Plate and frame type filter for producing magnesium sulfate heptahydrate

Abstract

The utility model discloses a plate frame type filter for producing magnesium sulfate heptahydrate, and relates to the technical field of preparation of magnesium sulfate heptahydrate. The plate and frame type filter for magnesium sulfate heptahydrate production comprises a supporting frame, longitudinal symmetrical supporting legs are fixedly connected to the two sides of the supporting frame, a hydraulic cylinder is fixedly connected to the supporting frame, the telescopic end of the hydraulic cylinder is fixedly connected with a pressing plate, and filter plates distributed at equal intervals are slidably connected to the supporting frame. After filter pressing is completed and the filter plates are opened, an air outlet frame can be controlled to rotate through extrusion fit of a push rod and a sliding plate, an air outlet branch pipe on the air outlet frame is located between gaps of the filter plates, an air heater operates to convey hot air into a connecting pipe, and then the hot air is discharged through the air outlet frame to dry the filter plates; the drying efficiency of the filter plate can be improved, and the cleaning plate slides forwards to push liquid accumulated in the supporting frame forwards so that the liquid can be discharged conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of magnesium sulfate heptahydrate preparation, in particular to a plate-and-frame filter for magnesium sulfate heptahydrate production. Background Art

[0002] A plate and frame filter, a type of filter press, is a commonly used solid-liquid separation device, particularly suitable for the solid-liquid separation stage of the crystallization liquid in magnesium sulfate heptahydrate production. This filter utilizes a series of alternating filter plates and filter frames to form multiple sealed filter chambers. During operation, a suspension is pumped into the filter chambers, where solid particles are trapped on the filter cloth to form a filter cake, while the liquid flows out through the cloth, achieving separation. However, traditional plate and frame filters typically rely on natural air drying after processing the magnesium sulfate solution, which is inefficient.

[0003] In order to solve the above problems, we propose a plate and frame filter for the production of magnesium sulfate heptahydrate, which can perform rapid drying and improve drying efficiency. Utility Model Content

[0004] In order to overcome the shortcomings of traditional plate and frame filters that rely on natural air drying for drying and have low drying efficiency, the utility model provides a plate and frame filter for magnesium sulfate heptahydrate production, which can perform rapid drying and improve drying efficiency.

[0005] Technical solution: A plate and frame filter for the production of magnesium sulfate heptahydrate, comprising a support frame, longitudinally symmetrical support feet fixedly connected on both sides of the support frame, a hydraulic cylinder fixedly connected to the support frame, a compression plate fixedly connected to the telescopic end of the hydraulic cylinder, and equidistantly distributed filter plates slidingly connected to the support frame, and also comprising longitudinally symmetrical vertical plates, which are fixedly connected to the support frame, and air outlet racks rotatably connected to the vertical plates, and a torsion spring is connected between the air outlet rack and the adjacent vertical plates, a hot air blower fixedly connected to the support frame, and two connecting pipes are connected to the hot air blower, and the connecting pipes are connected to the adjacent air outlet racks, a longitudinally symmetrical mounting plate fixedly connected to the support frame, and the top of the mounting plate is rotatably connected to the adjacent air outlet rack, a rotating assembly for controlling the rotation of the air outlet rack is provided on the compression plate and the support frame, and a cleaning assembly is provided on the support frame, and the cleaning assembly is used to clean the inside of the support frame.

[0006] In addition, it is particularly preferred that the air outlet frame is provided with air outlet branch pipes distributed at equal intervals.

[0007] Furthermore, it is particularly preferred that the connecting pipe is a hose.

[0008] In addition, it is particularly preferred that the rotating assembly includes a longitudinally symmetrical push rod, the longitudinally symmetrical push rod is fixedly connected to the clamping plate, a fixed plate is fixedly connected to the support frame, a longitudinally symmetrical sliding plate is slidably connected to the fixed plate, and a contact ring is fixedly connected to the air outlet frame, and the contact ring is squeezed and fitted with the adjacent sliding plate.

