CN106269169A - A kind of agstone preparation method - Google Patents
A kind of agstone preparation method Download PDFInfo
- Publication number
- CN106269169A CN106269169A CN201610813991.4A CN201610813991A CN106269169A CN 106269169 A CN106269169 A CN 106269169A CN 201610813991 A CN201610813991 A CN 201610813991A CN 106269169 A CN106269169 A CN 106269169A
- Authority
- CN
- China
- Prior art keywords
- granule
- agstone
- equal
- dismembyator
- winnower
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C21/00—Disintegrating plant with or without drying of the material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/18—Adding fluid, other than for crushing or disintegrating by fluid energy
- B02C23/20—Adding fluid, other than for crushing or disintegrating by fluid energy after crushing or disintegrating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/18—Adding fluid, other than for crushing or disintegrating by fluid energy
- B02C23/20—Adding fluid, other than for crushing or disintegrating by fluid energy after crushing or disintegrating
- B02C23/22—Adding fluid, other than for crushing or disintegrating by fluid energy after crushing or disintegrating with recirculation of material to crushing or disintegrating zone
Abstract
The invention discloses a kind of agstone preparation method, it comprises the following steps: 1) be ground raw limestone；2) agstone after grinding carries out sorting for the first time through waterfall stream winnower A；3) will be greater than 1000um granule and send dismembyator regrinding back to, will send in cyclone separator less than or equal to 1000um granule；4) waterfall stream winnower B will be transported to less than or equal to 1000um granule carry out sorting for the second time；5) store 300～1000um granules and will sort less than or equal to powder particles feeding powder concentrator in 300um carries out third time；6) store less than or equal to 45um granule, 45～300um granules are carried out regrinding.The present invention had both met the granule of CFBB and had entered stove requirement, can regulate again thick, fine powder ratio, through separating step by step and twice circulation so that limestone preparation system has obtained great optimization at the control aspect such as particle diameter, the efficiency of separation.
Description
Technical field
The present invention relates to agstone preparation field, particularly relate to a kind of agstone preparation method.
Background technology
Desulphurization system of circulating fluidized bed boiler is divided into desulfuration in furnace and the outer wet desulphurization of stove.Want lift circular fluidizing boiler
Desulfuration in furnace efficiency, usually require that enter stove particle diameter distribution meet following two require: one is less than 45um(micron) particle diameter
Micropowder enter stove ratio and not can exceed that 10%, two are desirable to charging powder particle diameter less than 1 millimeter.But, current recirculating fluidized bed
The furnace parameters that enters of boiler is difficult to meet requirements above, and the micropowder furnace entering volume of especially less than 45um is the most overproof, in this gives stove
Desulfurization brings adverse effect, and on the one hand this partial particulate is not utilized effectively, and reduces desulfuration efficiency, adds limestone
Usage amount, on the other hand add flying dust amount and bring more unnecessary operation energy consumption to aid system.Therefore, boiler factory
Require that increasing 300～1000um granules enters stove ratio.
Stove foreign cigarette air humidity method desulfurized limestone powder generally has two kinds of sources: 1. utilize ball wet milk directly to grind pulping；
2. it is contemplated that directly use that column mill+pneumatic separation system sub-elects less than 45um micropowder slurrying.If can meet
Micropowder demand, in the case of can meeting again desulfuration in furnace agstone preparation amount, uses the 2nd kind of scheme to be better than first simultaneously
The scheme of kind.
In traditional agstone preparation system, will increase 300～1000um granules enters stove ratio, it is contemplated that increase
Column mill grind gap, but grind gap make it increase if adjusted, coarse powder yield necessarily makes micropowder produce after increasing
Amount reduces, even more so that wet desulphurization demand can not be met.
Summary of the invention
It is an object of the invention to overcome the deficiencies in the prior art, it is provided that a kind of granule both having met CFBB
Enter stove requirement, the agstone preparation method of micropowder yield can be increased again.
It is an object of the invention to be achieved through the following technical solutions: a kind of agstone preparation method, it include with
Lower step:
1) raw limestone is ground by dismembyator；
2) agstone after grinding carries out sorting for the first time through waterfall stream winnower A, sub-elects more than 1000um granule and little
In or equal to 1000um granule；
3) will be greater than 1000um granule and send dismembyator regrinding back to, cyclone separator will be sent into less than or equal to 1000um granule
In；
4) it is transported in another one waterfall stream winnower B carry out less than or equal to 1000um granule by isolated for cyclone separator
Second time sorting；
5) the 300～1000um granules that waterfall stream winnower B sub-elects are put in finished product coarse powder bin, will be less than or equal to 300um
Middle powder particles is sent into and is carried out in powder concentrator sorting for the third time；
6) what powder concentrator was selected is stored in finished product fine powder bin less than or equal to 45um granule, sends 45～300um granules back to dismembyator
Carry out regrinding.
