Separating device for desulfurized gypsum slurry

Abstract

The invention belongs to the technical field of desulfurization gypsum slurry filtering, and particularly relates to a desulfurization gypsum slurry separating device which comprises a filtering barrel, a foldable filtering assembly installed in the filtering barrel, a small-aperture filtering plate fixedly installed in the filtering barrel, an air cylinder installed on the filtering barrel, and a connecting rod connected to the output end of the air cylinder. The hollow plate and the solid plate are connected to the connecting rod, the filtering assembly is connected with the liquid pumping assembly through the telescopic assembly, and the liquid pumping assembly comprises a plug plate and a through groove formed in the plug plate. When an air cylinder drives a connecting rod to move downwards, a solid plate drives a plug plate to move downwards synchronously, the solid plate blocks a penetrating groove in the plug plate, and along with downward movement of the plug plate, one side of the plug plate pumps gypsum slurry, so that the gypsum slurry passes through a filtering assembly in an accelerated manner; meanwhile, the slurry after large-particle gypsum crystals are filtered out is pressed by the other side of the plug plate to pass through the small-aperture filter plate, so that the slurry is accelerated to pass through the small-aperture filter plate, and the filtering speed of the small-particle gypsum crystals in the slurry is increased.

Description

Technical Field

[0001] The invention belongs to the technical field of desulfurized gypsum slurry filtration, and in particular relates to a desulfurized gypsum slurry separation device. Background Art

[0002] The most common existing desulfurization technology is limestone desulfurization technology, in which limestone powder is added with water to form a slurry, which is pumped into an absorption tower as an absorbent to fully contact and mix with the flue gas. The sulfur dioxide in the flue gas reacts with the calcium carbonate in the slurry and the air blown in from the bottom of the tower to form calcium sulfate. When the calcium sulfate reaches a certain saturation, it crystallizes to form dihydrate gypsum.

[0003] At present, in the technology of treating gypsum slurry, the filtration method is usually used to separate the gypsum crystals in the gypsum slurry. Since the particle size of gypsum crystals varies, usually 1-250 microns, and the difference between large-particle gypsum crystals and small-particle gypsum crystals can be up to 200 microns, if the filtration method is used to separate the gypsum in the gypsum slurry, it is necessary to filter the large and small particles of gypsum crystals separately through a double-layer filter to ensure the filtering effect. For example, the invention patent with publication number CN114950003A, but this filtering method has the following defects; First, as the number of filters increases, the resistance of the filters to the gypsum slurry increases, which in turn leads to a decrease in filtration efficiency.

[0004] Second, since the particle sizes of gypsum crystals are different, the uniformity of the gypsum crystals is poor, which affects the quality of the separated solid gypsum. Summary of the invention

[0005] The purpose of the present invention is to provide a separation device for desulfurized gypsum slurry in view of the shortcomings of the prior art, so as to solve the technical problems in the prior art.

[0006] The purpose of the present invention can be achieved through the following technical scheme: a separation device for desulfurized gypsum slurry, which includes a filter barrel, a liquid inlet is installed on the top of the filter barrel, a liquid discharge port is installed on the bottom, a foldable filter assembly is installed in the filter barrel, a small-aperture filter plate is fixedly installed in the filter barrel, a cylinder is installed on the filter barrel, the output end of the cylinder is connected to a connecting rod, and a hollow plate and a solid plate are respectively connected to the connecting rod, the filter assembly is connected to a liquid pumping assembly through a telescopic assembly, the liquid pumping assembly is located between the hollow plate and the solid plate, and the liquid pumping assembly includes a plug plate and a through groove provided on the plug plate; when the cylinder drives the connecting rod to move downward, the solid plate on the connecting rod drives the plug plate to move downward, and at this time the through groove on the plug plate is in a blocked state; when the cylinder drives the connecting rod to move upward, the hollow plate on the connecting rod pushes the plug plate to move upward, and at this time the through groove on the plug plate is in a non-blocked state.

