A centrifuge discharge arch breaking device

Abstract

The utility model discloses a centrifuge discharge arch breaking device belongs to centrifuge discharge technical field, specifically includes the warehouse frame, the feeding bin is fixedly connected on the warehouse frame, the top of feeding bin is provided with the feed inlet, the bottom of feeding bin is provided with the first discharge port, the lower blanking bin is fixedly connected below the first discharge port of feeding bin, the bottom of lower blanking bin is provided with the second discharge port, the stirring mechanism sets up in the inside of feeding bin, the conveying mechanism is fixedly connected on the lower blanking bin and is located below the stirring device, the vibration mechanism sets up on the outer wall of feeding bin, the utility model discloses through " internal mechanical stirring " and " external high -frequency vibration " combined compound arch breaking mode, acts on the center area of feeding bin and the inner wall area of feeding bin simultaneously, completely destroys the mechanical equilibrium of material arch formation, solves the problem of the dead angle of single means, and arch breaking efficiency improves significantly.

Description

Technical Field

[0001] This utility model belongs to the field of centrifuge discharge technology, specifically relating to a centrifuge discharge arch-breaking device. Background Technology

[0002] Centrifuges are common solid-liquid separation equipment in industries such as chemical, pharmaceutical, and food processing. The separated wet material is typically unloaded into a feeding hopper and transported to the next process via a conveyor below. However, many materials (especially powdery, fibrous, or viscous materials) are prone to forming an "arched" blockage structure at the bottom of the feeding hopper, particularly near the discharge port. This phenomenon is known as "bridging" or "material bridging."

[0003] In the prior art, to solve this problem, a vibrator installed on the outer side of the inner wall of a single feeding hopper or a stirring mechanism installed inside the hopper is generally used. However, a single vibrator has limited effect on breaking up the material arch in the central area and is prone to causing the material to compact, which in turn aggravates the blockage. On the other hand, a single stirring mechanism is prone to forming "dead corners" near the inner wall of the feeding hopper, where the adhered material cannot be effectively removed.

[0004] Therefore, there is a need to provide a centrifuge discharge arch-breaking device to solve the above-mentioned technical problems. Utility Model Content

[0005] To address the problems mentioned in the background section, this invention provides a centrifuge discharge arch-breaking device that completely disrupts the mechanical balance of material arches, solves the dead zone problem inherent in single-method approaches, and significantly improves arch-breaking efficiency.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a centrifuge discharge arch-breaking device, including a silo frame; A feeding hopper is fixedly connected to a hopper frame. The top of the feeding hopper is provided with a feeding inlet, and the bottom of the feeding hopper is provided with a first discharging outlet. The feeding hopper is fixedly connected below the first discharge port of the feeding hopper, and a second discharge port is provided at the bottom of the feeding hopper; A mixing mechanism, which is installed inside the feeding hopper, is used to break up arched blockages in the material. A conveying mechanism, which is fixedly connected to the feeding hopper and located below the mixing device, is used to receive and convey materials; A vibration mechanism is installed on the outer walls of the upper and lower hoppers to assist in breaking arches through vibration. The control system is electrically connected to the stirring mechanism, the conveying mechanism and the vibration mechanism, and is used to coordinate the operation of each mechanism.

[0007] Preferably, the stirring mechanism includes a stirring shaft and a first reduction motor. The stirring shaft is rotatably connected inside the feeding hopper. Multiple stirring blades are arrayed on the stirring shaft along its axial direction. One end of the stirring shaft is connected to the first reduction motor fixedly connected to the hopper frame via a first coupling.

[0008] Preferably, the conveying mechanism includes a conveying cylinder, which is fixedly connected below the second discharge port on the feeding hopper. A feeding trough communicating with the discharge port is provided on the side wall of the conveying cylinder. A discharge hopper is fixedly connected to the lower edge of the upper end of the conveying cylinder. A conveying shaft is rotatably connected inside the conveying cylinder. A spiral conveying blade is fixedly connected to the outer side of the conveying shaft. One end of the conveying shaft is connected to a second reduction motor fixedly connected to the hopper frame through a second coupling.

[0009] Preferably, multiple vibration mechanisms are provided, and the multiple vibration mechanisms are symmetrically arranged on the outer walls of the upper and lower hoppers, and the vibration mechanism is a pneumatic vibrator.

