CN106753478A - A kind of solid fuel staged combustion device and its staged-combustion method - Google Patents
A kind of solid fuel staged combustion device and its staged-combustion method Download PDFInfo
- Publication number
- CN106753478A CN106753478A CN201611107749.1A CN201611107749A CN106753478A CN 106753478 A CN106753478 A CN 106753478A CN 201611107749 A CN201611107749 A CN 201611107749A CN 106753478 A CN106753478 A CN 106753478A
- Authority
- CN
- China
- Prior art keywords
- solid
- combustion
- air
- state
- air feed
- 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.)
- Granted
Links
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 90
- 239000004449 solid propellant Substances 0.000 title claims abstract description 59
- 238000009841 combustion method Methods 0.000 title claims abstract description 13
- 239000000446 fuel Substances 0.000 claims abstract description 25
- 239000007787 solid Substances 0.000 claims abstract description 24
- 230000008602 contraction Effects 0.000 claims abstract description 23
- 238000000197 pyrolysis Methods 0.000 claims abstract description 23
- 238000004227 thermal cracking Methods 0.000 claims abstract description 21
- 238000010438 heat treatment Methods 0.000 claims abstract description 4
- 239000010410 layer Substances 0.000 claims description 31
- 238000002156 mixing Methods 0.000 claims description 31
- 239000002893 slag Substances 0.000 claims description 20
- 239000000463 material Substances 0.000 claims description 13
- 239000007789 gas Substances 0.000 claims description 11
- 239000011280 coal tar Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 8
- 238000005336 cracking Methods 0.000 claims description 7
- 239000000126 substance Substances 0.000 claims description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 6
- 229910052799 carbon Inorganic materials 0.000 claims description 6
- 229930195733 hydrocarbon Natural products 0.000 claims description 6
- 150000002430 hydrocarbons Chemical class 0.000 claims description 6
- 239000001301 oxygen Substances 0.000 claims description 6
- 229910052760 oxygen Inorganic materials 0.000 claims description 6
- 238000000926 separation method Methods 0.000 claims description 6
- 150000003384 small molecules Chemical class 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 5
- 230000005855 radiation Effects 0.000 claims description 5
- 239000002737 fuel gas Substances 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 3
- 239000001569 carbon dioxide Substances 0.000 claims description 3
- 238000009792 diffusion process Methods 0.000 claims description 3
- 239000001257 hydrogen Substances 0.000 claims description 3
- 229910052739 hydrogen Inorganic materials 0.000 claims description 3
- 229920002521 macromolecule Polymers 0.000 claims description 3
- 238000005192 partition Methods 0.000 claims description 3
- 239000000047 product Substances 0.000 claims description 3
- 239000002356 single layer Substances 0.000 claims description 3
- 239000013589 supplement Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 abstract description 6
- 230000036541 health Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000003245 coal Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- -1 stalk Substances 0.000 description 2
- 230000006399 behavior Effects 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000003818 cinder Substances 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000034994 death Effects 0.000 description 1
- 231100000517 death Toxicity 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 125000005575 polycyclic aromatic hydrocarbon group Chemical group 0.000 description 1
- 238000012802 pre-warming Methods 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
- C10B53/02—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form of cellulose-containing material
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
- C10B53/04—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form of powdered coal
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G9/00—Thermal non-catalytic cracking, in the absence of hydrogen, of hydrocarbon oils
- C10G9/14—Thermal non-catalytic cracking, in the absence of hydrogen, of hydrocarbon oils in pipes or coils with or without auxiliary means, e.g. digesters, soaking drums, expansion means
- C10G9/18—Apparatus
- C10G9/20—Tube furnaces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C7/00—Combustion apparatus characterised by arrangements for air supply
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23H—GRATES; CLEANING OR RAKING GRATES
- F23H5/00—Double grates
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23H—GRATES; CLEANING OR RAKING GRATES
- F23H7/00—Inclined or stepped grates
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Solid-Fuel Combustion (AREA)
Abstract
A kind of solid fuel staged combustion device and its staged-combustion method, are related to a kind of burner and its combustion method, device to include Bunker and solid-state combustion parts(1), gaseous combustion part(2), classification air feed part(3)With multigroup fire grate part(4), Bunker and solid-state combustion parts(1)Including charging aperture(1.1), newly fuel layer(1.2), dry thermal cracking layer(1.3)With solid-state burning zone(1.4);Gaseous combustion part(2)Positioned at the Bunker and solid-state combustion parts(1)Side, including air-breathing contraction section(2.1), mixed pyrolysis section(2.2)And diffuser(2.3);Classification air feed part(3)One-level air feed including bottom(3.1)And with gaseous combustion part(2)Two grades of connected air feeds(3.2)With three-level air feed(3.3), the equal the pre-heat treatment of air feed;Staged-combustion method of the present invention can realize that solids fraction and gaseous component burn completely in solid fuel, really realize the cleaning burning of solid fuel.
