CN103994446B - A kind of slag separation assembly and apply the circulating fluid-bed incinerator of this assembly - Google Patents

Abstract

The invention belongs to garbage incinerating system field, be specifically related to a kind of slag separation assembly and apply the circulating fluid-bed incinerator of this assembly.Slag separation assembly includes cylinder, and cylinder is offered charging aperture, and cylinder body bottom offers discharging opening；Cylinder lateral wall is from top to bottom arranged with helical groove along its axis and/or is convexly equipped with helical form guide rail；The circulating fluid-bed incinerator applying this slag separation assembly the most at least includes main burning chamber and flue, arranges heat energy utilization assembly at flue, and described slag separation assembly is located between main burning chamber and flue；The port of export of helical groove and/or helical form guide rail connects the furnace chamber of main burning chamber and arranges.Its processing mode of present invention intelligence and convenient, automatable realize uncombusted slag efficiently sort treatment effect, the most effectively reduce the labor intensity of operator, while implementing the slag separating effect of its assembly, functional reliability and the high efficiency of incinerator body self is effectively ensured.

Description

A kind of slag separation assembly and apply the circulating fluid-bed incinerator of this assembly

Technical field

The invention belongs to garbage incinerating system field, be specifically related to a kind of slag separation assembly and answer With the circulating fluid-bed incinerator of this assembly.

Background technology

In circulating fluid-bed incinerator unit, generally by the equipment structure such as Burning Room, gas-solid separator Become combustion system (that is material circulating system)；With water-cooling wall, superheater, economizer, air Preheater and back-end ductwork constitute the thermal energy exchange transmission system of incinerator；Constituted with cleaner unit etc. and burnt Burn the flue gas purification system of stove；It is driven to its series circulation power with the wind energy of blower fan between each.Real During the work of border, rubbish is in the burning Indoor Combustion of incinerator, and its heat energy produced is by Burning Room room Many thermal energy exchange assemblies such as the water-cooling wall on wall or even each flue furnace wall are drawn, and water-cooling wall will The heat drawn conducts to its internal water storage, and water is heated and produces vapours rising, and vapours enters Post bake in heater, the hot dry saturated steam after steam trap carries out aqueous vapor separation is from setting Dry saturated steam in furnace roof exports gets rid of and enters outside Steam Turbine, thus drives it to rotate to realize Its industrial value；Air preheater and economizer are then arranged in flue, to ensure for treating into burning The air of burning room tentatively heats purpose with the cold water in water-cooling wall to be entered.

Above-mentioned incinerator structure, it at least needs to reach for the burning indoor temperature of burning domestic garbage To 800 degrees Celsius of high temperature above, and flue gas stops about 3 seconds in Burning Room, could be conducive to Realize the pyrolytic purpose to two English and various harmful gas；And due to current house refuse by In moisture content problem, self calorific value is relatively low, the water-cooling wall pipeline arranged in adding Burning Room, often Cause the reduction burning Indoor Combustion temperature on the contrary, be not only difficult to meet the heat of outside Steam Turbine The hard requirement of dry saturated steam, after the burning that this body of heater finally gives off simultaneously, gas is contained within a large amount of two The harmful substances such as English, thus surrounding is caused secondary pollution.Nowadays, some producer causes Power is in passing through to release water-cooling wall in square Burning Room, and only arranges in flue that water-cooling wall carries out water The mode of heating, promotes the intrinsic ignition temperature in Burning Room；But, due to current Burning Room Structure of furnace body feature, water-cooling wall is not only the heating carrier as water, also serves as body of heater simultaneously The load carrier of upper thermal insulation fire-resistant mud, thermal insulation fire-resistant mud is dual internal water cold wall and outside furnace shell It is unlikely to just now under clamping to topple over, once takes out water-cooling wall, just how to ensure whole square furnace Often work and be unlikely to collapse and just become a difficult problem.There is again some producer by steel rod is hammered into guarantor The mode of temperature fire clay carries out the attachment of thermal insulation fire-resistant mud, in order to realize fire clay for body of heater Heat-insulating property, but, on the one hand, rod is while hammering into thermal insulation fire-resistant mud, and himself is also Become heat carrier, thus be prone to conduct the high temperature of accumulation not at all easy in Burning Room；Another Aspect, fire clay uses environmental requirement the harshest, for the life that water content is bigger for it Rubbish, fire clay the most just along with dilution shortcakeization phenomenon, needs artificial frequent maintenance； Additionally, the setting as the cyclone separator of gas-solid separator there is also problem, traditional circulation sulfur Fluidized-bed incineration stove unit, is still employing extraction hot-air and carries out heat energy utilization, and its sub-argument is gone out Solid slag optionally returns to main burning chamber or directly carries out discharge process, no matter it is so-called " optionally " complex operation brought and the problem of the operating experience requirement to operator, single If opinion high-temp solid slag needs discharge and finally cause atmosphere outside, it is necessary for passing through The forced cooling operations such as substantial amounts of direct water-cooling, its resource occupation amount is big and running cost is high, simultaneously The huge heat that originally can recycle wasted again, thus give site operation personnel and burn Burn operation producer and bring greatly puzzlement.

