CN104613489A - Treatment device for flue gas caused by waste incineration - Google Patents
Treatment device for flue gas caused by waste incineration Download PDFInfo
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- CN104613489A CN104613489A CN201510037822.1A CN201510037822A CN104613489A CN 104613489 A CN104613489 A CN 104613489A CN 201510037822 A CN201510037822 A CN 201510037822A CN 104613489 A CN104613489 A CN 104613489A
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- flue gas
- dedusting
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Abstract
The invention relates to a flue gas treatment device, in particular to a treatment device for flue gas caused by waste incineration. The treatment device for the flue gas caused by waste incineration is used for innocent treatment of waste. Currently, activated carbon adsorption is performed through a wet method high-pressure spraying dedusting and mediums on which no water loss or drying treatment is performed, the temperature condition requirement of adsorption is not met at all, and a treatment result of flue gas which is purified and then exhausted through adsorption is not very ideal. The treatment device comprises a flue gas desulfurization and dedusting chamber, a flue gas cooling chamber and a chemical neutralization reaction chamber, wherein the flue gas desulfurization and dedusting chamber is communicated with a plurality of smoke guiding pipes of the flue gas cooling chamber, the flue gas cooling chamber is communicated with the chemical neutralization reaction chamber through a smoke collecting and passing chamber, and cold water spaces are arranged on the walls of the flue gas desulfurization and dedusting chamber and the chemical neutralization reaction chamber and communicated with the flue gas cooling chamber. The small treatment device for the flue gas is matched with a waste incineration furnace, flue gas treatment efficiency is high, and the device is used in combination with other matched units used for wet method flue gas treatment and dry method flue gas treatment.
Description
Technical field
The present invention relates to a kind of flue gas processing device, particularly a kind of a kind of flue gas of refuse burning treating apparatus for rubbish processing to be harmless.
Background technology
The raising of environmental standard and the common people, to the raising of environment sensing, itself refer to again a higher requirement for incineration treatment of garbage technology.Existing market incineration treatment of garbage level, to be objective, has advanced level, also has very backward level, specifically multi-level.
The patented technology document of China Patent No. ZL200820036393.1 discloses the patented technology of the supporting flue gas processing device of a kind of incinerator.Its main technical schemes is: removing incinerator main part, the smoke processing system device be made up of multiple-unit component, is followed successively by flow velocity control member, turbulent flue gas flow road and high-pressure spraying disjunctor component, charcoal absorption room, air-introduced machine, exhaust system.
Flow velocity control member is that the column of smoke body direct stress of a flowing changes component.Enter the flue gas in component with body of heater main chimney flue, under the effect of medium conduction external force, impact the column of smoke body of selenodont smoke barrier.Direct stress forms shear stress rapidly, utilizes the flow process concentrating dispersion to concentrate again to control flow and flow velocity.Turbulent flow flue gas flow road and high-pressure spraying disjunctor component, mainly flue gas with turbulent road in set by disorderly hook rub bump against after enter high-pressure spraying room with vertical jump in succession state.HP shower has mixed desulfurization and dedusting process with the smoke contacts flowed of taking advantage of a situation in high-pressure spraying indoor.Charcoal absorption component is connected to by pipeline by the flue gas after high-pressure spraying.Be provided with in adsorption chamber inside 2 groups of active carbon frames stagger one on the other row example.Flue gas flows to exhanst gas outlet around the charcoal frame that active carbon is housed, and is sent to flue gas emission by conductive medium air-introduced machine.
From technique scheme display, play a role clearly in the velocity field controlling flow of flue gas, but utilizing the dedusting of wet method high-pressure spraying and and then do not making the medium of any desiccation process.Carry out charcoal absorption, do not meet the temperature conditions of absorption completely, the fume treatment result of its emission abatement is not very desirable.
