Central feeding machine with unblocking function

Abstract

The center feeder comprises a storage bin, an unloading mechanism, a transmission mechanism, a discharge port and an unblocking mechanism which are arranged from top to bottom, an inner cone is arranged in the storage bin, the unloading mechanism is connected with a driving mechanism through the transmission mechanism, the input end of the discharge port is communicated with the storage bin, and the output end of the discharge port is connected with the unblocking mechanism; the unblocking mechanism comprises a fixed cone, a rotary cone, a fixed cylinder and a gate valve which are sequentially arranged from top to bottom and communicated, a power mechanism is connected outside the rotary cone, an upper moving cutter is arranged along the inner wall of the fixed cone, one end of the upper moving cutter is fixed to the outer side, close to the top, of the rotary cone, and a middle fixed cutter is arranged along the inner wall of the rotary cone. One end of the middle fixed cutter is fixed outside the fixed cone close to the bottom, and the other end of the middle fixed cutter is fixed outside the fixed cylinder close to the top. The conveying pipe is changed into the blockage clearing mechanism, the blockage and adhesion problems of the center feeder in the discharging process can be effectively solved, and a foundation is laid for ensuring normal operation of production.

Description

Technical Field

[0001] The present invention relates to the technical field of center feeder clogging removal, and particularly relates to a center feeder with a clogging removal function. Background Art

[0002] At present, domestic bulk material handling equipment has been relatively mature, but the form of the silo and its discharging equipment are still relatively single. The structural form of the silo is mostly a cylinder or cuboid structure with a straight section at the upper end and a towering inverted cone structure at the lower end, and the overall height is relatively high. The discharging method of the storage silo is mostly gravity discharging. Due to the towering inverted cone at the lower end of the storage silo, after a period of use, clogging phenomena of varying degrees occur. If the bulk materials have poor fluidity, such as lignite, slime, clay, sludge, etc., the clogging phenomenon in the silo is very common and serious. The working principles of the current equipment for solving this clogging problem are all to take further measures after the clogging phenomenon occurs in the silo. For example, by installing a hydraulic dredging device inside the inverted cone, starting the hydraulic dredging device to dredge the materials in the cone after the clogging phenomenon occurs to improve the fluidity of the materials in the cone; or by installing devices such as vibrators and air cannons on the outer surface of the inverted cone, starting the vibrator and air cannon devices after the clogging phenomenon occurs, and improving the fluidity of the materials in the cone by vibrating or suddenly blasting the materials in the cone. The above methods all belong to remedial measures, and there are problems such as poor adaptability and insignificant effects for different materials, and they cannot fundamentally solve the problems of high silo height, low space utilization rate, large investment, and easy material clogging. Even in many fields, very primitive methods such as knocking, vibrating, and poking are still used for treatment, and the on-site operation is difficult and dangerous. The patent with the patent number CN201020187687.1 discloses a variable-speed center feeder for a silo. The motor drives the center discharging device to rotate, and the scraper in the center discharging device rotates to hang the materials into the lower cone, solving the problem that the materials are easy to block inside the center feeder. However, between the discharging port of the center feeder and the material using place, a conveying pipe is often added to facilitate the conveying of materials. Due to the wet stickiness of the conveyed materials, the inner wall of the conveying pipe is easy to block and adhere during the feeding process, making the materials unable to enter the next production process well. Summary of the Invention

[0003] To solve the above defects, the purpose of the present invention is to provide a center feeder with a clogging removal function, which changes the conveying pipe into a clogging removal mechanism, and can effectively solve the problem of blockage and adhesion during the discharging process of the center feeder, laying a foundation for ensuring the normal operation of production.