[0009] In addition, it is particularly preferred that one end of the sliding plate close to the push rod is an inclined bending structure, and the sliding plate is squeeze-fitted with the adjacent push rod.

[0010] In addition, it is particularly preferred that the cleaning assembly includes a driving motor, the driving motor is fixedly connected to the supporting frame, a threaded rod is rotatably connected to one side of the supporting frame, the threaded rod is fixedly connected to the output shaft of the driving motor, a guide rod is fixedly connected to the other side of the supporting frame, a cleaning plate is slidably connected to the guide rod, and the cleaning plate is connected to the threaded rod by threads.

[0011] Compared with the prior art, the utility model has the following advantages: after the filtration is completed, the filter plate is opened, and the rotation of the air outlet frame can be controlled by squeezing and cooperating with the push rod and the sliding plate, and the air outlet branch pipe on the air outlet frame is located between the gaps of the filter plates. The hot air blower operates to transport hot air into the connecting pipe, and then discharges it through the air outlet frame to dry the filter plates. Since the air outlet branch pipe is located between the gaps of the filter plates, the drying efficiency of the filter plates can be improved, and the cleaning plate slides forward to push the liquid accumulated inside the support frame forward so that the liquid can be discharged. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0013] Figure 2 It is a three-dimensional structural diagram of the supporting legs, supporting frame, hydraulic cylinder and other components of the utility model.

[0014] Figure 3 It is a three-dimensional structural diagram of the utility model's components such as the air outlet frame, hot air blower and connecting pipe.

[0015] Figure 4 It is a three-dimensional structural diagram of the push rod, fixed plate, sliding plate and other components of the utility model.

[0016] Figure 5 It is a three-dimensional structural diagram of the supporting legs, supporting frame, driving motor and other components of the utility model.

[0017] Figure 6 It is a three-dimensional structural diagram of the driving motor, cleaning plate, threaded rod and guide rod of the utility model.

[0018] Among them, the above-mentioned drawings include the following figure marks: 1. Support foot, 2. Support frame, 3. Hydraulic cylinder, 31. Pressure plate, 4. Filter plate, 5. Air outlet frame, 51. Vertical plate, 52. Torsion spring, 6. Hot air blower, 61. Connecting pipe, 7. Mounting plate, 8. Push rod, 9. Fixed plate, 10. Sliding plate, 11. Contact ring, 12. Drive motor, 13. Cleaning plate, 14. Threaded rod, 15. Guide rod. DETAILED DESCRIPTION

[0019] To make the objectives, technical solutions, and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are merely illustrative and are not intended to limit the scope of the present invention. Furthermore, descriptions of known structures and technologies are omitted in the following description to avoid unnecessary confusion regarding the concepts of the present invention.

[0020] Example 1: Plate and frame filter for producing magnesium sulfate heptahydrate, such as Figures 1-6 As shown, it includes a support foot 1, a support frame 2, a hydraulic cylinder 3, a pressing plate 31, a filter plate 4, an air outlet frame 5, a vertical plate 51, a torsion spring 52, a hot air blower 6, a connecting pipe 61, a mounting plate 7, a rotating assembly and a cleaning assembly. The left and right sides of the support frame 2 are fixedly connected to the front and rear symmetrical support feet 1, the left part of the support frame 2 is fixedly connected to the hydraulic cylinder 3, the telescopic end of the hydraulic cylinder 3 is fixedly connected to the pressing plate 31, a plurality of filter plates 4 are slidably connected to the support frame 2, the left part of the support frame 2 is fixedly connected to the front and rear symmetrical vertical plates 51, the vertical plates 51 are rotatably connected to the air outlet frame 5, and the air outlet frame 5 is provided with a There are evenly spaced air outlet branches, and a torsion spring 52 is connected between the air outlet frame 5 and the adjacent vertical plate 51. A hot air blower 6 is fixedly connected to the upper right part of the support frame 2. Two connecting pipes 61 are connected to the hot air blower 6. The connecting pipe 61 is connected to the right part of the adjacent air outlet frame 5. The connecting pipe 61 is a hose. A front-to-back symmetrical mounting plate 7 is fixedly connected to the right part of the support frame 2. The upper part of the mounting plate 7 is rotatably connected to the adjacent air outlet frame 5. A rotating component for controlling the rotation of the air outlet frame 5 is provided on the clamping plate 31 and the support frame 2. A cleaning component is provided on the support frame 2. The cleaning component is used to clean the inside of the support frame 2.

