Filtering device for chemical medicament production

Abstract

The utility model relates to a filter device for chemical medicament production, which comprises a U-shaped support and a filter cartridge, and is technically characterized in that a filter inner container is arranged in the filter cartridge, the filter cartridge consists of a middle cylinder, a left conical cylinder section and a right conical cylinder section, two ends of the filter inner container are fixedly connected with the inner walls of the left conical cylinder section and the right conical cylinder section, and a solid shaft is arranged at one end of the outer side of the filter cartridge. The solid shaft and the hollow shaft are supported on the left side wall and the right side wall of a U-shaped support, an annular liquid inlet sleeve is arranged on the outer side wall of the filter cartridge, a support connected with the annular liquid inlet sleeve is arranged on the bottom face of the U-shaped support, and a liquid inlet hole communicated with the annular liquid inlet sleeve is formed in the filter cartridge. A liquid inlet pipeline is fixed to the top face of the annular liquid inlet sleeve, a rotary driving mechanism is arranged between the U-shaped support and the filter cartridge, the outer end of the hollow shaft is connected with a liquid outlet pipeline through a rotary connector, and a slag discharging opening is further formed in the outer side wall of the filter cartridge. The device is beneficial to timely removing solid impurities on the filter screen layer, and the filtering efficiency is remarkably improved.

Description

Technical Field

[0001] This utility model relates to the technical field of chemical and pharmaceutical production equipment, specifically to a filtration device for chemical and pharmaceutical production. Background Technology

[0002] Chemical agents can be used in agricultural and industrial production. For example, pesticides can be used to control pests and diseases and regulate plant growth. Taking the production of pesticide solutions as an example, some solid impurities may be mixed in, which need to be filtered out by a filtration device before packaging and storage.

[0003] CN 221491669 U discloses a device for filtering and removing solid impurities from a solution, applicable to the field of pesticide production technology. It includes a frame with a filter barrel fixed on it. A flexible filter screen is installed inside the filter barrel, naturally concave downwards. As impurities gradually clog the flexible filter screen, the speed at which the pesticide solution passes through it slows down, causing the liquid level in the filter barrel to gradually rise. This causes a float mechanism to move upwards, deforming the flexible filter screen and making it convex upwards. This allows impurities to move towards the edge of the filter screen and enter a collection box. Simultaneously, a rotating base rotates, connecting a third liquid hole to the outlet end of the inlet mechanism. The third liquid hole is spiral-shaped, spraying out a spiral liquid flow to flush away impurities from the flexible filter screen. However, the following problems still exist: In reality, the solution sprayed from the lower surface of the rotating seat does not directly act on the impurities on the surface of the flexible filter screen. Especially when the solution level rises, the pressure on the flexible filter screen and the solid impurities on it is greater, and the turbulence effect of the sprayed solution is small, which cannot effectively remove the solid impurities on the flexible filter screen. Utility Model Content

[0004] The purpose of this invention is to provide a chemical production filtration device with a reasonable structure and reliable operation that solves the above-mentioned problems, facilitating the timely removal of solid impurities on the filter screen and significantly improving filtration efficiency.

[0005] The technical solution of this utility model is:

[0006] A filtration device for chemical reagent production includes a U-shaped support and a filter cylinder. The key technical features are: the centerline of the filter cylinder is parallel to the horizontal plane; a filter inner liner concentric with the centerline is provided within the filter cylinder; the filter cylinder consists of a central cylindrical section, a left conical section, and a right conical section connected to both ends of the central cylindrical section; both ends of the filter inner liner are respectively connected and fixed to the inner walls of the left and right conical sections; a solid shaft is provided at one end of the outer side of the filter cylinder, and a hollow shaft communicating with the inner cavity of the filter inner liner at the other end. The mandrel and hollow shaft are respectively supported by bearings on the left and right side walls of the U-shaped support. The outer wall of the filter cylinder is provided with an annular liquid inlet sleeve. The bottom surface of the U-shaped support is provided with a bracket connected to the annular liquid inlet sleeve. The filter cylinder is provided with multiple liquid inlet holes communicating with the annular liquid inlet sleeve. The top surface of the annular liquid inlet sleeve is fixed with a liquid inlet pipe. A rotary drive mechanism is provided between the U-shaped support and the filter cylinder. The outer end of the hollow shaft is connected to the liquid outlet pipe through a rotary joint. The outer wall of the filter cylinder is also provided with a slag discharge port.

