CN202164162U - Lime milk dosing and neutralizing device for sewage treatment - Google Patents
Lime milk dosing and neutralizing device for sewage treatment Download PDFInfo
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- CN202164162U CN202164162U CN2011202322548U CN201120232254U CN202164162U CN 202164162 U CN202164162 U CN 202164162U CN 2011202322548 U CN2011202322548 U CN 2011202322548U CN 201120232254 U CN201120232254 U CN 201120232254U CN 202164162 U CN202164162 U CN 202164162U
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- lime
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- dissolver
- neutralization reaction
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Abstract
The utility model discloses a lime milk dosing and neutralizing device for sewage treatment, which comprises a quick lime conveying device, a lime dissolving device, a lime milk adding device, a hydrocyclone separation device, a neutralization reaction device, a pH analysis meter, a flow meter and an automatic control device, wherein the quick lime conveying device, the lime dissolving device, the lime milk adding device and the hydrocyclone separation device are sequentially communicated by pipelines; the hydrocyclone separation device is communicated with the neutralization reaction device by a pipeline provided with a diaphragm valve; the flow meter is arranged on a sewage inlet pipe connected with the neutralization reaction device; the pH analysis meter is positioned in the neutralization reaction device; and the automatic control device is respectively and electrically connected with the pH analysis meter, the flow meter, the quick lime conveying device and the diaphragm valve. The lime milk dosing and neutralizing device for sewage treatment can be used for accurately controlling the dosage amount according to the pH value of the inlet sewage, so that the cost for adding alkali can be reduced.
Description
Technical field
The utility model is about a kind of sewage disposal device; More particularly, about a kind of milk of lime dosing neutralising arrangement that is used for WWT.
Background technology
Acid-bearing wastewater is two kinds of important trade waste with containing alkali waste water.Generally speaking, acid content is greater than 3～5%, and alkali content is called spent acid solution and waste lye greater than 1～3% high-concentration waste water, and this type waste liquid at first will consider to adopt special method to reclaim bronsted lowry acids and bases bronsted lowry wherein.Acid content less than 3～5% or alkali content less than 1～3% acid waste water and alkaline waste water, recovery value is little, often adopts the neutralizing treatment method, makes its pH value reach the standard of waste discharge.
The not treated water body that directly enters of acid waste water can make the receiving water body acidifying, reduces pH, the harm hydrobiont, and produce potential corrosion property.Acid waste water also can destroy Soil structure, reduces crop yield.The pollution of acid waste water is a global problem, so acid waste water is handled the extensive concern that receives Chinese scholars.
Acid waste water has many treatment processs, as adds alkali neutralisation, Wingdale neutralisation, milk of lime neutralisation, alkaline waste water neutralisation etc.It is high to add caustic soda neutralisation running cost, generally should not adopt for the big yield treatment project.It is best utilizing the alkaline waste water neutralization, but common engineering does not have the alkaline waste water of a great deal of to utilize, and therefore, best choice is the milk of lime neutralisation.Adopt milk of lime as in and medicament, not only can make stably reaching standard after the wastewater treatment, and cost is low.Milk of lime neutralisation key is how to guarantee higher dispensing effect, can accurately control dosage reduction processing cost and will guarantee that simultaneously operation is convenient.
The utility model content
In order to solve the problems of the technologies described above; The utility model a kind of milk of lime dosing neutralising arrangement that is used for WWT is provided; Through going out water ph value and can accurately satisfy the unitary requirement of subsequent disposal after the utility model apparatus processes, and can control and add dose, reduction running cost.
The milk of lime dosing neutralising arrangement that is used for WWT that the utility model provides; Comprise: unslaked lime e Foerderanlage, lime dissolver, milk of lime throwing device, cyclone separation device, neutralization reaction device, pH analyser, under meter and automatic control device
Wherein, Said unslaked lime e Foerderanlage, lime dissolver, milk of lime throwing device and cyclone separation device are communicated with through pipeline in regular turn; Said cyclone separation device is communicated with said neutralization reaction device through the pipeline that is provided with diaphragm valve; Said lime dissolver is provided with the water-in that is communicated with inlet channel; Said neutralization reaction device is provided with the sewage admission port, and said sewage admission port is communicated with sewage inlet pipe, and said under meter is arranged on the said sewage inlet pipe; Said pH analyser is arranged in the said neutralization reaction device, and said automatic control device and said pH analyser, said under meter, said unslaked lime e Foerderanlage and said diaphragm valve electrically connect.