Summary of the invention

One of them purpose of the present invention is to provide a kind of rational in infrastructure and the slag of practicality separates Assembly, its processing mode intelligence and convenient, automatable realize incinerator in draw institute in hot blast Be mingled with uncombusted slag efficiently sorts treatment effect, and the work the most effectively reducing operator is strong Degree；Its another purpose is then to provide a kind of circulating fluid-bed applying above-mentioned slag separation assembly Incinerator, thus while implementing the slag separating effect of its assembly, burning is effectively ensured The functional reliability of furnace body self and high efficiency.

For achieving the above object, present invention employs techniques below scheme:

A kind of slag separation assembly, including possessing the cylinder of cylindric hollow cavity, cylinder runs through Its barrel offers for slag input and provides blast so that slag produces in cylinder lumen centrifugal dynamic The charging aperture made, each other in different surface beeline between the discharging path of described charging aperture and cylinder lumen axis Arranging, described cylinder body bottom offers the discharging opening of connection cylinder lumen and external processing apparatus；Institute State and be from top to bottom arranged with helical groove along its axis at cylinder lateral wall and/or be convexly equipped with helical form Guide rail, the bearing of trend of described helical groove and/or helical form guide rail and the slag of cylinder lumen Centrifugal rotation direction arrange in the same direction, the port of export of helical groove and/or helical form guide rail runs through Cylinder and be communicated to outside reclaimer.

Described slag separation assembly profile is the straight barrel shape of axis plumbing arrangement, and its bottom possesses Funnel-form bottom surface and its bottom surface least significant end constitute discharging opening, the discharging path of charging aperture and cylinder lumen Between axis, spatial vertical is arranged；Cylinder radially direction the most at least include urceolus shell, Cylinder heat-preservation cotton layer, inner core shell and cylinder fire brick layer；Described helical groove is resistance to along cylinder The recessed screw arrangement of firebrick layer inwall.

A kind of circulating fluid-bed incinerator applying slag separation assembly, at least include main burning chamber with And it is arranged in the flue communicating therewith layout of main burning chamber's side, heat energy utilization group is set at flue Part, described slag separation assembly is located between main burning chamber and flue；Entering of slag separation assembly Material mouth connects the heat energy exit of main burning chamber's upper end, its discharging opening connection chimney intake end cloth Put；The port of export of described helical groove and/or helical form guide rail connects the furnace chamber cloth of main burning chamber Put.

Described main burning chamber the most at least includes that outer furnace shell layer, furnace insulation are cotton Layer, interior furnace shell layer and body of heater fire brick layer, its outer furnace shell layer, furnace insulation cotton layer, interior furnace shell Layer and body of heater fire brick layer collectively form the hollow circuit cylinder tubular layer structure of main burning chamber.

