CN108217694A - A kind of the evaporate brine automatically ecological circulation of device and salt-soda soil desalinization of soil by flooding or leaching waste water of solar energy conveyer belt type utilizes method - Google Patents
A kind of the evaporate brine automatically ecological circulation of device and salt-soda soil desalinization of soil by flooding or leaching waste water of solar energy conveyer belt type utilizes method Download PDFInfo
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- CN108217694A CN108217694A CN201810010005.0A CN201810010005A CN108217694A CN 108217694 A CN108217694 A CN 108217694A CN 201810010005 A CN201810010005 A CN 201810010005A CN 108217694 A CN108217694 A CN 108217694A
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Abstract
The invention discloses a kind of the evaporate brine automatically ecological circulations of device and salt-soda soil desalinization of soil by flooding or leaching waste water of solar energy conveyer belt type to utilize method.Present system mainly includes water storage box, exhaust ventilation system, shines salt pond sum aggregate salt box.The method of the present invention step is as follows：It determines the position of ecological engineering system, and drainage ditch is built in semiarid zone salt-soda soil；Ecological engineering system includes buffering water storage box, ecological fish pond and solar energy conveyer belt type and shines salt system automatically；It collects desalinization of soil by flooding or leaching waste water and is discharged into buffering water storage box；Inject ecological fish pond aquatic after desalinization of soil by flooding or leaching waste water regulating mineralization degree of injected oil, the desalinization of soil by flooding or leaching waste water evaporation and concentration after harvest is pumped into solar energy conveyer belt type shines salt system and evaporate brine automatically, the crude salt collected.The present invention improves efficiency of evaporating brine, and then reduces cellar area of evaporating brine, and improves land utilization ratio；The Collection utilization for irrigating salt ion in desalinization of soil by flooding or leaching waste water is realized at lower cost, is solved the problems, such as in Saline-alkali Field Control that salinity is returned and is become.
Description
Technical field
The invention belongs to Solar use and agricultural irrigation and agricultural wastewater application technology as the second resource fields, are related to one kind too
It is positive can the evaporate brine automatically ecological circulation of device and salt-soda soil desalinization of soil by flooding or leaching waste water of conveyer belt type utilize method.
Background technology
It irrigates because the factors such as salt ionic concentration is big, the high, pH high of hardness are difficult to recycle in desalinization of soil by flooding or leaching draining, disorderly row leaves about easily
Cause secondary pollution.Less, Physical Primary Reference sea water desalination is studied in terms of the brine waste desalting processing of current farmland
The relevant technologies, mainly including the way of distillation, freezing, embrane method, crystallisation, ion-exchange etc..Above-mentioned technological means shortcoming is place
It is higher to manage cost, in agriculture field narrow scope of application.Sichuan Teachers University Zhao bodyguard woods subject with clay mineral prepare negative and positive from
Subtype sorbing material inhibits moisture-salt transport by the selective absorption to salt ion, reduces anti-salt speed.Ecological engineering method
Mainly there is fish pond-raised fields ecological engineering, apply to Huang-Huai-Hai plain low-lying land and administer and develop, first dig fish pond, erected with pool field
Raised fields, fish pond are breeded fish, duck, aquatic industrial crops, raised fields seed pod, grain, cotton and feed, form " fish under upper grain ", " land and water is compound "
The ecosystem.Last century the eighties form the water body composite mode of rice-reed-fish in the Three River Plain, also obtain certain answer
With popularization.Changchun Institute of Geography Chinese Science Academy Sun Guang friend etc. applies for Chinese invention patent (CN97115793.6), discloses
A kind of saline-alkali wetland floods and droughts composite plant technology, water position status divides paddy field and dry land under base area, carries out multi-layer stereo plantation
To solve saline and alkaline drainage problem.
