A filter device in a filter centrifuge

Abstract

The application discloses a filtering device in a filtering centrifuge, which comprises an inner spiral cylinder and an annular supporting plate, a cleaning filter cylinder is arranged outside the inner spiral cylinder on the annular supporting plate, at least one filter cloth cleaning cavity, at least one filter cloth tensioning cavity and at least one filter cloth transmission cavity are arranged on the cleaning filter cylinder in a circumferential direction, a pair of guide rollers are arranged on both sides of the bottom opening of the filter cloth cleaning cavity, the filter cloth tensioning cavity and the filter cloth transmission cavity respectively, and a scraper is arranged between the pair of guide rollers, a transmission shaft and a filter cloth pressing device are arranged in the filter cloth transmission cavity, the transmission shaft extends out of the filter cloth transmission cavity and is provided with a driven gear, a driving gear meshing with the driven gear is arranged in the inner spiral cylinder through a gear base, a filter cloth cleaning device is arranged in the filter cloth cleaning cavity, and a filter cloth tensioning device is arranged in the filter cloth tensioning cavity. The filtering centrifuge can clean the filter cloth on line, and the phenomenon that the filter cloth is blocked and cannot be drained is greatly reduced.

Description

Technical Field

[0001] This invention relates to a filtration centrifuge, and more particularly to a filtration device in a filtration centrifuge. Background Technology

[0002] Currently, traditional filter centrifuges (whether horizontal or vertical) do not have online filter cloth cleaning devices, making it impossible to clean the filter cloth online. As a result, after a period of use, the mesh (liquid passage holes) on the filter cloth will become clogged, making it impossible to deliquinate the material. Therefore, the machine must be shut down and the filter cloth replaced. This increases maintenance costs on the one hand, and the replacement of filter cloth is troublesome and time-consuming, reducing production capacity and increasing production costs on the other hand. Summary of the Invention

[0003] One technical problem to be solved by the present invention is to provide a filtration device in a filter centrifuge that can clean the filter cloth online.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: a filtration device in a centrifuge, the structure of which includes: a base, an inner drive shaft, a main shaft movably disposed in the base, and a differential and a housing disposed on the base. The main shaft is a hollow structure, and the inner drive shaft is movably disposed in the main shaft. Corresponding ends of the main shaft and the inner drive shaft are connected to corresponding output parts of the differential. An inner spiral connecting flange is provided on the other end of the inner drive shaft, and an annular support plate is provided on the other end of the main shaft. An inner spiral cylinder is provided on the inner spiral connecting flange, and inner spiral blades are provided on the inner spiral cylinder. A cleaning filtration device is provided on the annular support plate, the cleaning filtration device including: a cleaning filtration cylinder sleeved on the outside of the inner spiral blades. The cleaning filter cartridge includes: a cleaning filter body with one end mounted on an annular support plate; an annular cover plate at the other end of the cleaning filter body; several liquid passage holes on the cleaning filter body; at least one columnar protrusion for cleaning, at least one columnar protrusion for tensioning, and at least one columnar protrusion for filter cloth transmission arranged circumferentially on the cleaning filter body; all columnar protrusions for cleaning, tensioning, and filter cloth transmission protrusions protrude outwards and are arranged axially; the columnar protrusions for cleaning have a filter cloth cleaning chamber with a bottom opening along the axial direction; the columnar protrusions for tensioning have a filter cloth tensioning chamber with a bottom opening along the axial direction; and the columnar protrusions for filter cloth transmission have a filter cloth transmission chamber with a bottom opening along the axial direction. Several columnar protrusions for tensioning are provided that communicate with the corresponding filter cloth tensioning chambers. The filter cloth drive columnar protrusion has several liquid passage holes communicating with the corresponding filter cloth drive chamber. The cleaning columnar protrusion has several overflow holes on at least one side near the cleaning filter cylinder. The annular cover plate is provided with sealing caps that cooperate with the corresponding ports of the filter cloth cleaning chamber, the filter cloth tensioning chamber, and the filter cloth drive chamber. The front ends of the cleaning columnar protrusion, the tensioning columnar protrusion, and the filter cloth drive columnar protrusion extend beyond the cleaning filter cylinder, thereby forming a discharge port between the front end of the cleaning columnar protrusion and the front end of the tensioning columnar protrusion, between the front end of the cleaning columnar protrusion and the front end of the filter cloth drive columnar protrusion, and between the front end of the tensioning columnar protrusion and the front end of the filter cloth drive columnar protrusion.The cleaning filter cylinder contains a filter cloth support cylinder with several liquid passage holes. The filter cloth cleaning chamber, filter cloth tensioning chamber, and filter cloth transmission chamber each have a pair of axially arranged guide rollers and a scraper located between them at their bottom openings. The filter cloth transmission chamber contains a transmission shaft for driving the filter cloth rotation and a filter cloth pressing device that cooperates with the transmission shaft. The transmission shaft extends from a corresponding sealing cover and has a driven gear. The inner spiral cylinder contains a driving gear that meshes with the driven gear via a hollow gear seat. The feed pipe and washing pipe are movably inserted through the gear seat. The filter cloth cleaning chamber contains a filter cloth cleaning device, and the filter cloth tensioning chamber contains a filter cloth tensioning device.

