1-3mm 90-95%炼钢用煤质/石墨化增碳剂

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商品详情包装及参数

随着冶金技术的不断进步，为了适应强化冶炼，优质高效的炼钢技术的要求，在钢包内使用增碳剂作为一种补充手段已被普遍采用，我厂研制开发的钢水增碳剂具有固定碳含量高，硫磷含量低增碳效果稳定，收得率高等优点，在使用时烟尘较小，不污染生产环境，是钢水增碳的理想材料。

With the continuous progress of metallurgical technology, in order to adapt to the intensification of smelting process, the requirements of high quality and efficiency of steelmaking technology, in a ladle recarburizing agent has been widely adopted as a supplementary means, our factory developed the development of molten steel carburetion agent with high fixed carbon content, low content of sulfur and increasing carbon effect is stable, the recovery rate is high, the smoke is less when using, do not pollute environment and is an ideal material for molten steel carburetion.

石墨增碳剂

优质增碳剂一般指经过石墨化的增碳剂，在高温条件下，碳原子的排列呈石墨的微观形态，所以称之为石墨化。石墨化可以降低增碳剂中杂质的含量，提升碳含量，降低硫氮含量。

High quality carburizing agent generally refers to after graphite carburant, in under the condition of high temperature and carbon atoms arranged in graphite morphology, so called for graphitization. Graphite can reduce the content of impurities in the carburant, enhance the carbon content, reduce the content of sulfur and nitrogen.

项目	单位	指标
水分	%	≤1
灰分	%	≤0.5
挥发分	%	≤1.2
固定碳	%	≥98
硫	%	≤0.5

煤质增碳剂

煤质增碳剂采用优质无烟煤做原料，是在1300℃高温干馏降低挥发份，用以提高固定碳含量和密度、强度，抗氧化性能而成的产品。其具有固定碳含量较高，抗氧化性强，有害元素含量低等特点。在冶炼过程中做还原剂用。增碳剂是为了补足钢液中所需的碳含量而增加的含碳物质。电弧炉炼钢过程中，可以在装料时配加焦炭或无烟煤作为增碳剂。由于其灰分和挥发分含量较高，感应电炉熔炼铸铁很少用作增碳剂。

Coal carbonizing agent made of high quality anthracite as raw material, is in 1300 centigrade high temperature carbonization reduce volatile, used to enhance the fixed carbon content and density, strength, oxidation resistance and products. It has high fixed carbon content, strong oxidation resistance, low content of harmful elements. As reducing agent in smelting process. Recarburizer is to complement the carbon content in liquid steel required for increasing carbon containing material. Electric arc furnace steelmaking process, can add coke or anthracite as carburetant in charging. Due to its high ash content and volatile matter content, induction furnace melting cast iron is rarely used as a carburizing agent.

固定碳	90-95%	挥发分	0.5-1.5%
灰分	3-7%	水分	≤0.5%
硫	≤0.3%	粒度：0-10mm按客户需求定制

低硫增碳剂：

所谓增碳剂，就是要在加入后可以有效提高铁液中碳的含量，所以增碳剂的固定碳含量一定不能太低，否则要达到一定的含碳量，就需要加入相比高碳的增碳剂更多的样品，这样无疑增加了增碳剂中其他不利元素的量，使铁液不能获得较好的收益。低的硫、氮、氢元素是防止铸件产生氮气孔的关键，这样就要求增碳剂的含硫量越低越好，其中效果最好的就是低硫增碳剂，由于其固定碳含量高、性能稳定、易吸收，增碳效果好等特点，所以也是至今为止用途较广泛的一种增碳剂。

So-called carburant is in after adding can effectively improve the content of carbon in liquid iron, so carburant fixed carbon content must not be too low, otherwise they will be reached certain carbon content, we need to add high carbon carburizing agent more samples are compared, which will undoubtedly increase the carburant in other adverse element, the molten iron can not obtain better returns. Low sulfur, nitrogen, hydrogen is to prevent casting nitrogen blow hole key. So the carburant sulfur content is as low as possible. The effect best is low sulfur carbon agent, due to its high fixed carbon content, stable performance, easy to absorb, recarburizing effect good, so is so far more extensive use of carburizing agent.

固定碳	≥98.5%	灰分	≤0.5%
挥发分	≤0.5%	硫	≤0.05%
水分	≤0.5%	氮	≤0.03%（300ppm）

增碳剂用途：

用于铸造，铸铁、铸钢，铸件会有对碳的一个要求，那么增碳剂顾名思义就是来增加铁液中的碳含量，又比如说，在熔炼中常用炉料为生铁、废钢、回炉料，生铁的碳含量高，但是却采购价格相对废钢来说是要高出一节的，所以增加废钢投放量，降低生铁投放量，加增碳剂，能起到一定的降低铸件成本的作用。

For casting, cast iron, cast steel, casting will have a requirement of carbon, then carburizing agent, as the name implies, is to increase the carbon content of molten iron, for example, in charge used in smelting pig iron, scrap steel, scrap, pig iron carbon content is high, but the purchase price of scrap is higher section of, so the increase in scrap amount invested, pig iron reduces the amount invested, and carburizing agent, can play a role in reducing the cost of castings.

