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Short-flow recycling process of drum-method circulating water sludge

A drum method and circulating water technology, applied in the field of metallurgy, can solve problems such as affecting drum production, restricting the continuous production capacity of drums, affecting the normal operation of the circulating water system, etc. Effect

Active Publication Date: 2014-01-08
MCC BAOSTEEL TECH SERVICE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During this cycle, a large amount of sedimentation silt will be produced. If the silt is not removed in time, it will seriously affect the normal operation of the circulating water system, thereby affecting the production of the drum, and restricting the continuous production capacity of the drum.

Method used

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  • Short-flow recycling process of drum-method circulating water sludge
  • Short-flow recycling process of drum-method circulating water sludge
  • Short-flow recycling process of drum-method circulating water sludge

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] The components of each part by weight in the slurry of the gunning slag tank are as follows:

[0037]

[0038]

[0039] Wherein: in embodiment 1, the residue after the sieve of 40 μm is crossed by mud is 2wt%;

[0040] The water is middle water;

[0041] The accelerator is TK-782;

[0042] The early strength agent is calcium sulfate hemihydrate;

[0043] The modifier is microsilica;

[0044] The pumping agent is bentonite.

[0045] Microsilica fume is microsilica fume produced by Shanghai Tiankai Silicon Fume Material Co., Ltd.;

[0046] The accelerator is a high-efficiency accelerator produced by Shanghai Tiankai Silicon Powder Material Co., Ltd.;

[0047] The slurry of the gunning slag tank in embodiment 1 is gunned according to the gunning method in the present invention; specifically:

[0048] 1) First pour the sludge into the spray tank for stirring;

[0049] 2) Put the flocculant, early strength agent, modifier and pumping agent in the above parts by ...

Embodiment 2

[0052] The components of each part by weight in the slurry of the gunning slag tank are as follows:

[0053]

[0054] In embodiment 2, the residue after the sieve of 40 μm is crossed by sludge is 5wt%;

[0055] The water is middle water;

[0056] The accelerator is TK-782;

[0057] The early strength agent is calcium sulfate hemihydrate;

[0058] The modifier is microsilica;

[0059] The pumping agent is bentonite.

[0060] Microsilica fume is microsilica fume produced by Shanghai Tiankai Silicon Fume Material Co., Ltd.;

[0061] The accelerator is a high-efficiency accelerator produced by Shanghai Tiankai Silicon Powder Material Co., Ltd.;

[0062] The slurry of the gunning slag tank in embodiment 2 is gunned according to the gunning method in the present invention; specifically:

[0063] 1) First pour the sludge into the spray tank for stirring;

[0064] 2) Put the flocculant, early strength agent, modifier and pumping agent in the above parts by weight into the sp...

Embodiment 3

[0067] The components of each part by weight in the slurry of the gunning slag tank are as follows:

[0068]

[0069] In embodiment 3, the residue after the sieve of 40 μm is crossed by sludge is 0wt%;

[0070] The water is middle water;

[0071] The accelerator is TK-782;

[0072] The early strength agent is calcium sulfate hemihydrate;

[0073] The modifier is microsilica;

[0074] The pumping agent is bentonite.

[0075] Microsilica fume is microsilica fume produced by Shanghai Tiankai Silicon Fume Material Co., Ltd.;

[0076]The accelerator is a high-efficiency accelerator produced by Shanghai Tiankai Silicon Powder Material Co., Ltd.;

[0077] The slurry of the gunning slag tank in embodiment 3 is gunned according to the gunning method in the present invention; specifically:

[0078] 1) First pour the sludge into the spray tank for stirring;

[0079] 2) Put the flocculant, early strength agent, modifier and pumping agent in the above parts by weight into the spr...

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Abstract

The invention provides a short-flow recycling process of drum-method circulating water sludge, and discloses a sludge body taking sludge as a main material of a gunning slag ladle. The sludge body of the gunning slag ladle comprises the following components in parts by weight: 48-70 parts of sludge, 1.1-5.6 parts of additive, and 30-50 parts of water, wherein the sludge is precipitated sludge generated in three-stage precipitation in a drum-method circulating water treatment process; in total mass of the sludge, the remained amount is less than or equal to 5 percent by weight after sludge is screened through a sieve screen of 40 mu m; the additive comprises 0.1-0.7 part of accelerator by weight and 1.0-3.5 parts of early strength agent. The slurry can be used for gunning slag ladles, so that the drum slag treatment process is improved, and the sludge can be recycled.

Description

technical field [0001] The invention relates to a sludge recycling process in the field of metallurgy, in particular to a sludge recycling process produced by a circulating water treatment process in a drum slag treatment process. Background technique [0002] Baosteel drum slag treatment process is an environmentally friendly new technology to realize the comprehensive utilization of steel slag. It has been widely concerned at home and abroad in the field of steel slag treatment for its technical advantages such as short process, high efficiency, low cost, energy saving, environmental protection, safety and reliability. , has broad market prospects. As a supporting process of the drum slag treatment technology - the circulating water treatment process is also an integral part of the entire drum slag treatment process. The existing circulating water treatment process mainly includes the following process steps: cooling water, cooling hot steel slag, inflow Collecting ditch,...

Claims

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Application Information

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IPC IPC(8): C04B30/00
Inventor 吴守仓胡治春杨刚顾恒星刘华祥
Owner MCC BAOSTEEL TECH SERVICE
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