A residual liquid filtration and recovery device

Abstract

This invention proposes a residual liquid filtration and recovery device, relating to the field of filtration equipment technology. The residual liquid filtration and recovery device includes a first mounting pipe and a filter support disposed on the inner sidewall of the first mounting pipe, with a filter assembly sleeved on the filter support; one end of the filter support has a mounting ring, the outer diameter of which is larger than the diameter of the filter assembly, and the outer sidewall of the mounting ring abuts against the inner sidewall of the first mounting pipe. Using this invention, secondary treatment of emulsions is achieved through connection with a backwash filter, which is more environmentally friendly and structurally simpler. The detachable connection to the backwash filter facilitates replacement and enhances practicality.

Description

Technical Field

[0001] This invention relates to the field of filtration equipment technology, and more specifically, to a residual liquid filtration and recovery device. Background Technology

[0002] Currently, in underground coal mines, the emulsion treated by the hydraulic support backwash filter contains pollutants such as fine particles. Direct discharge would cause environmental pollution, so it needs to be filtered twice before being recycled.

[0003] Chinese patent publication CN104069673B discloses a "backwashing dual filter," specifically comprising a first filter and a second filter. The first filter is divided into an outer cavity I and an inner cavity I by a filter screen I. One side of the first filter has a first liquid collection chamber connected to the outer cavity I, and the other side has a second liquid collection chamber connected to the outer cavity I. The first liquid collection chamber has a first inlet connected to the system inlet pipe I, and the second liquid collection chamber has a first outlet connected to the backwash outlet pipe I. The outer side of the first liquid collection chamber also has a first connector connected to the inner cavity I, with the extended end of the first connector being a second inlet connected to the backwash inlet pipe I. The outer side of the second liquid collection chamber has a second connector connected to the inner cavity I, with the extended end of the second connector being a second outlet connected to the system outlet pipe I. Although the patent allows for secondary treatment of emulsions, the structure is more complex because it integrates the secondary filtration of emulsions with the backwash filter, making it difficult to replace them separately. Summary of the Invention

[0004] The purpose of this invention is to provide a residual liquid filtration and recovery device, which performs secondary treatment of emulsion by connecting to a backwash filter. This device is more environmentally friendly and has a simpler structure. It is also more practical because it is detachably connected to the backwash filter and easy to replace.

[0005] The embodiments of the present invention are implemented as follows:

[0006] This application provides a residual liquid filtration and recovery device, including a first mounting tube and a filter bracket disposed on the inner side wall of the first mounting tube. The filter bracket is fitted with a filter assembly. One end of the filter bracket is provided with a mounting ring, the outer diameter of which is larger than the diameter of the filter assembly, and the outer side wall of the mounting ring abuts against the inner side wall of the first mounting tube.

[0007] Furthermore, in some embodiments of the present invention, the above-mentioned filtering assembly includes a multi-layer filter screen.

[0008] Furthermore, in some embodiments of the present invention, the end of the first mounting tube away from the mounting ring is a mounting portion, and the mounting portion is provided with an annular first receiving groove and a first sealing ring disposed in the first receiving groove along its outer side wall.

[0009] Furthermore, in some embodiments of the present invention, the outer wall of the mounting portion is provided with an annular snap-fit ​​groove for inserting a U-shaped connector.

[0010] Furthermore, in some embodiments of the present invention, the inner wall of the first mounting tube is provided with a first limiting tube, and one end of the mounting ring abuts against the first limiting tube.

[0011] Furthermore, in some embodiments of the present invention, a second mounting tube is also included, wherein the second mounting tube is provided with an external thread, the first mounting tube is provided with an internal thread, the first mounting tube is threadedly connected to the second mounting tube, and the second mounting tube abuts against the end of the mounting ring away from the first limiting tube.

[0012] Furthermore, in some embodiments of the present invention, the second mounting tube is provided with a one-way valve movably along its inner wall, and the end of the one-way valve away from the mounting ring is a tapered portion; the second mounting tube is provided with a second limiting tube along its inner wall, and one end of the tapered portion is embedded in the second limiting tube; the end of the one-way valve near the mounting ring is provided with a chamber communicating with the interior of the second mounting tube, and the tapered portion is provided with a plurality of through holes evenly spaced along its circumference communicating with the chamber.

[0013] Furthermore, in some embodiments of the present invention, an elastic element located in the aforementioned chamber is also included, the second mounting tube is provided with a mounting block along its inner wall, one end of the elastic element is fixedly connected to the mounting block, and the other end of the elastic element abuts against the one-way valve.

