Dropwise adding device convenient for ethylene glycol antimony crystallization

Abstract

The utility model provides a dropwise adding device convenient for crystallization of ethylene glycol antimony, and belongs to the technical field of dropwise adding devices. Comprising a dropwise adding barrel and a liquid inlet pipe fixedly installed at the top of the dropwise adding barrel, a liquid outlet pipe is fixedly installed at the bottom of the dropwise adding barrel, an adjusting valve is fixedly installed on the liquid outlet pipe, a replacement groove is formed in the dropwise adding barrel, a filtering mechanism is arranged in the dropwise adding barrel and comprises a mounting disc, and four filtering cylinders movably penetrate through the interior of the mounting disc; a connecting cylinder is fixedly mounted at the top of the mounting disc, and a square rod is slidably connected into the connecting cylinder. According to the utility model, the four replaceable filter cartridges are arranged, and the rotating filter cartridges can be continuously replaced in the filtering process, so that the possibility of blockage is reduced, the filtering efficiency is improved, an operator can easily disassemble and replace the filter cartridges, the filtering process is more efficient, the working time of the operator is reduced, and the production efficiency is improved; a good state of the filtering system is kept.

Description

Technical Field

[0001] The utility model relates to the technical field of dropping devices, in particular to a dropping device that is convenient for crystallizing antimony glycol. Background Art

[0002] Antimony trioxide is the raw material for preparing antimony glycol, which is a new catalyst used in the polyester production process. It is a white crystalline powder, easily soluble in ethylene glycol, and non-toxic. The preparation of antimony glycol usually requires multiple steps, generally: reaction, filtration, crystallization, centrifugal separation, and drying. When observing the impact of different crystal systems of antimony trioxide on the quality of antimony glycol, one of the methods is to transform the antimony trichloride solution into cubic crystal antimony trioxide, and then add it to the ethylene glycol solution. After a series of reactions, the quality of the finished product is tested.

[0003] A Chinese patent with authorization announcement number CN218900885U discloses a dropping device for facilitating crystallization of ethylene glycol antimony, including a dropping bucket, a filter screen is arranged at the upper end of the dropping bucket, a liquid level mechanism for detecting the liquid level is installed inside the dropping bucket, and an adjustment mechanism for adjusting the dropping amount is arranged in the adjustment box.

[0004] In the above patent, a filter is provided to filter the solution after the reaction, but the filter is installed inside a dripping bucket, and a cover is installed on the top of the dripping bucket. When the filter needs to be removed, the cover needs to be removed, and the operation is cumbersome and complicated. Therefore, the present application provides a dripping device that facilitates the crystallization of ethylene glycol antimony to meet the demand. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a dropping device that facilitates the crystallization of antimony glycol to solve the problem in the above background technology that when the filter screen needs to be removed, the cover plate needs to be removed, and the operation is cumbersome and complicated.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0007] A dropping device for facilitating the crystallization of ethylene glycol antimony comprises a dropping bucket and a liquid inlet pipe fixedly mounted on the top of the dropping bucket, a liquid outlet pipe fixedly mounted on the bottom of the dropping bucket, a regulating valve fixedly mounted on the liquid outlet pipe, a replacement slot provided on the dropping bucket, a filtering mechanism arranged inside the dropping bucket, the filtering mechanism comprising a mounting plate, four filter cartridges movably penetrated inside the mounting plate, a connecting cylinder fixedly mounted on the top of the mounting plate, a square rod slidably connected inside the connecting cylinder, a spring fixedly mounted on the bottom of the square rod, the other end of the spring fixedly mounted on the inner wall of the connecting cylinder, a handle fixedly mounted on the top of the square rod, four truncated cone filter elements fixedly mounted inside the filter cartridge, and three limit seats matched with the handle fixedly mounted on the top of the dropping bucket.

[0008] Preferably, four mounting ears are fixedly mounted on the outer wall of the filter cartridge, and a mounting groove cooperating with the mounting ears is formed on the top of the mounting plate.

[0009] Preferably, the inner wall of the filter cartridge is rotatably connected to two symmetrically arranged rotating ears, and the rotating ears are turned over at the inner wall of the filter cartridge.

[0010] Preferably, the edge of the mounting groove is provided with a circular chamfer.

[0011] Preferably, a sealing ring is fixedly connected to the top of the filter cartridge.

