CN104798665A - Novel micro-porous ceramic irrigation emitter for infiltrating irrigation technology and preparation method thereof - Google Patents
Novel micro-porous ceramic irrigation emitter for infiltrating irrigation technology and preparation method thereof Download PDFInfo
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- CN104798665A CN104798665A CN201510168864.9A CN201510168864A CN104798665A CN 104798665 A CN104798665 A CN 104798665A CN 201510168864 A CN201510168864 A CN 201510168864A CN 104798665 A CN104798665 A CN 104798665A
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- irrigator
- irrigation
- barrel shape
- micropore ceramics
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Abstract
The invention discloses a novel micro-porous ceramic irrigation emitter for infiltrating irrigation technology and a preparation method thereof. The micro-porous ceramic irrigation emitter comprises a barrel type irrigation emitter (1), a top cover (2) is arranged at the top end of the barrel type irrigation emitter (1), the top cover (2) is communicated with a micro-pipe (3) used for filling water to the barrel type irrigation emitter (1), and the micro-pipe (3) is further communicated with a tubular billet. The preparation method includes that mixing white cement with calcium sulfate according to proportion to obtain mixed solution; pouring the mixed solution to a die (4) through an opening (5), and demolding to obtain the barrel type irrigation emitter (1) after the mixed solution is solidified and molded. The novel micro-porous ceramic irrigation emitter for the infiltrating irrigation technology and the preparation method thereof enable the traditional irrigation emitter production cost to be greatly lowered, and the novel micro-porous ceramic irrigation emitter for the infiltrating irrigation technology is good in energy dissipation effect, obvious in filter effect, capable of effectively avoiding physical blockage and capable of being broadly used for the water-saving irrigation field.
Description
Technical field
The present invention relates to micropore ceramics irrigator of a kind of novel infiltration irrigation technology and preparation method thereof, belong to water-saving irrigation technique field.
Background technology
Micropore ceramics is a kind of aperture is micron-sized porous ceramic film material.At present, both at home and abroad about the application rarely seen report of pottery in the field of irrigation, only in Negative pressure irrigation, a small amount of theory study is applied to porous ceramics.And the micropore be interconnected in micropore ceramics has extraordinary capillarity, utilize its capillarity can carry out energy dissipating, with the labyrinth flow-path of the complexity in alternative traditional water irrigation device to having pressure irrigation water; The inner tiny micropore of micropore ceramics can effectively filter the physical suspension thing in irrigation water simultaneously, prevents physical clogging.
Infiltration irrigation technology is one of the most advanced water-saving irrigation technique in the world today, and it effectively can reduce the evaporation of surface water, increases the utilization ratio of irrigation water to the full extent.But also there is more problem in infiltrating irrigation at present, as cost is too high, uniformity of irrigation water appilcation is low, easily blocking etc.These problems hinder the development of infiltration irrigation technology greatly.Therefore, be badly in need of a kind of low cost of design, practical, there is good effect of energy dissipation, effectively New-style Emitter preventing physical clogging and preparation method thereof.The present invention is based on micropore ceramics irrigator of a kind of novel infiltration irrigation technology of above problem design and preparation method thereof, the popularization for following infiltration irrigation technology has certain facilitation, and the development for water-saving irrigation technique has certain impetus.
Summary of the invention
Technical problem to be solved by this invention is, provides a kind of infiltrating irrigation area large, supplements the micropore ceramics irrigator of a kind of novel infiltration irrigation technology of the moisture of crop root in time; Further, provide a kind of mould of manufacture micropore ceramics irrigator, this Mold Making is easy, and cost is low, is beneficial to the batch making of micropore ceramics irrigator; Further, provide a kind of preparation method of micropore ceramics irrigator of novel infiltration irrigation technology, the micropore ceramics irrigator that this legal system is standby, cost is low, and uniformity of irrigation water appilcation is good, can prevent physical clogging and have effect of energy dissipation.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
A kind of micropore ceramics irrigator of novel infiltration irrigation technology, it is characterized in that: comprising: barrel shape irrigator, the top of described barrel shape irrigator is provided with top cover, and described top cover is connected with the microtubule for pouring water in described barrel shape irrigator, and described microtubule is also connected with hollow billet; Described barrel shape irrigator is made up of mould.
Described top cover also can not be connected directly between on hollow billet by microtubule.
The shape of described mould is Inverted bottle type, and the top of described Inverted bottle type is provided with the opening raised up.
The material of described top cover is hard nylon.
Described barrel shape irrigator outward appearance pinkiness, smooth surface.
The height of described barrel shape irrigator is 70 ~ 90mm, and external diameter is 30 ~ 50mm, and interior reservoir water cavity diameter is 15 ~ 25mm, and the interior reservoir water cavity degree of depth is 65 ~ 80mm.
The wall thickness of described barrel shape irrigator is determined according to the water percolating capacity of required irrigator, and the wall thickness reducing irrigator can increase the water percolating capacity of irrigator.
A preparation method for the micropore ceramics irrigator of novel infiltration irrigation technology, is characterized in that: comprise the following steps:
Step one: white cement and calcium sulphate are mixed to get mixed solution in proportion, the ratio of described calcium sulphate is 5% ~ 20%;
Step 2: be poured in mould by opening by above-mentioned mixed solution, after solution coagulation forming to be mixed, namely the demoulding obtains barrel shape irrigator.
The composition of described white cement comprises tricalcium aluminate, dicalcium silicate and aluminium oxide.
Calcium sulphate is the permeable housing of barrel shape irrigator, for the infiltration of barrel shape irrigator; The main component of white cement is tricalcium aluminate and dicalcium silicate, as the main frame of barrel shape irrigator, bears from irrigation water and outside load; This combination can play the high good advantage of effect that seeps water with calcium sulphate of white cement intensity simultaneously; And calcium sulphate significantly can also shorten the setting time of white cement, reduces manufacturing cost.
During described mixed solution coagulation forming, chemical reaction can occur, generate CSH gel and AFT on both surfaces of contact, concrete reaction is as follows:
2(3CaO﹒SiO
2)+6H
2O→3CaO﹒SiO
2﹒2H
2O+Ca(OH)
2(1)
3CaO﹒Al
2O
3+3(CaSO
4﹒2H
2O)+26H
2O→3CaO﹒Al
2O
3﹒3CaSO
4﹒32H
2O (2)
3CaO ﹒ SiO in formula (1)
2represent dicalcium silicate; 3CaO ﹒ SiO
2﹒ 2H
2o represents CHS gel;
3CaO ﹒ Al in formula (2)
2o
3represent tricalcium aluminate; CaSO
4﹒ 2H
2o represents calcium sulphate dihydrate; 3CaO ﹒ Al
2o
3﹒ 3CaSO
4﹒ 32H
2o represents AFT;
Large all than calcium sulphate dihydrate crystal of the strength and stability of described CHS gel and AFT, solvability in water is also little, coefficient of softing also higher than calcium sulphate, thus forms stable network structure when described mixed solution coagulation forming, to improve mechanical property and the water resistance of barrel shape irrigator.
By white cement and calcium sulphate according to the mixing of certain ratio, can give full play to the high and calcium sulphate of white cement intensity and to seep water effective advantage, calcium sulphate significantly can shorten the setting time of white cement, reduction manufacturing cost.The strength and stability of CSH gel and AFT is all large than calcium sulphate dihydrate crystal structure, solvability in water is little, its coefficient of softing, higher than calcium sulphate, forms more stable network structure in hardenite, and bi-material fusion significantly can improve mechanical property and the water resistance of irrigator.Meanwhile, be designed to cylindrical by barrel shape irrigator, whole cylindrical surface can seep water, and expands infiltrating irrigation area, supplements the moisture of crop root in time.
During use, imbed described barrel shape irrigator at crop root soil position, water is poured water to described barrel shape irrigator inside by described microtubule and described hollow billet, and water is oozed out by the micropore of described barrel shape irrigator sidewall and diapire, supply water to the root system of crop, reach the object of water-saving irrigation.
The material of barrel shape irrigator of the present invention adopts a kind of novel unburned micropore ceramics, by white cement and calcium sulphate according to the mixing of certain ratio, gives full play to the high good advantage of effect that seeps water with calcium sulphate of white cement intensity; And calcium sulphate significantly can also shorten the setting time of white cement, reduces manufacturing cost; Bi-material fusion significantly can improve mechanical property and the water resistance of irrigator.
Micropore ceramics is applied to water-saving irrigation field by the present invention the innovative point of following three aspects: adopt novel micropore ceramics material, reduce the manufacturing cost of irrigator; Micropore in micropore ceramics has good effect of energy dissipation, improves the Energy Dissipation Modes that all kinds of irrigator before this adopts; Micropore ceramics effectively can prevent physical clogging due to its good filtration, improves the service life of irrigator.Micropore ceramics Subirrigation douche makes the production cost of irrigator greatly reduce, and also reduces the difficulty in the processes such as irrigator assembling, use simultaneously, saves labour.Therefore this kind of micropore ceramics irrigator has certain facilitation for the popularization of following infiltration irrigation technology, and the development for water-saving irrigation technique has certain impetus.
Micropore ceramics irrigator of a kind of novel infiltration irrigation technology provided by the invention and preparation method thereof, the one-tenth greatly reducing traditional water irrigation device produces cost, and have good effect of energy dissipation, filtration is remarkable, effectively can prevent physical clogging, water-saving irrigation field can be widely used in.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of mould in the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further described.
Embodiment 1:
As shown in Fig. 1 ~ 2, a kind of micropore ceramics irrigator of novel infiltration irrigation technology, it is characterized in that: comprising: barrel shape irrigator 1, the top of described barrel shape irrigator 1 is provided with top cover 2, described top cover 2 is connected with the microtubule 3 for pouring water in described barrel shape irrigator 1, and described microtubule 3 is also connected with hollow billet; Described barrel shape irrigator 1 is made up of mould 4.
The shape of described mould 4 is Inverted bottle type, and the top of described Inverted bottle type is provided with the opening 5 raised up.
The material of described top cover 2 is hard nylon.
The height of described barrel shape irrigator 1 is 70mm, and external diameter is 30mm, and interior reservoir water cavity diameter is 15mm, and the interior reservoir water cavity degree of depth is 65mm.
A preparation method for the micropore ceramics irrigator of novel infiltration irrigation technology, is characterized in that: comprise the following steps:
Step one: white cement and calcium sulphate are mixed to get mixed solution in proportion, the ratio of described calcium sulphate is 5%;
Step 2: be poured in mould 4 by opening 5 by above-mentioned mixed solution, after solution coagulation forming to be mixed, namely the demoulding obtains barrel shape irrigator 1.
The composition of described white cement comprises tricalcium aluminate, dicalcium silicate and aluminium oxide.
During described mixed solution coagulation forming, chemical reaction occurs, generate CSH gel and AFT, concrete reaction is as follows:
2(3CaO﹒SiO
2)+6H
2O→3CaO﹒SiO
2﹒2H
2O+Ca(OH)
2(1)
3CaO﹒Al
2O
3+3(CaSO
4﹒2H
2O)+26H
2O→3CaO﹒Al
2O
3﹒3CaSO
4﹒32H
2O (2)
3CaO ﹒ SiO in formula (1)
2represent dicalcium silicate; 3CaO ﹒ SiO
2﹒ 2H
2o represents CHS gel;
3CaO ﹒ Al in formula (2)
2o
3represent tricalcium aluminate; CaSO
4﹒ 2H
2o represents calcium sulphate dihydrate; 3CaO ﹒ Al
2o
3﹒ 3CaSO
4﹒ 32H
2o represents AFT;
Large all than calcium sulphate dihydrate crystal of the strength and stability of described CHS gel and AFT, solvability in water is also little, coefficient of softing also higher than calcium sulphate, thus forms stable network structure when described mixed solution coagulation forming, to improve mechanical property and the water resistance of barrel shape irrigator 1.
After barrel shape irrigator 1 is shaping, material, after living through natural curing, adopts Archimedes's drainage to measure its density and open pore rate.
During test, get a pat, the weight ms of test sample under drying regime (dry weight) respectively, quality mw (weight in wet base) under water-filling saturated conditions, and after quality mf (buoyant weight) under floating situation, calculated density and the porosity of micropore sample by formula (3) and (4).
Concrete data in test process are as shown in table 1:
Table 1 density of material and percent opening meter
As shown in Table 1, the average open pore rate of this micropore ceramics is up to 56%.So high porosity can meet irrigation water by property, give full play to its infiltrate characteristic.
