Multi-stage solid-liquid separation device

Abstract

The utility model relates to the technical field of multi-stage filtration, in particular to a multi-stage solid-liquid separation device which comprises a vertically arranged overflowing channel, and a filter funnel, an inclined filter plate and an activated carbon filter plate are sequentially mounted in the overflowing channel along the liquid flowing direction; the filtering funnel is conical, and primary filtering holes are formed in the side wall of the filtering funnel; a positioning hole is coaxially formed in the bottom of the filtering funnel, a material receiving box capable of being pulled out upwards is coaxially inserted into the positioning hole, and a folding edge formed by outwards folding a box opening in the top of the material receiving box is in seam allowance fit with the top of the positioning hole; and a box opening of the material receiving box is matched with the inner wall of the filtering funnel to form a slope for filtered impurities to slide into a box cavity of the material receiving box. Impurities in the filtering funnel can be effectively removed, the filtering holes are prevented from being blocked, and then the filtering efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of multi-stage filtration, in particular to a multi-stage solid-liquid separation device. Background Art

[0002] Existing filtration equipment typically uses a single filter screen for filtration. Larger mesh sizes result in poor filtration, while smaller mesh sizes can easily become clogged by large debris. To address these technical issues, patent CN202036842U discloses a multi-stage filter. Multiple screens are arranged sequentially within the filter, with the apertures of each screen decreasing in size along the water flow direction, thereby achieving graded filtration of debris.

[0003] Filtration using multiple layers of screens, as described in the prior art, can effectively remove debris from sewage. During the filtration process, when sewage contacts the first layer of screen, the larger pore diameter allows small debris to pass through smoothly, while larger debris is blocked. However, over extended use, debris accumulates on the first layer of screen and cannot be promptly removed, causing the pores to shrink until they become clogged, which in turn blocks the pipe. This severely impacts the progress of sewage filtration and is an urgent problem that needs to be addressed. Utility Model Content

[0004] In order to avoid and overcome the technical problems existing in the prior art, the present invention provides a multi-stage solid-liquid separation device, which can effectively remove debris in the filter funnel, avoid clogging of the filter holes, and thus improve the filtration efficiency.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A multi-stage solid-liquid separation device includes a vertically arranged flow channel, in which a filter funnel, an inclined filter plate and an activated carbon filter plate are installed in sequence along the liquid flow direction for performing step-by-step filtration with gradually decreasing filter pore diameters; a receiving box is arranged at the filter funnel for collecting solids falling from the filter surface of the filter funnel, and a sweeping portion is arranged at the inclined filter plate for pushing solids filtered out of the inclined filter plate away from the filter surface of the inclined filter plate.

[0007] As a further solution of the present invention: the filter funnel is conical, and a primary filter hole is opened on its side wall; a positioning hole is coaxially opened at the bottom of the filter funnel, and a material receiving box that can be pulled out upward is coaxially inserted into the positioning hole, and the folded edge formed by the outward folding at the top box opening of the material receiving box forms a stop fit with the top of the positioning hole; the box opening of the material receiving box cooperates with the inner wall of the filter funnel to form a slope for the filtered impurities to slide into the box cavity of the material receiving box.

[0008] As a further solution of the present invention: the material receiving box is cylindrical, and a secondary filter hole with a smaller aperture than the primary filter hole is provided on the box body; an outer chamfered surface is formed at the folded edge, which fits into the inner wall of the filter funnel; the horizontally arranged upper end surface of the material receiving box opening is located below the lowest primary filter hole on the inner wall of the filter funnel, and an inner chamfered surface is formed at the inner edge of the upper end surface of the material receiving box opening, and the inner chamfered surface constitutes a slope.

[0009] As a further solution of the utility model: it includes a cylinder with its axis arranged in the vertical direction, the interior of the cylinder constitutes a flow channel, and the filter funnel is coaxially fixed to the interior of the cylinder; the filter funnel, the inclined filter plate and the activated carbon filter plate cooperate with each other to separate the interior of the cylinder layer by layer from top to bottom.