[0012] Preferably, a sealing strip is fixedly intercepted on the side wall of the replacement groove.

[0013] Compared with the prior art, the utility model has at least the following beneficial effects:

[0014] In the above scheme, by setting up four replaceable filter cartridges, the rotating filter cartridge can be continuously replaced during the filtration process, reducing the possibility of clogging, thereby improving the filtration efficiency. The operator can easily remove and replace the filter cartridge, making the filtration process more efficient, reducing the operator's working time, improving production efficiency, and maintaining the filtration system in good condition.

[0015] By setting four truncated cone filter elements, when a large number of solid impurities adhere to the inner wall of the filter cartridge, the liquid can be filtered from the truncated cone filter elements into the interior of the drip bucket, thereby ensuring high efficiency and continuity of filtration.

[0016] By setting two rotating ears, when replacing the filter cartridge, use a tool to flip the rotating ears on the inner wall of the filter cartridge, and then use the tool to hook the rotating ears to lift the filter cartridge upward to avoid direct contact with the filter cartridge and cause contamination.

[0017] By setting the sealing strip, when the mounting plate rotates, the sealing strip scrapes off the liquid remaining on the outer wall of the mounting plate, so that the surface of the mounting plate part rotated out of the replacement groove is clean, and the liquid flowing out of the liquid inlet pipe is prevented from flowing out of the replacement groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, further serve to explain the principles of the present disclosure and to enable those skilled in the relevant art to make and use the present disclosure.

[0019] Figure 1 A schematic diagram of the three-dimensional structure of a dropping device for facilitating the crystallization of antimony glycol;

[0020] Figure 2 A schematic diagram of the internal three-dimensional structure of the dripping bucket of the dripping device for facilitating the crystallization of antimony glycol;

[0021] Figure 3 for Figure 2 A schematic diagram of the enlarged structure of part A;

[0022] Figure 4 It is a schematic diagram of the three-dimensional structure explosion of the filtering mechanism;

[0023] Figure 5 It is a schematic diagram of the three-dimensional structure of the sealing strip.

[0024] Reference numerals:

[0025] 1. Drip bucket; 2. Liquid inlet pipe; 3. Liquid outlet pipe; 4. Regulating valve; 5. Filter mechanism; 51. Mounting plate; 52. Filter cartridge; 53. Mounting slot; 54. Mounting ear; 55. Cone filter element; 56. Rotating ear; 57. Connecting cylinder; 58. Square rod; 59. Spring; 510. Handle; 511. Limit seat; 6. Replacement slot; 7. Sealing strip. DETAILED DESCRIPTION

[0026] The following is a detailed description of a dropping device for facilitating the crystallization of antimony glycol provided by the utility model in combination with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternatives to implement some known technologies; and the accompanying drawings are only for a more specific description of the embodiments, and are not intended to specifically limit the utility model.

[0027] It should be noted that the references to "one embodiment", "embodiment", "exemplary embodiments", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).

[0028] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0029] like Figure 1-5As shown, an embodiment of the utility model provides a dropping device for facilitating the crystallization of ethylene glycol antimony, comprising a dropping bucket 1 and a liquid inlet pipe 2 fixedly mounted on the top of the dropping bucket 1, a liquid outlet pipe 3 fixedly mounted on the bottom of the dropping bucket 1, a regulating valve 4 fixedly mounted on the liquid outlet pipe 3, a replacement slot 6 provided on the dropping bucket 1, a filtering mechanism 5 is arranged inside the dropping bucket 1, the filtering mechanism 5 comprises a mounting plate 51, four filter cartridges 52 are movably penetrated inside the mounting plate 51, a connecting cylinder 57 is fixedly mounted on the top of the mounting plate 51, a square rod 58 is slidably connected inside the connecting cylinder 57, a spring 59 is fixedly mounted on the bottom of the square rod 58, the other end of the spring 59 is fixedly mounted on the inner wall of the connecting cylinder 57, a handle 510 is fixedly mounted on the top of the square rod 58, four truncated cone filter elements 55 are fixedly mounted inside the filter cartridge 52, and three limit seats 511 matching the handle 510 are fixedly mounted on the top of the dropping bucket 1.

