Diethyltoluene diamine raw material proportioning device

Abstract

This utility model discloses a raw material proportioning device for the production of diethyltoluene diamine, relating to the field of diethyltoluene diamine. It includes a main mixing tank and a first sealing cover installed on the main mixing tank. A discharge port is located at the bottom of the main mixing tank. A premixing tank is located on the first sealing cover, and a filter cylinder is installed in the premixing tank. The filter cylinder and the premixing tank form a separate proportioning space. By setting up an independent premixing tank and a liftable filter cylinder, when temporary feeding is required, the new raw material is first premixed in the premixing tank to form a uniform mixture before being fed into the main mixing tank all at once. This avoids the problem of excessively high local concentrations and uneven mixing caused by directly adding new raw materials to the main mixing tank, thus ensuring the stability and consistency of the reaction system concentration within the main mixing tank and significantly improving the quality of the final product.

Description

Technical Field

[0001] This utility model relates to the field of diethyltoluenediamine, and in particular to a raw material proportioning device for the production of diethyltoluenediamine. Background Technology

[0002] In the production of diethyltoluene diamine, the precise proportioning and thorough mixing of various raw materials are key steps to ensure the quality of the final product and the efficiency of the reaction.

[0003] Traditional production equipment typically uses a single mixing tank for mixing and proportioning raw materials. However, when a certain raw material needs to be added temporarily during the production process, adding it directly to the main mixing tank will result in an excessively high local concentration of the newly added raw material, making it difficult to instantly and evenly blend with the original mixture in the tank. This causes uneven concentration of the mixture in the short term, affecting the stability of the reaction and the uniformity of the product. Utility Model Content

[0004] The purpose of this invention is to provide a raw material proportioning device for the production of diethyltoluene diamine, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a raw material proportioning device for the production of diethyltoluene diamine, comprising a main mixing tank and a first sealing cover installed on the main mixing tank. A discharge port is provided below the main mixing tank. A premixing tank is provided on the first sealing cover. A filter cylinder is provided in the premixing tank. The filter cylinder and the premixing tank form a separate proportioning space. A stirring rod is provided inside the filter cylinder. A connecting frame is fixedly connected to the top of the stirring rod. A bearing is provided in the connecting frame. The stirring rod is interference-fitted with the connecting frame through the bearing and rotatably connected to the filter cylinder. A scraper is installed on the outer periphery of the stirring rod, and the scraper is in contact with the inner wall of the filter cylinder.

[0006] Preferably, a second sealing cover is installed on the premixing tank, the second sealing cover and the premixing tank forming a sealed space, and the second sealing cover is provided with a feed inlet.

[0007] Preferably, a sealing ring is installed on the outer peripheral wall of the bottom end of the filter cartridge, and the sealing ring is in contact with the inner wall of the bottom end of the premixing tank.

[0008] Preferably, a handwheel is fixedly connected to the top of the stirring rod.

[0009] Preferably, a pull rod is fixedly connected to the top end face of the connecting frame, and the pull rod is slidably connected in the second sealing cover.

[0010] Preferably, a fixed base is fixedly connected to the second sealing cover, the pull rod is slidably connected in the fixed base, and a pin is inserted into the fixed base to limit the pull rod.

[0011] Preferably, the pull rod has multiple sets of insertion slots vertically formed, and the pin is inserted into one set of insertion slots.

[0012] The technical effects and advantages of this utility model are as follows: By setting up an independent premixing tank and a liftable filter cylinder, when temporary feeding is required, the new raw materials are first premixed in the premixing tank to form a uniform mixture before being sent to the main mixing tank all at once. This avoids the problem of excessively high local concentration and uneven mixing caused by directly adding new raw materials to the main mixing tank, thus ensuring the stability and consistency of the concentration of the reaction system in the main mixing tank, thereby significantly improving the quality of the final product. Attached Figure Description

[0013] Figure 1 This is the front view of the present utility model;

[0014] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 3 This is a cross-sectional view of the present invention;

[0016] Figure 4 This is a schematic diagram of the filter cartridge connection of this utility model.

