A plate-and-frame filter press for concentrated brine treatment

Abstract

This utility model relates to the field of concentrated brine treatment technology, and in particular to a plate and frame filter press for concentrated brine treatment, comprising: a frame, a collection box installed at the lower end of the frame, a rectangular inlet hole at the top of the collection box, a drain pipe passing through the inlet hole and located inside the collection box, a first slide rail and a second slide rail respectively provided inside the collection box, the first slide rail being connected to one end of a scraper frame via a first slider, the other end of the scraper frame being connected to the second slide rail via a second slider, and multiple outlets and sludge outlets at the bottom of the collection box. By setting up the collection box and placing the lower end of the drain pipe inside the collection box, when the liquid produced by the plate and frame filter press is discharged, it prevents the liquid from splashing outwards in the collection box, thereby affecting the environment. The scraper frame, which can move back and forth, can scrape off the sludge adhering to the inner wall of the collection box and shake the liquid inside the collection box to prevent the liquid from easily solidifying and becoming difficult to clean later.

Description

Technical Field

[0001] This utility model relates to the field of concentrated brine treatment technology, and in particular to a plate and frame filter press for concentrated brine treatment. Background Technology

[0002] Concentrated brine, also known as high-salinity wastewater, typically refers to wastewater with a total salt content greater than 1%. It mainly originates from industries such as chemical processing and the extraction and processing of petroleum and natural gas. Concentrated brine generally contains a variety of substances (including salt, oil, organic matter, heavy metals, and radioactive substances). Direct discharge of concentrated brine would cause serious environmental pollution. Therefore, concentrated brine needs to be treated before discharge. Currently, concentrated brine undergoes chemical flocculation and sedimentation in high-density sedimentation tanks, and the resulting sludge is then filtered by a plate and frame filter press before being transported off-site.

[0003] When a plate and frame filter press is in use, the solid and liquid produced are usually discharged separately. When the liquid produced by the plate and frame filter press is discharged, it is easy to splash outward in the liquid collection frame, which affects the environment. At the same time, the liquid is also easy to solidify, which is not convenient for later cleaning.

[0004] Therefore, it is necessary to provide a plate and frame filter press for concentrated brine treatment to solve the above-mentioned technical problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a plate and frame filter press for concentrated brine treatment.

[0006] This utility model provides a plate and frame filter press for concentrated brine treatment, comprising: a frame, a collection box installed at the lower end of the frame, multiple rows of closely fitted filter plates movably connected to the frame, a hydraulic device for applying pressure to the filter plates on one side of the frame, a liquid inlet in the middle of each filter plate, multiple water outlets at the edges of each filter plate, the liquid inlet being connected to the output end of a sludge pump via an inlet pipe, the input end of the sludge pump being connected to a sludge pipe, the water outlets being connected to a drain pipe via an outlet channel, and a rectangular inlet at the top of the collection box. The drain pipe has its lower end passing through the inlet hole and located inside the collection box. The top of the collection box on both sides of the inlet hole is provided with a first slide rail and a second slide rail, respectively. The first slide rail is connected to one end of the top of the sludge scraper frame via a first slider, and the other end of the top of the sludge scraper frame is connected to the second slide rail via a second slider. The bottom of the collection box is provided with multiple outlets, and the outlets are connected to the outlet pipe via solenoid valves. The bottom of the collection box on one side of the outlet is provided with a mud outlet, and the bottom of the collection box outside the mud outlet is equipped with a sealing mechanism that can open and close the mud outlet.

[0007] Preferably, the sealing mechanism includes a sealing plate, with one end of a first rotating shaft and one end of a second rotating shaft respectively connected to the two sides of the sealing plate. The other end of the first rotating shaft passes through the side of a first support plate and is connected to the drive end of a first motor. The other end of the second rotating shaft is rotatably connected to the side of the first support plate. The sides of the first support plate and the second support plate are respectively connected to the two sides of the liquid collection box.

[0008] Preferably, a frame-shaped sealing ring is installed on the top of the sealing plate, and the sealing ring is made of rubber.

[0009] Preferably, a support plate is provided below the sealing plate, the bottom of the support plate is connected to the telescopic end of the telescopic cylinder, the fixed end of the telescopic cylinder is connected to the top of the mounting plate, and the two sides of the mounting plate are respectively connected to the sides of the first support plate and the second support plate.

