A kind of converter slag pellet and its forming binder

A slag-reducing agent and binder technology, applied in the metallurgical field, can solve the problems of accumulation of environmental pollution, waste of resources, etc., and achieve the effect of improving production efficiency and high strength

Active Publication Date: 2021-05-28
PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If it is not utilized, it will not only cause a waste of resources, but also accumulate and raise dust, which will pollute the environment.

Method used

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  • A kind of converter slag pellet and its forming binder
  • A kind of converter slag pellet and its forming binder
  • A kind of converter slag pellet and its forming binder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Such as figure 1 Shown, the method for preparing converter slagging agent pellets, concrete steps are as follows:

[0036] (1), preparation of binder: 12 parts by weight of anionic polyacrylamide, 7 parts by weight of carboxymethyl cellulose, 79 parts by weight of sodium bentonite and 2 parts by weight of cationic guar gum are evenly mixed to obtain a composite bond agent. The molecular weight of polyacrylamide is 22 million.

[0037] (2) Mixing of converter slagging agent materials. Add 42 parts by weight of steelmaking dust, 8 parts by weight of converter sludge, 43 parts by weight of quartz sand and 1.5 parts by weight of solid organic binder into a roller mixer for dry mixing for 4 minutes, add 9 parts by weight of water, and wet mix for 5 minutes . In order to avoid excessive smoke and dust during the mixing process of the steelmaking dedusting ash, 3 parts by weight of water can be sprayed in the dedusting ash in advance, so that the material will not raise du...

Embodiment 2

[0040] Such as figure 1 Shown, the method for preparing converter slagging agent pellets, concrete steps are as follows:

[0041] (1), preparation of binder: 12 parts by weight of anionic polyacrylamide, 6 parts by weight of carboxymethyl cellulose, 79 parts by weight of sodium bentonite and 3 parts by weight of cationic guar gum are evenly mixed to obtain a composite bond agent. The molecular weight of polyacrylamide is 22 million.

[0042] (2) Mixing of converter slagging agent materials. Add 42 parts by weight of steelmaking dust, 8 parts by weight of converter sludge, 43 parts by weight of quartz sand and 1.5 parts by weight of solid organic binder into a roller mixer for dry mixing for 5 minutes, add 10 parts by weight of water, and wet mix for 5 minutes . In order to avoid excessive smoke and dust during the mixing process of the steelmaking dedusting ash, 3 parts by weight of water can be sprayed in the dedusting ash in advance, so that the material will not raise d...

Embodiment 3

[0045] Such as figure 1 Shown, the method for preparing converter slagging agent pellets, concrete steps are as follows:

[0046] (1), preparation of binder: 12 parts by weight of anionic polyacrylamide, 10 parts by weight of carboxymethyl cellulose, 72 parts by weight of sodium bentonite and 6 parts by weight of cationic guar gum are evenly mixed to obtain a composite bond agent. The molecular weight of polyacrylamide is 22 million.

[0047] (2) Mixing of converter slagging agent materials. Add 44 parts by weight of steelmaking dust, 10 parts by weight of converter sludge, 45 parts by weight of quartz sand and 1.5 parts by weight of solid organic binder into a roller mixer for dry mixing for 6 minutes, add 12 parts by weight of water, and wet mix for 6 minutes . In order to avoid excessive smoke and dust during the mixing process of steelmaking dust removal ash, 4 parts by weight of water can be sprayed in the dust removal ash in advance, so that the material will not rai...

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Abstract

The invention discloses a binder for forming a converter slagging agent, which comprises anionic polyacrylamide, carboxymethyl cellulose, sodium bentonite and cationic guar gum. The invention also discloses a method for preparing converter slag reducing agent pellets by using the above binder. The converter slagging agent pellets and the binder for molding thereof provided by the invention have less impurity content, certain strength, low pulverization rate and simple preparation process.

Description

technical field [0001] The invention relates to the field of metallurgy, and more specifically, relates to a converter slag reducing agent pellet and a binder for molding thereof. Background technique [0002] The dust ash obtained by dry dust removal in the iron and steel production process has high iron content, fine particle size, and large specific surface area. It can be used as a slagging agent in converter smelting. It also contains basic oxides such as CaO and can be used as a slagging agent. . If it is not utilized, it will not only cause resource waste, but also accumulate and raise dust to pollute the environment. Due to the fine particle size of the dust collected by dry dust removal, it cannot be used directly. It needs to be agglomerated or briquetted to be recycled. At the same time, due to the high binary alkalinity of the dust removal dust of steelmaking, it is necessary to remove dust from steelmaking according to the composition of converter slag. gray t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22B1/244C22B1/243C21C7/00C21C5/36
CPCC21C5/36C21C7/00C22B1/2406C22B1/243C22B1/244
Inventor 齐建玲秦洁李占军刘功国
Owner PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP
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