CN103058491A - Composite filter-pressing centrifugal dehydrant - Google Patents
Composite filter-pressing centrifugal dehydrant Download PDFInfo
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- CN103058491A CN103058491A CN2013100086351A CN201310008635A CN103058491A CN 103058491 A CN103058491 A CN 103058491A CN 2013100086351 A CN2013100086351 A CN 2013100086351A CN 201310008635 A CN201310008635 A CN 201310008635A CN 103058491 A CN103058491 A CN 103058491A
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Abstract
The invention discloses a composite filter-pressing centrifugal dehydrant, which comprises lime, PAM and a foaming agent, wherein the mass ratio of the lime, the PAM and the foaming agent is (1.0-1.4):(1-0.3):( 0.05-0.1). The composite filter-pressing centrifugal dehydrant disclosed by the invention is high in dehydrating efficiency.
Description
Technical field
The present invention relates to use in a kind of building trade, can cooperate the press filtration centrifugation apparatus urban waste mud, mud, mud to be implemented the composite pressure filtering centrifuge dehydration agent of mud-water separation solidification treatment.
Background technology
The conventional dehydration agent is generally polyacrylamide, its effect is equivalent to flocculation agent, in mud or sewage, add polyacrylamide during use, make the particle aggregation in mud or the sewage produce flocculation group, be beneficial to next step and carry out the press filtration processing, but this dewatering agent is relatively poor for urban waste mud mud-water separation dehydrating effect.
Summary of the invention
Technical problem to be solved by this invention provides the higher composite pressure filtering centrifuge dehydration agent of a kind of dewatering efficiency.
For this reason, composite pressure filtering centrifuge dehydration agent provided by the invention, its composition comprises lime, PAM and whipping agent, above-mentioned materials mass mixing proportioning is lime 1.0-1.4, PAM0.1-0.3, whipping agent 0.05-0.1.
In the above-described embodiments, be mixed with gypsum in the composite pressure filtering centrifuge dehydration agent, the mass mixing proportioning of gypsum is 0.6-1.0.
In the above-described embodiments, be mixed with flyash in the composite pressure filtering centrifuge dehydration agent, the mass mixing proportioning of flyash is 1.5-2.5.
In this patent, the lime that adds can be used for the aggregated particles thing, and whipping agent can foam in mud and forms interstitial channels, mud during by press filtration this interstitial channels can be used for discharging inner moisture, thereby dewatering efficiency is improved greatly, and flyash exists as carrier, its effect is to be incorporated in the said mixture, make lime and whipping agent not only can be diffused into larger scope, simultaneously lime, gypsum, flyash mixing has the characteristic of silicate, plays the discharge of moisture content in flocculation solidification, promotion mud or the mud in mud or mud.The whipping agent ratio that adopts in this patent can form minimum interstitial channels through verification experimental verification, and its dewatering efficiency of filter-press dehydration agent that adopts prescription provided by the invention to make improves at least 50% than conventional dehydration agent.In addition, the adding of PAM can improve the aggregation extent of particulate matter greatly in this patent, organic and inorganic flocculating agent compound, form synergistic effect, the volume of aggregation is larger, thereby can make the centrifugal earth that obtains of press filtration finer and close, water content is lower, applicable to the earth degree of compactness is required higher field.
Embodiment
Expansion type dewatering agent provided by the invention, its composition comprises lime, flyash, PAM and whipping agent, above-mentioned materials mass mixing proportioning is lime 1.0-1.4, flyash 1.5-2.5, PAM0.1-0.3, whipping agent 0.05-0.1, wherein also can add gypsum, the mass mixing proportioning of gypsum is 0.6-1.0, the effect of gypsum is identical with lime, all is for the aggregated particles thing.The consumption of whipping agent is very important in this patent, and the consumption of whipping agent is too large, and foaming is difficult for dehydration too much on the contrary, and the degree of compactness of earth is very poor, and the too little foaming of consumption can't be linked to be passage between the bubble very little.In this patent, any product that can be used for foaming generally comprises calcium carbonate, magnesiumcarbonate, sodium bicarbonate, water glass, silicon carbide and pneumatogen on the whipping agent available markets.
