A device for synthesizing formaldehyde and high-purity methylal
By designing a wave-shaped floating trough and a spiral plate structure, combined with stability measures such as ball bearings and springs, the problem of bubble formation in viscous formaldehyde solution during stirring was solved, achieving uniform dispersion and stable stirring of the material.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI HEHONG CHEM CO LTD
- Filing Date
- 2025-08-25
- Publication Date
- 2026-07-21
AI Technical Summary
During stirring, the viscous formaldehyde solution easily forms bubbles, causing the catalyst to be trapped inside the bubbles and reducing the stirring effect.
It adopts a wave-shaped floating groove design and a spiral plate structure, combined with the stability design of ball bearings and springs. The drive component drives the rotating shaft to rotate, realizing the periodic up and down shaking and dispersion of materials, and preventing the formation of material coating layers.
It improves the dispersion effect of viscous materials, solves the problem of uneven mixing, and enhances the stability and efficiency of mixing.
Smart Images
Figure CN224524783U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of formaldehyde and methylal production equipment, and in particular to a synthesis apparatus for formaldehyde and high-purity methylal. Background Technology
[0002] Formaldehyde is a colorless gas with a pungent odor. It is widely used in the chemical and textile industries during industrial production. At the same time, formaldehyde of a certain concentration can also be made into formalin preservative solution.
[0003] In existing technologies, synthesis devices with stirring functions are often used to stir various raw materials during the processing to promote their mixing. However, in actual use, formaldehyde solutions of a certain concentration have a certain viscosity, and viscous materials are prone to forming bubbles during stirring, which causes the catalyst to be trapped inside the bubbles, resulting in a reduction in the stirring effect. Utility Model Content
[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a device for synthesizing formaldehyde and high-purity methylal, so as to solve the technical problems mentioned in the background art.
[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: An apparatus for synthesizing formaldehyde and high-purity methylal, comprising: The synthesis tank has a rotating shaft inside, and a spiral plate is provided on the outer peripheral wall of the rotating shaft. The spiral plate has several evenly distributed grooves inside. Connecting shafts are fixedly installed on both sides of the top of the rotating shaft, and a floating groove is opened at the top of the inside of the synthesis tank, with both ends of the connecting shaft inserted into the floating groove. The synthesis tank is equipped with a top cover, and a drive shaft is located at the center of the top cover. The drive shaft is rotatably connected to the top cover and slidably connected to the rotating shaft. A drive assembly is located at the upper end of the top cover to drive the drive shaft to rotate.
[0006] Furthermore, the floating groove is arranged in a continuous and smooth wave shape.
[0007] Furthermore, the two ends of the connecting shaft are provided with balls, and the outer wall of the balls is in contact with the bottom wall of the floating groove.
[0008] Furthermore, the driving component includes: The control motor is fixedly connected to the top of the top cover; The gearbox has its input shaft fixedly connected to the motor shaft of the control motor, its output end fixedly connected to the drive shaft, and the gearbox is fixedly mounted on the top of the top cover.
[0009] Furthermore, the ends of the two connecting shafts are provided with guide rings, the outer peripheral wall of the guide rings is in contact with the inner wall of the synthesis tank, and the width of the guide rings is greater than the height of the floating trough.
[0010] Furthermore, the top opening of the synthesis tank is provided with a groove, and the bottom end of the top cover is provided with a sealing ring corresponding to the groove.
[0011] Furthermore, the bottom of the synthesis tank is provided with a support platform, and a sleeve is slidably provided on the upper end of the support platform. The sleeve is rotatably connected to the bottom end of the rotating shaft, and the rotating shaft and the sleeve are coaxially arranged. A spring for providing tension to the sleeve is provided inside the support platform.
[0012] In summary, this utility model has at least one of the following beneficial technical effects: 1. This apparatus for synthesizing formaldehyde and high-purity methylal uses a floating tank with a wave-shaped structure as its motion track. When the connecting shaft moves inside the tank, the continuous wave-like design forces the connecting shaft to drive the rotating shaft to make periodic up-and-down displacements. This displacement causes the material on the spiral plate to vibrate, enhancing the dispersion effect and solving the problem of uneven mixing of viscous materials. 2. The apparatus for synthesizing formaldehyde and high-purity methylal utilizes a spring installed inside the support. When the rotating shaft moves upward, the spring is stretched, accumulating downward potential energy. This allows the balls at both ends of the connecting shaft to make close contact with the bottom wall of the floating tank, improving stability. Conversely, when the connecting shaft moves downward, the spring contracts and accumulates upward potential energy, allowing the balls at the end of the connecting shaft to make contact with the top wall of the floating tank, further improving stability. 3. This apparatus for synthesizing formaldehyde and high-purity methylal achieves the effect of stirring the materials through the setting of a rotating shaft and a spiral plate. During the stirring process, the materials fall along the trough, which further disperses the materials and prevents the formation of a coating layer inside the materials, thus avoiding uneven stirring. Attached Figure Description
[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0014] Figure 1 This is a schematic diagram of the structure of a device for synthesizing formaldehyde and high-purity methylal according to the present invention.
