CN104748547A - Efficient biofuel casting furnace and method of improving thermal efficiency - Google Patents
Efficient biofuel casting furnace and method of improving thermal efficiency Download PDFInfo
- Publication number
- CN104748547A CN104748547A CN201310728203.8A CN201310728203A CN104748547A CN 104748547 A CN104748547 A CN 104748547A CN 201310728203 A CN201310728203 A CN 201310728203A CN 104748547 A CN104748547 A CN 104748547A
- Authority
- CN
- China
- Prior art keywords
- combustion
- furnace
- air
- water
- thermal efficiency
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/90—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in food processing or handling, e.g. food conservation
- Y02A40/924—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in food processing or handling, e.g. food conservation using renewable energies
- Y02A40/928—Cooking stoves using biomass
Landscapes
- Solid-Fuel Combustion (AREA)
Abstract
The invention discloses an efficient biofuel casting furnace and a method of improving thermal efficiency, relates to an industrial casting furnace, and particularly relates to an aluminium product casting furnace using a novel fuel. The casting furnace is characterized in that the method of improving the thermal efficiency adopts a flowing air layer for surrounding a combustion furnace, the dissipated hot air is recycled to reduce heat loss and the water temperature is improved by the waste heat of burned stove ash; meanwhile, the air flow on a water surface is accelerated, the water vaporization is quickened, and the vaporized water is mixed with air in a combustion flame; liquid water can absorb a lot of heat during the vaporization, the heat loss is reduced, and the density and the specific heat capacity of the air in the combustion flame are increased, finally the combustion flame and the air in the combustion flame, the flowing air surrounding the combustion furnace and the recycled dissipated hot air are collected together, and the combustion temperature and the combustion thermal efficiency are improved. According to the invention, a bio-particle combustion material is adopted, so that the emission of sulfur dioxide, nitrogen dioxide, PM2.5, black smoke and the like is greatly reduced; the sustainability of energy sources is realized; the fuel temperature and the production efficiency are increased; and the energy consumption and the production cost are reduced.
Description
Technical field
The present invention relates to a kind of industrial casting furnace, be specifically related to a kind of aluminium casting furnace of New-type fuel.
Background technology
present industrial casting furnace majority adopts the non-renewable resources such as oil gas, coal as incendiary material, well-known: the resource of oil gas, coal is very limited, and oil gas, coal price lattice rise day by day, the cost of direct loud shadow downstream industry, second: burning can discharge the pernicious gas such as sulfur dioxide, micronic dust PM2.5, have a strong impact on the health of ecological environment and the mankind, 3rd: high fume temperature, aggravation greenhouse effects, energy-saving and emission-reduction have become the new problem and severe challenge that Industrial Boiler and the future development of industrial casting furnace industry faces.
Also there is the boiler adopting wood pellet biomass fuel as fuel in existing market, bits grain biomass fuel adopts wood substance grain as bio-fuel, its weak point: chimney has soot emission, micronic dust PM2.5 discharge exceeds standard, the quality of the too low serious loud shadow product of ignition temperature and production efficiency.
Summary of the invention
The efficient casting furnace of a kind of bio-fuel provided by the invention, adopt biologic grain incendiary material, not only significantly reduce the discharges such as sulfur dioxide, nitrogen dioxide, dust PM2.5, black smoke, achieve the sustainability of the energy simultaneously, and promote fuel temperature and production efficiency, reduce energy loss and production cost.
The present invention adopts following technical scheme: it is characterized in that: the method for the described lifting thermal efficiency adopts moving air layer to surround combustion furnace, then the hot air circulation of discharge is made to return to reduce heat loss, water temperature is improved again by the ashes waste heat after burning, accelerate the air flowing of the water surface simultaneously, accelerate the gasification of water, gasified water is mixed with air in combustion flame, liquid water absorbs heat in a large number when gasifying, not only reduce thermal loss, and the density of air and specific heat capacity in increase combustion flame, finally by the moving air of combustion flame and air and encirclement combustion furnace, the discharge hot blast three looped back closes in a place, promote the thermal efficiency of ignition temperature and burning.
Described high-performance bio fuel casting furnace includes bellows 10, combustion furnace 20 and ingot furnace 30, described bellows 10 inside is provided with little blower fan 11 and large blower fan 12, described combustion furnace 20 surrounding is provided with surrounds ventilation duct 23, the air intake vent surrounding ventilation duct 23 is connected with large blower fan 12, the bottom of combustion furnace 20 inside is provided with water tank 21, the top of water tank 21 is provided with grate 22, it is combustion-supporting plenum area 27 between grate 22 and water tank 21, combustion-supporting plenum area 27 is connected with little blower fan 11, combustion zone 25 above grate 22, the top of side, combustion zone 25 is provided with fuel inlet 26, fuel inlet 26 is connected with fuel tank 50, combustion zone 25 opposite side is provided with flame jet 24, flame jet 24 is connected with ingot furnace 30, the below of ingot furnace 30 inside is aluminium ingot founding district 33, aluminium ingot founding district 33 is connected with casting die 40, the top of ingot furnace 30 side is provided with exhaust cycle pipe 31, exhaust cycle pipe 31 other end, the air-out and flame jet 24 three that surround ventilation duct 23 close in a place.
