A kind of Two-way Cycle turbulent bed incinerator with ashtray
Technical field
A kind of Two-way Cycle turbulent bed incinerator with ashtray is the utility model is related to, for rubbish the like waste and biology
The burning of matter, belongs to field of combustion equipment.
Background technology
Recirculating fluidized bed is because it has the characteristics that fuel tolerance is wide, high combustion efficiency, in offal treatment and biomass
Also favored in heat utilization.But simple outer circulation type combustion apparatus furnace structure is huge, initial cost is high.And it is simple in follow
Ring type combustion apparatus is then often complicated.To solve the problems, such as this, " a kind of eddy flow incinerator "(CN 104848230 B)Carry
Go out the eddy flow incinerator that a kind of burner hearth centre is wide, upper and lower both sides are narrow, pass through the setting of the reverse Secondary Air of two-stage, intensifying device
Internal eddy flow and disturbance, improve and strengthen circulation in material.
But due in discarded object, biomass often containing the alkali metal such as higher K, Na, it is higher into grey viscosity, easily by
Dust stratification bonds on hot face.On the other hand, in the relatively low material burning process of biomass one kind ash content, supplement bed material is generally required.
Utility model content
The purpose of this utility model is to provide a kind of Two-way Cycle turbulent bed incinerator with ashtray, high combustion efficiency
Meanwhile the and vertical wall ash deposition of reduction.
The utility model is achieved through the following technical solutions:
A kind of Two-way Cycle turbulent bed incinerator with ashtray, the incinerator include burner hearth, intermediate zone and connection
Feed separation and material-returning device in intermediate zone outlet;The feed separation and material-returning device include separator and connection institute
State the separator inlet flue of separator and the intermediate zone, and material returning device;The burner hearth include being formed it is middle wide, on
Under narrow variable cross-section space lower cone section and upper cone section;The burner hearth bottom is equipped with blast cap and an air compartment;In an air compartment
Circulation in material is formed under the cloth wind of blast cap, in the variable cross-section space of the burner hearth;It is characterized in that:The incinerator also wraps
Ashtray is included, the ashtray is arranged in the intermediate zone, and the ashtray includes to move under in the vertical direction
Water-supply-pipe and be arranged on the nozzle of water delivery pipe end, be symmetrically arranged with several hole for water sprayings on the nozzle;The nozzle erects
Directly it is arranged in the intermediate zone, as water-supply-pipe moves up and down.
In above-mentioned technical proposal, the ashtray sets one, is arranged on intermediate zone axial centerline.
In above-mentioned technical proposal, water-cooling screen is set, the water-cooling screen separates intermediate zone in the intermediate zone
Into at least section;The ashtray sets at least two, is separately positioned on the intermediate zone section that the water-cooling screen separates
Center.
In above-mentioned technical proposal, the water-supply-pipe of the ashtray selects heating resisting metal hose.The nozzle of the ashtray is
Weight type shape.The nozzle(7)On several described hole for water sprayings into being symmetrical arranged.
The utility model has the following advantages and beneficial effect:The setting of upper lower cone section makes freeze profile into following in material
Ring, plus the outer circulation of separation returning charge, Two-way Cycle make it that material burning is more abundant, primary pollutant is lower;The setting of ashtray,
Intermediate zone wall dust stratification can effectively be removed.
Brief description of the drawings
Fig. 1 is a kind of Two-way Cycle turbulent bed incinerator schematic diagram with ashtray involved by the utility model.
Fig. 2 is a kind of Two-way Cycle turbulent bed incinerator ashtray arrangement signal with ashtray involved by the utility model
Figure.
Fig. 3 is that a kind of Two-way Cycle turbulent bed incinerator with ashtray involved by the utility model sets one of water-cooling screen
When ashtray arrangement schematic diagram.
Fig. 4 is that a kind of Two-way Cycle turbulent bed incinerator with ashtray involved by the utility model sets twice water-cooling screen
When ashtray arrangement schematic diagram.
In figure:1- burner hearths;2- intermediate zones;3- separators;4- separator inlet flues;5- material returning devices;6-
Water-supply-pipe;7- nozzles;Air compartment of 8-;9- blast caps;10- water-cooling screens;11- combustion zones furnace wall;12- upper cone sections;13-
Lower cone section.