[0004] To achieve the above object, the technical solution adopted by the present invention is: a central feeder with a clogging clearing function, which includes a storage bin, a discharging mechanism, a transmission mechanism, a discharge port, and a clogging clearing mechanism arranged from top to bottom. An inner cone is provided inside the storage bin. The discharging mechanism is connected to a driving mechanism through the transmission mechanism. The input end of the discharge port is communicated with the storage bin, and the output end is connected with the clogging clearing mechanism; the clogging clearing mechanism includes a fixed cone, a rotating cone, a fixed cylinder, and a plug valve arranged in sequence and communicated from top to bottom. A power mechanism is connected to the outside of the rotating cone. An upper moving knife is arranged along the inner wall of the fixed cone, and one end of the upper moving knife is fixed on the outer side of the rotating cone near the top. A middle fixed knife is arranged along the inner wall of the rotating cone, and one end of the middle fixed knife is fixed on the outer side of the fixed cone near the bottom, and the other end is fixed on the outer side of the fixed cylinder near the top. A lower moving knife is arranged along the inner wall of the fixed cylinder, and one end of the lower moving knife is fixed on the outer side of the rotating cone near the bottom. The plug valve includes a valve plate and a guide rail groove for limiting the movement of the valve plate, and the other end of the lower moving knife extends below the valve plate.

[0005] Further, the clogging clearing mechanism further includes a control system. The control system controls the rotation of the rotating cone. At this time, the upper moving knife and the lower moving knife rotate accordingly to clear the clog. At this time, the plug valve is in an open state. When the clogging clearing is completed, the upper moving knife and the lower moving knife stop at the edge close to the middle fixed knife. A notch is provided on the valve plate corresponding to the stop position of the lower moving knife. At this time, the plug valve executes a closing instruction.

[0006] Sealing structures are provided at the connections between the rotating cone and the fixed cone and the fixed cylinder respectively.

[0007] A travel switch is provided at the stop position of the lower moving knife. When the lower moving knife cannot stop at the specified position according to the control of the control system, the travel switch senses the lower moving knife, transmits a signal to the control system, and the control system sends a stop instruction for the lower moving knife at the specified position and simultaneously controls the plug valve to close.

[0008] Support arms and a maintenance passage are further provided inside the storage bin. The storage bin and the inner cone are connected through the support arms, and a maintenance passage is provided between the storage bin and the inner cone.

[0009] Multiple column supports are provided outside the clogging clearing mechanism.

[0010] When the present invention is in use, after the central feeder discharges materials from the discharge port, it enters the blockage clearing mechanism. The rotation of the rotating cone is controlled by the control system, thereby driving the upper moving knife and the lower moving knife to clear the blockage of the fixed cone and the fixed cylinder respectively. The middle fixed knife remains stationary, and the inner wall of the rotating cone is cleared of blockage by the rotation of the rotating cone. After the blockage clearing is completed, the upper moving knife and the lower moving knife stop at the edge close to the middle fixed knife. A notch is provided on the valve plate corresponding to the stopping position of the lower moving knife. At this time, the plug valve executes the closing instruction; when the lower moving knife cannot stop at the specified position according to the control of the control system, the travel switch senses the lower moving knife and transmits a signal to the control system. The control system sends a stopping instruction for the lower moving knife at the specified position and simultaneously controls the plug valve to close, realizing feedback to the control system when the equipment stops stably and achieving the continuity of the blockage clearing tool and the plug valve; the lower moving knife extends below the valve plate until the scraper passes through the position where the valve plate is located. In this way, during the operation of the rotary blockage clearing machine, the materials easily hanging on the plug valve plate slot can be cleaned in time, thus solving the problem of material hanging and blockage inside the plug valve; the lower moving knife has a fixed stopping position inside the fixed cylinder, and a notch is provided on the valve plate corresponding to the stopping position of the lower moving knife to avoid the lower moving knife and prevent interference between the lower moving knife and the plug valve plate.

[0011] The beneficial effects of the present invention are as follows: By changing the material conveying pipe into a blockage clearing mechanism, it can effectively solve the problems of blockage and adhesion during the material discharging process of the central feeder, laying a foundation for ensuring the normal operation of production. Brief Description of the Drawings

[0012] The structure and characteristics of the present invention will be further described below in conjunction with the drawings.

[0013] Figure 1 is the structural schematic diagram of the present invention.

[0014] Figure 2 is the structural schematic diagram of the blockage clearing mechanism in the present invention.

