CN208292945U - A kind of three eddy flow fire-biomass gasification combustion engines - Google Patents

Abstract

The utility model belongs to fuel apparatus technical field, and in particular to a kind of three eddy flow fire-biomass gasification combustion engines.The utility model includes charging cover board (1), hopper (2), upper-lower scraper (3), sluice valve driven by manpower (4), cylinder (the coherent composition of 13) ﹑ air swirl plackets (14), air inlet eddy flow flat tube (15), air swirl inner cylinder (16), high fire cylinder (18) after three eddy flow ignition cylinder packet small fire ignition cylinders (11), moderate heat ignition cylinder (12), air swirl, coherent composition, the utility model has igniting on fire fast, flue gas is few, will not slagging, without tar, without Mars and high-efficient advantage in flame.

Description

A kind of three eddy flow fire-biomass gasification combustion engines

Technical field

The invention belongs to fuel apparatus technical fields, and in particular to a kind of three eddy flow fire-biomass gasification combustion engines.

Background technique

Over nearly more than 20 years, biomass fuel especially biomass grain forming fuel has been widely used for warming stove, hot water Furnace, steam boiler and various hot-blast stoves etc. need the industry of thermal energy.

There are two types of the combustion technology that biomass fuel uses is more typical in middle-size and small-size specification, the first is gasification combustion It burns, biomass fuel is burnt by bed, make its pyrolysis that combustible gas be precipitated, then the combustible gas is cooling by combustion gas by purification In dust moisture content, wood vinegar, burn after the removal such as tar again.It is for second that half gasification is vertical or horizontal combustion of partly gasifying Burn, biomass fuel is discharged into capable burning by fire grate or chain, make its pyrolysis be precipitated combustible gas, then fire grate or chain row it is upper It mends using Secondary Air as secondary firing in portion space., because its cleaning equipment is complicated, obtained fuel gases calorific value is only former combustion for the first Expect calorific value 60%, so with seldom.Although second of igniting is fast, easy to use, more efficient than the first, used at present Compare more, but there is also igniting flue gas is dense, gasification reduction is insufficient, and fuel has different degrees of slagging agglomeration in burning With there is a small amount of tar, dust, Mars to be heated with flame in output flame boiler furnace in, with will after a period of time Cleaning and maintenance.

Summary of the invention

The purpose of the present invention is aiming at the above problems existing in the prior art, propose a kind of on fire fast, flue gas of lighting a fire It is few, will not slagging, without tar, without Mars and three high-efficient eddy flow fire-biomass gasification combustion engines in flame.

In order to solve the above technical problems, the present invention is using technical solution as described below:

A kind of three eddy flow fire-biomass gasification combustion engines, including charging cover board, hopper, upper-lower scraper, sluice valve driven by manpower, It is characterized in that, the charging cover board is located at hopper top side, and upper-lower scraper is equipped in hopper, and feed hopper bottom side connects electric heating Air generator, the feed hopper bottom exit is equipped with sluice valve driven by manpower, and exports the furnace body for passing through feeding screw machine and combustor Entrance carries out connected, and the furnace body of the combustor includes lower furnace body, annular gap burner hearth, and the side of the annular gap burner hearth is set There is height level detector, cylinder after the other side connection air swirl of annular gap burner hearth, eddy flow moderate heat placket is interior to be equipped with interlayer necking Shape restores chamber, and the reduction of interlayer necking shape is intracavitary to be equipped with small fire ignition cylinder, and small fire ignition cylinder side connects moderate heat ignition cylinder, and small fire The top of ignition cylinder is located in moderate heat ignition cylinder, and the cylinder other side is connect with air swirl placket after the air swirl, air rotation The barrel of stream outer cylinder, which is equipped with, sees fiery cylinder, and the other side of the air swirl placket is wrapped up by the outlet of blower, and wrapped up Air swirl placket part interior is equipped with shunt regulating plate, and intake shunt regulating plate is connected with cylinder after eddy flow moderate heat, and revolves Cylinder is connected with eddy flow high fire cylinder after stream moderate heat, and the barrel at the air swirl placket position wrapped up is equipped with air inlet eddy flow flat tube, The lower furnace body bottom is connected with fire grate decelerating motor, and lower furnace body intracavity bottom position is equipped with fire grate, and fire grate is equipped with level Air hose, and it is equipped with annular trapezoidal wave interface in the top of fire grate, the side of the lower furnace body is equipped with discharge tube, carbon-point igniter point Cloth is connected in lower furnace body bottom, the bottom side of the lower furnace body with ash discharge screw machine, and the other end of ash discharge screw machine with Storage ash bucket is connected.

