CN208532510U - The thermochemical treatment system of high organic waste liquid with high salt - Google Patents
The thermochemical treatment system of high organic waste liquid with high salt Download PDFInfo
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- CN208532510U CN208532510U CN201820734351.9U CN201820734351U CN208532510U CN 208532510 U CN208532510 U CN 208532510U CN 201820734351 U CN201820734351 U CN 201820734351U CN 208532510 U CN208532510 U CN 208532510U
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Abstract
The utility model provides a kind of thermochemical treatment system of high organic waste liquid with high salt, is related to liquid waste disposal technique field.The thermochemical treatment system effectively desalination and can reduce COD, and not generate secondary pollution, and salt problem of resistance is not present.The thermochemical treatment system includes the pretreatment unit successively fluidly connected, carbonation unit, oxidation unit, desalination evaporation element, high organic waste liquid with high salt is subjected to atomization process in the pretreatment unit, carbonization treatment is carried out for dehydration carbonization medium with the concentrated sulfuric acid in the carbonation unit, oxidation processes are carried out in the presence of oxidant in the oxidation unit, desalination evaporation process is carried out in the desalination evaporation element.The thermochemical treatment system of high organic waste liquid with high salt provided by the utility model is suitable for handling high organic waste liquid with high salt.
Description
Technical field
The utility model relates to industrial wastes processing technology fields, more particularly to a kind of thermalization of high organic waste liquid with high salt
Learn processing system.
Background technique
Amount liquid with the development of chemical industry industry, the waste liquid containing high organic matter with high salt increases year by year, therefore finds
A kind of focus becoming global concern for environmental-friendly processing system.The chemical industry industry in China in rapid development,
Occupy considerable status in gross national product.The fast development of China's chemical industry is to sacrifice ecological environment as generation
Valence.China's chemical industry number of the enterprise is more, energy resource utilization rate is low, pollutant emission quantity is big, has had more than ring in recent years
Border bearing capacity sign.According to there is statistical data, currently, chemical raw material and chemicals industry discharge 31.2 hundred million tons of industrial wastewater, divide
The 13.5% of national Industrial " three Waste " total emission volumn is not accounted for, occupies the 25th.Wherein, 32.8 ten thousand tons of COD, ammonia are discharged
9.3 ten thousand tons of nitrogen, 97.5 ten thousand tons of sulfur dioxide, 54.0 ten thousand tons of nitrogen oxides occupy the 4th, 1,4,4 of industrial circle respectively.It is some
Characteristic contamination such as ammonia nitrogen, cyanide, hazardous waste are even more that height ranks first.Exhaust gas, wastewater pollution source state in Chinese Ministry of Environmental Protection's announcement
In key monitoring enterprise of family, there are 482 and 803 in petroleum and chemical company respectively, total to account for key monitoring number of the enterprise
39.2%.Since processing means cannot thoroughly solve environmental problem, waste and the environmental pressure of energy resource are caused, is exacerbated
The contradiction of industry development and resource environment.
In these industrial wastes, 90% is the liquid of high organic matter with high salt, and this kind of liquid handling is got up difficulty, traditional
The method of physics or biochemistry, which is dealt with, all there is a problem that very much, and mainly have: (1) conventional biochemical processing method is main
There is the tolerance level to salinity, this kind of industrial wastewater is commonly high slat-containing wastewater, salt content all 5%~20%,
It is even higher.And the tolerance of salinity of bacterium is 2%~4% in conventional biochemical processing method, in this way at conventional biochemical processing method
Managing such waste water there is the problem for being difficult to biochemistry；(2) conventional Fenton processing method handles such waste water and there is productions
Raw a large amount of iron cement, causes serious secondary pollution, while this method is easy to cause device board during handling such waste water
Knot, is easy to cause the damage of equipment, and maintenance cost is high, and in addition this method needs to put into a large amount of hydrogen peroxide and molysite, cause compared with
High operating cost；(3) Wet Oxidation Process needs the technology of high temperature and high pressure, and the processing capacity of device is also restrained, right
The investment of equipment is high, and operating cost is high；(4) existing developed MVR technology has good removal effect to salinity in high concentration water,
But high organic content in this kind of industrial wastewater, containing many corrosive ions, these factors lead to many high concentration waters not
It can enter MVR to be handled.
Utility model content
The utility model provides a kind of thermochemical treatment system of high organic waste liquid with high salt, is effectively removing salinity, drop
It is reduced while low COD and even avoids secondary pollution, and will not blocked, polluting device.
