A solid-liquid separation filter

Abstract

The present application relates to a solid-liquid separation filter, comprising a cylinder with an inner cavity, a driving member 1, a driving member 2, a filter screen, a propping member, a mounting ring, a rotating scraper and a cover body, wherein the cover body is hinged at the bottom end of the cylinder body, the driving member 1 drives the cover body to flip, a feeding port is provided at the top of the cylinder body, and a liquid outlet is provided at the bottom end of the cover body; a propping member is provided in the cover body, and the propping member is used to prop the filter screen open; a mounting ring is detachably connected to the cover body, the mounting ring is located above the filter screen, the mounting ring is coaxially arranged with the filter screen, and is used to cover the circumferential edge of the filter screen; the rotating scraper comprises a rotating ring and a plurality of scraping strips, the rotating ring is coaxially rotatably connected to the mounting ring, the two ends of the scraping strips are arranged on the rotating ring, the scraping strips are used to abut against the filter screen, and the driving member 2 drives the rotating ring to rotate. The scraping strips abut against the filter screen to scrape the filter screen, and can timely scrape and pile up the solid particles filtered out of the filter screen, thereby reducing the clogging area of ​​the filter screen, thereby improving the filtration efficiency and reducing the frequency of cleaning the filter screen.

Description

Technical Field

[0001] The invention relates to the field of solid-liquid separation equipment, in particular to a solid-liquid separation filter. Background Art

[0002] Solid-liquid separation filtration equipment is a kind of equipment that can separate solids and liquids.

[0003] Related technology solid-liquid separation filter such as Figure 1 As shown, it includes a cylinder and a cover hinged at the bottom of the cylinder, a feeding port is provided at the top of the cylinder, a filter screen is provided in the cover, and a liquid outlet is provided at the bottom of the cover. The solid-liquid mixture is fed in from the feeding port, the solid is separated by the filter screen, and finally the liquid flows out from the liquid outlet.

[0004] These filtered solids will accumulate on the filter screen, which can easily clog the filter screen and affect the filtering effect. The operator needs to open the lid in time to clean the solid particles separated from the filter screen. Summary of the invention

[0005] In order to reduce the frequency of cleaning the filter screen, the present application provides a solid-liquid separation filter.

[0006] The solid-liquid separation filter provided in this application adopts the following technical solution:

[0007] A solid-liquid separation filter comprises a cylinder with an inner cavity, a first driving member, a second driving member, a filter screen, a propping member, a mounting ring, a rotating scraping member and a cover body, wherein the cover body is hinged at the bottom end of the cylinder body, the first driving member drives the cover body to flip, a feeding port is provided at the top of the cylinder body, and a liquid outlet is provided at the bottom end of the cover body;

[0008] The cover body is provided with a propping piece, which is used to prop up the filter screen. The mounting ring is detachably connected to the cover body, and the mounting ring is located above the filter screen. The mounting ring is coaxially arranged with the filter screen and is used to cover the circumferential edge of the filter screen. The rotating scraper comprises a swivel and a plurality of scraping strips, and the swivel is coaxially rotatably connected to the mounting ring. Both ends of the scraping strips are arranged on the swivel, and the scraping strips are used to abut against the filter screen. The driving member 2 drives the swivel to rotate.

[0009] By adopting the above technical solution, the rotating ring is driven to rotate, and the scraper bar abuts against the filter to scrape the filter. The solid particles filtered out of the filter can be scraped and piled together in time, reducing the blockage area of ​​the filter, thereby improving the filtration efficiency and reducing the frequency of cleaning the filter.

[0010] Preferably, the opening member comprises a control member, an adjusting ring, a plurality of sliders, a plurality of supporting pillars, a plurality of first springs and a plurality of pull ropes, a first annular groove and a second annular groove are coaxially provided on the top surface of the cover body, the first annular groove surrounds the second annular groove, the axial depth of the first annular groove is greater than the axial depth of the second annular groove, and the adjusting ring is coaxially rotatably connected in the first annular groove;

[0011] A plurality of first slide grooves are sequentially provided on the bottom wall of the second ring groove along the circumferential direction, the length direction of the first slide groove is arranged along the radial direction of the second ring groove, a plurality of sliders are slidably connected in the plurality of first slide grooves one by one, a plurality of support pillars are fixedly arranged on the sliders one by one, a plurality of first springs are arranged in the plurality of first slide grooves one by one, two ends of the first springs are respectively abutted on the slider and on an end wall of the first slide groove close to the adjusting ring, and the first spring is always in a compressed state; an avoidance opening is provided on an end wall of the first slide groove close to the adjusting ring, an avoidance ring groove for accommodating a pull rope is provided on the inner wall of the adjusting ring, one end of the pull rope is fixed on the slider, and the other end of the pull rope is fixed on the wall of the avoidance ring groove after passing through the avoidance opening;

[0012] The edge of the filter screen is provided with a plurality of hanging rings in sequence along the circumferential direction, and the plurality of hanging rings are hung on a plurality of support pillars one by one, and the control member is used to control the rotation state of the adjustment ring.

