Raw material crushing device capable of preventing uneven granularity of aquatic feed

Abstract

The utility model relates to the field of aquatic feed, in particular to a raw material crushing device capable of preventing uneven granularity of aquatic feed, which comprises a crushing box and a spiral conveying mechanism mounted on one side of the crushing box, a feed hopper is mounted at the top of the crushing box, a discharge pipe orifice is mounted at the bottom of the crushing box, and a receiving box is placed below the discharge pipe orifice. The crushing device is characterized in that a crushing assembly and two filtering assemblies arranged in a spaced mode are sequentially installed in the crushing box body from top to bottom, and the crushing device further comprises a driving mechanism for driving the filtering assemblies to shake. After the raw materials are screened by the top arc-shaped filter plate, the large-particle raw materials are conveyed to the feeding end of the spiral conveyor through the material guide opening, the spiral conveyor conveys the large-particle raw materials to the position above the smashing assembly, the large-particle raw materials are smashed again in cooperation with the smashing assembly, and the smashing efficiency is improved; and then the preliminarily screened raw materials are screened again in cooperation with an arc-shaped filter screen at the bottom, so that graded screening is achieved, and the particle size uniformity during aquatic feed granulation is improved.

Description

Technical Field

[0001] The utility model relates to the field of aquatic feed, in particular to a raw material crushing device for preventing uneven particle size of aquatic feed. Background Art

[0002] Aquatic feed refers to bait specially provided for aquatic animal farming. It is an indispensable part of the aquaculture industry and is used to meet the nutritional needs of aquatic animals for growth, development and maintenance of life activities.

[0003] According to different classification methods, there are many types of aquatic feed. According to the processing form, it can be divided into powdered feed, soft pellet feed, hard pellet feed and puffed feed; according to the breeding stage, it can be divided into fry crushed feed, rearing feed and adult fish feed; according to the breeding type, it can be divided into carp feed, grass carp feed, shrimp feed, etc.; according to the physical properties of the feed, it can be divided into sinking feed and floating feed; in addition, the raw materials for aquatic feed production are mainly composed of fish meal, grain raw materials and oils, which often account for more than 50% of the feed cost. In order to enhance the palatability and nutritional value of the feed, enzymes and trace elements are also added.

[0004] Particle size is one of the important physical properties of aquatic feed, which will directly affect the stability of feed in water and the feeding effect of aquatic animals. During the physical processing process, if the crushing, screening and other steps are not performed properly, it may lead to uneven feed particle size, appearing too coarse or too fine. Too coarse feed is not easily digested and absorbed by aquatic animals, while too fine feed is easy to disperse in water, reducing the utilization rate of feed.

[0005] With respect to the above-mentioned related technologies, the inventors found that due to the different physical properties of the raw materials such as hardness, brittleness and toughness, the raw material particles crushed are also different. The traditional crushing device directly crushes the raw materials and classifies them with external screening equipment. It is impossible to directly classify the crushed raw materials, and it is not convenient to crush large particles of raw materials again, which not only affects the crushing efficiency, but also causes uneven particle size when the feed is pelletized. Utility Model Content

[0006] The main technical problem solved by the utility model is to provide a raw material crushing device for preventing uneven particle size of aquatic feed, so as to facilitate classification of crushed raw materials and crush large particles of raw materials again, thereby improving crushing efficiency and uniformity of aquatic feed particle size.

[0007] In order to solve the above technical problems, a technical solution adopted by the utility model is: to provide a raw material crushing device for preventing uneven particle size of aquatic feed, comprising: a crushing box and a spiral feeding mechanism installed on one side thereof, a feeding hopper is installed on the top of the crushing box, a discharge pipe is installed on the bottom, and a material receiving box is placed below the discharge pipe. It is characterized in that a crushing assembly and two filter assemblies arranged at intervals are sequentially installed in the crushing box from top to bottom, and a driving mechanism for driving the filter assembly to shake is also included;

