High-efficiency oil-water separation device for waste high-water-content hydraulic fluid in underground coal mine

Abstract

The utility model relates to the technical field of chemical exploitation and production, and discloses an efficient oil-water separation device for waste high-water-content hydraulic fluid in an underground coal mine, which comprises an adsorption box cavity, a closed interlayer is fixedly connected to the inner wall of the adsorption box cavity, and a hollow interlayer is fixedly connected to the top end of the closed interlayer. The top end of the hollow interlayer is fixedly connected with an adsorption assembly, the bottom end of the closed interlayer is fixedly connected with a water outlet connecting pipe, the bottom end of the water outlet connecting pipe is fixedly connected with a filtering assembly, the bottom end of a cavity of the adsorption box is fixedly connected with a driving motor, and the driving end of the driving motor is fixedly connected with a stirring assembly. A pressing plate is arranged on the inner wall of the top end of the adsorption box cavity. According to the utility model, a large amount of oil can be quickly adsorbed, the oil removal rate of 95%-97% is achieved, the chemical oxygen demand is effectively reduced by 60%-70%, residual liquid in the fiber felt can be extruded and adsorbed in time, and the screen frame is flexible in design, convenient to lay and easy to disassemble and replace.

Description

TECHNICAL FIELD

[0001] The utility model relates to chemical exploitation production technical field especially relates to a kind of coal mine underground abandoned high water content hydraulic fluid high-efficiency oil-water separation device. BACKGROUND

[0002] In the production operation of coal mine, hydraulic system plays a vital role, and key equipment such as hydraulic support, coal mining machine and heading machine relies on hydraulic system to realize various actions, such as lifting and moving of support, swing of cutting head of coal mining machine and heading machine, and high water content hydraulic fluid as working medium of hydraulic system undertakes important functions such as energy transmission, lubrication, cooling, corrosion and rust prevention and sealing. Due to the poor working environment of coal mine, the hydraulic system is in a humid and dusty condition for a long time, and the high water content hydraulic fluid is easily contaminated. At the same time, with the long-time operation of the equipment, the hydraulic fluid will gradually age and deteriorate, resulting in performance degradation. In order to ensure the normal operation of the hydraulic system and the service life of the equipment, the hydraulic fluid needs to be replaced regularly, thus a large amount of abandoned high water content hydraulic fluid is generated. At present, coal mine has not generally taken effective treatment measures for the recovered abandoned high water content hydraulic fluid, and the existing oil-water separation methods mainly include gravity separation method, centrifugal separation method, coagulation sedimentation method and filtration separation method. However, for the stable dispersion system of high water content hydraulic fluid, these treatment methods have limitations such as low separation efficiency, large occupied area, high energy consumption, strict control conditions and narrow application range.

[0003] After searching, the method and device for separating emulsified oil in water of patent number CN118387978A are the closest prior art of the present patent application, which has reference value. The patent invents a method for realizing demulsification and oil-water separation by using oil droplets in mixed liquid to collide and adhere to mixed fiber, and moving along the fiber under the action of fluid drag force, and proposes a horizontal pressure vessel for regenerating the oil droplets in mixed liquid by adsorption and interception using coalescence module. However, the device has high requirements for the winding method of fiber bundle, and needs to set another separator for regeneration and recovery, and is affected by hydraulic conditions such as flow rate. In addition, the method and device are suitable for emulsified oil wastewater with high oil content, and the oil removal rate is only 70% to 90%. The present application proposes a stable dispersion system of abandoned high water content hydraulic fluid in coal mine, which uses activated carbon adsorption fiber felt as core adsorption material, has non-polar material adsorption capacity, process regeneration capacity and convenient use, and the storage type water inlet is not affected by hydraulic conditions such as flow rate. The stirring power design accelerates the full contact between oil in high water content hydraulic fluid and activated carbon adsorption felt, greatly improves the treatment efficiency, and the detachable mesh frame structure facilitates the recovery and regeneration of activated carbon adsorption felt. Based on this, the utility model designs a kind of coal mine underground abandoned high water content hydraulic fluid high-efficiency oil-water separation device.

[0004] However, the above-mentioned prior art method can be specific to high water content hydraulic fluid from different angles, but the device is complex, the floor area is large, and the separation effect is poor. Utility model content

[0005] The utility model discloses a kind of devices for efficient oil-water separation of coal mine underground abandoned high water content hydraulic fluid, which can quickly absorb a large amount of oil, has the characteristics of high oil removal rate, effectively reduces chemical oxygen demand, and can also squeeze out residual liquid inside the adsorbing fiber felt in time, with flexible net frame design, easy to lay, easy to disassemble and replace.

