5-hydroxymethylthiazole rectification device

Abstract

The utility model discloses a 5-hydroxymethylthiazole rectifying device, which belongs to the technical field of chemical equipment and comprises a rectifying unit and a filtering unit, the rectifying unit comprises a rectifying barrel and a filtering tank connected with the rectifying barrel, and the filtering unit comprises a limiting block fixedly mounted on the upper surface in the filtering tank. A connecting rope is connected to an opening of the limiting block, a positioning rod is connected to the end, away from the limiting block, of the connecting rope, a connecting opening is formed in the side face of the upper portion of the positioning rod, the bottom of the positioning rod is installed in the filter screen, and a first air cylinder is arranged on the inner wall of the filter tank; the reaction liquid filtering device has the advantages that impurity accumulation can be prevented, reaction liquid in the filter screen can be shaken, substance accumulation can be prevented, impurities in the reaction liquid can be better filtered, impurities in the reaction liquid can be intercepted, the filtering effect is good, the filtering effect is good, and the filtering effect is good. And the falling of the liquid is not influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical equipment, and particularly relates to a rectification device for 5-hydroxymethylthiazole. Background Art

[0002] 5-Hydroxymethylthiazole is an organic compound, and its chemical properties and uses are of great significance in the fields of chemistry and life sciences. The molecular formula of 5-hydroxymethylthiazole is C4H5NOS, and its molecular weight is 115.15. It is a light yellow oily liquid with specific physicochemical properties, such as a boiling point of 95-96 °C, a density of 1.32, good solubility in chloroform and methanol. In addition, it also has a specific acidity coefficient (pKa) and surface tension.

[0003] In the process of synthesizing 5-hydroxymethylthiazole, whether by ethanol esterification method, aqueous solution esterification method, "one-pot method" or resin-catalyzed hydrolysis method, the final steps include filtering and concentrating the reaction solution, then neutralizing it with sodium hydroxide to a pH of 9-10, and then using ethyl acetate for extraction to obtain the crude product.

[0004] The filtering part is relatively important. Usually, static filtering is used for filtering, and it is easy to have the situation of insufficient filtering, resulting in accumulation and blocking the reaction solution from falling.

[0005] Based on this, it is necessary to propose a rectification device that can better filter the reaction solution. Summary of the Utility Model

[0006] The purpose of the utility model is to provide a rectification device for 5-hydroxymethylthiazole, so as to solve the above technical problems to at least a certain extent and filter the reaction solution more fully.

[0007] To achieve the above purpose, the utility model provides the following technical solutions: including a rectification unit and a filtering unit, the rectification unit includes a rectification barrel and a filtering tank connected to the rectification barrel;

[0008] The filtering unit includes a limit block fixedly installed on the inner upper surface of the filtering tank. A connecting rope is connected to the opening of the limit block. One end of the connecting rope away from the limit block is connected to a positioning rod. A connecting port is arranged on the side of the upper part of the positioning rod. The bottom of the positioning rod is installed inside the filter screen. A first cylinder is arranged on the inner wall of the filtering tank. A spring is fixedly installed on the side of the first cylinder close to the filter screen. A second cylinder is arranged on the side of the filtering tank away from the first cylinder.

[0009] Preferably, the limit block is arranged in a concave shape, and the connecting rope passes through the concave part of the limit block.

[0010] Preferably, the connecting rope has a certain corrosion resistance and is soft.

[0011] Preferably, the filter screen is provided with a narrow mouth for filtration. The springs can all contact the outer wall of the filter screen, and the springs will not pop out near the filter screen. The side area of the spring tail end is larger than the side area of the narrow mouth of the filter screen.

[0012] Preferably, the first cylinder and the second cylinder are symmetrically installed obliquely with the filter screen as the center. Springs are installed at the extending ends of the first cylinder and the second cylinder.

[0013] Preferably, the side area of the spring is smaller than the side area of the filter screen, and the spring must contact the side of the filter screen.

