Chemical raw material preparation distillation device

Abstract

The utility model discloses a chemical raw material preparation distillation device, and belongs to the technical field of chemical distillation equipment. The device mainly comprises a distillation retort, a sealing cover is hinged to the distillation retort, an air outlet pipe is arranged on the sealing cover, the air outlet pipe is communicated with a filtering mechanism, the filtering mechanism comprises a support installed on the distillation retort, two sets of filtering cylinders are arranged on the support, the two sets of filtering cylinders are arranged in parallel, and the two sets of filtering cylinders are each provided with an inlet and an outlet. The air outlet pipe is communicated with an input pipe, the input pipe is provided with a first valve, the first valve is respectively communicated with the inlets of the two groups of filter cartridges, the output pipe is provided with a second valve, and the second valve is respectively communicated with the outlets of the two groups of filter cartridges. According to the distillation device for preparing the chemical raw materials, the two groups of filtering mechanisms connected in parallel are arranged, so that one group of filtering mechanisms can be alternately used according to conditions in the distillation process, and continuous distillation operation of the chemical raw materials can be better matched.

Description

Technical Field

[0001] This application relates to the field of chemical distillation equipment technology, specifically a distillation apparatus for preparing chemical raw materials. Background Technology

[0002] Distillation is a mass transfer process that separates components in a liquid mixture by utilizing the differences in volatility of the components. It involves introducing the vapor generated by the boiling of a liquid into a condenser to cool and condense it into a liquid. Distillation is an important operational technique for separating mixtures with large differences in boiling points, and it has significant practical value, especially for the separation of liquid mixtures. Distillation equipment is often required in chemical production processes.

[0003] For example, the patent with publication number CN208741961 U specifically discloses a medical chemical distillation device. This patent provides a water bath at the bottom of the distillation tank and a heater at the bottom of the water bath. The water bath heats the distillation tank. This setup not only ensures that the raw materials inside the distillation tank are heated evenly, but also facilitates temperature control and avoids sudden temperature changes that could affect the distillation effect.

[0004] During the distillation process of chemical raw materials, some impurities are also distilled out simultaneously. Therefore, before collecting the distilled chemical raw materials, it is necessary to use a filtration device to filter them. As the filtration device continues to filter, its performance will decline, so it needs to be replaced or maintained in a timely manner.

[0005] However, the distillation of chemical raw materials is a continuous process. If the filter device is replaced or maintained, it will affect the continuous distillation of chemical raw materials, thereby reducing production efficiency. Therefore, it is necessary to provide a chemical raw material preparation distillation device to solve the above problems.

[0006] It should be noted that the information disclosed in this background section is only for understanding the background technology of this application concept, and therefore may include information that does not constitute prior art. Utility Model Content

[0007] Based on the aforementioned problems in the existing technology, the problem to be solved by this application is to provide a chemical raw material preparation distillation apparatus that achieves the effect of continuous distillation of chemical raw materials without affecting the replacement or maintenance of the filter device.

[0008] The technical solution adopted by this application to solve its technical problem is as follows: a chemical raw material preparation distillation apparatus, including a distillation tank with a hinged cover; at least one set of feed ports disposed on the cover; a gas outlet pipe disposed on the cover; a filtration mechanism connected to the gas outlet pipe, the filtration mechanism including: a support mounted on the distillation tank; two sets of filter cylinders arranged in parallel, each set of filter cylinders having an inlet for introducing distilled gas and an outlet for leading distilled gas out; an input pipe connected to the gas outlet pipe, the input pipe having a first valve installed on it, the first valve being connected to the inlets of the two sets of filter cylinders respectively; and an output pipe having a second valve installed on it, the second valve being connected to the outlets of the two sets of filter cylinders respectively.

[0009] Furthermore, the filter cartridge is provided with an inner cylinder inside, and there is a gap between the inner cylinder and the inner wall of the filter cartridge. The upper end of the inner cylinder is provided with an opening that communicates with the inlet. The peripheral wall of the inner cylinder is provided with filter holes, and the filter cartridge is provided with an outlet that communicates with the gap.

[0010] Furthermore, a drain valve is provided at the bottom of the filter cartridge.

