CN208011734U - A kind of device of flue gas shunting processing Jian Pai bioxin - Google Patents

Abstract

A kind of device of flue gas shunting processing Jian Pai bioxin of the utility model, belongs to technical field of waste treatment.The utility model includes flue gas shunting unit and garbage pre-heating unit, the end of the shunting escape pipe of flue gas shunting unit is provided with baffle, the outlet for shunting escape pipe is divided into upper flue gas shunting mouth and lower flue gas shunting mouth by the baffle, and the lower flue gas shunting mouth is connected with garbage pre-heating unit；It is provided with charged section on flue gas shunting unit and deviates electric field section, deviate electric field section to be used to apply electric field force and the direction offset of downward flue gas shunting mouth to the charged particle thing in the flue gas after charged section, so that the content of particulate matter and pollutant substantially reduces in flue gas after waste incineration, and the waste heat in flue gas is utilized, and is more energy-saving and environmentally friendly.

Description

A kind of device of flue gas shunting processing Jian Pai bioxin

Technical field

The utility model belongs to technical field of waste treatment, and specifically a kind of flue gas shunting handles Jian Pai bioxin Device.

Background technology

Currently, domestic built garbage incinerating power plant mostly uses two kinds of skills of mechanical kiln grate furnace and fluidized bed incinerator Art.Mechanical kiln grate furnace combustion mechanism is that rubbish is directly burnt, and entire combustion process is carried out in a burner hearth, passes through fire grate Rubbish is constantly stirred and is promoted to slag-drip opening by the movement of block, carries out rubbish thoroughly by drying, burning, after-flame three phases After-flame, combustible component and harmful components in rubbish are thoroughly decomposed.Fluidized bed incinerator combustion mechanism is using a large amount of in stove High-temperature material as heat carrier, the heating of the rubbish in stove will be put into, and make in strong boiling stirring flammable in rubbish Ingredient and harmful components are thoroughly burned；Entire fire box temperature is evenly distributed, and 850-900 DEG C or so is maintained at, due to being stored in stove Heat is big, and granulated garbage and bed material contact heat transfer mass transfer rate are fast.

However, many different, complicated chemical reactions can occur during handling house refuse by the way of burning. This will inevitably bring some secondary pollutions, especially bioxin, heavy metal etc., and wherein bioxin is most malicious one kind Compound, once discharge is in air, it is difficult to natural degradation is eliminated, its toxicity is 130 times of cyanide, 900 times of arsenic, There is the title of " poison in century "；It is difficult to decompose, and concentrate and amplify along food chain after being taken in by organism, is endangered to human and animal Evil is huge, not only has carcinogenic, teratogenesis, mutagenicity, but also have endocrine.Studies have shown that persistence Influence of the organic pollution to the mankind can continue several generations, and significant threat is constituted to human survival, procreation and sustainable development.

At present it is believed that waste incineration is to generate the most production unit of dioxin pollutant, bioxin generates Mechanism mainly has high temperature gas phase reaction to generate and the generation of low temperature heterogeneous catalytic reaction.Refuse Incineration Process has bioxin generation All conditions：(1) chlorine comes from the organochlorine in garbage raw material and inorganic chlorine component；(2) carbon source is in uncombusted flying dust, Macromolecular carbon (coke, activated carbon, carbon black etc.) in such as chlorophenol, chlorobenzene or Polychlorinated biphenyls predecessor and flying dust；(3) it carries Deformation and vacant graphite-structure, butter, copper and iron metal ion, as catalyst；(4) oxidizing atmosphere, and burn Burn the 250-500 DEG C of temperature range (low temperature heterogeneous catalytic reaction) and 500-800 DEG C of temperature for existing in stove flue and generating bioxin It spends section (high temperature gas phase reaction).

According to statistics, China's city garbage burning has become the first big toxic pollutant emission source, bioxin row at present High-volume account for total release 17%.It is revised according to 2014 second《Consumer waste incineration pollutant emission standard》, at present I The concentration of all waste incinerator discharge dioxin in flue gas of state need to be less than 0.1ng-TEQ/Nm3, therefore, push waste incineration work Sequence Zhong bioxin emission-reduction technologies have very important realistic meaning.

