A new filtering device

Abstract

A novel filtering device, including filter box, liquid inlet pipe, filter screen, liquid outlet pipe, characterized by further including tank cover, water tank, waste pipe and slope type partition frame, the water tank is fixedly installed on the outer edge of the upper end of the filter box, the tank cover is movably installed on the water tank; The waste pipe is arranged at the upper end of the filter box; The slope type partition frame is sealingly welded with the bottom of the filter box, the opening is arranged at the slope of the slope type partition frame, and the filter screen is detachably installed at the opening; The liquid outlet of the liquid inlet pipe faces downward and is located below the high side of the slope type partition frame, and the liquid outlet pipe is arranged at the bottom of the filter box and placed in the cavity of the slope type partition frame. The utility model has the advantages of simple structure, simple maintenance and greatly improved filtering efficiency.

Description

Technical Field

[0001] This utility model relates to the field of fiber spinning, and in particular to a novel filtration device in the overflow pipeline of the extractant in an extraction machine. Background Technology

[0002] In complete sets of equipment for ultra-high molecular weight polyethylene and other fibers, the extraction machine is a key piece of equipment in the post-processing stage. Its function is to extract the white oil contained in the fiber bundle using an extractant. Currently, dichloromethane is commonly used as the extractant. In the extraction tank, dichloromethane and the white oil contained in the fiber bundle are miscible to form a mixture. The mixture flows out through the overflow port of the equipment and flows through the return pipeline to the recovery tank for treatment and recycling. Because the mixture contains waste fibers and impurities, a pipeline filter needs to be installed on the return pipeline. Due to the small filtration area of ​​the pipeline filter, it is prone to clogging during use. When clogging occurs, the liquid must be cut off before the filter screen can be removed for cleaning, thus affecting normal production. Summary of the Invention

[0003] The purpose of this utility model is to address the problems in the related technologies by proposing a novel filtration device to overcome the aforementioned technical problems existing in the prior art.

[0004] The technical solution of this utility model is as follows: This utility model includes a filter box, an inlet pipe, a filter screen, and an outlet pipe. It is characterized by further including a cover, a water tank, a waste discharge pipe, and a sloping partition frame. The water tank is fixedly installed on the outer edge of the upper end of the filter box, and the cover is movably installed on the water tank. The waste discharge pipe is located at the upper end of the filter box. The sloping partition frame is sealed and welded to the bottom of the filter box, and an opening is provided at the sloping part of the partition frame. The filter screen is detachably installed at the opening. The outlet of the inlet pipe faces downwards and is located below the higher part of the sloping partition frame. The outlet pipe is located at the bottom of the filter box and placed inside the cavity of the sloping partition frame.

[0005] This invention employs a high-inlet, low-outlet liquid inlet design. The filter screen is detachably installed on the slope of the ramp-type partition frame. This design increases the filter screen area under limited conditions and facilitates the replacement of filters with different filtration precisions. Due to the volatile nature of the extractant, filling the water tank with water and placing the lid inside effectively prevents the extractant from evaporating into the room. However, since the gaseous state of the extractant after evaporation can increase the pressure inside the filter chamber, the evaporated gaseous extractant will still escape from the water tank. Therefore, a waste discharge pipe is installed at the top of the filter chamber, connected to a dedicated recovery device, further ensuring the reliability of the water seal. The liquid outlet of the inlet pipe faces downwards, effectively reducing the impact of liquid flow.

[0006] During normal production, liquid enters the filter chamber through the inlet pipe, and the liquid level slowly rises to the upper edge of the sloping baffle frame. It then overflows down the slope of the baffle frame. As it flows through the filter screen, waste fibers and impurities remain on the screen. The filtered liquid flows into the cavity of the sloping baffle frame and then flows away through the outlet pipe. The waste fibers and impurities remaining on the filter screen are pushed down by the continuously overflowing liquid and accumulate in the corners of the filter chamber. Operators can open the cover at any time for cleaning without affecting normal production.

