Powder storage tank and storage device

Abstract

The utility model provides a powder storage tank and a powder storage device, and the powder storage tank comprises a tank body which is composed of a cylindrical body and a conical body; the cylindrical body is provided with a first chamber, the conical body is provided with a second chamber, the bottom of the cylindrical body is connected with the conical body, and the first chamber is communicated with the second chamber to form a closed chamber for loading powder; a feeding pipe and a discharging pipe are arranged on the side wall of the cylindrical body, and valves are arranged on the feeding pipe and the discharging pipe; the stirring assembly is connected with the cylindrical body, the stirring assembly extends to the closed cavity, and a gap is reserved between the end of the stirring assembly and the bottom wall of the conical body; the stirring assembly is used for stirring the powder in the closed cavity, so that the caked powder falls on the bottom wall of the cone-shaped body. The powder in the closed cavity is stirred through the stirring assembly, the powder flows to the bottom of the cone-shaped body under the action of gravity, due to the weight of caked powder and the weight of powder particles, the caked powder can rapidly fall to the bottom of the cone-shaped body under the influence of the gravity, and layering of the caked powder and the powder is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a powder storage device, in particular to a powder storage tank and a storage device. BACKGROUND

[0002] In the long-term storage process of powder materials, due to the interaction between particles (such as static electricity, humidity and temperature, etc.), it is easy to appear the phenomenon of caking, which not only affects the quality of the powder, but also may lead to difficult discharge; although preventive measures can be taken to prevent the occurrence of caking phenomenon, it is almost impossible to completely avoid the generation of static electricity, humidity and temperature fluctuations. SUMMARY

[0003] The utility model discloses a powder storage tank and a storage device, and aims to solve the technical problem of caking powder blocking the outlet of the storage tank, leading to difficult discharge.

[0004] The utility model discloses the following technical scheme realizes:

[0005] The first aspect provides a powder storage tank, comprising:

[0006] The tank body is composed of a cylindrical body and a conical body; the cylindrical body is provided with a first chamber, and the conical body is provided with a second chamber; the bottom of the cylindrical body is connected with the conical body, the first chamber and the second chamber are communicated, and a closed chamber for loading powder is formed;

[0007] The side wall of the cylindrical body is provided with a feeding pipe and a discharging pipe, and valves are arranged on the feeding pipe and the discharging pipe;

[0008] The stirring assembly is connected with the cylindrical body, and extends into the closed chamber; the end of the stirring assembly is spaced apart from the bottom wall of the conical body; the stirring assembly is used for stirring the powder in the closed chamber, so that the caking powder falls on the bottom wall of the conical body.

[0009] The aforementioned tank body is composed of cylindrical and conical sections. The conical shape optimizes the flowability of the powder. The powder within the sealed chamber is stirred by the agitator. Under gravity, the powder flows towards the bottom of the conical section. Due to the weight of the agglomerated powder and the individual powder particles, gravity causes the agglomerated powder to settle more quickly at the bottom of the conical section, achieving stratification between the agglomerated powder and the individual powder particles. During the stirring process, the agitator also effectively breaks down the agglomerated powder, redispersing it into fine particles, thereby improving the flowability and dischargeability of the powder. This is highly effective in preventing clogging at the outlet and ensuring smooth discharge. The gap between the agitator and the bottom wall of the conical section prevents direct contact between the agitator and the agglomerated powder at the bottom of the conical section. If the agitator were to directly contact the agglomerated powder at the bottom of the conical section, it would disrupt the stratification structure, causing the agglomerated powder to re-mix into the individual powder particles. During discharge, the individual powder particles would carry the agglomerated powder towards the discharge pipe, potentially causing blockage. A feed pipe and a discharge pipe are installed on the side wall of the cylindrical body, and a valve is provided to facilitate the control of the powder's entry and exit. The bottom of the cone gradually narrows, causing the agglomerated powder to accumulate inside the cone. The gradually narrowing cone restricts the flow of the agglomerated powder, preventing it from flowing into the discharge pipe during discharge.

[0010] Furthermore, the aforementioned stirring assembly includes a drive motor, a stirring shaft, and a stirring section. The drive motor is located at the top of the cylindrical body, and one end of the stirring shaft extends through the top of the cylindrical body and is connected to the rotating shaft of the drive motor.

