CN115812403A - Biogas slurry green returning device and method for reducing nitrogen and phosphorus loss - Google Patents
Biogas slurry green returning device and method for reducing nitrogen and phosphorus loss Download PDFInfo
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- CN115812403A CN115812403A CN202211467884.2A CN202211467884A CN115812403A CN 115812403 A CN115812403 A CN 115812403A CN 202211467884 A CN202211467884 A CN 202211467884A CN 115812403 A CN115812403 A CN 115812403A
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- biogas slurry
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- rubber pad
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- 239000002002 slurry Substances 0.000 title claims abstract description 96
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 62
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 title claims abstract description 31
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 31
- 229910052698 phosphorus Inorganic materials 0.000 title claims abstract description 31
- 239000011574 phosphorus Substances 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000003860 storage Methods 0.000 claims abstract description 39
- 239000007788 liquid Substances 0.000 claims abstract description 19
- 238000001914 filtration Methods 0.000 claims abstract description 14
- 238000000605 extraction Methods 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 114
- 239000003337 fertilizer Substances 0.000 claims description 46
- 241000209094 Oryza Species 0.000 claims description 35
- 235000007164 Oryza sativa Nutrition 0.000 claims description 35
- 235000009566 rice Nutrition 0.000 claims description 35
- 239000007921 spray Substances 0.000 claims description 25
- 239000012535 impurity Substances 0.000 claims description 24
- 239000010865 sewage Substances 0.000 claims description 10
- 235000015097 nutrients Nutrition 0.000 claims description 9
- 238000007599 discharging Methods 0.000 claims description 7
- YUWBVKYVJWNVLE-UHFFFAOYSA-N [N].[P] Chemical compound [N].[P] YUWBVKYVJWNVLE-UHFFFAOYSA-N 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 claims 1
- 238000000926 separation method Methods 0.000 abstract description 3
- 241000883990 Flabellum Species 0.000 description 5
- 238000009395 breeding Methods 0.000 description 4
- 230000001488 breeding effect Effects 0.000 description 4
- 244000309464 bull Species 0.000 description 4
- 244000144972 livestock Species 0.000 description 4
- 244000144977 poultry Species 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 210000003608 fece Anatomy 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 201000002451 Overnutrition Diseases 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 239000003621 irrigation water Substances 0.000 description 1
- 239000010871 livestock manure Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 235000020823 overnutrition Nutrition 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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- Fertilizers (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention provides a biogas slurry green returning device and a method for reducing nitrogen and phosphorus loss. The biogas slurry green returning device for reducing nitrogen and phosphorus loss comprises a storage pool; the top end of the storage pool is provided with the cylinder body, and the cylinder body is in threaded connection with the screw plug; the filtering mechanism is characterized in that one end of the barrel is provided with the fixed block, one end of the fixed block is provided with the fixed net, and the second gauze layer is arranged in the fixed net; the fixed sleeve is connected with the feeding pipe in a sliding mode, the rubber pad and the pull rod are mounted on the side wall of the fixed sleeve respectively, the rubber pad with elasticity is connected with the second gauze layer in a sliding mode, and the pull rod is connected with the fixed block in a sliding mode; an adjustment mechanism; an anti-blocking mechanism; and an extraction mechanism. The device and the method for returning the biogas slurry to the field in green environment for reducing nitrogen and phosphorus loss have the advantages of reducing nitrogen and phosphorus runoff loss and improving the solid-liquid separation efficiency of the biogas slurry.
Description
Technical Field
The invention relates to the technical field of returning biogas slurry to fields, in particular to a biogas slurry green returning device and a method for reducing nitrogen and phosphorus loss.
Background
In recent years, with the improvement of living standard of people, livestock and poultry breeding in China is also developing at a high speed. The improvement of the intensification degree of the breeding industry brings the centralized treatment and discharge of livestock and poultry breeding wastes, the large-scale biogas engineering is an important link for the emission reduction and resource utilization of livestock and poultry breeding feces, and the biogas engineering is taken as a link of an agricultural ecological cycle mode, thereby playing a positive role in modern ecological cycle agriculture and agricultural green development. The biogas slurry is the most important utilization form, and is residual liquid of livestock and poultry manure after full anaerobic fermentation in biogas engineering. The biogas slurry has high contents of COD (chemical oxygen demand), BOD (biochemical oxygen demand), SS (suspended solids), total nitrogen, ammonia nitrogen, total phosphorus and the like, cannot reach the national standard of culture pollutant discharge, and causes pollution of different degrees to the surrounding environment by direct discharge. The paddy rice is one of the main grain crops in China, the planting area is large, the fertilizer application amount is high, and meanwhile, the fertilizer can be applied in the paddy rice planting process in the form of irrigation water, so that the paddy rice field becomes one of the main farmland types for consuming biogas slurry at present.