[0013] By adopting the above technical solution, the operator rotates the adjustment ring unidirectionally, and the rotation of the adjustment ring can pull several pull ropes at the same time. The pull ropes overcome the elastic force of the first spring and drive the slider to move outward. The support column fixed on the slider can drive the hanging ring to move outward, and finally the filter screen is tensioned. Only the tensioned filter screen can better fit the scraper strip for use.

[0014] Preferably, the edge where the avoidance opening is located is provided with rounded corners.

[0015] By adopting the above technical solution, the rounded corners can guide the movement of the pull rope, reduce the wear on the pull rope, and increase the service life of the pull rope.

[0016] Preferably, the control member includes a ratchet, a first shaft, a pawl and a second spring. A first groove connected to the first ring groove is provided on the outer wall of the cover body. The pawl is rotatably connected in the first groove via the first shaft. The ratchet is provided on the outer wall of the adjustment ring along the circumferential direction. The second spring connects the pawl and the cover body to drive the pawl to rotate until it engages with the ratchet. A toggle rod for hand force is provided on the outward side of the pawl.

[0017] By adopting the above technical solution, the operator can disengage the pawl from the ratchet by toggling the toggle lever. In the absence of the pawl, a number of sliders will move inward under the action of the first spring, thereby driving the filter to tighten, making it convenient for the operator to remove the filter.

[0018] Preferably, the scraper strip includes a fixed strip, a movable strip and a third spring, the two ends of the fixed strip are respectively fixedly arranged on the rotating ring, a plurality of fixed strips are arranged on the rotating ring in parallel with each other, a second slide groove is provided on the bottom surface of the fixed strip along the axial direction of the rotating ring, the movable strip is slidably connected to the second slide groove, the bottom surface of the movable strip is arranged in an arc shape along the length direction, the bottom surface of the movable strip is used to abut against the filter screen, a groove is provided on the top surface of the movable strip, and the two ends of the third spring respectively abut against the bottom wall of the groove and the top wall of the second slide groove.

[0019] By adopting the above technical solution, the bottom end of the scraper strip is arranged in an arc shape, which can better fit the filter screen and also increase the screening area of ​​the filter screen. At the same time, the solid-liquid mixture will move toward the center of the filter screen, which can reduce the impact on the propping member.

[0020] Preferably, two first gears are rotatably connected in the fixed bar, and the two first gears are respectively located on both sides of the length direction of the moving bar. Two sliding rods are slidably connected in the fixed bar along a sliding direction parallel to the moving bar, and the two sliding rods are respectively located on both sides of the two first gears. One side of the sliding rod facing the first gear and one side of the moving bar facing the first gear are respectively provided with first tooth grooves, and the first gear is meshingly connected to the two first tooth grooves. When the filter is loosened, the top end of the sliding rod extends out of the fixed bar; when the filter is tensioned, the sliding rod is completely located in the fixed bar.

[0021] By adopting the above technical solution, when the filter is loosened, the movable bar will move downward under the action of the third spring, and the slide bar can be driven to move upward through the cooperation of the first gear, thereby helping the operator to judge the state of the filter; when the filter is tensioned, the tension of the filter acts on the movable bar, driving the movable bar to overcome the force of the third spring and move upward. At this time, the slide bar moves downward and retracts into the fixed bar. At this time, the filter and the movable bar are completely fitted and pressed against each other, and the contact force between the two can be changed by replacing the third spring and changing the elastic force of the third spring, so that they are in a suitable state, which can improve the scraping effect between the movable bar and the filter.

[0022] Preferably, the second driving member includes a motor and a second gear, and second tooth grooves are sequentially opened on the top surface of the rotating ring along the circumferential direction. The motor is fixedly arranged on the cylinder body, and the output shaft of the motor extends into the inner cavity and is coaxially fixedly connected with the second gear. When the cover body is closed, the second gear is meshed and connected to the second tooth groove.

