CN1440929A - Spraying salt-sunning method - Google Patents
Spraying salt-sunning method Download PDFInfo
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- CN1440929A CN1440929A CN 02103947 CN02103947A CN1440929A CN 1440929 A CN1440929 A CN 1440929A CN 02103947 CN02103947 CN 02103947 CN 02103947 A CN02103947 A CN 02103947A CN 1440929 A CN1440929 A CN 1440929A
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Abstract
The spraying salt-sunning method features that under 1.5-2.5 atm, brine is conveyed via stem pipe and branch pipes and sprayed to air via the nozzles to form fogy water drops, and the said process is repeated until required concentration is reached. In the production process, two kinds of different nozzles and multilayer spraying are used, and yield as high as 5 times that of available method may be obtained.
Description
Technical field
The invention belongs to liquid evaporating technology, a kind of more precisely brine spray evaporation salt extraction process.
Background technology
As everyone knows, all adopt the evaporation of seawater method to evaporate brine, and all be that the main way that improves output only limits to the area of plane in salt pan with the plane evaporation, yet the method synergy of evaporating brine in this plane is limited by preparing salt by working up seawater.
Summary of the invention
The objective of the invention is to improve the existing technology of evaporating brine, propose a kind of spraying salt-sunning method.
Main technical schemes of the present invention and principle: under certain pressure, salt solution is ejected in the air, makes solid stream of water become fine liquid particles, form atomizing state by shower nozzle.Make these water droplets be sprayed onto ground then, because the water droplet that sprays is very little, some water droplet is not also fallen on the ground, just aloft evaporate or drift, therefore, must control certain wind-force, atomizing index and sprinkler height, to reduce drift, make the spray evaporation best results.
Spraying salt-sunning method of the present invention may further comprise the steps:
(1) depresses for the 1.5-2.5 standard atmosphere in operating pressure, salt solution is input to the main of fog system, be distributed to the shower nozzle of installing on the arm vertical direction again, by shower nozzle salt solution is sprayed in the air, fall into specified place then, described shower nozzle is selected centrifugal mini sprinkler for use, it highly is 3 meters, nozzle diameter 0.8-1.5mm, 0.5 meter, 2 meters, 3 meters that are preferably in the arm vertical direction highly are provided with 3 shower nozzles, carry out three sprayings, 3 meters height spray nozzle diameter 1.5mm wherein, 0.5 meter and 2 meters are spray nozzle diameter 0.8-1.5mm highly.Described place comprises the evaporation tank and the crystallizing pond in existing saltern.Described spray condition: wind-force is lower than 8 grades, steam output greater than 2 millimeters/day, spraying index 10000-15000.
(2) salt solution that receives in step (1) place, the spraying that circulates until reaching the desired brine concentration in saltern, obtains required product.
The described place of step (1), divide eight grades in existing saltern, the first step to the is evaporation tank for seven grades, the 8th grade is crystallizing pond, brine concentrations at different levels increase progressively step by step, the first step is directly introduced seawater, when the 7th grade of evaporation tank brine concentration reaches 20 ° (proportion 1: 24), just must transfer to the 8th grade of crystallizing pond operation; Concentration in the 8th grade of crystallizing pond reaches 28 ℃ (proportions 1.28), will emit, otherwise can influence the quality of salt.Concrete concentration operational requirement is identical with the technical requirements in existing saltern.
Fog system of the present invention is meant the person in charge, arm and shower nozzle, and comprise that pipeline is auxilliary and establish, other electromechanical equipment comprises that generator, pump etc. and management thereof are with reference to water conservancy sprinkling irrigation engineering (" the sprinkling irrigation engineering " that Zhao Jingcheng etc. compile, Chinese Water Conservancy water power press, in March, 1999 first version, P13).Because salt solution has corrodibility, electromechanical equipment and requirements for pipes are rot-resistant.
Operating pressure of the present invention is meant the pressure before the shower nozzle water inlet, described atomizing index be calculated as follows (volume such as rural water conservancy department of Ministry of Water Resources, " sprinkling irrigation engineering ", Chinese Water Conservancy electricity press, P14):
In the formula: H is an operating pressure at sprinkler, m; D is a nozzle diameter, mm.