However, the currently adopted application mode of the rice field biogas slurry mainly adopts a small-time large-quantity application mode, the problem of short-term over-nutrition of the rice field exists, and once heavy rainfall occurs, residual nitrogen and phosphorus nutrient substances in soil flow into a water body in a surface runoff manner; before applying the biogas slurry to the inside of the rice field, the liquid and the impurities inside the biogas slurry need to be separated, but the impurities inside the biogas slurry are many and are mixed, so that a filter screen is easy to block, and the solid-liquid separation efficiency of the biogas slurry is low.
Therefore, it is necessary to provide a new device and method for returning biogas slurry to field in green to reduce nitrogen and phosphorus loss.
Disclosure of Invention
The invention aims to provide a biogas slurry green returning device and a method thereof for reducing nitrogen and phosphorus runoff loss, improving the solid-liquid separation efficiency of biogas slurry and reducing nitrogen and phosphorus loss.
In order to solve the technical problem, the biogas slurry green returning device for reducing nitrogen and phosphorus loss provided by the invention comprises: a storage tank; the impurity removing mechanism comprises a water inlet pipe, a barrel, a screw plug, a valve, a drain pipe and a drain pipe, the barrel is installed at the top end of the storage pool, the barrel is in threaded connection with the screw plug, and the drain pipe is installed inside the screw plug; the water inlet pipe and the water outlet pipe are symmetrically arranged on the side wall of the cylinder body; the filter mechanism comprises a fixing block, a limiting ring, a feeding pipe, a fixing net, a second gauze layer, a rubber pad, a fixing sleeve and a pull rod, wherein the fixing block is installed at one end of the barrel, the fixing net is installed at one end of the fixing block, and the second gauze layer is installed inside the fixing net; the side wall of the cylinder body is provided with the feeding pipe, one end of the feeding pipe is provided with the limiting ring, and the limiting ring abuts against the fixed sleeve; the fixed sleeve is connected with the feeding pipe in a sliding mode, the rubber pad and the pull rod are installed on the side wall of the fixed sleeve respectively, the rubber pad with elasticity is connected with the second gauze layer in a sliding mode, and the pull rod is connected with the fixed block in a sliding mode; the adjusting mechanism is arranged inside the storage pool; the anti-blocking mechanism is fixed inside the adjusting mechanism; and the extraction mechanism is arranged in the storage pool.
Preferably, the adjusting mechanism comprises a water pipe, rotating rods, fan blades and a spray head, the water pipe is arranged in the storage pool, and the bottom end of the water pipe is rotatably connected with the plurality of rotating rods; the fan blades are symmetrically arranged on the side wall of the rotating rod, and the nozzles are symmetrically and vertically arranged on the edges of the side wall of the fan blades.
Preferably, the anti-blocking mechanism comprises a fixing frame, a sliding rod, a convex block and a spring, the fixing frame is installed inside the fan blade, the side wall of the fixing frame is connected with the sliding rod in a sliding mode, one end of the sliding rod is fixedly connected with the convex block, the convex block is clamped with the spray head, and two ends of the spring are fixedly connected with the sliding rod and the fan blade respectively.
Preferably, the magnetic projection adsorbs the nozzle, and the magnetic slide bar adsorbs the side wall of the fixing frame at one end.
Preferably, the lifting mechanism comprises a base, a support rod, a connecting pipe, a fixing cover, a first gauze layer and a water pump, the base is arranged in the storage pool, two ends of the support rod are respectively and fixedly connected with the base and the fixing cover, and the side walls of the support rods are sleeved on the first gauze layer; the surface mounting of base the water pump, the lateral wall installation of water pump the connecting pipe.
Preferably, the side walls of the connecting pipe, the water pipe and the water discharging pipe are respectively provided with a metering valve, and the side walls of the feeding pipe, the water inlet pipe, the sewage draining pipe and the water discharging pipe are respectively provided with the valve.
Preferably, one end of the screw plug is slidably connected with the inside of the fixing net, and one end of the feeding pipe is located inside the fixing net.
