CN106044904B - A kind of thermal activation treatment device and method of organic wastewater with high concentration - Google Patents
A kind of thermal activation treatment device and method of organic wastewater with high concentration Download PDFInfo
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- CN106044904B CN106044904B CN201610644305.5A CN201610644305A CN106044904B CN 106044904 B CN106044904 B CN 106044904B CN 201610644305 A CN201610644305 A CN 201610644305A CN 106044904 B CN106044904 B CN 106044904B
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/025—Thermal hydrolysis
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
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Abstract
The present invention relates to a kind of thermal activation treatment device and method of organic wastewater with high concentration, the equipment includes: horizontally disposed pedestal, dnockout pumps, preheating cooler and the pyrohydrolysis tank being set on the base, and the control unit for controlling each section, jet heater is equipped between preheating cooler and pyrohydrolysis tank；Spiral channel there are two being set in the inside of preheating cooler, that is first passage and second channel, the bottom of first passage is connected with the discharge end of dnockout pumps, the top of first passage is connected with the feed end of jet heater, the feed end of second channel is connected by hydrolysis expects pipe with the discharge port of pyrohydrolysis tank top, and the discharge end of second channel is connected with outer discharge pipe.The present invention can substantially improve the anaerobic digestion of hc effluent, improve digestive efficiency, increase methane production, while can also kill the pathogen in sludge, improve the conversion ratio of organic matter during subsequent anaerobic digestion.
Description
Technical field
The present invention relates to a kind of thermal activation treatment equipment and thermal activation treatment method, specifically a kind of highly concentrated organic waste
The thermal activation treatment device and method of water.
Background technique
Containing a large amount of organic pollutant, residual bacterium, nutrients in the useless bacteria residue liquid of fermentation industry and chemical industry waste water
Matter and some larger molecular organics for being difficult to be decomposed, if the waste water containing highly concentrated organic matter is without processing or only by simple
Sedimentation is directly entered anaerobic pond, and the above-mentioned substance in useless bacteria residue or wastewater from chemical industry can cause damages to anaerobic bacteria and then extend anaerobism
The time of processing influences the effect of Anaerobic Treatment, increases the difficulty of subsequent biochemical processing.Therefore, it before entering anaerobic pond, needs
Waste water containing highly concentrated organic matter is handled.
Summary of the invention
An object of the present invention is just to provide a kind of thermal activation treatment equipment of organic wastewater with high concentration, to solve directly to
Hc effluent carries out handling the problem that the time is long, poor processing effect and processing difficulty are big when Anaerobic Treatment.
The second object of the present invention is just to provide a kind of thermal activation treatment method of organic wastewater with high concentration, highly concentrated has to improve
The anaerobic digestion performance of machine waste water improves its digestive efficiency, accelerates the process of subsequent treatment process.
An object of the present invention is achieved in that a kind of thermal activation treatment equipment of organic wastewater with high concentration, includes:
Dnockout pumps, preheating cooler and pyrohydrolysis tank on the base is arranged in horizontally disposed pedestal, and each for controlling
Partial control unit is equipped with jet heater between the preheating cooler and pyrohydrolysis tank, heats in the injection
Device is equipped with jet chimney, and steam valve is equipped on the jet chimney；
The feed end of the dnockout pumps is provided with three pipelines, wherein the first via is connected with hc effluent storage tank, the
Two tunnels are connected with catalyst storage tank, and third road is connected with purge tank, in the discharge end of the dnockout pumps and described highly concentrated useless
It is equipped with return pipe between the top of water storage tank, return valve is equipped on the return pipe；
Spiral channel, respectively first passage and second channel there are two being set in the inside of the preheating cooler；
The bottom of the first passage is connected by pipeline with the discharge end of the dnockout pumps, the top of the first passage
It is connected by pipeline with the feed end of the jet heater, the discharge end of the jet heater passes through high temperature expects pipe and institute
The feed inlet for stating pyrohydrolysis pot bottom is connected, in the high temperature expects pipe be equipped with triple valve two, the import of triple valve two with
The jet heater is connected, and the first outlet of triple valve two is connected with the feed inlet of the pyrohydrolysis pot bottom；
The feed end of the second channel is connected by hydrolysis expects pipe with the discharge port of the pyrohydrolysis tank top,
The hydrolysis expects pipe is equipped with triple valve one, and the first import of triple valve one is connected with the discharge port of the pyrohydrolysis tank top
It is logical, the outlet of triple valve one and it is connected at the top of the second channel；Triple valve is equipped in the discharge end of the second channel
Three, the import of triple valve three is connected with the bottom of second channel, and the first outlet of triple valve three is connected with outer discharge pipe, and three
The second outlet of port valve three at the top of pipeline and the purge tank by being connected；
Connecting tube is provided between the second import of the triple valve one and the second outlet of the triple valve two.
