Multi-stage screening filtering mechanism

Abstract

The utility model relates to a multistage screening filtering mechanism, which belongs to the technical field of biomass fuel production, and comprises a screening filtering box, the screening filtering box is provided with a screening filtering mechanism, the screening filtering mechanism comprises a feed port arranged on the surface of the screening filtering box, and the inner side of the feed port is fixedly provided with a screening plate. A conical screening hopper is fixedly installed on the surface of an inner cavity of the screening and filtering box, a conical screening and filtering barrel is rotationally installed on the inner side of the conical screening hopper, and a driving mechanism is arranged between the conical screening and filtering barrel and the screening and filtering box. According to the multi-stage screening filtering mechanism, biomass fuel can be preliminarily screened by arranging an obliquely-arranged screening plate on the outer side of the screening filtering box, a conical screening hopper and a conical screening filtering cylinder are arranged in the screening filtering box, and the biomass fuel can be stirred; and then secondary screening can be conducted on the biomass fuel in the stirring process, and the screening effect on the biomass fuel can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of biomass fuel production, in particular to a multi-stage screening filtering mechanism. Background Art

[0002] Biomass fuel refers to organic matter such as plants and animals that is used as raw materials and converted into combustible fuel through biomass energy technology. Common biomass fuels include wood, straw, sawdust, abandoned crops, domestic garbage, etc. Biomass fuel can be converted into heat energy, electricity or biofuels through direct combustion, gasification, fermentation, etc., and is widely used in heating, power generation, transportation and other fields.

[0003] Chinese patent CN219560397U discloses a biomass fuel particle processing and screening device, including a screening box, the screening box is a rectangular box, the upper side of the screening box is provided with a feed opening, the feed opening is a rectangular slot, and the interior of the screening box is provided with a filter box that can move up and down corresponding to the feed opening below, the filter box is a rectangular box. In the utility model, the material falls from the inside of the third guide plate of the screening box to the inside of the filter box, and the filter box is shaken by a vibration motor, and the material falls on the third guide plate through the filter box, and then rolls with the third guide plate and falls on the end of the swing filter screen away from the swing column, and the swing filter screen is driven by the swing column to swing continuously, and with the swing of the swing filter screen, fine impurities fall through the swing filter screen, and the material slides along the swing filter screen to the first guide plate, and then moves to the discharge trough through the second guide plate, and then moves out from the position of the discharge trough, thereby improving the screening efficiency.

[0004] The above patent improves the shortcomings of the screening device in the prior art that the separation is performed by shaking, and impurities are mixed in the fuel, which affects the screening efficiency. The present embodiment provides another implementation scheme for the problem raised in the above patent. Utility Model Content

[0005] In view of the deficiencies of the prior art, the utility model provides a multi-stage screening filter mechanism, which has the advantage of high screening efficiency and solves the problem that the screening device in the prior art separates by shaking, and impurities are mixed in the fuel, affecting the screening efficiency.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a multi-stage screening and filtering mechanism, comprising a screening and filtering box, wherein the screening and filtering mechanism is provided on the screening and filtering box;

[0007] The screening and filtering mechanism includes a feed port opened on the surface of a screening and filtering box, a screening plate is fixedly installed on the inner side of the feed port, a conical screening bucket is fixedly installed on the inner surface of the screening and filtering box, a conical screening filter cylinder is rotatably installed on the inner side of the conical screening bucket, a driving mechanism is provided between the conical screening filter cylinder and the screening and filtering box, the bottom shape of the screening and filtering box is conical, and a discharge port is provided at the bottom of the screening and filtering box.

[0008] Furthermore, the screen plate is tiltedly arranged on the inner side of the feed port, a surrounding plate fixedly connected to the surface of the screening filter box is fixedly installed on the lower surface of the screen plate, and a material guide trough located below the screen plate is fixedly installed on the surface of the screening filter box.

[0009] Furthermore, a plurality of supporting legs are fixedly mounted on the surface of the screening and filtering box, and the spacing between two adjacent supporting legs is equal.

[0010] Furthermore, the driving mechanism includes an electric telescopic rod and a limit box fixedly mounted on the upper surface of the inner cavity of the screening and filtering box, a mounting plate fixedly mounted on the bottom of the electric telescopic rod, a motor fixedly mounted on the lower surface of the mounting plate, a connecting rod fixedly connected to the conical screen filter cylinder fixedly mounted on the output end of the motor, and a limit plate movably mounted inside the limit box, which penetrates through the outer surface of the limit box and is fixedly connected to the mounting plate.