Preferably; Said lime dissolver is three grades of lime dissolvers; Be made up of the first step lime dissolver that is communicated with in regular turn through pipeline, second stage lime dissolver and third stage lime dissolver, wherein, said unslaked lime e Foerderanlage is communicated with through the said first step lime of pipeline dissolver; Said first step lime dissolver is provided with the water-in that is communicated with inlet channel, and said third stage lime dissolver is communicated with said milk of lime throwing device through pipeline.
Wherein, said first step lime dissolver, second stage lime dissolver and third stage lime dissolver are respectively by the lime dissolving vessel with place said lime dissolving vessel whipping appts to constitute.
Preferably; Said cyclone separation device is the secondary cyclone separation device; First step cyclone separation device and second stage cyclone separation device by being communicated with through pipeline constitute; Said milk of lime throwing device is communicated with said first step cyclone separation device through pipeline, and said second stage cyclone separation device is communicated with said neutralization reaction device through the pipeline that is provided with diaphragm valve.
Wherein, said second stage cyclone separation device is communicated with said inlet channel through pipeline.
Further, the utility model is used for the milk of lime dosing neutralising arrangement of WWT, also comprises slag mud treatment unit, is communicated with through the slag-drip opening that is provided with on pipeline and the said cyclone separation device.
Wherein, Said neutralization reaction device is made up of neutralization reaction jar and the whipping appts that is arranged in the said neutralization reaction jar; Said neutralization reaction jar is provided with sewage admission port, liquid outlet and slag mud relief outlet; Said sewage admission port is communicated with sewage inlet pipe, and said slag mud relief outlet is communicated with said slag mud treatment unit through pipeline.
Preferably, said unslaked lime e Foerderanlage is a screw feeder.
Preferably, said milk of lime throwing device is a centrifugal water pump.
Preferably, said diaphragm valve is a pneumatic diaphragm valve.
Milk of lime and chemicals dosing plant that the utility model is used for WWT are highly integrated integration apparatus, and level of automation is high, can accurately control the dose that adds of alkali, and the lime dosage is followed the variation of discharge automatically, keep constant concentration; Simple to operation; Stable and reliable working performance adopts screw feeder to add powder, speed closed loop control; Assurance feeds intake evenly, dispersion, precision be in 1%; Adopt three grades of lime dissolver systems, can guarantee that third stage lime dissolver has always dissolves solution completely, thereby can add the good milk of lime of dissolving continuously.
Description of drawings
Fig. 1 is a kind of structural representation that is used for the milk of lime dosing neutralising arrangement of WWT in the utility model.
Description of reference numerals
1. unslaked lime e Foerderanlage; 2. first step lime dissolver;
3. second stage lime dissolver; 4. third stage lime dissolver;
5. milk of lime throwing device; 6. first step cyclone separation device;
7. second stage cyclone separation device; 8. neutralization reaction device;
9. slag mud treatment unit; 10. under meter;
11.pH analyser; 12. whipping appts;
13. whipping appts; 14. whipping appts;
15. whipping appts; 16. automatic control device;
17, diaphragm valve; 100. milk of lime dosing neutralising arrangement.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the present invention is described further so that those skilled in the art can better understand the present invention and implementing, but the embodiment that lifts not conduct to qualification of the present invention.