In current modification method, irrigate desalinization of soil by flooding or leaching waste water and finally introduce local water conservancy system with drainage ditch mostly, it is final to import
Neighbouring trunk river.Large-scale Saline-alkali Field Control can generate a large amount of irrigation desalinization of soil by flooding or leaching waste water, and being all discharged into river may be to river
Stream ecological environment and downstream basin soil bring harm.For fish pond-raised fields pattern based on aquaculture, integrated engineering amount is big, into
This height, it is difficult to large-scale promotion.Salt field is directly built there are brine salt concentration is inadequate, time-consuming, floor space is too big.
Fishpond cultivation water is evaporated brine the problems such as there are high organic contents, and salt content is low, and efficiency of evaporating brine is low, and the time of evaporating brine is long.
Invention content
It evaporates brine automatically the object of the present invention is to provide a kind of solar energy conveyer belt type the life of device and salt-soda soil desalinization of soil by flooding or leaching waste water
State circulation utilization method, the present invention improves efficiency of evaporating brine, and then reduces cellar area of evaporating brine, and improves land utilization ratio；With relatively low
Cost realizes the Collection utilization for irrigating salt ion in desalinization of soil by flooding or leaching waste water, solves the problems, such as in Saline-alkali Field Control that salinity is returned and becomes.
The present invention provides a kind of solar energy conveyer belt types to shine salt system automatically, it include water storage box, exhaust ventilation system,
Shine salt pond sum aggregate salt box；
The water storage upper box part is equipped with inlet and outlet, and liquid-level switch is set on the water storage box；
The exhaust ventilation system includes heat collector air inlet, negative-pressure air fan and heat exchange condenser pipe；
The solarization salt pond includes four sides wall, glass cover-plate, thin layer water holding are evaporated brine conveyer belt, toothed belt, heat collector into
Gas port, negative-pressure air fan and heat exchange condenser pipe；The wherein opposite wall in two sides is not contour, and in described in relatively high one side
The bottom setting water inlet of wall；The glass cover-plate is sealed in the top of the wall；The heat collector air inlet and described
Negative-pressure air fan is respectively placed in the glass cover-plate both ends, and in the short one side and height of the opposite not contour wall in two sides
One side on；It is transmitted horizontal by the thin layer water holding conveyer belt of evaporating brine of an angle by the toothed belt, and by waterproof
Variable speed electric motors, particularly drives；The negative-pressure air fan is connected with the heat exchange condenser pipe；
The water inlet for shining salt pond is connected with the water outlet of the water storage box；
The collection salt box is set to the underface that the thin layer water holding is evaporated brine at the top of conveyer belt, and the thin layer water holding is evaporated brine defeated
It send to take and a banister brush is set above the collection salt box.
In above-mentioned system, the thin layer water holding evaporate brine conveyer belt using highly-conductive hot carbon fiber cloth as base, surface is adopted
With coating modified；
The component that the solution of the coating includes following mass percentage is made：2~20% dopamines, 5~10% water
Property polyurethane coating, 10~20% water polyacrylic acid coating, 1~5% nano-graphene, 1~5% nano-titanium dioxide, 5
~10% chrome black, 1~10% Surfactant OP -10, surplus are water.
In the present invention, the component that the solution of the coating specifically includes following mass parts is made：8 parts of dopamines, 8 parts aqueous
Polyurethane coating, 15 parts of water polyacrylic acid coating, 1 part of nano-graphene, 1 part of nano-titanium dioxide, 5 parts of chrome black, 5 parts of tables
Face activating agent OP-10,57 parts of water.
In above-mentioned system, a diameter of thin layer water holding of the toothed belt evaporates brine the 1% of conveyer belt perimeter length
~3%, concretely 2%；
The material of the glass cover-plate is toughened vacuum glass, is in 5~45 °, concretely 20 ° with ground.