[0007] As a further optimization or improvement of this solution, a slide is installed on the filter barrel, and the filter assembly includes a large-aperture filter plate and a rotating shaft. The large-aperture filter plates are rotatably installed on both sides of the rotating shaft, and a slide rod is installed on the large-aperture filter plate, and the slide rod slides inside the slide.

[0008] As a further optimization or improvement of the present solution, the telescopic assembly includes a telescopic sleeve and a telescopic rod, the telescopic sleeve and the telescopic rod are slidably matched, the telescopic sleeve is connected to the liquid pumping assembly, a ring is installed on the telescopic rod, and the ring is sleeved on the rotating shaft.

[0009] As a further optimization or improvement of the present solution, the telescopic assembly further includes an electromagnetic suction cup and a suction block. The electromagnetic suction cup is installed in the telescopic sleeve, and the suction block is installed on the telescopic rod. The electromagnetic suction cup absorbs the suction block.

[0010] As a further optimization or improvement of this solution, a plate groove is provided on the large-aperture filter plate, a second sieve plate is slidably installed in the plate groove, an elliptical rod is installed on the rotating shaft, an elliptical groove is provided on the elliptical rod, a slider is installed on the second sieve plate, and the slider is slidably installed in the elliptical groove.

[0011] As a further optimization or improvement of the present solution, a telescopic head is installed in the slide, and the telescopic head abuts against the slide rod.

[0012] As a further optimization or improvement of this solution, a base is installed at the bottom of the filter barrel, and a discharge port is installed on the side wall of the filter barrel. One end of the discharge port faces the small-aperture filter plate, and the other end is connected to the pump body.

[0013] As a further optimization or improvement of the present scheme, annular rubber pads are installed on the side walls of the plug plate, the plug plate contacts the inner wall of the filter barrel through the annular rubber pads, sealing pads are installed on the top and bottom of the plug plate, the solid plate and the hollow plate contact the plug plate through the sealing pads, annular scrapers are installed on the side walls of the plug plate, the annular rubber pads are located between the annular scrapers, and the annular scrapers fit the inner wall of the filter barrel.

[0014] Beneficial effects of the present invention: (1) When the cylinder in the present invention drives the connecting rod to move downward, the solid plate drives the plug plate to move downward synchronously, so that the solid plate blocks the through groove on the plug plate. As the plug plate moves downward, one side of the plug plate extracts the gypsum slurry, so that the gypsum slurry is accelerated to pass through the filter assembly. At the same time, the other side of the plug plate presses the slurry after filtering out the large-particle gypsum crystals to pass through the small-aperture filter plate, thereby accelerating the slurry to pass through the small-aperture filter plate and improving the filtration rate of the small-particle gypsum crystals in the slurry.

[0015] (2) When the cylinder in the present invention drives the plug plate to move downward, the plug plate drives the rotating shaft to move downward through the telescopic assembly, and the downward movement of the rotating shaft drives the large-aperture filter plate to fold. At the same time, the slide rod slides in the slide table and disengages from the limit of the telescopic head. As the large-aperture filter plate is folded, the large-particle gypsum crystals on the large-aperture filter plate are squeezed by the large-aperture filter plate, and the large-particle gypsum crystals are crushed by the large-aperture filter plate. The crushed large-particle gypsum crystals can pass through the large-aperture filter plate and fall on the small-aperture filter plate, and are collected together with the small-particle gypsum crystals on the small-aperture filter plate, thereby improving the uniformity of the gypsum crystals and further improving the quality of gypsum.

[0016] Specifically, during the folding process of the large-aperture filter plate, the slider on the sieve plate two slides in the elliptical groove. As the large-aperture filter plate is folded, the sieve plate two slides inside the plate groove, so that the filter holes on the sieve plate two are staggered with the filter holes on the large-aperture filter plate. The sieve plate two blocks the filter holes on the large-aperture filter plate to prevent the large-particle gypsum crystals from impacting the filter holes of the large-aperture filter plate under the action of the large-aperture filter plate being squeezed, thereby causing the filter holes of the large-aperture filter plate to deform. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below in conjunction with the accompanying drawings.

