Large steel silo bulk system

Abstract

A large steel silo bulk system effectively solves the problems that a formwork of a concrete structure is difficult to manufacture, and the construction period is long. Comprising a steel plate silo body, the steel plate silo body comprises a spiral silo body, a silo top is fixed to the top of the spiral silo body, a conical silo bottom is fixedly connected to the bottom of the spiral silo body, a plurality of symmetrically-distributed supporting legs are fixed to the bottom of the silo bottom, and a same middle plate is fixed to the middles of the supporting legs; a discharging pipe is arranged at the bottom of the bin bottom, a discharging pipe penetrating through the middle plate is coaxially fixed to the lower portion of the discharging pipe, and a bulk head is fixed to the end, away from the discharging pipe, of the discharging pipe. The steel silo is ingenious in structure and convenient to use, a concrete structure is replaced through the arrangement of steel components such as the ring beams, the oblique beams and the supporting legs, the steel silo is not limited by the concrete construction technology any more, the construction period of the steel silo is shortened, meanwhile, the ring beams and the oblique beams both adopt I-shaped steel components, and the supporting strength of the silo bottom is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of steel silos, in particular to a large steel silo bulk system. Background Art

[0002] A steel silo is a large-scale storage facility mainly constructed with high-strength steel, and is widely used in multiple industries such as industrial and agricultural fields, urban and rural construction, and environmental protection industry.

[0003] With the rapid development of industry, the required volume of steel silos for bulk systems is getting larger and larger. Traditional small steel silos with conical hoppers are increasingly difficult to meet the needs of industrial development. There is an urgent need to develop a new type of large steel silo bulk system with a storage capacity of at least several thousand tons to adapt to the rapid development of the bulk material storage and transportation industry.

[0004] Chinese Patent with application number CN202321793757.1 discloses a steel silo structure with bottom discharging, including a steel silo located on a foundation support column. A steel conical hopper is fixedly connected to the bottom of the steel silo. Multiple air inflation boxes are fixedly installed inside the steel cone. The air inflation boxes are connected to a Roots blower. A discharge pipe is fixedly connected to the outlet at the lower end of the steel conical hopper. A manual valve is installed on the discharge pipe, a pneumatic automatic control valve is installed under the manual valve, and a bulk loader is installed under the pneumatic automatic control valve. By replacing the slope inside the silo with a conical hopper, the project volume is reduced, the cost is significantly reduced, and it is easy to install and manufacture. The related equipment on the conical hopper can be installed on the ground and is easy to maintain during use.

[0005] The existing steel silo system still has the following problems:

[0006] 1. Due to the high height and large diameter of large steel silos, especially for steel silos with a capacity of more than 1000 tons, the bottom material pressure of the silo is very high. The bottom and columns of large steel silos usually adopt a concrete structure. Due to construction process limitations, it is difficult to make templates for large concrete structures, and the construction period is long. Especially when the outside temperature is relatively low, it will slow down the entire project cycle.

[0007] 2. Air inflation boxes and decompression cones are generally set at the bottom of the steel silo. The air inflation boxes are arranged in a circular pattern around the discharge port at the bottom of the silo, and an air supply pipe is also set at the bottom of the silo. When the existing air supply pipe is connected to the air inflation box, not only does it take a long time to install, but it is also not convenient to repair when there is air leakage at the connection between the air supply pipe and the air inflation box. Content of the Utility Model

[0008] In view of the above problems, the present invention provides a large steel silo bulk system, which has the advantages of a fast construction period for the silo body and convenient installation of internal air inflation boxes and air supply pipes.

[0009] The technical solution it adopts is that the utility model includes a steel silo main body, the steel silo main body includes a spiral silo body, the top of the spiral silo body is fixed with a silo top, the bottom of the spiral silo body is fixedly connected with a conical silo bottom, the bottom of the silo bottom is fixed with a plurality of symmetrically distributed support legs, the middle parts of the plurality of support legs are fixed with the same middle plate, a discharge pipe is arranged at the bottom of the silo bottom, a blanking pipe penetrating the middle plate is coaxially fixed below the discharge pipe, the end of the blanking pipe away from the discharge pipe is fixed with a bulk head, and the bulk head is fixed at the bottom of the middle plate;

[0010] A pressure reduction cone is coaxially fixed on the silo bottom, the pressure reduction cone includes a conical part and a vertical part, and a plurality of through holes evenly distributed in the circumferential direction are formed in the vertical part;