[0011] Furthermore, a condensing mechanism is connected to the output pipe. The condensing mechanism includes a condensing box disposed on one side of the distillation tank. An air inlet pipe is disposed on the condensing box and is connected to the output pipe. A condensing pipe is disposed inside the condensing box.

[0012] Furthermore, the condenser is equipped with a coil, which is connected to the air intake pipe.

[0013] Furthermore, the end of the coil is connected to a collection tank, and a discharge valve is provided at the lower end of the collection tank.

[0014] Furthermore, a sampling tube is connected to the air intake pipe, and the sampling tube extends out of the condenser box to form a sampling port.

[0015] Furthermore, an opening and closing mechanism is provided on one side of the distillation tank. The opening and closing mechanism includes a fixed frame fixedly installed on the cover, a rotating shaft fixedly installed on the fixed frame, and a rotating plate rotatably installed on the rotating shaft.

[0016] The rotating plate is mounted at the middle position to the rotating shaft, one end of the rotating plate is hinged to the cover, a cylinder is hinged to the distillation tank, and the output end of the cylinder is hinged to the other end of the rotating plate.

[0017] The beneficial effects of this application are: the chemical raw material preparation distillation apparatus provided by this application has two sets of parallel filtration mechanisms, so that one set of filtration mechanisms can be used alternately during the distillation process, thereby better matching the continuous distillation operation of chemical raw materials.

[0018] In addition to the purposes, features, and advantages described above, this application has other purposes, features, and advantages. A further detailed description of this application will be provided below with reference to the figures. Attached Figure Description

[0019] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0020] Figure 1 This is an overall schematic diagram of a chemical raw material preparation distillation apparatus according to this application;

[0021] Figure 2 for Figure 1 A schematic diagram of the overall structure of the distillation mechanism;

[0022] Figure 3 for Figure 2 A partial structural diagram at point A in the middle;

[0023] Figure 4 for Figure 3 Schematic diagram of the internal structure of the filter cartridge;

[0024] The following are the labeling elements in the figure:

[0025] 1. Distillation mechanism; 11. Distillation vessel; 12. Support leg; 13. Cap; 14. Feed inlet; 15. Gas outlet pipe;

[0026] 2. Opening and closing mechanism; 21. Cylinder; 22. Fixing frame; 23. Motor; 24. Rotating shaft; 25. Rotating plate;

[0027] 3. Filtration mechanism; 31. First filter cartridge; 32. Second filter cartridge; 33. Inlet pipe; 34. First valve; 35. Second valve; 36. Outlet pipe; 37. Inlet; 38. Inner cylinder; 39. Outlet; 310. Drain valve; 311. Support;

[0028] 4. Condensation mechanism; 41. Condensation box; 42. Discharge valve; 43. Air inlet pipe; 44. Sampling pipe; 45. Condensation pipe; 46. Sampling port; 47. Coil; 48. Collection tank. Detailed Implementation

[0029] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0030] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0031] like Figure 1 As shown, this application provides a chemical raw material preparation distillation apparatus, including a distillation mechanism 1, which is used for the distillation of chemical raw materials (hereinafter referred to as raw materials). The distillation mechanism 1 includes a distillation tank 11, which has an inner cavity for placing the raw material to be distilled. At the same time, a support leg 12 is provided at the bottom of the distillation tank 11 to facilitate placing the distillation tank 11 in the working area and to maintain the stability of the distillation tank 11.

[0032] Meanwhile, a cover 13 is hinged to the upper end of the distillation tank 11 to seal the upper end of the distillation tank 11 during the distillation of raw materials. The cover 13 is provided with at least one set of feed inlets 14, which are used to introduce the raw materials into the inner cavity of the distillation tank 11.

[0033] To facilitate the opening or closing of the cap 13, such as Figures 1-2 As shown, an opening and closing mechanism 2 is provided on one side of the distillation tank 11. The opening and closing mechanism 2 includes a fixed frame 22 fixedly installed on the cover 13. A rotating shaft 24 is fixedly installed on the fixed frame 22. A rotating plate 25 is rotatably installed on the rotating shaft 24. It should be noted that the middle position of the rotating plate 25 is installed with the rotating shaft 24, and one end of the rotating plate 25 is hinged to the cover 13. Thus, when the rotating plate 25 rotates around the rotating shaft 24, it can drive the cover 13 to open or close.