The experimental data that the below provides the best embodiment of three kinds of effects is for checking:
Embodiment 1, the mass mixing proportioning is lime 1.4, gypsum 0.8, flyash 2.0,0.06 of PAM0.2 whipping agent, above material adopts to mix and gets final product, mud is 500 milliliters in the experiment, adopting unit pressure is the filter-pressing device press mud of 0.1 MPa, through experiment, the day part aquifer yield is a, time of filter pressing 5 minutes, 73 milliliters of aquifer yields, b, time of filter pressing 10 minutes, 106 milliliters of aquifer yields, c, time of filter pressing 15 minutes, 131 milliliters of aquifer yields, d, time of filter pressing 20 minutes, 153 milliliters of aquifer yields, e, time of filter pressing 25 minutes, 177 milliliters of aquifer yields, f, time of filter pressing 30 minutes, 194 milliliters of aquifer yields, g, time of filter pressing 35 minutes, 207 milliliters of aquifer yields, h, time of filter pressing 75 minutes, 280 milliliters of aquifer yields.In the present embodiment, if do not add gypsum, and the proportioning of other materials safety is when identical, and its day part aquifer yield not have variation substantially.
Embodiment 2, the mass mixing proportioning is lime 1.2, gypsum 1.0, flyash 2.0,0.08 of PAM0.1 whipping agent, above material adopts to mix and gets final product, mud is 500 milliliters in the experiment, adopting unit pressure is the filter-pressing device press mud of 0.1 MPa, through experiment, the day part aquifer yield is a, time of filter pressing 5 minutes, 74 milliliters of aquifer yields, b, time of filter pressing 10 minutes, 104 milliliters of aquifer yields, c, time of filter pressing 15 minutes, 128 milliliters of aquifer yields, d, time of filter pressing 20 minutes, 148 milliliters of aquifer yields, e, time of filter pressing 25 minutes, 165 milliliters of aquifer yields, f, time of filter pressing 30 minutes, 180 milliliters of aquifer yields, g, time of filter pressing 35 minutes, 194 milliliters of aquifer yields, h, time of filter pressing 75 minutes, 272 milliliters of aquifer yields.In the present embodiment, if do not add gypsum, and the proportioning of other materials safety is when identical, and its day part aquifer yield not have variation substantially.
Embodiment 3, the mass mixing proportioning is lime 1.0, gypsum 1.0, flyash 1.5, PAM0.2,0.09 of whipping agent, above material adopts to mix and gets final product, mud is 500 milliliters in the experiment, adopting unit pressure is the filter-pressing device press mud of 0.1 MPa, through experiment, the day part aquifer yield is a, time of filter pressing 5 minutes, 75 milliliters of aquifer yields, b, time of filter pressing 10 minutes, 103 milliliters of aquifer yields, c, time of filter pressing 15 minutes, 134 milliliters of aquifer yields, d, time of filter pressing 20 minutes, 152 milliliters of aquifer yields, e, time of filter pressing 25 minutes, 169 milliliters of aquifer yields, f, time of filter pressing 30 minutes, 192 milliliters of aquifer yields, g, time of filter pressing 35 minutes, 206 milliliters of aquifer yields, h, time of filter pressing 75 minutes, 268 milliliters of aquifer yields.In the present embodiment, if do not add gypsum, and the proportioning of other materials safety is when identical, and its day part aquifer yield not have variation substantially.
More than three embodiment all adopt same mud consumption and filtering equipment, its day part is press-filtered out the water yield and final outflow water amount, when adopting the conventional dehydration agent and adopting the same mud of same filtering equipment press filtration, the aquifer yield of day part, according to the aquifer yield of relatively comparing under traditional mud similarity condition, adopt the water yield that is press-filtered out of filter-press dehydration agent of the present invention to exceed 50.2%.
Claims (6)
1. composite pressure filtering centrifuge dehydration agent, it is characterized in that: its composition comprises lime, PAM and whipping agent, above-mentioned materials mass mixing proportioning be lime 1.0-1.4,, PAM0.1-0.3, whipping agent 0.05-0.1.
2. composite pressure filtering centrifuge dehydration agent according to claim 1 is characterized in that: be mixed with gypsum in the described composite pressure filtering centrifuge dehydration agent, the mass mixing proportioning of gypsum is 0.6-1.0.
3. composite pressure filtering centrifuge dehydration agent according to claim 2 is characterized in that: be mixed with flyash in the described composite pressure filtering centrifuge dehydration agent, the mass mixing proportioning of flyash is 1.5-2.5.