Description
Technical field
The present invention relates to a kind of device and its combustion method, more particularly to a kind of solid fuel staged combustion device and its
Staged-combustion method.
Background technology
Solid fuel ignition discharge be one of important sources of atmosphere pollution, directly influence Regional Atmospheric Environment and
The health of resident, current typical case is exactly the serious gray haze pollution of South Asia brown cloud and China.According to the World Health Organization
Recent statistics, Present Global still has about 3,000,000,000 populations cannot to obtain clean energy resource, is still fired using solids such as coal, stalk, fuel woods
Expect for cooking and warming oneself, it is most all in middle and low income country, so as to cause global 4.30 ten thousand people's premature deaths.
The burning of solid fuel, hence it is evident that used different from clean energy resource.Its burning not only burning comprising solids fraction, also
There is the burning of volatile component in fuel.The direct-fired positive burning of extensive three stone formula burning and bottom air feed top can not be protected
The burning completely of card solids fraction and gaseous component, outstanding behaviours quick cooling after fresh fuel addition causes flameout,
So as to a large amount of poisonous and harmful atmosphere pollutions are by continued emissions, the straight phenomenon for emitting of dense smoke is shown as.
The decoupling combustion device and cofiring burner of research, have been carried out necessarily to conventional combustion device and technology recently
Improvement, preferably resolve that solid fuel ignition efficiency is low and the unstable problem of process, improve to a certain extent solid
The efficiency of combustion of solids fraction in fluid fuel, but when the combustion problem for volatile matter, it is only applicable to that volatile matter is relatively low to be consolidated
Fluid fuel, the fuel of a relatively high for volatile matter is then still present the insufficient problem of burning.The solids fraction of solid fuel
And volatilization(Can gaseous state)The ratio of component has a great otherness, and wherein volatile matter is accounted between 4% ~ 90% scope.Volatilization
Point imperfect combustion, will directly produce the harmful substances such as a large amount of coal tar, polycyclic aromatic hydrocarbon and carbon black, to atmospheric environment and
Health causes to have a strong impact on.
The content of the invention
It is an object of the invention to provide a kind of solid fuel staged combustion device and its staged-combustion method, root of the present invention
Include solids fraction and the class burning feature of gaseous component two according to solid fuel ignition, it is special with reference to solid-state burning and gas burning
Property, solid fuel classification treatment combustion method is devised, functional areas clearly differentiation and science burning are realized in burner
Principle, classification realizes the burning completely of solids fraction and gaseous component in solid fuel, truly realize energy-conservation
The effect of emission reduction.
The purpose of the present invention is achieved through the following technical solutions:
A kind of solid fuel staged combustion device, described device includes Bunker and solid-state combustion parts, gaseous combustion portion
Divide, be classified air feed part and multigroup fire grate part;Bunker and solid-state combustion parts include charging aperture, newly fuel from top to bottom
Layer, dry thermal cracking layer and solid-state burning zone;Gaseous combustion part is located at the Bunker and solid-state combustion parts side, and it is under
And above include air-breathing contraction section, mixed pyrolysis section and diffuser;Classification air feed part include the one-level air feed of bottom and with gas
State combustion parts connected two grades of air feeds and three-level air feed;Multigroup fire grate includes being located at solid-state burning zone bottom and one-level air feed top
The italic fire grate and horizontal fire grate and the fixed grate positioned at the bottom of gas combustion part height identical with horizontal fire grate in portion.
A kind of described solid fuel staged combustion device, solid-state burning zone side in the Bunker and solid-state combustion parts
Side is directly connected to air-breathing contraction section, and its thickness is suitable with air-breathing contraction section height;Dry thermal cracking layer is immediately on solid-state burning zone
Portion, its thickness is suitable with solid-state burning zone thickness;Positioned at dry thermal cracking layer top, its thickness no requirement (NR) is only needed new layer of fueling
Reach charging aperture;Charging aperture be located at newly fuel a layer top, position is not limited only to just go up, also can side or angle, only need satisfaction
Feed to Bunker.
A kind of described solid fuel staged combustion device, the gas combustion part is venturi burner, and mixing is split
Solution section is cylinder mixing tube, and its diameter is suitable with length, and length is not less than 10cm;Air-breathing contraction section is located under mixed pyrolysis section
Face, and close to solid-state burning zone side, its width have to be larger than mixed tube diameter, highly be not less than 0.6 times of mixing length of tube,
Also it is not above mixing 1.5 times of length of tube, its contraction mouth is located at mixing tube lower end, is around provided with two grades of air feed air outlets;
Diffuser is located at mixed pyrolysis section above, and its width have to be larger than mixed tube diameter, highly be not less than mixing length of tube, its diffusion
Mouth is located at mixing tube upper end, and surrounding installs three-level air feed air outlet, and its top is connected with heat transmission equipment.