[0015] Figure 3 is Figure 2 the top view of

[0016] Appendix Figures 1 - 3 In the figure, 1, fixed cone; 2, upper moving knife; 3, column; 4, rotating cone; 5, middle fixed knife; 6, lower moving knife; 7, valve plate; 8, guide rail groove; 9, notch; 10, fixed cylinder; 11, blockage clearing mechanism; 12, plug valve; 13, discharge port; 14, storage bin; 15, support arm; 16, inner cone; 17, discharging mechanism; 18, transmission mechanism; 19, driving mechanism; 20, maintenance passage. Detailed Embodiment

[0017] Refer to Appendix Figures 1 - 3This is an embodiment of the present invention, which discloses a central feeder with a plugging clearing function, including a storage bin 14, a discharging mechanism 17, a transmission mechanism 18, a discharge port 13 and a plugging clearing mechanism 11 arranged from top to bottom. An inner cone 16 is provided inside the storage bin 14. The discharging mechanism 17 is connected to a driving mechanism 19 through the transmission mechanism 18. The input end of the discharge port 13 is communicated with the storage bin 14, and the output end is connected with the plugging clearing mechanism 11. The plugging clearing mechanism 11 includes a fixed cone 1, a rotating cone 4, a fixed cylinder 10 and a sluice valve 12 which are arranged and communicated in sequence from top to bottom. A power mechanism is connected to the outside of the rotating cone 4. An upper moving knife 2 is arranged along the inner wall of the fixed cone 1. One end of the upper moving knife 2 is fixed on the outside of the rotating cone 4 near the top. A middle fixed knife 5 is arranged along the inner wall of the rotating cone 4. One end of the middle fixed knife 5 is fixed on the outside of the fixed cone 1 near the bottom, and the other end is fixed on the outside of the fixed cylinder 10 near the top. A lower moving knife 6 is arranged along the inner wall of the fixed cylinder 10. One end of the lower moving knife 6 is fixed on the outside of the rotating cone 4 near the bottom. The sluice valve 12 includes a valve plate 7 and a guide rail groove 8 for limiting the movement of the valve plate 7. The other end of the lower moving knife 6 extends below the valve plate 7. It also includes a control system. The control system controls the rotation of the rotating cone 4. At this time, the upper moving knife 2 and the lower moving knife 6 rotate accordingly to clear the blockage. At this time, the sluice valve 12 is in an open state. When the blockage is cleared, the upper moving knife 2 and the lower moving knife 6 stop at the edge near the middle fixed knife 5. A notch 9 is provided on the valve plate 7 corresponding to the stop position of the lower moving knife 6. At this time, the sluice valve 12 executes a closing instruction.

[0018] The present invention also proposes that sealing structures are provided at the joints of the rotating cone 4 with the fixed cone 1 and the fixed cylinder 10 respectively to avoid leakage during the material conveying process. A travel switch is provided at the stop position of the lower moving knife 6. When the lower moving knife 6 cannot stop at the specified position according to the control of the control system, the travel switch senses the lower moving knife 6 and transmits a signal to the control system. The control system sends a stop instruction for the lower moving knife 6 at the specified position and simultaneously controls the sluice valve 12 to close. The travel switch used can avoid interference between the lower moving knife and the valve plate.

[0019] Support arms 15 and a maintenance passage 20 are also provided inside the storage bin 14. The storage bin 14 and the inner cone 16 are connected through the support arms 15, and a maintenance passage 20 is provided between the storage bin 14 and the inner cone 16.

[0020] The outside of the plugging clearing mechanism 11 is supported by a plurality of columns 3 to ensure the stability of the plugging clearing mechanism.

[0021] When the present invention is in use, below the storage bin 14, the material is stored in the gap between the storage bin 14 and the inner cone 16. The discharging mechanism 17 drives the transmission mechanism 18 through the driving mechanism 19, and the transmission mechanism 18 discharges the material to the discharge port 13. The output speed of the driving mechanism 19 can be automatically adjusted as needed to control the material flow rate.

