CN202829718U - Scale inhibition device - Google Patents
Scale inhibition device Download PDFInfo
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- CN202829718U CN202829718U CN 201220393839 CN201220393839U CN202829718U CN 202829718 U CN202829718 U CN 202829718U CN 201220393839 CN201220393839 CN 201220393839 CN 201220393839 U CN201220393839 U CN 201220393839U CN 202829718 U CN202829718 U CN 202829718U
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- organophosphorus
- water
- filter material
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- phosphate
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Abstract
The utility model provides a scale inhibition device which comprises a tank body, a water inlet, a water outlet, an organic phosphorus filter layer, a ceramic filter layer and a polyphosphate filter layer, wherein the organic phosphorus filter layer, the ceramic filter layer and the polyphosphate filter layer are located in the tank body. The organic phosphorus filter layer contains organic phosphorus filtering materials which are particle filtering materials of slow-release liquid organic phosphorus scale inhibitors, and the ceramic filter layer contains ceramic filtering materials which are particle filtering materials containing oxide ceramic powder.
Description
Technical field
The utility model relates to a kind of antisludging equipment, and described antisludging equipment can be used for that the water that enters water-heater is carried out scale inhibition to be processed.
Background technology
In order to prevent the water fouling in the water-heater, can carry out scale inhibition to the water in the water-heater and process.At present, the chemical complexing masking method is one of method of relative efficiency.
Chemical complexing sequestering agent method claims again the Scale inhibitors method.Scale inhibitors commonly used comprises poly-phosphate, organophosphorus and polycarboxylic acid Scale inhibitors etc.Poly-phosphate once was used as corrosion inhibiting and descaling agent for a long time.Poly-phosphate is the condensation polymer of orthophosphoric acid salt.Commonly used in the Handling of Stabilizing Water Quality have a tripoly phosphate sodium STPP (Na
5P
3O
10) and Sodium hexametaphosphate 99 (Na
6P
6O
18), the former dosage is generally at 2～5mg/L; The latter is generally at 1～5mg/L.Increase consumption, not only do not have better effect, on the contrary can be because having surpassed the solubleness of poly-phosphate in water, and white precipitate appears.The solubleness of commercially available poly-phosphate is generally about 4ppm.Poly-phosphate can also form protective membrane in the metallic surface under certain condition in addition, plays corrosion inhibition.The organophosphorus Scale inhibitors comprises that methylenephosphonic acid salt is (such as ethylene diamine tetra methylene phosphonic acid salt, abbreviation EDTMP; Amino Trimethylene Phosphonic Acid salt, be called for short ATMP) and diphosphonate (such as 1-hydroxyl-ethylidene-1,1 diphosphonate, being called for short HEDP) two large organophosphorus Scale inhibitorss have not facile hydrolysis, can adapt to the advantages such as wider pH range, scale inhibition effect is good, thermostability is strong, dosage is low, and have the function of scale inhibition and inhibition concurrently.Its dosage one at 1～5mg/L.The polycarboxylic acid Scale inhibitors mainly is anionic, uses at present wider have sodium polyacrylate, polyacrylic acid and polymaleic acid etc.The consumption of the dirty agent of polycarboxylic acid sun is generally at 1～5mg/L.
At present, poly-phosphate can be used as the use of poly-phosphate filtrate.The poly-phosphate filtrate mainly refers to the polyphosphate glass ball among the application.Also can use other any type of poly-phosphate particles.The poly-phosphate filtrate can openly be buied from the market.For example, the Nikkor of Beijing three letters and the sale of chemical development poly-phosphate company limited
The Si-P crystal product, its chemistry calcium-sodium poly phosphate by name, main component is that polyphosphoric acid is received and calcium oxide.In addition, also comprise the nikry board product of Korea S Athos science and technology Co., Ltd. and the niphos board product of Korea S three enrichment Co., Ltd., these products all can be buied from the market.The poly-phosphate filtrate has problems, and it is higher from dissolubility, when being contained in the container, as long as water is arranged, even steam is arranged, and it all can dissolve.Thereby no matter whether in effective use, it is all consuming, so the life-span only has about half a year usually.Determined by single poly-phosphate filtrate autolysis speed this work-ing life.Add many again amounts, each poly-phosphate filtrate can simultaneously all in dissolving, can not increase the life-span yet.Another problem is under some condition of water quality, and poly-phosphate can not normally use basically, and reason is in this water quality, and when temperature raise, poly-phosphate can resolve into rapidly positive phosphorus, produces white precipitate.At this moment, the poly-phosphate filtrate has not been poly-phosphate, no longer possesses the complexing masking performance to calcium ions and magnesium ions, can generate the phosphoric acid salt incrustation scale on the contrary, causes larger fouling trouble.Larger shortcoming is, the autolysis of poly-phosphate filtrate consumes excessively under the hydrostatic state, and its solubleness in water is very low, when dissolving surpasses finite concentration certainly, just occurs a large amount of precipitations in its container of splendid attire, is easy to cause that water becomes mixed problem.Three of shortcoming is that the problem of growing of bacterium is not resolved yet, and owing to not sterilizing means, in the situation that hydrostatic easily accelerates the breeding of bacterium, makes the aqueous metamorphism in the container, even smelly.
In addition, the applicant also finds, the water quality difference of different areas is very large on the scale inhibition effect impact of Scale inhibitors.Same Scale inhibitors can play good scale inhibition effect in for example Xuzhou Area.But in Kweiyang, then can not obtain satisfied scale inhibition effect.
The utility model content
The utility model is intended to address the above problem.The utility model has solved the problems referred to above by using simultaneously ceramic filter material, poly-phosphate filtrate and organophosphorus filtrate as the associating Scale inhibitors.Simultaneously, the utility model provides a kind of antisludging equipment that uses above-mentioned associating Scale inhibitors.