[0008] The filter assembly comprises an arc-shaped guide inclined plate and an inclined arc-shaped filter plate, wherein a lower end of the arc-shaped guide inclined plate is arranged close to a higher end of the arc-shaped filter plate, and both sides of the arc-shaped guide inclined plate are connected to the inner wall of the crushing box, and both sides of the arc-shaped filter plate are respectively connected to the inner wall of the crushing box to form a clearance gap, and both sides of the arc-shaped filter plate are respectively connected to no less than two limit rods penetrating the crushing box, and the limit rods are respectively provided with springs, and one end of the spring is respectively connected to the crushing box, and the other end is respectively connected to the limit rod;

[0009] A material guide port is provided at the lower end of the arc filter plate at the top, and the material guide port is connected to the spiral feeding mechanism. A discharge hopper is provided at the lower end of the arc filter plate at the bottom, and the filter holes of the arc filter plate at the top are larger than the filter holes of the arc filter plate at the bottom.

[0010] By adopting the above technical scheme, the raw materials entering the feed hopper are crushed by the crushing assembly and then transferred to the higher end of the arc-shaped filter plate according to the arc-shaped guide inclined plate, thereby improving the time for screening the raw materials after crushing. At the same time, the driving mechanism drives the arc-shaped filter plate to shake left and right, which can prevent the crushed raw materials from clogging the filter holes and improve the screening efficiency of the raw materials. In addition, the screened raw materials continue to be screened through the arc-shaped filter plate below to achieve graded screening, and the large-particle-size raw materials screened out are transported to the crushing assembly again for crushing under the action of the spiral feeding mechanism, so as to improve the particle size uniformity during the granulation of aquatic feed.

[0011] In a preferred example, the utility model can be further configured as follows: the driving mechanism includes a U-shaped rod and a movable opening opened on the closed end thereof, the two ends of the U-shaped rod are respectively connected to one side of the arc-shaped filter plate, a movable wheel is rotatably connected in the movable opening, one side of the crushing box is connected to a support seat, a motor 1 is installed on the support seat, an eccentric wheel is connected to the output shaft of the motor 1, and the outer circle of the eccentric wheel is always in contact with the outer circle of the movable wheel.

[0012] By adopting the above technical solution, when the motor drives the eccentric wheel to rotate, it pushes the U-shaped rod to move forward and backward, so that the arc filter plate shakes left and right, which can not only prevent the raw materials from clogging the filter holes, but also improve the screening efficiency. At the same time, the movable wheel is always in contact with the eccentric wheel, and the eccentric wheel drives the movable wheel to rotate, reducing the friction between the two to ensure that the arc filter plate is in a stable state.

[0013] In a preferred example, the utility model can be further configured as follows: the crushing assembly includes a crushing hammer rod and a plurality of movable knives connected at intervals on its outer circle, mounting seats are respectively connected to the inner wall of the crushing box body, a plurality of fixed knives are respectively connected to the mounting seats at intervals, the fixed knives and movable knives are respectively arranged alternately, and also includes a second motor installed on the outer side of the crushing box body, and the output shaft of the second motor is connected to the crushing hammer rod.

[0014] By adopting the above technical solution, the second motor drives the crushing hammer rod and the moving knife to rotate, so that the moving knife and the fixed knife rotate crosswise with each other, and the two crush the raw materials in different areas, thereby improving the uniformity of raw material crushing.

[0015] In a preferred example, the utility model can be further configured as follows: the spiral feed mechanism includes a mounting frame, a spiral feeder is mounted on the mounting frame, the feed end of the spiral feeder is connected to the guide port, and the discharge end of the spiral feeder is located above the crushing component and extends into the crushing box.

[0016] By adopting the above technical solution, the arc filter plate transmits the filtered large-particle raw materials to the feed end of the screw feeder through the material guide port, so that the screw feeder transmits the large-particle raw materials to the top of the crushing component, and cooperates with the crushing component to crush the large-particle raw materials again, thereby improving the crushing efficiency.

[0017] In a preferred example, the utility model can be further configured as follows: the discharge hopper is arranged to be inclined downward.

[0018] By adopting the above technical solution, after being screened by the lowest arc-shaped filter plate, part of the raw materials are transmitted to the outside of the crushing box through the discharge hopper and collected with external bags and other container equipment, and the other part of the raw materials are collected along the discharge pipe to achieve graded screening.

[0019] In a preferred example, the present invention can be further configured as follows: the bottom of the crushing box is conical.

