CN109499349A - For reducing the desulfurization particle of CFB recirculating fluidized bed discharge - Google Patents
For reducing the desulfurization particle of CFB recirculating fluidized bed discharge Download PDFInfo
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- CN109499349A CN109499349A CN201811393768.4A CN201811393768A CN109499349A CN 109499349 A CN109499349 A CN 109499349A CN 201811393768 A CN201811393768 A CN 201811393768A CN 109499349 A CN109499349 A CN 109499349A
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- particle
- cfb
- fluidized bed
- recirculating fluidized
- reducing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/81—Solid phase processes
- B01D53/83—Solid phase processes with moving reactants
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/40—Alkaline earth metal or magnesium compounds
- B01D2251/404—Alkaline earth metal or magnesium compounds of calcium
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/60—Inorganic bases or salts
- B01D2251/606—Carbonates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
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- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
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Abstract
The present invention provides a kind of desulfurization particle for reducing the discharge of CFB recirculating fluidized bed, and mass percent shared by constituent and each ingredient is respectively as follows: hot melt particle: 45~62%, calcium carbonate powder: 30~45% and auxiliary agent: 6~12%；Production method are as follows: using hot melt particle as substrate, mixed carbonic acid calcium powder and auxiliary agent are made spherical acquisition by 3D printing, and are also evenly equipped with sluice way inside it.The present invention is realized by 3D printing method opens sluice way in more globular desulfurization particle, while improving the contact area of desulfurization particle and sulfur-containing smoke gas, also pass through the desulfuration efficiency and quality of Promethean material lift desulfurization particle, when applied to CFB recirculating fluidized bed, a possibility that discharge amount can be significantly reduced, greatly improve the further genralrlization of CFB recirculating fluidized bed.
Description
Technical field
The invention belongs to energy-conserving and emission-cutting technology fields, and in particular to a kind of for reducing the de- of CFB recirculating fluidized bed discharge
Sulfur granules.
Background technique
Recirculating fluidized bed (CFB) uses fluidized combustion, and primary structure includes combustion chamber and circulation melts down two large divisions, fortune
Row wind speed is high, enhances the heterogeneous inverse process such as burning and desulfurization, can well solve the bases such as calorifics, mechanics, materialogy
The engineering problems such as problem and expansion, abrasion, overtemperature, become the advanced technology of fire retardant solid fuel using energy source.But it is existing
The desulfuration efficiency of recirculating fluidized bed is not so difficult to meet all environmental demands, and slightly larger discharge amount becomes the resistance of its further genralrlization
Hinder.
Therefore, further energy-saving and emission-reduction can be carried out for existing recirculating fluidized bed by developing one kind in view of the above problems
Technology is those skilled in the art institute urgent need to solve the problem.
Summary of the invention
To solve the above problems, the invention discloses a kind of desulfurization particles for reducing the discharge of CFB recirculating fluidized bed.
In order to achieve the above object, the invention provides the following technical scheme:
A kind of desulfurization particle for reducing the discharge of CFB recirculating fluidized bed, quality percentage shared by constituent and each ingredient
Than being respectively as follows: hot melt particle: 45~62%, calcium carbonate powder: 30~45% and auxiliary agent: 6~12%；Production method are as follows: with heat
Fusibleness particle is substrate, mixed carbonic acid calcium powder and auxiliary agent, spherical acquisition is made by 3D printing, and also uniformly distributed inside it
There is sluice way.
Further, mass percent shared by the constituent of hot melt particle and each ingredient is respectively as follows: nylon: 70~
85%, alkyl silicate: 5~15% and metal powder: 5~15%.
Further, mass percent shared by the constituent of auxiliary agent and each ingredient is respectively as follows: particles stick agent: 15~
22%, emulsifier: 5~10%, initiator: 4~10% and solvent: 60~76%.
Further, nylon is PA12 nylon；Metal powder is titanium alloy T i64 powder.