[0005] As a preferred embodiment, in the filtration device of the aforementioned centrifuge, the cleaning filter cylinder is provided with a pair of oppositely arranged cleaning columnar protrusions, a pair of oppositely arranged tensioning columnar protrusions, and a pair of oppositely arranged filter cloth driving columnar protrusions along the circumferential direction. This results in the filter cloth cleaning chamber having a filter cloth tensioning chamber and a filter cloth driving chamber on both sides, the filter cloth tensioning chamber having a filter cloth driving chamber and a filter cloth cleaning chamber on both sides, and the filter cloth driving chamber having a filter cloth tensioning chamber and a filter cloth cleaning chamber on both sides. The pair of filter cloth cleaning chambers, the pair of filter cloth tensioning chambers, and the pair of filter cloth driving chambers are uniformly arranged circumferentially.

[0006] As a preferred embodiment, in the filtration device of the aforementioned filtration centrifuge, the corresponding end of the filter cloth support cylinder is provided with an inwardly arranged annular limiting edge, and the annular support plate is provided with an axial blocking mechanism that cooperates with the annular limiting edge.

[0007] As a preferred embodiment, in the filtration device of the aforementioned centrifuge, the axial blocking mechanism includes: a pin mounted on an annular support plate, a roller on the pin via a bearing that engages with the annular limiting edge, an annular groove at the end of the pin, and a retaining spring in the annular groove at the end of the pin.

[0008] As a preferred embodiment, in the filtration device of the aforementioned centrifuge, the filter cloth cleaning device includes: an ultrasonic vibrating rod; the filter cloth cleaning chamber is provided with a cylindrical cleaning chamber surrounded by several annularly arranged support rods; one end of each support rod is movably mounted in a corresponding sealing cover via a cleaning chamber shaft head; a shaft head seal is provided between the cleaning chamber shaft head and the corresponding sealing cover; the other end of each support rod is movably mounted in a corresponding port of the filter cloth cleaning chamber via a cleaning chamber bushing; and a bushing seal is provided between the cleaning chamber bushing and the corresponding port of the filter cloth cleaning chamber; the ultrasonic vibrating rod extends from the cleaning chamber bushing into the cylindrical cleaning chamber and is fixed at the corresponding port of the filter cloth cleaning chamber.

[0009] As a preferred embodiment, in the filtration device of the aforementioned centrifuge, the ultrasonic vibrating rod is further fitted with a protective sleeve.

[0010] As a preferred embodiment, in the filtration device of the aforementioned centrifuge, the filter cloth tensioning device includes: a tensioning roller, with tensioning support shafts at both ends of the tensioning roller, tensioning support sleeves mounted on the tensioning support shafts via bearings, and a tensioning support seal between the tensioning support shafts and the tensioning support sleeves. A tensioning chamber cover plate is provided in the corresponding port of the filter cloth tensioning chamber. Tensioning sliding grooves, arranged radially relative to the cleaning filter cylinder, are respectively opened on the tensioning chamber cover plate and the corresponding sealing cover. The two sidewalls of the tensioning sliding grooves are parallel to each other. The tensioning support sleeves are movably mounted in the corresponding tensioning sliding grooves, allowing the tensioning roller to move radially along the cleaning filter cylinder.

[0011] As a preferred embodiment, in the filtration device of the aforementioned centrifuge, the tension roller is provided with a centrally symmetrically arranged tension arc-shaped roller surface.

[0012] As a preferred embodiment, in the filtration device of the aforementioned filtration centrifuge, the specific structure of the filter cloth pressing device includes: a pair of pressing rollers, which are arranged opposite to each other on both sides of the drive shaft in the filter cloth transmission cavity; the drive shaft is provided with a centrally symmetrically arranged convex transmission arc-shaped roller surface, and the pressing roller is provided with a concave pressing arc-shaped roller surface that cooperates with the transmission arc-shaped roller surface.

[0013] As a preferred embodiment, in the filtration device of the aforementioned centrifuge, the specific installation method of the pressure roller is as follows: the columnar protrusion for filter cloth transmission is provided with pressure roller mounting holes on both sides, and a pressure mounting chamber arranged around the pressure roller mounting holes. The pressure mounting chamber is composed of a chamber body formed by a pair of side plates and a pair of end plates arranged on the columnar protrusion for filter cloth transmission around the pressure roller mounting holes, and a top plate arranged on the chamber body; the two end plates of the pressure mounting chamber are respectively provided with pressure adjustment grooves arranged radially relative to the transmission shaft, and adjustment locking threaded holes communicating with the pressure adjustment grooves. The two ends of the pressure roller are respectively movably arranged in the pressure adjustment grooves on the corresponding end plates of the corresponding pressure mounting chambers, and pressure adjustment screws are provided in the adjustment locking threaded holes.