Barrel shape irrigator is installed on hydraulic performance test platform and carries out hydraulic performance experiment.During test, after pass into press water in irrigator, current can be observed clearly and slowly ooze out at the outer wall of barrel shape irrigator, and condense into the globule on the outer wall of irrigator, as human body skin is perspired.The globule forms current subsequently, collects and flows down.By matching, the hydraulic characteristic curve equation between the pressure versus flow drawing Subirrigation douche.
Q＝-0.0046H
2+0.2239H-0.1725
From fitting formula, along with the increase of head H, the water percolating capacity Q of barrel shape irrigator increases gradually.For low-pressure irrigation system, head is generally less than 5m, and now can pass through increases the measure such as the osmotic coefficient of micropore ceramics or the wall thickness of reduction irrigator, improves the water percolating capacity of irrigator, irrigates requirement accordingly to meet.
Embodiment 2:
As shown in Fig. 1 ~ 2, a kind of micropore ceramics irrigator of novel infiltration irrigation technology, is characterized in that: the height of described barrel shape irrigator 1 is 90mm, and external diameter is 50mm, and interior reservoir water cavity diameter is 25mm, and the interior reservoir water cavity degree of depth is 80mm.
A preparation method for the micropore ceramics irrigator of novel infiltration irrigation technology, is characterized in that: the ratio of described calcium sulphate is 20%.
All the other contents are with embodiment 1.
Embodiment 3:
As shown in Fig. 1 ~ 2, a kind of micropore ceramics irrigator of novel infiltration irrigation technology, is characterized in that: the height of described barrel shape irrigator 1 is 80mm, and external diameter is 40mm, and interior reservoir water cavity diameter is 25mm, and the interior reservoir water cavity degree of depth is 65mm.
A preparation method for the micropore ceramics irrigator of novel infiltration irrigation technology, is characterized in that: the ratio of described calcium sulphate is 10%.
All the other contents are with embodiment 1.
Embodiment 4:
As shown in Fig. 1 ~ 2, a kind of preparation method of micropore ceramics irrigator of novel infiltration irrigation technology, is characterized in that: the ratio of described calcium sulphate is 15%.
All the other contents are with embodiment 1.
Embodiment 5:
As shown in Fig. 1 ~ 2, a kind of preparation method of micropore ceramics irrigator of novel infiltration irrigation technology, is characterized in that: the ratio of described calcium sulphate is 8%.
All the other contents are with embodiment 1.
The above is only the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (7)
1. the micropore ceramics irrigator of a novel infiltration irrigation technology, it is characterized in that: comprising: barrel shape irrigator (1), the top of described barrel shape irrigator (1) is provided with top cover (2), described top cover (2) is connected with the microtubule (3) for pouring water in described barrel shape irrigator (1), and described microtubule (3) is also connected with hollow billet; Described barrel shape irrigator (1) is made up of mould (4).
2. the micropore ceramics irrigator of a kind of novel infiltration irrigation technology according to claim 1, is characterized in that: the shape of described mould (4) is Inverted bottle type, and the top of described Inverted bottle type is provided with the opening (5) raised up.
3. the micropore ceramics irrigator of a kind of novel infiltration irrigation technology according to claim 1, is characterized in that: the material of described top cover (2) is hard nylon.
4. the micropore ceramics irrigator of a kind of novel infiltration irrigation technology according to claim 1, it is characterized in that: the height of described barrel shape irrigator (1) is 70 ~ 90mm, external diameter is 30 ~ 50mm, and interior reservoir water cavity diameter is 15 ~ 25mm, and the interior reservoir water cavity degree of depth is 65 ~ 80mm.
5. the preparation method of the micropore ceramics irrigator of a kind of novel infiltration irrigation technology according to any one of claim 1 ~ 4, is characterized in that: comprise the following steps:
Step one: white cement and calcium sulphate are mixed to get mixed solution in proportion, the ratio of described calcium sulphate is 5% ~ 20%;
Step 2: be poured in mould (4) by above-mentioned mixed solution by opening (5), after solution coagulation forming to be mixed, namely the demoulding obtains barrel shape irrigator (1).
6. the preparation method of the micropore ceramics irrigator of a kind of novel infiltration irrigation technology according to claim 5, is characterized in that: the composition of described white cement comprises tricalcium aluminate, dicalcium silicate and aluminium oxide.
