CN102745722A - Novel three-proofing salt field and construction method thereof - Google Patents
Novel three-proofing salt field and construction method thereof Download PDFInfo
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- CN102745722A CN102745722A CN2012102525293A CN201210252529A CN102745722A CN 102745722 A CN102745722 A CN 102745722A CN 2012102525293 A CN2012102525293 A CN 2012102525293A CN 201210252529 A CN201210252529 A CN 201210252529A CN 102745722 A CN102745722 A CN 102745722A
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Abstract
The invention discloses a novel three-proofing salt field and a construction method of the three-proofing salt field. The salt field is formed by the enclosing of a soil layer bottom plate and an earth dam. The novel three-proofing salt field is characterized in that anti-seepage cloths are paved inside and on the top of the soil field bottom plate and the earth dam; the anti-seepage cloths are closely welded; a rain-proof film is arranged on the top part of the salt field, and the rain-proof film is dragged by a steel wire rope; and a layer of KCl crystalline is covered on the anti-seepage cloth on the bottom part of the salt field as a strength layer. The invention further relates to a construction method for the novel three-proofing salt field. The salt field provided by the invention is not affected by device grinding, soil and weather, not only can be used in an arid region with less rainfall, but also can be used for evaporating a crystallization residue solution by a salt field technology in a region with more rainfall. According to the anti-seepage technology provided by the invention, the mother liquor can be prevented from leaking, and the environment protection is facilitated. According to an effective anti-pressure technology, a large device can be used for achieving a mechanical operation, so that the working efficiency is greatly improved, and the effects of preventing seepage, pressure and rainfall can be realized.
Description
Technical field
The present invention relates to a kind of salt pan, particularly a kind of novel antiseep, anti-novel three anti-salt pans of pressing, preventing rainwater; The invention still further relates to the construction method in these novel three anti-salt pans.
Background technology
In the prior art, mainly contain the mother liquor that dual mode is handled salt mine processing, a kind of is to adopt salt pan spontaneous evaporation crystallization, and this method is useful in the few dry area of rainfall, is usually used in salt lakes such as the western Qinghai of China, Xinjiang.Second method is to adopt the strong evaporation of vaporizer heating, and this method weatherproof can be abundant local use of rainfall.But this method needs manual work to add the heat rejection significant amount of energy, and production cost strengthens, and the performance of enterprises reduces.
Summary of the invention
Technical problem to be solved by this invention is the deficiency to prior art, provide a kind of structure design more reasonable, receive factor affecting such as weather, environment little novel three prevent salt pans.
Another technical problem to be solved by this invention has provided the construction method in above-mentioned novel three anti-salt pans, can effectively solve rainproof, the antiseepage in salt pan, anti-pressure problem.
Technical problem to be solved by this invention is to realize through following technical scheme.The present invention is a kind of novel three anti-salt pans, and this salt pan is enclosed by soil layer base plate and earth dam and constitutes, and be characterized in: base plate, earth dam inboard and top thereof are equipped with antiseepage cloth in the salt pan, carry out tight welding between the antiseepage cloth; The rain film of setting up defences at the top, salt pan, rainproof film adopts rope traction; On salt pan bottom antiseepage cloth, cover one deck KCl xln as the intensity layer.
In the of the present invention novel three anti-salt pan technical schemes: can also build anti-sewer on every side in the salt pan.Antiseepage bottom of trench standard laid down by the ministries or commissions of the Central Government height preferably is lower than bottom, salt pan absolute altitude 150-300mm, further preferably is lower than bottom, salt pan absolute altitude 200mm., infiltration or flooded conditions, prevent that bittern from flowing out contaminate environment when appearring in the salt pan as collecting mother liquor.
In the of the present invention novel three anti-salt pan technical schemes: the thickness of preferred intensity layer is more than the 200mm, and its ultimate compression strength is not less than 5MPa.
The invention also discloses construction methods a kind of as above technical scheme described novel three anti-salt pans, be characterized in:
(1) antiseep: at first base plate original soil layer in salt pan is carried out smooth rolling, through destroying the effect that the inner capillary structure of soil layer plays antiseep; Then at salt pan bottom and earth dam inboard and top laying antiseepage cloth, and, prevent the bittern seepage to carrying out tight welding between the antiseepage cloth;
(2) rainproof: top, the salt pan rain film of setting up defences at first, rainproof film adopts rope traction, and rainproof film was received in the earth dam limit when fine day had steam output, and rainfall covers above the whole salt pan with rope traction before arriving, and prevents precipitation entering salt pan;
(3) the anti-pressure: on salt pan bottom antiseepage cloth, cover one deck KCl xln as the intensity layer.
In the construction method technical scheme in above-described novel three anti-salt pans: can also build anti-sewer in the salt pan on every side, antiseepage bottom of trench standard laid down by the ministries or commissions of the Central Government height preferably is lower than bottom, salt pan absolute altitude 150-300mm.
