An ultrafiltration device for separation and purification

Abstract

The invention relates to an ultrafiltration device for separation and purification applied in the field of separation, purification and filtration technology, comprising a tank body, a waisted opening, a filtrate ring bin, an ultrafiltration core rod, a screw disk and a filter bag. The invention delivers a solution with impurities into the filter bag through a liquid inlet pipe, and uses the filter bag to pre-filter the solution, thereby effectively preventing the impurities from affecting the filtration effect of the ultrafiltration core rod, and effectively improving the filtration efficiency of the ultrafiltration device. When the amount of impurities in the filter bag increases, the screw disk rotates to drive the filter bag to be tightened, and the solution in the impurities is squeezed out during the tightening process of the filter bag, which is convenient for sufficient ultrafiltration processing of the solution and effectively reduces the waste of the solution. At the same time, the squeezed impurities are formed into blocks, which is convenient for the impurities to be separated from the filter bag, thereby preventing the filter bag from being blocked by impurities, and further effectively improving the filtration processing efficiency of the ultrafiltration device.

Description

Technical Field

[0001] The invention relates to an ultrafiltration device, in particular to an ultrafiltration device used for separation and purification in the technical field of separation, purification and filtration. Background Art

[0002] In separation and purification technology, during the filtration and separation process of pharmaceutical solutions, the interior of the drug solutions contains medicinal impurities. Currently, collagen solutions are still separated and purified by dialysis in order to retain the target protein and remove impurities. The impurities in the solution are easy to adhere to the surface of the ultrafiltration membrane, thereby affecting the ultrafiltration effect of the solution.

[0003] The specification of Chinese invention patent CN202121772226.5 discloses "An ultrafiltration purification device for bovine serum". This patent pre-filters impurities contained in the bovine serum through a filter net. The pre-filtered bovine serum flows to the top of the partition, and then the controller controls the second motor and the ultraviolet sterilization lamp to work, and the ultraviolet sterilization lamp sterilizes the bovine serum.

[0004] Pre-filtration of impurities can effectively prevent impurities from adhering to the surface of the ultrafiltration membrane, but the filter used for pre-filtration is easily clogged by impurities, resulting in a decrease in the pre-filtration effect, thereby affecting the filtration efficiency of the ultrafiltration equipment. In addition, the impurities contain a large amount of solution, which cannot be filtered, affecting the collection of the filtrate. Summary of the invention

[0005] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is that the pre-filter is easily clogged by impurities, resulting in a decrease in the pre-filtration effect, thereby affecting the filtration efficiency of the ultrafiltration equipment, and the impurities contain a large amount of solution, which cannot be filtered, affecting the collection of the filtrate.

[0006] To solve the above problems, the present invention provides an ultrafiltration device for separation and purification, comprising a tank body, a waist-end fixedly connected to the bottom of the tank body, a filtrate ring bin fixedly sleeved outside the waist-end, ultrafiltration core rods distributed in a ring shape fixedly connected to the top of the filtrate ring bin, the ultrafiltration core rods extend into the interior of the tank body, a screw disk rotatably connected to the top of the tank body, a filter bag fixedly connected between the bottom of the screw disk and the top of the waist-end; a liquid inlet pipe and a liquid outlet pipe are fixedly connected to the top and bottom of the tank body respectively, the lower port of the liquid inlet pipe is plugged with the screw disk, the upper port of the liquid outlet pipe is fixedly connected to the waist-end, a lifting pipe is movably connected to the inside of the filter bag, an upper plug is fixedly connected to the top of the lifting pipe, a lower plug is sleeved on the bottom of the lifting pipe, the upper plug corresponds to the liquid inlet pipe, and the lower plug corresponds to the waist-end.