[0010] As a further solution of the present invention: the inclined filter plate is arranged in a cylinder with an inclination to one side, and a secondary filter hole with a smaller aperture than the primary filter hole is opened on the inclined filter plate; a discharge port for impurities rolling down from the inclined filter plate to flow out is opened on the cylinder located at the lowest point of the inclined filter plate.

[0011] As a further solution of the present invention: the push-sweeping part is installed at the highest point of the inclined filter plate; the push-sweeping part includes a fixing frame fixed to the outside of the cylinder, and a telescopic rod is fixedly installed on the fixing frame. The telescopic end of the telescopic rod penetrates into the cylinder and forms a dynamic seal with the cylinder; the telescopic direction of the telescopic rod is parallel to the inclination direction of the inclined filter plate; the telescopic end of the telescopic rod is fixedly installed with a push plate which can slide back and forth along the filtering surface of the inclined filter plate under the drive of the telescopic rod to push solids away from the filtering surface.

[0012] As a further solution of the present invention: a guide plate is installed under the material receiving box to receive the liquid from the material receiving box and the filter funnel; the guide plate is arranged obliquely on the cylinder, the lowermost end of the guide plate is located above the filtering surface of the inclined filter plate, and the liquid flowing down from the guide plate falls on the upper half of the filtering surface of the inclined filter plate.

[0013] As a further solution of the present invention, a pull rod for pulling the material receiving box upward out of the positioning hole is coaxially fixed in the box cavity of the material receiving box.

[0014] As a further solution of the present invention, a water receiving trough with an opening vertically upward is arranged at the bottom of the cylinder, the activated carbon filter plate covers the notch of the water receiving trough, and a faucet is connected to the trough wall of the water receiving trough.

[0015] As a further solution of the present invention, four sets of universal wheels for movement are installed at the bottom of the cylinder, and a handle is installed on the outer wall of the cylinder.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. When the conical filter funnel provided by the present invention filters a solid-liquid mixture, the liquid and smaller impurities fall through the primary filter holes onto the inclined filter plate for secondary filtration. Impurities retained within the filter funnel slide along the inner wall of the filter funnel into the receiving box, preventing accumulation and clogging of the primary filter holes, thereby improving filtration efficiency. At the same time, all impurities fall into the receiving box for centralized processing, thus improving filtration efficiency.

[0018] 2. The top of the material receiving box of the utility model has a slope formed between the inner walls of the material receiving funnel, which can make impurities fall into the material receiving box more easily; at the same time, the outer chamfered surface and the inner wall cooperate with each other to prevent impurities from falling into the gap between the material receiving box and the filter funnel.

[0019] 3. The inclined filter plate of the utility model can concentrate the filtered impurities at the discharge port of the cylinder. A receiving bucket can be placed at the bottom of the discharge port to receive the impurities for centralized collection and treatment.

[0020] 4. In the utility model, a telescopic rod is used to drive the push plate to move along the filtering surface of the inclined filter plate, which can push the impurities filtered on the inclined filter plate to the discharge port, thereby avoiding the blockage of the secondary filter holes due to impurities in the inclined filter plate, thereby improving the filtering efficiency of the inclined filter plate.

[0021] 5. The inclined deflector effectively guides the liquid flowing from the receiving box and filter funnel to flow in a predetermined direction, avoiding splashing and accumulation of the liquid during the flow process, thereby improving the fluidity and efficiency of the entire system. The design of the deflector allows the liquid to fall directly on the upper half of the filter surface of the inclined filter plate. This not only fully utilizes the filter area of the filter plate, but also ensures that the liquid is evenly distributed during the filtration process, reduces local overload, and improves filtration efficiency and quality.

[0022] 6. The design of the guide plate makes the liquid flow more orderly, reducing equipment contamination and wear caused by liquid splashing or accumulation, thereby extending the service life of the equipment and reducing maintenance costs. Through reasonable guide design, it can ensure that the system maintains high stability during operation, avoid failures or shutdowns caused by poor liquid flow or accumulation, and improve the reliability and continuous operation capacity of the production line. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0024] Figure 2 It is a structural schematic diagram of the material receiving funnel in the utility model.