The utility model has overcome defects of the prior art by organophosphorus filtrate and ceramic filter material and poly-phosphate filtrate are united use.But the organophosphorus Scale inhibitors is generally liquid, can't be directly and ceramic filter material and poly-phosphate filtrate unite use; therefore; the utility model carries out granulating to the organophosphorus Scale inhibitors, is made into the granule filter material of slowly-releasing, thereby has solved technical problem of the present utility model.Particularly, the utility model comprises following aspect.
1. antisludging equipment, described antisludging equipment comprises tank body, water inlet, water outlet and is arranged in the organophosphorus filter material layer of described tank body, the ceramic filtering bed of material and poly-phosphate filter material layer, described organophosphorus filter material layer contains the organophosphorus filtrate, the granule filter material of the liquid organophosphorus Scale inhibitors that described organophosphorus filtrate is slowly-releasing, the described ceramic filtering bed of material contains ceramic filter material, and described ceramic filter material is the granule filter material that comprises oxide ceramic powder.
2. such as the described antisludging equipment in the 1st aspect, wherein said antisludging equipment also comprises water layer.
3. as the described antisludging equipment in the 1st aspect, wherein in weight ratio, the ceramic filtering bed of material: poly-phosphate filter material layer: organophosphorus filter material layer=2～8: 2～4: 1～3.
4. such as the described antisludging equipment in the 1st aspect, wherein along the direction from water inlet and water outlet, in tank body, arrange respectively the described ceramic filtering bed of material, poly-phosphate filter material layer and organophosphorus filter material layer.
5. such as the described antisludging equipment in the 1st aspect, wherein in the described ceramic filtering bed of material, poly-phosphate filter material layer and organophosphorus filter material layer between the adjacent two layers and water inlet and water outlet have filtration unit, preferred described filtration unit is filter cloth, and more preferably the filter cloth between described poly-phosphate filter material layer and organophosphorus filter material layer is thicker than other filter clothes.
6. as the described antisludging equipment in the 1st aspect, wherein said ceramic filter material prepares with following method: the roasting natural crystal obtains oxide ceramic powder, with described oxide ceramic powder with the calcining furnace dust and/or fly ash in electric power plant mixes and carry out granulation.
7. as the described antisludging equipment in the 1st aspect, consisting of of wherein said ceramic filter material: CaO:20～60; MgO:30～90; SiO
2: 1～40; Al
2O
3: 0.3～20; ZnO:0～15; TiO
2: 0～15; Fe
2O
3: 0.1～1; SO
2: 0.1～2; K
2O:0～3.0; Na
2O:0～0.6 is preferably CaO:30～60; MgO:35～55; SiO
2: 1～20; Al
2O
3: 0.3～15; ZnO:1～10; TiO
2: 0.1～3; Fe
2O
3: 0.1～0.5; SO
2: 0.1～2; K
2O:0～3.0; Na
2O:0～0.6.
8. such as the described antisludging equipment in the 1st aspect, wherein said liquid organophosphorus Scale inhibitors is to be selected from least a in the organic multicomponent phosphinic acid compounds, be preferably methylene phosphonic acid type liquid organophosphorus Scale inhibitors (Amino Trimethylene Phosphonic Acid, ethylenediamine tetramethylene phosphonic acid, diethylenetriamine pentamethylene phosphonic acids), (comprise 1-hydroxyl-ethylidene-1 with carbon diphosphine acid type liquid organophosphorus Scale inhibitors, the 1-di 2 ethylhexyl phosphonic acid, 1-amino-ethylidene-1, the 1-di 2 ethylhexyl phosphonic acid) and carboxy phosphonic acid type liquid organophosphorus Scale inhibitors (2-phosphonate group-1,2,4-tri carboxyl butane) at least a in.
Description of drawings
Fig. 1 is the structural representation of the antisludging equipment that only uses the organophosphorus filter material layer of Comparative Examples 1;
Fig. 2 is the structural representation of uniting the antisludging equipment that uses the ceramic filtering bed of material and organophosphorus filter material layer of Comparative Examples 2;
Fig. 3 is the structural representation of uniting the antisludging equipment that uses the ceramic filtering bed of material, organophosphorus filter material layer and poly-phosphate filter material layer of embodiment 1.
In the accompanying drawings, identical parts represent with identical Reference numeral.Wherein, 1 expression tank body; 2 expression water-ins; 3 express the mouth of a river; The 4 expression ceramic filtering bed of materials; 5 expression poly-phosphate filter material layers; 6 expression organophosphorus filter material layers; 7 expression water layers; 8 expression baffle plates.
Embodiment
The below is elaborated to the utility model.In this application, except as otherwise noted, the ratio of mentioning is weight ratio.
The applicant studies discovery, and the factor that affects the poly-phosphate hydrolysis rate has: 1) temperature, when temperature raise, hydrolysis was accelerated.When water temperature surpasses 30～40 ℃, and in some catalysis because of under the Suo Zuoyong, sodium polyphosphate can occur be hydrolyzed significantly in a few hours (even several minutes in); 2) pH value, when the pH value was low, hydrolysis was accelerated.When pH=6.5～7.5, be hydrolyzed basicly stable; 3) existence of fungus algae microorganism can make hydrolysis accelerate.Wherein, poly-phosphate Scale inhibitors poor heat stability is the major obstacle that it is used.Hence one can see that, and the impact that the consumption of poly-phosphate is subject to the factors such as water quality, water temperature, pH value and the water yield is larger.
In order to prevent the too fast consumption of poly-phosphate, among the application poly-phosphate filtrate and ceramic filter material and organophosphorus filtrate are used in combination.