Preferably, the method for returning biogas slurry to field in a green manner and capable of reducing nitrogen and phosphorus loss comprises the following steps
The method comprises the following steps: fertilizing the rice according to the standard of 240kg per hectare, and firstly applying 40% of base fertilizer according to the mass percentage during rice planting; when the tillering fertilizer needs to be added, 40 percent of tillering fertilizer is applied, but the tillering fertilizer is added twice, 20 percent of leaf fertilizer is applied each time, and the interval time between the two leaf fertilizer applications is 3 to 5 days; when spike fertilizer needs to be applied, 20% of spike fertilizer is applied, the spike fertilizer is added in two times, 20% of leaf fertilizer is applied each time, and the interval time between the two leaf fertilizer applications is 15 days; according to the method, too high concentration of biogas slurry in the rice field is avoided by applying diluted biogas slurry to the rice for many times, and the loss of most nitrogen and phosphorus nutrients in the biogas slurry is prevented, so that the biogas slurry is applied according to the growth requirement of the rice, and the rice can conveniently and quickly absorb the nutrients in the biogas slurry;
step two: when the rice needs to be fertilized, introducing biogas slurry into the feeding pipe, wherein the biogas slurry penetrates through the second gauze layer and the fixing net and enters the cylinder, impurities in the biogas slurry are left in the second gauze layer, and liquid enters the storage tank through the drain pipe on the side wall of the cylinder; the biogas slurry filtering efficiency is reduced along with the gradual increase of impurities in the second gauze layer, the pull rod is pulled at the moment, the fixed sleeve and the rubber pad are driven by the pull rod to move back and forth, and when the rubber pad moves towards the direction of the limiting ring, the biogas slurry in the second gauze layer extrudes the funnel-shaped rubber pad to enable the elastic rubber pad to be propped open to be tightly attached to the side wall of the second gauze layer to move, so that the rubber pad extrudes the biogas slurry in the second gauze layer, and the filtering efficiency of the biogas slurry is improved; when the rubber pad moves towards the direction of the fixed block, the rubber pad contracts and is separated from the second gauze layer, so that the rubber pad can move conveniently; when the impurities adsorbed in the second gauze layer are excessive and need to be cleaned, closing the drain pipe, connecting the water inlet pipe with a water source, allowing water to enter the cylinder, allowing the water to reversely penetrate through the fixing net and the second gauze layer, performing backflushing on the second gauze layer, opening the drain pipe, discharging the impurities in the second gauze layer, and facilitating cleaning of the second gauze layer;
step three: determining the volume of biogas slurry in the storage pool according to the metering valve on the side wall of the drain pipe, connecting a water suction pump with the water pipe, adding water into the biogas slurry, determining the amount of water entering the storage pool according to the metering valve on the side wall of the water pipe, wherein the volume ratio of the biogas slurry to the water is 2; when the biogas slurry is placed in the storage pool for 5-7 hours, the biogas slurry in the storage pool can be pumped into the rice field through the extraction mechanism.
Compared with the prior art, the biogas slurry green returning device and the method for reducing nitrogen and phosphorus loss have the following beneficial effects:
the invention provides a biogas slurry green returning device and a method for reducing nitrogen and phosphorus loss, wherein when a paddy field is fertilized, 40% of base fertilizer is applied firstly when paddy rice is planted according to the mass percentage; when the tillering fertilizer needs to be added, 40 percent of the tillering fertilizer is applied, but the tillering fertilizer is added twice, 20 percent of leaf fertilizer is applied each time, and the interval time between the two leaf fertilizer applications is 3 to 5 days; when spike fertilizer needs to be applied, 20% of spike fertilizer is applied, the spike fertilizer is added in two times, 20% of leaf fertilizer is applied each time, and the interval time between the two leaf fertilizer applications is 15 days; according to the method, the diluted biogas slurry is applied to the rice for multiple times, so that the excessive high concentration of the biogas slurry in the rice field is avoided, and the loss of most nitrogen and phosphorus nutrients in the biogas slurry in a broken runoff manner is prevented, so that the biogas slurry is applied according to the growth requirements of the rice, and the rice can conveniently and rapidly absorb the nutrients in the biogas slurry; before the time is needed, introducing the biogas slurry into the feeding pipe, wherein the biogas slurry penetrates through the second gauze layer and the fixing net to enter the cylinder, impurities in the biogas slurry are left in the second gauze layer, and the liquid enters the storage tank through the drain pipe on the side wall of the cylinder; the biogas slurry filtering efficiency is reduced along with the gradual increase of impurities in the second gauze layer, the pull rod is pulled at the moment, the fixed sleeve and the rubber pad are driven by the pull rod to move back and forth, and when the rubber pad moves towards the direction of the limiting ring, the biogas slurry in the second gauze layer extrudes the funnel-shaped rubber pad to enable the elastic rubber pad to be propped open to be tightly attached to the side wall of the second gauze layer to move, so that the rubber pad extrudes the biogas slurry in the second gauze layer, and the filtering efficiency of the biogas slurry is improved; when the rubber pad moves towards the direction of the fixed block, the rubber pad contracts and is separated from the second gauze layer, so that the rubber pad can move conveniently; when the inside adsorbed impurity of second gauze layer is too much when needing to clear up, close the drain pipe will the external water source of inlet tube, water gets into the inside of barrel, water is reverse to be run through the fixed network with the second gauze layer is right the second gauze layer is recoil, opens the blow off pipe will the inside impurity discharge of second gauze layer is convenient for clear up the second gauze layer, thereby accelerate the efficiency that second gauze layer filters natural pond liquid.
