CN1883751A - Method for producing natural mineral adsorption filter ring - Google Patents
Method for producing natural mineral adsorption filter ring Download PDFInfo
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- CN1883751A CN1883751A CN 200610040716 CN200610040716A CN1883751A CN 1883751 A CN1883751 A CN 1883751A CN 200610040716 CN200610040716 CN 200610040716 CN 200610040716 A CN200610040716 A CN 200610040716A CN 1883751 A CN1883751 A CN 1883751A
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Abstract
The invention discloses a method of preparation natural mineral adsorption filtration ring. Key point of technical project is: selecting natural mineral adsorption filtration agent as raw material, moistening with water, pressing to rectangle plate, airing, roasting, cooling and getting the product. There is interconnection labyrinth-type micropore in the filtration ring which is benefit for organic bacterium growth and reproduction and decreases ammonia and nitrogen content of breed water body. The oxygen content of breed water body can increase by aeration process. The natural mineral adsorption ring has fast filtration speed and high adsorption ability for diversified harmful substance generated by organism metabolism and heavy metal, and is adapted for breed water purifying and other water quality process.
Description
Technical field:
The present invention relates to adsorption filter ring, be specifically related to a kind of production method of natural-minerals adsorptive filter ring.
Background technology:
For production efficiency and the economic benefit that improves breeding water body, plant takes the high density intensive culture mostly, the balanced capacity of water ecosystem is limited, the high density intensive culture, a large amount of bait throwing in easily cause water body dissolved oxygen deficiency, cause and produce a large amount of organic matters in the water, algal grown is too fast, water colour changes greatly, and the pH value is unstable, and ammonia-nitrogen content exceeds standard.For making the limited maximum production capacity of breeding water body performance, must keep good water quality environment condition, this just must solve by loose, the corrupt water pollutions that caused of organic matter such as residual bait and excreta, minimizing is owing to the excessive harm that causes of harmful substance, the raising culture benefit.
In the process for purifying of breeding water body, begun to use filtering ring to carry out purification of water quality, Gong Ying filtering ring has in the market: ceramic filter ring, quartz sand filtration ring and silk screen filter ring etc., the material of these filtering rings is made up of raw materials such as potter's clay, quartz sand, steel wire, plastics and strings mostly, absorption property is relatively poor in actual applications, biofilm efficient is low, is unfavorable for the growth and breeding of biological bacteria, can not effectively reduce the ammonia-nitrogen content of breeding water body.
Chinese patent publication number CN1594223, open day is on March 16th, 2005, name is called " a kind of production method that is applied to the porous filtering pottery of water treatment ", it discloses " a kind of production method that is applied to the porous filtering pottery of water treatment, it comprises batching, slurry and foams mix, irritates operations such as mould, high temperature sintering; The employed mould of production method of the present invention can adopt common plastics to make, thereby can reduce the cost of mould, correspondingly can reduce production cost of products, improves the competitiveness of product in market; The present invention is widely used in culturing the water treatment field of industry ".
The foregoing invention weak point is:
1, porous ceramics just contains concavo-convex rod in the base, is putting into kiln at 1000-1500 ℃ scope constant temperature sintering after 3-5 hour, and the crystal structure of concavo-convex rod has suffered serious destruction, greatly reduces the absorption property of concavo-convex rod.
2, cement, gypsum, quartz sand and the concavo-convex rod in the batching put into kiln at 1000-1500 ℃ scope constant temperature sintering after 3-5 hour, be molten condition, the bubble that foaming agent produced and the space that forms will significantly reduce, therefore can cause retaining power not strong, biofilm efficient is lower, the growth and breeding that is unfavorable for biological bacteria can not effectively reduce the ammonia-nitrogen content of breeding water body.
Summary of the invention:
The objective of the invention is to overcome weak point in the prior art, provide that a kind of production technology is simple, filtration and the absorption property effect is all relatively good, biofilm efficient height, help the production method of the natural-minerals adsorptive filter ring of biological bacteria growth and breeding.
