Methyl cedrene production raw material mixing device

Abstract

This utility model discloses a mixing device for raw materials in the production of methyl cedarwood ether, including a mixing tank, a discharge port installed at the bottom of the mixing tank, and a support frame installed outside the mixing tank. It also includes a mounting plate fixedly connected to the outside of the mixing tank, a storage tank for storing raw materials installed on top of the mounting plate, a conveying assembly installed on the mixing tank, and a mixing assembly installed inside the mixing tank. The conveying assembly transports the raw materials from the storage tank into the mixing tank, and the mixing assembly mixes the incoming raw materials. By storing materials in multiple storage tanks for different categories, and coordinating with a conveying pump to synchronously transport raw materials according to a preset ratio with a conveying accuracy of ±1%, the proportions strictly meet production requirements. Simultaneously, the first spiral blade inside the conveying cylinder achieves synchronous pre-mixing, avoiding the problem of intervals in multiple feedings. Local concentration fluctuations of the raw materials are controlled within 5%, significantly reducing the occurrence of side reactions, and increasing the purity of the methyl cedarwood ether product to over 98%.

Description

Technical Field

[0001] This utility model relates to the field of methyl cedarwood ether production technology, specifically to a mixing device for raw materials in methyl cedarwood ether production. Background Technology

[0002] In the production of methyl cedarwood ether, it is necessary to mix various raw materials such as cedarwood alcohol and methylating reagent in a precise ratio. This is a key step to ensure the purity and yield of the product. If manual stirring or simple mixing methods are used, it is not only inefficient and difficult to adapt to the needs of large-scale production, but also prone to insufficient reaction due to uneven mixing of raw materials, resulting in impurities that affect product quality. Therefore, a mixing device is required.

[0003] In existing technologies, the accuracy of multi-component raw material proportioning and the synchronization of mixing are unbalanced. The production of methyl cedarwood ether requires the addition of multiple raw materials such as cedarwood alcohol, dimethyl sulfate, and alkaline catalyst in strict proportions. Traditional equipment often adopts a manual feeding method in stages, adding one raw material at a time and stirring before adding another. This not only easily leads to excessively high local raw material concentrations due to the feeding interval, causing side reactions, but also may compromise the accuracy of proportioning due to human measurement errors. A single stirring direction makes it difficult for the later-added raw materials to quickly integrate into the already stirred system, forming "local agglomeration" and affecting the mixing effect. Utility Model Content

[0004] The purpose of this invention is to provide a mixing device for raw materials in the production of methyl cedar ether, so as to solve the problems mentioned in the background art, such as insufficient synchronization when adding multiple sets of raw materials and the influence of a single stirring direction on the mixing effect.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a mixing device for raw materials in the production of methyl cedar ether, comprising a mixing tank, a discharge port installed at the bottom of the mixing tank, and a support frame installed outside the mixing tank, further comprising an installation plate fixedly connected to the outside of the mixing tank, a storage tank for storing raw materials installed on the top of the installation plate, a conveying assembly installed on the mixing tank, and a mixing assembly installed inside the mixing tank, wherein the raw materials inside the storage tank are conveyed into the interior of the mixing tank by the conveying assembly, and the raw materials entering are mixed by the mixing assembly.

[0006] Based on the preferred embodiment of this technical solution, there are several storage tanks, and all of the storage tanks are mounted on the mounting plate.

[0007] Based on the preferred embodiment of this technical solution, the conveying assembly includes a conveying cylinder installed on a mixing tank, a first motor fixedly connected to the conveying cylinder, a first spiral blade fixedly connected to the output end of the first motor, a conveying pump installed on the top of the mounting plate, and a connecting pipe installed between the output end of the conveying pump and the conveying cylinder. The storage tank is connected to the input end of the conveying pump. The conveying pump conveys the raw materials into the conveying cylinder. The first motor drives the first spiral blade to rotate inside the conveying cylinder. The raw materials are conveyed by the blade while the raw materials are premixed.

[0008] Based on the preferred embodiment of this technical solution, the conveying cylinder has a cavity inside that is adapted to the first helical blade, and the first helical blade is installed inside the cavity.

[0009] According to the preferred embodiment of this technical solution, the mixing component includes a second motor fixedly connected to the top of the mixing tank, a rotating shaft fixedly connected to the output end of the second motor, a second spiral blade fixedly connected to the rotating shaft, a third spiral blade mounted on the rotating shaft, and a stirring rod mounted on the rotating shaft. The second motor drives the rotating shaft, together with the second spiral blade, the third spiral blade, and the stirring rod, to rotate synchronously inside the mixing tank.

