从 2006 年攻关高温工况至今，五代迭代。行业内适应超高温工况下长期安全稳定运行、并能优化布料矩阵助力增产降焦比的溜槽产品。 Five generations of development since work on high-temperature conditions began in 2006. A chute that runs safely and stably long-term under ultra-high temperatures while optimizing the charging matrix to raise output and cut coke rate.
布料溜槽安装于无料钟炉顶的布料器上，按装料制度要求的料批重量和角度把原燃料布在炉喉料面上。从结构上它只是布料器的一个部件，但因为地位和作用特殊，通常被当作独立设备处理。 Mounted on the distributor of a bell-less top, the chute places burden onto the throat surface at the batch weight and angle set by the charging program. Structurally it is only one part of the distributor, yet its role is so critical that it is treated as an independent piece of equipment.
当溜槽出现本体变形、衬板磨损脱落时，若工艺仍按原布料制度操作，会造成布料混乱、炉喉料面不均，煤气流利用率变差，引起炉顶温度升高或管道崩料。炉顶温度失控又会反作用于溜槽，加快变形磨损，进入恶性循环。 Once the body distorts or liners wear and detach, continuing to charge on the original program produces disordered distribution and an uneven throat surface, degrading gas utilization and driving top temperature up or causing channelling and slips. Runaway top temperature then feeds back onto the chute, accelerating distortion and wear in a vicious circle.
我们的产品在适配各类炉顶设备的基础上，通过耐高温壳体、耐高温耐磨材料和独有设计结构，保证溜槽既有长使用寿命，又对工况波动有更大适用性，不会出现过短期失效的风险。 Compatible with all furnace-top systems, our chutes combine a high-temperature shell, heat- and wear-resistant materials and proprietary structural design to deliver long life plus greater tolerance of fluctuating conditions, eliminating the risk of premature failure.
2006 年起攻关高温工况。每一代不是参数微调，而是针对一类具体失效原因的结构或材料变更。 Work on high-temperature conditions began in 2006. Each generation is not a parameter tweak but a structural or material change targeting one specific cause of failure.
针对高炉炉顶超高温工况研制专用材料，解决常规溜槽在高温下快速烧损、耐磨层失效的问题。 Dedicated materials developed for ultra-high furnace-top temperatures, addressing rapid burn-through and wear-layer failure of conventional chutes.
专有热应力定向释放技术防止变形影响布料矩阵；无受力联接焊缝设计防止热裂纹危害。已在涟钢超温工况下成功使用，后用于鞍钢鲅鱼圈 4038m³。 Proprietary directional stress release keeps distortion from disturbing the charging matrix, while load-free weld joints prevent thermal cracking. Proven at Lianyuan Steel under over-temperature conditions, then applied at Ansteel Bayuquan 4038 m³.
通过长鹅头设计避开接口在高温区的烧损。目前沙钢 5860m³、鞍钢仍在使用该代产品。 The extended gooseneck moves interfaces out of the hottest zone. Still in service at Shagang 5860 m³ and across Ansteel.
高温受热区仍用圆弧形抗变形，出口前端改方形，料流分布更均匀，宽度比半圆形溜槽小 30%；同时加强横梁提高系统刚性。 The heated zone keeps its arc for deformation resistance while the outlet turns square, distributing flow more evenly at 30% narrower width than a semi-circular chute; a reinforced beam raises overall rigidity.
整流扁平出口 + 聚流挡板，料环带宽度不发散、厚度均匀。配合布料矩阵优化，实测均降焦比约 3%（专利 ZL 202310750921.9）。日本已授权，韩国在审。 A rectified flat outlet plus flow-concentrating baffle keeps the burden ring tight and even. Combined with matrix optimization it cuts coke rate by about 3% (patent ZL 202310750921.9). Granted in Japan; under examination in Korea.
降低物料撞击能耗、提高溜槽中后段物料通过速度，减少物料破碎、降低物料水平速度、提高布料精度。是第 5 代技术体系中与精准布料并行的一条路线。 Reduces impact energy loss, speeds material through the mid and rear sections, limits burden degradation, lowers horizontal velocity and improves placement accuracy — a parallel track to precision distribution within the fifth-generation system.