[0010] Preferably, the scraper frame includes a frame body, and a U-shaped scraper blade is connected to the side of the frame body. The thickness of the scraper blade is less than the width of the scraper frame.

[0011] Preferably, a frustum-shaped drain cylinder is installed at the bottom of the drain pipe, and the bottom dimension of the drain cylinder is larger than the top dimension of the drain cylinder.

[0012] Preferably, a filter screen is installed at the top of the inside of the liquid outlet.

[0013] Compared with related technologies, the plate and frame filter press for concentrated brine treatment provided by this utility model has the following advantages: 1. This utility model, by setting up a liquid collection box and placing the lower end of the drain pipe inside the liquid collection box, prevents the liquid produced by the plate and frame filter press from splashing outwards in the collection box when it is discharged, thereby affecting the environment. The sludge scraper frame that can move back and forth can scrape off the sludge adhering to the inner wall of the liquid collection box and shake the liquid inside the liquid collection box to prevent the liquid from easily solidifying and making it difficult to clean later. 2. This utility model, by setting a liftable support plate, can support the bottom of the sealing plate, thereby improving the sealing performance of the sealing plate to the mud outlet. 3. By setting up a filter screen, this utility model can filter out foreign objects in the filtered water, preventing them from entering the solenoid valve, clogging the solenoid valve, and affecting subsequent use. Attached Figure Description

[0014] Figure 1 A schematic diagram of a preferred embodiment of a plate and frame filter press for concentrated brine treatment provided by this utility model; Figure 2 for Figure 1 The diagram shown is a structural schematic of a plate and frame filter press for concentrated brine treatment, viewed from below. Figure 3 for Figure 1 The diagram shows the structure of the liquid collection box from a bottom view. Figure 4 for Figure 1 The diagram shows the structure of the liquid outlet; Figure 5 for Figure 1 The diagram shows the internal structure of the liquid collection box. Labels in the diagram: 1. Frame; 2. Filter plate; 3. Hydraulic device; 4. Inlet pipe; 5. Sludge pump; 6. Drain pipe; 7. Collection box; 8. Inlet hole; 9. Sealing mechanism; 10. Support plate; 11. Telescopic cylinder; 12. Mounting plate; 13. Drain cylinder; 14. Sludge outlet; 15. Sealing plate; 16. Sealing ring; 17. First motor; 18. First support plate; 19. Second support plate; 20. Outlet pipe; 21. Solenoid valve; 22. Outlet; 23. First slide rail; 24. First slider; 25. Second slider; 26. Second slide rail; 27. Sludge scraper frame; 28. Frame body; 29. ​​Sludge scraper. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0016] refer to Figures 1 to 5 This utility model provides a plate and frame filter press for concentrated brine treatment, comprising: a frame 1, a collection box 7 installed at the lower end of the frame 1, multiple rows of closely fitted filter plates 2 movably connected to the frame 1, a hydraulic device 3 for applying pressure to the filter plates 2 on one side of the frame 1, a liquid inlet in the middle of the filter plates 2, multiple water outlets at the edges of the filter plates 2, the liquid inlet being connected to the output end of a sludge pump 5 via an inlet pipe 4, the input end of the sludge pump 5 being connected to a sludge pipe, the water outlets being connected to a drain pipe 6 via a drain channel, a rectangular liquid inlet 8 at the top of the collection box 7, and the lower end of the drain pipe 6... The liquid inlet 8 passes through the inside of the liquid collection box 7. The top of the inside of the liquid collection box 7 on both sides of the liquid inlet 8 is provided with a first slide rail 23 and a second slide rail 26 respectively. The first slide rail 23 is connected to one end of the top of the sludge scraper frame 27 through a first slider 24. The other end of the top of the sludge scraper frame 27 is connected to the second slide rail 26 through a second slider 25. The bottom of the liquid collection box 7 is provided with multiple liquid outlets 22. The liquid outlets 22 are connected to the liquid outlet pipe 20 through a solenoid valve 21. The bottom of the liquid collection box 7 on one side of the liquid outlet 22 is provided with a mud outlet 14. The bottom of the liquid collection box 7 outside the mud outlet 14 is equipped with a sealing mechanism 9 that can open and close the mud outlet 14.

