CN102992356A - Method for rapidly building anti-seepage salt pond - Google Patents
Method for rapidly building anti-seepage salt pond Download PDFInfo
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- CN102992356A CN102992356A CN2012105527854A CN201210552785A CN102992356A CN 102992356 A CN102992356 A CN 102992356A CN 2012105527854 A CN2012105527854 A CN 2012105527854A CN 201210552785 A CN201210552785 A CN 201210552785A CN 102992356 A CN102992356 A CN 102992356A
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Abstract
The invention relates to a method for rapidly building an anti-seepage salt pond, which comprises the steps of constructing a pond dam, carrying out leveling and film laying on the bottom of the pond, injecting water and filling loess slurry, and finishing a loess slurry pool plate, and the like. In the method disclosed by the invention, the step of constructing a pond dam can be implemented by using underground loess locally produced in Laizhou Bay, but in traditional processes, clay must be used in the construction of pond dams, the application of clay has more and more obvious shortcomings, one shortcoming is shown in the aspects of trouble transportation and high cost, and another shortcoming is that the clay can be subjected to water seepage, thereby causing the waste of brine; due to the application of a polyethylene plastic film, in the process of salt manufacturing, brine is separated from the bottom of the pond through the plastic film, so that a water seepage phenomenon can be prevented; and through adopting the way, in the process of salt manufacturing, the application amount of brine is reduced by 50%. The method is simple in operation, and compared with traditional processes, the cost is reduced by 20%, and the beach building time is reduced by about 75%.
Description
Technical field
The present invention relates to a kind of method of building the salt pan.
Background technology
Coastal area of china has wide salt pan, and saltpan method is still in the present salt making technology topmost a kind of.Have in the method in old-fashioned construction salt pan, field, beach materials mainly rely on clay, with clay counter dam, clay shop fixtures.The clay of shop fixtures is drawn in the pond through after tedding, bittern with 10-12 ° of B é soaks, withdraw bittern after clod in the clay soaked, then clay is stirred up and down, clay with become sposh, be paved with uniformly at the bottom of the pond, be " ten " formula stone roller with little stone roller when by the time the weight-carrying capacity of sposh can the underwriter and press sposh, after twice " ten " formula of stone roller pressure, bittern with 13-14 ° of B é soaks, soak recession water, be " ten " formula stone roller with the medium size stone roller and press twice, the bittern with 17-18 ° of B é soaks again, soak recession water, press with large size stone roller stone roller, at this moment the bittern concentration at the bottom of the pond can reach 20-23 ° of B é, can bear the weight of 2 tons of fortune salt cars.
In the method in whole old-fashioned construction salt pan, the one, do not do antiseep and process; The 2nd, larger to the clay demand, clay must be selected and contain the high clay of ion, must contain a certain amount of grittiness again, after the amount that reaches it is optimized grade and is equipped with, and could be in the standard that reaches receipts, fishing aspect intensity and hardness, the pressure; The 3rd, personnel load and increase the weight of; The 4th, it is long to build the beach time; The 5th, bottom, the pond levels sposh soft or hard that has is inhomogeneous, daily evaporate brine or brewed brine operation in can cause pond plate well damage, cause the increase of crude salt insolubles, bottom, pond levels sposh soft or hard degree varies, equally also can accelerate pond plate seepage, the Brine resources that waste is valuable.So the old-fashioned beach explained hereafter crude salt of building looks that blackout, insolubles impurity are high, and the receipts that are not easy to mechanical work are dragged for.
The Laizhou Wan subsurface brine is abundant, concentration is high, is beneficial to build large-scale salt pan, has also found abundant underground loess resource under its field, coastal beach.Soil soaks in bittern, colloidal solid in the soil (particle size diameter is less than 0.0025mm) is saturated by the sodium ion in seawater and the bittern (Na+) institute, sodium ion can promote the high dispersing of clay and glue class in the soil, and can impel the secondary ore material to decompose, colloid, granule content have been increased, these tiny clays, micelle flow in the soil with infiltration water, have clogged gradually various holes in the soil, form closely hard thin soil layer of one deck.In addition, the bittern concentration difference is respectively distinguished in inside, salt pan, and the salt of separating out is also different, such as Fe
2O
3, CaCO
3, CaSO
42H
2O etc., they precipitate under the accumulation in loess respectively.The result of these two kinds of effects has greatly reduced the water-permeable of soil.Here it is natural clayization and natural maturing process that loess occurs under the salinification effect.The formation of this process is so that Laizhou Wan loess reaches the optimum size grating.Wherein, physical clay (less than 0.01mm) content 30-40%, physical sand (greater than 0.01mm) content 60-70%.