[0030] The antimony trichloride solution is added dropwise to concentrated ammonia water containing potassium sodium tartrate, ethylenediaminetetraacetate, urea, and hydrogen peroxide to obtain cubic crystal antimony trioxide, which is then centrifuged, dried, and then added to ethylene glycol for reaction. After the reaction is completed and filtered, it is input into the dropping bucket 1 through the liquid inlet pipe 2. The liquid enters the inside of the dropping bucket 1 after being filtered from the filter cartridge 52. The regulating valve 4 is adjusted to adjust the flow rate. The liquid flows through the regulating valve 4 from the liquid outlet pipe 3 and finally flows into the inside of the crystallization chamber for crystallization. The filter cartridge 52 filters and removes insoluble impurities and particles in the solution to ensure the purity during the crystallization process and improve the quality of the final product. When there are more impurities remaining in the filter cartridge 52 and the filter cartridge 52 needs to be replaced, the handle 510 is pulled upward to drive the square rod 58 to move. The square rod 58 moves inside the connecting tube 57 and stretches the spring 59. Then the handle 510 is rotated to make the square rod 58 drive the connecting tube 57 to rotate, and the connecting tube 57 drives the mounting plate 51 to rotate. The mounting plate 51 is in the dropping The internal rotation of the barrel 1 causes the new filter cartridge 52 to rotate to the bottom of the liquid inlet pipe 2 for filtering. When the used filter cartridge 52 rotates out of the replacement slot 6, the filter cartridge 52 is removed upward and replaced with a new filter cartridge 52. By setting four replaceable filter cartridges 52, the rotating filter cartridge 52 can be continuously replaced during the filtering process, reducing the possibility of clogging, thereby improving the filtering efficiency. The operator can easily remove and replace the filter cartridge 52, making the filtering process more efficient, reducing the working time of the operator, improving production efficiency, and maintaining a good state of the filtering system. By setting four conical filter elements 55, when a large number of solid impurities are attached to the inner wall of the filter cartridge 52, the liquid can be filtered from the conical filter element 55 into the interior of the drip bucket 1, ensuring the high efficiency and continuity of the filtering. By setting a limit seat 511, when the handle 510 is not subjected to an upward pulling force, the bottom of the handle 510 contacts the top of the limit seat 511, and the limit seat 511 limits the handle 510.

[0031] like Figure 4 As shown, four mounting ears 54 are fixedly installed on the outer wall of the filter cartridge 52, and a mounting groove 53 cooperating with the mounting ears 54 is opened on the top of the mounting plate 51. By setting the mounting groove 53 and the mounting ears 54, the filter cartridge 52 can be quickly installed inside the mounting plate 51, and the removal and replacement operation is simple.

[0032] like Figure 4 As shown, the inner wall of the filter cartridge 52 is rotatably connected to two symmetrically arranged rotating ears 56. By setting the two rotating ears 56, when replacing the filter cartridge 52, a tool is used to flip the rotating ears 56 on the inner wall of the filter cartridge 52, and then the tool is used to hook the rotating ears 56 and lift the filter cartridge 52 upward to avoid direct contact with the filter cartridge 52 and cause contamination.

[0033] like Figure 4 As shown, the edge of the mounting groove 53 is provided with a circular chamfer, and the circular chamfer is provided to facilitate the mounting ear 54 to be inserted into the interior of the mounting groove 53, thereby facilitating the installation of the filter cartridge 52 on the top of the mounting plate 51.

[0034] like Figure 4 As shown, a sealing ring is fixedly connected to the top of the filter cartridge 52. By setting the sealing ring, when the filter cartridge 52 rotates to the bottom of the liquid inlet pipe 2, the sealing ring ensures that the bottom of the liquid inlet pipe 2 and the top of the filter cartridge 52 are sealed with each other, preventing liquid from flowing out of the top of the filter cartridge 52.

[0035] like Figure 5 As shown, the side wall of the replacement groove 6 is fixedly intercepted with a sealing strip 7. By setting the sealing strip 7, when the mounting plate 51 rotates, the sealing strip 7 scrapes off the liquid remaining on the outer wall of the mounting plate 51, so that the surface of the mounting plate 51 rotated out of the replacement groove 6 is clean, and the liquid flowing out of the liquid inlet pipe 2 is prevented from flowing out from the replacement groove 6.

