1279512 九、發明說明： 【韻^明所屬之_技彳軒領域^】 發明領域 本發明係有關於一種藉由流體床乾燥機使裝入進煉焦 5爐中之煤炭等濕潤原料乾燥的方法及裝置。 L先前^^軒3 發明背景 生產焦煤時，會在裝入煉焦爐之前先乾燥裝入煤炭， 以提升焦煤品質及提高煉焦爐之生產性能。煉焦爐用煤炭 比=含水分在乾燥前通常為9〜13%左右，但是該煤炭可用煤 厌乾燥機處理至水分含量為5〜6%。 使用流體床乾燥機來乾燥該種煤炭的方法係已知的， 且在專利文獻1中揭示了以煉焦爐之煙自排出氣體作為熱 原/、机動14氣體並導入流體床乾燥機中，以乾燥煤炭 15 法。 之排 另外，在專利文獻2中亦揭示有一方法，該方法係在以 出孔體料熱源與流動絲體並導人流體床乾燥機中以 ，燥濕潤原料時’將一部份導入流體床乾燥機體下部 20 機的氣體出口附近’以防止流體床乾燥 ” 付近及其下游側發生結露情形。 中 内 丫疋〃在<些❹流體床乾職的賴原料乾燥方法 因為係經由裝入滑槽將濕潤原料裝人流體床乾燥機 此會發生濕_料附著、堆積在裝人滑槽的内部， 其疋側端處（聽處）的情形，導致裝人不順利。特別是在 5 1279512 =天時等濕潤原料含水率高的情況下，附著、堆積於裝入 内將更為明顯。再者，在寒冷地區氣溫大幅下 、耆堆積在裝入滑槽内的濕潤原料會結凍， 裝入不順利的情形惡化。 5 10 15 針對於此，雖然有藉著利用蒸氣等熱媒的間接加熱方 式加熱裝人滑槽以防止濕潤原料附著、堆積的方法，但、θ 要昂責的加熱用裝置，同時也需要蒸氣等熱媒: 〜用。雖然可考慮從裝人滑槽外面藉由人力或是壓縮 空氣震動來進行槌擊之其他方法，但是也需要高度勞 業或壓縮空氣的運轉費用。 【專利文獻1】特開2001-55 5 82號公報 【專利文獻2】特開2807813號公報 t 明内j 發明揭示 本發明欲解決之課題係在藉流體床乾燥機來乾燥渴潤 原料之方法及裳置中，可用低成本且簡單的裝置來防止濕 潤原料在流體床乾燥機之裝人滑㈣附著、堆積。 本發_關原料之乾燥方法係以高溫氣體作為執 '流動性氣體並導人流體床乾燥機中，使裝人煉焦爐之 相原料乾燥者，其特徵在於：將_部份前述高溫氣體吹 用以將濕潤原料裝人流體床乾燥機之f认滑槽内部。 另外，本發明的濕潤原料之乾燥裝置，係 作為熱源與流動性氣體並導入流 = 机體床乾煉機中，使裝入煉 …、爐的煤炭等濕潤原料乾燥者，其特徵在於：該乾燥裝置 20 1279512 :有^ 4，且前述吹人喷嘴可將—部份 在本發明=流體床乾燥機之裝入滑槽内部。 吹入裂入滑槽内部側端部。 ”的…皿讀可 5 10 15 20 裝入份高溫氣體亦可由從裝入滑槽之上游側吹入 二份:温氣體吹〜^ f入滑样之肉 氣體出口附近，且可控制朝 體出口 高溫氣體吹入量與朝流體床乾燥機之氣 、的N溫氣料人量’使流體床乾燥機之氣!#出 口附近的氣體溫度達到露點以上。 ^礼體出 盘流= =:’因為將一部份作為流體床乾燥機之熱源 兩要過去帛用的向溫氣體吹人裝人滑槽内部，所以不 ί敎媒進濕潤原料附著、堆積而設置叫用蒸氣 傲的^ 丁:接加熱的加熱裝置。因此，乾燥裝置之構造 夂的間早，成本也可以降低。 另外，因為本發明係將一部份高溫氣 熱方式，與習知的間接加熱方式相:: 貝“4原料附著、堆積在裝入滑槽内之情形。又， 亦可防止在寒冷地區發生之關顧財情形。 再者，可以將過去位於流體床乾燥機體上部之氣體出 Z近導人高溫氣體⑽止、轉之絲t線直徑 者可以將該氣體管線去除。 忒 圖式簡單說明 7 1279512 第1圖係顯示本發明乾燥裝置之第一實施例的概略構 成圖。 第2A圖係顯示將高溫氣體吹入裝入滑槽内部之構成例 的正視圖。 5 第2B圖係第2A圖之箭頭A-A的視圖。 第3A圖係顯示在第2A圖、第2B圖的構造中，用以將高 溫氣體吹入裝入滑槽内部的吹入喷嘴之配置例的立體圖。 第3B圖係顯示在第2A圖、第2B圖的構造中，用以將高 温氣體吹入裝入滑槽内部的吹入喷嘴之配置例的正視圖。 10 第3C圖係顯示在第2A圖、第2B圖的構造中，用以將高 溫氣體吹入裝入滑槽内部的吹入喷嘴之配置例的側視圖。 第4A圖係顯示在第2A圖、第2B圖的構造中，用以將高 溫氣體吹入裝入滑槽内部的吹入喷嘴之配置例的立體圖。 第4B圖係顯示在第2A圖、第2B圖的構造中，用以將高 15 溫氣體吹入裝入滑槽内部的吹入喷嘴之配置例的正視圖。 第4C圖係顯示在第2A圖、第2B圖的構造中，用以將高 溫氣體吹入裝入滑槽内部的吹入喷嘴之配置例的側視圖。 第5A圖係顯示將高溫氣體吹入裝入滑槽内部之另一構 成例的正視圖。 20 第5B圖係第5A圖之箭頭B-B的視圖。 第6A圖係顯示在第5A圖、第5B圖的構造中，用以將高 溫氣體吹入裝入滑槽内部的吹入喷嘴之配置例的立體圖。 第6B圖係顯示在第5A圖、第5B圖的構造中，用以將高 溫氣體吹入裝入滑槽内部的吹入喷嘴之配置例的側視圖。 1279512 第7圖係顯不本發明乾燥裝置之第2實施例的概略構成 圖。 第8圖係顯示本發明乾燥裝置之第3實施例的概略構成 圖。 5 【方包】 ； 實施發明之最佳形態 - m t據將本發明使用於乾輯焦爐㈣炭粉(以下 簡稱為「煤炭粉」）的實施例，朗本發_實施形態。 Φ (實施形態1) 10 圖係顧林發明乾燥裝置之第-實施例的概略構 成圖。 圖中，煉焦爐（圖未示）所產生之溫度150〜25(rc的燃燒 排出氣體（以下稱做「高溫氣體」）藉由送風機i升壓，再經 過氣體通氣管2及流量控制閥3，從流體床乾燥機4下部導 15 入，並由上方的氣體出口 5排出。 濕_料’即煤炭粉’利職人滑飾裝人流體床乾燥 • 機4内，再藉由從流體床乾燥機4下方部所導入之前述言π «所產生的上升氣流，形成流體床7。在該流二7^ 燥煤炭粉，並將煤炭粉調整至預定溫度及含水率後，、妙由 20排出滑槽8排出。 從氣體通氣管2分支出^旁通管9,且—部份高溫氣體 經由該第1旁通管9導入流體床乾燥機4上部之氣體出口 5附 近。此外，從設在第！旁通管9當中的流量控制閥;)下游: 分支出第2旁通管11，且—部份高溫氣體經由該第2旁通管 9 1279512 11吹入裝入滑槽6内部。將從第1旁通管9導入之高溫氣體分 配到第2旁通管11之氣體量的調整方法可為在第2旁通管11 當中設置流量控制閥、孔口等，或是在第1旁通管9與第2旁 通管11的分支部下游處設置流量控制閥、孔口等，此外， 5 亦可同時採用此兩種方法。 接著，使從流體床乾燥機4上方之氣體出口 5排出的氣 體由引風機14引流後通過氣體排出管12，並經集塵袋等之 集塵機13除塵後，排出至空氣中。 如上所述，在本發明中，可藉由將一部份高溫氣體吹 10 入裝入滑槽6内部，防止煤炭粉附著、堆積在裝入滑槽6内 部。 又，吹入裝入滑槽6内部之高溫氣體與導入氣體出口 5 附近的高溫氣體，因為未通過含有非乾燥物之流動床7，所 以仍維持高溫，而藉由控制該等高溫氣體量，可讓氣體出 15 口 5附近的氣體溫度達到露點以上，且可防止氣體出口 5附 近及其下游側處發生結露。本實施例中，如上所述，因為 係於第1旁通管9之流量控制閥10的下游側分支出第2旁通 管11，所以可藉著流量控制閥10來調節未通過流動床7之高 溫氣體總量，使氣體出口 5附近的氣體溫度到達露點以上。 20 另外，藉由於第1旁通管9之流量控制閥10的下游側分支出 第2旁通管11，可以縮短至裝入滑槽6之第2旁通管11的管路 長度。 再者，高溫氣體溫度不足時，亦可以於氣體通氣管2之 第1旁通管9的分支處上游側設置加熱裝置以加熱氣體。 10 1279512 第2A圖係顯示將高溫氣體吹入裝入滑槽内部之構成例 的正視圖；第2B圖係第2A圖之箭頭A-A的視圖。第3A圖〜 第3C圖、第4A圖〜第4C圖分別係顯示在第2A圖、第2B圖的 構造中，用以將高溫氣體吹入裝入滑槽内部的吹入喷嘴之 5 配置例。 