[0006] To achieve the above object, the utility model provides the following technical scheme:

[0007] A kind of device for efficient oil-water separation of coal mine underground abandoned high water content hydraulic fluid, including adsorption box cavity, the adsorption box cavity inner wall is fixedly connected with closed partition, the closed partition top is fixedly connected with openwork partition, the openwork partition top is fixedly connected with adsorption assembly, the closed partition bottom is fixedly connected with water outlet connecting pipe, the water outlet connecting pipe bottom is fixedly connected with filter assembly, the adsorption box cavity bottom is fixedly connected with drive motor, the drive motor drive end is fixedly connected with stirring assembly, the adsorption box cavity top inner wall is provided with pressing plate.

[0008] Further, the adsorption assembly includes an adsorption net frame fixedly connected to the top end of the openwork partition, the inner wall of the adsorption net frame is provided with a plurality of screens, and the top end of each screen is provided with activated carbon adsorbing fiber felt.

[0009] Further, the filter assembly includes a filter tank fixedly connected to the bottom end of the water outlet connecting pipe and penetrating through, and the outer wall of the filter tank is fixedly connected with a water outlet pipe and penetrating through.

[0010] Further, the inner wall of the filter tank is provided with a plurality of filter sheets, and the outer wall of the front end of the filter tank is rotatably connected with a door.

[0011] Further, the outer wall of the water outlet connecting pipe is provided with a valve.

[0012] Further, the stirring assembly includes a connecting rod fixedly connected to the drive end of the drive motor, the top end of the connecting rod is fixedly connected with a stirring cross bar, and the outer wall of the stirring cross bar is rotatably connected to the inner wall of the closed partition.

[0013] Further, the outer wall of the adsorption box cavity is fixedly connected with a water inlet pipe and penetrating through, and the bottom end of the water inlet pipe is fixedly connected with a support frame on four sides.

[0014] The utility model has the advantages of the following:

[0015] In the utility model, the active carbon adsorption fiber felt can quickly adsorb a large amount of oil, and the oil removal rate reaches 95% to 97%, and the chemical oxygen demand is effectively reduced by 60% to 70%; the multi-medium filter tank can effectively intercept the active carbon felt fiber and other impurities falling off in the adsorption process, ensure the full contact of the active carbon adsorption fiber felt with the liquid, and the residual liquid in the active carbon adsorption fiber felt can be squeezed out in time by the upper pressing plate, and the net frame is designed flexibly, is convenient to lay, and is easy to disassemble and replace. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 A perspective view of a coal mine underground abandoned high water content hydraulic fluid efficient oil-water separation device is provided in the utility model;

[0017] Figure 2 A half-section view of an adsorption tank cavity of the coal mine underground abandoned high water content hydraulic fluid efficient oil-water separation device is provided in the utility model;

[0018] Figure 3 A half-section view of an adsorption net frame of the coal mine underground abandoned high water content hydraulic fluid efficient oil-water separation device is provided in the utility model;

[0019] Figure 4 A half-section view of a closed partition layer of the coal mine underground abandoned high water content hydraulic fluid efficient oil-water separation device is provided in the utility model;

[0020] Figure 5 A half-section view of a filter tank of the coal mine underground abandoned high water content hydraulic fluid efficient oil-water separation device is provided in the utility model.

[0021] LEGEND:

[0022] 1, water inlet pipe; 2, adsorption tank cavity; 3, hollow partition layer; 4, closed partition layer; 5, stirring horizontal rod; 6, connecting rod; 7, driving motor; 8, adsorption net frame; 9, screen; 10, active carbon adsorption fiber felt; 11, pressing plate; 12, valve; 13, water outlet connecting pipe; 14, filter tank; 15, water outlet pipe; 16, support frame; 17, opening and closing door. DETAILED DESCRIPTION

[0023] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0024] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application. Figures 1-3 The present application provides an embodiment: a device for efficient oil-water separation of abandoned high-water-content hydraulic fluid in a coal mine underground, comprising an adsorption box cavity 2, the inner wall of the adsorption box cavity 2 is fixedly connected with a closed partition layer 4, the top end of the closed partition layer 4 is fixedly connected with a hollow partition layer 3, the top end of the hollow partition layer 3 is fixedly connected with an adsorption net frame 8, the inner wall of the adsorption net frame 8 is provided with a plurality of screen meshes 9, the top end of each screen mesh 9 is provided with an activated carbon adsorption fiber felt 10, the outer wall of the adsorption box cavity 2 is fixedly connected with a water inlet pipe 1 and penetrates through, and the bottom end of the water inlet pipe 1 is fixedly connected with a support frame 16 on four sides.