Through retrieval, innovation and creation it is entitled：A kind of MSW Incineration Plant flue gas wet purification processing method and Device (number of patent application：201510701688.0 the applying date:2015.10.22), ammonium hydroxide quenching apparatus, spray Powdered Activated Carbon Device is connected with bag filter through ventilation pipe, and the air inlet end of ammonium hydroxide quenching apparatus can be with MSW Incineration Plant flue gas Outlet end be connected, be also connected with compressed air system on the ventilation pipe between ammonium hydroxide quenching apparatus and the last activated-carbon device that dusts System, the ash bucket of bag filter have compressed air system, which is connected with flying dust library through pipeline, and bag filter goes out Mouth flue is connected through pipeline with the washing concentrating section of wet type extracting tower, and wet type extracting tower includes absorber portion, washing concentrating section and oxygen Change section, is equipped with the nozzle that can spray ammonium hydroxide in the absorber portion of wet type extracting tower, smoke discharge tube road is connected with defogging equipment, wet The oxidation panel of formula extracting tower is connected with oxidation fan, ammonium chloride and ammonium sulfate delivery outlet and the crystallization of the oxidation panel of wet type extracting tower Equipment is connected.Although this application purifies the flue gas pollutant of waste incinerator, Dui bioxin emission reduction effects It is limited.

Utility model content

1. utility model technical problems to be solved

Utility model aims to solve a large amount of bioxin are led to the problem of in Refuse Incineration Process, a kind of cigarette is provided The device of qi leel stream process Jian Pai bioxin, including flue gas shunting unit and garbage pre-heating unit, flue gas shunting unit for pair Flue gas after burning is shunted, and the lower flue gas shunting mouth of flue gas shunting unit is connected with garbage pre-heating unit, garbage pre-heating list Member, which preheats MSW lump and absorbs reduction flue gas Zhong bioxin, not only effectively reduces waste incineration Yan gas Zhong bis- Evil Heat in flue gas is also recycled by the content of English and other pollutants so that waste incineration is more environmentally-friendly energy saving.

2. technical solution

In order to achieve the above objectives, technical solution provided by the utility model is：

The utility model a kind of flue gas shunting processing Jian Pai bioxin device, including flue gas shunting unit and rubbish it is pre- The end of hot cell, the shunting escape pipe of flue gas shunting unit is provided with baffle, which separates the outlet for shunting escape pipe For upper flue gas shunting mouth and lower flue gas shunting mouth, the lower flue gas shunting mouth is connected with garbage pre-heating unit；The flue gas shunting It is provided with charged section on unit and deviates electric field section, deviates electric field section and is used for the charged particle thing in the flue gas after charged section Apply electric field force and the direction offset of downward flue gas shunting mouth.

Preferably, angle is a, a=65~85 ° between the baffle and the tube wall of upper flue gas shunting mouth.

Preferably, the front end of the baffle is equipped with deflector, and the deflector is used to carry out charged section of flue gas out Water conservancy diversion makes it smoothly quickly enter lower flue gas shunting mouth.

Preferably, the garbage pre-heating unit includes waste conveyor, seal closure and bellows；The rubbish conveying dress It sets for carrying MSW lump, waste conveyor is provided at both ends with preheating feeding mouth and preheating discharge port, the rubbish conveying Device upper end is enclosed with seal closure, and the preheated air inlet pipe of seal closure upper end is connected to lower flue gas shunting mouth；Lower flue gas shunting mouth In garbage pre-heating unit with MSW lump heat exchange occurs for flue gas, and MSW lump is to the pollution in flue gas during heat exchange Object is adsorbed.

Preferably, the lower end of the lower flue gas shunting mouth is bend pipe, and the bend pipe is for so that flue gas flows smoothly.

Preferably, the angle between the front end tangent line c of the deflector and shunting escape pipe down tube wall is d, d=45~ 75°。

Preferably, the intersection point between the front end tangent line c of the deflector and shunting escape pipe down tube wall is b, and b is located off Within electric field section.

Preferably, the rubbish conveying direction of the waste conveyor and the airflow direction of preheated air inlet pipe are perpendicular.

Preferably, the bellows are equipped with preheating escape pipe, and the stage casing of the preheating escape pipe is equipped with aspiration pump, the bellows Cross-sectional area be gradually reduced from top to bottom.