[0014] Furthermore, in some embodiments of the present invention, the second mounting tube is provided with an annular second receiving groove and a second sealing ring disposed in the second receiving groove along its outer side wall, and the outer side wall of the second sealing ring abuts against the inner side wall of the first mounting tube.

[0015] Furthermore, in some embodiments of the present invention, the second mounting tube is provided with two connecting holes along its radial direction for inserting the U-shaped connector.

[0016] Compared with the prior art, the embodiments of the present invention have at least the following advantages or beneficial effects:

[0017] This application provides a residual liquid filtration and recovery device, including a first mounting tube and a filter bracket disposed on the inner side wall of the first mounting tube. The filter bracket is fitted with a filter assembly. One end of the filter bracket is provided with a mounting ring, the outer diameter of which is larger than the diameter of the filter assembly, and the outer side wall of the mounting ring abuts against the inner side wall of the first mounting tube.

[0018] In practical use, the end of the first mounting pipe closest to the mounting ring needs to be connected to the backwash filter. This allows the emulsion, filtered by the backwash filter, to be passed into the filter assembly within the first mounting pipe. The filter assembly traps fine particles and other impurities, making the emulsion more environmentally friendly after secondary filtration. Because the outer diameter of the mounting ring is larger than the diameter of the filter assembly, a gap is formed between the filter assembly and the inner wall of the first mounting pipe, allowing the emulsion to flow from the filter assembly into the first mounting pipe. Simultaneously, the end of the first mounting pipe furthest from the mounting ring needs to be connected to the main return pipe, allowing the emulsion in the first mounting pipe to enter the main return pipe for recycling. This reduces waste from emulsion discharge and environmental pollution, making it more environmentally friendly. Furthermore, this residual liquid recovery device can be removed from the backwash filter and the main return pipe, facilitating cleaning or replacement of the filter assembly and improving overall practicality. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a front view of the residual liquid filtration and recovery device provided in an embodiment of the present invention;

[0021] Figure 2 This is a cross-sectional view of the residual liquid filtration and recovery device provided in an embodiment of the present invention;

[0022] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0023] Figure 4 This is a schematic diagram of the structure of the filter support provided in an embodiment of the present invention;

[0024] Figure 5 This is a schematic diagram of the structure of the U-shaped connector provided in an embodiment of the present invention.

[0025] Icons: 1-First mounting tube, 2-Filter bracket, 3-Mounting ring, 4-Filter screen, 5-Mounting part, 6-First receiving groove, 7-First sealing ring, 8-Annular snap groove, 9-First limiting tube, 10-Second mounting tube, 11-One-way valve, 12-Conical part, 13-Second limiting tube, 14-Cavity, 15-Through hole, 16-Elastic element, 17-Mounting block, 18-Adsorption layer, 19-Second sealing ring, 20-Connecting hole, 21-U-shaped connector. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0028] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0029] In the description of the embodiments of the present invention, it should be noted that if terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," or "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of the invention is in use, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Furthermore, if terms such as "first," "second," or "third" appear, they are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0030] Furthermore, the use of terms such as "horizontal," "vertical," and "sag" does not imply that the component must be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0031] In the description of the embodiments of the present invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of these terms in the present invention according to the specific circumstances.

[0032] Example 1

[0033] Please refer to Figures 1-5 This application provides a residual liquid filtration and recovery device, including a first mounting pipe 1 and a filter bracket 2 disposed on the inner side wall of the first mounting pipe 1. The filter bracket 2 is fitted with a filter assembly. One end of the filter bracket 2 is provided with a mounting ring 3. The outer diameter of the mounting ring 3 is larger than the diameter of the filter assembly. The outer side wall of the mounting ring 3 abuts against the inner side wall of the first mounting pipe 1.

[0034] In practical use, the end of the first mounting pipe 1 closest to the mounting ring 3 needs to be connected to the backwash filter. This allows the emulsion filtered by the backwash filter to be passed into the filter assembly in the first mounting pipe 1. The filter assembly traps fine particles and other impurities in the emulsion, making the emulsion more environmentally friendly after secondary filtration. Because the outer diameter of the mounting ring 3 is larger than the diameter of the filter assembly, a gap is formed between the filter assembly and the inner wall of the first mounting pipe 1, allowing the emulsion after secondary filtration to flow out of the filter assembly and into the first mounting pipe 1. Simultaneously, the end of the first mounting pipe 1 furthest from the mounting ring 3 needs to be connected to the main return pipe, allowing the emulsion in the first mounting pipe 1 to enter the main return pipe for recycling. This reduces waste from emulsion discharge and environmental pollution, making it more environmentally friendly. Furthermore, this residual liquid recovery device can be removed from the backwash filter and the main return pipe, facilitating cleaning or replacement of the filter assembly and improving overall practicality.

