Granular screening device for granular compound fertilizer

Abstract

The utility model relates to the technical field of particle screening, in particular to a particle screening device for particle compound fertilizer, which comprises a frame and a screen frame assembly elastically supported by the frame, a vibrating motor is fixedly arranged below the screen frame assembly, a feed opening is arranged above the screen frame assembly, a cylinder frame is rotatably arranged in the feed opening, and a cylinder is arranged in the cylinder frame. A supporting shaft used for rotatably supporting the barrel frame is arranged on the side wall of the discharging port, the barrel frame is detachably connected with the supporting shaft, the interior of the barrel frame is communicated with the outside, air holes are formed in the barrel frame, a brush located below the barrel frame is detachably arranged in the discharging port, and the brush is used for cleaning the outer wall of the barrel frame. The screen frame assembly comprises a screening cavity, a screen is arranged in the screening cavity, and the screening cavity communicates with the interior of the barrel frame through the air holes. Due to the fact that the barrel frame which rotates and is communicated with the screening cavity and the outside is arranged in the discharging opening, the barrel frame is not prone to being blocked, dust generated during discharging and discharging can be conveniently collected and treated in a centralized mode, and in addition, the rotating barrel frame can reduce the risk that materials are blocked during discharging.

Description

TECHNICAL FIELD

[0001] The utility model relates to the granule screening technical field, concretely relates to a granule screening device for granule compound fertilizer. BACKGROUND

[0002] The production process of granular fertilizer covers the pretreatment of raw materials, granule forming, drying, screening and selection, and the final packaging and other key steps. In the drying stage, the granules may encounter caking phenomenon or present uneven morphology. In order to improve this situation, the screening treatment link is particularly important, which aims to eliminate oversized particles and particles formed due to caking from the already dried material, so as to ensure that the particle size of the final product is uniform and consistent, and improve the quality of the product. In short, the screening treatment is a key step for fine classification of the dried material to ensure product quality.

[0003] At present, a large amount of dust is generated at the discharge opening and the discharge opening during the screening treatment of the device material, and the discharge opening is prone to blockage. The current dust removal structure has single function and is prone to blockage, which is not convenient for later maintenance. UTILITY MODEL CONTENT

[0004] The utility model provides a kind of granule screening device for granule compound fertilizer, to solve the technical problem of dust removal structure single function and not convenient for later maintenance in the prior art granule screening structure, high maintenance cost.

[0005] To solve the above problems, the granule screening device for granule compound fertilizer provided by the utility model adopts the following technical scheme:

[0006] It comprises a rack and a screen frame assembly elastically supported by the rack, a vibration motor is fixed below the screen frame assembly, a discharge opening is provided above the screen frame assembly, a cylinder frame is rotatably provided in the discharge opening, a support shaft for rotatably supporting the cylinder frame is provided on the sidewall of the discharge opening, the cylinder frame and the support shaft are detachably connected, and the inside of the cylinder frame is communicated with the outside through the support shaft on one side thereof, air holes are provided on the cylinder frame, a brush is detachably provided in the discharge opening below the cylinder frame, the bristles of the brush are in contact with the outer wall of the cylinder frame and are used for cleaning the outer wall of the cylinder frame.

[0007] The screen frame assembly comprises a screening cavity, a screen is provided in the screening cavity, and the screening cavity is communicated with the inside of the cylinder frame through the air holes.

[0008] Further, first connecting flanges are provided at both ends of the cylinder frame, two support shafts corresponding to the two ends of the cylinder frame are provided, and a second connecting flange is provided at the end of the support shaft close to the cylinder frame.

[0009] One of the support shafts is a hollow structure, and a through hole is provided at the end of the hollow structure close to the cylinder frame.

[0010] Further, the outer wall of the discharging port is provided with a bearing seat for rotatingly supporting a support shaft.

[0011] Further, the inner wall of the discharging port is provided with a U-shaped clamping groove below the cylinder frame, the brush includes a brush holder, the length direction of the brush holder is consistent with the axial direction of the cylinder frame, and the end of the brush holder is detachably clamped in the U-shaped clamping groove.

