CN1081503A - Emulsification coal and burning ejecting device - Google Patents
Emulsification coal and burning ejecting device Download PDFInfo
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- CN1081503A CN1081503A CN92105853A CN92105853A CN1081503A CN 1081503 A CN1081503 A CN 1081503A CN 92105853 A CN92105853 A CN 92105853A CN 92105853 A CN92105853 A CN 92105853A CN 1081503 A CN1081503 A CN 1081503A
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- coal
- emulsification
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- burning
- emulsification coal
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- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Abstract
The invention discloses a kind of emulsification coal and burning ejecting device, the emulsification coal is to be dispersion emulsifier with the vegetable oil residue derivative, makes coal, aqueous dispersion emulsification, and the coal amount that contains of emulsification coal reaches 55～75%.The burner tip of emulsification coal fuel adopts two air-flows, liquefied petroleum gas for preheating, and the emulsification coal adds compression air-atomizing atomizing.The nozzle of single injector formula shower nozzle is close to the interior airduct and the outer airduct of emulsification coal nozzle at the positive center of shower nozzle; The nozzle of multiinjector formula shower nozzle is interior airduct at the positive center of shower nozzle, and emulsification coal nozzle is near interior airduct, and the nozzle outside is outer airduct.Make combustion rate reach 95～98%, the thermal efficiency reaches 85～90%.
Description
The invention belongs to a kind of burning ejecting device that is used for emulsification coal fuel, more particularly, the fuel that relates to the emulsification coal is transported in the burning ejecting device by pipeline and burns.
Prepare at present the method that the emulsification coal adopts machinery, coal is processed into fine breeze about 200 orders, and make with extra care the content that improves coal, slough impurity, sulphur and ashes, make fine coal powder, adopt fat coal, low ash bituminous coal to manufacture the emulsification coal, subject matter is: 1. the viscosity height of emulsification coal is unfavorable for that pipeline carries; 2. the shelf stability of emulsification coal is poor.Dispersion emulsifier adopts sulfonate, organic sulfonated products and various copolymer and condensation polymer, but these want Special Equipment, the cost height.On emulsification coal combustion equipment, the emphasis of countries in the world test at present is to make the various performances of emulsification coal adapt to the normal use of existing fuel oil, gas boiler, but exists heat supply not enough and the thermal efficiency is low.Another kind is that oil burning boiler changes burning emulsification coal fuel, and because of being subjected to the influence of nozzle, the problem of existence is: flame holding is poor, and a little less than the load adjustability, combustion rate is low, and heat flux distribution changes in the stove.Now oil burning boiler being changed burning emulsification coal performance is listed as follows:
As seen from table, oil burning boiler changes burning emulsification coal, and boiler capacity descends 20～30%, and efficiency of combustion descends 4～8%.
U.S. Pat-4,435,306, US-4,282,006, US-4,104,035 and Japan Patent JP-8418791, JP-83215490 and China patent CN-85108828, CN-85101446, CN-86106954, CN-87102923, CN-88106337, from the above-mentioned patent documentation of finding, the dispersion emulsifier that uses in the emulsification coal has the soap class, polyoxyethylene deriv, the formaldehyde addition polymers, poly-ethyleneimine, lignosulfonates, the inclined to one side fat of polyacid, aliphatic dicyclopentadiene sulfonate etc., but these emulsifying agents, additive costs an arm and a leg a bit, and some source is limited, is difficult to suitability for industrialized production.
Purpose of the present invention provides a kind of emulsification coal and burning ejecting device, has solved emulsification burning of coal rate, the thermal efficiency, has guaranteed burner hearth and the preheating of emulsification coal and igniting enforcement.
The objective of the invention is to realize by following method and apparatus.
A kind of method of emulsification coal preparation, it comprises the following steps:
1. with vegetable oil residue derivative 0.1～10%, dispersion emulsifier is the vegetable oil residue derivative:
A. its general formula of vegetable oil residue sulfonated bodies is
; B. the general formula of vegetable oil residue saponification thing is
; C. the general formula of vegetable oil residue acylate is
This three vegetable oil pin derivative can use separately, mixes and uses or be used with other emulsifying agent.
2. water temperature is 25～85 ℃, and the water yield 25～45% is mixed with the vegetable oil residue aqueous solution.
3. 200 purpose coal dusts 55～75% are progressively joined in the vegetable oil residue aqueous solution, the limit edged stirs, and mixing speed is 65～300rpm, and stirs.
