CN209378793U - A kind of efficiently ultra-clean processing unit of incineration tail gas - Google Patents
A kind of efficiently ultra-clean processing unit of incineration tail gas Download PDFInfo
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- CN209378793U CN209378793U CN201821780498.8U CN201821780498U CN209378793U CN 209378793 U CN209378793 U CN 209378793U CN 201821780498 U CN201821780498 U CN 201821780498U CN 209378793 U CN209378793 U CN 209378793U
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- bellows
- tail gas
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- incineration tail
- processing unit
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Abstract
The utility model relates to house refuse, danger wastes incineration system, specifically a kind of efficiently ultra-clean processing unit of incineration tail gas.It includes rack, and bellows are arranged at the top of rack, and horizontal one end of bellows has air inlet, the other end to have air outlet.The bottom of the bellows is connected with the ash bucket of back taper, and the lower end of ash bucket is connected with screw conveyor, and there is ash hole in the lower part of screw conveyor, is provided with valve on ash hole.Its main feature is that being densely covered with catalysis filter bag in the bellows, which includes two layers of filter membrane, and outer layer filter membrane is PTFE peritonaeum, and internal layer filter membrane is the tunica fibrosa made of expanded PTFE, is filled with dioxin catalyst in the tunica fibrosa.After replacing existing common deduster to be mounted on the dry type reaction unit of incineration tail gas processing system in the device, remaining dioxin in processing system can be effectively removed, so that emission of smoke tallies national standard.
Description
Technical field
The utility model relates to house refuse, danger wastes incineration system, specifically a kind of incineration tail gas efficiently surpasses
Net processing unit.
Background technique
Consumer waste incineration, the currently used device of danger wastes incineration tail gas processing are as follows: dual firing chamber+waste heat boiler+
Chilling tower (being also half dry type reaction unit)+active carbon and raw injection (being also dry type reaction unit)+common deduster+heat exchanger
+ spray aeration tower+flue gas reheating+chimney.Flue gas enters dual firing chamber and further heats up burning after burning, and ignition temperature is greater than
1100 DEG C, gas residence time > 2s allows harmful substance completely burned.The flue gas that dual firing chamber comes out enters waste heat boiler recycling heat
Amount.Smoke temperature at outlet of waste heat boiler is generally 500 DEG C.500 DEG C of the flue gas come out from waste heat boiler is introduced into chilling tower and exists
It is cooled to 200 DEG C in 1S, while spraying into calcium hydroxide into chilling tower, removes sour gas, is sprayed in the flue gas come out to chilling tower
The harmful substances such as dioxin and the heavy metal in active powdered carbon absorption flue gas are penetrated, then allows flue gas to enter common deduster and removes powder
Dirt, then allow flue gas to enter fluidization wash mill after flue gas-flue gas heat-exchange unit (GGH) cooling and further purify, it is purified
Flue gas is warming up to after 130 DEG C by GGH and is discharged into chimney through air-introduced machine.The principle of the device is to allow dioxin in the high temperature ring of dual firing chamber
It is decomposed completely in border, and chilling cools down in chilling tower, avoids the regeneration of dioxin.However, in actual operation, if
Dual firing chamber cannot form turbulent flow completely, and incineration tail gas imperfect combustion just thoroughly can not allow dioxin to decompose；Simultaneously chilling also without
Method, which is really realized, is chilled to 200 DEG C from 500 DEG C for flue gas in 1S, therefore is difficult to avoid the regeneration of dioxin.Therefore, it is necessary to
The remaining dioxin of activated carbon adsorption is used again, to reduce influence of the flue gas of chimney discharge to environment.
But when exhaust gas volumn changes greatly, active carbon the amount of injection is difficult to control, and easily causes dioxin absorption not exclusively,
And common deduster does not have filter effect to dioxin, so that flue gas is extremely difficult to discharge standard, especially to reach country
Newest 0.1 ng(I-TEQ of discharge standard)/m3It is even more extremely difficult.