Drawings
Fig. 1 is a schematic structural diagram of a biogas slurry green field returning device and a method for reducing nitrogen and phosphorus loss provided by the invention;
FIG. 2 is a top view of the fan blade structure shown in FIG. 1;
FIG. 3 is an enlarged view of the structure at A shown in FIG. 1;
FIG. 4 is an enlarged view of the structure shown at B in FIG. 1;
fig. 5 is an enlarged view of the structure at C shown in fig. 2.
Reference numbers in the figures: 1. the device comprises a storage pool, 2, a metering valve, 3, an extraction mechanism, 31, a base, 32, a support rod, 33, a connecting pipe, 34, a fixed cover, 35, a first gauze layer, 36, a water pump, 4, an adjusting mechanism, 41, a water pipe, 42, a rotating rod, 43, fan blades, 44, a spray head, 5, an impurity removing mechanism, 51, a water inlet pipe, 52, a barrel, 53, a screw plug, 54, a valve, 55, a sewage discharge pipe, 56, a water discharge pipe, 6, a filtering mechanism, 61, a fixed block, 62, a limiting ring, 63, a feed pipe, 64, a fixed net, 65, a second gauze layer, 66, a rubber pad, 67, a fixed sleeve, 68, a pull rod, 7, an anti-blocking mechanism, 71, a fixed frame, 72, a slide rod, 73, a lug, 74 and a spring.
Detailed Description
The invention is further described with reference to the following figures and embodiments.
Please refer to fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5 in combination, wherein fig. 1 is a schematic structural diagram of a biogas slurry green returning apparatus and a method thereof for reducing nitrogen and phosphorus loss according to the present invention; FIG. 2 is a top view of the fan blade structure shown in FIG. 1; FIG. 3 is an enlarged view of the structure at A shown in FIG. 1; FIG. 4 is an enlarged view of the structure shown at B in FIG. 1; fig. 5 is an enlarged view of the structure at C shown in fig. 2. Reduce the green still field device of natural pond liquid that nitrogen phosphorus runs off includes: a storage tank 1; the impurity removing mechanism 5 comprises a water inlet pipe 51, a cylinder 52, a screw plug 53, a valve 54, a sewage discharge pipe 55 and a water discharge pipe 56, wherein the cylinder 52 is installed at the top end of the storage pool 1, the cylinder 52 is in threaded connection with the screw plug 53, and the sewage discharge pipe 55 is installed inside the screw plug 53; the side wall of the cylinder 52 is symmetrically provided with the water inlet pipe 51 and the water outlet pipe 56; the filtering mechanism 6 comprises a fixing block 61, a limiting ring 62, a feeding pipe 63, a fixing net 64, a second gauze layer 65, a rubber pad 66, a fixing sleeve 67 and a pull rod 68, wherein the fixing block 61 is installed at one end of the cylinder 52, the fixing net 64 is installed at one end of the fixing block 61, and the second gauze layer 65 is installed in the fixing net 64; the feeding pipe 63 is installed on the side wall of the cylinder 52, the limiting ring 62 is installed at one end of the feeding pipe 63, and the limiting ring 62 abuts against the fixing sleeve 67; the fixed sleeve 67 is in sliding connection with the feeding pipe 63, the rubber pad 66 and the pull rod 68 are respectively mounted on the side wall of the fixed sleeve 67, the rubber pad 66 with elasticity is in sliding connection with the second gauze layer 65, and the pull rod 68 is in sliding connection with the fixed block 61; the adjusting mechanism 4 is installed inside the storage pool 1; the anti-blocking mechanism 7 is fixed inside the adjusting mechanism 4, and the anti-blocking mechanism 7 is fixed inside the adjusting mechanism 4; and the extraction mechanism 3 is arranged in the storage pool 1.
