Granular alkali feeding device

Abstract

The application discloses a granular alkali feeding device and belongs to the technical field of granular alkali feeding. Mainly including a reaction kettle with a feeding port, and a feeding mechanism is arranged at the upper end of the reaction kettle, the feeding mechanism comprises a support arranged at the upper end of the reaction kettle, a hopper is arranged on the support, a vibrator is arranged on the two sides of the hopper, a pipeline is arranged at the bottom end of the hopper, and a quantitative valve is arranged at the lower end of the pipeline. The granular alkali feeding device realizes the accurate control of the feeding speed of the granular alkali, guarantees the smoothness of the feeding and effectively prevents the bridging and blocking, so that the feeding efficiency and the reaction stability are improved.

Description

Technical Field

[0001] This application relates to the field of granular alkali feeding technology, specifically to granular alkali feeding devices. Background Technology

[0002] In chemical production processes, granular alkali is widely used as an important alkaline raw material in various chemical reaction systems. Especially in the field of organic synthesis, the addition of granular alkali is often one of the key steps that determines the reaction effect.

[0003] Taking the reaction system of amines and toluene as an example, this reaction requires that the mixture of amines and toluene in the reactor be heated to 80°C before adding sodium hydroxide granules. This specific process condition imposes strict requirements on the feeding process of the granules.

[0004] Currently, the granular alkali feeding devices commonly used in the chemical production field mainly employ simple mechanical feeding methods. Specifically, granular alkali is typically first fed into a hopper located above the reactor, and then gravity causes the granular alkali to fall naturally into the reactor through connecting pipes.

[0005] For example, the patent with publication number CN220784495U discloses a feeding device for granular raw materials. This patent achieves feeding operation by detachably setting the discharge mechanism, thereby easily adjusting the number of discharge ports in the working state.

[0006] However, due to the strong hygroscopicity and adhesiveness of granular alkali, it is easy to form a "bridging" effect at the outlet during the material feeding process in the silo, which will interrupt the material flow, affect the continuity and stability of production, and often require machine shutdown for manual unblocking, which not only increases the labor intensity of workers, but also brings potential safety hazards.

[0007] Therefore, it is necessary to provide a granular alkali feeding device to solve the above problems.

[0008] It should be noted that the information disclosed in this background section is only for understanding the background technology of this application concept, and therefore may include information that does not constitute prior art. Summary of the Invention

[0009] Based on the aforementioned problems in the existing technology, the problem to be solved by this application is to provide a granular alkali feeding device, which solves the technical problems of easy clogging, poor material feeding, and inaccurate feeding speed control during the granular alkali feeding process.

[0010] The technical solution adopted by this application to solve its technical problem is: a granular alkali feeding device, comprising:

[0011] A reactor with a feed inlet;

[0012] A feeding mechanism is disposed at the upper end of the reactor, and the feeding mechanism includes:

[0013] A support frame is installed at the upper end of the reactor.

[0014] The hopper is mounted on the support.

[0015] Vibrators are disposed on both sides of the hopper;

[0016] A pipe is located at the bottom of the hopper;

[0017] A metering valve is installed at the lower end of the pipeline.

[0018] Furthermore, the metering valve has an inlet pipe and an outlet pipe, and a valve is fixedly installed at the lower end of the outlet pipe of the metering valve.

[0019] Furthermore, an arch-breaking mechanism is provided at the connection between the lower end of the hopper and the pipe. The arch-breaking mechanism includes a connecting pipe fixedly installed at the connection between the bottom end of the hopper and the pipe. A cover is fixedly installed on the outside of the connecting pipe. A small gear is rotatably installed inside the cover. A motor is fixedly installed at the upper end of the cover. The output end of the motor passes through the cover and is fixedly connected to the small gear.

[0020] Furthermore, a gear ring is rotatably provided inside the connecting pipe, and a notch is provided on the outside of the connecting pipe, through which the tooth surface of the gear ring passes and meshes with the pinion.

[0021] Furthermore, a connecting block is fixedly installed on the inner side of the gear ring at a position inside the connecting pipe, and an arch-breaking rod is fixedly installed on the connecting block.

[0022] Furthermore, the arch-breaking rod is set in close contact with the bottom end of the hopper.

