CN103884043A - Smoldering heating device - Google Patents
Smoldering heating device Download PDFInfo
- Publication number
- CN103884043A CN103884043A CN201410128306.5A CN201410128306A CN103884043A CN 103884043 A CN103884043 A CN 103884043A CN 201410128306 A CN201410128306 A CN 201410128306A CN 103884043 A CN103884043 A CN 103884043A
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- glows
- fuel
- biomass
- casing
- fuel bed
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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
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
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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
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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- Solid-Fuel Combustion (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
The invention relates to a domestic or industrial heating device adopting fixed fuel, in particular to a smoldering heating device. The smoldering heating device comprises a smoldering box and a smoke discharge pipe connected with the smoldering box. The smoldering heating device is characterized in that standard fuel is laid in the smoldering box in a layered mode, the standard fuel comprises a biomass fuel layer and a catalytic filter layer; the stacking density of the biomass fuel layer is 200-300 Kg/m<3>, and the thickness of the fuel layer is larger than or equal to 30 cm; the catalytic filter layer is biomass ash, the thickness of the catalytic filter layer is 5-6 cm, and the biomass ash contains the mixture of metallic oxide and silicon dioxide, wherein the mixture exists in a non-cocrystallization mode. According to the smoldering heating device, the fuel or the fuel layer is produced in a standard mode, hydrocyclone separation and adsorption processing are performed on smoke, and therefore the finally discharged smoke can reach the emission standard.
Description
Technical field
The present invention relates to a kind of family expenses or industrial heating plant that adopts fixed fuel, specifically the one heating installation that glows.
Background technology
Glowing is a kind of special combustion system, refer in solid matter, occur without gas phase flame, often follow the smoulder process of imperfect combustion product, generally occur in particle media porosity and looseness or that pile up.Its outstanding feature is that process is slow, is particularly suitable for rural area and disperses the little load heating distributing.
China has many application of glowing traditionally, the common handwarmer in such as rural area and smouldering while burning a heatable brick bed etc.The glow example of heating of the at present spontaneous application of northern area peasant is a lot, combustion pond in Hebei, there is application on the ground such as Liaoning, Heilungkiang, Shandong more.According to 2011 Chinese agriculture statistics, then in nearly 200,000, the combustion pond using.
Foreign study is mainly taking fire preventing with reduce fire damage as object, research smoldering process characteristic, mechanism, product distribution etc.Adopt experimental study and two kinds of methods of theory analysis.Experimental study glows communication process, internal temperature characteristic, product gas characteristic, process with variation of external condition etc.And analyze theoretically the reason of these characteristics.More complete in the analysis of smoldering process theoretical side abroad, particularly Princeton University has carried out detailed theoretical and experimental study to smoldering process.But they are mainly conceived to the analysis of phenomenon, little for application aspect research.
Domestic research, on the one hand taking fire preventing as object, is applied as object on the other hand to glow.Mainly taking experimental study as main, also in conjunction with corresponding theory analysis.Research contents comprises combustion pond Performance Detection, combustion pond effect, the feature of glowing for agricultural facility etc., the exploitation of the stove that glows, the gas detection etc. of glowing, the experiment of material smoldering process and the theory analysises etc. such as foam.
Summary of the invention
, process more clean in order to make to glow more easily controlled, the invention provides the one heating installation that glows, and will carry out standardized production to fuel or fuel bed, and flue gas is carried out to cyclonic separation and adsorption treatment, makes the flue gas of final discharge reach discharge standard.
The concrete technical scheme adopting of the present invention is:
The one heating installation that glows, comprise the casing that glows, with the smoke discharging pipe that the casing that glows is connected, it is characterized in that, described in the place Min layers in casing that glows be provided with standardization fuel, described standardization fuel comprises biomass fuel bed and oxidation catalyst filter layer; Wherein, the bulk density of biomass fuel bed is 200-300Kg/m
3, fuel bed depth>=30 centimetre; Described oxidation catalyst filter layer is biomass ash, and its thickness is 5-6 centimetre, includes with metal oxide that cocrystallization form does not exist and the mixture of silica in described biomass ash.
For obtaining with metal oxide and silica that cocrystallization form does not exist, described biomass ash is being less than burning acquisition under 800 DEG C of conditions by living beings.In the present invention, described metal oxide comprises sodium oxide molybdena, oxidant, alundum (Al2O3), magnesia, calcium oxide etc.
Oxidation catalyst filter layer of the present invention has following three kinds of effects:
1), under suction-operated: oxidation catalyst filter layer has very large specific area, particularly silica exist, can adsorb the solid particles such as dust in flue gas;
2) chemisorption: applicant's verification experimental verification, in flue gas, the amount of acidic substances such as acetic acid is higher, and in oxidation catalyst filter layer, calcium oxide, magnesia, potassium oxide etc. can absorb flue gas middle acid substance by chemical reaction;
3) catalytic action: applicant finds, oxidation catalyst filter layer of the present invention can be in 700～900 DEG C of catalysis flue gases coke tar cracking, the rate of rotation of its catalytic pyrolysis is more than 85%.
