CN212835306U

CN212835306U - High-efficiency treatment station for water surface floating garbage

Info

Publication number: CN212835306U
Application number: CN202021216279.4U
Authority: CN
Inventors: 陈源; 潘永健; 严天宏; 梁策; 李雨诗; 张熠辉; 吕嘉宁
Original assignee: China Jiliang University; China Jiliang University Shangyu Advanced Research Institute Co Ltd
Current assignee: China Jiliang University; China Jiliang University Shangyu Advanced Research Institute Co Ltd
Priority date: 2020-06-28
Filing date: 2020-06-28
Publication date: 2021-03-30
Anticipated expiration: 2030-06-28

Abstract

The utility model discloses a high-efficiency treatment station for floating garbage on water surface, which comprises a platform, a collecting device, a filtered water compressing device and a collecting and storing tank; the collecting device is arranged on the platform; the collecting device comprises a first chamber and a second chamber; the front end of the first chamber is provided with a first inlet, and a pump port is arranged below the first chamber; a first outlet is arranged behind the first chamber; the first chamber is internally provided with a water filtering part; a second inlet is arranged in front of the second chamber, and a second outlet is arranged below the second chamber; a piston is arranged in the second chamber, slides backwards from the butt joint part, and enables the garbage to flow out of the second outlet through vacuum suction force to enter the water filtration compression device; the water filtration compression device sequentially comprises a centrifugal assembly, a baffle plate assembly, a pressing and pushing assembly and a base from top to bottom; the centrifugal assembly dehydrates the garbage again, and the garbage enters the pressing and pushing assembly through the baffle assembly and then enters the storage tank after the volume of the garbage is reduced through the pressing and pushing assembly. The utility model has the advantages of simple integral structure, ingenious design, convenient operation, low labor intensity and high automation degree.

Description

High-efficiency treatment station for water surface floating garbage

Technical Field

The utility model relates to an aquatic refuse treatment, concretely relates to aquatic refuse treatment station.

Background

With the increase of the range of human activities, a great amount of solid floating garbage and suspended garbage are gathered in rivers, lakes and the like, and the ecological environment of water resources is seriously influenced and destroyed.

The common means at the present stage is to clean up the garbage in the water area environment through manual salvage; however, the current garbage which is manually salvaged is usually solid floating garbage floating on water; for example, in the prior art, CN201620682978.5 depends on a net to drag garbage, and the work efficiency is low; for example, the Chinese patent publication No. CN101550689, the cleaning boat of the application aims at solid floating garbage floating on water, and is difficult to effectively clean the water body suspended garbage suspended in a water area; in addition, in the process of collecting the garbage in the water, the water content of the garbage is often large, the whole garbage is heavy, and the garbage is inconvenient to transfer; therefore in water waste treatment process, the separation of water is mostly needed to be made, otherwise the water content of rubbish is often many, the rubbish is wholly heavier, and inconvenient the transfer.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a high-efficient processing station of surface of water floating garbage can solve one or more among the above-mentioned technical problem.

In order to achieve the above object, the present invention provides the following technical solutions:

an efficient treatment station for water surface floating garbage comprises a platform, a collection device, a water filtration compression device and a collection and storage tank;

the collecting device is arranged on the platform; the collection device comprises a first chamber and a second chamber; the front end of the first chamber is provided with a first inlet, a pump port is arranged below the first chamber, and the pump port is connected with a water pump through a pipeline; a first outlet is arranged behind the first chamber; the first chamber is internally provided with a water filtering part, the first inlet is communicated with the water filtering part, the pump port is positioned outside the water filtering part, and the water filtering part separates the inlet from the pump port;

a second inlet is arranged in front of the second chamber, a second outlet is arranged below the second chamber, and the second inlet is in butt joint with the first outlet; a piston is arranged in the second chamber, the piston slides backwards from the butt joint part, and garbage in the first chamber enters the second chamber from the first outlet through the second inlet and flows out of the second chamber from the second outlet through vacuum suction to enter the water filtration compression device;

the water filtration compression device sequentially comprises a centrifugal assembly, a baffle assembly, a pressing and pushing assembly and a base from top to bottom;

the centrifugal assembly dehydrates the garbage again, and the garbage enters the pressing and pushing assembly through the baffle assembly and then enters the storage tank after the volume of the garbage is reduced through the pressing and pushing assembly.