[0007] In the above-mentioned ultrafiltration equipment for separation and purification, the solution is pre-filtered through the filter bag. After the amount of impurities inside the filter bag increases, the screw disk drives the filter bag to rotate and tighten, squeezing out the solution in the impurities, effectively increasing the collection amount of the filtrate, and at the same time squeezing the impurities into a ball, which is convenient for the impurities in the filter bag to separate and detach, and to facilitate the cleaning of the filter bag.

[0008] As a further improvement of the present application, a filtrate tube is fixedly connected to the outside of the filtrate ring bin, and the filtrate tube extends through the tank body. The filtrate tube discharges the filtrate in the filtrate ring bin in a centralized manner, thereby facilitating the collection of the filtrate.

[0009] As a further improvement of the present application, the upper opening of the filter bag is fixedly connected with a bag opening ring, which is slidably connected to the inner wall of the twisting disk, and elastic ribs distributed in a ring are fixedly connected between the top of the bag opening ring and the top of the twisting disk. The elastic ribs buffer the tightening and contraction of the filter bag, effectively preventing the filter bag from being damaged by twisting.

[0010] As a further improvement of the present application, a slider is fixedly connected to the outer ring of the bag opening ring, a sliding groove is provided on the inner wall of the rotating disk, the sliding groove is slidably connected to the slider, and the slider slides in the sliding groove, so that the bag opening of the filter bag can follow the rotation of the rotating disk.

[0011] As another improvement of the present application, a connecting tube is fixedly connected between the bag mouth ring and the lower opening of the liquid inlet pipe. The connecting tube is made of an elastic bellows. The connecting tube facilitates the solution to directly enter the filter bag and facilitates the connecting tube to telescope as the filter bag is twisted.

[0012] As another improved supplement to the present application, the top of the lower plug is fixedly connected with an elastic cap, the top of the elastic cap is fixedly connected to the lifting tube, the connecting end of the elastic cap and the lifting tube and the bottom end of the lifting tube are fixedly connected with limiting rings, the two limiting rings correspond to the top and bottom ends of the lower plug respectively, the elastic cap is made of elastic rubber material, the elastic cap pulls the lower plug to rise, so that the lower plug can close the waist opening, and the limiting ring limits the maximum height and minimum height of the lower plug.

[0013] As another improved supplement of the present application, the top end of the lifting tube extends through the liquid inlet pipe, and the outside of the liquid inlet pipe is fixedly connected with a cylinder module. The output end of the cylinder module is fixedly connected to the top end of the lifting tube. The cylinder module drives the top end of the lifting tube, which facilitates the electric control operation of the lifting and lowering movement of the lifting tube, effectively improving the operating efficiency of the ultrafiltration equipment.

[0014] As another improvement of the present application, the middle part of the lifting tube and the top end of the ultrafiltration core rod are fixedly connected with a cleaning nozzle, and the outlet end of the cleaning nozzle corresponds to the inner wall of the filter bag and the rod body of the ultrafiltration core rod. The cleaning nozzle cleans the inner wall of the filter bag and the rod body of the ultrafiltration core rod, thereby facilitating the cleaning of the ultrafiltration equipment.

[0015] As another improvement supplement of the present application, a drain port is opened on the outside of the waist opening, and a sealing baffle is movably connected to the inside of the drain port. A lifting spring is fixedly connected to the bottom of the sealing baffle, and the tank body and the liquid outlet pipe are connected through the drain port to facilitate the discharge of residual solution in the tank body through the liquid outlet pipe. The lifting spring lifts the sealing baffle upward to realize automatic closing of the drain port by the sealing baffle.

[0016] As another improvement supplement to the present application, the bottom of the lower plug vertically corresponds to the middle of the sealing baffle, and a positioning rod is fixedly connected to the middle of the bottom end of the lower plug, which is inserted into the middle of the sealing baffle. When the lower plug drops excessively, the lower plug squeezes the sealing baffle downward to facilitate the sealing baffle to automatically open the drain port.