[0014] The beneficial effects of this invention are as follows: The filtration device in the centrifuge of this invention utilizes the speed difference between the main shaft and the inner transmission shaft to drive the active gear to rotate, which in turn drives the filter cloth wound around the transmission shaft to rotate via the driven gear and the transmission shaft. The filter cloth is cleaned when it passes through the filter cloth cleaning chamber. Moreover, the scraper can pre-scrape off most of the material on the filter cloth before it enters the filter cloth cleaning chamber, so that the filter cloth can be cleaned more thoroughly in the filter cloth cleaning chamber, reducing the phenomenon of not being able to dewater due to the mesh of the filter cloth being blocked, and realizing continuous filtration and separation of materials (especially small particulate materials) to reduce the moisture content of the obtained solids. At the same time, the cylindrical cleaning chamber surrounded by several annularly arranged support rods reduces the contact area between the filter cloth and the cylindrical cleaning chamber, thereby increasing the cleaning and filtration area and making the filter cloth cleaning more efficient. By periodically replenishing the cleaning liquid in the cylindrical cleaning chamber and replacing the already turbid cleaning liquid, the reliability of the cleaning quality is ensured. Because the contact area between the filter cloth and the cylindrical cleaning chamber is reduced, the impact on the rotation of the filter cloth is reduced, making the rotation of the filter cloth smoother. Furthermore, during rotation, the tensioning shaft remains taut under centrifugal force, ensuring the filter cloth remains firmly attached to the drive shaft. Additionally, the centrally symmetrical arc-shaped rollers on the tensioning shaft correct the filter cloth's position during rotation, guaranteeing it stays centered on the rollers and reducing the probability of jamming or stacking, thus ensuring reliable rotation. Moreover, the centrally symmetrically arranged arc-shaped rubber rollers on the drive shaft increase friction between the shaft and the filter cloth, allowing for smooth, slip-free rotation. Attached Figure Description

[0015] Figure 1 This is a longitudinal sectional view of the horizontal filter centrifuge described in this invention.

[0016] Figure 2 This is a cross-sectional structural diagram of the horizontal filter centrifuge described in this invention.

[0017] Figure 3 yes Figure 2 A schematic diagram of the AA cross-sectional structure.

[0018] Figure 4 yes Figure 2 Schematic diagram of the BB cross-section structure.

[0019] Figure 5 yes Figure 2 A schematic diagram of the CC cross-section structure.

[0020] Figure 6 yes Figure 2 Schematic diagram of the EE cross-section structure.

[0021] Figure 7 and Figure 8This is a three-dimensional structural diagram of the cleaning and filtration device.

[0022] Figure 9 yes Figure 1 A magnified structural diagram of section H in the middle.

[0023] Figure 10 This is a schematic diagram of the three-dimensional structure of the filter cloth support cylinder.

[0024] Figure 11 This is a schematic diagram of the filter cloth installation structure.

[0025] Figures 1 to 11 The reference numerals in the attached diagrams are as follows: 1. Base; 10. Housing; 100. Side cover; 102. Liquid outlet; 103. Solid outlet; 11. Feed pipe; 16. Liquid replenishment pipe; 161. Liquid replenishment connection pipe; 18. Washing pipe; 2. Differential; 3. Inner drive shaft; 300. Inner spiral connection flange; 301. Inner spiral cylinder; 302. Inner spiral blade; 303. Feed through hole; 304. Washing through hole; 305. Feed baffle; 3051. Feed chamber; 306. Washing baffle; 3061. Washing chamber; 308. Gear seat. 3081. Liquid replenishment chamber; 3082. Drive gear; 4. Main shaft; 5. Cleaning filter device; 50. Cleaning filter cylinder; 51. Columnar protrusion for cleaning; 510. Filter cloth cleaning chamber; 5101. Ultrasonic vibrator; 5102. Support rod; 51021. Cleaning chamber shaft head; 51022. Cleaning chamber bushing; 51023. Bearing pressure plate; 5103. Protective sleeve; 511. Cleaning chamber bearing cover; 512. Cleaning chamber sealing cover; 5121. Liquid replenishment inlet channel; 516. Overflow hole; 52. Columnar protrusion for filter cloth transmission; 5 20. Filter cloth drive chamber; 5201. Drive shaft; 52011. Bearing pressure plate; 52012. Driven gear; 5202. Pressure roller; 5204. Pressure mounting chamber; 521. Drive chamber cover; 522. Drive chamber sealing cover; 523. Side plate; 524. End plate; 525. Top plate; 526. Pressure adjusting screw; 53. Tensioning columnar protrusion; 530. Filter cloth tensioning chamber; 5301. Tensioning roller; 53011. Tensioning support shaft; 5302. Tensioning support sleeve; 5303. Tensioning roller bearing cover plate; 531. Tensioning... 532. Tensioning chamber sealing cover; 54. Guide roller; 55. Filter cloth support cylinder; 550. Liquid passage hole; 551. Annular limiting edge; 555. Pin shaft; 556. Bearing; 557. Roller; 558. Snap ring; 56. Scraper; 57. Annular support plate; 573. First annular retaining edge; 58. Annular cover plate; 583. Second annular retaining edge; 591. First discharge port; 592. Second discharge port; 593. Third discharge port; 594. Fourth discharge port; 595. Fifth discharge port; 596. Sixth discharge port; 9. Filter cloth.

