CN104533421A - Method for pressure air recycling of rock salt cavern - Google Patents
Method for pressure air recycling of rock salt cavern Download PDFInfo
- Publication number
- CN104533421A CN104533421A CN201410808442.9A CN201410808442A CN104533421A CN 104533421 A CN104533421 A CN 104533421A CN 201410808442 A CN201410808442 A CN 201410808442A CN 104533421 A CN104533421 A CN 104533421A
- Authority
- CN
- China
- Prior art keywords
- salt
- rock
- pressure
- cavity
- salt cavity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 235000002639 sodium chloride Nutrition 0.000 title claims abstract description 71
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 title claims abstract description 44
- 239000011780 sodium chloride Substances 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000004064 recycling Methods 0.000 title claims abstract description 13
- 150000003839 salts Chemical class 0.000 claims abstract description 28
- 239000002699 waste material Substances 0.000 claims abstract description 22
- 239000007789 gas Substances 0.000 claims description 15
- 238000004519 manufacturing process Methods 0.000 claims description 14
- 241001131796 Botaurus stellaris Species 0.000 claims description 12
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 10
- 229910052736 halogen Inorganic materials 0.000 claims description 9
- 150000002367 halogens Chemical class 0.000 claims description 9
- 239000003345 natural gas Substances 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000000376 reactant Substances 0.000 claims description 2
- 239000007788 liquid Substances 0.000 abstract description 11
- 239000003513 alkali Substances 0.000 abstract description 6
- 239000012267 brine Substances 0.000 abstract description 5
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 abstract description 5
- 238000007670 refining Methods 0.000 abstract description 3
- 239000012263 liquid product Substances 0.000 abstract 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 5
- 239000011575 calcium Substances 0.000 description 5
- 229910052791 calcium Inorganic materials 0.000 description 5
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 4
- 239000001110 calcium chloride Substances 0.000 description 4
- 229910001628 calcium chloride Inorganic materials 0.000 description 4
- 239000013505 freshwater Substances 0.000 description 3
- 239000002893 slag Substances 0.000 description 3
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 238000007738 vacuum evaporation Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C41/00—Methods of underground or surface mining; Layouts therefor
- E21C41/16—Methods of underground mining; Layouts therefor
- E21C41/20—Methods of underground mining; Layouts therefor for rock salt or potash salt
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F15/00—Methods or devices for placing filling-up materials in underground workings
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Remote Sensing (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention provides a method for pressure air recycling of rock salt cavern. According to the method, a gas is pressurized by a compressor to be injected in the top of the inner side of the rock salt cavern, brine in the rock salt cavern is pressed out of the ground under the action of the high-pressure gas along a brine outlet tube inserted in the bottom of the rock salt cavern, the pressed brine is conveyed to a salt refining or alkali making procedure, and the emptied cavern is used for storing salt making or alkali making waste liquid and waste residues, and n rock salt caverns can also be provided. With the adoption of the technical scheme of the invention, a liquid product can be stored or the waste liquid and waste residues can be stored by adequately utilizing the space of the well and rock salt cavern to as to reduce the ground stacking areas of the waste liquid and waste residues, thus protecting environment and reducing cost.
Description
Technical field
The present invention relates to the method for the empty recycling of a kind of Rock-salt Cavity pressure, halogen field adopted by mine.
Background technology
As shown in Figure 1, it comprises typical well mine salt production process: inject salt well extraction saturated bittern with fresh water, and then evaporation or vacuum evaporation obtain solid salt, and produce the salt slurry as waste material.Adopt the rock salt after halogen and form molten chamber, by the water filling of injecting therebetween.
Chinese patent ZL102205979 B discloses the combined cycle production technology utilizing the salt of sodium sulfate type well mine salt, alkali and optional calcium product, utilize the feature producing the molten chamber of Underground Salt need the dissolved salt mining of fresh water underground and mining in well mine salt is produced after, while realizing alkali making from brine, the waste liquid utilizing soda manufacture to produce adopts halogen to replace fresh water to note well, obtain high calcium brine, for the coproduction of salt calcium, sodium chloride and calcium chloride are recycled; And the waste residue that alkaline produces after treatment, inject discarded or be about to storage in discarded Underground Salt chamber, successfully solving soda manufacture and the difficult problem of liquid and waste slag produced process that produces.