第2A圖、第2B圖中顯示之例子係將高溫氣體朝向煤炭 粉容易附著的裝入滑槽6内側端部（角落部）吹入。具體來 說，如第3A圖〜第3C圖或第4A圖〜第4C圖所示，在裝入滑 槽6之滑動面6a及側面6b設有複數個吹入喷嘴15，且該等吹 10 入喷嘴15的吹出方向係朝向裝入滑槽6之側端部6c。此時， 藉著適當調整第4B圖、第4C圖所顯示之角度Θ1、Θ2，可確 實防止煤炭粉附著在裝入滑槽6之側端部6c。又，前述吹入 噴嘴15的位置宜盡可能縮小第3B圖、第3C圖所顯示之L1、 L2。此外，必須令裝設在裝入滑槽6之滑動面6a的吹入喷嘴 15 15具有一角度，使經過裝入滑槽6落下之煤炭粉不會阻塞喷 嘴口，而吹入喷嘴15的角度最好設定為第4C圖中之90° -(ec+θη)大於煤炭粉之靜止角。 又，若欲進行加熱、乾燥以防止煤炭粉附著在裝入滑 槽6中，則吹入裝入滑槽6之高温氣體的溫度以高於空氣溫 20 度為佳。此外，若考慮到一般以普通鋼板製作之裝入滑槽6 的耐熱性，則吹入高溫氣體的溫度最好在350°C以下為佳， 且吹入之高溫氣體的溼度係越低越好。 第5A圖係顯示將高溫氣體吹入裝入滑槽内部之另一構 成例的正視圖，第5B圖係第5A圖箭頭B-B的視圖。第6A圖、 11 1279512 第6B圖係顯示在圖5A、圖5B的構造中用以將高溫氣體吹入 裝入滑槽内部的吹入噴嘴之配置例。 在第5A圖、第5B圖中顯示的例子係將高溫氣體從裝入 滑槽6上游側的裝入裝置16朝向裝入滑槽6内部吹入，以加 5熱、乾燥裝入滑槽6全體。具體來說，如第6A圖、第6B圖 所示，在裝入裝置16上配置吹入喷嘴15，並將南溫氣體吹 入裝入滑槽6内部。此時，為使從裝入裝置16經過裝入滑槽 _ 6再裝入流體床内之煤炭粉能夠順利地落下，第6B圖中吹入 喷嘴15之角度θρ以在0。〜0c之間為佳。另外，吹入噴嘴15與 10 流動床相對之側之下端面Ν的位置，最好位於比裝入滑槽6 之滑動面6a上端面C的位置，更靠近裝入滑槽6内側（流動床 側)處。 (實施形態2) 第7圖係顯示本發明的乾燥裝置之第2實施例的概略構 15成圖。又，對於與第1圖所示之第1實施例相同之構造賦予 Φ 相同符號，並省略其說明。 在弟1圖所示之弟1實施例中，在第1旁通管9分支出將 - 一部份咼溫氣體吹入裝入滑槽ό的第2旁通管11，但是在本 • 實施例中，於氣體通氣管2分支出第2旁通管11，且亦在第2 20旁通管11設有流量控制閥17。 本實施例中，藉由僅將第2旁通管u與氣體通氣管2相 連接，便可將藉由送風機i升壓後之高溫氣體吹入裝入滑槽 6内部。 另外，在本實施例中，將控制裝置18接續在第丨旁通管 12 1279512 9之流量控制閥10與第2旁通管11之流量控制閥17間，可檢 測並調節第1旁通管9及第2旁通管11的高溫氣體流量，並藉 由該裝置來調節未通過流動床7之高溫氣體總量，使氣體出 口5附近的氣體温度到達露點以上。又，如此一來，因為亦 5 可由第2旁通管11導入高溫氣體，和過去使用一根氣體管路 (第1旁通管9)導入高溫氣體至氣體出口 5附近的情形相比， 該氣體管線直徑可以縮小，或者可以將該氣體管線去除。 (實施形態3) ® 第8圖係顯示本發明的乾燥裝置之第3實施例的概略構 10 成圖。又，對於與第1圖所示之第1實施例相同之構造賦予 相同符號，並省略其說明。 在本實施例中，可除了高溫氣體以外，再將計量空氣 等的乾燥氣體吹入裝入滑槽内，或者取代高溫氣體。其中， 使用計量空氣時，若考慮到氣體溫度過低的情形與計量空 15 氣的運轉費用，則不能說是有效率的。又，因為吹入含氧 量多的氣體會導致流動床乾燥機4内的氧氣濃度提高，所 以，慮及防止粉塵爆等，在吹入氣體時必須要調節吹入量， 使流動床乾燥機4内之氧氣濃度位於安全範圍内。 產業上利用之可能性 20 本發明不僅可適用於乾燥裝入煉焦爐之煤炭粉，亦可 適用於乾燥水碎渣及石灰石等其他的濕潤原料。另外，本 發明所使用之高溫氣體同樣不僅限於煉焦爐的燃燒排出氣 體，亦可使用從燃燒爐及窯等產生之排出氣體。 【圖式簡單說明】 13 1279512 第1圖係顯示本發明乾燥裝置之第一實施例的概略構 成圖。 第2A圖係顯示將高溫氣體吹入裝入滑槽内部之構成例 的正視圖。 5 第2B圖係第2A圖之箭頭A-A的視圖。 第3A圖係顯示在第2A圖、第2B圖的構造中，用以將高 溫氣體吹入裝入滑槽内部的吹入喷嘴之配置例的立體圖。 第3B圖係顯示在第2A圖、第2B圖的構造中，用以將高 溫氣體吹入裝入滑槽内部的吹入喷嘴之配置例的正視圖。 10 第3C圖係顯示在第2A圖、第2B圖的構造中，用以將高 溫氣體吹入裝入滑槽内部的吹入喷嘴之配置例的側視圖。 第4A圖係顯示在第2A圖、第2B圖的構造中，用以將高 溫氣體吹入裝入滑槽内部的吹入喷嘴之配置例的立體圖。 第4B圖係顯示在第2A圖、第2B圖的構造中，用以將高 15 溫氣體吹入裝入滑槽内部的吹入喷嘴之配置例的正視圖。 第4C圖係顯示在第2A圖、第2B圖的構造中，用以將高 溫氣體吹入裝入滑槽内部的吹入喷嘴之配置例的側視圖。 第5A圖係顯示將高溫氣體吹入裝入滑槽内部之另一構 成例的正視圖。 20 第5B圖係第5A圖之箭頭B-B的視圖。 第6A圖係顯示在第5A圖、第5B圖的構造中，用以將高 溫氣體吹入裝入滑槽内部的吹入喷嘴之配置例的立體圖。 第6B圖係顯示在第5A圖、第5B圖的構造中，用以將高 溫氣體吹入裝入滑槽内部的吹入喷嘴之配置例的側視圖。 14 1279512 第7圖係顯示本發明乾燥裝置之第2實施例的概略構成 圖。 第8圖係顯示本發明乾燥裝置之第3實施例的概略構成 圖。 5 【主要元件符號說明】 1…親機 9...第1旁通管 2...氣體通氣管 10...流量控制閥 3…流置控制闕 11...第2旁通管 4...乾燥機 12...氣體排出管 5...氣體出口 13…集塵機 6…裝入滑槽 14…引風機 6a…裝入滑槽的滑動面 15…吹入喷嘴 6b…裝入滑槽的側面 16…裝入裝置 6c…裝入滑槽的側端部 17...流量控制閥 7···流體床 18...控制裝置 8...排出滑槽 151279512 IX. Description of the invention: [Technology] The present invention relates to a method for drying a wet raw material such as coal loaded into a coke 5 furnace by a fluid bed dryer and Device. L Previous ^^ Xuan 3 BACKGROUND OF THE INVENTION When coking coal is produced, it is first dried and charged into coal before being charged into the coke oven to improve the quality of the coking coal and improve the production performance of the coke oven. Coal for coke oven ratio = water content is usually about 9 to 13% before drying, but the coal can be treated with a coal-drying dryer to a moisture content of 5 to 6%. A method of drying a coal using a