A plate filter device for dextran

Abstract

The utility model relates to the technical field of dextran filtration, and specifically to a plate-type filtration device for dextran, which solves the technical problem that impurities remain in the device, resulting in a decrease in filtering effect, and particularly relates to a housing and a filter installed in the housing, wherein a plurality of suction pipes for absorbing impurities on the filter surface are provided in the housing, and the surfaces of the suction pipes are provided with a collecting mechanism for concentrating impurities on the filter surface; the collecting mechanism comprises an arc groove provided on the surface of the suction pipe, a spring fixedly connected to the suction pipe is provided in the arc groove, and a push plate sliding on the filter surface is provided at the lower end of the arc groove. The utility model absorbs impurities on the filter surface by rotating the suction pipe, and two inclined plates concentrate the impurities contacted to the vicinity of the output end of the suction pipe, which is conducive to the suction pipe removing impurities on the filter surface, enhancing the effect of cleaning impurities of the device, and facilitating workers to operate the equipment for multiple dextran solution filtrations.

Description

Technical Field

[0001] The utility model relates to the technical field of dextran filtering, in particular to a plate-type filtering device for dextran. Background Art

[0002] The prior art discloses a precise micromolecular dextran fine filtration device with a publication number of CN213668181U. The device introduces a dextran solution and then filters the dextran solution three times, thereby effectively filtering out impurities in the solution and extracting residual impurities in the device, thereby achieving the purpose of cleaning the filtration device.

[0003] However, when using the device, the water pump of the device generates negative pressure, so that the suction pipe can extract impurities within a certain range. At the same time, the electric motor will drive the hollow shaft of the motor to rotate, so that the suction pipe can rotate and extract impurities in the device at the same time. Since the effective range of the suction force of the suction pipe is the cross-sectional size of the output end of the suction pipe head, there is a blind spot for cleaning between two adjacent suction pipes, resulting in the accumulation of impurities on the surface of the filtering equipment in the device. Moreover, due to the integrated design of the device, it is not conducive to manual cleaning, which affects the filtering effect of the device. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a plate-type filtering device for dextran, which solves the technical problem that impurities remain in the device, resulting in reduced filtering effect, and achieves the purpose of maintaining the normal operation of the device.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] A plate-type filtering device for dextran, comprising a housing and a filter installed in the housing, wherein a plurality of suction pipes for sucking impurities on the surface of the filter are arranged in the housing, and a collecting mechanism for collecting impurities on the surface of the filter is arranged on the surface of the suction pipes;

[0007] The collecting mechanism comprises an arc groove arranged on the surface of the sewage suction pipe, a spring fixedly connected to the sewage suction pipe is arranged in the arc groove, and a push plate sliding on the filter surface is arranged at the lower end of the arc groove.

[0008] Furthermore, a limiting groove is provided in the arc-shaped groove, and a limiting rod sliding in the limiting groove is provided on the surface of the sewage suction pipe.

[0009] Furthermore, the push plate member includes a first inclined plate and a second inclined plate arranged at the lower end of the arc-shaped groove, and a brush sliding on the filter surface is arranged below the first inclined plate and the second inclined plate.

[0010] Furthermore, the length of the first inclined plate is greater than that of the second inclined plate, and a collection area is set between the first inclined plate and the second inclined plate.

[0011] Furthermore, a water pump is provided outside the shell, a water pipe is provided at the output end of the water pump, and a spray nozzle fixedly connected to the test tube is provided inside the shell.

[0012] Furthermore, the plurality of spray nozzles are located above the filter.

[0013] By means of the above technical solution, the utility model provides a plate-type filtering device for dextran, which has at least the following beneficial effects:

[0014] 1. Due to the setting of the collecting mechanism of the utility model, while the suction pipe rotates on the filter surface to absorb impurities, the two inclined plates concentrate the impurities in contact around the output end of the suction pipe, which is conducive to the suction pipe to remove impurities on the filter surface, enhances the effect of cleaning impurities of the device, and is convenient for workers to operate the equipment to filter dextran solutions multiple times.

[0015] 2. Due to the arrangement of the water pump and the spray nozzle, the utility model provides a steady stream of water through the water pump. Under the pressurized action of the spray nozzle, a large amount of water mist will wet the impurities on the surface of the filter. At the same time, the water will pass through the filter, thereby wetting the impurities in the device, and cooperate with the sewage suction pipe to remove the impurities attached to the surface of the filter, which is conducive to maintaining the normal use of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute improper limitations on the present application.

[0017] In the attached picture:

[0018] Figure 1 It is a schematic diagram of the overall side section structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the overall cross-sectional structure of the utility model

[0020] Figure 3 for Figure 2 An enlarged schematic diagram of structure A of the utility model;

[0021] Figure 4 It is a two-dimensional schematic diagram of the push plate member of the utility model from top view;

[0022] Figure 5 This is a structural schematic diagram of the second embodiment of the utility model.