In sum, except above-mentioned defect, synthesize in the temperature control measures taked stopping dioxin, do not take any effective measures, the flue gas discharged contains dioxin synthetic and other harmful substance, so technically or existing defects, is incomplete.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, the flue gas processing device that a kind of small refuse incinerator is supporting is provided, treatment effeciency is high, structure and operation sequence fairly simple, operating cost is low, be combined with other matching unit of flue gas wet-treating or dry process, also can directly dock and use by outlet flue total with incinerator.Can the flue gas of modified emission abatement effectively, increase another processing scheme, realize the harmless treatment to rubbish.
the object of the invention is by following technical scheme realize:
A kind of flue gas of refuse burning treating apparatus, comprise between flue gas desulfurization and dedusting, flue gas cooling chamber, chemical neutralization reative cell, be communicated with the branched smoke pipe of leading of flue gas cooling chamber between said flue gas desulfurization and dedusting, flue gas cooling chamber is crossed smoke-box by collection cigarette and is communicated with chemical neutralization reative cell, between flue gas desulfurization and dedusting, be all provided with cold water space with the wall of chemical neutralization reative cell, cold water space is communicated with flue gas cooling chamber.
The physical unit tackling and shake off bulky grain flue dust is provided with between said flue gas desulfurization and dedusting, the unsettled plate of the transverse direction configured by subdivision forms, according to smoke density value, laterally unsettled plate is repeatedly repeated with same cell location, control the velocity field of flow of flue gas, velocity field itself will connect a unit with a unit and repeat, and also will show a kind of similitude in temperature field simultaneously.The horizontal unsettled plate of this physical unit is under the effect of stress impact, the unsettled plate of all transverse directions produces resonance and forms f wave, with flue gas at the spaced winding of the unsettled plate of each transverse direction to the coefficient of friction acting in conjunction produced time transboundary, effectively can tackle and shake off bulky grain flue dust.
In fume treatment flow process, whether most important the temperature height low value of flue gas is, said flue gas cooling chamber is provided with cooling water tank, transboundary flue gas is carried out diverted flow at branched smoke pipe of leading, branched smoke pipe of leading is put among water cooling water completely, branched smoke pipe of leading serves double action, namely branched lead in smoke pipe lead cigarette heat absorption, tube wall realizes cold and hot exchange, reduces cigarette temperature.For reaching the object of the rapid cooled flue gas of energy, cooling water tank top is provided with sending out the hot fan.The set import and export mouth of a river, takes flat perseverance to circulate mode, shortens the time of staying of water in casing after heat exchange.Be respectively arranged with flue gas barrier plate in each branched outlet leading smoke pipe simultaneously, one is realize the guiding to flow of flue gas, two is control the flowing velocity of flue gas in pipeline, it is allowed to produce backflow, the time of staying be allowed to condition in pipeline is a little longer, improve flue gas cooling effect, for next part fume treatment provides suitable temperature conditions.
Said chemical neutralization reative cell is made up of a chemical neutralization reative cell and secondary chemical neutralization reative cell two parts, cross smoke-box inside at collection cigarette and be provided with flue gas guiding barrier plate, flue gas guiding barrier plate not only can control the velocity field of flow of flue gas, can also elongate the gas approach distance with a chemical neutralization reative cell.Flue gas can be assembled by the backward upper space of buffering, increases smoke density, forms back-pressure, impel the aerosol water containing micronic dust to fall into polywater bucket, prevents further and reduce flue dust to enter a chemical neutralization reative cell.All grid type is designed at the smoke entrance of a chemical neutralization reative cell.Top is provided with reaction material supply operating means, regulates the import of pumping board reaction material to form by Xiao's lime powder bin and reaction promoter storehouse.The vertically superposed position of import of entering the room on a chemical neutralization reative cell top and reaction material is provided with a stainless steel ball, 360 ° are evenly equipped with aperture, under the air blast effect of outside adapted, reaction material can be carried out fully merging to be atomized reacting with flue gas, transpiring moisture, reacted flue dust and heavy metal particles thing fall into poly-dirt bucket, regularly open unloading valve cleaning.
At secondary chemical neutralization reative cell removing smoke inlet and outlet, be exactly an independently space, increase chemical neutralization reacting chamber space and time boil-off gas fog dry flue gas.