[0007] The advantages of this invention are: simple structure, easy maintenance, and greatly improved filtration efficiency. Attached Figure Description

[0008] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0009] Figure 1 : A schematic diagram of the structure of this utility model;

[0010] Figure 2 : Figure 1 AA section view;

[0011] In the diagram: 1. Filter box, 2. Inlet pipe, 3. Box cover, 4. Water tank, 5. Waste pipe, 6. Filter screen, 7. Outlet pipe, 8. Sloping partition frame. Detailed Implementation

[0012] like Figures 1 to 2 As shown, this utility model includes a filter box 1, an inlet pipe 2, a filter screen 6, and an outlet pipe 7. It is characterized by further including a box cover 3, a water tank 4, a waste discharge pipe 5, and a ramp-type partition frame 8. The water tank 4 is fixedly installed on the outer edge of the upper end of the filter box 1, and the box cover 3 is movably installed on the water tank 4. The waste discharge pipe 5 is set at the upper end of the filter box 1. The ramp-type partition frame 8 is sealed and welded to the bottom of the filter box 1. An opening is provided at the ramp of the ramp-type partition frame 8, and the filter screen 6 is detachably installed at the opening. The outlet of the inlet pipe 2 faces downward and is located on the lower side of the high position of the ramp-type partition frame (8). The outlet pipe 7 is set at the bottom of the filter box 1 and placed in the cavity of the ramp-type partition frame 8.

[0013] This utility model adopts a high-inlet, low-outlet liquid inlet design. The filter screen 6 is detachably installed on the slope of the inclined partition frame 8. This method can increase the area of ​​the filter screen 6 under limited conditions and also facilitates the replacement of filter screens 6 with different filtration precisions. Due to the volatile nature of the extractant, filling the water tank 4 with water and then placing the lid 3 inside the water tank 4 can effectively prevent the extractant from evaporating into the room. However, since the extractant becomes gaseous after evaporation, it will cause the pressure inside the filter box 1 to increase, and the evaporated gaseous extractant will still escape from the water in the water tank 4. Therefore, a waste discharge pipe 5 is also provided at the upper end of the filter box 1. The waste discharge pipe 5 is connected to a special recovery device, which further ensures the reliability of the water seal. The liquid outlet of the liquid inlet pipe 2 faces downwards, which can effectively reduce the impact during liquid flow.

[0014] During normal production, liquid enters the filter chamber 1 through the inlet pipe 2. The liquid level slowly rises to the upper edge of the sloping baffle frame 8, and then overflows down the slope of the sloping baffle frame 8. When it flows through the filter screen 6, waste fibers and impurities remain on the filter screen 6. The filtered liquid flows into the cavity of the sloping baffle frame 8 and then flows away through the outlet pipe 7. The waste fibers and impurities remaining on the filter screen 6 are pushed down by the continuously overflowing liquid and then accumulate in the corner of the filter chamber 1. Operators can open the cover 3 at any time to clean them without affecting normal production.

[0015] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A novel filtration device, comprising a filter housing (1), an inlet pipe (2), a filter screen (6), and an outlet pipe (7), characterized in that... It also includes a cover (3), a water tank (4), a waste pipe (5), and a ramp-type partition frame (8). The water tank (4) is fixedly installed on the upper outer edge of the filter box (1), and the cover (3) is movably installed on the water tank (4). The waste pipe (5) is set at the upper end of the filter box (1). The ramp-type partition frame (8) is sealed and welded to the bottom of the filter box (1). An opening is provided at the ramp of the ramp-type partition frame (8), and the filter screen (6) is detachably installed at the opening. The outlet of the liquid inlet pipe (2) faces downward and is located on the lower side of the high position of the ramp-type partition frame (8). The liquid outlet pipe (7) is set at the bottom of the filter box (1) and placed inside the cavity of the ramp-type partition frame (8).

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