Feed raw material impurity screening device

Abstract

The utility model relates to a feed raw material impurity screening device, which comprises a case with a front opening, the top of the case is butted with a feed hopper, the bottom of the case is provided with a discharge port, and the feed raw material impurity screening device is characterized in that an impurity screening component is arranged in the case, and an air inlet and an air outlet are arranged on the side wall of the case; the impurity screening assembly comprises a grading cavity, the grading cavity communicates with the feeding hopper through a feeding pipeline, a discharging opening is formed in the bottom of the grading cavity, and the discharging opening and the discharging opening are aligned and communicate; an airflow inlet and an impurity outlet are formed in the side wall of the grading cavity, the airflow inlet communicates with the air inlet, the impurity outlet communicates with the air outlet, the air inlet is in butt joint with a fan, and the air outlet is in butt joint with a dust collection bag; the dust collection device has the advantages of being relatively simple in structure, capable of collecting dust and relatively environmentally friendly.

Description

Technical Field

[0001] This utility model belongs to the field of feed production technology, specifically a feed raw material impurity screening device. Background Technology

[0002] Impurities in feed can have adverse effects on animal health, production performance, and the environment. Therefore, in order to improve feed quality and ensure animal health, it is necessary to screen out impurities in feed during feed production.

[0003] In the prior art, a feed raw material impurity screening device is disclosed, with document number CN 118874680A. It includes a screening box and a feeding hopper. The screening box has a magnetic separation mechanism and multiple screening mechanisms arranged from top to bottom. An ultrasonic vibrator is fixedly installed on the lower surface of each screening mechanism. A high-pressure blower mechanism and a discharge hopper are fixedly installed on the inner wall of the screening box below each screening mechanism. The screening mechanism includes a screen frame, a screen, a shaft, a reciprocating telescopic rod, a T-shaped frame and multiple springs. The end of the screen frame away from the spring is rotatably connected to the inner wall of the screening box through the shaft. The high-pressure blower mechanism includes a horizontal air duct, a high-pressure blower and a longitudinal pipe frame. The horizontal air duct is rotatably connected to the longitudinal pipe frame.

[0004] However, the above-mentioned scheme is complex in structure, and when removing impurities from feed raw materials, the horizontal and vertical air ducts can easily blow up the dust and dirt in the raw materials and discharge them into the air through the drain outlet, which can easily cause dust pollution and affect the working environment. Utility Model Content

[0005] To address the aforementioned problems, this utility model provides a feed ingredient impurity screening device with a relatively simple structure that can process dust and powder in feed.

[0006] To achieve the above objectives, the technical solution of this utility model is: a feed raw material impurity screening device, including a chassis with a front door, a feed hopper connected to the top of the chassis, a discharge port at the bottom of the chassis, an impurity screening component inside the chassis, and an air inlet and an air outlet on the side wall of the chassis.

[0007] The impurity screening component includes a grading hood, the interior space of which is a grading chamber. The grading chamber is connected to the feed hopper via a feeding pipe, and an airflow dispersion device is installed inside the grading chamber.

[0008] The grading chamber has an airflow inlet and an impurity outlet on its side wall. The horizontal height of the impurity outlet is greater than that of the airflow inlet. The airflow inlet is connected to the air inlet, and the impurity outlet is connected to the air outlet. The air inlet is connected to a fan, and the air outlet is connected to a dust collection bag. The airflow flows to the impurity outlet after passing through the airflow dispersion device.

[0009] Furthermore, the feed pipe includes a "U"-shaped pipe and two vertical pipes, both of which are connected to the free end of the "U"-shaped pipe. One of the vertical pipes is connected to the feed hopper, and the other vertical pipe is located inside the grading chamber.

[0010] Furthermore, the airflow dispersion device includes a diffuser plate and a connecting plate, with the diffuser plate connected to the connecting plate and arranged along the length of the connecting plate.

[0011] Furthermore, a feed distribution component is also installed inside the grading chamber, through which the feed passes as it falls into the grading chamber.

[0012] Furthermore, the material distribution component includes a connecting shaft connected to the inner wall of the casing, and several stirring blades are provided on the connecting shaft, with the stirring blades arranged in a ring array around the central axis of the connecting shaft.

[0013] Furthermore, the stirring blades are made of magnetic sheets, which can adsorb iron filings in the feed during rotation.

[0014] Compared with the prior art, the beneficial effects of this utility model are: this device is equipped with an impurity screening component, the feed and light impurities in the feed will be separated under the action of rising airflow, the feed will be discharged from the discharge port under the action of gravity, and the impurities, due to their light density, will be carried by the rising airflow to the air outlet and discharged and finally collected in the dust collection bag. The stirring blades can adsorb iron filings in the feed during the rotation process. The structure is simple, but at the same time it can effectively remove impurities.

