A kind of swamp clam killing treatment equipment and process

Abstract

The present invention discloses a kind of killing and processing equipment and process for swamp clams. The killing and processing equipment for swamp clams comprises a reaction device and an ultrasonic device. The reaction device has a water storage space, a support device is arranged in the water storage space, and the height of the support device is adjustable. The ultrasonic device comprises an ultrasonic plate and an ultrasonic reaction generator, the ultrasonic plate is arranged on the support device, and the ultrasonic reaction generator is connected to the ultrasonic plate. A killing and processing process for swamp clams comprises the following steps: raw water is sent into the water storage space of the reaction device; the ultrasonic reaction generator is started, and the raw water in the water storage space is ultrasonically treated by the ultrasonic plate connected to the ultrasonic reaction generator to kill the swamp clams. The killing effect is good, the processing cost is low, and it is easy to implement. It can not only efficiently and quickly kill swamp clam larvae without shells, but also effectively kill adult swamp clams protected by shells.

Description

Technical Field

[0001] The invention is used in the technical field of killing and treating marsh clams in raw water, and particularly relates to equipment and a process for killing and treating marsh clams. Background Art

[0002] Marsh clams are a kind of freshwater bivalve molluscs native to Southeast Asia. Due to their massive reproduction, water pipelines are blocked. Therefore, there is an urgent need for an effective method to kill marsh clams in raw water pipelines.

[0003] At present, there are many methods for killing clams at home and abroad, such as physical removal, chemical killing, biological control, etc. The above methods for killing clams have the following problems in actual operation:

[0004] 1) High treatment cost and difficult to eradicate: Adult clams are protected by shells and have a certain degree of environmental tolerance and strong reproductive capacity. Once they enter a water conservancy project, they are usually difficult to remove. Larval clams have poor self-protection capabilities, so it is a good time to prevent and kill them, but they are small and numerous, so it is not easy to kill them completely.

[0005] At present, the physical treatment methods for killing clams mainly include drying out of water, soaking and spraying with high-salinity water or high-temperature water, direct scraping by manual or machine, ultraviolet irradiation, applying current and voltage, adjusting water flow rate, etc. These methods are commonly used in the treatment of clams pollution in water diversion tunnels, but they cannot completely cure the breeding of clams, and they need to be repeated and costly. The process of removing adult clams attached to the surface of engineering objects will also cause a certain degree of damage to the surface of the structure, affecting the service life of the project and causing a higher subsequent attachment density, which has become a huge problem that plagues urban water supply systems.

[0006] 2) Introducing new pollution sources while killing: Nearly 40 kinds of agents have been tried to kill clams in current research, including chlorine, hydrogen peroxide, lime, copper sulfate, potassium salt, copper oxide, zinc salt, ozone and various shellfish killers. However, for large-flow water delivery systems, chemical methods are costly and impractical, and the use of harmful chemicals will cause environmental pollution and ecological damage to the power plant reservoir system.

[0007] 3) It takes a long time to take effect: Carp, black carp, bream and other fish living in the middle and lower layers of the water body can directly swallow the clams. The advantage of biological control is that it is beneficial to environmental protection and generates economic benefits. The disadvantage is that it cannot be as effective as physical and chemical methods and it takes a certain amount of time to be effective.

[0008] Therefore, it is urgent to develop a kind of killing and processing equipment and process of limpet clam which has good killing effect, low processing cost and is easy to implement. Summary of the invention

[0009] The purpose of the present invention is to solve at least one of the technical problems existing in the prior art, and to provide a kind of marsh clam killing and processing equipment and process with good killing effect, low processing cost and easy implementation, which can not only efficiently and quickly kill marsh clam larvae without shells, but also effectively kill adult marsh clams protected by shells.

[0010] The technical solution adopted by the present invention to solve its technical problem is:

[0011] In the first aspect, a device for killing and treating swamp clams includes a reaction device and an ultrasonic device. The reaction device has a water holding space, a supporting device is arranged in the water holding space, and the support device is height-adjustable. The ultrasonic device includes an ultrasonic plate and an ultrasonic reaction generator. The ultrasonic plate is arranged on the supporting device, and the ultrasonic reaction generator is connected to the ultrasonic plate.

[0012] In combination with the first aspect, in some implementations of the first aspect, the ultrasonic plate includes an ultrasonic transducer vibrator and a stainless steel plate.

