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Production method of steam-pressure saponification flyash bricks

A technology for fly ash bricks and a production method, applied in the field of building materials, can solve the problems of innocuous treatment, restrict the development of propane, etc., and achieve the effect of solving the sustainable development of the industry, advanced production technology and obvious effect.

Active Publication Date: 2014-02-05
FUJIAN MEIZHOU BAY CHLOR ALKALI IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, landfill and stacking can only be carried out by renting land, and other methods cannot be used for harmless treatment. The problem of waste saponification slag seriously restricts the further development of the propane industry

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] After crushing and grinding 360kg of propylene oxide saponified waste (i.e. saponification slag), add 576kg of stone chips / fly ash, 90kg of binder, and 54kg of light materials to stir and digest with water, and the digested mixture is then passed through Rolled by a wheel mill, then sent to a brick press at 11.0Mpa to pressurize into bricks with a size of 240mm×115mm×90mm, and then sent to high-pressure steam for curing. , took 8 hours. After leaving the kettle, it will be finished product after natural cooling. Product indicators: thermal conductivity: 0.15w (m k); compressive strength (MPa): 4.5 / 3.3 (average value / minimum value of a single block); dry density: 950Kg / m3; drying shrinkage value: 0.41mm / m3; Softening coefficient: 0.79; Radioactivity: 0.4 / 0.6 (internal exposure index / external exposure index).

Embodiment 2

[0021] 120kg of propylene oxide saponified waste (i.e. saponified slag) is crushed and ground, mixed with 192kg of stone chips / fly ash, 30kg of cement, and 18kg of light materials, stirred and digested by adding water, and the digested mixture is then wheel milled Machine rolling, and then sent to the brick press at 11.0Mpa to pressurize into bricks with a size of 240mm×115mm×90mm, and then sent to high-pressure steam for curing. 8 hours. After leaving the kettle, it will be finished product after natural cooling. Product indicators: thermal conductivity: 0.17w (m k); compressive strength (MPa): 4.4 / 3.2 (average value / minimum value of a single block); dry density: 953Kg / m3; drying shrinkage value: 0.43mm / m3; Softening coefficient: 0.8; radioactivity: 0.3 / 0.5 (internal exposure index / external exposure index).

Embodiment 3

[0023] After crushing and grinding 240kg of propylene oxide saponified waste (i.e. saponification slag), add 384kg of stone chips / fly ash, 60kg of cement, and 36kg of light materials to stir and digest with water, and then grind the digested mixture Machine rolling, and then sent to the brick press 11.0Mpa to pressurize into bricks with a size of 240mm×115mm×90mm, and then sent to high-pressure steam for curing. 8 hours. After leaving the kettle, it will be finished product after natural cooling. Product indicators: thermal conductivity: 0.16w (m k); compressive strength (MPa): 4.6 / 3.3 (average value / minimum value of a single piece); dry density: 955Kg / m3; drying shrinkage value: 0.45mm / m3; Softening coefficient: 0.7; Radioactivity: 0.3 / 0.6 (internal exposure index / external exposure index).

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Abstract

The invention discloses a production method of steam-pressure saponification flyash bricks. The method is characterized by comprising the steps of: crushing and grinding waste generated by saponification of epoxypropane, mixing the crushed and ground waste with stone chippings / flayash and binder, adding water, stirring, digesting, rolling, compression moulding through building material machinery, heating with high-pressure steam, reacting the binder with effective components in waste generated by the saponification of epoxypropane under the temperature of about 200 DEG C and the pressure of 1.5-1.6 Mpa, and after reaction, naturally cooling to form the steam-pressure saponification flyash bricks. By adopting the technical scheme, the process is advanced, and has automatic operation and high requirement on equipment; the produced evaporation saponification flyash bricks accord with the requirements of national standard in the aspects of pressure-bearing, heat conduction, radiation and the like after being subjected to examination by the National Institute for Materials Science; the environment protecting problem caused by a situation that the waste generated by the saponification of epoxypropane is stacked in a rented land is solved, the bottleneck problem of sustainable development of an enterprise is solved, and considerable economic benefits can be created for the enterprise.

Description

technical field [0001] The invention relates to the field of building materials, in particular to a production method of autoclaved saponified fly ash bricks. Background technique [0002] The special production process of propylene oxide products determines that in the production process of this product, waste saponification slag will inevitably be produced, and untreated waste saponification slag contains some harmful substances and odors, which will damage and harm the environment to a certain extent. At present, landfill and stacking can only be carried out by renting land, but no harmless treatment can be carried out by other methods. The problem of waste saponification slag seriously restricts the further development of the propane industry. Contents of the invention [0003] The invention provides a production method for producing saponification slag after saponification of propylene oxide to manufacture autoclaved saponification fly ash bricks. [0004] In ord...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/04C04B18/30
CPCY02W30/91
Inventor 陈剑明吴淞波林盛海
Owner FUJIAN MEIZHOU BAY CHLOR ALKALI IND
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