Feeding device for preparing methyl benzoate by one-pot method

Abstract

The feeding device comprises a base, a metering pump assembly is fixedly arranged in the middle of the upper end of the base, and a second motor is fixedly arranged at the upper end of one side of the metering pump assembly. A first raw material tank and a second raw material tank are fixedly arranged at the upper end, located on one side of the metering pump assembly, of the base, the first raw material tank and the second raw material tank are symmetrically arranged, a first raw material pipe is fixedly arranged below the exterior of the first raw material tank, and a second raw material pipe is fixedly arranged below the exterior of the second raw material tank; the first raw material pipe is communicated with the second raw material pipe, a second connecting pipe is fixedly arranged outside the joint of the first raw material pipe and the second raw material pipe, one end of the second connecting pipe is communicated with the metering pump assembly, and the structure solves the problems that raw materials are not convenient enough to add, and the raw materials in the raw material tank are easy to precipitate.

Description

TECHNICAL FIELD

[0001] The utility model relates to methyl benzoate preparation technical field, concretely is a kind of one-pot preparation methyl benzoate with feeding device. BACKGROUND

[0002] Methyl benzoate, also known as methyl benzoate, is relatively stable in air, and cannot react with other substances chemically. It can be oxidized by oxidizing agents and saponified by alkaline substances. It is easy to undergo ester exchange reaction with other alcohols and can be hydrolyzed into benzoic acid by alkaline catalyst. As an organic synthesis intermediate, methyl benzoate participates in various chemical reactions. Usually, benzoic acid and methanol are used as raw materials, sulfuric acid or hydrochloric acid is added as catalyst, and the reaction is carried out in a reaction tank at about 60°C for 6 hours. After the reaction is completed, methyl benzoate is separated by distillation. The reaction tank needs to be used with the feeding device.

[0003] For example, the Chinese patent with publication number CN221332795U, "A vacuum distillation device for producing methyl benzoate", includes a main tank body and a mixing assembly. The inner wall of the main tank body is additionally provided with heating blocks, and the lower end of the main tank body is provided with support column feet. A thermometer is installed on the left side of the upper end of the main tank body, and a condenser pipe is provided on the right side of the upper end of the main tank body. The inside of the main tank body is provided with a mixing assembly, which includes a servo motor, a support rod, a stirring rod, a vertical scraper, a mounting block, and a horizontal scraper. The front end of the servo motor is connected with a support rod, and the outside of the support rod is installed with a stirring rod. The front end of the stirring rod is additionally provided with a vertical scraper, and the lower end of the stirring rod is provided with a mounting block. The front end of the mounting block is provided with a horizontal scraper. The right side of the main tank body is provided with a mounting assembly. The number of support column feet is four, and the four support column feet are symmetrically arranged on both sides of the lower end of the main tank body with the front central axis of the main tank body as the center. The outside of the stirring rod is flush with the inside of the main tank body, and the stirring rod is rotationally connected with the main tank body through the servo motor. The horizontal scraper and the stirring rod are horizontally distributed, and the horizontal scraper is threadedly connected with the stirring rod through the mounting block. The mounting assembly includes a placement table, an anti-skid rubber pad, and a fixing rod. The anti-skid rubber pad is arranged on the upper end of the placement table.

[0004] The above-mentioned prior art can realize the preparation of methyl benzoate, but in actual use, on the one hand, the addition of raw materials is not convenient, and usually the addition of raw materials requires the assistance of operating personnel, which increases the workload of operating personnel for each preparation of methyl benzoate, and on the other hand, the raw materials in the raw material tank are prone to sedimentation. The raw materials in the raw material tank can be used for the preparation of methyl benzoate for multiple times, which causes the remaining raw materials to be prone to sedimentation in the raw material tank, thereby affecting the preparation quality of methyl benzoate. Therefore, it does not meet the existing demand. Therefore, we propose a feeding device for one-pot preparation of methyl benzoate. UTILITY MODEL CONTENT