Further, mass percent shared by the constituent of particles stick agent and each ingredient is respectively as follows: vinyl acetate-
Ethylene copolymerization emulsions: 13~27%, polyvinyl alcohol: 7~17%, preservative: 2~4%, defoaming agent: 2~4%, remaining is water.
Further, emulsifier be in sapn, toast and alkyl phenol polyoxyethylene ether any one or it is any several
Kind.
Further, initiator be in ammonium persulfate, potassium peroxydisulfate and sodium peroxydisulfate any one or it is any several
Kind.
Further, solvent is any one in butyl acetate, butanone and propylene glycol methyl ether acetate.
Further, sluice way is helical form sluice way, and quantity is 4~8, and not connected.
The present invention provides a kind of desulfurization particles for reducing the discharge of CFB recirculating fluidized bed, using hot melt particle as base
Spherical acquisition is made by 3D printing in bottom, mixed carbonic acid calcium powder and auxiliary agent, while inside is evenly equipped with sluice way；Pass through 3D
Method of printing, which is realized, opens sluice way in more globular desulfurization particle, improves the contact area of desulfurization particle and sulfur-containing smoke gas.
Drainage is opened in more globular desulfurization particle compared with prior art, the present invention realizing by 3D printing method
Road also passes through Promethean material lift desulfurization particle while improving the contact area of desulfurization particle and sulfur-containing smoke gas
Desulfuration efficiency and quality can significantly reduce discharge amount, it is ciculation fluidized to greatly improve CFB when being applied to CFB recirculating fluidized bed
A possibility that further genralrlization of bed.
Specific embodiment
Technical solution provided by the invention is described in detail below with reference to specific embodiment, it should be understood that following specific
Embodiment is only illustrative of the invention and is not intended to limit the scope of the invention.
Embodiment 1:
The present invention provides a kind of desulfurization particle for reducing the discharge of CFB recirculating fluidized bed, constituent and each ingredient
Shared mass percent is respectively as follows: hot melt particle: 45%, calcium carbonate powder: 45% and auxiliary agent: 10%；The group of hot melt particle
It is respectively as follows: nylon at mass percent shared by ingredient and each ingredient: 70%, alkyl silicate: 15% and metal powder: 15%,
Nylon is PA12 nylon；Metal powder is titanium alloy T i64 powder；Quality percentage shared by the constituent of auxiliary agent and each ingredient
Than being respectively as follows: particles stick agent: 15%, emulsifier: 10%, initiator: 4% and solvent: 71%；The constituent of particles stick agent
And mass percent shared by each ingredient is respectively as follows: vinyl acetate-ethylene copolymerization emulsions: 13%, polyvinyl alcohol: 7%, preservative:
2%, defoaming agent: 2%, remaining is water；Emulsifier is sapn；Initiator is ammonium persulfate；Solvent is butyl acetate.
Production method are as follows: using hot melt particle as substrate, ball is made by 3D printing in mixed carbonic acid calcium powder and auxiliary agent
Shape obtains, and sluice way is also evenly equipped with inside it, and sluice way is helical form sluice way, and quantity is 4, and not connected.
Embodiment 2:
The present invention provides a kind of desulfurization particle for reducing the discharge of CFB recirculating fluidized bed, constituent and each ingredient
Shared mass percent is respectively as follows: hot melt particle: 62%, calcium carbonate powder: 30% and auxiliary agent: 8%；The group of hot melt particle
It is respectively as follows: nylon at mass percent shared by ingredient and each ingredient: 85%, alkyl silicate: 5% and metal powder: 10%,
Nylon is PA12 nylon；Metal powder is titanium alloy T i64 powder；Quality percentage shared by the constituent of auxiliary agent and each ingredient
Than being respectively as follows: particles stick agent: 20%, emulsifier: 10%, initiator: 10% and solvent: 60%；The composition of particles stick agent at
Point and each ingredient shared by mass percent be respectively as follows: vinyl acetate-ethylene copolymerization emulsions: 27%, polyvinyl alcohol: 17%, anti-corrosion
Agent: 4%, defoaming agent: 4%, remaining is water；Emulsifier is toast；Initiator is potassium peroxydisulfate；Solvent is butanone.