Ceramic filter material is the granule filter material that comprises oxide ceramic powder.The characteristics of ceramic filter material are to meet water to discharge active oxygen.The release of active oxygen is confirmed by chemiluminescent check.Because active oxygen has extremely strong oxidation capacity, can make the poly-phosphate filtrate that passivation occurs in stationary water, so that dissolution rate obviously slows down.In addition, the active oxygen self that ceramic filter material discharges has sterilization algae removal, reduces the function of chemical oxygen demand (COD) index in the water, simultaneously can the pollution in other respects of establishment water quality, pollute heavy metal contamination, chlorine pollution etc. such as micro-content organism.Active oxygen is accompanied by the hydrolytic process of ceramic filter material and generates, and the sign of this process is that the pH value of the aqueous solution rises.
The preparation method of ceramic filter material is as follows.The roasting natural crystal, described natural crystal can for being selected from least a in magnesite ore, rhombspar, zeolite, illite and the medical stone, obtain oxide ceramic powder.In case of necessity, can add a certain proportion of TiO
2And/or ZnO regulates the composition of oxide ceramic powder.Can be with N-BUTYL ACETATE or the diacetone alcohol solution of vinylformic acid organic resin, or acrylic acid water-based emulsion etc. carries out surface treatment to resulting ceramic powder.This oxide ceramic powder is mixed with calcining furnace dust and/or fly ash in electric power plant, add alternatively other additives, carry out granulation, the ceramic filter material particle that obtains.When the calcining furnace dust refers to that natural crystal is sintered into refractory materials, the dust that reclaims from the calcining kiln outlet.Fly ash in electric power plant refers to from the dust of the throat collection of fuel-burning power plant steam boiler.Source to calcining furnace dust and fly ash in electric power plant is not particularly limited, as long as the ceramic filter material that obtains can satisfy following composition, and does not affect the effect that ceramic filter material discharges active oxygen and gets final product.The example of other additives can comprise titanium dioxide, reduced iron powder, zinc oxide and activated carbon powder etc.Ceramic filter material of the present utility model can be the sintering filtrate, also can be non-sintered filtrate.As non-sintered filtrate, when granulation, can add binding agent.Binding agent can be the N-BUTYL ACETATE solution of acrylic resin or water-borne acrylic resin aqueous solution etc.Non-sintered ceramic filter material also can directly use the granulations such as pure water or tap water.This ceramic filter material particle is dried, under 110～260 ℃ temperature, toasted 0.5～5 hour.Subsequently ceramic filter material is immersed in the water 0.5～20 hour, to clean and maturation process.Under 110～160 ℃ temperature, ceramic filter material was dried 1～5 hour at last.Ceramic filter material consist of CaO:20～60; MgO:30～90; SiO
2: 1～40; Al
2O
3: 0.3～20; ZnO:0～15; TiO
2: 0～15; Fe
2O
3: 0.1～1; SO
2: 0.1～2; K
2O:0～3.0; Na
2O:0～0.6.Its composition is preferably: CaO:30～60; MgO:35～55; SiO
2: 1～20; Al
2O
3: 0.3～15; ZnO:1～10; TiO
2: 0.1～3; Fe
2O
3: 0.1～0.5; SO
2: 0.1～2; K
2O:0～3.0; Na
2O:0～0.6.As the sintering filtrate, can obtain by the ceramic filter material particle after the granulation is at high temperature carried out sintering.The preparation method of ceramic filter material can be referring to CN101565299A.The preparation method of the oxide ceramic powder that uses in the ceramic filter material can be referring to CN101565298A and CN101450856B.
The granule filter material of the liquid organophosphorus Scale inhibitors that organophosphorus filtrate of the present utility model is slowly-releasing.The organophosphorus Scale inhibitors is generally liquid, in order to realize technique effect of the present utility model, liquid organophosphorus Scale inhibitors need to be made solid particulate (filtrate), so that it has slow-release function, should guarantee scale inhibition effect, guarantee to strengthen again the stability of poly-phosphate, control simultaneously the burst size of organophosphorus filtrate, make it have sufficiently long work-ing life.In addition, need also to guarantee that the organophosphorus filtrate itself has water tolerance, the variation of release rate is less, and burst size keeps uniformity consistency in time as far as possible.And the interpolation of organophosphorus filtrate can not cause that sacrificial magnesium alloy anode consumes too much in water-heater.In addition, the organophosphorus filtrate also will make the raising of filtered water scale-inhibiting properties, cost taken by themselves is cheap and the life-span is lasting.
The granule filter material of the liquid organophosphorus Scale inhibitors of slowly-releasing can be for example with by the following method preparation, said method comprising the steps of: 1. phosphatizing step: wherein liquid organophosphorus Scale inhibitors and porous material are mixed mutually also drying; 2. pulverising step: obtain powder thereby wherein the gained mixture is pulverized; 3. first surface encapsulation steps: wherein use the first coating that comprises Resins, epoxy or acrylic resin that described powder is carried out surface and coat processing; 4. mixing step: wherein the powder that coats through first surface after processing is mixed with powder with the water tolerance enhancing; 5. granulation step: wherein mixed powder is carried out granulation; 6. water tolerance strengthens and use the powder encapsulation steps: wherein after granulation later stage or granulation finish, use water tolerance to strengthen with powder particle is carried out surface coating processing; 7. baking procedure: wherein the particle of producing is toasted; 8. second surface encapsulation steps: wherein use the particle of the second coating after to baking that comprises Resins, epoxy or acrylic resin to carry out surface and coat processing, and carry out drying, obtain thus the granule filter material of the liquid organophosphorus Scale inhibitors of slowly-releasing.
