Mixing device for preparing N-cyanoethylimido ethyl ester
Through the combination of the magnetic control mixing device and the lifting level adapter, the sealing problem during feeding and discharge in the N-cyanoethyleneimine ethyl ester preparation device is solved, efficient mixing and precise control are achieved, and reaction purity and detection convenience are improved.
Patent Information
- Application Number
- CN202510305720.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-14
- Publication Date
- 2025-07-08
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The existing mixing device for preparation of N-cyanoethyleneimine is not convenient for sealing and airless operation when feeding and discharging, resulting in air mixing and affecting purity. In addition, traditional structures are prone to waste of discharge residues and volatile substances, and it is difficult to control the isolation between feed and exhaust.
The mixing drive unit is used to control the rotation of the mixing device, and combine it with the lifting level adapter and positioning control to achieve isolation control between feed and exhaust, and the buoyancy density test piece assists in detecting the reaction degree to ensure the sealing and accuracy of the mixing process.
It realizes efficient mixing, reduces leakage and residue, improves reaction purity and feed ratio accuracy, simplifies the detection process, and avoids cumbersome sampling operations and waste of volatile substances.
Smart Images
Figure CN120268356A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of mixing, and particularly relates to a mixing device for preparing ethyl N-cyanoethanimidate. Background Art
[0002] Ethyl N-cyanoethanimidate is a colorless transparent liquid, soluble in organic solvents such as methanol, chloroform, and ethanol. It is an important chemical raw material and is often used as an intermediate for vitamin B1 and acetamiprid. In the actual preparation of ethyl N-cyanoethanimidate, its raw materials need to be mixed, and the raw materials involve volatile substances such as anhydrous ethanol. During the actual preparation process, a large amount of waste gas will be generated. Currently, most of the mixing devices for preparing ethyl N-cyanoethanimidate are tank structures, which are not convenient for realizing airtight and airless operation during discharging and feeding, and are prone to mixing air. A large amount of waste gas in the tank will also affect the purity. At the same time, it is not convenient to control the feeding and exhaust separately. During feeding, a large amount of volatilization is likely to occur, and directly discharging it as waste gas will affect the reaction effect. At the same time, it is not convenient for workers to detect the reaction degree in real time. The cumbersome sampling test is time-consuming and laborious and is also prone to leakage. At the same time, the traditional mixing structure is likely to cause discharging residue, affecting the purity of subsequent mixing and preparation. Therefore, the present application provides a mixing device for preparing ethyl N-cyanoethanimidate to meet the requirements. Summary of the Invention
[0003] The technical problem to be solved by the present invention is to provide a mixing device for preparing ethyl N-cyanoethanimidate to solve the problems that most of the current mixing devices for preparing ethyl N-cyanoethanimidate are tank structures, which are not convenient for realizing airtight and airless operation during discharging and feeding, and are not convenient for controlling the feeding and exhaust separately.
[0004] To solve the above technical problems, the present invention provides the following technical solutions:
[0005] A mixing device for preparing ethyl N-cyanoethanimidate, including a mixing installation part, a mixing driving part is installed on the mixing installation part, and a mixing device is installed inside the mixing installation part; the mixing driving part is used for magnetically controlling the rotation of the mixing device; a lifting liquid level adapter is installed on the mixing installation part; a positioning control part is installed on the lifting liquid level adapter; the positioning control part is used for positioning the height of the lifting liquid level adapter; a conduction control part is fixedly installed at the bottom of the positioning control part; the conduction control part is used for controlling the switching between exhaust and feeding; a buoyancy density test part is installed at the bottom of the conduction control part; the buoyancy density test part is used for testing the buoyancy of the solution; the mixing installation part includes: a mixing tank and a limiting convex ring, and the limiting convex ring is fixedly installed inside the top of the mixing tank; the inside of the mixing tank is used for mixing the raw materials of ethyl N-cyanoethanimidate.
