Multifunctional stock solution filtering mechanism for processing dendrobium nobile freeze-dried powder

Abstract

The utility model relates to the technical field of dendrobium nobile processing, in particular to a multifunctional stock solution filtering mechanism for dendrobium nobile freeze-dried powder processing. Comprising a filter-pressing cylinder with an open right end, a filter screen mounted in the middle of the inner side of the filter-pressing cylinder, a one-way feed valve mounted at the upper end of the filter-pressing cylinder and positioned on the left side of the filter screen, a one-way discharge valve mounted on the right side of the lower end of the filter-pressing cylinder, and a seal head screw cap mounted at the right end of the filter-pressing cylinder in a threaded screwing manner. According to the utility model, the original stock solution filtering mechanism is scientifically and reasonably improved, and the ball screw, the support rotating stand, the nut pair and the scraping blade are arranged between the plunger disc and the filter pressing cylinder, so that the synchronous rotary scraping cleaning operation can be carried out on the filtering surface of the filter screen in the filter pressing processing process; the occurrence of the problems of relatively low flow filter-pressing efficiency, abnormal internal pressure and the like caused by the fact that solid impurities are adhered to the filter screen is effectively reduced, so that the stability and the efficiency of filter-pressing processing of the stock solution filtering mechanism are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of dendrobium processing, in particular to a multifunctional stock solution filtering mechanism for processing dendrobium freeze-dried powder. Background Art

[0002] At present, in the processing of freeze-dried powder of Dendrobium, fresh stems of Dendrobium need to be screened, washed, dried, pulped, filtered, freeze-dried and bagged on the processing line to lock the freshness of the stems of Dendrobium. The processed freeze-dried powder is easier to dissolve in water than dried Dendrobium products, and is more conducive to the user's absorption of nutrients such as dendrobine and dendrobium polysaccharides.

[0003] like Figure 3 As shown, it is a stock solution filtering mechanism currently installed on the processing line of freeze-dried powder of dendrobium, and its main function is to suck the negative pressure of the pulped dendrobium stock solution into the filter press, and then pressurize the dendrobium stock solution through the filter screen to filter out the fibrous tissue and solid particles remaining in the dendrobium stock solution. However, the above stock solution filtering mechanism has the following inconveniences in actual use: Since the dendrobium stock solution is rich in colloid and relatively viscous, impurities are easy to adhere to the filtering surface of the filter screen during the liquid filtration of the dendrobium stock. Although the filter screen can be disassembled and cleaned during equipment inspection and maintenance, when the filter screen is adhered to impurities during the processing, it is easy to cause the flowability of the filter screen to decrease, the filtration efficiency of the dendrobium stock solution to be low, and the internal pressure of the filter press is abnormal, which directly affects the stability and efficiency of the liquid filtration operation of the dendrobium stock.

[0004] In view of this, designing and manufacturing a raw liquid filtering mechanism that can reduce the adhesion of impurities on the filtering surface of the filter screen during the raw liquid filtration of Dendrobium is particularly important in the processing of Dendrobium freeze-dried powder. Utility Model Content

[0005] The purpose of the utility model is to solve the problem that in the traditional raw liquid filtering mechanism for processing freeze-dried powder of dendrobium, impurities are easily adhered to the filtering surface of the filter during the pressure process, thereby causing the flowability and filtering efficiency of the filter to gradually decrease, and a multifunctional raw liquid filtering mechanism for processing freeze-dried powder of dendrobium is proposed.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A multifunctional raw liquid filtering mechanism for processing freeze-dried powder of dendrobium comprises a filter press with an opening at the right end, a filter screen installed at the middle of the inner side of the filter press, a one-way feed valve installed at the upper end of the filter press and located on the left side of the filter screen, a one-way discharge valve installed at the right side of the lower end of the filter press, a head screw cap installed on the right end of the filter press by threaded engagement, a hydraulic cylinder installed at the left end of the filter press, a plunger disc installed on the telescopic end of the hydraulic cylinder and located on the inner side of the filter press, and a rotary scraping mechanism is arranged on the inner side of the filter press between the plunger disc and the filter screen for preventing filter residue from adhering to and clogging the filter screen during raw liquid filtration.

[0008] As a further description of the above technical solution:

[0009] The rotary scraping mechanism includes a supporting rotating frame fixedly installed inside the filter press and located on the left side of the filter screen, a nut pair rotatably installed on the upper end of the supporting rotating frame and coaxial with the filter screen, a scraping blade fixed on the outside of the nut pair and in contact with the outer wall of the left end of the filter screen, and a ball screw fixed at the axis of the right end of the plunger disk and matching the nut pair.