The utility model comprises a preliminary collecting device, which finishes preliminary water separation in the process of collecting water surface or water garbage (floating body) by a water pump; the collection of rubbish and separation of water are accomplished at same cavity, and the piston is located the department that meets of two cavities, and with first cavity formation sealed when the water pump extraction contains water rubbish, along with rubbish is full of first cavity, piston department forms the vacuum gradually, when the piston retreats, in "taking out" rubbish to the second cavity, from the whereabouts of second export, accomplish the collection. The garbage is continuously sucked, collected and transported through the matching of the piston and the water pump;

the garbage collected in the transferring way falls into the water filtering and compressing device from the second outlet, wherein secondary water separation is realized through the centrifugal assembly, the water content of the garbage is reduced again, and the weight is reduced; then the garbage enters a pressing and pushing assembly with a compressed volume through a baffle assembly, and the garbage is pushed out to enter a collecting and storing groove to uniformly and intensively treat the garbage after the volume is reduced in the pressing and pushing assembly.

The garbage treated by the high-efficiency treatment station for the water surface floating garbage is far smaller than the garbage treatment device in the prior art in weight and volume, and more garbage can be treated in a centralized manner.

The utility model has the advantages of simple integral structure, simple operation maintenance, stable and reliable use.

Further: the centrifugal component comprises a centrifugal cavity, a track, a filter screen (cylindrical filter screen), a centrifugal motor and a belt; the track is fixed in the centrifugal cavity, the filter screen is installed on the track, the centrifugal motor is positioned outside the centrifugal cavity and drives the filter screen to do centrifugal motion on the track and in the centrifugal cavity through the belt, and the side wall of the centrifugal cavity is provided with a water outlet.

The filter screen makes the rubbish inside do centrifugal motion in the rotatory in-process, and further throws away unnecessary moisture, goes out water along the delivery port to moisture.

Further: the baffle plate assembly comprises a first baffle plate, a second baffle plate, a baffle plate motor, a driving connecting rod, a driven connecting rod, a first rotating shaft and a second rotating shaft;

the first baffle rotates by taking the first rotating shaft as an axis, and the second baffle rotates by taking the second rotating shaft as an axis;

one end of the driving connecting rod is provided with a gear, and the other end of the driving connecting rod is arranged on the first baffle through a pin shaft;

one end of the driven connecting rod is provided with a gear, and the other end of the driven connecting rod is arranged on the second baffle through a pin shaft;

the gear of the driving connecting rod is arranged on the main shaft of the baffle motor, the driving connecting rod is meshed with the gear of the driven connecting rod, and the baffle motor rotates to enable the first baffle and the second baffle to be horizontally split.

One motor can push the two baffles horizontally, garbage falls down by gravity in the pushing process, and the baffle assembly is used as the bottom of the centrifugal assembly and is also used as the top of the pressing and pushing assembly, so that the structural complexity is integrally reduced.

Further: the pressing and pushing assembly comprises a pressing and pushing cavity, a compression cylinder, a pressing plate, a pushing cylinder, a pushing plate and a door;

the bottom of the pressure pushing cavity is uncovered, an opening is formed in the side wall of the pressure pushing cavity, a door is hinged to the opening, and the door is an automatic reset door;

the pressing plate pushes and presses the garbage from bottom to top by the compression cylinder to reduce the volume of the garbage;

the push plate is opposite to the door, and the push plate is pushed forwards from the back by the push-out cylinder and pushes the garbage out of the pressing and pushing cavity from the door.

The pressing and pushing actions are completed through the two mutually perpendicular air cylinders, and the pressing and pushing mechanism is simple and reliable.

Further: the push plate is U-shaped, and the U-shaped push plate is internally tangent to the pressure push cavity.