[0023] By adopting the above technical solution, the output shaft of the motor rotates to drive the second gear to rotate, and the rotation of the second gear drives the rotating ring to rotate in cooperation with the second tooth groove.

[0024] Preferably, it also includes a driving member three, which is used to drive the adjusting ring to rotate to tighten the filter screen when the filter screen is loosened, and the driving member three includes a second shaft, a third gear, a fourth gear, a fourth spring, a rack and a plurality of fixing plates, the second shaft is rotatably connected in the cylinder along the radial direction of the cylinder, and the bottom end of the cylinder is provided with a second groove, one end of the second shaft extends to the second groove and is coaxially fixedly connected with the third gear, and the other end of the second shaft extends to the inner cavity and is coaxially fixedly connected with the fourth gear; a third sliding groove is provided on the inner wall of the inner cavity in a horizontal direction perpendicular to the second axis, the rack is slidably connected to the third sliding groove, the rack is located above the fourth gear and is meshedly connected to the fourth gear; a plurality of fixing plates are fixedly arranged on the rack in sequence along the length direction of the rack, and the fixing plate is located on a side of the fourth gear away from the third gear;

[0025] The two ends of the fourth spring are respectively fixedly arranged on the rack and the end wall of the third slide groove;

[0026] A third tooth groove is provided on the top surface of the adjustment ring in the circumferential direction. When the cover body is closed, the third gear is meshed and connected to the third tooth groove. When the top end of the sliding rod extends out of the fixed bar for a certain distance, the rotation path of the sliding rod passes through the fixed plate, and the fourth spring is used to drive the rack to reset toward the side away from the rotation direction of the rotating ring.

[0027] By adopting the above technical solution, when the cover is closed, the third gear is meshed and connected to the third tooth groove. At this time, if the filter is in a tensioned state, the slide rod will not extend out of the fixed bar, and the slide rod will not contact the fixed plate during the rotation of the rotating ring. At this time, the driving member three remains stationary; with the use time, the filter will gradually loosen, and the top of the slide rod will gradually extend out of the fixed bar. When the top of the slide rod extends out of the fixed bar for a certain distance, it proves that the filter needs to be tensioned in time, otherwise it will affect the scraping effect of the moving bar. At this time, the slide rod will abut against the fixed plate and drive the corresponding fixed plate to move. The fixed plate will drive the rack to move, and the rack will drive the third gear, the second shaft and the fourth gear to rotate synchronously. The third gear drives the adjusting ring to rotate by cooperating with the third tooth groove, so that the filter can be tensioned in time.

[0028] The technical effects of the present invention are mainly reflected in the following aspects:

[0029] 1. The present invention drives the rotating ring to rotate, and the scraper bar abuts against the filter screen to scrape the filter screen, so that the solid particles filtered out of the filter screen can be scraped and piled together in time, reducing the clogging area of ​​the filter screen, thereby improving the filtering efficiency and reducing the frequency of cleaning the filter screen;

[0030] 2. The operator of the present invention rotates the adjustment ring unidirectionally, and the rotation of the adjustment ring can pull several pull ropes at the same time. The pull ropes overcome the elastic force of the first spring and drive the slider to move outward. The support column fixed on the slider can drive the hanging ring to move outward, and finally the filter screen is tensioned. Only the tensioned filter screen can better fit the scraper strip for use. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of the cover body in the closed state of the embodiment of the present application.

[0032] Figure 2 It is a structural schematic diagram of the cover body of the embodiment of the present application in an open state.

[0033] Figure 3 is along Figure 1 Section view along line AA.

[0034] Figure 4 It is a schematic diagram of the structure of the propping member according to an embodiment of the present application.

[0035] Figure 5 yes Figure 4 Enlarged view of point B in the middle.

[0036] Figure 6 It is a schematic diagram of the structure of the control component of the embodiment of the present application.

[0037] Figure 7 yes Figure 6 Enlarged view of point C in the middle.

[0038] Figure 8 yes Figure 3 Enlarged view of point D in the middle.

[0039] Fig. 9 yes Figure 3 Enlarged view of point E in the middle.

