CN1451651A - Improved method and apparatus for combined drum granulating large granule urea - Google Patents
Improved method and apparatus for combined drum granulating large granule urea Download PDFInfo
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- CN1451651A CN1451651A CN 02116695 CN02116695A CN1451651A CN 1451651 A CN1451651 A CN 1451651A CN 02116695 CN02116695 CN 02116695 CN 02116695 A CN02116695 A CN 02116695A CN 1451651 A CN1451651 A CN 1451651A
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- urea
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- bed
- fluidized
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Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN 02116695 CN1288129C (en) | 2002-04-16 | 2002-04-16 | Improved method and apparatus for combined drum granulating large granule urea |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN 02116695 CN1288129C (en) | 2002-04-16 | 2002-04-16 | Improved method and apparatus for combined drum granulating large granule urea |
Publications (2)
Publication Number | Publication Date |
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CN1451651A true CN1451651A (en) | 2003-10-29 |
CN1288129C CN1288129C (en) | 2006-12-06 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN 02116695 Expired - Fee Related CN1288129C (en) | 2002-04-16 | 2002-04-16 | Improved method and apparatus for combined drum granulating large granule urea |
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CN (1) | CN1288129C (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100434152C (en) * | 2003-11-10 | 2008-11-19 | 帝斯曼知识产权资产管理有限公司 | Process for the preparation of urea granules |
CN102964148A (en) * | 2012-12-03 | 2013-03-13 | 李思斌 | Improved large granule urea combined drum granulating method and equipment |
CN104693135A (en) * | 2013-12-04 | 2015-06-10 | 山东联合化工股份有限公司 | Urea-caking-proofing urine washing tower |
CN109173926A (en) * | 2018-08-29 | 2019-01-11 | 上海化工研究院有限公司 | A kind of method of improved drum granulating production granular complex fertilizer |
CN109437984A (en) * | 2019-01-03 | 2019-03-08 | 灵谷化工有限公司 | A kind of process units and operation process that urea bulky grain is switched to middle particle |
CN112358327A (en) * | 2020-11-26 | 2021-02-12 | 河南晋开化工投资控股集团有限责任公司 | Energy-saving type large-particle urea granulation system and granulation process |
-
2002
- 2002-04-16 CN CN 02116695 patent/CN1288129C/en not_active Expired - Fee Related
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100434152C (en) * | 2003-11-10 | 2008-11-19 | 帝斯曼知识产权资产管理有限公司 | Process for the preparation of urea granules |
CN102964148A (en) * | 2012-12-03 | 2013-03-13 | 李思斌 | Improved large granule urea combined drum granulating method and equipment |
CN102964148B (en) * | 2012-12-03 | 2014-07-16 | 李思斌 | Improved large granule urea combined drum granulating method and equipment |
CN104693135A (en) * | 2013-12-04 | 2015-06-10 | 山东联合化工股份有限公司 | Urea-caking-proofing urine washing tower |
CN109173926A (en) * | 2018-08-29 | 2019-01-11 | 上海化工研究院有限公司 | A kind of method of improved drum granulating production granular complex fertilizer |
CN109173926B (en) * | 2018-08-29 | 2020-06-16 | 上海化工研究院有限公司 | Improved method for producing granular compound fertilizer by drum granulation |
CN109437984A (en) * | 2019-01-03 | 2019-03-08 | 灵谷化工有限公司 | A kind of process units and operation process that urea bulky grain is switched to middle particle |
CN112358327A (en) * | 2020-11-26 | 2021-02-12 | 河南晋开化工投资控股集团有限责任公司 | Energy-saving type large-particle urea granulation system and granulation process |
Also Published As
Publication number | Publication date |
---|---|
CN1288129C (en) | 2006-12-06 |
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Legal Events
Date | Code | Title | Description |
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C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Beijing Dalike Technology Co. Ltd. Assignor: Li Sibin Contract record no.: 2012990000152 Denomination of invention: Improved large granule urea combined drum granulating method and equipment Granted publication date: 20061206 License type: Exclusive License Open date: 20031029 Record date: 20120329 |
|
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061206 Termination date: 20210416 |
|
CF01 | Termination of patent right due to non-payment of annual fee |