3. advantageous effect

Using technical solution provided by the utility model, compared with prior art, have the advantages that：

(1) device of a kind of flue gas shunting processing Jian Pai bioxin of the utility model, including flue gas shunting unit and rubbish Rubbish preheating unit, flue gas shunting unit is for shunting the flue gas after burning, the lower flue gas shunting mouth of flue gas shunting unit It is connected with garbage pre-heating unit, garbage pre-heating unit, which preheats MSW lump and absorbs, reduces flue gas Zhong bioxin not only The content of waste incineration dioxin in flue gas and other pollutants is effectively reduced, the heat in flue gas is also subjected to recycling profit With so that waste incineration is more environmentally-friendly energy saving；

(2) device of a kind of flue gas shunting processing Jian Pai bioxin of the utility model, is arranged in flue gas shunting unit Charged section and deviate electric field section, by flue gas particulate matter and pollutant apply charge and by electric field into line displacement, keep it poly- Collection enters garbage pre-heating unit by lower flue gas shunting mouth and carries out adsorption cleaning in duct bottom so that particulate matter and pollution Object is adsorbed more thorough by garbage pre-heating unit；

(3) a kind of flue gas shunting of the utility model handles the device of Jian Pai bioxin, is arranged in garbage pre-heating unit Waste conveyor, waste conveyor is while conveying garbage agglomerate so that MSW lump contains particulate matter with after shunting Flue gas with pollutant more than 80% carries out contact heat-exchanging so that and particulate matter and pollutant in flue gas are adsorbed by MSW lump, Reduce the content of dioxin in flue gas and other pollutants.

Description of the drawings

Fig. 1 is the structural schematic diagram that a kind of flue gas shunting of the utility model handles the device of Jian Pai bioxin；

Fig. 2 is the work structuring figure that a kind of flue gas shunting of the utility model handles the device of Jian Pai bioxin.

Label declaration in schematic diagram：

100, waste incineration unit；110, incinerator；130, escape pipe is burned；140, discharge nozzle is burned；150, burn into Material mouth；

200, flue gas shunting unit；210, air inlet pipe is shunted；220, charged section；230, deviate electric field section；240, baffle； 241, deflector；250, escape pipe is shunted；251, upper flue gas shunting mouth；252, lower flue gas shunting mouth；253, bend pipe；

300, garbage pre-heating unit；310, waste conveyor；320, seal closure；321, discharge port is preheated；322, it preheats Air inlet pipe；323, feeding mouth is preheated；330, bellows；340, escape pipe is preheated；341, aspiration pump；

400, flue gas heat exchange unit；410, U-tube；420, heat exchanger tube；430, dust accumulation pipe；

500, flue gas ash removal unit；510, the first deduster；520, dedusting appendix；530, the second deduster；

600, chimney.

Specific implementation mode

The utility model is more fully retouched below with reference to relevant drawings for the ease of understanding the utility model, It states, several embodiments of the utility model is given in attached drawing, still, the utility model can come real in many different forms It is existing, however it is not limited to which that embodiment described herein makes public affairs to the utility model on the contrary, purpose of providing these embodiments is It is more thorough and comprehensive to open content.

It should be noted that when element is referred to as " being fixedly arranged on " another element, it can be directly on another element Or there may also be elements placed in the middle；When an element is considered as " connection " another element, it can be directly connected to To another element or it may be simultaneously present centering elements；Term as used herein " vertical ", " horizontal ", " left side ", " right side " and similar statement are for illustrative purposes only.

Unless otherwise defined, all of technologies and scientific terms used here by the article is led with the technology for belonging to the utility model The normally understood meaning of technical staff in domain is identical；Terminology used in the description of the utility model herein only be The purpose of description specific embodiment, it is not intended that in limitation the utility model；Term " and or " used herein includes Any and all combinations of one or more relevant Listed Items.

Embodiment 1

With reference to shown in attached drawing 1 and Fig. 2, a kind of device of flue gas shunting processing Jian Pai bioxin of the present embodiment, including rubbish Rubbish burns unit 100, flue gas shunting unit 200, garbage pre-heating unit 300, flue gas heat exchange unit 400 and flue gas ash removal unit 500, flue gas shunting unit 200 is connected to waste incineration unit 100 by pipeline, and flue gas shunting unit 200 is by waste incineration list Flue gas after member 100 is burned is shunted, and a part enters garbage pre-heating unit 300 by pipeline and preheated to MSW lump And absorb and reduce flue gas Zhong bioxin, another part enters the heat recovery and utilization in flue gas in flue gas heat exchange unit 400, Treated that flue gas enters flue gas ash removal unit 500 is dusted for flue gas heat exchange unit 400 and garbage pre-heating unit 300, dedusting Flue gas afterwards is discharged by chimney 600.