The burning ejecting device of realizing above-mentioned emulsification coal fuel comprises:
Ejecting device adopts two air-flows, and the emulsification coal adds compression air-atomizing burning.Liquefied petroleum gas is adopted in igniting, and igniting is convenient on the one hand, can make emulsification coal and burner hearth preheating on the other hand.The emulsification coal adds compressed air before entering ejecting device, compressed air fully mixes with the emulsification coal, can directly atomize after the nozzle ejection; Shower nozzle adopts external shunt in two air-flows, and air is distributed equably, improves the atomizing effect of emulsification coal on the one hand; Guarantee that on the other hand air contacts with the emulsification coal, improve the combustion rate and the thermal efficiency.The burning shower nozzle divides single nozzle and many nozzles formula ejecting device: the nozzle of single nozzle formula shower nozzle is at the positive center of shower nozzle, interior airduct near central tube is terraced taper, central tube and interior airduct, interior airduct adopts uniform porous ring support to fix with outer airduct, be beneficial to evenly ejection in stove, improve the atomizing effect of emulsification coal effectively, improved flame distribution simultaneously; The nozzle of many nozzles formula shower nozzle is interior airduct at the positive center of shower nozzle, emulsification coal nozzle is the ladder taper shape near the emulsification coal pipe of central tube, in terraced circular cone top planar central one inside cambered surface hole and central tube clamping connection arranged, emulsification coal pipe and central tube, outer airduct adopt between each uniform porous ring support to fix.Single nozzle and many nozzle units can both improve the combustion rate and the thermal efficiency, guarantee the energy supply and the emulsification burning of coal of boiler.
Advantage of the present invention is: 1. the vegetable oil residue source is wide, and twice laid is beneficial to the protection environment; 2. to prepare its derivative scope wide for vegetable oil residue, and method is simple; 3. the vegetable oil residue derivative prepares low, the good stability of emulsification coal viscosity; 4. the burning ejecting device is simple in structure, is easy to make, and is easy to use, safe and reliable; 5. combustion rate reaches 95～98%, and the thermal efficiency reaches 85～90%; 5. price is low, has remarkable economical and social benefit.
Embodiment:
When being heated to 25～85 ℃, the water of 39.5g adds 0.5g vegetable oil residue derivative, be mixed with the aqueous solution, then selected 200 order coal dust 60g are progressively joined in the aqueous solution of vegetable oil residue derivative, the limit edged stirs, mixing speed is 65～300rpm, all add and stir up to coal dust, can obtain the emulsification coal of good stability.Same method can make not the emulsification coal of example herewith, and embodiment is listed as follows:
Fig. 1 is emulsification coal and burning ejecting device structural representation
Fig. 2 is emulsification coal and burning ejecting device list nozzle structural representation
Fig. 3 is emulsification coal and many nozzles of burning ejecting device structural representation
As shown in Figure 1, the emulsification coal is delivered to pans (1), pans (1) connect delivery pump (3) with pipeline, electrical heating preheater (4), impurity in filter (5) the filtering emulsification coal prevents to block nozzle, the flow of flowmeter (8) control emulsification coal also reaches the conveying capacity of regulating the emulsification coal, backflow when check-valves (9) prevents the emulsification coal and adds compressed air, to guarantee that emulsification coal and compressed air are mixed into shower nozzle, through static mixer (11), and at the last compressed air hose (7) that connects of static mixer (11), compressed air is mixed automatically with the pressure of emulsification coal by self, improve the atomizing effect of emulsification coal, be connected with burner tip (15) then, locate to install a liquefied petroleum tracheae (16) at burner tip (15), make the igniting of emulsification coal, the preheating burner hearth, atomizing, burning, and on burner tip (15), connect a blower fan (6) with pipeline, blower fan (6) provides the emulsification coal combustion required air to shower nozzle, regulate the air capacity that enters shower nozzle through volume damper (12), connect airduct (13) at volume damper (12), airduct (14) outside in interior airduct (13), connecting one, interior airduct (13) and outer airduct (14) are connected on the burner tip, make burner tip air air intake even, reach the optimum efficiency of emulsification coal combustion.The branch two-way is installed outside burner tip (15): the one tunnel makes the normal preceding emulsification coal of start turn back to pans after electrical heating preheater place is heated with emulsification coal circulation pipe connection pans (1) plays pre-heat effect; Another road is connected in the middle of filter (5) and the flowmeter (8) with emulsification coal circulation pipe, is used for regulating the quantity combusted that the emulsification coal is sent into shower nozzle, and burner tip (15) is fixed in the burner hearth (17).
According to Fig. 2 Fig. 3 as can be known, single nozzle is connected with many nozzles formula shower nozzle, outermost one deck liquefied petroleum tracheae (5) is terraced taper, the conical liquefied petroleum gas air inlet pipe (6) that one 90 ° of right angles are arranged at the maximum position of terraced taper, at the circular cone top margin equally distributed fuel gas hole (7) is arranged, liquefied petroleum tracheae (5) is igniting liquefied petroleum gas passage pipe fitting.Outer airduct (4) and liquefied petroleum tracheae (5) are on vertex of a cone plane, liquefied petroleum tracheae (5) overcoat is fixed on the outer airduct (4), do not influence burning when being beneficial to cold and hot distortion, liquefied petroleum tracheae (5) the maximum position of ladder awl with outside airduct (4) with being threaded.Single nozzle with different connection of many nozzles formula shower nozzle institute is: single nozzle formula shower nozzle is made of four layers of concentric circles, center emulsification coal pipe (2) is dolioform and adds the compression air duct for the emulsification coal, there is a nozzle that is threaded (1) tapered in the exit, be easy to change, be between terraced taper and the center emulsification coal pipe (2) near the interior airduct (3) of center emulsification coal pipe (2) and be the passage of interior wind, adopt equally distributed porous ring support to fix between center emulsification coal pipe (2) and the interior airduct (3), the space that the outer outer airduct (4) of interior airduct (3) is between conical and the interior airduct (3) is the passage of exogenous wind, adopts equally distributed porous ring support to fix between interior airduct (3) and the outer airduct (4); Many nozzles formula shower nozzle is made of four layers of concentric circles, the interior airduct (3) at center is cylindrical, be interior airduct passage, center emulsification coal pipe (2) near interior airduct (3) is the ladder taper shape, on terraced vertex of a cone plane equally distributed screwed hole is arranged, be beneficial to taper nozzle (1) is installed, and the one inside cambered surface hole and interior airduct (3) the clamping connection center at center are arranged in terraced vertex of a cone planar central, adopt equally distributed porous ring support to fix between center emulsification coal pipe (2) and the interior airduct (3), outer airduct (4) near emulsification coal pipe (2) is conical, be the exogenous wind tube passage, the passage between center emulsification coal pipe (2) and the outer airduct (4) adopts equally distributed porous ring support to fix.
