JP2006167578A - Animal hair separating apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an efficient animal hair separating apparatus from meat and bone meal with relatively simple structure. <P>SOLUTION: A screen 1 receives meat and bone meal crushed in a crusher of the previous process and separates the meat and bone meal of a desired size from hairs by a high speed horizontal rotary screen. The screen-passing meat and bone meal in the screen 1 is returned to a feed production line. The on-screen meat and bone meal and hairs are sent to an disintegrator 2, and hair balls formed during moving or high speed rotation are loosened here. Heavy meat and bone meal and loosened hairs are classified by a pneumatic classifier 3. The heavy meat and bone meal is recycled to the crusher, pneumatically discharged hog hairs and light meat and bone meal from an air discharge hole 3b are separated in a cyclone 5, and hairs are taken out of a rotary valve 6. Air from the cyclone 5 is discharged to the atmosphere. This animal hair separating apparatus is widely applicable to separation of granular matter different in specific gravity from fibrous matter, as well as to separation of animal meat from hairs. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an animal hair separation device, and more particularly to an animal hair separation device mixed in meat-and-bone meal during the production of feed.

  In the production of feed, it is extremely difficult to separate the meat-and-bone meal and animal hair, which are feed raw materials, by sieving. Animal hair is long but thin. If the crushed meat-and-bone meal used as feed material is passed through the sieve pass, the animal hair is longer than the mesh opening, so that most of the lateral direction on the mesh is mesh-on and the meat-and-bone meal However, since the diameter is narrower than the mesh opening, it is inevitable that a part of the mesh in the vertical or oblique direction passes through the mesh and is mixed into meat and bone meal.

For this reason, conventional animal hair removal has been carried out almost manually. On the other hand, although not related to animal hair removal, a coarse grain sorter that sorts straw scraps from cereals by horizontally rotating the upper and lower two sorting nets is known from Patent Document 1. Similarly, Patent Document 2 discloses an apparatus for selecting a granular material in a predetermined range using horizontal rotational motion.
Japanese Patent Publication No. 64-6829 Japanese Patent No. 2915035

  Patent Document 1 is a coarse grain sorter that removes foreign matter such as sawdust, wood pieces, tree branches, metal pieces, and sand larger than grains from grains. This coarse sorter arranges two sorting screens that move horizontally, and removes foreign matter larger than cereals by turning on the upper sorting screen, and removes foreign matter smaller than cereals by the lower sorting mesh pass. Is sorted and acquired as the lower sorting net is on. Basically, foreign substances are sorted only by the mesh size. With such a simple horizontal rotary sieve, it is impossible to remove animal hair having a longer length or a smaller diameter from the meat-and-bone meal serving as a feed raw material, as compared with the selection object. On the other hand, in Patent Document 2, when selecting grains, flour, earth and sand, etc. using a horizontal rotating screen, the upper and lower two-stage screen boxes are rotated horizontally while maintaining a 180 ° phase with the same radius with respect to the rotating main shaft. The centrifugal force due to the rotation is canceled out. Although the present invention ensures the stability of the apparatus by offsetting the centrifugal force accompanying the horizontal rotation, the selection itself depends on the size of the screen opening. Hair cannot be removed. In any case, the incorporation of animal hair deteriorates the quality of the feed, so it has been unavoidably inefficient to separate by hand.

  The present invention solves the above-described problems, and an object thereof is to provide an apparatus for efficiently selecting and removing animal hair with a simple structure.

  The animal hair sorting device according to the first invention of the present invention that has achieved the above object is a device for separating animal hair from crushed meat-and-bone meal, having a horizontal turning radius of 20 to 200 mm and a rotating speed of 200 to 500 rpm. It is characterized by having a sieve having a mesh with a rotation speed of 600 mm / second or more, passing a meat-and-bone meal of a certain size, and meshing more meat-bone mass and animal hair.

  In this case, it is preferable from the viewpoint of sieving efficiency that the wire diameter of the mesh is 0.2 to 3 mmφ and the mesh opening is 2 to 10 mm.

