WO2022027075A1 - Appareil d'alimentation en aquaculture et son épandeur d'aliments - Google Patents

Appareil d'alimentation en aquaculture et son épandeur d'aliments Download PDF

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Publication number
WO2022027075A1
WO2022027075A1 PCT/VN2021/000016 VN2021000016W WO2022027075A1 WO 2022027075 A1 WO2022027075 A1 WO 2022027075A1 VN 2021000016 W VN2021000016 W VN 2021000016W WO 2022027075 A1 WO2022027075 A1 WO 2022027075A1
Authority
WO
WIPO (PCT)
Prior art keywords
feed
driven member
drive member
spreader
spreading
Prior art date
Application number
PCT/VN2021/000016
Other languages
English (en)
Inventor
Le Tuan KIET
Mai Hoang LINH
Tran Thanh KIEN
Tran Hoang KHANG
Original Assignee
Robert Bosch (Sea) Private Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch (Sea) Private Limited filed Critical Robert Bosch (Sea) Private Limited
Publication of WO2022027075A1 publication Critical patent/WO2022027075A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K61/00—Culture of aquatic animals
    • A01K61/80—Feeding devices
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
    • Y02A40/81—Aquaculture, e.g. of fish

Definitions

  • the present invention relates to an apparatus of feeding in aquaculture.
  • the present invention relates to an apparatus of feeding shrimp, and a feed spreader thereof.
  • the costs of feed used in an aquaculture industry and epsecially in a shrimp farming industry take up a very large proportion, aproximately 40% of the total costs. Improvements of a food conversion rate (FCR) to a finished product weight are especially important.
  • FCR food conversion rate
  • the redundant feeds not only are wasteful but affect the water quality of the farming pond, cause the diseases for liverstock.
  • a plural of known apparatuses of feeding shrimp are produced.
  • a problem of the apparatuses of feeding shrimp is that the feed amount is unevenly distributed on the surface of the farming, where there is a redundancy, where there is a shortage. This results in that the shrimps of the same class unevenly growth, making it difficult for the shrimp harvest.
  • the redundant feeds rapidly cause the water pollution of the farming pond.
  • the apparatuses of feeding in aquaculture in particular the apparatus of spreading the feed for shrimp is conventionally provided with two or three feed spreading tubes which are attached perpendicular to the axis of a rotating unit.
  • the feeds are dropped into the rotating unit va are spread by the centrifugal forces via said tubes when the rotating unit is rotated by electric motor which is operationally connected to the rotating unit.
  • the feed spreading tubes are the same in structure, the feeds to be spread from the apparatus are concentrated in a fixed area.
  • the feed spreading tubes are started to rotate, a great amount of feeds is spread out at the regions which are close to and around the apparatus of feeding. This leads to the fact that in one place there are too much shrimp feeds to eat, while in other place there are not any feeds.
  • the present invention provides a feed spreader of an apparatus of feeding used in an aquaculture
  • the feed spreader comprises: a drive member structured as a hollow chamber to contain the feeds and provided with a plurality of feed holes located on a wall around the chamber; a driven member structured as a hollow chamber, which is coaxial and is outwardly fitted in the drive member so that the driven member can be rotatably moved in relation to the drive member, said driven member provided with a plurality of feed spreading tubes, of which the number and the positions are the same as those of the feed holes of the drive member; and at least one operating spring, of which one end is in contact with the the drive member and the other end is in contact with the driven member so that when the drive member is not rotated, the operating spring holds the feed holes of the drive member not communicated with the feed spreading tubes of the driven member, and when the drive member are rotated to a certain speed, the operating spring pushs to rotate the driven member so that the feed spreading tubes in the driven member and the feed holes of the drive member are communicated to each other.
  • the present invention provides an apparatus of feeding used in an aquaculture comprising the feed spreader.
  • Fig. 1 is a view of a commercially available apparatus of feeding shrimp and a feed spreader of the apparatus.
  • Fig. 2. is a view in detail of the main members of the feed spreader according to an embodiment of the present invention.
  • Fig. 3 is a view showing the members of the feed spreader in the assembled state.
  • Fig. 4 is a graph showing a relationship between a rotating speed and time, with respect to the close/open of the feed spreader according to the present invention.
  • Fig. 5 is a perspective view of an apparatus of feeding shrimp according to the present invention.
  • Fig. 6 is a graph of comparision of density and distance with which the feeds are spread between the commercially available apparatus and the apparatus according to the embodiment of the present invention.
  • Fig. 1 Shown in Fig. 1 is an apparatus of feeding shrimp and a feed spreader of the commercially available apparatus.
  • the feed spreader is provided as a containing box which is provided with a plurality of holes communicating with a plurality of spreading tubes. There are a few spreading tubes, which are of the same length and the tilt angle in relation to the axis of the box.
  • the feeds are initially thrown out with the slow speed, which is gradually increased, the feeds are unevently spread from the apparatus and mainly concentrated around the apparatus and on a boundary of the spreading radial of the feeds. At the same time, the feeds are relatively significantly remained in the apparatus after the apparatus stops spreading the feeds.
