CN109386834A - Using the ceramisite sintered corollary equipment group of tail gas secondary combustion process - Google Patents
Using the ceramisite sintered corollary equipment group of tail gas secondary combustion process Download PDFInfo
- Publication number
- CN109386834A CN109386834A CN201811387767.9A CN201811387767A CN109386834A CN 109386834 A CN109386834 A CN 109386834A CN 201811387767 A CN201811387767 A CN 201811387767A CN 109386834 A CN109386834 A CN 109386834A
- Authority
- CN
- China
- Prior art keywords
- secondary combustion
- tail gas
- haydite
- sintered
- corollary equipment
- 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
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 45
- 239000000463 material Substances 0.000 claims abstract description 28
- 238000010992 reflux Methods 0.000 claims abstract description 25
- 230000032683 aging Effects 0.000 claims description 13
- 230000008901 benefit Effects 0.000 claims description 9
- 239000010802 sludge Substances 0.000 claims description 9
- 239000002994 raw material Substances 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 7
- 230000001105 regulatory effect Effects 0.000 claims description 7
- 238000005245 sintering Methods 0.000 abstract description 13
- 238000000034 method Methods 0.000 abstract description 9
- 230000001877 deodorizing effect Effects 0.000 abstract description 6
- 238000002360 preparation method Methods 0.000 abstract description 6
- 239000002957 persistent organic pollutant Substances 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 61
- 238000010586 diagram Methods 0.000 description 4
- 239000005416 organic matter Substances 0.000 description 4
- 239000000428 dust Substances 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 2
- 230000000694 effects 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
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 210000003298 dental enamel Anatomy 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- DNJIEGIFACGWOD-UHFFFAOYSA-N ethanethiol Chemical compound CCS DNJIEGIFACGWOD-UHFFFAOYSA-N 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- F27B17/00—Furnaces of a kind not covered by any preceding group
- F27B17/0016—Chamber type furnaces
- F27B17/0041—Chamber type furnaces specially adapted for burning bricks or pottery
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Processing Of Solid Wastes (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses a kind of ceramisite sintered corollary equipment groups using tail gas secondary combustion process, belong to ceramsite preparation process technical field, and single-revolution kiln is provided with a reflux branch for being sintered to haydite materials on the offgas outlet pipeline of the rotary kiln；One secondary combustion chamber is set at the material outlet of the rotary kiln, and sintered haydite passes first into the second-time burning room；Partial tail gas is delivered in the second-time burning room and carries out in second-time burning by the reflux branch, and precools to the haydite in the second-time burning room.Corollary equipment group is for the sintering process in ceramsite preparation process, it makes partial tail gas pass back into progress second-time burning in second-time burning room, the content of organic pollutant in tail gas can be effectively reduced, the burden of subsequent deodorizing device is alleviated, also can reduce the investment and goods and materials cost of relevant device.
Description
Technical field
The present invention relates to ceramsite preparation process technical fields, in particular to a kind of haydite using tail gas secondary combustion process
It is sintered corollary equipment group.
Background technique
Haydite is exactly as its name suggests the particle of ceramic.The external appearance characteristic of haydite is largely rounded or oval-shaped ball,
But it is not round or ellipse sphere there are also imitative rubble haydite, and is in irregular rubble shape, surface is one layer hard
Shell, this layer of shell are in ceramic or enamel, there is water proof to protect gas effect, and assign haydite higher intensity.Lightness is pottery
In many excellent performances of grain the most important and it heavy sandstone can be replaced to prepare light aggregate concrete, light mortar
The main reason for.
Haydite usually by haydite materials in rotary kiln through being sintered, when in haydite materials including debirs,
Imperfect combustion organic gas substance usually can be generated during the sintering process, and such as application No. is 201710287802.9 China
Patent of invention discloses a kind of haydite for preparing the method for haydite using contaminated soil and industrial sludge and being prepared, and is roasting
Imperfect combustion organic pollutant is inevitably generated under burning situation, although can be using deodorizing device come to therein
Organic pollutant is handled, but be bound to equipment investment to be increased and goods and materials (such as ozone) cost, and it is next now to need a kind of scheme
Solve or improve the appearance of such situation.
Summary of the invention
In view of the above technical problems, the ceramisite sintered corollary equipment group of the present invention using tail gas secondary combustion process
For the sintering process in ceramsite preparation process, part or all of tail gas is passed back into and carries out secondary combustion in second-time burning room
It burns, the content of organic pollutant in tail gas can be effectively reduced, the burden of subsequent deodorizing device is alleviated, also can reduce
The investment and goods and materials cost of relevant device.