Described flue is overall in horizontal layout, heat energy utilization assembly include hanging in flue for The water-cooling wall of water storage heating and in communication being positioned at flue outer wall for performing steam separation Steamdrum；Below flue, place is provided with the discharge funnel for storing up slag and ash discharge.

Described discharge funnel is that multiple and along flue length direction is sequentially arranged, with above-mentioned cloth successively The discharge funnel put is string, and described discharge funnel is the symmetric double Column Layout being arranged in juxtaposition.

It is provided with at the port of export of described discharge funnel and stirs roller for control its load.

Described main burning chamber lower end is provided with inlet air plenum, inlet air plenum is arranged and is used for providing burning wind-force Blast cap, each blast cap is integrally formed the burning basal plane of main burning chamber；Deslagging it is disposed with in main burning chamber Mouthful, described slag-drip opening is positioned in the middle part of inlet air plenum and runs through to be arranged bottom main burning chamber；Described heat energy profit Also include being arranged in the air heater at flue outlet end, going out of described air heater with assembly Wind end is communicated at inlet air plenum.

Described main burning chamber side-walls there also is provided secondary air inlet；The air-out of described secondary air inlet Path orthogonal main burning chamber axis and both be different surface beeline arrange.

It is arranged in juxtaposition between described main burning chamber and slag separation assembly, the furnace chamber opposite side of main burning chamber Place is arranged symmetrically with the charging channel for charging.

Main advantages of the present invention are as follows:

1), abandon solid slag produced by conventional cyclone and get rid of difficulty, to operator Member's skill requirement is high, complex operation or even Solid state fermentation effect is undesirable and high cost etc. is a series of Defect, with the layout of cylindrical cavity, it is ensured that the slag high action kinetic energy under centrifugal action； Arrange with the oblique antarafacial of charging aperture, namely charging aperture discharging path and tubular axis space intersection cloth The mode put, guarantees the formation of cylinder internal coiling wind direction；What is more important, to be attached to cylinder The guide rail of the downward spiral layout at internal wall or the design of groove, on slag edge under Action of Wind pressure During cylinder inboard wall spiral-falling, the relative weight that big quality has been burned in other words conj.or perhaps the most completely is heavier Slag can " being got rid of " in above-mentioned guide rail or groove, and along above-mentioned formation of postponing " track " and Lasting guides under wind-force effect, and the outside finally being directed to specify along its port of export is returned In receiving unit (being such as arranged at the furnace chamber of the incinerator of side), the quality in slag is the lightest After-flame slag ash etc. after dust and completely burning enters external processing apparatus the most therewith, and (such as heat energy returns Receipts utilize system) in, thus realize release and the recovery of its stored heat；Its simple in construction and make Convenient by, processing mode intelligence, draw in heat energy in can efficiently realizing incinerator and be mingled with not The automated sorting treatment effect of after-flame slag.

It practice, be only used as comparing language for descriptions such as above-mentioned " slags that relative weight is heavier ", This is because the slag burned in incinerator has burnt totally under high thermostatic effect, even if There is unburned part, the slag can drawn by the heat energy exit of incinerator, itself weight Measure the most suitable light, so could rise with wind-force and be escaped into stove by incinerator upper end In slag separation assembly realization process, and be brought out and unburnt slag quality necessarily ratio burning totally The weight of ashes to weigh；Therefore, its blast can effectively be ordered about the slag of respective quality Produce along its groove and the impelling of guide rail and centrifugal extraction action, and the ashes kicked the beam and burning are completely Slag ash the most quickly rotate and draw process, finally without relying on the reality of operator Operating experience, and the slag targetedly that system itself can complete its high efficiency is automatically separated effect Really, additionally, originally need the lag cooler in old-fashioned cyclone separator discharging opening configuration to be no longer necessary to, The most just greatly reduce wind-force originally or even waterpower cooling cost, simultaneously its waste originally A large amount of after-flame after heat slags be directly entered flue, make the heat energy utilization of flue improve further, The real work efficiency of each heat energy utilization assembly in being effectively improved flue eventually.

