539659 A7 B7 經濟部智慧財產局員工消費合作社印製 五、發明説明（1 ) (發明所屬之技術領域） 本發明係關於一種依爐前方式的硬質水碎熔澄之製造 方法及其裝置。特別是，提案一種將適用作爲混凝土用細 骨材的良質硬質水碎熔渣，以較低成本之投資，安定又多 量地製造所用的方法及其裝置。 (背景技術） 高爐熔渣係於熔融狀態之熔渣直接噴上高壓冷卻水而 藉由急冷被細粒化，大都被利用作爲所謂水碎熔渣。依該 高壓水的急冷處理稱爲水碎處理。水碎熔渣係依其性狀， 主要區別成主要成爲水泥等原料的「軟質水碎熔渣」及適 用於混凝土用細骨材的「硬質水碎熔融」。但是習知所得 到的熔渣之大部分係適用於混凝土原料的軟質水碎熔渣。 對於適用於混凝土用細骨板之硬質水碎熔渣，被規定在 J—I S A 5 0 11。 現在，作爲水碎熔渣之製造方法眾知有兩種方式。一 種方式係高爐的熔渣溜槽直結於水碎製造設備，在高爐近 旁進行水碎處理的「爐前方式」；另一種方式係將熔融熔 渣接受於熔渣鍋之後，搬運至設置與高爐較遠之其他場所 的水碎製造設備來進行水碎處理的「爐外方式」。其中， 作爲製造硬質水碎熔渣的方法，主要採用上述爐外方式。 其理由係爐外方式時，水碎處理前之熔融熔渣之溫度變低 之故，因而適用於製造高比重之硬質水碎熔渣。 一般，在爐外方式中，將熔融熔渣在高爐之鑄床下接 (請先閲讀背面之注意事項再填寫本頁) 本紙張尺度適用中國國家標準（CNS ) A4規格（210X 297公釐） -4- 539659 A7 B7 五、發明説明（2 ) (請先閲讀背面之注意事項再填寫本頁) 受在熔渣鍋之後，搬出至設於其他場所的水碎製造設備， 在搬運目的地從熔渣鍋移至水碎製造設備後加以水碎處理 。因此在搬運等之作業期間充分地降低熔融熔渣之溫度。 而且從熔渣鍋至水碎製造設備的熔融熔渣之供給流量係容 易控制成平均一定之故，因而流量很少在途中有很大變動 。因此，若以一定流量供給來自該水碎製造設備中之吹製 噴嘴之噴射水，則水/熔渣比係可經常地維持在一定比率 。如此，所生成的硬質水碎熔渣之品質上偏差較少，而且 也具有可避免即使熔融熔渣流量過多所產生之水蒸汽爆炸 之危險性的特徵。 經濟部智慧財產局員工消費合作社印製 另一方面，爐前方式之情形，直結有熔渣溜槽與水碎 製造裝置而沒有緩衝部分之故，因而熔渣溫度總是較高， 高爐之出鐵狀況直接影響水碎製造設備。一般從開始出鐵 一直到終了之期間，熔融熔渣之溫度或流量會有很大變動 。-因此，即使以一定流量供給對於吹製噴嘴之噴射水，僅 以該狀況也不能安定水碎熔渣之品質，又，熔渣溫度也高 之故，因而成爲發生以軟質熔渣爲主體而含有少量硬質熔 渣的混合物。又，在該方式之情形，僅限於熔融熔渣之溫 度低的出鐵初期，容易產生高比重之硬質水碎熔渣之故， 因而也可從所製造之水碎熔渣中選別出適合於硬質水碎熔 渣之規格者。而且只能得到少量之硬質水碎熔渣之故，因 而在選別上也需要費用而效率較差。 在日本特公平6 - 3 9 3 4 0號公報中提案一種從四 處吹製噴嘴進行熔渣吹製用冷卻水之噴射，並能獨立控制 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） - 5- 539659 A7 B7 五、發明説明（3) (請先閱讀背面之注意事項再填寫本頁) 各噴嘴之水壓，而在爐前方式也可自由地製造出硬質水碎 熔渣與軟質水碎熔渣的技術。又，在該技術中，藉由調整 噴射於熔融熔渣的冷卻水之水壓，也可製造出硬軟兩水碎 熔渣之粗粒或細粒。但是，在該技術中，雖能製造出粒徑 不同之水碎熔渣，惟並未考慮到出鐵後之熔融熔渣之溫度 經時地變動（逐漸地上昇），而無法安定地多量製造高比 重之水碎熔渣。因此，擬安定地多量製造高比重之硬質水 碎熔渣，則上述爐外方式者可能較有利。 以上說明了爐外方式與爐前方式之習知技術之特徵。 如此，從安定地製造出良質又廉價之硬質水碎熔渣之觀點 來比較兩方式，則在兩方式有以下之缺點。亦即，若採用 依爐外方式的硬質水碎熔渣之製造方法，則需要將熔融熔 渣從熔渣溜槽導進熔渣鍋的設備，又也需要將該熔渣鍋輸 送至距高爐有一段距離之具有水碎熔渣製造設施之場所的 路i泉或柴油車等之附帶設備。此乃成爲需要龐大之投資之 故，因而不能說是廉價之硬質水碎熔渣之製造方法，仍需 加強改善。 經濟部智慧財產局員工消費合作社印製 另一方面，在依爐前方式的硬質水碎熔渣之製造方法 中，水碎處理條件無法對應於熔融熔渣之流出條件（速度 ，溫度，量）之變動之故，因而也無法避免混入軟質水碎 熔渣，而未經選別很難安定地製造高品質之硬質水碎熔渣 〇 c發明之槪要） 本紙張尺度適用中國國家標準（CNS ) A4規格（ 210X 297公釐） '~ " "一 539659 A7 B7 經濟部智慧財產局員工消費合作社印製 五、發明説明（4 ) 本發明之目的係在於提案一種解決習知技術所具有之 上述問題，特別是以較廉價之投資而安定又多量地製造良 質，廉價之硬質水碎熔渣所用的技術。 經欲實現上述目的的專心硏究結果，發明人等開發了 有關於以下之要旨構成的硬質水碎熔澄之新製造設備及製 造技術。 亦即，本發明之硬質水碎熔渣製造裝置，係屬於將從 局爐所排出之熔融熔渣經由熔渣溜槽引導至吹製箱的水碎 熔渣製造裝置，其特徵爲：在該熔渣溜槽與該吹製箱之間 具有該溶澄之供給控制用接受器。又，在該裝置中，上述 接受器係可傾動之接受器較理想。 又，在上述之任何的製造裝置中，該接受器係朝與該 熔渣溜槽的熔渣之流動方向不同方向可傾動，於一傾動方 向設有吹製箱，又於與該傾動方向不同之其他傾動方向設 有_熔渣乾坑的硬質水碎熔渣製造裝置。 又，在上述任何的硬質水碎熔渣製造裝置中，上述接 受器係傾注溜槽較理想。又，該傾注溜槽係於傾動方向側 之兩端部具有排出口，且從該傾注溜槽之最下底部一直到 各排出口之下端之高度互相不同的傾注溜槽更理想。又， 上述接受器爲上述任何之傾注溜槽的硬質水碎熔渣製造裝 置中，以中繼溜槽連接上述傾注溜槽與該吹製箱之間，而 以水碎溜槽連接該吹製箱與水碎槽之間；在該水碎槽一併 設置淤漿泵，排煙管述的硬質水碎熔渣製造裝置更理想。 又在本發明也提供一種硬質水碎熔渣之製造方法，屬 (請先閱讀背面之注意事項再填寫本頁) ·裝·539659 A7 B7 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 5. Description of the invention (1) (Technical field to which the invention belongs) The present invention relates to a manufacturing method and device for hard water crushing and melting according to the pre-furnace method. In particular, a method and a device for stably and mass-producing a good and hard crushed slag suitable for use as a fine aggregate for concrete with a relatively low cost investment are proposed. (Background Art) Blast furnace slag is sprayed with high-pressure cooling water directly in the molten slag and is granulated by rapid cooling. Most of them are used as so-called crushed slag. The quenching treatment according to this high-pressure water is called a crushing treatment. According to their properties, water crushed slag is mainly divided into "soft water crushed slag" which is mainly used as raw materials for cement and "hard water crushed melt" which is suitable for fine aggregates for concrete. However, most of the conventionally obtained slags are soft crushed slags suitable for concrete raw materials. For hard water crushed slag suitable for thin concrete plates for concrete, it is specified in J-I S A 5 0 11. At present, there are two methods known as a method for producing the crushed slag. One method is the "front-of-furnace method" where the slag chute of the blast furnace is directly connected to the water crushing manufacturing equipment, and the water crushing treatment is performed near the blast furnace; the other method is to accept the molten slag in the slag pot and then transfer it to the setting to compare with the blast furnace The "out-of-furnace method" for water crushing processing by water crushing manufacturing equipment in other places. Among them, as the method for manufacturing the hard water crushed slag, the above-mentioned method outside the furnace is mainly adopted. The reason is that in the case of the out-of-furnace method, the temperature of the molten slag before the crushing process is low, so it is suitable for the production of hard crushed slag with a high specific gravity. Generally, in the method outside the furnace, the molten slag is connected under the casting bed of the blast furnace (please read the precautions on the back before filling this page) This paper size applies to China National Standard (CNS) A4 (210X 297 mm)- 4- 539659 A7 B7 V. Description of the invention (2) (Please read the precautions on the back before filling in this page) After receiving the slag pot, move it out to the crushing manufacturing equipment located in another place. The slag pot is moved to the crushing equipment and then crushed. Therefore, the temperature of molten slag is sufficiently reduced during operations such as transportation. In addition, the supply flow rate of molten slag from the slag pot to the crushing production equipment can be easily controlled to be constant, so the flow rate rarely changes greatly on the way. Therefore, if the spray water from the blowing nozzle in the water crushing manufacturing equipment is supplied at a certain flow rate, the water / slag ratio can be constantly maintained at a certain ratio. In this way, there is less variation in the quality of the generated hard water crushed slag, and it also has the feature of avoiding the danger of water vapor explosion even if the molten slag flow rate is excessive. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. On the other hand, in the case of the furnace front method, there is a slag chute and a water crushing manufacturing device without a buffer part, so the slag temperature is always high, The condition directly affects the crushing manufacturing equipment. Generally, from the beginning of tapping to the end, the temperature or flow of molten slag will vary greatly. -Therefore, even if the jet water for the blowing nozzle is supplied at a certain flow rate, the quality of water slag cannot be stabilized only in this condition, and the temperature of the slag is also high. Therefore, soft slag is the main cause. A mixture containing a small amount of hard slag. In addition, in the case of this method, it is limited to the initial stage of tapping when the temperature of the molten slag is low, and it is easy to produce hard water crushed slag with a high specific gravity. Therefore, it can also be selected from the manufactured water crushed slag. Specification of hard water crushed slag. In addition, only a small amount of hard water crushed slag can be obtained, so the cost of selection is poor and the efficiency is poor. Japanese Patent Publication No. 6-3 9 3 4 0 proposes a method for spraying cooling water for slag blowing from four blowing nozzles, and can independently control the paper size to the Chinese National Standard (CNS) A4 specification (210X297) Mm)-5- 539659 A7 B7 V. Description of the invention (3) (Please read the precautions on the back before filling in this page) The water pressure of each nozzle, and the hard water can be freely produced in the front of the furnace. Slag and soft water crushed slag technology. Also, in this technique, coarse or fine particles of hard and soft two-water slag can be produced by adjusting the water pressure of cooling water sprayed on the molten slag. However, in this technology, although crushed slag with different particle sizes can be produced, the temperature of the molten slag after tapping has not been considered over time (gradually rising), and it is not possible to manufacture a large amount in a stable manner. High specific gravity water crushes slag. Therefore, if it is intended to stably produce a large amount of hard water crushed slag with a high specific gravity, the above-mentioned method outside the furnace may be more advantageous. The above describes the characteristics of the conventional technique of the furnace-outside and front-of-furnace modes. In this way, comparing the two methods from the viewpoint of stably producing good and cheap hard water crushed slag, the two methods have the following disadvantages. That is, if the manufacturing method of hard water crushing slag according to the method outside the furnace is used, the equipment for guiding the molten slag from the slag chute into the slag pot, and the slag pot to the blast furnace At a distance, there are auxiliary equipment such as road springs or diesel vehicles where there are facilities for manufacturing crushed slag. This is because it requires a huge investment, so it cannot be said that it is a cheap method for manufacturing hard water crushed slag, and it still needs to be improved. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs On the other hand, in the manufacturing method of hard water crushed slag according to the pre-furnace method, the water crushing treatment conditions cannot correspond to the outflow conditions (speed, temperature, amount) of the molten slag Due to the change, it is also impossible to avoid mixing with soft water crushed slag, and it is difficult to manufacture high-quality hard water crushed slag without stability. 