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Method for preparing soil conditioner by utilizing steel slag

A soil conditioner and steel slag technology, applied in the field of comprehensive utilization of resources, can solve the problems of high wear resistance index, high processing cost, high steel slag hardness, etc., and achieve the effects of improving fertility, increasing yield and quality, and low production cost

Inactive Publication Date: 2010-10-20
SHANXI TAIGANG STAINLESS STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although steel slag can achieve the purpose of recycling by producing steel slag powder, due to the high hardness of steel slag, high wear resistance index, high energy consumption, high processing cost, and insignificant economic benefits; steel slag is used for road paving and building materials, etc. Due to the existence of f-CaO, it causes problems such as cracking, which limits the amount and use

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0006] Example: Sieve the steel slag, mix the steel slag with a particle size of <3 mm at 30% by weight, and 70% by weight of vinegar fermented rice, mix the prepared raw materials and use a cylinder pelletizer to make pellets, granulate, and package .

[0007] Vinegar is the residue left after brewing vinegar.

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Abstract

The invention discloses a method for preparing a soil conditioner by utilizing steel slag, belonging to the field of comprehensive utilization of resources, and comprising the following five steps: screening, burdening, mixing, pelletizing and bagging. The method for preparing the soil conditioner by utilizing the steel slag is characterized by screening out steel slag with the size less than 3 mm, burdening 25-40 wt% of the steel slag and 75-60 wt% of vinegar residue, mixing, and utilizing a cylindrical pelletizer to carrying out pelletizing and granulating. The invention can process the steel slag in large scale, improves soil fertility, improves crop output and quality, has low manufacture cost and realizes the purpose of industrially using waste to treat waste.

Description

Technical field: [0001] The invention belongs to the field of resource comprehensive utilization. technical background: [0002] With the sustained and rapid growth of steel production, a large increase in metallurgical slag has put more and more pressure on steel companies and brought a huge load to the environment. Although steel slag can achieve the purpose of recycling by producing steel slag powder, due to the high hardness of steel slag, high wear resistance index, high energy consumption, high processing cost, and insignificant economic benefits; steel slag is used for road paving and building materials, etc. Due to the existence of f-CaO, problems such as cracking are caused, which limit the dosage and application. How to use steel slag and turn waste into treasure is an urgent problem we need to solve. Invention content: [0003] In order to broaden the way of steel slag utilization, the invention provides a method for making soil conditioner by using steel slag...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/04C05G3/80
Inventor 樊猛辉史永林叶文成李建军仪桂兰赵海泉
Owner SHANXI TAIGANG STAINLESS STEEL CO LTD
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