Further: the device also comprises a front water filtering device; it comprises a preposed cavity, a preposed centrifugal blade and a preposed motor. The preposed cavity is provided with a preposed inlet, a preposed outlet and a preposed water outlet, and the preposed inlet is in butt joint with the second outlet; the front outlet is butted with the centrifugal assembly; the preposed water outlet is arranged between the preposed inlet and the preposed outlet; and a net piece is arranged on the front water outlet. The front centrifugal blades are mesh blades and solid blades which are alternately arranged; the front centrifugal blade is arranged in the front cavity and is driven by the front motor to rotate in the front cavity; the centrifugal blades drive the garbage in the centrifugal blades to do centrifugal motion.

Further: the water filter device is characterized by further comprising a transfer device, wherein the transfer device is a roller conveying belt, and the surface formed by the rollers inclines from the water filter compression device to the collecting and storing tank.

Further: the centrifugal cavity is provided with a vibrator. In order to avoid that the garbage is tightly attached to the filter screen cylinder and can not fall down by gravity, a vibrator which is matched with the filter screen cylinder is arranged in the middle of the device to help the garbage to smoothly fall into the next link.

Further: the platform is a floating body which can move or be fixed on the water. Such as a mobile vessel, or an above-water platform.

Further: one side of the platform is provided with a storage tank, the other side of the storage tank is provided with a pore plate, an inclined plane is arranged below the pore plate, a containing cavity is formed between the pore plate and the inclined plane, and the containing cavity is communicated with the storage tank.

Further: the water filtering part is a hollow column, two ends of the hollow column are provided with positioning rings protruding out of the surface of the hollow column, and the positioning rings enable a gap to be reserved between the hollow column and the inner wall of the first cavity; when the hollow column is arranged in the first cavity, at least one third of the area of the hollow column is fully distributed with meshes.

Further: the first inlet is spirally connected with a water pipe.

Further: the water pipe is provided with a horn-shaped water inlet.

Further: and a hopper-shaped opening is connected below the second outlet.

Further: the piston is driven by the cylinder to slide in the second chamber.

Further: the piston is a bowl-shaped rubber head, and the bowl-shaped opening is opposite to the first outlet.

Further: the water pump is a pneumatic diaphragm pump.

The technical effects of the utility model are that:

the utility model can separate the water in the garbage and reduce the weight of the garbage during the garbage cleaning process; meanwhile, the volume of the garbage is compressed, so that the collection amount of the garbage can be increased; can simultaneously clear away the water surface or the water body suspended garbage.

The automatic feeding device has the advantages of simple overall structure, ingenious conception, convenient operation, low labor intensity and high automation degree.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.

In the drawings:

fig. 1 is a schematic diagram of the general structure of the present invention;

fig. 2 is a schematic diagram of the overall structure of the present invention;

FIG. 3 is a schematic view of the structure of the collecting device;

FIG. 4 is a partial sectional view of FIG. 3 (with the water pump and water pipe partially omitted);

FIG. 5 is a first schematic illustration of the explosive structure of FIG. 3;

FIG. 6 is a schematic exploded view, partially in section, of FIG. 5;

FIG. 7 is a second schematic illustration of the exploded structure of FIG. 3;

FIG. 8 is a schematic view of another structure of the water filtering part;

FIG. 9 is a schematic structural view of a pre-water filtering device;

FIG. 10 is a first schematic illustration of the explosive structure of FIG. 9;

FIG. 11 is a second schematic illustration of the exploded structure of FIG. 9;

fig. 12 is a schematic illustration of a non-explosive construction of a water filtration compression device;

FIG. 13 is a schematic diagram of the centrifuge assembly configuration;

FIG. 14 is a schematic structural view of a baffle assembly;

FIG. 15 is a schematic view of the push assembly;

FIG. 16 is a schematic structural view of a platform;

