Raw material particle mixing device

Abstract

The utility model discloses a raw material particle mixing device, and particularly relates to the technical field of fosfomycin tromethamine production mixing, the raw material particle mixing device comprises a mixing cylinder, the top end of the mixing cylinder is fixedly provided with a fixing ring, the surface of the fixing ring is detachably provided with a sealing plate through a plurality of bolts, the sealing plate is provided with a driving motor, and the driving motor is connected with the fixing ring. A stirring shaft is arranged at the output end of the driving motor, a plurality of telescopic stirring blade structures are fixedly arranged on the outer wall of the stirring shaft, each telescopic stirring blade structure comprises an outer pipe, one end of each outer pipe is fixedly mounted on the outer wall of the stirring shaft, an inner rod is slidably arranged in each outer pipe, and a concave block is fixedly arranged at one end of each inner rod. According to the utility model, the mixing range of raw materials in the mixing barrel can be enlarged, so that the mixing effect is improved, the caked raw materials and attachments on the inner wall of the mixing barrel can be beaten, uniform mixing of particles is promoted, residues on the wall of the barrel can be vibrated off after discharging, and the use effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of mixing technology for the production of fosfomycin tromethamine, and more specifically, to a raw material particle mixing device. Background Technology

[0002] Fosfomycin tromethamine granules are an anti-infective drug with highly effective and broad-spectrum antibacterial effects. They are used to treat urinary tract infections. Fosfomycin tromethamine granules are prepared by mixing and heating raw materials such as fosfomycin ditromethamine salt, tromethamine, methanol, and methanesulfonic acid. This process requires mixing the above raw materials.

[0003] A search revealed that Chinese patent CN219051043U discloses a raw material particle mixing device. This structure allows the stirring sub-shaft to move upwards or downwards, while the second stirring rod rotates synchronously during the upward and downward movement of the stirring sub-shaft. This increases the mixing range and area of ​​the fosfomycin tromethamine production ingredients in the mixing tank, further improving the mixing rate between the fosfomycin tromethamine production ingredients, minimizing the problem of uneven mixing in the mixing tank, and ensuring the quality of the fosfomycin tromethamine mixture.

[0004] However, in actual use, the fixed lengths of the first and second stirring rods of this structure result in poor mixing range of the raw materials and difficulty in cleaning the cylinder wall after mixing. The residual raw material not only affects subsequent mixing but also requires additional manual cleaning, increasing production and time costs. In view of this, this utility model proposes a raw material particle mixing device. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a raw material particle mixing device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a raw material particle mixing device, including a mixing cylinder, a fixing ring fixedly installed at the top of the mixing cylinder, a sealing plate detachably installed on the surface of the fixing ring by a number of bolts, a drive motor provided on the sealing plate, a stirring shaft provided at the output end of the drive motor, a number of telescopic stirring blade structures fixedly provided on the outer wall of the stirring shaft, the drive motor fixedly installed at the center of the surface of the sealing plate, and the output end of the drive motor fixedly connected to the stirring shaft, the stirring shaft and the number of telescopic stirring blade structures are all located inside the mixing cylinder.

[0007] As can be seen, this structure drives the stirring shaft to rotate inside the mixing cylinder by a drive motor, which causes several telescopic stirring blades to generate centrifugal force under the rotation of the stirring shaft, thereby achieving continuous extension and expansion, which can improve the mixing range of the raw materials.

[0008] To improve the mixing range of raw materials inside the mixing drum, preferably, the telescopic mixing blade structure includes an outer tube. One end of the outer tube is fixedly installed on the outer wall of the mixing shaft. An inner rod is slidably arranged inside the outer tube. A concave block is fixedly arranged at one end of the inner rod. A movable block is movably arranged inside the concave block. A striking ball is fixedly arranged at one end of the movable block. A pin is provided at the connection between the movable block and the concave block, and they are movably connected by the pin. The striking ball is made of rubber. A limit block is fixedly arranged inside the outer tube at the other end of the inner rod. A spring is provided on one side of the limit block. The limit block is slidably connected inside the outer tube, and the outer diameter of the limit block is larger than the inner diameter of the outer tube. The two ends of the spring are respectively connected to the limit block and the inner wall of the outer tube. The surface of the limit block has several circular grooves in an annular shape. Rolling balls are rolled inside each of the several circular grooves and are rolled against the inner wall of the outer tube.

[0009] To facilitate the feeding and discharging of raw materials, preferably, a feeding pipe is connected to the sealing plate, the feeding pipe is located on one side of the drive motor, a sealing plug is threaded on the surface of the feeding pipe, and a discharge pipe is connected to the bottom of the mixing cylinder, with a discharge valve installed on the discharge pipe.