0c invention summary) This paper standard applies Chinese National Standard (CNS) A4 specification (210X 297 mm) '~ " " a 539659 A7 B7 printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 5. Description of the invention (4) The purpose of the present invention is to propose a solution to the problems of conventional technology The above-mentioned problems, in particular, are the techniques used for the stable and large-scale production of good quality, inexpensive hard water crushed slag with relatively inexpensive investment. As a result of intensive research to achieve the above-mentioned object, the inventors and others have developed new manufacturing equipment and manufacturing technology related to hard water crushing and melting which has the following gist. That is, the hard water crushed slag manufacturing device of the present invention belongs to the water crushed slag manufacturing device which guides the molten slag discharged from the local furnace to the blowing box through the slag chute, and is characterized in that: The melted supply control receiver is provided between the slag chute and the blowing box. In this device, it is preferable that the receiver is a tiltable receiver. Furthermore, in any of the above manufacturing apparatuses, the receptacle is tiltable in a direction different from the flow direction of the slag of the slag chute, and a blowing box is provided in a tilting direction, and is different from the tilting direction. Other hard slag slag manufacturing devices with _ slag dry pits in the tilting direction. Further, in any of the above-mentioned hard water crushing slag manufacturing apparatuses, it is preferable that the receiver is a pouring chute. Further, the pouring chute is preferably a pouring chute having different heights from the bottom of the pouring chute to the lower end of each of the discharge ports at both ends of the tilting direction side. In addition, in the above-mentioned receiver, in any of the above-mentioned hard slag slag manufacturing devices, the relay chute is connected between the pouring chute and the blowing box, and the water chute is connected between the blowing box and the water crushing chute. Between the tanks, a slurry pump is set together in the water crushing tank, and the hard water crushing slag manufacturing device described in the smoke exhaust pipe is more ideal. The present invention also provides a method for manufacturing hard water crushed slag, (please read the precautions on the back before filling this page)
、1T d 本紙張尺度適用中國國家標準（CNS ) A4規格（210 X 297公釐） 539659 A7 B7 五、發明説明（5) (請先閱讀背面之注意事項再填寫本頁) 於將從高爐所排出之熔融熔渣經由熔渣溜槽引導至吹製箱 的製造水碎熔渣之方法，其特徵爲：將該熔渣引導至設在 該熔渣溜槽之間的熔渣接受器，在該接受器進行熔融熔渣 至該吹製箱之供給控制者。又在該硬質水碎熔渣之製造方 法中由流進該接受器之熔渣量及該接受器之儲存熔渣量， 看淸該接受器之傾動時期，操作傾動方向及傾動角，控制 成使一定流量之熔融熔渣供給至該吹製箱較理想。 又，在上述任何之專利方法，提供一種硬質水碎熔渣 之製造方法中，作爲上述接受器使用如申請專利範圍第2 項所述之接受器，包含： (1 )對於該接受器之熔渣流入量比來自該接受器之 熔渣的目標供給流量少時，將該接受器朝熔渣乾坑側傾動 而將溶融熔渣排出至熔渣乾坑，一面恢復其傾動角一面儲 存熔渣一直到使得目標供給流量之熔融熔渣成爲可一定地 供」铪的過程； 經濟部智慧財產局員工消費合作社印製 (2 )對於該接受器之熔渣流入量與來自該接受器之 熔渣的目標供給流量大約相同時，將該接受器朝該吹製箱 側傾動而將一定流量之熔融熔渣供給於該吹製箱的過程， 及 (3 )對於該接受器之熔渣流入量比來自該接受器之 熔渣的目標供給流量多時，操作該接受器之傾動角而從兩 排出口溢流熔融熔渣，將一定流量之熔融熔渣從該接受器 供給於該吹製箱的過程， 將對於該吹製箱之熔融熔渣供給流量控制成一定者。 本紙張尺度適用中國國家標準（CNS ) A4規格（210X 297公釐） 539659 A7 B7 五、發明説明（6) (請先閲讀背面之注意事項再填寫本頁) 又，在上述任何之製造方法，也提供一種硬質水碎熔 渣之製造方法中，作爲上述接受器使用如申請專利範圍第 5項所述之傾注溜槽，包含： (1 )對於該傾注溜槽之熔渣流入量比來自該傾注溜 槽之熔渣的目標供給流量少時，將該傾注溜槽朝該較高排 出口側傾動而將溶融熔渣排出至熔渣乾坑，一面恢復其傾 動角一面儲存熔渣一直到使得目標供給流量之熔融熔渣成 爲可一定地供給的過程； (2 )對於該傾注溜槽之熔渣流入量與來自該傾注溜 槽之熔澄的目標供給流量大約相同時，將該傾注溜槽朝較 低排出口側傾動而將一定流量之熔融熔渣供給於該吹製箱 的過程，及 (3 )對於該傾注溜槽之熔渣流入量比來自該傾注溜 槽之熔渣的目標供給流量多時，將該傾注溜槽實質上作爲 水-平，從兩排出口溢流熔融熔渣，並將~定流量之熔融熔 渣從該傾注溜槽之該較低排出口供給於該吹製箱的過程， 經濟部智慧財產局員工消費合作社印製 將對於該吹製箱之熔融熔渣供給流量控制成一定者較 理想。 (發明之最佳實施形態） 本發明係一種不必將水碎製造設備設在隔著距離，藉 由配置於高爐近旁的爐前方式之改良，俾高選擇性地生成 局品質之硬質水碎熔渣，又安定多量地製造的技術。一般 ，水碎製造設備係由吹製箱，水碎溜槽，脫水機，儲藏裝 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） -9- 539659 A7 B7 五、發明説明（7 ) 置等所構成；吹製箱係由具有複數冷卻水噴嘴之板等所構 成。 (請先閱讀背面之注意事項再填寫本頁) 在本發明中，提供一種硬質水碎熔渣製造裝置，屬於 將從高爐所排出之熔融熔渣經由熔渣溜槽引導至吹製箱的 水碎熔渣製造裝置，其特徵爲：在該熔渣溜槽與該吹製箱 之間具有該熔渣之供給控制用接受器的發明。也提供一種 藉由設置此等供給控制用之接受器，將從高爐所排出之熔 融熔渣經由熔融溜槽引導至該熔渣接受器，並將該接受器 使用作爲緩衝接受器而可進行熔融熔渣至該吹製箱之供給 控制的硬質水碎熔渣之製造方法。 經濟部智慧財產局員工消費合作社印製 在該硬質水碎熔渣製造裝置中，該接受器係可傾動之 接受器者較理想。具體地例示，將從高爐所排出之熔融熔 渣，引導至設於熔渣溜槽之熔融熔渣排出端的末端部（較 理想是，延長既設之熔渣溜槽所形成）之可傾動的接受器 中一，而由對於該接受器之流入熔澄量及該接受器之儲存熔 渣量，究明該接受器之傾動時期，操作傾動方向及傾動角 度，控制成使得一定流量之熔融熔渣直接供給於該吹製箱 。由此，成爲安定地製造出高品質之硬質水碎熔渣。 作爲上述之硬質水碎熔渣製造裝置之更理想之體態， 可例示一種硬質水碎熔渣製造裝置，該接受器係朝與該熔 渣溜槽的熔渣之流動方向不同方向可傾動，於一傾動方向 設有吹製箱，又於與該傾動方向不同之其他傾動方向設有 熔渣乾坑者。又，使用該硬質水碎熔渣製造裝置，則可提 供一種硬質水碎熔渣之製造方法，包含： 本紙張尺度適用中國國家標準（CNS ) A4規格（210 X 297公釐） -10- 539659 A7 B7 五、發明説明（8 ) (請先閱讀背面之注意事項再填寫本頁) (1 )對於該接受器之熔渣流入量比來自該接受器之 熔渣的目標供給流量少時，將該接受器朝熔渣乾坑側傾動 而將溶融熔渣排出至熔渣乾坑，一面恢復其傾動角一面儲 存熔渣一直到使得目標供給流量之熔融熔渣成爲可一定地 供給的過程； (2 )對於該接受器之熔渣流入量與來自該接受器之 熔渣的目標供給流量大約相同時，將該接受器朝該吹製箱 側傾動而將一定流量之熔融熔渣供給於該吹製箱的過程， 及 (3 )對於該接受器之熔渣流入量比來自該接受器之 熔渣的目標供給流量多時，操作該接受器之傾動角而從兩 排出口溢流熔融熔渣，將一定流量之熔融熔渣從該接受器 供給於該吹製箱的過程， 將對於該吹製箱之熔融熔渣供給流量控制成一定者。 經濟部智慧財產局員工消費合作社印製 _亦即，上述接受器之功能係在從高爐所排出的熔融熔 '渣之流量超過供給於吹製箱之熔融熔渣流量時，藉將成爲 剩餘分量的熔融熔渣從該接受器朝滑動乾坑排出（溢流） 等，能經常地製造適當的硬質水碎熔渣製造環境。 又，該接受器之功能係從高爐所排出的熔融熔渣之流 量較少的出鐵初期時也有效地作用。例如，一直達到供給 於吹製箱之目標的熔融熔渣流量爲止，將該接受器傾動於 熔渣乾坑，首先排出至該熔渣乾坑內，然後在成爲可得到 目標之熔渣供給流量時，調整傾動角，能將一定流量之熔 融熔渣供給於吹製箱，即可製造安定之硬質水碎熔渣。 