The production method of natural-minerals adsorptive filter ring is: select the raw material of natural-minerals adsorptive filter medium for use as natural-minerals adsorptive filter ring, add water moistening after, be pressed into the annular object, through drying, being finished product after the roasting, cooling.
One, the preparation method of natural-minerals adsorptive filter medium:
1, zeolite, Concave-convex clay rod acidifying after, bentonite acidifying after, diatomite acidifying after, volcanic rock and the alumine of natural-minerals adsorptive filter medium after by acidifying formed.
Zeolite can be selected some heavy metal of exchange, can be used for removing heavy metal ion, zeolite has very big specific area, can produce bigger extension, be outstanding adsorbent, and it not only can regulate water quality zeolite, remove the harmful substance in the water body, and mycotoxin had detoxification, the growth and breeding of useful biological bacteria in can also promoting in the breeding water body is to reduce the ammonia-nitrogen content of breeding water body.Zeolite behind acidifying and the high-temperature activation contains a large amount of holes, nutrients can be adsorbed in its a large amount of hole, directly award the breeding place of planktonic organism the best, keep the stable and content of microorganisms of water colour, because zeolite has very strong suction-operated, organic, harmful substance can be adsorbed in the hole of zeolite.
Concave-convex clay rod soil property exquisiteness, smooth surface, be viscosity and plasticity when moist, its viscosity can reach more than the 3000mPas, and dry contraction is little, and do not produce be full of cracks, help the bonding between the filtering ring raw material, the hardness of Concave-convex clay rod is Mohs 2～3 degree, when sintering temperature reaches 450～650 ℃, the hardness of Concave-convex clay rod rises to Mohs 5～6 degree, can guarantee the active strength of natural-minerals adsorptive filter medium; After the Concave-convex clay rod acidification, specific area can reach 350m
2More than/the g, its absorption property is greatly improved.
Bentonite has higher molecule porosity, and higher plasticity and stronger caking property are arranged, and hot green tensile strength and dry-pressing intensity are higher; Stronger cation exchange capacity (CEC) is arranged, all gases, liquid, organic substance are had certain adsorption capacity, maximal absorptive capacity can reach 5 times of weight to it, and the bentonite after the acidification can be adsorbed with color substance.
The diatomite mineral deposit belongs to the siliceous rock biochemical deposit origin cause of formation, be by the accumulation of Diatomeae animal and other biological siliceous skeleton part and thereupon transformation form, because diatomite has characteristics such as exquisiteness, loose, light weight, porous, suction and permeability are strong, diatomite after the acidification, its special structure structure makes it have many special technique and physical property has obtained further raising, as big porosity, stronger adsorptivity, and certain intensity is arranged.
Volcanic rock is a kind of coarse, lightweight, porous and the higher ore of water absorption rate that the volcanic eruption overflow forms, and can improve the performance of its absorption biofilm.
Alumine is through after the roasting, and its inner crystallization water, constitution water, attached water overflow, and by dredging, pine, softly becoming fine and close hardly, helps increasing the bulk strength of filtering ring on the structure.
2, acidification:
The preparation of dilute sulfuric acid comprises following component by weight percentage: the sulfuric acid 3～10% of concentration 98%, water 90～97%;
The batching of acidification comprises following component by weight percentage: various raw mineral materials are respectively 55～65%, dilute sulfuric acid 35～45%; Dilute sulfuric acid is slowly added in zeolite, Concave-convex clay rod, bentonite and the diatomite respectively, carry out acidification.
After various raw materials after the acidifying are stacked 24～48 hours, push by extruder respectively and be tablet, the THICKNESS CONTROL of tablet is at 2～3 millimeters, and carries out airing respectively, and the tablet after the airing is moisture should be less than 15%.
The batching of natural-minerals adsorptive filter medium comprises following component by weight percentage: the zeolite 15～35% after the acidifying, the Concave-convex clay rod 15～35% after the acidifying, the bentonite 15～25% after the acidifying, the diatomite 10～20% after the acidifying, volcanic rock 5～10% and alumine 5～10%.
The preparation method of natural-minerals adsorptive filter medium is:
According to the batching of natural-minerals adsorptive filter medium, mix the back and be irregular particle with the pulverizer pulverizing, after screening, grain fineness is controlled at 1.50～2.50 millimeters.
Natural-minerals adsorptive filter medium has been applied for patent of invention in addition.
Two, the present invention is achieved by following technical proposals:
1, the batching of natural-minerals adsorptive filter ring comprises following component by weight percentage: natural-minerals adsorptive filter medium 75～95%, water 5～25%.
2, natural-minerals adsorptive filter ring is a kind of annular object, and the surface of filtering ring is very coarse, helps the growth and breeding of biological bacteria.
3, the production method of natural-minerals adsorptive filter ring: the natural-minerals adsorptive filter medium with water after moistening adds in the filtering ring mould, the working pressure machine is pressed into the semi-finished product of natural-minerals adsorptive filter ring, send into to dry and carry out nature in the room and dry, after half-finished water content is less than 13%, semi-finished product are transported to carry out roasting in the calcining kiln, roasting time is 6～10 hours, and sintering temperature is controlled at 450～650 ℃, and the cooling back is the finished product of natural-minerals adsorptive filter ring.
Natural-minerals adsorptive filter ring inside is covered with the labyrinth type micropore of mutual UNICOM, have the advantages that specific area is big, the rate of filtration is fast, retaining power is strong, the natural-minerals adsorptive filter ring absorption property is good, biofilm efficient height, the labyrinth type micropore helps biological bacteria and is adsorbed on its inside and carries out growth and breeding, reduce the ammonia-nitrogen content of breeding water body, by quick-fried gas disposal technology, can improve the oxygen content of breeding water body, natural-minerals adsorptive filter ring can also adsorb because various harmful substances that biological metabolism produced and the heavy metal in the water.
Natural-minerals adsorptive filter ring intensity height, strong, the low temperature resistant easy to be filmed of capacity of resisting impact load, anti-flushing is wear-resistant, the backwash energy consumption is low.
Natural-minerals adsorptive filter ring is applicable to the water purifying process of breeding water body, also is applicable to other water conditioning process.
Description of drawings:
Fig. 1 is the schematic diagram of natural-minerals adsorptive filter ring, and Fig. 2 is that the A of Fig. 1 is to view.
Among the figure: 1. being natural-minerals adsorptive filter rings, 2. is central through holes of natural-minerals adsorptive filter ring.
The specific embodiment:
Below in conjunction with embodiment, the invention will be further described:
One, the preparation method of natural-minerals adsorptive filter medium:
1, acidification:
1. the acidification of zeolite:
Earlier zeolite is pulverized, grain fineness is controlled at 0.5～0.8 millimeter; The preparation of dilute sulfuric acid comprises following component by weight percentage: the sulfuric acid 4% of concentration 98%, water 96%; The batching of acidification comprises following component by weight percentage: zeolite 60%, dilute sulfuric acid 40%; Dilute sulfuric acid slowly added carry out acidification in the zeolite, stack after 24 hours to push by extruder and be tablet, the THICKNESS CONTROL of tablet is at 2～3 millimeters, and carries out airing, and the tablet after the airing is moisture should be less than 15%.
2. the acidification of Concave-convex clay rod:
Earlier Concave-convex clay rod is pulverized, grain fineness is controlled at 0.5～1.0 millimeter; The preparation of dilute sulfuric acid comprises following component by weight percentage: the sulfuric acid 3% of concentration 98%, water 97%; The batching of acidification comprises following component by weight percentage: Concave-convex clay rod 55%, dilute sulfuric acid 45%; Dilute sulfuric acid slowly added carry out acidification in the Concave-convex clay rod, stack after 24 hours to push by extruder and be tablet, the THICKNESS CONTROL of tablet is at 2～3 millimeters, and carries out airing, and the tablet after the airing is moisture should be less than 15%.
