CN109012017A - Exhaust treatment system and method - Google Patents
Exhaust treatment system and method Download PDFInfo
- Publication number
- CN109012017A CN109012017A CN201810837826.1A CN201810837826A CN109012017A CN 109012017 A CN109012017 A CN 109012017A CN 201810837826 A CN201810837826 A CN 201810837826A CN 109012017 A CN109012017 A CN 109012017A
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- CN
- China
- Prior art keywords
- exhaust
- kiln
- section
- heating
- brick
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title abstract description 15
- 239000007789 gas Substances 0.000 claims abstract description 103
- 239000011449 brick Substances 0.000 claims abstract description 82
- 238000002791 soaking Methods 0.000 claims abstract description 40
- 238000010438 heat treatment Methods 0.000 claims abstract description 38
- 239000011229 interlayer Substances 0.000 claims abstract description 25
- 238000001816 cooling Methods 0.000 claims abstract description 24
- 238000010304 firing Methods 0.000 claims abstract description 6
- 239000002912 waste gas Substances 0.000 claims description 7
- 238000001179 sorption measurement Methods 0.000 claims description 5
- 238000009826 distribution Methods 0.000 claims description 4
- 238000003672 processing method Methods 0.000 claims description 4
- 231100000701 toxic element Toxicity 0.000 claims description 3
- 238000002485 combustion reaction Methods 0.000 claims description 2
- 230000002035 prolonged effect Effects 0.000 claims 1
- 238000000746 purification Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 3
- 239000002341 toxic gas Substances 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000009841 combustion method Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- HGUFODBRKLSHSI-UHFFFAOYSA-N 2,3,7,8-tetrachloro-dibenzo-p-dioxin Chemical compound O1C2=CC(Cl)=C(Cl)C=C2OC2=C1C=C(Cl)C(Cl)=C2 HGUFODBRKLSHSI-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002574 poison Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000004056 waste incineration Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
Abstract
The invention discloses a kind of exhaust treatment system and methods, system includes tunnel brick kiln, tunnel brick kiln is successively arranged preheating section, burning zone, soaking zone and cooling section, in the head end of preheating section, brick body feed inlet is set, brick body discharge port is set in the tail end of cooling section, is additionally provided with air inlet in the tail end of cooling section, is provided with exhaust outlet at the top of the head end of preheating section, heating by the exhaust gases interlayer is additionally provided at the top of the kiln body of tunnel brick kiln, the top of soaking zone is arranged in the gas outlet of heating by the exhaust gases interlayer.Its effect is: by improving to kiln structure and intake method, the pre-heat treatment is carried out to exhaust gas using the heating by the exhaust gases interlayer at the top of kiln body, then enter in furnace chamber from soaking zone, exhaust gas successively discharges after soaking zone, burning zone and preheating section again, both dead time of the exhaust gas in kiln body had been extended, ensure that exhaust gas is sufficiently handled, in turn avoid the biggish exhaust gas of the temperature difference introduce suddenly to brick body firing impact, ensure that brick body quality.
Description
Technical field
Technical field of energy saving and environmental protection of the present invention, and in particular to a kind of exhaust treatment system and method.
Background technique
Environmental and human health impacts are often generated adverse effect, should taken before being discharged into atmosphere by the exhaust gas of industrial production discharge
Control techniques processing, is allowed to meet the requirement of waste gas emission standard.
Existing exhaust-gas treatment mostly uses greatly absorption method or combustion method, and absorption method needs dedicated equipment to be handled,
Process is relative complex, and insufficient phenomenon of burning usually occurs in combustion method, and safety is unable to get guarantee.Particular for rubbish
For exhaust-gas treatment after rubbish burning disposal/refuse pyrolysis gasification process, due to containing the toxic gases such as dioxin in exhaust gas, one
Denier processing is insufficient, will result in consequence very serious.
Such as a kind of method of consumer waste incineration processing disclosed in Chinese patent 200810064577.3, by tail gas
Depickling and dedusting are carried out, shaft kiln is then fed into and carries out second-time burning, so that the toxic gas in removing exhaust gas is removed, but existing for it
Defect is: the utilization rate of exhaust gas is low, and while burning insufficient is easy that there are poison gases to retain.
Chinese patent 201210075826.5 also discloses that a kind of utilization tunnel kiln brick sintering production line cooperative disposal is lived
The method and its processing system of rubbish, the system waste residue after domestic rubbish disposal can be comprehensively utilized and sufficiently
Remove the toxic gas in removing exhaust gas using tunnel oven hot environment, but exhaust gas after heat exchange directly from the high temperature of tunnel oven
Section enters, and is easy to influence the firing quality of brick body in kiln, kiln residence time is too short, and poison gas processing is still insufficient.
