Closed rotary silo

Abstract

The utility model relates to a closed rotary silo, and belongs to the field of storage equipment. Comprising a rotating bin and fixed bins at the two ends of the rotating bin, scraper sets penetrating into the rotating bin are arranged in the two fixed bins, the rotating bin and the fixed bins are rotationally connected through sealed pivotal bearings, and when the rotating bin rotates, the scraper sets move relative to the inner wall of the rotating bin, so that materials are stripped and fall off from the inner wall of the rotating bin; and a pin tooth and a rotary driving device matched with the pin tooth are arranged on one rotary bearing so as to drive the pin tooth to rotate. The rotating bin comprises a cylindrical bin body and a funnel bin body, a bearing device is arranged on the outer wall of the rotating bin, and the bearing device comprises a riding wheel set, a guide rail and a weighing pressing head set. The problems that materials adhere to the inner wall of the stock bin and the stock bin is bulked can be effectively solved, the labor intensity of field operators is reduced, and potential safety hazards during production, operation and maintenance are avoided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the storage equipment field relates to a closed rotary silo. BACKGROUND

[0002] In today's highly industrialized production environment, the silo as a key equipment for storing and conveying materials, its stable operation is crucial to the coherence and efficiency of the entire production process. However, due to the limitations of the design structure of the silo or the physical and chemical properties of the material itself, such as viscosity, humidity, uneven particle size distribution, etc., it often leads to abnormal phenomena such as silo breakage, blockage, etc. This not only affects the continuous operation of the production line, but also may cause equipment damage, capacity reduction, and even in extreme cases, improper cleaning of blockage may cause safety accidents, resulting in personnel casualties, especially in industries such as metallurgy, coal chemical industry, cement, etc., which is particularly prominent.

[0003] To cope with these challenges, the industry has tried and adopted a variety of measures, including but not limited to installing vibration devices, air cannons, rotating unblockers, and manual unblocking. The vibration device promotes material loosening by mechanical vibration, reducing adhesion; the air cannon uses instantaneous high-pressure airflow to impact the blockage point to achieve dredging; the rotating unblocker directly physically removes the blockage by mechanical rotating parts; and manual unblocking is the only choice when automated means fail, directly by workers into the silo for cleaning. These methods have alleviated the problem of blockage and silo to some extent, reducing the frequency of failure, but each has limitations, such as high energy consumption, high maintenance cost, sensitivity to material properties, high safety risk, etc., which cannot fundamentally eradicate this stubborn problem.

[0004] In view of this, the utility model provides an innovative solution to solve the problem of silo blockage and silo from the source, improve the stability and safety of industrial production, achieve rapid and efficient treatment of blockage, and minimize energy consumption and damage to materials, and improve safety during production. SUMMARY

[0005] Therefore, the utility model aims at providing a closed rotary silo, which can effectively solve the problem of material sticking to the inner wall of the silo and silo, reduce the labor intensity of field workers, and avoid safety hazards during production operation and maintenance.

[0006] To achieve the above purpose, the utility model provides the following technical scheme:

[0007] A closed rotary silo, comprising vertically arranged rotary bins and fixed bins arranged at both ends of the rotary bins, a base is arranged in each of the fixed bins, a blade is arranged on the base and extends into the rotary bin, the rotary bin rotates relative to the fixed bin, and the blade moves relative to the inner wall of the rotary bin to peel off and fall off the material from the inner wall of the rotary bin.

[0008] Optionally, the rotary bin and the fixed bin are connected through a sealing device.

[0009] The sealing device comprises a slewing bearing, the slewing bearing comprises a first inner ring and a first outer ring which are nested and rotationally connected, the first inner ring is fixedly connected with the fixed bin, and the first outer ring is fixedly connected with the rotary bin; the slewing bearing comprises a second inner ring and a second outer ring which are nested and rotationally connected, the second inner ring is fixedly connected with the rotary bin, and the second outer ring is fixedly connected with the fixed bin.

[0010] Mechanical labyrinth seals are arranged between the inner ring and the outer ring.

[0011] Optionally, a pin tooth is arranged on the outer periphery of the slewing bearing, and a slewing driving device matched with the pin tooth is arranged.

[0012] Optionally, the slewing driving device comprises a gear matched with the pin tooth, and a motor connected with the gear and driving the gear to rotate.

