JP3069779U - Cultured basket washing and drainage filtration equipment for shellfish - Google Patents

Abstract

(57) [Summary] [PROBLEMS] An apparatus for effectively collecting and removing deposits in wastewater washed from a culture basket for shellfish, mainly scallops. An endless band-shaped filter cloth is stretched between two rollers at an inclined position as an apparatus for washing and draining a culture cage for shellfish, and a side plate along a side edge of the filter cloth and a filter for downward movement. An inclined plate is provided along the cloth surface to reach the water splash prevention wall.A scraping plate is brought into contact with the filter cloth surface near the start of the downward movement to collect and collect attached matter, and a drain port is provided in the water splash prevention wall. Connected to the drainage outlet of the aquaculture basket washing device. In this filtration device, a pair of dehydrating rollers including a fixed shaft and a movable shaft sandwiching the filter cloth in the foremost position.
Should be provided.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to an apparatus for washing and draining cultivation baskets of shellfish, mainly scallops.

[0002]

[Prior art]

 Shells such as scallops, oysters, and pearl oysters have been cultivated in the past. Each of them has a rectangular metal frame with a conical mesh of the same type stretched over a square metal frame, and is connected to multiple vertical lengths. In the case of cultured scallop, scallops are used in several stages according to their growth.However, since they are left in the sea for a long period of several months or more, plankton adheres to the net yarn and other organisms adhere as they grow. . Depending on the length of time they are placed in the sea, rice oysters, oysters, wisteria, coral, etc. often adhere. These deposits impede water permeability and prevent the scallop from obtaining food and oxygen. Therefore, it is necessary to remove these deposits at regular intervals during the aquaculture, including at the start of aquaculture.

[0003] In the early days, a farming basket was left in the sea for a long period of time, so that there were many hard objects such as fujitsubo and coral, and the hammer was knocked down to remove these. It was extremely complicated and labor-intensive.

[0004] Thereafter, as a washing device for a cultivation basket for shellfish, mainly scallops, a plurality of rotating rollers arranged side by side in parallel on a horizontal surface are pressed by a spring toward the rotating rollers. A push-rotating roller is installed opposite to the roller, so that the culture car is bitten and transported by both rollers sequentially, so that the one in the advancing direction of the culture car increases its pressing force sequentially. Japanese Patent Publication No. Sho 54-15838 proposes a method in which the adhered substance is crushed by a pressing rotary roller and the crushed adhered substance is washed off by high-pressure water spray.

[0005] By the way, a problem that has arisen at present is that the wastewater containing adhering substances during washing of the culture cages of shellfishes, mainly scallops, is almost completely abandoned in the sea. Deposits accumulate in the sea near the beach where the work is done, hindering the navigation of the ship and causing dredging. Therefore, in some cases, wastewater containing adhering matter after cleaning is collected, passed through a plurality of rows of combs that protrude and move between many filaments in a ring, and the adhering matter is scraped and collected for incineration. However, it was not carried out smoothly because the deposits tended to settle during the transfer of the wastewater until the deposits were scraped.

[0006]

[Problems to be solved by the invention]

 It is an object of the present invention to provide a device for effectively collecting and removing deposits in wastewater generated when washing a cultivation basket of shellfish, mainly scallops.

[0007]

[Means for Solving the Problems]

 Here, the inventor stretches the endless belt-like filter cloth between the two rollers at the inclined position, and splashes water along the side plate along the side edge of the filter cloth and the filter cloth surface moving downward. Shells that are equipped with an inclined plate reaching the prevention wall, abutting a scraping plate against the filter cloth surface near the start of the downward movement to collect and collect attached matter, and a drainage port is provided in the splash prevention wall. Found a shellfish culture basket washing drainage filter installed at the drainage outlet of the aquaculture basket washing device.

In the apparatus for washing and filtering wastewater of a cultured cage for shellfish, a pair of dehydrating rollers having a fixed shaft and a movable shaft may be provided so as to sandwich the filter cloth at the highest position.

[0009]

[Embodiment of the invention]

 The cultivation basket washing drainage filtration device for shellfish of the present invention (hereinafter referred to as a filtration device) is movable as a plurality of sets of fixed shaft rubber rollers opposed to each other as a cleaning device for a cultivation basket for shellfish (hereinafter referred to as a cleaning device). A culture cage is supplied between the shaft rubber rollers, and is suitable for a system in which high-pressure water is sprayed from a nozzle reciprocating from above the culture cage to remove attached matter, and the culture cage at the bottom of the washing device is suitable. It is connected to the drop port at the lower end of the slope to guide the washing drainage that falls from the bottom.

[0010] The filter device is provided with a splash prevention wall in a required range in order to prevent scattering of the washing wastewater that falls, thereby facilitating the work. An endless band-shaped filter cloth is stretched between the two rollers so that the filter drain receives the washing drainage that falls from the cleaning apparatus, and the tension adjusting roll 3 is applied to the filter cloth as necessary. In addition, a side plate along the side edge of the filter cloth and an inclined plate along the surface of the filter cloth that moves downward and reach the water splash prevention wall are provided. The movement of the cloth forms a rise and a descent to increase the filtration area and to allow the washing wastewater to flow down on the filter cloth surface. The side plate is to prevent the washing water from the culture basket from directly entering the inside of the filter cloth. The inclination of the filter cloth must be limited to such a degree that the deposits do not fall from the upwardly moving filter cloth surface. As a result, it is appropriate that the inclination angle is about 25 degrees. If you want to secure more filtration area, make it protrude from the main body of the cleaning device. As a general rule, it is better to discharge the deposits on the culture basket supply side of the washing device and monitor the filtration status.