[0013] In combination with the first aspect and the above-mentioned implementations, in some implementations of the first aspect, a plurality of aeration plates are provided at the bottom of the water storage space, and the aeration plates are connected to the blower through a pipe valve assembly.

[0014] In combination with the first aspect and the above-mentioned implementation methods, in some implementation methods of the first aspect, a reflux device is also included, wherein the reflux device includes a reflux water pipe and a reflux pump, and the reflux water pipe forms a water inlet at the bottom of the reaction device and a water outlet at the top of the reaction device.

[0015] In combination with the first aspect and the above-mentioned implementations, in some implementations of the first aspect, the ultrasonic reaction generator has a power adjustment knob.

[0016] In combination with the first aspect and the above-mentioned implementations, in some implementations of the first aspect, a water inlet device is also included, the water inlet device includes a water inlet pipe and a water pump, the water inlet pipe is connected to the reaction device, and the reaction device is provided with an overflow port and a drain port.

[0017] In a second aspect, a process for killing and treating limpet clams comprises the following steps:

[0018] Feeding raw water into the water storage space of the reaction device;

[0019] The ultrasonic reaction generator is started, and the raw water in the water storage space is ultrasonically treated through an ultrasonic plate connected to the ultrasonic reaction generator to kill the clams.

[0020] In combination with the first aspect, in certain implementations of the first aspect, a blower is started to blow and aerate the raw water in the water storage space through an aeration disk.

[0021] In combination with the first aspect and the above-mentioned implementations, in certain implementations of the first aspect, a reflux pump is started to allow the raw water in the water storage space to flow back from the bottom to the top of the reaction device along the reflux water pipe.

[0022] In combination with the first aspect and the above-mentioned implementations, in certain implementations of the first aspect, raw water is transported to the reaction device by way of a water inlet pipe and a water pump in a manner of submerging water at the lower end.

[0023] One of the above technical solutions has at least one of the following advantages or beneficial effects:

[0024] 1) This technical solution is based on the penetrating and destructive mechanism of ultrasound, which can kill a large number of adult clams and larval clams, thereby significantly reducing the number of clams in raw water pipelines and hydropower plants, alleviating the pressure of clams blocking pipelines, and reducing the economic losses caused by clams blocking.

[0025] 2) This technical solution is used to kill the clams, and only the process parameters need to be adjusted to complete the killing and removal of the clams in the raw water. Since no major changes are required to the process, it has the advantages of small engineering workload, low investment, easy implementation, and simple operation and maintenance, and can meet the needs of water supply plants and hydropower plants for removing clams. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention will be further described below in conjunction with the accompanying drawings:

[0027] Figure 1 It is a schematic structural diagram of an embodiment of a device for killing and treating swamp clams of the present invention. DETAILED DESCRIPTION

[0028] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0029] In the present invention, if directions (up, down, left, right, front and back) are described, it is only for the convenience of describing the technical solution of the present invention, and does not indicate or imply that the technical features referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it cannot be understood as a limitation of the present invention.

[0030] In the present invention, "several" means one or more, "multiple" means more than two, "greater than", "less than", "exceed" and the like are understood to exclude the number itself; "above", "below", "within" and the like are understood to include the number itself. In the description of the present invention, if there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0031] In the present invention, unless otherwise clearly defined, the words "set", "install", "connect" and the like should be understood in a broad sense, for example, they can be directly connected or indirectly connected through an intermediate medium; they can be fixedly connected or detachably connected or integrally formed; they can be mechanically connected or electrically connected or able to communicate with each other; they can be the internal connection of two elements or the interaction relationship between two elements. Those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

[0032] The principle of the embodiment of the present invention: When sound waves propagate in liquid, since sound waves are longitudinal waves, the effect of longitudinal waves pushing the medium will cause the pressure in the liquid to change and produce countless tiny vacuum bubbles, which is called the "cavitation effect". This experiment uses this cavitation effect. When ultrasonic waves propagate in the liquid along the gaps in the liquid, the molecules of the liquid are transferred by the energy of the ultrasonic waves and have energy. The molecular interaction produces a large number of bubbles, which constitute the prerequisite for cavitation. When the energy accumulates to a certain degree, the bursting of the bubbles will produce strong impulse energy. The huge energy produced will have a harmful effect on the swamp clams.