[0013] Optionally, the slewing driving device further comprises a liquid / gas pressure unit connected with the gear, and the liquid / gas pressure unit is used for adjusting the meshing tightness of the gear and the pin tooth.

[0014] Optionally, a PLC control device electrically connected with the motor is further arranged.

[0015] Optionally, an oil injection hole is reserved on the sealing device.

[0016] Optionally, the rotary bin comprises a cylindrical bin body and a funnel bin body connected with each other, the outlet of the funnel bin body is connected with the fixed bin through the sealing device, the blade extends into the cylindrical bin body, and the blade extends into the funnel bin body.

[0017] Optionally, a bearing device is arranged on the outer wall of the rotary bin, the bearing device comprises a group of supporting wheels arranged on the circumference of the outer wall of the rotary bin, and a guide rail supporting the group of supporting wheels, and a group of weighing pressure heads are arranged below the guide rail.

[0018] Optionally, an observation port is arranged on the fixed bin.

[0019] The beneficial effects of the utility model lie in:

[0020] The utility model discloses can effectively solve the problem such as material sticking to the inner wall of the bin, and reduce the labor intensity of the on-site operator, avoid the security risk during production operation and maintenance. Through the relative rotation between the rotary bin and the fixed bin, the blade arranged on the inner wall of the rotary bin can efficiently strip the material on the bin wall, and the processing efficiency of the material is improved. The sealing device effectively improves the sealing performance of the overall structure, prevents material leakage, and the design of the oil injection hole facilitates regular maintenance, lubricates the slewing bearing and prolongs the service life. Through the setting of the PLC control device, the rotation speed, direction and frequency of the slewing driving device are accurately controlled, the intelligent control of the rotary bin is realized, the rotation direction and frequency can be flexibly adjusted according to actual needs, and the convenience and accuracy of operation are improved. Finally, the design of the load bearing device not only ensures the stable operation of the rotary bin, but also provides strong support for accurate control of the material processing capacity through real-time weighing function.

[0021] The other advantages, objects and features of the utility model will be described in the subsequent specification to some extent, and to some extent, it will be obvious to those skilled in the art based on the study of the following text or can be taught from the practice of the utility model. The objects and other advantages of the utility model can be realized and obtained through the following specification. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to make the purpose, technical scheme and advantages of the utility model more clear, the utility model will be preferred in the following detailed description combined with the drawings, wherein:

[0023] Figure 1 The utility model discloses a schematic view.

[0024] Reference signs:

[0025] 1 fixed bin, 11 base, 12 blade, 2 fixed bin, 21 base, 22 blade, 3 rotary bin, 31 cylindrical bin body, 32 funnel bin body, 4 sealing device, 41 slewing bearing, 42 pin gear, 5 sealing device, 51 slewing bearing, 6 slewing driving device, 61 gear, 62 motor, 7 load bearing device, 71 carrier roller set, 72 guide rail, 8 observation port. DETAILED DESCRIPTION

[0026] The following embodiments of the present application will be described in detail by specific examples. Other advantages and effects of the present application can be easily understood by those skilled in the art from the content disclosed in the present specification. The present application can also be implemented or applied by different specific embodiments, and various modifications or changes can be made to the details in the present specification based on different views and applications without departing from the spirit of the present application. It should be noted that the drawings provided in the following embodiments only schematically illustrate the basic concept of the present application, and the following embodiments and features in the embodiments can be combined with each other without conflict.

[0027] The drawings are only used for exemplary illustration, and the representation is only a schematic diagram, not a physical diagram, and should not be understood as a limitation of the present application; in order to better illustrate the embodiments of the present application, some components in the drawings can be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings can be omitted.