7. the preparation method of the micropore ceramics irrigator of a kind of novel infiltration irrigation technology according to claim 5, is characterized in that: during described mixed solution coagulation forming, chemical reaction occurs, and generates
cSHgel and
aFT, concrete reaction is as follows:
2（3
CaO﹒SiO 2 ）+ 6
H 2 O → 3
CaO﹒SiO 2 ﹒2
H 2 O+
Ca(OH) 2 (1)
3
CaO﹒Al 2 O 3 + 3（
CaSO 4 ﹒2
H 2 O）+ 26
H 2 O →3
CaO﹒Al 2 O 3 ﹒3
CaSO 4 ﹒32
H 2 O(2)
In formula (1) 3
caO ﹒ SiO 2 represent dicalcium silicate; 3
caO ﹒ SiO 2 ﹒2
h 2 orepresentative
cHSgel;
In formula (2) 3
caO ﹒ Al 2 o 3 represent tricalcium aluminate;
caSO 4 ﹒ 2
h 2 orepresent calcium sulphate dihydrate; 3
caO ﹒ Al 2 o 3 ﹒3
caSO 4 ﹒32
h 2 orepresentative
aFT;
Described
cHSgel and
aFTlarge all than calcium sulphate dihydrate crystal of strength and stability, solvability in water is also little, coefficient of softing also higher than calcium sulphate, thus forms stable network structure when described mixed solution coagulation forming, to improve mechanical property and the water resistance of barrel shape irrigator (1).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510168864.9A CN104798665A (en) | 2015-04-10 | 2015-04-10 | Novel micro-porous ceramic irrigation emitter for infiltrating irrigation technology and preparation method thereof |
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|---|---|
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Family
ID=53684235
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106145912A (en) * | 2016-07-01 | 2016-11-23 | 西北农林科技大学 | A kind of micropore ceramics douche and preparation method thereof |
| CN106565191A (en) * | 2016-10-09 | 2017-04-19 | 西北农林科技大学 | Method for preparing microporous concrete emitter through combination of dry pressing and vacuum atomization |
| CN110202667A (en) * | 2019-05-13 | 2019-09-06 | 西北农林科技大学 | A kind of mechanized production system for micropore ceramics douche |
| CN114916409A (en) * | 2022-04-19 | 2022-08-19 | 三峡大学 | Opposite-flushing self-washing anti-blocking infiltrating irrigation emitter, preparation method and anti-blocking method |
| CN115176674A (en) * | 2022-07-22 | 2022-10-14 | 三峡大学 | Phosphogypsum-based composite material self-washing drip irrigation emitter and preparation and flushing method thereof |
-
2015
- 2015-04-10 CN CN201510168864.9A patent/CN104798665A/en not_active Withdrawn
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106145912A (en) * | 2016-07-01 | 2016-11-23 | 西北农林科技大学 | A kind of micropore ceramics douche and preparation method thereof |
| CN106145912B (en) * | 2016-07-01 | 2018-07-20 | 西北农林科技大学 | A kind of micropore ceramics douche and preparation method thereof |
| CN106565191A (en) * | 2016-10-09 | 2017-04-19 | 西北农林科技大学 | Method for preparing microporous concrete emitter through combination of dry pressing and vacuum atomization |
| CN110202667A (en) * | 2019-05-13 | 2019-09-06 | 西北农林科技大学 | A kind of mechanized production system for micropore ceramics douche |
| CN114916409A (en) * | 2022-04-19 | 2022-08-19 | 三峡大学 | Opposite-flushing self-washing anti-blocking infiltrating irrigation emitter, preparation method and anti-blocking method |
| CN114916409B (en) * | 2022-04-19 | 2024-03-12 | 三峡大学 | Opposite-flushing self-washing anti-blocking infiltrating irrigation device and preparation and anti-blocking method |
| CN115176674A (en) * | 2022-07-22 | 2022-10-14 | 三峡大学 | Phosphogypsum-based composite material self-washing drip irrigation emitter and preparation and flushing method thereof |
| CN115176674B (en) * | 2022-07-22 | 2023-09-19 | 三峡大学 | Phosphogypsum-based composite self-cleaning drip irrigation emitter and preparation and flushing methods |
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Application publication date: 20150729 |