Automatic feeding device for dinonyl naphthalene product production

Abstract

The utility model discloses an automatic feeding device for dinonyl naphthalene product production, which comprises a feeding hopper mounted at the top of a reaction kettle and a temperature sensor mounted on the side wall of the reaction kettle, an upper cover is movably mounted at the top of the feeding hopper, and a feeding pipe is mounted at the bottom of the feeding hopper. Two meshed tooth rollers are horizontally mounted in the feeding pipe, one tooth roller is in transmission connection with a driving motor fixedly mounted outside the feeding pipe, and the bottom of the feeding pipe is connected with a feeding pipe at the top of the reaction kettle. The controller controls the driving motor to drive the tooth roller to rotate slowly according to the temperature in the reaction kettle to finish slow feeding of the catalyst anhydrous aluminum trichloride, so that the effect of timely and appropriate feeding of the catalyst based on the reaction temperature is achieved, rapid temperature rise of the reaction kettle is avoided, and a reaction system is enabled to catalyze stably; the product stability and the reaction continuity are improved, a good stabilizing effect on the final product quality is achieved, and the damage to the reaction kettle and the safety risk are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical processing equipment, in particular to an automatic feeding device for the production of dinonylnaphthalene products. Background Art

[0002] In the production process of dinonylnaphthalene, our existing solution is to put refined naphthalene into mononylnaphthalene, stir evenly, then put in anhydrous aluminum trichloride, and then gradually dropwise add nonene. Anhydrous aluminum trichloride is easy to volatilize strong acidic gases with strong corrosive properties. The gas hydrochloric acid volatilized from anhydrous aluminum trichloride will burn the respiratory tract of the operator and also corrode the surrounding steel equipment. Anhydrous aluminum trichloride is packed in plastic drums or ton bags, which is very inconvenient to use, bringing harm to the physical health of the operator. Corroding the equipment will also cause economic losses to the enterprise. Moreover, when feeding, since aluminum trichloride is a catalyst and is directly put in through a plastic drum or ton bag, the disadvantage is that the sudden increase in the feeding amount will cause the reactants to react sharply, resulting in a rapid rise in the temperature inside the reaction kettle. Normally, cooling water is used to cool the reaction kettle, but this will still bring risks to the reaction process, and too high a temperature will cause nonene to self-polymerize, reducing the yield of the reaction target product.

[0003] To sum up, the alkylation reaction involving anhydrous aluminum trichloride needs to be controlled gently and sealed, which can protect the physical health of the operator, protect personal safety, reduce corrosion, protect the equipment, and improve the safety and economic benefits of the enterprise. In this context, the feeding device for anhydrous aluminum trichloride has been improved. Summary of the Utility Model

[0004] Aiming at the deficiencies of the existing technology, the utility model provides an automatic feeding device for the production of dinonylnaphthalene products, which is used to achieve the purpose of safely, automatically and appropriately feeding anhydrous aluminum trichloride during the production process of dinonylnaphthalene products.

[0005] To solve the above technical problems, the utility model provides the following technical solutions:

[0006] An automatic feeding device for the production of dinonylnaphthalene products includes a feeding hopper installed on the top of the reaction kettle and a temperature sensor installed on the side wall of the reaction kettle. The top of the feeding hopper is movably installed with an upper cover, and the upper cover is locked and fixed on the feeding hopper through a locking mechanism. The bottom of the feeding hopper is installed with a feeding pipe. Two mutually meshing toothed rollers are horizontally installed inside the feeding pipe. One of the toothed rollers is in transmission connection with a driving motor fixedly installed outside the feeding pipe. The bottom of the feeding pipe is connected to the feeding pipe on the top of the reaction kettle. The temperature sensor is in signal connection with a controller, and the controller is in signal connection with the driving motor.

[0007] Preferably, hinge seats I and II are respectively arranged on both sides of the feeding hopper. A pressing rod is movably connected to the center of the top of the upper cover through hinge seat III. One end of the pressing rod is movably hinged to hinge seat I, and the locking mechanism is arranged at the other end of the pressing rod.

