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Fly ash ceramic soilless culture substrate and manufacturing process thereof

A technology of soilless cultivation substrate and fly ash, which is applied in the field of material engineering, can solve the problems of long service life, low cost of soilless cultivation substrate, good water retention and air permeability, etc., and achieve long service life, beneficial to environmental protection, water retention and ventilation good sex effect

Inactive Publication Date: 2014-08-20
张书源
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to produce a kind of fly ash ceramic soilless cultivation substrate to solve the problems that the existing soilless cultivation substrate cannot have low cost, good water retention and air permeability, long service life and easy recycling, and the problem of using waste Fly ash, reducing the series of environmental problems they bring

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] 1. Mixing materials: add clear water at 15°C in the mixer, and the water-cement ratio (the ratio of water to fly ash weight) is 1 / 3. According to the raw material ratio of fly ash 98%, mixed activator X2%, the Add various raw materials into the blender and stir for 12 minutes to make it fully stirred evenly.

[0019] 2. Foaming: add hydrogen peroxide, the ratio of hydrogen peroxide to ash (the ratio of hydrogen peroxide to fly ash weight) is 2 / 1000, stir for 8 minutes, put the slurry into the mold, and let it stand for 2 hours.

[0020] 3. Curing: Curing the foamed slurry at 20°C for 18 days.

[0021] 4. Firing: There will be a certain initial strength when the slurry is cured. Put the billet into the kiln for firing, and the firing temperature is 1180 degrees Celsius.

[0022] 5. Slicing: cut into regular slices.

[0023] 6. Product inspection: Eliminate defective products and obtain qualified products of fly ash ceramic soilless cultivation substrate.

Embodiment 2

[0025] 1. Mixing: add clear water at 35°C to the mixer, and the water-cement ratio (the ratio of water to fly ash weight) is 1 / 2. According to the raw material ratio of 90% fly ash and mixed activator X10%, put Add various raw materials into the blender and stir for 8 minutes to make it fully stirred evenly.

[0026] 2. Foaming: add hydrogen peroxide, the ratio of hydrogen peroxide to ash (the weight ratio of hydrogen peroxide to fly ash) is 30 / 1000, stir for 5 minutes, put the slurry into the mold, and let it rest for 5 hours.

[0027] 3. Curing: Curing the foamed slurry at 35°C for 12 days.

[0028] 4. Firing: There will be a certain initial strength when the slurry is cured. Put the billet into the kiln for firing, and the firing temperature is 1100 degrees Celsius.

[0029] 5. Slicing: cut into regular slices.

[0030] 6. Product inspection: Eliminate defective products and obtain qualified products of fly ash ceramic soilless cultivation substrate.

Embodiment 3

[0032] 1. Mixing materials: add clear water at 60°C in the mixer, and the water-cement ratio (the ratio of water to fly ash weight) is 3 / 5. According to the raw material ratio of fly ash 83%, mixed activator X 17%, the Add various raw materials into the blender and stir for 5 minutes to make it fully stirred evenly.

[0033] 2. Foaming: add hydrogen peroxide, the ratio of hydrogen peroxide to ash (the ratio of hydrogen peroxide to fly ash weight) is 50 / 1000, stir for 3 minutes, put the slurry into the mold, and let it stand for 8 hours.

[0034] 3. Curing: Curing the foamed slurry at 55°C for 10 days.

[0035] 4. Firing: There will be a certain initial strength when the slurry is cured. Put the billet into the kiln for firing, and the firing temperature is 1050 degrees Celsius.

[0036] 5. Slicing: cut into regular slices.

[0037] 6. Product inspection: Eliminate defective products and obtain qualified products of fly ash ceramic soilless cultivation substrate.

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PUM

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Abstract

The invention relates to a fly ash ceramic soilless culture substrate and a manufacturing process thereof, belonging to the technical field of material engineering. A geopolymer foamed adobe with certain strength is prepared by using the pozzolanic activity of fly ash and is then sintered so as to obtain a ceramic. The fly ash ceramic soilless culture substrate comprises the following raw materials: 80 to 98.5% of fly ash and 1.5 to 20% of a mixed exciting agent X. Sintering temperature is 1000 to 1200 DEG C. The mixed exciting agent X is an alkaline mixed liquor containing a plurality of ions and active materials. The novel fly ash ceramic soilless culture substrate has the characteristics of low cost, good water retention performance and air permeability, long service life and easy recovery processing and is very beneficial for protection of the environment since industrial waste like waste fly ash can be utilized.

Description

technical field [0001] The invention belongs to the technical field of material engineering, and relates to a fly ash ceramic soilless culture substrate and a manufacturing process. Background technique [0002] Soilless cultivation is a new direction for future agricultural development. Among the current soilless cultivation techniques in the world, soilless cultivation with substrate is the main method currently used. Substrate is the most used facility in soilless cultivation. A good substrate directly determines the success or failure of soilless cultivation. It is of great significance to actively develop a high-performance substrate. Fly ash ceramics are a new type of ceramics, which are supported by internal geopolymers and fired at high temperatures. This new type of ceramics has the characteristics of high strength and high specific surface area. The existing soilless culture matrix materials mainly include the following types: rock wool, sand, and foamed plastics....

Claims

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Application Information

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IPC IPC(8): C04B38/02C04B35/00C04B35/622
Inventor 张书源
Owner 张书源
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