CN104845678A - Solid-liquid mixed fuel and preparation method thereof - Google Patents
Solid-liquid mixed fuel and preparation method thereof Download PDFInfo
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- CN104845678A CN104845678A CN201510260186.9A CN201510260186A CN104845678A CN 104845678 A CN104845678 A CN 104845678A CN 201510260186 A CN201510260186 A CN 201510260186A CN 104845678 A CN104845678 A CN 104845678A
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Abstract
The invention discloses solid-liquid mixed fuel, wherein the mass ratio of solid fuel to liquid fuel is 5:95 to 90:10, and the solid fuel in a powder form is uniformly dispersed in the liquid fuel. The solid-liquid mixed fuel is prepared in the following steps that the solid fuel and the liquid fuel are mixed and then are ground together, a mixture enters an intermediate tank with stirring when the particle size of the mixture is less than 100 micrometers, a test is performed to determine that the mixture satisfies the temperature of storage stability, the stirring is stopped at the temperature, and the mixture is led out to a product tank. The solid-liquid mixed fuel has the advantages that the solid fuel is smashed in the liquid phase fuel, so as to form the solid-liquid mixed fuel with a certain degree of dispersion; the solid content and the solid particle size distribution are controlled, and the spray atomization combustion conditions of the mixed fuel are satisfied, so that the combustion efficiency of the solid fuel is improved; superfine smashing is performed on the solid fuel, but dust pollution is not generated, no loss occurs, the overall benefit and controllability are increased, and long-term stable storage and transportation of the mixed fuel are realized.
Description
Technical field
The present invention relates to a kind of combustion fuel, with and preparation method thereof.
Background technology
Boiler, process furnace fuel used is generally divided into geseous fuel, liquid fuel and solid fuel.Liquid fuel comprises furnace fuel, bunker fuel, gas turbine fuel etc.; What solid fuel was conventional has coal and refinery coke.The burning of current oil fuel, liquid fuel generally adopts spray burning, and solid is generally crushed to more than 40 orders by solid fuel, and dry powder is sprayed into hearth combustion.Although solid fuel have passed through pulverizing to a certain degree before combustion, still there is the problem of not easily perfect combustion.
Summary of the invention
Goal of the invention: for the problems referred to above, the object of this invention is to provide that a kind of efficiency of combustion is high, the fuel of good stability, avoids the dust in solid fuel crushing process and loss simultaneously.
Technical scheme: a kind of Solid-liquid Mixed Fuel, comprises solid fuel, liquid fuel, and the mass ratio of described solid fuel and described liquid fuel is 5: 95 ~ 90: 10, and described solid fuel is dispersed in described liquid fuel with powdery; It is solid at normal temperatures that described solid fuel comprises the lake pitch, residual oil etc. that refinery coke, coal, rock asphalt, rock asphalt and softening temperature be greater than 150 DEG C, and can be suspended in oil with particulate state through pulverizing in liquid oils medium, and calorific value 5000 kilocalories/kilogram and above all solids fuel; Described liquid fuel comprises all liquid fuel for boiler and process furnace.
A kind of preparation method of above-mentioned Solid-liquid Mixed Fuel, solid fuel is mixed with liquid fuel, then grind together, the tundish that band stirs are entered again after mixture particle diameter is less than 100 microns, the temperature meeting stability in storage is determined through chemical examination, stop at such a temperature stirring, export to products pot, to obtain final product.
The charging of described solid fuel room temperature, the charging at 50 ~ 300 DEG C of temperature of described liquid fuel.
Grinding adopts colloidal mill, shears, ball mill.
Described solid fuel carries out simple crushing before combination.
Chemical examination adopts stability in storage determination condition of storage, adopts the test method of emulsified bitumen stability determination method, gets the toluene insolubles difference of the upper and lower as stability indicator, and the difference of 5 days is no more than 2% for storage safe temperature.
Beneficial effect: compared with prior art, advantage of the present invention is comminuted solids phase fuel in liquid phase fuel, form the Solid-liquid Mixed Fuel with certain degree of scatter, by controlling solid content and solid size-grade distribution, meeting the condition of propellant combination spray atomization burning, improving solid-fuelled efficiency of combustion, though solid fuel is through superfine grinding but do not produce dust pollution, do not have loss, improve overall benefit and can be handling, the long-term stability achieving propellant combination stores and transport.
