201241188 六、發明說明： 【發明所屬之技術領域】 【0001】 本發明係關於一種稀土類磁石類之回收方法。 【先前技術】 [0002] ^屬(rare metal)或稀土(rare earth)，係廣泛使甩於 ί腦周邊設備、電子設備、汽車、醫療設鮮。特別^ :=(錢)或Dy(鏑)等稀土類的稀土類磁石合金等之稀 並用於發電機等馬達'硬碟用的致動器； [0003] [0004] 【0005】 稀土 ί zs壓S轉機二含有高性能 3脂等固著來朗時，藉由徒手^或類 來將固著於稀土類磁石類的樹脂除去，收，碎等g ，當困難。徒手操作或機械性解體時：：稀土類磁石 脂漂亮地分離，若粉碎制難以與鐵等麻歡難以將樹 iT' 3 201241188 【0006】 作為至此所提及的回收技術，則有專利文獻1所記載的技術。 專利文獻1所記載的技術，係從稀土類磁石的磁石加工步驟中所 產生的廢料或殘渣中回收稀土類元素之技術。 [習知技術文獻] [專利文獻] 【0007】 專利文獻1 :日本特開2002-60863號公報 【發明内容】 [發明所欲解決的問題] 【0008】 然而，此回收技術，係以所回收的稀土類磁石的廢料或 素隨技術。洗衣機或冷氣機轉品中所 S3 Ϊ磁石Ϊ’在該家電製品單體中為數％左右，故為了回201241188 VI. Description of the Invention: [Technical Field of the Invention] [0001] The present invention relates to a method for recovering rare earth magnets. [Prior Art] [0002] The genus (rare metal) or rare earth (rare earth) is widely used in peripheral equipment, electronic equipment, automobiles, and medical equipment. Special ^ : = (money) or Dy (镝) rare earth magnets such as rare earth magnets, etc., are used for motors such as generators for hard disk drives; [0003] [0005] [0005] rare earth ί zs When the pressure S-transfer machine 2 contains a high-performance 3 resin or the like, it is difficult to remove the resin fixed to the rare earth magnet by hand or by the like. When it is handled by hand or mechanically disintegrated: The rare earth magnetite is beautifully separated, and if it is difficult to be pulverized, it is difficult to make the tree iT' 3 201241188 [0006] As the recycling technique mentioned so far, there is Patent Document 1 The technology described. The technique described in Patent Document 1 is a technique for recovering rare earth elements from waste or residue generated in a magnet processing step of a rare earth magnet. [Patent Document] [Patent Document 1] Patent Document 1: JP-A-2002-60863 [Draft] [Problems to be Solved by the Invention] [0008] However, this recycling technique is based on recycling. The scrap or element of the rare earth magnets follows the technology. In the washing machine or the air conditioner, the S3 Ϊ magnet Ϊ ' is about a few percent in the household appliance, so in order to return
、百，必須從豕電製品的框體即塑膠或鋼板中選 擇性地回收稀土麵石類。 训板K 【0009】 又 須從稀土類磁石類中除去^者4卿曰成一體化之狀態時，必 【0010】 磁石類ίΐί收5J於情事所完成’目的在於提供-種稀土類 的製以已除麵以敎㈣土類磁石類 之技術手段] 的稀i類磁石，本發明係—種從含有與樹脂成-體化 含：對與土綱石類之方法；其特徵為包 战肢化的稀土類磁石類進行熱 201241188 分解、剥離，來回收該稀土類磁石類之步 【0012】 P 係—種從含有與樹脂成—體化的稀土類磁石類的 磁石類之方法；其特徵為包含：⑻將該製品解 ί與娜成—體化的稀土類磁賴之轉；以及⑻對已 r3 一體化的稀土類磁石類進行熱水處理，將該樹 月曰刀，、剥離，來回收該稀土類磁石類之步驟。 【0013】 體化 以納f可透過熱水的收納體^如網曰格狀收朝 解槽，在該分解槽_該娜旨成一體化 出，π兮仃…水處理之後，將該收納體從該分解槽中取 =内體中回收該稀土類磁石類。 又 驗金屬鹽該稀域磁石類之时綠巾，縣水處_水宜含有 [對照先前技術之功效] 【0015】 品中靡石類的製 【實施方式】 [實施發明之最佳態樣] 【0017】 本發明，如上所述，係—Α 磁石類的製品中回收稀土類樹脂成一體化的稀土類 【0018】 、蝴疋万法。 品，如可舉出洗衣機或冷氣機等家電製 特別限定。例稀土類磁石類的製品’並無 电恥周邊设備、電子設備、通信設備、汽 201241188 含使用過的製品等廢棄=為本發明之對象製品。該等製品，包 【0019】 金，還有稀金屬等稀類金屬以及含有該稀土類金屬之合 [0020] 丹脂成—體化的稀土類磁石類，係指稀土類磁石，為 ;體化。==磁1土類磁石類係以粉末或成形體與樹脂體 攄太方、㈣義以成雜與樹脂體成—體化時，根 據本；吏稀土類磁石類維持成形體而回收之。 脂/ f可舉ώ例如補和聚議旨或縣樹料熱硬化性 ’樹脂中，亦可含有雜或乂 航㈣、或玻顧轉無機物、或其他成分。 ㈣=為ί此種樹脂成—體化的稀土類磁石類，想到有製品的構 的制零件之構成構件。例如’當成為回收對象 類，石類，係構成該家電製品的馬達之轉子的構 才製f為馬達時’與樹脂成一體化的稀土類磁石類，係 馬達之轉子的構成構件。當製品為轉子時，與樹脂成-體 =稀土綱石類轉子賴成構件。轉子，係例如由稀 成;負磁石的成形體以及鐵框以熱硬化性樹脂進行成形加工等所構 【0023】 订入如，^作為構成構件的樹脂成一體化的稀土類磁石類中，亦 可3有樹脂或稀土類磁石類以外的構件，例如鐵、銅等金屬構件、 201241188 碳纖維等無機構件、有機構件等。 【0024】 理日f二係對與樹脂成一體化的稀土類磁石類進行執欢卢 製1體離來回收稀土類磁石類。該熱水處理可ί m 村將^賴而職龍品進行之 水處3程磁石f回收之流程圖以及圖2的熱 靖蝴馳㈣恤叙—實施^ 例如本本，。 