CN110220204A - A kind of system and method for waste incineration cooperatively processing sludge - Google Patents
A kind of system and method for waste incineration cooperatively processing sludge Download PDFInfo
- Publication number
- CN110220204A CN110220204A CN201910413487.9A CN201910413487A CN110220204A CN 110220204 A CN110220204 A CN 110220204A CN 201910413487 A CN201910413487 A CN 201910413487A CN 110220204 A CN110220204 A CN 110220204A
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- CN
- China
- Prior art keywords
- sludge
- output end
- drying machine
- tail gas
- waste
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- 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.)
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Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
-
- 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
- F23G7/001—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals for sludges or waste products from water treatment installations
Abstract
The invention discloses a kind of system and methods of waste incineration cooperatively processing sludge, the system and method for waste incineration cooperatively processing sludge provided by the invention, including sludge hopper, sludge drying machine and incinerator, the high-temperature tail gas of the output of the incinerator is imported into the sludge drying machine, convection drying is assisted by the high-temperature tail gas by the wet mud that the sludge hopper inputs the sludge drying machine, and the sludge transfer being dried in sludge drying machine composting into incinerator carries out power generation by waste combustion, by the way that incineration tail gas is used as the auxiliary direct desiccation of sludge, and the tail gas of directly desiccation generation is used as Secondary Air input incinerator again.The system and method for waste incineration cooperatively processing sludge provided by the invention has the effect of that waste incineration and sludge drying cost can be reduced.
Description
Technical field
The present invention relates to waste incineration and technical field of sludge treatment more particularly to a kind of waste incineration cooperatively processing sludges
System and method.
Background technique
Have land occupation less, secondary in view of with technologies of garbage disposal phase incineration treatment of garbage technologies such as sanitary landfills, compost
It is of reduced contamination, moreover it is possible to which that the advantages that with waste heat for supplying or generating electricity has been increasingly becoming China, burning disposal mainstream technology.Rubbish at present
Incineration plant water treatment system can generate a certain amount of sludge (less), and the sludge that garbage incinerating power plant water process generates generally is adopted
Sludge is taken directly to enter the mode that furnace enters feed hopper burning.For which, current dewatered moisture percentage in sewage sludge is still higher,
It is directly entered in feed hopper and has a significant impact to the stable operation of incinerator.
There can be a Secondary Air in waste incinerator air and flue system, for First air for combustion-supporting, Secondary Air is used to form disturbance
Slagging prevention.At present mainstream be arranged as First air by garbage pool air draught after air preheater heats enter burner hearth in play a combustion-supporting left side
The right side, Secondary Air are then blown into incinerator throat exit by air-breathing between incinerator (or inhaling from garbage pool), and forming disturbance prevents from tying
It is burnt.
With the control that current low nitrogen oxide discharges, in order to control the generation of nitrogen oxides, garbage incinerating power plant
Also begin to take related measure control Secondary Air oxygen concentration, for waste incinerator Secondary Air there is no combustion,
Burner hearth is blown into primarily to disturbing, but virtually increasing oxygen content, closes the nitrogen oxidation in the tail gas after burning
Object increases.
It is commonly indirectly drying method in sludge incineration processing, but (ton makes an investment in 800,000 to indirectly drying cost of investment height
More than), operation expense is high, land occupation is big, and system complex, stability is poor, low efficiency, and generating waste water needs to handle, sludge product
It need to handle, though directly desiccation is less with respect to indirectly drying problem, the exhaust gas volumn that direct desiccation generates is larger.
Summary of the invention
In view of the above-mentioned problems, now providing a kind of system and method for waste incineration cooperatively processing sludge, it is intended to realize rubbish
Rubbish incineration tail gas is used as the auxiliary direct desiccation of sludge, and the tail gas that direct desiccation is generated is as the Secondary Air of waste incineration, with
Reduce the oxynitrides in incineration tail gas.
Specific technical solution is as follows:
A kind of system of waste incineration cooperatively processing sludge, including sludge hopper, sludge drying machine and incinerator, it is described
The output end of sludge hopper is connect with the sludge input terminal of the sludge drying machine to input wet dirt into the sludge drying machine
The high-temperature tail gas output end of mud, the incinerator is inputted directly or by the high-temperature gas of waste-heat oven and the sludge drying machine
High-temperature tail gas is imported the dry wet mud of sludge drying machine auxiliary, the sludge of the sludge drying machine is defeated for end connection
Outlet is connected to so that dewatered sludge to be sent into the incinerator and carries out power generation by waste combustion with the feed hopper of the incinerator.
