CN209130887U - A kind of siliceous waste liquid/exhaust treatment system - Google Patents
A kind of siliceous waste liquid/exhaust treatment system Download PDFInfo
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- CN209130887U CN209130887U CN201821776260.8U CN201821776260U CN209130887U CN 209130887 U CN209130887 U CN 209130887U CN 201821776260 U CN201821776260 U CN 201821776260U CN 209130887 U CN209130887 U CN 209130887U
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- pipeline
- incinerator
- flue gas
- cooling
- alkali cleaning
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- 239000007788 liquid Substances 0.000 title claims abstract description 41
- 239000002699 waste material Substances 0.000 title claims abstract description 30
- 239000003546 flue gas Substances 0.000 claims abstract description 59
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 58
- 239000003513 alkali Substances 0.000 claims abstract description 50
- 238000004140 cleaning Methods 0.000 claims abstract description 47
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 38
- 239000007921 spray Substances 0.000 claims abstract description 23
- 238000001816 cooling Methods 0.000 claims abstract description 12
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 4
- 238000005406 washing Methods 0.000 claims abstract description 4
- 239000002253 acid Substances 0.000 claims description 32
- 238000010521 absorption reaction Methods 0.000 claims description 26
- 239000007789 gas Substances 0.000 claims description 22
- 230000003472 neutralizing effect Effects 0.000 claims description 12
- 150000003839 salts Chemical class 0.000 claims description 9
- 238000003860 storage Methods 0.000 claims description 8
- 238000012545 processing Methods 0.000 claims description 7
- 230000002378 acidificating effect Effects 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 14
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 7
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 7
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 abstract description 6
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 abstract description 6
- 239000000908 ammonium hydroxide Substances 0.000 abstract description 6
- 239000004202 carbamide Substances 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 6
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 230000000149 penetrating effect Effects 0.000 abstract description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 8
- 230000009286 beneficial effect Effects 0.000 description 8
- 239000000498 cooling water Substances 0.000 description 7
- 239000000243 solution Substances 0.000 description 7
- 238000002485 combustion reaction Methods 0.000 description 6
- 239000000428 dust Substances 0.000 description 5
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 4
- 229920005591 polysilicon Polymers 0.000 description 4
- 239000000377 silicon dioxide Substances 0.000 description 4
- 239000008187 granular material Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000006386 neutralization reaction Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 229920006395 saturated elastomer Polymers 0.000 description 3
- 239000002912 waste gas Substances 0.000 description 3
- 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 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 239000003518 caustics Substances 0.000 description 2
- 229910052681 coesite Inorganic materials 0.000 description 2
- 229910052906 cristobalite Inorganic materials 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000010808 liquid waste Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000011819 refractory material Substances 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 229910052682 stishovite Inorganic materials 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 229910052905 tridymite Inorganic materials 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
Abstract
The utility model relates to a kind of siliceous waste liquid/exhaust treatment systems, including incinerator, denitrating system, cooling-cycle device, alkaline cleaner and after-treatment device, the denitrating system connect with the incinerator by pipeline and sprays into denitrification reducing agent into the incinerator, the bottom of the incinerator connect with the cooling-cycle device and will burn in the flue gas emission to the cooling-cycle device generated, the cooling-cycle device is connect with the alkaline cleaner by pipeline with will be in flue gas emission to alkaline cleaner after cooling, the alkaline cleaner is by washing flue gas to penetrating lye inside it, the after-treatment device connect with the alkaline cleaner and discharges after handling the flue gas emission after alkali cleaning into after-treatment device.The utility model is by the way that incinerator to be connect with denitrating system, and in incinerator burning process, the burner hearth high-temperature region of incinerator sprays into ammonium hydroxide or urea by denitrating system, can be nitrogen and water by the conversion of nitrogen oxides in flue gas, effectively reduce the discharge of NOx.
Description
Technical field
The utility model relates to waste treatment apparatus, and in particular to a kind of siliceous waste liquid/exhaust treatment system.