The adjusting mechanism 4 comprises a water pipe 41, rotating rods 42, fan blades 43 and a spray head 44, the water pipe 41 is installed inside the storage pool 1, and the bottom end of the water pipe 41 is rotatably connected with the rotating rods 42; the lateral wall symmetry installation of bull stick 42 the flabellum 43, the lateral wall edge symmetry of flabellum 43 is installed perpendicularly shower nozzle 44, for the convenience water passes through water pipe 41 gets into the bull stick 42 with the inside of flabellum 43, water is followed spout in the shower nozzle 44 again, follows shower nozzle 44 spun water reverse promotion the flabellum 43 with the bull stick 42 rotates, the bull stick 42 is in rotate in the water pipe 41, just flabellum 43 rotates and makes the even and natural pond liquid of water mix.
The anti-blocking mechanism 7 comprises a fixed frame 71, a sliding rod 72, a convex block 73 and a spring 74, wherein the fixed frame 71 is installed inside the fan blade 43, the side wall of the fixed frame 71 is connected with the sliding rod 72 in a sliding manner, one end of the sliding rod 72 is fixedly connected with the convex block 73, the convex block 73 is clamped with the spray head 44, two ends of the spring 74 are respectively and fixedly connected with the sliding rod 72 and the fan blade 43, the magnetic convex block 73 adsorbs the spray head 44, the magnetic sliding rod 72 at one end adsorbs the side wall of the fixed frame 71, when water is sprayed out of the spray head 44, the water pushes the convex block 73 and the sliding rod 72 to move and pull out the spring 74, so that the sliding rod 72 adsorbs the side wall of the fixed frame 71, and the water is sprayed out of the spray head 44 conveniently; when the spray head 44 does not spray water, the spring 74 contracts to drive the projection 73 to enter the interior of the spray head 44, and the projection 73 is adsorbed and clamped with the spray head 44 to prevent other substances from entering the interior of the spray head 44 to cause blockage.
The lifting mechanism 3 comprises a base 31, a support rod 32, a connecting pipe 33, a fixed cover 34, a first gauze layer 35 and a water pump 36, wherein the base 31 is arranged in the storage pool 1, two ends of the support rod 32 are respectively fixedly connected with the base 31 and the fixed cover 34, and the side walls of the support rods 32 are sleeved on the first gauze layer 35; the water pump 36 is installed on the surface of the base 31, the connecting pipe 33 is installed on the side wall of the water pump 36, so that in order to facilitate the operation of the water pump 36, the liquid inside the storage pool 1 penetrates through the first gauze layer 35 to be in contact with the water pump 36, the water pump 36 is operated to pump the liquid out of the storage pool 1 to enter the paddy field, and the first gauze layer 35 prevents impurities in the liquid from being in contact with the water pump 36, so that the water pump 36 is prevented from being blocked.
The side walls of the connecting pipe 33, the water pipe 41 and the water discharge pipe 56 are respectively provided with a metering valve 2, so that the amount of water passing through the connecting pipe 33, the water pipe 41 and the water discharge pipe 56 can be known through the metering valve 2; and the side walls of the feeding pipe 63, the water inlet pipe 51, the sewage draining pipe 55 and the water draining pipe 56 are respectively provided with the valve 54, so that the feeding pipe 63, the water inlet pipe 51, the sewage draining pipe 55 and the water draining pipe 56 can be controlled to be opened and closed conveniently.
One end of the screw plug 53 is slidably connected with the inside of the fixing net 64, one end of the feeding pipe 63 is located inside the fixing net 64, so that the bolt 53 can be conveniently taken out, the inside of the fixing net 64 is opened, and residues inside the fixing net 64 can be conveniently cleaned.