[0017] In the diagram: 1. Main mixing tank; 11. First sealing cover; 12. Discharge port; 2. Premixing tank; 21. Second sealing cover; 22. Feed inlet; 3. Filter cylinder; 31. Stirring rod; 32. Scraper; 33. Connecting frame; 4. Pull rod; 41. Fixed base; 42. Insertion groove; 43. Pin. Detailed Implementation

[0018] 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.

[0019] This utility model provides, for example Figures 1-4The diethyltoluene diamine production raw material proportioning device shown includes a main mixing tank 1 and a first sealing cover 11 installed on the main mixing tank 1. A discharge port 12 is provided at the bottom of the main mixing tank 1. A premixing tank 2 is provided on the first sealing cover 11. A filter cylinder 3 is provided in the premixing tank 2. The filter cylinder 3 and the premixing tank 2 form a separate proportioning space. A stirring rod 31 is provided in the filter cylinder 3. A connecting frame 33 is fixedly connected to the top of the stirring rod 31. A bearing is provided in the connecting frame 33. The stirring rod 31 is interference-fitted with the connecting frame 33 through the bearing and rotatably connected to the filter cylinder 3. A scraper 32 is installed on the outer periphery of the stirring rod 31. The scraper 32 is in contact with the inner wall of the filter cylinder 3.

[0020] When temporary material needs to be added during the production process, the filter cylinder 3 is controlled to be in the premixing tank 2, and the raw materials are premixed in the premixing tank 2. Under the rotation of the stirring rod 31, the scraper 32 is controlled to filter the impurities on the filter cylinder 3, and at the same time, under the rotation of the scraper 32, the raw materials are premixed.

[0021] By premixing the raw materials, the filter cylinder 3 is moved down so that it enters the main mixing tank 1. At this time, the raw materials added into the main mixing tank 1 during the production process are mixed liquids. This avoids adding raw materials into the main mixing tank 1, which would cause the raw materials to remix with the mixed liquid in the main mixing tank 1, affecting the mixing effect and causing uneven concentration of the mixed liquid in the main mixing tank 1 in a short time.

[0022] By setting up an independent premixing tank 2 and a liftable filter cylinder 3, when temporary feeding is required, the new raw materials are first premixed in the premixing tank 2 to form a uniform mixture before being sent to the main mixing tank 1 all at once. This avoids the problem of excessively high local concentration and uneven mixing caused by directly adding new raw materials to the main mixing tank 1, thus improving the stability and consistency of the concentration of the reaction system in the main mixing tank 1 and significantly improving the quality of the final product.

[0023] A second sealing cover 21 is installed on the premixing tank 2, and the second sealing cover 21 forms a sealed space with the premixing tank 2. A feed inlet 22 is provided on the second sealing cover 21.

[0024] Raw materials are added to the premix tank 2 through the feed inlet 22. The second sealing cover 21 and the feed inlet 22 form a sealed space to prevent the raw materials from overflowing.

[0025] When the initial raw material proportioning is carried out, the filter cylinder 3 is moved downward by sliding the pull rod 4, so that the filter cylinder 3 is in the main mixing tank 1. At this time, the raw material enters the main mixing tank 1 directly through the filter cylinder 3, and the impurities are filtered out under the action of the filter cylinder 3.

[0026] When temporary material needs to be added during the production process, the filter cylinder 3 is controlled to be in the premixing tank 2 by sliding the pull rod 4. The raw materials are premixed in the premixing tank 2. Under the rotation of the stirring rod 31, the scraper 32 is controlled to filter the impurities on the filter cylinder 3. At the same time, under the rotation of the scraper 32, the raw materials are premixed. After the mixing is completed, the filter cylinder 3 is moved into the main mixing tank 1 to transport the mixed liquid to the main mixing tank 1, so as to avoid affecting the concentration of the mixed liquid in the main mixing tank 1.

[0027] Example 1: A sealing ring is installed on the outer peripheral wall of the bottom end of the filter cylinder 3, and the sealing ring is in contact with the inner wall of the bottom end of the premixing tank 2. The sealing ring is used to seal the bottom ends of the premixing tank 2 and the filter cylinder 3, effectively preventing raw material leakage into the main mixing tank 1 during premixing.

