A drying device and an algae collecting vessel using the same

Abstract

The present invention provides an algae collecting vessel, which transfers the algae in the dehydration device to the drying chamber, helps the hull to drain water smoothly, reduces the hull's running resistance, and increases the inflow, so that more algae can be collected, and the water content in the algae can be further reduced, the weight can be reduced, and the collection amount and collection efficiency can be improved.

Description

Technical Field

[0001] The present invention relates to the field of horizontal cleaning, in particular to an algae collecting boat. Background Art

[0002] With the development of society, the problem of eutrophication of inland rivers and lakes is becoming increasingly serious, especially as algae blooms on the water surface. Once global warming occurs, these algae will stink and harm aquatic animals. If the deteriorating water quality is not promptly salvaged, it will seriously impact people's daily lives. ZL201910805931.1 discloses a fully automatic algae collection and dewatering vessel. While this vessel has proven effective in actual use, it still faces the following technical challenges: Since the algae are collected in algae sludge dewatering tanks, which also serve as drainage vessels, excessive algae accumulation in these tanks can result in poor drainage, impacting collection efficiency. Summary of the Invention

[0003] One aspect of the present invention is to provide a drying device for an algae collection vessel to solve the technical problem in the prior art that, since all algae are collected in an algae mud dehydration tank, which also has the function of drainage, excessive algae mud in the algae mud dehydration tank will cause poor drainage and affect the collection efficiency.

[0004] To achieve the above objectives, the present invention provides, in one aspect, a drying device for an algae collection vessel, comprising a conveying device and a drying chamber. The conveying device is capable of transporting algae floating on the water surface into the drying chamber, which is capable of reducing the water content of the algae. Transferring algae from the dehydration device to the drying chamber facilitates drainage from the vessel, reducing hull resistance and increasing inflow, thereby collecting more algae and further reducing the water content of the algae, reducing weight, and improving collection volume and efficiency. The drying chamber can reduce the water content of the algae through heating, vacuum extraction, and filtration.

[0005] Furthermore, the drying chamber includes a wastewater chamber, a filter, and a wastewater suction device. The wastewater chamber is located at the bottom of the drying chamber. The wastewater suction device is connected to the wastewater chamber. The filter cooperates with the conveying device to receive the algae transported into the drying chamber. The filter is used to filter out moisture from the algae, and the filtered water is discharged through the wastewater suction device. This drying method is more cost-effective than methods such as heating and vacuum drying.

[0006] Furthermore, the drying device of the algae collecting vessel further comprises a squeezing device, which cooperates with the conveying device to squeeze the algae conveyed by the conveying device. The squeezing device squeezes out water from the algae to improve dehydration efficiency.

[0007] Furthermore, the drying chamber also includes a dehydration chamber, the top of the drying chamber is open, the filter is circumferentially connected to the side wall of the drying chamber, and the filter divides the drying chamber into a dehydration chamber and a wastewater chamber. The dehydration chamber is located in the upper part of the drying chamber, and the wastewater chamber is located in the lower part of the drying chamber.

[0008] Furthermore, the filter screen includes a bottom screen and a side screen, wherein the side screen extends upward along the circumference of the bottom screen and is circumferentially connected to the side wall of the drying chamber, thereby making the dehydration chamber larger and accommodating more algae, thereby increasing the collection volume.

[0009] Furthermore, the conveying equipment includes a crawler, a scraper, a transfer plate, an axle and a driver. The scraper and the transfer plate cooperate with each other. The driver drives the axle to make the crawler rotate counterclockwise, and the algae floating on the water surface are transported to the drying chamber through the scraper along the transfer plate.

[0010] Furthermore, the conveying equipment includes a mesh track, a wheel axle and a driver. The driver drives the wheel axle to make the mesh track rotate clockwise, and the algae floating on the water surface are transported to the drying chamber through the mesh track.

[0011] Furthermore, the conveying equipment is a lead conveyor.

