Solid-liquid separation filtering equipment with multi-stage rotating cavity

Abstract

The invention discloses solid-liquid separation filtering equipment with a multi-stage rotating cavity, the filtering equipment comprises a support, an input pipeline, a sealing cover, a lifting unit, a stock solution filtering unit, a connecting pipeline, a filter residue filtering unit and an output pipeline, the support is fixedly connected with the stock solution filtering unit, the input pipeline is inserted into the sealing cover, and the lifting unit is connected with the connecting pipeline; the end, inserted into the sealing cover, of the input pipeline is rotationally connected with the stock solution filtering unit, the lifting unit is connected with the sealing cover and the stock solution filtering unit and assists in separating the sealing cover and the stock solution filtering unit, the sealing cover and the stock solution filtering unit are connected through a buckle and a bolt, and the sealing cover prevents dust from entering the stock solution filtering unit. The connecting pipeline is connected with the stock solution filtering unit and the filter residue filtering unit, filter residues generated by filtering of the stock solution filtering unit enter the filter residue filtering unit through the connecting pipeline for secondary filtering, one end of the output pipeline is partially connected with the bottom end of the filter residue filtering unit, and the output pipeline is responsible for outputting the secondary filter residues.

Description

Technical Field

[0001] The invention relates to the technical field of solid-liquid separation filtering equipment, in particular to a filtering equipment with multi-stage rotating chamber for solid-liquid separation. Background Art

[0002] In the field of suspension separation technology, traditional solid-liquid separation equipment usually adopts a single-layer screen filtration structure. The separation capacity of this design mainly depends on the size of the screen gap. Since the screen gap is fixed and cannot be adjusted or replaced, this equipment has limitations when facing situations that require more precise filtration. In order to achieve higher filtration accuracy, it is usually necessary to add additional filtration units at the back end of the equipment, which not only increases the cost, but also makes it difficult to effectively control the dryness and wetness of the filter residue. In addition, the screen cleaning process after filtration also requires a lot of manpower.

[0003] In order to solve the above problems, it is necessary to develop a filtration equipment with multi-stage rotating cavity solid-liquid separation, which can achieve higher filtration accuracy, perform secondary filtration on the filter residue liquid, further control the dryness and wetness of the filter residue, and reduce labor costs. Summary of the invention

[0004] The object of the present invention is to provide a filtering device with multi-stage rotating chamber solid-liquid separation to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] The filtering device includes a bracket, an input pipe, a cover, a lifting unit, a raw liquid filtering unit, a connecting pipe, a filter residue filtering unit and an output pipe, wherein the bracket is fixedly connected to the raw liquid filtering unit, the input pipe is inserted into the cover, one end of the input pipe inserted into the cover is rotatably connected to the raw liquid filtering unit, one end of the lifting unit is fixedly connected to the raw liquid filtering unit, the other end of the lifting unit is fixedly connected to the cover, the cover and the raw liquid filtering unit are connected by buckles and bolts, one end of the connecting pipe is connected to an end of the raw liquid filtering unit away from the cover, the other end of the connecting pipe is connected to the filter residue filtering unit away from the bottom end, and one end of the output pipe is connected to the bottom end of the filter residue filtering unit.

[0007] The bracket serves as the installation basis, and the raw liquid filtration unit is installed on the bracket. The lifting unit is responsible for driving the lifting and lowering of the cover. The cover prevents dust from entering the raw liquid filtration unit and affecting the filtration effect. The raw liquid filtration unit is responsible for filtering the raw liquid. The raw liquid is filtered once, and the residue liquid enters the residue filtration unit through the connecting pipe. After the residue liquid is filtered twice, the residue and filtrate are output through the output pipe.

[0008] Furthermore, the lifting unit includes a piston rod, a cylinder and a handwheel, the piston rod is connected to the cylinder piston, one end of the piston rod is fixedly connected to the cover, the other end of the piston rod is transmission-connected to the handwheel, the handwheel is located on the outer surface of the cylinder, and the cylinder is fixedly connected to the outer surface of the raw liquid filtration unit.

