CN214417279U - Flying dust washing device based on carbon dioxide tempering - Google Patents
Flying dust washing device based on carbon dioxide tempering Download PDFInfo
- Publication number
- CN214417279U CN214417279U CN202022471796.2U CN202022471796U CN214417279U CN 214417279 U CN214417279 U CN 214417279U CN 202022471796 U CN202022471796 U CN 202022471796U CN 214417279 U CN214417279 U CN 214417279U
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- Prior art keywords
- carbon dioxide
- tank body
- hollow
- stirring
- stirring tank
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- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims abstract description 116
- 239000001569 carbon dioxide Substances 0.000 title claims abstract description 58
- 229910002092 carbon dioxide Inorganic materials 0.000 title claims abstract description 58
- 238000005406 washing Methods 0.000 title claims abstract description 21
- 238000005496 tempering Methods 0.000 title claims abstract description 18
- 239000000428 dust Substances 0.000 title claims abstract description 8
- 238000003756 stirring Methods 0.000 claims abstract description 84
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 238000010791 quenching Methods 0.000 claims abstract description 7
- 230000000171 quenching effect Effects 0.000 claims abstract description 7
- 238000002347 injection Methods 0.000 claims abstract description 6
- 239000007924 injection Substances 0.000 claims abstract description 6
- 239000010881 fly ash Substances 0.000 claims description 27
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000009413 insulation Methods 0.000 claims description 3
- 230000001502 supplementing effect Effects 0.000 claims description 2
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 238000001704 evaporation Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 230000008020 evaporation Effects 0.000 abstract description 3
- 238000004090 dissolution Methods 0.000 abstract description 2
- 239000002002 slurry Substances 0.000 abstract description 2
- 239000007787 solid Substances 0.000 abstract description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 abstract 1
- 229910001385 heavy metal Inorganic materials 0.000 description 5
- 239000004568 cement Substances 0.000 description 4
- 239000000706 filtrate Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000002956 ash Substances 0.000 description 3
- 238000006298 dechlorination reaction Methods 0.000 description 3
- HGUFODBRKLSHSI-UHFFFAOYSA-N 2,3,7,8-tetrachloro-dibenzo-p-dioxin Chemical compound O1C2=CC(Cl)=C(Cl)C=C2OC2=C1C=C(Cl)C(Cl)=C2 HGUFODBRKLSHSI-UHFFFAOYSA-N 0.000 description 2
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 229910001424 calcium ion Inorganic materials 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 150000003841 chloride salts Chemical class 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000010813 municipal solid waste Substances 0.000 description 2
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 125000001309 chloro group Chemical class Cl* 0.000 description 1
- 238000011033 desalting Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000011038 discontinuous diafiltration by volume reduction Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 235000017550 sodium carbonate Nutrition 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
Abstract
The utility model discloses a flying dust washing device based on carbon dioxide quenching and tempering, be in including agitator tank body and setting the inside agitating unit of agitator tank body, agitating unit includes: the stirring device comprises a hollow stirring rod and hollow stirring blades, wherein the hollow stirring rod is a hollow shaft body, the bottom end of the hollow stirring rod is communicated with the hollow stirring blades, the number of the hollow stirring blades is multiple, the hollow stirring blades surround the bottom end of the hollow stirring rod and are uniformly arranged along the circumferential direction of the hollow stirring rod, air holes, a drain pipe and an injection pipe are formed in blades of the hollow stirring blades, and a carbon dioxide circulation pipeline is further arranged outside the stirring tank body. The flying ash washing device based on carbon dioxide tempering promotes the dissolution of chloride on the basis of the tempering effect of carbon dioxide on slurry under the condition of low liquid-solid ratio, and achieves the purposes of reducing subsequent evaporation water and saving energy consumption.
Description
Technical Field
The utility model relates to a solid waste handles the field, concretely relates to flying dust washing's device based on carbon dioxide quenching and tempering.
Background
The incineration technology can realize quick volume reduction and energy utilization of garbage, is widely applied at present, but fly ash generated in the garbage incineration process contains heavy metal, dioxin and the like, belongs to dangerous waste and poses serious threat to the environment. The direct safe landfill of the incineration fly ash is high in cost and difficult to bear.
At present, the temporary disposal method is low-cost sanitary landfill after solidification and stabilization treatment, but with the shortage of landfill sites and the doubt on the long-term stability of the solidified and stabilized fly ash, how to better dispose the fly ash becomes an urgent need at present. The fly ash is treated by the cooperation of the cement kiln, so that the incineration fly ash can be recycled, heavy metals can be solidified and dioxin can be decomposed, the fly ash consumption is high, and the application prospect is very good.
However, the incineration fly ash contains chloride salt, which easily reduces the quality of clinker and causes the problems of cement kiln crusting and the like, resulting in low mixing amount of the incineration fly ash and high content of chloride salt in the fly ash entering the kiln. Therefore, the fly ash desalting pretreatment is more friendly to the cooperative treatment of the cement kiln, the water washing is a simple fly ash dechlorination process, the fly ash dechlorination process is limited to be applied at present, and the main reason for limiting the popularization is that the energy consumption for evaporating and crystallizing the filtrate after the water washing to extract the salt is high, so that the fly ash dechlorination cost is high.
