Medicinal scraper type filtering device

Abstract

The utility model relates to the technical field of pharmaceutical filtration, and particularly discloses a medicinal scraper type filtering device which comprises a tank body, a tank cover arranged at the upper end of the tank body, a liquid inlet pipe arranged on the side wall of the tank cover, a liquid outlet pipe arranged on the lower side of the tank body, a conical surface arranged at the bottom of an inner cavity of the tank body, a slag outlet pipe arranged at the lowest end of the conical surface, and a cover plate arranged at the bottom of the slag outlet pipe. Grooves are oppositely formed in the bottom in the tank body and the bottom face of the tank cover, annular filter screens are placed in the grooves, and scraping mechanisms for cleaning filtered impurities on the inner walls of the annular filter screens are arranged on the inner sides of the annular filter screens. Through the arrangement of the scraping mechanism, impurities filtered on the inner wall of the annular filter screen are scraped off by the scraping plate at the end part of the connecting assembly in the rotating process of the rotating shaft, and are gradually collected towards the bottom of the tank body along with the rotation of the liquid, so that the influence of the impurities on filtering is avoided, and the cover plate is detached when the impurities are cleaned; impurities in the slag discharging pipe are pushed outwards through rotation of the auger blades, and the convenience of impurity cleaning is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pharmaceutical filtering, in particular to a medicinal scraper type filtering device. Background Art

[0002] In biopharmaceutical production technology, since a large amount of molecular impurities are doped in the drug liquid during the previous process such as stirring, distillation and fermentation, it is necessary to filter the liquid required for drug production during the production process; the existing announcement number is CN220758133 U, a pharmaceutical liquid filtering device, which drives a rotating rod and a scraper to rotate by a motor, and the scraper scrapes the drug liquid on the filter screen to make the drug liquid fluctuate, and the impurities on the filter screen are scraped and moved, so that the impurities are concentrated at the scraper, avoiding the impurities from being evenly distributed on the filter screen, so that the rest of the filter screen can be filtered normally; however, when the above device is in use, the amount of impurities at the scraper gradually increases, and the filter screen needs to be taken out later to clean the impurities on the filter screen, otherwise it will affect the filtration efficiency. Utility Model Content

[0003] The purpose of the utility model is to provide a medicinal scraper type filtering device in order to solve the above problems.

[0004] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0005] A medicinal scraper-type filtering device comprises a tank body, a tank cover is arranged at the upper end of the tank body, a liquid inlet pipe is arranged on the side wall of the tank cover, a liquid outlet pipe is arranged on the lower side of the tank body, the bottom of the inner cavity of the tank body is a conical surface, a slag discharge pipe is arranged at the lowest end of the conical surface, a cover plate is arranged at the bottom of the slag discharge pipe, a groove is relatively opened at the bottom of the tank body and the bottom surface of the tank cover, an annular filter screen is placed in the groove, a scraping mechanism for cleaning the filtered impurities on the inner wall of the annular filter screen is arranged on the inner side of the annular filter screen, the scraping mechanism comprises a rotating shaft, a power source is connected to the upper end of the rotating shaft, a connecting assembly is arranged on the outer diameter of the rotating shaft, a scraper is arranged at the end of the connecting assembly, and an auger blade is arranged on the rotating shaft located inside the slag discharge pipe.

[0006] Further configuration: the connecting assembly includes a fixed rod radially distributed on the outer diameter of the rotating shaft, a movable sleeve is arranged at one end of the fixed rod, a spring is arranged in the movable sleeve, and the movable sleeve is fixedly connected to the scraper at one end away from the rotating shaft.

[0007] It is further arranged that: the connecting components are distributed at least at three locations on the axis of the annular filter screen, and the movable sleeve is slidably connected to the fixed rod.

[0008] It is further arranged that the rotating shaft is rotatably connected to the tank cover, and the liquid inlet pipe is communicated with the inner cavity of the annular filter screen.

[0009] Further configuration: the scraper has a wedge-shaped surface and is made of polyurethane material.

[0010] Further configuration: the auger blades are welded to the rotating shaft, and the upper end surface of the cover plate is provided with a boss that is inserted into the slag discharge pipe.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] By setting the scraping mechanism in the annular filter, the impurities filtered on the inner wall of the annular filter can be scraped off by the scraper at the end of the connecting assembly during the rotation of the shaft, and gradually gathered to the bottom of the tank body as the liquid rotates, avoiding the influence of impurities on filtration. When cleaning impurities, the cover plate is removed and the impurities in the slag discharge pipe are pushed outward by the rotation of the auger blades, thereby improving the convenience of impurity cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0014] Figure 1 It is an axonometric diagram of a medicinal scraper-type filtering device described in the utility model;

[0015] Figure 2 This is a schematic diagram of the main cross-sectional structure of a medicinal scraper-type filtering device described in the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of a medicinal scraper filter device in a disassembled state according to the utility model;

[0017] Figure 4 It is a partial structural schematic diagram of a medicinal scraper-type filtering device described in the utility model.