[0020] By adopting the above technical solution, the screened raw materials fall to the bottom of the crushing box. Since the bottom is conical and has a certain inclination, the raw materials slide along the inclined edge to the discharge pipe and the receiving box, preventing the raw materials from sticking to the bottom of the inner cavity of the crushing box.

[0021] In summary, the utility model includes at least one of the following beneficial technical effects of the raw material crushing device for preventing uneven particle size of aquatic feed:

[0022] 1. After the raw materials are crushed by the crushing assembly, they are transferred to the higher end of the arc-shaped filter plate through the arc-shaped guide inclined plate, which increases the time for screening the raw materials after crushing. At the same time, the driving mechanism drives the arc-shaped filter plate to shake left and right, which can prevent the crushed raw materials from clogging the filter holes and improve the screening efficiency of the raw materials.

[0023] 2. After being screened by the top arc filter plate, the large-particle raw materials are transmitted to the feed end of the screw feeder through the feed guide port, so that the screw feeder transmits the large-particle raw materials to the top of the crushing component, and cooperates with the crushing component to crush the large-particle raw materials again to improve the crushing efficiency. Then, the arc filter at the bottom is used to screen the raw materials after the preliminary screening again, thereby realizing graded screening to improve the particle size uniformity during aquatic feed pelleting. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work, among which:

[0025] Figure 1 It is a structural schematic diagram of the utility model;

[0026] Figure 2 for Figure 1 A front view of

[0027] Figure 3 for Figure 1 A partial cross-sectional view of

[0028] Figure 4 This is a schematic diagram of the structure of the filter assembly of the utility model;

[0029] Figure 5 It is a structural schematic diagram of the driving mechanism of the utility model;

[0030] Figure 6 It is a structural schematic diagram of the crushing component of the utility model.

[0031] In the figure: 1, crushing box; 20, spiral feeding mechanism; 3, feed hopper; 4, discharge pipe; 5, receiving box; 60, crushing component; 70, filtering component; 80, driving mechanism; 9, guide port; 11, discharge hopper;

[0032] 21. Mounting frame; 22. Screw feeder;

[0033] 61. crushing hammer rod; 62. moving knife; 63. mounting seat; 64. fixed knife; 65. motor 2;

[0034] 71. arc-shaped flow guide inclined plate; 72. arc-shaped filter plate; 73. limit rod; 74. spring;

[0035] 81. U-shaped rod; 82. movable opening; 83. movable wheel; 84. supporting seat; 85. motor 1; 86. eccentric wheel. DETAILED DESCRIPTION

[0036] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0037] It should be noted that these drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0038] Reference Figure 1-6, which is a raw material crushing device for preventing uneven particle size of aquatic feed disclosed by the utility model, comprising: a crushing box 1 and a spiral feeding mechanism 20 installed on one side thereof, a feeding hopper 3 is installed on the top of the crushing box 1, a discharge pipe 4 is installed on the bottom, a receiving box 5 is placed below the discharge pipe 4, the bottom of the crushing box 1 is conical, a crushing assembly 60 and two filter assemblies 70 arranged at intervals are sequentially installed in the crushing box 1 from top to bottom, and a driving mechanism 80 for driving the filter assembly 70 to shake, the filter assembly 70 comprises an arc-shaped guide inclined plate 71 and an arc-shaped filter plate 72 arranged obliquely, the arc-shaped guide inclined plate 71 The lower end is arranged close to the higher end of the arc filter plate 72, the two sides of the arc guide inclined plate 71 are connected to the inner wall of the crushing box 1, the two sides of the arc filter plate 72 are respectively connected to the inner wall of the crushing box 1 to form a clearance, the two sides of the arc filter plate 72 are respectively connected to no less than two limit rods 73 which are arranged on the crushing box 1, the limit rods 73 are respectively provided with springs 74, one end of the spring 74 is respectively connected to the crushing box 1, and the other end is respectively connected to the limit rod 73, the lower end of the top arc filter plate 72 is provided with a guide port 9, the guide port 9 is connected to the screw feeding mechanism 20, and the screw feeding mechanism The structure 20 includes a mounting frame 21, on which a screw feeder 22 is mounted. The feed end of the screw feeder 22 is connected to the guide port 9, and the discharge end of the screw feeder 22 is located above the crushing assembly 60 and extends into the crushing box 1. A discharge hopper 11 is provided at the lower end of the arc-shaped filter plate 72 at the bottom, and the discharge hopper 11 is tilted downward. The filter holes of the top arc-shaped filter plate 72 are larger than the filter holes of the bottom arc-shaped filter plate 72; preferably, there are four limit rods 73, which are symmetrically mounted on two of the arc-shaped filter plates 72. After the crushing assembly 60 crushes the raw materials, the arc-shaped guide inclined plate 71 transfers the raw materials to the arc-shaped filter plate The higher end of 72 allows the raw materials to be screened downward along its inclination angle in sequence, thereby improving the screening time, and through the cooperation of the driving mechanism 80 and the spring 74, the arc filter plate 72 is shaken left and right, which can prevent the broken raw materials from clogging the filter holes and improve the screening efficiency of the raw materials. At the same time, the large-particle raw materials are transmitted to the spiral feeding mechanism 20, so that it transports the large-particle raw materials to the crushing assembly 60 for crushing again to improve the crushing effect, and the raw materials screened step by step downward are again screened and graded through the cooperation of the arc guide inclined plate 71 and the arc filter plate 72, thereby improving the particle size uniformity of the aquatic feed pelletizing.

