Concentrated solution preparation tank

Abstract

The utility model discloses a concentrated solution preparation tank which comprises a tank body and a stirring device arranged in the tank body, a first stirring piece is arranged at the bottom end of a main shaft of the stirring device, an inner stirring assembly is arranged at the bottom of the main shaft, and the inner stirring assembly comprises a transmission piece and a second stirring piece driven by the transmission piece. Wherein the rotation direction of the first stirring piece is the same as that of the main shaft, and the rotation direction of the second stirring piece is the same as or opposite to that of the main shaft. The utility model relates to the technical field of pharmaceutical equipment, not only improves the stirring speed, but also enables liquid to be mixed more fully and uniformly in the tank body. For some technological processes needing rapid mixing, the production time can be remarkably shortened, and the production cost can be reduced. The annular inflow mode is adopted, the impact force generated when liquid flows into the tank body is small, the stress on the tank body is correspondingly reduced, and the maintenance cost and potential safety hazards of equipment are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of pharmaceutical equipment, in particular to a concentrated solution preparation tank. Background Art

[0002] In the pharmaceutical and other industries, the liquid preparation tank is a key equipment for preparing solutions. Traditional liquid preparation tanks usually adopt a simple structural design, mainly including a tank body and a stirring device. In the process of preparing the solution, the liquid is injected into the tank body through the injection pipe, and then the stirring device is started to mix. However, this traditional liquid injection method has some problems.

[0003] First, the tank is filled with liquid through the filling pipe, which is usually located on one side of the tank. When the liquid is injected, it will generate a large impact force, causing stress concentration on the tank. Over a long period of use, this stress concentration may cause the tank to deform or be damaged, increasing the maintenance cost of the equipment and potential safety hazards.

[0004] Secondly, since the liquid entering through the injection pipe is directly injected into the tank body, the liquid is unevenly distributed in the tank body, resulting in excessive local concentration, which affects subsequent chemical reactions or production processes.

[0005] Furthermore, traditional liquid mixing tanks usually only use one stirring method during the mixing process, such as a single stirring blade or stirring paddle. Although this stirring method can achieve liquid mixing, the mixing efficiency is low and it takes a long time to achieve the desired mixing effect. For some processes that require rapid mixing, this undoubtedly increases production time and cost.

[0006] In summary, the existing liquid dispensing tank has many deficiencies in terms of liquid injection method, stirring efficiency and stress distribution, and a new type of liquid dispensing tank is urgently needed to solve these problems. Utility Model Content

[0007] In view of the deficiencies in the prior art, the utility model provides a concentrated solution preparation tank, which solves the problems of uneven distribution caused by a single injection method of the prior art preparation tank and the single stirring method affecting the stirring efficiency.

[0008] To achieve the above object, the utility model is implemented by the following technical scheme: a concentrated solution preparation tank, comprising a tank body and a stirring device arranged in the tank body, a first stirring member is arranged at the bottom end of the main shaft of the stirring device, an internal stirring assembly is arranged at the bottom of the main shaft, and the internal stirring assembly comprises a transmission member and a second stirring member driven by the transmission member;

[0009] Wherein, the rotation direction of the first stirring member is the same as the rotation direction of the main shaft, and the rotation direction of the second stirring member is the same as or opposite to the rotation direction of the main shaft.

[0010] Preferably, the first stirring member includes a first stirring blade, the second stirring member includes a second stirring blade, the second stirring blade is coaxially arranged with the first stirring blade, and the second stirring blade is arranged inside the first stirring blade in a top view or a front view projection.

[0011] Preferably, the internal stirring assembly further comprises a base, which is rotatably connected to the main shaft via a second rotating member; the second stirring blade is fixed on the base;

[0012] The transmission member comprises:

[0013] A first gear, fixed on the main shaft;

[0014] A second gear, fixed on the base;

[0015] The transmission gear is meshed and connected between the first gear and the second gear.

[0016] Preferably, the transmission gear comprises a first transmission gear set and a second transmission gear set meshing with each other, the first transmission gear set meshing with the first gear, and the second transmission gear set meshing with the second gear.

[0017] Preferably, the transmission gear comprises a first transmission gear set, and the first transmission gear set is meshed with the first gear and the second gear respectively.

[0018] Preferably, the internal stirring assembly further comprises a cover body rotatably connected to the main shaft, the cover body being fixed to the tank body via a crossbeam; the transmission gear is rotatably connected to the cover body; and the base is rotatably connected to the cover body via a first rotating member.