The application method that solar energy conveyer belt type of the present invention shines salt system automatically is as follows：
Ecological fishpond is connected by the water storage box, spilling water valve is controlled by the liquid-level switch to control the water storage box
Water level, the thin layer water holding evaporate brine conveyer belt with ground holding proper angle, and lower end is immersed under brine liquid level, the thin layer water holding
Slow movement is moved by the waterproof variable speed electric motors, particularly after conveyer belt of evaporating brine water suction water holding, the thin layer water layer of sticking is with the thin layer water holding
It evaporates brine and evaporates rapidly under the air mobilization generated in illumination and the negative-pressure air fan in conveyer belt motion process, remaining crude salt
The collection salt box is fallen into after being cleaned with solid contaminant by the banister brush and unifies collection processing, the steam of evaporation is by described negative
Pressure fan is condensed into water purification after heat exchange is carried out at the heat exchange condenser pipe after collecting, and collects reuse.
Solar energy conveyer belt type of the present invention shines salt system automatically in use, the waterproof variable speed electric motors, particularly drives the tooth
Shape belt wheel is run with 1~30rpm speed.
The present invention also provides a kind of ecological circulation of salt-soda soil desalinization of soil by flooding or leaching waste water using method, include the following steps：
1) position of ecological engineering system is determined according to the terrain in semiarid zone salt-soda soil, and in semiarid zone
Drainage ditch is built in salt-soda soil；
The ecological engineering system includes buffering water storage box, ecological fish pond and the solar energy conveyer belt type and evaporates brine automatically and be
System；
2) the irrigation desalinization of soil by flooding or leaching is carried out to the semiarid zone salt-soda soil and obtains desalinization of soil by flooding or leaching waste water；It is collected by the drainage ditch
The desalinization of soil by flooding or leaching waste water is discharged into the buffering water storage box with underground water and/or neighbouring rainwash；The desalinization of soil by flooding or leaching waste water and underground water
And/or nearby rainwash injects the ecological fish pond in the buffering water storage box after regulating mineralization degree of injected oil；In the ecological fish
In the pool, using the desalinization of soil by flooding or leaching waste water aquatic after regulating mineralization degree of injected oil；Then the desalinization of soil by flooding or leaching waste water after aquatic is harvested in institute
It states to be concentrated by evaporation to be pumped into the solar energy conveyer belt type and shine salt system automatically in ecological fish pond and evaporate brine, that collects is thick
Salt.
In the present invention, the method for irrigate the desalinization of soil by flooding or leaching to the semiarid zone salt-soda soil uses side as known in the art
Method carries out.
In the present invention, the semiarid zone salt-soda soil be annual mean ground temperature >=1000mm, precipitation≤500mm, and
There is sufficient irrigation fresh water area.
The semiarid zone salt-soda soil in China refers to the semiarid zone of North China in China, northeast and northwest.
In above-mentioned method, the topography that the ecological engineering system is built in the semiarid zone salt-soda soil is most low-lying
Place.
In above-mentioned method, the drainage ditch is located in the both sides in the semiarid zone salt-soda soil；
Work as HkDuring≤1.5m, H=Hk+ 0.2~Hk+0.5m；
HkDuring ＞ 1.5m, H=0.4~0.7m；
In above formula, HkRepresent the underground water critical groundwater table in the semiarid zone salt-soda soil, H is the depth of the drainage ditch
Degree；
The spacing of the drainage ditch is 100~500m；
The drain discharge of the drainage ditch is 1~20L/s, concretely 8L/s；
The drainage modulus of the drainage ditch is 0.02~0.20m3/s/km2。
In the present invention, the depth of the drainage ditch is concretely：Work as HkDuring≤1.5m, H=Hk+0.3m；Hk＞ 1.5m
When, H=0.5m；
The construction parameter reference of the drainage ditch《Land exploitation-renovation planning design of item specification》TD-T1012-2000
And it is determined with reference to field practical experience by scientific algorithm.
In above-mentioned method, the depth in the ecology fish pond is 2m~3m, concretely 2m；
The area in the ecology fish pond is plants the 5%~15% of field area in the semiarid zone salt-soda soil, tool
Body can be 6.67%；
The bottom of pond in the ecology fish pond and pool wall hardening, hypsography low-lying end are equipped with gap and install gate, and described excessive
The mouth of a river is connected with the water inlet that the solar energy conveyer belt type shines water storage box described in salt system automatically.