[0021] When using this device, the staff controls the pressing plate 31 to move to the right through the hydraulic cylinder 3, thereby squeezing the filter plates 4 close together to filter the magnesium sulfate heptahydrate. After the filtration is completed, the staff controls the pressing plate 31 to move to the left and reset through the hydraulic cylinder 3, thereby opening the filter plate 4. When the pressing plate 31 moves to the left, it will drive the air outlet frame 5 to rotate downward through the rotating component. After the air outlet frame 5 rotates downward, the air outlet branch pipe on the air outlet frame 5 is located between the gaps in the filter plates 4 to improve the drying effect. After the air outlet frame 5 rotates, the hot air is transported to the connecting pipe 61 through the operation of the hot air blower 6, and then discharged through the air outlet frame 5 to dry the filter plate 4, and the cleaning component can clean the liquid accumulated in the support frame 2.

[0022] Example 2: Based on Example 1, Figure 1 and Figure 4 As shown, the rotating assembly includes a push rod 8, a fixed plate 9, a sliding plate 10 and a contact ring 11. The upper left part of the clamping plate 31 is fixedly connected to the front-to-back symmetrical push rod 8, the upper left part of the support frame 2 is fixedly connected to the fixed plate 9, and the front-to-back symmetrical sliding plate 10 is slidably connected to the fixed plate 9. The end of the sliding plate 10 close to the push rod 8 is an inclined bending structure, and the sliding plate 10 is squeezed and fitted with the adjacent push rod 8. The left part of the air outlet frame 5 is fixedly connected to the contact ring 11, and the contact ring 11 is squeezed and fitted with the adjacent sliding plate 10.

[0023] When using this device, when the hydraulic cylinder 3 shortens and drives the pressure plate 31 to move to the left, so that the filter plate 4 is opened, the pushing rod 8 will also move to the left. When the pushing rod 8 moves to the left until it contacts the sliding plate 10, the pushing rod 8 will squeeze the sliding plate 10 to slide backward. The sliding plate 10 slides backward and drives the contact ring 11 to rotate. The rotation of the contact ring 11 drives the air outlet frame 5 to rotate, and the torsion spring 52 is deformed. After the air outlet frame 5 rotates, the air outlet branch pipe on the air outlet frame 5 is located between the gaps in the filter plate 4, thereby improving the drying effect of the filter plate 4. When drying is completed, the hydraulic cylinder 3 extends and drives the pressure plate 31 to move to the right, and the pushing rod 8 moves to the right and no longer squeezes the sliding plate 10. Under the action of the torsion spring 52 resetting, the air outlet frame 5 reverses and drives the contact ring 11 to reverse. The reversal of the contact ring 11 drives the sliding plate 10 to slide toward each other and reset.

[0024] like Figure 1 、 Figure 5 and Figure 6 As shown, the cleaning assembly includes a drive motor 12, a cleaning plate 13, a threaded rod 14 and a guide rod 15. The drive motor 12 is fixedly connected to the lower left front part of the support frame 2, the threaded rod 14 is rotatably connected to the left inner part of the support frame 2, the threaded rod 14 is fixedly connected to the output shaft of the drive motor 12, the guide rod 15 is fixedly connected to the right inner part of the support frame 2, the cleaning plate 13 is slidably connected to the guide rod 15, and the cleaning plate 13 is connected to the threaded rod 14 by threads.