2), the present invention is when practical operation, it is not necessary to fire clay and directly using cylinder fire brick layer as Its innermost layer, constructs produced internally extrusion stress with the cylinder barrel shaped of cylinder self, thus shuts out The probability that absolutely refractory brick is inwardly toppled over；Meanwhile, the probability that refractory brick pours out is then by outward Each barrel shell layer of layer is limited, and finally while effectively guaranteeing himself insulating power, ensures again The working strength demand of cylinder self；In addition, in view of entering that current cyclone separator is possessed The sidewall in air port offers structure, and cylindrical barrel is obviously more suitable for being internally formed around distinguished and admirable, wind Power is able in cylinder constantly Cyclic Rings around circulation, so that being easier to inside it form equilibrium Centrifugal rotation environment；Sidewall designs structure without the naked brick body of fire clay, also provides said spiral shape The layout basis of groove, its work safety is stable.

3) the traditional square structure that, instant invention overcomes conventional incinerators is led after abandoning water-cooling wall The many defects caused, on the one hand still use and the heat energy parts such as water-cooling wall are arranged in setting at flue Meter structure, thus avoid what old-fashioned Burning Room caused because of heat sink work such as inwall water-cooling walls The defect of furnace temperature intensification difficulty, it is ensured that the high constant temperature demand in Burning Room, with rubbish in guaranteeing stove While the efficient combustion of rubbish, the influence degree for context is even removed in great reduction from； On the other hand, abandoned heat energy and loss problem that rod fastening structure caused and covered fire-resistant Cost that mud is caused and maintenance issues, with the incinerator cavity wall structure of multi-ply construction, its effect with Above-mentioned slag separation assembly in like manner, so that it is determined that the functional reliability of himself and high constant temperature rubbish burn Burning demand, the temperature rise environment of its internal balance, effectively ensure that normally may be used of whole burning system By work.

4), the actual arrangement of flue be as the criterion with horizontal layout, on the one hand it ensure that whole installation is tied The compactedness of structure, on the other hand, the layout of horizontal flue, in turn ensure that the portion such as each water-cooling wall on it Part heating surface be difficult to dust stratification, slag separation assembly process and the part dust that goes out and at cigarette The dust of later stage after-flame in road, when being carried out transverse shifting by flue naturally along being arranged at below The discharge funnel at place produces effect of settling, eventually through the most quantitatively deashing of discharge funnel, comes really Protect and reduce the stifled stove phenomenon of useless ash and reduce the tail gas treatment device work load in later stage.

5) it practice, stir the layout of roller at each discharge funnel, its purpose is i.e. to reach phase Answer quantitative ashes and the timing of combustion slag of parts or even quantitatively discharge purpose；Particularly the present invention's This occasion the highest to the thermal requirements of temperature in flue, the design structure of quantitative deslagging, Can in being prevented effectively from it temperature with respective row cinder notch a large amount of dischargings and directly loss go out same Time, can be effectively ensured again at respective row cinder notch and can possess the preferable ashes specified or combustion slag thickness all the time Degree, to remain the constant high temperature specified in guaranteeing flue；Above-mentioned preferable ashes or combustion slag thickness Holding, on the one hand ensure that ashes or combustion slag thickness were unlikely to thin and caused being incubated in it Effect, on the other hand is unlikely to again to make its thickness blocked up and affect body of heater real work, achieves many things at one stroke, Finally provide favourable for the reliable and efficiency operation in flue to ensure.

6), the setting of biserial discharge funnel, allow for the setting of the internal web beam of current flue Structure, be all the most directly to run through composition, its web beam the most directly lie across in Flue stage casing, carries out structure here by biserial discharge funnel and evades, thus ensure that it lays position The job stability put；Same, small and dense discharge funnel is than overall and large-scale ash discharge portion For part, can also can ensure that the wide-angle ash discharge of himself while its volume of guarantee is the smallest and the most exquisite Face demand is set so that useless ash is easier to produce downslide effect along discharge funnel, finally guarantee The efficient ash discharge demand of whole ash discharge unit.

