WO2022267698A2

WO2022267698A2 - Multifunctional device for water body landscape

Info

Publication number: WO2022267698A2
Application number: PCT/CN2022/090545
Authority: WO
Inventors: Long Yang
Original assignee: China Urban Construction Design & Research Institute Co., Ltd.
Priority date: 2022-04-19
Filing date: 2022-04-29
Publication date: 2022-12-29
Also published as: WO2022267698A3; CN114702206B; ZA202204771B; CN114702206A

Abstract

The present disclosure provides a multifunctional device for water body landscape, and belongs to the technical field of environmental protection. The device includes a hull provided with a purification mechanism, transmission mechanisms, and a landscape mechanism; and the purification mechanism includes purification reaction tanks internally provided with an impeller, a water pump and a filler. Water holes are formed in a side wall of the purification reaction tanks. Ultrasonic emission rods and an ultrasonic generator are disposed outside the purification reaction tanks. The ultrasonic generator is electrically connected with the ultrasonic emission rods. The ultrasonic generator and the water pump are electrically connected with a controller. A storage battery is configured to provide a power source for the ultrasonic generator, the water pump and the controller. The device is mainly configured to purify urban landscape water, and may achieve multiple functions such as water purification, landscapes, and recreations.

Description

MULTIFUNCTIONAL DEVICE FOR WATER BODY LANDSCAPE

TECHNICAL FIELD

The present disclosure belongs to the technical field of environmental protection and urban ecological landscape construction, and particularly relates to a multifunctional device for water body landscape.

BACKGROUND

Urban water body landscape is an important part of human settlements. Urban water body landscape is mostly closed and stagnant, with unsmooth water circulation, low self-purification capacity, high total nitrogen and total phosphorus concentrations, and poor transparency. In severe cases, it will cause eutrophication of water, and the water will turn black and smelly, resulting in loss of its ecological function and landscape value, and affecting the quality of the ecological environment and the living environment of residents.

Water purification of urban water body landscape mainly includes physical purification, chemical purification and biological purification. The physical purification mainly includes treatment technologies such as sediment dredging, water system communication, and mechanical algae removal. Such technologies are environmentally friendly, but may not remove water pollutants from the source. The chemical purification is to reduce the concentrations of suspended solids, colloidal impurities, algae, and nutrients in the water by adding chemicals to increase the transparency of the water body landscape, improve the quality and landscape effect of the water, and prevent eutrophication of the water. This kind of technology is effective quickly, but it is easy to produce secondary pollution. The biological purification is to screen dominant strains suitable for environmental characteristics of the water body landscape, and breed, cultivate, domesticate and synthesize microbial agents with special degradation functions, so as to absorb and degrade organic pollutants and improve water quality. However, there are certain ecological risks. Or plankton that feed on algae is stocked for self-purification in the water body landscape, but an effect is not good.

A facility that combines a landscape function with a purification function and is disposed in water may play both the purification function and the landscape function, and has increasingly become a direction of research and development of a technology for treating urban water body landscape. Existing devices and technologies for purifying urban water body landscape generally have single functions, such as sediment dredging, mechanical algae removal, and water aeration, which are only simple mechanical removal of pollutants, lacking landscape effects or recreation effects. Although some facilities also combine other functions, such as aeration of landscape fountains, their effect of removing pollutants is very limited, and a lot of energy is consumed. The use of ultrasonic waves may break cell walls and air cells of biological algae, destroy biologically active enzymes, and make them inactivated to die, so as to remove the algae. However, after death of the algae, nitrogen, phosphorus and other nutrients will be released into water again to provide nutrients for other new microorganisms, resulting in eutrophication and algal blooms of the water again. Therefore, fundamental treatment may not be achieved. In addition, mechanical equipment mostly uses non-renewable energy as power, causing high energy consumption and increase of social carbon emissions.

SUMMARY

The present disclosure provides a multifunctional device for efficiently purifying water, which achieves multiple functions such as water purification, landscapes and recreations, solves the problems of single function, lack of comprehensive treatment, high energy consumption and poor treatment effect in technology for purifying urban water body landscape .