Wherein, in the phosphatizing step, can also use as required the polycarboxylic acid Scale inhibitors.Phosphatizing step and second surface encapsulation steps all can be carried out one or many according to actual needs, thereby obtain suitable phosphatizing amount, suitable intensity, suitable water tolerance and suitable organophosphorus release rate.The phosphatizing step is preferably carried out 1～3 time, and the second surface encapsulation steps is preferably carried out 1～5 time.
In the utility model, organophosphorus is seeped in the inorganic porous material, use inorganic porous material storage organophosphorus, be conducive to the slow release of organophosphorus.Liquid organophosphorus Scale inhibitors can be selected from the organic multicomponent phosphinic acid compounds, comprises methylene phosphonic acid type liquid organophosphorus Scale inhibitors (Amino Trimethylene Phosphonic Acid ATMP, ethylenediamine tetramethylene phosphonic acid EDTMP, diethylenetriamine pentamethylene phosphonic acids DETPMP); With carbon diphosphine acid type liquid organophosphorus Scale inhibitors (comprising 1-hydroxyl-ethylidene-1,1-di 2 ethylhexyl phosphonic acid HEDP, 1-amino-ethylidene-1,1-di 2 ethylhexyl phosphonic acid AEDP); And carboxy phosphonic acid type liquid organophosphorus Scale inhibitors (2-phosphonate group-1,2,4-tri carboxyl butane PBTCA).In described phosphatizing step, liquid organophosphorus Scale inhibitors can use jointly with lower molecular weight polycarboxylic acid Scale inhibitors.Described lower molecular weight polycarboxylic acid Scale inhibitors can be selected from least a in sodium polyacrylate, polyacrylic acid and the polymaleic acid etc.Inorganic porous material can be selected from gac, hydroxyapatite and zeolite etc.Inorganic porous material can use with stopping composition.Described stopping composition is to be selected from titanium dioxide, calcined aluminosilicate, quartz sand and the talcum powder one or more.In the phosphatizing step, liquid organophosphorus Scale inhibitors can be the form of the aqueous solution, and the concentration of liquid organophosphorus Scale inhibitors is not particularly limited, and the concentration of preferred liquid organophosphorus Scale inhibitors is more than 50%.After the combination drying, being adsorbed on organophosphorus Scale inhibitors on the porous material and the ratio of porous material can suitably select, and preferably its weight ratio is 0.5: 9.5～4: 1, is preferably 1: 2～2: 1, more preferably 1: 1.If one time the phosphatizing step can't reach aforementioned proportion, can carry out repeatedly phosphatizing step.
In pulverising step, powder can be crushed to the 20-200 order.By pulverizing, can make powder expose the without phosphorus section of himself.
In described first surface encapsulation steps, comprise in the first coating of Resins, epoxy and also comprise solidifying agent and thinner, preferred epoxy: solidifying agent: thinner=1: 0.1～0.3: 0.2～5.Comprise in the first coating of acrylic resin and also comprise thinner, preferred acrylic resins: thinner=1: 0.2～5.In the first surface encapsulation steps, surperficial coating can for example be undertaken by powder being immersed in the first coating solution.Resins, epoxy can use solvent epoxy varnish such as Resins, epoxy E44 or aqueous epoxy resins.Acrylic resin can use water-borne acrylic resin, such as MC water-borne acrylic resin series or water-borne acrylic resin RW series.Aqueous epoxy resins and water-borne acrylic resin can make water as thinner.Solvent epoxy varnish can use dehydrated alcohol and diacetone alcohol as thinner.For Resins, epoxy, preferably add solidifying agent, aqueous epoxy resins can use dicyandiamide, and solvent epoxy varnish can use polynary amine or derivatives thereof.By this first surface encapsulation steps, can set up the blocking layer, this blocking layer also is the back-up coat of particle after the in the future granulation simultaneously.This back-up coat is as water-fast network, can make filtering material particle keep particulate state in water and can not scatter, thereby prevent that the position of containing organophosphorus from throwing off mutually because of the dissolving of organophosphorus.This step can be carried out one or many according to actual needs.
In mixing step, can obtain the powder for granulation.Mixing step strengthens with the powder encapsulation steps with water tolerance can use identical water tolerance enhancing powder.Water tolerance strengthens the mixture that can be comprised of at least two kinds in calcined aluminosilicate, titanium dioxide and the quartz sand with powder, wherein calcined aluminosilicate: quartz sand: titanium dioxide=(4～0): (8～1): 1, and in weight ratio.For realizing the purpose of this utility model, those skilled in the art also can select other suitable water tolerance to strengthen and use powder.Use the ratio of mixture of powder to be 4 through powder and the enhancing of described water tolerance that first surface coats after processing: (1～4).Use powder by adding the water tolerance enhancing, can improve the water tolerance of organophosphorus filtrate.
In granulation step, can use binding agent.Kind to binding agent is not particularly limited.Can use the binding agent that comprises Resins, epoxy and/or acrylic resin.Can use simultaneously solidifying agent and thinner when using Resins, epoxy.Solidifying agent is not particularly limited, can uses solidifying agent known in the art.For example, aqueous epoxy resins can use dicyandiamide as solidifying agent, and solvent epoxy varnish can use polynary amine or derivatives thereof as solidifying agent.Thinner is not particularly limited, can uses to be selected from least a in dehydrated alcohol, diacetone alcohol and the water.The ratio of resin, solidifying agent and thinner can be the portions of resin solidifying agent: thinner=1: 0.1～0.3: 0.2～5.Comprising in the tackiness agent of acrylic resin and can also comprise thinner, acrylic resin: thinner is preferably 1: 0.2～and 5.When using water-borne acrylic resin, only need thin up to get final product.Using the advantage of aqueous binders is easy to operate and environmental protection.Using the advantage of solvent-borne type binding agent is that granulation is solid and intensity is higher.