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） -11 - 539659 A7 B7 五、發明説明（9 ) (請先閱讀背面之注意事項再填寫本頁) 又，作爲從高爐所排出的熔融熔渣之流量較少的出鐵 初期之其他對應，係藉將熔融熔渣暫時地儲存於該接受器 內，而儲存某一程度時，則朝吹製箱側傾動，能使一定流 量之熔融熔渣經常地供給於吹製箱。又，若在該時無法再 供給一定流量，則藉將傾動角恢復成原來方向，再將熔融 熔渣儲存於該接受器內也可以。其他，如水碎製造設備發 生故障時，或不是製造硬質水碎熔渣而是擬製造徐冷熔渣 之情形等，也能有效地使用該接受器。 又，該接受器之作用係在降低熔融熔渣之溫度上，適 用於硬質水碎熔渣之製造，惟爲了該製造而溫度降低不充 分時，在熔融熔渣流至從接受器噴射冷卻水之吹製箱之間 設置中繼溜槽（未圖示），將該熔融熔渣流至該中繼溜槽 ，而能降低該熔融熔渣之溫度也可以。 (賓施例） 以下，依據圖式詳述本發明之實施例。 經濟部智慧財產局員工消費合作社印製 將本發明適用於具備熔渣乾坑之高爐的佈置例示於第 1圖及第2圖。兩圖係以附加於習知設備之形式，表示倂 設本發明裝置之例子，惟本發明係並不被拘束在該例子者 。在圖中表示鄰接於設在朝熔渣乾坑3 ( 3 /係既設的熔 渣乾坑）的熔渣溜槽2之端部的該熔渣乾坑3，作爲本發 明之接受器配置傾注溜槽4之例子。該例子中，將從傾注 溜槽4簡捷予以排出（溢流）的剩餘分量的熔融熔渣，肯g 直接或間接地排出至熔渣乾坑3內之故，因此後續處理也 本紙張尺度適用中國國家標準（CNS ) A4規格（210X 297公釐） -12- 539659 A7 B7 五、發明説明（10) 成爲容易。特別是，水碎製造設備發生故障時，或不是製 造水碎熔渣而是擬製造徐冷熔渣之情形也很方便。 (請先閱讀背面之注意事項再填寫本頁) 本發明之較適當形態，係在設於高爐B F之出鐵溜槽 1之延長上的熔渣溜槽3，而傾注溜槽4設成可傾動於直 交於流在熔渣溜槽2中之熔渣流的方向。在該傾注溜槽4 之傾動方向之兩側，上述熔渣乾坑3位於其中之一方側， 而具備水碎噴嘴之吹製箱5直接或經由中繼槽（未圖示） 配設於另一方側。又在該吹製箱5之下游側連設有水碎槽 6，又在其下游側連設有水碎槽7。又，圖示之8係既設 之習知水碎槽；圖示之9係脫水器，用以分離水碎熔渣與 循環冷卻水者。如此，經該脫水器被脫水之水碎熔渣，係 經由運送機1 0被搬運至儲存槽1 1，又視需要，在該儲 存槽1 1之下游側設有整粒機。該整粒機爲將水碎熔渣作 爲混凝土細骨材成爲適當之形態（粒徑）所用者。 經濟部智慧財產局員工消費合作社印製 _又藉由設於上述傾注溜槽4與吹製箱5之間的中繼溜 槽（未圖示），控制熔融熔渣之流下，來調整（降低）被 處理熔融熔渣之溫度也可以。又，對於使用於吹製時之冷 卻水，成爲從既存水碎設備之吹製水配管分歧而供給於吹 製箱5也可以；而製造硬質水碎熔渣時，發生在水碎槽7 ，8之水蒸汽係放散將排煙管1 2連接於設在既設水碎槽 8的煙窗也可以。 如此所製造之硬質水碎熔渣，係從水碎槽7經由游漿 泵1 3供給於脫水器9也可以，或是合流既存水碎槽8而 進行脫水及儲存也可以。倂用既存之水碎設備降低設備成 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） -13- 539659 A7 _ B7 五、發明説明（11) 本者較理想。 (請先閲讀背面之注意事項再填寫本頁) 以下，作爲本發明的硬質水碎熔渣製造裝置之特別優 異之體態，可例示上述傾注溜槽使用於傾動方向側之兩端 部具有排出口，且從該傾注溜槽之最下底部至各排出口之 下端的高度互相不同之傾注溜槽的硬質水碎熔渣製造裝置 °對於依該設備的硬質水碎之製造方法具體地說明。 使用該硬質水碎熔渣製造裝置，則可提供包含： (1 )對於該傾注溜槽之熔渣流入量比來自該傾注溜 槽之熔渣的目標供給流量少時，將該傾注溜槽朝該較高排 出□側傾動而將溶融熔渣排出至熔渣乾坑，一面恢復其傾 動角一面儲存熔渣一直到使得目標供給流量之熔融熔渣成 爲可一定地供給的過程； (2 )對於該傾注溜槽之熔渣流入量與來自該傾注溜 槽之熔渣的目標供給流量大約相同時，將該傾注溜槽朝較 低腓出口側傾動而將一定流量之熔融熔渣供給於該吹製箱 的過程，及 經濟部智慧財產局員工消費合作社印製 (3 )對於該傾注溜槽之熔渣流入量比來自該傾注溜 槽之熔渣的目標供給流量多時，將該傾注溜槽實質上作爲 水平，從兩排出口溢流熔融熔渣，並將一定流量之熔融熔 渣從該傾注溜槽之該較低排出口供給於該吹製箱的過程， 將對於該吹製箱之熔融熔渣供給流量控制成一定的硬 質水碎熔渣之製造方法。 第3圖係表示從高爐所排出之熔融熔渣之流量與時間 的關係。第4圖係表示作爲本發明之接受器，上述之兩排 本紙張尺度適用中國國家標準（CNS ) A4規格（210X 297公釐） -14- 539659 A7 B7 五、發明説明（12) 出口之高度互相地不同的傾注溜槽4之傾動順序。 (請先閲讀背面之注意事項再填寫本頁} 經濟部智慧財產局員工消費合作社印製 首先，在該方法中，將供給於硬質水碎熔渣製造設備 (吹製箱之目標的熔融熔渣流量設定4 t /m i n。一般 熔融熔渣之流量係如第3圖所示，從開始出鐵後徐徐地上 昇熔融熔渣流量之故，因而在出鐵初期中，未達到運轉硬 質水碎製造設備所用之目標的熔融熔渣流量。因此，一直 到成爲對於吹製箱之熔融熔渣之目標供於流量爲止，如第 4 ( b )圖所示地，將上述之傾注溜槽4傾動於該高排出 口側而將熔融熔渣全量排出至熔渣乾坑3。之後，在達到 目標之熔融熔渣流量時，如第4 ( c )圖所示，將該傾注 溜槽4傾動於排出口側使得熔融熔渣之流量成爲一定流量 5地供給於吹製箱5。然後，隨著來自高爐之熔融熔渣流 量之上昇，熔融熔渣之流量S能經常地成爲一定地，將該 傾注溜槽4之傾動角，如第4 ( d )圖所示，實質上水平 地ϋ持。在該傾注溜槽4之傾動方向側的兩端部設有排出 口 4 a，4 b，而在從該傾注溜槽之最下底部一直到各排 出口之下端的高度設有用以將上述熔渣流量維持在一定流 量S之差。爲了此，在該狀態下，即使來自高爐之熔融熔 渣流量超過供給於吹製箱之目標的熔融熔渣流量，該剩餘 分量係從排出口 4 a自動地也溢流至相反側之熔渣乾坑3 之故，因此一定流量S之熔融熔渣供給於吹製箱而被維持 。最後，在終了出鐵時，再如第4 ( b )圖所示，將該傾、 注溜槽4傾動於熔渣乾坑3側，將留在該傾注溜槽4內的 熔融熔渣全量地排出至熔渣乾坑3。 本紙張尺度適用中國國家標準（CNS ) A4規格（210X 297公釐） -15- 539659 A7 B7 五、發明説明（13) (請先閱讀背面之注意事項再填寫本頁) 作爲本發明之其他實施例，對於在出鐵初期全量排出 至熔渣乾坑3的熔融熔渣，也製造作爲硬質水碎熔渣的方 法，加以說明。 在該方法中，如第4 ( a )圖所示地，在出鐵初期中 ，該傾注溜槽4內儲存熔融熔渣，當達到某一程度，則如 第4 ( c )圖所示地，熔融熔渣之流量S成爲一定地將該 傾注溜槽4傾動於吹製箱5側，如此者無法保持一定流量 之供給，亦即無法將熔融熔渣之流量S保持在一定，則再 回到第4 ( a )圖所示地，將傾動恢復成原來方向而重複 將熔融熔渣儲存於該傾注溜槽4內的方法。 又，在此等實施例中，熔融熔渣之溫度係開始出鐵時 有1 4 6 0 °C者而在終了時徐徐地上昇至1 5 3 0 °C，惟 從高爐之槪要一直達到該接受器爲下降3 5 °C，而從熔渣 溜槽2與該接受器4朝吹製箱5之間降低約7 5 t之故， 因面在吹製箱5中，剛要噴射冷卻水之前，熔融熔渣係成 爲11350 °C〜1420 °C左右之溫度，爲充分滿足硬 質水碎熔渣之製造條件的狀態。 經濟部智慧財產局員工消費合作社印製 如上所述地依照本發明，藉由在高爐之熔渣溜槽與吹 製箱之間設置熔融熔渣之供給控制用接受器，成爲進行對 於該吹製箱之熔融熔渣的供給控制。由此，藉由爐前方式 也可高選擇性地生成良質之硬質水碎熔渣。因此，成爲在 沒有選別作業下廉價且安定地可得到良好之硬質熔渣，可 將熔融熔渣可供作爲混凝土用細骨材等之廣泛用途。 本紙張尺度適用中國國家標準（CNS ) A4規格（210X 297公釐） -16- 539659 A7 B7 五、發明説明（14) (圖式之簡單說明） (請先閱讀背面之注意事項再填寫本頁) 第1圖係表示在熔渣坑方式之高爐適用本發明之硬質 水碎熔渣製造設備的俯視圖。 第2圖係表示硬質水碎熔渣製造設備的主要部分放大 圖。 第3圖係表示從高爐所排出的熔融熔渣流纛與時間之 關係的圖表。 第4圖係表示接受器之傾動順序的說明圖。 主要元件對照表 1 出鐵溜槽 2 熔渣溜槽 3 熔渣乾坑 4 傾注溜槽 _ 5 吹製箱 6 水碎溜槽 7 水碎槽 經濟部智慧財產局員工消費合作社印製 8 既設水碎槽 9 脫水器 10 運送機 11 儲存槽 12 排煙管 13 淤漿泵 本紙張尺度適用中國國家標準（CNS ) A4規格（210 X 297公釐） -17-、 1T d This paper size applies Chinese National Standard (CNS) A4 specification (210 X 297 mm) 539659 A7 B7 V. Description of the invention (5) (Please read the precautions on the back before filling this page) The discharged molten slag is guided to a blowing box through a slag chute to produce a crushed slag method. The method is characterized in that the slag is guided to a slag receiver provided between the slag chute and the receiver. The device performs melting of the slag to the supply controller of the blowing box. In the manufacturing method of the hard water crushing slag, the amount of slag flowing into the receiver and the amount of stored slag in the receiver are controlled by the tilting period of the receiver, the tilting direction and the tilting angle of the operation. It is desirable to supply molten slag with a certain flow rate to the blowing box. In addition, in any of the above patent methods, a method for manufacturing a hard water crushed slag is provided, and the receiver described in item 2 of the scope of patent application is used as the receiver, including: (1) melting of the receiver When the slag inflow is less than the target supply flow of slag from the receiver, tilt the receiver to the slag dry pit side