7), the layout of blast cap, it is provided that inlet air plenum for the air feed oxygen delivery capacity of main burning chamber's furnace chamber, And the air heater connecting inlet air plenum also ensure that the profit of efficient heat energy of heat energy utilization assembly While with, in turn ensure that air feed at inlet air plenum distinguished and admirable preheat requirement, thus be main burning chamber Interior high constant temperature burns provides basic guarantee；The layout of secondary air inlet, it is ensured that in main burning chamber Wind-force burns effect for the spiral pushing of material, the most also can be with the burning heat energy of upper up-flow in it Common effect, thus reach the purpose effectively upwards drawn by heat energy in main burning chamber, the most also Ensure that the reliable fuel requirements of slag separation assembly.In addition, at main burning chamber two side pair Claim the charging channel arranged, it is ensured that uniformity during charging, and be positioned at the row arranged in the middle part of blast cap Cinder notch, sidewall discharging different from the past, then in order to preferably guarantee slag in main burning chamber Purpose is discharged in equilibrium, is unlikely to produce the accumulation of slag because of sidewall discharging and block up because of imbalance of pressure The phenomenons such as plug slag-drip opening, achieve many things at one stroke.

Accompanying drawing explanation

Fig. 1 is the planar structure schematic diagram of the present invention；

Fig. 2 is the relative location drawing under vertical view state of the structure shown in Fig. 1；

Fig. 3 is that the right side of Fig. 1 regards schematic diagram；

Fig. 4 is the cross-sectional view of main burning chamber；

Fig. 5 is the cross-sectional view of slag separation assembly.

In figure, the corresponding relation of each label toponym each with the present invention is as follows:

10-cylinder 10a-urceolus shell 10b-cylinder heat-preservation cotton layer

10c-inner core shell 10d-cylinder fire brick layer 11-charging aperture 12-discharging opening

The outer furnace shell layer of 13-helical groove 20-main burning chamber 20a-

Furnace shell layer 20d-body of heater fire brick layer in 20b-furnace insulation cotton layer 20c-

21-inlet air plenum 22-blast cap 23-slag-drip opening 24-secondary air inlet 25-feeds channel

Air inlet 30-flue 31a-of 26-stirs roller 31-discharge funnel

41-water-cooling wall 42-steamdrum 43-air heater

Detailed description of the invention

For ease of understanding, the assembly being specifically described the present invention here in connection with Fig. 1-5 constructs and concrete Workflow:

The concrete structure of the present invention can refer to shown in Fig. 1-5, including frame section and the layout on basis The cylindrical tube shape main burning chamber 20 being used for burning away the refuse on frame section, main burning chamber 20 is respectively Including the outer furnace shell layer 20a arranged from outside to inside, furnace insulation cotton layer 20b, interior furnace shell layer 20c And body of heater fire brick layer 20d, main burning chamber 20 side is sequentially arranged and automatically divides for carrying out slag From slag separation assembly and for receive slag separation assembly discharge after-flame slag ash and remain The flue 30 that waste heat energy utilizes, after in main burning chamber 20, high temperature incineration produces high temperature hot gas, this height Warm gas is carried out in being mingled with fraction solids after-flame slag ash and uncombusted slag entrance slag separation assembly Slag separates, and due to the weight relationships before and after the after-flame of slag, unburnt slag is vectored back to main Continuing in Burning Room 20 to burn, the slag ash of after-flame then enters in flue 30, and is deposited in discharge leakage Struggle against at 31 and to heat such as the such as air heater 43 arranged at flue 30 inwall and water-cooling walls 41 Assembly can be utilized to heat, thus complete its final calorific value and utilize purpose.And such as Fig. 1-2 institute Showing, whole flue 30 is outer forms horizontal layout, preferably to realize slag ash under blast is agitated Be scattered on the way purpose, it is ensured that its heat energy make full use of effect.

