CN202156972U - Combination sand filter device - Google Patents
Combination sand filter device Download PDFInfo
- Publication number
- CN202156972U CN202156972U CN2011201038050U CN201120103805U CN202156972U CN 202156972 U CN202156972 U CN 202156972U CN 2011201038050 U CN2011201038050 U CN 2011201038050U CN 201120103805 U CN201120103805 U CN 201120103805U CN 202156972 U CN202156972 U CN 202156972U
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- China
- Prior art keywords
- sand
- filter
- bed filter
- filtering device
- container
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Images
Abstract
The utility model belongs to the field of sewage treatment and in particular relates to a combination sand base filter purification device. A combination sand filter device comprises a plurality of groups of vertically arranged sand filters from the top to the bottom. Each group of sand filters comprise a sand container with an open cavity and filter sand laid in the sand container. Seepy materials are arranged on the bottom surface of the sand container to form holes for liquid water molecules to penetrate. The lateral wall of the sand container is provided with a structure which liquid water molecules cannot penetrate through. The sand container is provided with seepy holes to seep by modifying aggregate granules and doesn't seep through water passing holes on the bottom surface, thereby resolving that problem that suspended particles in water block the water passing holes to affect water passing efficiency. The sand filter device can flexibly choose combination quantity according to water quality of water source to be filtered, thereby being convenient in dismount and replacing and improving filter efficiency and running efficiency.
Description
Technical field
The utility model belongs to the sewage purification process field, is specifically related to a kind of combined sand base filtration unit.
Background technology
Nowadays; The general employing of municipal sewage treatment technology is delivered to sewage work through specific sewage collecting pipeline with the city sewage effluent; In a plurality of settling tanks, carry out one-level processing, secondary biochemical treatment and sludge treatment, make it reach national specified discharge standard.This kind treatment technology need use a large amount of chemical flocs, and the sewage collecting pipeline of long distance, and needs bigger land area.Therefore, the way of dependence sewage work Treating Municipal Sewage comparatively is suitable for macroscopical bulk treatment of municipal effluent, for indivedual living community and WWT among a small circle and impracticable.
At present, to WWT demand small-sized and among a small circle, generally can adopt the filtering way of multistage sand base to replace using the method for chemical flocculation.This method adopts sandstone as filtering material; With the PM for particulate matter that contains in the sewage, suspended substance, mikrobe, nitrogen, phosphorus, metal and other can not be from sand basic unit the material of infiltrate dam respectively in the surface of the casting bed in different spaces or inner; Wherein small portion nitrogen, phosphorus, heavy metal are removed through the mikrobe metabolism that is grown in the grit surface; Most of the nitrogen, phosphorus, heavy metal absorb through root system of plant to be removed, and the water body that permeates down through sand beds can reach emission standard.
Chinese patent CN2756295Y discloses a kind of downflow system depth-type sand filter; Said sand-bed filter comprises filtering layer and catchment area; Said filtering layer is made up of the dividing plate of different-grain diameter sand a plurality of supports; Be distributed with water hole on the said dividing plate, the sand particle grain size reduces from top to down gradually, below the sand of minimum grain size, is provided with the collecting layer; Said collecting layer is made up of the sand that particle size increases from top to bottom gradually, and the sand particle grain size of collecting layer topmost is greater than the sand particle grain size of filtering layer foot.This patent is provided with the collecting layer of being made up of the multilayer sand in the bottom of said filtering layer; The dividing plate that has replaced former each layer of filtering layer sandstone bottom; Avoided owing to the too small problem of blocking water hole of lower floor's grain diameter, being provided with of collecting layer can prolong the regeneration interval and prolong useful working life; And this sand-bed filter can be according to the contaminated situation of required filtering sewage, and the filtration number of plies of selected required setting is easy to use flexibly.Yet; The described sand-bed filter of this patent adopts the dividing plate support and isolates each layer filtration sand; Flow to one deck filtration layer of sand down through the water body after each layer filtration through the water hole that is distributed on the said dividing plate; Require the size of the water hole of each layer dividing plate should be less than the particle size of the sand of institute's support; Therefore the sand water hole that is easy to block dividing plate causes the dirty speed of sewage to slow down even stops up, and the set collecting layer of this patent is prone to stop up to undermost dividing plate and setting just, but does not still solve each dividing plate blocking problem of filtering layer upper strata; Exist in the use dismounting and inconvenient problem is changed in maintenance because this sand-bed filter is an one-piece construction in addition,, not only use inconvenient but also promoted operation cost in case go wrong then need integral replacing.
The utility model content
For this reason, the utility model technical problem to be solved is that the sand in the multilayer sand filtering device of the prior art is prone to obstruction support dividing plate and causes sewage can't flow into the problem of lower floor's filtering layer, and then a kind of not susceptible to plugging built-up type sand filtering device is provided.
For solving the problems of the technologies described above; The described built-up type sand filtering device of the utility model comprises the some groups of sand-bed filters of vertically arranging from top to bottom; Every group of filter sand of crossing that said sand-bed filter comprises the Sheng sand container that has an open cavity and is layed in said Sheng sand internal tank; Seepy material is contained in the bottom surface of said Sheng sand container, forms the hole that liquid water molecules is seen through between the said seepy material, and the sidewall of said Sheng sand container has the impervious structure of liquid water molecules; During the operation of said sand filtering device, said sand-bed filter filtered sewage flow to the said sand-bed filter of lower floor and further filters through the upper strata.
