A fiber rope oil-water separation device

Abstract

A fiber rope oil-water separation device comprises a box body, the bottom of the box body is provided with legs, the top of the box body is provided with a cover plate; the bottom of the box body is provided with a sediment pool, and the lowest point of the sediment pool is provided with a slag discharge port; a fiber rope, an upper grid, a lower grid and a steady flow distribution plate are provided in the box body; the steady flow distribution plate is provided on one side of the inside of the box body, the upper end of the steady flow distribution plate is connected and fixed to the side wall of the box body through an upper partition plate, the lower grid is located above the sediment pool, an exciter is provided at one end of the lower grid, and the lower grid is provided with a strip hole; the grid is formed by a rectangular grid vertically bent from the middle to form a horizontal surface of the grid and a vertical surface of the grid, the two ends of the horizontal surface of the grid are fixedly connected to the top of the box body by a suspension spring, and the bottom end of the vertical surface of the grid is inserted into the strip hole; a fiber rope is arranged between the horizontal surface of the grid and the lower grid, the upper end of the fiber rope is fixed to the horizontal surface of the grid, and the lower end of the fiber rope is fixed to the lower grid. The oil-water separation efficiency is improved, the area is small, and the work is stable and efficient.

Description

Technical Field

[0001] The invention relates to a wastewater treatment device, in particular to a fiber rope oil-water separation device. Background Art

[0002] The oil-water separator is a purification device that separates oil and water from wastewater. The separation methods used are mainly gravity separation, centrifugal separation, electrical separation, adsorption separation, flotation separation, etc. Among them, the gravity oil-water separation method uses the principle of gravity sedimentation to separate oil and water based on the density difference between water and oil. The device has the advantages of simple structure, easy operation, good oil removal effect, low operation and maintenance costs, and no secondary pollution, and has been widely used. However, the simple gravity separation method can only effectively remove the larger particle size oil droplets such as floating oil and dispersed oil in oily wastewater, and has basically no effect on the removal of dissolved oil and emulsified oil. The introduction of coalescence technology has well solved its shortcomings and made it more widely used.

[0003] Coagulation technology refers to the process in which the oil droplets in the water change from small to large when the sewage flows through the coagulation material. The efficiency of gravity oil-water separation is improved by aggregating small oil droplets into large oil droplets. Commonly used coagulation methods include plate-type coagulation, filler-type coagulation and filter-type coagulation. Plate-type coagulation is the product of combining the shallow layer principle with coagulation technology. It uses a multi-layer parallel corrugated plate group, which not only provides a carrier for the oil droplets to coagulate and attach, but also shortens the floating distance of the oil droplets, thereby improving the oil removal efficiency. Filler-type coagulation refers to the process of coagulating and enlarging oil droplets by setting a coagulation layer in the shell. Filter-type coagulation is a coagulation method that uses the filter element as the coagulation element.

[0004] The key to gravity oil-water separation is the selection and structural layout of coalescence materials. The characteristics of the materials and the filling method will affect the effect of the gravity oil-water separator. At present, there are many domestic gravity oil-water separation device solutions based on coalescence, but most of them occupy a large area, have a short operating cycle, low separation efficiency, and the degree of automation needs to be improved. Summary of the invention

[0005] To solve the above problems, the present invention provides the following solutions:

[0006] A fiber rope oil-water separation device comprises a box body, the bottom surface of the box body is provided with legs, the top surface of the box body is provided with a cover plate, the bottom surface of the box body is provided with a sediment pool, and the lowest point of the sediment pool is provided with a slag discharge port; a fiber rope, an upper rack, a lower rack and a steady flow distribution plate are provided in the box body; the steady flow distribution plate is a rectangular plate, the surface of which is provided with diversion holes arranged from top to bottom, and the diameter of the diversion holes increases gradually from top to bottom; the steady flow distribution plate is provided on one side of the inside of the box body, and the upper and lower ends of the steady flow distribution plate are respectively provided with gaps with the top surface and the bottom surface of the box body, and the upper end of the steady flow distribution plate is connected to the box body. The side walls are connected and fixed by an upper partition, and the lower grid is located above the sludge pool. An exciter is provided at one end of the lower grid, and strip holes are opened in the lower grid. The grid is formed by a rectangular grid that is vertically bent from the middle to form a horizontal surface and a vertical surface of the grid. Both ends of the horizontal surface of the grid are fixedly connected to the top surface of the box by a suspension spring, and the bottom end of the vertical surface of the grid is inserted into the strip hole to ensure that the grid can move up and down. Fiber ropes are arranged between the horizontal surface of the grid and the lower grid, and the upper end of the fiber rope is fixed to the horizontal surface of the grid, and the lower end of the fiber rope is fixed to the lower grid.

[0007] Furthermore, an oil and water inlet is provided on the side wall of the box near the steady flow distribution plate, and a drain port is provided on the side wall of the box opposite to the oil and water inlet; an oil cavity is provided on the cover plate, and the oil drain port is provided on the top surface of the oil cavity; the steady flow distribution plate and the side wall of the box where the oil and water inlet are located form a steady flow domain, and the steady flow distribution plate and the area where the fiber rope is located form a separation domain.

[0008] Furthermore, the bottom surface of the box body is in an inverted cone shape to form the sedimentation pool, and the slag discharge port is arranged at the lowest point of the sedimentation pool.

[0009] Furthermore, the drain valve is located above the vibrator, and a slag separation plate is provided on the inner wall of the box between the drain valve and the vibrator.

[0010] Furthermore, the fiber rope is made of a hydrophilic and oleophobic material.

[0011] Furthermore, the cover plate is also provided with an oil-water detector, and a detection end of the oil-water detector extends into the box body.

[0012] Furthermore: the oil outlet, water outlet and slag outlet are all controlled by valves.

[0013] Furthermore, the valve is electrically connected to a control box, and the switch is controlled by the control box.

[0014] During operation, oil and water enter the separation box 18 from the oil and water inlet. Under the action of the steady flow distribution plate, the flow rate slows down. The floating oil and dispersed oil in the oil and water, which are larger oil droplets, flow into the separation domain from the small holes on the upper part of the steady flow distribution plate. The oil and water containing small particles flow into the separation domain from the lower part of the steady flow distribution plate. The solid impurities settle to the sediment pool and are discharged regularly from the slag discharge port. The oil and water entering the separation domain continuously collide with the vertically distributed fiber ropes. Due to the collision with the hydrophilic and oleophobic fiber ropes, the interface between the dispersed small-size oil particles is broken, and two or several particles are merged into one particle, which floats up under the guidance of the vertical fiber ropes, realizing efficient oil-water separation. Water is discharged from the drain port. After the oil floats up, the oil drain port is opened to drain the oil when the oil-water detector detects the oil. Since the oil cavity is located higher than the oil-water detector, the oil discharged from the oil drain port can be guaranteed to have a high purity. After running for a certain period of time, the vibrator is started to emit pulse vibration, so that the lower grid drives the fiber rope to vibrate, cleans the residue adhering to the fiber rope, and realizes the self-cleaning of the fiber rope oil-water separator.

[0015] The beneficial effects of the present invention are:

[0016] 1. Fiber rope is used for oil-water separation, with low manufacturing cost, small footprint and high processing efficiency;

[0017] 2. The vibrator vibrates the fiber rope to remove the residue attached to the fiber rope, achieving self-cleaning. The fiber rope can be used for a long time and the cost of replacing the fiber rope can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the present invention;

[0019] Figure 2 It is a left view of the present invention.