Embodiment
Below in conjunction with specific embodiment, illustrate the present invention further, these embodiments should be understood only be not used in for illustration of the present invention and limit the scope of the invention, after having read the present invention, the amendment of those skilled in the art to the various equivalent form of value of the present invention has all fallen within the application's claims limited range.
Embodiment 1
A kind of Solid-liquid Mixed Fuel and preparation method thereof
Step one: solid fuel is refinery coke (density 0.945g/cm
3), feeding temperature is room temperature; Liquid fuel is No. 200 oil fuel (the kinematic viscosity 200mm of 100 DEG C
2/ s, density 0.985g/cm
3), feeding temperature is 50 DEG C; Solid fuel and liquid fuel in mass ratio 80: 20, injecting mixer in the lump.
Step 2: mixture is after mixing tank mixing, enter colloidal mill or shears or ball mill, circulation shear or grinding more than twice or twice, after mixture particle diameter is less than 100 microns, enter the tundish that band stirs, carry out chemically examining the temperature determining to meet stability in storage.
Propellant combination adopts stability in storage determination condition of storage, adopts the test method of emulsified bitumen stability determination method, gets the toluene insolubles difference of the upper and lower as stability indicator, and the difference of 5 days is no more than 2% for storage safe temperature.Analysis data is in table one.
Table one
| Storing temp (DEG C) | 50 | 60 | 70 | 80 | 90 | 100 |
| Stability in storage (%) | 0.4 | 0.8 | 1.3 | 1.8 | 2.2 | 2.9 |
Analysis data as can be seen from table one: when the storing temp of propellant combination is lower than 80 DEG C, the stability in storage index of 5 days all meets the demands, be that in the process reduced gradually due to temperature, the viscosity of propellant combination system can increase gradually, after viscosity increases, propellant combination system will be more stable.
Step 3: stop stirring, export to products pot from tundish, obtain Product mix fuel.Product is temperature condition according to the rules, does not namely store and transport higher than 80 DEG C.
Embodiment 2
A kind of Solid-liquid Mixed Fuel and preparation method thereof
Step one: solid fuel is refinery coke (density 0.945g/cm
3), feeding temperature is room temperature; Liquid fuel is No. 180 oil fuel (the kinematic viscosity 167mm of 50 DEG C
2/ s, density 0.965g/cm
3), feeding temperature is 50 DEG C; Solid fuel and liquid fuel in mass ratio 80: 20, injecting mixer in the lump.
Step 2: mixture is after mixing tank mixing, enter colloidal mill or shears or ball mill, circulation shear or grinding more than twice or twice, after mixture particle diameter is less than 100 microns, enter the tundish that band stirs, carry out chemically examining the temperature determining to meet stability in storage.。
Propellant combination adopts stability in storage determination condition of storage, adopts the test method of emulsified bitumen stability determination method, gets the toluene insolubles difference of the upper and lower as stability indicator, and the difference of 5 days is no more than 2% for storage safe temperature.Analysis data is in table two.
Table two
| Storing temp (DEG C) | 40 | 50 | 60 | 70 | 80 | 90 |
| Stability in storage (%) | 1.3 | 1.9 | 2.3 | 2.8 | 3.7 | 4.5 |
Analysis data as can be seen from table two: when the storing temp of propellant combination is lower than 50 DEG C, the stability in storage index of 5 days all meets the demands, be that in the process reduced gradually due to temperature, the viscosity of propellant combination system can increase gradually, after viscosity increases, propellant combination system will be more stable.
Step 3: stop stirring, export to products pot from tundish, obtain Product mix fuel.Product is temperature condition according to the rules, does not namely store and transport higher than 50 DEG C.
Analysis data as can be seen from table one, table two: the storage safe temperature of propellant combination is not fixing temperature, when solid-phase is constant, storage safe temperature is relevant with the viscosity of liquid phase, and the viscosity higher storage safe temperature of liquid phase is higher.
Embodiment 3
A kind of Solid-liquid Mixed Fuel and preparation method thereof
Step one: solid fuel is coal (density 1.3g/cm
3), feeding temperature is room temperature; Liquid fuel is No. 180 oil fuel (the kinematic viscosity 167mm of 50 DEG C
2/ s, density 0.965g/cm
3), feeding temperature is 50 DEG C; Solid fuel and liquid fuel in mass ratio 80: 20, injecting mixer in the lump.