The present disclosure provides a multifunctional device for water body landscape, including a hull, wherein the hull is provided with a purification mechanism, a transmission mechanism, and a landscape mechanism;

the purification mechanism, including a purification reaction tank, wherein the purification reaction tank is internally provided with an impeller, a water pump, and a filler, one or more water holes are formed in a side wall of each of the purification reaction tanks, ultrasonic emission rods and an ultrasonic generator are disposed outside the purification reaction tanks, the ultrasonic generator is electrically connected with the ultrasonic emission rods, the ultrasonic generator and the water pump are electrically connected with a controller, and a storage battery is configured to provide a power source for the ultrasonic generator, the water pump and the controller;

the transmission mechanism is configured to make pedals rotate the impeller under the action of people; and

the landscape mechanism, including a dragon head disposed on a head of the hull, wherein the dragon head is provided with a water spray hole, a rotating ball is disposed at the water spray hole, and the water spray hole communicates with the water pump through pipelines; and a solar roof is disposed above the hull, support rods are disposed between the solar roof and the hull, and the solar roof is electrically connected with the storage battery.

Further, the bottom of the hull is provided with a concave structure, and the purification reaction tanks, the ultrasonic emission rods and the ultrasonic generator are hung at the concave structure.

Further, each of the transmission mechanisms includes a power assembly and a force transmission assembly;

the power assembly includes a power transmission shaft and a power transmission bevel gear, the power transmission shaft is of an S-shaped structure and passes through the center of the power transmission bevel gear, and two ends of the power transmission shaft are provided with the pedals; and

the force transmission assembly includes two transmission shaft bevel gears, a transmission shaft, a drive shaft bevel gear, and a drive shaft, the centers of the two transmission shaft bevel gears are connected by the transmission shaft, one of the transmission shaft bevel gears is butted with the power transmission bevel gear, the other of the transmission shaft bevel gears is butted with the drive shaft bevel gear, and the drive shaft bevel gear is connected with the impeller through the drive shaft.

Further, the filler is the light weight ceramsite, and the light weight ceramsite is prepared from the following raw materials in parts by weight: 1-2 parts of calcium peroxide particles, 2-3 parts of plastic clay, 4-8 parts of sawdust and 2-3 parts of iron powder.

Further, the light weight ceramsite has a particle size of 6-10 mm.

Further, the hull is internally provided with seats.

The present disclosure has the following advantages:

The multifunctional device for the water body landscape provided by the present disclosure comprehensively adopts a combined action of aeration, fillers, ultrasonic waves, etc., to remove the microbial algae in the water, and reduce the concentration of nitrogen and phosphorus pollutants, so as to comprehensively treat the urban water body landscape. Meanwhile, solar energy and labors are used as power sources, so as to achieve low carbon, save energy and reduce costs. In addition, the purification function, the landscape function and the recreation function are organically combined, thereby producing good social and economic effects while purifying the urban water body landscape. Furthermore, no chemicals are used in a treatment process, so that there are no water pollution and no secondary pollution. The device is non-toxic, harmless, convenient to operate and maintain, and low in operating cost. The technology is environmentally friendly, and is convenient to apply and popularize.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings constituting a part of the present disclosure are used to provide a further understanding of the present disclosure. The schematic embodiments of the present disclosure and the descriptions thereof are used to explain the present disclosure and do not constitute an improper limitation to the present disclosure. In the accompanying drawings:

FIG. 1 is a schematic structural diagram of a multifunctional device for water body landscape according to an embodiment of the present disclosure;

FIG. 2 is a schematic structural diagram of a transmission mechanism according to an embodiment of the present disclosure; and

FIG. 3 is an effect diagram of the device according to an embodiment of the present disclosure.

Drawing symbols are as follows:

1-hull;

2-purification mechanism, 21-purification reaction tank, 22-ultrasonic emission rod, 23-impeller, 24-water pump, 25-ultrasonic generator, 26-controller, and 27-storage battery;

3-transmission mechanism, 31-power assembly, 32-force transmission assembly, 311-power transmission shaft, 312-power transmission bevel gear, 333-pedal, 3211, 3212-transmission shaft bevel gear, 322-transmission shaft, 323-drive shaft bevel gear, and 324-drive shaft; and

4-landscape mechanism, 41-dragon head, 42-water spray hole, 43-rotating ball, and 44-solar roof.

DETAILED DESCRIPTION OF THE EMBODIMENTS

The technical solution in the embodiments of the present disclosure will be clearly and completely described below with reference to the embodiments of the present disclosure. Apparently, the described embodiments are merely a part, rather than all of the embodiments of the present disclosure. The embodiments in the present disclosure and the features in the embodiments may be combined with each other without conflict.