4. composite pressure filtering centrifuge dehydration agent according to claim 3 is characterized in that: described mass mixing proportioning is lime 1.4, gypsum 0.8, flyash 2.0, PAM0.2 and whipping agent 0.06.
5. composite pressure filtering centrifuge dehydration agent according to claim 3 is characterized in that: described mass mixing proportioning is lime 1.2, gypsum 1.0, flyash 2.0, PAM0.1 and whipping agent 0.08.
6. composite pressure filtering centrifuge dehydration agent according to claim 3 is characterized in that: described mass mixing proportioning is lime 1.0, gypsum 1.0, flyash 1.5, PAM0.2 and whipping agent 0.09.
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| CN2013100086351A CN103058491A (en) | 2013-01-10 | 2013-01-10 | Composite filter-pressing centrifugal dehydrant |
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| CN2013100086351A CN103058491A (en) | 2013-01-10 | 2013-01-10 | Composite filter-pressing centrifugal dehydrant |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107162381A (en) * | 2017-07-31 | 2017-09-15 | 长江师范学院 | A kind of device for treating sludge and its method |
| CN107200461A (en) * | 2017-07-31 | 2017-09-26 | 长江师范学院 | A kind of process for treating sludge |
| CN107226597A (en) * | 2017-07-31 | 2017-10-03 | 长江师范学院 | A kind of sludge treatment special agent and its application method |
| CN113526839A (en) * | 2020-04-22 | 2021-10-22 | 深圳市深水生态环境技术有限公司 | Novel high-dry sludge dewatering agent and application method thereof |
Citations (4)
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| JP3097162B2 (en) * | 1991-03-27 | 2000-10-10 | 栗田工業株式会社 | Sludge dewatering agent and method for dewatering sludge using the same |
| CN101723572A (en) * | 2010-01-19 | 2010-06-09 | 齐利人 | Method for modifying, filter-pressing and dewatering sludge |
| CN102249514A (en) * | 2010-05-17 | 2011-11-23 | 唐菊香 | Low-energy drying treatment method for discharged sludge |
| CN202482187U (en) * | 2012-02-16 | 2012-10-10 | 浙江绿色时代环保科技有限公司 | Efficient sludge dehydrating device |
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2013
- 2013-01-10 CN CN2013100086351A patent/CN103058491A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3097162B2 (en) * | 1991-03-27 | 2000-10-10 | 栗田工業株式会社 | Sludge dewatering agent and method for dewatering sludge using the same |
| CN101723572A (en) * | 2010-01-19 | 2010-06-09 | 齐利人 | Method for modifying, filter-pressing and dewatering sludge |
| CN102249514A (en) * | 2010-05-17 | 2011-11-23 | 唐菊香 | Low-energy drying treatment method for discharged sludge |
| CN202482187U (en) * | 2012-02-16 | 2012-10-10 | 浙江绿色时代环保科技有限公司 | Efficient sludge dehydrating device |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107162381A (en) * | 2017-07-31 | 2017-09-15 | 长江师范学院 | A kind of device for treating sludge and its method |
| CN107200461A (en) * | 2017-07-31 | 2017-09-26 | 长江师范学院 | A kind of process for treating sludge |
| CN107226597A (en) * | 2017-07-31 | 2017-10-03 | 长江师范学院 | A kind of sludge treatment special agent and its application method |
| CN107200461B (en) * | 2017-07-31 | 2020-04-07 | 长江师范学院 | Sludge treatment method |
| CN107226597B (en) * | 2017-07-31 | 2020-07-14 | 长江师范学院 | Special reagent for sludge treatment and use method thereof |
| CN107162381B (en) * | 2017-07-31 | 2020-08-21 | 长江师范学院 | Sludge treatment equipment and method |
| CN113526839A (en) * | 2020-04-22 | 2021-10-22 | 深圳市深水生态环境技术有限公司 | Novel high-dry sludge dewatering agent and application method thereof |
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Address after: Dasan Ouhai District 325000 Zhejiang province Wenzhou Higher Education Park Applicant after: Wenzhou University Address before: 325000 Zhejiang province Chashan Wenzhou Higher Education Park Applicant before: Wenzhou University |
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Application publication date: 20130424 |