CN104355324A - Lake salt lean ore mining process - Google Patents
Lake salt lean ore mining process Download PDFInfo
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- CN104355324A CN104355324A CN201410438849.7A CN201410438849A CN104355324A CN 104355324 A CN104355324 A CN 104355324A CN 201410438849 A CN201410438849 A CN 201410438849A CN 104355324 A CN104355324 A CN 104355324A
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- ditch
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- lake
- lean ore
- moisturizing
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Abstract
The invention relates to a lake salt lean ore mining process. The lake salt lean ore mining process is characterized by comprising the following steps: firstly, piling up a water supplement ditch above the ground plane in a lake salt lean ore region, wherein fresh water is stored in the water supplement ditch; secondly, digging a halogen collection ditch below the ground plane in the lean ore region so as to use the water level height difference between the water supplement ditch and the halogen collection ditch to enable salt deposits dissolved by the fresh water in the water supplement ditch to be collected in the halogen collection ditch through lateral seepage, wherein the distance between the water supplement ditch and the halogen collection ditch is not larger than 180 m; thirdly, pumping the dissolved salt deposits in the halogen collection ditch into a salt lake through a pump. The lake salt lean ore mining process provided by the invention develops and uses lean ore resources in the salt lake, has the advantages of low investment, high yield, pollution-free mining and the like, can save the resources, improves the resource recovery rate of the resources, prolongs the service life of the salt lake, and enhances the economic benefits of mining. Trials show that the resource recovery rate of the lean ore can reach more than 90% by using the lake salt lean ore mining process provided by the invention.
Description
Technical field
The present invention relates to a kind of lake salt lean ores exploitation technique.
Background technology
China's salt industry aboundresources, mainly contains sea salt, well mine salt, lake salt, and lake salt is mainly distributed in the ground such as the Inner Mongol, Xinjiang, Qinghai.In recent years, along with the fast development of economy, to the recovery rate of resource also in continuous quickening.The molten exploiting field of such as Jilantai Salt Lake is positioned at west outside planning exploiting field, salt lake, northwest and the north, and the total area is about 7km
2, salt layer thickness 0-4m, salt deposit is discontinuous, and inclusion is many, has the geologic reserve more than 2,000 ten thousand tons of time limit economy of control.Because husky thickness is covered between 0.5-1.5m in salt deposit top, from the viewpoint of salt layer thickness, structure distribution, production technique and economic benefit etc., still there is no both economical production practice at present.
Summary of the invention
The object of this invention is to provide a kind of lake salt lean ores exploitation technique, the saving of lake salt resource can be realized, improve the rate of extraction of lake salt resource, extend salt lake working life.
A kind of lake salt lean ores exploitation technique, its special feature is: pile up a moisturizing ditch above the ground level first in the lean ore district in salt lake, fresh water is stored in this moisturizing ditch, then a Ji Lugou is excavated being not more than with this moisturizing ditch below the ground level in the lean ore district at 180 meters of apart, thus ooze to collect in by side after utilizing the fresh water in the elevation of water surface official post moisturizing ditch between moisturizing ditch and collection halogen ditch to be dissolved by the salt deposit in lean ore district and collect in halogen ditch, finally in use pump suction salt lake.
Wherein the degree of depth of Ji Lugou is identical with the lean ore district maximum salt layer thickness in salt lake.
Hydraulic gradient wherein between moisturizing ditch and collection halogen ditch is 0.2%, and the water level discrepancy in elevation of moisturizing ditch and Ji Lugou is not less than 0.4m.
Wherein the length of Ji Lugou is 2000m, degree of depth 3.0m, width 5-6m.
The invention provides a kind of exploitation, utilize the technique of lean ore resource in salt lake, there is investment low, the features such as output capacity is high, pollution-free exploitation, the saving of resource can be realized, improve the rate of extraction of resource, extend salt lake working life, promote the economic benefit of exploitation.Through probationary certificate, adopt present invention process can reach more than 90% to the rate of extraction of lean ore.
Accompanying drawing explanation
Accompanying drawing 1 is principle schematic of the present invention.
Embodiment
The invention provides a kind of lake salt lean ores exploitation technique, first a moisturizing ditch is piled up above the ground level in the lean ore district in salt lake, fresh water is stored in this moisturizing ditch, then a Ji Lugou is excavated being not more than with this moisturizing ditch below the ground level in the lean ore district at 180 meters of apart, thus ooze to collect in by side after utilizing the fresh water in the elevation of water surface official post moisturizing ditch between moisturizing ditch and collection halogen ditch to be dissolved by the salt deposit in lean ore district and collect in halogen ditch, finally in use pump suction salt lake.Clearly, the fresh water in moisturizing ditch can supplement as required.
Wherein the degree of depth of Ji Lugou is identical with the lean ore district maximum salt layer thickness in salt lake.Hydraulic gradient between moisturizing ditch and collection halogen ditch is 0.2%, and the water level discrepancy in elevation of moisturizing ditch and Ji Lugou is not less than 0.4m.According to the porosity of lean ore district salt deposit, the permeability coefficient of bittern, draw infiltration capacity every day, thus draw collection halogen ditch specification.In order to expand water-carrying section, the length of moisturizing ditch, Ji Lugou gets the maximum value 2000m in this region, degree of depth 3.0m, width 5-6m.
Embodiment 1:
Below for Jilantai Salt Lake.
