Screening device for biological raw materials

Abstract

The utility model relates to the technical field of biological raw material production equipment, and particularly discloses a biological raw material screening device which comprises a screening box body and a metal filter screen fixedly arranged on the screening box body, the scattering assembly is used for scattering the biological raw materials on the metal filter screen; and the impacting assembly is used for impacting the bottom of the metal filter screen to prevent filter holes from being blocked. According to the screening device for the biological raw materials, firstly, the raw materials are stably conveyed to the metal filter screen from the discharging end of the conveying shell through the feeding assembly, it is avoided that the crushed raw materials are directly added from the top of the screening device, raw material accumulation is caused, and screening is affected; the crushed raw materials on the surface of the metal filter screen are scattered and dispersed through the rotating brush plate, and the impact balls repeatedly impact the metal filter screen under the linkage effect, so that the metal filter screen achieves the vibration effect, and the problem that filter holes of the metal filter screen are blocked can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of biological raw material production equipment, in particular to a biological raw material screening device. Background Art

[0002] Biochemical engineering is an interdisciplinary subject consisting of multiple disciplines such as biology, chemistry, and engineering. It studies the basic theories and engineering technologies in processes involving organisms or bioactive substances. It is an important branch of the first-level discipline "Chemical Engineering and Technology" and a key second-level discipline for development. It plays a key role in the industrialization of biotechnology. The production of biological raw materials requires the raw materials to be crushed and then screened in order to produce raw material powder that meets the standards. The screening of the raw materials requires the use of screen filtration.

[0003] The announcement number is CN221713815U, a patent for a biomass pellet production screening device, which includes a base; a screening box is fixedly installed on the top of the base, a conveying box is fixedly installed on the top of the screening box, a crushing box is fixedly installed on the top of the screening box, a support frame is fixedly installed on the top of the base, a crushing motor is fixedly installed on the inner wall of the support frame, a first output shaft is fixedly installed on the right side of the crushing motor, the first output shaft passes through the left inner wall of the box body of the crushing box, a curved blade is fixedly installed on the surface of the first output shaft, a raw material screen is fixedly installed below the curved blade, and a feed port is opened on the top of the crushing box; through the setting of the crushing box, the raw materials can be directly crushed, which solves the disadvantage that the device can only screen the finished products and simplifies the process of biomass pellet production.

[0004] Since biological raw materials are generally crushed by a crushing roller and then screened by a screening plate, and during the crushing process, the collision between the powder and the cutter head generates heat, which may cause the powder to stick together and easily form agglomerates, thereby affecting the subsequent screening. After the raw materials are crushed, the above-mentioned patent uses a film pressing rod to squeeze them and drops them onto the inclined plate through the film pressing screen. The agglomerated powder squeezed by the film pressing rod is likely to cause the filter holes to be blocked, affecting the screening efficiency.

[0005] Therefore, it is necessary to provide a new technical solution to overcome the above-mentioned defects. Utility Model Content

[0006] The purpose of the utility model is to provide a biological raw material screening device which can effectively solve the above technical problems.

[0007] In order to achieve the purpose of this utility model, the following technical solutions are adopted:

[0008] A biological raw material screening device comprises: a screening box, a metal filter fixedly mounted on the screening box, a scattering component for dispersing the biological raw material on the metal filter, an impact component for impacting the bottom of the metal filter to prevent clogging of the filter holes, and a feeding component for adding the biological raw material into the screening box;

[0009] The dispersing assembly includes: a support plate fixedly mounted on the screening box, a bevel gear shaft rotatably mounted on the support plate, a brush plate fixedly mounted on the bevel gear shaft for dispersing the biological raw materials, a motor fixedly mounted on the support plate, a rotating shaft fixedly connected to the output end of the motor, and first bevel gears fixedly mounted on both ends of the rotating shaft, and a group of the first bevel gears are meshed with the upper ends of adjacent bevel gear shafts.

[0010] Furthermore, the impact assembly includes: a movable rod that is movably arranged on the metal filter, an extrusion block fixedly mounted on the movable rod, a guide plate fixedly mounted on the screening box and guiding the movement of the movable rod, a connecting block fixedly mounted on the movable rod, an impact ball fixedly mounted on the connecting block and capable of impacting the bottom of the metal filter, and a spring sleeved on the movable rod.

