CN209271188U - A kind of high fluorine-containing, phosphorus castoff burning and tail gas SCR denitration device - Google Patents
A kind of high fluorine-containing, phosphorus castoff burning and tail gas SCR denitration device Download PDFInfo
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- CN209271188U CN209271188U CN201821655261.7U CN201821655261U CN209271188U CN 209271188 U CN209271188 U CN 209271188U CN 201821655261 U CN201821655261 U CN 201821655261U CN 209271188 U CN209271188 U CN 209271188U
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Abstract
The utility model discloses a kind of high fluorine-containing, phosphorus castoff burning and tail gas SCR denitration device, it mainly include feeder, burn mechanism, denitrating flue gas mechanism and exhaust emissions mechanism, wherein, burning mechanism includes sequentially connected rotary kiln, vertical incinerator and waste heat boiler, denitrating flue gas mechanism includes sequentially connected ceramic multicyclone dust collector, water film dedusting removes acid tower, first grade scrubber, secondary scrubber and mist water separator, exhaust emissions mechanism includes exhaust blower and chimney, first grade scrubber and secondary scrubber are connected in series, the spraying mechanism and SCR catalyst of top setting lye.High fluorine-containing, phosphorous waste high temperature efficiently can be burned dedusting, washing, the absorption that the flue gas generated passes through device by the utility model, make the not external direct emission of harmful substance generated, lye in device is to be recycled, thermal energy is recycled by waste heat boiler simultaneously, the use for saving the energy, reduces operating cost.
Description
Technical field
The utility model relates to Waste Disposal Technology field more particularly to a kind of high fluorine-containing, phosphorus castoff burnings and tail
Gas SCR denitration device.
Background technique
Incineration method is under high temperature with the most effective means and high temperature depth oxygen of air deep oxidation processing organic waste
Change method processing organic waste most easily realizes industrialized method.For example, usual COD > 100g/L, calorific value > 10500kJ/kg
Fluorine-containing phosphorous high-concentration waste water is consolidated with useless, is handled with incineration method more reasonable than other methods, more economical.In general, organic matter
Organic bazardous waste of the content greater than 10% mostly makees final process using burning.Harmful organic substance can be existed using incineration method
Exhaustive oxidation decomposes under high temperature, generates carbon dioxide and water, and the removal rate of organic matter is high, and short processing time, with low investment, accounts for
Ground is small.
In order to reduce the burning pollutant of generation to the greatest extent, the excess air factor of incinerator generally all obtain it is relatively large,
In addition volatile matter content is also relatively high in waste liquid, thus forms more heating power N, and incinerator is made to discharge NOXThan it
His boiler wants nice and high more, therefore people is caused to obtain pay attention to day by day.
The nitrogen oxides that incinerator burning generates is mainly NO (account for about nitrogen oxides total amount 95%) and NO2(account for about nitrogen
The 5% of oxide aggregate), nitrogen oxide includes NO, NO2、N2O、N2O2、N2O4Deng, and the nitrogen oxidation generated in combustion apparatus
Object is mainly NO and NO2, generally it is commonly referred to as NOX.NO in atmosphereXAbout 90% comes from combustion product.
NO toxicity is very big, it is easy to and the hemochrome in animal blood combines, and causes blood anoxic and causes nervous centralis
Paralysis, therefore jeopardize health and lives.NO2It is to be aoxidized by NO and generated, it has strong impulse effect to respiratory apparatus mucous membrane,
Especially to lung, toxicity is compared with SO2It is all strong with NO.It irradiates and is contacted with the hydrocarbon in smoke evacuation, NO through ultraviolet light2It can give birth to
At a kind of toxic smog of sky-blue --- photochemical fog.Photochemical fog is to the eye of people, nose, the heart, lung, liver hematopoietic tissue etc.
All have strong impulse and detrimental effect.The harm of nitrogen oxides in recent years oneself have been to be concerned by more and more people.