[0017] In the embodiments of this utility model, reference is made to Figure 3 As shown, the sealing mechanism 9 includes a sealing plate 15. The two sides of the sealing plate 15 are respectively connected to one end of the first rotating shaft and one end of the second rotating shaft. The other end of the first rotating shaft passes through the side of the first support plate 18 and is connected to the drive end of the first motor 17. The side of the other end of the second rotating shaft is rotatably connected to the side of the first support plate 18. The sides of the first support plate 18 and the second support plate 19 are respectively connected to the two sides of the liquid collection box 7.

[0018] In the embodiments of this utility model, reference is made to Figure 3 As shown, a frame-shaped sealing ring 16 is installed on the top of the sealing plate 15, and the sealing ring 16 is made of rubber.

[0019] It should be noted that the frame 1, filter plate 2, sludge pump 5, and hydraulic device 3 all adopt existing technology. The hydraulic device 3 can apply pressure to the filter plate 2 to filter the sludge input into the filter by the sludge pump 5. During the filtration process, the filtered water produced by the filtration is sent into the collection box 7 through the water outlet and the drain pipe 6. The first slide rail 23 and the second slide rail 26 drive the scraper frame 27 to move back and forth, causing the filtered water in the collection box 7 to shake, preventing the sludge in the filtered water from settling and accumulating in the collection box 7. The scraper frame 27 can also move the sludge that has been accumulated to the upper end of the sludge outlet 14, preventing the accumulated sludge from mechanically blocking the outlet 22 when the filtered water is discharged, thus affecting the discharge of the filtered water. The first motor 17 can drive the rotation of the sealing plate 15, controlling the opening and closing of the sealing plate 15, so that the sludge located at the upper end of the sludge outlet 14 can be discharged when the sealing plate 15 is open.

[0020] By setting up a liquid collection box 7 and placing the lower end of the drain pipe 6 inside the liquid collection box 7, the liquid produced by the plate and frame filter press is prevented from splashing outward in the collection box when it is discharged, thus affecting the environment. The sludge scraper 27, which can move back and forth, can scrape off the sludge adhering to the inner wall of the liquid collection box 7 and shake the liquid inside the liquid collection box 7 to prevent the liquid from easily solidifying and making it difficult to clean later.

[0021] In the embodiments of this utility model, reference is made to Figure 1 As shown, a support plate 10 is provided below the sealing plate 15. The bottom of the support plate 10 is connected to the telescopic end of the telescopic cylinder 11. The fixed end of the telescopic cylinder 11 is connected to the top of the mounting plate 12. The two sides of the mounting plate 12 are respectively connected to the sides of the first support plate 18 and the second support plate 19.

[0022] It should be noted that by setting up a liftable support plate 10, the lower part of the sealing plate 15 can be supported, thereby improving the sealing performance of the sealing plate 15 to the mud outlet 14.

[0023] In the embodiments of this utility model, reference is made to Figure 5 As shown, the mud scraper frame 27 includes a frame body 28, and a U-shaped mud scraper 29 is connected to the side of the frame body 28. The thickness of the mud scraper 29 is less than the width of the mud scraper frame 27.

[0024] It should be noted that by setting up the scraper 29, the inner surface of the liquid collection box 7 can be easily scraped by the frame 28, which can effectively improve the scraping efficiency.

[0025] In the embodiments of this utility model, reference is made to Figure 2 As shown, a frustum-shaped drain cylinder 13 is installed at the bottom of the drain pipe 6, and the bottom dimension of the drain cylinder 13 is larger than the top dimension of the drain cylinder 13.

[0026] It should be noted that: by using the drain pipe 13, which is wider at the bottom and narrower at the top, when the filtered water is sent into the collection box 7, the filtered water can be more dispersed into the interior of the collection box 7 through the drain pipe 13, so that the sludge in the filtered water is dispersed and the efficiency of the filtered water coagulation is reduced.

[0027] In the embodiments of this utility model, reference is made to Figure 1 As shown, a filter screen is installed at the top of the inside of the liquid outlet 22.

[0028] It should be noted that by setting up a filter screen, foreign objects in the filtered water can be filtered out, preventing them from entering the solenoid valve 21 and clogging it, which would affect subsequent use.