[0026] Figure 12 This is a schematic diagram of the longitudinal section of the filter cloth in a vertical filter centrifuge.

[0027] Figure 13 yes Figure 1 A partially enlarged structural diagram viewed from above.

[0028] Figures 12 to 13 The attached diagram is labeled as follows: 50, cleaning filter cylinder; 500, material pusher scraper; 501, dry material outlet. Detailed Implementation

[0029] The following is in conjunction with the appendix Figures 1 to 13 The present invention describes in detail the specific implementation scheme of the filtration device in the filtration centrifuge. Example 1:

[0030] like Figure 1 As shown, the present invention discloses a horizontal filtration centrifuge, wherein the specific structure of the filtration device includes: a base 1, an inner drive shaft 3, a main shaft 4 movably mounted on the base 1, a differential 2 and a housing 10 mounted on the base 1. The main shaft 4 is a hollow structure, and the inner drive shaft 3 is movably mounted in the main shaft 4 through bearings (this is conventional technology in the art and will not be described further here). The corresponding ends of the inner drive shaft 3 and the main shaft 4 are connected to the corresponding output parts of the differential 2 (this is conventional technology in the art and will not be described further here). An inner spiral connecting flange 300 is provided on the other end of the inner drive shaft 3, and an annular support plate 57 is provided on the other end of the main shaft 4. An inner spiral cylinder 301 is provided on the inner spiral connecting flange 300, and inner spiral blades 302 are provided on the inner spiral cylinder 301. A feed baffle 305 and a washing baffle 306 are provided from the inside to the outside of the inner spiral cylinder 301, such that the inner spiral cylinder 301 is positioned within the feed baffle 305. An inner feeding chamber 3051 is formed, and a washing chamber 3061 is formed between the feeding baffle 305 and the washing baffle 306. The inner spiral cylinder 301 has a feeding through-hole 303 communicating with the feeding chamber 3051 and a washing through-hole 304 communicating with the washing chamber 3061 (this is conventional technology in the art and will not be described further here). A side cover 100 is provided on the housing 10. A feed pipe 11, a replenishment pipe 16, and a washing pipe 18 are provided in the 100. The inner end of the feed pipe 11 passes through the washing baffle 306 and the feed baffle 305 and extends into the feed chamber 3051. The inner end of the washing pipe 18 passes through the washing baffle 306 and extends into the washing chamber 3061. A cleaning and filtering device 5 is provided on the annular support plate 57. The cleaning and filtering device 5 includes a cleaning and filtering cylinder sleeved on the outside of the inner spiral blade 302, such as... Figure 2 , Figure 7 and Figure 8As shown, the cleaning filter cylinder includes: a cleaning filter cylinder body 50 with one end mounted on the annular support plate 57; an annular cover plate 58 mounted on the other end of the cleaning filter cylinder body 50; a plurality of liquid passage holes (common technology in the art, not described in detail here); and a pair of opposing columnar protrusions 51 for cleaning, a pair of opposing columnar protrusions 53 for tensioning, and a pair of opposing columnar protrusions 52 for filter cloth transmission arranged circumferentially on the cleaning filter cylinder body 50. All the protruding parts 52 protrude outwards and are arranged axially. The columnar protrusion 51 for cleaning has a filter cloth cleaning chamber 510 with a bottom opening along the axial direction. The columnar protrusion 53 for tensioning has a filter cloth tensioning chamber 530 with a bottom opening along the axial direction. The columnar protrusion 52 for filter cloth transmission has a filter cloth transmission chamber 520 with a bottom opening along the axial direction. The filter cloth cleaning chamber 510, the filter cloth tensioning chamber 530, and the filter cloth transmission chamber 520 are each provided with a pair of axially arranged guide rollers 54 at their bottom openings, and a scraper 56 located between the pair of guide rollers 54. (The specific structure is conventional technology in this field and will not be described in detail here). The pair of columnar protrusions 51 for cleaning, the pair of columnar protrusions 53 for tensioning, and the pair of columnar protrusions 52 for filter cloth transmission are evenly arranged circumferentially, so that the pair of filter cloth cleaning chambers 510, the pair of filter cloth tensioning chambers 530, and the pair of filter cloth transmission chambers 520 are evenly arranged circumferentially. Furthermore, the filter cloth cleaning chamber 510 is flanked by the filter cloth tensioning chamber 530 and the filter cloth transmission chamber 520 on both sides, the filter cloth tensioning chamber 530 is flanked by the filter cloth cleaning chamber 510 and the filter cloth transmission chamber 520 on both sides, and the filter cloth transmission chamber 520 is flanked by the filter cloth cleaning chamber 510 and the filter cloth transmission chamber 520 on both sides. The filter cloth includes a washing chamber 510 and a filter cloth tensioning chamber 530. The columnar protrusions 51 for washing have