Pollution treatment device for lake water eutrophication

Abstract

The invention discloses a lake water eutrophication pollution abatement device. The lake water eutrophication pollution abatement device comprises a ship body, a salvage bin and an algae dewatering bin, wherein the salvage bin is a through groove communicated with the water surface, a salvage portal frame is arranged above the salvage bin, and a winch used for hoisting is arranged on the salvage portal frame; wherein the lower end of a steel rope of the winch is connected with an isolation cover; the isolation cover is a circular cover body with an interlayer, and the interlayer is filled with an environment-friendly adsorbent for absorbing phosphorus; wherein an algae conveying frame is arranged at the end part of the ship body; a rotary conveying net for conveying algae on the water surface into the algae dewatering bin is arranged on the algae conveying frame; and a screw dehydration mechanism is arranged in the algae dehydration bin. On one hand, algae on the water surface are fished and dehydrated through the algae conveying frame and the screw dehydration mechanism, and harm caused by eutrophication is treated from the surface layer of the water body; and in addition, an environment-friendly adsorbent is arranged in the isolation cover to absorb nitrogen and phosphorus substances in the water body, so that induction factors of eutrophication of the water body are fundamentally reduced.

Description

Technical Field

[0001] The invention relates to the technical field of water pollution control, and in particular to a pollution control device for eutrophication of lake water. Background Art

[0002] Conventional engineering measures. These include excavating sediment deposits, conducting deep aeration of water bodies, flushing with water, and laying plastic on the surface of the sediment. Excavating sediment can reduce or even eliminate irreversible internal pollutants; deep aeration can be carried out regularly or irregularly to replenish oxygen through artificial deep aeration in the lake, so that there is no anaerobic fermentation layer between the water and sediment interface, and an aerobic state is often maintained, which is conducive to inhibiting the release of phosphorus from the sediment. In addition, if conditions permit, introducing water with low phosphorus and nitrogen concentrations into the lake can play a role in diluting the nutrient concentration.

[0003] In the prior art, patent application number CN201911294161.5 provides a reservoir water eutrophication control device and a control method thereof, the device includes a salvage hull, a salvage device, a backwashing device, a solid-liquid separation device, a dosing device and a spraying device, the salvage device includes two opening and closing water-stripping plates, a conveyor belt and a barb, the backwashing device is arranged below the conveyor belt, and includes a pump, a booster pump and a spray head, the solid-liquid separation device includes a collecting tank, a screw extrusion dehydrator and a dry material collection tank, the dosing device includes a dissolution chamber connected to the water outlet of the screw extrusion dehydrator, and the dissolution chamber is also connected to a medicine tank, and the spraying device includes a jet pump connected to the outlet end of the dissolution chamber, and a plurality of jet nozzles arranged around the tail end of the salvage hull. In short, the present invention has the advantages of novel structure, convenient use, and good control effect.

[0004] However, the existing technology can only salvage algae on the surface of the water body, and it is not convenient to dehydrate it, so the transfer volume is limited; in addition, it is not convenient to recycle nitrogen and phosphorus substances in the water body and the bottom mud, and it is impossible to deal with eutrophication of the water body from the root. Summary of the invention

[0005] The purpose of the present invention is to provide a pollution control device for lake water eutrophication, so as to solve the problems that conventional water eutrophication equipment is not convenient for dehydrating algae and has limited treatment of nitrogen and phosphorus in water and bottom mud.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] The present invention provides a pollution control device for eutrophication of lake water, comprising a hull, a salvage bin and an algae dehydration bin arranged on the hull;

[0008] The salvage bin is a through slot connected to the water surface, and a salvage gantry is provided above the salvage bin, and a winch for hoisting is provided on the salvage gantry;

[0009] An insulating cover is connected to the lower end of the steel rope of the hoist; the insulating cover is a circular cover with an interlayer, wherein the interlayer is filled with an environmentally friendly adsorbent for absorbing phosphorus;

[0010] An algae conveying rack is arranged at the end of the hull; a rotating conveying net for conveying algae on the water surface to the algae dehydration bin is arranged on the algae conveying rack; and a screw dehydration mechanism is arranged in the algae dehydration bin.

[0011] Furthermore, a cab is arranged on the hull.

[0012] Furthermore, the inner diameter of the salvage bin is greater than the outer diameter of the isolation cover.