The present invention can select idle land to build the salt pan, and range size is confirmed according to bittern amount and steam output.The salt pan base plate is carried out smooth rolling, carry out antiseepage through destroying soil layer construction, build the clay dam, the mother liquor amount that height of dam is put into according to needs in the salt pan is confirmed, generally gets 1 ~ 10m and does not wait.In the salt pan, lay antiseepage cloth, and require the tight mother liquor seepage that prevents of antiseepage cloth welding, cause environmental pollution with inboard, dam and top.The rain film of setting up defences at the top, salt pan, rainproof film adopts rope traction, and rainproof film was received in the earth dam limit when fine day had steam output.Preceding the covering with rope traction of rainfall arrival prevents above the whole salt pan that precipitation from getting into the salt pan.On salt pan bottom antiseepage cloth, cover one deck KCl xln as the intensity layer.When intensity layer ultimate compression strength when 5MPa is above, can satisfy the operation of shovel loader equipment, operation in the above can be played the effect of protection antiseepage cloth.
Salt pan of the present invention does not receive at the mother liquor of handling salt mine processing that salt-field collection equipment rolls, soil and climatic influences.Not only can use, more can utilize salt pan technology evaporative crystallization mother liquor in the area that more rainfall is arranged in the few dry of rainfall.The present invention's technology adopts effective water seepage-proof tech to guarantee that mother liquor does not leak, and is more conducive to environment protection.Effectively anti-pressure technology can utilize the main equipment mechanized to increase work efficiency greatly.Thereby realize effective antiseep, the anti-pressure and anti-rainwater effect.
Description of drawings
Fig. 1 is a kind of structural representation in the present invention novel three anti-salt pans.
Embodiment
Following with reference to accompanying drawing, further describe technical scheme of the present invention, so that the technician in present technique field further understands the present invention, and do not constitute restriction to right of the present invention.
Embodiment 1, and with reference to Fig. 1, a kind of novel three anti-salt pans, this salt pan are enclosed by soil layer base plate 1 and earth dam 3 and constitute, and base plate 1, earth dam 3 inboards and top thereof are equipped with antiseepage cloth 4 in the salt pan, carry out tight welding between the antiseepage cloth 4; The rain film 5 of setting up defences at the top, salt pan, rainproof film 5 adopts rope tractions; On salt pan bottom antiseepage cloth 4, cover one deck KCl xln as intensity layer 6.
Embodiment 2, embodiment 1 described novel three anti-salt Tanaka: build anti-sewer 2 around in the salt pan.
Embodiment 3, and embodiment 2 described novel three anti-salt Tanakas: anti-sewer 2 bottom absolute altitudes are lower than bottom, salt pan absolute altitude 150mm.
Embodiment 4, and embodiment 2 described novel three anti-salt Tanakas: anti-sewer 2 bottom absolute altitudes are lower than bottom, salt pan absolute altitude 300mm.
Embodiment 5, and embodiment 2 described novel three anti-salt Tanakas: anti-sewer 2 bottom absolute altitudes are lower than bottom, salt pan absolute altitude 200mm.
Embodiment 6, and any one described novel three anti-salt Tanaka of embodiment 1-5: the thickness of intensity layer 6 is more than the 200mm, and its ultimate compression strength is not less than 5MPa.
Embodiment 7, the construction method in a kind of embodiment 1 or 2 or 6 described novel three anti-salt pans,
(1) antiseep: at first base plate original soil layer in salt pan is carried out smooth rolling, through destroying the effect that the inner capillary structure of soil layer plays antiseep; Then at salt pan bottom and earth dam inboard and top laying antiseepage cloth, and, prevent the bittern seepage to carrying out tight welding between the antiseepage cloth;
(2) rainproof: top, the salt pan rain film of setting up defences at first, rainproof film adopts rope traction, and rainproof film was received in the earth dam limit when fine day had steam output, and rainfall covers above the whole salt pan with rope traction before arriving, and prevents precipitation entering salt pan;
(3) the anti-pressure: on salt pan bottom antiseepage cloth, cover one deck KCl xln as the intensity layer.
Embodiment 8, and in the construction method in embodiment 7 described novel three anti-salt pans: build anti-sewer around in the salt pan, antiseepage bottom of trench standard laid down by the ministries or commissions of the Central Government height is absolute altitude 150-300mm in the bottom, salt pan.
Embodiment 9, novel three anti-salt pans and construction method experiment thereof.