The said filter sand of crossing is at least partly formed by particles of aggregates and hydrophilic agglomerant bonding.
Said Sheng sand container has the sidewall that is formed by waterproof and breathable particle and hydrophobic sticker bonding, and forming gas molecule can pass through and the impervious structure of liquid water molecules.
The coefficient of permeability of said Sheng sand container bottoms is (0.1-1.0) * 10
-2M/s.
In the said sand-bed filter of two adjacent groups, the difference that last one group of said Sheng sand container and next group are stated the coefficient of permeability of containing the sand container bottoms is (0.2-0.3) * 10
-2M/s.
The long-pending sectional area of the opened end section of said Sheng sand container greater than the bottom surface.
In the said sand-bed filter of two adjacent groups, the bottom surface sectional area of last one group of said sand-bed filter is long-pending less than next opened end section of organizing said sand-bed filter.
In the said sand-bed filter of two adjacent groups, the said particle diameter of crossing filter sand in last one group of said sand-bed filter is organized the said particle diameter of crossing filter sand in the said sand-bed filter greater than next.
In the said sand-bed filter of two adjacent groups, the said particle diameter difference of crossing filter sand that the particle diameter of the said filter sand excessively in last one group of said sand-bed filter and next are organized in the said sand-bed filter is the 20-100 order, more preferably the 40-70 order.
Said sand filtering device also comprises the multilayer bracing frame, and each organizes each layer that said sand-bed filter places support frame as described above respectively.
Each distance of organizing between the said sand-bed filter is 1-10cm, is more preferably 1-5cm.
Said sand-bed filter also comprises plants the landscape plant of crossing in the filter sand in said.
Said landscape plant is acid and alkali-resistance, the water-proof emergent of resistant, like reed, Canna generalis Bailey etc.
Said seepy material comprises particles of aggregates and sticker, and said sticker includes hydrophilic agglomerant at least.
Said hydrophilic agglomerant is one or more in epoxy resin, urethane and the vinyl resin, and the molecular side chain in said epoxy resin, urethane and the vinyl resin contains and contains the non-ionic hydrophilic segment on wetting ability carboxylate salt, sulphonate, ammonium salt, hydroxyl or the main chain.
Said waterproof and breathable particle comprises particles of aggregates and is coated on the lyophobic dust on the said particles of aggregates; Described lyophobic dust is the hydrophobic resin film that is coated on the said particles of aggregates, and said hydrophobic resin film is by one or more films that form in hydrophobicity epoxy resin, resol, urethane resin and the silicone resin.
Said hydrophobic nature sticker is a kind of in fluorine-containing epoxy resin sticker, siliceous epoxy adhesive, organosilicon sticker, Polyurethane, alkyd resin and the resol or several kinds mixture wherein.
Said aggregate is a kind of in silica sand, slag, haydite or the glass microballon or several kinds mixture wherein.
Said lyophobic dust is the 1-8wt% of particles of aggregates.
The aperture of the hole between the said waterproof and breathable particle is 0.001-0.3mm, and that more excellent is 0.01-0.2 mm.
The described seepy material of the utility model comprises: aggregate and sticker, and include hydrophilic agglomerant at least, and the mass percent that used sticker accounts for aggregate is no less than 20%.Sticker in the said sticker except that hydrophilic agglomerant is a resin glue.Said aggregate is a kind of in natural siliceous sand, slag, haydite or the glass microballon or several kinds mixture wherein, and its grain diameter is 0.05-2mm.Said hydrophilic agglomerant is the hydrophilic resin sticker; More excellent is epoxy resin, urethane and vinyl resin three's arbitrary combination, and the molecular side chain in said epoxy resin, urethane and the vinyl resin contains and contains the non-ionic hydrophilic segment on wetting ability carboxylate salt, sulphonate, ammonium salt, hydroxyl or the main chain.Simultaneously, also be added with aliphatic polyamine or alicyclic polyamine class solidifying agent in the said epoxy resin, the mass percent that its consumption accounts for epoxy resin is 60%; Also be added with the Polyurethane curing reaction catalyst in the said urethane resin.Can be added with a spot of mineral binder bond in the described sticker, be added with siliceous, admire or coupling agent, photostabilizer and/or inhibitor, the hydrophilic inorganic material of element such as phosphorus, like in zeyssatite, wilkinite, the perlite one or more.
Said lyophobic dust in the said waterproof and breathable particle is the hydrophobic resin film, and the quality of said hydrophobic resin film accounts for the 1-8% of aggregate quality.Said hydrophobic resin film is by one or more films that form in hydrophobicity epoxy resin, resol, urethane resin and the silicone resin.Preferably, said hydrophobicity epoxy resin is one or more in glycidyl ether based epoxy resin, glycidyl ester based epoxy resin, Racemic glycidol amine epoxy resin, line style aliphatic category epoxy resin, alicyclic based epoxy resin, polysulfide-rubber-modified epoxy, polyamide resin modified epoxy, Z 150PH uncle butyraldehyde modified epoxy, acrylonitrile butadiene rubber modified epoxy resin, phenolic resin modified epoxy resin, vibrin modified epoxy, urine aldehyde melamine resin modified epoxy, furfuryl resin modified epoxy, ethenoid resin modified epoxy, isocyanate modified epoxy resin or the silicone resin modified epoxy; Said hydrophobicity resol is one or more in YLENE modified phenolic resins, epoxy resin modification resol or the organic silicon modified phenolic resin.