[0011] The silo bottom includes a plurality of ring beams with different diameters, the ring beams are coaxial with the spiral silo body, a plurality of obliquely arranged beams evenly distributed in the circumferential direction are fixedly connected to the plurality of ring beams, bottom plates are fixed on both the upper and lower sides of the obliquely arranged beams and the ring beams, the cross sections of the ring beams and the obliquely arranged beams are both I-shaped, and the plurality of support legs are all steel members and are arranged in an inner and outer double layer below the silo bottom;

[0012] A plurality of annular inflation parts are fixed on the silo bottom, the diameters of the plurality of inflation parts change in a stepped manner, the inflation part includes a plurality of inflation boxes evenly distributed in the circumferential direction, the long sides of the inflation boxes are consistent with the diameter direction of the silo bottom, an air inlet pipe is arranged on the inflation box, a plurality of annular air charging pipes are fixed on the silo bottom, the air charging pipes are connected with the adjacent air inlet pipes through pipelines, a Roots blower is arranged on one side of the steel silo main body, and the air charging pipes are communicated with the Roots blower through pipelines.

[0013] Preferably, a plurality of annular steel plates are fixed on the silo bottom, an annular groove is formed between the annular steel plates, the inflation part is located on the annular steel plates, the air charging pipes are located in the annular groove, the adjacent inflation boxes along the diameter direction of the silo bottom are arranged in pairs symmetrically, a plurality of connecting pipes are arranged on the air charging pipes, threaded grooves are formed in the connecting pipes, a three-way pipe is arranged above the connecting pipes, the three-way pipe includes a main pipe and two branch pipes, a threaded cylinder is threadedly connected to the bottom of the main pipe, a plurality of wedge-shaped blocks evenly distributed in the circumferential direction are fixed on the air inlet pipe, sliding cylinders are threadedly connected to both of the two branch pipes, and a stop block matched with the wedge-shaped block is arranged in the sliding cylinder;

[0014] The sliding cylinder is divided into two symmetrically distributed semi-cylindrical bodies, and the two semi-cylindrical bodies are connected by bolts.

[0015] Preferably, the inner diameter of the branch pipe is smaller than the outer diameter of the air inlet pipe, the outer diameter of the branch pipe is larger than the outer diameter of the air inlet pipe, the end of the air inlet pipe is in contact with the end of the branch pipe, and a sealing rubber ring is arranged at the end of the branch pipe.

[0016] Preferably, a sealing ring is sleeved on the air inlet pipe, and the sealing ring is located between the wedge-shaped block and the branch pipe.

[0017] Preferably, a plurality of anti-slip grooves are evenly distributed in a circumferential manner on both the threaded barrel and the sliding barrel.

[0018] Preferably, an automatic valve is arranged in the discharge pipe, and a manual valve is arranged on the bulk head.

[0019] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0020] 1. By arranging steel components such as the ring beam, inclined beam and support legs, the concrete structure is replaced, and it is no longer limited by the restrictions of the concrete construction process, which speeds up the construction period of the steel silo. At the same time, both the ring beam and the inclined beam adopt I-beam components, which strengthen the support strength of the silo bottom.

[0021] 2. Through the settings of the tee pipe, wedge-shaped block, sliding barrel and threaded barrel, the air inlet pipe is abutted against the branch pipe, and the sliding barrel is rotated. The blocking block inside the sliding barrel forms a limit with the wedge-shaped block, realizing the rapid installation of the tee pipe and the inflatable box. When problems such as structural damage or air leakage occur in the tee pipe, the tee pipe and the internal sealing ring can be quickly replaced. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a plan view of the utility model.

[0023] Figure 2 is a schematic view of the inflating part of the utility model.

[0024] Figure 3 is a schematic view of the cooperation between the inclined beam and the ring beam of the utility model.

[0025] Figure 4 is a schematic view of the annular groove of the utility model.

[0026] Figure 5 is a schematic view of the tee pipe and its connecting parts of the utility model.

[0027] Figure 6 is a schematic view of the cooperation between the sliding barrel and the air inlet pipe of the utility model.

[0028] Figure 7 is a schematic view of the wedge-shaped block and the sealing ring of the utility model.