In present device, blow valve and blowdown valve are equipped on the first passage and the second channel.
In present device, it is provided with ladder on the outside of the tank body of the pyrohydrolysis tank, in the pyrohydrolysis tank
Top is equipped with inspection platform, and the jet heater is located at the top of the inspection platform.
In present device, the dnockout pumps are set as two, and two dnockout pumps are connected in parallel.
Heat-activated device of the invention can by the microorganism wadding body in organic wastewater with high concentration disintegrate, microbial cell breakage,
To make the organic substance (such as protein, fat, carbohydrate) in cell release, and further by these substances
Hydrolysis, the intermediate product hydrolyzed are more suitable for the matrix of microorganism growth, as a result, become its physicochemical properties
Change, substantially improve its anaerobic digestion performance, and its digestive efficiency can be improved, increase methane production, accelerates subsequent treatment process
Process, and greatly reduce the yield of waste residue, alleviate processing pressure and processing cost.Present device can also kill useless
Pathogen in water improves the conversion ratio of organic matter during subsequent anaerobic digestion.
Device structure of the invention is ingenious in design, and production is accurate, and heat utilization rate is high, equipment inner structure without dead angle, no
Material stock is, it can be achieved that on-line cleaning, and non-scaling, resistance is small, and high degree of automation is, it can be achieved that continuous in unwatched situation
Operating.
In addition, equipment of the invention uses Integration Design, and machine debugging before dispatching from the factory, whole Transporting, in use, user is only
It needs for the corresponding interface to connect with respective line, greatly reduces the field engineering amount of user.
The second object of the present invention is to what is be achieved: a kind of thermal activation treatment method of organic wastewater with high concentration, including with
Lower step:
A, the thermal activation treatment equipment of a set of organic wastewater with high concentration as described above is set；
B, dnockout pumps and hc effluent storage tank, catalyst storage tank are respectively turned on, and return valve is opened to maximum, then will
Steam valve on jet heater is opened to maximum, then the import of triple valve two is connected to first outlet, and the of triple valve one
The import of one import and outlet, triple valve three is connected to first outlet, makes hc effluent storage tank, dnockout pumps, preheating cooling
The first passage of device, jet heater, pyrohydrolysis tank, preheating cooler second channel and outer discharge pipe between the company of being formed
Logical feed liquid treatment channel；
C, dnockout pumps are opened, the first passage through preheating cooler enters jet heater after feed liquid and catalyst mixing
In, be compressed into high pressure saturated water from the steam that jet chimney enters in jet heater at this time, and with the feed liquid come in and urge
The mixing of agent moment makes its heating, the feed liquid and catalyst after heating through high temperature expects pipe from the feed inlet of pyrohydrolysis pot bottom into
Enter in tank, control unit automatically adjusts the reflux valve opening of dnockout pumps according to the temperature of charge in jet heater exit；
D, as the material entered in pyrohydrolysis tank gradually increases, liquid level is gradually increasing, in uphill process, in material
Microorganism wadding body gradually disintegrate, microbial cell is gradually crushed, the organic substance in cell gradually release and further
It hydrolyzes, the pathogen in material is also gradually destroyed；After feed liquid is full of entire highly pressured hydrolysis tank, the material at top is risen to
Complete hydrolysis, and be discharged from the discharge port of pyrohydrolysis tank top；
E, the hydrolysis feed liquid being discharged from the discharge port of pyrohydrolysis tank top enters preheating cooler by hydrolyzing expects pipe
Second channel flows from above to below in second pipe, and not with the low temperature that is just flowing from bottom to top in first pipe at this time