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 It is a schematic diagram of the internal structure of the present invention.

[0020] Figure 3 Schematic diagram of the installation position of the filter assembly and small-pore filter plate.

[0021] Figure 4 It is an exploded view of the internal structure of the present invention.

[0022] Figure 5 It is a schematic diagram of the connection structure between the filtering component and the liquid extraction component.

[0023] Figure 6 It is a schematic diagram of the overall structure of the filter component.

[0024] Figure 7 This is the matching diagram of sieve plate 2 and large-aperture filter plate.

[0025] Figure 8 This is the coordination diagram of the slide bar and the slide table.

[0026] Fig. 9 It is a schematic diagram of the internal structure of the telescopic sleeve.

[0027] The following are marked in the figure: 1. filter barrel; 2. slide; 3. base; 4. cylinder; 5. liquid inlet; 6. discharge port; 7. discharge port; 8. filter assembly; 801. large-aperture filter plate; 802. rotating shaft; 803. elliptical rod; 804. slide rod; 805. sieve plate 2; 806. elliptical groove; 807. slide block; 808. plate groove; 9. liquid extraction assembly; 901. plug plate; 902. annular rubber pad; 903. annular scraper; 904. sealing pad; 905. through groove; 10. small-aperture filter plate; 11. connecting rod; 12. hollow plate; 13. solid plate; 14. telescopic assembly; 1401. telescopic sleeve; 1402. telescopic rod; 1403. collar; 1404. electromagnetic suction cup; 1405. suction block; 15. telescopic head. 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0029] See also Figure 1-Figure 8 A desulfurized gypsum slurry separation device comprises a filter barrel 1, a liquid inlet 5 is installed on the top of the filter barrel 1, a liquid discharge port 7 is installed on the bottom, a foldable filter assembly 8 is installed in the filter barrel 1, a small-aperture filter plate 10 is fixedly installed in the filter barrel 1, a cylinder 4 is installed on the filter barrel 1, the output end of the cylinder 4 is connected to a connecting rod 11, and the connecting rod 11 is respectively connected to a hollow plate 12 and a solid plate 13, the filter assembly 8 is connected to a liquid extraction assembly 9 through a telescopic assembly 14, and the liquid extraction assembly 9 is located at the hollow Between the hollow plate 12 and the solid plate 13, the pumping assembly 9 includes a plug plate 901 and a through groove 905 provided on the plug plate 901; when the cylinder 4 drives the connecting rod 11 to move downward, the solid plate 13 on the connecting rod 11 drives the plug plate 901 to move downward, and at this time, the through groove 905 on the plug plate 901 is in a blocked state; when the cylinder 4 drives the connecting rod 11 to move upward, the hollow plate 12 on the connecting rod 11 pushes the plug plate 901 to move upward, and at this time, the through groove 905 on the plug plate 901 is in a non-blocked state.

[0030] Specifically, an annular rubber pad 902 is installed on the side wall of the plug plate 901, and the plug plate 901 contacts the inner wall of the filter barrel 1 through the annular rubber pad 902. Sealing gaskets 904 are installed on the top and bottom of the plug plate 901. The solid plate 13 and the hollow plate 12 contact the plug plate 901 through the sealing gasket 904. An annular scraper 903 is installed on the side wall of the plug plate 901, and the annular rubber pad 902 is located between the annular scrapers 903, and the annular scrapers 903 are attached to the inner wall of the filter barrel 1.

[0031] It should be noted that when the plug plate 901 moves, the annular scraper 903 scrapes off the gypsum particles near the annular rubber pad 902 to prevent the gypsum particles from wearing the annular rubber pad 902 and improve the service life of the seal. The main function of the cylinder 4 is to drive the connecting rod 11 to rise and fall, which can be replaced by a screw lifting assembly.