Therefore, those skilled in the art, which is dedicated to developing, a kind of efficiently burns fluorine-containing, phosphorous waste and to tail gas
The device of denitration.
Utility model content
In view of the above drawbacks of the prior art, technical problem to be solved in the utility model be efficiently burn it is fluorine-containing,
Phosphorous waste and need to subsequent tail gas carry out denitration.
To achieve the above object, the utility model provides a kind of high fluorine-containing, phosphorus castoff burning and tail gas SCR denitration dress
It sets, mainly includes feeder, burns mechanism, denitrating flue gas mechanism and exhaust emissions mechanism, wherein burning mechanism includes successively
Rotary kiln, vertical incinerator and the waste heat boiler of connection, denitrating flue gas mechanism include sequentially connected ceramic multicyclone dust collector, water
Film dedusting removes acid tower, first grade scrubber, secondary scrubber and mist water separator, and exhaust emissions mechanism includes exhaust blower and chimney,
The combustion chamber of rotary kiln is equipped with solid waste feed inlet and oxygen supplement mouth and is connected with primary combustion machine, vertical incinerator it is upper
The combustion chamber in portion is equipped with liquid debris charging spray port, air supply opening and oxygen supplement mouth, and with second-time burning machine, kiln tail phase
Even, solid waste and liquid debris are delivered to the combustion chamber of rotary kiln and vertical incinerator by feeder respectively, and
Diesel oil is delivered to primary combustion machine and second-time burning machine respectively, the front end of primary combustion machine and second-time burning machine is equipped with for storing up
The diesel oil slot of diesel oil is deposited, the outlet of vertical incinerator is connected with the entrance of waste heat boiler through flue, the outlet of waste heat boiler and pottery
The entrance of porcelain multi-tube dust cleaner is connected by flue, and ceramic multicyclone dust collector and water film dedusting remove and connected between acid tower by Venturi tube
It connects, so that flue gas high speed tangent line rotates into water film dedusting except acid tower, first grade scrubber and secondary scrubber series connection, moisture film
Dedusting is recycled except acid tower, first grade scrubber, secondary scrubber and mist water separator provide lye by alkali liquor circulating system, and level-one is washed
Wash the spraying mechanism and SCR catalyst of the top setting lye of tower and secondary scrubber, outlet above mist water separator and
Exhaust blower is connected by flue, and exhaust blower outlet is connected with chimney.
Further, when solid waste feeding, the expects pipe that bucket elevator reaches eminence is first passed through, feed funnel is fallen into
It is delivered to rotary kiln downwards through chute again afterwards.
Further, screw ash-discharging device is equipped with below rotary kiln.
Further, rotary kiln is oblique setting, and lower angle of internal friction is set as 1.5 °.
Further, waste heat boiler is also connected with boiler feedwater pipeline, vapour-discharge tube road and emptying pipeline.
Further, the spraying mechanism of the top of first grade scrubber and secondary scrubber is equipped with multilayer by different height, and
Each level is equipped with multiple spraying mechanisms.
Further, the lye of spray contains NH3；In SCR catalyst, TiO2For carrier, V2O5For active constituent.
Further, mist water separator is selected from cyclone separator or cyclone hydraulic separators.
The utility model technical effect: the device of the utility model can efficiently pass through high fluorine-containing, phosphorous waste
High temperature incineration, the flue gas for burning generation pass through dedusting, washing, the absorption of device, arrange the harmful substance generated directly externally
It puts, the lye in device is to be recycled, while recycling thermal energy by waste heat boiler, saves the use of the energy, reduces fortune
Row cost.
Make furtherly below with reference to technical effect of the attached drawing to the design of the utility model, specific structure and generation
It is bright, to be fully understood from the purpose of this utility model, feature and effect.
Detailed description of the invention
Fig. 1 is high fluorine-containing, the phosphorus castoff burning of the utility model and the schematic diagram of tail gas SCR denitration device.