The system of above-mentioned waste incineration cooperatively processing sludge, also has the feature that, the incinerator further includes
Garbage pool, air preheater, burning burner hearth, secondary air fan and exhaust gas processing device, the garbage pool output end and the feed hopper are defeated
Enter end connection, the feed hopper output end is connect with the burning burner hearth input terminal, the air preheater output end and the burning
The connection of burner hearth First air input terminal, the tail gas output end for burning burner hearth are connect with the input terminal of the waste-heat oven, described remaining
The output end of hot stove connects with the high-temperature gas input terminal of the input terminal of the exhaust gas processing device and the sludge drying machine respectively
It connects, the tail gas output end of the sludge drying machine is connect with the input terminal of the secondary air fan, the output end of the secondary air fan
It is connect with the Secondary Air input terminal for burning burner hearth.
The beneficial effect of above scheme is: the tail gas that waste incineration is generated is used as sludge drying, and drying tail gas is used as again
Secondary Air imports waste incinerator so that garbage incinerating tail gas and sludge drying tail gas secondary use, reduce vent gas treatment at
This.
The system of above-mentioned waste incineration cooperatively processing sludge, also has the feature that, the burning burner hearth is set to institute
The side of feed hopper is stated, the secondary air fan is located at the lower section of the feed hopper, and the output end of the secondary air fan passes through pipeline
It is connect with the Secondary Air input terminal for burning burner hearth.
The beneficial effect of above scheme is: feed hopper lower space is larger, and close from Secondary Air entrance, so can incite somebody to action
Secondary air fan and sludge drying machine are arranged in feed hopper lower part, and the dewatered sludge after desiccation enters feed hopper, Secondary Air heating nearby
Pipeline will not arrange very long, real space layout is upper relatively reasonable.
The system of above-mentioned waste incineration cooperatively processing sludge, also has the feature that, the waste-heat oven output end is set
There is economizer, and the high-temperature tail gas for inputting the sludge drying machine is derived from the economizer exit.
The beneficial effect of above scheme is: tail gas is derived from economizer exit, and oxygen content is extremely low, can control nitrogen oxygen well
The production of compound reduces discharged nitrous oxides.
The system and method for above-mentioned waste incineration cooperatively processing sludge, also has follow steps:
S1. wet mud is put into the sludge hopper, wet mud falls into the sludge drying machine through the sludge hopper；
S2. it is direct to input the sludge drying machine auxiliary wet mud for the high-temperature tail gas of the waste heat furnace exhaust gas output end output
Desiccation；
S3. after sludge drying, dewatered sludge is imported after the feed hopper mixes with rubbish, is burnt into the burning burner hearth
Burn power generation；
S4. the tail gas of the tail gas output end output of the sludge drying machine enters burning burner hearth via the secondary air fan；
S5. high-temperature flue gas is imported the waste-heat oven by the burning burner hearth flue gas output end, and the waste heat outlet of still
Tail gas a part imports the sludge drying machine and is recycled, and another part discharges after carrying out fume treatment.
The beneficial effect of above scheme is: the high-temperature tail gas that waste incineration generates is imported into sludge drying machine, in tail gas
It dust particles mixing sludge and is dried, the tail gas after cooling imports incinerator by secondary air fan and is used as Secondary Air to prevent inside
Coking.
The beneficial effect of above scheme is:
In the system and method for waste incineration cooperatively processing sludge provided by the invention, the high-temperature tail gas that generates when will burn
As the auxiliary direct desiccation of sludge, waste heat efficiently uses and reduces the energy consumption of sludge drying, what when dirt direct desiccation generated
Tail gas is used as Secondary Air input incinerator again, can effectively reduce the oxynitrides content in incineration tail gas, reduces vent gas treatment
Qualified discharge difficulty.The system and method for waste incineration cooperatively processing sludge provided by the invention have can reduce waste incineration and
The effect of sludge drying cost.
Detailed description of the invention
Fig. 1 is the flow diagram of the system and method for waste incineration cooperatively processing sludge of the invention.
Specific embodiment
Below in conjunction with the embodiment of the present invention, technical scheme in the embodiment of the invention is clearly and completely described,
Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based in the present invention
Embodiment, those of ordinary skill in the art's every other embodiment obtained without creative labor,
It shall fall within the protection scope of the present invention.
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
The present invention is further explained in the light of specific embodiments, but not as the limitation of the invention.