2)，而區分成：含有與樹脂成—體 件單 磁石=5以及其他零稀土類 來進行分類。 午將其他部位作為其他零件類 【0028】 可將，藉此 以上的解體作業亦可以徒手操 握含稀土類磁石類零件或含有稀 由製品的特性來掌 何處’因此可容易選擇性地回收含、=_部位存在於製品的 類磁石類的部位。另外，解體作掌中蝻磁石類零件或含有稀土 [0030] ^ ，不進行破碎或粉碎等處理。 201241188 域土類简零件中所含的稀 【0031】 已回_含稀土 _石_件進行熱水處理。 類愛，首先如® 2卿’將已时的含稀土類磁石 土類磁石類零件20直接投入分解槽工來 雖 ir ^ ^ 如寺構件取出且效率良好，因而為較佳的。 【0033】 網格狀收納體10，可使水浸入其内部，只要具不八 ίϊΐί'Ϊ: 2〇進行熱水處理後所殘留的稀土類磁石類3〇1構 構造，可採用例如上方開放的籠狀構造。 的王體 【0034】 由mUi； ^有蓋部8 _力綠，宜具有使蓋部8快速自 等戶，日本工業標準） 開閉’但在可巧ϊ栓鎖緊方式使蓋部8 速蓋開閉機構使蓋部8 _ : 右考慮勒作性則宜藉由快 【0035】 熱水處理，係由下述的流程來進行之。 水槽2的水’係由泵浦3所加壓’在熱交換哭回 二，，自芭 換，且受到加熱，而加-熱水供給至分解槽、1 : 订，父 ^SΪ進稀土類磁石類零件2G的熱水處理。i分 排出的熱水’係與從儲水槽2供給至分糾 ，槽1 且受到冷卻，或在熱交換器5與冷水進行‘換二'，並 通過勤調整閥6而_。.所減_水有_含有有機 201241188 物’故在水循環排水設備7施以將有機物或無機物去除等水處理， 而且大部分的水供給至儲水槽2來循環使用，一部分則排出。當 儲水槽2内的水不足時，從外部適當地補充水。 田 【0036】 供給至分解槽1的加壓熱水，係例如加熱至18〇艺~35〇。 之液體狀態的水，呈次臨界狀II。動，侧如2七 【0037】 熱水處理，雖可使加壓熱水持續流通至分解槽1内來進行之， 但亦可在流通-定時間之後，停止供應 頒磁石類零件20中的樹脂所必要的埶源係^ 故分解槽1錢絕齡Β。 雜岐加水所供給， 【0038】 的水又係進行之。儲水槽2 壓至既糾勤，趙时設於水，，加 熱媒來加熱至既定的溫度。分解槽1内係以°18〇。^ 35〇。^循^之 度並以次臨界狀能進；^+ + '、 C〜350 c的反應溫 【0039】 稀類磁石轉件2G的熱水處理。 土類磁石類剥離，或一部分溶解於=月曰=子夏化，樹脂自稀 中除去’使稀土類磁石類分離即土類磁石類 脂以及黏接劑自㈣_石 ^巧制陳能消失，將樹 中含有鐵等金屬構件或碳纖維=盖^稀土類磁石類零件20 樹脂中分離。又，亦可使稀磁，亦可使該等零件自 【0040】 麵石部分消磁。 此種熱水處理，宜由含有 的加壓熱水所構成。由於含有 疏、或氫氧化卸等驗金屬鹽Hundreds, it is necessary to selectively recover rare earth stone from the frame of the electrical product, that is, plastic or steel. Training board K [0009] In addition to the removal of the rare earth magnets, the state of the 4th 曰 曰 一体化 , , 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 The invention relates to a rare i-type magnet which has been removed from the surface by a technical means of 土(4) earth-like magnets. The invention is a method for forming a mixture with a resin and a pair of earth-like stones; The step of recovering the rare earth magnets by the extruding rare earth magnets 201241188, and the method of recovering the rare earth magnets [0012] P system - a method of containing magnets of rare earth magnets which are formed into a body with a resin; The characteristics include: (8) resolving the product and resolving the rare earth magnets; and (8) performing hot water treatment on the r3 integrated rare earth magnets, and stripping the tree To recover the rare earth magnets. [0013] The storage body of the nano-f, which can pass through the hot water, is smashed into a sump, and the sputum is integrated into the sputum, and after π 兮仃 water treatment, the storage is carried out. The body recovers the rare earth magnets from the decomposition tank. Also, when the metal salt is used, the green towel of the rare earth magnet type, the county water area _ water should contain [control according to the prior art] [0015] the product of the meteorite in the product [embodiment] [the best aspect of the invention [0017] According to the present invention, as described above, a rare earth resin is obtained by recycling a rare earth resin into a product of a magnetite type [0018]. For example, household appliances such as washing machines and air conditioners are particularly limited. Examples of rare earth magnets' products are not waste shame peripheral equipment, electronic equipment, communication equipment, and steam 201241188. Such products, including [0019] gold, and rare metals such as rare metals, and rare earth magnets containing the rare earth metals, are rare earth