And hydrophobic resin as previously discussed can obtain through following method modification, and concrete method of modifying is:
With epoxy resin; Like Tetra hydro Phthalic anhydride or maleic anhydride; With oil-soluble monomer copolymerization; Said oil-soluble monomer is: alkyl acrylate; Alkyl methacrylate, any in ethylacrylic acid, vinyl acetate, allyl acetate, sodium vinyl sulfonate, methylvinylether, methallyl ether, dimethylaminoethyl methacrylate, dimethylaminoethyl acrylate, vinylformic acid dimethylamino propyl ester, vinylformic acid diethylin propyl ester, vinylformic acid dimethylamino butyl ester, dimethylaminoethyl methacrylate, the diethylaminoethyl methacrylate.
Perhaps, also can the epoxy resin graft modification be formed graftomer; With the hydrophilic radical of epoxy resin, like hydroxyl, react with hydrophobic function monomer, it is connect; Hydrophobic function monomer is: phenyl aldehyde, korenyl formaldehyde (one big type) utilizes the reaction of hydroxyl and aldehyde radical.
Perhaps, also can epoxy resin be carried out substitution reaction, under the catalyzed reaction of illumination, participate in substitution reaction, halogen received above the epoxy resin, to improve hydrophobic performance with chlorine.
In addition, can add in the said hydrophobic resin film has solidifying agent, and, add different solidifying agent for different resins, wherein, the selection of solidifying agent is specific as follows:
For glycidyl ether based epoxy resin, glycidyl ester based epoxy resin, Racemic glycidol amine epoxy resin, line style aliphatic category epoxy resin, alicyclic based epoxy resin, polysulfide-rubber-modified epoxy, polyamide resin modified epoxy, Z 150PH uncle butyraldehyde modified epoxy, acrylonitrile butadiene rubber modified epoxy resin, phenolic resin modified epoxy resin, vibrin modified epoxy, urine aldehyde melamine resin modified epoxy, furfuryl resin modified epoxy, ethenoid resin modified epoxy, isocyanate modified epoxy resin or silicone resin modified epoxy, preferable solidifying agent is any or several kinds in aliphatic amide, aliphatic cyclic amine, aromatic amine, polymeric amide, acid anhydrides, the tertiary amine;
For YLENE modified phenolic resins, epoxy resin modification resol or organic silicon modified phenolic resin, preferable solidifying agent is a hexamethylenetetramine;
For silicone resin, preferable solidifying agent is dibutyl tin dilaurate or N, N, N', any in the N'-tetramethyl-guanidinesalt or several kinds;
For the hydrophobicity urethane resin, its solidifying agent is the affixture of tolylene diisocyanate TDI and trimethoxy benzylamine pyrimidine TMP, the tripolymer of the prepolymer of TDI and hydroxyl component and the agent of single-component moisture solidification, TDI.
For unsaturated polyester (polymkeric substance of terephthalic acid and terepthaloyl moietie), the solidifying agent that is added during normal temperature is ketone peroxide and cobalt naphthenate; The solidifying agent that is added during heating is one or more in peroxidized t-butyl perbenzoate, peroxy dicarbonate, dialkyl peroxide, the own ester of peroxidation acid uncle and the bis peroxy dicarbonate.
And described lyophobic dust can also be any one or its combination in tetrafluoroethylene, vegetables oil, copper silicon, siloxanes, hydrocarbon and the copolymerization polyvinylidene chloride.Preferably, said hydrocarbon comprises any one or its combination in paraffin, kerosene, diesel oil, crude oil, petroleum distillate, solvent oil and the aliphatic solvents.
Wherein, said lyophobic dust is for being coated on the said particles of aggregates, and said lyophobic dust is coated on method on the said particles of aggregates for spraying, dipping or soak particles of aggregates and in the liquor of lyophobic dust, apply particles of aggregates with chemistry; Perhaps be coated in the particles of aggregates for the thin-film sheet of using hydrophobic property material; Perhaps for the particles of aggregates with heating is positioned in the lyophobic dust, the fusion lyophobic dust is to particles of aggregates; Perhaps the mode for plating, plasma spraying, sputter, fluidisation and powder coated is coated to lyophobic dust on the particles of aggregates.
The preparation method of the said Sheng sand of the utility model container side wall is: with particles of aggregates with pour stirrer into after the hydrophobic sticker mixes and stir; The particles of aggregates that will coat the hydrophobic sticker is then poured the fragment of brick forming mould into; Under 50-120 ℃ of temperature, solidify 2-4h at last, shaping and demoulding gets final product.
