A device for filtering methyl anthranilate production

Abstract

The utility model relates to a methyl anthranilate production filtering device belongs to the technical field of filter dehydration equipment, including filter dehydration jar, inlet pipe, outlet pipe, separating funnel, filter dehydration pipe, orifice plate, is equipped with the bearing cylinder in filter dehydration pipe, is equipped with anhydrous sodium sulfate in bearing cylinder, the bottom of filter dehydration pipe is equipped with the support net board, and the inner wall of filter dehydration jar below orifice plate is fixed with distribution ring pipe, and the inside bottom of distribution ring pipe is evenly equipped with distribution hole, and distribution ring pipe is connected with dehydration hot -blast inlet pipe, and the top of filter dehydration jar is equipped with the exhaust pipe. The utility model discloses set up separating funnel in filter dehydration jar, and the filter dehydration pipe is evenly distributed on separating funnel, and then is equipped with the bearing cylinder of bearing anhydrous sodium sulfate in each filter dehydration pipe, can filter dehydration to the material of partial flow, and the efficiency is higher, and can pass through dehydration hot -blast inlet pipe and pass into the hot air in filter dehydration jar, and the moisture in anhydrous sodium sulfate is taken off, and is repeatedly used.

Description

Technical Field

[0001] This utility model belongs to the technical field of filtration and dehydration equipment, specifically relating to a filtration device for the production of methyl anthranilate. Background Technology

[0002] Methyl anthranilate is an important intermediate in organic synthesis. During its production, after the upper organic phase is collected and allowed to separate, it is washed with warm water to remove residual catalyst. Then, it is passed through a tank containing anhydrous sodium sulfate for filtration and dehydration. Traditional filtration and dehydration methods often involve passing the material through a tank containing anhydrous sodium sulfate, which has the following problems: 1. Centralized filtration and dehydration with anhydrous sodium sulfate is inefficient; 2. Anhydrous sodium sulfate absorbs water during use, reducing the filtration and dehydration effect. Utility Model Content

[0003] Therefore, it is necessary to provide a filtration device for the production of methyl anthranilate to address the problems of the existing technology.

[0004] To solve the problems of the existing technology, the technical solution adopted by this utility model is as follows:

[0005] A filtration device for the production of methyl anthranilate includes a filtration and dehydration tank. The top of the filtration and dehydration tank has an inlet pipe, and the bottom has an outlet pipe. A separating funnel is fixed to the upper part of the filtration and dehydration tank, and multiple filtration and dehydration tubes are evenly fixed on the separating funnel. A perforated plate is fixed to the lower part of the filtration and dehydration tank. A support cylinder, removable from the bottom, is installed inside each filtration and dehydration tube. Anhydrous sodium sulfate is placed inside the support cylinder. A support mesh plate is installed at the bottom of the filtration and dehydration tube. A distribution ring pipe is fixed to the inner wall of the filtration and dehydration tank below the perforated plate. Distribution holes are evenly distributed on the bottom inner side of the distribution ring pipe. The distribution ring pipe is connected to a dehydration hot air inlet pipe. An exhaust pipe is located at the top of the filtration and dehydration tank.

[0006] As a preferred embodiment, the filtration and dehydration tank includes upper and lower ends, with a filter cylinder connected between the two ends by flanges. A separating funnel and an orifice plate are fixed on the inner walls of the upper and lower ends of the filter cylinder, respectively, and an inlet pipe and an outlet pipe are fixed on the upper and lower ends, respectively.

[0007] As a preferred option, the outer side of the support mesh plate is provided with a fixing flange that is fixed to the bottom of the perforated plate by bolts, which facilitates the fixed installation of the support mesh plate.

[0008] As a preferred embodiment, multiple support cylinders are provided in the vertical direction. Each support cylinder has a sealing rubber layer on its exterior to prevent leakage. A support filter plate is fixed at the bottom of each support cylinder to block anhydrous sodium sulfate particles. Support rods are fixed between adjacent support cylinders and between the bottom support cylinder and the support mesh plate to facilitate support of the support cylinders.

[0009] As a preferred option, the support rod has a two-section structure. The connection between the upper and lower sections is provided with a connecting boss and a connecting groove. The connecting boss and the connecting groove are provided with connecting threads. This structure allows the bearing cylinder to be easily removed from the bottom when replacing anhydrous sodium sulfate. The upper support rod is fixed at the bottom center of the outer wall of the bearing cylinder, and the lower support rod is fixed at the bottom center of the inner wall of the bearing cylinder or on the support mesh plate.

[0010] As a preferred embodiment, a vibration motor is fixed to the outer bottom of the separating funnel, and a maintenance window is provided on the upper part of the filtration and dehydration tank. By increasing vibration, the efficiency of filtration and dehydration is improved.

[0011] As a preferred embodiment, a support frame is fixed to the upper outer wall of the filter dehydration tank, and air springs are fixed to the four corners of the bottom of the support frame. Each air spring has a support leg fixed to its bottom, and a reinforcing rod is fixed between adjacent support legs to improve the vibration effect.