[0040] Description of reference numerals: 1, cylinder; 11, feeding port; 12, liquid outlet pipe; 13, air blowing pipe; 14, inner cavity; 2, filter screen; 21, hanging ring; 3, opening member; 31, adjusting ring; 311, avoidance ring groove; 312, third tooth groove; 32, slider; 33, support column; 34, first spring; 35, pull rope; 4, mounting ring; 5, rotating scraper; 51, rotating ring; 511, second tooth groove; 52, scraper bar; 521, fixed bar; 522, moving bar; 523, third spring; 524, second slide groove; 525 , first gear; 526, slide bar; 527, first tooth groove; 528, groove; 6, cover body; 61, flange; 62, first groove; 63, first annular groove; 64, second annular groove; 65, first slide groove; 66, escape opening; 7, driving member 1; 71, cylinder; 72, connecting rod; 8, control member; 81, ratchet; 83, pawl; 84, second spring; 85, toggle rod; 91, motor; 92, second gear; 93, second shaft; 94, third gear; 95, fourth gear; 97, rack; 98, fixing plate. DETAILED DESCRIPTION

[0041] The following is combined with Figure 1-Figure 9 The present application is further described in detail to make the technical solution of the present application easier to understand and grasp.

[0042] The embodiment of the present application discloses a solid-liquid separation filter.

[0043] Reference Figure 1-Figure 3 A solid-liquid separation filter of this embodiment includes a cylinder 1 with an inner cavity 14, a driving member 7, a driving member 2, a filter screen 2, a propping member 3, a mounting ring 4, a rotating scraper 5 and a cover body 6. The cover body 6 is hinged at the bottom end of the cylinder 1. The driving member 7 drives the cover body 6 to flip. A feeding port 11 is opened at the top of the cylinder 1, and a liquid outlet is opened at the bottom end of the cover body 6.

[0044] Reference Figure 4 and Figure 5 The cover body 6 is provided with a propping member 3, which is used to prop the filter screen 2 open. The mounting ring 4 is detachably connected to the cover body 6. The mounting ring 4 is located above the filter screen 2. The mounting ring 4 is coaxially arranged with the filter screen 2 and is used to cover the circumferential edge of the filter screen 2. A gap is left between the mounting ring 4 and the cover body 6 for the filter screen 2 to move. The rotating scraper 5 includes a swivel 51 and a plurality of scraper strips 52. The swivel 51 is coaxially rotatably connected to the mounting ring 4. Both ends of the scraper strips 52 are arranged on the swivel 51. The scraper strips 52 are used to abut against the filter screen 2. The driving member 2 drives the swivel 51 to rotate.

[0045] Reference Figure 2By driving the rotating ring 51 to rotate, the scraper bar 52 abuts against the filter screen 2 to scrape the filter screen 2, so that the solid particles filtered out of the filter screen 2 can be scraped and piled together in time, reducing the blockage area of ​​the filter screen 2, thereby improving the filtering efficiency and reducing the frequency of cleaning the filter screen 2.

[0046] Reference Figure 1 The driving member 7 includes a cylinder 71 and a connecting rod 72. The cylinder 71 is fixedly arranged on the cylinder 1. One end of the connecting rod 72 is fixedly arranged on the bottom of the cover 6. The other end of the connecting rod 72 is hinged on the cylinder 1. The piston rod of the cylinder 71 is hinged on the connecting rod 72 at an angle downward. When the piston rod of the cylinder 71 is extended, the cover 6 is closed. When the piston rod of the cylinder 71 is retracted, the cover 6 is opened.

[0047] Reference Figure 1 The bottom end of the cylinder 1 and the top end of the cover 6 both have a circle of flanges 61. When the cover 6 is closed, the two flanges 61 can abut against each other, and the two flanges 61 can be further locked by the cooperation of bolts and nuts.

[0048] Reference Figure 4 and Figure 5 The support member 3 includes a control member 8, an adjusting ring 31, a plurality of sliders 32, a plurality of support pillars 33, a plurality of first springs 34 and a plurality of pull ropes 35. A first annular groove 63 and a second annular groove 64 are coaxially provided on the top surface of the cover body 6. The first annular groove 63 surrounds the second annular groove 64. The axial depth of the first annular groove 63 is greater than the axial depth of the second annular groove 64. The adjusting ring 31 is coaxially rotatably connected in the first annular groove 63.