As shown in Figure 1; The milk of lime dosing neutralising arrangement 100 that is used for WWT of the utility model; Comprise: unslaked lime e Foerderanlage 1, lime dissolver, milk of lime throwing device 5, cyclone separation device, neutralization reaction device 8, pH analyser 11, under meter 10 and automatic control device 16
Wherein, Unslaked lime e Foerderanlage 1, lime dissolver, milk of lime throwing device 5 and cyclone separation device are communicated with through pipeline in regular turn; Cyclone separation device is communicated with neutralization reaction device 8 through the pipeline that is provided with diaphragm valve 17, and neutralization reaction device 8 is provided with the sewage admission port, and it is communicated with sewage inlet pipe; Said under meter 10 is arranged on the said sewage inlet pipe; The lime dissolver is provided with the water-in that is communicated with inlet channel, and pH analyser 11 is arranged in the neutralization reaction device 8, and automatic control device 16 electrically connects with pH analyser 11, under meter 10, diaphragm valve 17 and unslaked lime e Foerderanlage 1.
The lime dissolver is preferably three grades of lime dissolvers; Constitute by the first step lime dissolver 2 that is communicated with in regular turn through pipeline, second stage lime dissolver 3 and third stage lime dissolver 4; Wherein, Unslaked lime e Foerderanlage 1 is communicated with through pipeline first step lime dissolver 2, and third stage lime dissolver 4 is communicated with milk of lime throwing device 5 through pipeline.
First step lime dissolver 2 is by the lime dissolving vessel and place the whipping appts 12 of lime dissolving vessel to constitute; Second stage lime dissolver 3 is by the lime dissolving vessel and place the whipping appts 13 of lime dissolving vessel to constitute; Third stage lime dissolver 4 is by the lime dissolving vessel and place the whipping appts 14 of lime dissolving vessel to constitute.
Cyclone separation device is preferably the secondary cyclone separation device; Constitute by first step cyclone separation device that is communicated with through pipeline 6 and second stage cyclone separation device 7; Milk of lime throwing device 5 is communicated with first step cyclone separation device 6 through pipeline, and second stage cyclone separation device 7 is communicated with neutralization reaction device 8 through the pipeline that is provided with diaphragm valve 17.
Second stage cyclone separation device 7 is communicated with inlet channel through pipeline.
The milk of lime dosing neutralising arrangement 100 that is used for WWT of the utility model also comprises slag mud treatment unit 9, is communicated with through the slag-drip opening that is provided with on pipeline and the cyclone separation device.
Neutralization reaction device 8 is made up of neutralization reaction jar and the whipping appts 15 that is arranged in the neutralization reaction jar; The neutralization reaction jar is provided with sewage admission port, liquid outlet and slag mud relief outlet; The sewage admission port is communicated with sewage inlet pipe, and slag mud relief outlet is communicated with slag mud treatment unit 9 through pipeline.
Unslaked lime e Foerderanlage 1 is preferably screw feeder.
Milk of lime throwing device 5 is preferably centrifugal water pump.
The process that the milk of lime dosing neutralising arrangement of the utility model is used for WWT is following:
Unslaked lime e Foerderanlage 1 adopts screw feeder to add lime powder to first step lime dissolver 2; In first step lime dissolver 2, add process water through inlet channel simultaneously; Make unslaked lime preliminarily solubilised therein; Gravity flow gets into second stage lime dissolver 3, third stage lime dissolver 4 successively and further dissolves then; Three grades of dissolution systems can guarantee that third stage lime dissolver 4 has always and dissolve milk of lime completely, thereby can add the good milk of lime of dissolving continuously.Milk of lime in the third stage lime dissolver 4 (is preferably centrifugal water pump through milk of lime throwing device 5; Acid and alkali-proof pump) rises in the first step cyclone separation device 6 and go; Intake with tangential way; With milk of lime and lime residue layering, lime residue is arranged like slag mud treatment unit 9 through the slag-drip opening of first step cyclone separation device 6 bottoms in first step cyclone separation device 6, and the milk of lime gravity flow gets in the second stage cyclone separation device 7 with tangential way; In second stage cyclone separation device 7 with supernatant, milk of lime and lime residue layering; Supernatant is back in the first step lime dissolver 2 through pipeline and goes, and lime residue is arranged like slag mud treatment unit 9 through the slag-drip opening of second stage cyclone separation device 7 bottoms, and milk of lime joins in the neutralization reaction device 8 through the pipeline that is provided with diaphragm valve 17.Neutralization reaction device 8 is provided with sewage admission port, liquid outlet and slag mud relief outlet; Sour water flows into neutralization reaction device 8 through the sewage admission port; Sour water and milk of lime generation neutralization reaction therein; Between the pH to 6 of adjustment of acidity sewage～9, the sewage after the neutralization flows out from liquid outlet, and lime residue gets into slag mud treatment unit 9 through pipeline and handles.
