A homogenization silo for powder materials

Abstract

This utility model belongs to the field of silo technology, specifically a homogenizing silo for powder materials. It includes a silo shell, a silo cover fixedly installed on the top of the shell by several bolts, a feed pipe fixedly installed at the center of the top of the cover, multiple sets of annularly distributed feed pipes fixedly installed inside the shell, each feed pipe having multiple feed ports. A collecting hopper is installed at the bottom of the shell, and a discharge pipe is fixedly connected to the bottom of the hopper. A rotary discharge valve is fixedly installed on the discharge pipe. Through the multiple annularly distributed feed pipes and the feed ports with differentiated heights and directions, the silo can simultaneously collect materials of different batches and heights. Combined with the stirring rod inside the collecting hopper for stirring, the fluctuation of the powder material's technical indicators is effectively controlled, meeting the consistency requirements of large batches of materials.

Description

Technical Field

[0001] This utility model relates to the field of silo technology, specifically to a homogenization silo for powder materials. Background Technology

[0002] In chemical production, process fluctuations can lead to fluctuations in the properties of the produced materials, and these fluctuations directly reflect the quality grade of the product.

[0003] With the increasing refinement of process industries, the pursuit of the highest product quality has become a consensus. For large-scale plants with annual production capacities of tens or hundreds of thousands of tons, there is a common expectation that tens or hundreds of tons of powder materials can meet consistent technical specifications or have their fluctuations controlled within a very small range. Traditional mechanical mixing equipment can no longer meet the needs of such large-scale mixing operations. There is an urgent need to develop new homogenization and mixing equipment that is suitable for large batches of powder materials and is economical and practical, thereby improving production efficiency and product quality. We propose a homogenization silo for powder materials. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a homogenization silo for powder materials, thus solving the problems mentioned above.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A homogenizing silo for powder materials includes a silo shell, a silo cover fixedly installed on the top of the silo shell by a number of bolts, a feed pipe fixedly installed at the center of the top of the silo cover, a number of annularly distributed feed pipes fixedly installed inside the silo shell, a number of feed ports provided on the feed pipes, a collecting hopper installed at the bottom of the silo shell, a discharge pipe fixedly connected to the bottom of the collecting hopper, and a rotary discharge valve fixedly installed on the discharge pipe.

[0006] Preferably, the top end of the material receiving pipe is fixedly inserted through the top of the outlet cover, and an installation plate is fixedly sleeved on the top of the material receiving pipe, and a sealing plate is fixedly connected to the installation plate by bolts.

[0007] Preferably, a discharge pipe is fixedly connected to the bottom center of the hopper shell, a first flange is fixedly connected to the bottom of the discharge pipe, a second flange is fixedly connected to the bottom of the receiving pipe, a plurality of first connecting pipes are fixedly connected to the top center of the collecting hopper, a third flange is fixedly connected to the top of the first connecting pipes, a plurality of annularly distributed second connecting pipes are fixedly connected to the top of the collecting hopper, a fourth flange is fixedly connected to the top of the second connecting pipes, the first flange and the third flange are fixedly connected by bolts, and the second flange and the fourth flange are fixedly connected by bolts.

[0008] Preferably, the number of the material receiving tubes is the same as the number of the second connecting tubes.

[0009] Preferably, a mating flange is fixedly connected to the top of the feed pipe.

[0010] Preferably, the bottom of the hopper shell is equipped with a first fluidizing nozzle, a second fluidizing nozzle, and a third fluidizing nozzle arranged in a ring from top to bottom.

[0011] Preferably, an annular air supply pipe is installed at the bottom of the hopper shell, and a fluidizing air supply pipe is fixedly connected to the annular air supply pipe. The annular air supply pipe is fixedly connected to the first fluidizing air nozzle above, and the annular air supply pipe is fixedly connected to the second fluidizing air nozzle and the third fluidizing air nozzle through a connecting pipe.

[0012] Preferably, a plurality of fixing blocks are fixedly connected to the outer surface of the hopper shell, and a weighing sensor is installed at the bottom of the fixing blocks.

[0013] Preferably, both the first connecting pipe and the second connecting pipe are equipped with a discharge valve.

