CN201801463U - Device for preparing lime slurry - Google Patents
Device for preparing lime slurry Download PDFInfo
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- CN201801463U CN201801463U CN2010202653847U CN201020265384U CN201801463U CN 201801463 U CN201801463 U CN 201801463U CN 2010202653847 U CN2010202653847 U CN 2010202653847U CN 201020265384 U CN201020265384 U CN 201020265384U CN 201801463 U CN201801463 U CN 201801463U
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- chamber
- lime
- slurry preparation
- digestion chamber
- digestion
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Abstract
The utility model discloses a device for preparing lime slurry, which comprises a primary digesting chamber (6) and a slurry preparing chamber (9) sequentially connected with each other, wherein a quick lime feeding device (3) and atomization nozzles (2) are arranged on the primary digesting chamber (6); and an exhaust pipe (10) is arranged on the slurry preparing chamber (9). The device for preparing the lime slurry is characterized in that a fluidization air pipe (5) is arranged on the bottom surface of the primary digesting chamber (6). By adopting the device provided by the utility model, slaked lime is separated, the time for digesting the unslaked lime is fully prolonged, and the digesting effect is ensured.
Description
Technical field
The utility model belongs to the technical field of a kind of lime slurry preparation, particularly a kind ofly prepares the device that lime slurry is used for semi-dry process flue gas desulphurization.
Background technology
SO
2Be one of industrial topmost pollutents such as the energy, metallurgy, chemical industry, adopt semi-dry desulphurization have water consumption few, to characteristics such as the flue gas adaptive faculty are strong.When utilizing semi-dry process flue gas desulphurization, need the preparation lime slurry, the activity of lime has material impact to the desulfuration efficiency of desulphurization system in the lime slurry.If lime slurry is active relatively poor, can cause desulfuration efficiency to descend, the lime consumption amount increases.
The quality of unslaked lime is the important factor that influences lime slurry.In the engineering project that has, can not guarantee the quality of unslaked lime for various reasons, the unslaked lime activity is relatively poor, the foreign matter content height, the slurry activity that utilizes existing digestion and slurry preparation device to obtain can not satisfy the requirement of high-efficiency desulfurization.
Summary of the invention
The purpose of this utility model is to design a kind of lime slurry preparation facilities for preparing the active lime slurries, and this device can adapt to second-rate unslaked lime.
The purpose of this utility model is achieved through the following technical solutions:
A kind of lime white slurry preparation device, described equipment comprise a digestion chamber with unslaked lime feeding unit and atomizing nozzle that links to each other successively and the slurry preparation chamber with vapor pipe, and it is characterized in that: the bottom surface of a described digestion chamber is provided with the fluidisation airduct.
As further optimization, in order to improve the reactive behavior of slaked lime, described rear portion, a digestion chamber or front portion also are connected with the secondary digestion chamber, and the inside of described secondary digestion chamber is provided with the vapor-nozzle that connects by steam-pipe.
As further optimization, consider fluidising air velocity to the rolling action of recycle stock particulate, still may bring the indigested lime of part into the secondary digestion chamber, be provided with recirculation conduit between a described digestion chamber and the secondary digestion chamber.
As further optimization, in order to make the homogeneity that makes slurries, the indoor agitator that is provided with of described slurry preparation.
As further optimization, for convenience of deslagging, bottom, a described digestion chamber is provided with slag-drip opening one time, and bottom, described slurry preparation chamber is provided with the secondary slag-drip opening.
All dispose star-like valve on a described slag-drip opening and the secondary slag-drip opening, can intermittently discharge impurity by the unlatching of controlling star-like valve.
A described digestion chamber is a fluidized-bed structure.
Unslaked lime is flowing in a digestion chamber under the fluidisation wind action.Quicklime particles mobile in digestion chamber comprise upwards flow and internal recycle flows.Plurality of rows atomized water nozzle is set in the digestion chamber, and once digestion takes place in unslaked lime and water reaction, in the time of digestion, and bigger quicklime particles heating, expansion, fragmentation.Postdigestive lime particulate is sent from a digestion chamber; Do not finish the unslaked lime of digestion because particle is bigger, in a digestion chamber, carry out internal recycle and flow, flow out again after digestion requires up to reaching; The impurity such as stone that can not digest fall into bottom, a digestion chamber, regularly discharge by a slag-drip opening.The digestion time of so abundant prolongation unslaked lime has guaranteed the effect that digests.