The technique scheme of the utility model is compared prior art and is had the following advantages; 1, seepy material is contained in the bottom surface of said Sheng sand container; Form the structure that liquid water molecules can see through; Make that can see through the bottom surface inflow subordinate sand-bed filter of containing the sand container smoothly through the filter sand filtered sewage filters; And because said Sheng sand container is to carry out permeablely through the hole that the modification of particles of aggregates is formed porous, and be not permeable, therefore avoided the suspended particle in the water to stop up the problem that water hole influenced water efficient through the bottom surface water hole; 2, the said mistake in the filter sand also contained seepy material; Help water body to flow through sand-bed filter fast; Avoid storing up water because of flowing into the sand-bed filter that sewage quantity causes when excessive, simultaneously said permutite operational process medium sand surface forms microbial film, the solubility pollutent in the degradation of sewage; 3, the sidewall of said Sheng sand container is that gaseous molecular can see through and the impervious structure of water molecules, can improve the inner air flow of filter sand, helps to improve the life cycle of filter sand; 4, can also plant landscape plant in the said sand-bed filter, beautify the environment on the one hand and improve Air quality, the landscape plant of being planted simultaneously also can decompose elements such as the nitrogen that leaches in the dirt, phosphorus, improves the life cycle of filter sand; 5, said sand filtering device can be selected the quantity that makes up flexibly according to the water quality situation at water source to be filtered, can realize filtration, purification synchronous operation, no matter is that filtration efficiency or dismounting and change are all comparatively convenient, has promoted operational efficiency.
Description of drawings
For the content that makes the utility model is more clearly understood,, the utility model is done further detailed explanation, wherein below according to the specific embodiment of the utility model and combine accompanying drawing
Fig. 1 is the described built-up type sand filtering device of a utility model structural representation.
Reference numeral is expressed as among the figure: the 1-sand-bed filter, and 2-contains the sand container, and 3-crosses filter sand, 4-bracing frame, 5-landscape plant.
Embodiment
As shown in Figure 1; The described built-up type sand filtering device of the utility model; Comprise the some groups of sand-bed filters of vertically arranging 1 from top to bottom, every group of said sand-bed filter 1 comprise the Sheng sand container 2 that has an open cavity and be layed in said Sheng sand container 2 inner cross filter sand 3, and plant the landscape plant of crossing in the filter sand in said 5; Said landscape plant is acid and alkali-resistance, the water-proof emergent of resistant, like reed, Canna generalis Bailey etc.
Seepy material is contained in the bottom surface of said Sheng sand container 2, forms the hole that liquid water molecules is seen through between the said seepy material, and the coefficient of permeability of said Sheng sand container bottoms is (0.1-1.0) * 10
-2M/s.In the said sand-bed filter 1 of two adjacent groups, last one group of said Sheng sand container 2 is (0.2-0.3) * 10 with the difference that next group is stated the coefficient of permeability of containing sand container 2 bottom surfaces
-2M/s.The sidewall of said Sheng sand container 2 has the impervious structure of liquid water molecules.The said mistake in the filter sand 3 also at least partly forms the structure that formation can make liquid water molecules see through by particles of aggregates and hydrophilic agglomerant bonding.
The long-pending sectional area of the opened end section of said Sheng sand container 2 greater than the bottom surface; So that water body after filtering all flows into the said sand-bed filter 1 of lower floor; In the said sand-bed filter 1 of two adjacent groups, the bottom surface sectional area of last one group of said sand-bed filter 1 is long-pending less than next opened end section of organizing said sand-bed filter 1.
In the said sand-bed filter 1 of two adjacent groups; The said particle diameter of crossing filter sand 3 in last one group of said sand-bed filter 1 is organized the said particle diameter of crossing filter sand 3 in the said sand-bed filter 1 greater than next; And the particle diameter of the said filter sand 3 excessively in last one group of said sand-bed filter 1 and the said particle diameter difference of crossing filter sand 3 that next is organized in the said sand-bed filter 1 are the 20-100 order, more elect the 40-70 order as.
Further improvement as the utility model; The sidewall of said Sheng sand container 2 is formed by waterproof and breathable particle and hydrophobic sticker bonding; Forming gas molecule can pass through and the impervious structure of liquid water molecules; Make gas can infiltrate, make that the pollutent that dams in said filter sand excessively is not perishable, help protecting the environment of whole sand filtering device to filtering in the layer of sand.
As the another kind of texture improvement of the utility model, the said sand filtering device of the utility model also comprises multilayer bracing frame 4, and each organizes each layer place that said sand-bed filter 1 places support frame as described above 4 respectively.Each distance of organizing between the said sand-bed filter 1 is 1-10cm, is more preferably 1-5cm, and this structure more helps air flowing between said filtration layer of sand, avoids corruption.
The described seepy material of the utility model comprises: aggregate and sticker, and include hydrophilic agglomerant at least, and the mass percent that used sticker accounts for aggregate is no less than 20%.Sticker in the said sticker except that hydrophilic agglomerant is a resin glue.Said aggregate is a kind of in natural siliceous sand, slag, haydite or the glass microballon or several kinds mixture wherein, and its grain diameter is 0.05-2mm.Said hydrophilic agglomerant is the hydrophilic resin sticker; More excellent is in epoxy resin, urethane and the vinyl resin one or more mixture, the molecular side chain in said epoxy resin, urethane and the vinyl resin contains and contains the non-ionic hydrophilic segment on wetting ability carboxylate salt, sulphonate, ammonium salt, hydroxyl or the main chain.Also be added with aliphatic polyamine or alicyclic polyamine class solidifying agent in the said epoxy resin simultaneously, the mass percent that its consumption accounts for epoxy resin is 60%; Also be added with the Polyurethane curing reaction catalyst in the said urethane resin.Can be added with a spot of mineral binder bond in the described sticker, be added with siliceous, admire or coupling agent, photostabilizer and/or inhibitor, the hydrophilic inorganic material of element such as phosphorus, like in zeyssatite, wilkinite, the perlite one or more.