Therefore, a fly ash washing device based on carbon dioxide tempering is needed to be designed to ensure that the liquid-solid ratio is reduced and the water consumption is reduced in the washing process, so that the subsequent evaporation capacity of the filtrate is reduced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a flying dust washing device based on carbon dioxide quenching and tempering, it is through the quenching and tempering effect of carbon dioxide to the thick liquid, solves the follow-up evaporation water gauge height of current flying dust washing device, problem that the energy consumption is big.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides a flying dust washing unit based on carbon dioxide quenching and tempering, includes the agitator tank body and sets up the inside agitating unit of agitator tank body, agitating unit includes: hollow puddler and hollow stirring paddle, hollow puddler is the hollow axis body, its bottom with hollow stirring paddle is linked together, hollow stirring paddle's quantity is a plurality of, centers on hollow puddler's bottom along the circumference of hollow puddler evenly sets up, set up gas pocket, drain pipe and injection pipe on hollow stirring paddle's the blade, the outside of agitator tank body still is provided with carbon dioxide circulation pipeline, carbon dioxide circulation pipeline one end with the inner chamber intercommunication of agitator tank body, the other end with hollow puddler intercommunication, carbon dioxide has seted up carbon dioxide on the carbon dioxide circulation pipeline and has supplemented the mouth, still connect the carbon dioxide booster pump on the carbon dioxide circulation pipeline.
Preferably, the agitation tank body includes: the stirring tank comprises a stirring tank body and a stirring tank cover, wherein the stirring tank cover is arranged above the stirring tank body and is detachably connected with the stirring tank body through a flange.
Preferably, the stirring tank cover is provided with a fly ash inlet and a water inlet, and the bottom of the stirring tank body is provided with a discharge hole.
Preferably, a motor is further arranged above the stirring tank body, and a motor driving shaft is connected with the hollow stirring rod through a gear.
Preferably, the stirring tank cover is further provided with a heating resistor which is inserted into the stirring tank body, and the outer wall of the stirring tank body is further covered with a heat insulation layer.
Preferably, a support is fixedly connected to the lower portion of the stirring tank body.
The utility model has the advantages that:
according to the flying ash washing device based on carbon dioxide tempering, carbon dioxide is introduced into water to reduce the pH value of slurry, so that insoluble chlorine salt in the flying ash can be dissolved out, and simultaneously, carbonate, heavy metal and calcium ions are combined to generate precipitate, so that the dissolution of the heavy metal and calcium is avoided, and the pressure of subsequent filtrate treatment is reduced;
after the carbon dioxide promotes the precipitation of heavy metal ions and calcium ions, the use amount of Na2CO3 of subsequent washing filtrate is reduced, and the medicament cost of subsequent treatment is reduced;
carbon dioxide is introduced into the hollow stirring blade, and the flying ash in water is stirred by the aid of the injection and floating of carbon dioxide bubbles, so that the stirring energy consumption is reduced;
and the carbon dioxide overflowing from the bubbling water surface is collected, supplemented and pressurized and then re-injected into the blades, so that the carbon dioxide is saved, and the carbon dioxide can be derived from cement kiln flue gas purification products and has the effect of carbon dioxide emission reduction.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram showing the detailed structure of the hollow stirring rod and the hollow stirring blade;
in the figure: 1. the device comprises a motor, 2, gears, 3, a fly ash inlet, 4, a water inlet, 5, a heat insulation layer, 6, a hollow stirring rod, 7, a hollow stirring blade, 701, an air hole, 702, a water discharge pipe, 703, an injection pipe, 8, a support, 9, a carbon dioxide circulating pipeline, 10, a heating resistor, 11, a discharge hole, 12 and a carbon dioxide booster pump.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Unless defined otherwise, all references to up, down, left, right, front, back, inner and outer directions herein are to be interpreted as referring to up, down, left, right, front, back, inner and outer directions in the drawings to which the invention is applied, and all references are hereby incorporated herein by reference.
The utility model provides a fly ash washing unit based on carbon dioxide quenching and tempering as shown in figure 1, be in including agitator tank body and setting the inside agitating unit of agitator tank body, agitating unit includes: hollow puddler 6 and hollow puddler 7, hollow puddler 6 is the hollow axis body, its bottom with hollow puddler 7 is linked together, the quantity of hollow puddler 7 is a plurality of, centers on the bottom of hollow puddler 6 along the circumference of hollow puddler 6 evenly sets up, set up on hollow puddler 7's the blade has gas pocket 701, drain pipe 702 and injection pipe 703, the outside of agitator tank body still is provided with carbon dioxide circulation pipeline 9, carbon dioxide circulation pipeline 9 one end with the inner chamber intercommunication of agitator tank body, the other end with hollow puddler 6 intercommunication, carbon dioxide has been seted up on the carbon dioxide circulation pipeline 9 and has been supplyed the mouth, carbon dioxide booster pump 12 is still connected on the carbon dioxide circulation pipeline.