Specifically pile up a moisturizing ditch at correct position place of lean ore district, salt lake, underground water (fresh water) is stored in moisturizing ditch, and can recharge of groundwater at any time as required.At moisturizing ditch at a distance of 180 meters of, dig the Ji Lugou of a dark 3m, the artificial water level discrepancy in elevation increased in moisturizing ditch and collection halogen ditch.Because Jilantai Salt Lake halite porosity is 30.3%, fresh water in such moisturizing ditch can be flowed to the direction that potential energy is low by potential energy eminence, potential energy consumes except portion of energy except overcoming friction, all the other will be converted into pressure energy, the fresh water filled into fully is contacted with subterraneous salt deposit, dissolved by salt deposit, the moisturizing after dissolved salt is oozed by side and is collected in collection halogen ditch, with in pump suction salt lake.Utilize strong, the natural climate such as steam output is large at In Jilantai Region sunshine, regenerant salt (the new salt after regenerant salt and saturated bittern evaporative crystallization) is produced in spontaneous evaporation crystallization.
Concrete technical parameter is as follows:
1, moisturizing ditch and Ji Lugou distance: Jilantai Salt Lake day the drawdown radius of influence be 180 meters;
2, halogen trench depth 3 meters is collected: maximum 3 meters of Jilantai Salt Lake lean ore district salt layer thickness
3, moisturizing ditch and the collection halogen ditch water level discrepancy in elevation: hydraulic gradient is 0.2%, and the water level discrepancy in elevation of moisturizing ditch and Ji Lugou is not less than 0.4m, can ensure that in moisturizing ditch, water permeation is in collection halogen ditch.
4, moisturizing ditch and collection halogen ditch spacing 180m;
5, moisturizing ditch, collection halogen ditch depth 3.0m, wide 6m, long 2000m;
Effect is as follows:
1, after project puts into operation, filling into the water yield in moisturizing ditch is every year 12,000,000 m
3, in bittern, sodium chloride content is about 0.280kg/m
3, about 0.34 ten thousand ton, sodium-chlor can be brought into every year in salt lake, by sodium-chlor eduction rate 95%, annual crystallizable production regenerant salt 0.32 ten thousand ton.
2, vitalize resource reserve, dissolved salt moisturizing engineering molten exploiting field area is about 7km
2, the average 1.5m of salt layer thickness, the rate of extraction 70%, the rate of recovery 50%, 367.5 ten thousand tons, extractable salt lake lean ore.
Claims (4)
1. a lake salt lean ores exploitation technique, it is characterized in that: above the ground level first in the lean ore district in salt lake, pile up a moisturizing ditch, fresh water is stored in this moisturizing ditch, then a Ji Lugou is excavated being not more than with this moisturizing ditch below the ground level in the lean ore district at 180 meters of apart, thus ooze to collect in by side after utilizing the fresh water in the elevation of water surface official post moisturizing ditch between moisturizing ditch and collection halogen ditch to be dissolved by the salt deposit in lean ore district and collect in halogen ditch, finally in use pump suction salt lake.
2. lake salt lean ores exploitation technique as claimed in claim 1, is characterized in that: wherein the degree of depth of Ji Lugou is identical with the lean ore district maximum salt layer thickness in salt lake.
3. lake salt lean ores exploitation technique as claimed in claim 1 or 2, is characterized in that: the hydraulic gradient wherein between moisturizing ditch and collection halogen ditch is 0.2%, and the water level discrepancy in elevation of moisturizing ditch and Ji Lugou is not less than 0.4m.
4. lake salt lean ores exploitation technique as claimed in claim 3, is characterized in that: wherein the length of Ji Lugou is 2000m, degree of depth 3.0m, width 5-6m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410438849.7A CN104355324A (en) | 2014-09-01 | 2014-09-01 | Lake salt lean ore mining process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410438849.7A CN104355324A (en) | 2014-09-01 | 2014-09-01 | Lake salt lean ore mining process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104355324A true CN104355324A (en) | 2015-02-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410438849.7A Pending CN104355324A (en) | 2014-09-01 | 2014-09-01 | Lake salt lean ore mining process |
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| CN (1) | CN104355324A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109928446A (en) * | 2019-04-22 | 2019-06-25 | 中蓝长化工程科技有限公司 | A kind of concentration basin in salt lake lake table brine lake pool |
| CN115837395A (en) * | 2022-11-14 | 2023-03-24 | 东华工程科技股份有限公司 | Treatment method for byproduct sodium chloride tail salt after lithium extraction in salt lake |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102041988A (en) * | 2009-10-16 | 2011-05-04 | 中国地质科学院矿产资源研究所 | Multistage driving ore dissolving method for salt mine exploitation |
-
2014
- 2014-09-01 CN CN201410438849.7A patent/CN104355324A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102041988A (en) * | 2009-10-16 | 2011-05-04 | 中国地质科学院矿产资源研究所 | Multistage driving ore dissolving method for salt mine exploitation |
Non-Patent Citations (1)
| Title |
|---|
| 潘竟忠等: "内陆湖盐矿床人工补水工艺探索", 《盐业与化工》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109928446A (en) * | 2019-04-22 | 2019-06-25 | 中蓝长化工程科技有限公司 | A kind of concentration basin in salt lake lake table brine lake pool |
| CN109928446B (en) * | 2019-04-22 | 2021-08-31 | 中蓝长化工程科技有限公司 | Concentration tank in salt lake surface brine lake water area |
| CN115837395A (en) * | 2022-11-14 | 2023-03-24 | 东华工程科技股份有限公司 | Treatment method for byproduct sodium chloride tail salt after lithium extraction in salt lake |
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Application publication date: 20150218 |