  • Fig. 2 which is a view in detail of the main members of the feed spreader 100 of the apparatus of feeding used in aquaculture according to the present invention.
  • the feed spreader 100 comprises a rotating unit composed of a drive member 1, a driven member 2 and operating spring 3.
  • An electric motor (not shown) is coaxially mounted to and transfers rotation to the drive member 1.
  • the drive member 1 is generally provided as a hollow cylindrical cavity to contain the feeds, on circumference of which is formed a plurality of feed holes 12.
  • the driven member 2 is also provided as a hollow cylindrical cavity of which the inner diameter is slightly larger than the outer diameter of the drive member 1 so that it can be covered onto and fitted on the drive member 1.
  • the feed spreading tubes 22 are structured so that they can be separated, exchanged va replaced from the driven member 2.
  • the feed spreading tubes 22 are designed so as to have the different lengths and feed spreading angles.
  • the drive member 1 transfers its rotation to the driven member 2 by a plurality of operating springs 3.
  • the feed spreader 100 comprises two operating springs which are symmetrically disposed. One end of the operating spring 3 is rested on the drive member 1, the other end of the operating spring is rested on the driven member 2. According to the present invention, as shown in Fig.
  • a plurality of tabs on which one end of the operating spring 3 can be rested.
  • a plurality of stoppers 23 to which the other end of the operating spring 3 is contacted.
  • the stoppers can be provided as a plurality of bolts which can be screwed in the predetermined positions formed on the driven member 2 so as to adjust the compression ratio of the operating spring 3.
  • Fig. 3 is a view showing the members of the feed spreader in the assembled state.
  • the drive member 1 and the driven member 2 are coaxially attached to each other by a plurality of fastening members including the threaded bolts 11 and the slits 21.
  • the slits 21 are provided in the driven member 2, in the normal state, the length of the slit is the same as the offset between the feed holes 12 and the feed spreading tubes 22.
  • the threaded bolt 11 is inserted in the slit 21 and screwed into the drive member 1.
  • the threaded bolts 11 function to prevent the drive member 1 and the driven member 2 from separating from each other but still able to rotate relative to each other. Therefore, the threaded bolts 11 are not fastened to the slit 21.
  • the operating springs 3 transfer the rotation from the drive member 1 to the driven member 2. However, this is not main function of the operating spring 3.
  • the operating spring 3 applies a thrust force to both the drive member 1 and the driven member 2 and keeps misalignment of feed holes 12 and feed spreading tubes 22, the feeds inside the cavity of the rotating unit are not distribute via the spreading tubes 22.
  • the motor is sped up, the drive member 1 rotates from 0 to Vmax.
  • the driven member 2 gradually rotates by the drive member 1 with a certain retardation.
  • the rotating speed reachs Vmax, tl ⁇ t ⁇ t2
  • the feed holes 12 and the feed spreading tubes 22 are communicated to each other. At this time, the feeds are simultaneously spread via the feed spreading tubes 22.
  • the feed spreading tubes 22 are designed so as to have the different lengths.
  • the practice shows that, with the different lengths of the spreading tubes, the speed of the feed particles going out from the end of spreading tubes 22 is different from each other, thus the falling positions of the feeds is also different.
  • a plurality of spreading tubes 22 are disposed so as to pass through the center axis of the spreader and the angles formed by spreading tubes 22 in relation to a plane perpendicular to the center axis are different. It means that, the spreading tubes 22 each are provided with a different spreading angle. The different spreading angles result in the different radial feed spreading regions as well.
  • FIG. 5 Shown in Fig. 5 is a perspective view of apparatus of feeding shrimp 1000 according to the present invention.
  • the apparatus comprises a feed spreader 100, a hopper 200, a feed container 300, a motor 400 and a horse 500.
  • the feed spreader 100 receives the feeds from the feed container 300 via hopper 200 placed above.
  • the feed spreader 100 is coaxially mounted to and driven by the motor 400.
  • Horse 500 is structured so as to stand on a plane, to be capable of withstanding a load to support the feed container 300 and secure the motor 400.
  • the motor 400 rotates to rotatably drive the feed spreader 100.
  • the feeds will be spread around the apparatus of feeding shrimp 1000 in a certain radial region.
  • the feeds will be rapidly, fully and uniformly spread.
  • the shrimps will easily eat it all without concentrating in a small feed region. Therefore, the apparatus can substantially improve the FCR.
  • Fig. 6 is a graph of comparision of the radial feed spreading amounts of the commercially available apparatus to that of the apparatus in the embodiment of the present invention through experimental measurements. It can be easily found that, in the conventional apparatus, the spreading amount of the leeds mainly focus around the apparatus of feeding. It will be too much for the shrimps to eat, while the feeds are substantially insufficient in the remote areas. With the structure of the apparatus of feeding in the present invention, the spreading amount of the feeds is more uniformly realized.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Marine Sciences & Fisheries (AREA)
  • Zoology (AREA)
  • Animal Husbandry (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Farming Of Fish And Shellfish (AREA)