[0034] Meanwhile, a cylinder 21 is hinged to the distillation tank 11. The output end of the cylinder 21 is hinged to the other end of the rotating plate 25. Thus, the extension and retraction of the cylinder 21 can drive the rotating plate 25 to rotate, thereby opening or closing the cover 13.

[0035] Continue to refer to Figures 1-2A motor 23 is fixedly installed at the upper end of the fixed frame 22. A belt drive assembly is installed at the output end of the motor 23. A stirring shaft is installed at the output end of the belt drive assembly. The stirring shaft passes through the cover 13 and extends into the inner cavity of the distillation tank 11 to stir the raw materials, thereby accelerating the distillation of the raw materials.

[0036] like Figures 2-4 As shown, an outlet pipe 15 is connected to the cover 13, and a filter mechanism 3 is connected to the outlet pipe 15. The filter mechanism 3 includes a bracket 311 fixedly installed on the distillation tank 11. Two sets of filter cylinders are fixedly installed on the bracket 311, namely a first filter cylinder 31 and a second filter cylinder 32. The first filter cylinder 31 and the second filter cylinder 32 have the same structure and both have an inlet 37. At the same time, an inner cylinder 38 is provided inside the filter cylinder (including the first filter cylinder 31 and the second filter cylinder 32). There is a gap between the inner cylinder 38 and the inner wall of the filter cylinder. An opening is provided at the upper end of the inner cylinder 38, which is connected to the inlet 37 to facilitate the introduction of gas into the inner cylinder 38. Filter holes are provided on the peripheral wall of the inner cylinder 38, so that the gas entering the inner cylinder 38 enters the gap between the inner cylinder 38 and the inner wall of the filter cylinder through the filter holes, while impurities are retained in the inner cylinder 38, thereby achieving the filtration of distilled gas.

[0037] Meanwhile, an outlet 39 is provided on the filter cartridge, which is connected to the gap, so that the gas entering the gap can enter the next process through the outlet 39.

[0038] To allow for alternating use of the first filter cartridge 31 and the second filter cartridge 32, the first filter cartridge 31 and the second filter cartridge 32 are connected in parallel, specifically:

[0039] like Figures 2-3 As shown, an input pipe 33 is connected to the gas outlet pipe 15. A first valve 34 is provided on the input pipe 33. The first valve 34 is a three-way valve. Therefore, the first valve 34 has a first end connected to the input pipe 33, and a second end and a third end as the outlet. The second end and the third end are respectively connected to the inlet 37 of the first filter cylinder 31 and the second filter cylinder 32. Thus, by adjusting the first valve 34, the gas obtained by distillation can be filtered for impurities in the first filter cylinder 31 or the second filter cylinder 32.

[0040] Meanwhile, a second valve 35 is connected to the outlet 39 of the filter cartridge. The second valve 35 is also a three-way valve. Two of the ports of the second valve 35 are connected to the two sets of outlets 39 respectively, and the third port is connected to the output pipe 36, so that the filtered gas can be discharged through the output pipe 36.

[0041] In this application, since the first filter cartridge 31 and the second filter cartridge 32 are arranged in parallel, the first valve 34 and the second valve 35 can be used to perform filtration operations or replace and maintain the first filter cartridge 31 and the second filter cartridge 32 without affecting the continuity of distillation.

[0042] It should be noted that a drain valve 310 is provided at the bottom of the filter cartridge. This drain valve 310 is connected to the gap, so that when there is water in the filter cartridge, it can be drained by opening the drain valve 310.

[0043] like Figure 1 As shown, a condensing mechanism 4 is connected to the output pipe 36 of the filtration mechanism 3. The condensing mechanism 4 is used to condense and liquefy the gas after distillation and filtration for subsequent collection. The condensing mechanism 4 includes a condensing box 41 disposed on one side of the distillation tank 11. The condensing box 41 is provided with an inlet pipe 43 connected to the output pipe 36. The inlet pipe 43 is adapted to introduce gas into the interior of the condensing box 41.