[0010] As a further description of the above technical solution:

[0011] The scraping blades are provided in plurality, and the plurality of scraping blades are distributed at equal angles outside the nut pair, and the plurality of scraping blades are distributed obliquely with respect to the filter screen.

[0012] As a further description of the above technical solution:

[0013] A through hole for the ball screw to be inserted transversely is opened at the axis center of the filter screen, and the ball screw and the through hole are in transitional fit.

[0014] As a further description of the above technical solution:

[0015] The lower end of the filter press cylinder is located below the filter screen and is provided with a slag discharge part for quick slag discharge operation.

[0016] As a further description of the above technical solution:

[0017] The slag discharge part comprises a slag discharge port connected to the lower end of the filter press and located between the filter screen and below the scraper blades, and a slag collecting screw cap installed at the lower end of the slag discharge port through threaded engagement.

[0018] As a further description of the above technical solution:

[0019] The outer sleeve of the plunger disc is provided with a plunger rubber ring which fits the inner wall of the filter press cylinder. The left end of the filter press cylinder is located on the left side of the plunger disc and is provided with a ventilation hole.

[0020] As a further description of the above technical solution:

[0021] The lower end of the filter press is symmetrically fixedly connected with two mounting frames in an L-shaped structure, and the horizontal ends of the mounting frames are provided with mounting holes.

[0022] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0023] 1. In the utility model, the original raw liquid filtering mechanism is scientifically and rationally improved, and a ball screw, a supporting rotating frame, a nut pair and a scraper blade are arranged between the plunger disc and the filter press. During the raw liquid filtration of Dendrobium, the hydraulic cylinder will drive the plunger disc and the ball screw to move synchronously toward the filter screen. During the process of the plunger disc squeezing the raw liquid of Dendrobium through the filter screen, the horizontally moving ball screw can drive the nut pair on the supporting rotating frame to rotate, thereby driving multiple scraper blades to continuously scrape the filtering surface of the filter screen. This structure can perform synchronous scraping and cleaning operations on the filtering surface of the filter screen during the filter press process, effectively reducing the occurrence of problems such as low flow filter efficiency and abnormal internal pressure caused by the adhesion of solid impurities to the filter screen, thereby improving the stability and efficiency of the filter press process of the raw liquid filtering mechanism.

[0024] 2. In the utility model, a slag discharge port and a collecting screw cap are provided on the original filter press cylinder. Under the rotary scraping action of the scraper blades and the combined action of gravity, the solid impurities will be concentrated through the slag discharge port and enter the slag collecting screw cap. When performing light cleaning and maintenance operations on the filter screen, there is no need to unscrew the head screw cover. The filtered solid impurities can be flushed out by unscrewing the slag collecting screw cap. This structure can centrally collect and discharge the solid impurities filtered by the filter screen, which can effectively reduce the workload and difficulty of the staff in performing cleaning and maintenance operations of the raw liquid filtering mechanism, thereby improving the convenience and efficiency of daily cleaning and maintenance operations of the raw liquid filtering mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic structural diagram of a multifunctional stock solution filtering mechanism for processing freeze-dried dendrobium powder proposed by the utility model;

[0026] Figure 2 It is a partial 90° angle cutaway schematic diagram of the medium-pressure filter cartridge of the utility model;

[0027] Figure 3 The present invention is a schematic structural diagram of a stock solution filtering mechanism for processing freeze-dried powder of Dendrobium officinale in the prior art.

[0028] Legend:

[0029] 1. Filter cartridge; 101. One-way feed valve; 102. One-way discharge valve; 103. Head screw cap; 104. Mounting frame; 105. Slag discharge port; 106. Slag collecting screw cap; 107. Ventilation hole; 2. Hydraulic cylinder; 201. Plunger plate; 202. Plunger rubber ring; 3. Filter screen; 4. Support rotating frame; 5. Ball screw; 6. Nut pair; 601. Scraper blade. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] See also Figure 1 and Figure 2 The utility model provides a technical solution: a multifunctional raw liquid filtering mechanism for processing freeze-dried powder of dendrobium, comprising a filter press 1 with an opening at the right end, a filter screen 3 installed in the middle of the inner side of the filter press 1, a one-way feed valve 101 installed at the upper end of the filter press 1 and located on the left side of the filter screen 3, a one-way discharge valve 102 installed on the right side of the lower end of the filter press 1, a head screw cover 103 installed on the right end of the filter press 1 by threaded engagement, a hydraulic cylinder 2 installed at the left end of the filter press 1, a plunger disc 201 installed on the telescopic end of the hydraulic cylinder 2 and located on the inner side of the filter press 1, and a rotary scraping mechanism for preventing filter residue from adhering to and clogging the filter screen 3 during raw liquid filtration is provided on the inner side of the filter press 1 between the plunger disc 201 and the filter screen 3.