[0011] The aforementioned stirring section includes a horizontal main rod and several vertical support rods. The several vertical support rods are equally spaced on the horizontal main rod and are perpendicular to the horizontal main rod. The stirring shaft is connected to the center of the horizontal main rod.

[0012] The vertical support rods on the aforementioned stirring section are used to stir the powder, while the horizontal main rod connects to the vertical support rods and drives them to rotate around the stirring shaft. Since the vertical support rods are evenly spaced on the horizontal main rod and perpendicular to it, this layout ensures a uniform distribution of stirring force on the same plane, avoiding localized over- or under-stirring. The stirring shaft is connected to the center of the horizontal main rod, allowing the stirring section to maintain balance during rotation. During rotation, the stirring section also generates certain shear and impact forces, which help refine agglomerated powder. By periodically or as needed activating the stirring assembly, the powder can be kept loose and separated into powder particles and agglomerated powder, reducing the risk of agglomerated powder clogging the discharge pipe.

[0013] Furthermore, a sealing gasket is provided between the aforementioned conical body and cylindrical body.

[0014] The sealing gasket fills the small gap between the conical body and the cylindrical body, preventing powder from leaking or accumulating in these gaps, not only maintaining the cleanliness of the inside of the storage tank and the purity of the powder, but also avoiding equipment failure or environmental pollution that may be caused by powder leakage; if the leaked powder or moisture penetrates into these gaps, it may combine with the residual powder on the tank wall to form a lump. The use of the sealing gasket reduces the occurrence of this situation, thereby reducing the risk of lump formation.

[0015] Further, the outer side wall of the cylindrical body is provided with a connecting rod, one end of the connecting rod extends out of the bottom of the cylindrical body, and a connecting block is arranged on the connecting rod extending out of the bottom of the cylindrical body, and a first through hole and a groove are arranged on the side of the connecting block close to the tank body;

[0016] The outer side wall of the conical body is provided with a protrusion, and a second through hole is arranged on the protrusion;

[0017] After the protrusion is inserted into the groove, the bolt is sequentially threaded through the first through hole and the second through hole to connect the protrusion and the connecting block.

[0018] The connection between the cylindrical body and the conical body is realized through the close cooperation of the connecting rod, the connecting block, the protrusion and the bolt, which enhances the assembly convenience of the cylindrical body and the conical body, and the cylindrical body can be easily disassembled when it is necessary to clean the lumped powder in the tank body; although the direct sealing is mainly provided by the sealing gasket, this connection structure also provides stable support for the sealing gasket.

[0019] Further, the connecting rod and the protrusion are provided with a plurality of connecting rods and protrusions, which are uniformly arranged on the circumferential surface of the tank body.

[0020] The uniform arrangement of the plurality of connecting rods and protrusions makes the connection between the cylindrical body and the conical body more stable, and this multi-point support structure can more effectively resist the stress and deformation generated during storage and stirring of the storage tank, thereby reducing the powder retention caused by deformation of the tank body and the lumping phenomenon caused by poor sealing; the uniformly arranged connecting rods and protrusions ensure that the stress can be evenly distributed on the entire circumferential surface when the storage tank is under load, which helps to avoid local stress concentration and reduce damage or deformation of the storage tank caused by stress concentration; on the other hand, it helps to ensure that the sealing gasket can be tightly fitted between the cylindrical body and the conical body, reducing the risk of powder leakage and moisture intrusion.

[0021] Further, the outer side wall of the cylindrical body is provided with a reinforcing strut, and the reinforcing strut is uniformly arranged on the circumferential surface of the cylindrical body.

[0022] The reinforced support rods serve as additional support structures to improve the load-bearing capacity of the cylindrical body; during powder storage and stirring, the storage tank will be subjected to pressure from the powder and vibration from the stirring assembly, and the reinforced support rods can effectively disperse and resist these forces, reducing the risk of deformation and damage to the storage tank.

[0023] Further, the feed pipe is arranged near the top of the cylindrical body, and the discharge pipe is arranged near the bottom of the cylindrical body.