[0017] To sum up, the present invention delivers the solution containing impurities into the filter bag through the liquid inlet pipe, and uses the filter bag to pre-filter the solution, thereby effectively preventing the impurities from affecting the filtering effect of the ultrafiltration core rod; when the amount of impurities in the filter bag increases, the screw disk rotates to drive the filter bag to be tightened; during the tightening process of the filter bag, the solution in the impurities is squeezed out, which is convenient for sufficient ultrafiltration processing of the solution; at the same time, the squeezed impurities are formed into blocks, which is convenient for the impurities to leave the filter bag, thereby preventing the filter bag from being blocked by impurities, and effectively improving the filtering processing efficiency of the ultrafiltration equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a three-dimensional cross-sectional structural diagram of the first embodiment of the present application;

[0019] Figure 2 This is a three-dimensional structural diagram of the first embodiment of the present application;

[0020] Figure 3 A cross-sectional view of the first embodiment of the present application;

[0021] Figure 4 This is a three-dimensional structural diagram of the filtrate ring chamber and the ultrafiltration core rod in the first embodiment of the present application;

[0022] Figure 5 This is a demonstration diagram of the tightening changes of the filter bag in the first embodiment of the present application;

[0023] Figure 6 This is a three-dimensional structural diagram of a filter bag in the first embodiment of the present application;

[0024] Figure 7 This is a cross-sectional view of the waist opening of the first embodiment of the present application;

[0025] Figure 8 This is a three-dimensional structural diagram of the lifting tube and the blocking baffle plate of the first embodiment of the present application;

[0026] Fig. 9 This is a demonstration diagram of the stretching change of the elastic cap in the first embodiment of the present application;

[0027] Fig.10 This is a three-dimensional structural diagram of the waistline of the second embodiment of the present application.

[0028] Description of the numbers in the figure:

[0029] 1. Tank body; 101. Waistline; 102. Filtrate ring chamber; 103. Ultrafiltration core rod; 104. Screw plate; 105. Filtrate tube; 2. Liquid inlet pipe; 201. Cylinder module; 3. Liquid outlet pipe; 4. Filter bag; 401. Bag ring; 402. Elastic rib; 403. Slider; 404. Slide; 405. Connecting pipe; 5. Lifting pipe; 501. Upper blockage; 502. Lower blockage; 503. Elastic cap; 504. Limiting ring; 6. Cleaning nozzle; 7. Discharge port; 701. Blocking plate; 702. Lifting spring; 703. Positioning rod. DETAILED DESCRIPTION

[0030] Two implementation modes of the present application are described in detail below with reference to the accompanying drawings.

[0031] The first implementation method:

[0032] Figure 1-5 The invention shows an ultrafiltration device for separation and purification, comprising a tank body 1, a waist-reducing opening 101 being fixedly connected to the bottom of the tank body 1, a filtrate ring chamber 102 being fixedly sleeved outside the waist-reducing opening 101, ultrafiltration core rods 103 distributed in an annular shape being fixedly connected to the top of the filtrate ring chamber 102, the ultrafiltration core rods 103 extending into the interior of the tank body 1, a screw disk 104 being rotatably connected to the top of the tank body 1, a filter mesh bag 4 being fixedly connected between the bottom of the screw disk 104 and the top of the waist-reducing opening 101, a filtrate tube 105 being fixedly connected to the outside of the filtrate ring chamber 102, the filtrate tube 105 extending through the tank body 1, the filtrate tube 105 discharges the filtrate in the filtrate ring chamber 102 in a centralized manner, and is convenient for collecting the filtrate, the top and bottom ends of the tank body 1 being fixedly connected to a liquid inlet pipe 2 and a liquid outlet pipe 3 respectively, the lower opening of the liquid inlet pipe 2 being plugged into the screw disk 104, the upper opening of the liquid outlet pipe 3 being fixedly connected to the waist-reducing opening 101;