Because the water in furnace bottom is flowed by the air that the little blower fan acceleration water surface is added in ashes heating, make the water Quick-gasifying in furnace bottom, liquid water absorbs heat in a large number when gasifying, not only reduce thermal loss, and the density of air and specific heat capacity in increase combustion flame, the specific heat capacity of gasified water is the specific heat capacity 1005J/ (kg DEG C) of 1850J/ (kg DEG C) much larger than air, formula according to calculating heat energy: energy=quality × specific heat capacity × temperature difference, the present invention is increasing gasified water containing air, not only increase air quality and density, improve specific heat capacity simultaneously, so the present invention contains the hot blast energy of gasified water higher than normal air hot blast energy, the hot air circulation of adding in casting furnace promotes fuel temperature more than 30%, so promote the melting speed of aluminum strip or aluminium ingot, and reduce energy loss, reduce molten casting time improving production efficiency, heat release liquefaction (being commonly called as: water vapour) after gasified water enters casting furnace, increases the humidity of casting furnace, thus reduces dust PM2.5 discharge.
Due to the present invention adopt bio-fuel be by tangerine bar, shell, wood chip, bamboo branch, straw, straw, rice husk, peanut shell, corncob, oil tea shell, cotton seed hulls, sweet sorghum stalk, maize straw, cotton stalk wherein one or more combinations of materials make through sieving, pulverize, dry, mix, be finally squeezed into granular; Renewable organic material is as incendiary material, solve the sustainable development technical barrier of the energy, and significantly reduce sulfur dioxide and emission of nitrogen oxide, reduce production cost simultaneously, contrast light diesel saves more than 50% cost, and contrast natural gas saves more than 40 costs.
The technological requirement of drying: water content is less than 10% ~ 15%; Be squeezed into granular technological requirement: pressure reaches 50 ~ 100Mpa, granular diameter is 6 ~ 8 millimeters, and length is 4 ~ 5 times of its diameter, and percentage of damage is less than 1.5% ~ 2.0%, raw material is by dry and elevated pressure changes shape, intensification, and temperature increase can reach 100 DEG C ~ 120 DEG C.
Described bellows 10 are provided with oxygenerator 13, and oxygenerator 13 is connected with little blower fan 11, large blower fan 12 respectively, in combustion, adopt secondary oxygenation solve biologic grain incendiary material imperfect combustion produce the technical barrier of tar (being commonly called as: black smoke).
Following test result is drawn through repeatedly testing:
| Test event | Tester | Test item result | National standard |
| Sulfur dioxide | Flue gas analyzer | 4mg/m3 | 250 mg/m3 |
| Flue dust | Flue gas analyzer | 36.6 mg/m3 | 75 mg/m3 |
| Lingemann blackness | Flue gas analyzer | 0 grade | 1 grade |
| Smoke evacuation air coefficient | Flue gas analyzer | 1.34 | ≤1.65 |
| Exhaust gas temperature | Flue gas analyzer | 68℃ | ≤170℃ |
| Boiler thermal output | Calorimeter | 84.04% | ≥74% |
| Heat loss due to unburned carbon | Electronic scale | 1.4% | No standard |
| Radiation loss | Calorimeter | 4.46% | No standard |
Note: national standard or foundation are:
Boiler air pollution emission standard DB44/765-2010
Boiler energy-saving technical supervision rule of management TSG G0002-2010
Industrial Boiler Thermal Performance Test code GB/T10180-2003
By market price, operating cost is contrasted
| Evaporation capacity | Machine name | Consume fuel | Fuel valency | Operating cost |
| 1 ton/hour | Used in LPG stove | 30 m3 | 18.6 yuan/m3 | 558 yuan |
| 1 ton/hour | Light diesel stove | 63kg | 8 yuan/kg | 504 yuan |
| 1 ton/hour | Heavy oil stove | 69kg | 4.5 yuan/kg | 310 yuan |
| 1 ton/hour | The present invention | 151kg | 1.3 yuan/kg | 196.3 first |
| 2 tons/hour | Used in LPG stove | 59 m3 | 18.6 yuan/m3 | 1097 yuan |
| 2 tons/hour | Light diesel stove | 119kg | 8 yuan/kg | 952 yuan |
| 2 tons/hour | Heavy oil stove | 130kg | 4.5 yuan/kg | 585 yuan |
| 2 tons/hour | The present invention | 286kg | 1.3 yuan/kg | 371.8 first |
| 6 tons/hour | Used in LPG stove | 167 m3 | 18.6 yuan/m3 | 3106 yuan |
| 6 tons/hour | Light diesel stove | 340kg | 8 yuan/kg | 2720 yuan |
| 6 tons/hour | Heavy oil stove | 370kg | 4.5 yuan/kg | 1665 yuan |
| 6 tons/hour | The present invention | 816kg | 1.3 yuan/kg | 1061 yuan |
| 10 tons/hour | Used in LPG stove | 279 m3 | 18.6 yuan/m3 | 5189 yuan |
| 10 tons/hour | Light diesel stove | 634kg | 8 yuan/kg | 5072 yuan |
| 10 tons/hour | Heavy oil stove | 674kg | 4.5 yuan/kg | 3033 yuan |
| 10 tons/hour | The present invention | 1522kg | 1.3 yuan/kg | 1978 yuan |
Prove all excellent national standard of indices of the present invention by above experimental data, especially the discharge of sulfur dioxide is well below national standard, and saves production cost.