The embodiment of the utility model is as follows:
The utility model provides a kind of thermochemical treatment system of high organic waste liquid with high salt, which is characterized in that the heat
Chemical processing system includes:
For carrying out the pretreatment unit of atomization process；
For being the carbonation unit for being dehydrated carbonization medium and carrying out carbonization treatment with the concentrated sulfuric acid, the carbonation unit is connected to institute
Pretreatment unit is stated to fluidly connect later and with the pretreatment unit；
For carrying out the oxidation unit of oxidation processes in the presence of oxidant, the oxidation unit is connected to the carbonization
It is fluidly connected after unit and with the carbonation unit；
For carrying out the desalination evaporation element of desalination evaporation process, the desalination evaporation element is connected to the oxidation unit
It fluidly connects later and with the oxidation unit.
Specifically, the pretreatment unit includes pretreatment kettle, and blender and ultrasonic wave height are equipped in the pretreatment kettle
Frequency oscillator；
The carbonation unit includes carbonization kettle, and blender is equipped in the carbonization kettle, and outside is equipped with heating device；
The oxidation unit includes stills for air blowing, and blender is equipped in the stills for air blowing, and outside is equipped with heating device；
The deoxidation evaporation element includes desalination evaporating kettle, and the outside of the desalination evaporating kettle is equipped with heating device.
Further, the stills for air blowing lower part is equipped with the medicament input port for adding oxidant.
Further, described to fluidly connect as pipeline connection.
Further, the thermochemical treatment system further includes the separator point for separating salt and the concentrated sulfuric acid
From the separator separation is connected to after the desalination evaporation element and fluidly connects with the desalination evaporation element；Institute
It states separator separation and is connected with concentrated sulfuric acid recycling can later, recycle the concentrated sulfuric acid after separating with salt；Preferably, the concentrated sulfuric acid returns
It is connected via concentrated sulfuric acid recovery tube with the carbonation unit after closed cans.
Further, the thermochemical treatment system further includes heat exchanger, and it is single that the heat exchanger is connected to the pretreatment
It fluidly connects before member and with the pretreatment unit, for that will exchange heat that treated, waste liquid will be supplied to the pretreatment unit；
Preferably, the heat exchanger is corrosion-resisting tubular heat exchanger, and the desalination evaporation element enters with the shell of the heat exchanger later
Mouth is connected, and the housing outlets of the heat exchanger are connected with fixed gas absorption tower.
Further, the bottom of the desalination evaporation element is connect with the Top fluidic of the separator.
Further, the top of the pretreatment unit is connect with the lower flow of the carbonation unit；The carbonization is single
The top of member is connect with the upper flow of the oxidation unit, and the lower part of the bottom of the carbonation unit and the oxidation unit is flowed
Body connection；The top of the oxidation unit is connect with the upper flow of the desalination evaporation element, the desalination evaporation element
Top and the housing inlet port of the heat exchanger fluidly connect, and the bottom of the desalination evaporation element and the top of the separator are flowed
Body connection.
Further, the blender is dasher, is equipped with multiple impellers leaf.
The utility model provides a kind of thermochemical treatment system of high organic waste liquid with high salt, passes sequentially through atomization, dense sulphur
Acid is dehydration mediators carbonization treatment, oxidation processes, desalination evaporation process, effectively removes salinity, COD value is reduced to 300mg/L
Hereinafter, solve the problems, such as salinity tolerance level in biochemical processing method, meanwhile, in the process it is not necessary that a large amount of hydrogen peroxide is added
And molysite, a large amount of iron cement will not be generated, and then avoid secondary pollution, at the same also avoid equipment it is hardened, blocking.
Compared with prior art, the thermochemical treatment system of high organic waste liquid with high salt provided by the utility model have with
It is lower the utility model has the advantages that
1) secondary pollution is avoided while effectively removing salinity, reducing COD, will not also blocked, polluting device.
2) concentrated sulfuric acid can be preferably recycled, is recycled, economic benefit is provided.
3) there is very strong removal effect to the organic matter that COD is more than 200,000 mg/L, it can be complete by the organic matter in waste liquid
Oxidation removal, COD is no more than 300mg/L in treated waste water.
4) waste liquid is preheated while being condensed to the vapor evaporated, has saved energy consumption, there is pole
Big economic benefit.
5) processing up to standard has been carried out to tail gas, will not generation environment pollution the problems such as.