The another distinguishing feature of this device between flue gas desulfurization and dedusting, is all provided with cold water space with the wall of chemical neutralization reative cell be communicated with flue gas cooling chamber, lower the temperature rapidly for high-temperature flue gas and provide another corresponding measure, improve real variable relation in physical significance, become the flue gas processing device of simple actual effect and energy-conserving and environment-protective.
Described flue gas of refuse burning handling process is:
A, flue gas desulfurization and dedusting stage: flue gas taps between flue gas desulfurization and dedusting by smoke treatment inlet tube, in the way of transboundary flowing, laterally unsettled plate is under the effect of stress impact, the unsettled plate of all transverse directions produces resonance and forms f wave, with flue gas at the spaced winding of horizontal unsettled plate to the coefficient of friction acting in conjunction produced time transboundary, effectively can tackle and shake off bulky grain flue dust;
B, flue gas cooling stage: the flue gas remove bulky grain flue dust in transboundary way between flue gas desulfurization and dedusting after flows to branched smoke pipe of leading and carries out diverted flow, branchedly lead heat absorption tube wall and cooling water in smoke pipe and realize cold and hot exchange and reduce cigarette temperature, allow realizing the hot gas that cold and hot exchange produces afterwards and discharged by sending out the hot fan rapidly;
C, collection cigarette spend the cigarette stage: flue gas enters collection cigarette and crosses in smoke-box process the barrier plate buffer-oriented that leads with flue gas, the velocity field of flow of flue gas not only can be controlled at this, the gas approach distance with a chemical neutralization reative cell can also be elongated, flue gas can be assembled by the backward upper space of buffering, increase smoke density, form back-pressure, impel the aerosol water containing micronic dust to fall into polywater bucket, prevent and reduce flue dust entering a chemical neutralization reative cell further;
D, a chemical neutralization stage of reaction: enter the flue gas of a chemical neutralization reative cell under the prerequisite of forced convection, chemical reaction material can warm response abundant with flue gas, transpiring moisture while atomization reaction, dry flue gas, falls into bottom by the heavy metal particles thing after reactive adsorption and gathers dirt bucket;
E, the secondary chemical neutralization stage of reaction: after flue gas enters secondary chemical neutralization reative cell, elongate chemical reaction space length and reaction time effect, continues transpiring moisture, further dry flue gas.
beneficial effect of the present invention is:
The flue gas processing device that a kind of small refuse incinerator is supporting is provided, fume treatment efficiency is high, structure and operation sequence fairly simple, operating cost is low, check that cleaning easily, the scope of application is unaffected, is combined with other matching unit of flue gas wet-treating or dry process, also can directly dock and uses by outlet flue total with incinerator.Can the flue gas of modified emission abatement effectively, increase another processing scheme, realize the harmless treatment to rubbish.
Accompanying drawing explanation
Fig. 1 is the main TV structure schematic diagram of a kind of flue gas of refuse burning treating apparatus of the present invention;
Fig. 2 is a kind of flue gas of refuse burning treating apparatus of the present invention plan structure schematic diagram.
Detailed description of the invention
As shown in Figure 1 and Figure 2, to the present invention includes between flue gas desulfurization and dedusting 1, flue gas cooling chamber 2, chemical neutralization reative cell 4,5, between said flue gas desulfurization and dedusting, 1 is communicated with the branched smoke pipe 11 of leading of flue gas cooling chamber 2, flue gas cooling chamber 2 is crossed smoke-box 3 by collection cigarette and is communicated with chemical neutralization reative cell 4,5, between flue gas desulfurization and dedusting 1 and the wall of chemical neutralization reative cell 4,5 be all provided with cold water space 8, cold water space 8 is communicated with flue gas cooling chamber 2.
