Industrial waste residue crushing method

A technology of industrial waste residue and crushing method, applied in the field of solid material crushing, can solve the problems of easily damaged crushing machines and particles, low efficiency, etc., and achieve the effect of reducing the difficulty of crushing

Pending Publication Date: 2021-03-09
罗定市宏泰建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems of low efficiency, easily damaged crushing machines and large particles in the existing solid waste crushing methods, the invention discloses a crushing method for industrial waste residues, which can effectively improve the crushing efficiency of industrial waste residues, reduce the difficulty of crushing, and improve Broken fineness

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] This embodiment discloses a method for crushing industrial waste slag, comprising the following steps:

[0043] Mix blast furnace slag, quarry waste, and ceramic factory tiles with each other, put them into a mixer for preliminary mixing, and the stirring speed is 14r / min.

[0044] Heating and heating cycle: The mixture obtained by the initial stirring is crushed by a hammer crushing device for the first time, and the mixture after the primary crushing is heated to 800°C, and liquid water is passed into the inside of the mixture through the pipeline, and the water is heated and vaporized. Export the vaporized water, when the temperature of the mixture drops below 300°C, stop introducing liquid water, the cooling rate is greater than 100°C / min, and then raise the temperature of the mixture to 800°C at a heating rate above 20°C / min, Introduce liquid water into the mixture through the pipeline, the refrigerant is heated and vaporized, and the vaporized refrigerant is expor...

Embodiment 2

[0047] This embodiment discloses a method for crushing industrial waste slag, comprising the following steps:

[0048] Mix blast furnace slag, quarry waste, and ceramic factory tiles with each other, put them into a mixer for preliminary mixing, and the stirring speed is 14r / min.

[0049] Heating and heating cycle: The mixture obtained by the initial stirring is crushed by a hammer crushing device for the first time, the mixture after the primary crushing is heated to 900°C, and liquid nitrogen is introduced into the mixture through the pipeline, and the nitrogen is heated and vaporized. Export the gasified nitrogen, when the temperature of the mixture drops below 300°C, stop introducing liquid nitrogen, the cooling rate is greater than 200°C / min, and then raise the temperature of the mixture to 800°C at a heating rate above 20°C / min, Introduce liquid nitrogen into the mixture through the pipeline, the refrigerant is heated and vaporized, and the vaporized refrigerant is expor...

Embodiment 3

[0052] This embodiment discloses a method for crushing industrial waste slag, comprising the following steps:

[0053] Mix blast furnace slag, quarry waste, and ceramic factory tiles with each other, put them into a mixer for preliminary mixing, and the stirring speed is 14r / min.

[0054] Heating and heating cycle: The mixture obtained by the initial stirring is crushed by a hammer crushing device for the first time, and the mixture after the primary crushing is heated to 700°C, and liquid water is passed into the inside of the mixture through the pipeline, and the water is heated and vaporized. Export the vaporized water, when the temperature of the mixture drops below 300°C, stop introducing liquid water, the cooling rate is greater than 100°C / min, and then raise the temperature of the mixture to 900°C at a heating rate above 50°C / min, Introduce liquid water into the mixture through the pipeline, the refrigerant is heated and vaporized, and the vaporized refrigerant is expor...

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Abstract

The invention discloses an industrial waste residue crushing method, which comprises the following operation steps: mixing various industrial waste residues with one another, and putting the mixture into a stirrer for preliminary stirring; heating and cooling circulation: carrying out primary crushing on the mixture obtained by primary stirring by adopting a hammer type crushing device, heating the mixture subjected to primary crushing to 700 DEG C or above, cooling the mixture to 300 DEG C or below at a cooling speed of 100 DEG C / min or above, heating the mixture to 700 DEG C or above at a heating speed of 20 DEG C / min or above, cooling the mixture to be below 300 DEG C at a cooling speed of 100 DEG C / min or above, and circulating for more than two times; and carrying out secondary crushing on the mixture by adopting a hammer type crushing device, cooling and sieving to obtain industrial waste residue powder. The industrial waste residue crushing method can effectively improve the crushing efficiency of industrial waste residues, reduce the crushing difficulty and improve the crushing fineness.

Description

technical field [0001] The invention relates to the technical field of solid material crushing, in particular to a method for crushing industrial waste residue. Background technique [0002] The micro-expansion admixture reacts with the cement and water in the concrete to produce crystals with larger volumes, which causes the volume of the concrete to expand and generate a certain prestress, which helps to control the shrinkage and cracking of the concrete. The existing micro-expansion admixture is generally made of bauxite as the main material, but its cost is relatively high. In addition, the treatment of solid waste such as quarry waste, ceramic tiles, dehydrated gypsum, converter slag, blast furnace slag and fly ash has always been a difficult problem. How to make full use of the above solid waste and turn waste into treasure has been studied for a long time. question. [0003] Existing quarry waste, ceramic factory tiles, dehydrated gypsum, converter slag, blast furna...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B20/02
CPCC04B20/026C04B18/142C04B18/12C04B18/165
Inventor 陈华才
Owner 罗定市宏泰建材有限公司
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