As shown in Fig. 1, an embodiment of the present disclosure provides a multifunctional device for water body landscape, including one hull 1, wherein the hull 1 is provided with one purification mechanism 2, transmission mechanisms 3, and one landscape mechanism 4;

the purification mechanism 2, including purification reaction tanks 21, wherein each of the purification reaction tanks 21 is internally provided with one impeller 23, one water pump 24 and fillers, water holes are formed in a side wall of the purification reaction tanks 21, ultrasonic emission rods 22 and one ultrasonic generator 25 are disposed outside the purification reaction tanks 21, the ultrasonic generator 25 is electrically connected with the ultrasonic emission rods 22, the ultrasonic generator 25 and the water pumps 24 are electrically connected with one controller 26, and one storage battery 27 is configured to provide a power source for the ultrasonic generator 25, the water pumps 24 and the controller 26;

the transmission mechanism 3, configured to make pedals 333 drive the impellers 23 to rotate under the action of people; and

the landscape mechanism 4, including one dragon head 41 disposed on a head of the hull 1, wherein the dragon head 41 is provided with one water spray hole 42, one rotating ball 43 is disposed at the water spray hole 42, and the water spray hole 42 communicates with the water pumps 24 through pipelines; and one solar roof 44 is disposed above the hull 1, support rods are disposed between the solar roof 44 and the hull 1, and the solar roof 44 is electrically connected with the storage battery 27.

In the embodiment of the present disclosure, the purification mechanism is mainly configured to purify nitrogen, phosphorus and other pollutants in the water and reduce the density of algae. Firstly, by means of ultrasonic waves generated by the ultrasonic emission rods, cell walls of planktonic algae are broken, and the biological enzyme activity is destroyed to make the algae die, remove the algae from the water and release the nitrogen, phosphorus and other pollutants, thereby facilitating further purification. Secondly, for new light weight ceramsite as the fillers in the purification reaction tanks, metal ions (calcium ions, iron ions) on the surface of the ceramsite may react with phosphorus substances released by death of bloomed algal cells and free phosphorus substances in the water to form sediments, so as to remove the phosphorus in the water; and, under the action of stirring and collision of the impellers, the sediments will sink to the bottom of the water, so that the ceramsite may absorb more nitrogen and phosphorus pollutants again to further improve the nitrogen and phosphorus removal capacity. In addition, intermittent aeration generated by water pumping by the water pumps and stirring by the impellers creates an aerobic, anoxic, and anaerobic environment to promote the nitrification and denitrification of nitrogen in the water and remove the nitrogen, thereby reducing the nitrogen and phosphorus nutrient salt concentration and algae density in the water as a whole.

The purification reaction tank/tanks 21 is/are square or cuboid-shaped. The specific shape may be determined according to the needs. The purification reaction tanks are connected with the hull by a buckle or buckles. Each of the water holes in the side wall of the purification reaction tanks has a diameter of 2-5 mm, and is used as water inlet and outlet of the purification reaction tank. Each of the purification reaction tanks is provided with an opening and closing door. Specifically, an opening and closing door is disposed on the side wall of each of the purification reaction tanks, and many water holes are formed in the remaining positions of the side wall and used for water inlet and outlet.

Further, the bottom of the hull 1 is provided with a concave part, and the purification reaction tanks 21, the ultrasonic emission rods 22 and the ultrasonic generator 25 are hung at the concave part/parts. With this arrangement, the purification reaction tanks 21 are disposed in the water body, which is more conducive to purifying the water.

Preferably, the filler is a light weight ceramsite, and the light weight ceramsite is prepared from the following raw materials in parts by weight: 1-2 parts of calcium peroxide particles, 2-3 parts of plastic clay, 4-8 parts of sawdust, and 2-3 parts of iron powder. A preparation method of the light weight ceramsite includes the steps of mixing, ball-forming and high-temperature roasting of each component. The components are combined to make the light weight ceramsite fully play a role in the purification reaction tanks to purify the nitrogen, phosphorus and other pollutants in the water.

More preferably, the light weight ceramsite has a particle size of 6-10 mm. For example, the light weight ceramsite may have a particle size of 6 mm, 7 mm, 8 mm, 9 mm, 10mm. The particle size of the light weight ceramsite is more conducive to the interaction with the impellers. Under the agitation of the impellers, iron phosphate, calcium carbonate, calcium phosphate and other sediments generated on the surface of the ceramsite as the fillers and the attached algae collide and fall off. As a result, the light weight ceramsite may absorb more nitrogen and phosphorus pollutants again to improve the nitrogen and phosphorus removal capacity, and meanwhile, it may help to break the cell walls of the algae to promote algae prevention and algae removal.