[0033] When the solution is ultrafiltered, the liquid inlet pipe 2 feeds the solution with impurities into the filter bag 4, and the filter bag 4 is used to pre-filter the solution, effectively preventing the impurities from affecting the filtering effect of the ultrafiltration core rod 103. When the impurities in the filter bag 4 gradually increase, after the impurities accumulate to a certain extent, such as Figure 5 As shown, the rotation of the screw disk 104 drives the filter bag 4 to be tightened, and the solution in the impurities is squeezed out during the spiral tightening of the filter bag 4, and the extruded solution continues to be ultrafiltered by the ultrafiltration core rod 103, so as to facilitate the sufficient ultrafiltration processing of the solution, and finally the impurities are squeezed into blocks, and the block impurities are easy to separate from the filter bag 4, thereby preventing the filter bag 4 from being blocked by impurities, and effectively improving the filtration processing efficiency of the ultrafiltration equipment.

[0034] Figure 5-6 The filter bag 4 is shown as follows: the upper opening of the filter bag 4 is fixedly connected with a bag opening ring 401, and the bag opening ring 401 is slidably connected to the inner wall of the screwing disk 104. The top of the bag opening ring 401 and the top of the screwing disk 104 are fixedly connected with elastic ribs 402 distributed in an annular shape. The elastic ribs 402 buffer the tightening and contraction of the filter bag 4, effectively preventing the filter bag 4 from being damaged by screwing. The outer ring of the bag opening ring 401 is fixedly connected with a slider 403, and the inner wall of the screwing disk 104 is provided with a slide groove 404. The slide groove 404 is slidably connected to the slider 403. The slider 403 slides in the slide groove 404, which is convenient for the bag opening of the filter bag 4 to follow the rotation of the screwing disk 104. A connecting pipe 405 is fixedly connected between the bag opening ring 401 and the lower opening of the liquid inlet pipe 2. The connecting pipe 405 is made of an elastic bellows. The connecting pipe 405 facilitates the solution to directly enter the filter bag 4, and facilitates the connecting pipe 405 to telescopic movement following the screwing of the filter bag 4.

[0035] When the screwing disk 104 rotates to drive the filter bag 4 to perform a tightening movement, the slider 403 slides in the slide groove 404, so that the bag mouth of the filter bag 4 follows the rotation of the screwing disk 104. At the same time, the overall length of the filter bag 4 is shortened due to the spiral, thereby stretching the elastic ribs 402. The elastic ribs 402 are used to buffer the tightening and shrinking tension of the filter bag 4, thereby preventing the filter bag 4 from being damaged by the tension. The connecting pipe 405 facilitates the solution to directly enter the filter bag 4, and facilitates the connecting pipe 405 to extend and retract following the screwing of the filter bag 4.

[0036] Figure 7-9 As shown, the filter bag 4 is movably connected with a lifting tube 5 inside, the top of the lifting tube 5 is fixedly connected with an upper plug 501, the bottom of the lifting tube 5 is sleeved with a lower plug 502, the upper plug 501 corresponds to the liquid inlet pipe 2, the lower plug 502 corresponds to the waist opening 101, the top of the lower plug 502 is fixedly connected with an elastic cap 503, the top of the elastic cap 503 is fixedly connected to the lifting tube 5, the connection end of the elastic cap 503 and the lifting tube 5 and the bottom end of the lifting tube 5 are fixedly connected with a limiting ring 504, and the two limiting rings 504 are respectively connected to the top and bottom ends of the lower plug 502 Correspondingly, the elastic cap 503 is made of elastic rubber material, and the elastic cap 503 pulls the lower plug 502 to rise, so that the lower plug 502 can close the waist opening 101, and the limit ring 504 limits the maximum height and the minimum height of the lower plug 502. The top of the lifting tube 5 extends through the liquid inlet pipe 2, and the outside of the liquid inlet pipe 2 is fixedly connected with the cylinder module 201. The output end of the cylinder module 201 is fixedly connected with the top of the lifting tube 5. The cylinder module 201 drives the top of the lifting tube 5, which is convenient for the electric control operation of the lifting and lowering movement of the lifting tube 5, and effectively improves the operating efficiency of the ultrafiltration equipment;