Between said flue gas desulfurization and dedusting, (1) is provided with smoke treatment inlet tube and connects (7), flue gas connects (7) from smoke treatment inlet tube and enters (1) between flue gas desulfurization and dedusting, is provided with the physical unit tackling and shake off bulky grain flue dust in the way that between flue gas desulfurization and dedusting, (1) inherent flue gas is transboundary.The unsettled plate of said transverse direction (6) is fixed on component parts (12), component parts (12) is weldingly fixed on top cover lid (10), for ease of periodic cleaning interior space impurity, this component parts (12) is a movable placement member, be beneficial to and increase unsettled plate amplitude, between flue gas desulfurization and dedusting, (1) top is configured with top cover lid 10, is convenient to open top cover lid 10 face contact points and joins sealing gasket, with leakproof cigarette.Between said flue gas desulfurization and dedusting, (1) bottom is provided with dust fall bucket (13), and dust fall bucket (13) bottom is provided with unloading valve (25), reaches a certain amount of and just opens unloading valve 25, shed laying dust, and accomplish to carry out successively in order.
Flue gas remove bulky grain flue dust in (1) transboundary way between flue gas desulfurization and dedusting after flows to branched smoke pipe (11) of leading and carries out diverted flow, branched smoke pipe (11) of leading is placed among the cooling water of cooling water tank completely, serve double action respectively, namely branchedly lead heating tube wall and cooling water in smoke pipe (11) and realize cold and hot exchange and reduce cigarette temperature.Can the object of rapid cooled flue gas for reaching, the top of cooling water tank is provided with sending out the hot fan 14, allows realizing the hot gas that cold and hot exchange produces afterwards and discharge rapidly.The peripheral top board 28 of exhaust duct is depicted as reinforcing gusset for being connected and fixed in sending out the hot fan 14, figure 24.In order to the recirculated water time of staying in cooling water tank making flat constant current dynamic is reasonable, increase the quality of cold and hot exchange, cooling water tank is provided with cooling water inlet (22) and flowing delivery port (23), and whole exchange water body is that flat perseverance circulates state, increases cooling effect.
Said branched smoke pipe (11) of leading is respectively arranged with flue gas guiding barrier plate 30 in respective branched pipe outlet.Simple flue gas guiding barrier plate 30 can fully demonstrate the practical function suggested by two physical phenomenons, one is that flue gas is obstructed and produces certain backflow to increase the branched density domination flow of flue gas speed leading smoke pipe (11) interior flue gas, and increase flue gas is in the branched lifting leading time of staying in smoke pipe (11) and heat exchange coefficient; Two is that flue gas can elongate the flow distance with an exhanst gas outlet chemical neutralization reative cell (4) by flue gas guiding barrier plate 30 to flowing.Flue gas can assemble smoke density by the backward upper space of buffering constantly to be increased, form back-pressure, the aerosol containing micronic dust is impelled just to fall into polywater bucket, collection cigarette is crossed smoke-box (3) bottom and is provided with aerosol water outlet pipe and connects (26), utilize aerosol water outlet pipe to connect 26, connecting pipe is to chemical reaction system transport process.
Said chemical neutralization reative cell (4,5) be made up of chemical neutralization reative cell (4) and secondary chemical neutralization reative cell (5) two parts, is all arranged to grid type or sieve mesh type in the gas approach (31) of a chemical neutralization reative cell (4), both outlets (32).Sharp flue gas in reative cell lateral flow ripple at the uniform velocity flow regime.Said chemical neutralization reative cell (4) top is provided with reaction material and places bucket (15), it is a chemical neutralization reaction material actuation means, reaction material places bucket (15) point Xiao's lime powder bin and reaction promoter storehouse, reaction material is placed bucket (15) top and is provided with reaction promoter dispensing port matching cap (20) and slaked lime powder dispensing port matching cap (21), and reaction material placement bucket (15) bottom is provided with reaction promoter and regulates pumping board (16) and slaked lime powder to regulate pumping board (17).Chemical neutralization reative cell (4) internal upper part and the reaction material vertically opposite position of answering of mouth of entering the room is provided with stainless steel ball 19, and stainless steel ball 19 is distributed with the passage of evenly rule around 360 °.Stainless steel ball 19 body pipeline is connected to the outside air blast 18 configured, and under being allowed to condition at the prerequisite of forced convection, reaction material can warm response abundant with flue gas, transpiring moisture dry flue gas while atomization reaction.One time chemical neutralization reative cell (4) bottom is set to poly-dirt bucket, and poly-dirt bucket bottom is provided with unloading valve (27), falls into bottom and gathers dirt bucket, regularly open unloading valve 27 and clear up by the heavy metal particles thing after reactive adsorption.