[0032] Specifically, Figure 1 and Figure 2 As shown, the rotary scraping mechanism includes a supporting rotating frame 4 fixedly mounted inside the filter press 1 and located on the left side of the filter screen 3, a nut pair 6 rotatably mounted on the upper end of the supporting rotating frame 4 and coaxial with the filter screen 3, a scraping blade 601 fixed on the outside of the nut pair 6 and in contact with the outer wall of the left end of the filter screen 3, and a ball screw 5 fixed at the axis of the right end of the plunger disk 201 and matched with the nut pair 6. When the ball screw 5 moves horizontally, under the action of the spiral transmission between the ball screw 5 and the nut pair 6, the horizontal movement can be converted into the rotational movement of the nut pair 6, thereby driving the scraping blade 601 to rotate, wherein a plurality of scraping blades 601 are provided, and the plurality of scraping blades 601 are distributed at equal angles on the outside of the nut pair 6, and the plurality of scraping blades 601 are all obliquely distributed with respect to the filter screen 3, so that a scraping bevel angle can be formed between the scraping blade 601 and the filter screen 3, thereby facilitating the scraping of solid impurities on the filter screen 3 from the filter screen 3.

[0033] At the same time, a through hole for the ball screw 5 to be inserted horizontally is opened at the axis of the filter screen 3, and the ball screw 5 and the through hole are transitionally matched. The selection of this matching method avoids the interference of the filter screen 3 on the horizontal movement of the ball screw 5 without affecting the filtering of the dendrobium stock solution by the filter screen 3.

[0034] Specifically, Figure 1 and Figure 2 As shown, the lower end of the filter press cartridge 1 is located below the filter screen 3 and is provided with a slag discharge part for quick discharge of filtered residue. The slag discharge part includes a slag discharge port 105 which is connected to the lower end of the filter press cartridge 1 and is located between the filter screen 3 and below the scraper blade 601, and a slag collecting screw cap 106 which is installed at the lower end of the slag discharge port 105 by screwing. When the slag collecting screw cap 106 is unscrewed, filtered impurities collected between the slag discharge port 105 and the slag collecting screw cap 106 can be discharged from the filter press cartridge 1, and the filter screen 3 in the filter press cartridge 1 can be rinsed through the slag discharge port 105.

[0035] Specifically, Figure 1 and Figure 2 As shown, the outer sleeve of the plunger disk 201 is provided with a plunger rubber ring 202 that fits with the inner wall of the filter cartridge 1. The connecting gap between the plunger disk 201 and the filter cartridge 1 can be blocked and sealed, thereby ensuring the horizontal movement of the plunger disk 201 in the filter cartridge 1 and the air tightness of the filter pressing operation. The left end of the filter cartridge 1 is located on the left side of the plunger disk 201 and is provided with a ventilation hole 107. During the operation of the hydraulic cylinder 2, the air of the external environment can be sucked into the space between the filter cartridge 1 and the left half of the plunger disk 201, or the air of the filter cartridge 1 and the left half of the plunger disk 201 can be discharged to the external environment. The lower end of the filter cartridge 1 is symmetrically fixedly connected with two mounting frames 104 in the shape of an L-shaped structure. The horizontal end of the mounting frame 104 is provided with a mounting hole, which is convenient for the mounting frame 104 to be fixedly installed on the filter pressing station of the freeze-dried powder processing line of Dendrobium by fasteners.