[0014] Preferably, the rectification unit further includes a diversion pipe provided at the top and bottom of the filter tank. The bottom of the diversion pipe at the top of the filter tank must be within the opening range at the top of the filter screen.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] When the present utility model is in use, the diversion pipe injects the reaction liquid into the filter screen in the filter tank. The first cylinder drives the spring to extend and contact the filter screen at a relatively fast speed. The spring generates elastic potential energy with the filter screen in a short time and releases it, pushing the filter screen towards the position of the second cylinder. At this time, the second cylinder drives the spring to contract. When the filter screen contacts the spring on the second cylinder, the second cylinder extends the spring at a relatively fast speed. The spring contacts the filter screen in a short time, generates elastic potential energy and releases it, pushing the filter screen towards the position of the first cylinder, so that the filter screen can shake and receive a large acting force, which can prevent the accumulation of impurities, can be scattered by the acting force, can shake the reaction liquid in the filter screen, prevent the accumulation of substances, can filter better, intercept the sundries in the reaction liquid, and does not affect the falling of the liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 It is a schematic diagram of the overall structure of this embodiment;

[0019] Figure 2 It is a schematic cross-sectional view of the structure of the filter tank of this embodiment;

[0020] Figure 3This is a schematic diagram of another perspective of the structural section of the filtration tank in this embodiment.

[0021] In the attached drawings, the list of components represented by each reference numeral is as follows:

[0022] 100, rectification unit; 110, rectification barrel; 120, filtration tank; 130, diversion pipe;

[0023] 200, filtration unit; 210, limit block; 220, connecting rope; 230, positioning rod; 231, connection port; 240, filter net; 250, first cylinder; 260, second cylinder; 270, spring. Specific implementation mode

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0025] Please refer to Figures 1-3 , the present invention provides a technical solution: a 5-hydroxymethylthiazole rectification device, including a rectification unit 100 and a filtration unit 200. The rectification unit 100 includes a rectification barrel 110 and a filtration tank 120 connected to the rectification barrel 110. The rectification unit 100 further includes a diversion pipe 130 provided at the top and bottom of the filtration tank 120. The bottom of the diversion pipe 130 at the top of the filtration tank 120 must be within the opening range at the top of the filter net 240. Through the rectification unit 100, the products therein can be rectified. The rectified reaction liquid is then injected into the filtration tank 120 through the diversion pipe 130 for filtration. The diversion pipe 130 can pour the reaction liquid at the filter net 240 to ensure the filtration work and prevent the situation of incomplete filtration.

[0026] Refer to Figure 2 , Figure 3 , in a preferred implementation mode, the filtration unit 200 includes a limit block 210 fixedly installed on the inner upper surface of the filtration tank 120. A connecting rope 220 is connected to the opening of the limit block 210. The limit block 210 is arranged in a concave shape. The connecting rope 220 passes through the concave part of the limit block 210. One end of the connecting rope 220 away from the limit block 210 is connected to a positioning rod 230. A connection port 231 is provided on the side of the upper part of the positioning rod 230. The connecting rope 220 has certain corrosion resistance and is arranged in a soft body.

[0027] The positioning rod 230 can be connected to the limit block 210 through the connecting rope 220, so that the filter screen 240 at the bottom of the positioning block moves along with the positioning rod 230 and the connecting rope 220. Due to the flexible setting of the connecting rope 220, it can swing, which can further drive the filter screen 240 to swing. Moreover, the corrosion resistance of the connecting rope 220 can effectively extend its service life and prevent it from being corroded or the like.

[0028] Refer to Figure 2 and Figure 3 In a further preferred embodiment, the bottom of the positioning rod 230 is installed inside the filter screen 240. The inner wall of the filter tank 120 is provided with a first cylinder 250. A spring 270 is fixedly installed on the side of the first cylinder 250 close to the filter screen 240. The filter screen 240 is provided with a narrow-mouth filter. The spring 270 can contact the outer wall of the filter screen 240. The spring 270 will not get stuck near the filter screen 240, and the end-side area of the spring 270 is larger than the narrow-mouth side area of the filter screen 240.