several overflow holes 516 on both sides near the washing filter cylinder 50. The columnar protrusions 53 for tensioning have several liquid passage holes communicating with the corresponding filter cloth tensioning chambers 530 (this is conventional technology in the art and will not be described further here). The columnar protrusions 52 for filter cloth transmission have several liquid passage holes communicating with the corresponding filter cloth transmission chambers 520 (this is conventional technology in the art and will not be described further here). The annular cover plate 58 has corresponding ports for the filter cloth washing chamber 510. Figure 3 The cleaning chamber sealing cover 512, which matches the right end port of the filter cloth tensioning chamber 530, and the corresponding port of the filter cloth tensioning chamber 530. Figure 5 The tensioning cavity sealing cap 532, which matches the right end port of the filter cloth transmission cavity, and the corresponding port of the filter cloth transmission cavity. Figure 4 The transmission cavity sealing cover 522 that matches the right end port of the filter cloth transmission (the corresponding end of the columnar protrusion 51 for cleaning, the columnar protrusion 53 for tensioning, and the columnar protrusion 52 for filter cloth transmission) Figure 8 The right end of the columnar protrusion 51 extends beyond the cleaning filter cylinder 50, thereby forming a second discharge port 592 and a fifth discharge port 595 between the right end of the cleaning columnar protrusion 51 and the right end of the tensioning columnar protrusion 53; a third discharge port 593 and a sixth discharge port 596 are formed between the right end of the cleaning columnar protrusion 51 and the right end of the filter cloth drive columnar protrusion 52; and a first discharge port 591 and a fourth discharge port 594 are formed between the right end of the tensioning columnar protrusion 53 and the right end of the filter cloth drive columnar protrusion 52. The cleaning filter cylinder 50 is provided with... Figure 10 The filter cloth support cylinder 55 shown has several liquid passage holes 550. The corresponding ends of the filter cloth support cylinder 55 ( Figure 1 An annular limiting edge 551 is provided inward from the left end of the ring. An axial blocking mechanism that cooperates with the annular limiting edge 551 is provided on the annular support plate 57. Figure 9 As shown, the axial blocking mechanism includes: a pin 555 with one end set in the annular support plate 57; a roller 557 (a common technique in the art, not described in detail here) that cooperates with the annular limiting edge 551 is provided on the pin 555 via a bearing 556; an annular groove is provided at the end of the pin 555; and a retaining spring 558 (also called a shaft elastic retaining ring) is provided in the annular groove at the end of the pin 555. Figure 4 As shown, the filter cloth transmission cavity 520 is provided with a transmission shaft 5201 for driving the filter cloth 9 to rotate and a filter cloth pressing device that cooperates with the transmission shaft 5201. The transmission shaft 5201 is provided with a centrally symmetrically arranged convex transmission arc-shaped rubber roller surface (which is a conventional technology in the art and will not be described in detail here). The specific arrangement of the transmission shaft 5201 is as follows: one end of the transmission shaft 5201 ( Figure 1 , Figure 4 The left end of the drive shaft 5201 is movably mounted in the left port of the filter cloth drive cavity 520 via a bearing (this is conventional technology in the art and will not be described in detail here). An oil seal and an O-ring (this is conventional technology in the art and will not be described in detail here) are provided between the left end of the drive shaft 5201 and the inner side of the bearing and the left port of the filter cloth drive cavity 520. A drive cavity cover 521 is provided on the left port of the filter cloth drive cavity 520. The other end of the drive shaft 5201 ( Figure 1 , Figure 4The right end of the transmission shaft 5201 is movably mounted in the transmission cavity sealing cover 522 at the right end port of the filter cloth transmission cavity 520 via a bearing. An oil seal (a common technique in the art, not described further here) is provided between the right end of the transmission shaft 5201 and the transmission cavity sealing cover 522 on the inner side of the bearing. A bearing pressure plate 52011 is also provided on the transmission cavity sealing cover 522, with a mounting through hole for engaging with the transmission shaft 5201. The right end of the transmission shaft 5201 passes through the transmission cavity sealing cover 522 and the bearing pressure plate 52011, and is then fitted with a driven gear 52012. A drive gear 3082, meshing with the driven gear 52012, is provided in the inner spiral cylinder 301 via a hollow gear seat 308. The feed pipe 11, the liquid replenishment pipe 16, and the washing pipe 18 are movably mounted in the gear seat 308. Figures 6 to 8 As shown, the filter cloth pressing device includes: a pair of pressing rollers 5202 arranged opposite to each other on both sides of the drive shaft 5201 in the filter cloth drive cavity 520. The specific installation method of the pressing rollers 5202 is as follows: the columnar protrusion 52 for filter cloth drive has pressing roller mounting holes on both sides; the columnar protrusion 52 for filter cloth drive has a pressing chamber 5204 surrounding the pressing roller mounting holes; the pressing chamber 5204 is a chamber body formed by a pair of side plates 523 and a pair of end plates 524 arranged on the columnar protrusion 52 for filter cloth drive surrounding the pressing roller mounting holes. The top plate 525 is mounted on the chamber body; the two end plates 524 of the pressing chamber 5204 are respectively provided with pressing adjustment grooves arranged radially relative to the drive shaft 5201 and adjustment locking threaded holes communicating with the pressing adjustment grooves (this is conventional technology in the art and will not be described in detail here). The two ends of the pressing roller 5202 are respectively movably mounted in the pressing adjustment grooves on the corresponding end plates 524 of the corresponding pressing chamber 5204, and the adjustment locking threaded holes are provided with pressing adjustment screws 526; the filter cloth cleaning chamber 510 is provided with a filter cloth cleaning device, such as... Figure 3 As shown, the specific structure of the filter cloth cleaning device includes: an ultrasonic vibrating rod 5101; a cylindrical cleaning chamber formed by several annularly arranged support rods 5102 is provided in the filter cloth cleaning chamber 510; one end of each support rod 5102 ( Figure 1 and Figure 3 The right end of the filter cloth cleaning chamber 510 is movably mounted in the cleaning chamber sealing cover 512 via a cleaning chamber shaft head 51021. The cleaning chamber sealing cover 512 has a cleaning mounting hole that mates with the cleaning chamber shaft head 51021. The cleaning chamber shaft head 51021 is sealed through the cleaning mounting hole of the cleaning chamber sealing cover 512 by an oil seal (this is conventional technology in the art and will not be described further here). A bearing pressure plate 51023 is provided on the right end port of the filter cloth cleaning chamber 510; the other end of all support rods 5102 ( Figure 1 and Figure 3 A cleaning chamber sleeve 51022 is provided at the left end of the filter cloth cleaning chamber 510. The cleaning chamber sleeve 51022 is movably mounted in the left end port of the filter cloth cleaning chamber 510 via a pair of bearings. Oil seals (common technology in this field, not described further here) are provided on both sides of the pair of bearings and at the left end port of the filter cloth cleaning chamber 510. A cleaning chamber bearing cover 511 is provided on the left end port of the filter cloth cleaning chamber 510. The cleaning chamber bearing cover 511 has a vibrator mounting hole that mates with the ultrasonic vibrator 5101. The ultrasonic vibrator 5101 passes through the vibrator mounting hole and the cleaning chamber sleeve 51022 in sequence and extends into the cylindrical cleaning chamber. Furthermore, the ultrasonic... The ultrasonic vibrating rod 5101 is fixed to the bearing cover 511 of the cleaning chamber (this is conventional technology in the art and will not be described in detail here). A protective sleeve 5103 is also fitted onto the ultrasonic vibrating rod 5101 to prevent it from colliding with the support rod 5102. The cleaning chamber sealing cover 512 is also provided with a liquid replenishment channel 5121. The gear seat 308 is provided with a liquid replenishment chamber 3081 communicating with the liquid replenishment pipeline 16. A liquid replenishment port is opened in the liquid replenishment chamber 3081. A liquid replenishment connecting pipe 161 connects the liquid replenishment channel 5121 to the liquid replenishment port of the liquid replenishment chamber 3081. A filter cloth tensioning device is provided in the filter cloth tensioning chamber 530, such as... Figure 5 As shown, the filter cloth tensioning device includes: a tensioning roller 5301 symmetrically arranged with a tensioning arc-shaped roller surface in the center; tensioning support shafts 53011 are respectively provided at both ends of the tensioning roller 5301; tensioning support sleeves 5302 are respectively sleeved on the tensioning support shafts 53011 through a pair of bearings; tensioning support sleeves 5302 are provided on the tensioning support sleeves 5302; and an oil seal (which is conventional technology in the art and will not be described in detail here) is also provided between the tensioning support shafts 53011 and the tensioning support sleeves 5302 as a tensioning support seal. A tensioning chamber cover plate 531 is provided on the left end port of the fabric tensioning chamber 530. The tensioning chamber sealing cover 532 and the corresponding tensioning chamber cover plate 531 are provided with tensioning sliding grooves arranged radially relative to the cleaning filter cylinder 50. The two side walls of the tensioning sliding grooves are parallel to each other (which is a conventional technique in the art and will not be described in detail here). The tensioning support sleeve 5302 is movably disposed in the tensioning sliding groove of the corresponding tensioning chamber cover plate 531 or tensioning chamber sealing cover 532, so that the tensioning roller 5301 can move radially along the cleaning filter cylinder 50.