[0029] The working principle of the plate and frame filter press for concentrated brine treatment provided by this utility model is as follows: Hydraulic device 3 can apply pressure to filter plate 2 to filter sludge input into the filter via sludge pump 5. During the filtration process, the filtered water produced by filtration is sent into collection box 7 through water outlet and drain pipe 6. Driven by first slide rail 23 and second slide rail 26, scraper frame 27 can move back and forth, causing the filtered water in collection box 7 to shake, preventing sludge in the filtered water from settling and accumulating in collection box 7. The scraper frame 27 can also move the sludge that has been accumulated to the upper end of sludge outlet 14, preventing the accumulated sludge from mechanically blocking the outlet 22 when the filtered water is discharged, thus affecting the discharge of filtered water. By setting first motor 17, the rotation of sealing plate 15 can be achieved by driving first motor 17, controlling the opening and closing of sealing plate 15, so that the sludge located at the upper end of sludge outlet 14 can be discharged when sealing plate 15 is open.

[0030] The circuits and controls involved in this utility model are all existing technologies, and will not be described in detail here.

[0031] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A plate and frame filter press for concentrated brine treatment, characterized in that, include: A frame (1) is provided with a liquid collection box (7) installed at the lower end of the frame (1). Multiple rows of closely attached filter plates (2) are movably connected to the frame (1). A hydraulic device (3) for pressurizing the filter plates (2) is provided on one side of the frame (1). The filter plates (2) have a liquid inlet in the middle and multiple water outlets at the edges. The liquid inlet is connected to the output end of a sludge pump (5) through a liquid inlet pipe (4). The input end of the sludge pump (5) is connected to a sludge pipe. The water outlets are connected to a drain pipe (6) through a water outlet channel. The top of the liquid collection box (7) has a rectangular liquid inlet hole (8). The lower end of the drain pipe (6) passes through the liquid inlet hole (8) and is located inside the liquid collection box (7). The top of the inside of the collection box (7) on both sides of the liquid inlet (8) is provided with a first slide rail (23) and a second slide rail (26). The first slide rail (23) is connected to one end of the top of the sludge scraper frame (27) through a first slider (24). The other end of the top of the sludge scraper frame (27) is connected to the second slide rail (26) through a second slider (25). The bottom of the collection box (7) is provided with multiple liquid outlets (22). The liquid outlets (22) are connected to the liquid outlet pipe (20) through a solenoid valve (21). The bottom of the collection box (7) on one side of the liquid outlet (22) is provided with a mud outlet (14). The bottom of the collection box (7) outside the mud outlet (14) is equipped with a sealing mechanism (9) that can open and close the mud outlet (14).

2. A plate and frame filter press for concentrated brine treatment according to claim 1, characterized in that, The sealing mechanism (9) includes a sealing plate (15). The two sides of the sealing plate (15) are respectively connected to one end of the first rotating shaft and one end of the second rotating shaft. The other end of the first rotating shaft passes through the side of the first support plate (18) and is connected to the drive end of the first motor (17). The side of the other end of the second rotating shaft is rotatably connected to the side of the first support plate (18). The sides of the first support plate (18) and the second support plate (19) are respectively connected to the two sides of the liquid collection box (7).

3. A plate and frame filter press for concentrated brine treatment according to claim 2, characterized in that, A frame-shaped sealing ring (16) is installed on the top of the sealing plate (15), and the sealing ring (16) is made of rubber.

4. A plate and frame filter press for concentrated brine treatment according to claim 3, characterized in that, A support plate (10) is provided below the sealing plate (15). The bottom of the support plate (10) is connected to the telescopic end of the telescopic cylinder (11). The fixed end of the telescopic cylinder (11) is connected to the top of the mounting plate (12). The two sides of the mounting plate (12) are respectively connected to the sides of the first support plate (18) and the second support plate (19).

5. A plate and frame filter press for concentrated brine treatment according to claim 1, characterized in that, The scraper frame (27) includes a frame (28), and a U-shaped scraper (29) is connected to the side of the frame (28). The thickness of the scraper (29) is less than the width of the scraper frame (27).

6. A plate and frame filter press for concentrated brine treatment according to claim 1, characterized in that, The bottom of the drain pipe (6) is equipped with a frustum-shaped drain cylinder (13), and the bottom dimension of the drain cylinder (13) is larger than the top dimension of the drain cylinder (13).

7. A plate and frame filter press for concentrated brine treatment according to claim 1, characterized in that, A filter screen is installed at the top of the inside of the liquid outlet (22).

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