Mixing device for producing p-phenylenediamine

Abstract

The utility model relates to a mixing device for producing p-phenylenediamine, which comprises a mixing device body, a working component for stirring and cleaning the inside of the mixing device body is arranged in the mixing device body, a feed sealing component is arranged at the top of the mixing device body, and a discharge pipe is arranged at the bottom of the mixing device body. The working assembly comprises a servo motor fixedly installed at the bottom of the mixing device body, the output end of the servo motor extends to the bottom of the mixing device body and is fixedly connected with a base, a supporting column is slidably connected to the base, and a driving device for driving the supporting column to ascend and descend is installed at the top of the mixing device body. The base and the supporting column are at least provided with one set of rotating assembly capable of driving the scraping plate to expand or contract under the action of the driving device, the raw material mixing efficiency is improved through the scraping plate, meanwhile, residues in the mixing device body can be removed through the scraping plate, and the tedious step of disassembling a container for cleaning is avoided.

Description

Technical Field

[0001] The utility model relates to the field of mixing devices, in particular to a mixing device for producing p-phenylenediamine. Background Art

[0002] p-phenylenediamine is an important chemical raw material, widely used in pharmaceuticals, dyes, pesticides and synthetic materials. Due to its key role in various chemical reactions, the production process of p-phenylenediamine has been studied and improved for a long time. In order to improve the production efficiency of p-phenylenediamine and ensure the quality of the product, it is crucial to develop an efficient mixing device.

[0003] Chinese patent publication number CN212732157U discloses a "mixing device for producing p-phenylenediamine". The device is provided with a reactor top cover at the upper end of the reactor body. The reactor top cover is connected to the stirring shaft. The stirring shaft and the stirring rod can be separated from the reactor body through the easily disassembled reactor top cover, so that the stirring rod and the reactor body can be cleaned separately, which facilitates cleaning and improves the cleaning effect, avoiding affecting the use efficiency of the mixing device. In addition, the reactor body can be shaken by the rotating mechanism on both sides of the reactor body, which can provide auxiliary effects for unloading and cleaning.

[0004] When cleaning the device, the mixing device body and the stirring rod need to be disassembled, and then the mixing device body needs to be rotated and shaken to complete the cleaning. The time required for disassembly and cleaning is long, which significantly increases the downtime of the equipment and reduces production efficiency. Frequent disassembly and reassembly of the equipment may cause wear of equipment interfaces, screws, seals and other components, reducing the service life of the equipment. Utility Model Content

[0005] The utility model aims to provide a mixing device for producing p-phenylenediamine, which can improve the mixing efficiency of raw materials by means of a scraper and can also use the scraper to clean the residues in the mixing device body, thus avoiding the cumbersome steps of disassembling the container for cleaning.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] The technical solution of the utility model is as follows: a mixing device for producing p-phenylenediamine, comprising a mixing device body, wherein a working component for stirring and cleaning the interior of the mixing device body is arranged inside the mixing device body, a feed sealing component is arranged on the top of the mixing device body, and a discharge pipe is arranged at the bottom of the mixing device body.

[0008] The working component includes a servo motor fixedly installed at the bottom of the mixing device body, the output end of the servo motor extends to the bottom of the mixing device body and is fixedly connected to a base, a support column is slidably connected to the base, a driving device for driving the support column to rise and fall is installed on the top of the mixing device body, and at least one group of rotating components that can drive the scraper to expand or contract under the action of the driving device are arranged on the base and the support column.

[0009] Furthermore, the rotating components are provided in four groups and are symmetrically arranged on the periphery of the base or the supporting column.

[0010] Further, the rotating assembly includes a first rotating rod and a second rotating rod arranged in a cross manner;

[0011] The two ends of the first rotating rod are rotatably connected to the base and the scraper through a hinge seat, and the two ends of the second rotating rod are rotatably connected to the support column and the scraper through a hinge seat.

[0012] Furthermore, a cleaning pad is fixedly mounted on the outer wall of the scraper.

[0013] Furthermore, the driving device includes a cylinder installed on the top of the mixing device body, the output end of the cylinder passes through the top of the mixing device body and is fixedly connected to the top of the support column through a bearing seat, and the output end of the cylinder is rotatably matched with the support column through a bearing.

[0014] Furthermore, the feed sealing assembly includes a feed pipe arranged at the top of the mixing device body, and a rubber ring is provided at the top of the feed pipe.