Certain carnallitite sylvite ore is positioned at Laos everything Plain.The mining area is a tropical rainy climate, and weather is damp and hot, the long summer does not have the winter, spring and autumn is extremely short.31 ℃ of the annual highest temperatures, 22.3 ℃ of the lowest temperatures, annual weather sweltering heat in 3-May, the highest temperature is to reach April about 34.4 ℃, and 5-9 month weather is damp and hot, and February November to next year is nice and cool (21.4 ℃-21.9 ℃) relatively.921.80-1402.1 millimeters of year steam output, average 1228.70 millimeters.1278.30-2493.50 millimeters of annual rainfalls, wherein concentrate on rainy season (6-October) by average 1822.70 millimeters more than 85%.People and animals are many to be the domestic water water source with Quaternary system shallow-layer pore water, and agricultural is the water source with the surface water, and shallow-layer pore water and surface water have received the pollution of sanitary wastewater and pesticide irrigation-ing water to some extent.The face of land is Quaternary system (Q) table soil, mainly is modern valley flat alluvial deposits: sallow, greyish white smalt, sand, sandy clay, thick 2-8 meters.In order to prevent polluted surface water system and underground water, must carry out anti-seep measure.
Because rainfall is more in the scope of mining area, adopts general salt pan can't satisfy the evaporation requirement, the general scheme of the strong evaporation of artificial heating that adopts is handled mother liquor.Mine capacity is the KCl of 50kt/a, needs corresponding every year the amount of evaporation to be about 400,000 t.Mother liquor proportion is 1.27.Adopting artificial strong evaporation to need the equipment steam capability is 60t/h, needs consumption 14715t coal.Because the mining area is in the torrid areas bigger steam output is arranged, and concentrate rainy season be convenient to rainproof.This area is scarcely populated to have a large amount of idle lands, satisfies environmental requirement as long as carry out anti-seep measure, is fit to adopt of the present invention three anti-salt pan technology.
According to annual steam output demand, design salt pan area is 10.5 ten thousand m
2, the wide 210m of the long 500m in salt pan.At first in selected build salt pan scope, carry out the ground leveling and roll, leveling thickness is 0.3m, and the original capillary structure of Quaternary system (Q) topsoil is destroyed the effect of playing the part antiseepage.In the scope of salt pan through rolling after around build earth dam, according to the mother liquor amount calculating needs earth dam height 3.0m that annual needs evaporate, the wide 0.5m of dam crest, dam bottom width 12.5m.The concrete walls that the inner 300mm of employing of earth dam is thick guarantee the intensity and the stability of dam body.
After dam body is built and accomplished, in bottom, salt pan and dam body, survey and lay antiseepage cloth, its material is that two cloth, one film impermeabilisation is strong.Adopt welding to ensure anti-seepage effect in the place that two antiseepage cloth connect.
The anti-sewer of dam body arranged outside in the salt pan is in case the excessive dam body that exceeds of mother liquor amount overflows to the outside, salt pan in the salt pan.Antiseepage ditch width 1.0, the height 0.5m, total length is 1476m, the bottom of trench absolute altitude than the salt pan absolute altitude at the bottom of 250mm.Anti-sewer is built on the clay seam after leveling rolls, the inner shop antiseepage in ditch cloth.
Limit of rainproof film, salt pan is fixed on the dam body through wireline, and another limit is connected with haulage cable in the motor house through wireline.Wireline is through the rainproof film working direction of guide deflection sheave may command.Rainproof film is collected in the dam body and surveys under the normal circumstances, and is interim when coming in rainfall, through the motor haulage cable rainproof film covered on the whole salt pan, plays rainproof effect.
After the salt pan engineering is built and accomplished, at first in the salt pan, discharge a spot of KCl saturated solution, this solution forms the high-intensity KCl xln of one deck through the evaporation back.Xln thickness is 200mm.Xln forms preceding personnel, equipment must not get in the salt pan.Prevent beginning in the salt pan, to discharge mother liquor (NaCl saturated solution) after the KCl xln of pressure layer is stablized as the salt pan.
Claims (6)
1. prevent the salt pan for one kind novel three, this salt pan is enclosed by soil layer base plate and earth dam and constitutes, and it is characterized in that: base plate, earth dam inboard and top thereof are equipped with antiseepage cloth in the salt pan, carry out tight welding between the antiseepage cloth; The rain film of setting up defences at the top, salt pan, rainproof film adopts rope traction; On salt pan bottom antiseepage cloth, cover one deck KCl xln as the intensity layer.
2. according to claim 1 novel three anti-salt pans is characterized in that: build anti-sewer around in the salt pan.
3. according to claim 2 novel three anti-salt pans is characterized in that: antiseepage bottom of trench standard laid down by the ministries or commissions of the Central Government height is absolute altitude 150-300mm in the bottom, salt pan.
4. according to claim 1 novel three anti-salt pans, it is characterized in that: the thickness of intensity layer is more than the 200mm, and its ultimate compression strength is not less than 5MPa.