The utilization rate in the molten chamber of said method is low, can only reach 50-70%, and must produce calcium product, particularly calcium chloride product while production salt, otherwise device can not run continuously.
Summary of the invention
The object of the invention is to adopt gases at high pressure by empty for the bittern pressure in Rock-salt Cavity, with reach maximum using Rock-salt Cavity to store salt, that alkali is produced is liquid and waste slag produced, only can produce salt, alkali and do not produce calcium product simultaneously.The present invention realizes above-mentioned purpose like this:
The method of the empty recycling of a kind of Rock-salt Cavity pressure, utilize compressor that gas pressurized is injected Rock-salt Cavity inner top, under the effect of gases at high pressure, bittern in Rock-salt Cavity extrudes ground along the halogen pipe that goes out inserted bottom Rock-salt Cavity, the bittern extruded send salt manufacturing to refine or alkaline operation, and the molten chamber vacateed is for storing salt manufacturing solvay liquor waste residue.
Described Rock-salt Cavity can also be n, then, gas pressurized is injected the first rock salt cavity volume inner top by compressor, under the effect of gases at high pressure, bittern in first Rock-salt Cavity extrudes ground through the halogen pipe that goes out inserted bottom Rock-salt Cavity, and the cavity vacateed stores salt manufacturing or solvay liquor waste residue.After first molten chamber pressure sky completes, carry out the pressure sky work in second molten chamber, the rest may be inferred.Above-mentioned gases at high pressure select be insoluble in water and not with the gas of reactant salt, preferred air or need the natural gas storing recycling, pressure, depending on rock salt reservoir depth, is generally 8-30MPa.
For the solvay liquor stored, if having needs later, with gases at high pressure, solvay liquor can be extruded again, produce solid calcium chloride or liquid calcium chloride direct distribution.Adopt technical scheme of the present invention, the molten cavity space of well mine salt can be made full use of, storage of liquids product or deposit waste liquid, waste residue, reduce waste liquid, waste residue ground stacking area, not only protection of the environment but also reduce costs.
Accompanying drawing explanation
Fig. 1 is typical well mine salt production process.
Fig. 2 is that Rock-salt Cavity presses empty process chart.
Detailed description of the invention
embodiment 1
The method of the empty recycling of a kind of Rock-salt Cavity pressure, adopt the empty method of air pressure, utilize compressor pressurizes by the Rock-salt Cavity inner top of air Injection about the 600m of 9.5MPa, under the effect of pressure-air, bittern in Rock-salt Cavity extrudes ground along the halogen pipe that goes out inserted bottom Rock-salt Cavity, the bittern extruded send salt manufacturing refining step, and the molten chamber vacateed stores solvay liquor waste residue.
embodiment 2
The method of the empty recycling of a kind of Rock-salt Cavity pressure, adopt the empty method of natural pressure, the natural gas utilizing compressor pressurizes temporarily to be stored by the need of 9.7MPa injects the Rock-salt Cavity inner top of about 600m, under the effect of high-pressure natural gas, bittern in Rock-salt Cavity extrudes ground along the halogen pipe that goes out inserted bottom Rock-salt Cavity, the bittern extruded send salt manufacturing refining step, and the molten chamber vacateed stores solvay liquor waste residue, displaces natural gas and utilize when depositing liquid and waste slag produced.
Claims (4)
1. the method for the empty recycling of Rock-salt Cavity pressure, it is characterized in that: utilize compressor that gas pressurized is injected Rock-salt Cavity inner top, under the effect of gases at high pressure, bittern in Rock-salt Cavity extrudes ground along the halogen pipe that goes out inserted bottom Rock-salt Cavity, the bittern extruded send salt manufacturing to refine or alkaline operation, and the molten chamber vacateed is for storing salt manufacturing solvay liquor waste residue.
