A magnesium sulfate filtering machine

Abstract

The application relates to the technical field of filtering devices, and discloses a magnesium sulfate filtering machine which comprises a machine body, a top sealing cover and a bottom sealing cover; the machine body is internally hollow to form a filtering cavity; the top sealing cover is arranged on the top of the machine body and used for closing the top of the machine body, and the top sealing cover is provided with a liquid inlet interface which is communicated with the filtering cavity; the bottom sealing cover comprises a bottom cover body and a filtering piece; the bottom cover body is hinged to the machine body and can be used for opening and closing the bottom of the machine body, and the bottom cover body is provided with a first liquid outlet interface; the filtering piece is installed on the bottom cover body, when the bottom cover body closes the machine body, the filtering piece isolates the filtering cavity from the first liquid outlet interface, and liquid can flow to the first liquid outlet interface through the filtering piece. The application can improve the convenience of material taking of the filtering machine.

Description

Technical Field

[0001] This application relates to the technical field of filtration devices, and in particular to a magnesium sulfate filter. Background Technology

[0002] Magnesium sulfate is a common inorganic compound widely used in medicine, agriculture, and chemical industries. Bag filtration is commonly used when filtering magnesium sulfate solutions. A bag filter consists of a body and a filter bag. The body is hollow inside and open at the top, with a cover installed at the top for opening and closing the opening. The filter bag is installed inside the cavity of the body.

[0003] During operation, magnesium sulfate solution enters the filter bag of the machine through the upper inlet. The liquid passes through the filter bag via its micropores, while solid particles remain inside. When the solid content in the filter bag reaches a certain level, the upper cover of the machine must be opened, and the operator must remove the filter bag from the machine. However, during production, the weight of the solids in the filter bag can reach tens of kilograms or even more. This necessitates 2-4 people working together to remove the filter bag, making the process cumbersome and labor-intensive. Summary of the Invention

[0004] To improve the convenience of material handling in the filter, this application provides a magnesium sulfate filter.

[0005] This application provides a magnesium sulfate filter, which adopts the following technical solution:

[0006] A magnesium sulfate filter includes: a body, a top cover, and a bottom cover; the body is hollow to form a filter chamber; the top cover is disposed on the top of the body to close the top of the body, and the top cover has a liquid inlet port communicating with the filter chamber;

[0007] The bottom cover includes a bottom cover body and a filter element; the bottom cover body is hinged to the machine body to allow opening and closing of the bottom of the machine body, and the bottom cover body has a first liquid outlet port; the filter element is installed on the bottom cover body, and when the bottom cover body closes the machine body, the filter element isolates the filter chamber from the first liquid outlet port, and liquid can flow through the filter element to the first liquid outlet port.

[0008] By adopting the above technical solution, the magnesium carbonate solution is filtered through the filter element so that the water can be discharged from the first outlet. After the filtration operation is completed, the filter element containing solid particles can be directly removed by opening the bottom cover, without having to remove the entire filter bag from the machine body. This simplifies the operation process, reduces manpower requirements, and improves work efficiency.

[0009] Optionally, a power component is hinged between the body and the bottom cover. The power component is telescopic, and the base of the power component is hinged to the body. The telescopic end of the power component is hinged to the bottom cover. The telescopic movement of the power component can drive the bottom cover to move and open or close the body.

[0010] By adopting the above technical solution, the bottom cover is automatically opened or closed by the extension and retraction of the power component, thus realizing the automated operation of the filter machine, further reducing the manual burden and improving the convenience and safety of operation.

[0011] Optionally, the filter element includes a filter cloth, a filter plate, and a support frame. The support frame is fixed in the bottom cover and connected to the filter plate. The filter plate is located at the end of the bottom cover away from the first liquid outlet, and the filter plate array has water passage holes. The filter cloth is installed on the side of the filter plate opposite to the first liquid outlet.

[0012] By adopting the above technical solutions, the combination of filter cloth, filter plate and support frame not only ensures the filtration effect, but also enhances the durability and ease of replacement of filter components, thereby improving the maintenance efficiency and filtration quality of the equipment.

[0013] Optionally, the body includes an outer cylinder and an inner cylinder; the bottom cover is hinged to the outer cylinder; the inner cylinder wall allows liquid to pass through, and the inner cylinder is coaxially connected to the outer cylinder; the filter chamber is formed in the inner cylinder, and a drainage chamber is formed between the outer wall of the inner cylinder and the inner wall of the outer cylinder; the outer cylinder wall has a second liquid outlet port communicating with the drainage chamber, and the second liquid outlet port is close to the bottom cover.

[0014] By adopting the above technical solution, the magnesium carbonate solution can be filtered through the inner cylinder, and the filtered water is discharged from the second liquid outlet, thereby improving the filtration efficiency.

[0015] Optionally, the outer cylinder wall has a vacuum interface that communicates with the drainage cavity.

[0016] By adopting the above technical solution and setting a vacuum interface, vacuum equipment can be connected to assist the filtration process, thereby improving filtration efficiency and effectiveness.