[0008] Preferably, the locking mechanism includes a movable screw rod movably hinged to hinge seat II and movably clamped in the slot at the end of the pressing rod, and a plum blossom nut threadedly connected to the movable screw rod. The plum blossom nut supports on the upper surface of the pressing rod.

[0009] Preferably, a sealing ring is arranged between the circumferential inner wall of the upper cover and the feeding hopper.

[0010] Preferably, the feeding pipe has a box-shaped structure with flanges provided at the top and bottom. A guiding plate is installed inside the feeding pipe between the toothed roller and the lower flange, and a sealing lining in contact with the edge of the toothed roller is arranged on the inner wall of the feeding pipe.

[0011] Compared with the prior art, the present utility model has the following beneficial effects:

[0012] By arranging a toothed roller in the feeding pipe below the feeding hopper, the present utility model drives the toothed roller to rotate through a driving motor to slowly put in the catalyst anhydrous aluminum trichloride, avoiding the rapid temperature rise of the reaction kettle, enabling the reaction system to be stably catalyzed, improving the product stability and the continuity of the reaction, having a good stabilizing effect on the quality of the final product, and avoiding damage to the reaction kettle and safety risks. At the same time, the controller controls the rotation speed of the toothed roller according to the temperature in the reaction kettle, achieving the effect of timely and appropriately putting in the catalyst based on the reaction temperature. During the reaction process, no manual intervention is required, protecting personal safety, and realizing the purpose of safely, automatically, and appropriately putting in anhydrous aluminum trichloride during the production process of dinonylnaphthalene products.

[0013] The present utility model realizes sealing by arranging an upper cover above the feeding hopper, reducing the volatilization of strongly corrosive gases of anhydrous aluminum trichloride, effectively reducing the corrosion of surrounding equipment in the operation area, and at the same time protecting the personal safety of the staff in the operation workshop. Description of the Drawings

[0014] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0015] Figure 2 is a schematic diagram of the structure of the feeding hopper of the present utility model;

[0016] Figure 3 is a top view of the upper cover of the present utility model;

[0017] Figure 4 is a three-dimensional view of the feeding pipe of the present utility model;

[0018] Figure 5It is the top view of the corresponding position of the feeding pipe of the present utility model;

[0019] Figure 6 It is the side sectional view of the feeding pipe of the present utility model;

[0020] Figure 7 It is the system schematic diagram of the present utility model.

[0021] In the figure: 1, reaction kettle; 101, feed pipe; 2, feeding hopper; 201, hinge seat 1; 202, hinge seat 2; 3, temperature sensor; 4, upper cover; 401, hinge seat 3; 402, sealing ring; 5, locking mechanism; 501, movable screw; 502, plum blossom nut; 6, feeding pipe; 601, sealing lining; 7, toothed roller; 8, material guiding plate; 9, driving motor; 10, controller; 11, pressure bar; 1101, clamping groove. Specific implementation manner

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] As Figure 1-7 shown, the present utility model provides a technical solution: an automatic feeding device for the production of dinonylnaphthalene products, including a feeding hopper 2 installed on the top of the reaction kettle 1 and a temperature sensor 3 installed on the side wall of the reaction kettle 1. The top of the feeding hopper 2 is movably installed with an upper cover 4, and a sealing ring 402 is provided between the circumferential inner wall of the upper cover 4 and the feeding hopper 2;

[0024] On both sides of the feeding hopper 2, a hinge seat 1 201 and a hinge seat 2 202 are respectively provided. The center of the top of the upper cover 4 is movably connected with a pressure bar 11 through a hinge seat 3 401. One end of the pressure bar 11 is movably hinged to the hinge seat 1 201, and the upper cover 4 is locked and fixed on the feeding hopper 2 through a locking mechanism 5. The locking mechanism 5 is arranged at the other end of the pressure bar 11;