[0014] Preferably, a mixing mechanism is installed on the collecting hopper. The mixing mechanism includes a mixing motor, which is fixedly installed on the collecting hopper. A stirring rod is fixedly connected to the output end of the mixing motor. The stirring rod is located inside the collecting hopper, and several support rods are fixedly connected to the outer surface of the stirring rod.

[0015] This invention provides a homogenization silo for powder materials. Compared with the prior art, it has the following advantages: 1. By using multiple sets of annularly distributed material feeding pipes and material feeding ports with different heights and directions inside the silo, the material from different batches and at different heights can be fed synchronously into the silo. Combined with the stirring rod inside the collecting hopper, the material homogenization accuracy is greatly improved.

[0016] 2. The ratio can be increased by adding more feed pipes and feed ports, making it suitable for the homogenization of large batches of materials up to 100 tons per year. It can be matched with large industrial production units with an annual output of tens of thousands to hundreds of thousands of tons, solving the problem of insufficient processing capacity of traditional mechanical mixing equipment.

[0017] 3. Multiple sets of annular fluidizing nozzles at the bottom of the silo, together with annular air delivery pipes and fluidizing air supply pipes, make the material flow in a loose state through airflow fluidization, ensuring that there are no dead corners or residues in the mixing and discharge of the silo, while maintaining the overall flow state throughout the process and avoiding local material stagnation that would affect homogenization.

[0018] 4. Equipped with a weighing sensor, it can accurately monitor the full state of the hopper and control the feeding. All components are connected by flange bolts, which makes disassembly and maintenance convenient and ensures stable production. Attached Figure Description

[0019] Figure 1 This is a front view schematic diagram of the main body structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of the main body of this utility model. Figure 2 ; Figure 3 This is a schematic diagram of the distribution structure of the material inlet in the material inlet tube of this utility model. Figure 4 This is a schematic diagram of the fluidizing nozzle distribution structure of this utility model; Figure 5 This is a schematic diagram of the connection structure between the annular gas transmission pipe and the connecting pipe of this utility model; Figure 6 This is a top view of the main structure of this utility model; Figure 7 This is a schematic diagram of the collecting hopper structure of this utility model; Figure 8 This is a schematic diagram of the hybrid mechanism structure of this utility model.

[0020] In the diagram: 1. Hopper shell; 2. Fixing block; 3. Weighing sensor; 4. Feed pipe; 5. Collecting hopper; 6. Mounting plate; 7. Sealing plate; 8. Connecting flange; 9. Feed pipe; 10. Hopper cover; 11. Fourth flange; 12. Third flange; 13. First connecting pipe; 14. Discharge pipe; 15. Rotary discharge valve; 16. Second connecting pipe; 17. Fluidizing air supply pipe; 18. First flange; 19. Discharge pipe; 20. Annular air supply pipe; 21. Connecting pipe; 22. Second flange; 23. Feed port inside the hopper; 24. First fluidizing air nozzle; 25. Second fluidizing air nozzle; 26. Third fluidizing air nozzle. 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 Figure 1-7This utility model provides a technical solution: a homogenization silo for powder materials, including a silo shell 1, a silo cover 10 fixedly installed on the top of the silo shell 1 by several bolts, a feed pipe 9 fixedly installed at the center of the top of the silo cover 10, a plurality of annularly distributed feed pipes 4 fixedly installed inside the silo shell 1, a plurality of feed ports 23 are provided on the feed pipes 4, a collecting hopper 5 is installed at the bottom of the silo shell 1, a discharge pipe 14 is fixedly connected to the bottom of the collecting hopper 5, and a rotary discharge valve 15 is fixedly installed on the discharge pipe 14.

[0023] The top end of the material taking pipe 4 is fixedly inserted through the top of the outlet cover 10, and the top of the material taking pipe 4 is fixedly sleeved with an installation plate 6. A sealing plate 7 is fixedly connected to the installation plate 6 by bolts. When the material taking pipe 4 is blocked, the sealing plate 7 can be removed, and then a long rod can be inserted into the material taking pipe 4 to reduce or avoid the blockage of the material taking pipe 4.

