Intensive coalescence device

Abstract

The utility model discloses an intensive coalescence device which structurally comprises a box body, a liquid inlet is formed in the lower portion of the box body, a grid type lower supporting frame is arranged at the bottom of an inner cavity of the box body, semicircular through holes enabling the bottoms of the inner cavity of the box body to be communicated with one another are evenly formed in the bottom of the lower supporting frame, and at least one cross-shaped supporting column is arranged in the box body. The cross-shaped supporting column is connected with a vertical partition plate, the vertical partition plate is arranged above the lower supporting frame, the edge of the vertical partition plate is fixedly connected with the interior of the box body, an inner cavity of the box body is divided into a plurality of areas, the areas are filled with multiple fiber cotton layers, and an upper supporting frame capable of compressing the fiber cotton layers to the preset thickness is installed on the fiber cotton layers in a pressing mode; the vertical partition plates and the lower supporting frames with the bottoms communicated with one another are arranged, the interior of the box body is divided into a plurality of small-space areas, the same liquid inlet is adopted in the areas, synchronous overflowing is achieved, and the device has the advantages of being large in size, high in volume utilization rate, low in production cost and good in expansibility. The problem that the strength of the filling material and the volume of the bearing container are mutually restricted is effectively solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of oil-water separation equipment, and particularly relates to an intensive coalescence device. Background Art

[0002] In the oil-water separation technology, the coalescence device is used to make the fine oil droplets in the oil-water mixture aggregate and grow into large-diameter oil droplets, and then make the oil phase easier to separate from the water phase to achieve a better oil-water separation effect. The existing coalescence devices usually include one or more groups of carrier containers and the filling materials placed therein. When the oil-water mixture flows through the coalescence device, the surface of the filling materials provides aggregation growth points for the fine oil droplets. The number of aggregation growth points directly affects the effect of oil droplet aggregation, that is, the oil-water separation effect; and the number of aggregation growth points is affected by the specific surface area and the amount of the filling materials. The former depends on the physical and chemical properties of the filling materials, and it is relatively complex to improve. The latter depends on the overall volume density of the filling materials. The existing coalescence devices are mainly divided into two types: cylindrical and box-shaped according to the carrier containers. The cylindrical coalescence device has a small volume and is easy to install. Most of them are used in combination with coalescence tanks, floating oil tanks, etc. The number of required groups is large. Correspondingly, the volume occupancy rate of the filling materials relative to the coalescence device is relatively low. The smaller the overall volume density, the less the filling amount. And each group of coalescence devices needs to be provided with inlets, outlets and pipelines, and the production cost is also relatively high. The box-shaped coalescence device has a large volume, a large filling amount of the filling materials, and a larger overall volume density formed. However, the flow-through area formed by the larger container volume is also large. On the one hand, it is required that the filling materials have good strength and ductility to avoid large gaps in the edge area due to self-weight deformation and deformation under the flow-through pressure, which affects the oil-water separation effect. Especially for the layer-by-layer filling materials, the problem of warping is likely to occur. On the other hand, the larger container volume bears greater pressure, requires higher structural strength, and has more complex processing technology, which is also not conducive to the control of production cost. Therefore, the existing box-shaped coalescence devices still have volume limitations, and there is still room for optimizing the volume utilization rate of this type of coalescence device. Summary of the Utility Model

[0003] The purpose of the utility model is to provide an intensive coalescence device to solve the problems that when the existing coalescence devices are applied in the coalescence device, the maximum volume cannot be achieved, the overall volume density of the filling materials is relatively low, and the strength of the filling materials and the volume of the carrier container restrict each other.

[0004] The utility model is realized by the following technical solutions:

[0005] The utility model provides an intensive coalescence device, the structure of which includes a box body. A liquid inlet is arranged at the lower part of the box body. A grid-shaped lower support frame is arranged at the bottom of the inner cavity of the box body. Semi-circular through holes are evenly formed at the bottom of the lower support frame, and the semi-circular through holes are used to communicate the bottom of the inner cavity of the box body with each other. At least one cross support column is arranged in the box body, and a vertical partition board is connected to the cross support column. The vertical partition board is arranged above the lower support frame. The edge of the vertical partition board is fixedly connected with the inner part of the box body and divides the inner cavity of the box body into multiple areas. Multiple layers of fiber cotton layers are filled in the areas. An upper support frame is pressed on the fiber cotton layers, and the upper support frame is used to compress the fiber cotton layers to a preset thickness;