[0035] Optionally, the first mounting tube 1 in this embodiment may be made of stainless steel.

[0036] Optionally, the filter holder 2 in this embodiment may be made of stainless steel.

[0037] Example 2

[0038] Please refer to Figures 1-5 In some embodiments of the present invention, the above-mentioned filtering assembly includes a multi-layer filter screen 4.

[0039] By setting multiple layers of filter screens 4 on the filter support 2, the emulsion can be filtered layer by layer through the multiple layers of filter screens 4, resulting in a better filtration effect. This makes the emulsion after secondary filtration more environmentally friendly and more practical.

[0040] Optionally, the filter 4 in this embodiment can be made of three layers of stainless steel, achieving a filtration accuracy of 80µm, thereby improving the filtration effect. Alternatively, an adsorption layer 18 made of activated carbon can be placed between the first and second filter layers 4 from the inside out, thereby adsorbing odors and making it more environmentally friendly.

[0041] Example 3

[0042] Please refer to Figures 1-5 In some embodiments of the present invention, the end of the first mounting tube 1 away from the mounting ring 3 is a mounting part 5, and the mounting part 5 is provided with an annular first receiving groove 6 and a first sealing ring 7 provided in the first receiving groove 6 along its outer side wall.

[0043] By connecting the mounting part 5 to the main return pipe, the connection between the first mounting pipe 1 and the main return pipe is completed. The structure is relatively simple and easier to install. Moreover, by embedding the first sealing ring 7 into the first receiving groove 6 and then connecting the mounting part 5 to the main return pipe, the main return pipe and the first sealing ring 7 can be brought into contact, resulting in a tighter connection between the main return pipe and the mounting part 5. This better prevents emulsion leakage and is more environmentally friendly.

[0044] Optionally, the first sealing ring 7 in this embodiment can be made of rubber material. Rubber material has good elasticity, which allows the first sealing ring 7 to be pressed tightly when the main return pipe is connected to the mounting part 5, resulting in better sealing.

[0045] Example 4

[0046] Please refer to Figures 1-5 In some embodiments of the present invention, the outer wall of the mounting portion 5 is provided with an annular snap-fit ​​groove 8 for inserting the U-shaped connector 21.

[0047] In actual use, the mounting part 5 needs to be inserted into the main return pipe, ensuring the insertion hole on the main return pipe aligns with the annular retaining groove 8. Then, the U-shaped connector 21 is inserted from the insertion hole on the main return pipe into the annular retaining groove 8. This further stabilizes the connection between the main return pipe and the mounting part 5, better preventing the mounting part 5 from detaching from the main return pipe. When cleaning or replacing this residual liquid filtration and recovery device, simply pull the U-shaped connector 21 out of the annular retaining groove to remove it. This design simplifies the structure, makes operation convenient, and improves overall practicality.

[0048] Example 5

[0049] Please refer to Figures 1-5 In some embodiments of the present invention, the inner wall of the first mounting tube 1 is provided with a first limiting tube 9, and one end of the mounting ring 3 abuts against the first limiting tube 9.

[0050] By setting the first limiting tube 9, the mounting ring 3 can be limited to prevent the filter support 2 from entering the first mounting tube 1 too deeply, causing the end of the filter support 2 to block the opening of the first mounting tube 1. This ensures that the emulsion flows smoothly out of the first mounting tube 1 and into the main return pipe after secondary filtration. Moreover, the structure is very simple, easy to manufacture, and more convenient and practical.

[0051] Optionally, the first limiting tube 9 in this embodiment may be made of stainless steel.

[0052] Example 6

[0053] Please refer to Figures 1-5 In some embodiments of the present invention, a second mounting tube 10 is also included. The second mounting tube 10 is provided with an external thread, and the first mounting tube 1 is provided with an internal thread. The first mounting tube 1 and the second mounting tube 10 are threadedly connected, and the second mounting tube 10 abuts against the end of the mounting ring 3 away from the first limiting tube 9.

