Feeding device for a rotary balance in use

Abstract

The utility model relates to cement production technical field, and disclose a kind of feeding device when using rotor scale, including bottom plate, the top of bottom plate is fixedly connected with feed tank, the top of feed tank is fixedly connected with mineral powder bin, one side of mineral powder bin is provided with rotor scale, the inside of rotor scale is equipped with feeding tray and weighing sensor, one side of rotor scale is equipped with elevator, the outside of mineral powder bin is equipped with feeding mechanism, the inner chamber of feed tank is equipped with double helix reamer, double helix reamer is driven by driving mechanism limit, the utility model, by the feed tank of integrated design cooperation internal double helix reamer, to realize the stable crushing conveying purpose to cement raw material, while avoiding the problem of leakage, and feeding tray and weighing sensor in rotor scale can be adjusted control to material conveying speed, to improve the stability of cement raw material feeding, discharging process, reduce the fluctuation of mineral powder incorporation amount, ensure the strength of subsequent production cement.

Description

Technical Field

[0001] This utility model relates to the field of cement production technology, specifically to a feeding device for use with a rotor scale. Background Technology

[0002] Cement is a powdered, hydraulic, inorganic binder. When mixed with water, it forms a paste that hardens in air or water, and effectively binds materials such as sand and stone together. Early mixtures of lime and volcanic ash were very similar to modern lime-volcanic ash cement. Concrete made from this cement, binding crushed stone, not only had high strength after hardening but also resisted erosion from fresh or salt water.

[0003] However, existing feeding devices use a double-reamer in conjunction with a rotor scale, which leads to instability of the material entering the rotor scale, resulting in unstable metering. At the same time, the reamer has poor sealing, causing serious material leakage on site, which leads to unstable feeding and large fluctuations in the amount of mineral powder added, affecting the 28-day strength of cement, and causing the 425 cement to fluctuate by about 2 MPa. This utility model designs a feeding device for rotor scale use to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide a feeding device for use in a rotor scale, which solves the problem in the background art where unstable cement raw material feeding leads to large fluctuations in the amount of mineral powder added, affecting the strength of cement.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A feeding device for use with a rotor scale includes:

[0007] A base plate is provided, with a conveying box fixedly connected to the top of the base plate. A mineral powder silo is fixedly connected to the top of the conveying box. A rotor scale is provided on one side of the mineral powder silo. The rotor scale has a feeding tray and a weighing sensor inside. An elevator is provided on one side of the rotor scale. A feeding mechanism is provided outside the mineral powder silo. A double helical cutter is provided in the inner cavity of the conveying box. The double helical cutter is driven by a limiting mechanism. A discharge port is opened on one side of the conveying box. A guide hopper is fixedly connected to one side of the discharge port. A feed inlet is provided at the top of the rotor scale. A discharge port is provided at the bottom of the rotor scale. An inclined chute is fixedly connected to the bottom of the discharge port.

[0008] Preferably, the driving mechanism includes two rotating shafts that rotatably connect a double helical reamer to the inner cavity of the feed box. Two gears are symmetrically connected to one side of the feed box and rotatably connected thereto. A servo motor is fixedly connected to one side of the feed box, and the output shaft of the servo motor is fixedly connected to one of the rotating shafts.

[0009] Preferably, the inner cavity of the mineral powder silo is connected to the inner cavity of the conveying box, the outlet is connected to the inner cavity of the guide hopper, the guide hopper is connected to the inlet, and the discharge port is connected to the inlet of the elevator.

[0010] Preferably, the feeding mechanism includes a feed hopper fixedly connected to the top of the mineral powder silo, a stirring shaft is rotatably connected through the inner cavity of the mineral powder silo, an auger blade is fixedly connected to the outer ring of the stirring shaft, and the stirring shaft is driven by a linkage assembly.

[0011] Preferably, a limiting plate is fixedly connected to the bottom of the mineral powder silo, and guide slopes are provided on the top edges of both sides of the limiting plate. The surface of the guide slopes is smoothed, and the stirring shaft passes through the limiting plate and is limited by bearings at the intersection and is rotatably connected.

[0012] Preferably, the linkage component includes a linkage shaft rotatably connected to one side of the mineral powder silo. The linkage shaft is rotatably connected to one side of the mineral powder silo via a limiting frame. A crown gear is fixedly connected to the bottom of the linkage shaft, and the crown gear meshes with one of the gears. A sprocket is fixedly connected to the top outer ring of both the stirring shaft and the linkage shaft, and the sprocket is connected by a chain.

[0013] Compared with the prior art, the beneficial effects achieved by this utility model are:

[0014] 1. This utility model achieves stable crushing and conveying of cement raw materials by using an integrated conveying box with internal double spiral cutters, while avoiding material leakage. The material conveying speed can be adjusted and controlled by the feeding plate and weighing sensor in the rotor scale, thereby improving the stability of the cement raw material feeding and unloading process, reducing the fluctuation of mineral powder admixture, and ensuring the strength of the cement produced later.

