Aniline quantitative feeding device

Abstract

The utility model relates to a fluorobenzene production field especially aniline quantitative feeding device, the utility model discloses in order to solve the fixed proportion of anhydrous hydrogen fluoride and aniline in modern mass production, the prior art needs to inject after two fixed each time, the reaction starts, and the production efficiency is lower technical problem, the upper portion of slide plate is contacted with the gyro wheel, the gyro wheel rotation is connected on the support, the support lower extreme is connected on the partition board, the other side of gyro wheel is contacted with the sealing sliding vane, the sealing sliding vane sliding is connected on the two side walls of storage room, the storage room is connected on the partition board, and the two side wall sealing sliding vane is connected through the connecting plate, one side sealing sliding vane upper portion is equipped with the liquid outlet, after anhydrous hydrogen fluoride is injected in the side of reaction chamber, the liquid outlet of storage liquid chamber aniline moves down, the aniline that flows out of storage liquid chamber is fixed with the proportion of the anhydrous hydrogen fluoride that injects, and it is not necessary to inject again multiple times, and the partition board is lifted after injection is finished, and the float plate does not fall and move up, and the aniline stops discharging, and the aniline and anhydrous hydrogen fluoride of fixed proportion react into salt.

Description

Technical Field

[0001] This utility model relates to the field of fluorobenzene production, and more particularly to an aniline metering feeding device. Background Technology

[0002] There are several methods for producing fluorobenzene. Among them, the anhydrous hydrogen fluoride method has the advantages of low raw material consumption, advanced technology and short production process. In this method, aniline is salted in anhydrous hydrogen fluoride and then diazotized with dry sodium nitrite to complete the preparation of fluorobenzene.

[0003] In modern mass production, the ratio of anhydrous hydrogen fluoride to aniline is fixed. Existing technology requires injecting the mixture after each two-stage reaction to start the reaction, resulting in low production efficiency. This invention solves the above problems. Utility Model Content

[0004] This invention addresses the technical problem of low production efficiency in modern mass production where the ratio of anhydrous hydrogen fluoride to aniline is fixed, requiring injection after each step to initiate the reaction. Therefore, it provides an aniline quantitative feeding device.

[0005] A quantitative aniline feeding device includes: a reaction chamber, a partition plate slidably connected to the middle of the reaction chamber, a float plate provided on one side of the partition plate, a slide plate vertically connected to the upper surface of the float plate, the slide plate being vertically slidably connected to one side of the partition plate by a limiter, the upper part of the slide plate contacting a roller, the roller being rotatably connected to a support, the lower end of the support being connected to the partition plate, the other side of the roller contacting a sealing slide, the sealing slide being slidably connected to the two side walls of a storage chamber, the storage chamber being connected to the partition plate, the sealing slides on the two side walls being connected by a connecting plate, and a liquid outlet provided on the upper part of one sealing slide.

[0006] Furthermore, hydraulic cylinders are connected to both ends of the partition plate.

[0007] Furthermore, the limiter includes ratchet teeth on the side wall of the slide plate, the lower surface of the ratchet teeth is flat, the limit plate is in contact with the ratchet teeth, the limit plate is connected to the slide frame, the side of the slide frame is connected to a slide rod, the slide rod is slidably connected to the side wall of the partition plate, a spring is sleeved on the slide rod, and the two ends of the spring are respectively connected to the partition plate and the slide frame.

[0008] The beneficial effects of this utility model are:

[0009] 1. After anhydrous hydrogen fluoride is injected into one side of the reaction chamber, the aniline outlet of the storage chamber moves downward, and the ratio of aniline flowing out of the storage chamber to the injected anhydrous hydrogen fluoride is fixed, so there is no need to measure repeatedly when re-injecting.

[0010] 2. After injection is complete, the partition plate is raised, the float will not fall or move up, aniline stops being discharged, and a fixed proportion of aniline reacts with anhydrous hydrogen fluoride to form salt. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0012] Figure 2 This is a schematic cross-sectional view of the structure of this utility model;

[0013] Figure 3 This is a utility model Figure 2 Enlarged schematic diagram of the local structure at point A;

[0014] Figure 4 This is a schematic diagram of the structure of the limiter 5 of this utility model;

[0015] In the diagram: 1. Reaction chamber; 2. Divider plate; 3. Float plate; 4. Slide plate; 5. Limiter; 51. Ratchet; 52. Limiting plate; 53. Slide frame; 54. Slide rod; 55. Spring; 6. Roller; 7. Support; 8. Sealing slide plate; 9. Storage chamber; 10. Connecting plate; 11. Liquid outlet; 12. Hydraulic cylinder. Detailed Implementation

[0016] 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.

[0017] The rotary connection described in this device refers to the axial fixation of the bearing by mounting the bearing on the shaft, with a spring retaining ring groove provided on the shaft or shaft hole, and the rotation achieved by locking the elastic retaining ring in the retaining ring groove; the hinge connection refers to the connection method that allows movement through connecting parts such as hinges, pins, and short shafts.