[0015] In addition, dust and other impurities are collected in dust collection bags to prevent them from being released into the air and damaging the environment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the main cross-sectional structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the main structure of the airflow dispersion device of this utility model;

[0019] Figure 4 This is a side view of the material distribution component of this utility model;

[0020] Figure 5 This is a schematic diagram of the main structure of the feed pipe of this utility model;

[0021] In the diagram, 1-front door, 2-chassis, 3-bottom support column, 4-observation window, 5-feed hopper, 6-feeding pipe, 7-discharge port, 8-grading chamber, 9-air inlet pipe, 10-fan, 11-dust collection bag, 12-air outlet pipe, 13-support arm, 14-diffuser plate, 15-connecting plate, 16-material distribution assembly, 17-rotating shaft, 18-drive motor, 19-support plate, 20-mixing blade, 21-support arm, 22-diverter plate, 23-U-shaped pipe, 24-bend, 25-guide plate, 26-screening plate.

[0022] Specific implementation party

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. It should be understood that the preferred embodiments described herein are only for illustration and explanation of the present utility model and are not intended to limit the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The components of the embodiments of the present utility model described and shown in the accompanying drawings can be arranged and designed in various different configurations. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model. In the embodiments, the components of the embodiments of the present application described and shown in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the present application.

[0024] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," "front," and "rear," etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to an electrical connection; they can refer to a hydraulic connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0026] See Figure 1 and Figure 2 As shown, a feed raw material impurity screening device includes a casing 2 with a front door 1, a bottom support column 3 connected to the bottom of the casing 2, an observation window 4 on the front door 1 of the casing 2, a feed hopper 5 connected to the top of the casing 2, a feeding pipe 6 connected to the feed hopper 5, a discharge port 7 at the bottom of the casing 2, a storage box connected to the discharge port 7, and an impurity screening component installed inside the casing 2. The impurity screening component can screen the feed and remove the impurities inside. The feed with the impurities removed is finally discharged from the discharge port 7 to the outside of the casing 2 and finally collected in the storage box.

[0027] An air inlet and an air outlet are provided on the side wall of the casing 2. The impurity screening assembly includes a grading hood 8, which is a square shell with a large internal space called the grading chamber. The grading hood 8 is located inside the casing 2 and is connected to the inner wall of the casing 2 via a support arm 21. The grading hood 8 sits on the bottom surface of the casing 2. The aforementioned feeding pipe 6 extends into the grading chamber, which is connected to the discharge port 7. An airflow inlet is provided on the lower side wall of the grading hood 8, and the airflow inlet is connected to the air inlet via an air inlet pipe 9. A fan 10 is connected to the air inlet. An impurity outlet is provided on the upper side wall of the grading hood. The horizontal height of the impurity outlet is greater than that of the airflow inlet. A diverter plate 22 is provided at the impurity outlet. The impurity outlet and the air outlet are connected by an air outlet pipe 12, and the air outlet is connected to a dust collection bag 11. When the fan 10 is working, the airflow enters the grading chamber from the airflow inlet and rises in the grading chamber, and is finally discharged from the impurity outlet. During this process, the rising airflow carries the lighter impurities to the air outlet for discharge, while the heavier feed particles sink to the bottom of the grading chamber under the action of gravity and are discharged from the discharge port.

[0028] To prevent rising airflow from affecting feed feeding, the feed pipe includes a U-shaped pipe and two bends. Both free ends of the U-shaped pipe are connected to bends, and the free ends of the two bends are vertical. The two bends have different specifications. One bend is connected to the feed hopper 5, and the free end of the other bend passes through the fan cover 8 and is located in the grading chamber. An airflow dispersion device is also connected in the grading chamber. The airflow dispersion device can also reduce the impact of rising airflow on feed feeding.

[0029] See Figure 3As shown, the airflow dispersion device is located directly above the discharge port and is connected to the inner wall of the grading hood 8 via the support arm 13. The airflow dispersion device includes a diffuser plate 14 and a connecting plate 15. The diffuser plate 14 is an arc-shaped thin plate structure. The diffuser plate 14 is connected to the connecting plate 15. There are several diffuser plates 14, which are arranged along the length of the connecting plate 15. The diffuser plate 14 is an arc-shaped plate with a material passage hole. A diffusion channel is formed between the several diffuser plates 14. After passing through the diffusion channel, the airflow flows to the impurity outlet. One end of the support arm 13 is connected to the connecting plate 15. The airflow dispersion device can also guide the movement direction of some airflow and feed particles, so that the airflow is discharged from the air outlet after being guided by the airflow dispersion device, thereby optimizing the airflow field distribution in the grading chamber, enhancing the grading effect, and improving the separation efficiency of impurities and feed.