It hydrolyzes feed liquid and heat exchange occurs, transfer heat to low temperature and do not hydrolyze feed liquid, preheated, and itself then cooling down, cooling
Hydrolysis feed liquid afterwards is discharged by outer discharge pipe；Hereafter, pyrohydrolysis tank is in canful state, and material is constantly from tank base
It into tank, is discharged after being hydrolyzed in tank from top of the tank, whole system enters normal operating conditions；
F, automatic control screen is clicked, system is switched into " automatic " state, at this point, system is in the state of complete automatic control, by
Control unit according to the variation of the temperature and pressure of material at each point, automatic adjustment steam input, feed liquid input and catalyst into
Amount；
G, after all feed liquids have been handled, system is switched to " cleaning " state, at this point, dnockout pumps by steam off valve
Pipeline between pipeline and dnockout pumps between hc effluent storage tank and catalyst storage tank is automatically closed, dnockout pumps and purge tank
Between pipeline turn on automatically, meanwhile, triple valve one, triple valve two and triple valve three distinguish switching direction, i.e. triple valve one
The import of second import and outlet, triple valve two is connected to second outlet, and the import of triple valve three is connected to second outlet,
Make the bottom of purge tank, dnockout pumps, the first passage of preheating cooler, jet heater, connecting tube, preheating cooler second
The cleaning liquid circulation flow passage of connection is formed between channel and the top of purge tank, the cleaning solution in purge tank is through dnockout pumps
Followed by the second pipe of the first pipe of preheating cooler, jet heater and preheating cooler, cleaning is finally passed back into
It in tank, so recycles, until cleaning up；
H, after cleaning, dnockout pumps are closed, open blow valve and blowdown valve, cleaning solution remaining in system is emptied.
In the step c of the method for the present invention, feed liquid is heated to 150 ~ 180 DEG C after entering jet heater.
In the step d of the method for the present invention, residence time of the material in pyrohydrolysis tank is 30min or more.
In the step e of the method for the present invention, feed liquid is not hydrolyzed and is preheated in the first passage of preheating cooler
130 DEG C or more, hydrolysis feed liquid is down to 40 ~ 50 DEG C by cooling in the second channel of preheating cooler.
The method of the present invention can make the microorganism wadding body in organic wastewater with high concentration disintegrate, and cell combination water is released, is made
Wherein the dewatering of sludge is improved；The method of the present invention can substantially improve the anaerobic digestion of organic wastewater with high concentration, improve
Digestive efficiency increases methane production；The method of the present invention can also kill the pathogen in waste water, during improving subsequent anaerobic digestion
The conversion ratio of organic matter.
In addition, the heat utilization rate of the method for the present invention is high, processing cost is saved, high degree of automation has been liberated artificial
Labour, it is easy to promote and utilize.
Detailed description of the invention
Fig. 1 is system structure diagram of the invention.
Fig. 2 is the assembling structure of pedestal of the invention, dnockout pumps, preheating cooler, pyrohydrolysis tank and jet heater
Schematic diagram.
In figure: 1, pedestal, 2, dnockout pumps, 3, preheating cooler, 4, pyrohydrolysis tank, 5, jet heater, 6, highly concentrated useless
Water storage tank, 7, purge tank, 8, control unit, 9, first passage, 10, second channel, 11, triple valve one, 12, triple valve two, 13,
Triple valve three, 14, ladder, 15, inspection platform, 16, catalyst storage tank.
Specific embodiment
Embodiment 1: the thermal activation treatment equipment of organic wastewater with high concentration.
As depicted in figs. 1 and 2, the present invention is mainly by pedestal 1, dnockout pumps 2, preheating cooler 3, pyrohydrolysis tank 4, injection
The part such as feeder and control unit 8 forms.