[0015] Figure 2 This is a schematic diagram of the synthesis tank of a formaldehyde and high-purity methylal synthesis apparatus according to this utility model.
[0016] Figure 3 This is a schematic diagram of the internal structure of the synthesis tank of a formaldehyde and high-purity methylal synthesis device according to the present invention.
[0017] Figure 4 This is a schematic diagram of the drive component of a formaldehyde and high-purity methylal synthesis device according to the present invention.
[0018] Figure 5 This is a schematic diagram of the spiral plate structure of a formaldehyde and high-purity methylal synthesis device according to the present invention.
[0019] In the diagram, 1. Synthesis tank; 2. Rotating shaft; 3. Spiral plate; 4. Slot; 5. Connecting shaft; 6. Floating trough; 7. Top cover; 8. Drive shaft; 9. Drive assembly; 91. Control motor; 92. Gearbox; 10. Guide ring; 11. Support groove; 12. Sealing ring; 13. Support platform; 14. Sleeve. Detailed Implementation
[0020] The present invention will be further described in detail below with reference to the accompanying drawings. Example
[0021] Reference Figure 1 - Figure 5 This utility model discloses a device for synthesizing formaldehyde and high-purity methylal, comprising: The synthesis tank 1 has a rotating shaft 2 inside, and a spiral plate 3 is provided on the outer peripheral wall of the rotating shaft 2. The spiral plate 3 has several evenly distributed grooves 4 inside. Connecting shafts 5 are fixedly installed on both sides of the top end of the rotating shaft 2. A floating groove 6 is opened at the top inside the synthesis tank 1, and the two ends of the connecting shaft 5 are inserted into the floating groove 6. The top of the synthesis tank 1 is provided with a top cover 7, and the top of the top cover 7 is provided with a pipe for adding materials. A drive shaft 8 is provided at the center of the top cover 7. The drive shaft 8 is rotatably connected to the top cover 7 and slidably connected to the rotating shaft 2. A drive assembly 9 is provided at the upper end of the top cover 7 for driving the drive shaft 8 to rotate.
[0022] In this embodiment, since a formaldehyde solution of a certain concentration has a certain viscosity, and viscous materials are prone to forming bubbles during stirring, the catalyst may be trapped inside the bubbles, resulting in a reduction in the stirring effect. To change this situation, the following technical solution is proposed in this embodiment: Specifically, when mixing raw materials for formaldehyde solution to produce formaldehyde solution, the required raw materials are first poured into the interior of the synthesis tank 1, and the top cover 7 is placed over the top of the synthesis tank 1 to seal it. The sealing is improved by the groove 11 at the top opening of the synthesis tank 1 and the sealing ring 12 at the bottom of the top cover 7 corresponding to the groove 11. Then, the drive assembly 9 drives the drive shaft 8 to rotate. Since the drive shaft 8 is inserted into the top of the rotating shaft 2, as... Figure 5 As shown; At this time, the drive shaft 8 can rotate synchronously with the rotating shaft. Therefore, through the setting of the rotating shaft and the spiral plate 3, the material can be stirred. During the stirring process, the material will fall along the trough 4, so that the material can be further dispersed and prevent the material from having a coating layer inside, which would cause uneven stirring. Furthermore, during the rotation of the rotating shaft 2, the connecting shaft 5 will move inside the floating groove 6. The connecting shaft 5 is equipped with balls at both ends that contact the bottom wall of the floating groove 6, which reduces the friction between the connecting shaft 5 and the floating groove 6 and improves the smoothness of the connecting shaft 5 during movement. Since the floating groove 6 is a continuous and smooth wave-shaped design, the connecting shaft 5 will undulate up and down when it moves inside the floating groove 6, which will cause the connecting shaft 5 to drive the rotating shaft 2 to undulate up and down. As a result, when the material is on the upper surface of the spiral plate 3, it will generate up and down shaking, thereby improving the dispersion effect of the material. The guide ring 10 is used to block the floating groove 6 and prevent the material from entering the floating groove 6. When the rotating shaft 2 moves up and down, it will drive the sleeve 14 to move up and down inside the support 13. Since the sleeve 14 is rotatably connected to the rotating shaft 2, and the sleeve 14, the support 13 and the rotating shaft 2 are coaxial, the stability of the rotating shaft 2 during movement can be effectively improved. On the other hand, the spring installed inside the support platform 13 stretches when the rotating shaft 2 moves upward, allowing the spring to accumulate downward potential energy. This enables the balls at both ends of the connecting shaft 5 to make close contact with the bottom wall of the floating groove 6, improving stability. When the connecting shaft 5 moves downward, the spring contracts and accumulates upward potential energy, enabling the balls at the end of the connecting shaft 5 to make contact with the top wall of the floating groove 6, further improving stability. Specifically, the drive assembly 9 includes a control motor 91 and a gearbox 92. The control motor 91 drives the input shaft of the gearbox 92 to rotate, and through the gears inside the gearbox 92, drives the output shaft to rotate. The output shaft drives the drive shaft 8 to rotate, so as to achieve the purpose of driving the rotating shaft 2 to rotate by the control motor 91.