Specifically, the agitator tank body includes: the stirring tank comprises a stirring tank body and a stirring tank cover, wherein the stirring tank cover is arranged above the stirring tank body and is detachably connected with the stirring tank body through a flange.
Specifically, the stirring tank cover is provided with a fly ash inlet 3 and a water inlet 4, and the bottom of the stirring tank body is provided with a discharge hole 11.
Specifically, still be provided with motor 1 above the agitator tank body, motor 1 drive shaft through gear 2 with hollow puddler 6 connects.
Specifically, still be provided with heating resistor 10 on the agitator tank lid, insert and establish in the agitator tank is internal, still cover on the agitator tank body outer wall and be provided with heat preservation 5.
Specifically, a support 8 is fixedly connected to the lower portion of the stirring tank body.
Specifically, the fly ash is added into the stirring tank, water is added into the stirring tank, and carbon dioxide is introduced into the hollow stirring rod 6 through a carbon dioxide supplement port, enters the hollow stirring blade 7 and then bubbles out of the air hole 701; the hollow stirring rod 6 is made to rotate, the rotating direction is consistent with the arc-shaped protruding direction of the blades of the hollow stirring blade 7, liquid entering the blades of the hollow stirring blade 7 is discharged from the water discharging pipe 702 in the reaction, after the reaction, carbon dioxide which is not absorbed by water is pressurized by the carbon dioxide pressurizing pump 12 and then returns to the hollow stirring rod 6 again through the carbon dioxide circulating pipeline 9, meanwhile, the carbon dioxide which is absorbed by water can be supplemented by the carbon dioxide supplementing port for ensuring the content of the carbon dioxide, and after the stirring is carried out for 10-30min, the stirring and the blowing-in of the carbon dioxide are stopped, and fly ash and water are discharged.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.
Claims (6)
1. The utility model provides a flying dust washing unit based on carbon dioxide quenching and tempering, is in including agitator tank body and setting the inside agitating unit of agitator tank body, its characterized in that:
the stirring device includes: a hollow stirring rod and a hollow stirring blade;
the hollow stirring rod is a hollow shaft body, and the bottom end of the hollow stirring rod is communicated with the hollow stirring blade;
the number of the hollow stirring blades is multiple, the hollow stirring blades are uniformly arranged around the bottom end of the hollow stirring rod along the circumferential direction of the hollow stirring rod, and air holes, water drainage pipes and injection pipes are formed in the blades of the hollow stirring blades;
a carbon dioxide circulating pipeline is also arranged outside the stirring tank body;
one end of the carbon dioxide circulation pipeline is communicated with the inner cavity of the stirring tank body, and the other end of the carbon dioxide circulation pipeline is communicated with the hollow stirring rod; and a carbon dioxide supplementing port is formed in the carbon dioxide circulating pipeline, and the carbon dioxide circulating pipeline is also connected with a carbon dioxide booster pump.
2. The fly ash washing device based on carbon dioxide tempering according to claim 1, characterized in that: the agitator tank body includes: the stirring tank comprises a stirring tank body and a stirring tank cover, wherein the stirring tank cover is arranged above the stirring tank body and is detachably connected with the stirring tank body through a flange.
3. The fly ash washing device based on carbon dioxide tempering according to claim 2, characterized in that: the stirring tank cover is provided with a fly ash inlet and a water inlet, and the bottom of the stirring tank body is provided with a discharge hole.
4. The fly ash washing device based on carbon dioxide tempering according to claim 1, characterized in that: the stirring tank is characterized in that a motor is further arranged above the stirring tank body, and a motor driving shaft is connected with the hollow stirring rod through a gear.
5. The fly ash washing device based on carbon dioxide tempering according to claim 2, characterized in that: the stirring tank cover is further provided with a heating resistor which is inserted into the stirring tank body, and the outer wall of the stirring tank body is further covered with a heat insulation layer.
6. The fly ash washing device based on carbon dioxide tempering according to claim 2, characterized in that: and a support is fixedly connected below the stirring tank body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022471796.2U CN214417279U (en) | 2020-10-30 | 2020-10-30 | Flying dust washing device based on carbon dioxide tempering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022471796.2U CN214417279U (en) | 2020-10-30 | 2020-10-30 | Flying dust washing device based on carbon dioxide tempering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214417279U true CN214417279U (en) | 2021-10-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022471796.2U Active CN214417279U (en) | 2020-10-30 | 2020-10-30 | Flying dust washing device based on carbon dioxide tempering |
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| Country | Link |
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| CN (1) | CN214417279U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112275782A (en) * | 2020-10-30 | 2021-01-29 | 南京师范大学 | Fly ash washing device and method based on carbon dioxide tempering |
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2020
- 2020-10-30 CN CN202022471796.2U patent/CN214417279U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112275782A (en) * | 2020-10-30 | 2021-01-29 | 南京师范大学 | Fly ash washing device and method based on carbon dioxide tempering |
| CN112275782B (en) * | 2020-10-30 | 2023-12-05 | 南京师范大学 | Fly ash washing device and method based on carbon dioxide tempering |
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