[0022] After the central feeder discharges material from the discharge port 13, it enters the blockage clearing mechanism 11. By controlling the rotation of the rotating cone 4 through the control system, the upper moving knife 2 and the lower moving knife 6 are driven to clear the blockage of the fixed cone 1 and the fixed cylinder 10 respectively, while the middle fixed knife 5 remains stationary. By rotating the rotating cone 4, the inner wall of the rotating cone 4 is cleared of blockage. After the blockage clearing is completed, the upper moving knife 2 and the lower moving knife 6 stop at the edge close to the middle fixed knife 5. A notch 9 is provided on the valve plate 7 corresponding to the stopping position of the lower moving knife 6. At this time, the plug valve 12 executes the closing instruction; when the lower moving knife 6 cannot stop at the specified position according to the control of the control system, the travel switch senses the lower moving knife 6 and transmits a signal to the control system. The control system sends a stop instruction for the lower moving knife 6 at the specified position and at the same time controls the plug valve 12 to close, realizing feedback to the control system when the equipment stops, and realizing the continuity of the work of the blockage clearing tool and the plug valve 12; the lower moving knife 6 extends below the valve plate 7 until the scraper passes through the position where the valve plate 7 is located. In this way, during the operation of the rotary blockage clearing machine, the material easily caught in the slot of the valve plate 7 of the plug valve 12 can be cleaned in time, thus solving the problem of material hanging and blockage inside the plug valve 12; the lower moving knife 6 has a fixed stopping position inside the fixed cylinder 10, and a notch 9 is provided on the valve plate 7 corresponding to the stopping position of the lower moving knife 6 to avoid the lower moving knife 6 and prevent interference between the lower moving knife 6 and the valve plate 7 of the plug valve 12.

[0023] The above-described are only the preferred embodiments of the present invention. The above specific embodiments are not limitations on the present invention. Any modification, alteration or equivalent replacement made by those of ordinary skill in the art based on the above description shall fall within the protection scope of the present invention.

Claims

1. A central feeder with a function of unclogging, characterized in that: It includes a storage bin, a discharging mechanism, a transmission mechanism, a discharge port and a blockage clearing mechanism arranged from top to bottom. An inner cone is provided inside the storage bin. The discharging mechanism is connected to a driving mechanism through the transmission mechanism. The input end of the discharge port is communicated with the storage bin, and the output end is connected with the blockage clearing mechanism. The blockage clearing mechanism includes a fixed cone, a rotating cone, a fixed cylinder and a knife gate valve arranged in sequence from top to bottom and communicated with each other. A power mechanism is connected to the outside of the rotating cone. An upper moving knife is arranged along the inner wall of the fixed cone. One end of the upper moving knife is fixed to the outside of the rotating cone near the top. A middle fixed knife is arranged along the inner wall of the rotating cone. One end of the middle fixed knife is fixed to the outside of the fixed cone near the bottom, and the other end is fixed to the outside of the fixed cylinder near the top. A lower moving knife is arranged along the inner wall of the fixed cylinder. One end of the lower moving knife is fixed to the outside of the rotating cone near the bottom. The knife gate valve includes a valve plate and a guide rail groove for limiting the movement of the valve plate. The other end of the lower moving knife extends below the valve plate.

2. The central feeder with blockage clearing function according to claim 1, characterized in that: The blockage clearing mechanism further includes a control system. The control system controls the rotation of the rotating cone. At this time, the upper moving knife and the lower moving knife rotate along with it to clear the blockage. At this time, the knife gate valve is in an open state. When the blockage clearing is completed, the upper moving knife and the lower moving knife stop at the edge near the middle fixed knife. A notch is provided on the valve plate corresponding to the stop position of the lower moving knife. At this time, the knife gate valve executes a closing instruction.

3. The central feeder with a plug cleaning function according to claim 1, characterized in that: Sealing structures are provided at the joints of the rotating cone with the fixed cone and the fixed cylinder respectively.

4. The central feeder with a plugging clearing function according to claim 1, characterized in that: A travel switch is provided at the stop position of the lower moving knife. When the lower moving knife cannot stop at the designated position according to the control of the control system, the travel switch senses the lower moving knife and transmits a signal to the control system. The control system sends a stop instruction for the lower moving knife at the designated position and simultaneously controls the closing of the knife gate valve.

5. The central feeder with a function of removing blockages according to claim 1, characterized in that: Support arms and a maintenance passage are further provided inside the storage bin. The storage bin and the inner cone are connected through the support arms, and a maintenance passage is provided between the storage bin and the inner cone.

6. The central feeder with a function of clog clearing according to claim 1, characterized in that: Multiple column supports are provided outside the blockage clearing mechanism.

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