[0015] Furthermore, the feed sealing assembly also includes a top cover that is detachably matched with the feed pipe, a sealing ring that is adapted to the outer wall of the feed pipe is provided at the bottom of the top cover, and a sealing ring that abuts against the rubber ring is provided inside the top cover.

[0016] Compared with the prior art, the advantages and positive effects of the utility model are:

[0017] When in use, the raw materials required for producing p-phenylenediamine are sequentially added into the interior of the mixing device body. Through the rotation of the scraper, the uniformity of the material mixing in the mixing device body can be ensured, the production efficiency of p-phenylenediamine is improved, and the time required for the reaction is reduced. After the p-phenylenediamine is discharged after the production is completed, cleaning water is introduced into the interior of the mixing device body, and the expansion of the scraper is controlled by the driving device so that the cleaning pad is attached to the inner wall of the mixing device body. The rotation of the scraper is driven by the servo motor to clean the mixing device body, which can not only remove the residues in the mixing device body, but also save the tedious steps of disassembling the container for cleaning, save the time and workload required for cleaning, improve the cleaning effect, avoid the damage of the mixing device body caused by the residual chemical substances, and extend the service life of the mixing device body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the main cross-sectional structure provided by the utility model;

[0019] Figure 2 A schematic diagram of the main structure provided by the utility model;

[0020] Figure 3 A schematic diagram of the structure of the working components provided by the utility model;

[0021] Figure 4 This is a structural schematic diagram of the sealing component provided by the utility model.

[0022] Legend: 1. Mixing device body; 2. Cylinder; 3. Working assembly; 301. Base; 302. Support column; 303. First connecting rod; 304. Second connecting rod; 305. Scraper; 306. Articulated seat; 307. Cleaning pad; 4. Servo motor; 5. Sealing assembly; 501. Feed pipe; 502. Rubber ring; 503. Top cover; 504. Sealing ring; 505. Sealing ring; 6. Discharge pipe. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with 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 of the embodiments.

[0024] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0025] like Figure 1-Figure 4As shown, the utility model provides a mixing device for producing p-phenylenediamine, including a mixing device body 1, a working component 3 for stirring and cleaning the inside of the mixing device body 1 is arranged inside the mixing device body 1, and a discharge pipe 6 is arranged at the bottom of the mixing device body 1. Specifically, the working component 3 includes a servo motor 4 fixedly installed at the bottom of the mixing device body 1, the output end of the servo motor 4 extends to the bottom of the mixing device body 1 and is fixedly connected to a base 301, a support column 302 is slidably connected to the base 301, a driving device for driving the support column 302 to rise and fall is installed on the top of the mixing device body 1, and at least one set of rotating components that can drive the scraper 305 to expand or contract under the action of the driving device is arranged on the base 301 and the support column 302.

[0026] like Figure 3 As shown, the rotating assembly includes a first rotating rod 303 and a second rotating rod 304 arranged in a cross pattern, the two ends of the first rotating rod 303 are rotatably connected to the base 301 and the scraper 305 respectively through a hinge seat 306, the two ends of the second rotating rod 304 are rotatably connected to the support column 302 and the scraper 305 respectively through a hinge seat 306, and a cleaning pad 307 is fixedly installed on the outer wall of the scraper 305. Preferably, four groups of rotating assemblies are provided, which are symmetrically arranged on the periphery of the base 301 or the support column 302, so as to further improve the stirring effect and the efficiency of cleaning the inner wall of the mixing device body 1.

[0027] In addition, in order to clean the inner wall of the mixing device body 1 by the scraper 305, a driving device for driving the support column 302 to rise and fall is installed on the top of the mixing device body 1. Specifically, the driving device includes a cylinder 2 installed on the top of the mixing device body 1, and the output end of the cylinder 2 passes through the top of the mixing device body 1 and is fixedly connected to the top of the support column 302 through a bearing seat, and the output end of the cylinder 2 is rotatably matched with the support column 302 through a bearing.

[0028] During production, the raw materials required for p-phenylenediamine are sequentially added to the interior of the mixing device body 1. The servo motor 4 is started, and the servo motor 4 drives the base 301 to rotate in the mixing device body 1, thereby driving the scraper 305 to rotate through the first rotating rod 303, so as to achieve stirring and mixing of the raw materials in the mixing device body 1. In addition, since the output end of the cylinder 2 is rotatably matched with the top of the support column 302 through the bearing and the scraper 305 is also connected to the support column 302 through the second rotating rod 304, the support column 302 can also rotate synchronously, ensuring that the materials in the mixing device body 1 are evenly mixed, accelerating the progress of the chemical reaction, improving the production efficiency of p-phenylenediamine, and reducing the time required for the reaction.