Preferably, after the fuel is entered by charging cover board, mix fuel by the stirring of upper-lower scraper, Er Qieke So that fuel is not taken arch, and keep the drying of fuel by the hot wind that electric heating air generator in bottom is sent into, makes fuel dryer again It is fast and uniform.

Preferably, the annular gap burner hearth includes two annular cones, and upper cone side is equipped with height level detector, another Side connects ignition cylinder, and annular gap upper furnace is equipped with balance air holes.

Preferably, the lower furnace body includes discharge tube, carbon-point igniter.

Preferably, the interlayer necking shape reduction chamber includes annular trapezoidal wave interface and annular gap.

Preferably, the annular trapezoidal wave interface narrow trapezoidal mouth uniformly distributed along interlayer bottom wide and wide outside and narrow inside under Composition.

The present invention is compared with other methods, and advantageous effects are:

(1) three eddy flow fire-biomass gasification combustion engines of the invention have igniting on fire fast, and flue gas is few, pyrolysis, gas Change, reduction, combustion efficiency it is good, slagging and will not be heated in the high fire finally exported without tar, without Mars to ensure that The validity of heat exchange surface in boiler furnace and the discharge of flue gas reach standard；

(2) three eddy flow fire-biomass gasification combustion engines of the invention stop working it is out of service after can be anneal 3 days, run again When, can exempt from igniting and directly it is on fire, improve the efficiency of combustor, reduce operating cost；

(3) hopper of present invention electrification heat blower drying enters back into furnace after can formerly drying the fuel in hopper Ignition is done, and transport is sealed by feeding screw machine, the duration of ignition can be reduced in this way and generated when eliminating igniting Dense smoke, and under the scraping of hopper upper-lower scraper can effectively avoid the block in hopper, piece, section material and take arch, guarantees automatic gravity The continuity of feed supplement, improves efficiency；

(4) the annular gap burner hearth in the present invention makes to pass through red-hot ring-shaped fire in downlink by the combustible gas of pyrolytic gasification Keep the pyrolytic gasification of hot combustion gas more abundant when layer, the content of tar and vapor can be greatly reduced, simultaneously as combustion air It is passed through in double sandwich, cooling protection can be carried out to double sandwich wall, and pre- heat effect can played to combustion air and improve burning Efficiency；

(5) present invention is equipped with interlayer necking shape on annular trapezoidal wave interface top and restores chamber, passes through in heat combustion flow and instead To when entering reduction chamber, the flow velocity of hot combustion gas can be made to be effectively reduced to that Mars will not be made to escape with thermal current, along with necking Hot polymerization effect can make heat combustion flow obtain higher reduction temperature, effectively make to enter reduction chamber from annular fire bed and bottom fire layer Carbon dioxide and carbon molecules in hot fume are reduced into flammable carbon monoxide together, keep reduction very abundant；

(6) fire grate of the invention is in continuous low speed rotation, as long as the big of flame can directly be adjusted by individually adjusting air quantity It is small, that is, simplify temperature control, and fuel can be made to make automatic gravity feed supplement, more can effectively avoid fuel on fire grate burn when not Clinker can be formed；

(7) ignition cylinder is allocated as eddy flow small fire, eddy flow moderate heat and the fire of eddy flow high fire three by the present invention, wherein eddy flow small fire by It is higher from cone mouth to enter relative concentration in hot combustion gas, it can first kindling and rear flame-out and make to stablize burning, in this way guarantee moderate heat, big The stability and safety of fire, eddy flow moderate heat can make tar and the burn-up of particle Mars a small amount of in moderate heat flame, even if there are also few The dust of amount can also be got rid of to the reversed air swirl of outer ring by eddy flow and return to furnace bottom, make into eddy flow high fire hot combustion gas more Cleaning, thus guarantee the heat exchange surface in the boiler furnace that is heated validity and flue gas emission it is up to standard；

(8) fuel of three eddy flow fire-biomass gasification combustion engines of the invention is wooden material, and fuel can be granular fuel, It may be greater than 5mm, the bulk cargos such as shive, piece, section less than 50mm realize making full use of for resource, while saving energy consumption Take.

