圖顯示將其成分:目 刖市售精製鹽的比較。 风刀/、目 &其次’參照第3、4、5圖以說明本發明的第2實施形 恶0 經滴部中央標準局員工消費合作社印掣 第4圖之中，海水泵1卜過濾貯槽12、預熱貯槽13、 辽K泵14、海水導入管線15、海水滴落或塗佈器μ、剝 離器19、蒸氣回收器2〇、以及冷卻器21皆與第i圖所示 的例子相同，然而，第2實施形態使用水蒸氣當作加熱媒 體，以取代第1實施例的排煙，水蒸氣是利用圖未顯示的 水蒸氣產生裝置將水蒸氣送入旋轉滾筒型乾燥機4的滾筒 本體5之中。 由於水蒸氣的溫度略為一定，所以第4圖的例子中， 可省略用以調整海水流量的溫度感測器17、反相器18、 以及送水泵14，然而，若與第1圖相同，應用溫度變化的 -8 - 本紙張尺度適用中國國家標隼（CNS ) A4規格（210X 297公釐） 575521 A7 ___ __ B7 五、發明説明（6 ) -~' 檢測而調整流量的方法當然也可以。 士送入滾筒本體5中以使用於海水乾燥的水蒸氣可經 由凝氣閥25而排出放流水。 第4圖的例子，利用剝離器19以剝離附著於滾筒本 體5外表面的鹽分，可被投人配置於旋轉滚筒型乾燥機* 下方的蒸氣乾燥式授拌運送機26之内，且在上述蒸氣乾 燥式攪拌運送機26内-邊授拌，一邊乾燥’而搬移往精 製處理部。鹽分亦可在滚筒本體5的外周面乾燥，然而過 度乾燥的結果’導致鹽分與蒸氣同時浮上，而使蒸氣回收 f 2〇與冷卻器21之淡水化性能降低，戶斤卩適度控制在滾 筒本體5外周面上的鹽分乾燥，再於蒸氣乾燥式授摔運送 機26進行充分的乾燥。 第5圖以及第6圖顯示蒸氣乾燥式攪拌運送機％的 構成例。上述蒸氣乾燥式攪拌運送機26是使剖面半圓形 的導水管27周壁變成中空，然後，與滾筒本體5内相同， 從水瘵氣產生裝置送入水蒸氣，送入水蒸氣。導水管27 的内側裝設有複數個攪拌移行葉片28，同時裝設有丨根可 轉動的旋轉軸29。 經濟部中央標率局員工消費合作社印製 (請先閲讀背面之注意事項再填寫本頁} 因此，從滾筒本體5外周面剝離而落於導水管27内 的鹽分，可利用攪拌移行葉片28 一邊攪拌，一邊搬送， 然後利用送入導水管27周壁中空内部的水蒸氣，進行加 熱乾燥。並且，預熱貯槽13的熱源亦可使用水蒸氣。 【發明效果】 ^ / 若根據申請專利範圍第丨項所述的發明，可有效利 本紙張尺度適用中國國家標率（CNS ) A4規格） A7 經濟部中央標準局員工消費合作社印^This paper is suitable for size _ _ Qiao Zhuan (CNS) A4 size (27 ^ 297 Gong Chu J --------- 1 (Please read the precautions on the back before filling out this page)-Ding,,- Mouth · —line 575521 A7 V. Description of the invention (3)-~~ The roll is the same as the main body ', and the outer surface of the roller is defined by μ μ α-diro or coated with seawater on the clothes. Rotate, remove the salt with a peeler in the rotation direction of the roller Taike # 丝士 人 土木 展 R body away from the dripping or coating position. In addition, the seawater is dripped or coated after filtering and preheating It is placed on the outer surface of the drum body. The exhausted base gas that evaporates above the drum body is recovered by a steam recoverer without salt, and it is cooled by using a cooler using seawater as a refrigerant to change the seawater into fresh water. [Form] Next, the embodiment of the present invention will be described in detail using drawings. Figs. 1 and 2 show the i-th embodiment of the present invention. Fig. 1 shows that in a seafood processing factory, smoke exhaust is usually used. Duct 2 and exhaust smoke from a boiler, such as a boiler, from the chimney 3 Outside the house, and in the above case, there is a rotary drum-type dryer 4 in the middle, so that the smoke exhaust duct 2 becomes horizontal, and the smoke_3 is exhausted and combusted by the horizontally long cylindrical drum body 5 of the rotary drum-type dryer 4 The machine extracts smoke to heat the drum body 5. Both ends of the drum body 5 of the rotary drum type dryer 4 are rotatably supported by bearings 6 on the way of the smoke exhaust duct 2 and are provided by the Ministry of Economic Affairs. Central Standards Bureau staff consumer cooperative printed by India (please read the precautions on the back before filling in this page). Hang the chain between the flat ring chain 7 at the outer periphery of the drum body 5 and the flat ring chain 9 next to the motor 8. 10, so that the drum body 5 can be driven to rotate in the direction of the arrow by the motor 8. On the other hand, the seawater pump 11 is used to extract seawater from the sea, and then filtered by the filtering and storage tank 12 while preheating with the preheating storage tank 丨 3. Then 'use the water pump 14 to introduce the seawater through the seawater introduction pipeline 1 5 into the dry -6 This paper size applies Chinese National Standard (CNS) A4 specifications (210X297 mm 575521 A7 B7 V. Description of the invention (4) Preheating the heat of the storage tank 13 'For example, a one-degree knife that burns smoke from a burner, or heat generated by warm water, etc. exhausted from a factory. The peripheral body 2 is shown in Figures 1 and 2 on the drum body 5 of the dryer 4 ^ It has a horizontally long sea water drop or applicator M, which is arranged parallel to the line of the roller. The above sea water drop or applicator M is dropped on the cloth and the seawater sent by the water pump 14 is placed on the drum. When the outer surface of ❸ is dropped, for example, a plurality of small holes are provided in a tube, and when coated, for example, when a heat-resistant dip is provided in a groove of the tube, and the dip adjustment material is folded. The amount of seawater dropped or coated on the surface