[0017] Optionally, the inner cylinder includes a mesh cylinder and a filter cylinder. The mesh cylinder has an array of water-permeable holes, and the filter cylinder is made of a flexible and water-permeable material. The filter cylinder is installed in the mesh cylinder, and the mesh cylinder supports the filter cylinder.

[0018] By adopting the above technical solution, the inner cylinder uses a combination of a mesh cylinder and a filter cylinder, which can not only achieve the filtration effect, but also enhance the structural stability and extend the service life of the equipment by supporting the filter cylinder with the mesh cylinder.

[0019] Optionally, an inwardly extending fixing ring is fixed to one end of the outer cylinder near the bottom cover, the fixing ring being opposite to the end of the mesh cylinder, and the end of the filter cylinder near the bottom cover extending to the space between the fixing ring and the end of the mesh cylinder;

[0020] The outer cylinder has a movable pressure ring at one end near the top cover. The movable pressure ring can be placed coaxially in the outer cylinder or detached from the outer cylinder. The filter cartridge extends away from the movable pressure ring to the end opposite to the end of the mesh cylinder. The top cover is detachably connected to the outer cylinder by fasteners. When the top cover seals the outer cylinder, the top cover presses down on the movable pressure ring, so that the end of the filter cartridge near the top cover is pressed between the movable pressure ring and the end of the mesh cylinder.

[0021] By adopting the above technical solution, the filter cartridge is fixed and sealed through the cooperation of the fixed ring, the movable pressure ring and the top cover, which improves the reliability and safety of filtration. When the top cover is opened, the movable pressure ring is removed first, so that the inner cylinder can be removed from the outer cylinder, which improves the convenience of filtration.

[0022] Optionally, the end of the mesh cylinder near the bottom cover has a protruding edge extending outward, and the end of the filter cylinder near the bottom cover is fitted over the protruding edge and fastened to the outer wall of the mesh cylinder by a locking member.

[0023] By adopting the above technical solution, the filter cartridge is clamped to the outer wall of the mesh cylinder by a locking component, thereby improving the stability of the filter cartridge.

[0024] Optionally, a telescopic member is connected to the top cover. The telescopic end of the telescopic member extends and contracts along the axial direction of the outer cylinder and extends into the top cover. The telescopic end of the telescopic member is connected to a cover coaxial with the mesh cylinder. The cover has a covering cavity with an opening facing the bottom cover.

[0025] The telescopic component can retract the cover into the top cover, and the telescopic component can also move the cover to abut against the fixing ring, so as to isolate the cover cavity from the filter cavity.

[0026] By adopting the above technical solution, the bottom cover can be temporarily opened without interrupting the filtration process through the cooperation of the telescopic component and the cover, which facilitates maintenance or inspection operations and allows solid particles in the cover to be discharged, thus improving the flexibility and practicality of the equipment.

[0027] Optionally, the housing has a clearance opening opposite to the liquid inlet, and a sealing plate that rotates around its own axis to open and close the clearance opening is provided in the housing, and the housing has an adjustment component for driving the sealing plate to rotate.

[0028] The adjustment assembly includes a base sleeve, an adjustment shaft, and a spring. The base sleeve is coaxially fixed to the cover and passes through the cover. The adjustment shaft slides axially within the base sleeve. The spring is located within the base sleeve and connects the adjustment shaft to the inner wall of the base sleeve. The spring provides a spring force to the adjustment shaft relative to the base sleeve, moving it away from the top cover. The sealing plate has a movable protrusion that passes through the base sleeve and abuts against the adjustment shaft. The outer peripheral wall of the adjustment shaft has a movable groove for the movable protrusion to abut against. The movable groove extends obliquely circumferentially along the movable groove.

[0029] When the telescopic component retracts the cover back to the top cover, the adjusting shaft magnetically attaches to the top cover and stretches the spring. At this time, the movable protrusion is located at the end of the moving groove away from the top cover, and the closing plate moves away from the clearance opening. When the telescopic component drives the cover to abut against the fixing ring, the spring drives the adjusting shaft to move, so that the movable protrusion is located at the end of the moving groove close to the top cover, and the closing plate closes the clearance opening.

[0030] By adopting the above technical solution, the cover can be opened during the top sealing process of the cover recycling, thereby improving the convenience of discharging magnesium carbonate solution.

[0031] In summary, this application includes at least one of the following beneficial effects:

[0032] 1. After the filtration process is complete, the bottom cover can be opened to allow solid particles in the machine to fall automatically, simplifying the operation process, reducing the need for manual labor, and thus improving work efficiency. Furthermore, the introduction of a power unit further automates the operation of the filter, further reducing the workload for manual workers.