Further, the ultrasonic generator 25 and the water pumps 24 are electrically connected with the controller 26, the controller controls the ultrasonic generator 25 and the water pumps 24 to work, and the storage battery 27 is configured to provide the power source for the ultrasonic generator 25, the water pumps 24 and the controller 26. The ultrasonic generator is electrically connected with the ultrasonic emission rods. Specifically, the ultrasonic generator is hung at the bottom of the hull, and is connected with the ultrasonic emission rods by electric wires. In the embodiment of the present disclosure, powerful shock waves, jets, radiation pressure, etc. as well as high temperature and pressure and a large number of free radicals generated at the moment of collapse of ultrasonic "cavitation bubbles" are used to break air cells and cell walls of algal cells and destroy active enzymes and active substances in the algal cells, thereby affecting the physiological and biochemical activities of the cells, causing the death of the algal cells that produce algal blooms of the water, and removing the algae from the urban water body landscape.

In the embodiment of the present disclosure, each of the transmission mechanisms 3 includes a power assembly and a force transmission assembly. Mainly by the transmission mechanisms, the pedals 333 may drive the impellers 23 to rotate, so that on the premise of saving energy, the impellers may be rotated, and the effect of purifying the pollutants by the fillers is improved.

Specifically, as shown in Fig. 2, each of the transmission mechanisms 3 includes one power assembly 31 and one force transmission assembly 32;

the power assembly 31 includes one power transmission shaft 311 and one power transmission bevel gear 312, the power transmission shaft 311 is of an S-shaped structure and passes through the center of the power transmission bevel gear 312, and two ends of the power transmission shaft 311 are provided with the pedals 333; and

the force transmission assembly 32 includes two transmission

shaft bevel gears

3211, 3212, one transmission shaft 322, one drive shaft bevel gear 323, and one drive shaft 324, there are two transmission

shaft bevel gears

3211, 3212, the centers of the two transmission

shaft bevel gears

3211, 3212 are connected by the transmission shaft 322, one of the transmission shaft bevel gears 3211 is butted with the power transmission bevel gear 312, the other transmission shaft bevel gear 3212 is butted with the drive shaft bevel gear 323, and the drive shaft bevel gear 323 is connected with the corresponding impeller 23 through the drive shaft 324.

There are at least one set of the power assembly and the power transmission assembly. There can also have two or more sets of the power assembly and the power transmission assembly, with a same connection mode, that may be determined according to the size of the hull. The transmission mechanisms 3 are disposed in the hull, and the drive shafts 324 are connected with the impellers 23.

In the landscape mechanism according to the embodiment of the present disclosure, the water pumps pump the water upwards and spray the water through the water spray hole 42 in the dragon head to form a landscape fountain; and meanwhile, the rotating ball at the water spray hole 42 may rotate under the action of a sprayed water flow, thereby improving the landscape effect. In addition, intermittent aeration generated by the fountain also creates an aerobic, anoxic, and anaerobic environment, so as to promote the nitrification and denitrification of the nitrogen in the water, remove the nitrogen, reduce the concentration of the nitrogen in the urban water body landscape, and promote the reaction of the metal ions in the fillers with phosphate ions in the water as well as the decomposition of other organic matter. It may be seen that the device provided by the present disclosure successfully organically combines the water purification function with the landscape function and the recreation function, and plays multiple functions.

Further, the hull 1 is internally provided with seats 45. The support rods between the solar roof 44 and the hull 1 are hollow vertical support rods.

The solar roof and the storage battery disposed in the embodiment of the present disclosure convert solar energy into kinetic energy required for the ultrasonic waves, the aeration and the landscape fountain, so as to achieve the utilization of clean energy. The transmission mechanisms and the pedals disposed in the embodiment of the present disclosure provide the kinetic energy for the movement of the device and the rotation of the impellers manually, thereby reducing social carbon emissions and operating cost of the device.

A specific implementation process of the device provided by the present disclosure includes the following steps:

(1) opening the purification reaction tanks 21, putting into the fillers, and closing the purification reaction tanks;

(2) placing the device in the sun, and fully charging the storage battery 27 for later use;

(3) placing the device in the water, and starting the controller 26 to control the water pumps 24 and the ultrasonic generator 25 to start working; and

(4) operating the pedals 333 by tourists after they take their seats to make the device start moving on the water surface. While playing, the water enters the purification reaction tanks 21 through the water holes, and flows out from the water holes and the water spray hole 42 of the dragon head after being treated with the fillers, so as to achieve large-area continuous purification treatment of the water at different locations.