[0054] In actual use, simply insert the second mounting tube 10 into the opening of the first mounting tube 1, and then rotate the second mounting tube 10 to allow it to enter the first mounting tube 1 and abut against the mounting ring 3. This prevents the filter support 2 from loosening in the first mounting tube 1. Then, connect the end of the second mounting tube 10 away from the mounting ring 3 to the backwash filter to allow the emulsion to flow in, which is more conducive to the secondary filtration of the emulsion. When it is necessary to clean or replace the filter assembly, simply rotate the second mounting tube 10 to remove it from the first mounting tube 1, making it easy to remove the filter assembly from the first mounting tube 1. This threaded connection method for installing the first mounting tube 1 and the second mounting tube 10 is relatively simple in structure, easy to install and disassemble, and more practical.

[0055] Optionally, the second mounting tube 10 in this embodiment may be made of stainless steel.

[0056] Example 7

[0057] Please refer to Figures 1-5In some embodiments of the present invention, the second mounting tube 10 is provided with a one-way valve 11 movably along its inner wall, and the end of the one-way valve 11 away from the mounting ring 3 is a tapered portion 12; the second mounting tube 10 is provided with a second limiting tube 13 along its inner wall, and one end of the tapered portion 12 is embedded in the second limiting tube 13; the end of the one-way valve 11 near the mounting ring 3 is provided with a chamber 14 communicating with the interior of the second mounting tube 10, and the tapered portion 12 is provided with a plurality of through holes 15 evenly spaced along its circumference, communicating with the chamber 14.

[0058] In practical use, by setting up a one-way valve 11, the liquid pressure pushes the one-way valve 11 towards the mounting ring 3 after the emulsion enters from the second mounting pipe 10, exposing the port of the second limiting pipe 13. This allows the emulsion to pass sequentially through the port of the second limiting pipe 13 and the through-hole 15, entering the chamber 14 of the one-way valve 11 and flowing into the second mounting pipe 10. When the emulsion in the second mounting pipe 10 flows towards the conical part 12, it pushes the one-way valve 11 to block the port of the second limiting pipe 13, preventing backflow and ensuring filtration efficiency, thus enhancing practicality. Furthermore, by setting multiple through-holes 15, the inflow area of ​​the emulsion can be increased, thereby increasing the inflow rate and improving the filtration efficiency of this residual liquid filtration and recovery device, making it more convenient and practical.

[0059] Optionally, the one-way valve 11 in this embodiment may be made of stainless steel.

[0060] Example 8

[0061] Please refer to Figures 1-5 In some embodiments of the present invention, an elastic element 16 located in the above-mentioned chamber 14 is also included. The second mounting tube 10 is provided with a mounting block 17 along its inner sidewall. One end of the elastic element 16 is fixedly connected to the mounting block 17, and the other end of the elastic element 16 abuts against the one-way valve 11.

[0062] By fixing one end of the elastic element 16 to the mounting block 17 and abutting the other end against the one-way valve 11, when the emulsion flows in from the port of the second limiting tube 13, the liquid pressure is transmitted to the elastic element 16 via the conical part 12, causing the elastic element 16 to contract under force, thereby driving the one-way valve 11 to move towards the mounting ring 3. This design simplifies the structure, makes operation more convenient, and improves the overall practicality.

[0063] Alternatively, the elastic element 16 in this embodiment may be a spring.

[0064] Example 9

[0065] Please refer to Figures 1-5In some embodiments of the present invention, the second mounting tube 10 is provided with an annular second receiving groove along its outer side wall and a second sealing ring 19 provided in the second receiving groove, the outer side wall of the second sealing ring 19 abutting against the inner side wall of the first mounting tube 1.

[0066] By providing a second receiving groove on the outer side wall of the second mounting tube 10 and embedding the second sealing ring 19 therein, when the second mounting tube 10 is installed onto the first mounting tube 1, the tight contact between the first mounting tube 1 and the second sealing ring 19 can improve the sealing performance of the connection between the second mounting tube 10 and the first mounting tube 1, thereby preventing emulsion leakage and making it more environmentally friendly.

[0067] Optionally, the second sealing ring 19 in this embodiment can be made of rubber material. Rubber material has good elasticity, which allows the second sealing ring 19 to be pressed tightly when the first mounting tube 1 is connected to the second mounting tube 10, resulting in better sealing.

[0068] Example 10

[0069] Please refer to Figures 1-5 In some embodiments of the present invention, the second mounting tube 10 is provided with two connecting holes 20 for inserting the U-shaped connector 21 along its radial direction.