[0006] Based on the above technical features, through the arrangement of the vertical partition board and the lower support frame with interconnected bottoms, the inner part of the box body is divided into multiple areas with smaller spaces. The same liquid inlet is adopted for the multiple areas, and the liquid flows through synchronously, which not only solves the problem of the warping of the fiber cotton layers caused by too large filling area, but also improves the volume occupancy rate of the fiber cotton layers relative to the box body, thereby effectively improving the treatment efficiency. At the same time, the volume of the device can be expanded in length or width according to actual needs, effectively eliminating the limitation of the too large volume of the container on the oil-water separation effect.

[0007] Preferably, the radius of the semi-circular through hole is not less than half of the height of the lower support frame and not greater than 2 / 3 of the height of the lower support frame. This design can enable the lower support frame to provide sufficient support strength for the fiber cotton layers and minimize the liquid flow resistance to the greatest extent.

[0008] Preferably, a grid plate is arranged between the lower support frame and the fiber cotton layers, and the grid density of the grid plate is smaller than that of the lower support frame. This design can have a better supporting effect on the fiber cotton layers and further reduce the deformation of the fiber cotton layers caused by their own weight and the upper pressing.

[0009] Preferably, a first porous plate is arranged between the lower support frame and the fiber cotton layers, and a non-porous area is arranged in a circle at the edge of the first porous plate. This design can provide a better supporting effect on the fiber cotton layers while controlling the uniformity of the liquid flowing through the fiber cotton layers, reducing the liquid flow rate from the edge area, and being beneficial to improving the oil-water separation effect.

[0010] Preferably, the fiber cotton layers are made of metal fibers. This design enables oil droplets to aggregate and grow on the surface of the metal fibers. However, due to the weak affinity of the metal fibers for the oil phase, the oil droplets are more likely to break away and float upward after growing to a certain particle size and are not easy to form an oil film on the fiber cotton layers.

[0011] Preferably, a pressing plate is provided between the fiber cotton layers. The pressing plate is a hollow frame structure. This design can make the edge of the fiber cotton layer have a greater compaction density, increase the resistance to liquid over - flow from the edge area, thereby preventing the liquid from flowing directly through the edge area without coalescence and affecting the oil - water separation effect.

[0012] Preferably, a clamping plate is provided on the upper support frame. The clamping plate is fixedly welded to the inner wall of the box body. This design can make the fiber cotton layer maintain a relatively stable pore size density and improve the pressure - bearing capacity of the fiber cotton layer.

[0013] Preferably, a second perforated plate is provided between the upper support plate and the fiber cotton layer. This design can enable the oil droplets after aggregation and growth to float smoothly, while restricting the migration of fibers within the fiber cotton layer.

[0014] Preferably, the box body is further provided with a cover plate. The upper end of the cross - support column extends upward to the cover plate. An interconnected area is formed between the upper support frame and the cover plate. A liquid outlet is provided on the upper side wall of the box body. This design can make the coalescence device be used as an independent device, simplify the assembly difficulty, and is also more conducive to combination with other devices.

[0015] Preferably, an observation port is provided on the cover plate, and an observation port cover plate is provided on the observation port.

[0016] Advantageous Effects

[0017] One of the above - mentioned technical solutions has the following advantages or beneficial effects:

[0018] 1) Through the setting of the vertical partition board and the lower support frame that are interconnected at the bottom, the interior of the box body is divided into multiple smaller areas. Multiple areas use the same liquid inlet and have synchronous over - flow. This device has the characteristics of large volume, high volume utilization rate, lower production cost, and good expansibility, effectively solving the problem of mutual restriction between the strength of the filling material and the volume of the bearing container.