to discharge the molten slag to the slag dry pit, and store the slag while restoring its tilt angle Until the process of making the target supply flow of molten slag becomes a certain supply "; printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs (2) the inflow of slag and the slag from the receiver When the target supply flow rate is approximately the same, the process in which the receiver is tilted toward the blowing box to supply a certain flow of molten slag to the blowing box, and (3) the ratio of slag inflow to the receiver When the target supply flow rate of the slag from the receiver is large, the tilt angle of the receiver is operated to overflow the molten slag from the two outlets, and a certain flow of molten slag is supplied from the receiver to the blower. Box process, at a certain control by the molten slag flow rate of the supply of blowing tank. This paper size applies the Chinese National Standard (CNS) A4 specification (210X 297 mm) 539659 A7 B7 V. Description of the invention (6) (Please read the notes on the back before filling this page) Also, in any of the above manufacturing methods, There is also provided a method for manufacturing hard water crushed slag, using the pouring chute as described in item 5 of the patent application scope as the above receiver, including: (1) the slag inflow ratio for the pouring chute comes from the pouring chute When the target supply flow rate of the slag is small, the pouring chute is tilted toward the higher discharge port side to discharge the molten slag to the slag dry pit, and store the slag until the tilting angle is restored to the target supply flow rate. The molten slag becomes a process that can be supplied to a certain degree; (2) When the slag inflow of the pouring chute is about the same as the target supply flow of melting from the pouring chute, tilt the pouring chute toward the lower discharge port side The process of supplying a certain flow of molten slag to the blowing box, and (3) the target supply for the slag inflow of the pouring chute than the slag from the pouring chute When the flow rate is large, the pouring chute is substantially horizontal, and the molten slag overflows from the two discharge outlets, and the molten slag of a fixed flow rate is supplied to the blowing box from the lower discharge opening of the pouring chute. In the process, it is ideal for the consumer cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs to control the molten slag supply flow rate of the blowing box. (Best Embodiment of the Invention) The present invention is a kind of hard water crushing and melting with high quality by improving the method of arranging the front of the furnace near the blast furnace without setting the water crushing manufacturing equipment at a distance. The slag has a stable manufacturing technology. Generally, the crushing manufacturing equipment is made of blowing boxes, crushing chute, dewatering machine, and storage paper. The size of the paper is applicable to China National Standard (CNS) A4 (210X297 mm) -9-539659 A7 B7 V. Description of the invention (7 ), Etc .; the blowing box is composed of a plate with a plurality of cooling water nozzles, etc. (Please read the precautions on the back before filling in this page) In the present invention, a hard water crushing slag manufacturing device is provided, which belongs to the water crushing which guides the molten slag discharged from the blast furnace to the blowing box through the slag chute. The slag manufacturing apparatus is characterized by having an invention of a slag supply control receiver between the slag chute and the blowing box. It is also provided that by providing such a supply control receiver, the molten slag discharged from the blast furnace is guided to the slag receiver via a melting chute, and the receiver can be used as a buffer receiver to perform melt fusion. Manufacturing method of hard crushed slag with slag supply to the blowing box. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. In this hard water crushing slag manufacturing device, the receiver is a tiltable receiver. Specifically exemplified, the molten slag discharged from the blast furnace is guided to a tiltable receptacle provided at the end of the molten slag discharge end (ideally, formed by extending the existing slag chute) provided in the slag chute. First, from the inflow smelting amount of the receiver and the stored slag amount of the receiver, the tilting period of the receiver, the tilting direction and tilting angle of the operation are controlled, so that a certain flow of molten slag is directly supplied to the The blow box. As a result, high-quality hard water crushed slag is produced stably. As a more desirable form of the above-mentioned hard water crushing slag manufacturing device, a hard water crushing slag manufacturing device can be exemplified. The receiver is tiltable in a direction different from the flow direction of the slag of the slag