fluid bed dryer is known, and Patent Document 1 discloses that a smoke from a coke oven is used as a pyrogen/motor 14 gas and introduced into a fluid bed dryer. Dry coal 15 method. In addition, in Patent Document 2, there is also disclosed a method of introducing a part into a fluid bed when the wet material is dried in a body fluid source and a flow wire body and a fluid bed dryer. Drying the lower part of the machine below the gas outlet of the machine to prevent the fluid bed from drying. The dew condensation occurs on the near side and the downstream side. The drying method of the raw material in the lower part of the body is based on the drying method of the raw material. The tank will wet the raw material to be loaded into the fluid bed dryer. This will cause the wet material to adhere to and accumulate in the inside of the loading chute, and the side of the squatting side (listening) will cause the loading to be unsatisfactory. Especially in 5 1279512 = When the moisture content of the wet raw materials is high, the adhesion and accumulation in the loading will be more obvious. In addition, in the cold regions, the wet materials accumulated in the chute will freeze when the temperature is extremely high. In the case where the loading is not smooth, the situation is deteriorated. 5 10 15 In this regard, there is a method of heating the loading chute by indirect heating using a heat medium such as steam to prevent the wet material from adhering and accumulating. plus Hot-use devices, but also need heat medium such as steam: ~. Although other methods of slamming from the outside of the manned chute by manpower or compressed air vibration can be considered, but also require high labor or compressed air. [Patent Document 1] JP-A-2001-55 5 82 [Patent Document 2] JP-A-2807813 (B) No. 2807813 discloses that the problem to be solved by the present invention is to dry the fluid in a fluid bed dryer. In the method and the skirt of the raw material, a low-cost and simple device can be used to prevent the wet raw material from adhering and accumulating in the fluid bed dryer. The drying method of the raw material is based on high temperature gas as the liquidity. In the gas-conducting fluid bed dryer, the raw material of the coke oven is dried, and the high-temperature gas is blown to the inside of the trap tank of the wet-bed raw fluid bed dryer. Further, the drying device for the wet raw material of the present invention is introduced as a heat source and a fluid gas into a flow-body bed dry machine to dry the wet raw materials such as coal charged in the furnace or the furnace. The utility model is characterized in that: the drying device 20 1279512: has 4, and the aforementioned blowing nozzle can be partially filled into the chute inside the fluid bed dryer of the present invention. The blowing is split into the inner side end of the chute." The reading of the dish can be 5 10 15 20. The high temperature gas can also be blown into the air from the upstream side of the loading chute: the warm gas is blown into the vicinity of the meat gas outlet of the slip sample, and the outlet of the body can be controlled. The amount of high-temperature gas blown and the amount of N-warming gas to the