[0018] The present invention will now be described in detail with reference to the accompanying drawings.

[0019] Example 1:

[0020] The following is in conjunction with the appendix Figure 1-4 This embodiment describes an aniline metering device, comprising a reaction chamber 1, a partition plate 2 slidably connected to the middle of the reaction chamber 1, a float plate 3 on one side of the partition plate 2, a slide plate 4 vertically connected to the upper surface of the float plate 3, the slide plate 4 being vertically slidably connected to one side of the partition plate 2 via a limiter 5, the upper part of the slide plate 4 contacting a roller 6, the roller 6 being rotatably connected to a support 7, the lower end of the support 7 being connected to the partition plate 2, the other side of the roller 6 contacting a sealing slide plate 8, the sealing slide plate 8 being slidably connected to the two side walls of a storage chamber 9, the storage chamber 9 being connected to the partition plate 2, the two side wall sealing slide plates 8 being connected via a connecting plate 10, and a liquid outlet 11 being provided on the upper part of one side of the sealing slide plate 8;

[0021] In use, anhydrous hydrogen fluoride is injected into reaction chamber 1. The liquid hydrogen fluoride lifts the float 3, and the float 3 drives the slide plate 4 to move vertically upward in the limiter 5. The slide plate 4 drives the roller 6 to rotate, and the roller 6 drives the sealing slide 8 to slide downward. The sealing slide 8 drives the other side sealing slide 8 to slide downward through the connecting plate 10. The sealing slide 8 drives the outlet 11 to slide downward. The aniline liquid in storage chamber 9 is injected to the area below the outlet 11. The outlet 11 slides downward and moves to below the liquid surface, and the aniline is discharged. After injecting a certain volume of anhydrous hydrogen fluoride, a corresponding proportion of aniline will flow out, achieving a fixed proportion of discharge. The separator 2 separates the aniline and hydrogen fluoride. After the total amount reaches the specified amount, the separator 2 is raised and the slide plate 4 is fixed. The aniline and hydrogen fluoride then mix and react to form a salt.

[0022] Hydraulic cylinders 12 are connected to both ends of the partition plate 2;

[0023] The partition plate 2 is raised by hydraulic cylinder 12, which is convenient and quick.

[0024] The limiter 5 includes a ratchet 51 on the side wall of the slide plate 4. The lower surface of the ratchet 51 is flat. The limit plate 52 contacts the ratchet 51. The limit plate 52 is connected to the slide 53. The slide 53 is connected to the side of the slide rod 54. The slide rod 54 is slidably connected to the side wall of the partition plate 2. The spring 55 is sleeved on the slide rod 54. The two ends of the spring 55 are connected to the partition plate 2 and the slide 53 respectively.

[0025] When the slide plate 4 rises, the inclined surface of the ratchet 51 on the slide plate 4 contacts the limiting plate 52. The limiting plate 52 drives the slide rod 54 to slide outward through the slide 53. The spring 55 is stretched, and the limiting plate 52 passes over the inclined surface of the ratchet 51 and enters the position between the two ratchet 51. When the slide plate 4 falls under gravity, the limiting plate 52 contacts the plane of the ratchet 51, and the slide plate 4 cannot slide down. Therefore, when the partition plate 2 is raised, the float plate 3 is no longer in contact with the liquid surface, the slide plate 4 is stuck and will not slide down, and the liquid outlet 11 will not slide down, causing the aniline to be added in excess.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An aniline metering feeding device, characterized in that: include: The reaction chamber (1) is slidably connected to the middle of the reaction chamber (1). A float plate (3) is provided on one side of the partition plate (2). A slide plate (4) is vertically connected to the upper surface of the float plate (3). The slide plate (4) is vertically slidably connected to one side of the partition plate (2) through a limiter (5). The upper part of the slide plate (4) is in contact with a roller (6). The roller (6) is rotatably connected to a support (7). The lower end of the support (7) is connected to the partition plate (2). The other side of the roller (6) is in contact with a sealing slide plate (8). The sealing slide plate (8) is slidably connected to the two side walls of the storage chamber (9). The storage chamber (9) is connected to the partition plate (2). The sealing slide plates (8) on both side walls are connected through a connecting plate (10). A liquid outlet (11) is provided on the upper part of one side of the sealing slide plate (8).

2. The aniline metering device according to claim 1, characterized in that: Hydraulic cylinders (12) are connected to both ends of the partition plate (2).

3. The aniline metering device according to claim 1, characterized in that: The limiter (5) includes a ratchet (51) on the side wall of the slide plate (4). The lower surface of the ratchet (51) is flat. The limiter (52) is in contact with the ratchet (51). The limiter (52) is connected to the slide (53). The slide (53) is connected to the side of the slide rod (54). The slide rod (54) is slidably connected to the side wall of the partition plate (2). The spring (55) is sleeved on the slide rod (54). The two ends of the spring (55) are connected to the partition plate (2) and the slide (53) respectively.

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