The sidewall of the said Sheng sand of the utility model container is formed by waterproof and breathable particle and hydrophobic nature sticker bonding, and particularly, this waterproof and breathable particle comprises: the lyophobic dust of aggregate and coating aggregate.Said lyophobic dust in the said waterproof and breathable particle is the hydrophobic resin film.Wherein this hydrophobic resin film forms overlay film in one or more particless of aggregates surface.Said aggregate is preferably one or more in silica sand, slag, haydite or the glass microballon, and its particle diameter is preferably the 6-300 order, is more preferred from the 100-200 order.And in said hydrophobic granule, the quality of said hydrophobic resin film accounts for the 1-8% of aggregate quality.Said hydrophobic resin film is by one or more films that form in hydrophobicity epoxy resin, resol, urethane resin and the silicone resin.Preferably, said hydrophobicity epoxy resin is one or more in glycidyl ether based epoxy resin, glycidyl ester based epoxy resin, Racemic glycidol amine epoxy resin, line style aliphatic category epoxy resin, alicyclic based epoxy resin, polysulfide-rubber-modified epoxy, polyamide resin modified epoxy, Z 150PH uncle butyraldehyde modified epoxy, acrylonitrile butadiene rubber modified epoxy resin, phenolic resin modified epoxy resin, vibrin modified epoxy, urine aldehyde melamine resin modified epoxy, furfuryl resin modified epoxy, ethenoid resin modified epoxy, isocyanate modified epoxy resin or the silicone resin modified epoxy; Said hydrophobicity resol is one or more in YLENE modified phenolic resins, epoxy resin modification resol or the organic silicon modified phenolic resin.
And hydrophobic resin as previously discussed can obtain through following method modification, and concrete method of modifying is:
With epoxy resin; Like Tetra hydro Phthalic anhydride or maleic anhydride; With oil-soluble monomer copolymerization; Said oil-soluble monomer is: alkyl acrylate; Alkyl methacrylate, any in ethylacrylic acid, vinyl acetate, allyl acetate, sodium vinyl sulfonate, methylvinylether, methallyl ether, dimethylaminoethyl methacrylate, dimethylaminoethyl acrylate, vinylformic acid dimethylamino propyl ester, vinylformic acid diethylin propyl ester, vinylformic acid dimethylamino butyl ester, dimethylaminoethyl methacrylate, the diethylaminoethyl methacrylate.
Perhaps, also can the epoxy resin graft modification be formed graftomer; With the hydrophilic radical of epoxy resin, like hydroxyl, react with hydrophobic function monomer, it is connect; Hydrophobic function monomer is: phenyl aldehyde, korenyl formaldehyde (one big type) utilizes the reaction of hydroxyl and aldehyde radical.
Perhaps, also can epoxy resin be carried out substitution reaction, under the catalyzed reaction of illumination, participate in substitution reaction, halogen received above the epoxy resin, to improve hydrophobic performance with chlorine.
In addition, can add in the said hydrophobic resin film has solidifying agent, and, add different solidifying agent for different resins, wherein, the selection of solidifying agent is specific as follows:
For glycidyl ether based epoxy resin, glycidyl ester based epoxy resin, Racemic glycidol amine epoxy resin, line style aliphatic category epoxy resin, alicyclic based epoxy resin, polysulfide-rubber-modified epoxy, polyamide resin modified epoxy, Z 150PH uncle butyraldehyde modified epoxy, acrylonitrile butadiene rubber modified epoxy resin, phenolic resin modified epoxy resin, vibrin modified epoxy, urine aldehyde melamine resin modified epoxy, furfuryl resin modified epoxy, ethenoid resin modified epoxy, isocyanate modified epoxy resin or silicone resin modified epoxy, preferable solidifying agent is any or several kinds in aliphatic amide, aliphatic cyclic amine, aromatic amine, polymeric amide, acid anhydrides, the tertiary amine.
For YLENE modified phenolic resins, epoxy resin modification resol or organic silicon modified phenolic resin, preferable solidifying agent is a hexamethylenetetramine.
For silicone resin, preferable solidifying agent is dibutyl tin dilaurate or N, N, N', any in the N'-tetramethyl-guanidinesalt or several kinds.
For the hydrophobicity urethane resin, its solidifying agent is the affixture of tolylene diisocyanate TDI and trimethoxy benzylamine pyrimidine TMP, the tripolymer of the prepolymer of TDI and hydroxyl component and the agent of single-component moisture solidification, TDI.
For unsaturated polyester (polymkeric substance of terephthalic acid and terepthaloyl moietie), the solidifying agent that is added during normal temperature is ketone peroxide and cobalt naphthenate; The solidifying agent that is added during heating is one or more in peroxidized t-butyl perbenzoate, peroxy dicarbonate, dialkyl peroxide, the own ester of peroxidation acid uncle and the bis peroxy dicarbonate.