[0033] Theoretically, based on the compression and expansion of sound waves, the bursting cavitation bubbles will generate a pressure of more than 10,000 psi and a temperature of 20,000°F (11,000°C), and the shock wave will radiate outward rapidly at the moment of its bursting. The energy released by a single cavitation bubble is very small, but millions of cavitation bubbles burst at the same time every second, and the cumulative effect will be very strong. The strong impact force generated will cause damage to the marsh clams, which is the cause of death to the marsh clams. The minimum power required to produce cavitation is called the cavitation critical point. Only when the energy exceeds the critical point can cavitation bubbles be produced, so as to kill and remove the marsh clams.

[0034] See also Figure 1The embodiment of the present invention provides a treatment device for killing swamp clams, comprising a reaction device 10 and an ultrasonic device, wherein the reaction device 10 has a water storage space for storing raw water to be treated, and the ultrasonic device comprises an ultrasonic plate and an ultrasonic reaction generator 7, wherein the ultrasonic reaction generator 7 is connected to the ultrasonic plate. The treatment device for killing swamp clams integrates and realizes a function of killing swamp clams based on ultrasonic waves in the device.

[0035] A supporting device 4 is provided in the water storage space, and an ultrasonic plate is provided on the supporting device 4. The height of the supporting device 4 is adjustable, so as to achieve the treatment of raw water of different depths.

[0036] The ultrasonic plate includes an ultrasonic transducer vibrator 6 and a stainless steel plate 5. The stainless steel plate 5 forms a closed cavity, and the ultrasonic transducer vibrator 6 is located in the cavity. The circular ultrasonic transducer vibrator 6 in the stainless steel plate 5 converts electromagnetic energy into mechanical energy, which can effectively kill and treat the clams. In the specific use process, the number of ultrasonic circular transducers contained in the stainless steel plate 5 is 200 to 240 per ton of water.

[0037] Among them, the ultrasonic reaction generator 7 has a power adjustment knob. During the killing process of the swamp clams, the power of the ultrasonic device can be adjusted by the power adjustment knob to achieve the best killing effect. During specific use, the adjustable range of the ultrasonic power is 0 to 1200w / ton of water.

[0038] In some embodiments, see Figure 1 A plurality of aeration plates 3 are provided at the bottom of the water storage space, and the aeration plates 3 are connected to the blower through a pipe valve assembly. During the killing of the clams, the blower can dissolve gas into the raw water through the aeration plates 3, so that a large number of bubbles are generated in the raw water, which greatly enhances the "cavitation effect" of the ultrasound and increases the harmful effect on the clams.

[0039] In some embodiments, see Figure 1 , and also includes a reflux device 2, which includes a reflux water pipe and a reflux pump. The reflux water pipe forms a water inlet at the bottom of the reaction device 10 and a water outlet at the top of the reaction device 10. The reflux device 2 can drive the raw water in the reaction device 10 to flow, avoid the generation of treatment dead corners, and improve the efficiency of the killing of swamp clams.

[0040] In some embodiments, see Figure 1 , and also includes a water inlet device 1, which includes a water inlet pipe and a water pump. The water inlet pipe is connected to the reaction device 10. The reaction device 10 is provided with an overflow port 9 and a drain port 11. The water inlet device 1 can be used to transport raw water to the reaction device 10 through a pipeline in a way that the lower end is submerged in the water.

[0041] The embodiment of the present invention also provides a process for killing limulus clams, comprising the following steps:

[0042] Feeding raw water into the water storage space of the reaction device 10;

[0043] The ultrasonic reaction generator 7 is started, and the raw water in the water storage space is ultrasonically treated by an ultrasonic plate connected to the ultrasonic reaction generator 7 to kill the clams.

[0044] In some embodiments, an aeration step is also included, in which the blower is started to aerate the raw water in the water space through the aeration plate 3. The blower can dissolve gas into the raw water through the aeration plate 3, so that a large number of bubbles are generated in the raw water, which greatly enhances the "cavitation effect" of the ultrasound and increases the harmful effect on the clams.

[0045] In some embodiments, a reflux step is also included, in which a reflux pump is started to make the raw water in the water storage space flow back from the bottom to the top of the reaction device 10 along the reflux pipe. The reflux device 2 can drive the raw water in the reaction device 10 to flow, avoid the generation of treatment dead corners, and improve the efficiency of the killing of limulus clams.

