• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The present invention relates to a system for temperature monitoring of the production of pelleted feed. The system comprises a) an open-ended corridor defined by walls and adapted for receiving a stream of pelleted feed, b) a carousel comprising a plurality of compartments adapted for receiving a portion of pelleted feed, and c) a plurality of temperature sensors. Each sensor is at least partially located in a respective one of said compartments, and a part of the carousel extends into the corridor through an opening in the walls of said corridor, thereby allowing a compartment to be filled with pelleted feeds passing through the corridor.
    公开号:DK202000076A1
    申请号:DKP202000076
    申请日:2020-01-22
    公开日:2021-06-03
    发明作者:Eckerdal Jessen Lasse
    申请人:Danish Feed Tech Solutions Aps；
    IPC主号:
    专利说明:

    DK 2020 00076 A1 1 System for temperature monitoring of the production of pelleted feed Technical field of the invention The present invention relates to the production of pelleted feed, and more particularly to temperature monitoring of the feed material during the production process.
    Background of the invention It is general knowledge that animals make better gains on pelleted feed than a meal ration. One of the reasons for that may be that the heat generated in conditioning — and pelleting make the feedstuffs digestible by breaking down the starches. To kill bacteria, present in the feedstuff, the processing temperature should reach 81 degrees Celsius. Supplementation of pelleted feed with enzymes enhances its nutritive value, thereby increasing the effectiveness of digestion. Exogenous enzymes are mainly added to enhance the accessibility of nutrients from feed ingredients. The animal feed industry uses enzymes that degrade crude fiber, starch, proteins, and phytates, and being proteins, they are eventually digested or excreted by the animal, having no residual effect on products like meat or egg. To avoid denaturing the enzymes and just as importantly to keep the energy consumption at a minimum, the processing temperature must not be too high. Within the field of wood pellets, the problem with controlling the processing temperature to avoid excessive energy consumption is also relevant. However, it is currently quite difficult to monitor the processing temperature, and the current solutions are unreliable.
    Description of the invention It is an object of the present invention to provide a system for temperature monitoring of the production of pellets, such as pelleted feed or wood pellets. A first aspect relates to a system for temperature monitoring of the production of pellets, such as pelleted feed or wood pellets, comprising: - an open-ended corridor defined by walls and adapted for receiving a stream of
    DK 2020 00076 A1 2 pelleted feed; - a carousel comprising a plurality (two or more) of compartments adapted for receiving a portion of pelleted feed; and - a plurality of temperature sensors, wherein each sensor is at least partially located in arespective one of said compartments; wherein a part of said carousel extends into said corridor through an opening in the walls of said corridor, thereby allowing a compartment to be filled with pelleted feeds passing through said corridor.
    — The open-ended corridor forms a link between a pellet mill and a pellet cooler in e.g. a pelleted feed production line and makes it possible to monitor the temperature of the stream of pelleted feed leaving the pellet mill. The carousel is the sampling unit that continuously takes samples from the stream of pelleted feed within the corridor. The carousel comprises a plurality of compartments adapted for receiving a portion — of pelleted feed as the carousel turns, preferably by the aid of a motor. Within each compartment, the measuring tip of a temperature sensor is positioned. The position of the measuring tip is preferably in the middle of the compartment in order to obtain the core temperature of the sample. The temperature sensor is preferably provided with wireless data transmission to avoid breaking any data wires as the carousel is turning. One example of such a sensor could be a JUMO Wtrans T - RTD Temperature Probe with Wireless Data Transmission. The temperature of a pellet sample within a compartment may be measured instantaneously and/or over a predefined time period and/or as a compartment makes a turn until it is emptied. The data may be logged in a database for quality assurance of a batch and may also be used to continuously correct process parameters such as the processing temperature, e.g. by regulating the added amount of steam during the conditioning of the feed material and/or the time needed for the pellets to cool in the pellet cooler. The carousel may turn in its entirety or alternatively only some the internal parts of the carousel may turn.
    In one or more embodiments, the carousel comprises: - a housing with a bottom part and a side wall; and - a transport unit comprising a disc or roll and a motor with a motor drive shaft;
    DK 2020 00076 A1 3 wherein the disc or roll is positioned within said housing and adapted for being connected to said motor drive shaft; wherein said disc or roll is provided with at least two protruding elements, such as 2-100 elements, preferably 3-10 elements, distributed evenly at the circumference of the said disc or roll, which protruding elements extend outwardly from a central part of the said disc or roll; wherein said protruding elements together with said housing define the compartments of said carousel.