Embodiment
Specific embodiment of the present utility model and the course of work are further described below in conjunction with the accompanying drawings.
The orientation such as upper, lower, left, right, front and rear in present specification term be based on position relationship shown in the drawings and
Establish.Attached drawing is different, then corresponding position relationship is also possible to change therewith, therefore cannot be interpreted as with this to protecting model
The restriction enclosed.
As shown in Figure 1, a kind of Two-way Cycle turbulent bed incinerator with ashtray, the incinerator includes burner hearth 1, secondary combustion
Burn area 2 and be connected to the feed separation and material-returning device of the outlet of intermediate zone 2.Feed separation and material-returning device include separator
3 and the connection separator 3 and the separator inlet flue 4 of the intermediate zone 2, and material returning device 5.Burner hearth 1 includes shape
Into the lower cone section 13 and upper cone section 12 in middle wide, upper and lower narrow variable cross-section space, lower cone section 13 forms flaring section to external expansion, and
Upper cone section 12 forms tapered cross-section to contract.1 bottom of burner hearth is equipped with blast cap 9 and an air compartment 8, and blast cap 9 selects wind cap.
By an air compartment 8 and the cloth wind of blast cap 9, then coordinate the staged air distribution measure such as secondary air distribution, shape in the variable cross-section space of burner hearth 1
Circulation loop in into material.Rubbish the like waste and biomass form violent turbulence, carry significantly when fuel burns in burner hearth 1
High burnout rates and efficiency of combustion.Part flying dust is with flue gas uplink, and unburnt gas component is in prismatic intermediate zone 2
Interior further burning is complete.Band cloud of dust gas enters separator 3 by separator inlet flue 4 and carries out gas solid separation, after separation
Flue gas carries out follow-up facility, and the flying dust separated returns to burner hearth 1 by material returning device 5, and feed back point is usually in upper cone section 10.Material
The Matter Transfer of separation and material-returning device constitutes the outer circulation circuit of the incinerator.Refractory material is usually laid in burner hearth 1.
And intermediate zone wall is metal or water-cooling wall.
Since the fuel ash such as rubbish the like waste and biomass are low and are rich in alkali metal, the grey caking property after burning is very
It is high.Intermediate zone easily produces sticky ash deposition.Therefore, incinerator is also provided with ashtray, and the ashtray is arranged on two
In secondary combustion zone 2, water-supply-pipe 6 that the ashtray includes move under in the vertical direction be arranged on 6 end of water-supply-pipe
Nozzle 7, is symmetrically arranged with several hole for water sprayings on the nozzle 7;Several hole for water sprayings are uniformly distributed on nozzle 7 and symmetrical, will be from
Uniform, the multidirectional combustion zone furnace wall 11 for spraying to intermediate zone 2 of the lower mesohigh water of the spray of water-supply-pipe 6, the water vapor of ejection are produced
Raw impact force, removes the dust stratification on combustion zone furnace wall 11.The nozzle 7 is vertically arranged in the intermediate zone 2, with defeated
Water pipe 6 moves up and down.The water-supply-pipe 6 of ashtray selects heating resisting metal hose, easy to flexible.The nozzle 7 of ashtray is Weight type,
Set easy to sagging and water spray pore size distribution.
As shown in Fig. 2, when not having water-cooling screen in intermediate zone 2, the ashtray sets one, is arranged on secondary combustion
Burn 2 axial centerline of area.
When setting water-cooling screen 10 in intermediate zone 2, intermediate zone 2 is separated into relatively separated area by water-cooling screen 10
Between, the ashtray sets at least two, is separately positioned on the centre bit in 2 section of intermediate zone that the water-cooling screen 10 separates
Put.As shown in figure 3, when setting one of water-cooling screen 10 in intermediate zone 2, intermediate zone 2 is separated into two sections, therefore
Ashtray sets 2, the center in section where each ashtray is all disposed within.Such as Fig. 4, set when intermediate zone 2 is interior
During twice water-cooling screen 10, intermediate zone 2 is separated into three sections, therefore ashtray sets 3, and each ashtray is all disposed within
The center in place section.