CN203382734U - Refuse derived fuel structure for smoldering furnace - Google Patents
Refuse derived fuel structure for smoldering furnace Download PDFInfo
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- CN203382734U CN203382734U CN201320442854.6U CN201320442854U CN203382734U CN 203382734 U CN203382734 U CN 203382734U CN 201320442854 U CN201320442854 U CN 201320442854U CN 203382734 U CN203382734 U CN 203382734U
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- wooden
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- stove
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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
Abstract
The utility model discloses a refuse derived fuel structure for a smoldering furnace. The refuse derived fuel structure is characterized in that the refuse derived fuel comprises a wood refuse block and a flame retardant layer arranged on the outer surface of the wood refuse block, wherein the flame retardant layer is formed by the arrangement of flame retardant particles dispersedly arranged on the outer surface of the wood refuse block, the total volume of the flame retardant particles accounts for 7%-16% of the total volume of the wood refuse block, and the distribution area of the flame retardant particles on the outer surface of the wood refuse block accounts for 68%-86% of the area of the outer surface of the wood refuse block. The refuse derived fuel structure can be used for effectively solving the problems in the prior art that as open fire easily occurs in a biomass fuel smoldering process, the conversion efficiency of fuels in the smoldering furnace is greatly reduced, and accidents are possibly caused. The refuse derived fuel structure disclosed by the utility model is stable in the smoldering process; the smoldering furnace has high conversion efficiency of fuels, good safety and very high practical value.
Description
Technical field
The utility model relates to the fuel technology field, especially relates to the stove that the glows garbage fuel structure that a kind of stove that is applicable to glowing uses.
Background technology
In the prior art, a large amount of organic wastes such as branch, tea seed shell and agricultural crop straw are not high due to its combustion heat value, generally do not act as a fuel use and become rubbish or directly destroyed by fire, not only polluted environment, therefore also cause the waste of resource, also have the people that the biomass processing such as agricultural crop straw are made into to granular fuel that calorific value is higher for daily life.The making method of traditional biomass fuel pellet be by raw materials such as agricultural crop straw and wood working wastes after pulverizing, drying, directly utilize special-purpose briquetting plant equipment to be compressed into density and use for blocks of solid fuel.The essence of this working method is exactly by pressurization, the density of biomass to be increased, or adds ignition dope to increase the combustionvelocity of biomass in biomass material simultaneously; But, because the combustion heat value of branch the like waste is not high, the result of use that directly acts as a fuel is not very desirable.Therefore the branch the like waste also has method by glowing to be processed.Glowing is a kind of form of solid combustion, is the smoulder without visible ray, usually produces the phenomenons such as cigarette and temperature rising, and the difference of it and flaming combustion is without flame, and it and aphlogistic difference are thermolysis to go out combustible gas.The stove that glows is the garbage fuels such as branch that those combustion heat values are not high, tea seed shell, agricultural crop straw, the characteristics of utilizing it easily to glow, by the chamber of glowing, it is glowed, then the flue gas (comprising flammable CO (carbon monoxide converter) gas, carbon particulate etc.) of indoor generation of glowing is exported by air outlet after purifying treatment, as geseous fuel, uses.Open day is on March 28th, 2007, the patent document that publication number is CN1936427A discloses a kind of small indoor biological material hidden-burning heating stove, comprise the furnace chamber surrounded by the body of heater with thermal insulation layer, it is characterized in that setting up the inlet mouth with variable valve and ash discharging hole, spout, the chimney be communicated with furnace chamber and cover the bell on spout, wherein chimney is positioned at a side on body of heater top, inlet mouth is arranged on the upper end away from the sidewall of the furnace body of chimney, spout is positioned at the top of body of heater, ash discharging hole is arranged at the lower end of sidewall of the furnace body, and the shutoff of ash discharging hole place has the ash discharge sliding door.This structure is compared with coal furnace, and in economic convenience, product, content of sulfur dioxide is few; With brazier, combustion pond, compare, warming stove is indoor, and flue gas is discharged through chimney, and the liberated heat that glows almost all is released in indoor, be difficult for catching fire, and safety, the thermo-efficiency advantages of higher, especially be adapted to the Rural areas that biomass are abundant.Open day is on May 9th, 2012, the patent document that publication number is CN 102443441A discloses a kind of smoke gasification processing system for refuse-derived fuel and control method, smoke gasification processing system for refuse-derived fuel comprises for the fuming device by the garbage fuel smoke gasification and the flue gas processing device that is connected with the fuming device, described fuming device comprises the chamber of glowing, feeding unit, drawing mechanism, ignition device and air-blast device, the pipe on top, chamber of glowing connects flue gas processing device by the detection of exhaust gas compositions device, be provided with stopping composition in the decontamination chamber of flue gas processing device, bottom is provided with water outlet, smoke gasification processing system for refuse-derived fuel also comprises automatic control system.This furnace apparatus that glows can be converted into inflammable gas by solid organic wastes such as wood chip, agricultural crop straws, and efficiency is high, can realize full automatic control.But the mode that prior art is processed the branch the like waste by the stove that glows is proven, very large potential safety hazard is also arranged, when in the stove that glows, the space between fuel is larger exactly, naked light easily appears, the band flame appears, in this case, the temperature meeting fast rise that the stove that glows is interior, thereby further aggravate the flaming combustion trend of fuel, development is gone down, light the interior fuel of stove that makes to glow exhausts very soon, produce a large amount of carbonic acid gas, the fuel conversion efficiency of the stove that makes to glow reduces greatly simultaneously; Heavy burn out stove equipment, and may cause security incident.