Applicant is in development, the oxidation catalyst filter materials such as overload Ni catalyst (stratiform) on probation, dolime, charcoal, the oxidation catalyst filter material of prior art does not all have above-mentioned three kinds of effects concurrently, and oxidation catalyst filter layer of the present invention obtains conveniently, cost is low, and more easily promote under-developed area in vast rural area etc.
Test confirmation through applicant, described biomass fuel bed high heating value >=10MJ/kg, lower than 10MJ/kg, fuel bed can not provide enough heats; Fuel bed moisture content: wet basis 20-40%.
One of fuel bed scheme, described biomass fuel bed is biomass powder or biological particles.
Two of fuel bed scheme, described biomass fuel bed is straw bundle and the biomass powder laid in straw bundle, described biomass powder is one or any mixture in powder of straw, leaf, shell, rice husk, sawdust, melon seed cases, peanut shell.
Wherein, described biomass ash is the combust of rice husk that dust burdening is higher, rice straw, corn stalk, straw, uses with natural loose depos-its state.
The scheme that standardization fuel of the present invention is more preferably is:
Described ideal fuels comprises casing, and in casing, place Min layers is provided with standardization fuel, and described fuel comprises biomass fuel bed and oxidation catalyst filter layer, and wherein, the bulk density of biomass fuel bed is 200-300Kg/m
3fuel bed depth>=30 centimetre; Described oxidation catalyst filter layer is biomass ash, its thickness 5-6 centimetre.
Casing of the present invention is incendivity thing, while glowing, burns together with fuel bed.
The shape of described casing is mated with the casing that glows, for example: for square or cylindrical.
In such scheme, after described ideal fuels is made, can unify to be dispensed into user.
Further, on smoke discharging pipe, be in series with filtrating equipment of flue gas, the device that described filtrating equipment of flue gas is prior art, it has cyclonic separation and adsorption filtration function concurrently simultaneously.
For realizing the accurate control of the heating installation that glows, one or more temperature sensors are set in smoke discharging pipe of the present invention, the casing that glows is provided with one or more Controllable Income Air mouths, also comprises that temperature controller is connected with temperature sensor, Controllable Income Air mouth.The present invention just can realize temperature control by adjusting air inflow quantity like this.
Controllable Income Air mouth adopts prior art, in the time only having an air inlet, just carrys out adjusting air inflow quantity by the aperture (air inlet port size) that regulates air inlet; In the time that multiple Controllable Income Air mouth is set, can be by closing or open partial-air admission mouth, adjusting air inflow quantity.
For adjusting device of the present invention to the inhomogeneity impact of room temperature, at the casing that glows or/and fin is installed on smoke discharging pipe.
The present invention is divided into microminiature, small-sized, medium-sized and large-scale plant according to the tank capacity of glowing, and casing sectional dimension and fuel slug coordinate, and length and structural shape are determined by capacity.
Main performance index of the present invention
(1) heat supply efficiency >=85%: burning gases direct heating is a kind of highly effective heating mode, in flue gas, the latent heat of vaporization of steam also can be used for indoor temperature rise, heat supply efficiency is much higher than boiler combustion mode heating.
(2) fume emission: meet Beijing's " boiler air pollution emission standard " (DB11/139-2007), and owing to adopting biomass fuel, SO2 emissions are significantly smaller than coal-burning boiler.
Soot emissions <10mg/m
3standard is: 10mg/m
3
Sulfur dioxide <1mg/m
3standard is: 20mg/m
3
Nitrogen oxide <65mg/m
3standard is: 150mg/m
3
The graceful I level of flue gas blackness < Green
(3) sensor-based burning velocity control: temperature is by burning velocity control, by regulating burning velocity to regulate temperature.Can regulate temperature according to heating demand (heating equipment temperature rule model), the difference of heating actual temperature and setting value is less than 1 DEG C.
Compared with prior art, advantage of the present invention is:
(1) ecological friendly: fuel can be gathered materials on the spot, combustion product ash content can do fertilizer application, is real energy-saving and environmental protection, green, capable of circulation, sustainable agriculture technology.
(2) economic serviceability: smoldering process burning is slow, combustion product gases direct heating, device structure is simple, reliable, economical convenient, is applicable to all kinds of heating demands.Can be according to user's requirement, can be week about, within one month, add primary fuel, or whole heating season do not need refuelling, and regular job maintenance work is few.Be particularly suitable for the feature that rural area heat load is low, focus on economy.