[0033] 2. The combination of the outer and inner cylinders can improve the filtration efficiency of the solution, and the combination of the fixed ring and the movable pressure ring can realize the quick disassembly and assembly of the inner cylinder, so as to facilitate the replacement of the filter cartridge on the inner cylinder. Attached Figure Description

[0034] Figure 1 This is a structural schematic diagram of Embodiment 1 of this application;

[0035] Figure 2 yes Figure 1 Enlarged structural diagram at point A;

[0036] Figure 3 This is a half-sectional view of Embodiment 1 of this application;

[0037] Figure 4 This is a cross-sectional view of Embodiment 1 of this application;

[0038] Figure 5 yes Figure 3 Enlarged structural diagram at point B;

[0039] Figure 6 yes Figure 3 Enlarged structural diagram at point C;

[0040] Figure 7 This is a cross-sectional view of Embodiment 2 of this application;

[0041] Figure 8 This is a schematic diagram of the structure of the casing in Embodiment 2 of this application;

[0042] Figure 9 yes Figure 7 Enlarged structural diagram at point D;

[0043] Figure 10 This is a schematic diagram of the explosion structure of the sealing plate, adjusting shaft, and cover in Embodiment 2 of this application.

[0044] Explanation of reference numerals in the attached drawings: 1. Top cover; 2. Bottom cover; 201. Bottom cover body; 202. Filter element; 2021. Filter cloth; 2022. Filter plate; 2023. Support frame; 3. Machine body; 301. Outer cylinder; 302. Inner cylinder; 3021. Mesh cylinder; 3022. Filter cylinder; 4. Filter chamber; 5. Liquid inlet port; 6. First liquid outlet port; 7. Power component; 8. Drainage chamber; 9. Second liquid outlet port; 10. Vacuum port; 11. Fixing ring; 12. Movable pressure ring; 13. Fastener; 131. Stud; 132. Lifting eye nut; 14. Protruding flange; 15. Locking component; 16. Telescopic component; 17. Cover. ; 18. Enclosure cavity; 19. Leaving opening; 20. Sealing plate; 21. Adjustment assembly; 211. Base sleeve; 212. Adjusting shaft; 213. Spring; 22. Moving protrusion; 23. Moving groove; 24. First flange; 25. Second flange; 26. First mounting seat; 27. Second mounting seat; 28. Mounting seat; 29. ​​Connecting frame; 30. Screw; 31. Handwheel; 32. Exhaust port; 33. Pressure gauge port; 34. Third flange; 35. Fourth flange; 36. Abutment protrusion; 37. Stepped groove; 38. Connecting rod; 39. Limiting block; 40. Limiting groove; 41. Sliding groove; 42. Ring frame; 43. Brush bristles. Detailed Implementation

[0045] The following is in conjunction with the appendix Figure 1-10 This application will be described in further detail.

[0046] Example 1:

[0047] This application discloses a magnesium sulfate filter. (Refer to...) Figure 1The magnesium sulfate filter includes a body 3, a top cover 1, and a bottom cover 2. The body 3 is a cylindrical shape with its axis extending vertically and its top and bottom ends connected. The interior of the body 3 is hollow, forming a filter chamber 4 for the magnesium sulfate solution to enter. The top cover 1 is detachably connected to the top of the body 3 for opening and closing the top opening of the body 3. The bottom cover 2 is detachably connected to the bottom of the body 3 for opening and closing the bottom opening of the body 3.

[0048] Specifically, the top cover 1 is shaped like a bowl with its opening facing downwards, and a first annular flange 24 is coaxially fitted and fixed to the outer periphery of the bottom of the top cover 1. A second annular flange 25 is coaxially fitted and fixed to the outer periphery of the top of the body 3. The outer diameter of the first flange 24 is the same as the outer diameter of the second flange 25, and the first flange 24 and the second flange 25 are connected by fasteners 13 so that the top cover 1 can be coaxially fixed and covered onto the body 3.

[0049] Reference Figure 1 and Figure 2 In this embodiment, a plurality of first retaining seats 26 are fixedly fixed at uniform intervals along the outer peripheral wall of the first flange 24, and a second retaining seat 27 corresponding to the first retaining seats 26 is fixedly fixed on the outer peripheral wall of the second flange 25. The fastener 13 corresponds to the second retaining seat 27. The fastener 13 includes a stud 131 and a lifting eye nut 132. The stud 131 is hinged to the second retaining seat 27, and the lifting eye nut 132 is threaded onto the stud 131.

[0050] When the top cover 1 is coaxially closed on the top of the body 3, the stud 131 can be rotated to be inserted into the first card seat 26, and the eye nut 132 is threaded to be pressed against the side of the first card seat 26 opposite to the second card seat 27, so as to lock the top cover 1 and the body 3.

[0051] Reference Figure 1 In addition, a mounting base 28 is fixed to the outer wall of the body 3. A connecting frame 29 is rotatably connected to the mounting base 28 via bearings. The connecting frame 29 is inverted L-shaped. The end of the connecting frame 29 away from the mounting base 28 extends to directly above the center of the top cover 1. A vertically extending screw 30 is coaxially fixed to the center of the top cover 1. The screw 30 passes through the connecting frame 29, and a handwheel 31 for abutting against the top of the connecting frame 29 is threaded on the screw 30. After the lock between the top cover 1 and the body 3 is released, the top cover 1 can be moved away from directly above the body 3 by rotating the connecting frame 29, so as to quickly open the top of the body 3.