[0031] In practical applications, the housing 10 is also provided with a solid outlet 103 and a liquid outlet 102 corresponding to the cleaning and filtering device 5, as well as a pair of annular baffles located on both sides of the liquid outlet 102. The annular support plate 57 is provided with a first annular baffle 573 corresponding to the annular baffle on the corresponding side. The annular cover plate 58 is provided with a second annular baffle 583 corresponding to the annular baffle on the corresponding side. The main shaft 4 is provided with a signal guide slip ring for supplying power to the ultrasonic vibrator 5101.

[0032] In actual use, the filter cloth 9 is fitted onto the filter cloth support cylinder 55, and then the filter cloth 9 is wound from between the corresponding pair of guide rollers 54 onto the pair of tension rollers 5301, the pair of drive shafts 5201, and the pair of cylindrical cleaning chambers (see...). Figure 11 (As shown). During operation, the speed difference between the inner drive shaft 3 and the main shaft 4 drives the drive gear 3082 to rotate, which in turn drives the filter cloth 9 wrapped around the drive shaft 5201 to rotate through the driven gear 52012 and the drive shaft 5201. This allows the filter cloth 9 to be cleaned when it passes through the filter cloth cleaning chamber 510. Before entering the filter cloth cleaning chamber 510, most of the material adhering to the filter cloth 9 has been scraped off by the scraper 56, so that the filter cloth 9 can be thoroughly cleaned in the filter cloth cleaning chamber 510. In actual operation, the cleaning effect can be improved by periodically adding new cleaning fluid (replacing the original cleaning fluid) to the filter cloth cleaning chamber 510. Example 2:

[0033] The vertical filter centrifuge of the present invention, except that it is provided with a plurality of pusher scrapers 500 along the circumferential direction on the cleaning filter cylinder 50 to cooperate with the dry material outlet 501, has the same principle and structure as that of embodiment 1, and will not be described again here.

[0034] In summary, these are merely preferred embodiments of the present invention and are not intended to limit the scope of the invention. All equivalent variations and modifications made to the shape, structure, features, and spirit described in the claims of the present invention should be included within the protection scope of the claims of the present invention.

Claims

1. A filter apparatus in a filter centrifuge, comprising: The utility model discloses a machine base, inner transmission axle, the main shaft of activity setting in the machine base, and the differential mechanism and the casing of setting on the machine base, and the side cover is set up on the casing, and the feeding pipeline and washing pipeline are set up in the side cover, the main shaft is hollow structure, the inner transmission axle is set in the main shaft, and the corresponding end of main shaft and inner transmission axle is connected with the corresponding output of differential mechanism, and the other end of inner transmission axle is provided with the inner spiral connection flange, and the other end of main shaft is provided with annular support plate, and the inner spiral connection flange is provided with inner spiral cylinder, and the inner spiral cylinder is provided with inner spiral blade, and its characterized in that: annular support plate is provided with cleaning filter device, and the cleaning filter device includes: the cleaning filter cylinder of setting on the outer side of inner spiral blade, and the cleaning filter cylinder includes: the cleaning filter cylinder body of setting on annular support plate, and the other end of cleaning filter cylinder body is provided with annular cover plate, and a plurality of liquid passing holes are seted up on the cleaning filter cylinder body, and at least one cleaning cylindrical convex part, at least one tension cylindrical convex part and at least one filter cloth drive cylindrical convex part are seted up on the cleaning filter cylinder body along the circumference, the cleaning cylindrical convex part, tension cylindrical convex part and filter cloth drive cylindrical convex part all outwardly convex, and are arranged along the axial direction, the filter cloth cleaning cavity of opening bottom is seted up in the cleaning cylindrical convex part along the axial direction, the filter cloth tension cavity of opening bottom is seted up in the tension cylindrical convex part along the axial direction, the filter cloth drive cavity of opening bottom is seted up in the filter cloth drive cylindrical convex part along the axial direction, a plurality of liquid passing holes are seted up on the tension cylindrical convex part and pass through the corresponding filter cloth tension cavity, a plurality of liquid passing holes are seted up on the filter cloth drive cylindrical convex part and pass through the corresponding filter cloth drive cavity, a plurality of overflow holes are seted up on the cleaning cylindrical convex part at least one side close to the cleaning filter cylinder body, annular cover plate is provided with the sealing cover of cooperating with the corresponding port of filter cloth cleaning cavity, filter cloth tension cavity and filter cloth drive cavity respectively, the front end of cleaning cylindrical convex part, tension cylindrical convex part and filter cloth drive cylindrical convex part exceeds the cleaning filter cylinder body, thereby forms the discharge port between the front end of cleaning cylindrical convex part and the front end of tension cylindrical convex part, between the front end of cleaning cylindrical convex part and the front end of filter cloth drive cylindrical convex part and between the front end of tension cylindrical convex part and the front end of filter cloth drive cylindrical convex part.The filter cleaning cartridge body is provided with a filter cloth supporting cylinder, and a plurality of liquid passing holes are arranged on the filter cloth supporting cylinder. The filter cloth cleaning cavity, the filter cloth tensioning cavity and the filter cloth transmission cavity are respectively provided with a pair of guide rollers arranged along the axial direction at the bottom opening and a scraper between the pair of guide rollers. The filter cloth transmission cavity is provided with a transmission shaft for driving the rotation of the filter cloth and a filter cloth pressing device matched with the transmission shaft. The transmission shaft extends from the corresponding sealing cover and is provided with a driven gear. The hollow gear seat is arranged in the inner spiral cylinder body, and a driving gear engaged with the driven gear is arranged in the hollow gear seat. The feed pipeline and the washing pipeline are movably arranged in the gear seat. The filter cloth cleaning cavity is provided with a filter cloth cleaning device, and the filter cloth tensioning cavity is provided with a filter cloth tensioning device.

