A feeding device for fertilizer production

Abstract

This utility model discloses a feeding device for fertilizer production, including a hopper, a screw conveyor, a discharge port, and a fixed support. The hopper is funnel-shaped with a discharge port at the bottom. The screw conveyor includes a housing, a screw feeding rod, a drive motor, a quick-release chute, and a vibrating motor. The inlet end of the housing is connected to the discharge port of the hopper. The screw feeding rod is rotatably mounted inside the housing, with the distance between the front blades being greater than the distance between the rear blades. Therefore, by setting the screw feeding rod with a larger front blade distance than the rear blade distance, material blockage at the inlet is effectively reduced, improving feeding efficiency. The quick-release chute design makes cleaning blockages inside the screw conveyor convenient and quick, greatly shortening downtime for cleaning. The vibrating motor prevents material accumulation at the hopper discharge port, ensuring smooth material supply and making the production process more continuous and stable.

Description

Technical Field

[0001] This utility model relates to the technical field of fertilizer production equipment, and in particular to a feeding device for fertilizer production. Background Technology

[0002] In fertilizer production, the feeding device is an indispensable and important component. Existing feeding devices for fertilizer production typically use a combination of a traditional screw conveyor and a hopper, but this approach has many problems in practical use.

[0003] First, the blade spacing of traditional screw conveyors is often uniform, which can easily lead to inlet blockage when dealing with fertilizer materials of varying flowability and viscosity. For example, when processing materials like organic fertilizers, which contain a lot of fiber and are highly viscous, the material tends to accumulate at the screw conveyor inlet, making it difficult to transport smoothly and thus affecting production efficiency.

[0004] Secondly, cleaning is difficult when material blockage occurs inside the screw conveyor. Due to the lack of convenient cleaning channels, operators typically need to disassemble the entire screw conveyor to clear the blockage, which not only consumes a significant amount of time and manpower but also causes prolonged production line downtime, increasing production costs.

[0005] Furthermore, during the feeding process from the hopper to the screw conveyor, materials tend to accumulate at the hopper outlet, affecting the smooth supply of materials. This is especially true for fertilizer materials with uneven particle sizes, where small particles can easily form an arching effect at the outlet, hindering normal material flow. Moreover, existing feeding devices lack effective vibration-assisted feeding methods, making it impossible to promptly eliminate this accumulation and arching phenomenon.

[0006] Meanwhile, the overall structural design of traditional feeding devices is not reasonable enough, and their installation stability is poor. During long-term operation, they may shake or even shift, affecting the normal operation and service life of the equipment. Furthermore, they have poor adaptability to different production sites and process requirements. Utility Model Content

[0007] This utility model aims to at least partially solve one of the technical problems in the related art.

[0008] Therefore, the purpose of this utility model is to propose a feeding device for fertilizer production. By setting a spiral feeding rod with a front blade spacing greater than the rear blade spacing, the blockage of materials at the feed inlet is effectively reduced, and the feeding efficiency is improved. The quick-release material removal window design makes it convenient and quick to clean the blockage of materials inside the spiral conveyor, greatly shortening the equipment downtime for cleaning. The setting of the vibration motor can prevent materials from accumulating at the hopper outlet, ensuring a smooth supply of materials and making the production process more continuous and stable.

[0009] To achieve the above objectives, this utility model proposes a feeding device for fertilizer production, comprising a hopper, a screw conveyor, a discharge port, and a fixed support. The hopper is funnel-shaped with a discharge port at the bottom. The screw conveyor includes a housing, a screw feeding rod, a drive motor, a quick-release chute, and a vibrating motor. The inlet end of the housing is connected to the discharge port of the hopper. The screw feeding rod is rotatably mounted inside the housing, with the front blade spacing greater than the rear blade spacing. The drive motor is located at one end of the housing, and its output end is connected to the screw feeding rod. The quick-release chute is located on the side wall of the housing near the hopper. The vibrating motor is mounted on the outer side wall of the hopper near the discharge port, in a position opposite to the inlet end of the housing. The discharge port is located on the bottom side of the housing near the drive motor. The fixed support is fixedly mounted at the bottom of the housing.

[0010] This utility model discloses a feeding device for fertilizer production. By setting a spiral feeding rod with a front blade spacing greater than the rear blade spacing, it effectively reduces material blockage at the feed inlet and improves feeding efficiency. The quick-release material removal window design makes it convenient and quick to clean the blockage inside the spiral conveyor, greatly shortening the equipment downtime for cleaning. The setting of the vibration motor can prevent material from accumulating at the hopper outlet, ensuring smooth material supply and making the production process more continuous and stable.

