Dehydration device for isooctyl nitrate production

Abstract

The utility model relates to the technical field of isooctyl nitrate production, in particular to a dehydration device for isooctyl nitrate production, which comprises a rectangular shell, a placing plate and a stirrer arranged in the shell, a dehydration cylinder arranged on the placing plate, and lifting mechanisms arranged on two sides of the inner wall of the shell, the placing plate is horizontally and slidably arranged in the shell, the stirrer is vertically and slidably arranged in the shell, and the lifting mechanism is in transmission connection with the stirrer to drive the stirrer to vertically move; by arranging the lifting mechanism and the stirrer, the stirrer can vertically move and extend into the dehydration barrel for stirring, it is ensured that isooctyl nitrate and anhydrous sodium sulfate are fully mixed, the stirring efficiency is improved, and the dehydration effect is improved; in the stirring process of the stirrer, the baffle covers the upper part of the dehydration barrel, so that liquid is prevented from splashing in the stirring process, experimenters are prevented from being harmed, and the safety of experimental operation is improved; through the linkage design of the lifting mechanism and the clamping mechanism, automatic clamping of the dewatering cylinder and automatic lifting of the stirrer are achieved.

Description

Technical Field

[0001] This utility model relates to the field of isooctyl nitrate production technology, specifically a dehydration device for isooctyl nitrate production. Background Technology

[0002] Dehydration is a crucial step in the production of isooctyl nitrate, with the core objectives of promoting the forward reaction, suppressing hydrolysis side reactions, and ensuring product purity and safety. In the laboratory dehydration of isooctyl nitrate, anhydrous sodium sulfate is typically added to a beaker, stirred for 15 minutes, and finally filtered to remove the drying agent, yielding the dehydrated product. However, this method has the following problems:

[0003] 1. Low stirring efficiency makes it difficult to fully mix isooctyl nitrate and anhydrous sodium sulfate, affecting the dehydration effect;

[0004] 2. Stirring can easily cause liquid to splash, which can be harmful to laboratory personnel.

[0005] Therefore, there is an urgent need for a dehydration device that can improve stirring efficiency, prevent liquid splashing, and is easy to operate. Utility Model Content

[0006] The purpose of this invention is to provide a dehydration device for the production of isooctyl nitrate, which solves the problems of low stirring efficiency and easy liquid splashing mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a dehydration device for the production of isooctyl nitrate, comprising a rectangular shell, a placement plate and a stirrer disposed within the shell, a dehydration cylinder disposed on the placement plate, and a lifting mechanism disposed on both sides of the inner wall of the shell; the placement plate is horizontally slidably disposed within the shell, the stirrer is vertically slidably disposed within the shell, and the lifting mechanism is drivenly connected to the stirrer to drive the stirrer to move vertically.

[0008] Furthermore, the lifting mechanism includes a rotating rod that is laterally rotatably connected to both sides of the housing, and a first screw that is vertically rotatably connected to both sides of the upper part of the housing; racks are connected to both sides of the upper part of the placement plate; the rotating rod is provided with a first gear and a first bevel gear in sequence along its length; a second bevel gear is provided at the end of the first screw; the rack meshes with the first gear; and the first bevel gear and the second bevel gear mesh.

[0009] Furthermore, the stirrer includes a baffle plate that is threadedly connected to the first screw via an L-shaped plate, and a motor mounted on the baffle plate; the motor output shaft passes through the baffle plate and is connected to a stirring blade, and a limiting plate that slides and engages with the inner wall of the housing is connected to the L-shaped plate.

[0010] Furthermore, it also includes a clamping mechanism on both sides of the housing. The clamping mechanism includes a second screw that is laterally rotatably connected to both sides of the housing, and a movable frame that is slidably engaged with the two side walls of the housing and threadedly engaged with the two second screws respectively. A second gear is connected to the second screw, and the second gear meshes with a rack. The movable frame is provided with a clamping plate at its end, and the threads of the two second screws rotate in opposite directions.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. This utility model, by setting up a lifting mechanism and a stirrer, allows the stirrer to move vertically and extend into the dehydration cylinder for stirring, ensuring that isooctyl nitrate and anhydrous sodium sulfate are fully mixed, thereby improving the stirring efficiency and thus enhancing the dehydration effect.