The utility model content
The purpose of this utility model is that naked light easily appears in the biomass fuel for solving prior art in the treating processes of glowing, thereby the efficiency of conversion that makes fuel reduces and may cause the problem of security incident greatly, provide a kind of stove that glows garbage fuel structure that efficiency of conversion is high, security is good of, fuel stable at smoldering process.
The utility model is to solve the problems of the technologies described above adopted technical scheme to be, a kind of stove that glows garbage fuel structure, described garbage fuel comprises wooden executing garbage and is arranged on the flame-retardant layer of wooden executing garbage outside surface, described flame-retardant layer consists of in the fire-retardant particle alignment of wooden executing garbage outside surface scattering device, the cumulative volume of fire-retardant particle is 7% to 16% of wooden executing garbage cumulative volume, and fire-retardant particle is 68% to 86% of wooden executing garbage exterior surface area at the distribution area of wooden executing garbage outside surface.The utility model arranges at the outside surface of wooden executing garbage the flame-retardant layer that one deck consists of fire-retardant particle alignment, and fire-retardant particle is the outside surface that dispersion state is arranged at wooden executing garbage, and covers the outside surface of wooden executing garbage is most of.The wooden executing garbage here can be the wood wastes of the lumphy structures such as treated branch, tea seed shell, agricultural crop straw, the fire-retardant particle scattering device here is to coat wooden executing garbage fully and affect igniting of wooden executing garbage for fear of fire-retardant particle in the outside surface of wooden executing garbage, reserve the part space in flame-retardant layer, be conducive to igniting of wooden executing garbage fuel, fire-retardant particle covers wooden executing garbage fully may make wooden executing garbage can't ignite and stop working.And fire-retardant particle is an approximate number at the distribution area per-cent of wooden executing garbage outside surface, it shows that the outside surface major part of wooden executing garbage is covered by fire-retardant particle, because be difficult to the distribution area per-cent of the fire-retardant particle of Accurate Measurement at wooden executing garbage outside surface in actual production.Flame-retardant layer can play certain fire-retardant buffer action on the one hand between wooden executing garbage, thereby reduces the combustionvelocity of wooden executing garbage, makes it meet the requirement of the stove that glows; On the other hand, the fire-retardant particle that forms flame-retardant layer can automatically come off from wooden executing garbage when wooden executing garbage burning, the fire-retardant particle come off can automatic filling in the space between wooden executing garbage, thereby the voidage of the stove combustion zone that makes to glow reduces greatly.The fire-retardant particle of restriction of the present utility model and the volume ratio of wooden executing garbage have taken into full account the in most cases pore size between wooden executing garbage, make the fire-retardant particle come off can fill enough spaces, can avoid like this or significantly reduce the situation that the naked light burning appears in the stove fuel that glows, thereby the smoldering process of the stove that makes to glow is stable, carry out, guarantee the to glow high-efficiency operation of stove, avoid occurring industrial accident.The cumulative volume here refers to that two kinds of raw materials are in the original state lower volume, the cumulative volume of fire-retardant particle is that 7% to 16% of wooden executing garbage cumulative volume refers in the wooden executing garbage of a cubic metre, the fire-retardant particle that adds 0.07 to 0.16 cubic metre, the fire-retardant particle here can be in the course of processing of wooden executing garbage be consolidated in it on wooden executing garbage by the mode such as bonding.