[0009] By turning the hand wheel and with the assistance of the cylinder, the cover can be easily raised and lowered through the piston rod, making it easy for workers to operate.

[0010] Furthermore, the raw liquid filtration unit includes a rotating motor, a rotating connecting rod, a leakage scraper pipe, a scraper strip, a multi-stage filter cylinder, a shell, a fixed base and a filtrate discharge pipe, the shell is fixedly connected to the bracket, the shell is connected to the cover by buckles and bolts, the shell is fixedly connected to the cylinder, the bottom outlet of the shell is connected to the connecting pipe, the leakage scraper pipe is rotatably connected to the input pipe, the scraper of the leakage scraper pipe is close to the inner wall surface of the multi-stage filter cylinder, the rotating motor is arranged on the input pipe, the rotating connecting rod is arranged inside the leakage scraper pipe, the rotating connecting rod is fixedly connected to the leakage scraper pipe, one end of the rotating connecting rod is fixedly connected to the rotor of the rotating motor, the fixed base is arranged on the inner wall protruding section of the middle section of the inner wall funnel section of the shell, the multi-stage filter cylinder is placed on the fixed base, one end of the scraper strip is fixedly connected to the leakage scraper pipe, the other end of the scraper strip is close to the fixed base, one side of the scraper strip is close to the inner wall surface of the multi-stage filter cylinder, one end of the filtrate discharge pipe is connected to the position of the multi-stage filter cylinder corresponding to the side of the shell.

[0011] The fixed base can fix the distance between the multi-stage filter cylinders. The rotating motor provides power for rotating the connecting rod, the leakage scraper pipe and the scraper strip. Due to centrifugal force and gravity, the leakage scraper pipe and the scraper strip scrape the filter residue from the inner wall of the multi-stage filter cylinder and drop it into the bottom of the shell. The filtrate is filtered by the multi-stage filter cylinder and enters the filtrate discharge pipe.

[0012] Furthermore, the multi-stage filter cylinder includes a primary filter cylinder, a secondary filter cylinder and a tertiary filter cylinder. The larger the number of stages, the greater the density of filter holes on the cylinder. One end of the primary filter cylinder is connected to a fixed base, the inner wall of the primary filter cylinder is in close contact with the scraper of the liquid leakage scraper pipe, the secondary filter cylinder wraps the primary filter cylinder, one end of the secondary filter cylinder is connected to a fixed base, the inner wall of the secondary filter cylinder is in close contact with the scraper, the tertiary filter cylinder wraps the secondary filter cylinder, one end of the tertiary filter cylinder is connected to a fixed base, the fixed base isolates the area between the tertiary filter cylinder and the outer shell from other areas, and the inner wall of the tertiary filter cylinder is in close contact with the scraper.

[0013] The original liquid flows from the first-stage filter cylinder to the third-stage filter cylinder. After three layers of filtration, it can achieve better filtering effect. Due to the force generated by centrifugal force, gravity and vortex, the liquid in each level of filter cylinder will not flow between the bottom gaps, ensuring the filtering effect of each level of filter cylinder.

[0014] Furthermore, a pressure control valve is provided on the connecting pipeline.

[0015] When the filter residue accumulates at the bottom of the shell and reaches the threshold of the pressure control valve, the pressure control valve opens to send the filter residue liquid into the filter residue filtration unit.

[0016] Furthermore, the residue filtration unit includes a filter plate, a drive motor, a scraper and a funnel container, the funnel container is connected to a connecting pipe away from the bottom end, the funnel container is connected to an output pipe, the scraper is fixedly connected to a rotor of the drive motor, the scraper is located inside the funnel container, one side of the filter plate is in contact with the movement trajectory of the scraper in the funnel container, and the filter plate divides the funnel container into two parts.

