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A mining method for low-grade solid potassium ore

A technology of solid potassium ore and mining method, which is applied in ground mining, earth square drilling, underground mining, etc. It can solve problems such as difficult to guarantee brine sources, difficult to use directly, and variable components, so as to achieve the best brine water quality and protection The effect of reducing the skeleton of the ore deposit and the amount of evaporation

Active Publication Date: 2019-07-12
QINGHAI ZHONGHANG RESOURCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The grade of surface solid potassium ore is below 8%, the average grade is about 5.1%, and the mud content is large and the components are variable and difficult to be directly utilized. So far, the mining area has entered the stage of dissolution mining of low-grade solid potassium ore, but as the work continues, The current method of flood irrigation solution mining has gradually highlighted its disadvantages, and it is difficult to guarantee the halogen source required for production

Method used

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  • A mining method for low-grade solid potassium ore
  • A mining method for low-grade solid potassium ore
  • A mining method for low-grade solid potassium ore

Examples

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Comparison scheme
Effect test

Embodiment 1

[0025] Embodiment 1, a kind of mining method of low-grade solid potash ore is characterized in that: it is finished by the following steps:

[0026] The first step, sedimentation: the fresh water is deposited in the sedimentation tank before the fresh water is introduced into the mining area. The sedimentation time is 2.5 days.

[0027] The second step is to prepare the solvent: introduce the fresh water precipitated in the first step into the solvent adjustment area of ​​the mining area, and adjust the Baume degree of the sodium chloride unsaturated solvent to 18%-20% at an average outdoor temperature of 15°C;

[0028] The third step, ore dissolution: introduce the brine with sodium chloride in the second step into the solution mining channel, and the construction of the solution mining channel is in the proposed driving solution mining unit, and the solution mining channel is formed by excavating multiple excavations in parallel on the plane The channels distributed in a clo...

Embodiment 2

[0035] Embodiment 2, a kind of mining method of low-grade solid potash ore is characterized in that: it is completed by the following steps:

[0036] The first step, sedimentation: the fresh water is deposited in the sedimentation tank before the fresh water is introduced into the mining area. The sedimentation time is 3 days.

[0037] The second step is to prepare the solvent: introduce the fresh water precipitated in the first step into the solvent adjustment area of ​​the mining area, and adjust the Baume degree of the sodium chloride unsaturated solvent to 18%-20% at an average outdoor temperature of 25°C;

[0038] The third step, ore dissolution: introduce the brine with sodium chloride in the second step into the solution mining channel, and the construction of the solution mining channel is in the proposed driving solution mining unit, and the solution mining channel is formed by excavating multiple excavations in parallel on the plane The channels distributed in a clot...

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Abstract

The invention discloses a mining method of low-grade solid potassium ore, and relates to the technical field of solid potassium ore mining. The mining method comprises the following steps: I, precipitating; II, introducing brine; III, building a solute brine collecting channel; IV, dissolving ore; V, entering a salt field. The mining method has the beneficial effects that the method is simple, and is easy to operate; solid potassium ore of 30 to 50 millimeters in a mining area can be dissolved well, a solvent can be used for dissolving the ore repeatedly after blending, and the potassium ion yield can be up to 85 percent; meanwhile a saline-lake deposit framework can be effectively protected, geological disasters caused by ore dissolving are avoided, the evaporating amount of fresh water is lowered greatly, and the utilization rate of water resources is increased; the solvent drives the dissolution of the ore along the channel, vertical and lateral dissolving-mining depths are increased, and the digestion liquor level is raised.

Description

[0001] 1. Technical field [0002] The invention relates to the technical field of low-grade solid potassium ore, in particular to a mining method for low-grade solid potassium ore. [0003] 2. Background technology [0004] The grade of surface solid potassium ore is below 8%, the average grade is about 5.1%, and the mud content is large and the components are variable and difficult to be directly utilized. So far, the mining area has entered the stage of dissolution mining of low-grade solid potassium ore, but as the work continues, The current method of flood irrigation solution mining has gradually highlighted its disadvantages, and it is difficult to guarantee the halogen source required for production. [0005] 3. Contents of the invention [0006] For the deficiencies in the prior art the present invention provides a kind of mining method of low-grade solid potash ore, it is characterized in that: it is completed by the following steps: [0007] The first step, sedimen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21C41/26
CPCE21C41/26
Inventor 边红利赵龙胡生忠齐铁盾
Owner QINGHAI ZHONGHANG RESOURCE
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