[0024] The feed pipe is arranged near the top of the cylindrical body, so that the newly added powder can naturally fall and fill the upper part of the tank body; this temporary "first-in first-out" filling method helps to maintain the freshness and flowability of the powder and reduce the phenomenon of powder caking caused by long-term storage; the discharge pipe is arranged near the bottom of the cylindrical body, so that the powder can flow smoothly.

[0025] The second aspect provides a storage device comprising the above-mentioned storage tank.

[0026] The above-mentioned storage tank comprises at least three, namely a first storage tank, a second storage tank and a third storage tank.

[0027] The discharge pipes of the first and second storage tanks are in communication with the feed pipe of the third storage tank.

[0028] By combining multiple storage tanks and skillfully connecting their discharge pipes and feed pipes, an efficient and flexible material storage and conveying system is formed; not only can the use state of each storage tank be flexibly adjusted according to actual needs, but also the type of material can be adjusted in time according to production needs, ensuring the continuity and stability of the production line; for example, a single type of powder can be stored, or a type of powder mixed from multiple types of powder can be stored. The design of the storage device has strong scalability. When the production demand increases, more storage tanks can be easily added and connected through pipelines to form a larger material storage and conveying system. This scalability enables the storage device to adapt to production lines of different scales and production demands.

[0029] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0030] The above-mentioned tank body is composed of a cylindrical body and a conical body, and the flowability of the powder is optimized by the shape of the conical body. The powder in the closed chamber is stirred by the stirring assembly, and the powder flows to the bottom of the conical body under the action of gravity. Due to the weight of the caked powder and the powder particles, the caked powder can fall faster to the bottom of the conical body under the influence of gravity, so as to realize the layering of the caked powder and the powder particles. The stirring assembly can also effectively break the caked powder participating in stirring during stirring, so as to make the caked powder re-disperse into fine particles, thereby improving the flowability and dischargeability of the powder, which has a significant effect on preventing the powder from being blocked at the outlet and ensuring smooth discharge. The interval between the stirring assembly and the bottom wall of the conical body avoids the direct contact between the stirring assembly and the caked powder at the bottom of the conical body. If the stirring assembly directly contacts the caked powder at the bottom of the conical body, the layering structure will be disturbed, and the caked powder after layering will be mixed into the powder particles again. When discharging, the powder particles carry the caked powder to flow to the discharge pipe, thereby causing blockage. The inlet pipe and the discharge pipe are arranged on the side wall of the cylindrical body, and a valve is arranged. The valve is convenient for controlling the inlet and outlet of the powder. The bottom of the conical body is gradually narrowed, so that the caked powder is accumulated in the conical body. The gradually narrowed conical body limits the flow of the caked powder, so as to avoid the caked powder flowing to the discharge pipe during discharging. BRIEF DESCRIPTION OF DRAWINGS

[0031] In order to more clearly illustrate the technical scheme in the example embodiments of the present application, the drawings needed in the embodiments will be briefly introduced as follows. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor. In the drawings:

[0032] Figure 1 It is a schematic diagram of the overall structure of the storage tank.

[0033] Figure 2 It is a schematic diagram of the structure of the stirring assembly.

[0034] Figure 3 It is Figure 1 It is a local enlarged view of A.

[0035] Figure 4 It is a schematic diagram of the connection structure of the cylindrical body and the conical body.

[0036] Figure 5 It is a connection schematic diagram of the storage device.

[0037] Figure 6 It is a schematic diagram of the structure of the sealing gasket.

[0038] Markings in the drawings and corresponding names of parts:

[0039] 10, tank body; 11, cylindrical body; 12, conical body; 13, feeding pipe; 14, discharging pipe; 15, valve; 16, reinforcing strut; 17, sealing gasket; 21, driving motor; 22, stirring shaft; 23, transverse main rod; 24, vertical strut; 31, connecting rod; 32, connecting block; 33, protrusion; 34, bolt; 35, groove; 36, first through hole; 37, second through hole; DETAILED DESCRIPTION

[0040] In order to make the purpose, technical scheme and advantages of the present application clearer, the present application will be further described in detail below with reference to the embodiments and drawings. The illustrative embodiments of the present application and the description thereof are only used to explain the present application and do not limit the present application.