[0032] It should be noted that the filter holes on the filter assembly 8 have a larger pore size than the filter holes on the small-pore filter plate 10. The filter assembly 8 is used to separate large-particle gypsum crystals in the gypsum slurry, and the small-pore filter plate 10 is used to separate small-particle gypsum crystals in the gypsum slurry.

[0033] When in use, the liquid inlet 5 is connected to the gypsum slurry, and the gypsum slurry is injected into the filter barrel 1 through the liquid inlet 5. When the gypsum slurry passes through the filter assembly 8, the filter assembly 8 filters the large-particle gypsum crystals in the slurry. The cylinder 4 is started, and the cylinder 4 drives the connecting rod 11 and the solid plate 13 to move downward. During the downward movement of the solid plate 13, the solid plate 13 drives the plug plate 901 to move downward synchronously, so that the solid plate 13 blocks the through groove 905 on the plug plate 901. As the solid plate 13 drives the plug plate 901 to move downward synchronously, the plug plate 901 extracts the gypsum slurry, accelerates the gypsum slurry to pass through the filter assembly 8, and improves the filtering speed of the large-particle gypsum crystals in the slurry; When the cylinder 4 drives the connecting rod 11 to move upward, the solid plate 13 first separates from the plug plate 901, and then the hollow plate 12 contacts the plug plate 901 and drives the plug plate 901 to move upward synchronously. During the process of the plug plate 901 moving upward, the through groove 905 is connected with the hollow plate 12, so that the plug plate 901 is in a non-blocking state. As the plug plate 901 moves upward, the plug plate 901 gradually returns to its original position. When the cylinder 4 drives the connecting rod 11 downward again, Figure 2 The solid plate 13 drives the plug plate 901 to move downward synchronously, so that the solid plate 13 blocks the through groove 905 on the plug plate 901. As the plug plate 901 moves downward, one side of the plug plate 901 extracts gypsum slurry, so that the gypsum slurry is accelerated to pass through the filter assembly 8. At the same time, the other side of the plug plate 901 presses the slurry after filtering out large-particle gypsum crystals to pass through the small-aperture filter plate 10, thereby accelerating the slurry to pass through the small-aperture filter plate 10 and improving the filtration speed of small-particle gypsum crystals in the slurry.

[0034] See also Figure 4-Figure 9, the filter barrel 1 is installed with a slide 2, the filter assembly 8 includes a large-aperture filter plate 801 and a rotating shaft 802, the large-aperture filter plates 801 are rotatably installed on both sides of the rotating shaft 802, and a sliding rod 804 is installed on the large-aperture filter plate 801, and the sliding rod 804 is located in the slide 2 and slides. Specifically, the telescopic assembly 14 includes a telescopic sleeve 1401 and a telescopic rod 1402, the telescopic sleeve 1401 and the telescopic rod 1402 are slidably matched, the telescopic sleeve 1401 is connected to the liquid extraction assembly 9, the telescopic rod 1402 is installed with a collar 1403, and the collar 1403 is sleeved on the rotating shaft 802. Specifically, the telescopic assembly 14 also includes an electromagnetic suction cup 1404 and a suction block 1405, the electromagnetic suction cup 1404 is installed in the telescopic sleeve 1401, the suction block 1405 is installed on the telescopic rod 1402, and the electromagnetic suction cup 1404 adsorbs the suction block 1405. Specifically, a telescopic head 15 is installed in the slide 2 , and the telescopic head 15 abuts against the slide rod 804 .

[0035] Specifically, the large-aperture filter plate 801 is provided with a plate groove 808, in which the sieve plate 2 805 is slidably installed, an elliptical rod 803 is installed on the rotating shaft 802, an elliptical groove 806 is provided on the elliptical rod 803, a slider 807 is installed on the sieve plate 2 805, and the slider 807 is slidably installed in the elliptical groove 806.

