CN101893234B - Biomass boiler capable of realizing combined combustion of synthesis gas and semicoke - Google Patents

Biomass boiler capable of realizing combined combustion of synthesis gas and semicoke Download PDF

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Publication number
CN101893234B
CN101893234B CN2010102399732A CN201010239973A CN101893234B CN 101893234 B CN101893234 B CN 101893234B CN 2010102399732 A CN2010102399732 A CN 2010102399732A CN 201010239973 A CN201010239973 A CN 201010239973A CN 101893234 B CN101893234 B CN 101893234B
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boiler
biomass
synthesis gas
living beings
chamber
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CN2010102399732A
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Chinese (zh)
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CN101893234A (en
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李炳熙
李洪涛
张亚宁
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哈尔滨工业大学
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/10Process efficiency

Abstract

The invention provides a biomass boiler capable of realizing combined combustion of synthesis gas and semicoke and relates to the biomass boiler. The biomass boiler aims to solve the problem that the conventional biomass boiler does not take the influences of semicoke yield on combustion efficiency into consideration and therefore causes increased heat loss due to imperfect combustion and reduces the heat efficiency of the biomass boiler. A semicoke combustor is arranged between a biomass vaporizing chamber and the main body of the boiler; the semicoke combustor is communicated with a hearth; one end of a synthesis gas outlet pipe is communicated with the inner cavity of the biomass vaporizing chamber through a synthesis gas outlet, and the other end of the synthesis gas outlet pipe is communicated with the hearth; a storage bin is arranged above the biomass vaporizing chamber and the semicoke combustor; a biomass fuel in the storage bin enters the biomass vaporizing chamber through a primary feeder; and the biomass fuel in the storage bin enters the semicoke combustor through a secondary feeder. The biomass boiler is suitable for combusting biomass fuels of various particle sizes and greatly improves combustion efficiency.

Description

A kind of biomass boiler of realizing synthesis gas and semicoke combined combustion

Technical field

The present invention relates to a kind of biomass boiler, be specifically related to a kind of biomass boiler of realizing synthesis gas and semicoke combined combustion, belong to the biomass boiler technical field.

Background technology

Biomass energy is a kind of regenerative resource that derives from solar energy, also is one of human use's energy the earliest, has wide, renewable, the advantages such as cost is low, low pollution that distribute.But, make its application efficiency very low because the energy density of biomass energy is low.Therefore, in daily life and industrial production not by large-scale application.Along with energy shortage, ecological deterioration, make people pay close attention to application study again to biomass energy.

In modern biomass energy application technology, mainly comprise: biochemical transformation method and heat chemistry method for transformation.Wherein, thermochemical method is easier to scale and industrialization.Thermochemical method can be divided into three kinds of means substantially: directly burning, pyrolysis and gasification.The same solid fuel that belongs to of living beings with coal, but with the coal facies ratio, its H/C is more higher than relatively, so the volatile matter height; Fixed carbon is few, and oxygen content height, calorific value are just low than general coal; In addition, its content of ashes is low, and elements such as nitrogen, sulphur are few: and the activity of fixed carbon has been howed than the coal height; These factors have determined living beings to be more suitable in gasification.But the content of biomass fuel semicoke differs greatly, and for the lower biomass fuel of semicoke content, can directly adopt gasification mode, and high biomass fuel such as the rice husk of semicoke content then needs to adopt the grate firing combustion system.