Detailed description of the invention

Fig. 1 is structure chart of the invention；

Wherein, 1 ﹑ charging cover board；2 ﹑ hoppers；3 ﹑ upper-lower scrapers；4 ﹑ sluice valve driven by manpower；5 ﹑ electric heating air generators；6 ﹑ feedings Screw machine；7 ﹑ lower furnace bodies；8 ﹑ annular gap burner hearths；9 ﹑ height level detectors；10 ﹑ interlayer necking shapes restore chamber；11 ﹑ small fires are under fire Cylinder；12 ﹑ moderate heat ignition cylinders；13, cylinder after air swirl；14 ﹑ air swirl plackets；15, eddy flow flat tube is entered the wind；16, air swirl Inner cylinder；17, shunt regulating plate；18, high fire cylinder；19, blower；20, fiery cylinder is seen；21, carbon-point igniter；22, fire grate decelerating motor； 23, annular trapezoidal wave interface；24, fire grate；25, horizontal air hose；26, discharge tube；27, ash discharge screw machine；28, ash bucket is stored up.

Specific embodiment

Below in conjunction with the attached drawing in the present invention, technical solution in the embodiment of the present invention carry out it is clear, completely retouch It states, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on the present invention In embodiment, those skilled in the art's all other reality obtained without making creative work Example is applied, protection scope of the present invention is belonged to.

Three eddy flow fire-biomass gasification combustion engines as shown in Figure 1, including charging cover board 1, hopper 2, upper-lower scraper 3, hand Dynamic flap valve 4, the charging cover board 1 are located at 2 top side of hopper, upper-lower scraper 3 are equipped in hopper, and 2 bottom side of hopper connects Electric heating air generator 5 is connect, sluice valve driven by manpower 4 is equipped at 2 outlet at bottom of hopper, and export through feeding screw machine 6 and combustion The furnace body entrance of burning machine carries out connected, and the furnace body of the combustor includes lower furnace body 7, annular gap burner hearth 8, the annular gap The side of burner hearth 8 is equipped with height level detector 9, cylinder 13 after the other side connection air swirl of annular gap burner hearth, before eddy flow moderate heat It is equipped with interlayer necking shape in cylinder and restores chamber 10, the reduction of interlayer necking shape is intracavitary to be equipped with small fire ignition cylinder 11, small fire ignition cylinder side Moderate heat ignition cylinder 12 is connected, and the top of small fire ignition cylinder 11 is located in moderate heat ignition cylinder, cylinder 13 is another after the air swirl Side is connect with air swirl placket 14, and the barrel of air swirl outer cylinder, which is equipped with, sees fiery cylinder 20, the air swirl placket 14 The other side is wrapped up by the outlet of blower 19, and 14 part interior of air swirl placket wrapped up is equipped with shunt regulating plate 17, into Air quantity diversion adjustable plate is connected with cylinder 16 after eddy flow moderate heat, and cylinder 16 is connected with eddy flow high fire cylinder 18 after eddy flow moderate heat, quilt The barrel at 14 position of air swirl placket of package is equipped with air inlet eddy flow flat tube 15, and 6 bottom of lower furnace body and fire grate slow down electric Machine 22 is connected, and 6 intracavity bottom position of lower furnace body is equipped with fire grate 24, and fire grate is equipped with horizontal air hose 25, and in the upper of fire grate 24 Side is equipped with annular trapezoidal wave interface 23, and the side of the lower furnace body 6 is equipped with discharge tube 26, and carbon-point igniter 21 is distributed in lower furnace body The bottom side of bottom, the lower furnace body 6 is connected with ash discharge screw machine 27, and the other end of ash discharge screw machine 27 and storage ash bucket 28 are connected.After the fuel is entered by charging cover board 1, mix fuel by the stirring of upper-lower scraper 3, and can make to fire Material does not take arch, and the drying of fuel is kept by the hot wind that bottom electric heating air generator 5 is sent into, make fuel dryer not only fastly but also Uniformly.The annular gap burner hearth 8 includes two annular cones, and upper cone side is equipped with height level detector 9, other side connection hair Fiery cylinder, annular gap upper furnace are equipped with balance air holes.The lower furnace body includes discharge tube, carbon-point igniter.The interlayer contracting It includes annular trapezoidal wave interface and annular gap that the degree of lip-rounding, which restores chamber,.The annular trapezoidal wave interface is narrow wide and wide outside and narrow inside under Uniformly distributed along interlayer bottom trapezoidal mouth composition.