The present disclosure will be described in detail below with reference to the embodiments.

Embodiment 1 A multifunctional device for water body landscape

including a hull 1, wherein the hull 1 is provided with one purification mechanism 2, two more transmission mechanisms 3, and one landscape mechanism 4;

the purification mechanism 2, including purification reaction tanks 21, wherein each of the purification reaction tanks 21 is internally provided with one impeller 23, one water pump 24, and fillers (the light weight ceramsite) , water holes are formed in a side wall of each of the purification reaction tanks 21, ultrasonic emission rods 22 and one ultrasonic generator 25 are disposed outside the purification reaction tanks 21, the ultrasonic generator 25 is electrically connected with the ultrasonic emission rods 22, the ultrasonic generator 25 and the water pumps 24 are electrically connected with one controller 26, and one storage battery 27 is configured to provide a power source for the ultrasonic generator 25, the water pumps 24 and the controller 26;

the transmission mechanisms 3, each including one power assembly and one force transmission assembly, wherein

the power assembly 31 includes one power transmission shaft 311 and one power transmission bevel gear 312, the power transmission shaft 311 is of an S-shaped structure and passes through the center of the power transmission bevel gear 312, and two ends of the power transmission shaft 311 are provided with pedals 333; and

the force transmission assembly 32 includes two transmission

shaft bevel gears

3211, 3212, one transmission shaft 322, one drive shaft bevel gear 323, and one drive shaft 324, the centers of the two transmission

shaft bevel gears

3211, 3212 are connected by the transmission shaft 322, one of the transmission shaft bevel gears 3211 is butted with the power transmission bevel gear 312, the other transmission shaft bevel gears 3212 is butted with the drive shaft bevel gear 323, and the drive shaft bevel gear 323 is connected with the impellers 23 through the corresponding drive shaft 324; and

The light weight ceramsite is prepared from calcium peroxide particles, plastic clay, sawdust, and iron powder in a ratio of 2: 2: 4: 2 through mixing, ball-forming, and high-temperature roasting, and has a particle size of 8 mm.

Test Example 1

A simulation experiment is set. A purification effect of water under the action of the above purification reaction tanks as well as the fillers, the impellers, etc., therein is tested, so as to reflect a treatment effect of the device.

4 groups of test experiments, namely, an experimental group 1, a control group 1, a control group 2, a control group 3, and a control group 4 are set. Each of the groups of experiments is provided with a test pool, a purification reaction tank, an ultrasonic generator, and an ultrasonic emission rod. The test pool is in the shape of a 2 m ³ square, and the purification reaction tank is in the shape of a 1 m ³ square. The purification reaction tank is hung in the test pool. The purification reaction tank is internally provided with an impeller and a filler. A controller is disposed outside the test pool and configured to control the ultrasonic generator and a water pump to work. A motor is disposed outside the test pool and configured to drive the impeller to rotate.

In the experimental group 1, the filler in the purification reaction tank is light weight ceramsite, which is prepared from calcium peroxide particles, plastic clay, sawdust, and iron powder in a ratio of 2: 2: 4: 2 through mixing, ball-forming, and high-temperature roasting, and has a particle size of 8 mm.

In the control group 1, the filler in the purification reaction tank is light weight ceramsite, which is prepared from calcium peroxide particles, plastic clay, and iron powder in a ratio of 2: 2: 2 through mixing, ball-forming, and high-temperature roasting, and has a particle size of 8 mm.

In the control group 2, the filler in the purification reaction tank is light weight ceramsite, which is prepared from calcium peroxide particles, plastic clay, and sawdust in a ratio of 2: 2: 4 through mixing, ball-forming, and high-temperature roasting, and has a particle size of 8 mm.

In the control group 3, the purification reaction tank is internally provided with the impellers that does not work.

In the control group 4, the filler in the purification reaction tank is light weight ceramsite, which is prepared from calcium peroxide particles, plastic clay, sawdust, and iron powder in a ratio of 2: 2: 4: 2 through mixing, ball-forming, and high-temperature roasting, and has a particle size of 20 mm.