In the present invention, the main body concretely cuboid-type in the ecology fish pond, every 1~3 mu of model in the ecology fish pond
Interior installation 30kw paddle aerators one are enclosed, when ecological fish pond area≤1 mu, small-power aerator are installed and/or can
Oxygen increasing pump is installed.
In above-mentioned method, the buffering water storage box depth can be 0.1~0.6m, and concretely 0.3m, area are described
0.3~0.6 times of ecological fish pond；
The solar energy conveyer belt type is evaporated brine 0.2~0.5 times for the ecological fish pond area of system area automatically, described
Thin layer water holding is evaporated brine 0.1~0.3 times for the ecological fish pond area of the effective solar energy irradiated area of conveyer belt.
In the present invention, the buffering water storage box depth is consistent with the ecological fish pond.
In above-mentioned method, the salinity of the desalinization of soil by flooding or leaching waste water after regulating mineralization degree of injected oil is 0.1~20.0g/L, and pH value is
7.5~9.5
The salinity of the underground water is 0.1~3.0g/L, and pH value is 7.5~9.5；
The salinity of the rainwash is 0.1~3.0g/L, and pH value is 7.5~9.5.
In above-mentioned method, the aquatic includes carp, crucian, grass carp, silver carp, bighead, Penaeus Vannmei, spot section
Prawn, Tilapia mossambica, mullet, perch, Scioenops ocellatus, Chalcalbumus chalcoides aralensis, siberia platform, hybrid sturgeon, mud crab, swimming crab and blueness
At least one of clam；
The breeding density of the aquatic can be 500~2000 tails/mu, concretely 600~1000 tails/mu；
Water plant is also launched in the ecology fish pond；The water plant for reed, cattail, cyperus iria L. rhizoma scirpi, hay grass, lotus and
At least one of Scirpus tabernaemontani.
The present invention has the following advantages：
1) solar energy conveyer belt type is evaporated brine the efficient saving of labor of device automatically, and capacity usage ratio is high.
2) agricultural wastewater ecological use pattern belongs to circular agriculture design, economizes on resources, environmental-friendly.
3) according to construction local environmental conditions adaptation to local conditions, according to live topography, the conditional decisions such as underground water critical groundwater table
Execution conditions effectively reduce engineering cost.
4) longtime running can effectively reduce improvement ground groundwater level, reduce salinity in anthropogenic soil, continuously decrease locality
Soil alkaline degree realizes that the multiple resourcesization of saline-alkali wasteland utilize.
5) solar energy conveyer belt type shines salt system coating new coating automatically, and solar energy utilization ratio is high, and can effectively solve
The influence of fishpond organic pollutants improves efficiency of evaporating brine.
Description of the drawings
Fig. 1 evaporates brine system schematic automatically for solar energy conveyer belt type of the present invention.
Each label is as follows in Fig. 1：
1 thin layer water holding is evaporated brine conveyer belt；2 glass cover-plates；3 banister brush；4 toothed belts；5 negative-pressure air fans；6 heat collector air inlets
Mouthful；7 heat exchange condenser pipes；8 water storage boxes；9 liquid-level switches；10 heat-preserving walls；11 collection salt box；12 waterproof variable speed electric motors, particularlies.
Fig. 2 is desalinization of soil by flooding or leaching wastewater treatment ecological engineering system flow chart of the present invention.
Fig. 3 is water salt balance model schematic, R-precipitation salt content in Fig. 3；I-irrigation salt content；O-top drainage
Salt content；F-fertilizer, modifying agent etc. put into salt amount；B-crop carries salt amount outside；△ Md-exported to lower floor's soil and groundwater
Salt amount；Ms-salt storage in soil..
Fig. 4 is Tongyu experimental plot soil salt content variation diagram, and wherein Fig. 4 A are control, and Fig. 4 B are Irrigation regime.
Fig. 5 is Tongyu experimental plot water salt balance variation diagram.
Specific embodiment
Experimental method used in following embodiments is conventional method unless otherwise specified.
The materials, reagents and the like used in the following examples is commercially available unless otherwise specified.