[0006] Optionally, the mixing installation part further includes a discharge pipe fixedly installed at the bottom of the mixing tank, and a valve is provided on the discharge pipe; four support legs are provided at the bottom of the mixing tank.
[0007] Optionally, the mixing driving part includes a rotary ring rotatably installed at the bottom of the mixing tank; a driving motor is fixedly installed on the side of the mixing tank; a rubber wheel is provided on the output shaft of the driving motor; a circle of positioning magnets is fixedly embedded inside the rotary ring; the rubber wheel on the output shaft of the driving motor is in close contact with the rotary ring; the driving motor is used to drive the rotary ring to rotate.
[0008] Optionally, the mixing device includes an elastic spiral blade sleeved inside the mixing tank; a rotating ring is fixedly installed at the bottom of the elastic spiral blade; the rotating ring is rotatably sleeved at the bottom of the mixing tank; the mixing tank is made of ceramic material; a circle of rotary magnets is fixedly embedded at the bottom of the rotating ring; a circle of rotary magnets is magnetically aligned with a circle of positioning magnets respectively.
[0009] Optionally, the lifting liquid level adapter includes a lifting adapter plate slidably sleeved inside the mixing tank; two sealing rings are provided on the outer side of the lifting adapter plate; the lifting adapter plate is located below the limit convex ring; a positioning washer is sleeved on the outer side of the lifting adapter plate; the positioning washer is used to expand and fit the inside of the mixing tank; a feed pipe is fixedly installed on the lifting adapter plate; an exhaust pipe is fixedly installed on the lifting adapter plate; valves are respectively provided on the feed pipe and the exhaust pipe; the lifting adapter plate is used to adapt to the lifting of the liquid level; an air extraction pump is externally connected to the exhaust pipe; a feed pump is externally connected to the feed pipe.
[0010] Optionally, the positioning control part includes a switch hydraulic cylinder fixedly installed on the lifting adapter plate through a bracket; the output shaft of the switch hydraulic cylinder is located in the middle of the lifting adapter plate; a pressure regulating plate is fixedly installed on the output shaft of the switch hydraulic cylinder; an airbag bracket is fixedly installed on the lifting adapter plate; the airbag bracket is aligned with the pressure regulating plate.
[0011] Optionally, the positioning control part further includes an expansion airbag fixedly installed at the bottom of the airbag bracket; the bottom of the expansion airbag is fixedly attached to the pressure regulating plate; the expansion airbag is connected to the positioning washer through a hose; the positioning washer is of a hollow structure.
[0012] Optionally, the conduction control part includes a control column fixedly installed on the output shaft of the switch hydraulic cylinder; a closed control cylinder is fixedly installed at the bottom of the control column; a circle of slot holes is provided above the closed control cylinder; when a circle of slot holes on the closed control cylinder is aligned with the end of the exhaust pipe, the expansion airbag is in a compressed state by the rising of the pressure regulating plate, and the bottom of the closed control cylinder is in a closed fit with the end of the feed pipe.
[0013] Optionally, the buoyancy density test piece includes a test mounting block fixedly sleeved on the closed control cylinder; a circle of through holes are provided on the test mounting block; a buoyancy column is slidably mounted at the bottom of the test mounting block; a pressure sensor is fixedly mounted inside the test mounting block; the end of the pressure sensor is attached to the buoyancy column, and a display is externally connected to the pressure sensor; a spring is connected between the buoyancy column and the inner side of the test mounting block.
[0014] Optionally, the buoyancy density test piece further includes a buoyancy block fixedly mounted at the bottom of the buoyancy column; the buoyancy block is used to test the buoyancy of the solution.