[0011] Furthermore, one end of the spring is fixedly connected to the bottom of the connecting block, and the other end of the spring is fixedly connected to the surface of the guide plate.

[0012] Furthermore, the guide plate is fixedly installed at an angle on one side of the inner wall of the screening box.

[0013] Furthermore, the feeding assembly includes: a conveying shell fixedly mounted on the screening box for conveying the crushed biological raw materials, a spiral conveying rod rotatably mounted on the conveying shell for conveying the raw materials, a second bevel gear fixedly mounted on the spiral conveying rod and meshing with the adjacent first bevel gear, and a hopper fixedly mounted on one side of the conveying shell for facilitating the addition of raw materials.

[0014] Furthermore, the inner bottom of the screening box and the inner bottom of the hopper are both configured as inclined surfaces.

[0015] Compared with the prior art, the utility model has the following beneficial effects: through the arrangement of components such as the breaking up assembly, the impact group and the feeding assembly, the feeding assembly first stably conveys the raw materials from the discharge end of the conveying shell to the metal filter, avoiding adding the crushed raw materials directly from the top of the screening device, causing accumulation of raw materials and affecting screening, and then the breaking up assembly, the impact group and the feeding assembly cooperate to break up and disperse the crushed raw materials on the surface of the metal filter through the rotating brush plate, and under the linkage action, the impact ball repeatedly impacts the metal filter, so that the metal filter can achieve vibration, which can reduce the clogging problem of the filter holes of the metal filter and improve the screening efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention.

[0017] Figure 1 This is a schematic diagram of a main cross-sectional view of the present utility model;

[0018] Figure 2 For the utility model Figure 1 A schematic diagram of the structure at center A;

[0019] Figure 3 It is a main schematic diagram of the utility model.

[0020] In the figure: 1. Screening box; 2. Metal filter; 3. Breaking assembly; 301. Support plate; 302. Bevel gear shaft; 303. Brush plate; 304. Motor; 305. Rotating shaft; 306. First bevel gear; 4. Impact assembly; 401. Movable rod; 402. Extrusion block; 403. Guide plate; 404. Connecting block; 405. Impact ball; 406. Spring; 5. Feeding assembly; 501. Conveying shell; 502. Screw conveying rod; 503. Second bevel gear; 504. Hopper. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the embodiments described are some embodiments of the present invention, not all embodiments.

[0022] In the description of the present invention, it should be understood that the terms "center", "transverse", "longitudinal", "front", "back", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention. When a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a centered component. When a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centered component at the same time. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a centered component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0023] like Figures 1 to 3 As shown, the present invention is a biological raw material screening device, comprising: a screening box 1, a metal filter 2 fixedly mounted on the screening box 1, a scattering component 3 for dispersing the biological raw materials on the metal filter 2, an impact component 4 for impacting the bottom of the metal filter 2 to prevent clogging of the filter holes, and a feeding component 5 for adding the biological raw materials into the screening box 1;

[0024] The feeding assembly 5 includes: a conveying shell 501 fixedly mounted on the screening box 1 for conveying the crushed biological raw materials, a spiral conveying rod 502 rotatably mounted on the conveying shell 501 for conveying the raw materials, a second bevel gear 503 fixedly mounted on the spiral conveying rod 502 and meshing with the adjacent first bevel gear 306, and a hopper 504 fixedly mounted on one side of the conveying shell 501 for facilitating the addition of raw materials. By introducing the crushed raw materials into the hopper 504, due to the inclined surface at the bottom of the hopper 504, the powder gathers toward the feed end of the conveying shell 501, and when the first bevel gear 306 on the surface of the rotating shaft 305 is driven to rotate by the output end of the motor 304, the second bevel gear 503 fixed on the top of the spiral conveying rod 502 engages with the corresponding first bevel gear 306, so that the spiral conveying rod 502 stably conveys the crushed raw materials in the hopper 504 from the discharge end of the conveying shell 501 to the metal filter 2, and then the crushing component 3 breaks up the agglomerated raw materials after crushing, avoiding the direct addition of raw materials from the top of the screening device, causing the accumulation of raw materials and affecting the screening, and facilitating the addition of raw materials.