[0029] Explanation of the reference numerals in the schematic views:

[0030] 1. Main body of steel silo; 2. Spiral silo body; 3. Silo top; 4. Silo bottom; 5. Support legs; 6. Intermediate plate; 7. Discharge pipe; 8. Feeding pipe; 9. Bulk head; 10. Pressure reducing cone; 11. Ring beam; 12. Inclined beam; 13. Inflation box; 14. Inlet pipe; 15. Inflation pipe; 16. Annular steel plate; 17. Annular groove; 18. Connecting pipe; 19. Three-way pipe; 20. Threaded cylinder; 21. Wedge block; 22. Slide cylinder; 23. Sealing ring; 24. Anti-slip groove. Specific embodiments

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] As shown by Figures 1 to 3 , it includes the main body 1 of the steel silo. The main body 1 of the steel silo includes a spiral silo body 2. A silo top 3 is fixed at the top of the spiral silo body 2. A conical silo bottom 4 is fixedly connected to the bottom of the spiral silo body 2. The conical inclination angle of the silo bottom 4 is about 10°. A plurality of symmetrically distributed support legs 5 are fixed at the bottom of the silo bottom 4. The middle parts of the plurality of support legs 5 are fixed with the same intermediate plate 6 to enhance the support strength of the silo bottom 4. A discharge pipe 7 is arranged at the bottom of the silo bottom 4. A feeding pipe 8 passing through the intermediate plate 6 is coaxially fixed below the discharge pipe 7. A bulk head 9 is fixed at one end of the feeding pipe 8 away from the discharge pipe 7. The bulk head 9 is fixed at the bottom of the intermediate plate 6. An automatic valve is arranged in the discharge pipe 7. A manual valve is arranged on the bulk head 9. The powdery material is concentrated in the cylindrical space formed by the spiral silo body 2 and the silo bottom 4. The transport vehicle moves below the bulk head 9. The automatic valve is controlled to open, and the material falls into the bulk head 9. The manual valve is manually opened, and the material enters the vehicle through the bulk head 9;

[0033] In order to avoid excessive load on the structure of the silo bottom 4 caused by the material, a pressure reducing cone 10 is coaxially fixed on the silo bottom 4. The pressure reducing cone 10 includes a conical part and a vertical part. A plurality of circumferentially evenly distributed through holes are opened on the vertical part. The design of the pressure reducing cone 10 helps to change the falling direction of the material and guide the material to disperse around, which can prevent the material from accumulating and blocking at the central part and promote its smooth entry into the subsequent discharge system;

[0034] Due to the large material pressure at the bottom of the steel silo with a capacity of over 1000 tons, the bottom 4 and support legs 5 of the large steel silo are usually made of concrete structure. However, it is difficult to make the formwork for the large concrete structure, and the construction period is long. Especially when the outside temperature is relatively low, it will slow down the entire project cycle. The bottom 4 includes multiple ring beams 11 with different diameters. The ring beams 11 are coaxial with the spiral silo body 2. A plurality of circumferentially distributed inclined beams 12 are fixedly connected to the multiple ring beams 11. Bottom plates are fixedly arranged on both the upper and lower sides of the inclined beams 12 and the ring beams 11. The cross-sections of the ring beams 11 and the inclined beams 12 are both I-shaped. The ring beams 11 and the inclined beams 12 are made of I-beams. The support legs 5 are steel components and are arranged in an inner and outer double layer below the bottom 4 of the silo. Through the arrangement of steel components such as the ring beams 11, the inclined beams 12 and the support legs 5, the concrete structure is replaced, and it is no longer limited by the restrictions of the concrete construction process, which speeds up the construction period of the steel silo. At the same time, both the ring beams 11 and the inclined beams 12 adopt I-beam components, which enhances the support strength of the bottom 4 of the silo;

[0035] In order to achieve the fluidization of powdery or granular materials, a plurality of annular air inflation parts are fixedly arranged on the bottom 4 of the silo. The diameters of the plurality of air inflation parts change in a stepped manner. The air inflation part includes a plurality of circumferentially distributed air inflation boxes 13. The long sides of the air inflation boxes 13 are consistent with the diameter direction of the bottom 4 of the silo. An air inlet pipe 14 is arranged on the air inflation box 13. A plurality of annular air charging pipes 15 are fixedly arranged on the bottom 4 of the silo. The air charging pipes 15 are connected to the adjacent air inlet pipes 14 through pipelines. A Roots blower is arranged on one side of the main body 1 of the steel silo. The air charging pipes 15 are communicated with the Roots blower through pipelines. The air inflation boxes 13 form a gasification area in the steel warehouse, and the fluidization of powdery or granular materials is achieved by injecting air or other gases to promote the homogenization and smooth flow of the materials.