Step 2: mixture is after mixing tank mixing, enter colloidal mill or shears or ball mill, circulation shear or grinding more than twice or twice, after mixture particle diameter is less than 100 microns, enter the tundish that band stirs, carry out chemically examining the temperature determining to meet stability in storage.
Propellant combination adopts stability in storage determination condition of storage, adopts the test method of emulsified bitumen stability determination method, gets the toluene insolubles difference of the upper and lower as stability indicator, and the difference of 5 days is no more than 2% for storage safe temperature.Analysis data is in table three.
Table three
| Storing temp (DEG C) | 30 | 40 | 50 | 60 | 70 | 80 |
| Stability in storage (%) | 1.4 | 1.8 | 2.2 | 2.9 | 4.1 | 4.7 |
Analysis data as can be seen from table three: when the storing temp of propellant combination is lower than 40 DEG C, the stability in storage index of 5 days all meets the demands, be that in the process reduced gradually due to temperature, the viscosity of propellant combination system can increase gradually, after viscosity increases, propellant combination system will be more stable.
Step 3: stop stirring, export to products pot from tundish, obtain Product mix fuel.Product is temperature condition according to the rules, does not namely store and transport higher than 40 DEG C.
Analysis data as can be seen from table two, table three: the storage safe temperature of propellant combination is not fixing temperature, when liquid phase is constant, storage safe temperature is relevant with the density of solid-phase, and the density higher storage safe temperature of solid-phase is lower.
Embodiment 4
A kind of Solid-liquid Mixed Fuel and preparation method thereof
Step one: solid fuel is coal (density 1.3g/cm
3), feeding temperature is room temperature; Liquid fuel is No. 180 oil fuel (the kinematic viscosity 167mm of 50 DEG C
2/ s, density 0.965g/cm
3), feeding temperature is respectively 60 DEG C, 70 DEG C, 80 DEG C, solid fuel and liquid fuel in mass ratio 80: 20, injecting mixer in the lump.
Step 2: mixture is after mixing tank mixing, enter colloidal mill or shears or ball mill, circulation shear or grinding more than twice or twice, after mixture particle diameter is less than 100 microns, enter the tundish that band stirs, carry out chemically examining the temperature determining to meet stability in storage.
Propellant combination adopts stability in storage determination condition of storage, adopts the test method of emulsified bitumen stability determination method, gets the toluene insolubles difference of the upper and lower as stability indicator, and the difference of 5 days is no more than 2% for storage safe temperature.Analysis data is in table four.
Table four
Analysis data as can be seen from table four: when the storing temp of propellant combination is lower than 50 DEG C, the stability in storage index of 5 days all meets the demands.
Step 3: stop stirring, export to products pot from tundish, obtain Product mix fuel.Product is temperature condition according to the rules, does not namely store and transport higher than 50 DEG C.
Analysis data as can be seen from table three, table four: the storage safe temperature of propellant combination is not fixing temperature, when liquid phase feeding temperature raises, the index of stability in storage diminishes, and illustrates that storage safe stability can be better.
Embodiment 5
A kind of Solid-liquid Mixed Fuel and preparation method thereof
Step one: solid fuel is refinery coke (density 0.945g/cm
3), feeding temperature is room temperature; Liquid fuel is No. 200 oil fuel (the kinematic viscosity 200mm of 100 DEG C
2/ s, density 0.985g/cm
3), feeding temperature is 50 DEG C; Solid fuel and liquid fuel respectively in mass ratio 70: 30,60: 40,50: 50,40: 60, injecting mixer in the lump.
Step 2: mixture is after mixing tank mixing, enter colloidal mill or shears or ball mill, circulation shear or grinding more than twice or twice, after mixture particle diameter is less than 100 microns, enter the tundish that band stirs, carry out chemically examining the temperature determining to meet stability in storage.
Propellant combination adopts stability in storage determination condition of storage, adopts the test method of emulsified bitumen stability determination method, gets the toluene insolubles difference of the upper and lower as stability indicator, and the difference of 5 days is no more than 2% for storage safe temperature.Analysis data is in table five.
Table five
Step 3: stop stirring, export to products pot from tundish, obtain Product mix fuel.Product is temperature condition according to the rules, and not higher than 60 DEG C or not higher than 70 DEG C of storages and transport.
