Method for preparing foam glass particles from silica powder

Abstract

The invention discloses a method for preparing foam glass particles from silica powder, belonging to the technical field of foam glass preparation methods. The method specifically comprises the following steps: step 1, carrying out iron removal and other treatment on silica powder collected by a dust collection device so as to remove impurities; and 2, mixing raw materials consisting of, in percentage by weight, 80-90% of silica powder, 2-4% of a foaming agent, 1-3% of a stabilizer and 1-2% of a cosolvent, with the balance being fly ash. According to the invention, production cost is low, a grinding process is omitted, the method is simple in process and easy to implement, a heat-resistant steel mesh belt is used as a carrier, foaming time is short, foaming is uniform, yield is high, energy consumption is greatly reduced, and product quality is stable. The method overcomes the following problems that waste glass, lava, coal ash and the like are generally adopted as raw materials for foaming of existing foam glass and are high in cost and that the recycling rate of silica powder is extremely low since the silica powder is dust generated in the process of glass cutting and crushing machining, is collected through dust collection equipment and is about 200 meshes.

Description

technical field

[0001] The present invention relates to a kind of foam glass preparation method, specifically a kind of method that utilizes silicon micropowder to prepare foam glass particle. Background technique

[0002] Foam glass was first invented by St.Gobain Company in France in 1935. It is made of cullet, foaming agent, additives and accelerators, etc., which are ground and mixed to form a mixture, and put into a specific mold. Porous glass materials made by heating, sintering, foaming, annealing and other processes.

[0003] The raw materials commonly used for the foaming of existing foam glass are waste glass, lava and fly ash, etc., which are mainly manifested in the high cost of raw materials.

[0004] Microsilica powder is the dust generated during the glass cutting and crushing process. It is collected by dust collection equipment, and it is about 200 mesh powder, and the recycling rate is extremely low. Contents of the invention

[0005] The object of the ...

Examples

Embodiment 1

[0029] Follow these steps:

[0030] Step 1: Carry out iron removal and other treatments on the silicon micropowder collected by the dust collection device to remove impurities, and the fly ash must be sieved with 200 mesh;

[0031] Step 2: The raw material formula is calculated by weight percentage, with 80% silicon micropowder, 2% foaming agent, 1% stabilizer, 1% cosolvent, and the rest is fly ash, and the above raw materials are fully mixed and stirred evenly to prepare Obtain mixture, foaming agent is calcium carbonate, silicon carbide and carbonates, stabilizer is boric acid, sodium carbonate and sodium sulfate, cosolvent is sodium carbonate, sodium fluorosilicate and borax;

[0032] Step 3: Put the mixture on the heat-resistant steel dense mesh belt that has been painted with release agent, put it into the furnace and preheat it: put the mixture on the heat-resistant steel dense mesh belt, and the mesh belt runs continuously into the Furnace, the mixture is preheated at ...

Embodiment 2

[0035] Follow these steps:

[0036] Step 1: Carry out iron removal and other treatments on the silicon micropowder collected by the dust collection device to remove impurities, and the fly ash must be sieved with 200 mesh;

[0037] Step 2: The raw material formula is calculated by weight percentage, with 90% silicon micropowder, 4% foaming agent, 3% stabilizer, 2% cosolvent, and the rest is fly ash, and the above raw materials are fully mixed and stirred evenly to prepare Obtain mixture, foaming agent is calcium carbonate, silicon carbide and carbonates, stabilizer is boric acid, sodium carbonate and sodium sulfate, cosolvent is sodium carbonate, sodium fluorosilicate and borax;

[0038] Step 3: Put the mixture on the heat-resistant steel dense mesh belt that has been painted with release agent, put it into the furnace and preheat it: put the mixture on the heat-resistant steel dense mesh belt, and the mesh belt runs continuously into the Furnace, the mixture is preheated at ...