    In the present context, the terms “disc” and “roll” are to be understood broadly as a — unit suitable for being rotated and for serving as a base for the protruding elements, such as a hub or ring.
    In one or more embodiments, two neighboring protruding elements extending from the disc or roll create a closed space during their passing outside the corridor, i.e. the protruding elements are in sliding or close contact with the inner surface of the housing as the disc or roll is rotated by a connected motor drive shaft.
    Preferably, a part of the protruding elements is relatively rigid (such as a plate of steel, stainless steel, or plastic, such as polyethylene or polypropylene), and another part is relatively elastic (e.g. a plate of silicone, rubber, or elastomeric material, preferably an elastomeric material suitable for contact with feed). In one or more embodiments, a protruding part comprises two plates, a first relatively rigid plate (such as a plate of steel, stainless steel, or plastic, such as polyethylene or polypropylene) and a second relatively elastic plate (e.g. a plate of silicone, rubber, or elastomeric material, preferably an elastomeric material suitable for contact with feed), wherein — the elastic plate is fixed, e.g. releasably fastened, to the rigid plate.
    In one or more embodiments, the system further comprises a control unit configured to control the speed of rotation of the disc or roll.
    Hence, not only the size of the chamber formed between two neighboring protruding elements extending from the disc or roll are decisive for the size of the sample of pellets within a given time period, but the size of the sample of pellets may also be regulated by the speed of rotation of the disc or roll.
    The disc or roll may be coupled to a motor drive shaft, and the control unit may be configured to regulate the motor's speed (revolutions per minute), thereby indirectly regulating the rotational speed of the disc or roll.
    DK 2020 00076 A1 4 In one or more embodiments, the bottom part of the carousel housing comprises an outlet connected to a) an opening in the corridor, or b) a storage compartment, or c) directly into a downstream pellet cooler, thereby allowing a portion of a pelleted feed positioned in a compartment in the carousel to be emptied into said corridor, storage compartment, or pellet cooler as it passes over said outlet.
    In one or more embodiments, the carousel further comprises a lid covering the upper part of the carousel's compartments positioned outside the corridor.
    This configuration minimizes the heat loss from the pellet sample to the surroundings before the temperature of said sample has been properly measured.
    In one or more embodiments, each compartment comprises at least a part of a position sensor, such as at least a part of an inductive sensor.
    Preferably, the
    — position sensor is configured for determining when a compartment is in a given position relative to the corridor and/or relative to an outlet in the bottom part of the housing.
    This information may be used to optimize the time period for determining the temperature of the pellet sample within a compartment.
    The information may also be used to actively empty a compartment through its bottom e.g. by releasing a hatch or the like.
    In one or more embodiments, at least one of the compartments comprises at least a part of a position sensor, such as at least a part of an inductive sensor
    In one or more embodiments, the housing's side wall is configured to reduce the volume of each compartment as they rotate from a position within the corridor to a position just before entering said corridor.
    In one or more embodiments, the side wall is shaped such that a compartment is reduced in size during its travel around the carousel from a position within the corridor to a position immediately outside said corridor, and wherein the elastic part of a protruding element is adapted to bend relatively to said side wall as the compartment is reduced in size.
    DK 2020 00076 A1 In one or more embodiments, the side wall comprises an outer wall and an inner wall, and wherein the inner wall is adapted to be displaced relative to the outer wall such that a compartment formed between said inner wall and two protruding elements is reduced in size. The inner wall may e.g. be displaced relative to the 5 — outer wall by the aid of bolts. A second aspect relates to a pelleted feed processing line comprising a system according to the present invention.
    A third aspect relates to the use of a system according to the present invention for temperature monitoring of the production of pelleted feed.
    As used in the specification and the appended claims, the singular forms "a", "an", and "the" include plural referents unless the context clearly dictates otherwise.
    Ranges may be expressed herein as from "about" or "approximately" one particular value and/or to "about" or "approximately" another particular value. When such a range is expressed, another embodiment includes from the one particular value and/or to the other particular value. Similarly, when values are expressed as approximations, by use of the antecedent "about", it will be understood that the particular value forms another embodiment.
    It should be noted that embodiments and features described in the context of one of the aspects of the present invention also apply to the other aspects of the invention.