[0028] A handwheel is fixedly connected to the top of the stirring rod 31. The handwheel allows for easy control of the rotation of the stirring rod 31. The rotation of the stirring rod 31 causes the scraper 32 to rotate within the filter cylinder 3, thus mixing the raw materials in the filter cylinder 3.

[0029] At the same time, under the action of scraper 32, the impurities on the inner wall of filter cylinder 3 are scraped off. By loosening the second sealing cover 21 and the premixing tank 2, the second sealing cover 21 can slide along the pull rod 4, so that the top of filter cylinder 3 is exposed, and the impurities in filter cylinder 3 are cleaned.

[0030] Example 2: A pull rod 4 is fixedly connected to the top end face of the connecting frame 33, and the pull rod 4 is slidably connected in the second sealing cover 21.

[0031] By pulling the lever 4, the filter cylinder 3 is moved to slide in the premixing tank 2, and the position of the filter cylinder 3 in the main mixing tank 1 or the premixing tank 2 is adjusted.

[0032] A fixed base 41 is fixedly connected to the second sealing cover 21. The pull rod 4 is slidably connected in the fixed base 41. A pin 43 is inserted into the fixed base 41. The pin 43 is used to limit the pull rod 4.

[0033] Multiple sets of insertion slots 42 are vertically formed on the pull rod 4, and the pin 43 is inserted into one of the insertion slots 42.

[0034] By inserting the pin 43 into the insertion slot 42, the pull rod 4 can be fixed in the pin 43, thereby limiting the filter cylinder 3 and ensuring the stability of the filter cylinder 3. When it is necessary to adjust the position of the filter cylinder 3, by pulling out the pin 43, the pull rod 4 can slide in the fixed seat 41, controlling the filter cylinder 3 to move up and down.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A raw material proportioning device for the production of diethyltoluene diamine, comprising a main mixing tank (1) and a first sealing cover (11) installed on the main mixing tank (1), wherein a discharge port (12) is provided below the main mixing tank (1), characterized in that, A premixing tank (2) is provided on the first sealing cover (11). A filter cylinder (3) is provided in the premixing tank (2). The filter cylinder (3) and the premixing tank (2) form a separate mixing space. A stirring rod (31) is provided in the filter cylinder (3). A connecting frame (33) is fixedly connected to the top of the stirring rod (31). A bearing is provided in the connecting frame (33). The stirring rod (31) is interference-fitted with the connecting frame (33) through the bearing and rotatably connected to the filter cylinder (3). A scraper (32) is installed on the outer periphery of the stirring rod (31). The scraper (32) is in contact with the inner wall of the filter cylinder (3).

2. The raw material proportioning device for the production of diethyltoluenediamine according to claim 1, characterized in that, The premixing tank (2) is equipped with a second sealing cover (21), which forms a sealed space with the premixing tank (2). The second sealing cover (21) is provided with a feed inlet (22).

3. The raw material proportioning device for the production of diethyltoluenediamine according to claim 1, characterized in that, A sealing ring is installed on the outer peripheral wall of the bottom end of the filter cylinder (3), and the sealing ring is in contact with the inner wall of the bottom end of the premix tank (2).

4. The raw material proportioning device for the production of diethyltoluenediamine according to claim 1, characterized in that, A handwheel is fixedly connected to the top of the stirring rod (31).

5. The raw material proportioning device for the production of diethyltoluenediamine according to claim 1, characterized in that, A pull rod (4) is fixedly connected to the top end face of the connecting frame (33), and the pull rod (4) is slidably connected in the second sealing cover (21).

6. The raw material proportioning device for the production of diethyltoluenediamine according to claim 5, characterized in that, A fixed seat (41) is fixedly connected to the second sealing cover (21), and the pull rod (4) is slidably connected in the fixed seat (41). A pin (43) is inserted into the fixed seat (41), and the pin (43) is used to limit the pull rod (4).

7. The raw material proportioning device for the production of diethyltoluenediamine according to claim 6, characterized in that, The pull rod (4) has multiple sets of insertion slots (42) vertically formed on it, and the pin (43) is inserted into one of the insertion slots (42).

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