[0013] Furthermore, the isolation cover is a conical cover, a sling for connecting a steel rope is arranged on the top of the isolation cover, and a plug-in ring that can be inserted into the bottom mud layer is connected to the bottom of the isolation cover; wherein the jacket structure of the isolation cover includes an outer cover and an inner cover that are connected as one, wherein a reserved cavity filled with the environmentally friendly adsorbent is reserved between the outer cover and the inner cover; wherein water-permeable holes connected to the reserved cavity are evenly spaced on the inner cover;

[0014] A plurality of discharge pipes for discharging the environmentally friendly adsorbent are also arranged on the isolation cover.

[0015] Furthermore, a circle of sealing plates is provided on the outer wall of the plug-in ring;

[0016] A ring bracket is fixedly arranged on the inner wall of the isolation cover; a plurality of hot water injection pipes are evenly spaced on the ring bracket; and each of the hot water injection pipes is connected through a connecting pipe;

[0017] The insulating cover is provided with a first flange pipe and a second flange pipe penetrating through the wall thickness thereof;

[0018] The hot water injection pipe is connected to an external hot water source through the first flange pipe.

[0019] Furthermore, the external hot water source includes a floating board floating on the water surface above the isolation cover, a solar water heater fixedly arranged on the floating board, a water pump and an insulated water pipe for introducing hot water in the solar water heater into the hot water injection pipe;

[0020] A photovoltaic power generation component for powering the water pump is also provided on the floating board;

[0021] The floating board and the isolation cover are detachably connected via a steel rope.

[0022] Furthermore, an air pump is also provided on the floating board, and the air outlet end of the air pump is connected to the second flange pipe through an air supply pipe to deliver air into the isolation cover; wherein the lower end of the second flange pipe is provided with an anti-blocking joint.

[0023] Furthermore, the screw dehydration mechanism includes a plurality of extrusion chambers disposed in the algae dehydration bin, a dehydration auger disposed in the extrusion chamber, and a storage bin disposed below the extrusion chamber;

[0024] A feed port for receiving algae is provided at one end of the extrusion chamber, and a discharge port connected to the storage bin is provided at the other end;

[0025] A drainage box is sleeved on the outside of the extrusion chamber; drainage holes connected to the drainage box are evenly opened on the outer peripheral wall of the extrusion chamber;

[0026] The drainage box discharges the squeezed water through a pipeline;

[0027] The two ends of the rotating shaft of the dehydration auger are respectively mounted on the wall of the algae dehydration bin through bearings;

[0028] The rotating shaft of the dehydrating auger is provided with a sprocket which is transmission-connected with the motor.

[0029] Furthermore, the extrusion chamber is a conical cylinder structure, the extrusion chamber is obliquely arranged in the algae dehydration bin, and the end with the smallest inner diameter of the extrusion chamber is higher than the end with the largest inner diameter of the extrusion chamber;

[0030] The dehydration auger is adapted to be installed in the extrusion chamber, and the rotating outer diameter of the dehydration auger contacts the inner wall of the extrusion chamber.

[0031] Furthermore, the middle part of the algae conveying rack is arranged at the end of the hull through a hinged seat, and a first deflection telescopic cylinder for adjusting the wading depth of the algae conveying rack is also arranged on the hull;

[0032] A collecting net frame is symmetrically arranged at one end of the algae conveying rack near the water, and a second deflection telescopic cylinder for respectively adjusting the opening and closing of the collecting net frame is arranged on the algae conveying rack through a door frame.

[0033] Compared with the prior art, the beneficial technical effects of the present invention are:

[0034] The present invention utilizes an algae conveying rack and a screw dehydration mechanism to salvage and dehydrate algae on the water surface, thereby treating the harm caused by eutrophication from the surface of the water body; in addition, an environmentally friendly adsorbent is arranged in the isolation cover to absorb and treat nitrogen and phosphorus substances in the water body, thereby fundamentally reducing the inducing factors of eutrophication of the water body. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The present invention will be further described below in conjunction with the accompanying drawings.

[0036] Figure 1 This is a schematic diagram of the hull structure in Example 1;

[0037] Figure 2 This is a schematic diagram of the structure when the hull is salvaged or an isolation cover is placed in Example 1;

[0038] Figure 3 This is a schematic cross-sectional view of the algae dehydration bin in Example 1;

[0039] Figure 4 It is a side cross-sectional schematic diagram in Example 1;

[0040] Figure 5 This is a schematic diagram of the structure of the isolation cover in Example 2;

[0041] Figure 6 This is a schematic diagram of the installation structure of the isolation cover in Example 2;

[0042] Figure 7 This is a schematic diagram of the arrangement of the hot water pipes for heating the bottom mud in Example 2;

[0043] Figure 8 For Example 2 Figure 6 Schematic diagram at point A in the middle.