[0010] In order to achieve uniform mixing inside the mixing cylinder, preferably, the mixing cylinder includes a mixing zone and a collecting zone from top to bottom, and the length of the outer tube and inner rod inside the mixing zone is longer than the length of the outer tube and inner rod inside the collecting zone.

[0011] The technical effects and advantages of this utility model are as follows:

[0012] 1. By setting a telescopic stirring blade structure, the drive motor drives the stirring shaft to rotate. Under the action of centrifugal force, the inner rod slides and extends inside the outer tube, increasing the stirring range of the raw materials inside the mixing drum. The rubber striking ball at the end of the inner rod is movably connected by the shaft pin of the concave block and the movable block. Under centrifugal force, it elastically strikes the raw material clumps and the attached substances on the inner wall of the mixing drum, which not only promotes uniform mixing of particles, but also shakes off the residue on the drum wall after discharge, improving the use effect.

[0013] 2. By sliding the limiting block inside the outer tube, several balls roll against the inner wall of the outer tube, which improves the smoothness of the inner rod sliding inside the outer tube. The sliding of the limiting block inside the outer tube causes the spring to stretch and reset, which not only ensures the sliding of the inner rod inside the outer tube, but also allows the inner rod to reset after stirring stops, making it convenient for the next mixing operation. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the connection structure between the stirring shaft and the drive motor of this utility model.

[0016] Figure 3 This is a three-dimensional schematic diagram of the telescopic stirring blade structure of this utility model.

[0017] Figure 4 This is a schematic diagram of the connection structure between the inner rod and the outer tube of this utility model.

[0018] Figure 5 For the present utility model Figure 4 Enlarged structural diagram at point A in the middle.

[0019] The attached diagram is labeled as follows: 1. Mixing cylinder; 2. Fixing ring; 3. Sealing plate; 4. Drive motor; 5. Stirring shaft; 6. Outer tube; 7. Inner rod; 8. Concave block; 9. Movable block; 10. Striking ball; 11. Limiting block; 12. Spring; 13. Feeding pipe; 14. Sealing plug; 15. Discharge pipe; 16. Discharge valve; 17. Shaft pin; 18. Ball bearing. Detailed Implementation

[0020] 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.

[0021] As attached Figure 1-5 The raw material particle mixing device shown includes a mixing cylinder 1. A fixing ring 2 is fixedly installed at the top of the mixing cylinder 1. A sealing plate 3 is detachably installed on the surface of the fixing ring 2 by a number of bolts. A drive motor 4 is installed on the sealing plate 3. A stirring shaft 5 is installed at the output end of the drive motor 4. A number of telescopic stirring blade structures are fixedly installed on the outer wall of the stirring shaft 5. The drive motor 4 is fixedly installed at the center of the surface of the sealing plate 3, and the output end of the drive motor 4 is fixedly connected to the stirring shaft 5. The stirring shaft 5 and the number of telescopic stirring blade structures are all located inside the mixing cylinder 1.

[0022] Specifically, in this structure, the raw materials used in the production and processing of fosfomycin tromethamine are located inside the mixing cylinder 1. The drive motor 4 drives the stirring shaft 5 to rotate inside the mixing cylinder 1, causing several telescopic stirring blade structures to rotate. The telescopic stirring blade structures generate centrifugal force under the rotation of the stirring shaft 5, thereby continuously extending and retracting, which can improve the stirring range of the raw materials.

[0023] In this embodiment, as shown in the appendix Figure 2 , 3 As shown in Figures 4 and 5, the telescopic stirring blade structure includes an outer tube 6. One end of the outer tube 6 is fixedly installed on the outer wall of the stirring shaft 5. An inner rod 7 is slidably arranged inside the outer tube 6. A concave block 8 is fixedly arranged at one end of the inner rod 7. A movable block 9 is movably arranged inside the concave block 8. A striking ball 10 is fixedly arranged at one end of the movable block 9. A shaft pin 17 is provided at the connection between the movable block 9 and the concave block 8, and the two parts are movably connected by the shaft pin 17. The striking ball 10 is made of rubber. A limiting block 11 is fixedly arranged inside the outer tube 6 at the other end of the inner rod 7. A spring 12 is provided on one side of the limiting block 11. The limiting block 11 is slidably connected inside the outer tube 6, and the outer diameter of the limiting block 11 is larger than the inner diameter of the port of the outer tube 6. The two ends of the spring 12 are respectively connected to the limiting block 11 and the inner wall of the outer tube 6. The surface of the limiting block 11 is provided with several circular grooves in an annular shape. A ball bearing 18 is rolled inside each of the several circular grooves. The ball bearing 18 rolls against the inner wall of the outer tube 6.