of the drum body 5 is automatically adjusted with the surface temperature of the dryer 4 so that the smoke exhaust population or its temperature can be arranged on the periphery of the drum body 5. The signal can be controlled by the reverse phase: the pump 14 is controlled. In addition, the installation position of the temperature sensor 17 is better than the case of back and forth, but it is best to be installed so as not to be affected by the drop or coating of sea water: Its location. Because of the thermal relationship and the evaporation of the water in Diluo or seawater coated on the outer surface of the drum body 5, salt will adhere to the surface of the drum body 5. And in order to peel off the attached salt, it is printed in the Consumer Standards Cooperative of the Central Standards Bureau of the Ministry of Rolling and Rolling Co., Ltd. -------- ΦΙ. (Please read the precautions on the back before filling in this page j 线 #: ::: Horizontal r peeler 19. In order to ™ evaporate: Two blades' It is best to arrange the above-mentioned peeler 19 in a direction facing the drum body 5 and turning direction, as far as possible from the position of dripping or coating. Among the above equipment, the sea pumped from the sea by the seawater pump 11 can be filtered in the transition storage tank 12 and pre-heated in the storage tank 13. Then, the flow rate can be automatically adjusted with the temperature of the dryer 4 ( If the temperature is ㈣ Zhangchiqucaiguanguan 575521 A7 B7 V. Description of the invention (worrying low, the flow will be less, if, the field or the volume applied to the rotating drum body will be increased), and the drip will evaporate and the steam will pass through Recoverer 20 times :, == the outer surface of the water body 5 on the cylinder body 5 and the drum body 5 to remove the salt from the drum body 19, and the plaques / monuments A ,, "...," Stripper processing section is refined into salt. 4 in the conveyor 23, and then in the second row of row 2: as a refrigerant And enter the harvester = the bar is rolled into the cold part to become fresh water and recovered. By the above method, 35Kg of table salt can be obtained from 1000Kg of Hokkaido, Hokkaido, Hokkaido, Japan. Figure 3 shows the composition: mesh比较 Comparison of refined salt sold in the market. Air knife / mesh & Secondly, refer to Figures 3, 4, and 5 to illustrate the second embodiment of the present invention. Among them, the seawater pump 1 includes the filter storage tank 12, the preheating storage tank 13, the Liao K pump 14, the seawater introduction line 15, the sea water drop or applicator μ, the stripper 19, the steam recovery device 20, and the cooler 21. It is the same as the example shown in Fig. I. However, the second embodiment uses water vapor as a heating medium to replace the smoke exhaust of the first embodiment. The water vapor is sent by a water vapor generating device (not shown). Into the drum body 5 of the rotary drum-type dryer 4. Since the temperature of the water vapor is slightly constant, the temperature sensor 17, the inverter 18, and Water pump 14, however, if it is the same as in FIG. 1, the application Temperature change -8-This paper size applies Chinese National Standard (CNS) A4 specification (210X 297 mm) 575521 A7 ___ __ B7 V. Description of the invention (6)-~ 'Of course, the method of adjusting and detecting the flow is also possible. The water vapor sent to the drum body 5 for drying the seawater can be discharged through the condensing valve 25. In the example shown in FIG. 4, the stripper 19 is used to peel off the salt attached to the outer surface of the drum body 5, which can be removed by The operator is placed in the steam-drying mixing conveyor 26 below the rotary drum-type dryer *, and in the steam-drying mixing conveyor 26 described above, it is transferred to the refining processing section while being dried while being kneaded. Salt can also be dried on the outer peripheral surface of the drum body 5. However, as a result of excessive drying, the salt and steam float at the same time, and the desalination performance of the steam recovery f 20 and the cooler 21 is reduced, and the household weight is appropriately controlled in the drum body. 5 The salt on the outer peripheral surface is dried, and then fully dried in a steam drying