FIG. 17 is a cross-sectional structural view of the platform;

wherein the figures include the following reference numerals:

a first chamber 1, a first inlet 101, a water pipe 102, a water inlet 103, a pump opening 104, a water pump 105, a first outlet 106, a water filtering part 107, a positioning ring 1071 and a mesh 1072;

a second chamber 2, a second inlet 201, a second outlet 202, a piston 203, a cylinder 204, a bucket-shaped opening 205; the centrifugal assembly 3, a centrifugal cavity 301, a track 302, a filter screen 303, a centrifugal motor 304, a belt 305 and a vibrator 306;

the baffle assembly 4 comprises a first baffle 401, a second baffle 402, a baffle motor 403, a driving connecting rod 404, a driven connecting rod 405, a first rotating shaft 406 and a second rotating shaft 407;

the pressing and pushing assembly 5 comprises a pressing and pushing cavity 501, a compression air cylinder 502, a pressing plate 503, a pushing air cylinder 504, a pushing plate 505 and a door 506;

the device comprises a front water filtering device 6, a front cavity 601, a front centrifugal blade 602 and a front motor 603; a front inlet 6011, a front outlet 6012, a front water outlet 6013, a mesh surface blade 6021, a solid blade 6022 and a mesh sheet 604; a transfer device 7;

a platform 8, a collecting and storing groove 801, a pore plate 802 and an inclined plane 803; a base 9.

Detailed Description

The invention will be described in detail with reference to the drawings and specific embodiments, wherein the exemplary embodiments and the description are only intended to explain the invention, but not to limit the invention in a proper manner.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

As shown in fig. 1-17, a high-efficiency treatment station for garbage floating on water surface comprises a platform 8, a collecting device, a water filtering and compressing device and a collecting and storing tank;

the collecting device is arranged on the platform; in order to be able to clean a large area of water or underwater waste, a vessel is used as a movable platform.

As shown in fig. 16 and 17, a reservoir 801 is disposed on one side of the platform 8, a hole plate 802 is disposed on the other side of the reservoir, an inclined surface 803 is disposed below the hole plate, and a receiving cavity is formed between the hole plate and the inclined surface and is communicated with the reservoir.

The hull bottom plate is netted, avoids the emergence of phenomenons such as hull corrosion because of hull ponding leads to, and D board department leaves the space simultaneously, makes the unexpected water that spills in the work flow garbage collection department along the slope, convenient clearance and dry hull.

As shown in fig. 3-8. The collecting device comprises a first chamber 1 and a second chamber 2; comprises a first chamber 1, wherein a first inlet 101 is arranged at the front end of the first chamber, and the first inlet is spirally connected with a water pipe 102. The water pipe 102 has a trumpet-shaped water inlet 103.

A pump opening 104 is arranged below the first chamber, and the pump opening 104 is connected with a water pump 105 through a pipeline; the water pump 105 is a pneumatic double diaphragm pump.

A first outlet 106 is arranged behind the first chamber 1; the water filtering part 107 is arranged in the first cavity, the water filtering part is a hollow column, two ends of the hollow column are provided with positioning rings 1071 protruding out of the surface of the hollow column, and a gap is formed between the hollow column and the inner wall of the first cavity by the positioning rings 1071; the hollow columns, when installed in the first chamber, are at least the lower third full of mesh 1072.

The first inlet is communicated with the water filtering part (here, the inside of the hollow column), the pump port is positioned outside the water filtering part (outside the hollow column), and the water filtering part separates the inlet from the pump port; when water-containing garbage enters the hollow column, water enters the pump opening through the meshes, so that the garbage is separated from the water, and meanwhile, the garbage is prevented from entering the pump body to damage the pump body; therefore, the garbage and water are separated while the water is pumped by the water pump.

A second inlet 201 is arranged in front of the second chamber, a second outlet 202 is arranged below the second chamber, and the second inlet is in butt joint with the first outlet; the second chamber houses a piston 203, which is a bowl-shaped rubber head, with the bowl-shaped opening opposite the first outlet.

The piston is driven by the cylinder 204 to slide in the second chamber; the piston slides backwards from the butt joint, and the garbage in the first chamber enters the second chamber from the first outlet 106 through the second inlet and flows out of the second chamber 2 from the second outlet into the filtered water compressing device through the vacuum suction force. A bucket-shaped opening 205 is connected below the second outlet 202.

The movement of the piston realizes that the garbage enters the second chamber from the first chamber and then falls to the collection box (or other garbage centralized processing device) by gravity; the whole structure operates stably and reliably.

The device has simple structure, ingenious design and stable operation, and can be installed at will according to the use requirement.