[0010] In a preferred embodiment of this technical solution, the second helical blade and the third helical blade are mounted on the rotating shaft in opposite directions.

[0011] In this preferred embodiment of the technical solution, three stirring rods are provided, and the three stirring rods are evenly distributed in a circumferential array on the rotating shaft. Compared with the prior art, the beneficial effects of this utility model are: 1. By classifying and storing materials in multiple storage tanks, and cooperating with the conveying pump to synchronously convey raw materials according to the preset ratio, the conveying accuracy reaches ±1%, ensuring that the ratio strictly meets the production requirements. At the same time, the first spiral blade in the conveying cylinder realizes synchronous premixing, avoiding the problem of interval of feeding in batches. The local concentration fluctuation of raw materials is controlled within 5%, which greatly reduces the occurrence of side reactions and improves the purity of methyl cedarwood ether product to over 98%.

[0012] 2. By using the second and third spiral blades rotating in opposite directions to create vertical convection of the raw materials, combined with the shearing and stirring of the three circumferential array stirring rods, a "convection + circumferential" two-dimensional mixing system is constructed, achieving a mixing uniformity of over 95%. Compared with the traditional single stirring method, the mixing time is shortened by 40%, and there are no dead zones in the mixing, completely solving the problem of raw material agglomeration. Attached Figure Description

[0013] Figure 1 A schematic diagram of one embodiment of the mixing device for raw materials in the production of methyl cedar ether according to this utility model; Figure 2 This is a schematic diagram of the conveying component structure of this utility model; Figure 3This is a cross-sectional view of the conveyor cylinder of this utility model; Figure 4 This is a cross-sectional view of the mixing tank of this utility model; Figure 5 This is a schematic diagram of the stirring rod structure of this utility model.

[0014] In the diagram: 1. Mixing tank; 21. Mounting plate; 22. Storage tank; 23. Discharge port; 24. Support frame; 31. Conveying cylinder; 32. First motor; 33. First spiral blade; 34. Conveying pump; 35. Connecting pipe; 41. Second motor; 42. Rotating shaft; 43. Second spiral blade; 44. Third spiral blade; 45. Stirring rod. Detailed Implementation

[0015] 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.

[0016] Please see Figure 1 - Figure 5 This utility model provides an embodiment of a mixing device for raw materials in the production of methyl cedar ether, comprising a mixing tank 1, a discharge port 23 installed at the bottom of the mixing tank 1, and a support frame 24 installed outside the mixing tank 1. It also includes a mounting plate 21 fixedly connected to the outside of the mixing tank 1, a storage tank 22 installed on the top of the mounting plate 21 for storing raw materials, a conveying assembly installed on the mixing tank 1, and a mixing assembly installed inside the mixing tank 1. The conveying assembly conveys the raw materials from the storage tank 22 into the mixing tank 1, and the mixing assembly mixes the incoming raw materials. The top of the mixing tank 1 is provided with a feed port, through which other raw materials can be added into the mixing tank 1 for mixing. Tank 1 is made of 304 stainless steel, which is resistant to corrosion from raw materials such as cedarwood alcohol and dimethyl sulfate in the production of methyl cedarwood ether, ensuring long-term stable use; the support frame 24 is welded from Q235 steel plate with a thickness of 8-10mm, which has a strong load-bearing capacity and can stably support the weight of mixing tank 1 and the raw materials inside; the mounting plate 21 is made of aluminum alloy, which is lightweight and strong, and is easy to fix storage tank 22; a butterfly valve is installed at the discharge port 23, which can accurately control the discharge speed of the mixed raw materials and avoid waste caused by excessive discharge; some parts of storage tank 22 are made of transparent polypropylene, which has good light transmission, making it easy for staff to check the remaining amount of raw materials in real time, and is resistant to chemical corrosion and suitable for storing a variety of raw materials.

[0017] Please see Figure 2A further solution based on this embodiment is as follows: Several storage tanks 22 are provided, and all of the storage tanks 22 are installed on the mounting plate 21. The number of storage tanks 22 matches the types of raw materials required for the production of methyl cedarwood ether, usually 3-4, to store cedarwood alcohol, dimethyl sulfate, alkaline catalyst, etc., respectively, to avoid mixing of different raw materials; the name of the raw material and the scale line are marked on the outside of each storage tank 22, with a scale line accuracy of 10mL, to facilitate accurate metering of the feeding amount and ensure the accuracy of the ratio.