Preferably, described dismembyator is column mill.
Preferably, described dismembyator front end arranges surge bunker, and limestone is introduced into surge bunker and enters back into dismembyator.
Preferably, the agstone that described dismembyator is ground is sent in waterfall stream winnower A by bucket elevator A.
Preferably, described dismembyator regrinding is sent more than 1000um granule back to through returning charge scrapper conveyor.
Preferably, the isolated agstone of described cyclone separator passes sequentially through chain-linked conveyer A, bucket elevator B send
Enter in waterfall stream winnower B.
Preferably, described cyclone separator, chain-linked conveyer A and waterfall stream winnower B are removed by sack cleaner A
Dirt.
Preferably, described powder concentrator carries out dedusting by sack cleaner B.
Preferably, powder machine will be stored in finished product fine powder bin less than or equal to 45um granule by chain-linked conveyer C.
Agstone using method prepared by a kind of method as defined above: the agstone in finished product coarse powder bin is sent into stove
Thorax participates in desulphurization during combustion or carries out smoke-gas wet desulfurization after the agstone slurrying in finished product fine powder bin.
The invention has the beneficial effects as follows: the present invention ensure that after column mill grinds gap increase, 300～1000um
In the case of grain increases, 45um～300um grain sorting is out re-grind, improves the product less than 45um micropowder
Amount.(first isolate the granule less than or equal to 1000um through separating step by step, then isolate 300um～1000um granule, finally
From less than or equal to 300um granule is isolated the granule less than or equal to 45um) and twice circulation (twice circulation respectively:
1. grind what waterfall stream winnower A separated again more than 1000um granule；2. powder concentrator is selected more than 45um and be less than
Or the granule equal to 300um is transported in column mill carry out secondary grinding) so that limestone preparation system is controlling particle diameter, is dividing
The aspects such as efficiency are selected to obtain great optimization.300um～the 1000um granule produced is sent into burner hearth and is participated in desulfurization, simultaneously by low
Carrying out the outer smoke-gas wet desulfurization of stove after 45um granule slurrying, therefore, the useful granule that whole system produces increases, preparation method
More science.The present invention can be according to outer (smoke-gas wet desulfurization) the desulfurization demand regulation large or fine granule of (boiler desulfurization) stove in stove
Yield ratio, method is reasonable, and this method has been obtained for the accreditation of associated specialist and manufacturer, and can bring considerable economy
Benefit.
Accompanying drawing explanation
Fig. 1 is the preparation system structural representation that agstone preparation method of the present invention uses.
Detailed description of the invention
Technical scheme is described in further detail below in conjunction with the accompanying drawings, but protection scope of the present invention is not limited to
The following stated.
In conjunction with Fig. 1 so that agstone preparation method to be described, it comprises the following steps:
1) raw limestone is ground by dismembyator；
2) agstone after grinding matches with sorting blower fan A through waterfall stream winnower A(waterfall stream winnower A) carry out for the first time
Sorting, sub-elects and (should not participate in desulphurization reaction more than 1000um granule more than 1000um granule, more than 1000um granule be also referred to as
Defective powder) and less than or equal to 1000um granule (qualified powder)；
3) will be greater than 1000um granule and send dismembyator regrinding back to, cyclone separator will be sent into less than or equal to 1000um granule
In；
4) it is transported to another one waterfall stream winnower B(waterfall stream by isolated for cyclone separator less than or equal to 1000um granule
Winnower B with sorting blower fan B match) in carry out second time sort；
5) the 300～1000um granules that waterfall stream winnower B sub-elects are put in finished product coarse powder bin, will be less than or equal to 300um
Middle powder particles (middle powder) is sent into and is carried out in powder concentrator sorting for the third time；
6) what powder concentrator was selected is stored in finished product fine powder bin less than or equal to 45um granule (micropowder), by 45～300um granules (in
Fine powder) send dismembyator back to and carry out regrinding.
Preferably, described dismembyator is column mill.
Preferably, described dismembyator front end arranges surge bunker, and limestone is introduced into surge bunker and enters back into dismembyator.
Preferably, a kind of agstone preparation method according to claim 3, it is characterised in that: described grinding
The agstone that device grinds is sent in waterfall stream winnower A by bucket elevator A.
Preferably, described dismembyator regrinding is sent more than 1000um granule back to through returning charge scrapper conveyor.