[0012] Furthermore, the wastewater suction equipment is connected to the bottom of the wastewater chamber through a suction and discharge pipe.

[0013] Furthermore, the extrusion equipment is a plate and frame filter press, a belt filter press or a screw press.

[0014] In one aspect, the present invention provides an algae collection vessel comprising a flocculant spraying device, a flocculation device, a flocculation chamber, and the aforementioned drying device. The algae collection vessel has an opening at its front end. The flocculant spraying device, flocculation device, dehydration device, and drying device are sequentially arranged along the water inlet direction. The conveying device is capable of conveying algae floating on the water surface of the dehydration device into the drying chamber. The flocculant spraying device injects flocculant into the algae water, which then mixes with the flocculant and flows into the flocculation device. The flocculation device thoroughly mixes the algae water and flocculant, causing the algae to break through the walls and flow out of the water, thereby effectively flocculating the algae. The broken algae are suspended on the water surface of the dehydration device. Water flowing in through the opening and water from the broken algae walls are discharged by the dehydration device. The broken algae are conveyed by the conveying device to the drying chamber, where the water content of the algae is further reduced through heating, drying, vacuum extraction, and filtration.

[0015] The flocculation device further includes a water deflector and an overflow plate, arranged sequentially along the water inlet direction. The upper end of the water deflector is above the water surface and the lower end is open, while the overflow plate extends upward from the bottom of the hull and has an open upper end. The algae-water flows in through the lower opening of the water deflector and out through the upper opening of the overflow plate, mixing in an up-and-down manner, ensuring more thorough mixing and reaction between the algae-water and the flocculant.

[0016] Furthermore, the invention also includes a garbage filter grating, which is arranged between the water guide plate and the opening. The garbage filter grating can prevent other large garbage except algae from entering the hull and affecting the normal operation of the hull.

[0017] The device further comprises a mounting member and an adjustment gate. Mounting members are provided on either side of the opening. The adjustment gate is located behind the mounting member in the water inlet direction and is rotatably connected to the bottom of the hull. The flocculant spraying device is located at the top of the adjustment gate. The water inflow can be adjusted by controlling the closing of the adjustment gate, thereby balancing the water inflow and outflow of the hull as much as possible, ensuring smooth water flow and reducing resistance during navigation. Furthermore, the algae layer can be controlled to just pass over the adjustment gate, thereby blocking most of the clean water. The mounting member can be integrally formed with the hull or can also serve as a sealing component.

[0018] Furthermore, it also includes an algae scraping device or baffle, which is detachably connected to the mounting member. The algae scraping device includes a rotating shaft, a scraping plate, and a motor. The scraping plate is arranged on the rotating shaft, and the motor drives the rotating shaft to rotate. The baffle consists of two pieces, each in a triangular shape, and one edge of each baffle is detachably connected to the mounting member. The algae scraping device and baffle are suitable for different scenarios and can be installed according to needs. When the algae are relatively thin, it is difficult to control the algae layer to just pass through the adjustment gate while most of the clean water is blocked outside the adjustment gate. The hull can be installed with a baffle, which reduces the area of the opening, so that the algae layer gathers in an eight-shaped shape at the reduced inlet. The algae layer becomes relatively thicker, making it easier to adjust the adjustment gate so that the algae layer just passes through the adjustment gate while most of the clean water is blocked outside the adjustment gate. When algae gather, the hull can be installed with an algae scraping device to improve the efficiency of salvaging.

[0019] Furthermore, the dewatering device includes a dewatering chamber, a pumping device, and a filter. The dewatering chamber is open at the top, and its side panel located in the direction of water inlet serves as the overflow plate. The filter is circumferentially connected to the side wall of the dewatering chamber, and the pumping device is connected to the bottom of the dewatering chamber. The dewatering device is responsible for draining water that enters the hull overboard, reducing navigation resistance and increasing the inflow of algae, thereby increasing the amount of algae collected. The filter collects algae and small debris that are pumped out with the discharge water, preventing them from being discharged out of the hull by the pumping device.

