CN114920370A - River channel silt prevention aeration device and method - Google Patents
River channel silt prevention aeration device and method Download PDFInfo
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- CN114920370A CN114920370A CN202210717320.3A CN202210717320A CN114920370A CN 114920370 A CN114920370 A CN 114920370A CN 202210717320 A CN202210717320 A CN 202210717320A CN 114920370 A CN114920370 A CN 114920370A
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- 238000005273 aeration Methods 0.000 title claims abstract description 52
- 238000000034 method Methods 0.000 title claims abstract description 12
- 230000002265 prevention Effects 0.000 title claims description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 194
- 238000005192 partition Methods 0.000 claims abstract description 44
- 230000001105 regulatory effect Effects 0.000 claims abstract description 14
- 239000004576 sand Substances 0.000 claims abstract description 13
- 230000003068 static effect Effects 0.000 claims abstract description 13
- 230000000295 complement effect Effects 0.000 claims abstract description 7
- 239000012535 impurity Substances 0.000 claims description 9
- 238000004062 sedimentation Methods 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 7
- 238000001556 precipitation Methods 0.000 claims description 5
- 230000000087 stabilizing effect Effects 0.000 claims description 3
- 238000001226 reprecipitation Methods 0.000 claims description 2
- 239000010802 sludge Substances 0.000 claims 4
- 238000005276 aerator Methods 0.000 claims 1
- 230000008021 deposition Effects 0.000 abstract description 2
- 239000002002 slurry Substances 0.000 description 7
- 230000008901 benefit Effects 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 238000001914 filtration Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F7/00—Aeration of stretches of water
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/007—Contaminated open waterways, rivers, lakes or ponds
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Barrages (AREA)
Abstract
The invention discloses a river channel silt-prevention aeration device and method, which comprise an aeration disc, a mud conveying pipe, a mud pump, a folding hose, a rigid silt inlet pipe, a fixed rod, a horizontal grid, a sand settling pond, a water outlet pipe, a flow regulating grid, a water outlet, a partition plate, an overflow port, a water inlet chamber, a static water chamber, a partition settling chamber, a wind-solar-electricity complementary power supply unit and the like. The invention is arranged at the position where the water areas such as a river channel, a lake, a reservoir, a pond and the like are easy to deposit, the silt inlet is fixed at the bottom of the water, floating mud and water at the bottom of the water areas are pumped to the bank together through a mud pump, the floating mud and the water flow into a desilting basin after full aeration for deposition, and clear water on the upper layer flows back to the water areas.
Description
Technical Field
The invention belongs to the field of water environment treatment, and particularly relates to a river channel silt prevention aeration device and method.
Background
The water environment is an important component of natural ecological environment, but along with the acceleration of the development of industry and agriculture and the urbanization process, the deterioration of the water environment becomes a fact that the struggle is not met. The land is low and flat in plain areas, the water body has poor fluidity and weak self-cleaning capability, and stagnant water is easily formed, so that the land can cause serious negative effects on local water ecological environment, river navigation, residential suitability, industrial and agricultural development and the like in the long-term past. The invention realizes the daily silt prevention of the easy siltation part of the river channel, and the full aeration removes a part of harmful volatile substances in the water, increases the dissolved oxygen in the water body, enhances the fluidity of the water body of the river channel, and can form beautiful water landscape while maintaining the water environment and health.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a river channel silt prevention aeration device and method.
The invention adopts the following specific technical scheme:
in a first aspect, the invention provides a river channel silt-prevention aeration device, which comprises an aeration disc, a mud conveying pipe, a mud pump, a folding hose, a rigid silt inlet pipe, a fixed rod, a horizontal grid, a silt basin, a water outlet pipe, a flow regulating grid and a partition plate, wherein the aeration disc is arranged on the top of the water outlet pipe; the desilting basin is arranged on a river bank and has a three-section structure, the first section is a water inlet chamber, the middle section is a still water chamber, the rear section is a partition settling chamber, a horizontal grid is covered above the water surface of the water inlet chamber, the longitudinal section of the water inlet chamber is trapezoidal, the water passing section of the water inlet chamber is gradually increased along the water flow direction, and the water flow speed is gradually reduced; a flow regulating grid for stabilizing water flow is arranged at the junction of the water inlet chamber and the still water chamber; the partition sedimentation chamber is divided into a plurality of compartments by a plurality of partition plates in the flowing direction of water flow, a water outlet is reserved at the middle upper part of each partition plate, the compartments at the two sides of each partition plate are only communicated through the water outlets on the partition plates, the tail end of the last compartment is provided with an overflow port, and the overflow port is externally connected with a water outlet pipe and is communicated with a river channel; the outlet end of the mud pump is connected with one end of a mud conveying pipe, the other end of the mud conveying pipe is provided with an aeration disc which can discharge water upwards, the aeration disc is positioned right above the horizontal grating, and river water and silt discharged from the aeration disc fall onto the horizontal grating to be filtered and then enter the water inlet chamber; the inlet end of the slurry pump is connected with a folding hose which is connected with a rigid silt inlet pipe, a silt inlet at the bottom end of the rigid silt inlet pipe extends into the position below the water surface of the river channel and is close to the river bed, and the rigid silt inlet pipe is fixed through a fixing rod inserted into the river bed.