Summary of the invention
Based on drawbacks described above, present invention firstly provides a kind of exhaust treatment system, which is made full use of inside tunnel oven
Hot environment and brick body adsorption function in a high temperauture environment, exhaust gas is introduced into tunnel oven by soaking zone
Reason, neither influence brick body fires quality, and can remove the toxic gas in removing exhaust gas.
To achieve the goals above, specific technical solution of the present invention is as follows:
A kind of exhaust treatment system, key are: including tunnel brick kiln, the tunnel brick kiln be successively arranged preheating section,
Burning zone, soaking zone and cooling section are arranged brick body feed inlet in the head end of the preheating section, are arranged in the tail end of the cooling section
Brick body discharge port is additionally provided with air inlet in the tail end of the cooling section, exhaust is provided at the top of the head end of the preheating section
Mouthful, heating by the exhaust gases interlayer is additionally provided at the top of the kiln body of the tunnel brick kiln, the heating by the exhaust gases interlayer is provided with air inlet
And gas outlet, for the air inlet for connecting exhaust pipe, the top of the soaking zone is arranged in the gas outlet, and will be pre-
Exhaust gas after heat is sent into the tunnel brick kiln from the soaking zone to be handled.
Optionally, the heating by the exhaust gases interlayer is arranged in the surface of soaking zone, heating by the exhaust gases interlayer according to brickkiln inside
Temperature height is divided into heating by the exhaust gases section and shunts air outlet section, and heating by the exhaust gases section is located at the low-temperature region of soaking zone and air inlet is arranged
In the low-temperature end of heating by the exhaust gases section, shunts outlet section and be located at what the high-temperature area of soaking zone and being provided with was communicated with soaking zone furnace chamber
Gas distribution hole.
Optionally, the low-temperature end of the heating by the exhaust gases section extands rearward to the surface at cooling section first half position, exhaust gas from
Air inlet above cooling section enters in the heating by the exhaust gases interlayer.
Optionally, the air duct of S type is provided in the heating by the exhaust gases interlayer, the S type air duct from low-temperature region successively to
High-temperature area extends.
Optionally, the temperature of the preheating section is 10~500 DEG C, and the temperature of the burning zone is 500~1100 DEG C, described
The temperature of soaking zone is 1100~800 DEG C, and the temperature of the cooling section is 800~10 DEG C.
Optionally, the exhaust ports are also connected with gas cleaning plant.
Optionally, the head end of the preheating section is provided with brick body changeover portion, it is close that brick body changeover portion front end is provided with first
Closure door, the rear end of brick body changeover portion is provided with the second hermatic door.
It is designed based on above system, the present invention also proposes a kind of waste gas processing method, and key is: exhaust gas is sent into just
In the tunnel brick kiln for firing brick body, eliminated using the adsorption capacity of hot environment and brick body itself inside tunnel brick kiln useless
Toxic element in gas, wherein exhaust gas is sent into from the soaking zone of tunnel brick kiln, and fresh air is sent into from the cooling section of tunnel brick kiln,
Tail gas is discharged from the preheating section of tunnel brick kiln.
Optionally, heating by the exhaust gases interlayer is provided at the top of tunnel brick kiln soaking zone, exhaust gas is sent into institute after preheating
It states in soaking zone.
Optionally, the brick body interlaced stacking inside tunnel brick kiln is reserved with gas gap between brick body.
The beneficial effects of the present invention are:
By improving to tunnel brick kiln kiln structure and intake method, the heating by the exhaust gases interlayer pair at the top of kiln body is utilized
Exhaust gas carry out the pre-heat treatment, then enter in furnace chamber from soaking zone, exhaust gas successively after soaking zone, burning zone and preheating section again
It discharges, has both extended dead time of the exhaust gas in kiln body, it is ensured that exhaust gas is sufficiently handled, and it is biggish useless in turn avoid the temperature difference
Gas introduces suddenly impacts brick body firing, ensure that brick body quality.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described.In attached drawing, each element or part are not
Centainly drawn according to actual ratio.
Fig. 1 is system structure diagram of the invention;
Fig. 2 is the structural schematic diagram of the heating by the exhaust gases interlayer in the specific embodiment of the invention;
Fig. 3 is the stacking states figure of the kiln body inside brick body in the specific embodiment of the invention.
Specific embodiment
It is described in detail below in conjunction with embodiment of the attached drawing to technical solution of the present invention.Following embodiment is only used for
Clearly illustrate technical solution of the present invention, therefore be only used as example, and cannot be used as a limitation and limit protection model of the invention
It encloses.
As shown in Figure 1, a kind of exhaust treatment system, using tunnel brick kiln, according to the height of temperature, tunnel brick kiln is successively set
There are preheating section, burning zone, soaking zone and cooling section, wherein the temperature of preheating section is 10~500 DEG C, and the temperature of burning zone is 500
~1100 DEG C, the temperature of soaking zone is 1100~800 DEG C, and the temperature of cooling section is 800~10 DEG C.
