Feeding device for preparation of methoxydihydropyran

Abstract

The utility model discloses a methoxydihydropyran preparation feeding device which comprises a rectifying tower body, a feeding pipe is connected to one side of the rectifying tower body, a feeding pump is arranged on the feeding pipe, and feeding assemblies are arranged at the upper end and the lower end of the feeding pipe. The feeding assembly comprises an input pipe and an output pipe which are connected with the feeding pipe, a one-way valve is arranged on the input pipe, one end of the input pipe is connected with a water inlet of a filter box, the filter box is arranged between the input pipe and the output pipe, an opening is formed in the top of the filter box, a filter frame is inserted into the opening, and one end of the filter frame penetrates through the filter box and is located on the outer wall of the filter box. The outer wall of the opening of the filter box is sleeved with a sealing ring, the outer wall of the sealing ring is sleeved with a sealing cover, the sealing cover is in threaded connection with the filter box, a filter frame is arranged in the filter box, the section view of the filter frame is of a rectangular structure, an opening is formed in one side of the filter frame, and a filter screen is arranged on one side of the filter frame. The device can improve the stability in the material feeding process and improve the feeding working efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of methoxydihydropyran preparation, in particular to a methoxydihydropyran preparation feeding device. Background Art

[0002] Methoxydihydropyran (MDHP) is an organic compound and a specific derivative of dihydropyran compounds. Its molecular structure contains a dihydropyran ring and a methoxy (-OCH3) functional group.

[0003] A distillation tower is required in the preparation process of methoxydihydropyran. When the material enters the distillation tower, a material pump is required to transport and feed the material. However, the material contains particles, which leads to uneven mixing and easily causes blockage of the material pump and unstable feeding. Therefore, improvements are needed. Utility Model Content

[0004] The utility model aims to provide a feeding device for preparing methoxydihydropyran, so as to solve the problem in the background technology that particles in the material easily block the material pump and cause unstable feeding.

[0005] To achieve the above object, the utility model provides the following technical solution: a methoxydihydropyran preparation feeding device, comprising a distillation tower body, a feeding pipe is connected to one side of the distillation tower body, a feeding pump is arranged on the feeding pipe, and feeding components are arranged at both upper and lower ends of the feeding pipe;

[0006] The feeding assembly comprises an input pipe and an output pipe connected to the feed pipe, a filter box is arranged between the input pipe and the output pipe, a filter frame is arranged inside the filter box, and a filter screen is arranged on one side of the filter frame.

[0007] Preferably, a one-way valve is provided on the input pipe, and one end of the input pipe is connected to the water inlet of the filter box.

[0008] Preferably, the filter box has an opening on the top, a filter frame is inserted into the opening, one end of the filter frame passes through the filter box and is located on the outer wall of the filter box, a sealing ring is provided on the outer wall of the filter box opening, a sealing cover is provided on the outer wall of the sealing ring, and the sealing cover is threadedly connected to the filter box.

[0009] Preferably, the filter frame is a rectangular structure when viewed in cross section, an opening is provided on one side of the filter frame, and a baffle is rotatably connected to the inner side of the opening.

[0010] Preferably, a support spring is fixedly connected to the inner side of one end of the baffle, and one end of the support spring is fixedly connected to the inner wall of the filter frame.

[0011] Preferably, an opening is also provided on the other side of the filter frame, and a filter screen is fixedly connected to the inner wall of the opening.

[0012] Preferably, the filter frame and the filter box are movably connected.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] (1) This device can improve the stability of the material feeding process and improve the feeding efficiency.

[0015] (2) This device arranges an input pipe on the feed pipe, and filter boxes are arranged on both the input pipe and the feed pipe. Before entering the feeding pump, the material first enters the filter box and is filtered by the filter frame, and then is fed into the distillation tower body through the feeding pump, thereby avoiding clogging of the feeding pump.

[0016] (3) By setting input pipes at both ends of the feed pipe, the device can filter the material in the feed pipe through the input pipe diversion, thereby improving the filtering effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of a methoxydihydropyran preparation and feeding device of the utility model;

[0018] Figure 2 This is a cross-sectional view of a feeding component of a feeding device for preparing methoxydihydropyran according to the utility model;

[0019] Figure 3 This is a top view of a filter box of a methoxydihydropyran preparation and feeding device of the utility model;

[0020] Figure 4 This is a top-sectional view of a filter box of a methoxydihydropyran preparation and feeding device of the utility model.