[0046] This technical solution has the following technical advantages:

[0047] 1) This technical solution is based on the penetrating and destructive mechanism of ultrasound, which can kill a large number of adult clams and larval clams, thereby significantly reducing the number of clams in raw water pipelines and hydropower plants, alleviating the pressure of clams blocking pipelines, and reducing the economic losses caused by clams blocking.

[0048] 2) This technical solution is used to kill the clams, and only the process parameters need to be adjusted to complete the killing and removal of the clams in the raw water. Since no major changes are required to the process, it has the advantages of small engineering workload, low investment, easy implementation, and simple operation and maintenance, and can meet the needs of water supply plants and hydropower plants for removing clams.

[0049] In order to better understand the technical solution of the present invention, please refer to the following specific embodiments:

[0050] Embodiment 1:

[0051] Make a kind of marsh clam killing and processing equipment of the present invention, (refer to Figure 1 , the processing scale is about 120 tons / day).

[0052] The clam killing and treatment equipment is used to kill the clam, and the operation steps are as follows:

[0053] 1) using the water inlet device 1 to transport the raw water to the reaction device 10 through the pipeline in a way that the lower end is submerged;

[0054] 2) The support device 4 is adjusted to be 6 cm, 8.5 cm, and 11 cm away from the bottom of the reaction tank, and fixed to the working position;

[0055] 3) Fix the ultrasonic plate on the supporting device 4;

[0056] 4) The ultrasonic plate is connected to the ultrasonic reaction generator 7;

[0057] 5) Adjust the power adjustment knob on the ultrasonic generator 7, select the ultrasonic power of 500w and the ultrasonic wave for 50min;

[0058] 6) Plug in the power supply, turn on the switch, and kill the clams;

[0059] 7) Recording the water temperature and pH in the reaction device 10 in real time;

[0060] 8) The clams in the water transported by the reflux device 2 to the reaction device 10 are subjected to ultrasonic treatment again in the reaction device 10;

[0061] 9) controlling the air volume of the blower by an aeration control device to aerate the area of ​​the reaction device 10 so that the clams in the water inside are fully killed;

[0062] 10) Repeat steps 1) to 9).

[0063] Results of the treatment of swamp clams:

[0064] As shown in the following table:

[0065] Table 1 Death of larvae of the marsh clam

[0066]

[0067] Table 2 Death of 7±2mm long clams

[0068]

[0069] It can be seen from Table 1 and Table 2 that the ultrasonic killing and processing device for marsh clams of the present invention is used to process marsh clams in a water plant in Guangzhou, and the killing rate of marsh clam larvae and marsh clams with a body length of 7±2 mm can reach 100%.

[0070] Embodiment 2:

[0071] Make a kind of marsh clam killing and processing equipment of the present invention, (refer to Figure 1 , the processing scale is about 120 tons / day).

[0072] The clam killing and treatment equipment is used to kill the clam, and the operation steps are as follows:

[0073] 1) using the water inlet device 1 to transport the raw water to the reaction device 10 through the pipeline in a way that the lower end is submerged;

[0074] 2) The support devices 4 are adjusted to be 8.5 cm away from the bottom of the reaction tank and fixed to the working position;

[0075] 3) Fix the ultrasonic plate on the supporting device 4;

[0076] 4) The ultrasonic plate is connected to the ultrasonic reaction generator 7;

[0077] 5) Adjust the power adjustment knob on the ultrasonic reaction generator 7, control the ultrasound for 50 minutes, and select the power of 400w, 450w, 500w, 550w, and 600w respectively;

[0078] 6) Plug in the power supply, turn on the switch, and kill the clams;

[0079] 7) Recording the water temperature and pH in the reaction device 10 in real time;

[0080] 8) The clams in the water transported by the reflux device 2 to the reaction device 10 are subjected to ultrasonic treatment again in the reaction device 10;

[0081] 9) controlling the air volume of the blower by an aeration control device to aerate the area of ​​the reaction device 10 so that the clams in the water inside are fully killed;

[0082] 10) Repeat steps 1) to 9).

[0083] Results of the treatment of swamp clams:

[0084] As shown in the following table:

[0085] Table 3 Death of larvae of the marsh clam

[0086]

[0087] Table 4 Death of 7±2mm long clams

[0088]

[0089]

[0090] It can be seen from Table 3 and Table 4 that the ultrasonic killing and processing device for marsh clams of the present invention is used to process marsh clams in a water plant in Guangzhou, and the killing rate of marsh clam larvae and marsh clams with a body length of 7±2 mm can reach 100%.