In figure, 1 rotary kiln, 2 vertical incinerators, 3 waste heat boilers, 4 ceramic multicyclone dust collectors, 5 water film dedustings remove acid tower, 6
First grade scrubber, 7 secondary scrubbers, 8 mist water separators, 9 exhaust blowers, 10 chimneys, 11 primary combustion machines, 12 second-time burning machines,
13 liquid debris feed spray port, and 14 diesel oil slots, 15 solid waste conveyance conduits, 16 bucket elevators, 17 feed funnels, 18 slip
Slot, 19 diesel feeding pipe roads, 20 liquid give up conveyance conduit, 21 oxygenating blowers, 22 air compressor machines, 23 Venturi tubes, 24 lye cyclic systems
System, 25 spraying mechanisms, 26 screw ash-discharging devices, 27 boiler feedwater pipelines, 28 vapour-discharge tube roads, 29 emptying pipelines.
Specific embodiment
As shown in Figure 1 for height provided by the utility model is fluorine-containing, phosphorus castoff burning and tail gas SCR denitration device, mainly
Including feeder, burn mechanism, denitrating flue gas mechanism and exhaust emissions mechanism, wherein it includes sequentially connected for burning mechanism
Rotary kiln 1, vertical incinerator 2 and waste heat boiler 3, denitrating flue gas mechanism include sequentially connected ceramic multicyclone dust collector 4, moisture film
Dedusting removes acid tower 5, first grade scrubber 6, secondary scrubber 7 and mist water separator 8, and exhaust emissions mechanism includes exhaust blower 9 and cigarette
Chimney 10.
The combustion chamber of rotary kiln 1 is equipped with solid waste feed inlet and oxygen supplement mouth and is connected with primary combustion machine 11, stands
The combustion chamber on the top of formula incinerator 2 is equipped with liquid debris charging spray port 13, air supply opening and oxygen supplement mouth, and and second-time burning
Machine 12,1 furnace tail of rotary kiln are connected, and solid waste and liquid debris are delivered to rotary kiln 1 and vertical respectively by feeder
The combustion chamber of incinerator 2, and diesel oil is delivered to primary combustion machine 11 and second-time burning machine 12 respectively, 11 He of primary combustion machine
The front end of second-time burning machine 12 is equipped with the diesel oil slot 14 for storing diesel oil, and solid waste is through 15 feeding of solid waste conveyance conduit
When, the expects pipe that bucket elevator 16 reaches eminence is first passed through, falls into after feed funnel 17 and is delivered to revolution downwards through chute 18 again
Kiln 1, and diesel oil through diesel feeding pipe road 19 convey when, first stored in diesel oil slot 14, be then respectively delivered to primary combustion
Machine 11 and second-time burning machine 12, liquid debris then pass through the top that the useless conveyance conduit 20 of liquid is passed directly to vertical incinerator 2.
Oxygen is each led into rotary kiln 1 and vertical incinerator 2 by oxygenating blower 21, air is passed through vertical burn by air compressor machine 22
Burn the top of furnace 2.
The outlet of vertical incinerator 2 is connected with the entrance of waste heat boiler 3 through flue, and the outlet of waste heat boiler 3 and ceramics are more
The entrance of pipe deduster 4 is connected by flue, and ceramic multicyclone dust collector 4 and water film dedusting remove and connected between acid tower 5 by Venturi tube 23
It connects, makes flue gas high speed tangent line rotate into water film dedusting except acid tower 5 by Venturi tube 23.First grade scrubber 6 is washed with second level
Wash the series connection of tower 7, flue gas is discharged after first grade scrubber 6 from lower part from top to bottom, then in secondary scrubber 7 from lower and
On pass through, from 7 top of secondary scrubber be passed through mist water separator 8 after washed.Water film dedusting except acid tower 5, first grade scrubber 6,
Secondary scrubber 7 and mist water separator 8 provide lye by alkali liquor circulating system 24 and recycle, and carry out lye supply by circulating pump
The spraying mechanism 25 and SCR catalyst of the top setting lye of circulation, first grade scrubber 6 and secondary scrubber 7, level-one washing
The spraying mechanism 25 of the top of tower 6 and secondary scrubber 7 is equipped with multilayer by different height, and each level is equipped with multiple spray throwers
Structure 25.The lye of spray contains NH3；In SCR catalyst, TiO2For carrier, V2O5For active constituent.Mist water separator 8 is selected from rotation
The outlet of wind separator or cyclone hydraulic separators, 8 top of mist water separator is connected with exhaust blower 9 by flue, the outlet of exhaust blower 9 and cigarette
Chimney 10 is connected.