After granulation later stage or granulation end, can use water tolerance to strengthen with powder particle is carried out surface coating processing, be i.e. water tolerance enhancing powder encapsulation steps.This step can provide the intensity of filtering material particle, increases simultaneously the organophosphorus diffusional resistance, slows down the organophosphorus release rate.This step can be carried out one or many according to actual needs.
Baking procedure can carry out in vacuum drying oven, and temperature can be 120-170 ℃, and storing time can be 1-10 hour.
Can carry out the second surface encapsulation steps to the particle after the baking, surperficial coating can for example be undertaken by powder being immersed in the second coating solution.Described the second coating can be identical with described the first coating.That is, comprise in the second coating of Resins, epoxy and also comprise solidifying agent and thinner, preferred epoxy: solidifying agent: thinner=1: 0.1～0.3: 0.2～5; Comprise in the second coating of acrylic resin and also comprise thinner, preferred acrylic resins: thinner=1: 0.2～5; Also comprise alternatively filler in described the second coating, described filler by calcined aluminosilicate, titanium dioxide, carbon black, wilkinite, aluminium triphosphate with 5～10: 1: 0.01～0.5: 0.1～1: 0.1～1 ratio forms, portions of resin solidifying agent: thinner: filler=1: 0.1～0.3: 0.2～5: 0.1～2.This step can be carried out one or many according to actual needs.By the second surface encapsulation steps, in the time of can guaranteeing that filtering material particle soaks in water, until the organophosphorus major part spreads out, filtering material particle still can guarantee the integrity of self.
The organophosphorus filtrate that finally obtains can guarantee that organophosphorus slowly discharges in water in particle, other organic or inorganic thing all is not dissolved in the water, so that form a net that is formed by organic resin in the filtering material particle, organophosphorus is separated, and, this net is connected with the organic resin layer on top layer in the surface, the life-span of common guarantee filtering material particle and even release rate.
The utility model also provides a kind of antisludging equipment.Described antisludging equipment comprises tank body and is arranged in organophosphorus filter material layer, the ceramic filtering bed of material and the poly-phosphate filter material layer of described tank body.Described antisludging equipment can also comprise water layer.
Have water inlet and water outlet at described tank body.The position of water inlet and water outlet can be designed as required, can have one or more water inlets and water outlet.For example, can have 2 water outlets, one is used for leading to water-heater, and one is used for cold water.Usually water inlet is positioned at the sidepiece of bottom or the close bottom of tank body, and water outlet then is positioned at the sidepiece at top or the close top of tank body.The ceramic filtering bed of material: poly-phosphate filter material layer: organophosphorus filter material layer=(2～8): (2～4): (1～3), in weight ratio.The ceramic filtering bed of material, poly-phosphate filter material layer and organophosphorus filter material layer can be arranged on the perforated baffle.Gap between each layer can form water layer.Between each layer, with water inlet and water outlet filtration unit can be set.This filtration unit is not particularly limited, can be selected from this areas such as filter cloth and filter screen filtration unit commonly used.The stronger filtration unit of filterableness can be set between poly-phosphate filter material layer and organophosphorus filter material layer, for example can use than the thicker filter cloth of filter cloth between water inlet and water outlet and other layers, thus prevent two kinds of filtrates particularly the organophosphorus filtrate to the interference of poly-phosphate filtrate.Therefore this be in the situation that hydrostatic, sour environment can accelerate the dissolving of poly-phosphate filtrate, use thicker filter cloth, pressure applies from poly-phosphate filter material layer side direction organophosphorus filter material layer side in addition, can slow down to a certain extent sour water to the reverse osmosis of poly-phosphate filter material layer side, reduce the dissolving consumption of poly-phosphate filtrate.The total volume of antisludging equipment can be selected according to actual needs, usually can be 0.5～1.0dm
3
Order of placement to the ceramic filtering bed of material, poly-phosphate filter material layer and organophosphorus filter material layer is not particularly limited.Only otherwise affect technique effect of the present utility model, can select as required.Preferably along the direction from water inlet and water outlet, in tank body, arrange respectively the ceramic filtering bed of material, poly-phosphate filter material layer and organophosphorus filter material layer.This is after entering antisludging equipment because of water, at first can be filtered by ceramic filter material, and the active oxygen that discharges along with the ceramic filter material hydrolysis is sterilized water, and makes the impurity in the water obtain oxidation, and pH is raise slightly.Because pH value rising, can make in the water some oxidized contamination precipitation out.For example iron ion can be oxidized to from divalent 3 valencys, generates Fe (OH)
3Precipitation has a small amount of CaCO simultaneously
3Seed crystal generates, and these all can be deposited in the antisludging equipment on a small quantity, and water quality is improved to a certain extent.For the water that flows, current are understood a certain amount of poly-phosphate of stripping when the poly-phosphate filter material layer, and the amount that can make the instantaneous poly-phosphate that carries of current is 0.5～1.5ppm, thereby can the hidden calcium ion of complexing and magnesium ion.For several days obsolete water-heaters, static water is the poly-phosphorus glass ball of dissolving constantly.This moment since ceramic filter material in continuous hydrolysis, the pH value of water also can constantly raise, and helps to reduce the dissolution rate of poly-phosphate filtrate.Simultaneously, because the poly-phosphate filter material layer all has up and down water layer, can prevent that the poly-phosphate that is dissolved out from reaching supersaturation and producing white precipitate.Current can dissolve a small amount of organophosphorus when last organophosphorus filter material layer, the concentration of organophosphorus can reach 0.2～0.5ppm when stablizing, and total phosphorous has increased slightly in the current thereby make.Because organophosphorus is aobvious acid, therefore can make the pH value of water that decline is slightly arranged.This two aspect result will play the effect of stablizing poly-phosphate and reducing fouling to a certain extent when water-heater heats.Equally, for the situation of hydrostatic, owing to having used thicker filter cloth, as mentioned above, can reduce the dissolving consumption of poly-phosphate filtrate.