A biogas slurry green field returning method for reducing nitrogen and phosphorus loss comprises the following steps
The method comprises the following steps: fertilizing the rice according to the standard of 240kg per hectare, and firstly applying 40% of base fertilizer according to the mass percentage during rice planting; when the tillering fertilizer needs to be added, 40 percent of tillering fertilizer is applied, but the tillering fertilizer is added twice, 20 percent of leaf fertilizer is applied each time, and the interval time between the two leaf fertilizer applications is 3 to 5 days; when spike fertilizer needs to be applied, 20% of spike fertilizer is applied, the spike fertilizer is added in two times, 20% of leaf fertilizer is applied each time, and the interval time between the two leaf fertilizer applications is 15 days; according to the method, the diluted biogas slurry is applied to the rice for multiple times, so that the excessive high concentration of the biogas slurry in the rice field is avoided, and the loss of most nitrogen and phosphorus nutrients in the biogas slurry in a broken runoff manner is prevented, so that the biogas slurry is applied according to the growth requirements of the rice, and the rice can conveniently and rapidly absorb the nutrients in the biogas slurry;
step two: when the rice needs to be fertilized, biogas slurry is introduced into the feeding pipe 63, penetrates through the second gauze layer 65 and the fixing net 64 and enters the inside of the cylinder body 52, impurities in the biogas slurry are left in the second gauze layer 65, and liquid enters the inside of the storage pool 1 through the drain pipe 56 on the side wall of the cylinder body 52; as the impurities in the second gauze layer 65 gradually increase, the biogas slurry filtering efficiency slows down, at the moment, the pull rod 68 is pulled, the pull rod 68 drives the fixed sleeve 67 and the rubber pad 66 to move back and forth, and when the rubber pad 66 moves towards the direction of the limiting ring 62, the biogas slurry in the second gauze layer 65 extrudes the funnel-shaped rubber pad 66, so that the elastic rubber pad 66 is spread to closely adhere to the side wall of the second gauze layer 65 to move, and the rubber pad 66 extrudes the biogas slurry in the second gauze layer 65, thereby accelerating the filtering efficiency of the biogas slurry; when the rubber pad 66 moves towards the fixed block 61, the rubber pad 66 contracts and is separated from the second gauze layer 65, so that the rubber pad 66 moves conveniently; when the impurities adsorbed in the second gauze layer 65 are excessive and need to be cleaned, the drain pipe 56 is closed, the water inlet pipe 51 is connected with an external water source, water enters the cylinder 52 and reversely penetrates through the fixing net 64 and the second gauze layer 65, the second gauze layer 65 is backflushed, the sewage discharge pipe 55 is opened, the impurities in the second gauze layer 65 are discharged, and the second gauze layer 65 is convenient to clean;
step three: determining the volume of biogas slurry in the storage pool 1 according to the metering valve 2 on the side wall of the drain pipe 56, connecting a water suction pump with the water pipe 41, adding water into the biogas slurry, determining the amount of water entering the storage pool 1 according to the metering valve 2 on the side wall of the water pipe 41, wherein the volume ratio of the biogas slurry to the water is 2; when water enters the rotating rod 42 and the fan blades 43 through the water pipe 41, the water is sprayed out from the spray head 44, the fan blades 43 and the rotating rod 42 are pushed to rotate in the reverse direction by the water sprayed out from the spray head 44, the rotating rod 42 rotates in the water pipe 41, the fan blades 43 rotate to enable the water to be uniformly mixed with biogas slurry, and when the water is sprayed out from the spray head 44, the water pushes the lug 73 and the sliding rod 72 to move to pull out the spring 74, so that the sliding rod 72 is adsorbed on the side wall of the fixed frame 71, and the water is sprayed out from the spray head 44 conveniently; when the spray head 44 does not spray water, the spring 74 contracts to drive the projection 73 to enter the interior of the spray head 44, and the projection 73 is adsorbed and clamped with the spray head 44 to prevent other substances from entering the interior of the spray head 44 to cause blockage. After the biogas slurry is placed in the storage tank 1 for 5 to 7 hours, the water pump 36 is externally connected with a power supply, the water pump 36 operates, the liquid in the storage tank 1 penetrates through the first gauze layer 35 to be in contact with the water pump 36, the water pump 36 operates to pump the liquid out of the storage tank 1 to enter a rice field, and the first gauze layer 35 prevents impurities in the liquid from being in contact with the water pump 36 and prevents the water pump 36 from being blocked.
The above description is only an embodiment of the present invention, and is not intended to limit the scope of the present invention, and all equivalent structures or equivalent processes performed by the present invention or directly or indirectly applied to other related technical fields are included in the scope of the present invention.