As shown in Fig. 2, pedestal 1 is used as supporting body, to other each sections of support, dnockout pumps 2, preheating cooler 3 and height
Warm hydrolytic decomposition pot 4 etc. is all mounted on pedestal 1, to make equipment that integrated structure be integrally formed.Equipment machine debugging before factory,
Whole Transporting after appearance, when in use, user only need for the corresponding interface to connect with respective line, can greatly reduce scene
Installing engineering amount.
Dnockout pumps 2 are mounted on pedestal 1, for conveying feed liquid (i.e. organic wastewater with high concentration) and catalyst, or for conveying
Cleaning solution.The feed end of dnockout pumps 2 is provided with three pipelines, wherein the first via is communicated to the bottom of hc effluent storage tank 6,
Second tunnel is communicated to the bottom of catalyst storage tank 16, and third road is communicated to the bottom of purge tank 7.Dnockout pumps 2 discharge end with
It is provided with return pipe between the top of hc effluent storage tank 6, return valve, 8 electricity of return valve and control unit are equipped on return pipe
Connection.Switching between hc effluent storage tank 6, catalyst storage tank 16 and purge tank 7 is also that realization is controlled by control unit 8
's.
Dnockout pumps 2 are set as two, and two dnockout pumps 2 are connected in parallel, one of them is main pump, another is stand-by pump,
When main pump needs to overhaul, stand-by pump is connected, system still can operate normally.
Preheating cooler 3 from the feed liquid of dnockout pumps 2 for will preheat, while by the hydrolyzation material from pyrohydrolysis tank 4
It is cooling.Two spiral channels, respectively first passage 9 and second channel 10 are equipped in preheating cooler 3.First passage 9
Bottom be connected by pipeline with the discharge end of dnockout pumps 2, top is connected by pipeline with the feed end of jet heater 5
It is logical.The top of second channel 10 is connected by hydrolysis expects pipe with the discharge port at 4 top of pyrohydrolysis tank, and bottom is communicated to outlet
On pipeline, triple valve 3 13 is equipped in the discharge end of second channel 10；Triple valve 3 13 includes that an import and two export,
In, the import of triple valve 3 13 is connected with the discharge end of second channel 10, the first outlet of triple valve 3 13 and outer discharge pipe phase
Even, the second outlet of triple valve 3 13 is connected by pipeline with the top of purge tank 7.On first passage 9 and second channel 10
It is equipped with blow valve and blowdown valve, when equipment is out of service, opening blow valve and blowdown valve can will be remaining miscellaneous in channel
Object or cleaning solution etc. empty.
First passage 9 is the pipeline for conveying hc effluent raw material, is called cold burden channel, and second channel 10 is conveying hydrolysis
The pipeline of high temperature feed liquid afterwards is called hot material channel.When carrying out high load wastewater treatment, flowed from bottom to top in first passage 9
Cold burden and second channel 10 in hot material that flows from above to below completes to exchange heat in preheating cooler 3, to reach cold burden quilt
Hot material preheating (feed liquid temperature after preheating is 130 DEG C or so), hot material is cooled down the purpose of (being cooled to 45 DEG C or so) by cold burden, from
And substantially increase the heat utilization rate of system, achieve the purpose that energy conservation, it is water-saving, effectively reduce being processed into for hc effluent
This.
Jet heater 5 is arranged on the pipeline between first passage 9 and pyrohydrolysis tank 4, leads to for that will come from first
The cold burden in road 9 or pre- hot material heat temperature raising (when system just brings into operation, without hot material in second channel, pass through first passage
Feed liquid do not preheat and be directly entered in jet heater, jet heater heating at this time is cold burden；When system enters normally
After working condition, 130 DEG C or so are preheated to after the hot material heat exchange in the feed liquid and second channel in first passage, is sprayed at this time
Heater heating is pre- hot material).Steam inlet is equipped on jet heater 5, steam inlet is connected with jet chimney,
Jet chimney is equipped with steam valve, adjusts the degree of heat to feed liquid by adjusting the input of steam.Steam enters injection
It is compressed into high pressure saturated water after heater 5, high pressure saturated water is mixed with cold burden or pre- hot material moment, and is heated to
150 ~ 180 DEG C, obtained high temperature feed liquid enters in tank from the bottom of pyrohydrolysis tank 4.