[0015] Compared with the prior art, the present invention has at least the following beneficial effects:
[0016] In the above solution, by adopting the mixing device, it can cooperate with the mixing drive part to perform efficient mixing work. At the same time, this structure adopts the magnetic control mixing device of the mixing drive part to mix and stir, which can perform isolated drive without leakage. At the same time, the elastic spiral blade is an elastic structure, which can ensure the mixing range; by adopting the lifting liquid level adapter, the lifting adapter plate can be used to adapt to the lifting of the liquid level inside the mixing tank, which can reduce the influence of the gas in the tank on the raw material mixing reaction. At the same time, by adopting the lifting liquid level adapter, the raw materials inside the mixing tank can be emptied more comprehensively, reducing residues and avoiding the problem that the stirring structure and other components inside the traditional mixing tank are prone to raw material residues.
[0017] By adopting the positioning control part, it can cooperate with the conduction control part to control the isolation of raw material feeding and exhaust during feeding, avoiding simultaneous operation, which can ensure the reaction quality of this structure. At the same time, the automatic closing of the exhaust during feeding of this structure can prevent, for example, when ethanol is put in, the easily volatile ethanol is quickly discharged by the exhaust pipe, which affects the accuracy of the transport material ratio. At the same time, this structure can automatically position the height of the lifting adapter plate during the exhaust operation, avoiding the lifting adapter plate being interfered by factors such as air pressure and affecting the exhaust gas discharge volume due to detachment from the liquid surface.
[0018] By adopting the buoyancy density test piece, through the buoyancy detection method, it is convenient for the staff to test the solution density through buoyancy, which can play a role in assisting to simply understand the reaction degree, avoiding the problem of poor flexibility of the cumbersome sampling and testing method, and at the same time, it is also prone to leakage. Adopting the buoyancy density test piece can also facilitate the staff to understand the liquid level, avoiding a large distance between the liquid level and the lifting adapter plate, which affects the detection accuracy of the buoyancy density test piece, and at the same time, avoiding the problem of excessive exhaust gas content above the liquid surface. Description of the Drawings
[0019] The accompanying drawings incorporated herein and constituting a part of the specification illustrate embodiments of the present invention and, together with the specification, are further used to explain the principles of the present invention and enable those skilled in the relevant art to implement and use the present invention.
[0020] Figure 1 It is a schematic three-dimensional structure diagram of a mixing device for preparing ethyl N-cyanoethanimidate;
[0021] Figure 2 It is a sectional view of the internal structure of a mixing device for preparing ethyl N-cyanoethanimidate;
[0022] Figure 3 It is a schematic bottom structure diagram of a mixing device for preparing ethyl N-cyanoethanimidate;
[0023] Figure 4 It is a schematic enlarged three-dimensional structure diagram of the mixing installation part;
[0024] Figure 5 It is a schematic enlarged three-dimensional structure diagram of the mixing driving part;
[0025] Figure 6 It is a schematic enlarged three-dimensional structure diagram of the lifting liquid level adapter;
[0026] Figure 7 It is a schematic enlarged three-dimensional structure diagram of the positioning control part;
[0027] Figure 8 It is Figure 6 an enlarged view of the structure of area B in
[0028] Figure 9 It is Figure 2 an enlarged view of the structure of area C in
[0029] Figure 10 It is Figure 2 an enlarged view of the structure of area D in
[0030] Reference numerals:
[0031] 1. Mixing installation part; 101. Mixing tank; 1011. Limiting convex ring; 102. Discharge pipe; 2. Mixing driving part; 201. Rotary ring; 202. Driving motor; 203. Positioning magnet; 3. Mixing device; 301. Elastic spiral blade; 302. Rotating ring; 303. Rotary magnet; 4. Lifting liquid level adapter; 401. Lifting adapter plate; 402. Positioning washer; 403. Feed pipe; 404. Exhaust pipe; 5. Positioning control part; 501. Switch hydraulic cylinder; 503. Pressure regulating plate; 502. Airbag support; 504. Expanding airbag; 6. Conducting control part; 601. Control column; 602. Sealing control cylinder; 7. Buoyancy density test part; 701. Test installation block; 702. Buoyancy column; 703. Pressure sensor; 704. Buoyancy block.
