CN209338255U - A kind of pendimethalin generates the sour water and buck neutralization reaction device of process generation - Google Patents
A kind of pendimethalin generates the sour water and buck neutralization reaction device of process generation Download PDFInfo
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- CN209338255U CN209338255U CN201821456350.9U CN201821456350U CN209338255U CN 209338255 U CN209338255 U CN 209338255U CN 201821456350 U CN201821456350 U CN 201821456350U CN 209338255 U CN209338255 U CN 209338255U
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Abstract
The utility model generates the sour water that process generates and the COD removal technique that buck neutralization reaction device is formed using pendimethalin, by completing neutralization reaction generation tarry little particle under acidic environment and fixing these little particles using active carbon under acidic environment, so that the COD reactant in sour water and buck is finally dehydrated the filter cake to be formed convenient for burning disposal by centrifuge with active carbon, so that the waste liquid that centrifuge is thrown away becomes light yellow, COD is down to 6000-7000ppm；COD removal effect is preferable, and the above-mentioned waste water for avoiding the generation of pendimethalin production process causes seriously to pollute to environment, and cost is relatively low for COD treatment process, is convenient for promotion and implementation.
Description
Technical field
The present invention relates to chemical wastewater treatment technical field, in particular a kind of pendimethalin generate sour water that process generates with
Buck neutralization reaction device.
Background technique
Sour water and buck can be generated in pendimethalin production process respectively；For the PH of sour water less than 1, buck PH is greater than 13；Its
In, sour water is due in 78 DEG C of methylene chloride as solvent, having used hydrochloric acid and catalyst to make nitrosamine be converted into pendimethalin
Sulfamic acid, after reaction 2 hours, water layer obtains hydrochloric acid after stratification and sulfamic acid is the acid of main matter
Water, COD about 15000-18000ppm or so.And buck is methylene chloride as solvent in production pendimethalin nitrifying process, instead
The compound that a kind of impurity is phenol should be generated, it is soluble in water that this compound and sodium hydroxide reaction generate sodium salt, by standing
The water layer of layering is buck, and buck is mainly that the sodium salt for being the sodium hydroxide and phenol reacted and nitrification generate impurity 35000-
38000ppm.If simply neutralizing two strands of water, then the tarry little particle of suspension can be generated, and it is difficult to filter, is easy
Filter is stopped up, the COD of mixing water is up to 20000ppm, and water color is brown, and decontaminated water processing difficulty is big.
Summary of the invention
Present invention aims at solving the above problems, a kind of sour water and buck that pendimethalin generation process generates is provided
Neutralization reaction device and COD minimizing technology, by the way that buck is added dropwise into sour water, and add active carbon in sour water, so that most
The color of whole waste water has effectively removed COD therein in light yellow；The present invention specifically adopts the following technical scheme that
A kind of pendimethalin generates the sour water and buck neutralization reaction device of process generation, including reaction container, buck are added dropwise
Plate, agitating shaft, several paddles, buck collect set, sour water pipe and active carbon and add bucket, and the agitating shaft is rotationally longitudinal
It is set to the middle part of the reaction container, one end of agitating shaft extends to the outside of agitator and is driven with the output shaft of a motor
Connection；The paddle is uniformly connected on the agitating shaft；It is the annular slab that middle part has hole that plate, which is added dropwise, in the buck, should
The outer level that plate is added dropwise in buck is fixedly connected on the upper inside wall of reaction container, and several dropwise additions are distributed in the plate face that plate is added dropwise in buck
Hole, the upper end wall of reaction container are provided with the buck blasthole opposite with buck dropwise addition plate；The top of agitating shaft is located at buck
It is added dropwise in the hole of plate and the diameter of agitating shaft is less than the hole diameter that buck is added dropwise in the middle part of plate, thus in agitating shaft and buck
It is added dropwise between plate and forms buck leakage gap；It is in inverted taper type that the buck, which collects set, so that buck, which collects set, has position
In the receiving port of upper end and positioned at lower end and diameter is less than the outlet of receiving port, buck collect the outlet cuff of set in
The top of the agitating shaft and to make the receiving port and the buck leak gap opposite；In the middle part of the agitating shaft and lower part
There is the hollow structure of longitudinal holes for inside, and agitating shaft is located at the part that buck is collected in set and is provided with connection buck receipts
Collection set inner space and the longitudinal holes weepage holes, the lower part of agitating shaft be provided be connected to reaction container lower space with it is described
The loss hole of longitudinal holes；The middle part of sliding channel of the reaction container offers sour water blasthole, the sour water pipe and sour water blasthole
Docking；The lower end of active carbon addition bucket is provided with active carbon outlet and the active carbon outlet is from the top of sour water pipe
Side is connected to sour water pipe；The lower sides of reaction container offer liquid material outlet；The reaction container is internally provided with PH meter.
