Soil conditioner as well as preparation method and use method thereof

A soil improver and improver technology, applied in the field of soil remediation, can solve the problems of cumbersome and complex calculations, high quality and precision requirements for mixing equipment and metering equipment, and achieve simple calculations, low requirements, and improved passivation The effect of heavy metal abilities

Active Publication Date: 2019-08-02
SHENZHEN MPD HITECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned soil conditioner must first know the exact content of acidic and alkaline oxides contained in various raw materials, as well as the accurate calorific value and empirical value of anthracite before calculation, and accurate calc

Method used

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  • Soil conditioner as well as preparation method and use method thereof
  • Soil conditioner as well as preparation method and use method thereof
  • Soil conditioner as well as preparation method and use method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0070] Soil conditioner, this conditioner comprises the following components by weight percentage:

[0071] Copper tailings 60%

[0072] Fluorite tailings 30%

[0073] Talc 6%

[0074] Carboxymethyl Cellulose 4%

[0075] Among them, the particle size of each component in the modifier is less than 0.5mm, accounting for more than 90%;

[0076] The preparation method of soil conditioner comprises the following steps:

[0077] Step 1. Weigh each component and mix well;

[0078] Step 2, the mixture obtained in step 1 is made into 5-10mm pellets;

[0079] Step 3, calcining the pellets at a temperature of 1300° C. for 2.5 hours;

[0080] Step 4, cooling and activating the pellets, and ball milling to 100 mesh to obtain a soil conditioner.

[0081] Wherein, when the particle size of more than 10% of the added tailings is larger than 0.5 mm, ball milling can be carried out in step 1 first, and ball milling is performed until more than 90% of the particle size of each component i...

Embodiment 2

[0083] Soil conditioner, this conditioner comprises the following components by weight percentage:

[0084] Copper tailings 50%

[0085] Fluorite tailings 27%

[0086] Talc 20%

[0087] Carboxymethyl Cellulose 3%

[0088] Among them, the particle size of each component in the modifier is less than 0.5mm, accounting for more than 90%;

[0089] Soil conditioner preparation methods such as figure 1 shown, including the following steps:

[0090] Step 1. Weigh each component and mix well;

[0091] Step 2, the mixture obtained in step 1 is made into 50-100mm pellets;

[0092] Step 3, calcining the pellets at a temperature of 1150° C. for 2.0 hours;

[0093] Step 4, cooling and activating the pellets, and ball milling to 50 mesh to obtain a soil conditioner.

[0094] Wherein, when the particle size of more than 10% of the added tailings is larger than 0.5 mm, ball milling can be carried out in step 1 first, and ball milling is performed until more than 90% of the particle siz...

Embodiment 3

[0096] Soil conditioner, this conditioner comprises the following components by weight percentage:

[0097] Copper tailings 40%

[0098] Fluorite tailings 40%

[0099] Talc 15%

[0100] Carboxymethyl Cellulose 5%

[0101] Among them, the particle size of each component in the modifier is less than 0.5mm, accounting for more than 90%;

[0102] The preparation method of soil conditioner comprises the following steps:

[0103] Step 1. Weigh each component and mix well;

[0104] Step 2, the mixture obtained in step 1 is made into 5-10mm pellets;

[0105] Step 3, calcining the pellets at a temperature of 1000° C. for 1.5 hours;

[0106] Step 4, cooling and activating the pellets, and ball milling to 60 mesh to obtain a soil conditioner.

[0107] Wherein, when the particle size of more than 10% of the added tailings is larger than 0.5 mm, ball milling can be carried out in step 1 first, and ball milling is performed until more than 90% of the particle size of each component i...

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Abstract

The invention relates to the technical field of soil remediation, in particular to a soil conditioner as well as a preparation method and use method thereof. The soil conditioner comprises the following components in percentage by weight: 40-60% of copper tailings, 20-40% of fluorite tailings or limestone, 6-20% of talc, serpentine or dolomite, and 2-5% of a pellet curing agent, wherein the totalweight is 100%; and the copper tailings include quartz, alunite and dickite. The preparation method comprises the following steps: step 1, weighing the components and mixing the components uniformly;sep 2, preparing the mixture obtained in the step 1 into pellets; step 3, calcining the pellets at a temperature of at least 1000 DEG C for at least 1.5 hours; and step 4, cooling activated pellets and performing ball milling to obtain the soil conditioner. The soil container contains non-ferrous metal and non-metallic ores, various major, medium and trace elements necessary for the growth of crops, fruit trees and seedlings, and basically no additional major, medium and trace elements need to be added.

Description

technical field [0001] The invention relates to the technical field of soil restoration, in particular to a soil conditioner and its preparation method and application method. Background technique [0002] Soil and its basic functions: ① Nutrient function: soil provides basic mineral element nutrients and organic nutrients to plant growth - the natural fertility of the soil. ②Structure and function: The loose and porous soil and the special aggregate structure ensure the growth of plant roots, water and fertilizer retention, and ventilation. ③Environmental function: Soil provides the ecosystem and environmental conditions necessary for plant growth (including pH value, cation exchange capacity, biological activity, microbial community, etc.), which is also necessary for human survival, the goal of the "Ten Articles of Soil". [0003] my country's soil has been severely degraded due to overuse: acidification, compaction, salinization, fertility loss, nutrient element imbalan...

Claims

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Application Information

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IPC IPC(8): C09K17/40C09K17/08C05G3/04C05G3/80
CPCC09K17/40C09K17/08C05D5/00C05D1/04C05D3/02C09K2101/00C05G3/80
Inventor 邵宗强黄燕生
Owner SHENZHEN MPD HITECH CO LTD
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