[0018] The following are the descriptions of the reference numerals:

[0019] 1. Tank body; 11. Tank cover; 12. Liquid inlet pipe; 13. Liquid outlet pipe; 14. Conical surface; 15. Slag outlet pipe; 16. Support legs; 17. Cover plate; 2. Annular filter; 31. Rotating shaft; 32. Motor; 33. Fixed rod; 34. Movable sleeve; 35. Scraper; 36. Spring; 37. Auger blade. DETAILED DESCRIPTION

[0020] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are 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, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0022] The utility model is further described below in conjunction with the accompanying drawings:

[0023] like Figure 1-Figure 4 As shown, a medicinal scraper-type filtering device comprises a tank body 1, a tank cover 11 is arranged at the upper end of the tank body 1, a liquid inlet pipe 12 is arranged on the side wall of the tank cover 11, a liquid outlet pipe 13 is arranged on the lower side of the tank body 1, the bottom of the inner cavity of the tank body 1 is a conical surface 14, a slag discharge pipe 15 is arranged at the lowest end of the conical surface 14, a leg 16 is fixed on the lower side of the tank body 1, a cover plate 17 is arranged at the bottom of the slag discharge pipe 15, a groove is provided relatively at the bottom of the tank body 1 and the bottom surface of the tank cover 11, an annular filter screen 2 is placed in the groove, the annular filter screen 2 is limited at the upper and lower ends by the tank cover 11 and the tank body 1, and a scraping mechanism is arranged on the inner side of the annular filter screen 2 to clean the filtered impurities on its inner wall,

[0024] In this embodiment: the scraping mechanism includes a rotating shaft 31, a motor 32 is connected to the upper end of the rotating shaft 31, a connecting component is provided on the outer diameter of the rotating shaft 31, a scraper 35 is provided at the end of the connecting component, and an auger blade 37 is provided on the rotating shaft 31 located inside the slag discharge pipe 15, which is used to push the impurities collected in the slag discharge pipe 15 outward.

[0025] The connection assembly includes a fixed rod 33 radially distributed on the outer diameter of the rotating shaft 31, a movable sleeve 34 is arranged at one end of the fixed rod 33, a spring 36 is arranged in the movable sleeve 34, and the end of the movable sleeve 34 away from the rotating shaft 31 is fixedly connected to the scraper 35. The connection assembly is distributed at least three places on the axis of the annular filter 2, and the movable sleeve 34 is slidably connected to the fixed rod 33; the rotating shaft 31 is rotatably connected to the tank cover 11, and the liquid inlet pipe 12 is connected to the inner cavity of the annular filter 2; the scraper 35 is a wedge-shaped surface, and the scraper 35 is made of polyurethane material. The auger blade 37 is welded to the rotating shaft 31, and the upper end surface of the cover plate 17 is provided with a boss inserted into the slag discharge pipe 15, so that during the rotation of the rotating shaft 31, the movable sleeve 34 is thrown out on the fixed rod 33 to overcome the pulling force of the spring 36, so that the scraper 35 around the rotating shaft 31 contacts the inner wall of the annular filter 2, scrapes off the impurities on the inner wall of the annular filter 2, and collects them to the bottom of the tank body 1.

[0026] The working principle and use process of the utility model are as follows: the medicine liquid enters the inner side of the annular filter screen 2 in the tank body 1 through the liquid inlet pipe 12, the juice flows out from the liquid outlet pipe 13 through the annular filter screen 2, and the medicine residue is adsorbed on the inner wall of the annular filter screen 2. The motor 32 is started to drive the rotating shaft 31 to rotate. During the rotation process, the movable sleeve 34 is thrown outward on the fixed rod 33, so that the scraper 35 around the rotating shaft 31 contacts the inner wall of the annular filter screen 2, and the impurities on the inner wall of the annular filter screen 2 are scraped off, and gradually gathered to the bottom of the conical surface 14 with the rotation of the medicine liquid. When the internal impurities are discharged, the cover plate 17 is removed. When the rotating shaft 31 rotates, the auger blades 37 push the impurities in the residue discharge pipe 15 outward.

[0027] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A medicinal scraper filter device, comprising a tank body (1), a tank cover (11) disposed at the upper end of the tank body (1), a liquid inlet pipe (12) disposed on the side wall of the tank cover (11), and a liquid outlet pipe (13) disposed at the lower side of the tank body (1), characterized in that: The bottom of the inner cavity of the tank body (1) is a conical surface (14), the lowest end of the conical surface (14) is provided with a slag discharge pipe (15), the bottom of the slag discharge pipe (15) is provided with a cover plate (17), the inner bottom of the tank body (1) and the bottom surface of the tank cover (11) are provided with a groove, an annular filter screen (2) is placed in the groove, the inner side of the annular filter screen (2) is provided with a scraping mechanism for cleaning the filtered impurities on the inner wall thereof, the scraping mechanism comprises a rotating shaft (31), the upper end of the rotating shaft (31) is connected to a power source, a connecting assembly is provided on the outer diameter of the rotating shaft (31), a scraper (35) is provided at the end of the connecting assembly, and an auger blade (37) is provided on the rotating shaft (31) located inside the slag discharge pipe (15).

2. A medicinal scraper filter device according to claim 1, characterized in that: The connecting assembly comprises a fixed rod (33) radially distributed on the outer diameter of the rotating shaft (31), a movable sleeve (34) is arranged at one end of the fixed rod (33), a spring (36) is arranged inside the movable sleeve (34), and the movable sleeve (34) is fixedly connected to the scraper (35) at one end away from the rotating shaft (31).

3. A medicinal scraper filter device according to claim 2, characterized in that: The connection components are distributed at least at three locations on the axis of the annular filter screen (2), and the movable sleeve (34) is slidably connected to the fixed rod (33).

4. A medicinal scraper filter device according to claim 1, characterized in that: The rotating shaft (31) is rotatably connected to the tank cover (11), and the liquid inlet pipe (12) is in communication with the inner cavity of the annular filter screen (2).

5. A medicinal scraper filter device according to claim 1, characterized in that: The scraper (35) has a wedge-shaped surface and is made of polyurethane material.

6. A medicinal scraper filter device according to claim 1, characterized in that: The auger blade (37) is welded to the rotating shaft (31), and the upper end surface of the cover plate (17) is provided with a boss inserted into the slag discharge pipe (15).

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