[0018] Please see Figure 2 - Figure 3 A further embodiment of this solution is as follows: the conveying assembly includes a conveying cylinder 31 mounted on the mixing tank 1, a first motor 32 fixedly connected to the conveying cylinder 31, a first spiral blade 33 fixedly connected to the output end of the first motor 32, a conveying pump 34 mounted on the top of the mounting plate 21, and a connecting pipe 35 installed between the output end of the conveying pump 34 and the conveying cylinder 31. The storage tank 22 is connected to the input end of the conveying pump 34. The conveying pump 34 conveys the raw materials into the conveying cylinder 31. The first motor 32 drives the first spiral blade 33 to rotate inside the conveying cylinder 31. While conveying the raw materials through the blade, the material is simultaneously... Several raw materials are premixed. The conveying cylinder 31 is made of 304 stainless steel with a smooth inner wall that prevents material from adhering and avoids material residue affecting the mixing ratio. The first spiral blade 33 is also made of 304 stainless steel with a blade pitch of 50-80mm, which can fully stir the raw materials during the conveying process, achieving a premixing uniformity of over 80%. The conveying pump 34 is a metering pump with a flow control accuracy of ±1%, which can accurately convey each raw material according to the preset ratio for the production of methyl cedar ether, avoiding metering errors caused by manual feeding. The connecting pipe 35 is made of PVC-U pipe, which is resistant to chemical corrosion and has a smooth inner wall, reducing the resistance to material conveying and preventing material adhesion.

[0019] Please see Figure 3 A further solution based on this embodiment is as follows: the conveying cylinder 31 has a cavity adapted to the first spiral blade 33, and the first spiral blade 33 is installed inside the cavity. The gap between the inner diameter of the cavity and the outer diameter of the first spiral blade 33 is controlled at 0.5-1mm, which ensures that the first spiral blade 33 rotates smoothly and that the blade is in full contact with the inner wall of the cavity, avoiding the residue of raw materials in the gap, and improving the premixing effect and raw material utilization rate.

[0020] Please see Figure 4 - Figure 5A further embodiment of this solution is as follows: The mixing assembly includes a second motor 41 fixedly connected to the top of the mixing tank 1, a rotating shaft 42 fixedly connected to the output end of the second motor 41, a second spiral blade 43 fixedly connected to the rotating shaft 42, a third spiral blade 44 mounted on the rotating shaft 42, and a stirring rod 45 mounted on the rotating shaft 42. The second motor 41 drives the rotating shaft 42, together with the second spiral blade 43, the third spiral blade 44, and the stirring rod 45, to rotate synchronously inside the mixing tank 1. The second motor 41 is a geared motor with an output speed of 10-20 r / min. The speed is stable and can prevent the raw materials from splashing due to high-speed stirring. The rotating shaft 42, the second spiral blade 43, the third spiral blade 44, and the stirring rod 45 are all made of 304 stainless steel, which is corrosion-resistant and has high strength, and is not easily deformed during long-term stirring. The length of the stirring rod 45 is adapted to the inner diameter of the mixing tank 1, and can penetrate into the edge area of ​​the mixing tank 1 to avoid dead corners in the stirring.

[0021] Please see Figure 4 A further solution based on this embodiment is as follows: the second helical blade 43 and the third helical blade 44 are installed on the rotating shaft 42 in opposite directions of rotation. The second helical blade 43 is right-handed and can transport the raw materials at the bottom of the mixing tank 1 upwards; the third helical blade 44 is left-handed and can transport the raw materials at the top of the mixing tank 1 downwards. The two work together to form an upward and downward convection circulation of the raw materials, breaking the limitation of a single stirring direction, avoiding the "local agglomeration" of the raw materials, and improving the mixing uniformity to more than 95%.

[0022] Please see Figure 4 - Figure 5 A further solution based on this embodiment is as follows: three stirring rods 45 are provided, and the three stirring rods 45 are evenly distributed in a circumferential array on the rotating shaft 42. The three stirring rods 45 are at an angle of 120°, which can realize 360° stirring without dead angle inside the mixing tank 1. Combined with the spiral blades of upper and lower convection, the uniformity of raw material mixing is further improved. The surface of the stirring rod 45 is provided with arc-shaped ribs, which can enhance the shearing and stirring effect on the raw materials, especially suitable for mixing raw materials with high viscosity. The stirring rod 45 is also provided with serrations, which can break up the catalyst particles accumulated at the bottom of the tank.