[0039] The driving mechanism 80 includes a U-shaped rod 81 and a movable opening 82 opened on the closed end thereof, the two ends of the U-shaped rod 81 are respectively connected to one side of the arc-shaped filter plate 72, a movable wheel 83 is rotatably connected in the movable opening 82, one side of the crushing box 1 is connected to a support seat 84, a motor 85 is installed on the support seat 84, an eccentric wheel 86 is connected to the output shaft of the motor 85, and the outer circle of the eccentric wheel 86 is always in contact with the outer circle of the movable wheel 83; the motor 85 adopts a servo motor, the motor 85 drives the eccentric wheel 86 to rotate and drives the movable wheel 83 to rotate synchronously, while reducing the friction between the two, it also pushes the U-shaped rod 81 to move back and forth, so that the arc-shaped filter plate 72 shakes left and right, which can prevent the raw materials from clogging the filter holes and improve the screening efficiency.

[0040] The crushing assembly 60 includes a crushing hammer rod 61 and a plurality of movable knives 62 connected at intervals on its outer circle. Mounting seats 63 are respectively connected to the inner wall of the crushing box 1. A plurality of fixed knives 64 are respectively connected to the mounting seats 63 at intervals. The fixed knives 64 and the movable knives 62 are respectively arranged alternately. The crushing assembly 60 also includes a second motor 65 installed on the outer side of the crushing box 1. The output shaft of the second motor 65 is connected to the crushing hammer rod 61. The second motor 65 is preferably a servo motor. When the second motor 65 drives the crushing hammer rod 61 to rotate, it drives the movable knife 62 to rotate in the gap between the fixed knives 64. The two crush each other in the gap between them, so that the raw materials in different areas can be crushed, thereby improving the uniformity of the raw materials after crushing.

[0041] The implementation principle of this embodiment is as follows: when in use, the staff puts the raw materials into the crushing box 1 along the feed hopper 3, and at this time, the motor 2 65 drives the crushing hammer rod 61 to rotate, so that the movable knife 62 and the fixed knife 64 cooperate with each other to crush the raw materials, and the crushed raw materials fall to the arc-shaped guide inclined plate 71, and are transferred to the higher end of the arc-shaped filter plate 72 along its inclination angle, so that the raw materials are screened downward along the inclination angle of the arc-shaped filter plate 72 in sequence, and at the same time, the motor 1 85 drives the eccentric wheel 86 to rotate and drive the movable wheel 83 to rotate synchronously, and also pushes the U-shaped rod 81 to move back and forth, so that the arc-shaped filter plate 72 shakes left and right, which can prevent the broken raw materials from clogging the filter holes and improve the screening efficiency of the raw materials, and the large screened The granular raw materials are transmitted to the screw feeder 22 through the guide port 9, so that the screw feeder 22 transmits the large-particle raw materials to the crushing box 1, and cooperates with the crushing component 60 to crush the large-particle raw materials again to improve the crushing efficiency, and transmits them to the screw feeding mechanism 20, so that it transports the large-particle raw materials to the crushing component 60 for crushing again to improve the crushing effect, and the raw materials screened step by step downward are screened and graded again through the cooperation of the arc-shaped guide inclined plate 71 and the arc-shaped filter plate 72. Part of the raw materials are transmitted to the outside of the crushing box 1 through the discharge hopper 11 and collected with container equipment such as external bags. The other part of the raw materials are transported to the receiving box 5 along the discharge pipe port 4 for collection to achieve graded screening.