[0024] A discharge pipe 19 is fixedly connected to the bottom center of the hopper shell 1. A first flange 18 is fixedly connected to the bottom of the discharge pipe 19. A second flange 22 is fixedly connected to the bottom of the receiving pipe 4. A number of first connecting pipes 13 are fixedly connected to the top center of the collecting hopper 5. A third flange 12 is fixedly connected to the top of the first connecting pipes 13. A number of second connecting pipes 16 arranged in a ring are fixedly connected to the top of the collecting hopper 5. A fourth flange 11 is fixedly connected to the top of the second connecting pipes 16. The first flange 18 and the third flange 12 are fixedly connected by bolts. The second flange 22 and the fourth flange 11 are fixedly connected by bolts, which facilitates the disassembly and assembly of the collecting hopper 5.

[0025] The number of material receiving pipes 4 and the number of second connecting pipes 16 are the same.

[0026] The top of the feed pipe 9 is fixedly connected to a docking flange 8, which facilitates docking with upstream equipment.

[0027] The bottom of the hopper shell 1 is equipped with a first fluidizing nozzle, a second fluidizing nozzle, and a third fluidizing nozzle arranged in a ring from top to bottom.

[0028] An annular air supply pipe 20 is installed at the bottom of the silo shell 1. A fluidizing air supply pipe 17 is fixedly connected to the annular air supply pipe 20. The annular air supply pipe 20 is fixedly connected to the first fluidizing air nozzle above. The annular air supply pipe 20 is connected to the first fluidizing air nozzle 24, the second fluidizing air nozzle 25 and the third fluidizing air nozzle 26 through the connecting pipe 21. Under the fluidization effect of the airflow, the material flows out through the lower discharge port. This fluidization device can ensure the full fluidization and flow of the material at the bottom of the silo, so that the mixing and discharge of the entire silo are free of dead corners and residues, and at the same time, it can maintain the overall flow state of the silo throughout the entire process.

[0029] Several fixing blocks 2 are fixedly connected to the outer surface of the silo shell 1. Weighing sensors 3 are installed at the bottom of the fixing blocks 2 for weighing the material inside the silo shell 1.

[0030] Both the first connecting pipe 13 and the second connecting pipe 16 are equipped with discharge valves.

[0031] A mixing mechanism is installed on the collecting hopper 5. The mixing mechanism includes a mixing motor 27, which is fixedly installed on the collecting hopper 5. A stirring rod 28 is fixedly connected to the output end of the mixing motor 27. The stirring rod 28 is located inside the collecting hopper 5, and several support rods 29 are fixedly connected to the outer surface of the stirring rod 28 to facilitate the re-mixing of the collected material.

[0032] Working principle: Powder material enters the silo shell 1 through the feed pipe 9. The docking flange 8 at the top of the feed pipe 9 can be connected to the upstream production equipment to ensure the stability of the feeding process. Several weighing sensors 3 are installed on the outer surface of the silo shell 1 through the fixing block 2. These sensors monitor the total weight of the silo and the material inside in real time. When the weighing data reaches the preset "full" threshold, the upstream feeding system automatically stops feeding to complete the batch collection of materials. After the material is full, open the discharge valves on the first connecting pipe 13 and the second connecting pipe 16. At this time, the material in the silo is conveyed to the collecting hopper 5 through two paths. The annularly distributed feeding pipes 4 inside the silo shell 1 are the core homogenization components. Each feeding pipe 4 has multiple sets of in-silo feeding ports 23, and the feeding ports 23 are distributed differently in height and direction. Powder materials that enter the silo at different times and are at different heights will flow into the feeding pipes 4 from these feeding ports 23 at the same time. Then, through the docking structure between the second flange 22 connected to the bottom of the feeding pipe 4 and the fourth flange 11 of the second connecting pipe 16, the material is transported to the collection hopper 5 to achieve the effect of batch mixing and homogenization. During this process, since the material inlet 23 covers the entire height range of the silo, even if the total height of the material in the silo gradually decreases as the material is discharged, there are always material inlets 23 at different heights that maintain an effective material inlet state, ensuring that materials of different batches and characteristics have been initially mixed and homogenized before entering the collection hopper 5. To maintain the overall flow state throughout the discharge process and prevent local accumulation, the fluidization air supply function is activated. Compressed air enters the annular air supply pipe 20 at the bottom of the silo through the fluidization air supply pipe 17, and then is distributed to three sets of annularly distributed fluidization air nozzles through the connecting pipe 21. After the compressed air is sprayed out from the air nozzles, it generates an airflow fluidization effect on the powder material at the bottom of the silo, making the material loose and flowing. This ensures that there are no dead corners or residues in the mixing and discharge of the silo, and maintains the stable flow state of the material throughout the discharge cycle, avoiding a decrease in homogenization effect due to local material stagnation. In addition to initial homogenization, the material entering the collection hopper 5 will also be stirred by the mixing motor 27 and stirring rod 28 installed on the collection hopper 5 before entering the downstream production stage. The homogenization capacity of this device is scalable. By increasing the number of feed pipes 4 and simultaneously increasing the number of feed ports 23 in the upper chamber of each feed pipe, the equipment can be scaled up to meet the homogenization and mixing needs of large batches of powder materials at the hundred-ton level, and is suitable for large-scale industrial production facilities with an annual output of tens of thousands or hundreds of thousands of tons.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] 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 of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A homogenizing silo for powder materials, comprising a silo shell (1), characterized in that: The top of the silo shell (1) is fixedly installed with a silo cover (10) by several bolts. A feed pipe (9) is fixedly installed at the center of the top of the silo cover (10). Multiple sets of annularly distributed feed pipes (4) are fixedly installed inside the silo shell (1). Multiple sets of silo feed ports (23) are provided on the feed pipes (4). A collecting hopper (5) is installed at the bottom of the silo shell (1). A discharge pipe (14) is fixedly connected to the bottom of the collecting hopper (5). A rotary discharge valve (15) is fixedly installed on the discharge pipe (14).