Illustrate use process of the invention with reference to the accompanying drawing: when to feed to hopper 2, first closing the hand of bottom Dynamic flap valve 4 restarts the speed regulating motor at top, rotates upper-lower scraper 3, opens charging cover board 1 immediately, can to hopper 2 into Row hand stock can start electric heating air generator 5 after filling it up with and be thermally dried to the fuel in hopper 2, drying time According to different size, different fuel is set, and when fuel dryer to moisture content is less than 3%, indicator light is bright, that is, is automatically stopped It is dry.Upper-lower scraper 3 is scraped the fuel of bottom to feed opening by scraping, and is transported the fuel after drying by feeding screw machine 6 Be input into into annular gap burner hearth 8, can feed again to hopper 2 at this time, but can need not re-dry, fuel be sent into annular After interlayer burner hearth 8, when material position adds to the height level detector 9 of 8 top of annular gap burner hearth, feeding screw machine 6 will stop automatically Only, be then turned on carbon-point igniter 21, light a fire to the fuel in annular gap burner hearth 8, be then turned on after 2min blower 19 from It is slow to restart fire grate 24 into after operating normally up on fire to very fast and be allowed to ceaselessly rotate, in the mistake for entering normal condition Cheng Zhong, the fuel at 8 middle part of annular gap burner hearth can be heated and be pyrolyzed generation combustion gas, and be advanced into inside and outside lower part under combustion gas meeting The annular fire bed of two interlayers composition, hot combustion gas can obtain further pyrolytic gasification in annular fire bed, to significantly drop The content of low tar and vapor does not stop to rotate due to fire grate 24, and all burnt Hou Hui branch falls into furnace bottom from fire grate hole, together The feed supplement of Shi Zidong gravity loosens the bed of material also in continuous feeding, and under the rotation of fire grate, fuel in burning not yet It will form clinker, while when being additionally provided with multiple rows of horizontal air hose 25 on fire grate can rotate by fire grate 24 to the bed of material on fire grate top It is loosened, allows the normal combustion of the combustion air being pierced by from horizontal 25 aperture of air hose ceaselessly, to overcome fire grate On small pellets will not influence burning because resistance is too big, can burn to sawdust less than 5mm.

When combustion gas is redirected back into necking shape reduction chamber, hot combustion gas can be made by the annular trapezoidal wave interface 23 of lower part Flow velocity be effectively reduced to Mars will not being made to escape with thermal current, along with the hot polymerization effect of necking can make heat combustion flow obtain compared with High reduction temperature effectively makes to enter from annular fire bed and bottom fire layer the carbon dioxide reduction in the hot fume of reduction chamber at one Carbonoxide, and three eddy flow ignition cylinders include 13 ﹑ air swirl of cylinder after small fire ignition cylinder 11, moderate heat ignition cylinder 12, air swirl Placket 14, air inlet eddy flow flat tube 15, air swirl inner cylinder 16, the coherent composition of high fire cylinder 18, are allocated as eddy flow small fire, rotation for ignition cylinder Moderate heat and the fire of eddy flow high fire three are flowed, wherein eddy flow small fire is due to hot combustion gas higher, its meeting that from cone mouth is redirected back into relative concentration It first catches fire and stops working afterwards and make to stablize burning, guarantee the stability and safety of moderate heat, high fire in this way, eddy flow moderate heat can make moderate heat A small amount of tar and the burn-up of particle Mars in flame, even if can also get rid of the reversed sky to outer ring by eddy flow there are also a small amount of dust Cyclonic current and return to furnace bottom, keep the hot combustion gas into eddy flow high fire cleaner, to guarantee the heat in the boiler furnace being heated The validity of exchange surface and flue gas emission it is up to standard.