Fig. 3 is a preferred implementation of antisludging equipment of the present utility model.In the antisludging equipment of Fig. 3, can also have unshowned filter cloth.As mentioned above, filter cloth can be arranged in water inlet, water outlet and each layer baffle plate place.Between poly-phosphate filter material layer and organophosphorus filter material layer, can arrange thicker filter cloth.
Flow through the utility model antisludging equipment filtered water on the sacrificial magnesium alloy anode in the water-heater substantially do not have the impact, the galvanic protection effect of magnesium anode rod and the situation of life-span and tap water are without significant difference.Use antisludging equipment of the present utility model, water purification can be combined with scale inhibition, scale inhibition efficient can reach more than 70%.Scale inhibition performance (being scale inhibition efficient) refers to: under equal conditions, the difference of the incrustation scale weight (b) that generates in the incrustation scale weight (a) that generates in the raw water and the treated filtered water is divided by the percentage ratio of the incrustation scale weight gained that generates in the raw water, i.e. (a-b)/a.When the total volume of antisludging equipment is 0.5～1.0dm
3The time, in the situation that the poly-phosphate filtrate is 240 grams, can reach the work-ing life in 3～5 years.Use antisludging equipment of the present utility model, can prolong the work-ing life of water-heater, reduce water hardness, improve the bath comfort degree, save washings.
Embodiment
Ceramic filter material preparation example 1
Roasting rhombspar, temperature are 850 ℃, soaking time 4 hours; Use Walocel MT 20.000PV, make the aqueous solution 1%, soak the powder of roasting, then dry, obtain oxide ceramic powder 1.This oxide ceramic powder 1 of 5 grams is immersed in the 200ml water, measure the pH value of water, the pH value is 10 as a result, continues after 300 days, and pH still can reach 9～10.60 parts of oxide ceramic powders 1,20 parts of calcining furnace dust, 5 parts of titanium dioxide, 3 parts of reduced iron powders and 12 parts of activity charcoal powders are fully mixed; add 40 parts of Emulsion acrylic resins (it is formulated that the aqueous acrylic emulsion that use contains 50% solids content adds 1 times of water) in the material that mixes and stir; use tablets press to carry out granulation, the size distribution of particle is in the scope of 0.5～5mm.The particle of making is dried.To toast with baking oven, temperature is 220 ℃, is incubated 3 hours, obtains ceramic filter material 1.
Ceramic filter material preparation example 2
Roasting magnesite ore, temperature are 800 ℃, soaking time 6 hours; Acrylic resin is molten in N-BUTYL ACETATE according to 2: 8 ratio, breeze is carried out surface treatment, then 260 ℃ of bakings.Toast completely, ceramics powder is placed on indoor drying, obtain oxide ceramic powder 2.5 these powders of gram are immersed in the 200ml water, measure the pH value of water, the pH value is 10 as a result, continues after 300 days, and pH is still more than 9.With 20 parts of oxide ceramic powders 2,60 parts of calcining furnace dust, 20 parts of fly ash in electric power plant, fully mix; adding 30 parts in the material that mixes contains the Emulsion acrylic resin of 50% water and stirs; use tablets press to carry out granulation, the size distribution of particle is in the scope of 0.5～5mm.The particle of making is dried.The filtering material particle for preparing was soaked in the water 1 hour, do to clean and maturation process.To toast with baking oven, temperature is 150 ℃, is incubated 3 hours, obtains ceramic filter material 2.
Organophosphorus filtrate preparation example 1
40 parts of gacs as inorganic porous material, 40 parts of organophosphorus ATMP and 40 parts of organophosphorus HEDP are mixed oven dry.Pulverize, sieve, obtain approximately 100 purpose powder.Resins, epoxy E44, T31 solidifying agent are added in the dehydrated alcohol thinner, and the ratio of Resins, epoxy E44, T31 solidifying agent and dehydrated alcohol is 1: 0.3: 2, obtains the first surface covering liquid.Above-mentioned powder is immersed in the first surface covering liquid, carry out the surface and coat, carry out subsequently drying.Product is mixed with powder mutually with 20 parts of water resistant reinforcings, and water resistant reinforcing is comprised of quartz sand and titanium dioxide with powder, and the ratio of quartz sand and titanium dioxide is 4: 1.Use the mixed solution of 80 parts of aqueous epoxy resins 620,8 parts of Dyhard RU 100s and 40 parts of water as binding agent, carry out granulation.In the granulation later stage, use above-mentioned water tolerance to strengthen with powder particle is carried out the surface coating.The surface coating can be by carrying out pellet blending in water tolerance strengthens with powder.The particle that obtains was toasted 5 hours in 150 ℃ vacuum drying oven.Use above-mentioned first surface covering liquid, again particle is carried out the surface and coat processing and dry, this process is carried out 3 times, finally obtains organophosphorus filtrate 1.