Abstract

L'invention concerne de manière générale un appareil d'alimentation utilisé en aquaculture. En particulier, l'invention concerne un appareil d'alimentation pour crevettes et un épandeur d'aliments de l'appareil. L'épandeur d'aliments est structuré avec sa fermeture/ouverture par la force d'inertie et les tubes d'épandage dont les longueurs et les angles d'épandage d'aliments sont différents l'un de l'autre, ce qui permet à l'appareil d'alimentation d'épandre plus uniformément les aliments dans le sens radial d'épandage de l'épandeur d'aliments, d'empêcher les aliments en trop de rester dans les tubes d'épandage d'aliments, améliorant ainsi l'efficacité de l'alimentation de crevettes.
PCT/VN2021/000016 2020-07-31 2021-08-02 Appareil d'alimentation en aquaculture et son épandeur d'aliments WO2022027075A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
VN1-2020-04442 2020-07-31
VN1202004442 2020-07-31

Publications (1)

Publication Number Publication Date
WO2022027075A1 true WO2022027075A1 (fr) 2022-02-03

Family

ID=80036195

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/VN2021/000016 WO2022027075A1 (fr) 2020-07-31 2021-08-02 Appareil d'alimentation en aquaculture et son épandeur d'aliments

Country Status (1)

Country Link
WO (1) WO2022027075A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115176741A (zh) * 2022-07-05 2022-10-14 湖北海洋工程装备研究院有限公司 一种可调节气动力面域饲料播撒装置
CN115191391A (zh) * 2022-07-17 2022-10-18 董元 药剂饲料掺混器与掺混方法以及应用其的鱼料投喂系统
CN115868444A (zh) * 2023-02-10 2023-03-31 山东省海洋科学研究院(青岛国家海洋科学研究中心) 一种水产用含酶含微生物营养物质的播撒装置
CN117016493A (zh) * 2023-08-22 2023-11-10 山东农业工程学院 一种分级喂养撒料装置及系统

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202799885U (zh) * 2012-09-20 2013-03-20 广州市中浪机械科技有限公司 一种离心式饲料投放机
US20130215414A1 (en) * 2010-11-13 2013-08-22 Wu Weiguo Split feed distributor with feed supplied from below and thrown circumferentially
CN208446383U (zh) * 2018-05-31 2019-02-01 苏州泓冠机械设备有限公司 一种用于抛饵机中的抛料装置
CN111109175A (zh) * 2020-01-14 2020-05-08 晶傲威电气（常州）有限公司 一种投料结构及投料设备

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130215414A1 (en) * 2010-11-13 2013-08-22 Wu Weiguo Split feed distributor with feed supplied from below and thrown circumferentially
CN202799885U (zh) * 2012-09-20 2013-03-20 广州市中浪机械科技有限公司 一种离心式饲料投放机
CN208446383U (zh) * 2018-05-31 2019-02-01 苏州泓冠机械设备有限公司 一种用于抛饵机中的抛料装置
CN111109175A (zh) * 2020-01-14 2020-05-08 晶傲威电气（常州）有限公司 一种投料结构及投料设备

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115176741A (zh) * 2022-07-05 2022-10-14 湖北海洋工程装备研究院有限公司 一种可调节气动力面域饲料播撒装置
CN115191391A (zh) * 2022-07-17 2022-10-18 董元 药剂饲料掺混器与掺混方法以及应用其的鱼料投喂系统
CN115868444A (zh) * 2023-02-10 2023-03-31 山东省海洋科学研究院(青岛国家海洋科学研究中心) 一种水产用含酶含微生物营养物质的播撒装置
CN115868444B (zh) * 2023-02-10 2023-08-15 山东省海洋科学研究院(青岛国家海洋科学研究中心) 一种水产用含酶含微生物营养物质的播撒装置
CN117016493A (zh) * 2023-08-22 2023-11-10 山东农业工程学院 一种分级喂养撒料装置及系统
CN117016493B (zh) * 2023-08-22 2024-05-28 山东农业工程学院 一种分级喂养撒料装置及系统

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