随着高炉大型化，炉喉直径增大，布料的均匀稳定更难实现，出现布料不稳定、煤气分布失常、炉料偏行；炉缸直径增大，炉缸工作的均匀活跃更难保证，出现工作呆滞、出铁出渣温度和产量波动，甚至炉缸堆积。解决这个问题就能节能降耗。 As furnaces grow, throat diameter increases and uniform, stable distribution becomes harder: distribution turns erratic, gas flow abnormal, burden descent uneven. Larger hearths are harder to keep active, bringing sluggish operation, fluctuating tap temperature and output, even hearth build-up. Solving this saves energy and cuts consumption.
圆形出口料流发散程度最高，方形次之，两种都不能实现精准布料。通过优化设计出新型扁平形出口，可以有效控制料流。 A circular outlet spreads the stream most, a square one less so, and neither achieves precise distribution. A new flat outlet controls the stream effectively.
槽体含接料腔与整流部，物料先流经整流部再从扁平出口流出。每批料的料流规整稳定，避免发散紊乱，使料面圆环（料台）宽度尽可能窄。 The body holds a receiving chamber and a rectifying section: material passes the rectifier before leaving through the flat outlet, so each batch flows steadily without spreading and the burden ring stays as narrow as possible.
矩形截面溜槽布料时炉料落点圆周偏心远小于半圆截面（落点半径最大相差 0.79 米），瞬时流量圆周分布曲线也更贴近平均流量曲线。 With a rectangular section, circumferential eccentricity of the landing point is far smaller than with a semi-circular one (up to 0.79 m difference in radius), and the instantaneous flow curve tracks the mean far more closely.
模拟显示 α 角 10°~20° 时料流落点靠溜槽尾端需聚拢，α 角大于 40° 时落点在前端易飞溅也需聚拢。专门设计的聚流挡板控制了料流飞溅出槽。 Simulation shows the stream lands near the tail at α angles of 10–20° and toward the front, prone to splashing, above 40°. A purpose-designed baffle controls splash out of the chute in both cases.
| 出口形状Outlet shape | 料流落点Landing points | 料环带宽Burden ring width |
|---|---|---|
| 半圆形出口Semi-circular | 落点发散严重，难以精准布料Landing points spread severely; precise distribution is impossible | 1.1 m |
| 矩形出口Rectangular | 落点较发散，料环较宽Landing points spread somewhat, giving a wider ring | 0.8 m |
| 扁平形出口Flat outlet | 落点与流量分布更均匀，有效控制发散及厚度Landing points and mass flow distribute more uniformly, controlling both spread and thickness | 0.4 m |
代际不是简单的新旧替代。沙钢 5860m³ 与鞍钢目前仍在使用第 3 代，包钢 4# 已用到第 5 代——按现场工况选代级，比一律上最新更稳妥。 Later generations do not simply replace earlier ones. Shagang's 5,860 m³ furnace and Ansteel still run Generation 3, while Baotou No. 4 has moved to Generation 5. Matching the generation to site conditions is sounder than always fitting the newest.
外壳采用耐高温不锈钢材质，内部衬板耐磨材料采用难熔耐磨金属 DSYH900 进行激光熔覆，该材料在高温下硬度不降反升，在 900~1000℃ 下仍保持较高硬度。溜槽既有精准布料的特点，又有长寿耐用的特点。 The shell uses high-temperature stainless steel while the liner is laser-clad with DSYH900 refractory wear metal, whose hardness rises rather than falls with heat and stays high at 900–1000 ℃. The chute is therefore both precise and durable.
外壳制造采用铆焊钢构单层外壳，出口有横梁形成框架。外壳、梁、衬板之间焊接连接的同时增加螺栓连接：允许高温下焊接开裂（高温下焊接本就不可靠），也允许部分螺栓断裂——有增强设计，经高温变形后形成稳态。固定螺栓选用 316L 高温不锈钢，兼顾高温强度与抗侵蚀。 The shell is a single-layer riveted-and-welded steel structure with a beam forming a frame at the outlet. Shell, beam and liner are both welded and bolted, which tolerates weld cracking at high temperature (where welds are inherently unreliable) and even partial bolt failure — reinforcement lets the assembly settle into a stable state after thermal deformation. Fasteners are 316L high-temperature stainless steel for both strength and corrosion resistance.
