Screening device for biological raw materials

Abstract

The utility model relates to the field of biological raw material screening, in particular to a biological raw material screening device which comprises a biological raw material screening box, a screening assembly, a fixing frame, a dispersing assembly and a feeding hopper, the dispersing assembly is used for dispersing biological raw materials, and the screening assembly is composed of a screening plate, a support, a damping spring shock absorber and a vibration motor. The screen plate is connected with the support through the damping spring shock absorber, the vibration motor is installed at the bottom of the screen plate, the dispersing assembly is connected with the screen plate through the fixing frame, and the dispersing assembly comprises a connecting frame and a dispersing disc fixed to the connecting frame through fastening bolts. According to the biological raw material screening device, vibration screening can be conducted on biological raw materials through the screening assembly, the dispersing assembly can disperse the biological raw materials discharged by the feeding hopper, the situation that the screening efficiency is affected due to the fact that the biological raw materials are stacked on the screening plate is avoided, meanwhile, the dispersing assembly can stir the biological raw materials in the feeding hopper, and the feeding efficiency is improved.

Description

Technical Field

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

[0002] Biological raw materials mainly come from plant waste such as crop straw, wood chips, sawdust, peanut shells, and organic waste such as animal feces. These raw materials are processed through crushing, drying, pressing and other processes to make granular substances with a diameter of 2.5-10 mm. During the processing of biological raw materials, they need to be screened.

[0003] The utility model with publication number CN211100017U provides a raw material screening device for biomass pellet fuel. To address the existing problem of requiring manual removal of residual material from the screen, the following solution is proposed: it includes a base plate, a plurality of pillars fixedly mounted on the top of the base plate, sleeves movably mounted on the tops of the pillars, a box body fixedly connected to the top of the sleeve, an opening provided at the top of the box body, a push plate slidably mounted on the bottom inner wall of the box body, a rectangular frame rotatably mounted within the box body, a screen mesh fixedly mounted on the bottom of the rectangular frame, a discharge port formed on one side of the rectangular frame, a vertical plate movably mounted on the discharge port, and fine material pipes and coarse material pipes respectively mounted on the bottom sides of the box body. The utility model realizes the screening function of the vibrating screen device, allowing coarse and fine materials to be discharged separately, saving manual material removal, being easy to use, and being easy to promote.

[0004] When the existing biological raw material screening device is in use, it is difficult to disperse the biological raw materials discharged from the feed hopper, and the biological raw materials are easily accumulated on the screen plate, affecting the screening efficiency of the screen plate.

[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 the utility model, the following technical solution is adopted: a screening device for biological raw materials, comprising: a biological raw material screening box, a screening assembly, a fixing frame, a dispersion assembly for dispersing the biological raw materials, and a feed hopper, the screening assembly is composed of a sieve plate, a bracket, a damping spring shock absorber, and a vibration motor, the sieve plate is connected to the bracket through the damping spring shock absorber, the vibration motor is installed at the bottom of the sieve plate, the dispersion assembly is connected to the sieve plate through the fixing frame, the dispersion assembly includes: a connecting frame, a dispersion disk fixed to the connecting frame by fastening bolts, and a fixing rod installed on the dispersion disk.

[0008] Furthermore, the sieve plate is an inclined structure with the left side lower and the right side higher.

[0009] Furthermore, a feed hopper is installed on the top of the biological raw material screening box, and the dispersion plate is located below the feed hopper.

[0010] Furthermore, a driving mechanism is installed in the fixed frame, and the driving mechanism is composed of a screw, a driving motor, and a movable block threadedly connected to the screw. A cleaning assembly is connected below the movable block, and the cleaning assembly is composed of a connecting rod and a brush fixed to the connecting rod by a fixing bolt.

[0011] Compared with the existing technology, the utility model has the following beneficial effects: the utility model provides a biological raw material screening device that can vibrate and screen the biological raw materials through the screening component, and the dispersion component can disperse the biological raw materials discharged from the feed hopper to avoid the accumulation of biological raw materials on the screen plate and affect its screening efficiency. At the same time, the dispersion component can also stir the biological raw materials in the feed hopper to improve the feeding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] 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.

[0013] Figure 1 This is a front view structural diagram of the utility model;

[0014] Figure 2 This is a schematic diagram of the front view structure of the screening component of the present invention;

[0015] Figure 3 This is a schematic diagram of the front view structure of the dispersed components of the present invention;

[0016] Figure 4 It is a schematic diagram of a partial side cross-sectional structure of the cleaning component of the present invention.

[0017] In the figure: 1. Biological material screening box; 2. First discharge channel; 3. Second discharge channel; 4. Screening assembly; 41. Screen plate; 42. Bracket; 43. Damping spring shock absorber; 44. Vibration motor; 5. Fixed frame; 6. Cleaning assembly; 61. Brush; 62. Fixing bolt; 63. Connecting rod; 7. Dispersing assembly; 71. Connecting frame; 72. Fastening bolt; 73. Dispersing disc; 74. Fixing rod; 8. Feed hopper; 9. Driving mechanism; 91. Driving motor; 92. Screw; 93. Movable block. DETAILED DESCRIPTION

[0018] 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.

