Automatic medicament adding device for heterogeneous solid-liquid reaction

Abstract

The utility model belongs to the technical field of reaction kettles, and discloses an automatic medicament adding device for heterogeneous solid-liquid reaction, which comprises a trolley, a lifting component is mounted on the trolley, the lifting component is connected with a lifting platform, a spiral feeder is mounted on the lifting platform, and the spiral feeder is connected with the lifting platform. The top of the spiral feeder is connected with a medicament raw material hopper through a discharging pipe, the spiral feeder comprises a barrel, a middle shaft rod is arranged in the barrel, one end of the middle shaft rod penetrates through the barrel to be connected with a first-stage motor, a spiral blade is arranged on the middle shaft rod in the barrel, and a discharging port is formed in the bottom of the end, away from the first-stage motor, of the barrel. The medicament powder falls into the spiral feeder under the action of gravity, and is continuously and uniformly added into the reaction kettle through the spiral blade, so that excessive dependence on the labor intensity of workers is reduced, the amount of generated waste gas is relatively balanced, and the phenomenon that gas overflows to a production operation site due to waste gas emission fluctuation and imbalance of an air extraction system is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of reaction kettles, in particular to an automatic reagent adding device for heterogeneous solid-liquid reactions. Background Art

[0002] Heterogeneous reaction is also called "multiphase reaction". The reactants are two-phase or more components (solid and gas, solid and liquid, two immiscible liquids). Among them, the most widely used in industry is solid-liquid reaction. Solid-liquid reaction is mainly carried out in a reactor. Most of the time, powdered solids are added to the liquid for heterogeneous reaction. The speed of the powdered solid addition controls the speed of the liquid-solid heterogeneous reaction.

[0003] During the reaction process in the reactor, when the heterogeneous solid-liquid reaction is carried out, most of the time, employees manually add powdered solids to the reactor for heterogeneous solid-liquid chemical reaction. Due to the different operating habits and gesture control accuracy of different employees, the continuous amount of powdered solids input is unstable, which can easily cause a sudden surge in the reaction rate. In the heterogeneous solid-liquid chemical reaction that produces gas, it is easy to cause instantaneous fluctuations in the generated waste gas emissions and imbalance in the exhaust system, resulting in fluctuations in the waste gas treatment system affecting the waste gas emission indicators, instantaneous fluctuations in waste gas emissions, and a sudden increase in the amount of waste gas generated. The waste gas treatment facilities are unable to extract the waste gas generated in the reactor in time, causing the waste gas to overflow to the production site, affecting the workshop working environment; and excessive local input of powdered solids leads to local excessive reaction, which leads to unstable reaction operations, resulting in unqualified products, extended operation time, reduced operation efficiency, and reduced product qualification rate.

[0004] Therefore, in order to solve the above problems, an automatic reagent adding device for heterogeneous solid-liquid reaction is proposed. Utility Model Content

[0005] In order to solve the problems raised in the above background technology, the utility model provides an automatic reagent adding device for heterogeneous solid-liquid reaction, which has the advantages of evenly and stably adding powdered solid to the liquid phase to improve production efficiency, increase product qualification rate and reduce employee labor intensity.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a device for automatically adding reagents to heterogeneous solid-liquid reactions, comprising a trolley, a lifting assembly is installed on the trolley, the lifting assembly is connected to a lifting platform, a screw feeder is installed on the lifting platform, and the top of the screw feeder is connected to a pharmaceutical raw material hopper through a feed pipe;

[0007] The screw feeder comprises a cylinder, a central axis rod is arranged in the cylinder, one end of the central axis rod passes through the cylinder and is connected to a primary motor, spiral blades are arranged on the central axis rod in the cylinder, and a discharge port is arranged at the bottom of one end of the cylinder away from the primary motor.

[0008] Preferably, the trolley comprises a base plate, movable wheels, and a push rod, wherein the movable wheels are installed at the four corners of the bottom of the base plate, foot brakes are installed on the movable wheels, and the base plate is fixedly connected to the push rod.

[0009] Preferably, the lifting assembly includes a secondary motor, the secondary motor is connected to a primary gear through a motor shaft, the primary gear is meshingly connected to a secondary gear, the secondary gear is fixedly connected to a screw rod, the screw rod is threadedly connected to a lifting block, the lifting block is slidably connected to a positioning slide rod, and the lifting block is fixedly connected to a lifting platform.

[0010] Preferably, the top end of the screw rod is movably connected to a blocking block, the bottom end of the screw rod is connected to the trolley via a bearing, and the bottom end of the positioning slide rod is fixedly connected to the trolley.

[0011] Preferably, the lifting block comprises two symmetrically arranged positioning sleeves, a threaded sleeve is provided between the positioning sleeves, and a connecting rod is fixedly connected between the threaded sleeve and the positioning sleeve.

[0012] Preferably, a reinforcing rib is fixedly connected between the lifting block and the lifting platform, and the screw feeder is fixedly connected to the lifting platform via a fixing frame.

