Drum screen for organic fertilizer separation

Abstract

The utility model discloses a drum screen for organic fertilizer sorting, which comprises a shell, a screen drum, a main shaft and a driving mechanism, the driving mechanism is arranged outside the shell, the driving mechanism is in transmission connection with the main shaft, the main shaft is fixed with the screen drum, the screen drum is driven by the driving mechanism to rotate in the shell, one end of the shell is connected with a feeding port, and the other end of the shell is connected with a discharging port. The bottom of the shell is provided with an under-sieve discharge port and an over-sieve discharge port, the material flowing direction is the front-back direction, the feeding port is located at the front end of the shell, the over-sieve discharge port is located on the rear side of the shell, the upper portions of the left side and the right side of the shell are obliquely arranged, a plurality of overhaul ports are formed side by side from front to back, and each overhaul port is correspondingly provided with a cover plate. A handle is arranged on the cover plate, the top end of the cover plate is hinged to the shell, and the bottom end of the cover plate is connected with the shell through an air cylinder. The drum screen is large in inspection and repair area and good in screen drum cleaning effect.

Description

Technical Field

[0001] The utility model relates to the technical field of screening, in particular to a drum screen for selecting organic fertilizers. Background Art

[0002] Organic fertilizer refers to a fertilizer rich in organic matter and microorganisms made from organic materials such as animal and plant residues, livestock and poultry manure, and domestic garbage through composting, fermentation, and enzymatic processes. In modern industrial production, various organic substances after fermentation are generally further processed and eventually made into granular fertilizers, which are convenient for storage and transportation.

[0003] In the process of organic fertilizer granulation, it is necessary to screen the materials after granulation and drying in the granulator. The materials that meet the specifications enter the next process, and the materials that do not meet the specifications are returned to the crusher for crushing. The screening equipment generally adopts a drum screen. For example, a drum screen for construction waste separation disclosed in the Chinese utility model patent with publication number CN210357952U can complete the screening of materials. However, the existing drum screen generally only has an observation and maintenance window at the end of the drum screen, and the equipment is tall and the area for observation or maintenance is limited, which is not conducive to the maintenance of the equipment status. Utility Model Content

[0004] The utility model aims to provide a drum screen for selecting and sorting organic fertilizers, so as to solve the problem that the existing drum screen is inconvenient to inspect and repair.

[0005] In order to solve the above problems, the utility model adopts the following technical solutions:

[0006] The invention discloses a drum screen for selecting and sorting organic fertilizer, comprising a shell, a screen drum, a main shaft and a driving mechanism, wherein the driving mechanism is arranged outside the shell, the driving mechanism is connected to the main shaft in driving connection, the main shaft is fixed to the screen drum, the screen drum rotates in the shell under the drive mechanism, one end of the shell is connected to a feed port, the bottom of the shell is provided with an under-screen discharge port and an over-screen discharge port, with the material flow direction as the front-to-back direction, the feed port is located at the front end of the shell, the over-screen discharge port is located at the rear side of the shell, the upper left and right sides of the shell are inclinedly arranged, and a plurality of inspection ports are arranged side by side from front to back, each inspection port is respectively provided with a cover plate, a handle is provided on the cover plate, the top end of the cover plate is hinged to the shell, and the bottom end of the cover plate is connected to the shell through a cylinder.

[0007] Optionally, a cleaning roller is arranged between the screen drum and the shell, and the cleaning roller is arranged parallel to the main shaft. The cleaning roller is provided with bristles, which contact the screen drum. Both ends of the cleaning roller extend out of the front and rear ends of the shell, and are rotatably connected to the shell through bearings and bearing seats.

[0008] Optionally, it also includes an adjusting support and an adjusting sealing plate. The size of the adjusting sealing plate is larger than the mounting hole of the cleaning roller on the shell. The adjusting support and the adjusting sealing plate are provided with long holes or multiple mounting holes. The bearing seat is detachably mounted on the adjusting support by bolts. The adjusting sealing plate is sleeved on the outside of the cleaning roller and is attached to the end of the shell.

[0009] Optionally, a brush cleaning roller is provided between the screen drum and the shell. The brush cleaning roller is arranged in parallel with the cleaning roller and has the same length. Scrapers are evenly distributed around the brush cleaning roller. The length extension direction of the scraper is parallel to the cleaning roller.

[0010] Optionally, the shell is supported by a support frame, and the legs of the support frame located at the front side are higher than the legs located at the rear side.