Preferably, the isolated agstone of described cyclone separator passes sequentially through chain-linked conveyer A, bucket elevator B send
Enter in waterfall stream winnower B.
Preferably, described cyclone separator, chain-linked conveyer A and waterfall stream winnower B are removed by sack cleaner A
Dirt.
Preferably, described powder concentrator carries out dedusting by sack cleaner B.
Preferably, powder machine will be stored in finished product fine powder bin less than or equal to 45um granule by chain-linked conveyer C.
Agstone using method prepared by a kind of method as defined above: the agstone in finished product coarse powder bin is sent into stove
Thorax participates in desulphurization during combustion or carries out smoke-gas wet desulfurization after the agstone slurrying in finished product fine powder bin.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, it is noted that all
Any amendment, equivalent and the improvement etc. made within the spirit and principles in the present invention, should be included in the guarantor of the present invention
Within the scope of protecting.
Claims (9)
1. an agstone preparation method, it is characterised in that: it comprises the following steps:
1) raw limestone is ground by dismembyator；
2) agstone after grinding carries out sorting for the first time through waterfall stream winnower A, sub-elects more than 1000um granule and little
In or equal to 1000um granule；
3) will be greater than 1000um granule and send dismembyator regrinding back to, cyclone separator will be sent into less than or equal to 1000um granule
In；
4) it is transported in another one waterfall stream winnower B carry out less than or equal to 1000um granule by isolated for cyclone separator
Second time sorting；
5) the 300～1000um granules that waterfall stream winnower B sub-elects are put in finished product coarse powder bin, will be less than or equal to 300um
Middle powder particles is sent into and is carried out in powder concentrator sorting for the third time；
6) what powder concentrator was selected is stored in finished product fine powder bin less than or equal to 45um granule, sends 45～300um granules back to dismembyator
Carry out regrinding.
A kind of agstone preparation method the most according to claim 1, it is characterised in that: described dismembyator is post mill
Machine.
A kind of agstone preparation method the most according to claim 1 and 2, it is characterised in that: described dismembyator front end
Arranging surge bunker, limestone is introduced into surge bunker and enters back into dismembyator.
A kind of agstone preparation method the most according to claim 3, it is characterised in that: the stone that described dismembyator is ground
Limestone flour is sent in waterfall stream winnower A by bucket elevator A.
A kind of agstone preparation method the most according to claim 1, it is characterised in that: described more than 1000um granule
Dismembyator regrinding is sent back to through returning charge scrapper conveyor.
A kind of agstone preparation method the most according to claim 1, it is characterised in that: described cyclone separator separates
The agstone gone out passes sequentially through chain-linked conveyer A, bucket elevator B and sends in waterfall stream winnower B.
A kind of agstone preparation method the most according to claim 6, it is characterised in that: described cyclone separator, chain
Formula conveyer A and waterfall stream winnower B carries out dedusting by sack cleaner A.
A kind of agstone preparation method the most according to claim 1, it is characterised in that: described powder concentrator passes through cloth bag
Cleaner unit B carries out dedusting.
A kind of agstone preparation method the most according to claim 1, it is characterised in that: described powder concentrator passes through chain type
Conveyer C will be stored in finished product fine powder bin less than or equal to 45um granule.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610813991.4A CN106269169B (en) | 2016-09-09 | 2016-09-09 | A kind of agstone preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610813991.4A CN106269169B (en) | 2016-09-09 | 2016-09-09 | A kind of agstone preparation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106269169A true CN106269169A (en) | 2017-01-04 |
| CN106269169B CN106269169B (en) | 2019-04-02 |
Family
ID=57710489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610813991.4A Active CN106269169B (en) | 2016-09-09 | 2016-09-09 | A kind of agstone preparation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106269169B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106694109A (en) * | 2017-01-16 | 2017-05-24 | 中国电力工程顾问集团西南电力设计院有限公司 | Limestone dry grinding powder manufacturing process system |
| CN107051689A (en) * | 2017-01-16 | 2017-08-18 | 中国电力工程顾问集团西南电力设计院有限公司 | A kind of lime stone dry grinding prepares arrangement |