Described steam output can also can go on foot auspicious volume by Peng Man formula Pei by the weather station of locality, the acquisition of standing, and " mensuration and the calculating of evaporating and evapotranspiring ", the Meteorology Publishing House, in May, 1989, p87) calculate:
Eo＝0.16(1+0.41v)(e
a-e
d)
In the formula: Eo is a steam output, millimeter/day; V is a wind speed, meter per second; e
aBe the saturation vapour pressure of water surface of evaporation, hundred handkerchiefs; e
dBe the air water vapour pressure, hundred handkerchiefs.
Sprinkler height of the present invention is meant the vertical range of shower nozzle to ground, high more certainly good more with sprinkler height, we have adopted with 3 meters height but consider factors such as energy consumption, cost of investment, and adopt three layers of shower nozzle atomizing, purpose is to alleviate windage, improves fogging degree.
Description of drawings
Fig. 1 is a fog system structure iron of the present invention.
By shown in Figure 1, fog system is held three groups of shower nozzle a of vertical direction installation by tiling ground main I, arm II and by the A that is in charge of II, B, C
1, a
2, a
3Constitute a wherein
1, a
2, a
3Shower nozzle is respectively 3 meters, 2 meters, 0.5 meter from the height of arm II, and shower nozzle adopts centrifugal mini sprinkler a
1, a
2, a
3, the diameter of shower nozzle is respectively 1.5mm, 1.mm, 1.0mm, and the atomizing index is respectively 10000,15000,15000.AB and BC end distance are from being 2 meters.The radical of described arm II can be arranged in parallel according to site area and (not mark among the figure) more than two, three groups of shower nozzle a of the every same installation of arm
1, a
2, a
3, the distance between arm is 2 meters, and is aging for preventing exposure when described main and arm use plastic pipe, preferably imbeds undergroundly, the degree of depth is less than 10cm.
The fog system working process: salt solution is distributed to arm II then and is sent into shower nozzle a again by A, B, C end by pump input main I
3, a
2, a
1, by shower nozzle salt solution being injected in the air, the little water droplet of atomizing is fallen the following salt field (not marking) of arm II, and the brine recirculation spraying that salt field is accepted is till the brine concentration that salt field receives reaches the saltern requirement.
Advantage of the present invention
The present invention is owing to the nozzle of selecting two kinds of different diameters for use, so the fogging degree height, and evaporation is fast, and the atomizing index is respectively 10000,15000; Owing to adopt multilayer spraying, the influence that so just can alleviate wind-force, so the present invention needs only wind-force and is lower than 8 grades, steam output and just can carries out long spraying salt-sunning above 2 millimeters/day; The present invention's spraying that salt solution repeatedly can be circulated is until reaching the concentration that the threshing ground requires.Method of the present invention and existing salt-sunning method compare, and under the equal quality condition, salt output can increase more than 5 times.
Embodiment
Further specify characteristics of the present invention below by specific embodiment.
Embodiment
It during this example the spraying salt-sunning experiment.
Experiment condition: 22 ℃ of temperature, 4 grades of relative humidity 70%, wind-force are sprayed at the leeward area without shade in limit, room and carry out.The spraying before 10 ° of salt solution proportions (1.10), 1.5 millimeters of nozzle diameters, 0.5 meter of sprinkler height, nozzle up, 2 standard atmospheric pressures of spray pressure are operated with agricultural atomizer.
Experimentation: when agricultural atomizer is sprayed onto salt solution more than 0.5 meter behind the high-altitude, forms vaporific little water droplet and fall into 5 areas in ground and be 116cm
2Plastics casing in, accept proportion and be 240 milliliters of/hour boxes of salt solution after 11 ° the spraying; Under equal conditions (homoclime, identical salt solution proportion), the existing method of evaporating brine (carry out on ground), 10 ° of salt solution of 50 milliliters of proportions are shone to make proportion be that 11 ° salt solution is 46 milliliters, in other words, per hour every box (the area 116cm of the existing method of evaporating brine
2) can only shine the salt solution 46ml (making) that makes 11 ° (proportions 1.11) by 10 ° of salt solution solarizations, and adopt per hour every box (the area 116cm of method of the present invention
2) under the homoclime condition, can obtain 11 ° salt solution 240ml (obtaining) by 10 ° of brine sprays, compare (240/46), the present invention is nearly 5 times of an existing salt-sunning method efficient.