[0010] Preferably, the feeding hopper is equipped with a feeding level gauge for detecting the material height in the feeding hopper, and the unloading hopper is equipped with a unloading level gauge for detecting the material height in the unloading hopper.

[0011] Preferably, the control system includes a PLC controller, and the input terminal of the PLC controller is electrically connected to the output terminal of the upper material level gauge and the output terminal of the lower material level gauge; The PLC controller is configured as follows: When the discharge level gauge detects that the material level has reached a high threshold, the stirring mechanism and the vibration mechanism of the discharge hopper are activated; when the discharge level gauge detects that the material level has dropped to a low threshold, the stirring mechanism and the vibration mechanism of the discharge hopper are stopped. When the material level gauge detects that the material level has reached a high threshold, the vibration mechanism of the feeding hopper is activated; When the feed level gauge detects that the feed level has dropped to a low threshold, the vibration mechanism of the feed hopper is stopped.

[0012] Preferably, the bottom of the feeding hopper has a conical structure, and the inner wall of the feeding hopper is polished or coated with a non-stick coating.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model uses a composite arch-breaking method that combines "internal mechanical stirring" and "external high-frequency vibration" to simultaneously act on the central area of ​​the feeding hopper and the inner wall area of ​​the feeding hopper, completely destroying the mechanical balance formed by the material arch, solving the dead zone problem of single methods, and significantly improving the arch-breaking efficiency.

[0014] 2. This utility model achieves automatic start and stop of the arch-breaking function by combining the level gauge and the PLC controller. The control system only works when the high level is needed, avoiding energy waste and equipment idling, reducing the intensity of manual intervention, and extending the service life of the equipment.

[0015] 3. The polishing or non-stick coating treatment of the conical bottom and inner wall of this utility model physically reduces the adhesion of materials, forming a double protection with the vibration mechanism to ensure smooth material flow. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a schematic diagram of the left-side structure of this utility model; In the diagram: 1. Bin frame; 2. Feeding bin; 3. Discharging bin; 4. Agitator shaft; 5. Agitator blades; 6. First geared motor; 7. Conveying cylinder; 8. Discharge hopper; 9. Second geared motor; 10. Pneumatic vibrator; 11. Feeding level gauge; 12. Discharging level gauge. Detailed Implementation

[0017] 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.

[0018] Example Please see Figure 1-2 This embodiment provides the following technical solution: a centrifuge discharge arch-breaking device, including a bin frame 1; Feeding bin 2 is fixedly connected to the bin frame 1. The top of feeding bin 2 is provided with a feed inlet, and the bottom of feeding bin 2 is provided with a first discharge outlet. The feed inlet of feeding bin 2 is connected to the discharge outlet of the centrifuge. Feeding bin 3 is fixedly connected below the first discharge outlet of feeding bin 2. The bottom of feeding bin 3 is provided with a second discharge outlet. The bottoms of both feeding bin 2 and feeding bin 3 are conical structures, which facilitates the material to gather towards the center.

[0019] In some embodiments, the feed inlet of the feeding bin 2 is larger than the feed inlet of the discharging bin 3.

[0020] The inner walls of the feeding hopper 2 and the unloading hopper 3 are polished or coated with a non-stick coating; this physically reduces the adhesion of materials and forms a double guarantee with the vibration mechanism to ensure smooth material flow.

[0021] The mixing mechanism is located inside the feeding hopper 3 and is used to break up material arch blockages. The mixing mechanism includes a mixing shaft 4 and a first reduction motor 6. The mixing shaft 4 is rotatably connected to the inside of the feeding hopper 3 through a bearing seat. Multiple mixing blades 5 are arrayed along the axial direction on the mixing shaft 4. One end of the mixing shaft 4 is connected to the first reduction motor 6 fixedly connected to the hopper frame 1 through a first coupling. The first reduction motor 6 drives the mixing shaft 4 to rotate, thereby forcibly mixing the material in the feeding hopper 3 and cutting off the material arch in the central area.