Each of the test pools is poured with 500 L of prepared water. The initial concentrations of TP and PO ₄ ³-P in the prepared water are 0.95 mg/L and 0.78 mg/L respectively, and the concentration of chlorophyll a (Chl. a) is 33 μg/L. After operating for 72 hours, a stirring frequency of the impeller is to stop for 3 hours every 3 hours, and a rotational speed during the stirring is 30 r/min; and the ultrasonic working time is 1 hour from the beginning of the experiment. After 72 hours, the removal rates of TP, PO ₄ ³-P and Chl. a are tested, and results are shown in FIG. 3.

It may be seen from FIG. 3 that the removal rates of TP, PO ₄ ³-P and Chl. a in the experimental group 1 are highest. In the control group 1, the lack of sawdust affects the quality of the ceramsite, thereby affecting the activity in the water and reducing the removal rate of pollutants. In the control group 2, the lack of iron powder in the ceramsite, that is, the lack of iron ions required for a reaction with phosphate in the water, affects the removal rate of pollutants. In the control group 3, the content of dissolved oxygen in the water and the desorption of pollutants on the surface of the ceramsite are reduced without stirring the ceramsite, thereby affecting the removal of the pollutants. In the control group 4, the particle size of the ceramsite is large, the number of the ceramsite per unit volume decreases, and the total specific surface area also decreases accordingly, thereby affecting the removal of pollutants.

The above are merely the preferred embodiments of the present disclosure, and are not intended to limit the present disclosure. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present disclosure shall fall in the scope of protection of the present disclosure.

Claims

A multifunctional device for water body landscape, wherein, comprising a hull (1) providing with a purification mechanism (2) , a transmission mechanism (3) , and a landscape mechanism (4) ;

the purification mechanism (2) , comprising a purification reaction tank (21) internally providing with an impeller (23) , a water pump (24) and a filler, a water hole is formed in a side wall of the purification reaction tank (21) , an ultrasonic emission rod (22) and an ultrasonic generator (25) are disposed outside the purification reaction tank (21) , the ultrasonic generator (25) is electrically connected with the ultrasonic emission rod (22) , the ultrasonic generator (25) and the water pump (24) are electrically connected with a controller (26) , and a storage battery (27) is configured to provide a power source for the ultrasonic generator (25) , the water pump (24) and the controller (26) ;

the transmission mechanism (3) , configured to make pedals (333) rotate the impeller (23) under the action of human; and

the landscape mechanism (4) , comprising a dragon head (41) disposed on a head of the hull (1) , wherein the dragon head (41) is provided with a water spray hole (42) , a rotating ball (43) is disposed at the water spray hole (42) , and the water spray hole (42) communicates with the water pump (24) through a pipeline; and a solar roof (44) is disposed above the hull (1) , support rods are disposed between the solar roof (44) and the hull (1) , and the solar roof (44) is electrically connected with the storage battery (27) .
The device according to claim 1, wherein,

the bottom of the hull (1) is provided with a concave structure, and the purification reaction tank (21) , the ultrasonic emission rod (22) and the ultrasonic generator (25) are hung at the concave structure.
The device according to claim 1, wherein,

the transmission mechanism (3) comprises a power assembly (31) and a force transmission assembly (32) ;

the power assembly (31) comprises a power transmission shaft (311) and a power transmission bevel gear (312) , the power transmission shaft (311) is of an S-shaped structure and passes through the center of the power transmission bevel gear (312) , and the pedal is arranged at (333) two ends of the power transmission shaft (311) ; and

the force transmission assembly (32) comprises two transmission shaft bevel gears (3211, 3212) , a transmission shaft (322) , a drive shaft bevel gear (323) , and a drive shaft (324) , , the centers of the two transmission shaft bevel gears (3211, 3212) are connected by the transmission shaft (322) , the transmission shaft bevel gear (3211) is butted with the power transmission bevel gear (312) , the transmission shaft bevel gear (3212) is butted with the drive shaft bevel gear (323) , and the drive shaft bevel gear (323) is connected with the corresponding impeller (23) through one of the drive shafts (324) .
The device according to claim 1, wherein,

the filler is a light weight ceramsite, and the light weight ceramsite is prepared from the following raw materials in parts by weight: 1-2 parts of calcium peroxide particles, 2-3 parts of plastic clay, 4-8 parts of sawdust, and 2-3 parts of iron powder.
The device according to claim 1, wherein,

the light weight ceramsite has a particle size of 6-10 mm.
The device according to claim 1, wherein,

the hull (1) is internally provided with seats (45) .