    — Brief description of the figures Figure 1 shows a perspective view of a system in accordance with various embodiments of the invention; Figure 2 shows a side view of a system in accordance with various embodiments of the invention; Figure 3 shows a top view of a system in accordance with various embodiments of the invention;
    DK 2020 00076 A1 6 Figure 4 shows a perspective view of a carousel in accordance with various embodiments of the invention, where the top lid has been removed; Figure 5 shows a top view of a carousel in accordance with various embodiments of the invention, where the top lid has been removed; Figure 6 shows a perspective view of a transport unit in accordance with various embodiments of the invention;
    Figure 7 shows a perspective view of a bottom part of a carousel housing in accordance with various embodiments of the invention; Figure 8 shows closeup view A from Figure 1; and
    Figure 9 shows an exploded view of a system’s corridor and carousel in accordance with various embodiments of the invention.
    Detailed embodiments of the invention
    The system’s corridor and carousel may have various configurations, and a nonlimiting example is shown in the following.
    Figures 1-3 show a system in accordance with various embodiments of the invention.
    The system 100 is adapted for being positioned between a pellet mill and a pellet cooler (not shown) in a pelleted feed production line to monitor the temperature of the pelleted feed leaving
    — the pellet mill.
    The system 100 could also or additionally be positioned between the pellet cooler and the cyclone.
    The system 100 comprises an open-ended corridor 200 defined by walls and adapted for receiving a stream of pelleted feed from the pellet mill.
    The system 100 further comprises a carousel 300 comprising a plurality of compartments (best seen in Figures 4 and 5) 310 adapted for receiving a portion of pelleted feed, and a plurality of temperature sensors 400, wherein each sensor 400 is at least partially located in a respective one of said compartments 310. A part of the carousel 300 extends into the corridor through an opening in the walls of said corridor 200, thereby allowing a compartment 310 to be filled with pelleted feeds
    DK 2020 00076 A1 7 passing through said corridor 200. In Figures 1-3, the carousel 300 comprises a top lid 320 covering the upper part of the carousel's compartments positioned outside the corridor 110. The top lid 320 is provided with three openings 322 that may be closed with a slide flap 324. This optional configuration is present if a compartment needs air to enter therein during the emptying operation of pellets, which temperature has already been measured. The slide flap 324 is better seen in Figure
    8. Figure 4 shows a perspective view of a carousel 300 in accordance with various embodiments of the invention, where the top lid 320 has been removed. The carousel 300 comprises a housing with a bottom part 332 and a side wall 334, and a transport unit comprising a roll 340 and a motor 350 with a motor drive shaft 352. The roll 340 is positioned within said housing and adapted for being connected to said motor drive shaft 352. The roll 340 is here shown with six protruding elements 342, 344 distributed evenly at the circumference of the said roll 340. The protruding — elements 342, 344 extend outwardly from a central part of the roll 340. The protruding elements 342, 344 together with the housing and top lid 320 defines the compartments 310 of the carousel 300. Figure 5 shows a top view of the carousel in Figure 4, where the sensors 400 are clearly seen relative to the compartments 310.
    Figure 6 shows a perspective view of a transport unit in accordance with various embodiments of the invention; The bottom part 332 of the carousel housing comprises an outlet 333 (Figure 7) connected to an opening in the corridor 200 via a passage 360 (Figures 1 and 4) allowing a portion of a pelleted feed positioned in a compartment 310 in the carousel 300 to be emptied into said corridor 200 as it passes over said outlet 333. In Figures 4 and 5, an optional embodiment is shown, where the side wall comprises an outer wall 334 and an inner wall 336. The inner wall 336 is adapted to be displaced relative to the outer wall 334 such that a compartment 310 formed between said inner wall 336 and two protruding elements is reduced in size. The inner wall 336 may be displaced relative to the outer wall 334 by the aid of bolts 337. As may be seen, the inner wall 336 is only present along a part of the length of the outer wall 334. The compartment formed within the corridor is formed between the
    DK 2020 00076 A1 8 outer wall 334 and two protruding elements.
    When these two protruding elements are turned as the transport unit is turned, they leave the corridor and then encounter the inner wall 336 whereby a smaller compartment is formed.
    The inner wall 336 ends at a position before the outlet 333 in the bottom part 332. Thereby, the compartment formed over the outlet 333 is increased in size to ease the emptying of pellets from said compartment.
    As seen in Figure 9, the system's corridor and carousel may also be configured as relatively flat structures (e.g. 5-20 cm tall), thereby allowing for inserting the system into an existing pellet production line, where space is limited.