The water filtering and compressing device sequentially comprises a centrifugal assembly 3, a baffle assembly 4, a pressing and pushing assembly 5 and a base 9 from top to bottom as shown in fig. 12.

As shown in fig. 13, the centrifugal assembly 3 includes a centrifugal chamber 301, a track 302, a screen 303, a centrifugal motor 304, and a belt 305; the track is fixed in the centrifugal cavity, the filter screen is installed on the track, the centrifugal motor is positioned outside the centrifugal cavity and drives the filter screen to do centrifugal motion on the track and in the centrifugal cavity through the belt, and the side wall of the centrifugal cavity is provided with a water outlet. The centrifugal chamber is equipped with a vibrator 306.

The centrifugal cavity is matched with the belt to form a first groove, and the centrifugal cavity is matched with the track to form a second groove; the centrifugal cavity rotates on the track 302 (balls are arranged between the track and the centrifugal cavity, and the balls are equivalent to ball bearings), and the rotation is smooth and reliable.

In order to avoid that the garbage is tightly attached to the spin-drying barrel and can not fall down by gravity, a vibrator matched with the device is arranged in the middle of the device.

As shown in fig. 14, the baffle plate assembly 4 includes a first baffle plate 401, a second baffle plate 402, a baffle plate motor 403, a driving link 404, a driven link 405, a first rotating shaft 406, and a second rotating shaft 407; the first baffle rotates by taking the first rotating shaft as an axis, and the second baffle rotates by taking the second rotating shaft as an axis; one end of the driving connecting rod is provided with a gear, and the other end of the driving connecting rod is arranged on the first baffle through a pin shaft; one end of the driven connecting rod is provided with a gear, and the other end of the driven connecting rod is arranged on the second baffle through a pin shaft; the gear of the driving connecting rod is arranged on the main shaft of the baffle motor, the driving connecting rod is meshed with the gear of the driven connecting rod, and the baffle motor rotates to enable the first baffle and the second baffle to be horizontally split.

Several pieces of baffle components are opened, the garbage centrifugal cavity falls, the baffle component has a simple structure, and the baffle component is opened rapidly and in place through the effective guarantee of the gears meshed with each other.

As shown in fig. 15, the pushing assembly 5 includes a pushing cavity 501, a compression cylinder 502, a pressing plate 503, a pushing cylinder 504, a pushing plate 505, and a door 506.

The pressing and pushing cavity 501 is provided with a bottom and no cover, an opening is arranged on the side wall of the pressing and pushing cavity, a door 506 is hinged at the opening, and the door is an automatic reset door (for example, a torsion spring is arranged at the shaft cavity, and the structure is common in the field, and is not described in detail); the pressing plate pushes and presses the garbage from bottom to top by the compression cylinder to reduce the volume of the garbage; the push plate 505 is opposite to the door 506, and the push plate 505 pushes the garbage from the door 506 out of the push chamber 501 from back to front by the push-out cylinder 504.

Further: the push plate 505 is U-shaped, and the U-shaped push plate is internally tangent to the push chamber 501. Therefore, the push plate 505 can push out all the garbage in the push cavity completely, and the garbage is prevented from being stuck to the wall of the push cavity.

As also shown in fig. 9-11, a pre-filter 6 is also included; it comprises a front chamber 601, a front centrifugal blade 602, a front motor 603.

A front inlet 6011, a front outlet 6012 and a front water outlet 6013 are arranged on the front chamber 601, and the front inlet is in butt joint with the second outlet; the front outlet is butted with the centrifugal assembly; the preposed water outlet is arranged between the preposed inlet and the preposed outlet; a net sheet is arranged on the preposed water outlet; the front centrifugal blades are mesh surface blades 6021 and solid blades 6022 which are arranged alternately; the front centrifugal blade is arranged in the front cavity and is driven by the front motor to rotate in the front cavity; the centrifugal blades drive the garbage in the centrifugal blades to do centrifugal motion.

