CN209618970U - A kind of reactor of catalytic ozonation waste water - Google Patents
A kind of reactor of catalytic ozonation waste water Download PDFInfo
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- CN209618970U CN209618970U CN201822136781.3U CN201822136781U CN209618970U CN 209618970 U CN209618970 U CN 209618970U CN 201822136781 U CN201822136781 U CN 201822136781U CN 209618970 U CN209618970 U CN 209618970U
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Abstract
The utility model discloses a kind of reactors of catalytic ozonation waste water, comprising: reaction chamber, water inlet, water outlet, gas outlet, circulating outlet；Its lower part is divided into jet reaction chamber and tower reaction chamber by partition inside reaction chamber, jet reaction is intracavitary to be provided with the first catalytic bed and injector, the working fluid import of circulating outlet connection injector, gas outlet is inhaled into fluid inlet by gas circulation pipe connection injector, water inlet is set to the bottom of jet reaction chamber, column plate and the second catalytic bed are provided in tower reaction chamber, water outlet is set to the bottom of tower reaction chamber, air inlet is respectively communicated with the gentle circulation pipe in lower section of column plate, and gas circulation pipe connects offgas outlet.The reactor has many advantages, such as that mass-transfer efficiency is high, reaction rate is fast, ozone utilization rate is high, COD removal rate is high.
Description
Technical field
The utility model belongs to field of waste water treatment, more particularly to a kind of catalytic ozonation Sewage advanced treatment
Reactor.
Background technique
Recently as the increasingly strict of sewage drainage standard, the Sewage advanced treatment technology of high efficiency, low cost is developed more
Seem important.The hot spot that high-level oxidation technology is this year to study, catalytic ozonation can produce with high oxidation activity
Hydroxyl radical free radical, the various hardly degraded organic substance pollutants of non-selective removal, therefore widely studied and be applied to waste water
Advanced treating.Catalytic ozonation technology is divided into homogeneous catalysis and heterogeneous catalysis by used catalyst.Homogeneous catalysis, catalyst
It is difficult to recycle, metal ion is easily introduced secondary pollution, while causing the waste of resource, limits its practical application.It is heterogeneous to urge
The catalyst of change technology, is easily recycled, and gas-liquid-solid phase reaction is influenced by mass transfer, weakens the oxidation effectiveness of ozone.Ozone is urged
Oxidation device is to influence wastewater treatment to answer one of key factor of effect.
Currently, in practical engineering application be mostly heterogeneous catalytic oxidation, ozone, waste water, catalyst three-phase between biography
Matter always affects ozone oxidation effect, while restricting the development of catalytic ozonation technology.Research and development function admirable ozone is urged
Oxidation device is very urgent.The ozone catalytic reactor of function admirable can strengthen mass transfer between gas-liquid-solid three-phase, improve ozone
Utilization rate avoids heterogeneous catalytic oxidation shortcoming, widens the application range of catalytic ozonation technology.
Utility model content
The utility model aims to solve at least one of the technical problems existing in the prior art.For this purpose, the utility model mentions
Mass transfer, the catalytic ozonation waste water reaction that reaction rate is fast, ozone utilization rate is high between a kind of gas-liquid-solid three-phase with reinforcing out
Device.
To achieve the above object, the technical solution adopted in the utility model are as follows:
A kind of reactor of catalytic ozonation waste water, comprising: reaction chamber and be set on the wall of the reaction chamber into
The mouth of a river, water outlet, gas outlet and circulating outlet；
The reaction chamber is internally provided with longitudinal partition, at the top of the partition between the top of the reaction chamber there are
Gap, the partition bottom are fixedly connected with the bottom of the reaction chamber, and the lower part of the reaction chamber is divided by the partition
The jet reaction chamber and tower reaction chamber being connected to independently of each other and only by partition upper space,
The jet reaction is intracavitary to be provided with the first catalytic bed and injector, and the circulating outlet is set to described penetrate
The top of reaction chamber is flowed, the circulating outlet connects the work of the injector by the wall that water-circulating pipe passes through the reaction chamber
Make fluid inlet, the outlet of the injector is downward,
The gas outlet is set to the top of the reaction chamber, and the gas outlet passes through the reaction chamber by gas circulation pipe
Wall connect the injector be inhaled into fluid inlet,
The water inlet is set to the bottom of the jet reaction chamber,
Column plate and the second catalytic bed are provided in the tower reaction chamber, the water outlet is set to the tower reaction
The bottom of chamber, air inlet be respectively communicated with by air inlet pipe and air intake branch whole column plates in the tower reaction chamber lower section and
The gas circulation pipe,
The gas circulation pipe connects offgas outlet by tail gas branch pipe.