[0022] The conveying mechanism is fixedly connected to the feeding hopper 3 and located below the mixing device. It is used to receive and convey materials. The conveying mechanism includes a conveying cylinder 7, which is fixedly connected to the feeding hopper 3 below the second discharge port. The side wall of the conveying cylinder 7 is provided with a feeding trough communicating with the discharge port. The lower edge of the upper end of the conveying cylinder 7 is fixedly connected to a discharge hopper 8. A conveying shaft is rotatably connected inside the conveying cylinder 7. A spiral conveying blade is fixedly connected to the outside of the conveying shaft. One end of the conveying shaft is connected to the second reduction motor 9 fixedly connected to the hopper frame 1 through a second coupling. Through the second reduction motor 9, the conveying shaft drives the spiral conveying blade to push the material into the discharge hopper 8, which facilitates the conveying of the material after arch breaking to the next process.

[0023] In some embodiments, the first geared motor 6 and the stirring shaft 4, as well as the second geared motor 9 and the output shaft, can be connected by chain drive or gear drive.

[0024] A vibration mechanism is installed on the outer wall of the feeding hopper 2 to assist in breaking up arches through vibration. Multiple vibration mechanisms are provided, symmetrically arranged on the outer walls of the feeding hopper 2 and the unloading hopper 3. The vibration mechanism is a pneumatic vibrator 10. In some embodiments, the vibration mechanism is fixedly connected to the feeding hopper 2 and the unloading hopper 3 by welding or bolting. The excitation force generated by the multiple vibration mechanisms is transmitted to the inner walls of the feeding hopper 2 and the unloading hopper 3, effectively shaking off the adhering material and assisting in loosening the material arches near the inner walls of the feeding hopper 2 and the unloading hopper 3.

[0025] The feeding hopper 2 is equipped with a feeding level gauge 11 for detecting the material height in the feeding hopper 2, and the unloading hopper 3 is equipped with a unloading level gauge 12 for detecting the material height in the unloading hopper 3. In some embodiments, both the feeding level gauge 11 and the unloading level gauge 12 are rotary paddle level gauges used to detect whether the material in the feeding hopper 2 and the unloading hopper 3 has reached the preset high and low thresholds.

[0026] The control system is electrically connected to the stirring mechanism, conveying mechanism and vibration mechanism to coordinate the operation of each mechanism. The control system includes a PLC controller, which is installed in a separate electrical control box (not shown in the figure). The input terminal of the PLC controller is electrically connected to the output terminal of the upper material level gauge 11 and the output terminal of the lower material level gauge 12. The output terminal of the PLC controller is connected to the control circuit of the first geared motor 6, the second geared motor 9 and the pneumatic vibrator 10, respectively.

[0027] The PLC controller is configured as follows: When the current level gauge 12 detects that the material level has reached the high threshold, the stirring mechanism and the vibration mechanism of the feeding hopper 3 are started; when the current level gauge 12 detects that the material level has dropped to the low threshold, the stirring mechanism and the vibration mechanism of the feeding hopper 3 are stopped. When the material level gauge 11 detects that the material level has reached the high threshold, the vibration mechanism of the feeding hopper 2 is activated; When the material level gauge 11 detects that the material level has dropped to a low threshold, the vibration mechanism of the feeding hopper 2 is stopped; By combining the level gauge with the PLC controller, the automatic start and stop of the arch-breaking function is realized. The control system only works when high material levels are needed, avoiding energy waste and equipment idling, reducing the intensity of manual intervention, and extending the service life of the equipment.

[0028] The working principle of this utility model is as follows: the material separated by the centrifuge falls into the feeding hopper 2 through the feed inlet, and the material in the feeding hopper 2 enters the unloading hopper 3 through the first discharge outlet; When the material accumulates in the feeding hopper 2, the feeding level gauge 11 detects that the material level has reached the high threshold and sends a signal to the PLC controller. The PLC controller then starts the pneumatic vibrator 10 on the outer wall of the feeding hopper 2 to shake off the material stuck to the inner wall of the feeding hopper 2, ensuring that it falls smoothly into the unloading hopper 3 through the first discharge port. When the material level gauge 11 detects that the material level in the feeding hopper 2 has dropped to a low threshold, the pneumatic vibrator 10 on the outer wall of the feeding hopper 2 is stopped. After the material enters the feeding hopper 3, when the material level gauge 12 detects that the material level has reached the high threshold, the control system starts the first reduction motor 6 to work, so that the stirring blades 5 start to rotate and break the arched structure formed inside the material. At the same time, the pneumatic vibrator 10 on the outer wall of the feeding hopper 3 works to shake off the sticky material on the inner wall of the feeding hopper 3, ensuring that the material in the feeding hopper 3 smoothly enters the conveying cylinder 7. When the material level gauge 12 detects that the material level has dropped to a low threshold, the PLC controller stops the stirring mechanism and the lower vibration mechanism to prevent the equipment from running dry.