[0023] In a further preferred embodiment of this utility model, such as Figure 3As shown, the floating groove 6 is a continuous and smooth wave-shaped arrangement.
[0024] In this embodiment, the floating trough 6 with its wave-shaped structure serves as a motion track. When the connecting shaft 5 moves inside it, the continuous wave-like design of the trough forces the connecting shaft 5 to drive the rotating shaft 2 to make periodic up-and-down displacements. This displacement causes the material on the spiral plate 3 to vibrate, enhancing the dispersion effect and solving the problem of uneven mixing of viscous materials.
[0025] In a further preferred embodiment of this utility model, such as Figure 4 As shown, the two ends of the connecting shaft 5 are provided with balls, and the outer wall of the balls is in contact with the bottom wall of the floating groove 6.
[0026] In this embodiment, ball bearings are installed at both ends of the connecting shaft 5 so that they directly contact the bottom wall of the floating groove 6. The ball bearings replace sliding friction with rolling friction, which significantly reduces the resistance of the connecting shaft 5 when it moves in the floating groove 6, ensuring the smoothness and stability of the up-and-down movement of the rotating shaft 2.
[0027] In a further preferred embodiment of this utility model, such as Figure 4 As shown, the driving component 9 includes: Control motor 91, which is fixedly connected to the top of top cover 7; The gearbox 92 has its input shaft fixedly connected to the motor shaft of the control motor 91, its output end fixedly connected to the drive shaft 8, and the gearbox 92 is fixedly mounted on the top of the top cover 7.
[0028] In this embodiment, the system consists of a control motor 91 and a gearbox 92. The motor outputs power to the input shaft of the gearbox 92. After the internal gears change the speed, the output shaft drives the drive shaft 8, which is slidably connected to the rotating shaft 2, to rotate, thus achieving the stirring function.
[0029] In a further preferred embodiment of this utility model, such as Figure 5 As shown, the ends of the two connecting shafts 5 are provided with guide rings 10. The outer peripheral wall of the guide ring 10 is in contact with the inner wall of the synthesis tank 1, and the width of the guide ring 10 is greater than the height of the floating groove 6.
[0030] In this embodiment, the guide rings 10, which are provided at both ends of the connecting shaft 5, move in contact with the inner wall of the synthesis tank 1. Their width is greater than the height of the floating trough 6, forming a physical limit to prevent the connecting shaft 5 from leaving the track of the floating trough 6, ensuring that the rotating shaft 2 remains radially stable during up-and-down movement, and the guide rings 10 are used to shield the floating trough 6 to prevent materials from entering the floating trough 6.
[0031] In a further preferred embodiment of this utility model, such as Figure 2As shown, the top opening of the synthesis tank 1 is provided with a groove 11, and the bottom end of the top cover 7 is provided with a sealing ring 12 corresponding to the groove 11.
[0032] In this embodiment, the groove 11 at the top opening of the synthesis tank 1 and the sealing ring 12 at the bottom of the top cover 7 are fitted together. When the top cover 7 is closed, the two form a tight mechanical seal structure to prevent gas or liquid leakage and improve the overall sealing performance of the synthesis tank 1.
[0033] In a further preferred embodiment of this utility model, such as Figure 3 As shown, the bottom of the synthesis tank 1 is provided with a support platform 13, and the upper end of the support platform 13 is slidably provided with a sleeve 14. The sleeve 14 is rotatably connected to the bottom end of the rotating shaft 2, and the rotating shaft 2 and the sleeve 14 are coaxially arranged. The support platform 13 is provided with a spring for providing tension to the sleeve 14.