[0044] Description of reference numerals: 1. hull; 101. salvage bin; 2. cab; 3. salvage gantry; 301. winch; 4. algae dehydration bin; 401. dehydration auger; 402. extrusion chamber; 4021. drainage hole; 4022. drainage box; 403. motor; 404. transmission chain; 405. transmission sprocket; 406. storage bin; 5. algae conveying rack; 501. first deflection telescopic cylinder; 6. collection net frame; 60 1. Second deflection telescopic cylinder; 7. Isolation cover; 701. Steel rope; 702. First flange pipe; 703. Discharge pipe; 704. Environmentally friendly adsorbent; 705. Lifting device; 706. Plug ring; 707. Second flange pipe; 708. Hot water injection pipe; 709. Ring bracket; 710. Connecting pipe; 711. Water permeable hole; 8. Floating board; 9. Solar water heater; 10. Air pump; 11. Water pump; 111. Insulated water pipe. DETAILED DESCRIPTION

[0045] Example 1

[0046] like Figure 1 As shown, in this embodiment, a pollution control device for eutrophication of lake water is disclosed, comprising a hull 1, a salvage bin 101 installed on the hull 1, and an algae dehydration bin 4. The salvage bin 101 is a through slot connected to the water surface, and a salvage gantry 3 is installed above the salvage bin 101, and a hoist 301 for lifting is installed on the salvage gantry 3; wherein an isolation cover 7 is connected to the lower end of the steel rope of the hoist 301. The isolation cover 7 is a circular cover with an interlayer, wherein the interlayer is filled with an environmentally friendly adsorbent 703 for absorbing phosphorus elements; specifically, the environmentally friendly adsorbent 703 is used to absorb organic phosphorus or inorganic phosphorus in the water body.

[0047] A driving cabin 2 is designed on the hull 1. The inner diameter of the salvage bin 101 is larger than the outer diameter of the isolation cover 7, so that the isolation cover 7 can be salvaged from the salvage bin 101.

[0048] An algae conveying rack 5 is installed at the end of the hull 1; a rotating conveying net for conveying algae on the water surface to the algae dehydration bin 4 is installed on the algae conveying rack 5; and a screw dehydration mechanism is installed in the algae dehydration bin 4.

[0049] In this embodiment, Figure 1 and Figure 2 As shown, the middle part of the algae conveying rack 5 is installed at the end of the hull 1 through a hinged seat, and a first deflection telescopic cylinder 501 for adjusting the wading depth of the algae conveying rack 5 is also installed on the hull 1, so as to adjust the lifting height of the wading end of the algae conveying rack 5 according to demand. A collection net frame 6 is symmetrically installed at the water-proximal end of the algae conveying rack 5, and a second deflection telescopic cylinder 601 for adjusting the opening and closing of the collection net frame 6 is installed on the algae conveying rack 5 through a door frame, wherein the collection net frame 6 is used to gather the algae floating on the water surface to the rotating conveying net on the algae conveying rack 5 by the collection net frame 6, and then the rotating conveying net is used to transport the algae to the algae dehydration warehouse 4; specifically, the rotating conveying net includes a roller installed on the algae conveying rack 5, a water-draining net sleeved on the roller, and a motor driving the roller to rotate; in specific implementation, at least one of the rollers is a deflection roller for vibrating the water-draining net.

[0050] like Figure 3-4As shown, in this embodiment, the screw dehydration mechanism includes three extrusion chambers 402 installed in the algae dehydration bin 4, three dehydration augers 401 respectively installed in each of the extrusion chambers 402, and a storage bin 406 installed below the extrusion chamber 402. A feed port for receiving algae is provided at one end of the extrusion chamber 402, specifically extending from the conveying end of the algae conveying rack 5 to the feed port for feeding; and a discharge port connected to the storage bin 406 is provided at the other end thereof for collecting the dehydrated algae.

[0051] A drainage box 4022 is provided on the outside of the extrusion chamber 402; drainage holes 4021 connected to the drainage box 4022 are evenly opened on the outer peripheral wall of the extrusion chamber 402; the drainage box 4022 discharges the squeezed water through a pipeline; the two ends of the rotating shaft of the dehydration auger 401 are respectively installed on the wall of the algae dehydration bin 4 through bearings; the rotating shaft of the dehydration auger 401 is provided with a sprocket connected to the motor transmission; specifically, it is driven by the motor 403.

[0052] In this embodiment, the extrusion chamber 402 is a conical cylinder structure, and the extrusion chamber 402 is installed in the algae dehydration bin 4 in an inclined manner, and the end with the smallest inner diameter of the extrusion chamber 402 is higher than the end with the largest inner diameter of the extrusion chamber 402; wherein the dehydration auger 401 is adapted to be installed in the extrusion chamber 402, and the rotating outer diameter of the dehydration auger 401 contacts the inner wall of the extrusion chamber 402.

