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Recycling method of limestone slag and stone powder waste

A technology of limestone and lime powder, which is applied in the field of limestone, can solve the problems of occupying large land, inability to calcine scraps and stone powder, and pollute the environment, and achieve the effects of efficient calcination, improved utilization of limestone resources, and improved mining efficiency

Inactive Publication Date: 2017-11-10
QINGYANG COUNTY YONGCHENG CALCIUM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the process of traditional limestone mining and primary ore processing, a large number of scraps and stone powders that cannot be calcined will be produced. The storage of these scraps and stone powders takes up a lot of land and pollutes the environment. It is necessary to take certain methods to deal with the waste. for recycling

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] A method for regenerating limestone slag and stone powder waste, characterized in that it comprises the following steps: (1) mixing limestone slag and stone powder waste, pulverizing them under a pulverizer, passing the pulverized lime powder through a 150-mesh sieve, Add the binder material into the mixture, and stir it evenly to obtain a mixture, the content of the binder material in the mixture is 5wt%; (2) Press the mixture obtained in step (1) into a regular shape with molding equipment. Further, the binding material in the step (1) is water and powdered calcium oxide, the water content is 5wt%, and the content of powdered calcium oxide in the mixture is 5wt%. Further, the molding equipment in the step (2) is a hydraulic molding machine. Further, the limestone slag waste in step (1) refers to small pieces of limestone slag that cannot be calcined normally in a kiln.

[0010] Further, the mold in the mixture compression molding equipment in the step (2) is cake-sha...

Embodiment 2

[0012] A method for regenerating limestone slag and stone powder waste, characterized in that it comprises the following steps: (1) mixing limestone slag and stone powder waste, crushing them under a pulverizer, passing the crushed lime powder through a 100-mesh sieve, Add the binder material into the mixture, and stir it evenly to obtain a mixture, the content of the binder material in the mixture is 10wt%; (2) Press the mixture obtained in step (1) into a regular shape with molding equipment. Further, the binding material in the step (1) is water and powdered calcium oxide, the water content is 10wt%, and the content of powdered calcium oxide in the mixture is 10wt%. Further, the molding equipment in the step (2) is a hydraulic molding machine. Further, the limestone slag waste in step (1) refers to small pieces of limestone slag that cannot be calcined normally in a kiln.

[0013] Further, in the step (2), the mold in the mixture compression molding equipment is cube-shape...

Embodiment 3

[0015] A method for regenerating limestone slag and stone powder waste, characterized in that it comprises the following steps: (1) mixing limestone slag and stone powder waste, crushing them under a pulverizer, passing the crushed lime powder through a 200-mesh sieve, Add the binder material into the mixture, and stir it evenly to obtain a mixture, the content of the binder material in the mixture is 20wt%; (2) Press the mixture obtained in step (1) into a regular shape with molding equipment. Further, the binding material in the step (1) is water and powdered calcium oxide, the water content is 20wt%, and the content of powdered calcium oxide in the mixture is 20wt%. Further, the molding equipment in the step (2) is a hydraulic molding machine. Further, the limestone slag waste in step (1) refers to small pieces of limestone slag that cannot be calcined normally in a kiln.

[0016] Further, the mold in the mixture compression molding equipment in the step (2) is cylindrical...

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Abstract

The invention provides a method for regenerating limestone slag and stone powder waste, comprising the following steps: (1) mixing limestone slag and stone powder waste, pulverizing under a pulverizer, passing the pulverized lime powder through a 100-200 mesh sieve, and The lime powder is mixed with binding material and stirred evenly to obtain a mixture, the content of the binding material in the mixture is 5-20wt%; (2) The mixture obtained in the step (1) is pressed into a regular shape by molding equipment. In the present invention, limestone slag and stone powder, which are waste materials, are mixed with an appropriate amount of binding material, then stirred, uniformly mixed, and then pressed into regular-shaped brick bodies to achieve high-efficiency calcination, thereby solving the problems of land occupation and environmental pollution, It also realizes the utilization of waste, which significantly improves the efficiency of mining and the utilization of limestone resources.

Description

technical field [0001] The invention belongs to the technical field of limestone, and in particular relates to a regeneration method of limestone slag and stone powder waste. Background technique [0002] In the process of traditional limestone mining and primary ore processing, a large number of scraps and stone powders that cannot be calcined will be produced. The storage of these scraps and stone powders takes up a lot of land and pollutes the environment. It is necessary to take certain methods to deal with the waste. for recycling. Contents of the invention [0003] In order to solve the above problems, the object of the present invention is to provide an indoor sound-absorbing decorative material, the specific technical solution is: [0004] A method for regenerating limestone slag and stone powder waste, characterized in that it comprises the following steps: (1) mixing limestone slag and stone powder waste, crushing them under a pulverizer, passing the crushed lim...

Claims

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Application Information

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IPC IPC(8): C04B2/10
CPCC04B2/104
Inventor 陈永忠
Owner QINGYANG COUNTY YONGCHENG CALCIUM IND
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