[0023] The beneficial effects of this application are: the granular alkali feeding device provided by this application, by setting a quantitative rotary valve and a vibrator, respectively achieves precise control of the granular alkali feeding speed, ensures smooth feeding, and effectively prevents bridging and blockage, thereby improving the feeding efficiency and reaction stability.

[0024] In addition to the purposes, features, and advantages described above, this application has other purposes, features, and advantages. A further detailed description of this application will be provided below with reference to the figures. Attached Figure Description

[0025] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0026] Figure 1 This is an overall schematic diagram of the granular alkali feeding device in this application;

[0027] Figure 2 for Figure 1 Schematic diagram of the feeding mechanism;

[0028] Figure 3 for Figure 2 Schematic diagram of the arch-breaking component;

[0029] Figure 4 for Figure 2 Explosion diagram of the arch-breaking component;

[0030] Figure 5 for Figure 2 Cross-sectional schematic diagram of the arch-breaking component;

[0031] Figure 6 for Figure 3 A schematic diagram of A in the middle;

[0032] The following are the labeling elements in the figure:

[0033] 1. Reactor; 10. Feed inlet; 2. Feeding mechanism; 20. Support; 21. Hopper; 22. Vibrator; 23. Pipeline; 24. Metering valve; 26. Valve; 3. Arch breaking assembly; 30. Connecting pipe; 31. Cover; 32. Pinion; 33. Gear ring; 34. Connecting block; 35. Arch breaking rod; 36. Motor; 37. Notch. Detailed Implementation

[0034] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0035] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0036] like Figures 1-2As shown, the granular alkali feeding device provided in this application is mainly used in the field of chemical production, especially in situations where it is necessary to control the feeding speed and quantity of granular alkali during the reaction process. Specifically, the feeding device includes a reactor 1, which is the main container for chemical reaction. In order to facilitate the introduction of granular alkali into the reactor 1 for reaction, a feed inlet 10 is provided at the top of the reactor 1 so that the material can enter the reactor 1.

[0037] Meanwhile, a feeding mechanism 2 is installed at the top of the reactor 1, directly above the feed inlet 10. The feeding mechanism 2 includes a support 20 fixedly installed at the top of the reactor 1, directly above the feed inlet 10. A hopper 21 is fixedly installed on the support 20. The hopper 21 is a temporary storage container for granular alkali. Vibrators 22 are fixedly installed on both sides of the hopper 21. The vibrators 22 can be turned on by instruments. When it is detected that the granular alkali is not flowing smoothly, the operator can start the vibrator 22. The vibration generated will loosen the granular alkali in the hopper 21, thereby making the feeding smooth. This effectively avoids the trouble of manually disassembling and unblocking the pipes in the traditional method, while ensuring the continuity of the feeding process and significantly improving production efficiency.

[0038] To smoothly transport the granular alkali in hopper 21 to reactor 1, a pipe 23 is fixedly connected to the lower end of hopper 21, and a metering valve 24 is fixedly installed at the lower end of pipe 23. The metering valve 24 adopts the metering rotary valve structure disclosed in the prior art with publication number CN209492983U. The metering valve 24 has an inlet pipe (not shown in the figure) and an outlet pipe (not shown in the figure). After the granular alkali enters the metering valve 24 through the inlet pipe, it is metered by the metering mechanism of the metering valve 24 and then discharged through the outlet pipe, thereby achieving the effect of metered feeding. Furthermore, the feeding speed can be controlled by controlling the rotation speed of the metering rotary valve, thereby achieving controllability of the reaction rate.

[0039] Furthermore, a valve 26 is fixedly installed at the lower end of the discharge pipe of the metering valve 24. This valve 26 is mainly used to control the flow and cut off of granular alkali. When it is necessary to stop feeding, the valve 26 can be closed to prevent the material from continuing to flow into the reactor 1. When it is necessary to resume feeding, the valve 26 can be opened.

[0040] When feeding is required, firstly, granular alkali is loaded into hopper 21. Under the action of gravity, the granular alkali falls naturally into pipe 23. When the feeding program is started, metering valve 24 starts to work. The feeding speed is adjusted by controlling its rotation speed. After being metered by metering valve 24, the granular alkali passes through discharge pipe and valve 26, and finally enters the reactor 1 through inlet 10. In the whole process, if the feeding is not smooth, vibrator 22 can be started to promote the flow of materials through vibration and ensure the continuity of the feeding process.