[0025] Figure 3 It is a structural schematic diagram of the material receiving box in the utility model.

[0026] In the picture:

[0027] 10. Cylinder; 11. Water receiving trough; 12. Faucet; 13. Universal wheel; 14. Handle; 15. Discharge port; 16. Positioning ring; 17. Positioning block; 10a. Upper section; 10b. Middle section; 10c. Lower section; 20. Filter funnel; 21. Primary filter hole; 22. Positioning hole; 30. Receiver box; 31. Folding edge; 311. External chamfered surface; 32. Internal chamfered surface; 33. Pull rod; 34. Secondary filter hole; 40. Inclined filter plate; 41. Secondary filter hole; 50. Push-sweep unit; 51. Push plate; 52. Telescopic rod; 53. Fixing frame; 60. Activated carbon filter plate; 70. Guide plate. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] See also Figures 1 to 3 The utility model includes a rectangular hollow cylinder 10, which is divided into an upper section 10a, a middle section 10b and a lower section 10c stacked in sequence. The adjacent sections are sealed and connected to each other by a flange structure to form a whole, so that when one part is damaged, it can be replaced in time. The upper section 10a and the middle section 10b are both open at both ends. The lower section 10c is open at the top and sealed at the bottom. Four universal wheels 13 are arranged on the bottom surface of the lower section 10c, and the cylinder 10 can be pushed by the handle 14 on the side of the cylinder 10, so that the cylinder 10 can be pushed to the corresponding place for filtering.

[0030] A filter funnel 20, an inclined filter plate 40, and an activated carbon filter plate 60 are arranged in order from top to bottom within the rectangular flow passage formed within the cylinder 10. The filter funnel 20 is mounted in the upper section 10a of the cylinder 10, the guide plate 70 is mounted in the middle section 10b of the cylinder 10, and the inclined filter plate 40 and activated carbon filter plate 60 are mounted in the lower section 10c of the cylinder 10.

[0031] A positioning ring 16 is coaxially mounted on the inner wall of upper section 10a. A filter funnel 20, with an outwardly folded edge, is press-fitted from top to bottom onto positioning ring 16, facilitating its assembly and removal. Filter funnel 20 is conical in shape, with a primary filter aperture 21 defined in its sidewall. A positioning hole 22 is coaxially defined at the bottom of filter funnel 20. A removable material receiving box 30 is coaxially inserted into positioning hole 22. The outwardly folded edge 31 at the top opening of the material receiving box 30 forms a stop that mates with the top of the positioning hole 22. The opening of the material receiving box 30 and the inner wall of the filter funnel 20 form a slope that allows filtered impurities to slide into the cavity of the material receiving box 30.

[0032] The material receiving box 30 is cylindrical and has secondary filter holes 34 with a smaller diameter than the primary filter holes 21. A pull rod 33 is coaxially fixed within the cavity of the material receiving box 30, which is used to pull the material receiving box 30 upward and out of the positioning hole 22. The folded edge 31 has an outer chamfered surface 311 formed on the inner wall of the filter funnel 20, which mates with the material receiving box 30. The upper end of the horizontally arranged opening of the material receiving box 30 is located below the lowest primary filter hole 21 on the inner wall of the filter funnel 20. The inner edge of the upper end of the opening of the material receiving box 30 has an inner chamfered surface 32 formed on the inner edge of the opening of the material receiving box 30, which forms a slope.

[0033] A deflector plate 70 is mounted below the receiving box 30 to receive liquid flowing from the receiving box 30 and the filter funnel 20. The deflector plate 70 is fixedly mounted on the middle section 10b. The deflector plate 70 is arranged at an angle relative to the cylinder 10, with its lowermost end positioned above the filter surface of the inclined filter plate 40. Liquid flowing from the deflector plate 70 lands on the upper half of the filter surface of the inclined filter plate 40.