[0032] As shown in the figure, in order to clearly implement the structure of the embodiments of the present invention, specific structures and devices are marked in the figure. However, this is only for schematic needs and is not intended to limit the present invention to this specific structure, device and environment. According to specific needs, those of ordinary skill in the art can adjust or modify these devices and environments. Detailed implementation manners
[0033] The following describes in detail a mixing device for preparing ethyl N-cyanoethanimidate provided by the present invention in conjunction with the accompanying drawings and specific embodiments. At the same time, it should be noted here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments. For some well-known technologies, those skilled in the art can also adopt other alternative methods for implementation; moreover, the accompanying drawings are only for more specifically describing the embodiments and are not intended to specifically limit the present invention.
[0034] It should be noted that in the specification, when referring to "an embodiment", "embodiment", "exemplary embodiment", "some embodiments", etc., it indicates that the described embodiment may include specific features, structures or characteristics, but not necessarily every embodiment includes such specific features, structures or characteristics. Additionally, when combining embodiments to describe specific features, structures or characteristics, implementing such features, structures or characteristics in combination with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the relevant art.
[0035] Generally, terms can be understood at least in part from their use in context. For example, at least in part depending on the context, the term "one or more" used herein can be used to describe any feature, structure or characteristic in a singular sense, or can be used to describe a combination of features, structures or characteristics in a plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey a set of exclusive factors, but rather, at least in part depending on the context, allowing for the existence of other factors that may not be explicitly described.
[0036] It is understood that the meanings of "on...", "above...", and "overhead..." in the present invention should be interpreted in the broadest manner, such that "on..." not only means "directly on" something, but also includes the meaning of being "on" something with intervening features or layers therebetween, and "above..." or "overhead..." not only means "above" or "overhead" something, but may also include the meaning of being "above" or "overhead" something with no intervening features or layers therebetween.
[0037] In addition, spatial relative terms such as "under...", "below...", "lower part", "above...", "upper part", etc. may be used herein for convenience of description to describe the relationship of one element or feature to another or more elements or features, as shown in the drawings. The spatial relative terms are intended to cover different orientations in the use or operation of the device in addition to the orientation depicted in the drawings. The device may be oriented in other ways, and the spatial relative descriptors used herein may be interpreted accordingly.
[0038] As Figures 1 to 10 shown, an embodiment of the present invention provides a mixing device for preparing ethyl N-cyanoethanimidate, including a mixing installation part 1, a mixing driving part 2 is installed on the mixing installation part 1, and a mixing device 3 is installed inside the mixing installation part 1; the mixing driving part 2 is used for magnetically controlling the rotation of the mixing device 3; a lifting liquid level adapter 4 is installed on the mixing installation part 1; a positioning control part 5 is installed on the lifting liquid level adapter 4; the positioning control part 5 is used for positioning the height of the lifting liquid level adapter 4; a conduction control part 6 is fixedly installed at the bottom of the positioning control part 5; the conduction control part 6 is used for controlling the switching of exhaust and feeding; a buoyancy density test part 7 is installed at the bottom of the conduction control part 6; the buoyancy density test part 7 is used for testing the buoyancy of the solution; the mixing installation part 1 includes: a mixing tank 101 and a limiting convex ring 1011, and the limiting convex ring 1011 is fixedly installed on the inner side of the top of the mixing tank 101; the inside of the mixing tank 101 is used for mixing the ethyl N-cyanoethanimidate raw materials.