[0023] In the figure: 1, shell; 2, filter; 3, sewage suction pipe; 4, collecting mechanism; 41, arc groove; 42, spring; 43, push plate; 431, first inclined plate; 432, second inclined plate; 433, brush; 44, collecting area; 45, limit groove; 46, limit rod; 5, water pump; 6, water pipe; 7, spray nozzle. DETAILED DESCRIPTION

[0024] 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 in 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.

[0025] When using the device, workers will introduce dextran solution from the top of the device, so that the dextran solution forms the first filtration with the filter plate, the second filtration with the conical filter, and finally the third filtration with the filter net, and then discharged from the drain port, thereby achieving the fine filtration of the dextran. After the filtration of the dextran solution of this batch is completed, the electric valve is controlled to close the drain port, and the water pump is controlled to work at the same time. Since negative pressure is generated when the water pump is working, a certain suction force is generated at the output ends of the first sewage suction pipe, the second sewage suction pipe and the third sewage suction pipe, and impurities remaining on the conical filter, the filter net and the filter plate are extracted to achieve the purpose of self-cleaning of the device. However, due to the limited number of sewage suction pipes, it is impossible to ensure that the sewage suction pipe can absorb impurities in the place where the sewage suction pipe cannot move, resulting in device residues in the device, which pollutes the dextran solution in the device when the device is used again, affecting the filtering effect of the device.

[0026] Example 1

[0027] The filtering device performs fine filtering of the dextran solution through three filtrations, which is beneficial for workers to use the integrated device for the production of dextran, and the vacuum pump and the motor are started at the same time, so that the sewage pipe 6 can absorb the impurities attached to the surface of the filter 2. However, due to the limitation of the suction force of the sewage pipe 6, there are cleaning dead corners between adjacent sewage pipes 6, which causes accumulation in the cleaning dead corners of the device, polluting the dextran solution in the device, which is not conducive to the workers operating the device to perform fine filtering of the dextran solution again, reducing the effect of the device on filtering the dextran solution. The present embodiment provides a plate-type filtering device for dextran, such as Figure 1-Figure 4As shown, it includes a housing 1 and a filter 2 installed in the housing 1. The filter 2 is a conical filter, a filter screen and a filter plate arranged in the device. The dextran solution passes through the filter 2 successively to complete three filtrations, thereby achieving fine filtration of the dextran. The housing 1 is provided with a plurality of suction pipes 3 for absorbing impurities on the surface of the filter 2. The suction pipes 3 will generate suction force to absorb impurities adsorbed on the surface of the conical filter, the filter screen and the filter plate into the suction pipes 3, thereby achieving the purpose of cleaning the surface of the conical filter, the filter screen and the filter plate. The surface of the suction pipes 3 is provided with a filter for sucking the filter. 2. The collecting mechanism 4 concentrates impurities on the surface of the filter 2. When the worker operates the device to perform fine filtration of the dextran solution, the dextran solution is introduced into the device and contacts the filter 2 and is filtered three times, so that the impurities in the dextran solution are greatly reduced. At the same time, the cleaning component in the device works to remove the impurities attached to the surface of the filter 2. At the same time, with the action of the collecting mechanism 4, the impurities in an area can be concentrated, and each area is connected to each other, so as to cover the surface of the entire filtering mechanism, which is conducive to the suction pipe 3 to completely remove the impurities attached to the surface of the filter 2.

[0028] Since the effective range of suction force of the sewage suction pipe 3 is the cross-sectional area of ​​the output end of the sewage suction pipe 3, when the sewage suction pipe 3 rotates on the surface of the filter 2 to extract impurities, there may be a cleaning blind area between adjacent sewage suction pipes 3, so that impurities in the dextran solution accumulate in this area, which is not conducive to keeping the surface of the filter 2 clean and tidy, and weakens the fine filtering effect of the equipment. The collecting mechanism 4 includes an arc groove 41 arranged on the surface of the sewage suction pipe 3, which is an equal arc with the arc surface corresponding to the contact filter 2, so that the filter 2 is divided into different areas at the position where the pusher slides on the surface of the filter 2. A spring 42 fixedly connected to the sewage suction pipe 3 is arranged in the arc groove 41. When the motor drives the sewage suction pipe 3 to rotate in the device, the pusher has a certain inertia, which will squeeze the spring 42 to contract. At the same time, the pusher moves backward a certain distance, increasing the distance between it and the sewage suction pipe 3, which is conducive to the impurities collected by the pusher to gather here. When the machine stops driving the sewage suction pipe 3 to rotate, the pushing member is pushed by the spring 42, shortening the distance between the pushing member and the sewage suction pipe 3, so that the impurities remaining in the pushing member can be sucked up by the sewage suction pipe 3, and the lower end of the arc groove 41 is provided with a pushing plate 43 sliding on the surface of the filter 2, which can concentrate the impurities within the movement range during the movement, which is beneficial for the sewage suction pipe 3 to absorb the impurities within the range. When the cleaning component of the device is working, it will drive the sewage suction pipe 3 to rotate on the surface of the filter 2 to absorb impurities, and when the sewage suction pipe 3 rotates forward, the pushing member has inertia, which will drive the arc groove 41 to squeeze the spring 42, increase the distance between the pushing member and the sewage suction pipe 3, so that the impurities collected by the pushing member move between the pushing member and the sewage suction pipe 3, which is beneficial for the sewage suction pipe 3 to better absorb the impurities attached to the surface of the filter 2, reduce the residual impurities in the shell 1, and improve the cleaning effect of the cleaning mechanism.