Preferably, the water outlets on all the partition plates are at the same height, but are staggered from each other on the plane along the direction vertical to the water flow.
Preferably, the sand basin is arranged on the river bank along the trend of the river channel, the cross section of the sand basin is rectangular, the depth of the static water chamber is greater than that of the water inlet chamber and the partition sedimentation chamber, and the width of the static water chamber is consistent with that of the water inlet chamber and the partition sedimentation chamber.
Preferably, the height of the overflow port is higher than the height of the water outlets on all the partition plates.
Preferably, the aperture of the water outlet and the overflow port and the pipe diameter of the water outlet pipe are such that the maximum outflow flow of the desilting basin is not less than the rated flow of the mud pump.
Preferably, the slurry pump further comprises a wind driven generator, a solar generator, a self-contained power supply, a wind-solar-electricity complementary power supply unit and a power transmission line, wherein the wind driven generator, the solar generator and the self-contained power supply are arranged on the shore and are connected with the wind-solar-electricity complementary power supply unit through the power transmission line to provide power for the slurry pump.
Preferably, the slurry pump is fixed on shore.
Preferably, the mud conveying pipe is fixed on the side wall of the water inlet chamber.
Preferably, the rigid silt inlet pipe is fixed by two or more fixing rods.
In a second aspect, the present invention provides a method for preventing silt and aerating in a river channel by using the device for preventing silt and aerating in a river channel according to any of the above first aspects, which comprises the following specific steps: before starting to use, the length of the folding hose is adjusted to a proper length to be connected to the top end of the rigid silt inlet pipe, then the rigid silt inlet pipe is fixedly arranged at a position, easy to silt, of a river channel by using a fixing rod, and a silt inlet at the bottom end of the rigid silt inlet pipe is adjusted to be close to a river bed; when the device works, a mud pump is started, floating silt and water at the bottom of a river are pumped in from a silt inlet together, the floating silt and the water are sequentially input into an aeration disc along a rigid silt inlet pipe, a folding hose and a mud conveying pipe to carry out fountain aeration, the aerated muddy water falls onto a horizontal grid below the aeration disc, the horizontal grid intercepts large-particle-size impurities on one hand, regulates the water flow entering a water inlet chamber on the other hand, the muddy water in the water inlet chamber passes through a flow regulating grid and then smoothly flows into a static water chamber to be precipitated, the preliminarily precipitated muddy water sequentially enters each compartment of a subregion precipitation chamber through a water outlet on a partition plate to be reprecipitated, finally enters a water outlet pipe from an overflow port of a sand basin and finally flows into a river channel, and the silt in the sand basin is periodically cleaned.
The invention is arranged at the position where water areas such as a river channel, a lake, a reservoir, a pond and the like are easy to deposit, a silt inlet is fixed at the bottom of the water, floating mud and water at the bottom of the water areas are pumped to the bank together through a mud pump, the floating mud and the water flow into a desilting basin after full aeration for deposition, and clear water on the upper layer flows back to the water areas. The invention has the advantages of low operating cost, investment saving, no influence on the use of water surface in water area, remarkable social and economic benefits and the like, and has great research and popularization value under the large background of rapid development of urbanization and crisis of energy and water environment.