Wherein, the sewage inlet pipe that links to each other with said neutralization reaction device 8 is provided with under meter 10, is provided with pH analyser 11 in the neutralization reaction device 8.Automatic control device 16 electrically connects with under meter 10, unslaked lime e Foerderanlage 1, pH analyser 11 and diaphragm valve 17.PH analyser 11 is at first monitored the pH value that gets into the sour water in the neutralization reaction device 8; And these data are fed back to automatic control system 16; Under meter 10 monitorings simultaneously get into the flow of the sewage in the neutralization reaction device 8, and these data are fed back to automatic control system 16, and automatic control system 16 is according to the pH value of the sewage that gets into neutralization reaction device 8; Consider again the sewage that gets into neutralization reaction device 8 the flow amount calculating the amount of the unslaked lime that needs and need the process water of dissolving unslaked lime; And this signal feedback controlled the dosage of unslaked lime e Foerderanlage 1 to unslaked lime e Foerderanlage 1, simultaneously correspondingly, but the flooding quantity of the inlet channel that manual shift is communicated with first step lime dissolver 2; Make unslaked lime e Foerderanlage 1 speed closed loop control like this; Thereby guarantee to feed intake evenly, dispersion, precision in 1%, and can control dosage and change with the variation of discharge, guarantee the concentration of milk of lime.In addition; Automatic control device 16 electrically connects with diaphragm valve 17; Can carry out middle pH analyser 11 according to neutralization reaction and monitor and feed back to the pH numerical value in the neutralization reaction device 8 of automatic control device 16 in real time; Whether decision need add milk of lime in neutralization reaction device 8, if need then open diaphragm valve 17, do not need then to close diaphragm valve 17.
Adopt a kind of milk of lime dosing neutralising arrangement that is used for WWT in the utility model can make water outlet pH value, can add the accurate control of dose simultaneously, save the expense that adds alkali according to the pH value of water inlet 6～9; Reduced the processing cost of waste water; Reduce salts contg and alkali content in the water of subsequent disposal simultaneously, improved the efficient of WWT, cooperated the use of gear; Has easy to operate, with low cost advantage.
The above embodiment is the preferred embodiment that proves absolutely that the present invention lifts, and protection scope of the present invention is not limited thereto.Being equal to that the technician in present technique field is done on basis of the present invention substitutes or conversion, all within protection scope of the present invention.Protection scope of the present invention is as the criterion with claims.
Claims (10)
1. milk of lime dosing neutralising arrangement that is used for WWT; It is characterized in that; Comprise: unslaked lime e Foerderanlage, lime dissolver, milk of lime throwing device, cyclone separation device, neutralization reaction device, pH analyser, under meter and automatic control device
Wherein, Said unslaked lime e Foerderanlage, lime dissolver, milk of lime throwing device and cyclone separation device are communicated with through pipeline in regular turn; Said cyclone separation device is communicated with said neutralization reaction device through the pipeline that is provided with diaphragm valve; Said lime dissolver is provided with the water-in that is communicated with inlet channel; Said neutralization reaction device is provided with the sewage admission port, and said sewage admission port is communicated with sewage inlet pipe, and said under meter is arranged on the said sewage inlet pipe; Said pH analyser is arranged in the said neutralization reaction device, and said automatic control device and said pH analyser, said under meter, said unslaked lime e Foerderanlage and said diaphragm valve electrically connect.
2. the milk of lime dosing neutralising arrangement that is used for WWT according to claim 1; It is characterized in that; Said lime dissolver is three grades of lime dissolvers; Be made up of the first step lime dissolver that is communicated with in regular turn through pipeline, second stage lime dissolver and third stage lime dissolver, wherein, said unslaked lime e Foerderanlage is communicated with said first step lime dissolver through pipeline; Said first step lime dissolver is provided with the water-in that is communicated with inlet channel, and said third stage lime dissolver is communicated with said milk of lime throwing device through pipeline.