[0036] Working principle: When in use, the filter press cartridge 1 can be fixed to the filter press station of the dendrobium freeze-dried powder processing line through fasteners and the mounting frame 104, and then the dendrobium stock solution delivery pipeline is respectively connected to the one-way feed valve 101 and the one-way discharge valve 102, and finally the hydraulic cylinder 2 is connected to the hydraulic oil line of the freeze-dried powder processing line, and the assembly operation of the stock solution filtration mechanism and the dendrobium freeze-dried powder processing line is completed. During daily filtration, when the hydraulic cylinder 2 contracts inward, the filter press cartridge 1 will be in a negative pressure state. At this time, the dendrobium stock solution in the dendrobium stock solution pipeline can be sucked into the space between the filter press cartridge 1 and the left half of the filter screen 3 through the one-way feed valve 101. When the hydraulic cylinder 2 contracts inward, the filter press cartridge 1 will be in a negative pressure state. When extending outward, the pressure cylinder 1 will be in a positive pressure state. At this time, the plunger disk 201 will push the dendrobium stock solution in the left half of the filter press cylinder 1 to move toward the filter screen 3, and the dendrobium stock solution can be pressurized to pass through the filter screen 3 and the one-way discharge valve 102 to discharge the filter press cylinder 1. At the same time, when the plunger disk 201 moves horizontally in the filter press cylinder 1, the ball screw 5 also moves horizontally. The horizontally moving ball screw 5 can drive the nut pair 6 on the supporting rotating frame 4 to rotate, thereby driving multiple scraping blades 601 to continuously scrape the filtering surface of the filter screen 3. Under the combined effect of scraping and gravity, the filtered solid impurities can pass downward through the slag discharge port 105 and enter the slag collecting cap 106.

[0037] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A multifunctional raw liquid filtering mechanism for processing freeze-dried powder of Dendrobium officinale, comprising a filter cartridge (1) with an opening at the right end, a filter screen (3) installed at the middle of the inner side of the filter cartridge (1), a one-way feed valve (101) installed at the upper end of the filter cartridge (1) and located on the left side of the filter screen (3), a one-way discharge valve (102) installed at the right side of the lower end of the filter cartridge (1), a head screw cover (103) installed on the right end of the filter cartridge (1) by screwing, a hydraulic cylinder (2) installed at the left end of the filter cartridge (1), and a plunger disk (201) installed on the telescopic end of the hydraulic cylinder (2) and located on the inner side of the filter cartridge (1), characterized in that: A rotary scraping mechanism is provided on the inner side of the filter press cylinder (1) between the plunger disc (201) and the filter screen (3) for preventing filter residue from adhering to and clogging the filter screen (3) during the raw liquid filtration process.

2. The multifunctional stock solution filtering mechanism for processing freeze-dried powder of Dendrobium officinale according to claim 1, characterized in that: The rotary scraping mechanism comprises a supporting rotating frame (4) fixedly mounted inside the filter cartridge (1) and located on the left side of the filter screen (3), a nut pair (6) rotatably mounted on the upper end of the supporting rotating frame (4) and coaxial with the filter screen (3), a scraping blade (601) fixed outside the nut pair (6) and in contact with the outer wall of the left end of the filter screen (3), and a ball screw (5) fixed at the axis of the right end of the plunger disk (201) and matching the nut pair (6).

3. The multifunctional stock solution filtering mechanism for processing freeze-dried powder of Dendrobium officinale according to claim 2, characterized in that: A plurality of scraper blades (601) are provided, and the plurality of scraper blades (601) are distributed at equal angles outside the nut pair (6), and the plurality of scraper blades (601) are distributed obliquely with respect to the filter screen (3).

4. The multifunctional stock solution filtering mechanism for processing freeze-dried powder of Dendrobium officinale according to claim 2, characterized in that: A through hole for the ball screw (5) to be inserted transversely is provided at the axis center of the filter screen (3), and the ball screw (5) and the through hole are in transitional fit.

5. The multifunctional stock solution filtering mechanism for processing freeze-dried powder of Dendrobium officinale according to claim 2, characterized in that: The lower end of the filter press cylinder (1) is located below the filter screen (3) and is provided with a slag discharge portion for quick slag discharge.

6. The multifunctional stock solution filtering mechanism for processing freeze-dried powder of Dendrobium officinale according to claim 5, characterized in that: The slag discharge portion comprises a slag discharge port (105) connected to the lower end of the filter press (1) and located between the filter screen (3) and below the scraper blade (601), and a slag collecting screw cap (106) installed at the lower end of the slag discharge port (105) by screwing.

7. The multifunctional stock solution filtering mechanism for processing freeze-dried powder of Dendrobium officinale according to claim 1, characterized in that: The plunger disc (201) is sleeved externally with a plunger rubber ring (202) that fits the inner wall of the filter press cylinder (1), and a ventilation hole (107) is provided at the left end of the filter press cylinder (1) located on the left side of the plunger disc (201).

8. The multifunctional stock solution filtering mechanism for processing freeze-dried powder of Dendrobium officinale according to claim 1, characterized in that: Two L-shaped mounting frames (104) are symmetrically fixedly connected to the lower end of the filter cartridge (1), and mounting holes are provided on the horizontal ends of the mounting frames (104).

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