Said secondary chemical neutralization reative cell (5) is a space not arranging any dysfunction thing, and chemical reaction space length and reaction time effect are elongated in its effect, continue transpiring moisture, further dry flue gas.Secondary chemical neutralization reative cell (5) rear portion is provided with smoke outlet tube and connects (9), connects other depth optimization process component or direct UNICOM exhaust system with pipeline.
Between flue gas desulfurization and dedusting, being all provided with cold water space 8 is communicated to flue gas cooling chamber 2 simultaneously for (1) and chemical neutralization reative cell (4,5) physical feature peripheral, lower the temperature rapidly for high-temperature flue gas and provide another corresponding measure, improve real variable relation in physical significance, embody the simple actual effect of this flue gas processing device, energy-conserving and environment-protective.
Described flue gas of refuse burning handling process is:
A, flue gas desulfurization and dedusting stage: flue gas connects (7) by smoke treatment inlet tube and enters (1) between flue gas desulfurization and dedusting, in the way of transboundary flowing, laterally unsettled plate (6) is under the effect of stress impact, the unsettled plate of all transverse directions (6) produces resonance and forms f wave, with flue gas at the spaced winding of horizontal unsettled plate (6) to the coefficient of friction acting in conjunction produced time transboundary, effectively can tackle and shake off bulky grain flue dust;
B, flue gas cooling stage: the flue gas remove bulky grain flue dust in (1) transboundary way between flue gas desulfurization and dedusting after flows to branched smoke pipe (11) of leading and carries out diverted flow, branchedly lead heat absorption tube wall and cooling water in smoke pipe (11) and realize cold and hot exchange and reduce cigarette temperature, allow realizing the hot gas that cold and hot exchange produces afterwards and discharged by sending out the hot fan (14) rapidly;
C, collection cigarette spend the cigarette stage: flue gas enters collection cigarette and crosses in smoke-box (3) process barrier plate (30) buffer-oriented that leads with flue gas, the velocity field of flow of flue gas not only can be controlled at this, the gas approach distance with a chemical neutralization reative cell (4) can also be elongated, flue gas can be assembled by the backward upper space of buffering, increase smoke density, form back-pressure, impel the aerosol water containing micronic dust to fall into polywater bucket, prevent and reduce flue dust entering a chemical neutralization reative cell (4) further;
D, a chemical neutralization stage of reaction: enter the flue gas of a chemical neutralization reative cell (4) under the prerequisite of forced convection, chemical reaction material can warm response abundant with flue gas, transpiring moisture while atomization reaction, dry flue gas, falls into bottom by the heavy metal particles thing after reactive adsorption and gathers dirt bucket;
E, the secondary chemical neutralization stage of reaction: after flue gas enters secondary chemical neutralization reative cell (5), elongate chemical reaction space length and reaction time effect, continues transpiring moisture, further dry flue gas.
Above principle is only in order to illustrate, and unrestricted technical scheme of the present invention, do not depart from any modification or partial replacement of spirit and scope of the invention, all should be encompassed in the middle of right of the present invention.
Claims (10)
1. a flue gas of refuse burning treating apparatus, it is characterized in that: comprise (1) between flue gas desulfurization and dedusting, flue gas cooling chamber (2), chemical neutralization reative cell (4,5), between said flue gas desulfurization and dedusting, (1) is communicated with the branched smoke pipe (11) of leading of flue gas cooling chamber (2), flue gas cooling chamber (2) is crossed smoke-box (3) by collection cigarette and is communicated with chemical neutralization reative cell (4,5), between flue gas desulfurization and dedusting, the wall of (1) and chemical neutralization reative cell (4,5) is all provided with cold water space (8), and cold water space (8) is communicated with flue gas cooling chamber (2).