Embodiment 1, solar energy conveyer belt type shine salt system automatically
Solar energy conveyer belt type of the present invention shines salt system automatically, it include water storage box 8, exhaust ventilation system, shine salt pond and
Collect salt box 11；
The top of water storage box 8 is equipped with water inlet and lower part is equipped with water outlet, and liquid-level switch 9 is set on water storage box 8；
Exhaust ventilation system includes heat collector air inlet 6, negative-pressure air fan 5 and heat exchange condenser pipe 7；
Shine that salt pond includes four sides heat-preserving wall 10, glass cover-plate 2, thin layer water holding are evaporated brine conveyer belt 1, toothed belt 4；Wherein
The opposite wall 10 in two sides is not contour, and sets water inlet in the bottom of relatively high face wall 10；Glass cover-plate 2 is sealed in
The top of wall；Heat collector air inlet 6 and negative-pressure air fan 5 are respectively placed in 2 both ends of glass cover-plate, and in opposite not contour in two sides
Wall 10 it is short and it is high while on；Conveyer belt 1 is evaporated brine by toothed belt horizontal by the thin layer water holding of an angle
4 transmission of wheel, and driven by waterproof variable speed electric motors, particularly 12；Negative-pressure air fan 5 is connected with heat exchange condenser pipe 7；
The water inlet for shining salt pond is connected with the water outlet of water storage box 8；
Collection salt box 11 is set to thin layer water holding and evaporates brine the underface at the top of conveyer belt 1, thin layer water holding evaporate brine on conveyer belt 1 in
Collect 11 one banister brush 3 of top setting of salt box.
Further, thin layer water holding evaporates brine the use highly-conductive hot carbon fiber cloth of conveyer belt 1 as base, and surface is changed using coating
Property；
The component that the solution of coating includes following mass percentage is made：2~20% dopamines, 5~10% is aqueous poly-
Urethane coating, 10~20% water polyacrylic acid coating, 1~5% nano-graphene, 1~5% nano-titanium dioxide, 5~
10% chrome black, 1~10% Surfactant OP -10, surplus are water.
Further, a diameter of thin layer water holding of toothed belt 4 evaporates brine the 1%~3% of 1 perimeter length of conveyer belt；
The material of glass cover-plate 2 is toughened vacuum glass, is in 5~45 ° with ground.
Embodiment 2, the rice terrace draining of one mu of Baicheng City in Jilin Province Tongyu County breed fish-experiment of salt discharge ecological engineering
Tongyu County is located at West in Jilin Province, west neighbour's Horqin Caoyuan, and the north borders on Heilongjiang Province, and salt affected soil type is
Typical severe sodic soils, average annual precipitation are 400~500mm, concentrate on summer, year evaporation capacity be 1100~1300mm.
The ground river water salinity is generally in 0.15~0.25g/L, and salinity composition is with HCO3—Na+Based on type；Lake bubble marsh due to steaming strongly
Hair concentration, salinity is generally in more than 1.0g/L；Groundwater level depth is about 1~3m, belongs to weak mineralization types, salinity mostly
Within 0.5~3.0g/L.
Plot surrounding east, west, south, height are tested, northern low, surface soil (0~20cm) pH=10.03, salt content reaches
0.71%, for basicity up to 42.57%, leading ion content is as shown in table 1；Critical depth of groundwater>2.0m, irrigation water are ground
Lower water (well depth 120m), water quality pH=8.2~8.4, salinity are 0.8~1.0g/L.Experimental field salt rejection rate is irrigated within 1 year to use
Water salt balance model (as shown in Figure 3) is calculated, specific soil salt balance as shown in figure 4, water salt balance situation of change such as
Shown in Fig. 5.