  It is desirable that the sieving machine is disposed so as to be inclined downward in the traveling direction so that the material to be sieved naturally moves to the next process.

  The animal hair sorting apparatus according to the first invention of the present invention is an apparatus for separating animal hair from crushed meat-and-bone meal, and the crushed material is inclined so as to advance at a constant speed in a fixed direction, and rotates at high speed horizontally. A sieve that has a net, passes the meat-and-bone meal of a certain size through the net, and turns the meat-and-bone meal and animal hair larger than that into a mesh-on, It is equipped with a wind sorter that sorts bone meal and animal hair by air flow, and a cyclone that removes the sorted animal hair.

The present invention has the following advantages, and can easily and efficiently sort crushed meat-and-bone meal and mixed animal hair, and contributes to improving the quality of production of feed and reducing costs.
(1) Separation of crushed meat-and-bone meal and animal hair, which was originally difficult to separate, was made possible by a sieve equipped with a high-speed horizontal rotating net.
(2) Subsequent to the sieving machine, a combination of a hair ball crusher, a wind sorter and a cyclone achieved an animal hair removal rate of approximately 100%.

  In the following, a preferred embodiment of the present invention will be described in detail mainly for the separation of pork bone meal and pork hair based on the drawings. Since the operation conditions of this apparatus may vary depending on the type of meat-and-bone meal and animal hair to be treated, the present invention is not limited to the following operation conditions.

  FIG. 1 shows an example of an animal hair sorter according to the present invention. In FIG. 1, a sieving machine 1 receives crushed pork bone powder discharged from a pulverizer (not shown) in a previous process by a hopper A, and, for example, pork bone powder having a size of 2.4 mm or less and pork hair. While moving by the inclination of the net, it is screened by high-speed horizontal rotation. In the present invention, high-speed horizontal rotation requires maintaining a rotation radius of 20 to 200 mm, a rotation speed of 200 to 500 rpm, or a rotation speed of 600 mm / second. Below this condition, some animal hair may pass through the net, and sufficient animal hair separation efficiency cannot be expected. Above this condition, the particle size of the mesh path is reduced and the amount is reduced, which is not practical. In addition, the mechanism is unreasonable and the cost is high. The pork bone meal of the net pass in the sieving machine 1 passes through the discharge port B and is discharged and stored in a raw material tank (not shown) of the feed production line.

  The separation of meat-and-bone meal and animal hair by the sieving machine 1 requires longer time to pass through the net than the shorter one, so if the net is moved horizontally at a speed that matches the range between the time differences, the long animal hair It is presumed that even if the diameter of the bone is smaller than the opening of the meat-and-bone meal, it cannot be passed through and the animal hair remains on the net even if the meat-and-bone meal passes. This has a slight relationship between the horizontal rotation radius and the rotation speed (rotation speed) of the net. According to experiments, when the horizontal rotation radius is 20 to 200 mm, the rotation speed is 200 to 500 rpm, or the rotation speed is 600 mm / second. The above is preferable. In view of the balance of the apparatus, if the rotational speed exceeds 500 rpm, it cannot be put into practical use.

On the other hand, the net-on pork bone meal and pork hair having a size of 2.4 mm or more due to crushing error or secondary agglomeration falls to the wind sorter 3 via the crusher 2. During the movement of the sieve machine 1 and during high-speed horizontal rotation, some of the pork becomes fuzzy, and it becomes difficult to sort only with net-on pork bone powder and wind power. I understand. The wind sorter 3 is provided with a plurality of air intake holes 3a on one side wall and a plurality of air discharge holes 3b on the opposite side, and separates heavy pork bone powder and crushed pork hair by wind power. The air volume is preferably about 10 to 100 m ³ / min, and the wind speed in the wind sorter 3 is preferably 2 to 10 m / sec. Most of the pork bone meal falls down by gravity and is recycled to the grinder via the recycling pipe C. If necessary, it can be taken out of the process and used for fertilizer raw materials and other applications. Partly mixed light pork bone powder, which is lightly mixed, is ejected from the air discharge hole 3 b together with pork hair by the wind force, and is sent to the cyclone 5 through the duct 4. The wind power of the cyclone 5 is appropriately adjusted according to the purpose. The pig hair separated from the air flow by the cyclone 5 and accumulated below is taken out of the process from the outlet D by the rotary valve 6. The air discharged from the cyclone 5 is discharged to the atmosphere from the exhaust port E through the duct 4 a by the suction of the suction fan 7. Since the wind sorter 3, the cyclone 5, and the suction fan 7 are connected by the ducts 4 and 4a, until the air sorter 3a of the wind sorter 3 passes through the cyclone 5 and is discharged from the exhaust port E to the atmosphere. The airflow is all due to the suction of the suction fan 7.