[0052] The top of the top cover 1 is also provided with a liquid inlet 5, an exhaust port 32, and a pressure gauge port 33. The liquid inlet 5 is used to connect to the material conveying pipe to introduce magnesium sulfate solution into the machine body 3. The exhaust port 32 is used to connect to the exhaust pipe to reduce contamination in the filter chamber 4. The pressure gauge port 33 is used to connect a pressure gauge to detect the pressure in the machine body 3.

[0053] Reference Figure 3 and Figure 4 The bottom cover 2 includes a bottom cover body 201 and a filter element 202. The bottom cover body 201 is shaped like a bowl with its opening facing upwards. A third flange 34 in the shape of a ring is coaxially fitted and fixed on the outer peripheral wall of the bottom end of the body 3. A fourth flange 35 in the shape of a ring is coaxially surrounded and fixed on the outer peripheral wall of the bottom cover body 201 near its opening. The outer diameters of the third flange 34 and the fourth flange 35 are the same, and the third flange 34 and the fourth flange 35 are connected by a fastener 13. The structure of the fastener 13 is the same as that of the fastener 13 between the first flange 24 and the second flange 25, and will not be described in detail here. After the third flange 34 and the fourth flange 35 are locked by the fastener 13, the bottom cover 2 is coaxially connected to the body 3 and closes the bottom opening of the body 3.

[0054] Reference Figure 4 and Figure 5 The filter element 202 includes a filter cloth 2021, a filter plate 2022, and a support frame 2023. The support frame 2023 is fixed to the inner wall of the bottom cover 201 and extends axially along the bottom cover 201. One end of the support frame 2023 away from the inner wall of the bottom cover 201 is fixedly connected to the filter plate 2022. The filter plate 2022 is made of a rigid material, is circular in shape, and has an array of water passage holes. At the same time, the filter plate 2022 is located at the opening of the bottom cover 201 and is coaxial with the bottom cover 201. The filter plate 2022 closes the opening of the bottom cover 201, and the side of the filter plate 2022 away from the bottom cover 201 and the side of the filter plate 2022 facing the bottom cover 201 are connected only through the water passage holes. The filter cloth 2021 is made of soft, permeable fabric. The filter cloth 2021 is circular and surrounded by a ring frame. The filter cloth 2021 covers the side of the filter plate 2022 away from the bottom cover 201, covering all the water passage holes. The ring frame on the filter cloth 2021 is detachably connected to the filter plate 2022 by countersunk bolts.

[0055] The bottom cover 201 has a first liquid outlet 6 on the end away from its own opening, which is connected to the inner cavity of the bottom cover 201. The first liquid outlet 6 is connected to a first liquid outlet pipe (not shown in the figure), which is a flexible tube.

[0056] When the filter is in use, the magnesium sulfate solution enters the filter chamber 4 of the machine body 3. The water in the solution flows through the filter cloth 2021 and the filter plate 2022 in sequence into the bottom cover 201, and then flows out of the filter from the first liquid outlet 6 of the bottom cover 201. When it is necessary to remove the solid particles deposited in the filter, the locking between the third flange 34 and the fourth flange 35 is released, and the bottom cover 201 is removed from the machine body 3, so that the solid particles in the machine body 3 automatically fall downward from the machine body 3. The operator can place a receiving bucket under the machine body 3 to collect the particles.

[0057] Reference Figure 1 and Figure 3 Furthermore, the outer wall of the bottom cover 201 is connected to the outer wall of the fuselage 3 by a hinge, so that the bottom cover 201 is hinged to the fuselage 3, and the hinge axis of the bottom cover 201 is perpendicular to the axis of the fuselage 3. A power component 7 is also hinged between the fuselage 3 and the bottom cover 201. The power component 7 is a component with telescopic power. There are two power components 7 symmetrically distributed along the axis of the fuselage 3. The base of the power component 7 is hinged to the fuselage 3, and the telescopic end of the power component 7 is hinged to the bottom cover 201. The hinge axis of the power component 7 and the hinge axis of the telescopic end are parallel to each other and are both parallel to the hinge axis of the bottom cover 201 and the fuselage 3.

[0058] When the telescopic end of the power component 7 retracts, it drives the bottom cover 201 to rotate upward around the hinge axis to close the bottom of the machine body 3, and at the same time, the bottom cover 201 reaches a position coaxial with the machine body 3. The fastener 13 can lock the third flange 34 and the fourth flange 35 together. When the telescopic end of the power component 7 extends, it drives the bottom cover 201 to rotate downward 90° around the hinge axis to open the bottom of the machine body 3, allowing solid particles at the bottom of the machine body 3 to fall out. The power component 7 can be a cylinder, an electric telescopic rod, etc., and in this embodiment, the power component 7 is preferably a cylinder.

