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"Process For Pretreatment Of Coal And Minerals To Improve The Comminution Characteristics"
Abstract: A process for pretreatment of coal and minerals to improve the comminution characteristics comprising collecting the materials (coal, iron ore and manganese ore) in lumps to undergo pretreatment method; crushing and beneficiating the lumps; selecting either air or water media to perform shock loading; charging the material in vertical chambers (A, B, C) for continuous treatment of the materials; wherein shock waves are generated by compression of gas in a small chamber (1) and releasing it through electronic valves when shock waves are exposed continuously to the material kept in the said chamber to weaken the materials and widen the pre existing fractures.
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Notices, Deadlines & Correspondence
Notices, Deadlines & Correspondence
Patent Information
Application #
Filing Date
26 December 2013
Publication Number
28/2015
Publication Type
INA
Invention Field
MECHANICAL ENGINEERING
Status
Email
Parent Application
Patent Number
Legal Status
Grant Date
2018-10-09
Renewal Date
Applicants
TATA STEEL LIMITED
RESEARCH AND DEVELOPMENT AND
SCIENTIFIC SERVICES DIVISION,
JAMSHEDPUR-831001, INDIA
INDIAN INSTITUTE OF SCIENCE BANGALORE
BANGALORE-560012,
INDIA
Inventors
1. VEERENDRA SINGH
TATA STEEL LIMITED
RESEARCH AND DEVELOPMENT AND
SCIENTIFIC SERVICES DIVISION,
JAMSHEDPUR-831001, INDIA
2. PRADIP KUMAR BANERJEE
TATA STEEL LIMITED
RESEARCH AND DEVELOPMENT AND
SCIENTIFIC SERVICES DIVISION,
JAMSHEDPUR-831001, INDIA
3. DR. G. JAGADEESH
DEPT. OF AEROSPACE ENGINEERING,
INDIAN INSTITUTE OF SCIENCE BANGALORE,
BANGALORE-560012,
INDIA
Specification
FIELD OF INVENTION
The present invention relates to a process for pretreatment of coal and minerals
to improve the comminution characteristics. More particularly the process relates
to a controlled and continuous shock loading of materials for comminution.
BACKGROUND OF THE INVENTION
Coal is an important source of energy and an important reducing agent for ores
to produce the metals. Coal and ores are mined from the earth and broken down
to finer sizes. Purpose of size reduction is proficient handling of mined materials
as well as liberation and separation of values and gangue materials present in
the mined coal or ores. Particle size of mined materials varies between 300-
500mm and upgrading of values by physical or chemical separation requires fines
of
Documents
Orders
| Section | Controller | Decision Date |
|---|---|---|
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | 1454-KOL-2013-(26-12-2013)GPA.pdf | 2013-12-26 |
| 1 | 1454-KOL-2013-26-09-2023-CORRESPONDENCE.pdf | 2023-09-26 |
| 2 | 1454-KOL-2013-(26-12-2013)FORM-5.pdf | 2013-12-26 |
| 2 | 1454-KOL-2013-26-09-2023-FORM-27.pdf | 2023-09-26 |
| 3 | 1454-KOL-2013-Response to office action [18-06-2023(online)].pdf | 2023-06-18 |
| 3 | 1454-KOL-2013-(26-12-2013)FORM-3.pdf | 2013-12-26 |
| 4 | 1454-KOL-2013-PROOF OF ALTERATION [10-03-2023(online)].pdf | 2023-03-10 |
| 4 | 1454-KOL-2013-(26-12-2013)FORM-2.pdf | 2013-12-26 |
| 5 | 1454-KOL-2013-RELEVANT DOCUMENTS [29-09-2022(online)].pdf | 2022-09-29 |
| 5 | 1454-KOL-2013-(26-12-2013)FORM-1.pdf | 2013-12-26 |
| 6 | 1454-KOL-2013-RELEVANT DOCUMENTS [26-03-2020(online)].pdf | 2020-03-26 |
| 6 | 1454-KOL-2013-(26-12-2013)DRAWINGS.pdf | 2013-12-26 |
| 7 | 1454-KOL-2013-RELEVANT DOCUMENTS [31-03-2019(online)].pdf | 2019-03-31 |
| 7 | 1454-KOL-2013-(26-12-2013)CORRESPONDENCE.pdf | 2013-12-26 |