[0039] As Figures 3 to 5As shown, the mixing and mounting part 1 further includes a discharge pipe 102 fixedly installed at the bottom of the mixing tank 101, and a valve is provided on the discharge pipe 102; four support legs are provided at the bottom of the mixing tank 101; the mixing drive part 2 includes a rotary ring 201 rotatably installed at the bottom of the mixing tank 101; a drive motor 202 is fixedly installed on the side of the mixing tank 101; a rubber wheel is provided on the output shaft of the drive motor 202; a circle of positioning magnets 203 is fixedly embedded inside the rotary ring 201; the rubber wheel on the output shaft of the drive motor 202 is in close contact with the rotary ring 201; the drive motor 202 is used to drive the rotary ring 201 to rotate; the mixing device 3 includes an elastic spiral blade 301 sleeved inside the mixing tank 101; a rotating ring 302 is fixedly installed at the bottom of the elastic spiral blade 301; the rotating ring 302 is rotatably sleeved at the bottom of the mixing tank 101; the mixing tank 101 is made of ceramic material; a circle of rotary magnets 303 is fixedly embedded at the bottom of the rotating ring 302; a circle of rotary magnets 303 is magnetically aligned with a circle of positioning magnets 203 respectively. The mixing device 3 can cooperate with the mixing drive part 2 to perform efficient mixing work. At the same time, this structure adopts the method of magnetic control of the mixing device 3 by the mixing drive part 2 for mixing and stirring, which can perform isolated drive without leakage. At the same time, the elastic spiral blade 301 is an elastic structure, which can ensure the mixing range and can be elastically adapted to the lifting of the lifting and level adapting plate 401.
[0040] As Figure 4 and Figure 6 shown, the lifting and level adapting part 4 includes a lifting and adapting plate 401 slidably sleeved inside the mixing tank 101; two sealing rings are provided on the outside of the lifting and adapting plate 401; the lifting and adapting plate 401 is located below the limit projection ring 1011; a positioning washer 402 is sleeved on the outside of the lifting and adapting plate 401; the positioning washer 402 is used to expand and fit the inside of the mixing tank 101; a feed pipe 403 is fixedly installed on the lifting and adapting plate 401; an exhaust pipe 404 is fixedly installed on the lifting and adapting plate 401; valves are respectively provided on the feed pipe 403 and the exhaust pipe 404; the lifting and adapting plate 401 is used to adapt to the lifting and lowering of the liquid level; an air extraction pump is externally connected to the exhaust pipe 404; a feed pump is externally connected to the feed pipe 403; by adopting the lifting and level adapting part 4, the lifting and adapting plate 401 can be used to adapt to the lifting and lowering of the liquid level inside the mixing tank 101, which can reduce the influence of the gas in the tank on the raw material mixing reaction. At the same time, by adopting the lifting and level adapting part 4, the raw materials inside the mixing tank 101 can be emptied more comprehensively, reducing residues and avoiding the problem that the traditional mixing tank 101 is prone to residue of raw materials in components such as the internal stirring structure, improving the batching accuracy during multiple reactions of this structure, especially for volatile raw materials such as ethanol, ensuring the reaction quality. As the raw material liquid level drops, the lifting and adapting plate 401 can follow and drop, and no air will be mixed in during the process. The lifting and adapting plate 401 will compress the elastic spiral blade 301 to ensure that the raw materials can be emptied.
[0041] As Figures 6 to 10As shown, the positioning control member 5 includes a switch hydraulic cylinder 501 fixedly installed on the lifting adapter plate 401 through a bracket; the output shaft of the switch hydraulic cylinder 501 is located in the middle of the lifting adapter plate 401; a pressure regulating plate 503 is fixedly installed on the output shaft of the switch hydraulic cylinder 501; an airbag bracket 502 is fixedly installed on the lifting adapter plate 401; the airbag bracket 502 is aligned with the pressure regulating plate 503; the positioning control member 5 further includes an expansion airbag 504 fixedly installed at the bottom of the airbag bracket 502; the bottom of the expansion airbag 504 is fixedly attached to the pressure regulating plate 503; the expansion airbag 504 is connected to the positioning washer 402 through a hose; the positioning washer 402 is of a hollow structure; the conduction control