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Micropore ceramic irrigation device and preparation method thereof

A technology of microporous ceramics and sprinklers, which is applied in botany equipment and methods, root waterers, applications, etc., can solve problems such as high working pressure, difficult manufacturing, and high energy consumption, so as to reduce energy consumption and prevent negative The effect of pressure suction mud and root invasion, good anti-clogging ability

Inactive Publication Date: 2016-11-23
NORTHWEST A & F UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these three emitters are all made of plastic, and their structures are relatively complex. During injection molding, affected by factors such as raw materials and injection molding processes, it is difficult to manufacture, which seriously affects the manufacturing accuracy of the emitters.
In addition, the traditional underground drip irrigation emitter has a high working pressure, generally 10m, high energy consumption, and high system operating costs, which will affect its popularization and application

Method used

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  • Micropore ceramic irrigation device and preparation method thereof
  • Micropore ceramic irrigation device and preparation method thereof
  • Micropore ceramic irrigation device and preparation method thereof

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Effect test

preparation example Construction

[0027] The preparation method of the microporous ceramic emitter of the present invention specifically comprises the following steps:

[0028] (1) Raw material screening: select quartz sand, talc powder, dextrin and silica sol as the main raw materials for preparing microporous ceramic emitters. In order to avoid the interference of other soluble substances in the quartz sand particles, the quartz sand particles were screened, and the quartz sand particles between 150 and 300 mesh were selected and placed in an oven, and dried at 105°C for 12 hours before use.

[0029] (2) Mixing materials: mix quartz sand, talcum powder, dextrin and silica sol according to a certain mass ratio, wherein quartz sand accounts for 50% to 70%, talcum powder accounts for 20% to 40%, dextrin accounts for 5% and Silica sol accounts for 5%. In the mixing process, first mix the quartz sand, talc powder and dextrin according to the above ratio, then add a certain amount of silica sol, put it into a fre...

Embodiment 1

[0034] (1) Raw material screening: select quartz sand, talc powder, dextrin and silica sol as the main raw materials for preparing microporous ceramic emitters. In order to avoid the interference of other soluble substances in the quartz sand particles, the quartz sand particles were screened, and the quartz sand particles between 150 and 300 mesh were selected and placed in an oven, and dried at 105°C for 12 hours before use.

[0035] (2) Mixing: Quartz sand, talcum powder, dextrin and silica sol are mixed according to a certain mass percentage, wherein quartz sand accounts for 60%, talc powder accounts for 30%, dextrin accounts for 5% and silica sol accounts for 5%. In the mixing process, first mix the quartz sand, talc powder and dextrin according to the above ratio, then add a certain amount of silica sol, put it into a frequency conversion planetary ball mill and mill it at a low speed of 200r / min for 10 hours to obtain the inter-tube microporous ceramics Powder required ...

Embodiment 2

[0044] The raw materials for preparing the dispenser in the present invention select quartz sand as the framework material, talcum powder as the sintering aid, dextrin as the adhesion modifier, and silica sol as the adhesive. The selection of the above raw materials is determined on the basis of previous exploration. In this embodiment, the material formulation test in Table 1 was carried out.

[0045] Table 1 Material formula

[0046]

[0047] After material performance testing, it was found that the microporous ceramic emitters prepared by the three formulations in Table 1 can meet the requirements in terms of material properties (such as: open porosity, flexural strength, etc.), but in the hydraulic performance test, it was found that the emitters The flow in the air will gradually decrease with time, and finally approach 0, and blockage occurs (such as Figure 8 ), indicating that the three formulations in Table 1 failed and could not meet the irrigation requirements ...

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Abstract

The invention discloses a micropore ceramic irrigation device and a preparation method thereof. The method comprises the steps that silica sand, talcum powder, dextrin and silica sol are adopted as main raw materials, and the raw materials are subjected to screening, mixing, compression molding forming, drying, sintering, polishing and other technologies to obtain the micropore ceramic irrigation device. The obtained tubulus micropore ceramic irrigation device is simple in structure and convenient to prepare, the irrigation device is connected with a tubular billet, non-pressure continuous irrigation is performed underground, energy consumption can be greatly lowered compared with conventional underground irrigation, the outflow of the irrigation device and soil water potential are coupled, the soil water can be automatically regulated according to the crop need, and the advantage of active irrigation is achieved. Due to the fact that negative pressure mud suction and root invasion are avoided, the problem of serious plugging of the irrigation device limiting underground irrigation technology application popularization can be effectively solved, and the irrigation device is particularly applicable to vegetable and flower irrigation.

Description

technical field [0001] The invention belongs to the technical field of agricultural water-saving irrigation in arid areas, and in particular relates to a microporous ceramic sprinkler and a preparation method thereof. Background technique [0002] Underground drip irrigation is to bury capillary tubes and irrigators in the ground, and directly transport irrigation water to the root zone of crops for absorption and utilization by crops. Compared with surface drip irrigation, subsurface drip irrigation can further reduce surface ineffective evaporation, improve the growth environment of crop root zone, improve water use efficiency, facilitate field management, and prolong capillary service life. Although underground drip irrigation has the unparalleled advantages of surface drip irrigation, there are still obvious defects. So far, the problem of underground drip irrigation blockage has not been completely solved. Different from surface drip irrigation, it is very difficult to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/14C04B35/63A01G29/00
CPCA01G29/00C04B35/14C04B35/6316C04B35/636C04B2235/349
Inventor 张林蔡耀辉吴普特朱德兰吴守军
Owner NORTHWEST A & F UNIV
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