When sprinkler height being brought up to 3 meters, method then of the present invention, the salt solution that receives after the atomizing is 200 milliliters of/hour boxes, proportion is brought up to more than 12 °, and the existing method of evaporating brine, and is 20 milliliters when 24 milliliters of 10 ° of salt solution are brought up to 12 ° of proportions, compare, 10 times synergy is arranged.
Claims (3)
1. spraying salt-sunning method is characterized in that preparation process may further comprise the steps:
(1) depresses for the 1.5-2.5 standard atmosphere in operating pressure, salt solution is input to the main of fog system, be distributed to the shower nozzle of installing on the arm vertical direction again, by shower nozzle salt solution is sprayed in the air, fall into specified place after the atomizing, described sprinkler height is apart from 3 meters on ground, nozzle diameter 0.8-1.5mm, described spray condition: wind-force is lower than 8 grades, steam output greater than 2 millimeters/day, spraying index 10000-15000, and described place comprises the evaporation tank and the crystallization ground in existing saltern;
(2) salt solution of being accepted by the described place of step (1) spraying that circulates until reaching the desired brine concentration in saltern, obtains qualified product.
2. in accordance with the method for claim 1, it is characterized in that the described shower nozzle of step (1) 0.5 meter, 2 meters, 3 meters of arm highly the place three centrifugal mini sprinklers are set, reach three layers of spraying, 0.5 meter and 2 meters height spray nozzle diameter 0.8-1mm wherein, spraying index 15000,3 meters height spray nozzle diameters are 1.5 millimeters, atomizing index 10000.
3. in accordance with the method for claim 1, it is characterized in that fog system is by main I, arm II and by A, the B of arm II, three groups of shower nozzle a that C end points vertical direction is installed
1, a
2, a
3Constitute, wherein main I, arm II tile on the ground, when selecting plastic pipe for use, pipeline are imbedded in the soil, its degree of depth is less than 10cm, the single data site area of described arm II be arranged in parallel more than 2, and on every arm three groups of shower nozzle a is installed all
1, a
2, a
3, the distance between arm II is 2 meters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB02103947XA CN1190362C (en) | 2002-02-27 | 2002-02-27 | Spraying salt-sunning method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB02103947XA CN1190362C (en) | 2002-02-27 | 2002-02-27 | Spraying salt-sunning method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1440929A true CN1440929A (en) | 2003-09-10 |
| CN1190362C CN1190362C (en) | 2005-02-23 |
Family
ID=27768377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB02103947XA Expired - Fee Related CN1190362C (en) | 2002-02-27 | 2002-02-27 | Spraying salt-sunning method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1190362C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010040300A1 (en) * | 2008-10-06 | 2010-04-15 | Lu Liyong | Brine concentration method |
| CN101804997A (en) * | 2010-03-12 | 2010-08-18 | 王琨彭 | Device for improving baysalt yield by solar energy and wind energy and application thereof |
| CN104874194A (en) * | 2014-02-27 | 2015-09-02 | 莱州诚源盐化有限公司 | Stereo small liquid drop evaporation technology for bittern condensation |
| CN109534371A (en) * | 2018-12-14 | 2019-03-29 | 青海盐湖工业股份有限公司 | A kind of method and system of salt pan evaporation sinker mother liquor |
-
2002
- 2002-02-27 CN CNB02103947XA patent/CN1190362C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010040300A1 (en) * | 2008-10-06 | 2010-04-15 | Lu Liyong | Brine concentration method |
| CN101804997A (en) * | 2010-03-12 | 2010-08-18 | 王琨彭 | Device for improving baysalt yield by solar energy and wind energy and application thereof |
| CN104874194A (en) * | 2014-02-27 | 2015-09-02 | 莱州诚源盐化有限公司 | Stereo small liquid drop evaporation technology for bittern condensation |
| CN109534371A (en) * | 2018-12-14 | 2019-03-29 | 青海盐湖工业股份有限公司 | A kind of method and system of salt pan evaporation sinker mother liquor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1190362C (en) | 2005-02-23 |
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Granted publication date: 20050223 Termination date: 20100227 |