The pendimethalin generates the sour water and buck neutralization reaction device that process generates, and further design is,
The buck is added dropwise the interior of plate and top is provided with restrictor ring.
The pendimethalin generates the sour water and buck neutralization reaction device that process generates, and further design is,
The receiving port that the buck collects set turns down inwardly forms baffle side.
The pendimethalin generates the sour water and buck neutralization reaction device that process generates, and further design is,
The first valve is provided in the middle part of the active carbon outlet.
The pendimethalin generates the sour water and buck neutralization reaction device that process generates, and further design is,
The second valve is provided in the sour water pipe.
The pendimethalin generates the sour water and buck neutralization reaction device that process generates, and further design is,
Second valve is triple valve, which is also connected with flushing pipe.
The pendimethalin generates the sour water and buck neutralization reaction device that process generates, and further design is,
The disturbance plate for adjusting active carbon distribution situation is connected on the paddle at middle part.
Active carbon can be added in neutralization reaction forward reaction bucket using neutralization reaction device provided by the invention, activity
Charcoal has preferable adsorption effect to the tarry little particle that neutralization reaction generates, so that tarry little particle is fixed on activity
In charcoal particle, convenient for the short grained active carbon centrifugal filtration of tarry will be adsorbed with subsequently through centrifuge to divide with liquid
From；In addition, using in the neutralization reaction device buck be added dropwise plate buck is added dropwise into reaction container, ensure neutralization reaction and
The suction-operated of active carbon is all occurring at the suspended particulate substance in acidic environment, enabling reaction to generate sufficiently by active carbon
Absorption, and make the dropwise addition process of buck comparatively rapid, the reaction time is shortened, improves and exists including sour water and buck
Interior waste water treatment efficiency；In fact, neutralization reaction according to the present invention and the suction-operated of active carbon are in alkaline environment
In function and effect be not so good as to occur in acidic environment, in other words, sour water and add active carbon if being added dropwise into buck, activity
Charcoal crash before tar adsorption shape little particle, final tarry little particle can be largely attached on paddle, subsequent
It is difficult to be removed by centrifugal device；In addition, flushing pipe is connected on sour water pipe using triple valve, convenient for complete in one-stop operation
At a small amount of flushing water is injected in backward reaction container, reaction container inside is rinsed in conjunction with the paddle of rotation, thus before avoiding
The liquid material of secondary response remains then influence subsequent job process in reaction container.
Detailed description of the invention
Fig. 1 is neutralization reaction apparatus structure schematic diagram of the present invention.
Specific embodiment
Below in conjunction with Figure of description and embodiment, invention is further explained:
Pendimethalin as shown in the figure generates the sour water and buck neutralization reaction device that process generates, including reaction container 1, alkali
Water droplet splice 2, agitating shaft 3, several paddles 4, buck collect set 5, sour water pipe 6 and active carbon and add bucket 7, and agitating shaft 3 can
Rotationally it is longitudinally disposed at the middle part of reaction container, one end of agitating shaft 3 extends to the outside of agitator and defeated with a motor 8
Shaft transmission connection；Paddle 4 is uniformly connected on agitating shaft；It is the annular slab that middle part has hole, the alkali that plate 2, which is added dropwise, in buck
The outer level of water droplet splice 2 is fixedly connected on the upper inside wall of reaction container, and several dropwise additions are distributed in the plate face that plate is added dropwise in buck
Hole 21, the upper end wall of reaction container are provided with the buck blasthole 11 opposite with buck dropwise addition plate；The top of agitating shaft is located at buck
It is added dropwise in the hole of plate and the diameter of agitating shaft is less than the hole diameter that buck is added dropwise in the middle part of plate, thus in agitating shaft and buck
It is added dropwise between plate and forms buck leakage gap；Buck, which is collected, covers 5 in inverted taper type, so that buck, which collects set, to be had positioned at upper
The receiving port at end and positioned at lower end and diameter is less than the outlet of receiving port, buck collects the outlet cuff of set in stirring
The top of axis and to make receiving port and buck leak gap opposite；3 middle part of agitating shaft and lower part are internal with longitudinal holes
31 hollow structure, and agitating shaft is located at the part that buck is collected in set and is provided with connection buck and collects set inner space and vertical
To the weepage holes 32 in duct, the lower part of agitating shaft is provided with the loss hole 33 of connection reaction container lower space and longitudinal holes；Instead
The middle part of sliding channel of bucket 1 is answered to offer sour water blasthole 12, sour water pipe 6 is docked with sour water blasthole；The lower end of active carbon addition bucket 7
It is provided with active carbon outlet 71 and the active carbon outlet is connected to sour water pipe from by the top of sour water pipe；Under reaction container 1
Portion's side wall offers liquid material outlet 13；Reaction container is internally provided with PH meter 9.