magnets, referred to as rare earth magnets; Chemical. == Magnetic 1 earth-based magnets are recovered from powders or molded bodies and resin bodies, 摅太方, (4), and mixed with resin bodies. The rare earth magnets are recovered from the molded body. The fat/f may be, for example, a replenishing or a polystyrene resin of the county tree material, or may contain a miscellaneous or aeronautical (four), or a mineral or other component. (4) = The rare earth magnets which are formed into such a resin, and the constituent members of the parts having the structure of the product are conceived. For example, when the structure of the rotor of the motor that constitutes the household electrical appliance is f, the rare earth magnet that is integrated with the resin is a constituent member of the rotor of the motor. When the product is a rotor, it is a member of the resin-based body = a rare earth stone-like rotor. The rotor is made of, for example, a rare earth; a molded body of a negative magnet; and an iron frame formed by a thermosetting resin. [0023] In the rare earth magnets in which the resin is integrated as a constituent member, 3 may be a member other than a resin or a rare earth magnet, for example, a metal member such as iron or copper, an inorganic member such as 201241188 carbon fiber, or an organic member. [0024] The second phase of the R-day is for the rare earth magnets integrated with the resin to carry out the recovery of the rare earth magnets. The hot water treatment can be carried out by the village of Lamu, and the flow chart of the three-way magnet f recovery of the water and the heat of the jingchi (four) shirt of the figure 2, for example, the book. 2), and is divided into: containing the resin - body magnet = 5 and other zero rare earths for classification. In the afternoon, other parts can be used as other parts [0028], so that the above disintegration work can also be used to handle the rare earth-containing magnet parts or the characteristics of the rare products, so that it can be easily and selectively recycled. The content containing and =_ is present in the magnet-like part of the product. In addition, it is disintegrated as a magnetite-like part in the palm or contains a rare earth [0030] ^, and is not subjected to treatment such as crushing or pulverization. 201241188 The rare earth contained in the soil type parts [0031] has been returned to the _ containing rare earth _ stone _ pieces for hot water treatment. Class-like love, first of all, is such that the 2nd rare earth-containing magnetite-type magnet parts 20 are directly put into the decomposition tank. Although the ir ^ ^ is taken out of the temple structure and is efficient, it is preferable. [0033] The mesh-shaped storage body 10 allows the water to be immersed therein, as long as it has a structure of a rare earth magnet type 3〇1 structure remaining after hot water treatment, for example, it can be opened at the top. Cage structure. The king body [0034] by mUi; ^ with the cover part 8 _ force green, should have the cover part 8 fast self-equipment, Japanese industrial standard) open and close 'but in the case of the lockable locking method to make the cover part 8 speed cover opening and closing mechanism When the lid portion 8 _ : the right side is considered to be suitable, it is preferable