[0034] Positioning blocks 17 are arranged on two opposing inner side surfaces of the lower section 10c of the cylinder 10, and the two positioning blocks 17 are at different heights. The positioning block 17 located at the discharge port 15 of the cylinder 10 is lower than the discharge port 15, while the other positioning block 17 is higher than the discharge port 15. This allows the rectangular inclined filter plate 40 to be installed in the lower section 10c of the cylinder 10, with the opposing edges of the lower surface of the inclined filter plate 40 pressing against the corresponding positioning blocks 17. This allows impurities to roll along the upper surface of the inclined filter plate 40 to the discharge port 15 during filtration, where they fall into the receiving bucket for collection.

[0035] The push-sweep unit 50 is mounted at the highest point of the inclined filter plate 40. It includes a mounting bracket 53 fixed to the outside of the cylinder 10. A telescopic rod 52 is fixedly mounted on the mounting bracket 53. The telescopic end of the telescopic rod 52 penetrates the cylinder 10 and forms a dynamic seal with the cylinder 10. The telescopic direction of the telescopic rod 52 is parallel to the tilt direction of the inclined filter plate 40. A push plate 51 is fixedly mounted at the telescopic end of the telescopic rod 52. Driven by the telescopic rod 52, it slides back and forth along the filter surface of the inclined filter plate 40 to push solids away from the filter surface. The telescopic rod 52 can be equipped with a telescopic motor or a hydraulic cylinder.

[0036] A water receiving trough 11 opening vertically upward is arranged at the bottom of the lower section 10 c , and the activated carbon filter plate 60 covers the notch of the water receiving trough 11 , and a faucet 12 is connected to the trough wall of the water receiving trough 11 .

[0037] During use, all components are assembled, and then the barrel 10 is pushed to the outlet of the solid-liquid mixture using the handle 14. The mixture is then injected into the filter funnel 20. The mixture passes through the filter funnel 20, the material receiving box 30, the guide plate 70, and the inclined filter plate 40 in sequence. Finally, the liquid is purified by the adsorption of the activated carbon in the activated carbon filter plate 60. The purified liquid is stored in the water receiving tank 11 and then released through the faucet 12. When the impurities in the material receiving box 30 are collected, the injection of the mixture into the filter funnel 20 is stopped. The material receiving box 30 is lifted using the pull rod 33, and the impurities therein are poured out. The filter funnel 20 is then returned to the positioning hole 22. The mixture is then injected into the filter funnel 20 to continue filtering. When the inclined filter plate 40 is working, part of the impurities will roll out of the discharge port 15 along the plate surface of the inclined filter plate 40 under the action of gravity; the other part will be pushed to the discharge port 15 by the reciprocating push of the push plate 51, and fall into the receiving bucket from the discharge port 15 for collection.

[0038] After the filtration is completed, the entire device is disassembled and the interior is cleaned. After cleaning, it is assembled for subsequent use.

[0039] The above are only preferred specific implementation methods of the present invention, but the protection scope of the present invention is not limited to them. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention within the technical scope disclosed by the present invention, and they should be covered by the protection scope of the present invention.

Claims

1. A multi-stage solid-liquid separation device, characterized in that: The invention comprises a vertically arranged flow channel, wherein a filter funnel (20) for performing step-by-step filtration and having filter pores with gradually decreasing diameters, an inclined filter plate (40) and an activated carbon filter plate (60) are sequentially installed in the flow channel along the liquid flow direction; a material receiving box (30) for collecting solids falling from the filter surface of the filter funnel (20) is arranged at the filter funnel (20); a positioning hole (22) is coaxially opened at the bottom of the filter funnel (20); the material receiving box (30) is coaxially inserted into the positioning hole (22), and the material receiving box (30) can be pulled out of the positioning hole (22) upward; and a sweeping portion (50) for pushing solids filtered by the inclined filter plate (40) away from the filter surface of the inclined filter plate (40) is arranged at the inclined filter plate (40).