Analysis data as can be seen from table five: when the charge proportion of propellant combination changes, storage safe temperature also changes, and in propellant combination system, solid fuel ratio is higher, and the viscosity of system is higher, stability in storage is less, and the storage safe temperature of propellant combination is higher.
Claims (6)
1. a Solid-liquid Mixed Fuel, is characterized in that: comprise solid fuel, liquid fuel, and the mass ratio of described solid fuel and described liquid fuel is 5: 95 ~ 90: 10, and described solid fuel is dispersed in described liquid fuel with powdery; It is solid at normal temperatures that described solid fuel comprises the lake pitch, residual oil etc. that refinery coke, coal, rock asphalt, rock asphalt and softening temperature be greater than 150 DEG C, and can be suspended in oil with particulate state through pulverizing in liquid oils medium, and calorific value 5000 kilocalories/kilogram and above all solids fuel; Described liquid fuel comprises all liquid fuel for boiler and process furnace.
2. the preparation method of the Solid-liquid Mixed Fuel described in a claim, it is characterized in that: solid fuel is mixed with liquid fuel, then grind together, the tundish that band stirs are entered again after mixture particle diameter is less than 100 microns, the temperature meeting stability in storage is determined through chemical examination, stop at such a temperature stirring, export to products pot, to obtain final product.
3. preparation method according to claim 2, is characterized in that: the charging of described solid fuel room temperature, the charging at 50 ~ 300 DEG C of temperature of described liquid fuel.
4. preparation method according to claim 2, is characterized in that: grinding adopts colloidal mill, shears, ball mill.
5. preparation method according to claim 2, is characterized in that: described solid fuel carries out simple crushing before combination.
6. preparation method according to claim 2, it is characterized in that: chemical examination adopts stability in storage determination condition of storage, adopt the test method of emulsified bitumen stability determination method, get the toluene insolubles difference of the upper and lower as stability indicator, the difference of 5 days is no more than 2% for storage safe temperature.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106675050A (en) * | 2016-12-08 | 2017-05-17 | 苏州艾博迈尔新材料有限公司 | Composite emulsified asphalt and preparation technology thereof |
| WO2019056802A1 (en) * | 2017-09-20 | 2019-03-28 | 深圳瑞科天启科技有限公司 | Method for increasing energy density of liquid fuel or gaseous fuel |
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| CN1786127A (en) * | 2004-12-10 | 2006-06-14 | 上海精微粉溶机械设备有限公司 | Ultra fine water oil coal mixture fuel slurry and its production method |
| CN101029261A (en) * | 2006-02-28 | 2007-09-05 | 朱复东 | Fuel-oil coking slurry |
| CN101182425A (en) * | 2006-11-14 | 2008-05-21 | 袁鹏 | Petroleum coke slurry, preparation method and uses thereof |
| CN101508916A (en) * | 2008-02-16 | 2009-08-19 | 袁鹏 | Novel process and equipment for producing refinery coke slurry |
| CN102382696A (en) * | 2011-09-21 | 2012-03-21 | 中国石油天然气股份有限公司 | Method for preparing aqueous asphalt slurry from high-softening-point petroleum asphalt grains |
-
2015
- 2015-05-20 CN CN201510260186.9A patent/CN104845678A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1786127A (en) * | 2004-12-10 | 2006-06-14 | 上海精微粉溶机械设备有限公司 | Ultra fine water oil coal mixture fuel slurry and its production method |
| CN101029261A (en) * | 2006-02-28 | 2007-09-05 | 朱复东 | Fuel-oil coking slurry |
| CN101182425A (en) * | 2006-11-14 | 2008-05-21 | 袁鹏 | Petroleum coke slurry, preparation method and uses thereof |
| CN101508916A (en) * | 2008-02-16 | 2009-08-19 | 袁鹏 | Novel process and equipment for producing refinery coke slurry |
| CN102382696A (en) * | 2011-09-21 | 2012-03-21 | 中国石油天然气股份有限公司 | Method for preparing aqueous asphalt slurry from high-softening-point petroleum asphalt grains |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106675050A (en) * | 2016-12-08 | 2017-05-17 | 苏州艾博迈尔新材料有限公司 | Composite emulsified asphalt and preparation technology thereof |
| WO2019056802A1 (en) * | 2017-09-20 | 2019-03-28 | 深圳瑞科天启科技有限公司 | Method for increasing energy density of liquid fuel or gaseous fuel |
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Application publication date: 20150819 |