[0049] Reference Figure 4 and Figure 5 A plurality of first slide grooves 65 are sequentially provided on the bottom wall of the second ring groove 64 along the circumferential direction, and the length direction of the first slide groove 65 is arranged along the radial direction of the second ring groove 64, and a plurality of sliders 32 are respectively slidably connected in the plurality of first slide grooves 65 one by one, and a plurality of support pillars 33 are respectively fixedly arranged on the slider 32 one by one, and a plurality of first springs 34 are respectively arranged in the plurality of first slide grooves 65 one by one, and the two ends of the first spring 34 are respectively abutted on the slider 32 and on the end wall of the first slide groove 65 close to the adjusting ring 31, and the first spring 34 is always in a compressed state; an avoidance opening 66 is provided on the end wall of the first slide groove 65 close to the adjusting ring 31, and an avoidance ring groove 311 for accommodating the pull rope 35 is provided on the inner wall of the adjusting ring 31, and one end of the pull rope 35 is fixed on the slider 32, and the other end of the pull rope 35 is fixed on the groove wall of the avoidance ring groove 311 after passing through the avoidance opening 66.

[0050] Reference Figure 4 and Figure 5The edge of the filter screen 2 is provided with a plurality of hanging rings 21 in sequence along the circumferential direction. The plurality of hanging rings 21 are hung on a plurality of support pillars 33 one by one. The control member 8 is used to control the rotation state of the adjusting ring 31 .

[0051] Reference Figure 4 and Figure 5 The operator rotates the adjusting ring 31 unidirectionally. The rotation of the adjusting ring 31 can pull several pull ropes 35 at the same time. The pull ropes 35 overcome the elastic force of the first spring 34 to drive the slider 32 to move outward. The support column 33 fixed on the slider 32 can drive the hanging ring 21 to move outward, and finally the filter screen 2 is tensioned. Only the tensioned filter screen 2 can better fit the scraper strip 52 for use.

[0052] Reference Figure 4 and Figure 5 The edge where the avoidance opening 66 is located is provided with a rounded corner. The rounded corner can guide the movement of the pull rope 35, reduce the wear of the pull rope 35, and increase the service life of the pull rope 35.

[0053] Reference Figure 6 and Figure 7 The control member 8 includes a ratchet 81, a first shaft, a pawl 83 and a second spring 84. A first groove 62 connected to the first ring groove 63 is provided on the outer wall of the cover body 6. The pawl 83 is rotatably connected in the first groove 62 through the first shaft. The ratchet 81 is provided on the outer wall of the adjustment ring 31 along the circumferential direction. The second spring 84 connects the pawl 83 and the cover body 6, driving the pawl 83 to rotate until it engages with the ratchet 81. A toggle rod 85 for hand force is provided on the outward side of the pawl 83.

[0054] Reference Figure 6 and Figure 7 The operator can disengage the pawl 83 from the ratchet 81 by toggling the toggle lever 85. Without the action of the pawl 83, the plurality of sliders 32 will move inward under the action of the first spring 34, thereby driving the filter screen 2 to be tightened, making it convenient for the operator to remove the filter screen 2.

[0055] Reference Figure 3 The scraper strip 52 includes a fixed strip 521, a movable strip 522 and a third spring 523. The two ends of the fixed strip 521 are respectively fixedly arranged on the rotating ring 51. The multiple fixed strips 521 are arranged on the rotating ring 51 in parallel with each other. A second slide groove 524 is opened on the bottom surface of the fixed strip 521 along the axial direction of the rotating ring 51. The movable strip 522 is slidably connected to the second slide groove 524. The bottom surface of the movable strip 522 is arranged in an arc shape along the length direction. The bottom surface of the movable strip 522 is used to abut against the filter screen 2. A groove 528 is opened on the top surface of the movable strip 522. The two ends of the third spring 523 abut against the bottom wall of the groove 528 and the top wall of the second slide groove 524 respectively.

[0056] Reference Figure 3The bottom end of the scraper strip 52 is arc-shaped, which can better fit the filter screen 2 and increase the screening area of ​​the filter screen 2. At the same time, the solid-liquid mixture will move toward the center of the filter screen 2, which can reduce the impact on the propping member 3.

[0057] Reference Figure 3 , Figure 8 and Fig. 9 Two first gears 525 are rotatably connected in the fixed bar 521, and the two first gears 525 are respectively located on both sides of the length direction of the moving bar 522. Two sliding rods 526 are slidably connected in the fixed bar 521 along the sliding direction parallel to the moving bar 522. The two sliding rods 526 are respectively located on both sides of the two first gears 525. The side surface of the sliding rod 526 facing the first gear 525 and the side surface of the moving bar 522 facing the first gear 525 are respectively provided with first tooth grooves 527. The first gear 525 is meshed and connected to the two first tooth grooves 527. When the filter screen 2 is loosened, the top end of the sliding rod 526 extends out of the fixed bar 521; when the filter screen 2 is tensioned, the sliding rod 526 is completely located in the fixed bar 521.