Waste incineration unit 100 in the present embodiment includes incinerator 110, burns escape pipe 130, burns discharge nozzle 140 With burning feeding mouth 150, for incinerator 110 for burning away the refuse, incinerator 110, which passes through, burns escape pipe 130 and flue gas shunting list Member 200 is connected to, and when MSW lump enters the burning of incinerator 110 from feeding mouth 150 is burned, the flue gas generated after burning passes through burning Escape pipe 130 enters flue gas shunting unit 200, and the rubbish ashes after burning are discharged by burning discharge nozzle 140.

Flue gas shunting unit 200 in the present embodiment includes shunting air inlet pipe 210, shunts escape pipe 250, charged section 220 With deviation electric field section 230, flue gas shunting unit 200 is connected to waste incineration unit 100 by shunting air inlet pipe 210, is distributed Tracheae 250 is horizontally disposed, and shunting air inlet pipe 210 is mutually perpendicular to shunting escape pipe 250, and the exit of shunting air inlet pipe 210 is set There is charged section 220, charged section 220 of exit, which is equipped with, deviates electric field section 230, the exit pipeline for deviateing electric field section 230 It is interior that outlet is divided into upper flue gas shunting mouth 251 and lower flue gas shunting mouth 252, upper flue gas shunting mouth 251 and cigarette equipped with baffle 240 Gas heat exchange unit 400 connects, and lower flue gas shunting mouth 252 is connect with garbage pre-heating unit 300.Flue gas after waste incineration enters When shunting air inlet pipe 210, deflect in shunting air inlet pipe 210 and 250 junction of shunting escape pipe, subsequently into charged section 220, particulate matter and pollutant in charged section of 220 pairs of flue gases apply positive charge, are applied in the particulate matter and pollutant of positive charge Into electric field section 230 is deviateed, it is anode to deviate 230 top of electric field section, and lower section is cathode, is applied in particulate matter and the dirt of positive charge In deviation electric field section 230 downward offset occurs for dye object, and the particulate matter and pollutant after being deviated by electric field can enter with flue gas Lower flue gas shunting mouth 252, and the flue gas containing particulate matter and pollutant less than 20% can enter upper flue gas shunting mouth 251, baffle 240 Water conservancy diversion can not only be played the role of, be also prevented from airborne dust.When particulate matter and pollutant are gathered in point under the action of electric field The lower end of tracheae 250 is flowed out, lower flue gas shunting mouth 252 is connected to garbage pre-heating unit 300, is equipped with and takes out in garbage pre-heating unit 300 Air pump 341, when aspiration pump 341 works, the flue gas of lower flue gas shunting mouth 252 can be under the active force of aspiration pump 341 to rubbish Preheating unit 300 is flowed, at this point, baffle 240 can be used for stopping that the flue gas of flue gas shunting mouth 251 moves down.

The front end of the baffle 240 of the present embodiment is equipped with deflector 241, and the deflector 241 is for coming out charged section 220 Flue gas carry out water conservancy diversion, so that it is smoothly quickly entered lower flue gas shunting mouth 252, the lower end of lower flue gas shunting mouth 252 is bend pipe 253, the bend pipe 253 is for making flue gas flow smoothly, front end tangent line c and shunting 250 times tube walls of escape pipe of deflector 241 Between angle be d, d=45~75 °, the present embodiment d is 50 °, the front end tangent line c of deflector 241 under shunting escape pipe 250 Intersection point between tube wall is b, and b is located off within electric field section 230.Be applied in electric load particulate matter and pollutant in electric field force Under the action of shift, when the particulate matter and pollutant after offset deviate electric field section 230 as flue gas leaves, flue gas can be by Enter lower flue gas shunting mouth 252 to the attraction of aspiration pump 341 in preheating unit 300, deflector 241 can to shunt escape pipe The flue gas of 250 lower end aggregated particle objects and pollutant more than 80% is quickly taken away, and can prevent top from containing particulate matter and dirt Dye object is disturbed less than 20% flue gas to be taken away.