[0021] In the figure: 1. distillation tower body; 2. feed pipe; 3. feeding assembly; 31. input pipe; 32. one-way valve; 33. filter box; 34. sealing cover; 35. sealing ring; 36. filter frame; 37. output pipe; 38. baffle; 39. support spring; 310. filter screen; 4. feeding pump. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-4 The utility model provides a technical solution: a methoxydihydropyran preparation feeding device, comprising a distillation tower body 1, a feeding pipe 2 is connected to one side of the distillation tower body 1, a feeding pump 4 is arranged on the feeding pipe 2, and a feeding assembly 3 is arranged at both upper and lower ends of the feeding pipe 2;

[0024] The feeding assembly 3 includes an input pipe 31 and an output pipe 37 connected to the feed pipe 2, the input pipe 31 is provided with a one-way valve 32, and one end of the input pipe 31 is connected to the water inlet of the filter box 33; this structure can make the material flow in one direction by setting the one-way valve 32 to avoid material backflow; by setting the input pipe 31, the material in the feed pipe 2 can be shunted and filtered to improve the filtering efficiency; a filter box 33 is provided between the input pipe 31 and the output pipe 37, the top of the filter box 33 is opened, and a filter frame 36 is inserted in the opening, one end of the filter frame 36 passes through the filter box 33 and is located on the outer wall of the filter box 33, the outer wall of the opening of the filter box 33 is provided with a sealing ring 35, and the outer wall of the sealing ring 35 is provided with a sealing cover 34, and the sealing cover 34 is threadedly connected to the filter box 33; the sealing cover 34 can be connected to the filter box 33 by setting the sealing cover 34; this structure can improve the sealing performance of the connection between the sealing cover 34 and the filter box 33 by setting the sealing ring 35; the filter box 33 is provided with a filter Frame 36, filter frame 36 is cross-sectionally formed into a rectangular structure, one side of the filter frame 36 is provided with an opening, the inner side of the opening is rotatably connected with a baffle 38; the inner side of one end of the baffle 38 is fixedly connected with a support spring 39, one end of the support spring 39 is fixedly connected to the inner wall of the filter frame 36; this structure can support the baffle 38 to maintain an upright state and close the opening on one side of the filter frame 36 by providing a support spring 39; when the baffle 38 is subjected to pressure, the baffle 38 rotates to one side, the support spring 39 is compressed, and the baffle 38 is opened; the other side of the filter frame 36 is also provided with an opening, the inner wall of the opening is fixedly connected with a filter screen 310; this structure can intercept particles in the material by providing the filter screen 310; the filter frame 36 is movably connected to the filter box 33; the filter frame 36 of this structure can be taken out from the inside of the filter box 33 for cleaning; a filter screen 310 is provided on one side of the filter frame 36; a filter box 33 is also provided on the feed pipe 2 of the device for diverting particles in the filter material.

[0025] Working principle: When the methoxydihydropyran is used to prepare the feeding device, first, after the feeding pump 4 is started, the material flows from one end of the feed pipe 2 to the end of the distillation tower body 1. During the flow of the material, part of the material is diverted through the input pipe 31 and enters the filter box 33, and the material in the feed pipe 2 also enters the filter box 33. When the material enters the filter box 33, the baffle 38 is pushed to rotate and open by the impact force. At this time, the support spring 39 is compressed. When the baffle 38 is opened, the material enters the filter frame 36 and then is filtered at the filter screen 310 and then re-collected into the feed pipe 2 through the output pipe 37. Then, it enters the distillation tower body 1 through the feeding pump 4, and the feeding work is successfully completed. When the filter frame 36 needs to be cleaned, the sealing cover 34 is rotated to remove the sealing cover 34 and the sealing ring 35, and then the filter frame 36 is pulled out from the filter box 33 for cleaning.

[0026] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A feeding device for preparing methoxydihydropyran, comprising a distillation tower body (1), one side of the distillation tower body (1) is connected to a feeding pipe (2), and a feeding pump (4) is arranged on the feeding pipe (2), characterized in that: The upper and lower ends of the feed pipe (2) are both provided with feed components (3); The feeding assembly (3) comprises an input pipe (31) and an output pipe (37) connected to the feeding pipe (2); a filter box (33) is arranged between the input pipe (31) and the output pipe (37); a filter frame (36) is arranged inside the filter box (33); and a filter screen (310) is arranged on one side of the filter frame (36).

2. A methoxydihydropyran preparation and feeding device according to claim 1, characterized in that: The input pipe (31) is provided with a one-way valve (32), and one end of the input pipe (31) is connected to the water inlet of the filter box (33).

3. A methoxydihydropyran preparation and feeding device according to claim 1, characterized in that: The filter box (33) has an opening at the top, a filter frame (36) is inserted into the opening, one end of the filter frame (36) passes through the filter box (33) and is located on the outer wall of the filter box (33), a sealing ring (35) is sleeved on the outer wall of the opening of the filter box (33), a sealing cover (34) is sleeved on the outer wall of the sealing ring (35), and the sealing cover (34) is threadedly connected to the filter box (33).

4. A methoxydihydropyran preparation and feeding device according to claim 1, characterized in that: The filter frame (36) is a rectangular structure when viewed in cross section. An opening is provided on one side of the filter frame (36), and a baffle (38) is rotatably connected to the inside of the opening.

5. A methoxydihydropyran preparation and feeding device according to claim 4, characterized in that: A support spring (39) is fixedly connected to the inner side of one end of the baffle (38), and one end of the support spring (39) is fixedly connected to the inner wall of the filter frame (36).

6. A methoxydihydropyran preparation and feeding device according to claim 1, characterized in that: An opening is also provided on the other side of the filter frame (36), and a filter screen (310) is fixedly connected to the inner wall of the opening.

7. A methoxydihydropyran preparation and feeding device according to claim 1, characterized in that: The filter frame (36) is movably connected to the filter box (33).

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