Detailed description of the invention
In order to illustrate more clearly of the technical solution of the utility model embodiment, embodiment or the prior art will be retouched below
Attached drawing needed in stating is briefly described, it should be apparent that, the accompanying drawings in the following description is only the utility model
Some embodiments for those of ordinary skill in the art without any creative labor, can be with root
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is that the structure of the thermochemical treatment system for the high organic waste liquid with high salt that an embodiment of the present invention provides is shown
It is intended to；
Fig. 2 is the structure of the thermochemical treatment system for the high organic waste liquid with high salt that another embodiment of the utility model provides
Schematic diagram.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describing, it is clear that described embodiment is only a part of the embodiment of the utility model, rather than all
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained, fall within the protection scope of the utility model.
As shown in Figure 1, the utility model embodiment provides a kind of thermochemical treatment system of high organic waste liquid with high salt,
Including pretreatment unit 100, high organic waste liquid with high salt is subjected to atomization process in the pretreatment unit 100；Carbonization is single
Member 200, carbonation unit 200 is connected to after pretreatment unit 100 and fluidly connects with pretreatment unit 100, in carbonation unit
It is that dehydration carbonization medium carries out carbonization treatment with the concentrated sulfuric acid in 200；Oxidation unit 300, it is single that oxidation unit 300 is connected to carbonization
It fluidly connects after member 200 and with carbonation unit 200, in oxidation unit 300, is carried out at oxidation in the presence of oxidant
Reason；Desalination evaporation element 400, desalination evaporation element 400 are connected to after oxidation unit 300 and connect with 30 fluid of oxidation unit
It connects, desalination evaporation process is carried out in desalination evaporation element 40.
It is with high salt to refer to 1% or more salt content.High organic matter refer to organic concentration height, COD value 2000mg/L with
On.Herein, high organic waste liquid with high salt refer to 1% or more salt content, COD value 2000mg/L or more waste liquid.
The utility model embodiment provides a kind of thermochemical treatment system of high organic waste liquid with high salt, in pretreatment unit
By the principle of ultrasonic vibration by waste liquid uniform atomizing in 100, it is situated between in carbonation unit 200 using the concentrated sulfuric acid as dehydration later
Matter carries out carbonization treatment to the waste liquid after uniform atomizing in pretreatment unit 100, is carbonized with regard to the organic matter in waste liquid.It
Afterwards, the liquid after carbonization and the steam being evaporated are each led into oxidation unit 300, and oxygen is carried out in the presence of oxidant
Change processing, the micro- carbon particle generated to remaining organic matter and organics dehydration carry out oxidation removal.Later, the liquid after oxidation
Body and the steam being evaporated are passed into desalination evaporation element, are evaporated dehydration desalination, the salt after dehydration by evaporation is precipitated to
Desalination evaporating kettle is discharged in reactor bottom together with the concentrated sulfuric acid.The thermochemical treatment system of the utility model embodiment, in the heat
In chemical processing system, the waste liquid of high organic matter with high salt is successively atomized, is carbonized, is aoxidized, desalination evaporation process, to COD
With very strong removal effect, the organic matter complete oxidation in waste liquid can be removed, the COD of the water after evaporative condenser is no more than
300mg/L, while having good removal effect to salinity, there is no salinity tolerance level problems in biochemical processing method；And nothing
A large amount of hydrogen peroxide and molysite need to be used, a large amount of iron cement will not be generated, and then avoid secondary pollution, while also avoiding setting
Slave board knot, blocking.
The high organic waste liquid with high salt of the thermochemical treatment system processing of the utility model embodiment, salt content 5
~20%, COD value >=200,000 mg/L.This kind of liquid handling is got up relatively difficult, and not only salt content is high, and content of organics
Height causes biochemical method to be not suitable for because of salinity tolerance level problem containing many corrosive ions, while to salinity removal effect
Preferable MVR technology is not suitable for because of strong corrosive again.And in existing wet oxidation technology, it usually needs high temperature and high pressure,
So that processing capacity is limited, and equipment investment is high, operating cost is high.
The high organic waste liquid with high salt of the thermochemical treatment system processing of the utility model embodiment is that petroleum and chemical industry are led
The waste liquid in domain, usually tarry liquid.
Herein, context physically is not meant that " before ", " later ", and is referred on processing direction
Front and back." A is located at after B ", " A is connected to after B ", which refer to, handles the downstream that A on direction is located at B, and substance flow direction is by B to A.