accompanying drawing explanation
Fig. 1 is the cross-sectional schematic of enforcement of the present invention.
Symbol description in Fig. 1: bellows 10, little blower fan 11, large blower fan 12, oxygenerator 13, combustion furnace 20, water tank 21, grate 22, encirclement ventilation duct 23, flame jet 24, combustion zone 25, fuel inlet 26, combustion-supporting plenum area 27, ingot furnace 30, exhaust cycle pipe 31, aluminium ingot founding district 33, casting die 40, fuel tank 50.
Detailed description of the invention
As shown in Figure 1, the preferred embodiment of the method for described a kind of high-performance bio fuel casting furnace and the lifting thermal efficiency includes bellows 10, combustion furnace 20 and ingot furnace 30, described bellows 10 inside is provided with little blower fan 11 and large blower fan 12, described combustion furnace 20 surrounding is provided with surrounds ventilation duct 23, the air intake vent surrounding ventilation duct 23 is connected with large blower fan 12, the bottom of combustion furnace 20 inside is provided with water tank 21, the top of water tank 21 is provided with grate 22, it is combustion-supporting plenum area 27 between grate 22 and water tank 21, combustion-supporting plenum area 27 is connected with little blower fan 11, combustion zone 25 above grate 22, the top of side, combustion zone 25 is provided with fuel inlet 26, fuel inlet 26 is connected with fuel tank 50, combustion zone 25 opposite side is provided with flame jet 24, flame jet 24 is connected with ingot furnace 30, the below of ingot furnace 30 inside is aluminium ingot founding district 33, aluminium ingot founding district 33 is connected with casting die 40, the top of ingot furnace 30 side is provided with exhaust cycle pipe 31, exhaust cycle pipe 31 other end, the air-out and flame jet 24 three that surround ventilation duct 23 close in a place.
Described bellows 10 are provided with oxygenerator 13, and oxygenerator 13 is connected with little blower fan 11, large blower fan 12 respectively.
Last it is noted that obviously, above-described embodiment is only for example of the present invention is clearly described, and the restriction not to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.And thus the apparent change of amplifying out or variation be still among protection scope of the present invention.
Claims (4)
1. the method for a high-performance bio fuel casting furnace and the lifting thermal efficiency, it is characterized in that: the method for the described lifting thermal efficiency adopts moving air layer to surround combustion furnace, then the hot air circulation of discharge is made to return to reduce heat loss, water temperature is improved again by the ashes waste heat after burning, accelerate the air flowing of the water surface simultaneously, accelerate the gasification of water, gasified water is mixed with air in combustion flame, liquid water absorbs heat in a large number when gasifying, not only reduce thermal loss, and the density of air and specific heat capacity in increase combustion flame, finally by the moving air of combustion flame and air and encirclement combustion furnace, the discharge hot blast three looped back closes in a place, promote the thermal efficiency of ignition temperature and burning, described combustion furnace adopts bio-fuel.
2., as claim 1 high-performance bio fuel casting furnace and promote the method for the thermal efficiency, it is characterized in that: described bio-fuel be by tangerine bar, shell, wood chip, bamboo branch, straw, straw, rice husk, peanut shell, corncob, oil tea shell, cotton seed hulls, sweet sorghum stalk, maize straw, cotton stalk wherein one or more combinations of materials make through sieving, pulverize, dry, mix, be finally squeezed into granular;
The technological requirement of drying: water content is less than 10% ~ 15%
Be squeezed into granular technological requirement: pressure reaches 50 ~ 100Mpa, granular diameter is 6 ~ 8 millimeters, and length is 4 ~ 5 times of its diameter, and percentage of damage is less than 1.5% ~ 2.0%.