The added preposed water filtering cavity can remove part of water when garbage enters the centrifugal assembly for water filtering. In the device, centrifugal water filtration is performed by rotating the blades, the width of the blades is the same as the thickness of the front cavity so as to ensure tangency, and the edges of the blades are tangent to the side wall of the front cavity; rubbish is in between two adjacent blades all the time at rotatory in-process, and wherein the blade is that wire side blade and entity blade set up in turn, guarantees that the play water of rubbish flows through the wire side blade all the time among the centrifugal process, guarantees the directionality of dewatering.

In order to avoid that garbage enters the front water outlet and falls into a drainage pipeline, a net piece is arranged on the front water outlet 6013, and the garbage can be thrown out of the front outlet 6012.

Further: the device also comprises a transfer device 7 which is a roller conveyor belt, and the surface formed by the rollers inclines from the water filtration compression device to the collecting and storing tank.

In order to improve the whole operation space, a roller conveyor belt is added to improve the garbage transferring efficiency and save manpower.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a high-efficient processing station of surface of water floating garbage which characterized in that: comprises a platform, a collecting device, a water filtering and compressing device and a collecting and storing tank;

the collecting device is arranged on the platform;

the collection device comprises a first chamber and a second chamber; the front end of the first chamber is provided with a first inlet, a pump port is arranged below the first chamber, and the pump port is connected with a water pump through a pipeline; a first outlet is arranged behind the first chamber; the first chamber is internally provided with a water filtering part, the first inlet is communicated with the water filtering part, the pump port is positioned outside the water filtering part, and the water filtering part separates the inlet from the pump port;

2. The high efficiency processing station of water floating garbage according to claim 1, wherein: the centrifugal component comprises a centrifugal cavity, a track, a filter screen, a centrifugal motor and a belt; the track is fixed in the centrifugal cavity, the filter screen is installed on the track, the centrifugal motor is positioned outside the centrifugal cavity and drives the filter screen to do centrifugal motion on the track and in the centrifugal cavity through the belt, and the side wall of the centrifugal cavity is provided with a water outlet.

3. The high efficiency processing station of water floating garbage according to claim 1, wherein: the baffle plate assembly comprises a first baffle plate, a second baffle plate, a baffle plate motor, a driving connecting rod, a driven connecting rod, a first rotating shaft and a second rotating shaft;

4. The high efficiency processing station of water floating garbage according to claim 1, wherein: the pressing and pushing assembly comprises a pressing and pushing cavity, a compression cylinder, a pressing plate, a pushing cylinder, a pushing plate and a door;

5. The high efficiency processing station of water surface floating garbage according to claim 4, characterized in that: the push plate is U-shaped, and the U-shaped push plate is internally tangent to the pressure push cavity.

6. The high efficiency processing station of water floating garbage according to claim 1, wherein: the device also comprises a front water filtering device; it comprises a preposed cavity, a preposed centrifugal blade and a preposed motor;

the preposed cavity is provided with a preposed inlet, a preposed outlet and a preposed water outlet, and the preposed inlet is in butt joint with the second outlet; the front outlet is butted with the centrifugal assembly; the preposed water outlet is arranged between the preposed inlet and the preposed outlet; a net sheet is arranged on the preposed water outlet;

the front centrifugal blades are mesh blades and solid blades which are alternately arranged; the front centrifugal blade is arranged in the front cavity and is driven by the front motor to rotate in the front cavity; the centrifugal blades drive the garbage in the centrifugal blades to do centrifugal motion.

7. The high efficiency processing station of water floating garbage according to claim 1, wherein: the water filter device is characterized by further comprising a transfer device, wherein the transfer device is a roller conveying belt, and the surface formed by the rollers inclines from the water filter compression device to the collecting and storing tank.

8. The high efficiency processing station of water floating garbage according to claim 2, wherein: the centrifugal cavity is provided with a vibrator.

9. The high efficiency processing station of water floating garbage according to claim 1, wherein: the platform is a floating body which can move or be fixed on the water.

10. The high efficiency processing station of water floating garbage according to claim 1, wherein: one side of the platform is provided with a storage tank, the other side of the storage tank is provided with a pore plate, an inclined plane is arranged below the pore plate, a containing cavity is formed between the pore plate and the inclined plane, and the containing cavity is communicated with the storage tank.