3. bentonitic acidification:
Earlier bentonite is pulverized, grain fineness is controlled at 0.5～1.0 millimeter; The preparation of dilute sulfuric acid comprises following component by weight percentage: the sulfuric acid 8% of concentration 98%, water 92%; The batching of acidification comprises following component by weight percentage: bentonite 55%, dilute sulfuric acid 45%; Dilute sulfuric acid slowly added carry out acidification in the POLARGEL NF, stack after 24 hours to push by extruder and be tablet, the THICKNESS CONTROL of tablet is at 2～3 millimeters, and carries out airing, and the tablet after the airing is moisture should be less than 15%.
4. diatomaceous acidification:
Earlier diatomite is pulverized, grain fineness is controlled at 0.5～1.0 millimeter; The preparation of dilute sulfuric acid comprises following component by weight percentage: the sulfuric acid 10% of concentration 98%, water 90%; The batching of acidification comprises following component by weight percentage: diatomite 55%, dilute sulfuric acid 45%; Dilute sulfuric acid slowly added carry out acidification in the diatomite, stack after 24 hours to push by extruder and be tablet, the THICKNESS CONTROL of tablet is at 2～3 millimeters, and carries out airing, and the tablet after the airing is moisture should be less than 15%.
2, the batching of natural-minerals adsorptive filter medium comprises following component by weight percentage: the zeolite 20% after the acidifying, the Concave-convex clay rod 32% after the acidifying, the bentonite 25% after the acidifying, the diatomite 10% after the acidifying, volcanic rock 8% and alumine 5%.
3, the preparation method of natural-minerals adsorptive filter medium is:
According to the batching of natural-minerals adsorptive filter medium, mix the back and be irregular particle with the pulverizer pulverizing, after screening, grain fineness is controlled at 1.50～2.50 millimeters.
Two, the production method of natural-minerals adsorptive filter ring:
1, the batching of natural-minerals adsorptive filter ring comprises following component by weight percentage: natural-minerals adsorptive filter medium 80%, water 20%.
2, the production method of natural-minerals adsorptive filter ring: the natural-minerals adsorptive filter medium with water after moistening adds in the filtering ring mould, the working pressure machine is pressed into the semi-finished product of natural-minerals adsorptive filter ring, send into to dry and carry out nature in the room and dry, after half-finished water content is less than 13%, semi-finished product are transported to carry out roasting in the calcining kiln, roasting time is 8 hours, and sintering temperature is controlled at 600～650 ℃, and the cooling back is the finished product of natural-minerals adsorptive filter ring.
Claims (3)
1, a kind of production method of natural-minerals adsorptive filter ring is characterized in that, selects the raw material of natural-minerals adsorptive filter medium as natural-minerals adsorptive filter ring for use, add water moistening after, be pressed into the annular object, through drying, being finished product after the roasting, cooling.
2, the production method of natural-minerals adsorptive filter ring according to claim 1 is characterized in that, the batching of natural-minerals adsorptive filter ring comprises following component by weight percentage: natural-minerals adsorptive filter medium 75～95%, water 5～25%.
3, the production method of natural-minerals adsorptive filter ring according to claim 1, it is characterized in that, natural-minerals adsorptive filter medium with water after moistening, add in the filtering ring mould, the working pressure machine is pressed into the semi-finished product of natural-minerals adsorptive filter ring, send into to dry and carry out nature in the room and dry, after half-finished water content is less than 13%, semi-finished product are transported to carry out roasting in the calcining kiln, roasting time is 6～10 hours, sintering temperature is controlled at 450～650 ℃, and the cooling back is the finished product of natural-minerals adsorptive filter ring.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610040716 CN1883751A (en) | 2006-05-30 | 2006-05-30 | Method for producing natural mineral adsorption filter ring |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610040716 CN1883751A (en) | 2006-05-30 | 2006-05-30 | Method for producing natural mineral adsorption filter ring |
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| CN1883751A true CN1883751A (en) | 2006-12-27 |
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| CN 200610040716 Pending CN1883751A (en) | 2006-05-30 | 2006-05-30 | Method for producing natural mineral adsorption filter ring |
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