[0017] Furthermore, the output pipeline includes a liquid outlet pipeline and a slag outlet pipeline, the liquid outlet pipeline is connected to the funnel container, the filter plate separates the connecting pipeline and the slag outlet pipeline from the liquid outlet pipeline, and the slag outlet pipeline is connected to the bottom end of the funnel container.

[0018] The filter residue liquid enters the funnel container through the connecting pipe, and the driving motor provides power for the scraper to rotate. The scraper stirs the filter residue liquid. Due to gravity and centrifugal force, the filter residue sinks, and the upper liquid is filtered through the filter plate and discharged from the liquid outlet pipe, and the bottom filter residue is discharged from the residue outlet pipe.

[0019] Furthermore, a spiral conveying mechanism is provided in the slag discharge pipeline, and a pressure control valve is provided at one end of the slag discharge pipeline close to the funnel container.

[0020] When the filter residue at the bottom of the funnel container accumulates and reaches the threshold of the pressure control valve, the pressure control valve opens and is discharged through the spiral conveying mechanism.

[0021] Furthermore, a notch is provided on the side of the leakage scraper pipe, and the end of the leakage scraper pipe away from the input pipe is a closed end.

[0022] One end of the leakage scraper pipe is a closed section, and the original liquid flows out from the side of the leakage scraper pipe, which can prevent the filter residue accumulated at the bottom from being dispersed and prevent the filter residue from being washed to the upper end.

[0023] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: before starting the equipment, the present invention rotates the hand wheel to lower the cover, closes the cover and the shell by means of buckles and bolts, and then starts the equipment, the raw liquid flows from the input pipe through the leaking scraper pipe into the primary filter cylinder, the raw liquid is filtered layer by layer by the primary filter cylinder, the secondary filter cylinder and the tertiary filter cylinder, the filtrate is discharged from the filtrate discharge pipe, the filter residue is scraped off by the scraper and the scraper bar, falls under the action of centrifugal force and gravity, and the filter residue accumulates at the bottom of the shell, when the accumulation pressure reaches the threshold of the pressure control valve in the connecting pipe, the pressure control valve opens, and the filter residue liquid is sent into the funnel container, the filter residue liquid is stirred by the scraper in the funnel container, sinks and accumulates under the action of centrifugal force and gravity, the upper layer of liquid is filtered through the filter plate, and then discharged through the liquid outlet pipe, the filter residue accumulates at the bottom of the funnel container, when the threshold of the pressure control valve in the residue outlet pipe is reached, the pressure control valve opens, and the filter residue is transported out via the spiral conveying mechanism. . BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 It is a schematic diagram of the internal structure of the present invention;

[0027] Figure 3 It is a partial structural cross-sectional view of the present invention;

[0028] Figure 4 It is a schematic diagram of the connection structure of the multi-stage filtering round part of the present invention;

[0029] Figure 5 It is a partial structural schematic diagram of the original liquid filtration unit of the present invention;

[0030] Figure 6 It is a schematic diagram of the fixed base structure of the present invention;

[0031] In the figure: 1- bracket, 2- input pipeline, 3- cover, 4- lifting unit, 5- raw liquid filtration unit, 6- connecting pipeline, 7- filter residue filtration unit, 8- output pipeline, 41- piston rod, 42- cylinder, 43- hand wheel, 51- rotating motor, 52- rotating connecting rod, 53- leaking scraper pipeline, 54- scraper, 55- multi-stage filter cylinder, 56- shell, 57- fixed base, 58- filtrate discharge pipeline, 61- pressure control valve, 71- filter plate, 72- driving motor, 73- scraper, 74- funnel container, 81- liquid outlet pipeline, 82- residue outlet pipeline, 531- scraper, 551- primary filter cylinder, 552- secondary filter cylinder, 553- tertiary filter cylinder, 821- spiral transmission mechanism. DETAILED DESCRIPTION

[0032] 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.

