Method for preparing microporous concrete emitter through combination of dry pressing and vacuum atomization
An irrigation and concrete technology, applied in the manufacture of tools, ceramic products, applications, etc., can solve the problems of high manufacturing cost and difficult agricultural promotion, and achieve the effects of excellent hydraulic performance, large flow, and high bonding strength.
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[0024] Example 1:
[0025] The process of preparing the microporous concrete irrigation device by dry pressing combined with vacuum atomization method in this embodiment is as follows figure 1 Shown:
[0026] The sand excavated from the sand field is passed through a 12-mesh and 18-mesh sieve in sequence to select sand with a particle size ranging from 1.0 to 1.7 mm. Mix the selected sand and P.O32.5 cement in a ratio of 80:20 and pour it into a ball mill tank. Add 15-25 alumina balls with a diameter of 8-12 mm to every 100 grams of the mixture. Use a roller ball mill to mix for 1.0 hour to obtain a mixture. Pour the mixture into a cement mortar mixer, spray silica sol with a concentration of 10% while stirring, and spray 35 grams of silica sol for every 100 grams of cement. After the silica sol is sprayed, the mixture is stirred for 15 minutes, then poured into the mold and molded into a water dispenser with a pressure of 10 MPa, and the mold is opened after the pressure is main...
Example Embodiment
[0028] Example 2:
[0029] The process of preparing the microporous concrete irrigation device by dry pressing combined with vacuum atomization method in this embodiment is as follows figure 1 Shown:
[0030] The sand excavated from the sand field is passed through a sieve of 18 mesh and 30 mesh in order to select sand with a particle size range of 0.6 to 1.0 mm. Mix the selected sand with the cement labeled P.O32.5 in a ratio of 82:18 and pour it into a ball mill tank. Add 15-25 alumina balls with a diameter of 8-12 mm to every 100 grams of the mixture. A drum ball mill was used to mix for 0.5 hours to obtain a mixture. Pour the mixture into a cement mortar mixer, spray silica sol with a concentration of 15% while stirring, and spray 30 grams of silica sol for every 100 grams of cement. After the silica sol is sprayed, the mixture is stirred for 20 minutes, then poured into the mold and molded into a water dispenser with a pressure of 8 MPa, and the mold is opened after the pres...
Example Embodiment
[0032] Example 3:
[0033] The process of preparing the microporous concrete irrigation device by dry pressing combined with vacuum atomization method in this embodiment is as follows figure 1 Shown:
[0034] The sand excavated from the sand field is passed through a sieve of 30 mesh and 80 mesh in sequence to select sand with a particle size range of 0.18 to 0.6 mm. Mix the selected sand with the cement labeled P.O42.5 in a ratio of 82:18 and pour it into a ball mill tank. Add 15-25 alumina balls with a diameter of 8-12 mm to every 100 grams of the mixture. A drum ball mill was used to mix for 0.5 hours to obtain a mixture. Pour the mixture into a cement mortar mixer, spray silica sol with a concentration of 15% while stirring, and spray 25 grams of silica sol for every 100 grams of cement. After the silica sol is sprayed, the mixture is stirred for 15 minutes, then poured into the mold and molded into a water dispenser with a pressure of 5 MPa, and the mold is opened after the ...
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