[0041] Embodiment 1: in combination Figure 1 The present embodiment 1 provides a powder storage tank, comprising:

[0042] The tank body 10 is composed of a cylindrical body 11 and a conical body 12. The cylindrical body 11 is provided with a first chamber, and the conical body 12 is provided with a second chamber. The bottom of the cylindrical body 11 is connected with the conical body 12, the first chamber and the second chamber are communicated, and a closed chamber for loading powder is formed.

[0043] The side wall of the cylindrical body 11 is provided with a feeding pipe 13 and a discharging pipe 14. The feeding pipe 13 and the discharging pipe 14 are provided with a valve 15. The valve 15 can adopt an existing flow valve, such as a start-on-off valve and an electric flow control valve.

[0044] The stirring assembly is connected with the cylindrical body 11. The stirring assembly extends into the closed chamber. The end of the stirring assembly is spaced from the bottom wall of the conical body 12. The gap forms a caked powder storage area. The stirring assembly is used to stir the powder in the closed chamber, so that the caked powder falls on the bottom wall of the conical body 12.

[0045] The tank body 10 is composed of a cylindrical body 11 and a conical body 12, and the flowability of the powder is optimized by the shape of the conical body 12. The powder in the closed chamber is stirred by the stirring assembly, and the powder flows to the bottom of the conical body 12 under the action of gravity. Due to the weight of the caked powder and the powder particles, the caked powder can fall faster to the bottom of the conical body 12 under the influence of gravity, realizing the stratification of the caked powder and the powder particles. The stirring assembly can also effectively break the caked powder participating in stirring during stirring, so that it is dispersed into fine particles again, thereby improving the flowability and dischargeability of the powder, which has a significant effect on preventing the powder from blocking at the outlet and ensuring smooth discharge. The spacing between the stirring assembly and the bottom wall of the conical body 12 avoids direct contact between the stirring assembly and the caked powder at the bottom of the conical body 12. If the stirring assembly directly contacts the caked powder at the bottom of the conical body 12, it will disturb the stratification structure, causing the stratified caked powder to mix into the powder particles again. When discharging, the powder particles carry the caked powder to the discharge pipe 14, thereby causing blockage. The inlet pipe 13 and the discharge pipe 14 are arranged on the side wall of the cylindrical body 11, and a valve 15 is provided. The valve 15 facilitates the control of the inlet and outlet of the powder. The bottom of the conical body 12 gradually narrows, so that the caked powder accumulates in the conical body 12. The gradually narrowing conical body 12 limits the flow of the caked powder, avoiding the flow of the caked powder to the discharge pipe 14 during discharge.

[0046] In a specific embodiment, the inlet pipe 13 is arranged near the top of the cylindrical body 11, and the discharge pipe 14 is arranged near the bottom of the cylindrical body 11.

[0047] The inlet pipe 13 is arranged near the top of the cylindrical body 11, so that the newly added powder can naturally fall and fill the upper part of the tank body. This temporary "first-in first-out" filling method helps to maintain the freshness and flowability of the powder and reduce the caking phenomenon of the powder caused by long-term storage. The discharge pipe 14 is arranged near the bottom of the cylindrical body 11, so that the powder can flow out smoothly.

[0048] In embodiment 2, the stirring assembly of embodiment 1 is combined with Figure 2 The stirring assembly includes a driving motor 21 (which can be a stepping motor), a stirring shaft 22, and a stirring part. The driving motor 21 is arranged at the top of the cylindrical body 11, and one end of the stirring shaft 22 penetrates the top of the cylindrical body 11 and is connected to the rotating shaft of the driving motor 21.

[0049] The stirring part includes a horizontal main rod 23 and a plurality of vertical branch rods 24. The vertical branch rods 24 are arranged at equal intervals on the horizontal main rod 23, and the vertical branch rods 24 are perpendicular to the horizontal main rod 23. The stirring shaft 22 is connected to the center of the horizontal main rod 23.