And described lyophobic dust can also be any one or its combination in tetrafluoroethylene, vegetables oil, copper silicon, siloxanes, hydrocarbon and the copolymerization polyvinylidene chloride.Preferably, said hydrocarbon comprises any one or its combination in paraffin, kerosene, diesel oil, crude oil, petroleum distillate, solvent oil and the aliphatic solvents.
Wherein, said lyophobic dust is for being coated on the said particles of aggregates, and said lyophobic dust is coated on method on the said particles of aggregates for spraying, dipping or soak particles of aggregates and in the liquor of lyophobic dust, apply particles of aggregates with chemistry; Perhaps be coated in the particles of aggregates for the thin-film sheet of using hydrophobic property material; Perhaps for the particles of aggregates with heating is positioned in the lyophobic dust, the fusion lyophobic dust is to particles of aggregates; Perhaps the mode for plating, plasma spraying, sputter, fluidisation and powder coated is coated to lyophobic dust on the particles of aggregates.
The preparation method of the said Sheng sand of the utility model container side wall is: with particles of aggregates with pour stirrer into after the hydrophobic sticker mixes and stir; The particles of aggregates that will coat the hydrophobic sticker is then poured the fragment of brick forming mould into; Under 50-120 ℃ of temperature, solidify 2-4h at last, shaping and demoulding gets final product.Said hydrophobic nature sticker is a kind of in fluorine-containing epoxy resin sticker, siliceous epoxy adhesive, organosilicon sticker, Polyurethane, alkyd resin and the resol or several kinds mixture wherein.
The described built-up type sand filtering device of the utility model in use; Respectively the filter sand splendid attire of crossing of different-grain diameter is contained in the sand container in each; And can select the specification of the Sheng sand container of splendid attire according to filtering sand grains descending order directly; Dress sand finishes the back according to filtering sand grains footpath order from big to small with top-down each layer place that places said multilayer bracing frame of each sand-bed filter, sewage is top-down flow through each layer sand-bed filter of said sand filtering device after, obtain the water body of accordance with predetermined criteria.In filtration procedure, also can reasonably increase or reduce the number of sand-bed filter according to the contaminated situation of sewage, easy to use and filter effect is better.
As shown in Figure 1; The described built-up type sand filtering device of the utility model; Comprise the some groups of sand-bed filters of vertically arranging 1 from top to bottom; Every group of filter sand 3 excessively that said sand-bed filter 1 comprises the Sheng sand container 2 that has an open cavity and is layed in said Sheng sand container 2 inside, planting in the said landscape plant of crossing in the filter sand 35 is Canna generalis Bailey.Saidly respectively organize each layer place that sand-bed filter 1 places multilayer bracing frame 4 respectively, each distance of organizing between the said sand-bed filter 1 is 1-10cm.The long-pending sectional area of the opened end section of every group of said Sheng sand container 2 greater than the bottom surface; So that water body after filtering all flows into lower floor's sand-bed filter 1, place the long-pending opened end section of opened end section of said Sheng sand container 2 of said multilayer bracing frame 4 lower floors long-pending greater than the said Sheng sand container 2 that places said multilayer bracing frame 4 upper stratas.Place the said particle diameter of crossing filter sand 3 in the said sand-bed filter 1 of said multilayer bracing frame 4 lower floors less than the said particle diameter of crossing filter sand 3 in the said sand-bed filter that places said multilayer bracing frame 4 upper stratas 1; And the particle diameter of the said filter sand 3 excessively in last one group of said sand-bed filter 1 and the said particle diameter difference of crossing filter sand 3 that next is organized in the said sand-bed filter 1 are the 20-100 order; More preferably the 40-70 order is guaranteed the water quality conformance with standard after the process multilayer is filtered step by step.
Seepy material is contained in the bottom surface of said Sheng sand container 2, forms the hole that liquid water molecules is seen through between the said seepy material, and the coefficient of permeability of the bottom surface of said Sheng sand container 2 is (0.1-1.0) * 10
-2M/s, and in the said sand-bed filter 1 of two adjacent groups, last one group of said Sheng sand container 2 is (0.2-0.3) * 10 with the difference that next group is stated the coefficient of permeability of containing sand container 2 bottom surfaces
-2M/s makes sewage to be filtered to be purified through filtering step by step.The sidewall of said Sheng sand container 2 is the impervious structure of liquid water molecules, and said the mistake in the filter sand 3 also at least partly forms the structure that formation can make liquid water molecules see through by particles of aggregates and hydrophilic agglomerant bonding.
The said preparation of crossing filter sand 3 of present embodiment: get 0.2-0.4mm order silica sand 100g; Bisphenol-A epoxy resin 4.6g; Wetting ability epoxy resin 0.46 g, aliphatic polyamine solidifying agent 1.4g, coupling agent are glycidoxy-propyltrimethoxy silane 560:0.12g; Photostabilizer UV-320:0.012g and antioxidant 1010: 0.006g and perlite powder 1g mix and solidify and get final product.
The preparation of the said Sheng sand of present embodiment container 2 bottom surfaces: pour the above-mentioned each item material mixing that prepared filter sand into the forming mould bottom after evenly, under 50-120 ℃ of temperature, solidify 2-4h, shaping and demoulding gets final product.
