CN1762876A - Silicate cement raw material preparation method - Google Patents
Silicate cement raw material preparation method Download PDFInfo
- Publication number
- CN1762876A CN1762876A CNA2005100603550A CN200510060355A CN1762876A CN 1762876 A CN1762876 A CN 1762876A CN A2005100603550 A CNA2005100603550 A CN A2005100603550A CN 200510060355 A CN200510060355 A CN 200510060355A CN 1762876 A CN1762876 A CN 1762876A
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- CN
- China
- Prior art keywords
- raw material
- iron
- silicate cement
- cement raw
- present
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
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- Processing Of Solid Wastes (AREA)
Abstract
The present invention relates to building material, and is especially preparation of raw meal for Portland cement. The present invention aims at utilizing slag from iron and steel works to replace traditional iron red powder, and has the advantages of stable chemical components, convenient raw material and fuel ratio control, blocky material, low water content without need of sunning and stoving, and reduced fuel consumption caused by the heat releasing during conversion from two-valent iron to three-valent iron.
Description
Technical field
The present invention relates to a kind of preparation method of material of construction, particularly relate to the preparation of silicate cement raw material.
Background technology
During at present silicate cement was produced, the ferro-controlling raw material that rouge is done was used in the preparation of its raw material usually, its iron-holder generally between 50-73%, a wider range, powdering, water content is higher, is unfavorable for production control, the production cost height.
Summary of the invention
The objective of the invention is to utilize the waste residue of Steel Plant to substitute traditional iron oxide red powder, substitute traditional iron oxide red powder skill with waste steel slag
Art has the following advantages:
It is block that the waste steel slag material becomes, Chemical Composition is stable, and attached water part is low, avoided tedding or drying, alleviated labour intensity greatly, the irony element in the waste steel slag partly is to exist with ferrous ion, ferrous being converted in the ferric process of process, be a kind of exothermic process, can suitably reduce the coal blending amount; Because material becomes piece granular, improved the stability of batching, be convenient to the control of crude fuel proportioning, do not influence proportioning accuracy and ball milling output simultaneously.Therefore, preparing raw material with the alternative conventional red iron powder of waste steel slag can reduce production costs greatly.
Technical scheme of the present invention: its iron oxide content of waste steel slag is generally between 36-40%, comparatively stable, become block, moisture content is lower, the waste steel slag piece is ground into particulate state, controls simultaneously that other are former, the Chemical Composition of fuel, determine suitable three ratio: saturation ratio KH, silica modulus N and aluminium-oxygen modulus P, the raw material Chemical Composition behind its ball milling is extremely stable., fuel composition cement slurry each combination weight proportioning former according to each: Wingdale, coal, scum, clay were respectively 73%: 11%: 4%: 12% raw material technical parameter control.Saturation ratio, silica modulus, aluminium-oxygen modulus are respectively: 0.92-0.94,2.0-2.2,1.1-1.3 scope.
Embodiment
At first with waste steel slag by being crushed to particle diameter less than 3 centimetres, for guaranteeing the relatively stable of waste residue iron-holder, in crushing process with magnet with the sucking-off of scrap iron piece, can directly advance raw material storage then, again by raw material technical parameter requirement weight proportion, that is: Wingdale, coal, scum, clay were respectively 73%: 11%: 4%: 12% raw meal proportioning scheme proportioning is gone into mill, send the finished product raw material to burn till cement to cement kiln after levigate.
Waste steel slag substitute traditional iron oxide red powder prepare cement slurry be can utilization of waste material, produce qualified product, can save production cost again.
Claims (2)
1. the present invention relates to a kind of preparation method of silicate cement raw material, it is characterized in that: the scrap iron slag with Steel Plant substitutes traditional iron oxide red powder, and the raw material weight proportion is a Wingdale 73%: coal 11%: scum 4%: clay 12%.
2. the preparation method of a kind of silicate cement raw material according to claim 1 is characterized in that: with waste steel slag by being crushed to particle diameter less than 3 centimetres, in crushing process with magnet with the sucking-off of scrap iron piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005100603550A CN1762876A (en) | 2005-08-08 | 2005-08-08 | Silicate cement raw material preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005100603550A CN1762876A (en) | 2005-08-08 | 2005-08-08 | Silicate cement raw material preparation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1762876A true CN1762876A (en) | 2006-04-26 |
Family
ID=36747237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2005100603550A Pending CN1762876A (en) | 2005-08-08 | 2005-08-08 | Silicate cement raw material preparation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1762876A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104950861A (en) * | 2015-07-13 | 2015-09-30 | 济南大学 | Raw cement material quality control method and system based on generalized inverse matrix |
-
2005
- 2005-08-08 CN CNA2005100603550A patent/CN1762876A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104950861A (en) * | 2015-07-13 | 2015-09-30 | 济南大学 | Raw cement material quality control method and system based on generalized inverse matrix |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |