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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

Active Publication Date: 2019-12-20
XINHUASHENG ENERGY SAVING TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide an artificial microcrystalline pumice material, which has performance characteristics such as light weight, high strength, low water absorption, and low thermal conductivity. Supply shortages, while saving natural resources and protecting the ecological environment

Method used

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  • Artificial microcrystalline pumice material and method for preparing artificial microcrystalline pumice material from industrial solid waste by volcanic diagenesis method at low temperature
  • Artificial microcrystalline pumice material and method for preparing artificial microcrystalline pumice material from industrial solid waste by volcanic diagenesis method at low temperature
  • Artificial microcrystalline pumice material and method for preparing artificial microcrystalline pumice material from industrial solid waste by volcanic diagenesis method at low temperature

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The raw material ratio (percentage by weight, the same below) of the artificial microcrystalline pumice material is as shown in table 1:

[0026] The raw material ratio of table 1 artificial microcrystalline pumice material

[0027]

[0028] Among 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 according to the following steps:

[0030] 1. Select the raw materials shown in Table 1.

[0031] 2. The raw materials selected in step 1 were weighed according to the proportion shown in Table 1, mixed, and ground in a ball mill with a fineness of 30 microns to obtain raw meal powder.

[0032] 3. Stamping the raw meal powder prepared in step 2.

[0033] 4. Sinter the shaped raw meal prepared in step 3 in a tunnel kiln, set the maximum firing temperature to 900°C, and the heating rate to 10°C / min.

[0034] 5. The m...

Embodiment 2

[0037] The ratio of raw materials of artificial microcrystalline pumice material is as shown in table 2:

[0038] The raw material ratio of table 2 artificial microcrystalline pumice material

[0039]

[0040] Among 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 according to the following steps:

[0042] 1. Select the raw materials shown in Table 2.

[0043] 2. The raw materials selected in step 1 are weighed according to the proportion shown in Table 2, mixed, and ground in a ball mill to control the particle size to about 25 microns to obtain raw meal powder.

[0044] 3. Extrude the raw meal powder prepared in step 2.

[0045] 4. The shaped raw meal prepared in step 3 is sintered in a roller kiln, the maximum firing temperature is set at 850°C, and the heating rate is 15°C / min.

[0046] 5. The material obtai...

Embodiment 3

[0049] The raw material ratio of artificial microcrystalline pumice material is as shown in table 3:

[0050] The raw material ratio of table 3 artificial microcrystalline pumice material 1

[0051]

[0052]

[0053] Among 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 according to the following steps:

[0055]1. Select the raw materials shown in Table 3.

[0056] 2. The raw materials selected in step 1 are weighed according to the proportion shown in Table 3, mixed, and ground in a ball mill to control the particle size to about 35 microns to obtain raw meal powder.

[0057] 3. Extrude the raw meal powder prepared in step 2.

[0058] 4. Put the molding raw material prepared in step 3 in 1m 3 Sintering in a shuttle kiln with a maximum firing temperature of 980°C and a heating rate of 12°C / min.

[0059] 5. ...

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Abstract

The invention discloses an artificial microcrystalline pumice material and a method for preparing the artificial microcrystalline pumice material from industrial solid waste by a volcanic diagenesis method at a low temperature. The material comprises the following chemical components: Al2O3, SiO2, CaO, MgO, Fe2O3, K2O and Na2O, and the weight ratio of the Al2O3 to the SiO2 to the CaO to the MgO tothe Fe2O3 to the K2O to the Na2O is (2-20):(65-90):(0.1-5):(0.1-5):(0.1-10):(0.1-10):(0.1-10). The preparation method comprises the following steps: 1) selecting raw materials; 2) mixing and grindingthe raw materials to obtain raw material powder; 3) carrying out forming, namely forming the raw material powder prepared in the step (2); 4) carrying out sintering, namely placing the formed raw material obtained in the step (3) into a high-temperature furnace for sintering, wherein the sintering temperature is 500-1000 DEG C; 5) carrying out cooling; and (6) carrying out modeling. The artificial microcrystalline pumice material has the advantages of low preparation temperature, controllable pore formation, light weight, high strength, excellent performance, wide application, abundant raw material sources and environmental friendliness. The preparation method of the artificial microcrystalline pumice material is simple and easy to implement and is low in cost.

Description

technical field [0001] The invention relates to a light inorganic artificial mineral material, specifically artificial microcrystalline pumice material, which is suitable for but not limited to industrial building heat insulation materials, grinding and polishing materials, catalyst carriers, building decoration boards, artificial floating island building materials and thermal insulation filling lightweight materials. gravel etc. The invention also relates to a method for preparing artificial microcrystalline pumice material at low temperature from industrial solid waste by volcanic diagenesis. Background technique [0002] Pumice is a non-metallic mineral-based inorganic lightweight material formed after the magma condensed from volcanic eruptions. It has the characteristics of porous, light weight, water absorption, odor absorption, sound insulation, heat preservation, and fire resistance, and is favored by researchers at home and abroad. Pumice is made into various produ...

Claims

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Application Information

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IPC IPC(8): C03C10/06
CPCC03C10/0063C03C10/0036
Inventor 朱晓辉黄明君
Owner XINHUASHENG ENERGY SAVING TECH CO LTD
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