[0013] Preferably, a vibrator is installed on the outer wall of the pharmaceutical raw material hopper, and a cover plate is connected to the top of the pharmaceutical raw material hopper via a hinge, and a handle is provided on the cover plate.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] 1. The utility model is provided with a spiral feeder and a pharmaceutical raw material hopper and other structures. The pharmaceutical powder falls into the spiral feeder under the action of gravity, and the pharmaceutical powder is continuously and evenly added to the reactor through the spiral blades, thereby reducing excessive reliance on the labor intensity of workers, generating a relatively balanced amount of waste gas, and reducing the fluctuation of waste gas emissions and the phenomenon of gas overflowing to the production site caused by the imbalance of the exhaust system;

[0016] 2. The utility model provides a trolley and a lifting assembly so that the device is not fixed on a single reactor and can be used in different reactors. The discharge port of the screw feeder is extended into the feeding port of the reactor through the trolley and the lifting assembly to feed the pharmaceutical powder, thereby improving the convenience of using the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the lifting assembly of the utility model;

[0019] Figure 3 This is a schematic diagram of the bottom structure of the lifting platform of the utility model;

[0020] Figure 4 This is a schematic cross-sectional view of the screw feeder of the utility model;

[0021] Figure 5 It is a structural schematic diagram of the utility model trolley.

[0022] In the figure: 1, trolley; 101, bottom plate; 102, moving wheel; 103, push rod;

[0023] 2. Lifting assembly; 21. Secondary motor; 22. Primary gear; 23. Secondary gear; 24. Screw rod; 25. Lifting block; 251. Positioning sleeve; 252. Threaded sleeve; 253. Connecting rod; 26. Positioning slide rod;

[0024] 3. Lifting platform;

[0025] 4. Screw feeder; 41. Cylinder; 42. Middle shaft; 43. Primary motor; 44. Screw blade; 45. Discharge port;

[0026] 5. Feeding pipe; 6. Pharmaceutical raw material bucket; 7. Block; 8. Reinforcement ribs; 9. Fixed frame; 10. Vibrator; 11. Cover plate; 12. Handle. DETAILED DESCRIPTION

[0027] 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. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] like Figures 1 to 5 As shown, the utility model provides an automatic reagent adding device for heterogeneous solid-liquid reaction, comprising a trolley 1, a lifting assembly 2 is installed on the trolley 1, the lifting assembly 2 is connected to a lifting platform 3, a screw feeder 4 is installed on the lifting platform 3, and the top of the screw feeder 4 is connected to a reagent raw material hopper 6 through a feeding pipe 5;

[0029] The screw feeder 4 includes a cylinder 41, a central axis rod 42 is arranged in the cylinder 41, one end of the central axis rod 42 passes through the cylinder 41 and is connected to a primary motor 43, a spiral blade 44 is arranged on the central axis rod 42 in the cylinder 41, and a discharge port 45 is arranged at the bottom of the end of the cylinder 41 away from the primary motor 43. The pharmaceutical powder falls into the screw feeder 4 under the action of gravity, and is continuously and evenly added to the reactor through the spiral blade 44, thereby reducing excessive reliance on the labor intensity of workers and generating a relatively balanced amount of waste gas.

[0030] Specifically, the trolley 1 includes a base plate 101 , moving wheels 102 , and a push rod 103 . The moving wheels 102 are installed at the four corners of the bottom of the base plate 101 . A foot brake is installed on the moving wheels 102 . The base plate 101 is fixedly connected to the push rod 103 .

[0031] Furthermore, the lifting component 2 includes a secondary motor 21, which is connected to a primary gear 22 through a motor shaft, and the primary gear 22 is meshingly connected to a secondary gear 23. The secondary gear 23 is fixedly connected to a screw rod 24, and the screw rod 24 is threadedly connected to a lifting block 25. The lifting block 25 is slidably connected to a positioning slide rod 26, and the lifting block 25 is fixedly connected to the lifting platform 3. The discharge port 45 of the screw feeder 4 is extended into the feeding port of the reactor through the trolley 1 and the lifting component 2, so that the pharmaceutical powder can be put in, thereby improving the convenience of using the device.

[0032] Furthermore, the top end of the screw rod 24 is movably connected to a blocking block 7, the bottom end of the screw rod 24 is connected to the trolley 1 through a bearing, and the bottom end of the positioning slide rod 26 is fixedly connected to the trolley 1.

[0033] It is worth noting that the lifting block 25 includes two symmetrically arranged positioning sleeves 251 , a threaded sleeve 252 is provided between the positioning sleeves 251 , and a connecting rod 253 is fixedly connected between the threaded sleeve 252 and the positioning sleeve 251 .

[0034] It is worth noting that a reinforcing rib 8 is fixedly connected between the lifting block 25 and the lifting platform 3 , and the screw feeder 4 is fixedly connected to the lifting platform 3 via a fixing frame 9 .

[0035] It is worth mentioning that a vibrator 10 is installed on the outer wall of the medicine raw material hopper 6 , and a cover plate 11 is connected to the top of the medicine raw material hopper 6 through a hinge, and a handle 12 is provided on the cover plate 11 .