[0033] The present invention provides a technical solution:

[0034] As shown in the figure, the filtering device includes a bracket 1, an input pipe 2, a cover 3, a lifting unit 4, a raw liquid filtering unit 5, a connecting pipe 6, a residue filtering unit 7 and an output pipe 8, the bracket 1 is fixedly connected to the raw liquid filtering unit 5, the input pipe 2 is inserted into the cover 3, one end of the input pipe 2 inserted into the cover 3 is rotatably connected to the raw liquid filtering unit 5, one end of the lifting unit 4 is fixedly connected to the raw liquid filtering unit 5, the other end of the lifting unit 4 is fixedly connected to the cover 3, the cover 3 and the raw liquid filtering unit 5 are connected by buckles and bolts, one end of the connecting pipe 6 is connected to the end of the raw liquid filtering unit 5 away from the cover 3, the other end of the connecting pipe 6 is connected to the residue filtering unit 7 away from the bottom end, and one end of the output pipe 8 is connected to the bottom end of the residue filtering unit 7.

[0035] The bracket 1 serves as an installation base, and the raw liquid filtering unit 5 is installed on the bracket 1. The lifting unit 4 is responsible for driving the lifting of the cover 3. The cover 3 prevents dust from entering the raw liquid filtering unit 5 and affecting the filtering effect. The raw liquid filtering unit 5 is responsible for filtering the raw liquid. The raw liquid is filtered once, and the residue liquid enters the residue filtering unit 7 through the connecting pipe 6. After the residue liquid is filtered twice, the residue and filtrate are output through the output pipe 8.

[0036] As shown in the figure, the lifting unit 4 includes a piston rod 41, a cylinder 42 and a handwheel 43. The piston rod 41 and the cylinder 42 are piston-connected, one end of the piston rod 41 is fixedly connected to the cover 3, and the other end of the piston rod 41 is transmission-connected to the handwheel 43. The handwheel 43 is located on the outer surface of the cylinder 42, and the cylinder 42 is fixedly connected to the outer surface of the raw liquid filtration unit 5.

[0037] By turning the hand wheel 43 and with the assistance of the cylinder 42 , the cover 3 can be easily raised and lowered through the piston rod 41 , which is convenient for workers to operate.

[0038] like Figure 1 and Figure 2 As shown, the raw liquid filtration unit 5 includes a rotating motor 51, a rotating connecting rod 52, a leakage scraper pipe 53, a scraper 54, a multi-stage filtering cylinder 55, a shell 56, a fixed base 57 and a filtrate discharge pipe 58, wherein the shell 56 is fixedly connected to the bracket 1, the shell 56 is connected to the cover 3 by buckles and bolts, the shell 56 is fixedly connected to the cylinder 42, the bottom outlet of the shell 56 is connected to the connecting pipe 6, the leakage scraper pipe 53 is rotatably connected to the input pipe 2, the scraper 531 of the leakage scraper pipe 53 is close to the inner wall of the multi-stage filtering cylinder 55, the rotating motor 51 is arranged on the input pipe 2, and the rotating The connecting rod 52 is arranged inside the liquid leakage scraper pipe 53, the rotating connecting rod 52 is fixedly connected to the liquid leakage scraper pipe 53, one end of the rotating connecting rod 52 is fixedly connected to the rotor of the rotating motor 51, the fixed base 57 is arranged on the inner wall protruding section of the middle section of the inner wall funnel section of the outer shell 56, the multi-stage filter cylinder 55 is placed on the fixed base 57, one end of the scraper 54 is fixedly connected to the liquid leakage scraper pipe 53, the other end of the scraper 54 is close to the fixed base 57, one side of the scraper 54 is close to the inner wall surface of the multi-stage filter cylinder 55, and one end of the filtrate discharge pipe 58 is connected to the side of the outer shell 56 corresponding to the position of the multi-stage filter cylinder 55.

