Porous sintering heat-insulating hollow block and manufacturing process thereof

A hollow block and process technology, which is applied in the field of porous sintered heat-insulating hollow block and its preparation technology, can solve the problems of easy falling off, short life, poor safety, etc.

Active Publication Date: 2012-12-05
XIAN RES & DESIGN INST OF WALL & ROOF MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The exterior thermal insulation system composed of sintered thermal insulation hollow blocks in the prior art has defects such as easy to fall off, short life, poor safety, and difficult to control quality...

Method used

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  • Porous sintering heat-insulating hollow block and manufacturing process thereof
  • Porous sintering heat-insulating hollow block and manufacturing process thereof
  • Porous sintering heat-insulating hollow block and manufacturing process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0099] The porous sintered insulating hollow block 68 of this embodiment is composed of the following components in weight percentage: 30% of solid waste, 55% of inorganic binder, and 15% of microporous pore-forming agent; the solid waste is coal gangue, and the The inorganic binder is shale (with a particle size less than 0.5mm), and the microporous pore-forming agent is sawdust.

[0100] like figure 1 and figure 2 As shown, the preparation process of the present embodiment comprises the following steps:

[0101] Step 1, particle grading: first, the first material conveyor 35 sends the solid waste in the feeder 34 to the jaw crusher 36; then, the jaw crusher 36 crushes the solid waste for the first time, The second material conveyor 37 sends the solid waste obtained by crushing for the first time to the vertical mill 38; then, the vertical mill 38 crushes the solid waste obtained for the first time for the second time, and the third material conveyor 39 Send the solid was...

Embodiment 2

[0126] The porous sintered heat-insulating hollow block 68 of this embodiment is composed of the following components by weight percentage: 33% of solid waste, 53% of inorganic binder, and 14% of microporous pore-forming agent; the solid waste is fly ash, and the The inorganic binder is river silt, and the microporous pore-forming agent is rice husk.

[0127] The difference between the preparation method of this embodiment and embodiment 1 is:

[0128] Step 3, raw material weighing: when the porous sintered insulating hollow block 68 to be prepared is a non-load-bearing insulating hollow block, the weight ratio of coarse material, medium material and fine material in the solid waste is 6:17: 72. When the porous sintered insulating hollow block 68 to be prepared is a load-bearing insulating hollow block, the weight ratio of coarse material, medium material and fine material in the solid waste is 1:11:85;

[0129] Step 4, mixing and homogenizing and aging: the primary mixture i...

Embodiment 3

[0133] The porous sintered insulating hollow block 68 of this embodiment is composed of the following components in weight percentage: 36% of solid waste, 51% of inorganic binder, and 13% of microporous pore-forming agent; the solid waste is steel slag, and the inorganic The binder is river mud, and the microporous pore-forming agent is polyphenylene particles. Among them, polyphenylene particles can be crushed from waste polyethylene foam.

[0134] The difference between the preparation method of this embodiment and embodiment 1 is:

[0135] Step 3, raw material weighing: when the porous sintered insulating hollow block 68 to be prepared is a non-load-bearing insulating hollow block, the weight ratio of coarse material, medium material and fine material in the solid waste is 8:15: 70; when the porous sintered insulating hollow block 68 to be prepared is a load-bearing insulating hollow block, the weight ratio of coarse material, medium material and fine material in the solid...

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Abstract

The invention discloses a porous sintering heat-insulating hollow block and a manufacturing process thereof. According to the porous sintering heat-insulating hollow block, the void rate is 35 to 60 percent, the density is 700 to 1,000 kg/m<3>, and the coefficient of heat conductivity is less than or equal to 0.22 W/m.K. The porous sintering heat-insulating hollow block consists of the following ingredients in percentage by weight: 30 to 45 percent of solid waste, 45 to 55 percent of inorganic binder and 5 to 15 percent of micropore pore forming agent. The manufacturing process comprises the following steps of: 1, performing grain composition; 2, sieving for grading; 3, weighing raw materials; 4, mixing, homogenizing and aging; 5, extruding for forming; 6, cutting and stacking; 7, drying;and 8, sintering. The porous sintering heat-insulating hollow block is reasonable in design, convenient to realize, high in utilization rate of solid wastes, energy-saving, environment-friendly, highin void rate, low in density, high in thermal performance and strength, stable in size and difficult to crack, can be popularized and used in large areas, and has the excellent economic and social benefits.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a porous sintered heat-insulating hollow block and a preparation process thereof. Background technique [0002] At present, my country's existing construction area has reached 42 billion m 2 and keep about 2 billion m 2 / year huge growth rate. The wall is the most important enclosure structure of the building, and the wall material is the main structural masonry and enclosure material of the building. The wall material accounts for 70% of the main material of the building, and it is the building material with the largest proportion and the most use in the enclosure structure. At present, the total energy consumption of buildings in my country is about 870 million tons of standard coal, accounting for nearly one-third of the total energy consumption of the society. Public buildings are about 5-15 times that of ordinary residential buildings. The incoming ...

Claims

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Application Information

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IPC IPC(8): C04B38/06C04B30/00C04B18/30
CPCY02W30/91
Inventor 权宗刚肖慧
Owner XIAN RES & DESIGN INST OF WALL & ROOF MATERIALS CO LTD
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