[0036] Among them, the secondary motor 21, the primary motor 43, and the vibrator 10 are prior arts and will not be described in detail. Meanwhile, the utility model also includes a power supply, a controller, and a switch, which are not the main technical points of the patent and will not be described in detail.

[0037] Working principle and process: Pour the pharmaceutical powder into the pharmaceutical raw material bucket 6, push the trolley 1 to place the device in a suitable position next to the reactor, start the secondary motor 21 of the lifting component 2, and the primary gear 22 drives the secondary gear 23 to rotate, and then the screw 24 rotates. Under the restriction of the positioning slide bar 26, the lifting block 25 can move downward, thereby driving the lifting platform 3 to move downward, and then the screw feeder 4 moves downward, so that the discharge port 45 of the screw feeder 4 can extend into the feeding port of the reactor, start the vibrator 10 on the pharmaceutical raw material bucket 6, and under the action of vibration, the pharmaceutical powder in the pharmaceutical raw material bucket 6 can fall quickly and is not prone to blockage, start the primary motor 43 of the screw feeder 4, and the central shaft rod 42 drives the spiral blade 44 to rotate in the cylinder 41, so that the medicine can be transported. The powder is fed to the discharge port 45, and finally, the pharmaceutical powder is discharged from the discharge port 45, and falls into the reactor after passing through the feeding port on the reactor. The spiral feeder 4 can continuously and evenly add the powdered solid material to the reactor in a balanced manner, thereby reducing the instability of the continuous amount of powdered solid input caused by different operating habits and gesture control accuracy of different employees, reducing excessive reliance on the labor intensity of employees, and realizing automatic and uniform addition of powdered solids, so that the heterogeneous solid-liquid chemical reaction in the reactor proceeds smoothly, and the amount of waste gas generated is relatively balanced, reducing the fluctuation of waste gas emissions and the imbalance of the exhaust system causing gas to overflow to the production site, affecting the workshop working environment, reducing local excessive reactions caused by local excessive input of powdered solid materials, improving product qualification rate, reducing labor intensity, and improving work efficiency.

[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0039] 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 device for automatically adding reagents to a heterogeneous solid-liquid reaction, comprising a trolley (1), characterized in that: The trolley (1) is provided with a lifting assembly (2), the lifting assembly (2) is connected to a lifting platform (3), a screw feeder (4) is provided on the lifting platform (3), and the top of the screw feeder (4) is connected to a pharmaceutical raw material hopper (6) via a feed pipe (5); The screw feeder (4) comprises a barrel (41), a central axis rod (42) is arranged inside the barrel (41), one end of the central axis rod (42) passes through the barrel (41) and is connected to a primary motor (43), a spiral blade (44) is arranged on the central axis rod (42) inside the barrel (41), and a discharge port (45) is arranged at the bottom of one end of the barrel (41) away from the primary motor (43).

2. The automatic reagent adding device for heterogeneous solid-liquid reaction according to claim 1, characterized in that: The trolley (1) comprises a base plate (101), moving wheels (102), and a push rod (103); the moving wheels (102) are installed at the four corners of the bottom of the base plate (101); a foot brake is installed on the moving wheels (102); and the base plate (101) is fixedly connected to the push rod (103).

3. The automatic reagent adding device for heterogeneous solid-liquid reaction according to claim 1, characterized in that: The lifting assembly (2) comprises a secondary motor (21), the secondary motor (21) is connected to a primary gear (22) via a motor shaft, the primary gear (22) is meshingly connected to a secondary gear (23), the secondary gear (23) is fixedly connected to a lead screw (24), the lead screw (24) is threadedly connected to a lifting block (25), the lifting block (25) is slidably connected to a positioning slide rod (26), and the lifting block (25) is fixedly connected to a lifting platform (3).

4. The automatic reagent adding device for heterogeneous solid-liquid reaction according to claim 3, characterized in that: The top end of the screw rod (24) is movably connected to a blocking block (7), the bottom end of the screw rod (24) is connected to the trolley (1) via a bearing, and the bottom end of the positioning slide rod (26) is fixedly connected to the trolley (1).

5. The automatic reagent adding device for heterogeneous solid-liquid reaction according to claim 3, characterized in that: The lifting block (25) comprises two symmetrically arranged positioning sleeves (251), a threaded sleeve (252) is arranged between the positioning sleeves (251), and a connecting rod (253) is fixedly connected between the threaded sleeve (252) and the positioning sleeve (251).

6. The automatic reagent adding device for heterogeneous solid-liquid reaction according to claim 3, characterized in that: A reinforcing rib plate (8) is fixedly connected between the lifting block (25) and the lifting platform (3), and the screw feeder (4) is fixedly connected to the lifting platform (3) via a fixing frame (9).

7. The automatic reagent adding device for heterogeneous solid-liquid reaction according to claim 1, characterized in that: A vibrator (10) is installed on the outer wall of the pharmaceutical raw material hopper (6), and a cover plate (11) is connected to the top of the pharmaceutical raw material hopper (6) via a hinge, and a handle (12) is provided on the cover plate (11).

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