Compare with fire coal, biomass fuel proportion is little, and pyrolysis rate is fast, and the biomass fuel that semicoke content is low can not form stable fire bed on the fire grate upper strata; Secondly, part biological matter fuel has higher tar content, the flue gas that produces is than thickness, both easily went up coking at high temperature pipe (superheater etc.), the corrosion pipe also reduces heat exchange efficiency simultaneously, the flue gas of thickness is easily knotted at narrower flue place again, influences the proper flow of flue gas, reduces the heat exchange efficiency of boiler; Moreover the calorific value of biomass fuel is lower, moisture is big, after-flame is difficult.These defectives at the biomass fuel existence, people have carried out certain improvement to boiler, as the present inventor number was in " the biomass-burning fluidized-bed combustion boiler " of CN2248290Y at patent announcement once, a kind of boiler of the various biomass fuels that can burn is disclosed, it only adopts general fluidization, though considered the combustion characteristics of biomass fuel preferably, the thermal efficiency can reach more than 80%, but still is easy to the high temperature convection heating surface generation slagging scorification at furnace outlet.Patent announcement number is in " a kind of biological mass-energy fuel boiler and the combustion method thereof " of CN1900589A for " variable furnace arch structure low NOx biomass boiler " and the publication number of CN1195173C, the former discloses and the feeding auger has been installed in the feed pipe of boiler and is increased variable arch structure and the segmentation wind nozzle that links to each other with main air duct in burner hearth, this to biomass fuel catch fire and after-flame certain help is arranged, but its combustion system is a grate firing still, does not reach the best combustion effect; The latter discloses has increased the secondary air channel that links to each other with pressure fan below the material inlet of boiler, its combustion system is grate firing and suspension combustion to a certain degree, but still based on grate firing, and secondary wind is the cold wind of normal temperature, temperature fluctuation is bigger in the stove, suppress ash particle and entered next combustion zone, can not realize sufficient burning.In other words, living beings adopt gasification furnace, because temperature of reactor is lower, tar content is very high in the gasification gas; Biomass direct-combustion boiler is then because behind the biomass combustion, ash fusion point is lower, is easy in high-temperature surface generation slagging scorification phenomenon.In the patent No. is in " biomass fuel boiler " of CN201053749Y, a kind of improved design on the basis of former coal-burning boiler is disclosed, utilize the effect of wind and secondary wind and air port controllable register, realization is the mode of assisting based on suspension combustion, grate firing, guaranteed the safety of heat exchange efficiency and feed bin to a certain extent, but, be easy in high-temperature surface generation slagging scorification accident, and then cause boiler " booster " accident because the biomass fuel fusion point of ash is low.Patent announcement number is CN201074829Y " a kind of biomass briquette gasification boiler ", body of heater adopts the structure that the air quantity distributing pipe is set in the body have the stove baking and power feed device and the body of heater chuck, because of it does not adopt steam added combustion equipment, so fuel gases calorific value is low, there is the difficult problem of tar decomposition aspect, thereby reduced boiler efficiency.Patent announcement number for " biomass gasification boiler " of CN201093717Y be a kind of be the general boiler of fuel with the biomass material, it does not adopt the steam added combustion device yet, so fuel gases calorific value is low, occurs in the smoke evacuation undecomposed tar completely being arranged easily.Patent announcement number is " biomass high temperature combustion boiler " of two same technology contents of CN100513869C and CN201149245Y, comprise the furnace wall, flue and be arranged on the hopper that has feed arrangement of pot courage top and slag tap pond etc., primary structure is: in the flue by by motor-driven rotating shaft and fix helical blade on it and feed arrangement that the fuel uniform board is formed, by flue, preheating chamber and combustion chamber that the segmentation wind nozzle of radiation baffle and below is formed are by cyclone dust collectors, the flue gas lime-ash discharger in smoke pipe and slag tap pond and high-temperature flue gas and water carried out steam generating chamber of heat exchange etc.In flue, obtain tangentially facing upward the high temperature air that injects burner hearth by nozzle sections below the biomass fuel of preheating and the flue and meet, realize the classification swirl flow combustion.But will come strict control excess air coefficient by the quantity of adjusting nozzle, can make that so the interior temperature of stove is wayward, grading effect is undesirable, influences boiler thermal output.Patent announcement number is CN201081236Y " the biomass energy boiler oil is at many combustion chambers internal combustion and steam added combustion burner ", and it discloses and a kind ofly can make the clean-burning boiler that has at many combustion chambers internal combustion and steam added combustion burner of biomass fuel.It comprises parts such as boiler, first combustion chamber and stove baking thereof, second combustion chamber and stove baking, the second combustion chamber secondary wind and steam added combustion burner, vane type feeding machine, the wind inlet in first combustion chamber, fire grate.The secondary wind of this device is supplied with by the vane type feeding machine that is communicated with first combustion chamber, secondary wind is the cold wind of normal temperature, secondary wind is entered by the second combustion chamber secondary wind inlet, cause the fluctuation of temperature in the stove easily, can not control the fuel gasification temperature preferably, increased tar content in the gas that gasifies in second combustion chamber, also made high-temperature surface produce slagging scorification easily.In addition, steam will enter from steam added combustion burner steam inlet, not only to add steam raising plant, increase equipment cost, and the effect of steam is exactly to utilize flame heat that steam is resolved into hydrogen and oxygen, makes combustion of hydrogen, comburant oxygen participates in the stove internal combustion, steam can not participate in fuel gasification, can't make unburnt fixed carbon gasification, has reduced the calorific value of fuel gasification product.