[0011] In addition, the fertilizer production feeding device proposed in the above application may also have the following additional technical features:

[0012] Specifically, the quick-release material extraction window is connected to one side of the housing via a hinge, and a sealing gasket is provided between the quick-release material extraction window and the housing. The other side of the quick-release material extraction window is engaged and fixed to the housing via a rotating buckle.

[0013] Specifically, the spacing between the front blades of the spiral feed rod is 30-50 mm larger than the spacing between the rear blades.

[0014] Specifically, the vibration frequency range of the vibration motor is 0.5-2Hz, and the vibration motor and the drive motor are electrically connected to an external control system.

[0015] Specifically, the hopper is fixed to the ground by several support legs, the shell is fixed by a fixed bracket, and the inclination angle between the shell and the ground is 45°.

[0016] Drive motor: SEW brand DV series three-phase asynchronous motor, such as DV100L4 / BMG / HF, is selected. This motor has the characteristics of high torque and stable operation, which can provide stable power for the screw feeder and is suitable for the working intensity and environment of fertilizer production feeding device.

[0017] Vibration motor: Uses YZO series vibration motors from Hongda Vibration Motor Company, such as the YZO-10-2 model, with a vibration frequency range of 0.5-2Hz. It can effectively assist material feeding and has good vibration resistance and dust resistance, making it suitable for installation on the outer wall of the hopper.

[0018] External control system: The Siemens S7-200 SMART series PLC controller is adopted. Through programming, the speed of the drive motor and the vibration frequency of the vibrating motor can be flexibly controlled. Precise regulation can be achieved according to the material characteristics and conveying conditions to ensure the efficient and stable operation of the feeding device.

[0019] The advantages of this invention compared to existing technologies are as follows:

[0020] (1) By setting the front blade spacing to be greater than the rear blade spacing of the spiral feeding rod, the blockage of materials at the feed inlet is effectively reduced and the feeding efficiency is improved.

[0021] (2) The quick-release material removal window design makes it convenient and quick to clean the blockage inside the screw conveyor, greatly shortening the equipment downtime for cleaning and reducing production costs.

[0022] (3) The installation of the vibrating motor can prevent the material from accumulating at the hopper outlet, ensuring a smooth supply of material and making the production process more continuous and stable.

[0023] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0024] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

[0025] Figure 1 This is a perspective view of a feeding device for fertilizer production according to an embodiment of the present invention;

[0026] Figure 2This is a perspective view of a feeding device for fertilizer production according to another embodiment of the present invention;

[0027] Figure 3 This is a schematic diagram of the internal structure of a feeding device for fertilizer production according to an embodiment of the present invention;

[0028] Figure 4 for Figure 2 A magnified structural diagram of part A in the diagram;

[0029] Figure 5 This is a schematic diagram of the control connection of a feeding device for fertilizer production according to one embodiment of the present invention.

[0030] As shown in the figure: 1. Hopper; 2. Screw conveyor; 3. Discharge port; 4. Fixed bracket; 21. Housing; 22. Screw feeding rod; 23. Drive motor; 24. Quick-release material chute; 25. Vibrating motor; 11. Discharge port; 12. Support leg; 241. Buckle. Detailed Implementation

[0031] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention. Rather, the embodiments of the present invention include all variations, modifications, and equivalents falling within the spirit and scope of the appended claims.

[0032] The following description, in conjunction with the accompanying drawings, describes a feeding device for fertilizer production according to an embodiment of the present invention.

[0033] like Figures 1-5 As shown in the figure, a feeding device for fertilizer production according to an embodiment of the present invention includes a hopper 1, a screw conveyor 2, a discharge port 3, and a fixed support 4.

[0034] It is understandable that the funnel-shaped design of the hopper 1 allows it to easily accommodate fertilizer materials and utilizes the material's own gravity to naturally concentrate the material at the bottom outlet 11, preparing it for subsequent conveying.

[0035] The screw conveyor 2 is the core component of the entire feeding device. The housing 21 serves as the external protective structure for the screw conveyor 22, and its inlet end is connected to the outlet 11 of the hopper 1, ensuring that materials can smoothly enter the screw conveyor from the hopper. The screw conveyor 22 is rotatably mounted inside the housing 21, and its front blade spacing is larger than its rear blade spacing. This design is to better accommodate material conveying. During the feeding stage, the larger front blade spacing provides more space for the newly entered material, reducing the risk of material accumulation and blockage at the inlet. As the material is conveyed to the rear end of the screw conveyor 22, the smaller rear blade spacing ensures that the material is stably pushed forward.