fluid of the fluid bed dryer is such that the gas in the vicinity of the outlet of the fluid bed dryer reaches the dew point. ^礼体出流流 = =: 'Because part of it is used as the heat source of the fluid bed dryer, the two are used to blow the inside of the chute to the warm gas, so the medium does not adhere to the wet material. The setting is called steam arrogant ^: heating device that is heated. Therefore, the construction of the drying device is early and the cost can be reduced. In addition, because the present invention combines a part of the high-temperature gas-heating method with the conventional indirect heating method:: "Before the 4 materials are attached and accumulated in the loading chute, it is also prevented from occurring in cold regions. In addition, the gas in the upper part of the fluid bed dryer body can be removed from the Z-directed high-temperature gas (10), and the diameter of the wire can be removed. The simple description of the figure 7 1279512 Fig. 1 is a schematic view showing a first embodiment of the drying apparatus of the present invention. Fig. 2A is a front view showing a configuration example in which a high-temperature gas is blown into the inside of the chute. Fig. 2B is a second diagram View of the arrow AA. Fig. 3A is a perspective view showing an arrangement example of a blowing nozzle for blowing high-temperature gas into the inside of the chute in the structures of Figs. 2A and 2B. Fig. 3B is a view showing In the structures of Figs. 2A and 2B, a front view of an arrangement example of a blowing nozzle for blowing a high-temperature gas into the inside of the chute is shown. Fig. 3C is a view showing the second embodiment and the second drawing. In the construction, the high temperature gas is blown into the chute Fig. 4A is a perspective view showing an arrangement example of a blowing nozzle for blowing high-temperature gas into the inside of the chute in the structures of Figs. 2A and 2B. Fig. 4B is a front view showing an arrangement example of a blowing nozzle for blowing a high temperature of 15 atmospheres into the inside of the chute in the structures of Figs. 2A and 2B. Fig. 4C is shown in the figure. In the structures of Fig. 2A and Fig. 2B, a side view of an arrangement example of blowing nozzles for blowing high-temperature gas into the inside of the chute is shown in Fig. 5A, which shows that the high-temperature gas is blown into the inside of the chute. A front view of a configuration example. Fig. 5B is a view of arrow BB of Fig. 5A. Fig. 6A is a view showing the structure of Fig. 5A and Fig. 5B for blowing high temperature gas into the inside of the chute. Fig. 6B is a side view showing an arrangement example of blowing nozzles for blowing high-temperature gas into the inside of the chute in the structures of Figs. 5A and 5B. 1279512 Fig. 7 is a schematic configuration diagram showing a second embodiment of the drying apparatus of the present invention. A schematic configuration diagram of a third embodiment of the drying apparatus of the present invention is shown. 