(3) fuel standard: the many agriculture and forestry organic waste materials that directly adopt of the current application of glowing.Because agriculture and forestry organic waste material is lack of standardization, combustion process is difficult to control, most burning velocities that reduce to add water.This burning and control cause smoldering process imperfect combustion product more, and in flue gas, particle, aerosol account for certain ingredients.The present invention carries out standardization to fuel, proposes the fuel that contains filter course, Catalytic Layer.This standardized fuel, makes the specification control of glowing and the purification of flue gas become possibility.
Brief description of the drawings
Fig. 1 is the structural representation of fuel slug of the present invention;
Fig. 2 is the glow structural representation of heating installation of microminiature of the present invention;
Fig. 3 is the structural representation of the medium-and-large-sized heating installation that glows of the present invention;
Fig. 4 is the structural representation of the small-sized heating installation that glows of the present invention.
In Fig. 2,3,4, the smoke discharging pipe 3 that the heating installation that glows includes the casing 2 that glows, is connected with the casing 2 that glows.
Detailed description of the invention
The one heating installation that glows, the smoke discharging pipe that comprises the casing that glows, is connected with the casing that glows, described in the place Min layers in casing that glows be provided with standardization fuel, described standardization fuel comprises biomass fuel bed and oxidation catalyst filter layer; Wherein, the bulk density of biomass fuel bed is 200-300Kg/m
3, fuel bed depth>=30 centimetre; Described oxidation catalyst filter layer is biomass ash, and its thickness is 5-6 centimetre, and described biomass ash is being less than burning acquisition under 800 DEG C of conditions by the one in rice straw, corn stalk, straw or any mixture.
Standardization fuel be prepared with following two schemes:
Scheme one: small-sized or medium-sized glowing in heating installation, can directly lay standardization fuel in the casing layering of glowing, once use one for warm season.
Scheme two: described ideal fuels comprises casing, in casing, place Min layers is provided with standardization fuel, and described fuel comprises biomass fuel bed and oxidation catalyst filter layer, and wherein, the bulk density of biomass fuel bed is 200-300Kg/m
3fuel bed depth>=30 centimetre; Described oxidation catalyst filter layer is biomass ash, its thickness 5-6 centimetre.In such scheme, after described ideal fuels is made, can unify to be dispensed into user.
On smoke discharging pipe, be in series with filtrating equipment of flue gas, the device that described filtrating equipment of flue gas is prior art, it has cyclonic separation and adsorption filtration function concurrently simultaneously.
For realizing the accurate control of the heating installation that glows, one or more temperature sensors are set in smoke discharging pipe of the present invention, the casing that glows is provided with one or more Controllable Income Air mouths, also comprises that temperature controller is connected with temperature sensor, Controllable Income Air mouth.The present invention just can realize temperature control by adjusting air inflow quantity like this.
Controllable Income Air mouth adopts prior art, in the time only having an air inlet, just carrys out adjusting air inflow quantity by the aperture (air inlet port size) that regulates air inlet; In the time that multiple Controllable Income Air mouth is set, can be by closing or open partial-air admission mouth, adjusting air inflow quantity.
For adjusting device of the present invention to the inhomogeneity impact of room temperature, at the casing that glows or/and fin is installed on smoke discharging pipe.
Claims (9)
1. the heating installation that glows, comprise the casing that glows, with the smoke discharging pipe that the casing that glows is connected, it is characterized in that, described in the place Min layers in casing that glows be provided with standardization fuel, described standardization fuel comprises biomass fuel bed and oxidation catalyst filter layer; Wherein, the bulk density of biomass fuel bed is 200-300Kg/m
3, fuel bed depth>=30 centimetre; Described oxidation catalyst filter layer is biomass ash, and its thickness is 5-6 centimetre, includes with metal oxide that cocrystallization form does not exist and the mixture of silica in described biomass ash.
2. the heating installation that glows according to claim 1, is characterized in that, described biomass ash is being less than burning acquisition under 800 DEG C of conditions by living beings.
3. the heating installation that glows according to claim 1, is characterized in that, described biomass fuel bed high heating value >=10MJ/kg; Fuel bed moisture content: wet basis 20-40%.
4. according to the heating installation that glows described in any one in claim 1-3, it is characterized in that, described biomass fuel bed is biomass powder or biological particles.
5. according to the heating installation that glows described in any one in claim 1-3, it is characterized in that, described biomass fuel bed is straw bundle and the biomass powder laid in straw bundle, and described biomass powder is one or any mixture in powder of straw, leaf, shell, rice husk, sawdust, melon seed cases, peanut shell.
6. the heating installation that glows according to claim 5, is characterized in that, described biomass ash is the combust of rice husk that dust burdening is higher, rice straw, corn stalk, straw, uses with natural loose depos-its state.