[0029] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A centrifuge discharge arch-breaking device, characterized in that: Including shelving (1); The feeding bin (2) is fixedly connected to the bin frame (1). The top of the feeding bin (2) is provided with a feeding port, and the bottom of the feeding bin (2) is provided with a first discharge port. The feeding bin (3) is fixedly connected below the first discharge port of the feeding bin (2), and the bottom of the feeding bin (3) is provided with a second discharge port; A mixing mechanism is installed inside the feeding hopper (3) to break up arched blockages in materials; The conveying mechanism is fixedly connected to the feeding hopper (3) and located below the mixing device, and is used to receive and convey materials; A vibration mechanism is installed on the outer wall of the upper hopper (2) and the lower hopper (3) for assisting in breaking the arch through vibration; The control system is electrically connected to the stirring mechanism, the conveying mechanism and the vibration mechanism, and is used to coordinate the operation of each mechanism.

2. The centrifuge discharge arch-breaking device according to claim 1, characterized in that: The stirring mechanism includes a stirring shaft (4) and a first reduction motor (6). The stirring shaft (4) is rotatably connected inside the feeding bin (3). Multiple stirring blades (5) are arrayed along the axial direction on the stirring shaft (4). One end of the stirring shaft (4) is connected to the first reduction motor (6) fixedly connected to the bin frame (1) through a first coupling.

3. The centrifuge discharge arch-breaking device according to claim 1, characterized in that: The conveying mechanism includes a conveying cylinder (7), which is fixedly connected to the lower part of the second discharge port on the feeding bin (3). The side wall of the conveying cylinder (7) is provided with a feeding trough communicating with the discharge port. The lower edge of the upper end of the conveying cylinder (7) is fixedly connected to a discharge hopper (8). A conveying shaft is rotatably connected inside the conveying cylinder (7). A spiral conveying blade is fixedly connected to the outside of the conveying shaft. One end of the conveying shaft is connected to the second reduction motor (9) fixedly connected to the bin frame (1) through a second coupling.

4. The centrifuge discharge arch-breaking device according to claim 1, characterized in that: Multiple vibration mechanisms are provided, and the multiple vibration mechanisms are symmetrically arranged on the outer walls of the upper hopper (2) and the lower hopper (3). The vibration mechanism is a pneumatic vibrator (10).

5. A centrifuge discharge arch-breaking device according to claim 1, characterized in that: The feeding hopper (2) is equipped with a feeding level gauge (11) for detecting the height of the material in the feeding hopper (2), and the unloading hopper (3) is equipped with a unloading level gauge (12) for detecting the height of the material in the unloading hopper (3).

6. A centrifuge discharge arch-breaking device according to claim 5, characterized in that: The control system includes a PLC controller, and the input terminal of the PLC controller is electrically connected to the output terminal of the upper material level gauge (11) and the output terminal of the lower material level gauge (12). The PLC controller is configured as follows: When the material level gauge (12) detects that the material level has reached the high threshold, the stirring mechanism and the vibration mechanism of the feeding hopper (3) are started; when the material level gauge (12) detects that the material level has dropped to the low threshold, the stirring mechanism and the vibration mechanism of the feeding hopper (3) are stopped. When the material level gauge (11) detects that the material level has reached a high threshold, the vibration mechanism of the feeding hopper (2) is activated; When the feed level gauge (11) detects that the feed level has dropped to a low threshold, the vibration mechanism of the feed hopper (2) is stopped.

7. The centrifuge discharge arch-breaking device according to claim 1, characterized in that: The bottom of both the feeding hopper (2) and the unloading hopper (3) is a conical structure, and the inner walls of the feeding hopper (2) and the unloading hopper (3) are polished or coated with a non-stick coating.

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