According to desalinization of soil by flooding or leaching wastewater treatment ecological engineering system flow chart of the present invention as shown in Figure 2, on ecological desalination engineering edge
It tests plot north to build, builds gutter, ditch depth 0.5m, design discharge 8L/s first；Desalinization of soil by flooding or leaching waste water is flowed into along topography and is arranged
Ditch, on May 5th, 2016 carry out the soaked field desalinization of soil by flooding or leaching for the first time, and desalinization of soil by flooding or leaching waste water quality pH is 7.9~8.8 in 1 year, salinity 5.2
~8.2g/L, the desalinization of soil by flooding or leaching wastewater collection are discharged into buffering water storage box, and buffering water storage box is cuboid-type, and pool area is 5 × 5m2, it is deep
It spends for 2m, plays water storage regulating water quality function, desalinization of soil by flooding or leaching waste water through mix with underground water after, adjusts 2~4g/L of salinity arrival herein
Ecological fish pond is injected afterwards, and ecological fish pond pond depth is 2m, and area is 5 × 10m2.Bottom of pond portion is laid with sandy soil, launches crucian May 10
80 tail of seedling, 20 tail of carp fry breed fish by science and manage installation 3kw paddle aerators one, oxygenation is opened when cultivating fine day, protect
It demonstrate,proves dissolved oxygen in fishpond and keeps more than 5mg/L.Pool side plants reed.
Solar energy conveyer belt type evaporates brine system footprint area as 3 × 6m automatically2.Water holding evaporates brine conveyer belt effective area as 2
×5m2, coating solution composition is 10 parts of dopamines, and 10 parts of aqueous polyurethane coatings, 10 parts of water polyacrylic acid coating, 1 part is received
Rice graphene, 1 part of nano-titanium dioxide, 5 parts of chrome black, 5 parts of Surfactant OP -10,58 part water；Water holding thickness is about 5mm；Tooth
Shape pulley diameters 10cm, rotating speed 20rpm, daily theoretical maximum processing water is 29.8t, and maximum abraum salt and solid waste collecting amount are about
60kg.During the wet season in 5~October, spillway gate is opened, discharges water and shines salt system automatically into solar energy conveyer belt type, mid-October is extremely
It waste water will be concentrated by evaporation in fishpond be gradually pumped into solar energy conveyer belt type and shines salt system automatically and evaporate brine April next year,
Fishpond was drained once in 1 year, progress subsequent processing is collected after obtaining crude salt.Annual draining 135.3m in 20163, convert into
203mm, when annual rainfall be 523mm, altogether collect crude salt 104.1kg, at the beginning of 11 months harvest commercial specification (crucian is more than or equal to
250g, carp are more than 500g) fish 21kg.
Table 1 improves ground surface soil leading ion content (cmol/kg)
Embodiment 2, the Qian Gorlos Mongol Autonomous County Rice Cropping draining of Jilin Songyuan City are breeded fish-salt discharge ecology work
Journey is tested
Jilin Songyuan City Qian Guo counties average annual precipitation be precipitation 400-500mm, year evaporation capacity be 1200mm.Main diameter
It flows for Nenjiang Nenjiang, salinity is 0.1~0.2g/L, bicarbonate radical content highest；Underground water superficial part is fresh water, average buried depth
1.6~2.2m, November are most shallow at 0.5~1 meter.
Experiment plot the north is minimum, and up to 0.82%, basicity reaches surface soil (0~20cm) pH=9.31 salt content
37.46%；Critical depth of groundwater is most shallow for 1.1m, and irrigation water is underground water and Nenjiang water Nenjiang, quality of groundwater pH=
8.4, salinity 0.5g/L.Nenjiang water pH is 8 or so, salinity 0.21g/L.