chute. A blowing box is provided in the tilting direction, and a slag dry pit is provided in another tilting direction different from the tilting direction. In addition, using the hard water crushed slag manufacturing device, a method for manufacturing hard water crushed slag can be provided, including: This paper size is applicable to China National Standard (CNS) A4 (210 X 297 mm) -10- 539659 A7 B7 V. Description of the invention (8) (Please read the notes on the back before filling out this page) (1) When the slag inflow of the receiver is less than the target supply flow of slag from the receiver, The receiver is tilted toward the slag dry pit side to discharge the molten slag to the slag dry pit, while storing the slag while restoring its tilt angle until the target slag can be supplied to a certain supply flow; 2) When the slag inflow of the receiver is approximately the same as the target supply flow rate of the slag from the receiver, tilt the receiver toward the blowing box side to supply a certain flow of molten slag to the blower The process of making a box, and (3) when the inflow of the slag of the receiver is greater than the target supply flow of the slag from the receiver, the tilt angle of the receiver is operated to overflow the molten slag from the two outlets Will definitely The amount of the melted slag from the receptacle is supplied to the process tank blown, the control by the molten slag at a certain supply flow rate of the blowing tank. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs_ That is, the function of the above-mentioned receiver is that when the flow rate of the molten slag discharged from the blast furnace exceeds the flow rate of the molten slag supplied to the blowing box, it will become a surplus The molten slag can be discharged (overflowed) from the receiver to the sliding dry pit, etc., and an appropriate hard water crushed slag manufacturing environment can be frequently produced. The function of the receptacle is also effective in the early stage of tapping when the flow of molten slag discharged from the blast furnace is small. For example, until the target molten slag flow rate to be supplied to the blowing box is reached, the receiver is tilted into the slag dry pit, first discharged into the slag dry pit, and then the target slag supply flow rate is obtained At this time, the tilting angle can be adjusted to supply a certain flow of molten slag to the blowing box, and a stable hard water crushed slag can be produced. This paper size applies Chinese National Standard (CNS) A4 (210X297 mm) -11-539659 A7 B7 V. Description of the invention (9) (Please read the precautions on the back before filling this page) Also, it is discharged from the blast furnace The other correspondence of the early stage of tapping when the flow of molten slag is small, is that by temporarily storing the molten slag in the receiver, when it is stored to a certain extent, it is tilted toward the blowing box side, which can make a certain amount of flow. The molten slag is often supplied to a blowing box. If a certain flow rate cannot be supplied at this time, the tilt angle can be restored to the original direction, and the molten slag can be stored in the receiver. Others, such as when the crushing manufacturing equipment fails, or when the cold crushed slag is intended to be manufactured instead of the hard crushed slag, the receiver can be effectively used. In addition, the role of the receiver is to reduce the temperature of the molten slag, which is suitable for the production of hard water crushed slag, but when the temperature is not sufficiently reduced for the purpose of the manufacture, the molten slag flows to the cooling water spray from the receiver. A relay chute (not shown) is provided between the blowing boxes to flow the molten slag to the relay chute, and the temperature of the molten slag can be lowered. (Examples of Bins) Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. Examples of the arrangement of the present invention applicable to a blast furnace having a slag dry pit are shown in FIG. 1 and FIG. 2. The two figures show an example of a device provided by the present invention in a form attached to a conventional device, but the present invention is not limited to the example. The figure shows the slag dry pit 3 adjacent to the end of the slag chute 2 provided toward the slag dry pit 3 (3 / existing slag dry pit), and a pouring chute is provided as a receiver of the present invention. 