[0024] Specifically, in this structure, when the raw materials inside the mixing cylinder 1 are mixed, the stirring shaft 5 is driven to rotate by the drive motor 4. Due to the centrifugal force of rotation, the inner rod 7 will extend to one side inside the outer tube 6, and the limiting block 11 will slide against the inner wall of the outer tube 6 through the ball bearing 18, reducing friction and improving the smoothness of the inner rod 7 extending inside the outer tube 6.

[0025] The limiting block 11 simultaneously stretches the spring 12, which has a certain fatigue resistance. Since the outer diameter of the limiting block 11 is larger than the inner diameter of the port of the outer tube 6, it can prevent the inner rod 7 from detaching from the inside of the outer tube 6. After the inner rod 7 is extended, the cooperation between the extended inner rod 7 and the outer tube 6 can improve the mixing range of the raw materials inside the mixing cylinder 1 and improve the mixing effect. One end of the inner rod 7 is movably installed with a striking ball 10 through the concave block 8 and the movable block 9. Under the action of centrifugal force, the striking ball 10 will overcome the resistance of the fosfomycin tromethamine raw material and avoid affecting the extension of the inner rod 7 inside the outer tube 6. After the drive motor 4 stops rotating, the spring 12 is stretched and reset, so that the inner rod 7 returns to the initial position.

[0026] Meanwhile, after all the raw materials are discharged from the mixing cylinder 1 after being stirred inside, the structure can cause the striking ball 10 to strike the inner wall of the mixing cylinder 1 under the action of centrifugal force, causing the inner wall of the mixing cylinder 1 to vibrate to a certain extent, thereby shaking off the raw material adhering to the inner wall of the mixing cylinder 1 and improving the use effect.

[0027] In this embodiment, as shown in the appendix Figure 1 , 2 As shown, a feeding pipe 13 is connected to the sealing plate 3. The feeding pipe 13 is located on one side of the drive motor 4. A sealing plug 14 is threaded on the surface of the feeding pipe 13. A discharge pipe 15 is connected to the bottom end of the mixing cylinder 1. A discharge valve 16 is installed on the discharge pipe 15.

[0028] Specifically, in this structure, the feeding pipe 13 on the sealing plate 3 can pour the raw material into the mixing cylinder 1 for mixing, and the feeding pipe 13 is sealed by the threaded sealing plug 14 to reduce dust entry. After the mixing is completed, the discharge valve 16 on the discharge pipe 15 is opened, and the mixed raw material is discharged through the discharge pipe 15.

[0029] In this embodiment, as shown in the appendix Figure 1 As shown, the mixing cylinder 1 includes a mixing zone and a collecting zone from top to bottom. The length of the outer tube 6 and inner rod 7 inside the mixing zone is longer than the length of the outer tube 6 and inner rod 7 inside the collecting zone.

[0030] Specifically, in this structure, the mixing cylinder 1 is a frustum-shaped structure with a wider upper section and a narrower lower section, consisting of a mixing zone and a collecting zone. Both the mixing zone and the collecting zone can perform mixing operations on the raw materials. However, the collecting zone can also collect the raw materials for easy discharge through the discharge pipe 15. Since the mixing cylinder 1 is a frustum-shaped structure consisting of a mixing zone and a collecting zone, the length of the outer pipe 6 and inner rod 7 inside the mixing zone is longer than the length of the outer pipe 6 and inner rod 7 inside the collecting zone, which facilitates the mixing and stirring of the raw materials inside the mixing zone and the collecting zone.

[0031] Working principle of this utility model:

[0032] This application provides a raw material particle mixing device, especially for mixing raw materials of fosfomycin tromethamine. In specific use, the raw material is first introduced through the feeding pipe 13 on the sealing plate 3. After feeding is completed, the threaded sealing plug 14 is tightly screwed into the feeding pipe 13 to reduce the intrusion of external dust.

[0033] When mixing begins, the drive motor 4 is powered on and operates at high speed according to the preset speed parameters. Its output end drives the stirring shaft 5 to rotate inside the mixing cylinder 1 with a constant torque. The rotation of the stirring shaft 5 causes the telescopic stirring blade structure to generate centrifugal force. Inside the telescopic stirring blade structure, the inner rod 7 begins to overcome the initial elastic force of the spring 12 and extends outward along the axial direction of the outer tube 6. At the same time, it drives the limiting block 11 to form rolling friction with the inner wall of the outer tube 6 through the ball bearings 18 on its surface, so that the inner rod 7 can slide more smoothly inside the outer tube 6. During the extension process, the inner rod 7 stretches the spring 12. The spring 12, with its good fatigue resistance, stores elastic potential energy while bearing the tension. As the inner rod 7 extends, the length of the stirring blade increases, which can improve the mixing range.