member 6 includes a control column 601 fixedly installed on the output shaft of the switch hydraulic cylinder 501; a closed control cylinder 602 is fixedly installed at the bottom of the control column 601; there is a circle of slot holes above the closed control cylinder 602; when the circle of slot holes on the closed control cylinder 602 is aligned with the end of the exhaust pipe 404, the expansion airbag 504 is in a state of being compressed by the upward movement of the pressure regulating plate 503, and the bottom of the closed control cylinder 602 is in a closed fit with the end of the feed pipe 403; the positioning control member 5 can cooperate with the conduction control member 6 to control the isolation of raw material feeding from exhaust during feeding, avoiding simultaneous operation, which can ensure the reaction quality of this structure. At the same time, the automatic closing of the exhaust during feeding in this structure can prevent, for example, when ethanol is put in, the easily volatile ethanol from being quickly discharged by the exhaust pipe 404, which may affect the accuracy of the transportation material ratio. At the same time, this structure can automatically position the height of the lifting adapter plate 401 during the exhaust operation, avoiding the lifting adapter plate 401 being interfered by factors such as air pressure and causing it to deviate from the liquid level, affecting the exhaust gas discharge volume. The structure can achieve automatic control, with simple and convenient operation. When raw materials need to be added, controlling the switch hydraulic cylinder 501 to drive the control column 601 to rise can drive the circle of through slots above the closed control cylinder 602 to align with the exhaust pipe 404 for exhaust. Just open the valve on the exhaust pipe 404 and the external air extraction pump. At this time, the bottom of the closed control cylinder 602 will be in a closed fit with the feed pipe 403. When the control column 601 rises, the expansion airbag 504 is in a state of being compressed by the upward movement of the pressure regulating plate 503, and the positioning washer 402 expands and fits inside the mixing tank 101.
[0042] As Figure 8As shown in the figure, the buoyancy density test piece 7 includes a test installation block 701 fixedly sleeved on the closed control cylinder 602; a circle of through holes are provided on the test installation block 701; a buoyancy column 702 is slidably installed at the bottom of the test installation block 701; a pressure sensor 703 is fixedly installed inside the test installation block 701; the end of the pressure sensor 703 is attached to the buoyancy column 702, and the pressure sensor 703 is externally connected to a display; a spring is connected between the buoyancy column 702 and the inner side of the test installation block 701; an SC-10N type pressure sensor can be used; the buoyancy density test piece 7 further includes a buoyancy block 704 fixedly installed at the bottom of the buoyancy column 702; the buoyancy block 704 is used to test the buoyancy of the solution. By using the buoyancy density test piece 7, the density of the solution can be easily detected by the staff through buoyancy detection, which can play a role in assisting to simply understand the reaction degree, can avoid the problem of poor flexibility of the cumbersome sampling and sending for inspection method, and at the same time is also prone to leakage. At the same time, using the buoyancy density test piece 7 can also facilitate the staff to understand the liquid level, can avoid a large distance between the liquid level and the lifting adapter plate 401, which affects the detection accuracy of the buoyancy density test piece 7, and at the same time can also avoid the problem of excessive exhaust gas content above the liquid surface. The structure is simple to operate. Since the densities of the raw materials and products are different, as the reaction progresses, the density of the mixture gradually changes, resulting in a corresponding change in buoyancy. When the raw materials are put in, as the liquid level rises, the liquid level touches the buoyancy block 704, and at this time, it is determined that the liquid level meets the standard, and the pressure sensor 703 can give a prompt. When it is necessary to test the density of the solution, as the control column 601 descends, the buoyancy block 704 is also driven to descend. At this time, under the action of buoyancy, the buoyancy block 704 generates an upward acting force, driving the buoyancy column 702 to move upward and squeeze the pressure sensor 703, and the pressure sensor 703 can display the pressure in real time.