drop conveyor 26. Figures 5 and 6 show examples of the configuration of the steam-drying type stirring conveyor%. The above-mentioned steam-drying type stirring conveyor 26 hollows the peripheral wall of the water guide pipe 27 having a semi-circular cross-section, and then, as in the drum body 5, sends water vapor from the hydrogas generating device, and then sends water vapor. A plurality of stirring and moving blades 28 are installed on the inner side of the water guide tube 27, and a rotatable rotating shaft 29 is also installed. Printed by the Employees' Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs (please read the precautions on the back before filling in this page). Therefore, the salt that is peeled from the outer surface of the drum body 5 and falls in the aqueduct 27 can be stirred by moving the blade 28. While stirring, carry it, and then use the water vapor sent into the hollow wall of the 27 wall of the aqueduct to heat and dry it. In addition, the heat source of the preheating storage tank 13 can also use water vapor. [Inventive effect] ^ / According to the scope of patent application No. 丨The invention described in item can effectively use this paper size to apply China National Standards (CNS) A4 specifications) A7 Printed by the Consumers' Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs ^
575521 經濟部中央標準局員工消費合作社印製 kl -—一 _B7 五、發明説明（8 ) 熱之後，滴落或塗佈於滾筒本體的外表面，可提高處理效 率0 若根據申請專利範圍第6項的發明，利用蒸發回收 為回收在滾筒本體上方蒸發的蒸氣，並且利用以海水當作 冷媒的冷卻器使其冷卻，所以亦可高效率地進行製鹽副產 物的海水淡化。 【圖式之簡單說明】： 第1圖為本發明第1實施形態的系統構成圖。 第2圖為顯示相對於滾筒本體，海水滴落或塗佈器 與剝離器與漏斗與螺旋運送機的配置關係圖。 第3圖為第1實施形態得到的食鹽與目前市售精製 鹽之成分比較圖。 第4圖為本發明第2實施形態的系統構成圖。 第5圖為第2實施形態使用的蒸氣乾燥式攪拌運送 機的上視圖。 第6圖為第5圖之剖面圖。 【符號之說明】 1 鍋爐等燃燒機 2 排煙導管 3 煙囪 · 4 旋轉滾筒型乾燥機 5 滾筒本體 6 軸承 7 平環鏈（sprocket chain) -1 1 - 本紙張尺度適用中國國家標準（CNS ) A4規格（21〇X 297公釐) ^^ II ——— — — It (請先閱讀背面之注意事項再填寫本頁} 、一^1 線_--- 575521 經漪部中央標準局員工消費合作社印^ A7 B7 五、發明説明（9 ) 8 馬達 9 平環鏈 10 鏈條 11 海水泵 12 過濾貯槽 13 預熱貯槽 14 送水泵 15 海水導入管線 16 海水滴落或塗佈器 17 溫度感測器 18 反相器 19 剝離器 20 蒸氣回收器 21 冷卻器 22 漏斗 23 螺旋運送機 24 冷卻管 25 凝氣閥 26 蒸氣乾燥式攪拌運送機 27 導水管 28 攪拌移行葉片 29 旋轉軸 (請先閲讀背面之注意事項再填寫本頁) -12 - 本紙張尺度適用中國國家標準（CNS ) A4規格（210X 297公釐）575521 Printed by the Consumer Cooperative of the Central Bureau of Standards, Ministry of Economic Affairs, KL --- _B7 V. Description of the invention (8) After heating, dripping or coating on the outer surface of the drum body can improve the processing efficiency. According to the six inventions, evaporation is used to recover the vapor evaporated above the drum body and to cool it with a cooler using seawater as a refrigerant, so that seawater desalination by-products can also be desalinated efficiently. [Brief description of the drawings]: Fig. 1 is a system configuration diagram of the first embodiment of the present invention. Fig. 2 is a view showing the arrangement relationship between a seawater drop or an applicator, a peeler, a hopper, and a screw conveyor relative to the drum body. Fig. 3 is a comparison diagram of the components of the table salt obtained in the first embodiment and the commercially available refined salt. Fig. 4 is a system configuration diagram according to a second embodiment of the present invention. Fig. 5 is a top view of a steam-drying type stirring conveyor used in the second embodiment. Figure 6 is a sectional view of Figure 5. [Explanation of Symbols] 1 Burner such as boiler 2 Exhaust duct 3 Chimney · 4 Rotary drum dryer 5 Drum body 6 Bearing 7 Sprocket chain -1 1-This paper standard is applicable to Chinese National Standard (CNS) A4 specification (21〇X 297mm) ^^ II ——— — — It (Please read the notes on the back before filling out this page} 、 1 ^ 1 Line _--- 575521 Employees of the Central Standards Bureau of the Ministry of Economic Affairs Cooperative cooperative seal ^ A7 B7 V. Description of the invention (9) 8 Motor 9 Flat chain 10 Chain 11 Seawater pump 12 Filter tank 13 Preheating tank 14 Water pump 15 Seawater introduction line 16 Water drop or coater 17 Temperature sensor 18 Inverter 19 Stripper 20 Steam recovery unit 21 Cooler 22 Funnel 23 Screw conveyor 24 Cooling tube 25 Condensate valve 26 Steam drying stirring conveyor 27 Water guide tube 28 Stirring moving blade 29 Rotary shaft (please read the Please fill in this page again for attention) -12-This paper size is applicable to China National Standard (CNS) A4 specification (210X 297mm)