5 [Bags]; Best Mode for Carrying Out the Invention - mt According to the present invention, the present invention is applied to a dry coke oven (4) carbon powder (hereinafter referred to as "coal powder"). An embodiment of the present invention is disclosed in the present invention. Φ (Embodiment 1) FIG. 10 is a schematic configuration diagram of a first embodiment of the invention of the drying device of Gu Lin. In the figure, the temperature generated by the coke oven (not shown) is 150 to 25 (the combustion exhaust gas of rc (hereinafter referred to as "high temperature gas") is boosted by the blower i, and then passed through the gas vent pipe 2 and the flow rate control valve 3. , from the lower part of the fluid bed dryer 4, 15 and discharged from the upper gas outlet 5. The wet material, that is, the coal powder, is used to dry the fluid bed in the machine, and then dried from the fluid bed. The upstream airflow introduced by the lower part of the machine 4 is formed into a fluid bed 7. After the coal powder is dried, the coal powder is adjusted to a predetermined temperature and water content, and then discharged by 20 The chute 8 is discharged. The bypass pipe 9 is branched from the gas vent pipe 2, and a part of the high-temperature gas is introduced into the vicinity of the gas outlet 5 of the upper portion of the fluid bed dryer 4 via the first bypass pipe 9. The flow control valve in the bypass pipe 9;) downstream: the second bypass pipe 11 is divided, and a part of the high-temperature gas is blown into the inside of the chute 6 via the second bypass pipe 9 1279512. The method of adjusting the amount of gas for distributing the high-temperature gas introduced from the first bypass pipe 9 to the second bypass pipe 11 may be to provide a flow control valve, an orifice, or the like in the second bypass pipe 11, or in the first A flow rate control valve, an orifice, and the like are provided downstream of the branch portion of the bypass pipe 9 and the second bypass pipe 11, and the two methods can be simultaneously employed. Then, the gas discharged from the gas outlet 5 above the fluidized bed dryer 4 is drained by the draft fan 14, passes through the gas discharge pipe 12, and is removed by dust collector 13 such as a dust bag, and then discharged to the air. As described above, in the present invention, a part of the high-temperature gas can be blown into the inside of the chute 6, thereby preventing the coal powder from adhering and accumulating in the inside of the loading chute 6. Further, the high-temperature gas blown into the inside of the chute 6 and the high-temperature gas introduced into the vicinity of the gas outlet 5 do not pass through the fluidized bed 7 containing the non-dried material, so that the high temperature is maintained, and by controlling the amount of the high-temperature gas, The temperature of the gas near the gas outlet 5 can reach the dew point or more, and condensation can be prevented from occurring near the gas outlet 5 and at the downstream side thereof. In the present embodiment, as described above, since the second bypass pipe 11 is branched on the downstream side of the flow control valve 10 of the first bypass pipe 9, the flow control valve 10 can be used to adjust the failing flow bed 7 The total amount of high temperature gas causes the temperature of the gas near the gas outlet 5 to reach above