[0053] Dehydration principle: in the process of transporting algae by using the dehydration auger 401, the rotation radius of the algae entering the dehydration auger 401 gradually becomes smaller, thereby squeezing the algae, and the squeezed algae is centrifuged during the rotating transportation process, so that the moisture enters the drainage box 4022 through the drainage hole 4021 on the wall of the extrusion chamber 402 for collection, and is discharged through the drainage pipe; at the same time, the algae that has been squeezed and dehydrated enters the storage bin 406 at the discharge port of the extrusion chamber 402, thereby realizing the dehydration of the algae, which is convenient for saving cabin space and transferring.

[0054] Example 2

[0055] On the basis of Example 1, Figure 5As shown, the isolation cover 7 is a conical cover, and a sling 705 for connecting a steel rope is installed on the top of the isolation cover 7, and a plug-in ring 706 that can be inserted into the bottom mud layer is connected to the bottom of the isolation cover 7. The jacket structure of the isolation cover 7 includes an outer cover and an inner cover that are connected as one, wherein a reserved cavity for filling the environmentally friendly adsorbent 703 is reserved between the outer cover and the inner cover; wherein water-permeable holes 11 connected to the reserved cavity are evenly spaced on the inner cover; it is convenient for phosphorus-containing substances in the water body to contact with the environmentally friendly adsorbent 703 and adsorb on the environmentally friendly adsorbent 703, so as to facilitate subsequent collection and fertilizer making; and a plurality of discharge pipes 703 for discharging the environmentally friendly adsorbent 703 are also installed on the isolation cover 7.

[0056] In this embodiment, Figure 6 As shown, a circle of sealing plates is also installed on the outer wall of the plug ring 706; wherein an annular bracket 709 is also fixedly installed on the inner wall of the isolation cover 7. A plurality of hot water injection pipes 708 are evenly installed on the annular bracket 709; wherein each of the hot water injection pipes 708 is connected through a connecting pipe 710; wherein a first flange pipe 702 and a second flange pipe 707 penetrating the wall thickness are installed on the isolation cover 7; wherein the hot water injection pipe 708 is connected to an external hot water source through the first flange pipe 702; thereby, the bottom mud is heated by introducing an external hot water source, thereby increasing the release of nitrogen-phosphorus substances in the bottom mud, and then adsorbed by using the environmentally friendly adsorbent 703.

[0057] Example 3

[0058] On the basis of Example 2, the external hot water source includes a floating board 8 floating on the water surface above the isolation cover 7, a solar water heater 9 fixedly mounted on the floating board 8, a water pump 11 for introducing hot water in the solar water heater 9 into the hot water injection pipe 708, and a heat preservation water pipe 111. Specifically, the floating board 8 and the isolation cover 7 are detachably connected by a steel rope 701, which facilitates the salvage and placement or fixation of the floating board 8 to avoid separation too far.

[0059] In this embodiment, a photovoltaic power generation component for powering the water pump 11 is also installed on the floating board 8, which is used for environmentally friendly power supply and continuous hot water heat supply. An air pump 10 is also installed on the floating board 8, and the air outlet of the air pump 10 is connected to the second flange pipe 707 through an air pipe to deliver air into the isolation cover 7; wherein an anti-blocking joint is installed at the lower end of the second flange pipe 707. The air pump 10 can be used to facilitate the isolation cover 7 to float quickly for recovery, salvage or replacement.

[0060] The above embodiments are only descriptions of the preferred methods of the invention, and are not intended to limit the scope of the invention. Without departing from the design spirit of the invention, various modifications and improvements made to the technical solutions of the invention by ordinary technicians in this field should fall within the protection scope of the claims of the invention.

Claims

1. A pollution control device for eutrophication of lake water, characterized by: It comprises a hull (1), a salvage bin (101) and an algae dehydration bin (4) arranged on the hull (1); The salvage bin (101) is a through slot connected to the water surface, and a salvage gantry (3) is arranged above the salvage bin (101), and a hoist (301) for lifting is arranged on the salvage gantry (3); An insulating cover (7) is connected to the lower end of the steel rope of the hoist (301); the insulating cover (7) is a circular cover body with an interlayer, wherein the interlayer is filled with an environmentally friendly adsorbent (703) for absorbing phosphorus elements; A water algae conveying rack (5) is arranged at the end of the hull (1); a rotating conveying net for conveying water algae on the water surface to the water algae dehydration bin (4) is arranged on the water algae conveying rack (5); and a screw dehydration mechanism is arranged in the water algae dehydration bin (4).