to carry out the hot water treatment by the hot [0035], which is carried out by the following procedure. The water in the water tank 2 is pressurized by the pump 3 'in the heat exchange, crying back to the second, changing from the bar, and being heated, and adding - hot water to the decomposition tank, 1: set, the father ^S into the rare earth Hot water treatment of magnet parts 2G. The hot water discharged by the sub-unit is supplied from the water storage tank 2 to the sub-correction, the tank 1 is cooled, or the heat exchanger 5 and the cold water are 'replaced two', and the valve 6 is adjusted by the ventilator. The reduced water contains organic 201241188. Therefore, the water circulation drainage device 7 is treated with water such as organic matter or inorganic matter, and most of the water is supplied to the water storage tank 2 for recycling, and a part of the water is discharged. When the water in the water storage tank 2 is insufficient, the water is appropriately replenished from the outside. Field [0036] The pressurized hot water supplied to the decomposition tank 1 is heated, for example, to 18 〇 to 35 〇. The water in a liquid state is in a subcritical state II. The moving side is as follows. [0037] The hot water treatment can be carried out by continuously flowing the pressurized hot water into the decomposition tank 1, but the supply of the magnetized parts 20 can be stopped after the circulation-set time. The source of the resin is necessary for the resin. The water is supplied by the mixed water, and the water of [0038] is carried out. The water storage tank 2 is pressed to both the time and the water is set in the water, and the heating medium is heated to a predetermined temperature. The inside of the decomposition tank 1 is at 18 〇. ^ 35〇. ^ Follow the degree of ^ and enter the subcritical state; ^ + + ', C ~ 350 c reaction temperature [0039] Rare magnets transfer 2G hot water treatment. Earth magnets are stripped, or partially dissolved in = month 曰 = sub-summerization, resin is removed from the thinning 'The separation of rare earth magnets, that is, earth magnet grease and adhesives can disappear from (4) _ stone ^ Qiao Chen The tree is separated from a metal member such as iron or a carbon fiber=covering rare earth magnet component 20 resin. In addition, it is also possible to dilute the magnets, or to demagnetize the parts from the surface of the stone. Such hot water treatment should be composed of pressurized hot water. Due to the presence of sparse or oxidized metal salts
'屬现，便能以例如180°C~27(TC 201241188 ，亦可自樹脂的分解物 又 的溫度有效進行樹脂的加水分解反應 中回收有價物。 【0041】 在熱水處理之後，由於減壓以及冷水流通，使分解槽丨 卻至常溫〜80。(：左右。亦可使分解槽1自然冷卻。 田 令 【0042】 在減壓、冷卻之後，使網格狀收納體1〇震動並且從分 取出。可從所取出的網格狀收_ 10帽已除去樹脂的稀^ 1類刈回收。當含稀土類磁石類零件2〇中含有鐵等金屬 石 等無機構件時’在已除去樹脂的狀態下得職等構件鱼^ ^類磁石類30。例如’當含稀土類磁石類零件2〇為馬達的g %，一般而言馬達構造為電磁鋼板(鐵框)内插入 石 =樹脂分離之後，能以鐵框與稀土類磁石成稀體; 【0043】 之製品解體作業中，並未進行破 4處理，或由於疋已知的製品、零件，故在樹脂 外觀等，容易將稀土類磁石類3〇，與其他金屬構； 類回收。當含紙_石類料2G為馬義料日 之後，雖如上所述係鐵框與稀土類磁石成 、：： 機械性地抽出，藉此可使稀 收之(圖υ。此抽出作業可以徒手操作，亦 τ使賴以抽出的夾具。又’亦可施予機械性 又除外若含有其他無機構件，可作為無機碎肩而回^之。 將網格狀收_ 1G取出後的分解槽 10回收之外的含稀土類磁石類烫件 I自^各狀收納體 物與水殘留而作為分解中人二ϋ例如樹脂的分解 而殘留於分解寺無機物係作為固體成分 驗中。成以過濾等方法使分解液固液分離，藉此將 201241188 该固體成分作為無機碎屑时。所回收的錢碎屑 粉碎，藉此可作為無機塡料而再利用。 八” 【0045】 可從分解液的分雜液中时有價物。例如若樹 乙曰，便可得到苯乙♦馬來酸共聚合體等多元酸 合體、或多元醇以及多元酸等來自聚醋的單體。 破碎品解體後的其他零個，可域1所示，施以粉碎或 2,破碎等處理之後，可利用磁力、渦=右 、。