Production method are as follows: using hot melt particle as substrate, ball is made by 3D printing in mixed carbonic acid calcium powder and auxiliary agent
Shape obtains, and sluice way is also evenly equipped with inside it, and sluice way is helical form sluice way, and quantity is 8, and not connected.
Embodiment 3:
The present invention provides a kind of desulfurization particle for reducing the discharge of CFB recirculating fluidized bed, constituent and each ingredient
Shared mass percent is respectively as follows: hot melt particle: 54%, calcium carbonate powder: 38% and auxiliary agent: 8%；The group of hot melt particle
It is respectively as follows: nylon at mass percent shared by ingredient and each ingredient: 77%, alkyl silicate: 12% and metal powder: 11%,
Nylon is PA12 nylon；Metal powder is titanium alloy T i64 powder；Quality percentage shared by the constituent of auxiliary agent and each ingredient
Than being respectively as follows: particles stick agent: 18%, emulsifier: 7%, initiator: 7% and solvent: 68%；The constituent of particles stick agent
And mass percent shared by each ingredient is respectively as follows: vinyl acetate-ethylene copolymerization emulsions: 20%, polyvinyl alcohol: 13%, preservative:
3%, defoaming agent: 3%, remaining is water；Emulsifier is alkyl phenol polyoxyethylene ether；Initiator is sodium peroxydisulfate；Solvent is propylene glycol
Methyl ether acetate.
Production method are as follows: using hot melt particle as substrate, ball is made by 3D printing in mixed carbonic acid calcium powder and auxiliary agent
Shape obtains, and sluice way is also evenly equipped with inside it, and sluice way is helical form sluice way, and quantity is 6, and not connected.
The component parameter according to provided by above 3 embodiments makes 3 groups of desulfurization particles respectively, and carries out desulfurization discharge and survey
Examination；After tested, sulfur-bearing rate is minimum in flue gas after desulfurization particle disposal in embodiment 3, and is lower than discharge standard 55%, secondly
For embodiment 1, it is lower than discharge standard 39%, is finally embodiment 2, is lower than discharge standard 35%.
To sum up, desulfurization particle provided by the present invention is significantly effective to the emission reduction formula of recirculating fluidized bed, and embodiment 3
For the most preferred embodiment in above 3 embodiments.
Finally, it should be noted that property technical side the above examples are only used to illustrate the technical scheme of the present invention and are not limiting
Case, those skilled in the art should understand that, modification or equivalent replacement of the technical solution of the present invention are made for those, and
The objective and range for not departing from the technical program, are intended to be within the scope of the claims of the invention.
Claims (9)
1. a kind of desulfurization particle for reducing the discharge of CFB recirculating fluidized bed, it is characterised in that: its constituent and each ingredient
Shared mass percent is respectively as follows: hot melt particle: 45~62%, calcium carbonate powder: 30~45% and auxiliary agent: 6~12%；System
Make method are as follows: using hot melt particle as substrate, spherical acquisition is made by 3D printing in mixed carbonic acid calcium powder and auxiliary agent, and
And sluice way is also evenly equipped with inside it.
2. a kind of desulfurization particle for reducing the discharge of CFB recirculating fluidized bed according to claim 1, it is characterised in that:
Mass percent shared by the constituent of the hot melt particle and each ingredient is respectively as follows: nylon: 70~85%, silicic acid alkyl
Ester: 5~15% and metal powder: 5~15%.
3. a kind of desulfurization particle for reducing the discharge of CFB recirculating fluidized bed according to claim 1, it is characterised in that:
Mass percent shared by the constituent of the auxiliary agent and each ingredient is respectively as follows: particles stick agent: 15~22%, emulsifier: 5
~10%, initiator: 4~10% and solvent: 60~76%.
4. a kind of desulfurization particle for reducing the discharge of CFB recirculating fluidized bed according to claim 2, it is characterised in that:
The nylon is PA12 nylon；The metal powder is titanium alloy T i64 powder.