Summary of the invention

The purpose of this invention is to provide a kind of biomass boiler of realizing synthesis gas and semicoke combined combustion, do not consider the influence of char yeild to solve existing biomass boiler to efficiency of combustion, and then cause that imperfect combustion heat loss increases, cause the low problem of the biomass boiler thermal efficiency.

The present invention solves the problems of the technologies described above the technical scheme of taking to be:

A kind of biomass boiler of synthesis gas and semicoke combined combustion of realizing of the present invention comprises that boiler body, traveling-grate stoker, a plurality of air compartment, feed bin, living beings gasification chamber, gasification air compartment and steam enter pipe, and the inner chamber of boiler body is a burner hearth; Described biomass boiler also comprises one-time feeding device, secondary feeding device, coal-char combustion chamber and synthesis gas fairlead; Living beings gasification chamber is arranged at boiler body arrival end place, the coal-char combustion chamber is arranged between living beings gasification chamber and the boiler body, and the coal-char combustion chamber is communicated with burner hearth, traveling-grate stoker is arranged on living beings gasification chamber, coal-char combustion chamber and boiler body three's below, the below that the gasification air compartment is arranged on living beings gasification chamber is used to provide living beings gasification indoor biological fuel combustion required air, steam enters below that pipe is arranged on living beings gasifications chamber, and to be used for that atomizing steam is introduced the living beings gasification indoor, and living beings gasification chamber is used to produce hydrogen, the synthesis gas that methane and carbon monoxide three mix; The sidewall of living beings gasification chamber is provided with the synthesis gas outlet, one end of synthesis gas fairlead is communicated with by the inner chamber of synthesis gas outlet with living beings gasification chamber, the other end of synthesis gas fairlead is communicated with burner hearth, feed bin is arranged at the two top of living beings gasifications chamber, coal-char combustion chamber, it is indoor that biomass fuel in the described feed bin enters the living beings gasification by the one-time feeding device, and it is indoor that the biomass fuel in the described feed bin enters coal-char combustion by the secondary feeding device; Described a plurality of air compartment is arranged in the chain fire-gate below corresponding with burner hearth and is used to provide synthesis gas and coal-char combustion required air in the burner hearth.

Advantage and good effect that the present invention has are: the present invention is owing to adopt the mode firing biomass fuel (two feed arrangement) of secondary feeding, after the one-time feeding machine drops into vaporizer with biomass fuel, control the gasification indoor temperature about 650 ℃ by controlling excess air coefficient and spraying into the water yield, (utilize the heat that the fuel partial combustion is produced in the gasification combustion chamber to make chuck internal layer temperature raise, and the tiny water smoke that atomizer produces, directly contact and produce steam with the internal protecting wall of chuck,) water is sprayed in (in the gasification air compartment) biomass fuel as gasifying agent with the form of wet saturated air, the burning of biomass fuel low temperature gasification, contain higher active alkalinous metal in its ash and can remain in the semicoke, reduced the ash corrosion of boiler heating surface; And other secondary feeding machine, then regulate according to the otherness of living beings, for fugitive constituent height and the low biomass fuel of semicoke content, can not use or crack secondary feeding machine, the biomass fuel low for volatile content and semicoke content is high, then in order to keep the temperature of bed material, standard-sized sheet or drive big one-time feeding machine, because at burner hearth internal combustion temperature height, can be so that the tar completing combustion in the gasification gas, the thermal efficiency that has solved existing biomass boiler existence is low, tar content height in the gasification gas, problems such as the easy slagging scorification of high-temperature surface.The present invention has taked synthesis gas and semicoke combined combustion mode, and (synthesis gas that produces in the air compartment that promptly gasifies is directly introduced burner hearth and is burnt, meanwhile, biomass fuel burns along with traveling-grate stoker enters burner hearth after the semicoke that produces after the gasification air compartment internal combustion burns via the coal-char combustion chamber again, forms gas-gas firing and gas-solid burning associating coupled modes; " gas-gas " is meant " synthesis gas " and " air "; " gas-solid " is meant " synthesis gas " and " semicoke "), can make the thermal efficiency of boiler improve 6%, and also environmental protection again, alleviated environmental pollution, can also carry out twice laid to the living beings ash of collecting.Therefore say that the present invention has improved the path for transformation and the utilization rate of living beings.