Fig. 1 is the flow diagram of the system and method for waste incineration cooperatively processing sludge of the invention, as shown in Figure 1,
The system and method for waste incineration cooperatively processing sludge provided in this embodiment: including sludge hopper, sludge drying machine and burning
Device, the output end of the sludge hopper are connect with the sludge input terminal of the sludge drying machine into the sludge drying machine
Input wet mud, the high-temperature tail gas output end of the incinerator directly or by waste-heat oven and the sludge drying machine high temperature
Gas input connection is to import the dry wet mud of sludge drying machine auxiliary, the sludge drying machine for high-temperature tail gas
Sludge output end be connected to the feed hopper of the incinerator dewatered sludge to be sent into the incinerator and carries out burning hair
Electricity.
In embodiment provided by the invention, the incinerator further includes garbage pool, air preheater, burns burner hearth, Secondary Air
Machine and exhaust gas processing device, the garbage pool output end are connect with the feed hopper input terminal, the feed hopper output end and institute
It states and burns the connection of burner hearth input terminal, the air preheater output end is connect with the burning burner hearth First air input terminal, the burning
The tail gas output end of burner hearth is connect with the input terminal of the waste-heat oven, the output end of the waste-heat oven respectively with the vent gas treatment
The input terminal of device is connected with the high-temperature gas input terminal of the sludge drying machine, the tail gas output end of the sludge drying machine with
The input terminal of the secondary air fan connects, and the output end of the secondary air fan and the Secondary Air input terminal for burning burner hearth connect
It connects.
In embodiment provided by the invention, the side burned burner hearth and be set to the feed hopper, the Secondary Air seat in the plane
In the lower section of the feed hopper, the output end of the secondary air fan is connected by pipeline and the Secondary Air input terminal for burning burner hearth
It connects.
In embodiment provided by the invention, the waste-heat oven output end is equipped with economizer, and inputs the sludge drying machine
High-temperature tail gas be derived from the economizer exit.
In embodiment provided by the invention:
S1. wet mud is put into the sludge hopper, wet mud falls into the sludge drying machine through the sludge hopper；
S2. it is direct to input the sludge drying machine auxiliary wet mud for the high-temperature tail gas of the waste heat furnace exhaust gas output end output
Desiccation；
S3. after sludge drying, dewatered sludge is imported after the feed hopper mixes with rubbish, is burnt into the burning burner hearth
Burn power generation；
S4. the tail gas of the tail gas output end output of the sludge drying machine enters burning burner hearth via the secondary air fan；
S5. high-temperature flue gas is imported the waste-heat oven by the burning burner hearth flue gas output end, and the waste heat outlet of still
Tail gas a part imports the sludge drying machine and is recycled, and another part discharges after carrying out fume treatment.
Embodiment 1-5 Treatment of Sludge table
Sunykatuib analysis is just now come with the waste incinerator of a 500t and calculates relevant treatment situation.
500t waste incineration First air total amount is in 45000Nm3/ h or so is calculated, Secondary Air according to Secondary Air proportion 3:1
Amount should be in 15000Nm3/ h, by the sludge drying of 80% moisture content to 30%, then 15000Nm3The hot wind Conservative estimation of/h can be done
Change sludge in 1.3t/h, then one day can desiccation at least 30t, the garbage incinerating power plant of a scale 500t oneself generates daily
10t wet mud can externally cooperate with processing wet mud 20t, collect sludge treatment expense according to current market price, can also burn for rubbish
It burns power plant and increases a revenue source.
The above is only preferred embodiments of the present invention, are not intended to limit the implementation manners and the protection scope of the present invention, right
For those skilled in the art, it should can appreciate that all with equivalent replacement made by present specification and aobvious
And the obtained scheme of variation being clear to, it should all be included within the scope of the present invention.
Claims (5)
1. a kind of system of waste incineration cooperatively processing sludge, it is characterised in that: including sludge hopper, sludge drying machine and burning
Device, the output end of the sludge hopper are connect with the sludge input terminal of the sludge drying machine into the sludge drying machine
Input wet mud, the high-temperature tail gas output end of the incinerator directly or by waste-heat oven and the sludge drying machine high temperature
Gas input connection is to import the dry wet mud of sludge drying machine auxiliary, the sludge drying machine for high-temperature tail gas
Sludge output end be connected to the feed hopper of the incinerator dewatered sludge to be sent into the incinerator and carries out burning hair
Electricity.
2. a kind of system of waste incineration cooperatively processing sludge according to claim 1, it is characterised in that: the burning dress
To set further include garbage pool, air preheater, burns burner hearth, secondary air fan and exhaust gas processing device, the garbage pool output end with it is described
The connection of feed hopper input terminal, the feed hopper output end connect with the burning burner hearth input terminal, the air preheater output end and
The input terminal of the burning burner hearth First air input terminal connection, the tail gas output end for burning burner hearth and the waste-heat oven connects
It connects, the output end of the waste-heat oven high-temperature gas with the input terminal of the exhaust gas processing device and the sludge drying machine respectively
Input terminal connection, the tail gas output end of the sludge drying machine are connect with the input terminal of the secondary air fan, the secondary air fan
Output end with it is described burn burner hearth Secondary Air input terminal connect.