3. the method for a high-performance bio fuel casting furnace and the lifting thermal efficiency, it is characterized in that: described high-performance bio fuel casting furnace includes bellows (10), combustion furnace (20) and ingot furnace (30), described bellows (10) inside is provided with little blower fan (11) and large blower fan (12), described combustion furnace (20) surrounding is provided with surrounds ventilation duct (23), the air intake vent surrounding ventilation duct (23) is connected with large blower fan (12), the bottom of combustion furnace (20) inside is provided with water tank (21), the top of water tank (21) is provided with grate (22), combustion-supporting plenum area (27) between grate (22) and water tank (21), combustion-supporting plenum area (27) is connected with little blower fan (11), combustion zone (25) above grate (22), the top of combustion zone (25) side is provided with fuel inlet (26), fuel inlet (26) is connected with fuel tank (50), combustion zone (25) opposite side is provided with flame jet (24), flame jet (24) is connected with ingot furnace (30), the below of ingot furnace (30) inside is aluminium ingot founding district (33), aluminium ingot founding district (33) is connected with casting die (40), the top of ingot furnace (30) side is provided with exhaust cycle pipe (31), exhaust cycle pipe (31) other end, the air-out and flame jet (24) three that surround ventilation duct (23) close in a place.
4. as claim 3 high-performance bio fuel casting furnace and the method promoting the thermal efficiency, it is characterized in that: described bellows (10) are provided with oxygenerator (13), oxygenerator (13) is connected with little blower fan (11), large blower fan (12) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310728203.8A CN104748547A (en) | 2013-12-25 | 2013-12-25 | Efficient biofuel casting furnace and method of improving thermal efficiency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310728203.8A CN104748547A (en) | 2013-12-25 | 2013-12-25 | Efficient biofuel casting furnace and method of improving thermal efficiency |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104748547A true CN104748547A (en) | 2015-07-01 |
Family
ID=53588604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310728203.8A Pending CN104748547A (en) | 2013-12-25 | 2013-12-25 | Efficient biofuel casting furnace and method of improving thermal efficiency |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104748547A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106546624A (en) * | 2016-10-31 | 2017-03-29 | 山东建筑大学 | A kind of analysis sheet material accumulation of energy regular method and device |
| CN107462070A (en) * | 2017-08-07 | 2017-12-12 | 程立章 | A kind of smelting furnace for copper product production |
-
2013
- 2013-12-25 CN CN201310728203.8A patent/CN104748547A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106546624A (en) * | 2016-10-31 | 2017-03-29 | 山东建筑大学 | A kind of analysis sheet material accumulation of energy regular method and device |
| CN107462070A (en) * | 2017-08-07 | 2017-12-12 | 程立章 | A kind of smelting furnace for copper product production |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203478903U (en) | Biomass hot-air system applied to industrial coating lines | |
| CN205424878U (en) | Biomass steam boiler | |
| CN104748547A (en) | Efficient biofuel casting furnace and method of improving thermal efficiency | |
| CN201652305U (en) | Biomass fuel steam boiler | |
| CN203824306U (en) | Effective bio-fuel casting furnace | |
| CN104860310B (en) | Biomass fuel expansion furnace for preparing expanded graphite | |
| CN204625189U (en) | A kind of biomass fuel expansion furnace for the preparation of expanded graphite | |
| CN107937080A (en) | A kind of complex biological matter solid fuel | |
| CN208567111U (en) | Integral biomass is boiler dedicated | |
| CN205619366U (en) | Biomass fuel furnace secondary air inlet structure | |
| CN102914150A (en) | Biomass and natural gas crucible furnace | |
| CN202511453U (en) | Double-layer hot blast stove | |
| CN102041125A (en) | Fuel bar and preparation method thereof | |
| CN203501153U (en) | Biomass fuel boiler | |
| CN201225671Y (en) | Multiple-fuel environment protection energy-saving type cooking-heating two-purpose stove | |
| CN219829533U (en) | Carbonization furnace flue gas and waste heat recycling system | |
| CN205980289U (en) | Biomass hot blast stove | |
| CN204648299U (en) | Heat storage type combustion reacting furnace | |
| CN103727524A (en) | Biomass burner capable of drying fuel through waste heat | |
| CN207501134U (en) | A kind of small-sized biomass boiler | |
| CN203731464U (en) | High-concentration pulverized coal mixed injection device | |
| CN207811682U (en) | A kind of device of biomass direct-combustion boiler coupled biological matter gasification coproduction charcoal | |
| CN206478672U (en) | One kind promotes the clean-burning secondary air-jet device of boiler biomass fuel | |
| CN202432510U (en) | Biomass sawdust particle boiler | |
| CN211575099U (en) | Combustion furnace beneficial to full combustion of biomass fuel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150701 |