It is 2 mu to test block area, and ecological desalination engineering is built along experiment plot north, builds gutter, ditch depth first
1.5m, design discharge 8L/s；Desalinization of soil by flooding or leaching waste water along topography flow into gutter, on May 1st, 2017 carry out the soaked field desalinization of soil by flooding or leaching for the first time, one
Desalinization of soil by flooding or leaching waste water quality pH is 7.4~8.5 in year, and salinity is 5.1~9.4g/L, which is discharged into buffering water storage
Case, buffering water storage box are cuboid-type, and pool area is 5 × 10m2, depth 2m, water storage regulating water quality function, desalinization of soil by flooding or leaching waste water
Herein after being mixed with underground water, adjustment salinity, which reaches, injects ecological fish pond after 2~4g/L, and ecological fish pond pond depth is 2m, face
Product is 10 × 10m2.Bottom of pond portion is laid with sandy soil, launches 150 tail of carp fry, 20 tail of carp fry, 20 tail of silver carp, bighead 10 May 10
Tail breeds fish by science and manages installation 3kw paddle aerators one, oxygenation is opened when cultivating fine day, protects dissolved oxygen in fishpond
Hold more than 5mg/L.Pool side plants reed.Solar energy conveyer belt type evaporates brine system area as 3 × 10m automatically2, water holding evaporates brine conveying
Band effective area is 2 × 8m2, coating solution composition is 8 parts of dopamine, 8 parts of aqueous polyurethane coatings, 15 parts of water polyacrylic acids
Coating, 1 part of nano-graphene, 1 part of nano-titanium dioxide, 5 parts of chrome black, 5 parts of Surfactant OP -10,57 part water；Water holding thickness
About 7mm；Toothed belt diameter 10cm, rotating speed 25rpm, daily theoretical maximum processing water is 33.6t, maximum abraum salt and solid waste
Collecting amount about 67.2kg.During the wet season in 5~November, spillway gate is opened, discharging water to evaporate brine automatically into solar energy conveyer belt type is
System, mid-November~April next year will be concentrated by evaporation waste water in fishpond and gradually be pumped into solar energy conveyer belt type and evaporate brine automatically
System is evaporated brine, and is drained in fishpond once within 1 year, and progress subsequent processing is collected after obtaining crude salt.In May, 2017 is to August draining
143m3, 107mm is converted into, collects crude salt 32.5kg altogether.
Claims (10)
1. a kind of solar energy conveyer belt type shines salt system automatically, it is characterised in that：It includes water storage box, exhaust ventilation system, shines
Salt pond sum aggregate salt box；
The water storage upper box part is equipped with inlet and outlet, and liquid-level switch is set on the water storage box；
The exhaust ventilation system includes heat collector air inlet, negative-pressure air fan and heat exchange condenser pipe；
The solarization salt pond includes four sides wall, glass cover-plate, thin layer water holding are evaporated brine conveyer belt, toothed belt；Wherein two sides is opposite
The wall it is not contour, and in the bottom of the relatively high one side wall set water inlet；The glass cover-plate is sealed in
The top of the wall；The heat collector air inlet and the negative-pressure air fan are respectively placed in the glass cover-plate both ends, and in two
The opposite not contour wall in face it is short and it is high while on；Horizontal by the thin layer water holding of an angle
Conveyer belt of evaporating brine is transmitted by the toothed belt, and is driven by waterproof variable speed electric motors, particularly；The negative-pressure air fan and the heat exchange are cold
Solidifying pipe is connected；
The water inlet for shining salt pond is connected with the water outlet of the water storage box；
The collection salt box is set to the underface that the thin layer water holding is evaporated brine at the top of conveyer belt, and the thin layer water holding is evaporated brine conveyer belt
On in it is described collection salt box above setting one banister brush.
2. system according to claim 1, it is characterised in that：The thin layer water holding evaporates brine conveyer belt using highly-conductive hot carbon fibre
Wei Bu is as base, and surface is using coating modified；
The component that the solution of the coating includes following mass percentage is made：2~20% dopamines, 5~10% is aqueous poly-
Urethane coating, 10~20% water polyacrylic acid coating, 1~5% nano-graphene, 1~5% nano-titanium dioxide, 5~
10% chrome black, 1~10% Surfactant OP -10, surplus are water.
3. system according to claim 1 or 2, it is characterised in that：A diameter of thin layer water holding of the toothed belt
Evaporate brine the 1%~3% of conveyer belt perimeter length；
The material of the glass cover-plate is toughened vacuum glass, is in 5~45 ° with ground.