[0020] 1. Oil and water inlet; 2. Upper baffle; 3. Flow-stabilizing distribution plate; 4. Suspension spring; 5. Upper grid; 51. Horizontal surface of the grid; 52. Vertical surface of the grid; (51 and 52 are not indicated in the figure) 6. Oil drain valve; 7. Oil chamber; 8. Oil and water detector; 9. Fiber rope; 10. Slag separator; 11. Drain valve; 12. Vibrator; 13. Support leg; 14. Slag drain valve; 15. Lower grid; 16. Sludge tank; 17. Diversion hole; 18. Box; 19. Cover plate; 20. Control box. DETAILED DESCRIPTION

[0021] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0022] Example 1: Figure 1-Figure 2 As shown,

[0023] A fiber rope oil-water separation device comprises a box body 18, the bottom surface of the box body 18 is provided with a support leg 13, the top surface of the box body 18 is provided with a cover plate 19, the cover plate 19 is provided with an oil-water detector 8, and the detection end of the oil-water detector 8 extends into the box body 18. The bottom surface of the box body 18 is inverted cone-shaped to form a sediment pool 16, and the sediment pool 16 has a slag discharge port at the lowest point; the box body 18 is provided with a fiber rope 9, an upper frame 5, a lower frame 15 and a steady flow distribution plate 3; the steady flow distribution plate 3 is a rectangular plate, and the surface of the steady flow distribution plate 3 is arranged with diverter holes 17 from top to bottom, and the diameter of the diverter holes 17 gradually increases from top to bottom. The steady flow distribution plate 3 is arranged on one side of the inside of the box body 18, and the left and right ends are connected to the inner side of the box body 18, the lower end is connected to the bottom surface of the box body 18 with a certain gap, and the upper end is connected to the horizontally arranged upper partition plate 2, and the lower frame 15 is located above the sediment pool 16. The end of the net frame 15 is provided with an exciter 12, and the lower net frame 15 is provided with a strip hole; the net frame 5 is formed by a rectangular net frame vertically bent from the middle to form a net frame horizontal surface 51 and a net frame vertical surface 52, the two ends of the net frame horizontal surface 51 are fixedly connected to the cover plate 19 by the suspension spring 4, and the bottom end of the net frame vertical surface 52 is inserted into the strip hole to ensure that the net frame 5 and the lower net frame 15 can move up and down relative to each other; fiber ropes 9 are arranged between the net frame horizontal surface 51 and the lower net frame 15, and the fiber ropes 9 are made of hydrophilic and oleophobic materials, the upper end of the fiber ropes 9 are fixed to the net frame horizontal surface 51, and the lower end of the fiber ropes 9 are fixed to the lower net frame 15. The lower net frame 15 itself has a certain weight, ensuring that its own gravity can keep the fiber ropes 9 tied thereon in a straight state. The side wall of the box 18 near the steady flow distribution plate 3 is provided with an oil and water inlet 1, and the side wall of the box 18 opposite to the oil and water inlet 1 is provided with a drain port; the cover plate 19 is provided with an oil cavity 7, and the oil drain port is provided on the top surface of the oil cavity 7; the area between the steady flow distribution plate 3 and the side wall of the box 18 where the oil and water inlet 1 is located forms a steady flow domain, and the area where the steady flow distribution plate 3 and the fiber rope 9 are located forms a separation domain. The drain port is located above the vibrator 12, and a slag separation plate 10 is provided on the inner wall of the box 18 between the drain port and the vibrator 12 to prevent the slag in the sludge pool 16 from flowing out of the drain port. .

[0024] The drain outlet is provided with a drain valve 11, the slag discharge outlet is provided with a slag discharge valve 14, and the oil discharge outlet is provided with an oil discharge valve 6. The oil discharge valve 6 is controlled by an oil-water detector 8. The drain valve 11 and the slag discharge valve 14 are electrically connected to a control box 20, and the switches are controlled by the control box 20. The control box 20 is arranged outside the box body 18.