4 example. In this example, the remaining amount of molten slag that is simply discharged (overflow) from the pouring chute 4 is directly or indirectly discharged into the slag dry pit 3, so the subsequent processing is also applicable to this paper. National Standard (CNS) A4 specification (210X 297 mm) -12- 539659 A7 B7 V. Invention description (10) becomes easy. In particular, it is also convenient when the crushing manufacturing equipment fails, or when it is intended not to produce crushed slag, but to produce cold-smelting slag. (Please read the precautions on the back before filling this page) A more suitable form of the present invention is the slag chute 3 provided on the extension of the iron chute 1 of the blast furnace BF, and the pouring chute 4 is provided to be tiltable in the orthogonal direction. In the direction of the slag flow in the slag chute 2. On both sides of the pouring chute 4 in the tilting direction, the above-mentioned slag dry pit 3 is located on one of the sides, and the blowing box 5 with a water crushing nozzle is arranged on the other side directly or via a relay tank (not shown). side. A crushing tank 6 is connected to the downstream side of the blowing box 5, and a crushing tank 7 is connected to the downstream side of the blowing tank 5. In addition, 8 shown in the figure is an existing conventional water crushing tank; 9 is a dehydrator used in the figure to separate water slag and circulating cooling water. In this way, the dewatered slag that has been dewatered by the dehydrator is transported to the storage tank 11 via the conveyor 10, and a granulator is provided downstream of the storage tank 11 if necessary. This granulator is used to make the crushed slag as a concrete fine aggregate into a suitable form (particle size). Printed by the Employees' Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs_The relay chute (not shown) located between the pouring chute 4 and the blowing box 5 is used to control the flow of molten slag to adjust (reduce) the The temperature for processing molten slag is also acceptable. In addition, the cooling water used during blowing may be divided from the blowing water piping of the existing crushing equipment and supplied to the blowing box 5; while the production of hard crushed slag occurs in the crushing tank 7, The water vapor system of 8 may be connected by connecting the smoke exhaust pipe 12 to a smoke window provided in the existing water crushing trough 8. The hard water crushed slag manufactured as described above may be supplied from the water crushing tank 7 to the dehydrator 9 through the slurry pump 13 or may be combined with the existing water crushing tank 8 for dehydration and storage.倂 Use existing crushing equipment to reduce equipment cost. Paper size is applicable to Chinese National Standard (CNS) A4 specification (210X297 mm) -13- 539659 A7 _ B7 V. Description of the invention (11) It is ideal. (Please read the precautions on the back before filling in this page.) Below, as a particularly excellent form of the hard water crushed slag manufacturing device of the present invention, the above-mentioned pouring chute can be exemplified to have discharge ports at both ends of the tilting direction side. In addition, the hard water crushing slag manufacturing device of the pouring chute having different heights from the lowermost bottom of the pouring chute to the lower end of each discharge port will be specifically described for the manufacturing method of the hard water crushing according to the equipment. Using the hard water crushing slag manufacturing device, it can provide: (1) When the inflow of slag to the pouring chute is less than the target supply flow of slag from the pouring chute, the pouring chute is directed toward the higher Discharge the slag and discharge the molten slag to the slag dry pit, while storing the slag while restoring its tilt angle, until the target slag can be supplied to a certain level; (2) For the pouring chute When the inflow of slag is about the same as the target supply flow rate of the slag from the pouring chute, the pouring chute is tilted toward the lower fin exit side to supply a certain flow of molten slag to the blowing box, and Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs (3) When the inflow of the slag in the pouring chute is greater than the target supply flow of the slag from the pouring chute, the pouring chute is essentially horizontal and exits from both rows The process of overflowing molten slag and supplying a certain flow of molten slag from the lower discharge port of the pouring chute to the blowing box will melt the blowing box. Producing slag supply flow rate is controlled to a certain hard water the crushed slag method. Fig. 3 is a graph showing the relationship between the flow rate of molten slag discharged from the blast furnace and time. Figure 4 shows that as the receiver of the present invention, the above two rows of paper sizes are applicable to the Chinese National Standard (CNS) A4 specification (210X 297 mm) -14- 539659 A7 B7 V. Description of the invention (12) The height of the export The tilting sequences of the pouring chute 4 are mutually different. (Please read the notes on the back before filling out this page} Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs First, in this method, it will be supplied to hard water crushed slag manufacturing equipment (the target molten slag for blowing boxes) The