4. a kind of ecological circulation of salt-soda soil desalinization of soil by flooding or leaching waste water utilizes method, include the following steps：1) it is saline and alkaline according to semiarid zone
The terrain on ground determines the position of ecological engineering system, and builds drainage ditch in semiarid zone salt-soda soil；
It is defeated that the ecological engineering system includes buffering water storage box, ecological any one of the fish pond and claim 1-3 solar energy
Belt is sent to shine salt system automatically；
2) the irrigation desalinization of soil by flooding or leaching is carried out to the semiarid zone salt-soda soil and obtains desalinization of soil by flooding or leaching waste water；By described in drainage ditch collection
Desalinization of soil by flooding or leaching waste water is discharged into the buffering water storage box；The desalinization of soil by flooding or leaching waste water is stored with underground water and/or neighbouring rainwash in the buffering
The ecological fish pond is injected in water tank after regulating mineralization degree of injected oil；In the ecological fish pond, washed using described in after regulating mineralization degree of injected oil
Salt waste water aquatic；Then harvest the desalinization of soil by flooding or leaching waste water after aquatic be concentrated by evaporation in the ecological fish pond be pumped into it is described too
Positive energy conveyer belt type shines salt system and evaporates brine automatically, the crude salt collected.
5. according to the method described in claim 4, it is characterized in that：The ecological engineering system is built in the semiarid zone
The minimum depression of topography in salt-soda soil.
6. method according to claim 4 or 5, it is characterised in that：The drainage ditch is located in the semiarid zone
The both sides in salt-soda soil；
Work as HkDuring≤1.5m, H=Hk+ 0.2~Hk+0.5m；
HkDuring ＞ 1.5m, H=0.4~0.7m；
In above formula, HkRepresent the underground water critical groundwater table in the semiarid zone salt-soda soil, H is the depth of the drainage ditch；
The spacing of the drainage ditch is 100~500m；
The drain discharge of the drainage ditch is 1~20L/s；
The drainage modulus of the drainage ditch is 0.02~0.20m3/s/km2。
7. according to the method described in any one of claim 4-6, it is characterised in that：It is described ecology fish pond depth for 2m~
3m；
The area in the ecology fish pond is plants the 5%~15% of field area in the semiarid zone salt-soda soil；
The bottom of pond in the ecology fish pond and pool wall hardening, hypsography low-lying end are equipped with gap and install gate, and the gap
The water inlet for shining water storage box described in salt system automatically with the solar energy conveyer belt type is connected.
8. according to the method described in any one of claim 4-7, it is characterised in that：The buffering water storage box depth for 0.1~
0.6m, area are 0.3~0.6 times of the ecological fish pond；
The solar energy conveyer belt type is evaporated brine 0.2~0.5 times for the ecological fish pond area of system area automatically, the thin layer
Water holding is evaporated brine 0.1~0.3 times for the ecological fish pond area of the effective solar energy irradiated area of conveyer belt.
9. according to the method described in any one of claim 1-6, it is characterised in that：The desalinization of soil by flooding or leaching waste water after regulating mineralization degree of injected oil
Salinity for 0.1~20.0g/L, pH value is 7.5~9.5
The salinity of the underground water is 0.1~3.0g/L, and pH value is 7.5~9.5；
The salinity of the rainwash is 0.1~3.0g/L, and pH value is 7.5~9.5.
10. according to the method described in any one of claim 4-9, it is characterised in that：The aquatic includes carp, crucian carp
Fish, grass carp, silver carp, bighead, Penaeus Vannmei, Penaeus monodon, Tilapia mossambica, mullet, perch, Scioenops ocellatus, Chalcalbumus chalcoides aralensis, west primary
At least one of Leah sturgeon, hybrid sturgeon, mud crab, swimming crab and clam；
The breeding density of the aquatic is 500~2000 tails/mu；
Water plant is also launched in the ecology fish pond；The water plant is reed, cattail, cyperus iria L. rhizoma scirpi, hay grass, lotus and Scirpus tabernaemontani
At least one of.
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| CN108408713A (en) | 2018-08-17 |
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| CN108217694B (en) | 2019-08-02 |
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