[0025] The locking mechanism 5 includes a movable screw 501 movably hinged to the hinge seat 2 202 and movably clamped in the clamping groove 1101 at the end of the pressure bar 11, and a plum blossom nut 502 threadedly connected to the movable screw 501. The plum blossom nut 502 supports on the upper surface of the pressure bar 11;

[0026] A feed pipe 6 is installed at the bottom of the feed hopper 2. Two mutually meshing toothed rollers 7 are horizontally installed inside the feed pipe 6. The feed pipe 6 is of a box structure with flanges provided at the top and bottom. A material guiding plate 8 is installed inside the feed pipe 6 between the toothed rollers 7 and the lower flange. A sealing lining 601 in contact with the edge of the toothed roller 7 is provided on the inner wall of the feed pipe 6.

[0027] One of the toothed rollers 7 is in transmission connection with a driving motor 9 fixedly installed outside the feed pipe 6. The bottom of the feed pipe 6 is connected to the feed pipe 101 at the top of the reaction kettle 1. The temperature sensor 3 is in signal connection with the controller 10, and the controller 10 is in signal connection with the driving motor 9.

[0028] Working principle:

[0029] The temperature sensor 3 monitors the temperature inside the reaction kettle 1 in real time and transmits the data to the controller 10. The controller 10 adjusts and controls the rotation speed of the driving motor 9 to drive the toothed rollers 7 in real time according to the relationship between the preset temperature, the amount of catalyst, and the rotation speed of the toothed rollers 7. The two toothed rollers 7 rotate in opposite directions around the roller axis to drive the catalyst to be slowly dispersed and dropped downward from both sides, achieving the effect of timely and appropriate dosing of the catalyst based on the reaction temperature and improving the safety of the production and processing reaction process.

[0030] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0031] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic feeding device for producing dinonylnaphthalene products, comprising a feeding hopper (2) installed on the top of a reactor (1) and a temperature sensor (3) installed on the side wall of the reactor (1), characterized in that: An upper cover (4) is movably mounted on the top of the feeding hopper (2), and the upper cover (4) is locked and fixed on the feeding hopper (2) by a locking mechanism (5). A feeding pipe (6) is mounted on the bottom of the feeding hopper (2), and two mutually meshing toothed rollers (7) are horizontally mounted inside the feeding pipe (6), one of the toothed rollers (7) being transmission-connected to a driving motor (9) fixedly mounted outside the feeding pipe (6), and the bottom of the feeding pipe (6) is connected to a feeding pipe (101) at the top of the reaction kettle (1); the temperature sensor (3) is signal-connected to a controller (10), and the controller (10) is signal-connected to the driving motor (9).

2. The automatic feeding device for producing dinonylnaphthalene products according to claim 1, characterized in that: A hinge seat 1 (201) and a hinge seat 2 (202) are respectively arranged on both sides of the feeding hopper (2); a pressure rod (11) is movably connected to the center of the top of the upper cover (4) via a hinge seat 3 (401); one end of the pressure rod (11) is movably hinged to the hinge seat 1 (201); and the locking mechanism (5) is arranged at the other end of the pressure rod (11).

3. The automatic feeding device for producing dinonylnaphthalene products according to claim 2, characterized in that: The locking mechanism (5) comprises a movable screw rod (501) movably hinged on the second hinge seat (202) and movably clamped in a clamping groove (1101) at the end of the pressure rod (11), and a plum nut (502) threadedly connected to the movable screw rod (501), and the plum nut (502) is supported on the upper surface of the pressure rod (11).

4. The automatic feeding device for producing dinonylnaphthalene products according to claim 2, characterized in that: A sealing ring (402) is provided between the circumferential inner wall of the upper cover (4) and the feeding hopper (2).

5. The automatic feeding device for producing dinonylnaphthalene products according to claim 1, characterized in that: The feeding pipe (6) is a box-shaped structure with flanges arranged at the top and bottom, a material guide plate (8) is installed inside the feeding pipe (6) and is located between the gear roller (7) and the flange below, and a sealing lining (601) in contact with the edge of the gear roller (7) is arranged on the inner wall of the feeding pipe (6).

Images