[0058] Reference Figure 3 , Figure 8 and Fig. 9 When the filter screen 2 is loosened, under the action of the third spring 523, the moving bar 522 will move downward, and the cooperation of the first gear 525 can drive the sliding bar 526 to move upward, thereby helping the operator to judge the state of the filter screen 2; when the filter screen 2 is tensioned, the tension of the filter screen 2 acts on the moving bar 522, driving the moving bar 522 to overcome the force of the third spring 523 and move upward. At this time, the sliding bar 526 moves downward and retracts into the fixed bar 521. At this time, the filter screen 2 and the moving bar 522 are completely fitted and pressed against each other. The contact force between the two can be changed by replacing the third spring 523 and changing the elastic force of the third spring 523, so that they are in a suitable state, which can improve the scraping effect between the moving bar 522 and the filter screen 2.

[0059] Reference Figure 2 , Figure 3 and Fig. 9 The second driving member includes a motor 91 and a second gear 92. Second tooth grooves 511 are sequentially opened on the top surface of the rotating ring 51 along the circumferential direction. The motor 91 is fixedly arranged on the cylinder 1. The output shaft of the motor 91 extends into the inner cavity 14 and is coaxially fixedly connected with the second gear 92. When the cover body 6 is closed, the rotating ring 51 is located directly below the inner cavity 14, the mounting ring 4 abuts against the bottom wall of the cylinder 1, and the second gear 92 is meshedly connected to the second tooth groove 511.

[0060] Reference Figure 2 , Figure 3 and Fig. 9The output shaft of the motor 91 rotates to drive the second gear 92 to rotate, and the rotation of the second gear 92 drives the rotating ring 51 to rotate in cooperation with the second tooth groove 511.

[0061] Reference Figure 2 , Figure 3 and Figure 8 , and also includes a driving member three, which is used to drive the adjusting ring 31 to rotate and tighten the filter screen 2 when the filter screen 2 is loosened. The driving member three includes a second shaft 93, a third gear 94, a fourth gear 95, a fourth spring, a rack 97 and a plurality of fixing plates 98. The second shaft 93 is rotatably connected to the cylinder body 1 along the radial direction of the cylinder body 1. A second groove is provided at the bottom end of the cylinder body 1. One end of the second shaft 93 extends to the second groove and is coaxially fixedly connected to the third gear 94. The other end of the second shaft 93 extends to the inner cavity 14 and is coaxially fixedly connected to the fourth gear 95. A third sliding groove is provided on the inner wall of the inner cavity 14 in a horizontal direction perpendicular to the second shaft 93. The rack 97 is slidably connected to the third sliding groove. The rack 97 is located above the fourth gear 95 and is meshedly connected to the fourth gear 95. A plurality of fixing plates 98 are fixedly arranged on the rack 97 in sequence along the length direction of the rack 97. The fixing plate 98 is located on the side of the fourth gear 95 away from the third gear 94.

[0062] Reference Figure 2 , Figure 3 and Figure 8 The two ends of the fourth spring are fixedly arranged on the rack 97 and the end wall of the third slide groove. The top surface of the adjusting ring 31 is provided with a third tooth groove 312 along the circumferential direction. When the cover 6 is closed, the third gear 94 is meshed and connected to the third tooth groove 312. When the top end of the slide bar 526 extends a certain distance from the fixing bar 521, the rotation path of the slide bar 526 passes through the fixing plate 98, and the fourth spring is used to drive the rack 97 to reset toward the side away from the rotation direction of the rotating ring 51.

[0063] Reference Figure 2 , Figure 3 and Figure 8When the cover 6 is closed, the third gear 94 is meshed and connected to the third tooth groove 312. At this time, if the filter screen 2 is in a tensioned state, the sliding rod 526 will not extend out of the fixing strip 521. During the rotation of the rotating ring 51, the sliding rod 526 will not contact the fixing plate 98. At this time, the driving member 3 remains stationary; with the use time, the filter screen 2 will gradually loosen. At this time, the top of the sliding rod 526 will gradually extend out of the fixing strip 521. When the top of the sliding rod 526 extends out of the fixing strip 521 for a certain distance, it proves that the filter screen 2 needs to be tensioned in time, otherwise it will affect the scraping effect of the moving strip 522. At this time, the sliding rod 526 will abut against the fixing plate 98, driving the corresponding fixing plate 98 to move, and the fixing plate 98 will drive the rack 97 to move. The rack 97 will drive the third gear 94, the second shaft 93 and the fourth gear 95 to rotate synchronously, and the third gear 94 drives the adjusting ring 31 to rotate by cooperating with the third tooth groove 312, so that the filter screen 2 can be tensioned in time.