It is equipped with screw ash-discharging device 26 below rotary kiln 1, processing is collected to lime-ash.Preferably, rotary kiln 1 is oblique
Setting, and lower angle of internal friction is set as 1.5 °, spreads solid waste gradually sufficiently to burn out with the rotation of rotary kiln 1.
Waste heat boiler 3 is also connected with boiler feedwater pipeline 27, vapour-discharge tube road 28 and emptying pipeline 29, the steam in waste heat boiler 3
It is recycled by vapour-discharge tube road 28, uses purpose for other.
The processing of high fluorine-containing, phosphorus castoff burning and tail gas SCR denitration is carried out according to above-mentioned apparatus, the specific steps are as follows:
(1) solid waste is sent into rotary kiln, is passed through oxygen, diesel oil is sprayed into 1200-1300 by primary combustion machine
It is burned at DEG C, after burning, rotary kiln lower part goes out lime-ash, and flue gas enters vertical incinerator；
(2) liquid debris is delivered to the spray port on vertical incinerator top, the combustion chamber on top is passed through step (1) and burns
Flue gas after burning, while it being passed through air and oxygenating, second-time burning machine sprays into diesel oil and burns at 1200-1300 DEG C, burns heel row
Gas is passed through waste heat boiler, and flue-gas temperature is down to 400-500 DEG C, and the steam in recovery waste heat boiler；
(3) flue gas after cooling enter ceramic multicyclone dust collector be dusted processing after enter Venturi tube after be discharged, arrange
Flue gas high speed tangent line out rotates into water film dedusting except acid tower carries out cyclonic separation, absorbs the dust in flue gas by moisture film
The water phases such as grain and HF；
(4) after water film dedusting is except acid tower processing, flue gas is successively passed through concatenated first grade scrubber and secondary scrubber, spray
It drenches lye and denitration process is carried out by the effect of SCR catalyst；
(5) flue gas after denitration process is passed through mist water separator, after the particle, water droplet in removing flue gas, passes through air draft
Machine discharge.
Further, solid waste and the feed weight of liquid debris ratio are 4:1.In a reality of the utility model
It applies in example, the feed rate of solid waste is 800kg/h, and the feed rate of liquid debris is 200kg/h.
By the utility model, the cigarette of generation can be burned efficiently by high fluorine-containing, phosphorous waste through high temperature incineration
Gas passes through dedusting, washing, the absorption of device, makes the not external direct emission of harmful substance generated, and the lye in device is circulation
It uses, while thermal energy is recycled by waste heat boiler, save the use of the energy, reduce operating cost.
The preferred embodiments of the present invention have been described in detail above.It should be appreciated that the ordinary skill people of this field
Member according to the present utility model can conceive without creative work makes many modifications and variations.Therefore, all this technology necks
Technical staff passes through logic analysis, reasoning or limited reality according to the design of the utility model on the basis of existing technology in domain
Available technical solution is tested, it all should be within the scope of protection determined by the claims.