| CN107321485A (en) * | 2017-08-10 | 2017-11-07 | 青阳县永诚钙业有限责任公司 | A kind of method for separating of agstone |
| CN107522419A (en) * | 2017-08-15 | 2017-12-29 | 贵州涟江源建材有限公司 | A kind of agstone preparation facilities for concrete and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000237614A (en) * | 1998-12-24 | 2000-09-05 | Onoda Eng Kk | Crushing/classification method and device therefor |
| CN2801282Y (en) * | 2005-06-16 | 2006-08-02 | 王东民 | Production system of coarse whiting ultrafine powder |
| CN201026458Y (en) * | 2007-03-21 | 2008-02-27 | 湖南省电力粉煤灰开发有限公司 | Novel system for manufacturing limestone powder |
| CN203695175U (en) * | 2014-01-06 | 2014-07-09 | 东莞市五全机械有限公司 | Full-automatic grinding and classifying production line for ultra-fine calcium carbonate powder |
| CN105107597A (en) * | 2015-08-28 | 2015-12-02 | 长沙深湘通用机器有限公司 | Coarse grain sorting method based on gas sorting machine and column mill |
-
2016
- 2016-09-09 CN CN201610813991.4A patent/CN106269169B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000237614A (en) * | 1998-12-24 | 2000-09-05 | Onoda Eng Kk | Crushing/classification method and device therefor |
| CN2801282Y (en) * | 2005-06-16 | 2006-08-02 | 王东民 | Production system of coarse whiting ultrafine powder |
| CN201026458Y (en) * | 2007-03-21 | 2008-02-27 | 湖南省电力粉煤灰开发有限公司 | Novel system for manufacturing limestone powder |
| CN203695175U (en) * | 2014-01-06 | 2014-07-09 | 东莞市五全机械有限公司 | Full-automatic grinding and classifying production line for ultra-fine calcium carbonate powder |
| CN105107597A (en) * | 2015-08-28 | 2015-12-02 | 长沙深湘通用机器有限公司 | Coarse grain sorting method based on gas sorting machine and column mill |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106694109A (en) * | 2017-01-16 | 2017-05-24 | 中国电力工程顾问集团西南电力设计院有限公司 | Limestone dry grinding powder manufacturing process system |
| CN107051689A (en) * | 2017-01-16 | 2017-08-18 | 中国电力工程顾问集团西南电力设计院有限公司 | A kind of lime stone dry grinding prepares arrangement |
| CN106694109B (en) * | 2017-01-16 | 2019-09-06 | 中国电力工程顾问集团西南电力设计院有限公司 | A kind of lime stone dry grinding flouring technology system |
| CN107321485A (en) * | 2017-08-10 | 2017-11-07 | 青阳县永诚钙业有限责任公司 | A kind of method for separating of agstone |
| CN107522419A (en) * | 2017-08-15 | 2017-12-29 | 贵州涟江源建材有限公司 | A kind of agstone preparation facilities for concrete and preparation method thereof |
| CN107522419B (en) * | 2017-08-15 | 2019-08-20 | 贵州涟江源建材有限公司 | A kind of agstone preparation facilities and preparation method thereof for concrete |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106269169B (en) | 2019-04-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106269169A (en) | A kind of agstone preparation method | |
| CN103230826B (en) | Semi-finish grinding process and equipment | |
| CN204352972U (en) | A kind of roll squeezer-ball mill Joint grinding system configuring many composition dividing powder separating machines | |
| CN102728445A (en) | Method for fine grinding of iron ore by dry method | |
| CN103342482B (en) | External-circulation cement finish grinding system for vertical mill | |
| CN206746767U (en) | A kind of desulfurization agstone preparation system | |
| CN203355840U (en) | Production line for manufacturing sand through ball-milling | |
| CN114130553B (en) | Fly ash preparation system and preparation process | |
| CN102179273A (en) | Concrete grinding system for roll squeezer and grinding method thereof | |
| CN102909129A (en) | Multistage efficient magnetic separation process and device for magnetite | |
| CN206064589U (en) | A kind of agstone preparation system | |
| CN106179689B (en) | A kind of agstone preparation system | |
| CN103272711A (en) | Iron mine powder multi-level air classifying system and method | |
| CN105498927B (en) | A kind of half whole formula grinding system | |
| CN202655097U (en) | Iron mine dry method fine grinding system | |
| CN214320448U (en) | Cement raw material roller press final grinding system | |
| CN105413815A (en) | Production and preparation technology for first-grade coal ash | |
| CN108927275A (en) | Combined type cement grinding system and method suitable for high moisture content material | |
| CN205340996U (en) | Half whole formula grinding system | |
| JP5446936B2 (en) | Cement manufacturing apparatus and cement manufacturing method | |
| CN106423414B (en) | material grinding system | |
| CN107321485A (en) | A kind of method for separating of agstone | |
| CN208642932U (en) | Combined type cement grinding system suitable for high moisture material | |
| CN209597390U (en) | A kind of Roller Press Combined Grinding System | |
| CN209753077U (en) | Raw material external circulation final grinding process system for high-moisture raw materials |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |