CN205351297U - Gasification burner - Google Patents
Gasification burner Download PDFInfo
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- CN205351297U CN205351297U CN201521075554.4U CN201521075554U CN205351297U CN 205351297 U CN205351297 U CN 205351297U CN 201521075554 U CN201521075554 U CN 201521075554U CN 205351297 U CN205351297 U CN 205351297U
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Abstract
The utility model discloses a gasification burner, include gasification anti - burning furnace, hot flue gas passageway, just burn the flue gas passageway, wherein: hot flue gas passageway lies in the rear side of gasifier, and just the furnace body with the gasifier becomes a body coupling, just burning the flue gas passageway and setting up in the left and right sides of gasifier, with a furnace body one -tenth body coupling of gasifier. The utility model discloses a gasification is fired burning furnace and is used the plant origin living beings as the raw materials, both can adopt trans burning, pyrolysis gasification mode to produce hot flue gas, provides the heat source, can adopt formal burning, pyrolysis gasification mode to produce hot flue gas again, provides the heat source, and the thermal efficiency is high, and the fuel burning is abundant, and pollution discharge amount is low.
Description
Technical field
This utility model relates to a kind of gasified combustion apparatus, particularly to counter-burning type gasified combustion apparatus, belongs to timber processing and energy-conserving and emission-cutting technology field.
Background technology
The energy is the important substance basis of economic construction and social development.Due to the world growing, the worsening shortages of conventional energy resource, the oil price of energy demand are risen steadily, the pressure of global warming and environment, solve energy crisis and have become as the bottleneck problem of social development, be problem in the urgent need to address at present.Strategy sight, for seeking energy security and human social, is turned to the exploitation of regenerative resource by countries in the world.So reproducible new forms of energy will become the most important thing of 21st century energy development.
Garbage in agriculture, woods, animal husbandry, residue (such as agricultural crop straw, wood machining residues etc.) are but the biomass resources of reusable edible, and reserves are huge.The yield of agricultural crop straw increases rapidly along with the increase of crops, particularly cereal crops yield.Drug on the market causes straw to be abandoned in field for agricultural crop straw, house courtyard, is directly burned even at field.Abandon the straw in house courtyard and field and can affect environment and initiation fire, cause pollution of waterhead.In the open crop straw burning can contaminated air, endanger people ' s health, especially on airport, near Highway burning can affect traffic safety, cause aircraft ground, car tracing cauda collision, shade tree such as is burned out at the adverse consequences.
Along with the fast development of society, people increasingly add attention for energy-saving and emission-reduction and ecological environmental protection, constantly seek to use the new energy, control atmosphere pollution, energy-saving and emission-reduction, reduce greenhouse effect.The technology being comprehensively converted into available resources with biomass waste resources such as agricultural crop straw, feces, bran slags has caused showing great attention to of department at different levels of government.
The boiler research providing the energy currently with plant source biological material is numerous, for instance emerge in an endless stream in counter-burning type biomass waste resource pyrolysis plant, device, open fire reverse combustion formula combustion furnace etc..Although these existing gasification furnaces can reach the energy-saving and environmental protection effect of part, but there are some technological deficiencies in the aspects such as its combination property such as thermal technology, the thermal efficiency, for instance: stove profile is relatively big, and the flow process of working-medium water falls short of, heat recovery is insufficient, biomass fuel combustion is insufficient, and its thermal efficiency is low, only about 80%, impurity content in flue gas is high, seriously polluted, therefore, it is necessary to research and develop a kind of novel biomass back-burning formula gasification combustion furnace.
Existing body of heater mostly adopts and just burns, it is simply that combustion gas is directly up walked, and fuel combustion so can be made insufficient, it may appear that the phenomenons such as over-emitting black exhaust, and environmental pollution is serious, and serious threat is to the living environment of people.In order to solve these problems, the utility model patent of application number 201420164860.4 and 201420165784.9 gives a kind of gasification counter-combustion heating plant, it is abundant that this device has fuel combustion, smoke secondary utilizes, pollute little, in the flue gas produced after burning, Dust Capacity is few, the advantage such as stable, easy to adjust, but existing gasification counter-combustion apparatus function is single, can not realize just burning and anti-function of burning simultaneously, use scope limited, and fire grate fire grate is short for service life, maintenance difficulty, operating cost is higher.
Utility model content
The purpose of this utility model is to provide a kind of gasified combustion apparatus for the existing technical problem utilizing the gasification furnace that plant-originated biomass is fuel to exist.Gasification combustion furnace of the present utility model, with plant-originated biomass for raw material, both can adopt trans burning, pyrolytic gasification mode to produce heat smoke, it is provided that thermal source, formal burning, pyrolytic gasification mode can be adopted again to produce heat smoke, it is provided that thermal source, and the thermal efficiency is high；And fuel combustion is abundant, Pollution drainage is low.
For realizing this utility model purpose, this utility model provides a kind of gasified combustion apparatus on the one hand, including gasification counter-combustion stove, heat smoke passage, just burn exhaust gases passes, wherein: described heat smoke passage is positioned at the rear side of gasification counter-combustion stove, and integral with the body of heater of gasification counter-combustion stove be connected and be connected with gasification counter-combustion stove；The described exhaust gases passes that just burning is arranged on the left and right sides of gasification counter-combustion stove, integral with the body of heater of gasification counter-combustion stove be connected and be connected with gasification counter-combustion stove.
Wherein, described gasification counter-combustion stove includes body of heater, flue, exhanst gas outlet, fire grate assembly, and wherein said body of heater entirety is cuboid-type or square build；The flue of furnace interior is cross section is the cavity of rectangle, forms gasification combustion chamber；Described fire grate assembly is arranged on the middle part of flue, and flue is divided into upper and lower combustor；Described exhanst gas outlet is arranged on the sidewall of lower combustion chamber.
Particularly, described fire grate assembly is positioned at the top of described exhanst gas outlet.
Especially, described body of heater is made up of flame-proof thermal insulation material, is made up of refractory material inside it, and outside is made up of insulation material.So not only can reduce the heat exchange of body of heater and outside air, reduce thermal loss, moreover it is possible to extend body of heater service life, be conducive to gasification reaction.
Particularly, upper furnace door is offered in the middle and upper part of the front side wall of described body of heater；Lower furnace door is offered in middle and lower part, for observing the combustion position of flue fuel.Upper and lower fire door can also be opened as providing oxygen in reverse burning furnace.
Wherein, exhanst gas outlet is arranged on the bottom of the rear wall of described body of heater, and runs through rear wall, is connected with described heat smoke passage.
Particularly, described exhanst gas outlet is connected with described heat smoke passage, and through heat smoke channel row, the heat smoke that gasification furnace burning produces is gone out gasification furnace.
Especially, described heat smoke passage is connected by the flue of described exhanst gas outlet with described gasification counter-combustion stove.
Wherein, the lower end closed of described body of heater, upper end is provided with charge door and closes the top cover of charge door.
Particularly, described charge door to arrange position corresponding with flue, namely the center of charge door and the axis of flue adapt, and are beneficial to fuel and fall in flue.
Wherein, the left side wall of described body of heater, right side wall middle and lower part be respectively provided with auxiliary oxygen feeder (i.e. left and right side assist oxygen feeder), and the auxiliary oxygen feeding tube (i.e. left and right side auxiliary oxygen feeding tube) outside assisting oxygen feeder to extend to gasification counter-combustion furnace body respectively with 2 is connected, air or oxygen outside body of heater is imported furnace interior, provides oxygen for the fuel combustion in flue.
Particularly, described auxiliary oxygen feeding tube extends to be respectively provided with in the pipeline outside gasification counter-combustion stove assists into oxygen valve, assists opening and closing or opening degree into oxygen valve to regulate the oxygen feeding amount entered in flue by regulating, improves the efficiency of combustion of fuel.
This utility model can adopt automatic or manual to control system and regulate the size assisting opening and closing or opening degree into oxygen valve, control valve can be carried out according to the combustion case of burner hearth Internal biological matter fuel and open size, and then adjustment oxygen feeding amount, improve the fired state just burnt.
Wherein, the exhanst gas outlet of described auxiliary oxygen feeder and the rear wall bottom being opened in body of heater is located in the same horizontal plane, and can reduce heat smoke and flow into the resistance of heat smoke passage, reduce blower fan resistance, improve heat exchange efficiency.
Particularly, described auxiliary oxygen feeder position is set and the exhanst gas outlet of the bottom of the rear wall being opened in body of heater is positioned at same level, namely the axle center that exhanst gas outlet is offered in the axle center of left and right side auxiliary oxygen feeder and the bottom of the rear wall of body of heater is positioned at same level, decrease the blower fan resistance that heat smoke is extracted out body of heater, be more conducive to heat exchange.
Especially, described auxiliary oxygen feeding tube is connected with described just burning exhaust gases passes respectively, sends entering the heat smoke just burning in exhaust gases passes into described lower combustion chamber, then enters described heat smoke passage through described exhanst gas outlet, and then discharge gasification counter-combustion device.
Wherein, the top of the left and right sidewall of described body of heater is offered respectively and is just being burnt floss hole (namely left and right side is just burning floss hole), and just burning floss hole to be connected with described just burning exhaust gases passes (left and right side is just burning exhaust gases passes) respectively, for gasification counter-combustion stove when just the mode of burning is burnt in employing, heat smoke burning produced is derived from upper combustion chamber, flows into and is just burning exhaust gases passes.
Particularly, the described exhaust gases passes that just burning just is burning between floss hole and auxiliary oxygen feeder, will just burn floss hole and connect with auxiliary oxygen feeder.
Especially, described auxiliary oxygen feeding tube is horizontally disposed with；The described exhaust gases passes that just burning is vertically arranged.
Wherein, described just burning in floss hole to arrange just burn chimney valve, when just burning chimney valve unlatching, just burn floss hole, just burning exhaust gases passes, auxiliary oxygen feeding tube, assist oxygen feeder connection, by just burning in flue the heat smoke of generation through just burning floss hole, just burn exhaust gases passes, auxiliary oxygen feeding tube, auxiliary oxygen feeder send into the lower combustion chamber of gasification counter-combustion stove, then discharge through described exhanst gas outlet；When just burning chimney valve closedown, just burning floss hole blocked, it is impossible to forming heat smoke flow channel, gasification counter-combustion stove carries out trans burning.
Just burning chimney valve to align the unlatching of burning process and whether be controlled, when just burning Flue valve and opening, adopting and just burn, when just burning chimney valve and closing, carry out gasification counter-combustion.Anti-burning process is mainly used in providing substantial amounts of heat, preheating treatment procedure in timber heat modification process, process of just burning mainly carries out when heat demand is few, delay the combustion process of biological material, such as when heat treatment process occurs in that power failure, have only to heat modification kiln is incubated, at this moment adopt and just burn.The opening and closing of valve adopts motor to be adjusted, and adopts and is switched on valve when just burning, and adopts and is shut off valve during anti-burning.
Particularly, described auxiliary oxygen feeding tube is connected with the described exhaust gases passes that just burning respectively, sends entering the heat smoke just burning in exhaust gases passes into described lower combustion chamber, then enters described heat smoke passage through described exhanst gas outlet, and then discharge gasification counter-combustion device.
Especially, the left side wall of described body of heater, right side wall top offer respectively and just burning floss hole, and just burning floss hole to be connected with described just burning exhaust gases passes (23,24) respectively, for gasification furnace when just the mode of burning is burnt in employing, heat smoke burning produced is derived from upper combustion chamber, flows into and is just burning exhaust gases passes, then pass through auxiliary oxygen feeder and flow into lower combustion chamber, then through exhanst gas outlet, enter heat smoke passage, and then the heat produced is discharged gasification counter-combustion device.
Particularly, described auxiliary oxygen feeding tube arranges the described bottom just burning exhaust gases passes, and is connected with the described exhaust gases passes that just burning.
Wherein, described fire grate assembly includes in flat fire grate main body and is positioned at the upper steel pipe at the upper and lower two ends of main body, lower steel pipe, and wherein, fire grate main body is fixing with upper and lower steel pipe to be connected, and is interconnected, and forms the passage of flow of cooling water.
Particularly, described fire grate main body is formed by many steel pipes are arranged in parallel, and spaced-apart relation between steel pipe；Described upper steel pipe, lower steel pipe are integral with described main body steel-pipe welding, and connect each other at weld, form passage.
Especially, described fire grate main body is formed by 2-5 root steel pipe is arranged in parallel, it is preferred to 3-4 root.
Fire grate assembly includes fire grate main body and is positioned at the upper steel pipe at main body two ends, lower steel pipe, and wherein, described fire grate main body entirety is a plane, is made up of many steel pipes, is spaced, arranged in parallel；Described upper steel pipe, lower steel pipe are along being perpendicular to the axially integral with described main body steel-pipe welding of composition fire grate main body steel pipe, and upper steel pipe, lower steel pipe connect at weld each other with the steel pipe of composition fire grate main body, form inner passage, for flow of cooling water passage.Cooling water flows into from lower steel pipe, flows out from upper steel pipe after fire grate main body steel pipe.
Particularly, described upper steel pipe, lower steel pipe are along being perpendicular to the axially integral with described main body steel-pipe welding of composition fire grate main body steel pipe, and upper steel pipe, lower steel pipe connect at weld each other with the steel pipe of composition fire grate main body, form passage.
Especially, described upper steel pipe, the axis of lower steel pipe are mutually perpendicular to the axis of the steel pipe of composition fire grate main body.
Particularly, outer surface one layer of flame retardant coating being made up of refractory material of attachment of the steel pipe of described composition fire grate main body.
Especially, the thickness >=10mm of described flame retardant coating.Flame retardant coating not only can prevent steel pipe to be burned, extend steel pipe physical life, be conducive to being smoothed out of gasification counter-combustion process, cooling water can be passed in fire grate steel pipe again according to in-furnace temperature and steel tube surface temperature (reaching more than 900 DEG C), fire grate is carried out cooling process, reduce the temperature of stoker surface, extend the fire grate life-span further, in gasification counter-combustion early stage, owing to in-furnace temperature is not as high, cooling water should not be opened, process the later stage, when in-furnace temperature is too high, the physical life of steel pipe is had when affecting, fire grate can be played the effect of cooling protection by condensed water, and while passing into cooling fire grate carries out cooling protection process by water, condensed water within fire grate is owing to absorbing heat, portion of water can be changed into steam, thus the steam that will produce in fire grate steel pipe, pass in the follow-up equipment needing steam treatment and (inside such as timber heat modification device, timber can be played the effect of heating and damping), realize heat recovery, improve energy use efficiency.
Owing to having refractory material on the lateral wall of fire grate steel pipe, its attachment thickness, no less than 10mm, so not only can keep the temperature of outer surface, be conducive to gasification reaction；And cooling water can be passed into again in the steel pipe of fire grate assembly of the present utility model, cool process to fire grate, reduces the temperature of stoker surface, extends the fire grate life-span further；3rd can also the steam that produces of cooling water, for follow-up or other need the process equipment of steam, to be supplied to the hot worked needs of timber.
Wherein, described fire grate assembly slant setting is in flue, and described angle of inclination is 0-10 °, it is preferred to 5 °, is so conducive to the steam produced in fire grate automatically up move and be conducive to the eliminating of later stage fire grate internal moisture.
Particularly, one end of described upper and lower steel pipe is closed, and the other end is open, and cooling water flows into from one end of the opening of lower steel pipe, and cooling water flows out from one end of the opening of upper steel pipe, carries out in combustion for fire grate assembly cooling down, lowering the temperature after flowing through fire grate main body.
Wherein, one end of the opening of upper and lower steel pipe extends respectively into outside body of heater left side wall or right side wall, is connected with cooling water pipe, cooling water is introduced the fire grate assembly in flue, lowers the temperature for fire grate assembly.
Particularly, the upper steel pipe of described fire grate assembly is arranged on the rear wall of body of heater；Described lower steel pipe is arranged on the front side wall of described body of heater.
Compared with prior art, gasified combustion apparatus of the present utility model has the advantage that
1, gasified combustion apparatus of the present utility model is with agriculture and forestry organic waste material or residue for raw material, after entering flue from the charging aperture at top, realizing fully burning through upper combustion chamber, fire grate assembly, lower combustion chamber, flue gas is by scorching hot layer of charcoal, carry out second time burning, sufficient combustion；This utility model device is just burning process, and flue gas, also by scorching hot layer of charcoal, fully burns, and significantly reduces the dust and black smoke that produce in agriculture and forestry organic waste material, the direct combustion process of industrial wood waste, has significant environmental protection efficacy；
2, the energy-saving effect of gasified combustion apparatus of the present utility model is obvious, it is possible to continue to provide heat energy, makes the energy utilization rate of material improve more than 10%；
3, gasified combustion apparatus simple in construction of the present utility model, easy to operate, it is possible to automatically control；The outer surface attachment refractory masses of fire grate assembly, keeps the temperature of outer surface, is conducive to gasification reaction, the temperature of stoker surface can be reduced again by the mode of water-cooled, extend the fire grate life-span further, and a small amount of self-produced steam can be realized, to be supplied to the hot worked needs of timber.
4, the sufficient combustion of biomass fuel in gasified combustion apparatus of the present utility model, the thermal efficiency is high, improves production efficiency, reduces production cost.
5, gasified combustion apparatus of the present utility model can not only adopt trans combustion system, carries out gasification of biomass and produces amount of heat, is rapidly heated for needs, provides sufficient thermal source by the situation that heat demand is big；Can also ensure to occur without under the states such as sharply cooling after some needs only to insulation or system blackout, the mode adopting formal burning carries out biomass pyrogenation gasification and produces heat, heat energy is continuously provided, avoid because emergency situations causes high temperature change impact use or normal operation, particularly in wood processing field, avoid, because unexpected power-off, causing that the temperature in the timber course of processing reduces rapidly, affecting the quality of timber converted products.
According to the needs of timber heat modification technique, can realizing positive and negative burning operation flexibly, the use to meet different disposal stage and occasion can demand.Anti-burning process is mainly used in providing substantial amounts of heat, preheating treatment procedure in timber heat modification process, process of just burning mainly carries out when heat demand is few, delay the combustion process of biological material, such as when heat treatment process occurs in that power failure, have only to heat modification kiln is incubated, at this moment adopt and just burn.
6, gasified combustion apparatus of the present utility model arrange auxiliary oxygen feeder, oxygen feeding tube, when furnace interior biomass can not fully be burnt, when having black smoke to emerge, illustrate that inside lacks oxygen, auxiliary oxygen feeder need to be opened and pass into air to furnace interior, promote the burning of biomass, so that burning is more fully completely, the opening degree of the valve in oxygen feeding tube is the important indicator weighing oxygen feeding amount, when oxygen deficiency in stove, valve in auxiliary oxygen feeding tube is opened greatly, otherwise is decreased or turned off.
7, gasified combustion apparatus of the present utility model is applied widely, flexible arrangement, can directly with the existing steam generator system such as existing heat-conducting oil furnace, steam oven, water heater, air stove with the use of.
Gasification counter-combustion stove of the present utility model is under the effect of air-introduced machine, flue gas can pass through layer of charcoal scorching hot on fire grate, enter lower combustion chamber and carry out second time burning, compared with directly burning, gasification counter-combustion device of the present utility model can improve energy utilization rate more than 10%, can reduce in a large number simultaneously and plant the dust and black smoke produced in the direct combustion process of source biomass.Meanwhile, this device can just burn according to actual needs and burn with counter, just burns even if adopting, and flue gas also can carry out second-time burning so that sufficient combustion, pollution-free.And in order to extend fire grate service life, reducing operating cost, fire grate is improved by this reverse burning furnace.
Accompanying drawing explanation
Fig. 1 is the structural representation of counter-burning type gasified combustion apparatus of the present utility model；
Fig. 2 is the cross-sectional schematic of A-A in Fig. 1；
Fig. 3 is the cross-sectional schematic of B-B in Fig. 2；
Fig. 4 is the structural representation of the fire grate component system of counter-burning type gasified combustion apparatus of the present utility model；
The working state schematic representation that Fig. 5 is that counter-burning type gasified combustion apparatus of the present utility model is anti-when burning；
Fig. 6 is the counter-burning type gasified combustion apparatus of the present utility model working state schematic representation when just burning.
Description of reference numerals
1, gasification counter-combustion stove；2, body of heater；20, left side auxiliary oxygen feeder；21, upper furnace door；22, lower furnace door；23, exhaust gases passes is just being burnt in left side；24, exhaust gases passes is just being burnt on right side；25, charge door；26, top cover；27, floss hole is just being burnt in left side；28, floss hole is just being burnt on right side；29, chimney valve is just being burnt；30, right side auxiliary oxygen feeder；3, flue；31, left side auxiliary oxygen feeding tube；32, right side auxiliary oxygen feeding tube；33, assist into oxygen valve；4, heat smoke passage；5, exhanst gas outlet；6, fire grate component parts；61, fire grate main body；62, upper steel pipe；63, lower steel pipe；7, upper combustion chamber；8, lower combustion chamber；
Detailed description of the invention
Specific embodiment of the utility model is described in detail with reference to the accompanying drawings, advantage of the present utility model and feature will be with describe and apparent.But these embodiments are only exemplary, scope of the present utility model is not constituted any restriction.It will be understood by those skilled in the art that and the details of technical solutions of the utility model and form can be modified or replace under not necessarily departing from spirit and scope of the present utility model, but these amendments and replacement each fall within protection domain of the present utility model.
As shown in Figure 1, 2, 3, gasified combustion apparatus of the present utility model includes gasification counter-combustion stove 1, the outside heat smoke passage 4 being connected with gasification counter-combustion stove flue and is connected in one with body of heater that is arranged on gasification counter-combustion furnace body rear wall, is arranged on being connected with gasification counter-combustion stove flue and be the just burning exhaust gases passes 23,24 being integrally connected with body of heater outside the left and right sidewall of body of heater.
The rectangular in cross-section of the cavity of the inside of the gasification counter-combustion furnace body 2 of overall one-tenth cuboid or the square bodily form, forms the flue 3 of gasification furnace, and inboard wall of furnace body is made up of flame-proof thermal insulation material, and outer wall is made up of insulation material.
The lower end closed of body of heater 2, upper end offers fuel charge door 25 and closes the top cover 26 of charge door, and the centrage arranging position and flue of charge door 25 adapts, and is beneficial in flue and adds fuel.The lower end of body of heater, upper end inner side be made up of refractory material, outside is formed (not indicating in accompanying drawing) by insulation material.
Fig. 1, the middle and upper part of body of heater front side wall, middle and lower part are offered for observing the upper furnace door 21 of body of heater fuel combustion situation, lower furnace door 22, it is respectively used to observe the fuel combustion situation of the upper and lower part in flue, the oxygen feeding amount of the oxygen being beneficial in the interpolation regulating fuel in real time and adjustment flue.
Such as Fig. 2, exhanst gas outlet 5 is offered in the bottom of body of heater rear wall；The outside being close to body of heater rear wall arranges the heat smoke passage 4 of setting, and heat smoke passage is connected with exhanst gas outlet, and heat smoke gasification counter-combustion stove fuel combustion produced derives reverse burning furnace.The outside of heat smoke passage and body of heater rear wall fits tightly, and connects in one.The inwall of heat smoke passage is made up of refractory material, the outside parcel insulation material of the inwall that the refractory material at heat smoke passage is made, and reduces thermal loss, reduces the heat exchange of body of heater and surrounding, and refractory material is not burned mainly for the protection of body of heater.
Such as Fig. 3, the outside of the left and right sidewall of body of heater arranges left side and is just burning exhaust gases passes 23, right side and just burning exhaust gases passes 24；Left side, right side are just burning that exhaust gases passes is close to body of heater left side wall, the outside of right side wall is vertically arranged, and are connected with body of heater in integrally.
Body of heater left side wall, right side wall top offer left side and just burning floss hole 27, right side and just burning floss hole 28, floss hole is just being burnt near body of heater upper end in left side, right side, extend through the left side wall of body of heater, right side wall, form through hole, just burning exhaust gases passes 23,24 respectively to be connected with left side, right side, the heat smoke produced that burnt under just burning state by gasification counter-combustion stove imports to from the top of body of heater and just burns exhaust gases passes.
Left side, right side are just being burnt in floss hole to arrange and are just being burnt chimney valve 29, just burning when chimney valve is opened and gasification counter-combustion stove is just being burnt exhaust gases passes with left side, right side be connected, the heat smoke that stove fuel combustion is produced from the top of body of heater through left side, right side just burning floss hole import on the left of, right side just burning exhaust gases passes；When just burning chimney valve and closing, gasification counter-combustion stove and left side, right side are just being burnt exhaust gases passes and are being blocked.
Just burning chimney valve to align the unlatching of burning process and whether be controlled, opening when needs adopt and just burning mode energy supply and just burning chimney valve, carry out gasifying and just burn；Close when needs adopt anti-burning mode energy supply and just burning chimney valve, carry out gasification counter-combustion.Needs according to timber heat modification technique, realize positive and negative burning operation flexibly, and the use to meet different disposal stage and occasion can demand.When needs just burn time, open and just burn valve, when being made without just burning, close valve.
Left side auxiliary oxygen feeder 20, right side auxiliary oxygen feeder 30 are offered in the middle and lower part of the left and right sidewall of body of heater.Left and right side auxiliary oxygen feeder and 2 auxiliary oxygen feeding tubes 31,32 are connected.Left side, right side auxiliary oxygen feeding tube 31,32 outside the left and right sidewall extending through body of heater the body of heater extending to gasification counter-combustion stove assist oxygen feeder to be connected with corresponding left and right side respectively.Left side auxiliary oxygen feeding tube is positioned at left side and is just burning the bottom of exhaust gases passes and just burning exhaust gases passes with left side to connecting, and right side auxiliary oxygen feeding tube is positioned at right side and is just burning the bottom of exhaust gases passes and just burning exhaust gases passes with right side and be connected.Left side, right side auxiliary oxygen feeding tube 31,32 extend in be respectively provided with in the pipeline outside gasification furnace and assist into oxygen valve 33, are delivered in flue by the oxygen outside gasification furnace, provide oxygen for the fuel combustion in flue.
Of the present utility model assist into oxygen valve no matter gasified combustion apparatus is in just burns state or anti-burning state, when furnace interior oxygen is not enough, combustion process occurs all need to open auxiliary oxygen feeder under the anoxia conditions such as black smoke, so that burning is more fully completely.
Assisting and simply regulate the anti-oxygen feeding amount burning process into oxygen valve, just in burning process, assist and be closed into oxygen valve, relatively slower owing to just burning process, oxygen demand is not as big, and oxygen enters mainly through the fire door of body of heater.
The exhanst gas outlet 5 arranging position and body of heater rear wall bottom of left and right side auxiliary oxygen feeder is positioned at same level, namely the axle center of the exhanst gas outlet that the axle center of left and right side auxiliary oxygen feeder is offered with body of heater rear wall bottom is positioned at same level, decrease the blower fan resistance that heat smoke is extracted out body of heater, be more conducive to heat exchange.
The effect of fire grate component parts 6 is to support biomass fuel, but in order to extend the service life of fire grate, just pass into what water was protected, reduces fire grate temperature and extend its service life.Flue is divided into upper and lower combustor by fire grate assembly.
Fuel falls into flue from charging aperture, under the support of fire grate assembly, fuel burns in the upper combustion chamber above fire grate assembly, the scorching hot charcoal produced in fuel completely and the combustion process of not burning is fallen into lower combustion chamber under gravity and is burnt away, the flue gas produced in upper combustion chamber in combustion process (is connected with heat smoke passage at smoke exhaust fan, by heat smoke suction heat smoke passage) effect under, enter lower combustion chamber and carry out second-time burning, partial combustion completely of not burning in upper combustion chamber is fallen, thus fully burning will not produce black smoke gas, and then what generation was cleaned in a large number heat smoke.
Such as Fig. 4, fire grate assembly 6 by flat fire grate main body 61 and be positioned at the upper steel pipe 62 at the upper and lower two ends of main body, lower steel pipe 63 forms, the middle part of the flue of fixed installation gasification counter-combustion stove, and flue is divided into upper combustion chamber 7 and lower combustion chamber 8.Fire grate main body in flue with angle of inclination for 0-10 ° of placement, the lower end of fire grate assembly is positioned at the position on the lower side, middle part of body of heater front side wall, the upper end of fire grate assembly is positioned at position on the upper side in the middle part of the rear wall of body of heater, namely the lower steel pipe of fire grate assembly is positioned at the position on the lower side, middle part of body of heater front side wall, the upper steel pipe of fire grate assembly is positioned at position on the upper side in the middle part of the rear wall of body of heater, plane and the angle of horizontal plane that upper and lower steel pipe is formed are 0-10 °, and namely the angle of inclination of fire grate assembly is 0-10 °.One end of upper and lower steel pipe is closed, the other end is open, outside one end of the opening of upper and lower steel pipe extends to body of heater left side wall or right side wall (as Fig. 1,2), be connected with cooling water pipe, cooling water is introduced the fire grate assembly in flue, lowers the temperature for fire grate assembly.
Flat fire grate main body is made up of many (selecting 4 in this utility model detailed description of the invention, be generally selected 2-5 root) steel pipe arranged in parallel and that be spaced, and the spacing distance between adjacent two steel pipes is 4-10mm.Upper steel pipe, lower steel pipe are positioned at the two ends of fire grate main body steel pipe, are mutually perpendicular to the steel pipe constituting fire grate main body, and upper and lower steel pipe connects each other with the steel pipe constituting fire grate main body, is internally formed passage,
The upper and lower steel pipe of this utility model fire grate assembly is integral with the many steel-pipe weldings constituting fire grate main body, and upper and lower steel pipe connects at weld each other with the steel pipe of composition fire grate main body, form passage, namely upper steel pipe together with fire grate main body steel-pipe welding, the axis of lower steel pipe are mutually perpendicular to the axis of the steel pipe of composition fire grate main body, and communicate with each other at weld.Cooling water is passed in the steel pipe of fire grate assembly,
The flame retardant coating (not indicating in figure) of outer surface one layer of thickness >=10mm being made up of refractory material of attachment of the steel pipe of composition fire grate main body, flame retardant coating not only can prevent steel pipe to be burned, extend steel pipe physical life, be conducive to the carrying out of gasification counter-combustion process, by the mode of water-cooled, condensed water can be passed into according to in-furnace temperature and steel tube surface temperature in fire grate steel pipe, fire grate carried out cooling process again, reduce the temperature of stoker surface, extend the fire grate life-span further.When in-furnace temperature too high (>=900 DEG C); affect the service life of steel pipe; fire grate can be played cooling, the effect protected to passing into condensed water in steel pipe; and while protection fire grate; condensed water within fire grate is owing to absorbing heat; portion of water can be changed into steam; owing to fire grate has certain angle of inclination; the steam produced can up move automatically; thus getting rid of from the upper steel pipe of fire grate, then the steam of generation is passed into the effect that timber can play inside timber heat modification device heating and damping.
Fuel enters flue from charging aperture, under the support of fire grate assembly, fuel burns in the upper combustion chamber above fire grate assembly, the scorching hot charcoal produced in fuel completely and the combustion process of not burning enters lower combustion chamber under gravity and burns away, the flue gas produced in upper combustion chamber in combustion process is under the effect of smoke exhaust fan, enter lower combustion chamber and carry out second-time burning, the part do not burnt completely in upper combustion chamber is burnt again, make full combustion of fuel, black smoke gas and then what generation was cleaned in a large number heat smoke will not be produced.Fuel (garbage in agriculture, woods, animal husbandry, residue etc.) can make it fully burn by twice combustion, and burning completely, reduces the discharge of pollutant.
The following describes the gasification, and combustion of this utility model gasified combustion apparatus and produce the work process of heat smoke.
One, anti-burning gasification energy supply
1, such as Fig. 5, close the just burning chimney valve 29 just burnt in floss hole of the left and right sides, open top cover 26, by biomass fuel (the such as agriculture and forestry organic waste material, industrial wood waste of plant origin, straw etc.) add to from charge door in the flue 3 of counter-burning type gasification furnace 1 of gasified combustion apparatus of the present utility model, and opened smoke-discharging blower fan and the auxiliary in opening the auxiliary oxygen feeding tube 31,32 of the left and right sides enter oxygen valve 33；
2, under the drive of smoke exhaust fan, fresh air enters from top-feed mouth, in upper combustion chamber and when oxygen-limited condition, carries out gasification counter-combustion, continuously generates combustible gas and plants source biomass charcoal；
3, generate combustible gas and plant the little granule charcoal of source biomass behind the gap of fire grate assembly, enter lower combustion chamber, oxygen outside body of heater enters lower combustion chamber from auxiliary oxygen feeding tube, auxiliary oxygen feeder, combustible gas and biomass carbon are fully burnt, the amount of heat produced is under the drive of smoke exhaust fan, through exhanst gas outlet, enters heat smoke passing away, it is then discharged out gasified combustion apparatus, it is provided that thermal source.
Compared with directly burning, gasified combustion apparatus of the present utility model can improve energy utilization rate more than 10%, can reduce in a large number simultaneously and plant the dust and black smoke produced in the direct combustion process of source biomass.
Two, energy supply is just being burnt
1, such as Fig. 6, closing top cover, open the just burning chimney valve just burning in floss hole of the left and right sides, the auxiliary simultaneously closed off in the auxiliary oxygen feeding tube of the left and right sides enters oxygen valve, and opening body of heater is upper lower furnace door；Relatively slower owing to just burning process, oxygen demand is not as big, and oxygen enters mainly through the fire door of body of heater.
2, the biomass fuel of plant origin burns in upper combustion chamber, namely normal burning gasification, and combustion is carried out, burning produces the heat smoke carrying heat under the effect of smoke exhaust fan or the natural air exhaust of heat smoke passing away, the auxiliary oxygen feeder just burning exhaust gases passes, the auxiliary oxygen feeding tube of the left and right sides, the left and right sides of the left and right sides is flowed separately through successively from the floss hole that just burns of the left and right sides being positioned at flue top, subsequently into lower combustion chamber, eventually pass exhanst gas outlet, enter heat smoke passing away, discharge gasified combustion apparatus, it is provided that thermal source.
When needs insulation or system blackout, it may be achieved slowly just burn, be unlikely to lifting furnace temperature sharply.
In heat modification process, to heat demand amount bigger time (except insulation and have a power failure time), adopt anti-process of burning, specific as follows:
1) garbage to be combusted is added furnace interior, and close top cover；
2) open fire door, and garbage in stove is lighted；
3) fire door and just boiled pass are closed, and opened smoke-discharging blower fan and assist oxygen feeder；
4) open heat supply blower fan, carry out heat exchange, heat is introduced inside thermal chamber；
5) after inboard wall of burner hearth burning is red, inside fire grate, pass into moisture, cool down and protect fire grate；
6) when furnace interior waste combustion half, opening bell increases fuel to furnace interior.
When heat modification process needing be incubated, open just boiled pass, just burn.
Claims (10)
1. a gasified combustion apparatus, it is characterized in that, including gasification counter-combustion stove (1), heat smoke passage (4), just burn exhaust gases passes (23,24), wherein: described heat smoke passage is positioned at the rear side of gasification counter-combustion stove, and integral with the body of heater of gasification counter-combustion stove be connected and be connected with gasification counter-combustion stove；The described exhaust gases passes that just burning is arranged on the left and right sides of gasification counter-combustion stove, integral with the body of heater of gasification counter-combustion stove be connected and be connected with gasification counter-combustion stove.
2. gasified combustion apparatus as claimed in claim 1, it is characterized in that, described gasification counter-combustion stove includes body of heater (2), flue (3), exhanst gas outlet (5), fire grate assembly (6), and wherein said body of heater (2) is overall is cuboid-type or square build；The flue (3) of furnace interior is the cavity of rectangle for cross section, forms gasification combustion chamber；Described fire grate assembly is arranged on the middle part of flue, and flue is divided into upper and lower combustor (7,8)；Described exhanst gas outlet is arranged on the sidewall of lower combustion chamber.
3. gasified combustion apparatus as claimed in claim 2, is characterized in that, described exhanst gas outlet is arranged on the bottom of the rear wall of described body of heater, and runs through rear wall, is connected with described heat smoke passage.
4. gasified combustion apparatus as claimed in claim 2 or claim 3, it is characterized in that, described fire grate assembly (6) includes in flat fire grate main body (61) and is positioned at the upper steel pipe (62) at the upper and lower two ends of main body, lower steel pipe (63), wherein, fire grate main body is fixing with upper and lower steel pipe to be connected, and be interconnected, form the passage of flow of cooling water.
5. gasified combustion apparatus as claimed in claim 4, is characterized in that, described fire grate main body is formed by many steel pipes are arranged in parallel, and spaced-apart relation between steel pipe.
6. gasified combustion apparatus as claimed in claim 4, is characterized in that, outer surface attachment one layer of flame retardant coating being made up of refractory material, the wherein thickness >=10mm of flame retardant coating of the steel pipe of described fire grate assembly.
7. gasified combustion apparatus as claimed in claim 2 or claim 3, it is characterized in that, the left side wall of described body of heater, right side wall middle and lower part be respectively provided with auxiliary oxygen feeder (20,30), and assist the auxiliary oxygen feeding tube (31,32) that oxygen feeder extends to 2 outside gasification counter-combustion furnace body to be respectively connected, air or oxygen outside body of heater is imported furnace interior, provides oxygen for the fuel combustion in flue.
8. gasified combustion apparatus as claimed in claim 7, is characterized in that, the exhanst gas outlet (5) of the rear wall bottom arranging position with being opened in body of heater of described auxiliary oxygen feeder (20,30) is positioned at same level.
9. gasified combustion apparatus as claimed in claim 7, it is characterized in that, described auxiliary oxygen feeding tube (31,32) is connected with described just burning exhaust gases passes (23,24) respectively, send entering the heat smoke just burning in exhaust gases passes into described lower combustion chamber, then enter described heat smoke passage through described exhanst gas outlet (5), and then discharge gasification counter-combustion device.
10. gasified combustion apparatus as claimed in claim 2 or claim 3, it is characterized in that, the left side wall of described body of heater, right side wall top offer respectively and just burning floss hole (27,28), and just burning floss hole to be connected with described just burning exhaust gases passes (23,24) respectively, for gasification furnace when just the mode of burning is burnt in employing, heat smoke burning produced is derived from upper combustion chamber, flows into and is just burning exhaust gases passes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521075554.4U CN205351297U (en) | 2015-12-22 | 2015-12-22 | Gasification burner |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521075554.4U CN205351297U (en) | 2015-12-22 | 2015-12-22 | Gasification burner |
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| CN205351297U true CN205351297U (en) | 2016-06-29 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106196004A (en) * | 2015-12-22 | 2016-12-07 | 北京林业大学 | A kind of gasified combustion apparatus |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106196004A (en) * | 2015-12-22 | 2016-12-07 | 北京林业大学 | A kind of gasified combustion apparatus |
| CN106196004B (en) * | 2015-12-22 | 2018-08-21 | 北京林业大学 | A kind of gasified combustion apparatus |
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Granted publication date: 20160629 Termination date: 20201222 |