[0028] The same or similar reference numerals in the drawings of the embodiments of the present application correspond to the same or similar components; in the description of the present application, it should be understood that if the terms "upper", "lower", "left", "right", "front", "back" and the like indicate the orientation or positional relationship shown in the drawings, they are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, therefore the terms describing the positional relationship in the drawings are only used for exemplary illustration, and should not be understood as a limitation of the present application, for those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0029] Please refer to Figure 1 It is a kind of closed rotary silo, including vertically arranged rotating bin 3 and the fixed bin being arranged at the both ends of rotating bin 3, one end is fixed bin 1, the other end is fixed bin 2, fixed bin 1 is fed, and fixed bin 2 is discharged;Base 11 is arranged on the inclined inner wall of fixed bin 1, blade 12 is arranged on base 11 and extends into rotating bin 3, base 21 is arranged on the inclined inner wall of fixed bin 2, blade 22 is arranged on base 21 and extends into rotating bin 3;Rotating bin 3 rotates relative to fixed bin, blade 22 moves relative to the inner wall of rotating bin 3, and the material is stripped and falls off from the inner wall of rotating bin 3. Wherein the blade is double-edged blade, the blade edge is arc-shaped, the length of the blade is matched with the size of rotating bin 3, and the distance between the blade and the inner wall of rotating bin 3 is kept at 3mm-10mm, and the spacing can be flexibly adjusted.

[0030] The fixed bin is in the shape of a cylinder or a cone, with a height of 500mm-800mm, the bin wall is inclined at an angle of 60°-90°, and a maintenance observation port 8 is provided on the fixed bin; the overall height of the rotating bin 3 is 1m-20m.

[0031] The base 11 and the blade 12 connected with the fixed bin 1 form a first scraper group, and the base 21 and the blade 22 connected with the fixed bin 2 form a second scraper group, the first scraper group is provided with 1-4 groups, and the second scraper group is provided with 1-2 groups, which basically realizes full coverage cleaning of the inner wall of the rotating bin 3. The base is welded on the inner wall of the fixed bin, and the blade is connected with the base by high-strength bolts.

[0032] The rotating bin 3 is connected with the fixed bin 1 through the sealing device 4, and the rotating bin 3 is connected with the fixed bin 2 through the sealing device 5; the sealing device 4 includes a slewing bearing 41, which includes a first inner ring and a first outer ring that are nested and rotationally connected, the first inner ring is fixedly connected with the fixed bin 1, and the first outer ring is fixedly connected with the rotating bin 3; the sealing device 5 includes a slewing bearing 51, which includes a second inner ring and a second outer ring that are nested and rotationally connected, the second inner ring is fixedly connected with the rotating bin 3, and the second outer ring is fixedly connected with the fixed bin 2.

[0033] The dynamic and static combination parts of the sealing device 4 and the sealing device 5 are all mechanically labyrinth sealed, that is, mechanical labyrinth seals are provided between the first inner ring and the first outer ring, and mechanical labyrinth seals are provided between the second inner ring and the second outer ring. Oil injection holes are reserved on the sealing device 4 and the sealing device 5 to facilitate regular lubricating oil injection.

[0034] The outer periphery of the slewing bearing 41 is provided with a pin tooth 42, and a slewing driving device 6 matched with the pin tooth 42. The rack thickness of the pin tooth 42 is 100mm-150mm, the rack height is 200mm-500mm, the rack width is 50mm-100mm, and the distance between adjacent racks is 50mm-150mm.

[0035] The slewing driving device 6 includes a gear 61 matched with the pin tooth 42, and a motor 62 connected with the gear 61 and driving the gear 61 to rotate. The motor 62 is electrically connected with the PLC control device, and the rotation direction and rotation frequency of the driving gear 61 are adjusted by the PLC background control device.

[0036] The slewing driving device 6 further includes a liquid / gas pressure unit connected with the gear 61, which is used to adjust the engagement tightness of the gear 61 and the pin tooth 42, so as to realize the smooth operation of the slewing driving device 6 under different load conditions. In the relatively static state, the gear 61 and the pin tooth 42 are not in contact, and a gap of 10mm-20mm is maintained. The driving mode is fixed speed or variable frequency speed regulation, and the rotating bin 3 rotates at a set speed.

[0037] The rotary bin 3 comprises a cylindrical bin body 31 and a funnel bin body 32 connected with each other, and the outlet of the funnel bin body 32 is connected with the fixed bin 2 through the sealing device 5; the blade 12 extends into the cylindrical bin body 31, and the blade 22 extends into the funnel bin body 32.

[0038] The outer wall of the rotary bin 3 is provided with a bearing device 7 connected with the civil structure; the bearing device 7 comprises a plurality of groups of supporting wheels 71 arranged on the circumference of the outer wall of the rotary bin 3 and guide rails 72 supporting the groups of supporting wheels 71, and a group of weighing pressure heads is arranged below the guide rails 72; the groups of supporting wheels 71 are arranged in 3-10 groups; the group of weighing pressure heads is electrically connected with the PLC control device, and the weighing signal is displayed in real time.