Background technique
With the development of polysilicon or organosilicon industry, production process influenced caused by environment more and more attention has been paid to.
Inflammable and explosive, toxic, corrosive exhaust gas and waste liquid can be generated in production process, if mishandling, it may occur that safety accident
With pollute the environment.These waste gas and waste liquids how are safely and effectively handled, environmental protection, circular economy, energy conservation, consumption reduction etc. are met
Aspect requirement, preferably solution polysilicon or environmental pollution and energy consumption problem in organic silicon production process, it has also become be related to
The big problem that can polysilicon or organosilicon industry develop in a healthy way.In the design and producing of polysilicon or organosilicon project, answer
Advanced technologies are taken, thoroughly effectively waste gas and waste liquid is handled, to reduce the harm to environment, this is more to ensuring
The sound development of crystal silicon or organosilicon industry has reality and long-range meaning.
Utility model content
Technical problem to be solved in the utility model is in view of the deficiencies of the prior art, to provide a kind of siliceous waste liquid/useless
Gas processing system.
The technical solution that the utility model solves above-mentioned technical problem is as follows: a kind of siliceous waste liquid/exhaust treatment system, packet
Incinerator, denitrating system, cooling-cycle device, alkaline cleaner and after-treatment device are included, the denitrating system passes through pipeline and institute
It states incinerator and connects and spray into the incinerator denitrification reducing agent, the bottom of the incinerator and the cooling-cycle device
Connect simultaneously will burn generate flue gas emission to the cooling-cycle device in, the cooling-cycle device pass through pipeline with it is described
Alkaline cleaner connection is with by flue gas emission to alkaline cleaner after cooling, and the alkaline cleaner is by spraying into lye inside it
Wash flue gas, the after-treatment device connect with the alkaline cleaner and fill the flue gas emission after alkali cleaning to post-processing
It is discharged after setting processing.
The beneficial effects of the utility model are: the utility model is by the way that incinerator to be connect with denitrating system, in incinerator
In burning process, the burner hearth high-temperature region of incinerator sprays into ammonium hydroxide or urea by denitrating system, can be by the nitrogen oxides in flue gas
It is converted into nitrogen and water, effectively reduces the discharge of NOx.
Based on the above technical solution, the utility model can also do following improvement.
Further, the cooling-cycle device includes chilled water tank, chilled absorbing tower, chilling acid tank and heat exchanger, described
Chilled water tank connect with the chilled absorbing tower upper end by pipeline and sprays into chilled water (chw) into the chilled absorbing tower；The urgency
The lower end on cold absorption tower connect with the chilling acid tank and the acidic liquid generated in chilled absorbing tower is collected into the chilling
In sour tank, the lower end of the chilling acid tank passes through the inlet communication of pipeline and the heat exchanger, and the outlet of the heat exchanger passes through
Pipeline is connected to and in communication with the chilled absorbing tower upper end will be recycled through overcooled acidic liquid.
Beneficial effect using above-mentioned further scheme is: cooling-cycle device can be by chilled water tank to chilled absorbing tower
Interior penetrating chilled water (chw), flue gas connect Cold Water Exposure heat exchange by Shi Keyu, are cooled to 80 DEG C in a very short period of time hereinafter, can have
Effect avoids generating the harmful substances such as dioxin；HCL gas in flue gas is dissolved in water and forms dilute hydrochloric acid, changes in subsequent entrance heat exchanger
Chilled water (chw) recycling is re-used as after heat is cooling.
Further, the cooling-cycle device further includes neutralizing tank, and the neutralizing tank passes through pipeline and the chilling acid tank
Connection is to be neutralized the concentrated acid solution discharged from the chilling acid tank.
Beneficial effect using above-mentioned further scheme is: dense after the dilute hydrochloric acid in chilling acid tank is recycled repeatedly
Degree becomes larger, and forms concentrated acid, the concentrated acid in chilling acid tank can be discharged into neutralizing tank and be neutralized.