[0039] The fixed base 57 can fix the distance between the multi-stage filter cylinders 55. The rotating motor 51 provides power for rotating the connecting rod 52, the leakage scraper pipe 53 and the scraper bar 54. Due to centrifugal force and gravity, the leakage scraper pipe 53 and the scraper bar 54 scrape the filter residue from the inner wall of the multi-stage filter cylinder 55 and drop it into the bottom of the shell 56. The filtrate is filtered by the multi-stage filter cylinder 55 and enters the filtrate discharge pipe 58.

[0040] like Figure 4As shown, the multi-stage filter cylinder 55 includes a primary filter cylinder 551, a secondary filter cylinder 552 and a tertiary filter cylinder 553. The larger the number of stages, the greater the density of the filter holes on the cylinder. One end of the primary filter cylinder 551 is connected to the fixed base 57, and the inner wall of the primary filter cylinder 551 is in close contact with the scraper 531 of the liquid leakage scraper pipe 53. The secondary filter cylinder 552 wraps the primary filter cylinder 551, and one end of the secondary filter cylinder 552 is connected to the fixed base 57. The inner wall of the secondary filter cylinder 552 is in close contact with the scraper 54. The tertiary filter cylinder 553 wraps the secondary filter cylinder 552, and one end of the tertiary filter cylinder 553 is connected to the fixed base 57. The fixed base 57 prevents the area between the tertiary filter cylinder 553 and the outer shell 56 from communicating with other areas, and the inner wall of the tertiary filter cylinder 553 is in close contact with the scraper 54.

[0041] The original liquid flows from the first-stage filter cylinder 551 to the third-stage filter cylinder 553, and can achieve better filtering effect after three layers of filtration. Due to the force generated by centrifugal force, gravity and vortex, the liquid in each level of filter cylinder will not flow between the bottom gaps, ensuring the filtering effect of each level of filter cylinder.

[0042] like Figure 1 As shown, a pressure control valve 61 is provided on the connecting pipeline 6 .

[0043] When the filter residue accumulates at the bottom of the housing 56 and reaches the threshold of the pressure control valve 61 , the pressure control valve 61 opens to send the filter residue liquid into the filter residue filtering unit 7 .

[0044] like Figure 2 As shown, the residue filtering unit 7 includes a filter plate 71, a drive motor 72, a scraper 73 and a funnel container 74. The funnel container 74 is connected to the connecting pipe 6 away from the bottom end, and the funnel container 74 is connected to the output pipe 8. The scraper 73 is fixedly connected to the rotor of the drive motor 72. The scraper 73 is located inside the funnel container 74. One side of the filter plate 71 is in contact with the movement trajectory of the scraper 73 in the funnel container 74. The filter plate 71 divides the funnel container 74 into two parts.

[0045] like Figure 1 As shown, the output pipeline 8 includes a liquid outlet pipeline 81 and a slag outlet pipeline 82, the liquid outlet pipeline 81 is connected to the funnel container 74, the filter plate 71 separates the connecting pipeline 6 and the slag outlet pipeline 82 from the liquid outlet pipeline 81, and the slag outlet pipeline 82 is connected to the bottom end portion of the funnel container 74.

[0046] The filtrate liquid enters the funnel container 74 through the connecting pipe 6, and the driving motor 72 provides power for the rotation of the scraper 73. The scraper 73 stirs the filtrate liquid. Due to gravity and centrifugal force, the filtrate sinks, and the upper liquid is filtered through the filter plate 71 and discharged from the liquid outlet pipe 81, and the bottom filtrate is discharged from the filtrate outlet pipe 82.

[0047] like Figure 1 and Figure 2 As shown, a spiral conveying mechanism 821 is provided in the slag discharge pipe 82 , and a pressure control valve 61 is provided at one end of the slag discharge pipe 82 close to the funnel container 74 .

[0048] When the filter residue at the bottom of the funnel container 74 accumulates and reaches the threshold of the pressure control valve 61 , the pressure control valve 61 opens and is transported and discharged via the spiral transport mechanism 821 .

[0049] like Figure 5 As shown, a notch is provided on the side of the liquid leakage scraper pipe 53, and the end of the liquid leakage scraper pipe 53 away from the input pipe 2 is a closed end.

[0050] One end of the liquid leakage scraper pipe 53 is a closed section, and the original liquid flows out from the side of the liquid leakage scraper pipe 53 to prevent the filter residue accumulated at the bottom from being dispersed, and the filter residue is flushed to the upper end.

[0051] The working principle of the present invention is as follows: before starting the equipment, turn the hand wheel 43 to lower the cover 3, close the cover 3 and the housing 56 by means of the buckle and the bolt, and then start the equipment. The raw liquid flows from the input pipe 2 through the leaking scraper pipe 53 into the primary filter cylinder 551. The raw liquid is filtered through the primary filter cylinder 551, the secondary filter cylinder 552 and the tertiary filter cylinder 553. The filtrate is discharged from the filtrate discharge pipe 58. The filter residue is scraped off by the scraper 531 and the scraper bar 54, and falls under the action of centrifugal force and gravity. The filter residue is in the housing 56. The filter residue accumulates at the bottom. When the accumulation pressure reaches the threshold of the pressure control valve 61 in the connecting pipe 6, the pressure control valve 61 opens and sends the filter residue liquid into the funnel container 74. The filter residue liquid is stirred by the scraper 73 in the funnel container 74, and sinks and accumulates under the action of centrifugal force and gravity. The upper liquid is filtered through the filter plate 71 and then discharged through the liquid outlet pipe 81. The filter residue accumulates at the bottom of the funnel container 74. When the threshold of the pressure control valve 61 in the residue discharge pipe 82 is reached, the pressure control valve 61 opens and is transported out via the spiral conveying mechanism 821.

[0052] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0053] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A filtering device with multi-stage rotating chamber solid-liquid separation, characterized in that: The filtering device comprises a support (1), an input pipe (2), a cover (3), a lifting unit (4), a raw liquid filtering unit (5), a connecting pipe (6), a filter residue filtering unit (7) and an output pipe (8); the support (1) and the raw liquid filtering unit (5) are fixedly connected; the input pipe (2) is inserted into the cover (3); one end of the input pipe (2) inserted into the cover (3) is rotatably connected to the raw liquid filtering unit (5); one end of the lifting unit (4) is fixedly connected to the raw liquid filtering unit (5); the other end of the lifting unit (4) is fixedly connected to the cover (3); the cover (3) and the raw liquid filtering unit (5) are connected by buckles and bolts; one end of the connecting pipe (6) is connected to one end of the raw liquid filtering unit (5) away from the cover (3); the other end of the connecting pipe (6) is connected to a portion away from the bottom end of the filter residue filtering unit (7); and one end of the output pipe (8) is connected to the bottom end of the filter residue filtering unit (7).

2. The filtering device with multi-stage rotating chamber solid-liquid separation according to claim 1, characterized in that: The lifting unit (4) comprises a piston rod (41), a cylinder (42) and a hand wheel (43); the piston rod (41) and the cylinder (42) are piston-connected; one end of the piston rod (41) is fixedly connected to the sealing cover (3); the other end of the piston rod (41) is transmission-connected to the hand wheel (43); the hand wheel (43) is located on the outer surface of the cylinder (42); and the cylinder (42) is fixedly connected to the outer surface of the raw liquid filtering unit (5).