[0012] Further, the screen mesh is gradually inclined downward from one end close to the discharging port to the other end.

[0013] Further, the bottom end of the screening cavity is provided with the first discharging port, the side of the screening cavity away from the discharging port is provided with the second discharging port, the end of the screen mesh away from the discharging port is provided with a guide plate, and the guide plate extends out of the second discharging port.

[0014] Further, the screen mesh frame assembly is provided with a slot corresponding to the discharging port, the lower end of the discharging port extends into the screening cavity, and a gap is left between the side wall of the discharging port and the side wall of the slot.

[0015] The granular screening device for the granular compound fertilizer has the following beneficial effects:

[0016] 1. The air vents arranged on the cylinder frame allow dust generated in the screening process to pass through and are connected to the negative pressure fan for centralized treatment, thereby effectively reducing the diffusion of dust in the working environment and improving the dust removal efficiency.

[0017] 2. In the utility model, the rotating cylinder frame can reduce the risk of blockage of the material during the discharging process. The material slides down the surface of the rolling cylinder frame, avoiding static accumulation and reducing the blockage problem caused by material accumulation. The screening efficiency is improved, and the stable operation of the production line is ensured.

[0018] 3. In the utility model, the detachable connection between the cylinder frame and the support shaft and the detachable brush in the discharging port make the maintenance and cleaning of the equipment simple and fast. The operator can easily detach the cylinder frame and the brush for cleaning or replacement, thereby prolonging the service life of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0019] The above and other objects, features and advantages of the exemplary embodiments of the present application will be more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which:

[0020] The above and other objects, features and advantages of the exemplary embodiments of the present application will be more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which:

[0020] Figure 1 This is a schematic diagram of the granule screening device for granule compound fertilizer according to this utility model.

[0021] Figure 2 This is a cross-sectional view of the screen frame assembly and the feed inlet in this utility model;

[0022] Figure 3 for Figure 2 A magnified view of a portion of region A in the middle;

[0023] Figure 4 This is a cross-sectional schematic diagram of the feed inlet in this utility model;

[0024] Figure 5 for Figure 4 A magnified view of a portion of region B in the middle.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Frame; 2. Screen frame assembly; 20. Groove; 21. Screening chamber; 211. First discharge port; 212. Second discharge port; 22. Screen; 221. Guide plate; 3. Discharge port; 31. Cylinder frame; 311. Vent hole; 312. Through hole; 32. Support shaft; 33. Brush; 331. Brush frame; 34. U-shaped groove; 35. Bearing with seat. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Those skilled in the art should understand that the embodiments described below are only some, not all, of the embodiments disclosed. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0028] The number of any elements in the accompanying drawings is for illustrative purposes only and not as a limitation, and any naming is for distinction only and has no limiting meaning.

[0029] The principles and spirit of this utility model will be explained in detail below with reference to several representative embodiments.

[0030] An embodiment of the granule screening device for granular compound fertilizer provided by this utility model:

[0031] like Figures 1 to 5 As shown, the device includes a frame 1 and a screen frame assembly 2 elastically supported by the frame 1. A vibration motor is fixedly installed below the screen frame assembly 2, and a feed inlet 3 is provided above the screen frame assembly 2. Specifically, the frame 1 and the screen frame assembly 2 are elastically supported by springs. When the vibration motor vibrates, it drives the screen frame assembly 2 to vibrate, thereby achieving material screening through vibration.

[0032] The screen frame assembly 2 is provided with a slot 20 corresponding to the discharge port 3, the lower end of the discharge port 3 extends into the screening cavity 21, and a gap is left between the side wall of the discharge port 3 and the side wall of the slot 20.

[0033] The discharge port 3 is fixed to the rack 1 and does not contact and leave a gap between the slot 20, so as to avoid interference between the screen frame assembly 2 and the discharge port 3 when the screen frame assembly 2 vibrates.

[0034] In this embodiment, a cylinder frame 31 is rotatably arranged in the discharge port 3, the cylinder frame 31 is provided with a ventilation hole 311, a supporting shaft 32 for rotatably supporting the cylinder frame 31 is arranged on the side wall of the discharge port 3, and the inside of the cylinder frame 31 is communicated with the outside through the supporting shaft 32 on one side.

[0035] The cylinder frame 31 and the supporting shaft 32 are detachably connected, the two ends of the cylinder frame 31 are provided with first connecting flanges, and the two ends of the cylinder frame 31 are provided with two corresponding supporting shafts 32, and the end of the supporting shaft 32 close to the cylinder frame 31 is provided with a second connecting flange.

[0036] The outer wall of the discharge port 3 is provided with a bearing 35 for rotatably supporting the supporting shaft 32.

[0037] Specifically, one of the supporting shafts 32 is a hollow structure, and the end of the cylinder frame 31 close to the hollow supporting shaft 32 is provided with a through hole 312.

[0038] Specifically, in use, the hollow supporting shaft 32 is connected to a negative pressure fan, so that the dust generated during the discharging of the discharge port 3 is discharged through the hollow supporting shaft 32 for centralized treatment.

[0039] The other supporting shaft 32 is a non-hollow structure, the free end of the non-hollow supporting shaft 32 is provided with a driven pulley, a motor is arranged on the rack 1, a driving pulley is arranged on the rotating shaft of the motor, and the driven pulley and the driving pulley are connected through a belt transmission. The motor drives the cylinder frame 31 to rotate, and the material slides off the surface of the rotating cylinder frame 31 during discharging, and the dust generated is discharged for centralized treatment. In addition, the material slides off the surface of the rotating cylinder frame 31, which assists the discharging through the dynamic cylinder frame 31, helps to break the accumulation of the material, and reduces the possibility of blockage.

[0040] In this embodiment, the screen frame assembly 2 includes a screening cavity 21, the screening cavity 21 is provided with a screen 22, and the screening cavity 21 is communicated with the inside of the cylinder frame 31 through the ventilation hole 311.

[0041] The screen 22 is gradually inclined downward from one end close to the discharge port 3 to the other end.

[0042] The screen 22 is inclined downward at one end, which can realize the gradual conveying of the material on the screen 22 to the lower end for external discharge.

[0043] The bottom end of the screening cavity 21 is provided with a first discharge port 211, and the side of the end of the screening cavity 21 away from the discharge port 3 is provided with a second discharge port 212. The end of the screen 22 away from the discharge port 3 is provided with a guide plate 221 extending out of the second discharge port 212.

[0044] After the screening effect of the screen 22, larger particles will remain on the screen 22, and the screened material will be discharged from the first discharge port 211, and the material on the screen 22 will be discharged from the second discharge port 212.

[0045] The screening cavity 21 is in communication with the inside of the cylinder frame 31, and the inside of the cylinder frame 31 is in communication with the outside through the hollow structure of the shaft 32. In the actual use process, dust will inevitably be generated during the vibration screening work in the screening cavity 21, and the dust generated in the screening cavity 21 will also be discharged through the hollow structure of the shaft 32, avoiding the discharge of dust from the first discharge port 211 and the second discharge port 212, and affecting the working environment.

[0046] In this embodiment, the discharge port 3 is detachably provided with a brush 33 below the cylinder frame 31. The bristles of the brush 33 are in contact with the outer wall of the cylinder frame 31 and are used to clean the outer wall of the cylinder frame 31.

[0047] The inner wall of the discharge port 3 is provided with a U-shaped clamping groove 34 below the cylinder frame 31. The brush 33 includes a brush holder 331, the length direction of the brush holder 331 is consistent with the axial direction of the cylinder frame 31, and the end portion of the brush holder 331 is detachably clamped in the U-shaped clamping groove 34. The side view cross section of the U-shaped clamping groove 34 is U-shaped, and the opening faces upward. The end portion of the brush holder 331 is clamped into the U-shaped clamping groove 34 from the upper end.

[0048] In actual use, the rotation of the cylinder frame 31 realizes the continuous cleaning of the surface of the cylinder frame 31 by the brush 33, avoiding the blockage of the air holes 311 on the cylinder frame 31 and affecting the dust removal effect.

[0049] In addition, the cylinder frame 31 and the brush 33 are both detachable, which is convenient for subsequent cleaning, maintenance and replacement.

[0050] According to the above description of the present specification, those skilled in the art can also understand that the terms used such as "upper", "lower", "front", "rear", "left", "right", "width", "horizontal", "top", "bottom", "inner", "outer" and the like indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings of the present specification, which are only for the purpose of facilitating the description of the scheme of the present application and simplifying the description, and are not explicitly or implicitly indicated that the devices or elements involved must have the specific orientation, be constructed and operated in a specific orientation, therefore the above orientation or positional relationship terms cannot be understood or interpreted as a limitation on the scheme of the present application.

[0051] In addition, in the description of the present specification, the meaning of "a plurality of" is at least two, such as two, three or more, etc., unless otherwise explicitly and specifically limited.

Claims

1. A granule screening device for granular compound fertilizer, comprising a frame (1) and a screen frame assembly (2) elastically supported by the frame (1), wherein a vibration motor is fixedly provided below the screen frame assembly (2), and a feed inlet (3) is provided above the screen frame assembly (2), characterized in that, A cylindrical frame (31) is rotatably provided inside the discharge port (3). A support shaft (32) for rotatably supporting the cylindrical frame (31) is provided on the side wall of the discharge port (3). The cylindrical frame (31) and the support shaft (32) are detachably connected. The interior of the cylindrical frame (31) is connected to the outside through the support shaft (32) on one side. A vent hole (311) is provided on the cylindrical frame (31). A brush (33) located below the cylindrical frame (31) is detachably provided inside the discharge port (3). The bristles of the brush (33) are in contact with the outer wall of the cylindrical frame (31) and are used to clean the outer wall of the cylindrical frame (31). The screen frame assembly (2) includes a screening chamber (21), in which a screen (22) is provided, and the screening chamber (21) is connected to the inside of the cylinder frame (31) through a vent hole (311).

2. The granule screening device for granular compound fertilizer according to claim 1, characterized in that, Both ends of the tube frame (31) are provided with first connecting flanges, and the support shafts (32) are two correspondingly provided at both ends of the tube frame (31). The end of the support shaft (32) that is close to the tube frame (31) is provided with a second connecting flange. One of the support shafts (32) is a hollow structure, and the end of the tube frame (31) that is close to the hollow support shaft (32) is provided with a through hole (312).

3. The granule screening device for granular compound fertilizer according to claim 2, characterized in that, The outer wall of the discharge port (3) is provided with a seated bearing (35) for rotating the support shaft (32).

4. The granular screening device for granular compound fertilizer according to claim 1, characterized in that, The inner wall of the discharge port (3) is provided with a U-shaped slot (34) located below the cylinder frame (31). The brush (33) includes a bristle frame (331). The length direction of the bristle frame (331) is consistent with the axial direction of the cylinder frame (31). The end of the bristle frame (331) is detachably locked in the U-shaped slot (34).

5. The granule screening device for granular compound fertilizer according to claim 1, characterized in that, The screen (22) gradually slopes downward from one end near the feed inlet (3) to the other end.

6. The granule screening device for granular compound fertilizer according to claim 5, characterized in that, The bottom end of the screening chamber (21) is located at the first discharge port (211). The side of the screening chamber (21) away from the discharge port (3) is provided with a second discharge port (212). The end of the screen (22) away from the discharge port (3) is provided with a guide plate (221). The guide plate (221) extends out of the second discharge port (212).

7. The granule screening device for granular compound fertilizer according to claim 1, characterized in that, The screen frame assembly (2) is provided with a slot (20) corresponding to the discharge port (3). The lower end of the discharge port (3) extends into the screening chamber (21). A gap is left between the side wall of the discharge port (3) and the side wall of the slot (20).

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