Further, the alkaline cleaner includes alkali cleaning absorption tower and lye storage device, the gas outlet of the chilling acid tank
It is connected to by pipeline with the lower part on the alkali cleaning absorption tower, the top on the alkali cleaning absorption tower is equipped with lye spray head, the alkali
Liquid spray head is connected to the lye storage device by pipeline and sprays into lye into the alkali cleaning absorption tower；The alkali cleaning absorbs
The upper end of tower is connected to the after-treatment device.
Beneficial effect using above-mentioned further scheme is: the setting on alkali cleaning absorption tower and lye storage device, can be right
The gas of chilling acid tank discharge carries out alkali cleaning neutralization, and the HCl in flue gas is fully absorbed, and guarantees that flue gas emission is up to standard.
Further, the alkaline cleaner further includes alkali cleaning circulating pump, and the top on the alkali cleaning absorption tower is also equipped with abraum salt
Sprinkler head, the abraum salt sprinkler head are located at the lower section of the lye spray head and by the alkali cleaning circulating pumps on pipeline and the pipeline
It is connected to the lower end on the alkali cleaning absorption tower.
Beneficial effect using above-mentioned further scheme is: the setting of alkali cleaning circulating pump, no can will neutralize complete
Lye is recycled.
Further, the after-treatment device includes pipeline heater, and the pipeline heater is mounted on the row of the flue gas
It puts on pipeline.
Beneficial effect using above-mentioned further scheme is: the setting of pipeline heater, the flue gas after can making alkali cleaning exist
It is heated in pipeline by pipeline heater, the moisture carried secretly in flue gas all becomes dry saturated steam state, is conducive to the smooth row of flue gas
Out, the liquid water droplets carried secretly in flue gas are also prevented to be adhered on follow up device bag filter, cause the reduction of bag-type dust efficiency.
Further, the after-treatment device further includes bag filter, and the bag filter is mounted on the flue gas
On discharge tube, the pipeline heater is between the bag filter and the alkaline cleaner.
Beneficial effect using above-mentioned further scheme is: the setting of bag filter can make the flue gas after being heated
By filtering, it is removed the silica in flue gas, exhaust gas dust is granular material discharged up to standard.
It further, further include chimney and air-introduced machine, the after-treatment device passes through under the air-introduced machine and the chimney
End connection.
Further, the incinerator is vertical incinerator.
Beneficial effect using above-mentioned further scheme is: since incinerated matter siliceous in incinerator is easy Crystallization Plugging combustion
Burner spray head, using vertical incinerator, the very good solution rough sledding of burner blocking, while liquid waste spray gun is also not easy
It burns partially and licks refractory material.
Detailed description of the invention
Fig. 1 is the process flow chart of the siliceous waste liquid/exhaust treatment system of the utility model.
In attached drawing, parts list represented by the reference numerals are as follows:
1, incinerator；2, denitrating system；
3, cooling-cycle device；31, chilled water tank；32, chilled absorbing tower；33, chilling acid tank；34, heat exchanger；35, in
And tank；36, abraum salt water pump；37, chilling water pump；
4, alkaline cleaner；41, alkali cleaning absorption tower；42, alkali cleaning circulating pump；43, lye spray head；44, abraum salt sprinkler head；
5, after-treatment device；51, pipeline heater；52, bag filter；
6, chimney；61, air-introduced machine.
Specific embodiment
The principles of the present invention and feature are described below in conjunction with attached drawing, example is served only for explaining that this is practical
It is novel, it is not intended to limit the scope of the utility model.
As shown in Figure 1, a kind of siliceous waste liquid/exhaust treatment system of the present embodiment, including incinerator 1, denitrating system 2,
Cooling-cycle device 3, alkaline cleaner 4 and after-treatment device 5, the denitrating system 2 are connect simultaneously by pipeline with the incinerator 1
Denitrification reducing agent is sprayed into the incinerator 1, the bottom of the incinerator 1 connect and will burn with the cooling-cycle device 3
It burns in the flue gas emission to the cooling-cycle device 3 generated, the cooling-cycle device 3 passes through pipeline and the alkaline cleaner
4 connections are with by flue gas emission after cooling to alkaline cleaner 4, the alkaline cleaner to penetrating lye inside it by washing
Flue gas, the after-treatment device 5 connect with the alkaline cleaner 4 and by the flue gas emissions after alkali cleaning to after-treatment device 5
It is discharged after middle processing.