[0019] 2) By setting support frames, grid plates, and perforated plates at the upper and lower ends of the fiber cotton layer, and a pressing plate between the fiber cotton layers, etc., the strength of the fiber cotton layer is effectively strengthened, avoiding the problem of deformation of the fiber cotton layer due to too large an area, further solving the problem of mutual restriction between the strength of the filling material and the volume of the bearing container, realizing the large - volume of the coalescence device, and having a higher processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] By reading the following detailed description of the non - restrictive embodiments with reference to the accompanying drawings, other features, objectives, and advantages of the present invention will become more obvious:

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 is a top view structural schematic diagram of the present utility model;

[0023] Figure 3 is a three-dimensional structural schematic diagram of the box body of the present utility model;

[0024] Figure 4 is a top view structural schematic diagram of the box body of the present utility model;

[0025] Figure 5 is a structural schematic diagram of the first porous plate of the present utility model;

[0026] Figure 6 is a structural schematic diagram of the pressing plate of the present utility model;

[0027] Figure 7 is a structural schematic diagram of the upper support frame of the present utility model;

[0028] In the figure: box body 1; liquid inlet 1a; liquid outlet 1b; lower support frame 2; semi-circular through hole 2a; grid plate 3; first porous plate 4; fiber cotton layer 5; second porous plate 7; upper support frame 8; clamping plate 9; cross support column 10; vertical partition 11; cover plate 12; observation port 13; observation port cover plate 14. Specific embodiments

[0029] The present utility model will be further described in detail below in conjunction with embodiments, but the embodiments of the present utility model are not limited thereto.

[0030] As Figure 1 shown, the present utility model provides an intensive coalescing device, the structure of which includes a box body 1, a liquid inlet 1a is provided at the lower part of the box body 1, and a grid-type lower support frame 2 (as Figure 4 shown) is provided at the bottom of the inner cavity of the box body 1. Semi-circular through holes 2a are evenly opened at the bottom of the lower support frame 2, and the semi-circular through holes 2a are used to communicate the bottom of the inner cavity of the box body 1 with each other. Preferably, the radius of the semi-circular through holes 2a is not less than half of the height of the lower support frame 2 and not greater than 2 / 3 of the height of the lower support frame 2 to provide sufficient support strength and minimize the liquid flow resistance.

[0031] As Figure 1 shown, a cross support column 10 is provided at the center of the box body 1, a vertical partition 11 is connected to the cross support column 10, the vertical partition 11 is provided above the lower support frame 2, and the edge of the vertical partition 11 is fixedly connected to the inside of the box body 1 and divides the inner cavity of the box body 1 into four regions of the same size (as Figure 3As shown. In each area above the lower support frame 2, a grid plate 3, a first perforated plate 4, a fiber cotton layer 5, a second perforated plate 7, an upper support frame 8, and a clamping plate 9 are sequentially provided. The grid density of the grid plate 3 is smaller than that of the lower support frame 2. As Figure 5 shown, a non-perforated area is provided around the edge of the first perforated plate 4. The grid plate 3 and the first perforated plate 4 provide a supporting effect for the fiber cotton layer 5, preventing the fiber cotton layer 5 from warping, sagging and other deformations due to its own weight and upper end pressing. The first perforated plate 4 can also control the uniformity of the liquid flowing through the fiber cotton layer 5, and the non-perforated edge can reduce the liquid flow rate from the edge area. The fiber cotton layer 5 has multiple layers and is made of metal fibers. A pressing plate 6 is provided between the fiber cotton layers 5. As Figure 6 shown, the pressing plate 6 is a hollow frame structure. The pressing plate 6 is used to improve the compaction density of the edge of the fiber cotton layer 5 and increase the resistance of the liquid flowing through the edge area, thereby preventing the liquid from flowing through the edge area directly without coalescence. As Figure 1 and Figure 2 shown, a second perforated plate 7 is provided on the fiber cotton layer 5. The second perforated plate 7 is press-fitted with an upper support frame 8. A clamping plate 9 is provided on the upper support frame 8. The clamping plate 9 is welded and fixed to the inner wall of the box body 1. The second perforated plate 7 is used to enable the oil beads after aggregation and growth to float smoothly, and at the same time restrict the fiber migration in the fiber cotton layer 5. The upper support frame 8 and the clamping plate 9 are used to compress the fiber cotton layer 5 to a preset thickness and maintain its stability. As Figure 7 shown, the upper support frame 8 is also set as a grid type. As Figure 2 shown, the clamping plate 9 is only provided at the edge of the upper support frame 8. During actual assembly, lay a layer of fiber cotton layer 5, lay a layer of pressing plate 6 to the preset number of layers, first put in the upper support plate, and then put in the clamping plate 9 and weld the clamping plate 9 to the inside of the box body 1.

