CN206064589U - A kind of agstone preparation system - Google Patents

A kind of agstone preparation system Download PDF

Info

Publication number
CN206064589U
CN206064589U CN201621045951.1U CN201621045951U CN206064589U CN 206064589 U CN206064589 U CN 206064589U CN 201621045951 U CN201621045951 U CN 201621045951U CN 206064589 U CN206064589 U CN 206064589U
Authority
CN
China
Prior art keywords
waterfall stream
winnower
agstone
particle outlets
less
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.)
Withdrawn - After Issue
Application number
CN201621045951.1U
Other languages
Chinese (zh)
Inventor
党楠
毛永龙
许华
贺清辉
刘育林
王仕能
陈卫国
雷文军
张静
胡佳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Southwest Electric Power Design Institute Co Ltd of China Power Engineering Consulting Group
Original Assignee
Southwest Electric Power Design Institute Co Ltd of China Power Engineering Consulting Group
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 Southwest Electric Power Design Institute Co Ltd of China Power Engineering Consulting Group filed Critical Southwest Electric Power Design Institute Co Ltd of China Power Engineering Consulting Group
Priority to CN201621045951.1U priority Critical patent/CN206064589U/en
Application granted granted Critical
Publication of CN206064589U publication Critical patent/CN206064589U/en
Withdrawn - After Issue legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model discloses a kind of agstone preparation system, including column mill, waterfall stream winnower A, waterfall stream winnower B and powder concentrator, waterfall stream winnower A is connected with column mill and waterfall stream winnower B respectively, the entrance for connecting powder concentrator less than or equal to 300um particle outlets of waterfall stream winnower B, powder concentrator is connected with the entrance of column mill more than 45um particle outlets, it also includes the finished product coarse powder bin for depositing 300~1000um granules and the finished product fine powder bin of 45um granules is less than or equal to for storage, waterfall stream winnower B's is connected with finished product coarse powder bin more than 300um particle outlets, powder concentrator less than 45um particle outlets connect finished product fine powder bin.This utility model is through three sortings and circulates twice, meeting on the premise of CFBB agstone granularity enters stove requirement, be capable of achieving it is efficient sort step by step, better meet the inside and outside requirement to agstone of boiler.