Drawings
FIG. 1 is a schematic front view of a river silt preventing aeration apparatus;
FIG. 2 is a schematic top view of the river silt preventing aeration apparatus;
FIG. 3 is a schematic sectional view of the sand basin;
reference numerals in fig. 1 to 3 are respectively: the system comprises an aeration disc 1, a mud conveying pipe 2, a mud pump 3, a folding hose 4, a rigid silt inlet pipe 5, a fixing rod 6, a horizontal grid 7, a desilting basin 8, a water outlet pipe 9, a flow regulating grid 10, a water outlet 11, a partition plate 12, an overflow port 13, a water inlet chamber 14, a still water chamber 15, a partition settling chamber 16, a wind driven generator 17, a solar generator 18, a self-contained power supply 19, a wind-solar-electricity complementary power supply unit 20, a power transmission line 21 and a silt inlet 22.
Detailed Description
The invention will be further elucidated and described with reference to the drawings and the detailed description. The technical features of the embodiments of the present invention can be combined correspondingly without mutual conflict.
As shown in fig. 1, fig. 2 and fig. 3, in a preferred embodiment of the present invention, there is provided a river silt prevention aeration apparatus, which mainly comprises an aeration plate 1, a mud pipe 2, a mud pump 3, a folding hose 4, a rigid silt inlet pipe 5, a fixing rod 6, a horizontal grid 7, a sand basin 8, a water outlet pipe 9, a flow regulating grid 10 and a partition plate 12.
Wherein, the desilting basin 8 is opened on the bank of a river and is used for filtering the silt in the river water. As shown in fig. 2, the desilting basin 8 has a three-section structure, the first section is a water inlet chamber 14, the middle section is a still water chamber 15, and the rear section is a partition settling chamber 16. The intake chamber 14 is located at the foremost end of the desilting basin 8, and a mixture of river water and silt is first injected into the intake chamber 14. In order to prevent impurities with too large particle size from blocking the sand basin 8, a horizontal grid 7 for filtering impurities with large particle size is covered above the water surface of the water inlet chamber 14. The longitudinal section of intake chamber 14 is trapezoidal, and on the direction that flows along rivers, the bottom surface downward sloping of intake chamber 14 gradually, consequently it crossed the water section and increases gradually along the rivers direction, can make the velocity of flow of rivers slow down gradually under the certain circumstances of inflow to do benefit to the sediment of little particle diameter and deposit. The junction of the water inlet chamber 14 and the still water chamber 15 is provided with a flow regulating grid 10 for stabilizing water flow. The muddy water in the water inlet chamber 14 passes through the flow regulating grid 10 and then smoothly flows into the static water chamber 15 for sedimentation. The partition settling chamber 16 is divided into a plurality of compartments by a plurality of partition plates 12 along the flowing direction of water flow, a water outlet 11 is reserved at the middle upper part of each partition plate 12, the compartments at two sides of each partition plate 12 are only communicated through the water outlets 11 on the partition plates 12, the tail end of the last compartment is provided with an overflow port 13, and the overflow port 13 is externally connected with a water outlet pipe 9 and is communicated with a river channel.
In order to ensure that the water flow is kept relatively stable in the process of sequentially flowing through each compartment and the retention time is increased as much as possible, in this embodiment, the water outlets 11 on all the partition plates 12 are arranged at the same height, but are staggered from each other in the direction perpendicular to the water flow on the plane, that is, the heights of the water outlets 11 shown in fig. 3 are the same, and the adjacent water outlets 11 in fig. 2 are staggered from each other in the left-right direction. The purpose of this is to increase the water path length for better sedimentation.
It should be noted that, as can be seen from fig. 3, the water outlet 11 of each partition 12 is opened at the middle-upper part of the partition 12, but does not reach the top of the partition 12, so that the water outlet 11 opened on the partition 12 in the plan view of fig. 2 is not drawn according to the standard six-view. The position of the notch in fig. 2, where the water outlet 11 is located, should actually be below the top surface of the plate body of the partition plate 12 in a top view, and the notch is shown merely to facilitate understanding of the position of the notch on the plane.
Generally speaking, the desilting basin 8 can be set on the bank along the trend of river course, and the cross section is rectangular. In this embodiment, as shown in fig. 3, the depth of the static water chamber 15 is greater than the depths of the inlet chamber 14 and the partition settling chamber 16, so as to ensure that the water flow in the static water chamber 15 is as slow as possible and the silt can be greatly settled. The width of the static water chamber 15 is the same as that of the water inlet chamber 14 and the partition settling chamber 16. In addition, the height of the overflow port 13 is higher than the height of the water outlet 11 on all the partition plates 12.