[0050] The vertical support rods 24 on the stirring part are used for stirring the powder, the horizontal main rods 23 are used for connecting the vertical support rods 24 and driving the vertical support rods 24 to rotate around the stirring shaft 22. Since the vertical support rods 24 are arranged at equal intervals on the horizontal main rods 23 and are perpendicular to the horizontal main rods 23, this arrangement ensures uniform distribution of stirring force in the same plane and avoids the situation of excessive or insufficient local stirring. The stirring shaft 22 is connected to the center of the horizontal main rods 23, so that the stirring part can keep balance when rotating. The stirring part can also generate certain shear force and impact force during rotation, which helps to refine the caked powder. By starting the stirring assembly regularly or as needed, the loose state of the powder can be maintained and the powder particles and caked powder can be layered, reducing the risk of caked powder blocking the discharge pipe 14.

[0051] Example 3: on the basis of any of the above examples, in combination with Figure 1 and Figure 6 The sealing gasket 17 is arranged between the conical body 12 and the cylindrical body 11 and can be made of rubber.

[0052] The sealing gasket 17 fills the small gap between the conical body 12 and the cylindrical body 11, preventing the powder from leaking or accumulating in these gaps. Not only does it maintain the cleanliness of the inside of the storage tank and the purity of the powder, but it also avoids equipment failure or environmental pollution that may be caused by powder leakage. If the leaked powder or moisture penetrates into these gaps, it may combine with the residual powder on the tank wall to form a caked mass. The use of the sealing gasket 17 reduces the occurrence of this situation, thereby reducing the risk of caked powder formation.

[0053] Example 4: on the basis of any of the above examples, in combination with Figure 1 , Figure 3 and Figure 4 The outer side wall of the cylindrical body 11 is provided with a connecting rod 31, one end of the connecting rod 31 extends out of the bottom of the cylindrical body 11, and the connecting rod 31 extending out of the bottom of the cylindrical body 11 is provided with a connecting block 32. The connecting block 32 is provided with a first through hole 36 and a groove 35 near one side of the tank body 10.

[0054] The outer side wall of the conical body 12 is provided with a protrusion 33, and the protrusion 33 is provided with a second through hole 37.

[0055] After the protrusion 33 is inserted into the groove 35, the bolt 34 is sequentially threaded through the first through hole 36 and the second through hole 37 to connect the protrusion 33 and the connecting block 32.

[0056] The cylindrical body 11 and the conical body 12 are connected by a tight fit of connecting rod 31, connecting block 32, protrusion 33 and bolt 34, which enhances the ease of assembly of the cylindrical body 11 and the conical body 12. When it is necessary to clean the clumps of powder inside the tank body 10, the cylindrical body 11 can be easily disassembled. Although the direct sealing is mainly provided by the sealing gasket 17, this connection structure also provides a solid support for the sealing gasket 17.

[0057] In a specific embodiment, multiple connecting rods 31 and protrusions 33 are provided and evenly distributed on the circumferential surface of the tank body 10.

[0058] The evenly distributed arrangement of multiple connecting rods 31 and protrusions 33 makes the connection between the cylindrical body 11 and the conical body 12 more stable. This multi-point support structure can more effectively resist the stress and deformation generated by the storage tank during storage and stirring, thereby reducing powder retention caused by tank deformation and agglomeration caused by poor sealing. The evenly distributed connecting rods 31 and protrusions 33 ensure that the force on the storage tank can be evenly distributed on the entire circumference when it is under load. On the one hand, this helps to avoid local stress concentration and reduce damage or deformation of the storage tank caused by stress concentration. On the other hand, it helps to ensure that the sealing gasket 17 can fit tightly between the cylindrical body 11 and the conical body 12, reducing the risk of powder leakage and moisture intrusion.

[0059] Example 5: Based on any of the above examples, combined with Figure 1 The outer wall of the aforementioned column 11 is provided with reinforcing support rods 16, which are evenly distributed on the circumferential surface of the column 11.

[0060] The aforementioned reinforcing strut 16 serves as an additional support structure, enhancing the load-bearing capacity of the column 11. During powder storage and mixing, the storage tank is subjected to pressure from the powder and vibration from the mixing components. The reinforcing strut 16 effectively disperses and resists these forces, reducing the risk of deformation and damage to the storage tank.