[0019] Preferably, a liquid injection piece is provided on the top of the tank body, and the liquid injection piece includes a configuration ring fixed on the tank body, and a first liquid adding piece and a second liquid adding piece are provided on the configuration ring in an upper and lower manner, the first liquid adding piece is provided with a first liquid outlet, and the second liquid adding piece is provided with a second liquid outlet.

[0020] Preferably, the first liquid adding member and the second liquid adding member are both annular cavities, and the first liquid outlet portion and the second liquid outlet portion are respectively arranged on the annular surfaces of the first liquid adding member and the second liquid adding member.

[0021] Preferably, the second liquid outlet portion is a strip-shaped groove.

[0022] Preferably, the first liquid outlet portion is a strip-shaped slot or a nozzle; an angle α is formed between the nozzle and the first liquid adding member, wherein 30°〈α〈70°.

[0023] Beneficial effects of the utility model: By using a concentrated solution preparation tank provided by the utility model, compared with the prior art, the following technical effects are brought about:

[0024] First, by using the first stirring blade and the second stirring blade in coordination, the second stirring blade rotates in the same direction or in opposite directions as the first stirring blade, thereby achieving efficient stirring and liquid preparation of the liquid. This stirring method not only increases the stirring speed, but also makes the mixing of the liquid in the tank more sufficient and uniform. For some processes that require rapid mixing, the present invention can significantly shorten the production time and reduce the production cost.

[0025] Secondly, the design of the first liquid adding member and the second liquid adding member enables the two liquids to flow into the tank body in the annular direction. This inflow method avoids the concentrated outflow of the liquid, thereby reducing the generation of concentrated stress. At the same time, since the liquid flows into the tank body from multiple directions, it can form a more uniform distribution in the tank body, thereby improving the quality of the solution.

[0026] In addition, since the present invention adopts a circumferential inflow method, the impact force generated by the liquid when it flows into the tank body is small, and the stress on the tank body is also reduced accordingly. This helps to extend the service life of the tank body and reduce the maintenance cost and safety hazards of the equipment.

[0027] Finally, the present invention has good versatility and adaptability. No matter in the chemical, pharmaceutical or food industries, it can be adjusted and optimized according to different process requirements to meet the needs of preparing various solutions. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the three-dimensional structure of the liquid dispensing tank of the utility model;

[0029] Figure 2 This is the front view of the liquid dispensing tank of the utility model;

[0030] Figure 3 This is a schematic diagram of the connection structure between the internal stirring component and the stirring device of the utility model;

[0031] Figure 4 This is a schematic diagram of the three-dimensional structure of the stirring device of the utility model;

[0032] Figure 5 This is a schematic structural diagram of the first embodiment of the transmission gear of the utility model;

[0033] Figure 6 This is a schematic structural diagram of a second embodiment of the transmission gear of the utility model;

[0034] Figure 7 This is a schematic diagram of the three-dimensional structure of the first liquid adding ring of the utility model;

[0035] Figure 8 It is a schematic diagram of the three-dimensional structure of the second liquid adding ring of the utility model.

[0036] Description of reference numerals in the figures

[0037] 1. Stirring device, 2. Configuration ring, 3. Tank body, 4. First liquid adding part, 5. Second liquid adding part, 6. First stirring blade, 7. Internal stirring assembly, 71. Cover body, 72. First gear, 73. First transmission gear set, 74. Second stirring blade, 75. First rotating part, 76. Base, 77. Second gear, 78. Second rotating part, 79. Second transmission gear set, 8. First liquid outlet, 9. Second liquid outlet. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. As long as the effect of the utility model can be exerted, various changes can be made to the implementation scheme.

[0039] By those skilled in the art, the components in this case are connected in sequence. The specific connection and operation sequence should refer to the following working principle. The detailed connection means are well-known technologies in the art. The following mainly introduces the working principle and process.

[0040] Reference Figure 1-Figure 8 A concentrated solution preparation tank according to this embodiment will be described.

[0041] It should be noted that, in the existing liquid dispensing tank, its structure includes a tank body 3 and a stirring device 1 disposed in the tank body 3 , and a liquid adding pipe, a liquid dispensing pipe, an observation window, etc. are disposed on the tank body 3 .

[0042] In this embodiment, based on the prior art, a first stirring member is provided at the bottom end of the main shaft of the stirring device 1, and an internal stirring assembly 7 is provided at the bottom of the main shaft, and the internal stirring assembly 7 includes a transmission member and a second stirring member driven by the transmission member; wherein, when the main shaft rotates, the main shaft drives the first stirring member and the second stirring member to rotate to achieve liquid distribution. It should be noted that the first stirring member is fixedly arranged with the main shaft, so that the rotation direction of the first stirring member is the same as the rotation direction of the main shaft, and the rotation direction of the second stirring member is the same as or opposite to the rotation direction of the main shaft.