For example, " carbonation unit is connected to after pretreatment unit and fluidly connects with pretreatment unit " specifically refers in processing direction
On, carbonation unit is located at the downstream of pretreatment unit, and the flow direction of substance is by pretreatment unit to carbonation unit, by pretreatment list
Substance in member is supplied to carbonation unit." before heat exchanger is connected to the pretreatment unit " does not mean that geographically
Heat exchanger is located at the upstream of pretreatment unit, but heat exchanger is located at the upstream of pretreatment unit on processing direction, substance
Flow direction is to flow to pretreatment unit by heat exchanger.
As shown in Fig. 2, pretreatment unit 100 is pretreatment kettle 1.Pre-processing kettle 1 is the reaction that can carry out atomization process
Kettle.Carbonation unit 200 is carbonization kettle 2, and carbonization kettle 2 is the reaction kettle that can carry out carburizing reagent.Pre-process kettle 1 and carbonization kettle 2
Blender, heater can be set.
Referring to Fig. 2, pre-processes and fluidly connected between kettle 1 and carbonization kettle 2 by pipeline realization.
As shown in Fig. 2, being equipped with blender in pretreatment kettle 1.Starting blender can be stirred liquid in kettle, maximum limit
Degree reaches the uniform purpose of liquid.The blender can be dasher.It is stirred it is preferred that the blender can be equipped with multilayer
Blade strengthens the stirring to liquid in kettle.
The top of pretreatment kettle 1 is connected with the middle part of carbonization kettle or lower part by pipeline.Fig. 2 show pretreatment kettle 1
Top is connected with the lower part of carbonization kettle by pipeline, and the waste liquid after the atomization in pretreatment is provided in carbonization kettle 2.
Atomization process is carried out to waste liquid by ultrasonic wave high frequency oscillator in pretreatment kettle.Atomization process will be in waste liquid
Most of water and organic matter processing are the form of mist, remaining is still liquid form.That is, the aerosol of atomization process includes gas
Product and product liquid, gaseous product are mist, and product liquid is the waste liquid after atomization.By between pretreatment kettle 1 and carbonization kettle 2
Pipeline the aerosol for pre-processing kettle 1 is passed into carbonization kettle 2 and carries out subsequent processing.As shown in Fig. 2, body product and liquid
Product is passed into carbon by the same pipeline between pretreatment kettle 1 and carbonization kettle 2 by same outlet discharge pretreatment kettle 1
Change in kettle 2.
Oxidation unit 300 is stills for air blowing 3, and stills for air blowing 3 are the reaction kettle that can carry out oxidation reaction.
As shown in Fig. 2, the top of carbonization kettle 2 is connected with the middle part of stills for air blowing 3 or top by pipeline.The bottom of carbonization kettle
It is connected with the middle part of stills for air blowing 3 or lower part by pipeline.Fig. 2 show the top of carbonization kettle 2 and the top of stills for air blowing 3 passes through pipe
Road is connected, and the steam in carbonization kettle is provided in stills for air blowing 3.The bottom of carbonization kettle 2 and the lower part of stills for air blowing 3 pass through pipeline phase
Even, the liquid after the carbonization in carbonization kettle 2 is provided in stills for air blowing 3.
Carbonization treatment is carried out by dehydration mediators of the concentrated sulfuric acid in carbonization kettle 2, carbonized product includes the steam and carbon generated
Liquid after change.The liquid after steam, carbonization is passed into stills for air blowing 3 respectively by the pipeline between carbonization kettle 2 and stills for air blowing 3
In.
Carbonization kettle 2 also is provided with blender.Starting blender can be stirred liquid in kettle.To the further limit of blender
Determine as described above, details are not described herein.
Desalination evaporation element 400 is desalination evaporating kettle 4, and desalination evaporating kettle 4 is the reaction that can carry out desalination evaporation process
Kettle.In the reaction kettle, salt is precipitated to reactor bottom after desalination evaporation process.
The top of stills for air blowing 3 is connected with the middle part of desalination evaporating kettle 4 or top by pipeline.It is connected.The bottom of stills for air blowing
It is connected with the middle part of desalination evaporating kettle 4 or lower part by pipeline.For example, the top of stills for air blowing 3 and the middle part of desalination evaporating kettle 4 are logical
Piping is connected, and the steam in stills for air blowing 3 is provided in desalination evaporating kettle.Under the bottom of stills for air blowing 3 and desalination evaporating kettle 4
Portion is connected, and the waste liquid after 3 internal oxidition of stills for air blowing is provided in desalination evaporating kettle 4.