A kind of described solid fuel staged combustion device, the air feed parts at different levels in the classification air feed part are only each other
It is vertical, and can individually adjust, and use after every grade of air feed is preheated, so as to the clean and effective for realizing different solid fuels fires
Burn.Wherein one-level air feed, below the Bunker and solid-state combustion parts homonymy, including air inlet and air intake passage
(That is the first Slag Room);Two grades of air feeds are arranged on solid-state burning zone lower periphery, and air inlet is located at body of heater front, and passage bypasses stove
Gaseous combustion part is directly reached behind body front and both sides, the lower air intake passage with mixing tube periphery is connected;Three-level air feed is installed
Around in the middle part of the solid-state burning zone, close to secondary intake adit upside, air inlet is located at body of heater front, and passage bypasses body of heater front
And gaseous combustion part is directly reached behind both sides, the upper air inlet passage with mixing tube periphery is connected.
A kind of described solid fuel staged combustion device, multigroup fire grate part, italic fire grate is Double-layered movable stove
Row, distance is not less than 3cm between bilayer, and grate surface and body of heater front form angle and be located between 0 ~ 90 degree, fire grate upper strata lower end
Identical height is in horizontal fire grate, and is only existed compared with small gap(Generally no greater than 2cm);Horizontal fire grate is Double-layered movable stove
Row, distance is not less than 3cm between bilayer, and one section of fire grate and italic fire grate one end are close to, the other end and the first Slag Room and second
Partition wall is close to two ends gap is not more than 2cm between Slag Room;Fixed grate is single layer fixed fire grate, installed in the second scarfing cinder
Room top, below air-breathing contraction section, its span is directly connected with body of heater rear wall and Slag Room next door.
Described a kind of solid fuel staged combustion device, after the air feed parts at different levels of the classification air feed part preheat
Use, wherein one-level air feed can be heated tentatively into the first Slag Room, then reach double grate intermediate layer, further high temperature adds
Heat, finally reaches solid-state burning zone;After two grades of air feeds enter two grades of intake adits, its passage is only only around the solid-state burning of high temperature
Layer, so as to be heated by radiation, then reaches the mixed pyrolysis section of venturi burner, can further be heated, so as to reach directly
Combustion-supporting temperature;After three-level air feed enters three-level intake adit, its passage only only around the solid-state burning zone of high temperature, so as to by spoke
Penetrate and heat, then reach the mixed pyrolysis section of venturi burner, can further be heated, so as to reach directly combustion-supporting high temperature.
A kind of solid fuel staged-combustion method, the described method comprises the following steps:
1)New to fuel arrival dry thermal cracking layer, solid fuel is dried and goes volatile matter process, realizes fixed carbon with volatilization
Point separation, the dry thermal cracking floor height temperature time gaseous state thing such as the larger coal tar of the volatile matter material polymolecular amount that is pyrolyzed out and hydro carbons
Matter, the fixed carbon isolated be in solid fuel under dry thermal cracking floor height temperature not volatile solids fraction, that is, realize
The separation of two big combustible components in solid fuel;
2)Step 1)After the solid combustible component isolated enters solid-state burning zone, richness is carried out under an air feed effect after preheat
Abundant burning under the conditions of oxygen is until after-flame;
3)Step 1)Isolate gaseous material under suction function by high-temperature solid burning zone, carry out the macromoleculars such as coal tar
Material is tentatively cracked, the excess air mixed combustion of the material such as hydro carbons and hydrogen of its small molecular and First air, maintains gaseous state
Fuel element high temperature and transfer fire;
4)Step 3)The small-molecule substance of generation and the macromolecular substances not cracked completely enter text under chimney suction function
Burner contraction section in mound, further mixes with Secondary Air after preheating, and subsequently entering mixed pyrolysis section carries out eddying motion mixing
Burning, realizes the abundant cracking of the macromoleculars such as coal tar, and the carrying out of small-molecule substance is burnt and maintain the continuity of thermal-flame;
5)Step 4)Combustible and combustion product after cracking reach diffuser, due to a large amount of consumption burnt to oxygen,
And the great amount of carbon dioxide for producing breaks up as multiple broken small air mass fuel gas, to ensure combustible gas in these small air mass
The abundant burning of body, the air after third time is preheated must be accorded to supplement, finally realize the burning completely of gaseous component.
Advantages of the present invention is with effect:
The present invention preferably synchronously cannot solve fuel during solid fuel ignition in solids fraction and gaseous component height
Effect cleaning combustion problem, according to solid fuel ignition feature, with reference to solid-state burning and gas combustion characteristics, there is provided one kind can be with
Classification realizes the solid fuel staged combustion device for burning completely and method of solids fraction and gaseous component in solid fuel.