[0030] See Figure 4 As shown, to ensure uniform feeding of the feed entering the grading chamber, a feeding assembly 16 is also provided inside the casing 2. The feeding assembly 16 is located within the grading chamber and includes a rotating shaft 17 connected to the inner wall of the grading hood 8. The rotating shaft 17 is horizontal, and one end of the rotating shaft 17 is connected to a drive motor 18. The drive motor 18 is a low-speed, low-power motor and is mounted on a support plate 19. The support plate 19 is located within the space between the grading hood 8 and the casing 2, and is fixedly connected to the inner wall of the casing 2. Several stirring blades 20 are provided on the rotating shaft 17. Each stirring blade... The blades 20 extend in a rectangular shape along the length of the rotating shaft 17. Several stirring blades 20 are arranged in a circular array around the central axis of the rotating shaft 17. Each blade 20 has holes. When the drive motor 18 is working, it can drive the stirring blades 20 to rotate, thereby stirring the feed entering the grading chamber from the feed hopper 5, so that the feed entering the grading chamber can fall more stably and evenly, avoiding feeding too fast or falling unevenly, which would result in poor screening effect. In addition, the stirring blades 20 are made of magnetic sheets, and the stirring blades 20 can adsorb iron filings in the feed during rotation.

[0031] To enhance the processing effect on falling feed, the mixing blades 20 may also be provided with raised textures or other protruding structures to increase the contact area with the feed.

[0032] In addition, a guide plate 25 is provided in the grading chamber. The guide plate 25 is an arc-shaped plate, and the upper end of the guide plate 25 is fixed to the inner wall of the grading cover. The lower end of the guide plate 25 is connected to a screening plate 26, and the lower end of the screening plate 26 is connected to the bottom of the machine box. The screening plate 26 is provided with screen holes. The screening plate 26 is located above the discharge port 7, and the airflow dispersion device is located above the screening plate 26. After the feed enters the grading chamber from the feed hopper, it is first divided by the distribution component 16. Then, some of the feed passes through the airflow dispersion device. At this time, the airflow entering from the air inlet will enter the dispersion channel. The airflow in the dispersion channel comes into contact with the feed. When the feed passes through the bottom diffuser plate, the feed will be screened again by the screening plate.

[0033] When using the above-mentioned feed raw material impurity screening device, first connect the air outlet to the dust collection bag 11, and connect the storage box to the discharge port 7. Then turn on the fan 10, and an upward airflow is generated in the grading chamber. Then slowly pour the feed into the device from the discharge hopper. The device starts to work. After the impurities are removed, they can be fed more evenly after passing through the material distribution component 16. Since there is a difference in density between the feed and the impurities in the feed, the feed and the impurities in the feed are separated under the action of the upward airflow. Impurities with lower density are more easily carried upward or suspended by the airflow, while feed particles with higher density are more easily sagged under the action of gravity. This utility model is suitable for feeds with higher density, such as corn and soybeans.

[0034] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be primarily defined by the scope of the claims.

Claims

1. A feed ingredient impurity screening device, comprising a casing with a front-opening door, a feed hopper connected to the top of the casing, and a discharge port at the bottom of the casing, characterized in that: The aforementioned chassis is equipped with an impurity screening component, and an air inlet and an air outlet are provided on the side wall of the chassis; The impurity screening component includes a grading hood, the interior space of which is a grading chamber. The grading chamber is connected to the feed hopper via a feeding pipe, and an airflow dispersion device is installed inside the grading chamber. The grading chamber has an airflow inlet and an impurity outlet on its side wall. The horizontal height of the impurity outlet is greater than that of the airflow inlet. The airflow inlet is connected to the air inlet, and the impurity outlet is connected to the air outlet. The air inlet is connected to a fan, and the air outlet is connected to a dust collection bag. The airflow flows to the impurity outlet after passing through the airflow dispersion device.

2. The feed ingredient impurity screening device according to claim 1, characterized in that: The feed pipe includes a "U"-shaped pipe and two vertical pipes. Both vertical pipes are connected to the free end of the "U"-shaped pipe. One vertical pipe is connected to the feed hopper, and the other vertical pipe is located inside the grading chamber.

3. The feed ingredient impurity screening device according to claim 1, characterized in that: The airflow dispersion device includes a diffuser plate and a connecting plate, with the diffuser plate connected to the connecting plate and arranged along the length of the connecting plate.

4. The feed ingredient impurity screening device according to claim 3, characterized in that: The diffuser plate is provided with a discharge port, and a diffuser channel is formed between two adjacent diffuser plates, through which the airflow passes.

5. The feed ingredient impurity screening device according to claim 1, characterized in that: The grading chamber is also equipped with a feed distribution component, which passes through the feed as it falls into the grading chamber.

6. The feed ingredient impurity screening device according to claim 5, characterized in that: The material distribution component includes a connecting shaft connected to the inner wall of the casing, and a plurality of stirring blades are provided on the connecting shaft, with the plurality of stirring blades arranged in a ring array around the central axis of the connecting shaft.

7. The feed ingredient impurity screening device according to claim 6, characterized in that: The stirring blades are made of magnetic sheets, and during rotation, they can attract iron filings from the feed.

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