[0039] The operation steps of the sealed rotary bin are as follows:

[0040] The rotary drive device 6 is started, the fixed bin 1 starts feeding, the gear 61 is driven to rotate by the speed reducer 62, and the pin gear 42 fixed on the upper part of the rotary bin 3 is driven to move relatively in the rotating process; in the movement process of the rotary bin 3, the material on the bin wall contacts with the blade, so that the material is stripped and falls off from the bin wall, and the fallen material is discharged from the fixed bin 2 at the bottom of the rotary bin 3. In the working process of the rotary bin 3, the groups of supporting wheels 71 fixed on the bin body are driven to move in the same direction, the group of weighing pressure heads inputs the weighing signal into the PLC program to display in real time, and the rotation function is flexibly controlled according to the discharge amount; the speed reducer 62 is connected with the PLC background control device, and the rotation direction and rotation frequency of the driving gear 61 are controlled through the PLC background control device.

[0041] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the utility model and are not limited, although the utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the utility model can be modified or replaced equivalently without departing from the purpose and scope of the technical solutions, and all should be covered in the claim range of the utility model.

Claims

1. An enclosed rotary silo, characterized by: The vertical rotating bin (3) and the fixed bins (1, 2) arranged at both ends of the rotating bin (3) are provided with bases (11, 21) respectively, and the blades (12, 22) are arranged on the bases (11, 21) and extend into the rotating bin (3), the rotating bin (3) rotates relative to the fixed bins (1, 2), and the blades (12, 22) move relative to the inner wall of the rotating bin (3) to peel off the material from the inner wall of the rotating bin (3).

2. The closed rotary silo according to claim 1, characterized in that: The rotating bin (3) and the fixed bins (1, 2) are connected through sealing devices (4, 5); The sealing devices (4, 5) each include a slewing bearing (41, 51), the slewing bearing (41) includes a first inner ring and a first outer ring which are nested and rotationally connected, the first inner ring is fixedly connected with the fixed bin (1), and the first outer ring is fixedly connected with the rotating bin (3); the slewing bearing (51) includes a second inner ring and a second outer ring which are nested and rotationally connected, the second inner ring is fixedly connected with the rotating bin (3), and the second outer ring is fixedly connected with the fixed bin (2); Mechanical labyrinth seals are arranged between the inner ring and the outer ring.

3. The closed rotary silo according to claim 2, characterized in that: A pin tooth (42) is arranged on the outer periphery of the slewing bearing (41), and a slewing driving device (6) matched with the pin tooth (42) is arranged.

4. The closed rotary silo according to claim 3, characterized in that: The slewing driving device (6) includes a gear (61) matched with the pin tooth (42), and a motor (62) connected with the gear (61) and driving the gear (61) to rotate.

5. The closed rotary silo according to claim 4, characterized in that: The slewing driving device (6) further includes a liquid / gas pressure unit connected with the gear (61), and the liquid / gas pressure unit is used for adjusting the engagement tightness of the gear (61) and the pin tooth (42).

6. The closed rotary silo of claim 4, wherein: A PLC control device electrically connected with the motor (62) is further included.

7. The closed rotary silo of claim 2, wherein: An oil injection hole is reserved on the sealing device (4, 5).

8. The closed rotary silo of claim 2, wherein: The rotating bin (3) includes a cylindrical bin body (31) and a funnel bin body (32) connected with each other, the outlet of the funnel bin body (32) is connected with the fixed bin (2) through the sealing device (5), the blade (12) extends into the cylindrical bin body (31), and the blade (22) extends into the funnel bin body (32).

9. The closed rotary silo of claim 1, wherein: A bearing device (7) is arranged on the outer wall of the rotating bin (3); the bearing device (7) includes a group of supporting wheels (71) arranged on the outer wall of the rotating bin (3), and a guide rail (72) supporting the group of supporting wheels (71), and a group of weighing pressure heads are arranged below the guide rail (72).

10. The closed rotary silo of claim 1, wherein: An observation port (8) is arranged on the fixed bin (1, 2).

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