Further, circulating pump is additionally provided on the water-circulating pipe.
Further, the height of the partition is the 1/2 ~ 4/5 of the reaction chamber height.
Further, side wall 1/3d ~ 2/3d of the vertical center line of the partition apart from the reaction chamber, wherein d is described
The cross-sectional diameter of reaction chamber.That is, the cross section of reaction chamber is separated into 3 parts with one group of parallel lines, wherein parallel lines are distinguished
At 1/3d and at 2/3d, then partition is then set on this group of parallel lines or between this group of parallel lines.
Further, first catalytic bed is provided with 2 ~ 5 layers, wherein 1 ~ 2 layer of lower section for being set to the injector,
Remaining the first catalytic bed is set to the top of the injector.
Further, the cross section of first catalytic bed is identical as the cross section of the jet reaction chamber.
Further, the circulating outlet is set to the top of the injector.
Further, second catalytic bed is set to the downcomer region of the column plate.
Further, the cross section of second catalytic bed is identical as the cross section of the downspout.
Further, the height of second catalytic bed is the 1/3 ~ 3/3 of the downspout height.
Further, the gas flow in the air inlet pipe and the air intake branch is distributed by valve regulated.
Further, the gas flow in the gas circulation pipe and the tail gas branch pipe is distributed by valve regulated.
The method operation of those skilled in the art's routine can be used in the utility model, and waste water is by the water inlet in the process
Mouth enters the bottom of the jet reaction chamber, flows up, and the working fluid of injector is flowed into through circulating outlet, water-circulating pipe
Import forms gas-liquid mixture and sprays downwards after mixing with the ozone from air inlet, the gas-liquid mixture is urged by first
Change bed catalyst reaction, overflows over partition top upwards, it is downward by column plate and the second catalytic bed into tower reaction chamber
While flowing with the further hybrid reaction of ozone from tower reaction chamber bottom, preferably via tower reaction chamber bottom go out
Mouth of a river outflow；The complete gas of unreacted, which is come back in injector by the gas outlet at the top of reaction chamber via gas circulation pipe, to be participated in
Reaction；Tail gas is discharged via offgas outlet.
The beneficial effects of the utility model are as follows: injector can produce microbubble, design in conjunction with special structure, by force
Change mass transfer between gas-liquid-solid three-phase, improve reaction rate, shorten the reaction time, reduces equipment investment；By adjusting outlet valve,
Discharge outlet ozone concentration is controlled, ozone utilization rate is improved；Jet reaction area strengthens reaction rate, and tower reaction zone reduces waste water
Back-mixing.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the reactor of catalytic ozonation waste water described in the utility model.
Fig. 2 is partition location diagram, and wherein partition is set to shadow region.
Fig. 3 is the first catalytic bed distribution schematic diagram.
Wherein, 1 is gas outlet, and 2 be reaction chamber, and 3 be jet reaction chamber, and 4 be circulating outlet, and 5 be partition, and 6 be tower
Reaction chamber, 7 be injector, and 8 be gas circulation pipe, and 9,10,19,17 be valve, and 11 be water inlet, and 12 be air intake branch, and 13 are
Column plate, 14 be water-circulating pipe, and 15 be circulating pump, and 16 be the second catalytic bed, and 18 be water outlet, and 20 be the first catalytic bed.