[0036] The drive motor 23 is located at one end of the housing 21, and its output end is connected to the screw feed rod 22. By providing power, it drives the screw feed rod 22 to rotate, thereby realizing the conveying of materials.

[0037] The quick-release discharge window 24 is located on the side wall of the housing 21 near the hopper 1, designed to address potential material blockages. When material blockage occurs inside the screw conveyor 2, the operator can quickly open the quick-release discharge window 24 to clear the blockage, and then close it after clearing. This design greatly improves the convenience of equipment maintenance and reduces downtime caused by blockage clearing.

[0038] The vibratory motor 25 is installed on the outer wall of the hopper 1 near the discharge port 11, in a position opposite to the feed end of the housing 21. The vibration generated by the vibratory motor 25 during operation can effectively prevent material from accumulating at the discharge port 11 of the hopper 1, and promote smoother material entry into the housing 21 of the screw conveyor device 2, ensuring the continuity of the feeding process.

[0039] The discharge port 3 is located on the bottom side of the housing 21 near the drive motor 23. The material conveyed by the spiral feeding rod 22 is finally discharged from here and enters the subsequent fertilizer production process.

[0040] The fixed bracket 4 is fixedly installed at the bottom of the housing 21. It plays the role of supporting and stabilizing the entire screw conveyor 2, ensuring that the equipment will not shake or shift during operation, and ensuring that the feeding work can be carried out stably and reliably.

[0041] In one embodiment of this utility model, such as Figures 1-5 As shown, the quick-release material outlet 24 is connected to one side of the housing 21 via a hinge, and a sealing gasket is provided between the quick-release material outlet 24 and the housing 23. The other side of the quick-release material outlet 24 is engaged and fixed to the housing 21 via a rotating buckle 241.

[0042] Understandably, when cleaning the inside of the screw conveyor 2 is required, the operator first approaches the side of the housing 21 where the quick-release outlet window 24 is located. The quick-release outlet window 24 is connected to one side of the housing 21 via a hinge, allowing it to be opened like a door by rotating around the hinge. The operator simply needs to manually rotate the quick-release outlet window 24 outwards around the hinge axis to open it. A sealing gasket is provided between the quick-release outlet window 24 and the housing 21. This gasket ensures that no material leaks from the gap between the quick-release outlet window 24 and the housing 21 during normal operation, and also prevents dust and other impurities from entering the screw conveyor 2 and affecting material transport.

[0043] On the other side of the quick-release discharge window 24, it is secured to the housing 21 by a rotating buckle 241. Before opening the quick-release discharge window 24, the operator must first rotate the buckle 241 to disengage it from the housing 21. After cleaning, the quick-release discharge window 24 is rotated back to its original position. At this time, the other side of the quick-release discharge window 24 is close to the corresponding position on the housing 21. Then, the rotating buckle 241 is rotated to the position where it engages with the housing 21, thus firmly fixing the quick-release discharge window 24 to the housing 21. The entire process is simple and convenient, and can quickly complete the cleaning and maintenance work inside the screw conveyor 2, effectively improving the operating efficiency and maintenance convenience of the equipment.

[0044] In one embodiment of this utility model, such as Figures 1-5 As shown, the spacing between the front blades of the spiral feed rod 22 is 30-50mm larger than the spacing between the rear blades.

[0045] It is understood that the spacing between the front blades of the screw feeder 22 is 30-50mm larger than the spacing between the rear blades. When fertilizer material enters the housing 21 of the screw conveyor 2 from the hopper 1 through the discharge port 11, it first comes into contact with the front part of the screw feeder 22. Since the fertilizer material may exhibit large particle agglomeration and clumping upon initial entry, and has a high bulk density, the larger blade spacing at the front provides ample space for these materials. During the rotation of the screw feeder 22 by the drive motor 23, the larger blade spacing at the front can more effectively disperse these accumulated materials and initially propel them backward. For example, when processing organic fertilizer containing a large amount of fibrous impurities, the larger blade spacing can prevent blockage due to insufficient space at the initial stage, ensuring that the material can smoothly enter the conveying process.

[0046] As the material gradually moves towards the rear end under the action of the screw feeder 22, its state gradually becomes relatively loose and more evenly distributed. At this time, the smaller-spaced blades at the rear end begin to play their role. The smaller spacing between the rear blades allows for closer contact between the blades and the material, generating a stronger pushing force on the material. This ensures that the material can be conveyed along the housing 21 at a stable speed and flow rate towards the end closer to the drive motor 23, and finally discharged from the discharge port 3. This coordinated work of the front and rear blades with different spacings ensures that the material enters smoothly during the feeding stage and that it is steadily propelled during the subsequent conveying process. This greatly improves the conveying efficiency and reliability of the entire feeding device and effectively adapts to the diverse material characteristics in fertilizer production.

[0047] In one embodiment of this utility model, such as Figures 1-5 As shown, the vibration frequency range of the vibration motor 25 is 0.5-2Hz, and the vibration motor 25 and the drive motor 23 are electrically connected to the external control system.

[0048] It is understandable that, for the vibrating motor 25, when fertilizer material begins to be fed from the hopper 1 through the discharge port 11 into the shell 21 of the screw conveyor 2, if the material exhibits high viscosity and poor flowability, such as when processing organic fertilizer rich in moisture or compound fertilizer raw materials prone to clumping, the external control system will increase the vibration frequency of the vibrating motor 25 to close to 2Hz. Under this higher frequency vibration, the vibrating motor 25, installed on the outer wall of the hopper 1 near the discharge port 11, generates strong and high-frequency vibrations. This vibration, transmitted to the hopper 1, can effectively break the adhesion between materials, allowing the material to slide more smoothly from the discharge port 11 into the screw conveyor 2 under the action of gravity, avoiding material accumulation and blockage at the discharge port, and ensuring the continuity of the feeding process.

[0049] Meanwhile, the external control system can remotely start or stop the drive motor 23 to maintain production efficiency, and the speed of the drive motor 23 can be better matched with the working state of the vibrating motor 25 and the material conveying situation. When the vibrating motor 25 vibrates at high frequency to handle viscous materials, the external control system may appropriately reduce the speed of the drive motor 23 to ensure that the screw conveyor 22 will not jam or overload due to a sudden large influx of material. When the vibrating motor 25 operates at low frequency to handle materials with good flowability, the external control system will appropriately increase the speed of the drive motor 23 to ensure that the material can be conveyed in a timely manner and maintain production efficiency.

[0050] In one embodiment of this utility model, such as Figures 1-5 As shown, the hopper 1 is fixed to the ground by several support legs 12, the shell 21 is fixed by a fixed bracket 4, and the inclination angle between the shell 21 and the ground is 45°.

[0051] It is understood that during the installation phase of the device, the hopper 1 is fixed to the ground by several support legs 12. These support legs 12 are evenly distributed at the bottom of the hopper 1, and their number and position are rationally planned according to the size and weight of the hopper 1.

[0052] The fixed bracket 4 is usually designed to fit the shape of the housing 21. The fixed bracket 4 is connected to the housing 21 by welding to ensure the connection is firm.

[0053] The housing 21 is inclined at a 45° angle to the ground. During operation, when fertilizer material enters the housing 21 of the screw conveyor 2 from the hopper 1 through the outlet 11, the material moves under the combined action of gravity and the screw feed rod 22. The 45° inclination angle allows the material to generate a downward component force along the housing 21 under gravity, assisting the screw feed rod 22 in propelling the material forward.

[0054] It should be noted that the control method of this application can be automatically controlled by a controller. The control method of the controller can be implemented by simple programming by those skilled in the art, which is common knowledge in the field. Furthermore, this application is mainly used to protect mechanical structures, so the control method and circuit connection will not be explained in detail here.

[0055] Specifically, in the actual production process, the various components of the fertilizer production feeding device work together, and the specific process is as follows:

[0056] The external control system is activated, and the system sends start commands to the drive motor 23 and the vibrating motor 25. The vibrating motor 25 is installed on the outer wall of the hopper 1 near the discharge port 11. When it is detected that the material is about to enter the screw conveyor 2 from the discharge port 11, if the material has high viscosity and poor flowability, the external control system will increase the vibration frequency of the vibrating motor 25 to close to 2Hz. The strong high-frequency vibration generated is transmitted to the hopper 1, effectively breaking the adhesion between the materials and causing the materials to slide smoothly from the discharge port 11 into the housing 21 of the screw conveyor 2.

[0057] After the material enters the housing 21, it first contacts the front end of the screw feeder 22. Since the distance between the front blades is 30-50 mm larger than that between the rear blades, the larger blade spacing provides ample space for materials that may initially agglomerate, clump, or have high bulk density. The drive motor 23 is located at one end of the housing 21, and its output is connected to the screw feeder 22, driving the screw feeder 22 to rotate. The larger blade spacing at the front end disperses the accumulated material and initially pushes it backward.

[0058] As the material gradually moves towards the rear end under the action of the screw feeder 22, the material becomes relatively loose and evenly distributed. At this time, the smaller-spaced blades at the rear end begin to play their role. The rear blades have a closer contact with the material, generating a stronger pushing force on the material, ensuring that the material is conveyed along the housing 21 towards the end closer to the drive motor 23 at a stable speed and flow rate.

[0059] When the material is conveyed to the bottom side near the drive motor 23, it is discharged from the discharge port 3 and enters the subsequent fertilizer production process.

[0060] If material blockage occurs inside the screw conveyor 2 during operation, the operator can go to the side of the housing 21 equipped with the quick-release discharge window 24. First, rotate the rotating buckle 241 on the other side of the quick-release discharge window 24 to disengage it from the housing 21. Then, manually rotate the quick-release discharge window 24 outward around the hinge axis to open it. The sealing gasket between the quick-release discharge window 24 and the housing 21, which prevents material leakage and dust entry during normal operation, is opened at this time to clear the internal blockage. After cleaning, return the quick-release discharge window 24 to its original position, and then rotate the buckle 241 to lock it into place with the housing 21, ensuring the continued stable operation of the device.

[0061] During material conveying, the external control system continuously monitors the operating status of the vibrating motor 25 and the drive motor 23, as well as the material conveying process. When the vibrating motor 25 is vibrating at high frequency to process viscous materials, the external control system appropriately reduces the speed of the drive motor 23 to prevent the screw feeder 22 from jamming or overloading due to a large influx of material. When the vibrating motor 25 is operating at low frequency to process materials with good flowability, the external control system appropriately increases the speed of the drive motor 23 to ensure that the material is conveyed away in a timely manner and to maintain efficient and stable production.

[0062] In summary, the feeding device for fertilizer production according to this utility model effectively reduces material blockage at the feed inlet and improves feeding efficiency by setting a spiral feeding rod with a front blade spacing greater than the rear blade spacing. The quick-release material removal window design makes it convenient and quick to clean the blockage inside the spiral conveyor, greatly shortening the equipment downtime for cleaning. The vibrating motor prevents material from accumulating at the hopper outlet, ensuring a smooth supply of materials and making the production process more continuous and stable.

[0063] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0064] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0065] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A material loading device for fertilizer production, characterized by, It includes a hopper (1), a screw conveyor (2), a discharge port (3), and a fixed support (4), wherein, The hopper (1) is funnel-shaped and has a discharge port (11) at the bottom; The screw conveyor (2) includes a housing (21), a screw feed rod (22), a drive motor (23), a quick-release material outlet (24), and a vibration motor (25), wherein, The feed end of the shell (21) is connected to the discharge port (11) of the hopper (1); The spiral feeding rod (22) is rotatably disposed inside the housing (21), and the front blade spacing of the spiral feeding rod (22) is greater than the rear blade spacing; The drive motor (23) is disposed at one end of the housing (21), and the output end of the drive motor (23) is connected to the spiral feeding rod (22); The quick-release hopper (24) is located on one side wall of the housing (21) near the hopper (1); The vibration motor (25) is installed on the outer wall of the hopper (1) near the discharge port (11), in a position area opposite to the feed end of the housing (21); The discharge port (3) is located on the bottom side of the housing (21) near the drive motor (23); The fixed bracket (4) is fixedly installed at the bottom of the housing (21).

2. The feeding device for fertilizer production according to claim 1, characterized in that, The quick-release material outlet window (24) is connected to one side of the housing (21) via a hinge, and a sealing gasket is provided between the quick-release material outlet window (24) and the housing (21). The other side of the quick-release material outlet window (24) is engaged and fixed to the housing (21) via a rotating buckle (241).

3. The feeding device for fertilizer production according to claim 1, characterized in that, The spacing between the front blades of the spiral feed rod (22) is 30-50 mm larger than the spacing between the rear blades.

4. The feeding device for fertilizer production according to claim 1, characterized in that, The vibration frequency range of the vibration motor (25) is 0.5-2Hz, and the vibration motor (25) and the drive motor (23) are electrically connected to the external control system.

5. The feeding device for fertilizer production according to claim 1, characterized in that, The hopper (1) is fixed to the ground by several support legs (12), the shell (21) is fixed by a fixed bracket (4), and the inclination angle of the shell (21) to the ground is 45°.

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