[0020] Furthermore, it also includes two tractors, two fences, a propeller, an energy supply device and a water filling device. The fences are connected to the two sides of the front end of the hull at one end, and are connected to the tractors at the other end. The propeller is arranged at the rear end of the hull. The energy supply device can enable the propeller and other equipment on the ship to operate. The water filling device is arranged at the bottom of the dehydration tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0022] Figure 1 This is an overhead view of the algae collection vessel.

[0023] Figure 2 This is the main view of the algae collection vessel

[0024] Figure 3 This is the operating principle diagram of the algae collection ship

[0025] Figure 4 This is the left side view of the algae collection boat (with the baffle installed)

[0026] Figure 5 This is the left side view of the algae collecting boat (with the algae scraping device installed)

[0027] Among them, the above-mentioned drawings include the following figure marks: flocculant spraying device 1, flocculation device 2, water guide plate 21, overflow plate 22, dehydration device 3, dehydration chamber 31, pumping equipment 32, filter screen 33, drying device 4, conveying equipment 41, crawler 411, scraper 412, transmission plate 413, axle 414, drying chamber 42, wastewater chamber 421, filter screen 422, bottom net 4221, side net 4222, wastewater suction equipment 423, discharge and suction pipe 424, dehydration chamber 425, squeezing equipment 43, opening 5, garbage filter 6, tractor 7, fence 8, propeller 9, energy supply device 10, water irrigation device 11, adjustment door 12, baffle 13, algae scraping device 14, rotating shaft 141, scraping plate 142, motor 143, mounting part 15. DETAILED DESCRIPTION

[0028] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0029] As shown in Figures 1 and 2, the present invention provides an algae collecting boat including a flocculant spraying device 1, a flocculation device 2, a dehydration device 3 and a drying device 4. An opening 5 is provided at the front end of the algae collecting boat. The flocculant spraying device 1, the flocculation device 2, the dehydration device 3 and the drying device 4 are arranged in sequence along the water inlet direction. The drying device 4 includes a conveying device 41 and a drying chamber 42. The conveying device 41 can convey the algae floating on the water surface of the dehydration device 3 to the drying chamber 42. Flocculant is added to the algae water through the flocculant spraying device 1. The algae water and flocculant are mixed and then flow into the flocculation device 2. The flocculation device 2 fully mixes the algae water and flocculant, causing the algae to break through the walls and flow out of the water, thereby being effectively flocculated. The broken algae are suspended on the water surface of the dehydration device 3. The water flowing in from the opening 5 and the water from the broken algae walls are discharged by the dehydration device 3. The broken algae are transported to the drying chamber 42 by the conveying equipment 41, and the moisture in the algae is further reduced by heating and drying, vacuum drying, filtering, etc.

[0030] In this embodiment, the algae in the dehydration device 3 is transferred to the drying chamber 42 to help the hull to drain smoothly, reduce the hull's driving resistance, and increase the inflow, so that more algae can be collected, and the water content in the algae can be further reduced, the weight can be reduced, and the collection volume and collection efficiency can be improved. The water content in the algae can be reduced in the drying chamber 42 by heating and drying, vacuum drying, filtering, etc.

[0031] Furthermore, if Figure 1 、 2 As shown, the drying chamber 42 includes a wastewater chamber 421, a filter 422 and a wastewater suction device 423. The wastewater chamber 421 is located at the bottom of the drying chamber 42. The wastewater suction device 423 is connected to the bottom of the wastewater chamber 421 through a suction pipe 424. The filter 422 cooperates with the conveying device 41 to receive the algae conveyed to the drying chamber 42. The drying chamber 42 also includes a dehydration chamber 425. The top of the drying chamber 42 is open. The filter 422 is circumferentially connected to the side wall of the drying chamber 42. Then, the filter screen 422 divides the drying chamber 42 into a dehydration chamber 425 and a wastewater chamber 421. The dehydration chamber 425 is located at the upper part of the drying chamber 42, and the wastewater chamber 421 is located at the lower part of the drying chamber 42; the filter screen 422 includes a bottom net 4221 and a side net 4222. The side net 4222 extends upward along the circumference of the bottom net 4221, and the side net 4222 is circumferentially connected to the side wall of the drying chamber 42. This arrangement makes the dehydration chamber 425 larger, can accommodate more algae, and increase the collection amount.