  FIG. 2 shows the details of the sieving machine 1 which is the core of the animal hair sorting machine of the present invention. In FIG. 2, the net 8 of the sieving machine 1 is stretched around the net frame 9. When the amount of processing is small, a punching plate can be used instead of the net 8. The net 8 is preferably a wire net. The wire diameter and mesh size of the mesh cannot be specified because it differs depending on the object to be processed and the product, but for separating and selecting pork bone meal and pork for feed, the wire diameter is 1.1 mmφ and the mesh size is about 4 mm. Is practical. In particular, the wire diameter greatly affects the separation of pig hair, and a range of 0.7 to 1.1 mmφ is preferable. The net frame 9 is supported by four bearing portions 10. This net frame 9 is rotated in the same direction in the direction of the arrow with the same radius of 40 mm, for example, by a mechanism described later. The rotational speed is 200 to 500 rpm, more preferably 200 to 300 rpm. Although four bearing portions 10 are shown, at least three bearing portions are sufficient. Each bearing 10 is provided with a balance weight 11 in the same direction.

  FIG. 3 shows a rotation support structure for the net frame 9. As shown in FIG. 4, the bearing portion 10 of the net frame 9 in FIG. 3 basically includes a crankshaft 12 having a balance weight 11. The upper rotation shaft 13 of the crankshaft 12 is rotatably fitted to the upper bearing case 17 via the upper bearing 15. Similarly, the lower rotating shaft 14 of the crankshaft 12 is rotatably supported by the lower bearing case 18 via the lower bearing 16. Reference numerals 19 and 20 are upper and lower oil seals, and reference numerals 21 and 22 are retaining plates for preventing the crankshaft 12 from coming off. The upper bearing case 17 is attached to a mounting portion 23 fixed to the net frame 9, and the lower bearing case 18 is attached to a frame 24. The rotational driving force is transmitted only to one of the four lower rotating shafts 14. In the present invention, such a configuration causes the mesh frame 9 of the sieving machine 1 to cause horizontal rotational motion in the same direction around the four bearing portions 10.

  FIG. 5 shows the installation structure of the sieve 1. In FIG. 5, the net 8 that circularly moves horizontally is inclined so that the exit of the net-on-product is downward. The inclination angle of the net 8 varies depending on the mesh opening and wire diameter, but is about 1 to 20 degrees, preferably about 2 to 7 degrees. The net 8 is attached to the net frame 25. Preferably, a plurality of balls 26 for preventing clogging are placed in the net frame. A punching plate for holding the rolling balls 26 in the frame is provided below the net frame 25. On the entrance side on the same plane as the net 8, a receiving plate 8a for temporarily receiving pork bone meal is attached. The upper surface of the net 8 is covered with a cover 27. A part of the cover 27 constitutes a guide 27a that guides pork bone powder entering from the entrance of the sieve 1 to the receiving plate 8a. Reference numeral 28 denotes a motor that gives the net 8 a circular motion.