手法進行機齡割，將金屬與樹脂碎屑分類回收。 品中將已樹f成一體化的稀土類磁石類的製 回收盘樹===1細石_收。藉由簡易的解體作業來 低稀土類磁石類回收的成本。又，亦可忿可降 體而回收之。 史稀土類磁石類維持成形 【0048】 根據實施態樣說明了本發明，但本發明並不因卜、f 更。例如如上所述，可不將制要日的補内’可為各種變 處理。亦g卩，村將製σ^ 對製品單體本身進行熱水 類零件來進行埶limi t為圖1所示之含稀土類磁石 類回收。又亦可=土將已除去樹脂之稀土類磁石 【0049】 頬維持成形體而回收之。 树_實_，縣發砸稀於此。 <貫施例1> 【0050】 從洗衣㈣，餘岭有壯類-⑽、含有玻璃纖 201241188 维以及碳酸鈣的樹脂12%、鋼板76%之轉子零件，將其收納於 格狀收納體，投入分解槽中。接著，將水供給至分解槽，進彳1加 熱’在溫度260°C、塵力5MPa的次臨界水狀態下保持2小時。T 自然冷卻至常溫之後，將網格狀收納體從分解槽拿出，將稀土 磁石與鋼板分類回收。又’將分解槽的内容物取出，藉由周知的 選別手法，將玻璃纖維以及碳酸舞分類回收。 3 σ 、 <實施例2> 【0051】 從洗衣财，繼娜出含有稀土綱石12%、含有玻璃纖 12%、鋼板鄕之轉子零件，將其收納於網 心狀收、域’彳认分賴巾。接著，將lmde/L的魏化納 加熱，在溫度職、壓力5廳的次臨界 ί 自齡卻至常溫之後，細格狀收納體 内容物心，莽由m ^石與鋼板分類回收。又，將分解槽的 =物取tH *由周知的選別手法，將玻璃纖維以及碳酸約分類 【圖式簡單說明】 【0016】 之流i圖。:_ τ私_稀土 _石類之回收方法的-實施態樣 圖。 示意圖 圖 =係熱水處理的程序流程之示咅 圖3係熱水處理的另—程序 ^ 圖4係習知的廢棄家電 【主要元件符號說明】 [0052] 1分解槽 2儲水槽 3 ' 11泵浦 S> 12 201241188 4、5熱交換器 6壓力調整閥 7水循環排水設備 8蓋部 10網格狀收納體 12護套 20含稀土類磁石類零件 30稀土類磁石類 13'Available now, for example, 180 ° C ~ 27 (TC 201241188, or the temperature of the decomposition of the resin can be effectively used to recover the valuables in the hydrolysis reaction of the resin. [0041] After the hot water treatment, due to the reduction Pressure and cold water flow, so that the decomposition tank is turned to normal temperature ~ 80. (: left and right. The decomposition tank 1 can also be naturally cooled. Tian Ling [0042] After decompression, cooling, the grid-like storage body 1 〇 and It can be taken out from the minute. It can be recovered from the extracted 稀10 type caps of the resin which has been removed from the resin. When the rare earth-containing magnet parts 2〇 contain inorganic components such as iron and other metal stones, In the state where the resin is removed, the component fish type ^ magnet class 30 is obtained. For example, 'when the rare earth-containing magnet component 2 is the motor %, the motor structure is generally inserted into the electromagnetic steel plate (iron frame) = After the separation of the resin, the iron frame and the rare earth magnet can be made into a thin body; in the dismantling operation of the product, the breaking treatment is not performed, or the known products and parts are used, so that the appearance of the resin or the like is easy. Rare earth magnets 3〇, and other metal structures; Recycling. When the paper-containing stone material 2G is the material of the horse, the iron frame and the rare earth magnet are formed as follows:: mechanically extracted, thereby allowing the thinning to be taken (Fig. The work can be done by hand, and the jig can be used to extract the jig. It can also be applied mechanically. Except if it contains other inorganic components, it can be returned as an inorganic broken shoulder. After taking out the grid-like _ 1G The rare earth-containing magnet-based hot-storing material I other than the recovered decomposing tank 10 remains in the storage body and the water, and remains as a solid component in the decomposition of the inorganic substance, for example, decomposition of the resin. The solid solution is separated into solid waste by the method of filtration or the like, whereby the solid component of 201241188 is used as inorganic waste. The recovered waste crumb is pulverized, and can be reused as an inorganic waste material. Eight" [0045] When there is a valence substance from the liquid mixture of the