Using the sour water and buck COD minimizing technology carried out among the above with reaction unit, specifically comprise the following steps:
1), be added active carbon into active carbon addition bucket under normal temperature and pressure, the specification of active carbon is 150 mesh, quality with
Sour water mass ratio is advisable for 1:6.25；And the quality of sour water is determined according to the working space of reaction container, the present embodiment uses anti-
Answering bucket is 2000 liters, and corresponding sour water quality is then advisable with 500 kilograms, and the quality of corresponding active carbon is 80 kilograms；Open electricity
Machine rotates agitating shaft, and 1000-1400 revs/min of mixing speed；The sour water is added into agitator, sour water carries active carbon
Into inside reaction container.
2) buck, is added into reaction container from buck blasthole, buck falls within buck dropwise addition plate after entering reaction container
On, part buck is directly added dropwise in the sour water from hole is added dropwise, remaining buck enters buck from buck leakage gap and collects set
It flows into the longitudinal holes of agitating shaft and finally enters in reaction container from loss hole from the lower part of agitating shaft；It reads to measure PH to PH meter
When value is 6, stop addition buck；Specifically, due to measurement result have certain hysteresis quality, pH value be greater than 5 when then between
Having a rest property supplies buck, until pH value is stablized at 6, stops supply buck completely；Continue stirring 30-50 minutes.At this point, sour water and
Buck reaction generates tarry little particle and is adsorbed in active carbon, forms the liquid material of solid-liquid mixing.
3), then the liquid material in reaction container is extracted to centrifuge, centrifuge specifically uses under the vertical scraper of the LGZ of outsourcing
Portion's discharging automatic centrifuge, the filter cake that centrifugation obtains the liquid of low COD and filtering is formed, filter cake send incinerator burning disposal.
The final COD of liquid by above-mentioned process is 5987ppm, and in light yellow, COD is efficiently removed color.
Buck is added dropwise the interior of plate 2 and top is provided with restrictor ring 22, so that the buck on plate is added dropwise first via drop in buck
Hole is added to be evenly distributed to the upper surface of sour water；When buck amount is larger on buck dropwise addition plate, enter buck from buck leakage gap
It collects in set, is then thrown out of along the longitudinal holes inside agitating shaft from the loss hole of lower part；So that the adding speed of buck obtains
To raising, it can but guarantee that any liquid level is in acidic environment in reaction container.
The buck for entering buck collection set in order to prevent is thrown out of, and the receiving port that buck collects set 5 turns down to be formed inwardly
Baffle side 51.
The middle part of active carbon outlet 71 is provided with the first valve 72.In fact, the company of sour water pipe and active carbon outlet
The place of connecing forms venturi tube structure, when sour water enters in reaction container, is formed and is inhaled to the active carbon being located in active carbon addition bucket
Power enters in reaction container convenient for active carbon with sour water；The second valve 61 is provided in sour water pipe 6, the after the completion of sour water addition
Two valves cut off sour water pipe；Specifically the second valve is three-position three-way valve, which is also connected with flushing pipe 10,
Appropriate flushing liquor is injected into reaction container after the completion of every subjob.
Be connected with the disturbance plate 41 for adjusting active carbon distribution situation on the paddle 4 at middle part, active carbon into
Entering reaction container, initially i.e. disturbed plate intercepts and sheds each position to reaction container, uniformly distributed convenient for active carbon.
The present embodiment ensures neutralization reaction and the suction-operated of active carbon all occurring in acidic environment, so that reaction
The suspended particulate substance of generation can be sufficiently tightly held by activated carbon, and make the dropwise addition process of buck comparatively rapid, be shortened
In the reaction time, improve the waste water treatment efficiency including sour water and buck；In fact, according to the present invention neutralize instead
It answers and function and effect of the suction-operated of active carbon in alkaline environment is not so good as to occur in acidic environment, in other words, make
For comparative experiments, sour water is added dropwise into buck and adds active carbon, active carbon crash before tar adsorption shape little particle,
Final tarry little particle can be largely attached on paddle, subsequent to be also difficult to be removed by centrifugal device, specifically,
The liquid COD that comparative experiments most obtains is 6700ppm, and color is buff；And the tarry matters of a large amount of thick darks again
It sticks on stirring liquid.