In the invention, the horizontal grating 7 and the flow regulating grating 10 can be realized by adopting an open-cell grating, and the open cells on the horizontal grating 7 and the flow regulating grating 10 can be in a long-strip rectangular shape, a grid shape or a uniform sieve pore shape, thereby playing the roles of filtering and uniformly guiding the flow. The size of the holes in the horizontal grating 7 and the flow regulating grating 10 is determined according to the specific conditions of silt and impurities in the river channel, so that the impurities which easily cause the blockage of the subsequent links can be intercepted.
In addition, in order to avoid the overflow of the water in the desilting basin 8, the aperture of the water outlet 11 and the overflow port 13 and the pipe diameter of the water outlet pipe 9 are such that the maximum outflow rate of the desilting basin 8 is not less than the rated flow rate of the mud pump 3.
The slurry pump 3 is a power device of the whole river channel silt prevention aeration device, and the specific model is not limited, so that the slurry pump can convey a mixture of water and river bottom silt. The mud pump 3 can be arranged on the shore side, but can be erected above the river channel through a bracket. The outlet end of the mud pump 3 is connected with one end of a mud conveying pipe 2, and the other end of the mud conveying pipe 2 is provided with an aeration disc 1 which can discharge water upwards. The mud pipe 2 can be fixed on the side wall of the water inlet chamber 14 to prevent the mud pipe from moving. In the embodiment, the aeration disc 1 is in a bell mouth shape with an upward opening, the mixture of water and silt input by the silt conveying pipe 2 can be sprayed upwards in a fountain-like mode after entering the aeration disc 1, and river water is in contact with the atmosphere for reoxygenation in the process. The aeration disc 1 is positioned right above the horizontal grating 7, river water and silt discharged from the aeration disc 1 fall onto the horizontal grating 7 to be filtered, impurities with large particle sizes are filtered on the horizontal grating 7, and impurities with small particle sizes, silt and river water enter the water inlet chamber 14. The inlet end of the mud pump 3 is connected with one end of a folding hose 4, the other end of the folding hose 4 is connected with the top end of a rigid silt inlet pipe 5, and a silt inlet 22 at the bottom end of the rigid silt inlet pipe 5 extends into the position below the water surface of a river channel and is close to the river bed. Because the river water is in a continuous flowing state, in order to ensure that the position of the rigid silt inlet pipe 5 is relatively fixed and avoid the phenomenon of shaking by too large amplitude, the rigid silt inlet pipe 5 can be fixed by a fixing rod 6 inserted into a riverbed.
In the invention, the folding hose 4 has certain flexibility, and can ensure that the rigid silt inlet pipe 5 has certain relative movement freedom in the installation and use processes. In this embodiment, the folding hose 4 may be implemented in the form of a bellows or the like.
In addition, in order to avoid the deformation of the folding hose 4 caused by the rotation of the rigid silt inlet pipe 5 under the action of water flow or wind power, the rigid silt inlet pipe 5 can be fixed by two or more fixing rods 6 at the same time. When in fixation, the connecting pieces connected with the fixed rods 6 can be arranged at different heights of the rigid silt inlet pipe 5.
In addition, the apparatus of the present invention is generally installed in water areas such as rivers, lakes, reservoirs, ponds, etc. containing a large amount of sand, and the slurry pumps 3 therein often need to be operated for a long time. Therefore, in order to provide power for the mud pump 3, in the present embodiment, a wind power generator 17, a solar power generator 18, a self-contained power supply 19, a wind-solar-electricity hybrid power supply unit 20 and a power transmission line 21 are further provided, the wind power generator 17, the solar power generator 18 and the self-contained power supply 19 are all provided on the shore, the wind power generator 17 and the solar power generator 18 can generate electric energy through wind power generation and solar power generation, the self-contained power supply 19 is preferably a storage battery, and the wind power generator 17, the solar power generator 18 and the self-contained power supply 19 are all connected with the wind-solar-electricity hybrid power supply unit 20 through the power transmission line 21 to provide power for the mud pump 3. The wind-solar-electric complementary power supply unit 20 can select the power input of the mud pump 3 according to the current practical situation. The electric energy generated by the wind power generator 17 and the solar power generator 18 can be stored in the storage battery, and when the wind power generator 17 and the solar power generator 18 do not generate enough electric energy, the storage battery can provide the electric power source. Of course, the self-contained power supply 19 can also be connected to the power grid to get power when the mains supply is allowed.
