CN1062123A

CN1062123A - System halogen high yield technique is shone on the seawater beach

Info

Publication number: CN1062123A
Application number: CN 92107252
Authority: CN
Inventors: 张子明
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-12-27
Filing date: 1991-12-27
Publication date: 1992-06-24

Abstract

System halogen high yield technique is shone on a kind of seawater beach, is entirely to spread plastics or composite material film on the bottom surface of original evaporating pool and pond low bank between fields, the pool wall or on the end of defeated halogen, the pool of depositing halogen, ditch, wall, low bank between fields, preferably black.And fix film with nail, to stop the film displacement.The soil that finally utilizes technology of the present invention to reach the pond that avoids evaporating contacts with bittern or rainwater, and the chance that fresh water and bittern may be contacted is completely cut off, and can recover to make halogen production when the sun shines again after the rain to reach.Adopt technology of the present invention, can make per hectare evaporation tank volume increase crude salt more than 75 tons.

Description

System halogen high yield technique is shone on the seawater beach

The present invention relates to the technology of a kind of seawater and subsurface brine solar saltworks.

Existing bittern solar saltworks technology all is to utilize sun power beach solarization seawater or subsurface brine to become dense bittern, entering crystallizing pond then and separate out brilliant salt.Use black plastic cloth pad in crystallizing pond according to what propose in " Soviet Union's salt science and technology " little big " to imagination of salt pan antiseepage " of writing of the industry second phase in 1989 27 pages of Ni, earlier the soil at the bottom of the pond is cut out 30 centimeters, levelling, ditch again during the shop to dig 0.3 meter every three meters, ditch has certain gradient, fill up stone and small porcelain tube in the ditch, repave plastic cloth, 30 centimeters soil is restored, levelling, compacting makes at the bottom of the pond not softly like this, is beneficial to and takes off salt.But the evaporation tank to the concentrated usefulness of original seawater or subsurface brine can not be suitable for, and this is too complicated because of construction, and production cost is too high.Can propose to avoid evaporating preferably the interior too high way of moisture of pond soil yet also have no talent so far.So shine the improvement of the evaporation tank of halogen is a big key of salt making technology.Salt flat mainly is the soil that utilizes coastal beach, and composting becomes the evaporation tank of the dense halogen of system, analyses the crystallizing pond of salt.This soil of building the pond all has certain space, so be full of moisture content, this moisture content changes with the change in concentration of pond face bittern, also with rainfall amount what and diluted.Over the years, after heavy rain, be converted into bittern for making the water in the soil, often will wait for for a long time, this just is that the harm that rainfall once more caused has increased opportunity.This also is the major cause of the sea salt underproduction.How the salt industry scientific and technical personnel prevent to have done a large amount of work on the seepage of salt pond for many years for this reason, but its effect is always not good enough.

Task of the present invention is will be to solve the too high a series of problems of evaporation tank soil moisture content.

Task of the present invention is finished like this: utilize energy variegated plastics film of aging-resistant or laminated film, be preferably black.Its thickness 〉=0.08MM, width be generally more than 1.2 meters, and should keep smooth, eliminates the crape folding.Then with this film at the bottom of the pond of evaporation tank low bank between fields pool wall, the pond with the pool low bank between fields of the Tu Tang of defeated row's bittern, Tang Bi, the pool at the bottom of etc. the position that need contact with bittern all spread the available bonding or hot weld method processing in the splicing-in place of film meticulously; The plastics nail of film available dedicated or fix with the nail of reprocessed plastic(s) bamboo and wood, metal processing is generally with every nail of one meter nail, to prevent the film displacement or steam bubble to occur.The shape of nail is similar to iron nail commonly used, only is that ailhead is big, the nail height some.

Adopt above-mentioned film cover salt pond, shop and the halogen pool, halogen ditch that following characteristics can be arranged:

(1) according to known to the experience, the degree of depth of the average leakage of bittern of general evaporation tank is 0.5MM/ day, and the leakage of evaporation tank is 0.7MM/ day, calculated with 1 year 300 days, year loss halogen is 210MM deeply, is converted to the leakage of saturated bittern, is about the per hectare evaporation tank and produces 19.5 tons in crude salt less.