2. The pollution control device for lake eutrophication according to claim 1 is characterized in that: A driving cabin (2) is arranged on the hull (1).

3. The pollution control device for lake eutrophication according to claim 1 is characterized in that: The inner diameter of the salvage bin (101) is greater than the outer diameter of the isolation cover (7).

4. The pollution control device for lake eutrophication according to claim 3 is characterized in that: The isolation cover (7) is a conical cover, a sling (705) for connecting a steel rope is arranged on the top of the isolation cover (7), and a plug-in ring (706) that can be inserted into the bottom mud layer is connected to the bottom of the isolation cover (7); wherein the jacket structure of the isolation cover (7) comprises an outer cover and an inner cover that are integrally connected, wherein a reserved cavity for filling the environmentally friendly adsorbent (703) is reserved between the outer cover and the inner cover; wherein water-permeable holes (11) communicating with the reserved cavity are evenly spaced on the inner cover; A plurality of discharge pipes (703) for discharging the environmentally friendly adsorbent (703) are also provided on the isolation cover (7).

5. The pollution control device for lake eutrophication according to claim 4 is characterized in that: A circle of sealing plates is also provided on the outer wall of the plug-in ring (706); A ring bracket (709) is fixedly arranged on the inner wall of the isolation cover (7); a plurality of hot water injection pipes (708) are evenly spaced on the ring bracket (709); and the hot water injection pipes (708) are connected to each other via a connecting pipe (710); The insulating cover (7) is provided with a first flange pipe (702) and a second flange pipe (707) penetrating the wall thickness thereof; The hot water injection pipe (708) is connected to an external hot water source through the first flange pipe (702).

6. The pollution control device for lake eutrophication according to claim 5 is characterized by: The external hot water source comprises a floating board (8) floating on the water surface above the isolation cover (7), a solar water heater (9) fixedly arranged on the floating board (8), a water pump (11) for introducing hot water in the solar water heater (9) into the hot water injection pipe (708), and a heat-insulating water pipe (111); A photovoltaic power generation component for supplying power to the water pump (11) is also provided on the floating board (8); The floating plate (8) and the isolation cover (7) are detachably connected via a steel rope (701).

7. The pollution control device for lake eutrophication according to claim 6 is characterized by: An air pump (10) is also provided on the floating plate (8), and the air outlet end of the air pump (10) is connected to the second flange pipe (707) through an air supply pipe to deliver air into the isolation cover (7); wherein the lower end of the second flange pipe (707) is provided with an anti-blocking joint.

8. The pollution control device for lake eutrophication according to claim 1 is characterized by: The screw dehydration mechanism comprises a plurality of extrusion chambers (402) arranged in the algae dehydration bin (4), a dehydration auger (401) arranged in the extrusion chamber (402), and a storage bin (406) arranged below the extrusion chamber (402); A feed port for receiving algae is provided at one end of the extrusion chamber (402), and a discharge port connected to the storage bin (406) is provided at the other end; A drainage box (4022) is sleeved on the outside of the extrusion chamber (402); drainage holes (4021) communicating with the drainage box (4022) are evenly opened on the outer peripheral wall of the extrusion chamber (402); wherein the drainage box (4022) discharges the squeezed water through a pipeline; The two ends of the rotating shaft of the dehydration auger (401) are respectively mounted on the wall of the algae dehydration bin (4) through bearings; The rotating shaft of the dehydrating auger (401) is provided with a sprocket which is transmission-connected to the motor.

9. The pollution control device for lake eutrophication according to claim 8, characterized in that: The extrusion chamber (402) is a conical cylinder structure, the extrusion chamber (402) is arranged obliquely in the algae dehydration bin (4), and the end with the smallest inner diameter of the extrusion chamber (402) is higher than the end with the largest inner diameter of the extrusion chamber (402); The dehydration auger (401) is adapted to be installed in the extrusion chamber (402), and the rotating outer diameter of the dehydration auger (401) contacts the inner wall of the extrusion chamber (402).

10. The pollution control device for lake eutrophication according to claim 1, characterized in that: The middle part of the algae conveying rack (5) is arranged at the end of the hull (1) through a hinged seat, and a first deflection telescopic cylinder (501) for adjusting the wading depth of the algae conveying rack (5) is also arranged on the hull (1); A collecting net frame (6) is symmetrically arranged at the water-proximal end of the algae conveying frame (5), and a second deflection telescopic cylinder (601) for adjusting the opening and closing of the collecting net frame (6) is arranged on the algae conveying frame (5) through a door frame.

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