[0025] Specifically, the top left side of the adsorption box cavity 2 is provided with a water inlet pipe 1 for conveying abandoned high-water-content hydraulic fluid into the adsorption box cavity, a hollow partition layer 3 is arranged at 1 / 5 of the lower part of the cavity, the edge thereof is tightly connected with the inner wall of the cavity, and a fine groove is arranged at a distance of 1 cm from the edge, the groove is matched with the bottom edge of the adsorption net frame 8 to ensure stable installation of the net frame 8, the inside of the adsorption net frame 8 is filled with adsorption fiber felt and screen mesh 10 for adsorbing and filtering oil substances in the liquid, a closed partition layer 4 is arranged between the hollow partition layer 3 and the bottom layer of the cavity, the diameter of the closed partition layer 4 is slightly smaller than that of the hollow partition layer 3, the filtering gap is between 80-100 meshes, and the edges of the two are connected through an inwardly convex arc structure to enhance the stability and sealing performance of the structure. A stirring cross rod 5 is installed between the hollow partition layer 3 and the closed partition layer 4, the stirring cross rod 5 is connected with a driving motor 7 located at the bottom of the cavity through a connecting rod 6, the rotation of the driving motor 7 drives the stirring cross rod 5 to stir the liquid to improve the oil-water separation efficiency, the connecting perforations in the closed partition layer 4 are sealed with sealing materials to prevent liquid leakage, a water outlet pipe 13 with a valve 12 is arranged at the left edge of the closed partition layer 4, the outlet of the water outlet pipe 13 penetrates into a filter tank 14, the inside of the filter tank 14 is provided with a multi-medium filter layer for further filtering the separated liquid, a whole-process water outlet 15 is arranged at the right outer bottom end of the filter tank 14, the liquid filtered through the multi-medium filter is finally discharged through the water outlet pipe 15, and the whole oil-water separation process is completed.

[0026] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application. Figure 5The bottom end of the closed partition layer 4 is fixedly connected with a water outlet connecting pipe 13, the bottom end of the water outlet connecting pipe 13 is fixedly connected with a filter tank 14 and penetrates through, the outer wall of the filter tank 14 is fixedly connected with a water outlet pipe 15 and penetrates through, the inner wall of the filter tank 14 is provided with a plurality of filter sheets, the outer wall of the front end of the filter tank 14 is rotatably connected with an opening and closing door 17, and the outer wall of the water outlet connecting pipe 13 is provided with a valve 12.

[0027] Specifically: the adsorption net frame 8 is stably fixed by tightly fitting with the fine grooves arranged on the hollow partition plate 3 through the bottom edge thereof; the inside of the net frame 8 adopts a layered filling structure, the bottom layer is paved with a layer of screen mesh 9 for preliminarily filtering larger particle impurities in the liquid, and then a layer of activated carbon adsorption fiber felt 10 is paved on the screen mesh 9 for efficiently adsorbing oil substances in the liquid by using the high adsorption performance thereof; according to the alternating paving mode of the screen mesh 9 and the activated carbon adsorption fiber felt 10, a total of 20 layers of screen mesh 9 and activated carbon adsorption fiber felt 10 are paved in the net frame 8 to maximize the oil-water separation effect; the top of the net frame 8 is provided with a pressing plate 11, the pressing plate 11 applies pressure by a mechanical or hydraulic device to ensure that the residual liquid adsorbed in the activated carbon adsorption fiber felt 10 can be pressed out in time, thereby improving the separation efficiency and reducing resource waste.

[0028] With reference to Figure 4 The bottom end of the adsorption box cavity 2 is fixedly connected with a driving motor 7, the driving end of the driving motor 7 is fixedly connected with a connecting rod 6, the top end of the connecting rod 6 is fixedly connected with an agitating cross rod 5, the outer wall of the agitating cross rod 5 is rotatably connected to the inner wall of the closed partition layer 4, and the top end inner wall of the adsorption box cavity 2 is provided with a pressing plate 11.

[0029] Specifically: when the high-water-content hydraulic liquid enters the adsorption box cavity 2 through the water inlet pipe 1, it first flows through the adsorption net frame 8 and is filtered layer by layer by the screen mesh 9 and the activated carbon adsorption fiber felt 10 paved inside, the screen mesh 9 intercepts larger particle impurities in the liquid, and the activated carbon adsorption fiber felt 10 efficiently adsorbs oil substances; then, the driving motor 7 is started to drive the agitating cross rod 5 to continuously agitate the liquid in the closed partition layer 4 through the connecting rod 6, the agitating time is about half an hour to ensure that the high-water-content hydraulic liquid is in full contact with the activated carbon adsorption fiber felt 10, thereby maximizing the oil adsorption efficiency; after the adsorption is completed, the driving motor 7 is turned off, the water outlet valve 12 is opened, the high-water-content hydraulic liquid treated by adsorption is made to enter the filter tank 14 through the water outlet pipe 13, multi-medium filtration is performed in the filter tank 14, and finally the high-water-content hydraulic liquid is discharged from the water outlet pipe 15, thereby completing the whole oil-water separation process; the filter tank 14 is provided with an opening and closing door 17, the inner cavity of the filter tank 14 in the stopped working state is exposed by magnetic adsorption, and the filter sheets in the filter tank 14 are replaced to maintain the filtering effect.