外壳材质 DSYG8-21 在 800℃ 时应力为 21MPa，而此温度下溜槽最大工作应力仅 4~5MPa，高温强度余量充足。 DSYG8-21 shell material carries 21 MPa at 800 ℃ against a maximum working stress of just 4–5 MPa at that temperature — ample margin.
包钢稀土钢板材炼铁厂 7#、8# 高炉各设 38 个风口、4 个铁口，炉喉直径 10500mm。原用国内某厂家溜槽平均寿命 195 天，且约 90 天需下线做耐磨修复。 The 7# and 8# furnaces at Baotou Steel's rare-earth plate ironmaking plant each have 38 tuyeres and 4 tapholes, with a 10,500 mm throat. The previous domestic chute averaged 195 days and needed off-line wear repair at around 90.
| 物料Material | 圆形溜槽料流宽度Circular chute width | 新型溜槽料流宽度New chute width | 收窄幅度Reduction |
|---|---|---|---|
| 焦炭Coke | 1200 mm | 800 mm | −33.3% |
| 铁矿（正转）Ore (forward) | 1100 mm | 760 mm | −30.9% |
| 铁矿（反转）Ore (reverse) | 1100 mm | 700 mm | −36.4% |
| 高炉Furnace | 投运时间Commissioned | 煤气利用率Gas utilization | 燃料比降低Fuel rate cut | 碳耗降低Carbon cut | CO₂ 减排CO₂ reduction |
|---|---|---|---|---|---|
| 8# 4150 m³ | 2022 年 4 月 15 日15 Apr 2022 | 42.59%（+1.04%） | 4.58 kg/t | 3.72 kg/t | 13.62 kg/t |
| 7# 4150 m³ | 2023 年 1 月 16 日16 Jan 2023 | 44.04%（+2.26%） | 17 kg/t | 13.79 kg/t | 50.57 kg/t |
注：7# 高炉因原本炉况波动、燃料比高于 8# 约 10kg/t，故降幅更大。数据来自包钢现场生产记录，相关分析已在中国金属学会炼铁学术会议发表。 Note: 7# started from a less stable condition with a fuel rate about 10 kg/t higher than 8#, hence the larger improvement. Data from Baotou Steel production records; the analysis has been presented at Chinese Society for Metals ironmaking conferences.
包钢 4# 高炉（3000m³）使用第 5 代精准布料溜槽后，日均铁水由 5,800 t 提升至 7,000 t，焦比下降 20 kg/t 铁水。8# 高炉（4150m³）首次使用第 5 代时，同原料铁水产量 +10%、焦比下降 10 kg/t。 On Baotou No. 4 (3,000 m³) with the Generation 5 precision chute, daily hot metal rose from 5,800 t to 7,000 t and the coke rate fell by 20 kg per tonne. On the first Generation 5 installation at No. 8 (4,150 m³), hot metal output rose 10% on the same raw materials with the coke rate down 10 kg/t.
沙钢 5,860 m³（我国最大高炉）唯一指定供应商，2,000 m³ 以上高炉广泛应用。2006 年起攻关高温工况，2012 年实现耐磨防烧长寿化，2021 年启用精准布料溜槽。 Sole nominated supplier to Shagang's 5,860 m³ furnace, China's largest, and in wide service on blast furnaces above 2,000 m³. Work on high-temperature duty began in 2006; wear- and burn-resistant long life was achieved in 2012; the precision distribution chute entered service in 2021.