[0043] The working principle of the technical solution provided by the present invention is as follows:
[0044] First, the feed pipe 403 can be used to add raw materials. By opening the valve on the exhaust pipe 404, waste gas can be discharged, which can be controlled according to requirements. The driving motor 202 drives the rubber wheel on the output shaft to frictionally drive the rotary ring 201 to rotate. By using the positioning magnets 203 on the rotary ring 201, a circle of rotary magnets 303 can be magnetically driven to rotate, that is, the elastic spiral blades 301 on the rotating ring 302 are driven to rotate for mixing work. The switch hydraulic cylinder 501 drives the closing control cylinder 602 to descend, and the control column 601 descends to close the exhaust pipe 404. At this time, a circle of through grooves above the closing control cylinder 602 is aligned with the feed pipe 403, and the feed pipe 403 can feed normally. As the feed increases, the lifting adapter plate 401 can be driven to rise by the liquid level. At this time, when the switch hydraulic cylinder 501 drives the closing control cylinder 602 to descend, the pressure regulating plate 503 also descends, does not squeeze the expansion airbag 504, and the positioning washer 402 is in a deflated state, which does not affect the lifting of the adapter plate 401. At the same time, as the reaction proceeds, the elastic spiral blades 301 are controlled to stir and mix raw materials such as ethanol. During the subsequent reaction process, the switch hydraulic cylinder 501 is controlled to drive the control column 601 to rise, which can drive a circle of through grooves above the closing control cylinder 602 to be aligned with the exhaust pipe 404 for exhaust. Just open the valve on the exhaust pipe 404 and the external air pump. At this time, the bottom of the closing control cylinder 602 will be closed and fit the feed pipe 403. When the control column 601 rises, the expansion airbag 504 is in a state of being compressed by the rising pressure regulating plate 503, and the positioning washer 402 expands and fits the inside of the mixing tank 101. As the liquid level rises, the liquid level touches the buoyancy block 704. At this time, it is determined that the liquid level reaches the standard, and the pressure sensor 703 can give a prompt. When it is necessary to test the solution density, as the control column 601 descends, the buoyancy block 704 is also driven to descend. At this time, under the action of buoyancy, the buoyancy block 704 generates an upward acting force, driving the buoyancy column 702 to move upward and squeeze the pressure sensor 703. The pressure sensor 703 can display the pressure in real time for the staff to judge. When the reaction is completed and the raw materials need to be emptied, by opening the valve on the discharge pipe 102, an external valve can be connected to the discharge pipe 102, and at this time, the raw materials can be discharged. As the liquid level of the raw materials drops, the lifting adapter plate 401 can follow and drop. During the process, no air will be mixed in, and the lifting adapter plate 401 will compress the elastic spiral blades 301 to ensure that the raw materials can be emptied.
[0045] This invention covers any alternatives, modifications, equivalent methods, and solutions made within the essence and scope of this invention. To enable the public to have a thorough understanding of this invention, specific details are described in detail in the following preferred embodiments of this invention. However, those skilled in the art can fully understand this invention even without the description of these details. Additionally, to avoid unnecessary confusion to the essence of this invention, well-known methods, processes, procedures, components, and circuits are not described in detail.
[0046] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.
Claims
1. A mixing device for preparing ethyl N-cyanoethanimidate, comprising a mixing installation part, on which a mixing driving part is installed, characterized in that, A mixing device is installed inside the mixing installation part; the mixing driving part is used to magnetically control the rotation of the mixing device; A lifting liquid level adapter is installed on the mixing installation part; a positioning control part is installed on the lifting liquid level adapter; the positioning control part is used to position the height of the lifting liquid level adapter; A conduction control part is fixedly installed at the bottom of the positioning control part; the conduction control part is used to control the switching between exhaust and feeding; A buoyancy density test part is installed at the bottom of the conduction control part; the buoyancy density test part is used to test the buoyancy of the solution; The mixing installation part includes: a mixing tank and a limit convex ring, and the limit convex ring is fixedly installed inside the top of the mixing tank; the inside of the mixing tank is used to mix the ethyl N-cyanoethanimidate raw material.
2. The mixing device for preparing ethyl N-cyanoethanimidate according to claim 1, characterized in that, The mixing installation part further includes a discharge pipe fixedly installed at the bottom of the mixing tank, and a valve is provided on the discharge pipe; four support legs are provided at the bottom of the mixing tank.
