Biomass processing particle screening device

Abstract

The utility model relates to the technical field of biomass particle processing, in particular to a biomass processing particle screening device which comprises a screening box, a feeding port is formed in one side of the screening box, a screening box is movably arranged in the screening box, placing grooves are formed in the two sides of the inner wall of the screening box respectively, and the placing grooves are communicated with the feeding port. A slot is formed in the inner bottom surface of the placement groove; a first filter plate is detachably arranged in the screening box, a second filter plate is arranged below the first filter plate, a valve and a solid pump are arranged in the backflow pipe, a spraying head is fixed to one end of the backflow pipe, and a vibration motor is fixed to one side of the inner wall of the screening box; then the materials fall onto the second filter plate from the first filter plate, then the materials with different sizes are separated, and then the materials which are just filtered flow back to the first filter plate and the second filter plate again by opening a valve and a solid pump in a backflow pipe, so that the materials can be filtered again, and the materials are filtered more finely; and the difference between the sizes of the materials is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of biomass particle processing, in particular to a biomass processing particle screening device. Background Art

[0002] Biomass pellets are cold-formed and compacted by rollers and ring dies at room temperature using crushed biomass straw, forestry waste and other raw materials. They are convenient for storage and transportation, and greatly improve the combustion performance of biomass. my country is a country with large energy consumption. Adjusting the energy structure and utilizing biomass energy is an inevitable choice.

[0003] In the prior art, a Chinese utility model with publication number CN213032931U discloses a screening device for processing biomass particles, comprising a screening device body; two sets of support frames of different heights are installed at the bottom of the screening device body, and the left and right sides of the screening device body are installed on the support frames; the screening device body comprises an inclined screen cylinder; a feed port is provided on one side of the top of the screen cylinder; a stirring motor is installed on one side of the screen cylinder, and the rotating shaft of the stirring motor is connected to a stirring shaft, the stirring shaft is arranged inside the screen cylinder, and a plurality of stirring rods are arranged in an array on the outer wall of the stirring shaft, and the end of the stirring rod away from the stirring shaft is connected to a material turning scraper adapted to the curvature of the inner wall of the screen cylinder.

[0004] In the above technology, the staff pours the material into the feed hopper, guides it into the screen drum through the feed pipe, and then drives the cam to rotate through the motor, and pushes the push plate through the push rod to push the material below the feed port downward. Then the stirring motor drives the stirring shaft to rotate. At the same time, the stirring rod drives the material turning scraper to continuously turn and stir the material inside the screen drum, so that the material can be evenly and fully screened. However, during screening, the screen drum is only used for screening once, and the material cannot be screened multiple times, which will lead to considerable errors in the size of the screened material. Utility Model Content

[0005] The purpose of the utility model is to provide a biomass processing particle screening device to solve the problems raised in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical solution: a screening box, a feeding port is provided on one side of the screening box, a screening box is movably provided inside the screening box, placement grooves are provided on both sides of the inner wall of the screening box, and a slot is provided on the inner bottom surface of the placement groove;

[0007] The filter box is provided with a first filter plate detachably disposed inside, a second filter plate is disposed below the first filter plate, the first filter plate and the second filter plate have different mesh sizes, and a return pipe is connected and fixed to the bottom surface of the filter box;

[0008] The other end of the return pipe passes through the screening box and extends to the interior of the screening box. A valve and a solid pump are arranged inside the return pipe. A spray head is fixed to one end of the return pipe. A vibration motor is fixed to one side of the inner wall of the screening box.

[0009] Preferably, a fixing block is fixed on both sides of the first filter plate and the second filter plate respectively, a fixing hole is opened on the top surface of the fixing block, a threaded rod is rotatably arranged inside the slot, a rotating column is arranged inside the fixing hole, the thread groove of the threaded rod is rotatably arranged with the rotating column, and a scraper plate is rotatably arranged on the top end of the threaded rod.

[0010] Preferably, an electric push rod is fixed to one side of the inner wall of the screening box, the telescopic end of the electric push rod is fixed to one side of the screening box, U-shaped support plates are fixed to both sides of the inner wall of the screening box, a moving block is slidably provided inside the U-shaped support plate, and one side of the moving block is fixed to one side of the screening box.

[0011] Preferably, anti-slip grooves are respectively provided on both sides of the inner wall of the U-shaped support plate, and an anti-slip strip is slidably provided inside the anti-slip groove, and one side of the anti-slip strip is fixed to one side of the moving block.

[0012] Preferably, a guide hopper is fixed inside the feed port of the screening box, the discharge port of the guide hopper is tilted downward, and two air inlets are opened on one side of the guide hopper and a protective net is fixed thereto.

[0013] Preferably, a heater is fixed to the rear side of the screening box, and an air outlet of the heater corresponds to an air inlet on one side of the guide hopper.

[0014] Preferably, a protective door is rotatably connected to one side of the screening box via a hinge, a mounting hole is provided on one side of the protective door, and a perspective window is fixed inside the mounting hole.