As preferably, the outside surface of described wooden executing garbage also is provided with combustion-supporting particle, described combustion-supporting particle is between the fire-retardant particle of described flame-retardant layer, and described combustion-supporting particle and fire-retardant particle are 75% to 95% of wooden executing garbage exterior surface area at the distribution area of wooden executing garbage outside surface.For the comparatively closely knit wooden executing garbage of some quality, although solved the problem that the naked light burning easily occurs after its outside surface coats flame-retardant layer, but simultaneously due to these wooden executing garbages in the situation that have each other fire-retardant particle to separate to be difficult to ignite, therefore may affect the normal operation of the stove that glows, therefore set up combustion-supporting particle at the outside surface of wooden executing garbage, these combustion-supporting particles are between the fire-retardant particle of flame-retardant layer and directly contact the outside surface of fuel, thereby stove does not occur that the situation of naked light burning makes up fuel and is difficult to ignite and flame-out defect may occur guaranteeing to glow, reach the high-efficiency operation of the stove of guaranteeing to glow and can avoid occurring the purpose of industrial accident.In addition, the outside surface of this fuel is outside also some is directly exposed to, and fire-retardant particle and combustion-supporting particle not exclusively coat fuel, and certain space is arranged around combustion-supporting particle, be conducive to like this improve the combustionvelocity of combustion-supporting particle, make its wooden executing garbage fuel that ignites quickly itself.
As preferably, the lumphy structure that wooden executing garbage is extrusion molding.The fuel of stove of glowing is directly to adopt the wooden executing garbage fuel by pulverizing mostly, but also can adopt the wooden executing garbage fuel by extrusion molding, when the fuel of the stove that glows adopts the lumphy structure fuel of extrusion molding formation, because the fuel degree of compactness is very high, therefore be particluarly suitable for the fuel structure form that the fuel outside surface arranges combustion-supporting particle.
As preferably, the granularity of described fire-retardant particle is 0.3 to 1 millimeter; The granularity of described combustion-supporting particle is 0.3 to 1 millimeter.The granularity of fire-retardant particle (being granular size) is relevant to the lumphy structure size of wooden executing garbage, the high-efficiency operation of the excessive or too small stove that all is unfavorable for glowing, this is the preferred values scope drawn through repetition test, but because fire-retardant particle is not strict particle of the same size usually, therefore the globule size of fire-retardant particle can be a scope, and the area requirement that only needs most of fire-retardant particles to meet above-mentioned globule size can guarantee the to glow high-efficiency operation of stove.For combustion-supporting particle, in the space be arranged between fire-retardant particle, therefore to the globule size of combustion-supporting particle, require consistent with fire-retardant particle.
As preferably, described fire-retardant particle is sand or loess; Described combustion-supporting particle is charcoal particle or wood chip.Adopt tiny sand or loess as fire-retardant particle; charcoal particle or wood chip be as combustion-supporting particle, have advantages of material be easy to get, with low cost, and the dirt produced after burning is a kind of good organic fertilizer; can not exert an influence to environment, can also increase economic efficiency.
The beneficial effects of the utility model are: naked light easily appears in the biomass fuel that it has solved prior art effectively in smoldering process, thereby the efficiency of conversion of the fuel of the stove that makes to glow reduces and may cause the problem of security incident greatly, fuel structure smoldering process of the present utility model is stable, the fuel conversion efficiency of stove of glowing is high, security good, has very high practical value.
The accompanying drawing explanation
Fig. 1 is a kind of sectional structure schematic diagram of the present utility model;
Fig. 2 is another kind of sectional structure schematic diagram of the present utility model.
In figure: 1. wooden executing garbage, 2. fire-retardant particle, 3. combustion-supporting particle.
Embodiment
Below by embodiment, and by reference to the accompanying drawings the embodiment of technical solutions of the utility model is further described.
In embodiment 1 as shown in Figure 1, a kind of stove that glows garbage fuel structure, described garbage fuel comprises wooden executing garbage 1 and is arranged on the flame-retardant layer of wooden executing garbage outside surface, described flame-retardant layer is arranged and is formed at the fire-retardant particle sand 2 of wooden executing garbage outside surface by scattering device, the granularity of described fire-retardant particle is 0.3 to 1 millimeter, the cumulative volume of fire-retardant particle is 7% of wooden executing garbage cumulative volume, and fire-retardant particle is 68% to 86% of wooden executing garbage exterior surface area at the distribution area of wooden executing garbage outside surface.The wooden executing garbage of the present embodiment can be the wood wastes of the lumphy structures such as treated branch, tea seed shell, agricultural crop straw.