Processing system in the present embodiment can carry out the mixture for the exhaust gas or waste liquid or waste gas and waste liquid for being passed through incinerator
Burning disposal sprays into ammonium hydroxide or urea by denitrating system during processing, by the nitrogen oxidation in the flue gas generated after burning
Object is converted into nitrogen and water.Then the flue gas after reaction is sent in cooling-cycle device again and is cooled down, liquid after cooling
Body is entered in cooling recirculation system and is reused, and gas after cooling, which advances to, carries out alkali cleaning, alkali cleaning in alkali cleaning absorption tower
Direct emission after gas afterwards is just handled by after-treatment device.
Siliceous exhaust gas/waste liquid is carried out high-temp combustion by the incinerator of the present embodiment under the action of combustion air, is generated
HCl、SiO2、CO2And the products such as vapor.If exhaust gas/waste liquid calorific value is lower in burning process, system fires investment supplement
Material is to maintain to burn.By the way that incinerator is connect with denitrating system, in incinerator burning process, the burner hearth high-temperature region of incinerator
Ammonium hydroxide or urea are sprayed by denitrating system, can be nitrogen and water by the conversion of nitrogen oxides in flue gas, effectively reduce NOx's
Discharge.
As shown in Figure 1, the embodiment of the present invention cooling-cycle device 3 includes chilled water tank 31, chilled absorbing tower 32, chilling
Sour tank 33 and heat exchanger 34, the chilled water tank 31 are connect with 32 upper end of chilled absorbing tower by pipeline and to the chillings
Chilled water (chw) is sprayed into absorption tower 32；The lower end of the chilled absorbing tower 32 connect with the chilling acid tank 33 and by chilled absorbing tower
The acidic liquid generated in 32 is collected into the chilling acid tank 33, and the lower end of the chilling acid tank 33 is changed by pipeline with described
The inlet communication of hot device 34, the outlet of the heat exchanger 34 by pipeline and 32 upper end of chilled absorbing tower be connected to and in communication with
It will be recycled through overcooled acidic liquid.Cooling-cycle device can spray into chilling into chilled absorbing tower by chilled water tank
Water, flue gas pass through Shi Keyu chilled water (chw) contact heat-exchanging, are cooled to 80 DEG C in a very short period of time hereinafter, can effectively avoid generating
The harmful substances such as dioxin；HCL gas in flue gas is dissolved in water and forms dilute hydrochloric acid, subsequent to enter in heat exchanger after the cooling that exchanges heat again
It is recycled as chilled water (chw).
The chilled water tank 31 of the present embodiment is actually the emergency water pot for being stored with industry water, which is used for urgency
Cooling water is sprayed into cold absorption tower.
In addition, the outer surrounding of 32 entrance of chilled absorbing tower of the present embodiment is disposed with cooling water spout, chilled water tank 31 and institute
The cooling water spout connection for stating the outer surrounding of 32 entrance of chilled absorbing tower is sprayed by cooling water spout into 32 entrance of chilled absorbing tower
Enter cooling water.The cooling water spout of the present embodiment can be any number.
It is additionally provided with cooling jacket on the lateral wall of the chilled absorbing tower 32 of the present embodiment, it is cold that circulation has been passed through in cooling jacket
But water is cooled down with the lateral wall to chilled absorbing tower 32, prevents the skin temperature of chilled absorbing tower 32 excessively high.
