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RO88102B1 - Process and device for briquetting cast-iron splinters - Google Patents

Process and device for briquetting cast-iron splinters

Info

Publication number
RO88102B1
RO88102B1 RO113463A RO11346384A RO88102B1 RO 88102 B1 RO88102 B1 RO 88102B1 RO 113463 A RO113463 A RO 113463A RO 11346384 A RO11346384 A RO 11346384A RO 88102 B1 RO88102 B1 RO 88102B1
Authority
RO
Romania
Prior art keywords
cast iron
electrodes
mold
compressing
iron shavings
Prior art date
Application number
RO113463A
Other languages
Romanian (ro)
Other versions
RO88102A2 (en
Inventor
Ion Popescu
Radu Iovanas
Nicolae Bodea
Daniela Opris
Original Assignee
Casa De Stiinta Si Tehnica Pentru Tineret
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Casa De Stiinta Si Tehnica Pentru Tineret filed Critical Casa De Stiinta Si Tehnica Pentru Tineret
Priority to RO84113463A priority Critical patent/RO88102A2/en
Publication of RO88102B1 publication Critical patent/RO88102B1/en
Publication of RO88102A2 publication Critical patent/RO88102A2/en

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  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)

Abstract

Inventia se refera la un procedeu si la un dispozitiv pentru comprimarea aschiilor din fonta ramase de la prelucrarea pieselor pe masini-unelte, sub forma de brichete compacte si rezistente, în vederea utilizarii acestora la încarcarea cubilourilor sau cuptoarelor electrice. Procedeul, conform inventiei, consta în comprimarea, într-o matrita rezistenta la temperaturi înalte, amplasata între niste electrozi conectati la o instalatie de sudare electrica, a unui amestec compus din aschii de fonta, praf de carbune, bioxid de siliciu, fluorura de calciu si carbonat de calciu, producîndu-se o încalzire la temperaturi de peste 1000 degree C, la care au loc topiri si microsuduri locale, iar impuritatile continute în aschiile de fonta sunt eliminate în afara matritei sub forma de gaze de ardere. dispozitivul pentru realizarea procedeului, conform inventiei, este alcatuit dintr-o matrita rezistenta la temperaturi înalte, amplasata între niste electrozi, unul inferior, fix, iar celalalt superior, actionat pneumatic sau hidraulic, în vederea deplasarii pe verticala spre matrita continînd materialul aglomerat. Electrozii sunt conectati la o sursa de curent, de exemplu la o instalatie de sudura electrica si alimentati la o intensitate mare si tensiune josa. Procedeul si dispozitivul, conform inventiei, asigura îmbunatatirea rezistentei termice a brichetelor obtinute si stabilitatea termica a acestora, permitînd arderea impuritatilor continue în aschiile de fonta.The invention relates to a process and to a device for compressing cast iron shavings from machining parts on machine tools, in the form of compact and resilient lighters, for use in charging cubilles or electric furnaces. According to the invention, the process consists in compressing, in a high temperature resistant die, placed between electrodes connected to an electrical welding installation, a mixture composed of cast iron shavings, coal dust, silicon dioxide, calcium fluoride and calcium carbonate, producing heating at temperatures above 1000 degrees C, at which local melting and microattending occurs, and the impurities contained in the cast iron shavings are removed outside the mold as combustion gases. the device for carrying out the process according to the invention is made up of a high temperature resistant mold placed between electrodes, a lower one fixed and the other upper, pneumatically or hydraulically actuated, in order to move vertically to the mold containing the agglomerated material. The electrodes are connected to a power source, for example in an electric welding plant and powered at high intensity and low voltage. The process and device according to the invention provide improved thermal resistance of the briquettes obtained and their thermal stability, allowing the continuous impurities to be burned in the cast iron beds.

RO84113463A 1984-01-31 1984-01-31 METHOD AND DEVICE FOR BRIQUETTING CAST IRON RO88102A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RO84113463A RO88102A2 (en) 1984-01-31 1984-01-31 METHOD AND DEVICE FOR BRIQUETTING CAST IRON

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RO84113463A RO88102A2 (en) 1984-01-31 1984-01-31 METHOD AND DEVICE FOR BRIQUETTING CAST IRON

Publications (2)

Publication Number Publication Date
RO88102B1 true RO88102B1 (en) 1985-10-31
RO88102A2 RO88102A2 (en) 1985-11-30

Family

ID=20114345

Family Applications (1)

Application Number Title Priority Date Filing Date
RO84113463A RO88102A2 (en) 1984-01-31 1984-01-31 METHOD AND DEVICE FOR BRIQUETTING CAST IRON

Country Status (1)

Country Link
RO (1) RO88102A2 (en)

Also Published As

Publication number Publication date
RO88102A2 (en) 1985-11-30

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