2. a kind of flue gas of refuse burning treating apparatus according to claim 1, is characterized in that: between said flue gas desulfurization and dedusting, (1) is provided with interception and shakes off the physical unit of bulky grain flue dust.
3. a kind of flue gas of refuse burning treating apparatus according to claim 1 and 2, is characterized in that: the unsettled plate of the transverse direction that said physical unit is configured by subdivision (6) forms, and repeatedly repeats laterally unsettled plate (6) at same cell location.
4. a kind of flue gas of refuse burning treating apparatus according to claim 1, it is characterized in that: the unsettled plate of said transverse direction (6) is fixed on component parts (12), component parts (12) is a movable placement member, and component parts (12) is weldingly fixed on top cover lid (10).
5. a kind of flue gas of refuse burning treating apparatus according to claim 1 or 4, is characterized in that: between said top cover lid (10) and flue gas desulfurization and dedusting, (1) this face contact point joins sealing gasket.
6. a kind of flue gas of refuse burning treating apparatus according to claim 1 or 4, is characterized in that: between said flue gas desulfurization and dedusting, (1) bottom is provided with dust fall bucket (13), and dust fall bucket (13) bottom is provided with unloading valve (25).
7. a kind of flue gas of refuse burning treating apparatus according to claim 1, is characterized in that: between said flue gas desulfurization and dedusting, (1) is provided with smoke treatment inlet tube and connects (7).
8. a kind of flue gas of refuse burning treating apparatus according to claim 1, is characterized in that: said flue gas cooling chamber (2) is provided with cooling water tank.
9. a kind of flue gas of refuse burning treating apparatus according to claim 1 or 8, is characterized in that: be provided with in said cooling water tank and branchedly lead smoke pipe (11), be placed in completely among cooling water by branched smoke pipe (11) of leading.
10. a kind of flue gas of refuse burning treating apparatus according to claim 1 is for the treatment of the method for flue gas, it is characterized in that: described flue gas of refuse burning handling process is:
A, flue gas desulfurization and dedusting stage: flue gas connects (7) by smoke treatment inlet tube and enters (1) between flue gas desulfurization and dedusting, in the way of transboundary flowing, laterally unsettled plate (6) is under the effect of stress impact, the unsettled plate of all transverse directions (6) produces resonance and forms f wave, with flue gas at the spaced winding of horizontal unsettled plate (6) to the coefficient of friction acting in conjunction produced time transboundary, effectively can tackle and shake off bulky grain flue dust;
B, flue gas cooling stage: the flue gas remove bulky grain flue dust in (1) transboundary way between flue gas desulfurization and dedusting after flows to branched smoke pipe (11) of leading and carries out diverted flow, branchedly lead heat absorption tube wall and cooling water in smoke pipe (11) and realize cold and hot exchange and reduce cigarette temperature, allow realizing the hot gas that cold and hot exchange produces afterwards and discharged by sending out the hot fan (14) rapidly;
C, collection cigarette spend the cigarette stage: flue gas enters collection cigarette and crosses in smoke-box (3) process barrier plate (30) buffer-oriented that leads with flue gas, the velocity field of flow of flue gas not only can be controlled at this, the gas approach distance with a chemical neutralization reative cell (4) can also be elongated, flue gas can be assembled by the backward upper space of buffering, increase smoke density, form back-pressure, impel the aerosol water containing micronic dust to fall into polywater bucket, prevent and reduce flue dust entering a chemical neutralization reative cell (4) further;
D, a chemical neutralization stage of reaction: enter the flue gas of a chemical neutralization reative cell (4) under the prerequisite of forced convection, chemical reaction material can warm response abundant with flue gas, transpiring moisture while atomization reaction, dry flue gas, falls into bottom by the heavy metal particles thing after reactive adsorption and gathers dirt bucket;
E, the secondary chemical neutralization stage of reaction: after flue gas enters secondary chemical neutralization reative cell (5), elongate chemical reaction space length and reaction time effect, continues transpiring moisture, further dry flue gas.
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Application publication date: 20150513 |