[0091] Embodiment 3:

[0092] Make a kind of marsh clam killing and processing equipment of the present invention, (refer to Figure 1 , the processing scale is about 120 tons / day).

[0093] Use the clam killing equipment to kill the clam. The operation steps are as follows:

[0094] 1) using the water inlet device 1 to transport the raw water to the reaction device 10 through the pipeline in a way that the lower end is submerged;

[0095] 2) The support devices 4 are adjusted to be 8.5 cm away from the bottom of the reaction tank and fixed to the working position;

[0096] 3) Fix the ultrasonic plate on the supporting device 4;

[0097] 4) The ultrasonic plate is connected to the ultrasonic reaction generator 7;

[0098] 5) Adjust the power adjustment knob on the ultrasonic reaction generator 7, select the ultrasonic power of 500w, and control the ultrasonic time to 20min, 30min, 40min, 50min, and 60min respectively;

[0099] 6) Plug in the power supply, turn on the switch, and kill the clams;

[0100] 7) Recording the water temperature and pH in the reaction device 10 in real time;

[0101] 8) The clams in the water transported by the reflux device 2 to the reaction device 10 are subjected to ultrasonic treatment again in the reaction device 1010;

[0102] 9) controlling the air volume of the blower by an aeration control device to aerate the area of ​​the reaction device 10 so that the clams in the water inside are fully killed;

[0103] 10) Repeat steps 1) to 9).

[0104] Results of the treatment of swamp clams:

[0105] As shown in the following table:

[0106] Table 5 Death of larvae of the marsh clam

[0107]

[0108] Table 6 Death of 7±2mm long clams

[0109]

[0110] It can be seen from Table 5 and Table 6 that the ultrasonic killing device for treating clams of the present invention is used to treat clams of a water plant in Guangzhou, and the killing rate of clams larvae and small clams with a body length of 7±2 mm can reach 100%.

[0111] Of course, the invention is not limited to the above-mentioned embodiments, and those skilled in the art may make equivalent modifications or substitutions without violating the spirit of the invention, and these equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A device for killing and treating limpet clams, characterized in that: The invention comprises a reaction device and an ultrasonic device. The reaction device has a water holding space. A supporting device is arranged in the water holding space. The height of the supporting device is adjustable. The ultrasonic device comprises an ultrasonic plate and an ultrasonic reaction generator. The ultrasonic plate is arranged on the supporting device. The ultrasonic reaction generator is connected to the ultrasonic plate. A plurality of aeration plates are arranged at the bottom of the water holding space. The aeration plates are connected to a blower through a pipe valve assembly.

2. The limpet killing and processing equipment according to claim 1 is characterized in that: The ultrasonic plate comprises an ultrasonic transducer vibrator and a stainless steel plate.

3. The limpet killing and processing equipment according to claim 1 is characterized in that: It also includes a reflux device, which includes a reflux water pipe and a reflux pump. The reflux water pipe forms a water inlet at the bottom of the reaction device and a water outlet at the top of the reaction device.

4. The limpet killing and processing equipment according to claim 1 is characterized in that: The ultrasonic reaction generator has a power adjustment knob.

5. The limpet killing and processing equipment according to claim 1 is characterized in that: It also includes a water inlet device, which includes a water inlet pipe and a water pump. The water inlet pipe is connected to the reaction device, and the reaction device is provided with an overflow port and a drain port.

6. A process for killing and treating limulus sphaerocephalus, characterized in that: The method of killing and treating the swamp clams as claimed in claim 1 comprises the following steps: Feeding raw water into the water storage space of the reaction device; The ultrasonic reaction generator is started, and the raw water in the water holding space is ultrasonically treated through an ultrasonic plate connected to the ultrasonic reaction generator to kill the clams; the blower is started, and the raw water in the water holding space is aerated through an aeration disk.

7. The process for killing and treating limnid clams according to claim 6, characterized in that: The swamp clam killing and processing equipment as claimed in claim 3 is used, and the reflux pump is started to make the raw water in the water storage space flow back from the bottom to the top of the reaction device along the reflux water pipe.

8. The process for killing and treating limpet clams according to claim 6, characterized in that: The clam killing and processing equipment as claimed in claim 5 is used to transport raw water to the reaction device by submerging the lower end of the water inlet through a water inlet pipe and a water pump.

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