the dew point. Further, since the second bypass pipe 11 is branched from the downstream side of the flow control valve 10 of the first bypass pipe 9, the length of the pipe to the second bypass pipe 11 of the chute 6 can be shortened. Further, when the temperature of the high temperature gas is insufficient, a heating means may be provided on the upstream side of the branch of the first bypass pipe 9 of the gas vent pipe 2 to heat the gas. 10 1279512 Fig. 2A is a front elevational view showing a configuration in which high-temperature gas is blown into the inside of the chute; and Fig. 2B is a view in arrow A-A in Fig. 2A. 3A to 3C and 4A to 4C are diagrams showing an arrangement example of blowing nozzles for blowing high-temperature gas into the inside of the chute in the structures of Figs. 2A and 2B, respectively. . In the examples shown in Figs. 2A and 2B, the high-temperature gas is blown into the inner end portion (corner portion) of the loading chute 6 where the coal powder is easily adhered. Specifically, as shown in FIGS. 3A to 3C or 4A to 4C, a plurality of blowing nozzles 15 are provided in the sliding surface 6a and the side surface 6b of the loading chute 6, and the blowing nozzles 10 The blowing direction of the inlet nozzle 15 is directed toward the side end portion 6c of the loading chute 6. At this time, by appropriately adjusting the angles Θ1 and Θ2 shown in Figs. 4B and 4C, it is possible to surely prevent the coal powder from adhering to the side end portion 6c of the loading chute 6. Further, it is preferable that the position of the blowing nozzle 15 is as small as possible to reduce L1 and L2 shown in Figs. 3B and 3C. Further, the blowing nozzle 15 15 attached to the sliding surface 6a of the loading chute 6 must have an angle such that the coal powder falling through the loading chute 6 does not block the nozzle opening, but the angle of the nozzle 15 is blown. It is preferable to set 90° - (ec + θη) in Fig. 4C to be larger than the angle of repose of the coal powder. Further, if heating or drying is to be carried out to prevent the coal powder from adhering to the loading chute 6, the temperature of the high-temperature gas blown into the chute 6 is preferably 20 degrees higher than the air temperature. Further, in consideration of heat resistance of the loading chute 6 which is generally made of a common steel plate, the temperature at which the high-temperature gas is blown is preferably 350 ° C or less, and the lower the humidity of the high-temperature gas to be blown is as low as possible. . Fig. 5A is a front view showing another configuration example in which a high-temperature gas is blown into the inside of the chute, and Fig. 5B is a view of an arrow B-B in Fig. 5A. Fig. 6A, 11 1279512 Fig. 6B shows an arrangement example of the blowing nozzle for blowing high temperature gas into the inside of the chute in the configuration of Figs. 5A and 5B. The example shown in Figs. 5A and 5B is to blow high-temperature gas from the loading device 16 on the upstream side of the loading chute 6 toward the inside of the loading chute 6, to add 5 heat and dry to the chute 6 All. Specifically, as shown in Figs. 6A and 6B, the blowing nozzle 15 is disposed in the