CN104232817A - Shot-flow production technology for casting dumbbell and barbell products by use of scrap iron and steel slag - Google Patents
Shot-flow production technology for casting dumbbell and barbell products by use of scrap iron and steel slag Download PDFInfo
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- CN104232817A CN104232817A CN201310233446.4A CN201310233446A CN104232817A CN 104232817 A CN104232817 A CN 104232817A CN 201310233446 A CN201310233446 A CN 201310233446A CN 104232817 A CN104232817 A CN 104232817A
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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
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
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Abstract
A short-flow technology for casting dumbbells and barbells from scrap iron and steel slag comprises the following steps: (1) crushing steel slag, iron slag, flowing molten iron or iron and steel scrap produced from a blast furnace for smelting molten iron in a large iron and steel smelting plant, and screening and recycling iron-containing raw materials; and (2) putting the recycled iron-containing raw materials into one or more intermediate frequency furnaces of a foundry for recycling so as to heat and smelt molten iron, keeping the temperature at 1300-1600 DEG C, and casting to obtain the dumbbell and barbell products. According to the invention, waste materials are reutilized; material flow is minimized; and the defect that energy consumption of a conventional casting flow is high, pollution is serious, thermal insulation and transportation of short-flow molten iron are difficult and cost reduction is not obvious is overcome.
Description
Technical field:
The present invention relates to a kind of casting technique, particularly a kind of productive technology of short flow utilizing steel scrap scum to cast thick stick dumbbell product.
Background technology:
At present, foundry is a complete independently system, its technical process is as shown in Figure 1: after the melt iron of Large Steel ironworks, bread iron (ingot iron) is cast through casting machine, then be transported to foundry by length way, foundry also will purchase coke, iron and steel scrap, the material such as waste residue and solvent simultaneously, then use cupola furnace or intermediate frequency furnace again these materials to be smelted into molten iron, after being finally cast to mold, be cast as foundry goods.The cast factory of this routine needs to buy material that is a large amount of and storage melt iron, but also will possess cast iron melting instrument bantam as large in cupola furnace or medium-frequency induction furnace etc., consumes social resources greatly, contaminate environment.
Qingzhou Haozhang Casting Co., Ltd., the patent No. 200910256118 of Shandong University Building's application, the patent No. 201010107271.9 of proprietary term " productive technology of short flow of structure type cast iron part " and Qian'an Shi Jintang Ductile Iron Pipes Co., Ltd.'s application, proprietary term " short-flow melting, sodium silicate molding produces the technique of nodular iron casting ", the foundry goods produced because of it needs the trade mark, the performances such as physics and machinery there is strict demand, can only blast-melted be filled to intermediate frequency furnace after add the composition that a certain proportion of iron and steel scrap and smelting agent etc. adjust molten iron again, the intermediate frequency furnace that molten iron is housed the in addition insulation that is energized in the process being transported to foundry is a technical barrier, and the process of transhipment also also exists potential safety hazard, it is more limited for addressing these problems reduction product cost.
Summary of the invention:
Object of the present invention is just to overcome the insulation of large, the seriously polluted and above-mentioned short route molten iron of the power consumption of above-mentioned routine casting flow process and a transhipment difficult problem and cost and declines the shortcoming such as not obvious, and provide a kind of steel scrap scum to cast the abbreviated system of thick stick dumbbell, this technique can recycle, reduces logistics by waste material, reduces product cost.
As above conceive, technical scheme of the present invention is: a kind of abbreviated system of steel scrap scum casting thick stick dumbbell, is characterized in that: comprise the steps:
1. by the slag of the blast furnace output of large-scale iron and steel smeltery melt iron, scum, flowing molten iron or iron and steel scrap are pulverized, and the raw material containing ferrous components is reclaimed in screening;
2. the raw material containing ferrous components reclaimed is put into one or more intermediate frequency furnace of foundry and recycle melt iron of heating, temperature remains on 1300-1600 DEG C, is then cast into thick stick dumbbell product.