Claims (7)
1. a kind of high fluorine-containing, phosphorus castoff burning and tail gas SCR denitration device, which is characterized in that include mainly feeder, burn
Burn mechanism, denitrating flue gas mechanism and exhaust emissions mechanism, wherein burning mechanism includes sequentially connected rotary kiln, vertical burning
Furnace and waste heat boiler, denitrating flue gas mechanism include sequentially connected ceramic multicyclone dust collector, water film dedusting except acid tower, level-one are washed
Tower, secondary scrubber and mist water separator, exhaust emissions mechanism include exhaust blower and chimney, and the combustion chamber of rotary kiln is equipped with solid
Waste feed inlet and oxygen supplement mouth are simultaneously connected with primary combustion machine, and the combustion chamber on the top of vertical incinerator is equipped with liquid waste
Object feeds spray port, air supply opening and oxygen supplement mouth, and is connected with second-time burning machine, kiln tail, and feeder is respectively by solid
Waste and liquid debris are delivered to the combustion chamber of rotary kiln and vertical incinerator, and diesel oil is delivered to primary combustion respectively
The front end of burning machine and second-time burning machine, primary combustion machine and second-time burning machine is equipped with the diesel oil slot for storing diesel oil, vertical to burn
The outlet for burning furnace is connected with the entrance of waste heat boiler through flue, and the outlet of waste heat boiler and the entrance of ceramic multicyclone dust collector are by cigarette
Road connection, ceramic multicyclone dust collector and water film dedusting between acid tower by Venturi tube except being connected, so that flue gas high speed tangent line rotates
Remove acid tower into water film dedusting, first grade scrubber and secondary scrubber are connected in series, water film dedusting except acid tower, first grade scrubber,
Secondary scrubber and mist water separator provide lye by alkali liquor circulating system and recycle, the top of first grade scrubber and secondary scrubber
The spraying mechanism and SCR catalyst of lye are set, and the outlet above mist water separator is connected with exhaust blower by flue, exhaust blower
Outlet is connected with chimney.
2. fluorine-containing, the phosphorus castoff burning of height as described in claim 1 and tail gas SCR denitration device, which is characterized in that solid is useless
When gurry feeding, the expects pipe that bucket elevator reaches eminence is first passed through, falls into after feed funnel and is delivered to back downwards through chute again
Rotary kiln.
3. fluorine-containing, the phosphorus castoff burning of height as described in claim 1 and tail gas SCR denitration device, which is characterized in that rotary kiln
Lower section is equipped with screw ash-discharging device.
4. fluorine-containing, the phosphorus castoff burning of height as described in claim 1 and tail gas SCR denitration device, which is characterized in that rotary kiln
For oblique setting, and lower angle of internal friction is set as 1.5 °.
5. fluorine-containing, the phosphorus castoff burning of height as described in claim 1 and tail gas SCR denitration device, which is characterized in that waste heat pot
Furnace is also connected with boiler feedwater pipeline, vapour-discharge tube road and emptying pipeline.
6. fluorine-containing, the phosphorus castoff burning of height as described in claim 1 and tail gas SCR denitration device, which is characterized in that level-one is washed
The spraying mechanism for washing the top of tower and secondary scrubber is equipped with multilayer by different height, and each level is equipped with multiple spray throwers
Structure.
7. fluorine-containing, the phosphorus castoff burning of height as described in claim 1 and tail gas SCR denitration device, which is characterized in that fog point
Cyclone separator or cyclone hydraulic separators are selected from from device.
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| CN201821655261.7U CN209271188U (en) | 2018-10-11 | 2018-10-11 | A kind of high fluorine-containing, phosphorus castoff burning and tail gas SCR denitration device |
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| CN201821655261.7U CN209271188U (en) | 2018-10-11 | 2018-10-11 | A kind of high fluorine-containing, phosphorus castoff burning and tail gas SCR denitration device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109012171A (en) * | 2018-10-11 | 2018-12-18 | 江苏三井环保股份有限公司 | A kind of high fluorine-containing, phosphorus castoff burning and tail gas SCR denitration device and treatment process |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109012171A (en) * | 2018-10-11 | 2018-12-18 | 江苏三井环保股份有限公司 | A kind of high fluorine-containing, phosphorus castoff burning and tail gas SCR denitration device and treatment process |
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