[0005] The utility model discloses a kind of feeding devices for preparing methyl benzoate with one-pot method, to solve the problem that raw materials are not convenient to add in the above background technology, and raw materials in raw material tank are prone to sediment.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of feeding devices for preparing methyl benzoate with one-pot method, including base, the middle of the upper end of the base is fixedly provided with metering pump assembly, the upper end of one side of the metering pump assembly is fixedly provided with second motor, the upper end of the base is fixedly provided with first raw material tank and second raw material tank on one side of metering pump assembly, first raw material tank and second raw material tank are symmetrically arranged, the lower outside of the first raw material tank is fixedly provided with first raw material pipe, the lower outside of the second raw material tank is fixedly provided with second raw material pipe, first raw material pipe and second raw material pipe are communicated, the outside of the junction of first raw material pipe and second raw material pipe is fixedly provided with second connecting pipe, and one end of second connecting pipe is communicated with metering pump assembly.

[0007] Preferably, the outside of the first raw material pipe and the second raw material pipe is fixedly provided with third valve, and the other side of the upper end of the metering pump assembly is fixedly provided with first connecting pipe.

[0008] Preferably, the upper end of the first raw material tank and the second raw material tank is provided with tank cover, and the tank cover is connected with the first raw material tank and the second raw material tank by buckle connection, the lower end of the tank cover is provided with rotating rod, the rotating rod is rotatably connected with the tank cover, and the outside of the rotating rod is provided with three groups of stirring vanes, and the stirring vanes are equidistantly distributed from top to bottom.

[0009] Preferably, the upper end of the tank cover is fixedly provided with first motor, and the output shaft of the first motor extends to the lower side of the tank cover and is fixedly connected with the rotating rod.

[0010] Preferably, the outside of the first connecting pipe is fixedly provided with liquid outlet pipe, the outside of the second connecting pipe is fixedly provided with liquid inlet pipe, and the outside of the liquid outlet pipe and the liquid inlet pipe is fixedly provided with first valve.

[0011] Preferably, the outside of the first connecting pipe located below the liquid outlet pipe is fixedly provided with second valve.

[0012] Preferably, the other side of the upper end of the base is fixedly provided with reaction tank, and the reaction tank is communicated with the first connecting pipe.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] (1) The utility model discloses a metering pump assembly and third valve can be different raw materials quantitative addition reaction tank, when adding a certain raw material, close first valve and second raw material pipe on the third valve, open second motor at this moment, make second motor drive metering pump assembly and extract the raw material in first raw material tank, at this time, raw material passes through first raw material pipe, second connecting pipe, metering pump assembly and first connecting pipe in proper order, finally, raw material is added to reaction tank, and the metering pump assembly shows the addition amount of raw material, until the raw material reaches the proper amount, at this time, another raw material is added to reaction tank after flushing the whole pipeline by clean water, thereby improve the convenience of raw material.

[0015] (2) The utility model discloses a first motor and stirring fan blade can carry out the stirring operation to raw material, when preparing methyl benzoate, open first motor, make the output shaft of first motor drive rotary rod and rotate in first raw material tank, second raw material tank, at this time, the stirring fan blade fixedly connected with rotary rod rotates together, make the raw material in first raw material tank, second raw material tank be fully stirred through the rotation of stirring fan blade, thereby reduce the raw material and appear the deposit.

[0016] (3) The utility model discloses a liquid outlet pipe and liquid inlet pipe can flush first connecting pipe and second connecting pipe, after adding one raw material to reaction tank, close second valve and third valve at this time, and open first valve, then connect external clean water pipe with liquid inlet pipe, at this time, flush clean water through clean water pipe into liquid inlet pipe through water pump, clean water passes through second connecting pipe, metering pump assembly, first connecting pipe in proper order, until clean water is discharged from liquid outlet pipe, at this time, complete the flushing of first connecting pipe and second connecting pipe, then add another raw material to reaction tank through first connecting pipe and second connecting pipe, thereby reduce the mutual pollution between different raw materials, thereby improve the purity of product. ACCURACY

[0017] Figure 1 It is the overall structure perspective drawing of the utility model;

[0018] Figure 2 It is the overall structure plan view of the utility model;

[0019] Figure 3 It is the internal structure front view of the utility model;

[0020] Figure 4 It is the internal structure side view of the utility model.

