» Refractory Castables are systems Al 2 O 3-SiC-C, MgO-C (C-contain 5-10%). Plastic Mixes are used for ramming of brick joint - for example in a blast furnace bottom (C-contain 85-90), a basic oxygen furnace bottom (C-contain 5-10%). Benefits include improved safety, It is cooling device that maintain the innermost profile of blast furnace. This furnace has an historical rate production of 2.40ton/m 3.day. The main significant feature of blast furnace campaign life is cooling of refractory lining. Refractory Lining is a layer of material which can resist high heat temperature in the kiln or furnace. for lining blast furnaces depending on the specific installation conditions and loading. If you are going to buy refractory lining in kilns, furnace or electric arc furnace, please contact RS Kiln Refractory Company! to build the Lucy Furnace, the largest blast furnace ever de-signed. number of years until the refractory lining of the furnace begins to fail. endstream endobj 172 0 obj <>/Metadata 16 0 R/Outlines 36 0 R/PageLayout/OneColumn/Pages 169 0 R/StructTreeRoot 39 0 R/Type/Catalog>> endobj 173 0 obj <>/ExtGState<>/Font<>/XObject<>>>/Rotate 0/StructParents 0/Type/Page>> endobj 174 0 obj <>stream The cooling of refractory is the essential feature for the blast furnace campaign life. aggregates lining. 7 Magnezit Group offers and supplies refractories in complex for Blast Furnaces lining. The auxiliary furnaces or hot blast stoves, which heat the air for the blast furnace, are also lined with refractories. This model is used for analysis the effect of refractory lining thickness with different cooling rate. Refractory lining of blast furnace A modern blast furnace (BF) is refractory lined to protect the furnace shell from the high temperatures and abrasive materials inside the furnace. r'fàm©î¹þNËlÌê´5eÔ¤7OGõÕzÿ Ü%ªÌÅbß YTÃ=?$Ê Additionally, there have been improvements in the science and understanding of lining blast furnaces. The #2 blast furnace hearth lining of Companhia Siderurgica Nacional (CSN) are composed graphite refractory blocks. This analysis gives the true hearth lining wear at the beginning of the blast furnace campaign and until no alterations appears inside the hearth lining refractory. The cooling of refractory lining can be done by stave cooler. From a materials requirements perspective, a blast furnace refractory lining may be split into five areas from top to bottom. Specialists of both companies led and supervised the installation of 40 tons of Seven Gun 82 NX in the burning chamber/burning duct of hot blast stove n29 – blast furnace 9. However, most of the lining works are made of certain standard refractory shapes and sizes which are always available in … Upper shaft: In this low temperature area, abrasion by the solid burden is the primary mode of wear. ÑÐLb=à©mDä/qM The mathematical description, algorithm and program of calculation the temperature fields in any vertical and horizontal cross-section of the devil lining are developed with use of the indications of the temperature sensing transducer (to 1000) in the oven lining. h�b```�bf��� cB��s~0��r+``؝���h�D��($���� ! Ö#`fm^.1¦²¡_ÒáÔ¢=n g¹´®3w'eÊRG2éeOjïÔ ÏѨߦÁ]qÄÈsÞÀ^®|Т6¢koçë Õ²Î_z=À:ê6k%vþeî¬Ô9¬s]s} D~Môòð}Y$úêØãU3¤Ûk¦Ý#ü¤GÊý Ìaß¼ z5lddÝPêà**»tuáÝÅKbÛÿû ¯ÍÖîMÙG. The refractory lining with stave 3D model in blast furnace is analyzed and design by using the ANSYS software. Today the refractory lining is frequently maintained and improved by adding various elements such as titania. Furnaces. An EAF utilizes an 8 to 25 megavolt ampere transformer. 6G}|��Y��@��N�;�h���ٟ���0�CE��E�p5D�VKD���Q\1b�F̀�#!G���E�?��P���5d��9w�`�z��v�lhw�|/�����7ɚ� ;:� =vEO耞'�bµ Q�L�6Ƙ@�+:*ַ��,^'YA8�^��M�}.�w�,/��|�%�2h(�DT(C�p+�?� �z�x��@O�kL�ֽ�ȧx��܆�4_/��A��oϼ��������0�|�,)#+^���H�4vv���+;���v1�^�:I�ټ ��kR��@i�6D Lining cooling by stave technology is one of the products of such efforts. Refractory and brick materials are needed to line huge shaft-like blast furnaces in which the molten pig is formed. Furnace Refractories . The blast furnace ditch is a channel that leads to high-temperature molten iron or slag. The target of the intervention was to reprofile the original refractory lining which had been damaged due to collapsed bricks. Our SiC 85P, a silicate bonded SiC, has proven to be a cost-effective solution. 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