| 用户企业Customer | 炉内容积Volume | 数量Qty | 原寿命Previous life | 我司寿命Our life | 温度Duty |
|---|---|---|---|---|---|
| 沙钢Shagang | 5,860 m³ | 1 | 6 个月6 mo | 18 个月18 mo | 中高温Med-high |
| 沙钢Shagang | 2,500 m³ | 1 | 10 个月10 mo | 18 个月18 mo | 正常Normal |
| 鞍钢Ansteel | 3,200 m³ | 4 | 8 个月8 mo | 18 个月18 mo | 中温Medium |
| 鞍钢Ansteel | 2,580 m³ | 4 | 6 个月6 mo | 18 个月18 mo | 中高温Med-high |
| 鞍钢鲅鱼圈Ansteel Bayuquan | 4,038 m³ | 2 | 4 个月4 mo | 15 个月15 mo | 超高温Ultra-high |
| 鞍钢凌源Ansteel Lingyuan | 2,500 m³ | 1 | 8 个月8 mo | 15 个月15 mo | 中温Medium |
| 本钢Benxi Steel | 4,700 m³ | 1 | 10 个月10 mo | 18 个月18 mo | 正常Normal |
| 包钢Baotou Steel | 4,150 m³ | 2 | 6 个月6 mo | 15 个月15 mo | 中高温Med-high |
| 包钢Baotou Steel | 3,000 m³ | 1 | 3 个月3 mo | 15 个月15 mo | 超高温Ultra-high |
| 包钢Baotou Steel | 2,500 m³ | 1 | 6 个月6 mo | 15 个月15 mo | 中高温Med-high |
| 包钢Baotou Steel | 2,200 m³ | 1 | 8 个月8 mo | 15 个月15 mo | 中温Medium |
| 包钢Baotou Steel | 2,000 m³ | 2 | 8 个月8 mo | 15 个月15 mo | 中温Medium |
| 昆钢Kunming Steel | 2,500 m³ | 3 | 18 个月18 mo | 24 个月24 mo | 低温Low |
| 涟钢Lianyuan Steel | 3,200 m³ | 1 | 8 个月8 mo | 18 个月18 mo | 中温Medium |
| 涟钢Lianyuan Steel | 2,800 m³ | 1 | 8 个月8 mo | 18 个月18 mo | 中温Medium |
| 涟钢Lianyuan Steel | 2,200 m³ | 1 | 4 个月4 mo | 18 个月18 mo | 超高温Ultra-high |
| 水钢Shuigang | 2,500 m³ | 1 | 8 个月8 mo | 18 个月18 mo | 中温Medium |
| 山西建邦Shanxi Jianbang | 2,500 m³ | 1 | 12 个月12 mo | 24 个月24 mo | 正常Normal |
| 营口钢铁Yingkou Steel | 2,500 m³ | 1 | 10 个月10 mo | 18 个月18 mo | 正常Normal |
| 名称Title | 专利号Patent No. | 类型Type | 技术代级Generation | 备注Notes |
|---|---|---|---|---|
| 一种高炉布料溜槽Blast furnace distribution chute | 202110795994 | 发明Invention | 第 3 代Gen 3 | 长鹅头Extended gooseneck |
| 高炉布料器动臂托架、布料器组件及布料器Distributor boom bracket, assembly and distributor | 202111294692.1 | 发明Invention | — | 挂钩溜槽Hook-mounted chute |
| 大高炉扁平出口布料溜槽Flat-outlet chute for large blast furnaces | 202111315930.2 | 发明Invention | 第 5 代Gen 5 | 韩国在审Under exam. in Korea |
| 大高炉扁平出口布料溜槽Flat-outlet chute for large blast furnaces | 特許第7745935号JP 7745935 | 发明Invention | 第 5 代Gen 5 | 日本授权Granted in Japan |
| 高炉布料折翘溜槽及高炉布料设备Folded chute and charging equipment | 202111300814.3 | 发明Invention | — | — |
| 一种高炉冶炼增产降耗的方法Method for higher output and lower consumption | 202310750921.9 | 发明Invention | 第 5 代Gen 5 | 布料工艺，均降焦比约 3%Charging process, ~3% coke cut |
| 一种高炉布料溜槽Blast furnace distribution chute | 202222163128.2 | 实用新型Utility model | 第 4 代Gen 4 | 前方后圆Front-square/rear-round |
给出炉容、炉顶温度区间、当前溜槽的更换周期与失效形式，我们会给出寿命评估和可承诺的质保目标。我们习惯用"寿命不达标不予结算"的方式进场。 Send us your furnace volume, top temperature range, current replacement cycle and failure mode, and we will return a life assessment with a warranty target we are prepared to commit to. We routinely enter on terms of "no payment if the life target is missed".
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