[0029] When it is necessary to clean the residue on the inner wall of the mixing device body 1. Specifically, after the p-phenylenediamine after production is discharged through the discharge pipe 6, the cleaning water is introduced into the interior of the mixing device body 1, the cylinder 2 is started, and the support column 302 is driven to descend by the cylinder 2, thereby driving the second connecting rod 304 to rotate, so that the scraper 305 expands toward the inner wall of the mixing device body 1, so that the cleaning pad 307 is attached to the inner wall of the mixing device body 1, and then the servo motor 4 drives the scraper 305 to rotate, so that the mixing device body 1 can be cleaned, which can not only completely remove the residue in the container, but also save the tedious steps of disassembling the container for cleaning, save the time and workload required for cleaning, improve the cleaning effect, avoid the residual chemical substances from damaging the mixing device body 1, and extend the service life of the mixing device body 1.

[0030] like Figure 4 As shown, in order to improve the sealing performance of the feed end, a feed sealing assembly 5 is provided at the top of the mixing device body 1. Specifically, the feed sealing assembly 5 includes a feed pipe 501 provided at the top of the mixing device body 1, a rubber ring 502 is provided at the top of the feed pipe 501, and a top cover 503 detachably matched with the feed pipe 501, a sealing ring 504 matched with the outer wall of the feed pipe 501 is provided at the bottom of the top cover 503, and a sealing ring 505 abutting against the rubber ring 502 is provided inside the top cover 503. When in use, when the sealing ring 504 is matched with the outer wall of the feed pipe 501, the rubber ring 502 and the sealing ring 505 abut against each other, forming a double sealing effect, which can effectively prevent the leakage of raw materials during the reaction process, and at the same time, can prevent external impurities from entering the interior of the mixing device body 1.

[0031] Finally, it should be noted that the above-described embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A mixing device for producing p-phenylenediamine, comprising a mixing device body (1), characterized in that: The mixing device body (1) is provided with a working component (3) for stirring and cleaning the inside thereof, the top of the mixing device body (1) is provided with a feed sealing component (5), and the bottom of the mixing device body (1) is provided with a discharge pipe (6); The working assembly (3) comprises a servo motor (4) fixedly mounted on the bottom of the mixing device body (1); the output end of the servo motor (4) extends to the bottom of the mixing device body (1) and is fixedly connected to a base (301); a support column (302) is slidably connected to the base (301); a driving device for driving the support column (302) to rise and fall is mounted on the top of the mixing device body (1); and at least one set of rotating components capable of driving the scraper (305) to expand or contract under the action of the driving device is arranged on the base (301) and the support column (302).

2. A mixing device for producing p-phenylenediamine according to claim 1, characterized in that: The rotating components are provided in four groups and are symmetrically arranged on the periphery of the base (301) or the supporting column (302).

3. A mixing device for producing p-phenylenediamine according to claim 2, characterized in that: The rotating assembly comprises a first rotating rod (303) and a second rotating rod (304) arranged in a cross pattern; The two ends of the first rotating rod (303) are rotatably connected to the base (301) and the scraper (305) through a hinge seat (306), and the two ends of the second rotating rod (304) are rotatably connected to the support column (302) and the scraper (305) through a hinge seat (306).

4. A mixing device for producing p-phenylenediamine according to claim 1 or 3, characterized in that: A cleaning pad (307) is fixedly mounted on the outer wall of the scraper (305).

5. A mixing device for producing p-phenylenediamine according to claim 1, characterized in that: The driving device comprises a cylinder (2) mounted on the top of the mixing device body (1); the output end of the cylinder (2) passes through the top of the mixing device body (1) and is fixedly connected to the top of the support column (302) via a bearing seat; and the output end of the cylinder (2) is rotatably matched with the support column (302) via a bearing.

6. A mixing device for producing p-phenylenediamine according to claim 1, characterized in that: The feed sealing assembly (5) comprises a feed pipe (501) arranged at the top of the mixing device body (1), and a rubber ring (502) is provided at the top of the feed pipe (501).

7. A mixing device for producing p-phenylenediamine according to claim 5, characterized in that: The feed sealing assembly (5) further comprises a top cover (503) detachably matched with the feed pipe (501), a sealing ring (504) matched with the outer wall of the feed pipe (501) is provided at the bottom of the top cover (503), and a sealing ring (505) abutting against the rubber ring (502) is provided inside the top cover (503).

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