[0025] The inner bottom of the screening box 1 and the inner bottom of the hopper 504 are both inclined. The discharge port at the bottom of the screening box 1 is located at the lower part of the inclined surface of the bottom of the screening box 1. The inclined surface of the inner bottom of the screening box 1 facilitates the screening of raw materials to move closer to the discharge port for easy collection. The inclined surface of the inner bottom of the hopper 504 facilitates the collection of biological raw materials added to the hopper 504 toward the feed end of the conveying housing 501, thereby facilitating the conveying of the raw materials.

[0026] The breaking up component 3 includes: a support plate 301 fixedly mounted on the screening box 1, a bevel gear shaft 302 rotatably mounted on the support plate 301, the surface of the bevel gear shaft 302 and the middle part of the support plate 301 are rotatably mounted through bearings, and a brush plate 303 fixedly mounted on the bevel gear shaft 302 for dispersing the biological raw materials, a motor 304 fixedly mounted on the support plate 301, a rotating shaft 305 fixedly connected to the output end of the motor 304, and first bevel gears 306 fixedly mounted at both ends of the rotating shaft 305, and a group of first bevel gears 306 are meshed with the upper ends of adjacent bevel gear shafts 302.

[0027] The impact assembly 4 includes: a movable rod 401 that is movable and penetrates the metal filter 2, an extrusion block 402 that is fixedly mounted on the movable rod 401, an upper end of the extrusion block 402 is a semicircular arc surface, which reduces the contact area between the two when the brush plate 303 squeezes the extrusion block 402, making it easier for the brush plate 303 to squeeze the extrusion block 402 downward, a guide plate 403 that is fixedly mounted on the screening box 1 and guides the movement of the movable rod 401, and the guide plate 403 is tilted and fixedly mounted on one side of the inner wall of the screening box 1. The tilted setting of the guide plate 403 prevents the screening from The biological raw materials are accumulated on the guide plate 403, and the connecting block 404 is fixedly installed on the movable rod 401, and the impact ball 405 is fixedly installed on the connecting block 404 and can impact the bottom of the metal filter 2, and the spring 406 is sleeved on the movable rod 401. One end of the spring 406 is fixedly connected to the bottom of the connecting block 404, and the other end of the spring 406 is fixedly connected to the surface of the guide plate 403. Through the action of the spring 406, the impact ball 405 can be quickly reset, so that it can impact the bottom of the metal filter 2 to generate vibration.

[0028] Since biological raw materials are generally crushed by a crushing roller and then screened by a screening plate, and during the crushing process, the powder collides with the cutter head to generate heat, which may cause the powder to stick together and form agglomerates, thereby affecting the subsequent screening. When the crushed raw materials are stably conveyed to the metal filter 2 through the feeding assembly 5, the bevel gear shaft 302 is engaged with the adjacent first bevel gear 306, so that the bevel gear shaft 302 drives the bottom brush plate 303 to rotate, so that the rotating brush plate 303 breaks up and disperses the crushed raw materials on the surface of the metal filter 2, and while the brush plate 303 rotates, one end of the brush plate 303 will intermittently squeeze the extrusion block 402 at the top of the movable rod 401, so that the extrusion block 40 2 moves downward, so that the movable rod 401 drives the impact ball 405 fixed on the connecting block 404 to descend, so that it releases the contact with the bottom of the metal filter 2. When the brush plate 303 is not pressed against the extrusion block 402 on the top of the movable rod 401, the spring 406 elastically resets after being stressed, and can quickly push the impact ball 405 fixed on the connecting block 404 to move upward, so that the impact ball 405 hits the bottom of the metal filter 2, causing the metal filter 2 to vibrate. When the brush plate 303 keeps rotating, the impact ball 405 will repeatedly hit the metal filter 2 under the action of the spring 406, so that the metal filter 2 can achieve the vibration effect, which can reduce the clogging problem of the filter holes of the metal filter 2 and improve the screening efficiency.