[0013] 2. During the stirring process, the baffle covers the upper part of the dehydration cylinder to prevent liquid from splashing, avoid harm to the experimental personnel, and improve the safety of the experimental operation.

[0014] 3. Through the linkage design of the lifting mechanism and the clamping mechanism, the automatic clamping of the dehydration cylinder and the automatic lifting of the stirrer are realized, reducing the tedious steps of manual operation and improving the automation level and ease of operation of the experiment.

[0015] 4. The agitator is threadedly connected to the first screw via an L-shaped plate, and a limiting plate is provided that slides against the inner wall of the housing to ensure the stability and reliability of the agitator during movement and to prevent shaking and deviation during the mixing process. Attached Figure Description

[0016] Figure 1 This is a structural diagram of the present utility model;

[0017] Figure 2 This is a diagram showing the working state of this utility model;

[0018] Figure 3 This is a cross-sectional view of the present invention;

[0019] Figure 4 This is a partial enlarged view of the present invention.

[0020] In the picture:

[0021] 1. Shell; 2. Placement plate; 3. Dehydration cylinder; 4. Rotating rod; 5. First screw; 6. Rack; 7. First gear; 8. First bevel gear; 9. Second bevel gear; 10. L-shaped plate; 11. Baffle; 12. Motor; 13. Stirring blade; 14. Limiting plate; 15. Second screw; 16. Moving frame; 17. Second gear; 18. Clamping plate. Detailed Implementation

[0022] Please see Figures 1 to 4 A dehydration device for the production of isooctyl nitrate comprises a rectangular shell 1, a placement plate 2 and an agitator disposed within the shell 1, a dehydration cylinder 3 disposed on the placement plate 2, a lifting mechanism disposed on both sides of the inner wall of the shell 1, and a clamping mechanism disposed on both sides of the shell 1. The placement plate 2 has a placement groove for placing the dehydration cylinder 3. A slide rail is provided on the inner wall of the shell 1, which slides horizontally with the placement plate 2. A vertical groove is provided inside the shell 1, which slides vertically with the agitator. The lifting mechanism is driven by the agitator to drive the agitator to move vertically. The clamping mechanism is also driven by the lifting mechanism to clamp the dehydration cylinder 3 and fix its position during agitation.

[0023] The lifting mechanism of this device consists of two rotating rods 4 and two first screws 5. The two rotating rods 4 are laterally connected to both sides of the interior of the housing 1 via bearings, and the two first screws 5 are vertically connected to both sides of the upper part of the housing 1 via bearings. Racks 6 are connected to both sides of the upper part of the placement plate 2. A first gear 7 and a first bevel gear 8 are sequentially installed along the length of the two rotating rods 4. Finally, a second bevel gear 9 is installed at the end of the first screw 5. The racks 6 mesh with the first gear 7, and the first bevel gear 8 meshes with the second bevel gear 9. The device also includes a stirrer. It consists of a baffle 11, a motor 12, and a stirring blade 13. The motor 12 is mounted on the baffle 11, and its output shaft passes through the baffle 11 and is connected to the stirring blade 13. L-shaped plates 10 are connected to both sides of the baffle 11, and the two L-shaped plates 10 are threadedly engaged with the two first screws 5 respectively. Limiting plates 14 that slide with the inner wall of the housing 1 are also connected to the two L-shaped plates 10 to increase the stability of the baffle 11 when it moves. The stirring blade 13 and the first screws 5 are both adapted to the dewatering cylinder 3. When the dewatering cylinder 3 moves to a certain position, the stirring blade 13 can just extend into the dewatering cylinder 3.

[0024] The clamping mechanism in this device consists of two second screws 15, two movable frames 16, and two clamping plates 18. The two second screws 15 are respectively connected to the two sides inside the housing 1 by bearings. The second screws 15 and the rotating rod 4 are located at different positions on the same plane. The threads of the two second screws 15 rotate in opposite directions, and each of the two second screws 15 is connected to a second gear 17, which meshes with the rack 6. The two movable frames 16 are respectively slidably engaged with the two side walls of the housing 1 and threadedly engaged with the two second screws 15. The two clamping plates 18 are respectively located opposite to the ends of the two movable frames 16. The shape of the clamping plates 18 is adapted to the outer wall of the dehydration cylinder 3 and one side is open. The second screws 15 and the movable frames 16 are also adapted to the dehydration cylinder 3. When the dehydration cylinder 3 moves to a certain position, the two clamping plates 18 can just clamp the dehydration cylinder 3.