Summary of the invention
Technical problem solved by the invention provides a kind of method that prevents salt Tanaka bittern construction salt pan of seepage at the bottom of the pond.Present method can play the effect of antiseepage, reduces the waste of Brine resources.Simultaneously, also can shorten and build the beach time, labor savings and production cost improve salt quality.
The method in fast construction antiseep of the present invention salt pan may further comprise the steps:
(1) constructs Chi Ba
Use loess construct earth dam, compacting earth dam, earth dam spread match with the earth dam size, thickness is the sealed polyethylene plastic of 8 decimillimeters, spread on the plastics film surface again without anti-cloth, at the non-woven fabrics counter dam of laying bricks;
(2) levelling plastic film mulch at the bottom of the pond
After constructing Chi Ba, with dozer levelling at the bottom of the pond, when at the bottom of having bulk soil or pond at the bottom of the pond, feeling like jelly, it is flat at the pond base pressure to haul stone roller with dozer, compacting, and then the sealed polyethylene plastic of used thickness 5 decimillimeters spreads at the bottom of the pond, film at the bottom of the pond and the film connecting joint on the Chi Ba is overlapping, be rolled into web-like, spread film after, make the mark than high 15-25cm at the bottom of the pond;
(3) water filling pours into the loess slurry
At the bottom of having spread the pond behind the film, inject the ironed film of bittern of 9-10 ° of B é, prevent that film from scratching because of wind, with slush pump the loess slurry is injected in the pond that is added with bittern, along with dam, pond gate is opened in the injection of loess slurry, bittern in the pond is progressively removed stopped after clean and loess slurry highly reaches the height that step 3 makes marks, make loess stock tank plate;
(4) finishing of loess stock tank plate
Tractor is pressed with the stone roller stone roller, with the web-like compacting that the film connecting joint is rolled into, water and clay that the stone roller pressure zone goes out is gathered around out outside the pond, plays the effect of cleaning the pond plate.
What described loess was used is the underground loess of Shandong Province's Laizhou Wan.
The physical index of described loess slurry: grittiness content is more than 70%, the sand particle more than 0.01mm, soil nature content≤30%; Chemical index is loess slurry pH value alkalescence, and metal ion, positively charged ion, anion-content height are beneficial to the Ca that replaces in the bittern
2+Separate out, alkaline soil is beneficial to SO
4 2-Separate out.
The present invention builds in the method in antiseep salt pan, constructs the underground loess that Chi Ba can use Laizhou Wan to produce on the spot, and in old technology, constructing of Chi Ba must be used clay, and it is more and more significantly not enough that the use clay has, and the one, transportation trouble, cost height; The 2nd, clay can seep water, and causes the bittern waste; Use sealed polyethylene plastic so that in the process of salt manufacturing, bittern separates at the bottom of by plastics film and pond, can prevent seepage; By the way, so that during salt manufacturing, the usage quantity of bittern has saved 50%.And present technique is simple to operate, and cost reduces 20% than old technology, builds beach saving of time 75%.
Description of drawings
Fig. 1 is the process flow sheet of method of the present invention.
Embodiment
For further specifying the present invention, specify with the following Examples:
Embodiment:
(1) chooses underground loess slurry
To the sampling of underground loess slurry, analyze its physics and chemistry index.The physical index of loess slurry: grittiness content is more than 70%, the sand particle more than 0.01mm, soil nature content≤30%.Chemical index is loess slurry pH value alkalescence, and metal ion, positively charged ion, negatively charged ion want high, are beneficial to the Ca that replaces in the bittern
2+Separate out, alkaline soil is beneficial to SO
4 2-Separate out.
The loess slurry has again its unique features than other clay, and after bittern soaked, the process stone roller is pressed, and was more and more solid, and hardness and pressure increase, and is fit to the machinery receipts and takes off salt.And can not be subjected to Na in rainy season or winter
2SO
410H
2The impact of O and destroy the pond plate is to build the beach preferred material.Another characteristics are, in pipe conveying procedure, loess is starched not blocking pipe, and are mobile large, and it is convenient to carry, and production cost is low.