loading device 16, and the southerly gas is blown into the inside of the chute 6. At this time, in order to allow the coal powder which has been loaded into the fluid bed from the loading device 16 through the loading chute _ 6 to be smoothly dropped, the angle θρ of the nozzle 15 blown in Fig. 6B is at 0. Between ~0c is better. Further, the position of the lower end face Ν of the blowing nozzle 15 opposite to the flow bed of the 10 is preferably located closer to the upper end surface C of the sliding surface 6a of the chute 6, and closer to the inside of the loading chute 6 (fluid bed) Side). (Embodiment 2) Fig. 7 is a view showing a schematic configuration of a second embodiment of the drying apparatus of the present invention. The same components as those in the first embodiment shown in Fig. 1 are denoted by the same reference numerals, and their description will be omitted. In the embodiment of the first embodiment shown in FIG. 1, the first bypass pipe 9 branches off and blows a part of the warm gas into the second bypass pipe 11 installed in the chute, but in the present embodiment In the example, the second bypass pipe 11 is branched from the gas vent pipe 2, and the flow control valve 17 is also provided in the second 20 bypass pipe 11. In the present embodiment, by only connecting the second bypass pipe u to the gas vent pipe 2, the high-temperature gas pressurized by the blower i can be blown into the inside of the chute 6. In addition, in the present embodiment, the control device 18 is connected between the flow control valve 10 of the second bypass pipe 12 1279512 9 and the flow control valve 17 of the second bypass pipe 11, and the first bypass pipe can be detected and adjusted. The high-temperature gas flow rate of the second bypass pipe 11 and the second bypass pipe 11 are used to adjust the total amount of the high-temperature gas that has not passed through the fluidized bed 7, so that the temperature of the gas near the gas outlet 5 reaches the dew point or higher. Further, in this case, the high-temperature gas can be introduced from the second bypass pipe 11 as compared with the case where the high-temperature gas is introduced into the vicinity of the gas outlet 5 by using one gas pipe (the first bypass pipe 9). The gas line diameter can be reduced or the gas line can be removed. (Embodiment 3) ® Fig. 8 is a view showing a schematic configuration of a third embodiment of the drying apparatus of the present invention. The same components as those in the first embodiment shown in Fig. 1 are denoted by the same reference numerals, and their description will be omitted. In the present embodiment, in addition to the high temperature gas, a dry gas such as metered air may be blown into the chute or replaced with a high temperature gas. Among them, when using metered air, it cannot be said that it is efficient considering the case where the gas temperature is too low and the operating cost of metering air. Further, since blowing a gas containing a large amount of oxygen causes an increase in the oxygen concentration in the fluidized bed dryer 4, it is necessary to prevent the dust explosion, etc., and it is necessary to adjust the amount of blowing when blowing the gas to