5. a kind of desulfurization particle for reducing the discharge of CFB recirculating fluidized bed according to claim 3, it is characterised in that:
Mass percent shared by the constituent of the particles stick agent and each ingredient is respectively as follows: vinyl acetate-ethylene copolymerization emulsions:
13~27%, polyvinyl alcohol: 7~17%, preservative: 2~4%, defoaming agent: 2~4%, remaining is water.
6. a kind of desulfurization particle for reducing the discharge of CFB recirculating fluidized bed according to claim 3, it is characterised in that:
The emulsifier be in sapn, toast and alkyl phenol polyoxyethylene ether any one or it is any several.
7. a kind of desulfurization particle for reducing the discharge of CFB recirculating fluidized bed according to claim 3, it is characterised in that:
The initiator be in ammonium persulfate, potassium peroxydisulfate and sodium peroxydisulfate any one or it is any several.
8. a kind of desulfurization particle for reducing the discharge of CFB recirculating fluidized bed according to claim 3, it is characterised in that:
The solvent is any one in butyl acetate, butanone and propylene glycol methyl ether acetate.
9. a kind of desulfurization particle for reducing the discharge of CFB recirculating fluidized bed according to claim 1, it is characterised in that:
The sluice way is helical form sluice way, and quantity is 4~8, and not connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811393768.4A CN109499349A (en) | 2018-11-21 | 2018-11-21 | For reducing the desulfurization particle of CFB recirculating fluidized bed discharge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811393768.4A CN109499349A (en) | 2018-11-21 | 2018-11-21 | For reducing the desulfurization particle of CFB recirculating fluidized bed discharge |
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| Publication Number | Publication Date |
|---|---|
| CN109499349A true CN109499349A (en) | 2019-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811393768.4A Pending CN109499349A (en) | 2018-11-21 | 2018-11-21 | For reducing the desulfurization particle of CFB recirculating fluidized bed discharge |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2915235Y (en) * | 2006-06-18 | 2007-06-27 | 江苏一环环保设计研究院 | Highly efficient dry-method desulfurization unit |
| CN100572915C (en) * | 2004-06-23 | 2009-12-23 | 福斯特韦勒能源股份公司 | Reduce the method for CFBB sulfur dioxide (SO2) emissions |
| CN205517238U (en) * | 2016-04-29 | 2016-08-31 | 宁波众茂姚北热电有限公司 | A desulfurization system in stove for circulating fluidized bed |
| JP2017039072A (en) * | 2015-08-19 | 2017-02-23 | Ｊｆｅエンジニアリング株式会社 | Exhaust gas purification device and method, and feeding device of carbon dioxide-containing gas and heat to facility for crop production |
| CN108057437A (en) * | 2017-11-28 | 2018-05-22 | 辽宁科技大学 | Active ingredient passes through SCR catalyst of 3D printing straight forming and preparation method thereof |
-
2018
- 2018-11-21 CN CN201811393768.4A patent/CN109499349A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100572915C (en) * | 2004-06-23 | 2009-12-23 | 福斯特韦勒能源股份公司 | Reduce the method for CFBB sulfur dioxide (SO2) emissions |
| CN2915235Y (en) * | 2006-06-18 | 2007-06-27 | 江苏一环环保设计研究院 | Highly efficient dry-method desulfurization unit |
| JP2017039072A (en) * | 2015-08-19 | 2017-02-23 | Ｊｆｅエンジニアリング株式会社 | Exhaust gas purification device and method, and feeding device of carbon dioxide-containing gas and heat to facility for crop production |
| CN205517238U (en) * | 2016-04-29 | 2016-08-31 | 宁波众茂姚北热电有限公司 | A desulfurization system in stove for circulating fluidized bed |
| CN108057437A (en) * | 2017-11-28 | 2018-05-22 | 辽宁科技大学 | Active ingredient passes through SCR catalyst of 3D printing straight forming and preparation method thereof |
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Application publication date: 20190322 |
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