To achieve the above object, a kind of using the ceramisite sintered with being arranged of tail gas secondary combustion process designed by the present invention
Standby group includes:
Single-revolution kiln is provided with a reflux branch for being sintered to haydite materials on the offgas outlet pipeline of the rotary kiln
Road；
One secondary combustion chamber is set at the material outlet of the rotary kiln, and sintered haydite passes first into the secondary combustion
It burns indoor；
Partial tail gas is delivered in the second-time burning room and carries out in second-time burning by the reflux branch, and to the secondary combustion
Indoor haydite is burnt to be precooled.
Haydite materials can generate the organic exhaust gas of a large amount of incomplete combustions when being sintered in rotary kiln, direct emission can pollute
Environment, the application lead back partial tail gas to being come into full contact in second-time burning room with being up to 800 ~ 1000 degrees Celsius of haydite surface
Organic exhaust gas is set to carry out second-time burning, so that not sufficiently combusted organic matter has an opportunity to continue to decompose at high temperature again, this
Scheme reduces the content of the organic matter of tail gas, significantly reduces the burden of subsequent deodorizing device, and lower treating capacity can be used
Deodorizing device, the problem of and then having saved equipment cost, while being able to solve haydite kiln exhaust gas stench, additionally it is possible to effective anti-
The only generation of dioxin.
The tail gas of reflux precools the material of output, and haydite can be prevented to be output and then enter cooling kiln to be quenched
Mode is cooled down, and is made haydite is easily cracked to wait flaws, is influenced the product quality of haydite；Meanwhile the tail gas that flows back is to haydite object
Material is purged, and can further remove the dust in it.
As a preferred embodiment of the above technical solution, the raw material for being mixed and being matched is stored in ageing bin area, the raw material
In include at least have one of municipal sludge and industrial sludge, in order to make be aged bin area generate negative pressure and reduce inorganization row
It puts, an exhaust gas is provided on the ageing bin area and mends wind branch, the exhaust gas is mended wind branch and will be waved in the ageing bin area
The exhaust gas of hair inputs the rotary kiln and is handled.It is aged in the air of bin area and contains a large amount of organic exhaust gas, this air is received
Collection enters rotary kiln and feeds as Secondary Air.
It is aged the presence in bin area due to municipal sludge and/or industrial sludge, can volatilize a large amount of organic exhaust gas, at this moment
Organic exhaust gas is carried out aspirating to be delivered in rotary kiln burning, the volatilization of organic matter in haydite materials can be promoted, reduced
Its content, and combustion-supporting effect can be played, so that the sintering finished condition of haydite is more intact, it is sintered more abundant；Also,
Rotary kiln needs to carry out during the sintering process benefit wind, and ceramsite sintering is carried out in the environment of an oxy combustion, can make original
Heavy metal in material is solidificated in haydite by way of becoming oxide after oxy combustion under free state, therefore is passed through
Gas sampling carries out the supply of Secondary Air, provides not only enough oxygen, while having dissolved the organic matter in exhaust gas, makes fuel
Full combustion and enough throughputs is provided, and exhaust gas mends wind branch while organic exhaust gas is delivered to rotary kiln also just
Benefit wind action is played, the sintering quality of rotary kiln is improved.
As a preferred embodiment of the above technical solution, the material outlet of the secondary combustion chamber is connected with cooling kiln.
As a preferred embodiment of the above technical solution, the reflux branch is provided with reflux exhaust fan and reflux tail gas is adjusted
Valve.
As a preferred embodiment of the above technical solution, the exhaust gas mends wind branch road and is provided with exhaust gas benefit wind blower and exhaust gas benefit wind
Regulating valve.
As a preferred embodiment of the above technical solution, the ageing bin area except feed(raw material)inlet, material outlet and with the exhaust gas
Mend imperforation again outside the communication port of wind branch.
As a preferred embodiment of the above technical solution, the reflux branch by whole tail gas be delivered in the second-time burning room into
In row second-time burning, and the haydite in the second-time burning room is precooled.
Compared with prior art, the present invention have the following advantages that and the utility model has the advantages that
Ceramisite sintered corollary equipment group of the present invention using tail gas secondary combustion process is in ceramsite preparation process
Sintering process makes partial tail gas pass back into progress second-time burning in second-time burning room, and can effectively reduce in tail gas has
The content of machine pollutant, alleviates the burden of subsequent deodorizing device, also can reduce the investment and goods and materials cost of relevant device；
After the volatilization exhaust gas for being aged bin area is introduced, it can more supply rotary kiln institute's required airflow and make the sintering finished of haydite
Condition is more intact, is sintered more abundant；
And the tail gas that flows back can also be pre-cooled material before entering the cooling kiln, promote the quality of haydite, further
Reduce the dust content in it.
Detailed description of the invention
Fig. 1 is ceramisite sintered corollary equipment group schematic diagram described in embodiment 1.