In stills for air blowing 3, oxidation processes are carried out in the presence of oxidant, oxidation product includes the steam generated and oxidation
Liquid afterwards.The liquid after steam, oxidation is passed into desalination respectively by the pipeline between stills for air blowing 3 and desalination evaporating kettle 4
In evaporating kettle 4.
Stills for air blowing 3 can also be equipped with blender.Starting blender can be stirred liquid in kettle.
As shown in Fig. 2, 3 lower part of stills for air blowing is equipped with the medicament input port 13 for adding oxidant.Pass through medicament input port
Oxidant such as concentrated nitric acid can be added in stills for air blowing, to carry out oxidation processes in stills for air blowing in the presence of oxidant.
Carbonization kettle 2, stills for air blowing 3 or desalination evaporating kettle 4 can be equipped with heating device.
Specifically, the temperature of carbonization kettle 2 can be 180-260 DEG C；Temperature in stills for air blowing 3 can be 180-220 DEG C；It is de-
Temperature in salt evaporating kettle 4 can be to be heated to 175-180 DEG C.
Further, the temperature of the temperature > desalination evaporating kettle 4 of the temperature > stills for air blowing 3 of carbonization kettle 2.In hot conditions
Under, the organic matter complete oxidation in waste liquid can remove by atomization+concentrated sulfuric acid dehydration carbonization+oxidizing, while there is no give birth to
The problem of changing salinity tolerance level in processing method, has good removal effect to salinity.
In order to make the temperature in each kettle maintain above-mentioned temperature value, carbonization kettle 2, stills for air blowing 3 or desalination evaporating kettle 4 may be used also
To be equipped with attemperator.
In the heat treatment system of the utility model embodiment, heating device or attemperator can be located at carbonization kettle 2, oxygen
Change the outside of kettle 3 or each kettle of desalination evaporating kettle 4.Heating device can be electric heating.Attemperator can be to be located at outside kettle wall
Collet.
The carbonization kettle 2 of the utility model embodiment, stills for air blowing 3, desalination evaporating kettle 4 can be the high temperature of resistance to 300 DEG C of high temperature
Reaction kettle.Compared with not only needing high temperature but also needing the reaction kettle of high pressure, be conducive to that there is higher processing capacity, small investment, fortune
Row expense is low.
As shown in Fig. 2, pretreatment kettle 1 can also be connected with heat exchanger 5.Heat exchanger 5 is connected to before pretreatment kettle 1, and
It is fluidly connected with pretreatment kettle 1.In heat exchanger 5, high organic waste liquid with high salt is preheated.And the waste liquid after preheating is led to
Piping is supplied to pretreatment kettle 1, carries out atomization process in pretreatment kettle.It pre-processes 1 top of kettle and is equipped with waste liquid entrance, preheating
Waste liquid afterwards flows into pretreatment kettle 1 by waste liquid entrance.
Heat exchanger 5 can also be connected to after desalination evaporating kettle 4, utilize steam in desalination evaporating kettle 4 and to be processed
The high organic waste liquid of high temperature exchanges heat, and recovery waste heat preheats waste liquid, energy saving.As shown in Fig. 2, after preheating
Waste liquid is transported in pretreatment kettle 1 by waste liquid delivery pipe 10.
Fixed gas absorption tower 6 is can connect after heat exchanger 5.In steam after heat exchange, it can partially be condensed into water droplet
Discharge, remaining on-condensible gas are passed into fixed gas absorption tower 6, after fixed gas absorption tower absorbs, reach discharge standard
After discharge.Processing up to standard has been carried out to tail gas, will not generation environment pollution the problems such as.
Heat exchanger 5 can be pipe heat exchanger.It is specifically as follows corrosion-resisting tubular heat exchanger.It can be useless with high organic matter with high salt
Liquid walks tube side, and steam walks shell side, completes the heat exchange between high-temperature steam and waste liquid to be processed, and waste liquid to be processed realizes preheating,
High-temperature steam is condensed as condensate liquid simultaneously.
Carbonization kettle 2, stills for air blowing 3 can also be connected with heat exchanger 5.The steam generated in carbonization kettle 2, stills for air blowing 3 is also led to
Enter into heat exchanger, waste liquid is preheated.