Brick body feed inlet is set in the head end of preheating section, brick body discharge port is set in the tail end of cooling section, in cooling section
Tail end is additionally provided with air inlet, is provided with exhaust outlet at the top of the head end of preheating section, also sets up at the top of the kiln body of tunnel brick kiln
There is heating by the exhaust gases interlayer, in the specific implementation, air blower can be set in air inlet, and air-introduced machine, air blower can be set in exhaust outlet
Both it can ensure that and introduce enough fresh airs, guarantee that burning is sufficiently in kiln, and cooling section can be promoted to cool down rapidly, moreover it is possible to which cooperation is drawn
Blower prevents exhaust gas from flowing backwards.
As seen in Figure 2, heating by the exhaust gases interlayer is provided with air inlet and air outlet, and air inlet is for connecting exhaust gas row
Pipe is put, the top of soaking zone is arranged in gas outlet, and the exhaust gas after preheating is sent into the tunnel brick kiln from soaking zone and is handled.
In the present embodiment, heating by the exhaust gases interlayer be arranged in soaking zone surface and cooling section first half position just on
Side, heating by the exhaust gases interlayer are divided into heating by the exhaust gases section according to brickkiln internal temperature height and shunt air outlet section, and heating by the exhaust gases section is located at
The low-temperature end of heating by the exhaust gases section is arranged in the low-temperature region and air inlet of soaking zone, shunts the high-temperature region that outlet section is located at soaking zone
Domain is simultaneously provided with the gas distribution hole communicated with soaking zone furnace chamber.
Gas distribution hole can be avoided large quantity of exhaust gas and introducing concentrated to cause local temperature decline inside kiln body, influence brick body burning
Effect processed is provided with the air duct of S type in order to ensure exhaust gas is fully warmed-up in the heating by the exhaust gases interlayer, and the S type air duct is from low
Temperature area successively extends to high-temperature area.
In order to further decrease the discharge of pollutant, the exhaust ports are also connected with gas cleaning plant.
In the specific implementation, the head end of the preheating section is provided with brick body changeover portion, brick body changeover portion front end is provided with
First hermatic door, the rear end of brick body changeover portion are provided with the second hermatic door, design in this way, tail gas when can prevent brick body from feeding
Discharge, it is ensured that security of system.
Based on above system design it is appreciated that the present invention when carrying out exhaust-gas treatment, is to fire exhaust gas feeding
In the tunnel brick kiln of brick body, eliminated in exhaust gas using the adsorption capacity of hot environment and brick body itself inside tunnel brick kiln
Toxic element, wherein exhaust gas from the soaking zone of tunnel brick kiln be sent into, fresh air from the cooling section of tunnel brick kiln be sent into, tail gas from
The preheating section of tunnel brick kiln is discharged.Low temperature waste gas is introduced directly into furnace chamber and damages to brick body in order to prevent, protects in tunnel brick kiln
Heating by the exhaust gases interlayer is provided at the top of temperature section, exhaust gas is sent into the soaking zone after preheating.
As shown in figure 3, promoting its adsorption capacity, the brick body inside tunnel brick kiln to allow exhaust gas to come into full contact with brick body
Interlaced stacking is reserved with gas gap between brick body.
In conclusion exhaust treatment system proposed by the present invention and method, be both utilized the high-temp combustion ring of tunnel brick kiln
It realizes making full use of for waste gas burning heat, and can go in removing exhaust gas have poison gas using the absorption property of burning and brick body in border
Body, during system operation, exhaust gas just enters furnace chamber after preheating, and the temperature difference is smaller, will not impact to the firing of brick body,
And introduced from soaking zone, extend the dead time in tunnel brick kiln, it is ensured that exhaust gas is sufficiently handled.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations;To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement;And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme should all cover within the scope of the claims and the description of the invention.
Claims (10)
1. a kind of exhaust treatment system, it is characterised in that: including tunnel brick kiln, the tunnel brick kiln is successively arranged preheating section, combustion
Section, soaking zone and cooling section are burnt, brick body feed inlet is set in the head end of the preheating section, brick is set in the tail end of the cooling section
Body discharge port is additionally provided with air inlet in the tail end of the cooling section, is provided with exhaust outlet at the top of the head end of the preheating section,
Heating by the exhaust gases interlayer is additionally provided at the top of the kiln body of the tunnel brick kiln, the heating by the exhaust gases interlayer is provided with air inlet and goes out
The top of the soaking zone is arranged in for connecting exhaust pipe, the gas outlet in port, the air inlet, and will be after preheating
Exhaust gas be sent into the tunnel brick kiln and handle from the soaking zone.