Pyrohydrolysis tank 4 be vertical tank body, its bottom be equipped with feed inlet, at the top of it be equipped with discharge port, under into
Upper mode out can guarantee that feed liquid has the sufficient residence time so that it is thoroughly hydrolyzed in tank.
High temperature expects pipe is equipped between the feed inlet of pyrohydrolysis tank 4 and the discharge end of jet heater 5, in high temperature expects pipe
It is equipped with triple valve 2 12；Triple valve 2 12 includes that an import and two export, wherein the import of triple valve 2 12 and high temperature
Expects pipe is connected, and the first outlet of triple valve 2 12 is connected with the feed inlet of 4 bottom of pyrohydrolysis tank.
Hydrolysis expects pipe is equipped between the top of the second channel 10 of the discharge port and preheating cooler 3 of pyrohydrolysis tank 4,
Triple valve 1 is equipped in hydrolysis expects pipe；Triple valve 1 includes two imports and one outlet, wherein triple valve 1
First import is connected with the discharge port at 4 top of pyrohydrolysis tank, and the outlet of triple valve 1 is connected with the top of second channel 10.
Connecting tube is equipped between the second import of triple valve 1 and the second outlet of triple valve 2 12.
As shown in fig. 1, when 1. triple valve 1, triple valve 2 12 and triple valve 3 13 are adjusted to position, injection adds
Hot device 5, pyrohydrolysis tank 4, the second channel 10 of preheating cooler 3 and outlet channel are sequentially connected, and are formed at the feed liquid of connection
Manage channel, the treatment process for hc effluent.When 2. triple valve 1, triple valve 2 12 and triple valve 3 13 are adjusted to position
When, jet heater 5, connecting tube, the second channel 10 of preheating cooler 3 and purge tank 7 are sequentially connected and (have bypassed pyrohydrolysis
Tank 4), form the cleaning solution return flow line of connection, for high load wastewater treatment after whole equipment cleaning process.
It is equipped with longitudinal ladder 14, on the tank wall of pyrohydrolysis tank 4 in order to which each position to tank body carries out
Maintenance；The top of pyrohydrolysis tank 4 is provided with inspection platform 15, in order to be overhauled and safeguarded to top structure, injection
Heater 5 is arranged on the inspection platform 15.
Control unit 8 is for controlling whole equipment, triple valve 1, triple valve 2 12 and triple valve 3 13, with
And return valve, steam valve and other each regulating valves etc. are all controlled by control unit 8, hc effluent storage tank 6, catalyst storage tank
Switching between 16 and cleaning pump is also to be controlled to realize by control unit 8.
Embodiment 2: the thermal activation treatment method of organic wastewater with high concentration.