    References 100 System 200 Corridor 300 Carousel 310 Compartment 320 Lid 322 Opening 324 — Slide flap 332 Bottom part 333 Outlet 334 — Side wall, outer wall 336 Side wall, inner wall 337 Bolt 340 Roll 342 First part of protruding element 344 — Second part of protruding element 350 Motor 352 Drive shaft 360 Passage 400 Sensor
    权利要求:
    Claims (10)
    [1] 1. A system for temperature monitoring of the production of pellets, such as pelleted feed or wood pellets, comprising: - an open-ended corridor defined by walls and adapted for receiving a stream of pelleted feed; - a carousel comprising a plurality, such as two or more, of compartments adapted for receiving a portion of pelleted feed; and - a plurality of temperature sensors, wherein each sensor is at least partially located in a respective one of said compartments; wherein a part of said carousel extends into said corridor through an opening in the walls of said corridor, thereby allowing a compartment to be filled with pelleted feeds passing through said corridor.
    [2] 2. A system according to claim 1, wherein the carousel comprises: - a housing with a bottom part and a side wall; and - a transport unit comprising a disc or roll and a motor with a motor drive shaft; wherein the disc or roll is positioned within said housing and adapted for being connected to said motor drive shaft; wherein said disc or roll is provided with at least two protruding elements distributed evenly at the circumference of the said disc or — roll, which protruding elements extend outwardly from a central part of the said disc or roll; wherein said protruding elements together with said housing define the compartments of said carousel.
    [3] 3. A system according to claim 2, wherein the bottom part of the carousel housing comprises an outlet connected to a) an opening in the corridor, or b) a storage compartment, or c) directly into a downstream pellet cooler, thereby allowing a portion of a pelleted feed positioned in a compartment in the carousel to be emptied into said corridor, storage compartment, or pellet cooler as it passes over said outlet.
    [4] 4. A system according to any one of the claims 1-3, wherein the carousel further comprises a lid covering the upper part of the carousel's compartments positioned outside the corridor.
    DK 2020 00076 A1 10
    [5] 5. A system according to any one of the claims 1-4, wherein at least one of the compartments comprises at least a part of a position sensor, such as at least a part of an inductive sensor.
    [6] 6. A system according to any one of the claims 2-5, wherein the housing’s side wall is configured to reduce the volume of each compartment as they rotate from a position within the corridor to a position just before entering said corridor.
    [7] 7. A system according to any one of the claims 2-6, wherein a part of a protruding elements is relatively rigid, and another part is relatively elastic.
    [8] 8. A system according to claims 2 and 7, wherein the side wall is shaped such that a compartment is reduced in size during its travel around the carousel from a position within the corridor to a position immediately outside said corridor, and wherein the elastic part of a protruding element is adapted to bend relatively to said side wall as the compartment is reduced in size.
    [9] 9. A pellet processing line comprising a system according to any one of the claims 1-8.
    [10] 10. Use of a system according to any one of the claims 1-8 for temperature monitoring of the production of pellets, such as pelleted feed or wood pellets.
    类似技术:
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    同族专利:
    公开号 | 公开日
    DK180519B1|2021-06-03|
    WO2021148370A1|2021-07-29|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US2301815A|1940-11-08|1942-11-10|Sidney J Robison|Pulverized material sampler|
    JPS538508B2|1973-10-18|1978-03-29|
    US4751030A|1986-11-20|1988-06-14|Beta Raven Inc.|Pellet mill controller with automatic differential temperature selection|
    ES2156878T3|1993-02-10|2001-08-01|Buehler Ag|PROCEDURE FOR THE ELIMINATION OF BACTERIA AND GERMANS.|
    US8397592B2|2010-02-19|2013-03-19|Vertex Pharmaceuticals, Inc.|Systems and methods for inline sampling|
    CN108445048A|2018-06-21|2018-08-24|安徽中科智能感知大数据产业技术研究院有限责任公司|A kind of airborne Internet of Things grain moisture detector|
    CN109292460A|2018-12-11|2019-02-01|郑州金诚信筛网设备有限公司|A kind of positive pressure airlock convenient for temperature control|
    法律状态:
    2021-06-03| PAT| Application published|Effective date: 20210603 |
    2021-06-03| PME| Patent granted|Effective date: 20210603 |
    优先权:
    申请号 | 申请日 | 专利标题
    DKPA202000076A|DK180519B1|2020-01-22|2020-01-22|System for temperature monitoring of the production of pelleted feed|DKPA202000076A| DK180519B1|2020-01-22|2020-01-22|System for temperature monitoring of the production of pelleted feed|
    PCT/EP2021/050997| WO2021148370A1|2020-01-22|2021-01-19|System for temperature monitoring of the production of pelleted feed|
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