[0043] The first stirring member includes a first stirring blade 6, which is an anchor stirring blade. The second stirring member includes a second stirring blade 74, which is a paddle or propeller stirring blade. The second stirring blade 74 is coaxially arranged with the first stirring blade 6, and the second stirring blade 74 is arranged inside the first stirring blade 6 in a top view or a front view projection.

[0044] The inner stirring assembly 7 further comprises a base 76 , which is rotatably connected to the main shaft via a second rotating member 78 , and the second rotating member 78 is a bearing; the second stirring blade 74 is fixed on the base 76 .

[0045] The transmission member includes a first gear 72, a second gear 77 and a transmission gear. The first gear 72 is fixed on the main shaft; the second gear 77 is fixed on the base 76; and the transmission gear is meshed and connected between the first gear 72 and the second gear 77.

[0046] In specific implementation, when the main shaft rotates, it drives the first gear 72 to rotate. The first gear 72 drives the second gear 77 to rotate through the transmission gear. The second gear 77 drives the base 76 and the second stirring blade 74 to rotate, thereby realizing the rotation and stirring work of the second stirring blade 74.

[0047] In order to achieve the purpose that the rotation direction of the second stirring blade 74 is the same as or opposite to the rotation direction of the main shaft, there are two implementation modes for the transmission gear.

[0048] The first embodiment of the transmission gear is to achieve the purpose of different rotation directions of the main shaft and the second stirring blade 74: it includes a first transmission gear set 73 and a second transmission gear set 79 that are meshed with each other. The first transmission gear set 73 includes a first input gear and a first output gear, and the first input gear and the first output gear are connected by a first shaft rod. The second transmission gear set 79 includes a second input gear and a second output gear, and the second input gear and the second output gear are connected by a second shaft rod. When specifically connected, the first input gear of the first transmission gear set 73 is meshed with the first gear 72, the first output gear is meshed with the second input gear, and the second output gear of the second transmission gear set 79 is meshed with the second gear 77. With the above-mentioned setting method, the main shaft drives the first gear 72 to rotate in the positive direction, the first gear 72 drives the first transmission gear set 73 to rotate in the reverse direction, the first transmission gear set 73 drives the second transmission gear set 79 to rotate in the positive direction, the second transmission gear set 79 drives the second gear 77 to rotate, and when the second gear 77 rotates, it drives the base 76 and the second stirring blade 74 to rotate, thereby achieving the effect of the second stirring blade 74 rotating in the opposite direction to the main shaft.

[0049] The second embodiment of the transmission gear is to achieve the purpose of the main shaft and the second stirring blade 74 rotating in the same direction: the transmission gear includes a first transmission gear set 73, the first transmission gear set 73 includes a first input gear and a first output gear, and the first input gear and the first output gear are connected by a first shaft. The first input gear of the first transmission gear set 73 is meshed with the first gear 72; the first output gear is meshed with the second gear 77.

[0050] The internal stirring assembly 7 also includes a cover body 71 rotatably connected to the main shaft, and the cover body 71 is fixed to the tank body 3 through a crossbeam; a transmission gear is rotatably connected to the cover body 71; a base 76 is rotatably connected to the cover body 71 through a first rotating member 75; the first rotating member 75 is a bearing; when the base 76 rotates, it is rotatably connected to the cover body 71 through the first rotating member 75.

[0051] In this embodiment, a liquid injection part is provided on the top of the tank body 3, and the liquid injection part includes a configuration ring 2 fixed on the tank body 3, and the configuration ring 2 is fixed between the tank body 3 and the upper head of the tank body 3. The configuration ring 2 is provided with a first liquid adding part 4 and a second liquid adding part 5 in an upper and lower manner, and the first liquid adding part 4 and the second liquid adding part 5 are connected with a liquid injection pipeline. The first liquid adding part 4 is provided with a first liquid outlet 8, and the second liquid adding part 5 is provided with a second liquid outlet 9; wherein, the liquid flowing out of the first liquid outlet 8 can act on the liquid flowing out of the second liquid outlet 9, so that the two liquids can be combined and fall into the tank body 3 when flowing out.

[0052] The first liquid adding member 4 and the second liquid adding member 5 are both annular cavities, and the first liquid outlet 8 and the second liquid outlet 9 are respectively arranged on the annular surfaces of the first liquid adding member 4 and the second liquid adding member 5. With this embodiment, the liquid can flow out in an annular direction in the tank body 3, so that the liquid outflow position is not concentrated, the concentrated stress is reduced, and the liquid flows into the tank body 3 with better uniformity.