[0070] In actual use, the connector on the backwash filter needs to be connected to the second mounting tube 10, aligning the connection hole 20 with the insertion hole on the connector. The U-shaped connector 21 is then inserted from the connection hole 20 into the insertion hole, completing the connection between the second mounting tube 10 and the connector. This allows the second mounting tube 10 to connect to the backwash filter for the introduction of emulsion. When this residual liquid filtration and recovery device needs to be removed from the backwash filter, simply pull the U-shaped connector 21 out of the connection hole 20, facilitating cleaning and replacement of the device. This design is simple in structure, convenient to operate, and improves overall practicality.

[0071] In summary, the present application provides a residual liquid filtration and recovery device, including a first mounting pipe 1 and a filter support 2 disposed on the inner side wall of the first mounting pipe 1. The filter support 2 is fitted with a filter assembly. One end of the filter support 2 is provided with a mounting ring 3. The outer diameter of the mounting ring 3 is larger than the diameter of the filter assembly. The outer side wall of the mounting ring 3 abuts against the inner side wall of the first mounting pipe 1.

[0072] In practical use, the end of the first mounting pipe 1 closest to the mounting ring 3 needs to be connected to the backwash filter. This allows the emulsion filtered by the backwash filter to be passed into the filter assembly in the first mounting pipe 1. The filter assembly traps fine particles and other impurities in the emulsion, making the emulsion more environmentally friendly after secondary filtration. Because the outer diameter of the mounting ring 3 is larger than the diameter of the filter assembly, a gap is formed between the filter assembly and the inner wall of the first mounting pipe 1, allowing the emulsion after secondary filtration to flow out of the filter assembly and into the first mounting pipe 1. Simultaneously, the end of the first mounting pipe 1 furthest from the mounting ring 3 needs to be connected to the main return pipe, allowing the emulsion in the first mounting pipe 1 to enter the main return pipe for recycling. This reduces waste from emulsion discharge and environmental pollution, making it more environmentally friendly. Furthermore, this residual liquid recovery device can be removed from the backwash filter and the main return pipe, facilitating cleaning or replacement of the filter assembly and improving overall practicality.

[0073] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A residual liquid filtration and recovery device, characterized in that: The device includes a first mounting tube and a filter bracket disposed on the inner sidewall of the first mounting tube. The filter bracket is fitted with a filter assembly. One end of the filter bracket is provided with a mounting ring, the outer diameter of which is larger than the diameter of the filter assembly. The outer sidewall of the mounting ring abuts against the inner sidewall of the first mounting tube. The end of the first mounting tube away from the mounting ring is a mounting portion. The mounting portion is provided with an annular first receiving groove and a first sealing ring disposed in the first receiving groove along its outer sidewall. The inner sidewall of the first mounting tube is provided with a first limiting tube, and one end of the mounting ring abuts against the first limiting tube. It also includes a second mounting tube, which has an external thread and the first mounting tube has an internal thread. The first mounting tube is threadedly connected to the second mounting tube, and the second mounting tube abuts against the end of the mounting ring away from the first limiting tube. The second mounting tube is provided with a one-way valve along its inner wall, and the end of the one-way valve away from the mounting ring is a tapered part; the second mounting tube is provided with a second limiting tube along its inner wall, and one end of the tapered part is embedded in the second limiting tube; the end of the one-way valve near the mounting ring is provided with a chamber communicating with the inside of the second mounting tube, and the tapered part is provided with a plurality of through holes communicating with the chamber at even intervals along its circumference; It also includes an elastic element located in the chamber, and the second mounting tube has a mounting block along its inner wall. One end of the elastic element is fixedly connected to the mounting block, and the other end of the elastic element abuts against the one-way valve.

2. The residual liquid filtration and recovery device according to claim 1, characterized in that: The filtration assembly includes multiple layers of filter screens.

3. The residual liquid filtration and recovery device according to claim 1, characterized in that: The outer wall of the mounting part is provided with an annular snap-fit ​​groove for inserting a U-shaped connector.

4. The residual liquid filtration and recovery device according to claim 1, characterized in that: The second mounting tube has an annular second receiving groove and a second sealing ring disposed in the second receiving groove along its outer side wall, and the outer side wall of the second sealing ring abuts against the inner side wall of the first mounting tube.

5. The residual liquid filtration and recovery device according to claim 1, characterized in that: The second mounting tube has two connecting holes along its radial direction for inserting U-shaped connectors.

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