[0036] Reference Figures 4 to 6As shown, considering that the connection method between the existing charging pipe 15 and the charging box 13 is relatively cumbersome, not only is it inconvenient to install, but also it is not easy to maintain and replace when the connecting pipe 18 between the charging pipe 15 and the charging box 13 is damaged. A plurality of annular steel plates 16 are fixed on the bottom of the bin 4, an annular groove 17 is formed between the annular steel plates 16, the charging part is located on the annular steel plates 16, the charging pipe 15 is located in the annular groove 17, and the charging boxes 13 adjacent to each other along the diameter direction of the bottom of the bin 4 are arranged symmetrically in pairs. A plurality of connecting pipes 18 are arranged on the charging pipe 15, the number of the connecting pipes 18 is related to the number of the charging boxes 13 on both sides, and one connecting pipe 18 corresponds to two inlet pipes 14. Threaded grooves are formed in the connecting pipes 18, and a tee pipe 19 is arranged above the connecting pipes 18. The tee pipe 19 includes a main pipe and two branch pipes. A threaded cylinder 20 is threadedly connected to the bottom of the main pipe, and the main pipe and the connecting pipe 18 are connected through the threaded cylinder 20. A plurality of circumferentially evenly distributed wedge-shaped blocks 21 are fixed on the inlet pipe 14, counterbore holes are formed in the wedge-shaped blocks 21, and the wedge-shaped blocks 21 and the inlet pipe 14 are fixed by bolts. Slide cylinders 22 are threadedly connected to both of the two branch pipes. A retaining block matching the wedge-shaped block 21 is arranged in the slide cylinder 22. Through the settings of the tee pipe 19, the wedge-shaped block 21, the slide cylinder 22 and the threaded cylinder 20, etc., the worker only needs to install the tee pipe 19 on the connecting pipe 18. When the charging box 13 is not fixed yet, abut the inlet pipe 14 against the branch pipe, and rotate the slide cylinder 22. The retaining block inside the slide cylinder 22 forms a limit with the wedge-shaped block 21, so as to realize the rapid installation of the tee pipe 19 and the charging box 13;

[0037] In order to facilitate the installation of the slide cylinder 22, the slide cylinder 22 is divided into two symmetrically distributed semi-cylindrical tubes, and the two semi-cylindrical tubes are connected by bolts.

[0038] Reference Figure 5 and Figure 6 As shown in the reference and, in order to ensure the sealing performance between the branch pipe and the inlet pipe 14, the inner diameter of the branch pipe is smaller than the outer diameter of the inlet pipe 14, the outer diameter of the branch pipe is larger than the outer diameter of the inlet pipe 14, the end of the inlet pipe 14 is in contact with the end of the branch pipe, and a sealing rubber ring is arranged at the end of the branch pipe.

[0039] Reference Figure 6 As shown in the reference, in order to further strengthen the sealing performance between the branch pipe and the inlet pipe 14, a sealing ring 23 is sleeved on the inlet pipe 14, and the sealing ring 23 is located between the wedge-shaped block 21 and the branch pipe.

[0040] Reference Figure 5 and Figure 6 As shown in the reference and, in order to facilitate the worker to rotate the threaded cylinder 20 and the slide cylinder 22, a plurality of circumferentially evenly distributed anti-slip grooves 24 are formed on both the threaded cylinder 20 and the slide cylinder 22.

[0041] When the utility model is in use:

[0042] First, install the inflatable tube 15 in the annular groove 17, and fix the tee 19 and the connecting tube 18 through the threaded cylinder 20;

[0043] Then, connect the two branches of the tee 19 to the inflatable boxes 13 symmetrically distributed on both sides. During installation, first fix a plurality of wedge-shaped blocks 21 on the intake pipe 14 and keep them as evenly distributed in a circle as possible, put the sealing ring 23 on the intake pipe 14, then sleeved the sliding cylinder 22 on the intake pipe 14. The sliding cylinder 22 is threadedly connected to the branch pipe. When the sliding cylinder 22 is rotated, the inflatable box 13 approaches and is fixed to the branch pipe. During the approaching process, the sealing ring 23 is squeezed;

[0044] Secondly, after each installation of an inflatable box 13 and the branch pipe, the inflatable box 13 should be fixed on the annular steel plate 16;

[0045] Finally, during discharging, control the automatic valve to open, the material falls into the bulk head 9, manually open the manual valve, and the material enters the vehicle through the bulk head 9. During the discharging process, inflate the inside of the bin through the inflatable tube 15 and the inflatable box 13 to fluidize the material and accelerate the discharging speed.