[0029] The narrow-mouth filter setting of the filter screen 240 can better intercept the impurities in the reaction solution, reduce the leakage of impurities. The filter screen 240 can intercept and filter the impurities in the reaction solution to prevent the impurities from continuing to flow with the reaction solution and affecting the subsequent quality.

[0030] The surface area of the end of the spring 270 is larger than the surface area of the mesh opening of the filter screen 240, that is, when the spring 270 contacts the filter screen 240, it will not insert into the mesh opening and will not get stuck with the filter screen 240. The spring 270 and the filter screen 240 can be in a state of touching and separating.

[0031] Refer to Figure 2 、 Figure 3 Further preferably, a second cylinder 260 is provided on the side of the filter tank 120 away from the first cylinder 250. The first cylinder 250 and the second cylinder 260 are symmetrically installed obliquely with the filter screen 240 as the center. Springs 270 are installed at the extending ends of both the first cylinder 250 and the second cylinder 260. The side area of the spring 270 is smaller than the side area of the filter screen 240, and the spring 270 must contact the side of the filter screen 240.

[0032] When the first cylinder 250 and the spring 270 extend, the second cylinder 260 and the spring 270 contract; when the second cylinder 260 and the spring 270 extend, the first cylinder 250 and the spring 270 contract. That is, the kinetic energy received by the filter screen 240 can be fully utilized to prevent energy waste and can filter the reaction solution in the filter screen 240 more effectively.

[0033] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inner", "front", "center", "both ends", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0034] In the present utility model, unless otherwise clearly defined and limited, terms such as "installed", "set", "connected", "fixed", "swivelly connected", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. Unless otherwise clearly defined, for those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0035] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A 5-hydroxymethylthiazole rectification device, comprising a rectification unit (100) and a filtration unit (200), characterized in that: The rectification unit (100) includes a rectification barrel (110) and a filtration tank (120) connected to the rectification barrel (110); The filtration unit (200) includes a limit block (210) fixedly installed on the inner upper surface of the filtration tank (120). A connecting rope (220) is connected to the opening of the limit block (210). One end of the connecting rope (220) away from the limit block (210) is connected to a positioning rod (230). A connection port (231) is provided on the side surface of the upper part of the positioning rod (230). The bottom of the positioning rod (230) is installed inside a filter net (240). A first cylinder (250) is provided on the inner wall of the filtration tank (120). A spring (270) is fixedly installed on the side of the first cylinder (250) close to the filter net (240). A second cylinder (260) is provided on one side of the filtration tank (120) away from the first cylinder (250).

2. The rectification device for 5-hydroxymethylthiazole according to claim 1, wherein: The limit block (210) is arranged in a concave shape, and the connecting rope (220) passes through the concave part of the limit block (210).

3. A 5-hydroxymethylthiazole rectification device according to claim 2, characterized in that: The connecting rope (220) has a certain corrosion resistance and is arranged in a soft body.

4. A 5-hydroxymethylthiazole rectification device according to claim 1, characterized in that: The filter net (240) is arranged for fine-mouth filtration. The spring (270) can contact the outer wall of the filter net (240). The spring (270) near the filter net (240) will not get stuck. The side area of the tail end of the spring (270) is larger than the side area of the fine mouth of the filter net (240).

5. A 5-hydroxymethylthiazole rectification device according to claim 1, characterized in that: The first cylinder (250) and the second cylinder (260) are symmetrically installed obliquely with the filter net (240) as the center. Springs (270) are installed at the extending ends of the first cylinder (250) and the second cylinder (260).

6. A 5-hydroxymethylthiazole rectification device according to claim 4, characterized in that: The side area of the spring (270) is smaller than the side area of the filter net (240), and the spring (270) must contact the side surface of the filter net (240).

7. A 5-hydroxymethylthiazole rectification device according to claim 1, characterized in that: The rectification unit (100) further includes a diversion pipe (130) provided at the top and bottom of the filtration tank (120). The bottom of the diversion pipe (130) at the top of the filtration tank (120) must be within the opening range at the top of the filter net (240).

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