[0012] As a preferred embodiment, a guide cone is provided above the separating funnel, and a fixing rod is fixed to the top of the guide cone. The top of the fixing rod is fixed to the filter dewatering tank. The material can be evenly guided to the outside through the guide cone, so that the material can be evenly distributed into the filter dewatering pipe.

[0013] The advantages of this utility model compared with the prior art are:

[0014] By setting up a separating funnel inside the filtration and dehydration tank, with filtration and dehydration tubes evenly distributed on the separating funnel, and then setting up a support cylinder to carry anhydrous sodium sulfate in each filtration and dehydration tube, the material can be filtered and dehydrated in a separate manner with high efficiency. Furthermore, hot air can be introduced into the filtration and dehydration tank through the dehydration hot air inlet pipe to remove the water from the anhydrous sodium sulfate, allowing it to be reused. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 yes Figure 1 Partial structural diagram Figure 1 ;

[0017] Figure 3 yes Figure 1 Partial structural diagram Figure 2 ;

[0018] The numbers on the map are:

[0019] 1. Inlet pipe; 2. Guide cone; 3. End; 4. Separating funnel; 5. Filter dewatering pipe; 6. Bearing cylinder; 7. Support frame; 8. Air spring; 9. Support leg; 10. Reinforcing support rod; 11. Filter cylinder; 12. Orifice plate; 13. Outlet pipe; 14. Support mesh plate; 15. Distribution ring pipe; 16. Dewatering hot air inlet pipe; 17. Support tie rod; 18. Maintenance window; 19. Vibration motor; 20. Fixing rod; 21. Sealing rubber layer; 22. Support filter plate; 23. Exhaust pipe. Detailed Implementation

[0020] To further understand the features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments.

[0021] Example 1, Reference Figures 1 to 3 A filtration device for the production of methyl anthranilate includes a filtration and dehydration tank. The top of the filtration and dehydration tank has an inlet pipe 1, and the bottom has an outlet pipe 13. A separating funnel 4 is fixed to the upper part of the filtration and dehydration tank, and multiple filtration and dehydration pipes 5 are evenly fixed on the separating funnel 4. A perforated plate 12 is fixed to the lower part of the filtration and dehydration tank. A support cylinder 6, which can be removed from the bottom, is located inside the filtration and dehydration pipes 5. Anhydrous sodium sulfate is contained inside the support cylinder 6. A support mesh plate 14 is located at the bottom of the filtration and dehydration pipes 5. A distribution ring pipe 15 is fixed to the inner wall of the filtration and dehydration tank below the perforated plate 12. Distribution holes are evenly distributed on the bottom inner side of the distribution ring pipe 15. The distribution ring pipe 15 is connected to a dehydration hot air inlet pipe 16. An exhaust pipe 23 is located at the top of the filtration and dehydration tank.

[0022] During operation, the washed methyl anthranilate liquid enters through inlet pipe 1 and falls onto separatory funnel 4. After being split, it enters multiple filtration and dehydration pipes 5, where it comes into contact with anhydrous sodium sulfate in support cylinder 6, removing the water. The liquid then falls to the bottom of the filtration and dehydration tank and is discharged through outlet pipe 13, completing the filtration and dehydration process. When backflushing is required after a period of use, the valves on inlet pipe 1 and outlet pipe 13 are closed, and the valves on hot air inlet pipe 16 and exhaust pipe 23 are opened. Hot air enters distribution ring pipe 15, is evenly distributed in the bottom of the filtration and dehydration tank, and then enters support cylinder 6 to dry the anhydrous sodium sulfate with hot air, removing the water.

[0023] In Example 2, based on Example 1, the filtration and dehydration tank includes upper and lower end caps 3, and a filter cylinder 11 is connected between the two end caps 3 by a flange. The separating funnel 4 and the orifice plate 12 are respectively fixed on the inner walls of the upper and lower ends of the filter cylinder 11, and the inlet pipe 1 and the outlet pipe 13 are respectively fixed on the upper and lower end caps 3.

[0024] The outer side of the support mesh plate 14 is provided with a fixing flange that is fixed to the bottom of the perforated plate 12 by bolts. After the bearing cylinder 6 is installed into the filter dewatering pipe 5, the support mesh plate 14 can be fitted onto the bottom of the filter dewatering pipe 5, and the fixing flange can be fixed to the perforated plate 12 by bolts.

[0025] Multiple support cylinders 6 are arranged vertically. Each support cylinder 6 has a sealing rubber layer 21 on its exterior. The outer wall of the sealing rubber layer 21 is interference-fitted with the inner wall of the support cylinder 6. A support filter plate 22 is fixed to the bottom of each support cylinder 6. Support rods 17 are fixed between adjacent support cylinders 6 and between the bottommost support cylinder 6 and the support mesh plate 14. Anhydrous sodium sulfate is granular, and the particle size of anhydrous sodium sulfate is larger than the filter pore diameter of the support filter plate 22.