[0021] In the figure: 1, base; 2, reaction tank; 3, first raw material tank; 4, second raw material tank; 5, tank cover; 6, first motor; 7, metering pump assembly; 8, second motor; 9, first connecting pipe; 10, liquid outlet pipe; 11, first valve; 12, second valve; 13, liquid inlet pipe; 14, first raw material pipe; 15, second raw material pipe; 16, third valve; 17, second connecting pipe; 18, rotating rod; 19, stirring fan blade. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0023] Please refer to Figures 1-4 The utility model provides an embodiment: a kind of methyl benzoate preparation with feeding device of one-pot method, including base 1, the middle of upper end of base 1 is fixedly arranged with metering pump assembly 7, the upper end of one side of metering pump assembly 7 is fixedly arranged with second motor 8, the upper end of one side of base 1 at metering pump assembly 7 is fixedly arranged with first raw material tank 3 and second raw material tank 4, first raw material tank 3 and second raw material tank 4 are symmetrically arranged, second valve 12 is fixedly arranged in the outside of first connecting pipe 9 below liquid outlet pipe 10, the other side of upper end of base 1 is fixedly arranged with reaction tank 2, reaction tank 2 is communicated with first connecting pipe 9.

[0024] Please refer to Figure 1 、 Figure 2 And Figure 3 First raw material pipe 14 is fixedly arranged in the outside below first raw material tank 3, second raw material pipe 15 is fixedly arranged in the outside below second raw material tank 4, first raw material pipe 14 and second raw material pipe 15 are communicated, second connecting pipe 17 is fixedly arranged in the outside of the junction of first raw material pipe 14 and second raw material pipe 15, one end of second connecting pipe 17 is communicated with metering pump assembly 7, third valve 16 is fixedly arranged in the outside of first raw material pipe 14 and second raw material pipe 15, first connecting pipe 9 is fixedly arranged on the other side of upper end of metering pump assembly 7, different raw materials can be added into reaction tank 2 by third valve 16.

[0025] Please refer to Figure 1 And Figure 4The upper end of the first raw material tank 3 and the second raw material tank 4 is provided with a tank cover 5, the tank cover 5 is connected with the first raw material tank 3 and the second raw material tank 4 by buckling, the lower end of the tank cover 5 is provided with a rotating rod 18, the rotating rod 18 is rotatably connected with the tank cover 5, the outside of the rotating rod 18 is provided with three groups of stirring blades 19, the stirring blades 19 are equidistantly distributed from top to bottom, the upper end of the tank cover 5 is fixedly provided with a first motor 6, the output shaft of the first motor 6 extends to the lower side of the tank cover 5 and is fixedly connected with the rotating rod 18, so as to facilitate the stirring of the raw materials by the stirring blades 19.

[0026] Please refer to Figure 1 and Figure 2 The outside of the first connecting pipe 9 is fixedly provided with a liquid outlet pipe 10, the outside of the second connecting pipe 17 is fixedly provided with a liquid inlet pipe 13, the outside of the liquid outlet pipe 10 and the liquid inlet pipe 13 is fixedly provided with a first valve 11, so as to facilitate the flushing of the overall pipeline through the liquid outlet pipe 10 and the liquid inlet pipe 13.