[0011] Furthermore, a cylinder is fixedly installed at the bottom of the conical screening bucket, the conical screening filter cylinder is located inside the cylinder and a ring located below the cylinder is fixedly installed at the bottom.

[0012] Furthermore, a protective cover is fixedly mounted on the surface of the mounting plate, and the motor is located inside the protective cover.

[0013] Furthermore, a fixing bracket is fixedly mounted on the surface of the motor, and the fixing bracket is fixedly mounted and connected to the surface of the mounting plate.

[0014] The multi-stage screening filter mechanism can perform preliminary screening on the biomass fuel by providing an inclined screening plate on the outside of the screening filter box, and provides a conical screening bucket and a conical screening filter cylinder inside the screening filter box to stir the biomass fuel, and then perform secondary screening on the biomass fuel during the stirring process, which is beneficial to improving the screening effect of the biomass fuel and solves the problem in the prior art that the screening device separates by shaking, and impurities are mixed in the fuel, thereby affecting the screening efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the interior of the screening and filtering box of the utility model structure;

[0016] Figure 2 This is a schematic diagram of the connection between the limit box and the limit plate of the structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the material guide chute of the utility model structure.

[0018] In the figure: 1. screening and filtering box; 2. feed inlet; 3. screening plate; 4. conical screening bucket; 5. conical screening and filtering cylinder; 6. discharge port; 7. enclosure; 8. guide trough; 9. supporting leg; 10. electric telescopic rod; 11. limit box; 12. mounting plate; 13. motor; 14. connecting rod; 15. limit plate; 16. cylinder; 17. ring; 18. protective cover; 19. fixing bracket. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-3 A multi-stage screening filter mechanism in this embodiment includes a screening filter box 1, a plurality of support legs 9 are fixedly installed on the surface of the screening filter box 1, and the spacing between two adjacent support legs 9 is equal, which is convenient for supporting the screening filter box 1. The screening filter box 1 is provided with a screening filter mechanism, and the screening filter mechanism includes a feed port 2 opened on the surface of the screening filter box 1, a screening plate 3 is fixedly installed inside the feed port 2, and the screening plate 3 is tiltedly arranged inside the feed port 2. The lower surface of the screening plate 3 is fixedly installed with a support leg 9 fixed to the surface of the screening filter box 1. The screening filter box 1 is provided with a material guide trough 8 below the screening plate 3, which is fixedly installed on the surface of the screening filter box 1, so as to collect the impurities after the initial screening. A conical screening bucket 4 is fixedly installed on the inner surface of the inner cavity of the screening filter box 1, and a conical screening filter cylinder 5 is rotatably installed on the inner side of the conical screening bucket 4. The bottom of the screening filter box 1 is conical, and a discharge port 6 is provided at the bottom of the screening filter box 1. A cylinder 16 is fixedly installed on the bottom of the conical screening bucket 4, and the conical screening filter cylinder 5 is located on the inner side of the cylinder 16 and a ring 17 located below the cylinder 16 is fixedly installed on the bottom.

[0021] A driving mechanism is provided between the conical sieve filter barrel 5 and the screening filter box 1, and the driving mechanism includes an electric telescopic rod 10 and a limit box 11 fixedly mounted on the upper surface of the inner cavity of the screening filter box 1, a mounting plate 12 is fixedly mounted on the bottom of the electric telescopic rod 10, a motor 13 is fixedly mounted on the lower surface of the mounting plate 12, a connecting rod 14 fixedly mounted on the output end of the motor 13 and fixedly connected to the conical sieve filter barrel 5, a limit plate 15 that penetrates through the outer surface of the limit box 11 and is fixedly connected to the mounting plate 12 is movably installed inside the limit box 11, and the conical sieve filter barrel 5 is conveniently driven to rotate inside the conical screening bucket 4 through the dynamic mechanism, a protective cover 18 is fixedly mounted on the surface of the mounting plate 12, the motor 13 is located in the protective cover 18, a fixing frame 19 is fixedly mounted on the surface of the motor 13, and the fixing frame 19 is fixedly mounted and connected to the surface of the mounting plate 12, and the fixing frame 19 is beneficial to improve the connection stability between the motor 13 and the mounting plate 12.

[0022] It should be noted that the surfaces of the screening plate 3, the conical screening bucket 4 and the conical screening filter cylinder 5 in this embodiment are all provided with a plurality of holes, and the aperture of the holes on the screening plate 3 is larger than the aperture of the holes on the surfaces of the conical screening bucket 4 and the conical screening filter cylinder 5.

[0023] The working principle of the above embodiment is:

[0024] When in use, pour the biomass fuel that needs to be screened onto the screening plate 3, use gravity to make the biomass fuel roll and slide on the screening plate 3 and enter the screening filter box 1 through the feed inlet 2 and fall between the conical screening bucket 4 and the conical screening filter cylinder 5. In the process of the biomass fuel rolling and sliding, the impurities or debris in the biomass fuel are filtered by the screening plate 3 and fall into the guide trough 8. The enclosure 7 can prevent the debris from scattering everywhere, start the motor 13, and the motor 13 drives the conical screening filter cylinder 5 to rotate inside the conical screening bucket 4 through the connecting rod 14. In this process, the biomass fuel follows the conical screening filter cylinder 5 to rotate inside the conical screening bucket 4, so that the remaining impurities in the biomass fuel are filtered out and passed through the outlet. The screening and filtering box 1 is discharged from the material port 6. When the filtered biomass fuel needs to be taken out, the electric telescopic rod 10 is started. The electric telescopic rod 10 drives the mounting plate 12 and the motor 13 to move downward at the same time, and drives the conical screen filter cylinder 5 to move downward through the connecting rod 14, so that the cylinder 16 and the ring 17 are separated. At this time, the cylinder 16 is in an open state, and the biomass fuel in the conical screening bucket 4 is discharged from the conical screening bucket 4 through the cylinder 16, and finally discharged from the screening and filtering box 1 through the material outlet 6. When the conical screen filter cylinder 5 moves downward, the limit plate 15 extends from the limit box 11. The limit plate 15 and the limit box 1 can prevent the motor 13 from rotating, which is beneficial to improve the stability of the motor 13 when working.

[0025] The control method of the present invention is controlled by a controller. The control circuit of the controller can be realized by simple programming by technicians in this field. The provision of power is also common knowledge in this field. The present invention is mainly used to protect mechanical devices, so the present invention will no longer explain the control method and circuit connection in detail.

[0026] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-stage screening filter mechanism, comprising a screening filter box (1), characterized in that: The screening and filtering box (1) is provided with a screening and filtering mechanism; The screening and filtering mechanism comprises a feed inlet (2) opened on the surface of a screening and filtering box (1), a screening plate (3) is fixedly installed on the inner side of the feed inlet (2), a conical screening bucket (4) is fixedly installed on the inner surface of the inner cavity of the screening and filtering box (1), a conical screening filter cylinder (5) is rotatably installed on the inner side of the conical screening bucket (4), a driving mechanism is provided between the conical screening filter cylinder (5) and the screening and filtering box (1), the bottom shape of the screening and filtering box (1) is conical, and a discharge port (6) is opened at the bottom of the screening and filtering box (1).

2. A multi-stage screening filtering mechanism according to claim 1, characterized in that: The screening plate (3) is arranged obliquely on the inner side of the feed port (2); a surrounding plate (7) fixedly connected to the surface of the screening filter box (1) is fixedly mounted on the lower surface of the screening plate (3); and a material guide trough (8) located below the screening plate (3) is fixedly mounted on the surface of the screening filter box (1).

3. A multi-stage screening filtering mechanism according to claim 1, characterized in that: A plurality of support legs (9) are fixedly mounted on the surface of the screening and filtering box (1), and the spacing between two adjacent support legs (9) is equal.

4. A multi-stage screening filtering mechanism according to claim 1, characterized in that: The driving mechanism comprises an electric telescopic rod (10) and a limit box (11) fixedly mounted on the upper surface of the inner cavity of the screening filter box (1); a mounting plate (12) is fixedly mounted on the bottom of the electric telescopic rod (10); a motor (13) is fixedly mounted on the lower surface of the mounting plate (12); a connecting rod (14) fixedly connected to a conical screen filter cartridge (5) is fixedly mounted on the output end of the motor (13); and a limit plate (15) is movably mounted inside the limit box (11) and penetrates through the outer surface of the limit box (11) and is fixedly connected to the mounting plate (12).

5. The multi-stage screening filtering mechanism according to claim 1, characterized in that: A cylinder (16) is fixedly mounted on the bottom of the conical screening bucket (4); the conical screening filter cylinder (5) is located inside the cylinder (16) and a ring (17) located below the cylinder (16) is fixedly mounted on the bottom.

6. A multi-stage screening filtering mechanism according to claim 4, characterized in that: A protective cover (18) is fixedly mounted on the surface of the mounting plate (12), and the motor (13) is located inside the protective cover (18).

7. A multi-stage screening filtering mechanism according to claim 4, characterized in that: A fixing frame (19) is fixedly mounted on the surface of the motor (13), and the fixing frame (19) is fixedly mounted and connected to the surface of the mounting plate (12).

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