[0036] The technical solution provided by the utility model comprises the following steps: adding antimony trichloride solution dropwise into concentrated ammonia water containing sodium potassium tartrate, ethylenediaminetetraacetate, urea and hydrogen peroxide to obtain cubic antimony trioxide crystals, and then centrifugally separating and drying the solution, and then adding ethylene glycol to react. After the reaction is finished and filtered, the solution is input into a dropping bucket 1 through a liquid inlet pipe 2. The liquid enters the inside of the dropping bucket 1 after being filtered through a filter cartridge 52. When a large number of solid impurities are attached to the inner wall of the filter cartridge 52, the liquid can be filtered through a truncated cone filter element 55 and enter the inside of the dropping bucket 1. The regulating valve 4 is adjusted to adjust the flow rate. The liquid flows through the regulating valve 4 from the liquid outlet pipe 3 and finally flows into the inside of the crystallization chamber for crystallization. The filter cartridge 52 filters and removes insoluble impurities and particles in the solution, thereby ensuring the purity during the crystallization process and improving the quality of the final product. When the handle 510 is not subjected to an upward pulling force, the handle 510 is pulled upward. The bottom of the hand 510 contacts the top of the limit seat 511. When there are more impurities remaining in the filter cartridge 52 and the filter cartridge 52 needs to be replaced, the handle 510 is pulled upward to drive the square rod 58 to move. The square rod 58 moves inside the connecting tube 57 and stretches the spring 59. Then the handle 510 is rotated to make the square rod 58 drive the connecting tube 57 to rotate. The connecting tube 57 drives the mounting plate 51 to rotate. The mounting plate 51 rotates inside the drip bucket 1, so that the new filter cartridge 52 rotates to the bottom of the liquid inlet pipe 2 for filtering. The sealing strip 7 scrapes off the liquid remaining on the outer wall of the mounting plate 51, so that the surface of the mounting plate 51 part that rotates out of the replacement groove 6 is clean. When replacing the filter cartridge 52, a tool is used to flip the rotating ear 56 on the inner wall of the filter cartridge 52, and then a tool is used to hook the rotating ear 56 and lift the filter cartridge 52 upward to replace the new filter cartridge 52.

[0037] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, the specific details are described in detail in the above preferred embodiments of the present invention, and those skilled in the art can fully understand the present invention without the description of these details.

[0038] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A dropping device for facilitating crystallization of antimony glycol, comprising a dropping bucket (1) and a liquid inlet pipe (2) fixedly mounted on the top of the dropping bucket (1), a liquid outlet pipe (3) fixedly mounted on the bottom of the dropping bucket (1), and a regulating valve (4) fixedly mounted on the liquid outlet pipe (3), characterized in that: The dripping bucket (1) is provided with a replacement groove (6). A filtering mechanism (5) is arranged inside the dripping bucket (1). The filtering mechanism (5) comprises a mounting plate (51). Four filter cartridges (52) are movably penetrated inside the mounting plate (51). A connecting cylinder (57) is fixedly mounted on the top of the mounting plate (51). A square rod (58) is slidably connected inside the connecting cylinder (57). A spring (59) is fixedly mounted on the bottom of the square rod (58). The other end of the spring (59) is fixedly mounted on the inner wall of the connecting cylinder (57). A handle (510) is fixedly mounted on the top of the square rod (58). Four truncated cone filter elements (55) are fixedly mounted inside the filter cartridge (52). Three limit seats (511) matching the handle (510) are fixedly mounted on the top of the dripping bucket (1).

2. The dropping device for facilitating crystallization of antimony glycolate according to claim 1, characterized in that: Four mounting ears (54) are fixedly mounted on the outer wall of the filter cartridge (52), and a mounting groove (53) matching with the mounting ears (54) is formed on the top of the mounting plate (51).

3. The dropping device for facilitating crystallization of antimony glycolate according to claim 1, characterized in that: The inner wall of the filter cartridge (52) is rotatably connected to two symmetrically arranged rotating ears (56), and the rotating ears (56) are turned over at the inner wall of the filter cartridge (52).

4. The dropping device for facilitating crystallization of antimony glycolate according to claim 2, characterized in that: The edge of the mounting groove (53) is provided with a circular chamfer.

5. The dropping device for facilitating crystallization of antimony glycolate according to claim 1, characterized in that: A sealing ring is fixedly connected to the top of the filter cartridge (52).

6. The dropping device for facilitating crystallization of antimony glycolate according to claim 1, characterized in that: A sealing strip (7) is fixedly intercepted on the side wall of the replacement groove (6).

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