Semi-closed constant feeder

Abstract

The utility model relates to the technical field of material conveying, in particular to a semi-closed constant feeder which not only can automatically convey raw materials, but also can quantify the raw materials, so that the raw materials can be conveyed into a preparation kettle according to the specified weight, and the semi-closed constant feeder is convenient to use and high in reliability and practicability. Comprising a bottom plate and a belt conveyor, the belt conveyor is installed at the upper end of the bottom plate, and a conveying belt is arranged on the belt conveyor; the device further comprises a quantifying mechanism and a cleaning mechanism, the quantifying mechanism is located above the left portion of the conveying belt, the quantifying mechanism has the function of quantifying materials, and the cleaning mechanism is installed on the bottom plate and used for cleaning the conveying belt.

Description

Technical Field

[0001] This utility model relates to the technical field of material conveying, and in particular to a semi-enclosed quantitative feeder. Background Technology

[0002] In the production of granulated fertilizer, various raw materials required for fertilizer production need to be fed into a mixing tank via a feeder for thorough mixing before granulation. In the prior art, utility model patent application number 201721626560.3 discloses a belt conveyor, which mainly consists of a belt conveyor mechanism, limiting strips, a support frame, and a telescopic device. When conveying materials, it simply transports the materials to a designated position via the belt conveyor mechanism. However, the inventor believes that this conveyor has the following problems: it only has the function of conveying materials and cannot quantitatively convey them. In fertilizer production, various raw materials need to be conveyed into a mixing tank according to a specified weight for mixing. Therefore, the aforementioned conveyor is inconvenient to use, cannot quantitatively convey materials, and is not suitable for material conveying in the fertilizer production process. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a semi-enclosed quantitative feeder that can not only automatically convey raw materials, but also quantitatively feed them, so that the raw materials can be delivered into the preparation vessel according to the specified weight. It is convenient to use, reliable and practical.

[0004] This utility model discloses a semi-enclosed quantitative feeder, comprising a base plate and a belt conveyor. The belt conveyor is mounted on the upper part of the base plate and has a conveyor belt. It also includes a quantitative mechanism and a cleaning mechanism. The quantitative mechanism is located above the left side of the conveyor belt and has the function of quantitatively dispensing materials. The cleaning mechanism is mounted on the base plate and is used to clean the conveyor belt. In fertilizer production, the fertilizer mixing and preparation vessel is located below the right side of the belt conveyor, and the feed inlet of the fertilizer mixing and preparation vessel is also located below the right side of the conveyor belt. When various raw materials need to be transported to the mixing and preparation vessel for mixing, the various raw materials are sequentially quantitatively dispensed through the quantitative mechanism and then added to the conveyor belt. The belt conveyor then moves the quantitatively dispensed raw materials, allowing a certain amount of raw materials to be transported to the fertilizer preparation vessel for mixing. When adding raw materials to the fertilizer preparation vessel, it can not only automatically convey the raw materials but also quantitatively dispense them, ensuring that the raw materials are delivered to the preparation vessel according to the specified weight. It is convenient to use and has high reliability and practicality.

[0005] Preferably, the metering mechanism includes a lifting frame, a tension gauge, a connecting frame, a metering box, a sealing cover, and a latch. The tension gauge is fixedly installed at the lower end of the lifting frame, the connecting frame is fixedly installed at the lower end of the tension gauge, and the metering box is fixedly installed on the connecting frame. The metering box has a chamber, and both the upper and lower ends of the metering box have openings communicating with the chamber. The sealing cover is installed at the lower opening of the metering box via a hinge. A latch is provided between the metering box and the sealing cover. The metering box is located above the left side of the belt conveyor. The lifting frame is fixedly suspended on the workshop support. When raw materials need to be transported to the fertilizer preparation vessel via the belt conveyor, the raw materials are first added to the chamber of the metering box. Then, the weight of the raw materials in the metering box is estimated by observing the value displayed on the tension gauge until the weight of the raw materials in the metering box reaches the specified value. Then, the latch is opened, and then the sealing cover is opened, allowing the raw materials in the metering box to fall onto the conveyor belt through the lower opening of the metering box. Then, a certain amount of raw materials is transported to the fertilizer preparation vessel by the conveyor belt. This facilitates the metered transport of raw materials.

[0006] Preferably, the base plate further includes a support plate, a screw conveyor, a support frame, a cylinder, a discharge pipe, and a crushing mechanism. The screw conveyor is fixedly installed on the upper part of the base plate via the support plate, and the output end of the screw conveyor is located above the metering box. The cylinder is fixedly installed on the upper part of the base plate via the support frame, and a cavity is provided inside the cylinder. The upper end of the discharge pipe is connected to the lower part of the cavity in the cylinder, and the output end of the discharge pipe is connected to the input end of the screw conveyor. A valve is provided on the discharge pipe. The crushing mechanism is installed on the cylinder and has a crushing function. During fertilizer production, when it is necessary to add raw materials to the metering box for metering, the raw materials are first added to the cylinder, and then the crushing mechanism crushes the raw materials. The crushed raw materials enter the screw conveyor through the discharge pipe, and then the raw materials are transported to the metering box for metering via the screw conveyor. By crushing the raw materials, the volume of the raw materials is reduced and the surface area of ​​the raw materials is increased, which facilitates the mixing of the raw materials in the mixing vessel.

[0007] Preferably, the crushing mechanism includes a fixed frame, a motor A, a rotating shaft, and a perforated plate. The fixed frame is fixedly mounted on a support frame, the motor A is fixedly mounted on the upper end of the fixed frame, and the rotating shaft is rotatably mounted on the fixed frame. The upper end of the rotating shaft is connected to the output end of the motor A. Multiple sets of crushing blades are provided on the rotating shaft. The perforated plate is fixedly mounted inside the cavity of the cylinder and has multiple sets of through holes that connect vertically. The perforated plate is located below the rotating shaft. When raw materials are added into the cavity of the cylinder, the motor A is turned on, and the motor A drives the rotating shaft to rotate. The rotating shaft crushes the raw materials in the cavity of the cylinder through the crushing blades. The crushed raw materials fall into the lower part of the cavity of the cylinder through the through holes on the perforated plate. Then, the raw materials are conveyed into the screw conveyor through the discharge pipe. This facilitates the crushing process of the raw materials.

[0008] Preferably, the cleaning mechanism includes a collection box, two upright plates, two rotating shafts, a brush roller, a motor B, and two connecting mechanisms. The collection box is mounted on a base plate and has a collection chamber inside. The upper end of the collection box is open. Both upright plates are fixedly mounted on the base plate. The two rotating shafts are rotatably mounted on the two upright plates and are coaxial. The front and rear parts of the brush roller are connected to the two rotating shafts through the two connecting mechanisms. The brush roller is equipped with brushes that are in close contact with the lower end of the conveyor belt. The brush roller is located above the collection box. The motor B is fixedly mounted on one of the upright plates and connected to the input end of one of the rotating shafts. When it is necessary to clean impurities attached to the surface of the conveyor belt, the brush roller is mounted on the two rotating shafts through the two connecting mechanisms. Then, the motor B is turned on, and the motor B rotates the brush roller through the rotating shaft. During the rotation, the brush roller brushes down the impurities attached to the surface of the conveyor belt. The brushed impurities fall into the collection box for collection. As the conveyor belt is driven on the belt conveyor, all parts of the conveyor belt are cleaned by the brush roller, which facilitates the cleaning of impurities on the surface of the conveyor belt.

[0009] Preferably, the connecting mechanism includes a mounting block, which is fixedly mounted on the rotating shaft. Threaded holes are provided at both the front and rear ends of the brush roller, and the mounting block is fixedly connected to the brush roller by bolts. This arrangement facilitates the disassembly of the brush roller. When the conveyor belt does not need to be cleaned, the brush roller can be removed from the two rotating shafts, reducing wear between the conveyor belt and the brush roller.

[0010] Preferably, the belt conveyor further includes a protective cover and a feeding funnel. The protective cover is installed at the upper end of the belt conveyor, and the conveyor belt is located below the protective cover. The protective cover is provided with a slot that is open at both the top and bottom. The feeding funnel is installed at the upper end of the slot and is located below the metering box. By shielding the material with the protective cover, the mutual influence between the material and the outside world during the conveyor belt is reduced. This not only prevents external impurities from falling onto the material on the conveyor belt, but also reduces the diffusion of dust in the material into the air, resulting in high reliability.

[0011] Compared with the prior art, the advantages of this utility model are: it can not only automatically transport raw materials, but also measure the raw materials quantitatively, so that the raw materials can be transported into the preparation vessel according to the specified weight. It is convenient to use, reliable and practical. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the first isometric structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the second isometric structure of this utility model;

[0014] Figure 3 This is a schematic diagram of the metering mechanism;

[0015] Figure 4 This is a schematic diagram of the crushing mechanism;

[0016] Figure 5 This is a structural diagram of a belt conveyor, brush rollers, and conveyor belt, etc.

[0017] Figure 6 This is a structural diagram of the cleaning mechanism;

[0018] Figure 7 It is an exploded view of the brush roller, mounting block, and rotating shaft, etc.

[0019] The following are labels in the attached diagram: 1. Base plate; 2. Belt conveyor; 3. Conveyor belt; 4. Lifting frame; 5. Tensile gauge; 6. Connecting frame; 7. Metering box; 8. Sealing cover; 9. Lock; 10. Support plate; 11. Screw conveyor; 12. Support frame; 13. Cylinder; 14. Discharge pipe; 15. Fixing frame; 16. Motor A; 17. Rotating shaft; 18. Perforated plate; 19. Collection box; 20. Vertical plate; 21. Rotating shaft; 22. Brush roller; 23. Motor B; 24. Mounting block; 25. Protective cover; 26. Feed funnel. Detailed Implementation

[0020] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete. Example 1

[0021] like Figures 1 to 7 This utility model's semi-enclosed quantitative feeder includes a base plate 1, a belt conveyor 2, a quantitative mechanism, and a cleaning mechanism. The belt conveyor 2 is installed on the upper end of the base plate 1, and a conveyor belt 3 is provided on the belt conveyor 2. The quantitative mechanism is located above the left side of the conveyor belt 3 and has the function of quantitatively dispensing materials. The cleaning mechanism is installed on the base plate 1 and is used to clean the conveyor belt 3. When producing fertilizer, the fertilizer mixing and preparation kettle is located below the right side of the belt conveyor 2, and the feed inlet on the fertilizer mixing and preparation kettle is located below the right side of the conveyor belt 3. When various raw materials need to be transported to the mixing and preparation kettle for mixing, the various raw materials are sequentially quantitatively dispensed through the quantitative mechanism and then added to the conveyor belt 3. Then, the belt conveyor 2 drives the conveyor belt 3 to move the quantitatively dispensed raw materials, so that a certain amount of raw materials are transported to the fertilizer preparation kettle outside for mixing. When adding raw materials to the fertilizer preparation kettle, it can not only automatically convey the raw materials, but also quantitatively dispense the raw materials, so that the raw materials can be delivered to the preparation kettle according to the specified weight. It is convenient to use and has high reliability and practicality.

[0022] like Figure 1 and Figure 3 The metering mechanism includes a lifting frame 4, a tension gauge 5, a connecting frame 6, a metering box 7, a sealing cover 8, and a locking buckle 9. The tension gauge 5 is fixedly installed at the lower end of the lifting frame 4, the connecting frame 6 is fixedly installed at the lower end of the tension gauge 5, and the metering box 7 is fixedly installed on the connecting frame 6. The metering box 7 has a chamber inside, and both the upper and lower ends of the metering box 7 have openings communicating with the chamber. The sealing cover 8 is installed at the lower opening of the metering box 7 via a hinge. A locking buckle 9 is provided between the metering box 7 and the sealing cover 8. The metering box 7 is located above the left side of the belt conveyor 2. The lifting frame 4 is used to fix the lifting... Mounted on a support frame in the workshop, when raw materials need to be transported to the fertilizer preparation vessel via belt conveyor 2, the raw materials are first added to the chamber of metering box 7. Then, the weight of the raw materials in metering box 7 is estimated by observing the value displayed on the tension gauge 5 until the weight of the raw materials in metering box 7 reaches the specified value. Then, the lock 9 is opened, and then the sealing cover 8 is opened, allowing the raw materials in metering box 7 to fall onto the conveyor belt 3 through the opening at the bottom of metering box 7. Then, a certain amount of raw materials is transported to the fertilizer preparation vessel via the conveyor belt 3, which facilitates the quantitative transport of raw materials.

[0023] like Figure 1 It also includes a support plate 10, a screw conveyor 11, a support frame 12, a cylinder 13, a discharge pipe 14, and a crushing mechanism. The screw conveyor 11 is fixedly installed on the upper end of the base plate 1 via the support plate 10. The output end of the screw conveyor 11 is located above the metering box 7. The cylinder 13 is fixedly installed on the upper end of the base plate 1 via the support frame 12. A cavity is provided inside the cylinder 13. The upper end of the discharge pipe 14 is connected to the lower part of the cavity of the cylinder 13, and the output end of the discharge pipe 14 is connected to the input end of the screw conveyor 11. The discharge pipe 14 is equipped with... The cylinder 13 is equipped with a valve and a crushing mechanism. The crushing mechanism has a crushing function. During the fertilizer production process, when it is necessary to add raw materials to the metering box 7 for metering, the raw materials are first added to the cylinder 13. Then, the crushing mechanism crushes the raw materials. The crushed raw materials enter the screw conveyor 11 through the discharge pipe 14. Then, the raw materials are transported to the metering box 7 for metering through the screw conveyor 11. By crushing the raw materials, the volume of the raw materials is reduced and the surface area of ​​the raw materials is increased, which facilitates the mixing of the raw materials in the mixing tank.

[0024] like Figure 4The crushing mechanism includes a fixed frame 15, a motor A16, a rotating shaft 17, and a perforated plate 18. The fixed frame 15 is fixedly mounted on the support frame 12, the motor A16 is fixedly mounted on the upper end of the fixed frame 15, and the rotating shaft 17 is rotatably mounted on the fixed frame 15. The upper end of the rotating shaft 17 is connected to the output end of the motor A16. The rotating shaft 17 is provided with multiple sets of crushing blades. The perforated plate 18 is fixedly mounted in the cavity of the cylinder 13 and is provided with multiple sets of through holes that connect vertically. The perforated plate 18 is located below the rotating shaft 17. When the raw material is added into the cavity of the cylinder 13, the motor A16 is turned on, and the motor A16 drives the rotating shaft 17 to rotate. The rotating shaft 17 crushes the raw material in the cavity of the cylinder 13 through the crushing blades. The crushed raw material falls into the lower part of the cavity of the cylinder 13 through the through holes on the perforated plate 18. Then, the raw material enters the screw conveyor 11 through the discharge pipe 14 for conveying. This facilitates the crushing process of the raw material.

[0025] like Figure 5 and Figure 6 The cleaning mechanism includes a collection box 19, two upright plates 20, two rotating shafts 21, a brush roller 22, a motor B23, and two connecting mechanisms. The collection box 19 is mounted on the base plate 1 and has a collection chamber inside. The upper end of the collection box 19 is open. Both upright plates 20 are fixedly mounted on the base plate 1. The two rotating shafts 21 are rotatably mounted on the two upright plates 20, and the two rotating shafts 21 are coaxial. The front and rear parts of the brush roller 22 are connected to the two rotating shafts 21 through the two connecting mechanisms. The brush roller 22 is equipped with brushes that are in close contact with the lower end of the conveyor belt 3. The brush roller 22 is located above the collection box 19. The motor B23... The brush roller 22 is fixedly installed on one of the vertical plates 20, and the motor B23 is connected to the input end of one of the rotating shafts 21. When it is necessary to clean the impurities attached to the surface of the conveyor belt 3, the brush roller 22 is installed on the two rotating shafts 21 through two connecting mechanisms. Then, the motor B23 is turned on, and the motor B23 causes the brush roller 22 to rotate through the rotating shaft 21. During the rotation, the brush roller 22 brushes the impurities attached to the surface of the conveyor belt 3 downwards. The brushed impurities fall into the collection box 19 for collection. As the conveyor belt 3 is driven on the belt conveyor 2, all parts of the conveyor belt 3 are cleaned by the brush roller 22, which facilitates the cleaning of impurities on the surface of the conveyor belt 3.

[0026] like Figure 7 The connecting mechanism includes a mounting block 24, which is fixedly mounted on the rotating shaft 21. Threaded holes are provided at both the front and rear ends of the brush roller 22. The mounting block 24 is fixedly connected to the brush roller 22 by bolts. This arrangement facilitates the disassembly of the brush roller 22. When cleaning of the conveyor belt 3 is not required, the brush roller 22 can be removed from the two rotating shafts 21, reducing wear between the conveyor belt 3 and the brush roller 22. Example 2

[0027] like Figure 1 Based on Embodiment 1, the belt conveyor 2 also includes a protective cover 25 and a feed funnel 26. The protective cover 25 is installed on the upper end of the belt conveyor 2, and the conveyor belt 3 is located below the protective cover 25. The protective cover 25 is provided with a slot that is open at both the top and bottom. The feed funnel 26 is installed at the upper end of the slot and is located below the metering box 7. By shielding the material with the protective cover 25, the mutual influence between the material and the outside world when the material is conveyed on the conveyor belt 3 is reduced. This not only prevents external impurities from falling onto the material on the conveyor belt 3, but also reduces the diffusion of dust in the material into the air, resulting in high reliability.

[0028] The belt conveyor 2, tension gauge 5, screw conveyor 11, brush roller 22 and feed hopper 26 of the semi-enclosed quantitative feeder of this utility model are all purchased from the market. Technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0029] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A semi-enclosed quantitative feeder, comprising a base plate (1) and a belt conveyor (2), wherein the belt conveyor (2) is mounted on the upper end of the base plate (1), and a conveyor belt (3) is provided on the belt conveyor (2); characterized in that, It also includes a metering mechanism and a cleaning mechanism. The metering mechanism is located above the left side of the conveyor belt (3) and has the function of metering the material. The cleaning mechanism is installed on the base plate (1) and is used to clean the conveyor belt (3). The cleaning mechanism includes a collection box (19), two upright plates (20), two rotating shafts (21), a brush roller (22), a motor B (23), and two connecting mechanisms. The collection box (19) is installed on the base plate (1). A collection chamber is provided inside the collection box (19). The upper end of the collection box (19) is set as an opening. The two upright plates (20) are fixedly installed on the base plate (1). The two rotating shafts (21) are rotatably installed on the two upright plates (20) respectively. The two rotating shafts (21) are coaxial. The front and rear parts of the brush roller (22) are respectively connected to the two rotating shafts (21) through two connecting mechanisms. The brush roller (22) is provided with a brush. The brush is close to the lower end of the conveyor belt (3). The brush roller (22) is located above the collection box (19). The motor B (23) is fixedly installed on one of the upright plates (20). The motor B (23) is connected to the input end of one of the rotating shafts (21).

2. The semi-enclosed quantitative feeder as described in claim 1, characterized in that, The metering mechanism includes a hoisting frame (4), a tension gauge (5), a connecting frame (6), a metering box (7), a sealing cover (8), and a latch (9). The tension gauge (5) is fixedly installed at the lower end of the hoisting frame (4), the connecting frame (6) is fixedly installed at the lower end of the tension gauge (5), the metering box (7) is fixedly installed on the connecting frame (6), the metering box (7) has a chamber, and the upper and lower ends of the metering box (7) are provided with openings communicating with the chamber. The sealing cover (8) is installed at the opening at the lower end of the metering box (7) by a hinge. A latch (9) is provided between the metering box (7) and the sealing cover (8). The metering box (7) is located above the left side of the belt conveyor (2).

3. A semi-enclosed quantitative feeder as described in claim 2, characterized in that, The base plate (1) also includes a support plate (10), a screw conveyor (11), a support frame (12), a cylinder (13), a discharge pipe (14), and a crushing mechanism. The screw conveyor (11) is fixedly installed on the upper end of the base plate (1) through the support plate (10). The output end of the screw conveyor (11) is located above the metering box (7). The cylinder (13) is fixedly installed on the upper end of the base plate (1) through the support frame (12). A cavity is provided inside the cylinder (13). The upper end of the discharge pipe (14) is connected to the lower part of the cavity of the cylinder (13). The output end of the discharge pipe (14) is connected to the input end of the screw conveyor (11). A valve is provided on the discharge pipe (14). The crushing mechanism is installed on the cylinder (13) and has a crushing function.

4. A semi-enclosed quantitative feeder as described in claim 3, characterized in that, The crushing mechanism includes a fixed frame (15), a motor A (16), a rotating shaft (17), and a perforated plate (18). The fixed frame (15) is fixedly installed on the support frame (12). The motor A (16) is fixedly installed on the upper end of the fixed frame (15). The rotating shaft (17) is rotatably installed on the fixed frame (15). The upper end of the rotating shaft (17) is connected to the output end of the motor A (16). Multiple sets of crushing blades are provided on the rotating shaft (17). The perforated plate (18) is fixedly installed in the cavity of the cylinder (13). Multiple sets of through holes that connect vertically are provided on the perforated plate (18). The perforated plate (18) is located below the rotating shaft (17).

5. A semi-enclosed quantitative feeder as described in claim 1, characterized in that, The connecting mechanism includes a mounting block (24), which is fixedly mounted on the rotating shaft (21). Both ends of the brush roller (22) are provided with threaded holes, and the mounting block (24) is fixedly connected to the brush roller (22) by bolts.

6. A semi-enclosed quantitative feeder as described in claim 2, characterized in that, The belt conveyor (2) also includes a protective cover (25) and a feed hopper (26). The protective cover (25) is installed on the upper end of the belt conveyor (2), and the conveyor belt (3) is located below the protective cover (25). The protective cover (25) is provided with a slot that is open at the top and bottom. The feed hopper (26) is installed on the upper end of the slot and is located below the metering box (7).

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