增碳剂的使用

在冶炼过程中，由于配料或装料不当以及脱碳过量等原因，有时造成钢中碳含量没有达到顶期的要求，这时要向钢液中增碳。常用的增碳剂有增碳生铁、电极粉、石油焦粉、木炭粉和焦炭粉。转炉冶炼中、高碳钢种时，使用含杂质很少的石油焦作为增碳剂。对顶吹转炉炼钢用增碳剂的要求是固定碳要高，灰分、挥发分和硫、磷、氮等杂质含量要低，且干燥、干净、粒度适中。

In the smelting process, due to the ingredients or improper loading and decarbonization excess and other reasons, sometimes resulting in steel carbon content did not reach the top of the requirements, then to the carburization of molten steel. Recarburizer used a carbon electrode, iron powder, petroleum coke powder, charcoal powder and coke powder. Smelting, high carbon steel, containing less impurities in oil Jiaozuo carburetant. The top blown converter steelmaking carburant is high fixed carbon, ash, volatile matter, sulfur, phosphorus and nitrogen impurity content is low, and dry, clean, moderate granularity.

1、炉内投入法：

增碳剂适于在感应炉中熔炼使用，但依据工艺要求具体使用也不尽相同。

(1)在中频电炉熔炼中使用增碳剂，可按配比或碳当量要求随料加入电炉中下部位，回收率可达95%以上；

(2)如果碳量不足调整碳分时，先打净炉中熔渣，再加增碳剂，通过铁液升温，电磁搅拌或人工搅拌使碳溶解吸收，回收率可在90%左右，如果采用低温增碳工艺，即炉料只熔化一部分，熔化的铁液温度较低的情况下，全部增碳剂一次性加入铁液中，同时用固体炉料将其压入铁液中不让其露出铁液表面。这种方法铁液增碳可达1.0%以上。

1, furnace input method:
Recarburizer used in induction furnace for melting, but the specific use according to the technological requirements are not the same.
(1) used in the intermediate frequency electric furnace smelting carburant, according to the ratio of and carbon equivalent requirements with the mixture into furnace in the middle and lower part and recovery rate can reach more than 95%;
(2) if the lack of adjustment of carbon carbon content when it first hit the net furnace slag, plus carburant, by raising the temperature of molten iron, electromagnetic stirring or artificial stir to dissolve carbon absorption, recycling rate in about 90%, if the use of low-temperature carbonization process, the melt furnace charge only a part of, the molten iron temperature lower, all recarburizer one-time addition of iron liquid, also with solid charge will pressing it into the liquid iron does not let its exposed out of the surface of the molten iron. The method of iron liquid carbon can reach more than 1%.

2、炉外增碳：

(1)包内喷石墨粉

选用石墨粉做增碳剂，吹入量为40kg/t，预期能使铁液含碳量从2%增到3%。随着铁液碳含量逐渐升高，碳量利用率下降，增碳前铁液温度1600℃，增碳后平均为1299℃。喷石墨粉增碳，一般采用氮气做载体，但在工业生产条件下，用压缩空气更方便，而且压缩空气中的氧燃烧产生CO,化学反应热可补偿部分温降，而且CO的还原气氛利于改善增碳效果。

(2)出铁时使用增碳剂

可将100—300目的石墨粉增碳剂放到包内，或从出铁槽随流冲入，出完铁液后充分搅拌，尽可能使碳溶解吸收，碳的回收率在50%左右。

2, outside the carburizing furnace:

(1) package of graphite powder spraying
Choose recarburizer graphite powder, blow into the amount of 40kg/t, is expected to make iron carbon content increases from 2% to 3%. With the carbon content in liquid iron is increased, decreased utilization of carbon, carbon before the molten iron temperature is 1600 degrees centigrade, the average is 1299 DEG C after carburizing. Graphite powder spray carbonization, generally uses nitrogen as a carrier, but under the condition of industrial production, it is more convenient to use compressed air, and the compression of oxygen in the air generated by the combustion of CO, the chemical reaction heat can compensate part of the temperature drop, and co reducing atmosphere conducive to improve recarburizing effect.
(2) when the iron using recarburizer
Can be 100 - 300 to graphite powder carburizing agent into the bag, or from the iron tank with flow into, the end of the liquid iron after fully mixing, as far as possible to dissolve carbon absorption, carbon recovery rate in about 50%.