After entering the secondary digestion chamber, spray into steam by vapor-nozzle, further improve digestion effect to unslaked lime, through after the two-stage digestion, slaked lime is admitted to the slurry preparation chamber, and slurry preparation is indoor to add entry, under the effect of agitator, generate the uniform lime slurry of quality, qualified lime slurry is discharged from the lime slurry mouth, and partial impurities sinks to bottom, slurry preparation chamber, regularly discharges by the secondary slag-drip opening.The slurry preparation chamber is provided with vapor pipe, and the gas of lime slaking, conveying is exported from vapor pipe.
The beneficial effects of the utility model are:
(1) passes through the unslaked lime fluidisation can be contacted with water equably in a digestion chamber of this device;
(2) this device digestion chamber has certain separating power by to fluidizing control to slaked lime, prolongs the digestion time of unslaked lime, guarantees to digest effect;
(3) because the fluidisation airduct is arranged at the bottom of a digestion chamber, the wind that blows out like this is more prone to particle is taken up, better effects if.
When (4) adopting this device, at the indoor adding high-temperature steam of secondary digestion, high-temperature steam can improve the activity of digestion lime;
(5) this device is provided with the two-stage slag-drip opening, can isolate the lime particle and the impurity that can not digest in time.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
Among the figure, part 1 is a water pipe; Part 2 is an atomizing nozzle; Part 3 is the unslaked lime feeding unit; Part 4 is a slag-drip opening; Part 5 is the fluidisation airduct; Part 6 is a digestion chamber; Part 7 is the secondary slag-drip opening; Part 8 is the slurries outlet; Part 9 is the slurry preparation chamber; Part 10 is a vapor pipe; Part 11 is an agitator; Part 12 is a water inlet pipe; Part 13 is the secondary digestion chamber; Part 14 is a vapor-nozzle; Part 15 is a steam-pipe; 16 is recirculation conduit.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described:
This device mainly is made up of digestion chamber 6, secondary digestion chamber 13 and slurry preparation chamber 9 three parts.
A digestion chamber 6 is a fluidized-bed reactor, and unslaked lime joins the bottom of a digestion chamber 6 by unslaked lime feeding unit 3.The bottom surface of a digestion chamber 6 is provided with slag-drip opening 4 and fluidisation airduct 5 interfaces respectively.Unslaked lime is flowing in a digestion chamber under the fluidisation wind action.In the digestion chamber plurality of rows atomizing nozzle 2 is set, atomizing nozzle 2 is connected with water pipe 1.Unslaked lime and water reaction once digest, and postdigestive lime particulate is sent from a digestion chamber; The impurity such as stone that can not digest fall into 6 bottoms, a digestion chamber, discharge by a slag-drip opening 4 that is positioned at bottom or bottom sides.
High-temperature steam nozzle 14 is set in the secondary digestion chamber 13, and vapor-nozzle 14 is connected with steam-pipe 15.
Between digestion chamber and secondary digestion chamber, particle recirculation conduit 16 is set.
After two-stage digestion, slaked lime enters slurry preparation chamber 9, slurry preparation is indoor to add entry by water inlet pipe 12, under the effect of agitator 11, generate the uniform lime slurry of quality, qualified lime slurry is discharged from lime slurry outlet 8, partial impurities sinks to 9 bottoms, slurry preparation chamber, discharges by secondary slag-drip opening 7.Slurry preparation chamber 9 is provided with vapor pipe 10, and the gas in lime slaking and the course of conveying is discharged from vapor pipe 10.
In order further to improve the activity of lime slurry, in the water inlet of slurry preparation chamber, can add certain density activator.Activator main component sodium phosphate, activator and water is wiring solution-forming in advance, adds by water inlet pipe 12.