[0015] 2. This utility model uses the auger blades in the feeding mechanism to stir and transport the cement raw materials in the mineral powder silo, ensuring the uniformity of the mineral powder raw materials while stably conveying the cement raw materials in the mineral powder silo downwards into the conveying box. This avoids the cement raw materials in the mineral powder silo being compacted, which would affect the material discharge into the conveying box, and further improves the stability of the feeding device during the use of this rotor scale. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the new overall structure;

[0017] Figure 2 This is the main view of the new overall structure;

[0018] Figure 3 Schematic diagram of a novel structural feed box and double-helix reamer;

[0019] Figure 4 This is a cross-sectional view of the new type of feeding mechanism.

[0020] The components include: 1. Base plate; 2. Feeding box; 3. Mineral powder silo; 4. Rotary scale; 5. Elevator; 6. Feeding mechanism; 601. Feed hopper; 602. Mixing shaft; 603. Screwdriver blades; 604. Limiting plate; 605. Guide slope; 606. Linkage shaft; 607. Limiting frame; 608. Crown gear; 609. Sprocket; 6010. Chain; 7. Double helical reamer; 8. Rotating shaft; 9. Gear; 10. Servo motor; 11. Discharge port; 12. Guide hopper; 13. Feed inlet; 14. Discharge port; 15. Inclined chute. Detailed Implementation

[0021] 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.

[0022] Please see Figures 1-3 A feeding device for use with a rotor scale, comprising:

[0023] A base plate 1 is provided. A conveying box 2 is fixedly connected to the top of the base plate 1. A mineral powder silo 3 is fixedly connected to the top of the conveying box 2. A rotor scale 4 is provided on one side of the mineral powder silo 3. The rotor scale 4 is equipped with a feeding tray and a weighing sensor inside. An elevator 5 is provided on one side of the rotor scale 4. A feeding mechanism 6 is provided on the outside of the mineral powder silo 3. A double spiral reamer 7 is provided in the inner cavity of the conveying box 2. The double spiral reamer 7 is driven by a limiting mechanism. A discharge port 11 is opened on one side of the conveying box 2. A guide hopper 12 is fixedly connected to one side of the discharge port 11. A feed inlet 13 is provided on the top of the rotor scale 4. A discharge port 14 is provided on the bottom of the rotor scale 4. An inclined chute 15 is fixedly connected to the bottom of the discharge port 14.

[0024] The drive mechanism includes two rotating shafts 8 that rotatably connect the double helical reamer 7 to the inner cavity of the feed box 2. Two gears 9 are symmetrically connected to one side of the feed box 2 and rotatably connected thereto. A servo motor 10 is fixedly connected to one side of the feed box 2, and the output shaft of the servo motor 10 is fixedly connected to one of the rotating shafts 8.

[0025] The inner cavity of the mineral powder silo 3 is connected to the inner cavity of the conveying box 2, the outlet 11 is connected to the inner cavity of the guide hopper 12, the guide hopper 12 is connected to the inlet 13, and the discharge port 14 is connected to the inlet of the elevator 5.

[0026] In this embodiment of the utility model, the integrated feeding box 2, combined with the internal double spiral cutter 7, achieves the purpose of stable crushing and conveying of cement raw materials while avoiding material leakage. The feeding plate and weighing sensor in the rotor scale 4 are used to adjust and control the material conveying speed, thereby improving the stability of the cement raw material feeding and unloading process, reducing the fluctuation of mineral powder admixture, and ensuring the strength of the cement produced later.

[0027] Please refer to Figure 4 The feeding mechanism 6 includes a feed hopper 601 fixedly connected to the top of the mineral powder silo 3. The inner cavity of the mineral powder silo 3 is rotatably connected to a stirring shaft 602. The outer ring of the stirring shaft 602 is fixedly connected to an auger blade 603. The stirring shaft 602 is driven by a linkage component.

[0028] The bottom of the mineral powder silo 3 is fixedly connected to a limiting plate 604. The top edges of both sides of the limiting plate 604 are provided with guide slopes 605. The surface of the guide slopes 605 is smoothed. The stirring shaft 602 passes through the limiting plate 604 and is limited by bearings at the intersection and is rotatably connected.

[0029] The linkage assembly includes a linkage shaft 606 rotatably connected to one side of the mineral powder silo 3. The linkage shaft 606 is rotatably connected to one side of the mineral powder silo 3 via a limit frame 607. A crown gear 608 is fixedly connected to the bottom of the linkage shaft 606. The crown gear 608 meshes with one of the gears 9. A sprocket 609 is fixedly connected to the top outer ring of both the stirring shaft 602 and the linkage shaft 606. The sprocket 609 is connected via a chain 6010.

