Technology of using asbestos tailings to produce silicon-calcium-magnesium-potassium fertilizer

A technology of silicon calcium magnesium potassium fertilizer and asbestos tailings, applied in the direction of magnesium fertilizer, potassium fertilizer, application, etc., to achieve reasonable steps and reduce environmental hazards

Active Publication Date: 2018-12-18
北京璞域环保科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] According to the above description, there is no introduction about the removal of Cr, which is harmful to soil, in the process of using serpentine to produc

Method used

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  • Technology of using asbestos tailings to produce silicon-calcium-magnesium-potassium fertilizer

Examples

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Example Embodiment

[0018] Take the actual production in Itunbulak Town, Ruoqiang County, Xinjiang as an example:

[0019] A process for producing silicon-calcium-magnesium-potassium fertilizer from asbestos tailings:

[0020] 1) First use a cone crusher to crush the serpentine raw material to about 3 cm, and then add it to the ball mill for ball milling. The milling time is 30-40 min, and the size of the serpentine is controlled to about 250 mesh;

[0021] 2) Add KCl particles to the ball mill, the added amount is one-ninth of the serpentine mass, and continue the ball milling operation for 30 minutes;

[0022] 3) When the particle size of the material in the ball mill is greater than 300 mesh, start to discharge and discharge the material to the winnowing machine;

[0023] 4) The winnowing machine adopts 6kg pressure to perform winnowing for powder;

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Abstract

The invention discloses a technology of using asbestos tailings to produce a silicon-calcium-magnesium-potassium fertilizer. The technology comprises following steps: at first, grinding serpentine bya cone crusher to a size of 3 cm or so; then adding grinded serpentine into a ball milling machine, carrying out ball milling for 30 to 40 minutes, controlling the granularity of serpentine to be 250meshes or so; adding KCl particles into the ball milling machine, wherein the ratio of KCl particles to serpentine is 1:9, carrying out ball milling for 30 minutes, when the granularity of particles in the ball milling machine is greater than 300 meshes, discharging the powder to a winnowing machine, winnowing the powder under a pressure of 6 kg; after winnowing, directly packaging the powder, orusing the powder to product a fertilizer, discharging materials which are not winnowed from the rotating cylinder, and taking non-winnowed materials as a metallurgy raw material. The asbestos tailingsare processed harmlessly, the wastes are converted into valuable resources, and the environmental pollution is reduced.

Description

technical field [0001] The invention relates to a process for producing silicon-calcium-magnesium-potassium fertilizer by using asbestos tailings. Background technique [0002] Asbestos is an important mineral raw material in the process of national economic construction. Asbestos is mostly produced in the serpentinite mineral belt, and every ton of asbestos produced produces 40 tons of tailings waste serpentinite. Asbestos tailings are rich in heavy metals such as Cr, nickel, cobalt, copper, iron, etc., which seriously harm the environment, animals and plants, and are typical hazardous wastes. They are originally produced in the Altun Mountains and Kunlun Mountains in Ruoqiang County, Xinjiang. The composition of asbestos tailings is described in the table below: [0003] [0004] According to the above table, serpentine is a hydrous silicate mineral of magnesium. Its chemical composition is 3MgO 2SiO 2 2H 2 O or MgO[Si 4 o 10 ](OH) 8 , The heavy metal content in...

Claims

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Application Information

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IPC IPC(8): C05D11/00
CPCC05D1/02C05D5/00
Inventor 慕湧李秉勃俞海明吴汉元王强
Owner 北京璞域环保科技有限公司
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