Solid fuel staged combustion device of the invention has clearly divided the functional areas of solid fuel ignition, it will be apparent that set
Solid fuel storehouse, dry thermal cracking layer, solid-state burning zone and gaseous state venturi burner etc. have been put, the sustainable supply of fuel has been ensured,
The steady of fuel dryer pyrolysis is carried out, the burning completely of solids fraction, and the multistage of gaseous state volatile component cracks and fire completely
Burn, it is achieved thereby that the steady high-efficiency cleaning burning of solid fuel.
Solid fuel staged combustion device of the invention and method can realize the high-efficiency cleaning burning of all kinds of solid fuels,
Realize energy-saving and emission-reduction truly and still fired using solids such as coal, stalk, fuel woods at present using safety, or the whole world
3,000,000,000 populations of material culinary art and heating provide high-efficiency cleaning and the burner and combustion method using safety, improve regional atmospheric
And human settlement, lifting human health level and extension life-span.
Brief description of the drawings
Fig. 1 is the structural representation of solid fuel staged combustion device of the invention;
Fig. 2 are the forward sight structure chart of solid fuel staged combustion device of the invention;
Fig. 3 are the venturi burner structure schematic diagram of solid fuel staged combustion device of the invention.
Specific embodiment
The present invention is described in detail for illustrated embodiment below in conjunction with the accompanying drawings.
Reference is:1st, Bunker and solid-state combustion parts, 2, gaseous combustion part, 3, classification air feed part, 4, many
Group fire grate part, 5, Slag Room, 6, heat transmission equipment, 1.1, charging aperture, 1.2, newly fuel layer, 1.3, dry thermal cracking layer, 1.4,
Solid-state burning zone, 2.1, air-breathing contraction section, 2.2, mixed pyrolysis section, 2.3, diffuser, 3.1, one-level air feed, 3.2, two grades of confessions
Wind, 3.3, three-level air feed, 4.1, italic fire grate, 4.2, horizontal fire grate, 4.3, fixed grate, the 5.1, first Slag Room, 5.2,
Two Slag Rooms.
It should be noted that:In description of the invention, term " " center ", " on ", D score, "left", "right", " vertical ", " water
It is flat ", " interior ", the orientation of the instruction such as " outward " or position relationship be based on orientation shown in the drawings or position relationship, merely to just
Described in the description present invention and simplifying, rather than indicate imply signified device or element must have specific orientation, with
Specific azimuth configuration and operation, therefore be not considered as limiting the invention.Additionally, term " first ", " second ", "
Three " it is only used for describing purpose, and it is not intended that indicating or implying relative importance.Unless otherwise clearly defined and limited,
Term " installation ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected,
Or be integrally connected;Can mechanically connect, or electrically connect;Can be joined directly together, it is also possible to by intermediary
It is indirectly connected to, can is two connections of element internal.For the ordinary skill in the art, can be managed with concrete condition
Solve above-mentioned term concrete meaning in the present invention.
Fig. 1 and Fig. 2 are the structural representation of solid fuel staged combustion device of the invention and face structure chart, and burning is filled
Put and mainly include Bunker and solid-state combustion parts 1, gaseous combustion part 2, classification air feed part 3 and multigroup fire grate part 4.Its
Middle Bunker and solid-state combustion parts 1 are followed successively by charging aperture 1.1, newly fuel 1.3 and of layer 1.2, dry thermal cracking layer from top to bottom
Solid-state burning zone 1.4;The gaseous combustion part 2 is located at the Bunker and the side of solid-state combustion parts 1, and it is wrapped from bottom to top
Include air-breathing contraction section 2.1, mixed pyrolysis section 2.2 and diffuser 2.3;Multigroup fire grate 4 includes being located at solid-state burning zone bottom
With the italic fire grate 4.1 and horizontal fire grate 4.2 at the top of one-level air feed and positioned at the bottom of gas combustion part and horizontal fire grate
4.2 mutually level fixed grates 4.3;The classification air feed part 3 includes the one-level air feed 3.1 and and gaseous combustion of bottom
Part 2 connected two grades of air feeds 3.2 and three-level air feed 3.3;
The side of solid-state burning zone 1.4 is directly connected to air-breathing contraction section 2.1 in Bunker and solid-state combustion parts 1, its thickness with
The height of air-breathing contraction section 2.1 is quite;The immediately top of solid-state burning zone 1.4 of dry thermal cracking layer 1.3, its thickness and solid-state burning zone
1.4 thickness are suitable;Positioned at 1.3 top of dry thermal cracking layer, its thickness no requirement (NR) only need to reach charging aperture to new layer 1.2 of fueling
1.1;Charging aperture be located at newly fuel a layer top, position is not limited only to just go up, also can side or angle, only need to meet charging to combustion
Feed bin.