[0064] Reference Figure 1 It should be added that there are multiple feeding ports 11, including a spray port and a material port. The spray port is used to spray cleaning liquid into the cylinder 1 to clean the cylinder 1, and the material port is used to feed a solid-liquid mixture.

[0065] Reference Figure 1 The liquid outlet is connected to a liquid outlet pipe 12, which is used to guide the liquid filtered out of the cover body 6. The cover body 6 is also connected to an air blowing pipe 13, which is located between the filter screen 2 and the liquid outlet pipe 12 and is used to blow air to the filter screen 2 to further improve the clogging of the filter screen 2.

[0066] Reference Fig. 9 The motor 91 may be a reduction motor or a stepping motor. The motor 91 is not driven all the time but is driven intermittently, which can minimize the wear between the filter screen 2 and the moving bar 522.

[0067] Of course, the above are only typical examples of the present application. In addition, the present application may have many other specific implementation methods. All technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present application.

Claims

1. A solid-liquid separation filter, characterized in that: The invention comprises a cylinder (1) with an inner cavity (14), a driving member 1 (7), a driving member 2, a filter screen (2), a propping member (3), a mounting ring (4), a rotating scraping member (5) and a cover (6); the cover (6) is hinged at the bottom end of the cylinder (1); the driving member 1 (7) drives the cover (6) to turn over; a feeding port (11) is provided at the top of the cylinder (1); and a liquid outlet is provided at the bottom end of the cover (6); The cover body (6) is provided with a propping member (3) therein, the propping member (3) being used to prop open the filter screen (2); the mounting ring (4) is detachably connected to the cover body (6); the mounting ring (4) is located above the filter screen (2); the mounting ring (4) is coaxially arranged with the filter screen (2) and is used to cover the circumferential edge of the filter screen (2); the rotating scraping member (5) comprises a rotating ring (51) and a plurality of scraping strips (52); the rotating ring (51) is coaxially rotatably connected to the mounting ring (4); the two ends of the scraping strips (52) are arranged on the rotating ring (51); the scraping strips (52) are used to abut against the filter screen (2); the second driving member drives the rotating ring (51) to rotate; The opening member (3) comprises a control member (8), an adjusting ring (31), a plurality of sliders (32), a plurality of supporting pillars (33), a plurality of first springs (34) and a plurality of pull ropes (35); a first annular groove (63) and a second annular groove (64) are coaxially provided on the top surface of the cover body (6); the first annular groove (63) surrounds the second annular groove (64); the axial depth of the first annular groove (63) is greater than the axial depth of the second annular groove (64); and the adjusting ring (31) is coaxially rotatably connected in the first annular groove (63); A plurality of first slide grooves (65) are sequentially provided on the bottom wall of the second annular groove (64) along the circumferential direction, the length direction of the first slide grooves (65) is arranged along the radial direction of the second annular groove (64), a plurality of sliders (32) are respectively slidably connected in the plurality of first slide grooves (65) in a one-to-one manner, a plurality of support columns (33) are respectively fixedly arranged on the sliders (32) in a one-to-one manner, a plurality of first springs (34) are respectively arranged in the plurality of first slide grooves (65) in a one-to-one manner, and both ends of the first springs (34) are respectively abutted against the sliders (32) to and the first slide groove (65) is on an end wall close to the adjusting ring (31), the first spring (34) is always in a compressed state; an escape opening (66) is provided on an end wall close to the adjusting ring (31), an escape ring groove (311) for accommodating a pull rope (35) is provided on the inner wall of the adjusting ring (31), one end of the pull rope (35) is fixed on the slider (32), and the other end of the pull rope (35) is fixed on the groove wall of the escape ring groove (311) after passing through the escape opening (66); The edge of the filter screen (2) is provided with a plurality of hanging rings (21) in sequence along the circumferential direction, and the plurality of hanging rings (21) are hung one by one on a plurality of support pillars (33), and the control member (8) is used to control the rotation state of the adjustment ring (31); The scraper strip (52) comprises a fixed strip (521), a movable strip (522) and a third spring (523); the two ends of the fixed strip (521) are respectively fixedly arranged on the rotating ring (51); a plurality of fixed strips (521) are arranged on the rotating ring (51) in parallel with each other; a second slide groove (524) is provided on the bottom surface of the fixed strip (521) along the axial direction of the rotating ring (51); the movable strip (522) is slidably connected to the second slide groove (524); the bottom surface of the movable strip (522) is arranged in an arc shape along the length direction; the bottom surface of the movable strip (522) is used to abut against the filter screen (2); a groove (528) is provided on the top surface of the movable strip (522); and the two ends of the third spring (523) are respectively abutted against the bottom wall of the groove (528) and the top wall of the second slide groove (524); Two first gears (525) are rotatably connected in the fixed bar (521), and the two first gears (525) are respectively located on both sides of the length direction of the moving bar (522). Two sliding rods (526) are slidably connected in the fixed bar (521) along a sliding direction parallel to the moving bar (522), and the two sliding rods (526) are respectively located on both sides of the two first gears (525). The side surface of the sliding rod (526) facing the first gear (525) and the side surface of the moving bar (522) facing the first gear (525) are respectively provided with first tooth grooves (527). The first gear (525) is meshed and connected to the two first tooth grooves (527). When the filter screen (2) is loosened, the top end of the sliding rod (526) extends out of the fixed bar (521); when the filter screen (2) is tightened, the sliding rod (526) is completely located in the fixed bar (521); The invention also comprises a third driving member, wherein the third driving member is used to drive the adjusting ring (31) to rotate so as to tighten the filter screen (2) when the filter screen (2) is loosened, and the third driving member comprises a second shaft (93), a third gear (94), a fourth gear (95), a fourth spring, a rack (97) and a plurality of fixing plates (98). The second shaft (93) is connected to the cylinder (1) by rotating along the radial direction of the cylinder (1). A second groove is provided at the bottom end of the cylinder (1). One end of the second shaft (93) extends to the second groove and is fixedly connected to the third gear (94) coaxially. The second shaft (93) is connected to the cylinder (1) by rotating along the radial direction of the cylinder (1). 3) extends to the inner cavity (14) and is coaxially fixedly connected to the fourth gear (95); a third sliding groove is provided on the inner wall of the inner cavity (14) along a horizontal direction perpendicular to the second axis (93), and the rack (97) is slidably connected to the third sliding groove, and the rack (97) is located above the fourth gear (95) and meshingly connected to the fourth gear (95); a plurality of fixing plates (98) are fixedly arranged on the rack (97) in sequence along the length direction of the rack (97), and the fixing plates (98) are located on the side of the fourth gear (95) away from the third gear (94); The two ends of the fourth spring are respectively fixedly arranged on the rack (97) and the end wall of the third slide groove; A third tooth groove (312) is provided on the top surface of the adjustment ring (31) in the circumferential direction. When the cover (6) is closed, the third gear (94) is meshedly connected to the third tooth groove (312). When the top end of the slide bar (526) extends a certain distance out of the fixed bar (521), the rotation path of the slide bar (526) passes through the fixed plate (98), and the fourth spring is used to drive the rack (97) to reset toward the side away from the rotation direction of the rotating ring (51).