[0059] Reference Figure 3 and Figure 4 Furthermore, for the fuselage 3, the fuselage 3 includes an outer cylinder 301 and an inner cylinder 302. Both the outer cylinder 301 and the inner cylinder 302 are cylindrical. The outer cylinder 301 is made of a rigid, waterproof material. The second flange 25, the third flange 34, and the mounting base 28 are all fixed to the outer cylinder 301. The upper part of the outer peripheral wall of the outer cylinder 301 has a vacuum interface 10 that communicates with the inner cavity of the outer cylinder 301. The vacuum interface 10 is used to connect a vacuum pump to evacuate the outer cylinder 301. The lower part of the outer peripheral wall of the outer cylinder 301 has a second liquid outlet interface 9 that communicates with the inner cavity of the outer cylinder 301. The second liquid outlet interface 9 is connected to a second liquid outlet pipe (not shown in the figure), and the first liquid outlet pipe and the second liquid outlet pipe are connected to the same main pipe (not shown in the figure).

[0060] Reference Figure 4 and Figure 5The inner cylinder 302 includes a mesh cylinder 3021 and a filter cylinder 3022. The mesh cylinder 3021 is a cylindrical shape made of a rigid mesh material with both ends connected, so that water-permeable holes (not shown in the figure) are arrayed on the mesh cylinder 3021 for water flow. The diameter of the mesh cylinder 3021 is smaller than the diameter of the outer cylinder 301. The mesh cylinder 3021 is coaxially installed in the outer cylinder 301. A drainage cavity 8 for accumulating water flow is formed between the outer wall of the mesh cylinder 3021 and the inner wall of the outer cylinder 301. The drainage cavity 8 is connected to the second liquid outlet 9. The filter cylinder 3022 is a cylindrical shape made of a soft and permeable fabric. The filter cylinder 3022 is placed in the mesh cylinder 3021, and a filter cavity 4 is formed in the filter cylinder 3022.

[0061] Therefore, while the magnesium sulfate solution is filtered through the filter cloth 2021 and the filter plate 2022, it is also filtered through the filter cylinder 3022 and the mesh cylinder 3021. The water flowing through the filter cylinder 3022 and the mesh cylinder 3021 enters the drainage chamber 8 and is discharged from the second liquid outlet 9, so as to improve the drainage efficiency of the filter.

[0062] Reference Figure 4 and Figure 5 Furthermore, to facilitate the replacement of the filter cartridge 3022, the diameter of the filter cartridge 3022 is slightly larger than that of the mesh cartridge 3021, and part of the filter cartridge 3022 is pleated and placed inside the mesh cartridge 3021. More importantly, a circular fixing ring 11 is coaxially fixed to the inner wall of the third flange 34, and a circular protrusion 14 extends outward from the outer circumference of the bottom end of the mesh cartridge 3021. The protrusion 14 is integrally formed with the mesh cartridge 3021 and is coaxially arranged. The outer diameter of the protrusion 14 is larger than the inner diameter of the fixing ring 11. The bottom of the filter cartridge 3022 extends downward beyond the bottom of the mesh cartridge 3021 and folds outward to fit the protrusion 14, so that when the mesh cartridge 3021 is placed in the outer cylinder 301, the bottom of the filter cartridge 3022 is pressed between the protrusion 14 and the fixing ring 11.

[0063] Reference Figure 4 and Figure 6 Furthermore, the top outer periphery of the screen cylinder 3021 extends outward with a ring-shaped abutment protrusion 36. The second flange 25 has a stepped groove 37 for the abutment protrusion 36 to be inserted coaxially downward, and the second flange 25 is fitted with a movable pressure ring 12. The movable pressure ring 12 is ring-shaped, and the outer diameter of the movable pressure ring 12 is the same as the outer diameter of the abutment protrusion 36, while the inner diameter of the movable pressure ring 12 is larger than the inner diameter of the abutment protrusion 36. The top of the filter cylinder 3022 extends upward beyond the top of the screen cylinder 3021 and folds outward to abut against the upper surface of the abutment protrusion 36.

[0064] When the convex ring and the fixed ring 11 press the bottom of the filter cartridge 3022, the abutting convex 36 is coaxially placed into the stepped groove 37, and the movable pressure ring 12 can also be coaxially placed into the stepped groove 37, so that the top of the filter cartridge 3022 is pressed between the movable pressure ring 12 and the abutting convex 36. When the first flange 24 and the second flange 25 are locked together, the bottom surface of the first flange 24 is pressed against the top surface of the movable pressure ring 12, so that the top of the filter cartridge 3022 is pressed tightly, thereby realizing the installation of the filter cartridge 3022.

[0065] The inner diameter of the second flange 25 is larger than the outer diameter of the flange 14. When replacing the filter cartridge 3022, first remove the top cover 1 from the outer cylinder 301, then remove the movable pressure ring 12 upwards, and then remove the screen cylinder 3021 upwards from the outer cylinder 301 so that the filter cartridge 3022 can be replaced.