3. a kind of system of waste incineration cooperatively processing sludge according to claim 2, it is characterised in that: the incinerator
Thorax is set to the side of the feed hopper, and the secondary air fan is located at the lower section of the feed hopper, the output end of the secondary air fan
It is connect by pipeline with the Secondary Air input terminal for burning burner hearth.
4. a kind of system of waste incineration cooperatively processing sludge according to claim 2, it is characterised in that: the waste-heat oven
Output end is equipped with economizer, and the high-temperature tail gas for inputting the sludge drying machine is derived from the economizer exit.
5. a kind of method of waste incineration cooperatively processing sludge, it is characterised in that: utilize the described in any item rubbish of claim 2-4
The system that rubbish burns cooperatively processing sludge carries out waste incineration and Treatment of Sludge, includes the following steps:
S1. wet mud is put into the sludge hopper, wet mud falls into the sludge drying machine through the sludge hopper；
S2. it is directly dry to input the sludge drying machine auxiliary wet mud for the high-temperature tail gas of the waste heat furnace exhaust gas output end output
Change；
S3. after sludge drying, dewatered sludge is imported after the feed hopper mixes with rubbish, burns and sends out into the burning burner hearth
Electricity；
S4. the tail gas of the tail gas output end output of the sludge drying machine enters burning burner hearth via the secondary air fan；
S5. high-temperature flue gas is imported the waste-heat oven, and the tail gas of the waste heat outlet of still by the burning burner hearth flue gas output end
A part imports the sludge drying machine and is recycled, and another part discharges after carrying out fume treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910413487.9A CN110220204A (en) | 2019-05-17 | 2019-05-17 | A kind of system and method for waste incineration cooperatively processing sludge |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910413487.9A CN110220204A (en) | 2019-05-17 | 2019-05-17 | A kind of system and method for waste incineration cooperatively processing sludge |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110895111A (en) * | 2019-11-21 | 2020-03-20 | 北京中科领向环保研究院有限公司 | Drying system tail gas waste heat self-utilization system and method |
| CN112010528A (en) * | 2020-09-13 | 2020-12-01 | 上海康恒环境股份有限公司 | Waste incineration boiler coupling sludge drying disposal system |
| CN112815338A (en) * | 2021-01-12 | 2021-05-18 | 光大环境科技（中国）有限公司 | Sludge drying and waste incineration cooperative disposal device and method |
| CN113531560A (en) * | 2021-07-28 | 2021-10-22 | 上海环境工程设计研究院有限公司 | Garbage sludge synergistic drying incineration and NOx and odor synergistic treatment process |
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| CN102607043A (en) * | 2012-04-09 | 2012-07-25 | 浙江大学 | Method and device for synergetic stable incineration of sludge and solid waste and dioxin emission suppression |
| CN103244957A (en) * | 2012-02-28 | 2013-08-14 | 四川宇阳环境工程有限公司 | Integral treatment method for drying and incinerating sludge |
| CN103435244A (en) * | 2013-08-12 | 2013-12-11 | 浙江大学 | Parallel sludge low-temperature drying method utilizing waste heat of flue gas |
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2019
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| NL6504057A (en) * | 1964-03-31 | 1965-10-01 | ||
| CN101265008A (en) * | 2008-04-22 | 2008-09-17 | 东南大学 | Sludge drying burning combination treatment method |
| CN103244957A (en) * | 2012-02-28 | 2013-08-14 | 四川宇阳环境工程有限公司 | Integral treatment method for drying and incinerating sludge |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110895111A (en) * | 2019-11-21 | 2020-03-20 | 北京中科领向环保研究院有限公司 | Drying system tail gas waste heat self-utilization system and method |
| CN112010528A (en) * | 2020-09-13 | 2020-12-01 | 上海康恒环境股份有限公司 | Waste incineration boiler coupling sludge drying disposal system |
| CN112815338A (en) * | 2021-01-12 | 2021-05-18 | 光大环境科技（中国）有限公司 | Sludge drying and waste incineration cooperative disposal device and method |
| CN113531560A (en) * | 2021-07-28 | 2021-10-22 | 上海环境工程设计研究院有限公司 | Garbage sludge synergistic drying incineration and NOx and odor synergistic treatment process |
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