[0030] In this embodiment of the utility model, during the process of conveying materials by the rotating shaft 8 driven by the servo motor 10, the linkage shaft 606 will rotate in conjunction with the crown gear 608 and the limit frame 607. Then, under the action of the sprocket 609, chain 6010, limit plate 604 and guide slope 605, the auger blades 603 outside the stirring shaft 602 in the mineral powder bin 3 will rotate, thereby stably conveying the cement raw materials in the mineral powder bin 3 downward into the conveying box 2, avoiding the compaction of the cement raw materials in the mineral powder bin 3 and affecting the material discharge into the conveying box 2, and further improving the stability of the feeding device during the use of this rotor scale.

[0031] When using the feeding device of this rotor scale, the raw materials required for cement production are added into the mineral powder silo 3. The servo motor 10 drives the rotating shaft 8 to rotate, which, in conjunction with the gear 9, drives the double spiral cutter 7 in the conveyor box 2 to crush and convey the cement raw materials to the discharge port 11. Then, the cement raw materials are discharged into the rotor scale 4 from the feed port 13 through the guide hopper 12. Finally, the cement raw materials are discharged from the discharge port 14 into the inclined chute 15, and then enter the elevator 5 to be lifted and conveyed to the required position. During the process of the cement raw materials entering the rotor scale 4, the servo motor 10 is used to adjust the material flow according to the feedback from the rotor scale. The rotation speed of the double helical cutter 7 is adjusted to regulate the conveying speed of cement raw materials. Simultaneously, through the cooperation of the feeding pan and the weighing sensor, PID regulation is achieved based on the load of the rotor scale 4. One signal from the weighing sensor is sent to the frequency converter of the feeding pan, and another is used for weighing itself. Ultimately, the load of the rotor scale 4 is achieved at 80%-85%, which stabilizes the mineral powder content and ensures that the 28-day strength of 425 cement is stable at 55 MPa ± 1 MPa. This improves the stability of the cement raw material feeding and unloading process, reduces the fluctuation of mineral powder content, and ensures the strength of the cement produced subsequently.

[0032] 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, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A feeding device for use with a rotor scale, characterized in that, include: A base plate (1) is fixedly connected to a conveying box (2) at the top of the base plate (1). A mineral powder silo (3) is fixedly connected to the top of the conveying box (2). A rotor scale (4) is provided on one side of the mineral powder silo (3). A feeding plate and a weighing sensor are provided inside the rotor scale (4). An elevator (5) is provided on one side of the rotor scale (4). A feeding mechanism (6) is provided outside the mineral powder silo (3). A double spiral reamer (7) is provided in the inner cavity of the conveying box (2). The double spiral reamer (7) is driven by a driving mechanism. A discharge port (11) is opened on one side of the conveying box (2). A guide hopper (12) is fixedly connected to one side of the discharge port (11). A feed inlet (13) is provided at the top of the rotor scale (4). A discharge port (14) is provided at the bottom of the rotor scale (4). An inclined groove (15) is fixedly connected to the bottom of the discharge port (14).

2. The feeding device for use with a rotor scale according to claim 1, characterized in that: The drive mechanism includes two rotating shafts (8) that rotatably connect the double helical reamer (7) in the inner cavity of the feed box (2). Two gears (9) are symmetrically connected to one side of the feed box (2). A servo motor (10) is fixedly connected to one side of the feed box (2). The output shaft of the servo motor (10) is fixedly connected to one of the rotating shafts (8).

3. The feeding device for use with a rotor scale according to claim 1, characterized in that: The mineral powder silo (3) is connected to the inner cavity of the conveying box (2), the discharge port (11) is connected to the inner cavity of the guide hopper (12), the guide hopper (12) is connected to the feed inlet (13), and the discharge port (14) is connected to the inlet of the elevator (5).

4. The feeding device for use of a rotor scale according to claim 1, characterized in that: The feeding mechanism (6) includes a feeding hopper (601) fixedly connected to the top of the mineral powder silo (3). The inner cavity of the mineral powder silo (3) is rotatably connected to a stirring shaft (602). The outer ring of the stirring shaft (602) is fixedly connected to an auger blade (603). The stirring shaft (602) is driven by a linkage component.

5. The feeding device for use of a rotor scale according to claim 4, characterized in that: The bottom of the mineral powder silo (3) is fixedly connected to a limiting plate (604). The top edges of both sides of the limiting plate (604) are provided with guide slopes (605). The surface of the guide slopes (605) is smoothed. The stirring shaft (602) passes through the limiting plate (604) and the intersection is limited by a bearing and rotated.

6. The feeding device for use of a rotor scale according to claim 4, characterized in that: The linkage assembly includes a linkage shaft (606) rotatably connected to one side of the mineral powder silo (3). The linkage shaft (606) is rotatably connected to one side of the mineral powder silo (3) via a limiting frame (607). A crown gear (608) is fixedly connected to the bottom of the linkage shaft (606). The crown gear (608) meshes with one of the gears (9). A sprocket (609) is fixedly connected to the top outer ring of both the stirring shaft (602) and the linkage shaft (606). The sprocket (609) is connected via a chain (6010).

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