SU638624A1 - Briquette production method - Google Patents
Briquette production methodInfo
- Publication number
- SU638624A1 SU638624A1 SU772448580A SU2448580A SU638624A1 SU 638624 A1 SU638624 A1 SU 638624A1 SU 772448580 A SU772448580 A SU 772448580A SU 2448580 A SU2448580 A SU 2448580A SU 638624 A1 SU638624 A1 SU 638624A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- briquettes
- pitch
- tall
- saponified
- strength
- Prior art date
Links
Classifications
-
- 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
Landscapes
- Manufacture And Refinement Of Metals (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
Description
II
Изобретение относитс к окускованию порошкообразного сырь и может быть использовано в мет аллургической i химической промьпыленности.The invention relates to the agglomeration of powdered raw materials and can be used in the allurgic and chemical industry.
Дл интенсификации процессов брикетировани и окомковани , увеличени проч ности продукта в шихту ввод т св зующие добавки, в частности, каменноугольный и нефт ной пеки.In order to intensify the processes of briquetting and pelletizing, to increase the strength of the product, binder additives, in particular, coal and oil pitch, are introduced into the mixture.
Однако применение этих веществ ограничено ввиду их канцерогенных свойств. However, the use of these substances is limited due to their carcinogenic properties.
Наиболее близким к изобретению по технической срцности н достигаемому резулы-ату вл етс способ брикетировани с использованием в качестве св зующего каменноугольного пека l .The closest to the invention in technical terms and attainable rezuly-atu is the method of briquetting using the coal tar pitch l as a binder.
Способ включает смешивание железорудного металлизованного концентрата крупностью - О,О74 мм, содержащего 73,7% железа, с каменноугольным пеком & количестве 4-8% (по массе) нагревание ишхты до 9О-1ОО С, прессование при давлении 20О-800 кгс/см и сушку брикетов при температуре 2ОО-250 С в течение ЗО мин. Операци смешивани с одновременным измельчением пека осушествл лась Б течение 15-2 О мин в шаровой мельнице без увлажнени материала. Выход брикетов класса +5 мм после 1О-ти кратного сбрасывани с высоты 1,5 м составл л 9О-91,5%.The method involves mixing of iron ore metallized concentrate of coarseness - O, O74 mm, containing 73.7% of iron, with coal tar & amount of 4-8% (by weight) heating of Ishkhta to 9О-1ОО С, pressing at a pressure of 20О-800 kgf / cm and drying of briquettes at a temperature of 2OO-250 С for 30 min. The mixing operation with simultaneous grinding of the pitch was carried out at a B mill of 15-2 O min in a ball mill without moistening the material. The output of briquettes of class +5 mm after a 10-fold drop from a height of 1.5 m was 9O-91.5%.
Недостатками указанного способа вл ютс применение в качестве св зующего каменноугольного пека, обладающего канцерогенными свойствами, вредными дл здоровь людей, а также полна нерастворимость используемого св зующего в воде, что затрудн ет его равномерное распределение в шихте.The disadvantages of this method are the use as a binder coal tar pitch with carcinogenic properties harmful to human health, as well as the complete insolubility of the binder used in water, which makes it evenly distributed in the mixture.
Цель изобретени - улучшение санитарных условий труда, увеличение прочности брикетов, упрощение и удешевление технологии,The purpose of the invention is to improve the sanitary working conditions, increase the strength of briquettes, simplify and reduce the cost of technology,
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU772448580A SU638624A1 (en) | 1977-02-01 | 1977-02-01 | Briquette production method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU772448580A SU638624A1 (en) | 1977-02-01 | 1977-02-01 | Briquette production method |
Publications (1)
Publication Number | Publication Date |
---|---|
SU638624A1 true SU638624A1 (en) | 1978-12-25 |
Family
ID=20694060
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU772448580A SU638624A1 (en) | 1977-02-01 | 1977-02-01 | Briquette production method |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU638624A1 (en) |
-
1977
- 1977-02-01 SU SU772448580A patent/SU638624A1/en active
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