Description

A kind of agstone preparation system
Technical field
This utility model is related to agstone preparation field, more particularly to a kind of agstone preparation system.
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, the stove particle diameter distribution that enters for usually requiring that meets following two requirements:One is less than 45um(Micron)Particle diameter Micropowder enter stove ratio no more than 10%, two are desirable to charging powder particle diameter less than 1 millimeter.However, current recirculating fluidized bed The furnace parameters that enter of boiler are difficult to meet requirements above, and the micropowder furnace entering volume of especially less than 45um is far overproof, and this is in stove Desulfurization brings adverse effect, and on the one hand this partial particulate is not utilized effectively, and reduces desulfuration efficiency, increased limestone Usage amount, on the other hand increased flying dust amount and bring more unnecessary operation energy consumptions to aid system.Therefore, boiler factory It is required that increase 300~1000um granules enter stove ratio.
Stove foreign cigarette air humidity method desulfurized limestone powder generally has two kinds of sources:1. slurry is directly milled into using ball wet milk; 2. it is contemplated that directly using column mill+pneumatic separation system sub-elect less than 45um micropowder slurrying.If can meet Micropowder demand, while and in the case of desulfuration in furnace agstone preparation amount can be met, it is better than first using the 2nd kind of scheme The scheme of kind.
Agstone is prepared in integral system inside and outside traditional CFB unit furnaces, will increase 300~1000um granules Enter stove ratio, it is contemplated that increase the gap that grinds of column mill, but if adjustment grinds gap and increases which, coarse powder yield increases Ultra-fine powder yield is necessarily caused to reduce afterwards, even more so that wet desulphurization demand can not be met.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, there is provided a kind of both to have met CFBB Granule enters stove requirement, and can increase agstone inside and outside the CFB unit furnaces of ultra-fine powder yield and prepare integral system.
The purpose of this utility model is achieved through the following technical solutions:A kind of agstone preparation system, it wraps Include set gradually column mill, with more than 1000um particle outlets with less than or equal to 1000um particle outlets waterfall stream selecting crude drugs with winnower Machine A, with more than 300um particle outlets and the waterfall stream winnower B less than or equal to 300um particle outlets and having more than 45um Particle outlet with less than or equal to 45um particle outlets powder concentrator, waterfall stream winnower A more than 1000um particle outlets and post Mill entrance connects, the entrance for connecting waterfall stream winnower B less than or equal to 1000um particle outlets of waterfall stream winnower A, waterfall stream Winnower B less than or equal to 300um particle outlets connect powder concentrator entrance, powder concentrator more than 45um particle outlets and post The entrance of grinding machine is connected, and it also includes the finished product coarse powder bin for depositing 300~1000um granules and is less than or waits for storage In the finished product fine powder bin of 45um granules, waterfall stream winnower B's is connected with finished product coarse powder bin more than 300um particle outlets, powder concentrator Less than 45um particle outlets connect finished product fine powder bin.
Preferably, this utility model also includes surge bunker, and during preparation, limestone first passes through surge bunker and enters back into column mill In.
Preferably, bucket elevator A is set between described column mill and waterfall stream winnower A.
Preferably, described waterfall stream winnower A's returns more than being provided between 1000um particle outlets and column mill entrance Material scrapper conveyor, described powder concentrator more than chain-linked conveyer B is provided between 45um particle outlets and the entrance of column mill.
Preferably, the entrance less than or equal to 1000um particle outlets and waterfall stream winnower B of described waterfall stream winnower A Between be provided with cyclone separator.
Preferably, described cyclone separator passes sequentially through entering for chain-linked conveyer A and bucket elevator B and waterfall stream winnower B Mouth is connected.
Preferably, this utility model also includes sack cleaner A, and sack cleaner A is defeated with cyclone separator, chain type respectively Send machine A and waterfall stream winnower B connections.
Preferably, this utility model also includes that sack cleaner B, sack cleaner B are connected with powder concentrator.
Preferably, chain-linked conveyer C is provided between described powder concentrator and finished product fine powder bin.
Agstone using method prepared by a kind of system as described above:Agstone in finished product coarse powder bin is sent into into stove Thorax participates in desulphurization during combustion or will carry out smoke-gas wet desulfurization after the agstone slurrying in finished product fine powder bin.
The beneficial effects of the utility model are:This utility model ensure that column mill grind gap increase after, 300 In the case that~1000um granules increase, 45um~300um grain sortings are out re-grind, is improved less than 45um The yield of micropowder.The system is through separating step by step(The granule less than or equal to 1000um is first isolated, then isolates 300um ~1000um granules, finally from less than or equal to the granule isolated in 300um granules less than or equal to 45um)Circulate twice (Circulating twice is respectively:1. ground waterfall stream winnower A detached more than 1000um granules again;2. powder concentrator is selected More than 45um and less than or equal to 300um granule be transported to column mill in carry out secondary grinding)So that limestone prepares system System has obtained great optimization at aspects such as control particle diameter, the efficiencies of separation.300um~1000um granules that the system is produced are sent into Burner hearth participates in desulfurization, while the outer smoke-gas wet desulfurization of