Claims (8)
1. The utility model provides a reduce green still field device of natural pond liquid that nitrogen phosphorus runs off which characterized in that includes:
a storage tank (1);
the impurity removing mechanism (5) comprises a water inlet pipe (51), a cylinder (52), a screw plug (53), a valve (54), a sewage discharge pipe (55) and a water discharge pipe (56), the cylinder (52) is installed at the top end of the storage pool (1), the cylinder (52) is in threaded connection with the screw plug (53), and the sewage discharge pipe (55) is installed inside the screw plug (53); the side wall of the cylinder body (52) is symmetrically provided with the water inlet pipe (51) and the water outlet pipe (56);
the filtering device comprises a filtering mechanism (6), wherein the filtering mechanism (6) comprises a fixing block (61), a limiting ring (62), a feeding pipe (63), a fixing net (64), a second gauze layer (65), a rubber pad (66), a fixing sleeve (67) and a pull rod (68), the fixing block (61) is installed at one end of the barrel body (52), the fixing net (64) is installed at one end of the fixing block (61), and the second gauze layer (65) is installed inside the fixing net (64); the feeding pipe (63) is installed on the side wall of the barrel body (52), the limiting ring (62) is installed at one end of the feeding pipe (63), and the limiting ring (62) abuts against the fixing sleeve (67); the fixed sleeve (67) is in sliding connection with the feeding pipe (63), the rubber pad (66) and the pull rod (68) are respectively installed on the side wall of the fixed sleeve (67), the rubber pad (66) and the second gauze layer (65) are in sliding connection with each other with elasticity, and the pull rod (68) is in sliding connection with the fixed block (61);
the adjusting mechanism (4), the said adjusting mechanism (4) is mounted inside the said reservoir (1);
the anti-blocking mechanism (7), the anti-blocking mechanism (7) is fixed in the adjusting mechanism (4);
an extraction mechanism (3), wherein the extraction mechanism (3) is arranged inside the storage pool (1).
2. The biogas slurry green returning device for reducing nitrogen and phosphorus loss according to claim 1, wherein the adjusting mechanism (4) comprises a water pipe (41), a rotating rod (42), fan blades (43) and a spray head (44), the water pipe (41) is installed inside the storage pool (1), and the bottom end of the water pipe (41) is rotatably connected with the rotating rods (42); the fan blades (43) are symmetrically arranged on the side wall of the rotating rod (42), and the spray heads (44) are symmetrically and vertically arranged on the edges of the side wall of the fan blades (43).
3. The biogas slurry green returning device capable of reducing nitrogen and phosphorus loss according to claim 2, wherein the anti-blocking mechanism (7) comprises a fixing frame (71), a sliding rod (72), a convex block (73) and a spring (74), the fixing frame (71) is installed inside the fan blade (43), the side wall of the fixing frame (71) is slidably connected with the sliding rod (72), one end of the sliding rod (72) is fixedly connected with the convex block (73), the convex block (73) is clamped with the spray head (44), and two ends of the spring (74) are respectively fixedly connected with the sliding rod (72) and the fan blade (43).
4. The biogas slurry green returning device for reducing nitrogen and phosphorus loss as claimed in claim 3, wherein the magnetic projection (73) is attached to the nozzle (44), and the magnetic slide bar (72) at one end is attached to the side wall of the fixing frame (71).
5. The biogas slurry green field returning device for reducing nitrogen and phosphorus loss according to claim 4, wherein the lifting mechanism (3) comprises a base (31), a support rod (32), a connecting pipe (33), a fixed cover (34), a first gauze layer (35) and a water pump (36), the base (31) is installed inside the storage pool (1), two ends of the support rod (32) are respectively and fixedly connected with the base (31) and the fixed cover (34), and the side walls of the support rods (32) are sleeved on the first gauze layer (35); the water pump (36) is installed on the surface of the base (31), and the connecting pipe (33) is installed on the side wall of the water pump (36).
6. The device for reducing nitrogen and phosphorus loss in the green biogas slurry field as claimed in claim 5, wherein the metering valves (2) are respectively installed on the side walls of the connecting pipe (33), the water pipe (41) and the water discharging pipe (56), and the valves (54) are respectively installed on the side walls of the feeding pipe (63), the water inlet pipe (51), the sewage discharging pipe (55) and the water discharging pipe (56).
7. The device for returning biogas slurry to field with green effect for reducing nitrogen and phosphorus loss as claimed in claim 6, wherein one end of the screw plug (53) is slidably connected with the inside of the fixing net (64), and one end of the feeding pipe (63) is located inside the fixing net (64).