The fire-retardant particle of embodiment 2 is loess, the cumulative volume of fire-retardant particle is 16% of wooden executing garbage cumulative volume, the outside surface of described wooden executing garbage also is provided with combustion-supporting particle 3(and sees Fig. 2), the charcoal particle that described combustion-supporting particle is 0.3 to 1 millimeter of granularity, combustion-supporting particle is between the fire-retardant particle of described flame-retardant layer, combustion-supporting particle and fire-retardant particle are 75% to 95% of wooden executing garbage exterior surface area at the distribution area of wooden executing garbage outside surface, and all the other are identical with embodiment 1.
Embodiment 3
The lumphy structure that the wooden executing garbage of embodiment 3 is extrusion molding, it is 0.3 to 1 millimeter combustion-supporting particle that wooden executing garbage outside surface is bonded with granularity, the wood chip that described combustion-supporting particle is, all the other are identical with embodiment 2.
When fuel of the present utility model is used in the stove that glows, the flame-retardant layer on wooden executing garbage surface can play certain fire-retardant buffer action on the one hand between wooden executing garbage, thereby reduces the combustionvelocity of wooden executing garbage, makes it meet the requirement of the stove that glows; On the other hand, the fire-retardant particle that forms flame-retardant layer can automatically come off from wooden executing garbage when wooden executing garbage burning, the fire-retardant particle come off can automatic filling in the space between wooden executing garbage, thereby the voidage of the stove combustion zone that makes to glow reduces greatly, can avoid like this or significantly reduce the situation that the naked light burning appears in the stove fuel that glows, thereby the smoldering process of the stove that makes to glow is stable, carry out, the high-efficiency operation of the stove of guaranteeing to glow, avoid occurring industrial accident.
In addition to the implementation; in claims of the present utility model and the disclosed scope of specification sheets; technical characterictic of the present utility model or technical data can be reselected and be combined; thereby form new embodiment; it is attainable without carrying out creative work that these are all those skilled in the art, so these the utility model embodiment of not having to describe in detail also should be considered as specific embodiment of the utility model and within protection domain of the present utility model.
Claims (7)
1. the stove that glows a garbage fuel structure, it is characterized in that, described garbage fuel comprises wooden executing garbage (1) and is arranged on the flame-retardant layer of wooden executing garbage outside surface, described flame-retardant layer is arranged and is formed at the fire-retardant particle of wooden executing garbage outside surface (2) by scattering device, the cumulative volume of fire-retardant particle is 7% to 16% of wooden executing garbage cumulative volume, and fire-retardant particle is 68% to 86% of wooden executing garbage exterior surface area at the distribution area of wooden executing garbage outside surface.
2. the stove that glows garbage fuel structure according to claim 1, it is characterized in that: the outside surface of described wooden executing garbage also is provided with combustion-supporting particle (3), described combustion-supporting particle is between the fire-retardant particle of described flame-retardant layer, and described combustion-supporting particle and fire-retardant particle are 75% to 95% of wooden executing garbage exterior surface area at the distribution area of wooden executing garbage outside surface.
3. the stove that glows garbage fuel structure according to claim 2, is characterized in that: the lumphy structure that described wooden executing garbage is extrusion molding.
4. the stove that glows garbage fuel structure according to claim 1, it is characterized in that: the granularity of described fire-retardant particle is 0.3 to 1 millimeter.
5. the stove that glows garbage fuel structure according to claim 2, it is characterized in that: the granularity of described combustion-supporting particle is 0.3 to 1 millimeter.
6. according to claim 1 or 2 or 3 or the 4 or 5 described stove that glows garbage fuel structures, it is characterized in that: fire-retardant particle is sand or loess.
7. according to claim 2 or the 3 or 5 described stove that glows garbage fuel structures, it is characterized in that: described combustion-supporting particle is charcoal particle or wood chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320442854.6U CN203382734U (en) | 2013-07-22 | 2013-07-22 | Refuse derived fuel structure for smoldering furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320442854.6U CN203382734U (en) | 2013-07-22 | 2013-07-22 | Refuse derived fuel structure for smoldering furnace |
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| CN203382734U true CN203382734U (en) | 2014-01-08 |
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| CN201320442854.6U Expired - Fee Related CN203382734U (en) | 2013-07-22 | 2013-07-22 | Refuse derived fuel structure for smoldering furnace |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112797422A (en) * | 2020-12-30 | 2021-05-14 | 华中科技大学 | Low-calorific-value sludge smoldering treatment method |
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2013
- 2013-07-22 CN CN201320442854.6U patent/CN203382734U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112797422A (en) * | 2020-12-30 | 2021-05-14 | 华中科技大学 | Low-calorific-value sludge smoldering treatment method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140108 Termination date: 20170722 |