[0030] Working principle: in the working process, the adsorption net frame 8 is fixed in the fine groove on the hollow partition 3, the high water content hydraulic liquid enters the adsorption box cavity 2 through the water inlet pipe 1, the liquid amount is about 50L, the adsorption net frame 8 filters the high water content hydraulic liquid entering through the screen 9 and the activated carbon adsorption fiber felt 10, the driving motor 7 is started to drive the connecting rod 6 to make the stirring horizontal rod 5 continuously stir in the closed partition 4 for about half an hour, so that the high water content hydraulic liquid fully contacts the activated carbon adsorption fiber felt 10 and completes oil adsorption, after adsorption, the driving motor 7 is closed, the water outlet valve 12 is opened, the adsorbed high water content hydraulic liquid enters the filter tank 14, and is discharged by the water outlet pipe 15 after gravity filtration, in order to ensure that the residual liquid in the adsorption felt is completely discharged, the pressing plate 11 presses the activated carbon adsorption fiber felt 10 downward during the process, the pressing plate 11 can be opened to take out and replace the activated carbon adsorption fiber felt 10 from the adsorption net frame 8 after 3 times of repeated use.

[0031] Finally, it should be pointed out that: the above only for the preferred embodiments of the utility model, and does not limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features, any modification, equivalent replacement, improvement etc. made within the spirit and principles of the utility model, should be included in the protection scope of the utility model.

Claims

1. A device for efficient oil-water separation of coal mine underground abandoned high water content hydraulic fluid, comprising an adsorption box cavity (2), characterized in that: The inner wall of the adsorption box cavity (2) is fixedly connected with a closed partition layer (4), the top end of the closed partition layer (4) is fixedly connected with a hollow partition layer (3), the top end of the hollow partition layer (3) is fixedly connected with an adsorption assembly, the bottom end of the closed partition layer (4) is fixedly connected with a water outlet connecting pipe (13), the bottom end of the water outlet connecting pipe (13) is fixedly connected with a filter assembly, the bottom end of the adsorption box cavity (2) is fixedly connected with a driving motor (7), the driving end of the driving motor (7) is fixedly connected with a stirring assembly, and the top end inner wall of the adsorption box cavity (2) is provided with a pressing plate (11).

2. The device for efficient oil-water separation of coal mine underground abandoned high water content hydraulic fluid according to claim 1, characterized in that: The adsorption assembly comprises an adsorption mesh frame (8) fixedly connected to the top end of the hollow partition layer (3), the inner wall of the adsorption mesh frame (8) is provided with a plurality of screens (9), and the top end of each screen (9) is provided with an activated carbon adsorption fiber felt (10).

3. The device for efficient oil-water separation of coal mine underground abandoned high water content hydraulic fluid according to claim 1, characterized in that: The filter assembly comprises a filter tank (14) fixedly connected to the bottom end of the water outlet connecting pipe (13) and penetrating through, the top end of the filter tank (14) is fixedly connected to the bottom end of the adsorption box cavity (2), and the outer wall of the filter tank (14) is fixedly connected with a water outlet pipe (15) and penetrates through.

4. The device for efficient oil-water separation of coal mine underground abandoned high water cut hydraulic fluid according to claim 3, characterized in that: The inner wall of the filter tank (14) is provided with a plurality of filter sheets, and the outer wall of the front end of the filter tank (14) is rotatably connected with an opening and closing door (17).

5. The device for efficient oil-water separation of coal mine underground waste high water content hydraulic fluid according to claim 1, characterized in that: The outer wall of the water outlet connecting pipe (13) is provided with a valve (12).

6. The device for efficient oil-water separation of coal mine underground waste high water content hydraulic fluid according to claim 1, characterized in that: The stirring assembly comprises a connecting rod (6) fixedly connected to the driving end of the driving motor (7), the top end of the connecting rod (6) is fixedly connected with a stirring cross rod (5), and the outer wall of the stirring cross rod (5) is rotatably connected to the inner wall of the closed partition layer (4).

7. The device for efficient oil-water separation of coal mine underground waste high water content hydraulic fluid according to claim 1, characterized in that: The outer wall of the adsorption box cavity (2) is fixedly connected with a water inlet pipe (1) and penetrates through, and the bottom end of the water inlet pipe (1) is fixedly connected with a support frame (16) on four sides.

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