8. The method for returning biogas slurry to the field in green environment for reducing nitrogen and phosphorus loss in the device for returning biogas slurry to the field in green environment for reducing nitrogen and phosphorus loss in claim 7 is characterized by comprising the following steps
The method comprises the following steps: fertilizing the rice according to the standard of 240kg per hectare, and firstly applying 40% of base fertilizer according to the mass percentage during rice planting; when the tillering fertilizer needs to be added, 40 percent of tillering fertilizer is applied, but the tillering fertilizer is added twice, 20 percent of leaf fertilizer is applied each time, and the interval time between the two leaf fertilizer applications is 3 to 5 days; when spike fertilizer needs to be applied, 20% of spike fertilizer is applied, the spike fertilizer is added in two times, 20% of leaf fertilizer is applied each time, and the interval time between the two leaf fertilizer applications is 15 days; according to the method, the diluted biogas slurry is applied to the rice for multiple times, so that the excessive high concentration of the biogas slurry in the rice field is avoided, and the loss of most nitrogen and phosphorus nutrients in the biogas slurry in a broken runoff manner is prevented, so that the biogas slurry is applied according to the growth requirements of the rice, and the rice can conveniently and rapidly absorb the nutrients in the biogas slurry;
step two: when the rice needs to be fertilized, biogas slurry is introduced into the feeding pipe (63), the biogas slurry penetrates through the second gauze layer (65) and the fixing net (64) and enters the inside of the cylinder body (52), impurities in the biogas slurry are left in the second gauze layer (65), and liquid enters the inside of the storage pool (1) through the drainage pipe (56) on the side wall of the cylinder body (52); as the impurities in the second gauze layer (65) are gradually increased, the biogas slurry filtering efficiency is reduced, the pull rod (68) is pulled at the moment, the pull rod (68) drives the fixed sleeve (67) and the rubber pad (66) to move back and forth, and when the rubber pad (66) moves towards the direction of the limiting ring (62), the biogas slurry in the second gauze layer (65) extrudes the funnel-shaped rubber pad (66) to enable the elastic rubber pad (66) to be propped open to tightly cling to the side wall of the second gauze layer (65) to move, so that the rubber pad (66) extrudes the biogas slurry in the second gauze layer (65), and the filtering efficiency of the biogas slurry is improved; when the rubber pad (66) moves towards the direction of the fixed block (61), the rubber pad (66) contracts and is separated from the second gauze layer (65), so that the rubber pad (66) moves; when the impurities adsorbed in the second gauze layer (65) are excessive and need to be cleaned, closing the drain pipe (56), connecting the water inlet pipe (51) with an external water source, enabling water to enter the cylinder body (52), enabling the water to reversely penetrate through the fixing net (64) and the second gauze layer (65), performing backflushing on the second gauze layer (65), opening the drain pipe (55), discharging the impurities in the second gauze layer (65), and conveniently cleaning the second gauze layer (65);
step three: determining the volume of biogas slurry in the storage pool (1) according to the metering valve (2) on the side wall of the drain pipe (56), connecting a water pump with the water pipe (41), adding water into the biogas slurry, determining the amount of water entering the storage pool (1) according to the metering valve (2) on the side wall of the water pipe (41), wherein the volume ratio of the biogas slurry to the water is 2; when the biogas slurry is placed in the storage pool (1) for 5-7 hours, the biogas slurry in the storage pool (1) can be pumped into the rice field through the extraction mechanism (3).
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107580847A (en) * | 2017-09-08 | 2018-01-16 | 临泉县生产力促进中心 | A kind of agricultural efficiently watering fertilizer apparatus |
| CN209234754U (en) * | 2018-10-29 | 2019-08-13 | 佛山市铁人环保科技有限公司 | One kind spraying equipment |
| CN211056933U (en) * | 2019-09-03 | 2020-07-21 | 泌阳县豫新牧业有限公司 | Planting and livestock ecological cycle planting and breeding device |
| US11352282B1 (en) * | 2020-12-15 | 2022-06-07 | Jilin Jianzhu University | Method for reusing farmland drainage |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107580847A (en) * | 2017-09-08 | 2018-01-16 | 临泉县生产力促进中心 | A kind of agricultural efficiently watering fertilizer apparatus |
| CN209234754U (en) * | 2018-10-29 | 2019-08-13 | 佛山市铁人环保科技有限公司 | One kind spraying equipment |
| CN211056933U (en) * | 2019-09-03 | 2020-07-21 | 泌阳县豫新牧业有限公司 | Planting and livestock ecological cycle planting and breeding device |
| US11352282B1 (en) * | 2020-12-15 | 2022-06-07 | Jilin Jianzhu University | Method for reusing farmland drainage |
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