[0061] Example 6: Combination Figure 5 This embodiment 6 provides a storage device, including the storage tank described above;

[0062] The aforementioned storage tanks include at least three, namely a first storage tank, a second storage tank, and a third storage tank;

[0063] The discharge pipes 14 of the first and second storage tanks are connected to the inlet pipe 13 of the third storage tank.

[0064] By combining multiple storage tanks and cleverly connecting their discharge pipes 14 and inlet pipes 13, a highly efficient and flexible material storage and conveying system is formed. This system not only allows for flexible adjustment of the usage status of each storage tank according to actual needs, but also enables timely adjustment of material types based on production requirements, ensuring the continuity and stability of the production line. For example, it can store a single type of powder or a mixture of multiple powders. When a storage tank needs to be emptied quickly, its discharge pipe 14 can be connected to the inlet pipe 13 of a third storage tank or another idle storage tank for rapid transfer. Furthermore, different storage tanks can be used for different storage and conveying tasks based on the type, batch, or processing requirements of the material. The design of this storage device is highly scalable; as production demand increases, more storage tanks can be easily added and connected via pipelines to form a larger material storage and conveying system. This scalability allows the storage device to adapt to production lines of different sizes and production needs.

[0065] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A powder storage tank, characterized in that, include: The tank body (10) is composed of a cylindrical body (11) and a conical body (12); the cylindrical body (11) is provided with a first chamber, and the conical body (12) is provided with a second chamber. The bottom of the cylindrical body (11) is connected to the conical body (12), and the first chamber and the second chamber are connected to form a closed chamber for loading powder. The side wall of the cylindrical body (11) is provided with a feed pipe (13) and a discharge pipe (14), and valves (15) are provided on the feed pipe (13) and the discharge pipe (14); The stirring assembly is connected to the cylindrical body (11) and extends into the sealed chamber. The end of the stirring assembly is spaced from the bottom wall of the conical body (12). The stirring assembly is used to stir the powder in the sealed chamber so that the agglomerated powder falls onto the bottom wall of the conical body (12).

2. The powder storage tank according to claim 1, characterized in that, The stirring assembly includes a drive motor (21), a stirring shaft (22), and a stirring part. The drive motor (21) is located on the top of the cylindrical body (11), and one end of the stirring shaft (22) extends out of the top of the cylindrical body (11) and is connected to the rotating shaft of the drive motor (21). The stirring section includes a horizontal main rod (23) and several vertical support rods (24). The several vertical support rods (24) are equally spaced on the horizontal main rod (23) and are perpendicular to the horizontal main rod (23). The stirring shaft (22) is connected to the center of the horizontal main rod (23).

3. A powder storage tank according to claim 1, characterized in that, A sealing gasket (17) is provided between the cone (12) and the cylindrical body (11).

4. A powder storage tank according to claim 3, characterized in that, A connecting rod (31) is provided on the outer wall of the cylindrical body (11). One end of the connecting rod (31) extends out of the bottom of the cylindrical body (11). A connecting block (32) is provided on the connecting rod (31) extending out of the bottom of the cylindrical body (11). A first through hole (36) and a groove (35) are provided on the side of the connecting block (32) near the tank body (10). The outer wall of the cone (12) is provided with a protrusion (33), and the protrusion (33) is provided with a second through hole (37); After the protrusion (33) is inserted into the groove (35), it is connected to the connecting block (32) by passing through the first through hole (36) and the second through hole (37) in sequence by bolts (34).

5. A powder storage tank according to claim 4, characterized in that, Multiple connecting rods (31) and protrusions (33) are provided and are evenly distributed on the circumferential surface of the tank body (10).

6. A powder storage tank according to claim 1, characterized in that, The outer wall of the column (11) is provided with a reinforcing support rod (16), which is evenly distributed on the circumferential surface of the column (11).

7. A powder storage tank according to claim 1, characterized in that, The feed pipe (13) is located near the top of the cylindrical body (11); the discharge pipe (14) is located near the bottom of the cylindrical body (11).

8. A material storage device, characterized in that, Includes the storage tank as described in any one of claims 1 to 7; The storage tanks include at least three, namely a first storage tank, a second storage tank, and a third storage tank; The discharge pipes (14) of the first and second storage tanks are connected to the inlet pipe (13) of the third storage tank.

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