CN206064589U - A kind of agstone preparation system - Google Patents
A kind of agstone preparation system Download PDFInfo
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- 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
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- winnower
- waterfall stream
- particle outlets
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- entrance
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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
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.
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)
| 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 |
-
2016
- 2016-09-09 CN CN201621045951.1U patent/CN206064589U/en not_active Withdrawn - After Issue
Cited By (2)
| 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 |
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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 |