  FIG. 6 illustrates a hairball crusher used in the animal hair sorter of the present invention. The pork bone powder of the sieve on from the sieving machine 1 in FIG. 1 and the pork hair that has become partly pilled pass through the case 29 in FIG. 6 of the crusher 2 with its own weight in the direction of the arrow. In the case 29, four rows of hitting bars 32 are fixed between two disks 31 fixed to the shaft 30. Reference numeral 33 denotes a motor. The hitting bar 32 has a diameter of about 5 to 10 mm, and is rotated by the motor 33 to beat the hairball at a speed of about 2 m to 5 m / sec.

  FIG. 7 shows an example of the wind sorter 3 used in the animal hair sorter of the present invention. The pills of pork that have been unraveled by the crusher 2 fall together with pork bone powder from the top to the wind sorter in the direction of the arrow. The wind sorter 3 is provided with an air intake hole 3a and an air discharge hole 3b as opposed to each other, and a wind with a flow velocity of 2 to 10 m / sec flows in the wind sorter by the suction of the suction fan 7. 3c is a wind guide plate. With this wind force, heavy pork bone powder comes out in the direction of the arrow from below the wind sorter 3 and is recycled to the grinder. On the other hand, the lightly mixed fine pork bone powder and pork hair are sent together with the wind from the air discharge hole 3b to the duct 4 and sent to the cyclone 5 in the next step. For the cyclone 5, a ready-made one is selectively used to collect pig hair.

  In the animal hair sorter of the present invention, meat and bone powder and animal hair can be efficiently separated by the sieve machine 1 that rotates at high speed and horizontal, but a series of sieve machines 1, a crusher 2, a wind sorter 3, a cyclone. By passing 5 through, almost 100% can be separated.

注：本発明装置Ａ
（１）水平篩機（自社製）
（８００×１６００型）×２基
回転半径…４０ｍｍ
動力…２．２ｋｗ×２基
（２）風選別機（ＫＩＣＥ−ＩＮＤＵＳＴＲＩＥＳ社製）
型式…ＭＵＬＴＩ−ＡＳＰＩＲＡＴＯＲ
能力…１．８トン／時
（３）サイクロン（ＫＩＣＥ−ＩＮＤＵＳＴＲＩＥＳ社製）
型式…ＣＫＳ−２４ＬＨ
能力…４５ｍ^３／分
（４）ロータリーバルブ（ＫＩＣＥ−ＩＮＤＵＳＴＲＩＥＳ社製）
型式…ＶＪ１０×８×８
能力…０．４ＫＷ
（５）吸引ファン（ＫＩＣＥ−ＩＮＤＵＳＴＲＩＥＳ社製）
型式…ＦＣ１１Ｗ１２
能力…４５ｍ^３／分；７．５ＫＷ
（６）操作条件
水平篩機回転数…２４０ｒｐｍ
本発明装置Ｂ
（１）使用機器…本発明装置Ａと同一
（２）操作条件
水平篩機回転数…２７０ｒｐｍ
既存篩機
（１）振動篩機（興和工業株式会社製）
型式…ＲＦ１５００−１Ｃ型×２基
動力…３．７ＫＷ×２基 The results of the treatment with the animal hair separation apparatus of the present invention shown in FIG. 1 and the results of the treatment with a normal vibrating sieve having the same mesh are shown in Table 1 regarding the separation efficiency of pig hair. Table 2 shows the amount of pork hair in the product.

Note: Invention device A
(1) Horizontal sieve (made in-house)
(800 × 1600 type) × 2 Rotating radius… 40mm
Power: 2.2kw x 2 units (2) Wind sorter (manufactured by KICE-INDUSTRIES)
Model: MULTI-ASPIRATOR
Capacity: 1.8 tons / hour (3) Cyclone (manufactured by KICE-INDUSTRIES)
Model: CKS-24LH
Capacity: 45m ³ / min (4) Rotary valve (manufactured by KICE-INDUSTRIES)
Model… VJ10 × 8 × 8
Ability: 0.4KW
(5) Suction fan (manufactured by KICE-INDUSTRIES)
Model ... FC11W12
Capacity: 45m ³ / min; 7.5KW
(6) Operating conditions Horizontal sieve rotation speed: 240 rpm
Invention apparatus B
(1) Equipment used: Same as device A of the present invention (2) Operating conditions Horizontal sieve rotation speed: 270 rpm
Existing sieve (1) Vibrating sieve (manufactured by Kowa Industry Co., Ltd.)
Model: RF1500-1C x 2 units Power: 3.7KW x 2 units