On slag-drip opening 4 and the secondary slag-drip opening 7 star-like valve is set all.
In order further to improve the activity of lime slurry, can add certain density activator in the water inlet of its slurry preparation chamber.The activator main component is formic acid, sodium formiate, acetate, sodium acetate, boric acid, Sodium Tetraborate, phosphoric acid, sodium phosphate, phenylformic acid, Sodium Benzoate etc.
Certainly as a kind of distortion, secondary digestion chamber 13 can be arranged at the front portion of a digestion chamber 6, digestion chamber 6 also can only be set one time, and omission secondary digestion chamber 13, perhaps digestion chamber 6 and secondary digestion chamber 13 are united two into one, realizing both functions in an integral body, so all is feasible.
The utility model prolongs the not residence time of assimilation of quicklime using by fluidized-bed reactor, guarantees the digestion quality; The method that adds high-temperature steam and promoting agent is beneficial to further enhanced activity.This device also is suitable for the preparation of other slurries class materials; utilize the various slurry preparation devices of principle design of the present utility model, comprise three tier structure be equipped with device according to the array mode of different order or utilize wherein one-level or the slurry preparation device of two-stage reactor design all belong to protection domain of the present utility model.
Claims (7)
1. lime white slurry preparation device, described equipment comprises the digestion chamber (6) with unslaked lime feeding unit (3) and atomizing nozzle (2) that links to each other successively and has the slurry preparation chamber (9) of vapor pipe (10) that it is characterized in that: the bottom surface of a described digestion chamber (6) is provided with fluidisation airduct (5).
2. lime white slurry preparation device as claimed in claim 1, it is characterized in that: described (6) rear portion, a digestion chamber or front portion also are connected with secondary digestion chamber (13), and the inside of described secondary digestion chamber (13) is provided with the vapor-nozzle (14) that connects by steam-pipe (15).
3. lime white slurry preparation device as claimed in claim 2 is characterized in that: be provided with recirculation conduit (16) between a described digestion chamber (6) and secondary digestion chamber (13).
4. lime white slurry preparation device as claimed in claim 3 is characterized in that: be provided with agitator (11) in the described slurry preparation chamber (9).
5. lime white slurry preparation device as claimed in claim 4 is characterized in that: bottom, a described digestion chamber (6) is provided with a slag-drip opening (4), and bottom, described slurry preparation chamber (9) is provided with secondary slag-drip opening (7).
6. lime white slurry preparation device as claimed in claim 5 is characterized in that: all dispose star-like valve on a described slag-drip opening (4) and the secondary slag-drip opening (7).
7. as the arbitrary described lime white slurry preparation device of claim 1 to 6, it is characterized in that: a described digestion chamber (6) is fluidized-bed structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202653847U CN201801463U (en) | 2010-07-20 | 2010-07-20 | Device for preparing lime slurry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202653847U CN201801463U (en) | 2010-07-20 | 2010-07-20 | Device for preparing lime slurry |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201801463U true CN201801463U (en) | 2011-04-20 |
Family
ID=43870978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202653847U Expired - Fee Related CN201801463U (en) | 2010-07-20 | 2010-07-20 | Device for preparing lime slurry |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201801463U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104119002A (en) * | 2014-07-04 | 2014-10-29 | 光大环保技术装备（常州）有限公司 | Preparation method and preparation device for lime slurry |
| CN104379238A (en) * | 2012-05-18 | 2015-02-25 | 联合采矿企业董事会 | Absorption of toxic so2 and co2 compounds in emitted gasses in boron and calcium based process waste solutions and convertion of the same into commercial products |
-
2010
- 2010-07-20 CN CN2010202653847U patent/CN201801463U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104379238A (en) * | 2012-05-18 | 2015-02-25 | 联合采矿企业董事会 | Absorption of toxic so2 and co2 compounds in emitted gasses in boron and calcium based process waste solutions and convertion of the same into commercial products |
| CN104119002A (en) * | 2014-07-04 | 2014-10-29 | 光大环保技术装备（常州）有限公司 | Preparation method and preparation device for lime slurry |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110420 Termination date: 20190720 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |