A fine material dispenser

Abstract

The utility model discloses a kind of fine material blanking devices, including fine material hopper hoist, the outside of fine material hopper hoist is provided with fine material bin, the bottom of fine material bin is installed with first fine material blanking device, and the bottom of first fine material blanking device is connected with material pipe, the end of material pipe is connected with the feed inlet of fine material hopper hoist, the outside of fine material hopper hoist is connected with buffer bin, and buffer bin is provided with the material scraping rod for scraping buffer bin inner wall material in, the bottom of fine material bin is provided with the material conveying pipe for conveying material, this fine material blanking device is set to interlock by first fine material blanking device frequency, start-stop with fine material hopper hoist current, when fine material hopper hoist operating current reduces to approach no-load value, interlocked first fine material blanking device starts operation, fine material hopper hoist starts to buffer bin material, when fine material hopper hoist is up to predetermined value, interlocked first fine material blanking device stops, realize automatic buffer bin material operation.

Description

Technical Field

[0001] This utility model relates to the field of feeder technology, specifically a fine material feeder. Background Technology

[0002] During the process of feeding material into the buffer silo using the fine material bucket elevator, operators need to constantly monitor the buffer silo level gauge. When the buffer silo level shows the bottom level, the feeder needs to be activated to feed material into the buffer silo. When the material level reaches the high level, the feeder and fine material bucket elevator current should be stopped. When the fine material bucket elevator current decreases, it indicates that the buffer silo is low on material, and the fine material feeder needs to be activated. When the bucket elevator current rises to a certain value, it indicates that the silo is full, and the fine material feeder needs to be stopped. This operation is frequent; during normal operation, one person needs to operate 4-6 units. The repetitive and monotonous work can easily lead to mental fatigue and operational errors. Insufficient material preparation will cause the silo seal to fail, and the acetylene gas generated by the generator will leak into the fine material bucket elevator, posing an explosion risk. Excessive material preparation will cause the fine material bucket elevator to stop, causing it to jam. It will require employees to open the bucket elevator door to clear the accumulated material before it can be restarted, making the operation extremely unstable. The previous operation was time-consuming and labor-intensive, requiring one person to constantly observe the material level in the buffer silo. If the level is not high enough, it will bring safety hazards. At the same time, after the equipment fails, employees need to clean the accumulated material in the system. Therefore, we propose a fine material feeder. Utility Model Content

[0003] The purpose of this invention is to provide a fine material feeder to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a fine material feeder, comprising a fine material bucket elevator, a fine material bin externally disposed on the fine material bucket elevator, a first fine material feeder installed at the bottom of the fine material bin, and a material passage pipe connected to the bottom of the first fine material feeder, the end of the material passage pipe being connected to the feed inlet of the fine material bucket elevator, a buffer bin externally disposed on the fine material bucket elevator, and a scraper bar for scraping material off the inner wall of the buffer bin being disposed inside the buffer bin, a conveying pipe for conveying material being disposed at the bottom of the fine material bin, and a generator connected to the end of the conveying pipe, a second fine material feeder installed at the bottom of the generator, and both the second and first fine material feeders being provided with conveying rollers for uniformly discharging material.

[0005] Preferably, a mounting frame is fixedly installed at the bottom of the buffer hopper, and a discharge cylinder is provided inside the mounting frame. The top of the discharge cylinder is rotatably connected to the bottom of the buffer hopper through a bearing. The top of the discharge cylinder extends into the buffer hopper. The bottom of the scraper is fixedly connected to the discharge cylinder. Level gauges are installed at equal intervals on the outside of the buffer hopper.

[0006] Preferably, a support frame is fixedly installed at the end of the conveying pipe. A drive motor is fixedly installed at the bottom end of the support frame on one side of the conveying pipe, and the output shaft end of the drive motor passes through the support frame and is fixedly connected to a first pulley. A second pulley and a third pulley are rotatably connected to the side of the support frame away from the conveying pipe. The second pulley is connected to the first pulley and the third pulley by belt drive. A driving bevel gear is fixedly connected to the central shaft end of the third pulley through the support frame. A driven bevel gear is fixedly connected to the outside of the feed cylinder, and the driven bevel gear is meshed with the driving bevel gear.

[0007] Preferably, a spiral conveying rod is rotatably connected inside the conveying pipe via a bearing, and the end of the central shaft of the second pulley extends into the conveying pipe and is fixedly connected to the central shaft of the spiral conveying rod.

[0008] Preferably, a vent pipe for introducing nitrogen is provided on the outside of the fine material bin, and a gas delivery pipe for introducing nitrogen is provided on the outside of the bottom end of the fine material bucket elevator. Control valves are installed on the outside of both the vent pipe and the gas delivery pipe.

[0009] Preferably, a rotating motor is fixedly installed on the outer side of both the first and second fine material feeders, and the output shaft end of the rotating motor is fixedly connected to the conveying roller. Conveying grooves are provided at equal intervals on the outer side of the conveying roller.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] 1. This utility model interlocks the frequency of the first fine material feeder and the start / stop current of the fine material bucket elevator. When the operating current of the fine material bucket elevator drops to near the no-load value, the first fine material feeder starts running, and the fine material bucket elevator begins to prepare material for the buffer hopper. When the fine material bucket elevator reaches the predetermined value, the first fine material feeder stops, thus realizing the automatic preparation of material for the buffer hopper.

[0012] 2. This utility model achieves automatic and intermittent precise material preparation by setting up a buffer hopper and a level gauge for monitoring, and combining the intelligent interlock control of the bucket elevator current and the feeder. This effectively avoids the equipment running idle or overloaded. The unique rotating scraper design can continuously remove the material adhering to the hopper wall, completely solving the problem of poor material discharge caused by fine materials easily caking and bridging.

[0013] 3. This utility model adopts a closed structure and integrates a nitrogen protection system. The introduction of inert gas can effectively isolate oxygen, fundamentally preventing the risk of dust explosion and ensuring production safety. The two-stage grooved wheel feeder, combined with the screw conveyor, realizes uniform and controllable material conveying and high-precision volume measurement, meeting the generator's requirements for uniformity and accuracy in fine material supply. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the internal connection structure between the buffer hopper and the conveying pipe of this utility model;

[0017] Figure 4 This is a schematic diagram of the material conveying pipe connection structure of this utility model.

[0018] In the diagram: 1. Fine material bucket elevator; 2. Fine material bin; 3. First fine material feeder; 4. Material passage pipe; 5. Buffer bin; 6. Conveying pipe; 7. Generator; 8. Air pipe; 9. Air conveying pipe; 10. Second fine material feeder; 11. Conveying roller; 12. Conveying trough; 13. Rotary motor; 14. Scraper bar; 15. Level gauge; 16. Mounting frame; 17. Feeding cylinder; 18. Driven bevel gear; 19. Support frame; 20. Drive motor; 21. First pulley; 22. Second pulley; 23. Third pulley; 24. Driving bevel gear. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1 and Figure 2 This utility model provides a technical solution: a fine material feeder, including a fine material bucket elevator 1, a fine material bin 2 is provided on the outside of the fine material bucket elevator 1, a first fine material feeder 3 is installed at the bottom of the fine material bin 2, and a material passage pipe 4 is connected to the bottom of the first fine material feeder 3, and the end of the material passage pipe 4 is connected to the feed inlet of the fine material bucket elevator 1.

[0021] The fine material bucket elevator 1 is externally connected to a buffer hopper 5, and the buffer hopper 5 is equipped with a scraper 14 for scraping the material from the inner wall of the buffer hopper 5. The bottom of the fine material hopper 2 is equipped with a conveying pipe 6 for conveying the material, and the end of the conveying pipe 6 is connected to a generator 7. The bottom of the generator 7 is equipped with a second fine material feeder 10. Both the second fine material feeder 10 and the first fine material feeder 3 are equipped with conveying rollers 11 for uniformly discharging the material.

[0022] It should be noted that by setting the frequency and start / stop current of the first fine material feeder 3 to be interlocked with the current of the fine material bucket elevator 1, when the operating current of the fine material bucket elevator 1 drops to close to the no-load value, the first fine material feeder 3 is started and the fine material bucket elevator 1 begins to prepare material for the buffer hopper 5. When the fine material bucket elevator 1 reaches the predetermined value, the first fine material feeder 3 is stopped, thus realizing the automatic preparation of material for the buffer hopper 5.

[0023] Please see Figure 3 A mounting frame 16 is fixedly installed at the bottom of the buffer hopper 5, and a discharge cylinder 17 is provided inside the mounting frame 16. The top of the discharge cylinder 17 is rotatably connected to the bottom of the buffer hopper 5 through a bearing. The top of the discharge cylinder 17 extends into the buffer hopper 5. The bottom of the scraper rod 14 is fixedly connected to the discharge cylinder 17. Level gauges 15 are installed at equal intervals on the outside of the buffer hopper 5.

[0024] It should be noted that the feeding cylinder 17 is connected to the inside of the buffer hopper 5, so that the fine material inside the buffer hopper 5 can be placed into the conveying pipe 6 through the feeding cylinder 17. The rotatable adjustment of the feeding cylinder 17 allows it to drive the scraper rod 14 to scrape the inner wall of the buffer hopper 5 when it rotates, which solves the problem of poor material feeding caused by the easy caking and bridging of fine materials.

[0025] Please see Figure 3 A support frame 19 is fixedly installed at the end of the conveying pipe 6. A drive motor 20 is fixedly installed at the bottom end of the support frame 19 on one side of the conveying pipe 6. The output shaft end of the drive motor 20 passes through the support frame 19 and is fixedly connected to a first pulley 21. A second pulley 22 and a third pulley 23 are rotatably connected to the side of the support frame 19 away from the conveying pipe 6. The second pulley 22 is connected to the first pulley 21 and the third pulley 23 by belt drive. The central shaft end of the third pulley 23 passes through the support frame 19 and is fixedly connected to a driving bevel gear 24. A driven bevel gear 18 is fixedly connected to the outside of the feed cylinder 17, and the driven bevel gear 18 is meshed with the driving bevel gear 24.

[0026] It should be noted that when this utility model is used, the acetylene fines are stored in the fines bin 2. After starting, the material is initially measured and discharged through the first fines feeder 3 at the bottom. As the rotating motor 13 on the first fines feeder 3 works, it drives the conveying roller 11 to rotate. The fines in the fines bin 2 are placed in the conveying trough 12 on the conveying roller 11. As the conveying roller 11 rotates, the fines stored in the conveying trough 12 fall evenly. The material enters the fines bucket elevator 1 through the feed pipe 4.

[0027] Fine materials are lifted by the fine material bucket elevator 1. During this process, nitrogen is introduced into the fine material bin 2 through the vent pipe 8 and into the fine material bucket elevator 1 through the gas delivery pipe 9 to prevent dust explosion or material oxidation. The frequency and start / stop of the first fine material feeder 3 are interlocked with the current of the fine material bucket elevator 1. When the operating current of the fine material bucket elevator 1 drops to close to the no-load value, the first fine material feeder 3 is started and the fine material bucket elevator 1 begins to prepare materials for the buffer bin 5. When the fine material bucket elevator 1 reaches the predetermined value, the first fine material feeder 3 is stopped, realizing the automatic preparation of materials for the buffer bin 5.

[0028] The first pulley 21 can be driven to rotate by the drive motor 20. The second pulley 22 is connected to the first pulley 21 and the third pulley 23 respectively, so that the spiral conveying rod and the feeding cylinder 17 inside the conveying pipe 6 can rotate. The rotation of the feeding cylinder 17 can scrape the inner wall of the fine material bin 2. The rotation of the spiral conveying rod can transport the fine material that enters the conveying pipe 6 to the generator 7.

[0029] Please see Figure 3 A screw conveyor rod is rotatably connected inside the conveying pipe 6 via a bearing, and the end of the central shaft of the second pulley 22 extends into the conveying pipe 6 and is fixedly connected to the central shaft of the screw conveyor rod.

[0030] It should be noted that when the second pulley 22 rotates, it can drive the screw conveyor to rotate, thereby conveying the material into the generator 7.

[0031] Please see Figure 1 and Figure 2 A vent pipe 8 for introducing nitrogen is provided on the outside of the fine material bin 2, and a gas delivery pipe 9 for introducing nitrogen is provided on the outside of the bottom end of the fine material bucket elevator 1. Control valves are installed on the outside of both the vent pipe 8 and the gas delivery pipe 9.

[0032] It should be noted that nitrogen is introduced into the fine material bin 2 through the vent pipe 8 and into the fine material bucket elevator 1 through the gas delivery pipe 9. Introducing inert gas can effectively isolate oxygen, prevent the risk of dust explosion, and ensure production safety.

[0033] Please see Figure 4 A rotating motor 13 is fixedly installed on the outer side of both the first fine material feeder 3 and the second fine material feeder 10, and the output shaft end of the rotating motor 13 is fixedly connected to the conveying roller 11. Conveying grooves 12 are provided at equal intervals on the outer side of the conveying roller 11.

[0034] It should be noted that the rotating motor 13 drives the conveying roller 11 to rotate. The fine material in the fine material bin 2 is placed in the conveying trough 12 on the conveying roller 11. As the conveying roller 11 rotates, the fine material stored in the conveying trough 12 falls evenly. The material enters the fine material bucket elevator 1 through the material pipe 4. By setting the frequency and start / stop of the first fine material feeder 3 to be interlocked with the current of the fine material bucket elevator 1, when the operating current of the fine material bucket elevator 1 drops to close to the no-load value, the first fine material feeder 3 is started and the fine material bucket elevator 1 begins to prepare material for the buffer bin 5. When the fine material bucket elevator 1 reaches the predetermined value, the first fine material feeder 3 is stopped, realizing the automatic preparation operation of the buffer bin 5.

[0035] Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "third," or "fourth" may explicitly or implicitly include at least one of those features.

[0036] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fine material feeder, characterized in that, The device includes a fine material bucket elevator (1), which has a fine material bin (2) on its exterior. A first fine material feeder (3) is installed at the bottom of the fine material bin (2), and a material passage pipe (4) is connected to the bottom of the first fine material feeder (3). The end of the material passage pipe (4) is connected to the feed inlet of the fine material bucket elevator (1). A buffer bin (5) is connected to the exterior of the fine material bucket elevator (1), and a scraper bar (14) for scraping the material from the inner wall of the buffer bin (5) is installed inside the buffer bin (5). A conveying pipe (6) for conveying the material is installed at the bottom of the fine material bin (2), and a generator (7) is connected to the end of the conveying pipe (6). A second fine material feeder (10) is installed at the bottom of the generator (7). Both the second fine material feeder (10) and the first fine material feeder (3) are equipped with conveying rollers (11) for uniformly discharging the material.

2. The fine material feeder according to claim 1, characterized in that: The bottom of the buffer silo (5) is fixedly installed with a mounting frame (16), and a discharge cylinder (17) is provided inside the mounting frame (16). The top of the discharge cylinder (17) is rotatably connected to the bottom of the buffer silo (5) through a bearing. The top of the discharge cylinder (17) extends into the buffer silo (5). The bottom of the scraper rod (14) is fixedly connected to the discharge cylinder (17). Level gauges (15) are installed at equal intervals on the outside of the buffer silo (5).

3. A fine material feeder according to claim 2, characterized in that: A support frame (19) is fixedly installed at the end of the conveying pipe (6). A drive motor (20) is fixedly installed at the bottom end of the support frame (19) on one side of the conveying pipe (6). The output shaft end of the drive motor (20) passes through the support frame (19) and is fixedly connected to a first pulley (21). A second pulley (22) and a third pulley (23) are rotatably connected to the side of the support frame (19) away from the conveying pipe (6). The second pulley (22) is connected to the first pulley (21) and the third pulley (23) respectively by belt drive. The central shaft end of the third pulley (23) passes through the support frame (19) and is fixedly connected to a driving bevel gear (24). A driven bevel gear (18) is fixedly connected to the outside of the feed cylinder (17), and the driven bevel gear (18) and the driving bevel gear (24) are meshed together.

4. A fine material feeder according to claim 3, characterized in that: The conveying pipe (6) is rotatably connected to a spiral conveying rod via a bearing, and the end of the central shaft of the second pulley (22) extends into the conveying pipe (6) and is fixedly connected to the central shaft of the spiral conveying rod.

5. A fine material feeder according to claim 1, characterized in that: The outer side of the fine material bin (2) is provided with a vent pipe (8) for introducing nitrogen gas, and the outer side of the bottom end of the fine material bucket elevator (1) is provided with a gas delivery pipe (9) for introducing nitrogen gas. Both the vent pipe (8) and the gas delivery pipe (9) are equipped with control valves.

6. A fine material feeder according to claim 1, characterized in that: A rotating motor (13) is fixedly installed on the outer side of the first fine material feeder (3) and the second fine material feeder (10), and the output shaft end of the rotating motor (13) is fixedly connected to the conveying roller (11). The conveying roller (11) is provided with conveying grooves (12) at equal intervals on the outer side.

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