[0042] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A raw material crushing device for preventing uneven particle size of aquatic feed, comprising: A crushing box (1) and a spiral feeding mechanism (20) installed on one side thereof, wherein a feeding hopper (3) is installed on the top of the crushing box (1), and a discharge pipe (4) is installed on the bottom, and a receiving box (5) is placed below the discharge pipe (4), characterized in that a crushing assembly (60) and two filter assemblies (70) arranged at intervals are installed in sequence from top to bottom in the crushing box (1), and also includes a driving mechanism (80) for driving the filter assembly (70) to vibrate; The filter assembly (70) comprises an arc-shaped guide inclined plate (71) and an inclined arc-shaped filter plate (72), wherein the lower end of the arc-shaped guide inclined plate (71) is arranged close to the higher end of the arc-shaped filter plate (72), the two sides of the arc-shaped guide inclined plate (71) are connected to the inner wall of the crushing box (1), the two sides of the arc-shaped filter plate (72) are respectively connected to the inner wall of the crushing box (1) to form a clearance, the two sides of the arc-shaped filter plate (72) are respectively connected to at least two limit rods (73) penetrating the crushing box (1), the limit rods (73) are respectively provided with springs (74), one end of the spring (74) is respectively in contact with the crushing box (1), and the other end is respectively in contact with the limit rod (73); A material guide port (9) is provided at the lower end of the arc-shaped filter plate (72) at the top, and the material guide port (9) is connected to a spiral feeding mechanism (20). A material discharge hopper (11) is provided at the lower end of the arc-shaped filter plate (72) at the bottom, and the filter holes of the arc-shaped filter plate (72) at the top are larger than the filter holes of the arc-shaped filter plate (72) at the bottom.

2. A raw material crushing device for preventing uneven particle size of aquatic feed according to claim 1, characterized in that: The driving mechanism (80) comprises a U-shaped rod (81) and a movable opening (82) opened on the closed end thereof, the two ends of the U-shaped rod (81) are respectively connected to one side of the arc-shaped filter plate (72), a movable wheel (83) is rotatably connected in the movable opening (82), one side of the crushing box (1) is connected to a support seat (84), a motor (85) is mounted on the support seat (84), an eccentric wheel (86) is connected to the output shaft of the motor (85), and the outer circle of the eccentric wheel (86) is always in contact with the outer circle of the movable wheel (83).

3. The raw material crushing device for preventing uneven particle size of aquatic feed according to claim 1, characterized in that: The crushing assembly (60) comprises a crushing hammer rod (61) and a plurality of movable knives (62) connected at intervals on the outer circle thereof; mounting seats (63) are respectively connected to the inner walls of the crushing box (1); a plurality of fixed knives (64) are respectively connected to the mounting seats (63); the fixed knives (64) and the movable knives (62) are respectively arranged in an alternating manner; and a second motor (65) is also included which is mounted on the outer side of the crushing box (1); the output shaft of the second motor (65) is connected to the crushing hammer rod (61).

4. The raw material crushing device for preventing uneven particle size of aquatic feed according to claim 1, characterized in that: The screw feed mechanism (20) comprises a mounting frame (21), a screw feeder (22) is mounted on the mounting frame (21), a feed end of the screw feeder (22) is connected to a material guide port (9), and a discharge end of the screw feeder (22) is located above the pulverizing assembly (60) and extends into the pulverizing box (1).

5. The raw material crushing device for preventing uneven particle size of aquatic feed according to claim 1, characterized in that: The discharge hopper (11) is arranged to be inclined downward.

6. The raw material crushing device for preventing uneven particle size of aquatic feed according to claim 1, characterized in that: The bottom of the crushing box (1) is conical.

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