[0007] The aforementioned filtration device for chemical and pharmaceutical production includes a rotary drive mechanism comprising a driven gear ring fixed to the outer wall of the filter cylinder, a drive motor fixed to the base plate of the U-shaped support, and a drive gear fixed to the output shaft of the drive motor and meshing with the driven gear ring.

[0008] In the aforementioned filtration device for chemical and pharmaceutical production, the inner circumferential wall of the middle cylindrical part of the filter cylinder is a conical surface, and the slag discharge port is located at the wide-diameter end of the conical surface.

[0009] The aforementioned filtration device for chemical and pharmaceutical production has a positioning frame on the side wall of the U-shaped support that is connected to the liquid outlet pipeline.

[0010] The aforementioned filtration device for chemical and pharmaceutical production has a drain port on the left or right conical section that is flush with the connection of the filter inner liner.

[0011] In the aforementioned filtration device for chemical and pharmaceutical production, the bottom plate of the U-shaped support is provided with a slag receiving box corresponding to the slag discharge port.

[0012] The beneficial effects of this utility model are:

[0013] The inlet pipe introduces the chemical reagent to be treated into the filter cartridge through an annular inlet sleeve, then through the inner filter liner into its cavity, and finally through a hollow shaft and rotary joint to the outlet pipe, thus achieving the filtration function. During the entire filtration process, the filter cartridge rotates around its center line using a rotary drive mechanism. This prevents solid impurities intercepted on the outer wall of the inner filter liner from adhering to it indefinitely; instead, they are in motion under the scouring effect of the liquid, effectively removing solid impurities from the inner filter liner without affecting its filtration operation, significantly improving filtration efficiency. After filtration, the solid impurities can be discharged from the filter cartridge via slag discharge, making cleaning convenient and quick. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] In the diagram: 1. Liquid outlet pipe, 2. Rotary joint, 3. Hollow shaft, 4. U-shaped support, 5. Filter cylinder, 6. Filter inner liner, 7. Annular liquid inlet sleeve, 8. Liquid inlet pipe, 9. Liquid inlet hole, 10. Driven gear ring, 11. Solid shaft, 12. Bearing, 13. Positioning frame, 14. Liquid outlet, 15. Slag outlet, 16. Slag receiving box, 17. Support, 18. Drive gear, 19. Drive motor. Detailed Implementation

[0016] The present invention will be described in detail with reference to the accompanying drawings.

[0017] like Figure 1 As shown, the filtration device for chemical reagent production includes a U-shaped support 4 and a filter cartridge 5.

[0018] The filter cylinder 5 has its centerline parallel to the horizontal plane, and a filter inner liner 6 is concentric with it. The filter cylinder 5 consists of a central cylinder, a left conical section, and a right conical section connected to both ends of the central cylinder. The two ends of the filter inner liner 6 are respectively connected and fixed to the inner walls of the left and right conical sections. A solid shaft 11 is provided at one end of the outer side of the filter cylinder 5, and a hollow shaft 3 communicating with the inner cavity of the filter inner liner 6 at the other end. The solid shaft 11 and the hollow shaft 3 are respectively supported by bearings 12 on the left and right side walls of a U-shaped support 4. A rotary drive mechanism is provided between the U-shaped support 4 and the filter cylinder 5. In this embodiment, the rotary drive mechanism includes a driven gear ring 10 fixed to the outer wall of the filter cylinder 5, a drive motor 19 fixed to the base plate of the U-shaped support 4, and a drive gear 18 fixed to the output shaft of the drive motor 19 and meshing with the driven gear ring 10.

[0019] The outer wall of the filter cylinder 5 is provided with an annular inlet sleeve 7, and the bottom surface of the U-shaped support 4 is provided with a bracket 17 connected to the annular inlet sleeve 7. The filter cylinder 5 is provided with multiple inlet holes 9 communicating with the annular inlet sleeve 7, and the top surface of the annular inlet sleeve 7 is fixed with an inlet pipe 8. The outer end of the hollow shaft 3 is connected to the outlet pipe 1 via a rotary joint 2. In this embodiment, the side wall of the U-shaped support 4 is provided with a positioning bracket 13 connected to the outlet pipe 1. The left or right conical section is provided with a drain port 14 flush with the connection part of the filter inner liner 6.