[0041] To prevent bridging at the connection between the lower end of hopper 21 and pipe 23, such as Figures 1-6 As shown, an arch-breaking mechanism 3 is provided at the connection between the lower end of the hopper 21 and the pipe 23. The arch-breaking mechanism 3 includes a connecting pipe 30 fixedly installed at the connection between the bottom end of the hopper 21 and the pipe 23. A cover 31 is fixedly installed on the outside of the connecting pipe 30. A small gear 32 is rotatably installed inside the cover 31. A motor 36 is fixedly installed at the upper end of the cover 31. The output end of the motor 36 passes through the cover 31 and is fixedly connected to the small gear 32. Thus, when the motor 36 is started, it can drive the small gear 32 to rotate inside the cover 31.

[0042] Meanwhile, a gear ring 33 is rotatably provided inside the connecting pipe 30, and a notch 37 is provided on the connecting pipe 30, so that the tooth surface of the gear ring 33 passes through the notch 37 and meshes with the pinion 32. Thus, when the motor 36 drives the pinion 32 to rotate, the gear ring 33 can be driven to rotate on the connecting pipe 30 through gear meshing.

[0043] Furthermore, a connecting block 34 is fixedly installed inside the connecting pipe 30 on the inner side of the gear ring 33. An arch-breaking rod 35 is fixedly installed on the connecting block 34. The arch-breaking rod 35 is set in close contact with the bottom end of the hopper 21. When the motor 36 is started, the gear ring 33 is driven by the pinion 32, which in turn drives the arch-breaking rod 35 to rotate along the bottom end of the hopper 21, thereby achieving the effect of arch breaking.

[0044] When the system detects or the operator discovers that bridging may occur at the bottom of the hopper 21, the motor 36 is started. The motor 36 drives the pinion 32 to rotate, the pinion 32 drives the gear ring 33 to rotate, and the gear ring 33 drives the anti-bridging rod 35 to rotate along the bottom of the hopper through the connecting block 34.

[0045] At this time, the arch-breaking rod 35 will mechanically break the arch structure formed by the granular alkali during rotation, restore the normal flow of materials, and can be completed simultaneously during feeding without stopping production, thus greatly improving production efficiency.

[0046] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A granular alkali feeding device, comprising a reactor (1) having a feed inlet (10), characterized in that: A feeding mechanism (2) is disposed at the upper end of the reactor (1), and the feeding mechanism (2) includes: A support (20) is provided at the upper end of the reactor (1); A hopper (21) is mounted on the support (20); A vibrator (22) is provided on both sides of the hopper (21); Pipe (23), which is located at the bottom end of the hopper (21); A metering valve (24) is provided at the lower end of the pipe (23).

2. The granular alkali feeding device according to claim 1, characterized in that: The metering valve (24) has an inlet pipe and an outlet pipe, and a valve (26) is fixedly installed at the lower end of the outlet pipe of the metering valve (24).

3. The granular alkali feeding device according to claim 1, characterized in that: An arch-breaking mechanism (3) is provided at the connection between the lower end of the hopper (21) and the pipe (23). The arch-breaking mechanism (3) includes a connecting pipe (30) fixedly installed at the connection between the bottom end of the hopper (21) and the pipe (23). A cover (31) is fixedly installed on the outside of the connecting pipe (30). A small gear (32) is rotatably installed inside the cover (31). A motor (36) is fixedly installed at the upper end of the cover (31). The output end of the motor (36) passes through the cover (31) and is fixedly connected to the small gear (32).

4. The granular alkali feeding device according to claim 3, characterized in that: The connecting pipe (30) is rotatably provided with a gear ring (33), and a notch (37) is opened on the outside of the connecting pipe (30). The tooth surface of the gear ring (33) passes through the notch (37) and meshes with the pinion (32).

5. The granular alkali feeding device according to claim 4, characterized in that: A connecting block (34) is fixedly installed on the inner side of the gear ring (33) at a position inside the connecting pipe (30), and an arch-breaking rod (35) is fixedly installed on the connecting block (34).

6. The granular alkali feeding device according to claim 5, characterized in that: The arch-breaking rod (35) is set in close contact with the bottom end of the hopper (21).

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