鋼廠尾氣成分複雜，除氮氣、氧氣、一氧化碳、氫氣等大宗氣體外，氦氣含量大多處在 0.3%～3% 區間，雜質氣體種類多、粉塵水汽含量高，常規氣體分離裝置很難實現有效提取。傳統生產模式下，企業常年外購瓶裝、槽車氦氣用於鋼材焊接、淬火、檢漏工序，耗材成本占據車間生產開支大頭。通過配套專業化氦氣提純設備，從廢棄尾氣中富集提純高純氦氣，提純後的產品可就地回供廠區生產車間，剩餘副產氣體還能回收用作燃料，真正實現鋼廠尾氣變廢為寶。

The composition of tail gas from steel mills is complex. Except for bulk gases such as nitrogen, oxygen, carbon monoxide, and hydrogen, the helium content is mostly in the range of 0.3% to 3%. There are many types of impurity gases and high dust and water vapor content, making it difficult for conventional gas separation devices to achieve effective extraction. Under the traditional production mode, enterprises often purchase bottled and tanker helium gas for steel welding, quenching, and leak detection processes, and the cost of consumables accounts for the majority of workshop production expenses. By using specialized helium purification equipment, high-purity helium gas is enriched and purified from waste exhaust gas. The purified product can be returned to the production workshop in the factory area on site, and the remaining by-product gas can also be recycled as fuel, truly realizing the transformation of steel plant exhaust gas into treasure.

從資源化工藝流程來看，鋼廠尾氣首先經過前置預處理工段，除塵過濾器脫除冶煉粉塵、冷凝裝置去除尾氣中的水蒸氣與微量油汙，規避固體雜質堵塞提純膜組件或吸附分子篩。預處理達標後的混合氣體送入氦氣提純主機，依托變壓吸附、膜分離、低溫精餾三種主流提純工藝按需分離雜質，根據原料氣氦氣濃度靈活搭配工藝組合，最終產出 99.99% 及以上高純氦氣，直接接入廠區輸氣管道循環使用。多餘提純氦氣還可以灌裝外銷，拓展企業額外營收渠道，最大化挖掘尾氣經濟價值。

From the perspective of resource utilization process flow, the tail gas of steel mills first goes through the pre-treatment section, where dust removal filters remove smelting dust and condensation devices remove water vapor and trace oil stains from the tail gas, avoiding solid impurities blocking the purification membrane components or adsorption molecular sieves. The pre treated mixed gas that meets the standards is sent to the helium purification host, where impurities are separated as needed using three mainstream purification processes: pressure swing adsorption, membrane separation, and low-temperature distillation. The process combinations are flexibly matched according to the helium concentration of the feed gas, resulting in high-purity helium gas of 99.99% or higher, which is directly connected to the plant's gas pipeline for recycling. Excess purified helium can also be filled for export, expanding the company's additional revenue channels and maximizing the economic value of exhaust gas.

氦氣提純設備可適配多種鋼廠實際工況，首先是大型長流程綜合鋼廠，這類企業高爐、電爐產能大，尾氣排放量穩定連續，適合配置大中型集成式提純機組，24 小時不間斷在線回收尾氣氦氣，匹配全廠多條生產線用氣需求。其次是中小型特種鋼鍛造廠，冶煉頻次不固定、尾氣間歇性排放，可選模塊化小型氦氣提純設備，啟停靈活，隨尾氣產生節奏間歇運行，避免設備空載能耗浪費。

The helium purification equipment can be adapted to various actual working conditions of steel plants. Firstly, large-scale long process comprehensive steel plants have large blast furnace and electric furnace production capacity, stable and continuous tail gas emissions, and are suitable for configuring large and medium-sized integrated purification units to continuously recover tail gas helium 24 hours a day, matching the gas needs of multiple production lines in the entire plant. Secondly, there are small and medium-sized special steel forging plants with variable smelting frequency and intermittent exhaust emissions. Modular small helium purification equipment can be selected, which is flexible in start and stop and operates intermittently according to the rhythm of exhaust gas to avoid energy waste caused by equipment no-load.

針對地處高寒、高溫潮濕不同地域的鋼廠，設備可定製防爆、防腐機型，適應冶煉車間高溫、多腐蝕性煙氣的惡劣環境；部分配套餘熱發電的鋼廠，尾氣帶有餘溫，設備還能利用尾氣餘熱輔助預處理工序，進一步縮減運行電耗。此外，部分鋼廠尾氣中伴隨微量烴類、酸性氣體，定製化提純設備可增設前置脫碳、脫硫單元，解決複雜氣源提純難題。

For steel mills located in cold, high temperature, and humid areas, equipment can be customized with explosion-proof and anti-corrosion models to adapt to the harsh environment of high temperature and corrosive flue gas in the smelting workshop; Some steel plants that are equipped with waste heat power generation have exhaust gas with residual temperature, and the equipment can also use the waste heat from the exhaust gas to assist in the pre-treatment process, further reducing operating electricity consumption. In addition, trace amounts of hydrocarbons and acidic gases are present in the exhaust gas of some steel mills. Customized purification equipment can be equipped with pre decarbonization and desulfurization units to solve the problem of complex gas source purification.

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