Referring to Fig. 2, the top of carbonization kettle 2 is connect with the upper flow of stills for air blowing 3, and the steam in carbonization kettle 2 is passed into oxygen
Change kettle 3.The top of stills for air blowing 3 is connect with the upper flow of desalination evaporating kettle 4, and the steam in stills for air blowing 3 is passed into desalination and is steamed
Send out kettle 4.The top of desalination evaporating kettle 4 is fluidly connected with heat exchanger 5, and the steam in desalination evaporating kettle 4 is passed into heat exchanger 5,
It exchanges heat with waste liquid.It is mainly water vapour in steam, it is also possible to containing a certain number of organic matters, pass through carbonization after atomization
+ oxidation processes are efficiently removed.
It is connected after desalination evaporating kettle 4 with the housing inlet port of heat exchanger 5, the housing outlets and fixed gas of heat exchanger 5 absorb
Tower 6 is connected.
Referring to Fig. 2, circulating fan 11 is equipped between desalination evaporating kettle 4 and heat exchanger 5.The steaming in Fu 4 is evaporated into desalination
Vapour is quantitatively transported in corrosion-resistance heat exchanger 5 by circulating fan 11.
It can also be connected with separator 7 after desalination evaporating kettle 4, separate salt and the concentrated sulfuric acid in separator 7.Desalination is steamed
It sends out in kettle, after desalination evaporation process, salt is precipitated to the bottom of desalination evaporating kettle, and salt does not dissolve in the concentrated sulfuric acid, can be with dense sulphur
Acid is discharged from desalination evaporating kettle together.As shown in Fig. 2, the bottom of desalination evaporating kettle 4 is by the concentrated sulfuric acid-salt delivery pipe 12 and divides
Top from device 7 is connected.The mixture of salt and the concentrated sulfuric acid leaves desalination evaporating kettle 4 by the concentrated sulfuric acid-salt delivery pipe 12, into point
From device 7.
It is connected with concentrated sulfuric acid recycling can 8 after separator 7, recycles the concentrated sulfuric acid after separating with salt.Salt does not dissolve in dense sulphur
Acid can be separated salinity with the concentrated sulfuric acid by centrifugation.And then the concentrated sulfuric acid can be effectively recycled, the concentrated sulfuric acid after the recovery is recyclable
It uses, increases economic efficiency.The bottom of separator 7 is connected with the top of concentrated sulfuric acid recycling can 8.
It is connected via concentrated sulfuric acid recovery tube 9 with carbonization kettle 2 after concentrated sulfuric acid recycling can 8.The concentrated sulfuric acid after the recovery is returned
It is recycled into carbonization kettle 2, carries out carbonization treatment as dehydration carbonization medium.As shown in Fig. 2, concentrated sulfuric acid recovery tube 9 connects
To the bottom side of concentrated sulfuric acid recycling can 8.
Referring to Fig. 2,3 lower part of stills for air blowing is equipped with the medicament input port 13 for adding oxidant.Pass through medicament input port 13
Oxidant is passed through into stills for air blowing 3.
The thermochemical treatment system of high organic waste liquid with high salt provided by the embodiment of the utility model, as shown in Fig. 2, work
When, the waste liquid of high organic matter with high salt is passed through in pretreatment kettle 1 first, starts ultrasonoscope and blender, by waste liquid uniform-mist
It is passed into after change in carbonization kettle 2, starting blender and external heating system, heating system maintains the temperature in reaction kettle
230 DEG C, waste liquid can thoroughly be carbonized in a kettle, and the liquid after carbonization and the vapor being evaporated are each led into oxidation
In Fu 3, starting blender and external heating system, heating system makes the temperature of reaction kettle maintain 190 DEG C, in medicament input port
13 are added oxidant, and micro- carbon particle that organic matter remaining in liquid and organics dehydration generate is carried out oxidation by oxidant
It removes, the liquid after oxidation and the vapor evaporated is each led into desalination evaporation Fu 4, motor and external heating system are started
System, heating system make the temperature in reaction kettle maintain 175~180 DEG C or so, and desalination is evaporated to the vapor evaporated in Fu 4
It is transported in corrosion-resistance heat exchanger 5 by the way that circulating fan 11 is quantitative, waste liquid inflow corrosion-resistance heat exchanger 5, recovery section thermal energy,
It is passed into pretreatment kettle 1 by waste liquid delivery pipe 10 again later, the part fixed gas being discharged from corrosion-resistance heat exchanger 5 is passed through
Into fixed gas absorption tower 6, qualified discharge after absorption；In desalination evaporation Fu 4 salt that precipitates and the part concentrated sulfuric acid by the concentrated sulfuric acid,
Salt delivery pipe 12 is passed into separator 7, the concentrated sulfuric acid after separation is passed into concentrated sulfuric acid recycling can 8, salt enters centrifuge
Depickling afterwards is stored into salt bath, and the acid of abjection is made back in carbonization kettle 2 and uses；The concentrated sulfuric acid recycled in desalination evaporation Fu 4 is logical
Concentrated sulfuric acid return pipe 9 is crossed to flow back into carbonization kettle 2.
