Aluminum hydroxide pug drying device in MEA and DEA synthesis

Abstract

The utility model discloses an aluminum hydroxide pug drying device in MEA and DEA synthesis, which comprises a drying box main body and a conveyor, a chain type track is installed on the vertical inner wall of one side of the drying box main body, and the chain type track comprises four chain gears rotatably installed on the drying box main body. The outer surfaces of the four chain gears are meshed with the same chain, a material rake head is installed on the chain, the conveyor is horizontally arranged and penetrates through the drying box body, and a material tray is arranged on the upper surface of the conveyor and located below the material rake head. Compared with the prior art, the chain type track is arranged in the drying box main body, and the material rake head is arranged on the chain type track, so that the drying box can be well and intermittently matched with a material tray on a conveyor, and the material rake head can be used for continuously turning and raking materials and stirring and dispersing the materials in the material tray; and the drying efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of chemical equipment, concretely to an aluminium hydroxide mud drying device in MEA and DEA synthesis. BACKGROUND

[0002] 2-methyl-6-ethyl aniline (abbreviation MEA) and 2,6-diethyl aniline (abbreviation DEA) are important fine chemical organic synthesis intermediates, which can be widely used in manufacturing various fine chemical products such as pesticides, dyes, medicines and spices.

[0003] DEA and MEA are similar in chemical structure, especially in the field of pesticides, which play a key role, especially as an important intermediate for the production of herbicides acetochlor and butachlor. These herbicides are widely used in agriculture to control weeds in farmland, protect crops from the competition of weeds, and thus improve crop yield and quality. In addition, DEA can also replace tetraethyl aluminum as a gasoline antiknock agent, and has applications in rubber additives and petrochemical fields.

[0004] Currently, MEA and DEA are mostly produced by the synthesis technology of o-alkylation of o-toluidine and aniline with ethylene under the action of a catalyst in the industry. According to the process flow, during the hydrolysis process, aluminium alkyl is decomposed to produce aluminium hydroxide slurry, which needs to be treated and recycled.

[0005] After the aluminium hydroxide slurry is pressed into a filter cake, the cake has large viscosity and is difficult to dry. The traditional kiln or vacuum rake dryer has low drying efficiency and poor effect. Therefore, in order to improve the drying efficiency and effect, a suitable device and operation process need to be designed. The utility model provides an aluminium hydroxide mud drying device in MEA and DEA synthesis. UTILITY MODEL CONTENT

[0006] The utility model aims at providing an aluminium hydroxide mud drying device in MEA and DEA synthesis to solve the problems in the above background technology.

[0007] To achieve the above purpose, the utility model provides the following technical scheme: an aluminium hydroxide mud drying device in MEA and DEA synthesis, which comprises a drying box main body and a conveyor. A chain track is installed on the vertical inner wall of one side of the drying box main body. The chain track comprises four chain gears rotatably installed on the drying box main body. The outer surfaces of the four chain gears are engaged with the same chain. A material rake head is installed on the chain. The conveyor is horizontally arranged and penetrates through the drying box main body. A material tray is arranged on the upper surface of the conveyor and located below the material rake head. An electric heater is fixedly installed at the inner top of the drying box main body.

[0008] As a preferred technical solution of this utility model, a connecting block is fixedly installed on one side of the chain, and a mounting frame is fixedly connected to the side of the connecting block away from the chain. The mounting frame and the material rake head are fixedly connected.

[0009] As a preferred technical solution of this utility model, the bottom outer surface of the material rake head is provided with rake teeth.

[0010] In a preferred embodiment of this invention, one of the chain gears is driven to rotate by a drive motor, and the drive motor is fixedly mounted on the drying oven body.

[0011] As a preferred technical solution of this utility model, an air extraction port is fixedly installed on the top of the drying oven body.

[0012] As a preferred technical solution of this utility model, the electric heater is an infrared heater, and the electric heater is provided with multiple infrared heating tubes.

[0013] As a preferred technical solution of this utility model, the inner surface of the conveyor is provided with a plurality of conveying rollers driven by a drive source to rotate, the plurality of conveying rollers are arranged horizontally and evenly, and the bottom of the conveyor is provided with a base.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This utility model discloses a drying device for aluminum hydroxide sludge in the synthesis of MEA and DEA. By setting a chain track inside the drying chamber and installing material rakes on the chain track, it can work well with the material trays on the conveyor. The material rakes can continuously turn and rake the material, stirring and dispersing the material in the material trays, which helps to improve drying efficiency.

[0016] Other features and advantages of this invention will be described in detail in the following specific embodiments. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the main structure of the drying oven of this utility model;

[0019] Figure 3 For the present utility model Figure 2 Enlarged structural diagram of A in the middle;

[0020] In the diagram: 1. Drying oven body; 2. Chain track; 3. Material tray; 4. Conveyor; 5. Base; 6. Material rake head; 7. Exhaust port; 8. Electric heater; 9. Conveying roller; 10. Chain gear; 11. Chain; 12. Connecting block; 13. Mounting frame; 14. Anti-slip mat; 15. Drive motor. Detailed Implementation

[0021] 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.