Embodiment 3

[0041] Follow these steps:

[0042] Step 1: Carry out iron removal and other treatments on the silicon micropowder collected by the dust collection device to remove impurities, and the fly ash must be sieved with 200 mesh;

[0043] Step 2: The raw material formula is calculated by weight percentage, with 85% silicon micropowder, 3% foaming agent, 2% stabilizer, 1.5% cosolvent, and the rest is fly ash, and the above raw materials are fully mixed and stirred evenly to prepare Obtain mixture, foaming agent is calcium carbonate, silicon carbide and carbonates, stabilizer is boric acid, sodium carbonate and sodium sulfate, cosolvent is sodium carbonate, sodium fluorosilicate and borax;

[0044] Step 3: Put the mixture on the heat-resistant steel dense mesh belt that has been painted with release agent, put it into the furnace and preheat it: put the mixture on the heat-resistant steel dense mesh belt, and the mesh belt runs continuously into the Furnace, the mixture is preheated a...

technical field

[0001] The present invention relates to a kind of foam glass preparation method, specifically a kind of method that utilizes silicon micropowder to prepare foam glass particle. Background technique

[0002] Foam glass was first invented by St.Gobain Company in France in 1935. It is made of cullet, foaming agent, additives and accelerators, etc., which are ground and mixed to form a mixture, and put into a specific mold. Porous glass materials made by heating, sintering, foaming, annealing and other processes.

[0003] The raw materials commonly used for the foaming of existing foam glass are waste glass, lava and fly ash, etc., which are mainly manifested in the high cost of raw materials.

[0004] Microsilica powder is the dust generated during the glass cutting and crushing process. It is collected by dust collection equipment, and it is about 200 mesh powder, and the recycling rate is extremely low. Contents of the invention

[0005] The object of the ...

Examples

Embodiment 1

[0029] Follow these steps:

[0030] Step 1: Carry out iron removal and other treatments on the silicon micropowder collected by the dust collection device to remove impurities, and the fly ash must be sieved with 200 mesh;

[0031] Step 2: The raw material formula is calculated by weight percentage, with 80% silicon micropowder, 2% foaming agent, 1% stabilizer, 1% cosolvent, and the rest is fly ash, and the above raw materials are fully mixed and stirred evenly to prepare Obtain mixture, foaming agent is calcium carbonate, silicon carbide and carbonates, stabilizer is boric acid, sodium carbonate and sodium sulfate, cosolvent is sodium carbonate, sodium fluorosilicate and borax;

[0032] Step 3: Put the mixture on the heat-resistant steel dense mesh belt that has been painted with release agent, put it into the furnace and preheat it: put the mixture on the heat-resistant steel dense mesh belt, and the mesh belt runs continuously into the Furnace, the mixture is preheated at ...

Embodiment 2

[0035] Follow these steps:

[0036] Step 1: Carry out iron removal and other treatments on the silicon micropowder collected by the dust collection device to remove impurities, and the fly ash must be sieved with 200 mesh;

[0037] Step 2: The raw material formula is calculated by weight percentage, with 90% silicon micropowder, 4% foaming agent, 3% stabilizer, 2% cosolvent, and the rest is fly ash, and the above raw materials are fully mixed and stirred evenly to prepare Obtain mixture, foaming agent is calcium carbonate, silicon carbide and carbonates, stabilizer is boric acid, sodium carbonate and sodium sulfate, cosolvent is sodium carbonate, sodium fluorosilicate and borax;

[0038] Step 3: Put the mixture on the heat-resistant steel dense mesh belt that has been painted with release agent, put it into the furnace and preheat it: put the mixture on the heat-resistant steel dense mesh belt, and the mesh belt runs continuously into the Furnace, the mixture is preheated at ...

Embodiment 3

[0041] Follow these steps:

[0042] Step 1: Carry out iron removal and other treatments on the silicon micropowder collected by the dust collection device to remove impurities, and the fly ash must be sieved with 200 mesh;

[0043] Step 2: The raw material formula is calculated by weight percentage, with 85% silicon micropowder, 3% foaming agent, 2% stabilizer, 1.5% cosolvent, and the rest is fly ash, and the above raw materials are fully mixed and stirred evenly to prepare Obtain mixture, foaming agent is calcium carbonate, silicon carbide and carbonates, stabilizer is boric acid, sodium carbonate and sodium sulfate, cosolvent is sodium carbonate, sodium fluorosilicate and borax;

[0044] Step 3: Put the mixture on the heat-resistant steel dense mesh belt that has been painted with release agent, put it into the furnace and preheat it: put the mixture on the heat-resistant steel dense mesh belt, and the mesh belt runs continuously into the Furnace, the mixture is preheated a...

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