Difference according to living beings semicoke content, by regulating the rotating speed of batcher, regulate the ratio of gas-solid burning, thereby improve the biomass energy transformation efficiency, biomass fuel in the described feed bin enters living beings gasification chamber and coal-char combustion chamber respectively by one-time feeding device and secondary feeding device, and biomass fuel is burnt cmpletely.

Design concept of the present invention: the present invention proposes existing biomass boiler and do not consider the influence of char yeild to efficiency of combustion.Living beings are easy to pyrolysis, the volatile content height, and the simple biomass gasification technology of utilizing, gasification gas tar content height, problems such as the easy slagging scorification of high-temperature surface, and semicoke content is when high, the carbon residue particle is failed completing combustion, causes that mechanical imperfect combustion heat loss increases; And design its boiler structure according to brown coal grate firing mode, and then because volatile content is too high, make local hydrocarbon under the condition of anoxic, burn, make carbon content height in the flue gas; And, be difficult to form burning bottom bed material because the living beings ash particle is easily broken.Therefore the present invention is provided with two feed arrangements, and is provided with coal-char combustion chamber 15 separately, and the synthesis gas of generation is directly introduced burner hearth and burnt in the air compartment that will gasify, with the semicoke combined combustion in the burner hearth.

Description of drawings

Fig. 1 is a biomass boiler overall structure schematic diagram of the present invention; Sequence number explanation among the figure: 1-one-time feeding device, 2-secondary feeding device, 3-feed bin, 4-synthesis gas fairlead (coal gas fairlead), 5-cavity (air blanketing), 6-living beings gasification chamber, 7-steam enter pipe, 8-gasification air compartment, 9-first air compartment, 10-second air compartment, 11-first air compartment, 12-the 4th air compartment, 13-secondary wind inlet, 14-except that cinder notch, 15-coal-char combustion chamber, 16-burner hearth, 17-boiler body, 18-traveling-grate stoker.

The specific embodiment

The specific embodiment one: as shown in Figure 1, the described a kind of biomass boiler of synthesis gas and semicoke combined combustion of realizing of present embodiment comprises that boiler body 17, traveling-grate stoker 18, a plurality of air compartment, feed bin 3, living beings gasification chamber 6, gasification air compartment 8 and steam enter pipe 7, and the inner chamber of boiler body 17 is a burner hearth 16; Described biomass boiler also comprises one-time feeding device 1, secondary feeding device 2, coal-char combustion chamber 15 and synthesis gas fairlead 4; Living beings gasification chamber 6 is arranged at boiler body 17 arrival end places, coal-char combustion chamber 15 is arranged between living beings gasification chamber 6 and the boiler body 17, and coal-char combustion chamber 15 is communicated with burner hearth 16, traveling-grate stoker 18 is arranged on living beings gasification chamber 6, coal-char combustion chamber 15 and boiler body 17 threes' below, the below that gasification air compartment 8 is arranged on living beings gasification chamber 6 is used to provide living beings gasification chamber 6 endogenous substance fuel combustion required airs, steam enters the belows that pipe 7 is arranged on living beings gasifications chamber 6 and is used for atomizing steam is introduced in the living beings gasification chamber 6, and living beings gasification chamber 6 is used to produce hydrogen, the synthesis gas that methane and carbon monoxide three mix; The sidewall of living beings gasification chamber 6 is provided with synthesis gas outlet 6-1, one end of synthesis gas fairlead 4 is communicated with the inner chamber of living beings gasification chamber 6 by synthesis gas outlet 6-1, the other end of synthesis gas fairlead 4 is communicated with burner hearth 16, feed bin 3 is arranged at the two top of living beings gasifications chamber 6, coal-char combustion chamber 15, it is indoor that biomass fuel in the described feed bin 3 enters the living beings gasification by one-time feeding device 1, and it is indoor that the biomass fuels in the described feed bin 3 enter coal-char combustion by secondary feeding device 2; The below that described a plurality of air compartment is arranged in the traveling-grate stoker 18 corresponding with burner hearth 16 is used to provide synthesis gas and coal-char combustion required airs in the burner hearth 16.