stove after will be less than 45um granule slurrying, is carried out, therefore, what whole system was produced Useful granule increases, system more science.The system can be according in stove(Boiler desulfurization)Outside stove(Smoke-gas wet desulfurization)Desulfurization Demand adjusts the yield ratio of large or fine granule, rational in infrastructure, and this set system has been obtained for recognizing for associated specialist and manufacturer Can, and considerable economic benefit can be brought.This utility model is through three sortings and circulates twice, is meeting recirculating fluidized bed pot On the premise of hearthstone lime stone Powder Particle Size enters stove requirement, it is capable of achieving efficient to sort step by step;For desulfuration in furnace, 45um can be reduced Following granule share, increases 300 ~ 1000um granule shares;For external desulfurzation, can powder amount according to demand, realize to 45um with Lower and more than 300um particle fractions are adjusted, and better meet the inside and outside requirement to agstone of boiler.
Description of the drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of the concrete new embodiment of this practicality.
Specific embodiment
The technical solution of the utility model, but protection domain of the present utility model are described in further detail below in conjunction with the accompanying drawings It is not limited to described below.
As shown in Figure 1 and Figure 2, a kind of agstone preparation system, it includes the column mill for setting gradually, with being more than 1000um granules(Desulphurization reaction should not be participated in more than 1000um agstones granule, hereon referred to as unqualified powder)Export and be less than Or it is equal to 1000um granules(Qualified powder)The waterfall stream winnower A of outlet(Waterfall stream winnower A and sorting blower fan A cooperatings, also may be used It is engaged with other sorting blower fans), with more than 300um particle outlets be less than or equal to 300um granules(Middle powder)Outlet Waterfall stream winnower B(Waterfall stream winnower B and sorting blower fan B cooperatings, also can be engaged with other sorting blower fans)It is big with having In 45um granules(Fine powder during 45um~300um granules are referred to as)Export and be less than or equal to 45um granules(Micropowder)Outlet Powder concentrator, waterfall stream winnower A's are connected with column mill entrance more than 1000um particle outlets, waterfall stream winnower A less than or wait Connect the entrance of waterfall stream winnower B in 1000um particle outlets, waterfall stream winnower B's connects less than or equal to 300um particle outlets Connect the entrance of powder concentrator, powder concentrator is connected with the entrance of column mill more than 45um particle outlets, and it also includes for storage 300 The finished product coarse powder bin of~1000um granules and for storage less than or equal to 45um granules finished product fine powder bin, waterfall stream winnower B Be connected with finished product coarse powder bin more than 300um particle outlets, powder concentrator less than 45um particle outlets connect finished product fine powder bin.
Preferably, this utility model also includes surge bunker, and during preparation, limestone first passes through surge bunker and enters back into column mill In.
Preferably, bucket elevator A is set between described column mill and waterfall stream winnower A.
Preferably, described waterfall stream winnower A's returns more than being provided between 1000um particle outlets and column mill entrance Material scrapper conveyor, described powder concentrator more than chain-linked conveyer B is provided between 45um particle outlets and the entrance of column mill.
Preferably, the entrance less than or equal to 1000um particle outlets and waterfall stream winnower B of described waterfall stream winnower A Between be provided with cyclone separator.
Preferably, described cyclone separator passes sequentially through entering for chain-linked conveyer A and bucket elevator B and waterfall stream winnower B Mouth is connected.
Preferably, this utility model also includes sack cleaner A, and sack cleaner A is defeated with cyclone separator, chain type respectively Machine A and waterfall stream winnower B connections are sent, dedusting is carried out to cyclone separator, chain-linked conveyer A and waterfall stream winnower B.
Preferably, this utility model also includes that sack cleaner B, sack cleaner B are connected to enter powder concentrator with powder concentrator Row dedusting.
Preferably, chain-linked conveyer C is provided between described powder concentrator and finished product fine powder bin.
The system prepares the method for limestone and comprises the following steps:1)Post grinder is sent in the buffered storehouse of raw limestone, excellent Column mill, column mill is selected to be ground raw limestone;2)Agstone after grinding sends into waterfall stream selecting crude drugs with winnower by bucket elevator A Machine A carries out first time sorting, sub-elects more than 1000um granules and less than or equal to 1000um granules;3)Will be greater than 1000um Grain sends column mill regrinding back to, will send into less than or equal to 1000um granules and select in wind separator;4)By cyclone separator point What is separated out is transported in another waterfall stream winnower B through chain-linked conveyer A and bucket elevator B less than or equal to 1000um granules Carry out second sorting;5)300~1000um granules that waterfall stream winnower B is sub-elected are put in finished product coarse powder bin, will be less than Or equal to powder particles in 300um(Middle powder)Third time sorting is carried out in sending into powder concentrator;6)What powder concentrator was selected is less than or equal to 45um granules(Micropowder)Finished product fine powder bin is stored in by chain-linked conveyer C, by 45~300um granules(Middle fine powder)By chain type Conveyer B sends dismembyator back to and carries out regrinding.
Preferred embodiment of the present utility model is the foregoing is only, not to limit this utility model, should be referred to Go out, all any modification, equivalent and improvement made within spirit of the present utility model and principle etc. all should be included Within protection domain of the present utility model.