(2), the contained water of evaporation tank soil has confidential relation with the concentration of the bittern that produces, especially the thickness at evaporation tank soil is 20 centimeters, salinity in this layer soil and the salinity in the bittern exchange the fastest.Contain the water ratio of 5-25Be ' concentration bittern often more than 20% in the soil in the general sophisticated evaporation tank; Less than 5Be ' time, the water ratio of soil is about about 30%.So general salt worker often adopts the bittern that adds lower concentration in the evaporation of high concentrated liquor pond to shorten the technical measures of the spissated evaporation of bittern phase, promptly is to be commonly referred to as the system halogen method of scratching the salty end, utilizes this principle exactly.So how to dwindle the water content in the soil of salt pond, be relevant technologies personnel problems very deeply concerned.

(3) the light loss of row that brings to evaporation tank of rainfall.Is example according to the data introduction with saltern, the Huaibei, average of the whole year rainfall number of times is 93.3 times, reach above the having 5.9 times of 10MM, so after entering evaporation tank bittern is had diluting effect, can make water content increase in the evaporation tank soil equally simultaneously, through estimating that only rainfall just loses crude salt and reach 16 tons of per hectare evaporation tanks, this loss is to get rid of fresh water by evaporation tank after the rainfall to cause.

(4) planeness of evaporation tank internal surface is relevant with the soil attached water, roughness that it is generally acknowledged the pond face with adhere to the bittern amount and be directly proportional.So " with the beach levelling " technology in salt worker's operative technique is exactly in order to improve the planeness in salt pond.Through actual measurement, revolution moves bittern one time, it is dark that Chi Tuke adheres to the about 5MM of bittern, this bittern that adheres to can not be drained, can not self concentrate again, the bittern that must pass through to be shone gives balance in evaporative process, this has just increased the fresh water amount in the bittern, has also prolonged the actual time that needs evaporation of bittern relatively.This loss is equivalent to the per hectare evaporation tank and produces 47.8 tons in crude salt less.

Now adopt the method for film blanket evaporation tank of the present invention, can stop above-mentioned (1), (2), (3) described complete loss, can reduce more than 50% of the described loss of (4) bar, through rough estimation, can reduce the loss 75 tons in crude salt of per hectare evaporation tank, not that is to say with adopting technology of the present invention and compare that the per hectare evaporation tank can increase production 75 tons in crude salt.

For another example, if adopted black thin film in evaporation tank, it is about more than 10% that the receptivity of sun power is improved, thereby than the water evaporates amount of former technology further growth is arranged.

Below in conjunction with accompanying drawing the present invention is done detailed elaboration.

Accompanying drawing 1 is the synoptic diagram of evaporation tank lid shop film;

Accompanying drawing 2 is synoptic diagram of the pool, operculum colpi shop film.

Concrete technology of the present invention is such: take the energy aging-resistant, the film (1) that the dark color of thickness 〉=0.08MM or the plastics of black or matrix material process, its width is generally more than 1.2 meters, after the mull technique connection, the low bank between fields (3) of smooth shakedown evaporation tank, the halogen pool, halogen ditch (2), wall (4), the end (5) portion, the bubble that flanging place, splicing-in place and the film in the edge can glide or water vapour mobile or under film forms at film all can solve every 1 meter method that nails on a nail (6) on film.This nail is just as general iron nail, and the thickness of its ailhead (7) is not less than 3MM, diameter is not less than 30MM, and nail body (8) diameter is not less than 10MM, and its length is not less than 60MM.The work material of this nail is plastics preferably, but also can be reprocessed plastic(s), metal or bamboo and wood.

Claims

1, a kind of seawater beach solarization system halogen high yield technique, it is characterized in that (5) at the bottom of the pond low bank between fields (3), pool wall (4), pond of the evaporation tank that shine on the beach, with low bank between fields, wall, the surface at the end of the defeated halogen pool, ditch, all spread the variegated film of aging-resistant (1), and fixing in the position that film may move with nail (6).

2, shine system halogen high yield technique according to the seawater beach of claim 1, it is characterized in that employed film is plastics or matrix material processing, its color is black preferably.

3, shine system halogen high yield technique according to the seawater beach of claim 1, it is characterized in that nail (6) that fixed film uses best be continuously connected fastener, also can be reprocessed plastic(s) nail or peg, the bamboo wooden peg.