The layout of blast cap 22, it is provided that inlet air plenum 21 supplies for the air feed of main burning chamber 20 furnace chamber Oxygen ability, inlet air plenum 21 is by air inlet 26 air feed, and connects in inlet air plenum 21 once The air heater 43 of air inlet 26 also utilizes at the efficient heat energy that ensure that heat energy utilization assembly While, in turn ensure that air feed at inlet air plenum 21 distinguished and admirable preheat requirement, thus be main burning High constant temperature in room 20 burns provides basic guarantee；The layout of secondary air inlet 24, it is ensured that main In Burning Room 20, wind-force burns effect for the spiral pushing of material, the most also can be with rising in it The common effect burning heat energy of stream, thus reach effectively upwards to be drawn by heat energy in main burning chamber 20 The purpose gone out, the most also ensures that the reliable fuel requirements of slag separation assembly.

During practical operation of the present invention, rubbish is constantly burnt in main burning chamber 20, temperature in it Constantly rising to higher constant temperature, now its heat energy is drawn also by the heat energy exit of main burning chamber 20 Enter slag separation assembly therewith, finally formed the spiral shell possessing certain kinetic energy by slag separation assembly Rotation heat energy wind bundle is also mingled with part after-flame and uncombusted slag and pours in flue 30；Due to after-flame The light weight of slag ash and high floating, the slag ash that its heat energy wind bundle is mingled with the afterburnt is directly entered flue 30, under follow-up wind-force effect, start the slowest advancing along flue 30, and finally its band has surplus heat After-flame slag ash deposition in discharge funnel 31, it is achieved thereby that its with flue 30 in heat energy profit With the heat exchange effect each other of assembly, and the unburnt stove wrapped in slag separation assembly Slag, then conduct oneself with dignity due to it, and directly thrown to helical groove 13 and therewith by again by blast It is back at main burning chamber 20 carry out second-time burning, and then the most just while guaranteeing slag after-flame Achieve again the effect up to standard of ashes thickness in main burning chamber 20；Arrange at ash discharge funnel 31 dials Action roller 31a then can realize the most quantitatively ash discharge function of its funnel, and then guarantees to reduce the stifled stove of useless ash The work load of the tail gas treatment device in phenomenon and reduction later stage.Certainly, for ensureing the cigarette of the present invention The smoke outlet in road 30 will not produce dewing corrosion phenomenon because flue 30 internal-external temperature difference is excessive, It is also possible to consider by the setting of air heater 43, when above-mentioned hot blast is water cooled the omnidistance heat absorption of wall 41 After, its waste heat is overheated by air heater 43 again, after tail EGT holding preference temperature again It is emitted into lower road exhaust treatment system；Discharge by retaining this temperature, be finally the tail of flue 30 Portion is not likely to produce dewing corrosion and provides Reliable guarantee.

Claims (10)

1. a slag separation assembly, it is characterised in that: include possessing cylindric hollow cavity Cylinder (10), cylinder (10) runs through its barrel offer for slag input and provide blast with Slag is made to produce the charging aperture (11) of centrifugal action in cylinder lumen, described charging aperture (11) Arrange in different surface beeline each other between discharging path and cylinder (10) inner chamber axis, described cylinder (10) Bottom offers the discharging opening (12) of connection cylinder (10) inner chamber and external processing apparatus；Described Cylinder (10) side-walls is from top to bottom arranged with helical groove (13) and/or convex along its axis It is provided with helical form guide rail, described helical groove (13) and/or the bearing of trend of helical form guide rail Arrange in the same direction with the centrifugal rotation direction of the slag of cylinder (10) inner chamber, helical groove (13) And/or the port of export of helical form guide rail runs through cylinder (10) and is communicated to outside reclaimer.