[0066] Reference Figure 5 Furthermore, the mesh cylinder 3021 is equipped with a locking member 15 to lock the filter cylinder 3022, whose bottom is folded onto the outer wall of the mesh cylinder 3021. The locking member 15 surrounds the filter cylinder 3022 and clamps it tightly to the outer wall of the mesh cylinder 3021, so that when the mesh cylinder 3021 moves in the outer cylinder 301, the bottom of the filter cylinder 3022 is not easily dislodged from the bottom of the mesh cylinder 3021, thus improving the stability of the filter cylinder 3022. The locking member 15 can be a rope, an elastic rope that works with the adjustment port, or a clamp. In this embodiment, the locking member 15 is preferably a rope.

[0067] The implementation principle of a magnesium sulfate filter according to an embodiment of this application is as follows: magnesium sulfate solution is sent to filter cartridge 3022 from inlet port 5. The liquid in the solution passes through filter cloth 2021 and filter plate 2022 and flows out from the first outlet. At the same time, the liquid in the solution passes through filter cartridge 3022 and mesh cylinder 3021 and flows out from the second outlet. Solid particles in the solution are deposited on filter cloth 2021 and in filter cartridge 3022.

[0068] When material needs to be removed, the locking between the third flange 34 and the fourth flange 35 is released, and the telescopic end of the power component 7 extends to drive the bottom cover 2 to rotate downward, thereby opening the bottom of the outer cylinder 301 and allowing the solids in the filter cylinder 3022 to fall downward.

[0069] Example 2:

[0070] The difference between this embodiment and Embodiment 1 is that this embodiment further includes a telescopic member 16 and a cover 17. (Refer to...) Figure 7 The telescopic component 16 is a multi-stage electric telescopic rod. The seat of the telescopic component 16 is installed on the top cover 1, and the telescopic end of the telescopic component 16 extends into the cavity of the top cover 1 and is connected to the cover 17 through the connecting rod 38. The telescopic end of the telescopic component 16 extends and retracts along the axial direction of the parallel outer cylinder 301.

[0071] Reference Figure 7 and Figure 8 The cover 17 has an arc-shaped bowl-shaped structure and is coaxially arranged with the outer cylinder 301. The cover 17 has a covering cavity 18 with an opening facing the bottom cover 2. The cross-sectional dimension of the cover 17 is largest at the arc opening, and the maximum outer diameter of the cover 17 is smaller than the inner diameter of the mesh cylinder 3021 and the filter cylinder 3022. In this embodiment, the inner diameter of the inner ring of the fixing ring 11 gradually decreases along the direction away from the top cover 1 to form a slope, and the minimum inner diameter of the fixing ring 11 is smaller than the maximum outer diameter of the cover 17.

[0072] When the telescopic end of the telescopic component 16 extends, it can move the cover 17 towards the bottom cover 2 until it abuts against the slope of the fixing ring 11. At this time, the cover 17 surrounds some solid particles in the covering cavity 18, and the cover 17 isolates the covering cavity 18 and below from the filter cavity 4 by abutting against the fixing ring 11. At this time, the bottom cover 2 is opened, and the solid particles in the cover 17 can fall downwards. The solution in the upper filter cavity 4 can be continuously fed from the cover 17 and continue to be filtered through the mesh cylinder 3021 and the filter cylinder 3022. The filtered liquid flows out from the second liquid outlet 9, so that the filter can be fed without stopping while cleaning the solid particles in the filter. In addition, there is a liquid level sensor (not shown in the figure) on the inner wall of the cover 17 to detect the liquid level in the cover 17, so that the bottom cover 2 can be opened after the solution in the cover 17 has been filtered.

[0073] When the telescopic end of the telescopic component 16 is retracted, it drives the cover 17 to be completely retracted into the top cover 1. At this time, when the top cover 1 is rotated away from the outer cylinder 301, it can drive the cover 17 to rotate away together. And when the cover 17 moves up and down in the filter cylinder 3022, a gap is left between the cover 17 and the filter cylinder 3022 for the magnesium sulfate solution to pass through.

[0074] Reference Figure 7 and Figure 8 Furthermore, the cover 17 has a relief opening 19 opposite to the liquid inlet 5. The relief opening 19 has a fan-shaped structure coaxial with the cover 17, so that when the relief opening 19 is open, the solution entering from the liquid inlet can pass through the internal filter chamber 4 of the relief opening 19. In addition, a sealing plate 20 is rotatably mounted on the cover 17 around its own axis. The sealing plate 20 has a fan-shaped structure with a central angle larger than that of the relief opening 19. When the sealing plate 20 rotates counterclockwise, it closes the relief opening 19. When the sealing plate 20 rotates clockwise, it moves away from the relief opening 19 and is stored in the cover 17 to open the relief opening 19.

[0075] Reference Figure 7 and Figure 9To adjust the position of the sealing plate 20, the cover 17 has an adjusting assembly 21, which includes a base sleeve 211, an adjusting shaft 212, and a spring 213. The base sleeve 211 is coaxially fixed to one end of the cover 17 near the top cover 1 and passes through the shell of the cover 17. The base sleeve 211 is hollow inside and has an upward-facing opening. The adjusting shaft 212 is a circular shaft and slides coaxially within the base sleeve 211. It should be noted that a limiting block 39 is fixed on the outer wall of the adjusting shaft 212, and a limiting groove 40 is provided on the inner wall of the base sleeve 211 to allow the limiting block 39 to move along the axial direction parallel to the base sleeve 211, so as to guide the movement direction of the adjusting shaft 212 within the base sleeve 211. Spring 213 is located in base sleeve 211, and the two ends of spring 213 are respectively connected to the bottom surface of adjusting shaft 212 and the inner bottom wall of base sleeve 211. The elastic force of spring 213 gives the adjusting shaft 212 an elastic force to move closer to the inner bottom wall of base sleeve 211.