The specific embodiment two: as shown in Figure 1, the sidewall of the described living beings gasification of present embodiment chamber 6 is provided with the cavity 5 with the sidewall conformal, and described cavity 5 is used to produce atomizing steam.Described cavity 5 is called air blanketing, the chuck that is described living beings gasification chamber is made of inside and outside furnace wall, the centre is an air blanketing, the inboard atomizer that is communicated with water inlet pipe that is provided with of outer furnace wall, water vapour through atomizing sprays in the air blanketing, utilize the heat that the fuel partial combustion is produced in the gasification combustion chamber to make chuck internal layer temperature raise, and the tiny water smoke that atomizer produces, directly contact and produce steam with the internal protecting wall of chuck, water is sprayed in the biomass fuel in the gasification air compartment, to produce synthesis gas as gasifying agent with the form of wet saturated air.Other composition and annexation are identical with the specific embodiment one.

The specific embodiment three: as shown in Figure 1, the described a plurality of air compartments of present embodiment are made of first air compartment 9, second air compartment 10, the 3rd air compartment 11 and the 4th air compartment 12; Described first air compartment 9, second air compartment 10, the 3rd air compartment 11 and the 4th air compartment 12 set gradually along arrival end to the port of export of burner hearth 16.So be provided with, can fully in burner hearth, provide synthesis gas and coal-char combustion required air.Other composition and annexation are identical with the specific embodiment one.

The specific embodiment four: as shown in Figure 1, present embodiment is provided with secondary wind inlet 13 at boiler body 17 rear portions, and described secondary wind inlet 13 is used for providing the burning required air to burner hearth 16, can further improve efficiency of combustion like this.Other composition and annexation are identical with the specific embodiment one, two or three.

The specific embodiment five: as shown in Figure 1, present embodiment is positioned at traveling-grate stoker 18 on boiler body 17 output is provided with except that cinder notch 14.Other composition and annexation are identical with the specific embodiment four.

Operation principle of the present invention:

Biomass fuel in the feed bin of the present invention enters living beings gasification chamber and coal-char combustion chamber respectively by one-time feeding device and secondary feeding device, the chuck of described living beings gasification chamber is made of inside and outside furnace wall, the inboard atomizer that is communicated with water inlet pipe that is provided with of outer furnace wall, the saturated air in the chuck feeds living beings gasification chamber and biogas outlet respectively.The combustion process of living beings is divided into two-stage combustion, and the first step adopts the air vapor gasification technology, and living beings are converted into imflammable gas, introduces the burner hearth internal combustion; Second step was come the design level combusting boiler according to semicoke content.Adopt living beings gasification chamber and coal-char combustion chamber to come biomass fuel is burnt.The air distribution of biomass fuel adopts the independent air distribution of vaporizer, grate firing chamber staged air distribution.

The manifold type distribution system of forming by coal gas outlet 4 and traveling-grate stoker 9, added steam atomization in the system and introduced equipment steam inlet 7, provide the fuel combustion required air by gasification air compartment 8, first air compartment 10, second air compartment 11, the 3rd air compartment 12, secondary wind 13.

Wherein one-time feeding device 3 is connected with living beings gasification chamber 6 with feed bin 1, low for semicoke content, the biomass fuel that fugitive constituent is high, the quantity delivered of adjustable big one-time feeding device 3, the gasification gas that living beings gasification chamber 6 produces causes 16 burnings in the burner hearth by coal gas outlet 4, low temperature gasification not only can be avoided alkali-metal gas phase conversion, also can avoid high-molecular hydrocarbons in the reproducibility atmosphere, cracking goes out carbon black granules, secondary feeding device 2 is connected with coal-char combustion chamber 15 with feed bin 1, for semicoke content height, the biomass fuel that fugitive constituent is low, the quantity delivered of adjustable big secondary feeding device, biomass fuel then mainly adopt the grate firing combustion system.