[0036] It should be noted that the filter holes of sieve plate 2 805 have the same aperture as the filter holes on large-aperture filter plate 801. When large-aperture filter plate 801 is in an unfolded state, the filter holes of sieve plate 2 805 coincide with the filter holes of large-aperture filter plate 801. When large-aperture filter plate 801 is in a folded state, the filter holes of sieve plate 2 805 are staggered with the filter holes of large-aperture filter plate 801.

[0037] When in use, close the valve on the liquid inlet 5, start the cylinder 4, so that the cylinder 4 drives the connecting rod 11 to move downward, and the connecting rod 11 drives the plug plate 901 to move downward through the solid plate 13, and the electromagnetic suction cup 1404 inside the telescopic sleeve 1401 is energized, and the electromagnetic suction cup 1404 absorbs the suction block 1405 to achieve a fixed connection between the telescopic rod 1402 and the telescopic sleeve 1401.

[0038] As the plug plate 901 moves downward, the plug plate 901 drives the rotating shaft 802 to move downward through the telescopic assembly 14. Figure 5 and Figure 6, the rotating shaft 802 moves downward to drive the large-aperture filter plate 801 to fold, and at the same time, the sliding rod 804 slides in the slide table 2 and leaves the limit of the telescopic head 15. As the large-aperture filter plate 801 folds, the large-particle gypsum crystals on the large-aperture filter plate 801 are squeezed by the large-aperture filter plate 801, and the large-particle gypsum crystals are crushed by the large-aperture filter plate 801. Then the cylinder 4 drives the connecting rod 11 to move upward to reset the large-aperture filter plate 801. The crushed large-particle gypsum crystals can pass through the large-aperture filter plate 801 and fall onto the small-aperture filter plate 10, and are collected together with the small-particle gypsum crystals on the small-aperture filter plate 10, thereby improving the uniformity of the gypsum crystals and further improving the quality of the gypsum.

[0039] Specifically, during the folding process of the large-aperture filter plate 801, the slider 807 on the sieve plate 805 slides in the elliptical groove 806. As the large-aperture filter plate 801 is folded, the sieve plate 805 slides inside the plate groove 808, so that the filter holes on the sieve plate 805 are staggered with the filter holes on the large-aperture filter plate 801. The sieve plate 805 blocks the filter holes on the large-aperture filter plate 801 to prevent the large-aperture filter plate 801 from squeezing gypsum crystals when the large-aperture filter plate 801 is folded, and to prevent large-particle gypsum crystals from impacting the filter holes of the large-aperture filter plate 801 under the action of the squeezing of the large-aperture filter plate 801, causing the filter holes of the large-aperture filter plate 801 to deform.

[0040] See also Figure 2-Figure 3 A base 3 is installed at the bottom of the filter barrel 1, and a discharge port 6 is installed on the side wall of the filter barrel 1. One end of the discharge port 6 faces the small-pore filter plate 10, and the other end is connected to the pump body.

[0041] It should be noted that the discharge port 6 is connected to the pump body. By starting the pump body, the pump body extracts the small-particle gypsum crystals separated from the small-aperture filter plate 10 through the discharge port 6 .

[0042] Working principle of the present invention: When in use, the liquid inlet 5 is connected to the gypsum slurry, and the gypsum slurry is injected into the filter barrel 1 through the liquid inlet 5. When the gypsum slurry passes through the filter assembly 8, the filter assembly 8 filters the large-particle gypsum crystals in the slurry. The cylinder 4 is started, and the cylinder 4 drives the connecting rod 11 and the solid plate 13 to move downward. During the process of the solid plate 13 moving downward, the solid plate 13 drives the plug plate 901 to move downward synchronously, so that the solid plate 13 blocks the through groove 905 on the plug plate 901. As the solid plate 13 drives the plug plate 901 to move downward synchronously, the plug plate 901 extracts the gypsum slurry, accelerates the gypsum slurry to pass through the filter assembly 8, and improves the filtering speed of the large-particle gypsum crystals in the slurry. When the cylinder 4 drives the connecting rod 11 to move upward, the solid plate 13 first separates from the plug plate 901, and then the hollow plate 12 contacts the plug plate 901 and drives the plug plate 901 to move upward synchronously. In the process of the plug plate 901 moving upward, the through groove 905 is connected with the hollow plate 12, so that the plug plate 901 is in a non-blocking state. As the plug plate 901 moves upward, the plug plate 901 gradually returns to its original position.