[0019] 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 mechanism is referred to as being "fixed to" another mechanism, it may be directly on the other mechanism or there may also be a centered mechanism. When a mechanism is considered to be "connected to" another mechanism, it may be directly connected to the other mechanism or there may be a centered mechanism at the same time. When a mechanism is considered to be "set on" another mechanism, it may be directly set on the other mechanism or there may be a centered mechanism at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0020] like Figures 1 to 4 As shown, the present invention provides a biological raw material screening device, comprising: a biological raw material screening box 1, a screening component 4, a fixing frame 5, a dispersing component 7 for dispersing the biological raw material, and a feed hopper 8.

[0021] The screening assembly 4 is composed of a sieve plate 41, a bracket 42, a damping spring shock absorber 43, and a vibration motor 44. The sieve plate 41 is an inclined structure with the left side lower and the right side higher, which is convenient for screening and discharging. The sieve plate 41 is connected to the bracket 42 through the damping spring shock absorber 43, and the vibration motor 44 is installed at the bottom of the sieve plate 41.

[0022] The dispersion component 7 is connected to the sieve plate 41 through the fixing frame 5, and the fixing frame 5 is fixedly mounted on the sieve plate 41. The dispersion component 7 includes: a connecting frame 71, a dispersion plate 73 fixed to the connecting frame 71 by fastening bolts 72, and a fixing rod 74 installed on the dispersion plate 73. There are several fixing rods 74. A feed hopper 8 is installed on the top of the biological raw material screening box 1, and the dispersion plate 73 is located below the feed hopper 8 to facilitate the dispersion of the biological raw materials discharged from the feed hopper 8.

[0023] In the present invention, the sieve plate 41 is shaken by the vibration motor 44 to screen the biological raw materials. During the screening process, the sieve plate 41 drives the dispersion plate 73 and the fixed rod 74 to shake. The dispersion plate 73 disperses the biological raw materials discharged from the feed hopper 8 so that they can fall on the sieve plate 41 in a dispersed manner, thereby improving the screening efficiency of the sieve plate 41 for the biological raw materials and avoiding the accumulation of biological raw materials on the sieve plate 41 and affecting its screening efficiency. The fixed rod 74 can stir the biological raw materials in the feed hopper 8 to avoid the biological raw materials clogging the feed hopper 8 when loading. After removing the fastening bolts 72, the dispersion plate 73 and the fixed rod 74 can be removed for cleaning and replacement.

[0024] A driving mechanism 9 is installed in the fixed frame 5. The driving mechanism 9 is composed of a screw 92, a driving motor 91, and a movable block 93 threadedly connected to the screw 92. A cleaning assembly 6 is connected below the movable block 93. The cleaning assembly 6 is composed of a connecting rod 63 and a brush 61 fixed to the connecting rod 63 by a fixing bolt 62. The bristles of the brush 61 are made of hard material.

[0025] In the present utility model, the drive motor 91 is started, the screw 92 rotates, and the movable block 93 drives the brush 61 to move. During the movement, the brush 61 contacts the sieve plate 41. The hard bristles can push out the biological raw materials stuck in the mesh holes of the sieve plate 41 and clean them. This can effectively avoid the situation where the biological raw materials are stuck on the sieve plate 41 and affect its screening efficiency. The fixing bolt 62 is removed and the brush 61 can be removed for replacement.

[0026] Working principle: biological raw materials are poured into the feed hopper 8, and the biological raw materials fall on the dispersion disk 73. After being dispersed by the dispersion disk 73, they fall on the sieve plate 41. The vibration motor 44 is started, and the sieve plate 41 shakes to screen the biological raw materials. At the same time, the fixed rod 74 that shakes the sieve plate 41 can stir the biological raw materials in the feed hopper 8 to avoid the situation where the biological raw materials block the feed hopper 8 during feeding, thereby improving the feeding efficiency. The screened large-particle biological raw materials are discharged through the first discharge channel 2, and the screened small-particle biological raw materials are discharged through the second discharge channel 3. The drive motor 91 is started, the screw 92 rotates, and the movable block 93 drives the brush 61 to move. The moving brush 61 can push out the biological raw materials stuck in the mesh holes of the sieve plate 41 to achieve the purpose of cleaning it.

[0027] 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.

[0028] 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 biological material screening box (1), a screening assembly (4), a fixing frame (5), a dispersing assembly (7) for dispersing the biological material, and a feed hopper (8); The screening assembly (4) is composed of a sieve plate (41), a bracket (42), a damping spring shock absorber (43), and a vibration motor (44); the sieve plate (41) is connected to the bracket (42) via the damping spring shock absorber (43); and the vibration motor (44) is installed at the bottom of the sieve plate (41); The dispersion assembly (7) is connected to the sieve plate (41) via a fixing frame (5); The dispersion assembly (7) comprises: a connecting frame (71), a dispersion disk (73) fixed to the connecting frame (71) by fastening bolts (72), and a fixing rod (74) mounted on the dispersion disk (73).

2. A biological material screening device according to claim 1, characterized in that: The sieve plate (41) is an inclined structure with the left side lower and the right side higher.

3. The biological material screening device according to claim 1, characterized in that: A feed hopper (8) is installed on the top of the biological material screening box (1), and the dispersion plate (73) is located below the feed hopper (8).

4. The biological material screening device according to claim 1, characterized in that: A driving mechanism (9) is installed in the fixing frame (5), and the driving mechanism (9) is composed of a screw (92), a driving motor (91), and a movable block (93) threadedly connected to the screw (92); A cleaning assembly (6) is connected below the movable block (93); The cleaning assembly (6) is composed of a connecting rod (63) and a brush (61) fixed on the connecting rod (63) via a fixing bolt (62).

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