Fig. 2 is ceramisite sintered corollary equipment group schematic diagram as described in example 2.
Fig. 3 is ceramisite sintered corollary equipment group schematic diagram described in embodiment 3.
Fig. 4 is ceramisite sintered corollary equipment group schematic diagram as described in example 4.
Gas flow path in Fig. 1 ~ Fig. 4 is all made of dotted line and is indicated, and solid material flow path uses solid line in Fig. 3 and Fig. 4
It indicates.
In figure: ageing bin area b-1, exhaust gas mend wind branch b-1.1, exhaust gas mends wind blower b-1.2, exhaust gas mends wind regulating valve
B-1.3, rotary kiln c-1, reflux branch c-1.1, reflux exhaust fan c-1.2, reflux tail gas regulating valve c-1.3, cooling kiln c-
7, secondary combustion chamber c-8.
Specific embodiment
The present invention is described in further detail combined with specific embodiments below:
Embodiment is related to preparing sintering process and raw material storage process in the ceramsite preparation process during haydite, in each implementation
During example is described, debirs content imperfect combustion in tail gas can be effectively reduced, subsequent remove is alleviated
The burden of smelly equipment also can reduce the investment and goods and materials cost of relevant device；
Wherein, embodiment 2 is still to supply rotary kiln institute's required airflow and make the sintering finished condition of haydite more intact, sintering
More sufficiently；Embodiment 3 is pre-cooled material before entering the cooling kiln, promotes the quality of haydite, further decreases it
Interior dust content.
Embodiment 1: referring to Fig. 1, using the ceramisite sintered corollary equipment group of tail gas secondary combustion process, including a sintering
The rotary kiln c-1 of haydite, is provided with a reflux branch c-1.1 on offgas outlet pipeline, and reflux branch c-1.1 is by part 200
DEG C or so tail gas be transmitted back to secondary combustion chamber c-8 and carry out second-time burning, the reflux branch c-1.1, which is arranged, is provided with power
The reflux exhaust fan c-1.2 and reflux tail gas regulating valve c-1.3 for adjusting flow, the reflux exhaust fan c-1.2, that is, air inducing
Machine；
Treated that exhaust gas of the exhaust gas again with rotary kiln c-1 summarizes by secondary combustion chamber c-8.
Exhaust gas can do him as waste heat recycling after summarizing and use, such as the heating of drying kiln.
Embodiment 2: Fig. 2 is referred to, using the ceramisite sintered corollary equipment group of tail gas secondary combustion process, with embodiment 1
The difference is that: further include an ageing bin area b-1, includes the haydite materials of municipal sludge and industrial sludge through mixing
Wind branch b-1.1 is mended to an exhaust gas wherein, is provided on the ageing bin area b-1 with storage after proportion, is aged bin area b-1
Except feed(raw material)inlet, material outlet and with the exhaust gas mend wind branch b-1.1 communication port in addition to imperforation, i.e. material do not circulate again
When, ageing bin area b-1 is closed；
The exhaust gas mends wind branch b-1.1, and the exhaust gas input rotary kiln c-1 progress volatilized in the ageing bin area b-1 is secondary
Wind is mended, exhaust gas mends the exhaust gas that the exhaust gas benefit wind blower b-1.2 for being provided with power is arranged on wind branch b-1.1 and adjusts flow and mends wind
Regulating valve b-1.3.
Embodiment 3: Fig. 3 is referred to, using the ceramisite sintered corollary equipment group of tail gas secondary combustion process, with embodiment 2
The difference is that: it further include the cooling kiln c-7 being connected with after secondary combustion chamber c-8, branch c-1.1 is by partial tail gas for reflux
It is delivered in the secondary combustion chamber c-8 and the material in it is precooled.
Embodiment 4: Fig. 4 is referred to, using the ceramisite sintered corollary equipment group of tail gas secondary combustion process, with embodiment 3
The difference is that: whole tail gas are delivered in the secondary combustion chamber c-8 and carry out second-time burning by the reflux branch c-1.1
It is interior, and the haydite in the secondary combustion chamber c-8 is precooled.
Technical solution of the present invention and beneficial effect is described in detail in embodiment described above, it should be understood that
Above is only a specific embodiment of the present invention, it is not intended to restrict the invention, it is all to be done in spirit of the invention
Any modification, supplementary, and equivalent replacement etc., should all be included in the protection scope of the present invention.
Claims (7)
1. using the ceramisite sintered corollary equipment group of tail gas secondary combustion process, which is characterized in that include:
Single-revolution kiln (c-1) is arranged on the offgas outlet pipeline of the rotary kiln (c-1) for being sintered to haydite materials
Flow branch (c-1.1) once；
One secondary combustion chamber (c-8), is set at the material outlet of the rotary kiln (c-1), and sintered haydite passes first into
In the secondary combustion chamber (c-8)；
Partial tail gas is delivered in the secondary combustion chamber (c-8) and carries out in second-time burning by the reflux branch (c-1.1), and
Haydite in the secondary combustion chamber (c-8) is precooled.