As shown in Figure 1, the embodiment of the present invention cooling-cycle device 3 further includes neutralizing tank 35, the neutralizing tank 35 passes through
Pipeline is connected to carry out neutralization discharge to the concentrated acid solution discharged in the chilling acid tank 33 with the chilling acid tank 33.Work as chilling
After dilute hydrochloric acid in sour tank is recycled repeatedly, concentration is become larger, and is formed concentrated acid, can be discharged into the concentrated acid in chilling acid tank
It is discharged again after being neutralized in neutralizing tank.The first opening and the second opening, first opening are additionally provided on the neutralizing tank 35
Positioned at the upper end of neutralizing tank 35, second opening is between the bottom of neutralizing tank 35, the first opening and the second opening
It is connected to by circulation line, the circulation line is equipped with abraum salt water pump 36, is additionally provided on the circulation line and arranges effluent brine
Pipeline out.
As shown in Figure 1, the embodiment of the present invention alkaline cleaner 4 includes alkali cleaning absorption tower 41 and lye storage device, it is described
The gas outlet of chilling acid tank 33 is connected to by pipeline with the lower part on the alkali cleaning absorption tower 41, the top on the alkali cleaning absorption tower 41
Lye spray head 43 is installed, the lye spray head 43 is connected to the lye storage device by pipeline and is absorbed to the alkali cleaning
Lye is sprayed into tower 41；The upper end on the alkali cleaning absorption tower 41 is connected to the after-treatment device 5.Alkali cleaning absorption tower and lye are deposited
The setting of storage device can carry out alkali cleaning neutralization to the gas that chilling acid tank discharges, prevent discharge flue gas acidity excessive.
As shown in Figure 1, the embodiment of the present invention alkaline cleaner 4 further includes alkali cleaning circulating pump 42, the alkali cleaning absorption tower 41
Top be also equipped with abraum salt sprinkler head 44, the abraum salt sprinkler head 44 is located at the lower section of the lye spray head 43 and passes through pipeline
And the alkali cleaning circulating pump 42 on the pipeline is connected to the lower end on the alkali cleaning absorption tower 41.The setting of alkali cleaning circulating pump, can be with
It will be recycled without neutralizing complete lye.
As shown in Figure 1, the embodiment of the present invention after-treatment device 5 includes pipeline heater 51, the pipeline heater 51
It is mounted on the discharge tube of the flue gas.The setting of pipeline heater, the flue gas after can making alkali cleaning is in the duct by pipeline
Heater heats, and the moisture carried secretly in flue gas all becomes dry saturated steam state, is conducive to being smoothly discharged for flue gas, is also prevented from flue gas
The liquid water droplets of middle entrainment are adhered on follow up device bag filter, cause the reduction of bag-type dust efficiency.Wherein, the pipeline
Heater 51 uses combustion heating mode.
As shown in Figure 1, the embodiment of the present invention after-treatment device 5 further includes bag filter 52, the bag filter
52 are mounted on the discharge tube of the flue gas, and the pipeline heater 51 is located at the bag filter 52 and fills with the alkali cleaning
It sets between 4.The setting of bag filter can make the flue gas after being heated by filtering, remove the silica in flue gas
It removes, exhaust gas dust is granular material discharged up to standard.
As shown in Figure 1, the siliceous waste liquid/exhaust treatment system of the present embodiment further includes chimney 6 and air-introduced machine 61, after described
Processing unit 5 is connected to by the air-introduced machine 61 with the lower end of the chimney 6.
As shown in Figure 1, the embodiment of the present invention incinerator 1 is vertical incinerator.Due to incinerated matter siliceous in incinerator
The phenomenon that being easy to produce Crystallization Plugging burner tip, using vertical incinerator, very good solution burner blocking it is unfavorable
Situation, while liquid waste spray gun is also not easy burning partially and licks refractory material.