Utility model content
Problem to be solved in the utility model is to provide a kind of efficiently ultra-clean processing unit of incineration tail gas, which is replaced
Existing common deduster is mounted on after the dry type reaction unit of incineration tail gas processing system, can be effectively removed in processing system
Remaining dioxin, so that emission of smoke tallies national standard.
To solve the above problems, taking following technical scheme:
The efficiently ultra-clean processing unit of the incineration tail gas of the utility model includes rack, and bellows are arranged at the top of rack, bellows
Horizontal one end has air inlet, the other end to have air outlet.The bottom of the bellows is connected with the ash bucket of back taper, under ash bucket
End is connected with screw conveyor, and there is ash hole in the lower part of screw conveyor, is provided with valve on ash hole.Its main feature is that the wind
Catalysis filter bag is densely covered in case, which includes two layers of filter membrane, and outer layer filter membrane is PTFE peritonaeum, and internal layer filter membrane is by swollen
Tunica fibrosa made of body polytetrafluoroethylene (PTFE) is filled with dioxin catalyst in the tunica fibrosa.
Wherein, there is horizontally disposed support plate above and below in the bellows, through-hole, two branch are densely covered in support plate
Columnar skeleton is provided between the correspondence through-hole of fagging, the catalysis filter bag is coated on corresponding skeleton periphery.
The upper end of the skeleton both passes through the through-hole of corresponding support plate, and there is card in skeleton one end above the support plate
Plate.Between catalysis filter bag and the skeleton, skeleton between support plate by snap-gauge in being fixedly connected.
Above scheme is taken, is had the advantage that
It, should since the efficiently ultra-clean processing unit of the incineration tail gas of the utility model is densely covered with catalysis filter bag in the bellows
Catalysis filter bag includes two layers of filter membrane, and outer layer filter membrane is PTFE peritonaeum, and internal layer filter membrane is the fibre made of expanded PTFE
Film is tieed up, is filled with dioxin catalyst in the tunica fibrosa.Therefore, the dry type for which being mounted on incineration tail gas processing system is anti-
After answering device, the PTFE peritonaeum of catalysis filter bag outer layer can capture the fine solid particle in flue gas, have and existing commonly remove
The dust removing effects of dirt device.Meanwhile the dioxin catalyst being catalyzed in the tunica fibrosa of filter bag internal layer can promote leading portion processing residual
Dioxin and flue gas in oxygen chemically react, resolve into CO2、H2O and HCL, so that entire incineration tail gas processing system
Dioxin removal rate reach 99.99% or more, thus really realize flue gas qualified discharge.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the efficiently ultra-clean processing unit of incineration tail gas of the utility model；
Fig. 2 is the enlarged diagram of encircled portion in Fig. 1；
Fig. 3 is the enlarged diagram of encircled portion in Fig. 2.
Specific embodiment
The utility model is described in further details below in conjunction with attached drawing.
As shown in Figure 1, Figure 2 and Figure 3, the efficiently ultra-clean processing unit of the incineration tail gas of the utility model includes rack 1, rack
Bellows 3 are arranged at 1 top, and horizontal one end of bellows 3 has air inlet 2, the other end to have air outlet 4.The bottom of the bellows 3 is connected with
The ash bucket 6 of back taper, the lower end of ash bucket 6 are connected with screw conveyor 7, and ash hole 8 is arranged at the lower part of screw conveyor 7, out
Valve is provided on grey mouth 8.Catalysis filter bag 5 is densely covered in the bellows 3, which includes two layers of filter membrane, outer layer filter
Film is PTFE peritonaeum 52, and internal layer filter membrane is tunica fibrosa 51 made of expanded PTFE, is filled with two in the tunica fibrosa 51
Dislike English catalyst 55.