[0020] A slag discharge port 15 is provided on the outer side wall of the filter cylinder 5. In this embodiment, the inner circumferential wall of the middle cylinder of the filter cylinder 5 is a conical surface, and the slag discharge port 15 is located at the wide-diameter end of the conical surface. A slag receiving box 16 corresponding to the slag discharge port 15 is provided on the bottom plate of the U-shaped support 4.

[0021] Working principle:

[0022] Start the drive motor 19, which drives the filter cylinder 5 to rotate through the drive gear 18 and the driven gear ring 10. The annular liquid inlet sleeve 7 does not rotate and is provided with a sealing structure between it and the outer wall of the filter cylinder 5.

[0023] The chemicals to be filtered are delivered into the annular inlet sleeve 7 through the inlet pipe 8, and then into the filter cylinder 5 through various inlet holes 9. They then enter the cavity of the inner filter liner 6 through the filter holes on the inner filter liner 6, and finally exit through the hollow shaft 3 and rotary joint 2 to the outlet pipe 1, thus achieving the filtration function. Solid impurities intercepted on the outer wall of the inner filter liner 6 are continuously washed away by the chemicals as the filter cylinder 5 rotates, preventing them from adhering to the outer wall of the inner filter liner 6 and clogging the filter holes.

[0024] After the filtration process is complete, open the drain port 14 to drain the remaining liquid in the filter inner tank 6. Finally, open the slag discharge port 15 to discharge the mixture of solid impurities and some liquid into the slag collection box 16.

[0025] The embodiments of this utility model have been described in detail above, but the content described is only a preferred embodiment of this utility model and should not be considered as limiting the scope of implementation of this utility model. All equivalent changes and improvements made within the scope of this utility model should still fall within the scope of this patent.

Claims

1. A filtration device for chemical reagent production, comprising a U-shaped support and a filter cylinder, characterized in that: The centerline of the filter cylinder is parallel to the horizontal plane. A filter inner liner is concentric with the filter cylinder. The filter cylinder consists of a central cylinder, a left conical section, and a right conical section connected to both ends of the central cylinder. The two ends of the filter inner liner are respectively connected and fixed to the inner walls of the left and right conical sections. A solid shaft is located at one end of the outer side of the filter cylinder, and a hollow shaft communicating with the inner cavity of the filter inner liner is located at the other end. The solid and hollow shafts are supported by bearings on the left and right side walls of a U-shaped support. An annular liquid inlet sleeve is located on the outer wall of the filter cylinder. A bracket connected to the annular liquid inlet sleeve is located on the bottom surface of the U-shaped support. Multiple liquid inlet holes communicating with the annular liquid inlet sleeve are located on the filter cylinder. A liquid inlet pipe is fixed to the top surface of the annular liquid inlet sleeve. A rotary drive mechanism is located between the U-shaped support and the filter cylinder. The outer end of the hollow shaft is connected to an outlet pipe via a rotary joint. A slag discharge port is also located on the outer wall of the filter cylinder.

2. The filtration device for chemical reagent production according to claim 1, characterized in that: The rotary drive mechanism includes a driven gear ring fixed to the outer wall of the filter cylinder, a drive motor fixed to the base plate of the U-shaped support, and a drive gear fixed to the output shaft of the drive motor and meshing with the driven gear ring.

3. The filtration device for chemical reagent production according to claim 1, characterized in that: The inner circumferential wall of the middle cylinder of the filter tube is a conical surface, and the slag discharge port is located at the wide-diameter end of the conical surface.

4. The filtration device for chemical reagent production according to claim 1, characterized in that: The side wall of the U-shaped support is provided with a positioning frame that is connected to the liquid outlet pipeline.

5. The filtration device for chemical reagent production according to claim 1, characterized in that: The left or right conical section is provided with a drain port that is flush with the connection of the filter inner liner.

6. The filtration device for chemical reagent production according to claim 1, characterized in that: The base plate of the U-shaped support is provided with a slag receiving box corresponding to the slag discharge port.

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