Specific embodiment
A kind of reactor of catalytic ozonation waste water as shown in Fig. 1 ~ 3, comprising: reaction chamber 2 and be set to described anti-
Answer water inlet 11, water outlet 18, gas outlet 1 and the circulating outlet 4 on the wall of chamber 2；
The reaction chamber 2 is internally provided with longitudinal partition 5, between 5 top of partition and the top of the reaction chamber 2
There are gap, 5 bottom of partition is fixedly connected with the bottom of the reaction chamber 2, and the partition 5 will be under the reaction chamber 2
Part is divided into jet reaction chamber 3 and tower reaction chamber 6 mutually indepedent and be only connected to by 5 upper space of partition,
The first catalytic bed 20 and injector 7 are provided in the jet reaction chamber 3, the circulating outlet 4 is set to
The top of the jet reaction chamber 3, the circulating outlet 4 connect institute by the wall that water-circulating pipe 14 passes through the reaction chamber 2
The working fluid import of injector 7 is stated, the outlet of the injector 7 is downward,
The gas outlet 1 is set to the top of the reaction chamber 2, and the gas outlet 1 is passed through described anti-by gas circulation pipe 8
Answer what the wall of chamber 2 connected the injector 7 to be inhaled into fluid inlet,
The water inlet 11 is set to the bottom of the jet reaction chamber 3,
Column plate 13 and the second catalytic bed 16 are provided in the tower reaction chamber 6, the water outlet 18 is set to described
The bottom of tower reaction chamber 6, air inlet are respectively communicated with the whole in the tower reaction chamber 6 by air inlet pipe and air intake branch 12
The lower section of column plate and the gas circulation pipe 8,
The gas circulation pipe 8 connects offgas outlet by tail gas branch pipe.
Circulating pump 15 is additionally provided on the water-circulating pipe 14.
The height of the partition 5 is the 1/2 ~ 4/5 of 2 height of reaction chamber.
Side wall 1/3d ~ 2/3d of the vertical center line of the partition 5 apart from the reaction chamber 2, wherein d is the reaction chamber 2
Cross-sectional diameter.That is, the cross section of reaction chamber 2 is separated into 3 parts with one group of parallel lines, wherein parallel lines are located at 1/
At 3d and at 2/3d, then partition is then set on this group of parallel lines or between this group of parallel lines.
First catalytic bed 20 is provided with 2 ~ 5 layers, wherein 1 ~ 2 layer of lower section for being set to the injector 7, remaining
First catalytic bed 20 is set to the top of the injector 7.
The cross section of first catalytic bed 20 is identical as the cross section of the jet reaction chamber 3.
The circulating outlet 4 is set to the top of the injector 7.
Second catalytic bed 16 is set to the downcomer region of the column plate 13.
The cross section of second catalytic bed 16 is identical as the cross section of the downspout.
The height of second catalytic bed 16 is the 1/3 ~ 3/3 of the downspout height.
Gas flow in the air inlet pipe and the air intake branch 12 is distributed by valve regulated.
Gas flow in the gas circulation pipe 8 and the tail gas branch pipe is distributed by valve regulated.
Embodiment 1
Using above-mentioned reactor, catalytic ozonation waste water reaction is carried out, waste water enters the jet stream by the water inlet
The bottom of reaction chamber, flows up, through circulating outlet, water-circulating pipe flow into injector working fluid import, with from into
It forms gas-liquid mixture after the ozone mixing of port to spray downwards, the gas-liquid mixture is anti-by the catalysis of the first catalytic bed
Answer, overflow over partition top upwards, into tower reaction chamber, while flowing downward by column plate and the second catalytic bed with
The further hybrid reaction of ozone from tower reaction chamber bottom is preferably flowed out via the water outlet of tower reaction chamber bottom；Not
The gas of fully reacting is come back to via gas circulation pipe by the gas outlet at the top of reaction chamber and participates in reacting in injector；Tail gas warp
It is discharged by offgas outlet.
Ozone can produce microbubble in jet reaction area, strengthen mass transfer between gas-liquid-solid three-phase, improve reaction rate,
Shorten the reaction time, reduces equipment investment.The gas flow distribution of two pipelines is adjusted by valve 17,9, controllable tail gas goes out
Halitosis oxygen concentration improves ozone utilization rate.
Using the waste water of above-mentioned reactor for treatment class containing phenyl ring COD400mg/L, when COD drops to 80mg/L, residence time
No more than 0.75 hour, tail gas foul smell detected that concentration is 1 ~ 5 ppm, handled above-mentioned waste water using common bubbling reactor,
Residence time is usually not less than 1.5 hours, and tail gas ozone detects that concentration is 60 ~ 120ppm, and comparison discovery is handled same useless
Water, using above-mentioned reactor, shorter residence time at least 1/2, equipment volume reduces at least 1/2, and the usage amount of catalyst is reduced
At least 1/2, equipment investment cost reduces nearly 1/2, and ozone utilization rate greatly improves.