Claims (7)
1. a kind of pendimethalin generates the sour water and buck neutralization reaction device that process generates, which is characterized in that including reaction container,
Plate, agitating shaft, several paddles, buck, which is added dropwise, in buck, which collects set, sour water pipe and active carbon addition bucket, the agitating shaft, to turn
It is longitudinally disposed at the middle part of the reaction container dynamicly, one end of agitating shaft extends to the outside of agitator and defeated with a motor
Shaft transmission connection；The paddle is uniformly connected on the agitating shaft；It is that middle part has hole that plate, which is added dropwise, in the buck
Annular slab, the outer level which is added dropwise plate are fixedly connected on the upper inside wall of reaction container, and the plate face distribution of plate is added dropwise in buck
There are several dropwise addition holes, the upper end wall of reaction container is provided with the buck blasthole opposite with buck dropwise addition plate；Agitating shaft it is upper
Portion is located in the hole of buck dropwise addition plate and the diameter of agitating shaft is less than the hole diameter that buck is added dropwise in the middle part of plate, thus stirring
It mixes axis and buck is added dropwise between plate and forms buck leakage gap；It is in inverted taper type that the buck, which collects set, so that buck is received
Collection set is with the receiving port positioned at upper end and positioned at lower end and diameter is less than the outlet of receiving port, and buck collects the row of set
Cuff is exported in the top of the agitating shaft and makes the receiving port opposite with buck leakage gap；The agitating shaft
Middle part and lower part are the internal hollow structure with longitudinal holes, and agitating shaft is located at the part that buck is collected in set and is provided with
The weepage holes that buck collects set inner space and the longitudinal holes are connected to, the lower part of agitating shaft is provided with connection reaction container lower part
The loss hole in space and the longitudinal holes；The middle part of sliding channel of the reaction container offers sour water blasthole, the sour water pipe with
The docking of sour water blasthole；The lower end of the active carbon addition bucket is provided with active carbon outlet and the active carbon outlet is certainly sour
Sour water pipe is connected to by the top of water pipe；The lower sides of reaction container offer liquid material outlet；The reaction container is internally provided with
PH meter.
2. pendimethalin according to claim 1 generates the sour water and buck neutralization reaction device that process generates, feature
It is, the buck is added dropwise the interior of plate and top is provided with restrictor ring.
3. pendimethalin according to claim 1 generates the sour water and buck neutralization reaction device that process generates, feature
It is, the receiving port that the buck collects set turns down inwardly forms baffle side.
4. pendimethalin according to claim 1 generates the sour water and buck neutralization reaction device that process generates, feature
It is, is provided with the first valve in the middle part of the active carbon outlet.
5. pendimethalin according to claim 1 generates the sour water and buck neutralization reaction device that process generates, feature
It is, is provided with the second valve in the sour water pipe.
6. pendimethalin according to claim 5 generates the sour water and buck neutralization reaction device that process generates, feature
It is, second valve is triple valve, which is also connected with flushing pipe.
7. pendimethalin according to claim 1 generates the sour water and buck neutralization reaction device that process generates, feature
It is, the disturbance plate for adjusting active carbon distribution situation is connected on the paddle at middle part.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821456350.9U CN209338255U (en) | 2018-09-06 | 2018-09-06 | A kind of pendimethalin generates the sour water and buck neutralization reaction device of process generation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821456350.9U CN209338255U (en) | 2018-09-06 | 2018-09-06 | A kind of pendimethalin generates the sour water and buck neutralization reaction device of process generation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109231538A (en) * | 2018-09-06 | 2019-01-18 | 江苏永安化工有限公司 | A kind of pendimethalin generates the sour water and buck neutralization reaction device and COD minimizing technology of process generation |
-
2018
- 2018-09-06 CN CN201821456350.9U patent/CN209338255U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109231538A (en) * | 2018-09-06 | 2019-01-18 | 江苏永安化工有限公司 | A kind of pendimethalin generates the sour water and buck neutralization reaction device and COD minimizing technology of process generation |
| CN109231538B (en) * | 2018-09-06 | 2024-02-27 | 江苏永安化工有限公司 | Acid water and alkaline water neutralization reaction device and COD removal method generated in pendimethalin production process |
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