(2) rationally construct Chi Ba
After building the beach addressing, design field, beach area and production technique, at first construct Chi Ba.Advanced layout design after the salt pool area is drafted, will be constructed Chi Ba when this project is constructed the dam, pond.The constructing of Chi Ba carry out overall plastic after, selecting than old technology of starting material soil had again obvious difference.Constructing of old technology Chi Ba must be used clay, protects outside watt, the materials such as brick, slabstone again.Build the beach with soil if old technology uses, to build up the pond and add bittern after-bay dam and will collapse.It is more and more significantly not enough to use clay to have, and the one, transportation bothers, operation is difficult, cost is high; The 2nd, clay can seep water, and causes the bittern waste.On the other hand, buy come clay, add water and rare after could use, will certainly slow down the time of building the beach.
And adopt overall plastic after, the Chi Ba that constructs can use soil on the spot.Carry out first earth dam, then cover is real, spreads the plastics film that combines with dam, pond size, put on the plastics film surface again without anti-cloth, plastics film used thickness on the Chi Ba is the film of 8 decimillimeters, can greatly reduce the time of building a dam like this, can play good anti-seepage effect again.
(3) levelling plastic film mulch at the bottom of the pond
The research and development of the method, the mechanized degree is improved, and only has mechanization degree to make good use of, and just can play the purpose on fast run-up beach.After Chi Ba builds, just can with the levelling at the bottom of the pond of mechanized tool dozer, unnecessary soil is put together, for future use.After the dozer levelling, if feel like jelly at the bottom of having bulk soil or pond at the bottom of the pond, the stone roller with 1 ton of dozer tow heavy is flat at the pond base pressure again, compacting.Then use that 5 decimillimeters are thick, 8 meters wide polyethylene films carry out shop fixtures.During plastic film mulch, the film of 5 decimillimeters and the film of 8 decimillimeters be connected, take water-tight as purpose.After having spread film, to advancing the water level gauge mark at the bottom of the pond, make a mark, prepare to fill with halogen and break the loess slurry, the mark of making exceeds ground end 20cm, and Here it is, and we beat the optimum thickness of loess slurry.
(4) water filling pours into the loess slurry
At the bottom of having spread the pond, behind the film, inject the ironed film of bittern of 9-10 ° of Be ', prevent that film from scratching because of wind, then rush previous ready loess with hydraulic giant.Must prepare first what a Chi Keng, under the washing away of hydraulic giant, the loess pulping flows out.Then be drawn in the pond of injected water with shifting to an earlier date ready slush pump.When injecting the loess slurry, two to three people hold rake outflow along with the loess slurry in the pond and drag the loess slurry, and the loess slurry is got to always and before preset the terrestrial reference height, when injecting the loess slurry, unplugs the flashboard in pond.Along with the injection pond bittern of loess slurry is progressively removed only.The staff drags the loess slurry, and the foundry loam in the loess slurry will be taken out of with water.By the time the loess slurry that injects is all got to terrestrial reference, and just finish in this pond.This technological operation is simple, brisk, work load is low, and take out the pump of loess slurry can many operations.Build the beach mode with old technology and compare, greatly shortened and built the beach time, and cost is low, add the electricity charge, labour cost, about 1 yuan of every cubic metre loess slurry cost has greatly reduced enterprise's production cost and has built the beach expense.
(5) finishing of loess stock tank plate
After the loess slurry has been beaten, at first need 7-8 people to hold rake and drag rake on loess slurry surface.Because the loess slurry is comprised of water and loess, after having beaten, hold rake by 2 people and drag, moisture content and clay in the loess slurry are taken out of.Its major ingredient loess is more and more solid, and this is to be determined by the characteristics that principle of dynamics and loess are starched, and more ponds of the pass plate that drags is more solid.Drag in the process the workman, if the loess under sole slurry is more and more harder, bear vehicle after, carry out the vehicle stone roller and press, vehicle preferably uses 25 tractors.Need first stone roller to press one time, then gather around the circle machine with 25 tractors with salt pan equipment, gather around out outside the pond depressing water and the clay taken out of by workman and 25 tractor stone rollers, play the effect of cleaning the pond plate.Then, carry out stone roller with 25 tractors with stone roller circle stone roller again and press, adopt " ten " word formula and " O " formula stone roller to press when stone roller is pressed, making that the molecule of loess slurry is better must be in conjunction with, compacting, and pond plate hardness can improve again simultaneously.At this moment stone roller is pressed can take clay slurry out of again, again with 25 tractors with gathering around the circle machine, clay slurry is gathered around out outside the pond.Again anhydrous and clean pond plate is gone up bittern.Bittern is more shallow better, and weather is optimum under calm condition, utilizes water to look for the planeness of pond plate, and the place that height is protruding is local flat to Chi Banwa's.In the pond, inject again a small amount of bittern, cover pond plate 1-2cm and be advisable, then gather around circle by 25 tractors with gathering around the circle machine.Through after such operation, the pond plate is not only smooth but also withstand voltage, and spreading again can antiseepage after moulding, and reaches our technical requirements.