The thermochemical treatment system of high organic waste liquid with high salt described in the utility model embodiment, specifically includes that pretreatment
It is kettle, carbonization kettle, oxidation Fu, desalination evaporation Fu, corrosion-resistance heat exchanger, fixed gas absorption tower, separator, concentrated sulfuric acid recycling can, dense
Sulfuric acid return pipe, circulating fan.Uniform atomizing is carried out first with the principle of ultrasonic vibration, later with the concentrated sulfuric acid in carbonization kettle
As dehydration mediators, it is carbonized to the organic matter in the waste liquid after uniform atomizing in pretreatment kettle, adds in oxidation Fu later
Enter oxidant, the micro- carbon particle generated to remaining organic matter and organics dehydration in the liquid after being carbonized in carbonization kettle carries out
Oxidation removal；Liquid after oxidation is passed into desalination evaporating kettle, the salt after dehydration by evaporation passes through separator separation+centrifugation
After store, the concentrated sulfuric acid obtained after dehydration by evaporation flows back into carbonization organic matter in carbonization kettle again, and the gas that is evaporated passes through
Corrosion-resistance heat exchanger heat exchange, the absorption of fixed gas absorption tower are discharged after reaching discharge standard；The condensate liquid use of heat exchanger is without place
The waste liquid of reason, the waste liquid after heat exchanger heats up are passed into pretreatment kettle by pipeline.Described in the utility model embodiment
The thermochemical treatment system of high organic waste liquid with high salt is passed sequentially through atomization, carbonization, is carbonized under the high temperature conditions using the concentrated sulfuric acid
+ oxidizing, the organic matter complete oxidation in waste liquid can be removed, while can also preferably recycle the concentrated sulfuric acid, be followed
Ring utilizes, while there is no the problem of salinity tolerance level, having good removal effect to salinity in biochemical processing method, in addition,
Waste liquid is preheated while being condensed to the gas evaporated, has saved energy consumption.It can be by high organic contamination with high salt
Organic matter complete oxidation removal in object waste liquid, completely removes the basic organic matter in the water after evaporative condenser, to salinity
There is good removal effect, do not block, not polluting device, processing up to standard has been carried out to tail gas, has not generated secondary pollution, simultaneously also
The energy reuse concentrated sulfuric acid, has significant economic benefit, environmental benefit and social benefit.
In the present specification, particular features, structures, materials, or characteristics described can be real in any one or more
Applying can be combined in any suitable manner in example or example.
Hereafter with specific embodiment the high organic waste liquid with high salt described in the utility model embodiment thermochemical treatment
System is further elaborated on.
Embodiment 1
As shown in Fig. 2, being passed through the waste liquid of high organic matter with high salt in pretreatment kettle 1 first, start ultrasonoscope and stirring
Device will be passed into carbonization kettle 2 after waste liquid uniform atomizing, and starting blender and external heating system, heating system makes reaction kettle
Interior temperature maintains 230 DEG C, and waste liquid can thoroughly be carbonized in a kettle, by the liquid after carbonization and the vapor being evaporated
It each leads into oxidation Fu 3, starting blender and external heating system, heating system makes the temperature of reaction kettle maintain 190
DEG C, oxidant is added in medicament input port 13, oxidant generates organic matter remaining in liquid and organics dehydration micro-
Carbon particle carries out oxidation removal, the liquid after oxidation and the vapor evaporated is each led into desalination evaporation Fu 4, starting
Motor and external heating system, heating system make the temperature in reaction kettle maintain 180 DEG C or so, and desalination is evaporated in Fu 4 and is steamed
The vapor of sending is transported in corrosion-resistance heat exchanger 5 by the way that circulating fan 11 is quantitative, and waste liquid flows into corrosion-resistance heat exchanger 5,
Recovery section thermal energy is passed into pretreatment kettle 1 again by waste liquid delivery pipe 10 later, is discharged from corrosion-resistance heat exchanger 5
Part fixed gas is passed into fixed gas absorption tower 6, qualified discharge after absorption；The salt and part precipitated in desalination evaporation Fu 4 is dense
Sulfuric acid is passed into separator 7 by the concentrated sulfuric acid, salt delivery pipe 12, and the concentrated sulfuric acid after separation is passed into concentrated sulfuric acid recycling can 8
In, salt enters depickling after centrifuge, stores into salt bath, the acid of abjection is made back in carbonization kettle 2 and uses；Fu 4 is evaporated in desalination
The concentrated sulfuric acid of middle recycling is flowed back into carbonization kettle 2 by concentrated sulfuric acid return pipe 9.