  As is clear from Table 1, according to the animal hair sorting apparatus of the present invention, the 9 mesh net pass is 76.8%, but according to the existing vibration sieving machine, 99.235% is obtained with the same mesh sieve. Becomes a sieve pass and the separation efficiency is poor. On the other hand, the meat-and-bone meal and animal hair of the sieve-on are also captured 23.2% in the animal hair sorting apparatus of the present invention, but only 0.765% in the conventional sieving machine. Further, as is apparent from Table 2, the amount of animal hair contained in the actual product is 0.2% or less in the animal hair separation device of the present invention, whereas it is 3.8 in the conventional sieving machine. % Or more.

  In the embodiment of the present invention, separation of pork lump and pork hair, which is mainly a raw material for feed, has been described. In addition to separation of beef, goat, sheep, etc. It can also be widely used for selective separation from particulate matter.

It is a schematic diagram which illustrates the whole animal hair separator of this invention. It is a top view which shows typically the sieve used for the animal hair separator of FIG. FIG. 3 is a lateral side view schematically showing the sieve of FIG. 2 in a partial cross section. FIG. 3 is an enlarged lateral side view schematically showing a support structure of the sieve of FIG. 2. It is a vertical side view which shows typically the installation mechanism of the sieve of FIG. It is a sectional side view which shows typically the hair ball crusher used for the animal hair apparatus of FIG. It is a sectional side view which shows typically the wind sorter used for the animal hair apparatus of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Sieve machine 2 ... Crusher 3 ... Wind sorter 3a ... Air intake hole 3b ... Air exhaust hole 3c ... Guide plate 4 ... Duct 4a ... Duct 5 ... Cyclone 6 ... Rotary valve 7 ... Suction fan 8 ... Net 8a ... Back plate 9 ... Net frame 10 ... Bearing 11 ... Balance weight 12 ... Crankshaft 13 ... Upper rotary shaft 14 ... Lower rotary shaft 15 ... Upper bearing 16 ... Lower bearing 17 ... Upper bearing case 18 ... Lower bearing case 19 ... Upper oil seal 20 ... Lower oil seal 21 ... Upper retainer plate 22 ... Lower retainer plate 23 ... Mounting portion 24 ... Base 25 ... Net frame 26 ... Clogging prevention ball 27 ... Cover 27a ... Guide 28 ... Drive motor 29 ... Case 30 ... Shaft 31 ... Rotary plate 32 ... Hitting bar 33 ... Motor A ... Hopper B ... Sieve pass waste Outlet E ...... exhaust port of the mouth C ...... recycling tube D ...... hog

Claims (4)

An apparatus for separating animal hair from crushed meat-and-bone meal, having a mesh with a horizontal rotation radius of 20 to 200 mm, a rotation speed of 200 to 500 rpm, or a rotation speed of 600 mm / second or more, and having a constant size. An animal hair separating apparatus comprising a sieve that passes the mesh and turns on the meat and bone mass and animal hair. The animal hair separation device according to claim 1, wherein the wire diameter of the net is 0.2 to 3 mmφ and the mesh opening is 2 to 10 mm. 2. The animal hair separator according to claim 1, wherein the sieving machine is inclined downward in the traveling direction of the material to be sieved. A device that separates animal hair from crushed meat-and-bone meal, which has a net that is slanted so that the crushed material travels in a certain direction at a constant speed, and rotates at high speed horizontally. A screener that uses more meat-and-bone meal and animal hair as a net, a crusher that crushes the animal hair that is turned into a net-on, and a wind sorter that separates meat-and-bone meal and animal hair by airflow. And an animal hair separating device comprising a cyclone for removing the selected animal hair.

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