3. the milk of lime dosing neutralising arrangement that is used for WWT according to claim 1; It is characterized in that said first step lime dissolver, second stage lime dissolver and third stage lime dissolver are respectively by the lime dissolving vessel with place said lime dissolving vessel whipping appts to constitute.
4. the milk of lime dosing neutralising arrangement that is used for WWT according to claim 1; It is characterized in that; Said cyclone separation device is the secondary cyclone separation device; First step cyclone separation device and second stage cyclone separation device by being communicated with through pipeline constitute, and said milk of lime throwing device is communicated with said first step cyclone separation device through pipeline, and said second stage cyclone separation device is communicated with said neutralization reaction device through the pipeline that is provided with diaphragm valve.
5. the milk of lime dosing neutralising arrangement that is used for WWT according to claim 4 is characterized in that, said second stage cyclone separation device is communicated with said inlet channel through pipeline.
6. the milk of lime dosing neutralising arrangement that is used for WWT according to claim 1 is characterized in that, also comprises slag mud treatment unit, is communicated with through the slag-drip opening that is provided with on pipeline and the said cyclone separation device.
7. the milk of lime dosing neutralising arrangement that is used for WWT according to claim 6; It is characterized in that; Said neutralization reaction device is made up of neutralization reaction jar and the whipping appts that is arranged in the said neutralization reaction jar; Said neutralization reaction jar is provided with sewage admission port, liquid outlet and slag mud relief outlet, and said sewage admission port is communicated with sewage inlet pipe, and said slag mud relief outlet is communicated with said slag mud treatment unit through pipeline.
8. the milk of lime dosing neutralising arrangement that is used for WWT according to claim 1 is characterized in that said unslaked lime e Foerderanlage is a screw feeder.
9. the milk of lime dosing neutralising arrangement that is used for WWT according to claim 1 is characterized in that said milk of lime throwing device is a centrifugal water pump.
10. the milk of lime dosing neutralising arrangement that is used for WWT according to claim 1 is characterized in that said diaphragm valve is a pneumatic diaphragm valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202322548U CN202164162U (en) | 2011-07-04 | 2011-07-04 | Lime milk dosing and neutralizing device for sewage treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202322548U CN202164162U (en) | 2011-07-04 | 2011-07-04 | Lime milk dosing and neutralizing device for sewage treatment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202164162U true CN202164162U (en) | 2012-03-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202322548U Expired - Lifetime CN202164162U (en) | 2011-07-04 | 2011-07-04 | Lime milk dosing and neutralizing device for sewage treatment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202164162U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105036416A (en) * | 2015-08-01 | 2015-11-11 | 合肥铜冠国轩铜材有限公司 | Lime joint backflow heavy-metal wastewater treatment system |
| CN114933374A (en) * | 2022-06-01 | 2022-08-23 | 河南盛邦环境工程有限公司 | Acidic water body neutralization treatment device and treatment method thereof |
-
2011
- 2011-07-04 CN CN2011202322548U patent/CN202164162U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105036416A (en) * | 2015-08-01 | 2015-11-11 | 合肥铜冠国轩铜材有限公司 | Lime joint backflow heavy-metal wastewater treatment system |
| CN114933374A (en) * | 2022-06-01 | 2022-08-23 | 河南盛邦环境工程有限公司 | Acidic water body neutralization treatment device and treatment method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHIJI HUAYANG ENVIRONMENTAL ENGINEERING CO., LTD. Free format text: FORMER NAME: JILIN HUEYA ENVIRONMENTAL ENGINEERING CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 132012, 2, Jinsha street, Jilin, Jilin Patentee after: HUEYA ENVIRONMENT ENGINEERING CO., LTD. Address before: 132012, 2, Jinsha street, Jilin, Jilin Patentee before: Jilin HUEYA Environmental Engineering Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20120314 |
|
| CX01 | Expiry of patent term |