[0032] In this embodiment, the filter 422 is used to filter out the water in the algae, and the filtered water is discharged through the wastewater suction device 423. This drying method is less expensive than heating drying, vacuum drying and other methods.

[0033] Furthermore, if Figure 1As shown in Figure 2, optionally, the conveying equipment 41 includes a track 411, a scraper 412, a transfer plate 413, a wheel axle 414 and a driver, the driver drives the wheel axle 414 to rotate the track 411 counterclockwise, and the algae floating on the water surface of the dehydration device is transported to the drying chamber 42 along the transfer plate 413 through the scraper 412; optionally, the conveying equipment 41 includes a mesh track 411, a wheel axle 414 and a driver, the driver drives the wheel axle 414 to rotate the mesh track 411 clockwise, and the algae floating on the water surface of the dehydration device is transported to the drying chamber 42 through the mesh track 411; optionally, the conveying equipment 41 is a lead conveyor.

[0034] Furthermore, if Figure 1 、 2 As shown, the drying device 4 further includes an extrusion device 43, which cooperates with the conveying device 41 to squeeze the algae conveyed by the conveying device 41; optionally, the extrusion device 43 is a plate and frame filter press, a belt filter press or a screw press.

[0035] In this embodiment, the squeezing device squeezes out the water in the algae to improve the dehydration efficiency.

[0036] Furthermore, if Figure 1 、 2 As shown, the flocculation device 2 includes a water guide plate 21 and an overflow plate 22. The water guide plate 21 and the overflow plate 22 are arranged in sequence along the water inlet direction. The upper end of the water guide plate 21 is higher than the water surface and the lower end is open. The overflow plate 22 extends upward from the bottom of the hull and has an open upper end. The algae collecting boat also includes a mounting part 15 and an adjusting door 12. The mounting parts 15 are respectively provided on both sides of the opening 5. The adjusting door 12 is provided behind the mounting part 15 along the water inlet direction and is rotatably connected to the bottom of the hull. The flocculant spraying device 1 is provided at the top of the adjusting door 12. The mounting part 15 can be integrally formed with the hull or a component that also has a sealing function. The mounting part 15 is usually a sealing baffle with a number of screw holes provided thereon. It has the function of sealing the adjusting door 12 and also serves as an installation accessory. The water inlet can be adjusted by controlling the closing of the adjusting door 12, so that the water inlet and water outlet of the hull can be balanced as much as possible, so that the water flow is smooth and the resistance during navigation is reduced, and the algae layer can be controlled to just pass over the adjusting door and most of the clean water is blocked.

[0037] Furthermore, if Figure 4 、 5As shown, the mounting member 15 can selectively install an algae scraping device 14 or a baffle 13. The algae scraping device 14 or the baffle 13 is detachably connected to the mounting member, usually connected to the screw holes on the sealing baffle by bolts. The algae scraping device 14 includes a rotating shaft 141, a scraping plate 142, and a motor 143. Several scraping plates 142 are arranged on the rotating shaft 141, and the motor 143 drives the rotating shaft 141 to rotate. The baffle 13 consists of two pieces, each of which is triangular. One side of the two baffles 13 is detachably connected to the mounting member 15.