The preparation of the said Sheng sand of present embodiment container 2 sidewalls: pour stirrer into after getting haydite and the fluorine-containing epoxy resin sticker mixing and stir; Pour mixed mixture into the fragment of brick forming mould then; Under 50-120 ℃ of temperature, solidify 2-4h at last, shaping and demoulding gets final product.
The structure of the described sand-bed filter 1 of present embodiment is said identical with embodiment 1, and said landscape plant 5 is a reed.The said sand-bed filter 1 of respectively organizing is from up to down vertically arranged, and the distance between the said sand-bed filter of each layer is 1-5cm.The sidewall of said Sheng sand container 2 is formed by waterproof and breathable particle and hydrophobic sticker bonding; Form gas molecule can through and the impervious structure of liquid water molecules, form between the adjacent said waterproof and breathable particle gas molecule can through and the hole of the impervious 0.01-0.2mm of liquid water molecules.
The said preparation of crossing filter sand 3 of present embodiment: get 0.2-0.7mm order silica sand 10Kg, sticker is to contain through the vinyl resin 600g of base and 75% HDI biuret 200g, wetting ability epoxy resin 6g; Cement 1g; Silicate 5g, silane coupling agent 550:3g, photostabilizer UV-326:0.6g and antioxidant 1010: 0.9g; Curing reaction catalyst is 0.5% lead naphthenate solution 0.5g, dibutyl tin laurate 0.9g, mixes and solidify to get final product.
The preparation of the bottom surface of the said Sheng sand of present embodiment container 2: pour the above-mentioned each item material mixing that prepared filter sand into the forming mould bottom after evenly, under 50-120 ℃ of temperature, solidify 2-4h, shaping and demoulding gets final product.
The preparation of the said Sheng sand of present embodiment container 2 sidewalls: pour stirrer into after getting glass microballon and siliceous epoxy adhesive mixing and stir; Pour mixed mixture into the fragment of brick forming mould then; Under 50-120 ℃ of temperature, solidify 2-4h at last, shaping and demoulding gets final product.
Said waterproof and breathable particle comprises particles of aggregates and is coated in the hydrophobicity epoxy resin on the said particles of aggregates.Said particles of aggregates be silica sand and glass microballon with weight ratio 6:1 mixture, the particle diameter of said silica sand is 0.075-0.3 mm, the particle diameter of glass microballon is 0.04-0.15 mm.Said hydrophobicity epoxy resin is the 5wt% of particles of aggregates.Said hydrophobicity epoxy resin is to be made by maleic anhydride and phenyl aldehyde graft copolymerization.
The method that said hydrophobicity epoxy resin is coated on the said particles of aggregates is:
1) hydrophobicity epoxy resin is heated to molten state;
When 2) particles of aggregates being heated to 220 ℃, add said epoxy resin, 60 seconds stirring and evenly mixings make said resol be dispersed in said particles of aggregates surface;
3) fatty amine solidifying agent (accounting for the 10wt% of particles of aggregates) is added in the above-mentioned mixture for preparing, stirring and evenly mixing solidified 120 seconds;
4) stearic amide lubricant (accounting for the 1.25wt% of particles of aggregates) is added in the mixture that is cured, stir, cooling is sieved, and promptly gets.
The structure of the described sand filtering device of present embodiment is identical with embodiment 1.The sidewall of said Sheng sand container 2 is formed by waterproof and breathable particle and hydrophobic sticker bonding; Form gas molecule can through and the impervious structure of liquid water molecules, form between the adjacent said waterproof and breathable particle gas molecule can through and the hole of the impervious 0.05-0.2mm of liquid water molecules.
The said preparation of crossing filter sand 3 of present embodiment: get 0.2-0.4mm haydite 15Kg, tackiness agent be 70% 650 gather the HDI of vinegar solution 600g and 75% biuret solution 560g, zeyssatite 10g, wetting ability epoxy resin 360g, cement 10g; Add silane coupling agent 550:5g, photostabilizer UV-327:0.6g; Oxidation inhibitor 1222:0.9g, zinc naphthenate 1.8g; Chainextender and linking agent are three light methylpropane 20g, mix and solidify to get final product.
The preparation of the said Sheng sand of present embodiment container 2 bottom surfaces: pour the above-mentioned each item material mixing that prepared filter sand into the forming mould bottom after evenly, under 50-120 ℃ of temperature, solidify 2-4h, shaping and demoulding gets final product.
The preparation of the said Sheng sand of present embodiment container 2 sidewalls: pour stirrer into after getting slag and phenolic resin adhesive mixing and stir; Pour mixed mixture into the fragment of brick forming mould then; Under 50-120 ℃ of temperature, solidify 2-4h at last, shaping and demoulding gets final product.
Said waterproof and breathable particle comprises particles of aggregates and is coated on the hydrophobicity resol on the said particles of aggregates; Said particles of aggregates is that silica sand and glass microballon are with weight ratio 5:1 mixture; The particle diameter of said silica sand is 0.075-0.3 mm, and the particle diameter of glass microballon is 0.04-0.15 mm.Said hydrophobicity resol is the 1wt% of particles of aggregates.Said hydrophobicity resol is to be made by maleic anhydride and sodium vinyl sulfonate copolymerization.