The construction of above-mentioned foundry at the blast furnace periphery 100km of large-scale iron and steel smeltery melt iron with inner compartment.
1. above-mentioned steps uses slag grinding machine or flotation machine or magnetic separator by slag, and scum, flowing molten iron or iron and steel scrap are pulverized, and the raw material containing ferrous components is reclaimed in screening.
The composition of above-mentioned thick stick dumbbell product can lower than the minimum trade mark of HT100 cast iron.
Principle of the present invention is: because of the singularity of thick stick dumbbell product, only demand weight to reach the object of body-building, and the physical and mechanical property not requirement to thick stick dumbbell product, the iron powder of recovery or particle and steel scrap, scrap iron are directly put into intermediate frequency furnace melt iron, temperature remains on 1300-1600 DEG C, then casting thick stick dumbbell product, its composition can lower than the minimum trade mark of HT100 cast iron.
The present invention has following advantage and positively effect:
1, large-scale iron and steel smeltery blast furnace smelting molten iron meeting every day output is a large amount of steel slag and iron slag, slag and flowing molten iron etc., because its output is large, iron-holder is low, is generally used for repair the roads, and manufactures cement and lagging material, so its cost is extremely cheap.The present invention, using these steel slag and iron slags, slag and the flowing molten iron raw material as casting thick stick dumbbell product, significantly reduces production cost.
2, foundry is arranged on blast furnace 100km with inner compartment by the present invention, can reduce transportation cost.
3, the present invention uses the equipment such as slag grinding machine, flotation machine, magnetic separator by slag, and scum and flowing molten iron carry out pulverizing, screening recovery ferrous components.General iron powder or the particle that can reclaim 7%-10% ferrous components per ton, and surplus materials can be used as and repairs the roads, manufactures cement and lagging material, accomplishes to make the best use of everything, considerably improves the utilization ratio of raw material, protect environment.
4, due to intermediate frequency furnace, to have burn-off rate fast, and solution temperature is even, the advantages such as oxidation loss is little, and metal ingredient is even, can from black furnace directly molten, can start at any time or shut down, therefore as the first-selected instrument casting thick stick dumbbell melt iron.When production capacity demand is large, the present invention can use multiple intermediate frequency furnace circulation intensification melt iron, previous intermediate frequency furnace molten iron has been cast, next intermediate frequency furnace molten iron is just in time warmed up to the temperature that can cast, reduce the soaking time of each stove as far as possible, improve casting manipulations efficiency, accomplish lean production, and industrial electricity using at the peak time (night etc.) can be utilized, reduce electric cost.
Accompanying drawing illustrates:
Fig. 1 is the schema of conventional casting;
Fig. 2 is process flow sheet of the present invention.
Embodiment:
As shown in Figure 2: a kind of abbreviated system of steel scrap scum casting thick stick dumbbell, comprises the steps:
1. by the slag of the blast furnace output of large-scale iron and steel smeltery melt iron, scum, flowing molten iron or iron and steel scrap use slag grinding machine or flotation machine or magnetic separator by slag, and scum, flowing molten iron or iron and steel scrap are pulverized, and the raw material containing ferrous components is reclaimed in screening;
2. the raw material containing ferrous components reclaimed is put into one or more intermediate frequency furnace of foundry and recycle melt iron of heating, temperature remains on 1300-1600 DEG C, is then cast into thick stick dumbbell product, and the composition of this thick stick dumbbell product can lower than the minimum trade mark of HT100 cast iron.The construction of described foundry at the blast furnace periphery 100km of large-scale iron and steel smeltery melt iron with inner compartment.
The above, it is only preferred embodiment of the present invention, not any pro forma restriction is done to the present invention, everything according to technical spirit of the present invention, above embodiment is done any simple modification, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (4)
1. an abbreviated system for steel scrap scum casting thick stick dumbbell, is characterized in that: comprise the steps:
1. by the slag of the blast furnace output of large-scale iron and steel smeltery melt iron, scum, flowing molten iron or iron and steel scrap are pulverized, and the raw material containing ferrous components is reclaimed in screening;
2. the raw material containing ferrous components reclaimed is put into one or more intermediate frequency furnace of foundry and recycle melt iron of heating, temperature remains on 1300-1600 DEG C, is then cast into thick stick dumbbell product.