[0025] The motor 12 in the device is specifically a stepper motor, which is powered by a fixed power source in the laboratory.

[0026] The working principle of this invention is as follows: When isooctyl nitrate is generated, after esterification, when dehydration is required, the mixture is first allowed to stand to separate into layers, obtaining pre-dehydrated isooctyl nitrate. After washing and deacidification, the product is placed in a dehydration cylinder 3 placed on a placement plate 2, and a certain amount of anhydrous sodium sulfate is added. Then, the placement plate 2 is pushed to move. When the placement plate 2 moves, the rack 6 drives the two second screws 15 to rotate through the second gear 17. When the two second screws 15 rotate, through the threaded engagement with the two moving frames 16, they drive the clamping plates 18 at the ends of the two moving frames 16 to move relative to each other. When the placement plate 2 is pushed to a certain position, the two clamping plates 18 clamp the outer wall of the dehydration cylinder 3. The position of the dehydration cylinder 3 is fixed at this time. At this time, the two rotating rods 4 located behind the second screw 15 rotate synchronously through the first gear 7, which in turn drives the first bevel gear 8 to rotate. Through the meshing relationship between the first bevel gear 8 and the second bevel gear 9, the two first screws 5 are driven to rotate. Since the L-shaped plate 10 is threadedly engaged with the first screw 5, when the first screw 5 rotates, it drives the baffle 11 connected to the L-shaped plate 10 to move down. When the two clamping plates 18 clamp the dehydration cylinder 3, the stirring blade 13 extends into the dehydration cylinder 3 and the baffle 11 covers the upper part of the dehydration cylinder 3. Finally, the stirring blade 13 is driven to rotate by starting the motor 12 to stir. After stirring is completed, the above steps are reversed to remove the dehydration cylinder 3 for subsequent filtration, purification and other steps.

Claims

1. A kind of dehydrating device for producing isooctyl nitrate, including rectangular shell (1), the placement plate (2) and agitator being arranged in shell (1), dehydration cylinder (3) being arranged on the placement plate (2), it is characterized in that, It also includes lifting mechanism arranged on both sides of the inner wall of the shell (1); the placing plate (2) is horizontally slidably arranged in the shell (1), the stirrer is vertically slidably arranged in the shell (1), and the lifting mechanism is in transmission connection with the stirrer to drive the vertical movement of the stirrer.

2. The dewatering device for production of isooctyl nitrate according to claim 1, characterized in that, The lifting mechanism includes rotating rods (4) transversely rotatably connected on both sides of the shell (1), and first screw rods (5) vertically rotatably connected on both sides of the upper part of the shell (1); the placing plate (2) is connected with a rack (6) on both sides of the upper part, the rotating rod (4) is sequentially provided with a first gear (7) and a first bevel gear (8) along the length direction, the first screw rod (5) is provided with a second bevel gear (9) at the end, the rack (6) is in mesh with the first gear (7), and the first bevel gear (8) and the second bevel gear (9) are in mesh.

3. The dewatering device for production of isooctyl nitrate according to claim 2, characterized in that, The stirrer includes a baffle (11) threadedly connected with the first screw rod (5) through an L-shaped plate (10) and a motor (12) arranged on the baffle (11); the motor (12) is connected with a stirring blade (13) penetrating through the baffle (11), and the L-shaped plate (10) is connected with a limiting plate (14) in sliding fit with the inner wall of the shell (1).

4. The dewatering device for production of isooctyl nitrate according to claim 2, characterized in that, It also includes clamping mechanisms arranged on both sides of the shell (1), the clamping mechanisms include second screw rods (15) transversely rotatably connected on both sides of the shell (1), and moving frames (16) respectively in sliding fit with both side walls of the shell (1) and respectively in thread fit with the two second screw rods (15); the second screw rod (15) is connected with a second gear (17), the second gear (17) is in mesh with the rack (6), the moving frame (16) is provided with a clamping plate (18) at the end, and the thread directions of the two second screw rods (15) are opposite.

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