A, the thermal activation treatment equipment of a set of organic wastewater with high concentration as described in embodiment 1 is set；
B, dnockout pumps 2 and hc effluent storage tank 6, catalyst storage tank 16 are respectively turned on, and return valve is opened to maximum, so
The steam valve on jet heater 5 is opened to maximum afterwards, then the import of triple valve 2 12 is connected to first outlet, triple valve
The import of one 11 the first import and outlet, triple valve 3 13 is connected to first outlet, makes hc effluent storage tank 6, dnockout
Pump 2, the first passage 9 of preheating cooler 3, jet heater 5, pyrohydrolysis tank 4, preheating cooler 3 second channel 10 with
And the feed liquid treatment channel of connection is formed between outer discharge pipe；
C, dnockout pumps 2, the first passage 9 through preheating cooler 3 after hc effluent and catalyst mix in the duct are opened
Into in jet heater 5, it is compressed into high pressure saturated water from the steam that jet chimney enters in jet heater 5 at this time, and
Mixing with the feed liquid moment come in makes feed liquid be warming up to 150 ~ 180 DEG C, and the high temperature feed liquid after heating is through high temperature expects pipe from high-temperature water
The feed inlet of solution 4 bottom of tank enters in tank, and control unit 8 is beaten according to the automatic adjustment of the feed liquid temperature in 5 exit of jet heater
The reflux valve opening of material pump 2；
D, over time, the liquid level in pyrohydrolysis tank 4 is gradually increasing, and feed liquid rises to tank body from tank base
It is residence time of the feed liquid in pyrohydrolysis tank 4 the time required to top, residence time control is best in 30min or more, energy
Enough guarantee that feed liquid is fully hydrolyzed；In uphill process, the microorganism wadding body in feed liquid gradually disintegrates, and microbial cell is gradually broken
It is broken, and organic substance in cell (such as: fat, protein, carbohydrate etc.) one-step hydrolysis of going forward side by side gradually is released, expect
Pathogen in liquid is also gradually destroyed；Rise to the feed liquid complete hydrolysis at top, the feed liquid of complete hydrolysis is from high-temperature water
Solve the discharge port discharge of tank top；
E, enter preheating cooler 3 by hydrolyzing expects pipe from the hydrolysis feed liquid that the discharge port at 4 top of pyrohydrolysis tank is discharged
Second channel 10, and flow from above to below in the second channel, and with just flowed from bottom to top in first pipe at this time
Low temperature does not hydrolyze feed liquid and heat exchange occurs, and transfers heat to low temperature and does not hydrolyze feed liquid, is preheated, and it is cold itself then to cool down
But, the hydrolysis feed liquid after cooling is discharged by outer discharge pipe；Hereafter, highly pressured hydrolysis tank 4 keep full irrigation state, feed liquid constantly from
Tank base enters in tank, and is discharged from top of the tank, and whole system enters normal operating conditions；
F, automatic control screen is clicked, system is switched into " automatic " state, at this point, system is in the state of complete automatic control, it may be assumed that
It is pumped into the first passage 9 of preheating cooler 3 after hc effluent and catalyst mixing by dnockout pumps 2, control unit is according to highly concentrated
The dosage of the inlet amount automatic adjustment catalyst of waste water, feed liquid exchange heat in first passage 9 with the hot material in second channel 10, quilt
130 DEG C or more are preheated to, then is heated to 150 ~ 180 DEG C through jet heater 5, subsequently into being maintained in pyrohydrolysis tank 4
30min or more is fully hydrolyzed hc effluent, and the feed liquid after hydrolysis enters the second channel of preheating cooler 3 from top of the tank
In 10, exchange heat after cooling (being cooled to 45 DEG C or so) with the cold burden in first passage 9, by outer discharge pipe enter conditioning tank or
Anaerobic tower；In entire treatment process, by control unit 8 according to the variation of the temperature and pressure of each point material, automatic adjustment is steamed
Vapour input and hc effluent input；
G, after all high load wastewater treatments are complete, system is switched to " cleaning " state, at this point, beating by steam off valve
Pipeline, dnockout pumps 2 between material pump 2 and hc effluent storage tank 6 and the pipeline between catalyst storage tank 16 are automatically closed, dnockout pumps
Pipeline turn on automatically between 2 and purge tank 7, meanwhile, triple valve 1, triple valve 2 12 and triple valve 3 13 switching side respectively
To i.e. the second import of triple valve 1 and outlet, the import of triple valve 2 12 is connected to second outlet, triple valve 3 13
Import be connected to second outlet, make the bottom of purge tank 7, dnockout pumps 2, the first passage 9 of preheating cooler 3, injection heating
Device 5, connecting tube, the second channel 10 of preheating cooler 3 and purge tank 7 top between form the cleaning liquid recycle stream of connection
Dynamic channel, first pipe through dnockout pumps 2 followed by preheating cooler 3 of cleaning solution in purge tank 7,5 and of jet heater
The second pipe of preheating cooler 3 finally passes back into purge tank 7, so recycles, until cleaning up；
H, after cleaning, dnockout pumps 2 are closed, open blow valve and blowdown valve, cleaning solution remaining in system is emptied.