The method that said resol is coated on the said particles of aggregates is:
1) resol is heated to molten state;
When 2) particles of aggregates being heated to 220 ℃, add said resol, 60 seconds stirring and evenly mixings make said resol be dispersed in said particles of aggregates surface;
3) fatty amine solidifying agent (accounting for the 10wt% of particles of aggregates) is added in the above-mentioned mixture for preparing, stirring and evenly mixing solidified 120 seconds;
4) stearic amide lubricant (accounting for the 1.25wt% of particles of aggregates) is added in the mixture that is cured, stir, cooling is sieved, and promptly gets.
The structure of the described sand filtering device of present embodiment is identical with embodiment 1, and 3 layers of sand-bed filter are set filter sewage step by step.The said order number of crossing filter sand 3 is followed successively by 24*40 order, 40*70 order and 70*140 order in the said sand-bed filter 1 of each layer from top to bottom.To handle sewage is example, and residence time 5h in said sand filtering device calculates with sewage, move 1 month continuously after, the water quality situation of its influent quality and water outlet sees the following form:
| Water inlet (mg/L) | Water outlet (mg/L) | |
| COD | 342 | 26 |
| Ammonia nitrogen | 28 | Do not detect |
| SS | 280 | Do not detect |
Can know that from last table the described sand filtering device of the utility model pollutes the removal situation and is: COD>90%, < 10mg/L, the clearance of NH3-N reach the standard that the cities and towns water body is handled the SS≤20mg/L of secondary standard up to more than 95% to the SS of water outlet, and the scrubbing effect is better.
Obviously, the foregoing description only be for explanation clearly done for example, and be not qualification to embodiment.For the those of ordinary skill in affiliated field, on the basis of above-mentioned explanation, can also make other multi-form variation or change.Here need not also can't give exhaustive to all embodiments.And conspicuous variation of being extended out thus or change still are among the protection domain of the invention.
Claims (9)
1. built-up type sand filtering device; It is characterized in that: said sand filtering device comprises some groups of sand-bed filters (1) from top to bottom; The filter sand (3) excessively that every group of said sand-bed filter (1) comprises the Sheng sand container (2) that has an open cavity and be layed in said Sheng sand internal tank; Seepy material is contained in the bottom surface of said Sheng sand container (2); Form the hole that liquid water molecules is seen through between the said seepy material, during said sand filtering device operation, said sand-bed filter filtered sewage flow to the said sand-bed filter of lower floor and further filters through the upper strata.
2. built-up type sand filtering device according to claim 1 is characterized in that: the coefficient of permeability of said Sheng sand container (2) bottom surface is (0.1-1.0) * 10
-2M/s.
3. built-up type sand filtering device according to claim 2 is characterized in that: in the said sand-bed filter of two adjacent groups (1), last one group of said Sheng sand container (2) is (0.2-0.3) * 10 with the difference that next group is stated the coefficient of permeability of containing sand container (2) bottom surface
-2M/s.
4. built-up type sand filtering device according to claim 3 is characterized in that: the long-pending sectional area greater than the bottom surface of the opened end section of said Sheng sand container (2).
5. built-up type sand filtering device according to claim 4 is characterized in that: in the said sand-bed filter of two adjacent groups (1), the bottom surface sectional area of last one group of said sand-bed filter (1) is long-pending less than next opened end section of organizing said sand-bed filter (1).
6. according to the arbitrary described built-up type sand filtering device of claim 1-5; It is characterized in that: in the said sand-bed filter of two adjacent groups (1), the said particle diameter of crossing filter sand (3) in last one group of said sand-bed filter (1) is organized the said particle diameter of crossing filter sand (3) in the said sand-bed filter (1) greater than next.
7. built-up type sand filtering device according to claim 6; It is characterized in that: in the said sand-bed filter of two adjacent groups (1), the said particle diameter difference of crossing filter sand (3) that the particle diameter of the said filter sand (3) excessively in last one group of said sand-bed filter (1) and next are organized in the said sand-bed filter (1) is the 20-100 order.
8. built-up type sand filtering device according to claim 7 is characterized in that: said sand filtering device also comprises multilayer bracing frame (4), and each organizes each layer that said sand-bed filter (1) places support frame as described above (4) respectively.
9. built-up type sand filtering device according to claim 8 is characterized in that: each distance of organizing between the said sand-bed filter (1) is 1-10cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201038050U CN202156972U (en) | 2011-04-11 | 2011-04-11 | Combination sand filter device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201038050U CN202156972U (en) | 2011-04-11 | 2011-04-11 | Combination sand filter device |
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| Publication Number | Publication Date |
|---|---|
| CN202156972U true CN202156972U (en) | 2012-03-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201038050U Expired - Fee Related CN202156972U (en) | 2011-04-11 | 2011-04-11 | Combination sand filter device |
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| CN (1) | CN202156972U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105130134A (en) * | 2015-09-29 | 2015-12-09 | 泗县峻林机械有限公司 | Water filtration sand remover |
-
2011
- 2011-04-11 CN CN2011201038050U patent/CN202156972U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105130134A (en) * | 2015-09-29 | 2015-12-09 | 泗县峻林机械有限公司 | Water filtration sand remover |
| CN105130134B (en) * | 2015-09-29 | 2017-06-16 | 泗县峻林机械有限公司 | Water filtration desander |
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