[0034] In this embodiment, the sleeve 14 inside the support 13 is rotatably connected to the bottom end of the rotating shaft 2, allowing the shaft to rotate while sliding axially. The built-in spring always applies tension to the sleeve 14. When the rotating shaft 2 moves upward, the spring stretches and accumulates downward pressure, and when it moves downward, the spring contracts and accumulates upward thrust. This bidirectional preload ensures that the balls of the connecting shaft 5 are always in close contact with the wall of the floating groove 6, maintaining motion stability.
[0035] The implementation principle of the above embodiment is as follows: the drive assembly 9 (control motor 91 and gearbox 92) drives the drive shaft 8 to rotate, the drive shaft 8 drives the rotating shaft 2 that is slidably connected to it to rotate synchronously, the spiral plate 3 on the rotating shaft 2 rotates accordingly to stir the material, and the material falls from the groove 4 of the spiral plate 3 to enhance the dispersion. At the same time, the rotation of the rotating shaft 2 drives the connecting shaft 5 at its top to move in the wave-shaped floating groove 6. The balls at both ends of the connecting shaft 5 roll along the bottom of the groove. Due to the continuous wave-shaped design of the floating groove 6, the connecting shaft 5 and the rotating shaft 2 are forced to rise and fall periodically. The rise and fall cause the material on the spiral plate 3 to shake, further breaking the coating layer and bubbles. The bottom end of the rotating shaft 2 is connected to the spring in the support platform 13 through the sleeve 14. The spring accumulates reverse potential energy when the shaft moves up and down, ensuring that the ball always sticks tightly to the wall of the floating groove 6, maintaining the stability and continuity of the movement. The structure of the support groove 11 and sealing ring 12 between the top cover 7 and the synthesis tank 1, as well as the design of the guide ring 10 to block the floating groove 6, ensures the sealing performance.
[0036] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.
Claims
1. An apparatus for synthesizing formaldehyde and high-purity methylal, characterized in that, Including: The synthesis tank (1) has a rotating shaft (2) inside, and a spiral plate (3) is provided on the outer peripheral wall of the rotating shaft (2). Several evenly distributed troughs (4) are opened inside the spiral plate (3). Connecting shafts (5) are fixedly installed on both sides of the top of the rotating shaft (2), and a floating groove (6) is opened at the top of the inside of the synthesis tank (1). The two ends of the connecting shaft (5) are inserted into the inside of the floating groove (6). The top of the synthesis tank (1) is provided with a top cover (7), and a drive shaft (8) is provided at the center of the top cover (7). The drive shaft (8) is rotatably connected to the top cover (7), and the drive shaft (8) is slidably connected to the rotating shaft (2). The upper end of the top cover (7) is provided with a drive assembly (9) for driving the drive shaft (8) to rotate.
2. The apparatus for synthesizing formaldehyde and high-purity methylal according to claim 1, characterized in that, The floating groove (6) is a continuous and smooth wave-shaped arrangement.
3. The apparatus for synthesizing formaldehyde and high-purity methylal according to claim 2, characterized in that, The connecting shaft (5) is provided with balls at both ends, and the outer wall of the balls is in contact with the bottom wall of the floating groove (6).
4. The apparatus for synthesizing formaldehyde and high-purity methylal according to claim 3, characterized in that, The driving component (9) includes: Control motor (91), which is fixedly connected to the top of the top cover (7); The gearbox (92) has its input shaft fixedly connected to the motor shaft of the control motor (91), its output end fixedly connected to the drive shaft (8), and the gearbox (92) is fixedly installed on the top of the top cover (7).
5. The apparatus for synthesizing formaldehyde and high-purity methylal according to claim 4, characterized in that, The ends of the two connecting shafts (5) are provided with guide rings (10). The outer peripheral wall of the guide ring (10) is in contact with the inner wall of the synthesis tank (1), and the width of the guide ring (10) is greater than the height of the floating trough (6).
6. The apparatus for synthesizing formaldehyde and high-purity methylal according to claim 5, characterized in that, The top opening of the synthesis tank (1) is provided with a groove (11), and the bottom end of the top cover (7) is provided with a sealing ring (12) corresponding to the groove (11).
7. The apparatus for synthesizing formaldehyde and high-purity methylal according to claim 6, characterized in that, The bottom of the synthesis tank (1) is provided with a support platform (13), and a sleeve (14) is slidably provided on the upper end of the support platform (13). The sleeve (14) is rotatably connected to the bottom end of the rotating shaft (2), and the rotating shaft (2) and the sleeve (14) are coaxially arranged. A spring for providing tension to the sleeve (14) is provided inside the support platform (13).