[0076] Reference Figure 7 , Figure 8 and Figure 10 The portion of the closed plate 20 near the base sleeve 211 is fixed with a movable protrusion 22 in the shape of a convex column. The movable protrusion 22 passes through the base sleeve 211 and abuts into the adjusting shaft 212. The base sleeve 211 is provided with a sliding groove 41 along its circumference for the movable protrusion 22 to pass through and slide. The outer wall of the adjusting shaft 212 is provided with a movable groove 23 extending obliquely along its circumference for the movable protrusion 22 to abut and slide. The bottom end of the screw 30 on the top cover 1 is opposite to the adjusting shaft 212 and has a magnet for magnetically attracting the adjusting shaft 212.

[0077] When the telescopic end of the telescopic component 16 is retracted, the adjusting shaft 212 is housed in the cavity of the top cover 1. The adjusting shaft 212 is attracted by the magnet on the screw 30 and moves upward against the tension of the spring 213 until it is magnetically attracted to the magnet. At this time, the moving protrusion 22 abuts against the end of the moving groove 23 away from the top cover 1, and the closing plate 20 is retracted into the cover 17 to open the relief opening 19. When the telescopic end of the telescopic component 16 is extended, the cover 17 moves away from the top cover 1, so that the adjusting shaft 212 gradually loses the attraction of the magnet. The adjusting shaft 212 is pulled by the spring 213 and moves towards the inner bottom wall of the base sleeve 211, thereby driving the moving protrusion 22 to move circumferentially around the adjusting shaft 212 in the moving groove 23 and the sliding groove 41. This causes the closing plate 20 to rotate towards the relief opening 19 until the relief opening 19 is closed, so that the cover 17 abuts against the fixing ring 11 in the closed state of the relief opening 19.

[0078] Reference Figure 7 and Figure 8Furthermore, a ring frame 42 is connected to the outer wall of the end of the cover 17 near the top cover 1. The ring frame 42 is hollow, and the outermost layer of the ring frame 42 is an annular shape with an outer diameter smaller than the inner diameter of the filter cartridge 3022 but larger than the outer diameter of the cover 17. The outermost layer of the ring frame 42 is coaxial with the cover 17 and has soft bristles 43 installed along its circumference. When the cover 17 moves in the filter cartridge 3022, the bristles 43 on the ring frame 42 abut against the inner wall of the filter cartridge 3022 to clean the filter cartridge 3022, and the hollow part on the ring frame 42 allows magnesium carbonate solution to pass through.

[0079] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A magnesium sulfate filter, characterized in that, include: Top cover (1), bottom cover (2) and body (3); the body (3) is hollow inside to form a filter chamber (4); the top cover (1) is located on the top of the body (3) to close the top of the body (3), and the top cover (1) has a liquid inlet (5) communicating with the filter chamber (4). The bottom cover (2) includes a bottom cover body (201) and a filter element (202); the bottom cover body (201) is hinged to the body (3) so that the bottom of the body (3) can be opened and closed, and the bottom cover body (201) has a first liquid outlet port (6); the filter element (202) is installed on the bottom cover body (201), and when the bottom cover body (201) closes the body (3), the filter element (202) isolates the filter chamber (4) from the first liquid outlet port (6), and the liquid can flow through the filter element (202) to the first liquid outlet port (6); The body (3) includes an outer cylinder (301) and an inner cylinder (302). The inner cylinder (302) has a wall for liquid to pass through. The filter chamber (4) is formed in the inner cylinder (302). A drain chamber (8) is formed between the outer wall of the inner cylinder (302) and the inner wall of the outer cylinder (301). The outer cylinder (301) has a second liquid outlet (9) that communicates with the drain chamber (8). The inner cylinder (302) includes a mesh cylinder (3021) and a filter cylinder (3022). The outer cylinder (301) has an inwardly extending fixing ring (11) fixed at one end near the bottom cover (2). The fixing ring (11) is opposite to the end of the mesh cylinder (3021). The top cover (1) is connected to a telescopic member (16). The telescopic end of the telescopic member (16) extends and contracts along the axial direction of the outer cylinder (301) and extends into the top cover (1). The telescopic end of the telescopic member (16) is connected to a cover (17) coaxial with the mesh cylinder (3021). The cover (17) has a covering cavity (18) with an opening facing the bottom cover (2). The cross-sectional dimension of the cover (17) is the largest at the arc opening, and the maximum outer diameter of the cover (17) is smaller than the inner diameter of the mesh cylinder (3021) and the filter cylinder (3022). The inner diameter of the inner ring of the fixing ring (11) gradually decreases in the direction away from the top cover (1) to form a slope, and the minimum inner diameter of the fixing ring (11) is smaller than the maximum outer diameter of the cover (17).