A kind of slag separation assembly the most according to claim 1, it is characterised in that: described Slag separation assembly profile is the straight barrel shape of axis plumbing arrangement, and its bottom possesses funnel-form Bottom surface and its bottom surface least significant end constitute discharging opening (12), the discharging path of charging aperture (11) and cylinder Between body (10) inner chamber axis, spatial vertical is arranged；Cylinder (10) radially direction is by outer The most at least include urceolus shell (10a), cylinder heat-preservation cotton layer (10b), inner core shell (10c) And cylinder fire brick layer (10d)；Described helical groove (13) is along cylinder fire brick layer (10d) The recessed screw arrangement of inwall.

3. the circulating fluid-bed applying slag separation assembly as claimed in claim 1 burns Stove, it is characterised in that: at least include main burning chamber (20) and be arranged in main burning chamber (20) The flue (30) communicating therewith layout of side, flue (30) place arranges heat energy utilization assembly, Described slag separation assembly is located between main burning chamber (20) and flue (30)；Slag divides Charging aperture (11) from assembly connects the heat energy exit of main burning chamber (20) upper end, its Discharging opening (12) connection flue (30) entrance point is arranged；Described helical groove (13) and/ Or the furnace chamber layout of port of export connection main burning chamber (20) of helical form guide rail.

Circulating fluid-bed incinerator the most according to claim 3, it is characterised in that: described Main burning chamber (20) the most at least includes that outer furnace shell layer (20a), body of heater are protected The cotton layer (20b) of temperature, interior furnace shell layer (20c) and body of heater fire brick layer (20d), its outer furnace shell Layer (20a), furnace insulation cotton layer (20b), interior furnace shell layer (20c) and body of heater fire brick layer (20d) the hollow circuit cylinder tubular layer structure of main burning chamber (20) is collectively formed.

5. according to the circulating fluid-bed incinerator described in claim 3 or 4, it is characterised in that: Described flue (30) is overall in horizontal layout, and heat energy utilization assembly includes hanging on flue (30) In the water-cooling wall (41) for water storage heating and in communication be positioned at flue (30) outward For performing the steamdrum (42) that steam separates at wall；Flue (30) lower section at be provided with for Storage slag and the discharge funnel (31) of ash discharge.

Circulating fluid-bed incinerator the most according to claim 5, it is characterised in that: described Discharge funnel (31) is that multiple and along flue (30) length direction is sequentially arranged, with above-mentioned The discharge funnel (31) being sequentially arranged is string, and described discharge funnel (31) is for being arranged in juxtaposition Symmetric double Column Layout.

Circulating fluid-bed incinerator the most according to claim 6, it is characterised in that: described It is provided with at the port of export of discharge funnel (31) and stirs roller (31a) for control its load.

8. according to the circulating fluid-bed incinerator described in claim 3 or 4, it is characterised in that: Described main burning chamber (20) lower end is provided with inlet air plenum (21), and inlet air plenum arranges use on (21) In the blast cap (22) of offer burning wind-force, each blast cap (22) is integrally formed main burning chamber (20) Burning basal plane；Slag-drip opening (23), described slag-drip opening (23) it is disposed with in main burning chamber (20) It is positioned at inlet air plenum (21) middle part and runs through main burning chamber (20) bottom layout；Described heat energy profit The air heater (43) being arranged at flue (30) port of export, described sky is also included with assembly The outlet air end of hot-air heater (43) is communicated to inlet air plenum (21) place.

Circulating fluid-bed incinerator the most according to claim 8, it is characterised in that: described Main burning chamber (20) side-walls there also is provided secondary air inlet (24)；Described secondary air inlet (24) Air-out path orthogonal main burning chamber's (20) axis and both be different surface beeline arrange.

Circulating fluid-bed incinerator the most according to claim 8, it is characterised in that: institute State and be arranged in juxtaposition between main burning chamber (20) and slag separation assembly, the stove of main burning chamber (20) The charging channel (25) for charging it is arranged symmetrically with at the opposite side of chamber.