After method employing of the present invention is overall plastic, when doing dam, pond soil, can gathers materials on the spot, build a dam on the spot.And in old building in the technique of beach, built the dam after, outer dam needs a large amount of clays, counter dam again also outside the Chi Ba that builds, clay needs remote the purchase, the transportation trouble, and after shipping, also need soak with rare and become thick shape to use, reach 2-3 working life after clay will come off.Clay can not play antiseepage, leakproof effect, and is serious to the Brine resources waste, and cost is higher.
Of the present invention fast, antiseepage builds the salt pan new technology and solved the problem that the whole Salt Industry of this restriction is built the beach fully.Adopt overall plastic technology, built dam, compacting after, just can spread to mould and add without preventing that cloth protects brick, both antiseepage leakproofs economize on resources again, and construction speed is fast.
The wherein application of loess stock tank plate has a lot of benefits:
(1) the loess slurry of the method employing is to gather materials on the spot, and has reduced to become to produce cost;
(2) loess slurry injects Chi Zhonghou, and whole ring manipulation is than with old laborsaving when building the beach technology;
(3) loess stock tank plate compressive strength rate clay pond plate wants high;
(4) loess stock tank plate need not be considered summer rainwater to the impact of pond plate, has also avoided separate out Na in the bittern during cold current winter
2SO
410H
2O destroys the danger of pond plate, is very favourable to production.
Above-described embodiment is described preferred implementation of the present invention; be not that scope of the present invention is limited; design under the prerequisite of spirit not breaking away from the present invention; various distortion and improvement that the common engineering technical personnel in this area make technical scheme of the present invention all should fall in the definite protection domain of claims of the present invention.
Claims (3)
1. the method in a fast construction antiseepage salt pan is characterized in that: may further comprise the steps:
(1) constructs Chi Ba
Use loess construct earth dam, compacting earth dam, earth dam spread match with the earth dam size, thickness is the sealed polyethylene plastic of 8 decimillimeters, spread on the plastics film surface again without anti-cloth, at the non-woven fabrics counter dam of laying bricks;
(2) levelling plastic film mulch at the bottom of the pond
After constructing Chi Ba, with dozer levelling at the bottom of the pond, when at the bottom of having bulk soil or pond at the bottom of the pond, feeling like jelly, it is flat at the pond base pressure to haul stone roller with dozer, compacting, and then the sealed polyethylene plastic of used thickness 5 decimillimeters spreads at the bottom of the pond, film at the bottom of the pond and the film connecting joint on the Chi Ba is overlapping, be rolled into web-like, spread film after, make the mark than high 15-25cm at the bottom of the pond;
(3) water filling pours into the loess slurry
At the bottom of having spread the pond behind the film, inject the ironed film of bittern of 9-10 ° of B é, prevent that film from scratching because of wind, with slush pump the loess slurry is injected in the pond that is added with bittern, along with dam, pond gate is opened in the injection of loess slurry, bittern in the pond is progressively removed stopped after clean and loess slurry highly reaches the height that step 3 makes marks, make loess stock tank plate;
(4) finishing of loess stock tank plate
Tractor is pressed with the stone roller stone roller, with the web-like compacting that the film connecting joint is rolled into, water and clay that the stone roller pressure zone goes out is gathered around out outside the pond, plays the effect of cleaning the pond plate.
2. method according to claim 1, it is characterized in that: what described loess was used is the underground loess of Shandong Province's Laizhou Wan.
3. method according to claim 1 is characterized in that: the physical index of described loess slurry: grittiness content is more than 70%, the sand particle more than 0.01mm, soil nature content≤30%; Chemical index is loess slurry pH value alkalescence, and metal ion, positively charged ion, anion-content height are beneficial to the Ca that replaces in the bittern
2+Separate out, alkaline soil is beneficial to SO
4 2-Separate out.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN104711966A (en) * | 2015-01-29 | 2015-06-17 | 青海盐湖工业股份有限公司 | Brine conveying facility, construction technology thereof and brine conveying 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 |
| 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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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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| 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 |
| 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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| CN102992356B (en) | 2015-10-14 |
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