[0032] Furthermore, as Figure 1 and Figure 2 shown, the box body 1 is further provided with a cover plate 12. An observation port 13 for observing the aggregation of the oil phase is provided on the cover plate 12. An observation port cover plate 14 is provided on the observation port 13. The upper end of the cross support column 10 extends upward to the cover plate 12. A mutually connected area is formed between the upper support frame 8 and the cover plate 12. A liquid outlet 1b is provided on the upper side wall of the box body 1. The liquid outlet 1b is a long strip-shaped outlet (as Figure 3 shown). The coalescence device with this structure is used as a separate device, which simplifies the assembly difficulty and is also easier to be combined with other devices. Preferably, an independent oil drain port (not shown in the drawings) can also be provided at the top of the box body 1. The liquid outlet 1b is used for discharging the water phase.

[0033] In actual use, the oil-water mixture enters the box body 1 from the liquid inlet 1a, fills the grid of the entire lower support plate through the semi-circular through hole 2a, and after passing through the grid plate 3, evenly enters the fiber cotton layer 5 through the uniform distribution effect of the first porous plate 4, and fully contacts the metal fibers of the fiber cotton layer 5. The fine oil droplets therein are captured, aggregated and grown into large-diameter oil droplets on the surface of the metal fibers. Due to the weak affinity of the metal fibers for the oil phase, the oil droplets that grow to a certain diameter break away from the metal fibers and float upward, and successively pass through the second porous plate 7 and the upper support frame 8, enter the cavity above the box body 1, flow out from the liquid outlet 1b, and enter the next treatment process.

[0034] As described above, it is only a preferred embodiment of the present invention, and does not impose any limitation on the technical scope of the present invention. Therefore, any minor modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention still belong to the protection scope of the present invention.

Claims

1. An intensive coalescing device, comprising a box body, a liquid inlet is provided at the lower part of the box body, and is characterized in that: A grid-type lower support frame is provided at the bottom of the inner cavity of the box, and semicircular through holes are evenly opened at the bottom of the lower support frame, and the semicircular through holes are used to make the bottom of the inner cavity of the box interconnected, and at least one cross support column is provided in the box, and a vertical partition is connected to the cross support column, and the vertical partition is arranged above the lower support frame, and the edge of the vertical partition is fixedly connected to the inside of the box and divides the inner cavity of the box into multiple areas, and multiple layers of fiber cotton layers are filled in the areas, and an upper support frame is pressed on the fiber cotton layer, and the upper support frame is used to compress the fiber cotton layer to a preset thickness.

2. The intensive agglomeration device according to claim 1, characterized in that: The radius of the semicircular through hole is not less than half of the height of the lower support frame and not greater than 2 / 3 of the height of the lower support frame.

3. The intensive agglomeration device according to claim 1, characterized in that: A mesh plate is provided between the lower support frame and the fiber cotton layer, and the mesh density of the mesh plate is smaller than that of the lower support frame.

4. The intensive agglomeration device according to claim 1, characterized in that: A first porous plate is arranged between the lower support frame and the fiber cotton layer, and a circle of non-porous area is arranged at the edge of the first porous plate.

5. The intensive agglomeration device according to claim 1, characterized in that: The fiber cotton layer is made of metal fibers.

6. The intensive agglomeration device according to claim 1, characterized in that: A pressing plate is arranged between the fiber cotton layers, and the pressing plate is a hollow frame structure.

7. The intensive agglomeration device according to claim 1, characterized in that: The upper support frame is provided with a clamping plate, and the clamping plate is welded and fixed to the inner wall of the box.

8. The intensive agglomeration device according to claim 1, characterized in that: A second porous plate is provided between the upper support frame and the fiber cotton layer.

9. The intensive agglomeration device according to claim 1, characterized in that: The box body is also provided with a cover plate, the upper end of the cross support column extends upward to the cover plate, a mutually connected area is formed between the upper support frame and the cover plate, and a liquid outlet is provided on the upper side wall of the box body.

10. The intensive agglomeration device according to claim 9, characterized in that: An observation port is arranged on the cover plate, and an observation port cover plate is arranged on the observation port.

Images