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Chrome fluxing agent for steel ladles and preparation method thereof

A kind of technology of drainage agent and chrome, which is applied in the field of refractory materials and can solve the problem of low opening rate of chrome drainage agent.

Active Publication Date: 2013-09-11
攀枝花市银江金勇工贸有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the prior art, the present invention aims to solve the problem that the pouring rate of the chromium drainage agent in the above-mentioned documents is still not high, and provides a chromium drainage agent with a higher casting rate, lower production cost and a more friendly use environment and its preparation method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Preparation of ladle chrome drainage agent:

[0036] A, prepare materials according to the following parts by weight and raw material requirements:

[0037] a: parts by weight:

[0038] 68 parts chrome ore

[0039] Silica with a particle size of 1-2mm 11 parts

[0040] Silica with a particle size of 0.5-1mm 6 parts

[0041] Potassium feldspar 4 parts

[0042] Carbon black 0.004 parts

[0043] Flake graphite 0.002 parts

[0044] f 4 Binder 0.0005 parts

[0045] Water 0.0001 part;

[0046] f 4 The binder is made by mixing maltodextrin and carboxymethyl cellulose at a ratio of 1:0.2.

[0047] b. The composition requirements of each component:

[0048] Cr in chrome ore 2 o 3 The weight percentage is 90%, containing Al 2 o 3 The weight percentage is 2%, the weight percentage containing MgO is 1%, containing T Fe (full iron) weight percentage is 2%;

[0049] Silica contains SiO 2 The weight percentage is 99%;

[0050] Potassium feldspar contains SiO 2 The ...

Embodiment 2

[0057] Preparation of ladle chrome drainage agent:

[0058] A, prepare materials according to the following parts by weight and raw material requirements:

[0059] a: parts by weight:

[0060] 72 parts chrome ore

[0061] Silica with a particle size of 1-2mm 22 parts

[0062] Silica with a particle size of 0.5-1mm 10 parts

[0063] Potassium feldspar 7 parts

[0064] Carbon black 0.008 parts

[0065]Flake graphite 0.004 parts

[0066] f 4 Binder 0.001 parts

[0067] 0.0003 parts of water;

[0068] f 4 The binder is made by mixing maltodextrin and carboxymethyl cellulose in a ratio of 1:3.

[0069] b. The composition requirements of each component:

[0070] Cr in chrome ore 2 o 3 The weight percentage is 46%, containing Al 2 o 3 12% by weight, containing 10% by weight of MgO, containing T Fe (full iron) weight percentage is 18%;

[0071] Silica contains SiO 2 The weight percentage is 99.9%;

[0072] Potassium feldspar contains SiO 2 The weight percentage is ...

Embodiment 3

[0079] Preparation of ladle chrome drainage agent:

[0080] A, prepare materials according to the following parts by weight and raw material requirements:

[0081] a: parts by weight:

[0082] 70 parts chrome sand

[0083] Particle size is 1-2mm silica 17 parts

[0084] Silica with a particle size of 0.5-1mm 8 parts

[0085] Potassium feldspar 6 parts

[0086] Carbon black 0.006 parts

[0087] Flake graphite 0.003 parts

[0088] f 4 Binder 0.0007 parts

[0089] 0.0002 parts of water;

[0090] f 4 The binder is made by mixing maltodextrin and carboxymethyl cellulose in a ratio of 1:1.2.

[0091] b. The composition requirements of each component:

[0092] Cr in chrome ore 2 o 3 The weight percentage is 68%, containing Al 2 o 3 7% by weight, containing 6% by weight of MgO, containing T Fe (full iron) weight percentage is 9%;

[0093] Silica contains SiO 2 The weight percentage is 99.5%;

[0094] Potassium feldspar contains SiO 2 The weight percentage is 76%, c...

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Abstract

The invention relates to a ladle chrome drainage agent and a preparation method thereof, belonging to the field of refractory materials. The ladle chromium draining agent is calculated by weight of raw materials: 68-72 parts of chrome ore, 11-22 parts of silica with a particle size of 1-2 mm, 6-10 parts of silica with a particle size of 0.5-1 mm, and 4-7 parts of potassium feldspar. 0.004-0.008 parts of carbon black, 0.002-0.004 parts of flake graphite, 0.0005-0.001 parts of F4 binder, and 0.0001-0.0003 parts of water. The product is made through the steps of material preparation, metering, mixing, discharging, packaging and so on. The draining agent provided by the invention is added with novel binder F4 and flake graphite as a lubricant to produce a new ladle chrome draining agent with higher casting rate, lower production cost and more environment-friendly use.

Description

technical field [0001] The invention relates to a drainage agent and a preparation method thereof, in particular to a ladle chrome drainage agent and a preparation method thereof, belonging to the field of refractory materials. Background technique [0002] Chromium drainage agent is mainly used for ladle drainage. At present, silicon drainage agent is mainly used for drainage of small and medium-sized ladles, while chromium drainage agent is mainly used for drainage of molten steel in large and medium-sized ladles, and good results have been achieved. But there are also the following problems: [0003] 1. The pouring rate is not high, about 90%. [0004] 2. Those that cannot be poured often need drainage, that is, use an oxygen lance to burn at the sliding nozzle, which not only wastes time but affects steelmaking production efficiency, but also poses a great safety hazard. [0005] The State Intellectual Property Office disclosed a patent No. 02109237.0 on December 4, 2...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D41/54C04B35/66
Inventor 何金勇宋国菊许华林何源蒲芝明
Owner 攀枝花市银江金勇工贸有限责任公司