The course of work of the siliceous waste liquid/exhaust treatment system of the present embodiment is, siliceous waste liquid/exhaust gas and combustion air from
The upper end of incinerator is passed into incinerator, siliceous waste liquid/exhaust gas burning and pyrolytic in incinerator after lighting, raw
At HCl, SiO2、CO2With the products such as vapor.If exhaust gas/waste liquid calorific value is lower in burning process, system supplements investment
Fuel maintains to burn.Denitrating system is connected on the side wall of incinerator, while combustion reaction carries out, system is to the burning
Ammonium hydroxide or urea are sprayed into furnace, react the flue gas of high temperature incineration in incinerator with ammonium hydroxide or urea, by the nitrogen in flue gas
Oxide is converted into nitrogen and water.Then the flue gas Jing Guo denitration enters directly into chilled absorbing tower, chilled absorbing tower entrance
Outer surrounding is disposed with cooling water spout, with chilled water (chw) contact heat-exchanging when flue gas passes through, is cooled to 80 DEG C in a very short period of time
Hereinafter, the HCl gas in flue gas, which is dissolved in water, forms dilute hydrochloric acid, as chilled water (chw) circulation after the subsequent interior heat exchange cooling into heat exchanger
It uses.Flue gas after chilling enters caustic wash tower, and by after alkali liquid washing in caustic wash tower, remaining HCl is completely absorbed in flue gas,
Flue-gas temperature further decreases.Flue gas after alkali cleaning is heated by pipeline heater in the duct, the moisture carried secretly in flue gas
All become dry saturated steam state.Then the flue gas after being heated is filtered by bag filter, the SiO in flue gas2Solid particle
It is removed, exhaust gas dust is granular material discharged up to standard.Eventually pass through whole system treated that flue gas up to standard is discharged into greatly by chimney
In gas.
In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " suitable
The orientation or positional relationship of the instructions such as hour hands ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " is orientation based on the figure
Or positional relationship, be merely for convenience of describing the present invention and simplifying the description, rather than the device of indication or suggestion meaning or
Element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as the limit to the utility model
System.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.The meaning of " plurality " is at least two, such as two in the description of the present invention,
It is a, three etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. terms shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be
Mechanical connection, is also possible to be electrically connected；It can be directly connected, two can also be can be indirectly connected through an intermediary
The interaction relationship of connection or two elements inside element, unless otherwise restricted clearly.For the common skill of this field
For art personnel, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In the present invention unless specifically defined or limited otherwise, fisrt feature is in the second feature " on " or " down "
It can be that the first and second features directly contact or the first and second features are by intermediary mediate contact.Moreover, first is special
Sign can be fisrt feature above the second feature " above ", " above " and " above " and be directly above or diagonally above the second feature, or only
Indicate that first feature horizontal height is higher than second feature.Fisrt feature under the second feature " below ", " below " and " below " can be with
It is that fisrt feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of above-mentioned term
It states and is necessarily directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be with
It can be combined in any suitable manner in any one or more of the embodiments or examples.In addition, without conflicting with each other, this field
Technical staff can by the feature of different embodiments or examples described in this specification and different embodiments or examples into
Row combination and combination.
Although the embodiments of the present invention have been shown and described above, it is to be understood that above-described embodiment is
Illustratively, it should not be understood as limiting the present invention, those skilled in the art are in the scope of the utility model
Inside it can make changes, modifications, alterations, and variations to the above described embodiments.
Claims (9)
1. a kind of siliceous waste liquid/exhaust treatment system, which is characterized in that including incinerator, denitrating system, cooling-cycle device,
Alkaline cleaner and after-treatment device, the denitrating system are connect with the incinerator and are sprayed into the incinerator by pipeline
Denitrification reducing agent, the bottom of the incinerator connect with the cooling-cycle device and will burn the flue gas emission generated described in
In cooling-cycle device, the cooling-cycle device is connect with the alkaline cleaner by pipeline with by flue gas emission after cooling
Into alkaline cleaner, the alkaline cleaner by washing flue gas to lye is sprayed into inside it, the after-treatment device with it is described
Alkaline cleaner is connected and is discharged after handling the flue gas emission after alkali cleaning into after-treatment device.