2. the abbreviated system of steel scrap scum according to claim 1 casting thick stick dumbbell, is characterized in that: the construction of described foundry at the blast furnace periphery 100km of large-scale iron and steel smeltery melt iron with inner compartment.
3. the abbreviated system of steel scrap scum casting thick stick dumbbell according to claim 1, it is characterized in that: 1. above-mentioned steps uses slag grinding machine or flotation machine or magnetic separator by slag, and scum, flowing molten iron or iron and steel scrap are pulverized, the raw material containing ferrous components is reclaimed in screening.
4. the abbreviated system of steel scrap scum casting thick stick dumbbell according to claim 1, is characterized in that: the composition of above-mentioned thick stick dumbbell product can lower than the minimum trade mark of HT100 cast iron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310233446.4A CN104232817A (en) | 2013-06-13 | 2013-06-13 | Shot-flow production technology for casting dumbbell and barbell products by use of scrap iron and steel slag |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310233446.4A CN104232817A (en) | 2013-06-13 | 2013-06-13 | Shot-flow production technology for casting dumbbell and barbell products by use of scrap iron and steel slag |
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| CN104232817A true CN104232817A (en) | 2014-12-24 |
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| CN201310233446.4A Pending CN104232817A (en) | 2013-06-13 | 2013-06-13 | Shot-flow production technology for casting dumbbell and barbell products by use of scrap iron and steel slag |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107413997A (en) * | 2017-09-30 | 2017-12-01 | 徐州九鼎机电总厂 | A kind of forging method of dumbbell |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201020198Y (en) * | 2007-04-19 | 2008-02-13 | 昆明新云体育用品有限责任公司 | Body-building instrument |
| CN101445889A (en) * | 2008-12-26 | 2009-06-03 | 马鞍山市益丰实业集团有限公司 | High abrasion proof re-synthesizing cast iron grinding ball and production method thereof |
| CN101463450A (en) * | 2008-12-26 | 2009-06-24 | 马鞍山市益丰实业集团有限公司 | Multicomponent microalloy metal mold casting grinding ball and production method thereof |
| CN101773989A (en) * | 2010-01-29 | 2010-07-14 | 迁安市津唐球墨铸管有限公司 | Process for producing ductile cast iron by short-flow melting and sodium silicate sand molding |
| CN201612971U (en) * | 2009-10-29 | 2010-10-27 | 申明堂 | Dumb bell and kittle bell equipped with chilling block inside |
-
2013
- 2013-06-13 CN CN201310233446.4A patent/CN104232817A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201020198Y (en) * | 2007-04-19 | 2008-02-13 | 昆明新云体育用品有限责任公司 | Body-building instrument |
| CN101445889A (en) * | 2008-12-26 | 2009-06-03 | 马鞍山市益丰实业集团有限公司 | High abrasion proof re-synthesizing cast iron grinding ball and production method thereof |
| CN101463450A (en) * | 2008-12-26 | 2009-06-24 | 马鞍山市益丰实业集团有限公司 | Multicomponent microalloy metal mold casting grinding ball and production method thereof |
| CN201612971U (en) * | 2009-10-29 | 2010-10-27 | 申明堂 | Dumb bell and kittle bell equipped with chilling block inside |
| CN101773989A (en) * | 2010-01-29 | 2010-07-14 | 迁安市津唐球墨铸管有限公司 | Process for producing ductile cast iron by short-flow melting and sodium silicate sand molding |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107413997A (en) * | 2017-09-30 | 2017-12-01 | 徐州九鼎机电总厂 | A kind of forging method of dumbbell |
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Application publication date: 20141224 |