[0023] Working Principle: When using the raw material mixing device for methyl cedar ether production, firstly, according to the production formula, the corresponding raw materials are injected into several storage tanks 22 on the mounting plate 21. The amount of each raw material is confirmed by the scale lines on the storage tanks 22 to ensure accurate initial proportions. Then, the conveying assembly is started, and the valves between each storage tank 22 and the conveying pump 34 are opened. The conveying pump 34 simultaneously conveys each raw material to the connecting pipe 35 according to the preset ratio. The raw materials flow into the conveying cylinder 31 through the connecting pipe 35. At the same time, the first motor 32 is started, and the first motor 32 drives the first spiral blade 33 to rotate in the cavity of the conveying cylinder 31. During the forward conveying of the raw materials, the spiral blade performs preliminary stirring and premixing of the multi-component raw materials. The premixed raw materials are then pushed from the conveying cylinder 31 by the blade. The raw material enters the mixing tank 1 from the end. After entering the mixing tank 1, the mixing component is started and the second motor 41 runs, driving the rotating shaft 42 and the second spiral blade 43, third spiral blade 44 and stirring rod 45 on the shaft to rotate synchronously. Since the second spiral blade 43 and the third spiral blade 44 rotate in opposite directions, the second spiral blade 43 conveys the raw material at the bottom of the mixing tank 1 upward, and the third spiral blade 44 conveys the raw material at the top downward, forming an upward and downward convection circulation of the raw material. At the same time, the three circumferentially distributed stirring rods 45 perform circumferential shearing and stirring of the raw material during the convection process, breaking the "local agglomeration" of the raw material and achieving multi-dimensional full mixing. After the mixing is completed, the butterfly valve of the discharge port 23 at the bottom of the mixing tank 1 is opened, and the uniformly mixed raw material is discharged through the discharge port 23.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A mixing device for raw materials in the production of methyl cedar ether, comprising a mixing tank (1), a discharge port (23) installed at the bottom of the mixing tank (1), and a support frame (24) installed outside the mixing tank (1), characterized in that: It also includes a mounting plate (21) fixedly connected to the outside of the mixing tank (1), a storage tank (22) installed on the top of the mounting plate (21) for storing raw materials, a conveying assembly installed on the mixing tank (1) and a mixing assembly installed inside the mixing tank (1). The raw materials inside the storage tank (22) are conveyed into the interior of the mixing tank (1) by the conveying assembly, and the raw materials are mixed by the mixing assembly. There are several storage tanks (22), and all of the storage tanks (22) are mounted on the mounting plate (21); The conveying assembly includes a conveying cylinder (31) mounted on a mixing tank (1), a first motor (32) fixedly connected to the conveying cylinder (31), a first spiral blade (33) fixedly connected to the output end of the first motor (32), a conveying pump (34) mounted on the top of a mounting plate (21), and a connecting pipe (35) installed between the output end of the conveying pump (34) and the conveying cylinder (31). The storage tank (22) is connected to the input end of the conveying pump (34). The raw materials are conveyed into the conveying cylinder (31) by the conveying pump (34). The first motor (32) drives the first spiral blade (33) to rotate inside the conveying cylinder (31). The raw materials are conveyed by the blade while the raw materials are premixed.

2. The mixing device for raw materials in the production of methyl cedar ether according to claim 1, characterized in that: The conveying cylinder (31) has a cavity inside that is adapted to the first helical blade (33), and the first helical blade (33) is installed inside the cavity.

3. The mixing device for raw materials in the production of methyl cedar ether according to claim 2, characterized in that: The mixing assembly includes a second motor (41) fixedly connected to the top of the mixing tank (1), a rotating shaft (42) fixedly connected to the output end of the second motor (41), a second helical blade (43) fixedly connected to the rotating shaft (42), a third helical blade (44) mounted on the rotating shaft (42), and a stirring rod (45) mounted on the rotating shaft (42). The second motor (41) drives the rotating shaft (42) together with the second helical blade (43), the third helical blade (44) and the stirring rod (45) to rotate synchronously inside the mixing tank (1).

4. The mixing device for raw materials in the production of methyl cedar ether according to claim 3, characterized in that: The second helical blade (43) and the third helical blade (44) are mounted on the rotating shaft (42) in opposite directions.

5. The mixing device for raw materials in the production of methyl cedar ether according to claim 4, characterized in that: There are three stirring rods (45), and the three stirring rods (45) are evenly distributed in a circumferential array on the rotating shaft (42).

Images