[0029] A limiting groove 45 is provided in the arc groove 41, and a limiting rod 46 sliding in the limiting groove 45 is provided on the surface of the sewage suction pipe 3. When the arc groove 41 squeezes the spring 42, the limiting grooves 45 on both sides of the arc groove 41 slide in the limiting rod 46, so that the limiting grooves 45 are always in contact with the surface of the filter 2 when moving, which is beneficial for the arc groove 41 to maintain contact with the arc surface when the pushing member slides on the arc surface.

[0030] Since the pusher will concentrate the impurities in the range during the movement, it is beneficial for the suction pipe 3 to absorb the impurities in the pusher. The push plate 43 includes a first inclined plate 431 and a second inclined plate 432 arranged at the lower end of the arc groove 41. A brush 433 sliding on the surface of the filter 2 is arranged below the first inclined plate 431 and the second inclined plate 432. When the suction pipe 3 slides on the surface of the filter 2, the length of the first inclined plate 431 is greater than the length of the second inclined plate 432, and the space between the first inclined plate 431 and the second inclined plate 432 is set as a collection area 44. The first inclined plate 431 and the second inclined plate 432 have a certain inclination angle, so that the first inclined plate 431 and the second inclined plate 432 form an obtuse angle on the side facing the sewage suction pipe 3. During the movement, the impurities in the obtuse angle are concentrated to the collection area 44 along the surface of the first inclined plate 431 and the second inclined plate 432, and one end of the first inclined plate 431 on the side of the adjacent sewage pipe 6 is located directly above one end of the second inclined plate 432, so that there will be no cleaning dead corners where the two inclined plates move, which is conducive to workers operating the device to perform fine filtration of the dextran solution again.

[0031] Example 2

[0032] When there are more impurities in the dextran solution, the amount of impurities collected by the pusher is greater than the amount of impurities absorbed by the suction pipe 3, which will cause the movement of the pusher on the surface of the filter 2 to be restricted, and it is easy to cause the impurities in the pusher to be dispersed into the device, which is not conducive to the pusher to collect and remove the impurities attached to the surface of the filter 2. Based on Example 1, Figure 5 As shown, a water pump 5 is provided outside the shell 1, and a water pipe 6 is provided at the output end of the water pump 5. A spray nozzle 7 fixedly connected to the test tube is provided inside the shell 1. Since multiple spray nozzles 7 are located above the filter 2, when the water pump 5 transports clean water from the outside to the spray nozzle 7 through the water pipe 6, a large amount of water mist is sprayed from the spray nozzle 7 under the pressurized action of the multiple spray nozzles 7, so as to achieve the purpose of wetting the surface of the filter 2, so that the stickiness between impurities is increased, the suction pipe 3 is increased to absorb impurities in the pushing member, the efficiency of the cleaning component in absorbing impurities is improved, and the normal filtering effect of the device is maintained.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A plate-type filtering device for dextran, comprising a housing (1) and a filter (2) installed in the housing (1), wherein the housing (1) is provided with a plurality of suction pipes (3) for absorbing impurities on the surface of the filter (2), characterized in that: The surface of the sewage suction pipe (3) is provided with a collecting mechanism (4) for collecting impurities on the surface of the filter (2); The collecting mechanism (4) comprises an arc-shaped groove (41) arranged on the surface of the sewage suction pipe (3), a spring (42) fixedly connected to the sewage suction pipe (3) is arranged in the arc-shaped groove (41), and a push plate (43) sliding on the surface of the filter (2) is arranged at the lower end of the arc-shaped groove (41).

2. A plate-type filtering device for dextran according to claim 1, characterized in that: A limiting groove (45) is provided in the arc-shaped groove (41), and a limiting rod (46) is provided on the surface of the sewage suction pipe (3) and slides in the limiting groove (45).

3. A plate-type filtration device for dextran according to claim 1, characterized in that: The push plate member (43) comprises a first inclined plate (431) and a second inclined plate (432) arranged at the lower end of the arc-shaped groove (41); a brush (433) sliding on the surface of the filter (2) is arranged below the first inclined plate (431) and the second inclined plate (432).

4. A plate-type filtering device for dextran according to claim 3, characterized in that: The length of the first inclined plate (431) is greater than the length of the second inclined plate (432), and a collection area (44) is provided between the first inclined plate (431) and the second inclined plate (432).

5. A plate-type filtering device for dextran according to claim 1, characterized in that: A water pump (5) is provided outside the housing (1), a water pipe (6) is provided at the output end of the water pump (5), and a spray nozzle (7) fixedly connected to the test tube is provided inside the housing (1).

6. A plate-type filtering device for dextran according to claim 5, characterized in that: The plurality of spray nozzles (7) are located above the filter (2).

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