[0044] Meanwhile, a condenser tube 45 is provided inside the condenser box 41. The condenser tube 45 is suitable for introducing condensate so that the temperature in the condenser box 41 is maintained at a preset low temperature.

[0045] Furthermore, a coil 47 is provided in the condenser 41, which is connected to the air inlet pipe 43. The arrangement of the coil 47 can extend the movement path of the gas in the condenser 41, thereby allowing the gas to be cooled more fully.

[0046] Continue to refer to Figure 1 A collection tank 48 is connected to the end of the coil 47. The collection tank 48 is used to collect the liquid after the gas is condensed. A discharge valve 42 is provided at the lower end of the collection tank 48 so that the condensed liquid can be discharged to the storage device for storage through the discharge valve 42.

[0047] Furthermore, a sampling pipe 44 is connected to the air inlet pipe 43. The sampling pipe 44 extends out of the condenser box 41 and forms a sampling port 46. Thus, the staff can sample the filtered gas through the sampling port 46 and measure the purity of the gas in order to adjust the switching and maintenance cycle of the two sets of filter cartridges.

[0048] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A chemical feedstock preparation distillation apparatus, characterized by: include: A distillation vessel (11) with a hinged lid (13). At least one set of feed ports (14) are provided on the cover (13); An exhaust pipe (15) is provided on the cover (13); A filter mechanism (3) is connected to the air outlet pipe (15), and the filter mechanism (3) includes: A bracket (311) is mounted on the distillation vessel (11); Two sets of filter cartridges are arranged in parallel. Each set of filter cartridges has an inlet (37) for introducing distilled gas and an outlet (39) for leading out distilled gas. An input pipe (33) is connected to the outlet pipe (15), and a first valve (34) is installed on the input pipe (33), which is connected to the inlet (37) of the two sets of filter cartridges respectively; The output pipe (36) is equipped with a second valve (35), which is connected to the outlet (39) of the two sets of filter cartridges respectively.

2. A distillation apparatus for the preparation of chemical raw materials according to claim 1, characterized in that: The filter cartridge is provided with an inner cylinder (38) inside, and there is a gap between the inner cylinder (38) and the inner wall of the filter cartridge. The upper end of the inner cylinder (38) is provided with an opening, which is connected to the inlet (37). The peripheral wall of the inner cylinder (38) is provided with filter holes, and the filter cartridge is provided with an outlet (39), which is connected to the gap.

3. A distillation apparatus for the preparation of chemical raw materials according to claim 2, characterized in that: A drain valve (310) is provided at the bottom of the filter cartridge.

4. A distillation apparatus for the preparation of chemical raw materials according to claim 2, characterized in that: The output pipe (36) is connected to a condensing mechanism (4), which includes a condensing box (41) disposed on one side of the distillation tank (11). The condensing box (41) is provided with an air inlet pipe (43) connected to the output pipe (36), and a condensing pipe (45) is disposed inside the condensing box (41).

5. A distillation apparatus for the preparation of chemical raw materials according to claim 4, characterized in that: The condenser (41) is equipped with a coil (47), which is connected to the air inlet pipe (43).

6. A distillation apparatus for the preparation of chemical raw materials according to claim 5, characterized in that: The end of the coil (47) is connected to a collection tank (48), and a discharge valve (42) is provided at the lower end of the collection tank (48).

7. A distillation apparatus for the preparation of chemical raw materials according to claim 4, characterized in that: A sampling tube (44) is connected to the air intake pipe (43), and the sampling tube (44) extends out of the condenser box (41) and forms a sampling port (46).

8. A distillation apparatus for the preparation of chemical raw materials according to claim 1, characterized in that: The distillation tank (11) is provided with an opening and closing mechanism (2) on one side. The opening and closing mechanism (2) includes a fixed frame (22) fixedly installed on the cover (13). A rotating shaft (24) is fixedly installed on the fixed frame (22). A rotating plate (25) is rotatably installed on the rotating shaft (24). The rotating plate (25) is installed at the middle position with the rotating shaft (24), one end of the rotating plate (25) is hinged to the cover (13), and a cylinder (21) is hinged on the distillation tank (11). The output end of the cylinder (21) is hinged to the other end of the rotating plate (25).

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