[0043] When the cylinder 4 drives the connecting rod 11 downward again, Figure 2 , the solid plate 13 drives the plug plate 901 to move downward synchronously, so that the solid plate 13 blocks the through groove 905 on the plug plate 901. As the plug plate 901 moves downward, one side of the plug plate 901 extracts the gypsum slurry, so that the gypsum slurry is accelerated to pass through the filter assembly 8. At the same time, the other side of the plug plate 901 presses the slurry after filtering out the large-particle gypsum crystals to pass through the small-aperture filter plate 10, accelerating the slurry to pass through the small-aperture filter plate 10, and improving the filtering speed of the small-particle gypsum crystals in the slurry. Finally, the filtered slurry is discharged from the filter barrel 1 through the drain port 7.

[0044] Specifically, close the valve on the liquid inlet 5, start the cylinder 4, so that the cylinder 4 drives the connecting rod 11 to move downward, and the connecting rod 11 drives the plug plate 901 to move downward through the solid plate 13, and the electromagnetic suction cup 1404 inside the telescopic sleeve 1401 is energized, and the electromagnetic suction cup 1404 absorbs the suction block 1405 to achieve a fixed connection between the telescopic rod 1402 and the telescopic sleeve 1401.

[0045] As the plug plate 901 moves downward, the plug plate 901 drives the rotating shaft 802 to move downward through the telescopic assembly 14. Figure 5 and Figure 6 , the rotating shaft 802 moves downward to drive the large-aperture filter plate 801 to fold, and at the same time, the sliding rod 804 slides in the slide table 2 and leaves the limit of the telescopic head 15. As the large-aperture filter plate 801 folds, the large-particle gypsum crystals on the large-aperture filter plate 801 are squeezed by the large-aperture filter plate 801, and the large-particle gypsum crystals are crushed by the large-aperture filter plate 801. Then the cylinder 4 drives the connecting rod 11 to move upward to reset the large-aperture filter plate 801. The crushed large-particle gypsum crystals can pass through the large-aperture filter plate 801 and fall onto the small-aperture filter plate 10, and are collected together with the small-particle gypsum crystals on the small-aperture filter plate 10, thereby improving the uniformity of the gypsum crystals and further improving the quality of the gypsum.

[0046] Specifically, during the folding process of the large-aperture filter plate 801, the slider 807 on the sieve plate 805 slides in the elliptical groove 806. As the large-aperture filter plate 801 is folded, the sieve plate 805 slides inside the plate groove 808, so that the filter holes on the sieve plate 805 are staggered with the filter holes on the large-aperture filter plate 801. The sieve plate 805 blocks the filter holes on the large-aperture filter plate 801 to prevent the large-aperture filter plate 801 from squeezing gypsum crystals when the large-aperture filter plate 801 is folded, and to prevent large-particle gypsum crystals from impacting the filter holes of the large-aperture filter plate 801 under the action of the squeezing of the large-aperture filter plate 801, causing the filter holes of the large-aperture filter plate 801 to deform.