2. exhaust treatment system according to claim 1, it is characterised in that: the heating by the exhaust gases interlayer is arranged in soaking zone
Surface, heating by the exhaust gases interlayer is divided into heating by the exhaust gases section according to brickkiln internal temperature height and shunts air outlet section, heating by the exhaust gases
The low-temperature end of heating by the exhaust gases section is arranged in positioned at the low-temperature region and air inlet of soaking zone for section, shunts outlet section and is located at soaking zone
High-temperature area is simultaneously provided with the gas distribution hole communicated with soaking zone furnace chamber.
3. exhaust treatment system according to claim 2, it is characterised in that: the low-temperature end of the heating by the exhaust gases section is prolonged backward
The surface at cooling section first half position is extended to, exhaust gas enters in the heating by the exhaust gases interlayer from the air inlet above cooling section.
4. exhaust treatment system according to claim 2 or 3, it is characterised in that: be arranged in the heating by the exhaust gases interlayer
There is the air duct of S type, which successively extends to high-temperature area from low-temperature region.
5. exhaust treatment system according to claim 1, it is characterised in that: the temperature of the preheating section is 10~500 DEG C,
The temperature of the burning zone is 500~1100 DEG C, and the temperature of the soaking zone is 1100~800 DEG C, the temperature of the cooling section
It is 800~10 DEG C.
6. exhaust treatment system according to claim 1, it is characterised in that: the exhaust ports are also connected with gas purification
Device.
7. exhaust treatment system according to claim 1, it is characterised in that: the head end of the preheating section is provided with brick body
Changeover portion, brick body changeover portion front end are provided with the first hermatic door, and the rear end of brick body changeover portion is provided with the second hermatic door.
8. a kind of waste gas processing method, it is characterised in that: exhaust gas is sent into the tunnel brick kiln for firing brick body, tunnel is utilized
The adsorption capacity of hot environment and brick body itself inside brickkiln eliminates the toxic element in exhaust gas, and wherein exhaust gas is from tunnel brick
The soaking zone of kiln is sent into, and fresh air is sent into from the cooling section of tunnel brick kiln, and tail gas is discharged from the preheating section of tunnel brick kiln.
9. waste gas processing method according to claim 8, it is characterised in that: be provided at the top of tunnel brick kiln soaking zone
Heating by the exhaust gases interlayer, exhaust gas are sent into the soaking zone after preheating.
10. waste gas processing method according to claim 8, it is characterised in that: the brick body inside tunnel brick kiln is interlaced
It stacks, is reserved with gas gap between brick body.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810837826.1A CN109012017B (en) | 2018-07-26 | 2018-07-26 | Exhaust gas treatment system and method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810837826.1A CN109012017B (en) | 2018-07-26 | 2018-07-26 | Exhaust gas treatment system and method |
Publications (2)
Publication Number | Publication Date |
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CN109012017A true CN109012017A (en) | 2018-12-18 |
CN109012017B CN109012017B (en) | 2024-03-08 |
Family
ID=64646864
Family Applications (1)
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CN201810837826.1A Active CN109012017B (en) | 2018-07-26 | 2018-07-26 | Exhaust gas treatment system and method |
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CN (1) | CN109012017B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111322863A (en) * | 2020-03-10 | 2020-06-23 | 湖南新天力科技有限公司 | Method and system for adjusting process atmosphere of roller kiln |
CN113375152A (en) * | 2021-05-27 | 2021-09-10 | 襄阳中和机电技术有限公司 | Combustion control system for heating hood of lithium salt acidification kiln |
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CN208771211U (en) * | 2018-07-26 | 2019-04-23 | 重庆秋松环保科技有限公司 | A kind of exhaust treatment system |
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2018
- 2018-07-26 CN CN201810837826.1A patent/CN109012017B/en active Active
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DE4136477A1 (en) * | 1991-11-06 | 1993-05-13 | Haessler Andreas Dipl Ing Fh | Combined tunnel drier and furnace for firing ceramic parts - has integral thermal gas purifier inside furnace |
DE4412170C1 (en) * | 1994-04-08 | 1995-08-10 | Krantz Tkt Gmbh | Harmful gas emissions oxidn. by cool extn. and hot return to tunnel furnace |
JP2004162963A (en) * | 2002-11-12 | 2004-06-10 | Sumitomo Electric Ind Ltd | Gas heating method and heating device |
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Publication number | Priority date | Publication date | Assignee | Title |
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CN111322863A (en) * | 2020-03-10 | 2020-06-23 | 湖南新天力科技有限公司 | Method and system for adjusting process atmosphere of roller kiln |
CN113375152A (en) * | 2021-05-27 | 2021-09-10 | 襄阳中和机电技术有限公司 | Combustion control system for heating hood of lithium salt acidification kiln |
Also Published As
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