[0037] When the solution is pre-filtered and ultra-filtered, the upper plug 501 is in a position to open the liquid inlet pipe 2, and the lower plug 502 is in a position to block the lower plug 502. After the solution is pre-filtered by the filter bag 4, the ultra-filtering process is performed. When the filter bag 4 is tightened, the lifting pipe 5 is driven up by the cylinder module 201, driving the upper plug 501 to block the liquid inlet pipe 2. Fig. 9 As shown, the lower plug 502 originally blocks the waist opening 101. The upward force exerted on the lower plug 502 is buffered by stretching the elastic cap 503 to avoid affecting the upward movement of the lifting tube 5. When it is necessary to discharge impurities in the filter bag 4, first wait for the solution in the tank body 1 to be filtered out so that the impurities no longer contact the solution. Then, the filter bag 4 rotates and recovers, and the impurities fall and concentrate on the waist opening 101. The cylinder module 201 drives the lifting tube 5 to excessively descend, so that the lower plug 502 opens the waist opening 101, which is convenient for the discharge of impurities and the remaining solution, and convenient for the cleaning of impurities.

[0038] The second implementation method:

[0039] Compared with the first embodiment, this embodiment mainly adds a cleaning nozzle 6 and a liquid discharge port 7. The specific newly added structure is as follows, and the remaining structure is consistent with the first embodiment.

[0040] Figure 4 and 8 As shown, the middle part of the lifting tube 5 and the top end of the ultrafiltration core rod 103 are fixedly connected with a cleaning nozzle 6, and the outlet end of the cleaning nozzle 6 is correspondingly directed toward the inner wall of the filter bag 4 and the rod body of the ultrafiltration core rod 103. The cleaning nozzle 6 cleans the inner wall of the filter bag 4 and the rod body of the ultrafiltration core rod 103, which is convenient for cleaning the ultrafiltration equipment;

[0041] The cleaning nozzle 6 is used to spray water to clean the inner wall of the filter bag 4 and the rod body of the ultrafiltration core rod 103, so as to flush out impurities on the inner wall of the filter bag 4 and the rod body of the ultrafiltration core rod 103, thereby cleaning the impurities, facilitating the cleaning and maintenance of the ultrafiltration equipment, and thus increasing the service life of the ultrafiltration equipment.

[0042] Figure 7-10As shown, a discharge port 7 is provided on the outside of the waist-constricted opening 101, and a blocking baffle 701 is movably connected inside the discharge port 7, and a lifting spring 702 is fixedly connected to the bottom of the blocking baffle 701, and the tank body 1 and the liquid outlet pipe 3 are connected through the discharge port 7, so that the residual solution in the tank body 1 can be discharged from the liquid outlet pipe 3, and the lifting spring 702 lifts the blocking baffle 701 upward to realize that the blocking baffle 701 automatically closes the discharge port 7, and the bottom of the lower plug 502 is vertically corresponding to the middle part of the blocking baffle 701, and a positioning rod 703 is fixedly connected to the middle part of the bottom end of the lower plug 502, and the positioning rod 703 is plugged into the middle part of the blocking baffle 701. When the lower plug 502 drops excessively, the lower plug 502 squeezes the blocking baffle 701 downward, so that the blocking baffle 701 automatically opens the discharge port 7;

[0043] When cleaning the impurities in the filter bag 4 and cleaning and maintaining the ultrafiltration equipment, the lifting tube 5 drops excessively and the lower plug 502 opens the waist opening 101. The lower plug 502 applies downward pressure to the blocking baffle 701, thereby driving the blocking baffle 701 to open the drain port 7, so that the remaining solution in the tank body 1 enters the liquid outlet pipe 3 from the drain port 7, and the remaining solution is discharged from the tank body 1 along with the impurities, so as to facilitate the cleaning of the ultrafiltration equipment.