[0011] In particular, the scraping plate is brought into contact with the filter cloth surface upward in the tangential direction of the filter cloth surface near the start of the downward movement to drop the deposit from the filter cloth surface. The scraping plate is made of synthetic resin or the like so as not to damage the filter cloth surface, and is brought into contact with the filter cloth surface via a support shaft and a spring. Falling objects can be collected in containers in a batchwise manner, or a belt conveyor can be installed directly underneath to transport the objects to a predetermined location for collection. When a belt conveyor is used, it is effective when a plurality of cleaning devices are arranged in parallel. Collected deposits facilitate post-treatment such as incineration. Then, the filtered waste water is guided directly and through the inclined surface to the drain port in the splash prevention wall.

In this filter device, if a pair of rollers for dewatering the filter cloth is provided by a lower fixed shaft and an upper movable shaft with the filter cloth in the foremost position interposed therebetween, a large amount of washing water is discharged. It is convenient. The upper movable shaft only guides the ends of both shafts with vertical grooves, and when it is not necessary, lift it up and put it in the horizontal groove. The roller of the movable shaft has a weight of about 10 kg and is pressed by this. The moving speed of the filter cloth at the time of filtration depends on the discharge speed of the washing wastewater.

[0013] The drainage that has passed through the upwardly moving filter cloth and dropped onto the inner surface of the downwardly moving filter cloth pushes out as much residual matter as possible on the outer surface of the downwardly moving filter cloth to clean the outer surface of the filter cloth, and directly and inclines. Down the plate to the drain. Even if there is fine deposits accompanying the filtered wastewater, it will not be a problem to return to seawater.

The filter cloth to be used can be selected from commercially available products made of polyester or the like, having high mechanical strength and good filtration efficiency.

[0015]

【Example】

Hereinafter, the filtration device will be described more specifically with reference to examples. This filtration device is adapted to use about 220 L of seawater per minute for washing scallop. As shown in FIG. 1, the filtering device removes the washing wastewater from the two rollers 2 through a tension adjusting roll 3 to form an endless filter cloth 1 with a thickness of 1.50 mm and ventilation. A filter cloth made of polyester monofilament with a twill weave of 20,000 cc / cm ² / min [T1193L, manufactured by Shikishima Canvas Co., Ltd.] is stretched and rotated at a speed of 5.25 m / min.

A side plate 4 with a cleaning port 9 and an inclined plate 5 are provided around the filter cloth 1, the traveling direction of the filter cloth 1 is increased, and the filter cloth 1 is inclined at an angle of 25 degrees. A pair of large and small stainless steel rollers 6 is placed for dewatering the filter cloth, and the upper large roller 6 is 10 kg. A plastic scraping plate 7 abuts tangentially upward on the filter cloth surface near the start of the downward movement. A container for collecting attached matter is installed directly below the container, and a drain port 10 is provided at one end of the splash prevention wall 8. The width of the filter cloth 1 is 620 mm, and the length of one side of the inclined surface is 1100 mm. This filtration device was used for washing the scallop cultivation baskets with a single round (60 cmφ) 10-step (1 step 20 cm) iron wire frame coated with polyvinyl chloride and a nylon net with each step having a bottom. In the case of a cylindrical one, three to five trains per minute, one train is a square iron wire frame with a side of 35 cm, and the same covering is applied. In the case of the connection with te, it was possible to correspond to the connection of 2 to 4 connections per minute.

[0017]

[Effect of the invention]

 Since the attached debris in the washing and drainage of shellfish culture cages is effectively removed and collected, post-treatment such as incineration is facilitated, and there is no hindrance to ship navigation due to accumulation in the sea.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing a cultivation basket washing drainage filtration device for shellfish

FIG. 2 is an explanatory view showing the arrangement of a shellfish culture cage cleaning drainage filtration device in combination with a shellfish culture cage cleaning device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Filtration cloth 2 Roller 3 Tension adjustment roll 4 Side plate 5 Inclined plate 6 Roller 7 Scratch plate 8 Water splash prevention wall 9 Cleaning port 10 Drain port

Claims (2)

[Utility model registration claims] An endless band-shaped filter cloth is stretched between two rollers at an inclined position to prevent water from splashing along a side plate along a side edge of the filter cloth and a filter cloth surface moving downward. An inclined plate that reaches the wall, a scraping plate comes into contact with the surface of the filter cloth near the start of the downward movement to collect and collect attached matter, and a drain port is provided in the splash prevention wall. Shellfish culture basket cleaning drainage filtration equipment connected to the drainage outlet of the culture basket cleaning equipment. 2. A pair of dehydrating rollers comprising a fixed shaft and a movable shaft with a filter cloth located in front of the filter cloth rising up therebetween being provided.
A cultivation basket washing drainage filtration device for the shellfish described.