Wherein, there is horizontally disposed support plate 31 above and below in the bellows 3, be densely covered with through-hole in support plate 31, two
Columnar skeleton 53 is provided between the correspondence through-hole of a support plate 31, the catalysis filter bag 5 is coated on corresponding skeleton
53 peripheries.
The upper end of the skeleton 53 both passes through the through-hole of corresponding support plate 31, and 53 one end of skeleton of 31 top of support plate
There is snap-gauge 54.The catalysis filter bag 5 between skeleton 53, skeleton 53 between support plate 31 by snap-gauge 54 in being fixedly connected.
In use, the efficiently ultra-clean processing unit of the incineration tail gas of the utility model is mounted on incineration tail gas processing system
After dry type reaction unit.In the operation of incineration tail gas processing system, the dioxin contained in flue gas is first in the height of dual firing chamber
Major part has been decomposed under warm environment, has then been tightly held by activated carbon a part in dry type reaction unit.Finally, residual a small amount of two
The flue gas for disliking English enters the efficiently ultra-clean processing unit of incineration tail gas of the utility model.Flue gas is in the process by catalysis filter bag 5
In, the PTFE peritonaeum 52 of outer layer can capture the fine solid particle in flue gas, have the dust removing effects of existing common deduster；Together
When, the dioxin catalyst 55 in the tunica fibrosa 51 of internal layer can promote remaining a small amount of dioxin and oxygen in flue gas
Reaction is learned, CO is resolved into2、H2O and HCL so that the dioxin removal rate of entire incineration tail gas processing system reach 99.99% with
On, the content of dioxin is lower than 0.1 ng(I-TEQ in the flue gas of discharge)/m3, to be truly realized the qualified discharge of flue gas.
Claims (3)
1. a kind of efficiently ultra-clean processing unit of incineration tail gas, including rack (1), the top of rack (1) have bellows (3), bellows (3)
Horizontal one end there is air inlet (2), the other end to have air outlet (4)；The bottom of the bellows (3) is connected with the ash bucket of back taper
(6), the lower end of ash bucket (6) is connected with screw conveyor (7), and ash hole (8), ash hole are arranged at the lower part of screw conveyor (7)
(8) valve is provided on；It is characterized in that being densely covered with catalysis filter bag (5) in the bellows (3), which includes
Two layers of filter membrane, outer layer filter membrane are PTFE peritonaeum (52), and internal layer filter membrane is the tunica fibrosa made of expanded PTFE (51), should
Dioxin catalyst (55) are filled in tunica fibrosa (51).
2. the efficiently ultra-clean processing unit of incineration tail gas as described in claim 1, it is characterised in that upper and lower in the bellows (3)
Have horizontally disposed support plate (31), be densely covered with through-hole in support plate (31), between the correspondence through-hole of two support plates (31)
It is provided with columnar skeleton (53), the catalysis filter bag (5) is coated on corresponding skeleton (53) periphery.
3. the efficiently ultra-clean processing unit of incineration tail gas as claimed in claim 2, it is characterised in that the upper end of the skeleton (53)
The through-hole of corresponding support plate (31) is both passed through, and skeleton (53) one end above the support plate (31) there are snap-gauge (54)；It is described
Catalysis filter bag (5) between skeleton (53), skeleton (53) between support plate (31) pass through snap-gauge (54) be in be fixedly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821780498.8U CN209378793U (en) | 2018-11-02 | 2018-11-02 | A kind of efficiently ultra-clean processing unit of incineration tail gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821780498.8U CN209378793U (en) | 2018-11-02 | 2018-11-02 | A kind of efficiently ultra-clean processing unit of incineration tail gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209378793U true CN209378793U (en) | 2019-09-13 |
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ID=67867413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821780498.8U Active CN209378793U (en) | 2018-11-02 | 2018-11-02 | A kind of efficiently ultra-clean processing unit of incineration tail gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209378793U (en) |
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2018
- 2018-11-02 CN CN201821780498.8U patent/CN209378793U/en active Active
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