[0053] Specifically, the second liquid outlet portion 9 is a strip groove, and the opening height of the strip groove of the second liquid outlet portion 9 is 0.5cm-1cm. The first liquid outlet portion 8 is a strip groove or a nozzle; the opening height of the strip groove of the first liquid outlet portion 8 is 0.5cm-1cm. An angle α is formed between the nozzle and the first liquid adding part 4, wherein 30°〈α〈70°. The nozzle is arranged on the inner wall surface of the first liquid adding part 4. When the angle between the nozzle and the first liquid adding part 4 is designed to be 30°~70°, the liquid sprayed by the nozzle can act on the liquid flowing out of the second liquid outlet portion 9.

[0054] Working principle: two configuration liquids are respectively injected into the first liquid adding part 4 and the second liquid adding part 5 through the liquid injection pipe, and the two liquids flow into the tank body 3 in a circular direction. The stirring device 1 drives the main shaft to rotate, and the main shaft directly drives the first stirring blade 6 to rotate and stir; at the same time, the main shaft drives the first gear 72 to rotate, and the first gear 72 drives the second gear 77 to rotate through the transmission gear, and the second gear 77 drives the base 76 and the second stirring blade 74 to rotate, so as to realize the rotation stirring work of the second stirring blade 74.

[0055] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A concentrated solution preparation tank, comprising a tank body (3) and a stirring device (1) arranged in the tank body (3), characterized in that: The stirring device (1) is provided with a first stirring member at the bottom end of the main shaft, and an internal stirring component (7) is provided at the bottom of the main shaft, wherein the internal stirring component (7) comprises a transmission member and a second stirring member driven by the transmission member; Wherein, the rotation direction of the first stirring member is the same as the rotation direction of the main shaft, and the rotation direction of the second stirring member is the same as or opposite to the rotation direction of the main shaft.

2. A concentrated solution preparation tank according to claim 1, characterized in that: The first stirring member comprises a first stirring blade (6), and the second stirring member comprises a second stirring blade (74). The second stirring blade (74) is coaxially arranged with the first stirring blade (6), and the second stirring blade (74) is arranged on the inner side of the first stirring blade (6) in a top view or a front view projection.

3. A concentrated solution preparation tank according to claim 1 or 2, characterized in that: The internal stirring assembly (7) further comprises a base (76) which is rotatably connected to the main shaft via a second rotating member (78); The second stirring blade (74) is fixed on the base (76); The transmission member comprises: A first gear (72) fixed on the main shaft; A second gear (77) fixed on the base (76); The transmission gear is meshedly connected between the first gear (72) and the second gear (77).

4. A concentrated solution preparation tank according to claim 3, characterized in that: The transmission gear comprises a first transmission gear set (73) and a second transmission gear set (79) meshing with each other, wherein the first transmission gear set (73) meshes with the first gear (72), and the second transmission gear set (79) meshes with the second gear (77).

5. A concentrated solution preparation tank according to claim 3, characterized in that: The transmission gear comprises a first transmission gear set (73), and the first transmission gear set (73) is meshed with the first gear (72) and the second gear (77) respectively.

6. A concentrated solution preparation tank according to claim 3, characterized in that: The internal stirring assembly (7) further comprises a cover body (71) rotatably connected to the main shaft, wherein the cover body (71) is fixed to the tank body (3) via a crossbeam; the transmission gear is rotatably connected to the cover body (71); and the base (76) is rotatably connected to the cover body (71) via a first rotating member (75).

7. A concentrated solution preparation tank according to claim 1, characterized in that: A liquid injection piece is arranged on the top of the tank body (3), and the liquid injection piece comprises a configuration ring (2) fixed on the tank body (3), and a first liquid adding piece (4) and a second liquid adding piece (5) are arranged on the configuration ring (2) in an upper and lower manner, and the first liquid adding piece (4) is provided with a first liquid outlet (8), and the second liquid adding piece (5) is provided with a second liquid outlet (9).

8. A concentrated solution preparation tank according to claim 7, characterized in that: The first liquid adding member (4) and the second liquid adding member (5) are both annular cavities, and the first liquid outlet portion (8) and the second liquid outlet portion (9) are respectively arranged on the annular surfaces of the first liquid adding member (4) and the second liquid adding member (5).

9. A concentrated solution preparation tank according to claim 7 or 8, characterized in that: The second liquid outlet portion (9) is a strip-shaped groove.

10. A concentrated solution preparation tank according to claim 7 or 8, characterized in that: The first liquid outlet (8) is a strip-shaped slot or a nozzle; An included angle α is formed between the spray head and the first liquid adding member (4), wherein 30°<α<70°.

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