decomposition liquid, for example, if it is eucalyptus, a polybasic acid compound such as a phenethyl amide maleic acid copolymer or a monomer derived from a polyester such as a polyhydric alcohol or a polybasic acid can be obtained. The other zero after disintegration, can be domain 1 After being subjected to pulverization or 2, crushing, etc., the magnetic force, vortex=right, and the method can be used to cut the metal age and the resin scraps. The rare earth magnets in the product are integrated into the tree. The system of recycling and recycling of trees ===1 fine stone_receiving. The cost of low rare earth magnets can be recovered by simple disassembly work. It can also be recovered by dropping the body. History of rare earth magnets maintenance forming [0048] The present invention has been described based on the embodiments, but the present invention is not limited to the above. For example, as described above, it is possible to make various changes in the process of making the day. The hot water parts of the product itself are subjected to 埶limi t to recover the rare earth-containing magnets shown in Fig. 1. Alternatively, the rare earth magnet from which the resin has been removed may be recovered by maintaining the molded body. Tree _ real _, county hairpin is rare here. <Example 1> [0050] From the laundry (four), the Yuling has a strong--(10), a resin containing 12% of the resin of the glass fiber 201241188, calcium carbonate, and 76% of the steel plate, and is housed in the latticed storage body. , put into the decomposition tank. Next, water was supplied to the decomposition tank, and the heating was carried out for 2 hours in a subcritical water state at a temperature of 260 ° C and a dust force of 5 MPa. T After naturally cooling to normal temperature, the grid-shaped storage body is taken out from the decomposition tank, and the rare earth magnet and the steel sheet are classified and recovered. Further, the contents of the decomposition tank were taken out, and the glass fiber and the carbonic acid dance were classified and recovered by a well-known selection method. 3 σ , <Example 2> [0051] From the laundry, the rotor parts containing 12% of rare earth stones, 12% of glass fibers, and steel slabs were placed in a net-like shape. Recognize the towel. Next, the lmde/L Weihuana is heated, and after the sub-critical 5% of the temperature and pressure chambers, the self-aged age is normal temperature, and the fine-grained storage body contents are collected and recovered by m^stone and steel plate. Further, the material of the decomposition tank is taken as tH*, and the glass fiber and the carbonic acid are classified by a well-known sorting method [simplified description of the drawing] [0016]. : _ τ private _ rare earth _ stone recycling method - implementation of the state diagram. Schematic diagram = description of the program flow of hot water treatment Fig. 3 is another procedure for hot water treatment. Fig. 4 is a conventional waste appliance [Recognition of main components] [0052] 1 Decomposition tank 2 water storage tank 3 ' 11 Pump S> 12 201241188 4, 5 heat exchanger 6 pressure regulating valve 7 water circulation drainage device 8 cover portion 10 mesh storage body 12 sheath 20 containing rare earth magnet parts 30 rare earth magnet class 13