[0038] The algae scraping device 14 and the baffle 13 are respectively suitable for different scenarios and are installed according to needs. When the algae are relatively thin, it is difficult to control the algae layer to just pass over the regulating gate 12 and most of the clean water is blocked outside the regulating gate 12. The hull can be installed with a baffle 13. The baffle 13 reduces the area of the opening 5, so that the algae layer gathers in an eight-shaped shape at the reduced inlet, and the algae layer becomes relatively thicker. The regulating gate 12 can more easily adjust the algae layer to just pass over the regulating gate 12 and most of the clean water is blocked outside the regulating gate 12. When algae gather, the hull can be installed with an algae scraping device 14 to improve the efficiency of salvaging.

[0039] In this embodiment, the algae water flows in from the lower opening of the water guide plate 21 and out from the upper opening of the overflow plate 22, and is mixed in the form of up and down tumbling, so that the algae water and the flocculant are more fully mixed and react more fully.

[0040] Furthermore, if Figure 1 、 2 As shown, the algae collecting ship further comprises a garbage filter 6, which is arranged between the water guide plate 21 and the opening 5, and can prevent other large garbage except algae from entering the hull and affecting the normal operation of the hull.

[0041] Furthermore, if Figure 1 、 2 As shown, the dehydration device includes a dehydration chamber 31, a pumping device 32 and a filter 33. The top of the dehydration chamber 31 is open, and the side plate located in front of the water inlet direction is the overflow plate 22. The filter 33 is circumferentially connected to the side wall of the dehydration chamber 31, and the pumping device 32 is connected to the bottom of the dehydration chamber 31.

[0042] Furthermore, if Figure 1 、 2 3, it also includes two tractors 7, two fences 8, a propeller 9, an energy supply device 10 and a water filling device 11. The fences 8 are connected to both sides of the front end of the hull at one end, and are connected to the tractors 7 at the other end. The propeller 9 is arranged at the rear end of the hull. The energy supply device 10 can make the propeller 9 and other equipment on the ship run. The water filling device 11 is arranged at the bottom of the dehydration tank 31.

[0043] Operation process description:

[0044] The operating steps corresponding to the above-mentioned invention are as follows: After completing pre-operation preparations based on the actual on-site conditions, two tractors 7, each pulling a fence 8, are deployed in a figure-eight shape. Simultaneously, the water filling device 11 on the algae collection vessel is opened, water is introduced into the dewatering chamber 31, and the entire algae collection vessel is lowered to the designed water level. That is, the bottom end of the opening 5 is lower than the water surface by a distance equal to the underwater portion of the fence 8. The water filling device 11 is closed, the regulating gate 12 is opened, and the pumping device 32 is activated, and the flocculant spraying device 1 is activated. As the tractors 7 advance, the algae and water ahead are intercepted and carried into the fence 8. The algae and a small amount of water floating on the surface of the water flow naturally over the regulating gate 12 and flow into the hull through the opening 5. The majority of the clean water is blocked by the regulating gate 12 and kept out of the vessel. Meanwhile, the algae that have passed the regulating gate 12 have been initially flocculated by the flocculant. Under the guidance of the pumping device 32, algae in the flocculation process flow from the lower opening of the water guide plate 21 and out the upper opening of the overflow plate 22, mixing and swirling, further flocculating. The algae then flow into the dehydration chamber 31 for retention. The conveying device 41 transfers the algae floating in the dehydration chamber 31 to the drying chamber 42, where they are filtered through the filter 33. The filtered water flows into the wastewater chamber 421 and is pumped out by the wastewater suction device 423.

[0045] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An algae collecting vessel, characterized in that: The system comprises a flocculant spraying device, a flocculation device, a dehydration device and a drying device. The drying device comprises a conveying device and a drying chamber. The dehydration device comprises a dehydration chamber. The conveying device can transport algae floating on the water surface of the dehydration chamber into the drying chamber. The drying chamber can reduce the water content of the algae. The conveying equipment includes a crawler, a scraper, a transfer plate, an axle and a driver. The scraper and the transfer plate cooperate with each other. The driver drives the axle to make the crawler rotate counterclockwise, and the algae floating on the water surface of the dehydration chamber is transported to the drying chamber through the scraper along the transfer plate.