In another embodiment of the present invention, there is further provided a river channel silt prevention aeration method using the above river channel silt prevention aeration apparatus, which comprises the following steps:
before starting to use, the length of the folding hose 4 is adjusted to a proper length to be connected to the top end of the rigid silt inlet pipe 5, then the rigid silt inlet pipe 5 is fixedly arranged at a position, easy to silt, of a river channel by using a fixing rod 6, and a silt inlet 22 at the bottom end of the rigid silt inlet pipe 5 is adjusted to be close to a river bed; when the device works, the mud pump 3 is started, floating silt at the bottom of a river and water are pumped in from the silt inlet 22, the mud and water are sequentially input into the aeration disc 1 along the rigid silt inlet pipe 5, the folding hose 4 and the mud conveying pipe 2 for fountain aeration, aerated mud and water fall into the horizontal grating 7 below, on one hand, the horizontal grating 7 intercepts large-particle-size impurities, on the other hand, adjusts water flow entering the water inlet chamber 14, the mud and water in the water inlet chamber 14 smoothly flow into the static water chamber 15 for precipitation after passing through the flow adjusting grating 10, the primarily precipitated mud and water sequentially enter each compartment of the partition precipitation chamber 16 through the water outlet 11 on the partition plate 12 for re-precipitation, finally, the mud and water enters the water outlet pipe 9 from the overflow port 13 of the sand basin 8 and finally flows into a river channel, and the silt in the sand basin 8 reaches a certain amount and is periodically cleaned by workers.
It should be noted that the river channel silt prevention aeration apparatus of the present invention can be arranged at different positions in one river channel, and the specific river bed position into which the fixing rod 6 is inserted can be selected according to actual conditions.
The device can be arranged at the position where water areas such as riverways, lakes, reservoirs, ponds and the like are easy to deposit, the silt inlet is fixed at the bottom of the water, floating mud and water at the bottom of the water areas are pumped to the bank through a mud pump, the floating mud and the water flow into a desilting basin for sedimentation after sufficient aeration, and the clear water at the upper layer flows back to the water areas. The invention realizes the daily silt prevention of easy silting places of water areas such as river channels, reservoirs, lakes, ponds and the like, fully aerates to remove a part of harmful volatile substances in the water, increases dissolved oxygen in the water, enhances the fluidity of the water area, and can form beautiful water landscape while maintaining the water environment and the health of the water areas. The invention has the advantages of low operating cost, investment saving, no influence on the use of water surface in water area, remarkable social and economic benefits and the like, and has great research and popularization value under the large background of rapid development of urbanization and crisis of energy and water environment.
The above-mentioned embodiments are merely preferred embodiments of the present invention, but the present invention is not limited thereto, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, such as the type and shape of the silt basin, the type of the aeration device, the connecting position and manner of the mud pipe and the silt basin, the fixing manner of the silt inlet, etc. Therefore, the technical scheme obtained by adopting the mode of equivalent replacement or equivalent transformation is within the protection scope of the invention.
Claims (10)
1. A river silt prevention aeration device is characterized by comprising an aeration disc (1), a mud conveying pipe (2), a mud pump (3), a folding hose (4), a rigid mud inlet pipe (5), a fixed rod (6), a horizontal grid (7), a desilting basin (8), a water outlet pipe (9), a flow regulating grid (10) and a partition plate (12); the desilting basin (8) is opened on a river bank and is of a three-section structure, the first section is an inlet chamber (14), the middle section is a static water chamber (15), the rear section is a partition settling chamber (16), a horizontal grid (7) is covered above the water surface of the inlet chamber (14), the longitudinal section of the inlet chamber (14) is trapezoidal, the water passing section of the inlet chamber is gradually increased along the water flow direction, and the water flow speed is gradually reduced; a flow regulating grid (10) for stabilizing water flow is arranged at the junction of the water inlet chamber (14) and the still water chamber (15); the partition settling chamber (16) is divided into a plurality of compartments by a plurality of partition plates (12) along the flowing direction of water flow, a water outlet (11) is reserved at the middle upper part of each partition plate (12), the compartments at two sides of each partition plate (12) are only communicated through the water outlet (11) on the partition plate (12), the tail end of the last compartment is provided with an overflow port (13), and the overflow port (13) is externally connected with a water outlet pipe (9) and is communicated with a river channel; the outlet end of the mud pump (3) is connected with one end of the mud conveying pipe (2), the other end of the mud conveying pipe (2) is provided with an aeration disc (1) which can discharge water upwards, the aeration disc (1) is positioned right above the horizontal grating (7), and river water and silt discharged from the aeration disc (1) fall onto the horizontal grating (7) to be filtered and then enter the water inlet chamber (14); the inlet end of the mud pump (3) is connected with a folding hose (4), the folding hose (4) is connected with a rigid silt inlet pipe (5), a silt inlet (22) at the bottom end of the rigid silt inlet pipe (5) extends into the position below the water surface of a river channel and is close to the river bed, and the rigid silt inlet pipe (5) is fixed through a fixing rod (6) inserted into the river bed.