[0034] The striking ball 10, which is movably installed at the end of the inner rod 7 through the concave block 8 and the movable block 9, will swing at a certain angle and force under the action of centrifugal force. Since the striking ball 10 is made of rubber, it has good flexibility and elasticity. During the swinging process, it can effectively overcome the resistance of the fosfomycin tromethamine raw material. It will not only not hinder the extension of the inner rod 7, but also break up the larger clumps of raw material by continuously hitting the raw material, so that the contact between the raw material particles is more sufficient.

[0035] After the discharge valve 16 of the discharge pipe 15 is opened, and all the raw materials in the mixing cylinder 1 are discharged through the discharge pipe 15 after mixing, the striking ball 10 will hit the inner wall of the mixing cylinder 1 under the action of centrifugal force driven briefly by the drive motor 4. This causes the mixing cylinder 1 to vibrate, which can effectively shake off the raw material adhering to the inner wall of the mixing cylinder 1, avoiding the raw material residue from affecting the quality of the next mixing. It also reduces the difficulty and frequency of manual cleaning. After the drive motor 4 stops rotating, the centrifugal force disappears, and the previously stretched spring 12 begins to release the stored elastic potential energy. With its own restoring force, it pushes the limit block 11 and the inner rod 7 to move together to the initial position, and the stirring blade gradually retracts to the initial state, preparing for the next mixing operation.

[0036] It is worth noting that all contents not described in detail in the specification are existing technologies known to those skilled in the art, and all electrical appliances are common devices on the market. Their specific model parameters are not specifically limited, and conventional equipment can be used. Electrical control components not mentioned in this technical solution are not shown in the figure because they are existing technologies, and will not be described here.

[0037] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A raw material particle mixing device, comprising a mixing cylinder (1), characterized in that: A fixing ring (2) is fixedly installed at the top of the mixing cylinder (1). A sealing plate (3) is detachably installed on the surface of the fixing ring (2) by several bolts. A drive motor (4) is provided on the sealing plate (3). A stirring shaft (5) is provided at the output end of the drive motor (4). Several telescopic stirring blade structures are fixedly provided on the outer wall of the stirring shaft (5). The telescopic stirring blade structure includes an outer tube (6), one end of which is fixedly installed on the outer wall of the stirring shaft (5). An inner rod (7) is slidably arranged inside the outer tube (6). A concave block (8) is fixedly arranged at one end of the inner rod (7). A movable block (9) is movably arranged inside the concave block (8). A striking ball (10) is fixedly arranged at one end of the movable block (9). A limiting block (11) is fixedly installed inside the outer tube (6) and at the other end of the inner rod (7), and a spring (12) is provided on one side of the limiting block (11).

2. The raw material particle mixing device according to claim 1, characterized in that: The sealing plate (3) is connected to a feeding pipe (13), which is located on one side of the drive motor (4). A sealing plug (14) is threaded on the surface of the feeding pipe (13). The bottom end of the mixing cylinder (1) is connected to a discharge pipe (15), which is equipped with a discharge valve (16).

3. The raw material particle mixing device according to claim 1, characterized in that: The drive motor (4) is fixedly installed at the center of the surface of the sealing plate (3), and the output end of the drive motor (4) is fixedly connected to the stirring shaft (5). The stirring shaft (5) and several telescopic stirring blade structures are located inside the mixing cylinder (1).

4. The raw material particle mixing device according to claim 1, characterized in that: The mixing cylinder (1) includes a mixing zone and a collecting zone from top to bottom. The length of the outer tube (6) and inner rod (7) inside the mixing zone is longer than the length of the outer tube (6) and inner rod (7) inside the collecting zone.

5. The raw material particle mixing device according to claim 1, characterized in that: The movable block (9) and the concave block (8) are connected by a pivot pin (17), and are movably connected by the pivot pin (17). The striking ball (10) is made of rubber.

6. The raw material particle mixing device according to claim 1, characterized in that: The limiting block (11) is slidably connected inside the outer tube (6), and the outer diameter of the limiting block (11) is larger than the inner diameter of the port of the outer tube (6). The two ends of the spring (12) are respectively connected to the limiting block (11) and the inner wall of the outer tube (6).

7. The raw material particle mixing device according to claim 1, characterized in that: The surface of the limiting block (11) is provided with several circular grooves in an annular shape, and each of the several circular grooves is equipped with rolling balls (18), which are rolled and connected to the inner wall of the outer tube (6).

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