2. the ceramisite sintered corollary equipment group according to claim 1 using tail gas secondary combustion process, it is characterised in that:
The raw material for being mixed and being matched is stored in ageing bin area (b-1), and including at least in the raw material has municipal sludge and industry
One of sludge is provided with an exhaust gas on the ageing bin area (b-1) and mends wind branch (b-1.1), and the exhaust gas mends wind branch
The exhaust gas to volatilize in ageing bin area (b-1) is inputted the rotary kiln (c-1) and handled by road (b-1.1).
3. the ceramisite sintered corollary equipment group according to claim 1 using tail gas secondary combustion process, it is characterised in that:
The material outlet of the secondary combustion chamber (c-8) is connected with cooling kiln (c-7).
4. the ceramisite sintered corollary equipment group according to claim 1 using tail gas secondary combustion process, it is characterised in that:
The reflux branch (c-1.1) is provided with reflux exhaust fan (c-1.2) and reflux tail gas regulating valve (c-1.3).
5. the ceramisite sintered corollary equipment group according to claim 2 using tail gas secondary combustion process, it is characterised in that:
The exhaust gas, which is mended, is provided with exhaust gas benefit wind blower (b-1.2) and exhaust gas benefit wind regulating valve (b-1.3) on wind branch (b-1.1).
6. the ceramisite sintered corollary equipment group according to claim 2 or 5 using tail gas secondary combustion process, feature exist
In: it is described ageing bin area (b-1) except feed(raw material)inlet, material outlet and with the exhaust gas mend wind branch (b-1.1) communication port
Outer imperforation again.
7. the ceramisite sintered corollary equipment group according to claim 1 or 2 using tail gas secondary combustion process, feature exist
In: whole tail gas are delivered in the secondary combustion chamber (c-8) and carry out in second-time burning by the reflux branch (c-1.1), and
Haydite in the secondary combustion chamber (c-8) is precooled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811387767.9A CN109386834B (en) | 2018-11-21 | 2018-11-21 | Ceramsite sintering matched equipment set adopting tail gas secondary combustion process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811387767.9A CN109386834B (en) | 2018-11-21 | 2018-11-21 | Ceramsite sintering matched equipment set adopting tail gas secondary combustion process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109386834A true CN109386834A (en) | 2019-02-26 |
| CN109386834B CN109386834B (en) | 2023-12-22 |
Family
ID=65428969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811387767.9A Active CN109386834B (en) | 2018-11-21 | 2018-11-21 | Ceramsite sintering matched equipment set adopting tail gas secondary combustion process |
Country Status (1)
| Country | Link |
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| CN (1) | CN109386834B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114370759A (en) * | 2022-01-14 | 2022-04-19 | 天津水泥工业设计研究院有限公司 | Low-energy-consumption system and process for preparing ceramsite by utilizing solid waste |
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| CN102206091A (en) * | 2010-03-10 | 2011-10-05 | 东南大学 | Method for making ceramsite by using sludge |
| CN103030376A (en) * | 2012-12-11 | 2013-04-10 | 甘永雄 | Treatment apparatus and process for in-kiln balling and firing ceramsite from industrial waste residue and sludge |
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| CN107843110A (en) * | 2017-11-29 | 2018-03-27 | 浙江大东吴集团建设新材料有限公司 | A kind of heated air circulation type Expanded Clay Rotary Kilns |
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| CN209672353U (en) * | 2018-11-21 | 2019-11-22 | 浙江大东吴集团建设有限公司 | Using the ceramisite sintered corollary equipment group of tail gas secondary combustion process |
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2018
- 2018-11-21 CN CN201811387767.9A patent/CN109386834B/en active Active
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| US4102700A (en) * | 1975-08-27 | 1978-07-25 | Perlmooser Zementwerke Aktiengesellschaft | Process for the production of a mixture to be utilized in the production of building materials and a device for carrying out the process |
| JP2003161411A (en) * | 2001-11-28 | 2003-06-06 | Babcock Hitachi Kk | Slag melting system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114370759A (en) * | 2022-01-14 | 2022-04-19 | 天津水泥工业设计研究院有限公司 | Low-energy-consumption system and process for preparing ceramsite by utilizing solid waste |
| CN114370759B (en) * | 2022-01-14 | 2023-08-25 | 天津水泥工业设计研究院有限公司 | Low-energy-consumption system and process for preparing ceramsite by utilizing solid waste |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109386834B (en) | 2023-12-22 |
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