[0044] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. An ultrafiltration device for separation and purification, characterized in that: The invention comprises a tank body (1), wherein the bottom of the tank body (1) is fixedly connected to a waist-reducing opening (101), an outer fixed sleeve of the waist-reducing opening (101) is provided with a filtrate ring bin (102), the top of the filtrate ring bin (102) is fixedly connected to ultrafiltration core rods (103) distributed in a ring shape, the ultrafiltration core rods (103) extend into the tank body (1), the top of the tank body (1) is rotatably connected to a screw disk (104), and a filter bag (4) is fixedly connected between the bottom of the screw disk (104) and the top of the waist-reducing opening (101); The top and bottom ends of the tank body (1) are respectively fixedly connected to a liquid inlet pipe (2) and a liquid outlet pipe (3); the lower end of the liquid inlet pipe (2) is plugged into a screw disk (104); the upper end of the liquid outlet pipe (3) is fixedly connected to a waist opening (101); a lifting pipe (5) is movably connected inside the filter bag (4); an upper plug (501) is fixedly connected to the top of the lifting pipe (5); a lower plug (502) is sleeved on the bottom of the lifting pipe (5); the upper plug (501) corresponds to the liquid inlet pipe (2). The lower plug (502) corresponds to the waist opening (101), the top of the lower plug (502) is fixedly connected to an elastic cap (503), the top of the elastic cap (503) is fixedly connected to the lifting tube (5), the connection end of the elastic cap (503) and the lifting tube (5) and the bottom end of the lifting tube (5) are both fixedly connected to a limiting ring (504), the two limiting rings (504) correspond to the top and bottom ends of the lower plug (502) respectively, and the elastic cap (503) is made of elastic rubber material; The upper opening of the filter bag (4) is fixedly connected to a bag opening ring (401), the bag opening ring (401) is slidably connected to the inner wall of the twisting disk (104), a ring-shaped elastic rib (402) is fixedly connected between the top of the bag opening ring (401) and the top of the twisting disk (104), a slider (403) is fixedly connected to the outer ring of the bag opening ring (401), a slide groove (404) is provided on the inner wall of the twisting disk (104), the slide groove (404) and the slider (403) are slidably connected, and a connecting pipe (405) is fixedly connected between the bag opening ring (401) and the lower opening of the liquid inlet pipe (2), and the connecting pipe (405) is made of an elastic bellows; The middle part of the lifting tube (5) and the top end of the ultrafiltration core rod (103) are both fixedly connected with a cleaning nozzle (6); the outlet end of the cleaning nozzle (6) corresponds to the inner wall of the filter bag (4) and the rod body of the ultrafiltration core rod (103); the outside of the waisted opening (101) is provided with a drainage port (7); the inside of the drainage port (7) is movably connected with a blocking disk (701); the bottom of the blocking disk (701) is fixedly connected with a lifting spring (702); the bottom of the lower plug (502) vertically corresponds to the middle part of the blocking disk (701); the middle part of the bottom end of the lower plug (502) is fixedly connected with a positioning rod (703); the positioning rod (703) is plugged into the middle part of the blocking disk (701).

2. An ultrafiltration device for separation and purification according to claim 1, characterized in that: The outside of the filtrate ring bin (102) is fixedly connected with a filtrate tube (105), and the filtrate tube (105) penetrates the tank body (1) and extends out.

3. An ultrafiltration device for separation and purification according to claim 1, characterized in that: The top end of the lifting tube (5) extends through the liquid inlet tube (2), the outside of the liquid inlet tube (2) is fixedly connected to a cylinder module (201), and the output end of the cylinder module (201) is fixedly connected to the top end of the lifting tube (5).

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