Slag ladle protective agent using steel slag as main raw material, and preparation method and spray repair method thereof

A technology of main raw material and protective agent, applied in the field of metallurgy, can solve problems such as increased content of free calcium oxide, difficulty in comprehensive utilization of steel slag, poor stability of steel slag, etc., to achieve the effects of improving stability, promoting a virtuous cycle, and increasing tank life

Active Publication Date: 2013-05-29
MCC BAOSTEEL TECH SERVICE +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this also creates a situation: firstly, quicklime as a raw material for gunning has a negative impact on the stability of steel slag, which increases the content of free calcium oxide in steel slag transported through the slag tank, and deteriorates the stability of steel slag. It causes difficulties; secondly, clay and quicklime are natural resources, and it is a waste to use them as raw materials for gunning, and it increases the cost of gunning; thirdly, a large amount of energy is consumed during the processing and calcination of quicklime, which emits carbon dioxide and seriously pollutes the air

Method used

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  • Slag ladle protective agent using steel slag as main raw material, and preparation method and spray repair method thereof
  • Slag ladle protective agent using steel slag as main raw material, and preparation method and spray repair method thereof
  • Slag ladle protective agent using steel slag as main raw material, and preparation method and spray repair method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Prepare 1 ton of slag irrigation protective agent with steel slag as the main raw material:

[0039] The slag pot protective agent with steel slag as the main raw material of this embodiment, its raw material components and its proportioning ratio are shown in Table 1; the performance parameters of the steel slag powder used in its raw materials are shown in Table 2; the specific components of its raw materials as shown in Table 3.

[0040] Its preparation method (process flow chart as figure 2 shown) is:

[0041] After weighing steel slag powder, coagulant, plasticizer and curing agent according to the ratio of raw materials, put the weighed raw materials in a forced mixer, add water according to the ratio and stir evenly for 10 minutes to form a slurry material, which is A slag tank protective agent with steel slag as the main raw material.

[0042] The method (such as image 3 (shown) is: the obtained slag tank protective agent with steel slag as the main raw ma...

Embodiment 2

[0045] Prepare 1 ton of slag irrigation protective agent with steel slag as the main raw material:

[0046] The slag pot protective agent with steel slag as the main raw material of this embodiment, its raw material components and its proportioning ratio are shown in Table 1; the performance parameters of the steel slag powder used in its raw materials are shown in Table 2; the specific components of its raw materials as shown in Table 3.

[0047] Its preparation method is:

[0048] After weighing steel slag powder, coagulant, plasticizer and curing agent according to the ratio of raw materials, put the weighed raw materials in a forced mixer, add water according to the ratio and stir evenly for 10 minutes to form a slurry material, which is A slag tank protective agent with steel slag as the main raw material.

[0049] The method of repairing the slag tank with the slag tank protective agent with steel slag as the main raw material is: spray the obtained slag tank protectiv...

Embodiment 3

[0052] Prepare 1 ton of slag irrigation protective agent with steel slag as the main raw material:

[0053] The slag pot protective agent with steel slag as the main raw material of this embodiment, its raw material components and its proportioning ratio are shown in Table 1; the performance parameters of the steel slag powder used in its raw materials are shown in Table 2; the specific components of its raw materials as shown in Table 3.

[0054] Its preparation method is:

[0055]After weighing steel slag powder, coagulant, plasticizer and curing agent according to the ratio of raw materials, put the weighed raw materials in a forced mixer, add water according to the ratio and stir evenly for 10 minutes to form a slurry material, which is A slag tank protective agent with steel slag as the main raw material.

[0056] The method of repairing the slag tank with the slag tank protective agent with steel slag as the main raw material is: spray the obtained slag tank protective...

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Abstract

The invention belongs to the field of metallurgy, and relates to a slag ladle protective agent using steel slag as a main raw material, and a preparation method and a spray repair method thereof. The slag ladle protective agent which comprises the following main raw materials in parts by weight: 10-30 parts of steel slag powder and 70-90 parts of water. The slag ladle protective agent also comprises a coagulant, a plasticizer and a curing agent, wherein the coagulant accounts for 0.5-2.0 wt% of the steel slag powder, the plasticizer accounts for 0.3-5.0 wt% of the steel slag powder, and the curing agent accounts for 0.3-3.0 wt% of the steel slag powder. The spray repair protective agent is uniformly sprayed to the inner wall of the hot-state slag ladle to form a slag ladle protective filmlayer, thereby effectively preventing the slag ladle from adhesion, optimizing the quality of the steel slag, enhancing the stability of the steel slag, prolonging the service life of the ladle, lowering the production cost, being beneficial to equalizing and organizing production and promoting the benign circulation of production.

Description

technical field [0001] The invention belongs to the field of metallurgy, and relates to a slag tank protective agent with steel slag as the main raw material, a preparation method and a gunning method thereof. Background technique [0002] The slag tank protective agent is a kind of slag tank protection material vigorously promoted by major metallurgical industries at present. It mainly uses quicklime and clay as raw materials. Such as figure 1 As shown), the purpose is to avoid direct contact between molten steel slag and tank wall, prevent slag tank from sticking to slag, increase tank life, reduce production cost, and help to balance production and promote a virtuous circle of production. However, this also creates a situation: firstly, quicklime as a raw material for gunning has a negative impact on the stability of steel slag, which increases the content of free calcium oxide in steel slag transported through the slag tank, and deteriorates the stability of steel slag....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/66C21B3/10
Inventor 武传金刘国威杨刚张健
Owner MCC BAOSTEEL TECH SERVICE
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