Organophosphorus filtrate preparation example 2 (obtaining organophosphorus filtrate 2)
40 parts of gacs as inorganic porous material, 20 parts of organophosphorus ATMP and 20 parts of organophosphorus HEDP are mixed, dry.Pulverize, sieve, obtain approximately 100 purpose powder.Resins, epoxy E44, T31 solidifying agent are added in the dehydrated alcohol thinner, and the ratio of Resins, epoxy E44, T31 solidifying agent and dehydrated alcohol is 1: 0.3: 2, obtains the first surface covering liquid.Above-mentioned powder is immersed in the first surface covering liquid, carry out the surface and coat, carry out subsequently drying.Product is mixed with powder mutually with 20 parts of water resistant reinforcings, and water resistant reinforcing is comprised of quartz sand and titanium dioxide with powder, and the ratio of quartz sand and titanium dioxide is 4: 1.Use the mixed solution of 80 parts of aqueous epoxy resins 620,8 parts of Dyhard RU 100s and 40 parts of water as binding agent, carry out granulation.After granulation finishes (will change " after finishing " here in " later stage ", with specification sheets in echo mutually, use above-mentioned water tolerance to strengthen with powder particle carried out surface coating.The surface coating can be by carrying out pellet blending in water tolerance strengthens with powder.The particle that obtains was toasted 3 hours in 170 ℃ vacuum drying oven.Use above-mentioned first surface covering liquid, again particle is carried out the surface and coat processing and dry, this process is carried out 2 times, finally obtains organophosphorus filtrate 2.The organophosphorus filtrate water tolerance that obtains is strong, and burst size is higher.
Organophosphorus filtrate preparation example 3 (obtaining organophosphorus filtrate 3)
After 40 parts of gacs as inorganic porous material, 30 parts of organophosphorus ATMP, 30 parts of organophosphorus HEDP and 20 parts of sodium polyacrylates are mixed, dry.Pulverize, sieve, obtain approximately 100 purpose powder.Use the aqueous solution of water-borne acrylic resin RW16 as the first surface covering liquid, the ratio of water-borne acrylic resin RW16 and water is 1: 2.Above-mentioned powder is immersed in the first surface covering liquid, carry out the surface and coat, carry out subsequently drying, again pulverize.Mutually mix with powder with 20 parts of water resistant reinforcings, water resistant reinforcing is comprised of quartz sand and titanium dioxide with powder again, and the ratio of quartz sand and titanium dioxide is 4: 1.Use the mixed solution of 80 parts of aqueous epoxy resins 620,8 parts of Dyhard RU 100s, 20 parts of water soluble acrylic acid RW16 solution and 40 parts of water as binding agent, carry out granulation.In the granulation later stage, use above-mentioned water resistant reinforcing with powder particle to be carried out the surface and coat.The surface coating can be by carrying out pellet blending in water tolerance strengthens with powder.The particle that obtains was toasted 3 hours in 170 ℃ vacuum drying oven.Use above-mentioned first surface covering liquid, again particle is carried out the surface and coat processing and dry, this process is carried out 5 times, finally obtains organophosphorus filtrate 3.The organophosphorus filtrate burst size that obtains is steady, and the life-span is long.
Antisludging equipment Comparative Examples 1
The antisludging equipment of Comparative Examples 1 as shown in Figure 1.The water outlet of this antisludging equipment is linked to each other with the water inlet of pot-type boiler.In Fig. 1, at 0.6dm
3Antisludging equipment in, adopt separately 550 gram above-mentioned organophosphorus filtrates 1 as Scale inhibitors.Perforated baffle at water inlet and water outlet and placement Scale inhibitors arranges filter cloth.Test is carried out in Kweiyang.Test period is 5 months, and the test water yield is 200 tons.Test-results shows, compares by the amount of water-heater institute catch drain with tap water, and amount of scale buildup descends to some extent, and scale inhibition performance is 50%, and sacrificial anode consumption is 0.89 times of tap water.The result shows, only uses the organophosphorus filtrate to serve as Scale inhibitors, and scale inhibition efficient can not meet the demands.
Antisludging equipment Comparative Examples 2
The antisludging equipment of Comparative Examples 1 as shown in Figure 2.Antisludging equipment Comparative Examples 2 is identical with antisludging equipment Comparative Examples 1, and difference is to use 300 gram ceramic filter materials 1, the Nikkor that uses simultaneously 240 gram Beijing Sanxinhe Chemical Development Co., Ltd. to sell
The Si-P crystal product, namely poly-phosphate filtrate (polyphosphate glass ball) is as Scale inhibitors.Test is carried out in Kweiyang.Test-results shows, the poly-phosphate filtrate can produce white precipitate in hydrostatic, and scale inhibition efficient only has 25%, can not meet the demands.Adopt same antisludging equipment, test in Xuzhou.Test-results shows, scale inhibition performance is 98.5%; Anode consumption is 4 times of tap water.The result shows, owing to only using poly-phosphorus glass ball and ceramic filter material to serve as Scale inhibitors, scale inhibition efficient is very high in Xuzhou, but has accelerated the corrosion speed to sacrificial anode, still can not meet the demands.
The above results shows, water quality is very large for the scale inhibition effect impact of antisludging equipment.Gui Yangshui is different from Xu Zhoushui, and a principal character is that hardness is not high, but pH is higher.In addition, iron level of Shuicheng etc. is higher.Because water quality is different, poly-phosphate is very unstable in the water of Kweiyang.Therefore, this antisludging equipment is difficult to be widely used in various water quality.And, only adopt ceramic filter material and poly-phosphate filtrate as Scale inhibitors, the corrosion speed of sacrificial anode can not be satisfactory.
Antisludging equipment embodiment 1
The structure of antisludging equipment of the present utility model as shown in Figure 3.Wherein, unite the Nikkor that has used 300 gram ceramic filter materials 1,200 gram organophosphorus filtrates 1 and 160 gram Beijing Sanxinhe Chemical Development Co., Ltd. to sell
The Si-P crystal product is as Scale inhibitors.Test is carried out in Kweiyang.Experiment is carried out in the mode identical with antisludging equipment comparative example 1.Experimental result shows, scale inhibition performance is 88%; Anode consumption is 0.97 times of tap water.The result shows, unites and uses ceramic filter material, organophosphorus filtrate and poly-phosphate filtrate, can obtain excellent scale inhibition performance, and can prevent anode consumption.In addition, through 5 months experiment, the consumption of Scale inhibitors only was approximately 30% in the antisludging equipment, water consumption is 180 tons, be 60 tons of calculating according to family's year water consumption, add the poly-phosphate quantity that consumes in the water, the life-span of the Scale inhibitors in the antisludging equipment of the present utility model is more than 3 years.