[0025] During operation, oil and water enter the box 18 from the oil and water inlet 1. Under the action of the steady flow distribution plate 3, the flow rate slows down. The floating oil and dispersed oil in the oil and water, such as large oil droplets with larger particle sizes, flow into the separation domain from the upper flow distribution hole 17 of the steady flow distribution plate 3. The oil and water with small particle sizes flow into the separation domain from the lower flow distribution hole 17 of the steady flow distribution plate 3. The solid impurities settle to the sediment pool 16 and are discharged regularly by the slag discharge valve 14. The oil and water entering the separation domain continuously collide with the vertically distributed fiber ropes 9. Due to the collision with the hydrophilic and oleophobic fiber ropes 9, the interface between the dispersed small-particle oil particles is broken, and two or several particles are merged into one particle, which floats up under the guidance of the fiber ropes 9, realizing high-efficiency oil-water separation. The water is discharged by the drain valve 11. After the oil floats up, the oil drain valve 6 is opened when the oil-water detector 8 detects the oil, and the oil is discharged from the oil discharge port. Since the oil cavity 7 is located higher than the oil-water detector 8, the oil discharged from the oil discharge port can be guaranteed to have a high purity. After running for a certain period of time, the vibrator 12 is started to emit pulse vibration, so that the lower grid 15 drives the fiber rope 9 to vibrate, and the residue adhering to the fiber rope 9 is cleaned off, so as to realize the self-cleaning of the oil-water separator of the fiber rope 9.

[0026] Finally, it should be noted that the above examples are only specific embodiments of the present invention. Obviously, the present invention is not limited to the above examples, and many variations are possible. All variations that can be directly derived or associated with the content disclosed by a person skilled in the art should be considered as the protection scope of the present invention.

Claims

1. A fiber rope oil-water separation device, comprising a box body, a bottom surface of the box body is provided with legs, and a top surface of the box body is provided with a cover plate; characterized in that: The bottom surface of the box body is in an inverted cone shape to form a sediment pool, and the slag discharge port is set at the lowest point of the sediment pool; the side wall of the box body close to the steady flow distribution plate is provided with an oil and water inlet, and the side wall of the box body opposite to the oil and water inlet is provided with a drain port; the cover plate is provided with an oil cavity, and the oil discharge port is provided on the top surface of the oil cavity; the box body is provided with a fiber rope, an upper rack, a lower rack and a steady flow distribution plate; the steady flow distribution plate is a rectangular plate, and its surface is arranged with diversion holes from top to bottom, and the diameter of the diversion holes gradually increases from top to bottom. The steady flow distribution plate is set on one side of the inside of the box body, and its upper and lower ends have gaps with the top surface and the bottom surface of the box body respectively, so as to stabilize the flow distribution plate. The upper end of the flow distribution plate is connected and fixed to the side wall of the box through an upper partition, and the lower grid is located above the sludge pool. An exciter is provided at one end of the lower grid, and the lower grid is provided with strip holes; the grid is formed by a rectangular grid that is vertically bent from the middle to form a horizontal surface and a vertical surface of the grid, and both ends of the horizontal surface of the grid are fixedly connected to the top surface of the box by a suspension spring, and the bottom end of the vertical surface of the grid is inserted into the strip hole to ensure that the grid and the lower grid can move up and down relative to each other; fiber ropes are arranged between the horizontal surface of the grid and the lower grid, and the upper end of the fiber rope is fixed to the horizontal surface of the grid, and the lower end of the fiber rope is fixed to the lower grid.

2. A fiber rope oil-water separation device as claimed in claim 1, characterized in that: The drain valve is located above the vibrator, and a slag separation plate is arranged on the inner wall of the box body between the drain valve and the vibrator.

3. A fiber rope oil-water separation device as claimed in claim 1, characterized in that: The fiber rope is made of a hydrophilic and oleophobic material.

4. A fiber rope oil-water separation device as claimed in claim 1, characterized in that: The cover plate is also provided with an oil-water detector, and a detection end of the oil-water detector extends into the box body.

5. A fiber rope oil-water separation device as claimed in claim 1, characterized in that: The oil outlet, water outlet and slag outlet are all controlled to open and close by valves.

6. A fiber rope oil-water separation device as claimed in claim 5, characterized in that: The valve is electrically connected to a control box, and the switch is controlled by the control box.

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