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1、2019/7/9/21:45:12,冶金工程专业英语,金 焱,2019/7/9/21:45:12,Unit3 Blast Furnace,2019/7/9/21:45:12,1. Introduction,As an introduction to a discussion of blast furnace construction, it is desirable to establish an understanding of the terms applied to the important dimensions of the furnace. These are shown grap
2、hically in Fig. 2-6. However, the following terms may require additional explanation.,2019/7/9/21:45:12,Fig. 2-6 Schematic of a blast furnace, illustrating some of the defined terms,27. top ring: 炉顶钢圈。 28. top cone: 高炉炉头（炉顶锥形部分）。 29. offtake: 出口；泄水处；排水渠；支管；分接头。,32. shell: 炉壳。 33. bustle pipe: 热风围管。
3、34. tuyere stock: 热风支管。 35. tuyere breast: 风口大套。 36. cinder notch: 出渣口。 37. emergency iron notch: 紧急出铁口。 38. iron notch: 出铁口。 39. under hearth: 高炉炉底。 40. furnace pad: 高炉基础。,2019/7/9/21:45:12,Hearth DiameterThe diameter of the circle determined by the inside face of the refractory lining, excluding a
4、ny increases in the wall thickness at the tapholes. Hearth LineThe horizontal line at the intersection of a vertical line through the nose of the tuyere cooler and sloping line of the bosh. With ceramic-lined boshes, the line through the noses of the bosh plates determines the slope of the bosh.,1.
5、hearth diameter: 炉缸直径。 2. taphole: 出铁口。 3. tuyere: 风口。 4. bosh: 炉腹。 5. ceramic-lined: 陶瓷内衬。,2019/7/9/21:45:12,Height of HearthThe vertical distance between the hearth line and the centerline of the taphole. The latter is determined by the center of the taphole opening in the hearth jacket. Bosh Angl
6、eThe acute angle formed by a horizontal line and the slope of the bosh. Bosh LineThe horizontal line at the intersection of the slope of the bosh and the vertical section of the lower stack or, if there is no vertical section, at the intersection of the slope of the bosh and the batter of the inwall
7、.,6. hearth jacket: 炉缸外壳。 7. inwall: 内壁，炉墙；炉里衬；高炉炉身。,2019/7/9/21:45:12,Bosh DiameterThe diameter of the inside face of the lining at the bosh line. This is also the diameter of the straight section above the bosh. Height of BoshThe vertical distance between the hearth and bosh lines. Inwall BatterTh
8、e negative slope of inwall expressed numerically as the base of a right triangle whose altitude is 30.48 mm and whose hypotenuse is the slope of the inwall. Bottom Inwall LineThe horizontal line through the intersection of the vertical line of the straight section and the inwall batter.,8. inwall ba
9、tter: 炉身坡度。 9. hypotenuse: 弦，斜边。,2019/7/9/21:45:12,BellyA cylindrical section of the lower stack, which connects the upper bosh diameter with the largest diameter of the lower stack. Bend LineThe horizontal line at the upper termination of the inwall batter. Height of InwallThe vertical distance bet
10、ween the bottom inwall line and the bend line.,10. belly: 炉腰。 11. bend line: 折线（炉喉与炉身交线）。,2019/7/9/21:45:12,Stockline Level1. For bell-top furnaces it is the horizontal line at the bottom of the large bell when closed. Accordingly, a 1.83 m stockline, for example, is the horizontal line 1.83 m below
11、 the large bell when closed. 2. For bell-less top furnaces, it is the horizontal line located below the tip of the rotating chute in the 90 (vertical) position. Stockline DiameterThe diameter from face to face of armor where used at a plane 1.83 m below the stockline level.,12. stockline: 料线，料面高度。 1
12、3. stockline level: 料线零位。 14. bell-top furnace: 钟式高炉。 15. bell-less top furnace: 无料钟式高炉。 16. rotating chute: 旋转溜槽。 17. stockline diameter: 料线直径（料线处炉喉直径）。 18. armor: 炉喉钢砖，炉喉保护板。,2019/7/9/21:45:12,Height of Throat SectionThe vertical distance from the bend line to the top of the armor. Throat Bell Hei
13、ghtThe vertical distance between the upper termination of the throat section and the bottom of the large bell when closed. Height between Bottom of Large Bell and Top of HopperThe vertical distance between the bottom of the large bell closed and the intersection of the hopper or the hopper extension
14、 with the gas seal.,19. throat: 炉喉。 20. throat bell height: 炉喉-料钟间高度。 21. large bell: 大钟。 22. gas seal: 气封，（大钟斗上面的）煤气封盖。,2019/7/9/21:45:12,Height of Large Bell HopperThe vertical distance between the inner large bell seat and the intersection of the hopper or the hopper extension with the gas seal.
15、Bell OverhangThe vertical distance between the bottom of the large bell closed and the inner bell seat. Annular SpaceThe difference between the stockline radius and the large bell radius.,23. large bell hopper: 大钟斗。 24. large bell seat: 大钟座。 25. bell overhang: 大料钟突缘高度。 26. annular space: 炉喉间隙（炉喉半径和大
16、钟半径之差）。,2019/7/9/21:45:12,Total Height of FurnaceThe vertical distance between the centerline of the taphole and the intersection of the large bell hopper or hopper extension with the gas seal. Working Height of FurnaceThe vertical distance between the centerline of the tuyeres and, for bell-top furnaces, and a line 1.83 m below the closed large bell. For bell-less top furnaces, the line is 0.91 m below the tip of the rotating chute in the 90 (vertical) position.,2019