3. The mixing device for preparing ethyl N-cyanoethanimidate according to claim 1, wherein, The mixing driving part includes a rotary ring rotatably installed at the bottom of the mixing tank; a driving motor is fixedly installed on the side of the mixing tank; a rubber wheel is provided on the output shaft of the driving motor; a circle of positioning magnets is fixedly embedded inside the rotary ring; the rubber wheel on the output shaft of the driving motor is closely attached to the rotary ring; the driving motor is used to drive the rotary ring to rotate.
4. The mixing device for preparing ethyl N-cyanoethanimidate according to claim 3, characterized in that, The mixing device includes an elastic spiral blade sleeved inside the mixing tank; a rotating ring is fixedly installed at the bottom of the elastic spiral blade; the rotating ring is rotatably sleeved at the bottom of the mixing tank; the mixing tank is made of ceramic material; a circle of rotary magnets is fixedly embedded at the bottom of the rotating ring; a circle of rotary magnets is magnetically aligned with a circle of positioning magnets respectively.
5. The mixing device for preparing ethyl N-cyanoethanimidate according to claim 1, wherein, The lifting liquid level adapter includes a lifting adapter plate slidably sleeved inside the mixing tank; two sealing rings are provided on the outside of the lifting adapter plate; the lifting adapter plate is located below the limit convex ring; a positioning washer is sleeved on the outside of the lifting adapter plate; the positioning washer is used to expand and fit inside the mixing tank; a feed pipe is fixedly installed on the lifting adapter plate; an exhaust pipe is fixedly installed on the lifting adapter plate; valves are respectively provided on the feed pipe and the exhaust pipe; the lifting adapter plate is used to adapt to the lifting of the liquid level; the exhaust pipe is externally connected with an air extraction pump; the feed pipe is externally connected with a feed pump.
6. The mixing device for preparing ethyl N-cyanoacetimidate according to claim 5, characterized in that, The positioning control part includes a switch hydraulic cylinder fixedly installed on the lifting adapter plate through a bracket; the output shaft of the switch hydraulic cylinder is located in the middle of the lifting adapter plate; a pressure regulating plate is fixedly installed on the output shaft of the switch hydraulic cylinder; an airbag bracket is fixedly installed on the lifting adapter plate; the airbag bracket is aligned with the pressure regulating plate.
7. A mixing device for preparing ethyl N-cyanoacetimidate according to claim 6, characterized in that, The positioning control part further includes an expansion airbag fixedly installed at the bottom of the airbag bracket; the bottom of the expansion airbag is fixedly attached to the pressure regulating plate; the expansion airbag is connected to the positioning washer through a hose; the positioning washer is of a hollow structure.
8. The mixing device for preparing ethyl N-cyanoacetimidate according to claim 6, wherein, The conduction control part includes a control column fixedly installed on the output shaft of the switch hydraulic cylinder; a closed control cylinder is fixedly installed at the bottom of the control column; a circle of slot holes is provided above the closed control cylinder; when a circle of slot holes on the closed control cylinder is aligned with the end of the exhaust pipe, the expansion airbag is in a state of being compressed by the upward movement of the pressure regulating plate, and the bottom of the closed control cylinder is in a state of being closed and attached to the end of the feed pipe.
9. The mixing device for preparing ethyl N-cyanoacetimidate according to claim 8, characterized in that, The buoyancy density test piece includes a test installation block fixedly sleeved on the closed control cylinder; a circle of through holes are provided on the test installation block; a buoyancy column is slidably installed at the bottom of the test installation block; a pressure sensor is fixedly installed inside the test installation block; the end of the pressure sensor is attached to the buoyancy column, and the pressure sensor is externally connected to a display; a spring is connected between the buoyancy column and the inner side of the test installation block.
10. A mixing device for preparing ethyl N-cyanoacetimidate according to claim 9, characterized in that, The buoyancy density test piece further includes a buoyancy block fixedly installed at the bottom of the buoyancy column; the buoyancy block is used to test the buoyancy of the solution.