[0047] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A separation device for desulfurized gypsum slurry, characterized in that: The filter barrel (1) comprises a filter barrel (1), wherein a liquid inlet (5) is installed at the top of the filter barrel (1), and a liquid outlet (7) is installed at the bottom. A foldable filter assembly (8) is installed in the filter barrel (1), and a small-aperture filter plate (10) is fixedly installed in the filter barrel (1). A cylinder (4) is installed on the filter barrel (1), and the output end of the cylinder (4) is connected to a connecting rod (11). The connecting rod (11) is respectively connected to a hollow plate (12) and a solid plate (13). The filter assembly (8) is connected to a liquid extraction assembly (9) via a telescopic assembly (14). The liquid extraction assembly (9) is located between the hollow plate (12) and the solid plate (13). The liquid extraction assembly (9) comprises a plug plate (901) and a through groove (905) provided on the plug plate (901). When the cylinder (4) drives the connecting rod (11) to move downward, the solid plate (13) on the connecting rod (11) drives the plug plate (901) to move downward, at which time the through groove (905) on the plug plate (901) is in a blocked state, and at the same time the plug plate (901) drives the filter assembly (8) to fold through the telescopic assembly (14); when the cylinder (4) drives the connecting rod (11) to move upward, the hollow plate (12) on the connecting rod (11) pushes the plug plate (901) to move upward, at which time the through groove (905) on the plug plate (901) is in a non-blocked state.

2. A desulfurized gypsum slurry separation device according to claim 1, characterized in that: The filter barrel (1) is mounted on a slide table (2), the filter assembly (8) comprises a large-aperture filter plate (801) and a rotating shaft (802), the large-aperture filter plates (801) are rotatably mounted on both sides of the rotating shaft (802), a slide bar (804) is mounted on the large-aperture filter plate (801), and the slide bar (804) is located inside the slide table (2) and slides.

3. A desulfurized gypsum slurry separation device according to claim 1, characterized in that: The telescopic assembly (14) comprises a telescopic sleeve (1401) and a telescopic rod (1402), the telescopic sleeve (1401) and the telescopic rod (1402) being slidably matched, the telescopic sleeve (1401) being connected to the liquid extraction assembly (9), the telescopic rod (1402) being provided with a sleeve ring (1403), and the sleeve ring (1403) being sleeved on the rotating shaft (802).

4. A desulfurized gypsum slurry separation device according to claim 3, characterized in that: The telescopic assembly (14) further comprises an electromagnetic suction cup (1404) and a suction block (1405); the electromagnetic suction cup (1404) is installed in the telescopic sleeve (1401); the suction block (1405) is installed on the telescopic rod (1402); and the electromagnetic suction cup (1404) adsorbs the suction block (1405).

5. A desulfurized gypsum slurry separation device according to claim 2, characterized in that: The large-aperture filter plate (801) is provided with a plate groove (808), a second sieve plate (805) is slidably mounted in the plate groove (808), an elliptical rod (803) is mounted on the rotating shaft (802), an elliptical groove (806) is provided on the elliptical rod (803), a sliding block (807) is mounted on the second sieve plate (805), and the sliding block (807) is slidably mounted in the elliptical groove (806).

6. A desulfurized gypsum slurry separation device according to claim 5, characterized in that: A telescopic head (15) is installed in the slide table (2), and the telescopic head (15) abuts against the slide rod (804).

7. The separation device for desulfurized gypsum slurry according to claim 1, characterized in that: A base (3) is installed at the bottom of the filter barrel (1), and a discharge port (6) is installed on the side wall of the filter barrel (1). One end of the discharge port (6) faces the small-aperture filter plate (10), and the other end is connected to the pump body.

8. The separation device for desulfurized gypsum slurry according to claim 1, characterized in that: An annular rubber pad (902) is installed on the side wall of the plug plate (901), the plug plate (901) contacts the inner wall of the filter barrel (1) via the annular rubber pad (902), sealing pads (904) are installed on the top and bottom of the plug plate (901), the solid plate (13) and the hollow plate (12) contact the plug plate (901) via the sealing pad (904), annular scrapers (903) are installed on the side wall of the plug plate (901), the annular rubber pads (902) are located between the annular scrapers (903), and the annular scrapers (903) are in contact with the inner wall of the filter barrel (1).

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