Production raw material of foamed glass and process for producing foamed glass

Abstract

The invention relates to raw materials for producing foam glass and a method for applying the same to produce the foam glass. The compositions by weight portion of the raw materials are: 380 to 580 portions of quartz sand, 105 to 250 portions of potassium feldspar, 130 to 270 portions of albite, 115 to 200 portions of dolomite, 5 to 25 portions of calcite, 150 to 250 portions of calcined soda, 0.5 to 30 portions of glauber salt, 1.0 to 12 portions of magnesium carbonate and 1.0 to 8.5 percent of potassium carbonate. The method comprises the following steps that: firstly, various raw material compositions are mixed into uniform glass mixture; secondly, the glass mixture is melted and cooled into cullet; thirdly, ball milling, foaming and annealing of the cullet are performed, and then foam glass is obtained. The method can automatically control and adjust the chemical compositions of the glass and add various functional compositions as required to meet the demand of producing the foam glass with different performances by adoption of common mineral and chemical raw materials of the natural world.

Description

(1) Technical field

[0001] The invention relates to a foam glass production raw material and a method for producing foam glass. (2) Background technology

[0002] The production of foam glass generally adopts the powder method, that is, the cullet is added to the foaming agent, ball milled, weighed into a heat-resistant stainless steel mold box, heated and sintered and foamed in a foaming kiln, and then demoulded and annealed to form a foam glass blank. , and then cut to the required size. Foam glass is formed by gas-liquid two-phase during the formation process. When heated, the glass powder gradually melts. The foaming agent and glass or a certain component in the glass such as sulfur trioxide (SO 3 ) chemical reaction and thermal decomposition to produce a sufficient amount of gas to form pores in the glass. With the gradual expansion of the diameter of the pores, the volume of the glass in the flowing state increases rapidly. When the volume reaches a certain value, lo...

Examples

Embodiment 1

[0104] A kind of foam glass production raw material, is made up of the component of following parts by weight:

[0105] 500 parts of quartz sand;

[0106] Potassium feldspar 140 parts;

[0107] Albite 160 parts;

[0108] Dolomite 145 parts;

[0109] Calcite 17 parts;

[0110] 200 parts of soda ash;

[0111] 6 parts Glauber's salt;

[0112] 5 parts of magnesium carbonate;

[0113] Potassium carbonate 4 parts;

[0114] 30 parts of barium sulfate;

[0115] Iron powder 8 parts;

[0116] 10 parts of boric acid;

[0117] 20 parts of manganese powder;

Embodiment 2

[0119] A kind of foam glass production raw material, is made up of the component of following parts by weight:

[0120] 440 parts of quartz sand;

[0121] Potassium feldspar 150 parts;

[0122] Albite 185 parts;

[0123] Dolomite 160 parts;

[0124] Calcite 14 parts;

[0125] 190 parts of soda ash;

[0126] Glauber's salt 24 parts;

[0127] 6 parts of magnesium carbonate;

[0128] Potassium carbonate 5 parts;

[0129] Iron powder 2 parts;

[0130] 230 parts of boric acid.

Embodiment 3

[0132] Adopt the foam glass production raw material of embodiment 1 and embodiment 2, adopt following method to produce foam glass:

[0133] (1) Mix various raw material components into a uniform glass batch;

[0134] (2) The glass batch material is transported from the raw material workshop to the kiln head bin of the glass melting workshop by the original melting belt, and is put into the glass melting furnace by the feeder, and the powdery raw materials are melted together by natural gas flame melting and electric boosting It becomes liquid glass liquid, which is drawn into a glass tube by a tube drawing machine, and after water quenching, it becomes a cullet of a certain particle size, and is dried by a dryer to become a finished cullet.

[0135] (3) The finished cullet is put into a ball mill to be ground into glass powder, and then foamed in a foaming kiln. After annealing, cutting and grinding, the finished foam glass is obtained.

[0136] The foam glass that the raw m...

(1) Technical field

[0001] The invention relates to a foam glass production raw material and a method for producing foam glass. (2) Background technology

[0002] The production of foam glass generally adopts the powder method, that is, the cullet is added to the foaming agent, ball milled, weighed into a heat-resistant stainless steel mold box, heated and sintered and foamed in a foaming kiln, and then demoulded and annealed to form a foam glass blank. , and then cut to the required size. Foam glass is formed by gas-liquid two-phase during the formation process. When heated, the glass powder gradually melts. The foaming agent and glass or a certain component in the glass such as sulfur trioxide (SO 3 ) chemical reaction and thermal decomposition to produce a sufficient amount of gas to form pores in the glass. With the gradual expansion of the diameter of the pores, the volume of the glass in the flowing state increases rapidly. When the volume reaches a certain value, lo...

Examples

Embodiment 1

[0104] A kind of foam glass production raw material, is made up of the component of following parts by weight:

[0105] 500 parts of quartz sand;

[0106] Potassium feldspar 140 parts;

[0107] Albite 160 parts;

[0108] Dolomite 145 parts;

[0109] Calcite 17 parts;

[0110] 200 parts of soda ash;

[0111] 6 parts Glauber's salt;

[0112] 5 parts of magnesium carbonate;

[0113] Potassium carbonate 4 parts;

[0114] 30 parts of barium sulfate;

[0115] Iron powder 8 parts;

[0116] 10 parts of boric acid;

[0117] 20 parts of manganese powder;

Embodiment 2

[0119] A kind of foam glass production raw material, is made up of the component of following parts by weight:

[0120] 440 parts of quartz sand;

[0121] Potassium feldspar 150 parts;

[0122] Albite 185 parts;

[0123] Dolomite 160 parts;

[0124] Calcite 14 parts;

[0125] 190 parts of soda ash;

[0126] Glauber's salt 24 parts;

[0127] 6 parts of magnesium carbonate;

[0128] Potassium carbonate 5 parts;

[0129] Iron powder 2 parts;

[0130] 230 parts of boric acid.

Embodiment 3

[0132] Adopt the foam glass production raw material of embodiment 1 and embodiment 2, adopt following method to produce foam glass:

[0133] (1) Mix various raw material components into a uniform glass batch;

[0134] (2) The glass batch material is transported from the raw material workshop to the kiln head bin of the glass melting workshop by the original melting belt, and is put into the glass melting furnace by the feeder, and the powdery raw materials are melted together by natural gas flame melting and electric boosting It becomes liquid glass liquid, which is drawn into a glass tube by a tube drawing machine, and after water quenching, it becomes a cullet of a certain particle size, and is dried by a dryer to become a finished cullet.

[0135] (3) The finished cullet is put into a ball mill to be ground into glass powder, and then foamed in a foaming kiln. After annealing, cutting and grinding, the finished foam glass is obtained.

[0136] The foam glass that the raw m...