2. The algae collecting vessel according to claim 1, characterized in that: The drying chamber includes a wastewater chamber, a filter screen and a wastewater suction device. The wastewater chamber is located at the bottom of the drying chamber, the wastewater suction device is connected to the wastewater chamber, and the filter screen cooperates with the conveying device to receive the algae conveyed into the drying chamber.

3. The algae collecting vessel according to claim 2, characterized in that: An extrusion device is provided in the drying chamber, and the extrusion device cooperates with the conveying device to extrude the algae conveyed by the conveying device.

4. The algae collecting vessel according to claim 2, characterized in that: The drying chamber also includes a dehydration chamber. The top of the drying chamber is open. The filter is circumferentially connected to the side wall of the drying chamber. The filter divides the drying chamber into a dehydration chamber and a wastewater chamber. The dehydration chamber is located in the upper part of the drying chamber, and the wastewater chamber is located in the lower part of the drying chamber.

5. The algae collecting vessel according to claim 4, characterized in that: The filter screen includes a bottom screen and a side screen. The side screen extends upward along the circumference of the bottom screen and is circumferentially connected to the side wall of the drying chamber.

6. The algae collecting vessel according to claim 2, characterized in that: The wastewater suction device is connected to the bottom of the wastewater chamber through a discharge and suction pipe.

7. The algae collecting vessel according to claim 3, characterized in that: The extrusion equipment is a plate and frame filter press, a belt filter press or a screw press.

8. The algae collecting vessel according to any one of claims 1 to 7, characterized in that: The algae collecting boat also includes a propeller and a power supply device. The propeller is arranged at the rear end of the hull, and the power supply device can enable the propeller to operate. An opening is provided at the front end of the algae collecting boat, and the flocculant spraying device, flocculation device, dehydration device and drying device are arranged in sequence along the water inlet direction.

9. The algae collecting vessel according to claim 8, characterized in that: The flocculation device includes a water guide plate and an overflow plate, which are arranged in sequence along the water inlet direction. The upper end of the water guide plate is higher than the water surface and the lower end is open. The overflow plate extends upward from the bottom of the hull and has an open upper end.

10. The algae collecting vessel according to claim 9, characterized in that: The algae collecting boat further comprises a garbage grating, which is arranged between the water guide plate and the opening at the front end of the algae collecting boat.

11. The algae collecting vessel according to claim 9, characterized in that: The algae collecting boat also includes a mounting part and an adjusting door. Mounting parts are respectively provided on both sides of the opening at the front end of the algae collecting boat. The adjusting door is arranged behind the mounting part along the water inlet direction. The adjusting door is rotatably connected to the bottom of the hull, and the flocculant spraying device is arranged at the top of the adjusting door.

12. The algae collecting vessel according to claim 11, characterized in that: The algae collecting boat also includes an algae scraping device or a baffle, which is detachably connected to the mounting member. The algae scraping device includes a rotating shaft, a scraping plate, and a motor. The scraping plate is arranged on the rotating shaft, and the motor drives the rotating shaft to rotate. The baffle consists of two pieces, each of which is triangular in shape. One side of each of the two baffles is detachably connected to the two mounting members.

13. The algae collecting vessel according to claim 11, characterized in that: The algae collection boat also includes a water filling device, which is arranged at the bottom end of the dehydration tank. The dehydration device also includes a pumping device and a filter. The top of the dehydration tank is open, and the side plate located in front of the water inlet direction is the overflow plate. The filter is circumferentially connected to the side wall of the dehydration tank, and the pumping device is connected to the bottom of the dehydration tank.

14. The algae collecting vessel according to claim 12, characterized in that: The algae collection boat also includes a water filling device, which is arranged at the bottom end of the dehydration tank. The dehydration device also includes a pumping device and a filter. The top of the dehydration tank is open, and the side plate located in front of the water inlet direction is the overflow plate. The filter is circumferentially connected to the side wall of the dehydration tank, and the pumping device is connected to the bottom of the dehydration tank.

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