[0027] Working principle: when using, when adding a certain raw material, the first valve 11 and the third valve 16 on the second raw material pipe 15 are closed, at this time the second motor 8 is opened, so that the second motor 8 drives the metering pump assembly 7 to extract the raw materials in the first raw material tank 3, at this time the raw materials pass through the first raw material pipe 14, the second connecting pipe 17, the metering pump assembly 7 and the first connecting pipe 9 in turn, and finally the raw materials are added to the reaction tank 2, at the same time the metering pump assembly 7 displays the amount of raw materials added, until the raw materials reach the appropriate amount, at this time the second valve 12 and the third valve 16 are closed, and the first valve 11 is opened, then the external water pipe is connected with the liquid inlet pipe 13, at this time the water pump is used to pour the water into the liquid inlet pipe 13 through the water pipe, the water passes through the second connecting pipe 17, the metering pump assembly 7 and the first connecting pipe 9 in turn, until the water is discharged from the liquid outlet pipe 10, at this time the flushing of the first connecting pipe 9 and the second connecting pipe 17 is completed, then another raw material is added to the reaction tank 2 through the first connecting pipe 9 and the second connecting pipe 17, when preparing, the first motor 6 is opened, so that the output shaft of the first motor 6 drives the rotating rod 18 to rotate in the first raw material tank 3 and the second raw material tank 4, at this time the stirring blades 19 fixedly connected with the rotating rod 18 rotate together, the rotation of the stirring blades 19 makes the raw materials in the first raw material tank 3 and the second raw material tank 4 fully stirred.

[0028] It is apparent for a person skilled in the art that the present application is not restricted to the details of the above exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary only, and not limiting, the scope of the present application being defined by the appended claims rather than the above description, and all changes coming within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims concerned.

Claims

1. A feeding device for one-pot preparation of methyl benzoate comprising a base (1), characterized in that: The middle of the upper end of the base (1) is fixedly provided with a metering pump assembly (7), one side of the upper end of the metering pump assembly (7) is fixedly provided with a second motor (8), and the upper end of the base (1) on one side of the metering pump assembly (7) is fixedly provided with a first raw material tank (3) and a second raw material tank (4). The first raw material tank (3) and the second raw material tank (4) are symmetrically arranged, a first raw material pipe (14) is fixedly arranged below the outside of the first raw material tank (3), a second raw material pipe (15) is fixedly arranged below the outside of the second raw material tank (4), the first raw material pipe (14) and the second raw material pipe (15) are communicated, and a second connecting pipe (17) is fixedly arranged outside the connection between the first raw material pipe (14) and the second raw material pipe (15). One end of the second connecting pipe (17) is communicated with the metering pump assembly (7).

2. The feeding device for one-pot preparation of methyl benzoate according to claim 1, characterized in that: The outside of the first raw material pipe (14) and the second raw material pipe (15) is fixedly provided with a third valve (16), and the other side of the upper end of the metering pump assembly (7) is fixedly provided with a first connecting pipe (9).

3. The feeding device for one-pot preparation of methyl benzoate according to claim 2, characterized in that: The upper end of the first raw material tank (3) and the second raw material tank (4) is provided with a tank cover (5), and the tank cover (5) is connected with the first raw material tank (3) and the second raw material tank (4) by buckling. The lower end of the tank cover (5) is provided with a rotating rod (18), and the rotating rod (18) is rotatably connected with the tank cover (5). The outside of the rotating rod (18) is provided with three groups of stirring blades (19), which are equidistantly distributed from top to bottom.

4. The feeding device for one-pot preparation of methyl benzoate according to claim 3, characterized in that: The upper end of the tank cover (5) is fixedly provided with a first motor (6), and the output shaft of the first motor (6) extends below the tank cover (5) and is fixedly connected with the rotating rod (18).

5. The feeding device for one-pot preparation of methyl benzoate according to claim 4, characterized in that: The outside of the first connecting pipe (9) is fixedly provided with a liquid outlet pipe (10), and the outside of the second connecting pipe (17) is fixedly provided with a liquid inlet pipe (13). The outside of the liquid outlet pipe (10) and the liquid inlet pipe (13) is fixedly provided with a first valve (11).

6. A charging device for one-pot preparation of methyl benzoate according to claim 5, characterized in that: The outside of the first connecting pipe (9) below the liquid outlet pipe (10) is fixedly provided with a second valve (12).

7. The feeding device for one-pot preparation of methyl benzoate according to claim 6, characterized in that: The other side of the upper end of the base (1) is fixedly provided with a reaction tank (2), and the reaction tank (2) is communicated with the first connecting pipe (9).

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