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A method for digesting waste mineral oil in iron and steel enterprises by steelmaking process

A mineral oil and steel technology, applied in the direction of improving process efficiency, manufacturing converters, etc., to prevent explosion accidents

Active Publication Date: 2021-01-15
XINJIANG BAYI IRON & STEEL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the other hand, as the most common medium for hydraulic transmission, after use, the molecular structure and chemical properties of oil have also changed to varying degrees. These changes in properties have made the recycling and reuse of oil an industry Difficult technical barriers

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0008] The process technology of the present invention takes a converter production line as an example.

[0009] For a converter, the amount of secondary dust removal accounts for about 3% of the steel output.

[0010] Step 1: Pull the above converter secondary dedusting ash to the pelletizing production line for use.

[0011] Step 2: Pull the discarded mineral oil to the pelletizing production line for use;

[0012] Step 3: Pull and transport the iron oxide skin produced by the converter continuous casting machine system to the pelletizing production line for use;

[0013] Step 4: Add the waste mineral oil and grease evenly into the dust removal ash, and then stir evenly, then add iron oxide scale particles, and stir evenly, wherein the converter secondary dust removal, iron oxide scale particles, waste mineral oil and grease The ratio is controlled and added according to the ratio of mass percentage 40:54:6;

[0014] Step 5: After the above oils and various raw materials ...

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PUM

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Abstract

The invention discloses a method for disposing waste mineral oil of iron and steel enterprises through a steelmaking process. The method comprises the steps that 1, secondary dedusting ash of a converter is dragged to a pelletizing production line for standby; 2, waste mineral oil grease particles are dragged to the pelletizing production line for standby; 3, oxide scales generated by a convertercontinuous casting machine system are dragged to the pelletizing production line for standby; 4, the waste mineral oil grease is evenly added into the dedusting ash to be evenly stirred, and then theoxide scale particles are added to be stirred evenly, wherein the secondary dedusting ash of the converter, the oxide scale particles and the waste mineral oil grease are controlled to be added according to the proportion of 40: 54: 6 by mass percent; 5, after the oil grease and the raw materials are mixed evenly, the mixed raw materials are conveyed into a ball press machine, and ball pressing agglomeration is conducted to form cold bonded pellets; and 6, the produced cold bonded pellet products are dragged to a converter production line, and molten iron and the cold bonded pellets are sequentially added into the converter to be used.

Description

technical field [0001] The invention relates to a method for digesting waste mineral oil in iron and steel enterprises by using a steelmaking process. Background technique [0002] Grease is used as the center of various process equipment such as mechanical lubrication and hydraulic transmission in the iron and steel industry. During the lubrication process, mechanical wear and metal debris from parts enter the interior of the grease. Since most of the lubricated mechanical parts are special steel, the infiltration of cadmium, nickel, molybdenum, copper, zinc, and lead makes grease a dangerous waste rich in heavy metal elements. On the other hand, as the most common medium for hydraulic transmission, after use, the molecular structure and chemical properties of oil have also changed to varying degrees. These changes in properties have made the recycling and reuse of oil an industry Difficult technical barriers to deal with. Contents of the invention [0003] The purpose ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22B1/244C21C5/28
CPCC21C5/28C22B1/2406C22B1/244Y02P10/20
Inventor 王伟王炳冯春江黄星武俞海明段建勇王洪林赵旭章
Owner XINJIANG BAYI IRON & STEEL