Claims (8)
1. a kind of thermal activation treatment equipment of organic wastewater with high concentration, characterized in that include: horizontally disposed pedestal, setting exist
Dnockout pumps, preheating cooler and pyrohydrolysis tank on the pedestal, and the control unit for controlling each section, described
It is equipped with jet heater between preheating cooler and pyrohydrolysis tank, jet chimney is equipped on the jet heater, in institute
Jet chimney is stated equipped with steam valve；
The feed end of the dnockout pumps is provided with three pipelines, wherein the first via is connected with hc effluent storage tank, the second tunnel
It is connected with catalyst storage tank, third road is connected with purge tank, stores up in the discharge end of the dnockout pumps and the hc effluent
It is equipped with return pipe between the top of tank, return valve is equipped on the return pipe；
Spiral channel, respectively first passage and second channel there are two being set in the inside of the preheating cooler；
The bottom of the first passage is connected by pipeline with the discharge end of the dnockout pumps, is passed through at the top of the first passage
Pipeline is connected with the feed end of the jet heater, and the discharge end of the jet heater passes through high temperature expects pipe and the height
The feed inlet of warm water solution pot bottom is connected, in the high temperature expects pipe be equipped with triple valve two, the import of triple valve two with it is described
Jet heater is connected, and the first outlet of triple valve two is connected with the feed inlet of the pyrohydrolysis pot bottom；
The feed end of the second channel is connected by hydrolysis expects pipe with the discharge port of the pyrohydrolysis tank top, described
It hydrolyzing expects pipe and is equipped with triple valve one, the first import of triple valve one is connected with the discharge port of the pyrohydrolysis tank top,
Triple valve one outlet and be connected at the top of the second channel；It is equipped with triple valve three in the discharge end of the second channel,
The import of triple valve three is connected with the bottom of second channel, and the first outlet of triple valve three is connected with outer discharge pipe, threeway
The second outlet of valve three at the top of pipeline and the purge tank by being connected；
Connecting tube is provided between the second import of the triple valve one and the second outlet of the triple valve two.
2. the thermal activation treatment equipment of organic wastewater with high concentration according to claim 1, characterized in that in the first passage
Blow valve and blowdown valve are equipped with on the second channel.
3. the thermal activation treatment equipment of organic wastewater with high concentration according to claim 1, characterized in that in the pyrohydrolysis
It is provided with ladder on the outside of the tank body of tank, is equipped with inspection platform at the top of the pyrohydrolysis tank, the jet heater is located at
The top of the inspection platform.
4. the thermal activation treatment equipment of organic wastewater with high concentration according to claim 1, characterized in that the dnockout pumps setting
It is two, two dnockout pumps are connected in parallel.
5. a kind of thermal activation treatment method of organic wastewater with high concentration, characterized in that the following steps are included:
A, the thermal activation treatment equipment of a set of organic wastewater with high concentration described in claim 1 is set；
B, dnockout pumps and hc effluent storage tank, catalyst storage tank are respectively turned on, and return valve is opened to maximum, it then will injection
Steam valve on heater is opened to maximum, then the import of triple valve two is connected to first outlet, triple valve one first into
Mouthful and outlet, the import of triple valve three be connected to first outlet, make hc effluent storage tank, dnockout pumps, preheating cooler
First passage, jet heater, pyrohydrolysis tank, preheating cooler second channel and outer discharge pipe between formed connection
Feed liquid treatment channel；
C, dnockout pumps are opened, the first passage through preheating cooler enters jet heater after hc effluent and catalyst mixing
In, be compressed into high pressure saturated water from the steam that jet chimney enters in jet heater at this time, and with feed liquid moment for coming in
Mixing makes its heating, and the feed liquid after heating enters in tank through high temperature expects pipe from the feed inlet of pyrohydrolysis pot bottom, control unit
The reflux valve opening of dnockout pumps is automatically adjusted according to the feed liquid temperature in jet heater exit；
