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Novel adhesive for disc pelletizing sintered pellets and preparation method of novel adhesive

A new type of binder and disc pelletizing technology, applied in the field of disc pelletizing sintering pellet new binder, disc pelletizing sintering pellet new binder and its preparation field, can solve the problem of reducing pellets Problems such as pellet reducibility, lower pellet grade, and poor pellet quality can achieve the effect of reducing smelting slag rate, reducing heat consumption, and less residue

Pending Publication Date: 2022-03-18
河南锦瀚环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, most of the binders used in the pellet industry are bentonite. Due to the addition of bentonite, the SiO of the pellets is increased. 2 content, which reduces the grade of pellets, and the slag rate is high; due to the residue of bentonite, the reduction of pellets is reduced. Compared with imported pellets, except for the raw material conditions, the addition of bentonite is the traditional pellet One of the reasons for the poor quality, so we propose a new type of binder for disc pelletizing and sintering pellets and its preparation method

Method used

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  • Novel adhesive for disc pelletizing sintered pellets and preparation method of novel adhesive

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A new type of binder for disc pelletized sintered pellets, including: calcium oxide, magnesium oxide, tackifier, water reducer, organic high molecular polymer, the new binder for disc pelletized sintered pellets The agent is calculated by mass percentage: calcium oxide 40-52%, magnesium oxide 3-10%, tackifier 3-5%, water reducing agent 8-12%, organic high molecular polymer 33-38%, the organic The high-molecular polymer is set as a water-soluble organic high-molecular polymer, and the organic high-molecular polymer becomes a high-viscosity liquid when it meets water;

[0030] In terms of parts by mass, the formula of the novel binder for disc pelletizing and sintering pellets is as follows: 48% calcium oxide, 5% magnesium oxide, 3% tackifier, 9% water reducer, organic polymer Polymer 35%.

[0031] The addition ratio of described disc pelletizing and sintering pellets new binder is set to 1-2% when used, and the optimal addition ratio when using disc pelletizing and sint...

Embodiment 2

[0042]The difference from Example 1 is that, in terms of mass percentage, the formula of the novel binder for disc pelletizing and sintering pellets is as follows: 40% calcium oxide, 3% magnesium oxide, 4% tackifier, water reducing Agent 8%, organic polymer 33%;

[0043] A new type of binder for disc pelletizing and sintering pellets and a preparation method thereof, comprising the following steps:

[0044] Step 1. Prepare materials. According to the formula of the new binder of disc pelletizing and sintering pellets, all materials are weighed according to the mass percentage and set aside;

[0045] Step 2: Grinding, placing the spare material in the grinding equipment for grinding, and setting it aside, wherein the grinding time is set to 20 minutes;

[0046] Step 3, mixing, place the ground material in the mixing equipment for full mixing, and set it aside for later use, and the mixing time is set to 30 minutes;

[0047] Step 4: Make pellets. Weigh the quantitatively groun...

Embodiment 3

[0050] The difference from Example 1 is that, in terms of parts by mass, the formula of the novel binder for disc pelletizing and sintering pellets is specifically as follows: calcium oxide 52%, magnesium oxide 10%, tackifier 5%, reducing Water agent 12%, organic polymer 38%;

[0051] A new type of binder for disc pelletizing and sintering pellets and a preparation method thereof, comprising the following steps:

[0052] Step 1. Prepare materials. According to the formula of the new binder of disc pelletizing and sintering pellets, all materials are weighed according to the mass percentage and set aside;

[0053] Step 2. Grinding. Place the spare materials in the grinding equipment for grinding, and set the grinding time to 40 minutes;

[0054] Step 3, mixing, place the ground material in the mixing equipment for full mixing, and set it aside for later use, wherein the mixing time is set to 60 minutes;

[0055] Step 4: Make pellets. Weigh the quantitatively ground materials ...

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Abstract

The invention discloses a novel disc pelletizing and sintering pellet binder and a preparation method thereof, the novel disc pelletizing and sintering pellet binder comprises calcium oxide, magnesium oxide, a tackifier, a water reducing agent and an organic high-molecular polymer, and the novel disc pelletizing and sintering pellet binder comprises the following components in percentage by mass: 40-52% of calcium oxide, 3-10% of magnesium oxide, 3-5% of the tackifier, 8-12% of the water reducing agent and 33-38% of the organic high-molecular polymer. The organic high-molecular polymer is set to be a water-soluble organic high-molecular polymer, the organic high-molecular polymer becomes a high-viscosity liquid after encountering water, the addition proportion is set to be 1-2% when the novel disc pelletizing and sintering pellet binder is used, and the optimal addition proportion is set to be 1.6% when the novel disc pelletizing and sintering pellet binder is used. When the novel binder is used, the quality of finished product pellets adopting the novel binder is superior to that of pellets prepared by adding bentonite. And by matching the novel binder, the pellet quality can be improved, the system cost before iron making is reduced, and conditions are created for improving the blast furnace productivity.

Description

technical field [0001] The invention belongs to the technical field of disc pelletizing adhesives, in particular to a novel adhesive for disc pelletizing and sintering pellets; in particular, it also relates to a novel adhesive for disc pelletizing and sintering pellets and its preparation method. Background technique [0002] In recent years, the production of pellets based on disc pelletizing, chain grate machine or rotary hearth furnace sintering technology has developed rapidly in the prior art. Pellets have become one of the main raw materials for blast furnaces. Pellets have good metallurgical properties, and because of their spherical shape, the air flow resistance is small, which can improve the air permeability of the upper part of the blast furnace and help increase the productivity of the blast furnace. [0003] At present, most of the binder used in the pelletizing industry is bentonite. Due to the addition of bentonite, the SiO of the pellets is increased. 2 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B1/242
CPCC22B1/242C22B1/2406
Inventor 魏杰袁明生翟海晨
Owner 河南锦瀚环保科技有限公司
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