Artificial microcrystalline pumice material and method for preparing artificial microcrystalline pumice material from industrial solid waste by volcanic diagenesis method at low temperature
A technology of industrial solid waste and artificial micro-pumice, applied in the field of artificial micro-crystalline pumice materials and low-temperature preparation of artificial micro-crystalline pumice materials from industrial solid waste by volcanic diagenesis, which can solve the problems of low water absorption, low thermal conductivity, supply shortage, etc., and achieve water absorption. Low-cost, versatile, and high-performance effects
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[0024] Example 1
[0025] The raw material ratio (weight percentage, the same below) of the artificial microcrystalline pumice material is shown in Table 1:
[0026] Table 1 The raw material ratio of artificial microcrystalline pumice material
[0027]
[0028] In the above raw materials, the weight ratio of the components is: Al 2 O 3 :SiO 2 : CaO: MgO: Fe 2 O 3 : K 2 O: Na 2 O=5:70:4:4:9:3:1.
[0029] The artificial microcrystalline pumice material is prepared as follows:
[0030] 1. Select the raw materials shown in Table 1.
[0031] 2. The raw materials selected in step 1 are weighed according to the ratio shown in Table 1, and then mixed, pulverized in a ball mill with a fineness of 30 microns to obtain raw meal powder.
[0032] 3. Press and form the raw meal powder obtained in step 2.
[0033] 4. The shaped raw meal prepared in step 3 is sintered in a tunnel kiln, the highest firing temperature is set to 900°C, and the heating rate is 10°C / min.
[0034] 5. The material prepared in ste...
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[0036] Example 2
[0037] The raw material ratio of artificial microcrystalline pumice material is shown in Table 2:
[0038] Table 2 The raw material ratio of artificial microcrystalline pumice material
[0039]
[0040] In the above raw materials, the weight ratio of the components is: Al 2 O 3 :SiO 2 : CaO: MgO: Fe 2 O 3 : K 2 O: Na 2 O=10:72:3:3:4:1:2.
[0041] The artificial microcrystalline pumice material is prepared as follows:
[0042] 1. Select the raw materials shown in Table 2.
[0043] 2. The raw materials selected in step 1 are weighed according to the ratio shown in Table 2, and then mixed, and ground in a ball mill to control the particle size to be about 25 microns to obtain raw meal powder.
[0044] 3. Extruding the raw meal powder prepared in step 2.
[0045] 4. Sinter the formed raw material prepared in step 3 in a roller kiln, the highest firing temperature is set to 850°C, and the heating rate is 15°C / min.
[0046] 5. The material prepared in step 4 is naturally cooled...
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[0048] Example 3
[0049] The raw material ratio of artificial microcrystalline pumice material is shown in Table 3:
[0050] Table 3 The raw material ratio of artificial microcrystalline pumice material 1
[0051]
[0052]
[0053] In the above raw materials, the weight ratio of the components is: Al 2 O 3 :SiO 2 : CaO: MgO: Fe 2 O 3 : K 2 O: Na 2 O=10:65:5:3:6:1:2.
[0054] The artificial microcrystalline pumice material is prepared as follows:
[0055] 1. Select the raw materials shown in Table 3.
[0056] 2. The raw materials selected in step 1 are weighed according to the ratio shown in Table 3, then mixed, pulverized in a ball mill, and the particle size is controlled at about 35 microns to prepare raw meal powder.
[0057] 3. Extruding the raw meal powder prepared in step 2.
[0058] 4. Put the raw material prepared in step 3 at 1m 3 For sintering in a shuttle kiln, the highest firing temperature is set to 980°C, and the heating rate is 12°C / min.
[0059] 5. The material prepared in ...
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