2. A solid-liquid separation filter according to claim 1, characterized in that: The edge where the avoidance opening (66) is located is provided with a rounded corner.

3. A solid-liquid separation filter according to claim 1, characterized in that: The control member (8) comprises a ratchet (81), a first shaft, a ratchet pawl (83) and a second spring (84); a first groove (62) communicating with the first ring groove (63) is provided on the outer wall of the cover body (6); the ratchet pawl (83) is rotatably connected to the first groove (62) via the first shaft; the ratchet (81) is provided on the outer wall of the adjustment ring (31) along the circumferential direction; the second spring (84) connects the ratchet pawl (83) and the cover body (6) to drive the ratchet pawl (83) to rotate until it is engaged with the ratchet (81); and a toggle rod (85) for hand force application is provided on the outward side of the ratchet pawl (83).

4. A solid-liquid separation filter according to claim 1, characterized in that: The second driving member comprises a motor (91) and a second gear (92); second tooth grooves (511) are sequentially provided on the top surface of the rotating ring (51) along the circumferential direction; the motor (91) is fixedly arranged on the cylinder (1); the output shaft of the motor (91) extends into the inner cavity (14) and is coaxially fixedly connected with the second gear (92); when the cover body (6) is closed, the second gear (92) is meshedly connected with the second tooth groove (511).

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