[0046] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A large-scale steel silo bulk system, comprising a steel silo main body (1), characterized in that: The steel plate silo body (1) comprises a spiral silo body (2), a silo top (3) is fixed to the top of the spiral silo body (2), a conical silo bottom (4) is fixedly connected to the bottom of the spiral silo body (2), a plurality of symmetrically distributed supporting legs (5) are fixed to the bottom of the silo bottom (4), a same middle plate (6) is fixed to the middle of the plurality of supporting legs (5), a discharge pipe (7) is arranged at the bottom of the silo bottom (4), a discharge pipe (8) penetrating the middle plate (6) is coaxially fixed below the discharge pipe (7), a bulk head (9) is fixed to the end of the discharge pipe (8) away from the discharge pipe (7), and the bulk head (9) is fixed to the bottom of the middle plate (6); A decompression cone (10) is coaxially fixed on the silo bottom (4), the decompression cone (10) comprising a conical portion and a vertical portion, and the vertical portion is provided with a plurality of through holes evenly distributed around the circumference; The silo bottom (4) comprises a plurality of ring beams (11) of different diameters, the ring beams (11) being coaxial with the spiral silo body (2), a plurality of the ring beams (11) being fixedly connected to a plurality of inclined beams (12) uniformly distributed around the circumference, bottom plates being fixed to the upper and lower sides of the inclined beams (12) and the ring beams (11), the cross sections of the ring beams (11) and the inclined beams (12) being both I-shaped, and the plurality of support legs (5) being steel components and being arranged in an inner and outer double layer below the silo bottom (4); A plurality of annular inflatable parts are fixed on the silo bottom (4), and the diameters of the plurality of inflatable parts vary in a step-like manner. The inflatable parts include a plurality of circumferentially evenly distributed inflatable boxes (13), and the long sides of the inflatable boxes (13) are consistent with the diameter direction of the silo bottom (4). An air inlet pipe (14) is arranged on the inflatable box (13). A plurality of annular inflatable pipes (15) are fixed on the silo bottom (4), and the inflatable pipes (15) are connected to adjacent inlet pipes (14) through pipelines. A Roots blower is arranged on one side of the steel plate silo body (1), and the inflatable pipe (15) is connected to the Roots blower through a pipeline.

2. A large steel silo bulk system according to claim 1, characterized in that: A plurality of annular steel plates (16) are fixed on the silo bottom (4), annular grooves (17) are formed between the annular steel plates (16), the inflation portion is located on the annular steel plate (16), the inflation pipe (15) is located in the annular groove (17), the inflation boxes (13) adjacent to each other along the diameter direction of the silo bottom (4) are arranged symmetrically one by one, a plurality of connecting pipes (18) are arranged on the inflation pipe (15), a threaded groove is formed on the connecting pipe (18), a three-way pipe (19) is arranged above the connecting pipe (18), the three-way pipe (19) includes a main pipe and two branch pipes, the bottom of the main pipe is threadedly connected with a threaded cylinder (20), a plurality of wedge blocks (21) uniformly distributed around the circumference are fixed on the air inlet pipe (14), a slide cylinder (22) is threadedly connected to the two branch pipes, and a stopper matching the wedge block (21) is arranged in the slide cylinder (22); The slide cylinder (22) is divided into two symmetrically distributed semi-cylinders, and the two semi-cylinders are connected by bolts.

3. A large steel silo bulk system according to claim 2, characterized in that: The inner diameter of the branch pipe is smaller than the outer diameter of the intake pipe (14), and the outer diameter of the branch pipe is larger than the outer diameter of the intake pipe (14). The end of the intake pipe (14) contacts the end of the branch pipe, and a sealing rubber ring is provided at the end of the branch pipe.

4. A large steel silo bulk system according to claim 3, characterized in that: The air inlet pipe (14) is sleeved with a sealing ring (23), and the sealing ring (23) is located between the wedge block (21) and the branch pipe.

5. A large steel silo bulk system according to claim 2, characterized in that: The threaded cylinder (20) and the sliding cylinder (22) are both provided with a plurality of anti-slip grooves (24) evenly distributed around the circumference.

6. A large steel silo bulk system according to claim 1, characterized in that: The discharge pipe (7) is provided with an automatic valve, and the bulk loading head (9) is provided with a manual valve.

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