COD value and salt content are all made of National Standard Method and are measured.High organic waste liquid with high salt before processing, salt content
11%, 21.3 ten thousand mg/L of COD value；Treated waste liquid, salt content 0%, COD value 174mg/L.
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 not departing from the utility model
Principle and objective in the case where above-described embodiment can be changed in the scope of the utility model, modify, replace and
Modification.
Claims (11)
1. a kind of thermochemical treatment system of high organic waste liquid with high salt, which is characterized in that the thermochemical treatment system includes:
For carrying out the pretreatment unit of atomization process；
For taking the concentrated sulfuric acid as the carbonation unit of dehydration carbonization medium progress carbonization treatment, the carbonation unit is connected to described pre-
It is fluidly connected after processing unit and with the pretreatment unit；
For carrying out the oxidation unit of oxidation processes in the presence of oxidant, the oxidation unit is connected to the carbonation unit
It fluidly connects later and with the carbonation unit；
For carrying out the desalination evaporation element of desalination evaporation process, the desalination evaporation element is connected to after the oxidation unit
And it is fluidly connected with the oxidation unit.
2. thermochemical treatment system according to claim 1, which is characterized in that the pretreatment unit is pretreatment kettle,
Blender and ultrasonic wave high frequency oscillator are equipped in the pretreatment kettle；
The carbonation unit is carbonization kettle, and blender is equipped in the carbonization kettle, and outside is equipped with heating device；
The oxidation unit is stills for air blowing, and blender is equipped in the stills for air blowing, and outside is equipped with heating device；
The desalination evaporation element is desalination evaporating kettle, and the outside of the desalination evaporating kettle is equipped with heating device.
3. thermochemical treatment system according to claim 2, which is characterized in that the stills for air blowing lower part is equipped with for adding
The medicament input port of oxidant.
4. thermochemical treatment system according to claim 2, which is characterized in that described to fluidly connect as pipeline connection.
5. thermochemical treatment system according to claim 1-4, which is characterized in that the thermochemical treatment system
It further include the separator for separating salt and the concentrated sulfuric acid, the separator is connected to after the desalination evaporation element simultaneously
It is fluidly connected with the desalination evaporation element；Concentrated sulfuric acid recycling can, recycling and salinity are connected with after separator separation
The concentrated sulfuric acid from after.
6. thermochemical treatment system according to claim 5, which is characterized in that via dense after the concentrated sulfuric acid recycling can
Retrieval of sulfuric acid pipe is connected with the carbonation unit.
7. thermochemical treatment system according to claim 5, which is characterized in that the thermochemical treatment system further includes changing
Hot device fluidly connects before the heat exchanger is connected to the pretreatment unit and with the pretreatment unit, for that will exchange heat
Treated, and waste liquid is supplied to the pretreatment unit.
8. thermochemical treatment system according to claim 7, which is characterized in that the heat exchanger is corrosion-resisting tubular heat exchange
Device is connected after the desalination evaporation element with the housing inlet port of the heat exchanger, the housing outlets of the heat exchanger with do not coagulate
Aspiration tower is connected.
9. thermochemical treatment system according to claim 5, which is characterized in that the bottom of the desalination evaporation element and institute
State the Top fluidic connection of separator.
10. thermochemical treatment system according to claim 9, which is characterized in that the top of the pretreatment unit and institute
State the lower flow connection of carbonation unit；The top of the carbonation unit is connect with the upper flow of the oxidation unit, described
The bottom of carbonation unit is connect with the lower flow of the oxidation unit；The top of the oxidation unit and desalination evaporation are single
The upper flow connection of member, the top of the desalination evaporation element and the housing inlet port of the heat exchanger fluidly connect.
11. thermochemical treatment system according to claim 2, which is characterized in that the blender is dasher, if
There is multiple impellers leaf.
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| CN201820734351.9U CN208532510U (en) | 2018-05-17 | 2018-05-17 | The thermochemical treatment system of high organic waste liquid with high salt |
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| CN201820734351.9U CN208532510U (en) | 2018-05-17 | 2018-05-17 | The thermochemical treatment system of high organic waste liquid with high salt |
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