5. construction method like claim 1 or 4 described novel three anti-salt pans is characterized in that:
(1) antiseep: at first base plate original soil layer in salt pan is carried out smooth rolling, through destroying the effect that the inner capillary structure of soil layer plays antiseep; Then at salt pan bottom and earth dam inboard and top laying antiseepage cloth, and, prevent the bittern seepage to carrying out tight welding between the antiseepage cloth;
(2) rainproof: top, the salt pan rain film of setting up defences at first, rainproof film adopts rope traction, and rainproof film was received in the earth dam limit when fine day had steam output, and rainfall covers above the whole salt pan with rope traction before arriving, and prevents precipitation entering salt pan;
(3) the anti-pressure: on salt pan bottom antiseepage cloth, cover one deck KCl xln as the intensity layer.
6. the construction method in according to claim 5 novel three anti-salt pans is characterized in that: build anti-sewer around in the salt pan, antiseepage bottom of trench standard laid down by the ministries or commissions of the Central Government height is absolute altitude 150-300mm in the bottom, salt pan.
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| CN2012102525293A CN102745722A (en) | 2012-07-20 | 2012-07-20 | Novel three-proofing salt field and construction method thereof |
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| CN2012102525293A CN102745722A (en) | 2012-07-20 | 2012-07-20 | Novel three-proofing salt field and construction method thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102992356A (en) * | 2012-12-18 | 2013-03-27 | 莱州诚源盐化有限公司 | Method for rapidly building anti-seepage salt pond |
| CN103466659A (en) * | 2013-09-24 | 2013-12-25 | 山东省海洋化工科学研究院 | Manufacturing method of salt pan sand pit plate |
| CN103882871A (en) * | 2014-01-26 | 2014-06-25 | 化工部长沙设计研究院 | Rapid construction method for seepage-proof dam of salt pan |
| CN106564915A (en) * | 2016-10-26 | 2017-04-19 | 化工部长沙设计研究院 | Film laying anti-seepage salt pan and building method thereof |
| CN108569709A (en) * | 2018-07-27 | 2018-09-25 | 茫崖兴元钾肥有限责任公司 | A kind of novel isolation salt pan building method |
| CN111877262A (en) * | 2020-07-30 | 2020-11-03 | 青海盐湖工业股份有限公司 | Antiseep structure in old bittern salt pan |
| CN111945658A (en) * | 2020-07-31 | 2020-11-17 | 青海盐湖工业股份有限公司 | Salt field isolation dam and construction method thereof |
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| JPS5567523A (en) * | 1978-11-16 | 1980-05-21 | Katsuhiko Tani | Salt manufacturing apparatus |
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| JPS5567523A (en) * | 1978-11-16 | 1980-05-21 | Katsuhiko Tani | Salt manufacturing apparatus |
| CN102167361A (en) * | 2011-04-26 | 2011-08-31 | 江苏省东泰盐业有限公司 | Salt manufacturing crystallization pond |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102992356A (en) * | 2012-12-18 | 2013-03-27 | 莱州诚源盐化有限公司 | Method for rapidly building anti-seepage salt pond |
| CN102992356B (en) * | 2012-12-18 | 2015-10-14 | 莱州诚源盐化有限公司 | The method in fast construction antiseepage salt pan |
| CN103466659A (en) * | 2013-09-24 | 2013-12-25 | 山东省海洋化工科学研究院 | Manufacturing method of salt pan sand pit plate |
| CN103882871A (en) * | 2014-01-26 | 2014-06-25 | 化工部长沙设计研究院 | Rapid construction method for seepage-proof dam of salt pan |
| CN103882871B (en) * | 2014-01-26 | 2015-08-19 | 化工部长沙设计研究院 | A kind of antiseepage dam, salt pan fast construction method |
| CN106564915A (en) * | 2016-10-26 | 2017-04-19 | 化工部长沙设计研究院 | Film laying anti-seepage salt pan and building method thereof |
| CN106564915B (en) * | 2016-10-26 | 2018-02-13 | 化工部长沙设计研究院 | A kind of plastic film mulch antiseepage salt pan and its construction method |
| CN108569709A (en) * | 2018-07-27 | 2018-09-25 | 茫崖兴元钾肥有限责任公司 | A kind of novel isolation salt pan building method |
| CN111877262A (en) * | 2020-07-30 | 2020-11-03 | 青海盐湖工业股份有限公司 | Antiseep structure in old bittern salt pan |
| CN111877262B (en) * | 2020-07-30 | 2021-11-16 | 青海盐湖工业股份有限公司 | Antiseep structure in old bittern salt pan |
| CN111945658A (en) * | 2020-07-31 | 2020-11-17 | 青海盐湖工业股份有限公司 | Salt field isolation dam and construction method thereof |
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Application publication date: 20121024 |