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Production process of building envelope products

A technology of building enclosure and production process, applied in the direction of manufacturing tools, ceramic products, applications, etc., can solve problems such as limited application range, achieve the effects of reducing emissions, lowering calcination temperature, and saving production energy consumption

Inactive Publication Date: 2013-02-06
于浩
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

my country is rich in magnesite resources, the reserves account for 1 / 4 of the world's total reserves, but due to its own nature, its application range is still very limited

Method used

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  • Production process of building envelope products

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0071] (1) Preparation of mixture: Mix light-burned magnesia powder or a mixture of light-burned magnesia powder and quicklime, mineral admixtures, various aggregates and water according to the ratio of raw materials and stir them evenly to make a slurry . The equipment and process used for raw material metering, mixing and stirring can adopt existing known equipment and process.

[0072] (2) Mixture forming: the slab forming process can adopt the existing well-known plate forming process, such as: extrusion forming process, group vertical mold pouring forming process, etc. During the molding process, the prefabricated fiber cloth can be laid manually into the mold or the fiber-jet machine can be used to spray chopped fiber into the mold. The length of the chopped fiber should be controlled at 10-30mm. Before molding, a prefabricated rib skeleton must be placed in the mold.

[0073] (3) Pre-curing: The pre-curing of the board can adopt the same curing conditions as the above...

Embodiment 1

[0090] The method and process of the invention are used to produce ordinary concrete small-sized hollow blocks. Its raw material ratio and production process are:

[0091] The ratio of raw materials is calculated in parts by weight and includes:

[0092] Lightly burned magnesia powder: 550 parts;

[0093] Fly ash is selected as mineral admixture: 500 parts;

[0094] Coarse aggregate: 1500 parts; the maximum particle size of coarse aggregate is 10mm;

[0095] Fine aggregate: 900 parts;

[0096] Water: 500 parts.

[0097] The specific production process is:

[0098] (1) Raw material measurement and mixing: electronic measurement is used to measure various raw materials according to the proportion and mix them evenly.

[0099] (2) Mixture molding: transport the evenly stirred mixture to the block forming machine for molding. The block forming adopts pressure forming, and the forming pressure is 5MPa; the size of the block is length × width × height = 390mm × 190mm × 190mm,...

Embodiment 2

[0103] The method and process of the invention are used to produce small hollow blocks of lightweight aggregate concrete. Its raw material ratio and production process are:

[0104] The ratio of raw materials is calculated in parts by weight and includes:

[0105] Lightly burned magnesium oxide powder: 100 parts;

[0106] Quicklime: 75 parts;

[0107] The mineral admixture is selected from granulated blast furnace slag: 55 parts;

[0108] Pumice stone is selected as light aggregate: 800 parts; the maximum particle size is not more than 10mm;

[0109] Water: 90 parts.

[0110] The specific production process is:

[0111] (1) Raw material measurement and mixing: electronic measurement is used to measure various raw materials according to the proportion and mix them evenly.

[0112] (2) Molding of the mixture: transport the uniformly stirred mixture to the block forming machine for press molding with a molding pressure of 7.5MPa. The block size is length × width × height =...

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Abstract

The invention discloses a production process of building envelope products and belongs to the field of civil engineering. Light calcined magnesia power or mixture of light calcined magnesia power and quicklime is proportionally mixed with mineral admixtures such as granulated blast-furnace slag, coal ash, silica fume, red mud tailing powder and slag to obtain cementing material, the cementing material is mixed with aggregate and water into mixture used for producing building envelope material, and the building envelope material is finally hardened under CO2 environment into building envelope products such as building blocks, plates and tiles by means of mixing, forming, precuring and the like. The production process is low in production energy consumption, CO2 emitted from industrial waste residue and in industrial production is effectively utilized, and the building envelope products are new energy-saving environment-friendly products.

Description

technical field [0001] The invention belongs to the field of civil engineering, and specifically refers to a production process for producing building enclosure material products. Background technique [0002] Most of the building envelope materials (including bricks, blocks, plates, etc.) currently used in my country are made of cement as the cementitious material, adding various aggregates and mixing with water, and are made by forming, cutting, curing and other processes. The cementitious material cement used therein needs to be calcined at a high temperature during the production process, and the calcining temperature is 1450°C. Lightly burned magnesia powder and quicklime are cementitious materials obtained by calcination of magnesia (a mineral with magnesium carbonate as the main component) and limestone respectively. The calcination temperature is much lower than that of cement, 750°C and 900°C respectively. , so its production energy consumption is much lower than t...

Claims

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Application Information

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IPC IPC(8): B28B21/02B28B21/56B28B11/24C04B28/10C04B28/12C04B38/10
Inventor 于浩
Owner 于浩
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