2. The homogenizing silo for powder materials according to claim 1, characterized in that: The top end of the material taking pipe (4) is fixedly inserted through the top of the outlet cover (10), and the top end of the material taking pipe (4) is fixedly sleeved with an installation plate (6), and a sealing plate (7) is fixedly connected to the installation plate (6) by bolts.

3. A homogenizing silo for powder materials according to claim 2, characterized in that: The bottom center of the hopper shell (1) is fixedly connected to a discharge pipe (19), the bottom of the discharge pipe (19) is fixedly connected to a first flange (18), the bottom of the receiving pipe (4) is fixedly connected to a second flange (22), the top center of the collecting hopper (5) is fixedly connected to several first connecting pipes (13), the top of the first connecting pipes (13) is fixedly connected to a third flange (12), the top of the collecting hopper (5) is fixedly connected to several annularly distributed second connecting pipes (16), the top of the second connecting pipes (16) is fixedly connected to a fourth flange (11), the first flange (18) and the third flange (12) are fixedly connected by bolts, and the second flange (22) and the fourth flange (11) are fixedly connected by bolts.

4. A homogenizing silo for powder materials according to claim 3, characterized in that: The number of the material receiving tube (4) is the same as the number of the second connecting tube (16).

5. A homogenizing silo for powder materials according to claim 4, characterized in that: The top of the feed pipe (9) is fixedly connected to a mating flange (8).

6. A homogenizing silo for powder materials according to claim 5, characterized in that: The bottom of the hopper shell (1) is equipped with a first fluidizing nozzle (24), a second fluidizing nozzle (25) and a third fluidizing nozzle (26) arranged in a ring from top to bottom.

7. A homogenizing silo for powder materials according to claim 6, characterized in that: The bottom of the silo shell (1) is equipped with an annular gas supply pipe (20), and a fluidizing gas supply pipe (17) is fixedly connected to the annular gas supply pipe (20). The annular gas supply pipe (20) is fixedly connected to the first fluidizing gas nozzle above, and the annular gas supply pipe (20) is fixedly connected to the second fluidizing gas nozzle and the third fluidizing gas nozzle through a connecting pipe (21).

8. A homogenizing silo for powder materials according to claim 7, characterized in that: Several fixing blocks (2) are fixedly connected to the outer surface of the silo shell (1), and a weighing sensor (3) is installed at the bottom of the fixing block (2).

9. A homogenizing silo for powder materials according to claim 8, characterized in that: Both the first connecting pipe (13) and the second connecting pipe (16) are equipped with discharge valves.

10. A homogenizing silo for powder materials according to claim 9, characterized in that: A mixing mechanism is installed on the collecting hopper (5). The mixing mechanism includes a mixing motor (27). The mixing motor is fixedly installed on the collecting hopper (5). A stirring rod (28) is fixedly connected to the output end of the mixing motor (27). The stirring rod (28) is located inside the collecting hopper (5), and several support rods (29) are fixedly connected to the outer surface of the stirring rod (28).

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