Claims (8)
1, a kind of emulsification coal and burning ejecting device is characterized in that with the vegetable oil residue derivative be dispersion emulsifier, and adding coal, water and milk change into the emulsification coal.
2, a kind of emulsification coal according to claim 1 and burning ejecting device is characterized in that dispersion emulsifier is:
A. vegetable oil residue acylate, its general formula is
B. vegetable oil residue sulfonated bodies, its general formula is
C. vegetable oil residue saponification thing, its general formula is
3, a kind of emulsification coal according to claim 1 and burning ejecting device is characterized in that dispersion emulsifier can use separately, mix and use or use with other emulsifier, and addition is 0.1～10% of an emulsification coal weight.
4, a kind of emulsification coal according to claim 1 and burning ejecting device is characterized in that 200 selected order coal dust contents 55～75%.
5, a kind of emulsification coal and burning ejecting device is characterized in that shower nozzle adopts two air-flows, and the emulsification coal adds the compression air-atomizing, the liquefied petroleum gas combustion preheater.
6, a kind of emulsification coal according to claim 5 and burning ejecting device is characterized in that shower nozzle adopts external shunt in two air-flows, and one the tunnel uses emulsification coal circulation pipe to connect pans, and the emulsification coal turns back to pans and plays pre-heat effect after electrical heating preheating heating; Another road is connected with emulsification coal circulation pipe in the middle of filter and the flowmeter, regulates emulsification burning of coal amount.
7, a kind of emulsification coal according to claim 5 and burning ejecting device, it is characterized in that shower nozzle adopts single nozzle and many nozzles formula shower nozzle, the nozzle of single nozzle formula shower nozzle is at the positive center of shower nozzle, interior airduct near central tube is terraced taper, central tube and interior airduct adopt uniform porous ring support to fix, and interior airduct adopts uniform porous ring support to fix with outer airduct; The nozzle of many nozzles formula shower nozzle is interior airduct at the positive center of shower nozzle, it is conical that emulsification coal nozzle is ladder near central tube, in terraced circular cone top planar central one inside cambered surface hole and central tube clamping connection arranged, central tube and interior airduct, outer airduct adopt uniform porous ring support to fix between each.
8, a kind of emulsification coal according to claim 5 and burning ejecting device, it is characterized in that single nozzle and many nozzles formula shower nozzle, the liquefied petroleum tracheae is terraced taper, the circular cone liquefied petroleum gas air inlet pipe that one 90 ° of angles are arranged at the maximum position of terraced taper, in vertex of a cone district equally distributed fuel gas hole is arranged, outer airduct and liquefied petroleum tracheae are on vertex of a cone plane, and liquefied petroleum tracheae overcoat is clipped on the outer airduct fixing, and the liquefied petroleum tracheae is threaded with exogenous wind is effective at the maximum position of terraced circular cone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN92105853A CN1081503A (en) | 1992-07-20 | 1992-07-20 | Emulsification coal and burning ejecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN92105853A CN1081503A (en) | 1992-07-20 | 1992-07-20 | Emulsification coal and burning ejecting device |
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| Publication Number | Publication Date |
|---|---|
| CN1081503A true CN1081503A (en) | 1994-02-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN92105853A Pending CN1081503A (en) | 1992-07-20 | 1992-07-20 | Emulsification coal and burning ejecting device |
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| CN (1) | CN1081503A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102660335A (en) * | 2012-06-06 | 2012-09-12 | 刘一江 | Biological methanol oil prepared from illegal cooking oil products |
| CN107702129A (en) * | 2017-09-11 | 2018-02-16 | 官爱平 | Combustion method and its burner |
-
1992
- 1992-07-20 CN CN92105853A patent/CN1081503A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102660335A (en) * | 2012-06-06 | 2012-09-12 | 刘一江 | Biological methanol oil prepared from illegal cooking oil products |
| CN107702129A (en) * | 2017-09-11 | 2018-02-16 | 官爱平 | Combustion method and its burner |
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