2. a kind of siliceous waste liquid/exhaust treatment system according to claim 1, which is characterized in that the cooling-cycle device
Including chilled water tank, chilled absorbing tower, chilling acid tank and heat exchanger, the chilled water tank passes through pipeline and the chilled absorbing tower
Upper end connects and sprays into chilled water (chw) into the chilled absorbing tower；The lower end of the chilled absorbing tower is connect with the chilling acid tank
And the acidic liquid generated in chilled absorbing tower is collected into the chilling acid tank, the lower end of the chilling acid tank passes through pipeline
Outlet with the inlet communication of the heat exchanger, the heat exchanger is connected to and in communication with by pipeline and the chilled absorbing tower upper end
Will be recycled through overcooled acidic liquid.
3. a kind of siliceous waste liquid/exhaust treatment system according to claim 2, which is characterized in that the cooling-cycle device
It further include neutralizing tank, the neutralizing tank is connected to the chilling acid tank by pipeline with dense to discharging from the chilling acid tank
Acid solution is neutralized.
4. a kind of siliceous waste liquid/exhaust treatment system according to any one of the claim 1 to 3, which is characterized in that the alkali cleaning
Device includes alkali cleaning absorption tower and lye storage device, and the gas outlet of the chilling acid tank passes through pipeline and the alkali cleaning absorption tower
Lower part connection, the top on the alkali cleaning absorption tower is equipped with lye spray head, and the lye spray head passes through pipeline and the lye
Storage device is connected to and sprays into lye into the alkali cleaning absorption tower；The upper end on the alkali cleaning absorption tower and the after-treatment device
Connection.
5. a kind of siliceous waste liquid/exhaust treatment system according to claim 4, which is characterized in that the alkaline cleaner also wraps
Alkali cleaning circulating pump is included, the top on the alkali cleaning absorption tower is also equipped with abraum salt sprinkler head, and the abraum salt sprinkler head is located at the alkali
It the lower section of liquid spray head and is connected to by the alkali cleaning circulating pump on pipeline and the pipeline with the lower end on the alkali cleaning absorption tower.
6. according to claim 1 to a kind of any one of 3,5 siliceous waste liquid/exhaust treatment systems, which is characterized in that after described
Processing unit includes pipeline heater, and the pipeline heater is mounted on the discharge tube of the flue gas.
7. a kind of siliceous waste liquid/exhaust treatment system according to claim 6, which is characterized in that the after-treatment device is also
Including bag filter, the bag filter is mounted on the discharge tube of the flue gas, and the pipeline heater is located at institute
It states between bag filter and the alkaline cleaner.
8. according to claim 1 to a kind of any one of 3,5,7 siliceous waste liquid/exhaust treatment systems, which is characterized in that also wrap
Chimney and air-introduced machine are included, the after-treatment device is connected to by the air-introduced machine with the lower end of the chimney.
9. according to claim 1 to a kind of any one of 3,5,6,8 siliceous waste liquid/exhaust treatment systems, which is characterized in that institute
Stating incinerator is vertical incinerator.
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| CN201821776260.8U CN209130887U (en) | 2018-10-30 | 2018-10-30 | A kind of siliceous waste liquid/exhaust treatment system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110805916A (en) * | 2019-10-08 | 2020-02-18 | 北京航化节能环保技术有限公司 | A incineration disposal device for organosilicon trade waste gas waste liquid |
| CN112156610A (en) * | 2020-08-24 | 2021-01-01 | 浙江天成工程设计有限公司 | Method for effectively removing harmful substances in organic waste liquid combustion flue gas |
-
2018
- 2018-10-30 CN CN201821776260.8U patent/CN209130887U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110805916A (en) * | 2019-10-08 | 2020-02-18 | 北京航化节能环保技术有限公司 | A incineration disposal device for organosilicon trade waste gas waste liquid |
| CN110805916B (en) * | 2019-10-08 | 2021-06-11 | 北京航化节能环保技术有限公司 | A incineration disposal device for organosilicon trade waste gas waste liquid |
| CN112156610A (en) * | 2020-08-24 | 2021-01-01 | 浙江天成工程设计有限公司 | Method for effectively removing harmful substances in organic waste liquid combustion flue gas |
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