Fig. 3 are that the venturi burner structure of the gas combustion part 2 of solid fuel staged combustion device of the invention shows
It is intended to, air-breathing contraction section 2.1 is directly connected to the side of solid-state burning zone 1.4 in Bunker and solid-state combustion parts 1, mixed pyrolysis
Section 2.2 and diffuser are displaced upward successively.Wherein mixed pyrolysis section 2.2 is cylinder mixing tube, and its diameter is suitable with length, length
Not less than 10cm;Air-breathing contraction section 2.1 is located at below mixed pyrolysis section 2.2, and close to the side of solid-state burning zone 1.4, its width
The diameter of mixing tube 2.2 is have to be larger than, 0.6 times of the length of mixing tube 2.2 is highly not less than, the length of mixing tube 2.2 is also not above
1.5 times, its contraction mouth be located at mixing tube lower end, two grades of air outlets of air feed 3.2 are around installed;Diffuser 2.3 is located at mixing
Above cracking section 2.2, its width have to be larger than mixed tube diameter, highly be not less than mixing length of tube, and its diffusion mouthful is located at mixing
Pipe upper end, surrounding installs the air outlet of three-level air feed 3.3.
According to Fig. 1, Fig. 2 and Fig. 3, the air feed parts at different levels in the classification air feed part 3 are independent of one another, and can be independent
Regulation, and use after every grade of air feed is preheated, so as to the clean and effective for realizing different solid fuels burns.Wherein one-level air feed
3.1, below the Bunker and the homonymy of solid-state combustion parts 1, including air inlet and air intake passage(That is the first Slag Room
5.1);Two grades of air feeds 3.2 are arranged on the lower periphery of solid-state burning zone 1.4, and air inlet is located at body of heater front, and passage is bypassing body of heater just
Gaseous combustion part 2 is directly reached behind face and both sides, the lower air intake passage with the periphery of mixing tube 2.2 is connected;Three-level air feed 3.3 is pacified
Around the middle part of solid-state burning zone 1.4, close to the passage of secondary air feed 3.2 upside, air inlet is located at body of heater front, and passage is bypassed
Gaseous combustion part is directly reached behind body of heater front and both sides, the upper air inlet passage with the periphery of mixing tube 2.2 is connected.
Solid fuel staged combustion device of the invention, multigroup fire grate part 4, italic fire grate 4.1 is Double-layered movable fire grate,
Distance is not less than 3cm between bilayer, and grate surface and body of heater front form angle and be located between 0 ~ 90 degree, the upper strata lower end of fire grate 4.1
Identical height is in horizontal fire grate 4.2, and is only existed compared with small gap(Generally no greater than 2cm);Horizontal fire grate 4.2 is double-deck living
Dynamic fire grate, distance is not less than 3cm between bilayer, and one section of fire grate and italic fire grate one end are close to, the other end and the first Slag Room 5.1
And second partition wall between Slag Room 5.2 close to two ends gap is not more than 2cm;Fixed grate 4.3 is single layer fixed fire grate, peace
Mounted in the top of the second Slag Room 5.2, below air-breathing contraction section 2.1, its span directly connects with body of heater rear wall and Slag Room next door
Connect.
Solid fuel staged combustion device of the invention, the air feed parts at different levels of classification air feed part 3 use after preheating,
Wherein one-level air feed 3.1 can be heated tentatively into the first Slag Room 5.1, then reach double grate intermediate layer, further high temperature
Heating, finally reaches solid-state burning zone 1.4;After two grades of air feeds 3.2 enter two grades of intake adits, its passage is only only around high temperature
Solid-state burning zone, so as to be heated by radiation, then reaches the mixed pyrolysis section of venturi burner, can further be heated, so that
Reach directly combustion-supporting temperature;After three-level air feed 3.3 enters three-level intake adit, its passage is only only around the solid-state burning of high temperature
Layer, so as to be heated by radiation, then reaches the mixed pyrolysis section of venturi burner, can further be heated, so as to reach directly
Combustion-supporting high temperature.