3. The filtering device with multi-stage rotating chamber solid-liquid separation according to claim 2, characterized in that: The raw liquid filtering unit (5) comprises a rotating motor (51), a rotating connecting rod (52), a liquid leakage scraper pipe (53), a scraper strip (54), a multi-stage filtering cylinder (55), a housing (56), a fixed base (57) and a filtrate discharge pipe (58); the housing (56) is fixedly connected to the bracket (1); the housing (56) is connected to the sealing cover (3) by means of a buckle and a bolt; the housing (56) is fixedly connected to the cylinder (42); the bottom outlet of the housing (56) is connected to the connecting pipe (6); the liquid leakage scraper pipe (53) is rotatably connected to the input pipe (2); the scraper strip (531) of the liquid leakage scraper pipe (53) is in close contact with the inner wall surface of the multi-stage filtering cylinder (55); the rotating motor (51) is arranged on the input pipe (2); The rotating connecting rod (52) is arranged inside the liquid leakage scraper pipe (53), the rotating connecting rod (52) and the liquid leakage scraper pipe (53) are fixedly connected, one end of the rotating connecting rod (52) is fixedly connected to the rotor of the rotating motor (51), the fixed base (57) is arranged on the inner wall protruding section of the middle section of the inner wall funnel section of the outer shell (56), the multi-stage filter cylinder (55) is placed on the fixed base (57), one end of the scraper (54) is fixedly connected to the liquid leakage scraper pipe (53), the other end of the scraper (54) is close to the fixed base (57), one side of the scraper (54) is closely attached to the inner wall surface of the multi-stage filter cylinder (55), and one end of the filtrate discharge pipe (58) is connected to the side of the outer shell (56) at a position corresponding to the multi-stage filter cylinder (55).

4. The filtering device with multi-stage rotating chamber solid-liquid separation according to claim 3, characterized in that: The multi-stage filter cylinder (55) comprises a primary filter cylinder (551), a secondary filter cylinder (552) and a tertiary filter cylinder (553). The greater the number of stages, the greater the density of the filter holes on the cylinder. One end of the primary filter cylinder (551) is connected to a fixed base (57). The inner wall of the primary filter cylinder (551) is in close contact with the scraper (531) of the liquid leakage scraper pipe (53). The secondary filter cylinder (552) wraps around the primary filter cylinder (551). The secondary filter cylinder (553) 552) is connected to a fixed base (57), the inner wall of the secondary filter cylinder (552) is in close contact with the scraper (54), the tertiary filter cylinder (553) wraps the secondary filter cylinder (552), and one end of the tertiary filter cylinder (553) is connected to a fixed base (57), the fixed base (57) isolates the area between the tertiary filter cylinder (553) and the housing (56) from other areas, and the inner wall of the tertiary filter cylinder (553) is in close contact with the scraper (54).

5. The filtering device with multi-stage rotating chamber solid-liquid separation according to claim 4, characterized in that: The connecting pipeline (6) is provided with a pressure control valve (61).

6. The filtering device with multi-stage rotating chamber solid-liquid separation according to claim 1, characterized in that: The residue filtering unit (7) comprises a filter plate (71), a drive motor (72), a scraper (73) and a funnel container (74); the funnel container (74) is connected to a connecting pipe (6) away from a bottom end portion; the funnel container (74) is connected to an output pipe (8); the scraper (73) is fixedly connected to a rotor of the drive motor (72); the scraper (73) is located inside the funnel container (74); one side of the filter plate (71) is in contact with a movement trajectory of the scraper (73) in the funnel container (74); and the filter plate (71) divides the funnel container (74) into two parts.

7. The filtering device with multi-stage rotating chamber solid-liquid separation according to claim 6, characterized in that: The output pipeline (8) comprises a liquid outlet pipeline (81) and a slag outlet pipeline (82); the liquid outlet pipeline (81) is connected to the funnel container (74); the filter plate (71) separates the connecting pipeline (6) and the slag outlet pipeline (82) from the liquid outlet pipeline (81); and the slag outlet pipeline (82) is connected to the bottom end portion of the funnel container (74).

8. The filtering device with multi-stage rotating chamber solid-liquid separation according to claim 7, characterized in that: A spiral conveying mechanism (821) is provided in the slag discharge pipe (82), and a pressure control valve (61) is provided at one end of the slag discharge pipe (82) close to the funnel container (74).

9. The filtering device with multi-stage rotating chamber solid-liquid separation according to claim 3, characterized in that: A notch is provided on the side of the liquid leakage scraper pipe (53), and the end of the liquid leakage scraper pipe (53) away from the input pipe (2) is a closed end.

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