The structure of antisludging equipment embodiment 2 is identical with antisludging equipment embodiment 1, and difference is, wherein unites and has used 200 gram ceramic filter materials 2,150 gram organophosphorus filtrates 2 and 240 to restrain the niphos board Si-P crystal product of Korea S three enrichment Co., Ltd. as Scale inhibitors.Test is carried out in Kweiyang.Test is carried out in the mode identical with antisludging equipment comparative example 1.Test-results shows, scale inhibition performance is 92%; Anode consumption is 1.06 times of tap water, can accept.The result shows, unites and uses ceramic filter material, organophosphorus filtrate and poly-phosphate filtrate, can obtain excellent scale inhibition performance, and anode consumption only has small increase.In addition, through 5 months experiment, use 150 tons of water, the consumption of Scale inhibitors only is approximately 25% in the antisludging equipment, be 60 tons of calculating according to family's year water consumption, add the poly-phosphate quantity that consumes in the water, the life-span of the Scale inhibitors in the antisludging equipment of the present utility model is more than 3 years.
The structure of antisludging equipment embodiment 3 is identical with antisludging equipment embodiment 1, and difference is, wherein unites and has used 200 gram ceramic filter materials 2,150 gram organophosphorus filtrates 3 and 160 to restrain the nikry board product of Korea S Athos science and technology Co., Ltd. as Scale inhibitors.Experiment is carried out in Kweiyang.Test is carried out in the mode identical with antisludging equipment comparative example 1.Test-results shows, scale inhibition performance is 98.5%; Anode consumption is 0.96 times of tap water.The result shows, unites and uses ceramic filter material, organophosphorus filtrate and poly-phosphate filtrate, can obtain excellent scale inhibition performance, and can prevent anode consumption.In addition, through 5 months test, water consumption was 200 tons, the consumption of Scale inhibitors only is approximately 30% in the antisludging equipment, be 60 tons of calculating according to family's year water consumption, add the poly-phosphate quantity that consumes in the hydrostatic, the life-span of the Scale inhibitors in the antisludging equipment of the present utility model is more than 3 years.
Claims (7)
1. antisludging equipment, described antisludging equipment comprises tank body, water inlet, water outlet and is arranged in the organophosphorus filter material layer of described tank body, the ceramic filtering bed of material and poly-phosphate filter material layer, described organophosphorus filter material layer contains the organophosphorus filtrate, the granule filter material of the liquid organophosphorus Scale inhibitors that described organophosphorus filtrate is slowly-releasing, the described ceramic filtering bed of material contains ceramic filter material, and described ceramic filter material is the granule filter material that comprises oxide ceramic powder.
2. antisludging equipment as claimed in claim 1, wherein said antisludging equipment also comprises water layer.
3. antisludging equipment as claimed in claim 1, wherein in weight ratio, the ceramic filtering bed of material: poly-phosphate filter material layer: organophosphorus filter material layer=2～8: 2～4: 1～3.
4. antisludging equipment as claimed in claim 1 wherein along the direction from water inlet and water outlet, is arranged respectively the described ceramic filtering bed of material, poly-phosphate filter material layer and organophosphorus filter material layer in tank body.
5. antisludging equipment as claimed in claim 1, wherein in the described ceramic filtering bed of material, poly-phosphate filter material layer and organophosphorus filter material layer between the adjacent two layers and water inlet and water outlet have filtration unit.
6. antisludging equipment as claimed in claim 5, wherein said filtration unit is filter cloth.
7. antisludging equipment as claimed in claim 6, wherein the filter cloth between described poly-phosphate filter material layer and organophosphorus filter material layer is thicker than other filter clothes.
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| CN 201220393839 CN202829718U (en) | 2012-08-09 | 2012-08-09 | Scale inhibition device |
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| CN 201220393839 CN202829718U (en) | 2012-08-09 | 2012-08-09 | Scale inhibition device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102786159A (en) * | 2012-08-09 | 2012-11-21 | 艾欧史密斯(中国)热水器有限公司 | Combined scale inhibitor and scale inhibition device |
| CN107021563A (en) * | 2017-06-01 | 2017-08-08 | 海德信玻璃钢（深圳）有限公司 | A kind of bar shaped slow-release scale inhibitor and preparation method thereof |
| CN111643997A (en) * | 2020-08-10 | 2020-09-11 | 湖南九九智能环保股份有限公司 | Cloud and mist device based on filtering and scale prevention |
| US11608464B1 (en) * | 2021-03-08 | 2023-03-21 | Jonathan R. Strobel | Solid scale inhibitor |
-
2012
- 2012-08-09 CN CN 201220393839 patent/CN202829718U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102786159A (en) * | 2012-08-09 | 2012-11-21 | 艾欧史密斯(中国)热水器有限公司 | Combined scale inhibitor and scale inhibition device |
| CN102786159B (en) * | 2012-08-09 | 2016-03-16 | 艾欧史密斯(中国)热水器有限公司 | Associating Scale inhibitors and antisludging equipment |
| CN107021563A (en) * | 2017-06-01 | 2017-08-08 | 海德信玻璃钢（深圳）有限公司 | A kind of bar shaped slow-release scale inhibitor and preparation method thereof |
| CN111643997A (en) * | 2020-08-10 | 2020-09-11 | 湖南九九智能环保股份有限公司 | Cloud and mist device based on filtering and scale prevention |
| US11608464B1 (en) * | 2021-03-08 | 2023-03-21 | Jonathan R. Strobel | Solid scale inhibitor |
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