Claims (9)

1. a kind of agstone preparation system, it is characterised in that:Column mill that it includes setting gradually, with more than 1000um Grain outlet with less than or equal to 1000um particle outlets waterfall stream winnower A, with more than 300um particle outlets and be less than or wait In the waterfall stream winnower B of 300um particle outlets and with more than 45um particle outlets and less than or equal to 45um particle outlets Powder concentrator, waterfall stream winnower A's are connected with column mill entrance more than 1000um particle outlets, waterfall stream winnower A less than or wait Connect the entrance of waterfall stream winnower B in 1000um particle outlets, waterfall stream winnower B's connects less than or equal to 300um particle outlets Connect the entrance of powder concentrator, powder concentrator is connected with the entrance of column mill more than 45um particle outlets, and it also includes for storage 300 The finished product coarse powder bin of~1000um granules and for storage less than or equal to 45um granules finished product fine powder bin, waterfall stream winnower B Be connected with finished product coarse powder bin more than 300um particle outlets, powder concentrator less than 45um particle outlets connect finished product fine powder bin.
2. a kind of agstone preparation system according to claim 1, it is characterised in that:It also includes surge bunker, prepares When, limestone first passes through surge bunker and enters back in column mill.
3. a kind of agstone preparation system according to claim 1, it is characterised in that:Described column mill and waterfall stream wind Select setting bucket elevator A between machine A.
4. a kind of agstone preparation system according to claim 1 or 2 or 3, it is characterised in that:Described waterfall stream selecting crude drugs with winnower Machine A more than being provided with returning charge scrapper conveyor between 1000um particle outlets and column mill entrance, described powder concentrator is more than Chain-linked conveyer B is provided between 45um particle outlets and the entrance of column mill.
5. a kind of agstone preparation system according to claim 1, it is characterised in that:Described waterfall stream winnower A's Cyclone separator is provided between entrance less than or equal to 1000um particle outlets and waterfall stream winnower B.
6. a kind of agstone preparation system according to claim 5, it is characterised in that:Described cyclone separator is successively It is connected with the entrance of waterfall stream winnower B by chain-linked conveyer A and bucket elevator B.
7. a kind of agstone preparation system according to claim 6, it is characterised in that:It also includes sack cleaner A, Sack cleaner A is connected with cyclone separator, chain-linked conveyer A and waterfall stream winnower B respectively.
8. a kind of agstone preparation system according to claim 1, it is characterised in that:It also includes sack cleaner B, Sack cleaner B is connected with powder concentrator.
9. a kind of agstone preparation system according to claim 1, it is characterised in that:Described powder concentrator is thin with finished product Chain-linked conveyer C is provided between powder cabin.
CN201621045951.1U 2016-09-09 2016-09-09 A kind of agstone preparation system Withdrawn - After Issue CN206064589U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201621045951.1U CN206064589U (en) 2016-09-09 2016-09-09 A kind of agstone preparation system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201621045951.1U CN206064589U (en) 2016-09-09 2016-09-09 A kind of agstone preparation system

Publications (1)

Publication Number Publication Date
CN206064589U true CN206064589U (en) 2017-04-05

Family

ID=58437334

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201621045951.1U Withdrawn - After Issue CN206064589U (en) 2016-09-09 2016-09-09 A kind of agstone preparation system

Country Status (1)

Country Link
CN (1) CN206064589U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106179689A (en) * 2016-09-09 2016-12-07 中国电力工程顾问集团西南电力设计院有限公司 A kind of agstone preparation 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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106179689A (en) * 2016-09-09 2016-12-07 中国电力工程顾问集团西南电力设计院有限公司 A kind of agstone preparation 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

Similar Documents

Publication Publication Date Title
CN103537355B (en) System and method for preparing ultrafine pulverized coal
CN103230826B (en) Semi-finish grinding process and equipment
CN203355840U (en) Production line for manufacturing sand through ball-milling
CN103342482B (en) External-circulation cement finish grinding system for vertical mill
CN106269169B (en) A kind of agstone preparation method
CN102728445A (en) Method for fine grinding of iron ore by dry method
CN206064589U (en) A kind of agstone preparation system
CN102179285A (en) Single-compartment ball mill type cement vertical mill grinding device
CN103555935A (en) Pellet iron ore concentrate fine grinding pelletizing system and process
CN106179689B (en) A kind of agstone preparation system
CN204058266U (en) A kind of cement outer circulation Vertical Mill half final grinding system
CN203791025U (en) Pre-grinding system of roller press
CN105060325B (en) Raw material preparation technology and the system of alumina clinker is produced for dry sintering
CN206746767U (en) A kind of desulfurization agstone preparation system
CN103272711A (en) Iron mine powder multi-level air classifying system and method
CN202010573U (en) Single-cabin ball mill type cement vertical mill grinding device
CN104211312A (en) Cement outer-circulating semi-finish grinding system of vertical mill
CN204352972U (en) A kind of roll squeezer-ball mill Joint grinding system configuring many composition dividing powder separating machines
CN106423414B (en) material grinding system
CN204816701U (en) Novel material grinding system
CN204816700U (en) Material grinding system
CN203546120U (en) Conglomeration iron concentrate fine-grinding and pelletizing system
CN104874461A (en) Superfine powder production line and production process
CN203203053U (en) Size grading pulverized coal preparing system
CN203281437U (en) Multi-stage air classification system for powdered iron ore

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
AV01 Patent right actively abandoned

Granted publication date: 20170405

Effective date of abandoning: 20190430

AV01 Patent right actively abandoned