The present invention is further described by specific embodiment above, it should be understood that, here specifically Description, should not be construed as the restriction for the essence of the present invention with range, and one of ordinary skilled in the art is reading this explanation The various modifications made after book to above-described embodiment belong to the range that the present invention is protected.

Claims (6)

1. a kind of three eddy flow fire-biomass gasification combustion engines, including feed cover board (1), hopper (2), upper-lower scraper (3), turn over manually Plate penalizes (4), which is characterized in that the charging cover board (1) is located at hopper (2) top side, is equipped with upper-lower scraper inside hopper (3), hopper (2) bottom side connects electric heating air generator (5), and sluice valve driven by manpower is equipped at hopper (2) outlet at bottom (4), and outlet is connected by feeding screw machine (6) with the furnace body entrance of combustor, under the furnace body of the combustor includes Furnace body (7), annular gap burner hearth (8),

The side of the annular gap burner hearth (8) is equipped with height level detector (9), the other side connection air rotation of annular gap burner hearth Cylinder (13) after stream, eddy flow moderate heat placket is interior to be equipped with interlayer necking shape reduction chamber (10), and the reduction of interlayer necking shape is intracavitary to be equipped with small fire Ignition cylinder (11), small fire ignition cylinder side connect moderate heat fire cylinder (12), and the top of small fire ignition cylinder (11) is located at moderate heat ignition In cylinder, cylinder (13) other side is connect with air swirl placket (14) after the air swirl, is set on the barrel of air swirl outer cylinder It sees fiery cylinder (20), the other side of the air swirl placket (14) is wrapped up by the outlet of blower (19), and the air wrapped up Eddy flow placket (14) part interior is equipped with shunt regulating plate (17), and intake shunt regulating plate is connected with cylinder (16) after eddy flow moderate heat It connects, and cylinder (16) is connected with eddy flow high fire cylinder (18) after eddy flow moderate heat, the cylinder at air swirl placket (14) position wrapped up Wall is equipped with air inlet eddy flow flat tube (15), and lower furnace body (7) bottom is connected with fire grate decelerating motor (22), in lower furnace body (7) Bottom of chamber position has installed fire grate (24), and fire grate is equipped with vertical air-duct (25), and trapezoidal equipped with annular in the top of fire grate (24) The side at wave interface (23), the lower furnace body (7) is equipped with discharge tube (26), and carbon-point igniter (21) is distributed in lower furnace body bottom, The bottom side of the lower furnace body (7) is connected with ash discharge screw machine (27), and the other end of ash discharge screw machine (27) and storage ash Bucket (28) is connected.

2. three eddy flow fire-biomass gasification combustion engine according to claim 1, which is characterized in that the charging cover board (1) exists It opens post fuel and enters hopper (2), stir fuel by the stirring of upper-lower scraper (3), and fuel can be made not take arch, and Make having fastly again uniformly for fuel dryer by the hot wind that bottom electric heating air generator (5) is sent into.

3. three eddy flow fire-biomass gasification combustion engine according to claim 1, which is characterized in that the annular gap furnace chamber It (8) include two annular cones, upper cone side is equipped with height level detector (9), and the other side connects ignition cylinder, annular gap burner hearth (8) top is equipped with balance air holes.

4. three eddy flow fire-biomass gasification combustion engine according to claim 1, which is characterized in that the lower furnace body (7) includes Carbon-point igniter (21), discharge tube (26).

5. three eddy flow fire-biomass gasification combustion engine according to claim 1, which is characterized in that the interlayer necking shape reduction Chamber (10) includes annular trapezoidal wave interface (23) and annular gap.

6. according to claim 1 or the 5 three eddy flows fire-biomass gasification combustion engines, which is characterized in that the annular trapezoidal wave Interface (23) narrow trapezoidal mouth uniformly distributed along interlayer bottom wide and wide outside and narrow inside under forms.