[0011] By adopting the above technical solution, the utility model has the following advantages:

[0012] The utility model has multiple inspection ports arranged on the side of the shell, and the observation or inspection area covers the axial direction of the screen drum from front to back, expanding the area that can be observed or inspected, which is beneficial to equipment maintenance, and the inspection port can automatically open and close the cover plate through the cylinder, which is convenient for operation. In addition, the cleaning roller and the brush cleaning roller are used together for cleaning, which can ensure the cleaning effect of the screen drum and improve the screening efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the main structure of one embodiment of the utility model;

[0014] Figure 2 yes Figure 1 Top view;

[0015] Figure 3 yes Figure 1 Left view of;

[0016] Figure 4 yes Figure 3 Installation diagram of the middle bearing seat;

[0017] Figure 5 yes Figure 1 A local enlarged schematic diagram of the middle A;

[0018] Figure 6 It is a schematic diagram of the positions of the cleaning roller and the bristle cleaning roller in another embodiment of the utility model.

[0019] Figure numerals: 1. shell, 2. screen drum, 3. main shaft, 4. motor, 5. driving pulley, 6. driven pulley, 7. reducer, 8. feed port, 9. discharge port under the screen, 10. discharge port above the screen, 11. cover plate, 12. handle, 13. cylinder, 14. cleaning roller, 15. bearing seat, 16. adjustment support, 17. adjustment sealing plate, 18. brush cleaning roller, 19. scraper, 20. support frame. DETAILED DESCRIPTION

[0020] In order to make the technical purpose, technical scheme and beneficial effects of the utility model clearer, the following Figure 1-6 The technical solution of the utility model is further illustrated with specific embodiments. Example

[0021] A drum screen for selecting organic fertilizer comprises a shell 1, a screen drum 2, a main shaft 3 and a driving mechanism, wherein the driving mechanism comprises a motor 4, a driving pulley 5, a driven pulley 6 and a reducer 7, the driving mechanism is arranged outside the shell 1, the driving mechanism is connected to the main shaft 3 in transmission, the main shaft 3 is fixed to the screen drum 2, the screen drum 2 rotates in the shell 1 under the drive mechanism, one end of the shell 1 is connected with a feed port 8, the bottom of the shell 1 is provided with a screen under discharge port 9 and a screen over discharge port 10, the feed port 8 is located at the front end of the shell 1, the screen over discharge port 10 is located at the rear side of the shell 1, the upper parts of the left and right sides of the shell 1 are inclined, and a plurality of inspection ports are arranged side by side from front to back, each inspection port is correspondingly provided with a cover plate 11, a handle 12 is arranged on the cover plate 11, the top end of the cover plate 11 is hinged to the shell 1, and the bottom end of the cover plate 11 is connected to the shell 1 through a cylinder 13. It is understandable that the cylinder 13 may also be replaced by other retractable components, such as a hydraulic cylinder.

[0022] In this embodiment, the inspection ports are arranged on the left and right sides of the shell 1 from front to back, and observation or inspection areas are provided in the axial direction of the screen drum 2, which is conducive to equipment maintenance, and the cover plate 11 at the inspection port can be opened and closed automatically, without the need to manually remove the cover plate 11, saving time and effort and improving maintenance efficiency.

[0023] Furthermore, as one of the embodiments of the utility model, a cleaning roller 14 is arranged between the screen drum 2 and the shell 1, and the cleaning roller 14 is arranged parallel to the main shaft 3. The cleaning roller 14 is provided with bristles, and the bristles are in contact with the screen drum 2. Both ends of the cleaning roller 14 extend out of the front and rear ends of the shell 1, and are rotatably connected to the shell 1 through bearings and bearing seats 15.

[0024] Furthermore, as one of the embodiments of the utility model, it also includes an adjusting support 16 and an adjusting sealing plate 17. The size of the adjusting sealing plate 17 is larger than the mounting hole of the cleaning roller 14 on the shell 1. The adjusting support 16 and the adjusting sealing plate 17 are provided with long holes or multiple mounting holes. The bearing seat 15 is detachably mounted on the adjusting support 16 by bolts. The adjusting sealing plate 17 is sleeved on the outside of the cleaning roller 14 and is attached to the end of the shell 1. The adjustable position of the cleaning roller 14 is more conducive to the cooperation between the cleaning roller 14 and the screen drum 2 to ensure the cleaning effect. In addition, when the position of the cleaning roller 14 is changed by adjusting the position of the bearing seat 15, the adjusting sealing plate 17 can always seal the mounting hole of the cleaning roller 14 on the shell 1 to maintain the sealing of the end of the shell 1.

[0025] Furthermore, since the material to be screened still has a certain humidity and temperature, the bristles of the cleaning roller 14 are prone to adhere to the organic fertilizer particles during the cleaning process, affecting the continuous cleaning of the screen cylinder 2. A bristle cleaning roller 18 is arranged between the screen cylinder 2 and the shell 1. The bristle cleaning roller 18 is arranged parallel to the cleaning roller 14 and has the same length. Scrapers 19 perpendicular to the axial direction of the bristle cleaning roller 18 are evenly distributed around the bristle cleaning roller 18, and the length extension direction of the scraper 19 is parallel to the cleaning roller 14.

[0026] The bristle cleaning roller 18 and the shell 1 can be either fixedly connected or rotatably connected. When the cleaning roller 14 rotates driven by the rotation of the screen drum 2, the bristles can be in cyclic contact with the scraper 19, and the materials adhered between the bristles can be scraped off without affecting the bristles continuously cleaning the screen drum 2.

[0027] Furthermore, as one of the embodiments of the utility model, the shell 1 is supported by a support frame 20, and the support legs of the support frame 20 located on the front side are higher than the support legs located on the rear side, so that the drum screen is tilted as a whole. When small particle materials fall into the under-screen discharge port 9 from the screening holes of the screen drum 2, the over-screen materials can continue to be transported to the rear side until they fall into the over-screen discharge port 10.

[0028] When the utility model is working, the organic fertilizer material enters the housing 1 from the feed port 8, the driving mechanism drives the screen drum 2 to rotate, and the organic fertilizer material rolls with the rotation of the screen drum 2. In this process, the small particle material falls from the screening hole of the screen drum 2 into the under-screen discharge port 9, and the material on the screen continues to be transported to the rear side until it falls into the upper screen discharge port 10. During the rotation of the screen drum 2, the cleaning roller 14 cleans the screen drum 2, and the bristle cleaning roller 18 cleans the bristles of the cleaning roller 14. When it is necessary to observe the working state in the housing 1 or temporarily repair the parts in the housing 1, the cover plate 11 can be quickly opened by the cylinder 13 to expose the inspection port.

[0029] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model 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 a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0031] The above embodiments do not impose any formal restrictions on the shape, material, structure, etc. of the utility model. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the utility model are within the protection scope of the technical solution of the utility model.

[0032] It should be understood that although this specification is described according to implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A drum screen for selecting organic fertilizer, comprising a shell, a screen drum, a main shaft and a driving mechanism, wherein the driving mechanism is arranged outside the shell, the driving mechanism is connected to the main shaft in a transmission manner, the main shaft is fixed to the screen drum, the screen drum rotates in the shell under the drive mechanism, one end of the shell is connected to a feed port, the bottom of the shell is provided with a screen under discharge port and a screen over discharge port, the material flow direction is the front and rear direction, the feed port is located at the front end of the shell, and the screen over discharge port is located at the rear side of the shell, Features: The upper left and right sides of the shell are inclined, and multiple inspection ports are arranged side by side from front to back. A cover plate is correspondingly arranged at each inspection port, and a handle is arranged on the cover plate. The top end of the cover plate is hinged to the shell, and the bottom end of the cover plate is connected to the shell through a cylinder.

2. A drum screen for selecting organic fertilizer according to claim 1, Features: A cleaning roller is arranged between the screen drum and the shell, and the cleaning roller is arranged parallel to the main shaft. The cleaning roller is provided with bristles, which contact the screen drum. Both ends of the cleaning roller extend out of the front and rear ends of the shell, and are rotatably connected to the shell through bearings and bearing seats.

3. A drum screen for selecting organic fertilizer according to claim 2, Features: It also includes an adjusting support and an adjusting sealing plate. The size of the adjusting sealing plate is larger than the mounting hole of the cleaning roller on the shell. The adjusting support and the adjusting sealing plate are provided with long holes or multiple mounting holes. The bearing seat is detachably mounted on the adjusting support by bolts. The adjusting sealing plate is sleeved outside the cleaning roller and is attached to the end of the shell.

4. A drum screen for selecting organic fertilizer according to claim 2, Features: A brush cleaning roller is also arranged between the screen drum and the shell. The brush cleaning roller is arranged parallel to the cleaning roller and has the same length. Scrapers are evenly distributed around the brush cleaning roller, and the length extension direction of the scrapers is parallel to the cleaning roller.

5. A drum screen for selecting organic fertilizer according to claim 1, Features: The shell is supported by a support frame, and the support legs of the support frame located at the front side are higher than the support legs located at the rear side.

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