[0022] In the description of this utility model, it should be noted that the terms "vertical", "up", "down", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] Please see Figures 1-3In this embodiment, a drying device for aluminum hydroxide sludge in the synthesis of MEA and DEA is provided, including a drying chamber body 1 and a conveyor 4. Multiple conveying rollers 9, driven by a drive source, are arranged horizontally and evenly on the inner surface of the conveyor 4. A base 5 is provided at the bottom of the conveyor 4. A chain track 2 is installed on the vertical inner wall of one side of the drying chamber body 1. The chain track 2 includes four chain gears 10 rotatably mounted on the drying chamber body 1. The outer surfaces of the four chain gears 10 are meshed with the same chain 11. A material rake head 6 is installed on the chain 11. Specifically, one side of the chain 11... A connecting block 12 is fixedly installed, and a mounting frame 13 is fixedly connected to the side of the connecting block 12 away from the chain 11. The mounting frame 13 is fixedly connected to the material rake head 6. One of the chain gears 10 is driven to rotate by a drive motor 15, and the drive motor 15 is fixedly installed on the drying chamber body 1. The conveyor 4 is arranged horizontally and passes through the drying chamber body 1. A material tray 3 is provided on the upper surface of the conveyor 4, and the material tray 3 is located below the material rake head 6. An electric heater 8 is fixedly installed at the top of the interior of the drying chamber body 1. The electric heater 8 is an infrared heater, and multiple infrared heating tubes are provided inside the electric heater 8.

[0025] In this embodiment, the bottom outer surface of the material rake head 6 is provided with rake teeth 14. It should be noted that when the rake teeth 14 of the material rake head 6 are moved by the chain 11 to a position close to the material tray 3, the connecting block 12, the mounting frame 13, and the material rake head 6 are all located at the lower level of the chain 11. The rake teeth 14 can be used to rake the material. After the rakeing is completed, the drive motor 15 drives the chain 11 to rotate continuously. The rotating chain 11 can drive the connecting block 12, the mounting frame 13, and the material rake head 6 to continue to move, so that the connecting block 12, the mounting frame 13, and the material rake head 6 can move after passing through a chain. Following the movement of the gear 10, the chain 11 changes its orientation. When the material rake head 6 moves to the upper chain 11 of the chain track 2, the rake teeth 14 of the material rake head 6 are facing upwards, thus freeing up the conveying space for the subsequent material tray 3 below, allowing the material tray 3 to be turned and rakeed to enter properly. Then, the material rake head 6 continues to move to the lower chain 11, so that the rake teeth 14 are facing downwards, thus continuously turning and rakeing the material, stirring and dispersing the material in the material tray 3, which is beneficial to improving drying efficiency.

[0026] In this embodiment, an exhaust port 7 is fixedly installed on the top of the drying chamber body 1. The exhaust port 7 is used to connect to an exhaust fan, which can extract the moisture during drying.

[0027] In use, materials are fed into material trays 3, which are placed on conveyor tracks 4. The material trays 3 are horizontally conveyed by conveyor rollers 9 on conveyor 4, allowing multiple material trays to be sent into the drying chamber body 1 for drying. An electric heater 8, composed of multiple infrared heating tubes, is installed inside the drying chamber body 1 to control the temperature within the drying chamber body 1 at 120-200℃. After drying, the next set of trays is pushed out of the drying chamber for unloading and collection.

[0028] In summary, this embodiment, by setting a chain track 2 inside the drying chamber body 1 and setting a material rake head 6 on the chain track 2, can intermittently cooperate well with the material tray 3 on the conveyor 4. The material rake head 6 can continuously tumble and rake the material, stirring and dispersing the material in the material tray 3, which is beneficial to improving drying efficiency.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A drying device for aluminum hydroxide sludge in the synthesis of MEA and DEA, characterized in that, The equipment includes a drying chamber body (1) and a conveyor (4). A chain track (2) is installed on the vertical inner wall of one side of the drying chamber body (1). The chain track (2) includes four chain gears (10) rotatably mounted on the drying chamber body (1). The outer surfaces of the four chain gears (10) are meshed with the same chain (11). A material rake head (6) is installed on the chain (11). The conveyor (4) is arranged horizontally and passes through the drying chamber body (1). A material tray (3) is provided on the upper surface of the conveyor (4) and the material tray (3) is located below the material rake head (6). An electric heater (8) is fixedly installed at the top of the interior of the drying chamber body (1).

2. The aluminum hydroxide sludge drying device for MEA and DEA synthesis according to claim 1, characterized in that, A connecting block (12) is fixedly installed on one side of the chain (11), and a mounting frame (13) is fixedly connected to the side of the connecting block (12) away from the chain (11). The mounting frame (13) and the material rake head (6) are fixedly connected.

3. The aluminum hydroxide sludge drying device for MEA and DEA synthesis according to claim 1, characterized in that, The bottom outer surface of the material rake head (6) is provided with rake teeth (14).

4. The device for drying aluminum hydroxide sludge in the synthesis of MEA and DEA according to claim 1, characterized in that, One of the chain gears (10) is driven to rotate by a drive motor (15), and the drive motor (15) is fixedly mounted on the drying oven body (1).

5. The aluminum hydroxide sludge drying device for MEA and DEA synthesis according to claim 1, characterized in that, An air extraction port (7) is fixedly installed on the top of the main body (1) of the drying oven.

6. The aluminum hydroxide sludge drying device for MEA and DEA synthesis according to claim 1, characterized in that, The electric heater (8) is an infrared heater, and multiple infrared heating tubes are installed inside the electric heater (8).

7. The drying apparatus for aluminum hydroxide sludge in the synthesis of MEA and DEA according to claim 1, characterized in that, The inner surface of the conveyor (4) is provided with a plurality of conveying rollers (9) driven by a drive source to rotate. The plurality of conveying rollers (9) are arranged horizontally and evenly. The bottom of the conveyor (4) is provided with a base (5).

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