Combustion method of the present invention based on solid fuel staged combustion device, comprises the following steps:
1)New to fuel arrival dry thermal cracking layer, solid fuel is dried and goes volatile matter process, realizes fixed carbon with volatilization
Point separation, the dry thermal cracking floor height temperature time gaseous state thing such as the larger coal tar of the volatile matter material polymolecular amount that is pyrolyzed out and hydro carbons
Matter, the fixed carbon isolated be in solid fuel under dry thermal cracking floor height temperature not volatile solids fraction, that is, realize
The separation of two big combustible components in solid fuel;
2)Step 1)After the solid combustible component isolated enters solid-state burning zone, enter from bottom air feed mouthful in an air feed,
Then by rapidly pre-warming after wearing between double-layer grate, solid-state burning zone is reached so that solids fraction realizes filling under excess oxygen
Divided combustion is until after-flame;So as to reduce the generation of CO in solids fraction combustion process to greatest extent;
3)Step 1)Isolate gaseous material under suction function by high-temperature solid burning zone, carry out the macromoleculars such as coal tar
Material is tentatively cracked, the excess air mixed combustion of the material such as hydro carbons and hydrogen of its small molecular and First air, maintains gaseous state
Fuel element high temperature and transfer fire;
4)Step 3)The small-molecule substance of generation and the macromolecular substances not cracked completely enter text under chimney suction function
Burner contraction section in mound, further mixes with Secondary Air after preheating, and subsequently entering mixed pyrolysis section carries out eddying motion mixing
Burning, realizes the abundant cracking of the macromoleculars such as coal tar, and the carrying out of small-molecule substance is burnt and maintain the continuity of thermal-flame;
5)Step 4)Combustible and combustion product after cracking reach diffuser, due to a large amount of consumption burnt to oxygen,
And the great amount of carbon dioxide for producing can be broken up as multiple small air mass fuel gas, to ensure the abundant of these fuel gas
Burning, third time preheat after air must be appropriate give and supplement, finally realize the burning completely of gaseous component;So as to real
The high-efficiency cleaning burning of volatile components in solid fuel is realized, the very big emission reduction of pollutant is realized.
Finally it should be noted that:Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations;To the greatest extent
Pipe has been described in detail with reference to foregoing embodiments to the present invention, it will be understood by those within the art that:Its according to
The technical scheme described in foregoing embodiments can so be modified, or which part or all technical characteristic are entered
Row equivalent;And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology
The scope of scheme.
Claims (7)
1. a kind of solid fuel staged combustion device, it is characterised in that described device includes Bunker and solid-state combustion parts
(1), gaseous combustion part(2), classification air feed part(3)With multigroup fire grate part(4);Bunker and solid-state combustion parts(1)
Include charging aperture from top to bottom(1.1), newly fuel layer(1.2), dry thermal cracking layer(1.3)With solid-state burning zone(1.4);Gaseous state
Combustion parts(2)Positioned at the Bunker and solid-state combustion parts(1)Side, it includes air-breathing contraction section from bottom to top(2.1)、
Mixed pyrolysis section(2.2)And diffuser(2.3);Classification air feed part(3)One-level air feed including bottom(3.1)And and gaseous state
Combustion parts(2)Two grades of connected air feeds(3.2)With three-level air feed(3.3);Multigroup fire grate(4)Including positioned at solid-state burning zone bottom
Italic fire grate at the top of portion and one-level air feed(4.1)With horizontal fire grate(4.2)And positioned at the bottom of gas combustion part and water
Plain grate(4.2)Mutually level fixed grate(4.3).
2. a kind of solid fuel staged combustion device according to claim 1, it is characterised in that the Bunker and solid-state
Combustion parts(1)Middle solid-state burning zone(1.4)Side and air-breathing contraction section(2.1)It is directly connected to, its thickness and air-breathing contraction section
(2.1)Height is quite;Dry thermal cracking layer(1.3)Immediately solid-state burning zone(1.4)Top, its thickness and solid-state burning zone(1.4)
Thickness is suitable;Newly fuel layer(1.2)Positioned at dry thermal cracking layer(1.3)Top, its thickness no requirement (NR) only need to reach charging aperture
(1.1);Charging aperture be located at newly fuel a layer top, position is not limited only to just go up, also can side or angle, only need to meet feed extremely
Bunker.
3. a kind of solid fuel staged combustion device according to claim 1, it is characterised in that the gas combustion part
(2)It is venturi burner, mixed pyrolysis section(2.2)It is cylinder mixing tube, its diameter is suitable with length, and length is not less than
10cm;Air-breathing contraction section(2.1)Positioned at mixed pyrolysis section(2.2)Below, and close to solid-state burning zone(1.4)Side, its width
Have to be larger than mixing tube(2.2)Diameter, is highly not less than mixing tube(2.2)0.6 times of length, is also not above mixing tube
(2.2)1.5 times of length, its contraction mouth is located at mixing tube lower end, is around provided with two grades of air feeds(3.2)Air outlet;Diffuser
(2.3)Positioned at mixed pyrolysis section(2.2)Above, its width have to be larger than mixed tube diameter, highly be not less than mixing length of tube, its
Diffusion mouthful is located at mixing tube upper end, and surrounding installs three-level air feed(3.3)Air outlet, its top and heat transmission equipment(6)Connection.