flow rate is set to 4 t / min. Generally, the flow rate of molten slag is shown in Figure 3, and the molten slag flow rate is gradually increased from the beginning of tapping. Therefore, during the initial stage of tapping, the production of hard water crushing was not achieved. The target molten slag flow rate used in the equipment. Therefore, until the target supply flow rate for the molten slag in the blowing box is provided, as shown in FIG. 4 (b), the above-mentioned pouring chute 4 is tilted to the The molten slag is fully discharged to the slag dry pit 3 at a high discharge port side. After reaching the target molten slag flow rate, the pouring chute 4 is tilted to the discharge port side as shown in FIG. 4 (c). The molten slag flow rate is supplied to the blowing tank 5 at a constant flow rate 5. Then, as the molten slag flow rate from the blast furnace increases, the molten slag flow rate S can often be constant, and the pouring chute 4 Tilt angle As shown in Fig. 4 (d), it is held substantially horizontally. Discharge outlets 4a, 4b are provided at both ends of the tilting direction side of the pouring chute 4, and the bottom from the pouring chute The height from the bottom to the lower end of each discharge port is provided to maintain the above-mentioned slag flow rate at a certain flow rate S. For this reason, in this state, even if the molten slag flow rate from the blast furnace exceeds the target of supplying to the blowing box The remaining amount of molten slag flow is automatically overflowed from the discharge port 4 a to the slag dry pit 3 on the opposite side, so the molten slag with a certain flow rate S is supplied to the blowing box and maintained. At the end of tapping, as shown in Fig. 4 (b), the tilting and injection chute 4 is tilted to the slag dry pit 3 side, and the molten slag remaining in the pouring chute 4 is completely discharged to Slag dry pit 3. This paper size applies to Chinese National Standard (CNS) A4 specification (210X 297 mm) -15- 539659 A7 B7 V. Description of invention (13) (Please read the precautions on the back before filling this page) As another embodiment of the present invention, for the entire amount of The molten slag of the dry pit 3 will also be described as a method of producing hard water crushed slag. In this method, as shown in FIG. 4 (a), in the initial stage of tapping, the pouring chute 4 is stored in the pouring chute 4. When the molten slag reaches a certain level, as shown in FIG. 4 (c), the flow rate S of the molten slag becomes constant, and the pouring chute 4 is tilted to the blowing box 5 side, so that a certain flow rate cannot be maintained. Supply, that is, the flow rate S of the molten slag cannot be kept constant, return to the figure 4 (a), restore the tilting to the original direction, and repeatedly store the molten slag in the pouring chute 4. Moreover, in these examples, the temperature of the molten slag is 1460 ° C at the beginning of iron production and gradually rises to 1530 ° C at the end, but from the blast furnace. In order to reach the receiver to lower by 3 5 ° C, and from the slag chute 2 and the receiver 4 to the blowing box 5 is lowered about 7 5 t, because the blowing box 5 is just about to spray Before cooling the water, the molten slag is at a temperature of about 11350 ° C ~ 1420 ° C. In order to fully meet the requirements of hard water crushing slag Create conditions for the state. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs in accordance with the present invention as described above, by providing a receiver for controlling the supply of molten slag between the slag chute of the blast furnace and the blowing box, the blowing box Supply control of molten slag. Accordingly, a high-quality hard water crushed slag can also be produced with high selectivity by the furnace front method. Therefore, it is possible to obtain a good hard slag inexpensively and stably without a sorting operation, and the molten slag can be used for a wide range of applications such as a fine aggregate for concrete. This paper size applies to Chinese National Standard (CNS) A4 specification (210X 297 mm) -16- 539659 A7 B7 V. Description of the invention (14) (Simplified description of drawings) FIG. 1 is a plan view showing a hard crushed slag manufacturing equipment to which the present invention is applied in a slag pit type blast furnace. Fig. 2 is an enlarged view showing a main part of a hard water crushing slag manufacturing facility. Fig. 3 is a graph showing the relationship between the molten slag stream discharged from the blast furnace and time. Fig. 4 is an explanatory diagram showing the tilting sequence of the receiver. Comparison table of main components 1 Iron chute 2 Slag chute 3 Slag dry pit 4 Pouring chute _ 5 Blowing chute 6 Water crushing chute 7 Conveyor 10 Conveyor 11 Storage tank 12 Smoke exhaust pipe 13 Slurry pump The paper size is applicable to China National Standard (CNS) A4 (210 X 297 mm) -17-