| 8 | 1454-KOL-2013-IntimationOfGrant09-10-2018.pdf | 2018-10-09 |
| 8 | 1454-KOL-2013-(26-12-2013)CLAIMS.pdf | 2013-12-26 |
| 9 | 1454-KOL-2013-(26-12-2013)ABSTRACT.pdf | 2013-12-26 |
| 9 | 1454-KOL-2013-PatentCertificate09-10-2018.pdf | 2018-10-09 |
| 10 | 1454-KOL-2013-(26-12-2013)-SPECIFICATION.pdf | 2013-12-26 |
| 10 | 1454-kol-2013-Written submissions and relevant documents (MANDATORY) [27-08-2018(online)].pdf | 2018-08-27 |
| 11 | 1454-KOL-2013-(26-12-2013)-DESCRIPTION (COMPLETE).pdf | 2013-12-26 |
| 11 | 1454-KOL-2013-HearingNoticeLetter.pdf | 2018-08-02 |
| 12 | 1454-kol-2013-CLAIMS [19-05-2018(online)].pdf | 2018-05-19 |
| 12 | 1454-KOL-2013-FORM-18.pdf | 2014-04-29 |
| 13 | 1454-KOL-2013-(13-05-2014)-FORM-1.pdf | 2014-05-13 |
| 13 | 1454-kol-2013-DRAWING [19-05-2018(online)].pdf | 2018-05-19 |
| 14 | 1454-KOL-2013-(13-05-2014)-CORRESPONDENCE.pdf | 2014-05-13 |
| 14 | 1454-KOL-2013-ENDORSEMENT BY INVENTORS [19-05-2018(online)].pdf | 2018-05-19 |
| 15 | 1454-KOL-2013-FER.pdf | 2017-11-21 |
| 15 | 1454-kol-2013-FER_SER_REPLY [19-05-2018(online)].pdf | 2018-05-19 |
| 16 | 1454-KOL-2013-FORM 3 [19-05-2018(online)].pdf | 2018-05-19 |
| 16 | 1454-kol-2013-OTHERS [19-05-2018(online)].pdf | 2018-05-19 |
| 17 | 1454-kol-2013-OTHERS [19-05-2018(online)].pdf | 2018-05-19 |
| 17 | 1454-KOL-2013-FORM 3 [19-05-2018(online)].pdf | 2018-05-19 |
| 18 | 1454-KOL-2013-FER.pdf | 2017-11-21 |
| 18 | 1454-kol-2013-FER_SER_REPLY [19-05-2018(online)].pdf | 2018-05-19 |
| 19 | 1454-KOL-2013-(13-05-2014)-CORRESPONDENCE.pdf | 2014-05-13 |
| 19 | 1454-KOL-2013-ENDORSEMENT BY INVENTORS [19-05-2018(online)].pdf | 2018-05-19 |
| 20 | 1454-KOL-2013-(13-05-2014)-FORM-1.pdf | 2014-05-13 |
| 20 | 1454-kol-2013-DRAWING [19-05-2018(online)].pdf | 2018-05-19 |
| 21 | 1454-kol-2013-CLAIMS [19-05-2018(online)].pdf | 2018-05-19 |
| 21 | 1454-KOL-2013-FORM-18.pdf | 2014-04-29 |
| 22 | 1454-KOL-2013-(26-12-2013)-DESCRIPTION (COMPLETE).pdf | 2013-12-26 |
| 22 | 1454-KOL-2013-HearingNoticeLetter.pdf | 2018-08-02 |
| 23 | 1454-KOL-2013-(26-12-2013)-SPECIFICATION.pdf | 2013-12-26 |
| 23 | 1454-kol-2013-Written submissions and relevant documents (MANDATORY) [27-08-2018(online)].pdf | 2018-08-27 |
| 24 | 1454-KOL-2013-PatentCertificate09-10-2018.pdf | 2018-10-09 |
| 24 | 1454-KOL-2013-(26-12-2013)ABSTRACT.pdf | 2013-12-26 |
| 25 | 1454-KOL-2013-IntimationOfGrant09-10-2018.pdf | 2018-10-09 |
| 25 | 1454-KOL-2013-(26-12-2013)CLAIMS.pdf | 2013-12-26 |
| 26 | 1454-KOL-2013-RELEVANT DOCUMENTS [31-03-2019(online)].pdf | 2019-03-31 |
| 26 | 1454-KOL-2013-(26-12-2013)CORRESPONDENCE.pdf | 2013-12-26 |
| 27 | 1454-KOL-2013-RELEVANT DOCUMENTS [26-03-2020(online)].pdf | 2020-03-26 |
| 27 | 1454-KOL-2013-(26-12-2013)DRAWINGS.pdf | 2013-12-26 |
| 28 | 1454-KOL-2013-RELEVANT DOCUMENTS [29-09-2022(online)].pdf | 2022-09-29 |
| 28 | 1454-KOL-2013-(26-12-2013)FORM-1.pdf | 2013-12-26 |
| 29 | 1454-KOL-2013-PROOF OF ALTERATION [10-03-2023(online)].pdf | 2023-03-10 |
| 29 | 1454-KOL-2013-(26-12-2013)FORM-2.pdf | 2013-12-26 |
| 30 | 1454-KOL-2013-Response to office action [18-06-2023(online)].pdf | 2023-06-18 |
| 30 | 1454-KOL-2013-(26-12-2013)FORM-3.pdf | 2013-12-26 |
| 31 | 1454-KOL-2013-(26-12-2013)FORM-5.pdf | 2013-12-26 |
| 31 | 1454-KOL-2013-26-09-2023-FORM-27.pdf | 2023-09-26 |
| 32 | 1454-KOL-2013-(26-12-2013)GPA.pdf | 2013-12-26 |
| 32 | 1454-KOL-2013-26-09-2023-CORRESPONDENCE.pdf | 2023-09-26 |
Search Strategy
| 1 | 1454KOL2013Searchstrategy_21-11-2017.pdf |
| 1 | DocumentuploadedduringFER_21-11-2017.pdf |
| 2 | 1454KOL2013Searchstrategy_21-11-2017.pdf |
| 2 | DocumentuploadedduringFER_21-11-2017.pdf |