4. a kind of solid fuel staged combustion device according to claim 1, it is characterised in that the classification air feed part
(3)In air feed parts at different levels independently of one another, and can individually adjust, and use after every grade of air feed is preheated, so as to realize
The clean and effective burning of different solid fuels;Wherein one-level air feed(3.1), installed in the Bunker and solid-state combustion parts
(1)Below homonymy, including air inlet and air intake passage(That is the first Slag Room(5.1));Two grades of air feeds(3.2)Installed in solid-state combustion
Burn layer(1.4)Lower periphery, air inlet is located at body of heater front, and passage directly reaches gaseous combustion after bypassing body of heater front and both sides
Part(2), with mixing tube(2.2)The lower air intake passage of periphery is connected;Three-level air feed(3.3)Installed in solid-state burning zone(1.4)
Around middle part, close to secondary air feed(3.2)Passage upside, air inlet is located at body of heater front, and passage bypasses body of heater front and both sides
Gaseous combustion part is directly reached afterwards, with mixing tube(2.2)The upper air inlet passage of periphery is connected.
5. a kind of solid fuel staged combustion device according to claim 1, it is characterised in that multigroup fire grate part
(4), italic fire grate(4.1)It is Double-layered movable fire grate, distance is not less than 3cm between bilayer, grate surface forms angle with body of heater front
Degree is located between 0 ~ 90 degree, fire grate(4.1)Upper strata lower end and horizontal fire grate(4.2)In identical height, and only exist compared with crack
Gap(Generally no greater than 2cm);Horizontal fire grate(4.2)It is Double-layered movable fire grate, distance is not less than 3cm, one section of fire grate between bilayer
With italic fire grate one end close to, the other end and the first Slag Room(5.1)With the second Slag Room(5.2)Between partition wall close to two
End gap is not more than 2cm;Fixed grate(4.3)It is single layer fixed fire grate, installed in the second Slag Room(5.2)Top, air-breathing is received
Contracting section(2.1)Below, its span is directly connected with body of heater rear wall and Slag Room next door.
6. a kind of solid fuel staged combustion device according to claim 1, it is characterised in that the classification air feed part
(3)Air feed parts at different levels preheat after use, wherein one-level air feed(3.1)Into the first Slag Room(5.1)Can tentatively be added
Heat, then reaches double grate intermediate layer, and further high-temperature heating finally reaches solid-state burning zone(1.4);Two grades of air feeds(3.2)
Into after two grades of intake adits, its passage, so as to be heated by radiation, then reaches literary mound only only around the solid-state burning zone of high temperature
In burner mixed pyrolysis section, can further be heated, so as to reach directly combustion-supporting temperature;Three-level air feed(3.3)Into three
After level intake adit, its passage, so as to be heated by radiation, then reaches venturi burner only only around the solid-state burning zone of high temperature
Mixed pyrolysis section, can further be heated, so as to reach directly combustion-supporting high temperature.
7. a kind of solid fuel staged-combustion method, it is characterised in that the described method comprises the following steps:
1)New to fuel arrival dry thermal cracking layer, solid fuel is dried and goes volatile matter process, realizes fixed carbon with volatilization
Point separation, the dry thermal cracking floor height temperature time gaseous state thing such as the larger coal tar of the volatile matter material polymolecular amount that is pyrolyzed out and hydro carbons
Matter, the fixed carbon isolated be in solid fuel under dry thermal cracking floor height temperature not volatile solids fraction, that is, realize
The separation of two big combustible components in solid fuel;
2)Step 1)After the solid combustible component isolated enters solid-state burning zone, richness is carried out under an air feed effect after preheat
Abundant burning under the conditions of oxygen is until after-flame;
3)Step 1)Isolate gaseous material under suction function by high-temperature solid burning zone, carry out the macromoleculars such as coal tar
Material is tentatively cracked, the excess air mixed combustion of the material such as hydro carbons and hydrogen of its small molecular and First air, maintains gaseous state
Fuel element high temperature and transfer fire;
4)Step 3)The small-molecule substance of generation and the macromolecular substances not cracked completely enter text under chimney suction function
Burner contraction section in mound, further mixes with Secondary Air after preheating, and subsequently entering mixed pyrolysis section carries out eddying motion mixing
Burning, realizes the abundant cracking of the macromoleculars such as coal tar, and the carrying out of small-molecule substance is burnt and maintain the continuity of thermal-flame;
5)Step 4)Combustible and combustion product after cracking reach diffuser, due to a large amount of consumption burnt to oxygen,
And the great amount of carbon dioxide for producing breaks up as multiple broken small air mass fuel gas, to ensure combustible gas in these small air mass
The abundant burning of body, the air after third time is preheated must be accorded to supplement, finally realize the burning completely of gaseous component.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201611107749.1A CN106753478B (en) | 2016-12-06 | 2016-12-06 | Solid fuel staged combustion device and staged combustion method thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201611107749.1A CN106753478B (en) | 2016-12-06 | 2016-12-06 | Solid fuel staged combustion device and staged combustion method thereof |
Publications (2)
Publication Number | Publication Date |
---|---|
CN106753478A true CN106753478A (en) | 2017-05-31 |
CN106753478B CN106753478B (en) | 2022-07-29 |
Family
ID=58879031
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201611107749.1A Expired - Fee Related CN106753478B (en) | 2016-12-06 | 2016-12-06 | Solid fuel staged combustion device and staged combustion method thereof |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN106753478B (en) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101270875A (en) * | 2007-03-19 | 2008-09-24 | 中国科学院过程工程研究所 | Biomass shaping fuel decoupling combustion device and combustion method thereof |
CN101650025A (en) * | 2008-08-15 | 2010-02-17 | 中国科学院过程工程研究所 | Decoupling combustion furnace and decoupling combustion method |
CN101805638A (en) * | 2010-04-06 | 2010-08-18 | 山东省科学院能源研究所 | Biomass gasification method |
WO2013041039A1 (en) * | 2011-09-24 | 2013-03-28 | Liu Weiqi | Macromolecular matter clean burning method and device |
CN103486572A (en) * | 2013-09-26 | 2014-01-01 | 长沙理工大学 | Low NOx fuel gas burner based on venturi tubes |
CN206337217U (en) * | 2016-12-06 | 2017-07-18 | 殷秀峰 | A kind of solid fuel staged combustion device |
-
2016
- 2016-12-06 CN CN201611107749.1A patent/CN106753478B/en not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101270875A (en) * | 2007-03-19 | 2008-09-24 | 中国科学院过程工程研究所 | Biomass shaping fuel decoupling combustion device and combustion method thereof |
CN101650025A (en) * | 2008-08-15 | 2010-02-17 | 中国科学院过程工程研究所 | Decoupling combustion furnace and decoupling combustion method |
CN101805638A (en) * | 2010-04-06 | 2010-08-18 | 山东省科学院能源研究所 | Biomass gasification method |
WO2013041039A1 (en) * | 2011-09-24 | 2013-03-28 | Liu Weiqi | Macromolecular matter clean burning method and device |
CN103486572A (en) * | 2013-09-26 | 2014-01-01 | 长沙理工大学 | Low NOx fuel gas burner based on venturi tubes |
CN206337217U (en) * | 2016-12-06 | 2017-07-18 | 殷秀峰 | A kind of solid fuel staged combustion device |
Also Published As
Publication number | Publication date |
---|---|
CN106753478B (en) | 2022-07-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN109539243B (en) | A kind of system and method for biomass fuel and the mixed combustion of semicoke | |
CN104315502B (en) | A kind of biomass low temperature pre-burning low volatile low-grade coal low NOx combustion apparatus | |
CN104748125A (en) | Pyrolysis volatile matter combustion system | |
CN202382242U (en) | Conical porous medium combustor applicable to biomass gasification gas | |
CN206337217U (en) | A kind of solid fuel staged combustion device | |
CN105276583A (en) | Mixed combustion device and combustion equipment utilizing same | |
CN204574124U (en) | A kind of environmental protection cooking and heating furnace of the pluralities of fuel that can burn | |
CN204187609U (en) | The low NO of a kind of living beings low temperature pre-burning low volatile low-grade coal xburner | |
CN202382404U (en) | Biomass atmospheric pressure hot water boiler | |
CN101169241A (en) | Combustion apparatus for r.p.f boiler | |
CN106168373A (en) | Environment protection energy-saving efficient gasification boiler | |
CN106753478A (en) | A kind of solid fuel staged combustion device and its staged-combustion method | |
CN103773506B (en) | Double-cracking integrated furnace for biomasses | |
CN108180476A (en) | A kind of combustion system for being electrolysed HHO fuel | |
CN205939273U (en) | Alcohol base liquid fuel kitchen | |
CN208074948U (en) | A kind of combustion system of electrolysis HHO fuel | |
CN208073638U (en) | A kind of fuel combustion combustion-supporting system improving fuel economy | |
CN106382623A (en) | New-energy intelligent double-rotation boiler | |
CN206291232U (en) | A kind of negative pressure is ignited separator | |
CN202074509U (en) | Gas-solid two-phase series-parallel ignition stabilizing burner for coal difficult to burn | |
CN108361684B (en) | High-temperature smokeless boiler and combustion method | |
CN205856405U (en) | The gasification of biomass Poly-generation of a kind of low emission fires device again | |
CN201318857Y (en) | Energy-saving environment-friendly grain drying device | |
CN105114992B (en) | One kind is camped fuel oil warming stove | |
CN106047417A (en) | Low-emission biomass gasification poly-generation reburning device and technology |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
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: 20220729 |