2. A river silt prevention aeration device according to claim 1, wherein the water outlets (11) of all the partition plates (12) are at the same height, but are staggered from each other in the direction perpendicular to the water flow on the plane.
3. The river channel silt prevention aeration device according to claim 1, wherein the desilting basin (8) is opened along the course of the river on the river bank, the cross section is rectangular, the depth of the static water chamber (15) is larger than the depth of the water inlet chamber (14) and the partitioned settling chamber (16), and the width of the static water chamber (15) is consistent with the width of the water inlet chamber (14) and the partitioned settling chamber (16).
4. The river channel silt prevention aeration apparatus according to claim 1, wherein the height of the overflow port (13) is higher than the height of the water outlet (11) on all the partition plates (12).
5. A silt-preventing aerator for river channels according to claim 1, characterized in that the aperture of the water outlet (11) and the overflow port (13) and the diameter of the water outlet pipe (9) are such that the maximum outflow of the silt basin (8) is not less than the rated flow of the mud pump (3).
6. The river channel silt prevention aeration device according to claim 1, further comprising a wind power generator (17), a solar power generator (18), a self-contained power supply (19), a wind-solar-electricity complementary power supply unit (20), and a power transmission line (21), wherein the wind power generator (17), the solar power generator (18) and the self-contained power supply (19) are all arranged on a shore, and are connected with the wind-solar-electricity complementary power supply unit (20) through the power transmission line (21) to provide power for the mud pump (3).
7. The river channel silt prevention aeration apparatus according to claim 1, wherein the mud pump (3) is fixed on the bank.
8. The river channel silt prevention aeration apparatus according to claim 1, wherein the mud pipe (2) is fixed on the side wall of the water inlet chamber (14).
9. The river channel silt prevention aeration apparatus according to claim 1, wherein the rigid silt inlet pipe (5) is fixed by two or more fixing rods (6).
10. A river channel silt prevention aeration method by using the river channel silt prevention aeration device according to any one of claims 1 to 9, characterized in that before starting to use, the length of the folding hose (4) is adjusted to a proper length to be connected to the top end of the rigid silt inlet pipe (5), then the rigid silt inlet pipe (5) is fixedly arranged at a position where the river channel is easy to silt by using a fixing rod (6), and a silt inlet (22) at the bottom end of the rigid silt inlet pipe (5) is adjusted to be close to a river bed; when the device works, the mud pump (3) is started to pump floating silt at the river bottom together with water from the silt inlet (22), the floating silt and the water are sequentially pumped into the silt inlet along the rigid silt inlet pipe (5) and the folding hose (4), the sludge conveying pipe (2) is input into the aeration disc (1) for fountain aeration, aerated sludge water falls onto a horizontal grid (7) below, the horizontal grid (7) intercepts large-particle-size impurities on the one hand, and regulates water flow entering the water inlet chamber (14) on the other hand, the sludge water in the water inlet chamber (14) passes through the flow regulating grid (10) and then smoothly flows into the static water chamber (15) for precipitation, the primarily precipitated sludge water sequentially enters each compartment of the subarea precipitation chamber (16) through a water outlet (11) on the partition plate (12) for re-precipitation, finally enters the water outlet pipe (9) from an overflow port (13) of the sand sedimentation tank (8) and finally flows into a river channel, and silt in the sand sedimentation tank (8) is periodically cleaned.
Priority Applications (1)
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