[0026] The support rod 17 has a two-section structure. The connection between the upper and lower sections has a connecting boss and a connecting groove, both with connecting threads. The upper section of the support rod 17 is fixed to the bottom center of the outer wall of the bearing cylinder 6, while the lower section is fixed to the bottom center of the inner wall of the bearing cylinder 6 or to the support mesh plate 14. When replacing the anhydrous sodium sulfate, the lower end 3 can be removed, and then the support mesh plate 14 can be pulled down, pulling out the upper bearing cylinder 6 via the support rod 17. Each section of the support rod 17 can be pulled down to separate it until the entire bearing cylinder 6 is removed, allowing for the replacement of the anhydrous sodium sulfate.

[0027] A vibration motor 19 is fixed to the outer bottom of the separating funnel 4, and a maintenance window 18 is provided on the upper part of the filtration and dehydration tank. During operation, the vibration motor 19 starts and generates vibration, which drives the separating funnel 4 and the filtration and dehydration tube 5 to vibrate, thereby accelerating the filtration and dehydration speed.

[0028] A support frame 7 is fixed on the upper outer wall of the filter dehydration tank. Air springs 8 are fixed at the four corners of the bottom of the support frame 7. A support leg 9 is fixed at the bottom of each air spring 8. A reinforcing support rod 10 is fixed between adjacent support legs 9.

[0029] A guide cone 2 is provided above the separating funnel 4, and a fixing rod 20 is fixed to the top of the guide cone 2. The top of the fixing rod 20 is fixed to the filter dewatering tank. The liquid material entering through the inlet pipe 1 will fall to the top of the separating funnel 4, and then be evenly distributed to the surrounding area through the separating funnel 4, and then flow to the outer side of the top of the separating funnel 4 for uniform feeding.

[0030] The above embodiments only illustrate one or more implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A filtration apparatus for the production of methyl anthranilate, comprising a filtration and dehydration tank, wherein an inlet pipe (1) is provided at the top of the filtration and dehydration tank and an outlet pipe (13) is provided at the bottom of the filtration and dehydration tank, characterized in that: A separating funnel (4) is fixed at the top of the filtration dehydration tank. Multiple filtration dehydration tubes (5) are evenly fixed on the separating funnel (4). A perforated plate (12) is fixed at the bottom of the filtration dehydration tank. A support cylinder (6) that can be removed from the bottom is provided inside the filtration dehydration tube (5). Anhydrous sodium sulfate is provided inside the support cylinder (6). A support mesh plate (14) is provided at the bottom of the filtration dehydration tube (5). A distribution ring pipe (15) is fixed on the inner wall of the filtration dehydration tank below the perforated plate (12). Distribution holes are evenly provided on the bottom inner side of the distribution ring pipe (15). The distribution ring pipe (15) is connected to a dehydration hot air inlet pipe (16). An exhaust pipe (23) is provided at the top of the filtration dehydration tank.

2. The filtration device for producing methyl anthranilate according to claim 1, characterized in that, The filter dehydration tank includes upper and lower end caps (3), and a filter cylinder (11) is connected between the two end caps (3) by a flange. The separatory funnel (4) and the orifice plate (12) are respectively fixed on the inner walls of the upper and lower ends of the filter cylinder (11), and the inlet pipe (1) and the outlet pipe (13) are respectively fixed on the upper and lower end caps (3).

3. The filtration device for producing methyl anthranilate according to claim 1, characterized in that, The outer side of the support mesh plate (14) is provided with a fixed flange that is fixed to the bottom of the perforated plate (12) by bolts.

4. The filtration device for producing methyl anthranilate according to claim 2, characterized in that, Multiple bearing cylinders (6) are provided in the vertical direction. Each bearing cylinder (6) is provided with a sealing rubber layer (21) on the outside. Each bearing cylinder (6) is fixed with a support filter plate (22) at the bottom. Support rods (17) are fixed between adjacent bearing cylinders (6) and between the lowest bearing cylinder (6) and the support mesh plate (14).

5. The filtration device for producing methyl anthranilate according to claim 4, characterized in that, The support rod (17) is a two-section structure. The connection between the upper and lower sections is provided with a connecting boss and a connecting groove. The connecting boss and the connecting groove are provided with connecting threads. The upper section of the support rod (17) is fixed at the bottom center of the outer wall of the bearing cylinder (6), and the lower section of the support rod (17) is fixed at the bottom center of the inner wall of the bearing cylinder (6) or on the support mesh plate (14).

6. The filtration device for producing methyl anthranilate according to claim 1, characterized in that, A vibration motor (19) is fixed to the bottom outside of the separatory funnel (4), and a maintenance window (18) is provided on the upper part of the filter dehydration tank.

7. A filtration device for producing methyl anthranilate according to claim 6, characterized in that, A support frame (7) is fixed on the upper outer wall of the filter dehydration tank. Air springs (8) are fixed at the four corners of the bottom of the support frame (7). A support leg rod (9) is fixed at the bottom of each air spring (8). A reinforcing support rod (10) is fixed between adjacent support leg rods (9).

8. The filtration device for producing methyl anthranilate according to claim 1, characterized in that, The separatory funnel (4) is provided with a guide cone (2) above it. A fixing rod (20) is fixed to the top of the guide cone (2). The top of the fixing rod (20) is fixed to the filter dehydration tank.

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