Claims (5)

1. the biomass boiler that can realize synthesis gas and semicoke combined combustion, described biomass boiler comprises that boiler body (17), traveling-grate stoker (18), a plurality of air compartment, feed bin (3), living beings gasification chamber (6), gasification air compartment (8) and steam enter pipe (7), and the inner chamber of boiler body (17) is burner hearth (16); It is characterized in that: described biomass boiler also comprises one-time feeding device (1), secondary feeding device (2), coal-char combustion chamber (15) and synthesis gas fairlead (4); Living beings gasification chambers (6) are arranged at boiler body (17) arrival end place, coal-char combustion chamber (15) is arranged between living beings gasification chamber (6) and the boiler body (17), and coal-char combustion chamber (15) are communicated with burner hearth (16), traveling-grate stoker (18) is arranged on living beings gasification chamber (6), coal-char combustion chamber (15) and boiler body (17) three's below, the below that gasification air compartment (8) is arranged on living beings gasification chambers (6) is used to provide living beings gasification chamber (6) endogenous substance fuel combustion required air, steam enters the below that pipe (7) is arranged on living beings gasifications chambers (6) and is used for atomizing steam is introduced in the living beings gasification chambers (6), and living beings gasification chambers (6) are used to produce hydrogen, the synthesis gas that methane and carbon monoxide three mix; The sidewall of living beings gasification chambers (6) is provided with synthesis gas outlet (6-1), one end of synthesis gas fairlead (4) is communicated with by the inner chamber of synthesis gas outlet (6-1) with living beings gasification chambers (6), the other end of synthesis gas fairlead (4) is communicated with burner hearth (16), feed bin (3) is arranged at the two top of living beings gasifications chamber (6), coal-char combustion chamber (15), it is indoor that biomass fuel in the described feed bin (3) enters the living beings gasification by one-time feeding device (1), and it is indoor that the interior biomass fuel of described feed bin (3) enters coal-char combustion by secondary feeding device (2); The below that described a plurality of air compartment is arranged in the traveling-grate stoker (18) corresponding with burner hearth (16) is used to provide interior synthesis gas of burner hearth (16) and coal-char combustion required air.
2. a kind of biomass boiler of realizing synthesis gas and semicoke combined combustion according to claim 1 is characterized in that: the sidewall of described living beings gasification chambers (6) is provided with the cavity (5) with the sidewall conformal, and described cavity (5) is used to produce atomizing steam.
3. a kind of biomass boiler of realizing synthesis gas and semicoke combined combustion according to claim 1 is characterized in that: described a plurality of air compartments are made of first air compartment (9), second air compartment (10), the 3rd air compartment (11) and the 4th air compartment (12); Described first air compartment (9), second air compartment (10), the 3rd air compartment (11) and the 4th air compartment (12) set gradually along arrival end to the port of export of burner hearth (16).
4. according to claim 1,2 or 3 described a kind of biomass boilers of realizing synthesis gas and semicoke combined combustion, it is characterized in that: secondary wind inlet (13) is set at boiler body (17) rear portion, and described secondary wind inlet (13) is used for providing the burning required air to burner hearth (16).
5. a kind of biomass boiler of realizing synthesis gas and semicoke combined combustion according to claim 4 is characterized in that: the output that is positioned at traveling-grate stoker (18) on boiler body (17) is provided with except that cinder notch (14).
CN2010102399732A 2010-07-29 2010-07-29 Biomass boiler capable of realizing combined combustion of synthesis gas and semicoke CN101893234B (en)

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CN102022737B (en) * 2011-01-10 2012-07-18 沈阳工程学院 Biomass vaporization gas-powder mixed combustor
CN102128446B (en) * 2011-01-24 2012-11-21 伟明环保设备有限公司 Boiler for carrying out mixed combustion on carbon black tail gas and coal
CN105258149A (en) * 2015-11-10 2016-01-20 大连旺佳新能源科技开发有限公司 Boiler with improved air supply manner
CN105423279A (en) * 2015-12-16 2016-03-23 柳光 Secondary combustion boiler for biomass fuel
CN105423283B (en) * 2015-12-29 2018-01-23 新乡市工神及第生物质锅炉有限公司 A kind of biomass vapour charcoal joint production boiler
CN106594713B (en) * 2016-12-19 2018-09-07 哈尔滨工业大学 A kind of biomass cascade conversion burner of Anti-slagging
CN109539241A (en) * 2018-11-23 2019-03-29 兖矿集团有限公司 A kind of environmental protection flue gas circulation layer combusting boiler and its processing method
CN109575994B (en) * 2018-12-29 2020-12-25 西北化工研究院有限公司 Coal and gaseous hydrocarbon coupling gasification method for adjusting hydrogen-carbon ratio of synthesis gas
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