[0015] Compared with the prior art, the utility model has the following beneficial effects: the material is transported to the screening box through the guide hopper, and then the material falls into the first filter plate. When screening, the vibration motor is turned on, and the vibration shaft of the vibration motor contacts the screening box, which makes the screening of the material smoother and avoids blockage, thereby improving the screening speed. The material then falls from the first filter plate to the second filter plate, thereby separating materials of different sizes, and then the valve and the solid pump in the reflux pipe are opened to allow the just filtered material to flow back to the first filter plate and the second filter plate again, so that it can be done again, thereby making the material filtered more finely and reducing the difference in material size. When the filtration is completed, the screening box is pushed out by the electric push rod, and then the screened material is loaded and taken. After taking it out, the first filter plate and the second filter plate can be cleaned by taking the threaded rod out of the slot to avoid affecting the next use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings:

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the structural section of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the moving block in the utility model;

[0020] Figure 4 It is a structural schematic diagram of the anti-slip groove in the utility model;

[0021] Figure 5 It is a structural schematic diagram of the screening box in the utility model.

[0022] In the figure: 1. screening box; 2. screening box; 3. placement slot; 4. slot; 5. first filter plate; 6. second filter plate; 7. return pipe; 8. spray head; 9. vibration motor; 10. fixing block; 11. fixing hole; 12. threaded rod; 13. electric push rod; 14. U-shaped support plate; 15. moving block; 16. anti-slip groove; 17. anti-slip strip; 18. guide hopper; 19. heater; 20. protective door; 21. installation hole; 22. perspective window. DETAILED DESCRIPTION

[0023] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in combination with the accompanying drawings by way of examples.

[0024] It should be noted that many specific details are set forth in the following description to facilitate a full understanding of the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0025] In addition, in the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" 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, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0026] In the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. However, if it is indicated as a direct connection, it means that the two connected bodies are not connected through an intermediate structure, but are connected to form a whole only through a connecting structure. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0027] In the present utility model, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0028] Embodiment 1

[0029] See also Figures 1 to 5 The utility model provides a technical solution: a screening box 1, a feeding port is provided on one side of the screening box 1, a screening box 2 is movably arranged inside the screening box 1, placement grooves 3 are respectively provided on both sides of the inner wall of the screening box 2, and a slot 4 is provided on the inner bottom surface of the placement groove 3; a first filter plate 5 is detachably arranged inside the screening box 2, a second filter plate 6 is provided below the first filter plate 5, the mesh numbers of the first filter plate 5 and the second filter plate 6 are different, and a return pipe 7 is connected and fixed to the bottom surface of the screening box 2; the other end of the return pipe 7 passes through the screening box 1 and extends to the interior of the screening box 1, a valve and a solid pump are provided inside the return pipe 7, a spray head 8 is fixed at one end of the return pipe 7, and a vibration motor 9 is fixed on one side of the inner wall of the screening box 1.

[0030] By turning on the vibration motor 9, the vibration shaft of the vibration motor 9 is in contact with the screening box 2, which makes the screening of materials smoother and avoids blockage, thereby improving the screening speed. The material then falls from the first filter plate 5 to the second filter plate 6, thereby separating materials of different sizes. Then, the valve and the solid pump in the reflux pipe 7 are opened to allow the just filtered material to flow back to the first filter plate 5 and the second filter plate 6, so that it can be done again, thereby making the material filtered more delicately and reducing the difference between the material sizes.

[0031] Embodiment 2

[0032] On the basis of Example 1, fixed blocks 10 are respectively fixed on both sides of the first filter plate 5 and the second filter plate 6, and a fixing hole 11 is opened on the top surface of the fixed block 10. A threaded rod 12 is rotatably arranged inside the slot 4, and a rotating column is arranged inside the fixing hole 11. The threaded groove of the threaded rod 12 is rotatably arranged with the rotating column, and a scraping plate is rotatably arranged at the top of the threaded rod 12. An electric push rod 13 is fixed to one side of the inner wall of the screening box 1, and the telescopic end of the electric push rod 13 is fixed to one side of the screening box 2. U-shaped support plates 14 are respectively fixed on both sides of the inner wall of the screening box 1, and a moving block 15 is slidably arranged inside the U-shaped support plate 14, and one side of the moving block 15 is fixed to one side of the screening box 2.

[0033] The rotation of the threaded rod 12 drives the scraper plate to rotate, so that the scraper plate can collide with the first filter plate 5, so that the material on the first filter plate 5 can be filtered comprehensively and carefully, and the electric push rod 13 pushes the screening box 2 to be removed from the screening box 1, which saves time and effort. The U-shaped support plate 14 and the moving block 15 can avoid deviation when moving the screening box 2, making it move more stably, and the anti-slip groove 16 and the anti-slip strip 17 can prevent the screening box 2 from tipping over.

[0034] Embodiment 3

[0035] On the basis of the second embodiment, a guide hopper 18 is fixed inside the feed port of the screening box 1, and the discharge port of the guide hopper 18 is inclined downward. Two air inlets are opened on one side of the guide hopper 18 and a protective net is fixed thereto. A heater 19 is fixed on the rear side of the screening box 1, and the air outlet of the heater 19 corresponds to the air inlet on one side of the guide hopper 18. A protective door 20 is connected to one side of the screening box 1 by rotation through a hinge, and a mounting hole 21 is opened on one side of the protective door 20, and a perspective window 22 is fixed inside the mounting hole 21.

[0036] The material is conveyed to the screening box 1 through the guide hopper 18 to prevent the material from being scattered everywhere. The warm air is blown out by the heater 19 to dry the material to prevent the material from being damp and difficult to screen. The dust generated during screening can be blocked by the protective door 20, thereby making the surrounding environment cleaner and tidier. The screening box 1 can be directly observed through the perspective window 22, so the screening situation can be known in time.

[0037] When the present invention is in use, the staff first transports the material to the screening box 1 through the guide hopper 18, and then the material falls into the first filter plate 5. When screening, the vibration motor 9 is turned on, and the vibration shaft of the vibration motor 9 contacts the screening box 2, so that the screening of materials is smoother and blockage is avoided, thereby improving the screening speed. The material then falls from the first filter plate 5 to the second filter plate 6, thereby separating materials of different sizes, and then the valve and the solid pump in the reflux pipe 7 are opened to make the just filtered material flow back to the first filter plate 5 and the second filter plate 6 again, so that it can be done again, thereby making the material filtered more finely and reducing the difference between the sizes of materials. When the filtering is completed, the screening box 2 is pushed out by the electric push rod 13, and then the screened material is loaded and taken. After taking it out, the threaded rod 12 is taken out from the slot 4, and then the first filter plate 5 and the second filter plate 6 can be cleaned to avoid affecting the next use.

[0038] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0039] The utility model is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the scope of protection of the utility model.

Claims

1. A biomass processing particle screening device, comprising a screening box (1), characterized in that: A feed port is provided on one side of the screening box (1); a screening box (2) is movably provided inside the screening box (1); placement grooves (3) are provided on both sides of the inner wall of the screening box (2); and a slot (4) is provided on the inner bottom surface of the placement groove (3); A first filter plate (5) is detachably arranged inside the screening box (2), a second filter plate (6) is arranged below the first filter plate (5), the mesh numbers of the first filter plate (5) and the second filter plate (6) are different, and a return pipe (7) is connected and fixed to the bottom surface of the screening box (2); The other end of the return pipe (7) passes through the screening box (1) and extends to the interior of the screening box (1). A valve and a solid pump are provided inside the return pipe (7). A spray head (8) is fixed to one end of the return pipe (7). A vibration motor (9) is fixed to one side of the inner wall of the screening box (1).

2. A biomass processing particle screening device according to claim 1, characterized in that: A fixing block (10) is fixed on both sides of the first filter plate (5) and the second filter plate (6), a fixing hole (11) is provided on the top surface of the fixing block (10), a threaded rod (12) is rotatably arranged inside the slot (4), a rotating column is arranged inside the fixing hole (11), the thread groove of the threaded rod (12) is rotatably arranged with the rotating column, and a scraper plate is rotatably arranged at the top end of the threaded rod (12).

3. A biomass processing particle screening device according to claim 2, characterized in that: An electric push rod (13) is fixed to one side of the inner wall of the screening box (1), and the telescopic end of the electric push rod (13) is fixed to one side of the screening box (2). U-shaped support plates (14) are fixed to both sides of the inner wall of the screening box (1), and a moving block (15) is slidably arranged inside the U-shaped support plate (14), and one side of the moving block (15) is fixed to one side of the screening box (2).

4. A biomass processing particle screening device according to claim 3, characterized in that: Anti-slip grooves (16) are respectively provided on both sides of the inner wall of the U-shaped support plate (14), and an anti-slip strip (17) is slidably provided inside the anti-slip groove (16), and one side of the anti-slip strip (17) is fixed to one side of the moving block (15).

5. A biomass processing particle screening device according to claim 4, characterized in that: A guide hopper (18) is fixed inside the feed port of the screening box (1), the discharge port of the guide hopper (18) is tilted downward, and two air inlets are opened on one side of the guide hopper (18) and a protective net is fixed thereto.

6. A biomass processing particle screening device according to claim 5, characterized in that: A heater (19) is fixed to the rear side of the screening box (1), and an air outlet of the heater (19) corresponds to an air inlet on one side of the guide hopper (18).

7. The biomass processing particle screening device according to claim 2, characterized in that: One side of the screening box (1) is rotatably connected to a protective door (20) via a hinge, one side of the protective door (20) is provided with a mounting hole (21), and a perspective window (22) is fixed inside the mounting hole (21).

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