D, as the feed liquid entered in pyrohydrolysis tank gradually increases, liquid level is gradually increasing, micro- in feed liquid in uphill process
Biological floe gradually disintegrates, and microbial cell is gradually crushed, and the organic substance in cell gradually releases an one-step hydrolysis of going forward side by side,
Pathogen in feed liquid is also gradually destroyed；After feed liquid is full of entire highly pressured hydrolysis tank, the feed liquid at top has been risen to
Complete hydrolysis, and be discharged from the discharge port of pyrohydrolysis tank top；
E, the hydrolysis feed liquid being discharged from the discharge port of pyrohydrolysis tank top enters the second of preheating cooler by hydrolyzing expects pipe
Channel flows from above to below in second pipe, and does not hydrolyze with the low temperature just flowed from bottom to top in first pipe at this time
Heat exchange occurs for feed liquid, transfers heat to low temperature and does not hydrolyze feed liquid, is preheated, and itself then cooling down, after cooling
Hydrolysis feed liquid is discharged by outer discharge pipe；Hereafter, pyrohydrolysis tank is in canful state, and feed liquid constantly enters from tank base
It in tank, is discharged after being hydrolyzed in tank from top of the tank, whole system enters normal operating conditions；
F, automatic control screen is clicked, system is switched into " automatic " state, at this point, system is in the state of complete automatic control, by controlling
Variation of the unit according to the temperature and pressure of feed liquid at each point, automatic adjustment steam input, feed liquid input and catalyst input；
G, after high load wastewater treatment is complete, system is switched to " cleaning " state by steam off valve, at this point, dnockout pumps and height
Pipeline between pipeline and dnockout pumps between density wastewater storage tank and catalyst storage tank is automatically closed, between dnockout pumps and purge tank
Pipeline turn on automatically, meanwhile, triple valve one, triple valve two and triple valve three distinguish switching direction, i.e. the second of triple valve one
The import of import and outlet, triple valve two is connected to second outlet, and the import of triple valve three is connected to second outlet, is made clear
The bottom of cleaning of evaporator, dnockout pumps, the first passage of preheating cooler, jet heater, connecting tube, preheating cooler second channel
And the cleaning liquid circulation flow passage of connection is formed between the top of purge tank, the cleaning solution in purge tank through dnockout pumps successively
The first pipe of preheating cooler, the second pipe of jet heater and preheating cooler are flowed through, is finally passed back into purge tank,
So circulation, until cleaning up；
H, after cleaning, dnockout pumps are closed, open blow valve and blowdown valve, cleaning solution remaining in system is emptied.
6. the thermal activation treatment method of organic wastewater with high concentration according to claim 5, characterized in that in the step c, material
Liquid is heated to 150 ~ 180 DEG C after entering jet heater.
7. the thermal activation treatment method of organic wastewater with high concentration according to claim 5, characterized in that in the step d, material
Residence time of the liquid in pyrohydrolysis tank is 30min or more.
8. the thermal activation treatment method of organic wastewater with high concentration according to claim 5, characterized in that in the step e, not
Hydrolysis feed liquid is preheated to 130 DEG C or more in the first passage of preheating cooler, hydrolyzes feed liquid the second of preheating cooler
40 ~ 50 DEG C are down to by cooling in channel.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101041542A (en) * | 2007-03-05 | 2007-09-26 | 同济大学 | Sludge phase-splitting slaking method of water treatment plant |
| CN102471093A (en) * | 2009-07-13 | 2012-05-23 | 坎比有限公司 | Method and apparatus for thermal hydrolysis and steam explosion of biomass |
| CN102515454A (en) * | 2011-12-22 | 2012-06-27 | 湖北国新天汇能源有限公司 | Device and method for realizing thermal-hydrolysis fermentation treatment in rotation way |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101041542A (en) * | 2007-03-05 | 2007-09-26 | 同济大学 | Sludge phase-splitting slaking method of water treatment plant |
| CN102471093A (en) * | 2009-07-13 | 2012-05-23 | 坎比有限公司 | Method and apparatus for thermal hydrolysis and steam explosion of biomass |
| CN102515454A (en) * | 2011-12-22 | 2012-06-27 | 湖北国新天汇能源有限公司 | Device and method for realizing thermal-hydrolysis fermentation treatment in rotation way |
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