2. the method for the empty recycling of Rock-salt Cavity pressure according to claim 1, it is characterized in that: described Rock-salt Cavity can also be n, then, gas pressurized is injected the first Rock-salt Cavity inner top by compressor, and under the effect of gases at high pressure, the bittern in the first Rock-salt Cavity extrudes ground through the halogen pipe that goes out inserted bottom Rock-salt Cavity, the cavity vacateed stores salt manufacturing or solvay liquor waste residue, after first molten chamber pressure sky completes, carry out the pressure sky work in second molten chamber, the rest may be inferred.
3. the method for the empty recycling of Rock-salt Cavity according to claim 1 and 2 pressure, is characterized in that: gases at high pressure choosing be insoluble in water and not with the gas of reactant salt, as air maybe can store the natural gas of recycling.
4. the method for the empty recycling of Rock-salt Cavity pressure according to claim 1 and 2, is characterized in that: the pressure of gases at high pressure, depending on rock salt reservoir depth, is generally 8-30MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410808442.9A CN104533421A (en) | 2014-12-24 | 2014-12-24 | Method for pressure air recycling of rock salt cavern |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410808442.9A CN104533421A (en) | 2014-12-24 | 2014-12-24 | Method for pressure air recycling of rock salt cavern |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104533421A true CN104533421A (en) | 2015-04-22 |
Family
ID=52849021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410808442.9A Pending CN104533421A (en) | 2014-12-24 | 2014-12-24 | Method for pressure air recycling of rock salt cavern |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104533421A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111069221A (en) * | 2019-12-30 | 2020-04-28 | 重庆大学 | Salt cavern system is backfilled to alkali cinder |
| CN114933318A (en) * | 2022-04-18 | 2022-08-23 | 中盐金坛盐化有限责任公司 | Method and device for preparing brine salt by using micron and nanometer bubbles |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101265801A (en) * | 2008-05-06 | 2008-09-17 | 西南石油大学 | Oil gas well gas injection oil extraction gas production technological process |
| CN102205979A (en) * | 2011-01-13 | 2011-10-05 | 江苏井神盐化股份有限公司 | Salt, alkali and calcium combined cycle production technology by the use of well mineral salt |
| CN102434141A (en) * | 2011-09-16 | 2012-05-02 | 化工部长沙设计研究院 | Method for mining sylvite in underground carnallite ore |
| US20140326354A1 (en) * | 2008-06-17 | 2014-11-06 | Pinnacle Postash International, Ltd. | Method and System for Solution Mining |
-
2014
- 2014-12-24 CN CN201410808442.9A patent/CN104533421A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101265801A (en) * | 2008-05-06 | 2008-09-17 | 西南石油大学 | Oil gas well gas injection oil extraction gas production technological process |
| US20140326354A1 (en) * | 2008-06-17 | 2014-11-06 | Pinnacle Postash International, Ltd. | Method and System for Solution Mining |
| CN102205979A (en) * | 2011-01-13 | 2011-10-05 | 江苏井神盐化股份有限公司 | Salt, alkali and calcium combined cycle production technology by the use of well mineral salt |
| CN102434141A (en) * | 2011-09-16 | 2012-05-02 | 化工部长沙设计研究院 | Method for mining sylvite in underground carnallite ore |
Non-Patent Citations (1)
| Title |
|---|
| 王清明: "怎样开采盐矿", 《井矿盐技术》, 29 August 1979 (1979-08-29) * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111069221A (en) * | 2019-12-30 | 2020-04-28 | 重庆大学 | Salt cavern system is backfilled to alkali cinder |
| CN114933318A (en) * | 2022-04-18 | 2022-08-23 | 中盐金坛盐化有限责任公司 | Method and device for preparing brine salt by using micron and nanometer bubbles |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150422 |
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| RJ01 | Rejection of invention patent application after publication |