2. A magnesium sulfate filter according to claim 1, characterized in that: A power component (7) is hinged between the body (3) and the bottom cover (201). The power component (7) is capable of extension and retraction, and the base of the power component (7) is hinged to the body (3). The extension and retraction end of the power component (7) is hinged to the bottom cover (201). The extension and retraction of the power component (7) can drive the bottom cover (201) to move and open and close the body (3).

3. A magnesium sulfate filter according to claim 1, characterized in that: The filter element (202) includes a filter cloth (2021), a filter plate (2022), and a support frame (2023). The support frame (2023) is fixed in the bottom cover (201) and connected to the filter plate (2022). The filter plate (2022) is located at the end of the bottom cover (201) away from the first liquid outlet (6), and the filter plate (2022) array has water passage holes. The filter cloth (2021) is installed on the side of the filter plate (2022) facing away from the first liquid outlet (6).

4. A magnesium sulfate filter according to claim 1, characterized in that: The bottom cover (201) is hinged to the outer cylinder (301), and the inner cylinder (302) is coaxially connected to the outer cylinder (301). The second liquid outlet (9) is close to the bottom cover (2).

5. A magnesium sulfate filter according to claim 4, characterized in that: The outer cylinder (301) has a vacuum interface (10) on its wall that communicates with the drainage cavity (8).

6. A magnesium sulfate filter according to claim 4, characterized in that: The mesh cylinder (3021) has an array of water-permeable holes. The filter cylinder (3022) is made of a flexible and water-permeable material and is installed in the mesh cylinder (3021). The mesh cylinder (3021) supports the filter cylinder (3022).

7. A magnesium sulfate filter according to claim 6, characterized in that: The filter cartridge (3022) extends from one end near the bottom cover (2) to between the fixing ring (11) and the end of the mesh cylinder (3021); The outer cylinder (301) has a movable pressure ring (12) at one end near the top cover (1). The movable pressure ring (12) can be placed coaxially in the outer cylinder (301) or detached from the outer cylinder (301). The filter cylinder (3022) extends away from the movable pressure ring (12) to the end opposite to the end of the mesh cylinder (3021). The top cover (1) is detachably connected to the outer cylinder (301) by fasteners (13). When the top cover (1) seals the outer cylinder (301), the top cover (1) presses down on the movable pressure ring (12), so that the end of the filter cylinder (3022) near the top cover (1) is pressed between the movable pressure ring (12) and the end of the mesh cylinder (3021).

8. A magnesium sulfate filter according to claim 7, characterized in that: The end of the mesh cylinder (3021) near the bottom cover (2) extends outward with a raised edge (14), and the end of the filter cylinder (3022) near the bottom cover (2) is fitted over the raised edge (14) and is fastened to the outer wall of the mesh cylinder (3021) by a locking member (15).

9. A magnesium sulfate filter according to claim 7, characterized in that: The telescopic component (16) can drive the cover (17) to retract into the top cover (1), and the telescopic component (16) can also drive the cover (17) to move to abut against the fixing ring (11) so that the covering cavity (18) is isolated from the filter cavity (4).

10. A magnesium sulfate filter according to claim 9, characterized in that: The cover (17) has a relief port (19) opposite to the liquid inlet (5), and the cover (17) has a sealing plate (20) that rotates around its own axis to open and close the relief port (19), and the cover (17) has an adjustment component (21) for driving the sealing plate (20) to rotate. The adjustment assembly (21) includes a base sleeve (211), an adjustment shaft (212), and a spring (213). The base sleeve (211) is coaxially fixed to the cover (17) and passes through the cover (17). The adjustment shaft (212) slides axially within the base sleeve (211) along the base sleeve (211). The spring (213) is located within the base sleeve (211) and connects the adjustment shaft (212) and the inner wall of the base sleeve (211). The spring (213) provides elastic force to the adjusting shaft (212) relative to the base sleeve (211) in a direction away from the top cover (1); the closing plate (20) has a movable protrusion (22) that passes through the base sleeve (211) and abuts against the adjusting shaft (212); the outer peripheral wall of the adjusting shaft (212) is provided with a movable groove (23) for the movable protrusion (22) to abut against; the movable groove (23) extends obliquely along the circumferential direction of the movable groove (23); When the telescopic component (16) drives the cover (17) to retract back to the top cover (1), the adjusting shaft (212) is magnetically attracted to the top cover (1) and stretches the spring (213). At this time, the moving protrusion (22) is located at the end of the moving groove (23) away from the top cover (1), and the closing plate (20) moves away from the clearance opening (19). When the telescopic component (16) drives the cover (17) to abut against the fixing ring (11), the spring (213) drives the adjusting shaft (212) to move, so that the moving protrusion (22) is located at the end of the moving groove (23) close to the top cover (1), and the closing plate (20) closes the clearance opening (19).

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