Garbage pre-heating unit 300 in the present embodiment includes waste conveyor 310, seal closure 320 and bellows 330；Institute The waste conveyor 310 stated is provided with preheating feeding mouth 323 for carrying MSW lump, 310 one end of waste conveyor, should The preheating discharge port 321 of 310 other end of waste conveyor is connected with the burning feeding mouth 150 of waste incineration unit 100, described 310 upper end of waste conveyor is enclosed with seal closure 320, the preheated air inlet pipe 322 of 320 upper end of seal closure and lower flue gas shunting mouth 252 connections, the lower end of seal closure 320 are connected to bellows 330, and the cross-sectional area of the bellows 330 is gradually reduced from top to bottom, rubbish The rubbish conveying direction and the airflow direction of preheated air inlet pipe 322 of rubbish conveying device 310 are perpendicular so that flue gas and MSW lump Faster, effect is more preferable for the speed of heat exchange, and the lower end of bellows 330 is communicated with preheating escape pipe 340, preheats escape pipe 340 and flue gas Dedusting appendix 520 in dust removing units 500 is connected, and the stage casing of preheating escape pipe 340 is equipped with aspiration pump 341.MSW lump from It preheats feeding mouth 323 and enters waste conveyor 310, during being transported on waste conveyor 310, with preheated air inlet pipe The flue gas containing particulate matter and pollutant more than 80% that 322 conveyings come carries out contact heat-exchanging, and MSW lump is by flue gas In the process, temperature increases and adsorbs the particulate matter in flue gas and pollutant, the MSW lump after heat exchange from preheating discharge port 321 from Open the burning feeding mouth 150 that garbage pre-heating unit 300 enters waste incineration unit 100.And the flue gas after exchanging heat enters and preheats out Tracheae 340, aspiration pump 341 detach the flue gas in preheating escape pipe 340 so that flue gas can be smoothly from MSW lump It passes through, better adsorption particle object and pollutant, simultaneously, the air-flow in lower flue gas shunting mouth 252 can also be attracted, with Under the air-flow containing particulate matter and pollutant more than 80% outside 252 entrance of flue gas shunting mouth also with being attracted so that contain The flue gas of particulate matter and pollutant more than 80% can smoothly enter lower flue gas shunting mouth 252.

Flue gas heat exchange unit 400 in the present embodiment includes U-tube 410 and heat exchanger tube 420, and flue gas ash removal unit 500 wraps Include the first deduster 510, dedusting appendix 520 and the second deduster 530.The heat exchanger tube 420 is vertically installed in U-tube 410 Airflow direction, 410 one end of the U-tube is communicated with flue gas shunting mouth 251, and the other end is communicated with tapered dust accumulation pipe 430, The upper end side wall of dust accumulation pipe 430 is equipped with opening and is connected to dedusting appendix 520, and the bottom of dust accumulation pipe 430 is provided with the first dedusting Device 510,520 one end far from dust accumulation pipe 430 of the dedusting appendix are connected with the second deduster 530, second deduster 530 are communicated with chimney 600 by pipeline.U-tube in flue gas is from upper flue gas shunting mouth 251 into flue gas heat exchange unit 400 When 410, exchange heat with the heat exchanger tube 420 being vertically installed in U-tube 410, the flue gas after heat exchange enters dust accumulation pipe 430, quilt First deduster 510 purifies, and the particulate matter in flue gas is removed by the first deduster 510, and purified flue gas passes through dedusting gas transmission Pipe 520 is mixed with the flue gas from preheating escape pipe 340, and mixed flue gas enters the second deduster 530 and carries out final dusting, Flue gas after final dusting is given off by chimney 600.

The workflow of the equipment of the present embodiment is as follows：MSW lump enters waste incineration unit from feeding mouth 150 is burned It is burned in 100 incinerator 110, the rubbish ashes after burning are discharged by burning discharge nozzle 140, the cigarette generated after burning Gas enters the shunting air inlet pipe 210 of flue gas shunting unit 200 by burning escape pipe 130, then enters and shunting air inlet pipe 210 Vertically disposed shunting escape pipe 250, enter shunt escape pipe 250 during, in vertical corner, due to particulate matter and The quality of pollutant is more than gas, so particulate matter and pollutant can enter in pipeline after turn with respect to a side on the lower, and Enter charged section 220 afterwards.In charged section 220, particulate matter and pollutant can be loaded positive charge, be loaded the particle of positive charge Object and pollutant are swept along by flue gas into deviation electric field section 230, downward by the effect of electric field force in deviateing electric field section 230 Offset is then deposited in the lower end of shunting escape pipe 250, into lower flue gas shunting mouth 252.And shunt the upper end of escape pipe 250 The flue gas containing particulate matter and pollutant less than 20% can enter upper flue gas shunting mouth 251.