7. the heating installation that glows according to claim 1, is characterized in that, described ideal fuels comprises casing, in casing, place Min layers is provided with standardization fuel, described fuel comprises biomass fuel bed and oxidation catalyst filter layer, and wherein, the bulk density of biomass fuel bed is 200-300Kg/m
3fuel bed depth>=30 centimetre; Described oxidation catalyst filter layer is biomass ash, and its thickness is 5-6 centimetre; Described standardization fuel and the leave>=space of 20 centimetres of the casing upper surface that glows are for flue gas and circulation of air.
8. the heating installation that glows according to claim 1, is characterized in that, is in series with filtrating equipment of flue gas on smoke discharging pipe.
9. the heating installation that glows according to claim 8, it is characterized in that, one or more temperature sensors are set in smoke discharging pipe, and the casing that glows is provided with one or more Controllable Income Air mouths, also comprises that temperature controller is connected with temperature sensor, Controllable Income Air mouth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410128306.5A CN103884043A (en) | 2014-04-01 | 2014-04-01 | Smoldering heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410128306.5A CN103884043A (en) | 2014-04-01 | 2014-04-01 | Smoldering heating device |
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| Publication Number | Publication Date |
|---|---|
| CN103884043A true CN103884043A (en) | 2014-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410128306.5A Pending CN103884043A (en) | 2014-04-01 | 2014-04-01 | Smoldering heating device |
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| CN (1) | CN103884043A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109755623A (en) * | 2019-02-28 | 2019-05-14 | 山东理工大学 | A kind of direct carbon solid oxide fuel cell group of micro-tubular based on melon seed cases derivatived fuel |
| CN110340115A (en) * | 2019-07-25 | 2019-10-18 | 江苏大地益源环境修复有限公司 | Glow reaction unit |
| US11186502B2 (en) | 2016-07-15 | 2021-11-30 | The Governing Council Of The University Of Toronto | Treatment of fecal matter by smoldering and catalysis |
| WO2022134448A1 (en) * | 2020-12-24 | 2022-06-30 | 华中科技大学 | Organic solid waste self-sustaining smoldering disposal method based on in-furnace catalytic oxidation |
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| CN2833362Y (en) * | 2005-09-25 | 2006-11-01 | 山东理工大学 | Small-sized indoor heating furnace with biomass smoldering |
| CN201706536U (en) * | 2010-06-04 | 2011-01-12 | 朝阳市天龙大型水泥管道（集团）有限公司 | Biomass material smouldering furnace |
| CN102155758A (en) * | 2011-02-26 | 2011-08-17 | 大连理工大学 | Comprehensive heating system by using hot water based on fire pit |
| CN102777967A (en) * | 2011-05-11 | 2012-11-14 | 施春军 | Heating system of biomass water circulating fireplace |
| CN103666623A (en) * | 2013-11-14 | 2014-03-26 | 武汉中海信能源科技发展有限公司 | Biomass fuel with high calorific value and preparation method thereof |
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2014
- 2014-04-01 CN CN201410128306.5A patent/CN103884043A/en active Pending
Patent Citations (5)
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| CN2833362Y (en) * | 2005-09-25 | 2006-11-01 | 山东理工大学 | Small-sized indoor heating furnace with biomass smoldering |
| CN201706536U (en) * | 2010-06-04 | 2011-01-12 | 朝阳市天龙大型水泥管道（集团）有限公司 | Biomass material smouldering furnace |
| CN102155758A (en) * | 2011-02-26 | 2011-08-17 | 大连理工大学 | Comprehensive heating system by using hot water based on fire pit |
| CN102777967A (en) * | 2011-05-11 | 2012-11-14 | 施春军 | Heating system of biomass water circulating fireplace |
| CN103666623A (en) * | 2013-11-14 | 2014-03-26 | 武汉中海信能源科技发展有限公司 | Biomass fuel with high calorific value and preparation method thereof |
Non-Patent Citations (1)
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| 张军: "灰化温度对生物质灰特征的影响", 《燃料化学学报》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11186502B2 (en) | 2016-07-15 | 2021-11-30 | The Governing Council Of The University Of Toronto | Treatment of fecal matter by smoldering and catalysis |
| CN109755623A (en) * | 2019-02-28 | 2019-05-14 | 山东理工大学 | A kind of direct carbon solid oxide fuel cell group of micro-tubular based on melon seed cases derivatived fuel |
| CN110340115A (en) * | 2019-07-25 | 2019-10-18 | 江苏大地益源环境修复有限公司 | Glow reaction unit |
| WO2022134448A1 (en) * | 2020-12-24 | 2022-06-30 | 华中科技大学 | Organic solid waste self-sustaining smoldering disposal method based on in-furnace catalytic oxidation |
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Application publication date: 20140625 |