[0029] Working principle: Turn on the power, and when screening the crushed biological raw materials, the crushed raw materials are introduced into the hopper 504. Due to the inclined surface at the bottom of the hopper 504, the powder gathers toward the feed end of the conveying shell 501. When the output end of the motor 304 drives the first bevel gear 306 on the surface of the rotating shaft 305 to rotate, the second bevel gear 503 fixed on the top of the spiral conveying rod 502 engages with the corresponding first bevel gear 306, so that the spiral conveying rod 502 stably conveys the crushed raw materials in the hopper 504 from the discharge end of the conveying shell 501 to the metal filter 2, and the bevel gear shaft 302 engages with the adjacent first bevel gear 306, so that the bevel gear shaft 302 drives the bottom brush plate 303 to rotate, so that the rotating brush plate 303 breaks up and disperses the crushed raw materials on the surface of the metal filter 2, and on the brush plate While 303 is rotating, one end of the brush plate 303 will intermittently squeeze the squeezing block 402 on the top of the movable rod 401, causing the squeezing block 402 to move downward, so that the movable rod 401 drives the impact ball 405 fixed on the connecting block 404 to descend, so that it is released from contact with the bottom of the metal filter 2. When the brush plate 303 is not pressed against the squeezing block 402 on the top of the movable rod 401, the spring 406 elastically resets after being stressed, and can quickly push the impact ball 405 fixed on the connecting block 404 to move upward, so that the impact ball 405 hits the bottom of the metal filter 2, causing the metal filter 2 to vibrate. While the brush plate 303 is constantly rotating, the impact ball 405 will repeatedly hit the metal filter 2 under the action of the spring 406, so that the metal filter 2 can achieve a vibration effect, which can reduce the blockage of the filter holes of the metal filter 2.

[0030] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology. It will not be described in detail here. The content not described in detail in this specification belongs to the existing technology known to professional and technical personnel in this field.

[0031] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all such improvements and changes should fall within the scope of protection of the claims attached to this utility model.

Claims

1. A biological raw material screening device, characterized in that: include: A screening box, a metal filter fixedly mounted on the screening box, a breaking assembly for dispersing the biological raw materials on the metal filter, an impact assembly for impacting the bottom of the metal filter to prevent clogging of the filter holes, and a feeding assembly for adding the biological raw materials into the screening box; The dispersing assembly includes: a support plate fixedly mounted on the screening box, a bevel gear shaft rotatably mounted on the support plate, a brush plate fixedly mounted on the bevel gear shaft for dispersing the biological raw materials, a motor fixedly mounted on the support plate, a rotating shaft fixedly connected to the output end of the motor, and first bevel gears fixedly mounted on both ends of the rotating shaft, and a group of the first bevel gears are meshed with the upper ends of adjacent bevel gear shafts.

2. A biological material screening device according to claim 1, characterized in that: The impact assembly includes: a movable rod movably penetrating the metal filter, an extrusion block fixedly mounted on the movable rod, a guide plate fixedly mounted on the screening box and guiding the movement of the movable rod, a connecting block fixedly mounted on the movable rod, an impact ball fixedly mounted on the connecting block and capable of impacting the bottom of the metal filter, and a spring sleeved on the movable rod.

3. A biological material screening device according to claim 2, characterized in that: One end of the spring is fixedly connected to the bottom of the connecting block, and the other end of the spring is fixedly connected to the surface of the guide plate.

4. A biological material screening device according to claim 2, characterized in that: The guide plate is fixedly installed at one side of the inner wall of the screening box body at an angle.

5. The biological material screening device according to claim 1, characterized in that: The feeding assembly includes: a conveying shell fixedly mounted on the screening box to convey the crushed biological raw materials, a spiral conveying rod rotatably mounted on the conveying shell to convey the raw materials, a second bevel gear fixedly mounted on the spiral conveying rod and meshing with the adjacent first bevel gear, and a hopper fixedly mounted on one side of the conveying shell for facilitating the addition of raw materials.

6. A biological material screening device according to claim 5, characterized in that: The inner bottom of the screening box and the inner bottom of the hopper are both arranged as inclined surfaces.

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