make the fluidized bed dryer. The oxygen concentration in 4 is within the safe range. Industrial Applicability 20 The present invention can be applied not only to coal powder which is dried in a coke oven but also to other wet materials such as dry water slag and limestone. Further, the high-temperature gas used in the present invention is not limited to the combustion exhaust gas of the coke oven, and the exhaust gas generated from the combustion furnace, the kiln or the like may be used. BRIEF DESCRIPTION OF THE DRAWINGS 13 1279512 Fig. 1 is a schematic view showing the first embodiment of the drying apparatus of the present invention. Fig. 2A is a front view showing a configuration example in which a high-temperature gas is blown into the inside of the chute. 5 Figure 2B is a view of arrow A-A of Figure 2A. Fig. 3A is a perspective view showing an arrangement example of a blowing nozzle for blowing a high-temperature gas into the inside of the chute in the structures of Figs. 2A and 2B. Fig. 3B is a front view showing an arrangement example of a blowing nozzle for blowing a high-temperature gas into the inside of the chute in the structures of Figs. 2A and 2B. 10 Fig. 3C is a side view showing an arrangement example of a blowing nozzle for blowing a high-temperature gas into the inside of the chute in the structures of Figs. 2A and 2B. Fig. 4A is a perspective view showing an arrangement example of a blowing nozzle for blowing a high-temperature gas into the inside of the chute in the structures of Figs. 2A and 2B. Fig. 4B is a front view showing an arrangement example of a blowing nozzle for blowing a high temperature of 15 atmospheres into the inside of the chute in the structures of Figs. 2A and 2B. Fig. 4C is a side view showing an arrangement example of a blowing nozzle for blowing a high-temperature gas into the inside of the chute in the structures of Figs. 2A and 2B. Fig. 5A is a front elevational view showing another configuration example in which a high-temperature gas is blown into the inside of the chute. 20 Figure 5B is a view of arrow B-B of Figure 5A. Fig. 6A is a perspective view showing an arrangement example of a blowing nozzle for blowing a high-temperature gas into the inside of the chute in the structures of Figs. 5A and 5B. Fig. 6B is a side view showing an arrangement example of a blowing nozzle for blowing a high-temperature gas into the inside of the chute in the structures of Figs. 5A and 5B. 14 1279512 Fig. 7 is a view showing a schematic configuration of a second embodiment of the drying apparatus of the present invention. Fig. 8 is a schematic block diagram showing a third embodiment of the drying apparatus of the present invention. 5 [Description of main component symbols] 1...Protection machine 9...1st bypass pipe 2...Gas vent pipe 10...Flow control valve 3...Flow control 阙11...2nd bypass pipe 4 ...dryer 12...gas discharge pipe 5...gas outlet 13...dust collector 6...loading chute 14...inclination fan 6a...sliding surface 15 loaded into the chute...injecting nozzle 6b...loading slip Side surface 16 of the tank... loading device 6c... side end portion 17 loaded into the chute... flow control valve 7... fluid bed 18... control device 8... discharge chute 15