It, can be pre- by rubbish into the flue gas for being more than 80% containing particulate matter and pollutant load in lower flue gas shunting mouth 252 The MSW lump that waste conveyor 310 conveys in hot cell 300 is adsorbed and is exchanged heat, and the MSW lump of burning is not only treated It is heated, also so that particulate matter and pollutant in flue gas greatly reduce, the purified flue gas that exchanged heat enters dedusting gas transmission Pipe 520.Into the flue gas for being less than 20% containing particulate matter and pollutant of upper flue gas shunting mouth 251, flue gas heat exchange list is subsequently entered U-tube 410 in member 400, exchanges heat, the flue gas after heat exchange enters dust accumulation pipe with the heat exchanger tube 420 being arranged in U-tube 410 430, it is purified by the first deduster 510, the particulate matter in flue gas is removed by the first deduster 510, and purified flue gas is by removing Dirt appendix 520 is mixed with the flue gas from preheating escape pipe 340, and mixed flue gas enters the second deduster 530 and carries out two Secondary dedusting, the flue gas after final dusting are given off by chimney 600.

Certain embodiment of the utility model above described embodiment only expresses, the description thereof is more specific and detailed, But it should not be understood as limiting the scope of the patent of the utility model；It should be pointed out that for the common of this field For technical staff, without departing from the concept of the premise utility, various modifications and improvements can be made, these all belong to In the scope of protection of the utility model；Therefore, the protection domain of the utility model patent should be determined by the appended claims.

Claims (9)

1. a kind of device of flue gas shunting processing Jian Pai bioxin, it is characterised in that：Including flue gas shunting unit (200) and rubbish The end of preheating unit (300), the shunting escape pipe (250) of flue gas shunting unit (200) is provided with baffle (240), the baffle (240) outlet for shunting escape pipe (250) is divided into upper flue gas shunting mouth (251) and lower flue gas shunting mouth (252), under described Flue gas shunting mouth (252) is connected with garbage pre-heating unit (300)；The flue gas shunting unit (200) sets successively along airflow direction It is equipped with charged section (220) and deviates electric field section (230), deviate electric field section (230) and be used for in the flue gas after charged section (220) Charged particle thing apply electric field force and downwards flue gas shunting mouth (252) direction offset.

2. a kind of device of flue gas shunting processing Jian Pai bioxin according to claim 1, it is characterised in that：The baffle (240) angle is a, a=65~85 ° between the tube wall of upper flue gas shunting mouth (251).

3. a kind of device of flue gas shunting processing Jian Pai bioxin according to claim 1, it is characterised in that：The baffle (240) front end is equipped with deflector (241), and the deflector (241) is used to lead the flue gas that charged section (220) come out Stream makes it smoothly quickly enter lower flue gas shunting mouth (252).

4. a kind of device of flue gas shunting processing Jian Pai bioxin according to claim 1, it is characterised in that：The rubbish Preheating unit (300) includes waste conveyor (310), seal closure (320) and bellows (330)；The waste conveyor (310) it is used to carry MSW lump, waste conveyor (310) is provided at both ends with preheating feeding mouth (323) and preheating discharge port (321), waste conveyor (310) upper end is enclosed with seal closure (320), the preheated air inlet pipe of seal closure (320) upper end (322) it is connected to lower flue gas shunting mouth (252)；The flue gas of lower flue gas shunting mouth (252) is in the garbage pre-heating unit (300) and rubbish Heat exchange occurs for rubbish agglomerate, and MSW lump adsorbs the pollutant in flue gas during heat exchange.

5. a kind of device of flue gas shunting processing Jian Pai bioxin according to claim 1, it is characterised in that：The lower cigarette The lower end of qi leel head piece (252) is bend pipe (253), and the bend pipe (253) is for so that flue gas flows smoothly.

6. a kind of device of flue gas shunting processing Jian Pai bioxin according to claim 3, it is characterised in that：The water conservancy diversion Angle under the front end tangent line (c) and shunting escape pipe (250) of plate (241) between tube wall is d, d=45~75 °.

7. a kind of device of flue gas shunting processing Jian Pai bioxin according to claim 3 or 6, it is characterised in that：It is described Intersection point under the front end tangent line (c) and shunting escape pipe (250) of deflector (241) between tube wall is b, and b is located off electric field section (230) within.

8. a kind of device of flue gas shunting processing Jian Pai bioxin according to claim 4, it is characterised in that：The rubbish The rubbish conveying direction of conveying device (310) and the airflow direction of preheated air inlet pipe (322) are perpendicular.

9. a kind of device of flue gas shunting processing Jian Pai bioxin according to claim 4, it is characterised in that：The bellows (330) it is equipped with preheating escape pipe (340), the stage casing of the preheating escape pipe (340) is equipped with aspiration pump (341)；The bellows (330) cross-sectional area is gradually reduced from along airflow direction.