2. A multi-stage solid-liquid separation device according to claim 1, characterized in that: The filter funnel (20) is conical and has a primary filter hole (21) on its side wall; a folded edge (31) formed by folding outwards at the top of the box opening of the material receiving box (30) cooperates with the top of the positioning hole (22) to form a stop; the box opening of the material receiving box (30) cooperates with the inner wall of the filter funnel (20) to form a slope for filtered impurities to slide into the box cavity of the material receiving box (30).

3. A multi-stage solid-liquid separation device according to claim 2, characterized in that: The material receiving box (30) is cylindrical, and a secondary filter hole (34) having a smaller pore size than the primary filter hole (21) is formed on the box body of the material receiving box (30); an outer chamfered surface (311) is formed at the folded edge (31) and is in contact with the inner wall of the filter funnel (20); the upper end surface of the box opening of the material receiving box (30) is arranged horizontally and is located below the primary filter hole (21) at the lowest point on the inner wall of the filter funnel (20), and an inner chamfered surface (32) is formed at the inner edge of the upper end surface of the box opening of the material receiving box (30), and the inner chamfered surface (32) forms a slope.

4. A multi-stage solid-liquid separation device according to claim 1, 2 or 3, characterized in that: The invention comprises a cylinder (10) whose axis is arranged in a vertical direction, wherein the interior of the cylinder (10) forms a flow passage, and a filter funnel (20) is coaxially fixedly connected to the interior of the cylinder (10); the filter funnel (20), the inclined filter plate (40) and the activated carbon filter plate (60) cooperate with each other to separate the interior of the cylinder (10) layer by layer from top to bottom.

5. The multi-stage solid-liquid separation device according to claim 4, characterized in that: The inclined filter plate (40) is arranged in a side-tilted manner in the cylinder (10), and a secondary filter hole (41) having a smaller pore size than the primary filter hole (21) is provided on the inclined filter plate (40); and a discharge port (15) for the impurities rolling down from the inclined filter plate (40) to flow out is provided on the cylinder (10) at the lowest point of the inclined filter plate (40).

6. The multi-stage solid-liquid separation device according to claim 5, characterized in that: The push-sweep portion (50) is mounted at the highest point of the inclined filter plate (40); the push-sweep portion (50) comprises a fixing frame (53) fixed to the outside of the cylinder (10); a telescopic rod (52) is fixedly mounted on the fixing frame (53); the telescopic end of the telescopic rod (52) penetrates into the cylinder (10) and forms a dynamic seal with the cylinder (10); the telescopic direction of the telescopic rod (52) is parallel to the inclination direction of the inclined filter plate (40); a push plate (51) is fixedly mounted at the telescopic end of the telescopic rod (52) and can slide back and forth along the filtering surface of the inclined filter plate (40) under the drive of the telescopic rod (52) to push solids away from the filtering surface.

7. The multi-stage solid-liquid separation device according to claim 6, characterized in that: A guide plate (70) is installed below the material receiving box (30) for receiving liquid from the material receiving box (30) and the filter funnel (20); the guide plate (70) is arranged obliquely on the cylinder (10), the lowermost end of the guide plate (70) is located above the filtering surface of the inclined filter plate (40), and the liquid flowing down from the guide plate (70) falls on the upper half of the filtering surface of the inclined filter plate (40).

8. The multi-stage solid-liquid separation device according to claim 7, characterized in that: A pull rod (33) for pulling the material receiving box (30) upward out of the positioning hole (22) is coaxially fixed in the box cavity of the material receiving box (30).

9. The multi-stage solid-liquid separation device according to claim 8, characterized in that: A water receiving trough (11) with an opening facing vertically upward is arranged at the bottom of the cylinder (10), an activated carbon filter plate (60) covers the notch of the water receiving trough (11), and a faucet (12) is connected to the wall of the water receiving trough (11).

10. The multi-stage solid-liquid separation device according to claim 9, characterized in that: Four groups of universal wheels (13) for movement are installed at the bottom of the cylinder (10), and a handle (14) is installed on the outer wall of the cylinder (10).

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