Claims (10)
1. a kind of reactor of catalytic ozonation waste water characterized by comprising reaction chamber and be set to the reaction chamber
Water inlet, water outlet, gas outlet and circulating outlet on wall；
The reaction chamber is internally provided with longitudinal partition, and there are skies between the partition top and the top of the reaction chamber
Gap, the partition bottom are fixedly connected with the bottom of the reaction chamber, and the lower part of the reaction chamber is divided into phase by the partition
Jet reaction chamber and tower reaction chamber mutually independent and be only connected to by partition upper space,
The jet reaction is intracavitary to be provided with the first catalytic bed and injector, and it is anti-that the circulating outlet is set to the jet stream
The top of chamber is answered, the circulating outlet connects the workflow of the injector by the wall that water-circulating pipe passes through the reaction chamber
The outlet of body import, the injector is downward,
The gas outlet is set to the top of the reaction chamber, and the gas outlet passes through the wall of the reaction chamber by gas circulation pipe
Connect the injector is inhaled into fluid inlet,
The water inlet is set to the bottom of the jet reaction chamber,
Column plate and the second catalytic bed are provided in the tower reaction chamber, the water outlet is set to the tower reaction chamber
Bottom, air inlet are respectively communicated with the lower section of whole column plates in the tower reaction chamber and described by air inlet pipe and air intake branch
Gas circulation pipe,
The gas circulation pipe connects offgas outlet by tail gas branch pipe.
2. the reactor of catalytic ozonation waste water according to claim 1, which is characterized in that on the water-circulating pipe also
It is provided with circulating pump.
3. the reactor of catalytic ozonation waste water according to claim 1, which is characterized in that the height of the partition is
The 1/2 ~ 4/5 of the reaction chamber height.
4. the reactor of catalytic ozonation waste water according to claim 1, which is characterized in that the vertical center of the partition
Side wall 1/3d ~ 2/3d of reaction chamber described in linear distance, wherein d is the cross-sectional diameter of the reaction chamber.
5. the reactor of catalytic ozonation waste water according to claim 1, which is characterized in that first catalytic bed
2 ~ 5 layers are provided with, wherein 1 ~ 2 layer of lower section for being set to the injector, remaining first catalytic bed are set to the injection
The top of device.
6. the reactor of catalytic ozonation waste water according to claim 1, which is characterized in that first catalytic bed
Cross section it is identical as the cross section of the jet reaction chamber.
7. the reactor of catalytic ozonation waste water according to claim 1, which is characterized in that second catalytic bed
It is set to the downcomer region of the column plate.
8. the reactor of catalytic ozonation waste water according to claim 7, which is characterized in that second catalytic bed
Cross section it is identical as the cross section of the downspout.
9. the reactor of catalytic ozonation waste water according to claim 7, which is characterized in that second catalytic bed
Height be the downspout height 1/3 ~ 3/3.
10. the reactor of catalytic ozonation waste water according to claim 1, which is characterized in that the air inlet pipe and institute
State gas flow point of the gas flow distribution by valve regulated, in the gas circulation pipe and the tail gas branch pipe in air intake branch
With by valve regulated.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201822136781.3U CN209618970U (en) | 2018-12-19 | 2018-12-19 | A kind of reactor of catalytic ozonation waste water |
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| CN201822136781.3U CN209618970U (en) | 2018-12-19 | 2018-12-19 | A kind of reactor of catalytic ozonation waste water |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109437390A (en) * | 2018-12-19 | 2019-03-08 | 南京大学盐城环保技术与工程研究院 | A kind of reactor and its application method of catalytic ozonation waste water |
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2018
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109437390A (en) * | 2018-12-19 | 2019-03-08 | 南京大学盐城环保技术与工程研究院 | A kind of reactor and its application method of catalytic ozonation waste water |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: JIANGSU NANDA HUAXING ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. Assignor: NANJING University & YANCHENG ACADEMY OF ENVIRONMENTAL PROTECTION TECHNOLOGY AND ENGINEERING Contract record no.: X2021980001997 Denomination of utility model: A reactor for catalytic oxidation of wastewater by ozone Granted publication date: 20191112 License type: Common License Record date: 20210324 |
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| EE01 | Entry into force of recordation of patent licensing contract |