2. The filter apparatus in a filter centrifuge according to claim 1, characterized in that: The cleaning filter cartridge is provided with a pair of oppositely arranged cleaning cylindrical protrusions, a pair of oppositely arranged tensioning cylindrical protrusions and a pair of oppositely arranged filter cloth driving cylindrical protrusions along the circumference, so that the two sides of the filter cloth cleaning cavity are the filter cloth tensioning cavity and the filter cloth driving cavity respectively, the two sides of the filter cloth tensioning cavity are the filter cloth driving cavity and the filter cloth cleaning cavity respectively, and the two sides of the filter cloth driving cavity are the filter cloth tensioning cavity and the filter cloth cleaning cavity respectively; the pair of filter cloth cleaning cavities, the pair of filter cloth tensioning cavities and the pair of filter cloth driving cavities are uniformly arranged along the circumference.

3. The filter apparatus in a filter centrifuge according to claim 1, wherein: The corresponding end of the filter cloth supporting cylinder is provided with an annular limiting edge inwardly, and the annular supporting plate is provided with an axial blocking mechanism matched with the annular limiting edge.

4. The filter apparatus in a filter centrifuge according to claim 3, wherein: The axial blocking mechanism comprises a pin shaft provided on the annular supporting plate, a roller matched with the annular limiting edge is provided on the pin shaft through a bearing, a ring-shaped clamping groove is formed in the end of the pin shaft, and a clamping spring is arranged in the ring-shaped clamping groove of the end of the pin shaft.

5. The filter apparatus in a filter centrifuge as claimed in claim 1, wherein: The filter cloth cleaning device comprises an ultrasonic vibration rod, a cylindrical cleaning chamber surrounded by a plurality of annular supporting rods is arranged in the filter cloth cleaning cavity, one end of all the supporting rods is movably arranged in the corresponding sealing cover through a cleaning chamber shaft head, an axle head sealing element is arranged between the cleaning chamber shaft head and the corresponding sealing cover, the other end of all the supporting rods is movably arranged in the corresponding port of the filter cloth cleaning cavity through a cleaning chamber shaft sleeve, and an axle sleeve sealing element is arranged between the cleaning chamber shaft sleeve and the corresponding port of the filter cloth cleaning cavity, and the ultrasonic vibration rod extends into the cylindrical cleaning chamber from the cleaning chamber shaft sleeve and is fixed on the corresponding port of the filter cloth cleaning cavity.

6. The filter apparatus in a filter centrifuge according to claim 5, wherein: A protective sleeve is further sleeved on the ultrasonic vibration rod.

7. The filter apparatus in a filter centrifuge as claimed in claim 1, wherein: The filter cloth tensioning device comprises a tensioning roller, the two ends of the tensioning roller are respectively provided with tensioning supporting shafts, the tensioning supporting shafts are provided with tensioning supporting sleeves through bearings, and tensioning supporting sealing elements are further arranged between the tensioning supporting shafts and the tensioning supporting sleeves, a tensioning cavity cover plate is arranged in the corresponding port of the filter cloth tensioning cavity, tensioning sliding grooves radially arranged relative to the cleaning filter cylinder body are formed in the tensioning cavity cover plate and the corresponding sealing cover respectively, the two side walls of the tensioning sliding grooves are parallel to each other, and the tensioning supporting sleeve is movably arranged in the corresponding tensioning sliding groove, so that the tensioning roller can move along the radial direction of the cleaning filter cylinder body.

8. The filter apparatus in a filter centrifuge according to claim 7, wherein, A tensioning arc-shaped roller surface is centrally and symmetrically arranged on the tensioning roller.

9. The filter apparatus in a filter centrifuge as claimed in claim 1, wherein, The specific structure of the filter cloth pressing device comprises a pair of pressing rollers oppositely arranged on the two sides of a driving shaft in the filter cloth driving cavity, a centrally and symmetrically arranged outer convex type driving arc-shaped roller surface is arranged on the driving shaft, and an inner concave type pressing arc-shaped roller surface matched with the driving arc-shaped roller surface is arranged on the pressing roller.

10. The filter apparatus in a filter centrifuge according to claim 9, wherein, The specific installation mode of the compression roller is that the columnar protruding part for driving the filter cloth is provided with a compression roller installation hole and a compression setting chamber arranged around the compression roller installation hole on both sides of the columnar protruding part, the compression setting chamber is composed of a chamber body surrounded by a pair of side plates and a pair of end plates arranged on the columnar protruding part around the compression roller installation hole and a top plate arranged on the chamber body, a compression adjusting groove arranged radially relative to the transmission shaft is formed on each end plate of the compression setting chamber, and an adjusting locking screw hole communicated with the compression adjusting groove is formed on each end plate, and the two ends of the compression roller are movably arranged in the compression adjusting groove of the corresponding end plate of the corresponding compression setting chamber, and a compression adjusting screw is arranged in the adjusting locking screw hole.

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