[0025] When using this device, the staff starts the drive motor 12, and the output shaft of the drive motor 12 rotates to drive the threaded rod 14 to rotate, and the rotation of the threaded rod 14 drives the cleaning plate 13 to slide forward. The forward sliding of the cleaning plate 13 can push the liquid accumulated inside the support frame 2 forward so that the liquid can be discharged. After the liquid is discharged, the staff controls the output shaft of the drive motor 12 to reverse, thereby driving the threaded rod 14 to reverse and control the cleaning plate 13 to slide backward and reset. When the cleaning is completed, the staff turns off the drive motor 12.

[0026] It should be understood that the embodiments are intended only to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the contents of the present invention, those skilled in the art may make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims.

Claims

1. A plate and frame filter for producing magnesium sulfate heptahydrate, comprising a support frame (2), longitudinally symmetrical support legs (1) fixedly connected to both sides of the support frame (2), a hydraulic cylinder (3) fixedly connected to the support frame (2), a compression plate (31) fixedly connected to the telescopic end of the hydraulic cylinder (3), and filter plates (4) equidistantly distributed on the support frame (2) in a sliding manner, wherein: The invention also includes a longitudinally symmetrical vertical plate (51), the longitudinally symmetrical vertical plate (51) is fixedly connected to the support frame (2), an air outlet frame (5) is rotatably connected to the vertical plate (51), a torsion spring (52) is connected between the air outlet frame (5) and the adjacent vertical plate (51), a hot air blower (6) is fixedly connected to the support frame (2), two connecting pipes (61) are connected to the hot air blower (6), and the connecting pipes (61) are connected to the adjacent air outlet frame (5), a longitudinally symmetrical mounting plate (7) is fixedly connected to the support frame (2), the top end of the mounting plate (7) is rotatably connected to the adjacent air outlet frame (5), a rotating assembly for controlling the rotation of the air outlet frame (5) is provided on the pressing plate (31) and the support frame (2), and a cleaning assembly is provided on the support frame (2), and the cleaning assembly is used to clean the inside of the support frame (2).

2. The plate-and-frame filter for producing magnesium sulfate heptahydrate according to claim 1, wherein: The air outlet frame (5) is provided with air outlet branch pipes distributed at equal intervals.

3. The plate-and-frame filter for producing magnesium sulfate heptahydrate according to claim 2, wherein: The connecting pipe (61) is a hose.

4. The plate-and-frame filter for producing magnesium sulfate heptahydrate according to claim 3, wherein: The rotating assembly includes a longitudinally symmetrical pushing rod (8), the longitudinally symmetrical pushing rod (8) is fixedly connected to the pressing plate (31), a fixing plate (9) is fixedly connected to the supporting frame (2), a longitudinally symmetrical sliding plate (10) is slidably connected to the fixing plate (9), and a contact ring (11) is fixedly connected to the air outlet frame (5), and the contact ring (11) is squeezed and matched with the adjacent sliding plate (10).

5. The plate and frame filter for producing magnesium sulfate heptahydrate according to claim 4, wherein: One end of the sliding plate (10) close to the pushing rod (8) is an inclined bending structure, and the sliding plate (10) is squeezed and matched with the adjacent pushing rod (8).

6. The plate and frame filter for producing magnesium sulfate heptahydrate according to claim 5, wherein: The cleaning assembly comprises a driving motor (12), the driving motor (12) is fixedly connected to the supporting frame (2), a threaded rod (14) is rotatably connected to one side of the supporting frame (2), the threaded rod (14) is fixedly connected to the output shaft of the driving motor (12), a guide rod (15) is fixedly connected to the other side of the supporting frame (2), a cleaning plate (13) is slidably connected to the guide rod (15), and the cleaning plate (13) is connected to the threaded rod (14) through a thread.

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